TY - JOUR T1 - Metal concentrations, foraging distances, and fledging success of great blue herons nesting along the Hanford Reach of the Columbia River. AN - 67893095; 15931979 AB - An ecological risk assessment of the spatial distribution of metal concentrations along the Hanford Reach of the free-flowing Columbia River in southcentral Washington, identified great blue herons, Ardea herodias, at potential risk through the ingestion of contaminated riverine biota, especially fish. We measured metal concentrations in livers of pre-flight herons from the Hanford Reach and excrement samples taken from the same nests. Nests were distributed among three colonies situated upstream and downstream from nine retired plutonium production reactors along the river where metals in reactor coolant waters had been released directly into the river or disposed to shoreline retention basins and ditches. Distances traveled by parent herons to foraging areas along the river shore were determined by visually tracking parent birds as they flew from nests to upriver and downriver foraging sites. Foraging flight distances varied between colonies with mean distances ranging between 0.7 and 3.1 km. Cadmium, Cr, and Pb concentrations were higher in excrement than in the livers of pre-flight herons but the opposite was noted for Cu, Hg, and Zn. Highest metal concentrations of Cr, Cu, Zn, Cd, and Pb, were measured in excrement taken from heron nests at the colony located upstream from all reactors. These results were consistent with metal concentrations reported in river sediment from the same regions, indicating excrement from the heron nests may be a useful indicator of dietary uptake of metals by herons. Fledging success and eggshell thickness measurements were used as an index of health of the local heron population. The results indicate that the reproductive health of great blue herons nesting along the Hanford Reach is among the highest reported in the continental United States. JF - Environmental monitoring and assessment AU - Tiller, Brett L AU - Marco, J D AU - Rickard, W H AD - Pacific Northwest National Laboratory, Richland, Washington, USA. brett.tiller@pnl.gov Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 71 EP - 79 VL - 104 IS - 1-3 SN - 0167-6369, 0167-6369 KW - Water Pollutants, Radioactive KW - 0 KW - Index Medicus KW - Animals KW - Washington KW - Food Contamination KW - Liver -- chemistry KW - Feces -- chemistry KW - Rivers KW - Water Pollutants, Radioactive -- analysis KW - Feeding Behavior KW - Birds -- physiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67893095?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+monitoring+and+assessment&rft.atitle=Metal+concentrations%2C+foraging+distances%2C+and+fledging+success+of+great+blue+herons+nesting+along+the+Hanford+Reach+of+the+Columbia+River.&rft.au=Tiller%2C+Brett+L%3BMarco%2C+J+D%3BRickard%2C+W+H&rft.aulast=Tiller&rft.aufirst=Brett&rft.date=2005-05-01&rft.volume=104&rft.issue=1-3&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Environmental+monitoring+and+assessment&rft.issn=01676369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-07-21 N1 - Date created - 2005-06-03 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Chemistry of metallic iron nanoparticles AN - 51646004; 2006-007304 JF - Geochimica et Cosmochimica Acta AU - Amonette, J E AU - Sarathy, V AU - Linehan, J C AU - Matson, D W AU - Wang, C AU - Nurmi, James T AU - Pecher, K AU - Penn, R L AU - Tratnyek, Paul G AU - Baer, D R AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 263 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - chlorinated hydrocarbons KW - benzoquinone KW - experimental studies KW - iron oxides KW - oxidation KW - dehalogenation KW - electrochemical properties KW - iron KW - carbon tetrachloride KW - reactivity KW - organic compounds KW - nanocrystalline materials KW - metals KW - dechlorination KW - oxides KW - halogenated hydrocarbons KW - spectra KW - particulate materials KW - geochemistry KW - EPR spectra KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51646004?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Chemistry+of+metallic+iron+nanoparticles&rft.au=Amonette%2C+J+E%3BSarathy%2C+V%3BLinehan%2C+J+C%3BMatson%2C+D+W%3BWang%2C+C%3BNurmi%2C+James+T%3BPecher%2C+K%3BPenn%2C+R+L%3BTratnyek%2C+Paul+G%3BBaer%2C+D+R%3BAnonymous&rft.aulast=Amonette&rft.aufirst=J&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=263&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - benzoquinone; carbon tetrachloride; chlorinated hydrocarbons; dechlorination; dehalogenation; electrochemical properties; EPR spectra; experimental studies; geochemistry; halogenated hydrocarbons; iron; iron oxides; metals; nanocrystalline materials; organic compounds; oxidation; oxides; particulate materials; reactivity; spectra ER - TY - JOUR T1 - Uranium oxides generated from armored vehicles perforated by ammunition composed of depleted uranium metal AN - 51645832; 2006-007309 JF - Geochimica et Cosmochimica Acta AU - Krupka, K M AU - Parkhurst, M A AU - Arey, B AU - Jenson, E D AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 266 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - silicates KW - autunite KW - medical geology KW - uranium oxides KW - becquerelite KW - crystal growth KW - wars KW - air pollution KW - military geology KW - orthosilicates KW - oxides KW - spectra KW - soils KW - schoepite KW - toxic materials KW - experimental studies KW - oxidation KW - pollution KW - phosphates KW - solubility KW - uranium minerals KW - energy dispersive X-ray spectra KW - nesosilicates KW - hydroxides KW - soddyite KW - metals KW - aerosols KW - risk assessment KW - uranium KW - uranophane KW - actinides KW - SEM data KW - public health KW - 01C:Mineralogy of non-silicates KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51645832?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Uranium+oxides+generated+from+armored+vehicles+perforated+by+ammunition+composed+of+depleted+uranium+metal&rft.au=Krupka%2C+K+M%3BParkhurst%2C+M+A%3BArey%2C+B%3BJenson%2C+E+D%3BAnonymous&rft.aulast=Krupka&rft.aufirst=K&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=266&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; aerosols; air pollution; autunite; becquerelite; crystal growth; energy dispersive X-ray spectra; experimental studies; hydroxides; medical geology; metals; military geology; nesosilicates; orthosilicates; oxidation; oxides; phosphates; pollution; public health; risk assessment; schoepite; SEM data; silicates; soddyite; soils; solubility; spectra; toxic materials; uranium; uranium minerals; uranium oxides; uranophane; wars ER - TY - JOUR T1 - Calibration of surface complexation reactions with zeta potentials AN - 51644911; 2006-007215 JF - Geochimica et Cosmochimica Acta AU - Boily, J F AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 43 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - experimental studies KW - goethite KW - complexing KW - mineral-water interface KW - calibration KW - aqueous solutions KW - adsorption KW - electrochemical properties KW - oxides KW - thermodynamic properties KW - geochemistry KW - pH KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51644911?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Calibration+of+surface+complexation+reactions+with+zeta+potentials&rft.au=Boily%2C+J+F%3BAnonymous&rft.aulast=Boily&rft.aufirst=J&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=43&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - adsorption; aqueous solutions; calibration; complexing; electrochemical properties; experimental studies; geochemistry; goethite; mineral-water interface; oxides; pH; thermodynamic properties ER - TY - JOUR T1 - Atomistic simulation of the mineral-water interface in contact with charged surfaces AN - 51642136; 2006-007208 JF - Geochimica et Cosmochimica Acta AU - Cooke, David J AU - Kerisit, Sebastien AU - Marmier, Arnaud AU - Parker, Stephen C AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 40 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - sodium chloride KW - goethite KW - mineral-water interface KW - electrostatic properties KW - aqueous solutions KW - simulation KW - ions KW - hydroxyl ion KW - oxides KW - molecular dynamics KW - stoichiometry KW - geochemistry KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51642136?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Atomistic+simulation+of+the+mineral-water+interface+in+contact+with+charged+surfaces&rft.au=Cooke%2C+David+J%3BKerisit%2C+Sebastien%3BMarmier%2C+Arnaud%3BParker%2C+Stephen+C%3BAnonymous&rft.aulast=Cooke&rft.aufirst=David&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=40&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aqueous solutions; electrostatic properties; geochemistry; goethite; hydroxyl ion; ions; mineral-water interface; molecular dynamics; oxides; simulation; sodium chloride; stoichiometry ER - TY - JOUR T1 - Abiotic Tc(VII) reduction by Fe(II) AN - 51630354; 2006-014655 JF - Geochimica et Cosmochimica Acta AU - Jeon, Byong-Hun AU - Zachara, John M AU - Liu, Chongxuan AU - Kukkadapu, Ravi AU - Dohnalkova, Alice AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 368 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - isotopes KW - iron KW - laboratory studies KW - radioactive isotopes KW - chemical reactions KW - oxides KW - valency KW - spectra KW - reduction KW - kinetics KW - geochemistry KW - pH KW - Mossbauer spectra KW - technetium KW - experimental studies KW - pollutants KW - pollution KW - Tc-99 KW - TEM data KW - ferrous iron KW - precipitation KW - metals KW - anaerobic environment KW - magnetite KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51630354?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Abiotic+Tc%28VII%29+reduction+by+Fe%28II%29&rft.au=Jeon%2C+Byong-Hun%3BZachara%2C+John+M%3BLiu%2C+Chongxuan%3BKukkadapu%2C+Ravi%3BDohnalkova%2C+Alice%3BAnonymous&rft.aulast=Jeon&rft.aufirst=Byong-Hun&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=368&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M.Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - anaerobic environment; chemical reactions; experimental studies; ferrous iron; geochemistry; iron; isotopes; kinetics; laboratory studies; magnetite; metals; Mossbauer spectra; oxides; pH; pollutants; pollution; precipitation; radioactive isotopes; reduction; spectra; Tc-99; technetium; TEM data; valency ER - TY - JOUR T1 - Building conceptual process models of field scale uranium reactive transport for the Hanford 300 area AN - 51625259; 2006-018435 JF - Geochimica et Cosmochimica Acta AU - Yabusaki, S B AU - Fang, Y AU - Waichler, S R AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 414 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - United States KW - sorption KW - one-dimensional models KW - rivers and streams KW - unsaturated zone KW - coupling KW - simulation KW - radioactive waste KW - ground water KW - laboratory studies KW - transport KW - levels KW - mobility KW - kinetics KW - geochemistry KW - pH KW - hydrology KW - experimental studies KW - Washington KW - Columbia River KW - surface water KW - pollution KW - Hanford Site KW - hydrochemistry KW - aquifers KW - recharge KW - metals KW - theoretical models KW - uranium KW - waste disposal KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51625259?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Building+conceptual+process+models+of+field+scale+uranium+reactive+transport+for+the+Hanford+300+area&rft.au=Yabusaki%2C+S+B%3BFang%2C+Y%3BWaichler%2C+S+R%3BAnonymous&rft.aulast=Yabusaki&rft.aufirst=S&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=414&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; aquifers; Columbia River; coupling; experimental studies; geochemistry; ground water; Hanford Site; hydrochemistry; hydrology; kinetics; laboratory studies; levels; metals; mobility; one-dimensional models; pH; pollution; radioactive waste; recharge; rivers and streams; simulation; sorption; surface water; theoretical models; transport; United States; unsaturated zone; uranium; Washington; waste disposal ER - TY - JOUR T1 - Reduction of uranyl by trace to minor structural Fe(II) in phyllosilicates AN - 51623664; 2006-022333 JF - Geochimica et Cosmochimica Acta AU - Ilton, Eugene S AU - Heald, Steve M AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 471 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - silicates KW - sorption KW - muscovite KW - iron KW - radioactive waste KW - XANES spectra KW - laboratory studies KW - mica group KW - valency KW - spectra KW - reduction KW - trace elements KW - heterogeneity KW - geochemistry KW - mineral interlayer KW - experimental studies KW - minor elements KW - oxidation KW - uranyl ion KW - X-ray spectra KW - ferrous iron KW - single-crystal method KW - metals KW - bacteria KW - sheet silicates KW - uranium KW - waste disposal KW - phlogopite KW - actinides KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51623664?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Reduction+of+uranyl+by+trace+to+minor+structural+Fe%28II%29+in+phyllosilicates&rft.au=Ilton%2C+Eugene+S%3BHeald%2C+Steve+M%3BAnonymous&rft.aulast=Ilton&rft.aufirst=Eugene&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=471&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 1 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; bacteria; experimental studies; ferrous iron; geochemistry; heterogeneity; iron; laboratory studies; metals; mica group; mineral interlayer; minor elements; muscovite; oxidation; phlogopite; radioactive waste; reduction; sheet silicates; silicates; single-crystal method; sorption; spectra; trace elements; uranium; uranyl ion; valency; waste disposal; X-ray spectra; XANES spectra ER - TY - JOUR T1 - Uranium(VI) desorption from long-term contaminated sediments AN - 51623324; 2006-022331 JF - Geochimica et Cosmochimica Acta AU - Qafoku, N P AU - Zachara, John M AU - Liu, Chongxuan AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 470 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - experimental studies KW - desorption KW - contaminant plumes KW - unsaturated zone KW - pollution KW - electrolytes KW - advection KW - radioactive waste KW - hexavalent uranium KW - ground water KW - calcite KW - laboratory studies KW - controls KW - metals KW - sediments KW - paleosols KW - uranium KW - waste disposal KW - leaching KW - geochemistry KW - carbonates KW - actinides KW - pH KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51623324?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Uranium%28VI%29+desorption+from+long-term+contaminated+sediments&rft.au=Qafoku%2C+N+P%3BZachara%2C+John+M%3BLiu%2C+Chongxuan%3BAnonymous&rft.aulast=Qafoku&rft.aufirst=N&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=470&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; advection; calcite; carbonates; contaminant plumes; controls; desorption; electrolytes; experimental studies; geochemistry; ground water; hexavalent uranium; laboratory studies; leaching; metals; paleosols; pH; pollution; radioactive waste; sediments; unsaturated zone; uranium; waste disposal ER - TY - JOUR T1 - Thermochemical data to describe actinide partitioning to bacteria; a mixed solvent approach AN - 51623210; 2006-018443 JF - Geochimica et Cosmochimica Acta AU - Clark, Sue B AU - Felmy, Andy R AU - Qafoku, Odeta AU - Wang, Zheming AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 418 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - experimental studies KW - fatty acids KW - lipids KW - solubility KW - radioactive waste KW - partitioning KW - organic compounds KW - organic acids KW - ligands KW - biogenic processes KW - solvents KW - phase equilibria KW - metals KW - bacteria KW - thermochemical properties KW - spectra KW - molecular dynamics KW - geochemistry KW - actinides KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51623210?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Thermochemical+data+to+describe+actinide+partitioning+to+bacteria%3B+a+mixed+solvent+approach&rft.au=Clark%2C+Sue+B%3BFelmy%2C+Andy+R%3BQafoku%2C+Odeta%3BWang%2C+Zheming%3BAnonymous&rft.aulast=Clark&rft.aufirst=Sue&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=418&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; bacteria; biogenic processes; experimental studies; fatty acids; geochemistry; ligands; lipids; metals; molecular dynamics; organic acids; organic compounds; partitioning; phase equilibria; radioactive waste; solubility; solvents; spectra; thermochemical properties ER - TY - JOUR T1 - Modification of hematite surfaces during colonization by a dissimilatory Fe(III) reducing bacterium under controlled hydrodynamic conditions AN - 51623164; 2006-022309 JF - Geochimica et Cosmochimica Acta AU - Geesey, G G AU - Gonzalez-Gil, G AU - Amonette, James E AU - Romine, M F AU - Gorby, Yuri A AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 459 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - experimental studies KW - mineral-water interface KW - citrate-bicarbonate-dithionite method KW - Shewanella KW - iron KW - colonization KW - ferrous iron KW - laboratory studies KW - ferric iron KW - mineral cleavage KW - hematite KW - precipitation KW - metals KW - Shewanella oneidensis KW - biofilms KW - bacteria KW - oxides KW - reduction KW - heterogeneity KW - geochemistry KW - mineral surface KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51623164?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Modification+of+hematite+surfaces+during+colonization+by+a+dissimilatory+Fe%28III%29+reducing+bacterium+under+controlled+hydrodynamic+conditions&rft.au=Geesey%2C+G+G%3BGonzalez-Gil%2C+G%3BAmonette%2C+James+E%3BRomine%2C+M+F%3BGorby%2C+Yuri+A%3BAnonymous&rft.aulast=Geesey&rft.aufirst=G&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=459&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - bacteria; biofilms; citrate-bicarbonate-dithionite method; colonization; experimental studies; ferric iron; ferrous iron; geochemistry; hematite; heterogeneity; iron; laboratory studies; metals; mineral cleavage; mineral surface; mineral-water interface; oxides; precipitation; reduction; Shewanella; Shewanella oneidensis ER - TY - JOUR T1 - Reoxidation of biologically reduced uranium with Fe(III)-(hydr)oxides under sulfate-reducing conditions AN - 51622484; 2006-022332 JF - Geochimica et Cosmochimica Acta AU - Sani, Rajesh K AU - Peyton, Brent M AU - Dohnalkova, Alice AU - Amonette, James E AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 471 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - goethite KW - stability KW - iron KW - radioactive waste KW - XANES spectra KW - ferric iron KW - hematite KW - Desulfovibrio KW - oxides KW - spectra KW - reduction KW - Eh KW - experimental studies KW - oxidation KW - Desulfovibrio desulfuricans KW - ferrihydrite KW - X-ray spectra KW - TEM data KW - iron hydroxides KW - hydroxides KW - biogenic processes KW - metals KW - uranium KW - waste disposal KW - uraninite KW - actinides KW - microorganisms KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51622484?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Reoxidation+of+biologically+reduced+uranium+with+Fe%28III%29-%28hydr%29oxides+under+sulfate-reducing+conditions&rft.au=Sani%2C+Rajesh+K%3BPeyton%2C+Brent+M%3BDohnalkova%2C+Alice%3BAmonette%2C+James+E%3BAnonymous&rft.aulast=Sani&rft.aufirst=Rajesh&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=471&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; biogenic processes; Desulfovibrio; Desulfovibrio desulfuricans; Eh; experimental studies; ferric iron; ferrihydrite; goethite; hematite; hydroxides; iron; iron hydroxides; metals; microorganisms; oxidation; oxides; radioactive waste; reduction; spectra; stability; TEM data; uraninite; uranium; waste disposal; X-ray spectra; XANES spectra ER - TY - JOUR T1 - The Columbia River basalts AN - 51621667; 2006-020503 JF - Geochimica et Cosmochimica Acta AU - Hooper, Peter R AU - Camp, Victor E AU - Reidel, Stephen AU - Ross, Martin AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 138 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - United States KW - Blue Mountains KW - volcanic rocks KW - Picture Gorge Basalt KW - igneous rocks KW - mantle KW - Cenozoic KW - dike swarms KW - basalts KW - basins KW - back-arc basins KW - mantle plumes KW - Idaho KW - tholeiite KW - Yellowstone Hot Spot KW - Columbia River Basalt Group KW - North American Plate KW - Miocene KW - extension KW - Tertiary KW - plate tectonics KW - Neogene KW - eruptions KW - Cascadia subduction zone KW - Snake River plain KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51621667?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=The+Columbia+River+basalts&rft.au=Hooper%2C+Peter+R%3BCamp%2C+Victor+E%3BReidel%2C+Stephen%3BRoss%2C+Martin%3BAnonymous&rft.aulast=Hooper&rft.aufirst=Peter&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=138&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - back-arc basins; basalts; basins; Blue Mountains; Cascadia subduction zone; Cenozoic; Columbia River Basalt Group; dike swarms; eruptions; extension; Idaho; igneous rocks; mantle; mantle plumes; Miocene; Neogene; North American Plate; Picture Gorge Basalt; plate tectonics; Snake River plain; Tertiary; tholeiite; United States; volcanic rocks; Yellowstone Hot Spot ER - TY - JOUR T1 - In-situ identification of uranium minerals in concrete AN - 51621071; 2006-022327 JF - Geochimica et Cosmochimica Acta AU - Wellman, Dawn M AU - Mattigod, S V AU - Arey, Bruce W AU - Wood, Marcus I AU - Forrester, Steven W AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 468 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - silicates KW - sorption KW - crystal growth KW - laboratory studies KW - oxides KW - trace elements KW - geochemistry KW - disposal barriers KW - construction materials KW - experimental studies KW - diffusion KW - in situ KW - pollutants KW - cement materials KW - oxyhydroxides KW - uranyl ion KW - pollution KW - phosphates KW - uranium minerals KW - concrete KW - paragenesis KW - hydroxides KW - precipitation KW - identification KW - waste disposal KW - SEM data KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51621071?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=In-situ+identification+of+uranium+minerals+in+concrete&rft.au=Wellman%2C+Dawn+M%3BMattigod%2C+S+V%3BArey%2C+Bruce+W%3BWood%2C+Marcus+I%3BForrester%2C+Steven+W%3BAnonymous&rft.aulast=Wellman&rft.aufirst=Dawn&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=468&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - cement materials; concrete; construction materials; crystal growth; diffusion; disposal barriers; experimental studies; geochemistry; hydroxides; identification; in situ; laboratory studies; oxides; oxyhydroxides; paragenesis; phosphates; pollutants; pollution; precipitation; SEM data; silicates; sorption; trace elements; uranium minerals; uranyl ion; waste disposal ER - TY - JOUR T1 - Uranyl-calcium coordination in calcium carbonate systems AN - 51621021; 2006-022336 JF - Geochimica et Cosmochimica Acta AU - Kelly, S D AU - Brooks, S C AU - Fredrickson, J K AU - Rasbury, E T AU - Spoetl, C AU - Sturchio, N C AU - Kemner, K M AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 473 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - calcium KW - coordination KW - complexing KW - remediation KW - radioactive waste KW - hexavalent uranium KW - laboratory studies KW - X-ray fluorescence spectra KW - calcium carbonate KW - spectra KW - reduction KW - geochemistry KW - alkaline earth metals KW - experimental studies KW - XAFS spectra KW - uranyl ion KW - bioremediation KW - X-ray spectra KW - calcite KW - metals KW - uranium KW - waste disposal KW - carbonates KW - actinides KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51621021?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Uranyl-calcium+coordination+in+calcium+carbonate+systems&rft.au=Kelly%2C+S+D%3BBrooks%2C+S+C%3BFredrickson%2C+J+K%3BRasbury%2C+E+T%3BSpoetl%2C+C%3BSturchio%2C+N+C%3BKemner%2C+K+M%3BAnonymous&rft.aulast=Kelly&rft.aufirst=S&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=473&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; alkaline earth metals; bioremediation; calcite; calcium; calcium carbonate; carbonates; complexing; coordination; experimental studies; geochemistry; hexavalent uranium; laboratory studies; metals; radioactive waste; reduction; remediation; spectra; uranium; uranyl ion; waste disposal; X-ray fluorescence spectra; X-ray spectra; XAFS spectra ER - TY - JOUR T1 - Heterogeneity in Columbia River Basalt Group dikes and the flows they feed; implications for significance and time scale of magma processes AN - 51620044; 2006-020504 JF - Geochimica et Cosmochimica Acta AU - Reidel, Stephen AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 139 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - United States KW - flood basalts KW - volcanic rocks KW - lava flows KW - igneous rocks KW - Columbia River Basalt Group KW - Grande Ronde Basalt KW - Miocene KW - Saddle Mountains Basalt KW - Cenozoic KW - Tertiary KW - intrusions KW - dikes KW - Neogene KW - magmas KW - eruptions KW - basalts KW - composition KW - Columbia Plateau KW - temporal distribution KW - heterogeneity KW - magma chambers KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51620044?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Heterogeneity+in+Columbia+River+Basalt+Group+dikes+and+the+flows+they+feed%3B+implications+for+significance+and+time+scale+of+magma+processes&rft.au=Reidel%2C+Stephen%3BAnonymous&rft.aulast=Reidel&rft.aufirst=Stephen&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=139&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - basalts; Cenozoic; Columbia Plateau; Columbia River Basalt Group; composition; dikes; eruptions; flood basalts; Grande Ronde Basalt; heterogeneity; igneous rocks; intrusions; lava flows; magma chambers; magmas; Miocene; Neogene; Saddle Mountains Basalt; temporal distribution; Tertiary; United States; volcanic rocks ER - TY - JOUR T1 - Probing uranium speciation in contaminated Hanford sediments AN - 51619820; 2006-022339 JF - Geochimica et Cosmochimica Acta AU - Catalano, Jeffrey G AU - Wang, Zheming AU - McKinley, James P AU - Zachara, John M AU - Heald, Steve M AU - Brown, Gordon E, Jr AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 474 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - United States KW - silicates KW - X-ray diffraction data KW - unsaturated zone KW - radioactive waste KW - synchrotron radiation KW - chemical reactions KW - sediments KW - orthosilicates KW - spectra KW - geochemistry KW - soils KW - leaking underground storage tanks KW - high-level waste KW - experimental studies KW - Washington KW - XAFS spectra KW - pollution KW - Hanford Site KW - X-ray spectra KW - nesosilicates KW - X-ray data KW - soil pollution KW - metals KW - risk assessment KW - uranium KW - waste disposal KW - uranophane KW - actinides KW - chemical fractionation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51619820?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Probing+uranium+speciation+in+contaminated+Hanford+sediments&rft.au=Catalano%2C+Jeffrey+G%3BWang%2C+Zheming%3BMcKinley%2C+James+P%3BZachara%2C+John+M%3BHeald%2C+Steve+M%3BBrown%2C+Gordon+E%2C+Jr%3BAnonymous&rft.aulast=Catalano&rft.aufirst=Jeffrey&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=474&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; chemical fractionation; chemical reactions; experimental studies; geochemistry; Hanford Site; high-level waste; leaking underground storage tanks; metals; nesosilicates; orthosilicates; pollution; radioactive waste; risk assessment; sediments; silicates; soil pollution; soils; spectra; synchrotron radiation; United States; unsaturated zone; uranium; uranophane; Washington; waste disposal; X-ray data; X-ray diffraction data; X-ray spectra; XAFS spectra ER - TY - JOUR T1 - The importance of diffusion at the microbe-mineral interface; electrical double layer effects and the impact on precipitation/dissolution AN - 51618525; 2006-020568 JF - Geochimica et Cosmochimica Acta AU - Felmy, Andrew R AU - Liu, C AU - Straatsma, T P AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 171 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - electrical properties KW - diffusion KW - biogenic processes KW - chemical reactions KW - precipitation KW - mineral-water interface KW - molecular dynamics KW - solution KW - ions KW - geochemistry KW - microorganisms KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51618525?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=The+importance+of+diffusion+at+the+microbe-mineral+interface%3B+electrical+double+layer+effects+and+the+impact+on+precipitation%2Fdissolution&rft.au=Felmy%2C+Andrew+R%3BLiu%2C+C%3BStraatsma%2C+T+P%3BAnonymous&rft.aulast=Felmy&rft.aufirst=Andrew&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=171&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - biogenic processes; chemical reactions; diffusion; electrical properties; geochemistry; ions; microorganisms; mineral-water interface; molecular dynamics; precipitation; solution ER - TY - JOUR T1 - Microscopic reactive diffusion of U(VI) in subsurface sediments; characterization and modeling AN - 51618353; 2006-020566 JF - Geochimica et Cosmochimica Acta AU - Liu, C AU - Majors, P D AU - Zachara, J M AU - McKinley, J P AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 170 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - silicates KW - fractured materials KW - characterization KW - NMR spectra KW - radioactive waste KW - hexavalent uranium KW - chemical reactions KW - sediments KW - orthosilicates KW - spectra KW - geochemistry KW - water KW - diffusion KW - numerical models KW - pollutants KW - uranyl ion KW - pollution KW - boltwoodite KW - nesosilicates KW - models KW - precipitation KW - metals KW - uranium KW - waste disposal KW - actinides KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51618353?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Microscopic+reactive+diffusion+of+U%28VI%29+in+subsurface+sediments%3B+characterization+and+modeling&rft.au=Liu%2C+C%3BMajors%2C+P+D%3BZachara%2C+J+M%3BMcKinley%2C+J+P%3BAnonymous&rft.aulast=Liu&rft.aufirst=C&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=170&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 1 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; boltwoodite; characterization; chemical reactions; diffusion; fractured materials; geochemistry; hexavalent uranium; metals; models; nesosilicates; NMR spectra; numerical models; orthosilicates; pollutants; pollution; precipitation; radioactive waste; sediments; silicates; spectra; uranium; uranyl ion; waste disposal; water ER - TY - JOUR T1 - Rates of uranium electron transfer; a theoretical perspective AN - 51615397; 2006-014638 JF - Geochimica et Cosmochimica Acta AU - Rosso, Kevin M AU - Wang, Zheming AU - Ainsworth, Calvin C AU - Fredrickson, Jim K AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 360 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - carbonate ion KW - sulfate ion KW - mineral-water interface KW - crystal structure KW - phosphate ion KW - ligands KW - biogenic processes KW - metals KW - bacteria KW - theoretical models KW - uranium KW - reduction KW - transformations KW - mobility KW - kinetics KW - geochemistry KW - aquatic environment KW - actinides KW - Eh KW - electrons KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51615397?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Rates+of+uranium+electron+transfer%3B+a+theoretical+perspective&rft.au=Rosso%2C+Kevin+M%3BWang%2C+Zheming%3BAinsworth%2C+Calvin+C%3BFredrickson%2C+Jim+K%3BAnonymous&rft.aulast=Rosso&rft.aufirst=Kevin&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=360&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M.Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; aquatic environment; bacteria; biogenic processes; carbonate ion; crystal structure; Eh; electrons; geochemistry; kinetics; ligands; metals; mineral-water interface; mobility; phosphate ion; reduction; sulfate ion; theoretical models; transformations; uranium ER - TY - JOUR T1 - Tracking sources of unsaturated zone and ground water nitrate contamination using nitrogen and oxygen stable isotopes at the Hanford Site, Washington AN - 51521789; 2006-089474 JF - Environmental Science & Technology, ES & T AU - Singleton, Michael J AU - Woods, Katharine N AU - Conrad, Mark E AU - DePaolo, Donald J AU - Dresel, P Evan Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 3563 EP - 3570 PB - American Chemical Society, Washington, DC VL - 39 IS - 10 SN - 0013-936X, 0013-936X KW - United States KW - hazardous waste KW - caliche KW - volcanic rocks KW - oxygen KW - isotopes KW - igneous rocks KW - unsaturated zone KW - observation wells KW - mass spectra KW - duricrust KW - environmental analysis KW - stable isotopes KW - radioactive waste KW - nitrogen KW - ground water KW - Cenozoic KW - sedimentary rocks KW - sampling KW - movement KW - basalts KW - sediments KW - spectra KW - geochemistry KW - soils KW - bedrock KW - chemically precipitated rocks KW - Washington KW - N-15/N-14 KW - Quaternary KW - pollutants KW - isotope ratios KW - Columbia River Basalt Group KW - pollution KW - nitrates KW - Hanford Site KW - O-18/O-16 KW - Ringold Formation KW - hydrochemistry KW - Miocene KW - aquifers KW - calcareous composition KW - Tertiary KW - Neogene KW - Pliocene KW - Pleistocene KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51521789?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Tracking+sources+of+unsaturated+zone+and+ground+water+nitrate+contamination+using+nitrogen+and+oxygen+stable+isotopes+at+the+Hanford+Site%2C+Washington&rft.au=Singleton%2C+Michael+J%3BWoods%2C+Katharine+N%3BConrad%2C+Mark+E%3BDePaolo%2C+Donald+J%3BDresel%2C+P+Evan&rft.aulast=Singleton&rft.aufirst=Michael&rft.date=2005-05-01&rft.volume=39&rft.issue=10&rft.spage=3563&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes0481070 L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 31 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - aquifers; basalts; bedrock; calcareous composition; caliche; Cenozoic; chemically precipitated rocks; Columbia River Basalt Group; duricrust; environmental analysis; geochemistry; ground water; Hanford Site; hazardous waste; hydrochemistry; igneous rocks; isotope ratios; isotopes; mass spectra; Miocene; movement; N-15/N-14; Neogene; nitrates; nitrogen; O-18/O-16; observation wells; oxygen; Pleistocene; Pliocene; pollutants; pollution; Quaternary; radioactive waste; Ringold Formation; sampling; sedimentary rocks; sediments; soils; spectra; stable isotopes; Tertiary; United States; unsaturated zone; volcanic rocks; Washington; waste disposal DO - http://dx.doi.org/10.1021/es0481070 ER - TY - JOUR T1 - Kinetic desorption and sorption of U(VI) during reactive transport in a contaminated Hanford sediment AN - 51520570; 2006-089458 JF - Environmental Science & Technology, ES & T AU - Qafoku, Nikolla P AU - Zachara, John M AU - Liu, Chongxuan AU - Gassman, Paul L AU - Qafoku, Odeta S AU - Smith, Steven C Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 3157 EP - 3165 PB - American Chemical Society, Washington, DC VL - 39 IS - 9 SN - 0013-936X, 0013-936X KW - United States KW - solute transport KW - sorption KW - desorption KW - contaminant plumes KW - isotopes KW - unsaturated zone KW - ground water KW - Cenozoic KW - reactivity KW - radioactive isotopes KW - mineral composition KW - movement KW - tracers KW - sediments KW - chemical composition KW - kinetics KW - geochemistry KW - soils KW - hydrology KW - experimental studies KW - Washington KW - Quaternary KW - pollutants KW - Columbia River KW - pollution KW - Hanford Site KW - electrolytes KW - hydrochemistry KW - aquifers KW - alkalic composition KW - models KW - metals KW - mathematical methods KW - theoretical models KW - Pleistocene KW - uranium KW - carbonates KW - actinides KW - chemical fractionation KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51520570?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Kinetic+desorption+and+sorption+of+U%28VI%29+during+reactive+transport+in+a+contaminated+Hanford+sediment&rft.au=Qafoku%2C+Nikolla+P%3BZachara%2C+John+M%3BLiu%2C+Chongxuan%3BGassman%2C+Paul+L%3BQafoku%2C+Odeta+S%3BSmith%2C+Steven+C&rft.aulast=Qafoku&rft.aufirst=Nikolla&rft.date=2005-05-01&rft.volume=39&rft.issue=9&rft.spage=3157&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes048462q L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 60 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - actinides; alkalic composition; aquifers; carbonates; Cenozoic; chemical composition; chemical fractionation; Columbia River; contaminant plumes; desorption; electrolytes; experimental studies; geochemistry; ground water; Hanford Site; hydrochemistry; hydrology; isotopes; kinetics; mathematical methods; metals; mineral composition; models; movement; Pleistocene; pollutants; pollution; Quaternary; radioactive isotopes; reactivity; sediments; soils; solute transport; sorption; theoretical models; tracers; United States; unsaturated zone; uranium; Washington DO - http://dx.doi.org/10.1021/es048462q ER - TY - JOUR T1 - Fate and transport of CL-20 and RDX in unsaturated laboratory columns AN - 51466102; 2007-032789 JF - Eos, Transactions, American Geophysical Union AU - LeMond, L A AU - Gamerdinger, A P AU - Szecsody, J E AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - Abstract H13B EP - 07 PB - American Geophysical Union, Washington, DC VL - 86 IS - 18, Suppl. SN - 0096-3941, 0096-3941 KW - soils KW - hydrology KW - sorption KW - experimental studies KW - degradation KW - CL-20 KW - pollutants KW - unsaturated zone KW - pollution KW - RDX KW - laboratory studies KW - triazines KW - organic compounds KW - explosives KW - transport KW - soil pollution KW - residence time KW - hydrodynamics KW - water content KW - geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51466102?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Fate+and+transport+of+CL-20+and+RDX+in+unsaturated+laboratory+columns&rft.au=LeMond%2C+L+A%3BGamerdinger%2C+A+P%3BSzecsody%2C+J+E%3BAnonymous&rft.aulast=LeMond&rft.aufirst=L&rft.date=2005-05-01&rft.volume=86&rft.issue=18%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2005 joint assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - CL-20; degradation; experimental studies; explosives; geochemistry; hydrodynamics; hydrology; laboratory studies; organic compounds; pollutants; pollution; RDX; residence time; soil pollution; soils; sorption; transport; triazines; unsaturated zone; water content ER - TY - JOUR T1 - Identification of physical and chemical mass transfer processes by a tracer flush experiment AN - 51420712; 2007-064456 JF - Eos, Transactions, American Geophysical Union AU - Scheibe, T D AU - Brooks, S C AU - Kamolpornwijit, W AU - Fang, Y AU - Roden, E E AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - Abstract H51A EP - 02 PB - American Geophysical Union, Washington, DC VL - 86 IS - 18, Suppl. SN - 0096-3941, 0096-3941 KW - solute transport KW - sorption KW - halogens KW - observation wells KW - ground water KW - transport KW - chloride ion KW - tracers KW - hydrodynamics KW - nitrate ion KW - mass transfer KW - heterogeneity KW - water pollution KW - geochemistry KW - chlorine KW - concentration KW - experimental studies KW - diffusion KW - pollutants KW - physicochemical properties KW - pollution KW - hydrochemistry KW - porosity KW - aquifers KW - metals KW - identification KW - uranium KW - hydraulic conductivity KW - actinides KW - pore water KW - field studies KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51420712?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Identification+of+physical+and+chemical+mass+transfer+processes+by+a+tracer+flush+experiment&rft.au=Scheibe%2C+T+D%3BBrooks%2C+S+C%3BKamolpornwijit%2C+W%3BFang%2C+Y%3BRoden%2C+E+E%3BAnonymous&rft.aulast=Scheibe&rft.aufirst=T&rft.date=2005-05-01&rft.volume=86&rft.issue=18%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2005 joint assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; aquifers; chloride ion; chlorine; concentration; diffusion; experimental studies; field studies; geochemistry; ground water; halogens; heterogeneity; hydraulic conductivity; hydrochemistry; hydrodynamics; identification; mass transfer; metals; nitrate ion; observation wells; physicochemical properties; pollutants; pollution; pore water; porosity; solute transport; sorption; tracers; transport; uranium; water pollution ER - TY - JOUR T1 - Estimation of groundwater flow distribution in structured media from non-reactive tracer results under unsaturated condition AN - 51420147; 2007-064459 JF - Eos, Transactions, American Geophysical Union AU - Kamolpornwijit, W AU - Kim, Y AU - Brooks, S C AU - Scheibe, T D AU - Mayes, M A AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - Abstract H51A EP - 05 PB - American Geophysical Union, Washington, DC VL - 86 IS - 18, Suppl. SN - 0096-3941, 0096-3941 KW - sorption KW - diffusion KW - pollutants KW - one-dimensional models KW - unsaturated zone KW - pollution KW - distribution KW - ground water KW - saprolite KW - transport KW - tracers KW - velocity KW - hydrodynamics KW - hydraulic conductivity KW - water pollution KW - pore water KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51420147?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Estimation+of+groundwater+flow+distribution+in+structured+media+from+non-reactive+tracer+results+under+unsaturated+condition&rft.au=Kamolpornwijit%2C+W%3BKim%2C+Y%3BBrooks%2C+S+C%3BScheibe%2C+T+D%3BMayes%2C+M+A%3BAnonymous&rft.aulast=Kamolpornwijit&rft.aufirst=W&rft.date=2005-05-01&rft.volume=86&rft.issue=18%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2005 joint assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - diffusion; distribution; ground water; hydraulic conductivity; hydrodynamics; one-dimensional models; pollutants; pollution; pore water; saprolite; sorption; tracers; transport; unsaturated zone; velocity; water pollution ER - TY - JOUR T1 - Immobilization of uranium (VI) in structured saprolite with microbial U(VI) reduction AN - 51418211; 2007-064460 JF - Eos, Transactions, American Geophysical Union AU - Kim, Y AU - Brooks, S C AU - Kamolpornwijit, W AU - Scheibe, T D AU - Roden, E E AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - Abstract H51A EP - 06 PB - American Geophysical Union, Washington, DC VL - 86 IS - 18, Suppl. SN - 0096-3941, 0096-3941 KW - fractured materials KW - experimental studies KW - pollutants KW - biostimulation KW - pollution KW - layered materials KW - hexavalent uranium KW - ground water KW - saprolite KW - laboratory studies KW - biogenic processes KW - sedimentary rocks KW - chemical reactions KW - metals KW - uranium KW - reduction KW - water pollution KW - mobility KW - actinides KW - permeability KW - microorganisms KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51418211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Immobilization+of+uranium+%28VI%29+in+structured+saprolite+with+microbial+U%28VI%29+reduction&rft.au=Kim%2C+Y%3BBrooks%2C+S+C%3BKamolpornwijit%2C+W%3BScheibe%2C+T+D%3BRoden%2C+E+E%3BAnonymous&rft.aulast=Kim&rft.aufirst=Y&rft.date=2005-05-01&rft.volume=86&rft.issue=18%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2005 joint assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; biogenic processes; biostimulation; chemical reactions; experimental studies; fractured materials; ground water; hexavalent uranium; laboratory studies; layered materials; metals; microorganisms; mobility; permeability; pollutants; pollution; reduction; saprolite; sedimentary rocks; uranium; water pollution ER - TY - JOUR T1 - An improved optimization algorithm and a Bayes factor termination criterion for sequential projection pursuit AN - 19437167; 6667034 AB - A fundamental problem in analysis of highly multivariate spectral or chromatographic data is the reduction of dimensionality. Principal components analysis (PCA), concerned with explaining the variance-covariance structure of the data, is a commonly used approach to dimension reduction. Recently, an attractive alternative to PCA, sequential projection pursuit (SPP), has been introduced. Designed to elicit clustering tendencies in the data, SPP may be more appropriate when performing clustering or classification analysis. However, the existing genetic algorithm (GA) implementation of SPP has two shortcomings, computation time and inability to determine the number of factors necessary to explain the majority of the structure in the data. We address both these shortcomings. First, we introduce a new SPP algorithm, a random scan sampling algorithm (RSSA), that significantly reduces computation time. We compare the computational burden of the RSSA and GA implementation for SPP on a data set containing Raman spectra of 12 organic compounds. Second, we propose a Bayes factor criterion, BFC, as an effective measure for selecting the number of factors needed to explain the majority of the structure in the data. We compare SPP to PCA on two data sets varying in type, size, and difficulty; in both cases, SPP achieves a higher accuracy with a lower number of latent variables. JF - Chemometrics and Intelligent Laboratory Systems AU - Webb-Robertson, Bobbie-Jo M AU - Jarman, Kristin H AU - Harvey, Scott D AU - Posse, Christian AU - Wright, Bob W AD - Pacific Northwest National Laboratory, P.O. BOX 999, K5-12, Richland, WA 99352, United States, Bobbie-Jo.Webb-Robertson@pnl.gov Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 149 EP - 160 PB - Elsevier Science Ltd., The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl] VL - 77 IS - 1-2 SN - 0169-7439, 0169-7439 KW - Biotechnology and Bioengineering Abstracts KW - Classification KW - Bayesian analysis KW - Principal components analysis KW - Algorithms KW - Organic compounds KW - Computer applications KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19437167?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemometrics+and+Intelligent+Laboratory+Systems&rft.atitle=An+improved+optimization+algorithm+and+a+Bayes+factor+termination+criterion+for+sequential+projection+pursuit&rft.au=Webb-Robertson%2C+Bobbie-Jo+M%3BJarman%2C+Kristin+H%3BHarvey%2C+Scott+D%3BPosse%2C+Christian%3BWright%2C+Bob+W&rft.aulast=Webb-Robertson&rft.aufirst=Bobbie-Jo&rft.date=2005-05-01&rft.volume=77&rft.issue=1-2&rft.spage=149&rft.isbn=&rft.btitle=&rft.title=Chemometrics+and+Intelligent+Laboratory+Systems&rft.issn=01697439&rft_id=info:doi/10.1016%2Fj.chemolab.2004.09.014 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Algorithms; Bayesian analysis; Classification; Principal components analysis; Organic compounds; Computer applications DO - http://dx.doi.org/10.1016/j.chemolab.2004.09.014 ER - TY - JOUR T1 - Track structure in DNA irradiated with heavy ions. AN - 67570723; 15799701 AB - The spatial properties of trapped radicals produced in heavy-ion-irradiated solid DNA at 77 K have been probed using pulsed electron paramagnetic double resonance (PELDOR or DEER) techniques. Salmon testes DNA hydrated to 12 water molecules per nucleotide was irradiated with 40Ar ions of energy 100 MeV/nucleon and LET ranging from 300 to 400 keV/microm. Irradiated samples were maintained at cryogenic temperature at all times. PELDOR measurements were made using a refocused echo detection sequence that allows dipolar interaction between trapped radicals to be observed. The EPR spectrum is attributed to electron loss/gain DNA base radicals and neutral carbon-centered radicals that likely arise from sugar damage. We find a radical concentration of 13.5 x 10(18) cm(-3) in the tracks and a track radius of 6.79 nm. The cross section of these tracks is 144 nm2, yielding a lineal radical density of 2.6 radicals/nm. Based on the yields determined previously for particles having calculated LET values of 300-400 keV/microm and our measured lineal density, we obtain an LET of 270 keV/microm, which is in good agreement with the calculated range of values. These measurements of radical density and spatial extent provide the first direct experimental determination of track characteristics in irradiated DNA. JF - Radiation research AU - Bowman, Michael K AU - Becker, David AU - Sevilla, Michael D AU - Zimbrick, John D AD - Structural Biology and Microimaging, Pacific Northwest National Laboratory, Richland, Washington 99352-0999, USA. Y1 - 2005/04// PY - 2005 DA - April 2005 SP - 447 EP - 454 VL - 163 IS - 4 SN - 0033-7587, 0033-7587 KW - DNA KW - 9007-49-2 KW - Index Medicus KW - Space life sciences KW - Salmon KW - Radiation Dosage KW - Nucleic Acid Conformation -- radiation effects KW - Animals KW - Dose-Response Relationship, Radiation KW - DNA Damage KW - Heavy Ions -- adverse effects KW - DNA -- analysis KW - DNA -- chemistry KW - DNA -- radiation effects KW - Linear Energy Transfer UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67570723?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+research&rft.atitle=Track+structure+in+DNA+irradiated+with+heavy+ions.&rft.au=Bowman%2C+Michael+K%3BBecker%2C+David%3BSevilla%2C+Michael+D%3BZimbrick%2C+John+D&rft.aulast=Bowman&rft.aufirst=Michael&rft.date=2005-04-01&rft.volume=163&rft.issue=4&rft.spage=447&rft.isbn=&rft.btitle=&rft.title=Radiation+research&rft.issn=00337587&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-05-18 N1 - Date created - 2005-03-31 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Determination of the uranium valence state in the brannerite structure using EELS, XPS, and EDX AN - 51656246; 2006-000940 JF - Physics and Chemistry of Minerals AU - Colella, M AU - Lumpkin, G R AU - Zhang, Z AU - Buck, E C AU - Smith, K L Y1 - 2005/04// PY - 2005 DA - April 2005 SP - 52 EP - 64 PB - Springer-Verlag, Berlin-New York VL - 32 IS - 1 SN - 0342-1791, 0342-1791 KW - Spain KW - East Africa KW - natural materials KW - Europe KW - crystal structure KW - Iberian Peninsula KW - Western Zambia KW - brannerite KW - Switzerland KW - Southern Europe KW - Andalusia Spain KW - EELS spectra KW - Central Europe KW - Ticino Switzerland KW - oxides KW - valency KW - spectra KW - X-ray photoelectron spectra KW - synthetic materials KW - amorphous materials KW - X-ray spectra KW - TEM data KW - Zambia KW - metals KW - Cordoba Spain KW - Africa KW - uranium KW - crystal chemistry KW - EDX data KW - actinides KW - SEM data KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51656246?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physics+and+Chemistry+of+Minerals&rft.atitle=Determination+of+the+uranium+valence+state+in+the+brannerite+structure+using+EELS%2C+XPS%2C+and+EDX&rft.au=Colella%2C+M%3BLumpkin%2C+G+R%3BZhang%2C+Z%3BBuck%2C+E+C%3BSmith%2C+K+L&rft.aulast=Colella&rft.aufirst=M&rft.date=2005-04-01&rft.volume=32&rft.issue=1&rft.spage=52&rft.isbn=&rft.btitle=&rft.title=Physics+and+Chemistry+of+Minerals&rft.issn=03421791&rft_id=info:doi/10.1007%2Fs00269-004-0444-5 L2 - http://www.springerlink.com/content/100449/?p=e597e977f1914094b3810f7e67f0a453&pi=0 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 36 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - PCMIDU N1 - SubjectsTermNotLitGenreText - actinides; Africa; amorphous materials; Andalusia Spain; brannerite; Central Europe; Cordoba Spain; crystal chemistry; crystal structure; East Africa; EDX data; EELS spectra; Europe; Iberian Peninsula; metals; natural materials; oxides; SEM data; Southern Europe; Spain; spectra; Switzerland; synthetic materials; TEM data; Ticino Switzerland; uranium; valency; Western Zambia; X-ray photoelectron spectra; X-ray spectra; Zambia DO - http://dx.doi.org/10.1007/s00269-004-0444-5 ER - TY - JOUR T1 - Lithofacies mapping at the Hanford Site; data management, analysis, and visualization AN - 51583495; 2006-046072 AB - Prediction of contaminant flow and transport is critical to remediation of contaminated sites. Flow and transport models typically require parameterization at grid block scales ranging from 0.1 m to 10's of m, depending on the dimensionality and size of the problem domain. Information on the spatial distribution and heterogeneity of the subsurface properties that control flow and transport is often very limited. However, understanding of the sedimentary geology and particularly the spatial distribution of lithofacies can be used to constrain estimates on the spatial distribution and heterogeneity of key subsurface properties. Borehole data are the cornerstone of subsurface characterization, monitoring, and performance assessment programs. These data often take great effort and expense to generate. Yet, historically they have been managed in an ad hoc fashion, using a wide variety of formats (generally non-digital) and scattered across individual project records. The Groundwater Remediation Project is developing an integrated borehole geology data management, analysis, and visualization system to maximize the value of these data. HBGIS (Hanford Borehole Geologic Information System) is a secure online web application designed to connect directly to several existing databases and facilitate data export to a variety of commercially available or specialized data processing applications. Visualization and analysis of multiple borehole geologic data sets in concert with outcrop studies and basin-wide sedimentary geologic modeling provides the foundation for estimating the spatial distribution of lithofacies. Petrophysical and geochemical analyses of samples from key lithofacies provide the data sets with which to derive the parametric probability-distribution functions for the petrophysical and geochemical properties, as well as the spatial correlations (i.e., heterogeneity, anisotropy) within each lithofacies. Thus, by estimating the spatial distribution and the parametric properties within each lithofacies, we have been able to improve the resolution and spatial distribution of critical flow and transport properties at a plutonium and carbon tetrachloride contaminated site. JF - Abstracts with Programs - Geological Society of America AU - Last, George V AU - Murray, Christopher J AU - Rockhold, Mark L AU - Thorne, Paul D AU - Bjornstad, Bruce N AU - Mackley, Robert D AU - Truex, Michael J AU - Oostrom, Mart AU - Anonymous Y1 - 2005/04// PY - 2005 DA - April 2005 SP - 75 EP - 76 PB - Geological Society of America (GSA), Boulder, CO VL - 37 IS - 4 SN - 0016-7592, 0016-7592 KW - United States KW - Washington KW - pollutants KW - pollution KW - Hanford Site KW - information management KW - remediation KW - radioactive waste KW - data management KW - visualization KW - spatial distribution KW - lithofacies KW - boreholes KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51583495?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Lithofacies+mapping+at+the+Hanford+Site%3B+data+management%2C+analysis%2C+and+visualization&rft.au=Last%2C+George+V%3BMurray%2C+Christopher+J%3BRockhold%2C+Mark+L%3BThorne%2C+Paul+D%3BBjornstad%2C+Bruce+N%3BMackley%2C+Robert+D%3BTruex%2C+Michael+J%3BOostrom%2C+Mart%3BAnonymous&rft.aulast=Last&rft.aufirst=George&rft.date=2005-04-01&rft.volume=37&rft.issue=4&rft.spage=75&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Cordilleran Section, 101st annual meeting; American Association of Petroleum Geologists, Pacific Section, 80th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - boreholes; data management; Hanford Site; information management; lithofacies; pollutants; pollution; radioactive waste; remediation; spatial distribution; United States; visualization; Washington; waste disposal ER - TY - JOUR T1 - Cryogenic laser induced U(VI) fluorescence studies of a U(VI) substituted natural calcite; implications to U(VI) speciation in contaminated Hanford sediments AN - 51520456; 2006-089446 JF - Environmental Science & Technology, ES & T AU - Wang, Zheming AU - Zachara, John M AU - McKinley, James P AU - Smith, Steven C Y1 - 2005/04// PY - 2005 DA - April 2005 SP - 2651 EP - 2659 PB - American Chemical Society, Washington, DC VL - 39 IS - 8 SN - 0013-936X, 0013-936X KW - United States KW - solute transport KW - laser methods KW - X-ray diffraction data KW - isotopes KW - environmental analysis KW - ground water KW - electron probe data KW - radioactive isotopes KW - fluorescence KW - movement KW - sediments KW - X-ray fluorescence spectra KW - spectra KW - chemical composition KW - geochemistry KW - pH KW - Washington KW - aragonite KW - pollutants KW - pollution KW - Hanford Site KW - solubility KW - calcite KW - metals KW - uranium KW - carbonates KW - actinides KW - chemical fractionation KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51520456?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Cryogenic+laser+induced+U%28VI%29+fluorescence+studies+of+a+U%28VI%29+substituted+natural+calcite%3B+implications+to+U%28VI%29+speciation+in+contaminated+Hanford+sediments&rft.au=Wang%2C+Zheming%3BZachara%2C+John+M%3BMcKinley%2C+James+P%3BSmith%2C+Steven+C&rft.aulast=Wang&rft.aufirst=Zheming&rft.date=2005-04-01&rft.volume=39&rft.issue=8&rft.spage=2651&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes048448d L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 35 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - actinides; aragonite; calcite; carbonates; chemical composition; chemical fractionation; electron probe data; environmental analysis; fluorescence; geochemistry; ground water; Hanford Site; isotopes; laser methods; metals; movement; pH; pollutants; pollution; radioactive isotopes; sediments; solubility; solute transport; spectra; United States; uranium; Washington; X-ray diffraction data; X-ray fluorescence spectra DO - http://dx.doi.org/10.1021/es048448d ER - TY - JOUR T1 - Conceptual and numerical model of uranium(VI) reductive immobilization fracture subsurface sediments AN - 51499548; 2007-013284 JF - Chemosphere (Oxford) AU - Roden, Eric E AU - Scheibe, Timothy D Y1 - 2005/04// PY - 2005 DA - April 2005 SP - 617 EP - 628 PB - Elsevier VL - 59 IS - 5 SN - 0045-6535, 0045-6535 KW - fractured materials KW - biodegradation KW - desorption KW - numerical models KW - isotopes KW - pollution KW - migration of elements KW - aqueous solutions KW - simulation KW - radioactive isotopes KW - metals KW - bacteria KW - sediments KW - theoretical models KW - uranium KW - reduction KW - U-238 KW - mobility KW - kinetics KW - actinides KW - pore water KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51499548?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere+%28Oxford%29&rft.atitle=Conceptual+and+numerical+model+of+uranium%28VI%29+reductive+immobilization+fracture+subsurface+sediments&rft.au=Roden%2C+Eric+E%3BScheibe%2C+Timothy+D&rft.aulast=Roden&rft.aufirst=Eric&rft.date=2005-04-01&rft.volume=59&rft.issue=5&rft.spage=617&rft.isbn=&rft.btitle=&rft.title=Chemosphere+%28Oxford%29&rft.issn=00456535&rft_id=info:doi/10.1016%2Fj.chemosphere.2004.11.007 L2 - http://www.sciencedirect.com/science/journal/00456535 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 56 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CMSHAF N1 - SubjectsTermNotLitGenreText - actinides; aqueous solutions; bacteria; biodegradation; desorption; fractured materials; isotopes; kinetics; metals; migration of elements; mobility; numerical models; pollution; pore water; radioactive isotopes; reduction; sediments; simulation; theoretical models; U-238; uranium DO - http://dx.doi.org/10.1016/j.chemosphere.2004.11.007 ER - TY - JOUR T1 - Combining capillary electrophoresis with mass spectrometry for applications in proteomics AN - 20638854; 7762267 AB - Mass spectrometry (MS)-based proteomics is currently dominated by the analysis of peptides originating either from digestion of proteins separated by two-dimensional gel electrophoresis (2-DE) or from global digestion; the simple peptide mixtures obtained from digestion of gel-separated proteins do not usually require further separation, while the complex peptide mixtures obtained by global digestion are most frequently separated by chromatographic techniques. Capillary electrophoresis (CE) provides alternatives to 2-DE for protein separation and alternatives to chromatography for peptide separation. This review attempts to elucidate how the most promising CE modes, capillary zone electrophoresis (CZE) and capillary isoelectric focusing (CIEF), might best be applied to MS-based proteomics. CE-MS interfacing, mass analyzer performance, column coating to minimize analyte adsorption, and sample stacking for CZE are considered prior to examining numerous applications. Finally, multidimensional systems that incorporate CE techniques are examined; CZE often finds use as a fast, final dimension before ionization for MS, while CIEF, being an equilibrium technique, is well-suited to being the first dimension in automated fractionation systems. JF - Electrophoresis AU - Simpson, David C AU - Smith, Richard D AD - Pacific Northwest National Laboratory, Richland, WA, USA, rds@pnl.gov Y1 - 2005/04// PY - 2005 DA - Apr 2005 SP - 1291 EP - 1305 PB - Wiley-VCH, Postfach 101161 Weinheim 69451 Germany, [mailto:info@wiley-vch.de], [URL:http://www.wiley-vch.de/publish/en/] VL - 26 IS - 7-8 SN - 0173-0835, 0173-0835 KW - Biotechnology Research Abstracts (through 1992) KW - Chromatography KW - Stacking KW - Isoelectric focusing KW - Gel electrophoresis KW - Mass spectroscopy KW - Digestion KW - Reviews KW - Adsorption KW - capillary electrophoresis KW - proteomics KW - Ionization KW - Coatings KW - W 30900:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20638854?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Electrophoresis&rft.atitle=Combining+capillary+electrophoresis+with+mass+spectrometry+for+applications+in+proteomics&rft.au=Simpson%2C+David+C%3BSmith%2C+Richard+D&rft.aulast=Simpson&rft.aufirst=David&rft.date=2005-04-01&rft.volume=26&rft.issue=7-8&rft.spage=1291&rft.isbn=&rft.btitle=&rft.title=Electrophoresis&rft.issn=01730835&rft_id=info:doi/10.1002%2Felps.200410132 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-12-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Digestion; proteomics; Mass spectroscopy; capillary electrophoresis; Stacking; Reviews; Ionization; Gel electrophoresis; Coatings; Isoelectric focusing; Chromatography; Adsorption DO - http://dx.doi.org/10.1002/elps.200410132 ER - TY - JOUR T1 - Toxicokinetics and Oral Bioavailability of Halogenated Acetic Acids Mixtures in Naive and GSTzeta-Depleted Rats AN - 17816982; 6186991 AB - Disinfection of drinking water typically produces a mixture of mono-, di-, and tri-halogenated acetic acids (HAAs). In this study, we investigated the toxicokinetics of HAA mixtures in naive and glutathione transferase zeta 1 (GSTzeta)-depleted male F344 rats administered orally or iv to Mixture-1 (monobromo [MBAA]-dichloro-[DCAA], chlorodibromo-[CDBAA], tribromo-[TBAA] acetic acids) or Mixture-2 (bromochloro-[BCAA], dibromo-[DBAA], trichloro- [TCAA] bromodichloro-[BDCAA] acetic acids) at a dose of 25 mu mol/kg HAA. Serial blood samples were collected at various times up to 36 h, and the plasma concentrations of each HAA quantified by GC-ECD. Rats were pretreated for 7 d with drinking water containing 0.2 g/l DCAA to deplete the GSTzeta (GSTZ1-1) activity in the liver. An additional group of GSTzeta-depleted rats were orally dosed with each mixture and euthanized at 0.25, 0.5, 1, 2, and 4 h to determine tissue distribution of mixture components. In both mixtures, GSTzeta depletion primarily affected the toxicokinetics of di-HAAs (DCAA, BCAA, and DBAA), with the total body clearance (Cl sub(b)) decreasing 3-to 10-fold. Interestingly, DCAA pretreatment appeared to increase the elimination of Mixture-2 tri-HAAs (TCAA and BDCAA). After oral administration, DCAA exhibited a complex time-course plasma profile with secondary peaks appearing long after completion of the initial absorption phase. This phenomenon coincided with elevated DCA levels in the lower portion of the GI tract compared to CDBAA and TBAA. Comparison of the results with previous studies employing similar or higher doses of individual HAAs indicated the primary difference in HAA toxicokinetics when administered as mixture was a reduction in Cl sub(b). These results suggest competitive interactions between tri-and di-HAAs beyond what would be predicted from individual HAA studies. For di-HAAs, the total dose is important, as clearance is dose dependent due to competition for GSTzeta. When considering HAA dosimetry, importance should be placed on both the components of the mixture and prior exposure history to di-HAAs. JF - Toxicological Sciences AU - Saghir, Shakil A AU - Schultz, Irvin R AD - Battelle Pacific Northwest National Laboratory, Sequim, Washington Y1 - 2005/04// PY - 2005 DA - Apr 2005 SP - 214 EP - 224 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK, [mailto:jnl.samples@oup.co.uk], [URL:http://www3.oup.co.uk/jnls/] VL - 84 IS - 2 SN - 1096-6080, 1096-6080 KW - Toxicology Abstracts KW - Disinfection KW - Bioavailability KW - Dosimetry KW - Liver KW - Oral administration KW - Drinking water KW - Glutathione transferase KW - Acetic acid KW - Competition KW - X 24120:Food, additives & contaminants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17816982?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=Toxicokinetics+and+Oral+Bioavailability+of+Halogenated+Acetic+Acids+Mixtures+in+Naive+and+GSTzeta-Depleted+Rats&rft.au=Saghir%2C+Shakil+A%3BSchultz%2C+Irvin+R&rft.aulast=Saghir&rft.aufirst=Shakil&rft.date=2005-04-01&rft.volume=84&rft.issue=2&rft.spage=214&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Bioavailability; Disinfection; Dosimetry; Oral administration; Liver; Glutathione transferase; Drinking water; Competition; Acetic acid ER - TY - JOUR T1 - Simultaneous Force and Fluorescence Measurements of a Protein That Forms a Bond between a Living Bacterium and a Solid Surface AN - 17619780; 6189722 AB - All microbial biofilms are initiated through direct physical contact between a bacterium and a solid surface, a step that is controlled by inter-and intramolecular forces. Atomic force microscopy and confocal laser scanning microscopy were used simultaneously to observe the formation of a bond between a fluorescent chimeric protein on the surface of a living Escherichia coli bacterium and a solid substrate in situ. The chimera was composed of a portion of outer membrane protein A (OmpA) fused to the cyan-fluorescent protein AmCyan. Sucrose gradient centrifugation and fluorescent confocal slices through bacteria demonstrated that the chimeric protein was targeted and anchored to the external cell surface. The wormlike chain theory predicted that this protein should exhibit a nonlinear force-extension "signature" consistent with the sequential unraveling of the AmCyan and OmpA domains. Experimentally measured force- extension curves revealed a unique pair of "sawtooth" features that were present when a bond formed between a silicon nitride surface (atomic force microscopy tip) and E. coli cells expressing the OmpA-AmCyan protein. The observed sawtooth pair closely matched the wormlike chain model prediction for the mechanical unfolding of the AmCyan and OmpA substructures in series. These sawteeth disappeared from the measured force-extension curves when cells were treated with proteinase K. Furthermore, these unique sawteeth were absent for a mutant stain of E. coli incapable of expressing the AmCyan protein on its outer surface. Together, these data show that specific proteins exhibit unique force signatures characteristic of the bond that is formed between a living bacterium and another surface. JF - Journal of Bacteriology AU - Lower, Brian H AU - Yongsunthon, Ruchirej AU - Vellano, FPaul AU - Lower, Steven K AD - Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington. Ohio State University, Columbus, Ohio Y1 - 2005/03/15/ PY - 2005 DA - 2005 Mar 15 SP - 2127 EP - 2137 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA, [URL:http://www.asm.org/] VL - 187 IS - 6 SN - 0021-9193, 0021-9193 KW - Microbiology Abstracts B: Bacteriology; Genetics Abstracts KW - G 07320:Bacterial genetics KW - J 02722:Biodegradation, growth, nutrition and leaching UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17619780?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Bacteriology&rft.atitle=Simultaneous+Force+and+Fluorescence+Measurements+of+a+Protein+That+Forms+a+Bond+between+a+Living+Bacterium+and+a+Solid+Surface&rft.au=Lower%2C+Brian+H%3BYongsunthon%2C+Ruchirej%3BVellano%2C+FPaul%3BLower%2C+Steven+K&rft.aulast=Lower&rft.aufirst=Brian&rft.date=2005-03-15&rft.volume=187&rft.issue=6&rft.spage=2127&rft.isbn=&rft.btitle=&rft.title=Journal+of+Bacteriology&rft.issn=00219193&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-07-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - An assessment of drinking-water supplies on the Hanford site: an evaluation conducted at a federal nuclear facility in southeastern Washington state. AN - 67566060; 15794463 AB - Drinking water is supplied to most U.S. Department of Energy (DOE) facilities on the Hanford Site by DOE-owned, contractor-operated pumping and distribution systems. Water is primarily obtained from the Columbia River, but some facilities use water from on-site groundwater wells. Because of the large amount of radioactive and chemical waste produced, stored, and disposed of at Hanford, some people are concerned that waste materials are contaminating on-site drinking-water supplies. This paper describes the drinking-water facilities and treatment requirements on the Hanford Site and summarizes radiological and non-radiological water quality data obtained from water samples collected from each drinking-water system in use during 2001 and 2002. Monitoring data show that Hanford-produced radionuclides are measurable in some drinking-water samples. The only non-radiological contaminants detected either were by-products of the chlorination process or came from off-site agricultural activities. Contaminant level values were, in all cases, below state and federal drinking-water limits. This information will provide assurance to current employees and future site developers that drinking water on the Hanford Site is safe for public consumption. JF - Journal of environmental health AU - Hanf, R William AU - Kelly, Lynn M AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA. bill.hanf@pnl.gov Y1 - 2005/03// PY - 2005 DA - March 2005 SP - 44 EP - 49 VL - 67 IS - 7 SN - 0022-0892, 0022-0892 KW - Radioactive Waste KW - 0 KW - Water Pollutants, Radioactive KW - Index Medicus KW - Environmental Monitoring KW - Agriculture KW - Washington KW - Waste Management KW - Humans KW - Water Purification KW - Water Supply -- standards KW - Water Pollutants, Radioactive -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67566060?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+environmental+health&rft.atitle=An+assessment+of+drinking-water+supplies+on+the+Hanford+site%3A+an+evaluation+conducted+at+a+federal+nuclear+facility+in+southeastern+Washington+state.&rft.au=Hanf%2C+R+William%3BKelly%2C+Lynn+M&rft.aulast=Hanf&rft.aufirst=R&rft.date=2005-03-01&rft.volume=67&rft.issue=7&rft.spage=44&rft.isbn=&rft.btitle=&rft.title=Journal+of+environmental+health&rft.issn=00220892&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-06-07 N1 - Date created - 2005-03-29 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Actinide sequestration using self-assembled monolayers on mesoporous supports. AN - 67545636; 15787373 AB - Surfactant templated synthesis of mesoporous ceramics provides a versatile foundation upon which to create high efficiency environmental sorbents. These nanoporous ceramic oxides condense a huge amount of surface area into a very small volume. The ceramic oxide interface is receptive to surface functionalization through molecular self-assembly. The marriage of mesoporous ceramics with self-assembled monolayer chemistry creates a powerful new class of environmental sorbent materials called self-assembled monolayers on mesoporous supports (SAMMS). These SAMMS materials are highly efficient sorbents whose interfacial chemistry can be fine-tuned to selectively sequester a specific target species, such as heavy metals, tetrahedral oxometalate anions, and radionuclides. Details addressing the design, synthesis, and characterization of SAMMS materials specifically designed to sequester actinides, of central importance to the environmental cleanup necessary after 40 years of weapons-grade plutonium production, as well as evaluation of their binding affinities and kinetics are presented. JF - Environmental science & technology AU - Fryxell, Glen E AU - Lin, Yuehe AU - Fiskum, Sandy AU - Birnbaum, Jerome C AU - Wu, Hong AU - Kemner, Ken AU - Kelly, Shelley AD - Materials Synthesis & Modification Group, Pacific Northwest National Laboratory, P.O. Box 999, Mailstop K2-44, Richland, Washington 99352, USA. glen.fryxell@pnl.gov Y1 - 2005/03/01/ PY - 2005 DA - 2005 Mar 01 SP - 1324 EP - 1331 VL - 39 IS - 5 SN - 0013-936X, 0013-936X KW - Actinoid Series Elements KW - 0 KW - Water Pollutants KW - Index Medicus KW - Porosity KW - Adsorption KW - Materials Testing KW - Ceramics KW - Actinoid Series Elements -- chemistry KW - Actinoid Series Elements -- isolation & purification KW - Water Pollutants -- isolation & purification KW - Nanostructures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67545636?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Actinide+sequestration+using+self-assembled+monolayers+on+mesoporous+supports.&rft.au=Fryxell%2C+Glen+E%3BLin%2C+Yuehe%3BFiskum%2C+Sandy%3BBirnbaum%2C+Jerome+C%3BWu%2C+Hong%3BKemner%2C+Ken%3BKelly%2C+Shelley&rft.aulast=Fryxell&rft.aufirst=Glen&rft.date=2005-03-01&rft.volume=39&rft.issue=5&rft.spage=1324&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-06-07 N1 - Date created - 2005-03-24 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Bioreduction of natural specular hematite under flow conditions AN - 51733201; 2005-027001 AB - Dissimilatory reduction of Fe(III) by Shewanella oneidensis MR-1 was evaluated using natural specular hematite as sole electron acceptor in an open system under dynamic flow conditions to obtain a better understanding of biologic Fe(III) reduction in the natural environment. During initial exposure to hematite under advective flow conditions, cells exhibited a transient association with the mineral characterized by a rapid rate of attachment followed by a comparable rate of detachment before entering a phase of surface colonization that was slower but steadier than that observed initially. Accumulation of cells on the hematite surface was accompanied by the release of soluble Fe(II) into the aqueous phase when no precautions were taken to remove amorphous Fe(III) from the mineral surface before colonization. During the period of surface colonization following the detachment phase, cell yield was estimated at 1.5-4X10 (super 7) cells/mu mol Fe(II) produced, which is similar to that reported in studies conducted in closed systems. This yield does not take into account those cells that detached during this phase or the Fe(II) that remained associated with the hematite surface. Hematite reduction by the bacterium led to localized surface pitting and localized discrete areas where Fe (II) precipitation occurred. The cleavage plane of hematite left behind after bacterial reduction, as revealed by our results, strongly suggests, that heterogeneous energetics of the mineral surface play a strong role in this bioprocess. AQDS, an electron shuttle shown to stimulate bioreduction of Fe(III) in other studies, inhibited reduction of hematite by this bacterium under the dynamic flow conditions employed in the current study. JF - Geochimica et Cosmochimica Acta AU - Gonzalez-Gil, G AU - Amonette, J E AU - Romine, M F AU - Gorby, Y A AU - Geesey, G G Y1 - 2005/03// PY - 2005 DA - March 2005 SP - 1145 EP - 1155 PB - Pergamon, Oxford VL - 69 IS - 5 SN - 0016-7037, 0016-7037 KW - respiration KW - Shewanella KW - iron KW - remediation KW - hematite KW - Shewanella oneidensis KW - movement KW - oxides KW - spectra KW - reduction KW - geochemistry KW - pollutants KW - biochemistry KW - pollution KW - solubility KW - bioremediation KW - X-ray spectra KW - specularite KW - biogenic processes KW - precipitation KW - microscope methods KW - metals KW - bacteria KW - synchrotrons KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51733201?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Bioreduction+of+natural+specular+hematite+under+flow+conditions&rft.au=Gonzalez-Gil%2C+G%3BAmonette%2C+J+E%3BRomine%2C+M+F%3BGorby%2C+Y+A%3BGeesey%2C+G+G&rft.aulast=Gonzalez-Gil&rft.aufirst=G&rft.date=2005-03-01&rft.volume=69&rft.issue=5&rft.spage=1145&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2004.08.014 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 45 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - bacteria; biochemistry; biogenic processes; bioremediation; geochemistry; hematite; iron; metals; microscope methods; movement; oxides; pollutants; pollution; precipitation; reduction; remediation; respiration; Shewanella; Shewanella oneidensis; solubility; spectra; specularite; synchrotrons; X-ray spectra DO - http://dx.doi.org/10.1016/j.gca.2004.08.014 ER - TY - JOUR T1 - Ferrous hydroxy carbonate is a stable transformation product of biogenic magnetite AN - 51725272; 2005-030928 AB - An approximately 1:1 mixture of ferrihydrite and nanocrystalline akaganeite was incubated with Shewanella putrefaciens (strain CN32) under anoxic conditions with lactate as an electron donor and anthraquinone-2,6-disulphonate (AQDS) as an electron shuttle. The biogenic reduction of Fe (super 3+) was rapid, with 60 % of the total Fe reduced in 1 day; only an additional 10 % of Fe (sub TOT) was reduced over the next 3 years. A fine-grained ( approximately 10 nm) cation excess magnetite with a Fe (super 2+) /Fe (sub TOT) ratio of 0.5-0.6 was the only biogenic product after 1 day of incubation. This magnetite was unstable and partially transformed to micrmetre-sized ferrous hydroxy carbonate, a rosasite-type mineral, with time. Ferrous hydroxy carbonate eventually dominated the mineral composition of the 3-year incubated sample. JF - American Mineralogist AU - Kukkadapu, Ravi K AU - Zachara, John M AU - Fredrickson, James K AU - Kennedy, David W AU - Dohnalkova, Alice C AU - McCready, David E Y1 - 2005/03// PY - 2005 DA - March 2005 SP - 510 EP - 515 PB - Mineralogical Society of America, Washington, DC VL - 90 IS - 2-3 SN - 0003-004X, 0003-004X KW - X-ray diffraction data KW - geomicrobiology KW - Shewanella putrefaciens KW - biogenic processes KW - bacteria KW - oxides KW - spectra KW - transformations KW - carbonates KW - SEM data KW - Mossbauer spectra KW - microorganisms KW - magnetite KW - 01A:General mineralogy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51725272?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Ferrous+hydroxy+carbonate+is+a+stable+transformation+product+of+biogenic+magnetite&rft.au=Kukkadapu%2C+Ravi+K%3BZachara%2C+John+M%3BFredrickson%2C+James+K%3BKennedy%2C+David+W%3BDohnalkova%2C+Alice+C%3BMcCready%2C+David+E&rft.aulast=Kukkadapu&rft.aufirst=Ravi&rft.date=2005-03-01&rft.volume=90&rft.issue=2-3&rft.spage=510&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam.2005.1727 L2 - http://ammin.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 2005-01-01 N1 - Number of references - 36 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - bacteria; biogenic processes; carbonates; geomicrobiology; magnetite; microorganisms; Mossbauer spectra; oxides; SEM data; Shewanella putrefaciens; spectra; transformations; X-ray diffraction data DO - http://dx.doi.org/10.2138/am.2005.1727 ER - TY - JOUR T1 - Fluorescence spectroscopy of U(VI)-silicates and U(VI)-contaminated Hanford sediment AN - 51620325; 2006-022138 AB - Time-resolved U(VI) laser fluorescence spectra (TRLFS) were recorded for a series of natural uranium-silicate minerals including boltwoodite, uranophane, soddyite, kasolite, sklodowskite, cuprosklodowskite, haiweeite, and weeksite, a synthetic boltwoodite, and four U(VI)-contaminated Hanford vadose zone sediments. Lowering the sample temperature from RT to approximately 5.5 K significantly enhanced the fluorescence intensity and spectral resolution of both the minerals and sediments, offering improved possibilities for identifying uranyl species in environmental samples. At 5.5 K, all of the uranyl silicates showed unique, well-resolved fluorescence spectra. The symmetric O = U = O stretching frequency, as determined from the peak spacing of the vibronic bands in the emission spectra, were between 705 to 823 cm (super 1) for the uranyl silicates. These were lower than those reported for uranyl phosphate, carbonate, or oxy-hydroxides. The fluorescence emission spectra of all four sediment samples were similar to each other. Their spectra shifted minimally at different time delays or upon contact with basic Na/Ca-carbonate electrolyte solutions that dissolved up to 60% of the precipitated U(VI) pool. The well-resolved vibronic peaks in the fluorescence spectra of the sediments indicated that the major fluorescence species was a crystalline uranyl mineral phase, while the peak spacing of the vibronic bands pointed to the likely presence of uranyl silicate. Although an exact match was not found between the U(VI) fluorescence spectra of the sediments with that of any individual uranyl silicates, the major spectral characteristics indicated that the sediment U(VI) was a uranophane-type solid (uranophane, boltwoodite) or soddyite, as was concluded from microprobe, EXAFS, and solubility analyses. JF - Geochimica et Cosmochimica Acta AU - Wang, Zheming AU - Zachara, John M AU - Gassman, Paul L AU - Liu, Chongxuan AU - Qafoku, Odeta AU - Yantasee, Wassana AU - Catalano, Jeffrey G Y1 - 2005/03// PY - 2005 DA - March 2005 SP - 1391 EP - 1403 PB - Pergamon, Oxford VL - 69 IS - 6 SN - 0016-7037, 0016-7037 KW - United States KW - silicates KW - laser methods KW - X-ray diffraction data KW - isotopes KW - unsaturated zone KW - temperature KW - radioactive isotopes KW - sediments KW - orthosilicates KW - X-ray fluorescence spectra KW - oxides KW - spectra KW - mineral assemblages KW - chemical composition KW - geochemistry KW - chemical ratios KW - soils KW - Washington KW - pollutants KW - pollution KW - Hanford Site KW - migration of elements KW - kasolite KW - nesosilicates KW - dissolved materials KW - precipitation KW - metals KW - EXAFS data KW - uranium KW - mobilization KW - U-238 KW - uranophane KW - carbonates KW - actinides KW - SEM data KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51620325?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Fluorescence+spectroscopy+of+U%28VI%29-silicates+and+U%28VI%29-contaminated+Hanford+sediment&rft.au=Wang%2C+Zheming%3BZachara%2C+John+M%3BGassman%2C+Paul+L%3BLiu%2C+Chongxuan%3BQafoku%2C+Odeta%3BYantasee%2C+Wassana%3BCatalano%2C+Jeffrey+G&rft.aulast=Wang&rft.aufirst=Zheming&rft.date=2005-03-01&rft.volume=69&rft.issue=6&rft.spage=1391&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2004.08.028 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2006-01-01 N1 - Number of references - 68 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; carbonates; chemical composition; chemical ratios; dissolved materials; EXAFS data; geochemistry; Hanford Site; isotopes; kasolite; laser methods; metals; migration of elements; mineral assemblages; mobilization; nesosilicates; orthosilicates; oxides; pollutants; pollution; precipitation; radioactive isotopes; sediments; SEM data; silicates; soils; spectra; temperature; U-238; United States; unsaturated zone; uranium; uranophane; Washington; X-ray diffraction data; X-ray fluorescence spectra DO - http://dx.doi.org/10.1016/j.gca.2004.08.028 ER - TY - JOUR T1 - The influence of edge sites on the development of surface charge on goethite nanoparticles, a molecular dynamics investigation AN - 51619700; 2006-022139 AB - Large-scale molecular simulation of proton accumulations were carried out on (i) (110) and (021) slabs immersed in aqueous solution and (ii) a series of model goethite nanoparticles of dimension 2 to 8 nm with systematically varying acicularity and (110)/(021) surface areas. In the slab systems, the (021) surface exhibits 15% more proton charge per unit area than the (110) surface. In the particulate systems, the acicular particles having the highest (110)/(021) ratio accumulate the most charge, opposite to the trend expected from the slab simulations, indicating that, at length scales on the order of 10 nm, the slab results are not a good indicator of the overall charging behavior of the particles. The primary reason for the discrepancy between the particulate systems and slab systems is the preferential accumulation of protons at acute (110)-(110) intersections. Charge accumulates preferentially in this region because excess proton charge at an asperity is more effectively solvated than at a flat interface. JF - Geochimica et Cosmochimica Acta AU - Rustad, James R AU - Felmy, Andrew R Y1 - 2005/03// PY - 2005 DA - March 2005 SP - 1405 EP - 1411 PB - Pergamon, Oxford VL - 69 IS - 6 SN - 0016-7037, 0016-7037 KW - surface properties KW - goethite KW - properties KW - aqueous solutions KW - protons KW - simulation KW - molecular structure KW - chemical reactions KW - oxides KW - molecular dynamics KW - chemical composition KW - nanoparticles KW - mobility KW - geochemistry KW - particles KW - Eh KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51619700?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=The+influence+of+edge+sites+on+the+development+of+surface+charge+on+goethite+nanoparticles%2C+a+molecular+dynamics+investigation&rft.au=Rustad%2C+James+R%3BFelmy%2C+Andrew+R&rft.aulast=Rustad&rft.aufirst=James&rft.date=2005-03-01&rft.volume=69&rft.issue=6&rft.spage=1405&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2004.08.030 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2006-01-01 N1 - Number of references - 47 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aqueous solutions; chemical composition; chemical reactions; Eh; geochemistry; goethite; mobility; molecular dynamics; molecular structure; nanoparticles; oxides; particles; properties; protons; simulation; surface properties DO - http://dx.doi.org/10.1016/j.gca.2004.08.030 ER - TY - JOUR T1 - Role of Sampling Designs in Obtaining Representative Data AN - 16193822; 6227238 AB - Representative environmental data are necessary to make defensible environmental decisions. Representative data can be obtained using unbiased sampling designs developed in the context of the project to achieve sampling objectives with required confidence and minimal cost. This article stresses the importance of systematic planning and an adequate conceptual site model to develop an appropriate sampling design. Various sampling designs are discussed and examples are used to illustrate sampling designs for various sampling objectives. JF - Environmental Forensics AU - Gilbert, RO AU - Pulsipher, BA AD - Pacific Northwest National Laboratory, Rockville, MD, USA Y1 - 2005/03// PY - 2005 DA - Mar 2005 SP - 27 EP - 33 VL - 6 IS - 1 SN - 1527-5922, 1527-5922 KW - Pollution Abstracts KW - Data collection KW - Environmental information KW - Quality control KW - decision making KW - Sampling methods KW - P 9000:ENVIRONMENTAL ACTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16193822?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Forensics&rft.atitle=Role+of+Sampling+Designs+in+Obtaining+Representative+Data&rft.au=Gilbert%2C+RO%3BPulsipher%2C+BA&rft.aulast=Gilbert&rft.aufirst=RO&rft.date=2005-03-01&rft.volume=6&rft.issue=1&rft.spage=27&rft.isbn=&rft.btitle=&rft.title=Environmental+Forensics&rft.issn=15275922&rft_id=info:doi/10.1080%2F15275920590913895 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-06-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Environmental information; Data collection; Quality control; decision making; Sampling methods DO - http://dx.doi.org/10.1080/15275920590913895 ER - TY - JOUR T1 - Income and Pollutant Emissions in the ObjECTS MiniCAM Model AN - 16191396; 6177053 AB - This article examines the relationship between income and pollutant emissions in the O super(bj)ECTS Mini Climate Assessment Model (MiniCAM) to determine how historical analysis can best guide modeling efforts. Future scenarios for energy-related emissions of nitrous oxide (NO sub(x)) and sulfur dioxide (SO sub(2))are presented along with the methodology used. A pseudo-Kuznets approach is used where the level of emission control is assumed to vary with per capita income. Emission results depend on the assumptions for when emission controls are implemented and the stringency of those controls. Historical analysis of the relationship between income and emission controls might be particularly useful in informing the parameterization of when emission controls are implemented. However, historical analysis is likely to be less helpful in informing the selection of parameters for the future levels of control, particularly at future times when parameter values are well outside the range of historical experience. JF - Journal of Environment and Development AU - Smith, Steven J AD - Joint Global Change Research Institute (Pacific Northwest National Laboratory [PNNL] and the University of Maryland) Y1 - 2005/03// PY - 2005 DA - Mar 2005 SP - 175 EP - 196 PB - Sage Publications, Inc., 2455 Teller Road Thousand Oaks CA 91320 USA, [mailto:info@sagepub.com], [URL:http://www.sagepub.com/] VL - 14 IS - 1 SN - 1070-4965, 1070-4965 KW - Sustainability Science Abstracts; Pollution Abstracts KW - Historical account KW - Sulfur dioxide KW - Nitrous oxide KW - Climate KW - Socioeconomics KW - Emission control KW - Air pollution control KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16191396?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environment+and+Development&rft.atitle=Income+and+Pollutant+Emissions+in+the+ObjECTS+MiniCAM+Model&rft.au=Smith%2C+Steven+J&rft.aulast=Smith&rft.aufirst=Steven&rft.date=2005-03-01&rft.volume=14&rft.issue=1&rft.spage=175&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environment+and+Development&rft.issn=10704965&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-07-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Historical account; Sulfur dioxide; Nitrous oxide; Climate; Socioeconomics; Air pollution control; Emission control ER - TY - JOUR T1 - The catalytic chemistry of HCN + NO2 over Na- and Ba-Y,FAU: an in situ FTIR and TPD/TPR study. AN - 70175169; 16851119 AB - The adsorption of HCN and the reaction of HCN with NO(2) over Na-, and Ba-Y,FAU zeolite catalysts were investigated using in situ FTIR and TPD/TPR spectroscopies. Both catalysts adsorb HCN molecularly at room temperature, and the strength of adsorption is higher over Ba-Y than Na-Y. Over Na-Y, the reaction between HCN and NO(2) is slow at 473 K. On Ba-Y, HCN reacts readily with NO(2) at 473K, forming N(2), CO, CO(2), HNCO, NO, N(2)O, and C(2)N(2). The results of this investigation suggest that initial step in the HCN + NO(2) reaction over these catalysts is the hydrogen abstraction from HCN, and the formation of ionic CN- and NC- species. The formation of N(2) can proceed directly from these ionic species upon their interaction with NO+. Alternatively, these cyanide species can be oxidized to isocyanates which then can be further transformed to N(2), N(2)O and CO(x) in their subsequent reaction with NO(x). JF - The journal of physical chemistry. B AU - Szanyi, János AU - Kwak, Ja Hun AU - Peden, Charles H F AD - Chemical Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, MSIN K8-93, Richland, WA 99352, USA. janos.szanyi@pnl.gov Y1 - 2005/02/03/ PY - 2005 DA - 2005 Feb 03 SP - 1481 EP - 1490 VL - 109 IS - 4 SN - 1520-6106, 1520-6106 KW - Nitrogen Oxides KW - 0 KW - Zeolites KW - 1318-02-1 KW - Barium KW - 24GP945V5T KW - Hydrogen Cyanide KW - 2WTB3V159F KW - Sodium KW - 9NEZ333N27 KW - Index Medicus KW - Sensitivity and Specificity KW - Spectroscopy, Fourier Transform Infrared KW - Temperature KW - Adsorption KW - Surface Properties KW - Catalysis KW - Zeolites -- chemistry KW - Hydrogen Cyanide -- chemistry KW - Barium -- chemistry KW - Nitrogen Oxides -- chemistry KW - Sodium -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70175169?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+journal+of+physical+chemistry.+B&rft.atitle=The+catalytic+chemistry+of+HCN+%2B+NO2+over+Na-+and+Ba-Y%2CFAU%3A+an+in+situ+FTIR+and+TPD%2FTPR+study.&rft.au=Szanyi%2C+J%C3%A1nos%3BKwak%2C+Ja+Hun%3BPeden%2C+Charles+H+F&rft.aulast=Szanyi&rft.aufirst=J%C3%A1nos&rft.date=2005-02-03&rft.volume=109&rft.issue=4&rft.spage=1481&rft.isbn=&rft.btitle=&rft.title=The+journal+of+physical+chemistry.+B&rft.issn=15206106&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2007-06-29 N1 - Date created - 2006-07-20 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Painting a picture of gas hydrate distribution with thermal images AN - 51677567; 2005-066193 JF - Geophysical Research Letters AU - Weinberg, Jill L AU - Brown, Kevin M AU - Long, Philip E Y1 - 2005/02// PY - 2005 DA - February 2005 SP - 4 PB - American Geophysical Union, Washington, DC VL - 32 IS - 4 SN - 0094-8276, 0094-8276 KW - imagery KW - Northeast Pacific KW - gas hydrates KW - cores KW - temperature KW - ODP Site 1248 KW - spatial distribution KW - fractures KW - marine sediments KW - infrared methods KW - thermal anomalies KW - sediments KW - ODP Site 1242 KW - Leg 202 KW - ODP Site 1244 KW - ocean floors KW - Leg 204 KW - Leg 205 KW - ODP Site 1246 KW - East Pacific KW - diffusion KW - geophysical methods KW - Hydrate Ridge KW - lithofacies KW - North Pacific KW - Pacific Ocean KW - ODP Site 1254 KW - Ocean Drilling Program KW - ODP Site 1252 KW - ODP Site 1250 KW - mid-ocean ridges KW - 20:Applied geophysics KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51677567?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Painting+a+picture+of+gas+hydrate+distribution+with+thermal+images&rft.au=Weinberg%2C+Jill+L%3BBrown%2C+Kevin+M%3BLong%2C+Philip+E&rft.aulast=Weinberg&rft.aufirst=Jill&rft.date=2005-02-01&rft.volume=32&rft.issue=4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2004GL021437 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 29 N1 - PubXState - DC N1 - Document feature - illus. incl. geol. sketch map, sect. N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - cores; diffusion; East Pacific; fractures; gas hydrates; geophysical methods; Hydrate Ridge; imagery; infrared methods; Leg 202; Leg 204; Leg 205; lithofacies; marine sediments; mid-ocean ridges; North Pacific; Northeast Pacific; Ocean Drilling Program; ocean floors; ODP Site 1242; ODP Site 1244; ODP Site 1246; ODP Site 1248; ODP Site 1250; ODP Site 1252; ODP Site 1254; Pacific Ocean; sediments; spatial distribution; temperature; thermal anomalies DO - http://dx.doi.org/10.1029/2004GL021437 ER - TY - JOUR T1 - Comparative proteome analyses of human plasma following in vivo lipopolysaccharide administration using multidimensional separations coupled with tandem mass spectrometry AN - 20739963; 6152882 AB - There is significant interest in characterization of the human plasma proteome due to its potential for providing biomarkers applicable to clinical diagnosis and treatment and for gaining a better understanding of human diseases. We describe here a strategy for comparative proteome analyses of human plasma, which is applicable to biomarker identifications for various disease states. Multidimensional liquid chromatography-mass spectrometry (LC-MS/MS) has been applied to make comparative proteome analyses of plasma samples from an individual prior to and 9 h after lipopolysaccharide (LPS) administration. Peptide peak areas and the number of peptide identifications for each protein were used to evaluate the reproducibility of LC-MS/MS and to compare relative changes in protein concentration between the samples following LPS treatment. A total of 804 distinct plasma proteins (not including immunoglobulins) were confidently identified with 32 proteins observed to be significantly increased in concentration following LPS administration, including several known inflammatory response or acute-phase mediators such as C-reactive protein, serum amyloid A and A2, LPS-binding protein, LPS-responsive and beige-like anchor protein, hepatocyte growth factor activator, and von Willebrand factor, and thus, constituting potential biomarkers for inflammatory response.[comp] JF - Proteomics AU - Qian, Wei-Jun AU - Jacobs, Jon M AU - Camp II, David G AU - Monroe, Matthew E AU - Moore, Ronald J AU - Gritsenko, Marina A AU - Calvano, Steve E AU - Lowry, Stephen F AU - Xiao, Wenzhong AU - Moldawer, Lyle L AU - Davis, Ronald W AU - Tompkins, Ronald G AU - Smith, Richard D AD - Biological Sciences Division and Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, rds@pnl.gov Y1 - 2005/02// PY - 2005 DA - Feb 2005 PB - Wiley-VCH, Postfach 101161 Weinheim 69451 Germany, [mailto:info@wiley-vch.de], [URL:http://www.wiley-vch.de/publish/en/] VL - 5 IS - 2 SN - 1615-9853, 1615-9853 KW - Biotechnology and Bioengineering Abstracts KW - Comparative analysis KW - Human plasma KW - Lipopolysaccharide KW - Liquid chromatography-tandem mass spectrometry KW - Von Willebrand factor KW - biomarkers KW - Mass spectroscopy KW - Spectrometry KW - Inflammation KW - Plasma proteins KW - LPS-binding protein KW - Lipopolysaccharides KW - proteomics KW - Hepatocyte growth factor KW - Immunoglobulins KW - Amyloid KW - C-reactive protein KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20739963?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proteomics&rft.atitle=Comparative+proteome+analyses+of+human+plasma+following+in+vivo+lipopolysaccharide+administration+using+multidimensional+separations+coupled+with+tandem+mass+spectrometry&rft.au=Qian%2C+Wei-Jun%3BJacobs%2C+Jon+M%3BCamp+II%2C+David+G%3BMonroe%2C+Matthew+E%3BMoore%2C+Ronald+J%3BGritsenko%2C+Marina+A%3BCalvano%2C+Steve+E%3BLowry%2C+Stephen+F%3BXiao%2C+Wenzhong%3BMoldawer%2C+Lyle+L%3BDavis%2C+Ronald+W%3BTompkins%2C+Ronald+G%3BSmith%2C+Richard+D&rft.aulast=Qian&rft.aufirst=Wei-Jun&rft.date=2005-02-01&rft.volume=5&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proteomics&rft.issn=16159853&rft_id=info:doi/10.1002%2Fpmic.200400942 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-07-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Von Willebrand factor; biomarkers; Mass spectroscopy; Inflammation; Spectrometry; Plasma proteins; LPS-binding protein; Lipopolysaccharides; proteomics; Hepatocyte growth factor; C-reactive protein; Amyloid; Immunoglobulins DO - http://dx.doi.org/10.1002/pmic.200400942 ER - TY - JOUR T1 - Cerenkov Counter for In-Situ Groundwater Monitoring of super(90)Sr AN - 19563839; 8805464 AB - Groundwater contamination from super(90)Sr is an environmental challenge posed topresent and former nuclear weapons related sites. Traditional methods of extractinggroundwater samples and performing laboratory analyses are expensive, time-consumingand induce significant disposal challenges. The authors present here a prototype countercapable of measuring super(90)Sr groundwater concentrations in-situ at or below the drinking waterlimit of 8 pCl/liter. The super(90)Y daughter of super(90)Sr produces high-energy electrons, which cancreate Cerenkov light Photomultiplier tubes convert the Cerenkov light into an electronicpulse, which then undergoes signal processing with standard electronics. Strontium-90concentrations near the drinking water limit can be measured in a matter of hours if it is insecular equilibrium with the super(90)Y daughter. The prototype counter is compact, can bedeployed in an American Standard 6-inch, well while operated by a single person, andtransmits the results to a central monitoring location. JF - Sensors AU - Runkle, R C AU - Brodzinski, R L AU - Jordan, D V AU - Hartman, J S AU - Hensley, W K AU - Maynard, MA AU - Sliger, WA AU - Smart, JE AU - Todd, L C AD - Pacific Northwest National Laboratory, 902 Battelle Boulevard, P.O. Box 999, Richland, WA, 99352, USA, robert.runkle@pnl.gov Y1 - 2005/02// PY - 2005 DA - Feb 2005 SP - 51 EP - 60 VL - 5 IS - 1 SN - 1424-8220, 1424-8220 KW - Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Sensors KW - Prototypes KW - prototypes KW - Nuclear weapons KW - Groundwater Pollution KW - Tubes KW - Drinking Water KW - Laboratories KW - Weapons KW - Radioisotopes KW - Groundwater pollution KW - Strontium KW - Standards KW - Drinking water KW - Monitoring KW - Groundwater KW - P 2000:FRESHWATER POLLUTION KW - SW 3060:Water treatment and distribution KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19563839?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Sensors&rft.atitle=Cerenkov+Counter+for+In-Situ+Groundwater+Monitoring+of+super%2890%29Sr&rft.au=Runkle%2C+R+C%3BBrodzinski%2C+R+L%3BJordan%2C+D+V%3BHartman%2C+J+S%3BHensley%2C+W+K%3BMaynard%2C+MA%3BSliger%2C+WA%3BSmart%2C+JE%3BTodd%2C+L+C&rft.aulast=Runkle&rft.aufirst=R&rft.date=2005-02-01&rft.volume=5&rft.issue=1&rft.spage=51&rft.isbn=&rft.btitle=&rft.title=Sensors&rft.issn=14248220&rft_id=info:doi/10.3390%2Fs5010051 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-12-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Groundwater; Monitoring; Standards; Prototypes; Drinking Water; Laboratories; Tubes; Groundwater Pollution; Sensors; Strontium; Radioisotopes; prototypes; Nuclear weapons; Drinking water; Weapons; Groundwater pollution DO - http://dx.doi.org/10.3390/s5010051 ER - TY - JOUR T1 - Boundary-layer evolution over Phoenix, Arizona and the premature mixing of pollutants in the early morning AN - 16195951; 6138140 AB - The 2001 Phoenix Sunrise campaign was a field measurement program to investigate the early morning chemical and meteorological processes associated with the development of ozone pollution in Phoenix, Arizona. As part of that study, atmospheric structure was measured using wind profiling radars, sodars, and radiosondes at several locations in the Phoenix metropolitan area. Chemical measurements made by other investigators showed that vertical mixing of pollutants began prior to sunrise on a number of occasions. This was surprising, since we expected sustained mixing to occur only after sunrise and the onset of solar heating. We have used the meteorological measurements to identify a density current that commonly arrives in downtown Phoenix in the hour or two before sunrise when conditions are undisturbed. Both winds and cold advection associated with this feature act to destabilize the lower atmosphere, and the resulting mixing continues through the morning transition to convective conditions. Because photochemical production of ozone is non-linearly dependent on the concentrations of precursor species, this early mixing will need to be properly represented in combined meteorological and chemical models if they are to be fully successful in simulating ozone concentrations. JF - Atmospheric Environment AU - Shaw, W J AU - Doran, J C AU - Coulter, R L AD - Pacific Northwest National Laboratory, P.O. Box 999, MS K9-30, Richland, WA 99352, USA, will.shaw@pnl.gov Y1 - 2005/02// PY - 2005 DA - Feb 2005 SP - 773 EP - 786 PB - Elsevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl/] VL - 39 IS - 4 SN - 1352-2310, 1352-2310 KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - Boundary layer KW - Complex terrain KW - Density current KW - Ozone KW - Air pollution KW - Pollution monitoring KW - Atmospheric pollution variations KW - Atmospheric pollution models KW - Density currents KW - Photochemical ozone production KW - Advection KW - Chemical speciation KW - Ozone concentration KW - Meteorology KW - Wind KW - Urban areas KW - Solar heating KW - Diurnal variations KW - Radar wind measurements KW - Meteorological measurements KW - Photochemicals KW - Atmospheric mixing KW - Radar KW - Atmospheric chemistry KW - Meteorological processes KW - USA, Arizona KW - Atmospheric structure KW - Evolution KW - USA, Arizona, Phoenix KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16195951?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Boundary-layer+evolution+over+Phoenix%2C+Arizona+and+the+premature+mixing+of+pollutants+in+the+early+morning&rft.au=Shaw%2C+W+J%3BDoran%2C+J+C%3BCoulter%2C+R+L&rft.aulast=Shaw&rft.aufirst=W&rft.date=2005-02-01&rft.volume=39&rft.issue=4&rft.spage=773&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2Fj.atmosenv.2004.08.055 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-04-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Diurnal variations; Atmospheric pollution variations; Solar heating; Atmospheric pollution models; Radar wind measurements; Photochemical ozone production; Density currents; Advection; Meteorological measurements; Atmospheric mixing; Meteorological processes; Ozone concentration; Atmospheric structure; Evolution; Pollution monitoring; Photochemicals; Chemical speciation; Atmospheric chemistry; Radar; Meteorology; Wind; Ozone; Urban areas; USA, Arizona; USA, Arizona, Phoenix DO - http://dx.doi.org/10.1016/j.atmosenv.2004.08.055 ER - TY - JOUR T1 - Vadose zone modeling of dispersed waste sites in the framework of an integrated stochastic environmental transport and impacts assessment code for the Hanford Site AN - 16190096; 6248476 AB - The system assessment capability (SAC) is the first total-system stochastic simulator to address inventory distribution, environmental release and transport, and impacts to human health and ecological, economic, and cultural resources from hundreds of radiological and chemical waste disposal sites for the entire Hanford Site in southeast Washington State. Flow and contaminant transport modeling in the vadose zone at 720 individual sites has been integrated into the SAC stochastic software framework using the STOMP code, providing the means to define release to the regional aquifer to support the SAC groundwater transport model. Important features, events, and processes including remedial actions, time-variant natural infiltration rates, and high volume aqueous-phase discharges were addressed in the software and data. A separate data extraction program, VZGRAB, was developed to enable analysts to aggregate vadose zone release data across the hundreds of waste sites in various ways following a SAC simulation to develop an improved understanding of the system performance and uncertainty aspects. JF - Stochastic Environmental Research and Risk Assessment AU - Nichols, W E AU - Last, G V AU - Kincaid, C T AD - Pacific Northwest National Laboratory, P.O. Box 999, MSIN K9-33, Richland, WA 99352, USA, will.nichols@pnl.gov Y1 - 2005/02// PY - 2005 DA - Feb 2005 SP - 24 EP - 32 VL - 19 IS - 1 SN - 1436-3240, 1436-3240 KW - Risk Abstracts; Pollution Abstracts KW - Aquifers KW - Risk assessment KW - Radioactive wastes KW - Simulation KW - Vadose zone KW - USA, Washington, Hanford Site KW - Computer programs KW - Economics KW - Waste disposal sites KW - Infiltration KW - Chemical wastes KW - Groundwater pollution KW - R2 23020:Technological risks KW - P 8000:RADIATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16190096?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Stochastic+Environmental+Research+and+Risk+Assessment&rft.atitle=Vadose+zone+modeling+of+dispersed+waste+sites+in+the+framework+of+an+integrated+stochastic+environmental+transport+and+impacts+assessment+code+for+the+Hanford+Site&rft.au=Nichols%2C+W+E%3BLast%2C+G+V%3BKincaid%2C+C+T&rft.aulast=Nichols&rft.aufirst=W&rft.date=2005-02-01&rft.volume=19&rft.issue=1&rft.spage=24&rft.isbn=&rft.btitle=&rft.title=Stochastic+Environmental+Research+and+Risk+Assessment&rft.issn=14363240&rft_id=info:doi/10.1007%2Fs00477-004-0201-9 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-07-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Risk assessment; Aquifers; Computer programs; Waste disposal sites; Economics; Radioactive wastes; Chemical wastes; Infiltration; Groundwater pollution; Simulation; Vadose zone; USA, Washington, Hanford Site DO - http://dx.doi.org/10.1007/s00477-004-0201-9 ER - TY - JOUR T1 - Dynamic motion of helix A in the amino-terminal domain of calmodulin is stabilized upon calcium activation. AN - 67381505; 15654746 AB - Calcium-dependent changes in the internal dynamics and average structures of the opposing globular domains of calmodulin (CaM), as well as their relative spatial arrangement, contribute to the productive association between CaM and a range of different target proteins, affecting their functional activation. To identify dynamic structural changes involving individual alpha-helical elements and their modulation by calcium activation, we have used site-directed mutagenesis to engineer a tetracysteine binding motif within helix A near the amino terminus of calmodulin (CaM), permitting the selective and rigid attachment of the fluorescent probe 4',5'-bis(1,3,2-dithioarsolan-2-yl)fluorescein (FlAsH) with full retention of function. The rigid tetracoordinate linkage of FlAsH to CaM, in conjunction with frequency domain fluorescence anisotropy measurements, allows assessment of dynamic changes associated with calcium activation without interference from independent probe motion. Taking advantage of the large fluorescence enhancement associated with binding of FlAsH to CaM, we determined rates of binding of FlAsH to apo-CaM and calcium-activated CaM to be 2800 +/- 80 and 310 +/- 10 M(-)(1) s(-)(1), respectively. There is no difference in the solvent accessibility of the bound FlAsH irrespective of calcium binding to CaM. Thus, given that FlAsH selectively labels disordered structures, the large difference in rates of FlAsH binding indicates that calcium binding stabilizes helix A. Frequency domain anisotropy measurements of bound FlAsH indicate that prior to calcium activation, helix A undergoes large amplitude nanosecond motions. Following calcium activation, helix A becomes immobile, and structurally coupled to the overall rotation of CaM. We discuss these results in the context of a model that suggests stabilization of helix A relative to other domain elements in the CaM structure is critical to defining high-affinity binding clefts, and in promoting specific and ordered binding of the opposing lobes of CaM to target proteins. JF - Biochemistry AU - Chen, Baowei AU - Mayer, M Uljana AU - Markillie, Lye Meng AU - Stenoien, David L AU - Squier, Thomas C AD - Cell Biology and Biochemistry Group, Biological Sciences Division, Fundamental Sciences Directorate, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, USA. Y1 - 2005/01/25/ PY - 2005 DA - 2005 Jan 25 SP - 905 EP - 914 VL - 44 IS - 3 SN - 0006-2960, 0006-2960 KW - 4',5'-bis(1,3,2-dithioarsolan-2-yl)fluorescein KW - 0 KW - Calmodulin KW - DNA Primers KW - Fluoresceins KW - Fluorescent Dyes KW - Organometallic Compounds KW - Calcium KW - SY7Q814VUP KW - Index Medicus KW - Mutagenesis, Site-Directed KW - Base Sequence KW - Fluorescence Polarization KW - Protein Conformation KW - Calmodulin -- metabolism KW - Calcium -- metabolism KW - Calmodulin -- chemistry KW - Calmodulin -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67381505?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry&rft.atitle=Dynamic+motion+of+helix+A+in+the+amino-terminal+domain+of+calmodulin+is+stabilized+upon+calcium+activation.&rft.au=Chen%2C+Baowei%3BMayer%2C+M+Uljana%3BMarkillie%2C+Lye+Meng%3BStenoien%2C+David+L%3BSquier%2C+Thomas+C&rft.aulast=Chen&rft.aufirst=Baowei&rft.date=2005-01-25&rft.volume=44&rft.issue=3&rft.spage=905&rft.isbn=&rft.btitle=&rft.title=Biochemistry&rft.issn=00062960&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-04-12 N1 - Date created - 2005-01-18 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Targeted Comparative Proteomics by Liquid Chromatography-Tandem Fourier Ion Cyclotron Resonance Mass Spectrometry AN - 17377382; 6460746 AB - In proteomics, effective methods are needed for identifying the relatively limited subset of proteins displaying significant changes in abundance between two samples. One way to accomplish this task is to target for identification by MS/MS only the "interesting" proteins based on the abundance ratio of isotopically labeled pairs of peptides. We have developed the software and hardware tools for online LC-FTICR MS/MS studies in which a set of initially unidentified peptides from a proteome analysis can be selected for identification based on their distinctive changes in abundance following a "perturbation". We report here the validation of this method using a mixture of standard proteins combined in different ratios after isotopic labeling. We also demonstrate the application of this method to the identification of Shewanella oneidensis peptides/proteins exhibiting differential abundance in suboxic versus aerobic cell cultures. JF - Analytical Chemistry (Washington) AU - Masselon, C AU - Pasa-Tolic, L AU - Tolic, N AU - Anderson, G A AU - Bogdanov, B AU - Vilkov, AN AU - Shen, Y AU - Zhao, R AU - Qian, W-J AU - Lipton AU - Camp, DG II AU - Smith, R D AD - Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, MSIN K8-98, Richland, Washington 99352, USA Y1 - 2005/01/15/ PY - 2005 DA - 2005 Jan 15 SP - 400 EP - 406 VL - 77 IS - 2 SN - 0003-2700, 0003-2700 KW - Microbiology Abstracts B: Bacteriology; Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - Computer programs KW - software KW - Shewanella oneidensis KW - Cell culture KW - proteomics KW - Mass spectroscopy KW - W 30965:Miscellaneous, Reviews KW - W4 350:Bioinformatics KW - J 02450:Ecology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17377382?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+Chemistry+%28Washington%29&rft.atitle=Targeted+Comparative+Proteomics+by+Liquid+Chromatography-Tandem+Fourier+Ion+Cyclotron+Resonance+Mass+Spectrometry&rft.au=Masselon%2C+C%3BPasa-Tolic%2C+L%3BTolic%2C+N%3BAnderson%2C+G+A%3BBogdanov%2C+B%3BVilkov%2C+AN%3BShen%2C+Y%3BZhao%2C+R%3BQian%2C+W-J%3BLipton%3BCamp%2C+DG+II%3BSmith%2C+R+D&rft.aulast=Masselon&rft.aufirst=C&rft.date=2005-01-15&rft.volume=77&rft.issue=2&rft.spage=400&rft.isbn=&rft.btitle=&rft.title=Analytical+Chemistry+%28Washington%29&rft.issn=00032700&rft_id=info:doi/10.1021%2Fac049043e LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-09-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Computer programs; software; Cell culture; proteomics; Mass spectroscopy; Shewanella oneidensis DO - http://dx.doi.org/10.1021/ac049043e ER - TY - JOUR T1 - Expedition 311 synthesis; scientific findings AN - 742922201; 2010-064295 AB - Integrated Ocean Drilling Program Expedition 311 was conducted to study gas hydrate occurrences and their evolution along a transect spanning the entire northern Cascadia accretionary margin. A transect of four research sites (U1325, U1326, U1327, and U1329) was established over a distance of 32 km, extending from Site U1326 near the deformation front to Site U1329 at the eastern limit of the inferred gas hydrate occurrence zone. In addition to the transect, a fifth site (U1328) was established at a cold vent setting with active fluid and gas expulsion, which provided an opportunity to compare regional pervasive fluid-flow regimes to a site of focused fluid advection. In this synthesis, a revised gas hydrate formation model is proposed based on a combination of geophysical, geochemical, and sedimentological data acquired during and after Expedition 311 and from previous studies. The main elements of this revised model are as follows: 1. Fluid expulsion by tectonic compression of accreted sediments at nonuniform expulsion rates along the transect results in the evolution of variable pore water regimes across the margin. Sites closer to the deformation front are characterized by pore fluids enriched in dissolved salts at depth, where zeolite formation from ash diagenesis is dominant. In contrast, the landward portion of the margin shows a freshening of pore fluids with depth as a result of the progressive overprinting of diagenetic salt generation with freshwater generation from the smectite-to-illite transition at greater depth. 2. In situ methane produced by microbial CO (sub 2) reduction within the gas hydrate stability zone is the prevalent gas source for gas hydrate formation. 3. Some minor methane advection from depth is required overall to explain the occurrence of gas hydrate (and the associated downhole isotopic signatures of CH (sub 4) and CO (sub 2) ) within the sediments of the accretionary prism and the absence of gas hydrate within the abyssal plain sediments. In contrast, methane migrating from depth is a dominant source for gas hydrate formation at the cold vent Site U1328 (Bullseye vent). 4. Gas hydrate preferentially forms in coarser grained sandy/silt turbidites, resulting in very high local gas hydrate concentrations. Typically, gas hydrate occupies <5% of the pore space throughout the gas hydrate stability zone. Higher gas hydrate saturations were observed in intervals with abundant coarse-grained sand layers and within fault-controlled fluid and gas migration conduits at the cold vent Site U1328. JF - Proceedings of the Integrated Ocean Drilling Program AU - Riedel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi Y1 - 2005 PY - 2005 DA - 2005 SP - 4 PB - IODP Management International, Washington, DC VL - 311 KW - Northeast Pacific KW - gas hydrates KW - IODP Site U1326 KW - IODP Site U1327 KW - IODP Site U1328 KW - IODP Site U1329 KW - temperature KW - carbon dioxide KW - IODP Site U1325 KW - carbon KW - reduction KW - Expedition 311 KW - East Pacific KW - lithium KW - C-13/C-12 KW - alkanes KW - seismic methods KW - flows KW - models KW - Sr-87/Sr-86 KW - organic compounds KW - Canada KW - North Pacific KW - hydrocarbons KW - surveys KW - geophysical profiles KW - strontium KW - pore water KW - chlorinity KW - United States KW - geophysical surveys KW - isotopes KW - aliphatic hydrocarbons KW - stability KW - fluid phase KW - salinity KW - stable isotopes KW - cores KW - bottom-simulating reflectors KW - marine sediments KW - sediments KW - geochemistry KW - migration KW - alkaline earth metals KW - Washington KW - seismic profiles KW - methane KW - well logs KW - isotope ratios KW - geophysical methods KW - alkali metals KW - British Columbia KW - Integrated Ocean Drilling Program KW - resistivity KW - hydrochemistry KW - genesis KW - biogenic processes KW - boreholes KW - metals KW - Pacific Ocean KW - Western Canada KW - Cascadia subduction zone KW - 02D:Isotope geochemistry KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742922201?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Expedition+311+synthesis%3B+scientific+findings&rft.au=Riedel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi&rft.aulast=Riedel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.213.2010 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Number of references - 62 N1 - PubXState - DC N1 - Document feature - illus. incl. sect., 1 table, geol. sketch map N1 - SuppNotes - Date issued: 2010 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkali metals; alkaline earth metals; alkanes; biogenic processes; boreholes; bottom-simulating reflectors; British Columbia; C-13/C-12; Canada; carbon; carbon dioxide; Cascadia subduction zone; chlorinity; cores; East Pacific; Expedition 311; flows; fluid phase; gas hydrates; genesis; geochemistry; geophysical methods; geophysical profiles; geophysical surveys; hydrocarbons; hydrochemistry; Integrated Ocean Drilling Program; IODP Site U1325; IODP Site U1326; IODP Site U1327; IODP Site U1328; IODP Site U1329; isotope ratios; isotopes; lithium; marine sediments; metals; methane; migration; models; North Pacific; Northeast Pacific; organic compounds; Pacific Ocean; pore water; reduction; resistivity; salinity; sediments; seismic methods; seismic profiles; Sr-87/Sr-86; stability; stable isotopes; strontium; surveys; temperature; United States; Washington; well logs; Western Canada DO - http://dx.doi.org/10.2204/iodp.proc.311.213.2010 ER - TY - JOUR T1 - Modeling long-term risk to environmental and human systems at the Hanford Nuclear Reservation: scope and findings from the initial model. AN - 67975081; 15984066 AB - The Groundwater Protection Project at the US Department of Energy Hanford Site in Washington State is currently developing the means to assess the cumulative impact to human and ecological health and the regional economy and cultures from radioactive and chemical waste that will remain at the Hanford Site after the site closes. This integrated system is known as the System Assessment Capability (SAC). The SAC Risk/Impact Module discussed in the article uses media- and time-specific concentrations of contaminants estimated by the transport models of the integrated system to project potential impacts on the ecology of the Columbia River corridor, the health of persons who might live in or use the corridor or the upland Hanford environment, the local economy, and cultural resources. Preliminary Monte Carlo realizations from the SAC modeling system demonstrate the feasibility of large-scale uncertainty analysis of the complex relationships in the environmental transport of contaminants on the one hand and ecological, human, cultural, and economic risk on the other. Initial impact results show very small long-term risks for the 10 radionuclides and chemicals evaluated. The analysis also helps determine science priorities to reduce uncertainty and suggests what actions matter to reduce risks. JF - Environmental management AU - Scott, Michael J AU - Brandt, Charlie A AU - Bunn, Amoret L AU - Engel, David W AU - Eslinger, Paul W AU - Miley, Terri B AU - Napier, Bruce A AU - Prendergast, Ellen L AU - Nieves, Leslie A AD - Pacific Northwest National Laboratory, Richland, Washington 99352-2458, USA. michael.scott@pnl.gov Y1 - 2005/01// PY - 2005 DA - January 2005 SP - 84 EP - 98 VL - 35 IS - 1 SN - 0364-152X, 0364-152X KW - Radioactive Pollutants KW - 0 KW - Radioactive Waste KW - Index Medicus KW - Washington KW - Public Health KW - Humans KW - Monte Carlo Method KW - Risk Assessment KW - Ecology KW - Radioactive Pollutants -- analysis KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67975081?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+management&rft.atitle=Modeling+long-term+risk+to+environmental+and+human+systems+at+the+Hanford+Nuclear+Reservation%3A+scope+and+findings+from+the+initial+model.&rft.au=Scott%2C+Michael+J%3BBrandt%2C+Charlie+A%3BBunn%2C+Amoret+L%3BEngel%2C+David+W%3BEslinger%2C+Paul+W%3BMiley%2C+Terri+B%3BNapier%2C+Bruce+A%3BPrendergast%2C+Ellen+L%3BNieves%2C+Leslie+A&rft.aulast=Scott&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=35&rft.issue=1&rft.spage=84&rft.isbn=&rft.btitle=&rft.title=Environmental+management&rft.issn=0364152X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-07-12 N1 - Date created - 2005-06-28 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - A proteomic approach to characterize protein shedding. AN - 67459221; 15672459 AB - Shedding (i.e. proteolysis of ectodomains of membrane proteins) plays an important pathophysiological role. In order to study the feasibility of identifying shed proteins, we analyzed serum-free media of human mammary epithelial cells by mass spectrometry following induction of shedding by the phorbol ester, 4 beta-phorbol 12-myristate 13-acetate (PMA). Different means of sample preparation, including biotinylation of cell surface proteins, isolation of glycosylated proteins, and preparation of crude protein fractions, were carried out to develop the optimal method of sample processing. The collected proteins were digested with trypsin and analyzed by reversed-phase capillary liquid chromatography interfaced to an ion-trap mass spectrometer. The resulting peptide spectra were interpreted using the program SEQUEST. Analyzing the sample containing the crude protein mixture without chemical modification or separation resulted in the greatest number of identifications, including putatively shed proteins. Overall, 45 membrane-associated proteins were identified including 22 that contain at least one transmembrane domain and 23 that indirectly associate with the extracellular surface of the plasma membrane. Of the 22 transmembrane proteins, 18 were identified by extracellular peptides providing strong evidence they originate from regulated proteolysis or shedding processes. We combined results from the different experiments and used a peptide count method to estimate changes in protein abundance. Using this approach, we identified two proteins, syndecan-4 and hepatoma-derived growth factor, whose abundances increased in media of cells treated with PMA. We also detected proteins whose abundances decreased after PMA treatment such as 78 kDa glucose-regulated protein and lactate dehydrogenase A. Further analysis using immunoblotting validated the abundance changes for syndecan-4 and 78 kDa glucose-regulated protein as a result of PMA treatment. These results demonstrate that tandem mass spectrometry can be used to identify shed proteins and to estimate changes in protein abundance. JF - Proteomics AU - Ahram, Mamoun AU - Adkins, Joshua N AU - Auberry, Deanna L AU - Wunschel, David S AU - Springer, David L AD - Biological Sciences Division, Battelle, Pacific Northwest National Laboratory, Richland, WA 99352, USA. Y1 - 2005/01// PY - 2005 DA - January 2005 SP - 123 EP - 131 VL - 5 IS - 1 SN - 1615-9853, 1615-9853 KW - Antigens, CD44 KW - 0 KW - Heat-Shock Proteins KW - Intercellular Signaling Peptides and Proteins KW - Membrane Glycoproteins KW - Membrane Proteins KW - Molecular Chaperones KW - Phorbol Esters KW - Proteoglycans KW - Proteome KW - SDC4 protein, human KW - Syndecan-4 KW - hepatoma-derived growth factor KW - molecular chaperone GRP78 KW - phorbolol myristate acetate KW - 56937-68-9 KW - Tetradecanoylphorbol Acetate KW - NI40JAQ945 KW - Index Medicus KW - Heat-Shock Proteins -- metabolism KW - Membrane Glycoproteins -- chemistry KW - Mass Spectrometry KW - Molecular Chaperones -- chemistry KW - Molecular Chaperones -- metabolism KW - Humans KW - Protein Denaturation KW - Intercellular Signaling Peptides and Proteins -- chemistry KW - Antigens, CD44 -- metabolism KW - Biotinylation KW - Heat-Shock Proteins -- chemistry KW - Epithelial Cells -- metabolism KW - Phorbol Esters -- pharmacology KW - Epithelial Cells -- chemistry KW - Epithelial Cells -- drug effects KW - Proteoglycans -- metabolism KW - Cells, Cultured KW - Chromatography, Liquid KW - Antigens, CD44 -- chemistry KW - Protein Structure, Tertiary KW - Glycolysis KW - Proteoglycans -- chemistry KW - Intercellular Signaling Peptides and Proteins -- metabolism KW - Membrane Glycoproteins -- metabolism KW - Tetradecanoylphorbol Acetate -- analogs & derivatives KW - Membrane Proteins -- chemistry KW - Membrane Proteins -- metabolism KW - Tetradecanoylphorbol Acetate -- pharmacology KW - Proteome -- analysis KW - Membrane Proteins -- isolation & purification UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67459221?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proteomics&rft.atitle=A+proteomic+approach+to+characterize+protein+shedding.&rft.au=Ahram%2C+Mamoun%3BAdkins%2C+Joshua+N%3BAuberry%2C+Deanna+L%3BWunschel%2C+David+S%3BSpringer%2C+David+L&rft.aulast=Ahram&rft.aufirst=Mamoun&rft.date=2005-01-01&rft.volume=5&rft.issue=1&rft.spage=123&rft.isbn=&rft.btitle=&rft.title=Proteomics&rft.issn=16159853&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-08-08 N1 - Date created - 2005-02-24 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - BOOK T1 - Climate change impacts for the conterminous USA; an integrated assessment; Part 4, Water resources AN - 51684564; 2005-060883 JF - Climate change impacts for the conterminous USA; an integrated assessment AU - Thomson, Allison M AU - Brown, Robert A AU - Rosenberg, Norman J AU - Srinivasan, Raghavan AU - Izaurralde, R Cesar A2 - Rosenberg, Norman J. A2 - Edmonds, James A. Y1 - 2005 PY - 2005 DA - 2005 PB - Springer, Dordrecht SN - 1402032552 KW - United States KW - hydrology KW - general circulation models KW - water supply KW - fresh water KW - global change KW - atmospheric precipitation KW - environmental effects KW - climate change KW - variations KW - hydrologic cycle KW - evaporation KW - water yield KW - seasonal variations KW - greenhouse effect KW - water resources KW - global warming KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51684564?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Thomson%2C+Allison+M%3BBrown%2C+Robert+A%3BRosenberg%2C+Norman+J%3BSrinivasan%2C+Raghavan%3BIzaurralde%2C+R+Cesar&rft.aulast=Thomson&rft.aufirst=Allison&rft.date=2005-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=1402032552&rft.btitle=Climate+change+impacts+for+the+conterminous+USA%3B+an+integrated+assessment%3B+Part+4%2C+Water+resources&rft.title=Climate+change+impacts+for+the+conterminous+USA%3B+an+integrated+assessment%3B+Part+4%2C+Water+resources&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 16 N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Climate change impacts for the conterminous USA; an integrated assessment AN - 51683554; 2005-060882 JF - Climate change impacts for the conterminous USA; an integrated assessment A2 - Rosenberg, Norman J. A2 - Edmonds, James A. Y1 - 2005 PY - 2005 DA - 2005 SP - 162 PB - Springer, Dordrecht SN - 1402032552 KW - United States KW - agriculture KW - prediction KW - global change KW - ecosystems KW - environmental effects KW - climate change KW - models KW - economics KW - water resources KW - land use KW - global warming KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51683554?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2005-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=1402032552&rft.btitle=Climate+change+impacts+for+the+conterminous+USA%3B+an+integrated+assessment&rft.title=Climate+change+impacts+for+the+conterminous+USA%3B+an+integrated+assessment&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - SuppNotes - Individual paper within scope is cited separately; reprinted from Climatic Change, Vol. 69, No. 1, 2005 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Enzymology of electron transport; energy generation with geochemical consequences AN - 51646177; 2006-007897 JF - Reviews in Mineralogy and Geochemistry AU - DiChristina, Thomas J AU - Fredrickson, Jim K AU - Zachara, John M A2 - Banfield, Jillian F. A2 - Cervini-Silva, Javiera A2 - Nealson, Kenneth M. Y1 - 2005 PY - 2005 DA - 2005 SP - 27 EP - 52 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 59 IS - 1 SN - 1529-6466, 1529-6466 KW - alkaline earth metals KW - magnesium KW - experimental studies KW - geomicrobiology KW - biochemistry KW - enzymes KW - iron KW - geochemical cycle KW - laboratory studies KW - organic compounds KW - metals KW - bacteria KW - reduction KW - proteins KW - microorganisms KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51646177?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reviews+in+Mineralogy+and+Geochemistry&rft.atitle=Enzymology+of+electron+transport%3B+energy+generation+with+geochemical+consequences&rft.au=DiChristina%2C+Thomas+J%3BFredrickson%2C+Jim+K%3BZachara%2C+John+M&rft.aulast=DiChristina&rft.aufirst=Thomas&rft.date=2005-01-01&rft.volume=59&rft.issue=1&rft.spage=27&rft.isbn=&rft.btitle=&rft.title=Reviews+in+Mineralogy+and+Geochemistry&rft.issn=15296466&rft_id=info:doi/ L2 - http://www.minsocam.org/MSA/RIM/ LA - English DB - GeoRef N1 - Conference title - Molecular geomicrobiology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2006-01-01 N1 - Number of references - 132 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; bacteria; biochemistry; enzymes; experimental studies; geochemical cycle; geomicrobiology; iron; laboratory studies; magnesium; metals; microorganisms; organic compounds; proteins; reduction ER - TY - JOUR T1 - Data report; bulk mineralogical composition of Cascadia margin sediments; IODP Expedition 311 AN - 51253897; 2008-064248 JF - Proceedings of the Integrated Ocean Drilling Program AU - Bahr, Andre AU - Bohrmann, Gerhard AU - Teichert, Barbara M A AU - Riedel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi Y1 - 2005 PY - 2005 DA - 2005 PB - IODP Management International, Washington, DC VL - 311 KW - continental margin KW - X-ray diffraction data KW - IODP Site U1326 KW - IODP Site U1327 KW - British Columbia KW - IODP Site U1328 KW - Integrated Ocean Drilling Program KW - IODP Site U1329 KW - detritus KW - cores KW - variations KW - marine sediments KW - mineral composition KW - boreholes KW - Canada KW - Vancouver Island KW - IODP Site U1325 KW - sediments KW - Western Canada KW - Cascadia subduction zone KW - Expedition 311 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51253897?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Data+report%3B+bulk+mineralogical+composition+of+Cascadia+margin+sediments%3B+IODP+Expedition+311&rft.au=Bahr%2C+Andre%3BBohrmann%2C+Gerhard%3BTeichert%2C+Barbara+M+A%3BRiedel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi&rft.aulast=Bahr&rft.aufirst=Andre&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.201.2008 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 6 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - boreholes; British Columbia; Canada; Cascadia subduction zone; continental margin; cores; detritus; Expedition 311; Integrated Ocean Drilling Program; IODP Site U1325; IODP Site U1326; IODP Site U1327; IODP Site U1328; IODP Site U1329; marine sediments; mineral composition; sediments; Vancouver Island; variations; Western Canada; X-ray diffraction data DO - http://dx.doi.org/10.2204/iodp.proc.311.201.2008 ER - TY - JOUR T1 - Data report; Gas hydrate structural and compositional characterization by spectroscopic analysis, IODP Expedition 311 AN - 51231738; 2008-074118 AB - Two gas hydrate cores from Integrated Ocean Drilling Program Expedition 311 Site U1328 (northern Cascadia margin) were analyzed for structural and compositional characterization. Gas hydrate was present mainly as nodules surrounded by sediment. The samples were recovered from 4.5 to 8.68 meters below seafloor using a conventional nonpressurized coring technique. Quenched in liquid nitrogen upon recovery, the gas hydrates were kept at cryogenic temperatures for sampling with Raman and nuclear magnetic resonance spectroscopy. Pure structure I (sI) methane gas hydrate was found in one sample and a methane-rich sI gas hydrate containing hydrogen sulfide was found in the second sample. Small local variations in the hydrogen sulfide amounts were shown. A hydration number of 6.08 was measured for both samples, in agreement with previous work with synthetic and recovered natural gas hydrates from similar locations. A method for determining the fraction of hydrate vs. ice using a Raman peak from water is given. This approach provides a possible tool to estimate sample degradation (conversion of gas hydrate to water+gas) as a result of recovery. Quantitative agreement between the methane cage occupancy ratios was shown for the nuclear magnetic resonance and Raman spectroscopic techniques for both sample sets, comprising pure methane and a mixture of methane+hydrogen sulfide. JF - Proceedings of the Integrated Ocean Drilling Program AU - Hester, K C AU - Koh, C A AU - Dec, S F AU - Sloan, E D AU - Riedel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi Y1 - 2005 PY - 2005 DA - 2005 EP - variously paginated PB - IODP Management International, Washington, DC VL - 311 KW - gas hydrates KW - natural gas KW - aliphatic hydrocarbons KW - stability KW - petroleum KW - IODP Site U1328 KW - NMR spectra KW - cores KW - laboratory studies KW - marine sediments KW - sediments KW - composition KW - spectra KW - Expedition 311 KW - experimental studies KW - continental margin KW - methane KW - British Columbia KW - Integrated Ocean Drilling Program KW - hydrogen sulfide KW - alkanes KW - organic compounds KW - Raman spectra KW - boreholes KW - Canada KW - Vancouver Island KW - hydrocarbons KW - Western Canada KW - Cascadia subduction zone KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51231738?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Data+report%3B+Gas+hydrate+structural+and+compositional+characterization+by+spectroscopic+analysis%2C+IODP+Expedition+311&rft.au=Hester%2C+K+C%3BKoh%2C+C+A%3BDec%2C+S+F%3BSloan%2C+E+D%3BRiedel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi&rft.aulast=Hester&rft.aufirst=K&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.202.2008 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 22 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; boreholes; British Columbia; Canada; Cascadia subduction zone; composition; continental margin; cores; Expedition 311; experimental studies; gas hydrates; hydrocarbons; hydrogen sulfide; Integrated Ocean Drilling Program; IODP Site U1328; laboratory studies; marine sediments; methane; natural gas; NMR spectra; organic compounds; petroleum; Raman spectra; sediments; spectra; stability; Vancouver Island; Western Canada DO - http://dx.doi.org/10.2204/iodp.proc.311.202.2008 ER - TY - JOUR T1 - Molecular modeling of the vibrational spectra of interlayer and surface species of layered double hydroxides AN - 51137023; 2005-051637 JF - CMS Workshop Lectures AU - Kirkpatrick, R James AU - Kalinichev, Andrey G AU - Wang, Jianwei AU - Hou, Xiaoqiang AU - Amonette, James E A2 - Kloprogge, J. Theo Y1 - 2005 PY - 2005 DA - 2005 SP - 239 EP - 285 PB - Clay Minerals Society, Evergreen, CO VL - 13 SN - 1521-740X, 1521-740X KW - mineral interlayer KW - numerical models KW - statistical analysis KW - data processing KW - equations KW - infrared spectra KW - hydroxides KW - Raman spectroscopy KW - FTIR spectra KW - Raman spectra KW - vibrational spectra KW - digital simulation KW - autocorrelation KW - oxides KW - spectra KW - molecular dynamics KW - spectroscopy KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51137023?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CMS+Workshop+Lectures&rft.atitle=Molecular+modeling+of+the+vibrational+spectra+of+interlayer+and+surface+species+of+layered+double+hydroxides&rft.au=Kirkpatrick%2C+R+James%3BKalinichev%2C+Andrey+G%3BWang%2C+Jianwei%3BHou%2C+Xiaoqiang%3BAmonette%2C+James+E&rft.aulast=Kirkpatrick&rft.aufirst=R&rft.date=2005-01-01&rft.volume=13&rft.issue=&rft.spage=239&rft.isbn=9781881208141&rft.btitle=&rft.title=CMS+Workshop+Lectures&rft.issn=1521740X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 81 N1 - PubXState - CO N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - autocorrelation; data processing; digital simulation; equations; FTIR spectra; hydroxides; infrared spectra; mineral interlayer; molecular dynamics; numerical models; oxides; Raman spectra; Raman spectroscopy; spectra; spectroscopy; statistical analysis; vibrational spectra ER - TY - JOUR T1 - Methods AN - 50874729; 2007-101790 JF - Proceedings of the Integrated Ocean Drilling Program AU - Riedel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi AU - Reidel, Michael Y1 - 2005 PY - 2005 DA - 2005 SP - 76 PB - IODP Management International, Washington, DC VL - 311 KW - East Pacific KW - lithostratigraphy KW - petrology KW - Northeast Pacific KW - biostratigraphy KW - geophysical methods KW - Integrated Ocean Drilling Program KW - downhole methods KW - cores KW - physical properties KW - organic compounds KW - marine sediments KW - North Pacific KW - Pacific Ocean KW - sediments KW - ocean floors KW - Cascadia subduction zone KW - geochemistry KW - Expedition 311 KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50874729?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Methods&rft.au=Riedel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi%3BReidel%2C+Michael&rft.aulast=Riedel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.102.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 92 N1 - PubXState - DC N1 - Document feature - 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - biostratigraphy; Cascadia subduction zone; cores; downhole methods; East Pacific; Expedition 311; geochemistry; geophysical methods; Integrated Ocean Drilling Program; lithostratigraphy; marine sediments; North Pacific; Northeast Pacific; ocean floors; organic compounds; Pacific Ocean; petrology; physical properties; sediments DO - http://dx.doi.org/10.2204/iodp.proc.311.102.2006 ER - TY - JOUR T1 - Expedition 311 summary AN - 50874695; 2007-101789 AB - A transect of four sites (U1325, U1326, U1327, and U1329) across the northern Cascadia margin was established during Integrated Ocean Drilling Program Expedition 311 to study the occurrences and formation of gas hydrate in accretionary complexes. In addition to the transect sites, a fifth site (U1328) was established at a cold vent with active fluid and gas flow. The four transect sites represent different stages in the evolution of gas hydrate across the margin from the earliest occurrence on the westernmost first accreted ridge (Site U1326) to its final stage at the eastward limit of gas hydrate occurrence on the margin in shallower water (Site U1329). Logging while drilling and measurement while drilling carried out prior to coring provided a set of measurements that guided subsequent coring and special tool deployments at all five sites. Additional wireline logging at each site and two vertical seismic profiles at Sites U1327 and U1328 were completed. A total of 1217.76 m of sediment core was recovered using the advanced piston corer and extended core barrel systems. Standard coring was interspersed with 24 (16 successful) pressure core sampler runs for onboard degassing experiments and 19 HYACINTH deployments, of which four were stored under in situ pressure for subsequent shore-based studies. Indirect evidence of the presence of gas hydrate included increased electrical resistivities and P-wave velocities on downhole logs and low-salinity interstitial water anomalies, numerous infrared cold spots, and decreases in void gas C1/C2 ratios, as well as gas hydrate-related sedimentological moussy/soupy textures in recovered cores. Gas hydrate was also observed directly in the recovered cores, and >31 gas hydrate samples were preserved in liquid nitrogen for shore-based studies. The combined observations show that gas hydrate at these sites mainly occurs within coarser-grained turbidite sands and silts. The occurrence of gas hydrate appears to be controlled by several key factors, and the concentration of gas hydrate changes significantly as those factors vary in the sediments along the margin. The key controlling factors are Local methane solubility linked with pore water salinity, Fluid/gas advection rates, and Availability of suitable host material (coarse-grained sediments). In the previous model for gas hydrate formation in an accretionary margin, the highest concentrations of gas hydrate were expected to occur near the base of the gas hydrate stability zone (GHSZ) above the bottom-simulating reflector (BSR), with concentrations gradually decreasing upward as a result of pervasive fluid advection from tectonically driven fluid expulsion. However, the results of Expedition 311 show that this model is too simple and that there are additional controlling factors. Although evidence for widespread gas hydrate-related BSRs was observed in the data, by far the largest concentrations of gas hydrate were observed at the top of the gas hydrate occurrence zone, at a point where the amount of methane in the pore fluid exceeded the local methane solubility threshold. This condition was most evident at Sites U1326 and U1327, where gas hydrate was observed in sections several tens of meters thick at a shallow depth of approximately 100 meters below seafloor (mbsf); concentrations exceed 80% of the pore volume. JF - Proceedings of the Integrated Ocean Drilling Program AU - Riedel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi AU - Reidel, Michael Y1 - 2005 PY - 2005 DA - 2005 SP - 68 PB - IODP Management International, Washington, DC VL - 311 KW - East Pacific KW - tectonic elements KW - seismic profiles KW - Northeast Pacific KW - geophysical surveys KW - gas hydrates KW - geophysical methods KW - Integrated Ocean Drilling Program KW - downhole methods KW - cores KW - seismic methods KW - marine sediments KW - North Pacific KW - Pacific Ocean KW - sediments KW - surveys KW - geophysical profiles KW - ocean floors KW - Cascadia subduction zone KW - Expedition 311 KW - 20:Applied geophysics KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50874695?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Expedition+311+summary&rft.au=Riedel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi%3BReidel%2C+Michael&rft.aulast=Riedel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.101.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 58 N1 - PubXState - DC N1 - Document feature - illus. incl. sects., 4 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Cascadia subduction zone; cores; downhole methods; East Pacific; Expedition 311; gas hydrates; geophysical methods; geophysical profiles; geophysical surveys; Integrated Ocean Drilling Program; marine sediments; North Pacific; Northeast Pacific; ocean floors; Pacific Ocean; sediments; seismic methods; seismic profiles; surveys; tectonic elements DO - http://dx.doi.org/10.2204/iodp.proc.311.101.2006 ER - TY - JOUR T1 - Site U1329 AN - 50871763; 2007-101798 JF - Proceedings of the Integrated Ocean Drilling Program AU - Riedel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi AU - Reidel, Michael Y1 - 2005 PY - 2005 DA - 2005 SP - 113 PB - IODP Management International, Washington, DC VL - 311 KW - lithostratigraphy KW - Northeast Pacific KW - geophysical surveys KW - IODP Site U1329 KW - downhole methods KW - algae KW - cores KW - Cenozoic KW - diatoms KW - ocean floors KW - geochemistry KW - Expedition 311 KW - East Pacific KW - Plantae KW - seismic profiles KW - Quaternary KW - biostratigraphy KW - geophysical methods KW - Integrated Ocean Drilling Program KW - Miocene KW - seismic methods KW - Tertiary KW - North Pacific KW - Neogene KW - Pacific Ocean KW - surveys KW - biozones KW - geophysical profiles KW - Cascadia subduction zone KW - microfossils KW - 12:Stratigraphy KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50871763?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Site+U1329&rft.au=Riedel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi%3BReidel%2C+Michael&rft.aulast=Riedel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.107.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 22 N1 - PubXState - DC N1 - Document feature - illus. incl. chart, 19 tables, sects. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algae; biostratigraphy; biozones; Cascadia subduction zone; Cenozoic; cores; diatoms; downhole methods; East Pacific; Expedition 311; geochemistry; geophysical methods; geophysical profiles; geophysical surveys; Integrated Ocean Drilling Program; IODP Site U1329; lithostratigraphy; microfossils; Miocene; Neogene; North Pacific; Northeast Pacific; ocean floors; Pacific Ocean; Plantae; Quaternary; seismic methods; seismic profiles; surveys; Tertiary DO - http://dx.doi.org/10.2204/iodp.proc.311.107.2006 ER - TY - JOUR T1 - Data report; testing and deployment of the new APCT-3 tool to determine in situ temperatures while piston coring AN - 50869700; 2007-101795 AB - During Integrated Ocean Drilling Program Expedition 311, the third-generation advanced piston corer temperature (APCT-3) tool, a new downhole tool to determine in situ formation temperatures while piston coring, was successfully tested and deployed for the first time. Its development was partly driven by the need to replace the advanced piston corer temperature tools, which were lost or damaged during many successful deployments over the last 15 y. Additionally, many important scientific problems require instruments having greater stability, accuracy, measurement frequency, and robustness than were available in the past. During all nine deployments during Expedition 311, the APCT-3 tool proved to be robust, reliable, and user-friendly regarding its mechanics, electronics, and operation software. In addition, the test deployments also provided temperature data that were important for achieving expedition objectives. Moreover, it was demonstrated that the APCT-3 tool is capable of measuring temperatures with a resolution and absolute accuracy (depending on careful calibration) of approximately 1 mK at a sampling interval of 1 s, an improvement of about one order of magnitude compared to earlier instrumentation. JF - Proceedings of the Integrated Ocean Drilling Program AU - Heesemann, Martin AU - Villinger, Heinrich W AU - Trehu, Andrew T F M AU - White, Steffen AU - Reidel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi Y1 - 2005 PY - 2005 DA - 2005 SP - 19 PB - IODP Management International, Washington, DC VL - 311 KW - East Pacific KW - Northeast Pacific KW - in situ KW - Integrated Ocean Drilling Program KW - measurement-while-drilling KW - cores KW - temperature KW - measurement KW - North Pacific KW - Pacific Ocean KW - applications KW - ocean floors KW - Cascadia subduction zone KW - accuracy KW - instruments KW - design KW - Expedition 311 KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50869700?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Data+report%3B+testing+and+deployment+of+the+new+APCT-3+tool+to+determine+in+situ+temperatures+while+piston+coring&rft.au=Heesemann%2C+Martin%3BVillinger%2C+Heinrich+W%3BTrehu%2C+Andrew+T+F+M%3BWhite%2C+Steffen%3BReidel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi&rft.aulast=Heesemann&rft.aufirst=Martin&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.108.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 20 N1 - PubXState - DC N1 - Document feature - 1 table N1 - SuppNotes - Includes appendix N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - accuracy; applications; Cascadia subduction zone; cores; design; East Pacific; Expedition 311; in situ; instruments; Integrated Ocean Drilling Program; measurement; measurement-while-drilling; North Pacific; Northeast Pacific; ocean floors; Pacific Ocean; temperature DO - http://dx.doi.org/10.2204/iodp.proc.311.108.2006 ER - TY - JOUR T1 - Site U1328 AN - 50869637; 2007-101794 JF - Proceedings of the Integrated Ocean Drilling Program AU - Riedel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi AU - Reidel, Michael Y1 - 2005 PY - 2005 DA - 2005 SP - 136 PB - IODP Management International, Washington, DC VL - 311 KW - lithostratigraphy KW - Northeast Pacific KW - geophysical surveys KW - gas hydrates KW - IODP Site U1328 KW - downhole methods KW - algae KW - cores KW - Cenozoic KW - marine sediments KW - diatoms KW - sediments KW - depositional environment KW - ocean floors KW - geochemistry KW - Expedition 311 KW - East Pacific KW - Plantae KW - seismic profiles KW - Quaternary KW - biostratigraphy KW - geophysical methods KW - Integrated Ocean Drilling Program KW - seismic methods KW - North Pacific KW - Pacific Ocean KW - surveys KW - Pleistocene KW - geophysical profiles KW - Cascadia subduction zone KW - microfossils KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50869637?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Site+U1328&rft.au=Riedel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi%3BReidel%2C+Michael&rft.aulast=Riedel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.106.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 42 N1 - PubXState - DC N1 - Document feature - illus. incl. charts, 25 tables, sects. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algae; biostratigraphy; Cascadia subduction zone; Cenozoic; cores; depositional environment; diatoms; downhole methods; East Pacific; Expedition 311; gas hydrates; geochemistry; geophysical methods; geophysical profiles; geophysical surveys; Integrated Ocean Drilling Program; IODP Site U1328; lithostratigraphy; marine sediments; microfossils; North Pacific; Northeast Pacific; ocean floors; Pacific Ocean; Plantae; Pleistocene; Quaternary; sediments; seismic methods; seismic profiles; surveys DO - http://dx.doi.org/10.2204/iodp.proc.311.106.2006 ER - TY - JOUR T1 - Gas hydrate on the northern Cascadia margin; regional geophysics and structural framework AN - 50869129; 2007-101796 AB - Integrated Ocean Drilling Program Expedition 311 is based on extensive site survey data and historic research at the northern Cascadia margin since 1985. This research includes various regional geophysical surveys using a broad spectrum of seismic techniques, coring and logging by the Ocean Drilling Program Leg 146, heat flow measurements, shallow piston coring, and bottom video observations across a cold-vent field, as well as novel controlled-source electromagnetic and seafloor compliance surveying techniques. The wealth of data available allowed construction of structural cross-sections of the margin, development of models for the formation of gas hydrate in an accretionary prism, and estimation of gas hydrate and free gas concentrations. Expedition 311 established for the first time a transect of drill sites across the northern Cascadia margin to study the evolution of gas hydrate formation over the entire gas hydrate stability field of the accretionary complex. This paper reviews the tectonic framework at the northern Cascadia margin and summarizes the scientific studies that led to the drilling objectives of Expedition 311 Cascadia gas hydrate. JF - Proceedings of the Integrated Ocean Drilling Program AU - Riedel, Michael AU - Willoughby, E C AU - Chen, M A AU - He, T AU - Novosel, I AU - Schwalenberg, I N K AU - Hyndman, R D AU - Spence, G D AU - Chapman, N R AU - Edwards, R N AU - Reidel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi Y1 - 2005 PY - 2005 DA - 2005 SP - 28 PB - IODP Management International, Washington, DC VL - 311 KW - Northeast Pacific KW - geophysical surveys KW - gas hydrates KW - stability KW - cores KW - marine sediments KW - sediments KW - electromagnetic methods KW - tectonics KW - ocean floors KW - vents KW - Expedition 311 KW - East Pacific KW - seismic profiles KW - thermal properties KW - geophysical methods KW - Integrated Ocean Drilling Program KW - seismic methods KW - North Pacific KW - Pacific Ocean KW - accretionary wedges KW - surveys KW - geophysical profiles KW - Cascadia subduction zone KW - 20:Applied geophysics KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50869129?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Gas+hydrate+on+the+northern+Cascadia+margin%3B+regional+geophysics+and+structural+framework&rft.au=Riedel%2C+Michael%3BWilloughby%2C+E+C%3BChen%2C+M+A%3BHe%2C+T%3BNovosel%2C+I%3BSchwalenberg%2C+I+N+K%3BHyndman%2C+R+D%3BSpence%2C+G+D%3BChapman%2C+N+R%3BEdwards%2C+R+N%3BReidel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi&rft.aulast=Riedel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.109.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 91 N1 - PubXState - DC N1 - Document feature - illus. incl. sects., sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - accretionary wedges; Cascadia subduction zone; cores; East Pacific; electromagnetic methods; Expedition 311; gas hydrates; geophysical methods; geophysical profiles; geophysical surveys; Integrated Ocean Drilling Program; marine sediments; North Pacific; Northeast Pacific; ocean floors; Pacific Ocean; sediments; seismic methods; seismic profiles; stability; surveys; tectonics; thermal properties; vents DO - http://dx.doi.org/10.2204/iodp.proc.311.109.2006 ER - TY - JOUR T1 - Site U1327 AN - 50868768; 2007-101793 JF - Proceedings of the Integrated Ocean Drilling Program AU - Riedel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi AU - Reidel, Michael Y1 - 2005 PY - 2005 DA - 2005 SP - 137 PB - IODP Management International, Washington, DC VL - 311 KW - lithostratigraphy KW - Northeast Pacific KW - geophysical surveys KW - gas hydrates KW - IODP Site U1327 KW - downhole methods KW - algae KW - cores KW - bottom-simulating reflectors KW - Cenozoic KW - marine sediments KW - diatoms KW - sediments KW - ocean floors KW - geochemistry KW - Expedition 311 KW - East Pacific KW - Plantae KW - seismic profiles KW - Quaternary KW - biostratigraphy KW - geophysical methods KW - Integrated Ocean Drilling Program KW - seismic methods KW - North Pacific KW - Pacific Ocean KW - surveys KW - biozones KW - geophysical profiles KW - Cascadia subduction zone KW - microfossils KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50868768?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Site+U1327&rft.au=Riedel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi%3BReidel%2C+Michael&rft.aulast=Riedel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.105.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 50 N1 - PubXState - DC N1 - Document feature - illus. incl. charts, sects., 24 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algae; biostratigraphy; biozones; bottom-simulating reflectors; Cascadia subduction zone; Cenozoic; cores; diatoms; downhole methods; East Pacific; Expedition 311; gas hydrates; geochemistry; geophysical methods; geophysical profiles; geophysical surveys; Integrated Ocean Drilling Program; IODP Site U1327; lithostratigraphy; marine sediments; microfossils; North Pacific; Northeast Pacific; ocean floors; Pacific Ocean; Plantae; Quaternary; sediments; seismic methods; seismic profiles; surveys DO - http://dx.doi.org/10.2204/iodp.proc.311.105.2006 ER - TY - JOUR T1 - Site U1325 AN - 50868712; 2007-101791 JF - Proceedings of the Integrated Ocean Drilling Program AU - Riedel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi AU - Reidel, Michael AU - Schultheiss, Peter Y1 - 2005 PY - 2005 DA - 2005 SP - 111 PB - IODP Management International, Washington, DC VL - 311 KW - lithostratigraphy KW - Northeast Pacific KW - geophysical surveys KW - downhole methods KW - algae KW - cores KW - Cenozoic KW - diatoms KW - IODP Site U1325 KW - depositional environment KW - ocean floors KW - geochemistry KW - Expedition 311 KW - East Pacific KW - Plantae KW - seismic profiles KW - Quaternary KW - biostratigraphy KW - geophysical methods KW - Integrated Ocean Drilling Program KW - hydrochemistry KW - seismic methods KW - physical properties KW - organic compounds KW - North Pacific KW - Pacific Ocean KW - surveys KW - biozones KW - geophysical profiles KW - Cascadia subduction zone KW - microfossils KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50868712?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Site+U1325&rft.au=Riedel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi%3BReidel%2C+Michael%3BSchultheiss%2C+Peter&rft.aulast=Riedel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.103.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 17 N1 - PubXState - DC N1 - Document feature - illus. incl. charts, 20 tables, sects. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algae; biostratigraphy; biozones; Cascadia subduction zone; Cenozoic; cores; depositional environment; diatoms; downhole methods; East Pacific; Expedition 311; geochemistry; geophysical methods; geophysical profiles; geophysical surveys; hydrochemistry; Integrated Ocean Drilling Program; IODP Site U1325; lithostratigraphy; microfossils; North Pacific; Northeast Pacific; ocean floors; organic compounds; Pacific Ocean; physical properties; Plantae; Quaternary; seismic methods; seismic profiles; surveys DO - http://dx.doi.org/10.2204/iodp.proc.311.103.2006 ER - TY - JOUR T1 - Physical properties of near-surface sediments at southern Hydrate Ridge; results from ODP Leg 204 AN - 50868311; 2007-035096 AB - At the Leg 204 sites located on southern Hydrate Ridge, offshore the Oregon margin, detailed measurements of physical properties in the upper 10-20 m were carried out to characterize the physical nature of the near-surface sediments. Measurements included P-wave velocity, magnetic susceptibility, density, porosity, electrical resistivity, and shear strength. At Sites 1244, 1245, and 1246, P-wave velocity was also determined on the split cores using the Hamilton frame. Electrical resistivity was measured with the new noncontact resistivity tool from Geotek on whole cores as part of multisensor track core logging at Sites 1244, 1245, 1246, 1247, 1248, and 1252. These data were then used to calculate porosity using moisture and density measurements to develop appropriate transfer functions by using Archie's relation. This data set is important because only limited reliable logging data were obtained in the upper 10-20 m as a result of poor borehole conditions. Sediment porosities appear to be highest at Sites 1251 and 1252 in the slope basin, with values of approximately 75% in the upper 5 m below seafloor. Porosity is generally approximately 10% lower at all other sites. Porosity profiles were compared with P-wave velocity and sediment shear strength. Apparent overconsolidation of near-surface sediments was observed at Sites 1244, 1245, and 1246. At Site 1251, no such overconsolidation is observed. Sites 1244, 1245, and 1246 are located on the flanks of the anticline at southern Hydrate Ridge and have probably been exposed to erosion, whereas Sites 1251 and 1252, which are located in the eastward basin, have a much higher recent sedimentation rate as a result of turbidite deposition. JF - Proceedings of the Ocean Drilling Program, Scientific Results (CD ROM) AU - Riedel, Michael AU - Long, Philip E AU - Liu, Char-Shine AU - Schultheiss, Peter AU - Collett, Timothy S AU - Trehu, Anne M AU - Bohrmann, Gerhard AU - Torres, Marta E AU - Rack, Frank R AU - Bangs, Nathan L AU - Barr, Samantha R AU - Borowski, Walter S AU - Claypool, George E AU - Delwiche, Mark E AU - Dickens, Gerald R AU - Goldberg, David S AU - Gracia, Eulalia AU - Guerin, Gilles AU - Holland, Melanie AU - Johnson, Joel E AU - Lee, Young-Joo AU - Milkov, Alexei V (Aleksey V) AU - Su, Xin AU - Teichert, Barbara AU - Tomaru, Hitoshi AU - Vanneste, Maarten AU - Watanabe, Mahito AU - Weinberger, Jill L AU - Boetius, Antje AU - Brockman, Fred J AU - Deyhle, Annette AU - Fehn, Udo AU - Flemings, Peter B AU - Girguis, Peter R AU - Heesemann, Martin AU - Joye, Samantha B AU - Lorenson, Thomas D AU - Mills, Christopher T AU - Musgrave, Robert J AU - Popa, Radu AU - Ussler, Bill AU - Wilkes, Heinz AU - Winckler, Gisela AU - Winters, William J Y1 - 2005 PY - 2005 DA - 2005 SP - 29 PB - Texas A&M University, Ocean Drilling Program, College Station, TX VL - 204 SN - 1096-2514, 1096-2514 KW - East Pacific KW - soil mechanics KW - electrical properties KW - Northeast Pacific KW - density KW - strength KW - Hydrate Ridge KW - porosity KW - physical properties KW - marine sediments KW - North Pacific KW - Pacific Ocean KW - sediments KW - Ocean Drilling Program KW - Leg 204 KW - Cascadia subduction zone KW - 30:Engineering geology KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50868311?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Ocean+Drilling+Program%2C+Scientific+Results+%28CD+ROM%29&rft.atitle=Physical+properties+of+near-surface+sediments+at+southern+Hydrate+Ridge%3B+results+from+ODP+Leg+204&rft.au=Riedel%2C+Michael%3BLong%2C+Philip+E%3BLiu%2C+Char-Shine%3BSchultheiss%2C+Peter%3BCollett%2C+Timothy+S%3BTrehu%2C+Anne+M%3BBohrmann%2C+Gerhard%3BTorres%2C+Marta+E%3BRack%2C+Frank+R%3BBangs%2C+Nathan+L%3BBarr%2C+Samantha+R%3BBorowski%2C+Walter+S%3BClaypool%2C+George+E%3BDelwiche%2C+Mark+E%3BDickens%2C+Gerald+R%3BGoldberg%2C+David+S%3BGracia%2C+Eulalia%3BGuerin%2C+Gilles%3BHolland%2C+Melanie%3BJohnson%2C+Joel+E%3BLee%2C+Young-Joo%3BMilkov%2C+Alexei+V+%28Aleksey+V%29%3BSu%2C+Xin%3BTeichert%2C+Barbara%3BTomaru%2C+Hitoshi%3BVanneste%2C+Maarten%3BWatanabe%2C+Mahito%3BWeinberger%2C+Jill+L%3BBoetius%2C+Antje%3BBrockman%2C+Fred+J%3BDeyhle%2C+Annette%3BFehn%2C+Udo%3BFlemings%2C+Peter+B%3BGirguis%2C+Peter+R%3BHeesemann%2C+Martin%3BJoye%2C+Samantha+B%3BLorenson%2C+Thomas+D%3BMills%2C+Christopher+T%3BMusgrave%2C+Robert+J%3BPopa%2C+Radu%3BUssler%2C+Bill%3BWilkes%2C+Heinz%3BWinckler%2C+Gisela%3BWinters%2C+William+J&rft.aulast=Riedel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=204&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Ocean+Drilling+Program%2C+Scientific+Results+%28CD+ROM%29&rft.issn=10962514&rft_id=info:doi/10.2973%2Fodp.proc.sr.204.104.2006 L2 - http://www-odp.tamu.edu/publications/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 21 N1 - PubXState - TX N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Available only on CD-ROM in PDF format and on the Web in PDF or HTML; CD-ROM format, ISSN 1096-2514; WWW format, ISSN 1096-7451 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Cascadia subduction zone; density; East Pacific; electrical properties; Hydrate Ridge; Leg 204; marine sediments; North Pacific; Northeast Pacific; Ocean Drilling Program; Pacific Ocean; physical properties; porosity; sediments; soil mechanics; strength DO - http://dx.doi.org/10.2973/odp.proc.sr.204.104.2006 ER - TY - JOUR T1 - Site U1326 AN - 50868264; 2007-101792 JF - Proceedings of the Integrated Ocean Drilling Program AU - Riedel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi AU - Reidel, Michael Y1 - 2005 PY - 2005 DA - 2005 SP - 103 PB - IODP Management International, Washington, DC VL - 311 KW - lithostratigraphy KW - Northeast Pacific KW - geophysical surveys KW - IODP Site U1326 KW - downhole methods KW - algae KW - cores KW - Cenozoic KW - marine sediments KW - diatoms KW - sediments KW - depositional environment KW - ocean floors KW - geochemistry KW - Expedition 311 KW - East Pacific KW - Plantae KW - seismic profiles KW - Quaternary KW - biostratigraphy KW - geomicrobiology KW - geophysical methods KW - paleomagnetism KW - Integrated Ocean Drilling Program KW - seismic methods KW - North Pacific KW - Pacific Ocean KW - surveys KW - biozones KW - geophysical profiles KW - Cascadia subduction zone KW - microfossils KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50868264?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Site+U1326&rft.au=Riedel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi%3BReidel%2C+Michael&rft.aulast=Riedel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.104.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 15 N1 - PubXState - DC N1 - Document feature - illus. incl. charts, 21 tables, sects. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algae; biostratigraphy; biozones; Cascadia subduction zone; Cenozoic; cores; depositional environment; diatoms; downhole methods; East Pacific; Expedition 311; geochemistry; geomicrobiology; geophysical methods; geophysical profiles; geophysical surveys; Integrated Ocean Drilling Program; IODP Site U1326; lithostratigraphy; marine sediments; microfossils; North Pacific; Northeast Pacific; ocean floors; Pacific Ocean; paleomagnetism; Plantae; Quaternary; sediments; seismic methods; seismic profiles; surveys DO - http://dx.doi.org/10.2204/iodp.proc.311.104.2006 ER - TY - JOUR T1 - Data report; seismic structure beneath the north Cascadia drilling transect of IODP Expedition 311 AN - 50868145; 2007-101797 AB - Between 1999 and 2004, new seismic data became available for the study of gas hydrates on the northern Cascadia margin. These data consist of multi- and single-channel data with two- and partly three-dimensional subsurface coverage and were acquired and used in support of the proposal for Integrated Ocean Drilling Program (IODP) Expedition 311 carried out in 2005. The working area lies across the continental slope off the coast of central Vancouver Island, British Columbia, Canada, with water depths ranging from 2600 m in the trench to 500 m on the upper slope, where it is well above the minimum depth for gas hydrate stability. This paper gives the details of the data acquisition and conventional processing and then focuses on describing the new data at six individual sites along a transect across the gas hydrate zone. Five of the sites were drilled during the Expedition 311. The transect of sites commences at the almost undeformed incoming sediments seaward of the region where gas hydrates are observed; these ocean basin sediments were drilled at a site 40 km southeast during Ocean Drilling Program (ODP) Leg 146. The transect continues up the continental slope into the area of hydrate stability, with a site on top of the frontal accretionary ridge where normal faulting indicates margin parallel extension; a site in the first slope basin overlying a buried ridge near a reflectivity wipe-out zone; a site adjacent to Site 889 of Leg 146 and therefore acting as a tie hole; the most landward site at the shallowest end of the hydrate stability field; and a cold vent site at one of several blank zones close to a bright spot region in the seismic records. JF - Proceedings of the Integrated Ocean Drilling Program AU - Scherwath, M AU - Riedel, Michael AU - Spence, G D AU - Hyndman, R D AU - Reidel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi Y1 - 2005 PY - 2005 DA - 2005 SP - 25 PB - IODP Management International, Washington, DC VL - 311 KW - East Pacific KW - seismic profiles KW - Northeast Pacific KW - geophysical surveys KW - gas hydrates KW - geophysical methods KW - Integrated Ocean Drilling Program KW - cores KW - seismic methods KW - marine sediments KW - North Pacific KW - Pacific Ocean KW - sediments KW - surveys KW - geophysical profiles KW - ocean floors KW - Cascadia subduction zone KW - Expedition 311 KW - 20:Applied geophysics KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50868145?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Data+report%3B+seismic+structure+beneath+the+north+Cascadia+drilling+transect+of+IODP+Expedition+311&rft.au=Scherwath%2C+M%3BRiedel%2C+Michael%3BSpence%2C+G+D%3BHyndman%2C+R+D%3BReidel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi&rft.aulast=Scherwath&rft.aufirst=M&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.110.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 14 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sects. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Cascadia subduction zone; cores; East Pacific; Expedition 311; gas hydrates; geophysical methods; geophysical profiles; geophysical surveys; Integrated Ocean Drilling Program; marine sediments; North Pacific; Northeast Pacific; ocean floors; Pacific Ocean; sediments; seismic methods; seismic profiles; surveys DO - http://dx.doi.org/10.2204/iodp.proc.311.110.2006 ER - TY - JOUR T1 - Investigation of brine geochemistry and implications for geologic sequestration of CO (sub 2) in deep sedimentary basins AN - 50549389; 2009-002593 JF - Abstracts - AAPG, Eastern Section Meeting AU - Sass, Bruce AU - Gupta, Neeraj AU - Jagucki, Phil AU - Sminchak, Joel AU - Massey-Norton, John AU - Spane, Frank AU - Hohm, Mike Y1 - 2005 PY - 2005 DA - 2005 EP - unpaginated PB - American Association of Petroleum Geologists. Eastern Section, Tulsa, OK VL - 2005 KW - United States KW - petroleum exploration KW - isotopes KW - sedimentary basins KW - well-logging KW - sandstone KW - Rose Run Sandstone KW - petroleum KW - fluid phase KW - stable isotopes KW - reservoir rocks KW - deep-seated structures KW - carbon dioxide KW - sedimentary rocks KW - major elements KW - lower Paleozoic KW - Appalachian Basin KW - carbon KW - Ohio River valley KW - basins KW - chemical composition KW - geochemistry KW - West Virginia KW - North America KW - carbon sequestration KW - underground storage KW - Paleozoic KW - isotope ratios KW - C-13/C-12 KW - depth KW - brines KW - cap rocks KW - reservoir properties KW - clastic rocks KW - permeability KW - 29A:Economic geology, geology of energy sources KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50549389?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+-+AAPG%2C+Eastern+Section+Meeting&rft.atitle=Investigation+of+brine+geochemistry+and+implications+for+geologic+sequestration+of+CO+%28sub+2%29+in+deep+sedimentary+basins&rft.au=Sass%2C+Bruce%3BGupta%2C+Neeraj%3BJagucki%2C+Phil%3BSminchak%2C+Joel%3BMassey-Norton%2C+John%3BSpane%2C+Frank%3BHohm%2C+Mike&rft.aulast=Sass&rft.aufirst=Bruce&rft.date=2005-01-01&rft.volume=2005&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+-+AAPG%2C+Eastern+Section+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.net/documents/abstracts/2005eastern/abstracts/sass.htm LA - English DB - GeoRef N1 - Conference title - ESAAPG 2005 N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - OK N1 - SuppNotes - Accessed on Dec. 19, 2006 N1 - Last updated - 2016-10-25 N1 - CODEN - #06714 N1 - SubjectsTermNotLitGenreText - Appalachian Basin; basins; brines; C-13/C-12; cap rocks; carbon; carbon dioxide; carbon sequestration; chemical composition; clastic rocks; deep-seated structures; depth; fluid phase; geochemistry; isotope ratios; isotopes; lower Paleozoic; major elements; North America; Ohio River valley; Paleozoic; permeability; petroleum; petroleum exploration; reservoir properties; reservoir rocks; Rose Run Sandstone; sandstone; sedimentary basins; sedimentary rocks; stable isotopes; underground storage; United States; well-logging; West Virginia ER - TY - JOUR T1 - Proceedings of the Integrated Ocean Drilling Program; Cascadia margin gas hydrates; Expedition 311 of the riserless drilling platform; Balboa, Panama, to Victoria, British Columbia (Canada); Sites U1325-U1329; 28 August-28 October 2005 AN - 50479888; 2007-101788 JF - Proceedings of the Integrated Ocean Drilling Program AU - Reidel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi Y1 - 2005 PY - 2005 DA - 2005 EP - variously paginated PB - IODP Management International, Washington, DC VL - 311 KW - East Pacific KW - lithostratigraphy KW - continental margin KW - petrology KW - Northeast Pacific KW - gas hydrates KW - marine geology KW - IODP Site U1326 KW - IODP Site U1327 KW - Integrated Ocean Drilling Program KW - IODP Site U1329 KW - cores KW - marine sediments KW - North Pacific KW - IODP Site U1325 KW - Pacific Ocean KW - sediments KW - ocean floors KW - Cascadia subduction zone KW - geochemistry KW - Expedition 311 KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50479888?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Reidel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi&rft.aulast=Reidel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program%3B+Cascadia+margin+gas+hydrates%3B+Expedition+311+of+the+riserless+drilling+platform%3B+Balboa%2C+Panama%2C+to+Victoria%2C+British+Columbia+%28Canada%29%3B+Sites+U1325-U1329%3B+28+August-28+October+2005&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program%3B+Cascadia+margin+gas+hydrates%3B+Expedition+311+of+the+riserless+drilling+platform%3B+Balboa%2C+Panama%2C+to+Victoria%2C+British+Columbia+%28Canada%29%3B+Sites+U1325-U1329%3B+28+August-28+October+2005&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - SuppNotes - Accessed on Aug. 3, 2007; individual chapters are cited separately N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Cascadia subduction zone; continental margin; cores; East Pacific; Expedition 311; gas hydrates; geochemistry; Integrated Ocean Drilling Program; IODP Site U1325; IODP Site U1326; IODP Site U1327; IODP Site U1329; lithostratigraphy; marine geology; marine sediments; North Pacific; Northeast Pacific; ocean floors; Pacific Ocean; petrology; sediments DO - http://dx.doi.org/10.2204/iodp.proc.311.2006 ER - TY - JOUR T1 - Carbon sequestration in flood basalts; an overlooked sequestration option AN - 50434596; 2009-047894 AB - Flood basalts are an overlooked but potentially important host medium for geologic sequestration of anthropogenic CO (sub 2.) Most lava flows have flow tops that are porous, permeable, and have enormous capacity for storage of CO (sub 2) . Major flood basalts exist in the U.S. and India. Approximately 25% of India's current coal-fueled power plants are located on or in close proximity to the Deccan Traps. In the U.S., over $400M has been invested in characterizing flood basalts in the Pacific Northwest that provides a unique geological database from which to assess the potential of basalt flows for carbon sequestration. For the Columbia River Basalt Group alone, conservative estimates of storage capacity are in excess of 100 GtCO (sub 2) . Laboratory experiments confirm rapid chemical reaction of CO (sub 2) -saturated pore water with basalts to form stable carbonate minerals. Supercomputer simulations of CO (sub 2) injections on the scale of about 100 km (super 2) show that dense low-permeability basalt rock overlying sequential flows act as effective seals allowing time for the mineralization reactions to occur. Mineralization rates actually may be controlled by hydrodynamic mixing processes in vesicular basalts, not the kinetics of rock-water reactions. Preliminary studies shows that several already existing boreholes located on the Hanford site in Washington State could be used for CO (sub 2) injections to validate the laboratory findings on mineralization and CO (sub 2) containment in a field setting. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - McGrail, B Peter AU - Schaef, H Todd AU - Reidel, Stephen P AU - Dooley, James J AU - Anonymous Y1 - 2005 PY - 2005 DA - 2005 SP - 1 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 14 KW - United States KW - flood basalts KW - Washington KW - carbon sequestration KW - volcanic rocks KW - igneous rocks KW - host rocks KW - Columbia River Basalt Group KW - Hanford Site KW - gas storage KW - Miocene KW - reservoir rocks KW - Cenozoic KW - Tertiary KW - Neogene KW - basalts KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50434596?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.atitle=Carbon+sequestration+in+flood+basalts%3B+an+overlooked+sequestration+option&rft.au=McGrail%2C+B+Peter%3BSchaef%2C+H+Todd%3BReidel%2C+Stephen+P%3BDooley%2C+James+J%3BAnonymous&rft.aulast=McGrail&rft.aufirst=B&rft.date=2005-01-01&rft.volume=14&rft.issue=&rft.spage=A90&rft.isbn=&rft.btitle=&rft.title=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AAPG 2005 annual convention N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2009-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - basalts; carbon sequestration; Cenozoic; Columbia River Basalt Group; flood basalts; gas storage; Hanford Site; host rocks; igneous rocks; Miocene; Neogene; reservoir rocks; Tertiary; United States; volcanic rocks; Washington ER - TY - JOUR T1 - A new method for enhanced production of gas hydrates with carbon dioxide AN - 50416715; 2009-055508 AB - Presently, depressurization, thermal stimulation, inhibitor injection, or a combination of these methods have been considered as possible means of gas hydrate production. A new method for enhanced gas hydrate recovery (EGHR) is described in this paper that takes advantage of the physical and thermodynamic properties of mixtures in the H (sub 2) O-CO (sub 2) system combined with controlled multiphase flow, heat, and mass transport processes in hydrate-bearing porous media. The key steps in the process have been validated in laboratory-scale experiments. The method is attractive from a climate change perspective in that injected CO (sub 2) is permanently sequestered as a solid gas hydrate as part of the production process. Additionally, refilling pore space with CO (sub 2) hydrate is expected to maintain the mechanical stability of gas producing sediments, thus enhancing safety during gas production from both terrestrial and marine environments. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - McGrail, B Peter AU - Schaef, H Todd AU - White, Mark D AU - Zhu, Tao AU - Hunter, Robert B AU - Anonymous Y1 - 2005 PY - 2005 DA - 2005 SP - 1 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 14 KW - laboratory studies KW - experimental studies KW - carbon sequestration KW - gas hydrates KW - natural gas KW - petroleum KW - enhanced recovery KW - thermodynamic properties KW - production KW - new methods KW - carbon dioxide KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50416715?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.atitle=A+new+method+for+enhanced+production+of+gas+hydrates+with+carbon+dioxide&rft.au=McGrail%2C+B+Peter%3BSchaef%2C+H+Todd%3BWhite%2C+Mark+D%3BZhu%2C+Tao%3BHunter%2C+Robert+B%3BAnonymous&rft.aulast=McGrail&rft.aufirst=B&rft.date=2005-01-01&rft.volume=14&rft.issue=&rft.spage=A90&rft.isbn=&rft.btitle=&rft.title=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AAPG 2005 annual convention N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2009-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbon sequestration; enhanced recovery; experimental studies; gas hydrates; laboratory studies; natural gas; new methods; petroleum; production; thermodynamic properties ER - TY - JOUR T1 - CARBON NANOTUBES (CNTs) FOR THE DEVELOPMENT OF ELECTROCHEMICAL BIOSENSORS AN - 21112565; 11188751 AB - Carbon nanotube (CNT) is a very attractive material for the development of biosensors because of its capability to provide strong electrocatalytic activity and minimize surface fouling of the sensors. This article reviews our recent developments of oxidase- and dehydrogenase-amperometric biosensors based on the immobilization of CNTs, the co-immobilization of enzymes on the CNTs/Nafion or the CNT/Teflon composite materials, or the attachment of enzymes on the controlled-density aligned CNT-nanoelectrode arrays. The excellent electrocatalytic activities of the CNTs on the redox reactions of hydrogen peroxide, nicotinamide adenine dinucleotide (NADH), and homocysteine have been demonstrated. Successful applications of the CNT-based biosensors reviewed herein include the low-potential detections of glucose, organophosphorus compounds, and alcohol. JF - Frontiers in Bioscience AU - Lin, Y AU - Yantasee, W AU - Wang, J AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA Y1 - 2005 PY - 2005 DA - 2005 SP - 492 EP - 505 VL - 10 SN - 1093-9946, 1093-9946 KW - Biotechnology and Bioengineering Abstracts KW - Fouling KW - Organophosphorus compounds KW - composite materials KW - NADH KW - Glucose KW - Enzymes KW - Biosensors KW - Carbon KW - NAD KW - Hydrogen peroxide KW - Reviews KW - alcohols KW - nanotubes KW - Immobilization KW - homocysteine KW - W 30955:Biosensors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21112565?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Frontiers+in+Bioscience&rft.atitle=CARBON+NANOTUBES+%28CNTs%29+FOR+THE+DEVELOPMENT+OF+ELECTROCHEMICAL+BIOSENSORS&rft.au=Lin%2C+Y%3BYantasee%2C+W%3BWang%2C+J&rft.aulast=Lin&rft.aufirst=Y&rft.date=2005-01-01&rft.volume=10&rft.issue=&rft.spage=492&rft.isbn=&rft.btitle=&rft.title=Frontiers+in+Bioscience&rft.issn=10939946&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Biosensors; Carbon; nanotubes; Enzymes; composite materials; Hydrogen peroxide; alcohols; Glucose; NAD; Reviews; homocysteine; Immobilization; Fouling; Organophosphorus compounds; NADH ER - TY - JOUR T1 - Characterization of the human blood plasma proteome AN - 20858978; 6488116 AB - We describe methods for broad characterization of the human plasma proteome. The combination of stepwise immunoglobulin G (IgG) and albumin protein depletion by affinity chromatography and ultrahigh-efficiency capillary liquid chromatography separations coupled to ion trap-tandem mass spectrometry enabled identification of 2392 proteins from a single plasma sample with an estimated confidence level of > 94%, and an additional 2198 proteins with an estimated confidence level of 80%. The relative abundances of the identified proteins span a range of over eight orders of magnitude in concentration (< 30 pg/mL to similar to 30 mg/mL), facilitated by the attomole-level sensitivity of the analysis methods. More than 80% of the observed proteins demonstrate interactions with IgG and/or albumin, and the human plasma protein loss in the affinity chromatography/strong cation exchange/reversed-phase liquid chromatography-tandem mass spectrometry methodology was investigated in detail. The results of this study provide a basis for a wide range of plasma proteomics studies, including broad quantitation of relative abundances in comparative studies of the identification of novel protein disease markers, as well as further studies of protein-protein interactions. JF - Proteomics AU - Shen, Yufeng AU - Kim, Jeongkwon AU - Strittmatter, Eric F AU - Jacobs, Jon M AU - Camp, David GII AU - Fang, Ruihua AU - Tolie, Nikola AU - Moore, Ronald J AU - Smith, Richard D AD - Biological Sciences Division and Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, USA, rds@pnl.gov Y1 - 2005 PY - 2005 DA - 2005 SP - 4034 EP - 4045 PB - Wiley-VCH, Postfach 101161 Weinheim 69451 Germany, [mailto:info@wiley-vch.de], [URL:http://www.wiley-vch.de/publish/en/] VL - 5 IS - 15 SN - 1615-9853, 1615-9853 KW - Biotechnology and Bioengineering Abstracts KW - Capillary LC KW - 2-D LC KW - Human plasma KW - MS/MS KW - Affinity chromatography KW - Plasma proteins KW - Blood KW - Cations KW - Liquid chromatography KW - Albumin KW - Immunoglobulin G KW - proteomics KW - Quantitation KW - Mass spectroscopy KW - Protein interaction KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20858978?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proteomics&rft.atitle=Characterization+of+the+human+blood+plasma+proteome&rft.au=Shen%2C+Yufeng%3BKim%2C+Jeongkwon%3BStrittmatter%2C+Eric+F%3BJacobs%2C+Jon+M%3BCamp%2C+David+GII%3BFang%2C+Ruihua%3BTolie%2C+Nikola%3BMoore%2C+Ronald+J%3BSmith%2C+Richard+D&rft.aulast=Shen&rft.aufirst=Yufeng&rft.date=2005-01-01&rft.volume=5&rft.issue=15&rft.spage=4034&rft.isbn=&rft.btitle=&rft.title=Proteomics&rft.issn=16159853&rft_id=info:doi/10.1002%2Fpmic.200401246 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-09-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Plasma proteins; Affinity chromatography; Blood; Cations; Liquid chromatography; Albumin; Immunoglobulin G; proteomics; Quantitation; Protein interaction; Mass spectroscopy DO - http://dx.doi.org/10.1002/pmic.200401246 ER - TY - JOUR T1 - Measurement and Prediction of Deep Drainage from Bare Sediments at a Semiarid Site AN - 19934140; 6495467 AB - In desert environments, nonvegetated (bare) soils and sediments can act as recharge basins, allowing water infiltration but restricting evaporation. When such sediments are located over buried wastes, drainage can transport vadose zone contamination downward to groundwater. Lysimeters were used to quantify drainage from bare sediments at the U.S. Department of Energy's Hanford Site in Washington state, USA. Drainage varied widely from zero to more than half of the annual precipitation for sediments ranging from fine silts to coarse rock fragments. Decade-long drainage records were used to develop two empirical models relating annual drainage and textural properties of bare sediments. A 22- yr drainage record for bare, coarse sand was tested, and the calibration developed for the past 10 years (1995-2004) was found to reliably predict drainage from the previous 12 years. The texture models were also compared against Darcy's Law drainage estimates (i.e., unsaturated hydraulic conductivity) for coarse sand and found to outperform Darcy's Law estimates of the long-term drainage average. The texture models reasonably predicted annual drainage rates for bare sediments containing significant fines (materials less than 50 mu m), but significantly overpredicted drainage rates for clean rock and gravels with little or no fines. The failure of the textural models with coarse materials containing minimal fines was attributed to advective drying. Drainage predictions using the textural models indicate that to minimize drainage only modest quantities of fines need to be added to the coarse sediments to substantially reduce the potential for groundwater contamination. JF - Vadose Zone Journal AU - Gee, G W AU - Keller, J M AU - Ward, AL AD - Pacific Northwest National Laboratory, Box 999, K9-36, Richland, WA 99352, jason.keller@pnl.gov Y1 - 2005 PY - 2005 DA - 2005 SP - 32 EP - 40 PB - Soil Science Society of America, 677 South Segoe Rd Maxison WI 53711 USA, [URL:http://www.soils.org/] VL - 4 IS - 1 KW - Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Hydraulics KW - Evaporation KW - Basins KW - Soil KW - USA, Washington KW - Calibrations KW - Lysimeters KW - Sediment Contamination KW - Testing Procedures KW - Wastes KW - Silt KW - Model Studies KW - Rocks KW - Infiltration KW - Groundwater pollution KW - Groundwater KW - Prediction KW - Recharge Basins KW - Groundwater Pollution KW - Permeability Coefficient KW - Sand KW - Sediment pollution KW - Gravel KW - Sites KW - Drainage KW - Drying KW - silt KW - Precipitation KW - Sediments KW - USA, Washington, Hanford Site KW - Darcys Law KW - Deserts KW - P 2000:FRESHWATER POLLUTION KW - SW 0870:Erosion and sedimentation KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19934140?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Measurement+and+Prediction+of+Deep+Drainage+from+Bare+Sediments+at+a+Semiarid+Site&rft.au=Gee%2C+G+W%3BKeller%2C+J+M%3BWard%2C+AL&rft.aulast=Gee&rft.aufirst=G&rft.date=2005-01-01&rft.volume=4&rft.issue=1&rft.spage=32&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-07-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Soil; Hydraulics; Sediment pollution; Deserts; Evaporation; Sand; Infiltration; Groundwater pollution; Basins; silt; Groundwater; Sediments; Testing Procedures; Recharge Basins; Prediction; Sites; Gravel; Drainage; Wastes; Silt; Drying; Groundwater Pollution; Precipitation; Permeability Coefficient; Model Studies; Darcys Law; Rocks; Calibrations; Sediment Contamination; Lysimeters; USA, Washington; USA, Washington, Hanford Site ER - TY - JOUR T1 - A Comparison of Models Describing Residual NAPL Formation in the Vadose Zone AN - 19898677; 6495461 AB - A major shortcoming of multifluid flow simulators is the inability to predict the retention of nonaqueous phase liquid (NAPL) in the vadose zone after long drainage periods. Recently, three theoretical models: the Wipfler and van der Zee (WVDZ) model; the van Geel and Roy (VGR) model; and the Lenhard, Oostrom, and Dane (LOD) model: have been proposed for describing residual NAPL formation. The WVDZ model assumes a critical total liquid saturation below which all NAPL becomes residual. The VGR and LOD models are extensions of an existing hysteretic relative permeability-saturation-capillary pressure model and assume formation of residual NAPL during NAPL drainage and imbibition, respectively. In this study, we compared model predictions against results of a series of static pressure cell experiments. We found no experimental evidence supporting the WVDZ concept of a critical total liquid saturation. The other two models yielded reasonable predictions. The VGR and LOD models were then incorporated into a multifluid flow simulator, and simulations of two transient column experiments were conducted. Both models performed considerably better than simulations without considering the formation of residual NAPL, underwriting the importance of incorporating this process in simulators. Although the VGR and LOD models are based on different conceptual models, no clear performance differences could be observed when simulation results were compared against the transient experimental data. JF - Vadose Zone Journal AU - Oostrom, M AU - White, MD AU - Lenhard, R J AU - Van Geel, PJ AU - Wietsma, T W AD - Hydrology Group, Pacific Northwest National Laboratory, P.O. Box 999 MS K9- 33, Richland, WA 99352, mart.oostrom@pnl.gov Y1 - 2005 PY - 2005 DA - 2005 SP - 163 EP - 174 PB - Soil Science Society of America, 677 South Segoe Rd Maxison WI 53711 USA, [URL:http://www.soils.org/] VL - 4 IS - 1 KW - Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Prediction KW - Experimental Data KW - Drainage KW - Simulation KW - Groundwater Pollution KW - Saturation KW - Retention KW - Model Studies KW - nonaqueous phase liquids KW - Performance Evaluation KW - Nonaqueous Phase Liquids KW - Nonaqueous phase liquids KW - Zones KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19898677?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=A+Comparison+of+Models+Describing+Residual+NAPL+Formation+in+the+Vadose+Zone&rft.au=Oostrom%2C+M%3BWhite%2C+MD%3BLenhard%2C+R+J%3BVan+Geel%2C+PJ%3BWietsma%2C+T+W&rft.aulast=Oostrom&rft.aufirst=M&rft.date=2005-01-01&rft.volume=4&rft.issue=1&rft.spage=163&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - nonaqueous phase liquids; Nonaqueous phase liquids; Simulation; Prediction; Experimental Data; Performance Evaluation; Nonaqueous Phase Liquids; Drainage; Groundwater Pollution; Retention; Saturation; Zones; Model Studies ER - TY - JOUR T1 - Studying cellular processes and detecting disease with protein microarrays AN - 19448058; 6891893 AB - Protein microarrays are a rapidly developing analytic tool with diverse applications in biomedical research. These applications include profiling of disease markers or autoimmune responses, understanding molecular pathways, protein modifications, and protein activities. One factor that is driving this expanding usage is the wide variety of experimental formats that protein microarrays can take. In this review, we provide a short, conceptual overview of the different approaches for protein microarray. We then examine some of the most significant applications of these microarrays to date, with an emphasis on how global protein analyses can be used to facilitate biomedical research. JF - Drug Metabolism Reviews AU - Zangar, R C AU - Varnum, S M AU - Bollinger, N AD - Pacific Northwest National Laboratory, 902 Battelle Blvd., P7-56, Richland, WA 99352, USA, richard.zangar@pnl.gov Y1 - 2005 PY - 2005 DA - 2005 SP - 473 EP - 487 VL - 37 IS - 3 SN - 0360-2532, 0360-2532 KW - Biotechnology and Bioengineering Abstracts KW - Drug metabolism KW - Reviews KW - Protein arrays KW - W 30915:Pharmaceuticals & Vaccines UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19448058?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Drug+Metabolism+Reviews&rft.atitle=Studying+cellular+processes+and+detecting+disease+with+protein+microarrays&rft.au=Zangar%2C+R+C%3BVarnum%2C+S+M%3BBollinger%2C+N&rft.aulast=Zangar&rft.aufirst=R&rft.date=2005-01-01&rft.volume=37&rft.issue=3&rft.spage=473&rft.isbn=&rft.btitle=&rft.title=Drug+Metabolism+Reviews&rft.issn=03602532&rft_id=info:doi/10.1080%2F03602530500205309 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Protein arrays; Reviews; Drug metabolism DO - http://dx.doi.org/10.1080/03602530500205309 ER - TY - JOUR T1 - A proteomic study of the HUPO Plasma Proteome Project's pilot samples using an accurate mass and time tag strategy AN - 19441226; 6931586 AB - Characterization of the human blood plasma proteome is critical to the discovery of routinely useful clinical biomarkers. We used an accurate mass and time (AMT) tag strategy with high-resolution mass accuracy cLC-FT-ICR MS to perform a global proteomic analysis of pilot study samples as part of the HUPO Plasma Proteome Project. HUPO reference serum and citrated plasma samples from African Americans, Asian Americans, and Caucasian Americans were analyzed, in addition to a Pacific Northwest National Laboratory reference serum and plasma. The AMT tag strategy allowed us to leverage two previously published "shotgun" proteomics experiments to perform global analyses on these samples in triplicate in less than 4 days total analysis time. A total of 722 (22% with multiple peptide identifications) International Protein Index redundant proteins, or 377 protein families by ProteinProphet, were identified over the six individual HUPO serum and plasma samples. The samples yielded a similar number of identified redundant proteins in the plasma samples (average 446 +/- 23) as found in the serum samples (average 440 +/- 20). These proteins were identified by an average of 956 +/- 35 unique peptides in plasma and 930 +/- 11 unique peptides in serum. In addition to this high-throughput analysis, the AMT tag approach was used with a Z-score normalization to compare relative protein abundances. This analysis highlighted both known differences in serum and citrated plasma such as fibrinogens, and reproducible differences in peptide abundances from proteins such as soluble activin receptor-like kinase 7b and glycoprotein m6b. The AMT tag strategy not only improved our sample throughput but also provided a basis for estimated quantitation. JF - Proteomics AU - Adkins, Joshua N AU - Monroe, Matthew E AU - Auberry, Kenneth J AU - Shen, Yufeng AU - Jacobs, Jon M AU - Camp II, David G AU - Vitzthum, Frank AU - Rodland, Karin D AU - Zangar, Richard C AU - Smith, Richard D AU - Pounds, Joel G AD - Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA, joel.pounds@pnl.gov Y1 - 2005 PY - 2005 DA - 2005 SP - 3454 EP - 3466 PB - Wiley-VCH, Postfach 101161 Weinheim 69451 Germany, [mailto:info@wiley-vch.de], [URL:http://www.wiley-vch.de/publish/en/] VL - 5 IS - 13 SN - 1615-9853, 1615-9853 KW - Biotechnology and Bioengineering Abstracts KW - Blood KW - Cluster analysis KW - HUPO KW - cLC-FT-ICR MS KW - Mass spectrometry KW - Plasma KW - Serum KW - Activin KW - Fibrinogen KW - protein families KW - proteomics KW - Glycoproteins KW - biomarkers KW - Quantitation KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19441226?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proteomics&rft.atitle=A+proteomic+study+of+the+HUPO+Plasma+Proteome+Project%27s+pilot+samples+using+an+accurate+mass+and+time+tag+strategy&rft.au=Adkins%2C+Joshua+N%3BMonroe%2C+Matthew+E%3BAuberry%2C+Kenneth+J%3BShen%2C+Yufeng%3BJacobs%2C+Jon+M%3BCamp+II%2C+David+G%3BVitzthum%2C+Frank%3BRodland%2C+Karin+D%3BZangar%2C+Richard+C%3BSmith%2C+Richard+D%3BPounds%2C+Joel+G&rft.aulast=Adkins&rft.aufirst=Joshua&rft.date=2005-01-01&rft.volume=5&rft.issue=13&rft.spage=3454&rft.isbn=&rft.btitle=&rft.title=Proteomics&rft.issn=16159853&rft_id=info:doi/10.1002%2Fpmic.200401333 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2015-04-01 N1 - SubjectsTermNotLitGenreText - Activin; Blood; Fibrinogen; protein families; Glycoproteins; proteomics; Quantitation; biomarkers DO - http://dx.doi.org/10.1002/pmic.200401333 ER - TY - JOUR T1 - Effect of Culture Conditions on Microorganism Identification by Matrix-Assisted Laser Desorption Ionization Mass Spectrometry AN - 17803340; 6164470 AB - Matrix-assisted laser desorption ionization-time-of-flight mass spectrometry (MALDI-TOF MS) has been used to identify bacteria based upon protein signatures. This research shows that while some different proteins are produced by vegetative bacteria when they are cultured in different growth media, positive identification with MALDI-TOF MS is still possible with the protocol established at the Pacific Northwest National Laboratory A core set of small proteins remain constant under at least four different culture media conditions and blood agar plates, including minimal medium M9, rich media, tryptic soy broth (TSB) or Luria-Bertani (LB) broth, and blood agar plates, such that analysis of the intact cells by matrix- assisted laser desorption/ionization mass spectrometry allows for consistent identification. JF - Applied and Environmental Microbiology AU - Valentine, Nancy AU - Wunschel, Sharon AU - Wunschel, David AU - Petersen, Catherine AU - Wahl, Karen AD - Pacific Northwest National Laboratory, Richland, Washington Y1 - 2005/01// PY - 2005 DA - Jan 2005 SP - 58 EP - 64 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA, [URL:http://www.asm.org/] VL - 71 IS - 1 SN - 0099-2240, 0099-2240 KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Blood KW - Agar KW - Desorption KW - Cores KW - Microorganisms KW - Lasers KW - Cell culture KW - Media (culture) KW - Soybeans KW - A 01116:Bacteria UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17803340?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Effect+of+Culture+Conditions+on+Microorganism+Identification+by+Matrix-Assisted+Laser+Desorption+Ionization+Mass+Spectrometry&rft.au=Valentine%2C+Nancy%3BWunschel%2C+Sharon%3BWunschel%2C+David%3BPetersen%2C+Catherine%3BWahl%2C+Karen&rft.aulast=Valentine&rft.aufirst=Nancy&rft.date=2005-01-01&rft.volume=71&rft.issue=1&rft.spage=58&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Agar; Blood; Desorption; Cores; Microorganisms; Cell culture; Lasers; Media (culture); Soybeans ER - TY - JOUR T1 - Chloride Mass Balance -- Cautions in Predicting Increased Recharge Rates AN - 17661288; 6495470 AB - The chloride mass balance (CMB) method has been used extensively to estimate recharge in arid and semiarid environments. Required data include estimates of annual precipitation, total Cl super(-) input (from dry fallout and precipitation), and pore water Cl super(-) concentrations. Typically, CMB has been used to estimate ancient recharge, but recharge from recent land-use change has also been documented. Recharge rates below a few millimeters per year are reliably detected with CMB; however, estimates above a few millimeters per year appear to be less reliable. We tested the CMB method against 26 yr of drainage from a 7.6- m-deep lysimeter at a simulated waste burial ground located on the Department of Energy's Hanford Site in southeastern Washington, USA where removal of vegetation has increased recharge rates. Measured drainage from the lysimeter for the past 26 yr averaged 62 mm yr super(-1). Precipitation averaged 190 mm yr super(- 1) with an estimated Cl super(-) input of 0.22 mg L super(-1). Initial pore water Cl super(- ) concentration was 88 mg L super(-1) and decreased to about 6 mg L super(-1) after 26 yr, while the drainage water Cl super(-) concentration decreased to <1 mg L super(-1). A recharge estimate made using Cl super(-) concentrations in drain water was within 26% of the measured drainage rate. In contrast, recharge estimates using 1:1 (water/soil) extracts were lower than actual values by factors ranging from 2 to 8 or more. The results suggest that when recharge is above a few millimeters per year, soil water extracts can lead to unreliable estimates of recharge. JF - Vadose Zone Journal AU - Gee, G W AU - Zhang, Z F AU - Tyler, S W AU - Albright, W H AU - Singleton, MJ AD - Pacific Northwest National Laboratory, Richland, WA, glendon.gee@pnl.gov Y1 - 2005 PY - 2005 DA - 2005 SP - 72 EP - 78 PB - Soil Science Society of America, 677 South Segoe Rd Maxison WI 53711 USA, [URL:http://www.soils.org/] VL - 4 IS - 1 KW - Aqualine Abstracts; Water Resources Abstracts KW - SW 0880:Chemical processes KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17661288?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Chloride+Mass+Balance+--+Cautions+in+Predicting+Increased+Recharge+Rates&rft.au=Gee%2C+G+W%3BZhang%2C+Z+F%3BTyler%2C+S+W%3BAlbright%2C+W+H%3BSingleton%2C+MJ&rft.aulast=Gee&rft.aufirst=G&rft.date=2005-01-01&rft.volume=4&rft.issue=1&rft.spage=72&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-12-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Evaluating concentration estimation errors in ELISA microarray experiments AN - 17531433; 6234346 AB - Background: Enzyme-linked immunosorbent assay (ELISA) is a standard immunoassay to estimate a protein's concentration in a sample. Deploying ELISA in a microarray format permits simultaneous estimation of the concentrations of numerous proteins in a small sample. These estimates, however, are uncertain due to processing error and biological variability. Evaluating estimation error is critical to interpreting biological significance and improving the ELISA microarray process. Estimation error evaluation must be automated to realize a reliable high-throughput ELISA microarray system. In this paper, we present a statistical method based on propagation of error to evaluate concentration estimation errors in the ELISA microarray process. Although propagation of error is central to this method and the focus of this paper, it is most effective only when comparable data are available. Therefore, we briefly discuss the roles of experimental design, data screening, normalization, and statistical diagnostics when evaluating ELISA microarray concentration estimation errors. Results: We use an ELISA microarray investigation of breast cancer biomarkers to illustrate the evaluation of concentration estimation errors. The illustration begins with a description of the design and resulting data, followed by a brief discussion of data screening and normalization. In our illustration, we fit a standard curve to the screened and normalized data, review the modeling diagnostics, and apply propagation of error. We summarize the results with a simple, three-panel diagnostic visualization featuring a scatterplot of the standard data with logistic standard curve and 95% confidence intervals, an annotated histogram of sample measurements, and a plot of the 95% concentration coefficient of variation, or relative error, as a function of concentration. Conclusions: This statistical method should be of value in the rapid evaluation and quality control of high-throughput ELISA microarray analyses. Applying propagation of error to a variety of ELISA microarray concentration estimation models is straightforward. Displaying the results in the three-panel layout succinctly summarizes both the standard and sample data while providing an informative critique of applicability of the fitted model, the uncertainty in concentration estimates, and the quality of both the experiment and the ELISA microarray process. JF - BMC Bioinformatics AU - Daly, Don Simone AU - White, Amanda M AU - Varnum, Susan M AU - Anderson, Kevin K AU - Zangar, Richard C AD - Statistical and Mathematical Sciences, Pacific Northwest National Laboratory, PO Box 999, Richland, WA, USA, DS.Daly@PNL.gov Y1 - 2005 PY - 2005 DA - 2005 PB - BioMed Central Ltd., Middlesex House 34-42 Cleveland Street London W1T 4LB UK, [mailto:info@biomedcentral.com], [URL:http://www.biomedcentral.com] VL - 6 KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - Enzyme-linked immunosorbent assay KW - Mathematical models KW - Quality control KW - Reviews KW - Statistical analysis KW - Breast cancer KW - Bioinformatics KW - Immunoassays KW - biomarkers KW - W4 140:Bioinformatics & Computers in Health & Medicine KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17531433?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=BMC+Bioinformatics&rft.atitle=Evaluating+concentration+estimation+errors+in+ELISA+microarray+experiments&rft.au=Daly%2C+Don+Simone%3BWhite%2C+Amanda+M%3BVarnum%2C+Susan+M%3BAnderson%2C+Kevin+K%3BZangar%2C+Richard+C&rft.aulast=Daly&rft.aufirst=Don&rft.date=2005-01-01&rft.volume=6&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=BMC+Bioinformatics&rft.issn=1471-2105&rft_id=info:doi/10.1186%2F1471-2105-6-17 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Enzyme-linked immunosorbent assay; Statistical analysis; Mathematical models; Reviews; Bioinformatics; biomarkers; Breast cancer; Immunoassays; Quality control DO - http://dx.doi.org/10.1186/1471-2105-6-17 ER - TY - BOOK T1 - NMR methods for in-situ biofilm metabolism studies: spatial and temporal resolved measurements AN - 17436174; 6571507 AB - We are developing novel nuclear magnetic resonance (NMR) microscopy, spectroscopy and combined NMR/optical techniques for the study of biofilms under known, controlled growth conditions. Objectives include: time and depth-resolved metabolite concentrations with isotropic spatial resolution on the order of 10 microns, metabolic pathways and flux rates, mass transport and ultimately their correlation with gene expression by optical microscopy in biofilms. We describe the implementation of ex-situ grown biofilms to improve growth environment control and NMR analysis. In-situ NMR depth resolved metabolite profiling techniques are introduced and demonstrated for a Shewanella oneidensis strain MR-1 biofilm. Finally, initial combined confocal fluorescence and magnetic resonance images are shown for a GFP-labeled Shewanella biofilm. These methods are equally applicable to other biofilm systems of interest; thus they may provide a significant contribution toward the understanding of adherent cell metabolism. JF - Water Science & Technology AU - Majors, P D AU - McLean, J S AU - Fredrickson, J K AU - Wind, R A A2 - Lewandowski, Z A2 - Beyenal, H (eds) Y1 - 2005 PY - 2005 DA - 2005 SP - 6 EP - 12 PB - IWA Publishing, Alliance House 12 Caxton Street London SW1H 0QS UK SN - 1843395525 KW - Microbiology Abstracts B: Bacteriology; Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Aqualine Abstracts; Water Resources Abstracts KW - Adherent cells KW - Shewanella oneidensis KW - Biofilms KW - SW 5040:Data acquisition KW - A 01113:General KW - J 02320:Cell Biology KW - AQ 00003:Monitoring and Analysis of Water and Wastes KW - W 30965:Miscellaneous, Reviews KW - W4 210:Bioremediation, Bioreactors & BioCycling UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17436174?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Incorporating+sub-grid+spatial+variabilities+into+subsurface+flow+parameterizations+for+land+surface+modeling+in+ungauged+basins&rft.au=Huang%2C+M%3BLiang%2C+X%3BLeung%2C+R+L%3BAnonymous&rft.aulast=Huang&rft.aufirst=M&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-04-01 N1 - Last updated - 2014-02-11 ER - TY - JOUR T1 - Simulation of water balance and forest treatment effects at the H.J. Andrews Experimental Forest AN - 17389115; 6487130 AB - The distributed hydrology soil-vegetation model (DHSVM) was applied to the small watersheds WS1, 2, 3 in H.J. Andrews Experimental Forest, Oregon, and tested for skill in simulating observed forest treatment effects on streamflow. These watersheds, located in the rain-snow transition zone, underwent road and clearcut treatments during 1959-66 and subsequent natural regeneration. DHSVM was applied with 10 m and 1 h resolution to 1958-98, most of the period of record. Water balance for old-growth WS2 indicated that evapotranspiration and streamflow were unlikely to be the only loss terms, and groundwater recharge was included to account for about 12% of precipitation; this term was assumed zero in previous studies. Overall efficiency in simulating hourly streamflow exceeded 0.7, and mean annual error was less than 10%. Model skill decreased at the margins, with overprediction of low flows and underprediction of high flows. However, statistical analyses of simulated and observed peakflows yielded similar characterizations of treatment effects. Primary simulation weaknesses were snowpack accumulation, snowmelt under rain-on-snow conditions, and production of quickflow. This was the first test of DHSVM against observations of both control and treated watersheds in a classic paired-basin study involving a long time period of forest regrowth and hydrologic recovery. JF - Hydrological Processes AU - Waichler, Scott R AU - Wemple, Beverley C AU - Wigmosta, Mark S AD - Pacific Northwest National Laboratory, K9-36, PO Box 999, Richland, WA 99352, USA, scott.waichler@pnl.gov Y1 - 2005 PY - 2005 DA - 2005 SP - 3177 EP - 3199 PB - John Wiley & Sons, Ltd., Baffins Lane Chichester W. Sussex PO19 1UD UK, [mailto:customer@wiley.co.uk], [URL:http://www.wiley.com/] VL - 19 IS - 16 SN - 0885-6087, 0885-6087 KW - Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts KW - DHSVM KW - HJA KW - watershed modelling KW - forest treatment KW - Snowpack KW - Snow melting KW - Statistical analysis KW - Watersheds KW - Forest Hydrology KW - Groundwater recharge KW - Hydrologic Models KW - Statistical Analysis KW - Hydrology KW - USA, Oregon KW - Rain-snow transition KW - Testing Procedures KW - Low Flow KW - Transition Zone KW - Streamflow KW - Evapotranspiration KW - Precipitation KW - Snow cover KW - Water balance KW - Numerical simulations KW - Regeneration KW - High Flow KW - Snowmelt KW - Small Watersheds KW - Accumulation KW - Groundwater Recharge KW - M2 556.51:Drainage Areas (556.51) KW - SW 0860:Water and plants KW - M2 551.578.4:Crystalline (551.578.4) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17389115?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrological+Processes&rft.atitle=Simulation+of+water+balance+and+forest+treatment+effects+at+the+H.J.+Andrews+Experimental+Forest&rft.au=Waichler%2C+Scott+R%3BWemple%2C+Beverley+C%3BWigmosta%2C+Mark+S&rft.aulast=Waichler&rft.aufirst=Scott&rft.date=2005-01-01&rft.volume=19&rft.issue=16&rft.spage=3177&rft.isbn=&rft.btitle=&rft.title=Hydrological+Processes&rft.issn=08856087&rft_id=info:doi/10.1002%2Fhyp.5841 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-06-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Water balance; Snow melting; Groundwater recharge; Numerical simulations; Statistical analysis; Hydrology; Evapotranspiration; Precipitation; Snow cover; Rain-snow transition; Testing Procedures; Snowpack; Low Flow; Transition Zone; Streamflow; Watersheds; Forest Hydrology; Hydrologic Models; High Flow; Regeneration; Snowmelt; Statistical Analysis; Small Watersheds; Groundwater Recharge; Accumulation; USA, Oregon DO - http://dx.doi.org/10.1002/hyp.5841 ER - TY - JOUR T1 - Regional Comparisons of Coastal Sediment Contamination Detected by a Biomarker (P450 HRGS; EPA Method 4425) AN - 16192579; 6159260 AB - Pollution investigations by the Center for Coastal Monitoring and Assessment of the National Oceanic and Atmospheric Administration (NOAA) have been conducted since 1984 and have incorporated extensive biological and chemical analyses. Since 1993, one of the biological tests utilized in these studies has been the biomarker P450HRGS, which is more recently described as EPA Method 4425. Extracts of sediments are applied to a human cell line with a reporter gene (firefly luciferase) at the CYP1A1 site. Light produced by the extracts is a function of the concentrations and potencies of those compounds with an affinity for Ah-receptor (certain polycyclic aromatic hydrocarbons, polychlorinated biphenyls, and dioxins/furans). These compounds are carcinogenic and can produce chronic toxicity, and those containing chlorine are persistent and bioaccumulated. Nineteen coastal regions and 1309 samples from the three U.S. coasts have been evaluated as part of the NOAA investigations. The stratified random sampling approach used by NOAA provides estimates of the areas (km super(2)) of each region containing levels of the compounds above thresholds. From analysis of the database, sediments with concentrations at or below 11 mu g benzo[a]pyrene equivalents (B[a]PEq)/g would not be expected to produce effects on the benthos. At 32 mu g B[a]PEq/g and above there is the potential for impacts on the biota, and above 60 mu g/g, the degradation of the benthic community has been observed. Several of the regional surveys found no samples at or above 60 mu g B[a]PEq/g, but 60% of the samples from New York Harbor (280 km super(2)) were above this level. Analyses of data from Puget Sound and Chesapeake Bay demonstrate an increase in samples above 32 mu g B[a]PEq/g in more populated and industrial regions. Method 4425 serves as both a biomarker, simulating the response of an organism (with CYP1A) exposed to inducing compounds, and as a bioanalytical technique measuring the levels of these chemicals in the samples. A targeted investigation of the distribution of the three important classes of compounds identified by Method 4425 would be more cost-effective by first screening samples by this method before expending substantial funds in the detailed chemical analysis of all samples. JF - Environmental Science & Technology AU - Anderson, J W AU - Hartwell, SI AU - Hameedi, MJ AD - Pacific Northwest National Laboratory, Battelle Marine Sciences Laboratory, 1529 W. Sequim Bay Rd., Sequim, WA 98382, USA, jw.anderson@pnl.gov Y1 - 2005/01/01/ PY - 2005 DA - 2005 Jan 01 SP - 17 EP - 23 VL - 39 IS - 1 SN - 0013-936X, 0013-936X KW - Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Toxicology Abstracts KW - ANW, USA, New York, New York, New York Harbor KW - Chemical Analysis KW - Biomarkers KW - Biota KW - Economics KW - Sediment Contamination KW - Aromatic hydrocarbons KW - PCB KW - Bioindicators KW - Surveys KW - Coastal waters KW - Furans KW - ANW, USA, Chesapeake Bay KW - USA, Washington, Puget Sound KW - EPA KW - Coastal zone KW - Chemical analysis KW - Benthos KW - Molecular structure KW - Pollution monitoring KW - Degradation KW - Polychlorinated Biphenyls KW - Assessments KW - Carcinogenicity KW - Pollutant persistence KW - USA, New York, New York, New York Harbor KW - Sampling KW - PCB compounds KW - Coasts KW - Marine KW - Sediment pollution KW - Polycyclic aromatic hydrocarbons KW - USA, Chesapeake Bay KW - Toxicity KW - biomarkers KW - Harbours KW - Chlorinated hydrocarbons KW - Air pollution KW - Bioaccumulation KW - INE, USA, Washington, Puget Sound KW - SW 3010:Identification of pollutants KW - X 24222:Analytical procedures KW - Q2 09187:Geochemistry of sediments KW - P 1000:MARINE POLLUTION KW - Q5 08502:Methods and instruments KW - AQ 00002:Water Quality KW - O 4060:Pollution - Environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16192579?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Regional+Comparisons+of+Coastal+Sediment+Contamination+Detected+by+a+Biomarker+%28P450+HRGS%3B+EPA+Method+4425%29&rft.au=Anderson%2C+J+W%3BHartwell%2C+SI%3BHameedi%2C+MJ&rft.aulast=Anderson&rft.aufirst=J&rft.date=2005-01-01&rft.volume=39&rft.issue=1&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes049283b LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-10-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Molecular structure; Sediment pollution; Pollution monitoring; Biomarkers; Toxicity; Harbours; Chlorinated hydrocarbons; Coastal zone; Bioaccumulation; Pollutant persistence; Aromatic hydrocarbons; Chemical analysis; PCB; Air pollution; Polycyclic aromatic hydrocarbons; Carcinogenicity; Economics; Furans; Coastal waters; biomarkers; Benthos; Bioindicators; EPA; Biota; PCB compounds; Degradation; Assessments; Polychlorinated Biphenyls; Chemical Analysis; Surveys; Sediment Contamination; Sampling; Coasts; USA, Washington, Puget Sound; ANW, USA, New York, New York, New York Harbor; USA, Chesapeake Bay; INE, USA, Washington, Puget Sound; USA, New York, New York, New York Harbor; ANW, USA, Chesapeake Bay; Marine DO - http://dx.doi.org/10.1021/es049283b ER - TY - JOUR T1 - A new multiscale flow network generation scheme for land surface models AN - 51687509; 2005-060058 JF - Geophysical Research Letters AU - Guo, Jianzhong AU - Xu, Liang AU - Leung, L Ruby Y1 - 2004/12// PY - 2004 DA - December 2004 SP - 4 PB - American Geophysical Union, Washington, DC VL - 31 IS - 23 SN - 0094-8276, 0094-8276 KW - United States KW - scale factor KW - hydrology KW - numerical models KW - slopes KW - landform evolution KW - tortuosity KW - landforms KW - rivers KW - case studies KW - kinematics KW - Oklahoma KW - topography KW - streamflow KW - runoff KW - fluvial features KW - Blue River basin KW - algorithms KW - accuracy KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51687509?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=A+new+multiscale+flow+network+generation+scheme+for+land+surface+models&rft.au=Guo%2C+Jianzhong%3BXu%2C+Liang%3BLeung%2C+L+Ruby&rft.aulast=Guo&rft.aufirst=Jianzhong&rft.date=2004-12-01&rft.volume=31&rft.issue=23&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2004GL021381 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 8 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - accuracy; algorithms; Blue River basin; case studies; fluvial features; hydrology; kinematics; landform evolution; landforms; numerical models; Oklahoma; rivers; runoff; scale factor; slopes; streamflow; topography; tortuosity; United States DO - http://dx.doi.org/10.1029/2004GL021381 ER - TY - JOUR T1 - The role of monitoring in risk-informed assessments involving uncertainty AN - 51493408; 2007-016920 JF - Eos, Transactions, American Geophysical Union AU - Meyer, P D AU - Nicholson, T J AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H13A EP - 0387 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - programs KW - monitoring KW - pollutants KW - decommissioning KW - statistical analysis KW - pollution KW - decision-making KW - calibration KW - indicators KW - remediation KW - models KW - case studies KW - transport KW - risk assessment KW - probability KW - uncertainty KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51493408?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=The+role+of+monitoring+in+risk-informed+assessments+involving+uncertainty&rft.au=Meyer%2C+P+D%3BNicholson%2C+T+J%3BAnonymous&rft.aulast=Meyer&rft.aufirst=P&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - calibration; case studies; decision-making; decommissioning; indicators; models; monitoring; pollutants; pollution; probability; programs; remediation; risk assessment; statistical analysis; transport; uncertainty ER - TY - JOUR T1 - A systematic approach for developing conceptual models of contaminant transport at the Hanford Site AN - 51492576; 2007-016919 JF - Eos, Transactions, American Geophysical Union AU - Murray, C J AU - Last, G V AU - Rohay, V J AU - Schelling, F J AU - Hildebrand, R D AU - Morse, J G AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H13A EP - 0386 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - soils KW - programs KW - U. S. Department of Energy KW - Washington KW - pollutants KW - government agencies KW - waste disposal sites KW - pollution KW - Hanford Site KW - environmental analysis KW - remediation KW - radioactive waste KW - ground water KW - waste management KW - transport KW - soil pollution KW - theoretical models KW - waste disposal KW - water pollution KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51492576?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=A+systematic+approach+for+developing+conceptual+models+of+contaminant+transport+at+the+Hanford+Site&rft.au=Murray%2C+C+J%3BLast%2C+G+V%3BRohay%2C+V+J%3BSchelling%2C+F+J%3BHildebrand%2C+R+D%3BMorse%2C+J+G%3BAnonymous&rft.aulast=Murray&rft.aufirst=C&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - environmental analysis; government agencies; ground water; Hanford Site; pollutants; pollution; programs; radioactive waste; remediation; soil pollution; soils; theoretical models; transport; U. S. Department of Energy; United States; Washington; waste disposal; waste disposal sites; waste management; water pollution ER - TY - JOUR T1 - Geochemical characterization using geophysical data and Markov chain Monte Carlo methods; a case study at the South Oyster bacterial transport site in Virginia AN - 51445926; 2007-043488 JF - Water Resources Research AU - Chen, Jinsong AU - Hubbard, Susan AU - Rubin, Yoram AU - Murray, Chris AU - Roden, Eric AU - Majer, Ernest Y1 - 2004/12// PY - 2004 DA - December 2004 EP - W12412 PB - American Geophysical Union, Washington, DC VL - 40 IS - 12 SN - 0043-1397, 0043-1397 KW - United States KW - hydrology KW - Virginia KW - ground-penetrating radar KW - Monte Carlo analysis KW - statistical analysis KW - kriging KW - geophysical methods KW - radar methods KW - electromagnetic waves KW - mathematical models KW - transport KW - stochastic processes KW - mathematical methods KW - bacteria KW - South Oyster Virginia KW - electromagnetic methods KW - probability KW - Markov chain analysis KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51445926?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Geochemical+characterization+using+geophysical+data+and+Markov+chain+Monte+Carlo+methods%3B+a+case+study+at+the+South+Oyster+bacterial+transport+site+in+Virginia&rft.au=Chen%2C+Jinsong%3BHubbard%2C+Susan%3BRubin%2C+Yoram%3BMurray%2C+Chris%3BRoden%2C+Eric%3BMajer%2C+Ernest&rft.aulast=Chen&rft.aufirst=Jinsong&rft.date=2004-12-01&rft.volume=40&rft.issue=12&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2003WR002883 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 43 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch map N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - bacteria; electromagnetic methods; electromagnetic waves; geophysical methods; ground-penetrating radar; hydrology; kriging; Markov chain analysis; mathematical methods; mathematical models; Monte Carlo analysis; probability; radar methods; South Oyster Virginia; statistical analysis; stochastic processes; transport; United States; Virginia DO - http://dx.doi.org/10.1029/2003WR002883 ER - TY - JOUR T1 - Remote sensing of subsurface microbial transformations AN - 51435832; 2007-054273 JF - Eos, Transactions, American Geophysical Union AU - Williams, K H AU - Ntarlagiannis, D AU - Slater, L AU - Long, P AU - Dohnalkova, A AU - Hubbard, S S AU - Banfield, J F AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract B51F EP - 01 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - biomineralization KW - biomass KW - biochemistry KW - physicochemical properties KW - geophysical methods KW - biostimulation KW - pollution KW - resistivity KW - bioremediation KW - electrochemical properties KW - variations KW - remediation KW - ground water KW - aquifers KW - acoustical methods KW - physical properties KW - dynamics KW - chemical properties KW - ecology KW - water pollution KW - geochemistry KW - remote sensing KW - microorganisms KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51435832?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Remote+sensing+of+subsurface+microbial+transformations&rft.au=Williams%2C+K+H%3BNtarlagiannis%2C+D%3BSlater%2C+L%3BLong%2C+P%3BDohnalkova%2C+A%3BHubbard%2C+S+S%3BBanfield%2C+J+F%3BAnonymous&rft.aulast=Williams&rft.aufirst=K&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - acoustical methods; aquifers; biochemistry; biomass; biomineralization; bioremediation; biostimulation; chemical properties; dynamics; ecology; electrochemical properties; geochemistry; geophysical methods; ground water; microorganisms; physical properties; physicochemical properties; pollution; remediation; remote sensing; resistivity; variations; water pollution ER - TY - JOUR T1 - Effects of river discharge on hyporheic exchange flows in large gravel-bed rivers; an empirical study AN - 51354662; 2007-116349 JF - Eos, Transactions, American Geophysical Union AU - Hanrahan, T P AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H12B EP - 08 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Idaho KW - in situ KW - vertical orientation KW - surface water KW - hyporheic zone KW - rivers KW - flows KW - Hells Canyon KW - gravel-bed streams KW - fluvial features KW - streams KW - Snake River KW - Idaho County Idaho KW - hydraulic conductivity KW - discharge KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51354662?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Effects+of+river+discharge+on+hyporheic+exchange+flows+in+large+gravel-bed+rivers%3B+an+empirical+study&rft.au=Hanrahan%2C+T+P%3BAnonymous&rft.aulast=Hanrahan&rft.aufirst=T&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - discharge; flows; fluvial features; gravel-bed streams; Hells Canyon; hydraulic conductivity; hyporheic zone; Idaho; Idaho County Idaho; in situ; rivers; Snake River; streams; surface water; United States; vertical orientation ER - TY - JOUR T1 - Permeability changes due to secondary mineral precipitation during weathering of low-level radioactive waste glass in the vadose zone AN - 51351892; 2007-116335 JF - Eos, Transactions, American Geophysical Union AU - Bacon, D H AU - Freedman, V L AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H11E EP - 0336 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - solute transport KW - volcanic rocks KW - glasses KW - secondary minerals KW - igneous rocks KW - unsaturated zone KW - simulation KW - weathering KW - radioactive waste KW - transport KW - deposition KW - precipitation KW - hydraulic conductivity KW - waste disposal KW - permeability KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51351892?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Permeability+changes+due+to+secondary+mineral+precipitation+during+weathering+of+low-level+radioactive+waste+glass+in+the+vadose+zone&rft.au=Bacon%2C+D+H%3BFreedman%2C+V+L%3BAnonymous&rft.aulast=Bacon&rft.aufirst=D&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - deposition; glasses; hydraulic conductivity; igneous rocks; permeability; precipitation; radioactive waste; secondary minerals; simulation; solute transport; transport; unsaturated zone; volcanic rocks; waste disposal; weathering ER - TY - JOUR T1 - Tracing and apportioning sources of uranium to the Hanford reach of the Columbia River using uranium isotopes AN - 51281811; 2008-039138 JF - Eos, Transactions, American Geophysical Union AU - Christensen, J N AU - Dresel, P E AU - Conrad, M E AU - Patton, G W AU - DePaolo, D J AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H41I EP - 04 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - alkaline earth metals KW - U. S. Department of Energy KW - Washington KW - isotopes KW - pollutants KW - isotope ratios KW - Columbia River KW - government agencies KW - unsaturated zone KW - pollution KW - Hanford Site KW - drinking water KW - stable isotopes KW - Sr-87/Sr-86 KW - radioactive isotopes KW - Vernita Bridge KW - metals KW - uranium KW - U-238 KW - discharge KW - actinides KW - strontium KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51281811?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Tracing+and+apportioning+sources+of+uranium+to+the+Hanford+reach+of+the+Columbia+River+using+uranium+isotopes&rft.au=Christensen%2C+J+N%3BDresel%2C+P+E%3BConrad%2C+M+E%3BPatton%2C+G+W%3BDePaolo%2C+D+J%3BAnonymous&rft.aulast=Christensen&rft.aufirst=J&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; alkaline earth metals; Columbia River; discharge; drinking water; government agencies; Hanford Site; isotope ratios; isotopes; metals; pollutants; pollution; radioactive isotopes; Sr-87/Sr-86; stable isotopes; strontium; U-238; U. S. Department of Energy; United States; unsaturated zone; uranium; Vernita Bridge; Washington ER - TY - JOUR T1 - Estimation of NAPL/water interfacial areas in well-characterized porous media AN - 51232593; 2008-076843 JF - Eos, Transactions, American Geophysical Union AU - Dobson, R AU - Schroth, M H AU - Oostrom, M AU - Zeyer, J AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H33A EP - 0451 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - tomography KW - experimental studies KW - characterization KW - pollution KW - techniques KW - porous materials KW - porosity KW - reservoir rocks KW - geometry KW - nonaqueous phase liquids KW - models KW - ultrastructure KW - laboratory studies KW - traps KW - tracers KW - algorithms KW - water wells KW - pore water KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51232593?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Estimation+of+NAPL%2Fwater+interfacial+areas+in+well-characterized+porous+media&rft.au=Dobson%2C+R%3BSchroth%2C+M+H%3BOostrom%2C+M%3BZeyer%2C+J%3BAnonymous&rft.aulast=Dobson&rft.aufirst=R&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - algorithms; characterization; experimental studies; geometry; laboratory studies; models; nonaqueous phase liquids; pollution; pore water; porosity; porous materials; reservoir rocks; techniques; tomography; tracers; traps; ultrastructure; water wells ER - TY - JOUR T1 - In situ gaseous treatment and reoxidation studies; implications for vadose zone remediation AN - 51227882; 2008-076812 JF - Eos, Transactions, American Geophysical Union AU - Zhong, L AU - Thornton, E C AU - Oostrom, M AU - Deng, B AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H31D EP - 0446 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - technology KW - numerical models KW - in situ KW - gaseous phase KW - oxidation KW - unsaturated zone KW - soil treatment KW - pollution KW - hydrogen sulfide KW - migration of elements KW - remediation KW - controls KW - chemical reactions KW - water treatment KW - sediments KW - waste disposal KW - mobility KW - permeability KW - disposal barriers KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51227882?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=In+situ+gaseous+treatment+and+reoxidation+studies%3B+implications+for+vadose+zone+remediation&rft.au=Zhong%2C+L%3BThornton%2C+E+C%3BOostrom%2C+M%3BDeng%2C+B%3BAnonymous&rft.aulast=Zhong&rft.aufirst=L&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - chemical reactions; controls; disposal barriers; gaseous phase; hydrogen sulfide; in situ; migration of elements; mobility; numerical models; oxidation; permeability; pollution; remediation; sediments; soil treatment; technology; unsaturated zone; waste disposal; water treatment ER - TY - JOUR T1 - Xenon isotope releases from buried transuranic waste AN - 51227271; 2008-076800 JF - Eos, Transactions, American Geophysical Union AU - Dresel, P E AU - Waichler, S R AU - Kennedy, B M AU - Hayes, J C AU - McIntyre, J I AU - Giles, J R AU - Sondrup, A J AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H31D EP - 0434 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - soils KW - experimental studies KW - isotopes KW - detection limit KW - pollution KW - migration of elements KW - xenon KW - radioactive waste KW - models KW - radioactive isotopes KW - transport KW - noble gases KW - nuclear facilities KW - waste disposal KW - fission KW - underground disposal KW - diffusivity KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51227271?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Xenon+isotope+releases+from+buried+transuranic+waste&rft.au=Dresel%2C+P+E%3BWaichler%2C+S+R%3BKennedy%2C+B+M%3BHayes%2C+J+C%3BMcIntyre%2C+J+I%3BGiles%2C+J+R%3BSondrup%2C+A+J%3BAnonymous&rft.aulast=Dresel&rft.aufirst=P&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - detection limit; diffusivity; experimental studies; fission; isotopes; migration of elements; models; noble gases; nuclear facilities; pollution; radioactive isotopes; radioactive waste; soils; transport; underground disposal; waste disposal; xenon ER - TY - JOUR T1 - Hydrostratigraphic characterization using high-resolution borehole moisture logs and grain-size distribution statistics AN - 51085353; 2008-081349 JF - Eos, Transactions, American Geophysical Union AU - Ward, A L AU - Keller, J M AU - Zhang, Z F AU - Gee, G W AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H23A EP - 1110 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - scale factor KW - aquifer vulnerability KW - moisture KW - characterization KW - preferential flow KW - simulation KW - reservoir rocks KW - ground water KW - size distribution KW - transport KW - chemical properties KW - geochemistry KW - high-resolution methods KW - Washington KW - grain size KW - statistical analysis KW - prediction KW - pollution KW - Hanford Site KW - porous materials KW - migration of elements KW - aquifers KW - models KW - boreholes KW - hydrostratigraphy KW - heterogeneous materials KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51085353?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Hydrostratigraphic+characterization+using+high-resolution+borehole+moisture+logs+and+grain-size+distribution+statistics&rft.au=Ward%2C+A+L%3BKeller%2C+J+M%3BZhang%2C+Z+F%3BGee%2C+G+W%3BAnonymous&rft.aulast=Ward&rft.aufirst=A&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aquifer vulnerability; aquifers; boreholes; characterization; chemical properties; geochemistry; grain size; ground water; Hanford Site; heterogeneous materials; high-resolution methods; hydrostratigraphy; migration of elements; models; moisture; pollution; porous materials; prediction; preferential flow; reservoir rocks; scale factor; simulation; size distribution; statistical analysis; transport; United States; Washington ER - TY - JOUR T1 - Movement and remediation of a volatile, multicomponent DNAPL in a variably-saturated, heterogeneous porous medium AN - 51084725; 2008-081436 JF - Eos, Transactions, American Geophysical Union AU - Oostrom, M AU - Dane, J H AU - Wietsma, T W AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H31B EP - 0371 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Washington KW - pollutants KW - pollution KW - Hanford Site KW - preferential flow KW - fluid dynamics KW - dense nonaqueous phase liquids KW - layered materials KW - remediation KW - nonaqueous phase liquids KW - spatial distribution KW - volatiles KW - transport KW - saturation KW - infiltration KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51084725?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Movement+and+remediation+of+a+volatile%2C+multicomponent+DNAPL+in+a+variably-saturated%2C+heterogeneous+porous+medium&rft.au=Oostrom%2C+M%3BDane%2C+J+H%3BWietsma%2C+T+W%3BAnonymous&rft.aulast=Oostrom&rft.aufirst=M&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - dense nonaqueous phase liquids; fluid dynamics; Hanford Site; infiltration; layered materials; nonaqueous phase liquids; pollutants; pollution; preferential flow; remediation; saturation; spatial distribution; transport; United States; volatiles; Washington ER - TY - JOUR T1 - Quantifying saturation-dependent anisotropy in soil hydraulic conductivity AN - 51084359; 2008-081348 JF - Eos, Transactions, American Geophysical Union AU - Zhang, Z F AU - Ward, A L AU - Gee, G W AU - White, M D AU - Keller, J M AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H23A EP - 1109 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - soils KW - anisotropic materials KW - Washington KW - pollutants KW - connectivity KW - tortuosity KW - pollution KW - Hanford Site KW - porous materials KW - preferential flow KW - simulation KW - models KW - transport KW - saturation KW - hydraulic conductivity KW - anisotropy KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51084359?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Quantifying+saturation-dependent+anisotropy+in+soil+hydraulic+conductivity&rft.au=Zhang%2C+Z+F%3BWard%2C+A+L%3BGee%2C+G+W%3BWhite%2C+M+D%3BKeller%2C+J+M%3BAnonymous&rft.aulast=Zhang&rft.aufirst=Z&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - anisotropic materials; anisotropy; connectivity; Hanford Site; hydraulic conductivity; models; pollutants; pollution; porous materials; preferential flow; saturation; simulation; soils; tortuosity; transport; United States; Washington ER - TY - JOUR T1 - In situ characterization of porosity and permeability changes at high pressure; application to geological sequestration AN - 51083630; 2008-083128 JF - Eos, Transactions, American Geophysical Union AU - McGrail, B P AU - Bacon, D H AU - Saripalli, P AU - Shaw, W J AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H13I EP - 07 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - hydrates KW - carbon sequestration KW - pressure KW - laser methods KW - in situ KW - underground storage KW - human activity KW - stability KW - radar methods KW - gas storage KW - high pressure KW - porosity KW - NMR spectra KW - reservoir rocks KW - gases KW - carbon dioxide KW - lidar methods KW - transport KW - saturation KW - spectra KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51083630?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=In+situ+characterization+of+porosity+and+permeability+changes+at+high+pressure%3B+application+to+geological+sequestration&rft.au=McGrail%2C+B+P%3BBacon%2C+D+H%3BSaripalli%2C+P%3BShaw%2C+W+J%3BAnonymous&rft.aulast=McGrail&rft.aufirst=B&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbon sequestration; gas storage; gases; high pressure; human activity; hydrates; in situ; laser methods; lidar methods; NMR spectra; permeability; porosity; pressure; radar methods; reservoir rocks; saturation; spectra; stability; transport; underground storage ER - TY - JOUR T1 - Numerical simulation of field-scale transport and biogeochemical reactions using a particle-based method AN - 51057642; 2008-085112 JF - Eos, Transactions, American Geophysical Union AU - Scheibe, T D AU - Brooks, S C AU - Roden, E E AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H21E EP - 1068 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - pollutants KW - numerical analysis KW - biochemistry KW - injection KW - pollution KW - simulation KW - Oak Ridge Tennessee KW - remediation KW - ground water KW - chemical reactions KW - transport KW - metals KW - Tennessee KW - Anderson County Tennessee KW - uranium KW - water resources KW - water pollution KW - kinetics KW - geochemistry KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51057642?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Numerical+simulation+of+field-scale+transport+and+biogeochemical+reactions+using+a+particle-based+method&rft.au=Scheibe%2C+T+D%3BBrooks%2C+S+C%3BRoden%2C+E+E%3BAnonymous&rft.aulast=Scheibe&rft.aufirst=T&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; Anderson County Tennessee; biochemistry; chemical reactions; geochemistry; ground water; injection; kinetics; metals; numerical analysis; Oak Ridge Tennessee; pollutants; pollution; remediation; simulation; Tennessee; transport; United States; uranium; water pollution; water resources ER - TY - JOUR T1 - Incorporating sub-grid spatial variabilities into subsurface flow parameterizations for land surface modeling in ungauged basins AN - 50651336; 2008-076869 JF - Eos, Transactions, American Geophysical Union AU - Huang, M AU - Liang, X AU - Leung, R L AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H33C EP - 0483 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - Usadievskiy Basin KW - numerical models KW - Australasia KW - TOPMODEL KW - spatial data KW - moisture KW - water management KW - Europe KW - Russian Federation KW - simulation KW - ground water KW - Tarrawara Basin KW - Commonwealth of Independent States KW - drainage basins KW - Australia KW - Valdai KW - discharge KW - water resources KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50651336?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Incorporating+sub-grid+spatial+variabilities+into+subsurface+flow+parameterizations+for+land+surface+modeling+in+ungauged+basins&rft.au=Huang%2C+M%3BLiang%2C+X%3BLeung%2C+R+L%3BAnonymous&rft.aulast=Huang&rft.aufirst=M&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Australasia; Australia; Commonwealth of Independent States; discharge; drainage basins; Europe; ground water; moisture; numerical models; Russian Federation; simulation; spatial data; Tarrawara Basin; TOPMODEL; Usadievskiy Basin; Valdai; water management; water resources ER - TY - JOUR T1 - Stochastic analysis of immiscible displacement of the fluids with arbitrary viscosities and its dependence on support scale of hydrological data AN - 19413795; 6131789 AB - Stochastic analysis is commonly used to address uncertainty in the modeling of flow and transport in porous media. In the stochastic approach, the properties of porous media are treated as random functions with statistics obtained from field measurements. Several studies indicate that hydrological properties depend on the scale of measurements or support scales, but most stochastic analysis does not address the effects of support scale on stochastic predictions of subsurface processes. In this work we propose a new approach to study the scale dependence of stochastic predictions. We present a stochastic analysis of immiscible fluid-fluid displacement in randomly heterogeneous porous media. While existing solutions are applicable only to systems in which the viscosity of one phase is negligible compare with the viscosity of the other (water-air systems for example), our solutions can be applied to the immiscible displacement of fluids having arbitrarily viscosities such as NAPL-water and water-oil. Treating intrinsic permeability as a random field with statistics dependant on the permeability support scale (scale of measurements) we obtained, for one-dimensional systems, analytical solutions for the first moments characterizing unbiased predictions (estimates) of system variables, such as the pressure and fluid-fluid interface position, and we also obtained second moments, which characterize the uncertainties associated with such predictions. Next we obtained empirically scale dependent exponential correlation function of the intrinsic permeability that allowed us to study solutions of stochastic equations as a function of the support scale. We found that the first and second moments converge to asymptotic values as the support scale decreases. In our examples, the statistical moments reached asymptotic values for support scale that were approximately 1/10000 of the flow domain size. We show that analytical moment solutions compare well with the results of Monte Carlo simulations for moderately heterogeneous porous media, and that they can be used to study the effects of heterogeneity on the dynamics and stability of immiscible flow. JF - Advances in Water Resources AU - Tartakovsky, A M AU - Meakin, P AU - Huang, H AD - Pacific Northwest National Laboratory, Computational Sciences & Mathematics, P.O. Box 999/MS K1-85 Richland, WA 99352, USA, alexandre.tartakovsky@pnl.gov Y1 - 2004/12// PY - 2004 DA - December 2004 SP - 1151 EP - 1166 PB - Elsevier Science Ltd., The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:nlinfo-f@elsevier.nl] VL - 27 IS - 12 SN - 0309-1708, 0309-1708 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Aqualine Abstracts KW - Heterogeneity KW - Support scale KW - Stochastic analysis KW - Immiscible displacement KW - Front instability KW - Immiscibility KW - Mathematical models KW - Porous Media KW - Fluid Flow KW - Statistical analysis KW - Water resources KW - Correlation analysis KW - Freshwater KW - Stochastic Process KW - Permeability KW - Viscosity KW - Groundwater Movement KW - Hydrologic Data KW - AQ 00001:Water Resources and Supplies KW - Q2 09127:General papers on resources KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19413795?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Water+Resources&rft.atitle=Stochastic+analysis+of+immiscible+displacement+of+the+fluids+with+arbitrary+viscosities+and+its+dependence+on+support+scale+of+hydrological+data&rft.au=Tartakovsky%2C+A+M%3BMeakin%2C+P%3BHuang%2C+H&rft.aulast=Tartakovsky&rft.aufirst=A&rft.date=2004-12-01&rft.volume=27&rft.issue=12&rft.spage=1151&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/10.1016%2Fj.advwatres.2004.09.003 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-01-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Permeability; Mathematical models; Statistical analysis; Water resources; Correlation analysis; Stochastic Process; Viscosity; Immiscibility; Porous Media; Fluid Flow; Hydrologic Data; Groundwater Movement; Freshwater DO - http://dx.doi.org/10.1016/j.advwatres.2004.09.003 ER - TY - JOUR T1 - Evolution of the PPM-family protein phosphatases in Streptomyces: duplication of catalytic domain and lateral recruitment of additional sensory domains AN - 17812272; 6178541 AB - Originally identified from eukaryotes, the Mg super(2+)- or Mn super(2+)-dependent protein phosphatases (PPMs) are a diverse group of enzymes whose members include eukaryotic PP2C and some prokaryotic serine/threonine phosphatases. In a previous study, unexpectedly large numbers of PPMs were identified in two Streptomyces genomes. In this work, a phylogenetic analysis was performed with all the PPMs available from a wide variety of microbial sources to determine the evolutionary origin of the Streptomyces PPM proteins. Consistent with earlier hypotheses, the results suggested that the microbial PPMs were relatively recent additions from eukaryotic sources. Results also indicated that the Streptomyces PPMs were divided into two major subfamilies at an early stage of their emergence in Streptomyces genomes. The first subfamily, which contains only six Streptomyces PPMs, possesses a catalytic domain whose sequence and architecture are similar to that of eukaryotic PPMs; the second subfamily contains 89 Streptomyces PPMs that lack the 5a and 5b catalytic domain motifs, similar to the PPMs SpoIIE and RsbU of Bacillus subtilis. Significant gene duplication was observed for the PPMs in the second subfamily. In addition, more than half (54%) of the Streptomyces PPMs from the second subfamily were found to have at least one additional sensory domain, most commonly the PAS or the GAF domain. Phylogenetic analysis showed that these domains tended to be clustered according to the putative physiological functions rather than taxonomic relationship, implying that they might have arisen as a result of domain recruitment in a late evolutionary stage. This study provides an insight into how Streptomyces spp. may have expanded their PPM-based signal transduction networks to enable them to respond to a greater range of environmental changes. JF - Microbiology AU - Zhang, W AU - Shi, L AD - Microbiology Department, Pacific Northwest National Laboratory, 902 Battelle Blvd, PO Box 999, Mail Stop: P7-50, Richland, WA 99352, USA, weiwen.zhang@pnl.gov Y1 - 2004/12// PY - 2004 DA - Dec 2004 SP - 4189 EP - 4197 VL - 150 IS - 12 SN - 1350-0872, 1350-0872 KW - Microbiology Abstracts B: Bacteriology KW - Phylogeny KW - Bacillus subtilis KW - Domains KW - gene duplication KW - Eukaryotes KW - protein-serine/threonine phosphatase KW - Environmental changes KW - Streptomyces KW - Magnesium KW - Manganese KW - protein phosphatase KW - Evolution KW - Signal transduction KW - J 02728:Enzymes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17812272?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Microbiology&rft.atitle=Evolution+of+the+PPM-family+protein+phosphatases+in+Streptomyces%3A+duplication+of+catalytic+domain+and+lateral+recruitment+of+additional+sensory+domains&rft.au=Zhang%2C+W%3BShi%2C+L&rft.aulast=Zhang&rft.aufirst=W&rft.date=2004-12-01&rft.volume=150&rft.issue=12&rft.spage=4189&rft.isbn=&rft.btitle=&rft.title=Microbiology&rft.issn=13500872&rft_id=info:doi/10.1099%2Fmic.0.27480-0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Streptomyces; Bacillus subtilis; Evolution; protein phosphatase; Phylogeny; protein-serine/threonine phosphatase; Signal transduction; gene duplication; Environmental changes; Magnesium; Domains; Manganese; Eukaryotes DO - http://dx.doi.org/10.1099/mic.0.27480-0 ER - TY - JOUR T1 - The Failure of Eco-Efficiency to Guarantee Sustainability: Future Challenges for Industrial Ecology AN - 16191060; 6159416 AB - Western industrialized societies are inherently unsustainable in their present form because they depend almost exclusively on a finite supply of nonrenewable minerals and fossil fuels. In addition, the resulting wastes cause various environmental problems ranging from widespread ecosystem disruptions to global warming. The most common response to these problems has been to promote technological improvements in eco-efficiency, which Welford defined as "adding maximum value with minimum resource use and minimum pollution." Although constructive, improvements in eco-efficiency alone will not guarantee sustainability of industrialized societies because the limited supplies of nonrenewable minerals cannot be extended indefinitely by recycling and substitution, and a transition to renewable and nuclear energy sources would result in significant negative environmental impacts, particularly if deployed on a large scale. In addition, according to the second law of thermodynamics, industrial production technologies have inherently unavoidable environmental impacts. Finally, any hardwon improvements in eco-efficiency will soon be negated if growth in population and consumption is allowed to continue. Consequently, long-term industrial sustainability can be achieved only through a transition to a steady-state economy where the total throughput of matter-energy is kept at a constant and sustainable level. This requires not only improvements in eco-efficiency but also a reassessment of fundamental societal values that erroneously equate material consumption and economic growth with well-being and happiness. JF - Environmental Progress AU - Huesemann, M H AD - Pacific Northwest National Laboratory, Marine Science Laboratory, Sequim, WA 98382, USA, michael.huesemann@pnl.gov Y1 - 2004/12// PY - 2004 DA - Dec 2004 SP - 264 EP - 270 VL - 23 IS - 4 SN - 0278-4491, 0278-4491 KW - Pollution Abstracts; Sustainability Science Abstracts KW - Fossil fuels KW - Climatic changes KW - Environmental impact KW - Sustainable development KW - Greenhouse effect KW - Recycling KW - Ecosystem disturbance KW - Waste management KW - Economics KW - Global warming KW - Nuclear energy KW - Minerals KW - P 9000:ENVIRONMENTAL ACTION KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16191060?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Progress&rft.atitle=The+Failure+of+Eco-Efficiency+to+Guarantee+Sustainability%3A+Future+Challenges+for+Industrial+Ecology&rft.au=Huesemann%2C+M+H&rft.aulast=Huesemann&rft.aufirst=M&rft.date=2004-12-01&rft.volume=23&rft.issue=4&rft.spage=264&rft.isbn=&rft.btitle=&rft.title=Environmental+Progress&rft.issn=02784491&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-04-01 N1 - SuppNotes - Special issue: Sustainability in chemical engineering. N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Fossil fuels; Climatic changes; Economics; Environmental impact; Global warming; Sustainable development; Nuclear energy; Greenhouse effect; Recycling; Minerals; Ecosystem disturbance; Waste management ER - TY - JOUR T1 - Solution NMR Structure of the Iron-Sulfur Cluster Assembly Protein U (IscU) with Zinc Bound at the Active Site AN - 17801563; 6158699 AB - IscU is a highly conserved protein that serves as the scaffold for IscS-mediated assembly of iron-sulfur ([Fe-S]) clusters. We report the NMR solution structure of monomeric Haemophilus influenzae IscU with zinc bound at the [Fe-S] cluster assembly site. The compact core of the globular structure has an alpha - beta sandwich architecture with a three-stranded antiparallel beta -sheet and four alpha -helices. A nascent helix is located N-terminal to the core structure. The zinc is ligated by three cysteine residues and one histidine residue that are located in and near conformationally dynamic loops at one end of the IscU structure. Removal of the zinc metal by chelation results in widespread loss of structure in the apo form. The zinc-bound IscU may be a good model for iron-loaded IscU and may demonstrate structural features found in the [Fe-S] cluster bound form. Structural and functional similarities, genomic context in operons containing other homologous genes, and distributions of conserved surface residues support the hypothesis that IscU protein domains are homologous (i.e. derived from a common ancestor) with the SufE/YgdK family of [Fe-S] cluster assembly proteins. JF - Journal of Molecular Biology AU - Ramelot, T A AU - Cort, J R AU - Goldsmith-Fischman, S AU - Kornhaber, G J AU - Xiao, R AU - Shastry, R AU - Acton, T B AU - Honig, B AU - Montelione, G T AU - Kennedy, MA AD - Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352, USA, ma_kennedy@pnl.gov Y1 - 2004/11/19/ PY - 2004 DA - 2004 Nov 19 SP - 567 EP - 583 VL - 344 IS - 2 SN - 0022-2836, 0022-2836 KW - iron-sulfur protein KW - Genetics Abstracts; Microbiology Abstracts B: Bacteriology KW - Sulfur KW - Haemophilus influenzae KW - Zinc KW - iron-sulfur proteins KW - IscU protein KW - Enzymatic activity KW - Iron KW - Conformation KW - G 07320:Bacterial genetics KW - J 02727:Amino acids, peptides and proteins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17801563?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Molecular+Biology&rft.atitle=Solution+NMR+Structure+of+the+Iron-Sulfur+Cluster+Assembly+Protein+U+%28IscU%29+with+Zinc+Bound+at+the+Active+Site&rft.au=Ramelot%2C+T+A%3BCort%2C+J+R%3BGoldsmith-Fischman%2C+S%3BKornhaber%2C+G+J%3BXiao%2C+R%3BShastry%2C+R%3BActon%2C+T+B%3BHonig%2C+B%3BMontelione%2C+G+T%3BKennedy%2C+MA&rft.aulast=Ramelot&rft.aufirst=T&rft.date=2004-11-19&rft.volume=344&rft.issue=2&rft.spage=567&rft.isbn=&rft.btitle=&rft.title=Journal+of+Molecular+Biology&rft.issn=00222836&rft_id=info:doi/10.1016%2Fj.jmb.2004.08.038 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Haemophilus influenzae; iron-sulfur proteins; Zinc; Conformation; Enzymatic activity; Iron; Sulfur; IscU protein DO - http://dx.doi.org/10.1016/j.jmb.2004.08.038 ER - TY - JOUR T1 - Dissolution of uranyl microprecipitates in subsurface sediments at Hanford Site, USA AN - 51737267; 2005-026029 AB - The dissolution of uranium was investigated from contaminated sediments obtained at the US. Department of Energy (U.S. DOE) Hanford site. The uranium existed in the sediments as uranyl silicate microprecipitates in fractures, cleavages, and cavities within sediment grains. Uranium dissolution was studied in Na, Na-Ca, and NH (sub 4) electrolytes with pH ranging from 7.0 to 9.5 under ambient CO (sub 2) pressure. The rate and extent of uranium dissolution was influenced by uranyl mineral solubility, carbonate concentration, and mass transfer rate from intraparticle regions. Dissolved uranium concentration reached constant values within a month in electrolytes below pH 8.2, whereas concentrations continued to rise for over 200 d at pH 9.0 and above. The steady-state concentrations were consistent with the solubility of Na-boltwoodite and/or uranophane, which exhibit similar solubility under the experimental conditions. The uranium dissolution rate increased with increasing carbonate concentration, and was initially fast. It decreased with time as solubility equilibrium was attained, or dissolution kinetics or mass transfer rate from intraparticle regions became rate-limiting. Microscopic observations indicated that uranium precipitates were distributed in intragrain microfractures with variable sizes and connectivity to particle surfaces. Laser-induced fluorescence spectroscopic change of the uranyl microprecipitates was negligible during the long-term equilibration, indicating that uranyl speciation was not changed by dissolution. A kinetic model that incorporated mineral dissolution kinetics and grain-scale, fracture-matrix diffusion was developed to describe uranium release rate from the sediment. Model calculations indicated that 50-95% of the precipitated uranium was associated with fractures that were in close contact with the aqueous phase. The remainder of the uranium was deeply imbedded in particle interiors and exhibited effective diffusivities that were over three orders of magnitude lower than those in the fractures. JF - Geochimica et Cosmochimica Acta AU - Liu, Chongxuan AU - Zachara, John M AU - Qafoku, Odeta AU - McKinley, James P AU - Heald, Steve M AU - Wang, Zheming Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 4519 EP - 4537 PB - Pergamon, Oxford VL - 68 IS - 22 SN - 0016-7037, 0016-7037 KW - United States KW - laser methods KW - isotopes KW - mass spectra KW - solution KW - environmental analysis KW - environmental effects KW - radioactive isotopes KW - fluorescence KW - sediments KW - spectra KW - electrolytic analysis KW - thermodynamic properties KW - mass transfer KW - chemical composition KW - kinetics KW - geochemistry KW - pH KW - soils KW - chemical analysis KW - Washington KW - pollutants KW - uranyl ion KW - pollution KW - Hanford Site KW - migration of elements KW - solubility KW - models KW - precipitation KW - metals KW - mathematical methods KW - uranium KW - mobilization KW - carbonates KW - actinides KW - pore water KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51737267?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Dissolution+of+uranyl+microprecipitates+in+subsurface+sediments+at+Hanford+Site%2C+USA&rft.au=Liu%2C+Chongxuan%3BZachara%2C+John+M%3BQafoku%2C+Odeta%3BMcKinley%2C+James+P%3BHeald%2C+Steve+M%3BWang%2C+Zheming&rft.aulast=Liu&rft.aufirst=Chongxuan&rft.date=2004-11-01&rft.volume=68&rft.issue=22&rft.spage=4519&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2004.04.017 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 53 N1 - Document feature - illus. incl. 6 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; carbonates; chemical analysis; chemical composition; electrolytic analysis; environmental analysis; environmental effects; fluorescence; geochemistry; Hanford Site; isotopes; kinetics; laser methods; mass spectra; mass transfer; mathematical methods; metals; migration of elements; mobilization; models; pH; pollutants; pollution; pore water; precipitation; radioactive isotopes; sediments; soils; solubility; solution; spectra; thermodynamic properties; United States; uranium; uranyl ion; Washington DO - http://dx.doi.org/10.1016/j.gca.2004.04.017 ER - TY - JOUR T1 - Identification and quantification of mineral precipitation in Fe (super 0) filings from a column study AN - 51732397; 2005-026174 JF - Environmental Science & Technology, ES & T AU - Kamolpornwijit, Wiwat AU - Liang, Liyuan AU - Moline, Gerilynn R AU - Hart, Todd AU - West, Olivia R Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 5757 EP - 5766 PB - American Chemical Society, Washington, DC VL - 38 IS - 21 SN - 0013-936X, 0013-936X KW - goethite KW - X-ray diffraction data KW - thermogravimetric analysis KW - mass spectra KW - aqueous solutions KW - simulation KW - iron KW - environmental effects KW - ground water KW - mineral composition KW - chemical reactions KW - mass balance KW - oxides KW - spectra KW - disposal barriers KW - corrosion KW - aragonite KW - pollutants KW - pollution KW - porosity KW - calcite KW - thermal analysis KW - physical properties KW - precipitation KW - metals KW - waste disposal KW - carbonates KW - SEM data KW - permeability KW - magnetite KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51732397?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Identification+and+quantification+of+mineral+precipitation+in+Fe+%28super+0%29+filings+from+a+column+study&rft.au=Kamolpornwijit%2C+Wiwat%3BLiang%2C+Liyuan%3BMoline%2C+Gerilynn+R%3BHart%2C+Todd%3BWest%2C+Olivia+R&rft.aulast=Kamolpornwijit&rft.aufirst=Wiwat&rft.date=2004-11-01&rft.volume=38&rft.issue=21&rft.spage=5757&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 34 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - aqueous solutions; aragonite; calcite; carbonates; chemical reactions; corrosion; disposal barriers; environmental effects; goethite; ground water; iron; magnetite; mass balance; mass spectra; metals; mineral composition; oxides; permeability; physical properties; pollutants; pollution; porosity; precipitation; SEM data; simulation; spectra; thermal analysis; thermogravimetric analysis; waste disposal; X-ray diffraction data ER - TY - JOUR T1 - Colloid formation in Hanford sediments reacted with simulated tank waste AN - 51730588; 2005-026173 JF - Environmental Science & Technology, ES & T AU - Mashal, Kholoud AU - Harsh, James B AU - Flury, Markus AU - Felmy, Andrew R AU - Zhao, Hongting Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 5750 EP - 5756 PB - American Chemical Society, Washington, DC VL - 38 IS - 21 SN - 0013-936X, 0013-936X KW - United States KW - Sr-90 KW - geologic hazards KW - solutions KW - isotopes KW - underground storage tanks KW - mass spectra KW - simulation KW - environmental analysis KW - environmental effects KW - ground water KW - radioactive isotopes KW - mineral composition KW - chemical reactions KW - cesium KW - phase equilibria KW - sediments KW - spectra KW - chemical composition KW - geochemistry KW - pH KW - leaking underground storage tanks KW - alkaline earth metals KW - colloidal materials KW - Washington KW - pollutants KW - alkali metals KW - pollution KW - Hanford Site KW - atomic absorption spectra KW - models KW - ICP mass spectra KW - Cs-137 KW - microscope methods KW - metals KW - petrography KW - mobilization KW - strontium KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51730588?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Colloid+formation+in+Hanford+sediments+reacted+with+simulated+tank+waste&rft.au=Mashal%2C+Kholoud%3BHarsh%2C+James+B%3BFlury%2C+Markus%3BFelmy%2C+Andrew+R%3BZhao%2C+Hongting&rft.aulast=Mashal&rft.aufirst=Kholoud&rft.date=2004-11-01&rft.volume=38&rft.issue=21&rft.spage=5750&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 33 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - alkali metals; alkaline earth metals; atomic absorption spectra; cesium; chemical composition; chemical reactions; colloidal materials; Cs-137; environmental analysis; environmental effects; geochemistry; geologic hazards; ground water; Hanford Site; ICP mass spectra; isotopes; leaking underground storage tanks; mass spectra; metals; microscope methods; mineral composition; mobilization; models; petrography; pH; phase equilibria; pollutants; pollution; radioactive isotopes; sediments; simulation; solutions; spectra; Sr-90; strontium; underground storage tanks; United States; Washington ER - TY - JOUR T1 - Assessing conceptual models for subsurface reactive transport of inorganic contaminants AN - 51725273; 2005-033809 JF - Eos, Transactions, American Geophysical Union AU - Davis, James A AU - Yabusaki, Steven B AU - Steefel, Carl I AU - Zachara, John M AU - Curtis, Gary P AU - Redden, George D AU - Criscenti, Louise J AU - Honeyman, Bruce D Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 449 EP - 449, 455 PB - American Geophysical Union, Washington, DC VL - 85 IS - 44 SN - 0096-3941, 0096-3941 KW - contaminant plumes KW - pollutants KW - public policy KW - pollution KW - porosity KW - inorganic materials KW - ground water KW - spatial distribution KW - chemical reactions KW - transport KW - planning KW - bacteria KW - hydraulic conductivity KW - heterogeneity KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51725273?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Assessing+conceptual+models+for+subsurface+reactive+transport+of+inorganic+contaminants&rft.au=Davis%2C+James+A%3BYabusaki%2C+Steven+B%3BSteefel%2C+Carl+I%3BZachara%2C+John+M%3BCurtis%2C+Gary+P%3BRedden%2C+George+D%3BCriscenti%2C+Louise+J%3BHoneyman%2C+Bruce+D&rft.aulast=Davis&rft.aufirst=James&rft.date=2004-11-01&rft.volume=85&rft.issue=44&rft.spage=449&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - bacteria; chemical reactions; contaminant plumes; ground water; heterogeneity; hydraulic conductivity; inorganic materials; permeability; planning; pollutants; pollution; porosity; public policy; spatial distribution; transport ER - TY - JOUR T1 - Connecting vadose zone nitrate to groundwater contamination at the Hanford Site with stable isotopes AN - 51663452; 2005-073423 AB - The delta (super 15) N and delta (super 18) O of nitrate in de-ionized water leaches of vadose zone core samples are used to identify likely sources of groundwater contamination at the USDOE Hanford Site in south-central Washington. The isotopic compositions of nitrate from undisturbed vadose zone sediments (delta (super 15) N of 4 to 8%, delta (super 18) O of -9 to4%) are consistent with natural soil nitrate from microbialnitrification. The semi-arid climate of Hanford leads to seasonal shifts of 3 to 10 % in the delta (super 18) O values of near surface pore waters, which may have caused the observed range in nitrate delta (super 18) O. Buried caliche layers in the vadose zone have significantly elevated nitrate concentrations (>10x background) with similar delta (super 15) N (0 to 8%) and high delta (super 18) O (18 to 42%) relative to the background soil nitrate. Vadose zone sediments from chemical processing areas at the site also have elevated nitrate levels where concentrated chemical and radioactive wastes leaked from buried tanks or were allowed to infiltrate into the vadose zone through disposal trenches. The isotopic composition of the contaminant nitrate (delta (super 15) N of 10 to 35%, delta (super 18) O of -5 to 5%) was likely imparted by the chemistry used during plutonium recovery processing and is distinct from the background sources. Significant amounts of dilute wastewater were also discharged to the vadose zone in these areas through infiltration ponds. The isotopic compositions of nitrate from 77 groundwater wells have been analyzed. Groundwater samples from undisturbed areas of the site have nitrate isotope compositions similar to background vadose zone nitrate. Samples from groundwater nitrate plumes in the vicinity of the chemical processing areas (concentrations up to 763 mg/L as NO (sub 3) -) have isotopic compositions consistent with a mixture of background soil nitrate and nitrate that has high delta (super 18) O values, such as the nitrate associated with the caliche layers. These data indicate that most of the elevated nitrate concentrations in Hanford groundwater resulted from flushing nitrate out of the vadose zone during low-level wastewater disposal, rather than migration of the high delta (super 15) N vadose zone contamination. JF - Abstracts with Programs - Geological Society of America AU - Singeton, Michael J AU - Conrad, Mark AU - Woods, Katharine AU - DePaolo, Donald AU - Dresel, P Evan AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 329 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - caliche KW - oxygen KW - isotopes KW - waste water KW - plutonium KW - unsaturated zone KW - stable isotopes KW - cores KW - nitrogen KW - ground water KW - nitrate ion KW - water pollution KW - soils KW - Washington KW - N-15/N-14 KW - isotope ratios KW - background level KW - pollution KW - Hanford Site KW - O-18/O-16 KW - south-central Washington KW - metals KW - infiltration KW - seasonal variations KW - waste disposal KW - leaching KW - low-level waste KW - actinides KW - pore water KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51663452?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Connecting+vadose+zone+nitrate+to+groundwater+contamination+at+the+Hanford+Site+with+stable+isotopes&rft.au=Singeton%2C+Michael+J%3BConrad%2C+Mark%3BWoods%2C+Katharine%3BDePaolo%2C+Donald%3BDresel%2C+P+Evan%3BAnonymous&rft.aulast=Singeton&rft.aufirst=Michael&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=329&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2004 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; background level; caliche; cores; ground water; Hanford Site; infiltration; isotope ratios; isotopes; leaching; low-level waste; metals; N-15/N-14; nitrate ion; nitrogen; O-18/O-16; oxygen; plutonium; pollution; pore water; seasonal variations; soils; south-central Washington; stable isotopes; United States; unsaturated zone; Washington; waste disposal; waste water; water pollution ER - TY - JOUR T1 - Unsaturated flow and multicomponent reactive transport in physically and chemically heterogeneous sediments AN - 51663235; 2005-073398 AB - Coupled processes of unsaturated flow and multicomponent strontium ion exchange are investigated in a subsurface system with multiscale heterogeneities in sediment properties. High-resolution geophysical techniques and image analysis are used to generate sub-millimeter resolution maps of physical and chemical heterogeneities in an exposed 4 meter by 1 meter cut face of subsurface sediments. Permeability distribution parallel and perpendicular to laminae is measured by mini-permeameter. Water content, particle size distribution, particle density, bulk density, and cation exchange capacity measured on selected samples are used to develop pedotransfer functions for chemical and unsaturated hydraulic properties. Spatial distributions of temperature from high-resolution infrared images correlated to particle size statistics are used to interpolate hydraulic and chemical properties across the entire cut face. A geochemical model of multicomponent strontium ion exchange developed in a previous laboratory study and tested under unsaturated conditions with sediments from the field study, is the basis for simulating the aqueous, mineral, and sorption reactions in this system. The migration of a conservative tracer and a strontium solution is simulated under a range of recharge rates to explore the impact of the negative correlation between permeability and reactive surfaces. Results show the development of saturation-dependent flow paths that can limit exposure to zones of highest cation exchange capacity. JF - Abstracts with Programs - Geological Society of America AU - Yabusaki, Steven B AU - Ward, Andy L AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 325 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - sorption KW - unsaturated zone KW - ions KW - ground water KW - spatial distribution KW - chemical reactions KW - transport KW - sediments KW - chemical properties KW - ion exchange KW - heterogeneity KW - sedimentary structures KW - processes KW - alkaline earth metals KW - cation exchange capacity KW - laminations KW - grain size KW - statistical analysis KW - properties KW - planar bedding structures KW - physical properties KW - heterogeneous materials KW - metals KW - strontium KW - permeability KW - image analysis KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51663235?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Unsaturated+flow+and+multicomponent+reactive+transport+in+physically+and+chemically+heterogeneous+sediments&rft.au=Yabusaki%2C+Steven+B%3BWard%2C+Andy+L%3BAnonymous&rft.aulast=Yabusaki&rft.aufirst=Steven&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=325&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2004 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkaline earth metals; cation exchange capacity; chemical properties; chemical reactions; grain size; ground water; heterogeneity; heterogeneous materials; image analysis; ion exchange; ions; laminations; metals; permeability; physical properties; planar bedding structures; processes; properties; sedimentary structures; sediments; sorption; spatial distribution; statistical analysis; strontium; transport; unsaturated zone ER - TY - JOUR T1 - Transport and biogeochemical reaction of metals in a physically and chemically heterogeneous aquifer AN - 51660821; 2005-073399 AB - Biologically-mediated reductive dissolution and precipitation of metals and radionuclides play a key role in their subsurface transport. Physical and chemical properties of natural aquifer systems, such as reactive iron oxide surface area and hydraulic conductivity, are often highly heterogeneous in complex ways that can exert significant control on transport, natural attenuation, and active remediation processes. Typically, however, few data on the detailed distribution of these properties are available for incorporation into predictive models. In this study, we integrate field-scale geophysical, hydrologic, and geochemical data from a well-characterized site with the results of laboratory batch reaction studies to formulate numerical models of reactive transport in a heterogeneous granular aquifer. The models incorporate several levels of coupling, including effects of ferrous iron sorption onto (and associated reduction of reactive surface area of) ferric iron surfaces, microbial growth and transport dynamics, and cross-correlation between hydraulic conductivity and initial ferric iron surface area. These models are then used to evaluate the impacts of physical and chemical heterogeneity on transport of trace levels of uranium under natural conditions, as well as the effectiveness of uranium reduction and immobilization upon introduction of a soluble electron donor (a potential biostimulation remedial strategy). JF - Abstracts with Programs - Geological Society of America AU - Scheibe, Timothy D AU - Fang, Yilin AU - Roden, Eric E AU - Brooks, Scott C AU - Hubbard, Susan S AU - Chen, Jinsong AU - Chien, Yi-Ju AU - Murray, Christopher J AU - Xie, Yulong AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 325 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - iron oxides KW - isotopes KW - solution KW - iron KW - remediation KW - ground water KW - spatial distribution KW - ferric iron KW - radioactive isotopes KW - granular materials KW - chemical reactions KW - transport KW - chemical properties KW - oxides KW - reduction KW - water pollution KW - processes KW - pollutants KW - biochemistry KW - pollution KW - ferrous iron KW - aquifers KW - physical properties KW - precipitation KW - metals KW - uranium KW - hydraulic conductivity KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51660821?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Transport+and+biogeochemical+reaction+of+metals+in+a+physically+and+chemically+heterogeneous+aquifer&rft.au=Scheibe%2C+Timothy+D%3BFang%2C+Yilin%3BRoden%2C+Eric+E%3BBrooks%2C+Scott+C%3BHubbard%2C+Susan+S%3BChen%2C+Jinsong%3BChien%2C+Yi-Ju%3BMurray%2C+Christopher+J%3BXie%2C+Yulong%3BAnonymous&rft.aulast=Scheibe&rft.aufirst=Timothy&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=325&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2004 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; aquifers; biochemistry; chemical properties; chemical reactions; ferric iron; ferrous iron; granular materials; ground water; hydraulic conductivity; iron; iron oxides; isotopes; metals; oxides; physical properties; pollutants; pollution; precipitation; processes; radioactive isotopes; reduction; remediation; solution; spatial distribution; transport; uranium; water pollution ER - TY - JOUR T1 - Estimating field-scale soil hydraulic properties through joint inversion of cross-borehole GPR travel times and hydrological measurements AN - 51658786; 2005-073305 AB - Ground-penetrating radar (GPR) measurements are highly sensitive to transient and non-uniform water distributions. Although GPR travel times are ideal for inclusion in inverse methods that allow for estimation of soil hydraulic parameters, this field of research is at an early stage of development. In the present work, multiple-offset cross-borehole GPR travel times and additional hydrological measurements are used jointly to estimate field-scale soil hydraulic parameters through inversion. The current implementation of our approach allows not only for estimation of the soil hydraulic parameters, but also for estimation of the petrophysical model (in this case, the constitutive model relating the dielectric constant to the porosity and water saturation) and the spatial correlation model of permeability. The usefulness of the approach must be examined for any particular application of interest, because many factors, including flow conditions and measurement configurations, affect parameter sensitivity. We choose to examine the scenario of a point injection of water and the simultaneous collection of nearby borehole measurements. In a 2-D synthetic example, we see that small errors in the petrophysical model result in substantial errors in estimates of the uniform soil hydraulic parameters. This finding is of particular relevance, since in many GPR applications a universal petrophysical model (i.e., non-site-specific) is assumed, or a field-scale model is implemented despite its having been derived at laboratory scale. However, adverse effects from incorrect or unknown petrophysical models are shown to be alleviated by jointly estimating the petrophysical model with the soil hydraulic parameters. Additionally, we consider an example with a heterogeneous permeability distribution, and explore the possibility of estimating its spatial correlation model. Finally, the approach is applied in a 3-D setting to real field data collected at the Hanford DOE site in Washington. JF - Abstracts with Programs - Geological Society of America AU - Kowalsky, Michael B AU - Finsterle, Stefan A AU - Peterson, John E AU - Hubbard, Susan S AU - Rubin, Yoram AU - Majer, Ernest L AU - Ward, Anderson L AU - Gee, Glendon W AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 310 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - soils KW - experimental studies KW - Washington KW - ground-penetrating radar KW - crosshole methods KW - radar methods KW - Hanford Site KW - inverse problem KW - elastic waves KW - properties KW - physical models KW - two-dimensional models KW - measurement KW - ground water KW - laboratory studies KW - errors KW - traveltime KW - applications KW - permeability KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51658786?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Estimating+field-scale+soil+hydraulic+properties+through+joint+inversion+of+cross-borehole+GPR+travel+times+and+hydrological+measurements&rft.au=Kowalsky%2C+Michael+B%3BFinsterle%2C+Stefan+A%3BPeterson%2C+John+E%3BHubbard%2C+Susan+S%3BRubin%2C+Yoram%3BMajer%2C+Ernest+L%3BWard%2C+Anderson+L%3BGee%2C+Glendon+W%3BAnonymous&rft.aulast=Kowalsky&rft.aufirst=Michael&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=310&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2004 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - applications; crosshole methods; elastic waves; errors; experimental studies; ground water; ground-penetrating radar; Hanford Site; inverse problem; laboratory studies; measurement; permeability; physical models; properties; radar methods; soils; traveltime; two-dimensional models; United States; Washington ER - TY - JOUR T1 - A film depositional model of permeability for mineral reactions in unsaturated media AN - 51133739; 2005-062202 AB - A film depositional modeling approach is developed for modeling changes in permeability due to mineral precipitation and dissolution reactions in unsaturated porous media. Such a model is needed for describing glass dissolution and secondary mineral precipitation in a low-level waste facility. The model is based on the assumption that the mineral precipitate is deposited on the pore walls as a continuous film, which may cause a reduction in permeability. Previous work in saturated media has used continuous pore-size distributions to represent the pore space. In this study, the film depositional model is developed for a discrete pore-size distribution, which is determined using the unsaturated hydraulic properties of the porous medium. This facilitates the process of dynamically updating the unsaturated hydraulic parameters used to describe fluid flow through the media. Single mineral test simulations have been conducted to test both the Mualem and Childs and Collis-George permeability models. Results from simulation of the simultaneous dissolution of low-level glassified waste and secondary mineral precipitation show that the film depositional models yield physically reasonable predictions of permeability changes due to solid-aqueous phase reactions. JF - Vadose Zone Journal AU - Freedman, Vicky L AU - Bacon, Diana H AU - Prasad Saripalli, K AU - Meyer, Philip D Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 1414 EP - 1424 PB - Soil Science Society of America, Madison, WI VL - 3 IS - 4 KW - silicates KW - silica minerals KW - Childs and Collis model KW - data processing KW - unsaturated zone KW - aqueous solutions KW - solution KW - radioactive waste KW - size distribution KW - chemical reactions KW - Mualem model KW - digital simulation KW - framework silicates KW - glass materials KW - geochemistry KW - porous materials KW - porosity KW - boundary conditions KW - calcite KW - STORM simulation KW - liquid waste KW - precipitation KW - biofilms KW - quartz KW - hydraulic conductivity KW - waste disposal KW - low-level waste KW - carbonates KW - permeability KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51133739?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=A+film+depositional+model+of+permeability+for+mineral+reactions+in+unsaturated+media&rft.au=Freedman%2C+Vicky+L%3BBacon%2C+Diana+H%3BPrasad+Saripalli%2C+K%3BMeyer%2C+Philip+D&rft.aulast=Freedman&rft.aufirst=Vicky&rft.date=2004-11-01&rft.volume=3&rft.issue=4&rft.spage=1414&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 36 N1 - PubXState - WI N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Accessed on January 24, 2005 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aqueous solutions; biofilms; boundary conditions; calcite; carbonates; chemical reactions; Childs and Collis model; data processing; digital simulation; framework silicates; geochemistry; glass materials; hydraulic conductivity; liquid waste; low-level waste; Mualem model; permeability; porosity; porous materials; precipitation; quartz; radioactive waste; silica minerals; silicates; size distribution; solution; STORM simulation; unsaturated zone; waste disposal ER - TY - JOUR T1 - The relative connectivity-tortuosity tensor for conduction of water in anisotropic unsaturated soils AN - 51133281; 2005-062208 AB - The hydraulic conductivity of unsaturated anisotropic soils has recently been described with a tensorial connectivity-tortuosity (TCT) concept. We present a mathematical formalization of the connectivity-tortuosity tensor, assuming that its principal axes coincide with those of the hydraulic conductivity tensor at saturation. The hydraulic conductivity tensor of such unsaturated anisotropic soils is given as the product of a scalar variable, the symmetric connectivity-tortuosity tensor, and the hydraulic conductivity tensor at saturation. The influence of the degree of saturation on hydraulic conductivity is illustrated for four well-defined synthetic soils through radial plots of the hydraulic conductivity scalar and of the reciprocal hydraulic resistivity scalar, both as a function of saturation. The resulting curves are ellipses. The eccentricity of these ellipses is a measure of the degree of anisotropy of the soil at a given saturation. JF - Vadose Zone Journal AU - Raats, Peter A C AU - Raats, Z AU - Zhang, Fred AU - Ward, Andy L AU - Gee, Glendon W Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 1471 EP - 1478 PB - Soil Science Society of America, Madison, WI VL - 3 IS - 4 KW - water KW - soils KW - hydrology KW - anisotropic materials KW - connectivity KW - unsaturated zone KW - tortuosity KW - mathematical models KW - heterogeneous materials KW - stochastic processes KW - movement KW - hydraulic conductivity KW - 21:Hydrogeology KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51133281?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=The+relative+connectivity-tortuosity+tensor+for+conduction+of+water+in+anisotropic+unsaturated+soils&rft.au=Raats%2C+Peter+A+C%3BRaats%2C+Z%3BZhang%2C+Fred%3BWard%2C+Andy+L%3BGee%2C+Glendon+W&rft.aulast=Raats&rft.aufirst=Peter+A&rft.date=2004-11-01&rft.volume=3&rft.issue=4&rft.spage=1471&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 50 N1 - PubXState - WI N1 - Document feature - illus. N1 - SuppNotes - Accessed on January 25, 2005 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - anisotropic materials; connectivity; heterogeneous materials; hydraulic conductivity; hydrology; mathematical models; movement; soils; stochastic processes; tortuosity; unsaturated zone; water ER - TY - JOUR T1 - Interactive toxicity of simple chemical mixtures of cadmium, mercury, methylmercury and trimethyltin: model-dependent responses AN - 17787675; 6095005 AB - Scientific and societal interest in the analysis of aggregate toxicity derives from the fact that people are seldom exposed to single chemicals, but rather to multiple agents from different sources and even to mixtures of agents from a single source. Many descriptive terms and mathematical, graphical, and statistical models have been used to evaluate the toxicity of simple mixtures. It is not very easy to distinguish clearly the intrinsic differences, distinctions and limitations of these models when applied to characterizing interactive toxicity. A series of experiments were performed to illustrate model-dependent consistencies and differences in interactive toxicity. Cultured murine renal cortical cells, target cells for metal toxicity, were treated with selected concentrations of one metal or binary mixtures of metals to give conditions of dose-additivity, response additivity, or with only one toxic member of the binary mixture. The cytotoxicity was determined at 24 h by lactate dehydrogenase release. The data were analyzed graphically and mathematically by (a) Carter's statistical isobologram, (b) Barton's non-linear, and (c) Kodell and Pounds' linear models to characterize the interaction. These models were compared and contrasted for robustness, and consistency using these common data sets. The models gave generally consistent conclusions, but each model has limitations and strengths for assessing particular mixtures scenarios. This comparison illustrates the complexity of extrapolating conclusions between models, and difficulty of public health assessment from exposures to multiple chemicals in the environment. JF - Environmental Toxicology and Pharmacology AU - Pounds, J G AU - Haider, J AU - Chen, D G AU - Mumtaz, M AD - Pacific Northwest National Laboratory, Biological Sciences Division, 902 Battelle Blvd, MS P7-58, Richland, WA 99352, USA, joel.pounds@pnl.gov Y1 - 2004/11// PY - 2004 DA - Nov 2004 SP - 101 EP - 113 PB - Elsevier Science Ltd., The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl] VL - 18 IS - 2 SN - 1382-6689, 1382-6689 KW - Toxicology Abstracts KW - Cytotoxicity KW - In vitro KW - Mixtures KW - Cadmium KW - Mercury KW - Methylmercury KW - Trimethyltin KW - Dose-response KW - Nonlinear models KW - Isobologram KW - Risk assessment KW - Metals KW - Mathematical models KW - Statistics KW - Data processing KW - Toxicity KW - Public health KW - L-Lactate dehydrogenase KW - Kidney KW - X 24222:Analytical procedures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17787675?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Pharmacology&rft.atitle=Interactive+toxicity+of+simple+chemical+mixtures+of+cadmium%2C+mercury%2C+methylmercury+and+trimethyltin%3A+model-dependent+responses&rft.au=Pounds%2C+J+G%3BHaider%2C+J%3BChen%2C+D+G%3BMumtaz%2C+M&rft.aulast=Pounds&rft.aufirst=J&rft.date=2004-11-01&rft.volume=18&rft.issue=2&rft.spage=101&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Pharmacology&rft.issn=13826689&rft_id=info:doi/10.1016%2Fj.etap.2004.05.012 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Metals; Cytotoxicity; Data processing; Statistics; Mathematical models; Kidney; Trimethyltin; Mercury; Cadmium; Toxicity; L-Lactate dehydrogenase; Public health DO - http://dx.doi.org/10.1016/j.etap.2004.05.012 ER - TY - JOUR T1 - Cryogenic Laser Induced Fluorescence Characterization of U(VI) in Hanford Vadose Zone Pore Waters AN - 16184863; 6112679 AB - Ambient and liquid helium temperature laser-induced time-resolved uranyl fluorescence spectroscopy was applied to study the speciation of aqueous uranyl solutions containing carbonate and phosphate and two porewater samples obtained by ultracentrifugation of U(VI)-contaminated sediments. The significantly enhanced fluorescence signal intensity and spectral resolution found at liquid helium temperature allowed, for the first time, direct fluorescence spectroscopic observation of the higher aqueous uranyl complexes with carbonate: UO sub(2)(CO sub(3)) sub(2) super(2-), UO sub(2)(CO sub(3)) sub(3) super(4-), and (UO sub(2)) sub(2)(OH) sub(3)CO sub(3) super(-). The porewater samples were nonfluorescent at room temperature. However, at liquid helium temperature, both porewater samples displayed strong, well-resolved fluorescence spectra. Comparisons of the spectroscopic characteristics of the porewaters with those of the standard uranyl-carbonate complexes confirmed that U(VI) in the porewaters existed primarily as UO sub(2)(CO sub(3)) sub(3) super(4-) along with a small amount of other minor components, such as dicalcium-urano-tricarbonate complex, Ca sub(2)UO sub(2)(CO sub(3)) sub(3), consistent with thermodynamic calculation. The U(VI)-carbonate complex is apparently the mobile species responsible for the subsurface migration of U(VI), even though the majority of the in-ground U(VI) inventory at the site from which the samples were obtained exists as intragrain U(VI)-silicate precipitates. JF - Environmental Science & Technology AU - Wang, Zheming AU - Zachara, J M AU - Yantasee, W AU - Gassman, P L AU - Liu, Chongxuan AU - Joly, A G AD - Pacific Northwest National Laboratory, MSIN K8-96, P.O. Box 999, Richland, WA 99352, USA, Zheming.Wang@pnl.gov Y1 - 2004/11/01/ PY - 2004 DA - 2004 Nov 01 SP - 5591 EP - 5597 VL - 38 IS - 21 SN - 0013-936X, 0013-936X KW - Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Speciation KW - Pore water KW - Spectroscopy KW - Migration KW - Vadose zone KW - Uranium KW - Zones KW - Cryogenics KW - Sediment pollution KW - Fluorescence KW - Thermodynamics KW - Carbonates KW - Temperature KW - Surveys KW - Interstitial Water KW - Phosphates KW - USA, Washington, Hanford KW - Radioisotopes KW - Helium KW - Standards KW - Lasers KW - Technology KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16184863?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Cryogenic+Laser+Induced+Fluorescence+Characterization+of+U%28VI%29+in+Hanford+Vadose+Zone+Pore+Waters&rft.au=Wang%2C+Zheming%3BZachara%2C+J+M%3BYantasee%2C+W%3BGassman%2C+P+L%3BLiu%2C+Chongxuan%3BJoly%2C+A+G&rft.aulast=Wang&rft.aufirst=Zheming&rft.date=2004-11-01&rft.volume=38&rft.issue=21&rft.spage=5591&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes049512u LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-08-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Pore water; Sediment pollution; Fluorescence; Thermodynamics; Uranium; Temperature; Radioisotopes; Lasers; Spectroscopy; Vadose zone; Speciation; Carbonates; Surveys; Interstitial Water; Migration; Phosphates; Helium; Standards; Zones; Cryogenics; Technology; USA, Washington, Hanford DO - http://dx.doi.org/10.1021/es049512u ER - TY - JOUR T1 - Application of hydrograph shape and channel infiltration models to an arid watershed AN - 51763101; 2005-006806 AB - Ephemeral streamflows measured during January 1995 at upstream and downstream locations in Cold Creek, near the arid Hanford Site, in the state of Washington, were analyzed. Double triangle and composite hydrograph models fit these flow events relatively well, with mean efficiency nearly equal 0.7. The composite hydrograph model is slightly preferable to the double triangle model for having one less parameter and a built-in method for quantifying base flow. A strong linear relationship was found between upstream and downstream flow volumes (R (super 2) = 0.99, p<0.001), and a linearized exponential decay model for channel infiltration was used to estimate flow loss to infiltration as 19% of volume per km. As compared to the humid and semiarid environments where most of these techniques have been previously applied, the colder and more arid setting of Hanford produces runoff much less frequently and has greater channel infiltration capacity. JF - Journal of Hydrologic Engineering AU - Waichler, Scott R AU - Wigmosta, Mark S Y1 - 2004/10// PY - 2004 DA - October 2004 SP - 433 EP - 439 PB - American Society of Civil Engineers, New York, NY VL - 9 IS - 5 SN - 1084-0699, 1084-0699 KW - United States KW - soils KW - hydrology KW - Washington KW - terrestrial environment KW - arid environment KW - rivers and streams KW - watersheds KW - Hanford Site KW - channels KW - water balance KW - models KW - streamflow KW - hydrographs KW - infiltration KW - Cold Creek basin KW - runoff KW - storms KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51763101?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrologic+Engineering&rft.atitle=Application+of+hydrograph+shape+and+channel+infiltration+models+to+an+arid+watershed&rft.au=Waichler%2C+Scott+R%3BWigmosta%2C+Mark+S&rft.aulast=Waichler&rft.aufirst=Scott&rft.date=2004-10-01&rft.volume=9&rft.issue=5&rft.spage=433&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrologic+Engineering&rft.issn=10840699&rft_id=info:doi/10.1061%2F%28ASCE%291084-0699%282004%299%3A5%28433%29 L2 - http://scitation.aip.org/heo/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 15 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - arid environment; channels; Cold Creek basin; Hanford Site; hydrographs; hydrology; infiltration; models; rivers and streams; runoff; soils; storms; streamflow; terrestrial environment; United States; Washington; water balance; watersheds DO - http://dx.doi.org/10.1061/(ASCE)1084-0699(2004)9:5(433) ER - TY - JOUR T1 - Impacts of different precipitation data sources on water budgets AN - 51661825; 2005-075938 AB - Radar and rain-gauge precipitation datasets are used to explore the impacts of different precipitation data sources on water budgets simulated by the Three-Layer Variable Infiltration Capacity (VIC-3L) land surface model over the watershed of the Illinois River at Watts, Oklahoma. Hourly grid-based NEXRAD (Next Generation Radar) Stage III precipitation data (approximately 4X4 km (super 2) ) were aggregated in time and space to daily precipitation at 1/8 degree and compared to the University of Washington (UW) daily precipitation data, which were gridded at 1/8 degree based on rain-gauge precipitation data. Comparisons of the temporal cumulative precipitation magnitudes indicate that the NEXRAD precipitation is smaller than the UW data and the rain gauge measurements. Hyetographs obtained from the NEXRAD data in general appear to be narrower with higher peaks. In addition, the NEXRAD data are better in capturing the precipitation spatial distributions than the UW data. Investigations of water fluxes based on simulations forced by the two types of precipitation datasets suggest that realistic streamflow simulations, compared to the observed daily streamflow at the outlet of the Illinois River at Watts, can be obtained if model parameters are calibrated. Compared to soil moisture of the total zone, runoff and evapotranspiration are more sensitive to the temporal and spatial distributions of precipitation, with runoff being most sensitive. Also, runoff and evapotranspiration obtained based on the NEXRAD precipitation data show more spatial heterogeneities than those obtained by using the UW precipitation data. Moreover, the magnitudes of the components of the water budget can be strongly impacted by the VIC-3L calibrated parameters, but their spatial distribution patterns may not be significantly affected. JF - Journal of Hydrology AU - Guo, Jianzhong AU - Liang, Xu AU - Ruby Leung, L A2 - Smith, Michael B. A2 - Georgakakos, Konstantine P. A2 - Liang, Xu Y1 - 2004/10// PY - 2004 DA - October 2004 SP - 311 EP - 334 PB - Elsevier, Amsterdam VL - 298 IS - 1-4 SN - 0022-1694, 0022-1694 KW - United States KW - soils KW - hydrology KW - gauging KW - NEXRAD KW - numerical models KW - moisture KW - rivers and streams KW - data processing KW - radar methods KW - Illinois River KW - atmospheric precipitation KW - water balance KW - evapotranspiration KW - Oklahoma KW - Watts Oklahoma KW - hydrographs KW - runoff KW - digital simulation KW - Adair County Oklahoma KW - DMIP Program KW - distributed models KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51661825?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology&rft.atitle=Impacts+of+different+precipitation+data+sources+on+water+budgets&rft.au=Guo%2C+Jianzhong%3BLiang%2C+Xu%3BRuby+Leung%2C+L&rft.aulast=Guo&rft.aufirst=Jianzhong&rft.date=2004-10-01&rft.volume=298&rft.issue=1-4&rft.spage=311&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology&rft.issn=00221694&rft_id=info:doi/10.1016%2Fj.jhydrol.2003.08.020 L2 - http://www.sciencedirect.com/science/journal/00221694 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 50 N1 - Document feature - illus. incl. 4 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - JHYDA7 N1 - SubjectsTermNotLitGenreText - Adair County Oklahoma; atmospheric precipitation; data processing; digital simulation; distributed models; DMIP Program; evapotranspiration; gauging; hydrographs; hydrology; Illinois River; moisture; NEXRAD; numerical models; Oklahoma; radar methods; rivers and streams; runoff; soils; United States; water balance; Watts Oklahoma DO - http://dx.doi.org/10.1016/j.jhydrol.2003.08.020 ER - TY - JOUR T1 - Assessment of the effects of spatial resolutions on daily water flux simulations AN - 51660694; 2005-075937 AB - Impacts of spatially distributed precipitation and soil heterogeneity on modeling water fluxes at different spatial resolutions are investigated using the Three-layer Variable Infiltration Capacity (VIC-3L) land surface model at the Blue River watershed in Oklahoma. In this study, hourly grid-based NEXRAD (Next Generation Radar) Stage III radar precipitation data approximately at 4X4 km (super 2) resolution are used to compute daily precipitation at spatial resolutions of 1/32, 1/16, 1/8, 1/4, 1/2 and 1 degree based on an area weighted average method. Soil parameters at the corresponding six spatial resolutions are derived from the State Soil Geographic (STATSGO) soil data. The forcing data of daily maximum and minimum temperature, wind speed, and vegetation parameters are disaggregated/aggregated directly to finer/coarser spatial resolutions based on the University of Washington (UW) data, which are gridded at 1/8 degree spatial resolution. Our study suggests that a critical spatial resolution for the VIC-3L model may exist for the study watershed. For spatial resolutions finer than the critical resolution, one does not necessarily obtain better model performance in terms of runoff, evapotranspiration, and total zone soil moisture with increasing spatial resolution if the VIC-3L model parameters are calibrated at each spatial resolution. Also, model parameters calibrated at a coarse resolution can be applied to finer resolutions to obtain generally comparable results. However, model parameters calibrated at finer resolutions cannot result in comparable results when applied to resolutions coarser than the identified critical resolution. In addition, while soil moisture of the total zone is more sensitive to the spatial distributions of soil properties, runoff and evaporation are more sensitive to the spatial distribution of daily precipitation at the watershed being studied. JF - Journal of Hydrology AU - Liang, Xu AU - Guo, Jianzhong AU - Leung, L Ruby A2 - Smith, Michael B. A2 - Georgakakos, Konstantine P. A2 - Liang, Xu Y1 - 2004/10// PY - 2004 DA - October 2004 SP - 287 EP - 310 PB - Elsevier, Amsterdam VL - 298 IS - 1-4 SN - 0022-1694, 0022-1694 KW - United States KW - soils KW - hydrology KW - NEXRAD KW - numerical models KW - moisture KW - rivers and streams KW - data processing KW - watersheds KW - radar methods KW - calibration KW - evapotranspiration KW - spatial variations KW - Oklahoma KW - Bryan County Oklahoma KW - infiltration KW - runoff KW - digital simulation KW - drainage basins KW - DMIP Program KW - Blue River KW - diurnal variations KW - distributed models KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51660694?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology&rft.atitle=Assessment+of+the+effects+of+spatial+resolutions+on+daily+water+flux+simulations&rft.au=Liang%2C+Xu%3BGuo%2C+Jianzhong%3BLeung%2C+L+Ruby&rft.aulast=Liang&rft.aufirst=Xu&rft.date=2004-10-01&rft.volume=298&rft.issue=1-4&rft.spage=287&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology&rft.issn=00221694&rft_id=info:doi/10.1016%2Fj.jhydrol.2003.07.007 L2 - http://www.sciencedirect.com/science/journal/00221694 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 45 N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - JHYDA7 N1 - SubjectsTermNotLitGenreText - Blue River; Bryan County Oklahoma; calibration; data processing; digital simulation; distributed models; diurnal variations; DMIP Program; drainage basins; evapotranspiration; hydrology; infiltration; moisture; NEXRAD; numerical models; Oklahoma; radar methods; rivers and streams; runoff; soils; spatial variations; United States; watersheds DO - http://dx.doi.org/10.1016/j.jhydrol.2003.07.007 ER - TY - JOUR T1 - Climate Change and Energy Technologies AN - 19649398; 6039401 AB - The long time scale of the climate change problem and the inherent nature of the carbon cycle bring important implications for present technology development efforts. Even if major technology improvements are achieved for non-carbon-emitting technologies such as energy-intensity improvements, wind, solar, biomass, and nuclear over the course of the 21 super(st) century, most examinations of potential future greenhouse emissions conclude that additional technology development will be required to stabilize greenhouse gas concentrations. The development of an expanded suite of technologies including carbon capture and disposal, hydrogen systems and biotechnology hold the potential to dramatically reduce the cost of stabilizing greenhouse gas concentrations. This paper examines these technologies in the context of a global integrated assessment model of energy, agriculture, land-use, economics, and carbon cycle processes. JF - Mitigation and Adaptation Strategies for Global Change AU - Edmonds, JA AD - Pacific Northwest National Laboratory, Joint Global Change Research Institute at the University of Maryland in College Park, 8400 Baltimore Avenue, Suite 201, College Park, MD, 20740-2496, jae@pnl.gov Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 391 EP - 416 PB - Kluwer Academic Publishers VL - 9 IS - 4 SN - 1381-2386, 1381-2386 KW - Pollution Abstracts KW - Climatic changes KW - agriculture KW - Carbon cycle KW - Hydrogen KW - Biomass KW - Land use KW - adaptability KW - Economics KW - greenhouses KW - Emissions KW - Greenhouse gases KW - Biotechnology KW - Technology KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19649398?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mitigation+and+Adaptation+Strategies+for+Global+Change&rft.atitle=Climate+Change+and+Energy+Technologies&rft.au=Edmonds%2C+JA&rft.aulast=Edmonds&rft.aufirst=JA&rft.date=2004-10-01&rft.volume=9&rft.issue=4&rft.spage=391&rft.isbn=&rft.btitle=&rft.title=Mitigation+and+Adaptation+Strategies+for+Global+Change&rft.issn=13812386&rft_id=info:doi/10.1023%2FB%3AMITI.0000038846.11924.5f LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-03-01 N1 - Last updated - 2015-03-30 N1 - SubjectsTermNotLitGenreText - Climatic changes; Carbon cycle; agriculture; Hydrogen; Biomass; Land use; adaptability; Economics; Emissions; greenhouses; Greenhouse gases; Biotechnology; Technology DO - http://dx.doi.org/10.1023/B:MITI.0000038846.11924.5f ER - TY - JOUR T1 - MIRAGE: Model description and evaluation of aerosols and trace gases AN - 17293417; 6063216 AB - The Model for Integrated Research on Atmospheric Global Exchanges (MIRAGE) modeling system, designed to study the impacts of anthropogenic aerosols on the global environment, is described. MIRAGE consists of a chemical transport model coupled online with a global climate model. The chemical transport model simulates trace gases, aerosol number, and aerosol chemical component mass (sulfate, methane sulfonic acid (MSA), organic matter, black carbon (BC), sea salt, and mineral dust) for four aerosol modes (Aitken, accumulation, coarse sea salt, and coarse mineral dust) using the modal aerosol dynamics approach. Cloud-phase and interstitial aerosol are predicted separately. The climate model, based on Community Climate Model, Version 2 (CCM2), has physically based treatments of aerosol direct and indirect forcing. Stratiform cloud water and droplet number are simulated using a bulk microphysics parameterization that includes aerosol activation. Aerosol and trace gas species simulated by MIRAGE are presented and evaluated using surface and aircraft measurements. Surface-level SO sub(2) in North American and European source regions is higher than observed. SO sub(2) above the boundary layer is in better agreement with observations, and surface-level SO sub(2) at marine locations is somewhat lower than observed. Comparison with other models suggests insufficient SO sub(2) dry deposition; increasing the deposition velocity improves simulated SO sub(2). Surface-level sulfate in North American and European source regions is in good agreement with observations, although the seasonal cycle in Europe is stronger than observed. Surface-level sulfate at high-latitude and marine locations, and sulfate above the boundary layer, are higher than observed. This is attributed primarily to insufficient wet removal; increasing the wet removal improves simulated sulfate at remote locations and aloft. Because of the high sulfate bias, radiative forcing estimates for anthropogenic sulfur given in 2001 by S. J. Ghan and colleagues are probably too high. Surface-level dimethyl sulfide (DMS) is similar to 40% higher than observed, and the seasonal cycle shows too much DMS in local winter, partially caused by neglect of oxidation by NO sub(3). Surface-level MSA at marine locations is similar to 80% higher than observed, also attributed to insufficient wet removal. Surface-level BC is similar to 50% lower than observed in the United States and similar to 40% lower than observed globally. Treating BC as initially hydrophobic would lessen this bias. Surface-level organic matter is lower than observed in the United States, similar to BC, but shows no bias in the global comparison. Surface-level sea salt concentrations are similar to 30% lower than observed, partly caused by low temporal variance of the model's 10 m wind speeds. Submicrometer sea salt is strongly underestimated by the emissions parameterization. Dust concentrations are within a factor of 3 at most sites but tend to be lower than observed, primarily because of neglect of very large particles and underestimation of emissions and vertical transport under high-wind conditions. Accumulation and Aitken mode number concentrations and mean sizes at the surface over ocean, and condensation nuclei concentrations aloft over the Pacific, are in fair agreement with observations. Concentrations over land are generally higher than observations, with mean sizes correspondingly lower than observations, especially at some European locations. Increasing the assumed size of emitted particles produces better agreement at the surface over land, and reducing the particle nucleation rate improves the agreement aloft over land. JF - Journal of Geophysical Research. D. Atmospheres AU - Easter, Richard C AU - Ghan, Steven J AU - Zhang, Yang AU - Saylor, Rick D AU - Chapman, Elaine G AU - Laulainen, Nels S AU - Abdul-Razzak, Hayder AU - Leung, LRuby AU - Bian, Xindi AU - Zaveri, Rahul A AD - Pacific Northwest National Laboratory, Richland, Washington, USA Y1 - 2004/10// PY - 2004 DA - Oct 2004 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 USA, [mailto:service@agu.org], [URL:http://www.agu.org] VL - 109 IS - D20 SN - 0148-0227, 0148-0227 KW - Black carbon KW - Condensation nuclei KW - Dimethyl sulfide KW - Methanesulfonic acid KW - Sulfur dioxide KW - ASFA 3: Aquatic Pollution & Environmental Quality; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Citation No. D20210 KW - Q5 01503:Characteristics, behavior and fate KW - M2 551.510.42:Air Pollution (551.510.42) KW - Q2 02188:Atmospheric chemistry KW - O 2070:Meteorology KW - O 4060:Pollution - Environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17293417?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.atitle=MIRAGE%3A+Model+description+and+evaluation+of+aerosols+and+trace+gases&rft.au=Easter%2C+Richard+C%3BGhan%2C+Steven+J%3BZhang%2C+Yang%3BSaylor%2C+Rick+D%3BChapman%2C+Elaine+G%3BLaulainen%2C+Nels+S%3BAbdul-Razzak%2C+Hayder%3BLeung%2C+LRuby%3BBian%2C+Xindi%3BZaveri%2C+Rahul+A&rft.aulast=Easter&rft.aufirst=Richard&rft.date=2004-10-01&rft.volume=109&rft.issue=D20&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.issn=01480227&rft_id=info:doi/10.1029%2F2004JD004571 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-03-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1029/2004JD004571 ER - TY - JOUR T1 - Sequence optimization as an alternative to de novo analysis of tandem mass spectrometry data AN - 17730333; 6029729 AB - MOTIVATION: Peptide identification following tandem mass spectrometry (MS/MS) is usually achieved by searching for the best match between the mass spectrum of an unidentified peptide and model spectra generated from peptides in a sequence database. This methodology will be successful only if the peptide under investigation belongs to an available database. Our objective is to develop and test the performance of a heuristic optimization algorithm capable of dealing with some features commonly found in actual MS/MS spectra that tend to stop simpler deterministic solution approaches. RESULTS: We present the implementation of a Genetic Algorithm (GA) in the reconstruction of amino acid sequences using only spectral features, discuss some of the problems associated with this approach and compare its performance to a de novo sequencing method. The GA can potentially overcome some of the most problematic aspects associated with de novo analysis of real MS/MS data such as missing or unclearly defined peaks and may prove to be a valuable tool in the proteomics field. We assess the performance of our algorithm under conditions of perfect spectral information, in situations where key spectral features are missing, and using real MS/MS spectral data. JF - Bioinformatics AU - Heredia-Langner, Alejandro AU - Cannon, William R AU - Jarman, Kenneth D AU - Jarman, Kristin H AD - Statistical and Mathematical Sciences and Computational Biosciences, Pacific Northwest National Laboratory, Richland, WA Y1 - 2004/09/22/ PY - 2004 DA - 2004 Sep 22 SP - 2296 EP - 2304 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK, [mailto:jnl.samples@oup.co.uk], [URL:http://www3.oup.co.uk/jnls/] VL - 20 IS - 14 SN - 1367-4803, 1367-4803 KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts; Biochemistry Abstracts 2: Nucleic Acids KW - Amino acids KW - Data processing KW - Algorithms KW - Mass spectroscopy KW - Spectrometry KW - Databases KW - Bioinformatics KW - proteomics KW - N 14010:Physical & Computer Methods & Assays KW - W 30965:Miscellaneous, Reviews KW - W4 350:Bioinformatics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17730333?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioinformatics&rft.atitle=Sequence+optimization+as+an+alternative+to+de+novo+analysis+of+tandem+mass+spectrometry+data&rft.au=Heredia-Langner%2C+Alejandro%3BCannon%2C+William+R%3BJarman%2C+Kenneth+D%3BJarman%2C+Kristin+H&rft.aulast=Heredia-Langner&rft.aufirst=Alejandro&rft.date=2004-09-22&rft.volume=20&rft.issue=14&rft.spage=2296&rft.isbn=&rft.btitle=&rft.title=Bioinformatics&rft.issn=13674803&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Algorithms; Mass spectroscopy; Data processing; Databases; proteomics; Amino acids; Bioinformatics; Spectrometry ER - TY - JOUR T1 - Probabilistic representation of gene regulatory networks AN - 17698565; 6029721 AB - MOTIVATION: Recent experiments have established unambiguously that biological systems can have significant cell-to-cell variations in gene expression levels even in isogenic populations. Computational approaches to studying gene expression in cellular systems should capture such biological variations for a more realistic representation. RESULTS: In this paper, we present a new fully probabilistic approach to the modeling of gene regulatory networks that allows for fluctuations in the gene expression levels. The new algorithm uses a very simple representation for the genes, and accounts for the repression or induction of the genes and for the biological variations among isogenic populations simultaneously. Because of its simplicity, introduced algorithm is a very promising approach to model large-scale gene regulatory networks. We have tested the new algorithm on the synthetic gene network library bioengineered recently. The good agreement between the computed and the experimental results for this library of networks, and additional tests, demonstrate that the new algorithm is robust and very successful in explaining the experimental data. AVAILABILITY: The simulation software is available upon request. Supplementary information: Supplementary material will be made available on the OUP server. JF - Bioinformatics AU - Mao, Linyong AU - Resat, Haluk AD - Computational Biosciences Group, Pacific Northwest National Laboratory, PO Box 999, Mail Stop K1-92, Richland, WA Y1 - 2004/09/22/ PY - 2004 DA - 2004 Sep 22 SP - 2258 EP - 2269 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK, [mailto:jnl.samples@oup.co.uk], [URL:http://www3.oup.co.uk/jnls/] VL - 20 IS - 14 SN - 1367-4803, 1367-4803 KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts; Genetics Abstracts KW - Gene expression KW - Computer programs KW - software KW - Gene regulation KW - Algorithms KW - Bioinformatics KW - Computer applications KW - Biotechnology KW - W 30965:Miscellaneous, Reviews KW - W4 350:Bioinformatics KW - G 07300:Theoretical genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17698565?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioinformatics&rft.atitle=Probabilistic+representation+of+gene+regulatory+networks&rft.au=Mao%2C+Linyong%3BResat%2C+Haluk&rft.aulast=Mao&rft.aufirst=Linyong&rft.date=2004-09-22&rft.volume=20&rft.issue=14&rft.spage=2258&rft.isbn=&rft.btitle=&rft.title=Bioinformatics&rft.issn=13674803&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Algorithms; Gene expression; Computer programs; software; Bioinformatics; Computer applications; Biotechnology; Gene regulation ER - TY - JOUR T1 - Mechanisms that regulate production of reactive oxygen species by cytochrome P450 AN - 17767585; 6143194 AB - Mammalian cytochromes P450 (P450) are a family of heme-thiolate enzymes involved in the oxidative metabolism of a variety of endogenous and exogenous lipophilic compounds. Poor coupling of the P450 catalytic cycle results in continuous production of reactive oxygen species (ROS), which affects signaling pathways and other cellular functions. P450 generation of ROS is tightly controlled by regulation of gene transcription as well as by modulation of interactions between protein constituents of the monooxygenase that affects its activity, coupling, and stability. Malfunction of these mechanisms may result in a burst of ROS production, which can cause lipid peroxidation and oxidative stress. In turn, oxidative stress downregulates P450 levels by a variety of feedback mechanisms. This review provides an overview of recent advances in our understanding of these feedback mechanisms that serve to limit P450 production of ROS. Some of the more likely physiological and cellular effects of P450 generation of ROS are also discussed. JF - Toxicology and Applied Pharmacology AU - Zangar, R C AU - Davydov AU - Verma, S AD - Pacific Northwest National Laboratory, 99352, Richland, WA, USA Y1 - 2004/09/15/ PY - 2004 DA - 2004 Sep 15 SP - 316 EP - 331 VL - 199 IS - 3 SN - 0041-008X, 0041-008X KW - Toxicology Abstracts KW - monooxygenase KW - Reactive oxygen species KW - Oxidative stress KW - Gene regulation KW - Reviews KW - Transcription KW - Feedback KW - Cytochrome P450 KW - Lipid peroxidation KW - Oxidative metabolism KW - Signal transduction KW - X 24250:Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17767585?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology+and+Applied+Pharmacology&rft.atitle=Mechanisms+that+regulate+production+of+reactive+oxygen+species+by+cytochrome+P450&rft.au=Zangar%2C+R+C%3BDavydov%3BVerma%2C+S&rft.aulast=Zangar&rft.aufirst=R&rft.date=2004-09-15&rft.volume=199&rft.issue=3&rft.spage=316&rft.isbn=&rft.btitle=&rft.title=Toxicology+and+Applied+Pharmacology&rft.issn=0041008X&rft_id=info:doi/10.1016%2Fj.taap.2004.01.018 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - monooxygenase; Reactive oxygen species; Oxidative stress; Reviews; Gene regulation; Transcription; Feedback; Cytochrome P450; Oxidative metabolism; Lipid peroxidation; Signal transduction DO - http://dx.doi.org/10.1016/j.taap.2004.01.018 ER - TY - JOUR T1 - A practical model for mobile, residual, and entrapped NAPL in water-wet porous media. AN - 66923048; 15457796 AB - Flow of nonvolatile nonaqueous phase liquid (NAPL) and aqueous phases that account for mobile, entrapped, and residual NAPL in variably saturated water-wet porous media is modeled and compared against results from detailed laboratory experiments. Residual saturation formation in the vadose zone is a process that is often ignored in multifluid flow simulators, which might cause an overestimation of the volume of NAPL that reaches the ground water. Mobile NAPL is defined as being continuous in the pore space and flows under a pressure gradient or gravitational body force. Entrapped NAPL is defined as being occluded by the aqueous phase, occurring as immobile ganglia surrounded by aqueous phase in the pore space and formed when NAPL is replaced by the aqueous phase. Residual NAPL is defined as immobile, nonwater entrapped NAPL that does not drain from the pore spaces and is conceptualized as being either continuous or discontinuous. Free NAPL comprises mobile and residual NAPL. The numerical model is formulated on mass conservation equations for oil and water, transported via NAPL and aqueous phases through variably saturated porous media. To account for phase transitions, a primary variable switching scheme is implemented for the oil-mass conservation equation over three phase conditions: (1) aqueous or aqueous-gas with dissolved oil, (2) aqueous or aqueous-gas with entrapped NAPL, and (3) aqueous or aqueous gas with free NAPL. Two laboratory-scale column experiments are modeled to verify the numerical model. Comparisons between the numerical simulations and experiments demonstrate the necessity to include the residual NAPL formation process in multifluid flow simulators. JF - Ground water AU - White, M D AU - Oostrom, M AU - Lenhard, R J AD - Hydrology Group, Pacific Northwest National Laboratory, P.O. Box 999, MS K9-33, Richland, WA 99352, USA. PY - 2004 SP - 734 EP - 746 VL - 42 IS - 5 SN - 0017-467X, 0017-467X KW - Soil KW - 0 KW - Water Pollutants KW - Index Medicus KW - Solubility KW - Porosity KW - Water Movements KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66923048?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=In+situ+characterization+of+porosity+and+permeability+changes+at+high+pressure%3B+application+to+geological+sequestration&rft.au=McGrail%2C+B+P%3BBacon%2C+D+H%3BSaripalli%2C+P%3BShaw%2C+W+J%3BAnonymous&rft.aulast=McGrail&rft.aufirst=B&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-12-21 N1 - Date created - 2004-10-01 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - In situ chemical reduction of aquifer sediments; enhancement of reactive iron phases and TCE dechlorination AN - 51777785; 2004-084711 JF - Environmental Science & Technology, ES & T AU - Szecsody, Jim E AU - Fruchter, Jonathan S AU - Williams, Mark D AU - Vermeul, Vince R AU - Sklarew, Debbie Y1 - 2004/09// PY - 2004 DA - September 2004 SP - 4656 EP - 4663 PB - American Chemical Society, Washington, DC VL - 38 IS - 17 SN - 0013-936X, 0013-936X KW - chlorinated hydrocarbons KW - tetrachloroethylene KW - iron KW - temperature KW - remediation KW - ground water KW - controls KW - chemical reactions KW - sediments KW - halogenated hydrocarbons KW - reduction KW - chemical composition KW - geochemistry KW - chemical ratios KW - pH KW - experimental studies KW - in situ KW - pollutants KW - oxidation KW - dehalogenation KW - pollution KW - hydrochemistry KW - aquifers KW - models KW - organic compounds KW - metals KW - dechlorination KW - trichloroethylene KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51777785?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=In+situ+chemical+reduction+of+aquifer+sediments%3B+enhancement+of+reactive+iron+phases+and+TCE+dechlorination&rft.au=Szecsody%2C+Jim+E%3BFruchter%2C+Jonathan+S%3BWilliams%2C+Mark+D%3BVermeul%2C+Vince+R%3BSklarew%2C+Debbie&rft.aulast=Szecsody&rft.aufirst=Jim&rft.date=2004-09-01&rft.volume=38&rft.issue=17&rft.spage=4656&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 57 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - aquifers; chemical composition; chemical ratios; chemical reactions; chlorinated hydrocarbons; controls; dechlorination; dehalogenation; experimental studies; geochemistry; ground water; halogenated hydrocarbons; hydrochemistry; in situ; iron; metals; models; organic compounds; oxidation; pH; pollutants; pollution; reduction; remediation; sediments; temperature; tetrachloroethylene; trichloroethylene ER - TY - RPRT T1 - Hanford site environmental report for calendar year 2003 AN - 50579792; 2008-118704 JF - Hanford site environmental report for calendar year 2003 A2 - Poston, T. M. A2 - Hanf, R. W. A2 - Dirkes, R. L. A2 - Morasch, L. F. Y1 - 2004/09// PY - 2004 DA - September 2004 VL - PNNL-14687 KW - United States KW - soils KW - hazardous waste KW - Resource Conservation and Recovery Act KW - Washington KW - monitoring KW - isotopes KW - pollutants KW - soil vapor extraction KW - effluents KW - surface water KW - pollution KW - Hanford Site KW - environmental analysis KW - remediation KW - ground water KW - waste management KW - radioactive isotopes KW - toxicity KW - transport KW - decontamination KW - public health KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50579792?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2004-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Hanford+site+environmental+report+for+calendar+year+2003&rft.title=Hanford+site+environmental+report+for+calendar+year+2003&rft.issn=&rft_id=info:doi/ L2 - http://hanford-site.pnl.gov/envreport LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 21 N1 - Availability - Pacific Northwest National Laboratory, Richland, WA, United States N1 - Document feature - illus. incl. 86 tables, sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Summary of the Hanford Site; environmental report for calendar year 2003 AN - 50578269; 2008-118700 JF - Summary of the Hanford Site; environmental report for calendar year 2003 AU - Hanf, R W AU - Morasch, L F AU - Poston, T M AU - Dirkes, R L Y1 - 2004/09// PY - 2004 DA - September 2004 SP - 56 VL - PNNL-14687-SUM KW - United States KW - Washington KW - monitoring KW - pollutants KW - reclamation KW - surface water KW - pollution KW - Hanford Site KW - ecosystems KW - vegetation KW - environmental analysis KW - remediation KW - radioactive waste KW - ground water KW - air pollution KW - waste management KW - planning KW - decontamination KW - sediments KW - ecology KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50578269?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Hanf%2C+R+W%3BMorasch%2C+L+F%3BPoston%2C+T+M%3BDirkes%2C+R+L&rft.aulast=Hanf&rft.aufirst=R&rft.date=2004-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Summary+of+the+Hanford+Site%3B+environmental+report+for+calendar+year+2003&rft.title=Summary+of+the+Hanford+Site%3B+environmental+report+for+calendar+year+2003&rft.issn=&rft_id=info:doi/ L2 - http://hanford-site.pnl.gov/envreport/2003/pdf/2003-envsum.pdf LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Availability - Pacific Northwest National Laboratory, Richland, WA, United States N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Modeling the effects of VOC and NO sub(X) emission sources on ozone formation in Houston during the TexAQS 2000 field campaign AN - 16187574; 6000184 AB - A meteorological and chemical modeling system is used to determine the effect of ethene and propene point source emission rates on the magnitude and distribution of ozone in the vicinity of Houston. The model performance is evaluated using surface and airborne meteorological and chemical measurements made as part of the 2000 Texas Air Quality Study. A simulation that employed the reported mobile, area, biogenic, and point source emissions produced ozone mixing ratios as high as 120 ppb and distributions of nitrogen oxides that were similar to measurements at most locations, but the model underestimated ozone mixing ratios greater than 140 ppb that were located just downwind of petrochemical facilities. When the point source emission rates of ethene and propene were increased by a factor of 10, the simulated peak ozone levels were in better agreement with surface, aircraft, and lidar observations. The magnitude of the simulated ethene and olefin concentrations were in better agreement with canister samples aloft as well; however, there was still a large amount of scatter in the results. While the highest ozone mixing ratios were produced just downwind of large point source emissions of VOCs, sensitivity simulations also showed that reductions in anthropogenic emissions of NO sub(x) would be needed to reduce ozone mixing ratios over a larger area. JF - Atmospheric Environment AU - Jiang, G AU - Fast, J D AD - Pacific Northwest National Laboratory, P.O. BOX 999, K9-30, Richland, WA 99352, USA, jerome.fast@pnl.gov Y1 - 2004/09// PY - 2004 DA - Sep 2004 SP - 5071 EP - 5085 PB - Elsevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl/] VL - 38 IS - 30 SN - 1352-2310, 1352-2310 KW - ethene KW - propene KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts KW - Atmospheric pollution models KW - Volatile organic compounds emissions KW - Ozone mixing ratio KW - Aircraft observations KW - Remote sensing KW - Simulation KW - Petrochemicals KW - Lidar KW - Nitrogen oxides emissions KW - Air quality KW - Nitrogen oxides KW - Ozone formation KW - Emission inventories KW - Photochemicals KW - Emission measurements KW - Urban atmospheric pollution KW - USA, Texas, Houston KW - Volatile organic compounds KW - Urban areas KW - Ozone KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16187574?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Modeling+the+effects+of+VOC+and+NO+sub%28X%29+emission+sources+on+ozone+formation+in+Houston+during+the+TexAQS+2000+field+campaign&rft.au=Jiang%2C+G%3BFast%2C+J+D&rft.aulast=Jiang&rft.aufirst=G&rft.date=2004-09-01&rft.volume=38&rft.issue=30&rft.spage=5071&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2Fj.atmosenv.2004.06.012 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-10-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Atmospheric pollution models; Volatile organic compounds emissions; Aircraft observations; Ozone mixing ratio; Lidar; Urban atmospheric pollution; Air quality; Nitrogen oxides emissions; Ozone formation; Ozone; Emission inventories; Photochemicals; Emission measurements; Remote sensing; Petrochemicals; Simulation; Nitrogen oxides; Volatile organic compounds; Urban areas; USA, Texas, Houston DO - http://dx.doi.org/10.1016/j.atmosenv.2004.06.012 ER - TY - JOUR T1 - Precipitation of Nitrate--Cancrinite in Hanford Tank Sludge AN - 20553477; 6057117 AB - The chemistry of underground storage tanks containing high-level waste at the Hanford Site in Washington State is an area of continued research interest. Thermodynamic models have predicted the formation of analcime and clinoptilolite in Hanford tanks, rather than cancrinite; however, these predictions were based on carbonate-cancrinite. We report the first observation of a nitrate-cancrinite [possibly Na sub(8)(K,Cs)(AlSiO sub(4)) sub(6)(NO sub(3)) sub(2) times nH sub(2)O] extracted from a Hanford tank 241-AP-101 sample that was evaporated to 6, 8, and 10 M NaOH concentrations. The nitrate-cancrinite phase formed spherical aggregates (4 mu m in diameter) that consisted of platy hexagonal crystals ( similar to 0.2 mu m thick). Cesium-137 was concentrated in these aluminosilicate structures. These phases possessed a morphology identical to that of nitrate-cancrinite synthesized using simulant tests of nonradioactive tank waste, supporting the contention that it is possible to develop nonradioactive artificial sludges. This investigation points to the continued importance of understanding the solubility of NO sub(3)-cancrinite and related phases. Knowledge of the detailed structure of actual phases in the tank waste helps with thermodynamic modeling of tank conditions and waste processing. JF - Environmental Science & Technology AU - Buck, E C AU - McNamara, B K AD - Pacific Northwest National Laboratory, P.O. Box 999, MSIN P7-27, Richland, Washington 99352, USA, edgar.buck@pnl.gov Y1 - 2004/08/15/ PY - 2004 DA - 2004 Aug 15 SP - 4432 EP - 4438 VL - 38 IS - 16 SN - 0013-936X, 0013-936X KW - Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Prediction KW - Cesium KW - Crystals KW - USA, Washington KW - Testing Procedures KW - Solubility KW - Thermodynamics KW - Underground Storage KW - Wastes KW - Precipitation KW - Sludge KW - Aggregates KW - USA, Washington, Hanford Site KW - Model Studies KW - Underground storage tanks KW - Structure KW - USA, Washington, Hanford KW - Morphology KW - Technology KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20553477?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Precipitation+of+Nitrate--Cancrinite+in+Hanford+Tank+Sludge&rft.au=Buck%2C+E+C%3BMcNamara%2C+B+K&rft.aulast=Buck&rft.aufirst=E&rft.date=2004-08-15&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Underground storage tanks; Cesium; Thermodynamics; Morphology; Prediction; Testing Procedures; Solubility; Underground Storage; Wastes; Crystals; Precipitation; Sludge; Aggregates; Model Studies; Structure; Technology; USA, Washington; USA, Washington, Hanford; USA, Washington, Hanford Site DO - http://dx.doi.org/10.1021/es034943i ER - TY - JOUR T1 - Energy fluence vs. microbial respiration rates in the deep subsurface AN - 869785341; 2011-046547 JF - International Geological Congress, Abstracts = Congres Geologique International, Resumes AU - Onstott, Tullis C AU - Lin, Li-Hung AU - Mislowack, Bianca AU - Davidson, Mark AU - Moser, Duane AU - Gihring, Thomas AU - Pfiffner, Susan AU - Phelps, Tommy AU - Pratt, Lisa AU - Boice, Erik AU - Anonymous Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 1310 EP - 1311 PB - [International Geological Congress], [location varies] VL - 32, Part 2 KW - isotopes KW - biomass KW - sedimentary basins KW - aliphatic hydrocarbons KW - stable isotopes KW - carbon dioxide KW - noble gases KW - basins KW - South Africa KW - reduction KW - chemical composition KW - geochemistry KW - pH KW - Witwatersrand KW - processes KW - alkaline earth metals KW - methane KW - sulfates KW - free energy KW - alkanes KW - paleosalinity KW - organic compounds KW - biogenic processes KW - paleoenvironment KW - metals KW - Southern Africa KW - hydrocarbons KW - DNA KW - Africa KW - strontium KW - energy KW - microorganisms KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/869785341?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.atitle=Energy+fluence+vs.+microbial+respiration+rates+in+the+deep+subsurface&rft.au=Onstott%2C+Tullis+C%3BLin%2C+Li-Hung%3BMislowack%2C+Bianca%3BDavidson%2C+Mark%3BMoser%2C+Duane%3BGihring%2C+Thomas%3BPfiffner%2C+Susan%3BPhelps%2C+Tommy%3BPratt%2C+Lisa%3BBoice%2C+Erik%3BAnonymous&rft.aulast=Onstott&rft.aufirst=Tullis&rft.date=2004-08-01&rft.volume=32%2C+Part+2&rft.issue=&rft.spage=1310&rft.isbn=&rft.btitle=&rft.title=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Italia 2004; 32nd international geological congress N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - IGABBY N1 - SubjectsTermNotLitGenreText - Africa; aliphatic hydrocarbons; alkaline earth metals; alkanes; basins; biogenic processes; biomass; carbon dioxide; chemical composition; DNA; energy; free energy; geochemistry; hydrocarbons; isotopes; metals; methane; microorganisms; noble gases; organic compounds; paleoenvironment; paleosalinity; pH; processes; reduction; sedimentary basins; South Africa; Southern Africa; stable isotopes; strontium; sulfates; Witwatersrand ER - TY - JOUR T1 - A combined parameter scaling and inverse technique to upscale the unsaturated hydraulic parameters for heterogeneous soils AN - 51755317; 2005-013737 JF - Water Resources Research AU - Zhang, Z Fred AU - Ward, Andy L AU - Gee, Glendon W Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 13 PB - American Geophysical Union, Washington, DC VL - 40 IS - 8 SN - 0043-1397, 0043-1397 KW - United States KW - solute transport KW - scale factor KW - hydraulics KW - isotopes KW - moisture KW - combined parameter scaling KW - waste disposal sites KW - unsaturated zone KW - gravel KW - ground water KW - Cenozoic KW - laboratory studies KW - radioactive isotopes KW - sediments KW - Benton County Washington KW - heterogeneity KW - soils KW - Hanford Formation KW - experimental studies KW - Washington KW - soil profiles KW - Quaternary KW - clastic sediments KW - pollutants KW - Columbia River Basalt Group KW - Richland Washington KW - pollution KW - Lu Site KW - Hanford Site KW - silt KW - inverse problem KW - Ringold Formation KW - Miocene KW - models KW - water table KW - Tertiary KW - Neogene KW - Pliocene KW - Pleistocene KW - inverse models KW - field studies KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51755317?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=A+combined+parameter+scaling+and+inverse+technique+to+upscale+the+unsaturated+hydraulic+parameters+for+heterogeneous+soils&rft.au=Zhang%2C+Z+Fred%3BWard%2C+Andy+L%3BGee%2C+Glendon+W&rft.aulast=Zhang&rft.aufirst=Z&rft.date=2004-08-01&rft.volume=40&rft.issue=8&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2003WR002925 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 62 N1 - PubXState - DC N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - Benton County Washington; Cenozoic; clastic sediments; Columbia River Basalt Group; combined parameter scaling; experimental studies; field studies; gravel; ground water; Hanford Formation; Hanford Site; heterogeneity; hydraulics; inverse models; inverse problem; isotopes; laboratory studies; Lu Site; Miocene; models; moisture; Neogene; Pleistocene; Pliocene; pollutants; pollution; Quaternary; radioactive isotopes; Richland Washington; Ringold Formation; scale factor; sediments; silt; soil profiles; soils; solute transport; Tertiary; United States; unsaturated zone; Washington; waste disposal sites; water table DO - http://dx.doi.org/10.1029/2003WR002925 ER - TY - JOUR T1 - Reduction of TcO (sub 4) (super -) by sediment-associated biogenic Fe(II) AN - 51733501; 2005-028936 AB - The potential for reduction of (super 99) TcO (sub 4) (super -) (sub (aq)) to poorly soluble (super 99) TcO (sub 2) . nH (sub 2) O (sub (s)) by biogenic sediment-associated Fe(II) was investigated with three Fe(III)-oxide containing subsurface materials and the dissimilatory metal-reducing subsurface bacterium Shewanella putrefaciens CN32. Two of the subsurface materials from the U.S. Department of Energy"s Hanford and Oak Ridge sites contained significant amounts of Mn(III,IV) oxides and net bioreduction of Fe(III) to Fe(II) was not observed until essentially all of the hydroxylamine HCl-extractable Mn was reduced. In anoxic, unreduced sediment or where Mn oxide bioreduction was incomplete, exogenous biogenic TcO (sub 2) . nH (sub 2) O (sub (s)) was slowly oxidized over a period of weeks. Subsurface materials that were bioreduced to varying degrees and then pasteurized to eliminate biological activity, reduced TcO (sub 4) (super -) (sub (aq)) at rates that generally increased with increasing concentrations of 0.5 N HCl-extractable Fe(II). Two of the sediments showed a common relationship between extractable Fe(II) concentration (in mM) and the first-order reduction rate (in h (super -1) ), whereas the third demonstrated a markedly different trend. A combination of chemical extractions and (super 57) Fe Mossbauer spectroscopy were used to characterize the Fe(III) and Fe(II) phases. There was little evidence of the formation of secondary Fe(II) biominerals as a result of bioreduction, suggesting that the reactive forms of Fe(II) were predominantly surface complexes of different forms. The reduction rates of Tc(VII)O (sub 4) (super -) were slowest in the sediment that contained plentiful layer silicates (illite, vermiculite, and smectite), suggesting that Fe(II) sorption complexes on these phases were least reactive toward pertechnetate. These results suggest that the in situ microbial reduction of sediment-associated Fe(III), either naturally or via redox manipulation, may be effective at immobilizing TcO (sub 4) (super -) (sub (aq)) associated with groundwater contaminant plumes. JF - Geochimica et Cosmochimica Acta AU - Fredrickson, James K AU - Zachara, John M AU - Kennedy, David W AU - Kukkadapu, Ravi K AU - McKinley, James P AU - Heald, Steve M AU - Liu, Chongxuan AU - Plymale, Andrew E AU - Warren, Lesley A Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 3171 EP - 3187 PB - Pergamon, Oxford VL - 68 IS - 15 SN - 0016-7037, 0016-7037 KW - United States KW - sorption KW - imagery KW - iron oxides KW - isotopes KW - complexing KW - Shewanella putrefaciens KW - Shewanella KW - iron KW - remediation KW - ground water KW - Cenozoic KW - radioactive isotopes KW - chemical reactions KW - phase equilibria KW - Tennessee KW - sediments KW - oxides KW - spectra KW - reduction KW - water pollution KW - geochemistry KW - color imagery KW - Mossbauer spectra KW - Oak Ridge National Laboratory KW - technetium KW - experimental studies KW - Washington KW - pollutants KW - pollution KW - Hanford Site KW - Tc-99 KW - Ringold Formation KW - ferrous iron KW - saprolite KW - Tertiary KW - biogenic processes KW - X-ray data KW - Neogene KW - metals KW - bacteria KW - Pliocene KW - SEM data KW - microorganisms KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51733501?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Reduction+of+TcO+%28sub+4%29+%28super+-%29+by+sediment-associated+biogenic+Fe%28II%29&rft.au=Fredrickson%2C+James+K%3BZachara%2C+John+M%3BKennedy%2C+David+W%3BKukkadapu%2C+Ravi+K%3BMcKinley%2C+James+P%3BHeald%2C+Steve+M%3BLiu%2C+Chongxuan%3BPlymale%2C+Andrew+E%3BWarren%2C+Lesley+A&rft.aulast=Fredrickson&rft.aufirst=James&rft.date=2004-08-01&rft.volume=68&rft.issue=15&rft.spage=3171&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2003.10.024 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union fall meeting , symposium on Microbial geochemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 52 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - bacteria; biogenic processes; Cenozoic; chemical reactions; color imagery; complexing; experimental studies; ferrous iron; geochemistry; ground water; Hanford Site; imagery; iron; iron oxides; isotopes; metals; microorganisms; Mossbauer spectra; Neogene; Oak Ridge National Laboratory; oxides; phase equilibria; Pliocene; pollutants; pollution; radioactive isotopes; reduction; remediation; Ringold Formation; saprolite; sediments; SEM data; Shewanella; Shewanella putrefaciens; sorption; spectra; Tc-99; technetium; Tennessee; Tertiary; United States; Washington; water pollution; X-ray data DO - http://dx.doi.org/10.1016/j.gca.2003.10.024 ER - TY - JOUR T1 - Microbial hydrocarbon gases in the Witwatersrand Basin, South Africa; implications for the deep biosphere AN - 51728148; 2005-028941 AB - In this study, compositions and delta (super 13) C and delta (super 2) H isotopic values of hydrocarbon gases from 5 mines in the Witwatersrand basin, South Africa, support the widespread occurrence of microbially produced methane in millions of years-old fissure waters. The presence of microbial methane is, to a large extent, controlled by the geologic formations in which the gases are found. Samples from the Witwatersand Supergroup have the largest microbial component based on delta (super 13) C and delta (super 2) H signatures and CH (sub 4) /C (sub 2) (super +) values. Based on mixing between a microbial CH (sub 4) component and a more (super 13) C-enriched and (super 2) H-depleted C (sub 2) (super +) -rich end member, conservative estimates of the % contribution of microbial CH (sub 4) to the gas samples range from >90% microbial CH (sub 4) at Beatrix, Masimong, and Merriespruit, to between 5 and 80% microbial CH (sub 4) at Evander, and <18% microbial CH (sub 4) at Kloof. The Witwatersrand basin's history of thermal alteration of organic-rich ancient sedimentary units suggests a thermogenic origin for this (super 13) C-enriched end member. Alternatively, the potential for an abiogenic origin similar to hydrocarbon gases produced by water-rock interaction at other Precambrian Shield mines is discussed. Microbial methane is predominantly found in paleo-meteoric fissure waters with delta (super 18) O and delta (super 2) H values that fall on the meteoric waterline, and have temperatures between 30 to 40 degrees C. In contrast, fissure waters with a larger component of nonmicrobial hydrocarbon gases show a trend towards more enriched delta (super 18) O and delta (super 2) H values that fall well above the meteoric waterline, and temperatures of 45 to 60 degrees C. The enrichment in (super 18) O and (super 2) H in these samples, and their high salinity, are similar to the isotopic and compositional characteristics of saline groundwaters and brines produced by water-rock interaction at Precambrian Shield sites elsewhere. The reported 100 Ma ages of fissure waters from the Witwatersrand and Ventersdorp formations suggest that these microbial hydrocarbon gases are the product of in situ methanogenic communities in the deep subsurface of the Witswaterand basin. Small subunit ribosomal RNA genes were amplified using archaeal-specific primer sets from DNA extracts derived from several of these waters. Fissure waters with a high proportion of microbial methane also contained sequences resembling those of known methanogens. JF - Geochimica et Cosmochimica Acta AU - Ward, J A AU - Slater, G F AU - Moser, D P AU - Lin, L H AU - Lacrampe-Couloume, G AU - Bonin, A S AU - Davidson, M AU - Hall, J A AU - Mislowack, B AU - Bellamy, R E S AU - Onstott, T C AU - Sherwood Lollar, B AU - Warren, Lesley A Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 3239 EP - 3250 PB - Pergamon, Oxford VL - 68 IS - 15 SN - 0016-7037, 0016-7037 KW - oxygen KW - Archaea KW - thermal alteration KW - isotopes KW - natural gas KW - enrichment KW - aliphatic hydrocarbons KW - petroleum KW - stable isotopes KW - mixing KW - carbon KW - South Africa KW - deuterium KW - geochemistry KW - Witwatersrand KW - mines KW - meteoric water KW - methane KW - Witwatersrand Supergroup KW - Precambrian KW - isotope ratios KW - C-13/C-12 KW - connate waters KW - O-18/O-16 KW - alkanes KW - depth KW - gases KW - Ventersdorp Supergroup KW - organic compounds KW - biogenic processes KW - RNA KW - hydrogen KW - biosphere KW - Southern Africa KW - hydrocarbons KW - DNA KW - coalbed methane KW - Africa KW - microorganisms KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51728148?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Microbial+hydrocarbon+gases+in+the+Witwatersrand+Basin%2C+South+Africa%3B+implications+for+the+deep+biosphere&rft.au=Ward%2C+J+A%3BSlater%2C+G+F%3BMoser%2C+D+P%3BLin%2C+L+H%3BLacrampe-Couloume%2C+G%3BBonin%2C+A+S%3BDavidson%2C+M%3BHall%2C+J+A%3BMislowack%2C+B%3BBellamy%2C+R+E+S%3BOnstott%2C+T+C%3BSherwood+Lollar%2C+B%3BWarren%2C+Lesley+A&rft.aulast=Ward&rft.aufirst=J&rft.date=2004-08-01&rft.volume=68&rft.issue=15&rft.spage=3239&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2004.02.020 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union fall meeting , symposium on Microbial geochemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 80 N1 - Document feature - illus. incl. sects., 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - Africa; aliphatic hydrocarbons; alkanes; Archaea; biogenic processes; biosphere; C-13/C-12; carbon; coalbed methane; connate waters; depth; deuterium; DNA; enrichment; gases; geochemistry; hydrocarbons; hydrogen; isotope ratios; isotopes; meteoric water; methane; microorganisms; mines; mixing; natural gas; O-18/O-16; organic compounds; oxygen; petroleum; Precambrian; RNA; South Africa; Southern Africa; stable isotopes; thermal alteration; Ventersdorp Supergroup; Witwatersrand; Witwatersrand Supergroup DO - http://dx.doi.org/10.1016/j.gca.2004.02.020 ER - TY - JOUR T1 - Minimum temperatures, diurnal temperature ranges, and temperature inversions in limestone sinkholes of different sizes and shapes AN - 51622690; 2006-020043 JF - Journal of Applied Meteorology AU - Whiteman, C David AU - Haiden, T AU - Pospichal, Bernhard AU - Eisenbach, Stefan AU - Steinacker, Reinhold Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 1224 EP - 1236 PB - American Meteorological Society, Boston, MA VL - 43 IS - 8 SN - 0894-8763, 0894-8763 KW - limestone KW - snow cover KW - Alps KW - Lunz Austria KW - Europe KW - temperature KW - sedimentary rocks KW - Limestone Alps KW - Central Europe KW - snow KW - diurnal variations KW - meteorology KW - dolines KW - weather observations KW - landform evolution KW - Austria KW - Hetzkogel Plateau KW - sinkholes KW - Northern Limestone Alps KW - Gstettner-Alm Austria KW - geomorphology KW - Gruenloch Basin KW - carbonate rocks KW - solution features KW - Eastern Alps KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51622690?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Meteorology&rft.atitle=Minimum+temperatures%2C+diurnal+temperature+ranges%2C+and+temperature+inversions+in+limestone+sinkholes+of+different+sizes+and+shapes&rft.au=Whiteman%2C+C+David%3BHaiden%2C+T%3BPospichal%2C+Bernhard%3BEisenbach%2C+Stefan%3BSteinacker%2C+Reinhold&rft.aulast=Whiteman&rft.aufirst=C&rft.date=2004-08-01&rft.volume=43&rft.issue=8&rft.spage=1224&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Meteorology&rft.issn=08948763&rft_id=info:doi/ L2 - http://journals.ametsoc.org/loi/apme LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 32 N1 - PubXState - MA N1 - Document feature - illus. incl. 4 tables, sketch map N1 - Last updated - 2012-06-15 N1 - CODEN - JAMOAX N1 - SubjectsTermNotLitGenreText - Alps; Austria; carbonate rocks; Central Europe; diurnal variations; dolines; Eastern Alps; Europe; geomorphology; Gruenloch Basin; Gstettner-Alm Austria; Hetzkogel Plateau; landform evolution; limestone; Limestone Alps; Lunz Austria; meteorology; Northern Limestone Alps; sedimentary rocks; sinkholes; snow; snow cover; solution features; temperature; weather observations ER - TY - JOUR T1 - Inversion breakup in small Rocky Mountain and alpine basins AN - 51622654; 2006-020042 JF - Journal of Applied Meteorology AU - Whiteman, C David AU - Pospichal, Bernhard AU - Eisenbach, Stefan AU - Weihs, Philipp AU - Clements, Craig B AU - Steinacker, Reinhold AU - Mursch-Radlgruber, Erich AU - Dorninger, Manfred Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 1069 EP - 1082 PB - American Meteorological Society, Boston, MA VL - 43 IS - 8 SN - 0894-8763, 0894-8763 KW - United States KW - limestone KW - snow cover KW - Alps KW - Lunz Austria KW - Europe KW - temperature KW - Cache County Utah KW - Rich County Utah KW - sedimentary rocks KW - Central Europe KW - snow KW - diurnal variations KW - meteorology KW - climate KW - North America KW - weather observations KW - landform evolution KW - U. S. Rocky Mountains KW - Austria KW - sinkholes KW - low temperature KW - Utah KW - geomorphology KW - Colorado KW - carbonate rocks KW - solution features KW - winds KW - Rocky Mountains KW - Eastern Alps KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51622654?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Meteorology&rft.atitle=Inversion+breakup+in+small+Rocky+Mountain+and+alpine+basins&rft.au=Whiteman%2C+C+David%3BPospichal%2C+Bernhard%3BEisenbach%2C+Stefan%3BWeihs%2C+Philipp%3BClements%2C+Craig+B%3BSteinacker%2C+Reinhold%3BMursch-Radlgruber%2C+Erich%3BDorninger%2C+Manfred&rft.aulast=Whiteman&rft.aufirst=C&rft.date=2004-08-01&rft.volume=43&rft.issue=8&rft.spage=1069&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Meteorology&rft.issn=08948763&rft_id=info:doi/ L2 - http://journals.ametsoc.org/loi/apme LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 46 N1 - PubXState - MA N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2012-06-15 N1 - CODEN - JAMOAX N1 - SubjectsTermNotLitGenreText - Alps; Austria; Cache County Utah; carbonate rocks; Central Europe; climate; Colorado; diurnal variations; Eastern Alps; Europe; geomorphology; landform evolution; limestone; low temperature; Lunz Austria; meteorology; North America; Rich County Utah; Rocky Mountains; sedimentary rocks; sinkholes; snow; snow cover; solution features; temperature; U. S. Rocky Mountains; United States; Utah; weather observations; winds ER - TY - JOUR T1 - Sorption and oxic degradation of the explosive CL-20 during transport in subsurface sediments AN - 51498928; 2007-012902 JF - Chemosphere (Oxford) AU - Szecsody, Jim E AU - Girvin, D C AU - Devary, B J AU - Campbell, J A Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 593 EP - 610 PB - Elsevier VL - 56 IS - 6 SN - 0045-6535, 0045-6535 KW - sorption KW - degradation KW - time series analysis KW - pollutants KW - statistical analysis KW - unsaturated zone KW - pollution KW - trinitrotoluene KW - RDX KW - iron KW - ground water KW - ferrous iron KW - triazines KW - organic compounds KW - explosives KW - saturation KW - isotherms KW - metals KW - sediments KW - transformations KW - nitrite ion KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51498928?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere+%28Oxford%29&rft.atitle=Sorption+and+oxic+degradation+of+the+explosive+CL-20+during+transport+in+subsurface+sediments&rft.au=Szecsody%2C+Jim+E%3BGirvin%2C+D+C%3BDevary%2C+B+J%3BCampbell%2C+J+A&rft.aulast=Szecsody&rft.aufirst=Jim&rft.date=2004-08-01&rft.volume=56&rft.issue=6&rft.spage=593&rft.isbn=&rft.btitle=&rft.title=Chemosphere+%28Oxford%29&rft.issn=00456535&rft_id=info:doi/10.1016%2Fj.chemosphere.2004.04.028 L2 - http://www.sciencedirect.com/science/journal/00456535 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 48 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CMSHAF N1 - SubjectsTermNotLitGenreText - degradation; explosives; ferrous iron; ground water; iron; isotherms; metals; nitrite ion; organic compounds; pollutants; pollution; RDX; saturation; sediments; sorption; statistical analysis; time series analysis; transformations; triazines; trinitrotoluene; unsaturated zone DO - http://dx.doi.org/10.1016/j.chemosphere.2004.04.028 ER - TY - JOUR T1 - Multiphase reactive transport modeling of seasonal infiltration events and stable isotope fractionation in unsaturated zone pore water and vapor at the Hanford Site AN - 51133135; 2005-061928 AB - Numerical simulations of transport and isotope fractionation provide a method to quantitatively interpret vadose zone pore water stable isotope depth profiles based on soil properties, climatic conditions, and infiltration. We incorporate the temperature-dependent equilibration of stable isotopic species between water and water vapor, and their differing diffusive transport properties into the thermodynamic database of the reactive transport code TOUGHREACT. These simulations are used to illustrate the evolution of stable isotope profiles in semiarid regions where recharge during wet seasons disturbs the drying profile traditionally associated with vadose zone pore waters. Alternating wet and dry seasons lead to annual fluctuations in moisture content, capillary pressure, and stable isotope compositions in the vadose zone. Periodic infiltration models capture the effects of seasonal increases in precipitation and predict stable isotope profiles that are distinct from those observed under drying (zero infiltration) conditions. After infiltration, evaporation causes a shift to higher delta (super 18) O and delta D values, which are preserved in the deeper pore waters. The magnitude of the isotopic composition shift preserved in deep vadose zone pore waters varies inversely with the rate of infiltration. JF - Vadose Zone Journal AU - Singleton, Michael J AU - Sonnenthal, Eric L AU - Conrad, Mark E AU - DePaolo, Donald J AU - Gee, Glendon W A2 - Finsterle, Stefan A2 - Oldenburg, Curtis M. Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 775 EP - 785 PB - Soil Science Society of America, Madison, WI VL - 3 IS - 3 KW - United States KW - oxygen KW - isotopes KW - data processing KW - unsaturated zone KW - water vapor KW - atmospheric precipitation KW - stable isotopes KW - ground water KW - chemical reactions KW - transport KW - digital simulation KW - TOUGHREACT KW - applications KW - geochemistry KW - water KW - meteoric water KW - Washington KW - numerical models KW - isotope ratios KW - Hanford Site KW - O-18/O-16 KW - hydrochemistry KW - computer programs KW - recharge KW - D/H KW - infiltration KW - hydrogen KW - multiphase flow KW - seasonal variations KW - pore water KW - 21:Hydrogeology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51133135?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Multiphase+reactive+transport+modeling+of+seasonal+infiltration+events+and+stable+isotope+fractionation+in+unsaturated+zone+pore+water+and+vapor+at+the+Hanford+Site&rft.au=Singleton%2C+Michael+J%3BSonnenthal%2C+Eric+L%3BConrad%2C+Mark+E%3BDePaolo%2C+Donald+J%3BGee%2C+Glendon+W&rft.aulast=Singleton&rft.aufirst=Michael&rft.date=2004-08-01&rft.volume=3&rft.issue=3&rft.spage=775&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Conference title - TOUGH symposium N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 38 N1 - PubXState - WI N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on January 6, 2005 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - applications; atmospheric precipitation; chemical reactions; computer programs; D/H; data processing; digital simulation; geochemistry; ground water; Hanford Site; hydrochemistry; hydrogen; infiltration; isotope ratios; isotopes; meteoric water; multiphase flow; numerical models; O-18/O-16; oxygen; pore water; recharge; seasonal variations; stable isotopes; TOUGHREACT; transport; United States; unsaturated zone; Washington; water; water vapor ER - TY - JOUR T1 - Migration of saline solutions in variably saturated porous media AN - 50518488; 2009-020719 AB - Migration of concentrated NaNO (sub 3) solutions in homogeneous packs of pre-wetted silica sands was investigated using a light transmission system. Solutions of 5 molal NaNO (sub 3) were found to migrate downward 24-62% faster than pure water, in an unstable, fingered manner. This behavior was attributed primarily to a surface tension induced, non-zero apparent contact angle between the imbibing and the resident fluids. For saline solutions of similar surface tension to that of pure water (achieved by the addition of 2% methanol), the migration rates and plume shapes were comparable to that of water, demonstrating that density was not the primary source of the observed differences in migration patterns. At depths where resident saturation increased above residual, the migration process appeared to occur via film flow with slight changes in saturation (<4%), rather than in a series of abrupt jumps, as observed at shallower depths. A method for contact angle scaling was used to illustrate the effects of non-zero contact angles on capillary pressure-saturation curves. JF - Journal of Contaminant Hydrology AU - Weisbrod, Noam AU - Niemet, Michael R AU - Rockhold, Mark L AU - McGinnis, Thomas AU - Selker, John S Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 109 EP - 133 PB - Elsevier, Amsterdam VL - 72 IS - 1-4 SN - 0169-7722, 0169-7722 KW - imagery KW - contaminant plumes KW - moisture KW - data KW - salt water KW - contact angle KW - ground water KW - sedimentary rocks KW - hydrodynamics KW - interpretation KW - film flow KW - concentration KW - sodium chloride KW - experimental studies KW - chemically precipitated rocks KW - pollution KW - nitrates KW - surface tension KW - porous materials KW - capillarity KW - migration of elements KW - evaporites KW - aquifers KW - models KW - saturation KW - dissolved materials KW - infiltration KW - tension KW - salt KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50518488?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Contaminant+Hydrology&rft.atitle=Migration+of+saline+solutions+in+variably+saturated+porous+media&rft.au=Weisbrod%2C+Noam%3BNiemet%2C+Michael+R%3BRockhold%2C+Mark+L%3BMcGinnis%2C+Thomas%3BSelker%2C+John+S&rft.aulast=Weisbrod&rft.aufirst=Noam&rft.date=2004-08-01&rft.volume=72&rft.issue=1-4&rft.spage=109&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/10.1016%2Fj.jconhyd.2003.10.013 L2 - http://www.sciencedirect.com/science/journal/01697722 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2009-01-01 N1 - SuppNotes - Based on Publisher-supplied data N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; capillarity; chemically precipitated rocks; concentration; contact angle; contaminant plumes; data; dissolved materials; evaporites; experimental studies; film flow; ground water; hydrodynamics; imagery; infiltration; interpretation; migration of elements; models; moisture; nitrates; pollution; porous materials; salt; salt water; saturation; sedimentary rocks; sodium chloride; surface tension; tension DO - http://dx.doi.org/10.1016/j.jconhyd.2003.10.013 ER - TY - JOUR T1 - Pre-eruptive pressures and temperatures of Columbia River basalt group (USA) and tectonic implications AN - 50479768; 2009-028661 JF - International Geological Congress, Abstracts = Congres Geologique International, Resumes AU - Caprarelli, Graziella AU - Reidel, Stephen P AU - Anonymous Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 797 EP - 798 PB - [International Geological Congress], [location varies] VL - 32, Part 1 KW - United States KW - flood basalts KW - volcanic rocks KW - igneous rocks KW - Pomona Basalt KW - rifting KW - temperature KW - electron probe data KW - Cenozoic KW - Oregon KW - mineral composition KW - volcanism KW - basalts KW - X-ray fluorescence spectra KW - tectonics KW - spectra KW - trace elements KW - chemical composition KW - geochemistry KW - Washington KW - pressure KW - Columbia River Basalt Group KW - Grande Ronde Basalt KW - Miocene KW - Saddle Mountains Basalt KW - Tertiary KW - plate tectonics KW - Neogene KW - magmas KW - eruptions KW - large igneous provinces KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50479768?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.atitle=Pre-eruptive+pressures+and+temperatures+of+Columbia+River+basalt+group+%28USA%29+and+tectonic+implications&rft.au=Caprarelli%2C+Graziella%3BReidel%2C+Stephen+P%3BAnonymous&rft.aulast=Caprarelli&rft.aufirst=Graziella&rft.date=2004-08-01&rft.volume=32%2C+Part+1&rft.issue=&rft.spage=797&rft.isbn=&rft.btitle=&rft.title=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Italia 2004; 32nd international geological congress N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - IGABBY N1 - SubjectsTermNotLitGenreText - basalts; Cenozoic; chemical composition; Columbia River Basalt Group; electron probe data; eruptions; flood basalts; geochemistry; Grande Ronde Basalt; igneous rocks; large igneous provinces; magmas; mineral composition; Miocene; Neogene; Oregon; plate tectonics; Pomona Basalt; pressure; rifting; Saddle Mountains Basalt; spectra; tectonics; temperature; Tertiary; trace elements; United States; volcanic rocks; volcanism; Washington; X-ray fluorescence spectra ER - TY - JOUR T1 - Should software hold data hostage? AN - 18061709; 5993747 AB - Software tools have become an indispensable part of modern biology, but issues surrounding propriety file formats and closed software architectures threaten to stunt the growth of this rapidly expanding area of research. In an effort to ensure continuous software upgrades to provide a continuous income stream, some software companies have resorted to holding the user's data hostage by locking them into proprietary file and data formats. Although this might make sense from a business perspective, it violates fundamental principles of data ownership and control. Such tactics should not be tolerated by the scientific community. The future of data-intensive biology depends on ensuring open data standards and freely exchangeable file formats. JF - Nature Biotechnology AU - Wiley, H S AU - Michaels, G S AD - Part of the Biomolecular Systems Initiative, Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, USA, steven.wiley@pnl.gov Y1 - 2004/08// PY - 2004 DA - Aug 2004 SP - 1037 EP - 1038 VL - 22 IS - 8 SN - 1087-0156, 1087-0156 KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - Computer programs KW - software KW - Reviews KW - W 30965:Miscellaneous, Reviews KW - W4 350:Bioinformatics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18061709?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+Biotechnology&rft.atitle=Should+software+hold+data+hostage%3F&rft.au=Wiley%2C+H+S%3BMichaels%2C+G+S&rft.aulast=Wiley&rft.aufirst=H&rft.date=2004-08-01&rft.volume=22&rft.issue=8&rft.spage=1037&rft.isbn=&rft.btitle=&rft.title=Nature+Biotechnology&rft.issn=10870156&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Computer programs; software; Reviews ER - TY - JOUR T1 - Technetium reduction in sediments of a shallow aquifer exhibiting dissimilatory iron reduction potential. AN - 67310719; 19712393 AB - Pertechnetate ion [Tc(VII)O(4) (-)] reduction rate was determined in core samples from a shallow sandy aquifer located on the US Atlantic Coastal Plain. The aquifer is generally low in dissolved O(2) (<1 mg L(-1)) and composed of weakly indurated late Pleistocene sediments differing markedly in physicochemical properties. Thermodynamic calculations, X-ray absorption spectroscopy and statistical analyses were used to establish the dominant reduction mechanisms, constraints on Tc solubility, and the oxidation state, and speciation of sediment reduction products. The extent of Tc(VII) reduction differed markedly between sediments (ranging from 0% to 100% after 10 days of equilibration), with low solubility Tc(IV) hydrous oxide the major solid phase reduction product. The dominant electron donor in the sediments proved to be (0.5 M HCl extractable) Fe(II). Sediment Fe(II)/Tc(VII) concentrations >4.3 were generally sufficient for complete reduction of Tc(VII) added [1-2.5 micromol (dry wt. sediment) g(-1)]. At these Fe(II) concentrations, the Tc (VII) reduction rate exceeded that observed previously for Fe(II)-mediated reduction on isolated solids of geologic or biogenic origin, suggesting that sediment Fe(II) was either more reactive and/or that electron shuttles played a role in sediment Tc(VII) reduction processes. In buried peats, Fe(II) in excess did not result in complete removal of Tc from solution, perhaps because organic complexation of Tc(IV) limited formation of the Tc(IV) hydrous oxide. In some sands exhibiting Fe(II)/Tc(VII) concentrations <1.1, there was presumptive evidence for direct enzymatic reduction of Tc(VII). Addition of organic electron donors (acetate, lactate) resulted in microbial reduction of (up to 35%) Fe(III) and corresponding increases in extractable Fe(II) in sands that exhibited lowest initial Tc(VII) reduction and highest hydraulic conductivities, suggesting that accelerated microbial reduction of Fe(III) could offer a viable means of attenuating mobile Tc(VII) in this type of sediment system. JF - FEMS microbiology ecology AU - Wildung, R E AU - Li, S W AU - Murray, C J AU - Krupka, K M AU - Xie, Y AU - Hess, N J AU - Roden, E E AD - Pacific Northwest National Laboratory, P.O. Box 999, MS P7-50, Richland, WA 99352, USA. r.wildung@pnl.gov Y1 - 2004/07/01/ PY - 2004 DA - 2004 Jul 01 SP - 151 EP - 162 VL - 49 IS - 1 KW - Ferrous Compounds KW - 0 KW - Water Pollutants, Radioactive KW - Sodium Pertechnetate Tc 99m KW - A0730CX801 KW - Index Medicus KW - Oxidation-Reduction KW - Bacteria -- metabolism KW - Fresh Water -- chemistry KW - Fresh Water -- microbiology KW - Geologic Sediments -- chemistry KW - Ferrous Compounds -- metabolism KW - Sodium Pertechnetate Tc 99m -- metabolism KW - Geologic Sediments -- microbiology KW - Water Pollutants, Radioactive -- metabolism KW - Water Microbiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67310719?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=FEMS+microbiology+ecology&rft.atitle=Technetium+reduction+in+sediments+of+a+shallow+aquifer+exhibiting+dissimilatory+iron+reduction+potential.&rft.au=Wildung%2C+R+E%3BLi%2C+S+W%3BMurray%2C+C+J%3BKrupka%2C+K+M%3BXie%2C+Y%3BHess%2C+N+J%3BRoden%2C+E+E&rft.aulast=Wildung&rft.aufirst=R&rft.date=2004-07-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2009-09-01 N1 - Date created - 2009-08-28 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1016/j.femsec.2003.08.016 ER - TY - JOUR T1 - Oxygen-exchange pathways in aluminum polyoxocations AN - 51732997; 2005-028256 AB - Using molecular dynamics simulations and electronic structure methods, we postulate a mechanism to explain the complicated reactivity trends that are observed for oxygen isotope exchange reactions between sites in aluminum polyoxocations of the epsilon -Keggin type and bulk solution. Experimentally, the molecules have four nonequivalent oxygens that differ considerably in reactivity both within a molecule, and between molecules in the series: Al (sub 13) , GaAl (sub 12) , and GeAl (sub 12) [MO (sub 4) Al (sub 12) (OH) (sub 24) (H (sub 2) O) (sub 12) (super n+) (aq); with M = Al(III) for Al (sub 13) , n = 7; M = Ga(III) for GaAl (sub 12) , n = 7; M = Ge(IV) for GeAl (sub 12) , n = 8]. We find that a partly dissociated, metastable intermediate molecule of expanded volume is necessary for exchange of both sets of mu (sub 2) -OH and that the steady-state concentration of this intermediate reflects the bond strengths between the central metal and the mu (sub 4) -O. Thus the central metal exerts extraordinary control over reactions at hydroxyl bridges, although these are three bonds away.This mechanism not only explains the reactivity trends for oxygen isotope exchange in mu (sub 2) -OH and eta -OH (sub 2) sites in the epsilon -Keggin aluminum molecules, but also explains the observation that the reactivities of minerals tend to reflect the presence of highly coordinated oxygens, such as the mu (sub 4) -O in boehmite, alpha -, and gamma -Al (sub 2) O (sub 3) and their Fe(III) analogs. The partial dissociation of these highly coordinated oxygens, coupled with simultaneous activation and displacement of neighboring metal centers, may be a fundamental process by which metals atoms undergo ligand exchanges at mineral surfaces. JF - Geochimica et Cosmochimica Acta AU - Rustad, James R AU - Loring, John S AU - Casey, William H Y1 - 2004/07// PY - 2004 DA - July 2004 SP - 3011 EP - 3017 PB - Pergamon, Oxford VL - 68 IS - 14 SN - 0016-7037, 0016-7037 KW - boehmite KW - dissociation KW - oxygen KW - isotopes KW - coordination KW - bonding KW - hydroxyl ion KW - reactivity KW - ligands KW - aluminum oxides KW - metals KW - aluminum KW - oxides KW - cations KW - molecular dynamics KW - crystal chemistry KW - geochemistry KW - electrons KW - 02D:Isotope geochemistry KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51732997?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Oxygen-exchange+pathways+in+aluminum+polyoxocations&rft.au=Rustad%2C+James+R%3BLoring%2C+John+S%3BCasey%2C+William+H&rft.aulast=Rustad&rft.aufirst=James&rft.date=2004-07-01&rft.volume=68&rft.issue=14&rft.spage=3011&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2003.12.021 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 37 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aluminum; aluminum oxides; boehmite; bonding; cations; coordination; crystal chemistry; dissociation; electrons; geochemistry; hydroxyl ion; isotopes; ligands; metals; molecular dynamics; oxides; oxygen; reactivity DO - http://dx.doi.org/10.1016/j.gca.2003.12.021 ER - TY - JOUR T1 - Biotransformation of two-line silica-ferrihydrite by a dissimilatory Fe(III)-reducing bacterium; formation of carbonate green rust in the presence of phosphate AN - 51728584; 2005-031967 AB - The reductive biotransformation of two Si-ferrihydrite coprecipitates (1 and 5 mole % Si) by Shewanella putrefaciens, strain CN32, was investigated in 1,4-piperazinediethanesulfonic acid-buffered media (pH approximately 7) with lactate as the electron donor. Anthraquinone-2,6-disulfonate, an electron shuttle, was present in the media. Experiments were performed without and with PO (sub 4) (super 3-) (P) (1 to 20 mmol/L) in media containing 50 mmol/L Fe. Our objectives were to define the combined effects of SiO (sub 4) (super 4-) (Si) and P on the bioreducibility and biomineralization of ferrihydrites under anoxic conditions. Iron reduction was measured as a function of time, solids were characterized by powder X-ray diffraction and Mossbauer spectroscopy, and aqueous solutions were analyzed for Si, P, Cl (super -) and inorganic carbon. Both of the ferrihydrites were rapidly reduced regardless of the Si and P content. Si concentration had no effect on the reduction rate or mineralization products. Magnetite was formed in the absence of P whereas carbonate green rust GR(CO (sub 3) (super 2-) ) ([Fe (sub (6-x)) (super II) Fe (super III) (sub x) (OH) (sub 12) ] (super x+) (CO (sub 3) (super 2-) ) (sub 0.5x) . yH (sub 2) O) and vivianite [Fe (sub 3) (PO (sub 4) ) (sub 2) . 8H (sub 2) O], were formed when P was present. GR(CO (sub 3) (super 2-) ) dominated as a mineral product in samples with <4 mmol/L P. The Fe(II)/Fe(III) ratio of GR(CO (sub 3) (super 2-) ) varied with P concentration; the ratio was 2 in 1 mmol/L P and approached 1 with 4- and 10 mmol/L P. Green rust appeared to form by solid-state transformation of ferrihydrite. Media P and Si concentration dictated the mechanism of transformation. In the 1 mole % Si coprecipitate with 1 mmol/L P, an intermediate Fe(II)/Fe(III) phase with structural Fe(II) slowly transformed to GR with time. In contrast, when ferrihydrite contained more Si (5 mole %) and/or contained higher P (4 mmol/L), sorbed Fe(II) and residual ferrihydrite together transformed to GR. Despite similar chemistries, P was shown to have a profound effect on extent of ferrihydrite reduction and biotransformations while that of Si was minimal. JF - Geochimica et Cosmochimica Acta AU - Kukkadapu, Ravi K AU - Zachara, John M AU - Fredrickson, James K AU - Kennedy, David W Y1 - 2004/07// PY - 2004 DA - July 2004 SP - 2799 EP - 2814 PB - Pergamon, Oxford VL - 68 IS - 13 SN - 0016-7037, 0016-7037 KW - X-ray diffraction data KW - Shewanella putrefaciens KW - silicon KW - Shewanella KW - iron KW - laboratory studies KW - ferric iron KW - green rust KW - silica KW - oxides KW - spectra KW - reduction KW - synthesis KW - geochemistry KW - Mossbauer spectra KW - biodegradation KW - experimental studies KW - phosphorus KW - ferrihydrite KW - iron hydroxides KW - hydroxides KW - phosphate ion KW - biogenic processes KW - precipitation KW - metals KW - bacteria KW - transformations KW - SEM data KW - magnetite KW - 02C:Geochemistry of rocks, soils, and sediments KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51728584?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Biotransformation+of+two-line+silica-ferrihydrite+by+a+dissimilatory+Fe%28III%29-reducing+bacterium%3B+formation+of+carbonate+green+rust+in+the+presence+of+phosphate&rft.au=Kukkadapu%2C+Ravi+K%3BZachara%2C+John+M%3BFredrickson%2C+James+K%3BKennedy%2C+David+W&rft.aulast=Kukkadapu&rft.aufirst=Ravi&rft.date=2004-07-01&rft.volume=68&rft.issue=13&rft.spage=2799&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2003.12.024 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 71 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - bacteria; biodegradation; biogenic processes; experimental studies; ferric iron; ferrihydrite; geochemistry; green rust; hydroxides; iron; iron hydroxides; laboratory studies; magnetite; metals; Mossbauer spectra; oxides; phosphate ion; phosphorus; precipitation; reduction; SEM data; Shewanella; Shewanella putrefaciens; silica; silicon; spectra; synthesis; transformations; X-ray diffraction data DO - http://dx.doi.org/10.1016/j.gca.2003.12.024 ER - TY - JOUR T1 - A constitutive model for air-NAPL-water flow in the vadose zone accounting for immobile, non-occluded (residual) NAPL in strongly water-wet porous media AN - 50514687; 2009-020689 AB - A hysteretic constitutive model describing relations among relative permeabilities, saturations, and pressures in fluid systems consisting of air, nonaqueous-phase liquid (NAPL), and water is modified to account for NAPL that is postulated to be immobile in small pores and pore wedges and as films or lenses on water surfaces. A direct outcome of the model is prediction of the NAPL saturation that remains in the vadose zone after long drainage periods (residual NAPL). Using the modified model, water and NAPL (free, entrapped by water, and residual) saturations can be predicted from the capillary pressures and the water and total-liquid saturation-path histories. Relations between relative permeabilities and saturations are modified to account for the residual NAPL by adjusting the limits of integration in the integral expression used for predicting the NAPL relative permeability. When all of the NAPL is either residual or entrapped (i.e., no free NAPL), then the NAPL relative permeability will be zero. We model residual NAPL using concepts similar to those used to model residual water. As an initial test of the constitutive model, we compare predictions to published measurements of residual NAPL. Furthermore, we present results using the modified constitutive theory for a scenario involving NAPL imbibition and drainage. JF - Journal of Contaminant Hydrology AU - Lenhard, R J AU - Oostrom, M AU - Dane, J H Y1 - 2004/07// PY - 2004 DA - July 2004 SP - 261 EP - 282 PB - Elsevier, Amsterdam VL - 71 IS - 1-4 SN - 0169-7722, 0169-7722 KW - water quality KW - air-water interface KW - unsaturated zone KW - pollution KW - porous materials KW - preferential flow KW - ground water KW - aquifers KW - nonaqueous phase liquids KW - models KW - saturation KW - multiphase flow KW - theoretical models KW - mobility KW - pore water KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50514687?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Contaminant+Hydrology&rft.atitle=A+constitutive+model+for+air-NAPL-water+flow+in+the+vadose+zone+accounting+for+immobile%2C+non-occluded+%28residual%29+NAPL+in+strongly+water-wet+porous+media&rft.au=Lenhard%2C+R+J%3BOostrom%2C+M%3BDane%2C+J+H&rft.aulast=Lenhard&rft.aufirst=R&rft.date=2004-07-01&rft.volume=71&rft.issue=1-4&rft.spage=261&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/10.1016%2Fj.jconhyd.2003.10.014 L2 - http://www.sciencedirect.com/science/journal/01697722 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2009-01-01 N1 - SuppNotes - Based on Publisher-supplied data N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - air-water interface; aquifers; ground water; mobility; models; multiphase flow; nonaqueous phase liquids; permeability; pollution; pore water; porous materials; preferential flow; saturation; theoretical models; unsaturated zone; water quality DO - http://dx.doi.org/10.1016/j.jconhyd.2003.10.014 ER - TY - JOUR T1 - Stabilization of CO sub(2) in B2 world: insights on the roles of carbon capture and disposal, hydrogen, and transportation technologies AN - 20517329; 6088812 AB - We examine the potential role of several energy technologies, including carbon capture and dispose (CC and D), hydrogen and advanced transportation systems, on the cost of stabilizing CO sub(2) concentrations. While not currently deployed at scale, CC and D, hydrogen energy systems, and biotechnology have the potential to be major components of the global energy system by the middle of the 21st century. Other technologies, such as renewables, nuclear power and energy efficiency also play critical roles in addressing climate change. The development of advanced technologies in the absence of limitations on the concentration of carbon dioxide need not lead to CO sub(2) stabilization. JF - Energy Economics AU - Edmonds, J AU - Clarke, J AU - Dooley, J AU - Kim, SH AU - Smith, S J AD - Pacific Northwest National Laboratory, Joint Global Change Research Institute at the University of Maryland, 8400 Baltimore Avenue, Suite 201, College Park, MD 20740-2496, USA Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 517 EP - 537 VL - 26 IS - 4 SN - 0140-9883, 0140-9883 KW - Pollution Abstracts; Sustainability Science Abstracts KW - Energy efficiency KW - Transportation KW - Climatic changes KW - Economics KW - Hydrogen KW - Carbon dioxide KW - Greenhouse gases KW - Biotechnology KW - Technology KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20517329?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+Economics&rft.atitle=Stabilization+of+CO+sub%282%29+in+B2+world%3A+insights+on+the+roles+of+carbon+capture+and+disposal%2C+hydrogen%2C+and+transportation+technologies&rft.au=Edmonds%2C+J%3BClarke%2C+J%3BDooley%2C+J%3BKim%2C+SH%3BSmith%2C+S+J&rft.aulast=Edmonds&rft.aufirst=J&rft.date=2004-07-01&rft.volume=26&rft.issue=4&rft.spage=517&rft.isbn=&rft.btitle=&rft.title=Energy+Economics&rft.issn=01409883&rft_id=info:doi/10.1016%2Fj.eneco.2004.04.025 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-01-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Energy efficiency; Transportation; Economics; Climatic changes; Hydrogen; Greenhouse gases; Carbon dioxide; Biotechnology; Technology DO - http://dx.doi.org/10.1016/j.eneco.2004.04.025 ER - TY - JOUR T1 - Modeling greenhouse gas energy technology responses to climate change AN - 20432033; 5924301 AB - Models of the global energy system can help shed light on the competition and complementarities among technologies and energy systems both in the presence and absence of actions to affect the concentration of greenhouse gases. This paper explores the role of modeling in the analysis of technology deployment in addressing climate change. It examines the competition among technologies in a variety of markets, and explores conditions under which new markets, such as for hydrogen and carbon disposal, or modern commercial biomass, could emerge. Carbon capture and disposal technologies are shown to have the potential to play a central role in controlling the cost of stabilizing the concentration of greenhouse gases, the goal of the UN Framework Convention on Climate Change. JF - Energy (Oxford) AU - Edmonds, JA AU - Clarke, J AU - Dooley, J AU - Kim, SH AU - Smith, S J AD - Joint Global Change Research Institute, Pacific Northwest National Laboratory, 8400 Baltimore Avenue, College Park, MD 20740, USA, jae@pnl.gov Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 1529 EP - 1536 PB - Pergamon Press Ltd VL - 29 IS - 9-10 SN - 0360-5442, 0360-5442 KW - Pollution Abstracts; Sustainability Science Abstracts KW - Climatic changes KW - Hydrogen KW - Greenhouse gases KW - Biomass KW - Technology KW - competition KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20432033?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+%28Oxford%29&rft.atitle=Modeling+greenhouse+gas+energy+technology+responses+to+climate+change&rft.au=Edmonds%2C+JA%3BClarke%2C+J%3BDooley%2C+J%3BKim%2C+SH%3BSmith%2C+S+J&rft.aulast=Edmonds&rft.aufirst=JA&rft.date=2004-07-01&rft.volume=29&rft.issue=9-10&rft.spage=1529&rft.isbn=&rft.btitle=&rft.title=Energy+%28Oxford%29&rft.issn=03605442&rft_id=info:doi/10.1016%2Fj.energy.2004.03.057 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-02-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Climatic changes; Hydrogen; Biomass; Greenhouse gases; competition; Technology DO - http://dx.doi.org/10.1016/j.energy.2004.03.057 ER - TY - JOUR T1 - Carbon management strategies for US electricity generation capacity: A vintage-based approach AN - 20430909; 5924307 AB - Utilities are under increasing pressure to reduce power plant CO sub(2) emissions. If the US and world follow through on their long-term commitment to dramatically reduce emissions, this pressure will become significant over the coming decades. It is in the face of these concerns that the future of US fossil-fired power plants is examined. There are over 1337 operational fossil- fired power generating units of at least 100 MW in capacity that began operating between the early 1940s and today in the continental US. Together these units provide some 453 GW of electric power. Rapidly retiring this still valuable capital stock or undertaking large-scale immediate redevelopment with advanced power cycles as a means of addressing their greenhouse gas emissions will not be a sensible option for all of these units. Considering a conservative 40-year operating life, there are over 667 existing fossil-fired power plants, representing a capacity of over 291 GW, that have at least a decade's worth of productive life remaining. Applying Battelle's specialized analysis tools, relationships between these 667 plants and their technology type, location, emissions, and vintage have been explored. Based on these factors and the proximity of these plants to geologic reservoirs with potential for sequestering large volumes of CO sub(2), the average costs for retrofitting these newer-vintage plants with capture technology and sequestering their CO sub(2) into such reservoirs are presented. A discussion of a set of planned US fossil-fired power projects within the context of a carbon-constrained world is also included. JF - Energy (Oxford) AU - Dahowski, R T AU - Dooley, J J AD - Energy Science and Technology Directorate, Battelle; Pacific Northwest National Laboratory, P.O. Box 999, K6-10, Richland, WA 99352, USA, bob.dahowski@pnl.gov Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 1589 EP - 1598 PB - Pergamon Press Ltd VL - 29 IS - 9-10 SN - 0360-5442, 0360-5442 KW - Pollution Abstracts; Sustainability Science Abstracts KW - USA KW - Electric power generation KW - Emissions KW - Power plants KW - Geology KW - Carbon dioxide KW - Greenhouse gases KW - Reservoirs KW - Utilities KW - Technology KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20430909?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+%28Oxford%29&rft.atitle=Carbon+management+strategies+for+US+electricity+generation+capacity%3A+A+vintage-based+approach&rft.au=Dahowski%2C+R+T%3BDooley%2C+J+J&rft.aulast=Dahowski&rft.aufirst=R&rft.date=2004-07-01&rft.volume=29&rft.issue=9-10&rft.spage=1589&rft.isbn=&rft.btitle=&rft.title=Energy+%28Oxford%29&rft.issn=03605442&rft_id=info:doi/10.1016%2Fj.energy.2004.03.061 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-02-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Electric power generation; Power plants; Emissions; Geology; Greenhouse gases; Carbon dioxide; Reservoirs; Utilities; Technology; USA DO - http://dx.doi.org/10.1016/j.energy.2004.03.061 ER - TY - JOUR T1 - Geomicrobiology of High-Level Nuclear Waste-Contaminated Vadose Sediments at the Hanford Site, Washington State AN - 19770420; 5963414 AB - Sediments from a high-level nuclear waste plume were collected as part of investigations to evaluate the potential fate and migration of contaminants in the subsurface. The plume originated from a leak that occurred in 1962 from a waste tank consisting of high concentrations of alkali, nitrate, aluminate, Cr(VI), super(137)Cs, and super(99)Tc. Investigations were initiated to determine the distribution of viable microorganisms in the vadose sediment samples, probe the phylogeny of cultivated and uncultivated members, and evaluate the ability of the cultivated organisms to survive acute doses of ionizing radiation. The populations of viable aerobic heterotrophic bacteria were generally low, from below detection to [approx]10 super(4) CFU g super(-1), but viable microorganisms were recovered from 11 of 16 samples, including several of the most radioactive ones (e.g., >10 kCi of super(137)Cs/g). The isolates from the contaminated sediments and clone libraries from sediment DNA extracts were dominated by members related to known gram-positive bacteria. Gram-positive bacteria most closely related to Arthrobacter species were the most common isolates among all samples, but other phyla high in G+C content were also represented, including Rhodococcus and NOCARDIA: Two isolates from the second-most radioactive sample (>20 kCi of super(137)Cs g super(-1)) were closely related to Deinococcus radiodurans and were able to survive acute doses of ionizing radiation approaching 20 kGy. Many of the gram-positive isolates were resistant to lower levels of gamma radiation. These results demonstrate that gram-positive bacteria, predominantly from phyla high in G+C content, are indigenous to Hanford vadose sediments and that some are effective at surviving the extreme physical and chemical stress associated with radioactive waste. JF - Applied and Environmental Microbiology AU - Fredrickson, James K AU - Zachara, John M AU - Balkwill, David L AU - Kennedy, David AU - Li, Shu-Mei W AU - Kostandarithes, Heather M AU - Daly, Michael J AU - Romine, Margaret F AU - Brockman, Fred J AD - Pacific Northwest National Laboratory, Richland, Washington Y1 - 2004/07// PY - 2004 DA - July 2004 SP - 4230 EP - 4241 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA, [URL:http://www.asm.org/] VL - 70 IS - 7 SN - 0099-2240, 0099-2240 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Water Resources Abstracts KW - aerobic microorganisms KW - Gram-positive bacteria KW - Vadose zone KW - Migration KW - Rhodococcus KW - USA, Washington KW - Population genetics KW - Radiation KW - Sediment Contamination KW - Alkalis KW - Phylogeny KW - Radioactive Wastes KW - Leakage KW - Radioactive wastes KW - Wastes KW - Stress KW - g Radiation KW - Ionizing radiation KW - USA, Washington, Hanford KW - Microbiology KW - Microorganisms KW - Contaminants KW - Nitrate KW - Probes KW - Cesium Radioisotopes KW - Storage tanks KW - Nocardia KW - Arthrobacter KW - Plumes KW - Bacteria KW - Sediment pollution KW - Caesium 137 KW - Sediments KW - USA, Washington, Hanford Site KW - Nuclear power plants KW - Colony-forming cells KW - DNA KW - Migrations KW - Heterotrophic bacteria KW - Deinococcus radiodurans KW - P 8000:RADIATION KW - SW 3020:Sources and fate of pollution KW - A 01016:Microbial degradation KW - J 02420:Plant Diseases KW - Q5 08502:Methods and instruments KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19770420?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Geomicrobiology+of+High-Level+Nuclear+Waste-Contaminated+Vadose+Sediments+at+the+Hanford+Site%2C+Washington+State&rft.au=Fredrickson%2C+James+K%3BZachara%2C+John+M%3BBalkwill%2C+David+L%3BKennedy%2C+David%3BLi%2C+Shu-Mei+W%3BKostandarithes%2C+Heather+M%3BDaly%2C+Michael+J%3BRomine%2C+Margaret+F%3BBrockman%2C+Fred+J&rft.aulast=Fredrickson&rft.aufirst=James&rft.date=2004-07-01&rft.volume=70&rft.issue=7&rft.spage=4230&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-09-01 N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Population genetics; Sediment pollution; Ionizing radiation; Microbiology; Caesium 137; Migrations; Wastes; Microorganisms; Radioactive wastes; Phylogeny; Nitrate; aerobic microorganisms; Gram-positive bacteria; Probes; Stress; Migration; Sediments; Nuclear power plants; g Radiation; Colony-forming cells; DNA; Heterotrophic bacteria; Contaminants; Alkalis; Plumes; Storage tanks; Leakage; Vadose zone; Radioactive Wastes; Bacteria; Radiation; Sediment Contamination; Cesium Radioisotopes; Arthrobacter; Rhodococcus; Deinococcus radiodurans; Nocardia; USA, Washington; USA, Washington, Hanford; USA, Washington, Hanford Site ER - TY - JOUR T1 - Interactions in the tumor-promoting activity of carbon tetrachloride, trichloroacetate, and dichloroacetate in the liver of male B6C3F1 mice AN - 17985392; 5913457 AB - Interactions between carcinogens in mixtures found in the environment have been a concern for several decades. In the present study, male B6C3F1 mice were used to study the responses to mixtures of dichloroacetate (DCA), trichloroacetate (TCA), and carbon tetrachloride (CT). TCA produces liver tumors in mice with the phenotypic characteristics common to peroxisome proliferators. DCA increases the growth of liver tumors with a phenotype that is distinct in several respects from those produced by TCA. These chemicals are effective as carcinogens at doses that do not produce cytotoxicity. Thus, they encourage clonal expansion of initiated cells through subtle, selective mechanisms. CT is well known for its ability to promote the growth of liver tumors through cytotoxicity that produces a generalized growth stimulus in the liver that is reflected in a reparative hyperplasia. Thus, CT is relatively non-specific in its promotion of initiated cells within the liver. The objective of this study was to determine how the differing modes of action of these chemicals might interact when given as mixed exposures. The hypothesis was that the effects of two selective promoters would not be more than additive. On the other hand, CT would be selective only to cells not sensitive to its effects as a cytotoxin. Thus, it was hypothesized that neither DCA nor TCA would add significantly to the effects produced by CT. Mice were initiated by vinyl carbamate (VC), and then promoted by DCA, TCA, CT, or the pair-wised combinations of the three compounds. The ability of TCA to significantly increase tumor numbers in CT-treated mice was probably real and contrary to our original hypothesis that CT was non-specific in its effects on initiated cells. It is probable that the interaction between CT and TCA is explained through stimulation of the growth of cells with differing phenotypes. These data suggest that the outcome of interactions between the mechanisms of tumor promotion vary based on the characteristics of the initiated cells. The interactions may result in additive or inhibitory effects, but no significant evidence of synergy was observed. JF - Toxicology AU - Bull, R J AU - Sasser, L B AU - Lei, X C AD - Molecular Biosciences, Pacific Northwest National Laboratory, Richland, WA 99352, USA, rjbull@earthlink.net Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 169 EP - 183 PB - Elsevier Science Ireland Ltd., P.O. Box 85 Limerick Ireland VL - 199 IS - 2-3 SN - 0300-483X, 0300-483X KW - mice KW - males KW - Toxicology Abstracts KW - Carbon tetrachloride KW - Liver KW - Dichloroacetic acid KW - Tumor-promoting agents KW - Tumors KW - Trichloroacetic acid KW - X 24152:Chronic exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17985392?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology&rft.atitle=Interactions+in+the+tumor-promoting+activity+of+carbon+tetrachloride%2C+trichloroacetate%2C+and+dichloroacetate+in+the+liver+of+male+B6C3F1+mice&rft.au=Bull%2C+R+J%3BSasser%2C+L+B%3BLei%2C+X+C&rft.aulast=Bull&rft.aufirst=R&rft.date=2004-07-01&rft.volume=199&rft.issue=2-3&rft.spage=169&rft.isbn=&rft.btitle=&rft.title=Toxicology&rft.issn=0300483X&rft_id=info:doi/10.1016%2Fj.tox.2004.02.018 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Tumors; Tumor-promoting agents; Carbon tetrachloride; Trichloroacetic acid; Dichloroacetic acid; Liver DO - http://dx.doi.org/10.1016/j.tox.2004.02.018 ER - TY - JOUR T1 - Comparative analysis of eukaryotic-type protein phosphatases in two streptomycete genomes AN - 17739189; 6027284 AB - Inspection of the genomes of Streptomyces coelicolor A3 (2) and Streptomyces avermitilis reveals that each contains 55 putative eukaryotic-type protein phosphatases (PPs), the largest number ever identified from any single prokaryotic organism. Unlike most other prokaryotic genomes that have only one or two superfamilies of eukaryotic-type PPs, the streptomycete genomes possess the eukaryotic-type PPs that belong to four superfamilies: 2 phosphoprotein phosphatases and 2 low-molecular-mass protein tyrosine phosphatases in each species, 49 Mg super(2+)- or Mn super(2+)-dependent protein phosphatases (PPMs) and 2 conventional protein tyrosine phosphatases (CPTPs) in S. coelicolor A3(2), and 48 PPMs and 3 CPTPs in S. avermitilis. Sixty-four percent of the PPs found in S. coelicolor A3(2) have orthologues in S. avermitilis, indicating that they originated from a common ancestor and might be involved in the regulation of more conserved metabolic activities. The genes of eukaryotic-type PP unique to each surveyed streptomycete genome are mainly located in two arms of the linear chromosomes and their evolution might be involved in gene acquisition or duplication to adapt to the extremely variable soil environments where these organisms live. In addition, 56% of the PPs from S. coelicolor A3 (2) and 65% of the PPs from S. avermitilis possess at least one additional domain having a putative biological function. These include the domains involved in the detection of redox potential, the binding of cyclic nucleotides, mRNA, DNA and ATP, and the catalysis of phosphorylation reactions. Because they contained multiple functional domains, most of them were assigned functions other than PPs in previous annotations. Although few studies have been conducted on the physiological functions of the PPs in streptomycetes, the existence of large numbers of putative PPs in these two streptomycete genomes strongly suggests that eukaryotictype PPs play important regulatory roles in primary or secondary metabolic pathways. The identification and analysis of such a large number of putative eukaryotic-type PPs from S. coelicolor A3(2) and S. avermitilis constitute a basis for further exploration of the signal transduction pathways mediated by these phosphatases in industrially important strains of streptomycetes. JF - Microbiology AU - Shi, L AU - Zhang, W AD - Microbiology Group, Pacific Northwest National Laboratory, 902 Battelle Blvd, PO Box 999, MSIN: P7-50, Richland, WA 99352, USA, Liang.Shi@pnl.gov Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 2247 EP - 2256 VL - 150 IS - 7 SN - 1350-0872, 1350-0872 KW - Microbiology Abstracts B: Bacteriology KW - Phosphoprotein phosphatase KW - Cyclic nucleotides KW - ATP KW - Streptomyces coelicolor KW - Streptomyces avermitilis KW - mRNA KW - Protein-tyrosine-phosphatase KW - Chromosomes KW - Phosphorylation KW - Metabolic pathways KW - DNA KW - protein phosphatase KW - Evolution KW - Catalysis KW - Signal transduction KW - Redox potential KW - J 02740:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17739189?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Microbiology&rft.atitle=Comparative+analysis+of+eukaryotic-type+protein+phosphatases+in+two+streptomycete+genomes&rft.au=Shi%2C+L%3BZhang%2C+W&rft.aulast=Shi&rft.aufirst=L&rft.date=2004-07-01&rft.volume=150&rft.issue=7&rft.spage=2247&rft.isbn=&rft.btitle=&rft.title=Microbiology&rft.issn=13500872&rft_id=info:doi/10.1099%2Fmic.0.27057-0 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - ATP; Cyclic nucleotides; Phosphoprotein phosphatase; Protein-tyrosine-phosphatase; mRNA; Chromosomes; Phosphorylation; DNA; Metabolic pathways; protein phosphatase; Evolution; Redox potential; Signal transduction; Catalysis; Streptomyces coelicolor; Streptomyces avermitilis DO - http://dx.doi.org/10.1099/mic.0.27057-0 ER - TY - JOUR T1 - Transport-controlled kinetics of dissolution and precipitation in the sediments under alkaline and saline conditions AN - 17295117; 5970508 AB - Over 1.6 million liters of radioactive, high-temperature, Al-rich, alkaline and saline high-level waste (HLW) fluids were accidentally discharged from tank leaks onto the sediments at the Hanford Site, Washington. In order to better understand processes that might occur during the migration of HLW through sediments and to estimate their extents, we studied the effects of Al-rich, alkaline and saline solutions on soil mineral dissolution and precipitation during reactive transport. Metal- and glass-free systems were used to conduct miscible-displacement experiments at 50 C under CO sub(2) and O sub(2) free conditions. Results showed significant release of Si, K, Al, Fe, Ca, Mg, and Ba into the aqueous phase. The transport-controlled release of these elements was time dependent as evidenced by its extent varying with the fluid residence time. Silica initial dissolution rates (6.08 x 10 super(-11) and 5.38 x 10 super(-13) mol m super(-2) s super(-1)) increased with base concentration, decreased with Al concentration, and decreased with fluid residence time. Aluminum precipitation rates varied in the range from 0.44 to 1.07 x 10 super(-6) mol s super(-1) and were faster in these column experiments than in previous batch studies. The initial rate constant of Al precipitation reaction was 0.07 h super(-1) (half-life of 9.9 h at about 3 PV); it increased up to 0.137 h super(-1) (half-life of 5.1 h at about 20 PV). The precipitates identified with SEM and suggested from the modeling results were mainly NO sub(3)-cancrinite. SEM analyses also indicated the formation of sodalite when Al was not present in the leaching solution. In addition, results from modeling suggested the precipitation of brucite, goethite and gibbsite; the latter may precipitate in the presence of high Al concentrations. Aqueous and solid phase transformations caused by base-induced dissolution and subsequent secondary phases precipitation should be important determinants of the fate of contaminants and radionuclides in the vadose zone under alkaline and saline conditions. JF - Geochimica et Cosmochimica Acta AU - Qafoku, N P AU - Ainsworth, C C AU - Szecsody, JE AU - Qafoku, O S AD - Pacific Northwest National Laboratory, Richland, Washington 99352, USA, nik.qafoku@pnl.gov Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 2981 EP - 2995 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl] VL - 68 IS - 14 SN - 0016-7037, 0016-7037 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Residence time KW - Rainfall KW - Radioactive Half-life KW - Migration KW - Vadose zone KW - Goethite KW - USA, Washington KW - Salinity KW - Storage tanks KW - Alkalinity KW - Chemical Precipitation KW - Sediment Contamination KW - Vadose Water KW - Sediment pollution KW - Leakage KW - Leaching KW - Geochemistry KW - Wastes KW - Radioactive pollution KW - Solids KW - Precipitation KW - Sediments KW - USA, Washington, Hanford Site KW - Model Studies KW - Brucite KW - Kinetics KW - Gibbsite KW - Aluminum KW - Aluminium KW - Radioisotopes KW - Carbon dioxide KW - Minerals KW - Precipitation Rate KW - Carbon Dioxide KW - AQ 00001:Water Resources and Supplies KW - Q5 08503:Characteristics, behavior and fate KW - Q2 09283:Soil mechanics KW - P 8000:RADIATION KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17295117?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Transport-controlled+kinetics+of+dissolution+and+precipitation+in+the+sediments+under+alkaline+and+saline+conditions&rft.au=Qafoku%2C+N+P%3BAinsworth%2C+C+C%3BSzecsody%2C+JE%3BQafoku%2C+O+S&rft.aulast=Qafoku&rft.aufirst=N&rft.date=2004-07-01&rft.volume=68&rft.issue=14&rft.spage=2981&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2003.12.017 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-03-01 N1 - Last updated - 2015-08-19 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Brucite; Leaching; Residence time; Gibbsite; Aluminium; Wastes; Carbon dioxide; Goethite; Salinity; Leakage; Storage tanks; Rainfall; Kinetics; Alkalinity; Geochemistry; Radioactive pollution; Vadose zone; Minerals; Aluminum; Radioisotopes; Solids; Radioactive Half-life; Precipitation; Vadose Water; Sediments; Carbon Dioxide; Model Studies; Chemical Precipitation; Sediment Contamination; Migration; Precipitation Rate; USA, Washington; USA, Washington, Hanford Site DO - http://dx.doi.org/10.1016/j.gca.2003.12.017 ER - TY - JOUR T1 - Yeast display of antibody fragments: a discovery and characterization platform AN - 17275575; 6045670 AB - Yeast display of antibody fragments has proven to be an efficient and productive means for directed evolution of single-chain Fv (scFv) antibodies for increased affinity and thermal stability and, more recently, for the display and screening of a non-immune scFv and immune Fab libraries. A major strength of yeast display as a novel antibody discovery platform is the ability to characterize the binding properties, i.e., the affinity and epitope binding characteristics, of a clone without the need for subcloning, expression and purification of the scFv. This review focuses on novel attributes of yeast display for antibody engineering endeavors. JF - Journal of Immunological Methods AU - Feldhaus, MJ AU - Siegel, R W AD - Pacific Northwest National Laboratory, MSIN:K4-12, 902 Battelle Boulevard, P.O. Box 999, Richland, WA 99352, USA, michael.feldhaus@pnl.gov Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 69 EP - 80 PB - Elsevier B.V. VL - 290 IS - 1-2 SN - 0022-1759, 0022-1759 KW - Biotechnology and Bioengineering Abstracts; Immunology Abstracts; Medical and Pharmaceutical Biotechnology Abstracts KW - Yeasts KW - Antibodies KW - Fab KW - Fv KW - W3 33375:Antibodies KW - F 06711:Monoclonal antibodies, hybridomas, antigens and antisera KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17275575?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Immunological+Methods&rft.atitle=Yeast+display+of+antibody+fragments%3A+a+discovery+and+characterization+platform&rft.au=Feldhaus%2C+MJ%3BSiegel%2C+R+W&rft.aulast=Feldhaus&rft.aufirst=MJ&rft.date=2004-07-01&rft.volume=290&rft.issue=1-2&rft.spage=69&rft.isbn=&rft.btitle=&rft.title=Journal+of+Immunological+Methods&rft.issn=00221759&rft_id=info:doi/10.1016%2Fj.jim.2004.04.009 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Antibodies; Yeasts; Fab; Fv DO - http://dx.doi.org/10.1016/j.jim.2004.04.009 ER - TY - JOUR T1 - Calmodulin involvement in stress-activated nuclear localization of albumin in JB6 epithelial cells. AN - 72000344; 15182187 AB - We report that albumin is translocated to the nucleus in response to oxidative stress. Prior measurements have demonstrated that in concert with known transcription factors albumin binds to an antioxidant response element, which controls the expression of glutathione S-transferase and other antioxidant enzymes that function to mediate adaptive cellular responses [Holderman, M. T., Miller, K. P., Dangott, L. J., and Ramos, K. S. (2002) Mol. Pharmacol. 61, 1174-1183]. To investigate the mechanisms underlying this adaptive cell response, we have identified linkages between calcium signaling and the nuclear translocation of albumin in JB6 epithelial cells. Under resting conditions, albumin and the calcium regulatory protein calmodulin (CaM) co-immunoprecipitate using antibodies against either protein, indicating a tight association. Calcium activation of CaM disrupts the association between CaM and albumin, suggesting that transient increases in cytosolic calcium levels function to mobilize intracellular albumin to facilitate its translocation into the nucleus. Likewise, nuclear translocation of albumin is induced by exposure of cells to hydrogen peroxide or a phorbol ester, indicating a functional linkage between reactive oxygen species, calcium, and PKC-signaling pathways. Inclusion of an antioxidant enzyme (i.e., superoxide dismutase) blocks nuclear translocation, suggesting that the oxidation of sensitive proteins functions to coordinate the adaptive cellular response. These results suggest that elevated calcium transients and associated increases in reactive oxygen species contribute to adaptive cellular responses through the mobilization and nuclear translocation of cellular albumin. JF - Biochemistry AU - Weber, Thomas J AU - Negash, Sewite AU - Smallwood, Heather S AU - Ramos, Kenneth S AU - Thrall, Brian D AU - Squier, Thomas C AD - Cell Biology Group, Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, USA. thomas.weber@pnl.gov Y1 - 2004/06/15/ PY - 2004 DA - 2004 Jun 15 SP - 7443 EP - 7450 VL - 43 IS - 23 SN - 0006-2960, 0006-2960 KW - Albumins KW - 0 KW - Calmodulin KW - Phorbol 12,13-Dibutyrate KW - 37558-16-0 KW - Superoxide Dismutase KW - EC 1.15.1.1 KW - Calcium KW - SY7Q814VUP KW - Index Medicus KW - Calcium -- metabolism KW - Animals KW - Superoxide Dismutase -- metabolism KW - Mice KW - Calcium -- pharmacology KW - Protein Binding KW - Cell Line KW - Protein Transport KW - Phorbol 12,13-Dibutyrate -- pharmacology KW - Epithelial Cells -- metabolism KW - Calmodulin -- metabolism KW - Albumins -- metabolism KW - Cell Nucleus -- metabolism KW - Oxidative Stress UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72000344?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry&rft.atitle=Calmodulin+involvement+in+stress-activated+nuclear+localization+of+albumin+in+JB6+epithelial+cells.&rft.au=Weber%2C+Thomas+J%3BNegash%2C+Sewite%3BSmallwood%2C+Heather+S%3BRamos%2C+Kenneth+S%3BThrall%2C+Brian+D%3BSquier%2C+Thomas+C&rft.aulast=Weber&rft.aufirst=Thomas&rft.date=2004-06-15&rft.volume=43&rft.issue=23&rft.spage=7443&rft.isbn=&rft.btitle=&rft.title=Biochemistry&rft.issn=00062960&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-08-30 N1 - Date created - 2004-06-08 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Dosimetry model for radioactivity localized to intestinal mucosa. AN - 66762910; 15285876 AB - BACKGROUNDThis paper provides a new model for calculating radiation-absorbed doses to the full thickness of the small and large intestinal walls, and to the mucosal layers. The model was used to estimate the intestinal radiation doses from yttrium-90-labeled-DOTA-biotin binding to NR-LU-10-streptavidin in patients.METHODSWe selected model parameters from published data and observations, and used the model to calculate energy-absorbed fractions using the EGS4 radiation transport code. We determined the cumulated (90)Y activity in the small and large intestines of patients from gamma camera images, and calculated absorbed doses to the mucosal layer and to the whole intestinal wall.RESULTSThe mean absorbed dose to the wall of the small intestine was 16.2 mGy/MBq (60 cGy/mCi) administered from (90)Y localized in the mucosa, and 70 mGy/MBq (260 cGy/mCi) to the mucosal layer within the wall. Doses to the large intestinal wall and to the mucosa of the large intestine were lower than those for the small intestine by a factor of about 2.5. These doses are greater by factors of about 5 to 6 than those that would have been calculated using the standard MIRD models that assume the intestinal activity is in the bowel contents.CONCLUSIONSThe specific uptake of radiopharmaceuticals in mucosal tissues may lead to dose-related intestinal toxicities. Tissue dosimetry at the sub-organ level is useful for a better understanding of intestinal tract radiotoxicity and associated dose-response relationships. JF - Cancer biotherapy & radiopharmaceuticals AU - Fisher, Darrell AU - Rajon, Didier AU - Breitz, Hazel AU - Goris, Michael AU - Bolch, Wesley AU - Knox, Susan AD - Pacific Northwest National Laboratory, 902 Battelle Boulevard P7-27, Richland, WA 99352, USA. dr.fisher@pnl.gov Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 293 EP - 307 VL - 19 IS - 3 SN - 1084-9785, 1084-9785 KW - Index Medicus KW - Radiation Dosage KW - Humans KW - Radiography KW - Monte Carlo Method KW - Intestinal Mucosa -- radiation effects KW - Intestinal Mucosa -- diagnostic imaging KW - Models, Biological KW - Intestinal Mucosa -- anatomy & histology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66762910?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Cancer+biotherapy+%26+radiopharmaceuticals&rft.atitle=Dosimetry+model+for+radioactivity+localized+to+intestinal+mucosa.&rft.au=Fisher%2C+Darrell%3BRajon%2C+Didier%3BBreitz%2C+Hazel%3BGoris%2C+Michael%3BBolch%2C+Wesley%3BKnox%2C+Susan&rft.aulast=Fisher&rft.aufirst=Darrell&rft.date=2004-06-01&rft.volume=19&rft.issue=3&rft.spage=293&rft.isbn=&rft.btitle=&rft.title=Cancer+biotherapy+%26+radiopharmaceuticals&rft.issn=10849785&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-01-11 N1 - Date created - 2004-08-02 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Identifying the sources of subsurface contamination at the Handford Site in Washington using high-precision uranium isotopic measurements AN - 51797149; 2004-074366 JF - Environmental Science & Technology, ES & T AU - Christensen, John N AU - Dresel, P Evan AU - Conrad, Mark E AU - Maher, Kate AU - DePaolo, Donald J Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 3330 EP - 3337 PB - American Chemical Society, Washington, DC VL - 38 IS - 12 SN - 0013-936X, 0013-936X KW - United States KW - hazardous waste KW - lithostratigraphy KW - Cold Creek KW - volcanic rocks KW - contaminant plumes KW - isotopes KW - igneous rocks KW - unsaturated zone KW - mass spectra KW - environmental analysis KW - ground water KW - Cenozoic KW - radioactive isotopes KW - movement KW - basalts KW - sediments KW - Pasco Basin KW - spectra KW - soils KW - hydrology KW - bedrock KW - high-resolution methods KW - Washington KW - isotope ratios KW - Columbia River Basalt Group KW - pollution KW - Hanford Site KW - Ringold Formation KW - Miocene KW - measurement KW - ICP mass spectra KW - Tertiary KW - boreholes KW - Neogene KW - metals KW - U-234 KW - Pliocene KW - uranium KW - U-238/U-234 KW - waste disposal KW - actinides KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51797149?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Identifying+the+sources+of+subsurface+contamination+at+the+Handford+Site+in+Washington+using+high-precision+uranium+isotopic+measurements&rft.au=Christensen%2C+John+N%3BDresel%2C+P+Evan%3BConrad%2C+Mark+E%3BMaher%2C+Kate%3BDePaolo%2C+Donald+J&rft.aulast=Christensen&rft.aufirst=John&rft.date=2004-06-01&rft.volume=38&rft.issue=12&rft.spage=3330&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 30 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - actinides; basalts; bedrock; boreholes; Cenozoic; Cold Creek; Columbia River Basalt Group; contaminant plumes; environmental analysis; ground water; Hanford Site; hazardous waste; high-resolution methods; hydrology; ICP mass spectra; igneous rocks; isotope ratios; isotopes; lithostratigraphy; mass spectra; measurement; metals; Miocene; movement; Neogene; Pasco Basin; Pliocene; pollution; radioactive isotopes; Ringold Formation; sediments; soils; spectra; Tertiary; U-234; U-238/U-234; United States; unsaturated zone; uranium; volcanic rocks; Washington; waste disposal ER - TY - JOUR T1 - Copper sorption mechanisms on smectites AN - 51763074; 2005-008200 AB - To provide a basis for development of adsorption models it is critical that molecular-level studies be done to characterize sorption processes. This study uses X-ray absorption fine structure (XAFS) and e.p.r. spectroscopic experiments on copper (II) sorbed on smectite clays using suspension pH and ionic strength as variables. At low ionic strength, results suggest that Cu is sorbing in the interlayers and maintains its hydration sphere. At high ionic strength, Cu atoms are excluded from the interlayer and sorb primarily on the silanol and aluminol functional groups of the montmorillonite or beidellite structures. Interpretation of the XAFS and e.p.r. spectroscopy results provides evidence that multinuclear complexes are forming. Fitting of extended X-ray absorption fine structure spectra revealed that the Cu-Cu atoms in the multinuclear complexes are 2.65 Aa apart, and have coordination numbers near one. This structural information suggests that small Cu dimers are sorbing on the surface. These complexes are consistent with observed sorption on mica and amorphous silicon dioxide, yet are inconsistent with previous spectroscopic results for Cu sorption on montmorillonite. The results reported in this paper provide mechanistic data that will be useful for the modelling of surface interactions of Cu with clay minerals, and predicting the geochemical cycling of Cu in the environment. JF - Clays and Clay Minerals AU - Strawn, Daniel G AU - Palmer, Noel E AU - Furnare, Luca J AU - Goodell, Carmen AU - Amonette, James E AU - Kukkadapu, Ravi K Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 321 EP - 333 PB - Clay Minerals Society, Clarkson, NY VL - 52 IS - 3 SN - 0009-8604, 0009-8604 KW - silicates KW - sorption KW - copper KW - clay mineralogy KW - XAFS spectra KW - smectite KW - adsorption KW - X-ray spectra KW - clay minerals KW - metals KW - chemical properties KW - sheet silicates KW - spectra KW - geochemistry KW - EPR spectra KW - montmorillonite KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51763074?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Clays+and+Clay+Minerals&rft.atitle=Copper+sorption+mechanisms+on+smectites&rft.au=Strawn%2C+Daniel+G%3BPalmer%2C+Noel+E%3BFurnare%2C+Luca+J%3BGoodell%2C+Carmen%3BAmonette%2C+James+E%3BKukkadapu%2C+Ravi+K&rft.aulast=Strawn&rft.aufirst=Daniel&rft.date=2004-06-01&rft.volume=52&rft.issue=3&rft.spage=321&rft.isbn=&rft.btitle=&rft.title=Clays+and+Clay+Minerals&rft.issn=00098604&rft_id=info:doi/10.1346%2FCCMN.2004.0520307 L2 - http://www.ingentaconnect.com/content/cms/ccm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 2005-01-01 N1 - Number of references - 47 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - adsorption; chemical properties; clay mineralogy; clay minerals; copper; EPR spectra; geochemistry; metals; montmorillonite; sheet silicates; silicates; smectite; sorption; spectra; X-ray spectra; XAFS spectra DO - http://dx.doi.org/10.1346/CCMN.2004.0520307 ER - TY - JOUR T1 - Heterogeneous reduction of uranyl by micas; crystal chemical and solution controls AN - 51747138; 2005-018629 AB - This contribution primarily uses X-ray photoelectron spectroscopy (XPS) to better understand mechanisms for coupled sorption-reduction of aqueous U (super VI) by ferrous micas. Additional information was obtained with X-ray absorption spectroscopy (XAS) and transmission electron microscopy (TEM). The research is important because homogeneous reduction of aqueous U (super VI) is sluggish compared to heterogeneous reduction pathways, and micas are important sorbents for uranium in granitic terrains, which have been proposed as potential radionuclide waste disposal sites. Three micas (high, medium and low Fe/Mg biotites), prepared as thin centimeter-sized books, were reacted with U (super VI) solutions that contained 0-25 mM Na (super +) or K (super +) , at pH = 4.5, 5.0, 6.0, and 9.5. All the experiments were performed under argon at one bar. Solid samples were retrieved at timed intervals for up to 20 h. Both mica edge and basal plane orientations were analyzed by XPS. Analyses of peak positions, core satellites, and the 5f valence band indicate that U (super VI) can be reduced by biotite and that heterogeneous reduction depends on the type and concentration of alkali cation in solution, crystallography, and mica composition. We conclude that ferrous micas can reduce U (super VI) on edge sites, but not on exposed basal plane surfaces, and that Na (super +) and K (super +) facilitate and hinder the reaction, respectively. These observations pertain over a broad range of pH.X-Ray absorption near edge spectroscopy (XANES) of annite sections indicates that the interlayer region, as opposed to external basal surfaces, also offers possible sites for heterogeneous reduction of U (super VI) . TEM of annites with high uranium coverage confirmed the presence of interlayer uranium; interestingly, this uranium is concentrated in U-rich nano-scale zones. JF - Geochimica et Cosmochimica Acta AU - Ilton, Eugene S AU - Haiduc, Anca AU - Moses, Carl O AU - Heald, Steve M AU - Elbert, David C AU - Veblen, David R Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 2417 EP - 2435 PB - Pergamon, Oxford VL - 68 IS - 11 SN - 0016-7037, 0016-7037 KW - silicates KW - sorption KW - iron KW - radioactive waste KW - XANES spectra KW - chemical reactions KW - mica group KW - applications KW - spectra KW - reduction KW - X-ray photoelectron spectra KW - heterogeneity KW - geochemistry KW - experimental studies KW - annite KW - uranyl ion KW - mineral-water interface KW - X-ray spectra KW - TEM data KW - metals KW - biotite KW - sheet silicates KW - uranium KW - waste disposal KW - crystal chemistry KW - actinides KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51747138?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Heterogeneous+reduction+of+uranyl+by+micas%3B+crystal+chemical+and+solution+controls&rft.au=Ilton%2C+Eugene+S%3BHaiduc%2C+Anca%3BMoses%2C+Carl+O%3BHeald%2C+Steve+M%3BElbert%2C+David+C%3BVeblen%2C+David+R&rft.aulast=Ilton&rft.aufirst=Eugene&rft.date=2004-06-01&rft.volume=68&rft.issue=11&rft.spage=2417&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2003.08.010 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 84 N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Includes appendix N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; annite; applications; biotite; chemical reactions; crystal chemistry; experimental studies; geochemistry; heterogeneity; iron; metals; mica group; mineral-water interface; radioactive waste; reduction; sheet silicates; silicates; sorption; spectra; TEM data; uranium; uranyl ion; waste disposal; X-ray photoelectron spectra; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1016/j.gca.2003.08.010 ER - TY - JOUR T1 - Reduction of uranium(VI) under sulfate-reducing conditions in the presence of Fe(III)-(hydr)oxides AN - 51730021; 2005-028223 AB - Hexavalent uranium [U(VI)] dissolved in a modified lactate-C medium was treated under anoxic conditions with a mixture of an Fe(III)-(hydr)oxide mineral (hematite, goethite, or ferrihydrite) and quartz. The mass of Fe(III)-(hydr)oxide mineral was varied to give equivalent Fe(III)-mineral surface areas. After equilibration, the U(VI)-mineral suspensions were inoculated with sulfate-reducing bacteria, Desulfovibrio desulfuricans G20. Inoculation of the suspensions containing sulfate-limited medium yielded significant G20 growth, along with concomitant reduction of sulfate and U(VI) from solution. With lactate-limited medium, however, some of the uranium that had been removed from solution was resolubilized in the hematite treatments and, to a lesser extent, in the goethite treatments, once the lactate was depleted. No resolubilization was observed in the lactate-limited ferrihydrite treatment even after a prolonged incubation of 4 months. Uranium resolubilization was attributed to reoxidation of the uraninite by Fe(III) present in the (hydr)oxide phases. Analysis by U L (sub 3) -edge XANES spectroscopy of mineral specimens sampled at the end of the experiments yielded spectra similar to that of uraninite, but having distinct features, notably a much more intense and slightly broader white line consistent with precipitation of nanometer-sized particles. The XANES spectra thus provided strong evidence for SRB-promoted removal of U(VI) from solution by reductive precipitation of uraninite. Consequently, our results suggest that SRB mediate reduction of soluble U(VI) to an insoluble U(IV) oxide, so long as a suitable electron donor is available. Depletion of the electron donor may result in partial reoxidation of the U(IV) to soluble U(VI) species when the surfaces of crystalline Fe(III)-(hydr)oxides are incompletely reduced. JF - Geochimica et Cosmochimica Acta AU - Sani, R K AU - Peyton, B M AU - Amonette, J E AU - Geesey, G G Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 2639 EP - 2648 PB - Pergamon, Oxford VL - 68 IS - 12 SN - 0016-7037, 0016-7037 KW - iron oxides KW - goethite KW - remediation KW - XANES spectra KW - laboratory studies KW - hematite KW - oxides KW - spectra KW - reduction KW - geochemistry KW - experimental studies KW - sulfate ion KW - oxidation KW - bioremediation KW - ferrihydrite KW - X-ray spectra KW - iron hydroxides KW - hydroxides KW - biogenic processes KW - metals KW - bacteria KW - uranium KW - waste disposal KW - uraninite KW - actinides KW - 02C:Geochemistry of rocks, soils, and sediments KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51730021?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Reduction+of+uranium%28VI%29+under+sulfate-reducing+conditions+in+the+presence+of+Fe%28III%29-%28hydr%29oxides&rft.au=Sani%2C+R+K%3BPeyton%2C+B+M%3BAmonette%2C+J+E%3BGeesey%2C+G+G&rft.aulast=Sani&rft.aufirst=R&rft.date=2004-06-01&rft.volume=68&rft.issue=12&rft.spage=2639&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2004.01.005 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 69 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; bacteria; biogenic processes; bioremediation; experimental studies; ferrihydrite; geochemistry; goethite; hematite; hydroxides; iron hydroxides; iron oxides; laboratory studies; metals; oxidation; oxides; reduction; remediation; spectra; sulfate ion; uraninite; uranium; waste disposal; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1016/j.gca.2004.01.005 ER - TY - JOUR T1 - Diversity of methanotroph communities in a basalt aquifer AN - 51624253; 2006-020037 JF - FEMS Microbiology. Ecology AU - Newby, D T AU - Reed, D W AU - Petzke, L M AU - Igoe, A L AU - Delwiche, M E AU - Roberto, F F AU - McKinley, J P AU - Whiticar, M J AU - Colwell, F S Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 333 EP - 344 PB - Elsevier Science on behalf of the Federation of European Microbiological Societies, Amsterdam VL - 48 IS - 3 SN - 0168-6496, 0168-6496 KW - United States KW - Snake River Plain Aquifer KW - chlorinated hydrocarbons KW - water quality KW - volcanic rocks KW - biomass KW - igneous rocks KW - aliphatic hydrocarbons KW - ground water KW - carbon KW - basalts KW - halogenated hydrocarbons KW - Idaho KW - concentration KW - methane KW - phylogeny KW - metabolism KW - pollution KW - porous materials KW - alkanes KW - solubility KW - geochemical cycle KW - aquifers KW - organic compounds KW - RNA KW - bacteria KW - methanotrophs KW - hydrocarbons KW - DNA KW - trichloroethylene KW - carbon cycle KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51624253?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=FEMS+Microbiology.+Ecology&rft.atitle=Diversity+of+methanotroph+communities+in+a+basalt+aquifer&rft.au=Newby%2C+D+T%3BReed%2C+D+W%3BPetzke%2C+L+M%3BIgoe%2C+A+L%3BDelwiche%2C+M+E%3BRoberto%2C+F+F%3BMcKinley%2C+J+P%3BWhiticar%2C+M+J%3BColwell%2C+F+S&rft.aulast=Newby&rft.aufirst=D&rft.date=2004-06-01&rft.volume=48&rft.issue=3&rft.spage=333&rft.isbn=&rft.btitle=&rft.title=FEMS+Microbiology.+Ecology&rft.issn=01686496&rft_id=info:doi/10.1016%2Fj.femsec.2004.02.001 L2 - http://www.sciencedirect.com/science/journal/01686496 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 50 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; aquifers; bacteria; basalts; biomass; carbon; carbon cycle; chlorinated hydrocarbons; concentration; DNA; geochemical cycle; ground water; halogenated hydrocarbons; hydrocarbons; Idaho; igneous rocks; metabolism; methane; methanotrophs; microorganisms; organic compounds; phylogeny; pollution; porous materials; RNA; Snake River Plain Aquifer; solubility; trichloroethylene; United States; volcanic rocks; water quality DO - http://dx.doi.org/10.1016/j.femsec.2004.02.001 ER - TY - JOUR T1 - Three-dimensional distribution of gas hydrate beneath southern Hydrate Ridge; constraints from ODP Leg 204 AN - 51616239; 2006-023697 AB - Large uncertainties about the energy resource potential and role in global climate change of gas hydrates result from uncertainty about how much hydrate is contained in marine sediments. During Leg 204 of the Ocean Drilling Program (ODP) to the accretionary complex of the Cascadia subduction zone, we sampled the gas hydrate stability zone (GHSZ) from the seafloor to its base in contrasting geological settings defined by a 3D seismic survey. By integrating results from different methods, including several new techniques developed for Leg 204, we overcome the problem of spatial under-sampling inherent in robust methods traditionally used for estimating the hydrate content of cores and obtain a high-resolution, quantitative estimate of the total amount and spatial variability of gas hydrate in this structural system. We conclude that high gas hydrate content (30-40% of pore space or 20-26% of total volume) is restricted to the upper tens of meters below the seafloor near the summit of the structure, where vigorous fluid venting occurs. Elsewhere, the average gas hydrate content of the sediments in the gas hydrate stability zone is generally <2% of the pore space, although this estimate may increase by a factor of 2 when patchy zones of locally higher gas hydrate content are included in the calculation. These patchy zones are structurally and stratigraphically controlled, contain up to 20% hydrate in the pore space when averaged over zones approximately 10 m thick, and may occur in up to approximately 20% of the region imaged by 3D seismic data. This heterogeneous gas hydrate distribution is an important constraint on models of gas hydrate formation in marine sediments and the response of the sediments to tectonic and environmental change. JF - Earth and Planetary Science Letters AU - Trehu, Anne M AU - Long, P E AU - Torres, M E AU - Bohrmann, G AU - Rack, F R AU - Collett, T S AU - Goldberg, D S AU - Milkov, A V AU - Riedel, M AU - Schultheiss, P AU - Bangs, N L AU - Barr, S R AU - Borowski, W S AU - Claypool, G E AU - Delwiche, M E AU - Dickens, G R AU - Gracia, E AU - Guerin, G AU - Holland, M AU - Johnson, J E AU - Lee, Y J AU - Liu, C S AU - Su, X AU - Teichert, B AU - Tomaru, H AU - Vanneste, M AU - Watanabe, M AU - Weinberger, J L Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 845 EP - 862 PB - Elsevier, Amsterdam VL - 222 IS - 3-4 SN - 0012-821X, 0012-821X KW - sea water KW - Northeast Pacific KW - geophysical surveys KW - gas hydrates KW - well-logging KW - hydrothermal vents KW - aliphatic hydrocarbons KW - global change KW - fluid phase KW - climate change KW - spatial distribution KW - marine sediments KW - infrared methods KW - sampling KW - sediments KW - ocean floors KW - Leg 204 KW - chemical composition KW - geochemistry KW - climate KW - East Pacific KW - continental margin KW - seismic profiles KW - methane KW - three-dimensional models KW - geophysical methods KW - accreting plate boundary KW - Hydrate Ridge KW - alkanes KW - resistivity KW - hydrochemistry KW - seismic methods KW - models KW - organic compounds KW - North Pacific KW - Pacific Ocean KW - hydrocarbons KW - surveys KW - geophysical profiles KW - Ocean Drilling Program KW - Cascadia subduction zone KW - mid-ocean ridges KW - 02B:Hydrochemistry KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51616239?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=Three-dimensional+distribution+of+gas+hydrate+beneath+southern+Hydrate+Ridge%3B+constraints+from+ODP+Leg+204&rft.au=Trehu%2C+Anne+M%3BLong%2C+P+E%3BTorres%2C+M+E%3BBohrmann%2C+G%3BRack%2C+F+R%3BCollett%2C+T+S%3BGoldberg%2C+D+S%3BMilkov%2C+A+V%3BRiedel%2C+M%3BSchultheiss%2C+P%3BBangs%2C+N+L%3BBarr%2C+S+R%3BBorowski%2C+W+S%3BClaypool%2C+G+E%3BDelwiche%2C+M+E%3BDickens%2C+G+R%3BGracia%2C+E%3BGuerin%2C+G%3BHolland%2C+M%3BJohnson%2C+J+E%3BLee%2C+Y+J%3BLiu%2C+C+S%3BSu%2C+X%3BTeichert%2C+B%3BTomaru%2C+H%3BVanneste%2C+M%3BWatanabe%2C+M%3BWeinberger%2C+J+L&rft.aulast=Trehu&rft.aufirst=Anne&rft.date=2004-06-01&rft.volume=222&rft.issue=3-4&rft.spage=845&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2004.03.035 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2006-01-01 N1 - Number of references - 42 N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - accreting plate boundary; aliphatic hydrocarbons; alkanes; Cascadia subduction zone; chemical composition; climate; climate change; continental margin; East Pacific; fluid phase; gas hydrates; geochemistry; geophysical methods; geophysical profiles; geophysical surveys; global change; Hydrate Ridge; hydrocarbons; hydrochemistry; hydrothermal vents; infrared methods; Leg 204; marine sediments; methane; mid-ocean ridges; models; North Pacific; Northeast Pacific; Ocean Drilling Program; ocean floors; organic compounds; Pacific Ocean; resistivity; sampling; sea water; sediments; seismic methods; seismic profiles; spatial distribution; surveys; three-dimensional models; well-logging DO - http://dx.doi.org/10.1016/j.epsl.2004.03.035 ER - TY - JOUR T1 - Zero-valent iron removal rates of aqueous Cr(VI) measured under flow conditions AN - 51607762; 2006-026304 JF - Water, Air and Soil Pollution AU - Kaplan, Daniel I AU - Gilmore, T J Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 21 EP - 33 PB - Springer, Dordrecht VL - 155 IS - 1-4 SN - 0049-6979, 0049-6979 KW - United States KW - liquid phase KW - aquifer vulnerability KW - concentration KW - toxic materials KW - Washington KW - oxygen KW - detection limit KW - pollution KW - Hanford Site KW - iron KW - remediation KW - ground water KW - aquifers KW - carcinogens KW - chemical reactions KW - dissolved oxygen KW - dissolved materials KW - metals KW - water treatment KW - kinetics KW - SEM data KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51607762?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water%2C+Air+and+Soil+Pollution&rft.atitle=Zero-valent+iron+removal+rates+of+aqueous+Cr%28VI%29+measured+under+flow+conditions&rft.au=Kaplan%2C+Daniel+I%3BGilmore%2C+T+J&rft.aulast=Kaplan&rft.aufirst=Daniel&rft.date=2004-06-01&rft.volume=155&rft.issue=1-4&rft.spage=21&rft.isbn=&rft.btitle=&rft.title=Water%2C+Air+and+Soil+Pollution&rft.issn=00496979&rft_id=info:doi/ L2 - http://www.springerlink.com/(hi4cjunvnzs4hnradzi0ib55)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100344,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 25 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - WAPLAC N1 - SubjectsTermNotLitGenreText - aquifer vulnerability; aquifers; carcinogens; chemical reactions; concentration; detection limit; dissolved materials; dissolved oxygen; ground water; Hanford Site; iron; kinetics; liquid phase; metals; oxygen; pollution; remediation; SEM data; toxic materials; United States; Washington; water treatment ER - TY - JOUR T1 - Adatom Fe(III) on the hematite surface; observation of a key reactive surface species AN - 51291159; 2008-023333 AB - The reactivity of a mineral surface is determined by the variety and population of different types of surface sites (e.g., step, kink, adatom, and defect sites). The concept of "adsorbed nutrient" has been built into crystal growth theories, and many other studies of mineral surface reactivity appeal to ill-defined "active sites." Despite their theoretical importance, there has been little direct experimental or analytical investigation of the structure and properties of such species. Here, we use ex-situ and in-situ scanning tunneling microcopy (STM) combined with calculated images based on a resonant tunneling model to show that observed nonperiodic protrusions and depressions on the hematite (001) surface can be explained as Fe in an adsorbed or adatom state occupying sites different from those that result from simple termination of the bulk mineral. The number of such sites varies with sample preparation history, consistent with their removal from the surface in low pH solutions. JF - Geochemical Transactions AU - Eggleston, Carrick M AU - Stack, Andrew G AU - Rosso, Kevin M AU - Bice, Angela M Y1 - 2004/06// PY - 2004 DA - June 2004 PB - BioMed Central, London VL - 5 IS - 2 SN - 1467-4866, 1467-4866 KW - surface properties KW - scanning tunneling microscopy KW - hematite KW - impurities KW - data processing KW - oxides KW - techniques KW - adsorption KW - electron microscopy KW - image analysis KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51291159?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Eggleston%2C+Carrick+M%3BStack%2C+Andrew+G%3BRosso%2C+Kevin+M%3BBice%2C+Angela+M&rft.aulast=Eggleston&rft.aufirst=Carrick&rft.date=2004-06-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Adatom+Fe%28III%29+on+the+hematite+surface%3B+observation+of+a+key+reactive+surface+species&rft.title=Adatom+Fe%28III%29+on+the+hematite+surface%3B+observation+of+a+key+reactive+surface+species&rft.issn=14674866&rft_id=info:doi/10.1063%2F1.1772991 L2 - http://www.rsc.org/Publishing/Journals/GT/Index.asp LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 38 N1 - Document feature - illus. incl. table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - adsorption; data processing; electron microscopy; hematite; image analysis; impurities; oxides; scanning tunneling microscopy; surface properties; techniques DO - http://dx.doi.org/10.1063/1.1772991 ER - TY - JOUR T1 - Intercomparison experiments of systems for the measurement of xenon radionuclides in the atmosphere AN - 16180767; 5959367 AB - Radioactive xenon monitoring is one of the main technologies used for the detection of underground nuclear explosions. Precise and reliable measurements of super(131m)Xe, super(133g)Xe, super(133m)Xe, and super(135g)Xe are required as part of the International Monitoring System for compliance with the Comprehensive Nuclear-Test-Ban Treaty (CTBT). For the first time, simultaneous testing of four highly sensitive and automated fieldable radioxenon measurement systems has been performed and compared to established laboratory techniques. In addition to an intercomparison of radioxenon monitoring equipment of different design, this paper also presents a set of more than 2000 measurements of activity concentrations of radioactive xenon made in the city of Freiburg, Germany in 2000. The intercomparison experiment showed, that the results from the newly developed systems agree with each other and the equipment fulfills the fundamental requirements for their use in the verification regime of the CTBT. For 24-h measurements, concentrations as low as 0.1 mBq m super(-3) were measured for atmospheric samples ranging in size from 10 to 80 m super(3). The super(133)Xe activity concentrations detected in the ambient air ranged from below 1 mBq m super(-3) to above 100 mBq m super(-3). JF - Applied Radiation and Isotopes AU - Auer, M AU - Axelsson, A AU - Blanchard, X AU - Bowyer, T W AU - Brachet, G AU - Bulowski, I AU - Dubasov, Y AU - Elmgren, K AU - Fontaine, J P AU - Harms, W AU - Hayes, J C AU - Heimbigner, T R AU - McIntyre, JI AU - Panisko, ME AD - Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352, USA, ted.bowyer@pnl.gov Y1 - 2004/06// PY - 2004 DA - Jun 2004 SP - 863 EP - 877 VL - 60 IS - 6 SN - 0969-8043, 0969-8043 KW - Pollution Abstracts KW - Xenon KW - Pollution detection KW - Air sampling KW - Radioisotopes KW - Emission measurements KW - Germany, Freiburg KW - Urban areas KW - P 8000:RADIATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16180767?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Radiation+and+Isotopes&rft.atitle=Intercomparison+experiments+of+systems+for+the+measurement+of+xenon+radionuclides+in+the+atmosphere&rft.au=Auer%2C+M%3BAxelsson%2C+A%3BBlanchard%2C+X%3BBowyer%2C+T+W%3BBrachet%2C+G%3BBulowski%2C+I%3BDubasov%2C+Y%3BElmgren%2C+K%3BFontaine%2C+J+P%3BHarms%2C+W%3BHayes%2C+J+C%3BHeimbigner%2C+T+R%3BMcIntyre%2C+JI%3BPanisko%2C+ME&rft.aulast=Auer&rft.aufirst=M&rft.date=2004-06-01&rft.volume=60&rft.issue=6&rft.spage=863&rft.isbn=&rft.btitle=&rft.title=Applied+Radiation+and+Isotopes&rft.issn=09698043&rft_id=info:doi/10.1016%2Fj.apradiso.2004.01.011 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-08-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Pollution detection; Xenon; Emission measurements; Radioisotopes; Air sampling; Urban areas; Germany, Freiburg DO - http://dx.doi.org/10.1016/j.apradiso.2004.01.011 ER - TY - JOUR T1 - Bond-valence methods for pK (sub a) prediction; critical reanalysis and a new approach AN - 51727041; 2005-031922 AB - Bond-valence methods for the prediction of (hydr)oxide solution monomer and surface functional group acidity constants are examined in light of molecular structures calculated using ab initio methods. A new method is presented that is based on these calculated structures, and it is shown that previously published methods have neglected one or more of four essential features of a generalized model. First, if the apparent pK (sub a) values of solution monomers are to be used to predict intrinsic pK (sub a) values of surface functional groups, similar electrostatic corrections must be applied in both cases. In surface complexation models, electrostatic corrections are applied by representing a charged surface as a uniform plane of charge density, and an analogous correction can be made to solution monomers by treating them as charged spheres. Second, it must be remembered that real surfaces and real monomers are not homogeneous planes or spheres. Rather, charge density is distributed rather unevenly, and a further electrostatic correction (which is often quite large) must be made to account for the proximity of electron density to the point of proton attachment. Third, the unsaturated valence of oxygen atoms in oxyacids, hexaquo cations, and oxide surfaces is strongly correlated with acidity after electrostatic corrections are made. However, calculation of unsaturated valence for oxyacids and oxide surfaces must be based on realistic Me-O bond lengths (taking into account bond relaxation), which can be obtained from ab initio structure optimizations. Finally, unsaturated valence must be divided between possible bonds (four for oxygen atoms) to reflect the fact that O-H bonds are localized to particular regions of the O atoms. Empirical models that take all these factors into account are presented for oxyacids and hexaquo cations. These models are applied to the gibbsite (100), (010), (001), and cristobalite (100) surfaces, and it is demonstrated that the model for oxyacids predicts reasonable intrinsic pK (sub a) values for oxide surfaces. However, the prediction of surface pK (sub a) values is complex, because the protonation state of one functional group affects the pK (sub a) values of neighboring groups. Therefore, calculations of larger periodic systems, progressively protonated and reoptimized, are needed. JF - Geochimica et Cosmochimica Acta AU - Bickmore, Barry R AU - Tadanier, Christopher J AU - Rosso, Kevin M AU - Monn, Will D AU - Eggett, Dennis L Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 2025 EP - 2042 PB - Pergamon, Oxford VL - 68 IS - 9 SN - 0016-7037, 0016-7037 KW - silicates KW - numerical models KW - silica minerals KW - data processing KW - crystal structure KW - bonding KW - protons KW - molecular structure KW - digital simulation KW - cristobalite KW - MUSIC model KW - theoretical models KW - oxides KW - graphic methods KW - framework silicates KW - valency KW - gibbsite KW - crystal chemistry KW - geochemistry KW - 01A:General mineralogy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51727041?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Bond-valence+methods+for+pK+%28sub+a%29+prediction%3B+critical+reanalysis+and+a+new+approach&rft.au=Bickmore%2C+Barry+R%3BTadanier%2C+Christopher+J%3BRosso%2C+Kevin+M%3BMonn%2C+Will+D%3BEggett%2C+Dennis+L&rft.aulast=Bickmore&rft.aufirst=Barry&rft.date=2004-05-01&rft.volume=68&rft.issue=9&rft.spage=2025&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2003.11.008 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 60 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - bonding; cristobalite; crystal chemistry; crystal structure; data processing; digital simulation; framework silicates; geochemistry; gibbsite; graphic methods; molecular structure; MUSIC model; numerical models; oxides; protons; silica minerals; silicates; theoretical models; valency DO - http://dx.doi.org/10.1016/j.gca.2003.11.008 ER - TY - JOUR T1 - Coupled microbial and transport processes in soils AN - 51129706; 2006-006005 AB - This paper reviews methods for modeling coupled microbial and transport processes in variably saturated porous media. Of special interest in this work are interactions between active microbial growth and other transport processes such as gas diffusion and interphase exchange of O2 and other constituents that partition between the aqueous and gas phases. The role of gas-liquid interfaces on microbial transport is also discussed, and various possible kinetic and equilibrium formulations for bacterial cell attachment and detachment are reviewed. The primary objective of this paper is to highlight areas in which additional research may be needed-both experimental and numerical-to elucidate mechanisms associated with the complex interactions that take place between microbial processes and flow and transport processes in soils. In addition to their general ecological significance, these interactions have global-scale implications for C cycling in the environment and the related issue of climate change. JF - Vadose Zone Journal AU - Rockhold, M L AU - Yarwood, R R AU - Selker, J S AU - de Jonge, L W AU - Kjaergaard, C AU - Moldrup, P Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 368 EP - 383 PB - Soil Science Society of America, Madison, WI VL - 3 IS - 2 KW - soils KW - colloidal materials KW - gas-water interface KW - oxygen KW - gaseous phase KW - numerical analysis KW - unsaturated zone KW - porous materials KW - equations KW - capillary water KW - climate change KW - geochemical cycle KW - saturated zone KW - transport KW - mass balance KW - carbon KW - mathematical methods KW - bacteria KW - carbon cycle KW - mass transfer KW - pore water KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51129706?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Coupled+microbial+and+transport+processes+in+soils&rft.au=Rockhold%2C+M+L%3BYarwood%2C+R+R%3BSelker%2C+J+S%3Bde+Jonge%2C+L+W%3BKjaergaard%2C+C%3BMoldrup%2C+P&rft.aulast=Rockhold&rft.aufirst=M&rft.date=2004-05-01&rft.volume=3&rft.issue=2&rft.spage=368&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 138 N1 - PubXState - WI N1 - Document feature - illus. N1 - SuppNotes - Accessed on June 17, 2004 N1 - Last updated - 2014-09-18 N1 - SubjectsTermNotLitGenreText - bacteria; capillary water; carbon; carbon cycle; climate change; colloidal materials; equations; gas-water interface; gaseous phase; geochemical cycle; mass balance; mass transfer; mathematical methods; microorganisms; numerical analysis; oxygen; pore water; porous materials; saturated zone; soils; transport; unsaturated zone ER - TY - JOUR T1 - Microbiological comparison of core and groundwater samples collected from a fractured basalt aquifer with that of dialysis chambers incubated in situ AN - 50565815; 2008-129728 JF - Geomicrobiology Journal AU - Lehman, R Michael AU - O'Connell, Sean P AU - Banta, Amy AU - Frederickson, James K AU - Reysenbach, Anna-Louise AU - Kieft, Thomas L AU - Colwell, Frederick S Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 169 EP - 182 PB - Taylor & Francis, London VL - 21 IS - 3 SN - 0149-0451, 0149-0451 KW - United States KW - Snake River Plain Aquifer KW - fractured materials KW - Idaho KW - volcanic rocks KW - biomass KW - igneous rocks KW - geomicrobiology KW - samples KW - cores KW - ground water KW - aquifers KW - basalts KW - bacteria KW - dialysis chambers KW - microorganisms KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50565815?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geomicrobiology+Journal&rft.atitle=Microbiological+comparison+of+core+and+groundwater+samples+collected+from+a+fractured+basalt+aquifer+with+that+of+dialysis+chambers+incubated+in+situ&rft.au=Lehman%2C+R+Michael%3BO%27Connell%2C+Sean+P%3BBanta%2C+Amy%3BFrederickson%2C+James+K%3BReysenbach%2C+Anna-Louise%3BKieft%2C+Thomas+L%3BColwell%2C+Frederick+S&rft.aulast=Lehman&rft.aufirst=R&rft.date=2004-05-01&rft.volume=21&rft.issue=3&rft.spage=169&rft.isbn=&rft.btitle=&rft.title=Geomicrobiology+Journal&rft.issn=01490451&rft_id=info:doi/10.1080%2F01490450490275307 L2 - http://www.informaworld.com/smpp/title~content=t713722957~db=all LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 40 N1 - Document feature - illus. incl. 4 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GEJODG N1 - SubjectsTermNotLitGenreText - aquifers; bacteria; basalts; biomass; cores; dialysis chambers; fractured materials; geomicrobiology; ground water; Idaho; igneous rocks; microorganisms; samples; Snake River Plain Aquifer; United States; volcanic rocks DO - http://dx.doi.org/10.1080/01490450490275307 ER - TY - JOUR T1 - Maximum likelihood Bayesian averaging of spatial variability models in unsaturated fractured tuff AN - 18045251; 5941945 AB - Hydrologic analyses typically rely on a single conceptual-mathematical model. Yet hydrologic environments are open and complex, rendering them prone to multiple interpretations and mathematical descriptions. Adopting only one of these may lead to statistical bias and underestimation of uncertainty. Bayesian model averaging (BMA) [Hoeting et al. 1999] provides an optimal way to combine the predictions of several competing models and to assess their joint predictive uncertainty. However, it tends to be computationally demanding and relies heavily on prior information about model parameters. Neuman [2002, 2003] proposed a maximum likelihood version (MLBMA) of BMA to render it computationally feasible and to allow dealing with cases where reliable prior information is lacking. We apply MLBMA to seven alternative variogram models of log air permeability data from single-hole pneumatic injection tests in six boreholes at the Apache Leap Research Site (ALRS) in central Arizona. Unbiased ML estimates of variogram and drift parameters are obtained using adjoint state maximum likelihood cross validation [Samper and Neuman, 1989a] in conjunction with universal kriging and generalized least squares. Standard information criteria provide an ambiguous ranking of the models, which does not justify selecting one of them and discarding all others as is commonly done in practice. Instead, we eliminate some of the models based on their negligibly small posterior probabilities and use the rest to project the measured log permeabilities by kriging onto a rock volume containing the six boreholes. We then average these four projections and associated kriging variances, using the posterior probability of each model as weight. Finally, we cross validate the results by eliminating from consideration all data from one borehole at a time, repeating the above process and comparing the predictive capability of MLBMA with that of each individual model. We find that MLBMA is superior to any individual geostatistical model of log permeability among those we consider at the ALRS. JF - Water Resources Research AU - Ye, M AU - Neuman, S P AU - Meyer, P D AD - Pacific Northwest National Laboratory, Richland, Washington, USA Y1 - 2004/05// PY - 2004 DA - May 2004 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 USA, [mailto:service@agu.org], [URL:http://www.agu.org] VL - 40 IS - 5 SN - 0043-1397, 0043-1397 KW - Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - Citation No. W05113 KW - Prediction KW - Model Testing KW - Injection KW - Boreholes KW - Permeability KW - Hydrologic Models KW - Spatial variability KW - Hydrologic analysis KW - Projections KW - Model Studies KW - Rocks KW - USA, Arizona KW - Standards KW - Water resources research KW - AQ 00001:Water Resources and Supplies KW - M2 556.18:Water Management (556.18) KW - SW 4010:Techniques of planning UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18045251?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Maximum+likelihood+Bayesian+averaging+of+spatial+variability+models+in+unsaturated+fractured+tuff&rft.au=Ye%2C+M%3BNeuman%2C+S+P%3BMeyer%2C+P+D&rft.aulast=Ye&rft.aufirst=M&rft.date=2004-05-01&rft.volume=40&rft.issue=5&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2003WR002557 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Publication date refers to online version. N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Hydrologic Models; Boreholes; Permeability; Model Studies; Injection; Rocks; Model Testing; Prediction; Standards; Projections; USA, Arizona; Water resources research; Spatial variability; Hydrologic analysis DO - http://dx.doi.org/10.1029/2003WR002557 ER - TY - JOUR T1 - Chemical and meteorological characteristics associated with rapid increases of O sub(3) in Houston, Texas AN - 16175021; 5941831 AB - We report here on measurements made from the 62nd story of the Williams Tower on the west side of Houston, Texas between 15 August and 15 September 2000. The time series of trace gases differ from those at many other urban sites in having very rapidly increasing spikes of O sub(3), HCHO, and PAN. Measurements show that the highest O sub(3) levels in Houston are not always those measured at the surface, and the extreme values may occur aloft. Plumes with high O sub(3) appear to be produced largely from local sources and to have the potential to form additional O sub(3). The ozone production efficiency (7 molecules of O sub(3) produced per molecule of NO sub(x) consumed) when delta O sub(3)/ delta t >= 20 ppb per 15 min was found to be smaller than estimates made from observations directly downwind of the Ship Channel petrochemical plants (e.g. similar to 12). Back trajectories show that simple straight line flow was associated with mean O sub(3) levels of 56 ppb, in contrast to flow patterns associated with a decrease in wind speed or flow reversal, which were associated with mean values of 63 ppb and extremes in excess of 125ppb. VOC samples taken during periods when delta O sub(3)/ delta t >= 20 ppb per 15 min were elevated and in particular light olefins were more than a factor of 7 greater than the corresponding samples collected on other occasions. No significant increase in isoprene at the Williams Tower was associated with these episodes. When air passed over stack emissions in eastern Houston, rich in VOCs, a Lagrangian model simulated O sub(3) production rates of similar to 50 ppb hr super(-1). JF - Journal of Geophysical Research. D. Atmospheres AU - Berkowitz, C M AU - Jobson, T AU - Jiang, G AU - Spicer, C W AU - Doskey, P V AD - Pacific Northwest National Laboratory, Richland, Washington, USA Y1 - 2004/05// PY - 2004 DA - May 2004 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 USA, [mailto:service@agu.org], [URL:http://www.agu.org] VL - 109 IS - D10 SN - 0148-0227, 0148-0227 KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts KW - Citation No. D10307 KW - pollution KW - Houston KW - chemistry KW - 0317 Atmospheric Composition and Structure: Chemical kinetic and photochemical properties KW - 0345 Atmospheric Composition and Structure: Pollution KW - urban and regional (0305) KW - 0368 Atmospheric Composition and Structure: Troposphere KW - constituent transport and chemistry KW - Chemical composition KW - Atmospheric pollution chemistry KW - Formaldehyde in the atmosphere KW - Ozone-volatile organic compounds relationships KW - Ozone production KW - Ozone in urban air KW - Peroxyacetyl nitrate in air KW - Atmospheric chemistry KW - Air trajectories KW - Meteorology KW - Plumes KW - USA, Texas, Houston KW - Volatile organic compounds KW - Ozone KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16175021?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.atitle=Chemical+and+meteorological+characteristics+associated+with+rapid+increases+of+O+sub%283%29+in+Houston%2C+Texas&rft.au=Berkowitz%2C+C+M%3BJobson%2C+T%3BJiang%2C+G%3BSpicer%2C+C+W%3BDoskey%2C+P+V&rft.aulast=Berkowitz&rft.aufirst=C&rft.date=2004-05-01&rft.volume=109&rft.issue=D10&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.issn=01480227&rft_id=info:doi/10.1029%2F2003JD004141 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-12-01 N1 - SuppNotes - Publication date refers to online version. N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Ozone production; Atmospheric pollution chemistry; Peroxyacetyl nitrate in air; Ozone in urban air; Air trajectories; Formaldehyde in the atmosphere; Ozone-volatile organic compounds relationships; Chemical composition; Atmospheric chemistry; Meteorology; Plumes; Volatile organic compounds; Ozone; USA, Texas, Houston DO - http://dx.doi.org/10.1029/2003JD004141 ER - TY - JOUR T1 - Development of a physiologically based pharmacokinetic model for chlorobenzene in F-344 rats AN - 17979741; 5934296 AB - A physiologically based pharmacokinetic (PBPK) model to describe the absorption, distribution, metabolism, and elimination of chlorobenzene in rats was developed. Partition coefficients were experimentally determined in rat tissues and blood samples using an in vitro vial equilibration technique. These solubility ratios were in agreement with previous reports. The in vivo metabolism of chlorobenzene was evaluated using groups of three F344 male rats exposed to initial chlorobenzene concentrations ranging from 82 to 6750 ppm in a closed, recirculating gas uptake system. An optimal fit of the family of uptake curves was obtained by adjusting Michaelis-Menten metabolic constants, K sub(m) (affinity) and V sub(max) (capacity), using the PBPK model. At the highest chamber concentration, the uptake curve could not be modeled without the addition of a first-order (K sub(fo)) metabolic pathway. Pretreatment with pyrazole, an inhibitor of oxidative microsomal metabolism, had no impact on the slope of the uptake curve. The completed PBPK model was evaluated against real-time exhaled breath data collected from rats receiving either an intraperitoneal (ip) injection or oral gavage dose of chlorobenzene in corn oil. Exhaled breath profiles were evaluated and absorption rates were determined. Development of the chlorobenzene PBPK model in rats is the first step toward future extrapolations to apply to humans. JF - Journal of Toxicology and Environmental Health, Part A: Current Issues AU - Thrall, K D AU - Woodstock, AD AU - Kania, M R AD - Biological Sciences Division, Pacific Northwest National Laboratory, 902 Battelle Blvd., Mail Stop P7-59, Richland, WA 99352, USA, karla.thrall@pnl.gov Y1 - 2004/04/09/ PY - 2004 DA - 2004 Apr 09 SP - 525 EP - 536 VL - 67 IS - 7 SN - 1528-7394, 1528-7394 KW - rats KW - Toxicology Abstracts KW - Mathematical models KW - Chlorobenzene KW - Pharmacokinetics KW - Metabolism KW - X 24153:Metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17979741?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Toxicology+and+Environmental+Health%2C+Part+A%3A+Current+Issues&rft.atitle=Development+of+a+physiologically+based+pharmacokinetic+model+for+chlorobenzene+in+F-344+rats&rft.au=Thrall%2C+K+D%3BWoodstock%2C+AD%3BKania%2C+M+R&rft.aulast=Thrall&rft.aufirst=K&rft.date=2004-04-09&rft.volume=67&rft.issue=7&rft.spage=525&rft.isbn=&rft.btitle=&rft.title=Journal+of+Toxicology+and+Environmental+Health%2C+Part+A%3A+Current+Issues&rft.issn=15287394&rft_id=info:doi/10.1080%2F15287390490425731 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Metabolism; Mathematical models; Pharmacokinetics; Chlorobenzene DO - http://dx.doi.org/10.1080/15287390490425731 ER - TY - JOUR T1 - Conformational changes within the cytosolic portion of phospholamban upon release of Ca-ATPase inhibition. AN - 71777043; 15049694 AB - Phospholamban (PLB) is a major target of the beta-adrenergic cascade in the heart, functioning to modulate contractile force by altering the rate of calcium re-sequestration by the Ca-ATPase. Functionally, inhibition by PLB binding is manifested by shifts in the calcium dependence of Ca-ATPase activation toward higher calcium levels; phosphorylation of PLB by PKA reverses the inhibitory action of PLB. To investigate structural changes in the cytoplasmic portion of PLB that result from either the phosphorylation of PLB by cAMP-dependent protein kinase (PKA) or calcium binding to the Ca-ATPase, we have used frequency-domain fluorescence spectroscopy to measure the spatial separation and conformational heterogeneity between N-(1-pyrenyl)maleimide, covalently bound to a single cysteine (Cys(24)) engineered near the membrane surface of the transmembrane domain of PLB, and Tyr(6) in the cytosolic domain. Irrespective of calcium activation of the Ca-ATPase or phosphorylation of Ser(16) in PLB by PKA, we find that PLB remains tightly associated with the Ca-ATPase in a well-defined conformation. However, calcium activation of the Ca-ATPase induces an increase in the overall dimensions of the cytoplasmic portion of bound PLB, whereas PLB phosphorylation results in a more compact structure, consistent with increased helical content induced by a salt link between phospho-Ser(16) and Arg(13). Thus, enzyme activation of the Ca-ATPase may occur through different mechanisms: calcium binding to high-affinity sites within the Ca-ATPase functions to overcome conformational constraints imposed by PLB on the N-domain of the Ca-ATPase; alternatively, phosphorylation stabilizes the backbone fold of PLB to release inhibitory interactions with the Ca-ATPase. JF - Biochemistry AU - Li, Jinhui AU - Bigelow, Diana J AU - Squier, Thomas C AD - Cell Biology Group, Biological Sciences Division, Fundamental Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, USA. Y1 - 2004/04/06/ PY - 2004 DA - 2004 Apr 06 SP - 3870 EP - 3879 VL - 43 IS - 13 SN - 0006-2960, 0006-2960 KW - Calcium-Binding Proteins KW - 0 KW - Enzyme Inhibitors KW - Maleimides KW - phospholamban KW - N-(3-pyrene)maleimide KW - 9SZY1M545Z KW - Cyclic AMP-Dependent Protein Kinases KW - EC 2.7.11.11 KW - Calcium-Transporting ATPases KW - EC 3.6.3.8 KW - Cysteine KW - K848JZ4886 KW - Alanine KW - OF5P57N2ZX KW - Calcium KW - SY7Q814VUP KW - Index Medicus KW - Muscle Fibers, Fast-Twitch -- metabolism KW - Cyclic AMP-Dependent Protein Kinases -- metabolism KW - Animals KW - Calcium -- chemistry KW - Enzyme Activation KW - Cysteine -- genetics KW - Fluorescence Resonance Energy Transfer KW - Maleimides -- chemistry KW - Rabbits KW - Amino Acid Sequence KW - Mutagenesis, Site-Directed KW - Protein Structure, Tertiary -- genetics KW - Phosphorylation KW - Fluorescence Polarization KW - Muscle Fibers, Fast-Twitch -- enzymology KW - Molecular Sequence Data KW - Alanine -- genetics KW - Protein Conformation KW - Calcium-Transporting ATPases -- chemistry KW - Cytosol -- enzymology KW - Enzyme Inhibitors -- chemistry KW - Enzyme Inhibitors -- metabolism KW - Cytosol -- chemistry KW - Calcium-Transporting ATPases -- antagonists & inhibitors KW - Calcium-Binding Proteins -- genetics KW - Calcium-Transporting ATPases -- metabolism KW - Calcium-Binding Proteins -- metabolism KW - Calcium-Binding Proteins -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71777043?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry&rft.atitle=Conformational+changes+within+the+cytosolic+portion+of+phospholamban+upon+release+of+Ca-ATPase+inhibition.&rft.au=Li%2C+Jinhui%3BBigelow%2C+Diana+J%3BSquier%2C+Thomas+C&rft.aulast=Li&rft.aufirst=Jinhui&rft.date=2004-04-06&rft.volume=43&rft.issue=13&rft.spage=3870&rft.isbn=&rft.btitle=&rft.title=Biochemistry&rft.issn=00062960&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-07-29 N1 - Date created - 2004-03-30 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Noninvasive biomonitoring approaches to determine dosimetry and risk following acute chemical exposure: analysis of lead or organophosphate insecticide in saliva. AN - 72017539; 15192859 AB - There is a need to develop approaches for assessing risk associated with acute exposures to a broad range of metals and chemical agents and to rapidly determine the potential implications to human health. Noninvasive biomonitoring approaches are being developed using reliable portable analytical systems to quantitate dosimetry utilizing readily obtainable body fluids, such as saliva. Saliva has been used to evaluate a broad range of biomarkers, drugs, and environmental contaminants, including heavy metals and pesticides. To advance the application of noninvasive biomonitoring a microfluidic/electrochemical device has also been developed for the analysis of lead (Pb), using square-wave anodic stripping voltametry. The system demonstrates a linear response over a broad concentration range (1-2000 ppb) and is capable of quantitating saliva Pb in rats orally administered acute doses of Pb acetate. Appropriate pharmacokinetic analyses have been used to quantitate systemic dosimetry based on determination of saliva Pb concentrations. In addition, saliva has recently been used to quantitate dosimetry following exposure to the organophosphate insecticide chlorpyrifos in a rodent model system by measuring the major metabolite, trichloropyridinol, and saliva cholinesterase inhibition following acute exposures. These results suggest that technology developed for noninvasive biomonitoring can provide a sensitive and portable analytical tool capable of assessing exposure and risk in real-time. By coupling these noninvasive technologies with pharmacokinetic modeling it is feasible to rapidly quantitate acute exposure to a broad range of chemical agents. In summary, it is envisioned that once fully developed, these monitoring and modeling approaches will be useful for evaluating acute exposure and health risk. JF - Journal of toxicology and environmental health. Part A AU - Timchalk, Charles AU - Poet, Torka S AU - Kousba, Ahmed A AU - Campbell, James A AU - Lin, Yuehe AD - Pacific Northwest National Laboratory, MSIN: P7-59, 902 Battelle Blvd., PO Box 999, Richland, WA 99352, USA. charles.timchalk@pnl.gov PY - 2004 SP - 635 EP - 650 VL - 67 IS - 8-10 SN - 1528-7394, 1528-7394 KW - Hazardous Substances KW - 0 KW - Insecticides KW - Organometallic Compounds KW - Organophosphorus Compounds KW - lead acetate KW - RX077P88RY KW - Index Medicus KW - Rats KW - Animals KW - Organometallic Compounds -- pharmacokinetics KW - Insecticides -- toxicity KW - Saliva -- chemistry KW - Hazardous Substances -- pharmacokinetics KW - Environmental Exposure KW - Insecticides -- pharmacokinetics KW - Saliva -- metabolism KW - Organometallic Compounds -- toxicity KW - Environmental Monitoring -- methods KW - Hazardous Substances -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72017539?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+toxicology+and+environmental+health.+Part+A&rft.atitle=Noninvasive+biomonitoring+approaches+to+determine+dosimetry+and+risk+following+acute+chemical+exposure%3A+analysis+of+lead+or+organophosphate+insecticide+in+saliva.&rft.au=Timchalk%2C+Charles%3BPoet%2C+Torka+S%3BKousba%2C+Ahmed+A%3BCampbell%2C+James+A%3BLin%2C+Yuehe&rft.aulast=Timchalk&rft.aufirst=Charles&rft.date=2004-04-01&rft.volume=67&rft.issue=8-10&rft.spage=635&rft.isbn=&rft.btitle=&rft.title=Journal+of+toxicology+and+environmental+health.+Part+A&rft.issn=15287394&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-06-24 N1 - Date created - 2004-06-14 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Response of winter birds to soil remediation along the Columbia River at the Hanford Site. AN - 71812369; 15074620 AB - The Columbia River at the Hanford Site, located in south-central Washington State, U.S.A., is a regionally important refugium for overwintering birds. Some of the river shoreline has been designated by the U.S. Department of Energy for environmental clean-up following past production of materials for nuclear weapons. We evaluated the effects of soil remediation on winter birds at six inactive nuclear reactor areas. Remediation activities consisted of daily excavation and removal of approximately 1035 t of contaminated soil from previously herbicided and denuded areas located between 30 and 400 m and mostly in line-of-sight of the river shoreline. Remediation activities had no apparent effect on numbers of riverine or terrestrial birds using adjacent undisturbed shoreline and riparian habitat. JF - Environmental monitoring and assessment AU - Becker, J M AU - McKinstry, C A AD - Pacific Northwest National Laboratory, Richland, Washington, USA. james.becker@pnl.gov PY - 2004 SP - 277 EP - 286 VL - 93 IS - 1-3 SN - 0167-6369, 0167-6369 KW - Soil Pollutants, Radioactive KW - 0 KW - Index Medicus KW - Environmental Pollution -- prevention & control KW - Animals KW - Washington KW - Population Dynamics KW - Seasons KW - Conservation of Natural Resources KW - Soil Pollutants, Radioactive -- poisoning KW - Power Plants KW - Birds KW - Soil Pollutants, Radioactive -- isolation & purification UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71812369?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+monitoring+and+assessment&rft.atitle=Response+of+winter+birds+to+soil+remediation+along+the+Columbia+River+at+the+Hanford+Site.&rft.au=Becker%2C+J+M%3BMcKinstry%2C+C+A&rft.aulast=Becker&rft.aufirst=J&rft.date=2004-04-01&rft.volume=93&rft.issue=1-3&rft.spage=277&rft.isbn=&rft.btitle=&rft.title=Environmental+monitoring+and+assessment&rft.issn=01676369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-06-15 N1 - Date created - 2004-04-12 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Results of inspection and cleaning of two radionuclide air-sampling systems based on the requirements of ANSI/HPS N13.1-1999. AN - 71785747; 15057063 AB - The Pacific Northwest National Laboratory inspected and cleaned two radionuclide air-sampling systems that continuously monitor radioactive air emissions from research and development facilities. The inspection and cleaning was performed to evaluate effective methods and potential cost impacts of maintenance requirements in the revised American National Standard Institute standard Sampling and Monitoring Releases of Airborne Radioactive Substances from the Stacks and Ducts of Nuclear Facilities. The standard requires at least annual inspections of sampling systems followed by cleaning if deposits are visible. During 2001 and 2002, inspections were performed leaving the sampling systems in place and inserting videoscope cables into different access points to allow viewing of the inside and outside of sampling manifolds and transport lines. Cleaning was performed on one of the systems by disconnecting and extracting the sampling manifold, then washing it with de-ionized water and scrub brushes. The wash water was analyzed for radioactivity and solids. Results of the inspection showed greater deposition in one of the systems than would be expected by a High Efficiency Particulate Air (HEPA) filtered exhaust stream, possibly due to accumulation of dust from a short period when unfiltered air was exhausted from construction areas. The second system was also downstream of HEPA filters and appeared much cleaner. The videoscope was a useful and cost-effective tool and provided a better view than could be obtained with the naked eye. However, because even small amounts of deposition were made visible with the videoscope, clarification is needed in defining when probe washing is merited, particularly in existing sampling systems whose design is not conducive to easy removal and cleaning. JF - Health physics AU - Barnett, J M AU - Ballinger, M Y AU - Gervais, T L AU - Douglas, D D AU - Edwards, D L AD - Pacific Northwest National Laboratory, PO Box 999 MSIN P7-68, Richland, WA 99352, USA. matthew.barnett@pnl.gov Y1 - 2004/04// PY - 2004 DA - April 2004 SP - 416 EP - 424 VL - 86 IS - 4 SN - 0017-9078, 0017-9078 KW - Aerosols KW - 0 KW - Air Pollutants, Radioactive KW - Radioactive Waste KW - Radioisotopes KW - Index Medicus KW - United States KW - Sensitivity and Specificity KW - Aerosols -- analysis KW - Radiation Dosage KW - Videotape Recording -- methods KW - Reproducibility of Results KW - Risk Assessment -- methods KW - Environmental Monitoring -- methods KW - Risk Assessment -- trends KW - Environmental Monitoring -- instrumentation KW - Decontamination -- methods KW - Radiometry -- instrumentation KW - Radiation Protection -- methods KW - Radioactive Waste -- analysis KW - Air Pollutants, Radioactive -- analysis KW - Radioisotopes -- analysis KW - Radiometry -- methods KW - Radiometry -- standards KW - Radiation Protection -- instrumentation KW - Air Pollutants, Radioactive -- standards KW - Radiation Protection -- standards KW - Decontamination -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71785747?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=Results+of+inspection+and+cleaning+of+two+radionuclide+air-sampling+systems+based+on+the+requirements+of+ANSI%2FHPS+N13.1-1999.&rft.au=Barnett%2C+J+M%3BBallinger%2C+M+Y%3BGervais%2C+T+L%3BDouglas%2C+D+D%3BEdwards%2C+D+L&rft.aulast=Barnett&rft.aufirst=J&rft.date=2004-04-01&rft.volume=86&rft.issue=4&rft.spage=416&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-05-11 N1 - Date created - 2004-04-01 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Evaluation of sampling locations for two radionuclide air-sampling systems based on the requirements of ANSI/HPS N13.1-1999. AN - 71783652; 15057062 AB - The Pacific Northwest National Laboratory characterized the performance of sampling locations for two radionuclide air-sampling systems that continuously monitor radioactive air emissions from research and development facilities. The testing was conducted to determine whether sampling system locations would meet the criteria for uniform air velocity and contaminant concentration in the American National Standard Institute standard, Sampling and Monitoring Releases of Airborne Radioactive Substances from the Stacks and Ducts of Nuclear Facilities (ANSI/HPS N13.1-1999). The standard is a revision of the 1969 version that the facilities have been required to meet. Whereas the 1969 standard provided prescriptive criteria for the selection of sampling locations, the 1999 standard is performance-based and requires well-mixed sampling locations that must be demonstrated through performance tests that are specified in the standard. Testing at the Life Sciences Laboratory I was performed on the existing stack at the current sampling location; a scale model was built and used in place of the Radiochemical Processing Laboratory. Although both facilities' sampling sites were compliant with the 1969 standard, only the Radiochemical Processing Laboratory met the criteria of the revised standard. In the future, the use of a computational fluid dynamics computer model may be useful in determining whether a sampling location is likely to test successfully. JF - Health physics AU - Ballinger, M Y AU - Barnett, J M AU - Glissmeyer, J A AU - Edwards, D L AD - Pacific Northwest National Laboratory, PO Box 999 MSIN P7-68, Richland, WA 99352, USA. ballingerm@battelle.org Y1 - 2004/04// PY - 2004 DA - April 2004 SP - 406 EP - 415 VL - 86 IS - 4 SN - 0017-9078, 0017-9078 KW - Aerosols KW - 0 KW - Air Pollutants, Radioactive KW - Radioactive Waste KW - Radioisotopes KW - Index Medicus KW - United States KW - Sensitivity and Specificity KW - Aerosols -- analysis KW - Radiation Dosage KW - Reproducibility of Results KW - Sample Size KW - Risk Assessment -- methods KW - Environmental Monitoring -- methods KW - Risk Assessment -- trends KW - Environmental Monitoring -- instrumentation KW - Radiometry -- instrumentation KW - Radiation Protection -- methods KW - Radioactive Waste -- analysis KW - Air Pollutants, Radioactive -- analysis KW - Radioisotopes -- analysis KW - Radiometry -- methods KW - Radiometry -- standards KW - Radiation Protection -- instrumentation KW - Air Pollutants, Radioactive -- standards KW - Radiation Protection -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71783652?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=Evaluation+of+sampling+locations+for+two+radionuclide+air-sampling+systems+based+on+the+requirements+of+ANSI%2FHPS+N13.1-1999.&rft.au=Ballinger%2C+M+Y%3BBarnett%2C+J+M%3BGlissmeyer%2C+J+A%3BEdwards%2C+D+L&rft.aulast=Ballinger&rft.aufirst=M&rft.date=2004-04-01&rft.volume=86&rft.issue=4&rft.spage=406&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-05-11 N1 - Date created - 2004-04-01 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Dissolution of Columbia River Basalt and implications of CO (sub 2) sequestration AN - 51790143; 2004-079347 AB - Flood basalt volcanism occurred in the Pacific Northwest between 17.5 and 6 Ma, when over 300 basaltic lavas of the Columbia River Basalt Group were erupted from fissures in eastern Washington, eastern Oregon, and western Idaho. These flood-basalts cover over 200,000 km (super 2) and have an estimated volume of more than 234,000 km (super 3) . Many of the lavas were of extraordinary size with some exceeding 10,000 km (super 3) and traveling many hundreds of kilometers westward from vent systems. The presence of naturally occurring siderite and calcite indicate that the basalt flows have reacted with CO (sub 2) in the past. In order to understand these conditions and the potential for basalt to sequester greenhouse gases, we have under taken dissolution experiments. Steady-state dissolution rates of two samples of the Sentinel Bluffs Member, Grande Ronde Basalt were measured in a well-mixed batch reactor over a range of pH values (3.0 to 7.0) and temperatures (22 degrees , 40 degrees , 70 degrees , and 90 degrees C). Results show that as the pH increases from 3 to 7, the dissolution rate decreases. When normalized by initial geometric surface area, the basalt samples have similar dissolution rates found in the literature for olivine, augite, anorthite, and basaltic glasses. These results show the potential basalt formations have to convert injected CO (sub 2) into solid carbonate minerals. JF - Abstracts with Programs - Geological Society of America AU - Schaef, H Todd AU - Reidel, S R AU - McGrail, B Peter AU - Anonymous Y1 - 2004/04// PY - 2004 DA - April 2004 SP - 32 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 4 SN - 0016-7592, 0016-7592 KW - United States KW - silicates KW - flood basalts KW - volcanic rocks KW - igneous rocks KW - Sentinel Bluffs Member KW - olivine group KW - solution KW - paleoclimatology KW - climate change KW - carbon dioxide KW - Cenozoic KW - Oregon KW - mineral composition KW - volcanism KW - olivine KW - basalts KW - orthosilicates KW - geochemistry KW - pH KW - Washington KW - sequestration KW - Columbia River Basalt Group KW - Grande Ronde Basalt KW - Miocene KW - nesosilicates KW - Tertiary KW - paleoenvironment KW - Neogene KW - steady-state processes KW - carbonates KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51790143?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Dissolution+of+Columbia+River+Basalt+and+implications+of+CO+%28sub+2%29+sequestration&rft.au=Schaef%2C+H+Todd%3BReidel%2C+S+R%3BMcGrail%2C+B+Peter%3BAnonymous&rft.aulast=Schaef&rft.aufirst=H&rft.date=2004-04-01&rft.volume=36&rft.issue=4&rft.spage=32&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Rocky Mountain Section, 56th annual meeting; Geological Society of America, Cordilleran Section, 100th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - basalts; carbon dioxide; carbonates; Cenozoic; climate change; Columbia River Basalt Group; flood basalts; geochemistry; Grande Ronde Basalt; igneous rocks; mineral composition; Miocene; Neogene; nesosilicates; olivine; olivine group; Oregon; orthosilicates; paleoclimatology; paleoenvironment; pH; Sentinel Bluffs Member; sequestration; silicates; solution; steady-state processes; Tertiary; United States; volcanic rocks; volcanism; Washington ER - TY - JOUR T1 - Compositional heterogeneity in Columbia River Basalt Group flows AN - 51789582; 2004-079610 AB - Columbia River Basalt Group flows always have been thought to be homogeneous because of the relatively narrow compositional range observed in many of the eruptions. Detailed studies over the past several years, however, have shown that many flows are highly variable, both laterally and vertically through a flow. The source of the heterogeneity has been suggested to result from initial magma compositional variability, in situ fractional crystallization and, more recently, compaction. The compositional variation of several Grande Ronde Basalt flows is examined from their dike systems to distal edges. The least variability was found in the Umtanum flow, which consists of approximately 5,000 km (super 3) of lava. The 10,000 km (super 3) Sentinel Bluffs Member has greater variability, especially in the Cohassett flow in central Washington. The Sentinel Bluffs Member has six regional compositional types. The Cohassett flow has compositional layers that are identical to four of the regional compositional types. The order of compositional zoning reflects the sequence of eruptions. Numerical modeling results suggest that in situ fractional crystallization or compaction cannot account for the variations observed in the Cohassett flow. The compositional types and the field relations are best explained by rapid changes in magma composition feeding regional flows. The compositional layering developed as new compositions were injected to form the Cohassett flow. JF - Abstracts with Programs - Geological Society of America AU - Reidel, Stephen P AU - Anonymous Y1 - 2004/04// PY - 2004 DA - April 2004 SP - 98 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 4 SN - 0016-7592, 0016-7592 KW - United States KW - flood basalts KW - Cohassett Flow KW - volcanic rocks KW - igneous rocks KW - Sentinel Bluffs Member KW - Cenozoic KW - mineral composition KW - basalts KW - heterogeneity KW - chemical composition KW - geochemistry KW - zoning KW - Washington KW - numerical models KW - lava flows KW - Columbia River Basalt Group KW - Grande Ronde Basalt KW - Miocene KW - Tertiary KW - Neogene KW - magmas KW - eruptions KW - petrography KW - fractional crystallization KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51789582?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Compositional+heterogeneity+in+Columbia+River+Basalt+Group+flows&rft.au=Reidel%2C+Stephen+P%3BAnonymous&rft.aulast=Reidel&rft.aufirst=Stephen&rft.date=2004-04-01&rft.volume=36&rft.issue=4&rft.spage=98&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Rocky Mountain Section, 56th annual meeting; Geological Society of America, Cordilleran Section, 100th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - basalts; Cenozoic; chemical composition; Cohassett Flow; Columbia River Basalt Group; eruptions; flood basalts; fractional crystallization; geochemistry; Grande Ronde Basalt; heterogeneity; igneous rocks; lava flows; magmas; mineral composition; Miocene; Neogene; numerical models; petrography; Sentinel Bluffs Member; Tertiary; United States; volcanic rocks; Washington; zoning ER - TY - JOUR T1 - Biogeochemical transformation of Fe minerals in a petroleum-contaminated aquifer AN - 51730023; 2005-029997 AB - The Bemidji aquifer in Minnesota, USA is a well-studied site of subsurface petroleum contamination. The site contains an anoxic groundwater plume where soluble petroleum constituents serve as an energy source for a region of methanogenesis near the source and bacterial Fe(III) reduction further down gradient. Methanogenesis apparently begins when bioavailable Fe(III) is exhausted within the sediment. Past studies indicate that Geobacter species and Geothrix fermentens-like organisms are the primary dissimilatory Fe-reducing bacteria at this site. The Fe mineralogy of the pristine aquifer sediments and samples from the methanogenic (source) and Fe(III) reducing zones were characterized in this study to identify microbiologic changes to Fe valence and mineral distribution, and to identify whether new biogenic mineral phases had formed. Methods applied included X-ray diffraction; X-ray fluorescence (XRF); and chemical extraction; optical, transmission, and scanning electron microscopy; and Mossbauer spectroscopy. All of the sediments were low in total Fe content ( nearly equal 1%) and exhibited complex Fe-mineralogy. The bulk pristine sediment and its sand, silt, and clay-sized fractions were studied in detail. The pristine sediments contained Fe(II) and Fe(III) mineral phases. Ferrous iron represented approximately 50% of Fe (sub TOT) . The relative Fe(II) concentration increased in the sand fraction, and its primary mineralogic residence was clinochlore with minor concentrations found as a ferroan calcite grain cement in carbonate lithic fragments. Fe(III) existed in silicates (epidote, clinochlore, muscovite) and Fe(III) oxides of detrital and authigenic origin. The detrital Fe(III) oxides included hematite and goethite in the form of mm-sized nodular concretions and smaller-sized dispersed crystallites, and euhedral magnetite grains. Authigenic Fe(III) oxides increased in concentration with decreasing particle size through the silt and clay fraction. Chemical extraction and Mossbauer analysis indicated that this was a ferrihydrite like-phase. Quantitative mineralogic and Fe(II/III) ratio comparisons between the pristine and contaminated sediments were not possible because of textural differences. However, comparisons between the texturally-similar source (where bioavailable Fe(III) had been exhausted) and Fe(III) reducing zone sediments (where bioavailable Fe(III) remained) indicated that dispersed detrital, crystalline Fe(III) oxides and a portion of the authigenic, poorly crystalline Fe(III) oxide fraction had been depleted from the source zone sediment by microbiologic activity. Little or no effect of microbiologic activity was observed on silicate Fe(III). The presence of residual "ferrihydrite" in the most bioreduced, anoxic plume sediment (source) implied that a portion of the authigenic Fe(III) oxides were biologically inaccessible in weathered, lithic fragment interiors. Little evidence was found for the modern biogenesis of authigenic ferrous-containing mineral phases, perhaps with the exception of thin siderite or ferroan calcite surface precipitates on carbonate lithic fragments within source zone sediments. JF - Geochimica et Cosmochimica Acta AU - Zachara, John M AU - Kukkadapu, Ravi K AU - Gassman, Paul L AU - Dohnalkova, Alice C AU - Fredrickson, Jim K AU - Anderson, Todd Y1 - 2004/04// PY - 2004 DA - April 2004 SP - 1791 EP - 1805 PB - Pergamon, Oxford VL - 68 IS - 8 SN - 0016-7037, 0016-7037 KW - United States KW - Geobacter KW - contaminant plumes KW - X-ray diffraction data KW - aliphatic hydrocarbons KW - bioavailability KW - iron KW - ground water KW - ferric iron KW - sediments KW - X-ray fluorescence spectra KW - crude oil KW - spectra KW - reduction KW - Beltrami County Minnesota KW - Mossbauer spectra KW - Minnesota KW - experimental studies KW - methane KW - iron minerals KW - clastic sediments KW - pollutants KW - pollution KW - alkanes KW - petroleum products KW - Bemidji Minnesota KW - ferrous iron KW - aquifers KW - case studies KW - organic compounds KW - biogenic processes KW - metals KW - bacteria KW - hydrocarbons KW - SEM data KW - Geothrix KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51730023?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Biogeochemical+transformation+of+Fe+minerals+in+a+petroleum-contaminated+aquifer&rft.au=Zachara%2C+John+M%3BKukkadapu%2C+Ravi+K%3BGassman%2C+Paul+L%3BDohnalkova%2C+Alice+C%3BFredrickson%2C+Jim+K%3BAnderson%2C+Todd&rft.aulast=Zachara&rft.aufirst=John&rft.date=2004-04-01&rft.volume=68&rft.issue=8&rft.spage=1791&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2003.09.022 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 37 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; aquifers; bacteria; Beltrami County Minnesota; Bemidji Minnesota; bioavailability; biogenic processes; case studies; clastic sediments; contaminant plumes; crude oil; experimental studies; ferric iron; ferrous iron; Geobacter; Geothrix; ground water; hydrocarbons; iron; iron minerals; metals; methane; Minnesota; Mossbauer spectra; organic compounds; petroleum products; pollutants; pollution; reduction; sediments; SEM data; spectra; United States; X-ray diffraction data; X-ray fluorescence spectra DO - http://dx.doi.org/10.1016/j.gca.2003.09.022 ER - TY - JOUR T1 - The fall, recovery, and classification of the Park Forest Meteorite AN - 50290718; 2004-056436 AB - On the night of March 26, 2003, a large meteorite broke up and fell upon the south suburbs of Chicago. The name Park Forest, for the village that is at the center of the strewnfield, has been approved by the nomenclature committee of the Meteoritical Society. Satellite data indicate that the bolide traveled from the southwest toward the northeast. The strewnfield has a southeast-northwest trend; however, this is probably due to the effects of strong westerly winds at high altitudes. Its very low (super 56) Co and very high (super 60) Co activities indicate that Park Forest had a preatmospheric mass that was at least approximately 900 kg and could have been as large as approximately 7X10 (super 3) kg, of which only approximately 30 kg have been recovered. The average compositions of olivine and low-Ca pyroxene, Fa (sub 24.7+ or -1.1) and Fs (sub 20.8+ or -0.7) , respectively, and its bulk oxygen isotopic composition, delta (super 18) O = +4.68 per mil, delta (super 17) O = +3.44 per mil, show that Park Forest is an L chondrite. The ferromagnesian minerals are well equilibrated, chondrules are easily recognized, and maskelynite is mostly < or =50 mu m across. Based on these observations, we classify Park Forest as type 5. The meteorite has been strongly shocked, and based on the presence of maskelynite, mosaicism and planar deformation features in olivine, undulatory extinction in pyroxene, and glassy veins, the shock stage is S5. The meteorite is a monomict breccia, consisting of light-colored, angular to rounded clasts in a very dark host. The light and dark lithologies have essentially identical mineral and oxygen isotopic compositions. Their striking difference in appearance is due to the presence of a fine, presence of a fine, pervasive network of sulfide veins in the dark lithology, resulting in very short optical path lengths. The dark lithology probably formed from the light lithology in an impact that formed a sulfide-rich melt and injected it into cracks. JF - Meteoritics & Planetary Science AU - Simon, S B AU - Grossman, L AU - Clayton, R N AU - Mayeda, T K AU - Schwade, J R AU - Sipiera, P P AU - Wacker, J F AU - Wadhwa, M Y1 - 2004/04// PY - 2004 DA - April 2004 SP - 625 EP - 634 PB - Meteoritical Society, Fayetteville, AR VL - 39 IS - 4 SN - 1086-9379, 1086-9379 KW - United States KW - nomenclature KW - ordinary chondrites KW - stony meteorites KW - oxygen KW - isotopes KW - meteorite flux KW - L chondrites KW - stable isotopes KW - meteorites KW - mineral composition KW - Chicago Illinois KW - occurrence KW - chondrites KW - geochemistry KW - Cook County Illinois KW - new meteorites KW - strewn fields KW - Illinois KW - isotope ratios KW - O-18/O-16 KW - veins KW - metamorphism KW - recovery KW - Park Forest Meteorite KW - planar deformation features KW - fragments KW - classification KW - petrography KW - sulfides KW - shock metamorphism KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50290718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=The+fall%2C+recovery%2C+and+classification+of+the+Park+Forest+Meteorite&rft.au=Simon%2C+S+B%3BGrossman%2C+L%3BClayton%2C+R+N%3BMayeda%2C+T+K%3BSchwade%2C+J+R%3BSipiera%2C+P+P%3BWacker%2C+J+F%3BWadhwa%2C+M&rft.aulast=Simon&rft.aufirst=S&rft.date=2004-04-01&rft.volume=39&rft.issue=4&rft.spage=625&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 20 N1 - PubXState - AR N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - Chicago Illinois; chondrites; classification; Cook County Illinois; fragments; geochemistry; Illinois; isotope ratios; isotopes; L chondrites; metamorphism; meteorite flux; meteorites; mineral composition; new meteorites; nomenclature; O-18/O-16; occurrence; ordinary chondrites; oxygen; Park Forest Meteorite; petrography; planar deformation features; recovery; shock metamorphism; stable isotopes; stony meteorites; strewn fields; sulfides; United States; veins ER - TY - JOUR T1 - A comprehensive and systematic approach to developing and documenting conceptual models of contaminant release and migration at the Hanford Site AN - 20395331; 7436364 AB - The U. S. Department of Energy's Richland Operations Office has initiated efforts to adapt and implement the features, events, and processes (FEP) methodology used in scenario development for nuclear waste disposal programs to the environmental management and remediation problems facing the Hanford site. These efforts have shown that modification of the FEPs methodology to incorporate the use of process relationship diagrams (PRD) is effective in facilitating the development of conceptual models and selection of potentially relevant factors (i.e., FEPs) to be incorporated into a specific environmental assessment. In adopting this methodology for Hanford, a master PRD was created to provide a structure to identify these factors and to illustrate the relationships among them. The organizational framework of the master PRD was developed to match the organization of current Hanford site -wide environmental assessment activities and to facilitate screening of the FEPs relevant to the specific assessments needed for the site. JF - Stochastic Environmental Research and Risk Assessment AU - Last, G V AU - Rohay, V J AU - Schelling, F J AU - Bunn, AL AU - Delamare, MA AU - Dirkes, R L AU - Hildebr, R D AU - Morse, J G AU - Napier, BA AU - Riley, R G AU - Soler, L AU - Thorne, P D AD - Pacific Northwest National Laboratory (PNNL), 999, Richland, WA 99352, USA, george.last@pnl.gov Y1 - 2004/04// PY - 2004 DA - Apr 2004 SP - 109 EP - 116 VL - 18 IS - 2 SN - 1436-3240, 1436-3240 KW - Pollution Abstracts KW - Risk assessment KW - Bioremediation KW - USA, Washington, Hanford KW - environmental assessment KW - Nuclear energy KW - Waste disposal KW - Contaminants KW - Environment management KW - USA, Washington, Hanford Site KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20395331?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Stochastic+Environmental+Research+and+Risk+Assessment&rft.atitle=A+comprehensive+and+systematic+approach+to+developing+and+documenting+conceptual+models+of+contaminant+release+and+migration+at+the+Hanford+Site&rft.au=Last%2C+G+V%3BRohay%2C+V+J%3BSchelling%2C+F+J%3BBunn%2C+AL%3BDelamare%2C+MA%3BDirkes%2C+R+L%3BHildebr%2C+R+D%3BMorse%2C+J+G%3BNapier%2C+BA%3BRiley%2C+R+G%3BSoler%2C+L%3BThorne%2C+P+D&rft.aulast=Last&rft.aufirst=G&rft.date=2004-04-01&rft.volume=18&rft.issue=2&rft.spage=109&rft.isbn=&rft.btitle=&rft.title=Stochastic+Environmental+Research+and+Risk+Assessment&rft.issn=14363240&rft_id=info:doi/10.1007%2Fs00477-003-0144-6 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-06-01 N1 - Last updated - 2015-04-01 N1 - SubjectsTermNotLitGenreText - Risk assessment; Bioremediation; Nuclear energy; environmental assessment; Waste disposal; Contaminants; Environment management; USA, Washington, Hanford; USA, Washington, Hanford Site DO - http://dx.doi.org/10.1007/s00477-003-0144-6 ER - TY - BOOK T1 - Microbial and Enzyme Biotechnology: 21st Century Opportunities for Greenhouse Gas Mitigation AN - 20223279; 7180283 AB - Ever-increasing atmospheric concentrations of greenhouse gases (GHG) presents a carbon management challenge of global and century-scale proportions if adverse environmental, economic, and social impacts of climate change are to be avoided. Integrated assessment models suggest that significant technological intervention is needed to transform how we produce and consume energy. Current trends could lead before the end of the century to an atmospheric carbon dioxide (CO sub(2)) burden about twice today's approximately 370 vppm (750 Gt as C). This equates to the need to avoid GHG emissions totaling about 1500 Gt C over the current century if atmospheric concentrations are to be stabilized at a nominal 550 vppm, approximately twice pre-industrial concentrations (280 vppm) (Edmonds and Clarke, this volume). JF - Applications of Biotechnology to Mitigation of Greenhouse Warming. Proceedings of the St. Michaels II Workshop, April 2003 AU - Metting, F B AU - Scott, MJ AU - Benemann, J AU - Greenbaum, E AU - Seibert, M AU - Spormann, A AU - Yukawa, H AU - Houghton, J A2 - Rosenberg, NJ A2 - Metting, FB A2 - Izaurralde, RC (eds) Y1 - 2004/04// PY - 2004 DA - Apr 2004 SP - 22 EP - 136 PB - Battelle Press, 505 King Avenue Columbus OH 43201 USA SN - 1574771418 KW - Pollution Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Meteorological & Geoastrophysical Abstracts; Biotechnology and Bioengineering Abstracts KW - Environmental economics KW - Climatic changes KW - social impact KW - Models KW - mitigation KW - Carbon KW - intervention KW - Economics KW - Climate models KW - Conferences KW - Enzymes KW - Greenhouses KW - Books KW - Energy KW - Global warming KW - Carbon dioxide KW - Greenhouse gases KW - Biotechnology KW - W 30925:Genetic Engineering KW - P 0000:AIR POLLUTION KW - M2 551.583:Variations (551.583) KW - A 01490:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20223279?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Biotechnology+Research+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Metting%2C+F+B%3BScott%2C+MJ%3BBenemann%2C+J%3BGreenbaum%2C+E%3BSeibert%2C+M%3BSpormann%2C+A%3BYukawa%2C+H%3BHoughton%2C+J&rft.aulast=Metting&rft.aufirst=F&rft.date=2004-04-01&rft.volume=&rft.issue=&rft.spage=115&rft.isbn=1574771418&rft.btitle=Microbial+and+Enzyme+Biotechnology%3A+21st+Century+Opportunities+for+Greenhouse+Gas+Mitigation&rft.title=Microbial+and+Enzyme+Biotechnology%3A+21st+Century+Opportunities+for+Greenhouse+Gas+Mitigation&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-01-01 N1 - Last updated - 2015-04-01 ER - TY - BOOK T1 - Bioconversion and Biorefineries of the Future AN - 20221903; 7180282 AB - Although the environmental, economic, and social impacts are still being debated, it is clear that the atmospheric concentrations of greenhouse gases (GHG) are increasing. The atmosphere in 2000 held about 774 Pg (774 billion metric tons) of carbon (C) as carbon dioxide (CO sub(2)), corresponding to an average concentration of 369 parts per million by volume (vppm) (Marland & Boden, 2001). At the present rate of emission, the projected total will double by the end of this century. To achieve the goal of stabilizing the total carbon in the atmosphere at about 550 vppm, it will be necessary to reduce GHG emissions. The USA alone is expected to release 1.8 Pg of carbon in 2010 and 2.1 Pg of carbon in 2020, about 25% of the world total (EIA 2000). To maintain the target carbon dioxide concentration through the end of this century, currently anticipated emissions must be reduced by 1500 Pg C (Edmonds and Clarke, this volume). JF - Applications of Biotechnology to Mitigation of Greenhouse Warming. Proceedings of the St. Michaels II Workshop, April 2003 AU - Lasure, L L AU - Zhang, M A2 - Rosenberg, NJ A2 - Metting, FB A2 - Izaurralde, RC (eds) Y1 - 2004/04// PY - 2004 DA - Apr 2004 SP - 15 EP - 109 PB - Battelle Press, 505 King Avenue Columbus OH 43201 USA SN - 1574771418 KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - Environmental economics KW - social impact KW - Atmosphere KW - Atmospheric pollution by motor vehicles KW - USA KW - mitigation KW - environmental impact assessment KW - Emissions KW - Global warming KW - Carbon dioxide KW - Greenhouse gases KW - Biotechnology KW - P 0000:AIR POLLUTION KW - M2 551.510.3/.4:Physical Properties/Composition (551.510.3/.4) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20221903?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Pollution+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Lasure%2C+L+L%3BZhang%2C+M&rft.aulast=Lasure&rft.aufirst=L&rft.date=2004-04-01&rft.volume=&rft.issue=&rft.spage=95&rft.isbn=1574771418&rft.btitle=Bioconversion+and+Biorefineries+of+the+Future&rft.title=Bioconversion+and+Biorefineries+of+the+Future&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-01-01 N1 - Last updated - 2015-04-01 ER - TY - BOOK T1 - Biotechnology and Climate Change: An Introductory Essay AN - 19455711; 7180278 AB - Global climate change is one of the most critical challenges facing the world in the 21st century. Addressing climate change will involve a portfolio of responses including research to improve scientific understanding of climate change processes, adaptation to climate changes, emissions mitigation, and technology development and deployment. The role of technology is just beginning to be understood. Technology can and will play a major role in addressing the long-term risks of climate change. Technology development, and particularly energy technology development, will shape both the scope of the climate change problem and the cost of mitigation. JF - Applications of Biotechnology to Mitigation of Greenhouse Warming. Proceedings of the St. Michaels II Workshop, April 2003 AU - Edmonds, JA AU - Clarke, J F A2 - Rosenberg, NJ A2 - Metting, FB A2 - Izaurralde, RC (eds) Y1 - 2004/04// PY - 2004 DA - Apr 2004 SP - 16 PB - Battelle Press, 505 King Avenue Columbus OH 43201 USA SN - 1574771418 KW - Meteorological & Geoastrophysical Abstracts; Biotechnology and Bioengineering Abstracts KW - Adaptations KW - Conferences KW - Energy KW - Climate change KW - Climatic changes KW - Global warming KW - Greenhouses KW - M2 551.583:Variations (551.583) KW - W 30970:Book & Conference Notices UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19455711?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Biotechnology+Research+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Edmonds%2C+JA%3BClarke%2C+J+F&rft.aulast=Edmonds&rft.aufirst=JA&rft.date=2004-04-01&rft.volume=&rft.issue=&rft.spage=1&rft.isbn=1574771418&rft.btitle=Biotechnology+and+Climate+Change%3A+An+Introductory+Essay&rft.title=Biotechnology+and+Climate+Change%3A+An+Introductory+Essay&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-01-01 N1 - Last updated - 2015-04-01 ER - TY - JOUR T1 - Catalytic hydrogenation of glutamic acid AN - 888092543; 13858159 AB - Technology to convert biomass into chemical building blocks provides an opportunity to displace fossil fuels and increase the economic viability of biorefineries. Coupling fermentation capability with aqueous-phase catalysis provides novel routes to monomers and chemicals, including those not accessible from petrochemical routes. Glutamic acid provides a platform to numerous compounds through thermochemical approaches including hydrogenation, cyclization, decarboxylation, and deamination. Hydrogenation of amino acids also provides access to chiral compounds with high enantiopurity. This article detals aqueous-phase hydrogenation reactions that we have developed that lead to valuable chemical intermediates from glutamic acid. In addition, super(13)C nuclear magnetic resonance and matrix-assisted laser desorption ionization mass spectral data are presented that provide a mechanistic picture of the reactions. The results show that hydrogenation of glutamic acid has unique characteristics from other amino acids and that paradigms in the literature do not hold up for this transformation. JF - Applied Biochemistry and Biotechnology AU - Holladay, Johnathan E AU - Werpy, Todd A AU - Muzatko, Danielle S AD - Pacific Northwest National Laboratory, MSIN: K2-12, 902 Battelle Boulevard, PO Box 999, 99352, Richland, WA, john.holladay@pnl.gov Y1 - 2004/03// PY - 2004 DA - Mar 2004 SP - 857 EP - 869 PB - Humana Press Inc., 999 Riverview Dr., Ste. 208 Totowa NJ 07512 USA VL - 115 IS - 1-3 SN - 0273-2289, 0273-2289 KW - Biotechnology and Bioengineering Abstracts KW - Transformation KW - Data processing KW - Amino acids KW - Fossil fuels KW - Fermentation KW - Deamination KW - Hydrogenation KW - Biomass KW - Monomers KW - Economics KW - N.M.R. KW - Lasers KW - Glutamic acid KW - Ionization KW - Decarboxylation KW - Catalysis KW - W 30910:Imaging UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/888092543?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Biochemistry+and+Biotechnology&rft.atitle=Catalytic+hydrogenation+of+glutamic+acid&rft.au=Holladay%2C+Johnathan+E%3BWerpy%2C+Todd+A%3BMuzatko%2C+Danielle+S&rft.aulast=Holladay&rft.aufirst=Johnathan&rft.date=2004-03-01&rft.volume=115&rft.issue=1-3&rft.spage=857&rft.isbn=&rft.btitle=&rft.title=Applied+Biochemistry+and+Biotechnology&rft.issn=02732289&rft_id=info:doi/10.1385%2FABAB%3A115%3A1-3%3A0857 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-09-01 N1 - Last updated - 2013-12-04 N1 - SubjectsTermNotLitGenreText - Transformation; Amino acids; Data processing; Fossil fuels; Fermentation; Deamination; Hydrogenation; Biomass; Monomers; Economics; Lasers; N.M.R.; Glutamic acid; Ionization; Decarboxylation; Catalysis DO - http://dx.doi.org/10.1385/ABAB:115:1-3:0857 ER - TY - JOUR T1 - The role of the calcium-sensing receptor in cancer. AN - 72026102; 15200153 AB - The extracellular calcium-sensing receptor (CaR) is a versatile sensor of small, polycationic molecules ranging from Ca2+ and Mg2+ through polyarginine, spermine, and neomycin. The sensitivity of the CaR to changes in extracellular Ca2+ over the range of 0.05-5 mM positions the CaR as a key mediator of cellular responses to physiologically relevant changes in extracellular Ca2+. For many cell types, including intestinal epithelial cells, breast epithelial cells, keratinocytes, and ovarian surface epithelial cells, changes in extracellular Ca2+ concentration over this range can switch the cellular behaviour from proliferation to terminal differentiation or quiescence. As cancer is predominantly a disease of disordered balance between proliferation, differentiation, and apoptosis, disruptions in the function of the CaR could contribute to the progression of neoplastic disease. Loss of the growth suppressing effects of elevated extracellular Ca2+ have been demonstrated in parathyroid hyperplasias and in colon carcinoma, and have been correlated with changes in the level of CaR expression. Activation of the CaR has also been linked to increased expression and secretion of PTHrP (parathyroid hormone-related peptide), a primary causal factor in hypercalcemia of malignancy and a contributor to metastatic processes involving bone. Although mutation of the CaR does not appear to be an early event in carcinogenesis, loss or upregulation of normal CaR function can contribute to several aspects of neoplastic progression, so that therapeutic strategies directed at the CaR could potentially serve a supportive function in cancer management. JF - Cell calcium AU - Rodland, Karin D AD - Pacific Northwest National Laboratory, Biological Sciences Division, Richland, WA 99352, USA. Y1 - 2004/03// PY - 2004 DA - March 2004 SP - 291 EP - 295 VL - 35 IS - 3 SN - 0143-4160, 0143-4160 KW - Parathyroid Hormone-Related Protein KW - 0 KW - Receptors, Calcium-Sensing KW - Calcium KW - SY7Q814VUP KW - Index Medicus KW - Breast Neoplasms -- genetics KW - Ovarian Neoplasms -- metabolism KW - Colonic Neoplasms -- genetics KW - Colonic Neoplasms -- physiopathology KW - Breast Neoplasms -- physiopathology KW - Ovarian Neoplasms -- genetics KW - Humans KW - Breast Neoplasms -- metabolism KW - Homeostasis KW - Ovarian Neoplasms -- physiopathology KW - Calcium -- metabolism KW - Gene Expression Regulation, Neoplastic KW - Colonic Neoplasms -- metabolism KW - Parathyroid Hormone-Related Protein -- secretion KW - Female KW - Receptors, Calcium-Sensing -- physiology KW - Receptors, Calcium-Sensing -- genetics KW - Neoplasms -- physiopathology KW - Neoplasms -- genetics KW - Neoplasms -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72026102?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Cell+calcium&rft.atitle=The+role+of+the+calcium-sensing+receptor+in+cancer.&rft.au=Rodland%2C+Karin+D&rft.aulast=Rodland&rft.aufirst=Karin&rft.date=2004-03-01&rft.volume=35&rft.issue=3&rft.spage=291&rft.isbn=&rft.btitle=&rft.title=Cell+calcium&rft.issn=01434160&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-07-13 N1 - Date created - 2004-06-17 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Survival Estimates for Juvenile Fish Subjected to a Laboratory-Generated Shear Environment AN - 17763384; 6049239 AB - Juvenile rainbow trout Oncorhynchus mykiss and steelhead (anadromous rainbow trout), fall (age-0 and age-1) and spring Chinook salmon O. tshawytscha, and American shad Alosa sapidissima were exposed to shear environments in the laboratory to establish injury-mortality thresholds based on estimates of strain rate. Fish were exposed to a submerged jet having exit velocities of 0 to 21.3 m/s, providing estimated exposure strain rates up to 1,185/s. Turbulence intensity in the area of the jet where fish were subjected to shear was minimal, varying from 3% to 6% of the estimated exposure strain rate. Injuries and mortalities increased for all species of fish at strain rates greater than 495/s. American shad were the most susceptible to injury after being subjected headfirst to a shear environment, while steelhead and rainbow trout were the most resistant. There was no apparent size-related trend in susceptibility to high shear except that age-0 fall Chinook salmon were more resistant to shear environments than age-1 fall Chinook salmon. All groups of test fish exposed headfirst to high-shear environments had higher injury- mortality rates than fish introduced tailfirst at similar strain rates. These results document the relationship between fish injury and a fluid force present at hydroelectric facilities and provide biological specifications for improving fish passage and survival. JF - Transactions of the American Fisheries Society AU - Neitzel, DA AU - Dauble, D D AU - Richmond, M C AU - Guensch, G R AU - Mueller, R P AU - Abernethy, C S AU - Amidan, Brett AD - Pacific Northwest National Laboratory, Post Office Box 999, Richland, Washington 99352, USA Y1 - 2004/03// PY - 2004 DA - March 2004 SP - 447 EP - 454 PB - American Fisheries Society, 5410 Grosvenor Ln. Ste. 110 Bethesda MD 20814-2199 USA VL - 133 IS - 2 SN - 0002-8487, 0002-8487 KW - American shad KW - Chinook salmon KW - Rainbow trout KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Shear KW - Mortality KW - Biological stress KW - Juveniles KW - Injuries KW - Anadromous species KW - Survival KW - Oncorhynchus mykiss KW - Strains KW - Oncorhynchus tshawytscha KW - Alosa sapidissima KW - Fishery management KW - Fluid dynamics KW - Turbulence KW - Mortality causes KW - D 04700:Management KW - Q1 08346:Physiology, biochemistry, biophysics KW - Q5 08504:Effects on organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17763384?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=Survival+Estimates+for+Juvenile+Fish+Subjected+to+a+Laboratory-Generated+Shear+Environment&rft.au=Neitzel%2C+DA%3BDauble%2C+D+D%3BRichmond%2C+M+C%3BGuensch%2C+G+R%3BMueller%2C+R+P%3BAbernethy%2C+C+S%3BAmidan%2C+Brett&rft.aulast=Neitzel&rft.aufirst=DA&rft.date=2004-03-01&rft.volume=133&rft.issue=2&rft.spage=447&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/10.1577%2F02-021 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Shear; Juveniles; Biological stress; Injuries; Anadromous species; Fluid dynamics; Survival; Strains; Mortality causes; Mortality; Fishery management; Turbulence; Alosa sapidissima; Oncorhynchus mykiss; Oncorhynchus tshawytscha DO - http://dx.doi.org/10.1577/02-021 ER - TY - JOUR T1 - Microscale distribution of cesium sorbed to biotite and muscovite. AN - 71696527; 14998013 AB - Individual 1-3 mm biotite and muscovite clasts from Hanford sediment were contacted with 0.08 M CsNO3. They were examined using electron or X-ray microprobe methods, as intact specimens or sectioned perpendicular to their basal planes. Cs+ was observed to preferentially sorb to mica edges, steps on mica surfaces, or fractured regions. The localization of Cs conformed to hypothesized strong binding to frayed edge sites in preference to sites on basal planes. In section, Cs+ was found to penetrate the mica interior, forming discrete zones of concentration, particularly in muscovite. In biotite, Cs was more abundant, permeating the clasts, but also forming discrete zones of higher concentration. Concentrated Cs on both clast edges and within clast interiors corresponded to microscopic but relatively extensive zones where K was depleted. The localization of sorbed Cs in areas where K was depleted suggested that weathering reactions had caused the formation of frayed edge sites within the micas. Cs+ accessed crystal interiors by diffusion along channels following crystal defects, cracks, or partings where pore fluids had previously migrated to form the interior alteration zones. On the nanometer scale, areas with localized Cs were disrupted, confirming that frayed edge sites were developed in clast interiors. JF - Environmental science & technology AU - McKinley, James P AU - Zachara, John M AU - Heald, Steven M AU - Dohnalkova, Alice AU - Newville, Matthew G AU - Sutton, Steve R AD - Pacific Northwest National Laboratory, Richland, Washington 99352, USA. james.mckinley@pnl.gov Y1 - 2004/02/15/ PY - 2004 DA - 2004 Feb 15 SP - 1017 EP - 1023 VL - 38 IS - 4 SN - 0013-936X, 0013-936X KW - Aluminum Silicates KW - 0 KW - Ferrous Compounds KW - Soil Pollutants, Radioactive KW - Water Pollutants, Radioactive KW - biotite KW - 1302-27-8 KW - Cesium KW - 1KSV9V4Y4I KW - Index Medicus KW - Environmental Monitoring KW - Geologic Sediments -- chemistry KW - Porosity KW - Adsorption KW - Cesium -- analysis KW - Aluminum Silicates -- chemistry KW - Water Pollutants, Radioactive -- analysis KW - Ferrous Compounds -- chemistry KW - Soil Pollutants, Radioactive -- analysis KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71696527?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Microscale+distribution+of+cesium+sorbed+to+biotite+and+muscovite.&rft.au=McKinley%2C+James+P%3BZachara%2C+John+M%3BHeald%2C+Steven+M%3BDohnalkova%2C+Alice%3BNewville%2C+Matthew+G%3BSutton%2C+Steve+R&rft.aulast=McKinley&rft.aufirst=James&rft.date=2004-02-15&rft.volume=38&rft.issue=4&rft.spage=1017&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-04-21 N1 - Date created - 2004-03-04 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Glucose Biosensors Based on Carbon Nanotube Nanoelectrode Ensembles AN - 17679329; 5980427 AB - This paper describes the development of glucose biosensors based on carbon nanotube (CNT) nanoelectrode ensembles (NEEs) for the selective detection of glucose. Glucose oxidase was covalently immobilized on CNT NEEs via carbodiimide chemistry by forming amide linkages between their amine residues and carboxylic acid groups on the CNT tips. The catalytic reduction of hydrogen peroxide liberated from the enzymatic reaction of glucose oxidase upon the glucose and oxygen on CNT NEEs leads to the selective detection of glucose. The biosensor effectively performs a selective electrochemical analysis of glucose in the presence of common interferents (e.g., acetaminophen, uric and ascorbic acids), avoiding the generation of an overlapping signal from such interferers. Such an operation eliminates the need for permselective membrane barriers or artificial electron mediators, thus greatly simplifying the sensor design and fabrication. JF - Nano Letters AU - Lin, Yuehe AU - Lu, Fang AU - Tu, Yi AU - Ren, Zhifeng AD - Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA 99352, USA Y1 - 2004/02/11/ PY - 2004 DA - 2004 Feb 11 SP - 191 EP - 195 VL - 4 IS - 2 SN - 1530-6984, 1530-6984 KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - W4 230:Biosensors, Bioelectronics & Bioindicators KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17679329?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nano+Letters&rft.atitle=Glucose+Biosensors+Based+on+Carbon+Nanotube+Nanoelectrode+Ensembles&rft.au=Lin%2C+Yuehe%3BLu%2C+Fang%3BTu%2C+Yi%3BRen%2C+Zhifeng&rft.aulast=Lin&rft.aufirst=Yuehe&rft.date=2004-02-11&rft.volume=4&rft.issue=2&rft.spage=191&rft.isbn=&rft.btitle=&rft.title=Nano+Letters&rft.issn=15306984&rft_id=info:doi/10.1021%2Fn10347233 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-04-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1021/n10347233 ER - TY - JOUR T1 - Geochemical evolution of highly alkaline and saline tank waste plumes during seepage through vadose zone sediments AN - 51727923; 2005-031865 AB - Leakage of highly saline and alkaline radioactive waste from storage tanks into underlying sediments is a serious environmental problem at the Hanford Site in Washington State. This study focuses on geochemical evolution of tank waste plumes resulting from interactions between the waste solution and sediment. A synthetic tank waste solution was infused into unsaturated Hanford sediment columns (0.2, 0.6, and 2 m) maintained at 70 degrees C to simulate the field contamination process. Spatially and temporally resolved geochemical profiles of the waste plume were obtained. Thorough OH (super -) neutralization (from an initial pH 14 down to 6.3) was observed. Three broad zones of pore solutions were identified to categorize the dominant geochemical reactions: the silicate dissolution zone (pH>10), pH-neutralized zone (pH 10 to 6.5), and displaced native sediment pore water (pH 6.5 to 8). Elevated concentrations of Si, Fe, and K in plume fluids and their depleted concentrations in plume sediments reflected dissolution of primary minerals within the silicate dissolution zone. The very high Na concentrations in the waste solution resulted in rapid and complete cation exchange, reflected in high concentrations of Ca and Mg at the plume front. The plume-sediment profiles also showed deposition of hydrated solids and carbonates. Fair correspondence was obtained between these results and analyses of field borehole samples from a waste plume at the Hanford Site. Results of this study provide a well-defined framework for understanding waste plumes in the more complex field setting and for understanding geochemical factors controlling transport of contaminant species carried in waste solutions that leaked from single-shell storage tanks in the past. JF - Geochimica et Cosmochimica Acta AU - Wan, Jiamin AU - Tokunaga, Tetsu K AU - Larsen, Joern T AU - Serne, R Jeff Y1 - 2004/02// PY - 2004 DA - February 2004 SP - 491 EP - 502 PB - Pergamon, Oxford VL - 68 IS - 3 SN - 0016-7037, 0016-7037 KW - United States KW - contaminant plumes KW - unsaturated zone KW - simulation KW - seepage KW - radioactive waste KW - sediments KW - geochemistry KW - synthetic materials KW - saline composition KW - pH KW - soils KW - experimental studies KW - Washington KW - underground storage KW - pollutants KW - pollution KW - Hanford Site KW - hydrochemistry KW - alkalic composition KW - underground installations KW - theoretical models KW - waste disposal KW - pore water KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51727923?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Geochemical+evolution+of+highly+alkaline+and+saline+tank+waste+plumes+during+seepage+through+vadose+zone+sediments&rft.au=Wan%2C+Jiamin%3BTokunaga%2C+Tetsu+K%3BLarsen%2C+Joern+T%3BSerne%2C+R+Jeff&rft.aulast=Wan&rft.aufirst=Jiamin&rft.date=2004-02-01&rft.volume=68&rft.issue=3&rft.spage=491&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2803%2900482-4 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 20 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkalic composition; contaminant plumes; experimental studies; geochemistry; Hanford Site; hydrochemistry; pH; pollutants; pollution; pore water; radioactive waste; saline composition; sediments; seepage; simulation; soils; synthetic materials; theoretical models; underground installations; underground storage; United States; unsaturated zone; Washington; waste disposal DO - http://dx.doi.org/10.1016/S0016-7037(03)00482-4 ER - TY - JOUR T1 - Role of competitive cation exchange on chromatographic displacement of cesium in the vadose zone beneath the Hanford S/SX tank farm AN - 51127255; 2005-061711 AB - Migration of radionuclides under the SX-tank farm at the Hanford nuclear waste complex involves interaction of variably water saturated sediments with concentrated NaOH-NaNO (sub 3) -NaNO (sub 2) solutions that have leaked from the tanks. Constant Kd models for describing radionuclide retardation are not valid under these conditions because of strong competition for sorption sites by abundant Na+ ions, and because of dramatically changing solution compositions with time as the highly concentrated tank fluid becomes diluted as it mixes with infiltrating rainwater. A mechanistic multicomponent sorption model is required that can account for effects of competition and spatially and temporally variable solution compositions. To investigate the influence of the high ionic strength tank fluids on Cs (super +) migration, numerical calculations are performed using the multiphase-multicomponent reactive transport code FLOTRAN. The computer model describes reactive transport in nonisothermal, variably saturated porous media including both liquid and gas phases. Pitzer activity coefficient corrections are used to describe the high ionic strength solutions. The calculations take into account multicomponent cation exchange based on measured selectivity coefficients specific to the Hanford sediments. Solution composition data obtained from Well 299-W23-19, documenting a moderately concentrated leak from the SX-115 tank, are used to calibrate the model. In addition to exchange of cations Na (super +) , K (super +) , Ca (super 2+) , and Cs (super +) , aqueous complexing and a kinetic description of precipitation and dissolution of calcite are also included in the calculations. The fitted infiltration rate of 0.08 m yr-1, and fitted cation exchange capacity of 0.05 mol kg-1 are consistent with measured values for the Hanford sediments. A sensitivity analysis is performed for Na (super +) concentrations ranging from 5 to 20 m to investigate the mobility of Cs (super +) interacting with a highly concentrated background electrolyte solution believed to have been released from the SX-108/SX-109 tanks. The calculations indicate that during the initial period of the tank leak when Cs (super +) is associated with high Na (super +) concentrations, there is little retardation of the Cs (super +) plume. However, as time increases the Na (super +) and Cs (super +) profiles become chromatographically separated due to differences in their selectivity coefficients and dilution of the tank leak plume with infiltrating rainwater. Eventually the two species become separated spatially, and Cs (super +) becomes highly retarded and remains essentially fixed in the sediments by cation exchange. For the 20 m Na (super +) simulated tank leak, the sorbed Cs (super +) profile is in close agreement with data obtained from the slant borehole and consistent with the estimated tank supernatant concentration. The simulations suggest that natural attenuation processes should result in strong fixation of Cs (super +) in the vadose zone in spite of the release of high Na (super +) concentrations during a tank leak event. JF - Vadose Zone Journal AU - Lichtner, Peter C AU - Yabusaki, Steve AU - Pruess, Karsten AU - Steefel, Carl I Y1 - 2004/02// PY - 2004 DA - February 2004 SP - 203 EP - 219 PB - Soil Science Society of America, Madison, WI VL - 3 IS - 1 KW - United States KW - solute transport KW - calcium KW - isotopes KW - one-dimensional models KW - complexing KW - data processing KW - unsaturated zone KW - absorption KW - radioactive isotopes KW - chemical reactions KW - cesium KW - digital simulation KW - sediments KW - natural attenuation KW - water pollution KW - soils KW - leaking underground storage tanks KW - alkaline earth metals KW - Washington KW - two-phase models KW - cation exchange capacity KW - three-dimensional models KW - FLOTRAN KW - alkali metals KW - pollution KW - Hanford Site KW - equations KW - sodium KW - two-dimensional models KW - Cs-137 KW - soil pollution KW - metals KW - potassium KW - multiphase flow KW - Columbia Plateau KW - mobilization KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51127255?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Role+of+competitive+cation+exchange+on+chromatographic+displacement+of+cesium+in+the+vadose+zone+beneath+the+Hanford+S%2FSX+tank+farm&rft.au=Lichtner%2C+Peter+C%3BYabusaki%2C+Steve%3BPruess%2C+Karsten%3BSteefel%2C+Carl+I&rft.aulast=Lichtner&rft.aufirst=Peter&rft.date=2004-02-01&rft.volume=3&rft.issue=1&rft.spage=203&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 26 N1 - PubXState - WI N1 - Document feature - illus. incl. 6 tables N1 - SuppNotes - Includes appendix; accessed on January 4, 2005 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absorption; alkali metals; alkaline earth metals; calcium; cation exchange capacity; cesium; chemical reactions; Columbia Plateau; complexing; Cs-137; data processing; digital simulation; equations; FLOTRAN; Hanford Site; isotopes; leaking underground storage tanks; metals; mobilization; multiphase flow; natural attenuation; one-dimensional models; pollution; potassium; radioactive isotopes; sediments; sodium; soil pollution; soils; solute transport; three-dimensional models; two-dimensional models; two-phase models; United States; unsaturated zone; Washington; water pollution ER - TY - JOUR T1 - A cation exchange model to describe Cs super(+) sorption at high ionic strength in subsurface sediments at Hanford site, USA AN - 19399615; 5810112 AB - A theoretical and experimental study of cation exchange in high ionic strength electrolytes was performed using pristine subsurface sediments from the U.S. Department of Energy Hanford site. These sediments are representative of the site contaminated sediments impacted by release of high level waste (HLW) solutions containing super(137)Cs super(+) in NaNO sub(3) brine. The binary exchange behavior of Cs super(+)-Na super(+), Cs super(+)-K super(+), and Na super(+)-K super(+) was measured over a range in electrolyte concentration. Vanselow selectivity coefficients (K sub(v)) that were calculated from the experimental data using Pitzer model ion activity corrections for aqueous species showed monotonic increases with increasing electrolyte concentrations. The influence of electrolyte concentration was greater on the exchange of Na super(+)-Cs super(+) than K super(+)- Cs super(+), an observation consistent with the differences in ion hydration energy of the exchanging cations. A previously developed two-site ion exchange model [Geochimica et Cosmochimica Acta 66 (2002) 193] was modified to include solvent (water) activity changes in the exchanger phase through application of the Gibbs-Duhem equation. This water activity-corrected model well described the ionic strength effect on binary Cs super(+) exchange, and was extended to the ternary exchange system of Cs super(+)-Na super(+)-K super(+) on the pristine sediment. The model was also used to predict super(137)Cs super(+) distribution between sediment and aqueous phase (K sub(d)) beneath a leaked HLW tank in Hanford's S-SX tank using the analytical aqueous data from the field and the binary ion exchange coefficients for the pristine sediment. The K sub(d) predictions closely followed the trend in the field data and were improved by consideration of water activity effects that were considerable in certain regions of the vadose zone plume. JF - Journal of Contaminant Hydrology AU - Liu, C AU - Zachara, J M AU - Smith, S C AD - Environmental Dynamics/Simulation, Pacific Northwest National Laboratory, P.O. Box 999, MSIN K8-96, Richland, WA 99352, USA, chongxuan.liu@pnl.gov Y1 - 2004/02// PY - 2004 DA - Feb 2004 SP - 217 EP - 238 PB - Elsevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl/] VL - 68 IS - 3-4 SN - 0169-7722, 0169-7722 KW - USA, Washington, Hanford Site KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts; Pollution Abstracts; Water Resources Abstracts KW - Hydration KW - Theoretical Analysis KW - Cesium KW - Caesium KW - Waste Dumps KW - Underground disposal KW - Groundwater Pollution KW - Cesium Radioisotopes KW - Distribution KW - Ion Exchange KW - Sediment Contamination KW - Cationic KW - Ion exchange KW - Cation Exchange KW - Experimental Data KW - Radioactive Wastes KW - Sorption KW - Sediment pollution KW - Electrolytes KW - Fate of Pollutants KW - Geochemistry KW - Radioactive wastes KW - Environmental impact KW - Solvents KW - Wastes KW - Model Studies KW - USA KW - Underground storage tanks KW - Cations KW - USA, Washington, Hanford KW - Brines KW - Q5 08503:Characteristics, behavior and fate KW - P 8000:RADIATION KW - SW 3020:Sources and fate of pollution KW - Q2 09161:General KW - AQ 00005:Underground Services and Water Use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19399615?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Contaminant+Hydrology&rft.atitle=A+cation+exchange+model+to+describe+Cs+super%28%2B%29+sorption+at+high+ionic+strength+in+subsurface+sediments+at+Hanford+site%2C+USA&rft.au=Liu%2C+C%3BZachara%2C+J+M%3BSmith%2C+S+C&rft.aulast=Liu&rft.aufirst=C&rft.date=2004-02-01&rft.volume=68&rft.issue=3-4&rft.spage=217&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/10.1016%2FS0169-7722%2803%2900143-8 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-01-01 N1 - Last updated - 2014-05-05 N1 - SubjectsTermNotLitGenreText - Hydration; Sediment pollution; Electrolytes; Cations; Wastes; Solvents; Environmental impact; Ion exchange; Brines; Sorption; Underground storage tanks; Cesium; Geochemistry; Radioactive wastes; Radioactive Wastes; Caesium; Ion Exchange; Underground disposal; Waste Dumps; Cationic; Sediment Contamination; Theoretical Analysis; Experimental Data; Fate of Pollutants; Distribution; Cesium Radioisotopes; Groundwater Pollution; Model Studies; Cation Exchange; USA; USA, Washington, Hanford DO - http://dx.doi.org/10.1016/S0169-7722(03)00143-8 ER - TY - JOUR T1 - FTICR mass spectrometry for qualitative and quantitative bioanalyses AN - 17888894; 5856434 AB - Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS) is playing an increasing role in the characterization of cellular systems owing to its capabilities for providing higher confidence of identification, increased dynamic range and sensitivity unmatched by other MS platforms. Particularly in proteomics, where global and quantitative approaches are essential, the attributes of FTICR-MS are poised to make significant contributions. Recent advances in the field that have particular importance for proteomic applications include the use of high-performance micro-capillary column separation techniques coupled to FTICR, as well as methods that improve protein identification, sensitivity, dynamic range and throughput. JF - Current Opinion in Biotechnology AU - Page, J S AU - Masselon, C D AU - Smith, R D AD - Biological Sciences Division and Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, PO Box 999, Richland, WA 99352, USA, rds@pnl.gov Y1 - 2004/02// PY - 2004 DA - Feb 2004 SP - 3 EP - 11 PB - Elsevier Science Ltd., The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:usinfo-f@elsevier.com], [URL:http://www.elsevier.nl] VL - 15 IS - 1 SN - 0958-1669, 0958-1669 KW - Fourier transform infrared spectroscopy KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts; Medical and Pharmaceutical Biotechnology Abstracts KW - Reviews KW - Proteins KW - Separation techniques KW - Mass spectroscopy KW - W4 130:General Biomedical Engineering: Tools & Techniques KW - W 30965:Miscellaneous, Reviews KW - W3 33250:Methods: Others UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17888894?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Current+Opinion+in+Biotechnology&rft.atitle=FTICR+mass+spectrometry+for+qualitative+and+quantitative+bioanalyses&rft.au=Page%2C+J+S%3BMasselon%2C+C+D%3BSmith%2C+R+D&rft.aulast=Page&rft.aufirst=J&rft.date=2004-02-01&rft.volume=15&rft.issue=1&rft.spage=3&rft.isbn=&rft.btitle=&rft.title=Current+Opinion+in+Biotechnology&rft.issn=09581669&rft_id=info:doi/10.1016%2Fj.copbio.2004.01.002 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Reviews; Mass spectroscopy; Separation techniques; Proteins DO - http://dx.doi.org/10.1016/j.copbio.2004.01.002 ER -