FN Thomson Reuters Web of Science™ VR 1.0 PT J AU Gaffney, JS Marley, NA Orlandini, KA AF Gaffney, JS Marley, NA Orlandini, KA TI Natural radionuclides on fine aerosols: Be-7 and Pb-210/Bi-210/Po-210 transport indicators. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Div Environm Res, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 197-ENVR BP U450 EP U451 PN 1 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002318 ER PT J AU Galli, G AF Galli, G TI Modeling liquids under pressure and in a biological environment. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 115-PHYS BP U195 EP U195 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101047 ER PT J AU Garde, S Hummer, G Pratt, LR AF Garde, S Hummer, G Pratt, LR TI Effect of chain length on microscopic density fluctuations and solvation in polymeric fluids. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Rensselaer Polytech Inst, Dept Chem Engn, Troy, NY 12180 USA. NIDDK, NIH, Chem Phys Lab, Bethesda, MD 20892 USA. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RI Pratt, Lawrence/H-7955-2012; Hummer, Gerhard/A-2546-2013 OI Pratt, Lawrence/0000-0003-2351-7451; Hummer, Gerhard/0000-0001-7768-746X NR 0 TC 0 Z9 0 U1 1 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 268-PMSE BP U381 EP U381 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690102139 ER PT J AU Gardner, TH Berry, DA Lyons, KD Monahan, MJ James, RE AF Gardner, TH Berry, DA Lyons, KD Monahan, MJ James, RE TI Fuel processor integrated H2S catalytic partial oxidation technology for sulfur removal in fuel cell power plants. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 70-FUEL BP U470 EP U470 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002401 ER PT J AU Garnov, AY Jiang, J Rao, LF AF Garnov, AY Jiang, J Rao, LF TI Thermodynamic studies of actinide complexation with carboxylate ligands at elevated temperatures. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Berkeley Natl Lab, Div Chem Sci, Glenn T Seaborg Ctr, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 181-NUCL BP U33 EP U33 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100170 ER PT J AU Garrett, JT Siedlecki, CA Lin, JS Runt, J AF Garrett, JT Siedlecki, CA Lin, JS Runt, J TI Microdomain morphology and phase separation of poly(urethane urea) block copolymers. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA. Penn State Univ, Dept Surg, University Pk, PA 16802 USA. Penn State Univ, Dept Bioengn, University Pk, PA 16802 USA. Oak Ridge Natl Lab, Oak Ridge, TN USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 470-POLY BP U326 EP U326 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101800 ER PT J AU Garrett, PE Becker, JA Bernstein, LA Younes, W Nelson, RO Devlin, M Fotiades, N AF Garrett, PE Becker, JA Bernstein, LA Younes, W Nelson, RO Devlin, M Fotiades, N TI Measurements of neutron-induced reactions on Y-89 and Zr-90. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. Lawrence Livermore Natl Lab, N Div, Livermore, CA USA. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RI Devlin, Matthew/B-5089-2013 OI Devlin, Matthew/0000-0002-6948-2154 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 130-NUCL BP U25 EP U25 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100119 ER PT J AU Georgiev, G Gilfoy, N Dubner, S Cebe, P Capel, M AF Georgiev, G Gilfoy, N Dubner, S Cebe, P Capel, M TI Phase transitions in a liquid crystalline co-polyester studied by SAXS, modulated calorimetry, and optical ellipsometry. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Tufts Univ, Dept Phys, Ctr Sci & Technol, Medford, MA 02155 USA. Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 73-PMSE BP U351 EP U351 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101944 ER PT J AU Gerdes, JM Wilson, PA Biegon, A AF Gerdes, JM Wilson, PA Biegon, A TI Computational studies of 3-D molecular similarity by ligand superposition: Generation of a pharmacophore model of NMDA noncompetitive inhibitors. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Cent Washington Univ, Dept Chem, Ellensburg, WA 98926 USA. Lawrence Berkeley Natl Lab, Ctr Funct Imaging, Berkeley, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 221-MEDI BP U677 EP U677 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690003549 ER PT J AU Giesbrecht, GR Schmidt, JAR Anderson, LL Bergman, RG Arnold, J AF Giesbrecht, GR Schmidt, JAR Anderson, LL Bergman, RG Arnold, J TI Reactivity of complexes with new N-donor supporting ligands. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 46-INOR BP U552 EP U552 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002774 ER PT J AU Gilbert, EP AF Gilbert, EP TI Microstructure determination of Nafion membranes. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Argonne, IL 60439 USA. RI Gilbert, Elliot/A-5566-2010 OI Gilbert, Elliot/0000-0001-6413-7813 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 340-PMSE BP U392 EP U392 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690102211 ER PT J AU Ginder-Vogel, MA Smith, DM Ruggiero, CE Reilly, SD Solderhom, L Matonic, JH Hersman, LE Forsythe, JH Skanthakumar, S Neu, MP AF Ginder-Vogel, MA Smith, DM Ruggiero, CE Reilly, SD Solderhom, L Matonic, JH Hersman, LE Forsythe, JH Skanthakumar, S Neu, MP TI Actinyl interaction with iron and manganese oxides and (oxy)hydroxides under abiotic and biotic conditions. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, Div Chem, CSIC, Los Alamos, NM 87545 USA. Argonne Natl Lab, Argonne, IL 60439 USA. Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 119-NUCL BP U23 EP U24 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100108 ER PT J AU Gold, DM Chinni, RC Angel, SM Colston, BW Brown, SB AF Gold, DM Chinni, RC Angel, SM Colston, BW Brown, SB TI In situ detection of volatile pollutants using resonance-enhanced multiphoton ionization spectroscopy. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Med Technol Program, Livermore, CA 94550 USA. Univ S Carolina, Dept Chem & Biochem, Columbia, SC 29208 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 186-NUCL BP U34 EP U34 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100175 ER PT J AU Grant, PN AF Grant, PN TI WMD smuggling and multiple homicide: What the heck is this stuff doing in Sherry's symposium? SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Forens Sci Ctr, Livermore, CA 94550 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 71-NUCL BP U16 EP U16 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100063 ER PT J AU Grate, JW Egorov, OB AF Grate, JW Egorov, OB TI Advances in radioanalytical chemistry using automated sequential injection analysis. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, EMSL, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 59-NUCL BP U14 EP U14 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100051 ER PT J AU Grate, JW Egorov, OB AF Grate, JW Egorov, OB TI Automated radiochemical separation, analysis, and sensing. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, EMSL, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 10-IEC BP U508 EP U508 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002605 ER PT J AU Guico, RS Richter, AG Wang, J Shull, KR AF Guico, RS Richter, AG Wang, J Shull, KR TI X-ray standing wave measurements of gold nanoparticles in polymeric thin films. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, User Program Div, Argonne, IL 60439 USA. Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 16-PMSE BP U342 EP U342 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101887 ER PT J AU Gutowski, MS Skurski, P Li, X Wang, LS AF Gutowski, MS Skurski, P Li, X Wang, LS TI Band gap evolution in the (MgO)(n) (n=1-5) clusters and instability of the polar (111) surface of MgO. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Richland, WA 99352 USA. Univ Gdansk, Dept Chem, PL-80952 Gdansk, Poland. Washington State Univ, Pullman, WA 99164 USA. Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 135-PHYS BP U198 EP U198 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101067 ER PT J AU Gygi, F Galli, G AF Gygi, F Galli, G TI First-principles simulations of shock front propagation in liquid deuterium. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 33-NUCL BP U10 EP U10 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100025 ER PT J AU Gygi, F Galli, G AF Gygi, F Galli, G TI First-principles simulations of shock front propagation in liquid deuterium. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 172-PHYS BP U204 EP U204 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101103 ER PT J AU Halada, GP Eng, C Francis, AJ Dodge, CJ Gillow, JB AF Halada, GP Eng, C Francis, AJ Dodge, CJ Gillow, JB TI Mechanisms of interaction of uranium with corroded steel surfaces. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 SUNY Stony Brook, Dept Mat Sci & Engn, Stony Brook, NY 11794 USA. Brookhaven Natl Lab, Dept Environm Sci, Upton, NY 11973 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 116-NUCL BP U23 EP U23 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100105 ER PT J AU Han, CC Schmidt, G Nakatani, AI Butler, PD AF Han, CC Schmidt, G Nakatani, AI Butler, PD TI Small angle neutron scattering study on polymer-clay solutions. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Natl Inst Stand & Technol, Div Polymers, Gaithersburg, MD 20899 USA. ORNL, Oak Ridge, TN USA. RI Butler, Paul/D-7368-2011 NR 0 TC 0 Z9 0 U1 1 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 132-PMSE BP U360 EP U360 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690102003 ER PT J AU Hanson, LA Harsh, JB Flury, M Minard, K Strawn, DG AF Hanson, LA Harsh, JB Flury, M Minard, K Strawn, DG TI Tracking the movement of copper-saturated colloidal silica through packed soil columns using H-1-NMR. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Washington State Univ, Dept Crop & Soil Sci, Pullman, WA 99164 USA. Washington State Univ, Ctr Multiphase Environm Res, Pullman, WA 99164 USA. Pacific NW Natl Lab, Environm & Mol Sci Lab, Richland, WA USA. Univ Idaho, Dept Plant Soil & Entomol Sci, Moscow, ID 83843 USA. NR 0 TC 0 Z9 0 U1 1 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 88-NUCL BP U19 EP U19 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100080 ER PT J AU Hardtke, D AF Hardtke, D TI Chemical and kinetic freeze-out conditions at RHIC. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Calif Berkeley, LBNL, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 199-NUCL BP U36 EP U36 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100187 ER PT J AU Harley, NH Chittaporn, P Heikkinen, MSA Fisenne, IM AF Harley, NH Chittaporn, P Heikkinen, MSA Fisenne, IM TI Personal and environmental low dose exposure assessment measurements at Fernald. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 NYU, Sch Med, Div Environm Med, New York, NY 10016 USA. US DOE, Environm Measurements Lab, Washington, DC USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 190-NUCL BP U35 EP U35 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100179 ER PT J AU Hauck, MA Ginosar, DM Bala, GA Anderson, RP AF Hauck, MA Ginosar, DM Bala, GA Anderson, RP TI Hemoproteins-catalyzed oxidations of organosulfur compounds in reverse micelles, microemulsions, and emulsions in supercritical fluids. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Idaho Natl Engn & Environm Lab, Dept Chem, Idaho Falls, ID 83415 USA. Idaho Natl Engn & Environm Lab, Dept Biotechnol, Idaho Falls, ID 83415 USA. Idaho Natl Engn & Environm Lab, Fossil Energy Technol, Idaho Falls, ID 83415 USA. RI Ginosar, Daniel/C-2357-2017 OI Ginosar, Daniel/0000-0002-8522-1659 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 487-ORGN BP U121 EP U121 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100685 ER PT J AU Hay, BP Dixon, DA Rapko, BM AF Hay, BP Dixon, DA Rapko, BM TI Computational design of metal ion sequestering agents. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 157-NUCL BP U30 EP U30 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100146 ER PT J AU Hay, BP Dixon, DA Lumetta, GJ Rapko, BM McNamara, BK AF Hay, BP Dixon, DA Lumetta, GJ Rapko, BM McNamara, BK TI Structural aspects of hydrogen bonding between alcohols and oxyanions. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. Pacific NW Natl Lab, Radiochem Proc Grp, Richland, WA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 2-IEC BP U507 EP U507 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002597 ER PT J AU Head-Gordon, M AF Head-Gordon, M TI Fast methods for describing electron correlation. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 47-COMP BP U390 EP U390 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690001947 ER PT J AU Headrick, J Sepaniak, M Datskos, P Alexandratos, SD AF Headrick, J Sepaniak, M Datskos, P Alexandratos, SD TI Chelating scintillation fibers for measurements of cesium-137. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. Oak Ridge Natl Lab, Engn Technol Div, Oak Ridge, TN USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 61-NUCL BP U14 EP U14 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100053 ER PT J AU Hecker, SS AF Hecker, SS TI Plutonium science for stockpile stewardship. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 18-NUCL BP U8 EP U8 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100012 ER PT J AU Heineman, WR Maizels, M Stegmiller, M Thomas, JD Ross, S Rarog, T Conklin, S Wherley, J Zudans, I Monk, D Ridgway, TH Seliskar, CJ Bryan, SA Hubler, TL AF Heineman, WR Maizels, M Stegmiller, M Thomas, JD Ross, S Rarog, T Conklin, S Wherley, J Zudans, I Monk, D Ridgway, TH Seliskar, CJ Bryan, SA Hubler, TL TI Spectroelectrochemical sensor for ferrocyanide and technetium. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Cincinnati, Dept Chem, Cincinnati, OH 45221 USA. Pacific NW Natl Lab, Radiochem Proc Lab, Richland, WA USA. Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 182-NUCL BP U34 EP U34 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100171 ER PT J AU Hering, JG Giammar, DE Wang, ZM Joly, AG AF Hering, JG Giammar, DE Wang, ZM Joly, AG TI Investigation of the structure of surface complexes using a fluorescent probe. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 CALTECH, Pasadena, CA 91125 USA. Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 33-ENVR BP U424 EP U424 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002154 ER PT J AU Herold, DA Lu, CM Rivera, JD Vogel, JS Buchholz, BA Burton, DW Deftos, LJ Fitzgerald, RL AF Herold, DA Lu, CM Rivera, JD Vogel, JS Buchholz, BA Burton, DW Deftos, LJ Fitzgerald, RL TI Mass spectrometric immunoassay: Parathyroid hormone related protein for cancer detection. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 VA Healthcare Syst, Clin Chem Sect, La Jolla, CA 92161 USA. Lawrence Livermore Natl Lab, Livermore, CA USA. VA Healthcare Syst, Endocrine Syst, San Diego, CA USA. RI Buchholz, Bruce/G-1356-2011 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 42-NUCL BP U11 EP U11 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100034 ER PT J AU Hickner, MA Wang, F Kim, YS Privovar, B Zawodzinski, TA McGrath, JE AF Hickner, MA Wang, F Kim, YS Privovar, B Zawodzinski, TA McGrath, JE TI Chemistry-morphology-property relationships of novel proton exchange membranes for direct methanol fuel cells. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Virginia Polytech Inst & State Univ, Dept Chem, Blacksburg, VA 24061 USA. Los Alamos Natl Lab, Los Alamos, NM USA. NR 0 TC 2 Z9 2 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 51-FUEL BP U467 EP U467 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002382 ER PT J AU Higgins, SR Greer, B Boram, LH Eggleston, CM Jordan, G Knauss, KG AF Higgins, SR Greer, B Boram, LH Eggleston, CM Jordan, G Knauss, KG TI Study of heterogeneous kinetics at carbonate mineral surfaces using hydrothermal atomic force microscopy. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Wyoming, Dept Geol & Geophys, Laramie, WY 82071 USA. Ruhr Univ Bochum, Inst Geol Mineral & Geophys, D-4630 Bochum, Germany. Lawrence Livermore Natl Lab, Geosci & Environm Technol Div, Livermore, CA USA. RI knauss, kevin/K-2827-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 25-GEOC BP U488 EP U488 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002503 ER PT J AU Hirsch, RF AF Hirsch, RF TI Analytical chemistry and the American Chemical Society: The first 125 years. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE, Div Med Sci, Off Biol & Environm Res, Germantown, MD 20874 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 1-ANYL BP U79 EP U79 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690000309 ER PT J AU Hjelm, RP AF Hjelm, RP TI Soft condensed matter research at the Manuel Lujan, Jr. Neutron Scattering Center of the Los Alamos National Laboratory. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, Los Alamos Neutron Sci Ctr, Los Alamos, NM 87545 USA. RI Lujan Center, LANL/G-4896-2012 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 107-PMSE BP U356 EP U356 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101978 ER PT J AU Hobbs, DT Mattigod, SV Liu, J Nie, ZM AF Hobbs, DT Mattigod, SV Liu, J Nie, ZM TI Formation of aluminosilicate phases pertinent to the evaporation of high-level nuclear wastes. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Westinghouse Savannah River Co, Savannah River Technol Ctr, Aiken, SC 29860 USA. Pacific NW Natl Lab, Richland, WA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 143-NUCL BP U28 EP U28 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100132 ER PT J AU Hobbs, ML Erickson, KL Chu, TY Fletcher, TH Clayton, D AF Hobbs, ML Erickson, KL Chu, TY Fletcher, TH Clayton, D TI Modeling decomposition of polyurethane foam encapsulants. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Sandia Natl Labs, Thermal & React Proc Dept, Engn Sci Ctr, Albuquerque, NM 87185 USA. Brigham Young Univ, Dept Chem Engn, Provo, UT 84602 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 155-NUCL BP U29 EP U30 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100144 ER PT J AU Hoffman, RD Dietrich, F Mustafa, M AF Hoffman, RD Dietrich, F Mustafa, M TI Rare earth nuclear reaction cross sections for radiochemical diagnostics. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Nucl Theory & Modeling Grp, Livermore, CA 94551 USA. Lawrence Livermore Natl Lab, A Div, Livermore, CA 94551 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 133-NUCL BP U26 EP U26 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100122 ER PT J AU Holm, AP Kauzlarich, SM Morton, SA Waddill, GD Pickett, WE Tobin, JG AF Holm, AP Kauzlarich, SM Morton, SA Waddill, GD Pickett, WE Tobin, JG TI Characterization of a new half-metallic ferromagnet: Yb14MnSb11. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Calif Davis, Dept Chem, Davis, CA 95616 USA. Univ Missouri, Dept Phys, Rolla, MO 65401 USA. Univ Calif Davis, Dept Phys, Davis, CA USA. Lawrence Livermore Natl Lab, Livermore, CA USA. RI Tobin, James/O-6953-2015 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 595-INOR BP U635 EP U635 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690003322 ER PT J AU Hood, RQ Militzer, R Pollock, EL Galli, G AF Hood, RQ Militzer, R Pollock, EL Galli, G TI Ab initio simulations of hydrogen at megabar pressures. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 32-NUCL BP U10 EP U10 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100024 ER PT J AU Horner, DA Zapol, P Curtiss, LA AF Horner, DA Zapol, P Curtiss, LA TI Computational thermochemistry of the siting of Cu+ ions in zeolite ZSM-5. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 N Cent Coll, Dept Chem, Naperville, IL 60540 USA. Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. RI Zapol, Peter/G-1810-2012 OI Zapol, Peter/0000-0003-0570-9169 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 326-PHYS BP U226 EP U227 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101257 ER PT J AU Hrma, P AF Hrma, P TI Settling of solids in a HLW glass melter. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Adv Proc & Applicat Grp, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 209-NUCL BP U38 EP U38 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100198 ER PT J AU Hruby, J Henderson, C AF Hruby, J Henderson, C TI LIGA microsystems and stockpile stewardship applications. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Sandia Natl Labs, Livermore, CA 94551 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 94-NUCL BP U20 EP U20 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100086 ER PT J AU Hubler, TL Bryan, SA Carver, CT Thornton, ME Hammack, KL Seliskar, CJ Heineman, WR AF Hubler, TL Bryan, SA Carver, CT Thornton, ME Hammack, KL Seliskar, CJ Heineman, WR TI Development of new ion-exchange polymers for technetium sensors applicable to the Vadose Zone. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Richland, WA 99352 USA. Univ Cincinnati, Dept Chem, Cincinnati, OH 45221 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 80-NUCL BP U17 EP U17 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100072 ER PT J AU Hunter, DB Duff, MC AF Hunter, DB Duff, MC TI Applications of micro-spectroscopy and chemical imaging to delineate contaminant associations in heterogeneous mineral environments. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Westinghouse Savannah River Co, Savannah River Technol Ctr, Aiken, SC 29808 USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 33-GEOC BP U489 EP U489 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002511 ER PT J AU Hurum, D Agrios, AG Gray, KA Rajh, T Thurnauer, MC AF Hurum, D Agrios, AG Gray, KA Rajh, T Thurnauer, MC TI EPR studies of Degussa P25 photochemistry: Insight into mixed phase titanium dioxide catalytic activity. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Northwestern Univ, Dept Civil Engn, Evanston, IL 60208 USA. Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. RI Gray, Kimberly/B-6989-2009 NR 0 TC 1 Z9 1 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 55-ENVR BP U427 EP U427 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002176 ER PT J AU Jellinek, J AF Jellinek, J TI Properties of solids: Evolution of the metallic state and crystal growth. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 100-PHYS BP U193 EP U193 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101032 ER PT J AU Jeong, B Gutowska, A AF Jeong, B Gutowska, A TI Biodegradable thermoreversible hydrogel and their biomedical applications. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 397-POLY BP U315 EP U315 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101727 ER PT J AU Johnson, CD Shamsi, A AF Johnson, CD Shamsi, A TI Effect of pressure on the carbon deposition route in co, reforming of (CH4)-C-13 on noble metal catalysts. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE, Natl Energy Technol Lab, ORISE, Morgantown, WV 26505 USA. US DOE, Morgantown, WV USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 43-FUEL BP U465 EP U465 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002374 ER PT J AU Johnson, LA Hodge, GM AF Johnson, LA Hodge, GM TI Building an e-print service: Addressing the social challenge in environmental management science. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE, Off Sci & Tech Informat, Oak Ridge, TN 37831 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 72-CINF BP U276 EP U276 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690001424 ER PT J AU Johnson, S AF Johnson, S TI Bose-Einstein Correlation measurements at RHIC with PHENIX. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Dept Phys, Livermore, CA 94550 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 201-NUCL BP U36 EP U37 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100189 ER PT J AU Jonah, CD Bartels, DM Takahashi, K Dimitrijevic, NM AF Jonah, CD Bartels, DM Takahashi, K Dimitrijevic, NM TI Pulse-radiolytic studies of the structure of supercritical cosolvent systems. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. Hokkaido Univ, Div Quantum Energy Engn, Sapporo, Hokkaido, Japan. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 353-CHED BP U245 EP U245 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690001240 ER PT J AU Kalantar, DH Belak, J Colvin, JD Kumar, M Lorenz, KT Mikaelian, KO Pollaine, S Remington, BA Weber, SV Wiley, LG Allen, AM Loveridge-Smith, A Wark, JS Meyers, MA AF Kalantar, DH Belak, J Colvin, JD Kumar, M Lorenz, KT Mikaelian, KO Pollaine, S Remington, BA Weber, SV Wiley, LG Allen, AM Loveridge-Smith, A Wark, JS Meyers, MA TI Laser-based high pressure, high strain-rate solid-state experiments. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, NIF Programs, Livermore, CA 94550 USA. Univ Oxford, Oxford OX1 2JD, England. Univ Calif San Diego, San Diego, CA 92103 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 35-NUCL BP U10 EP U10 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100027 ER PT J AU Kathmann, SM Schenter, GK Garrett, BC AF Kathmann, SM Schenter, GK Garrett, BC TI Nucleation kinetics and thermodynamics: From clusters to condensed phases. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. RI Schenter, Gregory/I-7655-2014 OI Schenter, Gregory/0000-0001-5444-5484 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 48-PHYS BP U186 EP U187 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100980 ER PT J AU Kavallieratos, K Bryan, JC Sachleben, RA Van Berkel, GJ Kelly, MA Danby, AM Bowman-James, K Moyer, BA AF Kavallieratos, K Bryan, JC Sachleben, RA Van Berkel, GJ Kelly, MA Danby, AM Bowman-James, K Moyer, BA TI Dual-host combinations: From enhancing cesium nitrate extraction to attenuating the Hofmeister "bias". SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Oak Ridge Natl Lab, Chem Separat Grp, Oak Ridge, TN USA. Florida Int Univ, Dept Chem, Miami, FL 33199 USA. Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA. Univ Kansas, Dept Chem, Lawrence, KS 66045 USA. RI Solominow, Sonia/A-4021-2008; Moyer, Bruce/L-2744-2016 OI Moyer, Bruce/0000-0001-7484-6277 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 81-IEC BP U519 EP U519 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002676 ER PT J AU Keenan, MR Zeng, WX Niemczyk, TM Haaland, DM AF Keenan, MR Zeng, WX Niemczyk, TM Haaland, DM TI Ir characterization of adsorption on Type A zeolite. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Sandia Natl Labs, IDEA Dept, Albuquerque, NM USA. Univ New Mexico, Dept Chem, Albuquerque, NM 87131 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 95-NUCL BP U20 EP U20 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100087 ER PT J AU Keenan, MR Kotula, PG AF Keenan, MR Kotula, PG TI Chemical phase analysis via energy dispersive x-ray spectrum imaging. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Sandia Natl Labs, IDEA Dept, Albuquerque, NM 87185 USA. Sandia Natl Labs, Dept Mat Characterizat, Albuquerque, NM USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 90-NUCL BP U19 EP U19 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100082 ER PT J AU Kelly, D Paffett, MT AF Kelly, D Paffett, MT TI Kinetic modeling of gas generation on plutonium oxides. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 53-NUCL BP U13 EP U13 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100045 ER PT J AU Kelly, RJ AF Kelly, RJ TI Perchloric acid hood design: What works and what doesn't. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Hazards Control Dept, Livermore, CA 94551 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 23-CHAS BP U263 EP U263 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690001348 ER PT J AU Kelly, RJ AF Kelly, RJ TI Safe handling of beryllium in the laboratory: Toxicology update and unresolved issues. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Hazards Control Dept, Livermore, CA 94551 USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 16-CHAS BP U262 EP U262 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690001342 ER PT J AU Kelly, SD Kemner, KM O'Loughlin, EJ Fein, JB Fowle, DA Boyanov, MI Bunker, BA Yee, N Coates, JD AF Kelly, SD Kemner, KM O'Loughlin, EJ Fein, JB Fowle, DA Boyanov, MI Bunker, BA Yee, N Coates, JD TI Xafs investigations of interactions of U(VI) with Bacillus subtilis, green rust, and bio-oxidizing Dechlorosoma suillum. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Div Environm Res, Argonne, IL 60439 USA. Univ Notre Dame, Notre Dame, IN 46556 USA. Univ Windsor, Windsor, ON N9B 3P4, Canada. So Illinois Univ, Dept Microbiol, Carbondale, IL 62901 USA. RI ID, MRCAT/G-7586-2011 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 2-ENVR BP U419 EP U419 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002123 ER PT J AU Kent, MS Yim, H Majewski, J Smith, GS Satija, S Shin, K AF Kent, MS Yim, H Majewski, J Smith, GS Satija, S Shin, K TI Adsorption of myoglobin to metal-chelating lipid monolayers at the air-liquid interface by neutron reflectivity. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Sandia Natl Labs, Albuquerque, NM 87185 USA. Los Alamos Natl Lab, LANSCE, Los Alamos, NM USA. NIST, Reactor Div, Gaithersburg, MD USA. RI Shin, Kwanwoo /C-4979-2012; Lujan Center, LANL/G-4896-2012 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 200-PMSE BP U371 EP U371 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690102071 ER PT J AU Keogh, DW Tait, CD Clark, DL Gordon, PL Hawkins, HT Palmer, PD Scott, BL Veirs, DK AF Keogh, DW Tait, CD Clark, DL Gordon, PL Hawkins, HT Palmer, PD Scott, BL Veirs, DK TI Selective crystallization and characterization of the technologically important {Pu(NO3)6}2-species. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, GT Seaborg Inst, Div Chem, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, GT Seaborg Inst Transactinium Sci, Div Nucl Mat Technol, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, GT Seaborg Inst, Environm Div, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 1 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 107-NUCL BP U22 EP U22 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100097 ER PT J AU Kim, YS Wang, F Hickner, M Zawodzinski, TA McGrath, JE AF Kim, YS Wang, F Hickner, M Zawodzinski, TA McGrath, JE TI Heteropolyacid/sulfonated poly(arylene ether sulfone) composites for protone exchange membranes fuel cells. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Virginia Polytech Inst & State Univ, Dept Chem, Blacksburg, VA 24061 USA. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. NR 0 TC 2 Z9 2 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 311-PMSE BP U388 EP U388 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690102182 ER PT J AU Kirton, GF Huang, QR Dubin, PL Lal, J AF Kirton, GF Huang, QR Dubin, PL Lal, J TI Characterization of carboxylate-terminated dendrimers and counterion binding studies using SANS. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Indiana Univ Purdue Univ, Dept Chem, Indianapolis, IN 46202 USA. Stanford Univ, Dept Chem Engn, Stanford, CA 94305 USA. Argonne Natl Lab, Div Intense Pulsed Neutron Source, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 139-PMSE BP U361 EP U361 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690102010 ER PT J AU Klei, SR Golden, JT Tilley, TD Bergman, RG AF Klei, SR Golden, JT Tilley, TD Bergman, RG TI Exchange of deuterium from D2O into organic compounds using late transition metal catalysts. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Los Alamos Natl Lab, Inorgan & Struct Chem Div, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 298-INOR BP U591 EP U591 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690003026 ER PT J AU Klinckman, TR Dixon, DA Hay, BP AF Klinckman, TR Dixon, DA Hay, BP TI Mm3 force field for metal complexes with aminies, carboxylates, and aminocarboxylates. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 94-INOR BP U559 EP U560 PN 1 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002822 ER PT J AU Krauss, RM AF Krauss, RM TI Dietary fat, genetics, and cardiovascular disease. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Atherosclerosis & Vasc Biol Grp, Donner Lab, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 114-AGFD BP U43 EP U43 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690000114 ER PT J AU Krumpelt, M Ahmed, S Krause, T Kopasz, J Kumar, R AF Krumpelt, M Ahmed, S Krause, T Kopasz, J Kumar, R TI Fuels processing for small fuel cell systems. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 86-FUEL BP U472 EP U472 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002417 ER PT J AU Labouriau, A Jacobson, G Stephens, T AF Labouriau, A Jacobson, G Stephens, T TI Analysis of aging of silica-filled composites by NMR and LC/MS. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, Div Chem, CSIC, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, CACT, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, ESA WMM, Los Alamos, NM 87545 USA. RI Stephens, Thomas/D-9512-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 151-NUCL BP U29 EP U29 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100140 ER PT J AU Landsberger, S Dodoo-Amoo, D Macdonald, J Castro, J AF Landsberger, S Dodoo-Amoo, D Macdonald, J Castro, J TI Development of non-leaded gloves for hand radiological protection. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Texas, Nucl Engn Teaching Lab, Austin, TX 78712 USA. Los Alamos Natl Lab, NMT 2, Los Alamos, NM USA. Los Alamos Natl Lab, ESH 1, Los Alamos, NM USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 10-NUCL BP U7 EP U7 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100007 ER PT J AU Larson, K Vaknin, D Villavicienco, O McGrath, DV Stephenson, N Tsukruk, VV AF Larson, K Vaknin, D Villavicienco, O McGrath, DV Stephenson, N Tsukruk, VV TI Synchrotron studies of amiphiphiles with crown polar heads at air-water interface. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA. Iowa State Univ, Ames Lab, Ames, IA 50011 USA. Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. Univ Arizona, Dept Chem, Tucson, AZ 85721 USA. RI McGrath, Dominic/A-7675-2012; Vaknin, David/B-3302-2009 OI Vaknin, David/0000-0002-0899-9248 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 138-PMSE BP U361 EP U361 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690102009 ER PT J AU Laskin, A Iedema, MJ Cowin, JP AF Laskin, A Iedema, MJ Cowin, JP TI Time-resolved field study of chloride depletion and nitrate enrichment in sea salt aerosol using single particle analysis. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 368-PHYS BP U233 EP U233 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101299 ER PT J AU LaVerne, J Tandon, L AF LaVerne, J Tandon, L TI Radiolysis of water adsorbed on oxides. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Notre Dame, Radiat Lab, Notre Dame, IN 46556 USA. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 1 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 356-PHYS BP U231 EP U231 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101287 ER PT J AU Levitskaia, TG Moyer, BA Bonnesen, PV Marchand, AP Krishnudu, K Chen, ZB Huang, ZL Kruger, HG McKim, AS AF Levitskaia, TG Moyer, BA Bonnesen, PV Marchand, AP Krishnudu, K Chen, ZB Huang, ZL Kruger, HG McKim, AS TI Novel approach to NaOH separation: Synergistic pseudo-hydroxide extraction by a fluorinated alcohol and cage-functionalized crown ethers. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA. Univ N Texas, Dept Chem, Denton, TX 76203 USA. RI Solominow, Sonia/A-4021-2008; Moyer, Bruce/L-2744-2016 OI Moyer, Bruce/0000-0001-7484-6277 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 14-IEC BP U509 EP U509 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002609 ER PT J AU Lichtner, PC Bish, DL Yabusaki, S Steefel, C Pruess, K AF Lichtner, PC Bish, DL Yabusaki, S Steefel, C Pruess, K TI Radionuclide migration under the SX-tank farm at the Hanford nuclear waste complex: Interaction of concentrated electrolyte solutions with sediments. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. Pacific NW Natl Lab, Richland, WA USA. Lawrence Livermore Natl Lab, Livermore, CA USA. Lawrence Berkeley Natl Lab, Berkeley, CA USA. RI Steefel, Carl/B-7758-2010 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 63-GEOC BP U494 EP U494 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002541 ER PT J AU Lin, YH Fryxell, GE Wu, H Engelhard, M AF Lin, YH Fryxell, GE Wu, H Engelhard, M TI Selective sorption of cesium using self-assembled monolayers on mesoporous supports. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Richland, WA 99352 USA. RI Engelhard, Mark/F-1317-2010; Lin, Yuehe/D-9762-2011 OI Lin, Yuehe/0000-0003-3791-7587 NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 105-NUCL BP U21 EP U21 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100095 ER PT J AU Lindberg, SE Brooks, S Lin, J Scott, K Goodsite, M Tilden, MS Landis, M Stevens, R AF Lindberg, SE Brooks, S Lin, J Scott, K Goodsite, M Tilden, MS Landis, M Stevens, R TI Dynamic oxidation of mercury in the arctic troposphere: Mercury speciation in air, deposition, and accumulation in snow from the Barrow, Alaska arctic mercury study. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. Natl Ocean & Atmospher Adm, Washington, DC USA. Lamar Univ, Beaumont, TX 77710 USA. Univ Manitoba, Winnipeg, MB R3T 2N2, Canada. Natl Environm Res Inst Denmark, Copenhagen, Denmark. US EPA, Washington, DC 20460 USA. Florida Dept Environm Protect, Tallahassee, FL USA. RI Landis, Matthew/P-5149-2014; Lin, Che-Jen/K-1808-2013 OI Landis, Matthew/0000-0002-8742-496X; Lin, Che-Jen/0000-0001-5990-3093 NR 0 TC 2 Z9 2 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 66-ENVR BP U429 EP U429 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002187 ER PT J AU Little, KM Morris, DE AF Little, KM Morris, DE TI Probing the structure of exchange sites in smectites by Eu(III) luminescence. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Furman Univ, Dept Chem, Greenville, SC 29613 USA. Los Alamos Natl Lab, Seaborg Inst Transactinium Sci, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 34-GEOC BP U489 EP U489 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002512 ER PT J AU Liu, SG Sui, GD Cormier, RA Leblanc, RM Gregg, BA AF Liu, SG Sui, GD Cormier, RA Leblanc, RM Gregg, BA TI Multi-phases, topography, and orientation of self-organized thin films of liquid crystalline perylene diimides. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Natl Renewable Energy Lab, Golden, CO 80401 USA. Univ Miami, Dept Chem, Coral Gables, FL 33124 USA. Metropolitan State Coll, Dept Chem, Denver, CO USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 107-COLL BP U329 EP U329 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690001694 ER PT J AU Liu, SG Sui, GD Cormier, RA Leblanc, RM Gregg, BA AF Liu, SG Sui, GD Cormier, RA Leblanc, RM Gregg, BA TI Multi-phases, topography, and orientation of self-organized thin films of liquid crystalline perylene diimides. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Natl Renewable Energy Lab, Golden, CO 80401 USA. Univ Miami, Dept Chem, Coral Gables, FL 33124 USA. Metropolitan State Coll Denver, Dept Chem, Denver, CO USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 290-CHED BP U237 EP U237 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690001177 ER PT J AU Liu, SG Echegoyen, L AF Liu, SG Echegoyen, L TI Redox active materials: Synthesis, self-assemblied monolayers, and sensor applications. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Miami Univ, Golden, CO 80401 USA. Natl Renewable Energy Lab, Golden, CO 80401 USA. Miami Univ, Dept Chem, Golden, CO 80401 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 553-ORGN BP U133 EP U133 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100751 ER PT J AU Loy, DA Lean, JT Baugher, CR AF Loy, DA Lean, JT Baugher, CR TI Sol-gel polymerization and thermal deprotection of protected 3-isocyanatopropyltriethoxysilanes. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Sandia Natl Labs, Albuquerque, NM 87185 USA. RI Loy, Douglas/D-4847-2009 OI Loy, Douglas/0000-0001-7635-9958 NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 299-COLL BP U377 EP U377 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690001886 ER PT J AU Loy, DA AF Loy, DA TI Sol-gel chemistry of polysilsesquioxanes. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Sandia Natl Labs, Albuquerque, NM 87185 USA. RI Loy, Douglas/D-4847-2009 OI Loy, Douglas/0000-0001-7635-9958 NR 0 TC 0 Z9 0 U1 2 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 15-MTLS BP U428 EP U428 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690102389 ER PT J AU Lukasheva, NV Niemela, S Neelov, IM Darinskii, AA Sundholm, F Cook, R AF Lukasheva, NV Niemela, S Neelov, IM Darinskii, AA Sundholm, F Cook, R TI Computer modeling of helical conformations and helix sense reversals in poly(alkyl isocyanates): New types of reversals. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Inst Macromol Cpds, Dept Phys, St Petersburg 199004, Russia. Univ Helsinki, Dept Chem, SF-00100 Helsinki, Finland. Univ Leeds, IRC Polymer Sci & Technol, Leeds LS2 9JT, W Yorkshire, England. Lawrence Livermore Natl Lab, Livermore, CA USA. RI Neelov, Igor/M-5338-2014 OI Neelov, Igor/0000-0002-5930-9892 NR 0 TC 2 Z9 2 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 115-PMSE BP U358 EP U358 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101986 ER PT J AU Lukianova, OA Chepanoske, CL Golinelli, MP David, SS AF Lukianova, OA Chepanoske, CL Golinelli, MP David, SS TI Participation of Arg143 of DNA repair enzyme MutY in damage recognition and removal. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Utah, Dept Chem, Salt Lake City, UT 84112 USA. Lawrence Livermore Natl Lab, Livermore, CA USA. Natl Canc Inst, Bethesda, MD USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 169-BIOL BP U143 EP U143 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690000683 ER PT J AU Lumetta, GJ AF Lumetta, GJ TI Problem with anions in the DOE complex. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Radiochem Proc Grp, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 8-IEC BP U508 EP U508 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002603 ER PT J AU Machesky, ML Wesolowski, DJ Ridley, MK Palmer, DA Anovitz, LM AF Machesky, ML Wesolowski, DJ Ridley, MK Palmer, DA Anovitz, LM TI Ion adsorption properties of metal oxide surfaces under hydrothermal conditions. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Illinois State Water Survey, Champaign, IL 61820 USA. Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA. Texas Tech Univ, Dept Geosci, Lubbock, TX 79409 USA. RI Anovitz, Lawrence/P-3144-2016 OI Anovitz, Lawrence/0000-0002-2609-8750 NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 18-GEOC BP U487 EP U487 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002496 ER PT J AU Magid, LJ Li, ZB Butler, PD AF Magid, LJ Li, ZB Butler, PD TI Using contrast variation to determine the role of counterion binding in micellar structure. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN USA. RI Butler, Paul/D-7368-2011 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 122-COLL BP U331 EP U331 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690001709 ER PT J AU Marchand, AP Hazlewood, A Power, TD Moyer, BA Levitskaia, TG Bonnesen, PV Bryan, JC AF Marchand, AP Hazlewood, A Power, TD Moyer, BA Levitskaia, TG Bonnesen, PV Bryan, JC TI Ion-pair extraction by using cage-functionalized hosts: Strategy for selective extraction of NaOH from wastes. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ N Texas, Dept Chem, Denton, TX 76203 USA. Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA. RI Solominow, Sonia/A-4021-2008; Moyer, Bruce/L-2744-2016 OI Moyer, Bruce/0000-0001-7484-6277 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 74-IEC BP U518 EP U518 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002669 ER PT J AU Marchetti, AA Brown, TA Hamilton, TF Knezovich, J McAninch, JE AF Marchetti, AA Brown, TA Hamilton, TF Knezovich, J McAninch, JE TI Determination of Pu by accelerator mass spectrometry. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Hlth & Ecol Assessment Div, Livermore, CA 94550 USA. Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94550 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 26-NUCL BP U9 EP U9 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100018 ER PT J AU Marley, NA Gaffney, JS AF Marley, NA Gaffney, JS TI Chemiluminescent detection of NO2/PANs and reactive olefins in air. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Div Environm Res, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 95-ENVR BP U434 EP U434 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002216 ER PT J AU Martello, DV Anderson, RR White, CM Casuccio, GS Schlaegle, SF AF Martello, DV Anderson, RR White, CM Casuccio, GS Schlaegle, SF TI Quantitative scanning electron microscopy methods to characterize ambient air PM 2.5. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. RJ Lee Grp Inc, Monroeville, PA USA. NR 0 TC 0 Z9 0 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 84-FUEL BP U472 EP U472 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002415 ER PT J AU Martin, ST Han, JH Hung, HM AF Martin, ST Han, JH Hung, HM TI Size effect of hematite and corundum inclusions as heterogeneous nuclei for aqueous ammonium sulfate particles. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Harvard Univ, Div Engn & Appl Sci, Cambridge, MA 02138 USA. Brookhaven Natl Lab, Upton, NY 11973 USA. RI Hung, Hui-Ming/E-3851-2016 OI Hung, Hui-Ming/0000-0002-6755-6359 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 166-PHYS BP U203 EP U203 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101097 ER PT J AU Matthews, MA Weidner, JW Thies, MC Bruce, DA Hamilton, EA Oji, L Pickett, J Laway, N AF Matthews, MA Weidner, JW Thies, MC Bruce, DA Hamilton, EA Oji, L Pickett, J Laway, N TI Extraction and oxidation of PCBS from mixed low-level solid waste at DOE sites. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ S Carolina, Dept Chem Engn, Columbia, SC 29208 USA. Clemson Univ, Dept Chem Engn, Clemson, SC 29634 USA. Savannah River Technol Ctr, Aiken, SC USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 159-NUCL BP U30 EP U30 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100148 ER PT J AU Mayes, MA Jardine, PM Fendorf, SE Mehlhorn, TL Bjornstad, BN AF Mayes, MA Jardine, PM Fendorf, SE Mehlhorn, TL Bjornstad, BN TI Hydrologic and geochemical processes controlling the transport of uranium and cesium through the Hanford vadose zone. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. Stanford Univ, Stanford, CA 94305 USA. Pacific NW Natl Lab, Appl Geol & Geochem Grp, Richland, WA USA. NR 0 TC 0 Z9 0 U1 1 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 65-GEOC BP U494 EP U495 PN 1 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002543 ER PT J AU McAlister, DR Chiarizia, R Dietz, ML Herlinger, AW AF McAlister, DR Chiarizia, R Dietz, ML Herlinger, AW TI Synergistic extraction of metal ions by mixtures of crown ethers and partially substituted diphosphonic acids. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Loyola Univ, Dept Chem, Chicago, IL 60626 USA. Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 28-IEC BP U511 EP U511 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002623 ER PT J AU McKinley, JP Bjornstad, BN AF McKinley, JP Bjornstad, BN TI Geologic structure and geochemistry of the vadose zone at the Hanford site, Washington. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Richland, WA 99352 USA. Pacific NW Natl Lab, Appl Geol & Geochem Grp, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 45-GEOC BP U491 EP U491 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002523 ER PT J AU McLain, SE Benmore, CJ Hinde, RJ Turner, JFC AF McLain, SE Benmore, CJ Hinde, RJ Turner, JFC TI Liquid, structure of fluorosulphonic acid determined by neutron diffraction with isotopic substition. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. Argonne Natl Lab, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 370-INOR BP U602 EP U602 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690003097 ER PT J AU Melnichenko, YB Wignall, GD Butler, PD AF Melnichenko, YB Wignall, GD Butler, PD TI Neutron scattering instrumentation upgrades at the Oak Ridge High Flux Isotope Reactor. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA. RI Butler, Paul/D-7368-2011 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 108-PMSE BP U356 EP U356 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101979 ER PT J AU Melnichenko, YB Wignall, GD Schwahn, D AF Melnichenko, YB Wignall, GD Schwahn, D TI Universal aspects of macromolecules in polymer blends, solutions, and supercritical mixtures, and implications for the validity of the random phase. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA. Forschungszentrum, Inst Festkorperforsch, Julich, Germany. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 72-PMSE BP U351 EP U351 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101943 ER PT J AU Michi, J Magnera, TF Smith, JR Pecka, J Reisinger, A Trujillo, M Miller, JR Kirby, JP AF Michi, J Magnera, TF Smith, JR Pecka, J Reisinger, A Trujillo, M Miller, JR Kirby, JP TI Toward single-molecule electronic devices. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA. Charles Univ, Dept Organ Chem, CR-11636 Prague 1, Czech Republic. Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 61-PHYS BP U188 EP U188 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100993 ER PT J AU Micic, OI Ahrenkiel, SP Nozik, AJ AF Micic, OI Ahrenkiel, SP Nozik, AJ TI Electronic coupling in solid films of extremely small InP quantum dots. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Natl Renewable Energy Lab, Golden, CO 80401 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 148-CHED BP U218 EP U218 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690001036 ER PT J AU Miller, JE Gonzales, MM Evans, L Saint, AG Zhang, C Whitwell, G Maiti, A King-Smith, D Kung, P AF Miller, JE Gonzales, MM Evans, L Saint, AG Zhang, C Whitwell, G Maiti, A King-Smith, D Kung, P TI Oxidative dehydrogenation of ethane over iron phosphate catalysts. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Sandia Natl Labs, Dept Catalyt & Porous Mat, Albuquerque, NM 87185 USA. Akzo Nobel, Arnhem, Netherlands. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 40-COLL BP U318 EP U318 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690001628 ER PT J AU Milliken, J Blair, L AF Milliken, J Blair, L TI Fuel processing challenges and opportunities: Recent advances in the DOE Transportation Fuel Cell Program. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE, Off Adv Automot Technol, Washington, DC 20585 USA. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 68-FUEL BP U469 EP U470 PN 1 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002399 ER PT J AU Mills, DM AF Mills, DM TI Polymer science research at the Advanced Photon Source. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 110-PMSE BP U357 EP U357 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101981 ER PT J AU Mills, J Walker, D Fondeur, FF Dukes, VH Croy, B AF Mills, J Walker, D Fondeur, FF Dukes, VH Croy, B TI Examination of pre-production samples of UOPIONSIV (R) IE-910 and IE-911. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Westinghouse Savannah River Co, Savannah River Technol Ctr, Aiken, SC 29808 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 8-TECH BP U282 EP U283 PN 1 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690001457 ER PT J AU Minke, MR Loy, DA Shea, KJ AF Minke, MR Loy, DA Shea, KJ TI Surface area and porosity engineering of alkylene-bridged methoxysilanes. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Sandia Natl Labs, Albuquerque, NM 87185 USA. Univ Calif Irvine, Dept Chem, Irvine, CA 92717 USA. RI Loy, Douglas/D-4847-2009 OI Loy, Douglas/0000-0001-7635-9958 NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 354-POLY BP U309 EP U309 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101684 ER PT J AU Mitchell, J AF Mitchell, J TI Evert-by-event fluctuations in the mean transverse momentum and energy of particles produced in Au plus Au collisions in the PHENIX Experiment at RHIC. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Brookhaven Natl Lab, Dept Phys, PHENIX Collaborat, Upton, NY 11973 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 195-NUCL BP U36 EP U36 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100184 ER PT J AU Morales, LA Lawson, A Kennison, J AF Morales, LA Lawson, A Kennison, J TI Analysis of strain anisotropy in delta-stabilized Pu-Ga alloys. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 109-NUCL BP U22 EP U22 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100099 ER PT J AU Morton, SA Keffer, DJ Counce, RM Depaoli, D Hu, MZC AF Morton, SA Keffer, DJ Counce, RM Depaoli, D Hu, MZC TI Thermodynamic model for surfactant enhanced removal of organics from metal surfaces. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Tennessee, Dept Chem Engn, Knoxville, TN 37923 USA. Oak Ridge Natl Lab, Div Chem Technol, Oak Ridge, TN USA. RI Keffer, David/C-5133-2014 OI Keffer, David/0000-0002-6246-0286 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 160-NUCL BP U30 EP U30 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100149 ER PT J AU Moses, EI Atherton, LJ Bonanno, G Brandt, J Brereton, S Campbell, SJ Deis, G Dun, C Hackel, L Hackel, R Hunt, J Johnson, S Larson, D Lee, D MacGowan, B Mara, G Marshall, C May, S Merritt, B Miller, GH Patterson, R Rardin, DC Roberts, V Sawicki, R Spaeth, M Tietbohl, G Van Arsdall, P Van Wonterghem, B Warner, B Weber, P Wuest, C Yatabe, J AF Moses, EI Atherton, LJ Bonanno, G Brandt, J Brereton, S Campbell, SJ Deis, G Dun, C Hackel, L Hackel, R Hunt, J Johnson, S Larson, D Lee, D MacGowan, B Mara, G Marshall, C May, S Merritt, B Miller, GH Patterson, R Rardin, DC Roberts, V Sawicki, R Spaeth, M Tietbohl, G Van Arsdall, P Van Wonterghem, B Warner, B Weber, P Wuest, C Yatabe, J TI National Ignition Facility: Status and plans for laser fusion and high-energy-density experimental studies. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Natl Ignit Facil, Livermore, CA 94550 USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 37-NUCL BP U10 EP U10 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100029 ER PT J AU Moyer, BA Bonnesen, PV Bryan, JC Haverlock, TJ Kavallieratos, K Levitskaia, TG Sachleben, RA Vercouter, T AF Moyer, BA Bonnesen, PV Bryan, JC Haverlock, TJ Kavallieratos, K Levitskaia, TG Sachleben, RA Vercouter, T TI The Hofmeister order and the concept of bias in anion separations. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA. Florida Int Univ, Dept Chem, Miami, FL 33199 USA. RI Solominow, Sonia/A-4021-2008; Moyer, Bruce/L-2744-2016 OI Moyer, Bruce/0000-0001-7484-6277 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 5-IEC BP U507 EP U508 PN 1 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002600 ER PT J AU Moyer, BA Bonnesen, PV Brown, GM Bryan, JC Delmau, LH Haverlock, TJ Levitskaia, TG Sloop, FV AF Moyer, BA Bonnesen, PV Brown, GM Bryan, JC Delmau, LH Haverlock, TJ Levitskaia, TG Sloop, FV TI Liquid-liquid extraction approaches to the treatment of alkaline high-level waste. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA. RI Solominow, Sonia/A-4021-2008; Sloop, Jr., Frederick/J-2301-2016; Moyer, Bruce/L-2744-2016 OI Sloop, Jr., Frederick/0000-0001-6473-9507; Moyer, Bruce/0000-0001-7484-6277 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 100-NUCL BP U21 EP U21 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100091 ER PT J AU Myers, DJ Krebs, JF Krause, TR Carter, JD AF Myers, DJ Krebs, JF Krause, TR Carter, JD TI Water-gas shift catalysts with improved durability for automotive fuel cell applications. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Div Chem Technol, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 132-FUEL BP U480 EP U480 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002463 ER PT J AU Nash, KL AF Nash, KL TI Nuclear power and actinide recycle: A 21st century perspective on costs and benefits. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 16-IEC BP U509 EP U509 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002611 ER PT J AU Nash, KL Guelis, AV Jensen, MP Sullivan, JC Bond, AH Garnov, AY Rao, LF AF Nash, KL Guelis, AV Jensen, MP Sullivan, JC Bond, AH Garnov, AY Rao, LF TI Insights into probable actinide behavior in alkaline sludge wash liquors. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. PG Res Fdn, Darien, IL USA. Lawrence Berkeley Natl Lab, Berkeley, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 137-NUCL BP U27 EP U27 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100126 ER PT J AU Nenoff, TM Nyman, M Tripathi, A Parise, JB Ewing, RC AF Nenoff, TM Nyman, M Tripathi, A Parise, JB Ewing, RC TI Synthesis and characterization of novel microporous and condensed metal niobate and silicotitanate materials. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Sandia Natl Labs, Albuquerque, NM 87185 USA. SUNY Stony Brook, Stony Brook, NY 11794 USA. Univ Michigan, Dept Nucl Engn & Radiol Sci, Ann Arbor, MI 48109 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 205-NUCL BP U37 EP U37 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100194 ER PT J AU Neu, MP Runde, WH Smith, DM Ginder-Vogel, MA Conradson, SD Lin, M Reilly, SD Van Pelt, CE Soderholm, L Haire, R AF Neu, MP Runde, WH Smith, DM Ginder-Vogel, MA Conradson, SD Lin, M Reilly, SD Van Pelt, CE Soderholm, L Haire, R TI Plutonium speciation and mobility in environmental systems. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, Los Alamos, NM USA. Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. Argonne Natl Lab, Div Chem Sci, Argonne, IL 60439 USA. Oak Ridge Natl Lab, Oak Ridge, TN USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 99-NUCL BP U20 EP U20 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100090 ER PT J AU Nichols, AL Anderson, A Neely, JR Sharp, RW Wallin, BK AF Nichols, AL Anderson, A Neely, JR Sharp, RW Wallin, BK TI Modeling energetic materials response to hazardous thermal environments for stockpile stewardship. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 55-NUCL BP U13 EP U13 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100047 ER PT J AU Nizkorodov, S Ziemkiewicz, M Knight, AEW Myers, TL Votava, O AF Nizkorodov, S Ziemkiewicz, M Knight, AEW Myers, TL Votava, O TI Vibrationally-mediated dissociation of H2O molecules inside (H2O)(2) and Ar-H2O complexes: Spectroscopy, dynamics, and alignment effects. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 CALTECH, Dept Chem, Pasadena, CA 91125 USA. Univ Colorado, Boulder, CO 80309 USA. Pacific NW Natl Lab, Richland, WA USA. J Heyrovsky Inst Phys Chem & Electrochem, Prague, Czech Republic. Univ Colorado, Joint Inst Lab Astrophys, Boulder, CO 80309 USA. Univ Colorado, Natl Inst Stand & Technol, Boulder, CO 80309 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 160-PHYS BP U202 EP U202 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101091 ER PT J AU O'Loughlin, EJ Kelly, SD Kemner, KM Burris, DR AF O'Loughlin, EJ Kelly, SD Kemner, KM Burris, DR TI XAFS study of the catalytic effects of Ag, Au, and Cu on the reductive dechlorination of carbon tetrachloride. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Div Environm Res, Argonne, IL 60439 USA. USAF, Res Lab, AFRL, Wright Patterson AFB, OH USA. USAF, Res Lab, MLQR, Wright Patterson AFB, OH USA. RI ID, MRCAT/G-7586-2011 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 3-ENVR BP U419 EP U419 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002124 ER PT J AU Ognibene, TJ Bench, GS Brown, TA Peaslee, GF Southon, JR Vogel, JS AF Ognibene, TJ Bench, GS Brown, TA Peaslee, GF Southon, JR Vogel, JS TI LLNL AMS spectrometer for biochemical 14C measurements. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. Hope Coll, Dept Chem, Holland, MI 49423 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 23-NUCL BP U8 EP U8 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100015 ER PT J AU Ogunsola, OI Hartstein, AM AF Ogunsola, OI Hartstein, AM TI Ultra clean transportation fuels program at the Department of Energy. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE, Off Nat Gas & Petr Technol, Washington, DC 20585 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 23-FUEL BP U462 EP U462 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002354 ER PT J AU Ohnishi, H AF Ohnishi, H TI Particle ratio in PHENIX at RHIC. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 202-NUCL BP U37 EP U37 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100191 ER PT J AU Olanrewaju, J Scheetz, BE Grutzeck, MW Siemer, DD AF Olanrewaju, J Scheetz, BE Grutzeck, MW Siemer, DD TI Hydration kinetics of hydroceramic wasteform as a host for the INEEL calcined high-level radioactive waste. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA. Idaho Natl Engn & Environm Lab, Idaho Falls, ID USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 112-NUCL BP U22 EP U22 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100101 ER PT J AU Olanrewaju, J Scheetz, B Grutzeck, MW Siemer, DD AF Olanrewaju, J Scheetz, B Grutzeck, MW Siemer, DD TI Hydration kinetics of hydroceramic wasteform as a host for the INEEL calcined high-level radioactive waste. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Penn State Univ, Mat Res Inst, Mat Res Lab, University Pk, PA 16802 USA. Idaho Natl Engn & Environm Lab, Idaho Falls, ID USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 81-NUCL BP U18 EP U18 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100073 ER PT J AU Onishi, Y Wells, BE Ten, AA Hier, CA Yuen, DA AF Onishi, Y Wells, BE Ten, AA Hier, CA Yuen, DA TI Reactive transport modeling of radioactive waste mixing. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Environm Technol Div, Richland, WA 99352 USA. Univ Minnesota, Minnesota Supercomp Inst, Minneapolis, MN USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 145-NUCL BP U28 EP U28 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100134 ER PT J AU Orler, EB Wrobleski, DA Campbell, MS AF Orler, EB Wrobleski, DA Campbell, MS TI Structure/property behavior of segmented poly(ester urethanes) containing different hard segment content. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, Polymers & Coatings Grp, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, Dynam Expt Div DX 2, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 440-POLY BP U322 EP U322 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101770 ER PT J AU Owens, CV Britt, P Buchanan, AC AF Owens, CV Britt, P Buchanan, AC TI Investigation into the formation of polycyclic aromatic hydrocarbons from the pyrolysis of stigmasterol. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 82-ANYL BP U91 EP U91 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690000384 ER PT J AU Pangault, LN Rundberg, RS Wilhelmy, JB AF Pangault, LN Rundberg, RS Wilhelmy, JB TI Feasibility studies for the measurement of the fission cross section of the 26 min U-235m isomer. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, C INC, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 135-NUCL BP U26 EP U26 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100124 ER PT J AU Papantonakis, MR Haglund, RF Hess, WP Ermer, DR AF Papantonakis, MR Haglund, RF Hess, WP Ermer, DR TI Molecular identification of mixed tank-waste compounds by mass spectrometry. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA. Pacific NW Natl Lab, Richland, WA USA. Mississippi State Univ, Dept Phys & Astron, Mississippi State, MS USA. RI Papantonakis, Michael/G-3888-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 184-NUCL BP U34 EP U34 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100173 ER PT J AU Peebles, DE Dugger, MT McNamara, WF Ohlhausen, JA Sorroche, EH AF Peebles, DE Dugger, MT McNamara, WF Ohlhausen, JA Sorroche, EH TI Aging evaluations of lubricants used in electromechanical devices. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Sandia Natl Labs, Mat Characterizat, Albuquerque, NM 87185 USA. Sandia Natl Labs, Tribol Mech & Melting, Albuquerque, NM 87185 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 152-NUCL BP U29 EP U29 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100141 ER PT J AU Perlinger, JA Doskey, PV Morrow, PS Tobias, DE Perram, DL AF Perlinger, JA Doskey, PV Morrow, PS Tobias, DE Perram, DL TI Micrometeorological measurement of exchange rates of PBTs. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Michigan Technol Univ, Dept Civil & Environm Engn, Houghton, MI 49931 USA. Argonne Natl Lab, Div Environm Res, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 120-ENVR BP U438 EP U438 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002241 ER PT J AU Perlinger, JA Doskey, PV Tobias, DE Morrow, PS Perram, DL AF Perlinger, JA Doskey, PV Tobias, DE Morrow, PS Perram, DL TI Micrometeorological measurements of air-surface exchange rates of PBTs in the Great Lakes region. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Michigan Technol Univ, Dept Civil & Environm Engn, Houghton, MI 49931 USA. Argonne Natl Lab, Div Environm Res, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 76-ENVR BP U431 EP U431 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002197 ER PT J AU Perry, DL Lockard, J Dybowski, C Glatfelter, A Bai, S VanBramer, SA Neue, G AF Perry, DL Lockard, J Dybowski, C Glatfelter, A Bai, S VanBramer, SA Neue, G TI Solid state lead-207 NMR studies of mixed lead flouride halide system. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. Univ Delaware, Dept Chem & Biochem, Newark, DE 19716 USA. Widener Univ, Dept Chem, Chester, PA USA. Univ Dortmund, Dept Phys Chem, D-44221 Dortmund, Germany. NR 0 TC 0 Z9 0 U1 1 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 64-INOR BP U555 EP U555 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002792 ER PT J AU Perry, DL Spiller, E Wilkinson, TJ Derenzo, SE Berdahl, P Weber, MJ AF Perry, DL Spiller, E Wilkinson, TJ Derenzo, SE Berdahl, P Weber, MJ TI Facile wet synthesis of litharge: The tetragonal form of PbO. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 1 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 63-INOR BP U555 EP U555 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002791 ER PT J AU Peterson, OG Hampel, FG Clark, DL AF Peterson, OG Hampel, FG Clark, DL TI In situ diagnostics of sealed nuclear systems. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, Nucl Mat Technol Div, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 156-NUCL BP U30 EP U30 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100145 ER PT J AU Plass, RA Bartelt, NC Kellogg, GL AF Plass, RA Bartelt, NC Kellogg, GL TI Self assembly in the Pb on Cu(111) surface system. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Sandia Natl Labs, Surface & Interface Sci Dept, Albuquerque, NM 87185 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 108-NUCL BP U22 EP U22 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100098 ER PT J AU Plasynski, S Goldberg, PM Chen, ZY AF Plasynski, S Goldberg, PM Chen, ZY TI DOE's biomass cofiring program: Overview. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE, Natl Energy Technol Lab, NETL, Dept Energy, Pittsburgh, PA 15236 USA. Sci Applicat Int Corp, Mclean, VA 22102 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 134-FUEL BP U480 EP U480 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002465 ER PT J AU Pratt, ST Bacon, JA Raptis, CA AF Pratt, ST Bacon, JA Raptis, CA TI Mode-dependent vibrational autoionization in ammonia. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 65-PHYS BP U189 EP U189 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100997 ER PT J AU Qafoku, NP Ainsworth, CC Szecsody, JE Qafoku, OS AF Qafoku, NP Ainsworth, CC Szecsody, JE Qafoku, OS TI Attenuation of Cr(VI) by Hanford sediments under hyperalkaline and saline conditions. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Interfacial Geochem Grp, Richland, WA 99352 USA. Pacific NW Natl Lab, Field Hydrol & Chem Grp, Richland, WA 99352 USA. Pacific NW Natl Lab, William R Willey Lab, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 1 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 50-GEOC BP U492 EP U492 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002528 ER PT J AU Rajh, T Makarova, OV Thurnauer, MC Kemme, PA Cropek, D AF Rajh, T Makarova, OV Thurnauer, MC Kemme, PA Cropek, D TI Surface modification of TiO2 nanoparticles for selective adsorption of nitrobenzene. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. USA CERL, CNE, Washington, DC USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 59-ENVR BP U428 EP U428 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002180 ER PT J AU Rajh, T Chen, LX Liu, T Tiede, DM Thurnauer, MC AF Rajh, T Chen, LX Liu, T Tiede, DM Thurnauer, MC TI Surface restructuring of nanoparticles: An efficient route for biomolecule-nanoparticle crosstalk. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 1 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 147-CHED BP U217 EP U217 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690001035 ER PT J AU Ramos, C Pratt, ST Zwier, TS AF Ramos, C Pratt, ST Zwier, TS TI Photoelectron spectra of diacetylene. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA. Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 243-PHYS BP U214 EP U214 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101174 ER PT J AU Ramsey, JM AF Ramsey, JM TI High efficiency separations on microfabricated fluidic structures. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 153-ANYL BP U103 EP U103 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690000455 ER PT J AU Rodriguez, JH AF Rodriguez, JH TI Ground and excited state electronic structure of (anti)ferromagnetic models for diiron-oxo proteins. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Berkeley Natl Lab, Div Phys Biosci, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 553-INOR BP U629 EP U629 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690003280 ER PT J AU Rodriguez, JH AF Rodriguez, JH TI Advances in Mossbauer spectroscopy of non-heme diiron-oxo proteins. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Phys Biosci, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 551-INOR BP U629 EP U629 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690003278 ER PT J AU Rodriguez, JH Cramer, SP AF Rodriguez, JH Cramer, SP TI Density functional theory of a Ni(I)CO complex. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Phys Biosci, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 480-INOR BP U618 EP U618 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690003207 ER PT J AU Rundberg, RS Ahmad, I Becker, JA Banar, JC Gemmell, DS Kraemer, A Mashayekhi, A McNabb, DP Miller, GG Moore, EF Pangault, LN Schiffer, JP Shastri, SD Wang, TF Wilhelmy, JB AF Rundberg, RS Ahmad, I Becker, JA Banar, JC Gemmell, DS Kraemer, A Mashayekhi, A McNabb, DP Miller, GG Moore, EF Pangault, LN Schiffer, JP Shastri, SD Wang, TF Wilhelmy, JB TI Limits on the x-ray induced decay of the 31-yr isomer of Hf-178. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, C INC, Los Alamos, NM 87545 USA. Lawrence Livermore Natl Lab, Livermore, CA USA. Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. Lawrence Livermore Natl Lab, Div Analyt & Nucl Chem, Livermore, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 178-NUCL BP U33 EP U33 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100167 ER PT J AU Russick, EM Aubert, JH McElhanon, JR Sawyer, PS AF Russick, EM Aubert, JH McElhanon, JR Sawyer, PS TI Removable foam encapsulants for electronic component life extension and reliability. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Sandia Natl Labs, Organ Mat Dept, Albuquerque, NM 87185 USA. Sandia Natl Labs, Dept Chem Mat, Albuquerque, NM 87185 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 150-NUCL BP U29 EP U29 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100139 ER PT J AU Ruth, LA AF Ruth, LA TI Vision 21: Ultra-clean energy from fossil fuels in the 21st century. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 33-CHED BP U202 EP U202 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690000921 ER PT J AU Sachleben, RA Bond, AH AF Sachleben, RA Bond, AH TI Join the separation science and technology subdivision of the ACS I&EC division!. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA. PG Res Fdn, Darien, IL 60561 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 15-IEC BP U509 EP U509 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002610 ER PT J AU Sauer, NN Duran, BL Ehler, DS Taylor, TP AF Sauer, NN Duran, BL Ehler, DS Taylor, TP TI Separation of uranium and lead from contained test shot debris. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 110-NUCL BP U22 EP U22 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100100 ER PT J AU Savard, G Scheidenberger, C Dendooven, P Van Duppen, P Elisseev, S Faestermann, T Geissel, H Hausmann, M Hellstroem, M Jiang, CL Kaza, E Kindler, B Litvinov, Y Lommel, B Maier, M Morrissey, D Muenzenberg, C Nolen, JA Ohtsubo, T Sherrill, B Shishkin, V Sprouse, GD Suemmerer, K Tanihata, I Wada, M Weick, H Weidenmueller, M Zabransky, BJ AF Savard, G Scheidenberger, C Dendooven, P Van Duppen, P Elisseev, S Faestermann, T Geissel, H Hausmann, M Hellstroem, M Jiang, CL Kaza, E Kindler, B Litvinov, Y Lommel, B Maier, M Morrissey, D Muenzenberg, C Nolen, JA Ohtsubo, T Sherrill, B Shishkin, V Sprouse, GD Suemmerer, K Tanihata, I Wada, M Weick, H Weidenmueller, M Zabransky, BJ TI Development of a gas-catcher system to stop relativistic ions at GSI. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. GSI, Darmstadt, Germany. Univ Jyvaskyla, Dept Phys, Jyvaskyla, Finland. Katholieke Univ Leuven, Inst Kern Stralingsfys, B-3001 Louvain, Belgium. Univ Giessen, Giessen, Germany. Tech Univ Munich, D-8000 Munich, Germany. Michigan State Univ, E Lansing, MI 48824 USA. SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. RIKEN, Wako, Saitama 35101, Japan. RI Sherrill, Bradley/B-3378-2011 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 67-NUCL BP U15 EP U15 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100059 ER PT J AU Savard, G Boudreau, C Buchinger, F Caggiano, J Clark, J Crawford, JE Gulick, S Heinz, A Lee, JKP Moore, RB Seweryniak, D Sharma, KS Vaz, J Wang, J Sprouse, GD AF Savard, G Boudreau, C Buchinger, F Caggiano, J Clark, J Crawford, JE Gulick, S Heinz, A Lee, JKP Moore, RB Seweryniak, D Sharma, KS Vaz, J Wang, J Sprouse, GD TI Status of the ANL ion guide and gas cooler system. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. McGill Univ, Dept Phys, Montreal, PQ H3A 2T5, Canada. Univ Manitoba, Dept Phys, Winnipeg, MB R3T 2N2, Canada. SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 31-NUCL BP U9 EP U9 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100023 ER PT J AU Schenter, GK Kathmann, SM Garrett, BC AF Schenter, GK Kathmann, SM Garrett, BC TI Dynamical tests of the nucleation kinetics of water. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. RI Garrett, Bruce/F-8516-2011; Schenter, Gregory/I-7655-2014 OI Schenter, Gregory/0000-0001-5444-5484 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 28-PHYS BP U183 EP U183 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100960 ER PT J AU Schilling, O AF Schilling, O TI Compressible turbulent mixing simulation and modeling at LLNL. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Hydrodynam & Turbulence Theory & Simulat Grp, Livermore, CA 94550 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 34-NUCL BP U10 EP U10 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100026 ER PT J AU Schmidt, JAR Arnold, J AF Schmidt, JAR Arnold, J TI Reactivity of alkyl and alkylidene tantalum-lithium complexes supported by an anionic triazacyclononane ligand. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 313-INOR BP U593 EP U593 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690003040 ER PT J AU Schwegler, ER Galli, G Gygi, F AF Schwegler, ER Galli, G Gygi, F TI Water under pressure. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RI Schwegler, Eric/A-2436-2016 OI Schwegler, Eric/0000-0003-3635-7418 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 51-NUCL BP U13 EP U13 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100043 ER PT J AU Segal, SR Anderson, KB Carrado, KA Marshall, CL AF Segal, SR Anderson, KB Carrado, KA Marshall, CL TI Low temperature steam reforming of methanol over layered double hydroxide catalysts. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. Argonne Natl Lab, Div Chem Technol, Argonne, IL 60439 USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 109-FUEL BP U476 EP U476 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002440 ER PT J AU Sepaniak, MJ Lavrik, NV Tipple, CA Datskos, P AF Sepaniak, MJ Lavrik, NV Tipple, CA Datskos, P TI Hybrid nanostructured microcantilever sensors: Combining chemi-mechanical responses with surface enhanced Raman spectroscopy. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. Oak Ridge Natl Lab, Div Engn Technol, Oak Ridge, TN USA. RI Lavrik, Nickolay/B-5268-2011 OI Lavrik, Nickolay/0000-0002-9543-5634 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 188-NUCL BP U35 EP U35 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100177 ER PT J AU Serne, RJ Lindenmeier, CW Schaef, HT AF Serne, RJ Lindenmeier, CW Schaef, HT TI Geochemical conditions in the vadose zone at leaking single-shell tanks in the B-BX-BY waste management area in Hanford's 200 E area. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Appl Geol & Geochem Grp, Richland, WA 99352 USA. NR 0 TC 2 Z9 2 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 48-GEOC BP U492 EP U492 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002526 ER PT J AU Sessler, JL Weghorn, SJ Gebauer, A Seidel, D Gorden, AEV Hannah, S Hemmi, GW Mody, TD Magda, DJ Keogh, DW AF Sessler, JL Weghorn, SJ Gebauer, A Seidel, D Gorden, AEV Hannah, S Hemmi, GW Mody, TD Magda, DJ Keogh, DW TI Expanded porphyrins: Novel multidentate ligands. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Texas, Dept Chem & Biochem, Austin, TX 78712 USA. Pharmacycl Inc, Sunnyvale, CA USA. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RI Gorden, Anne/D-2477-2011 OI Gorden, Anne/0000-0001-6623-9880 NR 0 TC 0 Z9 0 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 188-INOR BP U575 EP U575 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002916 ER PT J AU Shafir, A Fiedler, D Arnold, J AF Shafir, A Fiedler, D Arnold, J TI Chemistry of new redox active ligands based on diaminoferrocene. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 223-INOR BP U580 EP U580 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002951 ER PT J AU Shaughnessy, DA Nitsche, H Serne, RJ Shuh, DK Waychunas, GA Booth, CH Cantrell, KJ AF Shaughnessy, DA Nitsche, H Serne, RJ Shuh, DK Waychunas, GA Booth, CH Cantrell, KJ TI Investigation of molecular interfacial reactions between plutonium and manganese oxide hydroxide mineral surfaces. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Glenn T Seaborg Ctr, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Chem, Berkeley, CA 94720 USA. Pacific NW Natl Lab, Richland, WA USA. Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA. RI Booth, Corwin/A-7877-2008 NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 114-NUCL BP U23 EP U23 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100103 ER PT J AU Shea, K Loy, D AF Shea, K Loy, D TI Functional bridged polysilsesquioxanes. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA. Sandia Natl Labs, Dept Catalysts & Mat, Livermore, CA 94550 USA. RI Loy, Douglas/D-4847-2009 OI Loy, Douglas/0000-0001-7635-9958 NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 14-MTLS BP U428 EP U428 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690102388 ER PT J AU Siegmann, K Siegmann, HC AF Siegmann, K Siegmann, HC TI Photoelectric charging of small aerosol particles: Theory and applications. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ETH Zurich, ETH Hoenggerberg, CH-8093 Zurich, Switzerland. Stanford Univ, Stanford Synchrotron Radiat Lab, Stanford, CA 94305 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 392-PHYS BP U236 EP U237 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101323 ER PT J AU Silver, R AF Silver, R TI Fourier analysis by maximum entropy. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 68-PHYS BP U189 EP U189 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101000 ER PT J AU Singhal, SC AF Singhal, SC TI Present status of solid oxide fuel cells. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 65-FUEL BP U469 EP U469 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002396 ER PT J AU Singhal, SC AF Singhal, SC TI Solid oxide fuel cells. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 21-FUEL BP U462 EP U462 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002352 ER PT J AU Smith, DL Campbell, IH AF Smith, DL Campbell, IH TI Electron injection in organic electronic devices. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 83-COLL BP U325 EP U325 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690001671 ER PT J AU Smith, DM Ginder-Vogel, MA Skanthakumar, S Soderholm, L Neu, MP AF Smith, DM Ginder-Vogel, MA Skanthakumar, S Soderholm, L Neu, MP TI Interactions of plutonium with manganese dioxide and manganese-containing sediments. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, Nucl Mat & Technol Div, Los Alamos, NM 87544 USA. Los Alamos Natl Lab, Div Chem, C SIC, Los Alamos, NM 87544 USA. Argonne Natl Lab, Div Chem Sci, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 115-NUCL BP U23 EP U23 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100104 ER PT J AU Snellings, R AF Snellings, R TI Elliptic flow measurements at RHIC. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 194-NUCL BP U36 EP U36 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100183 ER PT J AU Soderholm, L Antonio, MR Williams, CW AF Soderholm, L Antonio, MR Williams, CW TI Metal-ion speciation using XANES spectroelectrochemistry. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 37-GEOC BP U490 EP U490 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002515 ER PT J AU Srivastava, RD Winslow, JC Noceti, RP McIlvried, HG AF Srivastava, RD Winslow, JC Noceti, RP McIlvried, HG TI Department of Energy sponsored research to advance knowledge of C-1 chemistry. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 SAIC NETL, Pittsburgh, PA 15236 USA. US DOE, Washington, DC USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 59-FUEL BP U468 EP U468 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002390 ER PT J AU Stancik, CM Pople, JA Hedrick, JL Gast, AP AF Stancik, CM Pople, JA Hedrick, JL Gast, AP TI Novel dendrimer-like star copolymer architectures investigated with scattering techniques. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Stanford Univ, Dept Chem Engn, Stanford, CA 94305 USA. Stanford Synchrotron Radiat Lab, Stanford, CA 94309 USA. IBM Res Div, Almaden Res Ctr, San Jose, CA USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 76-PMSE BP U351 EP U352 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101947 ER PT J AU Stegemiller, ML Heineman, WR Seliskar, CJ Ridgway, TH Bryan, SA Hubler, TL AF Stegemiller, ML Heineman, WR Seliskar, CJ Ridgway, TH Bryan, SA Hubler, TL TI Development of a spectroelectrochemical sensor for pertechnetate. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Cincinnati, Dept Chem, Cincinnati, OH 45221 USA. Pacific NW Natl Lab, Radiochem Proc Lab, Richland, WA USA. Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 79-NUCL BP U17 EP U17 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100071 ER PT J AU Steinberg, P AF Steinberg, P TI Energy and centrality dependence of global observables in heavy ion collisions. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 177-NUCL BP U33 EP U33 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100166 ER PT J AU Stewart, FF Orme, CJ Harrup, MK Lash, RP Weinkauf, DH McCoy, JD AF Stewart, FF Orme, CJ Harrup, MK Lash, RP Weinkauf, DH McCoy, JD TI Membrane separations using functionalized polyphosphazene materials. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Idaho Natl Engn & EnvironmLab, Idaho Falls, ID 83415 USA. New Mexico Inst Min & Technol, Dept Petr & Chem Engn, Socorro, NM USA. New Mexico Inst Min & Technol, Dept Mat & Met Engn, Socorro, NM 87801 USA. RI McCoy, John/B-3846-2010 OI McCoy, John/0000-0001-5404-1404 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 343-PMSE BP U393 EP U393 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690102214 ER PT J AU Stoyer, MA Hudson, B Moody, KJ Sangster, C AF Stoyer, MA Hudson, B Moody, KJ Sangster, C TI Radiochemical diagnostic development for the National Ignition Facility. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Analyt & Nucl Chem Div, Livermore, CA 94550 USA. Lawrence Livermore Natl Lab, Div Phys N, Livermore, CA 94550 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 58-NUCL BP U14 EP U14 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100050 ER PT J AU Sturchio, NC Rihs, S Cheng, LW Fenter, P Orlandini, KA AF Sturchio, NC Rihs, S Cheng, LW Fenter, P Orlandini, KA TI Uranyl adsorption on calcite observed with X-ray standing waves. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Illinois, Chicago, IL 60607 USA. Univ Strasbourg 1, Ctr Geochim Surface, F-67070 Strasbourg, France. Argonne Natl Lab, Div Environm Res, Argonne, IL 60439 USA. RI Cheng, Likwan/C-1436-2013 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 23-GEOC BP U487 EP U488 PN 1 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002501 ER PT J AU Su, YL Li, LY Young, J Balmer, ML AF Su, YL Li, LY Young, J Balmer, ML TI Chemical and thermal stability studies of Cs-loaded crystalline silicotitanate. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Mat Resources & Environm Mol Sci Lab, Richland, WA 99352 USA. Caterpillar Inc, Ctr Tech, Peoria, IL 61629 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 207-NUCL BP U37 EP U38 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100196 ER PT J AU Sui, GD Liu, SG Orbulescu, J Gregg, BA Leblanc, RM AF Sui, GD Liu, SG Orbulescu, J Gregg, BA Leblanc, RM TI UV-Vis and fluorescence studies of liquid crystalline perylene diimides in Langmuir and Langmuir-Blodgett films. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Miami, Dept Chem, Coral Gables, FL 33124 USA. Natl Renewable Energy Lab, Golden, CO 80401 USA. RI Orbulescu, Jhony/D-7829-2012 OI Orbulescu, Jhony/0000-0001-9408-9787 NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 89-COLL BP U326 EP U326 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690001677 ER PT J AU Sukumaran, S Mao, GM Beaucage, G Thiyagarajan, P Saboungi, ML AF Sukumaran, S Mao, GM Beaucage, G Thiyagarajan, P Saboungi, ML TI PEG-PPO-PEO block copolymer micelles in aqueous electrolyte solutions: Effect of anions and temperature on the micelle structure and interaction. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Cincinnati, Dept Mat Sci & Engn, Cincinnati, OH 45221 USA. Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. Argonne Natl Lab, Intense Pulsed Neutron Source, Argonne, IL 60439 USA. RI Saboungi, Marie-Louise/C-5920-2013 OI Saboungi, Marie-Louise/0000-0002-0607-4815 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 134-PMSE BP U360 EP U360 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690102005 ER PT J AU Sullivan, EJ Reimus, P Ding, M AF Sullivan, EJ Reimus, P Ding, M TI Effects of mineralogy, grain size, and solution composition on lithium sorption to saturated alluvium south of Yucca Mountain, Nevada. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 145-ENVR BP U442 EP U442 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002266 ER PT J AU Sykora, M Trammell, S Yang, J Fleming, C Papanikolas, J Meyer, TJ AF Sykora, M Trammell, S Yang, J Fleming, C Papanikolas, J Meyer, TJ TI Long-range energy and electron transfer in oligomers, on surfaces, and in films. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. Univ N Carolina, Chapel Hill, NC 27515 USA. Univ N Carolina, Dept Chem, Chapel Hill, NC USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 16-PHYS BP U182 EP U182 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100948 ER PT J AU Tait, CD Clark, DL Conradson, SD Donohoe, RJ Gordon, JC Gordon, PL Keogh, DW Konze, WV Morris, DE AF Tait, CD Clark, DL Conradson, SD Donohoe, RJ Gordon, JC Gordon, PL Keogh, DW Konze, WV Morris, DE TI Effect of aluminate on the speciation of the actinides under tank waste conditions. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87544 USA. GT Seaborg Inst, Los Alamos, NM 87544 USA. Los Alamos Natl Lab, Div Nucl Mat Technol, Los Alamos, NM 87544 USA. Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87544 USA. Los Alamos Natl Lab, Div Biosci, Los Alamos, NM 87544 USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 136-NUCL BP U26 EP U27 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100125 ER PT J AU Takahashi, K Kamata, H Sawamura, S Dimitrijevic, N Bartels, D Jonah, C AF Takahashi, K Kamata, H Sawamura, S Dimitrijevic, N Bartels, D Jonah, C TI Reactions in supercritical CO2: Neutralization, electron capture, and formation of CO2 anion clusters. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Hokkaido Univ, Dept Quantum Energy Engn, Sapporo, Hokkaido 060, Japan. Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 222-PHYS BP U211 EP U211 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101153 ER PT J AU Tanaka, R Winans, RE Hunt, JE Thiyagarajan, P Sato, S Takanohashi, T AF Tanaka, R Winans, RE Hunt, JE Thiyagarajan, P Sato, S Takanohashi, T TI Aggregation of petroleum asphaltenes in three different crude oils. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Idemitsu Kosan Co Ltd, Cent Res Labs, Sodegaura, Chiba 2990293, Japan. Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. Natl Inst Adv Ind Sci, Inst Energy Utilizat, Tsukuba, Ibaraki 3058569, Japan. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 6-FUEL BP U459 EP U460 PN 1 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002337 ER PT J AU Tandon, L Mecklenburg, SL Townsend, L Wong, AS Stalnaker, N AF Tandon, L Mecklenburg, SL Townsend, L Wong, AS Stalnaker, N TI Comparison of radiochemical analysis methods for americium and neptunium in duality control plutonium samples. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, C AAC, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, NMT 9, Los Alamos, NM USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 8-NUCL BP U6 EP U6 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100005 ER PT J AU Tang, KQ Kim, T Tolmachev, AV Anderson, GA Udseth, HR Smith, RD AF Tang, KQ Kim, T Tolmachev, AV Anderson, GA Udseth, HR Smith, RD TI Ion funnel: A special ion guide for atmospherical pressure ionization mass spectrometry. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. RI Smith, Richard/J-3664-2012 OI Smith, Richard/0000-0002-2381-2349 NR 0 TC 0 Z9 0 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 29-NUCL BP U9 EP U9 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100021 ER PT J AU Taylor, CE Manns, CR AF Taylor, CE Manns, CR TI Hydrogen production from the reforming of liquid hydrocarbons. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE, Natl Energy Technol Lab, Div Fuels & Proc Chem, Pittsburgh, PA 15236 USA. US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 108-FUEL BP U476 EP U476 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002439 ER PT J AU Taylor, CE Cugini, AV AF Taylor, CE Cugini, AV TI NETL's Ultra-Clean Fuels Focus Area: Overview. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE, Natl Energy Technol Lab, Fuels & Proc Chem Div, Pittsburgh, PA 15236 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 40-FUEL BP U465 EP U465 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002371 ER PT J AU Taylor, TP Sauer, NN AF Taylor, TP Sauer, NN TI Beryllium colorimetric detection for real time monitoring of laboratory environments. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 193-ENVR BP U450 EP U450 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002314 ER PT J AU Thomas, RD Rosen, S Derkatch, AM Hellberg, F Larsson, M Datz, S Dixon, RN van der Zande, WJ AF Thomas, RD Rosen, S Derkatch, AM Hellberg, F Larsson, M Datz, S Dixon, RN van der Zande, WJ TI Investigating the three-body fragmentation dynamics of triatomic molecules using dissociative recombination and theoretical calculations. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Stockholm, Dept Phys, S-11385 Stockholm, Sweden. Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. Univ Bristol, Sch Chem, Bristol, Avon, England. FOM, Inst Atom & Mol Phys, Nieuwegein, Netherlands. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 234-PHYS BP U213 EP U213 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101165 ER PT J AU Thompson, CV Wise, MB AF Thompson, CV Wise, MB TI Process monitoring by direct sampling ion trap mass spectrometry. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Oak Ridge Natl Lab, Instrumentat Grp, Oak Ridge, TN 37831 USA. Oak Ridge Natl Lab, CASD, Oak Ridge, TN 37831 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 194-ANYL BP U109 EP U109 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690000495 ER PT J AU Thompson, DN Ginosar, DM Coates, K AF Thompson, DN Ginosar, DM Coates, K TI Supercritical fluid regeneration of deactivated solid alkylation catalyst. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Idaho Natl Engn & Environm Lab, Dept Biotechnol, Idaho Falls, ID 83415 USA. Idaho Natl Engn & Environm Lab, Dept Chem, Idaho Falls, ID 83415 USA. RI Ginosar, Daniel/C-2357-2017 OI Ginosar, Daniel/0000-0002-8522-1659 NR 0 TC 2 Z9 2 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 46-FUEL BP U466 EP U466 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002377 ER PT J AU Thornberg, SM Jarek, RL Kelly, MJ Guilinger, TR Keenan, MR AF Thornberg, SM Jarek, RL Kelly, MJ Guilinger, TR Keenan, MR TI Sampling and analysis of the internal atmospheres of sealed systems. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Sandia Natl Labs, Albuquerque, NM 87185 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 57-NUCL BP U14 EP U14 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100049 ER PT J AU Thornton, EC Deng, BL Amonette, JE Cantrell, KJ Kim, C Lan, YQ Olsen, K Yabusaki, S AF Thornton, EC Deng, BL Amonette, JE Cantrell, KJ Kim, C Lan, YQ Olsen, K Yabusaki, S TI Interfacial reduction-oxidation mechanisms governing the fate and transport of contaminants in the vadose zone. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Richland, WA 99352 USA. New Mexico Inst Min & Technol, Dept Environm Engn, Socorro, NM USA. Nanjing Agr Coll, Coll Sci, Nanjing, Peoples R China. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 83-NUCL BP U18 EP U18 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100075 ER PT J AU Tobin, JG Terry, J Schulze, RK Farr, JD Zocco, T Heinzelman, K Rotenberg, E Shuh, DK vander Laan, G Arena, DA AF Tobin, JG Terry, J Schulze, RK Farr, JD Zocco, T Heinzelman, K Rotenberg, E Shuh, DK vander Laan, G Arena, DA TI Resonant photoemission investigation of the electronic structure of Pu. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. Lawrence Berkeley Natl Lab, Berkeley, CA USA. Daresbury Lab, Warrington, Cheshire, England. RI Rotenberg, Eli/B-3700-2009; Tobin, James/O-6953-2015 OI Rotenberg, Eli/0000-0002-3979-8844; NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 93-NUCL BP U20 EP U20 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100085 ER PT J AU Tokunaga, TK Wan, JM Hazen, TC Schwartz, E Firestone, MK Sutton, SR Newville, M Olson, KR Lanzirotti, A Rao, W AF Tokunaga, TK Wan, JM Hazen, TC Schwartz, E Firestone, MK Sutton, SR Newville, M Olson, KR Lanzirotti, A Rao, W TI Diffusion-limited chromium reduction in soil aggregates. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA. Lawrence Berkeley Natl Lab, Ctr Environm Biotechnol, Berkeley, CA USA. Univ Calif Berkeley, Berkeley, CA 94720 USA. Univ Chicago, GSECARS, Consortium Adv Radiat Sources, Chicago, IL USA. Univ Georgia, Savannah River Ecol Lab, Athens, GA 30602 USA. RI Hazen, Terry/C-1076-2012 OI Hazen, Terry/0000-0002-2536-9993 NR 0 TC 0 Z9 0 U1 1 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 38-GEOC BP U490 EP U490 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002516 ER PT J AU Tumas, B AF Tumas, B TI Homogeneous and phase-separable catalysis in alternative reaction media. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, Div Chem, CSIC, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 2-CATL BP U410 EP U410 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690102301 ER PT J AU Turner, JA AF Turner, JA TI Renewable energy: Sustainable energy for all future generations. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Natl Renewable Energy Lab, Golden, CO 80401 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 36-CHED BP U202 EP U203 PN 1 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690000924 ER PT J AU Turteltaub, KW Dingley, K Chepanoske, CL Brown, K Vogel, J AF Turteltaub, KW Dingley, K Chepanoske, CL Brown, K Vogel, J TI Development and application of accelerator mass spectrometry (AMS) in cancer research. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Biol & Biotechnol Program, Livermore, CA 94550 USA. Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94550 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 43-NUCL BP U11 EP U11 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100035 ER PT J AU Van Gorp, GS Woodring, JL AF Van Gorp, GS Woodring, JL TI Hydrofluoric: Not just another acid. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Environm Safety & Hlth Core Grp, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 18-CHAS BP U262 EP U262 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690001344 ER PT J AU Vollmer, JM Curtiss, LA Chen, CH Vissers, DR Amine, K AF Vollmer, JM Curtiss, LA Chen, CH Vissers, DR Amine, K TI Reduction mechanisms for the decomposition of electrolyte components. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. Argonne Natl Lab, Div Chem Technol, Argonne, IL 60439 USA. RI Chen, Chunhua/F-5897-2010 NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 208-COMP BP U414 EP U414 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002105 ER PT J AU Wan, JM Tokunaga, TK Saiz, E Olson, K Couture, R AF Wan, JM Tokunaga, TK Saiz, E Olson, K Couture, R TI Secondary colloids formed during leakage of tank waste solution into Hanford vadose zone sediments. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. Washington Univ, St Louis, MO 63130 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 58-GEOC BP U493 EP U493 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002536 ER PT J AU Wang, F Kim, YS Hickner, MA Zawodzinski, TA McGrath, JE AF Wang, F Kim, YS Hickner, MA Zawodzinski, TA McGrath, JE TI Synthesis of polyarylene ether block copolymers containing sulfonate groups. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Virginia Polytech Inst & State Univ, Dept Chem, Blacksburg, VA 24060 USA. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. NR 0 TC 4 Z9 4 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 309-PMSE BP U387 EP U388 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690102180 ER PT J AU Wang, HH Wang, HB Yu, LP Thiyagarajan, P AF Wang, HH Wang, HB Yu, LP Thiyagarajan, P TI Structural characterization of OPV-PEG based block copolymer nanofibers. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. Univ Chicago, Dept Chem, Chicago, IL 60637 USA. Univ Chicago, James Franck Inst, Chicago, IL 60637 USA. Argonne Natl Lab, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 12-PMSE BP U342 EP U342 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101883 ER PT J AU Wang, HL Robinson, JM Johal, MS Casson, JL Chiarelli, PA Roberts, JB AF Wang, HL Robinson, JM Johal, MS Casson, JL Chiarelli, PA Roberts, JB TI Synthesis and characterization of spin-assembled polyelectrolyte multilayered thin films. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. Univ S Florida, Dept Chem, Tampa, FL 33620 USA. Pomona Coll, Dept Chem, Claremont, CA 91711 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 259-COLL BP U371 EP U371 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690001846 ER PT J AU Wang, Z Xia, YX Mason, MJ Felmy, AR AF Wang, Z Xia, YX Mason, MJ Felmy, AR TI Investigation of Cm(III) speciation in strongly basic solutions by time-resolved laser fluorescence spectroscopy. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 139-NUCL BP U27 EP U27 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100128 ER PT J AU Wang, ZM Li, LY Ainsworth, CC AF Wang, ZM Li, LY Ainsworth, CC TI Probing the local bonding environment of trivalent rare earth in complex media with Gd(III) photo luminescence side band spectroscopy. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 85-NUCL BP U18 EP U18 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100077 ER PT J AU Wilkinson, TJ Perry, DL Martin, MC McKinney, WR Cantu, AA Thompson, AC AF Wilkinson, TJ Perry, DL Martin, MC McKinney, WR Cantu, AA Thompson, AC TI Applications of synchrotron technology to ink-paper material interactions and related aging kinetics. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. US Secret Serv, US Dept Treasury, Washington, DC USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 37-IEC BP U512 EP U512 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002632 ER PT J AU Wilkinson, TJ Perry, DL Martin, MC McKinney, WR Thompson, AG AF Wilkinson, TJ Perry, DL Martin, MC McKinney, WR Thompson, AG TI Applications of synchrotron technology to the study of latent human fingerprints. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 36-IEC BP U512 EP U512 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002631 ER PT J AU Williams, MC AF Williams, MC TI Fuel cells and the US energy future. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE, Natl Energy Technol Lab, Morgantown, WV 26505 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 28-FUEL BP U463 EP U463 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002359 ER PT J AU Wilson, EL Bender, BS AF Wilson, EL Bender, BS TI Packaging and stabilizaton of plutonium at the Los Alamos National Laboratory. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 1-TECH BP U282 EP U282 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690001450 ER PT J AU Wirth, BD Caturia, MJ Fluss, MJ de la Rubia, TD AF Wirth, BD Caturia, MJ Fluss, MJ de la Rubia, TD TI Atomistic modeling of defect production and annealing in PuGa. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Chem Mat Sci Directorate, Livermore, CA 94551 USA. RI Wirth, Brian/O-4878-2015 OI Wirth, Brian/0000-0002-0395-0285 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 52-NUCL BP U13 EP U13 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100044 ER PT J AU Wishart, JF Cook, AR Miller, JR Lymar, SV Poliakov, P Kirby, JP AF Wishart, JF Cook, AR Miller, JR Lymar, SV Poliakov, P Kirby, JP TI Fast kinetics studies at the Brookhaven Laser-Electron Accelerator Facility. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 318-CHED BP U241 EP U241 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690001205 ER PT J AU Withelmy, JB Chamberlin, EP Dragowsky, MR Fowler, MM Haight, RC Heil, M Kappeler, F Miller, GG Palmer, PD Pangault, LN Relfarth, R Rundgerg, RS Seabury, EH Strottman, DD Wender, SA Wisshak, K AF Withelmy, JB Chamberlin, EP Dragowsky, MR Fowler, MM Haight, RC Heil, M Kappeler, F Miller, GG Palmer, PD Pangault, LN Relfarth, R Rundgerg, RS Seabury, EH Strottman, DD Wender, SA Wisshak, K TI Device for Advanced Neutron Capture Experiments. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Los Alamos Natl Lab, C INC, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. Forschungszentrum Karlsruhe, Inst Kernphys, D-76021 Karlsruhe, Germany. NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 134-NUCL BP U26 EP U26 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100123 ER PT J AU Woody, C AF Woody, C TI Neutral pion production measured in the PHENIX experiment at RHIC. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 175-NUCL BP U32 EP U33 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100164 ER PT J AU Woskov, PP Bromberg, L Sundaram, SK Daniel, WE Calloway, TB AF Woskov, PP Bromberg, L Sundaram, SK Daniel, WE Calloway, TB TI Millimeter-wave on-line monitoring of nuclear waste glass vitrification process. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA. Pacific NW Natl Lab, Thermal Proc Grp, Environm Technol Div, Richland, WA USA. Westinghouse Savannah River Co, Savannah River Technol Ctr, Aiken, SC USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 185-NUCL BP U34 EP U34 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100174 ER PT J AU Wozniak, GJ Elliott, J Phair, L Moretto, LG AF Wozniak, GJ Elliott, J Phair, L Moretto, LG TI Coexistence curve of finite charged nuclear matter. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 171-NUCL BP U32 EP U32 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100160 ER PT J AU Wu, ML Singleton, M AF Wu, ML Singleton, M TI California Section Women Chemists Committee collaborations benefit all. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Sci Fun, Orinda, CA 94563 USA. Lawrence Livermore Natl Lab, Livermore, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 15-WCC BP U439 EP U439 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690102422 ER PT J AU Xantheas, SS Burnham, CJ AF Xantheas, SS Burnham, CJ TI Development of transferable interaction potentials for water: The lessons learned from clusters. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. RI Xantheas, Sotiris/L-1239-2015 NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 46-PHYS BP U186 EP U186 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100978 ER PT J AU Yang, XW Nowling, GR Morawej, M Babayan, SE Hicks, RF Park, JY Herrmann, HW AF Yang, XW Nowling, GR Morawej, M Babayan, SE Hicks, RF Park, JY Herrmann, HW TI Atmospheric pressure plasma decontamination of heavy metals. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Calif Los Angeles, Dept Chem Engn, Los Angeles, CA 90095 USA. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 165-NUCL BP U31 EP U31 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100154 ER PT J AU Yeh, MF Hahn, R AF Yeh, MF Hahn, R TI Electrochemical separation of manganese from radium-containing solutions: Application to measure ultra-low-level radioisotopes in the SNO water system. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 9-NUCL BP U6 EP U7 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100006 ER PT J AU Yeung, ES Kang, SH AF Yeung, ES Kang, SH TI Real-time dynamics of single-DNA molecules undergoing adsorption and desorption at liquid-solid interfaces. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE, Ames Lab, Ames, IA 50011 USA. Iowa State Univ Sci & Technol, Dept Chem, Ames, IA 50011 USA. Samsung Adv Inst Technol, Taejon, South Korea. Univ Wisconsin, Dept Chem, Madison, WI 53706 USA. NR 0 TC 1 Z9 2 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 302-COLL BP U378 EP U378 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690001889 ER PT J AU Yeung, ES Gruenhagen, J Aspinwall, CA Wang, ZQ Haydon, PG AF Yeung, ES Gruenhagen, J Aspinwall, CA Wang, ZQ Haydon, PG TI Cell signaling as revealed by ATP imaging. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE, Ames Lab, Ames, IA 50011 USA. Iowa State Univ, Dept Chem, Ames, IA 50011 USA. Iowa State Univ, Dept Zool & Genet, Ames, IA 50011 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 186-ANYL BP U108 EP U108 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690000487 ER PT J AU Yeung, ES Wei, W AF Yeung, ES Wei, W TI New class of dynamic polymers for DNA separation in capillary electrophoresis. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE, Ames Lab, Ames, IA 50011 USA. Iowa State Univ, Dept Chem, Ames, IA 50011 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 152-ANYL BP U103 EP U103 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690000454 ER PT J AU Yeung, ES AF Yeung, ES TI High throughput chemical and biochemical measurements. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE, Ames Lab, Ames, IA 50011 USA. Iowa State Univ, Dept Chem, Ames, IA 50011 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 10-ANYL BP U80 EP U80 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690000312 ER PT J AU Yeung, ES Xu, XN Kang, SH Zheng, JJ AF Yeung, ES Xu, XN Kang, SH Zheng, JJ TI Alignment at a solid-liquid interface and its implications on the double layer. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE, Ames Lab, Ames, IA 50011 USA. Iowa State Univ Sci & Technol, Dept Chem, Ames, IA 50011 USA. Old Dominion Univ, Dept Chem & Biochem, Norfolk, VA 23529 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 385-PHYS BP U235 EP U236 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101316 ER PT J AU Yim, H Kent, MS Ivkov, R Satija, SK Majewski, J Smith, G AF Yim, H Kent, MS Ivkov, R Satija, SK Majewski, J Smith, G TI Adsorption of sodium polystyrene sulfonate at the air surface of water by neutron reflectivity: Concentration dependence. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Sandia Natl Labs, Albuquerque, NM 87185 USA. Natl Inst Stand & Technol, Ctr Neutron Res, Gaithersburg, MD USA. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, Manuel Lujan Jr Neutron Scattering Ctr, Los Alamos, NM 87545 USA. RI Lujan Center, LANL/G-4896-2012; Ivkov, Robert/A-3902-2015 OI Ivkov, Robert/0000-0002-2930-5276 NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 140-PMSE BP U361 EP U361 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690102011 ER PT J AU Yoo, CS Iota, V AF Yoo, CS Iota, V TI Novel nonmolecular phases of CO2 and N2O: Implications to detonation chemistry. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 96-NUCL BP U20 EP U20 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100088 ER PT J AU Younes, W Becker, JA Bernstein, LA Garrett, PE McGrath, CA McNabb, DP Nelson, RO Johns, GD Wilburn, WS Drake, DM AF Younes, W Becker, JA Bernstein, LA Garrett, PE McGrath, CA McNabb, DP Nelson, RO Johns, GD Wilburn, WS Drake, DM TI Population of the T-1/2=25-minute isomer in U-235 via the (n,N') reaction. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, N Div, Livermore, CA 94551 USA. Los Alamos Natl Lab, LANSCE 3, Los Alamos, NM USA. RI McGrath, Christopher/E-8995-2013 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 131-NUCL BP U26 EP U26 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100120 ER PT J AU Younes, W Becker, JA Bernstein, LA Garrett, PE McGrath, CA McNabb, DP Nelson, RO Johns, GD Wilburn, WS Drake, DM AF Younes, W Becker, JA Bernstein, LA Garrett, PE McGrath, CA McNabb, DP Nelson, RO Johns, GD Wilburn, WS Drake, DM TI Neutron-induced fission yields following the U-235(n,f) reaction. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Lawrence Livermore Natl Lab, N Div, Livermore, CA 94551 USA. Los Alamos Natl Lab, LANSCE 3, Los Alamos, NM USA. RI McGrath, Christopher/E-8995-2013 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 132-NUCL BP U26 EP U26 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100121 ER PT J AU Zachara, JM AF Zachara, JM TI Resolving DOE site issues with EMSP research: The mobility of Cs-137 beneath leaked high-level waste tanks at hanford. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 98-NUCL BP U20 EP U20 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690100089 ER PT J AU Zhang, H Lindberg, SE Kuiken, T Nriagu, J AF Zhang, H Lindberg, SE Kuiken, T Nriagu, J TI Photochemical production of dissolved gaseous mercury in freshwater: The role of Fe(III). SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Michigan, Sch Publ Hlth, Dept Environm Hlth Sci, Ann Arbor, MI 48109 USA. Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. RI Kuiken, Todd/A-3784-2016 OI Kuiken, Todd/0000-0001-7851-6232 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 69-ENVR BP U430 EP U430 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002190 ER PT J AU Zhang, H Lindberg, SE Gustin, MS AF Zhang, H Lindberg, SE Gustin, MS TI Nature of diel trend of mercury emission from soil: Current understanding and hypotheses. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Michigan, Dept Environm Hlth Sci, Ann Arbor, MI 48109 USA. Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. Univ Nevada, Dept Environm & Resource Sci, Reno, NV 89557 USA. NR 0 TC 2 Z9 2 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 67-ENVR BP U429 EP U429 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002188 ER PT J AU Zhang, JZ Smith, BA Wei, W Joly, AG Liu, J AF Zhang, JZ Smith, BA Wei, W Joly, AG Liu, J TI Luminescence decay kinetics and anti-Stokes luminescence of Mn2+ in Mn2+-doped ZNS nanoparticles. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Univ Calif Santa Cruz, Dept Chem, Santa Cruz, CA 95064 USA. Nomad Inc, Bowie, MD USA. Pacific NW Natl Lab, Richland, WA USA. Bell Labs, Lucent Technol, Murray Hill, NJ USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 146-CHED BP U217 EP U217 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690001034 ER PT J AU Zhang, Z Cheng, LK Fenter, P Sturchio, NC Bedzyk, M Machesky, ML Wesolowski, DJ AF Zhang, Z Cheng, LK Fenter, P Sturchio, NC Bedzyk, M Machesky, ML Wesolowski, DJ TI Ionic strength dependence of Zn2+ and Sr2+ ion adsorption at the rutile/aqueous interface using X-ray standing waves. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA. Argonne Natl Lab, Div Environm Res, Argonne, IL 60439 USA. Illinois State Water Survey, Urbana, IL USA. Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA. RI Bedzyk, Michael/B-7503-2009; Cheng, Likwan/C-1436-2013 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 26-ENVR BP U423 EP U423 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002147 ER PT J AU Zhang, ZT Dai, S AF Zhang, ZT Dai, S TI Organizing molecular wires in ordered mesoporous silica. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Oak Ridge Natl Lab, Div Chem Technol, Oak Ridge, TN 37831 USA. RI Dai, Sheng/K-8411-2015 OI Dai, Sheng/0000-0002-8046-3931 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 76-INOR BP U557 EP U557 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467ET UT WOS:000170690002804 ER PT J AU Zygmunt, SA Curtiss, LA Iton, LE Bootz, BL Miller, AW AF Zygmunt, SA Curtiss, LA Iton, LE Bootz, BL Miller, AW TI What is the rate limiting step for alkane dehydrogenation in zeoute H-ZSM-5? SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 Valparaiso Univ, Dept Phys & Astron, Valparaiso, IN 46383 USA. Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. Valparaiso Univ, Dept Chem, Valparaiso, IN USA. EM stan.zygmunt@valpo.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG PY 2001 VL 222 MA 335-PHYS BP U228 EP U228 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 467EU UT WOS:000170690101266 ER PT J AU Vivancos, E Healy, C Mueller, F Whalley, D AF Vivancos, E Healy, C Mueller, F Whalley, D TI Parametric timing analysis SO ACM SIGPLAN NOTICES LA English DT Article; Proceedings Paper CT 1st Workshop on Optimization of Middleware and Distributed Systems CY JUN 18, 2001 CL SNOWBIRD, UT ID EXECUTION TIMES AB Embedded systems often have real-time constraints. Traditional timing analysis statically determines the maximum execution time of a task or a program in a real-time system. These systems typically depend on the worst-case execution time of tasks in order to make static scheduling decisions so that tasks can meet their deadlines. Static determination of worst-case execution times imposes numerous restrictions on real-time programs, which include that the maximum number of iterations of each loop must be known statically. These restrictions can significantly limit the class of programs that would be suitable for a real-time embedded system. This paper describes work-in-progress that uses static timing analysis to aid in making dynamic scheduling decisions. For instance, different algorithms with varying levels of accuracy may be selected based on the algorithm's predicted worst-case execution time and the time allotted for the task We represent the worst-case execution time of a function or a loop as a formula, where the unknown values affecting the execution time are parameterized. This parametric timing analysis produces formulas that can then be quickly evaluated at ran-time so dynamic scheduling decisions can be made with little overhead. Benefits of this work include expanding the class of applications that can be used in a real-time system, improving the accuracy of dynamic scheduling decisions, and more effective utilization of system resources. C1 Univ Politecn Valencia, Dept Sistemas Informat & Computac, Valencia 46022, Spain. Furman Univ, Dept Comp Sci, Greenville, SC 29613 USA. Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Livermore, CA 94551 USA. Florida State Univ, Dept Comp Sci, Tallahassee, FL 32306 USA. RP Univ Politecn Valencia, Dept Sistemas Informat & Computac, Valencia 46022, Spain. EM vivancos@dsic.upv.es; chris.healy@furman.edu; frank.mueller@llnl.gov; whalley@cs.fsu.edu RI Vivancos, Emilio/L-9110-2014 OI Vivancos, Emilio/0000-0002-0213-0234 NR 21 TC 5 Z9 5 U1 0 U2 0 PU ASSOC COMPUTING MACHINERY PI NEW YORK PA 2 PENN PLAZA, STE 701, NEW YORK, NY 10121-0701 USA SN 0362-1340 EI 1558-1160 J9 ACM SIGPLAN NOTICES JI ACM Sigplan Not. PD AUG PY 2001 VL 36 IS 8 BP 88 EP 93 DI 10.1145/384196.384230 PG 6 WC Computer Science, Software Engineering SC Computer Science GA 472XK UT WOS:000171010100012 ER PT J AU Langan, P Robinson, R Brown, PJ Argyriou, D Hendrickson, D Christou, G AF Langan, P Robinson, R Brown, PJ Argyriou, D Hendrickson, D Christou, G TI A low-temperature neutron diffraction study of Mn-12-acetate SO ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS LA English DT Article ID HIGH-SPIN MOLECULES; SCATTERING AB In the low-temperature region, where the dodecanuclear mixed-valence manganese carboxylate hexadecaacetatotetra-aquadodecaoxododecamanganese bis(acetic acid) tetrahydrate, [Mn12O12(C2D3O2)(16)(H2O)(4)]. 2C(2)HD(3)O(2). 4H(2), displays unusual magnetic properties, its structure is similar to that previously determined at room temperature [Lis (1980). Acta Cryst. B36, 2042-2046], differing only by a small change in the configuration of one of the coordinated acetate groups, related to the formation of additional hydrogen bonds, and by the orientation of the methyl groups. Since most of the magnetization density of this system resides on the Mn atoms, the consequences of these rearrangements for the magnetic properties of the compound are small. C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France. Univ Calif San Diego, Dept Chem, La Jolla, CA 92093 USA. Indiana Univ, Dept Chem, Bloomington, IN 47405 USA. RP Langan, P (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. RI Langan, Paul/N-5237-2015; Christou, George /A-3072-2014 OI Langan, Paul/0000-0002-0247-3122; NR 14 TC 8 Z9 8 U1 0 U2 3 PU MUNKSGAARD INT PUBL LTD PI COPENHAGEN PA 35 NORRE SOGADE, PO BOX 2148, DK-1016 COPENHAGEN, DENMARK SN 0108-2701 J9 ACTA CRYSTALLOGR C JI Acta Crystallogr. Sect. C-Cryst. Struct. Commun. PD AUG PY 2001 VL 57 BP 909 EP 910 DI 10.1107/S0108270101008599 PN 8 PG 2 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA 460QF UT WOS:000170319500012 PM 11498609 ER PT J AU Borgstahl, GEO Vahedi-Faridi, A Lovelace, J Bellamy, HD Snell, EH AF Borgstahl, GEO Vahedi-Faridi, A Lovelace, J Bellamy, HD Snell, EH TI A test of macromolecular crystallization in microgravity: large well ordered insulin crystals SO ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY LA English DT Article ID X-RAY-DIFFRACTION; GROWTH; RESOLUTION AB Crystals of insulin grown in microgravity on Space Shuttle Mission STS-95 were extremely well ordered and unusually large (many >2 mm). The physical characteristics of six microgravity and six earth-grown crystals were examined by X-ray analysis employing superfine phi slicing and unfocused synchrotron radiation. This experimental setup allowed hundreds of reflections to be precisely examined from each crystal in a short period of time. The microgravity crystals were on average 34 times larger, had sevenfold lower mosaicity, had 54-fold higher reflection peak heights and diffracted to significantly higher resolution than their earth-grown counterparts. A single mosaic domain model could account for the observed reflection profiles in microgravity crystals, whereas data from earth crystals required a model with multiple mosaic domains. This statistically significant and unbiased characterization indicates that the microgravity environment was useful for the improvement of crystal growth and the resultant diffraction quality in insulin crystals and may be similarly useful for macromolecular crystals in general. C1 Univ Toledo, Dept Chem, Toledo, OH 43606 USA. Stanford Synchrotron Radiat Lab, Menlo Park, CA 94025 USA. NASA, George C Marshall Space Flight Ctr, Struct Biol Lab, Huntsville, AL 35812 USA. RP Borgstahl, GEO (reprint author), Univ Toledo, Dept Chem, 2801 W Bancroft St, Toledo, OH 43606 USA. NR 14 TC 46 Z9 46 U1 0 U2 2 PU MUNKSGAARD INT PUBL LTD PI COPENHAGEN PA 35 NORRE SOGADE, PO BOX 2148, DK-1016 COPENHAGEN, DENMARK SN 0907-4449 J9 ACTA CRYSTALLOGR D JI Acta Crystallogr. Sect. D-Biol. Crystallogr. PD AUG PY 2001 VL 57 BP 1204 EP 1207 DI 10.1107/S0907444901007892 PN 8 PG 4 WC Biochemical Research Methods; Biochemistry & Molecular Biology; Biophysics; Crystallography SC Biochemistry & Molecular Biology; Biophysics; Crystallography GA 455RV UT WOS:000170041200032 PM 11468418 ER PT J AU Bryan, JC Sachleben, RA Urvoas, A AF Bryan, JC Sachleben, RA Urvoas, A TI 5,17-Di-tert-butyl-25,27-dihydroxycalix[4]arene SO ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE LA English DT Article ID CALIX<4>ARENE AB Half of the title compound, C38H44O2, makes up the asymmetric unit; the whole molecule possesses inversion symmetry. The calix[4]arene conformation is similar to the unsubstituted calix[4]arene. Only one intermolecular interaction is noted. C1 Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA. RP Bryan, JC (reprint author), Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA. NR 11 TC 0 Z9 0 U1 0 U2 1 PU MUNKSGAARD INT PUBL LTD PI COPENHAGEN PA 35 NORRE SOGADE, PO BOX 2148, DK-1016 COPENHAGEN, DENMARK SN 1600-5368 J9 ACTA CRYSTALLOGR E JI Acta Crystallogr. Sect. E.-Struct Rep. Online PD AUG PY 2001 VL 57 BP O781 EP O782 DI 10.1107/S160053680101220X PN 8 PG 2 WC Crystallography SC Crystallography GA 480EY UT WOS:000171450100073 ER PT J AU Baskes, MI Hoagland, RG AF Baskes, MI Hoagland, RG TI Dislocation core structures and mobilities in MoSi2 SO ACTA MATERIALIA LA English DT Article DE dislocations; mobility; intermetallic compounds; theory & modeling; structural behavior; computer simulation ID EMBEDDED-ATOM METHOD; ELASTIC-CONSTANTS; POTENTIALS; IMPURITIES AB Using a modified version of the embedded atom method (EAM) that includes angular forces; potentials are developed for MoSi2.. The potentials describe the structural and elastic properties in reasonable agreement with experiment. These potentials are used to calculate the core structures and resistance to glide for four straight dislocations that are observed in MoSi2. In contrast to previous calculations in materials with simple crystal structures, such as face-centered cubic metals, it was necessary to use molecular dynamics at elevated temperature to obtain any dislocation mobility. It is found that only one of the dislocations, a/2 < 111 > (110) with predominantly edge character, has any significant mobility at reasonable stresses. In one case, the dislocation dissociates into seven partials at high shear strain and the response is asymmetric with respect to the direction of the applied shear strain. (C) 2001 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved. C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Baskes, MI (reprint author), Los Alamos Natl Lab, MSG755, Los Alamos, NM 87545 USA. RI Hoagland, Richard/G-9821-2012 NR 13 TC 4 Z9 4 U1 0 U2 8 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1359-6454 J9 ACTA MATER JI Acta Mater. PD AUG 1 PY 2001 VL 49 IS 13 BP 2357 EP 2364 DI 10.1016/S1359-6454(01)00171-9 PG 8 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA 457WH UT WOS:000170159500001 ER PT J AU Chen, WYC Guo, VJW AF Chen, WYC Guo, VJW TI Bijections behind the Ramanujan polynomials SO ADVANCES IN APPLIED MATHEMATICS LA English DT Article; Proceedings Paper CT International Conference on the FoataFest CY JUN, 2000 CL PHILADELPHIA, PENNSYLVANIA DE Ramanujan polynomials; bijection; rooted tree; improper edge ID FORMULA; TREES AB The Ramanujan polynomials were introduced by Ramanujan in his study of power series inversions. In an approach to the Cayley formula on the number of trees, Shor discovers a refined recurrence relation in terms of the number of improper edges, without realizing the connection to the Ramanujan polynomials. On the other hand, Dumont and Ramamonjisoa independently take the grammatical approach to a sequence associated with the Ramanujan polynomials and have reached the same conclusion as Shor's. It was a coincidence for Zeng to realize that the Shor polynomials turn out to be the Ramanujan polynomials through all explicit substitution of parameters. Shor also discovers a recursion of Ramanujan polynomials which is equivalent to the Berndt-Evans-Wilson recursion under the substitution of Zeng and asks for a combinatorial interpretation. The objective of this paper is to present a bijection for the Shot recursion, or the Berndt-Evans-Wilson recursion, answering the question of Shor. Such a bijection also leads to a combinatorial interpretation of the recurrence relation originally given by Ramanujan. (C) 2001 Academic Press. C1 Nankai Univ, Ctr Combinator, Key Lab Pure Math & Combinator, Minist Educ, Tianjin 300071, Peoples R China. Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Chen, WYC (reprint author), Nankai Univ, Ctr Combinator, Key Lab Pure Math & Combinator, Minist Educ, Tianjin 300071, Peoples R China. OI Guo, Victor J. W./0000-0002-4153-715X NR 6 TC 5 Z9 5 U1 0 U2 1 PU ACADEMIC PRESS INC PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0196-8858 J9 ADV APPL MATH JI Adv. Appl. Math. PD AUG-OCT PY 2001 VL 27 IS 2-3 BP 336 EP 356 DI 10.1006/aama.2001.0738 PG 21 WC Mathematics, Applied SC Mathematics GA 493YT UT WOS:000172251600009 ER PT J AU Yeh, GT Burgos, WD Zachara, JM AF Yeh, GT Burgos, WD Zachara, JM TI Modeling and measuring biogeochemical reactions: system consistency, data needs, and rate formulations SO ADVANCES IN ENVIRONMENTAL RESEARCH LA English DT Article DE geochemical modeling; biochemical modeling; kinetic modeling; system consistency; data requirements; bacterial iron reduction; kinetic experiments ID DISSIMILATORY REDUCTION; DISSOLUTION REACTIONS; MICROBIAL REDUCTION; TRANSPORT; IRON; OXIDE; EQUILIBRIUM; ADSORPTION; BACTERIUM; GROWTH AB This paper intends to lay-out a foundation of protocols for planning and analyzing biogeochemical experiments, It presents critical theoretical issues that must be considered for proper application of reaction-based biogeochemical models. The selection of chemical components is not unique and a decomposition of the reaction matrix should be used for formal selection. The decomposition reduces the set of ordinary differential equations governing the production-consumption of chemical species into three subsets of equations: mass action; kinetic-variable; and mass conservation, The consistency of mass conservation equations must be assessed with experimental data before kinetic modeling is initiated. Assumptions regarding equilibrium reactions should also be assessed. For a system with M chemical species involved in N reactions with N-I linearly- independent reactions and N-E linearly-independent equilibrium reactions, the minimum number of chemical species concentration vs. time curves that must be measured to evaluate the kinetic suite of reactions using a reaction-based model will be (N-I - N-E). However, for a partial assessment of system consistency, at least one more species must be measured [i.e. (N-I - N-E + 1)]. For a complete assessment of system consistency, (N-I - N-E + N-C) additional species would have to be measured, where N. is the number of chemical components. Reaction rates for kinetic reactions that are linearly independent of other kinetic reactions can be determined based on only one profile of a kinetic-variable concentration vs. time for each kinetic reaction. Reaction rates for parallel kinetic reactions that are linearly dependent on each other cannot be uniquely segregated when they result in production of the same species, however, they must be included for simulation purposes. Kinetic reactions that are linearly dependent only on equilibrium reactions are redundant and do not have to be modeled. The bioreduction of ferric oxide is used as an example to functionally demonstrate these points, and shows that Henri-Michaelis-Benton-Monod kinetics should be applied with care to coupled abiotic and biotic systems. (C) 2001 Elsevier Science Ltd. All rights reserved. C1 Univ Cent Florida, Dept Civil & Environm Engn, Orlando, FL 32816 USA. Penn State Univ, Dept Civil & Environm Engn, University Pk, PA 16802 USA. Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. RP Yeh, GT (reprint author), Univ Cent Florida, Dept Civil & Environm Engn, 4000 Cent Florida Blvd, Orlando, FL 32816 USA. NR 41 TC 17 Z9 18 U1 2 U2 4 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 1093-0191 J9 ADV ENVIRON RES JI Adv. Environ. Res. PD AUG PY 2001 VL 5 IS 3 BP 219 EP 237 DI 10.1016/S1093-0191(00)00057-5 PG 19 WC Engineering, Environmental; Engineering, Chemical SC Engineering GA 463NQ UT WOS:000170482600002 ER PT J AU Oostrom, M White, MD Brusseau, ML AF Oostrom, M White, MD Brusseau, ML TI Theoretical estimation of free and entrapped nonwetting-wetting fluid interfacial areas in porous media SO ADVANCES IN WATER RESOURCES LA English DT Article DE specific interfacial area; entrapment; retention relation; multifluid flow; nonaqueous-phase liquid ID NONAQUEOUS-PHASE LIQUID; IMMISCIBLE FLUIDS; MULTIPHASE FLOW; SATURATION; PRESSURE; MODEL; PORE; DISSOLUTION; ADSORPTION; SYSTEMS AB Fluid-fluid interfacial areas play important roles in numerous subsurface processes such as dissolution, volatilization, and adsorption. Integral expressions have been derived to estimate both entrapped (discontinuous) and free (continuous) nonwetting fluid-wetting fluid specific interfacial areas in porous media. The expressions, compatible with widely used capillary head-saturation and entrapment models, require information on capillary head-saturation relation parameters, porosity, and fluid-pair interfacial tension. In addition, information on the maximum entrapped nonwetting fluid saturation as well as the main drainage branch reversal point for water and total liquid saturations is necessary to estimate entrapped fluid interfacial areas. Implementation of the interfacial area equations in continuum-based multifluid flow simulators is straightforward since no additional parameters are needed than those required by the simulators to complete the multifluid flow computations. A limited sensitivity analysis, based on experimentally obtained parameter values, showed that imposed variations resulted in logical and consistent changes in predicted specific interfacial areas for both entrapped and free nonwetting fluid-wetting fluid systems. A direct comparison with published experimental work to test the derived expressions was limited to free air-water systems and yielded reasonable results. Such comparisons are often not possible because of the lack of information given on retention parameters, and variables used to determine nonwetting fluid entrapment. This contribution is dedicated to John W. Cary. (C) 2001 Elsevier Science Ltd. All rights reserved. C1 Pacific NW Natl Lab, Environm Technol Div, Richland, WA 99352 USA. Univ Arizona, Dept Soil Water & Environm Sci, Tucson, AZ 85721 USA. Univ Arizona, Dept Hydrol & Water Resources, Tucson, AZ 85721 USA. RP Oostrom, M (reprint author), Pacific NW Natl Lab, Environm Technol Div, POB 999,MS K9-33, Richland, WA 99352 USA. NR 33 TC 24 Z9 24 U1 0 U2 2 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0309-1708 J9 ADV WATER RESOUR JI Adv. Water Resour. PD AUG PY 2001 VL 24 IS 8 BP 887 EP 898 DI 10.1016/S0309-1708(01)00017-3 PG 12 WC Water Resources SC Water Resources GA 453FB UT WOS:000169904900005 ER PT J AU Le Ribault, C Sarkar, S Stanley, SA AF Le Ribault, C Sarkar, S Stanley, SA TI Large eddy simulation of evolution of a passive scalar in plane jet SO AIAA JOURNAL LA English DT Article ID FINITE-DIFFERENCE SCHEMES; BOUNDARY-CONDITIONS; TURBULENT FLOWS; MODEL; TRANSPORT; LAYER; FLUX AB Large-eddy simulation (LES) is performed to investigate the passive scalar development in a plane jet. This is a Follow-up of our previous simulation of the jet flowfield. The LES results are compared to both experiments and direct numerical simulation (DNS). Two subgrid models are investigated: the dynamic Smagorinsky model and the dynamic mixed model. It is found that the evolution of mean scalar and turbulent scalar intensity is well represented. Some properties of the LES models such as the evolution of the dynamic constant and the subgrid viscosity are also discussed. Profiles of higher scalar moments show non-Gaussianity near the jet boundaries that is associated with external intermittency. Finally, the probability density function (PDF) of the passive scalar computed with LES is obtained and compared with the true PDF obtained with DNS. The LES approach is found able to represent the main characteristics of the PDF Including qualitative changes during its initial evolution. C1 Lab Mecan Fluids & Acoust, F-69131 Ecully, France. Univ Calif San Diego, La Jolla, CA 92093 USA. Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Le Ribault, C (reprint author), Lab Mecan Fluids & Acoust, F-69131 Ecully, France. NR 30 TC 11 Z9 11 U1 1 U2 4 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 USA SN 0001-1452 J9 AIAA J JI AIAA J. PD AUG PY 2001 VL 39 IS 8 BP 1509 EP 1516 PG 8 WC Engineering, Aerospace SC Engineering GA 458XW UT WOS:000170221600011 ER PT J AU Lu, CM Burton, D Fitzgerald, R Vogel, J Buchholz, B Deftos, L Herold, D AF Lu, CM Burton, D Fitzgerald, R Vogel, J Buchholz, B Deftos, L Herold, D TI Application of a C-14-labeled antibody in a two-site immunoassay using accelerator mass spectrometry. SO AMERICAN JOURNAL OF CLINICAL PATHOLOGY LA English DT Meeting Abstract C1 Univ Calif San Diego, VA San Diego Med Ctr, Dept Pathol, La Jolla, CA 92093 USA. Univ Calif San Diego, VA San Diego Med Ctr, Dept Med, La Jolla, CA 92093 USA. Univ Calif Lawrence Livermore Natl Lab, AMS Lab, Livermore, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER SOC CLIN PATHOLOGISTS PI CHICAGO PA 2100 W HARRISON ST, CHICAGO, IL 60612 USA SN 0002-9173 J9 AM J CLIN PATHOL JI Am. J. Clin. Pathol. PD AUG PY 2001 VL 116 IS 2 MA 12 BP 282 EP 282 PG 1 WC Pathology SC Pathology GA 457LM UT WOS:000170138700026 ER PT J AU Stapp, HP AF Stapp, HP TI Response to "Comment on 'Nonlocal character of quantum theory,'" by Abner Shimony and Howard Stein [Am. J. Phys. 69 (8), 848-853 (2001)] SO AMERICAN JOURNAL OF PHYSICS LA English DT Article AB The question raised by Shimony and Stein is examined and used to explain in more detail a key point of my proof that any theory that conforms to certain general ideas of orthodox relativistic quantum field theory must permit transfers of information over space-like intervals. It is also explained why this result is not a problem for relativistic quantum theory, but, on the contrary, opens the door to a satisfactory realistic relativistic quantum theory based on the ideas of Tomonaga, Schwinger, and von Neumann. (C) 2001 American Association of Physics Teachers. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Stapp, HP (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. NR 12 TC 8 Z9 8 U1 0 U2 0 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0002-9505 J9 AM J PHYS JI Am. J. Phys. PD AUG PY 2001 VL 69 IS 8 BP 854 EP 859 DI 10.1119/1.1374252 PG 6 WC Education, Scientific Disciplines; Physics, Multidisciplinary SC Education & Educational Research; Physics GA 454XZ UT WOS:000169998200003 ER PT J AU Smith, BK Volaufova, J West, DB AF Smith, BK Volaufova, J West, DB TI Increased flavor preference and lick activity for sucrose and corn oil in SWR/J vs. AKR/J mice SO AMERICAN JOURNAL OF PHYSIOLOGY-REGULATORY INTEGRATIVE AND COMPARATIVE PHYSIOLOGY LA English DT Article DE taste; drinking; inbred strains; mouse ID TASTE RECEPTORS; RATS; DIET; FAT; OCTAACETATE; PERCEPTION; ACCEPTANCE; RESPONSES; INTENSITY; GENETICS AB Nutrient preferences and orosensory responses were characterized in two mouse inbred strains. In two-bottle solution tests (tastant vs. vehicle; ascending concentrations), the effects of strain and chow type (12 or 26% fat) on preference thresholds for sucrose and corn oil were compared in AKR/J and SWR/J mice. SWR/J mice displayed lower preference thresholds and ingested more sucrose than AKR/J mice did. SWR/J mice also showed lower preference thresholds and consumed more corn oil than AKR/J mice did; corn oil preference was suppressed 3.5-fold in AKR/J mice compared with SWR/J mice when fed 26% fat chow. Next, licking was recorded during 30-s access to sucrose or corn oil across a range of concentrations. SWR/J mice licked the tastants more than AKR/J mice did. Analysis of modal interlick intervals during lick training revealed that SWR/J mice licked water faster than AKR/J mice when water deprived, suggesting that motor as well as sensory factors may determine lick responses to tastants in brief-access tests. Finally, in two-bottle tests pitting maximally preferred concentrations of sucrose (8 or 16%) against corn oil (20%), SWR/J mice highly preferred sucrose over corn oil at either sucrose concentration. AKR/J mice preferred corn oil over 8% sucrose but reversed their preference when 16% sucrose was offered. These results support a primary role of flavor in the nutrient preferences of SWR/J mice. In AKR/J mice, the low lick activity for sucrose and corn oil and greater suppression of corn oil preference by the high-fat chow suggest that their preferences depend more on postingestive factors than on flavor. C1 Louisiana State Univ, Pennington Biomed Res Ctr, Baton Rouge, LA 70808 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Smith, BK (reprint author), Louisiana State Univ, Pennington Biomed Res Ctr, 6400 Perkins Rd, Baton Rouge, LA 70808 USA. FU NIDDK NIH HHS [R01 DK053113, DK-45895, DK-53113] NR 33 TC 20 Z9 20 U1 1 U2 1 PU AMER PHYSIOLOGICAL SOC PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 USA SN 0363-6119 J9 AM J PHYSIOL-REG I JI Am. J. Physiol.-Regul. Integr. Comp. Physiol. PD AUG PY 2001 VL 281 IS 2 BP R596 EP R606 PG 11 WC Physiology SC Physiology GA 453DP UT WOS:000169901500028 PM 11448865 ER PT J AU Volkow, ND AF Volkow, ND TI Drug abuse and mental illness: Progress in understanding comorbidity SO AMERICAN JOURNAL OF PSYCHIATRY LA English DT Editorial Material C1 Brookhaven Natl Lab, Upton, NY 11973 USA. RP Volkow, ND (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. NR 5 TC 38 Z9 41 U1 3 U2 6 PU AMER PSYCHIATRIC PRESS, INC PI WASHINGTON PA 1400 K ST, N W, STE 1101, WASHINGTON, DC 20005 USA SN 0002-953X J9 AM J PSYCHIAT JI Am. J. Psychiat. PD AUG PY 2001 VL 158 IS 8 BP 1181 EP 1183 DI 10.1176/appi.ajp.158.8.1181 PG 3 WC Psychiatry SC Psychiatry GA 459JG UT WOS:000170246800001 PM 11481146 ER PT J AU Hamada, M Martz, HF Reese, CS Wilson, AG AF Hamada, M Martz, HF Reese, CS Wilson, AG TI Finding near-optimal Bayesian experimental designs via genetic algorithms SO AMERICAN STATISTICIAN LA English DT Article DE expected information gain; logistic regression; linear and nonlinear regression; multifactor designs; Shannon information ID NONLINEAR-REGRESSION MODELS; EXPONENTIAL-GROWTH MODEL; NORMALIZING CONSTANTS; LINEAR-MODEL; APPROXIMATIONS; INFERENCE AB This article shows how a genetic algorithm can be used to find near-optimal Bayesian experimental designs for regression models. The design criterion considered is the expected Shannon information gain of the posterior distribution obtained from performing a given experiment compared with the prior distribution, Genetic algorithms are described and then applied to experimental design. The methodology is then illustrated with a wide range of examples: linear and nonlinear regression, single and multiple factors, and normal and Bernoulli distributed experimental data. C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Hamada, M (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87545 USA. OI Wilson, Alyson/0000-0003-1461-6212 NR 46 TC 43 Z9 43 U1 2 U2 5 PU AMER STATISTICAL ASSOC PI ALEXANDRIA PA 1429 DUKE ST, ALEXANDRIA, VA 22314 USA SN 0003-1305 J9 AM STAT JI Am. Stat. PD AUG PY 2001 VL 55 IS 3 BP 175 EP 181 DI 10.1198/000313001317098121 PG 7 WC Statistics & Probability SC Mathematics GA 460GF UT WOS:000170299300001 ER PT J AU Chandler, DP Brown, J Bruckner-Lea, CJ Olson, L Posakony, GJ Stults, JR Valentine, NB Bond, LJ AF Chandler, DP Brown, J Bruckner-Lea, CJ Olson, L Posakony, GJ Stults, JR Valentine, NB Bond, LJ TI Continuous spore disruption using radially focused, high-frequency ultrasound SO ANALYTICAL CHEMISTRY LA English DT Article ID POLYMERASE CHAIN-REACTION; OLIGONUCLEOTIDE ARRAYS; MASS-SPECTROMETRY; DNA ANALYSIS; PCR; HYBRIDIZATION; ELECTROSPRAY; PRODUCTS AB We report on the development of a novel, continuous-flow, radially focused ultrasonic disruptor capable of lysing Bacillus spores in the absence of added chemical denaturants, enzymes, or microparticles. Greater than 99% disruption was achieved for Bacillus globigii spores and Escherichia coli and Bacillus subtilis vegetative cells with sample residence times of 62, 12, and 12 s, respectively. Microscopic and SEM images indicated that at equivalent power levels, the incidence of cell death or loss of viability typically exceeded the efficiency of (visible) cell lysis. However, semiquantitative PCR showed up to a 1000-fold increase in intracellular DNA availability from ultrasonically disrupted spores, and liberated DNA was intact and available for subsequent detection. C1 Pacific NW Natl Lab, Richland, WA 99352 USA. RP Chandler, DP (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. NR 14 TC 35 Z9 36 U1 1 U2 16 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0003-2700 J9 ANAL CHEM JI Anal. Chem. PD AUG 1 PY 2001 VL 73 IS 15 BP 3784 EP 3789 DI 10.1021/ac010264j PG 6 WC Chemistry, Analytical SC Chemistry GA 459WL UT WOS:000170274400046 PM 11510849 ER PT J AU An, YH Webb, D Gutowska, A Mironov, VA Friedman, RJ AF An, YH Webb, D Gutowska, A Mironov, VA Friedman, RJ TI Regaining chondrocyte phenotype in thermosensitive gel culture SO ANATOMICAL RECORD LA English DT Article DE thermosensitive polymer; chondrocytes; cell culture ID ALKALINE-PHOSPHATASE; ARTICULAR-CARTILAGE; REPAIR; COLLAGEN; AGAROSE AB Chondrocyte tissue engineering continues to be a challenging problem, When chondrocytes are duplicated in vitro, it is imperative to obtain an adequate number of cells of optimal phenotype. A temperature-sensitive polymer gel, a copolymer of poly(N-isopropylacrylamide) and acrylic acid (PNiPAAm-co-Aac), has the ability of gelling at 37 degreesC (the lower critical solution temperature, LCST) or above and liquefying below that temperature (Vernon and Gutowska, Macromol. Symp. 1996;109:155-167). The hypothesis of this study was that chondrocytes could (1) duplicate in the copolymer gel; (2) regain their chondrocyte phenotype; and (3) be easily recovered from the gel by simply lowering the temperature below 37 degreesC. Chondrocytes from adult rabbit scapular cartilage were harvested and cultured in a monolayer culture until confluency (approximately 2 weeks). Next, the cells were harvested and seeded into the copolymer gel and cultured for 2-4 weeks. The phenotype of the cultured cells was then characterized. Two groups of control cultures, monolayer and agarose gel, were used to compare their ability to maintain chondrocyte phenotype. The results showed that chondrocytes isolated from rabbit scapula can re-express chondrocyte phenotype in agarose culture and polymer gel culture but not in monolayer culture. Also, cultured chondrocytes can be easily recovered from polymer gel culture by simply lowering the temperature. This new in vitro method of chondrocyte culture is recommended for chondrocyte propagation and regaining chondrocyte phenotype before cell seeding or transplantation. Anat Rec 263:336-341,2001. (C) 2001 Wiley-Liss,Inc. C1 Med Univ S Carolina, Dept Orthopaed Surg, Orthopaed Res Lab, Charleston, SC 29425 USA. Pacific NW Natl Lab, Richland, WA 99352 USA. Med Univ S Carolina, Dept Anat & Cell Biol, Charleston, SC 29425 USA. Carolina Ctr Orthopaed Surg, Charleston, SC 29414 USA. RP An, YH (reprint author), Med Univ S Carolina, Dept Orthopaed Surg, Orthopaed Res Lab, 96 Jonathan Lucas St,CSB 708,POB 250622, Charleston, SC 29425 USA. NR 21 TC 28 Z9 29 U1 0 U2 4 PU WILEY-LISS PI NEW YORK PA DIV JOHN WILEY & SONS INC, 605 THIRD AVE, NEW YORK, NY 10158-0012 USA SN 0003-276X J9 ANAT REC JI Anat. Rec. PD AUG 1 PY 2001 VL 263 IS 4 BP 336 EP 341 DI 10.1002/ar.1114 PG 6 WC Anatomy & Morphology SC Anatomy & Morphology GA 461NC UT WOS:000170369500002 PM 11500809 ER PT J AU Gutowska, A Jeong, B Jasionowski, M AF Gutowska, A Jeong, B Jasionowski, M TI Injectable gels for tissue engineering SO ANATOMICAL RECORD LA English DT Article DE tissue engineering; injectable gels ID COPOLYMER AQUEOUS-SOLUTIONS; TRIBLOCK COPOLYMER; HYALURONIC-ACID; DRUG-DELIVERY; PLGA; CHONDROCYTES; CARTILAGE; ALGINATE; AUGMENTATION; POLYMERS AB Recently, tissue engineering approaches using injectable, in situ gel forming systems have been reported. In this review, the gelation processes and several injectable systems that exhibit in situ gel formation at physiological conditions are discussed. Applications of selected injectable systems (alginate, chitosan, hyaluronan, polyethylene oxide/polypropylene oxide) in tissue engineering are also described. Injectable polymer formulation can gel in vivo in response to temperature change (thermal gelation), pH change, ionic cross-linking, or solvent exchange. Kinetics of gelation is directly affected by its mechanism. Injectable formulations offer specific advantages over preformed scaffolds such as: possibility of a minimally invasive implantation, an ability to fill a desired shape, and easy incorporation of various therapeutic agents. Several factors need to be considered before an injectable gel can be selected as a candidate for tissue engineering applications. Apart from tissue-specific cell-matrix interactions, the following gel properties need to be considered: gelation kinetics, matrix resorption rate, possible toxicity of degradation products and their elimination routes, and finally possible interference of the gel matrix with histogenesis. Anat Rec 263:342-349, 2001. (C) 2001 Wiley-Liss, Inc. C1 Pacific NW Natl Lab, Mat & Chem Res Sect, Richland, WA 99352 USA. Univ Gdansk, PL-80952 Gdansk, Poland. RP Gutowska, A (reprint author), Pacific NW Natl Lab, Mat & Chem Res Sect, 902 Battelle Blvd,POB 999,K2-44, Richland, WA 99352 USA. EM anna.gutowska@pnl.gov NR 45 TC 274 Z9 282 U1 10 U2 95 PU WILEY-LISS PI HOBOKEN PA DIV JOHN WILEY & SONS INC, 111 RIVER ST, HOBOKEN, NJ 07030 USA SN 0003-276X J9 ANAT RECORD JI Anat. Rec. PD AUG 1 PY 2001 VL 263 IS 4 BP 342 EP 349 DI 10.1002/ar.1115 PG 8 WC Anatomy & Morphology SC Anatomy & Morphology GA 461NC UT WOS:000170369500003 PM 11500810 ER PT J AU Trzebiatowski, JR Ragatz, DM de Bruijn, FJ AF Trzebiatowski, JR Ragatz, DM de Bruijn, FJ TI Isolation and regulation of Sinorhizobium meliloti 1021 loci induced by oxygen limitation SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY LA English DT Article ID CYANOPHYCIN GRANULE POLYPEPTIDE; ALGA ANABAENA-CYLINDRICA; RHIZOBIUM-MELILOTI; BRADYRHIZOBIUM-JAPONICUM; ASPARAGINE SYNTHETASE; GENES; CYANOBACTERIUM; TRANSPOSON; PSYM AB Eleven Simorhizobium meliloti 1021 loci whose expression was induced under low oxygen concentrations were identified in a collection of 5,000 strains carrying Tn5-1063 (luxAB) transcriptional reporter gene fusions. The 11 Tn5-1063-tagged loci were cloned and characterized. The dependence of the expression of the tagged loci on the FixL/FixJ oxygen-sensing two-component regulatory system was examined. Three of the loci were found to be dependent upon fixL and fixJ for their expression, while one locus showed a partial dependence. The remaining seven loci showed fixL- and fixJ- independent induction of expression in response to oxygen limitation. This suggests that in S. meliloti, additional regulatory system(s) exist that respond either directly or indirectly to oxygen limitation conditions. C1 Michigan State Univ, US DOE, Plant Res Lab, E Lansing, MI 48824 USA. Michigan State Univ, NSF, Ctr Microbial Ecol, E Lansing, MI 48824 USA. Michigan State Univ, Dept Microbiol, E Lansing, MI 48824 USA. RP Trzebiatowski, JR (reprint author), Wayne State Univ, Ctr Mol Med & Genet, 540 E Canfield St, Detroit, MI 48201 USA. FU NIGMS NIH HHS [F32 GM019412, 5-F32-GM19412-03] NR 25 TC 14 Z9 15 U1 0 U2 0 PU AMER SOC MICROBIOLOGY PI WASHINGTON PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA SN 0099-2240 J9 APPL ENVIRON MICROB JI Appl. Environ. Microbiol. PD AUG PY 2001 VL 67 IS 8 BP 3728 EP 3731 DI 10.1128/AEM.67.8.3728-3731.2001 PG 4 WC Biotechnology & Applied Microbiology; Microbiology SC Biotechnology & Applied Microbiology; Microbiology GA 460FP UT WOS:000170297800055 PM 11472955 ER PT J AU Radnedge, L Gamez-Chin, S McCready, PM Worsham, PL Andersen, GL AF Radnedge, L Gamez-Chin, S McCready, PM Worsham, PL Andersen, GL TI Identification of nucleotide sequences for the specific and rapid detection of Yersinia pestis SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY LA English DT Article ID PSEUDOTUBERCULOSIS; HYBRIDIZATION; DNA AB Suppression subtractive hybridization, a cost-effective approach for targeting unique DNA, was used to identify a 41.7-kb Yersinia pestis-specific region. One primer pair designed from this region amplified PCR products from natural isolates of Y. pestis and produced no false positives for near neighbors, an important criterion for unambiguous bacterial identification. C1 Lawrence Livermore Natl Lab, Biol & Biotechnol Res Program, Livermore, CA 94551 USA. USA, Res Inst Infect Dis, Ft Detrick, MD 21702 USA. RP Andersen, GL (reprint author), Biol & Biotechnol Res Program, L-441,7000 East Ave, Livermore, CA 94550 USA. RI Andersen, Gary/G-2792-2015 OI Andersen, Gary/0000-0002-1618-9827 NR 16 TC 38 Z9 64 U1 0 U2 0 PU AMER SOC MICROBIOLOGY PI WASHINGTON PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA SN 0099-2240 J9 APPL ENVIRON MICROB JI Appl. Environ. Microbiol. PD AUG PY 2001 VL 67 IS 8 BP 3759 EP 3762 DI 10.1128/AEM.67.8.3759-3762.2001 PG 4 WC Biotechnology & Applied Microbiology; Microbiology SC Biotechnology & Applied Microbiology; Microbiology GA 460FP UT WOS:000170297800063 PM 11472963 ER PT J AU Naulleau, PP Goldberg, KA Batson, PJ Jeong, S Underwood, JH AF Naulleau, PP Goldberg, KA Batson, PJ Jeong, S Underwood, JH TI Tolerancing of diffraction-limited Kirkpatrick-Baez synchrotron beamline optics for extreme-ultraviolet metrology SO APPLIED OPTICS LA English DT Article ID X-RAY MIRRORS; AT-WAVELENGTH; LITHOGRAPHY; RADIATION; INTERFEROMETRY AB The recent interest in extreme-ultraviolet (EUV) lithography has led to the development of an array of at-wavelength metrologies implemented on synchrotron beamlines. These beamlines commonly use Kirkpatrick-Baez (K-B) systems consisting of two perpendicular, elliptically bent mirrors in series. To achieve high-efficiency focusing into a small spot, unprecedented fabrication and assembly tolerance is required of these systems. Here we present a detailed error-budget analysis and develop a set of specifications for diffraction-limited performance for the K-B optic operating on the EUV interferometry beamline at Lawrence Berkeley National Laboratory's Advanced Light Source. The specifications are based on CODE V modeling tools developed explicitly for these optical systems. Although developed for one particular system, the alignment sensitivities presented here are relevant to K-B system designs in general. (C) 2001 Optical Society of America. C1 Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA. RP Naulleau, PP (reprint author), Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA. EM pnaulleau@lbl.gov NR 19 TC 10 Z9 10 U1 0 U2 0 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1559-128X EI 2155-3165 J9 APPL OPTICS JI Appl. Optics PD AUG 1 PY 2001 VL 40 IS 22 BP 3703 EP 3709 DI 10.1364/AO.40.003703 PG 7 WC Optics SC Optics GA 457VL UT WOS:000170157500011 PM 18360402 ER PT J AU Canpolat, M Mourant, JR AF Canpolat, M Mourant, JR TI Particle size analysis of turbid media with a single optical fiber in contact with the medium to deliver and detect white light SO APPLIED OPTICS LA English DT Article ID PHOTON-MIGRATION TECHNIQUES; CONCENTRATED SUSPENSIONS; POLARIZED-LIGHT; SCATTERING; TISSUE; TRANSPORT; RELEVANT AB Wavelength-dependent elastic-scattering spectra of highly scattering media measured with only a single fiber for both light delivery and collection are presented. White light is used as a source, and oscillations of the detected light intensities are seen as a function of wavelength. The maximum and minimum of the oscillations can be used to determine scatterer size for monodisperse distributions of spheres when the refractive indices are known. In addition, several properties of the probe relevant to tissue diagnosis are examined and discussed including the effects of absorption, a broad distribution of scatterers, and the depth probed. (C) 2001 Optical Society of America. C1 Los Alamos Natl Lab, Div Biosci, Los Alamos, NM 87545 USA. RP Canpolat, M (reprint author), Los Alamos Natl Lab, Div Biosci, MS-E535, Los Alamos, NM 87545 USA. EM jmourant@lanl.gov NR 16 TC 54 Z9 55 U1 1 U2 7 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1559-128X EI 2155-3165 J9 APPL OPTICS JI Appl. Optics PD AUG 1 PY 2001 VL 40 IS 22 BP 3792 EP 3799 DI 10.1364/AO.40.003792 PG 8 WC Optics SC Optics GA 457VL UT WOS:000170157500022 PM 18360413 ER PT J AU Niemczyk, TM Zhang, SB Haaland, DM AF Niemczyk, TM Zhang, SB Haaland, DM TI Monitoring dielectric thin-film production on product wafers using infrared emission spectroscopy SO APPLIED SPECTROSCOPY LA English DT Article DE IR emission; dielectric thin films; multivariate calibration; partial least squares (PLS); borophosphosilicate glass (BPSG) ID REFLECTION-ABSORPTION SPECTROSCOPY; BOROPHOSPHOSILICATE GLASS-FILMS; QUANTITATIVE-DETERMINATION; PHOSPHOSILICATE GLASS; SILICON-WAFERS; CALIBRATION AB Monitoring of dielectric thin-film production in the microelectronics industry is generally accomplished by depositing a representative film on a monitor wafer and determining the film properties off line. One of the most important dielectric thin films in the manufacture of integrated circuits is borophosphosilicate glass (BPSG). The critical properties of BPSG thin films are the boron content, phosphorus content, and film thickness. We have completed an experimental study that demonstrates that infrared emission spectroscopy coupled with multivariate analysis can be used to simultaneously determine these properties directly from the spectra of product wafers, thus eliminating the need for producing monitor wafers. In addition, infrared emission data can be used to simultaneously determine the film temperature, which is an important film production parameter. The infrared data required to make these determinations can be collected on a time scale that is much faster than the film deposition time, hence infrared emission is an ideal candidate for an in situ process monitor for dielectric thin-film production. C1 Univ New Mexico, Dept Chem, Albuquerque, NM 87131 USA. Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Niemczyk, TM (reprint author), Univ New Mexico, Dept Chem, Albuquerque, NM 87131 USA. NR 17 TC 4 Z9 4 U1 0 U2 1 PU SOC APPLIED SPECTROSCOPY PI FREDERICK PA 5320 SPECTRUM DRIVE SUITE C, FREDERICK, MD 21703 USA SN 0003-7028 J9 APPL SPECTROSC JI Appl. Spectrosc. PD AUG PY 2001 VL 55 IS 8 BP 1053 EP 1059 DI 10.1366/0003702011952956 PG 7 WC Instruments & Instrumentation; Spectroscopy SC Instruments & Instrumentation; Spectroscopy GA 473QG UT WOS:000171056400015 ER PT J AU Taylor, TN Lewis, GK Wayne, DM Fonseca, JC Dickerson, PG AF Taylor, TN Lewis, GK Wayne, DM Fonseca, JC Dickerson, PG TI The role of impurities in bubble formation during directed light processing of tantalum SO APPLIED SURFACE SCIENCE LA English DT Article DE tantalum; bubbles ID POTASSIUM BUBBLES; DOPED TUNGSTEN; DEPOSITION AB The utility of directed-light fabrication (DLF) as a method for the manufacture of refractory metal parts has been hampered by the formation of bubbles in the finished product. This study examines the connection between these bubbles and impurities found in several Ta feedstock powders. Bulk and surface impurities associated with the powders were determined using glow-discharge mass spectroscopy (GDMS), thermal desorption and X-ray photoelectron spectroscopy (XPS). A cylindrical part with a high bubble density was fabricated from the Ta powder using DLF and was subsequently fractured in vacuum. The exposed bubble surfaces were examined with Auger electron spectroscopy (AES) and secondary electron microscopy (SEM). Unlike the surrounding region, the bubble surfaces were coated with a K-rich layer. Potassium was an impurity found in the feedstock powder by GDMS. Due to incompletely understood process dynamics, a simple equilibrium model was used to examine the likelihood that gaseous K was trapped in the molten Ta to produce the bubble growth. The results suggest that another impurity, such as hydrogen, may have a primary role in the bubble formation. Analysis of recycled powder that had not been fused during DLF processing showed a decreased concentration of K, Na, F, H and water impurities, implying that some high-temperature purification of the feedstock powder might improve the quality of parts fabricated in this manner. (C) 2001 Elsevier Science B.V All rights reserved. C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Fonseca, JC (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. NR 18 TC 0 Z9 0 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0169-4332 J9 APPL SURF SCI JI Appl. Surf. Sci. PD AUG 1 PY 2001 VL 180 IS 1-2 BP 14 EP 26 DI 10.1016/S0169-4332(01)00304-X PG 13 WC Chemistry, Physical; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter SC Chemistry; Materials Science; Physics GA 462LL UT WOS:000170421500003 ER PT J AU Jenks, CJ Bloomer, TE Kramer, MJ Lograsso, TA Delaney, DW Ross, AR Sordelet, DJ Besser, MF Thiel, PA AF Jenks, CJ Bloomer, TE Kramer, MJ Lograsso, TA Delaney, DW Ross, AR Sordelet, DJ Besser, MF Thiel, PA TI Determination of Auger sensitivity factors for Al-rich quasicrystals SO APPLIED SURFACE SCIENCE LA English DT Article DE quasicrystals; Auger electron spectroscopy; surface composition ID ENERGY-ELECTRON DIFFRACTION; RAY PHOTOELECTRON-SPECTROSCOPY; PD-MN; SURFACE; ALLOYS; LEED; ALPDMN; PHASE; APPROXIMANTS; AL68PD23MN9 AB We discuss and compare approaches to using Auger data for semi-quantitative determination of surface compositions of Al-based quasicrystals. We have examined two quasicrystalline phases: icosahedral Al-Cu-Fe and Al-Pd-Mn. We find that sensitivity factors obtained from pure elemental standards lead to underestimation of concentrations by as much as a factor of 2.5 for the minor constituents, Fe and Mn, and to overestimation by as much as a factor of 1.2 for the major constituent, Al. Surprisingly, calibration with a crystalline phase close in composition to the quasicrystal does not necessarily lead to more accurate results. Auger analyses of fractured surfaces, which are then compared to bulk analyses, is the best option for sensitivity factor calibration. Even without absolute calibration of sensitivity factors, however, surface analysis is extremely useful for detection of secondary phases, and is superior to common bulk analysis methods. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Iowa State Univ, Ames Lab, Ames, IA 50011 USA. Iowa State Univ, Dept Chem, Ames, IA 50011 USA. Iowa State Univ, Dept Mat Sci, Ames, IA 50011 USA. RP Jenks, CJ (reprint author), Iowa State Univ, Ames Lab, 221 Spedding Hall, Ames, IA 50011 USA. EM cjenks@iastate.edu NR 51 TC 12 Z9 12 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0169-4332 J9 APPL SURF SCI JI Appl. Surf. Sci. PD AUG 1 PY 2001 VL 180 IS 1-2 BP 57 EP 64 DI 10.1016/S0169-4332(01)00326-9 PG 8 WC Chemistry, Physical; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter SC Chemistry; Materials Science; Physics GA 462LL UT WOS:000170421500007 ER PT J AU Kintner-Meyer, M Burns, M AF Kintner-Meyer, M Burns, M TI Energy-related information services SO ASHRAE JOURNAL LA English DT Article C1 Battelle Mem Inst, Pacific NW Div, Richland, WA 99352 USA. Hypertek Inc, N Potomac, MD USA. RP Kintner-Meyer, M (reprint author), Battelle Mem Inst, Pacific NW Div, Richland, WA 99352 USA. NR 14 TC 0 Z9 0 U1 0 U2 3 PU AMER SOC HEATING REFRIGERATING AIR-CONDITIONING ENG, INC, PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 USA SN 0001-2491 J9 ASHRAE J JI ASHRAE J. PD AUG PY 2001 VL 43 IS 8 BP 49 EP + PG 6 WC Thermodynamics; Construction & Building Technology; Engineering, Mechanical SC Thermodynamics; Construction & Building Technology; Engineering GA 463DG UT WOS:000170461100024 ER PT J AU Anderson, SF Fan, XH Richards, GT Schneider, DP Strauss, MA Vanden Berk, DE Gunn, JE Knapp, GR Schlegel, D Voges, W Yanny, B Bahcall, NA Bernardi, M Brinkmann, J Brunner, R Csabai, I Doi, M Fukugita, M Hennessy, GS Ivezic, Z Kunszt, PZ Lamb, DQ Loveday, J Lupton, RH McKay, TA Munn, JA Nichol, RC Szokoly, GP York, DC AF Anderson, SF Fan, XH Richards, GT Schneider, DP Strauss, MA Vanden Berk, DE Gunn, JE Knapp, GR Schlegel, D Voges, W Yanny, B Bahcall, NA Bernardi, M Brinkmann, J Brunner, R Csabai, I Doi, M Fukugita, M Hennessy, GS Ivezic, Z Kunszt, PZ Lamb, DQ Loveday, J Lupton, RH McKay, TA Munn, JA Nichol, RC Szokoly, GP York, DC TI High-redshift quasars found in Sloan Digital Sky Survey commissioning data. VI. Sloan digital sky survey spectrograph observations SO ASTRONOMICAL JOURNAL LA English DT Article DE early universe; quasars : general ID HOBBY-EBERLY TELESCOPE; LOW-RESOLUTION SPECTROGRAPH; SURVEY PHOTOMETRIC SYSTEM; MULTICOLOR DETECTION; LUMINOSITY FUNCTION; EQUATORIAL STRIPE; STELLAR OBJECTS; Z-GREATER-THAN-4; DISCOVERY; EMISSION AB We present data for over 100 high-redshift quasars found in approximate to 700 deg(2) by the Sloan Digital Sky Survey (SDSS), using automated selection algorithms applied to SDSS imaging data and with spectroscopic confirmation obtained during routine spectroscopic observations by the Sloan 2.5 m telescope. The SDSS spectra cover the wavelength range 3900-9200 Angstrom at a spectral resolution of 1800 and have AZ been obtained for 116 quasars with redshifts greater than 3.94; 92 of these objects were previously uncataloged, significantly increasing the current tally of published z > 4 quasars. The paper also reports observations of seven additional new z [4 quasars; all were selected from the SDSS imaging survey and spectroscopically confirmed with observations by the Apache Point Observatory's 3.5 m telescope or the Hobby-Eberly Telescope. The i' magnitudes of the quasars range from 18.03 to 20.68. Of the 99 new objects reported in this paper, 13 appear to be broad absorption line quasars. Five quasars, including one object at a redshift of 5.11, have 20 cm peak flux densities greater than 1 mJy. Two of the quasars, both at z approximate to 4.5, have very weak emission lines; one of these objects is a radio source. Nineteen of the newly discovered objects have redshifts above 4.6, and the maximum redshift is z = 5.41; among objects reported to date, the latter is the third highest redshift AGN and is penultimate in redshift among luminous quasars. C1 Univ Washington, Dept Astron, Seattle, WA 98195 USA. Inst Adv Study, Princeton, NJ 08540 USA. Penn State Univ, Dept Astron & Astrophys, Davey Lab 525, University Pk, PA 16802 USA. Princeton Univ Observ, Princeton, NJ 08544 USA. Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. Max Planck Inst Extraterr Phys, D-85741 Garching, Germany. Apache Point Observ, Sunspot, NM 88349 USA. CALTECH, Dept Astron, Pasadena, CA 91125 USA. Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA. Eotvos Lorand Univ, Dept Phys Complex Syst, H-1117 Budapest, Hungary. Univ Tokyo, Sch Sci, Dept Astron, Tokyo 1810015, Japan. Univ Tokyo, Sch Sci, Res Ctr Early Universe, Tokyo 1810015, Japan. Univ Tokyo, Inst Cosm Ray Res, Tokyo 1888588, Japan. USN Observ, Washington, DC 20392 USA. Univ Chicago, Ctr Astron & Astrophys, Chicago, IL 60637 USA. Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA. Univ Sussex, Ctr Astron, Brighton BN1 9QJ, E Sussex, England. Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA. USN Observ, Flagstaff Stn, Flagstaff, AZ 86002 USA. Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15232 USA. Astrophys Inst Potsdam, D-14482 Potsdam, Germany. RP Anderson, SF (reprint author), Univ Washington, Dept Astron, Box 351580, Seattle, WA 98195 USA. RI Csabai, Istvan/F-2455-2012; McKay, Timothy/C-1501-2009; OI McKay, Timothy/0000-0001-9036-6150; Kunszt, Peter/0000-0003-0933-4763; Csabai, Istvan/0000-0001-9232-9898 NR 45 TC 92 Z9 92 U1 0 U2 3 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 0004-6256 J9 ASTRON J JI Astron. J. PD AUG PY 2001 VL 122 IS 2 BP 503 EP 517 DI 10.1086/321168 PG 15 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 462PQ UT WOS:000170429300001 ER PT J AU Vanden Berk, DE Richards, GT Bauer, A Strauss, MA Schneider, DP Heckman, TM York, DG Hall, PB Fan, XH Knapp, GR Anderson, SF Annis, J Bahcall, NA Bernardi, M Briggs, JW Brinkmann, J Brunner, R Burles, S Carey, L Castander, FJ Connolly, AJ Crocker, JH Csabai, I Doi, M Finkbeiner, D Friedman, S Frieman, JA Fukugita, M Gunn, JE Hennessy, GS Ivezic, Z Kent, S Kunszt, PZ Lamb, DQ Leger, RF Long, DC Loveday, J Lupton, RH Meiksin, A Pier, JR Pope, A Rockosi, CM Schlegel, DJ Siegmund, WA Smee, S Snir, Y Stoughton, C Stubbs, C SubbaRao, M Szalay, AS Szokoly, GP Tremonti, C Uomoto, A Waddell, P Yanny, B Zheng, W AF Vanden Berk, DE Richards, GT Bauer, A Strauss, MA Schneider, DP Heckman, TM York, DG Hall, PB Fan, XH Knapp, GR Anderson, SF Annis, J Bahcall, NA Bernardi, M Briggs, JW Brinkmann, J Brunner, R Burles, S Carey, L Castander, FJ Connolly, AJ Crocker, JH Csabai, I Doi, M Finkbeiner, D Friedman, S Frieman, JA Fukugita, M Gunn, JE Hennessy, GS Ivezic, Z Kent, S Kunszt, PZ Lamb, DQ Leger, RF Long, DC Loveday, J Lupton, RH Meiksin, A Pier, JR Pope, A Rockosi, CM Schlegel, DJ Siegmund, WA Smee, S Snir, Y Stoughton, C Stubbs, C SubbaRao, M Szalay, AS Szokoly, GP Tremonti, C Uomoto, A Waddell, P Yanny, B Zheng, W TI Composite quasar spectra from the Sloan Digital Sky Survey SO ASTRONOMICAL JOURNAL LA English DT Article DE quasars : emission lines; quasars : general ID HIGH-REDSHIFT QUASARS; ACTIVE GALACTIC NUCLEI; SURVEY COMMISSIONING DATA; FE-II EMISSION; SURVEY PHOTOMETRIC SYSTEM; HOBBY-EBERLY TELESCOPE; NARROW-LINE REGION; BROAD EMISSION; QSO SPECTRA; RADIO GALAXIES AB We have created a variety of composite quasar spectra using a homogeneous data set of over 2200 spectra from the Sloan Digital Sky Survey (SDSS). The quasar sample spans a redshift range of 0.044 less than or equal to z less than or equal to 4.789 and an absolute r' magnitude range of -18.0 to -26.5. The input spectra cover an observed wavelength range of 3800-9200 Angstrom at a resolution of 1800. The median composite covers a rest-wavelength range from 800 to 8555 Angstrom and reaches a peak signal-to-noise ratio of over 300 per 1 Angstrom resolution element in the rest frame. We have identified over 80 emission-line features in the spectrum. Emission-line shifts relative to nominal laboratory wavelengths are seen for many of the ionic species. Peak shifts of the broad permitted and semiforbidden lines are strongly correlated with ionization energy, as previously suggested, but we find that the narrow forbidden lines are also shifted by amounts that are strongly correlated with ionization energy. The magnitude of the forbidden line shifts is less than or similar to 100 km s(-1), compared with shifts of up to 550 km s(-1) for some of the permitted and semiforbidden lines. At wavelengths longer than the Ly alpha emission, the continuum of the geometric mean composite is well fitted by two power laws, with a break at approximate to 5000 Angstrom. The frequency power-law index, alpha (v), is -0.44 from approximate to 1300 to 5000 and -2.45 redward of approximate to 5000 The abrupt change in slope can be accounted for partly by host-galaxy contamination at low redshift. Stellar absorption lines, including higher order Balmer lines, seen in the composites suggest that young or intermediate-age stars make a significant contribution to the light of the host galaxies. Most of the spectrum is populated by blended emission lines, especially in the range 1500-3500 Angstrom, which can make the estimation of quasar continua highly uncertain unless large ranges in wavelength are observed. An electronic table of the median quasar template is available. C1 Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. Penn State Univ, Dept Astron & Astrophys, Davey Lab 525, University Pk, PA 16802 USA. Univ Cincinnati, Dept Phys, Cincinnati, OH 45221 USA. Princeton Univ Observ, Princeton, NJ 08544 USA. Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA. Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA. Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA. Pontificia Univ Catolica Chile, Fac Fis, Dept Astron & Astrofis, Santiago 22, Chile. Inst Adv Study, Princeton, NJ 08540 USA. Univ Washington, Dept Astron, Seattle, WA 98195 USA. Apache Point Observ, Sunspot, NM 88349 USA. CALTECH, Dept Astron, Pasadena, CA 91125 USA. Observ Midi Pyrenees, F-31400 Toulouse, France. Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA. Eotvos Lorand Univ, Dept Phys Complex Syst, H-1117 Budapest, Hungary. Univ Tokyo, Sch Sci, Dept Astron, Bunkyo Ku, Tokyo 1130033, Japan. Univ Tokyo, Sch Sci, Res Ctr Early Universe, Bunkyo Ku, Tokyo 1130033, Japan. Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA. Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan. USN Observ, Washington, DC 20392 USA. Univ Sussex, Ctr Astron, Brighton BN1 9QJ, E Sussex, England. Royal Observ, Edinburgh EH9 3HJ, Midlothian, Scotland. Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15232 USA. USN Observ, Flagstaff Stn, Flagstaff, AZ 86002 USA. Rensselaer Polytech Inst, Dept Phys, Troy, NY 12180 USA. Univ Maryland, Dept Astron, College Pk, MD 20742 USA. RP Vanden Berk, DE (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. RI Stubbs, Christopher/C-2829-2012; Csabai, Istvan/F-2455-2012; OI Stubbs, Christopher/0000-0003-0347-1724; Meiksin, Avery/0000-0002-5451-9057; Kunszt, Peter/0000-0003-0933-4763; Csabai, Istvan/0000-0001-9232-9898 NR 91 TC 929 Z9 930 U1 3 U2 21 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 0004-6256 J9 ASTRON J JI Astron. J. PD AUG PY 2001 VL 122 IS 2 BP 549 EP 564 DI 10.1086/321167 PG 16 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 462PQ UT WOS:000170429300004 ER PT J AU Knop, RA Armus, L Matthews, K Murphy, TW Soifer, BT AF Knop, RA Armus, L Matthews, K Murphy, TW Soifer, BT TI Spatially resolved near-infrared spectroscopy of the Seyfert 2 galaxies Markarian 1066, NGC 2110, NGC 4388, and Markarian 3 SO ASTRONOMICAL JOURNAL LA English DT Article DE galaxies : active ID FE-II EMISSION; ACTIVE GALAXIES; EXTENDED GAS; STARBURST GALAXIES; RADIO STRUCTURES; VIRGO CLUSTER; LINE; NGC-4388; NGC-2110; KINEMATICS AB We present near-infrared spectra with resolutions of lambda/Delta lambda similar to 1200 in the emission lines Pa beta, [Fe II] (lambda = 1.2567 mum), Br gamma, and H-2 v = 1-0 S(1) of the nuclei and circumnuclear regions of the four Seyfert 2 galaxies Mk 1066, NGC 2110, NGC 4388, and Mk 3. All of these galaxies show strong near-infrared line emission that is detected at radii several times the spatial resolution, corresponding to projected physical scales of 0.07 to 0.7 kpc. Velocity gradients are detected in these nuclei, as are spatial variations in line profiles and flux ratios. We compare the spatial and velocity distribution of the line emission to previously observed optical line and radio emission. The evidence indicates that the [Fe II] emission is associated with the Seyfert activity in the galaxies. Our data are consistent with X-ray heating being responsible for most of the [Fe II] emission, although differences in [Fe II] and Pa beta line profiles associated with radio emission suggests that the [Fe II] emission is enhanced by fast shocks associated with radio outflows. The H-2 emission is not as strongly associated with outflows or ionization cones as is the emission in other lines, but rather appears to be primarily associated with the disk of the galaxy. C1 CALTECH, Palomar Observ, Pasadena, CA 91125 USA. RP Knop, RA (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, MS 50-232,1 Cyclotron Rd, Berkeley, CA 94720 USA. OI Armus, Lee/0000-0003-3498-2973 NR 53 TC 19 Z9 19 U1 0 U2 1 PU UNIV CHICAGO PRESS PI CHICAGO PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA SN 0004-6256 J9 ASTRON J JI Astron. J. PD AUG PY 2001 VL 122 IS 2 BP 764 EP 791 DI 10.1086/322068 PG 28 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 462PQ UT WOS:000170429300018 ER PT J AU Cottam, J Sako, M Kahn, SM Paerels, F Liedahl, DA AF Cottam, J Sako, M Kahn, SM Paerels, F Liedahl, DA TI High-resolution X-ray spectroscopy of the accretion disk corona source 4U 1822-37 SO ASTROPHYSICAL JOURNAL LA English DT Article DE accretion, accretion disks; binaries : eclipsing; stars : individual (4U 1822-37); X-rays : binaries ID BINARIES; STREAM; X-1822-371; MODULATION AB We present a preliminary analysis of the X-ray spectrum of the accretion disk corona source 4U 1822-37 obtained with the High-Energy Transmission Grating Spectrometer on board the Chandra X-Ray Observatory. We detect discrete emission lines from photoionized iron, silicon, magnesium, neon, and oxygen as well as a bright iron fluorescent line. Phase-resolved spectroscopy suggests that the recombination emission comes from an X-ray-illuminated bulge located at the predicted point of impact between the disk and the accretion stream. The fluorescent emission originates in an extended region on the disk that is illuminated by light scattered from the corona. C1 Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA. Columbia Univ, Dept Phys, New York, NY 10027 USA. Lawrence Livermore Natl Lab, Dept Phys & Adv Technol, Livermore, CA 94550 USA. RP Cottam, J (reprint author), Columbia Univ, Columbia Astrophys Lab, 550 W 120th St, New York, NY 10027 USA. NR 20 TC 18 Z9 18 U1 1 U2 5 PU UNIV CHICAGO PRESS PI CHICAGO PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD AUG PY 2001 VL 557 IS 2 BP L101 EP L104 DI 10.1086/323343 PN 2 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 467LM UT WOS:000170704700006 ER PT J AU Wren, J Akerlof, C Balsano, R Bloch, J Borozdin, K Casperson, D Gisler, G Kehoe, R Lee, BC Marshall, S McKay, T Priedhorsky, W Rykoff, E Smith, D Trudolyubov, S Vestrand, WT AF Wren, J Akerlof, C Balsano, R Bloch, J Borozdin, K Casperson, D Gisler, G Kehoe, R Lee, BC Marshall, S McKay, T Priedhorsky, W Rykoff, E Smith, D Trudolyubov, S Vestrand, WT TI Observations of the optical counterpart to XTE J1118+480 during outburst by the Robotic Optical Transient Search Experiment I telescope SO ASTROPHYSICAL JOURNAL LA English DT Article DE novae, cataclysmic variables; stars : individual (XTE J1118+480); X-rays : bursts On-line material : color figure ID X-RAY TRANSIENTS; BLACK-HOLES; ACCRETION DISKS; BINARY-SYSTEMS; GRO J1655-40; DISCOVERY; STATE; MODEL AB The X-ray nova XTE J1118 + 480 exhibited two outbursts in the early part of 2000. As detected by the Rossi X-Ray Timing Explorer (RXTE), the first outburst began in early January and the second began in early March. Routine imaging of the northern sky by the Robotic Optical Transient Search Experiment (ROTSE) shows the optical counterpart to XTE J1118 + 480 during both outbursts. These data include over 60 epochs from January to June 2000. A search of the ROTSE data archives reveal no previous optical outbursts of this source in selected data between 1998 April and 2000 January. While the X-ray-to-optical flux ratio of XTE J1118 + 480 was low during both outbursts, we suggest that they were full X-ray novae and not minioutbursts based on comparison with similar sources. The ROTSE measurements taken during the 2000 March outburst also indicate a rapid rise in the optical flux that preceded the X-ray emission measured by the RXTE by approximately 10 days. Using these results, we estimate a preoutburst accretion disk inner truncation radius of similar to1.2 x 10(4) Schwarzschild radii. C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA. Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Wren, J (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. RI McKay, Timothy/C-1501-2009; OI McKay, Timothy/0000-0001-9036-6150; Priedhorsky, William/0000-0003-0295-9138 NR 29 TC 6 Z9 6 U1 0 U2 1 PU UNIV CHICAGO PRESS PI CHICAGO PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD AUG PY 2001 VL 557 IS 2 BP L97 EP L100 DI 10.1086/323040 PN 2 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 467LM UT WOS:000170704700005 ER PT J AU Smith, RK Brickhouse, NS Liedahl, DA Raymond, JC AF Smith, RK Brickhouse, NS Liedahl, DA Raymond, JC TI Collisional plasma models with APEC/APED: Emission-line diagnostics of hydrogen-like and helium-like ions SO ASTROPHYSICAL JOURNAL LA English DT Article DE atomic data; atomic processes; plasmas; radiation mechanisms : thermal; X-rays : general ID HE-LIKE IONS; PHOTOIONIZATION CROSS-SECTIONS; ISOELECTRONIC SEQUENCE; RATE COEFFICIENTS; ATOMIC DATABASE; ELECTRON-IMPACT; EXCITATION; SPECTRA; RADIATION; ELEMENTS AB New X-ray observatories (Chandra and XHM-Newton) are providing a wealth of high-resolution X-ray spectra in which hydrogen- and helium-like ions are usually strong features. We present results from a new collisional-radiative plasma code, the Astrophysical Plasma Emission Code (APEC), which uses atomic data in the companion Astrophysical Plasma Emission Database (APED) to calculate spectral models for hot plasmas. APED contains the requisite atomic data such as collisional and radiative rates, recombination cross sections, dielectronic recombination rates, and satellite line wavelengths. We compare the APEC results to other plasma codes for hydrogen- and helium-like diagnostics and test the sensitivity of our results to the number of levels included in the models. We find that dielectronic recombination with hydrogen-like ions into high (n = 6-10) principal quantum numbers affects some helium-like line ratios from low-lying (n = 2) transitions. C1 Harvard Smithsonian Ctr Astrophys, High Energy Astrophys Div, Cambridge, MA 02138 USA. Lawrence Livermore Natl Lab, Dept Phys & Adv Technol, Livermore, CA 94550 USA. Harvard Smithsonian Ctr Astrophys, Solar & Steller Phys Div, Cambridge, MA 02138 USA. RP Smith, RK (reprint author), Harvard Smithsonian Ctr Astrophys, High Energy Astrophys Div, 60 Garden St, Cambridge, MA 02138 USA. OI Brickhouse, Nancy/0000-0002-8704-4473 NR 38 TC 746 Z9 747 U1 5 U2 19 PU UNIV CHICAGO PRESS PI CHICAGO PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD AUG 1 PY 2001 VL 556 IS 2 BP L91 EP L95 DI 10.1086/322992 PN 2 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 462ND UT WOS:000170425400007 ER PT J AU Becker, RH White, RL Gregg, MD Laurent-Muehleisen, SA Brotherton, MS Impey, CD Chaffee, FH Richards, GT Helfand, DJ Lacy, M Courbin, F Proctor, DD AF Becker, RH White, RL Gregg, MD Laurent-Muehleisen, SA Brotherton, MS Impey, CD Chaffee, FH Richards, GT Helfand, DJ Lacy, M Courbin, F Proctor, DD TI The FIRST Bright Quasar Survey. III. The South Galactic cap SO ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES LA English DT Article DE BL Lacertae objects : general; galaxies : active; galaxies : starburst; quasars : general; radio continuum : galaxies; surveys ID BROAD-ABSORPTION-LINE; 1ST SURVEY; EMISSION; CATALOG; SKY; QSO AB We present the results of an extension of the FIRST Bright Quasar Survey (FBQS) to the South Galactic cap, and to a fainter optical magnitude limit. Radio source counterparts with SERC R magnitudes brighter than 18.9 which meet the other FBQS criteria are included. We supplement this list with a modest number of additional objects to test our completeness for quasars with extended radio morphologies. The survey covers 589 deg(2) in two equatorial strips in the southern cap. We have obtained spectra for 86% of the 522 candidates and find 321 radio-selected quasars of which 264 are reported here for the first time. A comparison of this fainter sample with the FBQS sample shows the two to be generally similar. Fourteen new broad absorption line (BAL) quasars are included in this sample. When combined with the previously identified BAL quasars in our earlier papers, we can discern a break in the frequency of BAL quasars with radio loudness, namely that the relative number of high-ionization BAL quasars drops by a factor of 4 for quasars with a radio-loudness parameter R* >100. C1 Univ Calif Davis, Dept Phys, Davis, CA 95616 USA. Lawrence Livermore Natl Lab, IGPP, Livermore, CA 94550 USA. Space Telescope Sci Inst, Baltimore, MD 21218 USA. Univ Arizona, Steward Observ, Tucson, AZ 85721 USA. Univ Chicago, Ctr Astron & Astrophys, Chicago, IL 60637 USA. Columbia Univ, Dept Astron, New York, NY 10027 USA. Univ Cambridge, Inst Astron, Cambridge CB2 1TN, England. Pontificia Univ Catolica Chile, Santiago De Compostela, Spain. RP Becker, RH (reprint author), Univ Calif Davis, Dept Phys, Davis, CA 95616 USA. EM rlw@stsci.edu NR 19 TC 80 Z9 81 U1 0 U2 1 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 0067-0049 J9 ASTROPHYS J SUPPL S JI Astrophys. J. Suppl. Ser. PD AUG PY 2001 VL 135 IS 2 BP 227 EP 262 DI 10.1086/321798 PG 36 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 460TC UT WOS:000170323800006 ER PT J AU Smith, WS Reisner, JM Kao, CYJ AF Smith, WS Reisner, JM Kao, CYJ TI Simulations of flow around a cubical building: comparison with towing-tank data and assessment of radiatively induced thermal effects SO ATMOSPHERIC ENVIRONMENT LA English DT Article DE large eddy simulation; dispersion; transport; urban; building; thermal effects ID 3-DIMENSIONAL NUMERICAL-SIMULATION; BOUNDARY-LAYER; AIR-FLOW; MODEL; DISPERSION; TURBULENCE; CLOUDS AB A three-dimensional (3-D) computational fluid dynamics (CFD) model, coupled with a meteorological radiation and surface physics package, is used to model the mean flow field and tracer dispersion in the vicinity of an idealized cubical building. We first compare the simulations with earlier numerical studies as well as towing-tank laboratory experiments, where radiation effects were not included. Our simulations capture most of the features revealed by the towing-tank data, including the variation of the flow reattachment point as a function of Froude number and the induction of a prominent lee wave in the low Froude number regime. The simulated tracer concentration also compares very favorably with the data. We then assess the thermal effects due to radiative heating on the ground and building including shading by the building, on the mean flow and tracer dispersion. Our simulations show that convergence within and beyond the cavity zone causes a substantial lofting of the air mass downstream from the building. This lofting results from the combination of thermal heating of the ground and building roof, and vortex circulation associated with the horseshoe eddy along the lateral sides of the building. The specific effect of shading on the flow field is isolated by comparing simulations for which the radiative heating and shading patterns are kept constant, but the environmental wind direction is altered. It is found that the shading exerts local cooling, which can be combined into the overall thermodynamic interaction, described above, to effectively alter the circulation downstream from the building. (C) 2001 Elsevier Science Ltd. All rights reserved. C1 Los Alamos Natl Lab, Div Earth & Environm Sci, Atmospher & Climate Sci Grp EES8, Los Alamos, NM 87545 USA. RP Smith, WS (reprint author), Los Alamos Natl Lab, Div Earth & Environm Sci, Atmospher & Climate Sci Grp EES8, Los Alamos, NM 87545 USA. NR 26 TC 21 Z9 23 U1 0 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1352-2310 J9 ATMOS ENVIRON JI Atmos. Environ. PD AUG PY 2001 VL 35 IS 22 BP 3811 EP 3821 DI 10.1016/S1352-2310(01)00177-7 PG 11 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA 462TQ UT WOS:000170436200007 ER PT J AU Engle, MA Gustin, MS Zhang, H AF Engle, MA Gustin, MS Zhang, H TI Quantifying natural source mercury emissions from the Ivanhoe Mining District, north-central Nevada, USA SO ATMOSPHERIC ENVIRONMENT LA English DT Article DE mercury; atmospheric mercury; mercury emission; natural sources; atmosphere-surface exchange ID ELEMENTAL MERCURY; VAPOR; SOILS; FLUX; TEMPERATURE; SORPTION; STORMS AB In order to assess the importance of mercury emissions from naturally enriched sources relative to anthropogenic point sources, data must be collected that characterizes mercury emissions from representative areas and quantifies the influence of various environmental parameters that control emissions. With this information, we will be able to scale up natural source emissions to regional areas. In this study in situ mercury emission measurements were used, along with data from laboratory studies and statistical analysis, to scale up mercury emissions for the naturally enriched Ivanhoe Mining District, Nevada. Results from stepwise multi-variate regression analysis indicated that lithology, soil mercury concentration, and distance from the nearest fault were the most important factors controlling mercury flux. Field and lab experiments demonstrated that light and precipitation enhanced mercury emissions from alluvium with background mercury concentrations. Diel mercury emissions followed a Gaussian distribution. The Gaussian distribution was used to calculate an average daily emission for each lithologic unit, which were then used to calculate an average flux for the entire area of 17.1 ng Hg m(-2) h(-1). An annual emission of similar to8.7 x 10(4) g of mercury to the atmosphere was calculated for the 586 km(2) area. The bulk of the Hg released into the atmosphere from the district (similar to 89%) is from naturally enriched non-point sources and similar to 11% is emitted from areas of anthropogenic disturbance where mercury was mined. Mercury emissions from this area exceed the natural emission factor applied to mercury rich belts of the world (1.5 ng m(-2) h(-1)) by an order of magnitude. (C) 2001 Elsevier Science Ltd. All rights reserved. C1 Univ Nevada, Dept Environm & Resource Sci 370, Reno, NV 89557 USA. Univ Nevada, Program Hydrol Sci 172, Reno, NV 89557 USA. Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. RP Gustin, MS (reprint author), Univ Nevada, Dept Environm & Resource Sci 370, Reno, NV 89557 USA. OI Engle, Mark/0000-0001-5258-7374 NR 30 TC 107 Z9 118 U1 1 U2 21 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1352-2310 J9 ATMOS ENVIRON JI Atmos. Environ. PD AUG PY 2001 VL 35 IS 23 BP 3987 EP 3997 DI 10.1016/S1352-2310(01)00184-4 PG 11 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA 462TZ UT WOS:000170437000008 ER PT J AU Lindberg, SE Wallschlager, D Prestbo, EM Bloom, NS Price, J Reinhart, D AF Lindberg, SE Wallschlager, D Prestbo, EM Bloom, NS Price, J Reinhart, D TI Methylated mercury species in municipal waste landfill gas sampled in Florida, USA SO ATMOSPHERIC ENVIRONMENT LA English DT Article ID METHYLMERCURY; MECHANISMS; DEPOSITION AB Mercury-bearing material has been placed in municipal landfills from a wide array of sources including fluorescent lights, batteries, electrical switches, thermometers, and general waste. Despite its known volatility, persistence, and toxicity in the environment, the fate of mercury in landfills has not been widely studied. The nature of landfills designed to reduce waste through generation of methane by anaerobic bacteria suggests the possibility that these systems might also serve as bioreactors for the production of methylated mercury compounds. The toxicity of such species mandates the need to determine if they are emitted in municipal landfill gas (LFG). In a previous study, we had measured levels of total gaseous mercury (TGM) in LFG in the mug/m(3) range in two Florida landfills, and elevated levels of monomethyl mercury (MMM) were identified in LFG condensate, suggesting the possible existence of gaseous organic Hg compounds in LFG. In the current study, we measured TGM, Hg-0, and methylated mercury compounds directly in LFG from another Florida landfill. Again, TGM was in the mug/m(3) range, MMM was found in condensate, and this time we positively identified dimethyl mercury (DMM) in the LGF in the mug/m(3) range. These results identify landfills as a possible anthropogenic source of DMM emissions to air, and may help explain the reports of MMM in continental rainfall. Published by Elsevier Science Ltd. C1 Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. Frontier Geosci, Seattle, WA USA. Florida Dept Environm Protect, Tallahassee, FL USA. Univ Cent Florida, Orlando, FL 32816 USA. RP Lindberg, SE (reprint author), Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA. NR 21 TC 51 Z9 61 U1 3 U2 11 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1352-2310 J9 ATMOS ENVIRON JI Atmos. Environ. PD AUG PY 2001 VL 35 IS 23 BP 4011 EP 4015 DI 10.1016/S1352-2310(01)00176-5 PG 5 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA 462TZ UT WOS:000170437000010 ER PT J AU Lins, RD Straatsma, TP AF Lins, RD Straatsma, TP TI Computer simulation of the rough lipopolysaccharide membrane of Pseudomonas aeruginosa SO BIOPHYSICAL JOURNAL LA English DT Article ID CRYSTALLINE IRON(III) OXIDES; B-BAND LIPOPOLYSACCHARIDE; INTEGRASE CATALYTIC DOMAIN; MICROBIAL REDUCTION; ESSENTIAL DYNAMICS; ESCHERICHIA-COLI; SEROTYPE O5; A-BAND; MOLECULAR-DYNAMICS; STRAIN PAO1 AB Lipopolysaccharides (LPSs) form the major constituent of the outer membrane of Gram-negative bacteria, and are believed to play a key role in processes that govern microbial metal binding, microbial adsorption to mineral surfaces, and microbe-mediated oxidation/reduction reactions at the bacterial exterior surface. A computational modeling capability is being developed for the study of geochemical reactions at the outer bacterial envelope of Gram-negative bacteria. A molecular model for the rough LPS of Pseudomonas aeruginosa has been designed based on experimentally determined structural information. An electrostatic model was developed based on Hartree-Fock SCF calculations of the complete LPS molecule to obtain partial atomic charges. The exterior of the bacterial membrane was assembled by replication of a single LPS molecule and a single phospholipid molecule. Molecular dynamics simulations of the rough LPS membrane of P. aeruginosa were carried out and trajectories were analyzed for the energetic and structural factors that determine the role of LPS in processes at the cell surface. C1 Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. RP Straatsma, TP (reprint author), Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. RI Lins, Roberto/J-7511-2012 OI Lins, Roberto/0000-0002-3983-8025 NR 43 TC 77 Z9 77 U1 3 U2 13 PU BIOPHYSICAL SOCIETY PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD AUG PY 2001 VL 81 IS 2 BP 1037 EP 1046 PG 10 WC Biophysics SC Biophysics GA 457TB UT WOS:000170152000036 PM 11463645 ER PT J AU Blondal, T Thorbjarnardottir, SH Kieleczawa, J Hjorleifsdottir, S Kristjansson, JK Einarsson, JM Eggertsson, G AF Blondal, T Thorbjarnardottir, SH Kieleczawa, J Hjorleifsdottir, S Kristjansson, JK Einarsson, JM Eggertsson, G TI Cloning, sequence analysis and functional characterization of DNA polymerase I from the thermophilic eubacterium Rhodothermus marinus SO BIOTECHNOLOGY AND APPLIED BIOCHEMISTRY LA English DT Article DE dideoxynucleotide incorporation; DNA sequencing; thermostabilty ID ESCHERICHIA-COLI; EXONUCLEASE ACTIVITY; THERMUS-AQUATICUS; CHAIN-REACTION; 3'-5' EXONUCLEASE; KLENOW FRAGMENT; AMINO-ACID; SP-NOV; GENE; PURIFICATION AB A gene encoding a DNA polymerase I from the thermophilic eubacterium Rhodothermus marinus was identified. The gene was cloned, sequenced and expressed in Escherichia coli. The gene is 2772 bp long and encodes a protein of 924 amino acids with a calculated molecular mass of 104.8 kDa. Sequence analysis showed that a generally conserved Phe residue in the O-helix is substituted by a Tyr (position 756) in the R. marinus enzyme. A Tyr in this position decreases the discrimination against dideoxynucleoticles which is a major advantage in DNA sequencing. The protein was purified, characterized and showed to contain specific DNA-polymerization activity of 3 100 units/mg of protein, 5 ' --> 3 ' exonuclease activity and a 3 ' --> 5 ' proofreading activity. Its optimum activity was at 55 degreesC and it had a half-life of 2 min at 90 degreesC. A truncated form of the enzyme lacking the 5 ' --> 3 ' exonuclease domain was also expressed in E. coli. It had a specific DNA-polymerization activity of 5000 units/mg of protein and lacked the 5 ' --> 3 ' exonuclease activity. Its optimum activity was at 65 degreesC and it had a half-life of 11 min at 90 degreesC. It was usable for DNA sequencing. This is the first thermostable DNA polymerase described with the O-helix Phe --> Tyr substitution. C1 Univ Iceland, Inst Biol, IS-108 Reykjavik, Iceland. Brookhaven Natl Lab, Dept Biol, Long Isl City, NY USA. Technol Inst Iceland, Dept Biotechnol, IS-110 Reykjavik, Iceland. GENIS, IS-101 Reykjavik, Iceland. RP Eggertsson, G (reprint author), Univ Iceland, Inst Biol, Grensasvegur 12, IS-108 Reykjavik, Iceland. NR 46 TC 6 Z9 7 U1 0 U2 1 PU PORTLAND PRESS PI LONDON PA 59 PORTLAND PLACE, LONDON W1N 3AJ, ENGLAND SN 0885-4513 J9 BIOTECHNOL APPL BIOC JI Biotechnol. Appl. Biochem. PD AUG PY 2001 VL 34 BP 37 EP 45 PN 1 PG 9 WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 467CY UT WOS:000170684000007 PM 11483153 ER PT J AU Song, SR Jones, KW Lindquist, WB Dowd, BA Sahagian, DL AF Song, SR Jones, KW Lindquist, WB Dowd, BA Sahagian, DL TI Synchrotron X-ray computed microtomography: studies on vesiculated basaltic rocks SO BULLETIN OF VOLCANOLOGY LA English DT Article DE volcanology; image analysis; tomography; vesicularity ID MOUNT-ST-HELENS; VESICLE-DISTRIBUTION PATTERNS; MAGMA FRAGMENTATION; BUBBLE-GROWTH; SIZE DISTRIBUTIONS; LAVA FLOWS; DYNAMICS; ERUPTION; TOMOGRAPHY; COALESCENCE AB Synchrotron X-ray computed microtomography (CMT) was applied to five basalt samples from different locations in order to determine the microgeometrical structures and physical properties of vesicles. Two vesiculated basaltic lavas and one calcite-filled vesiculated basaltic lava were collected from the Lesotho Highland, South Africa, and two basaltic scoria tephra were taken from the Lungkuan Volcano Group in northeast China. They were examined with CMT on the X27C beam line of the Brookhaven National Synchrotron Light Source. The voxel size varied from 10 to 20 mum depending on the chosen field of view of the tomographic instrument. A fast-filtered back-transform (FFBT) algorithm was employed in the tomographic reconstruction. A 3D image geometry analysis package was used to measure the vesicularity, specific surface area and interconnectivity of the vesicles. The results of the analyses showed that the bubbles have roughly spheroidal forms of different sizes. Vesicularity ranged from 45% for lavas to 80% for scoria. At least 90% of the vesicles are interconnected. Specific surface area was determined both by counting voxel faces and by use of two-point correlation functions. C1 Natl Taiwan Univ, Dept Geosci, Taipei 10764, Taiwan. Brookhaven Natl Lab, Dept Appl Sci, Upton, NY 11973 USA. Univ New Hampshire, Dept Earth Sci, Inst Earth Oceans & Space, Durham, NH 03824 USA. RP Song, SR (reprint author), Natl Taiwan Univ, Dept Geosci, 245 Choushan Rd, Taipei 10764, Taiwan. OI Song, Sheng-Rong/0000-0001-5428-4318 NR 63 TC 40 Z9 40 U1 0 U2 8 PU SPRINGER-VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 USA SN 0258-8900 J9 B VOLCANOL JI Bull. Volcanol. PD AUG PY 2001 VL 63 IS 4 BP 252 EP 263 DI 10.1007/s004450100141 PG 12 WC Geosciences, Multidisciplinary SC Geology GA 467DD UT WOS:000170684500003 ER PT J AU Lager, GA Swayze, GA Loong, CK Rotella, FJ Richardson, JW Stoffregen, RE AF Lager, GA Swayze, GA Loong, CK Rotella, FJ Richardson, JW Stoffregen, RE TI Neutron spectroscopic study of synthetic alunite and oxonium-substituted alunite SO CANADIAN MINERALOGIST LA English DT Article DE alunite; inelastic neutron scattering; crystal structure; oxonium ion ID CRYSTAL-STRUCTURE; DIFFRACTION; DECOMPOSITION; REFINEMENT; MINERALS; SULFATE AB Synthetic, polycrystalline samples of alunite [K(0.88)(H(3)O)(0.12)Al(2.64)(SO(4))(2)(OH)(4.92)(H(2)O)(1.08)] and oxonium-substituted alunite [H(3)OAl(2.87)(SO(4))(2)(OH)(5.61)(H(2)O)(0.39)] have been investigated using incoherent, inelastic neutron-scattering (IINS) methods in order to determine the nature of the non-OH "H(2)O". IINS measurements were made on non-deuterated samples at 20 K using the HRMECS chopper spectrometer with 250 and 600 meV incident energies. Alunite and oxonium-substituted alunite exhibit Similar spectral features over the energy range of 120-550 meV, where assignments for local vibrations can be made based on the presence of OH and H(2)O groups. Salient differences in the intensities and positions of the observed low-energy vibrational bands reflect the effects of chemical substitution on the structural environment ofthe monovalent cation site and neighboring Al and OH sites in the framework. C1 Univ Louisville, Dept Geog & Geosci, Louisville, KY 40292 USA. US Geol Survey, Denver Fed Ctr, Lakewood, CO 80225 USA. Argonne Natl Lab, Div Intense Pulsed Neutron Source, Argonne, IL 60439 USA. AWK Consulting Engineers, Turtle Creek, PA 15145 USA. RP Lager, GA (reprint author), Univ Louisville, Dept Geog & Geosci, Louisville, KY 40292 USA. EM galager@louisville.edu NR 29 TC 16 Z9 16 U1 2 U2 3 PU MINERALOGICAL ASSOC CANADA PI OTTAWA PA PO BOX 78087, MERILINE POSTAL OUTLET, 1460 MERIVALE RD, OTTAWA, ONTARIO K2E 1B1, CANADA SN 0008-4476 J9 CAN MINERAL JI Can. Mineral. PD AUG PY 2001 VL 39 BP 1131 EP 1138 DI 10.2113/gscanmin.39.4.1131 PN 4 PG 8 WC Mineralogy SC Mineralogy GA 487DM UT WOS:000171858400016 ER PT J AU Zhong, LT Manzi, A Skowronski, E Notterpek, L Fluharty, AL Faull, KF Masada, I Rabizadeh, S Varsanyi-Nagy, M Ruan, YL Oh, JD Butcher, LL Bredesen, DE AF Zhong, LT Manzi, A Skowronski, E Notterpek, L Fluharty, AL Faull, KF Masada, I Rabizadeh, S Varsanyi-Nagy, M Ruan, YL Oh, JD Butcher, LL Bredesen, DE TI A monoclonal antibody that induces neuronal apoptosis binds a metastasis marker SO CANCER RESEARCH LA English DT Article ID NERVE GROWTH-FACTOR; CELL-DEATH; ACIDIC SPHINGOMYELINASE; GD3 GANGLIOSIDE; GENE-TRANSFER; NEURAL CELLS; CERAMIDE; INDUCTION; RECEPTOR; LINE AB The cell surface molecules controlling apoptosis in cortical neurons are largely unknown. A monoclonal antibody was derived that induces cultured neocortical neurons to undergo apoptosis. A Fab fragment of the antibody, however, lacked the ability to induce cell death. The antigen was purified, and characterized by compositional analysis, fast atom bo bardment (FAB) mass spectrometry, sequential exoglycosidase treatments, methylation analysis, and H-1-nuclear magnetic resonance spectroscopy, proving to be isoglobotetraosylceramide (IsoGb4). IsoGb4 has been shown previously to be a metastasis marker, antibodies against which block metastases in a mammary adenocarcinoma model (S. A. Carlsen et al., Cancer Res., 53: 2906-2911, 1993). Addition of the purified antigen to cells lacking this glycolipid demonstrated that it is capable of functioning as a portable apoptosis-transducing molecule. Intracellular ceramide levels were increased after the treatment with the apoptosis-inducing antibody, but the membrane sphingomyelin level remained unchanged. Fumonisin B1 inhibited both the ceramide increase and the apoptosis induced via IsoGb4, which indicated that the ceramide synthase pathway is likely to be involved in apoptosis induction by IsoGb4. C1 Buck Inst Age Res, Novato, CA 94945 USA. Univ Calif Los Angeles, Interdepartmental Program Neurosci, Los Angeles, CA 90024 USA. Univ Calif Los Angeles, Mental Retardat Res Ctr, Los Angeles, CA 90024 USA. Univ Calif Los Angeles, Dept Psychiat & Biobehav Sci, Los Angeles, CA 90024 USA. Univ Calif Los Angeles, Inst Neuropsychiat, Los Angeles, CA 90024 USA. Burnham Inst, Program Aging, La Jolla, CA 92037 USA. Univ Calif San Diego, Ctr Canc, Glycobiol Program, La Jolla, CA 92093 USA. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. Stanford Univ, Med Ctr, Dept Neurobiol, Stanford, CA 94305 USA. Glyko Inc, Novato, CA 94949 USA. VivoRx Inc, Santa Monica, CA 90404 USA. Univ Calif San Francisco, Biomed Sci Grad Program, San Francisco, CA 94143 USA. Univ Calif Los Angeles, Dept Psychol, Los Angeles, CA 90095 USA. RP Bredesen, DE (reprint author), Buck Inst Age Res, 8001 Redwood Blvd, Novato, CA 94945 USA. FU NINDS NIH HHS [T32-NS07356, NS33376] NR 46 TC 1 Z9 1 U1 0 U2 0 PU AMER ASSOC CANCER RESEARCH PI BIRMINGHAM PA PO BOX 11806, BIRMINGHAM, AL 35202 USA SN 0008-5472 J9 CANCER RES JI Cancer Res. PD AUG 1 PY 2001 VL 61 IS 15 BP 5741 EP 5748 PG 8 WC Oncology SC Oncology GA 458KZ UT WOS:000170194700014 PM 11479210 ER PT J AU Burleigh, MC Dai, S Hagaman, EW Lin, JS AF Burleigh, MC Dai, S Hagaman, EW Lin, JS TI Imprinted polysilsesquioxanes for the enhanced recognition of metal ions SO CHEMISTRY OF MATERIALS LA English DT Article ID MESOPOROUS MOLECULAR-SIEVES; SYNTHETIC-POLYMERS; EXCHANGE RESINS; ORGANIC GROUPS; SILICA; CHEMISTRY; TEMPLATES; ADSORPTION; FRAMEWORKS; SORBENTS AB Imprinting techniques have been used to synthesize organic-inorganic hybrid polymers with ionic recognition characteristics. 1,2-bis(triethoxysilyl)ethane (BTSE) monomers were copolymerized with metal ion complexes of N-[3-(trimethoxysilyl)propyl]ethylenediamine ((TMS)en) in the presence of supramolecular assemblies of cetyltrimethylammonium chloride (CTAC), via room temperature, hydrolytic, sol-gel procedures. Subsequent extraction of the surfactant and metal ions results in a porous material with a high affinity for the metal ion template. Selective sorbents have been synthesized for Cu(II), Ni(II), and Zn(II). Adsorption studies indicate that these materials preferentially sequester the metal ion template from mixed solutions and exhibit fast uptake kinetics. These materials have been characterized by nitrogen gas adsorption, small-angle X-ray scattering, solid state C-13 NMR, and UV-visible spectroscopy. C1 Oak Ridge Natl Lab, Div Chem Technol, Oak Ridge, TN 37831 USA. Oak Ridge Natl Lab, Dept Chem & Analyt Sci, Oak Ridge, TN 37831 USA. Oak Ridge Natl Lab, Solid State Div, Oak Ridge, TN 37831 USA. Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. RP Dai, S (reprint author), Oak Ridge Natl Lab, Div Chem Technol, POB 2008, Oak Ridge, TN 37831 USA. RI Dai, Sheng/K-8411-2015 OI Dai, Sheng/0000-0002-8046-3931 NR 49 TC 159 Z9 161 U1 4 U2 55 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0897-4756 J9 CHEM MATER JI Chem. Mat. PD AUG PY 2001 VL 13 IS 8 BP 2537 EP 2546 DI 10.1021/cm000894m PG 10 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 466AA UT WOS:000170621100015 ER PT J AU Chisholm, CRI Cowan, LA Haile, SM Klooster, WT AF Chisholm, CRI Cowan, LA Haile, SM Klooster, WT TI Synthesis, structure, and properties of compounds in the NaHSO4-CsHSO4 system. 1. Crystal structures of CS2Na(HSO4)(3) and CsNa2(HSO4)(3) SO CHEMISTRY OF MATERIALS LA English DT Article ID X-RAY-DIFFRACTION; HYDROGEN-BOND; CONDUCTIVITY; PHASE; TRANSITIONS AB Exploratory synthesis in the NaHSO4-CsHSO4 system, aimed at discovering novel proton conducting solids, resulted in the new compounds CsNa2(HSO4)(3) and Cs2Na(HSO4)(3). Single-crystal X-ray diffraction (performed at room temperature) revealed CsNa2(HSO4)(3) to crystallize in the cubic space group P2(1)3 with lattice parameters a = 10.568(2) Angstrom and Z = 4, whereas CS2Na(HSO4)(3), studied by both single-crystal neutron and X-ray methods, crystallizes in the hexagonal space group P6(3)/m. The latter compound has lattice parameters a = 8.5712(17) and c = 9.980(2) Angstrom, and Z = 2. The unit cell volumes are 1180.4(4) and 634.9(2) Angstrom (3), respectively, giving calculated densities of 2.645 and 3.304 mg m(-3). Refinement using all observed reflections yielded a weighted residual, R-w(F-2), of 0.0515 based on F-2 X-ray values for CsNa2(HSO4)(3). For Cs2Na(HSO4)(3) the analogous X-ray and neutron values were 0.0483 and 0.1715, respectively. Both structures contain a single, crystallographically distinct, asymmetric hydrogen bond (as confirmed by NMR investigations) and unique, three-membered (HSO4)(3) rings. The geometric match between the NaO6 octahedra and the rings suggests the sodium polyhedra may serve to template the (HSO4)(3) unit. In CsNa2(HSO4)(3) the rings form a distorted cubic close-packed array. The Cs atoms are located within the "octahedral" sites of this array, and the Na atoms, within the "tetrahedral" sites. The rings in CS2Na(HSO4)(3) are linked together by NaO6 octahedra to form infinite Na(HSO4)(3) chains that extend along [001]. The hexagonal compound exhibits disorder about the sulfate tetrahedron that suggests a P6(3)/m --> P6 phase transition may occur upon cooling. C1 CALTECH, Pasadena, CA 91125 USA. Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. RP Haile, SM (reprint author), CALTECH, Pasadena, CA 91125 USA. RI Haile, Sossina/I-3448-2015 NR 22 TC 7 Z9 7 U1 2 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0897-4756 J9 CHEM MATER JI Chem. Mat. PD AUG PY 2001 VL 13 IS 8 BP 2574 EP 2583 DI 10.1021/cm000976a PG 10 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 466AA UT WOS:000170621100020 ER PT J AU Ross, DS Bartlett, RJ Zhang, H AF Ross, DS Bartlett, RJ Zhang, H TI Photochemically induced formation of the "Al-13" tridecameric polycation in the presence of Fe(III) and organic acids SO CHEMOSPHERE LA English DT Article DE aluminum; photolysis; aluminum toxicity; iron; aquatic chemistry; free radicals ID SURFACE WATERS; COMPLEXES; IRON; SPECIATION; SUBSTANCES; CHEMISTRY; POLYMER; AL13 AB We found that light-induced Fe(III) reduction associated with the oxidation of a simple hydroxy-carboxylic acid (lactate) caused the formation of the AlO4Al12(OH)(24)(H2O)(12) polycation ("Al-13"). Initial conditions were a lactate:Al:Fe ratio of 1:0.76:0.11 in a partially neutralized solution. Base was added rapidly and no Al-13 was detected in samples kept in the dark. With exposure to light, Fe(III) reduction was rapid and Fe(II) reached a maximum within 1 day. After the maximum, steady-state Fe(II) declined from 54% to 43% over eight days. During this same time period, the lactate concentration fell to 2% of the original, pH rose from 4.05 to 4.46, and the Al-13 detectable by Al-27 NMR increased to 2.3 mmol 1(-1) (51% of the total solution Al). The formation of Al-13 is attributed to the pH rise resulting from the removal of the organic acid buffer. Similar photo-induced chemical changes occur in natural waters and may promote the formation of Al-13, conditions permitting. (C) 2001 Elsevier Science Ltd. All rights reserved. C1 Univ Vermont, Dept Plant & Soil Sci, Burlington, VT 05405 USA. Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. RP Ross, DS (reprint author), Univ Vermont, Dept Plant & Soil Sci, Burlington, VT 05405 USA. RI Ross, Donald/A-4477-2008 OI Ross, Donald/0000-0002-5390-6602 NR 24 TC 5 Z9 6 U1 2 U2 6 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0045-6535 J9 CHEMOSPHERE JI Chemosphere PD AUG PY 2001 VL 44 IS 4 BP 827 EP 832 DI 10.1016/S0045-6535(00)00341-6 PG 6 WC Environmental Sciences SC Environmental Sciences & Ecology GA 454XE UT WOS:000169996400039 PM 11482675 ER PT J AU Zhang, T Zhang, HX Brown, IG Chu, PK AF Zhang, T Zhang, HX Brown, IG Chu, PK TI Assistant anode in a cathodic arc plasma source SO CHINESE PHYSICS LETTERS LA English DT Article ID IMMERSION ION-IMPLANTATION; SPOT MOTION; DEPOSITION AB The performance and characteristics of a cathodic arc plasma source, consisting of a titanium cathode, an anode with and without a tungsten mesh, and a coil producing a focusing magnetic field between the anode and cathode, are investigated. The high transparency and large area of the mesh allow a high plasma flux to penetrate the anode from the cathodic arc. The mesh helps to decrease the arc resistance and the ignition voltage of the cathodic arc in the focusing magnetic field, and to increase the life of the source, which means that the source makes the cathodic arc easily and greatly stabilized during the operation when a focusing magnetic field exists in the source. C1 Beijing Normal Univ, Inst Low Energy Nucl Phys, Ctr Radiat, Beijing 100875, Peoples R China. City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China. Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Zhang, T (reprint author), Beijing Normal Univ, Inst Low Energy Nucl Phys, Ctr Radiat, Beijing 100875, Peoples R China. RI Chu, Paul/B-5923-2013 OI Chu, Paul/0000-0002-5581-4883 NR 13 TC 1 Z9 1 U1 0 U2 2 PU ALLERTON PRESS INC PI NEW YORK PA 18 WEST 27TH ST, NEW YORK, NY 10001 USA SN 0256-307X J9 CHINESE PHYS LETT JI Chin. Phys. Lett. PD AUG PY 2001 VL 18 IS 8 BP 1103 EP 1104 PG 2 WC Physics, Multidisciplinary SC Physics GA 465DE UT WOS:000170573700036 ER PT J AU Shang, C Rice, JA Lin, JS AF Shang, C Rice, JA Lin, JS TI Thickness and surface characteristics of colloidal 2 : 1 aluminosilicates using an indirect Fourier transform of small-angle X-ray scattering data SO CLAYS AND CLAY MINERALS LA English DT Article DE illite; indirect Fourier transform; montmorillonite; SAXS; thickness ID MONTMORILLONITE CLAY SUSPENSIONS; ILLITE-SMECTITE; FUNDAMENTAL PARTICLES; XRD MEASUREMENT; MICROEMULSIONS; MIXTURES; NEUTRON AB An indirect Fourier transformation applied to small-angle X-ray scattering data has been used to determine the thickness and surface properties of two common clay minerals. For an illite system, the particle density distribution function (PDDF) generated by the analysis gave a correct description of particle geometry, and the calculated electron density profile was in accordance with the theoretical electron density distribution for this mineral. This approach provides the opportunity to determine the thickness of fundamental particles of illite while avoiding the difficulties encountered in other methods. Both the PDDF and the electron density profile accurately predict the thickness of Na-montmorillonite layers, and the results suggest that an electron inhomogeneity exists at the interface of this mineral. C1 S Dakota State Univ, Dept Chem & Biochem, Brookings, SD 57007 USA. Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA. RP Shang, C (reprint author), S Dakota State Univ, Dept Chem & Biochem, Brookings, SD 57007 USA. NR 31 TC 5 Z9 5 U1 2 U2 5 PU CLAY MINERALS SOC PI CHANTILLY PA 3635 CONCORDE PKWY, STE 500, CHANTILLY, VA 20151-1125 USA SN 0009-8604 J9 CLAY CLAY MINER JI Clay Clay Min. PD AUG PY 2001 VL 49 IS 4 BP 277 EP 285 DI 10.1346/CCMN.2001.0490401 PG 9 WC Chemistry, Physical; Geosciences, Multidisciplinary; Mineralogy; Soil Science SC Chemistry; Geology; Mineralogy; Agriculture GA 465RG UT WOS:000170603300001 ER PT J AU Hrbek, J Rodriguez, JA Dvorak, J Jirsak, T AF Hrbek, J Rodriguez, JA Dvorak, J Jirsak, T TI Sulfur adsorption and reaction with a TiO2(110) surface: O <-> S exchange and sulfide formation SO COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS LA English DT Article DE sulfur; titanium oxide; photoemission spectroscopy; sulfidation; DFT calculations; surface reactions; heterogeneous catalysis ID DEFECTS; CATALYSIS; OXIDATION; OXYGEN; FILMS; METAL; XPS; SO2; H2S AB Upon sulfur adsorption on TiO2(110) at 600 K, all surface oxygen is replaced by sulfur. High-resolution photoemission data show a complete loss of oxygen from the surface layer, a large binding energy shift and attenuation of Ti core levels, and the presence of three different S species. The bonding of sulfur is examined using first-principles density-functional calculations and the periodic supercell approach. At saturation the top layer of the oxide surface is converted to sulfide, with the majority of sulfur buckled above the Ti lattice plane and the remaining sulfur bonded in bridging sites. A mechanism for this self-limiting thermodynamically unlikely surface reaction is proposed. C1 Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. RP Hrbek, J (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. RI Hrbek, Jan/I-1020-2013 NR 29 TC 9 Z9 9 U1 0 U2 9 PU INST ORGANIC CHEM AND BIOCHEM PI PRAGUE 6 PA ACAD SCI CZECH REPUBLIC, FLEMINGOVO NAM 2, PRAGUE 6 166 10, CZECH REPUBLIC SN 0010-0765 J9 COLLECT CZECH CHEM C JI Collect. Czech. Chem. Commun. PD AUG PY 2001 VL 66 IS 8 BP 1149 EP 1163 DI 10.1135/cccc20011149 PG 15 WC Chemistry, Multidisciplinary SC Chemistry GA 487DH UT WOS:000171858000001 ER PT J AU Liau, YC Kim, ES Yang, V AF Liau, YC Kim, ES Yang, V TI A comprehensive analysis of laser-induced ignition of RDX monopropellant SO COMBUSTION AND FLAME LA English DT Article ID GAS-PHASE IGNITION; SHOCK TUBE CONDITIONS; CONSTANT ENERGY FLUX; IN-DEPTH ABSORPTION; HOT OXIDIZING GAS; SOLID-PROPELLANTS; HETEROGENEOUS IGNITION; NITRAMINE DEFLAGRATION; ASYMPTOTIC ANALYSIS; OPTICAL-PROPERTIES AB A comprehensive analysis of laser-induced ignition of 1,3,5-trinitrohexahydro-s-triazine (RDX) monopropellant has been performed with consideration of detailed chemical kinetics. The model considers the transient development in the entire combustion zone, including the solid-phase, subsurface two-phase, and gas-phase regions. The formulation accommodates detailed chemical kinetics and transport phenomena in the gas phase, as well as thermal decomposition and subsequent reactions in the subsurface two-phase region. Thermodynamic phase transition and volumetric radiant energy absorption are also considered for completeness. The analysis is capable of treating the complete ignition process from surface pyrolysis to steady-state combustion, with the instantaneous burning rate and surface conditions treated as part of the solutions. Numerical experiments were conducted at atmospheric pressure in argon with CO(2) laser heat flux from 35 to 600 W/cm(2). Excellent agreement was obtained between the calculated and measured ignition delays. The propellant gasification rate increases with increasing laser intensity, which in turn shortens the ignition delay. The entire process can be divided into six stages: inert heating, thermal decomposition, occurrence of primary flame, preparation and formation of secondary flame and, finally, establishment of steady-state combustion. The major process in the primary flame is identified as the consumption of CH(2)O, HONO, NO(2), H(2)CN, H(2)CNNO(2), and HNO. In the secondary flame, the conversion of NO and HCN to N(2), CO, H(2)O, and H(2) is the key exothermic process causing ignition in the gas phase. (C) 2001 by The Combustion Institute. C1 Los Alamos Natl Lab, Chem Sci & Technol Div, Los Alamos, NM 87545 USA. Penn State Univ, Dept Mech & Nucl Engn, University Pk, PA 16802 USA. RP Yang, V (reprint author), Los Alamos Natl Lab, Chem Sci & Technol Div, POB 1663, Los Alamos, NM 87545 USA. EM vigor@psu.edu NR 52 TC 23 Z9 34 U1 0 U2 12 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 0010-2180 J9 COMBUST FLAME JI Combust. Flame PD AUG PY 2001 VL 126 IS 3 BP 1680 EP 1698 DI 10.1016/S0010-2180(01)00281-4 PG 19 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical; Engineering, Mechanical SC Thermodynamics; Energy & Fuels; Engineering GA 477UU UT WOS:000171303300007 ER PT J AU Peterson, PD Reynolds, AP Sutton, MA AF Peterson, PD Reynolds, AP Sutton, MA TI Measurement of the effect of artificial crack geometry on the rate of bulk H+ transport using fiber optic chemical sensors SO CORROSION LA English DT Article DE crack tip; fiber optic chemical sensor; geometry; transport ID STRESS-CORROSION CRACKS; ENVIRONMENTALLY-ASSISTED CRACKING; LOW-ALLOY STEEL; LOCALIZED CORROSION; FLUORESCENCE MICROSCOPY; ALUMINUM-ALLOYS; STAINLESS-STEEL; FATIGUE CRACKS; PH; CHEMISTRY AB Photopolymerized fiber optic chemical sensors were used to noninvasively investigate the time-dependent transport of ionic hydrogen (H-) between the crack tip and bulk environments as a function of crack tip opening angle (CTOA) and crack width. Artificial crack specimens were used to mitigate the chemical corrosion effects. It was found that both CTOA and crack width significantly affect transport of H+ to the crack tip. Cracks of sufficiently small CTOA demonstrated sufficient transport impedance in both the mouth-to-tip and transverse directions to be considered occluded. Increasing crack width for small CTOA further inhibited H+ transport cis a result of increased impedance in the transverse direction. C1 Univ S Carolina, Dept Mech Engn, Columbia, SC 29208 USA. RP Peterson, PD (reprint author), Los Alamos Natl Lab, MS C920, Los Alamos, NM 87545 USA. RI Reynolds, Anthony/F-2585-2010 NR 39 TC 2 Z9 2 U1 0 U2 1 PU NATL ASSN CORROSION ENG PI HOUSTON PA 1440 SOUTH CREEK DRIVE, HOUSTON, TX 77084-4906 USA SN 0010-9312 J9 CORROSION JI Corrosion PD AUG PY 2001 VL 57 IS 8 BP 693 EP 701 PG 9 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA 565EZ UT WOS:000176357300005 ER PT J AU Craft, RL AF Craft, RL TI Trends in technology and the future intensive care unit SO CRITICAL CARE MEDICINE LA English DT Article DE technology; future; trends; network; computer; software; telemedicine; critical care; agent; collaboration AB As advanced as today's critical care units are, changes in networks, computing platforms, instrumentation, human-machine interfaces, and software infrastructures and work being done in interoperability, process automation, and decision support all promise to alter both the structure and the operation of future critical unit settings. Although, as Yogi Berra said, "It's tough to make predictions, especially about the future," we can gain of a sense of the possibilities by studying emerging trends in each of these information technology-related areas. After describing notional physical and functional architectures for today's critical care units, this article provides a high-level overview of a number of trends in the areas listed above and provides the reader with starting points for further study. Although each of these trends may be fairly unremarkable when taken in isolation, when considered as a whole, the implications for critical care are profound. To that end, a final section of the article speculates on specific ways that these trends are likely to play themselves out in the context of tomorrow's critical care environments. C1 Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Craft, RL (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. NR 12 TC 10 Z9 10 U1 0 U2 0 PU LIPPINCOTT WILLIAMS & WILKINS PI PHILADELPHIA PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA SN 0090-3493 J9 CRIT CARE MED JI Crit. Care Med. PD AUG PY 2001 VL 29 IS 8 SU S BP N151 EP N158 DI 10.1097/00003246-200108001-00003 PG 8 WC Critical Care Medicine SC General & Internal Medicine GA 466VA UT WOS:000170665800003 PM 11496037 ER PT J AU Bakac, A AF Bakac, A TI Effects of halide ions and carbon monoxide on the reactions of iron(III) with alkyl radicals SO CROATICA CHEMICA ACTA LA English DT Article DE carbon monoxide; Fenton reaction; alkyl hydroperoxide; iron; alkyl radicals ID AQUEOUS-SOLUTION; METHYL RADICALS; RATE CONSTANTS AB In aqueous solutions in the presence of carbon monoxide, the Fenton-like reactions between Fe(H2O)(6)(2+) and alkyl hydroperoxides (RC(CH3)(2)OOH, R = CH3, C2H5) readily produce acyl radicals, R(C) over dot O. For R = CH3, the resulting acetyl radicals reduce Fe(H2O)(6)(3+), k = 6 x 10(5) mol(-1) dm(3) s(-1). The reaction of Fe(H2O)(6)(3+) with (CH3)-C-. is much slower, k approximate to 4 x 10(3) mol(-1) dm(3) s(-1). Halide ions have an accelerating effect and lead to the formation of halomethanes. The rate constant for the reaction Fe(H2O)(5)Br2+ + (CH3)-C-. --> CH3Br + Fe(H2O)(6)(2+) is greater than 10(8) mol(-1) dm(3) s(-1). C1 Iowa State Univ Sci & Technol, Ames Lab, Ames, IA 50011 USA. RP Bakac, A (reprint author), Iowa State Univ Sci & Technol, Ames Lab, Ames, IA 50011 USA. NR 10 TC 2 Z9 2 U1 0 U2 1 PU CROATIAN CHEMICAL SOC PI ZAGREB PA MARULICEV TRG 19/II, 41001 ZAGREB, CROATIA SN 0011-1643 J9 CROAT CHEM ACTA JI Croat. Chem. Acta PD AUG PY 2001 VL 74 IS 3 SI SI BP 633 EP 640 PG 8 WC Chemistry, Multidisciplinary SC Chemistry GA 469JN UT WOS:000170810900013 ER PT J AU Butkovic, V Bakac, A Espenson, JH AF Butkovic, V Bakac, A Espenson, JH TI Kinetics and mechanism of the reaction between mercury(II) and a series of macrocyclic organochromium cations SO CROATICA CHEMICA ACTA LA English DT Article DE alkylchromium; electrophilic substitution; mercury(II); kinetics ID COMPLEXES; HYDROLYSIS; CLEAVAGE AB Kinetic data are presented for the reaction of alkylchromium complexes (H2O)([14]aneN(4))CrR2+ ([14]aneN(4) = 1,4,8,11-tetraazacyclotetradecane) with Hg2+ via electrophilic substitution. The rate constants decrease in the order CH3 (1.1 x 10(6) mol(-1) dm(3) s(-1)) > C2H5 (7.7 x 10(2)) > C3H7 (59) > 2-C3H7 (0.12) > CH2C(CH3)(3) (0.0086). A series of meta and para substituted benzyl complexes obey a Hammett relationship with the reaction constant rho = -1.66, consistent with electrophilic substitution at alpha -carbon. C1 Rudjer Boskovic Inst, Zagreb 10002, Croatia. Iowa State Univ Sci & Technol, Ames Lab, Ames, IA 50011 USA. Iowa State Univ Sci & Technol, Dept Chem, Ames, IA 50011 USA. RP Butkovic, V (reprint author), Rudjer Boskovic Inst, POB 180, Zagreb 10002, Croatia. NR 11 TC 2 Z9 2 U1 0 U2 1 PU CROATIAN CHEMICAL SOC PI ZAGREB PA MARULICEV TRG 19/II, 41001 ZAGREB, CROATIA SN 0011-1643 J9 CROAT CHEM ACTA JI Croat. Chem. Acta PD AUG PY 2001 VL 74 IS 3 SI SI BP 735 EP 741 PG 7 WC Chemistry, Multidisciplinary SC Chemistry GA 469JN UT WOS:000170810900019 ER PT J AU Tong, HH Monteiro, OR MacGill, RA Brown, IG Yin, GF Luo, JM AF Tong, H. H. Monteiro, O. R. MacGill, R. A. Brown, I. G. Yin, G. F. Luo, J. M. TI Fabrication and characteristics of ta-C biomaterial coatings on Ti-6Al-4V using metal plasma immersion ion implantation and deposition SO CURRENT APPLIED PHYSICS LA English DT Article DE ta-C; Biomaterials; Metal plasma immersion ion implantation and deposition; Diamond-like carbon; Hard coatings AB We have formed amorphous diamond (ta-C) coatings on Ti-6Al-4V substrates using a metal plasma immersion ion implantation and deposition (MEPIIID) technique, and characterized the mechanical properties and biological compatibility of the coating material. The hemocompatibility of the coating compared favorably with that of low temperature isotropic (LTI) carbon, with kinetic clotting time and hemolysis rate approximately the same as for LTI carbon, and platelet consumption about twice that of the latter. The mechanical properties were good, with a microhardness greater than that of the uncoated metal substrates, and high adhesion of >0.75 GPa (interface shear stress) as estimated from a thermal quench method. Glancing-angle X-ray diffraction measurements indicated the presence of a TiC transition layer, suggesting the formation of a Ti/TiC/ta-C multilayer structure, leading in turn to good film-substrate adhesion. We conclude that this kind of amorphous diamond coating could provide benefit as a biocompatible hard coating for Ti-6Al-4V substrate material. (c) 2001 Elsevier Science B.V. All rights reserved. C1 [Tong, H. H.] SW Inst Phys, Chengdu 610041, Sichuan, Peoples R China. [Monteiro, O. R.; MacGill, R. A.; Brown, I. G.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Yin, G. F.; Luo, J. M.] Sichuan Univ, Dept Inorgan Mat, Chengdu 610065, Peoples R China. RP Tong, HH (reprint author), SW Inst Phys, Chengdu 610041, Sichuan, Peoples R China. EM thonghui@hotmail.com FU IAEA; US Department of Energy, Office of Energy Research [DE-AC03-76SF00098] FX One of us (H.H. Tong) was supported at LBNL by an IAEA Fellowship, for which he would like to express his appreciation. This work was supported in part by the US Department of Energy, Office of Energy Research, under Contract Number DE-AC03-76SF00098. NR 35 TC 5 Z9 6 U1 1 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1567-1739 EI 1878-1675 J9 CURR APPL PHYS JI Curr. Appl. Phys. PD AUG PY 2001 VL 1 IS 2-3 BP 197 EP 201 AR PII S1567-1739(01)00016-5 DI 10.1016/S1567-1739(01)00016-5 PG 5 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA V23BZ UT WOS:000208319600015 ER PT J AU Xenarios, L Eisenberg, D AF Xenarios, L Eisenberg, D TI Protein interaction databases SO CURRENT OPINION IN BIOTECHNOLOGY LA English DT Review ID SACCHAROMYCES-CEREVISIAE; INTERACTION MAP; YEAST; GENOME; COMPLEXES; SEQUENCE; NETWORK; BIND; DIP AB Life depends on the interaction of proteins. The availability of the complete human genome sequence has highlighted the need for a tool to analyse protein interactions and several databases have been compiled for this purpose. These databases document, categorize, and analyze interacting proteins and the cellular functions of the interactions. C1 Univ Calif Los Angeles, UCLA DOE Lab Struct Biol & Mol Med, Los Angeles, CA 90095 USA. RP Xenarios, L (reprint author), Univ Calif Los Angeles, UCLA DOE Lab Struct Biol & Mol Med, POB 951570, Los Angeles, CA 90095 USA. EM ixenario@mbi.ucla.edu; david@mbi.ucla.edu OI Xenarios, Ioannis/0000-0002-3413-6841 NR 29 TC 22 Z9 22 U1 0 U2 1 PU CURRENT BIOLOGY LTD PI LONDON PA 84 THEOBALDS RD, LONDON WC1X 8RR, ENGLAND SN 0958-1669 J9 CURR OPIN BIOTECH JI Curr. Opin. Biotechnol. PD AUG PY 2001 VL 12 IS 4 BP 334 EP 339 PG 6 WC Biochemical Research Methods; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 460EY UT WOS:000170296300002 ER PT J AU Mascarenhas, A Zhang, Y AF Mascarenhas, A Zhang, Y TI Dilute nitride based III-V alloys for laser and solar cell applications SO CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE LA English DT Review ID ELECTRON EFFECTIVE-MASS; SEMICONDUCTOR ALLOYS; OPTICAL-PROPERTIES; GAAS1-XNX ALLOYS; GAASN ALLOYS; NITROGEN-CONTENT; BAND-STRUCTURE; IMPURITY BAND; PHOTOLUMINESCENCE; LOCALIZATION AB The dilute nitrogen alloy GaAs1-xNx is of recent technological importance for high efficiency solar cells and vertical cavity surface emitting diode lasers used in fiber optic communications. The giant band gap lowering and the abnormal effective mass phenomena observed in this material have been extensively researched. There exist many inconsistencies between the results of various theoretical models and experimental techniques used to probe the above phenomena. It appears that these arise because GaAs1-xNx should be viewed not as an abnormal alloy but rather as a heavy isoelectronically doped semiconductor. (C) 2001 Elsevier Science Ltd. All rights reserved. C1 Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Mascarenhas, A (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA. NR 48 TC 12 Z9 12 U1 1 U2 14 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1359-0286 J9 CURR OPIN SOLID ST M JI Curr. Opin. Solid State Mat. Sci. PD AUG PY 2001 VL 5 IS 4 BP 253 EP 259 DI 10.1016/S1359-0286(01)00013-4 PG 7 WC Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Materials Science; Physics GA 471EF UT WOS:000170914100002 ER PT J AU Wiederhorn, SM Ferber, MK AF Wiederhorn, SM Ferber, MK TI Silicon nitride for gas turbines SO CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE LA English DT Review ID ADVANCED STRUCTURAL CERAMICS; TENSILE CREEP; FRACTURE; COMMERCIALIZATION; MICROSTRUCTURE; NECESSITY; BEHAVIOR; STRENGTH; PATIENCE; FATIGUE C1 Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA. Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA. RP Wiederhorn, SM (reprint author), Natl Inst Stand & Technol, 100 Bur Dr, Gaithersburg, MD 20899 USA. NR 29 TC 36 Z9 36 U1 2 U2 7 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1359-0286 J9 CURR OPIN SOLID ST M JI Curr. Opin. Solid State Mat. Sci. PD AUG PY 2001 VL 5 IS 4 BP 311 EP 316 DI 10.1016/S1359-0286(00)00032-2 PG 6 WC Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Materials Science; Physics GA 471EF UT WOS:000170914100009 ER PT J AU Bowie, JU AF Bowie, JU TI Stabilizing membrane proteins SO CURRENT OPINION IN STRUCTURAL BIOLOGY LA English DT Review ID M13 COAT PROTEIN; SARCOPLASMIC-RETICULUM; TRANSMEMBRANE SEGMENT; HELIX PACKING; SIDE-CHAINS; BACTERIORHODOPSIN; INACTIVATION; AMPHIPOLS; ANGSTROM; MODEL AB Membrane proteins can be extremely stable in a bilayer environment, but are often unstable and rapidly lose activity after detergent solubilization. Poor stability can preclude the detailed characterization of many membrane proteins. One way to alleviate this problem is to find more stable mutants of a membrane protein of interest. This approach is made tractable by the finding that stability-enhancing mutations appear to be relatively common in membrane proteins. C1 Dept Chem & Biochem, Los Angeles, CA 90095 USA. Univ Calif Los Angeles, DOE, Lab Struct Biol & Mol Med, Los Angeles, CA 90095 USA. RP Bowie, JU (reprint author), Dept Chem & Biochem, Boyer Hall,611 Charles E Young Dr E, Los Angeles, CA 90095 USA. FU NIGMS NIH HHS [GM59164, GM63919] NR 41 TC 176 Z9 177 U1 3 U2 21 PU CURRENT BIOLOGY LTD PI LONDON PA 84 THEOBALDS RD, LONDON WC1X 8RR, ENGLAND SN 0959-440X J9 CURR OPIN STRUC BIOL JI Curr. Opin. Struct. Biol. PD AUG PY 2001 VL 11 IS 4 BP 397 EP 402 DI 10.1016/S0959-440X(00)00223-2 PG 6 WC Biochemistry & Molecular Biology; Cell Biology SC Biochemistry & Molecular Biology; Cell Biology GA 462RK UT WOS:000170433400002 PM 11495729 ER PT J AU Simian, M Hirai, Y Navre, M Werb, Z Lochter, A Bissell, MJ AF Simian, M Hirai, Y Navre, M Werb, Z Lochter, A Bissell, MJ TI The interplay of matrix metalloproteinases, morphogens and growth factors is necessary for branching of mammary epithelial cells SO DEVELOPMENT LA English DT Article DE branching morphogenesis; mammary gland; stromelysin 1; epimorphin; plasminogen; stromal/epithelial interactions; mouse ID BASEMENT-MEMBRANE; TRANSGENIC MICE; STROMELYSIN-1 EXPRESSION; PLASMINOGEN-ACTIVATOR; GLAND DEVELOPMENT; GENE-EXPRESSION; FACTOR RECEPTOR; COLLAGEN GELS; IN-VIVO; PROTEINASES AB The mammary gland develops its adult form by a process referred to as branching morphogenesis. Many factors have been reported to affect this process. We have used cultured primary mammary epithelial organoids and mammary epithelial cell lines in three-dimensional collagen gels to elucidate which growth factors, matrix metalloproteinases (MMPs) and mammary morphogens interact in branching morphogenesis. Branching stimulated by stromal fibroblasts, epidermal growth factor, fibroblast growth factor 7, fibroblast growth factor 2 and hepatocyte growth factor was strongly reduced by inhibitors of MMPs, indicating the requirement of MMPs for three-dimensional growth involved in morphogenesis. Recombinant stromelysin 1/MMP3 alone was sufficient to drive branching in the absence of growth factors in the organoids. Plasmin also stimulated branching; however, plasmin-dependent branching was abolished by both inhibitors of plasmin and MMPs, suggesting that plasmin activates MMPs. To differentiate between signals for proliferation and morphogenesis, we used a cloned mammary epithelial cell line that lacks epimorphin, an essential mammary morphogen. Both epimorphin and MMPs were required for morphogenesis, but neither was required for epithelial cell proliferation. These results provide direct evidence for a crucial role of MMPs in branching in mammary epithelium and suggest that, in addition to epimorphin, MMP activity is a minimum requirement for branching morphogenesis in the mammary gland. C1 Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA 94720 USA. Affymax Res Inst, Santa Clara, CA 95051 USA. Univ Calif San Francisco, Dept Anat, San Francisco, CA 94143 USA. RP Bissell, MJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Life Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA. FU NCI NIH HHS [R01 CA057621-07, CA 57621, CA 58207, P50 CA058207, P50 CA058207-11, R01 CA057621] NR 56 TC 214 Z9 217 U1 4 U2 16 PU COMPANY OF BIOLOGISTS LTD PI CAMBRIDGE PA BIDDER BUILDING CAMBRIDGE COMMERCIAL PARK COWLEY RD, CAMBRIDGE CB4 4DL, CAMBS, ENGLAND SN 0950-1991 J9 DEVELOPMENT JI Development PD AUG PY 2001 VL 128 IS 16 BP 3117 EP 3131 PG 15 WC Developmental Biology SC Developmental Biology GA 469QG UT WOS:000170825900007 PM 11688561 ER PT J AU Rojo, E Gillmor, CS Kovaleva, V Somerville, CR Raikhel, NV AF Rojo, E Gillmor, CS Kovaleva, V Somerville, CR Raikhel, NV TI VACUOLELESS1 is an essential gene required for vacuole formation and morphogenesis in Arabidopsis SO DEVELOPMENTAL CELL LA English DT Article ID PROTEIN COMPLEX; PREVACUOLAR COMPARTMENT; PREPROPHASE BANDS; CELL-DIVISION; PLANT-CELLS; YEAST; TRANSPORT; THALIANA; PATHWAY; FUSION AB Most plant cells are characterized by the presence of a large central vacuole that in differentiated cells accounts for more than 90% of the total volume. We have undertaken a genetic screen to look for mutants that are affected in the formation of vacuoles in plants. In this study, we report that inactivation of the Arabidopsis gene VACUOLELESS1 (VCL1) blocks vacuole formation and alters the pattern of cell division orientation and cell elongation in the embryo. Consistent with a role in vacuole biogenesis, we show that VCL1 encodes the Arabidopsis ortholog of yeast Vps16p. In contrast to yeast mutants that lack a vacuolar compartment but are viable and morphologically normal, loss of the plant vacuole leads to aberrant morphogenesis and embryonic lethality. C1 MSU, US DOE, Plant Res Lab, Stanford, CA 94305 USA. Michigan State Univ, Dept Biochem, E Lansing, MI 48824 USA. Stanford Univ, Dept Biol Sci, Stanford, CA 94305 USA. Carnegie Inst, Stanford, CA 94305 USA. RP Raikhel, NV (reprint author), MSU, US DOE, Plant Res Lab, Stanford, CA 94305 USA. EM nraikhel@msu.edu RI Somerville, Christopher/A-4048-2009; Gillmor, C. Stewart/C-1965-2014; Gillmor, Stewart/H-9102-2016; OI Somerville, Christopher/0000-0003-4647-0094; Rojo, Enrique/0000-0001-9886-2917 NR 26 TC 108 Z9 112 U1 0 U2 10 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 1534-5807 J9 DEV CELL JI Dev. Cell PD AUG PY 2001 VL 1 IS 2 BP 303 EP 310 DI 10.1016/S1534-5807(01)00024-7 PG 8 WC Cell Biology; Developmental Biology SC Cell Biology; Developmental Biology GA 546XH UT WOS:000175301300016 PM 11702788 ER PT J AU Hakovirta, M Verda, R He, XM Nastasi, M AF Hakovirta, M Verda, R He, XM Nastasi, M TI Heat resistance of fluorinated diamond-like carbon films SO DIAMOND AND RELATED MATERIALS LA English DT Article DE fluorinated diamond-like coatings; plasma processing; heat resistance; non-wetting; hardness ID SOURCE ION-IMPLANTATION; AMORPHOUS-CARBON; COATINGS; SURFACES AB The heat resistance of fluorinated diamond-like carbon (F-DLC) films produced by Plasma Immersion Ion Processing (PIIP) technique was investigated by annealing F-DLC coatings in a vacuum furnace. The growth rate for the F-DLC films was approximately 0.6 mum/h. In order to see the possible change in the composition and properties of the F-DLC films, Rutherford Backscattering Spectrometry (RBS), nanoindentation and contact angle measurements were performed before and after the heat treatments. The results show that the composition and properties of the F-DLC films were unchanged up to heat treatment at 300 degreesC for up to 30 min. Blistering and film delamination occurred for samples treated at 400 degreesC. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Univ Calif Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Hakovirta, M (reprint author), CERN, CH-1211 Geneva 23, Switzerland. NR 18 TC 20 Z9 24 U1 0 U2 7 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0925-9635 J9 DIAM RELAT MATER JI Diam. Relat. Mat. PD AUG PY 2001 VL 10 IS 8 BP 1486 EP 1490 DI 10.1016/S0925-9635(00)00621-X PG 5 WC Materials Science, Multidisciplinary SC Materials Science GA 456HG UT WOS:000170076600007 ER PT J AU Chenault, JM Feigerle, CS Han, XML Shaw, RW AF Chenault, JM Feigerle, CS Han, XML Shaw, RW TI Diamond growth reactor chemistry and film nucleation enhancement using chlorinated hydrocarbons SO DIAMOND AND RELATED MATERIALS LA English DT Article DE diamond; film nucleation; chlorinated hydrocarbons ID CHEMICAL-VAPOR-DEPOSITION; BEAM MASS-SPECTROMETRY; PRECURSORS; CHLOROMETHANE; REACTANTS; FLUORINE; SURFACES; HYDROGEN; METHANE; CH3 AB The chemistry of diamond film growth from chlorinated hydrocarbons has been investigated using a hot filament reactor coupled to an orifice sampling mass spectrometer. The relative concentrations of the species present near the growth surface have been determined as a function of filament temperature for dilute mixtures of CH(4), CH(3)Cl, CH(2)Cl(2), and CHCl(3) in H(2). Mass spectral analysis indicated that chlorinated hydrocarbons are sequentially dechlorinated in the presence of hydrogen at moderate reactor temperatures. A dark film was deposited on all surfaces of the reactor during studies of this dechlorination of CHCl(3). Raman analysis indicated that these deposits are small particle polycrystalline graphite. Pretreatment of a Si < 111 > substrate under conditions that create the graphite deposit is seen to produce a significant nucleation enhancement of diamond when followed by growth at a higher temperature. Chemical mechanisms for some of these processes are proposed. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA. Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. Butler Univ, Dept Phys & Astron, Indianapolis, IN 46208 USA. RP Shaw, RW (reprint author), Oak Ridge Natl Lab, Div Chem & Analyt Sci, POB 2008, Oak Ridge, TN 37831 USA. EM shawrw@ornl.gov NR 39 TC 2 Z9 2 U1 0 U2 0 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0925-9635 J9 DIAM RELAT MATER JI Diam. Relat. Mat. PD AUG PY 2001 VL 10 IS 8 BP 1497 EP 1505 DI 10.1016/S0925-9635(01)00381-8 PG 9 WC Materials Science, Multidisciplinary SC Materials Science GA 456HG UT WOS:000170076600009 ER PT J AU Hill, WR Mulholland, PJ Marzolf, ER AF Hill, WR Mulholland, PJ Marzolf, ER TI Stream ecosystem responses to forest leaf emergence in spring SO ECOLOGY LA English DT Article DE carotenoids; chlorophyll a; ecological efficiency; Elimia clavaeformis; grazing; nutrients; periphyton; photoacclimation; photosynthesis-irradiance; primary production; snails; streams ID OXYGEN CHANGE TECHNIQUE; WOODLAND STREAM; PRIMARY PRODUCERS; FOOD LIMITATION; PERIPHYTON; LIGHT; ALGAE; PHOTOSYNTHESIS; PHOSPHORUS; NUTRIENTS AB Streams in deciduous forests undergo marked transitions from light-replete to light-limited ecosystems every spring when leaves emerge on streamside trees. During the course of leaf emergence and enlargement, shade from leaves on streamside trees can reduce photosynthetically active radiation (PAR) falling on the streambed from > 1000 to < 30 mu mol .m(-2).s(-1). In this study, we examined the effects of leaf emergence at multiple levels in two headwater streams in eastern Tennessee. Primary production estimated from both photosynthesis-irradiance measurements of periphyton in the laboratory and whole-steam diurnal oxygen measurements decreased dramatically over the course of canopy closure. Monthly carbon fixation estimates for periphyton in White Oak Creek declined from 354 mug C/cm(2) in April to 66 mug C/cm(2) in June. while carbon fixation in Walker Branch declined from 495 to 168 mug C/cm(2). Periphyton photosynthesis became increasingly efficient at low irradiances (alpha increased more than threefold) as ambient streambed irradiances declined, but this increase in efficiency only partially compensated for the photon scarcity caused by riparian shade. Ecological photosynthetic efficiency (percentage of incident PAR energy fixed by photosynthesis) estimated from static models. whole-stream measurements, and ambient PAR was a negative exponential function of incident PAR, increasing from < 0.3% to 2% during canopy closure. This increase was attributable to (1) inefficient use of the relatively high irradiances before leaf emergence, and (2) greater photoefficiency (increased alpha) at low irradiances after leaf emergence. Nutrient concentrations (dissolved nitrate and phosphate) in both streams increased coincident with leaf emergence, implying a cascade of shade effects through primary producers to abiotic components of the ecosystem. Shade effects also propagated to higher trophic levels: growth rates of grazing snails (Elimia clavaeformis) in both streams decreased substantially from April to June, consistent with modeled decreases in the productivity of their food resource (periphyton). Snail growth rates were almost zero in White Oak Creek and were negative in Walker Branch during summer when streambed PAR was lowest. The multilevel effects of leaf emergence reported in this study accentuate the importance of light variation in aquatic ecosystems and illustrate the close coupling between streams and their surrounding terrestrial ecosystems. C1 Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. RP Hill, WR (reprint author), Illinois Nat Hist Survey, Ctr Aquat Ecol, 607 E Peabody Dr, Champaign, IL 61820 USA. RI Mulholland, Patrick/C-3142-2012 NR 47 TC 100 Z9 102 U1 9 U2 41 PU ECOLOGICAL SOC AMER PI WASHINGTON PA 1707 H ST NW, STE 400, WASHINGTON, DC 20006-3915 USA SN 0012-9658 J9 ECOLOGY JI Ecology PD AUG PY 2001 VL 82 IS 8 BP 2306 EP 2319 DI 10.1890/0012-9658(2001)082[2306:SERTFL]2.0.CO;2 PG 14 WC Ecology SC Environmental Sciences & Ecology GA 462ZP UT WOS:000170452600016 ER PT J AU Yang, XQ Sun, X Balasubramanian, M McBreen, J Xia, Y Sakai, T Yoshio, M AF Yang, XQ Sun, X Balasubramanian, M McBreen, J Xia, Y Sakai, T Yoshio, M TI The population of oxygen vacancies in Li1+yMn2-yO4-delta type cathode materials - The primary factor of temperature dependent structural changes SO ELECTROCHEMICAL AND SOLID STATE LETTERS LA English DT Article ID SPINEL LIMN2O4; LITHIUM BATTERIES; PHASE-TRANSITION; INSERTION; OXIDES AB Based on the results of differential scanning calorimetry and synchrotron based in situ X-ray diffraction, during cooling, the structural phase transition in LiMn2O4 spinel materials, when cooled below 280 K, is associated to the oxygen vacancies created during synthesis or heat-treatment. At low temperature (below 260 K), two coexisting phases, the spinel structure with cubic symmetry and another structure with tetragonal symmetry were observed. The fraction of tetragonal phase decreases with decreasing population of oxygen vacancies, becoming undetectable when the population of oxygen vacancies is very low The tetragonal structure in samples quenched to room temperature from 995 degreesC, as reported in the Literature, is also tentatively related to the oxygen vacancies created during heating and preserved during quenching. (C) 2001 The Electrochemical Society. C1 Brookhaven Natl Lab, Upton, NY 11973 USA. Osaka Natl Res Inst, Osaka, Japan. Saga Univ, Dept Appl Chem, Saga 8408502, Japan. RP Yang, XQ (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. NR 15 TC 24 Z9 25 U1 1 U2 18 PU ELECTROCHEMICAL SOC INC PI PENNINGTON PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA SN 1099-0062 J9 ELECTROCHEM SOLID ST JI Electrochem. Solid State Lett. PD AUG PY 2001 VL 4 IS 8 BP A117 EP A120 DI 10.1149/1.1380549 PG 4 WC Electrochemistry; Materials Science, Multidisciplinary SC Electrochemistry; Materials Science GA 455BC UT WOS:000170006800003 ER PT J AU Schulz, DL Curtis, CJ Ginley, DS AF Schulz, DL Curtis, CJ Ginley, DS TI Surface chemistry of copper nanoparticles and direct spray printing of hybrid particle/metallorganic inks SO ELECTROCHEMICAL AND SOLID STATE LETTERS LA English DT Article ID CHEMICAL-VAPOR-DEPOSITION; METALLIC COPPER; TEMPERATURE; PARTICLES; FILMS AB Copper films have been direct written on heated substrates using both neat metallorganic and two-component, copper nanoparticle/ copper metalloganic inks. Commercial nanoparticle copper (nano-Cu) was characterized by transmission electron microscopy and powder X-ray diffraction (PXRD) and found to consist of Cu/Cu2O spherical particles measuring 100-500 nm in diam. The Cu2O was etched away using an excess of hexafluoroacetylacetone (Hhfa) and vinyltrimethylsilane (VTMS) yielding pure Cu by PXRD. Hhfa etching in the absence of VTMS led to the formation of millimeter-sized Cu particles at room temperature. Neat (hexafluoroacetylacetonato) Cu(I)-(VTMS) (Cu(hfa) VTMS) was spray printed in a nitrogen ambient on glass microscope slides and Kapton at 210-230 degreesC to give dense, adherent films. Hhfa/VTMS-etched nano-Cu was mixed with (Cu(hfa) VTMS) and spray printed in a nitrogen ambient on glass microscope slides and Kapton at 210-220 degreesC. Copper films produced by both approaches were characterized by scanning electron microscopy and standard four-probe resistivity techniques. (C) 2001 The Electrochemical Society. C1 Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Ginley, DS (reprint author), CeraMem Corp, Waltham, MA 02453 USA. NR 22 TC 15 Z9 15 U1 0 U2 10 PU ELECTROCHEMICAL SOC INC PI PENNINGTON PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA SN 1099-0062 J9 ELECTROCHEM SOLID ST JI Electrochem. Solid State Lett. PD AUG PY 2001 VL 4 IS 8 BP C58 EP C61 DI 10.1149/1.1385308 PG 4 WC Electrochemistry; Materials Science, Multidisciplinary SC Electrochemistry; Materials Science GA 455BC UT WOS:000170006800011 ER PT J AU Ma, ZF Yang, XQ Liao, XZ Sun, X McBreen, J AF Ma, ZF Yang, XQ Liao, XZ Sun, X McBreen, J TI Electrochemical evaluation of composite cathodes base on blends of LiMn2O4 and LiNi0.8Co0.2O2 SO ELECTROCHEMISTRY COMMUNICATIONS LA English DT Article DE LiMn2O4; composite cathode materials; CV response; cycle performance; lithium cell ID SPINEL PHASES; BATTERIES; OPTIMIZATION; OXIDES; CELLS AB Composite cathodes were made by blending the LiMn2O4 spinel with 40-60% (wt) LiNi0.8Co0.2O2. The cyclic voltammetry (CV) response gives three pairs of separated redox peaks when a sweep rate of 0.05 mV/s was used over the potential range from 3.0 to 4.5 V vs. Li. These results indicate that the electrochemical lithium extraction/insertion reaction in these composite cathode materials take place in at least three stages during cycling. The oxidation peak 3.75 V, that is seen after the first cycle, is attributed to the extraction of lithium ions from LiNi0.8Co0.2O2, which occurs prior to the extraction of lithium ions from LiMn2O4 at 4.05 and 4.20 V during the charge process. There is also evidence for a further charging process in the LiNi0.8Co0.2O2 at the end of charge. The first peak on the first anodic sweep is higher than that seen on subsequent sweeps. This may be due to the presence of decomposition products on the surface of Ni-based cathode materials. The cycling performance of lithium cells, with LiMn2O4 cathodes, is improved by blending the spinel with LiNi0.8Co0.2O2. The electrochemical activity of LiNi0.8Co0.2O2, at both the beginning and end of charge may prevent overcharge and overdischarge of LiMn2O4 on the 4.1-4.2 V plateaus and increase its stability. (C) 2001 Published by Elsevier Science B.V. C1 Shanghai Jiao Tong Univ, Dept Chem Engn, Shanghai 200240, Peoples R China. Brookhaven Natl Lab, Upton, NY 11973 USA. RP Ma, ZF (reprint author), Shanghai Jiao Tong Univ, Dept Chem Engn, Shanghai 200240, Peoples R China. NR 20 TC 33 Z9 41 U1 1 U2 26 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 USA SN 1388-2481 J9 ELECTROCHEM COMMUN JI Electrochem. Commun. PD AUG PY 2001 VL 3 IS 8 BP 425 EP 428 DI 10.1016/S1388-2481(01)00195-3 PG 4 WC Electrochemistry SC Electrochemistry GA 458ZB UT WOS:000170224400010 ER PT J AU Lee, SH Cheong, HM Tracy, CE Mascarenhas, A Pitts, R Jorgensen, G Deb, SK AF Lee, SH Cheong, HM Tracy, CE Mascarenhas, A Pitts, R Jorgensen, G Deb, SK TI Influence of microstructure on the chemical diffusion of lithium ions in amorphous lithiated tungsten oxide films SO ELECTROCHIMICA ACTA LA English DT Article DE chemical diffusion; tungsten oxide; ac impedance; Raman; lithium insertion ID TRIOXIDE THIN-FILMS; ELECTROCHROMISM AB We describe how the chemical diffusion of lithium ions is affected by microstructural changes in amorphous lithiated tungsten oxide (a-LixWO3) films as a function of lithium ion concentration. The chemical diffusion of lithium ions in a-LixWO3 films is investigated using ac impedance spectroscopy and Raman scattering measurements. Two different a-WO3 films deposited by thermal evaporation at different partial pressures of nitrogen are used for these measurements. Based on the results of ac impedance spectroscopy and Raman scattering measurements, we conclude that the mechanism of these diffusion phenomena is attributed to an increase or decrease of the W-6 + =O/O-W6+ -O ratio with lithium ion insertion. (C) 2001 Elsevier Science Ltd. All rights reserved. C1 Natl Renewable Energy Lab, Ctr Basic Sci, Golden, CO 80401 USA. Sogang Univ, Seoul 121742, South Korea. RP Lee, SH (reprint author), Natl Renewable Energy Lab, Ctr Basic Sci, 1617 Cole Blvd, Golden, CO 80401 USA. RI Lee, Sehee/A-5989-2011; Cheong, Hyeonsik/D-7424-2012 OI Cheong, Hyeonsik/0000-0002-2347-4044 NR 18 TC 21 Z9 21 U1 1 U2 12 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0013-4686 J9 ELECTROCHIM ACTA JI Electrochim. Acta PD AUG 1 PY 2001 VL 46 IS 22 BP 3415 EP 3419 DI 10.1016/S0013-4686(01)00541-2 PG 5 WC Electrochemistry SC Electrochemistry GA 470BQ UT WOS:000170850900010 ER PT J AU Kim, CA Phillips, ML Kim, W Gingery, M Tran, HH Robinson, MA Faham, S Bowie, JU AF Kim, CA Phillips, ML Kim, W Gingery, M Tran, HH Robinson, MA Faham, S Bowie, JU TI Polymerization of the SAM domain of TEL in leukemogenesis and transcriptional repression SO EMBO JOURNAL LA English DT Article DE chromatin silencing; leukemia; oncogene; Pointed domain; polycomb group proteins ID CHRONIC MYELOMONOCYTIC LEUKEMIA; GREEN FLUORESCENT PROTEIN; CRYSTAL-STRUCTURE; MYELOID-LEUKEMIA; TYROSINE KINASE; FUSION PROTEIN; GENE; TRANSLOCATION; ONCOPROTEIN; BETA AB TEL is a transcriptional repressor that is a frequent target of chromosomal translocations in a large number of hematalogical malignancies. These rearrangements fuse a potent oligomerization module, the SAM domain of TEL, to a variety of tyrosine kinases or transcriptional regulatory proteins. The self-associating property of TEL-SAM is essential for cell transformation in many, if not all of these diseases. Here we show that the TEL-SAM domain forms a helical, head-to-tail polymeric structure held together by strong intermolecular contacts, providing the first clear demonstration that SAM domains can polymerize. Our results also suggest a mechanism by which SAM domains could mediate the spreading of transcriptional repression complexes along the chromosome. C1 Univ Calif Los Angeles, Dept Biochem & Chem, US DOE, Lab Struct Biol & Mol Med, Los Angeles, CA 90024 USA. RP Bowie, JU (reprint author), Univ Calif Los Angeles, Dept Biochem & Chem, US DOE, Lab Struct Biol & Mol Med, Los Angeles, CA 90024 USA. FU NCI NIH HHS [R01 CA081000, R01 CA81000] NR 53 TC 158 Z9 159 U1 1 U2 8 PU OXFORD UNIV PRESS PI OXFORD PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND SN 0261-4189 J9 EMBO J JI Embo J. PD AUG 1 PY 2001 VL 20 IS 15 BP 4173 EP 4182 DI 10.1093/emboj/20.15.4173 PG 10 WC Biochemistry & Molecular Biology; Cell Biology SC Biochemistry & Molecular Biology; Cell Biology GA 462DZ UT WOS:000170406600029 PM 11483520 ER PT J AU St Louis, VL Rudd, JWM Kelly, CA Hall, BD Rolfhus, KR Scott, KJ Lindberg, SE Dong, W AF St Louis, VL Rudd, JWM Kelly, CA Hall, BD Rolfhus, KR Scott, KJ Lindberg, SE Dong, W TI Importance of the forest canopy to fluxes of methyl mercury and total mercury to boreal ecosystems SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID NORTHWESTERN ONTARIO; ATMOSPHERIC INPUTS; GASEOUS MERCURY; DEPOSITION; METHYLMERCURY; EXCHANGE; THROUGHFALL; CATCHMENTS; SOILS; VAPOR AB The forest canopy was an important contributor to fluxes of methyl mercury (MeHg) and total mercury (THg) to the forest floor of boreal uplands and wetlands and potentially to downstream lakes, at the Experimental Lakes Area (ELA), northwestern Ontario. The estimated fluxes of MeHg and THg in throughfall plus litterfall below the forest canopy were 2 and 3 times greater than annual fluxes by direct wet deposition of MeHg (0.9 mg of MeHg ha(-1)) and THg (71 mg of THg ha(-1)). Almost all of the increased flux of MeHg and THg under the forest canopy occurred as litterfall (0.14-1.3 mg of MeHg ha(-1) yr(-1) and 110-220 mg of THg ha(-1) yr(-1)). Throughfall added no MeHg and approximately 9 mg of THg ha(-1) yr(-1) to wet deposition at ELA, unlike in other regions of the world where atmospheric deposition was more heavily contaminated. These data suggest that dry deposition of Hg on foliage as an aerosol or reactive gaseous Hg (RGM) species is low at ELA, a finding supported by preliminary measurements of RGM there. Annual total deposition from throughfall and litterfall under a fire-regenerated 19-yr-old jack pine/birch forest was 1.7 mg of MeHg ha(-1) and 200 mg of THg ha(-1). We found that average annual accumulation of MeHg and THg in the surficial litter/fungal layer of soils since the last forest fire varied between 0.6 and 1.6 mg of MeHg ha(-1) and between 130 and 590 mg of THg ha(-1) among sites differing in drainage and soil moisture. When soil Hg accumulation sites were matched with similar sites where litterfall and throughfall were collected, measured fluxes of THg to the forest floor (sources) were similar to our estimates of longterm soil accumulation rates (sinks), suggesting that the Hg in litterfall and throughfall is a new and not a recycled input of Hg to forested ecosystems. However, further research is required to determine the proportion of Hg in litterfall that is being biogeochemically recycled within forest and wetland ecosystems and, thus, does not represent new inputs to the forest ecosystem. C1 Univ Alberta, Dept Biol Sci, Edmonton, AB T6G 2E9, Canada. Inst Freshwater, Dept Fisheries & Oceans, Winnipeg, MB R3T 2N6, Canada. Univ Wisconsin, Water Chem Program, Madison, WI 53706 USA. Univ Manitoba, Dept Microbiol, Winnipeg, MB R3T 2N2, Canada. Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. RP St Louis, VL (reprint author), Univ Alberta, Dept Biol Sci, Edmonton, AB T6G 2E9, Canada. RI St. Louis, Vincent/G-6842-2011; St. Louis, Vincent/A-3757-2014; Mason, Robert/A-6829-2011 NR 45 TC 151 Z9 154 U1 4 U2 80 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0013-936X J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD AUG 1 PY 2001 VL 35 IS 15 BP 3089 EP 3098 DI 10.1021/es001924p PG 10 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 459ZK UT WOS:000170281200021 PM 11508309 ER PT J AU Molders, N Schilling, PJ Wong, J Roos, JW Smith, IL AF Molders, N Schilling, PJ Wong, J Roos, JW Smith, IL TI X-ray fluorescence mapping and micro-XANES spectroscopic characterization of exhaust particulates emitted from auto engines burning MMT-Added gasoline SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID NEAR-EDGE STRUCTURE; ABSORPTION-SPECTROSCOPY; SULFUR; SPECIATION; PHOTOABSORPTION; TRICARBONYL; FORMS AB The elemental distribution and compositional homogeneity in auto exhaust particulates emitted from methylcyclopentadienyl manganese tricarbonyl-(MMT-)added gasoline engines have been investigated using a newly installed synchrotron X-ray microprobe. Two representative groups of exhaust particulate matter, as defined in a recent bulk X-ray absorption fine structure (XAFS) spectroscopic study at the Mn K-edge, were studied. The micro-X-ray absorption near-edge structure (XANES) spectra indicate a relatively homogeneous distribution of phases within a given particulate sample, down to a spatial extent of 40 mum (the resolution of microprobe). The micro-XANES also enabled analysis of several areas which displayed compositions different from the bulk sample, supporting the general theory describing manganese species formation in the exhaust. The ability to evaluate small regions also enabled direct verification of manganese sulfate from the S XANES despite the vast excess of sulfur present in other forms. The presence of a chloride compound, introduced through the sample dilution air and engine intake air, was also revealed. The study demonstrates the value of the combined X-ray microfluorescence with excitation by polychromatic radiation for elemental mapping and micro-XANES spectroscopy for chemical speciation in the study of dilute environmental materials containing low-Z constituents such as Cl, S, and P. C1 Univ New Orleans, Dept Engn Mech, New Orleans, LA 70148 USA. Louisiana State Univ, Ctr Adv Microstruct & Devices, Baton Rouge, LA 70806 USA. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. Ethyl Corp, R&D Ctr, Richmond, VA 23217 USA. RP Schilling, PJ (reprint author), Univ New Orleans, Dept Engn Mech, New Orleans, LA 70148 USA. NR 21 TC 20 Z9 21 U1 0 U2 12 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0013-936X J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD AUG 1 PY 2001 VL 35 IS 15 BP 3122 EP 3129 DI 10.1021/es0010958 PG 8 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 459ZK UT WOS:000170281200026 PM 11505987 ER PT J AU Tokunaga, TK Wan, JM Firestone, MK Hazen, TC Schwartz, E Sutton, SR Newville, M AF Tokunaga, TK Wan, JM Firestone, MK Hazen, TC Schwartz, E Sutton, SR Newville, M TI Chromium diffusion and reduction in soil aggregates SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID X-RAY-ABSORPTION; HEXAVALENT CHROMIUM; CHROMATE; REDOX; SPECTROSCOPY; XANES; TRANSPORT; SURFACES; SORPTION; CR(VI) AB The distribution of metal contaminants such as chromium in soils can be strongly localized by transport limitations and redox gradients within soil aggregates. Measurements of COO diffusion and reduction to Cr(III) were. obtained in soil columns representing transacts into soil aggregates in order to quantify influences of organic carbon (OC) and redox potentials on Cr transport distances and microbial community composition. Shifts in characteristic redox potentials, and the extent of Cr(VI) reduction to Cr(III) were related to OC availability. Depth profiles of Cr(VI, III) obtained with micro X-ray absorption near edge structure (micro-XANES) spectroscopy reflected interdependent effects of diffusion and spatially dependent redox potentials on reduction kinetics and microbial community composition. Shallow diffusion depths (2-10 mm) and very sharply terminated diffusion fronts in columns amended with OC (80 and 800 ppm) reflected rapid increases in Cr reduction kinetics over very short (mm) distances. These results suggest that Cr contamination in soils can be restricted to the outsides of soil aggregates due to localized transport and rapid reduction and that bulk sample characterization is inadequate for understanding the controlling biogeochemical processes. C1 Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. Univ Calif Berkeley, Berkeley, CA 94720 USA. Univ Chicago, Chicago, IL 60637 USA. RP Tokunaga, TK (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RI Tokunaga, Tetsu/H-2790-2014; Wan, Jiamin/H-6656-2014; Hazen, Terry/C-1076-2012 OI Tokunaga, Tetsu/0000-0003-0861-6128; Hazen, Terry/0000-0002-2536-9993 NR 43 TC 44 Z9 48 U1 6 U2 35 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0013-936X J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD AUG 1 PY 2001 VL 35 IS 15 BP 3169 EP 3174 DI 10.1021/es010523m PG 6 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 459ZK UT WOS:000170281200033 PM 11505996 ER PT J AU Albert, KJ Myrick, ML Brown, SB James, DL Milanovich, FP Walt, DR AF Albert, KJ Myrick, ML Brown, SB James, DL Milanovich, FP Walt, DR TI Field-deployable sniffer for 2,4-dinitrotoluene detection SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID OPTICAL SENSOR ARRAY; PATTERN-RECOGNITION; NILE RED; NITRAMINE EXPLOSIVES; SOLVATOCHROMIC DYE; PHOTODIODE-ARRAY; POLYMER-FILMS; SYSTEM; VAPOR; IDENTIFICATION AB A field-deployable instrument has been developed to detect low-level 2,4-dinitrotoluene (2,4-DNT) vapors. The system is based on previously developed artificial nose technology and employs an array of sensory materials attached to the distal tips of an optical fiber bundle. Both semiselective and nonspecific, cross-reactive sensors were employed. Each sensor within the array responds differentially to vapor exposure so the array's fluorescence response patterns are unique for each analyte. The instrument is computationally "trained" to discriminate target response patterns from nontarget and background environments. This detection system has been applied to detect 2,4-DNT, an analyte commonly detected on the soil surface above buried 2,4,6-trinitrotoluene (TNT) land mines, in spiked soil and aqueous and ground samples. The system has been characterized and demonstrated the ability to detect 120 ppb 2,4-DNT vapor in blind (unknown) humidified samples during a supervised field test. C1 Tufts Univ, Dept Chem, Max Tishler Lab Organ Chem, Medford, MA 02155 USA. Univ S Carolina, Dept Chem & Biochem, Columbia, SC 29208 USA. Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Walt, DR (reprint author), Tufts Univ, Dept Chem, Max Tishler Lab Organ Chem, Medford, MA 02155 USA. OI Myrick, Michael/0000-0002-6905-0925 NR 50 TC 61 Z9 64 U1 0 U2 14 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0013-936X J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD AUG 1 PY 2001 VL 35 IS 15 BP 3193 EP 3200 DI 10.1021/es010829t PG 8 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 459ZK UT WOS:000170281200037 PM 11506002 ER PT J AU Congdon, JD Dunham, AE Hopkins, WA Rowe, CL Hinton, TG AF Congdon, JD Dunham, AE Hopkins, WA Rowe, CL Hinton, TG TI Resource allocation-based life histories: A conceptual basis for studies of ecological toxicology SO ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY LA English DT Article; Proceedings Paper CT 20th Annual Meeting of the Society-of-Environmental-Toxicology-and-Chemistry CY NOV 14-20, 1999 CL PHILADELPHIA, PENNSYLVANIA SP Soc Environm Toxicol & Chem DE resource allocation; life history; energy budget; metabolism ID BODY ELECTRICAL-CONDUCTIVITY; STANDARD METABOLIC-RATE; REPRODUCTIVE EFFORT; RANA-CATESBEIANA; SWIMMING PERFORMANCE; DAPHNIA-MAGNA; STRESS; ENERGETICS; EXPOSURE; RESPONSES AB Whereas ecological assessments of contaminants are concerned with populations and higher levels of organization, most mechanistic work in toxicology is directed at effects on individuals and their parts. We propose that studies based on individuals can be useful in ecological analysis of polluted systems when based on the concepts of resource allocation-based life history analysis. At the heart of the resource allocation approach is the concept of operative environments of individuals (i.e., environmental factors influencing birth, death, or migration). Contaminants can have strong influences on operative environments, modifying resource allocation strategies that reflect changes in energy assimilation and demands. By examining contaminant-induced responses of individuals from the perspective of changing operative environments, individual-based changes and population dynamics can be addressed in an ecologically rigorous manner. C1 Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA. Univ Penn, Dept Biol, Philadelphia, PA 19104 USA. Univ S Carolina, Dept Biol, Columbia, SC 29208 USA. Univ Maryland, Chesapeake Biol Lab, Ctr Environm Sci, Solomons, MD 20688 USA. RP Congdon, JD (reprint author), Univ Georgia, Savannah River Ecol Lab, PO Drawer E, Aiken, SC 29802 USA. RI Rowe, Christopher/D-5271-2012 NR 57 TC 64 Z9 64 U1 1 U2 26 PU SETAC PI PENSACOLA PA 1010 NORTH 12TH AVE, PENSACOLA, FL 32501-3367 USA SN 0730-7268 J9 ENVIRON TOXICOL CHEM JI Environ. Toxicol. Chem. PD AUG PY 2001 VL 20 IS 8 BP 1698 EP 1703 DI 10.1897/1551-5028(2001)020<1698:RABLHA>2.0.CO;2 PG 6 WC Environmental Sciences; Toxicology SC Environmental Sciences & Ecology; Toxicology GA 455JB UT WOS:000170022800011 PM 11491551 ER PT J AU Kropp, J Reynen, K Koeckeritz, U Wunderlich, G Schmeisser, A Knapp, FF Strasser, RH Franke, WG AF Kropp, J Reynen, K Koeckeritz, U Wunderlich, G Schmeisser, A Knapp, FF Strasser, RH Franke, WG TI Prevention of in-stent restenosis with liquid-filled 188-Re balloon: The Dresden in-stent restenosis radiation trial (DIRRT) SO EUROPEAN JOURNAL OF NUCLEAR MEDICINE LA English DT Meeting Abstract C1 Tech Univ Dresden, Dept Nucl Med, D-8027 Dresden, Germany. Tech Univ Dresden, Dept Cardiol, D-8027 Dresden, Germany. Oak Ridge Natl Lab, Nucl Med Grp, Oak Ridge, TN USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER-VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 USA SN 0340-6997 J9 EUR J NUCL MED JI Eur. J. Nucl. Med. PD AUG PY 2001 VL 28 IS 8 SU S MA OS127 BP 994 EP 994 PG 1 WC Radiology, Nuclear Medicine & Medical Imaging SC Radiology, Nuclear Medicine & Medical Imaging GA 464HZ UT WOS:000170528300129 ER PT J AU Knapp, FF Beets, AL Michaud, EJ Jones, BH Verberne, HJ Sloof, G Brown, KK Henke, BR AF Knapp, FF Beets, AL Michaud, EJ Jones, BH Verberne, HJ Sloof, G Brown, KK Henke, BR TI Treatment of diabetic DB/DB mice with the new insulin-sensitizing drug GW1929 results in alterations in glucose handling and lipid metabolism - Studies with [I-125]-BMIPP and [F-18]-2-FDG SO EUROPEAN JOURNAL OF NUCLEAR MEDICINE LA English DT Meeting Abstract C1 Oak Ridge Natl Lab, Nucl Med Grp, Oak Ridge, TN USA. Free Univ Amsterdam, Dept Nucl Med, NL-1081 HV Amsterdam, Netherlands. GlaxoSmithKline Inc, Res Triangle Pk, NC USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU SPRINGER-VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 USA SN 0340-6997 J9 EUR J NUCL MED JI Eur. J. Nucl. Med. PD AUG PY 2001 VL 28 IS 8 SU S MA OS210 BP 1016 EP 1016 PG 1 WC Radiology, Nuclear Medicine & Medical Imaging SC Radiology, Nuclear Medicine & Medical Imaging GA 464HZ UT WOS:000170528300212 ER PT J AU Liepe, K Hliscs, R Kropp, J Runge, R Knapp, FF Franke, WG AF Liepe, K Hliscs, R Kropp, J Runge, R Knapp, FF Franke, WG TI Radiation absorbed dose of rhenium-188-HEDP in bone metastases, bone marrow and bone surface SO EUROPEAN JOURNAL OF NUCLEAR MEDICINE LA English DT Meeting Abstract C1 Tech Univ Dresden, Dept Nucl Med, D-8027 Dresden, Germany. Oak Ridge Natl Lab, Nucl Med Grp, Oak Ridge, TN USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER-VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 USA SN 0340-6997 J9 EUR J NUCL MED JI Eur. J. Nucl. Med. PD AUG PY 2001 VL 28 IS 8 SU S MA OS365 BP 1055 EP 1055 PG 1 WC Radiology, Nuclear Medicine & Medical Imaging SC Radiology, Nuclear Medicine & Medical Imaging GA 464HZ UT WOS:000170528300365 ER PT J AU Whitlock, JL Horwitz, EP Hines, JJ Dietz, ML Rotmensch, J Reba, RC AF Whitlock, JL Horwitz, EP Hines, JJ Dietz, ML Rotmensch, J Reba, RC TI Production of bismuth-212 for therapeutic applications SO EUROPEAN JOURNAL OF NUCLEAR MEDICINE LA English DT Meeting Abstract C1 Univ Chicago, Dept Obstet & Gynecol Oncol, Chicago, IL 60637 USA. Univ Chicago, Dept Radiol, Chicago, IL 60637 USA. Argonne Natl Lab, Dept Chem, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER-VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 USA SN 0340-6997 J9 EUR J NUCL MED JI Eur. J. Nucl. Med. PD AUG PY 2001 VL 28 IS 8 SU S MA OS420 BP 1069 EP 1069 PG 1 WC Radiology, Nuclear Medicine & Medical Imaging SC Radiology, Nuclear Medicine & Medical Imaging GA 464HZ UT WOS:000170528300420 ER PT J AU Tomberli, B Benmore, CJ Egelstaff, PA Neuefeind, J Honkimaki, V AF Tomberli, B Benmore, CJ Egelstaff, PA Neuefeind, J Honkimaki, V TI Temperature dependence of structural quantum effects in liquid methanol SO EUROPHYSICS LETTERS LA English DT Article ID NEUTRON-DIFFRACTION; RAY-DIFFRACTION; WATER AB High-energy electromagnetic radiation scattering techniques have been used to measure the structural differences between liquids composed of four different isotopes of methanol (CH3OH, CD3OD, CH3OD and CD3OH) at temperatures of 24.5 degreesC and 80 degreesC. We measured the magnitude of the isotopic effect, which increases with decreasing temperature and comprises of both intramolecular and intermolecular effects. Intramolecularly, the C-O, O-H, and to a lesser extent the C-H bond lengths, shorten upon deuteration. Intermolecularly, the winding hydrogen bonded chain structure is affected significantly. The results show that hydrogenated simple alcohols are more disordered liquids than deuterated alcohols at the same temperature. Substitution at the methyl site is compared to substitution at the hydroxyl site and the effect is shown to increase more rapidly as temperature is decreased. C1 Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada. Argonne Natl Lab, Div Intense Pulsed Neutron Source, Argonne, IL 60439 USA. CLRC, Rutherford Appleton Lab, ISIS Facil, Chilton OX11 0XQ, Oxon, England. DESY, HASYLAB, D-22603 Hamburg, Germany. European Synchrotron Radiat Facil, F-38043 Grenoble, France. RP Tomberli, B (reprint author), Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada. RI Neuefeind, Joerg/D-9990-2015; OI Neuefeind, Joerg/0000-0002-0563-1544; Benmore, Chris/0000-0001-7007-7749 NR 13 TC 5 Z9 5 U1 1 U2 3 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 0295-5075 J9 EUROPHYS LETT JI Europhys. Lett. PD AUG PY 2001 VL 55 IS 3 BP 341 EP 347 DI 10.1209/epl/i2001-00421-1 PG 7 WC Physics, Multidisciplinary SC Physics GA 454TQ UT WOS:000169988200007 ER PT J AU Abanov, A Chubukov, AV Schmalian, J AF Abanov, A Chubukov, AV Schmalian, J TI Quantum-critical superconductivity in underdoped cuprates SO EUROPHYSICS LETTERS LA English DT Article ID T-C SUPERCONDUCTORS; PHASE FLUCTUATIONS; EXCITATION SPECTRUM; SUPERFLUID DENSITY; CRITICAL-POINT; HUBBARD-MODEL; BI2SR2CACU2O8+DELTA; STATE; TEMPERATURE; RESONANCE AB We argue that the pseudogap phase may be an attribute of the non-BCS pairing of quantum-critical, diffusive fermions near the antiferromagnetic quantum critical point. We derive and solve a set of three coupled Eliashberg-type equations for spin-mediated pairing and show that in some T range below the pairing instability, there is no feedback from superconductivity on fermionic excitations, and fermions remain diffusive despite of the pairing. We conject that in this regime, fluctuations of the pairing gap destroy the superconducting condensate but preserve the leading edge gap in the fermionic spectral function. C1 Univ Wisconsin, Dept Phys, Madison, WI 53706 USA. Iowa State Univ, Dept Phys, Ames, IA 50011 USA. Iowa State Univ, Ames Lab, Ames, IA 50011 USA. RP Abanov, A (reprint author), Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA. RI Schmalian, Joerg/H-2313-2011 NR 37 TC 24 Z9 24 U1 0 U2 2 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 0295-5075 J9 EUROPHYS LETT JI Europhys. Lett. PD AUG PY 2001 VL 55 IS 3 BP 369 EP 375 DI 10.1209/epl/i2001-00425-9 PG 7 WC Physics, Multidisciplinary SC Physics GA 454TQ UT WOS:000169988200011 ER PT J AU Seve, L Zhu, W Sinkovic, B Freeland, JW Coulthard, I Antel, WJ Parkin, SSP AF Seve, L Zhu, W Sinkovic, B Freeland, JW Coulthard, I Antel, WJ Parkin, SSP TI Observation of change in the oxidation state at ferromagnet/insulator interface upon thermal annealing SO EUROPHYSICS LETTERS LA English DT Article ID TUNNEL-JUNCTIONS AB It is reported that the magnetoresistance ( MR) of magnetic tunneling junction (MTJ) like Co1-xFex/Al2O3/Co1-xFex improves upon thermal annealing. We investigate the mechanism of this improvement by comparing the X-ray absorption spectra ( XAS) of half-MTJ structures (Co84Fe16/Al2O3) before and after annealing. Before annealing, XAS show the presence of few angstroms of Co- and Fe-oxides, which disappeared after annealing at 250 degreesC for 1/2 hour. We attribute enhanced MR upon annealing to the disappearance of Co and Fe oxides at the interface which reduce the spin-polarization of the conduction electrons and cause spin-flip scattering, both leading to inferior performance of MTJ. C1 Univ Connecticut, Dept Phys, Storrs, CT 06269 USA. Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. IBM Corp, Almaden Res Ctr, San Jose, CA 95120 USA. RP Seve, L (reprint author), Univ Connecticut, Dept Phys, 2152 Hillside Rd, Storrs, CT 06269 USA. RI Parkin, Stuart/D-2521-2012 NR 6 TC 11 Z9 11 U1 0 U2 2 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 0295-5075 J9 EUROPHYS LETT JI Europhys. Lett. PD AUG PY 2001 VL 55 IS 3 BP 439 EP 444 DI 10.1209/epl/i2001-00433-3 PG 6 WC Physics, Multidisciplinary SC Physics GA 454TQ UT WOS:000169988200021 ER PT J AU Soderlind, P AF Soderlind, P TI Ambient pressure phase diagram of plutonium: A unified theory for alpha-Pu and delta-Pu SO EUROPHYSICS LETTERS LA English DT Article ID ACTINIDE METALS; DENSITY APPROXIMATION; ELECTRONIC-STRUCTURE; BAND; LOCALIZATION; SYSTEMS; EQUIVALENT; MAGNETISM; SOLIDS AB We present a general theoretical approach that successfully describes the anomalous delta phase of plutonium, while at the same time being generally applicable for any metal, including alpha -Pu. For this purpose, we have used density-functional theory expanded to include additional electron correlation effects by means of gradient density corrections and spin/orbital polarization. Within this scheme, equilibrium volume, bulk modulus, and total energy of alpha -Pu and delta -Pu are calculated accurately without invoking ad hoc treatments or semi-empirical models for either phase. These anomalous properties of the delta phase are shown to be a consequence of magnetism. However, spin and orbital moment are close in magnitude and antiparallel, so that the total moment nearly vanishes. Calculated elastic constants and electronic structure of the delta phase are consistent with experiments. C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. NR 31 TC 119 Z9 119 U1 1 U2 7 PU EDP SCIENCES S A PI LES ULIS CEDEX A PA 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE SN 0295-5075 J9 EUROPHYS LETT JI Europhys. Lett. PD AUG PY 2001 VL 55 IS 4 BP 525 EP 531 DI 10.1209/epl/i2001-00447-3 PG 7 WC Physics, Multidisciplinary SC Physics GA 461ZZ UT WOS:000170394900012 ER PT J AU Bandyopadhyay, D Timchenko, N Suwa, T Hornsby, PJ Campisi, J Medrano, EE AF Bandyopadhyay, D Timchenko, N Suwa, T Hornsby, PJ Campisi, J Medrano, EE TI The human melanocyte: a model system to study the complexity of cellular aging and transformation in non-fibroblastic cells SO EXPERIMENTAL GERONTOLOGY LA English DT Review DE cyclins; cyclin-dependent kinases; cyclin-dependent kinase inhibitors; E2F; telomerase; hTERT-melanocytes ID SENESCENT HUMAN-FIBROBLASTS; CYCLIN-E; REPLICATIVE SENESCENCE; MALIGNANT-MELANOMA; TELOMERE LENGTH; EXPRESSION; P27(KIP1); CANCER; DIFFERENTIATION; PHOSPHORYLATION AB The melanocyte is a neural crest-derived cell that localizes in humans to several organs including the epidermis, eye, inner ear and leptomeninges. In the skin, melanocytes. synthesize and transfer melanin pigments to surrounding keratinocytes, leading to skin pigmentation and protection against solar exposure. We have investigated the process of replicative senescence and accompanying irreversible cell cycle arrest, in melanocytes in culture. As was found in other cell types, progressive telomere shortening appears to trigger replicative senescence in normal melanocytes. In addition, senescence is associated with increased binding of the cyclin-dependent kinase inhibitor (CDK-1) p16(lNK4a) to CDK4, down-regulation of cyclin E protein levels (and consequent loss of cyclin E/ CDK2 activity), underphosphorylation of the retinoblastoma protein RB and subsequent increased levels of E2F4-RB repressive complexes. In contrast to fibroblasts, however, the CDK-1s p21(Waf-1) and P27(Kip-1) are also down-regulated. These changes appear to be important for replicative senescence because they do not occur in melanocytes that overexpress the catalytic subunit of the enzyme telomerase (hTERT), or in melanomas, which are tumors that originate from melanocytes or melanoblasts. In contrast to unmodified melanocytes, hTERT overexpressing (telomerized) melanocytes displayed telomerase activity, stable telomere lengths and an extended replicative life span. However, telomerized melanocytes show changes in cell cycle regulatory proteins, including increased levels of cyclin E, p21(Waf-1) and p27(Kip-1). Cyclin E, p21(Waf-1) and p27(Kip-1) are also elevated in many primary melanomas, whereas p16(INK4a) is mutated or deleted in many invasive and metastatic melanomas. Thus, the molecular mechanisms leading to melanocyte senescence and transformation differ significantly from fibroblasts. This suggests that different cell types may use different strategies to halt the cell cycle in response to telomere attrition and thus prevent replicative immortality. (C) 2001 Elsevier Science Inc. All rights reserved. C1 Baylor Coll Med, Huffington Ctr Aging, Houston, TX 77030 USA. Baylor Coll Med, Dept Mol & Cellular Biol, Houston, TX 77030 USA. Baylor Coll Med, Dept Pathol, Houston, TX 77030 USA. Baylor Coll Med, Dept Dermatol, Houston, TX 77030 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. RP Medrano, EE (reprint author), Baylor Coll Med, Huffington Ctr Aging, 1 Baylor Plaza M320, Houston, TX 77030 USA. FU NIA NIH HHS [P01AG13663, R37AG09909]; NIGMS NIH HHS [R01GM55185] NR 38 TC 37 Z9 41 U1 1 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0531-5565 J9 EXP GERONTOL JI Exp. Gerontol. PD AUG PY 2001 VL 36 IS 8 BP 1265 EP 1275 DI 10.1016/S0531-5565(01)00098-5 PG 11 WC Geriatrics & Gerontology SC Geriatrics & Gerontology GA 470BM UT WOS:000170850600003 PM 11602203 ER PT J AU Becker, U Rosso, KM Hochella, MF AF Becker, U Rosso, KM Hochella, MF TI The proximity effect on semiconducting mineral surfaces: A new aspect of mineral surface reactivity and surface complexation theory? SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Article ID SCANNING-TUNNELING-MICROSCOPY; PYRITE 100 SURFACES; ELECTRONIC-STRUCTURE; STM IMAGES; CRYSTAL-GROWTH; DISSOLUTION KINETICS; OXIDATION; ADSORPTION; GALENA; MECHANISMS AB The observation and description of surface proximity effects, whereby the chemical reaction of one surface site influences the electronic structure and reactivity of neighboring or nearby sites, is presented in this study for the semiconducting minerals galena (PbS) and pyrite (FeS(2)). The methods used to study this effect include ab initio molecular orbital calculations and scanning tunneling microscopy and spectroscopy. The surface proximity effect can be manifested in different ways, although the principle is the same. For example, we predict that electron transfer in redox reactions on galena surfaces can involve separated sites with specific and special locations. Another example is seen for pyrite where the oxidation of one site on a terrace influences next-nearest neighbor sites, making them far more susceptible to oxidative attack relative to sites further away. The range of potential applications of the surface proximity effect model is also outlined for a number of environmentally and industrially important examples. These findings, in combination with surface complexation theory, an important model for attachment/detachment reactions at mineral-water interfaces, may eventually lead to an extended model that will include the specific influence of semiconductor-type proximity effects. Copyright (C) 2001 Elsevier Science Ltd. C1 Univ Munster, Inst Mineral, D-48149 Munster, Germany. Pacific NW Natl Lab, WR Wiley Environm Mol Sci Lab, Richland, WA 99352 USA. Virginia Polytech Inst & State Univ, Dept Geol Sci, Blacksburg, VA 24061 USA. RP Becker, U (reprint author), Univ Munster, Inst Mineral, Corrensstr 24, D-48149 Munster, Germany. RI Becker, Udo/F-7339-2011 OI Becker, Udo/0000-0002-1550-0484 NR 66 TC 65 Z9 66 U1 1 U2 21 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD AUG PY 2001 VL 65 IS 16 BP 2641 EP 2649 DI 10.1016/S0016-7037(01)00624-X PG 9 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 462ZL UT WOS:000170452300002 ER PT J AU Bierman, PR Marsella, KA Davis, PT Caffee, MW AF Bierman, PR Marsella, KA Davis, PT Caffee, MW TI Response to Discussion by Wolfe et al. on Bierman et al. (Geomorphology 25 (1999) 25-39) SO GEOMORPHOLOGY LA English DT Editorial Material ID SOUTHWESTERN CUMBERLAND PENINSULA; BAFFIN-ISLAND; ICE-SHEET; WESTERN NORWAY; CANADA; SURFACES; EROSION; EXTENT C1 Univ Vermont, Dept Geol, Burlington, VT 05405 USA. Bentley Coll, Dept Nat Sci, Waltham, MA 02452 USA. Lawrence Livermore Natl Lab, CAMS, Livermore, CA 94550 USA. RP Bierman, PR (reprint author), Univ Vermont, Dept Geol, Burlington, VT 05405 USA. NR 37 TC 12 Z9 12 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0169-555X J9 GEOMORPHOLOGY JI Geomorphology PD AUG PY 2001 VL 39 IS 3-4 BP 255 EP 260 DI 10.1016/S0169-555X(00)00102-1 PG 6 WC Geography, Physical; Geosciences, Multidisciplinary SC Physical Geography; Geology GA 475RF UT WOS:000171177400012 ER PT J AU Kleinman, LI Daum, PH Lee, YN Nunnermacker, LJ Springston, SR Weinstein-Lloyd, J Rudolph, J AF Kleinman, LI Daum, PH Lee, YN Nunnermacker, LJ Springston, SR Weinstein-Lloyd, J Rudolph, J TI Sensitivity of ozone production rate to ozone precursors SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID URBAN ATMOSPHERE; HYDROCARBONS; MODEL; TROPOSPHERE; MECHANISM; NOX AB The photochemical equations describing O-3 formation in the lower troposphere contain 2 major sink terms for free radicals; combination reactions and reactions with NOx. Knowing the fraction of radicals removed by reactions with NOx, termed L-N/Q, allows one to predict the sensitivity of O-3 production to NO and VOCs. We derive an analytic formula that gives L-N/Q in terms of readily measured O-3 precursors and test this formula using constrained steady state calculations based on field observations gathered in Phoenix, Arizona. The formula quantifies well-known results regarding the effects of dilution, oxidation, and the production of oxidants on the transition from VOC to NOx sensitive behavior as an air parcel is advected away from an urban source. C1 Brookhaven Natl Lab, Div Atmospher Sci, Dept Environm Sci, Upton, NY 11973 USA. SUNY Coll Old Westbury, Dept Chem Phys, Old Westbury, NY 11568 USA. York Univ, Dept Chem, Toronto, ON M3J 1P3, Canada. York Univ, Ctr Atmospher Res, Toronto, ON M3J 1P3, Canada. RP Kleinman, LI (reprint author), Brookhaven Natl Lab, Div Atmospher Sci, Dept Environm Sci, Upton, NY 11973 USA. NR 19 TC 25 Z9 26 U1 8 U2 20 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0094-8276 J9 GEOPHYS RES LETT JI Geophys. Res. Lett. PD AUG 1 PY 2001 VL 28 IS 15 BP 2903 EP 2906 DI 10.1029/2000GL012597 PG 4 WC Geosciences, Multidisciplinary SC Geology GA 457VK UT WOS:000170157400008 ER PT J AU Kim, J AF Kim, J TI A nested modeling study of elevation-dependent climate change signals in California induced by increased atmospheric CO2 SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID UNITED-STATES; WINTER SEASON; PRECIPITATION; SIMULATION; BUDGET; GCM AB Dynamically downscaled climate change signals due to increased atmospheric CO2 are investigated for three California basins. The downscaled signals show strong elevation dependence, mainly due to elevated freezing levels in the increased CO2 climate. Below 2.5 km, rainfall increases by over 150% while snowfall decreases by 20-40% in the winter. Above 2.5 km, rainfall and snowfall both increase in the winter, as the freezing levels appear mostly below this level. Winter snowmelt increases in all elevations due to warmer temperatures in the increased CO2 climate. Reduced snowfall and enhanced snowmelt during the winter decreases snowmelt-driven spring runoff below the 2.5 km level, where the peak snowmelt occurs one month earlier in the increased CO2 climate. Above 2.5km, increased winter snowfall maintains snowmelt-driven runoff through most of the warm season. The altered hydrologic characteristics in the increased CO2 climate affect the diurnal temperature variation mainly via snow-albedo-soil moisture feedback. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Kim, J (reprint author), Univ Calif Los Angeles, Dept Atmospher Sci, Los Angeles, CA 90024 USA. NR 16 TC 37 Z9 37 U1 0 U2 3 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0094-8276 J9 GEOPHYS RES LETT JI Geophys. Res. Lett. PD AUG 1 PY 2001 VL 28 IS 15 BP 2951 EP 2954 DI 10.1029/2001GL013198 PG 4 WC Geosciences, Multidisciplinary SC Geology GA 457VK UT WOS:000170157400020 ER PT J AU O'Sullivan, MJ Pruess, K Lippmann, MJ AF O'Sullivan, MJ Pruess, K Lippmann, MJ TI State of the art of geothermal reservoir simulation SO GEOTHERMICS LA English DT Review DE geothermal systems; modeling; simulation; reservoir ID SATURATED FRACTURED TUFF; NUMERICAL-SIMULATION; HEAT-TRANSFER; FLUID-FLOW; THERMOHYDROLOGIC CONDITIONS; HYDROTHERMAL SYSTEM; YUCCA-MOUNTAIN; POROUS-MEDIA; MODEL; FIELD AB Computer modeling of geothermal systems has become a mature technology with application to more than 100 fields world-wide. Large complex three-dimensional models having computational meshes with more than 4000 blocks are now used routinely. Researchers continue to carry out fundamental research on modeling techniques and physical processes in geothermal systems. The new advances are adopted quickly by the geothermal industry and have also found application in related areas such as nuclear waste storage, environmental remediation and studies of the vadose (unsaturated) zone. The current state-of-practice, recent advances and emerging trends in geothermal reservoir simulation are reviewed. (C) 2001 CNR. Published by Elsevier Science Ltd. All rights reserved. C1 Univ Auckland, Dept Engn Sci, Auckland, New Zealand. Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA. RP O'Sullivan, MJ (reprint author), Univ Auckland, Dept Engn Sci, Auckland, New Zealand. NR 195 TC 86 Z9 88 U1 5 U2 27 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0375-6505 J9 GEOTHERMICS JI Geothermics PD AUG PY 2001 VL 30 IS 4 BP 395 EP 429 DI 10.1016/S0375-6505(01)00005-0 PG 35 WC Energy & Fuels; Geosciences, Multidisciplinary SC Energy & Fuels; Geology GA 443ER UT WOS:000169328000001 ER PT J AU Culp, T Potter, CA AF Culp, T Potter, CA TI A defense in depth approach to radiation protection for I-125 production activities SO HEALTH PHYSICS LA English DT Article DE operational topic; I-125; radiation protection; operational safety AB Not all operational radiation protection situations lend themselves to simple solutions. Often a Radiation Protection Program must be developed and implemented for difficult situations. A defense in depth approach to radiation protection vas developed for I-125 production activities. Defense in depth relies on key radiation protection elements that tend to be mutually supportive and in combination provide reasonable assurance that the overall desired level of protection has been provided. For difficult situations, defense in depth can provide both a reasonable and appropriate approach to radiation protection. C1 Sandia Natl Labs, Dept 7123, Albuquerque, NM 87185 USA. RP Culp, T (reprint author), Sandia Natl Labs, Dept 7123, POB 5800,MS 1142, Albuquerque, NM 87185 USA. EM taculp@sandia.gov NR 6 TC 2 Z9 2 U1 0 U2 0 PU LIPPINCOTT WILLIAMS & WILKINS PI PHILADELPHIA PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA SN 0017-9078 EI 1538-5159 J9 HEALTH PHYS JI Health Phys. PD AUG PY 2001 VL 81 IS 2 SU S BP S29 EP S32 DI 10.1097/00004032-200108001-00013 PG 4 WC Environmental Sciences; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging SC Environmental Sciences & Ecology; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging GA 456UU UT WOS:000170101300010 PM 11480861 ER PT J AU Napier, BA AF Napier, BA TI Computer modeling codes for radiological and chemical airborne releases SO HEALTH PHYSICS LA English DT Article DE operational topic; emergencies, radiological; radionuclides; accident analysis AB Brief descriptions are provided for commonly used computer codes for estimating the consequences of atmospheric releases of radionuclides and chemicals. Different levels of sophistication and input detail are necessary for emergency response versus emergency planning. C1 Pacific NW Natl Lab, Richland, WA 99352 USA. RP Napier, BA (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA. EM Bruce.Napier@pnl.gov NR 1 TC 2 Z9 2 U1 0 U2 0 PU LIPPINCOTT WILLIAMS & WILKINS PI PHILADELPHIA PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA SN 0017-9078 EI 1538-5159 J9 HEALTH PHYS JI Health Phys. PD AUG PY 2001 VL 81 IS 2 SU S BP S15 EP S17 DI 10.1097/00004032-200108001-00009 PG 3 WC Environmental Sciences; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging SC Environmental Sciences & Ecology; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging GA 456UU UT WOS:000170101300006 PM 11480857 ER PT J AU Schrader, BJ AF Schrader, BJ TI Estimation of radionuclide content in contaminated laundry SO HEALTH PHYSICS LA English DT Article DE operational topic; contamination; waste management; waste transportation AB Radioactively contaminated laundry is normally sent off site for processing. Laundry is defined as radiologically contaminated anti-cs and respirators. This laundry is shipped as "limited quantity," in accordance with 49CFR173.421. This requires that 95% or the radionuclides shipped are characterized and quantified. In addition, the total quantity must be 10(-1) below the A(2) limits specified in 49CFR173. In any facility evaluated, the most conservative (highest activity) waste stream was used as the source term, Ifa new waste stream is established for a facility, its normalized activity should be compared to the evaluated waste stream to ensure the limits are not exceeded. This article documents a method used for estimating the radionuclide content in contaminated laundry. The maximum values were compared to 49CFR173. It was determined that if the contaminated laundry/respirators are shipped in an Interstate Nuclear Services (INS), L-59, limited quantity shipping container and the highest contact radiation level on any side, as measured with an ion chamber does not exceed 0.5 mR h(-1), the container complies with the requirements of 49CFR173 and could be shipped "limited quantity" from any of the facilities evaluated. C1 Idaho Natl Engn & Environm Lab, Bechtel BBWI LLC, Idaho Falls, ID 83415 USA. RP Schrader, BJ (reprint author), Idaho Natl Engn & Environm Lab, Bechtel BBWI LLC, 2525 Freemont Ave, Idaho Falls, ID 83415 USA. EM bschrade@inel.gov NR 0 TC 2 Z9 2 U1 0 U2 0 PU LIPPINCOTT WILLIAMS & WILKINS PI PHILADELPHIA PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA SN 0017-9078 EI 1538-5159 J9 HEALTH PHYS JI Health Phys. PD AUG PY 2001 VL 81 IS 2 SU S BP S33 EP S35 DI 10.1097/00004032-200108001-00014 PG 3 WC Environmental Sciences; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging SC Environmental Sciences & Ecology; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging GA 456UU UT WOS:000170101300011 PM 11480863 ER PT J AU Bogen, KT AF Bogen, KT TI Biologically based prediction of empirical nonlinearity in lung cancer risk vs. residential/occupational radon exposure SO HUMAN AND ECOLOGICAL RISK ASSESSMENT LA English DT Article DE alpha; cytotoxicity; dose response; epidemiology; models; multistage; mutation; radiation ID ALPHA-PARTICLE IRRADIATION; NONSMOKING URANIUM MINERS; RESIDENTIAL RADON; UNDERGROUND MINERS; CELL-PROLIFERATION; EPITHELIAL-CELLS; INDOOR RADON; RAT-LIVER; STATES; MODEL AB Ecologic U.S. county data suggest negative associations between residential radon exposure and lung cancer mortality (LCM) that are inconsistent with clearly positive ones revealed by individual data on underground miners. If this inconsistency is due to competing effects of induced cell killing vs. mutations in alpha-radiation exposed bronchial epithelium, then linear extrapolation from miner data may overestimate typical residential radon risks. To investigate the plausibility of this hypothesis, a biologically based "cytodynamic 2-stage" (CD2) cancer-risk model was fit to combined 1950 to 1954 age-specific person-year data on white females of age 40+ y in 2821 U.S. counties (similar to 90% never-smokers), and on five cohorts of underground miners who never smoked, conditional on a realistic rate of alpha-radiation-induced killing of human lung cells, and on linear-no-threshold dose-response relations for both processes assumed to affect cancer risk (alpha-induced mutations and cell killing). As summarized previously (Bogen, K.T., Hum. Exper. Toxicol. 17:691-6, 1998), a good CD2 fit was obtained that involved biologically plausible parameter values and (without further optimization) also predicted inverse dose-rate effects observed in the nonsmoking miners. The present paper reports mathematical details of the CD2 model used, as well as additional modeling results involving the same combined data set. The results obtained are consistent with the hypotheses that low-level radon exposure is nonlinearly related to LCM risk, and that current linear no-threshold extrapolation models overestimate LCM risk associated with relatively low residential radon concentrations (< similar to 200 Bq m(-3)). Testing this hypothesis would require more extensive individual-level epidemiological data relating residential radon exposures to LCM than are currently available. C1 Lawrence Livermore Natl Lab, Hlth & Ecol Assessment Div L396, Livermore, CA 94550 USA. RP Bogen, KT (reprint author), Lawrence Livermore Natl Lab, Hlth & Ecol Assessment Div L396, POB 5508, Livermore, CA 94550 USA. NR 78 TC 4 Z9 6 U1 0 U2 5 PU CRC PRESS LLC PI BOCA RATON PA 2000 CORPORATE BLVD NW, JOURNALS CUSTOMER SERVICE, BOCA RATON, FL 33431 USA SN 1080-7039 J9 HUM ECOL RISK ASSESS JI Hum. Ecol. Risk Assess. PD AUG PY 2001 VL 7 IS 4 BP 811 EP 827 DI 10.1080/20018091094673 PG 17 WC Biodiversity Conservation; Environmental Sciences SC Biodiversity & Conservation; Environmental Sciences & Ecology GA 469DJ UT WOS:000170798200015 ER PT J AU Carlsen, TM Peterson, LE Ulsh, BA Werner, CA Purvis, KL Sharber, AC AF Carlsen, TM Peterson, LE Ulsh, BA Werner, CA Purvis, KL Sharber, AC TI Radionuclide contamination at Kazakhstan's Semipalatinsk Test Site: Implications on human and ecological health SO HUMAN AND ECOLOGICAL RISK ASSESSMENT LA English DT Article DE Kazakhstan; Semipalatinsk Test Site; radionuclides; site characterization; health effects; ecological impacts ID NUCLEAR-TEST-SITE; TEST-RELATED RADIATION; PATHOLOGICAL FINDINGS; KAZAKSTAN; RADIOACTIVITY AB A delegation of five scientists participated in a U.S. National Research Council program to review the status of research on the health and environmental impacts of nuclear testing at the Semipalatinsk Test Site (STS) in the eastern region of the Republic of Kazakhstan. From I I August through 25 August 2000, we visited several research institutes in Kazakhstan and consulted with numerous Kazakh researchers from academic disciplines ranging from radioecology to public health and medicine. We focused on reviewing data on the health and environmental impacts resulting from the testing. The health effects caused by the testing at STS have received a fair amount of study, and research using modern techniques such as fluorescence in situ hybridization and nuclear magnetic resonance will likely increase the reliability of dose reconstruction. However, the extent to which the STS is contaminated has not been adequately characterized, and the potential exposure to nomadic peoples and ecological receptors at the uncontrolled test site is not known. Additional research in these areas, and development of administrative controls for the site, appears warranted. C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. Baylor Coll Med, Houston, TX 77030 USA. McMaster Univ, Dept Med Phys, Hamilton, ON L8S 4K1, Canada. Texas A&M Univ, College Stn, TX 77843 USA. WM Keck Sci Ctr, Claremont, CA 91711 USA. CNR, Washington, DC 20418 USA. RP Carlsen, TM (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. OI Peterson, Leif/0000-0002-1187-0883 NR 24 TC 9 Z9 9 U1 0 U2 4 PU CRC PRESS LLC PI BOCA RATON PA 2000 CORPORATE BLVD NW, JOURNALS CUSTOMER SERVICE, BOCA RATON, FL 33431 USA SN 1080-7039 J9 HUM ECOL RISK ASSESS JI Hum. Ecol. Risk Assess. PD AUG PY 2001 VL 7 IS 4 BP 943 EP 955 DI 10.1080/20018091094754 PG 13 WC Biodiversity Conservation; Environmental Sciences SC Biodiversity & Conservation; Environmental Sciences & Ecology GA 469DJ UT WOS:000170798200023 ER PT J AU Wang, RL Williams, WD AF Wang, RL Williams, WD TI Biogeochemical changes in the sediments of Lake Cantara South, a saline lake in South Australia SO HYDROBIOLOGIA LA English DT Article DE salt lake; hypersaline/saline lakes; lake sediments; organic compounds in lake sediments; paleolimnology ID ORGANIC-MATTER; HYDROCARBONS; INDICATORS; 2,6,10-TRIMETHYL-7-(3-METHYLBUTYL)-DODECANE; DIAGENESIS; MARKERS; MARINE AB Biogeochemical studies were undertaken of a 65-cm long sediment core from Lake Cantara South, South Australia. C-14 determinations indicated that the sediments had been deposited over 2000 years. Changes with sediment depth in the concentration or ratio of the following were determined: (i) total organic carbon, total carbonate (inorganic) carbon, total sulfur, total carbon, total inorganic and organic sulfur, atomic C/N, and sulfate/chloride; (ii) n-alkanes; (iii) a highly branched isoprenoid alkane, and (iv) steroids. Interpretation of the changes with sediment depth indicated the nature of changes that Look place when the system changed from a protected marine lagoon to an isolated (athalassic) saline lake, This change took place about 1000 years ago. C1 Indiana Univ, Biogeochem Lab, Bloomington, IN 47405 USA. Brookhaven Natl Lab, Dept Appl Sci, Upton, NY 11973 USA. Univ Adelaide, Dept Environm Biol, Adelaide, SA 5005, Australia. RP Wang, RL (reprint author), Indiana Univ, Biogeochem Lab, Bloomington, IN 47405 USA. NR 23 TC 4 Z9 6 U1 0 U2 3 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0018-8158 J9 HYDROBIOLOGIA JI Hydrobiologia PD AUG 1 PY 2001 VL 457 BP 17 EP 24 DI 10.1023/A:1012225311553 PG 8 WC Marine & Freshwater Biology SC Marine & Freshwater Biology GA 511DA UT WOS:000173248300003 ER PT J AU Lehman, JH Radojevic, AM Osgood, RM AF Lehman, JH Radojevic, AM Osgood, RM TI Domain-engineered thin-film LiNbO3 pyroelectric-bicell optical detector SO IEEE PHOTONICS TECHNOLOGY LETTERS LA English DT Article DE domain engineering; optical detector; pyroelectric detector; thin-film devices ID SINGLE; FABRICATION AB We have fabricated a bicell detector consisting of a single freestanding film of single-crystal lithium niobate (LiNbO3) 10-mum thick, having two adjacent domains of opposite spontaneous polarization, and hence, two adjacent pyroelectric detector regions of equal and opposite sensitivity. The film was created by applying the process of crystal ion slicing and electric field poling (domain engineering) to a Z-cut LiNbO3 wafer. The detector's noise equivalent power was 6 nW . Hz(-1/2) at 16 HZt, and the ambient temperature-dependent variation of the detector's response near room temperature was 0.1% K-1. The acoustic noise sensitivity measured at 100 Hz was -24 dB relative to that of a single-domain detector. C1 Natl Inst Stand & Technol, Sources & Detectors Grp, Boulder, CO 80303 USA. Columbia Univ, Microelect Sci Labs, New York, NY 10027 USA. Brookhaven Natl Lab, Upton, NY 11973 USA. RP Lehman, JH (reprint author), Natl Inst Stand & Technol, Sources & Detectors Grp, 325 Broadway, Boulder, CO 80303 USA. NR 10 TC 15 Z9 15 U1 2 U2 8 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 USA SN 1041-1135 J9 IEEE PHOTONIC TECH L JI IEEE Photonics Technol. Lett. PD AUG PY 2001 VL 13 IS 8 BP 851 EP 853 DI 10.1109/68.935825 PG 3 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA 454UK UT WOS:000169990000030 ER PT J AU Buchenauer, CJ Tyo, JS Schoenberg, JSH AF Buchenauer, CJ Tyo, JS Schoenberg, JSH TI Prompt aperture efficiencies of impulse radiating antennas with arrays as an application SO IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION LA English DT Article DE antenna transient analysis; aperture efficiency AB A concept of prompt aperture efficiency is introduced for the purpose of comparing and optimizing the performance of impulse radiating antennas (IRAs). The aperture efficiencies of popular lens and reflector IRAs are computed as the ratios of peak radiated power densities on boresight compared with that produced by an ideal IRA with an aperture of equal area and equal total input power. Loss of aperture efficiency occurs through two distinct mechanisms: from power that falls outside the aperture and is lost and from nonuniform power and polarization distributions within the aperture. Both loss mechanisms are addressed, and means for increasing efficiencies are identified. The optimum aperture for a given feed structure is derived. Prompt aperture efficiencies approaching 100% are feasible in TEM-born arrays and similar structures. C1 USAF, Res Lab, Directed Energy Directorate, Kirtland AFB, NM 87117 USA. RP Buchenauer, CJ (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87545 USA. NR 19 TC 10 Z9 10 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 USA SN 0018-926X J9 IEEE T ANTENN PROPAG JI IEEE Trans. Antennas Propag. PD AUG PY 2001 VL 49 IS 8 BP 1155 EP 1165 DI 10.1109/8.943310 PG 11 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA 466NH UT WOS:000170651300006 ER PT J AU Hart, WE AF Hart, WE TI Evolutionary pattern search algorithms for unconstrained and linearly constrained optimization SO IEEE TRANSACTIONS ON EVOLUTIONARY COMPUTATION LA English DT Article DE adaptivity; convergence; linear constraints; real-coded EAs ID CONVERGENCE AB We describe a convergence theory for evolutionary pattern search algorithms (EPSAs) on a broad class of unconstrained and linearly constrained problems. EPSAs adaptively modify the step size of the mutation operator in response to the success of previous optimization steps. The design of EPSAs is inspired by recent analyzes of pattern search methods. Our analysis significantly extends the previous convergence theory for EPSAs. Our analysis applies to a broader class of EPSAs and it applies to problems that are nonsmooth, have unbounded objective functions, and are linearly constrained. Further, we describe a modest change to the algorithmic framework of EPSAs for which a nonprobabilistic convergence theory applies. These analyses are also noteworthy because they are considerably simpler than previous analyses of EPSAs. C1 Sandia Natl Labs, Estimat Dept, Albuquerque, NM 87185 USA. RP Hart, WE (reprint author), Sandia Natl Labs, Estimat Dept, POB 5800, Albuquerque, NM 87185 USA. NR 33 TC 12 Z9 14 U1 0 U2 4 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 USA SN 1089-778X J9 IEEE T EVOLUT COMPUT JI IEEE Trans. Evol. Comput. PD AUG PY 2001 VL 5 IS 4 BP 388 EP 397 DI 10.1109/4235.942532 PG 10 WC Computer Science, Artificial Intelligence; Computer Science, Theory & Methods SC Computer Science GA 465JX UT WOS:000170586800007 ER PT J AU Metzler, SD Bowsher, JE Smith, MF Jaszczak, RJ AF Metzler, SD Bowsher, JE Smith, MF Jaszczak, RJ TI Analytic determination of pinhole collimator sensitivity with penetration SO IEEE TRANSACTIONS ON MEDICAL IMAGING LA English DT Article DE collimator; pinhole; sensitivity; single photon emission computed tomography; SPECT ID EMISSION COMPUTED-TOMOGRAPHY; ULTRA-HIGH-RESOLUTION; SPECT; PHANTOM AB Pinhole collimators are widely used to image small organs and animals. The sensitivity of knife-edge pinhole collimators has been previously estimated using an "effective diameter" formulation and experimentally described using a sin(infinity) theta fit, where theta is the angle between the line segment from the center of the aperture to the photon source and its projection onto the plane of the aperture. An analytic form of the sensitivity of the pinhole collimator is derived in this paper. A numerical formula for predicting the sin(infinity) theta form of the sensitivity is calculated from the analytic form. Experimental data are compared with the theoretical estimate and the sin(infinity) theta prediction. The agreement is excellent. C1 Duke Univ, Med Ctr, Div Nucl Med, Durham, NC 27710 USA. Thomas Jefferson Univ, Natl Accelerator Facil, Newport News, VA 23606 USA. RP Metzler, SD (reprint author), Duke Univ, Med Ctr, Div Nucl Med, POB 3949, Durham, NC 27710 USA. FU NCI NIH HHS [CA76006, CA33541] NR 20 TC 115 Z9 118 U1 1 U2 4 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 USA SN 0278-0062 J9 IEEE T MED IMAGING JI IEEE Trans. Med. Imaging PD AUG PY 2001 VL 20 IS 8 BP 730 EP 741 DI 10.1109/42.938241 PG 12 WC Computer Science, Interdisciplinary Applications; Engineering, Biomedical; Engineering, Electrical & Electronic; Imaging Science & Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging SC Computer Science; Engineering; Imaging Science & Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging GA 460QM UT WOS:000170320100005 PM 11513024 ER PT J AU Qi, JY Huesman, RH AF Qi, JY Huesman, RH TI Theoretical study of lesion detectability of MAP reconstruction using computer observers SO IEEE TRANSACTIONS ON MEDICAL IMAGING LA English DT Article DE computer observer; lesion detection; MAP estimation; positron emission tomography ID POSITRON-EMISSION-TOMOGRAPHY; BAYESIAN IMAGE-RECONSTRUCTION; PENALIZED MAXIMUM-LIKELIHOOD; FILTERED BACKPROJECTION; DETECTION PERFORMANCE; HEPATIC SPECT; PET IMAGES; NOISE; QUALITY; OPTIMIZATION AB The low signal-to-noise ratio (SNR) in emission data has stimulated the development of statistical image reconstruction methods based on the maximum a posteriori (MAP) principle. Experimental examples have shown that statistical methods improve image quality compared to the conventional filtered backprojection (FBP) method. However, these results depend on isolated data sets. Here we study the lesion detectability of MAP reconstruction theoretically, using computer observers. These theoretical results can be applied to different object structures. They show that for a quadratic smoothing prior, the lesion detectability using the prewhitening observer is independent of the smoothing parameter and the neighborhood of the prior, while the nonprewhitening observer exhibits an optimum smoothing point. We also compare the results to those of FBP reconstruction. The comparison shows that for ideal positron emission tomography (PET) systems (where data are true line integrals of the tracer distribution) the MAP reconstruction has a higher SNR for lesion detection than FBP reconstruction due to the modeling of the Poisson noise. For realistic systems, MAP reconstruction further benefits from accurately modeling the physical photon detection process in PET. C1 Lawrence Berkeley Natl Lab, Ctr Funct Imaging, Berkeley, CA 94720 USA. RP Qi, JY (reprint author), Lawrence Berkeley Natl Lab, Ctr Funct Imaging, 1 Cyclotron Rd,MS 55-121, Berkeley, CA 94720 USA. RI Qi, Jinyi/A-1768-2010 OI Qi, Jinyi/0000-0002-5428-0322 FU NCI NIH HHS [R01 CA 59794]; NHLBI NIH HHS [P01 HL25840] NR 36 TC 64 Z9 64 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 USA SN 0278-0062 J9 IEEE T MED IMAGING JI IEEE Trans. Med. Imaging PD AUG PY 2001 VL 20 IS 8 BP 815 EP 822 DI 10.1109/42.938249 PG 8 WC Computer Science, Interdisciplinary Applications; Engineering, Biomedical; Engineering, Electrical & Electronic; Imaging Science & Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging SC Computer Science; Engineering; Imaging Science & Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging GA 460QM UT WOS:000170320100013 PM 11513032 ER PT J AU Li, Z AF Li, Z TI Simulations of electric potential and field profiles in Si microstrip detectors using the guard-strip concept SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE depletion voltage; field breakdown; guard-strip; microstrip detectors; radiation hardness; Si detectors; simulations ID SILICON DETECTORS AB Two-dimensional (2-D) simulations of the electrical properties of Si microstrip detectors with various strip width/pitch configurations have been systematically performed using a processing and device simulation tool. It has been found that the detector full depletion voltage (V-fd) depends greatly on the ratios of strip width (W) to pitch (P) and pitch to detector thickness (d). V-fd increases with the decreasing ratio of W/P : V-fd for W/P = 0.1 (P = 100 mum) and is almost twice that of a bulk detector (W/P = 1) for different bulk resistivities (simulation of before and after radiation). The increasing rate of Vfd with decreasing W/P is much higher when W/P < 0.3. It has also been found that, for a given strip width, the strip pitch should be kept smaller than the sum of detector thickness and strip width, i.e., P < d + W or P < d (if W much less than d). Otherwise, the value of V-fd will be affected significantly (much larger than that of a bulk detector). It is clearly shown through the simulation that this increase of Vfd is due to the lateral depletion from the strip edge. A new width/pitch configuration with guard strips is proposed, which has shown great promise to push the W/P ratio down to 0.1 without greatly affecting the detector full depletion voltage. C1 Brookhaven Natl Lab, Upton, NY 11973 USA. RP Brookhaven Natl Lab, Upton, NY 11973 USA. EM zhengl@bnl.gov NR 11 TC 2 Z9 2 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9499 EI 1558-1578 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD AUG PY 2001 VL 48 IS 4 BP 977 EP 981 DI 10.1109/23.958708 PN 1 PG 5 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 483XC UT WOS:000171660300006 ER PT J AU Castoldi, A Guazzoni, C Rehak, P Struder, L AF Castoldi, A Guazzoni, C Rehak, P Struder, L TI Spectroscopic-grade X-ray imaging up to 100-kHz frame rate with controlled-drift detectors SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE controlled-drift detector; fast readout; X-ray imaging ID DEVICE AB Controlled-drift detectors are fully depleted silicon detectors for X-ray imaging that combine good position resolution with very fast frame readout. The basic feature of the controlled-drift detector is the transport of the charge packets stored in each pixel column to the output electrode by means of a uniform drift field. The drift time of the charge packet identifies the pixel of incidence. Images of an X-ray source obtained with the controlled-drift detector up to 100-kHz frame rate are presented and discussed. The achievable energy resolution as a function of the operating temperature and frame rate is analyzed. C1 Politecn Milan, Dipartimento Ingn Ucl CeSNEF, I-20133 Milan, Italy. Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy. Politecn Milan, Dipartimento Elettron & Informat, I-20133 Milan, Italy. Brookhaven Natl Lab, Instrumentat Div, Upton, NY 11973 USA. Max Planck Inst, Halbleiterlab, D-81739 Munich, Germany. RP Castoldi, A (reprint author), Politecn Milan, Dipartimento Ingn Ucl CeSNEF, I-20133 Milan, Italy. RI Guazzoni, Chiara/A-5070-2008 OI Guazzoni, Chiara/0000-0001-6399-8670 NR 3 TC 19 Z9 18 U1 0 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD AUG PY 2001 VL 48 IS 4 BP 982 EP 986 DI 10.1109/23.958709 PN 1 PG 5 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 483XC UT WOS:000171660300007 ER PT J AU Ratner, MA Grinyov, BV Ratner, AM Hrynova, TB AF Ratner, MA Grinyov, BV Ratner, AM Hrynova, TB TI Radiation-induced vacancy aggregation modes and radiation changes in optical and scintillation properties of insulator crystals SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE radiation effects; radiation hardening ID LUMINESCENCE; RELAXATION; ABSORPTION; STATES; DAMAGE AB The mechanism of radiation changes involves both the formation of vacancy clusters (pores) from photoproduced vacancies and the optical manifestations of pores. The growth of pores is controlled by dislocations (serving as sinks for interstitials generated simultaneously with vacancies). Depending on dislocation density, the total surface of growing pores can vary with radiation dose in quite different ways. This permits one to control crystal properties via a chosen regime of irradiation. Optically, radiation-produced pores manifest themselves as follows: 1) in excitonic absorption, which strongly exceeds the absorption of usual color centers of the same concentration and can be used for estimating the concentration of pores and 2) via trapping excitons inside the exciton band, thus enhancing intrinsic luminescence and diminishing the luminescence of the dope impurity. This paper presents a joint review of the above aspects of the vacancy cluster physics which were developed separately in recent publications of the authors. C1 Natl Acad Sci Ukraine, Inst Single Crystals, UA-61001 Kharkov, Ukraine. Natl Acad Sci Ukraine, Inst Low Temp Phys & Engn, UA-61164 Kharkov, Ukraine. Stanford Linear Accelerator Ctr, Stanford, CA 94309 USA. RP Ratner, MA (reprint author), Natl Acad Sci Ukraine, Inst Single Crystals, UA-61001 Kharkov, Ukraine. NR 18 TC 0 Z9 0 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD AUG PY 2001 VL 48 IS 4 BP 1101 EP 1107 DI 10.1109/23.958731 PN 1 PG 7 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 483XC UT WOS:000171660300029 ER PT J AU Manfredi, PF Millaud, JE Sushkov, VV AF Manfredi, PF Millaud, JE Sushkov, VV TI Acquisition and processing of multiparametric information from a pixel matrix SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE monolithic readout of pixel detectors ID DETECTOR AB This paper addresses the design of a system intended to readout multiparametric information from a matrix of pixels. The system presented here acquires the charge associated with the signal and provides a timing information from each pixel. Although it lends itself to a broad range of time-correlated imaging situations involving any kind of pixel matrices, the design constraints assumed here are particularly tailored to the application with pixels that sense the output charge distribution from a micro channel plate (MCP). The combination of a microchannel plate and a pixel matrix is an extremely versatile detector and the readout system must be able to fully exploit the intrinsically high position resolution and time accuracy featured by the MCP The behavior of the readout system described in this paper is based upon advanced concepts to meet the above application requirements and is believed to provide a significant functional improvement over the conventional pixel systems. C1 Univ Pavia, I-27100 Pavia, Italy. Ist Nazl Fis Nucl, I-27100 Pavia, Italy. Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Manfredi, PF (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. NR 7 TC 3 Z9 3 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD AUG PY 2001 VL 48 IS 4 BP 1244 EP 1248 DI 10.1109/23.958759 PN 1 PG 5 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 483XC UT WOS:000171660300058 ER PT J AU Qi, JY Klein, GJ Huesman, RH AF Qi, JY Klein, GJ Huesman, RH TI Image properties of list-mode likelihood reconstruction for a rectangular positron emission mammograph with DOI measurements SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE image analysis; MAP estimation; positron emission tomography (PET) ID MAXIMUM-LIKELIHOOD; PET; DEPTH AB A positron emission mammography scanner is under development at our laboratory. The tomograph has a rectangular geometry consisting of four banks of detector modules. For each detector, the system can measure the depth of interaction information inside the crystal. The rectangular geometry leads to irregular radial and angular sampling and spatially variant sensitivity that are different from conventional positron emission tomography (PET) systems. We adapted the theoretical analysis that we had developed for conventional PET systems to the list-mode likelihood reconstruction for this tomograph. The local impulse response and covariance of the reconstruction can be easily computed using the fast Fourier transform. These theoretical results are also used with computer observer models to compute the signal-to-noise ratio for lesion detection. The analysis reveals the spatially variant resolution and noise properties of the list-mode likelihood reconstruction. The theoretical predictions are in good agreement with Monte Carlo results. C1 Lawrence Berkeley Lab, Ctr Funct Imaging, Berkeley, CA 94720 USA. RP Qi, JY (reprint author), Lawrence Berkeley Lab, Ctr Funct Imaging, Berkeley, CA 94720 USA. RI Qi, Jinyi/A-1768-2010 OI Qi, Jinyi/0000-0002-5428-0322 NR 10 TC 7 Z9 7 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD AUG PY 2001 VL 48 IS 4 BP 1343 EP 1349 DI 10.1109/23.958349 PN 2 PG 7 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 483XG UT WOS:000171660700001 ER PT J AU Maltz, JS AF Maltz, JS TI Optimal time-activity basis selection for exponential spectral analysis: Application to the solution of large dynamic emission tomographic reconstruction problems SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE dynamic emission computed tomography (ECT); kinetic modeling; image reconstruction; myocardial single photon emission tomography (PET); spectral analysis; tracer kinetics ID MIXTURE; MODEL; PET AB The clinical application of dynamic ECT reconstruction algorithms for inconsistent projection (IP) data has been beset with difficulties. These include poor scalability, numerical instability of algorithms, problems of nonuniqueness of solutions, the need to oversimplify tracer kinetics, and impractical computational burden. We present a stable reconstruction algorithm with low computational cost that is able to recover the tracer kinetics of several hundred image regions at realistic noise levels. Through optimal selection of a small set of nonnegative basis functions to describe regional time-activity curves (TACs), we are able to solve for the first-order compartmental model kinetics of each region. A nonuniform resolution pixelization of image space is employed to obtain highest resolution in regions of interest. These spatial and temporal simplifications improve numerical conditioning, provide robustness against noise, and greatly decrease the computational burden of dynamic reconstruction. We apply this algorithm to TP phantom data whose source distribution, kinetics, and count statistics are modeled after a clinical myocardial SPECT dataset. TACs of phantom regions are recovered to within a mean square error of 6%, an accuracy that proves sufficient to allow for quantitative detection of a myocardial perfusion defect within healthy myocardial tissue. C1 Lawrence Berkeley Natl Lab, Dept Funct Imaging, Berkeley, CA 94720 USA. RP Maltz, JS (reprint author), Lawrence Berkeley Natl Lab, Dept Funct Imaging, Berkeley, CA 94720 USA. NR 17 TC 12 Z9 12 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD AUG PY 2001 VL 48 IS 4 BP 1452 EP 1464 DI 10.1109/23.958379 PN 2 PG 13 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 483XG UT WOS:000171660700019 ER PT J AU Qi, JY AF Qi, JY TI Optimization of PET system design for lesion detection SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE lesion detection; optimization methods; positron emission tomography (PET) ID HOTELLING TRACE CRITERION; HIGH-RESOLUTION; RECONSTRUCTION ALGORITHMS; MAXIMUM-LIKELIHOOD; NOISE PROPERTIES; SMALL ANIMALS; EM ALGORITHM; TOMOGRAPHY; VARIANCE; EMISSION AB Traditionally, the figures of merit used in designing a positron emission tomography (PET) scanner are spatial resolution, noise equivalent count rate, noise equivalent sensitivity, etc. These measures, however, do not directly reflect the lesion detectability using the PET scanner. Here we propose to optimize PET scanner design directly for lesion detection. The signal-to-noise ratio (SNR) of lesion detection can be easily computed using the theoretical expressions that we have previously derived. Because no time-consuming Monte Carlo simulation is needed, the theoretical expressions allow evaluation of a large range of parameters. The PET system parameters can then be chosen to achieve the maximum SNR for lesion detection. The simulation study shown in this paper was focused on a single ring PET scanner without depth of interaction measurement. It can be extended to multiring (two- or three-dimensional) PET scanners and detectors with depth of interaction measurement. C1 Lawrence Berkeley Natl Lab, Ctr Funct Imaging, Berkeley, CA 94720 USA. RP Qi, JY (reprint author), Lawrence Berkeley Natl Lab, Ctr Funct Imaging, Berkeley, CA 94720 USA. RI Qi, Jinyi/A-1768-2010 OI Qi, Jinyi/0000-0002-5428-0322 NR 19 TC 9 Z9 9 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD AUG PY 2001 VL 48 IS 4 BP 1470 EP 1476 PN 2 PG 7 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 483XG UT WOS:000171660700021 ER PT J AU Huber, JS Derenzo, SE Qi, J Moses, WW Huesman, RH Budinger, TF AF Huber, JS Derenzo, SE Qi, J Moses, WW Huesman, RH Budinger, TF TI Conceptual design of a compact positron tomograph for prostate imaging SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE biomedical imaging; positron emission tomography ID C-11 CHOLINE PET; CLINICAL-TRIALS; RESOLUTION; RECONSTRUCTION; CANCER; PERFORMANCE; ANTIGEN; SCANNER; TUMOR AB We present a conceptual design of a compact positron tomograph for prostate imaging using a pair of external curved detector banks, one placed above and one below the patient. The lower detector bank is fixed below the patient bed, and the top bank adjusts vertically for maximum sensitivity and patient access. Each bank is composed of 40 conventional block detectors, forming two arcs (44 cm minor, 60 cm major axis) that are tilted to minimize attenuation and positioned as close as possible to the patient to improve sensitivity. The individual detectors are angled to point toward the prostate to minimize resolution degradation in that region. Interplane septa extend 5 cm beyond the scintillator crystals to reduce random and scatter backgrounds. A patient is not fully encircled by detector rings in order to minimize cost, causing incomplete sampling due to the side gaps. Monte Carlo simulation (including randoms and scatter) demonstrates the feasibility of detecting and differentiating partial and whole prostate tumors with a tumor-to-background ratio of 2:1, utilizing the number of events that should be achievable with a 6-min scan after a 10 mCi injection (e.g., carbon-11 choline or fluorine-18 fluorocholine). C1 Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Huber, JS (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RI Qi, Jinyi/A-1768-2010 OI Qi, Jinyi/0000-0002-5428-0322 NR 27 TC 17 Z9 17 U1 0 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD AUG PY 2001 VL 48 IS 4 BP 1506 EP 1511 DI 10.1109/23.958388 PN 2 PG 6 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 483XG UT WOS:000171660700027 ER PT J AU Virador, PRG Moses, WW Huesman, RH Qi, J AF Virador, PRG Moses, WW Huesman, RH Qi, J TI 3-D reconstruction in PET cameras with irregular sampling and depth of interaction SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE filtered backprojection; positron emission tomography (PET); reconstruction algorithms ID POSITRON AB We present three-dimensional (3-D) reconstruction algorithms that address fully 3-D tomographic reconstruction for a septa-less, stationary, and rectangular camera. The field of view (FOV) encompasses the entire volume enclosed by detector modules capable of measuring depth of interaction (DOI). The filtered backprojection-based algorithms incorporate DOI, accommodate irregular sampling, and minimize interpolation in the data by defining lines of response between the measured interaction points. We use fixed-width, evenly spaced radial bins in order to use the fast Fourier transform but use irregular angular sampling to minimize the number of unnormalizable zero efficiency sinogram bins. To address persisting low-efficiency bins, we perform two-dimensional (2-D) nearest neighbor radial smoothing, employ a semi-iterative procedure to estimate the unsampled data, and mash the "in plane" and the first oblique projections to reconstruct the 2-D image in the 3DRP algorithm. We present artifact-free, essentially spatially isotropic images of Monte Carlo data with full-width at half-maximum resolutions of 1.5, 2.3, and 3.1 turn at the center, in the bulk, and in the corners of the FOV, respectively. C1 Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Virador, PRG (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RI Qi, Jinyi/A-1768-2010 OI Qi, Jinyi/0000-0002-5428-0322 NR 8 TC 4 Z9 6 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD AUG PY 2001 VL 48 IS 4 BP 1524 EP 1529 DI 10.1109/23.958391 PN 2 PG 6 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 483XG UT WOS:000171660700030 ER PT J AU Hahn, SF Sullivan, JP van Hecke, HW Simon-Gillo, JE Smith, GD Schlei, BR Sun, A Young, GR Britton, CL Ericson, MN Emery, MS Bobrek, M AF Hahn, SF Sullivan, JP van Hecke, HW Simon-Gillo, JE Smith, GD Schlei, BR Sun, A Young, GR Britton, CL Ericson, MN Emery, MS Bobrek, M TI High density interconnect multi-chip module for the front-end electronics of the PHENIX/MVD (vol 47, pg 802, 2000) SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Correction C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. Dept Energy Headquarters, Germantown, MD 20874 USA. Lockheed Martin GES, Moorestown, NJ 08057 USA. Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Hahn, SF (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. NR 1 TC 0 Z9 0 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD AUG PY 2001 VL 48 IS 4 BP 1605 EP 1605 DI 10.1109/TNS.2001.958403 PN 3 PG 1 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 483XK UT WOS:000171661000010 ER PT J AU Rao, NSV AF Rao, NSV TI On fusers that perform better than best sensor SO IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE LA English DT Article DE sensor fusion; multiple sensor system; information fusion; fusion rule estimation ID EMPIRICAL RISK MINIMIZATION; NONPARAMETRIC-ESTIMATION; LEARNING ALGORITHMS; NEURAL NETWORKS; CLASSIFICATION; CLASSIFIERS; COMBINATION; FUSION AB In a multiple sensor system, sensor S-i, i = 1, 2.... N, outputs Y((i)) epsilon [0, 1], according to an unknown probability distribution P-Y141 \X, in response to input X epsilon [0, 1]. We choose a fuser-that combines the outputs of sensors-from a function class F = {f: [0, 1](N)--> [0, 1]} by minimizing empirical error based on an iid sample. If F satisfies the isolation property, we show that the fuser performs at least as well as the best sensor in a probably approximately correct sense. Several well-known fusers, such as linear combinations, special potential functions, and certain feedforward networks, satisfy the isolation property. C1 Oak Ridge Natl Lab, Div Math & Comp Sci, Oak Ridge, TN 37831 USA. RP Rao, NSV (reprint author), Oak Ridge Natl Lab, Div Math & Comp Sci, Oak Ridge, TN 37831 USA. EM nrao@icesar.epm.ornl.gov OI Rao, Nageswara/0000-0002-3408-5941 NR 45 TC 34 Z9 34 U1 0 U2 2 PU IEEE COMPUTER SOC PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA SN 0162-8828 EI 1939-3539 J9 IEEE T PATTERN ANAL JI IEEE Trans. Pattern Anal. Mach. Intell. PD AUG PY 2001 VL 23 IS 8 BP 904 EP 909 DI 10.1109/34.946993 PG 6 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic SC Computer Science; Engineering GA 460AH UT WOS:000170283300010 ER PT J AU Lunarska, E Ziomek-Moroz, M Michalski, A AF Lunarska, E Ziomek-Moroz, M Michalski, A TI Electrochemical determining of penetrating porosity and the chemical and phase composition of pulse plasma deposited Ti-Al and Ni-Al coatings SO INTERMETALLICS LA English DT Article DE nickel aluminides; based on Ni3Al; nickel aluminides; based on NiAl; titanium aluminides; based on Ti3Al; titanium aluminides; based on TiAl; coatings; intermetallic and otherwise; non-destructive evaluation ID CORROSION-RESISTANCE; TITANIUM NITRIDE AB The electrochemical behavior of Ti-Al and Ni-Al coated iron was compared to that of bulk Ti-Al and Ni-Al-based alloys of defined chemical and phase composition. Bulk pure metals of Al, Ni, Ti, and Fe, intermetallic compounds of Ti3Al, TiAl, TiAl3, Ni3Al, NiAl and several Ti-Al and Ni-Al alloys, as well as pulse-plasma deposited coatings of Ti-Al and Ni-Al on iron were tested in 2 N solutions of HNO3, H2SO4, Na2SO4, H3PO4 and NaOH. The penetrating porosity (permeability) of each coating was determined using an electrolyte in which the electrochemical behavior of Ti-Al and Ni-Al alloys differed from that of the Fe substrate. To estimate the chemical composition of deposits, a relationship between some electrochemical parameters and the Al content established for bulk alloys was used. The phase composition of deposits was estimated by comparing the shape of polarization curves recorded for material coated with aluminides with those for bulk alloys, in the chosen electrolytes. The chemical and phase composition of coatings established by electrochemical methods was in good agreement with the data obtained by EDS and XRD analyses. The electrochemical tests with application of microcell may be used to check the properties of deposited layers and thus, to optimize the process of deposition of alloys and intermetallic compounds. (C) 2001 Elsevier Science Ltd. All rights reserved. C1 Polish Acad Sci, Inst Phys Chem, PL-01224 Warsaw, Poland. US Dept Energy, Albany Res Ctr, Albany, OR USA. Tech Univ Warsaw, PL-00662 Warsaw, Poland. RP Lunarska, E (reprint author), Polish Acad Sci, Inst Phys Chem, Kasprzaka 44-52, PL-01224 Warsaw, Poland. NR 15 TC 3 Z9 3 U1 0 U2 1 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0966-9795 J9 INTERMETALLICS JI Intermetallics PD AUG PY 2001 VL 9 IS 8 BP 711 EP 719 DI 10.1016/S0966-9795(01)00052-8 PG 9 WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering GA 472VV UT WOS:000171006400008 ER PT J AU Pint, BA Regina, JR Prussner, K Chitwood, LD Alexander, KB Tortorelli, PF AF Pint, BA Regina, JR Prussner, K Chitwood, LD Alexander, KB Tortorelli, PF TI Effect of environment on the oxidation of ingot-processed iron aluminides SO INTERMETALLICS LA English DT Article DE iron aluminides (based on Fe3Al); oxidation ID BEHAVIOR; ALLOYS; PERFORMANCE; SCALES; ODS; SEGREGATION; ALUMINUM AB The oxidation behavior of iron aluminides was investigated in various environments at 900 to 1200 degreesC. The effect of water vapor on total specimen mass gain was minimal, At 1000 and 1100 degreesC. the mass gain of Fe-28at.%Al-5Cr without Zr was a factor of 2 or more higher in air than in oxygen or Ar-20%O-2 Nitride formation beneath the external Al2O3 layer was observed in air. (C) 2001 Elsevier Science Ltd. All rights reserved. C1 Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Pint, BA (reprint author), Oak Ridge Natl Lab, POB 2008, Oak Ridge, TN 37831 USA. EM pintba@ornl.gov RI Pruessner, Karin/A-4949-2009; Pint, Bruce/A-8435-2008; Tortorelli, Peter/E-2433-2011 OI Pint, Bruce/0000-0002-9165-3335; NR 26 TC 19 Z9 19 U1 1 U2 5 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0966-9795 J9 INTERMETALLICS JI Intermetallics PD AUG PY 2001 VL 9 IS 8 BP 735 EP 739 DI 10.1016/S0966-9795(01)00051-6 PG 5 WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering GA 472VV UT WOS:000171006400010 ER PT J AU Rees, SJ McGuirk, JJ Haves, P AF Rees, SJ McGuirk, JJ Haves, P TI Numerical investigation of transient buoyant flow in a room with a displacement ventilation and chilled ceiling system SO INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER LA English DT Article AB The air flow in the office ventilation system known as displacement ventilation is dominated by a gravity current from the inlet and buoyant plumes above internal heat sources. Calculations of the flow and heat transfer in a typical office room have been made for this type of ventilation system used in conjunction with chilled ceiling panels. These calculations have been made in parallel with full size test chamber experiments. It has been found that with higher values of internal load (45 and 72 W m(-2) of floor area) the flow becomes quasi-periodic in nature. Complex lateral oscillations are seen in the plumes above the heat sources which impinge on the ceiling and induce significant recirculating flows in the room. The frequency spectra of the transient calculations show good agreement with those of the experimental results. Comparison is also made between calculated mean room air speeds and temperature profiles and measured values. (C) 2001 Elsevier Science Ltd. All rights reserved. C1 Oklahoma State Univ, Sch Mech & Aerosp Engn, Stillwater, OK 74074 USA. Univ Loughborough, Dept Automat & Aeronaut Engn, Loughborough LE11 3TU, Leics, England. Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Rees, SJ (reprint author), Oklahoma State Univ, Sch Mech & Aerosp Engn, 218 Engn N, Stillwater, OK 74074 USA. RI Rees, Simon/H-5517-2012; OI Rees, Simon/0000-0003-4869-1632 NR 19 TC 28 Z9 28 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0017-9310 J9 INT J HEAT MASS TRAN JI Int. J. Heat Mass Transf. PD AUG PY 2001 VL 44 IS 16 BP 3067 EP 3080 DI 10.1016/S0017-9310(00)00348-3 PG 14 WC Thermodynamics; Engineering, Mechanical; Mechanics SC Thermodynamics; Engineering; Mechanics GA 445HT UT WOS:000169452600007 ER PT J AU Mozdarani, H Liu, N Jones, NJ Bryant, PE AF Mozdarani, H Liu, N Jones, NJ Bryant, PE TI The XRCC2 human repair gene influences recombinational rearrangements leading to chromatid breaks SO INTERNATIONAL JOURNAL OF RADIATION BIOLOGY LA English DT Article ID DOUBLE-STRAND BREAKS; ATAXIA-TELANGIECTASIA CELLS; SENSITIVE IRS MUTANTS; HUMAN RAD51 PROTEIN; IONIZING-RADIATION; RESTRICTION ENDONUCLEASES; CHROMOSOMAL-ABERRATIONS; DNA-SYNTHESIS; V79 CELLS; HAMSTER AB Purpose: To test the possible involvement of the XRCC2 gene in the control of intra-versus interchromatid rearrangements leading to chromatid breaks in G(2) cells by studying the Colour-switch ratio (CSR) in harlequin-stained Chinese hamster irs1 cells. Materials and methods: The V79-1 mutant cell lines irs1 (XRCC2 mutation) and irs2 (XRCC8 mutation), two WT V79 lines and GT621-1 (irs1 transfected with the XPLC2 gene) were labelled with BrdU through two cell cycles, irradiated and sampled 1.5 h after exposure. Metaphase spreads were analysed for chromatid break frequency and frequencies of colour-switch (colour-switch between chromatids at the break point) and non-colour-switch breaks, from Which the CSR was calculated. Results: Chromatid breaks were induced linearly with dose in all lines, and frequencies were elevated in irs1 and irs2 mutant Cell lines when Compared with WT lines. An XRCC2 transfected line (GT621-1) showed full radiosensitivity complementation with respect to frequencies, of chromatid breaks. The CSR was significantly higher in irs1 (13.9%) than in the parental V79-4 (7.5%) or irs2 (4.9%) cells. GT621-1 cells showed partial, but significant complementation with respect to CSR (9.2%). Conclusions: It is concluded that the significantly higher CSR for the irs1 mutant than for the Wild-type parental V79-4 line indicates the involvement of the XRCC2 gene product in the control of the rearrangement process leading to chromatid breaks. C1 Univ St Andrews, Sch Biol, St Andrews KY16 9TS, Fife, Scotland. Tarbiat Modarres Univ, Sch Med Sci, Tehran, Iran. Lawrence Livermore Natl Lab, Biol & Biotechnol Res Program, Livermore, CA 94551 USA. Univ Liverpool, Donnan Labs, Sch Biol Sci, Liverpool L69 7ZD, Merseyside, England. RP Bryant, PE (reprint author), Univ St Andrews, Sch Biol, St Andrews KY16 9TS, Fife, Scotland. RI Jones, Nigel/D-1997-2010 NR 40 TC 7 Z9 8 U1 0 U2 1 PU TAYLOR & FRANCIS LTD PI LONDON PA 11 NEW FETTER LANE, LONDON EC4P 4EE, ENGLAND SN 0955-3002 J9 INT J RADIAT BIOL JI Int. J. Radiat. Biol. PD AUG PY 2001 VL 77 IS 8 BP 859 EP 865 DI 10.1080/09553000110054890 PG 7 WC Biology; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging SC Life Sciences & Biomedicine - Other Topics; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging GA 471BV UT WOS:000170907700003 PM 11571019 ER PT J AU Bentley, AE AF Bentley, AE TI Pointing control design for a high precision flight telescope using quantitative feedback theory SO INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL LA English DT Article DE pointing control; quantitative feedback theory; jitter control; precision pointing; flight telescope AB A pointing control system is developed and tested for a flying gimbaled telescope. The two-axis pointing system is capable of sub-microradian pointing stability and high accuracy in the presence of large host vehicle jitter. The telescope also has high agility - it is capable of a 50 degrees retarget (in both axes simultaneously) in less than 2 s. To achieve the design specifications, high-accuracy, high-resolution, two-speed resolvers were used, resulting in gimbal-angle measurements stable to 1.5 mu rad. In addition, on-axis inertial angle displacement sensors were mounted on the telescope to provide host-vehicle jitter cancellation. The inertial angle sensors are accurate to about 100 nrad, but do not measure low-frequency displacements below 2 Hz. The gimbal command signal includes host-vehicle attitude information, which is band-limited. This provides jitter data below 20 Hz, but includes a variable latency between 15 and 25 ms. One of the most challenging aspects of this design was to combine the inertial-angle-sensor data with the less perfect information in the command signal to achieve maximum jitter reduction. The optimum blending of these two signals, along with the feedback compensation were designed using Quantitative Feedback Theory. Copyright (C) 2001 John Wiley & Sons, Ltd. C1 Sandia Natl Labs, Control Subsyst Dept, Albuquerque, NM 87185 USA. RP Bentley, AE (reprint author), Sandia Natl Labs, Control Subsyst Dept, Mail Stop 0501,POB 5800, Albuquerque, NM 87185 USA. NR 3 TC 2 Z9 2 U1 1 U2 3 PU JOHN WILEY & SONS LTD PI W SUSSEX PA BAFFINS LANE CHICHESTER, W SUSSEX PO19 1UD, ENGLAND SN 1049-8923 J9 INT J ROBUST NONLIN JI Int. J. Robust Nonlinear Control PD AUG PY 2001 VL 11 IS 10 BP 923 EP 960 DI 10.1002/rnc.635 PG 38 WC Automation & Control Systems; Engineering, Electrical & Electronic; Mathematics, Applied SC Automation & Control Systems; Engineering; Mathematics GA 476NN UT WOS:000171233800003 ER PT J AU Becker, TL Cannon, RM Ritchie, RO AF Becker, TL Cannon, RM Ritchie, RO TI Finite crack kinking and T-stresses in functionally graded materials SO INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES LA English DT Article DE fracture; crack kinking; functionally graded materials; T-stress ID FRACTURE-MECHANICS AB The optimum direction of in-plane continuous crack advance in functionally graded materials (FGMs) is discussed. The FGM is modeled using finite element analysis as a linear elastic material with spatially varying Young's modulus. The kink direction was determined as the angle at which either the energy release is maximized (G(max)) or at which the kink tip is deformed without shear (K-II = 0). Results are found to asymptote toward that from the infinitesimal short kink analyses for homogeneous materials, based on the local gradient-adjusted phase angle but only for very short kinks. The systematic discrepancy between the finite and infinitesimal results can be accounted forby including the effect of the apparent parallel T-stress. This T-stress is affected by both the far-field parallel loading and, unlike in homogeneous materials, the far-field phase angle. The magnitude of the T-stress is, on average, greater than that for the identical geometry comprised of a homogeneous material. For kink lengths of the same order of the gradient dimension and greater, there is a divergence between the kink angles for the two criteria. In addition, there is a bifurcation in the G(max) results for negative far-field phase angles. This is caused by the competition between the near-tip K-dominant field and the nonsingular gradient-induced terms, which, in turn, reflects differing effects of the far-field loading and the tendency of the crack to move toward the more compliant region within the modulus gradient. (C) 2001 Published by Elsevier Science Ltd. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. Salomon Smith Barney, Fixed Income Res, New York, NY 10013 USA. RP Ritchie, RO (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. RI Ritchie, Robert/A-8066-2008 OI Ritchie, Robert/0000-0002-0501-6998 NR 24 TC 42 Z9 42 U1 1 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0020-7683 J9 INT J SOLIDS STRUCT JI Int. J. Solids Struct. PD AUG PY 2001 VL 38 IS 32-33 BP 5545 EP 5563 DI 10.1016/S0020-7683(00)00379-6 PG 19 WC Mechanics SC Mechanics GA 445YR UT WOS:000169486600005 ER PT J AU Salama, P Assefa, F Talley, L Spiegel, P van der Veen, A Gotway, CA AF Salama, P Assefa, F Talley, L Spiegel, P van der Veen, A Gotway, CA TI Malnutrition, measles, mortality, and the humanitarian response during a famine in Ethiopia SO JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION LA English DT Article ID CHRONIC ENERGY DEFICIENCY; REFUGEE POPULATIONS; HEALTH; SITUATIONS; COMMUNITY; THAILAND; SOMALIA; KOSOVO; STATE; SUDAN AB Context The World Food Programme estimated that 10 million people were at risk of starvation in Ethiopia in 2000 but later reported that a famine had been averted. However, no population-based data on mortality or nutrition existed for Gode district, at the epicenter of the famine in the Somali region of Ethiopia. Objectives To estimate mortality rates, determine the major causes of death, and estimate the prevalence of malnutrition among children and adults for the population of Gode district. Design and Setting Two-stage cluster survey conducted from July 27 through August 1, 2000, which included anthropometric measures and 8-month retrospective mortality data collection. Participants A total of 595 households comprising 4032 people living in Gode district of Ethiopia. Main Outcome Measures Crude mortality rates and mortality rates for children younger than 5 years, causes of death, weight for height of less than -2 z scores among children aged 6 months to 5 years, and body mass index of less than 18.5 kg/m(2) among adults and older persons. Results Of the 595 households, 346 (58.2%) were displaced from their usual places of residence. From December 1999 through July 2000, total of 293 deaths occurred in the sample population; 159 (54.3%) deaths were among children younger than 5 years and 72 (24.6%) were among children aged 5 to 14 years. The crude mortality rate was 3.2/ 10000 per day (95% confidence interval [CI], 2.4-3.8/10000 per day), which is 3 times the cutoff used to define an emergency. The mortality rate for children younger than 5 years was 6.8/10000 per day (95% CI, 5.4-8.2/10000 per day). Approximately 77% of deaths occurred before major relief interventions began in April/May 2000. Wasting contributed to 72.3% of all deaths among children younger than 5 years. Measles alone or in combination with wasting accounted for 35 (22.0%) of 159 deaths among children younger than 5 years and for 12 (16.7%) of 72 deaths among children aged 5 to 14 years. The prevalence rate for wasting (weight for height of <-2 z score) among children aged 6 months to 5 years was 29.1% (95% CI, 24.7%-33.4%). Using a method to adjust body mass index for body shape, the prevalence of undernutrition (body mass index <18.5 kg/m(2)) among adults aged 18 to 59 years was 22.7% (95% CI, 17.9%-27.5%). Conclusions To prevent unnecessary deaths, the humanitarian response to famine needs to be rapid, well coordinated, and based on sound epidemiological evidence. Public health interventions, such as mass measles vaccination campaigns with coverage extended to children aged 12 to 15 years should be implemented as the first priority. The prevalence of wasting and undernutrition among children and adults, respectively, should be assessed in all prolonged, severe famines. C1 CDCP, Epidem Intelligence Serv, Epidemiol Program Off, Natl Ctr Environm Hlth, Atlanta, GA 30341 USA. CDCP, Int Emergency & Refugee Hlth Branch, Div Emergency & Environm Hlth Serv, Natl Ctr Environm Hlth, Atlanta, GA USA. CDCP, Int Emergency & Refugee Hlth Branch, Div Environm Hazards & Hlth Effects, Natl Ctr Environm Hlth, Atlanta, GA USA. Save Children USA, Washington, DC USA. Oak Ridge Inst Sci & Educ, Oak Ridge, TN USA. WHO, Off Reg Humanitarian Coordinator, Addis Ababa, Ethiopia. RP Salama, P (reprint author), CDCP, Epidem Intelligence Serv, Epidemiol Program Off, Natl Ctr Environm Hlth, 4770 Buford Hwy NE,Mailstop F-48, Atlanta, GA 30341 USA. NR 47 TC 83 Z9 83 U1 1 U2 11 PU AMER MEDICAL ASSOC PI CHICAGO PA 515 N STATE ST, CHICAGO, IL 60610 USA SN 0098-7484 J9 JAMA-J AM MED ASSOC JI JAMA-J. Am. Med. Assoc. PD AUG 1 PY 2001 VL 286 IS 5 BP 563 EP 571 DI 10.1001/jama.286.5.563 PG 9 WC Medicine, General & Internal SC General & Internal Medicine GA 458HE UT WOS:000170188300019 PM 11476658 ER PT J AU Pawlowski, RP Salinger, AG Romero, LA Shadid, JN AF Pawlowski, RP Salinger, AG Romero, LA Shadid, JN TI Computational design and analysis of MOVPE reactors SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 13th European Conference on Chemical Vapor Deposition (EUROCVD 13) CY AUG 26-31, 2001 CL GLYFADA, GREECE ID VAPOR-PHASE EPITAXY; FLOW; TRANSPORT; HEAT AB This paper presents a fundamental numerical analysis of flow and heat transfer in a vertical rotating disk reactor. These reactors are commonly used for growing thin films via chemical vapor deposition. Under certain conditions, rotating disk reactors have been found to exhibit multiple steady states, where desirable and undesirable flow patterns co-exist at the same conditions. The focus of this research is to predict the onset of multiplicity with respect to key system parameters, and thereby give guidance on reactor design and operation. Using bifurcation analysis algorithms we directly track what we believe is a global stability limit (the onset of multiple solutions). Results for a model system with constant physical and transport properties along with the Boussinesq approximation are compared to a model with actual fluid properties for nitrogen gas coupled with the ideal gas law. C1 Sandia Natl Labs, Dept Computat Sci, Albuquerque, NM 87185 USA. Sandia Natl Labs, Computat Math & Algorithms Dept, Albuquerque, NM 87185 USA. RP Pawlowski, RP (reprint author), Sandia Natl Labs, Dept Computat Sci, POB 5800, Albuquerque, NM 87185 USA. NR 19 TC 5 Z9 5 U1 0 U2 0 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD AUG PY 2001 VL 11 IS PR3 BP 197 EP 204 PG 8 WC Physics, Multidisciplinary SC Physics GA 475AW UT WOS:000171140300026 ER PT J AU Zemskova, SM Haynes, JA Cooley, KM AF Zemskova, SM Haynes, JA Cooley, KM TI CVD mullite and mullite-alumina corrosion protection coatings for silicon based ceramics SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 13th European Conference on Chemical Vapor Deposition (EUROCVD 13) CY AUG 26-31, 2001 CL GLYFADA, GREECE ID CHEMICAL-VAPOR-DEPOSITION; WATER-VAPOR; OXIDATION AB Application of silicon-based ceramics (SiC, Si3N4) and SiC/SiC composites as high-temperature structural materials requires the development of environmentally resistant coatings due to rapid degradation of the protective silica scale in high temperature water vapor. The CVD method of fabricating dense, high-purity, crystalline mullite (3Al(2)O(3)x2SiO(2)) and mullite-alumina coatings was utilized in this study. The textured mullite coatings were generally comprised of crystalline grains (0.3-0.5 mum) with a columnar structure. Coatings with thickness of less than 2 mum, provided excellent corrosion protection for Si3N4 and SiC/SiC exposed to low-velocity, high pressure (1 MPa) steam at 1200 degreesC. C1 Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Zemskova, SM (reprint author), Oak Ridge Natl Lab, POB 2008,1 Bethel Valley Rd, Oak Ridge, TN 37831 USA. NR 11 TC 2 Z9 3 U1 0 U2 3 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD AUG PY 2001 VL 11 IS PR3 BP 861 EP 867 PG 7 WC Physics, Multidisciplinary SC Physics GA 475AW UT WOS:000171140300108 ER PT J AU Roberts, DE Ribeiro, RM AF Roberts, DE Ribeiro, RM TI Comparison of different treatment regimens for the emergence of new resistance under therapy SO JOURNAL OF ACQUIRED IMMUNE DEFICIENCY SYNDROMES LA English DT Article DE antiretroviral therapy; HIV drug resistance; mathematical models; treatment efficacy; genotypic testing; HIV quasispecies ID DRUG-RESISTANCE; ANTIRETROVIRAL THERAPY; HIV-1 INFECTION; REVERSE-TRANSCRIPTASE; GENOTYPIC RESISTANCE; VIRAL DYNAMICS; TRANSMISSION; LOAD AB Objective: To compare the effects of different therapy regimens on the probability of emergence of new resistant mutants during therapy. Methods: We developed a stochastic model of infection and treatment to calculate the probability of de novo resistance during therapy. We simulated diverse treatment regimens. with different efficacy in controlling HIV replication. We studied the use of genotypic testing to choose treatment protocols specifically tailored against the wild type. Results: The probability of emergence of a previously nonexisting drug-resistant mutant during therapy depends crucially on the drug regimen used. ln particular, therapy protocols targeting the wild-type strain may lead to a higher probability of treatment failure due to resistance. Conversely, targeting the minority strains in the population. which readily mutate into the resistant variety. significantly lowers the probability of a new resistant emerging under therapy. Conclusions: Use of genotypic testing may lead to wrong decisions in the choice of therapy if the population dynamics of production of new resistant mutants is not taken into account. C1 Univ Calif Los Alamos Natl Lab, Theoret Biol & Biophys Grp, Los Alamos, NM 87545 USA. Florida State Univ, Tallahassee, FL 32306 USA. RP Ribeiro, RM (reprint author), Univ Calif Los Alamos Natl Lab, Theoret Biol & Biophys Grp, MS K710, Los Alamos, NM 87545 USA. FU NCRR NIH HHS [RR06555] NR 33 TC 5 Z9 5 U1 0 U2 0 PU LIPPINCOTT WILLIAMS & WILKINS PI PHILADELPHIA PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA SN 1525-4135 J9 J ACQ IMMUN DEF SYND JI J. Acquir. Immune Defic. Syndr. PD AUG 1 PY 2001 VL 27 IS 4 BP 331 EP 335 PG 5 WC Immunology; Infectious Diseases SC Immunology; Infectious Diseases GA 457PG UT WOS:000170145500002 PM 11468420 ER PT J AU Volpe, AM Esser, BK Bianchini, GM AF Volpe, AM Esser, BK Bianchini, GM TI Real-time ocean chemical measurement: at-sea ICP-MS experiments SO JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY LA English DT Article ID PLASMA-MASS-SPECTROMETRY; WATER AB We describe the first at-sea deployment and operation of an inductively coupled plasma mass spectrometer (ICP-MS) for continuous measurement of isotopes and trace element concentrations in sea-water. The purpose of these experiments was to demonstrate that an ICP-MS can be operated in a harsh environment with no degradation in performance. and that accurate trace element data can be acquired on rapid analytical time scales. Evaluation at sea involved performance testing, characterization and calibration of a real-time sea-water analytical methodology, and continuous sea-water profiling over an extended three day transect from the Gulf of California to San Diego. We show that mass spectrometers can rapidly, precisely and accurately determine trace element concentrations in sea-water, thus allowing high-resolution mapping of large areas of surface seawater. This analytical capability represents a significant advance toward real-time observation and characterization of water mass chemistry in dynamic coastal environments. While evaluating the ICP-MS off the coast of Baja California, we discovered barium depletion of 65% in surface waters over tens of kilometres. C1 Lawrence Livermore Natl Lab, Analyt & Nucl Chem Div, Livermore, CA 94550 USA. RP Volpe, AM (reprint author), Lawrence Livermore Natl Lab, Analyt & Nucl Chem Div, L-231, Livermore, CA 94550 USA. RI Esser, Bradley/G-4283-2010 OI Esser, Bradley/0000-0002-3219-4298 NR 11 TC 9 Z9 9 U1 1 U2 2 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD,, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 0267-9477 J9 J ANAL ATOM SPECTROM JI J. Anal. At. Spectrom. PD AUG PY 2001 VL 16 IS 8 BP 801 EP 805 DI 10.1039/b101060n PG 5 WC Chemistry, Analytical; Spectroscopy SC Chemistry; Spectroscopy GA 464XX UT WOS:000170559600003 ER PT J AU Wenk, HR Cont, L Xie, Y Lutterotti, L Ratschbacher, L Richardson, J AF Wenk, HR Cont, L Xie, Y Lutterotti, L Ratschbacher, L Richardson, J TI Rietveld texture analysis of Dabie Shan eclogite from TOF neutron diffraction spectra SO JOURNAL OF APPLIED CRYSTALLOGRAPHY LA English DT Article ID PRESSURE CONTINENTAL-CRUST; RAY-POWDER DIFFRACTION; EAST CENTRAL CHINA; DEFORMATION; ORIENTATION; EXHUMATION; ZONE; MICROSTRUCTURES; TRANSITION; MECHANISMS AB Orientation distributions of garnet and omphacite in eclogite from the ultra-high pressure Dabie Shan belt in east-central China were determined from neutron diffraction data by the Rietveld method. Diffraction spectra were recorded in 16 sample orientations with seven detectors, with a kappa-geometry texture goniometer at the time-of-flight (TOF) neutron facility at the Intense Pulsed Neutron Source (IPNS). The textures of the two minerals were extracted simultaneously from 16 x 7 = 112 diffraction spectra, covering a large portion of the pole figure. The texture analysis was performed both with the Williams- Imhof-Matthies-Vinel (WIMV) method and the harmonic method, implemented in the program package MAUD. The incomplete pole-figure coverage introduced artificial oscillations in the case of the harmonic method. The discrete WIMV method produced better results, which illustrate a more or less random orientation distribution for cubic garnet. Apparently elongated grains turned out to be layers of randomly oriented crystals. Monoclinic omphacite displays a sharp texture, with [001] parallel to the lineation direction. The texture data obtained by neutron diffraction were verified with EBSP (electron backscatter pattern) measurements. C1 Univ Calif Berkeley, Dept Geol & Geophys, Berkeley, CA 94720 USA. Univ Trent, Dipartimento Ingn Mat, I-38050 Trent, Italy. Tech Univ Bergakad, Inst Geol, D-09596 Freiberg, Germany. Argonne Natl Lab, Intense Pulsed Neutron Source, Argonne, IL 60439 USA. RP Wenk, HR (reprint author), European Synchrotron Radiat Facil, BP 220, F-38043 Grenoble, France. RI Lutterotti, Luca/E-2426-2014; OI Lutterotti, Luca/0000-0002-0949-8322; Ratschbacher, Lothar/0000-0001-9960-2084 NR 48 TC 48 Z9 49 U1 0 U2 2 PU MUNKSGAARD INT PUBL LTD PI COPENHAGEN PA 35 NORRE SOGADE, PO BOX 2148, DK-1016 COPENHAGEN, DENMARK SN 0021-8898 J9 J APPL CRYSTALLOGR JI J. Appl. Crystallogr. PD AUG PY 2001 VL 34 BP 442 EP 453 DI 10.1107/S0021889801005635 PN 4 PG 12 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA 455TJ UT WOS:000170043600004 ER PT J AU Zhong, Z Kao, CC Siddons, DP Hastings, JB AF Zhong, Z Kao, CC Siddons, DP Hastings, JB TI Sagittal focusing of high-energy synchrotron X-rays with asymmetric Laue crystals. I. Theoretical considertions SO JOURNAL OF APPLIED CRYSTALLOGRAPHY LA English DT Article ID MONOCHROMATOR; RADIATION; DIFFRACTION; GEOMETRY; OPTICS AB The ability of asymmetric Laue crystals to focus X-rays sagittally is demonstrated. The extent of such focusing is similar to that of sagittal focusing by a Bragg crystal, except for a factor related to the asymmetry angle. The anticlastic bending facilitates the use of inverse-Cauchois geometry in the meridional plane to provide better energy resolution and to increase the photon flux by an order of magnitude compared with traditional sagittal focusing with Bragg crystals. Furthermore, for sagittal focusing at X-ray energies above 30 keV, a Laue crystal is preferred to a Bragg crystal because the length of the beam's footprint on a Laue crystal, unlike on a Bragg crystal, is a small and insensitive to energy. The conditions imposed on the asymmetry angle of the Laue crystal to achieve simultaneous sagittal focusing and inverse-Cauchois geometry in the meridional plane are derived for both single-crystal and double-crystal fixed-exit sagittally focusing monochromators. C1 Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA. RP Zhong, Z (reprint author), Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA. NR 23 TC 37 Z9 38 U1 0 U2 9 PU MUNKSGAARD INT PUBL LTD PI COPENHAGEN PA 35 NORRE SOGADE, PO BOX 2148, DK-1016 COPENHAGEN, DENMARK SN 0021-8898 J9 J APPL CRYSTALLOGR JI J. Appl. Crystallogr. PD AUG PY 2001 VL 34 BP 504 EP 509 DI 10.1107/S0021889801006409 PN 4 PG 6 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA 455TJ UT WOS:000170043600013 ER PT J AU Wright, AF AF Wright, AF TI Interaction of hydrogen with gallium vacancies in wurtzite GaN SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID CHEMICAL-VAPOR-DEPOSITION; ELECTRON BEAM IRRADIATION; TOTAL-ENERGY CALCULATIONS; WAVE BASIS-SET; NATIVE DEFECTS; MOLECULAR-DYNAMICS; MG; ACTIVATION; NITRIDE; METALS AB First-principles techniques are used to investigate the interaction of hydrogen with gallium vacancies in wurtzite GaN. The calculations reveal that hydrogen can either compensate a vacancy by donating an electron to a vacancy acceptor level, or passivate the vacancy by forming a hydrogen-vacancy complex. A gallium vacancy can bind up to four hydrogen atoms, and hydrogen removal energies are computed as a function of the number of hydrogen atoms. Removal energies are found to depend strongly on Fermi level and complexes containing more than two hydrogen atoms are predicted to be unstable in n-type GaN. Hydrogen vibration frequencies are computed and compared with previously reported infrared absorption measurements for hydrogen-implanted GaN. (C) 2001 American Institute of Physics. C1 Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM afwrigh@sandia.gov NR 25 TC 49 Z9 49 U1 3 U2 9 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD AUG 1 PY 2001 VL 90 IS 3 BP 1164 EP 1169 DI 10.1063/1.1383980 PG 6 WC Physics, Applied SC Physics GA 452PR UT WOS:000169868300011 ER PT J AU Saha, S Krupanidhi, SB AF Saha, S Krupanidhi, SB TI Transient analysis in Al-doped barium strontium titanate thin films grown by pulsed laser deposition SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID RANDOM-ACCESS MEMORIES; ELECTRICAL-PROPERTIES; ABLATED (BA; MICROSTRUCTURE; DEGRADATION AB Thin films of (Ba0.5Sr0.5)TiO3 (BST) with different concentrations of Al doping were grown using a pulsed laser deposition technique. dc leakage properties were studied as a function of Al doping level and compared to that of undoped BST films. With an initial Al doping level of 0.1 at. % which substitutes Ti in the lattice site, the films showed a decrease in the leakage current, however, for 1 at. % Al doping level the leakage current was found to be relatively higher. Current time measurements at elevated temperatures on 1 at. % Al doped BST films revealed space-charge transient type characteristics. A complete analysis of the transient characteristics was carried out to identify the charge transport process through variation of applied electric field and ambient temperature. The result revealed a very low mobility process comparable to ionic motion, and was found responsible for the observed feature. Calculation from ionic diffusivity and charge transport revealed a conduction process associated with an activation energy of around 1 eV. The low mobility charge carriers were identified as oxygen vacancies in motion under the application of electric field. Thus a comprehensive understanding of the charge transport process in highly acceptor doped BST was developed and it was conclusive that the excess of oxygen vacancies created by intentional Al doping give rise to space-charge transient type characteristics. (C) 2001 American Institute of Physics. C1 Indian Inst Sci, Ctr Mat Res, Bangalore 560012, Karnataka, India. RP Krupanidhi, SB (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. NR 19 TC 11 Z9 11 U1 0 U2 9 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD AUG 1 PY 2001 VL 90 IS 3 BP 1250 EP 1254 DI 10.1063/1.1384493 PG 5 WC Physics, Applied SC Physics GA 452PR UT WOS:000169868300023 ER PT J AU Tinkle, MD Barlow, SE AF Tinkle, MD Barlow, SE TI Image charge forces inside conducting boundaries SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID FREQUENCY-SHIFT; PENNING TRAPS; ION TRAPS; ELECTRON; CYCLOTRON; PLASMAS AB The common description of the electrostatic force, F(x)=-q del phi (x), provides an incomplete description of the force on the charge q at a point x when the charge itself induces additional fields, e.g., image charges, polarizations, etc. The equation may be corrected through the introduction of a "pseudopotential" formalism. Exploration of some of the elementary properties of the pseudopotential demonstrates its essential simplicity. This simplicity allows it to be incorporated directly into dynamics calculations. We explicitly evaluate the pseudopotential in a number of simple but important cases including the sphere, parallel plates, the rectangular prism, and the cylindrical box. The pseudopotential formalism may be expanded to include extended charge distributions; in this latter form we are able to directly apply the results to experimental measurements. (C) 2001 American Institute of Physics. C1 Pacific NW Natl Lab, WR Wiley Environm Mol Sci Lab, Richland, WA 99352 USA. RP Barlow, SE (reprint author), Dynam Technol Inc, 21311 Hawthorne Blvd,Suite 300, Torrance, CA 90503 USA. NR 22 TC 16 Z9 16 U1 0 U2 8 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD AUG 1 PY 2001 VL 90 IS 3 BP 1612 EP 1624 DI 10.1063/1.1383016 PG 13 WC Physics, Applied SC Physics GA 452PR UT WOS:000169868300077 ER PT J AU Knickelbein, MB AF Knickelbein, MB TI Nickel clusters: The influence of adsorbed CO on magnetic moments SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID ELECTRONIC-STRUCTURE; CHEMICAL CHARACTERIZATION; METAL-CLUSTERS; FREE COBALT; 2; NI(110); STATES; BEAMS; IRON AB Stern-Gerlach magnetic deflection measurements were performed on Ni-n and NinCO (n=8-18) in a molecular beam experiment. Adsorbed carbon monoxide was found to reduce the magnetic moments of most nickel clusters in this size range. For Ni-8, the reduction was similar to5 bohr magnetons, while smaller reductions were observed for the other clusters. The present results are in qualitative accord with previous experiments and calculations of the magnetization quenching effects of CO on both nickel nanoparticles and thin nickel films. The magnitude of the changes in cluster magnetic moments of Ni-8, Ni-15, and Ni-18 were larger than those predicted by the local quenching (bond number) model, indicating that the CO-induced perturbation to cluster electronic structure in these clusters is distributed among many nickel atoms. (C) 2001 American Institute of Physics. C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. RP Knickelbein, MB (reprint author), Argonne Natl Lab, Div Chem, 9700 S Cass Ave, Argonne, IL 60439 USA. NR 35 TC 34 Z9 34 U1 1 U2 8 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD AUG 1 PY 2001 VL 115 IS 5 BP 1983 EP 1986 DI 10.1063/1.1388542 PG 4 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 453QQ UT WOS:000169927700001 ER PT J AU Gwaltney, SR Head-Gordon, M AF Gwaltney, SR Head-Gordon, M TI A second-order perturbative correction to the coupled-cluster singles and doubles method: CCSD(2) SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID CORRELATED MOLECULAR CALCULATIONS; PRODUCT DECOMPOSITION APPROACH; GAUSSIAN-BASIS SETS; ELECTRONIC-STRUCTURE; WAVE-FUNCTIONS; ATOMIZATION ENERGIES; ANALYTIC GRADIENTS; MODEL; EQUATION; 5TH-ORDER AB Recently, we introduced a new ansatz for developing perturbative corrections to methods based on coupled-cluster theory. In this article we apply this ansatz to the coupled-cluster singles and doubles (CCSD) method, generating the CCSD(2) method. We use the CCSD(2) method to study the double dissociation of water and to calculate spectroscopic constants of first row diatomic molecules. As long as Hartree-Fock is a reasonable approximation, CCSD(2) works very well. (C) 2001 American Institute of Physics. C1 Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. RP Gwaltney, SR (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. OI Gwaltney, Steven/0000-0003-3833-5087 NR 51 TC 129 Z9 129 U1 1 U2 3 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD AUG 1 PY 2001 VL 115 IS 5 BP 2014 EP 2021 DI 10.1063/1.1383589 PG 8 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 453QQ UT WOS:000169927700006 ER PT J AU Song, Y Ng, CY Jarvis, GK Dressler, RA AF Song, Y Ng, CY Jarvis, GK Dressler, RA TI Rotational-resolved pulsed field ionization-photoelectron study of NO+(A ' (1)Sigma(-),v(+)=0-17) in the energy range of 17.70-20.10 eV SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID SYNCHROTRON-RADIATION; POTENTIAL-ENERGY; NITRIC-OXIDE; SPECTROSCOPY; THRESHOLD; PHOTOIONIZATION; BANDS; V(+)=0-38); CURVES; STATES AB We have obtained partially rotationally resolved pulsed field ionization-photoelectron (PFI-PE) spectra of NO in the energy range of 17.70-20.10 eV, covering ionization transitions of NO+(A' (1)Sigma (-),v(+)=0-17,J(+))<-- NO(X (2)Pi (3/2,1/2),v'=0,J'). The PFI-PE bands for NO+(A' (1)Sigma (-),v(+)=0-17) obtained here represent the first spectroscopic data that allow the direct determination of rotational constants for these states. As in previous studies, the PFI-PE bands are simulated using the Buckingham-Orr-Sichel model as an empirical scheme to derive reliable spectroscopic constants. The simulation, together with comparison with previous He I photoelectron data, has also provided information on intensity enhancements of PFI-PE bands. Accurate spectroscopic constants for NO+(A' (1)Sigma (-),v(+)=0-17) obtained in the present study include ionization energies, vibrational constants (omega (e)=1272.03 +/-1.45 cm(-1), omega (e)chi (e)=11.924 +/-0.188 cm(-1), and omega (e)y(e)=-0.059 +/-0.007 cm(-1)), and rotational constants [B-e=1.3562 +/-0.0024 cm(-1), alpha (e)=0.017 80 +/-0.000 61 cm(-1), and gamma (e)=-(1.574 +/-0.328)x10(-4) cm(-1)]. The simulation indicates that continuum photoelectron states can be formed with orbital angular momenta l up to 5, which corresponds to the maximum total angular momentum transfer of \DeltaJ\=13/2. Since the dominant rotational branches observed are DeltaJ=+/-1/2, +/-3/2, +/-5/2, +/-7/2, and +9/2, we conclude that continuum photoelectron states are predominantly produced in l=0-3 in the threshold photoionization of NO(X (2)Pi (3/2,1/2)) to form NO+(A' (1)Sigma (-),v(+)=0-17). (C) 2001 American Institute of Physics. C1 Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA. Iowa State Univ, Dept Chem, Ames, IA 50011 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. USAF, Res Lab, Space Vehicles Directorate, Hanscom AFB, MA 01731 USA. RP Ng, CY (reprint author), Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA. NR 32 TC 4 Z9 4 U1 0 U2 3 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD AUG 1 PY 2001 VL 115 IS 5 BP 2101 EP 2108 DI 10.1063/1.1385522 PG 8 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 453QQ UT WOS:000169927700017 ER PT J AU Forsythe, KM Gray, SK Klippenstein, SJ Hall, GE AF Forsythe, KM Gray, SK Klippenstein, SJ Hall, GE TI An ab initio molecular dynamics study of S-0 ketene fragmentation SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID FLEXIBLE TRANSITION-STATES; POTENTIAL-ENERGY SURFACE; STATISTICAL-THEORIES; CHEMICAL KINETICS; BRANCHING RATIO; SINGLET KETENE; PHOTODISSOCIATION; DISSOCIATION; DISTRIBUTIONS; CH2CO AB The dynamical origins of product state distributions in the unimolecular dissociation of S-0 ketene, CH2CO ((X) over tilde (1)A(1))--> CH2((a) over tilde (1)A(1))+CO, are studied with ab initio molecular dynamics. We focus on rotational distributions associated with ground vibrational state fragments. Trajectories are integrated between an inner, variational transition state (TS) and separated fragments in both the dissociative and associative directions. The average rotational energy in both CO and CH2 fragments decreases during the motion from the TS to separated fragments. However, the CO distribution remains slightly hotter than phase space theory (PST) predictions, whereas that for CH2 ends up significantly colder than PST, in good agreement with experiment. Our calculations do not, however, reproduce the experimentally observed correlations between CH2 and CO rotational states, in which the simultaneous formation of low rotational levels of each fragment is suppressed relative to PST. A limited search for nonstatistical behavior in the strong interaction region also fails to explain this discrepancy. (C) 2001 American Institute of Physics. C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. Case Western Reserve Univ, Dept Chem, Cleveland, OH 44106 USA. Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. RP Forsythe, KM (reprint author), Argonne Natl Lab, Div Chem, 9700 S Cass Ave, Argonne, IL 60439 USA. RI Hall, Gregory/D-4883-2013; OI Hall, Gregory/0000-0002-8534-9783; Klippenstein, Stephen/0000-0001-6297-9187 NR 42 TC 16 Z9 16 U1 0 U2 2 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-9606 EI 1089-7690 J9 J CHEM PHYS JI J. Chem. Phys. PD AUG 1 PY 2001 VL 115 IS 5 BP 2134 EP 2145 DI 10.1063/1.1384455 PG 12 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 453QQ UT WOS:000169927700021 ER PT J AU Ally, MR Clegg, SL Braunstein, J Simonson, JM AF Ally, MR Clegg, SL Braunstein, J Simonson, JM TI Activities and osmotic coefficients of tropospheric aerosols: (NH4)(2)SO4(aq) and NaCl(aq) SO JOURNAL OF CHEMICAL THERMODYNAMICS LA English DT Article DE aqueous electrolytes; activities; thermodynamics; adsorption; aerosols; troposphere; aerosol chemistry; mixed-solvents; BET; solutions ID THERMODYNAMIC PROPERTIES; CONCENTRATED-SOLUTIONS; HIGH SUPERSATURATION; AQUEOUS (NH4)(2)SO4; WATER ACTIVITIES; BET MODEL; ELECTROLYTES; ADSORPTION; TEMPERATURE; SULFATES AB The theory of multilayer adsorption for concentrated aqueous electrolytes developed by Ally and Braunstein (1998) is used to calculate the thermodynamic activities and osmotic coefficients of supersaturated solutions of (NH4)(2)SO4 (aq) and NaCl (aq) which are among man-made aerosols of atmospheric importance. The basis of the model is the postulate of Stokes and Robinson that concentrated aqueous electrolytes may be viewed as an irregular ionic lattice structure. Application to the electrolytes mentioned above is a special case of the generalized results which are proven (Ally and Braunstein, Braunstein and Ally) to be consistent with the Gibbs-Duhem equation. Calculated thermodynamic properties are compared against experimental data from isopiestic and electrodynamic balance (EDB) measurements. (C) 2001 Academic Press. C1 Oak Ridge Natl Lab, Div Energy, Oak Ridge, TN 37831 USA. Univ E Anglia, Sch Environm Sci, Norwich NR4 7TJ, Norfolk, England. Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA. RP Ally, MR (reprint author), Oak Ridge Natl Lab, Div Energy, Oak Ridge, TN 37831 USA. NR 22 TC 35 Z9 35 U1 2 U2 9 PU ACADEMIC PRESS LTD PI LONDON PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND SN 0021-9614 J9 J CHEM THERMODYN JI J. Chem. Thermodyn. PD AUG PY 2001 VL 33 IS 8 BP 905 EP 915 PG 11 WC Thermodynamics; Chemistry, Physical SC Thermodynamics; Chemistry GA 501ZM UT WOS:000172717900007 ER PT J AU Li, L Yolcubal, I Sandrin, S Hu, MQ Brusseau, ML AF Li, L Yolcubal, I Sandrin, S Hu, MQ Brusseau, ML TI Biodegradation during contaminant transport in porous media: 3. Apparent condition-dependency of growth-related coefficients SO JOURNAL OF CONTAMINANT HYDROLOGY LA English DT Article DE biodegradation; numerical simulation; growth-related parameters; contaminant transport ID AQUIFER MATERIAL; DEGRADATION; BENZOATE; MODEL; GROUNDWATER; SORPTION; PLUME; 2,4-D; SOIL AB The biodegradation of organic contaminants in the subsurface has become a major focus of attention, in part, due to the tremendous interest in applying in situ biodegradation and natural attenuation approaches for site remediation. The biodegradation and transport of contaminants is influenced by a combination of microbial and physicochemical properties and processes. The purpose of this paper is to investigate the impact of hydrodynamic residence time, substrate concentration, and growth-related factors on the simulation of contaminant biodegradation and transport, with a specific focus on potentially condition-dependent growth coefficients. Two sets of data from miscible-displacement experiments, performed with different residence times and initial solute concentrations, were simulated using a transport model that includes biodegradation described by the Monod nonlinear equations and which incorporates microbial growth and oxygen limitation. Two variations of the model were used, one wherein metabolic lag and cell transport are explicitly accounted for, and one wherein they are not. The magnitude of the maximum specific growth rates obtained from calibration of the column-experiment results using the simpler model exhibits dependency on pore-water velocity and initial substrate concentration (C-0) for most cases. Specifically, the magnitude of lt., generally increases with increasing pore-water velocity for a specific C-0, and increases with decreasing C-0 for a specific pore-water velocity. Conversely, use of the model wherein observed tag and cell elution are explicitly accounted for produces growth coefficients that are similar. both to each other and to the batch-measured value. These results illustrate the potential condition-dependency of calibrated coefficients obtained from the use of models that do not account explicitly for all pertinent processes influencing transport of reactive solutes. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Univ Arizona, Dept Soil Water & Environm Sci, Tucson, AZ 85721 USA. Univ Arizona, Dept Hydrol & Water Resources, Tucson, AZ 85721 USA. Univ Arizona, Lawrence Berkeley Natl Lab, Tucson, AZ 85721 USA. RP Brusseau, ML (reprint author), Univ Arizona, Dept Soil Water & Environm Sci, 429 Shantz Blvd,38, Tucson, AZ 85721 USA. RI Hu, Qinhong/C-3096-2009; yolcubal, irfan/K-7190-2012 OI Hu, Qinhong/0000-0002-4782-319X; yolcubal, irfan/0000-0003-0207-628X NR 31 TC 7 Z9 9 U1 0 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0169-7722 J9 J CONTAM HYDROL JI J. Contam. Hydrol. PD AUG PY 2001 VL 50 IS 3-4 BP 209 EP 223 DI 10.1016/S0169-7722(01)00111-5 PG 15 WC Environmental Sciences; Geosciences, Multidisciplinary; Water Resources SC Environmental Sciences & Ecology; Geology; Water Resources GA 461KR UT WOS:000170363900003 PM 11523325 ER PT J AU Marshall, GW Habelitz, S Gallagher, R Balooch, M Balooch, G Marshall, SJ AF Marshall, GW Habelitz, S Gallagher, R Balooch, M Balooch, G Marshall, SJ TI Nanomechanical properties of hydrated carious human dentin SO JOURNAL OF DENTAL RESEARCH LA English DT Article DE carious dentin; transparent dentin; atomic force microscopy; nanoindentation ID HARDNESS AB Most restorative materials are bonded to caries-affected dentin that has altered structure. We tested the hypothesis that hydrated dentin of the transparent zone did not have increased hardness or elastic modulus. Nanoindentation by modified AFM was used to determine site-specific elastic modulus and hardness for components of hydrated dentin from 8 carious and non-carious human teeth. Indentations in intertubular dentin were made at intervals from pulp through the affected layers (subtransparent, transparent, and discolored zones). The values of intertubular dentin increased slightly from near the pulp into the transparent zone, then remained constant or decreased slightly through transparent dentin (E, 18.3 GPa, H, 0.8 GPa, confirming the hypothesis), and decreased markedly through the discolored region. Peritubular dentin values were unaltered in transparent dentin, and intratubular mineral had values between those of normal peritubular and intertubular dentin. Superficial areas contained distorted tubules without peritubular dentin or intratubular mineral. C1 Univ Calif San Francisco, Div Biomat & Bioengn, Dept Prevent & Restorat Dent Sci, San Francisco, CA 94143 USA. Lawrence Livermore Natl Lab, Chem & Mat Sci Dept, Livermore, CA 94550 USA. RP Marshall, GW (reprint author), Univ Calif San Francisco, Div Biomat & Bioengn, Dept Prevent & Restorat Dent Sci, 707 Parnassus Ave,Box 0758, San Francisco, CA 94143 USA. FU NIDCR NIH HHS [P01 DE09859, K16 DE00386] NR 18 TC 103 Z9 109 U1 0 U2 12 PU INT AMER ASSOC DENTAL RESEARCHI A D R/A A D R PI ALEXANDRIA PA 1619 DUKE ST, ALEXANDRIA, VA 22314-3406 USA SN 0022-0345 J9 J DENT RES JI J. Dent. Res. PD AUG PY 2001 VL 80 IS 8 BP 1768 EP 1771 PG 4 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA 536CU UT WOS:000174683800017 PM 11669491 ER PT J AU Suits, AG Qi, F AF Suits, AG Qi, F TI The photodissociation dynamics of cyclic sulfides probed with tunable undulator radiation SO JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA LA English DT Article DE photodissociation; molecular beam; chemical dynamics; photochemistry; vacuum ultraviolet; cyclic sulfides ID TRIATOMIC PHOTOFRAGMENT SPECTRA; 193 NM PHOTODISSOCIATION; ADVANCED LIGHT-SOURCE; ULTRAVIOLET PHOTODISSOCIATION; NO2 PHOTODISSOCIATION; SYNCHROTRON-RADIATION; CHEMICAL-DYNAMICS; MOLECULAR-BEAM; ATOMIC SULFUR; GAS-PHASE AB The combination of tunable synchrotron radiation with photofragment translational spectroscopy has been used to probe the photodissociation dynamics of a variety of cyclic sulfides. The results demonstrate the many advantages of using synchrotron radiation in place of electron impact ionization in photochemistry studies. Our universal and selective experimental approach is easily able to distinguish the ground state S(P-3) and the first excited state S(D-1), for example, and provides photoion yield spectra of all products. These measurements afford unambiguous identification of the primary decay pathways, as well as unique insights into the properties of the product species, often radicals or transient metastable species. (C) 2001 Elsevier Science B.V. All rights reserved. C1 SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. Ernest Orlando Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. RP Suits, AG (reprint author), SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. RI Qi, Fei/A-3722-2012 NR 61 TC 5 Z9 5 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0368-2048 J9 J ELECTRON SPECTROSC JI J. Electron Spectrosc. Relat. Phenom. PD AUG PY 2001 VL 119 IS 2-3 BP 127 EP 145 DI 10.1016/S0368-2048(01)00286-9 PG 19 WC Spectroscopy SC Spectroscopy GA 462DF UT WOS:000170404900003 ER PT J AU Chen, LX AF Chen, LX TI Probing transient molecular structures with time-resolved pump/probe XAFS using synchrotron X-ray sources SO JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA LA English DT Article DE XAFS; pump-probe; time-resolved XAFS; NiTPP; synchrotron; structures of intermediates ID ABSORPTION FINE-STRUCTURE; BENT LAUE ANALYZER; FLUORESCENCE EXAFS; ELECTRON-TRANSFER; EXCITED-STATE; CONDENSED-PHASE; HIGH-RESOLUTION; DILUTE SAMPLES; SPECTROSCOPY; PUMP AB Laser pulse pump, X-ray pulse probe X-ray absorption fine structure (pump-probe XAFS) experiments using synchrotron sources are described from technical considerations and from scientific significance. There are three technical challenges of such experiments: (1) laser photoexcitation, (2) synchronization of laser pulse and X-ray pulse, and (3) detection; each of which is investigated in detail. Based on the results from these investigations, the transient molecular structure of a reaction intermediate produced by photoexcitation of NiTPP-L-2 (NiTPP, nickeltetraphenylporphyrin; L, piperidine) in solution has been captured for the first time with the pump-probe XAFS on a 14-ns time scale obtained from the X-ray pulses from a third generation synchrotron source. The experimental results confirm that photoexcitation leads to the rapid removal of both axial ligands to produce a transient square-planar intermediate, NiTTP, with a lifetime of 28 ns. The transient structure of the photodissociated intermediate is nearly identical to that of the ground state NiTPP, suggesting that the intermediate adopts the same structure as the ground state in a non-coordinating solvent before it recombines with two ligands to form the more stable octahedrally coordinated NiTPP-L-2. No detectable population of a penta-coordinated intermediate was present. This experiment demonstrates the feasibility of determining transient molecular structures in disordered media using the temporal resolution of a synchrotron X-ray source. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. RP Chen, LX (reprint author), Argonne Natl Lab, Div Chem, 9700 S Cass Ave, Argonne, IL 60439 USA. NR 62 TC 35 Z9 35 U1 1 U2 11 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0368-2048 J9 J ELECTRON SPECTROSC JI J. Electron Spectrosc. Relat. Phenom. PD AUG PY 2001 VL 119 IS 2-3 BP 161 EP 174 DI 10.1016/S0368-2048(01)00289-4 PG 14 WC Spectroscopy SC Spectroscopy GA 462DF UT WOS:000170404900006 ER PT J AU Hrbek, J Rodriguez, JA Jirsak, T Dvorak, J AF Hrbek, J Rodriguez, JA Jirsak, T Dvorak, J TI High resolution photoemission studies of sulfur interaction with model catalytic surfaces SO JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA LA English DT Article DE sulfur; copper; TiO2; surface chemical reaction; strain metal films; photoelectron spectroscopy ID S-2; COADSORPTION; RU(001); FILMS; METAL; ZNO; H2S AB Synchrotron-based photoelectron spectroscopy was used to study sulfur reaction with two model catalytic surfaces: Cu/Ru(0001) and TiO2(110). Sulfidation of a strained copper film supported on a Ru substrate proceeds only after chemisorption of at least 0.2 monolayers of sulfur. The induction period was probed by STM to reveal significant restructuring of the metal surface and self-organization of sulfur into several distinct nano-patterns. Large chemical shifts of the S 2p core levels allow a definitive assignment of surface species (atomic vs. sulfidic sulfur). Sulfur reacts with a TiO2(110) surface readily from the very early stages of adsorption. We identified at least three types of sulfur species, namely S bonded to Ti rows, vacancies in the bridging oxygen rows, and S associated with the SOx groups. Published by Elsevier Science B.V. C1 Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. RP Hrbek, J (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. RI Hrbek, Jan/I-1020-2013 NR 25 TC 2 Z9 2 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0368-2048 J9 J ELECTRON SPECTROSC JI J. Electron Spectrosc. Relat. Phenom. PD AUG PY 2001 VL 119 IS 2-3 BP 201 EP 206 DI 10.1016/S0368-2048(01)00293-6 PG 6 WC Spectroscopy SC Spectroscopy GA 462DF UT WOS:000170404900010 ER PT J AU Naftel, SJ Martin, RR Sham, TK Macfie, SM Jones, KW AF Naftel, SJ Martin, RR Sham, TK Macfie, SM Jones, KW TI Micro-synchrotron X-ray fluorescence of cadmium-challenged corn roots SO JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA LA English DT Article DE synchrotron X-ray fluorescence; cadmium; corn; Zea mays AB Micro-synchrotron X-ray fluorescence was carried out to examine the metal distribution in cadmium-challenged com (Zea mays) roots. The results suggest that cadmium alters calcium distribution in the root tissue. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Univ Western Ontario, Dept Chem, London, ON N6A 5B7, Canada. Univ Western Ontario, Dept Plant Sci, London, ON N6A 5B7, Canada. Brookhaven Natl Lab, Dept Environm Sci, Upton, NY 11973 USA. RP Martin, RR (reprint author), Univ Western Ontario, Dept Chem, London, ON N6A 5B7, Canada. NR 2 TC 9 Z9 9 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0368-2048 J9 J ELECTRON SPECTROSC JI J. Electron Spectrosc. Relat. Phenom. PD AUG PY 2001 VL 119 IS 2-3 BP 235 EP 239 DI 10.1016/S0368-2048(01)00298-5 PG 5 WC Spectroscopy SC Spectroscopy GA 462DF UT WOS:000170404900015 ER PT J AU O'Brien, TP McPherron, RL Sornette, D Reeves, GD Friedel, R Singer, HJ AF O'Brien, TP McPherron, RL Sornette, D Reeves, GD Friedel, R Singer, HJ TI Which magnetic storms produce relativistic electrons at geosynchronous orbit? SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article ID ACCELERATION; MAGNETOSPHERE; BELT AB Relativistic electrons appear in the geosynchronous environment following some, but not all, geomagnetic storms. The ability to identify which storms produce these electrons would bring us much closer to explaining the mechanism responsible for their appearance, and it would provide the space weather community with a means to anticipate the electron hazard to geosynchronous spacecraft. We apply a recently developed statistical technique to produce an hourly time series of relativistic electron conditions at local noon along geosynchronous orbit using several geosynchronous monitors. We use a cross-correlation analysts to determine what parameters in the solar wind and magnetosphere might influence the Aux of relativistic electrons. We then perform a superposed epoch analysis to compare storms with and storms without the appearance of these electrons. We investigate a number of solar wind and magnetospheric parameters for these two sets of storms at 1-hour resolution, In particular, sustained solar wind velocity in excess of 450 km s(-1) is a strong external indicator of the subsequent appearance of relativistic electrons, :ln the magnetosphere, long-duration elevated Pc 5 ULF wave power during the recovery phase of magnetic storms appears to discriminate best between those storms that do and do not produce relativistic electrons. C1 Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90095 USA. Univ Calif Los Alamos Natl Lab, Los Alamos, NM 87544 USA. NOAA, Space Environm Ctr, Boulder, CO 80305 USA. Univ Calif Los Angeles, Dept Earth & Space Sci, Los Angeles, CA USA. Univ Nice, Nice, France. CNRS, Phys Mat Condensee Lab, F-06034 Nice, France. RP O'Brien, TP (reprint author), Univ Calif Los Angeles, Inst Geophys & Planetary Phys, 405 Hilgard, Los Angeles, CA 90095 USA. RI Friedel, Reiner/D-1410-2012; Reeves, Geoffrey/E-8101-2011 OI Friedel, Reiner/0000-0002-5228-0281; Reeves, Geoffrey/0000-0002-7985-8098 NR 21 TC 142 Z9 146 U1 0 U2 5 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0148-0227 J9 J GEOPHYS RES-SPACE JI J. Geophys. Res-Space Phys. PD AUG 1 PY 2001 VL 106 IS A8 BP 15533 EP 15544 DI 10.1029/2001JA000052 PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 456HQ UT WOS:000170077400010 ER PT J AU Issautier, K Skoug, RM Gosling, JT Gary, SP McComas, DJ AF Issautier, K Skoug, RM Gosling, JT Gary, SP McComas, DJ TI Solar wind plasma parameters on Ulysses: Detailed comparison between the URAP and SWOOPS experiments SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article ID THERMAL NOISE SPECTROSCOPY; TEMPERATURE; ELECTRONS; SPEED; RADIO; MODELS AB The presence of several instruments measuring plasma parameters aboard Ulysses made possible an extensive comparison between them. In this paper, we focus on solar wind electron parameters measured by the Unified RAdio and Plasma (URAP) wave receiver, using the thermal noise spectroscopy method, and by the Solar Wind Observations Over the Poles of the Sun (SWOOPS) electron and ion analyzers. We compare the data sets acquired by both experiments during the ecliptic path in 1990/1991 and the first pole-to-pole fast transit of Ulysses in 1994/1995, near the maximum and minimum of solar activity, respectively. From the comparison, we find very good agreement between the total density derived by both experiments; the average offset between the two data sets differs by less than 5%. We find a systematic offset of 5% to 10% in the core electron temperature values depending on the solar wind flow speed. We present detailed observations obtained during the crossing of the stream interface on March 28, 1995, by Ulysses, when it returned to the high-speed wind region in the northern hemisphere. We find that the core electron temperature increases around 40% at the interface, which is in agreement with the statistical result obtained using IMP plasma measurements at 1 AU, We point out that SWOOPS provides reliable ion diagnostics in addition to suprathermal (halo) electron parameters and yields fundamental information on particle velocity distributions, whereas the improved quasi-thermal noise method provides total electron densities and core electron temperatures accurately. C1 Univ Bern, Inst Phys, CH-3012 Bern, Switzerland. Univ Calif Los Alamos Natl Lab, Los Alamos, NM 87545 USA. SW Res Inst, San Antonio, TX 78228 USA. RP Issautier, K (reprint author), Univ Bern, Inst Phys, Sidlerstr 5, CH-3012 Bern, Switzerland. NR 36 TC 12 Z9 12 U1 1 U2 3 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0148-0227 J9 J GEOPHYS RES-SPACE JI J. Geophys. Res-Space Phys. PD AUG 1 PY 2001 VL 106 IS A8 BP 15665 EP 15675 DI 10.1029/2000JA000412 PG 11 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 456HQ UT WOS:000170077400021 ER PT J AU Gruntman, M Roelof, EC Mitchell, DG Fahr, HJ Funsten, HO McComas, DJ AF Gruntman, M Roelof, EC Mitchell, DG Fahr, HJ Funsten, HO McComas, DJ TI Energetic neutral atom imaging of the heliospheric boundary region SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Review ID LOCAL INTERSTELLAR-MEDIUM; PICK-UP IONS; WIND TERMINATION SHOCK; 3-DIMENSIONAL SOLAR-WIND; COSMIC-RAYS; MAGNETIC-FIELD; HYDROGEN-ATOMS; ACCELERATION; ULYSSES; GAS AB Energetic neutral atom (ENA) imaging is a powerful technique, which can remotely probe the properties of distant hot plasmas. Hot plasmas are abundant at the heliospheric boundary, the region where the expanding solar wind meets the surrounding local interstellar cloud. Here we present a new concept for imaging this boundary in ENA fluxes. Heliospheric ENAs are born from charge exchange between energetic protons and the background interstellar atomic hydrogen gas. The technique is ideal for studying the asymmetric three-dimensional heliospheric interface region remotely, from 1 AU. We show that ENA imaging in the 0.2-6 keV energy range will establish the nature of the termination shock and properties of hot proton populations in the heliosheath. We also examine how the evolution of pickup proton populations at and beyond the shock can be explored. Global heliosphere ENA images will distinguish among the competing models of the interaction between the Sun and the local interstellar medium, and they will reveal the physics of important processes in the interface region. Heliospheric ENA fluxes are exceptionally weak, which makes imaging implementation difficult. Nonetheless, we show how single-pixel ENA sensors can image the heliosphere from a spinning spacecraft on a typical mission near 1 AU. The required instrumentation is briefly discussed. C1 Univ So Calif, Dept Aerosp & Mech Engn, Los Angeles, CA 90089 USA. Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20707 USA. Univ Bonn, Inst Astrophys & Extraterrestris Forsch, D-53121 Bonn, Germany. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Gruntman, M (reprint author), Univ So Calif, Dept Aerosp & Mech Engn, MC-1191, Los Angeles, CA 90089 USA. EM mikeg@spock.usc.edu RI Funsten, Herbert/A-5702-2015; Gruntman, Mike/A-5426-2008 OI Funsten, Herbert/0000-0002-6817-1039; Gruntman, Mike/0000-0002-0830-010X NR 109 TC 96 Z9 96 U1 0 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0148-0227 J9 J GEOPHYS RES-SPACE JI J. Geophys. Res-Space Phys. PD AUG 1 PY 2001 VL 106 IS A8 BP 15767 EP 15781 DI 10.1029/2000JA000328 PG 15 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 456HQ UT WOS:000170077400029 ER PT J AU Crooker, NU Kahler, SW Gosling, JT Larson, DE Lepping, RP Smith, EJ De Keyser, J AF Crooker, NU Kahler, SW Gosling, JT Larson, DE Lepping, RP Smith, EJ De Keyser, J TI Scales of heliospheric current sheet coherence between 1 and 5 AU SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article ID CORONAL MASS EJECTIONS; PLANETARY SECTOR BOUNDARIES; SOLAR-WIND; STREAMER; POLARITIES; EVOLUTION; ELECTRONS; SURFACE AB The structure of the heliospheric current sheet (HCS) at Ulysses and at Wind is compared during the period of near-radial alignment in 1998. Electron heat flux and magnetic field data are used to determine true magnetic field polarity. During the solar rotation period surrounding alignment there was considerable disagreement between the HCS crossings at Wind and those predicted from the corresponding source surface map, both in number and in location, consistent with the disordered, temporally varying solar wind at this ascending phase of the solar cycle. Despite this complexity the four crossings closest to the time of radial alignment at Wind were successfully identified in Ulysses data with use of a one-dimensional hydrodynamic code. Further, minimum variance analysis for the first two crossings, which were separated by only 16 hours at Wind, indicated coherent propagation of a large-scale warp in the HCS. Analysis of the local structure of the HCS on the four crossings, however, revealed a high level of variability both from case to case and from one spacecraft to the other. For example, the third crossing at Wind was a single-sheet crossing adjacent to structures with fields folded back on themselves and a brief period of counterstreaming electrons implying a transient structure. At Ulysses multiple sheets were encountered. At the fourth crossings Wind passed through a counterstreaming event with a flux rope signature containing a south pointing axis, while Ulysses passed through a flux tube with little field rotation and northward pointing field. The results are consistent with the view that the heliospheric current sheet is coherent as a global structure but highly variable in local structure over angular distances of a few degrees. C1 Boston Univ, Ctr Space Phys, Boston, MA 02215 USA. Hanscom Air Force Base, Space Vehicles Directorate, Air Force Res Lab, Bedford, MA 01731 USA. Univ Calif Los Alamos Natl Lab, Los Alamos, NM 87545 USA. NASA, Goddard Space Flight Ctr, Extraterr Phys Lab, Greenbelt, MD 20771 USA. CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA. Belgian Inst Space Aeron, Brussels, Belgium. RP Crooker, NU (reprint author), Boston Univ, Ctr Space Phys, 725 Commonwealth Ave, Boston, MA 02215 USA. NR 29 TC 7 Z9 7 U1 0 U2 2 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0148-0227 J9 J GEOPHYS RES-SPACE JI J. Geophys. Res-Space Phys. PD AUG 1 PY 2001 VL 106 IS A8 BP 15963 EP 15971 DI 10.1029/2000JA000109 PG 9 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 456HQ UT WOS:000170077400047 ER PT J AU Zurbuchen, TH Hefti, S Fisk, LA Gloeckler, G Schwadron, NA Smith, CW Ness, NF Skoug, RM McComas, DJ Burlaga, LF AF Zurbuchen, TH Hefti, S Fisk, LA Gloeckler, G Schwadron, NA Smith, CW Ness, NF Skoug, RM McComas, DJ Burlaga, LF TI On the origin of microscale magnetic holes in the solar wind SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article ID MIRROR-MODE STRUCTURES; ADVANCED-COMPOSITION-EXPLORER; FRACTIONATION; CORONA; FIELD AB Magnetic holes are sudden changes in the magnetic field intensity \B\ from typical interplanetary values (similar to 10 nT) to less than 1 nT in a matter of seconds. The intensity then recovers within seconds or up to similar to 30 min later. These \B\ dropouts can be seen daily. Less often observed, but even more dramatic, are magnetic field depletions that last for up to several hours. We use selected periods of magnetic flux dropouts observed with various sensors of the Advanced Composition Explorer (ACE), which has a unique combination of magnetic field, plasma, and composition experiments, to establish the origin of these peculiar objects. We conclude that these microscale magnetic holes very likely develop in the heliosphere and are not of direct solar origin. We also suggest a possible formation mechanism associated with magnetic reconnection close to the Sun. C1 Univ Michigan, Space Phys Res Lab, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA. Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA. Univ Calif Los Alamos Natl Lab, Los Alamos, NM 87545 USA. NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA. RP Zurbuchen, TH (reprint author), Univ Michigan, Space Phys Res Lab, Dept Atmospher Ocean & Space Sci, 2455 Hayward St, Ann Arbor, MI 48109 USA. NR 28 TC 31 Z9 31 U1 0 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0148-0227 J9 J GEOPHYS RES-SPACE JI J. Geophys. Res-Space Phys. PD AUG 1 PY 2001 VL 106 IS A8 BP 16001 EP 16010 DI 10.1029/2000JA000119 PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 456HQ UT WOS:000170077400050 ER PT J AU O'Brien, JE Sohal, MS AF O'Brien, JE Sohal, MS TI Local fin-surface heat transfer for flow around a circular cylinder with and without vortex-generating winglets SO JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME LA English DT Article; Proceedings Paper CT International Mechanical Engineering Congress CY NOV, 2000 CL ORLANDO, FLORIDA C1 INEEL, Idaho Falls, ID 83415 USA. RP O'Brien, JE (reprint author), INEEL, Idaho Falls, ID 83415 USA. NR 0 TC 2 Z9 2 U1 0 U2 0 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA SN 0022-1481 J9 J HEAT TRANS-T ASME JI J. Heat Transf.-Trans. ASME PD AUG PY 2001 VL 123 IS 4 BP 623 EP 623 DI 10.1115/1.1385894 PG 1 WC Thermodynamics; Engineering, Mechanical SC Thermodynamics; Engineering GA 458XF UT WOS:000170220200007 ER PT J AU Kearney, SP Jacobi, AM Lucht, RP AF Kearney, SP Jacobi, AM Lucht, RP TI Time-resolved thermal boundary-layer structure in a pulsatile reversing channel flow SO JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME LA English DT Article DE boundary layer; convection; enhancement; heat transfer; periodic; pulsating ID COMBUSTOR TAIL-PIPE; OSCILLATING TURBULENT-FLOW; HEAT-TRANSFER; BROAD-BAND; TRANSITION; FREQUENCY; CARS; WALL AB In this paper, the results of an experimental study of the time-resolved structure of a thermal boundary layer in a pulsating channel flow are presented. The developing laminar regime is investigated. Two techniques were used for three-resolved temperature measurements: a nonintrusive, pure-rotational CARS method and cold-wire anemometry. Results are presented for differing degrees of flow reversal, and the data show that the primary impact of reversed flow is an increase in the instantaneous thermal boundary layer thickness and a period of decreased instantaneous Nusselt number. For the developing laminar parameter space spanned by the experiments, time-averaged heat-transfer enhancements as high as a factor of two relative to steady flow are observed for nonreversing and partially reversed pulsating flows. It is concluded that reversal is not necessarily a requirement for enhancement. C1 Sandia Natl Labs, Engn Sci Ctr, Albuquerque, NM 87185 USA. Univ Illinois, Dept Mech & Ind Engn, Urbana, IL 61801 USA. Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA. RP Kearney, SP (reprint author), Sandia Natl Labs, Engn Sci Ctr, POB 5800,9100, Albuquerque, NM 87185 USA. NR 38 TC 17 Z9 20 U1 0 U2 3 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA SN 0022-1481 J9 J HEAT TRANS-T ASME JI J. Heat Transf.-Trans. ASME PD AUG PY 2001 VL 123 IS 4 BP 655 EP 664 DI 10.1115/1.1372317 PG 10 WC Thermodynamics; Engineering, Mechanical SC Thermodynamics; Engineering GA 458XF UT WOS:000170220200011 ER PT J AU Arkani-Hamed, N Porrati, M Randall, L AF Arkani-Hamed, N Porrati, M Randall, L TI Holography and phenomenology SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE extra large dimensions; AdS-CFT correspondence ID BULK FIELDS; DIMENSIONS; COMPACTIFICATION; MILLIMETER; HIERARCHY; MODULUS; ADS AB We examine various aspects of the conjectured duality between warped AdS(5) geometries with boundary branes and strongly coupled (broken) conformal field theories coupled to dynamical gravity. We also examine compactifications with 5-d gauge fields, in which case the holographic dual is a broken CFT weakly coupled to dynamical gauge fields in addition to gravity. The holographic picture is used to clarify a number of important phenomenological issues in these and related models, including the questions of black hole production, radius stabilization, early universe cosmology, and gauge coupling unification. C1 Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Theory Grp, Berkeley, CA 94720 USA. NYU, Dept Phys, New York, NY 10003 USA. MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA. RP Arkani-Hamed, N (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. EM arkani@thwk1.lbl.gov; massimo.porrati@nyu.edu; randall@mitlns.mit.edu NR 42 TC 314 Z9 314 U1 0 U2 2 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD AUG PY 2001 IS 8 AR 017 DI 10.1088/1126-6708/2001/08/017 PG 32 WC Physics, Particles & Fields SC Physics GA 527DD UT WOS:000174170100017 ER PT J AU Aspinwall, PS Lawrence, A AF Aspinwall, PS Lawrence, A TI Derived categories and zero-brane stability SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE topological field theories; D-branes; superstring vacua; differential and algebraic geometry ID STRING THEORY; MODELS; STATES AB We define a particular class of topological field theories associated to open strings and prove the resulting D-branes and open strings form the bounded derived category of coherent sheaves. This derivation is a variant of some ideas proposed recently by Douglas. We then argue that any 0-brane on any Calabi-Yau threefold must become unstable along some path in the Kahler moduli space. As a byproduct of this analysis we see how the derived category can be invariant under a birational transformation between Calabi-Yaus. C1 Duke Univ, Ctr Geometry & Theoret Phys, Durham, NC 27708 USA. Stanford Linear Accelerator Ctr, Theoret Phys Grp, Menlo Pk, CA 94025 USA. Stanford Univ, Dept Phys, Stanford, CA 94305 USA. RP Aspinwall, PS (reprint author), Duke Univ, Ctr Geometry & Theoret Phys, Box 90318, Durham, NC 27708 USA. EM psa@cgtp.duke.edu; albion@slac.stanford.edu NR 56 TC 41 Z9 41 U1 0 U2 0 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD AUG PY 2001 IS 8 AR 004 PG 27 WC Physics, Particles & Fields SC Physics GA 527DD UT WOS:000174170100004 ER PT J AU Grojean, C Quevedo, F Zavala, I Tasinato, G AF Grojean, C Quevedo, F Zavala, I Tasinato, G TI Branes on charged dilatonic backgrounds: self-tuning, Lorentz violations and cosmology SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Review DE extra large dimensions; p-branes; cosmology of theories beyond the SM ID RANDALL-SUNDRUM MODEL; BLACK-HOLES; EXTRA DIMENSION; DOMAIN-WALLS; CONSTANT PROBLEM; LIGHT VELOCITY; BULK FIELDS; WORLD; STABILIZATION; SPACE AB We construct an n + q + 2 dimensional background that has dilatonic q-brane singularities and that is charged under an antisymmetric tensor field, the background spacetime being maximally symmetric in n-dimensions with constant curvature k = 0, +/- 1. For k = 1 the bulk solutions correspond to black q-branes. For k = 0; 1 the geometry resembles the 'white hole' region of the Reissner-Nordstrom solution with a past Cauchy horizon. The metric between the (timelike) singularity and the horizon is static whereas beyond the horizon it is cosmological. In the particular case of q = 0, we study the motion of a codimension one n-brane in these charged dilatonic backgrounds that interpolate between the original scalar self-tuning and the black hole geometry and provide a way to avoid the naked singularity problem and/or the need of having exotic matter on the brane. These backgrounds are asymmetrically warped and so break 4D Lorentz symmetry in a way that is safe for particle physics but may lead to faster than light propagation in the gravitational sector. C1 Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. LBL, Theoret Phys Grp, Berkeley, CA 94720 USA. Univ Cambridge, DAMTP, Ctr Math Sci, Cambridge CB3 0WA, England. SISSA, I-34013 Trieste, Italy. Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy. RP Grojean, C (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. EM CMGrojean@lbl.gov; F.Quevedo@damtp.cam.ac.uk; E.I.Zavala-Carrasco@damtp.cam.ac.uk; tasinato@he.sissa.it OI grojean, christophe/0000-0002-7196-7361 NR 115 TC 42 Z9 42 U1 0 U2 1 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD AUG PY 2001 IS 8 AR 005 DI 10.1088/1126-6708/2001/08/005 PG 29 WC Physics, Particles & Fields SC Physics GA 527DD UT WOS:000174170100005 ER PT J AU Weier, HUG AF Weier, HUG TI DNA fiber mapping techniques for the assembly of high-resolution physical maps SO JOURNAL OF HISTOCHEMISTRY & CYTOCHEMISTRY LA English DT Review DE physical mapping; DNA fibers; hybridization; FISH; digital image analysis ID YEAST ARTIFICIAL CHROMOSOMES; IN-SITU HYBRIDIZATION; FLUORESCENCE INSITU HYBRIDIZATION; HUMAN GENOME PROJECT; WHOLE HUMAN GENOME; SATELLITE DNA; ARABIDOPSIS-THALIANA; DIRECT VISUALIZATION; RELEASED CHROMATIN; EXTENDED CHROMATIN AB High-resolution physical maps are indispensable for directed sequencing projects or the finishing stages of shotgun sequencing projects. These maps are also critical for the positional cloning of disease genes and genetic elements that regulate gene expression. Typically, physical maps are based on ordered sets of large insert DNA clones from cosmid, P1/PAC/BAC, or yeast artificial chromosome (YAC) libraries. Recent technical developments provide detailed information about overlaps or gaps between clones and precisely locate the position of sequence tagged sites or expressed sequences, and thus support efforts to determine the complete sequence of the human genome and model organisms. Assembly of physical maps is greatly facilitated by hybridization of non-isotopically labeled DNA probes onto DNA molecules that were released from interphase cell nuclei or recombinant DNA clones, stretched to some extent and then immobilized on a solid support. The bound DNA, collectively called "DNA fibers," may consist of single DNA molecules in some experiments or bundles of chromatin fibers in others. Once released from the interphase nuclei, the DNA fibers become more accessible to probes and detection reagents. Hybridization efficiency is therefore increased, allowing the detection of DNA targets as small as a few hundred base pairs. This review summarizes different approaches to DNA fiber mapping and discusses the detection sensitivity and mapping accuracy as well as recent achievements in mapping expressed sequence tags and DNA replication sites. C1 Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Dept Subcellular Struct, Div Life Sci, Berkeley, CA 94720 USA. RP Weier, HUG (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Dept Subcellular Struct, Div Life Sci, MS 74-157,1 Cyclotron Rd, Berkeley, CA 94720 USA. NR 79 TC 20 Z9 24 U1 2 U2 5 PU HISTOCHEMICAL SOC INC PI SEATTLE PA UNIV WASHINGTON, DEPT BIOSTRUCTURE, BOX 357420, SEATTLE, WA 98195 USA SN 0022-1554 J9 J HISTOCHEM CYTOCHEM JI J. Histochem. Cytochem. PD AUG PY 2001 VL 49 IS 8 BP 939 EP 948 PG 10 WC Cell Biology SC Cell Biology GA 455XQ UT WOS:000170053400002 PM 11457922 ER PT J AU Hsieh, HB Lersch, RA Callahan, DE Hayward, S Wong, MW Clark, OH Weier, HUG AF Hsieh, HB Lersch, RA Callahan, DE Hayward, S Wong, MW Clark, OH Weier, HUG TI Monitoring signal transduction in cancer: cDNA microarray for semiquantitative analysis SO JOURNAL OF HISTOCHEMISTRY & CYTOCHEMISTRY LA English DT Article; Proceedings Paper CT Joint Meeting of the Histochemical-Society/International-Society-for-Analytical-and-Molecular -Morphology CY FEB 02-07, 2001 CL SANTA FE, NEW MEXICO SP Histochem Soc, Int Soc Analyt & Molec Morphol DE cDNA microarray; expression profiling; tyrosine kinase; reference probe ID EXPRESSION AB This study targeted the development of a novel microarray tool to allow rapid determination of the expression levels of 58 different tyrosine kinase (tk) genes in small tumor samples. The goals were to define a reference probe for multi-sample comparison and to investigate the variability and reproducibility of the image acquisition and RT-PCR procedures. The smalt number of tk genes on our arrays enabled us to define a reference probe by artificially mixing all genes on the arrays. Such a probe provided contrast reference for comparative hybridization of control and sample DNA and enabled cross-comparison of more than two samples against one another. Comparison of signals generated from multiple scanning eliminated the concern of photo bleaching and scanner intrinsic noise. Tests performed with breast, thyroid, and prostate cancer samples yielded distinctive patterns and suggest the feasibility of our approach. Repeated experiments indicated reproducibility of such arrays. Up- or downregulated genes identified by this rapid screening are now being investigated with techniques such as in situ hybridization. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. Univ Calif San Francisco, Dept Urol, San Francisco, CA 94143 USA. Univ Calif San Francisco, Dept Surg, San Francisco, CA 94143 USA. RP Lersch, RA (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, 1 Cyclotron Rd,MS 74-157, Berkeley, CA 94720 USA. NR 6 TC 1 Z9 1 U1 0 U2 0 PU HISTOCHEMICAL SOC INC PI SEATTLE PA UNIV WASHINGTON, DEPT BIOSTRUCTURE, BOX 357420, SEATTLE, WA 98195 USA SN 0022-1554 J9 J HISTOCHEM CYTOCHEM JI J. Histochem. Cytochem. PD AUG PY 2001 VL 49 IS 8 BP 1057 EP 1058 PG 2 WC Cell Biology SC Cell Biology GA 455XQ UT WOS:000170053400014 PM 11457934 ER PT J AU Cabelli, DE Hearn, AS Silverman, DN AF Cabelli, DE Hearn, AS Silverman, DN TI Human manganese superoxide dismutase: mechanistic studies using pulse radiolysis SO JOURNAL OF INORGANIC BIOCHEMISTRY LA English DT Meeting Abstract C1 Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. Univ Florida, Dept Pharmacol, Gainesville, FL 32610 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 USA SN 0162-0134 J9 J INORG BIOCHEM JI J. Inorg. Biochem. PD AUG PY 2001 VL 86 IS 1 BP 30 EP 30 PG 1 WC Biochemistry & Molecular Biology; Chemistry, Inorganic & Nuclear SC Biochemistry & Molecular Biology; Chemistry GA 463FW UT WOS:000170467300040 ER PT J AU Abreu, IA Saraiva, LM Soares, CM Cabelli, D Teixeira, M AF Abreu, IA Saraiva, LM Soares, CM Cabelli, D Teixeira, M TI A site-directed mutagenesis study to assess the mechanism of superoxide scavenging by Archaeoglobus fulgidus Neelaredoxin SO JOURNAL OF INORGANIC BIOCHEMISTRY LA English DT Meeting Abstract C1 Univ Nova Lisboa, Inst Tecnol Quim & Biol, P-2780 Oeiras, Portugal. Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. RI Saraiva, Ligia/H-8537-2012 OI Saraiva, Ligia/0000-0002-0675-129X NR 3 TC 0 Z9 0 U1 0 U2 1 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 USA SN 0162-0134 J9 J INORG BIOCHEM JI J. Inorg. Biochem. PD AUG PY 2001 VL 86 IS 1 BP 119 EP 119 PG 1 WC Biochemistry & Molecular Biology; Chemistry, Inorganic & Nuclear SC Biochemistry & Molecular Biology; Chemistry GA 463FW UT WOS:000170467300212 ER PT J AU Bursakov, SA Gavel, OY Di Rocco, G Lampreia, J Shnyrov, VL George, GN Calvete, JJ Moura, JJG Moura, I AF Bursakov, SA Gavel, OY Di Rocco, G Lampreia, J Shnyrov, VL George, GN Calvete, JJ Moura, JJG Moura, I TI Cobalt/Zinc as structural elements of bacterial adenylate kinase SO JOURNAL OF INORGANIC BIOCHEMISTRY LA English DT Meeting Abstract C1 Univ Nova Lisboa, Fac Ciencias & Tecnol, Dept Quim, P-2825114 Monte De Caparica, Portugal. Univ Salamanca, Dept Bioquim & Biol Mol, Salamanca 37007, Spain. Stanford Univ, Stanford Linear Accelerator Ctr, Stanford Synchrotron Radiat Lab, Stanford, CA 94309 USA. CSIC, Inst Invest Biomed, Valencia, Spain. RI Lampreia, Jorge/A-9927-2012; Moura, Jose/D-6426-2013; George, Graham/E-3290-2013; REQUIMTE, SMB/M-5694-2013; Moura, Isabel/D-6339-2013; REQUIMTE, UCIBIO/N-9846-2013; Di Rocco, Giulia/D-2165-2015 OI Lampreia, Jorge/0000-0001-8846-0041; Moura, Jose/0000-0002-4726-2388; Moura, Isabel/0000-0003-0971-4977; Di Rocco, Giulia/0000-0002-3187-2210 NR 0 TC 1 Z9 1 U1 0 U2 2 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 USA SN 0162-0134 J9 J INORG BIOCHEM JI J. Inorg. Biochem. PD AUG PY 2001 VL 86 IS 1 BP 163 EP 163 PG 1 WC Biochemistry & Molecular Biology; Chemistry, Inorganic & Nuclear SC Biochemistry & Molecular Biology; Chemistry GA 463FW UT WOS:000170467300301 ER PT J AU Cabelli, DE Emerson, JP Coulter, ED Kurtz, DM AF Cabelli, DE Emerson, JP Coulter, ED Kurtz, DM TI The reaction of Desulfovibrio vulgaris rubredoxin oxidoreductase (desulfoferrodoxin) with superoxide SO JOURNAL OF INORGANIC BIOCHEMISTRY LA English DT Meeting Abstract C1 Univ Georgia, Dept Chem, Athens, GA 30602 USA. Univ Georgia, Ctr Metalloenzyme Studies, Athens, GA 30602 USA. Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 USA SN 0162-0134 J9 J INORG BIOCHEM JI J. Inorg. Biochem. PD AUG PY 2001 VL 86 IS 1 BP 165 EP 165 PG 1 WC Biochemistry & Molecular Biology; Chemistry, Inorganic & Nuclear SC Biochemistry & Molecular Biology; Chemistry GA 463FW UT WOS:000170467300304 ER PT J AU Cramer, SP Bergmann, U Friedrich, S Funk, T Glatzel, P Gu, WW Liu, PC Patil, D Wang, H AF Cramer, SP Bergmann, U Friedrich, S Funk, T Glatzel, P Gu, WW Liu, PC Patil, D Wang, H TI X-ray resonance raman spectroscopy of metals in enzymes SO JOURNAL OF INORGANIC BIOCHEMISTRY LA English DT Meeting Abstract C1 Univ Calif Davis, Dept Appl Sci, Davis, CA 95656 USA. Lawrence Berkeley Natl Lab, Berkeley, CA 94022 USA. RI Glatzel, Pieter/E-9958-2010 OI Glatzel, Pieter/0000-0001-6532-8144 NR 3 TC 0 Z9 0 U1 0 U2 2 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 USA SN 0162-0134 J9 J INORG BIOCHEM JI J. Inorg. Biochem. PD AUG PY 2001 VL 86 IS 1 BP 191 EP 191 PG 1 WC Biochemistry & Molecular Biology; Chemistry, Inorganic & Nuclear SC Biochemistry & Molecular Biology; Chemistry GA 463FW UT WOS:000170467300356 ER PT J AU Dillon, CT Davies, NM Hambley, TW Kennedy, BJ Lay, PA Zhou, QD Stampfl, APJ Cai, ZH Lai, B Biffin, JR Regtop, H AF Dillon, CT Davies, NM Hambley, TW Kennedy, BJ Lay, PA Zhou, QD Stampfl, APJ Cai, ZH Lai, B Biffin, JR Regtop, H TI Micro-SRIXE and micro-XANES analysis of carcinogens and anti-inflammatory drugs in mammalian cells. SO JOURNAL OF INORGANIC BIOCHEMISTRY LA English DT Meeting Abstract C1 Univ Sydney, Sch Chem, Ctr Heavy Met Res, Sydney, NSW 2006, Australia. Univ Sydney, Fac Pharm, Sydney, NSW 2006, Australia. Argonne Natl Lab, Div Expt Facil, Argonne, IL 60439 USA. Biochem & Vet Res Pty Ltd, Braemer, NSW 2572, Australia. RI Davies, Neal/J-5811-2013; Lay, Peter/B-4698-2014 NR 0 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 USA SN 0162-0134 J9 J INORG BIOCHEM JI J. Inorg. Biochem. PD AUG PY 2001 VL 86 IS 1 BP 203 EP 203 PG 1 WC Biochemistry & Molecular Biology; Chemistry, Inorganic & Nuclear SC Biochemistry & Molecular Biology; Chemistry GA 463FW UT WOS:000170467300381 ER PT J AU Doucette, PA Rodriguez, JA Cabelli, D Sehati, S Valentine, JS AF Doucette, PA Rodriguez, JA Cabelli, D Sehati, S Valentine, JS TI Metal ion content, SOD activity and spectroscopy of 20 CuZnSOD mutants associated with familial amyothrophic lateral sclerosis SO JOURNAL OF INORGANIC BIOCHEMISTRY LA English DT Meeting Abstract C1 Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA. Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. RI Valentine, Joan/B-6665-2008 OI Valentine, Joan/0000-0002-7174-925X NR 0 TC 0 Z9 0 U1 1 U2 1 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 USA SN 0162-0134 J9 J INORG BIOCHEM JI J. Inorg. Biochem. PD AUG PY 2001 VL 86 IS 1 BP 206 EP 206 PG 1 WC Biochemistry & Molecular Biology; Chemistry, Inorganic & Nuclear SC Biochemistry & Molecular Biology; Chemistry GA 463FW UT WOS:000170467300386 ER PT J AU Gailer, J George, GN Pickering, IJ Walker, FA Winzerling, JJ AF Gailer, J George, GN Pickering, IJ Walker, FA Winzerling, JJ TI Human cytosolic iron regulatory protein 1 contains a linear iron-sulfur cluster SO JOURNAL OF INORGANIC BIOCHEMISTRY LA English DT Meeting Abstract ID ACONITASE C1 Univ Arizona, Dept Nutr Sci, Tucson, AZ 85721 USA. Stanford Linear Accelerator Ctr, Stanford Synchrotron Radiat Lab, Menlo Pk, CA 94025 USA. Univ Arizona, Dept Chem, Tucson, AZ 85721 USA. RI George, Graham/E-3290-2013; Pickering, Ingrid/A-4547-2013; Walker, Frances/O-4395-2016 NR 2 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 USA SN 0162-0134 J9 J INORG BIOCHEM JI J. Inorg. Biochem. PD AUG PY 2001 VL 86 IS 1 BP 226 EP 226 PG 1 WC Biochemistry & Molecular Biology; Chemistry, Inorganic & Nuclear SC Biochemistry & Molecular Biology; Chemistry GA 463FW UT WOS:000170467300427 ER PT J AU Kirk, ML Rubie, ND Peariso, K Doonan, C George, GN Young, CG AF Kirk, ML Rubie, ND Peariso, K Doonan, C George, GN Young, CG TI Covalency contributions to reactivity in xanthine oxidase and [MoOS](+) models SO JOURNAL OF INORGANIC BIOCHEMISTRY LA English DT Meeting Abstract ID MOLYBDENUM; ENZYMES C1 Univ New Mexico, Dept Chem, Albuquerque, NM 87131 USA. Univ Melbourne, Sch Chem, Melbourne, Vic 3010, Australia. Stanford Synchrotron Radiat Lab, Stanford, CA 94309 USA. RI George, Graham/E-3290-2013 NR 5 TC 0 Z9 0 U1 0 U2 4 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 USA SN 0162-0134 J9 J INORG BIOCHEM JI J. Inorg. Biochem. PD AUG PY 2001 VL 86 IS 1 BP 295 EP 295 PG 1 WC Biochemistry & Molecular Biology; Chemistry, Inorganic & Nuclear SC Biochemistry & Molecular Biology; Chemistry GA 463FW UT WOS:000170467300562 ER PT J AU Qiu, Y Pauleta, SR Lu, Y Goodhew, CF Moura, I Pettigrew, GW Shelnutt, JA AF Qiu, Y Pauleta, SR Lu, Y Goodhew, CF Moura, I Pettigrew, GW Shelnutt, JA TI Structural changes associated with calcium-dependent activation of the di-heme cytochrome c peroxidase of Paracoccus pantotrophus SO JOURNAL OF INORGANIC BIOCHEMISTRY LA English DT Meeting Abstract C1 Univ Nova Lisboa, Fac Ciencias & Tecnol, Ctr Quim Fina & Biotecnol, P-2825 Monte De Caparica, Portugal. Univ Edinburgh, Royal Dick Sch Vet Studies, Dept Preclin Vet Sci, Edinburgh EH9 1QH, Midlothian, Scotland. Univ New Mexico, Dept Chem, Albuquerque, NM 87131 USA. Sandia Natl Labs, Dept Biomol Mat & Interfaces, Albuquerque, NM 87185 USA. RI Shelnutt, John/A-9987-2009; Pauleta, Sofia/F-3619-2011; REQUIMTE, SMB/M-5694-2013; Moura, Isabel/D-6339-2013; REQUIMTE, UCIBIO/N-9846-2013 OI Shelnutt, John/0000-0001-7368-582X; Pauleta, Sofia/0000-0002-2149-9416; Moura, Isabel/0000-0003-0971-4977; NR 1 TC 0 Z9 0 U1 1 U2 2 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 USA SN 0162-0134 J9 J INORG BIOCHEM JI J. Inorg. Biochem. PD AUG PY 2001 VL 86 IS 1 BP 386 EP 386 PG 1 WC Biochemistry & Molecular Biology; Chemistry, Inorganic & Nuclear SC Biochemistry & Molecular Biology; Chemistry GA 463FW UT WOS:000170467300741 ER PT J AU Ribas, X Donnadieu, B Jackson, D Hodgson, KO Hedman, B Stack, TDP Llobet, A AF Ribas, X Donnadieu, B Jackson, D Hodgson, KO Hedman, B Stack, TDP Llobet, A TI Aryl-Cu(III) complexes: an intermediate in aromatic hydroxylation SO JOURNAL OF INORGANIC BIOCHEMISTRY LA English DT Meeting Abstract C1 Univ Girona, Fac Ciencies, Dept Quim, E-17071 Girona, Spain. CNRS, UPR 8241, Chim Coordinat Lab, F-31077 Toulouse, France. Stanford Univ, Dept Chem, Stanford, CA 94305 USA. Stanford Univ, Stanford Linear Accelerator Ctr, Stanford Synchrotron Radiat Lab, Stanford, CA 94309 USA. NR 1 TC 1 Z9 1 U1 0 U2 2 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 USA SN 0162-0134 J9 J INORG BIOCHEM JI J. Inorg. Biochem. PD AUG PY 2001 VL 86 IS 1 BP 399 EP 399 PG 1 WC Biochemistry & Molecular Biology; Chemistry, Inorganic & Nuclear SC Biochemistry & Molecular Biology; Chemistry GA 463FW UT WOS:000170467300766 ER PT J AU Stack, TDP Mahadevan, V Henson, MJ DuBois, JL Hedman, B Hodgson, KO Solomon, EI AF Stack, TDP Mahadevan, V Henson, MJ DuBois, JL Hedman, B Hodgson, KO Solomon, EI TI Thermodynamic and reactivity studies of interconvertible mu-eta(2):eta(2) peroxo and bis mu-oxo dicopper species SO JOURNAL OF INORGANIC BIOCHEMISTRY LA English DT Meeting Abstract C1 Stanford Univ, Dept Chem, Stanford, CA 94305 USA. Stanford Univ, Stanford Synchrotron Radiat Lab, Stanford, CA 94309 USA. NR 2 TC 1 Z9 1 U1 0 U2 1 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 USA SN 0162-0134 J9 J INORG BIOCHEM JI J. Inorg. Biochem. PD AUG PY 2001 VL 86 IS 1 BP 442 EP 442 PG 1 WC Biochemistry & Molecular Biology; Chemistry, Inorganic & Nuclear SC Biochemistry & Molecular Biology; Chemistry GA 463FW UT WOS:000170467300850 ER PT J AU Trautner, P Woelk, K Bargon, J Gerald, RE AF Trautner, P Woelk, K Bargon, J Gerald, RE TI Angular flow in toroid cavity probes SO JOURNAL OF MAGNETIC RESONANCE LA English DT Article DE toroid cavity detector; angular flow; frequency shift; chromatographic NMR; rheology ID DIFFUSION AB NMR signals from samples that rotate uniformly about the central conductor of a TCD (toroid cavity detector) exhibit frequency shifts that are directly proportional to the sample's angular velocity. This newly observed effect is based on the unique radiofrequency field inside TCDs, which is variable in direction. If a liquid sample is pumped through a capillary tube wound about the central conductor, the frequency shift is proportional to the flow rate. A mathematical relationship between a volumetric flow rate and the frequency shift is established and experimentally verified to high precision. Additionally, two-dimensional flow-resolved NMR spectroscopy for discrimination between components with different flow velocities yet retaining chemical shift information for structural analysis is presented. The application of the two-dimensional method in chromatographic NMR is suggested. Furthermore, utilization of the frequency-shift effect for rheologic studies if combined with toroid-cavity rotating-frame imaging is proposed. (C) 2001 Academic Press. C1 Univ Bonn, Inst Phys & Theoret Chem, D-53115 Bonn, Germany. Argonne Natl Lab, Div Chem Technol, Argonne, IL 60439 USA. RP Woelk, K (reprint author), Univ Bonn, Inst Phys & Theoret Chem, Wegelerstr 12, D-53115 Bonn, Germany. NR 13 TC 3 Z9 3 U1 2 U2 3 PU ACADEMIC PRESS INC PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 1090-7807 J9 J MAGN RESON JI J. Magn. Reson. PD AUG PY 2001 VL 151 IS 2 BP 284 EP 290 DI 10.1006/jmre.2001.2355 PG 7 WC Biochemical Research Methods; Physics, Atomic, Molecular & Chemical; Spectroscopy SC Biochemistry & Molecular Biology; Physics; Spectroscopy GA 463ZV UT WOS:000170508200008 ER PT J AU Crew, DC Kim, J Lewis, LH Barmak, K AF Crew, DC Kim, J Lewis, LH Barmak, K TI Interdiffusion in bilayer CoPt/Co films: potential for tailoring the magnetic exchange spring SO JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS LA English DT Article DE exchange spring; bilayer; anistropy; micromagnetic ID THIN-FILMS; BEHAVIOR; ANISOTROPY; REVERSAL AB The magnetic and microstructural properties and magnetic domain configuration of exchange-spring model bilayer samples based on L1(0)-type magnetically-hard CoPt and magnetically soft Co were examined and analyzed. Bilayers of varying thicknesses and annealing conditions were examined with room-temperature and elevated-temperature SQUID magnetometry, X-ray diffraction, transmission electron microscopy and magnetic force microscopy. While lower-temperature (300 degreesC less than or equal toT less than or equal to 400 degreesC) annealing treatments produced little change in the domain configuration, it did produce subtle change in the microstructure and a noticeable increase in the degree of exchange coupling of the bilayers. Higher-temperature (T = 550 degreesC) annealing treatments produced profound changes in all parameters: the magnetic reversal behavior, the remanence ratio and the magnetic domain configuration. These changes were accompanied by distinct changes in the bilayer phase constitution and proportions of hard and soft phases produced by interdiffusion of the Co and CoPt layers which altered the overall anisotropy and associated magnetic behavior of the system. To support these conjectures micromagnetic modeling of different conditions of the bilayer properties showed that changing the relative proportions of the hard and soft layers could indeed lead to changes in the magnetic behavior similar to those observed in the experimental systems. Both the experimental and modeling-derived results of this work demonstrate that the bulk technical properties of a hard/soft magnetic nanocomposite material depend on the relative proportions of the phases present, the degree of exchange coupling across the interface between those phases as well as on the physical and magnetic properties of those phases. Changing the physical properties of the phases in systematic ways allows the magnetic properties of the ensemble to be tailored. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Brookhaven Natl Lab, Energy Sci & Technol Dept, Div Mat & Chem Sci, Upton, NY 11973 USA. Lehigh Univ, Dept Mat Sci & Engn, Bethlehem, PA 18015 USA. Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA. RP Lewis, LH (reprint author), Brookhaven Natl Lab, Energy Sci & Technol Dept, Div Mat & Chem Sci, Bldg 480, Upton, NY 11973 USA. RI Barmak, Katayun/A-9804-2008 OI Barmak, Katayun/0000-0003-0070-158X NR 25 TC 42 Z9 44 U1 1 U2 12 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0304-8853 J9 J MAGN MAGN MATER JI J. Magn. Magn. Mater. PD AUG PY 2001 VL 233 IS 3 BP 257 EP 273 DI 10.1016/S0304-8853(01)00277-3 PG 17 WC Materials Science, Multidisciplinary; Physics, Condensed Matter SC Materials Science; Physics GA 459AL UT WOS:000170227600018 ER PT J AU Cook, BA Harringa, JL Laabs, FC Dennis, KW Russell, AM McCallum, RW AF Cook, BA Harringa, JL Laabs, FC Dennis, KW Russell, AM McCallum, RW TI Diffusion of Fe, Co, Nd, and Dy in R-2(Fe1-xCox)(14)B where R = Nd or Dy SO JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS LA English DT Letter DE diffusion coefficients; rare earth-iron-cobalt-boron permanent magnets; SEM-EDS; functionally graded microstructure AB Transition metal and rare earth diffusion coefficients at 1323 K in Dy2-yNdy(Fe1-xCox)(14)B were determined by field emission energy dispersive spectroscopy compositional analysis of diffusion couple specimens. Various arrangements of component materials and temperatures were examined in order to understand the mechanisms affecting diffusion of the components and to predict the stability of functionally graded microstructures consisting of a dysprosium-rich (Dy2-yNdy(Fe1-xCox)(14)B) outer layer and a neodymium-rich (Nd-2(Fe1-xCox)(14)B) interior. Estimates of the mutual interdiffusion coefficients of Dy, Nd, Fe, and Co in this system were obtained from the preparation of arc melted and annealed polycrystalline specimens, assuming that the diffusion coefficients were independent of concentration (Grube solution). Fifteen diffusion couples were prepared and heat treated at 1323 K for various times in order to provide data for calculation of the diffusion coefficients. The results indicate that the diffusion coefficients of Fe and Co (D-Fe = 3.28 x 10(-10)cm(2)/s and D-Co = 7.63 x 10(-10)cm(2)/s) were significantly higher at 1323K in this system than those for Dy and Nd (D-Nd = 2.3 x 10(-12)cm(2)/s and D-Dy = 2.9 x 10(-12)cm(2)/s). (C) 2001 Elsevier Science B.V. All rights reserved. C1 Iowa State Univ, Ames Lab, USDOE, Ames, IA 50011 USA. RP Cook, BA (reprint author), Iowa State Univ, Ames Lab, USDOE, 253 Spedding Hall, Ames, IA 50011 USA. NR 5 TC 9 Z9 11 U1 0 U2 6 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0304-8853 J9 J MAGN MAGN MATER JI J. Magn. Magn. Mater. PD AUG PY 2001 VL 233 IS 3 BP L136 EP L141 PG 6 WC Materials Science, Multidisciplinary; Physics, Condensed Matter SC Materials Science; Physics GA 459AL UT WOS:000170227600002 ER PT J AU Srivatsan, TS Ravi, BG Naruka, AS Riester, L Yoo, S Sudarshan, TS AF Srivatsan, TS Ravi, BG Naruka, AS Riester, L Yoo, S Sudarshan, TS TI Microstructure and hardness of copper powders consolidated by plasma pressure compaction SO JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE LA English DT Article DE copper powders; hot isostatic pressing; plasma pressure compaction AB Bulk fine-grained copper samples were prepared by consolidating copper powders using the technique of plasma pressure compaction ((PC)-C-2). The specimens were obtained by consolidating the powder particles under conditions of electrical pulse and no-electrical pulse and at two different temperatures. Results reveal that pulsing of the powders prior to consolidation led to higher microhardness values than the samples that were obtained by consolidating the powder particles under no-pulse. Both nanohardness and microhardness increased with an increase in the temperature of consolidation. Samples consolidated at the higher temperature revealed evidence of grain coarsening. The influence of processing variables on microstructure development and hardness is presented and discussed. C1 Univ Akron, Dept Mech Engn, Akron, OH 44325 USA. Oak Ridge Natl Lab, High Temp Mat Lab, Mech Characterizat & Anal Grp, Oak Ridge, TN 37831 USA. Mat Modificat Inc, Fairfax, VA 22031 USA. RP Srivatsan, TS (reprint author), Univ Akron, Dept Mech Engn, Akron, OH 44325 USA. NR 11 TC 9 Z9 9 U1 0 U2 2 PU ASM INTERNATIONAL PI MATERIALS PARK PA SUBSCRIPTIONS SPECIALIST CUSTOMER SERVICE, MATERIALS PARK, OH 44073-0002 USA SN 1059-9495 J9 J MATER ENG PERFORM JI J. Mater. Eng. Perform. PD AUG PY 2001 VL 10 IS 4 BP 449 EP 455 DI 10.1361/105994901770344872 PG 7 WC Materials Science, Multidisciplinary SC Materials Science GA 463TE UT WOS:000170492700011 ER PT J AU Groves, JR Arendt, PN Foltyn, SR Jia, QX Holesinger, TG Kung, H Peterson, EJ DePaula, RF Dowden, PC Stan, L Emmert, LA AF Groves, JR Arendt, PN Foltyn, SR Jia, QX Holesinger, TG Kung, H Peterson, EJ DePaula, RF Dowden, PC Stan, L Emmert, LA TI High critical current density YBa2Cu3O7-delta thick films using ion beam assisted deposition MgO bi-axially oriented template layers on nickel-based superalloy substrates SO JOURNAL OF MATERIALS RESEARCH LA English DT Article ID COATED CONDUCTORS; GRAIN-BOUNDARIES; BICRYSTALS; YBCO AB Nickel-based superalloys have been coated with magnesium oxide (MgO) using ion-beam-assisted deposition (IBAD). This technique produced a well-oriented bi-axially textured MgO template layer with a ( scan full width half maximum of 6.4 degrees. The layer architecture for these samples was as follows: polished hastelloy C276/amorphous Si3N4/IBAD MgO/pulsed laser deposited (PLD) Y2O3-ZrO2/PLD CeO2/PLD YBa2Cu3O7-delta. The subsequent heteroepitaxial PLD of 1.5-mum-thick YBCO showed a nominal critical current density of over I MA/cm(2) (75 K, self-field) along a microbridge and had an in-plane mosaic spread of 4.8 degrees and an out-of-plane spread of 1.3 degrees. These results compare well with our earlier work using IBAD yttria-stabilized zirconia (YSZ) as a template layer and indicate that IBAD MgO is a suitable substitute. Furthermore, these results suggest that IBAD MgO could be adapted to and increase the feasibility of a continuous process to fabricate longer lengths of coated conductors at speeds 100 times faster than that previously realized with IBAD YSZ. C1 Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. RP Groves, JR (reprint author), Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. RI Jia, Q. X./C-5194-2008 NR 13 TC 34 Z9 34 U1 2 U2 12 PU MATERIALS RESEARCH SOCIETY PI WARRENDALE PA 506 KEYSTONE DR, WARRENDALE, PA 15086 USA SN 0884-2914 J9 J MATER RES JI J. Mater. Res. PD AUG PY 2001 VL 16 IS 8 BP 2175 EP 2178 DI 10.1557/JMR.2001.0295 PG 4 WC Materials Science, Multidisciplinary SC Materials Science GA 459AK UT WOS:000170227500001 ER PT J AU Roy, ME Nishimoto, SK Rho, JY Bhattacharya, SK Pharr, GM AF Roy, ME Nishimoto, SK Rho, JY Bhattacharya, SK Pharr, GM TI The distribution of osteocalcin, degree of mineralization, and mechanical properties along the length of Cyprinus carpio rib bone SO JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE LA English DT Article ID K-DEPENDENT PROTEIN; VITAMIN-K; DEFICIENT MICE; GLA PROTEIN; RAT BONE; MATRIX; TISSUE AB This study examined the spatial distribution of selected biochemical and mechanical properties along the length of carp rib bone. Carp rib bone was chosen because of its unusually high osteocalcin content relative to other extractable proteins. The amount of osteocalcin was significantly lower (p <0.01) at the most distal section, relative to all other sections. The amount of phosphate (p <0.05) and the elastic modulus in the longitudinal plane (p <0.0001) were found to be significantly higher in the most distal section, relative to the most proximal section. There was no significant difference in the calcium distribution, molar Ca/P ratio, or elastic modulus in the transverse plane. It was speculated that the distal section contains less mature bone. The methods illustrate the potential usefulness of nanoindentation to characterize the mechanical properties of bone, relative to its biochemical composition. (C) 2001 Kluwer Academic Publishers. C1 Memphis State Univ, Dept Biomed Engn, Memphis, TN 38152 USA. Univ Tennessee, Dept Mol Sci, Memphis, TN USA. Univ Tennessee, Ctr Hlth Sci, Dept Surg, Memphis, TN 38163 USA. Univ Tennessee, Dept Mat Sci, Knoxville, TN USA. Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN USA. RP Rho, JY (reprint author), Memphis State Univ, Dept Biomed Engn, ET330, Memphis, TN 38152 USA. NR 25 TC 9 Z9 9 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0957-4530 J9 J MATER SCI-MATER M JI J. Mater. Sci.-Mater. Med. PD AUG PY 2001 VL 12 IS 8 BP 699 EP 702 DI 10.1023/A:1011268525937 PG 4 WC Engineering, Biomedical; Materials Science, Biomaterials SC Engineering; Materials Science GA 459AG UT WOS:000170227200008 PM 15348241 ER PT J AU Kinney, JH Oliveira, J Haupt, DL Marshall, GW Marshall, SJ AF Kinney, JH Oliveira, J Haupt, DL Marshall, GW Marshall, SJ TI The spatial arrangement of tubules in human dentin SO JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE LA English DT Article ID DIMENSIONAL CHANGES AB We applied two-dimensional numerical methods to describe the spatial arrangement of tubules in human dentin. The methods considered were two-point correlation functions, entropy-like measures, and angular distributions between nearest neighbors. The correlation functions were based on Fourier transform methods. The latter two approaches were based on stochastic geometry, and involved developing the Delaunay tessellations of the tubule patterns and their dual Voronoi diagrams. We discovered that for analyzing the distribution of tubules the geometric methods of lattice tessellations were more sensitive to structural order of the tubules than were Fourier-based schemes. Analysis of the data indicated that dentinal tubules are highly ordered in normal dentin. (C) 2001 Kluwer Academic Publishers. C1 Univ Calif San Francisco, Dept Prevent & Restorat Dent Sci, Div Bioengn & Biomat, San Francisco, CA 94143 USA. Pacific NW Natl Lab, Richland, WA 99352 USA. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Kinney, JH (reprint author), Univ Calif San Francisco, Dept Prevent & Restorat Dent Sci, Div Bioengn & Biomat, 707 Parnassus Ave,MS 0758, San Francisco, CA 94143 USA. NR 18 TC 16 Z9 16 U1 0 U2 5 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0957-4530 J9 J MATER SCI-MATER M JI J. Mater. Sci.-Mater. Med. PD AUG PY 2001 VL 12 IS 8 BP 743 EP 751 DI 10.1023/A:1011232912734 PG 9 WC Engineering, Biomedical; Materials Science, Biomaterials SC Engineering; Materials Science GA 459AG UT WOS:000170227200014 PM 15348247 ER PT J AU Balasubramanian, K AF Balasubramanian, K TI Linear variational Diophantine techniques in mass balance of chemical reactions SO JOURNAL OF MATHEMATICAL CHEMISTRY LA English DT Article DE Diophantine techniques; balancing chemical reactions; linear variation; thermodynamic functional ID EQUATIONS AB Linear algebraic techniques based on minimization of thermodynamic functional and/or other constraints are illustrated for mass balance of chemical reactions that do not exhibit stoichiometrically unique solutions in the linear algebraic vector space. The techniques demonstrate elegant casting of chemical equations in terms of generalized linear Diophantine matrices and generalized elimination and variational schemes. C1 Univ Calif Davis, Dept Appl Sci, Livermore, CA 94550 USA. Lawrence Livermore Natl Lab, Chem & Mat Sci Directorate, Livermore, CA 94550 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Glenn T Seaborg Ctr, Berkeley, CA 94720 USA. RP Balasubramanian, K (reprint author), Univ Calif Davis, Dept Appl Sci, POB 808,L-794, Livermore, CA 94550 USA. NR 17 TC 4 Z9 4 U1 0 U2 3 PU KLUWER ACADEMIC/PLENUM PUBL PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0259-9791 J9 J MATH CHEM JI J. Math. Chem. PD AUG PY 2001 VL 30 IS 2 BP 219 EP 225 DI 10.1023/A:1017979821326 PG 7 WC Chemistry, Multidisciplinary; Mathematics, Interdisciplinary Applications SC Chemistry; Mathematics GA 533HB UT WOS:000174522600006 ER PT J AU Izak, P Hrma, P Arey, BW Plaisted, TJ AF Izak, P Hrma, P Arey, BW Plaisted, TJ TI Effect of feed melting, temperature history, and minor component addition on spinel crystallization in high-level waste glass SO JOURNAL OF NON-CRYSTALLINE SOLIDS LA English DT Article ID CONVERSION; BATCH AB Spinet crystallization affects the anticipated cost and risk of high-level waste (HLW) vitrification. Spinet, (Fe, Ni) (Fe, Cr)(2)O-4, is the primary crystalline phase that precipitates from melts containing oxides of Fe, Ni, and Cr in sufficient concentrations. This study was undertaken to help design and verify mathematical models for a HLW glass melter in which spinet crystals precipitate and partially settle. To study melting reactions, we used a simulated HLW feed, prepared with co-precipitated Fe, Ni, Cr, and Mn hydroxides. Feed samples were heated up at a temperature-increase rate presumed to be close to that which the feed experiences in the HLW glass melter. The decomposition, melting, and dissolution of feed components (such as nitrates, carbonates, and quartz) and the formation of intermediate crystalline phases (spinet, sodalite, and Zr-containing minerals) were characterized using evolved gas analysis, vol-arne-expansion measurement, optical microscopy, scanning electron microscopy (SEM), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and X-ray diffraction (XRD). Nitrates and quartz, the major feed components, converted to a glass-forming melt by 880 degreesC. A nearly chron-dum-free primary spinet formed in the nitrate melt starting from 520 degreesC and eventually dissolved in the borosilicate melt by 1060 degreesC. Sodalite, a transient product of corundum dissolution, appeared above 600 degreesC and eventually dissolved in glass. To investigate the effects of temperature history and minor components (Ru, Ag, and Cu) on the dissolution and growth of spinet crystals, samples were heated up to temperatures below or above liquidus temperature (TL) and then subjected to different (constant or cyclic) temperature histories and analyzed. The results show that the mass fraction of spinet as well as the composition and size of crystals depend on the chemical and physical makeup of the feed and the temperature history. Small crystals result from either preventing the primary spinet from dissolving in the glass-forming melt or from the presence of nucleation agents, such as RuO2 (additions of 0.06 mass% Ag2O and 0.06 mass% CuO did not help nucleate spinet). Cyclic temperature histories with the maximum temperature above TL and minimum temperature below TL kept spinet concentration far below the equilibrium concentration, especially when a nucleation agent was absent. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Pacific NW Natl Lab, Richland, WA 99352 USA. RP Hrma, P (reprint author), Pacific NW Natl Lab, POB 999,MS K6-24, Richland, WA 99352 USA. RI Izak, Pavel/H-3401-2014 NR 26 TC 27 Z9 27 U1 0 U2 8 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3093 J9 J NON-CRYST SOLIDS JI J. Non-Cryst. Solids PD AUG PY 2001 VL 289 IS 1-3 BP 17 EP 29 DI 10.1016/S0022-3093(01)00705-0 PG 13 WC Materials Science, Ceramics; Materials Science, Multidisciplinary SC Materials Science GA 468KJ UT WOS:000170756600003 ER PT J AU Hu, XJ Littrel, K Ji, S Pickles, DG Risen, WM AF Hu, XJ Littrel, K Ji, S Pickles, DG Risen, WM TI Characterization of silica-polymer aerogel composites by small-angle neutron scattering and transmission electron microscopy SO JOURNAL OF NON-CRYSTALLINE SOLIDS LA English DT Article ID TRANSPARENT AB In this work a new type of silica-biopolymer aerogel composite containing chitosan has been studied with small-angle neutron scattering (SANS) and transmission electron microscopy (TEM). A new small-particle mass-fractal model scattering function, derived from the Teixeira mass-fractal scattering function, was used to fit the SANS data. As the content of chitosan was increased, the fractal dimension was decreased from 2.9 to 2.5, and the cut-off-length increased from 3.2 to 6.0 = This indicates that chitosan helps form a more open aerogel structure. It supports a structural model in which there are primary particles that connect with each other closely to form clusters, and these clusters serve as a secondary structural unit to form the chitosan-reinforced aerogel network. It also indicates that chitosan reinforces the inter-particle connections. This picture is consistent with the TEM measurements, which reveal that there are 1.5 mn wide entities with long dimensions in the 3-10 am range. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Brown Univ, Dept Chem, Providence, RI 02912 USA. Argonne Natl Lab, Div Intense Pulsed Neutron Source, Argonne, IL 60439 USA. Corning Inc, Sullivan Pk Res Ctr, Corning, NY 14831 USA. RP Risen, WM (reprint author), Brown Univ, Dept Chem, Providence, RI 02912 USA. RI Littrell, Kenneth/D-2106-2013 OI Littrell, Kenneth/0000-0003-2308-8618 NR 12 TC 23 Z9 23 U1 1 U2 21 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3093 J9 J NON-CRYST SOLIDS JI J. Non-Cryst. Solids PD AUG PY 2001 VL 288 IS 1-3 BP 184 EP 190 DI 10.1016/S0022-3093(01)00625-1 PG 7 WC Materials Science, Ceramics; Materials Science, Multidisciplinary SC Materials Science GA 459PU UT WOS:000170260500022 ER PT J AU Gan, J Was, GS AF Gan, J Was, GS TI Microstructure evolution in austenitic Fe-Cr-Ni alloys irradiated with rotons: comparison with neutron-irradiated microstructures SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article ID STRESS-CORROSION CRACKING; STAINLESS-STEELS; DEPENDENCE; CREEP AB Irradiation-induced microstructures of high purity and commercial purity austenitic stainless steels were investigated using proton-irradiation. For high purity alloys, Fe-Wr-Wi (HP 304 SS), Fe-20Cr-24Ni and Ni-18Cr-9Fe were irradiated using 3.2 MeV protons between 300 degreesC and 600 degreesC at a dose rate of 7 x 10(-6) dpa/s to doses up to 3.0 dpa. The commercial purity alloys, CP 304 SS and CP 316 SS were irradiated at 360 degreesC to doses between 0.3 and 5.0 dpa. The dose, temperature and composition dependence of the number density and size of dislocation loops and voids were characterized. The changes in yield strength due to irradiation were estimated from Vickers hardness measurements and compared to calculations using a dispersed-barrier-hardening (DBH) model. The dose and temperature dependence of proton-irradiated microstructure (loops, voids) and the irradiation hardening are consistent with the neutron-data trend. Results indicate that proton-irradiation can accurately reproduce the microstructure of austenitic alloys irradiated in LWR cores. (C) 2001 Published by Elsevier Science B.V. C1 Pacific NW Natl Lab, Mat Interface Grp, Richland, WA 99352 USA. Univ Michigan, Ann Arbor, MI 48109 USA. RP Gan, J (reprint author), Pacific NW Natl Lab, Mat Interface Grp, MSIN P8-16,POB 999, Richland, WA 99352 USA. EM jian.gan@pnl.gov NR 32 TC 26 Z9 26 U1 3 U2 11 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG PY 2001 VL 297 IS 2 BP 161 EP 175 DI 10.1016/S0022-3115(01)00615-8 PG 15 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 456ZR UT WOS:000170113100008 ER PT J AU He, BXY Li, N Mineev, M AF He, BXY Li, N Mineev, M TI A kinetic model for corrosion and precipitation in non-isothermal LBE flow loop SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article ID SYSTEMS AB A kinetic model was developed to estimate the corrosion/precipitation rate in a non-isothermal liquid lead-bismuth eutectic (LBE) flow loop. The model was based on solving the mass transport equation with the assumptions that convective transport dominates in the longitudinal flow direction and diffusion dominates in the transverse direction. The species concentration at wall is assumed to be determined either by the solubility of species in LBE in the absence of oxygen or by the reduction reaction of the protective oxide film when active oxygen control is applied. Analyses show that the corrosion/precipitation rate depends on the flow velocity. the species diffusion rate, the oxygen concentration in LBE, as well as the temperature distribution along a loop. Active oxygen control can significantly reduce the corrosion/ precipitation of the structural materials. It is shown that the highest corrosion/precipitation does not necessarily locate at places with the highest/lowest temperature. For a material testing loop being constructed at the Los Alamos National Laboratory (LANL), the highest corrosion occurs at the end of the heater zone, while the highest precipitation occurs in the return flow in the recuperator. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Univ Calif Los Alamos Natl Lab, Adv Accelerator Applict Program, Grp Complex Syst, Los Alamos, NM 87545 USA. RP He, BXY (reprint author), Univ Calif Los Alamos Natl Lab, Adv Accelerator Applict Program, Grp Complex Syst, MS B213, Los Alamos, NM 87545 USA. NR 8 TC 4 Z9 4 U1 1 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG PY 2001 VL 297 IS 2 BP 214 EP 219 DI 10.1016/S0022-3115(01)00603-1 PG 6 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 456ZR UT WOS:000170113100011 ER PT J AU Yaghoubi, S Barrio, JR Dahlbom, M Iyer, M Namavari, M Goldman, R Herschman, HR Phelps, ME Gambhir, SS AF Yaghoubi, S Barrio, JR Dahlbom, M Iyer, M Namavari, M Goldman, R Herschman, HR Phelps, ME Gambhir, SS TI Human pharmacokinetic and dosimetry studies of [F-18]FHBG: A reporter probe for imaging herpes simplex virus type-1 thymidine kinase reporter gene expression SO JOURNAL OF NUCLEAR MEDICINE LA English DT Article DE 9-[4-[F-18]fluoro-3-(hydroxymethyl)butyl]guanine; dosimetry; PET; herpes simplex virus type-1 thymidine kinase ID POSITRON-EMISSION-TOMOGRAPHY; LIVING ANIMALS; THERAPY; PENCICLOVIR; RECONSTRUCTION; MESOTHELIOMA; GANCICLOVIR; REPLICATION; PROTEIN; ASSAYS AB 9-[4-[F-18]fluoro-3-(hydroxymethyl)butyl]guanine ([F-18]FHBG) has been used as a reporter probe to image expression of herpes simplex virus type-1 thymidine kinase (HSV1-tk) reporter gene in living animals. Our aim was to study the kinetics, biodistribution, stability, dosimetry, and safety of [F-18]FHBG in healthy human volunteers, preparatory to imaging patients undergoing HSV1-tk gene therapy. Methods: [F-18]FHBG was synthesized with a specific activity of 37,000-444,000 GBq/mmol and a radiochemical purity > 99%. Ten healthy volunteers consented to participate in the study. A transmission scan was obtained before bolus injection of 70.3-229.4 MBq [F-18]FHBG into a hand vein, followed by dynamic PET imaging with 4 consecutive emission scans. Warmed hand-vein blood was withdrawn at various times after injection for blood time-activity measurements. Electrocardiography, blood pressure, and blood and urine pharmacologic parameters were measured before and after injection of the [F-18]FHBG tracer (n = 5). The stability of [F-18]FHBG in the urine was analyzed. Attenuation-corrected images were reconstructed using the ordered-subsets expectation maximization algorithm. Image region-of-interest time-activity data were used with the MIRD program to estimate absorbed radiation dosages. Results: [F-18]FHBG had rapid blood clearance; only 8.42%+/-4.76% (mean +/- SD) of the peak blood activity remained at approximately 30 min. The average ratio of plasma activity to whole-blood activity during the study, was 0.91 +/-0.04. Penetration of [F-18]FHBG across the blood-brain barrier was not observed. The primary routes of clearance were renal and hepatobiliary. High activities were observed in the bladder, gut, liver, and kidneys, but <0.0002% of the injected dose per gram was observed in other tissues. In the urine, 83% of activity 180 min after injection was stable [F-18]FHBG. Blood and urine pharmacologic parameters did not change significantly, after injection of the [F-18]FHBG tracer. The bladder absorbed the highest radiation dose. Conclusion: [F-18]FHBG has the desirable in vivo characteristics of stability, rapid blood clearance, low background signal, biosafety, and acceptable radiation dosimetry in humans. This study forms the foundation for using [F-18]FHBG in applications to monitor HSV1-tk reporter gene expression. C1 Univ Calif Los Angeles, Sch Med, Crump Inst Mol Imaging, UCLA DOE Lab Struct Biol & Mol Med, Los Angeles, CA 90095 USA. Univ Calif Los Angeles, Sch Med, Dept Mol & Med Pharmacol, Div Nucl Med, Los Angeles, CA 90095 USA. Univ Calif Los Angeles, Sch Med, Inst Mol Biol, Los Angeles, CA 90095 USA. Univ Calif Los Angeles, Sch Med, Dept Biomath, Los Angeles, CA 90095 USA. Univ Calif Los Angeles, Sch Med, Jonsson Comprehens Canc Ctr, Los Angeles, CA 90095 USA. RP Gambhir, SS (reprint author), Univ Calif Los Angeles, Sch Med, Crump Inst Mol Imaging, UCLA DOE Lab Struct Biol & Mol Med, 700 Westwood Plaza,A-222B CIMI, Los Angeles, CA 90095 USA. NR 39 TC 161 Z9 172 U1 1 U2 3 PU SOC NUCLEAR MEDICINE INC PI RESTON PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA SN 0161-5505 J9 J NUCL MED JI J. Nucl. Med. PD AUG PY 2001 VL 42 IS 8 BP 1225 EP 1234 PG 10 WC Radiology, Nuclear Medicine & Medical Imaging SC Radiology, Nuclear Medicine & Medical Imaging GA 460ML UT WOS:000170311300017 PM 11483684 ER PT J AU Dickens, PM Thakur, R AF Dickens, PM Thakur, R TI Evaluation of collective I/O implementations on parallel architectures SO JOURNAL OF PARALLEL AND DISTRIBUTED COMPUTING LA English DT Article ID FILE-ACCESS CHARACTERISTICS AB In this paper, we evaluate the impact on performance of various implementation techniques for collective I/O operations, and we do so across four important parallel architectures. We show that a naive implementation of collective I/O does not result in significant performance gains for any of the architectures, but that an optimized implementation does provide excellent performance across till of the platforms under study. Furthermore, we demonstrate that there exists a single implementation strategy that provides the best performance for all four computational platforms. Next, we evaluate implementation techniques for thread-based collective I/O operations. We show that the most obvious implementation technique, which is to spawn a thread to execute the whole collective I/O operation in the background. frequently provides the worst performance, often performing much worse than just executing the collective I/O routine entirely in the foreground. To improve performance, we explore an alternate approach where part of the collective I/O operation is performed in the background, and part is performed in the foreground. We demonstrate that this implementation technique can provide significant performance gains, offering up to a 50% improvement over implementations that do not attempt to overlap collective I/O and computation. (C) 2001 Academic Press. C1 IIT, Dept Comp Sci, Chicago, IL 60616 USA. Argonne Natl Lab, Div Math & Comp Sci, Argonne, IL 60439 USA. RP Dickens, PM (reprint author), IIT, Dept Comp Sci, Chicago, IL 60616 USA. NR 26 TC 9 Z9 9 U1 0 U2 0 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0743-7315 J9 J PARALLEL DISTR COM JI J. Parallel Distrib. Comput. PD AUG PY 2001 VL 61 IS 8 BP 1052 EP 1076 DI 10.1006/jpdc.2000.1733 PG 25 WC Computer Science, Theory & Methods SC Computer Science GA 471CV UT WOS:000170910700004 ER PT J AU Vacavant, L Hinchliffe, I AF Vacavant, L Hinchliffe, I TI Signals of models with large extra dimensions in ATLAS SO JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS LA English DT Article ID ENERGY AB The generic missing transverse energy signals at LHC for theories having large extra dimensions are discussed. Final states of jets plus missing energy and photons plus missing energy are simulated in the ATLAS detector. The discovery limit of LHC and the methods used to determine the parameters of the underlying model are discussed. C1 Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA. RP Vacavant, L (reprint author), Lawrence Berkeley Natl Lab, Div Phys, 1 Cyclotron Rd, Berkeley, CA 94720 USA. NR 18 TC 75 Z9 75 U1 0 U2 3 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 0954-3899 J9 J PHYS G NUCL PARTIC JI J. Phys. G-Nucl. Part. Phys. PD AUG PY 2001 VL 27 IS 8 BP 1839 EP 1850 DI 10.1088/0954-3899/27/8/313 PG 12 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 467GN UT WOS:000170694200016 ER PT J AU Bertulani, CA AF Bertulani, CA TI Density dependence of in-medium nucleon-nucleon cross sections SO JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS LA English DT Article ID HEAVY-ION COLLISIONS AB The lowest-order correction of the density dependence of in-medium nucleon-nucleon cross sections is obtained from geometrical considerations of Pauli-blocking effects. As a by-product, it is shown that the medium corrections imply an 1/E energy dependence of the density-dependent term. C1 Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Bertulani, CA (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. NR 10 TC 16 Z9 16 U1 1 U2 1 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 0954-3899 J9 J PHYS G NUCL PARTIC JI J. Phys. G-Nucl. Part. Phys. PD AUG PY 2001 VL 27 IS 8 BP L67 EP L71 DI 10.1088/0954-3899/27/8/101 PG 5 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 467GN UT WOS:000170694200001 ER PT J AU Bachand, GD Castello, JD AF Bachand, GD Castello, JD TI Immunolocalization of tomato mosaic tobamovirus in roots of red spruce seedlings SO JOURNAL OF PHYTOPATHOLOGY-PHYTOPATHOLOGISCHE ZEITSCHRIFT LA English DT Article DE Picea rubens; epifluorescence microscopy; immunofluorescence; tomato mosaic tobamovirus (ToMV) ID VIRUS; INFECTION AB The objective of this study was to determine the location of tomato mosaic tobamovirus (ToMV) in red spruce (Picea rubens) seedling roots. Roots were collected from uninfected and infected spruce seedlings at biweekly intervals, fixed in formaldehyde-glacial acetic acid-50% ethanol (1 : 1 : 18), embedded in paraffin, sectioned, and tested by indirect immunofluorescence (IF). ToMV was detected by IF in infected, but not in uninfected red spruce roots. All seedlings that tested positive by IF had previously tested positive by enzyme-linked immunosorbent assay. Fluorescence was observed most frequently 2 weeks after inoculation in cortical and epidermal cells, as well as in the lateral root primordia. The ToMV was not observed in vascular tissue, the root cap, or meristematic cells. Virus distribution was uneven, and occurred in localized, concatenated pockets, parallel to the axis of the apical meristem. In older seedlings, fluorescence was associated with irregular-shaped vesicles in cortical cells. C1 SUNY Coll Environm Sci & Forestry, Fac Environm & Forest Biol, Syracuse, NY 13210 USA. RP Bachand, GD (reprint author), Sandia Natl Labs, POB 5800 MS 1413, Albuquerque, NM 87185 USA. NR 20 TC 5 Z9 5 U1 0 U2 1 PU BLACKWELL WISSENSCHAFTS-VERLAG GMBH PI BERLIN PA KURFURSTENDAMM 57, D-10707 BERLIN, GERMANY SN 0931-1785 J9 J PHYTOPATHOL JI J. Phytopathol.-Phytopathol. Z. PD AUG PY 2001 VL 149 IS 7-8 BP 415 EP 419 DI 10.1046/j.1439-0434.2001.00647.x PG 5 WC Plant Sciences SC Plant Sciences GA 478KA UT WOS:000171344500008 ER PT J AU Chang, SJ AF Chang, SJ TI Fracture probability integral applied to reactor vessel life estimate SO JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME LA English DT Article AB The conventional method of fracture probability calculations such as that adopted by the NRC-sponsored PRAISE CODE and the FAVOR CODE developed in this laboratory are both based on Monte Carlo simulation. Heavy computations are required. A new method of fracture probability calculation is developed by direct probability integration. The preliminary version of the development was published in an earlier paper. More detailed development of the method is presented here. The present approach offers simple and expedient method to obtain numerical values of fracture probability. This method can be applied to problems as general as the method of Monte Carlo simulation. This approach also provides a clear physical picture on the meaning of the probability of fracture. Parametric studies are made in this paper to show the variation of the numerical values of the probabilities of fracture as a result of the change of the standard deviation of either fracture toughness or the radiation-induced temperature shift. Also, it is shown numerically that a limiting probability can be obtained if the standard deviation of the fracture toughness approaches zero that implies a deterministic fracture toughness. It confirms the theoretical proof shown in Eq. (11). The limiting probability is the simplistic probability of crack count used by this author where both toughness and temperature shift are assumed to be deterministic values. The general probability of fracture developed here is simply a generalization of the crack count, except the crack count is selected with the appropriate fracture toughness in the toughness distribution. The toughness for the problem considered here is then multiplied by the appropriate temperature shift in the distribution function of the temperature shift. Although the present development is based on linear fracture mechanics assumption and applied to the radiated reactor vessel steel, there is no difficulty in viewing the present development as a general formulation that is capable of handling as many random variables as required by the fracture model. The multiplicity of the integration corresponds to the number of random variables. The probability integral is applied in this paper to calculate the probability of fracture for the high flux isotope reactor (HFIR) vessel that has been weakened due to the radiation embrittlement. The random variables used here are the crack length, the fracture toughness, and the radiation-induced temperature shift that is needed in the Parametric representation of the radiated vessel steel. C1 Oak Ridge Natl Lab, High Flux Isotopw Reactor, Oak Ridge, TN 37831 USA. RP Chang, SJ (reprint author), Oak Ridge Natl Lab, High Flux Isotopw Reactor, POB 2008, Oak Ridge, TN 37831 USA. NR 12 TC 1 Z9 1 U1 0 U2 0 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA SN 0094-9930 J9 J PRESS VESS-T ASME JI J. Press. Vessel Technol.-Trans. ASME PD AUG PY 2001 VL 123 IS 3 BP 346 EP 354 DI 10.1115/1.1376713 PG 9 WC Engineering, Mechanical SC Engineering GA 465NL UT WOS:000170596400013 ER PT J AU Martinez, TP Cournoyer, ME AF Martinez, TP Cournoyer, ME TI Lead substitution and elimination study SO JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY LA English DT Article; Proceedings Paper CT 5th International Conference on Methods and Applications of Radioanalytical Chemistry (MARC-V) CY APR 09-14, 2000 CL KAILUA-KONA, HAWAII SP Amer Nucl Soc Top AB Because of the inherent risks of hazardous materials, every opportunity to eliminate or substitute them should be considered. Within the Nuclear Material Technology Division, lead is used as shielding for a variety of operations, which include actinide chemistry, radiochemistry, and analytical chemistry. Lessons learned from recent exposures to lead demonstrate the urgency of replacing lead as a shielding media. In this study, available substitutes and coatings are identified, and cost comparisons for each technology are discussed. C1 Los Alamos Natl Lab, Nucl Mat Technol Div MS G746, Los Alamos, NM 87545 USA. RP Martinez, TP (reprint author), Los Alamos Natl Lab, Nucl Mat Technol Div MS G746, POB 1663, Los Alamos, NM 87545 USA. NR 7 TC 4 Z9 9 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0236-5731 J9 J RADIOANAL NUCL CH JI J. Radioanal. Nucl. Chem. PD AUG PY 2001 VL 249 IS 2 BP 397 EP 402 PG 6 WC Chemistry, Analytical; Chemistry, Inorganic & Nuclear; Nuclear Science & Technology SC Chemistry; Nuclear Science & Technology GA 465YA UT WOS:000170616500021 ER PT J AU Robertson, JD Lovell, MA Buchholz, B Xie, CS Markesbery, WR AF Robertson, JD Lovell, MA Buchholz, B Xie, CS Markesbery, WR TI Use of bomb pulse C-14 to age senile plaques and neurofibrillary tangles in the Alzheimer's disease brain SO JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY LA English DT Article; Proceedings Paper CT 5th International Conference on Methods and Applications of Radioanalytical Chemistry (MARC-V) CY APR 09-14, 2000 CL KAILUA-KONA, HAWAII SP Amer Nucl Soc Top ID PAIRED HELICAL FILAMENTS; DEMENTIA; PREVALENCE; SEVERITY; DURATION; PROTEINS; NEURONS; LESIONS; TAU AB The time course and defining factors involved in the formation of neurofibrillary tangles (NFT) and senile plaques (SP) in Alzheimer's disease (AD) brain are unknown. Above ground nuclear weapons tests led to significantly increased levels of C-14 in the carbon cycle. Because SP and NFT are relatively resistant to degradation, the C-14 levels in SP and NFT should reflect their year of formation. Through the use of accelerator mass spectrometry (AMS) and the measurement of C-14 levels, we have determined the average age of formation of isolated SP and NFT fractions of 6 AD subjects. While a heterogeneous process of formation is indicated, NFT pre-date SP in the majority of cases. In addition, it is clear that NFT and SP have a much slower carbon turnover rate than normal brain tissue. C1 Univ Missouri, Dept Chem, Columbia, MO 65211 USA. Univ Kentucky, Sanders Brown Ctr Aging, Lexington, KY 40506 USA. Univ Kentucky, Dept Chem, Lexington, KY 40506 USA. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. Univ Kentucky, Dept Neurol, Lexington, KY 40506 USA. Univ Kentucky, Dept Pathol, Lexington, KY 40506 USA. RP Robertson, JD (reprint author), Univ Missouri, Dept Chem, Columbia, MO 65211 USA. NR 36 TC 3 Z9 3 U1 0 U2 3 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0236-5731 J9 J RADIOANAL NUCL CH JI J. Radioanal. Nucl. Chem. PD AUG PY 2001 VL 249 IS 2 BP 443 EP 447 PG 5 WC Chemistry, Analytical; Chemistry, Inorganic & Nuclear; Nuclear Science & Technology SC Chemistry; Nuclear Science & Technology GA 465YA UT WOS:000170616500029 ER PT J AU Arora, S Davidson, J Burch, J Mantell, S AF Arora, S Davidson, J Burch, J Mantell, S TI Thermal penalty of an immersed heat exchanger in integral collector storage systems SO JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME LA English DT Article; Proceedings Paper CT Annual Conference of the Solar Energy Division of the American-Society-of-Mechanical-Engineers CY APR 21-25, 2001 CL WASHINGTON, D.C. SP Amer Soc Mech Engineers, Solar Energy Div ID SOLAR AB The use of a heat exchanger in solar water heating systems reduces the overall system? efficiency. In this paper, we derive a simple "penalty factor" that gives the fractional reduction in thermal efficiency imposed by a heat exchanger immersed in an isothermal integral collector storage (ICS) system. The penalty factor depends only on the effectiveness of the heat exchanger, the capacitance of the hot water delivered, and the product of the loss coefficient and aperture area of the ICS. This factor allows the designer to select an appropriate heat exchanger without extensive simulation or experiments. Application of the penalty factor for a load-side (or on-demand) heat exchanger, which Operates intermittently at varying flow rates, is discussed and illustrated through example. C1 Univ Minnesota, Dept Mech Engn, Minneapolis, MN 55455 USA. Natl Renewable Energy Lab, Golden, CO USA. RP Arora, S (reprint author), Univ Minnesota, Dept Mech Engn, 111 Church St SE, Minneapolis, MN 55455 USA. NR 17 TC 8 Z9 8 U1 0 U2 2 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA SN 0199-6231 J9 J SOL ENERG-T ASME JI J. Sol. Energy Eng. Trans.-ASME PD AUG PY 2001 VL 123 IS 3 BP 180 EP 186 DI 10.1115/1.1384573 PG 7 WC Energy & Fuels; Engineering, Mechanical SC Energy & Fuels; Engineering GA 461JJ UT WOS:000170360900004 ER PT J AU Ling, CD Neumeier, JJ Argyriou, DN AF Ling, CD Neumeier, JJ Argyriou, DN TI Observation of antiferromagnetism in marokite CaMn2O4 SO JOURNAL OF SOLID STATE CHEMISTRY LA English DT Article DE marokite; CaMn2O4; Ca1-xLaxMnO3; neutron powder diffraction; magnetic structure; magnetic susceptibility AB Marokite (CaMn2O4) has been identified as a low-level impurity in the solid-state synthesis of Ca1-xLaxMnO3 perovskites in the low-x region. In order to properly isolate the complex magnetic behavior of these important perovskites, the low-temperature magnetic structure and properties of marokite are determined and reported. All Mn ions are in the high-spin 3 + oxidation state. Jahn-Teller-distorted NIMO, octahedra share both edges and vertices in a three-dimensional network, through which various exchange mechanisms cooperatively give rise to antiferromagnetic Mn3+ spin order. The magnetic order is evidenced below T-N = 220 K by a peak in the magnetic susceptibility and the appearance of symmetry-lowering magnetic Bragg reflections in neutron diffraction. (C) 2001 Academic Press. C1 Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. Florida Atlantic Univ, Dept Phys, Boca Raton, FL 33431 USA. Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. RP Ling, CD (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. RI Ling, Chris D/B-2228-2009 OI Ling, Chris D/0000-0003-2205-3106 NR 6 TC 29 Z9 29 U1 0 U2 14 PU ACADEMIC PRESS INC PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0022-4596 J9 J SOLID STATE CHEM JI J. Solid State Chem. PD AUG PY 2001 VL 160 IS 1 BP 167 EP 173 DI 10.1006/jssc.2001.9214 PG 7 WC Chemistry, Inorganic & Nuclear; Chemistry, Physical SC Chemistry GA 460GG UT WOS:000170299400025 ER PT J AU Smith, BL Swift, GW AF Smith, BL Swift, GW TI Measuring second-order time-average pressure SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA LA English DT Article AB Measurements of the spatial distribution of the time-averaged second-order pressure in a plane standing wave in atmospheric air are reported. Several measurement pitfalls are identified, and solutions are described. These include accounting for slight nonlinearity of the piezoresistive transducer and careful mounting of the transducer. Streaming causes extra complication when a capillary-connected manometer is used. With the proper technique and instrumentation, results are in good agreement with theory. (C) 2001 Acoustical Society of America. C1 Los Alamos Neutron Scattering Ctr, Condensed Matter & Thermal Phys Grp, Los Alamos, NM 87545 USA. RP Smith, BL (reprint author), Los Alamos Neutron Scattering Ctr, Condensed Matter & Thermal Phys Grp, Los Alamos, NM 87545 USA. RI Smith, Barton/H-3585-2011 NR 11 TC 21 Z9 21 U1 1 U2 1 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0001-4966 J9 J ACOUST SOC AM JI J. Acoust. Soc. Am. PD AUG PY 2001 VL 110 IS 2 BP 717 EP 723 DI 10.1121/1.1382615 PG 7 WC Acoustics; Audiology & Speech-Language Pathology SC Acoustics; Audiology & Speech-Language Pathology GA 462ED UT WOS:000170407000008 ER PT J AU Cox, SS Little, JC Hodgson, AT AF Cox, SS Little, JC Hodgson, AT TI Measuring concentrations of volatile organic compounds in vinyl flooring SO JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION LA English DT Article ID EMISSION; SORPTION AB The initial solid-phase concentration of volatile organic compounds (VOCs) is a key parameter influencing the emission characteristics of many indoor materials. Solid-phase measurements are typically made using solvent extraction or thermal headspace analysis. The high temperatures and chemical solvents associated with these methods can modify the physical structure of polymeric materials and, consequently, affect mass transfer characteristics. To measure solid-phase concentrations under conditions resembling those in which the material would be installed in an indoor environment, a new technique was developed for measuring VOC concentrations in vinyl flooring (VF) and similar materials. A 0.09-m(2) section of new VF was punched randomly to produce similar to 200 0.78-cm(2) disks. The disks were milled to a powder at -140 degreesC to simultaneously homogenize the material and reduce the diffusion path length without loss of VOCs. VOCs were extracted from the VF particles at room temperature by fluidized-bed desorption (FBD) and by direct thermal desorption (DTD) at elevated temperatures. The VOCs in the extraction gas from FBD and DTD were collected on sorbent tubes and analyzed by gas chromatography/mass spectrometry (GC/MS). Seven VOCs emitted by VF were quantified. Concentration measurements by FBD ranged from 5.1 mug/g VF for n-hexadecane to 130 mug/g VF for phenol. Concentrations measured by DTD were higher than concentrations measured by FBD. Differences between FBD and DTD results may be explained using free-volume and dual-mobility sorption theory, but further research is necessary to more completely characterize the complex nature of a diffusant in a polymer matrix. C1 Virginia Polytech Inst & State Univ, Dept Civil & Environm Engn, Blacksburg, VA 24061 USA. EO Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Little, JC (reprint author), Virginia Polytech Inst & State Univ, Dept Civil & Environm Engn, 418 Durham Hall, Blacksburg, VA 24061 USA. RI Little, John/B-4154-2009; Lucas, Elizabeth/E-2733-2010 NR 20 TC 45 Z9 53 U1 1 U2 20 PU AIR & WASTE MANAGEMENT ASSOC PI PITTSBURGH PA ONE GATEWAY CENTER, THIRD FL, PITTSBURGH, PA 15222 USA SN 1047-3289 J9 J AIR WASTE MANAGE JI J. Air Waste Manage. Assoc. PD AUG PY 2001 VL 51 IS 8 BP 1195 EP 1201 PG 7 WC Engineering, Environmental; Environmental Sciences; Meteorology & Atmospheric Sciences SC Engineering; Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA 467AD UT WOS:000170677600007 PM 11518293 ER PT J AU Kleveland, K Wereszczak, A Kirkland, TP Einarsrud, MA Grande, T AF Kleveland, K Wereszczak, A Kirkland, TP Einarsrud, MA Grande, T TI Compressive creep performance of SrFeO3 SO JOURNAL OF THE AMERICAN CERAMIC SOCIETY LA English DT Article ID DEFORMATION; BEHAVIOR; CERAMICS; SYSTEM AB Compressive creep performance of strontium-deficient and strontium-excess SrFeO3-delta materials has been investigated in the temperature range 800 degrees -1000 degreesC and in the stress range 2.5-25 MPa. The absolute densities of the strontium-deficient and strontium-excess materials are 4.99 and 5.25 g/cm(3), respectively, which corresponds to porosities of similar to2% and 5%, respectively. Both materials contain secondary phases because of the cation nonstoichiometry. The creep rate is faster for the strontium-deficient material than the strontium-excess material. The stress exponent is approximately unity, and the activation energy is 260 +/- 30 kJ/mol for both materials. The results can be explained by a cation diffusion mechanism. The present findings are discussed in relation to previous sintering data and the possible application of these materials as oxygen-permeable membranes. C1 Norwegian Univ Sci & Technol, Dept Chem, N-7491 Trondheim, Norway. Oak Ridge Natl Lab, High Temp Mat Lab, Oak Ridge, TN 37831 USA. RP Kleveland, K (reprint author), Norwegian Univ Sci & Technol, Dept Chem, N-7491 Trondheim, Norway. RI Einarsrud, Mari-Ann/I-5085-2014; Grande, Tor/K-4125-2015; Wereszczak, Andrew/I-7310-2016 OI Wereszczak, Andrew/0000-0002-8344-092X NR 21 TC 11 Z9 11 U1 0 U2 10 PU AMER CERAMIC SOC PI WESTERVILLE PA 735 CERAMIC PLACE, PO BOX 6136, WESTERVILLE, OH 43081-6136 USA SN 0002-7820 J9 J AM CERAM SOC JI J. Am. Ceram. Soc. PD AUG PY 2001 VL 84 IS 8 BP 1822 EP 1826 PG 5 WC Materials Science, Ceramics SC Materials Science GA 463BR UT WOS:000170457400026 ER PT J AU DiGiovanni, AA Chan, HM Harmer, MP Nied, HF AF DiGiovanni, AA Chan, HM Harmer, MP Nied, HF TI Micromechanics of deformation in porous liquid-phase-sintered alumina under Hertzian contact SO JOURNAL OF THE AMERICAN CERAMIC SOCIETY LA English DT Article ID BRITTLE-DUCTILE TRANSITION; COMPRESSIVE STRESS STATES; POLYCRYSTALLINE CERAMICS; CATACLASTIC FLOW; SILICON-NITRIDE; GRAIN-SIZE; DAMAGE; POROSITY; FATIGUE; ROCKS AB A series of fine-grained porous alumina samples, with and without a liquid phase, were fabricated in compositions matched closely to commercially available alumina used as microelectronic substrates. Hertzian indentation on monolithic specimens of the glass-containing samples produced a greater quasi-ductile stress-strain response compared with that observed in the pure alumina. Maximum residual indentation depths, determined from surface profilometry, correlated with the stress-strain results. Moreover, microstructural observations from bonded interface specimens revealed significantly more damage in the form of microcracking and under extreme loading, pore collapse, in the glass-containing specimens. The absence of the typical twin faulting mechanism observed for larger-grained alumina suggests that the damage mechanism for quasi-ductility in these fine-grained porous aluminas was derived from the pores acting as a stress concentrator and the grain boundary glass phase providing a weak path for short crack propagation. C1 Lehigh Univ, Dept Mat Sci & Engn, Bethlehem, PA 18015 USA. Lehigh Univ, Dept Mech Engn & Mech, Bethlehem, PA 18015 USA. RP Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. NR 45 TC 2 Z9 2 U1 1 U2 2 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0002-7820 EI 1551-2916 J9 J AM CERAM SOC JI J. Am. Ceram. Soc. PD AUG PY 2001 VL 84 IS 8 BP 1844 EP 1850 PG 7 WC Materials Science, Ceramics SC Materials Science GA 463BR UT WOS:000170457400030 ER PT J AU Jeoung, JS Poisl, WH Weinberg, MC Smith, GL Li, H AF Jeoung, JS Poisl, WH Weinberg, MC Smith, GL Li, H TI Effect of oxidation state of iron on phase separation in sodium silicate glasses SO JOURNAL OF THE AMERICAN CERAMIC SOCIETY LA English DT Article AB The effect of the oxidation state of iron on the phase separation of xNa(2)O . (100 - x)SiO2 glasses, x = 18.56 and 13, containing 0.5 mol% Fe2O3 was studied. The oxidation state of iron in the glasses was varied by changing the melting conditions, such as melting temperature and melting atmosphere. The oxidation states of the iron ion were determined using colorimetric and UV-VIS-NIR spectrophotometric methods, and a comparison was made between the results obtained using these two methods. Immiscibility temperatures of the glasses were determined using opalescence and clearing methods. The immiscibility temperature of the sodium silicate binary glasses decreased similar to 25 degreesC with the addition of 0.5 mol % Fe2O3. The immiscibility temperature of the doped glasses increased slightly with increased concentration of Fe2+ ion in the glass. The prediction of immiscibility tendency on the addition of a minor amount of third component was made using models proposed by Tomozawa and Obara and Nakagawa and Izumitani. The Tomozawa and Obara model showed good agreement with measured immiscibility values. C1 Univ Arizona, Dept Mat Sci & Engn, Tucson, AZ 85721 USA. Pacific NW Natl Lab, Richland, WA 99352 USA. RP Jeoung, JS (reprint author), Univ Arizona, Dept Mat Sci & Engn, Tucson, AZ 85721 USA. NR 20 TC 9 Z9 9 U1 0 U2 2 PU AMER CERAMIC SOC PI WESTERVILLE PA 735 CERAMIC PLACE, PO BOX 6136, WESTERVILLE, OH 43081-6136 USA SN 0002-7820 J9 J AM CERAM SOC JI J. Am. Ceram. Soc. PD AUG PY 2001 VL 84 IS 8 BP 1859 EP 1864 PG 6 WC Materials Science, Ceramics SC Materials Science GA 463BR UT WOS:000170457400032 ER PT J AU Payne, CK Snee, PT Yang, H Kotz, KT Schafer, LL Tilley, TD Harris, CB AF Payne, CK Snee, PT Yang, H Kotz, KT Schafer, LL Tilley, TD Harris, CB TI Intramolecular rearrangements on ultrafast timescales: Femtosecond infrared studies of ring slip in (eta(1)-C5Cl5)Mn(CO)(5) SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID MOLECULAR-ORBITAL METHODS; ROOM-TEMPERATURE; METAL-CARBONYLS; COMPLEXES; PHOTOCHEMISTRY; CYCLOPENTADIENYL; PHOTOPRODUCTS; DISSOCIATION; MANGANESE; KINETICS C1 Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. ERnest Orlando Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. RP Harris, CB (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. RI Payne, Christine/E-5954-2010 NR 22 TC 3 Z9 3 U1 0 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD AUG 1 PY 2001 VL 123 IS 30 BP 7425 EP 7426 DI 10.1021/ja003905l PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 456ZA UT WOS:000170111600029 PM 11472175 ER PT J AU Zachary, J Iyengar, SS Barhen, J AF Zachary, J Iyengar, SS Barhen, J TI Content based image retrieval and information theory: A general approach SO JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY LA English DT Article AB A fundamental aspect of content-based image retrieval (CBIR) is the extraction and the representation of a visual feature that is an effective discriminant between pairs of images. Among the many visual features that have been studied, the distribution of color pixels in an image is the most common visual feature studied. The standard representation of color for content-based indexing in image databases is the color histogram. Vector-based distance functions are used to compute the similarity between two images as the distance between points in the color histogram space. This paper proposes an alternative real valued representation of color based on the information theoretic concept of entropy. A theoretical presentation of image entropy is accompanied by a practical description of the merits and limitations of image entropy compared to color histograms. Specifically, the L-1 norm for color histograms is shown to provide an upper bound on the difference between image entropy values. Our initial results suggest that image entropy is a promising approach to image description and representation. C1 Louisiana State Univ, Dept Comp Sci, Baton Rouge, LA 70803 USA. Oak Ridge Natl Lab, Ctr Engn Sci Adv Res, Oak Ridge, TN USA. RP Zachary, J (reprint author), Louisiana State Univ, Dept Comp Sci, Baton Rouge, LA 70803 USA. NR 34 TC 12 Z9 14 U1 1 U2 6 PU JOHN WILEY & SONS INC PI NEW YORK PA 605 THIRD AVE, NEW YORK, NY 10158-0012 USA SN 1532-2882 J9 J AM SOC INF SCI TEC JI J. Am. Soc. Inf. Sci. Technol. PD AUG PY 2001 VL 52 IS 10 BP 840 EP 852 DI 10.1002/asi.1138.abs PG 13 WC Computer Science, Information Systems; Information Science & Library Science SC Computer Science; Information Science & Library Science GA 457EJ UT WOS:000170123900007 ER PT J AU Skaggs, RL Mays, LW Vail, LW AF Skaggs, RL Mays, LW Vail, LW TI Simulated annealing with memory and directional search for ground water remediation design SO JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION LA English DT Article DE ground water flow and contaminant transport; simulated annealing; Tabu Search; optimization; ground water remediation ID GENETIC ALGORITHMS; OPTIMIZATION; MANAGEMENT AB Review of recent literature indicates an emergence in the use of combinatorial methods such as simulated annealing in ground water management during the past nine to ten years. While previous studies demonstrated the feasibility of using these methods, a general finding was that computational processing requirements were inordinately high relative to gradient-based methods. An enhanced annealing algorithm was developed and used to demonstrate the potential for greatly improving the computational efficiency of simulated annealing as an optimization method for ground water management applications. The algorithm incorporates "directional search" and "memory" capabilities. Selecting search directions based on better understanding of the current neighborhood of the configuration space was shown to improve algorithm performance. Also, "memory" concepts derived from the Tabu Search Method show particular promise for improving the rate and quality of convergence, Performance of the enhanced annealing method was evaluated and the resultant management method was demonstrated using an example from the literature. C1 Pacific NW Natl Lab, Richland, WA 99352 USA. Arizona State Univ, Dept Civil & Environm Engn, Tempe, AZ 85287 USA. RP Skaggs, RL (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd,POB 999, Richland, WA 99352 USA. NR 26 TC 3 Z9 3 U1 1 U2 3 PU AMER WATER RESOURCES ASSOC PI MIDDLEBURG PA 4 WEST FEDERAL ST, PO BOX 1626, MIDDLEBURG, VA 20118-1626 USA SN 1093-474X J9 J AM WATER RESOUR AS JI J. Am. Water Resour. Assoc. PD AUG PY 2001 VL 37 IS 4 BP 853 EP 866 DI 10.1111/j.1752-1688.2001.tb05517.x PG 14 WC Engineering, Environmental; Geosciences, Multidisciplinary; Water Resources SC Engineering; Geology; Water Resources GA 478AX UT WOS:000171321700008 ER PT J AU Skaggs, RL Mays, LW Vail, LW AF Skaggs, RL Mays, LW Vail, LW TI Application of enhanced annealing to ground water remediation design SO JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION LA English DT Article DE ground water flow and contaminant transport; simulated annealing; optimization; ground water remediation AB A methodology for ground water remediation design has been developed that interfaces ground water simulation models with an enhanced annealing optimizer. The ground water flow and transport simulators provide the ability to consider site-specific contamination and geohydrologic conditions directly in the assessment of alternative remediation system designs. The optimizer facilitates analysis of tradeoffs between technical, environmental, regulatory, and financial risks for alternative design and operation scenarios. A ground water management model using an optimization method referred to as "enhanced annealing" (simulated annealing enhanced to include "directional search" and "memory" mechanisms) has been developed and successfully applied to an actual restoration problem. The demonstration site is the contaminated unconfined aquifer referred to as N-Springs located at Hanford, Washington. Results of the demonstration show the potential for improving groundwater restoration system performance while reducing overall system cost. C1 Pacific NW Natl Lab, Richland, WA 99352 USA. Arizona State Univ, Dept Civil & Environm Engn, Tempe, AZ 85287 USA. RP Skaggs, RL (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd,POB 999, Richland, WA 99352 USA. NR 5 TC 3 Z9 3 U1 0 U2 1 PU AMER WATER RESOURCES ASSOC PI MIDDLEBURG PA 4 WEST FEDERAL ST, PO BOX 1626, MIDDLEBURG, VA 20118-1626 USA SN 1093-474X J9 J AM WATER RESOUR AS JI J. Am. Water Resour. Assoc. PD AUG PY 2001 VL 37 IS 4 BP 867 EP 875 DI 10.1111/j.1752-1688.2001.tb05518.x PG 9 WC Engineering, Environmental; Geosciences, Multidisciplinary; Water Resources SC Engineering; Geology; Water Resources GA 478AX UT WOS:000171321700009 ER PT J AU Tacker, MC Reimer, JA Cairns, EJ AF Tacker, MC Reimer, JA Cairns, EJ TI A Li-7 nuclear magnetic resonance study of metal-substituted lithium manganese oxide spinels SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY LA English DT Article ID 4 V; CELLS AB Metal-substituted spinels, LiMxMn2-xO4 (M = Li, Zn, Ni, Al, Co, Cr), are synthesized with low levels of substitution by solid-state techniques and studied with Li-7 magic angle spinning nuclear magnetic resonance (MAS NMR). The NMR spectra are characterized by several distinct peaks, spanning a wide shift range. The shifts are interpreted in terms of the supertransferred hyperfine interaction, The its-prepared spinels show peaks in the vicinity of 510 ppm, assigned to "normal" lithium in a tetrahedral site surrounded by 12 manganese nearest neighbors, and 530-580 ppm, assigned to "near-defect" lithium in a tetrahedral site with one or more metal substituents as nearest neighbors. Upon substitution, the peak arising from normal lithium broadens and reduces in intensity, whereas the peaks arising from near-defect lithium increase in intensity. Li, Co-, and Al-substituted spinels also give rise to a peak in the vicinity of 1700 ppm, assigned to electrochemically inactive lithium in the 16d octahedral site. NMR spectra of electrochemically cycled spinels reveal that the local,environment of lithium changes upon cycling. After cycling, the normal lithium peak reduces in intensity and broadens, while the near-defect lithium peak increases in intensity. The extent of these changes is least for spinels that show robust capacity retention. It is found that damage from moisture contamination results in a shift and reduction in intensity of the peak arising from tetrahedral lithium in the spinel. In addition, a new peak at 0 ppm is observed and assigned to multiple diamagnetic, lithium-containing solid electrolyte interface species. No effects of moisture contamination are observed in the electrochemically prepared samples. (C) 2001 The Electrochemical Society. C1 Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA. Ernest Orlando Lawrence Berkeley Natl Lab, Berkeley, CA USA. RP Tacker, MC (reprint author), Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA. RI Cairns, Elton/E-8873-2012 OI Cairns, Elton/0000-0002-1179-7591 NR 9 TC 12 Z9 13 U1 1 U2 4 PU ELECTROCHEMICAL SOC INC PI PENNINGTON PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA SN 0013-4651 J9 J ELECTROCHEM SOC JI J. Electrochem. Soc. PD AUG PY 2001 VL 148 IS 8 BP A951 EP A959 DI 10.1149/1.1383775 PG 9 WC Electrochemistry; Materials Science, Coatings & Films SC Electrochemistry; Materials Science GA 462BR UT WOS:000170400700021 ER PT J AU Goretta, KC Cruse, TA Koritala, RE Routbort, JL Melendez-Martinez, JJ de Arellano-Lopez, AR AF Goretta, KC Cruse, TA Koritala, RE Routbort, JL Melendez-Martinez, JJ de Arellano-Lopez, AR TI Compressive creep of polycrystalline ZrSiO4 SO JOURNAL OF THE EUROPEAN CERAMIC SOCIETY LA English DT Article DE compressive creep; creep; grain boundary sliding; ZrSiO4 ID MECHANICAL-PROPERTIES; PLASTIC-DEFORMATION; MULLITE CERAMICS; ZIRCON; TEMPERATURE; DIFFUSION; COMPOSITE; BEHAVIOR AB Polycrystalline ZrSiO4 ceramics were prepared from commercial powder. Silicate-based glass phase was observed at multiple-grain junctions. Compressive creep tests were conducted in Ar at 1197-1400 degreesC. For stresses of approximate to1-120 MPa. steady-stare creep occurred by diffusional flow. For stresses of > 3 MPa, the steady-state strain rate (epsilon) over dot could be expressed as (epsilon) over dot = A sigma (1.1+/-0.1) exp - [(470 +/- 40 kJ/mol)/RT]. where A is a constant, sigma the steady-state stress, R the gas constant, and T the absolute temperature. Al 1400 degreesC and 1 MPa, an increase in the value of n was observed. Electron microscopy revealed no deformation-induced change in the microstructures of any of the specimens, which is consistent with creep by diffusion-controlled grain-boundary sliding. Comparison with literature data indicated that volume diffusion of oxygen controlled the creep rate. (C) 2001 Elsevier Science Ltd. All rights reserved. C1 Argonne Natl Lab, Div Energy Technol, Argonne, IL 60439 USA. Univ Seville, Dept Fis Mat Condensada, E-41080 Seville, Spain. RP Argonne Natl Lab, Div Energy Technol, 9700 S Cass Ave, Argonne, IL 60439 USA. EM goretta@anl.gov RI Koritala, Rachel/F-1774-2011; Melendez, Juan Jose/A-6524-2013; OI Melendez, Juan Jose/0000-0003-1036-6666; R. de Arellano Lopez, Antonio/0000-0002-7443-0244 NR 39 TC 5 Z9 5 U1 0 U2 2 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0955-2219 EI 1873-619X J9 J EUR CERAM SOC JI J. Eur. Ceram. Soc. PD AUG PY 2001 VL 21 IS 8 BP 1055 EP 1060 DI 10.1016/S0955-2219(00)00316-2 PG 6 WC Materials Science, Ceramics SC Materials Science GA 441WL UT WOS:000169252500008 ER PT J AU Funke, H Bernhard, G Claussner, J Jansen, K Matz, W Nitsche, H Oehme, W Reich, T Rollig, D AF Funke, H Bernhard, G Claussner, J Jansen, K Matz, W Nitsche, H Oehme, W Reich, T Rollig, D TI Technical description of the radiological safety system for X-ray absorption spectroscopy experiments on radioactive samples at the Rossendorf Beamline SO KERNTECHNIK LA English DT Article AB The Rossendorf Beamline at the European Synchrotron Radiation Facility is equipped with a unique radiochemistry experimental station. This dedicated station has been designed to perform environmentally relevant experiments on radionuclides, in particular actinides, using synchrotron based X-ray absorption fine structure spectroscopy. The technical concepts and the layout of this experimental station, where radioactive solids and liquids with activities of up to 185 MBq can be studied, are presented. The radiological safety of experimenters, equipment, and of the environment are ensured by the specially, developed radiochemistry safety system. The multibarrier concept, the ventilation and air monitoring systems, the radiological protection system, and special software components for recording and visualisation of the safety status are described in detail. C1 Rossendorf Inc, Res Ctr, Inst Radiochem, D-01314 Dresden, Germany. Rossendorf Inc, Res Ctr, Inst Ion Beam Phys & Mat Res, D-01314 Dresden, Germany. Rossendorf Inc, Res Ctr, Cent Dept Expt Facil & Informat Technol, D-01314 Dresden, Germany. Nucl Engn & Analyt Inc, VKTA, D-01314 Dresden, Germany. Lawrence Berkeley Natl Lab, Glenn T Seaborg Ctr, Berkeley, CA 94720 USA. RP Funke, H (reprint author), Rossendorf Inc, Res Ctr, Inst Radiochem, Postfach 510119, D-01314 Dresden, Germany. RI The Rossendorf Beamline at ESRF, ROBL/A-2586-2011; Reich, Tobias/C-7064-2016 OI Reich, Tobias/0000-0002-5600-3951 NR 8 TC 0 Z9 0 U1 0 U2 3 PU CARL HANSER VERLAG PI MUNICH PA KOLBERGERSTRASSE 22, POSTFACH 86 04 20, D-81679 MUNICH, GERMANY SN 0932-3902 J9 KERNTECHNIK JI Kerntechnik PD AUG PY 2001 VL 66 IS 4 BP 195 EP 201 PG 7 WC Nuclear Science & Technology SC Nuclear Science & Technology GA 477NQ UT WOS:000171290600006 ER PT J AU Dylla, HF AF Dylla, HF TI Jefferson Lab's FEL gets down to business SO LASER FOCUS WORLD LA English DT Article AB Two years after becoming the world's most powerful tunable laser and enabling numerous research experiments, upgrades are planned for Jefferson Lab's IR free-electron laser. C1 US DOE, Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. RP Dylla, HF (reprint author), US DOE, Thomas Jefferson Natl Accelerator Facil, 12000 Jefferson Ave, Newport News, VA 23606 USA. NR 4 TC 0 Z9 0 U1 0 U2 0 PU PENNWELL PUBL CO PI NASHUA PA 98 SPIT BROOK RD, NASHUA, NH 03062-2801 USA SN 0740-2511 J9 LASER FOCUS WORLD JI Laser Focus World PD AUG PY 2001 VL 37 IS 8 BP 93 EP + PG 4 WC Optics SC Optics GA 461ZA UT WOS:000170392700027 ER PT J AU Burton, H AF Burton, H TI How to build a mind: Toward machines with imagination. SO LIBRARY JOURNAL LA English DT Book Review C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Burton, H (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU BOWKER MAGAZINE GROUP CAHNERS MAGAZINE DIVISION PI NEW YORK PA 249 W 17TH ST, NEW YORK, NY 10011 USA SN 0363-0277 J9 LIBR J JI Libr. J. PD AUG PY 2001 VL 126 IS 13 BP 152 EP 152 PG 1 WC Information Science & Library Science SC Information Science & Library Science GA 463MR UT WOS:000170480400326 ER PT J AU Wang, F Hickner, M Ji, Q Harrison, W Mecham, J Zawodzinski, TA McGrath, JE AF Wang, F Hickner, M Ji, Q Harrison, W Mecham, J Zawodzinski, TA McGrath, JE TI Synthesis of highly sulfonated poly(arylene ether sulfone) random (statistical) copolymers via direct polymerization SO MACROMOLECULAR SYMPOSIA LA English DT Article; Proceedings Paper CT 38th Macromolecular IUPAC Symposium CY JUL 09-14, 2000 CL WARSAW, POLAND SP Int Union Pure & Appl Chem DE direct random polymerization; sulfonated poly(arylene ether sulfones); proton exchange membranes (PEM); conductivity AB Novel biphenol-based wholly aromatic poly (arylene ether sulfones) containing pendant sulfonate groups were prepared by direct aromatic nucleophilic substitution polycondensation of disodium 3,3 ' -disulfonate-4,4 ' -dichlorodiphonyl sulfone (SDCDPS), 4,4 ' -dichlorodiphenylsulfone (DCDPS) and biphenol. Copolymerization proceeded quantitatively to high molecular weight in N-methyl-2-pyrrolidinone at 190 degreesC in the presence of anhydrous potassium carbonate. Tough membranes were successfully cast from the control and the copolymers, which had a SDCDPS/DCDPS mole ratio of either 40:60 or 60:40 using N,N-dimethylactamide; the 100% SDCDPS homopolymer was water soluble. Short-term aging (30 min) indicates that the desired acid form membranes are stable to 220 degreesC in air and conductivity values at 25 degreesC of 0.110 (40%) and 0.170 S/cm (60%) were measured, which are comparable to or higher than the state-of-the art fluorinated copolymer Nafion 1135 control. The new copolymers, which contain ion conductivity sites on deactivated rings, are candidates as new polymeric electrolyte materials for proton exchange membrane (PEM) fuel cells. Further research comparing their membrane behavior to post-sulfonated systems is in progress. C1 Virginia Polytech Inst & State Univ, Dept Chem, Blacksburg, VA 24061 USA. Virginia Polytech Inst & State Univ, Mat Res Inst 0344, Blacksburg, VA 24061 USA. Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. RP McGrath, JE (reprint author), Virginia Polytech Inst & State Univ, Dept Chem, Blacksburg, VA 24061 USA. NR 20 TC 214 Z9 220 U1 6 U2 27 PU WILEY-V C H VERLAG GMBH PI BERLIN PA PO BOX 10 11 61, D-69451 BERLIN, GERMANY SN 1022-1360 J9 MACROMOL SYMP JI Macromol. Symp. PD AUG PY 2001 VL 175 BP 387 EP 395 DI 10.1002/1521-3900(200110)175:1<387::AID-MASY387>3.0.CO;2-1 PG 9 WC Polymer Science SC Polymer Science GA 490ZC UT WOS:000172082700040 ER PT J AU Wind, RA Hu, JZ Rommereim, DN AF Wind, RA Hu, JZ Rommereim, DN TI High-resolution H-1 NMR spectroscopy in organs and tissues using slow magic angle spinning SO MAGNETIC RESONANCE IN MEDICINE LA English DT Article DE magic angle spinning; magic angle turning; high-resolution H-1 NMR; brain ID MAGNETIC-RESONANCE SPECTROSCOPY; TENSOR PRINCIPAL VALUES; CHEMICAL-SHIFT; MRS; CELLS; TUMORS; SOLIDS AB It is shown that high-resolution H-1 NMR spectra of intact excised tissues and organs can be obtained by rotating the sample slowly about an axis at the magic angle of 54 degrees 44 ' with the external magnetic field. In this way tissue and cellular damage invoked by standard magic angle spinning (MAS) experiments, where spinning speeds of several kHz are typically employed, are minimized. Special RF pulse sequences, developed originally in solid state NMR, can be used to produce a spinning sideband-free isotropic spectrum. In this article the first results are shown of the brain, heart, liver, gluteus muscle, and kidney excised from mice using the 2D-phase-altered spinning sidebands (PASS) technique and employing MAS spinning speeds of 43-125 Hz. It was found that with slow sample spinning similar, and in some cases even better, spectral resolutions are obtained as compared with fast MAS. Published 2001 Wiley-Liss, Inc. C1 Pacific NW Natl Lab, Richland, WA 99352 USA. RP Wind, RA (reprint author), Pacific NW Natl Lab, POB 999,MS K8-98, Richland, WA 99352 USA. RI Hu, Jian Zhi/F-7126-2012 NR 27 TC 49 Z9 50 U1 0 U2 6 PU JOHN WILEY & SONS INC PI NEW YORK PA 605 THIRD AVE, NEW YORK, NY 10158-0012 USA SN 0740-3194 J9 MAGNET RESON MED JI Magn. Reson. Med. PD AUG PY 2001 VL 46 IS 2 BP 213 EP 218 DI 10.1002/mrm.1181 PG 6 WC Radiology, Nuclear Medicine & Medical Imaging SC Radiology, Nuclear Medicine & Medical Imaging GA 457AC UT WOS:000170114100003 PM 11477623 ER PT J AU Wadsworth, J Sherby, OD AF Wadsworth, J Sherby, OD TI Response to Verhoeven comments on Damascus steel SO MATERIALS CHARACTERIZATION LA English DT Letter ID WADSWORTH-SHERBY MECHANISM C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. Stanford Univ, Stanford, CA 94305 USA. RP Wadsworth, J (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. NR 12 TC 7 Z9 8 U1 1 U2 4 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 1044-5803 J9 MATER CHARACT JI Mater. Charact. PD AUG PY 2001 VL 47 IS 2 BP 163 EP 165 DI 10.1016/S1044-5803(01)00184-X PG 3 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Materials Science, Characterization & Testing SC Materials Science; Metallurgy & Metallurgical Engineering GA 505QY UT WOS:000172928100011 ER PT J AU Sugama, T AF Sugama, T TI Surface analyses of fluoroelastomer bearings exposed to geothermal environments SO MATERIALS LETTERS LA English DT Article DE surface analysis; fluoroelastomer bearing; geothermal environment ID X-RAY PHOTOELECTRON; SPECTROSCOPY; PLASMA AB The surfaces of fluoroelastomers, used in bearings in the down-hole pumps which extract the energy resource from geothermal brine reservoirs at 150 degreesC, are hydrothermally oxidized by the attack of hot brine. In the inductive stage of the oxidation pathway, the incorporation of oxygen into the elastomers led to the scission and break-age of C-F and C-C bonds in the polyfluorocarbon chain structure, and was followed by the formation of polyfluorocarbony derivatives as the molecular fragments. Further oxidation resulted in the substitution of carbonyl groups in the derivative by carboxylic acid groups. Concurrently, the functional carboxylic acid groups reacted with the divalent Fe and Ca cations in the geothermal brine and the bearing to form Fe- and Ca-bridged polyfluorocarboxyl complexes. This sequence of fluorocarbon --> fluorocarbonyl --> fluorocarboxylic acid --> fluorocarboxylate complexes substitutive transition caused by oxidation was detrimental to the thermal stability of fluoroelastomers, lowering the onset of the thermal decomposition temperature by similar to 120 degreesC. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Brookhaven Natl Lab, Energy Sci & Technol Dept, Energy Resources Div, Upton, NY 11973 USA. RP Sugama, T (reprint author), Brookhaven Natl Lab, Energy Sci & Technol Dept, Energy Resources Div, Upton, NY 11973 USA. NR 12 TC 16 Z9 16 U1 1 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-577X J9 MATER LETT JI Mater. Lett. PD AUG PY 2001 VL 50 IS 2-3 BP 66 EP 72 DI 10.1016/S0167-577X(00)00415-8 PG 7 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 467BQ UT WOS:000170681000004 ER PT J AU Boyce, BL Chen, X Hutchinson, JW Ritchie, RO AF Boyce, BL Chen, X Hutchinson, JW Ritchie, RO TI The residual stress state due to a spherical hard-body impact SO MECHANICS OF MATERIALS LA English DT Article DE titanium; Ti-6Al-4V; foreign object damage; impact; residual stress; X-ray diffraction; fatigue ID HIGH-CYCLE-FATIGUE; FOREIGN-OBJECT DAMAGE; CRACK-GROWTH; INDENTATION; TI-6AL-4V; LIFE AB The current study assesses the residual stresses and remnant damage caused by a spherical projectile impacting upon a flat surface. The immediate application of this information is to the problem of foreign object damage (FOD) associated with the ingestion of debris into an aircraft turbine engine and the subsequent reduction in component lifetime. The work is focused on two primary features: (i) the development of numerical models for the evaluation of the deformation and stresses associated with the impact process and (ii) the use of spatially resolved residual stress measurements to verify experimentally the numerical analysis. As a first approximation, a quasi-static numerical model was developed by ignoring time-dependent effects (i.e., strain-rate sensitivity, wave and inertia effects, etc.), where the effects of velocity were approximated by adjusting the depth and diameter of the resulting impact crater to match that of actual impact craters at the corresponding velocity. The computed residual stresses and associated elastic strain gradients were compared to experimentally measured values, obtained using synchrotron X-ray diffraction (XRD) methods. This comparison indicated that the quasi-static numerical analysis was adequate for moderate impact conditions (velocity = 200 m/s, energy = 2.7 J); however, under more aggressive conditions (velocity = 300 m/s, energy = 6.1 J), there was significant discrepancy between the numerical predictions and experimental measurements. Such discrepancy may be attributed to several factors that can occur at higher impact velocities, including strain-rate sensitivity, microcrack formation, and shear-band formation. A dynamic simulation, where the time-dependent effects of strain-rate sensitivity and elastic-wave interactions were approximated, provided results in closer agreement with the experimental diffraction observations. (C) 2001 Published by Elsevier Science Ltd. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. Harvard Univ, Div Engn & Appl Sci, Cambridge, MA 02138 USA. RP Ritchie, RO (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, 463 Evans Hall 1760,1 Cyclotron, Berkeley, CA 94720 USA. RI Hutchinson, John/B-1221-2008; Chen, Xi/B-1539-2008; Boyce, Brad/H-5045-2012; Ritchie, Robert/A-8066-2008 OI Hutchinson, John/0000-0003-2051-3105; Chen, Xi/0000-0002-2428-180X; Boyce, Brad/0000-0001-5994-1743; Ritchie, Robert/0000-0002-0501-6998 NR 27 TC 68 Z9 70 U1 0 U2 16 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-6636 J9 MECH MATER JI Mech. Mater. PD AUG PY 2001 VL 33 IS 8 BP 441 EP 454 DI 10.1016/S0167-6636(01)00064-3 PG 14 WC Materials Science, Multidisciplinary; Mechanics SC Materials Science; Mechanics GA 467BX UT WOS:000170681600002 ER PT J AU Garboczi, EJ Berryman, JG AF Garboczi, EJ Berryman, JG TI Elastic moduli of a material containing composite inclusions: effective medium theory and finite element computations SO MECHANICS OF MATERIALS LA English DT Article DE fnite element; effective medium theory; concrete; microstructure; random elastic ID INTERFACIAL TRANSITION ZONE; SEDIMENTARY-ROCKS; DIFFERENTIAL SCHEME; CONCRETE; PERCOLATION; CONDUCTIVITY; MORTARS; DIFFUSIVITY; SIMULATION; PARTICLES AB Concrete is a good example of a composite material in which the inclusions (rocks and sand) are surrounded by a thin shell of altered matrix material and embedded in the normal matrix material. Concrete, therefore, may be viewed as consisting of a matrix material containing composite inclusions. Assigning each of these phases different linear elastic moduli results in a complicated effective elastic moduli problem. A new kind of differential effective medium theory (D-EMT) is presented in this paper that is intended to address this problem. The key new idea is that each inclusion particle, surrounded by a shell of another phase, is mapped onto an effective particle of uniform elastic moduli. The resulting simpler composite, with a normal matrix. is then treated in usual D-EMT. Before use. however, the accuracy of this method must be determined, as effective medium theory of any kind is an uncertain approximation. One good way to assess the accuracy of effective medium theory is to compare to exact results for known microstructures and phase moduli. Exact results, however, only exist for certain microstructures (e.g., dilute limit of inclusions) or special choices of the moduli (e.g., equal shear moduli), Recently, a special finite element method has been developed that can compute the linear elastic moduli of an arbitrary digital image in 2D or 3D. If a random microstructure can be represented with enough resolution by a digital image, then its elastic moduli can be readily computed. This method is used, after proper error analysis, to provide stringent tests of the new D-EMT equations, which are found to compare favorably to numerically exact finite element simulations, in both 2D and 3D, with varying composite inclusion particle size distributions. (C) 2001 Published by Elsevier Science Ltd. C1 Natl Inst Stand & Technol, Bldg Mat Div, Gaithersburg, MD 20899 USA. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Garboczi, EJ (reprint author), Natl Inst Stand & Technol, Bldg Mat Div, 100 Bur Dr,Stop 8621, Gaithersburg, MD 20899 USA. RI Berryman, James/A-9712-2008 NR 45 TC 85 Z9 88 U1 4 U2 20 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-6636 J9 MECH MATER JI Mech. Mater. PD AUG PY 2001 VL 33 IS 8 BP 455 EP 470 DI 10.1016/S0167-6636(01)00067-9 PG 16 WC Materials Science, Multidisciplinary; Mechanics SC Materials Science; Mechanics GA 467BX UT WOS:000170681600003 ER PT J AU Boehlert, CJ AF Boehlert, CJ TI Part III. The tensile behavior of Ti-Al-Nb O+bcc orthorhombic alloys SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Article ID METAL-MATRIX COMPOSITES; ROOM-TEMPERATURE; MECHANICAL-PROPERTIES; MICROSTRUCTURE; CREEP AB The tensile behavior of Ti-Al-Nb alloys with Al concentrations between 12 and 26 at. pet and Nb concentrations between 22 and 38 at. pet has been investigated for temperatures between 25 degreesC and 650 degreesC. Several microstructural features were evaluated in an attempt to identify microstructure-property relationships. In particular, the effects of the phase volume fraction, composition, morphology, and grain size were examined. In addition, the constitutive properties were evaluated using single-phase microstructures, and the results provided insight into the microstructure-property relationships of the two-phase orthorhombic (O) + body-centered-cubic (bee) microstructures. The disordered fully-bcc (beta) Ti-12Al-38Nb microstructure, produced through heat treatment above the beta -transus, exhibited a room-temperature (RT) elongation of more than 27 pet and the lowest yield strength (YS-553 MPa) of all the alloys studied. The ordered fully-bcc (B2) microstructures, produced through supertransus heat treatment of near-Ti2AlNb alloys, exhibited fracture strengths up to 672 Mpa and low elongations-to-failure (epsilonf less than or equal to 0.6 pct). Thus, increasing the Al content, wl-&h favors ordering of the bee structure, significantly reduces the ductility of the bee phase. Similar to the ordered 132 microstructure, the ordered fully-O Ti2AlNb microstructures exhibited intermediate RT strength (:: 704 MPa) and epsilon (f) (less than or equal to1 pct). The O + bcc microstructures tended to exhibit strengths greater than both the fully-O and fully-bcc microstructures, and this was attributed to the finer grain sizes in the two-phase microstructures compared to their single-phase counterparts. A RT of 1125 MPa was measured for the finest-grained two-phase microstructure. The O + bcc microstructures containing greater bcc-phase volume fractions tended to exhibit greater elongations yet poorer elevated-temperature strengths. A higher Al content typically resulted in larger elevated-temperature strengths. For the Ti-12Al-38Nb bcc-dominated microstructures, fine O platelets, which precipitated during aging, provided significant strengthening and a reduction in ef for the Ti-12Al-38Nb alloy. However, large RT elongations (epsilon (f) > 12 pet) were maintained for aged Ti-12Al-38Nb microstructures, which contained 28 Vol pet O phase. Morphology did not appear to play a dominant role, as fully-lath and fully-equiaxed two-phase microstructures containing the same phase volume fractions exhibited similar RT tensile properties. The slip and cracking observations provided evidence for the ductile and brittle characteristics of the single-phase microstructures, and the slip compatibility exhibited between the two phases is an important part of why O + bee microstructures achieve attractive strengths and elongations. The YS vs temperature behavior is discussed in light of other Ti-alloy systems. C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Boehlert, CJ (reprint author), Alfred Univ, New York State Coll Ceram, Sch Ceram Engn & Mat Sci, 2 Pine St, Alfred, NY 14802 USA. NR 48 TC 44 Z9 54 U1 8 U2 39 PU MINERALS METALS MATERIALS SOC PI WARRENDALE PA 184 THORN HILL RD, WARRENDALE, PA 15086 USA SN 1073-5623 J9 METALL MATER TRANS A JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci. PD AUG PY 2001 VL 32 IS 8 BP 1977 EP 1988 DI 10.1007/s11661-001-0010-4 PG 12 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA 467CD UT WOS:000170682200010 ER PT J AU Cole, EI AF Cole, EI TI Global fault localization using induced voltage alteration SO MICROELECTRONICS RELIABILITY LA English DT Article AB Advances in integrated circuit technology have made failure site localization extremely challenging. Charge-induced voltage alteration (CIVA), low energy CIVA (LECIVA), light-induced voltage alteration (LIVA), Seebeck effect imaging (SEI) and thermally-induced voltage alteration (TIVA) are five recently developed failure analysis techniques which meet the challenge by rapidly and non-destructively localizing interconnection defects on ICs. The techniques take advantage of voltage fluctuations in a constant current power supply as an electron or photon beam is scanned across an IC. CIVA and LECIVA are scanning electron microscopy techniques that yield rapid localization of open interconnections. LIVA is a scanning optical microscopy (SOM) method that yields quick identification of damaged semiconductor junctions and determines transistor logic states. SEI and TIVA are SOM techniques that rapidly localize open interconnections and shorts respectively. LIVA, SEI, and TIVA can be performed from the backside of ICs by using the proper photon wavelength. This paper describes the CIVA, LECIVA, LIVA, TIVA, and SEI techniques in terms of the physics of signal generation, general data acquisition system required, and imaging results displaying the utility of each technique for localizing interconnection defects. (C) 2001 Published by Elsevier Science Ltd. C1 Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Cole, EI (reprint author), Sandia Natl Labs, POB 5800,MS 1081, Albuquerque, NM 87185 USA. NR 21 TC 3 Z9 3 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0026-2714 J9 MICROELECTRON RELIAB JI Microelectron. Reliab. PD AUG PY 2001 VL 41 IS 8 BP 1145 EP 1159 DI 10.1016/S0026-2714(01)00103-2 PG 15 WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology; Physics, Applied SC Engineering; Science & Technology - Other Topics; Physics GA 477EE UT WOS:000171269500009 ER PT J AU Galande, S Dickinson, LA Mian, IS Sikorska, M Kohwi-Shigematsu, T AF Galande, S Dickinson, LA Mian, IS Sikorska, M Kohwi-Shigematsu, T TI SATB1 cleavage by caspase 6 disrupts PDZ domain-mediated dimerization, causing detachment from chromatin early in T-cell apoptosis SO MOLECULAR AND CELLULAR BIOLOGY LA English DT Article ID MATRIX-ATTACHMENT REGION; BINDING PROTEIN SATB1; CHROMOSOMAL LOOP ANCHORAGE; NMDA RECEPTOR SUBUNITS; NUCLEAR MATRIX; POLY(ADP-RIBOSE) POLYMERASE; GUANYLATE KINASES; DNA FRAGMENTATION; CHAIN ENHANCER; PSD-95 FAMILY AB SATB1 is expressed primarily in thymocytes and orchestrates temporal and spatial expression of a large number of genes in the T-cell lineage. SATB1 binds to the bases of chromatin loop domains in vivo, recognizing a special DNA context with strong base-unpairing propensity. The majority of thymocytes are eliminated by apoptosis due to selection processes in the thymus. We investigated the fate of SATB1 during thymocyte and T-cell apoptosis. Here we show that SATB1 is specifically cleaved by a caspase 6-like protease at amino acid position 254 to produce a 65-kDa major fragment containing both a base-unpairing region (BUR)-binding domain and a homeodomain. We found that this cleavage separates the DNA-binding domains from amino acids 90 to 204, a region which we show to be a dimerization domain. The resulting SATB1 monomer loses its BUR-binding activity, despite containing both its DNA-binding domains, and rapidly dissociates from chromatin in vivo. We found this dimerization region to have sequence similarity to PDZ domains, which have been previously shown to be involved in signaling by conferring protein-protein interactions. SATB1 cleavage during Jurkat T-cell apoptosis induced by an anti-Fas antibody occurs concomitantly with the high-molecular-weight fragmentation of chromatin of similar to 50-kb fragments. Our results suggest that mechanisms of nuclear degradation early in apoptotic T cells involve efficient removal of SATB1 by disrupting its dimerization and cleavage of genomic DNA into loop domains to ensure rapid and efficient disassembly of higher-order chromatin structure. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Cell & Mol Biol, Berkeley, CA 94720 USA. Scripps Res Inst, La Jolla, CA USA. Natl Res Council Canada, Inst Biol Sci, Ottawa, ON K1A 0R6, Canada. RP Kohwi-Shigematsu, T (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Cell & Mol Biol, 1 Cyclotron Rd, Berkeley, CA 94720 USA. FU NCI NIH HHS [R01 CA039681, R01(CA39681), R37 CA039681]; NIGMS NIH HHS [R01 GM059901, R01(GM59901)] NR 71 TC 86 Z9 95 U1 1 U2 5 PU AMER SOC MICROBIOLOGY PI WASHINGTON PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA SN 0270-7306 J9 MOL CELL BIOL JI Mol. Cell. Biol. PD AUG PY 2001 VL 21 IS 16 BP 5591 EP 5604 DI 10.1128/MCB.21.16.5591-5604.2001 PG 14 WC Biochemistry & Molecular Biology; Cell Biology SC Biochemistry & Molecular Biology; Cell Biology GA 456UG UT WOS:000170100200029 PM 11463840 ER PT J AU Ziegelbauer, J Shan, B Yager, D Larabell, C Hoffmann, B Tjian, R AF Ziegelbauer, J Shan, B Yager, D Larabell, C Hoffmann, B Tjian, R TI Transcription factor MIZ-1 is regulated via microtubule association SO MOLECULAR CELL LA English DT Article ID DISRUPTING AGENTS; GENE-EXPRESSION; PROTEIN; PATHWAY; INVOLVEMENT; DYNAMICS; ELEMENTS; CELLS; ALPHA; TAXOL AB A synthetic drug, T113242, activates low-density lipoprotein receptor (LDLR) transcription in the presence of sterols. T113242 also covalently binds to beta -tubulin and induces microtubule depolymerization. The myc-interacting zinc finger protein (MIZ-1) associates with microtubules, can bind directly to the LDLR promoter, and can activate LDLR transcription. MIZ-1 also binds to the promoter and activates transcription of other T113242-induced genes such as alpha (2) integrin. Soft X-ray, indirect immunofluorescence, and green fluorescent protein time-lapse microscopy reveal that MIZ-1 is largely cytoplasmic but accumulates in the nuclei of HepG2 cells upon treatment with T113242. Thus, MIZ-1 appears to be regulated by association with microtubules and may activate gene transcription in response to changes in the cytoskeleton. C1 Univ Calif Berkeley, Howard Hughes Med Inst, Dept Mol & Cell Biol, Berkeley, CA 94720 USA. Tularik Inc, S San Francisco, CA 94080 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. Univ Calif San Francisco, Dept Anat, San Francisco, CA 94143 USA. RP Tjian, R (reprint author), Univ Calif Berkeley, Howard Hughes Med Inst, Dept Mol & Cell Biol, Berkeley, CA 94720 USA. OI Ziegelbauer, Joseph/0000-0001-6464-6941 FU NCI NIH HHS [CA25417] NR 24 TC 62 Z9 63 U1 0 U2 5 PU CELL PRESS PI CAMBRIDGE PA 1100 MASSACHUSETTES AVE,, CAMBRIDGE, MA 02138 USA SN 1097-2765 J9 MOL CELL JI Mol. Cell PD AUG PY 2001 VL 8 IS 2 BP 339 EP 349 DI 10.1016/S1097-2765(01)00313-6 PG 11 WC Biochemistry & Molecular Biology; Cell Biology SC Biochemistry & Molecular Biology; Cell Biology GA 469QU UT WOS:000170827000011 PM 11545736 ER PT J AU Ji, HT Goodman, J Kageyama, A AF Ji, HT Goodman, J Kageyama, A TI Magnetorotational instability in a rotating liquid metal annulus SO MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY LA English DT Article DE accretion, accretion discs; instabilities; magnetic fields; MHD; planetary systems : protoplanetary discs; Galaxy : disc ID MAGNETIZED ACCRETION DISKS; MAGNETOHYDRODYNAMIC SIMULATIONS; SHEAR INSTABILITY; OHMIC DISSIPATION; GLOBAL STABILITY; TURBULENCE; TRANSPORT; DYNAMO; ORIGIN; FLOW AB Although the magnetorotational instability (MRI) has been widely accepted as a powerful accretion mechanism in magnetized accretion discs, it has not been realized in, the laboratory. The possibility of studying MRI in a rotating liquid metal annulus (Couette flow) is explored by local and global stability analysis. Stability diagrams are drawn in dimensionless parameters, and also in terms of the-angular velocities at the inner and outer cylinders. It is shown that MRI can be triggered in a moderately rapidly rotating table-top apparatus, using easy-to-handle metals such as gallium. Practical issues of this proposed experiment are discussed. C1 Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. Princeton Univ Observ, Princeton, NJ 08544 USA. Natl Inst Fus Sci, Gifu 5095292, Japan. RP Ji, HT (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. RI Kageyama, Akira/H-4537-2013 OI Kageyama, Akira/0000-0003-0433-668X NR 39 TC 88 Z9 89 U1 1 U2 13 PU BLACKWELL SCIENCE LTD PI OXFORD PA P O BOX 88, OSNEY MEAD, OXFORD OX2 0NE, OXON, ENGLAND SN 0035-8711 J9 MON NOT R ASTRON SOC JI Mon. Not. Roy. Astron. Soc. PD AUG 1 PY 2001 VL 325 IS 2 BP L1 EP L5 DI 10.1046/j.1365-8711.2001.04647.x PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 465BJ UT WOS:000170568100001 ER PT J AU Biggin, MD AF Biggin, MD TI To bind or note to bind SO NATURE GENETICS LA English DT Editorial Material ID HOMEOPROTEIN-DNA-BINDING; IN-VIVO; DROSOPHILA; PROTEIN; GENES; INVIVO; SITES AB Gene expression is regulated by transcription factors binding selectively to particular portions of the genome. To what extent are these protein-DNA interactions influenced by the intrinsic sequence-specific recognition properties at each protein, and to what extent are they affected by other factors, such as chromatin structure or cooperative interactions with other proteins. Genome-wide surveys of DNA binding by transcription factors in vivo are beginning to provide some answers. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Genome Sci Dept, Berkeley, CA 94720 USA. RP Biggin, MD (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Genome Sci Dept, Berkeley, CA 94720 USA. NR 15 TC 16 Z9 16 U1 0 U2 0 PU NATURE AMERICA INC PI NEW YORK PA 345 PARK AVE SOUTH, NEW YORK, NY 10010-1707 USA SN 1061-4036 J9 NAT GENET JI Nature Genet. PD AUG PY 2001 VL 28 IS 4 BP 303 EP 304 DI 10.1038/91045 PG 2 WC Genetics & Heredity SC Genetics & Heredity GA 458CC UT WOS:000170174800005 PM 11479583 ER PT J AU Rupp, B Segelke, B AF Rupp, B Segelke, B TI Questions about the structure of the botulinum neurotoxin B light chain in complex with a target peptide SO NATURE STRUCTURAL BIOLOGY LA English DT Editorial Material ID RESOLUTION; PHASES C1 Univ Calif Lawrence Livermore Natl Lab, Macromol Crystallog & Struct Genom Grp, Livermore, CA 94550 USA. RP Rupp, B (reprint author), Univ Calif Lawrence Livermore Natl Lab, Macromol Crystallog & Struct Genom Grp, Livermore, CA 94550 USA. NR 6 TC 23 Z9 23 U1 0 U2 0 PU NATURE AMERICA INC PI NEW YORK PA 345 PARK AVE SOUTH, NEW YORK, NY 10010-1707 USA SN 1072-8368 J9 NAT STRUCT BIOL JI Nat. Struct. Biol. PD AUG PY 2001 VL 8 IS 8 BP 663 EP 664 DI 10.1038/90361 PG 2 WC Biochemistry & Molecular Biology; Biophysics; Cell Biology SC Biochemistry & Molecular Biology; Biophysics; Cell Biology GA 457LV UT WOS:000170139500010 PM 11473252 ER PT J AU Parsa, Z Zadorozhny, V AF Parsa, Z Zadorozhny, V TI Nonlinear dynamics on compact and beam stability SO NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS LA English DT Article; Proceedings Paper CT 3rd World Congress of Nonlinear Analysts CY JUL 19-26, 2000 CL SICILY, ITALY SP Int Federat Nonlinear Analysts DE asymptotic stability; Lyapunov equation; kernel operator; Vlasov-Poisson equation; Hilbert - Schmidt - Merser theory AB In this report, an approach to finding a solution to Vlasov-Poisson equation (VPE) is presented using direct Lyapunov method and proprrties of vortor field with a singular point, on a compact, manifold. The VPE is transformed to Fredholm's equation in an attraction region. Thus using analytical solution of the selfconsistant Vlasov equation the self-focused and acceleration of many-particle, systems are studied. The soliton-like solution and stability of the solutions are, discussed. C1 Brookhaven Natl Lab, Phys Dept 510A, Upton, NY 11973 USA. Natl Acad Sci Ukraine, Inst Cybernet, Kiev, Ukraine. RP Parsa, Z (reprint author), Brookhaven Natl Lab, Phys Dept 510A, Upton, NY 11973 USA. NR 5 TC 4 Z9 4 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0362-546X J9 NONLINEAR ANAL-THEOR JI Nonlinear Anal.-Theory Methods Appl. PD AUG PY 2001 VL 47 IS 7 BP 4897 EP 4904 DI 10.1016/S0362-546X(01)00602-2 PG 8 WC Mathematics, Applied; Mathematics SC Mathematics GA 510TJ UT WOS:000173223100056 ER PT J AU Kupperman, DA Bakhtiari, S Muscara, J AF Kupperman, DA Bakhtiari, S Muscara, J TI Steam generator mock-up for assessment of inservice inspection technology SO NUCLEAR ENGINEERING AND DESIGN LA English DT Article; Proceedings Paper CT SMiRT 15 Post Conference Seminar 2 (PCS-2) CY AUG 23-25, 1999 CL UNIV TOKYO, TOKYO, JAPAN HO UNIV TOKYO AB A steam generator mock-up has been assembled for round-robin (RR) studies of the effectiveness of currently practiced inservice inspection technology for detection of current-day flaws. The mock-up will also be used to evaluate emerging inspection technologies. The 3.66 in (12 ft)-tall mock-up contains 400 tube openings, each consisting of nine test sections that can be used to simulate current-day field-induced flaws and artifacts. Included in the mock-up are simulations of tube support plate (TSP) intersections and the tube sheet (TS). Cracks are present at the TSP, TS, and in the free span sections of the mock-up. For initial evaluation of the RR results, various eddy current methods, as well as multivariate models for data analysis techniques are being used to estimate the depth and length of defects in the mock-up. To ensure that the RR is carried out with procedures as close as possible to those implemented in the field, input was obtained from industry experts on the protocol and procedures to be used for the exercise. One initial assembly of the mock-up with a limited number of flaws and artifact has been completed and tested. A second completed configuration with additional flaw and artifacts simulations will be used for the round robin. (C) 2001 Elsevier Science B.V. All rights reserved. C1 US Nucl Regulatory Commiss, Washington, DC 20555 USA. Argonne Natl Lab, Div Energy Technol, Argonne, IL 60439 USA. RP Muscara, J (reprint author), US Nucl Regulatory Commiss, Washington, DC 20555 USA. NR 2 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0029-5493 J9 NUCL ENG DES JI Nucl. Eng. Des. PD AUG PY 2001 VL 207 IS 3 BP 299 EP 305 DI 10.1016/S0029-5493(01)00336-3 PG 7 WC Nuclear Science & Technology SC Nuclear Science & Technology GA 458HF UT WOS:000170188400005 ER PT J AU Diamond, PH Champeaux, S Malkov, M Das, A Gruzinov, I Rosenbluth, MN Holland, C Wecht, B Smolyakov, AI Hinton, FL Lin, Z Hahm, TS AF Diamond, PH Champeaux, S Malkov, M Das, A Gruzinov, I Rosenbluth, MN Holland, C Wecht, B Smolyakov, AI Hinton, FL Lin, Z Hahm, TS TI Secondary instability in drift wave turbulence as a mechanism for zonal flow and avalanche formation SO NUCLEAR FUSION LA English DT Article ID SELF-ORGANIZED CRITICALITY; TEMPERATURE-GRADIENT; PLASMA EDGE; TRANSPORT; DRIVEN; TOKAMAKS; GENERATION; DYNAMICS; PRESSURE; FLUIDS AB The article reports oil recent developments, in the theory of secondary instability in drift ion temperature gradient turbulence. Specifically, the article explores secondary instability as a mechanism for zonal flow generation, transport barrier dynamics and avalanche formation. These in turn are related to the space time statistics of the drift wave induced flux, the scaling of transport with collisionality and beta, and the spatio-temporal evolution of transport barriers. C1 Univ Calif San Diego, La Jolla, CA 92093 USA. Univ Saskatchewan, Saskatoon, SK, Canada. Gen Atom Co, San Diego, CA USA. Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. Inst Plasma Res, Bhat 382428, Gandhinagar, India. RP Diamond, PH (reprint author), Univ Calif San Diego, La Jolla, CA 92093 USA. RI Malkov, Mikhail/A-8445-2013 OI Malkov, Mikhail/0000-0001-6360-1987 NR 50 TC 99 Z9 100 U1 4 U2 9 PU INT ATOMIC ENERGY AGENCY PI VIENNA PA WAGRAMERSTRASSE 5, PO BOX 100, A-1400 VIENNA, AUSTRIA SN 0029-5515 J9 NUCL FUSION JI Nucl. Fusion PD AUG PY 2001 VL 41 IS 8 BP 1067 EP 1080 DI 10.1088/0029-5515/41/8/310 PG 14 WC Physics, Fluids & Plasmas SC Physics GA 465QP UT WOS:000170601700010 ER PT J AU Raman, R Jarboe, TR Mueller, D Schaffer, MJ Maqueda, R Nelson, BA Sabbagh, SA Bell, MG Ewig, R Fredrickson, ED Gates, DA Hosea, JC Jardin, SC Ji, H Kaita, R Kaye, SM Kugel, HW Lao, LL Maingi, R Menard, J Ono, M Orvis, D Paoletti, F Paul, SF Peng, YKM Skinner, CH Wilgen, JB Zweben, SJ AF Raman, R Jarboe, TR Mueller, D Schaffer, MJ Maqueda, R Nelson, BA Sabbagh, SA Bell, MG Ewig, R Fredrickson, ED Gates, DA Hosea, JC Jardin, SC Ji, H Kaita, R Kaye, SM Kugel, HW Lao, LL Maingi, R Menard, J Ono, M Orvis, D Paoletti, F Paul, SF Peng, YKM Skinner, CH Wilgen, JB Zweben, SJ CA NSTX Res Team TI Non-inductive current generation in NSTX using coaxial helicity injection SO NUCLEAR FUSION LA English DT Article ID ASPECT-RATIO TOKAMAK; SUSTAINMENT; TORUS; PHYSICS; START AB Coaxial helicity injection (CHI) oil the National Spherical Torus Experiment (NSTX) has produced 240 kA of toroidal current without the use of the central solenoid. Values of the current multiplication ratio (CHI produced toroidal current/injector current) up to 10 were obtained, in agreement with predictions. The discharges, which lasted for up to 200 ms, limited only by the programmed waveform, arc, more than an order of magnitude longer in duration than any CHI discharges previously produced in a spheromak or a spherical torus. C1 Univ Washington, Seattle, WA 98195 USA. Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. Gen Atom Co, San Diego, CA USA. Los Alamos Natl Lab, Los Alamos, NM USA. Columbia Univ, New York, NY USA. Oak Ridge Natl Lab, Oak Ridge, TN USA. RP Raman, R (reprint author), Univ Washington, Seattle, WA 98195 USA. RI Jardin, Stephen/E-9392-2010; Sabbagh, Steven/C-7142-2011; OI Menard, Jonathan/0000-0003-1292-3286 NR 15 TC 52 Z9 52 U1 1 U2 5 PU INT ATOMIC ENERGY AGENCY PI VIENNA PA WAGRAMERSTRASSE 5, PO BOX 100, A-1400 VIENNA, AUSTRIA SN 0029-5515 J9 NUCL FUSION JI Nucl. Fusion PD AUG PY 2001 VL 41 IS 8 BP 1081 EP 1086 DI 10.1088/0029-5515/41/8/311 PG 6 WC Physics, Fluids & Plasmas SC Physics GA 465QP UT WOS:000170601700011 ER PT J AU Kirby, RE King, FK AF Kirby, RE King, FK TI Secondary electron emission yields from PEP-II accelerator materials SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE secondary emission; collective effects; titanium nitride; beam chambers; electron desorption; surface coatings ID SURFACE; DESORPTION; METALS; BEAM AB The PEP-II B-Factory at SLAC operates with aluminum alloy and copper vacuum chambers, having design positron and electron beam currents of 2 and 1 A, respectively. Titanium nitride coating of the aluminum vacuum chamber in the arcs of the positron ring is needed in order to reduce undesirable electron-cloud effects. The total secondary electron emission yield of TiN-coated aluminum alloy has been measured after samples of beam chamber material were exposed to air and again after electron-beam bombardment, as a function of incident electron beam angle and energy. The results may be used to simulate and better understand electron-cloud effects under actual operating conditions. We also present yield measurements for other accelerator materials because new surface effects are expected to arise as beam currents increase. Copper, in particular, is growing in popularity for its good thermal conductivity and self-radiation-shielding properties, The effect of electron bombardment., "conditioning", on the yield of TiN and copper is shown. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Stanford Univ, Stanford Linear Accelerator Ctr, Stanford, CA 94309 USA. RP Kirby, RE (reprint author), Stanford Univ, Stanford Linear Accelerator Ctr, POB 4349,Mail Stop 74, Stanford, CA 94309 USA. NR 22 TC 45 Z9 46 U1 0 U2 6 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD AUG 1 PY 2001 VL 469 IS 1 BP 1 EP 12 DI 10.1016/S0168-9002(01)00704-5 PG 12 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 466WG UT WOS:000170668700001 ER PT J AU Salerno, D Pinkoski, BT Hershcovitch, A Johnson, E AF Salerno, D Pinkoski, BT Hershcovitch, A Johnson, E TI Windowless targets for intense beams SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE plasma window; gas target; internal target; liquid target ID GAS TARGETS; VACUUM; ATMOSPHERE AB Earlier results have shown that a plasma window can effectively separate vacuum from a pressure of close to 3 atm. Present results indicate that a plasma window enhanced by a venturi facilitates a rather effective vacuum separation from a 9 atm gas target. Utilization of the plasma are as the window for gas targets removes all of the limitations on beam current, energy, and energy focusing imposed by solid windows, Various applications and the new results are discussed. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Brookhaven Natl Lab, Upton, NY 11973 USA. RP Hershcovitch, A (reprint author), Brookhaven Natl Lab, Bldg 911C POB 5000, Upton, NY 11973 USA. NR 11 TC 7 Z9 7 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD AUG 1 PY 2001 VL 469 IS 1 BP 13 EP 20 DI 10.1016/S0168-9002(01)00707-0 PG 8 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 466WG UT WOS:000170668700002 ER PT J AU Ahmed, MW Androic, D Bertovic, I Bjoraker, J Chrien, R Cui, X Dehnhard, D Empl, A Furic, M Gerald, J Gill, R Hungerford, EV Juengst, H Lan, KJ Liu, JH Morris, CL O'Donnell, JM Peng, JC Petkovic, T Pile, P Planinic, M Riedel, CM Rusek, A Sutter, R Tang, L Thiessen, HA Youn, M Zeps, V AF Ahmed, MW Androic, D Bertovic, I Bjoraker, J Chrien, R Cui, X Dehnhard, D Empl, A Furic, M Gerald, J Gill, R Hungerford, EV Juengst, H Lan, KJ Liu, JH Morris, CL O'Donnell, JM Peng, JC Petkovic, T Pile, P Planinic, M Riedel, CM Rusek, A Sutter, R Tang, L Thiessen, HA Youn, M Zeps, V TI The construction and operating characteristics of a cathode strip chamber system designed to measure the reaction vertices of a stopping kaon beam SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE cathode-strip detector; stopped kaons; hypernucleus; NMS ID MULTIWIRE CHAMBERS; CHARGE-DISTRIBUTIONS AB The design. construction, and performance of a segmented-target, cathode-strip, tracking-detector is discussed. The chamber was made of low-Z materials in order to allow photons to leave the target region. It was used to determine the reaction vertex of stopping kaons, and was successfully operated in a high-intensity kaon beamline at the Alternating Gradient Synchrotron at Brookhaven National Laboratory. The vertical and horizontal resolutions of the stopping kaon reaction positions were sigma (X) similar to 0.454 mm and sigma (Y) similar to 1.180 mm. respectively. The uncertainty in the longitudinal (Z) direction is given by one-half the thickness of a target segment. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Univ Houston, Dept Phys, Houston, TX 77204 USA. Univ Zagreb, Dept Phys, HR-10000 Zagreb, Croatia. Univ Minnesota, Dept Phys & Astron, Minneapolis, MN 55455 USA. Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. Hampton Univ, Newport News, VA 23606 USA. Univ Kentucky, Dept Phys, Lexington, KY 40506 USA. RP Ahmed, MW (reprint author), Univ Houston, Dept Phys, 4800 Calhoun, Houston, TX 77204 USA. RI Planinic, Mirko/E-8085-2012; Androic, Darko/A-7482-2008 NR 10 TC 1 Z9 1 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD AUG 1 PY 2001 VL 469 IS 1 BP 95 EP 105 DI 10.1016/S0168-9002(01)00705-7 PG 11 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 466WG UT WOS:000170668700012 ER PT J AU Seidler, GT Feng, YJ AF Seidler, GT Feng, YJ TI A filter based analyzer for studies of X-ray Raman scattering SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE X-ray Raman scattering; XAFS; bent crystal analyzer; X-ray filter ID ABSORPTION FINE-STRUCTURE; SPECTROSCOPY; DEPENDENCE; GRAPHITE; LI AB Non-resonant X-ray Raman scattering (XRS) with hard X-rays holds the potential for measuring local structure and local electronic properties around low-Z atoms in environments where traditional soft X-ray techniques are inapplicable. However, the small cross-section for XRS requires that experiments must simultaneously achieve high detection efficiency, large collection solid angles, and good energy resolution. We report here that a simple X-ray analyzer consisting of an absorber and a point-focusing spatial filter can be used to study some X-ray Raman near-edge features. This apparatus has greater than 10% detection efficiency, has an energy resolution of 8 eV, and can be readily extended to collection angles of more than 1 sr. We present preliminary measurements of the XRS from the nitrogen 1 s shell in pyrolitic boron nitride. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Univ Washington, Dept Phys, Seattle, WA 98195 USA. Pacific NW Consortium, Collaborat Access Team, Adv Photon Source, Argonne, IL 60439 USA. RP Seidler, GT (reprint author), Univ Washington, Dept Phys, Box 351560, Seattle, WA 98195 USA. RI Seidler, Gerald/I-6974-2012; Feng, Yejun/A-5417-2009 OI Feng, Yejun/0000-0003-3667-056X NR 16 TC 3 Z9 3 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD AUG 1 PY 2001 VL 469 IS 1 BP 127 EP 132 DI 10.1016/S0168-9002(01)00461-2 PG 6 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 466WG UT WOS:000170668700015 ER PT J AU Wirtz, L Lemell, C Reinhold, CO Hagg, L Burgdorfer, J AF Wirtz, L Lemell, C Reinhold, CO Hagg, L Burgdorfer, J TI Vertical incidence of slow Ne10+ ions on an LiF surface: Suppression of the trampoline effect SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS LA English DT Article; Proceedings Paper CT 13th International Workshop on Inelastic Ion-Surface Collisions CY NOV 20-24, 2000 CL SAN CARLOS BARILO, ARGENTINA DE highly charged ions; charge exchange; insulator surfaces; trampoline effect ID HIGHLY-CHARGED IONS; METAL-SURFACES; BARRIER MODEL; NEUTRALIZATION; ATOMS AB We present a Monte Carlo simulation of the neutralization of a slow Ne10+ ion in vertical incidence on an LiF(100) surface. The rates for resonant electron transfer between surface F- ions and the projectile are calculated using a classical trajectory Monte Carlo simulation, We investigate the influence of the hole mobility on the neutralization sequence. It is shown that backscattering above the surface due to the local positive charge up of the surface ("trampoline effect") does not take place. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Vienna Univ Technol, Inst Theoret Phys, A-1040 Vienna, Austria. Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. Mid Sweden Univ, Dept Engn Math & Phys, S-85170 Sundsvall, Sweden. RP Wirtz, L (reprint author), Vienna Univ Technol, Inst Theoret Phys, Wiedner Hauptstr 8-10 136, A-1040 Vienna, Austria. RI Lemell, Christoph/B-5147-2009; OI Lemell, Christoph/0000-0003-2560-4495; Reinhold, Carlos/0000-0003-0100-4962 NR 14 TC 6 Z9 6 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-583X J9 NUCL INSTRUM METH B JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms PD AUG PY 2001 VL 182 BP 36 EP 40 DI 10.1016/S0168-583X(01)00652-8 PG 5 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Atomic, Molecular & Chemical; Physics, Nuclear SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 459KD UT WOS:000170248800007 ER PT J AU Wang, SJ Lin, WY Chen, MN Chen, JT Ho, WL Hsieh, BT Huang, H Shen, LH Ting, G Knapp, FF AF Wang, SJ Lin, WY Chen, MN Chen, JT Ho, WL Hsieh, BT Huang, H Shen, LH Ting, G Knapp, FF TI Histologic study of effects of radiation synovectomy with Rhenium-188 microsphere SO NUCLEAR MEDICINE AND BIOLOGY LA English DT Article DE radiation synovectomy; Rhenium-188 microsphere; rheumatoid arthritis ID RADIOPHARMACEUTICALS; SYNOVITIS; RE-188; Y-90; KNEE AB Rhenium-188 microsphere is a relatively new radiation synovectomy agent developed for the treatment of rheumatoid arthritis. It has been shown that the levels of unwanted extra-articular radiation are negligible with this agent. A histologic study was conducted to assess the effect of radiation synovectomy on synovium and articular cartilage after intra-articular injection of various doses of Re-188 microspheres into the knee joints of rabbits. Intra-articular injection of Re-188 microspheres into rabbit knee joints resulted in mild reactive inflammation and thrombotic occlusion of vessels which subsided rapidly. Sclerosis of subsynovium could be seen 12 weeks after injection. No evidence of damage to articular cartilage was noted. There was no significant difference in the articular pattern after injection of 0.3 or 0.6 mCi Re-188 microspheres. This study suggests that a treatment dose of Re-188 microspheres causes transient inflammation of synovium without any detectable damage to the articular cartilage of knee joint. (C) 2001 Elsevier Science Inc. All rights reserved. C1 Vet Gen Hosp, Dept Nucl Med, Taichung 40705, Taiwan. Natl Yang Ming Univ, Taichung 40705, Taiwan. Inst Nucl Energy Res, Taipei, Taiwan. Vet Gen Hosp, Dept Pathol, Taichung, Taiwan. Oak Ridge Natl Lab, Oak Ridge, TN USA. RP Wang, SJ (reprint author), Vet Gen Hosp, Dept Nucl Med, 160 Taichung Harbor Rd,Sect 3, Taichung 40705, Taiwan. NR 11 TC 22 Z9 27 U1 0 U2 1 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 USA SN 0969-8051 J9 NUCL MED BIOL JI Nucl. Med. Biol. PD AUG PY 2001 VL 28 IS 6 BP 727 EP 732 DI 10.1016/S0969-8051(01)00228-1 PG 6 WC Radiology, Nuclear Medicine & Medical Imaging SC Radiology, Nuclear Medicine & Medical Imaging GA 465LU UT WOS:000170591100014 PM 11518655 ER PT J AU Logan, HE AF Logan, HE TI Supersymmetric radiative corrections at large tan beta SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS LA English DT Article; Proceedings Paper CT International Symposium Celebrating 30 Years of Supersymmetry CY OCT 13-27, 2000 CL MINNEAPOLIS, MN ID CHARGED-HIGGS-BOSON; CHANGING NEUTRAL CURRENTS; TOP-QUARK; STANDARD MODEL; 2-HIGGS-DOUBLET MODEL; THRESHOLD CORRECTIONS; YUKAWA UNIFICATION; FERMILAB TEVATRON; QCD CORRECTIONS; CERN LHC AB In the minimal supersymmetric extension of the Standard Model (MSSM), fermion masses and Yukawa couplings receive radiative corrections at one loop from diagrams involving the supersymmetric particles. The corrections to the relation between down-type fermion masses and Yukawa couplings are enhanced by tan beta, which makes them potentially very significant at large tan beta. These corrections affect a wide range of processes in the MSSM, including neutral and charged Higgs phenomenology, rare B meson decays, and renormalization of the CKM matrix. We give a pedagogical review of the sources and phenomenological effects of these corrections. C1 Fermilab Natl Accelerator Lab, Dept Theoret Phys, Batavia, IL 60510 USA. RP Fermilab Natl Accelerator Lab, Dept Theoret Phys, Batavia, IL 60510 USA. NR 66 TC 6 Z9 6 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5632 EI 1873-3832 J9 NUCL PHYS B-PROC SUP JI Nucl. Phys. B-Proc. Suppl. PD AUG PY 2001 VL 101 BP 279 EP 288 DI 10.1016/S0920-5632(01)01512-2 PG 10 WC Physics, Particles & Fields SC Physics GA 462JR UT WOS:000170417400028 ER PT J AU Quiros, M AF Quiros, M TI Electroweak baryogenesis and the Higgs and stop masses SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS LA English DT Article; Proceedings Paper CT International Symposium Celebrating 30 Years of Supersymmetry CY OCT 13-27, 2000 CL MINNEAPOLIS, MINNESOTA ID SUPERSYMMETRIC STANDARD MODEL; PHASE-TRANSITION; FINITE-TEMPERATURE; CP-VIOLATION; DIMENSIONAL REDUCTION; BARYON ASYMMETRY; 2-LOOP CORRECTIONS; LEADING ORDER; FIELD-THEORY; LIGHT STOP AB In this talk we review the actual situation concerning electroweak phase transition and baryogenesis in the minimal supersymmetric extension of the Standard Model. A strong enough phase transition requires light Higgs and stop eigenstates. For a Higgs mass in the range 110-115 GeV, there is a stop window in the range 105-165 GeV. If the Higgs is heavier than 115 GeV, stronger constrains are imposed on the space of supersymmetric parameters. A baryon-to-ent ropy ratio is generated by the chargino sector provided that the mu parameter has a CP-violating phase larger than similar to 0.04. C1 Inst Estruct Mat, E-28006 Madrid, Spain. RP Quiros, M (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. NR 77 TC 28 Z9 28 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5632 J9 NUCL PHYS B-PROC SUP JI Nucl. Phys. B-Proc. Suppl. PD AUG PY 2001 VL 101 BP 401 EP 409 DI 10.1016/S0920-5632(01)01526-2 PG 9 WC Physics, Particles & Fields SC Physics GA 462JR UT WOS:000170417400042 ER PT J AU Fjeld, RA DeVol, TA Goff, RW Blevins, MD Brown, DD Ince, SM Elzerman, AW AF Fjeld, RA DeVol, TA Goff, RW Blevins, MD Brown, DD Ince, SM Elzerman, AW TI Characterization of the mobilities of selected actinides and fission/activation products in laboratory columns containing subsurface material from the Snake River Plain SO NUCLEAR TECHNOLOGY LA English DT Article DE radionuclide mobility; subsurface media; laboratory column studies ID SHALLOW AQUIFER; PLUTONIUM; ADSORPTION; TRANSPORT; OXIDES AB Laboratory column tests were performed to characterize the mobilities of Co-60, Sr-90, Cs-137, U-233, Pu-239, and Am-241 in a basalt sample and a composite of sedimentary interbed from the Snake River Plain at the Idaho National Engineering and Environmental Laboratory. The radionuclides were spiked into a synthetic groundwater (pH 8, ionic strength = 0.004 M) and introduced into the columns (D = 2.6 cm, L = 15.2 cm) as finite steps with a width of I pore volume followed by unspiked synthetic groundwater. The effluent concentrations were measured continuously for up to 200 pore volumes. Hydrogen-3 was used as a nonreactive tracer in all of the experiments to monitor for channeling. In the basalt sample, the behavior of Sr-90, Cs-137, and U-233 was quire different from that of Co-60, Pu-239, and Am-241. The column effluent curves for the former were characterized by single peaks containing, within the limits of experimental uncertainty, all of the activity in the spike. The mobilities were ordered as follows: U-233 ((R) over bar = 5.6) > Sr-90 ((R) over bar = 29) > Cs-137 ((R) over bar = 79). The curves for the other radionuclides were characterized by two or three fractions, each having a distinctly different mobility. Cobalt-60 had high- ((R) over bar < 3), intermediate- ((R) over bar = 34), and low- (R > 200) mobility fractions. Although a majority of the Pu-239 and Am-241 had low mobility (R > 200), there were high-mobility (R < 3) fractions of each (17 to 29% for Pu-239 and 7 to 12% for Am-241). In sedimentary interbed, mobilities were generally much lower than in basalt. Uranium-233 was the only radionuclide with 100% recovery within 200 displaced pore volumes, and it had a retardation factor of 30. However, high-mobility fractions were observed for Co-60 (I to 4%) and Pu-239 (1.1 to 2.4%). These results could have important implications with respect to transport modeling. If the multiple-mobility fractions observed here are also present in the field, transport predictions based on classical modeling approaches that incorporate mobilities from batch sorption experiments are likely to be in error. C1 Clemson Univ, Dept Environm Engn Sci, Anderson, SC 29625 USA. Lockheed martin Idaho Technol Corp, Idaho Natl Engn & Environm Lab, Idaho Falls, ID 83415 USA. RP Fjeld, RA (reprint author), Clemson Univ, Dept Environm Engn Sci, 342 Comp Court, Anderson, SC 29625 USA. NR 30 TC 10 Z9 10 U1 3 U2 9 PU AMER NUCLEAR SOCIETY PI LA GRANGE PK PA 555 N KENSINGTON AVENUE, LA GRANGE PK, IL 60526 USA SN 0029-5450 J9 NUCL TECHNOL JI Nucl. Technol. PD AUG PY 2001 VL 135 IS 2 BP 92 EP 108 PG 17 WC Nuclear Science & Technology SC Nuclear Science & Technology GA 452FE UT WOS:000169846200002 ER PT J AU Yang, WS Khalil, HS AF Yang, WS Khalil, HS TI Blanket design studies of a lead-bismuth eutectic-cooled accelerator transmutation of waste system SO NUCLEAR TECHNOLOGY LA English DT Article DE accelerator-driven system; waste transmutation; lead-bismuth eutectic AB The results of blanket design studies for a lead-bismuth eutectic (LBE)-cooled accelerator transmutation of waste system are presented These studies focused primarily on achieving two important and somewhat contradictory performance objectives: First, maximizing discharge burnup, so as to minimize the number of successive recycle stages and associated recycle losses, and second, minimizing burnup reactivity loss over an operating cycle, to minimize reduction of source multiplication with burnup. The blanket is assumed to be fueled with a nonuranium metallic dispersion fuel; pyrochemical techniques are used for recycle of residual transuranic (TRU) actinides in this fuel after irradiation. The key system objective of high-discharge burnup is shown to be achievable in a configuration with comparatively high power density and relatively low burnup reactivity loss. System design and operating characteristics that satisfy these goals while meeting kev thermal-hydraulic and materials-related design constraints have been preliminarily developed. Results of the performance evaluations indicate that an average discharge burnup of similar to 27% is achieved with a similar to3.5-yr fuel residence time. Reactivity loss over the half-pear cycle is 5.3%Deltak. The peak fast fluence value at discharge, the TRU fraction in the charged fuel, and the peak coolant velocity are well within the assumed design limits. Owing to its use of nonuranium fuel, this proposed LBE-cooled system can consume light water reactor-discharge TRUs at the maximum rate achievable per unit of fission energy produced (similar to1.0 g/MWd). C1 Argonne Natl Lab, Argonne, IL 60439 USA. Chosun Univ, Dept Nucl Engn, Dong Gu, Kwangju 501759, South Korea. RP Yang, WS (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. NR 22 TC 14 Z9 14 U1 0 U2 0 PU AMER NUCLEAR SOCIETY PI LA GRANGE PK PA 555 N KENSINGTON AVENUE, LA GRANGE PK, IL 60526 USA SN 0029-5450 J9 NUCL TECHNOL JI Nucl. Technol. PD AUG PY 2001 VL 135 IS 2 BP 162 EP 182 PG 21 WC Nuclear Science & Technology SC Nuclear Science & Technology GA 452FE UT WOS:000169846200008 ER PT J AU Daughdrill, GW Ackerman, J Isern, NG Botuyan, MV Arrowsmith, C Wold, MS Lowry, DF AF Daughdrill, GW Ackerman, J Isern, NG Botuyan, MV Arrowsmith, C Wold, MS Lowry, DF TI The weak interdomain coupling observed in the 70 kDa subunit of human replication protein A is unaffected by ssDNA binding SO NUCLEIC ACIDS RESEARCH LA English DT Article ID SINGLE-STRANDED-DNA; TRIPLE-RESONANCE NMR; COMPLEX-FORMATION; IMPROVED SENSITIVITY; A INTERACTIONS; DOMAINS; P53; CHEY; SPECTROSCOPY; EXPRESSION AB Replication protein A (RPA) is a heterotrimeric, multifunctional protein that binds single-stranded DNA (ssDNA) and is essential for eukaryotic DNA metabolism. Using heteronuclear NMR methods we have investigated the domain interactions and ssDNA binding of a fragment from the 70 kDa subunit of human RPA (hRPA70). This fragment contains an N-terminal domain (NTD), which is important for hRPA70-protein interactions, connected to a ssDNA-binding domain (SSB1) by a flexible linker (hRPA70(1-326)). Correlation analysis of the amide H-1 and N-15 chemical shifts was used to compare the structure of the NTD and SSB1 in hRPA70(1-326) with two smaller fragments that corresponded to the individual domains. High correlation coefficients verified that the NTD and SSB1 maintained their structures in hRPA70(1-326), indicating weak interdomain coupling. Weak interdomain coupling was also suggested by a comparison of the transverse relaxation rates for hRPA70(1-326) and one of the smaller hRPA70 fragments containing the NTD and the flexible linker (hRPA70(1-168)). We also examined the structure of hRPA70(1-326) after addition of three different ssDNA substrates. Each of these substrates induced specific amide H-1 and/or N-15 chemical shift changes in both the NTD and SSB1. The NTD and SSB1 have similar topologies, leading to the possibility that ssDNA binding induced the chemical shift changes observed for the NTD. To test this hypothesis we monitored the amide H-1 and N-15 chemical shift changes of hRPA70(1-168) after addition of ssDNA. The same amide H-1 and N-15 chemical shift changes were observed for the NTD in hRPA70(1-168) and hRPA70(1-326). The NTD residues with the largest amide H-1 and/or N-15 chemical shift changes were localized to a basic cleft that is important for hRPA70-protein interactions. Based on this relationship, and other available data, we propose a model where binding between the NTD and ssDNA interferes with hRPA70-protein interactions. C1 Univ Idaho, Dept Microbiol Mol Biol & Biochem, Moscow, ID 83844 USA. Stanford Univ, Stanford, CA 94309 USA. Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. Univ Toronto, Ontario Canc Inst, Div Mol & Struct Biol, Toronto, ON M5G 2M9, Canada. Univ Toronto, Dept Med Biophys, Toronto, ON M5G 2M9, Canada. Univ Iowa, Coll Med, Dept Biochem, Iowa City, IA 52240 USA. RP Daughdrill, GW (reprint author), Univ Idaho, Dept Microbiol Mol Biol & Biochem, POB 443052,Life Sci S Room 142, Moscow, ID 83844 USA. RI Wold, Marc/F-5806-2010; Isern, Nancy/J-8016-2013; OI Isern, Nancy/0000-0001-9571-8864 NR 36 TC 38 Z9 38 U1 0 U2 0 PU OXFORD UNIV PRESS PI OXFORD PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND SN 0305-1048 J9 NUCLEIC ACIDS RES JI Nucleic Acids Res. PD AUG 1 PY 2001 VL 29 IS 15 BP 3270 EP 3276 DI 10.1093/nar/29.15.3270 PG 7 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 460PC UT WOS:000170316800017 PM 11470885 ER PT J AU Paterson, D Allman, BE McMahon, PJ Lin, J Moldovan, N Nugent, KA McNulty, I Chantler, CT Retsch, CC Irving, THK Mancini, DC AF Paterson, D Allman, BE McMahon, PJ Lin, J Moldovan, N Nugent, KA McNulty, I Chantler, CT Retsch, CC Irving, THK Mancini, DC TI Spatial coherence measurement of X-ray undulator radiation SO OPTICS COMMUNICATIONS LA English DT Article DE undulator radiation; X-ray region; spatial coherence measurement; Young's experiment; speckle size ID SYNCHROTRON-RADIATION; INTENSITY; LASER AB We measure the spatial coherence function of a quasi-monochromatic 1.1 keV X-ray beam from an undulator at a third-generation synchrotron. We use a Young's slit apparatus to measure the coherence function and find that the coherence measured is poorer than expected. We show that this difference may be attributed to the effects of speckle due to the beamline optics. The conditions for successful coherence transport are considered. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia. Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Paterson, D (reprint author), Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia. RI Nugent, Keith/J-2699-2012; Chantler, Christopher/D-4744-2013; Nugent, Keith/I-4154-2016 OI Nugent, Keith/0000-0003-1522-8991; Chantler, Christopher/0000-0001-6608-0048; Nugent, Keith/0000-0002-4281-3478 NR 24 TC 59 Z9 60 U1 1 U2 6 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0030-4018 J9 OPT COMMUN JI Opt. Commun. PD AUG 1 PY 2001 VL 195 IS 1-4 BP 79 EP 84 DI 10.1016/S0030-4018(01)01276-7 PG 6 WC Optics SC Optics GA 457JT UT WOS:000170134300010 ER PT J AU Omenetto, FG Taylor, AJ Moores, MD Arriaga, J Knight, JC Wadsworth, WJ Russell, PSJ AF Omenetto, FG Taylor, AJ Moores, MD Arriaga, J Knight, JC Wadsworth, WJ Russell, PSJ TI Simultaneous generation of spectrally distinct third harmonics in a photonic crystal fiber SO OPTICS LETTERS LA English DT Article ID MODE OPTICAL-FIBER; MU-M; PULSES AB By coupling femtosecond pulses at lambda = 1.55 mum in a short length (Z = 95 cm) of photonic crystal fiber, we observe the simultaneous generation of two visible radiation components. Frequency-resolved optical gating experiments combined with analysis and modal simulations suggest that the mechanism for their generation is third-harmonic conversion of the fundamental pulse and its split Raman self-shifted component. (C) 2001 Optical Society of America. C1 Univ Calif Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. Univ Florida, Dept Phys, Gainesville, FL 32611 USA. Univ Autonoma Puebla, Inst Fis, Puebla 72570, Mexico. Univ Bath, Dept Phys, Bath BA2 7AY, Avon, England. RP Omenetto, FG (reprint author), Univ Calif Los Alamos Natl Lab, Div Mat Sci & Technol, MST-10,MS K764, Los Alamos, NM 87545 USA. RI Wadsworth, William/A-1317-2012; Knight, Jonathan/D-3879-2011; Russell, Philip/G-5132-2012 OI Knight, Jonathan/0000-0002-0802-8804; Russell, Philip/0000-0002-8972-2477 NR 11 TC 83 Z9 85 U1 2 U2 11 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 0146-9592 J9 OPT LETT JI Opt. Lett. PD AUG 1 PY 2001 VL 26 IS 15 BP 1158 EP 1160 DI 10.1364/OL.26.001158 PG 3 WC Optics SC Optics GA 457MH UT WOS:000170140900014 PM 18049548 ER PT J AU Hambach, D Schneider, G Gullikson, EM AF Hambach, D Schneider, G Gullikson, EM TI Efficient high-order diffraction of extreme-ultraviolet light and soft x-rays by nanostructured volume gratings SO OPTICS LETTERS LA English DT Article ID HIGH-RESOLUTION; ZONE PLATES; TRANSMISSION; MICROSCOPY AB We report what is believed to be the first demonstration that volume gratings diffract extreme-ultraviolet light (EUV) or soft x-rays into high orders approximately an order of magnitude more efficiently than predicted by classical thin-grating theory. At the 13-nm wavelength, copolymer grating structures with 200-nm period and aspect ratios of similar to 10:1 achieved diffraction efficiencies of 11.2%, 15.3%, 11.5%, and 9.1% in the orders m of 2, 3, 4, and 5, respectively. In addition, the measured transmission spectra are consistent with electrodynamic calculations by coupled-wave theory. High-order diffraction can now be employed for substantially improved diffractive EUV and x-ray optics, e.g., highly resolving diffractive lenses and large-aperture condensers. (C) 2001 Optical Society of America. C1 Univ Gottingen, Inst Rotgenphys, D-37073 Gottingen, Germany. Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA. RP Hambach, D (reprint author), Univ Gottingen, Inst Rotgenphys, Geiststr 11, D-37073 Gottingen, Germany. NR 9 TC 17 Z9 18 U1 1 U2 2 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 0146-9592 J9 OPT LETT JI Opt. Lett. PD AUG 1 PY 2001 VL 26 IS 15 BP 1200 EP 1202 DI 10.1364/OL.26.001200 PG 3 WC Optics SC Optics GA 457MH UT WOS:000170140900028 PM 18049562 ER PT J AU Pint, BA Garratt-Reed, AJ Hobbs, LW AF Pint, BA Garratt-Reed, AJ Hobbs, LW TI Analytical electron-microscopy study of the breakdown of alpha-Al(2)O(3) scales formed on oxide dispersion-strengthened alloys SO OXIDATION OF METALS LA English DT Article DE high-temperature oxidation; ODS alloys; Al(2)O(3); adhesion; reactive-element effect ID NI3AL-0.1B BASE ALLOYS; CR-AL ALLOYS; OXIDATION BEHAVIOR; CYCLIC OXIDATION; ALUMINA SCALES; REACTIVE ELEMENTS; GRAIN-BOUNDARIES; IRON ALUMINIDES; MORPHOLOGY; MECHANISM AB Alumina scales formed during cyclic oxidation at 1200 degreesC on three Y(2)O(3)Al(2)O(3)-dispersed alloys: Ni(3)Al, beta -NiAl, and FeCrAl (Inco alloy MA956) were characterized In each case, the Y(2)O(3) dispersion improved the alpha -Al(2)O(3) scale adhesion, but in the case of Ni(3)Al, an external Ni-rich oxide spalled and regrew, indicating a less-adherent scale. A scanning-transmission electron microscope (STEM) analysis of the scale near the metal-scale interface revealed that the scale formed an ODS FeCrAl showed no base metal-oxide formation. However, the scale formed on ODS Ni(3)Al showed evidence of cracking and Ni-rich oxides were observed. The microstructures and mechanisms discussed may be relevant to a thermal-barrier coating with an Al-depleted aluminide bond coat nearing failure. C1 MIT, HH Uhlig Corros Lab, Cambridge, MA 02139 USA. RP Pint, BA (reprint author), Oak Ridge Natl Lab, POB 2008, Oak Ridge, TN 37831 USA. RI Pint, Bruce/A-8435-2008 OI Pint, Bruce/0000-0002-9165-3335 NR 58 TC 29 Z9 29 U1 0 U2 7 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0030-770X J9 OXID MET JI Oxid. Met. PD AUG PY 2001 VL 56 IS 1-2 BP 119 EP 145 DI 10.1023/A:1010347504052 PG 27 WC Metallurgy & Metallurgical Engineering SC Metallurgy & Metallurgical Engineering GA 444WR UT WOS:000169423500007 ER PT J AU Currier, RP Torraco, DJ Cross, JB Wagner, GL Gladden, PD Vanderberg, LA AF Currier, RP Torraco, DJ Cross, JB Wagner, GL Gladden, PD Vanderberg, LA TI Deactivation of clumped and dirty spores of Bacillus globigii SO OZONE-SCIENCE & ENGINEERING LA English DT Article DE ozone; spores; biocide; Bacillus globigii; computer components; sterilizaton ID OZONE; WATER AB Issues associated with deactivating clumped spores of a biological pathogen are discussed within the context of decontaminating a civil facility using reactive gases. It is argued that gases will prove necessary to fully complete a decontamination and restoration operation following contamination with a biological pathogen. This is simply due to the fact that pathogenic agents may have found their way into hidden and otherwise inaccessible spaces, such as air ducts and cracks, where liquid-based reagents may prove impractical to employ. Results are given for ozone de-activating both clumped and dirty spores of the pathogen surrogate B. globigii. Re-hydration of dry spores is found to greatly enhance the effectiveness of ozone. The re-hydration process is found to require hours if moist air is employed as the source of water. At high relative humidity, capillary condensation of water within spore clumps is found to adversely effect the global deactivation rate in clumped spores. The cleanliness of the spores did not significantly affect the global kinetics. Using selected electronic materials, estimates of collateral damage induced by the reactive gas are also reported. C1 Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA. RP Currier, RP (reprint author), Los Alamos Natl Lab, Div Chem, Mail Stop J567, Los Alamos, NM 87545 USA. NR 14 TC 13 Z9 13 U1 0 U2 2 PU LEWIS PUBLISHERS PI BOCA RATON PA 2000 CORPORATE BLVD, NW, BOCA RATON, FL 33431 USA SN 0191-9512 J9 OZONE-SCI ENG JI Ozone-Sci. Eng. PD AUG PY 2001 VL 23 IS 4 BP 285 EP 294 DI 10.1080/01919510108962011 PG 10 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 468XP UT WOS:000170783700003 ER PT J AU Ramanathan, S Clemens, BM McIntyre, PC Dahmen, U AF Ramanathan, S Clemens, BM McIntyre, PC Dahmen, U TI Microstructural study of epitaxial platinum and permalloy/platinum films grown on (0001) sapphire SO PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES LA English DT Article ID BASAL-PLANE SAPPHIRE; SURFACE; DEPENDENCE; DEPOSITION; ALUMINA AB This paper reports a detailed transmission electron microscopy study of epitaxial Pt films grown by sputtering on single-crystal sapphire (0001) substrates. The orientation relationship between the Pt film and the substrate was determined to be. 111 + parallel to (0001)Al2O3, [110](Pt) parallel to [10 (1) over bar0](Al2O3). As a result of this relationship there are two orientation variants, related to each other by 60 degrees rotation about the [111] axis. Microstructural analysis using rose plots showed a large fraction (82%) of the grain boundaries oriented parallel to preferred facets along [110] directions. Although facet orientations occur every 60 degrees, facet junctions prefer 120 degrees angles. The films exhibited the mazed bicrystal structure, with larger grains displaying increasingly convoluted shapes, a behaviour that was quantified using the external form factor to describe grain morphologies. From high-resolution imaging of cross-section samples, the preferred boundaries were found to be perpendicular to the substrate and were identified as Sigma = 3, {112} symmetrical tilt boundaries. Quantitative analysis of high-resolution micrographs using the geometric phase technique shows a rigid shift of 0.3d({111}) parallel to the interface where the boundary is not constrained by the rigid substrate. Lattice images taken along the sapphire [1 (2) over bar 10] and [10 (1) over bar0] zone axes revealed a sharp interface between the Pt and the sapphire with no intermediate phases. The possible reasons for twinning in these films are discussed in detail, and it is concluded that the twin variants nucleate at the initial stages of island growth. Finally, we also report the growth of epitaxial Ni-Fe films on Pt. It is shown that the Ni-Fe film grows as a bicrystal with the twin boundaries correlated to those of Pt. These results clearly show the importance of being able to control the microstructure of the seed layer to grow defect-free multilayers. C1 Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA. RP Ramanathan, S (reprint author), Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA. NR 30 TC 17 Z9 17 U1 3 U2 20 PU TAYLOR & FRANCIS LTD PI LONDON PA 11 NEW FETTER LANE, LONDON EC4P 4EE, ENGLAND SN 0141-8610 J9 PHILOS MAG A JI Philos. Mag. A-Phys. Condens. Matter Struct. Defect Mech. Prop. PD AUG PY 2001 VL 81 IS 8 BP 2073 EP 2094 PG 22 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Physics, Applied; Physics, Condensed Matter SC Materials Science; Metallurgy & Metallurgical Engineering; Physics GA 461FP UT WOS:000170354500013 ER PT J AU Savoini, B Ballesteros, C Santiuste, JEM Gonzalez, R Popov, AI Chen, Y AF Savoini, B Ballesteros, C Santiuste, JEM Gonzalez, R Popov, AI Chen, Y TI Copper and iron precipitates in thermochemically reduced yttria-stabilized zirconia crystals SO PHILOSOPHICAL MAGAZINE LETTERS LA English DT Article ID X-RAY-ABSORPTION; OPTICAL-PROPERTIES; MAGNESIUM-OXIDE; ELECTRON; COLLOIDS; DOPANTS AB Thermochemical reduction (TCR) at 2173 K has been performed on nominally pure yttria-stabilized zirconia crystals. After TCR the crystals become opaque owing to a very intense optical absorption band centred at 2.64 eV. Analytical transmission electron microscopy studies have shown that both copper and iron impurity precipitates are present. Colloids with different sizes and shapes are inhomogeneously distributed and both large and small precipitates are observed. Most of the large precipitates are elongated and irregular shaped. with an average dimension of 130 nm x 30 nm, they all contain copper. Exclusively copper and exclusively iron contents can be Found in different parts of the same precipitate, an observation that is compatible with the fact that copper and iron are inmiscible. Smaller precipitates, with an average size of about 5 nm, are usually iron rich or copper rich. C1 Univ Carlos III Madrid, Dept Fis, Escuela Politecn Super, Madrid 28911, Spain. US DOE, Div Mat Sci, Off Basic Energy Sci, ER 131, Germantown, MD 20874 USA. Univ Latvia, Inst Solid State Phys, LV-1063 Riga, Latvia. RP Savoini, B (reprint author), Univ Carlos III Madrid, Dept Fis, Escuela Politecn Super, Ave Univ 30, Madrid 28911, Spain. RI Dep Theor Physics, Computer Modeling/E-6336-2013; Popov, Anatoli /E-8828-2010; Munoz Santiuste, Juan/K-7461-2015; OI Popov, Anatoli /0000-0003-2795-9361; Munoz Santiuste, Juan/0000-0001-6286-139X; SAVOINI, BEGONA/0000-0002-7347-7569; BALLESTEROS, CARMEN INES/0000-0002-8983-4751 NR 24 TC 0 Z9 0 U1 0 U2 5 PU TAYLOR & FRANCIS LTD PI LONDON PA 11 NEW FETTER LANE, LONDON EC4P 4EE, ENGLAND SN 0950-0839 J9 PHIL MAG LETT JI Philos. Mag. Lett. PD AUG PY 2001 VL 81 IS 8 BP 555 EP 561 DI 10.1080/09500830110057254 PG 7 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Physics, Applied; Physics, Condensed Matter SC Materials Science; Metallurgy & Metallurgical Engineering; Physics GA 458UZ UT WOS:000170214500005 ER PT J AU Kato, J Itoh, KM Haller, EE AF Kato, J Itoh, KM Haller, EE TI Electric field broadening of arsenic donor states in strongly compensated n-type Ge :(As, Ga) SO PHYSICA B LA English DT Article; Proceedings Paper CT 54th Yamada Conference on Shallow-Level Centers in Semiconductors (SLCS-9) CY SEP 24-27, 2000 CL AWAJU ISL, JAPAN SP Yamada Sci Fdn DE impurity absorption; compensated semiconductors; impurity distribution ID SEMICONDUCTORS; IMPURITIES AB We discuss on the broadening of ground-state to bound excited-state transitions of shallow donors in strongly compensated n-type Ge in the presence of electric fields and their gradients arising from randomly distributed ionized impurities. Low-temperature (T = 3.2 K) far-infrared absorption spectra of strongly compensated n-type Ge:(As,Ca) have been obtained for samples having ionized impurity concentration N-I = 2.2 x 10(13)-2.6 x 10(14) cm(-3). Absorption peaks corresponding to 1s-2p (+/-) transition of arsenic impurities are observed, and broadened linearly with the ionized impurity concentration due to interactions between electrons and the quadrupole moments: of ionized donors. The slope of the peak line width plotted against N-I changes at NI approximate to 8 x 10(13) cm(-3) due to the transition of ionized impurity distribution from random (N-I < 8 x 10(13) cm(-3)) to correlated (N-I > 8 x 10(13) cm(-3)). (C) 2001 Elsevier Science B.V. All rights reserved. C1 Keio Univ, Dept Appl Phys & Physicoinformat, Yokohama, Kanagawa 2238522, Japan. Univ Calif Berkeley, Berkeley, CA 94720 USA. Lawrence Berkeley Natl Labs, Berkeley, CA 94720 USA. RP Itoh, KM (reprint author), Keio Univ, Dept Appl Phys & Physicoinformat, 3-14-1 Hiyoshi, Yokohama, Kanagawa 2238522, Japan. RI Itoh, Kohei/C-5738-2014 NR 9 TC 2 Z9 2 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4526 J9 PHYSICA B JI Physica B PD AUG PY 2001 VL 302 BP 1 EP 6 DI 10.1016/S0921-4526(01)00398-2 PG 6 WC Physics, Condensed Matter SC Physics GA 447BU UT WOS:000169549300003 ER PT J AU Wetzel, C Amano, T Akasaki, I Ager, JW Grzegory, I Meyer, BK AF Wetzel, C Amano, T Akasaki, I Ager, JW Grzegory, I Meyer, BK TI DX-like behavior of oxygen in GaN SO PHYSICA B LA English DT Article; Proceedings Paper CT 54th Yamada Conference on Shallow-Level Centers in Semiconductors (SLCS-9) CY SEP 24-27, 2000 CL AWAJU ISL, JAPAN SP Yamada Sci Fdn DE gallium nitride; oxygen; DX-center; vibrational mode ID III-V NITRIDES; GALLIUM NITRIDE; HYDROSTATIC-PRESSURE; ALUMINUM NITRIDE; VIBRATIONAL PROPERTIES; EPITAXIAL-GROWTH; POINT-DEFECTS; DONOR; ALN; SI AB The role of oxygen as a shallow donor and a DX-state in GaN is elucidated by recent Raman experiments under hydrostatic pressure and the findings of first principles calculations. A pressure induced transfer of electrons from a shallow donor state to a deep DX-like state of the same donor can be correlated with vibrational gap modes by monitoring the freeze-out dynamics. Both features are unique to oxygen doped GaN and cannot be observed in Si doped material. The gap modes can be well explained by a linear chain model of impurity vibrations of substitutional O on the N site. A mode variation, and switching steps in its pressure behavior, which occurs in parallel to the carrier freeze-out are proposed to reflect three different charge states of the strongly localized states of O. This DX-type behavior as well as the experimental threshold pressure values are in excellent agreement with the theory results. (C) 2001 Published by Elsevier Science B.V. C1 Meijo Univ, High Tech Res Ctr, Tempaku Ku, Nagoya, Aichi 4688502, Japan. Meijo Univ, Dept Elect & Elect Engn, Tempaku Ku, Nagoya, Aichi 4688502, Japan. Lawrence Berkeley Natl Lab, Div Sci Mat, Berkeley, CA 94720 USA. Polish Acad Sci, UNIPRESS, High Pressure Res Ctr, PL-01142 Warsaw, Poland. Univ Giessen, Inst Phys, D-35392 Giessen, Germany. RP Wetzel, C (reprint author), Meijo Univ, High Tech Res Ctr, Tempaku Ku, 1-501 Shiogamaguchi, Nagoya, Aichi 4688502, Japan. RI Wetzel, Christian/O-4017-2014; OI Wetzel, Christian/0000-0002-6055-0990; Ager, Joel/0000-0001-9334-9751 NR 54 TC 8 Z9 8 U1 2 U2 14 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4526 J9 PHYSICA B JI Physica B PD AUG PY 2001 VL 302 BP 23 EP 38 DI 10.1016/S0921-4526(01)00402-1 PG 16 WC Physics, Condensed Matter SC Physics GA 447BU UT WOS:000169549300007 ER PT J AU Kim, H Ramdas, AK Rodriguez, S Barticevic, Z Grimsditch, M Anthony, TR AF Kim, H Ramdas, AK Rodriguez, S Barticevic, Z Grimsditch, M Anthony, TR TI Magnetospectroscopy of acceptors in "blue" diamonds SO PHYSICA B LA English DT Article; Proceedings Paper CT 54th Yamada Conference on Shallow-Level Centers in Semiconductors (SLCS-9) CY SEP 24-27, 2000 CL AWAJU ISL, JAPAN SP Yamada Sci Fdn DE Zeeman effect; acceptors; diamond ID SEMICONDUCTING DIAMOND; ELECTRONIC RAMAN; INFRARED-SPECTRA; SPHERICAL MODEL; STATES; BORON; SPECTROSCOPY AB Naturally occurring, nitrogen-fret, p-type diamond-now known to be boron-doped-as well as man-made diamonds deliberately doped with boron display an electronic Raman transition, Delta ' originating in the 1s(p(3/2)): Gamma (8) ground state of the acceptor and terminating in its 1s(p(1/2)) : Gamma (7) spin-orbit partner. With magnetic field B along [0 0 1], [1 1 1], or [1 1 0], the electronic Raman spectrum displays eight Zeeman transitions and four Raman lines ascribed to transitions between the Zeeman sublevels of Gamma (8) (Raman-electron-paramagnetic-resonance Raman-EPR). They exhibit polarizations expected from the polarizability tensors formulated in terms of the Luttinger perameters; gamma (1), gamma (2), and gamma (3) characterizing the top of the valence band. The selection rules and the relative intensities of the Zeeman components as well as of the Raman-EPR lines, observed in diverse polarization configurations and scattering geometrics, have led to: assignments of magnetic quantum numbers; the level ordering of the Zeeman sublevels, or equivalently, the magnitudes and signs of g(1) and g(2), the orbital and spin g-factors of the acceptor-bound hole: the extreme mass anisotropy as reflected in the ratio (gamma (2)/gamma (3)) = 0.08 +/- 001 Magnetic-field-induced mixing of zero field states, time reversal symmetry, and the diamagnetic contributions which characterize the different sublevels are fully taken into account in the interpretation of the experimental results. These include the striking mutual exclusion of the Stokes spectrum from its anti-Stokes counterpart in specific polarization configurations. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Argonne Natl Lab, Adv Photon Source, Expt Facil Div, Argonne, IL 60439 USA. Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA. Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile. Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. Gen Elect Corp Res & Dev, Schenectady, NY 12309 USA. RP Kim, H (reprint author), Argonne Natl Lab, Adv Photon Source, Expt Facil Div, 9700 S Cass Ave, Argonne, IL 60439 USA. NR 39 TC 0 Z9 0 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4526 J9 PHYSICA B JI Physica B PD AUG PY 2001 VL 302 BP 88 EP 100 DI 10.1016/S0921-4526(01)00411-2 PG 13 WC Physics, Condensed Matter SC Physics GA 447BU UT WOS:000169549300015 ER PT J AU Walukiewicz, W AF Walukiewicz, W TI Intrinsic limitations to the doping of wide-gap semiconductors SO PHYSICA B LA English DT Article; Proceedings Paper CT 54th Yamada Conference on Shallow-Level Centers in Semiconductors (SLCS-9) CY SEP 24-27, 2000 CL AWAJU ISL, JAPAN SP Yamada Sci Fdn DE compound semiconductors; native defects; doping ID MOLECULAR-BEAM EPITAXY; AMPHOTERIC NATIVE DEFECTS; VAPOR-PHASE EPITAXY; P-TYPE ZNSE; II-VI; ELECTRONIC-STRUCTURE; CRYSTAL-GROWTH; THIN-FILMS; BAND; GAAS AB Doping limits in semiconductors are discussed in terms of the amphoteric defect model (ADM). It is shown that the maximum free electron or hole concentration that can be achieved by doping is an intrinsic property of a given semiconductor and is fully determined by the location of the semiconductor band edges with respect to a common energy reference, the Fermi level stabilization energy. The ADM provides a simple phenomenological rule that explains experimentally observed trends in free carrier saturation in a variety of semiconductor materials and their alloys. The predictions of a large enhancement of the maximum electron concentration in III-N-V alloys have been recently confirmed by experiment. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Lawrence Berkeley Natl Lab, Div Sci Mat, Berkeley, CA 94720 USA. RP Walukiewicz, W (reprint author), Lawrence Berkeley Natl Lab, Div Sci Mat, MS 2-200,1 Cyclotron Rd, Berkeley, CA 94720 USA. NR 74 TC 202 Z9 203 U1 2 U2 48 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4526 J9 PHYSICA B JI Physica B PD AUG PY 2001 VL 302 BP 123 EP 134 DI 10.1016/S0921-4526(01)00417-3 PG 12 WC Physics, Condensed Matter SC Physics GA 447BU UT WOS:000169549300019 ER PT J AU Zhang, SB Wei, SH Yan, YF AF Zhang, SB Wei, SH Yan, YF TI The thermodynamics of codoping: how does it work? SO PHYSICA B LA English DT Article; Proceedings Paper CT 54th Yamada Conference on Shallow-Level Centers in Semiconductors (SLCS-9) CY SEP 24-27, 2000 CL AWAJU ISL, JAPAN SP Yamada Sci Fdn DE codoping; II-VI compounds; wide gap semiconductors ID II-VI SEMICONDUCTORS; ELECTRONIC-STRUCTURE; SOLAR-CELLS; FABRICATION; ALLOYS; GAAS; ZNO AB Using first-principle total energy calculations, we have studied the energetics of codoping [Katayama-Yoshida, Yamamoto, Phys. Stat. Sol. (b) 202 (1997) 763.] in II-VI semiconductors. We demonstrate that (i) for Cd-based II-VI materials such as CdTe, the recently proposed codoping method (e.g.. 2 accepters + 1 donor) may neither increase the solubility of the desired (p-type) dopants nor improve shallowness of the acceptor level. To increase solubility, one needs to suppress the formation of secondary phases involving the dopant by low-T quasi-equilibrium growth/doping processes. To improve the dopant shallowness, one needs to avoid the interaction between the accepters using combinations such as (1 double acceptor + 1 single donor): for example V-Cd(2-) + Cl-Te(perpendicular to). (ii) We further demonstrate that the recent experimental results on p-type ZnO [Joseph et al., Japan J. Appl. Phys. 38 (1999) LI205.] may have little to do with codoping. Instead, the data on n(+)-, p- and p(+)-samples can be consistently understood in terms of increased solubility by incorporating molecular dopants: N2O and NO. The NO doping source is present due to plasma decomposition of N2O. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Zhang, SB (reprint author), Natl Renewable Energy Lab, 1616 Cole Blvd, Golden, CO 80401 USA. RI Krausnick, Jennifer/D-6291-2013; Zhang, Shengbai/D-4885-2013 OI Zhang, Shengbai/0000-0003-0833-5860 NR 22 TC 43 Z9 49 U1 2 U2 25 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4526 J9 PHYSICA B JI Physica B PD AUG PY 2001 VL 302 BP 135 EP 139 DI 10.1016/S0921-4526(01)00418-5 PG 5 WC Physics, Condensed Matter SC Physics GA 447BU UT WOS:000169549300020 ER PT J AU Martin, I Balatsky, AV AF Martin, I Balatsky, AV TI Doping-induced inhomogeneity in high-T-c superconductors SO PHYSICA C LA English DT Article; Proceedings Paper CT 13th International Symposium on Superconductivity (ISS 2000) CY OCT 14-16, 2000 CL TOKYO, JAPAN DE cuprates; ARPES; inhomogeneity ID PHOTOEMISSION; TRANSITION AB Doping and disorder are inseparable in the superconducting cuprates. Assuming the simplest possible disordered doping, we construct a semiphenomenological model and analyze its experimental consequences. Among the affected experimental quantities are the ARPES spectra and thermodynamic properties. From our model we make a prediction for the width of the local superconducting gap distribution with the only experimentally unknown parameter being the superconducting correlation length. Thus, our model provides a direct way of determining the superconducting correlation length. Thus, our model provides a direct way of determining the superconducting correlation length from a known experimental gap distribution. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Balatsky, AV (reprint author), Los Alamos Natl Lab, Div Theoret, POB 1663, Los Alamos, NM 87545 USA. NR 6 TC 33 Z9 33 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4534 J9 PHYSICA C JI Physica C PD AUG PY 2001 VL 357 BP 46 EP 48 DI 10.1016/S0921-4534(01)00192-7 PN 1 PG 3 WC Physics, Applied SC Physics GA 463FX UT WOS:000170467400011 ER PT J AU Miyakawa, N Zasadzinski, JF Asano, M Henmi, D Oonuki, S Sasaki, K Kaneko, T Ozyuzer, L Gray, KE AF Miyakawa, N Zasadzinski, JF Asano, M Henmi, D Oonuki, S Sasaki, K Kaneko, T Ozyuzer, L Gray, KE TI Universal features of tunneling conductance on high-T-c cuprates SO PHYSICA C LA English DT Article; Proceedings Paper CT 13th International Symposium on Superconductivity (ISS 2000) CY OCT 14-16, 2000 CL TOKYO, JAPAN DE tunneling; doping dependence; superconducting gap; HTSC ID SUPERCONDUCTING GAP; OVERDOPED BI2SR2CACU2O8+DELTA; SPECTROSCOPY; PSEUDOGAP AB We present tunneling spectra measured at 4.2 K on several high-T-c cuprates including Bi2+ySr2-(x+y)LaCuO6+delta (Bi2201), Tl2Ba2CuOy, Bi2Sr2CaCu2O8+delta (Bi2212) single crystals, as well as (Cu,C)Ba2Cu3Cu4O12+delta polycrystals, using SIN point contact method. All of high quality tunneling conductances on these samples exhibit not only a well-defined superconducting gap peak at triangle but also the high energy features known as dip (hump) at roughly similar to2 triangle (similar to3 triangle). In addition. it is demonstrated that analogous to Bi2212, the superconducting gap in Bi2201 monotonically increases with decreasing hole concentration. It is concluded that the dip and hump features as well as the doping dependence of energy gap are generic to high temperature superconductors. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Sci Univ Tokyo, Dept Appl Phys, Shinjuku Ku, Tokyo 1628601, Japan. Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. IIT, Dept Phys, Chicago, IL 60616 USA. RP Miyakawa, N (reprint author), Sci Univ Tokyo, Dept Appl Phys, Shinjuku Ku, 1-3 Kagurazaka, Tokyo 1628601, Japan. RI Ozyuzer, Lutfi/H-3142-2011 NR 12 TC 13 Z9 13 U1 1 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4534 J9 PHYSICA C JI Physica C PD AUG PY 2001 VL 357 BP 126 EP 129 DI 10.1016/S0921-4534(01)00181-2 PN 1 PG 4 WC Physics, Applied SC Physics GA 463FX UT WOS:000170467400028 ER PT J AU Ono, S Ando, Y Murayama, T Balakirev, FF Betts, JB Boebinger, GS AF Ono, S Ando, Y Murayama, T Balakirev, FF Betts, JB Boebinger, GS TI Low-temperature normal state of Bi2Sr2-xLaxCuO6+delta: comparison with La2-xSrxCuO4 SO PHYSICA C LA English DT Article; Proceedings Paper CT 13th International Symposium on Superconductivity (ISS 2000) CY OCT 14-16, 2000 CL TOKYO, JAPAN DE normal state; resistivity; Bi-2201; La-2-xSrxCuO4 ID METAL CROSSOVER AB We measure the in-plane normal-state resistivity rho (ab) of Bi2Sr2-xLaxCuO6+delta single crystals down to 0.5 K with 60 T pulsed magnetic fields. We observe a metallic behavior gradually changes to an insulating one with decreasing carrier concentration and this metal-to-insulator crossover takes place in the underdoped region at approximately 1/8 hole concentration. not at the optimum doping as is reported for La2-xSrxCuO4. We discuss a possible source of difference between the two systems. (C) 2001 Elsevier Science B.V. All rights reserved. C1 CRIEPI, Komae, Tokyo 2018511, Japan. Sci Univ Tokyo, Dept Phys, Shinjuku Ku, Tokyo 1628601, Japan. Los Alamos Natl Lab, NHMFL, Los Alamos, NM 87545 USA. RP Ono, S (reprint author), CRIEPI, Komae, Tokyo 2018511, Japan. RI Ando, Yoichi/B-8163-2013 OI Ando, Yoichi/0000-0002-3553-3355 NR 6 TC 7 Z9 7 U1 0 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4534 J9 PHYSICA C JI Physica C PD AUG PY 2001 VL 357 BP 138 EP 141 DI 10.1016/S0921-4534(01)00187-3 PN 1 PG 4 WC Physics, Applied SC Physics GA 463FX UT WOS:000170467400031 ER PT J AU Bulaevskii, LN Koshelev, AE Rosenstein, B Maley, MP AF Bulaevskii, LN Koshelev, AE Rosenstein, B Maley, MP TI Quantum regime of Cooper pair tunneling in small-area Bi2Sr2CaCu2O8+delta mesas in magnetic fields SO PHYSICA C LA English DT Article; Proceedings Paper CT 13th International Symposium on Superconductivity (ISS 2000) CY OCT 14-16, 2000 CL TOKYO, JAPAN DE Cooper pair tunneling; Josephson junctions; critical current ID COUPLED LAYERED SUPERCONDUCTORS; PLASMA AB We show that application of an c-axis magnetic field decreases the effective interlayer Josephson coupling in small-area Bi2Sr2CaCu2O8+delta (Bi-2212) mesas at low temperatures. As magnetic field increases, the crossover from the classical regime of Cooper pair tunneling to the quantum regime leads to an additional drastic suppression of the Josephson coupling due to the Coulomb blockade. As result, the stack of many intrinsic junctions is nonsuperconducting at high fields. The quantum regime of superconducting tunneling may be reached in mesas with N junctions and area 0.3 mum(2) made of intercalated Bi-2212 crystals by applying c-axis magnetic fields B > 4/N-2 T at N much greater than 1. (C) 2001 Published by Elsevier Science B.V. C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. Natl Chiao Tung Univ, Dept Electrophys, Hsinchu, Taiwan. Natl Chiao Tung Univ, Natl Ctr Theoret Studies, Hsinchu, Taiwan. RP Bulaevskii, LN (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. RI Koshelev, Alexei/K-3971-2013 OI Koshelev, Alexei/0000-0002-1167-5906 NR 14 TC 4 Z9 4 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4534 J9 PHYSICA C JI Physica C PD AUG PY 2001 VL 357 BP 418 EP 421 DI 10.1016/S0921-4534(01)00264-7 PN 1 PG 4 WC Physics, Applied SC Physics GA 463FX UT WOS:000170467400100 ER PT J AU Itaka, K Yasugaki, M Shibauchi, T Tamegai, T Okayasu, S AF Itaka, K Yasugaki, M Shibauchi, T Tamegai, T Okayasu, S TI Reduction of interlayer coherence around 1/3 of matching field in Bose glass phase of YBa2Cu3O7-delta with columnar defects SO PHYSICA C LA English DT Article; Proceedings Paper CT 13th International Symposium on Superconductivity (ISS 2000) CY OCT 14-16, 2000 CL TOKYO, JAPAN DE vortex; magneto-optical; YBa2Cu3O7-delta; columnar defects ID COUPLING TRANSITION; VORTEX LIQUID; BI2SR2CACU2O8+DELTA AB Magneto-optical imaging in YBa2Cu3O7-delta with columnar defects (CDs) shows an asymmetric critical-state field profile., which is related to the misalignment between the applied field and the CDs. This asymmetric profile is explained by the in-plane magnetization originated from vortex alignment along the CDs. This phenomenon is utilized as a powerful probe for the interlayer coherence. The extracted ratio of the in-plane to the out-of-plane magnetization component disappears at around B-phi/3, where B-phi is the dose equivalent matching field. Moreover, the maximum enhancement of the irreversible magnetization occurs at around B-phi/3 which is independent of temperature, These results suggest a reduction of interlayer coherence well bellow B-phi in the Bose glass phase, and are consistent with the prediction of the simulation study. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Tokyo Inst Technol, Ceram Mat & Struct Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan. Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan. Los Alamos Natl Lab, MST STC, Los Alamos, NM 87545 USA. IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA. JAERI, Tokai, Ibaraki 3191195, Japan. RP Itaka, K (reprint author), Tokyo Inst Technol, Ceram Mat & Struct Lab, Midori Ku, 4259 Nagatsuta, Yokohama, Kanagawa 2268503, Japan. RI Shibauchi, Takasada/B-9349-2008; Tamegai, Tsuyoshi /C-6656-2011; Itaka, Kenji/B-3207-2008 OI Shibauchi, Takasada/0000-0001-5831-4924; NR 10 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4534 J9 PHYSICA C JI Physica C PD AUG PY 2001 VL 357 BP 435 EP 437 DI 10.1016/S0921-4534(01)00268-4 PN 1 PG 3 WC Physics, Applied SC Physics GA 463FX UT WOS:000170467400104 ER PT J AU Goyal, A Lee, DF List, FA Specht, ED Feenstra, R Paranthaman, M Cui, X Lu, SW Martin, PM Kroeger, DM Christen, DK Kang, BW Norton, DP Park, C Verebelyi, DT Thompson, JR Williams, RK Aytug, T Cantoni, C AF Goyal, A Lee, DF List, FA Specht, ED Feenstra, R Paranthaman, M Cui, X Lu, SW Martin, PM Kroeger, DM Christen, DK Kang, BW Norton, DP Park, C Verebelyi, DT Thompson, JR Williams, RK Aytug, T Cantoni, C TI Recent progress in the fabrication of high-J(c) tapes by epitaxial deposition of YBCO on RABiTS SO PHYSICA C LA English DT Article; Proceedings Paper CT 13th International Symposium on Superconductivity (ISS 2000) CY OCT 14-16, 2000 CL TOKYO, JAPAN ID ELECTRON-BEAM EVAPORATION; TEMPERATURE SUPERCONDUCTING WIRE; BUFFER LAYERS; TEXTURED NI; FILMS; CONDUCTORS; GROWTH AB Progress made in the fabrication of rolling assisted biaxially textured substrates (RABiTS) and epitaxial deposition or formation of HTS on such substrates is reported. Significant progress has been made in understanding the role of meso-scale defects such as grain boundaries on long-range current flow of HTS conductors made using the RABiTS approach. Both experimental and theoretical calculations suggest that in well-textured samples these commonly present defects do not provide an intrinsic barrier to current flow in long-length conductors. Significant progress has also been made in the reel-to-reel deposition of oxide buffer layers and in the fabrication of long-length superconductors using the ex situ BaF, technique. Finally, non-magnetic, mechanically strengthened, biaxially textured metal templates have been fabricated with high quality oxide buffer layers. Epitaxial formation of YBCO on such substrates yields critical current densities over 1 MA/cm(2) at 77 K, 0 T. Published by Elsevier Science B.V. C1 Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA. Amer Superconductor Corp, Westborough, MA 01581 USA. Informat Prod Inc, Holland, MI 49423 USA. Univ Florida, Gainesville, FL 32611 USA. IGC Super Power, Schenectady, NY 12304 USA. RP Goyal, A (reprint author), Oak Ridge Natl Lab, Div Met & Ceram, POB 2008,MS 6116, Oak Ridge, TN 37831 USA. RI Christen, David/A-9709-2008; Yoon, Sejin/F-7637-2013; Specht, Eliot/A-5654-2009; Paranthaman, Mariappan/N-3866-2015; Cantoni, Claudia/G-3031-2013 OI Specht, Eliot/0000-0002-3191-2163; Paranthaman, Mariappan/0000-0003-3009-8531; Cantoni, Claudia/0000-0002-9731-2021 NR 19 TC 90 Z9 99 U1 2 U2 13 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4534 J9 PHYSICA C JI Physica C PD AUG PY 2001 VL 357 BP 903 EP 913 DI 10.1016/S0921-4534(01)00437-3 PN 2 PG 11 WC Physics, Applied SC Physics GA 463FY UT WOS:000170467500001 ER PT J AU Kung, H Hirth, JP Foltyn, SR Arendt, PN Jia, QX Maley, MP AF Kung, H Hirth, JP Foltyn, SR Arendt, PN Jia, QX Maley, MP TI A comparison of [001] low-angle tilt grain boundaries of (100) and (110) grain boundary planes in YBa2Cu3O7-delta coated conductors SO PHYSICA C LA English DT Article; Proceedings Paper CT 13th International Symposium on Superconductivity (ISS 2000) CY OCT 14-16, 2000 CL TOKYO, JAPAN DE grain boundary; YBCO; coated conductor ID DISLOCATION NETWORK STRUCTURE; CRITICAL CURRENTS; THICK-FILMS; BICRYSTALS; DEPOSITION; TAPES AB The microstructure and grain boundary structure in YBa2Cu3O7-delta (YBCO) thick film coated conductors are characterized by transmission electron microscopy. The films contain low-angle [001] tilt grain boundaries with periodic arrays of edge dislocations parallel to the c-axis. A majority of the grain boundary planes are of either the (100) or the (110) type. Grain boundary dislocations (GBDs) with a [100] Burgers vector were observed in tilt boundaries with (100) boundary planes. However, partial dislocations, separated by stacking faults, were found at boundaries with near (110) grain boundary planes. Extensive g . b and g . R analyses confirmed the partials to be of 1/2[110] type. These results suggest that the characteristics of dislocation structures, which have been proposed in various grain boundary-based flux-pinning models, depend not only on the misorientation angle theta, but also on the types of grain boundary plane. The effect of dissociated GBDs on the transport properties of low angle grain boundaries in YBCO coated conductors is discussed. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Los Alamos Natl Lab, Superconduct Technol Ctr, Mat Sci & Technol Div, Los Alamos, NM 87545 USA. RP Kung, H (reprint author), Los Alamos Natl Lab, Superconduct Technol Ctr, Mat Sci & Technol Div, Mail Stop G755, Los Alamos, NM 87545 USA. RI Jia, Q. X./C-5194-2008 NR 17 TC 2 Z9 2 U1 1 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4534 J9 PHYSICA C JI Physica C PD AUG PY 2001 VL 357 BP 959 EP 966 DI 10.1016/S0921-4534(01)00451-8 PN 2 PG 8 WC Physics, Applied SC Physics GA 463FY UT WOS:000170467500010 ER PT J AU Li, Q Zhang, W Schoop, U Rupich, MW Annavarapu, S Verebelyi, DT Thieme, CLH Prunier, V Cui, X Teplitsky, MD Fritzemeier, LG Riley, GN Paranthaman, M Goyal, A Lee, DF Holesinger, TG AF Li, Q Zhang, W Schoop, U Rupich, MW Annavarapu, S Verebelyi, DT Thieme, CLH Prunier, V Cui, X Teplitsky, MD Fritzemeier, LG Riley, GN Paranthaman, M Goyal, A Lee, DF Holesinger, TG TI Progress in solution-based YBCO coated conductor SO PHYSICA C LA English DT Article; Proceedings Paper CT 13th International Symposium on Superconductivity (ISS 2000) CY OCT 14-16, 2000 CL TOKYO, JAPAN DE solution based; YBCO; epitaxial; a-axis growth AB Solution-based YBCO and buffer layers on deformation-textured Ni or Ni-based alloys have been developed as a low-cost coated conductor technology for high temperature superconducting wire. For short samples, J(c) values of up to 2.1 MA/cm(2) for 0.4 mum films were measured at 77 K, self-field. Using CeO2 buffered YSZ single crystals, J(c) values of up to 5 MA/cm(2) for 0.4 mum films and 2.5 MA/cm(2) for 1.2 mum films can be obtained by such a solution-based YBCO process. Differences in the J(c) performance of different metal substrate samples are possibly related to a-axial grain growth. (C) 2001 Published by Elsevier Science B.V. C1 Amer Supercond Corp, Westborough, MA 01581 USA. Elect France, R&D, CIMA, Les Renardieres, France. Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Li, Q (reprint author), Amer Supercond Corp, 2 Technol Dr, Westborough, MA 01581 USA. RI Paranthaman, Mariappan/N-3866-2015 OI Paranthaman, Mariappan/0000-0003-3009-8531 NR 7 TC 22 Z9 23 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4534 J9 PHYSICA C JI Physica C PD AUG PY 2001 VL 357 BP 987 EP 990 DI 10.1016/S0921-4534(01)00466-X PN 2 PG 4 WC Physics, Applied SC Physics GA 463FY UT WOS:000170467500016 ER PT J AU Suenaga, M Ashworth, SP AF Suenaga, M Ashworth, SP TI Angular dependence of ac losses in stacked Bi2Sr2Ca2Cu3O10/Ag tapes SO PHYSICA C LA English DT Article; Proceedings Paper CT 13th International Symposium on Superconductivity (ISS 2000) CY OCT 14-16, 2000 CL TOKYO, JAPAN DE ac losses; Bi2223/Ag tapes; angular dependence AB The angular dependence of the losses in ac applied fields were measured using stacked Bi(2223)/Ag tapes having the angles with the direction of applied fields of 0, 7.5, 15, 30, 45, 60, and 90 degrees. The measured values of the losses were compared with the calculated values. The calculations were performed assuming that the losses were a sum of those for the currents circulating in the plane of and across the tapes. At high fields, a good agreement between the measured and the calculated losses were observed while at the low fields, the calculated did not account for the variation. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Brookhaven Natl Lab, Div Mat & Chem Sci, Upton, NY 11973 USA. RP Suenaga, M (reprint author), Brookhaven Natl Lab, Div Mat & Chem Sci, POB 5000,Bldg 480, Upton, NY 11973 USA. NR 5 TC 9 Z9 9 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4534 J9 PHYSICA C JI Physica C PD AUG PY 2001 VL 357 BP 1178 EP 1181 DI 10.1016/S0921-4534(01)00476-2 PN 2 PG 4 WC Physics, Applied SC Physics GA 463FY UT WOS:000170467500055 ER PT J AU Zhu, Y Wu, L Volkov, V Li, Q Gu, G Moodenbaugh, AR Malac, M Suenaga, M Tranquada, J AF Zhu, Y Wu, L Volkov, V Li, Q Gu, G Moodenbaugh, AR Malac, M Suenaga, M Tranquada, J TI Microstructure and structural defects in MgB2 superconductor SO PHYSICA C LA English DT Article DE MgB2; microstructure; defects; crystal structure ID GRAIN-BOUNDARIES; YBA2CU3O7-DELTA AB We report a detailed study of the microstructure and defects in sintered polycrystalline magnesium diboride (MgB2). Both transmission electron microscopy and X-ray data reveal that MgO is the major second-phase in our bulk samples. Although MgB2 and MgO have different crystal symmetries, being P6/mmm and Fm-3m, respectively, their stacking sequence of Mg and B (or O) and lattice spacings in certain crystallographic orientations are very similar. The size of MgO varies from 10-500 nm, and its mismatch with the MgB2 matrix can be a source for dislocations. Dislocations in MgB2 often have a Burgers vector of < 100 >. 1/3 <1-10 > and 1/3 < 210 > partial dislocations and their associated stacking faults were also observed. Since both dislocations and stacking faults are located in the (001) basal plane, flux pinning anisotropy is expected. Diffuse scattering analysis suggests that the correlation length along the c-axis for defect-free basal planes is about 50 nm. (001) twist grain boundaries (GBs), formed by rotations along the c-axis, are major grain boundaries in MgB2 as a result of the out-of-plane weak bonding between Mg and B atoms. An excess of Mg was observed in some grain boundaries. High-resolution nano-probe electron-energy loss spectroscopy reveals that there is a difference in near edge structure of the boron K-edge acquired from GBs and grain interiors. The change at the edge threshold may be suggestive of variation of the hole concentration that would significantly alter boundary superconductivity. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Brookhaven Natl Lab, Dept Appl Sci, Div Mat Sci, Upton, NY 11973 USA. Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Zhu, Y (reprint author), Brookhaven Natl Lab, Dept Appl Sci, Div Mat Sci, Bldg 480, Upton, NY 11973 USA. RI Tranquada, John/A-9832-2009; Volkov, Vyacheslav/D-9786-2016; OI Tranquada, John/0000-0003-4984-8857; Moodenbaugh, Arnold/0000-0002-3415-6762 NR 22 TC 87 Z9 87 U1 4 U2 28 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4534 J9 PHYSICA C JI Physica C PD AUG 1 PY 2001 VL 356 IS 4 BP 239 EP 253 DI 10.1016/S0921-4534(01)00700-6 PG 15 WC Physics, Applied SC Physics GA 469ZH UT WOS:000170845600001 ER PT J AU Jee, YA Li, M Ma, B Maroni, VA Fisher, BL Balachandran, U AF Jee, YA Li, M Ma, B Maroni, VA Fisher, BL Balachandran, U TI Comparison of texture development and superconducting properties of YBCO thin films prepared by TFA and PLD processes SO PHYSICA C LA English DT Article DE coated conductor; YBa2Cu3Ox thin film; trifluoroacetate; pulsed laser deposition ID CRITICAL-CURRENT DENSITY; COATED CONDUCTORS; BUFFER LAYERS; DEPOSITION; FABRICATION; SRTIO3 AB Although pulsed laser deposition (PLD) is one of the most reliable techniques for fabricating YBa2Cu3Ox (YBCO) thin films with high critical current density (J(c)), metal organic decomposition (MOD), including the trifluoroacetate (TFA) process, is attracting more interest because of its potential for scale-up and cost-effectiveness. In general, PLD samples have higher J(c) values than those of TFA samples. In this study, we deposited YBCO films on LaAlO3 single-crystal substrates by TFA and PLD, respectively. Performance of the two samples was compared to investigate possible causes that lead to the different J(c) values. In-plane and out-of-plane texture was evaluated quantitatively by phi and omega scan, respectively. The FWHMs of phi and omega scans for the TFA sample were comparable to those of the PLD sample, indicating that TFA films follow the substrate texture precisely. Raman spectra were measured to estimate grain connectivity, texture, and second-phase formation. The properties of the samples are almost identical, except for the intensity of the BaCuO2 Raman peaks. Microstructure observation by SEM showed that TFA films were generally more porous and smaller-grained than PLD samples. Considering these results, the difference in J(c) values between TFA and PLD samples (1.3 and 3 MA/cm(2), respectively) in this experiment is partly attributed to the more porous microstructure of the TFA samples. (C) 2001 Elsevier Science B.V. All rights reserved. C1 Argonne Natl Lab, Div Energy Technol, Argonne, IL 60439 USA. Argonne Natl Lab, Div Chem Technol, Argonne, IL 60439 USA. RP Jee, YA (reprint author), Argonne Natl Lab, Div Energy Technol, 9700 S Cass Ave,Bldg 212,G225, Argonne, IL 60439 USA. RI Ma, Beihai/I-1674-2013 OI Ma, Beihai/0000-0003-3557-2773 NR 22 TC 16 Z9 17 U1 1 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4534 J9 PHYSICA C JI Physica C PD AUG 1 PY 2001 VL 356 IS 4 BP 297 EP 303 DI 10.1016/S0921-4534(01)00281-7 PG 7 WC Physics, Applied SC Physics GA 469ZH UT WOS:000170845600007 ER PT J AU Baltz, AJ AF Baltz, AJ TI Some exact analytical results and a semiempirical formula for single electron ionization induced by ultrarelativistic heavy ions SO PHYSICAL REVIEW A LA English DT Article ID DIRAC-EQUATION CALCULATION; COLLISIONS AB The delta function gauge of the electromagnetic potential allows semiclassical formulas to be obtained for the probability of exciting a single electron out of the ground state in an ultrarelativistic heavy-ion reaction. Exact formulas have been obtained in the limits of zero impact parameter and large, perturbative, impact parameter. The perturbative impact parameter result can be exploited to obtain a semiempirical cross section formula of the form sigma =A ln gamma +B for single-electron ionization. A and B can be evaluated for any combination of target and projectile, and the resulting simple formula is good at all ultrarelativistic energies. The analytical form of A and B elucidates a result previously found in numerical calculations: scaled ionization cross sections decrease with increasing charge of the nucleus being ionized. The cross section values obtained from the present formula are in good agreement with recent CERN SPS data from a Pb beam on various nuclear targets. C1 Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Baltz, AJ (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. NR 9 TC 4 Z9 4 U1 0 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD AUG PY 2001 VL 64 IS 2 BP art. no. EP 022718 DI 10.1103/PhysRevA.64.022718 PG 5 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 460FJ UT WOS:000170297300063 ER PT J AU Bohmer, K Halfmann, T Yatsenko, LP Shore, BW Bergmann, K AF Bohmer, K Halfmann, T Yatsenko, LP Shore, BW Bergmann, K TI Stimulated hyper-raman adiabatic passage. III. Experiment SO PHYSICAL REVIEW A LA English DT Article ID COHERENT POPULATION TRANSFER; PULSED LASERS; MOLECULES; SHIFTS; ATOMS AB We report the experimental realization of coherent population transfer from the 2 S-3 state to 2 P-3 finestructure levels of helium, using the technique of hyper-Raman adiabatic passage, in which the pump-laser coupling involves a two-photon transition. We discuss the dependence of population transfer upon pump and Stokes detunings, and show that by suitably setting the detunings one can transfer population efficiently as either a two-step process to final states or as a single-step two-photon transition to an intermediate state. We use an adiabatic-state picture to interpret these experimental results. Since the optimum detuning depends on the pump laser intensity the transfer efficiency is compromised by the variation of the intensity across the spatial profile of the laser beam. Our experimental data agree well with numerical simulation based on density-matrix equations, including all 15 magnetic sublevels. C1 Ukrainian Acad Sci, Inst Phys, UA-252650 Kiev, Ukraine. Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Bohmer, K (reprint author), Univ Kaiserslautern, Fachbereich Phys, D-67623 Kaiserslautern, Germany. RI Halfmann, Thomas/O-4588-2014; BERGMANN, KLAAS/D-5543-2011 OI Halfmann, Thomas/0000-0002-1222-2669; NR 13 TC 19 Z9 19 U1 0 U2 3 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD AUG PY 2001 VL 64 IS 2 BP art. no. EP 023404 DI 10.1103/PhysRevA.64.023404 PG 11 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 460FJ UT WOS:000170297300075 ER PT J AU Hathorn, BC Sumpter, BG Noid, DW AF Hathorn, BC Sumpter, BG Noid, DW TI Contribution of restricted rotors to quantum sieving of hydrogen isotopes SO PHYSICAL REVIEW A LA English DT Article ID WALLED CARBON NANOTUBES; STORAGE; ENERGY AB The rotational eigenvalues of isotopically substituted hydrogen molecules adsorbed into single-walled carbon nanotubes are calculated using a semiclassical method and using a model potential. The resulting eigenvalues are used to calculate the separation factors due to rotational confinement between different isotopic species as a function of temperature and nanotube size. The results show that even for small shifts in the eigenvalues, significant fractionations should occur, suggesting possible application as an isotope-separation technique. C1 Oak Ridge Natl Lab, Div Math & Comp Sci, Oak Ridge, TN 37831 USA. Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA. RP Hathorn, BC (reprint author), Oak Ridge Natl Lab, Div Math & Comp Sci, Oak Ridge, TN 37831 USA. RI Sumpter, Bobby/C-9459-2013 OI Sumpter, Bobby/0000-0001-6341-0355 NR 30 TC 33 Z9 33 U1 0 U2 6 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD AUG PY 2001 VL 64 IS 2 BP art. no. EP 022903 DI 10.1103/PhysRevA.64.022903 PG 7 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 460FJ UT WOS:000170297300067 ER PT J AU Junkel-Vives, GC Abdallah, J Blasco, F Stenz, C Salin, F Faenov, AY Magunov, AI Pikuz, TA Skobelev, IY AF Junkel-Vives, GC Abdallah, J Blasco, F Stenz, C Salin, F Faenov, AY Magunov, AI Pikuz, TA Skobelev, IY TI Observation of H-like ions within argon clusters irradiated by 35-fs laser via high-resolution x-ray spectroscopy SO PHYSICAL REVIEW A LA English DT Article ID ATOMIC CLUSTERS; DEUTERIUM CLUSTERS; NUCLEAR-FUSION; PLASMA; PULSE; EXPLOSIONS; IONIZATION; EMISSION AB Plasmas have been created with bulk temperatures greater than or equal to 400 eV and densities greater than 1 x 10(21) cm(-3) in some regions by irradiating atomic clusters of argon with a 0.4 TW ultrashort (35 fs) laser pulse. An improved nozzle has been designed so that larger clusters can be formed, allowing the clusters to maintain high-density cores after the preplasma is formed due to the laser prepulse. Ar is the element with the highest atomic number, Z for which the Lyman-alpha resonance line (Ly(alpha)) has been observed in ultrashort (< 100 fs) pulse laser experiments for any target. The unambiguous spectroscopic evidence, including high-resolution measurements of the Ar+17 Ly() spectrum, is consistent with a theoretical two-temperature collisional-radiative model of irradiated atomic clusters incorporating the effects of highly energetic electrons (similar to5 keV). C1 Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. Univ Bordeaux 1, CNRS, CELIA, F-33405 Talence, France. VNIIFTRI, Multicharged Ions Spectra Data Ctr, Mendeleyevsk 141570, Moscow Region, Russia. RP Junkel-Vives, GC (reprint author), Los Alamos Natl Lab, Div Theoret, T-4,POB 1663, Los Alamos, NM 87545 USA. NR 25 TC 35 Z9 38 U1 0 U2 2 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD AUG PY 2001 VL 64 IS 2 BP art. no. EP 021201 DI 10.1103/PhysRevA.64.021201 PG 4 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 460FJ UT WOS:000170297300003 ER PT J AU Nayandin, O Gorczyca, TW Wills, AA Langer, B Bozek, JD Berrah, N AF Nayandin, O Gorczyca, TW Wills, AA Langer, B Bozek, JD Berrah, N TI Interference effects in the Auger decay of the Ar 2p(-1)3d resonances SO PHYSICAL REVIEW A LA English DT Article ID CROSS-SECTIONS; STATES; ATOMS; ARGON; PHOTOIONIZATION; SPECTROSCOPY; NEIGHBORHOOD; BEHAVIOR; KRYPTON AB Using two-dimensional photoelectron spectroscopy, relative partial photoionization cross sections of all accessible Auger decay channels have been measured in the vicinity of the Ar 2p(-1)3d resonances. Significant asymmetric resonance profiles are observed, which mirror each other in their asymmetric features, giving symmetric Lorentzian profiles for the total photoionization cross section. This indicates that interference between direct photoionization and resonant photoexcitation autoionization needs to be taken into account in order to accurately describe partial photoionization cross sections, despite the absence of asymmetric features in the total cross section. C1 Western Michigan Univ, Dept Phys, Kalamazoo, MI 49008 USA. Max Born Inst Nichtlineare Opt & Kurzzeitspektros, D-12489 Berlin, Germany. Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. RP Nayandin, O (reprint author), Western Michigan Univ, Dept Phys, Kalamazoo, MI 49008 USA. RI Bozek, John/E-4689-2010; Langer, Burkhard/A-6504-2013; Bozek, John/E-9260-2010 OI Bozek, John/0000-0001-7486-7238 NR 20 TC 12 Z9 12 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD AUG PY 2001 VL 64 IS 2 BP art. no. EP 022505 DI 10.1103/PhysRevA.64.022505 PG 7 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 460FJ UT WOS:000170297300042 ER PT J AU Baertschy, M Rescigno, TN McCurdy, CW AF Baertschy, M Rescigno, TN McCurdy, CW TI Accurate amplitudes for electron-impact ionization SO PHYSICAL REVIEW A LA English DT Article ID NEAR-THRESHOLD; ASYMPTOTIC FORM; CROSS-SECTIONS; E,2E; BREAKUP AB We show that the "two-potential" formalism of conventional distorted-wave rearrangement theory, which is formally valid only for short-range interactions, can be used to evaluate amplitudes for the ionization of atomic hydrogen by electron impact. The triply differential cross sections calculated using this method validate earlier results obtained by extrapolating the quantum mechanical flux. Although it uses the same time-independent wave functions, this method offers significant advantages over flux extrapolation. It is more accurate, can be applied in practical calculations over a broader range of collision energies, and unlike the flux-extrapolation method, can be applied for arbitrary values of energy sharing between the ejected electrons. Since this rearrangement formalism provides the complete scattering amplitude for ionization, it can be used to calculate any differential cross section. C1 Univ Colorado, JILA, Boulder, CO 80309 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. Lawrence Livermore Natl Lab, Phys Directorate, Livermore, CA 94551 USA. Univ Calif Davis, Dept Appl Sci, Livermore, CA 94551 USA. RP Univ Colorado, JILA, UCB 440, Boulder, CO 80309 USA. NR 23 TC 100 Z9 102 U1 1 U2 3 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9926 EI 2469-9934 J9 PHYS REV A JI Phys. Rev. A PD AUG PY 2001 VL 64 IS 2 AR 022709 DI 10.1103/PhysRevA.64.022709 PG 11 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 460FJ UT WOS:000170297300054 ER PT J AU Deng, L Payne, MG Garrett, WR AF Deng, L Payne, MG Garrett, WR TI Electromagnetically-induced-transparency-enhanced Kerr nonlinearity: Beyond steady-state treatment SO PHYSICAL REVIEW A LA English DT Article ID FREQUENCY-CONVERSION; ATOMIC COHERENCE; GENERATION; MEDIA AB A time-dependent perturbation calculation for a four-level system is presented. A resonantly enhanced Kerr nonlinearity is produced with a combination of long, short, and delayed laser pulses in the presence of electromagnetically induced transparency. We show the enhanced Kerr nonlinearity and vanishingly small linear susceptibility due to the induced transparency, both are favorable for cross-phase modulation. In addition, we show that possible constructive and destructive interference between different excitation pathways could also lead to enhancement and suppression of the Kerr nonlinearity. C1 NIST, Div Electron & Opt Phys, Gaithersburg, MD 20899 USA. Georgia So Univ, Dept Phys, Statesboro, GA 30460 USA. Univ Tennessee, Dept Phys, Knoxville, TN 37996 USA. Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP NIST, Div Electron & Opt Phys, Gaithersburg, MD 20899 USA. RI Deng, Lu/B-3997-2012 NR 18 TC 12 Z9 12 U1 0 U2 5 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9926 EI 2469-9934 J9 PHYS REV A JI Phys. Rev. A PD AUG PY 2001 VL 64 IS 2 AR 023807 PG 8 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 460FJ UT WOS:000170297300108 ER PT J AU Hemmers, O Manson, ST Sant'Anna, MM Focke, P Wang, H Sellin, IA Lindle, DW AF Hemmers, O Manson, ST Sant'Anna, MM Focke, P Wang, H Sellin, IA Lindle, DW TI Relativistic effects on interchannel coupling in atomic photoionization: The photoelectron angular distribution of Xe 5s SO PHYSICAL REVIEW A LA English DT Article ID RANDOM-PHASE-APPROXIMATION; SUBSHELLS AB Measurements of the photoelectron angular-distribution asymmetry parameter beta for Xe 5s photoionization have been performed in the 80-200 eV photon-energy region. The results show a substantial deviation from the nonrelativistic value of beta = 2 and provide a clear signature of significant relativistic effects in interchannel coupling. C1 Univ Nevada, Dept Chem, Las Vegas, NV 89154 USA. Georgia State Univ, Dept Phys & Astron, Atlanta, GA 30303 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. Ctr Atom Bariloche, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina. Lund Univ, Max Lab, S-22100 Lund, Sweden. Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. RP Hemmers, O (reprint author), Univ Nevada, Dept Chem, Las Vegas, NV 89154 USA. RI Sant'Anna, Marcelo/B-9355-2013 OI Sant'Anna, Marcelo/0000-0001-5342-5799 NR 25 TC 13 Z9 13 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD AUG PY 2001 VL 64 IS 2 AR 022507 DI 10.1103/PhysRevA.64.022507 PG 3 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 460FJ UT WOS:000170297300044 ER PT J AU Puzder, A Chou, MY Hood, RQ AF Puzder, A Chou, MY Hood, RQ TI Exchange and correlation in the Si atom: A quantum Monte Carlo study SO PHYSICAL REVIEW A LA English DT Article ID GENERALIZED GRADIENT APPROXIMATION; WEIGHTED-DENSITY-APPROXIMATION; INHOMOGENEOUS ELECTRON-GAS; WAVE-FUNCTIONS; GROUND-STATE; CORRELATION-ENERGY; ASYMPTOTIC-BEHAVIOR; KINETIC-ENERGY; SYSTEMS; ENSEMBLES AB We have studied the pair-correlation function, the exchange-correlation hole, and the exchange-correlation energy density of the valence electrons in the Si atom using the Coulomb-coupling constant integration technique with the variational quantum Monte Carlo method. These quantities are compared to those derived from various approximate models within the Kohn-Sham density functional theory. We find that the charge density prefactor in the expression for the exchange-correlation hole dominates the errors found in the local spin density approximation (LSDA), that the generalized gradient approximation improves energy calculations by improving the LSDA at long ranges, and that the weighted spin density approximation, which uses the correct charge density prefactor, gives the lowest root mean square error for the exchange-correlation energy density. C1 Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA. Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA. RI Chou, Mei-Yin/D-3898-2012 NR 58 TC 10 Z9 10 U1 0 U2 3 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 EI 1094-1622 J9 PHYS REV A JI Phys. Rev. A PD AUG PY 2001 VL 64 IS 2 AR 022501 DI 10.1103/PhysRevA.64.022501 PG 16 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 460FJ UT WOS:000170297300038 ER EF