FN Thomson Reuters Web of Science™ VR 1.0 PT J AU MORALES, CF STROLLO, PJ AF MORALES, CF STROLLO, PJ TI NONCARDIOGENIC PULMONARY-EDEMA ASSOCIATED WITH ACCIDENTAL HYPOTHERMIA SO CHEST LA English DT Article AB The pulmonary system may be significantly affected by hypothermia. The association between NCPE and hypothermia is controversial. A 59-year-old man with mild hypothermia presented with NCPE after passive external rewarming following accidental immersion in water. The patient's course was uneventful after 48 h, allowing immediate withdrawal of assisted ventilation and supplemental oxygen. RP MORALES, CF (reprint author), WILFORD HALL USAF MED CTR,DEPT CRIT CARE & PULM MED,SAN ANTONIO,TX, USA. NR 11 TC 6 Z9 6 U1 0 U2 0 PU AMER COLL CHEST PHYSICIANS PI NORTHBROOK PA 3300 DUNDEE ROAD, NORTHBROOK, IL 60062-2348 SN 0012-3692 J9 CHEST JI Chest PD MAR PY 1993 VL 103 IS 3 BP 971 EP 973 DI 10.1378/chest.103.3.971 PG 3 WC Critical Care Medicine; Respiratory System SC General & Internal Medicine; Respiratory System GA KQ382 UT WOS:A1993KQ38200072 PM 8449113 ER PT J AU NISHINO, SF SPAIN, JC AF NISHINO, SF SPAIN, JC TI CELL DENSITY-DEPENDENT ADAPTATION OF PSEUDOMONAS-PUTIDA TO BIODEGRADATION OF P-NITROPHENOL SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID MICROBIAL COMMUNITIES; ACCLIMATION PERIOD; DEGRADATION; WATER; 1,4-DICHLOROBENZENE; MINERALIZATION; ENVIRONMENTS; METABOLISM; CHEMICALS; INOCULUM AB A Pseudomonas putida isolated from a natural microbial community adapted to p-nitrophenol (PNP) underwent an extended lag period in pure cultures exposed to PNP. The length of the lag was inversely proportional to the cell density. Length of the lag period was not affected by PNP concentrations over a range of 15-5000 mug L-1. In experiments where the total population was held constant while the volume of the culture fluid was varied, the more dilute suspensions adapted much more slowly. This result suggested that a ''factor'' must accumulate in the culture before initiation of PNP degradation. Hydroquinone, an early intermediate in PNP degradation, accumulated transiently in culture fluid during adaptation of the P. putida to PNP. When hydroquinone was added to cultures along with PNP, the length of the lag period was reduced. Addition of hydroquinone did not shorten lag periods at cell concentrations below 10(5) cfu mL-1. This suggests that hydroquinone is not the actual inducer or effector but that it is converted by the cells to the active component. We propose that the lag period before biodegradation of PNP is caused by delayed induction of enzymes. Induction is dependent upon the accumulation of hydroquinone or a factor whose release is stimulated by hydroquinone. C1 USAF,CIVIL ENGN SUPPORT AGCY,139 BARNES DR,TYNDALL AFB,FL 32403. NR 32 TC 43 Z9 46 U1 1 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0013-936X J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD MAR PY 1993 VL 27 IS 3 BP 489 EP 494 DI 10.1021/es00040a006 PG 6 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA KP133 UT WOS:A1993KP13300012 ER PT J AU SUDAN, DL MELLINGER, JD MILLER, SF PETT, JL AF SUDAN, DL MELLINGER, JD MILLER, SF PETT, JL TI COLONOSCOPIC INDIRECT LYMPHANGIOGRAPHY SO GASTROINTESTINAL ENDOSCOPY LA English DT Note ID RECTAL-CANCER; RECURRENCE; LYMPHOSCINTIGRAPHY; LYMPHOGRAPHY; MANAGEMENT; CARCINOMA C1 USAF,SGHS,DEPT SURG,WRIGHT PATTERSON AFB,OH 45433. WRIGHT STATE UNIV,SCH MED,DEPT SURG,DAYTON,OH 45435. WRIGHT STATE UNIV,SCH MED,DEPT PATHOL,DAYTON,OH 45435. NR 16 TC 1 Z9 1 U1 0 U2 1 PU MOSBY-YEAR BOOK INC PI ST LOUIS PA 11830 WESTLINE INDUSTRIAL DR, ST LOUIS, MO 63146-3318 SN 0016-5107 J9 GASTROINTEST ENDOSC JI Gastrointest. Endosc. PD MAR-APR PY 1993 VL 39 IS 2 BP 179 EP 181 DI 10.1016/S0016-5107(93)70063-2 PG 3 WC Gastroenterology & Hepatology SC Gastroenterology & Hepatology GA LA057 UT WOS:A1993LA05700015 PM 8388346 ER PT J AU KUNDROTAS, L WOLFE, P AF KUNDROTAS, L WOLFE, P TI WATERMELON IN THE COLON - THE REAL THING SO GASTROINTESTINAL ENDOSCOPY LA English DT Letter RP KUNDROTAS, L (reprint author), WILFORD HALL USAF MED CTR,DEPT GASTROENTEROL,LACKLAND AFB,TX 78236, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU MOSBY-YEAR BOOK INC PI ST LOUIS PA 11830 WESTLINE INDUSTRIAL DR, ST LOUIS, MO 63146-3318 SN 0016-5107 J9 GASTROINTEST ENDOSC JI Gastrointest. Endosc. PD MAR-APR PY 1993 VL 39 IS 2 BP 216 EP 217 DI 10.1016/S0016-5107(93)70088-7 PG 2 WC Gastroenterology & Hepatology SC Gastroenterology & Hepatology GA LA057 UT WOS:A1993LA05700040 PM 8495858 ER PT J AU LANIER, JO BOONE, C AF LANIER, JO BOONE, C TI RESTRUCTURING MILITARY HEALTH-CARE - THE WINDS OF CHANGE BLOW STRONGER SO HOSPITAL & HEALTH SERVICES ADMINISTRATION LA English DT Article AB The Military Health Services System is an enormously complex enterprise, consisting of more than 400,000 personnel in the active, reserve, and civilian workforce, operating 148 hospitals and over 800 medical and dental clinics worldwide, and serving nearly 9 million beneficiaries. Expenditures on military health care activities will exceed $15 billion in 1993. Yet many people in leadership positions in government-both inside and outside the Department of Defense-question whether the current organization of the Military Health Services System is appropriate to accomplish the Department's medical missions. Some insiders have observed that having three military medical services is having two too many-that a single ''purple'' medical service, or at least a single management structure such as a Defense Health Agency, would better meet military mission requirements as the Defense Department undergoes post-Cold War downsizing. One of the most pressing challenges facing military health care managers is how to best organize resources to provide timely access to quality care and achieve economies at a time when civilian health care is itself in turmoil. This article provides a long-awaited update on the spirited debate over the need to reorganize the Military Health Services System-and the prescriptions ordered so far to cure the system's perceived organizational ills. C1 USAF,FACHE,OASDHA,PENTAGON,ROOM 3E346,WASHINGTON,DC 20301. VIRGINIA COMMONWEALTH UNIV,MED COLL VIRGINIA,DEPT PREVENT & COMMUNITY MED,RICHMOND,VA 23298. NR 12 TC 2 Z9 2 U1 0 U2 0 PU AMER COLL HEALTHCARE EXEC HEALTH ADMINISTRATION PRESS PI CHICAGO PA ONE NORTH FRANKLIN ST SUITE 1700, CHICAGO, IL 60606 SN 8750-3735 J9 HOSP HEALTH SERV ADM JI Hosp. Health Serv. Adm. PD SPR PY 1993 VL 38 IS 1 BP 121 EP 132 PG 12 WC Health Policy & Services SC Health Care Sciences & Services GA KM849 UT WOS:A1993KM84900009 PM 10127290 ER PT J AU MARTINEZ, MJ SCHUERMEYER, FL STUTZ, CE AF MARTINEZ, MJ SCHUERMEYER, FL STUTZ, CE TI GAASXSB1-X/INYAL1-YAS P-CHANNEL HETEROSTRUCTURE FET WITH HIGH TRANSCONDUCTANCE AND LOW GATE LEAKAGE CURRENT SO IEEE ELECTRON DEVICE LETTERS LA English DT Article ID BAND AB We report the first known p-channel GaAsxSb1-x/InyAl1-yAs HFET's on InP. The devices, using a strained-layer GaAsxSb1-x channel, have achieved extrinsic transconductances of 40 mS/mm and intrinsic transconductances of 100 mS/mm. In addition to high transconductance, the devices exhibit excellent pinchoff and demonstrate a record gate turn-on voltage of -3 V as a result of extremely low gate leakage currents, making them exceptional candidates for complementary technologies. These outstanding gate characteristics are attributed to the valence band-edge discontinuity of 0.64 eV. C1 UNIV ARIZONA,DEPT ELECT & COMP ENGN,TUCSON,AZ 85721. RP MARTINEZ, MJ (reprint author), WRIGHT LAB,SOLID STATE ELECTR DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433, USA. NR 8 TC 6 Z9 6 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0741-3106 J9 IEEE ELECTR DEVICE L JI IEEE Electron Device Lett. PD MAR PY 1993 VL 14 IS 3 BP 126 EP 128 DI 10.1109/55.215133 PG 3 WC Engineering, Electrical & Electronic SC Engineering GA KN764 UT WOS:A1993KN76400011 ER PT J AU Oates, JH Shin, RT Oates, DE Tsuk, MJ Nguyen, PP AF Oates, John H. Shin, Robert T. Oates, Daniel E. Tsuk, Michael J. Nguyen, Paul P. TI A Nonlinear Transmission Line Model for Superconducting Stripline Resonators SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article AB A nonlinear transmission line model is used to explain the nonlinear frequency response at high input power levels of stripline resonators fabricated with superconducting NbN and YBa2Cu3O7-x thin films. The resonator is modeled as a transmission line with a nonlinear inductance and resistance. The inductor flux and resistor voltage drop are assumed to be odd polynomial functions of the transmission line current, and the polynomial coefficients are adjusted to match the measured data. Excellent agreement is found between the measured and calculated results. C1 [Oates, John H.; Shin, Robert T.] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA. [Oates, John H.; Shin, Robert T.] MIT, Elect Res Lab, Cambridge, MA 02139 USA. [Oates, Daniel E.] MIT, Lincoln Lab, Lexington, MA 02173 USA. [Tsuk, Michael J.] Digital Equipment Corp, Tewksbury, MA 01876 USA. [Nguyen, Paul P.] MIT, Dept Phys, Hanscom AFB, MA 01731 USA. [Nguyen, Paul P.] US Air Force, Rome Lab, Hanscom AFB, MA 01731 USA. RP Oates, JH (reprint author), MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA. FU Joint Services Electronics Program [DAA1-03-89-C-0001]; Consortium for Superconducting Electronics FX This work was supported by the Joint Services Electronics Program under the contract no. DAA1-03-89-C-0001. This work was also conducted under the auspices of the Consortium for Superconducting Electronics with full support by the Defense Advanced Research Projects Agency. NR 10 TC 30 Z9 30 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 EI 1558-2515 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD MAR PY 1993 VL 3 IS 1 BP 17 EP 22 DI 10.1109/77.233413 PN 1 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA V43TF UT WOS:000209703000003 ER PT J AU Oates, DE Nguyen, PP Dresselhaus, G Dresselhaus, MS Chin, CC AF Oates, D. E. Nguyen, P. P. Dresselhaus, G. Dresselhaus, M. S. Chin, C. C. TI NONLINEAR SURFACE RESISTANCE IN YBa2Cu3O7-x THIN FILMS SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article AB The nonlinearity of the surface impedance Z, of YBa2Cu3O7-x, is of great importance for passive microwave devices. Since the Z, depends upon the microwave current and magnetic field H-rf, designs must consider the losses and intermodulation distortion at the operating power levels. We present a complete characterization of the nonlinearities in high-quality YBa2Cu3O7-x thin films. We have measured Z(s)(H-rf) for H-rf from 0 to approximately 1 kOe vs temperature from 4.2 K to T-c and vs frequency from 1.5 to 10 GHz using a stripline resonator. The results are compared to a coupled-grain model which shows good agreement for R-s(H-rf). The imaginary part of Z(s)(H-rf), i.e., X-s(H-rf), however, does not fit the model. C1 [Oates, D. E.] MIT, Lincoln Lab, 244 Wood St, Lexington, MA 02173 USA. [Nguyen, P. P.] MIT, Dept Phys, Cambridge, MA 02139 USA. [Nguyen, P. P.; Dresselhaus, G.] US Air Force, Rome Lab, Hanscom AFB, MA 01731 USA. [Dresselhaus, G.] MIT, Francis Bitter Natl Magnet Lab, Cambridge, MA 02139 USA. [Dresselhaus, M. S.; Chin, C. C.] MIT, Dept Phys, Cambridge, MA 02139 USA. [Dresselhaus, M. S.] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA. RP Oates, DE (reprint author), MIT, Lincoln Lab, 244 Wood St, Lexington, MA 02173 USA. FU DARPA through the Consortium for Superconducting Electronics; DARPA through the Dept. of the Air Force FX Research supported by DARPA through the Consortium for Superconducting Electronics and the Dept. of the Air Force; Under the AFOSR University Residence Research Program; Now at ISTEC, Tokyo, Japan NR 14 TC 22 Z9 22 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 EI 1558-2515 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD MAR PY 1993 VL 3 IS 1 BP 1114 EP 1118 DI 10.1109/77.233359 PN 3 PG 5 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA V43TH UT WOS:000209703200051 ER PT J AU COOK, DA POOCH, UW AF COOK, DA POOCH, UW TI ACCELERATED TIME DISCRETE EVENT SIMULATION IN A DISTRIBUTED ENVIRONMENT SO INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE LA English DT Article AB In distributed discrete event simulation, accelerating the simulation time by accelerating or warping time is a means of speeding up the execution time of the simulation. One method of accelerating time is the time warp or virtual time methodology, where processors advance their local clocks at will, communicating with other processors using messages. A processor must rollback to recover when inconsistent or unsafe states occur, using antimessages. Problems associated with accelerating time in a distributed simulation include large buffer spaces for saving state information, and the potential for ripple effects, which occur when one rollback triggers others. In addition, simulations that must produce irrevocable actions cannot allow a rollback to occur that nullifies the action. This research presents a methodology for synchronizing event-driven simulations in a distributed environment where processors can be arranged into a logical token ring. This methodology, known as event jumping, prevents non-local rollbacks and reduces the amount of buffer space used for state saves. This paper also shows the results of implementing this algorithm using both a network simulator and an actual distributed environment. C1 TEXAS A&M UNIV SYST,DEPT COMP SCI,COLL STN,TX 77843. RP COOK, DA (reprint author), USAF ACAD,DEPT COMP SCI,COLORADO SPRINGS,CO 80840, USA. NR 23 TC 1 Z9 1 U1 0 U2 0 PU TAYLOR & FRANCIS LTD PI LONDON PA ONE GUNDPOWDER SQUARE, LONDON, ENGLAND EC4A 3DE SN 0020-7721 J9 INT J SYST SCI JI Int. J. Syst. Sci. PD MAR PY 1993 VL 24 IS 3 BP 451 EP 478 DI 10.1080/00207729308949500 PG 28 WC Automation & Control Systems; Computer Science, Theory & Methods; Operations Research & Management Science SC Automation & Control Systems; Computer Science; Operations Research & Management Science GA KT457 UT WOS:A1993KT45700003 ER PT J AU ASCHER, DP ROBERTS, C AF ASCHER, DP ROBERTS, C TI DETERMINATION OF THE ETIOLOGY OF SEROREVERSALS IN HIV TESTING BY ANTIBODY FINGERPRINTING SO JOURNAL OF ACQUIRED IMMUNE DEFICIENCY SYNDROMES AND HUMAN RETROVIROLOGY LA English DT Article DE HIV ANTIBODIES; AUTOANTIBODIES; SEROREVERSALS ID INFECTION AB Fifteen sets of seroreversal serum samples (i.e., an initial specimen confirmed as anti-human immunodeficiency virus, HIV, positive and a 2-4-week follow-up specimen that is anti-HIV negative) were identified from 711,684 military members tested by the U.S. Army HIV screening program from January 1990 to May 1991. We utilized the Miragen Antibody Finger-printing Assay to determine what proportion of these seroreversals was caused by different or discordant patient samples as opposed to laboratory testing errors. Forty-two percent of these seroreversals demonstrated substantially discordant immunoblot strips representing serum samples from different patients. We recommend utilization of this antibody fingerprinting assay to help determine the etiology of HIV seroreversal specimens. C1 WALTER REED ARMY INST RES,DIV DIAGNOST RETROVIROL,WASHINGTON,DC 20307. RP ASCHER, DP (reprint author), WILFORD HALL USAF MED CTR,DPT PEDIATR SGHP,LACKLAND AFB,TX 78236, USA. NR 9 TC 31 Z9 32 U1 1 U2 1 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 1077-9450 J9 J ACQ IMMUN DEF SYND JI J. Acquir. Immune Defic. Syndr. Hum. Retrovirol. PD MAR PY 1993 VL 6 IS 3 BP 241 EP 244 PG 4 WC Immunology; Infectious Diseases SC Immunology; Infectious Diseases GA KN542 UT WOS:A1993KN54200005 PM 8450398 ER PT J AU KUTSCHE, C TARGOVE, J HAALAND, P AF KUTSCHE, C TARGOVE, J HAALAND, P TI MICROLITHOGRAPHIC PATTERNING OF POLYTHIOPHENE FILMS SO JOURNAL OF APPLIED PHYSICS LA English DT Note ID THIN-FILMS; 3RD-ORDER AB Lithographic patterning of micrometer scale structures in films of polythiophene, an organic material with good linear and nonlinear chi(3) optical properties, has been accomplished by two methods: direct deposition of polythiophene in SiO2 trenches and an oxygen plasma etch of polythiophene through a spin-on glass mask. C1 USAF,INST TECHNOL,WRIGHT PATTERSON AFB,OH 45433. NR 13 TC 11 Z9 11 U1 0 U2 1 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD MAR 1 PY 1993 VL 73 IS 5 BP 2602 EP 2604 DI 10.1063/1.354077 PG 3 WC Physics, Applied SC Physics GA KT868 UT WOS:A1993KT86800091 ER PT J AU SUEN, WC SPAIN, JC AF SUEN, WC SPAIN, JC TI CLONING AND CHARACTERIZATION OF PSEUDOMONAS-SP STRAIN DNT GENES FOR 2,4-DINITROTOLUENE DEGRADATION SO JOURNAL OF BACTERIOLOGY LA English DT Article ID MULTICOMPONENT ENZYME-SYSTEM; ESCHERICHIA-COLI; 2,4-DICHLOROPHENOXYACETIC ACID; TOLUENE DEGRADATION; COSMID CLONING; MENDOCINA KR1; PUTIDA F1; EXPRESSION; OXIDATION; BIOTRANSFORMATION AB The degradation of 2,4-dinitrotoluene (DNT) by Pseudomonas sp. strain DNT is initiated by a dioxygenase attack to yield 4-methyl-5-nitrocatechol (MNC) and nitrite. Subsequent oxidation of MNC by a monooxygenase results in the removal of the second molecule of nitrite, and further enzymatic reactions lead to ring fission. Initial studies on the molecular basis of DNT degradation in this strain revealed the presence of three plasmids. Mitomycin-derived mutants deficient in either DNT dioxygenase only or DNT dioxygenase and MNC monooxygenase were isolated. Plasmid profiles of mutant strains suggested that the mutations resulted from deletions in the largest plasmid. Total plasmid DNA partially digested by EcoRI was cloned into a broad-host-range cosmid vector, pCP13. Recombinant clones containing genes encoding DNT dioxygenase, MNC monooxygenase, and 2,4,5-trihydroxytoluene oxygenase were characterized by identification of reaction products and the ability to complement mutants. Subcloning analysis suggests that the DNT dioxygenase is a multicomponent enzyme system and that the genes for the DNT pathway pre organized in at least three different operons. C1 USAF,CIVIL ENGN SUPPORT AGCY,TYNDALL AFB,FL 32403. NR 49 TC 81 Z9 87 U1 0 U2 8 PU AMER SOC MICROBIOLOGY PI WASHINGTON PA 1325 MASSACHUSETTS AVENUE, NW, WASHINGTON, DC 20005-4171 SN 0021-9193 J9 J BACTERIOL JI J. Bacteriol. PD MAR PY 1993 VL 175 IS 6 BP 1831 EP 1837 PG 7 WC Microbiology SC Microbiology GA KT165 UT WOS:A1993KT16500032 PM 8449889 ER PT J AU PETERSON, AL DIXON, DC TALCOTT, GW KELLEHER, WJ AF PETERSON, AL DIXON, DC TALCOTT, GW KELLEHER, WJ TI HABIT REVERSAL TREATMENT OF TEMPOROMANDIBULAR DISORDERS - A PILOT INVESTIGATION SO JOURNAL OF BEHAVIOR THERAPY AND EXPERIMENTAL PSYCHIATRY LA English DT Article ID TOURETTE-SYNDROME; CRANIOMANDIBULAR INDEX; TICS AB This study evaluated the use of behavior therapy to reduce teeth clenching and grinding as a treatment for temporomandibular disorders (TMD). Habit reversal was used to treat three adults with TMD using a multiple baseline across subjects design. The results indicated significant improvement for two of the three subjects including decreased self-reported pain, decreased pain upon muscle palpation, and increased maximum mandibular opening. However, temporomandibular joint sounds were increased. Habit reversal appears to be more effective in reducing the myofascial pain symptoms of TMD than in improving temporomandibular joint functioning. C1 WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. RP PETERSON, AL (reprint author), SGHMA,KEESLER MED CTR,HLTH PSYCHOL SERV,BILOXI,MS 39534, USA. NR 23 TC 27 Z9 27 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0005-7916 J9 J BEHAV THER EXP PSY JI J. Behav. Ther. Exp. Psychiatry PD MAR PY 1993 VL 24 IS 1 BP 49 EP 55 DI 10.1016/0005-7916(93)90008-K PG 7 WC Psychology, Clinical; Psychiatry SC Psychology; Psychiatry GA LN294 UT WOS:A1993LN29400006 PM 8370797 ER PT J AU HOFMANN, GE HOROWITZ, GM SCOTT, RT NAVOT, D AF HOFMANN, GE HOROWITZ, GM SCOTT, RT NAVOT, D TI TRANSFORMING GROWTH FACTOR-ALPHA IN HUMAN IMPLANTATION TROPHOBLAST - IMMUNOHISTOCHEMICAL EVIDENCE FOR AUTOCRINE PARACRINE FUNCTION SO JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM LA English DT Article ID HUMAN CHORIONIC-GONADOTROPIN; FACTOR RECEPTOR; TGF-ALPHA; DEVELOPMENTAL EXPRESSION; HUMAN ENDOMETRIUM; BINDING-SITES; MESSENGER-RNA; MOUSE; CELLS; PLACENTA AB Epidermal growth factor (EGF) and its receptor (EGF-R) have been demonstrated in human implantation sites. Transforming growth factor-alpha (TGF-alpha), a protein with extensive sequence homology to EGF and with equal affinity for the EGF-R, was localized immunohistochemically in early intrauterine and ectopic pregnancies. Within the same experiments, TGF-alpha immunostaining was more intense in ectopic than intrauterine pregnancies. In both groups, TGF-alpha immunostaining was moderate to intense in the syncytiotrophoblast (ST), light to moderate in the cytotrophoblast (CT), and moderate to intense in intermediate trophoblast (IT). In ST, TGF-alpha immunostaining localized to the cytoplasm and plasma membranes, including microvilli. No nuclear associated TGF-alpha was noted in ST. In CT, differential TGF-alpha immunostaining was noted between the villous and nonvillous CT. Villous CT demonstrated light to absent cytoplasmic TGF-alpha immunostaining with intense nuclear staining. In contrast, nonvillous CT revealed moderate to intense cytoplasmic staining without demonstrable nuclear staining. These results demonstrate the presence of immunoreactive TGF-alpha in all forms of trophoblast. The known presence of the EGF-R suggests an autocrine/paracrine role for TGF-alpha during human implantation. C1 MT SINAI MED CTR, DEPT OBSTET & GYNECOL, NEW YORK, NY 10029 USA. WILFORD HALL USAF MED CTR, DEPT OBSTET & GYNECOL, LACKLAND AFB, TX 78236 USA. NR 39 TC 35 Z9 35 U1 0 U2 0 PU ENDOCRINE SOC PI CHEVY CHASE PA 8401 CONNECTICUT AVE, SUITE 900, CHEVY CHASE, MD 20815-5817 USA SN 0021-972X J9 J CLIN ENDOCR METAB JI J. Clin. Endocrinol. Metab. PD MAR PY 1993 VL 76 IS 3 BP 781 EP 785 DI 10.1210/jc.76.3.781 PG 5 WC Endocrinology & Metabolism SC Endocrinology & Metabolism GA KQ341 UT WOS:A1993KQ34100045 PM 7680357 ER PT J AU HOROWITZ, GM SCOTT, RT DREWS, MR NAVOT, D HOFMANN, GE AF HOROWITZ, GM SCOTT, RT DREWS, MR NAVOT, D HOFMANN, GE TI IMMUNOHISTOCHEMICAL LOCALIZATION OF TRANSFORMING GROWTH FACTOR-ALPHA IN HUMAN ENDOMETRIUM, DECIDUA, AND TROPHOBLAST SO JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM LA English DT Article ID HUMAN CHORIONIC-GONADOTROPIN; FACTOR RECEPTOR; HUMAN-PLACENTA; DEVELOPMENTAL EXPRESSION; PERIIMPLANTATION PERIOD; BINDING-SITES; MESSENGER-RNA; MOUSE UTERUS; TGF-ALPHA; CELLS AB Transforming growth factor-alpha (TGF-alpha) was localized immunohistochemically in human proliferative and secretory endometrium, decidua, and trophoblast from first, second, and third trimester pregnancies. In proliferative endometrium, TGF-alpha immunostaining was moderate to intense and localized predominantly to stromal cells, whereas glandular staining was absent to light. After ovulation, TGF-alpha staining was light within the stroma, but moderate to intense around spiral arterioles. Moderate to intense staining was also detected in glandular and surface epithelium in secretory endometrium, with no staining noted in subnuclear vacuoles. In hypersecretory endometrium, staining was predominantly epithelial. In decidua, TGF-alpha was detected in intermediate trophoblast and on the surface epithelium. In first trimester trophoblast, TGF-alpha was detected in both cytotrophoblast (CT) and syncytiotrophoblast. Cytoplasmic staining was light in CT and moderate to intense in ST, with particular staining of plasma membranes. Intense TGF-alpha staining of nuclear membranes in CT was noted. TGF-alpha staining was light to absent in second and absent in third trimester trophoblast. This study demonstrates immunoreactive TGF-alpha in tissues known to be responsive to epidermal growth factor, and also demonstrates the presence of immunoreactive TGF-alpha associated with nuclear membranes. Thus, TGF-alpha may play an autocrine/paracrine role in endometrial development and trophoblast function. C1 MT SINAI MED CTR, DEPT OBSTET & GYNECOL, NEW YORK, NY 10029 USA. WILFORD HALL USAF MED CTR, DEPT OBSTET & GYNECOL, LACKLAND AFB, TX 78236 USA. NR 38 TC 57 Z9 58 U1 0 U2 0 PU ENDOCRINE SOC PI CHEVY CHASE PA 8401 CONNECTICUT AVE, SUITE 900, CHEVY CHASE, MD 20815-5817 USA SN 0021-972X J9 J CLIN ENDOCR METAB JI J. Clin. Endocrinol. Metab. PD MAR PY 1993 VL 76 IS 3 BP 786 EP 792 DI 10.1210/jc.76.3.786 PG 7 WC Endocrinology & Metabolism SC Endocrinology & Metabolism GA KQ341 UT WOS:A1993KQ34100046 PM 7680358 ER PT J AU CLERICI, M HAKIM, FT VENZON, DJ BLATT, S HENDRIX, CW WYNN, TA SHEARER, GM AF CLERICI, M HAKIM, FT VENZON, DJ BLATT, S HENDRIX, CW WYNN, TA SHEARER, GM TI CHANGES IN INTERLEUKIN-2 AND INTERLEUKIN-4 PRODUCTION IN ASYMPTOMATIC, HUMAN IMMUNODEFICIENCY VIRUS-SEROPOSITIVE INDIVIDUALS SO JOURNAL OF CLINICAL INVESTIGATION LA English DT Article DE INTERLEUKIN-2; INTERLEUKIN-4; INTERLEUKIN-10; HUMAN IMMUNODEFICIENCY VIRUS INFECTION; T-LYMPHOCYTES ID T-HELPER-CELL; ANTIGEN-PRESENTING CELL; CYTOKINE PRODUCTION; INFECTED INDIVIDUALS; SUPPRESSOR FACTORS; ENVELOPE PROTEIN; AIDS PATIENTS; INVITRO; HIV; SUBSETS AB Infection with HIV results in an incremental loss of T helper cell (TH) function, which can occur years before CD4 cell numbers are critically reduced and AIDS is diagnosed. All TH function is not affected, however, because B cell activation and hypergammaglobulinema are also characteristic of this period. Recently, in a murine model of AIDS an early loss in production of the CD4 cytokines IL-2 and IFN-gamma was correlated with an increase in the B cell stimulatory cytokines IL-4, IL-5, and IL-10. We therefore assessed the production of IL-4 generated by PBL from HIV-seropositive (HIV+) individuals who did not have AIDS, yet who exhibited different TH functional categories based on their IL-2 production profiles. We observed that the decreases in recall antigen-stimulated IL-2 production were accompanied by an increase in IL-4 production. The loss of recall antigen-stimulated responses in HIV+ individuals could be reversed in vitro by anti-IL4 antibody. Our results suggest that the TH functions assessed by IL-4 production replace the normally dominant TH function of antigen-stimulated IL-2 production in the progression toward AIDS, and raise the possibility of cytokine cross-regulation in AIDS therapy. C1 NCI,EXPTL IMMUNOL BRANCH,BLDG 10,ROOM 4B-17,BETHESDA,MD 20892. NIAID,PARASIT DIS LAB,BETHESDA,MD 20892. WILFORD HALL USAF MED CTR,HIV UNIT,LACKLAND AFB,TX 78236. NCI,BIOSTAT & DATA MANAGEMENT SECT,BETHESDA,MD 20892. RI Venzon, David/B-3078-2008; Wynn, Thomas/C-2797-2011; Hendrix, Craig/G-4182-2014 OI Hendrix, Craig/0000-0002-5696-8665 NR 52 TC 479 Z9 481 U1 0 U2 11 PU ROCKEFELLER UNIV PRESS PI NEW YORK PA 1114 FIRST AVE, 4TH FL, NEW YORK, NY 10021 SN 0021-9738 J9 J CLIN INVEST JI J. Clin. Invest. PD MAR PY 1993 VL 91 IS 3 BP 759 EP 765 DI 10.1172/JCI116294 PG 7 WC Medicine, Research & Experimental SC Research & Experimental Medicine GA KR461 UT WOS:A1993KR46100004 PM 8450057 ER PT J AU CAVANAH, SFW JACOBSON, JM MCINTYRE, T AF CAVANAH, SFW JACOBSON, JM MCINTYRE, T TI CLINICAL USE OF ANDROGENIC STEROIDS AT A MAJOR MEDICAL-CENTER - WHO PRESCRIBES ANDROGENS AND HOW WELL DO THEY DO IT SO JOURNAL OF CLINICAL PHARMACOLOGY LA English DT Article ID TESTOSTERONE; MEN AB To assess prescribing practices for androgens at Wilford Hall USAF Medical Center, the authors analyzed prescriptions for all patients receiving therapy during a 12-month period (n = 201) and reviewed the available outpatient records not maintained elsewhere (n = 105). The most commonly prescribed androgens were testosterone enanthate (144/201, 56.7%), and danazol (521201; 25.9%). Review of the available outpatient medical records of 73 male patients using testosterone enanthate showed a mean age of 59.5 years, mean frequency of injection of 20 days, mean duration of therapy of 3.5 years, and mean dose of 226 mg. Therapy was initiated by a urologist (34173; 46.6%), an endocrinologist (33/73; 45.2%), or an internist (6.73; 8.2%). Indications for therapy based on pretreatment laboratory and historical data included hypergonadotropic hypogonadism (24173; 32.9%), hypogonadotropic hypogonadism (23173; 31.5%), unspecified hypogonadism (7173; 9.6%), and empiric treatment of elderly men with erectile dysfunction without evidence of hypogonadism (9173; 26%). Pretreatment prostate examinations as well as measurement of serum testosterone (66173; 90.4%) and serum gonadotropins (52173; 71.2%) were often not performed. The authors conclude that records of patients treated with androgens show: 1) Doses are appropriate; 2) Empiric treatment of erectile dysfunction in elderly men is common despite the associated risks; 3) Laboratory and physical evaluation before treatment is often incomplete; 4) There was no evidence of androgenic substance abuse in patients studied. C1 WILFORD HALL USAF MED CTR,DEPT MED,ENDOCRINOL SECT,LACKLAND AFB,TX 78236. NR 18 TC 3 Z9 3 U1 0 U2 0 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 0091-2700 J9 J CLIN PHARMACOL JI J. Clin. Pharmacol. PD MAR PY 1993 VL 33 IS 3 BP 253 EP 258 PG 6 WC Pharmacology & Pharmacy SC Pharmacology & Pharmacy GA KV375 UT WOS:A1993KV37500010 PM 8463439 ER PT J AU SINGH, NB HENNINGSEN, T HOPKINS, RH MAZELSKY, R HAMACHER, RD SUPERTZI, EP HOPKINS, FK ZELMON, DE SINGH, OP AF SINGH, NB HENNINGSEN, T HOPKINS, RH MAZELSKY, R HAMACHER, RD SUPERTZI, EP HOPKINS, FK ZELMON, DE SINGH, OP TI NONLINEAR OPTICAL CHARACTERISTICS OF BINARY ORGANIC-SYSTEM SO JOURNAL OF CRYSTAL GROWTH LA English DT Article; Proceedings Paper CT 10TH INTERNATIONAL CONF ON CRYSTAL GROWTH ( ICGG-10 ) CY AUG 16-21, 1992 CL SAN DIEGO, CA ID CRYSTALS AB Single crystals of 3-nitroaniline-2-chloro-4-nitroaniline (m.NA-CNA) alloy were grown from the melt. The crystals do not show any damage when exposed to 1.06 mum radiation at 1 mJ per pulse (10 Hz repetition rate, 0.35 mm spot size, and 10 ns pulse) corresponding to a 100 MW/cm2 power density. The second harmonic efficiency was measured by using a beam of 1.5 mm diameter spot 10 ns pulse and 1.06 mum wavelength. The input energy was 0.3 mJ, peak power density was 1.7 MW/cm2 and the test crystal was 2 mm thick. The observed efficiency was 7.7% indicating that a crystal of 1 cm length will produce very high efficiency. This measured efficiency for the m.NA-CNA alloy is substantially higher than the reported value for the m.NA crystal. C1 WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. KN GOVT POST GRAD COLL GYANPUR,DEPT CHEM,VARANASI,INDIA. RP SINGH, NB (reprint author), WESTINGHOUSE ELECT CORP,CTR SCI & TECHNOL,1310 BEULAH RD,PITTSBURGH,PA 15235, USA. NR 7 TC 43 Z9 43 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-0248 J9 J CRYST GROWTH JI J. Cryst. Growth PD MAR PY 1993 VL 128 IS 1-4 BP 976 EP 980 DI 10.1016/S0022-0248(07)80081-9 PN 2 PG 5 WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied SC Crystallography; Materials Science; Physics GA KV697 UT WOS:A1993KV69700080 ER PT J AU SHAMMA, JS CLOUTIER, JR AF SHAMMA, JS CLOUTIER, JR TI GAIN-SCHEDULED MISSILE AUTOPILOT DESIGN USING LINEAR PARAMETER VARYING TRANSFORMATIONS SO JOURNAL OF GUIDANCE CONTROL AND DYNAMICS LA English DT Article AB This paper presents a gain-scheduled design for a missile longitudinal autopilot. The gain-scheduled design is novel in that it does not involve linearizations about trim conditions of the missile dynamics. Rather, the missile dynamics are brought to a quasilinear parameter varying (LPV) form via a state transformation. An LPV system is defined as a linear system whose dynamics depend on an exogenous variable whose values are unknown a priori but can be measured upon system operation. In this case, the variable is the angle of attack. This is actually an endogenous variable, hence the expression ''quasi-LPV.'' Once in a quasi-LPV form, a robust controller using mu synthesis is designed to achieve angle-of-attack control via fin deflections. The final design is an inner/outer-loop structure, with angle-of-attack control being the inner loop and normal acceleration control being the outer loop. C1 USAF,ARMAMENT DIRECTORATE,EGLIN AFB,FL 32542. USAF,WRIGHT LAB,MNAG,GUIDANCE & CONTROLS BRANCH,WASHINGTON,DC 20330. RP SHAMMA, JS (reprint author), UNIV TEXAS,DEPT AEROSP ENGN & ENGN MECH,AUSTIN,TX 78712, USA. NR 11 TC 146 Z9 151 U1 2 U2 19 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0731-5090 J9 J GUID CONTROL DYNAM JI J. Guid. Control Dyn. PD MAR-APR PY 1993 VL 16 IS 2 BP 256 EP 263 DI 10.2514/3.20997 PG 8 WC Engineering, Aerospace; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA KR254 UT WOS:A1993KR25400005 ER PT J AU CLOUTIER, JR LIN, CF YANG, C AF CLOUTIER, JR LIN, CF YANG, C TI MANEUVERING TARGET TRACKING VIA SMOOTHING AND FILTERING THROUGH MEASUREMENT CONCATENATION SO JOURNAL OF GUIDANCE CONTROL AND DYNAMICS LA English DT Article; Proceedings Paper CT AIAA GUIDANCE, NAVIGATION, AND CONTROL CONF CY AUG 12-14, 1991 CL NEW ORLEANS, LA SP AMER INST AERONAUT & ASTRONAUT AB Measurement concatenation is a technique that takes advantage of the fact that typically measurements can be taken at a much higher rate than the algorithmic processing rate. The rapidly sampled measurements are stacked into a vector and related to the filter states al either the last or next algorithmic processing time. In this paper, a new innovations-based scheme of continuous maneuver estimation and filter adaptation is proposed. The main feature of the new algorithm consists of the combined use of smoothing and filtering, rendered possible due to measurement concatenation. Simulation results are presented to show the potential of the proposed method. C1 USAF,ARMAMENT DIRECTORATE,INERTIAL TECHNOL SECT,EGLIN AFB,FL 32542. AMER GNC CORP,CHATSWORTH,CA 91311. USAF,ARMAMENT DIRECTORATE,FLIGHT CONTROL TECHNOL SECT,EGLIN AFB,FL 32542. RP CLOUTIER, JR (reprint author), USAF,ARMAMENT DIRECTORATE,GUIDANCE & CONTROL BRANCH,EGLIN AFB,FL 32542, USA. NR 22 TC 8 Z9 8 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0731-5090 J9 J GUID CONTROL DYNAM JI J. Guid. Control Dyn. PD MAR-APR PY 1993 VL 16 IS 2 BP 377 EP 384 DI 10.2514/3.21013 PG 8 WC Engineering, Aerospace; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA KR254 UT WOS:A1993KR25400021 ER PT J AU SHEN, G SEMIATIN, SL ALTAN, T AF SHEN, G SEMIATIN, SL ALTAN, T TI INVESTIGATION OF FLOW-STRESS AND MICROSTRUCTURE DEVELOPMENT IN NONISOTHERMAL FORGING OF TI-6242 SO JOURNAL OF MATERIALS PROCESSING TECHNOLOGY LA English DT Article ID TI-6AL-2SN-4ZR-2MO-0.1SI AB An investigation of flow stress and microstructure development in non-isothermal forging of Ti-6Al-2Sn-4Zr-2Mo (Ti-6242) has been conducted to validate the temperature history compensation method which was developed previously by Shen et al. Two comparisons are made in the present work: (1) observed flow patterns are compared to FEM predictions obtained using either: (a) the isothermal flow-stress relation modified with the same temperature-compensation scheme deduced from non-isothermal forging of Ti-6Al-4V; or (b) the measured flow stress law without temperature compensation; and (2) microstructures obtained from samples forged isothermally at different temperatures are compared to those which were developed in samples which experienced different temperature histories during non-isothermal forging. This investigation has revealed that plastic flow transients and microstructure development during non-isothermal forging of the two-phase region cannot be deduced from isothermal forging behavior alone. C1 OHIO STATE UNIV,ERC NET SHAPE MFG,COLUMBUS,OH 43210. OHIO STATE UNIV,DEPT IND & SYST ENGN,COLUMBUS,OH 43210. USAF,WRIGHT LAB,DIV MAT & CERAM,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RI SEMIATIN, SHELDON/E-7264-2017 NR 8 TC 10 Z9 25 U1 0 U2 3 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0924-0136 J9 J MATER PROCESS TECH JI J. Mater. Process. Technol. PD MAR PY 1993 VL 36 IS 3 BP 303 EP 319 DI 10.1016/0924-0136(93)90036-6 PG 17 WC Engineering, Industrial; Engineering, Manufacturing; Materials Science, Multidisciplinary SC Engineering; Materials Science GA KR453 UT WOS:A1993KR45300004 ER PT J AU HAY, RS AF HAY, RS TI PHASE-TRANSFORMATIONS AND MICROSTRUCTURE EVOLUTION IN SOL-GEL DERIVED YTTRIUM-ALUMINUM-GARNET FILMS SO JOURNAL OF MATERIALS RESEARCH LA English DT Article ID DIPHASIC ALUMINOSILICATE GELS; TRANSPARENT POROUS ALUMINA; GRAIN-GROWTH; THIN-FILMS; ALPHA-ALUMINA; COMPUTER-SIMULATION; RECRYSTALLIZATION KINETICS; NUCLEATION; CRYSTALLIZATION; MECHANISMS AB Diphasic yttrium-aluminum garnet (Y3Al5O12, YAG) sols were made by hydrolysis of aluminum and yttrium isopropoxides. The sols were gelled across TEM grids to make films. The films were heat-treated up to 1550-degrees-C for as long as 300 h. Heat-treatments of bulk gel were also done. Microstructure and phase evolution were observed by TEM. Some observations were done in situ in a TEM hot-stage. YAG fraction and grain size, matrix grain size, nuclei/area, and film thickness were measured. Bulk samples were characterized by x-ray, DTA, and TGA. Yttrium-aluminum monoclinic (YAM) and transition alumina appeared at 800-degrees-C. YAG nucleated between 800-degrees-C and 950-degrees-C. Nucleation was weakly correlated with the transient presence of YAlO3 garnet, and was eventually site-saturated at 0.3/mum3 . The change in grain growth rate of the YAM and transition alumina matrix correlated with the change in the growth rate of YAG. Between 850-degrees-C and 1000-degrees-C YAG growth had t1/2 dependence and 280 kJ/mole activation energy. Below 850-degrees-C nucleation was continuous, and growth had t0.85 dependence. Above 1000-degrees-C YAG growth had t 1/4 dependence, and the matrix grains coarsened with t1/4 dependence. Thicker films reacted faster because the nuclei/area and the growth rate after nucleation scaled with thickness. YAG growth was accompanied by formation of 20-100 nm subgrains. In the late stages of matrix grain coarsening there was also some reaction to YAG by a different process. Nucleation and growth kinetics are compared with other systems. Possible mechanisms are discussed. RP HAY, RS (reprint author), MAT DIRECTORATE,WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433, USA. NR 93 TC 66 Z9 74 U1 1 U2 14 PU MATERIALS RESEARCH SOCIETY PI PITTSBURGH PA 9800 MC KNIGHT ROAD SUITE 327, PITTSBURGH, PA 15237 SN 0884-2914 J9 J MATER RES JI J. Mater. Res. PD MAR PY 1993 VL 8 IS 3 BP 578 EP 604 DI 10.1557/JMR.1993.0578 PG 27 WC Materials Science, Multidisciplinary SC Materials Science GA KQ748 UT WOS:A1993KQ74800022 ER PT J AU TAKACS, VJ LIE, T PERALA, DG ADAMS, DF AF TAKACS, VJ LIE, T PERALA, DG ADAMS, DF TI EFFICACY OF 5 MACHINING INSTRUMENTS IN SCALING OF MOLAR FURCATIONS SO JOURNAL OF PERIODONTOLOGY LA English DT Article DE FURCATION THERAPY; DENTAL CALCULUS PREVENTION AND CONTROL; ULTRASONICS; SCALING INSTRUMENTATION; DENTAL INSTRUMENTS ID HEALING FOLLOWING TREATMENT; DISEASED ROOT CEMENTUM; LONG-TERM MAINTENANCE; PERIODONTAL-DISEASE; CALCULUS REMOVAL; TOOTH LOSS; ULTRASONIC INSTRUMENTATION; RESIDUAL CALCULUS; TEETH; HAND AB THE SCALING EFFICACY OF MACHINING INSTRUMENTS was studied in the furcations of 100 extracted molars. The molars were divided into 5 groups with similar furcation anatomy, painted with artificial calculus, partly submerged in stone blocks, and the furcation entrances covered with a heavy rubber dam material. Ten mandibular and 10 maxillary molars were scaled by an experienced operator with each of the following instruments/inserts: ultrasonic instrument with either a prototype ball point insert or with a new pointed insert; ultrasonic instrument with a ball point insert; reciprocating hand-piece with new inserts for furcations; and a sonic scaler with a universal insert. The molar groups were coded and graded in a stereomicroscope by 2 independent examiners, and the rankings were tested with the Kruskal-Wallis test and the multiple comparisons between treatments test. The results revealed statistically significant differences between the instruments, as well as between different topographical areas of the furcations. The sonic scaler with a universal insert and the ultrasonic instrument with ball point inserts were significantly more efficient (P < 0.05) than the reciprocating handpiece with inserts in most of the areas studied. For mandibular molars, significantly better results (P < 0.05) were obtained for lingual furcation entrances than for furcation roofs. For maxillary molars, significantly better results (P < 0.05) were obtained for distal and buccal entrance areas than for furcation roofs and inside of mesial roots. The present study may give some guidance to the practitioner in choosing machining instruments for furcation cleaning as well as identifying the most difficult topographical areas to instrument. C1 OREGON HLTH SCI UNIV,DEPT PERIODONTOL,611 SW CAMPUS DR,PORTLAND,OR 97201. UNIV BERGEN,DEPT PERIODONTOL,N-5014 BERGEN,NORWAY. USAF,GRAND FORKS AFB,ND. NR 42 TC 30 Z9 31 U1 0 U2 2 PU AMER ACAD PERIODONTOLOGY PI CHICAGO PA 737 NORTH MICHIGAN AVENUE, SUITE 800, CHICAGO, IL 60611-2690 SN 0022-3492 J9 J PERIODONTOL JI J. Periodont. PD MAR PY 1993 VL 64 IS 3 BP 228 EP 236 PG 9 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA KU205 UT WOS:A1993KU20500012 PM 8463946 ER PT J AU COPENHAVER, WW OKIISHI, TH AF COPENHAVER, WW OKIISHI, TH TI ROTATING STALL PERFORMANCE AND RECOVERABILITY OF A HIGH-SPEED 10-STAGE AXIAL-FLOW COMPRESSOR SO JOURNAL OF PROPULSION AND POWER LA English DT Article AB Design factors which influence rotating stall recoverability of a high-speed multistage compressor are not yet fully understood. A high-speed, 10-stage compressor component was tested while operating in-stall to investigate parameters that affect the overall recoverability of a multistage compressor. The compressor instrumentation and data acquisition procedures were designed to obtain detailed performance data from the compressor while it entered into a rotating stall condition and while it operated in rotating stall. The compressor was tested at different in-stall operating conditions by varying compressor shaft speed, discharge throttle, and variable geometry settings to determine the effect of each variable on rotating-stall performance and recoverability. Test results suggest that the stall cell may not extend the full length of the compressor but instead can be confined to a portion (here the rear stages) of the compressor. When stages are stacked together, as is the case in a multistage compressor, the stalled performance and subsequent recoverability are greatly affected by how well the stages of the compressor are matched. The results also suggest that high-speed flows in the tenth stage may extend in-stall operation causing low recoverability of the overall test compressor at higher shaft speeds. C1 WRIGHT LAB,PROP & POWER DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. IOWA STATE UNIV,AMES,IA 50021. RP COPENHAVER, WW (reprint author), WRIGHT LAB,COMPRESSOR RES GRP,WRIGHT PATTERSON AFB,OH 45433, USA. NR 20 TC 2 Z9 2 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0748-4658 J9 J PROPUL POWER JI J. Propul. Power PD MAR-APR PY 1993 VL 9 IS 2 BP 281 EP 292 DI 10.2514/3.23620 PG 12 WC Engineering, Aerospace SC Engineering GA KR542 UT WOS:A1993KR54200018 ER PT J AU DECOOK, SJ KING, PI ELROD, WC AF DECOOK, SJ KING, PI ELROD, WC TI WAKE MIXING AND PERFORMANCE OF A COMPRESSOR CASCADE WITH CRENULATED TRAILING EDGES SO JOURNAL OF PROPULSION AND POWER LA English DT Article AB Trailing-edge crenulations have been shown to enhance velocity recovery (wake dissipation) and to decrease total pressure losses in the blade wakes downstream of a low-aspect ratio linear compressor cascade. A new study was performed to determine the influence of trailing-edge crenulations on outlet flow in the presence of varied inlet flow conditions. Two levels of inlet flow turbulence intensity (about 0.15 and 3%) were combined with sidewall boundary-layer removal at the cascade inlet (on or off) to provide four test conditions. Results from blades with large and small crenulations were compared with unmodified blades. For each test condition, a reduction of 10-20% in both velocity variance (enhanced wake mixing) and total pressure loss was observed in the outlet flow with the crenulated blades, while a slight decrease in turning angle was also observed. RP DECOOK, SJ (reprint author), USAF,INST TECHNOL,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433, USA. NR 10 TC 1 Z9 1 U1 0 U2 2 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0748-4658 J9 J PROPUL POWER JI J. Propul. Power PD MAR-APR PY 1993 VL 9 IS 2 BP 293 EP 300 DI 10.2514/3.23621 PG 8 WC Engineering, Aerospace SC Engineering GA KR542 UT WOS:A1993KR54200019 ER PT J AU HAGER, BG CHANG, WS FEILD, AR AF HAGER, BG CHANG, WS FEILD, AR TI EFFECTS OF PAYLOAD HEAT-FLUX ON SPACE RADIATOR AREA SO JOURNAL OF SPACECRAFT AND ROCKETS LA English DT Note C1 LOCKHEED MISSILES & SPACE CO INC,DEPT THERMODYNAM,DIV SPACE SYST,SUNNYVALE,CA 94088. RP HAGER, BG (reprint author), WRIGHT LAB,POWER TECHNOL BRANCH,DIV AEROSP POWER,WRIGHT PATTERSON AFB,OH 45433, USA. NR 2 TC 1 Z9 1 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0022-4650 J9 J SPACECRAFT ROCKETS JI J. Spacecr. Rockets PD MAR-APR PY 1993 VL 30 IS 2 BP 255 EP 256 DI 10.2514/3.11535 PG 2 WC Engineering, Aerospace SC Engineering GA KW276 UT WOS:A1993KW27600016 ER PT J AU MATIKAS, TE ROUSSEAU, M GATIGNOL, P AF MATIKAS, TE ROUSSEAU, M GATIGNOL, P TI THEORETICAL-ANALYSIS FOR THE REFLECTION OF A FOCUSED ULTRASONIC BEAM FROM A FLUID SOLID INTERFACE SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA LA English DT Article ID RAYLEIGH ANGLE AB A theoretical study of the reflection of focused acoustic beams from a fluid-solid interface is presented. The incident field is defined by a Gaussian velocity distribution along a plane emitter. The reflected field is described through its pressure field in a region not restricted to the interface. Nonspecular phenomena were exhibited at any angle of incidence by means of short wave asymptotic analysis. In particular, for incidence near the Rayleigh angle, a distortion of a part of the caustic of the reflected beam including lateral and axial displacements of the focal point is observed. C1 UNIV PARIS 06,LMM,URA 229,F-75252 PARIS,FRANCE. UNIV TECHNOL COMPIEGNE,DIV ACOUST,F-60206 COMPIEGNE,FRANCE. RP MATIKAS, TE (reprint author), USAF,WRIGHT AERONAUT LABS,NDE BRANCH,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433, USA. RI Matikas, Theodore/I-2803-2012 NR 13 TC 13 Z9 13 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0001-4966 J9 J ACOUST SOC AM JI J. Acoust. Soc. Am. PD MAR PY 1993 VL 93 IS 3 BP 1407 EP 1416 DI 10.1121/1.405427 PG 10 WC Acoustics; Audiology & Speech-Language Pathology SC Acoustics; Audiology & Speech-Language Pathology GA KR974 UT WOS:A1993KR97400021 ER PT J AU LAWS, HF AF LAWS, HF TI A TQM INVOLVEMENT PLAN SO MILITARY MEDICINE LA English DT Article AB We present the plan used to change our 35-bed medical treatment facility to a Deming Total Quality Improvement environment. This was successfully intermeshed with the military hierarchical chain of command and has resulted in a paradigm shift in the least amount of time within the facility. We present this plan, its steps for implementation, and our Quality Council organization so that similar military medical units may learn from our experience. RP LAWS, HF (reprint author), USAF,HQ SGH,BOLLING AFB,DC 20332, USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU ASSN MILITARY SURG US PI BETHESDA PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 SN 0026-4075 J9 MIL MED JI Milit. Med. PD MAR PY 1993 VL 158 IS 3 BP 152 EP 156 PG 5 WC Medicine, General & Internal SC General & Internal Medicine GA KR895 UT WOS:A1993KR89500007 PM 8487966 ER PT J AU DEMAIO, J BAILEY, L HALL, K BOYD, R AF DEMAIO, J BAILEY, L HALL, K BOYD, R TI A MAJOR OUTBREAK OF FOODBORNE GASTROENTERITIS AMONG AIR-FORCE PERSONNEL DURING OPERATION-DESERT-STORM SO MILITARY MEDICINE LA English DT Article AB An outbreak of foodborne gastroenteritis affected 648 United States Air Force personnel stationed in Jeddah, Saudi Arabia during Operation Desert Storm. The implicated food source was a locally catered meal. Despite the presence of an aggressive Air Force public health program, foodborne illness had a major impact on manpower and medical resources during a critical phase of military operations. It is the recommendation of the authors that the Air Force not rely on local caterers during future deployments. RP DEMAIO, J (reprint author), TAC,MED GRP 27,CANNON AFB,NM 88103, USA. NR 0 TC 7 Z9 7 U1 0 U2 0 PU ASSN MILITARY SURG US PI BETHESDA PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 SN 0026-4075 J9 MIL MED JI Milit. Med. PD MAR PY 1993 VL 158 IS 3 BP 161 EP 164 PG 4 WC Medicine, General & Internal SC General & Internal Medicine GA KR895 UT WOS:A1993KR89500009 PM 8487968 ER PT J AU BOURGEOIS, JA HALL, MJ CROSBY, RM DREXLER, KG AF BOURGEOIS, JA HALL, MJ CROSBY, RM DREXLER, KG TI AN EXAMINATION OF NARCISSISTIC PERSONALITY-TRAITS AS SEEN IN A MILITARY POPULATION SO MILITARY MEDICINE LA English DT Article AB Various studies examining the prevalence of personality disorders in civilian inpatient and outpatient populations have consistently found narcissistic personality disorder to be one of the least common. In striking contrast to this, a recently published study showed narcissistic personality features to be among the most common personality features in a military out-patient clinic population. This paper examines several possible explanations for this finding. This surprisingly high relative incidence of narcissistic personality features may be related to a self-selection bias on the part of persons choosing a military career. Narcissistic personality traits may confer adaptive advantage in certain military professional roles. Kohut's theory of specific transference requirements in individuals with narcissistic character structure serves as a useful explanatory model for these findings. RP BOURGEOIS, JA (reprint author), USAF,MED CTR,PSYCHIAT RESIDENCY TRAINING,WRIGHT PATTERSON AFB,OH 45433, USA. NR 0 TC 5 Z9 5 U1 1 U2 2 PU ASSN MILITARY SURG US PI BETHESDA PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 SN 0026-4075 J9 MIL MED JI Milit. Med. PD MAR PY 1993 VL 158 IS 3 BP 170 EP 174 PG 5 WC Medicine, General & Internal SC General & Internal Medicine GA KR895 UT WOS:A1993KR89500011 PM 8487970 ER PT J AU CRABBE, MM MAPPIN, FG FONTENELLE, LJ AF CRABBE, MM MAPPIN, FG FONTENELLE, LJ TI THE USE OF COMPUTED-TOMOGRAPHY TO ASSESS AND TREAT COMPLEX PNEUMOTHORAX SO MILITARY MEDICINE LA English DT Article AB A complex pneumothorax is a loculated pneumothorax due to adhesions. Chest roentgenograms are usually inadequate to assess a complex pneumothorax. A computed tomography (CT) scan can be used to accurately assess the extent of the pneumothorax, and to determine its exact location in order to make placement of a tube thoracostomy easier and safer. In addition, if there is a persistent or recurrent pneumothorax after tube thoracostomy, a CT scan can be used to determine the relationship of the chest tube to the pneumothorax. Three cases are discussed to illustrate the use of the CT scan in evaluating patients who have a complex pneumothorax. RP CRABBE, MM (reprint author), USAF,MED CTR,DEPT SURG,WRIGHT PATTERSON AFB,OH 45433, USA. NR 0 TC 2 Z9 2 U1 0 U2 2 PU ASSN MILITARY SURG US PI BETHESDA PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 SN 0026-4075 J9 MIL MED JI Milit. Med. PD MAR PY 1993 VL 158 IS 3 BP 193 EP 196 PG 4 WC Medicine, General & Internal SC General & Internal Medicine GA KR895 UT WOS:A1993KR89500017 PM 8487975 ER PT J AU RUDGE, FW AF RUDGE, FW TI OSTEORADIONECROSIS OF THE TEMPORAL BONE - TREATMENT WITH HYPERBARIC-OXYGEN THERAPY SO MILITARY MEDICINE LA English DT Article AB Radiation necrosis is a major complication of surgery or trauma in a previously irradiated field. Although it may occur in any location, the most common region affected is the head and neck. Osteoradionecrosis (ORN), the involvement of bone with radiation necrosis, occurs most frequently in the mandible, and has been well described. Involvement of the temporal bone, although less frequent, is nonetheless a difficult problem in management. Described herein is a case of ORN of the temporal bone treated with adjunctive hyperbaric oxygen therapy with complete resolution. This is followed by a discussion of the pathophysiology, presentation, and management of osteoradionecrosis of the temporal bone, including the role of adjunctive hyperbaric oxygen in the treatment regimen. RP RUDGE, FW (reprint author), USAF,DIV HYPERBAR MED,ARMSTRONG LAB,BROOKS AFB,TX 78235, USA. NR 0 TC 5 Z9 6 U1 0 U2 1 PU ASSN MILITARY SURG US PI BETHESDA PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 SN 0026-4075 J9 MIL MED JI Milit. Med. PD MAR PY 1993 VL 158 IS 3 BP 196 EP 198 PG 3 WC Medicine, General & Internal SC General & Internal Medicine GA KR895 UT WOS:A1993KR89500018 PM 8487976 ER PT J AU PHILLIPS, JK AF PHILLIPS, JK TI PLANNING LANGUAGE, PLANNING INEQUALITY - TOLLEFSON,JW SO MODERN LANGUAGE JOURNAL LA English DT Book Review RP PHILLIPS, JK (reprint author), USAF ACAD,COLORADO SPRINGS,CO 80840, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU UNIV WISCONSIN PRESS PI MADISON PA JOURNAL DIVISION, 114 N MURRAY ST, MADISON, WI 53715 SN 0026-7902 J9 MOD LANG J JI Mod. Lang. J. PD SPR PY 1993 VL 77 IS 1 BP 98 EP 99 DI 10.2307/329573 PG 2 WC Education & Educational Research; Linguistics SC Education & Educational Research; Linguistics GA KT189 UT WOS:A1993KT18900018 ER PT J AU ALM, J BECK, W AF ALM, J BECK, W TI TAX AMNESTIES AND COMPLIANCE IN THE LONG-RUN - A TIME-SERIES ANALYSIS SO NATIONAL TAX JOURNAL LA English DT Article AB This paper discusses time series methods that can be used to examine the long run effects of a tax amnesty, and applies these methods to the 1985 Colorado amnesty. Several time series models are estimated: simple ordinary least squares time trend models, univariate time series models, and multivariate intervention models. The empirical results from all models strongly indicate that the Colorado amnesty had no long run impact on either the level or the trend of tax collections. This result suggests that a typical amnesty seems unlikely to generate significant new revenues, but also seems unlikely to compromise voluntary compliance. C1 USAF ACAD,COLORADO SPRINGS,CO 80840. RP ALM, J (reprint author), UNIV COLORADO,BOULDER,CO 80309, USA. NR 12 TC 17 Z9 17 U1 1 U2 3 PU NATL TAX ASSN PI COLUMBUS PA 5310 EAST MAIN ST, COLUMBUS, OH 43213 SN 0028-0283 J9 NATL TAX J JI Natl. Tax J. PD MAR PY 1993 VL 46 IS 1 BP 53 EP 60 PG 8 WC Business, Finance; Economics SC Business & Economics GA KW136 UT WOS:A1993KW13600006 ER PT J AU MORGAN, GW BAROHN, RJ BAZAN, C KING, RB KLUCZNIK, RP AF MORGAN, GW BAROHN, RJ BAZAN, C KING, RB KLUCZNIK, RP TI NERVE ROOT ENHANCEMENT WITH MRI IN INFLAMMATORY DEMYELINATING POLYRADICULONEUROPATHY SO NEUROLOGY LA English DT Note ID DTPA C1 UNIV TEXAS,HLTH SCI CTR,DEPT MED NEUROL,7703 FLOYD CURL DR,SAN ANTONIO,TX 78284. WILFORD HALL USAF MED CTR,DEPT NEUROL,LACKLAND AFB,TX 78236. WILFORD HALL USAF MED CTR,DEPT RADIOL,LACKLAND AFB,TX 78236. UNIV TEXAS,HLTH SCI CTR,DEPT RADIOL,SAN ANTONIO,TX 78284. NR 7 TC 36 Z9 36 U1 0 U2 0 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 0028-3878 J9 NEUROLOGY JI Neurology PD MAR PY 1993 VL 43 IS 3 BP 618 EP 620 PG 3 WC Clinical Neurology SC Neurosciences & Neurology GA KT215 UT WOS:A1993KT21500032 PM 8451012 ER PT J AU SPARKS, JD HILTON, TJ DAVIS, RD REAGAN, SE AF SPARKS, JD HILTON, TJ DAVIS, RD REAGAN, SE TI THE INFLUENCE OF MATRIX USE ON MICROLEAKAGE IN CLASS-5 GLASS-IONOMER RESTORATIONS - RESPONSE SO OPERATIVE DENTISTRY LA English DT Letter RP SPARKS, JD (reprint author), WILFORD HALL USAF MED CTR,DEPT GEN DENT,LACKLAND AFB,TX 78236, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU UNIV WASHINGTON PI SEATTLE PA SCHOOL DENTISTRY SM-57, SEATTLE, WA 98195 SN 0361-7734 J9 OPER DENT JI Oper. Dent. PD MAR-APR PY 1993 VL 18 IS 2 BP 78 EP 79 PG 2 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA KX370 UT WOS:A1993KX37000009 ER PT J AU BURNS, TJ ROGERS, SK VOGEL, GA AF BURNS, TJ ROGERS, SK VOGEL, GA TI FABRY-PEROT CONFOCAL RESONATOR OPTICAL ASSOCIATIVE MEMORY SO OPTICAL ENGINEERING LA English DT Article DE OPTICAL ASSOCIATIVE MEMORY; FABRY-PEROT CONFOCAL RESONATORS; PHOTOREFRACTIVE CRYSTALS ID FEEDBACK AB A unique optical associative memory architecture is presented that combines the optical processing environment of a Fabry-Perot confocal resonator with the dynamic storage and recall properties of volume holograms. The confocal resonator reduces the size and complexity of previous associative memory architectures by folding a large number of discrete optical components into an integrated, compact optical processing environment. Experimental results demonstrate the system is capable of recalling a complete object from memory when presented with partial information about the object. A Fourier optics model of the system's operation shows it implements a spatially continuous version of a discrete, binary Hopfield neural network associative memory. RP BURNS, TJ (reprint author), USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,ENG,WRIGHT PATTERSON AFB,OH 45433, USA. NR 14 TC 1 Z9 1 U1 0 U2 0 PU SOC PHOTO-OPT INSTRUM ENG PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 SN 0091-3286 J9 OPT ENG JI Opt. Eng. PD MAR PY 1993 VL 32 IS 3 BP 469 EP 475 DI 10.1117/12.61204 PG 7 WC Optics SC Optics GA KQ388 UT WOS:A1993KQ38800006 ER PT J AU ARRIAGA, MA LUXFORD, WM ATKINS, JS KWARTLER, JA AF ARRIAGA, MA LUXFORD, WM ATKINS, JS KWARTLER, JA TI PREDICTING LONG-TERM FACIAL-NERVE OUTCOME AFTER ACOUSTIC NEUROMA SURGERY SO OTOLARYNGOLOGY-HEAD AND NECK SURGERY LA English DT Article ID NEURINOMA; REMOVAL AB Although anatomic preservation of the facial nerve is achieved in nearly 90% of reported cases after acoustic neuroma surgery, postoperative long-term facial function is of most concern to the patient. This study examines long-term facial nerve function in relation to the immediate postoperative function and the function at time of discharge from the hospital. Subjects included 515 patients who underwent primary acoustic neuroma removal at House Ear Clinic from 1982 through 1989 and who had normal preoperative facial function, an intact facial nerve after surgery, and a House-Brackmann facial nerve grade available immediately postoperatively, at time of hospital discharge, and at least 1 year postoperatively. Rate of acceptable facial function (House grades I-IV) differed significantly (p less-than-or-equal-to 0.001) at the three postoperative time intervals: 85.2%, immediate; 73.6%, discharge; 93.8%, long-term. Of those with good immediate function (grades I-II), 98.6% had acceptable long-term function. Of those with poor immediate function (grades V-VI), 69.8% had acceptable long-term function. We conclude that facial nerve recovery after acoustic neuroma surgery is characterized by slight deterioration in the immediate postoperative period, but subsequent improvement in the long-term. Patients con be reliably counseled that acceptable function immediately after surgery is associated with a favorable long-term outcome; poor function immediately after surgery, despite an intact nerve, has a more guarded prognosis. C1 WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. UNIV SO CALIF,SCH MED,INST HOUSE EAR,LOS ANGELES,CA 90033. FLORIDA OTOLARYNGOL GRP,SPRINGFIELD,NJ. EAR SPECIALTY GRP,SPRINGFIELD,NJ. NR 13 TC 69 Z9 69 U1 0 U2 1 PU MOSBY-YEAR BOOK INC PI ST LOUIS PA 11830 WESTLINE INDUSTRIAL DR, ST LOUIS, MO 63146-3318 SN 0194-5998 J9 OTOLARYNG HEAD NECK JI Otolaryngol. Head Neck Surg. PD MAR PY 1993 VL 108 IS 3 BP 220 EP 224 PG 5 WC Otorhinolaryngology; Surgery SC Otorhinolaryngology; Surgery GA KU224 UT WOS:A1993KU22400003 PM 8464633 ER PT J AU EDGAR, KA SCHLESINGER, AE ROYSTER, RM DEENEY, VFX AF EDGAR, KA SCHLESINGER, AE ROYSTER, RM DEENEY, VFX TI ILIO-PSOAS ABSCESS IN NEONATES SO PEDIATRIC RADIOLOGY LA English DT Article AB We report two cases of primary ilio-psoas abscess in neonates diagnosed by CT and sonography. Ilio-psoas abscess is extremely uncommon in this age group. C1 UNIV MICHIGAN,CS MOTT CHILDRENS HOSP,DEPT RADIOL,200 E HOSP DR,ANN ARBOR,MI 48109. WILFORD HALL USAF MED CTR,DEPT ORTHOPED SURG,LACKLAND AFB,TX 78236. OSCHNER CLIN,DEPT ORTHOPED SURG,NEW ORLEANS,LA 70121. NR 5 TC 14 Z9 14 U1 0 U2 1 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0301-0449 J9 PEDIATR RADIOL JI Pediatr. Radiol. PD MAR PY 1993 VL 23 IS 1 BP 51 EP 52 DI 10.1007/BF02020223 PG 2 WC Pediatrics; Radiology, Nuclear Medicine & Medical Imaging SC Pediatrics; Radiology, Nuclear Medicine & Medical Imaging GA KT040 UT WOS:A1993KT04000014 PM 8469593 ER PT J AU GREENBERG, DN YODER, BA CLARK, RH BUTZIN, CA NULL, DM AF GREENBERG, DN YODER, BA CLARK, RH BUTZIN, CA NULL, DM TI EFFECT OF MATERNAL RACE ON OUTCOME OF PRETERM INFANTS IN THE MILITARY SO PEDIATRICS LA English DT Article DE BIRTH WEIGHT; GESTATIONAL AGE; LOW BIRTH WEIGHT; INFANT MORTALITY; RACE ID LOW-BIRTH-WEIGHT; SMALL BLACK INFANTS; NEONATAL-MORTALITY; GESTATIONAL-AGE; RACIAL-DIFFERENCES; RISK-FACTORS; WHITE INFANTS; PRENATAL-CARE; CALIFORNIA; MORBIDITY AB Previous studies suggest that low birth weight black infants have less morbidity and birth-weight-specific mortality during the perinatal period than low birth weight white infants. We studied the effect of maternal race on outcome in preterm infants born at a military hospital that offers free access to obstetric and neonatal care. Between January 1, 1986, and December 31, 1991, data were prospectively collected on all 667 infants delivered at Wilford Hall USAF Medical Center with an estimated gestational age of less than 35 weeks. Three hundred ninety-two white infants and 165 black infants were included in the data analysis. The mean (+/-SD) birth weight was 1701 +/- 65 g for white infants and 1462 +/- 66 g for black infants. The mean estimated gestational age was 31.0 +/- 3.2 weeks for white infants and 29.9 +/- 3.8 weeks for black infants. Preeclampsia was more frequent in black mothers than in white mothers for the entire study population (21% vs 14%), but the birth weight differential between races remained after correction for preeclampsia. There were no significant differences between races in stillbirths, gender, maternal age, maternal transfer status, number of prenatal visits, or percentages of mothers with small-for-gestational-age infants, multiple-gestation infants, prolonged rupture of membranes, or initial prenatal visit during the first trimester. Intraventricular hemorrhage was more frequent in white infants at 27 through 29 weeks estimated gestational age (50% vs 13%). There were no significant differences between the two groups in survival or in the occurrence of severe intraventricular hemorrhage or bronchopulmonary dysplasia. It is concluded that preterm black infants are smaller than preterm white infants when matched for gestational age despite essentially equal utilization of prenatal care. However, maternal race has little direct effect on the survival of liveborn preterm infants in this population. C1 WILFORD HALL USAF MED CTR,CLIN INVEST DIRECTORATE,LACKLAND AFB,TX 78236. RP GREENBERG, DN (reprint author), WILFORD HALL USAF MED CTR,DEPT PEDIAT,SGHP,2200 BERQUIST DR,SUITE 1,LACKLAND AFB,TX 78236, USA. NR 35 TC 15 Z9 15 U1 0 U2 0 PU AMER ACAD PEDIATRICS PI ELK GROVE VILLAGE PA 141 NORTH-WEST POINT BLVD, ELK GROVE VILLAGE, IL 60007-1098 SN 0031-4005 J9 PEDIATRICS JI Pediatrics PD MAR PY 1993 VL 91 IS 3 BP 572 EP 577 PG 6 WC Pediatrics SC Pediatrics GA KP638 UT WOS:A1993KP63800010 PM 8441561 ER PT J AU CHASTAIN, DO AF CHASTAIN, DO TI AMUSED NOT SADDENED SO PEDIATRICS LA English DT Letter RP CHASTAIN, DO (reprint author), WILFORD HALL USAF MED CTR,DEPT PEDIAT,LACKLAND AFB,TX 78236, USA. NR 2 TC 0 Z9 0 U1 0 U2 0 PU AMER ACAD PEDIATRICS PI ELK GROVE VILLAGE PA 141 NORTH-WEST POINT BLVD, ELK GROVE VILLAGE, IL 60007-1098 SN 0031-4005 J9 PEDIATRICS JI Pediatrics PD MAR PY 1993 VL 91 IS 3 BP 681 EP 681 PG 1 WC Pediatrics SC Pediatrics GA KP638 UT WOS:A1993KP63800044 PM 8441589 ER PT J AU PARTHASARATHY, TA RAO, SI DIMIDUK, DM AF PARTHASARATHY, TA RAO, SI DIMIDUK, DM TI MOLECULAR STATICS SIMULATIONS OF CORE STRUCTURES AND MOTION OF DISLOCATIONS IN NIAL SO PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES LA English DT Article ID CENTERED CUBIC METALS; 110 SCREW DISLOCATIONS; NON-GLIDE STRESSES; SINGLE-CRYSTALS; ANTIPHASE BOUNDARIES; SLIP SYSTEMS; ALLOYS; DEFORMATION; BEHAVIOR AB Possible dislocation core structures in NiAl were studied using molecular statics calculations with an empirical many-body interatomic potential developed specifically for NiAl within the embedded-atom method. The cores were examined under stress, and the stress required to initiate motion was used to estimate the relative mobility of the dislocations. Dislocations with Burgers vectors of a[001], a[110] and a[111] and of edge, screw and mixed characters were studied. The glide planes examined included the {110}, {112} and {100} planes. The results were compared with reported experimental observations and the simulation results were found to be in good agreement and/or consistent with most experimental observations to date. The results suggest that atomic simulations may offer a significant advantage over the continuum models in inderstanding the slip response of NiAl. C1 NATL RES COUNCIL,WL,MLLM,WRIGHT PATTERSON AFB,OH 45433. WRIGHT LAB,WL,MLLM,WRIGHT PATTERSON AFB,OH 45433. RP PARTHASARATHY, TA (reprint author), UES INC,DAYTON,OH 45432, USA. RI Parthasarathy, Triplicane/B-7146-2011 OI Parthasarathy, Triplicane/0000-0002-5449-9754 NR 42 TC 40 Z9 40 U1 1 U2 2 PU TAYLOR & FRANCIS LTD PI LONDON PA ONE GUNDPOWDER SQUARE, LONDON, ENGLAND EC4A 3DE SN 0141-8610 J9 PHILOS MAG A JI Philos. Mag. A-Phys. Condens. Matter Struct. Defect Mech. Prop. PD MAR PY 1993 VL 67 IS 3 BP 643 EP 662 PG 20 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Physics, Applied; Physics, Condensed Matter SC Materials Science; Metallurgy & Metallurgical Engineering; Physics GA KW571 UT WOS:A1993KW57100007 ER PT J AU DIMIDUK, DM THOMPSON, AW WILLIAMS, JC AF DIMIDUK, DM THOMPSON, AW WILLIAMS, JC TI THE COMPOSITIONAL DEPENDENCE OF ANTIPHASE-BOUNDARY ENERGIES AND THE MECHANISM OF ANOMALOUS FLOW IN NI3AL ALLOYS SO PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES LA English DT Article ID 110 SCREW DISLOCATIONS; LI-2 ORDERED ALLOYS; CORE STRUCTURE; SUPERLATTICE DISLOCATIONS; WEAK-BEAM; ROOM-TEMPERATURE; FAULT ENERGIES; YIELD BEHAVIOR; DISSOCIATION; STRESS AB The theory of the anomalous flow behaviour of L1(2) compounds has developed over the last 30 years. This theory has a foundation in the early estimates of the crystallographic anisotropy of antiphase-boundary (APB) energy in these compounds. In spite of this critical aspect of the theory, it is only in the last 5 years that electron microscopy has been employed to quantify the APB energies and to determine the detailed nature of dislocation structures at each stage of deformation. The present study examined binary Ni3Al single crystals having compositions which span the single-phase region, and selected ternary compositions expected to have a dominant influence on either {001} or {111} plane APB energies. Crystals were deformed in compression at an orientation near the [001] direction over the temperature range from -196 to 700-degrees-C. Weak-beam dark-field microscopy was employed to quantify the APB energies and the APB energy anisotropy over the composition range. Experimental uncertainties associated with the weak-beam dark-field technique were evaluated with regard to their influence on determining the chemical dependences of the fault energies. Results from the deformation experiments suggest that the mechanism governing the increase in flow stress with temperature is operative at temperatures as low as -196-degrees-C. The findings indicate a lack of correlation between the APB energy anisotropy ratio and the strength of the alloy. Further, little correlation exists between the magnitude of the individual fault energies and the flow stress. C1 CARNEGIE MELLON UNIV,DEPT MET ENGN & MAT SCI,PITTSBURGH,PA 15213. GE,ENGN MAT & TECHNOL LAB,CINCINNATI,OH 45215. RP DIMIDUK, DM (reprint author), WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433, USA. NR 49 TC 60 Z9 61 U1 0 U2 5 PU TAYLOR & FRANCIS LTD PI LONDON PA ONE GUNDPOWDER SQUARE, LONDON, ENGLAND EC4A 3DE SN 0141-8610 J9 PHILOS MAG A JI Philos. Mag. A-Phys. Condens. Matter Struct. Defect Mech. Prop. PD MAR PY 1993 VL 67 IS 3 BP 675 EP 698 PG 24 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Physics, Applied; Physics, Condensed Matter SC Materials Science; Metallurgy & Metallurgical Engineering; Physics GA KW571 UT WOS:A1993KW57100009 ER PT J AU CORDARO, JF AF CORDARO, JF TI INTERPRETATION OF THE OPTICAL-ABSORPTION BY INDIUM IONS IN ZINC-OXIDE SO PHYSICA B-CONDENSED MATTER LA English DT Article ID ZNO; FILMS AB The total optical reflectance, R(infinity) of indium-doped zinc oxide powders was measured over the wavelength range from 350 to 750 nm. The indium contents of the powders were from 119 to 255 ppm. Indium, which in solid solution forms a shallow, donor-like state in ZnO, produces a uniform decrease in the optical reflectance of ZnO powder over the visible spectrum. From the behavior of the remission function f(R(infinity)) with respect to the In ion density N the optical absorption coefficient k is shown to be nonlinear with N, exhibiting an exponential dependence. The data can be interpreted to indicate that the donor electrons on the In are interacting among In ions, as both pair-wise In interactions and interactions of higher orders. It is demonstrated by experiment that the dependence of the In optical cross section upon ion density can be represented by an effective optical cross section for In given by sigma(eff) = sigma exp((4/3)pia3N) where sigma is the photoionization cross section for the In ion, and a is the effective Bohr radius of the donor electron about the defect. C1 USAF,PHILLIPS LAB,KIRTLAND AFB,NM 87117. NR 21 TC 1 Z9 1 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4526 J9 PHYSICA B JI Physica B PD MAR PY 1993 VL 183 IS 3 BP 303 EP 311 DI 10.1016/0921-4526(93)90041-4 PG 9 WC Physics, Condensed Matter SC Physics GA KW559 UT WOS:A1993KW55900008 ER PT J AU WOODWARD, PJ WAGNER, BJ FARLEY, TE AF WOODWARD, PJ WAGNER, BJ FARLEY, TE TI MR IMAGING IN THE EVALUATION OF FEMALE INFERTILITY SO RADIOGRAPHICS LA English DT Article DE ENDOMETRIOSIS; MYOMA; STERILITY; UTERUS, ABNORMALITIES; UTERUS, MR ID MULLERIAN ANOMALIES; UTERINE LEIOMYOMAS; HYSTEROSALPINGOGRAPHY; ADENOMYOSIS; DIAGNOSIS; UTERUS; ENDOMETRIOSIS AB Magnetic resonance (MR) imaging has proved useful in evaluating various conditions associated with female infertility. With T2-weighted pulse sequences, uterine zonal anatomy can be clearly delineated, and with images obtained in a plane coronal and perpendicular to the long axis of the uterus, the external uterine contour can be evaluated. This latter capability allows the differentiation of a bicornuate uterus from a septate one, a distinction that has not been possible with hysterosalpingography and that enables improved treatment planning. MR imaging accurately demonstrates leiomyomas, providing improved preoperative localization compared with that achievable with hysterosalpingography or ultrasonography, and may be useful in differentiating these tumors from adenomyosis. Endometriosis can be detected with MR imaging, but laparoscopy is more reliable for diagnosis and staging. Although the use of MR imaging is not indicated in every evaluation, the modality is valuable in certain settings, especially those that involve differentiation of congenital anomalies and localization of leiomyomas. In these settings, use of MR imaging can obviate more invasive procedures, such as laparoscopy. C1 WILFORD HALL USAF MED CTR,DEPT RADIOL,LACKLAND AFB,TX 78236. RP WOODWARD, PJ (reprint author), UNIV UTAH,MED CTR,DEPT RADIOL,SALT LAKE CITY,UT 84132, USA. NR 34 TC 30 Z9 32 U1 0 U2 0 PU RADIOLOGICAL SOC NORTH AMER PI EASTON PA 20TH AND NORTHAMPTON STS, EASTON, PA 18042 SN 0271-5333 J9 RADIOGRAPHICS JI Radiographics PD MAR PY 1993 VL 13 IS 2 BP 293 EP 310 PG 18 WC Radiology, Nuclear Medicine & Medical Imaging SC Radiology, Nuclear Medicine & Medical Imaging GA KT058 UT WOS:A1993KT05800004 PM 8460221 ER PT J AU DAVIDSON, AJ HAYES, WS HARTMAN, DS MCCARTHY, WF DAVIS, CJ AF DAVIDSON, AJ HAYES, WS HARTMAN, DS MCCARTHY, WF DAVIS, CJ TI RENAL ONCOCYTOMA AND CARCINOMA - FAILURE OF DIFFERENTIATION WITH CT SO RADIOLOGY LA English DT Article DE KIDNEY NEOPLASMS; KIDNEY NEOPLASMS, DIAGNOSIS; ONCOCYTOMA ID CELL CARCINOMA; NEOPLASMS; FEATURES; DIAGNOSIS; TUMOR AB The authors studied the hypothesis that oncocytoma and adenocarcinoma of the kidney can be differentiated with computed tomographic (CT) criteria and that differences would become more apparent as tumors enlarged. On contrast material-enhanced scans, homogeneous attenuation throughout the tumor and a central, sharply marginated, stellate area of low attenuation were considered predictors of oncocytoma. Any area of decreased attenuation in the tumor except for a stellate, central area was used as a predictor of adenocarcinoma. Among oncocytomas larger than 3 cm in diameter, 67% exhibited the criteria for oncocytoma and 33% met the criterion for adenocarcinoma; among smaller oncocytomas, the respective results were 82% and 18%. Among adenocarcinomas larger than 3 cm in diameter, 84% fulfilled the criterion for malignancy and 16% were incorrectly predicted to be oncocytomas; among smaller adenocarcinomas, the respective results were 58% and 42%. The authors conclude that the CT criteria used are poor predictors of the diagnosis of oncocytoma or adenocarcinoma regardless of tumor size. C1 USAF,INST PATHOL,DEPT BIOSTAT & EPIDEMIOL,WASHINGTON,DC 20306. USAF,INST PATHOL,DEPT GENITOURINARY PATHOL,WASHINGTON,DC 20306. JOHNS HOPKINS UNIV,DEPT RADIOL,BALTIMORE,MD 21218. JOHNS HOPKINS UNIV,CTR RADIOL SCI,BALTIMORE,MD 21218. NIH,CTR CLIN,DEPT RADIOL,BETHESDA,MD 20892. PENN STATE UNIV,MILTON S HERSHEY MED CTR,DEPT RADIOL,HERSHEY,PA 17033. RP DAVIDSON, AJ (reprint author), USAF,INST PATHOL,DEPT RADIOL PATHOL,ALASKA AVE & FERN ST,WASHINGTON,DC 20306, USA. NR 20 TC 75 Z9 85 U1 0 U2 0 PU RADIOLOGICAL SOC NORTH AMER PI EASTON PA 20TH AND NORTHAMPTON STS, EASTON, PA 18042 SN 0033-8419 J9 RADIOLOGY JI Radiology PD MAR PY 1993 VL 186 IS 3 BP 693 EP 696 PG 4 WC Radiology, Nuclear Medicine & Medical Imaging SC Radiology, Nuclear Medicine & Medical Imaging GA KN053 UT WOS:A1993KN05300016 PM 8430176 ER PT J AU WHITAKER, WA AF WHITAKER, WA TI ADA - THE PROJECT THE DOD HIGH-ORDER LANGUAGE WORKING GROUP SO SIGPLAN NOTICES LA English DT Article AB The Department of Defense (DoD) High Order Language Commonality program began in 1975 with the goal of establishing a single high order computer programming language appropriate for DoD real-time embedded computer systems. A High Order Language Working Group (HOLWG) was chartered to formulate the DoD requirements for High Order Languages, to evaluate existing languages against those requirements, and to implement the minimal set of languages required for DoD use. Other parts of the effort included administrative initiatives toward the eventual goal. Specifically, DoD Directive 5000.29 which provided that new defense systems should be programmed in a DoD 'approved' and centrally controlled high order language and DoD Instruction 5000.31 which gave the interim defining list of approved languages. The HOLWG language requirements were widely distributed for comment throughout the military and civil communities worldwide. Each successive version of the requirements, from STRAWMAN through STEELMAN, produced a more refined definition of the proposed language. During the requirement development process, it was determined that the set of requirements generated was both necessary and sufficient for all major DoD applications (and the analogous large commercial applications). Formal evaluations were performed on dozens of existing languages. It was concluded that no existing language could be adopted as a single common high order language for the DoD, but that a single language meeting essentially all the requirements was both feasible and desirable. Four contractors were funded to produce competitive prototypes. A first-phase evaluation reduced the designs to two, which were carried to completion. In turn, a single language design was subsequently chosen. Follow-on steps included the test and evaluation of the language, control of the language and validation of compilers. The production of compilers and a program development and tool environment were to be accomplished separately by the individual Service Components. The general requirements and expectations for the environment and the control of the language were addressed in another iterative series of documents. A language validation capability (the test code suite) and associated facilities were established to assure compliance to the language definition of compilers using the name ''Ada''. The name Ada was initially protected by a DoD-owned trademark. C1 USAF,MCLEAN,VA 22103. NR 73 TC 1 Z9 1 U1 0 U2 0 PU ASSOC COMPUTING MACHINERY PI NEW YORK PA 1515 BROADWAY, NEW YORK, NY 10036 SN 0362-1340 J9 SIGPLAN NOTICES JI Sigplan Not. PD MAR PY 1993 VL 28 IS 3 BP 299 EP 331 PG 33 WC Computer Science, Software Engineering SC Computer Science GA KR248 UT WOS:A1993KR24800014 ER PT J AU CAVANAH, SFW DONS, RF AF CAVANAH, SFW DONS, RF TI MCCUNE-ALBRIGHT SYNDROME - HOW MANY ENDOCRINOPATHIES CAN ONE PATIENT HAVE SO SOUTHERN MEDICAL JOURNAL LA English DT Article C1 WILFORD HALL USAF MED CTR,DEPT ENDOCRINOL,LACKLAND AFB,TX 78236. RP CAVANAH, SFW (reprint author), WILFORD HALL USAF MED CTR,SGHM,DEPT MED,2200 BERGQUIST DR,SUITE 1,LACKLAND AFB,TX 78236, USA. NR 15 TC 22 Z9 23 U1 0 U2 0 PU SOUTHERN MEDICAL ASSN PI BIRMINGHAM PA 35 LAKESHORE DR PO BOX 190088, BIRMINGHAM, AL 35219 SN 0038-4348 J9 SOUTHERN MED J JI South.Med.J. PD MAR PY 1993 VL 86 IS 3 BP 364 EP 367 PG 4 WC Medicine, General & Internal SC General & Internal Medicine GA KT726 UT WOS:A1993KT72600023 PM 8451681 ER PT J AU BOWLES, DE PINKOVSKY, DD AF BOWLES, DE PINKOVSKY, DD TI OCCURRENCE OF LARVAL BLACK FLIES AND HORSE FLIES IN AN OZARK HEADWATER STREAM SO SOUTHWESTERN NATURALIST LA English DT Note RP BOWLES, DE (reprint author), USAF,ARMSTRONG LAB,DIV OCCUPAT MED,BROOKS AFB,TX 78235, USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU SOUTHWESTERN ASSN NATURALISTS PI SAN MARCOS PA SOUTHWEST TEXAS STATE UNIV, DEPT BIOLOGY, 601 UNIVERSITY DR, SAN MARCOS, TX 78666 SN 0038-4909 J9 SOUTHWEST NAT JI Southw. Natural. PD MAR PY 1993 VL 38 IS 1 BP 86 EP 87 DI 10.2307/3671655 PG 2 WC Biodiversity Conservation; Ecology SC Biodiversity & Conservation; Environmental Sciences & Ecology GA KR492 UT WOS:A1993KR49200020 ER PT J AU PARKINSON, MD STOUT, RW MAHON, DR CLARDY, WF WARNER, RW WESTON, ME WOLFE, WH AF PARKINSON, MD STOUT, RW MAHON, DR CLARDY, WF WARNER, RW WESTON, ME WOLFE, WH TI VIRAL-HEPATITIS IN THE UNITED-STATES AIR-FORCE, 1980-1989 SO VACCINE LA English DT Article DE VIRAL HEPATITIS; MILITARY PERSONNEL; SEROSURVEY AB Viral hepatitis and its acute and chronic complications continue to pose significant threats to the readiness of military personnel. Knowledge about the specific viral agents and their routes of transmission are important in developing prevention strategies. A recent analysis of hepatitis in the US Navy for the period 1975-1984 is reviewed In order to better characterize the risk of viral hepatitis among US Air Force personnel, a comprehensive review of inpatient and quarters data for hepatitis A, B and 'non-A, non-B' were reviewed from Air Force medical treatment facilities worldwide for the period 1980-1989. Following a discussion of the study methodology, preliminary data and hepatitis type-specific demographic risk variables are discussed. Preliminary results from a hepatitis serosurvey (A, B and C antibody with use of a supplemental validating assay) of the subset of the study cohort who are currently on active duty are briefly reviewed. C1 AOE,DIV EPIDEMIOL RES,ARMSTRONG LAB,BROOKS AFB,TX 78235. NR 1 TC 0 Z9 0 U1 0 U2 0 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0264-410X J9 VACCINE JI Vaccine PD MAR PY 1993 VL 11 IS 5 BP 516 EP 517 DI 10.1016/0264-410X(93)90220-R PG 2 WC Immunology; Medicine, Research & Experimental SC Immunology; Research & Experimental Medicine GA KX418 UT WOS:A1993KX41800006 PM 8488701 ER PT J AU WARNER, RD MATHIS, RE WESTON, ME BIGBEE, LR HENDRIX, CW LUCEY, DR AF WARNER, RD MATHIS, RE WESTON, ME BIGBEE, LR HENDRIX, CW LUCEY, DR TI ESTIMATES OF HUMAN-IMMUNODEFICIENCY-VIRUS (HIV) INCIDENCE AND TRENDS IN THE UNITED-STATES AIR-FORCE SO VACCINE LA English DT Article DE HIV; UNITED-STATES AIR FORCE; INCIDENCE; TRENDS AB The results of HIV screening between early 1986 and February 1991 in the United States Air Force are presented. In this period, two total-force screenings were conducted. HIV incidence estimates are presented by age, ethnicity/race, sex and occupational category. C1 DEF MANPOWER DATA CTR,MONTEREY,CA 93940. WILFORD HALL USAF MED CTR,CLIN INVEST DIRECTORATE,LACKLAND AFB,TX 78236. RP WARNER, RD (reprint author), HUMAN SYST CTR,DIV EPIDEMIOL RES,ARMSTRONG LAB,BROOKS AFB,TX 78235, USA. RI Hendrix, Craig/G-4182-2014 OI Hendrix, Craig/0000-0002-5696-8665 NR 8 TC 6 Z9 6 U1 0 U2 0 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0264-410X J9 VACCINE JI Vaccine PD MAR PY 1993 VL 11 IS 5 BP 534 EP 537 DI 10.1016/0264-410X(93)90225-M PG 4 WC Immunology; Medicine, Research & Experimental SC Immunology; Research & Experimental Medicine GA KX418 UT WOS:A1993KX41800011 PM 8488705 ER PT J AU WOLFE, WH MINER, JC MICHALEK, JE AF WOLFE, WH MINER, JC MICHALEK, JE TI IMMUNOLOGICAL PARAMETERS IN CURRENT AND FORMER UNITED-STATES AIR-FORCE PERSONNEL SO VACCINE LA English DT Article DE IMMUNOLOGICAL PARAMETERS; AIR FORCE PERSONNEL; AGE; RACE; ALCOHOL; SMOKING AB As part of a comprehensive study of current and former US Air Force personnel, an extensive assessment of the immune system of 497 normal male subjects was conducted in 1987. Cell surface marker studies for CD2 (total T cells), CD4 (helper T cells), CD8 (suppressor T cells), CD25 (activated T cells), CD20 (total B cells), CD14 (monocytes), and HLA-DR positive cell populations were measured. The CD4/CD8 ratio was also calculated. Functional stimulation assays were also performed using phytohemagglutinin (PHA) and a culture of mixed lymphocytes. Assays of natural killer cells with and without interleukin-2 stimulation were done. In addition to the distribution and range of values for each assay, statistical analyses were performed to determine the effect of age, race, percentage body fat, tobacco use and alcohol consumption on each variable. Age and alcohol consumption had significant correlation with suppressed counts and functions on nearly all variables while tobacco use was associated with stimulation of both T-cell numbers and function. These findings highlight the importance of using age-specific ranges of normal values for these tests of immunity and the need to consider life-style factors in the interpretation of the laboratory assessment of immune status. RP WOLFE, WH (reprint author), AFMC,DIV EPIDEMIOL RES,AEROSP MED DIRECTORATE,ARMSTRONG LAB,BROOKS AFB,TX 78235, USA. NR 2 TC 18 Z9 18 U1 0 U2 0 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0264-410X J9 VACCINE JI Vaccine PD MAR PY 1993 VL 11 IS 5 BP 545 EP 547 DI 10.1016/0264-410X(93)90228-P PG 3 WC Immunology; Medicine, Research & Experimental SC Immunology; Research & Experimental Medicine GA KX418 UT WOS:A1993KX41800014 PM 8488708 ER PT J AU DOLAN, MJ LUCEY, DR HENDRIX, CW MELCHER, GP SPENCER, GA BOSWELL, RN AF DOLAN, MJ LUCEY, DR HENDRIX, CW MELCHER, GP SPENCER, GA BOSWELL, RN TI EARLY MARKERS OF HIV-INFECTION AND SUBCLINICAL DISEASE PROGRESSION SO VACCINE LA English DT Article DE HIV; MARKERS; NEOPTERIN; BETA(2) MICROGLOBULINS; AZT(TM); CD-29 ID IMMUNODEFICIENCY-VIRUS TYPE-1; AIDS; INDIVIDUALS; COHORT; FOLLOW; ASSAY AB Human immunodeficiency virus (HIV) infection in US Air Force personnel between 1985 and 1989 was examined through a mandatory serological survey, and through annual examination of infected patients. CD4+ cell counts were determined by flow cytometry; beta2 microglobulin and neopterin were measured by immunoassay. During this period 933 cases were found, of which 161 were documented seroconversions, giving an incidence rate of 15.6/100 000 person-years. For patients with >400 CD4 cells mul-1, the rate of initial occurrence of opportunistic infection was 1 and 4% at 1 and 2 years, respectively. HIV-infected persons with <400 CD4+ cells mul-1, in contrast, had rates of 21% at 1 year and 36% at 2 years. In a cross-sectional study, beta2 microglobulin concentration was shown to increase in both the serum and spinal fluid of patients infected with HIV as their blood CD4 numbers declined. Neopterin levels in serum and spinal fluid showed a similar trend, with significantly lower neopterin concentrations in the group that had >1000 CD4+ T cells compared to the 0-600 CD4+ cell group. Longitudinal studies included correlation of HIV p24 antigen with CD4 counts over a 1 year period. The p24 antigen-positive group had a 21% decline in CD4+ T cells, while the antigen-negative group had a 14% decline. Specific helper T-cell subsets were also examined over a 6 month period. A significant decline was seen in the CD4+/CD29+, CD4+/CD45R+, and overall CD4+ subsets which was not seen in AZT(TM)-treated patients. A significant increase in the CD4+/CD29+ memory T-cell subset, which is responsible for response to recall antigens and is capable of gamma-interferon secretion, was noted in the AZT-treated group. RP DOLAN, MJ (reprint author), WILFORD HALL USAF MED CTR,DEPT INFECT DIS,LACKLAND AFB,TX 78236, USA. RI Hendrix, Craig/G-4182-2014 OI Hendrix, Craig/0000-0002-5696-8665 NR 12 TC 6 Z9 6 U1 0 U2 1 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0264-410X J9 VACCINE JI Vaccine PD MAR PY 1993 VL 11 IS 5 BP 548 EP 551 DI 10.1016/0264-410X(93)90229-Q PG 4 WC Immunology; Medicine, Research & Experimental SC Immunology; Research & Experimental Medicine GA KX418 UT WOS:A1993KX41800015 PM 8098175 ER PT J AU ARAGON, J WESTON, M WARNER, R AF ARAGON, J WESTON, M WARNER, R TI ANALYSIS OF DISEASE PROGRESSION FROM CLINICAL OBSERVATIONS OF UNITED-STATES AIR-FORCE ACTIVE DUTY MEMBERS INFECTED WITH THE HUMAN-IMMUNODEFICIENCY-VIRUS - DISTRIBUTION OF AIDS SURVIVAL-TIME FROM INTERVAL-CENSORED OBSERVATIONS SO VACCINE LA English DT Article DE CONCAVE PROGRAMMING PROBLEM; NONPARAMETRIC MAXIMUM LIKELIHOOD ESTIMATOR AB A non-parametric estimator of the AIDS survival time (after developing AIDS) is computed for the AIDS data set from the US Air Force (USAF). Survival times are unobservable. They are censored by the screening mechanism. The Armstrong Laboratory's Epidemiologic Research Division maintains data on over 954 active duty US Air Force (USAF) individuals who tested positive for human immunodeficiency virus (HIV) antibodies. Many have been clinically evaluated seven times since 1986. The HIV-positive individual is classified in seven stages of the disease complex as time progresses. Exact times of transition from one stage to the next are unknown. It is known that transition occurred between two consecutive evaluations. The aim of this study is to analyse distributions of the times that individuals spend in each stage of the HIV disease complex. We will discuss methods used to obtain non-parametric estimators of the distribution of times that individuals spend in stage 6. Finally, it is hoped to model the median time spent in each stage of the disease. This, along with incidence and separation data, will allow the prediction of the impact of HIV disease on USAF individuals and medical care systems. C1 AOES,DIV EPIDEMIOL RES,ARMSTRONG LAB,BROOKS AFB,TX 78235. HARVARD UNIV,SCH PUBL HLTH,DEPT BIOSTAT,BOSTON,MA 02115. NR 6 TC 0 Z9 0 U1 0 U2 0 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0264-410X J9 VACCINE JI Vaccine PD MAR PY 1993 VL 11 IS 5 BP 552 EP 554 DI 10.1016/0264-410X(93)90230-U PG 3 WC Immunology; Medicine, Research & Experimental SC Immunology; Research & Experimental Medicine GA KX418 UT WOS:A1993KX41800016 PM 8488709 ER PT J AU BROWN, GR RUNDELL, JR MCMANIS, SE KENDALL, SN JENKINS, RA AF BROWN, GR RUNDELL, JR MCMANIS, SE KENDALL, SN JENKINS, RA TI NEUROPSYCHIATRIC MORBIDITY IN EARLY HIV DISEASE - IMPLICATIONS FOR MILITARY OCCUPATIONAL FUNCTION SO VACCINE LA English DT Article DE HIV; NEUROPSYCHIATRIC; PSYCHOSOCIAL; SUICIDE; PSYCHIATRY; DIAGNOSIS ID HUMAN-IMMUNODEFICIENCY-VIRUS; SOCIAL SUPPORT; PSYCHIATRIC-DISORDERS; SCREENING-PROGRAM; UNITED-STATES; HEALTH; AIDS; PREVALENCE; DEPRESSION; INFECTION AB The Military Medical Consortium for Applied Retroviral Research Program's (MMCARR) Behavioral Medicine Human Immunodeficiency Virus (HIV) Research component is conducting a tri-service, comprehensive, and longitudinal research study in military HIV-infected personnel at all stages of infection. Identification of neuropsychiatric and psychosocial outcomes and their determinants will help the military minimize the impact of the HIV epidemic on military readiness and function. Neuropsychiatric and psychosocial findings are among the most common complications seen in early HIV disease and among the most likely to have an adverse impact on military readiness and function. The study has demonstrated that the.average HIV-infected service person experiences at least transient military occupational difficulty following notification of HIV status. More than 15% at any given time have levels of clinical or subclinical anxiety or depression that are referrable for mental health intervention. Ten per cent of study subjects have a current major mood disorder and 5% have a psychoactive substance use disorder. Finally, 17% of study subjects have experienced serious suicidal ideation or behaviours at least once since notification of seropositivity. Fortunately, however, data also indicate at least partial effectiveness of current primary, secondary and tertiary preventive efforts. Only about 1% of Air Force HIV-infected persons are discharged for psychiatric reasons prior to eventual medical discharge. Further, a larger majority of active-duty patients demonstrate solid military occupational and social performance. Though military HIV neurobehavioural research is still in progress, preliminary data identify social support and pre-HIV psychiatric predisposition as important factors associated with current neuropsychiatric status. C1 USAF,SURGEON GEN OFF,WASHINGTON,DC 20330. RP BROWN, GR (reprint author), WILFORD HALL USAF MED CTR,DEPT PSYCHIAT,HENRY M JACKSON FDN,BERQUIST DR,LACKLAND AFB,TX 78236, USA. NR 60 TC 6 Z9 7 U1 4 U2 6 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0264-410X J9 VACCINE JI Vaccine PD MAR PY 1993 VL 11 IS 5 BP 560 EP 569 DI 10.1016/0264-410X(93)90232-M PG 10 WC Immunology; Medicine, Research & Experimental SC Immunology; Research & Experimental Medicine GA KX418 UT WOS:A1993KX41800018 PM 8488711 ER PT J AU CLARDY, WF AF CLARDY, WF TI SUSCEPTIBILITY IN USAF RECRUITS TO VACCINE-PREVENTABLE DISEASES SO VACCINE LA English DT Article DE MUMPS; UNDERIMMUNIZATION; SUSCEPTIBILITY ID MUMPS AB Because of increasing incidence Of mumps in a cohort of underimmunized young adults and the concern about the impact of this disease on the USAF recruit population, two studies were undertaken. These studies took a retrospective look at mumps in the active duty population, a cost analysis of immunizing all or only susceptible individuals, the actual antibody response in a group of 276 recruits in basic training, the demographic patterns of susceptibilty and the types of previous immunization documentation. The conclusions were that the numbers of new mumps cases per year did not justify immunizing all recruits or screening for mumps antibodies and only immunizing known susceptibles. RP CLARDY, WF (reprint author), DIV EPIDEMIOL,AEROSP MED DIRECTORATE,ARMSTRONG LAB,BROOKS AFB,TX 78235, USA. NR 11 TC 7 Z9 7 U1 0 U2 1 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0264-410X J9 VACCINE JI Vaccine PD MAR PY 1993 VL 11 IS 5 BP 573 EP 575 DI 10.1016/0264-410X(93)90234-O PG 3 WC Immunology; Medicine, Research & Experimental SC Immunology; Research & Experimental Medicine GA KX418 UT WOS:A1993KX41800020 PM 8488713 ER PT J AU HEIDEMAN, KF STEWART, TR MONINGER, WR REAGANCIRINCIONE, P AF HEIDEMAN, KF STEWART, TR MONINGER, WR REAGANCIRINCIONE, P TI THE WEATHER INFORMATION AND SKILL EXPERIMENT (WISE) - THE EFFECT OF VARYING LEVELS OF INFORMATION ON FORECAST SKILL SO WEATHER AND FORECASTING LA English DT Article AB The relationship between the quality and quantity of information available to meteorologists and the skill of their forecasts was investigated. Twelve meteorologists were asked to make probabilistic forecasts of significant and severe weather events under three information conditions. Forecast accuracy was generally low. As the amount and quality of the information increased substantially, there was a modest increase in the accuracy of the forecasts. However, the results suggest that the forecasters were least consistent when they had the most information to work with, partially reducing the benefits of the increased information. RP HEIDEMAN, KF (reprint author), USAF,PHILLIPS LAB,GEOPHYS DIRECTORATE,BEDFORD,MA 01731, USA. RI moninger, william/G-4910-2015 OI moninger, william/0000-0003-0716-4721 NR 0 TC 12 Z9 12 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0882-8156 J9 WEATHER FORECAST JI Weather Forecast. PD MAR PY 1993 VL 8 IS 1 BP 25 EP 36 DI 10.1175/1520-0434(1993)008<0025:TWIASE>2.0.CO;2 PG 12 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA LL626 UT WOS:A1993LL62600002 ER PT J AU DENNIS, ST PALAZOTTO, AN AF DENNIS, ST PALAZOTTO, AN TI THE EFFECT OF NONLINEAR CURVATURE STRAINS ON THE BUCKLING OF LAMINATED PLATES AND SHELLS SO INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING LA English DT Article ID SHEAR DEFORMATION-THEORY; COMPOSITE PLATES; TRANSVERSE-SHEAR; NONLINEAR-THEORY; STABILITY AB A versatile geometrically non-linear curved shell finite element formulation includes exact Green's strain displacement for the inplane strains and linear strain displacement for the transverse shear strains. Additional coupling results for membrane-bending and membrane-transverse shear due to non-linear curvature strain-displacement relations. Additional non-linear terms that are a function of the shell's radius of curvature are also present. The approach is applied to the bifurcation buckling of axially compressed flat plates and transversely pressure-loaded cylindrical shell panels. The method gives a more flexible result for the plates compared to von Karman non-linearity. Additionally, larger buckling pressures are found for shell panels. The effects of transverse shear flexibility are evident. C1 USAF,INST TECHNOL,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433. RP DENNIS, ST (reprint author), USAF ACAD,DEPT ENGN MECH,COLORADO SPRINGS,CO 80840, USA. NR 30 TC 4 Z9 4 U1 0 U2 2 PU JOHN WILEY & SONS LTD PI W SUSSEX PA BAFFINS LANE CHICHESTER, W SUSSEX, ENGLAND PO19 1UD SN 0029-5981 J9 INT J NUMER METH ENG JI Int. J. Numer. Methods Eng. PD FEB 28 PY 1993 VL 36 IS 4 BP 595 EP 609 DI 10.1002/nme.1620360404 PG 15 WC Engineering, Multidisciplinary; Mathematics, Interdisciplinary Applications SC Engineering; Mathematics GA KL021 UT WOS:A1993KL02100003 ER PT J AU RYAN, KL FREI, MR BERGER, RE JAUCHEM, JR AF RYAN, KL FREI, MR BERGER, RE JAUCHEM, JR TI PRESSOR-RESPONSES TO NITRIC-OXIDE INHIBITION IN KETAMINE-ANESTHETIZED AND PENTOBARBITAL-ANESTHETIZED RATS SO FASEB JOURNAL LA English DT Meeting Abstract C1 ARMSTRONG LAB,DIV RADIOFREQUENCY RADIAT,BROOKS AFB,TX. OPERAT TECHNOL CORP,SAN ANTONIO,TX 78229. TRINITY UNIV,DEPT BIOL,SAN ANTONIO,TX 78284. NR 1 TC 1 Z9 1 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD FEB 23 PY 1993 VL 7 IS 4 BP A765 EP A765 PN 2 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA KP975 UT WOS:A1993KP97501409 ER PT J AU NELSON, AG WOLF, EG HEARON, CM LI, B AF NELSON, AG WOLF, EG HEARON, CM LI, B TI HYPERBARIC OXYGENATION (HBO) AND METABOLOIC ENZYMES IN THE HEART SO FASEB JOURNAL LA English DT Meeting Abstract C1 LOUISIANA STATE UNIV,DEPT KINESIOL,BATON ROUGE,LA 70803. USAF,AL,AOH,BROOKS AFB,TX 78235. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD FEB 19 PY 1993 VL 7 IS 3 BP A449 EP A449 PN 1 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA KP974 UT WOS:A1993KP97402599 ER PT J AU SHERRY, CJ DOYLE, JM MASON, PA AF SHERRY, CJ DOYLE, JM MASON, PA TI THE EFFECTS OF MICROWAVE EXPOSURE ON C-FOS EXPRESSION IN THE RAT-BRAIN SO FASEB JOURNAL LA English DT Meeting Abstract C1 USAF,ARMSTRONG LAB,OPERAT TECHNOL,SYST RES LABS,BROOKS AFB,TX 78235. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD FEB 19 PY 1993 VL 7 IS 3 BP A272 EP A272 PN 1 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA KP974 UT WOS:A1993KP97401578 ER PT J AU SUTHERLAND, RL REA, E NATARAJAN, LV POTTENGER, T FLEITZ, PA AF SUTHERLAND, RL REA, E NATARAJAN, LV POTTENGER, T FLEITZ, PA TI 2-PHOTON ABSORPTION AND 2ND HYPERPOLARIZABILITY MEASUREMENTS IN DIPHENYLBUTADIENE BY DEGENERATE 4-WAVE-MIXING SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID SPECTROSCOPY; STATE; MEDIA AB We have investigated two-photon absorption (TPA) in diphenylbutadiene at 532 nm using degenerate four-wave mixing (DFWM) of nanosecond laser pulses. We present a theory which describes the development of double-peaked phase conjugate pulses produced in DFWM due to TPA-induced gratings superimposed on the usual electronic third-order processes. Our analysis suggests a novel technique for measuring both the real and imaginary parts of the third-order susceptibility of a molecular solution, hence leading to a determination of the TPA cross section sigma2 and second hyperpolarizability gamma of the solute molecules. Applying this experimental technique to diphenylbutadiene in chloroform, we obtain sigma2 = (40 +/- 8) X 10(-50) cm-4 s/photon-molecule and \gamma\ = (420 +/- 80) X 10(-36) esu for this diphenyl polyene. We show that these values are in agreement with related measurements in diphenylbutadiene, and that they are consistent with a two-photon resonance near 39 500 cm-1. The DFWM measurement technique we describe is very sensitive and should be applicable for measuring the two-photon spectra of a variety of molecules. C1 WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RP SUTHERLAND, RL (reprint author), SCI APPLICAT INT CORP,101 WOODMAN DR,DAYTON,OH 45431, USA. NR 21 TC 9 Z9 9 U1 1 U2 1 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD FEB 15 PY 1993 VL 98 IS 4 BP 2593 EP 2603 DI 10.1063/1.464141 PG 11 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA KP938 UT WOS:A1993KP93800010 ER PT J AU COOPER, TM TONDIGLIA, V NATARAJAN, LV SHAPIRO, M OBERMEIER, K CRANE, RL AF COOPER, TM TONDIGLIA, V NATARAJAN, LV SHAPIRO, M OBERMEIER, K CRANE, RL TI HOLOGRAPHIC GRATING FORMATION IN POLY(SPIROPYRAN L-GLUTAMATE) SO APPLIED OPTICS LA English DT Article DE HOLOGRAPHIC GRATING; PHOTOCHROMIC POLYPEPTIDE; POLY(SPIROPYRAN L-GLUTAMATE) ID SPECTROSCOPY AB An argon-ion laser interferometer (0.3638 or 0.488 mum) wrote photoreversible holographic grating (fringe spacing 0.39-100 mum) on spin-cast thin films (5 mum thick) of poly(spiropyran 1-glutamate). C1 SCI APPLICAT INT CORP, DAYTON, OH 45432 USA. DE PAUW UNIV, GREENCASTLE, IN 46135 USA. RP COOPER, TM (reprint author), USAF, WRIGHT LAB, MAT DIRECTORATE, MAIL CODE WL-MLPJ, WRIGHT PATTERSON AFB, OH 45433 USA. NR 15 TC 16 Z9 16 U1 0 U2 1 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD FEB 10 PY 1993 VL 32 IS 5 BP 674 EP 677 PG 4 WC Optics SC Optics GA KL510 UT WOS:A1993KL51000004 PM 20802738 ER PT J AU CIPPERLY, GE AF CIPPERLY, GE TI EXTRACTING NUMBER AND RELATIVE POSITIONS OF MULTIPLE EXTENDED OBJECTS FROM AUTOCORRELATION DATA SO APPLIED OPTICS LA English DT Article DE AUTOCORRELATION SUPPORT UNFOLDING; PHASE RETRIEVAL; IMAGE RECONSTRUCTION ID PHASE-RETRIEVAL; SPECKLE PATTERNS; SUPPORT; RECONSTRUCTION; UNIQUENESS AB Information describing a scene must often be, inferred from its spatial autocorrelation function (or its power spectrum). Such information can be used to establish constraints or trial solutions in iterative image reconstruction, or it can be used to fit scene object models directly to nonimage data. The most basic scene information consists of the number of objects present and their relative positions, which is prerequisite to describing the individual objects. Unfolding point-object positions from a noise-free autocorrelation has been addressed previously. Many applications involve extended objects, however, inviting the problematic overlap of autocorrelation features. Furthermore, data are rarely noise-free. A method of logically unfolding object positions from an autocorrelation is described, and the impact of noise, redundancy, and finite object size on the process is assessed. RP CIPPERLY, GE (reprint author), USAF, INST TECHNOL, DEPT ENGN PHYS, WRIGHT PATTERSON AFB, OH 45433 USA. NR 22 TC 0 Z9 0 U1 0 U2 1 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD FEB 10 PY 1993 VL 32 IS 5 BP 699 EP 706 PG 8 WC Optics SC Optics GA KL510 UT WOS:A1993KL51000008 PM 20802742 ER PT J AU BLATT, SP LUCEY, CR BUTZIN, CA HENDRIX, CW LUCEY, DR AF BLATT, SP LUCEY, CR BUTZIN, CA HENDRIX, CW LUCEY, DR TI TOTAL LYMPHOCYTE COUNT AS A PREDICTOR OF ABSOLUTE CD4+ COUNT AND CD4+ PERCENTAGE IN HIV-INFECTED PERSONS SO JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION LA English DT Article ID HUMAN-IMMUNODEFICIENCY-VIRUS; HOMOSEXUAL MEN; RISK; COHORT; AIDS; PNEUMONIA; DECLINE; TYPE-1 AB Objective.-To determine whether the total lymphocyte count (TLC) accurately predicts a low absolute CD4+ T-cell count and CD4+ percentage in persons infected with human immunodeficiency virus (HIV). Design.-Retrospective analysis of data collected in the US Air Force HIV Natural History Study. Setting.-Military medical center that performs annual medical evaluation of all HIV-infected US Air Force personnel. Patients.-A total of 828 consecutive patients with no prior history of zidovudine use, evaluated from January 1985 through July 1991. For patients with multiple observations over time, a single data point within each 6-month interval was included in the analysis (N=2866). Measurements and Main Results.-The sensitivity, specificity, and likelihood ratio (LR) of the TLC, in the range of 1.00x10(9)/L to 2.00x10(9)/L, in predicting an absolute CD4+ T-cell count less than 0.20x10(9)/L or a CD4+ percentage less than 20% were calculated. In addition, the LR and pretest probability of significant immunosuppression were used to calculate posttest probabilities of a low CD4+ count for a given TLC value. The LR of the TLC in predicting an absolute CD4+ count <0.20x10(9)/L increased from 2.4 (95% confidence interval, 2.2 to 2.5) for all TLCs less than 2.00x10(9)/L, to 33.2 (95% confidence interval, 24.1 to 45.7) for all TLCs less than 1.00x10(9)/L. The specificity for this prediction increased from 57% to 97% over this range. The LR also increased from 1.4 (95% confidence interval, 1.3 to 1.6) for all TLCs less than 2.00x10(9)/L to 9.7 (95% confidence interval, 7.1 to 13.1) for all TLCs less than 1.00x10(9)/L in predicting a CD4+ percentage less than 20%. Conclusions.-The TLC, between 1.00x10(9)/L and 2.00x10(9)/L, appears to be a useful predictor of significant immunosuppression as measured by a CD4+ T-cell count less than 0.20x10(9)/L in HIV-infected persons. The LR fora given TLC value and the pretest probability of immunosuppression can be used to determine the posttest probability of significant immunosuppression in individual patients. For example, in a patient with a TLC less than 1.50x10(9)/L and a pretest probability of 16%, the posttest probability of a low CD4+ T-cell count increases to 53%. In contrast, a TLC greater than 2.00x10(9)/L in an individual with a pretest probability of 30% will decrease the posttest probability of a low CD4+ T-cell count to less than 4%. Physicians should find these data useful to help predict the risk for opportunistic infection among HIV-infected persons who present with syndromes that are potentially compatible with opportunistic infection but who have not had recent or prior CD4+ T-cell analysis. C1 WILFORD HALL USAF MED CTR,CLIN INVEST DIRECTORATE,LACKLAND AFB,TX 78236. SW FDN BIOMED RES,CTR AIDS RES,SAN ANTONIO,TX 78284. MIL MED CONSORTIUM APPL RETROVIRAL RES,SAN ANTONIO,TX. WALTER REED ARMY MED CTR,GEN MED SERV,WASHINGTON,DC 20307. RP BLATT, SP (reprint author), WILFORD HALL USAF MED CTR,DEPT MED,INFECT DIS SERV,HIV PROGRAM,SGHMMI HIV,2200 BERGQUIST DR,LACKLAND AFB,TX 78236, USA. RI Hendrix, Craig/G-4182-2014 OI Hendrix, Craig/0000-0002-5696-8665 NR 24 TC 54 Z9 58 U1 0 U2 0 PU AMER MEDICAL ASSOC PI CHICAGO PA 515 N STATE ST, CHICAGO, IL 60610 SN 0098-7484 J9 JAMA-J AM MED ASSOC JI JAMA-J. Am. Med. Assoc. PD FEB 3 PY 1993 VL 269 IS 5 BP 622 EP 626 DI 10.1001/jama.269.5.622 PG 5 WC Medicine, General & Internal SC General & Internal Medicine GA KJ444 UT WOS:A1993KJ44400030 PM 8093628 ER PT J AU CHEN, H AIELLO, F AF CHEN, H AIELLO, F TI TRIMETHYLAMINURIA IN A GIRL WITH PRADER-WILLI SYNDROME AND DEL(15)(Q11Q13) SO AMERICAN JOURNAL OF MEDICAL GENETICS LA English DT Article DE FISH ODOR SYNDROME; FISH ODOR OF SWEAT; URINE; BREATH; DEFICIENT TRIMETHYLAMINE OXIDASE; TRIMETHYLAMINE; SKIN SORES; CHOLINE RESTRICTION DIET; AUTOSOMAL RECESSIVE DISORDER; FLAVIN-CONTAINING MONOOXYGEN ID FISH-ODOR SYNDROME; HYPOPIGMENTATION; DEFICIENCY AB We report on an individual with trimethylaminuria, Prader-Willi syndrome, and del(15) (q11q13). To our knowledge, such an association has never been reported. Skin sores secondary to choline-rich foods and amenable to dietary control have not been described in trimethylaminuria, although they are seen in some patients with Prader-Willi syndrome. Pathogenesis, clinical diagnosis, and management of reported cases with trimethylaminuria are reviewed. Serious social and behavioral problems may result from strong body odor. Amelioration of the ''fish odor'' by dietary choline restriction makes trimethylaminuria detection important. Association of trimethylaminuria with Prader-Willi syndrome and del(15) (q11q13) in this patient is of particular interest. It may represent a contiguous gene syndrome, or deletion of the normal allele leading to expression of a single recessive trimethylaminuria gene, or an unrelated association, such as in Noonan syndrome. However, recent development of mapping of flavin-containing monooxygenase 2 (FMO2), the likely enzyme that is defective in fish odor syndrome, to chromosome Iq probably excludes pathogenetic association of fish odor syndrome with the Prader-Willi syndrome. C1 WRIGHT STATE UNIV,CHILDRENS MED CTR,DAYTON,OH 45435. USAF,WRIGHT PATTERSON MED CTR,DEPT DEV PEDIAT,DAYTON,OH. RP CHEN, H (reprint author), UNIV SO ALABAMA,DEPT MED GENET,ROOM 214,CCCB,MOBILE,AL 36688, USA. NR 41 TC 10 Z9 10 U1 0 U2 0 PU WILEY-LISS PI NEW YORK PA DIV JOHN WILEY & SONS INC 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0148-7299 J9 AM J MED GENET JI Am. J. Med. Genet. PD FEB 1 PY 1993 VL 45 IS 3 BP 335 EP 339 DI 10.1002/ajmg.1320450310 PG 5 WC Genetics & Heredity SC Genetics & Heredity GA KJ118 UT WOS:A1993KJ11800009 PM 8434620 ER PT J AU BISHARA, SE BARRETT, RD SELIM, MI AF BISHARA, SE BARRETT, RD SELIM, MI TI BIODEGRADATION OF ORTHODONTIC APPLIANCES .2. CHANGES IN THE BLOOD LEVEL OF NICKEL SO AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS LA English DT Article ID CONTACT-DERMATITIS; CERVICAL HEADGEAR; CHROMIUM; METAL; ALLERGY; ASTHMA; CARCINOGENICITY; SENSITIVITY; SERUM; POPULATION AB The purpose of this study is to determine whether orthodontic patients accumulate measurable concentrations of nickel in their blood during their initial course of orthodontic therapy. Blood samples were collected at three different time periods: before the placement of orthodontic appliances, 2 months after their placement, and 4 to 5 months after their placement. The study involved 31 subjects, 18 females and 13 males, who had malocclusions that required the use of a fully banded and bonded edgewise appliance. The age of the subjects in the study ranged between 12 and 38 years. The blood samples were frozen and shipped to a commercial medical laboratory for analysis by atomic absorption spectrophotometry. The three blood samples for each patient were analyzed in succession on the same day to eliminate equipment variance that could occur if blood samples were analyzed on separate days. A total of 93 blood samples were sent for analysis. From the findings in this study the following can be concluded: (1) Patients with fully banded and bonded orthodontic appliances did not show either a significant or consistent increase in nickel blood levels during the first 4 to 5 months of orthodontic therapy. (2) Orthodontic therapy using appliances made of alloys containing nickel-titanium did not result in a significant or consistent increase in the blood levels of nickel. The results obtained from both parts of this investigation indicate that orthodontic appliances used, in their ''as-received'' condition, corrode in the oral environment releasing both nickel and chromium, in amounts significantly below the average dietary intake. Furthermore, the biodegradation of orthodontic appliances during the initial 5 months of treatment did not result in significant or consistent increase in the blood level of nickel. C1 UNIV IOWA,COLL MED,DEPT PREVENT MED & ENVIRONM HLTH,IOWA CITY,IA 52242. USAF,IOWA CITY,IA. RP BISHARA, SE (reprint author), UNIV IOWA,COLL DENT,DEPT ORTHODONT,IOWA CITY,IA 52242, USA. NR 65 TC 67 Z9 72 U1 1 U2 4 PU MOSBY-YEAR BOOK INC PI ST LOUIS PA 11830 WESTLINE INDUSTRIAL DR, ST LOUIS, MO 63146-3318 SN 0889-5406 J9 AM J ORTHOD DENTOFAC JI Am. J. Orthod. Dentofac. Orthop. PD FEB PY 1993 VL 103 IS 2 BP 115 EP 119 DI 10.1016/S0889-5406(05)81760-3 PG 5 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA KM634 UT WOS:A1993KM63400008 PM 8427215 ER PT J AU POTERACK, KA AF POTERACK, KA TI WHO USES TRANSESOPHAGEAL ECHOCARDIOGRAPHY IN THE OPERATING-ROOM SO ANESTHESIA AND ANALGESIA LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. NR 1 TC 0 Z9 0 U1 0 U2 0 PU WILLIAMS & WILKINS PI BALTIMORE PA 351 WEST CAMDEN ST, BALTIMORE, MD 21201-2436 SN 0003-2999 J9 ANESTH ANALG JI Anesth. Analg. PD FEB PY 1993 VL 76 IS 2 SU S BP S333 EP S333 PG 1 WC Anesthesiology SC Anesthesiology GA KY039 UT WOS:A1993KY03900331 ER PT J AU RUNG, G SHEPLOCK, G RIEMONDY, S AF RUNG, G SHEPLOCK, G RIEMONDY, S TI TEACHING EFFECTIVENESS OF A NERVE BLOCK SIMULATOR SO ANESTHESIA AND ANALGESIA LA English DT Meeting Abstract C1 PENN STATE UNIV,MILTON S HERSHEY MED CTR,DEPT ANESTHESIA,HERSHEY,PA 17033. WILFORD HALL USAF MED CTR,DEPT ANESTHESIA,LACKLAND AFB,TX 78236. NR 3 TC 0 Z9 0 U1 0 U2 0 PU WILLIAMS & WILKINS PI BALTIMORE PA 351 WEST CAMDEN ST, BALTIMORE, MD 21201-2436 SN 0003-2999 J9 ANESTH ANALG JI Anesth. Analg. PD FEB PY 1993 VL 76 IS 2 SU S BP S364 EP S364 PG 1 WC Anesthesiology SC Anesthesiology GA KY039 UT WOS:A1993KY03900362 ER PT J AU SLAVOSKI, J GRISSOM, T GRISSOM, J BUTZIN, C MCGUIRE, S AF SLAVOSKI, J GRISSOM, T GRISSOM, J BUTZIN, C MCGUIRE, S TI EPIDURAL BLOOD PATCH (EBP) IN THE HIV-POSITIVE PATIENT SO ANESTHESIA AND ANALGESIA LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. NR 0 TC 0 Z9 0 U1 0 U2 0 PU WILLIAMS & WILKINS PI BALTIMORE PA 351 WEST CAMDEN ST, BALTIMORE, MD 21201-2436 SN 0003-2999 J9 ANESTH ANALG JI Anesth. Analg. PD FEB PY 1993 VL 76 IS 2 SU S BP S400 EP S400 PG 1 WC Anesthesiology SC Anesthesiology GA KY039 UT WOS:A1993KY03900397 ER PT J AU HOPPE, ML LAINE, RM KAMPF, J GORDON, MS BURGGRAF, LW AF HOPPE, ML LAINE, RM KAMPF, J GORDON, MS BURGGRAF, LW TI BA[SI(OCH2CH2O)3], A HEXAALKOXYSILICATE SYNTHESIZED FROM SIO2 SO ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH LA English DT Article ID ORGANO-SILICON COMPOUNDS; MOLECULAR-STRUCTURE; PENTACOORDINATE; COMPLEXES; REACTIVITY; NUCLEOPHILES; CHEMISTRY; SILICATES; ANIONS; ROUTE AB The reaction of BaO, SiO2, and an excess of ethylene glycol provides [Ba-Si(OCH2CH2O)3] . 3.25 HO(CH2)2OH, the first amazingly stable hexaalkylsilicate, in 90% yield. This complex was characterized by X-ray crystallography. The reactions with MgO and CaO give analogous compounds; with alkali metal oxides pentacoordinate silicates are formed. C1 UNIV MICHIGAN,DEPT MAT SCI & ENGN,HH DOW BLDG,2300 HAYWARD ST,ANN ARBOR,MI 48109. UNIV MICHIGAN,DEPT CHEM,ANN ARBOR,MI 48109. N DAKOTA STATE UNIV,FARGO,ND 58105. USAF,OFF SCI RES,WASHINGTON,DC 20330. NR 44 TC 39 Z9 39 U1 2 U2 8 PU VCH PUBLISHERS INC PI DEERFIELD BEACH PA 303 NW 12TH AVE, DEERFIELD BEACH, FL 33442-1788 SN 0570-0833 J9 ANGEW CHEM INT EDIT JI Angew. Chem.-Int. Edit. Engl. PD FEB PY 1993 VL 32 IS 2 BP 287 EP 289 DI 10.1002/anie.199302871 PG 3 WC Chemistry, Multidisciplinary SC Chemistry GA KQ285 UT WOS:A1993KQ28500033 ER PT J AU BAROHN, RJ GRONSETH, GS LEFORCE, BR MCVEY, AL MCGUIRE, SA BUTZIN, CA KING, RB AF BAROHN, RJ GRONSETH, GS LEFORCE, BR MCVEY, AL MCGUIRE, SA BUTZIN, CA KING, RB TI PERIPHERAL NERVOUS-SYSTEM INVOLVEMENT IN A LARGE COHORT OF HUMAN-IMMUNODEFICIENCY-VIRUS INFECTED INDIVIDUALS SO ARCHIVES OF NEUROLOGY LA English DT Article ID IMMUNE-DEFICIENCY SYNDROME; NEUROLOGICAL COMPLICATIONS; NEUROPATHY; AIDS; ZIDOVUDINE; LYMPHADENOPATHY; SPECTRUM AB Objective.-In individuals who were infected with the human immunodeficiency virus (HIV) we determined the prevalence of peripheral neuropathies (PNs) and explored the relationship between immunologic competence and nerve function. Design.-Cohort survey. Setting.-US Air Force medical center. Patients.-A population-based cohort of 81 7 individuals, 798 of whom were HIV-positive as identified by the US Air Force HIV screening program from 1985 to 1989. The average age was 29.2 years, and the majority were male with early-stage HIV disease. Main Outcome Measures.-Neurologists examined all subjects for symptoms and signs of PN. We grouped patients by CD4 T-lymphocyte count. We further studied 300 HIV-infected volunteers without clinical evidence of PN by nerve conduction studies. Results.-Twelve of the 798 HIV-positive subjects had symptoms or signs of PN. All patients with PN had CD4 counts of less than 0.30x10(9)/L (300 cells/mm3). Of the 300 HIV-infected volunteers without dinical evidence of PN who had nerve conduction studies performed, 296 had normal nerve conduction study parameters. Subjects in the group with the lowest CD4 count (<0.20x10(9)/L [<200 cells/mm3]) had significantly lower nerve conduction study parameters than subjects in groups with higher CD4 counts (P<.05). Conclusions.-Peripheral nervous system involvement is rare in patients with early HIV infection and is predominantly seen in immunologically compromised, HIV-infected persons. C1 WILFORD HALL USAF MED CTR,DEPT NEUROL,DIV MED,LACKLAND AFB,TX 78236. NR 27 TC 51 Z9 53 U1 0 U2 0 PU AMER MEDICAL ASSOC PI CHICAGO PA 515 N STATE ST, CHICAGO, IL 60610 SN 0003-9942 J9 ARCH NEUROL-CHICAGO JI Arch. Neurol. PD FEB PY 1993 VL 50 IS 2 BP 167 EP 171 PG 5 WC Clinical Neurology SC Neurosciences & Neurology GA KL174 UT WOS:A1993KL17400014 PM 8381649 ER PT J AU SHINDO, ML COSTANTINO, PD FRIEDMAN, CD CHOW, LC AF SHINDO, ML COSTANTINO, PD FRIEDMAN, CD CHOW, LC TI FACIAL SKELETAL AUGMENTATION USING HYDROXYAPATITE CEMENT SO ARCHIVES OF OTOLARYNGOLOGY-HEAD & NECK SURGERY LA English DT Article ID DEMINERALIZED BONE; ALVEOLAR RIDGE; RECONSTRUCTION; HYDROXYLAPATITE; SURGERY; IMPLANT; PROPLAST; GRAFTS; TISSUE AB This study investigates the use of a new calcium phosphate cement, which sets to solid, microporous hydroxy-apatite, for facial bone augmentation. In six dogs, the supraorbital ridges were augmented bilaterally with this hydroxyapatite cement. On one side, the hydroxyapatite cement was placed directly onto the bone within a subperiosteal pocket. On the opposite side, the cement was contained within a collagen membrane tubule and then inserted into a subperiosteal pocket. The use of collagen tubules facilitated easy, precise placement of the cement. All implants maintained their original augmented height throughout the duration of the study. They were well tolerated without extrusion or migration, and there was no significant sustained inflammatory response. Histologic studies, performed at 3, 6, and 9 months revealed that when the volume was placed directly onto bone, progressive replacement of the implant by bone (osseointegration of the hydroxyapatite with the underlying bone) without a loss of volume was observed. In contrast, when the cement-collagen tubule combination was inserted, primarily a fibrous union was noted. Despite such fibrous union, the hydroxyapatite-collagen implant solidly bonded to the underlying bone, and no implant resorption was observed. Hydroxyapatite cement can be used successfully for the experimental augmentation of the craniofacial skeleton and may be applicable for such uses in humans. C1 AMER DENT ASSOC HLTH FDN,PAFFENBARGER RES CTR,GAITHERSBURG,MD. USAF,MED CTR,LACKLAND AFB,TX 78236. LOYOLA UNIV,SCH MED,CHICAGO,IL 60611. YALE UNIV,OTOLARYNGOL SECT,NEW HAVEN,CT 06520. RP SHINDO, ML (reprint author), UNIV SO CALIF,DEPT OTOLARYNGOL HEAD & NECK SURG,CTR HEALTHCARE CONSULTAT,1510 SAN PABLO ST,LOS ANGELES,CA 90033, USA. NR 35 TC 143 Z9 152 U1 0 U2 13 PU AMER MEDICAL ASSOC PI CHICAGO PA 515 N STATE ST, CHICAGO, IL 60610 SN 0886-4470 J9 ARCH OTOLARYNGOL JI Arch. Otolaryngol. Head Neck Surg. PD FEB PY 1993 VL 119 IS 2 BP 185 EP 190 PG 6 WC Otorhinolaryngology; Surgery SC Otorhinolaryngology; Surgery GA KL173 UT WOS:A1993KL17300012 PM 8427682 ER PT J AU GILLINGHAM, KK AF GILLINGHAM, KK TI ASYMPTOMATIC HIV-1 INFECTION AND AVIATION SAFETY SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Letter RP GILLINGHAM, KK (reprint author), ARMSTRONG LAB,BROOKS AFB,TX, USA. NR 5 TC 0 Z9 0 U1 0 U2 0 PU AEROSPACE MEDICAL ASSOC PI ALEXANDRIA PA 320 S HENRY ST, ALEXANDRIA, VA 22314-3579 SN 0095-6562 J9 AVIAT SPACE ENVIR MD JI Aviat. Space Environ. Med. PD FEB PY 1993 VL 64 IS 2 BP 176 EP 176 PG 1 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA KJ341 UT WOS:A1993KJ34100020 ER PT J AU ARMBRUSTER, DA AF ARMBRUSTER, DA TI PROSTATE-SPECIFIC ANTIGEN - BIOCHEMISTRY, ANALYTICAL METHODS, AND CLINICAL-APPLICATION SO CLINICAL CHEMISTRY LA English DT Review DE PROSTATE-SPECIFIC ANTIGEN; PROSTATIC ACID PHOSPHATASE; BENIGN PROSTATIC HYPERPLASIA; CANCER; FORENSIC MEDICINE; MONITORING THERAPY; SCREENING ID DIGITAL RECTAL EXAMINATION; HUMAN SEMINAL PLASMA; MULTIPLE MARKER EVALUATION; ACID-PHOSPHATASE PAP; RADICAL PROSTATECTOMY; IMMUNORADIOMETRIC ASSAY; GAMMA-SEMINOPROTEIN; IMMUNOMETRIC ASSAYS; TREATED PATIENTS; TUMOR-MARKERS AB Prostate-specific antigen (PSA) is a glycoprotein produced exclusively by prostatic tissue. PSA's absolute tissue specificity makes it valuable as a forensic marker and, more important, as a tumor marker for prostatic cancer. Prostatic cancer is prevalent in the older male population and is a major cause of death in men. Previously, prostatic acid phosphatase (PAP) was used to help diagnose and monitor the efficacy of therapy for prostate cancer. PAP has now been displaced by PSA, which has greater clinical sensitivity even though it has less clinical specificity. PSA is useful for monitoring therapy, particularly surgical prostatectomy, because complete removal of the prostate gland should result in PSA being undetectable. Measurable PSA after radical prostatectomy indicates residual prostatic tissue or metastasis, and increasing PSA concentrations indicate recurrent disease. PSA is also useful for screening selected populations of patients with symptoms indicative of prostate cancer; its use for general screening is debatable because of its less-than-optimal specificity, the cost of unselected screening, and the lack of evidence that early detection of prostate cancer decreases morbidity and mortality. Distinguishing between patients with prostatic cancer and those with benign prostatic hypertrophy is particularly difficult because of the overlap in PSA values in the two groups. Determining the rate of change in PSA per year from serial measurements or calculating the ratio of PSA per volume of the prostate gland may allow these two groups to be more readily differentiated. RP ARMBRUSTER, DA (reprint author), USAF,DRUG TESTING LAB,BROOKS AFB,TX 78235, USA. NR 194 TC 227 Z9 228 U1 0 U2 9 PU AMER ASSOC CLINICAL CHEMISTRY PI WASHINGTON PA 2101 L STREET NW, SUITE 202, WASHINGTON, DC 20037-1526 SN 0009-9147 J9 CLIN CHEM JI Clin. Chem. PD FEB PY 1993 VL 39 IS 2 BP 181 EP 195 PG 15 WC Medical Laboratory Technology SC Medical Laboratory Technology GA KL646 UT WOS:A1993KL64600002 PM 7679336 ER PT J AU KATTA, VR ROQUEMORE, WM AF KATTA, VR ROQUEMORE, WM TI ROLE OF INNER AND OUTER STRUCTURES IN TRANSITIONAL JET DIFFUSION FLAME SO COMBUSTION AND FLAME LA English DT Article AB A jet diffusion flame was studied using a time-dependent, axisymmetric, third-order-accurate computational-fluid-dynamics-based model. In a previous investigation, this vertical, unconfined propane jet flame at transitional fuel-jet velocity was studied experimentally and found to have a double-vortex structure with large-scale buoyance-driven vortices outside the flame surface and smaller Kelvin-Helmholtz-type vortices in the shear layer of the fuel jet inside the flame surface. In the calculations the outer-vortex structures were developed as part of the solution, while a weak shear-layer perturbation was required to generate the inner structures. The computed shapes and the time and spatial evolution of these complex structures closely match those observed in the real flame. The model also correctly predicted the change in the direction of rotation of the inner vortices, which was observed 15 nozzle diameters downstream of the fuel-jet exit in the experiments. The computed results are used to explain this phenomenon. The detailed shapes of the time-averaged and root-mean-square temperature profiles at different heights in the flame are well predicted by the model and are shown to be due to the dynamic motion of the outer-vortex structures. Computational experiments have been performed to examine the long-standing question regarding why the vortices inside a transitional jet flame have a very long coherence length as compared with that of cold jets. Buoyancy was found to be a major factor. The buoyant acceleration of the hot gases of the flame entrains fluid that would normally be entrained by the inner vortices of the jet shear layer and causes their rapid dissipation. The buoyant acceleration also reduces the velocity gradient in the jet shear layer which, in turn, weakens the process that drives the growth of the vortices. C1 WRIGHT LAB,AERO PROPULS & POWER DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RP KATTA, VR (reprint author), CALSPAN,ARVIN,SYST RES LABS INC,2800 INDIAN RIPPLE RD,DAYTON,OH 45440, USA. NR 18 TC 65 Z9 65 U1 2 U2 5 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 0010-2180 J9 COMBUST FLAME JI Combust. Flame PD FEB PY 1993 VL 92 IS 3 BP 274 EP 282 DI 10.1016/0010-2180(93)90039-6 PG 9 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical; Engineering, Mechanical SC Thermodynamics; Energy & Fuels; Engineering GA KK994 UT WOS:A1993KK99400008 ER PT J AU HOWELL, WC AF HOWELL, WC TI TRAINING FOR PERFORMANCE - PRINCIPLES OF APPLIED HUMAN LEARNING - MORRISON,JE SO CONTEMPORARY PSYCHOLOGY LA English DT Book Review C1 USAF,ARMSTRONG LAB,WASHINGTON,DC 20330. RP HOWELL, WC (reprint author), RICE UNIV,HOUSTON,TX 77251, USA. NR 6 TC 0 Z9 0 U1 0 U2 0 PU AMER PSYCHOLOGICAL ASSOC PI WASHINGTON PA 750 FIRST ST NE, WASHINGTON, DC 20002-4242 SN 0010-7549 J9 CONTEMP PSYCHOL JI Comtemp. Psychol. PD FEB PY 1993 VL 38 IS 2 BP 135 EP 136 PG 2 WC Psychology, Multidisciplinary SC Psychology GA KL522 UT WOS:A1993KL52200007 ER PT J AU POLHAMUS, CD WERTH, TE CLEMENT, DJ KEOGH, M LEWIS, P AF POLHAMUS, CD WERTH, TE CLEMENT, DJ KEOGH, M LEWIS, P TI GASTROINTESTINAL-BLEEDING COMPLICATING TRANSESOPHAGEAL ECHOCARDIOGRAPHY SO ENDOSCOPY LA English DT Letter ID SAFETY; PATIENT; RISK RP POLHAMUS, CD (reprint author), WILFORD HALL USAF MED CTR,DEPT CARDIOL,GASTROENTEROL SERV,LACKLAND AFB,TX 78236, USA. NR 11 TC 6 Z9 6 U1 0 U2 0 PU GEORG THIEME VERLAG PI STUTTGART PA P O BOX 30 11 20, D-70451 STUTTGART, GERMANY SN 0013-726X J9 ENDOSCOPY JI Endoscopy PD FEB PY 1993 VL 25 IS 2 BP 198 EP 199 DI 10.1055/s-2007-1010292 PG 2 WC Gastroenterology & Hepatology; Surgery SC Gastroenterology & Hepatology; Surgery GA KX966 UT WOS:A1993KX96600019 PM 8491148 ER PT J AU BARE, HF HAAS, F HONEY, DA MIKOLAS, D CRAIGHEAD, HG PUGH, G SOAVE, R AF BARE, HF HAAS, F HONEY, DA MIKOLAS, D CRAIGHEAD, HG PUGH, G SOAVE, R TI A SIMPLE SURFACE-EMITTING LED ARRAY USEFUL FOR DEVELOPING FREE-SPACE OPTICAL INTERCONNECTS SO IEEE PHOTONICS TECHNOLOGY LETTERS LA English DT Article ID SYSTEMS AB A surface-emitting light source array of homojunction visible (660 nm) GaAsP light emitting diodes (LED's) has been developed to demonstrate the feasibility of new microimaging techniques in vertical optical interconnects. We describe the fabrication process used to create arrays of these independently addressable light sources. A study of contact annealing showed that a two-step furnace anneal yielded higher radiance devices than rapid thermally annealed devices. A 4 x 4 array was used with a reflective focusing diffractive optic element to image light onto photodetectors, thereby proving the usefulness of this source in developing vertical optical interconnects. C1 CORNELL UNIV,NATL NANOFABRICAT FACIL,ITHACA,NY 14853. RP BARE, HF (reprint author), USAF,CTR PHOTON,ROME LAB,GRIFFISS AFB,NY 13441, USA. NR 10 TC 6 Z9 6 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 1041-1135 J9 IEEE PHOTONIC TECH L JI IEEE Photonics Technol. Lett. PD FEB PY 1993 VL 5 IS 2 BP 172 EP 175 DI 10.1109/68.195994 PG 4 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA KN746 UT WOS:A1993KN74600019 ER PT J AU HAUPT, RL COTE, M AF HAUPT, RL COTE, M TI SNELL LAW APPLIED TO FINITE SURFACES SO IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION LA English DT Note AB Snell's law of reflection applies to a plane wave incident on an infinite surface. For finite surfaces the size of the surface, the angle of incidence, and the polarization of the incident wave all contribute to deviations from Snell's law. We use an eigenfunction expansion for the scattering pattern or a perfectly conducting strip and experimental bistatic scattering measurements of rectangular plates to verify the deviations. Physical optics calculations also predict these deviations and are used to provide a physical explanation for the deviations. C1 ROME LAB,BEDFORD,MA 01731. RP HAUPT, RL (reprint author), USAF ACAD,DEPT ELECT ENGN,COLORADO SPRINGS,CO 80840, USA. NR 6 TC 3 Z9 3 U1 1 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-926X J9 IEEE T ANTENN PROPAG JI IEEE Trans. Antennas Propag. PD FEB PY 1993 VL 41 IS 2 BP 227 EP 230 DI 10.1109/8.214615 PG 4 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA LE052 UT WOS:A1993LE05200014 ER PT J AU STANTON, BJ DROZDOWSKI, MJ DUNCAN, TS AF STANTON, BJ DROZDOWSKI, MJ DUNCAN, TS TI USING SPREADSHEETS IN STUDENT EXERCISES FOR SIGNAL AND LINEAR-SYSTEM ANALYSIS SO IEEE TRANSACTIONS ON EDUCATION LA English DT Article AB This paper is a presentation of several student exercises in signal and linear system analysis that use the power of PC-based spreadsheet programs to aid students' understanding and cognitive development. The first exercise examines the Fourier series and allows students to see graphically how the harmonics of the series add and subtract to form a new periodic waveform. In the second assignment, students work through problems designed to acquaint them with implementing singularity functions and integration methods on the path to accomplishing the convolution of two signals. The final exercise teaches students how to form iterative solutions to state space problems. These exercises allow students to focus on gaining a conceptual understanding of signal and linear system analysis while deemphasizing the rigors of developing a user interface, a common problem when using structured programming languages. RP STANTON, BJ (reprint author), USAF ACAD,DEPT ELECT ENGN,COLORADO SPRINGS,CO 80840, USA. NR 9 TC 4 Z9 4 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9359 J9 IEEE T EDUC JI IEEE Trans. Educ. PD FEB PY 1993 VL 36 IS 1 BP 62 EP 68 DI 10.1109/13.204818 PG 7 WC Education, Scientific Disciplines; Engineering, Electrical & Electronic SC Education & Educational Research; Engineering GA KT184 UT WOS:A1993KT18400014 ER PT J AU HOW, H VITTORIA, C TROTT, K AF HOW, H VITTORIA, C TROTT, K TI NONLINEAR RESPONSE TO PICOSECOND PULSE EXCITATIONS IN MAGNETO-DIELECTRIC MEDIA SO IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES LA English DT Article AB Nonlinear responses of magneto-dielectric thin layers to picosecond excitation have been calculated utilizing direct time-domain integration. Relaxations, hysteresis, and magnetic saturation phenomena associated with the response are therefore discussed in depth. The purpose of this calculation was to provide an analytical method by which physical properties or materials can be identified under picosecond-pulse excitation as well as to explore special cases of excitations in which picosecond pulses are efficiently absorbed. The calculations indicate that by examining the reflected waveform of the incident rectangular picosecond pulse the amount of magnetic hysteresis and saturation of the material may be estimated. It is shown that magnetic hysteresis will affect the shape of the trailing edge of the reflected signal, whereas the magnetic saturation effect can be identified from the slope of the reflected pulse step. Examples of designing effective picosecond-pulse screening structures have also been illustrated. C1 USAF,RL ERCT,ROME LAB,BEDFORD,MA 01731. RP HOW, H (reprint author), NORTHEASTERN UNIV,DEPT ELECT & COMP ENGN,MICROWAVE MAT GRP,BOSTON,MA 02115, USA. NR 4 TC 2 Z9 2 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9480 J9 IEEE T MICROW THEORY JI IEEE Trans. Microw. Theory Tech. PD FEB PY 1993 VL 41 IS 2 BP 255 EP 259 DI 10.1109/22.216465 PG 5 WC Engineering, Electrical & Electronic SC Engineering GA LH109 UT WOS:A1993LH10900011 ER PT J AU MOREHEAD, JM PARSONS, DS MCMAHON, DP AF MOREHEAD, JM PARSONS, DS MCMAHON, DP TI SQUAMOUS-CELL CARCINOMA OF THE TONGUE OCCURRING AS A SUBSEQUENT MALIGNANCY IN A 12-YEAR-OLD ACUTE-LEUKEMIA SURVIVOR SO INTERNATIONAL JOURNAL OF PEDIATRIC OTORHINOLARYNGOLOGY LA English DT Article DE SQUAMOUS CELL CARCINOMA; TONGUE; LEUKEMIA ID MARROW TRANSPLANTATION; SECONDARY AB Squamous cell carcinoma of the tongue is rare in children and previously unreported as a second malignancy after survival of acute leukemia. Usual etiologic associations such as smoking and alcohol use are not commonly seen in this population, and exposure to immunosuppressive and antineoplastic agents including radiation therapy may contribute to the occurrence of these tumors. A review of the literature reveals only 21 previously reported cases of squamous cell carcinoma of the tongue in children less than 15 years old, and in only two cases was it a second malignancy; none were in leukemia survivors. Small numbers prevent accurate conclusions with regard to tumor behavior, but prognosis appears to be poor with aggressive invasion and early metastasis common. Follow-up of survivors of leukemia and its therapy with immunosuppressive and cytotoxic drugs and radiation should include regular careful head and neck examinations. C1 WILFORD HALL USAF MED CTR,DEPT OTOLARYNGOL HEAD & NECK SURG,LACKLAND AFB,TX 78236. WILFORD HALL USAF MED CTR,DEPT PEDIAT HEMATOL,LACKLAND AFB,TX 78236. NR 26 TC 7 Z9 7 U1 0 U2 0 PU ELSEVIER SCI IRELAND LTD PI CLARE PA CUSTOMER RELATIONS MANAGER, BAY 15, SHANNON INDUSTRIAL ESTATE CO, CLARE, IRELAND SN 0165-5876 J9 INT J PEDIATR OTORHI JI Int. J. Pediatr. Otorhinolaryngol. PD FEB PY 1993 VL 26 IS 1 BP 89 EP 94 DI 10.1016/0165-5876(93)90200-M PG 6 WC Otorhinolaryngology; Pediatrics SC Otorhinolaryngology; Pediatrics GA KN983 UT WOS:A1993KN98300010 PM 8444550 ER PT J AU WEBB, EL AF WEBB, EL TI NASAL CANDIDIASIS IN A PATIENT ON LONG-TERM TOPICAL INTRANASAL CORTICOSTEROID-THERAPY SO JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY LA English DT Note ID BECLOMETHASONE DIPROPIONATE AEROSOL; PERENNIAL RHINITIS RP WEBB, EL (reprint author), WILFORD HALL USAF MED CTR,SGHMA,2200 BERGQUIST DR,SUITE 1,LACKLAND AFB,TX 78236, USA. NR 5 TC 3 Z9 3 U1 0 U2 0 PU MOSBY-YEAR BOOK INC PI ST LOUIS PA 11830 WESTLINE INDUSTRIAL DR, ST LOUIS, MO 63146-3318 SN 0091-6749 J9 J ALLERGY CLIN IMMUN JI J. Allergy Clin. Immunol. PD FEB PY 1993 VL 91 IS 2 BP 680 EP 681 DI 10.1016/0091-6749(93)90274-J PG 2 WC Allergy; Immunology SC Allergy; Immunology GA KN548 UT WOS:A1993KN54800016 PM 8436781 ER PT J AU ZHOU, WM DUTTA, M SHEN, H PAMULAPATI, J BENNETT, BR PERRY, CH WEYBURNE, DW AF ZHOU, WM DUTTA, M SHEN, H PAMULAPATI, J BENNETT, BR PERRY, CH WEYBURNE, DW TI INVESTIGATION OF NEAR INTERFACE PROPERTIES IN SEMIINSULATING INP SUBSTRATES WITH EPITAXIAL GROWN INGAAS AND INALAS BY PHOTOREFLECTANCE SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID GAAS; ELECTROREFLECTANCE; CHARGE AB An extensive photoreflectance (PR) study has been done on a series of undoped and n-type, InGaAs and InAlAs molecular beam epitaxy (MBE) grown layers with different In mole fractions, and epilayer thicknesses on Fe-doped semi-insulating (SI)-InP substrates. Three substrate features were observed in the spectra. From investigations of the temperature dependence, time constant dependence, and an additional cw light beam intensity dependence, they were identified as an excitonic transition from the substrate, a free electron transition near the interface which gives a Franz-Keldysh oscillation, and a transition from the spin-orbit split-off valence band. The Franz-Keldysh effect indicates that a temperature dependent built-in electric field is formed near the interface. The dependence of the field on doping concentration, strain, or epilayer composition (band gap) was insignificant. The PR signal from a SI-InP wafer after a pre-MBE-growth heating was found to be strongly enhanced over that from an untreated wafer. This signal was even more enhanced after an epilayer was grown on top, indicating the formation of a built-in field. These results are indicative of a redistribution of charge near the interface/surface in the process of MBE growth; the associated PR signal (phase) could be used for in situ monitoring of epilayer growth on SI-InP wafers. C1 MIT,CAMBRIDGE,MA 02139. NORTHEASTERN UNIV,BOSTON,MA 02115. USAF,ROME LAB,SYST COMMAND,BEDFORD,MA 01731. GEOCENTERS INC,LAKE HOPATCONG,NJ 07849. RP ZHOU, WM (reprint author), USA,RES LAB,EPSD,FT MONMOUTH,NJ 07703, USA. RI Bennett, Brian/A-8850-2008 OI Bennett, Brian/0000-0002-2437-4213 NR 25 TC 20 Z9 20 U1 2 U2 5 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD FEB 1 PY 1993 VL 73 IS 3 BP 1266 EP 1271 DI 10.1063/1.353268 PG 6 WC Physics, Applied SC Physics GA KK921 UT WOS:A1993KK92100039 ER PT J AU MURRAY, PM WEINSTEIN, SL SPRATT, KF AF MURRAY, PM WEINSTEIN, SL SPRATT, KF TI THE NATURAL-HISTORY AND LONG-TERM FOLLOW-UP OF SCHEUERMANN KYPHOSIS SO JOURNAL OF BONE AND JOINT SURGERY-AMERICAN VOLUME LA English DT Article ID LOW-BACK-PAIN; SPINAL-CORD COMPRESSION; JUVENILE KYPHOSIS; SURGICAL-TREATMENT; DOMINANT INHERITANCE; COMBINED ANTERIOR; DISK HERNIATION; DISEASE; SPONDYLOLISTHESIS; OSTEOCHONDROSIS AB Sixty-seven patients who had a diagnosis of Scheuermann kyphosis and a mean angle of kyphosis of 71 degrees were evaluated after an average follow-up of thirty-two years (range, ten to forty-eight years) after the diagnosis. All sixty-seven patients completed a questionnaire; fifty-four had a physical examination and radiographs; fifty-two, pulmonary function testing; and forty-five, strength-testing of the trunk muscles. The results were compared with those in a control group of thirty-four subjects who were matched for age and sex. The patients who had Scheuermann kyphosis had more intense back pain jobs that tended to have lower requirements for activity, less range of motion of extension of the trunk and less-strong extension of the trunk, and different localization of the pain. No significant differences between the patients and the control subjects were demonstrated for level of education, number of days absent from work because of low-back pain, extent that the pain interfered with activities of daily living, presence of numbness in the lower extremities, self-consciousness, self-esteem, social limitations, use of medication for back pain, or level of recreational activities. Also, the patients reported little preoccupation with their physical appearance. Normal or above-normal averages for pulmonary function were found in patients in whom the kyphosis was less than 100 degrees. Patients in whom the kyphosis was more than 100 degrees and the apex of the curve was in the first to eighth thoracic segments had restrictive lung disease. Five patients had an unexplained, mildly abnormal neurological examination. Mild scoliosis was common; spondylolisthesis was not observed. C1 UNIV IOWA HOSP & CLIN,DEPT ORTHOPAED SURG,CTR SPINE DIAGNOST & TREATMENT,IOWA CITY,IA 52242. RP MURRAY, PM (reprint author), MED GRP 3750,SGHST,DEPT ORTHOPED SURG,SHEPPARD AFB,TX 76311, USA. FU NCRR NIH HHS [RR 59] NR 111 TC 86 Z9 92 U1 1 U2 4 PU JOURNAL BONE JOINT SURGERY INC PI NEEDHAM PA 20 PICKERING ST, NEEDHAM, MA 02192 SN 0021-9355 J9 J BONE JOINT SURG AM JI J. Bone Joint Surg.-Am. Vol. PD FEB PY 1993 VL 75A IS 2 BP 236 EP 248 PG 13 WC Orthopedics; Surgery SC Orthopedics; Surgery GA KM708 UT WOS:A1993KM70800011 PM 8423184 ER PT J AU STEINER, TD HENGEHOLD, RL YEO, YK GODBEY, DJ THOMPSON, PE POMRENKE, GS AF STEINER, TD HENGEHOLD, RL YEO, YK GODBEY, DJ THOMPSON, PE POMRENKE, GS TI A STUDY OF BROAD-BAND PHOTOLUMINESCENCE FROM SI1-XGEX/SI SUPERLATTICES SO JOURNAL OF CRYSTAL GROWTH LA English DT Article; Proceedings Paper CT 7TH INTERNATIONAL CONF ON MOLECULAR BEAM EPITAXY ( MBE-7 ) CY AUG 24-28, 1992 CL SCHWABISCH, GERMANY SP DEUT FORSCHUNGSGEMEINSCH, MINIST WISSENSCH & KUNST BADEN WURTTEMBERG, MAX PLANCK GESELL, BAYER, DAIMLER BENZ, DEGUSSA, FISONS INSTRUMENTS, HEWLETT PACKARD, INSTRUMENTS SA, INTEVEC MBE EQUIPMENT ID ALLOYS AB Using photoluminescence (PL) obtained with ultraviolet (UV) laser excitation, we have examined Si1-xGex/Si long-period superlattices (SLs) grown by molecular beam epitaxy at 500-degrees-C and annealed post-growth at 550 to 750-degrees-C. Our as-grown samples show broad PL bands, 120 meV below the band gap when the effects of quantum confinement of holes are added in. The broad PL band peak positions shift to higher energies as the anneal temperature increases. This coincides with a reduction in the activation energies of the broad PL bands. The broad bands from both the as-grown and annealed samples shift to lower energies as the sample temperature increases. C1 USN,RES LAB,WASHINGTON,DC 20375. USAF,OFF SCI RES,WASHINGTON,DC 20330. RP STEINER, TD (reprint author), USAF,INST TECHNOL,WRIGHT PATTERSON AFB,OH 45433, USA. NR 7 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-0248 J9 J CRYST GROWTH JI J. Cryst. Growth PD FEB PY 1993 VL 127 IS 1-4 BP 472 EP 475 DI 10.1016/0022-0248(93)90663-H PG 4 WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied SC Crystallography; Materials Science; Physics GA KZ453 UT WOS:A1993KZ45300100 ER PT J AU EVANS, KR KASPI, R JONES, CR SHERRIFF, RE JOGAI, V REYNOLDS, DC AF EVANS, KR KASPI, R JONES, CR SHERRIFF, RE JOGAI, V REYNOLDS, DC TI DESORPTION MASS-SPECTROMETRIC CONTROL OF COMPOSITION DURING MBE GROWTH OF ALGAAS SO JOURNAL OF CRYSTAL GROWTH LA English DT Article; Proceedings Paper CT 7TH INTERNATIONAL CONF ON MOLECULAR BEAM EPITAXY ( MBE-7 ) CY AUG 24-28, 1992 CL SCHWABISCH, GERMANY SP DEUT FORSCHUNGSGEMEINSCH, MINIST WISSENSCH & KUNST BADEN WURTTEMBERG, MAX PLANCK GESELL, BAYER, DAIMLER BENZ, DEGUSSA, FISONS INSTRUMENTS, HEWLETT PACKARD, INSTRUMENTS SA, INTEVEC MBE EQUIPMENT ID MOLECULAR-BEAM EPITAXY AB We report on the implementation of technique of desorption mass spectrometry (DMS) in a real-time feedback loop for continuous monitoring and control of layer composition during molecular beam epitaxy growth of AlGaAs on (001) GaAs at high substrate temperatures. With this technique, the Ga desorption rate F(d)(Ga) and thus the composition is monitored continuously and kept at the desired value by adjusting either the substrate heater power or the incident arsenic flux. Composition control by DMS during growth of nominally constant composition layers is found to be superior to that obtained with conventional MBE growth, as indicated by F(d)(Ga) versus time profiles and low temperature photoluminescence (PL) results. The ability to produce complex graded structures by DMS control is demonstrated by the growth of nominally parabolic AlGaAs quantum wells, for which photoreflectance and PL results are consistent with the desired structure. The technique is quite general and applicable to many different compounds. RP EVANS, KR (reprint author), WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433, USA. NR 8 TC 16 Z9 16 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-0248 J9 J CRYST GROWTH JI J. Cryst. Growth PD FEB PY 1993 VL 127 IS 1-4 BP 523 EP 527 DI 10.1016/0022-0248(93)90675-M PG 5 WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied SC Crystallography; Materials Science; Physics GA KZ453 UT WOS:A1993KZ45300112 ER PT J AU ELSAESSER, DW COLON, JE YEO, YK HENGEHOLD, RL EVANS, KR SOLOMON, JS AF ELSAESSER, DW COLON, JE YEO, YK HENGEHOLD, RL EVANS, KR SOLOMON, JS TI ERBIUM COMPLEXES AND DEFECT LEVELS IN MBE-GROWN ERBIUM-DOPED GAAS AND ALGAAS SO JOURNAL OF CRYSTAL GROWTH LA English DT Article; Proceedings Paper CT 7TH INTERNATIONAL CONF ON MOLECULAR BEAM EPITAXY ( MBE-7 ) CY AUG 24-28, 1992 CL SCHWABISCH, GERMANY SP DEUT FORSCHUNGSGEMEINSCH, MINIST WISSENSCH & KUNST BADEN WURTTEMBERG, MAX PLANCK GESELL, BAYER, DAIMLER BENZ, DEGUSSA, FISONS INSTRUMENTS, HEWLETT PACKARD, INSTRUMENTS SA, INTEVEC MBE EQUIPMENT ID LUMINESCENCE; 1.54-MU-M AB Erbium doped GaAs and AlGaAs layers were grown using MBE at various Er concentrations. Low temperature photoluminescence (PL) measurements indicate that the most intense Er emissions occur near [Er] = 10(19) cm-3 and fall off sharply by [Er] = 6 X 10(19) cm-3. PL and lifetime measurements indicate that there are at least 3 distinct optically active centers. Electrical measurements show that Er-related hole traps in GaAs are at 35, 150, and 340 meV above the valence band. C1 WRIGHT LAB,SOLID STATE ELECTR DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. UNIV DAYTON,RES INST,DAYTON,OH 45469. RP ELSAESSER, DW (reprint author), USAF,INST TECHNOL,WRIGHT PATTERSON AFB,OH 45433, USA. NR 13 TC 13 Z9 13 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-0248 J9 J CRYST GROWTH JI J. Cryst. Growth PD FEB PY 1993 VL 127 IS 1-4 BP 707 EP 710 DI 10.1016/0022-0248(93)90716-A PG 4 WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied SC Crystallography; Materials Science; Physics GA KZ453 UT WOS:A1993KZ45300153 ER PT J AU MACHUZAK, JS BURKE, WJ RETTERER, JM HUNTON, DE JASPERSE, JR SMIDDY, M AF MACHUZAK, JS BURKE, WJ RETTERER, JM HUNTON, DE JASPERSE, JR SMIDDY, M TI EFFECTS OF THRUSTER FIRINGS ON THE SHUTTLES PLASMA AND ELECTRIC-FIELD ENVIRONMENT SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article ID SPACE-SHUTTLE; ELECTROSTATIC NOISE; DIAGNOSTICS PACKAGE; VICINITY; BEAM; ORBITER; WAVES; INSTABILITY; HISS AB Simultaneous plasma and AC/DC electric field measurements taken during the space shuttle mission STS-4 at times of prolonged thruster firings are analyzed and cross correlated. Depending on the orientation of the shuttle's velocity vector to the magnetic field, ion densities and electric field wave spectra were enhanced or decreased. The systematic picture of interactions within the shuttle's plasma/neutral gas environment of Cairns and Gurnett (I 991 b) is confirmed and extended. Waves are excited by outgassed and thruster-ejected molecules that ionize in close proximity to the shuttle. On time scales significantly less than an ion gyroperiod, the newly created ions act as beams in the background plasma. These beams are sources of VLF waves that propagate near the shuttle and intensify during thruster firings. Plasma density depletions and/or the shuttle's geometry may hinder wave detection in the payload bay. A modified two-stream analysis indicates that beam components propagating at large angles to the magnetic field are unstable to the growth of lower hybrid waves. The beam-excited, lower hybrid waves heat some electrons to sufficient energies to produce impact ionization. Empirical evidence for other wave-growth mechanisms outside the lower-hybrid band is presented. C1 USAF,PHILLIPS LAB,GEOPHYS DIRECTORATE,BEDFORD,MA 01731. RP MACHUZAK, JS (reprint author), MIT,CTR PLASMA FUS,CAMBRIDGE,MA 02139, USA. NR 42 TC 12 Z9 12 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD FEB 1 PY 1993 VL 98 IS A2 BP 1513 EP 1530 DI 10.1029/92JA02041 PG 18 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA KK720 UT WOS:A1993KK72000027 ER PT J AU BASU, S BASU, S EASTES, R HUFFMAN, RE DANIELL, RE CHATURVEDI, PK VALLADARES, CE LIVINGSTON, RC AF BASU, S BASU, S EASTES, R HUFFMAN, RE DANIELL, RE CHATURVEDI, PK VALLADARES, CE LIVINGSTON, RC TI REMOTE-SENSING OF AURORAL E-REGION PLASMA STRUCTURES BY RADIO, RADAR, AND UV TECHNIQUES AT SOLAR MINIMUM SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article ID INCIDENT ELECTRON-SPECTRA; IONOSPHERIC IRREGULARITIES; OPTICAL MEASUREMENTS; EQUATORIAL ELECTROJET; DEDUCING COMPOSITION; VELOCITY SHEARS; POLAR-CAP; F-REGION; SCINTILLATION; DENSITY AB The unique capability of the Polar BEAR satellite to simultaneously image auroral luminosities at multiple ultraviolet (UV) wavelengths and to remote sense large-scale (hundreds to tens of kilometers) and small-scale (kilometers to hundreds of meters) plasma density structures with its multifrequency beacon package is utilized to probe the auroral E region in the vicinity of the incoherent scatter radar (ISR) facility near Sondrestrom. In particular, we present coordinated observations on two nights obtained during the sunspot minimum (sunspot number < 10) January-February 1987 period when good spatial and temporal conjunction was obtained between Polar BEAR overflights and Sondrestrom ISR measurements. With careful coordinated observations we were able to confirm that the energetic particle precipitation responsible for the UV emissions causes the electron density increases in the E region. These E region electron density enhancements were measured by the ISR at Sondrestrom. The integrations up to the topside of these ISR electron density profiles were consistent with the total electron content (TEC) measured by the Polar BEAR satellite. An election transport model was utilized to determine quantitatively the electron density profiles which could be produced by the particle precipitation, which also produced multiple UV emissions measured by the imager; these profiles were found to be in good agreement with the observed ISR profiles in the E region. Surprisingly large magnitudes of phase and amplitude scintillations were measured at 137 and 413 MHz in the regions of TEC enhancements associated with the particle precipitation. Steep phase spectral slopes with spectral index of 4 were found in these regions. Strength-of-turbulence computations utilizing the ISR electron density profiles and observed characteristics of phase and amplitude scintillations are interpreted in terms of an irregularity amplitude varying between 10 and 20% at a several-kilometer outer scale size in the E region extending approximately 50 km in altitude. This outer scale size is also consistent with the measured phase to amplitude scintillation ratio. An estimate of the linear growth rate of the gradient-drift instability in the E region shows that these plasma density irregularities could have been generated by this process. The mutual consistency of these different sets of measurements provides confidence in the ability of the different techniques to remote sense large- and small-scale plasma density structures in the E region at least during sunspot minimum when the convection-dominated high-latitude F region is fairly weak. C1 USAF,PHILLIPS LAB,GPIS,BEDFORD,MA 01731. COMPUTAT PHYS INC,NEWTON,MA 02159. BOSTON COLL,INST SPACE RES,NEWTON,MA 02159. USN,RES LAB,DIV PLASMA PHYS,SPACE PLASMA BRANCH,WASHINGTON,DC 20375. SRI INT,MENLO PK,CA 94025. NR 56 TC 13 Z9 13 U1 0 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD FEB 1 PY 1993 VL 98 IS A2 BP 1589 EP 1602 DI 10.1029/92JA01655 PG 14 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA KK720 UT WOS:A1993KK72000033 ER PT J AU SWIDER, W KENESHEA, TJ AF SWIDER, W KENESHEA, TJ TI THE QUIET SUNRISE E-REGION - ENHANCEMENTS AT HIGH-LATITUDES IN WINTER DUE TO INCREASED NITRIC-OXIDE SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article ID IONOSPHERE AB E region electron concentrations derived from European Incoherent Scatter Facility observations at 70-degrees-N were found to be much larger than normal for high solar zenith angles during 23 of 32 days in winter. Electron concentrations computed with the Keneshea code are compatible with the observations if nitric oxide concentrations are about 10(9) cm-3 at 100-110 km. For these altitudes near ground sunrise, it is shown that numerically, the nitric oxide concentration approximately equals the square of the electron concentration. RP SWIDER, W (reprint author), USAF,PHILLIPS LAB,GEOPHYS DIRECTORATE,BEDFORD,MA 01731, USA. NR 16 TC 6 Z9 6 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD FEB 1 PY 1993 VL 98 IS A2 BP 1725 EP 1728 DI 10.1029/92JA02564 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA KK720 UT WOS:A1993KK72000043 ER PT J AU TAYLOR, DD GERCELTAYLOR, C FOWLER, WC WEESE, JL AF TAYLOR, DD GERCELTAYLOR, C FOWLER, WC WEESE, JL TI ENHANCEMENT OF ANTITUMOR EFFECTS OF COMBINED CHEMOIMMUNOTHERAPY SO JOURNAL OF IMMUNOTHERAPY LA English DT Article DE CHEMOTHERAPY; IMMUNOTHERAPY; IMMUNOPOTENTIATION ID LEVAMISOLE; ADJUVANT; MICE; PENTAPEPTIDE; THYMOPOIETIN; PREVENTION; CARCINOMA; THERAPY AB The spontaneously metastatic murine pancreatic tumor, PAN 2, was used to evaluate established regimens of combined chemoimmunotherapy with 5-fluorouracil (5-FU) and levamisole and new protocols based on the immunomodulator, thymopoietin pentapeptide (TP-5). The combination of 5-FU and levamisole reduced the final tumor size by 32% and the mean number of lung metastases by 71%. Based on flow cytometric analysis, the combination treatment increased the percent of helper/inducer (CD4+) lymphocytes and reduced the number of effector (suppressor/cytotoxic) lymphocytes (CD8+). A second combination using 5-FU and TP-5 produced a reduction in tumor growth rate of 52%, with an 88% suppression of lung metastases with TP-5/5-FU (vs. levamisole/5-FU) treatment. The TP-5 treatment also increased splenic T-lymphocyte responsiveness to nonspecific mitogens by 2.3-fold. These results suggest a correlation between enhanced T-lymphocyte functional parameters and reduced tumor growth and metastatic spread produced by these combination therapies. Since TP-5 has been demonstrated to be a superior immunomodulator compared to levamisole, the greater therapeutic effect of TP-5 vs. levamisole further supports the postulated role of immunopotentiation in the success of combined chemoimmunotherapy. C1 UNIV LOUISVILLE,SCH MED,DEPT BIOCHEM,LOUISVILLE,KY 40292. USAF,MED CTR,DEPT SURG,KEESLER AFB,MS 39534. PRESBYTERIAN CANC CTR,PHILADELPHIA,PA. RP TAYLOR, DD (reprint author), UNIV LOUISVILLE,SCH MED,DEPT OBSTET & GYNECOL,MDR 420,511 S FLOYD ST,LOUISVILLE,KY 40292, USA. NR 17 TC 16 Z9 16 U1 1 U2 2 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 1053-8550 J9 J IMMUNOTHER JI J. Immunother. PD FEB PY 1993 VL 13 IS 2 BP 91 EP 97 DI 10.1097/00002371-199302000-00003 PG 7 WC Oncology; Immunology; Medicine, Research & Experimental SC Oncology; Immunology; Research & Experimental Medicine GA KJ603 UT WOS:A1993KJ60300003 PM 8100447 ER PT J AU PAO, YH KOMEYLI, K SHEI, D LECLAIR, S WINN, A AF PAO, YH KOMEYLI, K SHEI, D LECLAIR, S WINN, A TI THE EPISODAL ASSOCIATIVE MEMORY - MANAGING MANUFACTURING INFORMATION ON THE BASIS OF SIMILARITY AND ASSOCIATIVITY SO JOURNAL OF INTELLIGENT MANUFACTURING LA English DT Article DE ASSOCIATIVE MEMORY; FEATURE-BASED DESIGN AB In this paper we report on continuing research on the organization and functionalities of a certain type of computer-implemented associative memory. The associative memory in question is being created to serve as part of a feature-based design system, at present to be used primarily in support of the design, fabrication planning, or inspection planning of discrete mechanical machine parts. This present effort is consonant with prior related work in the realm of case-based reasoning, especially as related to the role of memory in design. Our associative memory innovations are in the use of fuzzy sets and neural net computing in the representation, storage and retrieval of design, fabrication, inspection and materials knowledge. We have designed and implemented a considerable portion of the associative memory and have demonstrated retrieval of previous designs on the basis of qualitative geometry. We have also demonstrated ability to explore materials composition with the objective of meeting critical. materials properties constraints. C1 CASE WESTERN RESERVE UNIV,CLEVELAND,OH 44106. USAF,SYST COMMAND,WRIGHT LABS,WRIGHT PATTERSON AFB,OH 45433. NR 28 TC 4 Z9 4 U1 0 U2 0 PU CHAPMAN HALL LTD PI LONDON PA 2-6 BOUNDARY ROW, LONDON, ENGLAND SE1 8HN SN 0956-5515 J9 J INTELL MANUF JI J. Intell. Manuf. PD FEB PY 1993 VL 4 IS 1 BP 23 EP 32 DI 10.1007/BF00124978 PG 10 WC Computer Science, Artificial Intelligence; Engineering, Manufacturing SC Computer Science; Engineering GA KQ515 UT WOS:A1993KQ51500002 ER PT J AU MEALEY, BL HALLMON, WW WALDROP, TC AF MEALEY, BL HALLMON, WW WALDROP, TC TI OCCURRENCE AND RESOLUTION OF FOCAL EPITHELIAL HYPERPLASIA IN 2 SIBLINGS WITH LEUKOCYTE ADHESION DEFICIENCY SO JOURNAL OF PERIODONTOLOGY LA English DT Article DE FOCAL EPITHELIAL HYPERPLASIA; HECK DISEASE; LEUKOCYTE ADHESION DEFICIENCY ID HUMAN PAPILLOMAVIRUS TYPE-13; HERITABLE MAC-1; HECKS DISEASE; HPV DNA; LFA-1; FAMILY; HYBRIDIZATION; CHIMPANZEE AB FOCAL EPITHELIAL HYPERPLASIA is an uncommon disorder characterized by formation of multiple asymptomatic oral Mucosal papular and/or nodular lesions. This article relates the occurrence and clinical course of FEH in 2 adolescent siblings with leukocyte adhesion deficiency. Histological findings are described and insights into potential causes are discussed. RP MEALEY, BL (reprint author), WILFORD HALL USAF MED CTR,DEPT PERIODONT,LACKLAND AFB,TX 78236, USA. NR 26 TC 12 Z9 13 U1 0 U2 0 PU AMER ACAD PERIODONTOLOGY PI CHICAGO PA 737 NORTH MICHIGAN AVENUE, SUITE 800, CHICAGO, IL 60611-2690 USA SN 0022-3492 J9 J PERIODONTOL JI J. Periodont. PD FEB PY 1993 VL 64 IS 2 BP 149 EP 152 PG 4 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA KN151 UT WOS:A1993KN15100011 PM 8433256 ER PT J AU HALL, R AF HALL, R TI EFFECTIVE MODULI OF CELLULAR MATERIALS SO JOURNAL OF REINFORCED PLASTICS AND COMPOSITES LA English DT Article; Proceedings Paper CT 6TH TECHNICAL CONF OF THE AMERICAN SOC FOR COMPOSITES CY OCT 07-09, 1991 CL ALBANY, NY SP AMER SOC COMPOSITES ID EFFECTIVE ELASTIC-MODULI; HASHIN-SHTRIKMAN BOUNDS; POLYCRYSTALS; SYMMETRY; COMPOSITES AB It is often useful to approximate certain materials as consisting of cells of identical material properties that are randomly oriented in space or with respect to a fixed axis. Examples of such materials are foams, polycrystals and chopped fiber composites, all of which may exhibit overall isotropy or may possess a preferred direction as a result of manufacturing/processing. The present manuscript briefly reviews previous work in the modeling and bounding of the effective moduli of such materials based on the stiffness/compliance matrices of the cells, and contributes new results for unconstrained 3D and 2D random-celled materials with fully unsymmetric cell stiffness matrices. An example of such a material is a chopped fiber composite with phase debonding. RP HALL, R (reprint author), WRIGHT LAB,MAT DIRECTORATE,MLBM,WRIGHT PATTERSON AFB,OH 45433, USA. NR 37 TC 6 Z9 6 U1 0 U2 0 PU TECHNOMIC PUBL CO INC PI LANCASTER PA 851 NEW HOLLAND AVE, BOX 3535, LANCASTER, PA 17604 SN 0731-6844 J9 J REINF PLAST COMP JI J. Reinf. Plast. Compos. PD FEB PY 1993 VL 12 IS 2 BP 186 EP 197 DI 10.1177/073168449301200205 PG 12 WC Materials Science, Composites; Polymer Science SC Materials Science; Polymer Science GA KP214 UT WOS:A1993KP21400005 ER PT J AU KUMAR, B WEISSMAN, PT MARSH, RA AF KUMAR, B WEISSMAN, PT MARSH, RA TI THE EFFECT OF MECHANICAL EXCITATION ON IONIC-CONDUCTIVITY AND RELATED PROPERTIES OF POLYMER ELECTROLYTES SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY LA English DT Article AB A recent work1 reported a theoretical basis for enhancement of ionic conductivity in polymer electrolytes under the influence of external mechanical excitation. This paper presents an experimental evidence for the conductivity enhancement. The conductivity of a Li/polymer/Li half cell was increased by a factor of three as the frequency of external mechanical excitation was varied from 0 to 10 kHz. The mechanism of conductivity enhancement has been explained on the basis of absorption of mechanical energy by polymer chains that in turn assist the transport of conducting ions. The enhanced conductivity may subsequently affect the performance of electrochemical devices. Discharge rates of some primary polymer batteries as a function of mechanical excitation were measured, and the results suggest that they are excitation dependent. C1 WRIGHT LAB,AERO PROPULS & POWER DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RP KUMAR, B (reprint author), UNIV DAYTON,RES INST,DAYTON,OH 45469, USA. NR 7 TC 2 Z9 2 U1 0 U2 0 PU ELECTROCHEMICAL SOC INC PI PENNINGTON PA 10 SOUTH MAIN STREET, PENNINGTON, NJ 08534 SN 0013-4651 J9 J ELECTROCHEM SOC JI J. Electrochem. Soc. PD FEB PY 1993 VL 140 IS 2 BP 320 EP 323 DI 10.1149/1.2221045 PG 4 WC Electrochemistry; Materials Science, Coatings & Films SC Electrochemistry; Materials Science GA KL863 UT WOS:A1993KL86300011 ER PT J AU SMITH, T MACKIE, A VANWAGGONER, S GANDY, G WASHBURN, M SELF, R HORN, A KIEL, JL WRIGHT, JR AF SMITH, T MACKIE, A VANWAGGONER, S GANDY, G WASHBURN, M SELF, R HORN, A KIEL, JL WRIGHT, JR TI CHEMILUMINESCENT DOSIMETRY OF MICROWAVE-HEATING AND ACOUSTIC IRRADIATIONS BASED ON LUMINOL AND METAL-OXIDE CATALYSTS SO MICROCHEMICAL JOURNAL LA English DT Article C1 SE OKLAHOMA STATE UNIV,DEPT PHYS SCI,DURANT,OK 74701. ARMSTRONG LAB,DIV DIRECTED ENERGY,RADIOFREQUENCY RADIAT BRANCH,BROOKS AFB,TX 78235. NR 10 TC 6 Z9 6 U1 0 U2 0 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0026-265X J9 MICROCHEM J JI Microchem J. PD FEB-APR PY 1993 VL 47 IS 1-2 BP 197 EP 205 DI 10.1006/mchj.1993.1034 PG 9 WC Chemistry, Analytical SC Chemistry GA KM615 UT WOS:A1993KM61500034 ER PT J AU KNAPP, TS NEWMAN, SJ AF KNAPP, TS NEWMAN, SJ TI VARIABLES RELATED TO THE PSYCHOLOGICAL WELL BEING OF ARMY WIVES DURING THE STRESS OF AN EXTENDED MILITARY SEPARATION SO MILITARY MEDICINE LA English DT Article AB Past research has indicated that extended military separations have a profound impact on military wives. The present study examines the relationship between self-esteem, locus of control, accumulated stressors, perceived military stress, and the psychological well-being of 74 Army wives whose husbands were stationed in the Persian Gulf. Accumulated stressors and perceived military stress were able to account for a significant portion of the variance in psychological well-being. This suggests that during an extended separation, the lower the accumulation of stressors and perceived military stress, the greater the psychological well-being of Army wives. Clinical implications of these findings are discussed. C1 USAF,WALSON MED CTR,COMMUNITY MENTAL HLTH SERV,FT DIX,NJ 08640. NR 0 TC 8 Z9 8 U1 0 U2 0 PU ASSN MILITARY SURG US PI BETHESDA PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 SN 0026-4075 J9 MIL MED JI Milit. Med. PD FEB PY 1993 VL 158 IS 2 BP 77 EP 80 PG 4 WC Medicine, General & Internal SC General & Internal Medicine GA KM459 UT WOS:A1993KM45900008 PM 8441501 ER PT J AU RUDGE, FW AF RUDGE, FW TI THE ROLE OF HYPERBARIC OXYGENATION IN THE TREATMENT OF CLOSTRIDIAL MYONECROSIS SO MILITARY MEDICINE LA English DT Article AB Hyperbaric oxygenation as an adjunct in the treatment of clostridial myonecrosis (gas gangrene) has been used extensively in facilities with hyperbaric chambers. The United States Air Force has had extensive experience in the treatment of clostridial myonecrosis, treating 77 patients since 1965. This study reviews the experience in the treatment of this disease process in military multiplace hyperbaric chambers and provides an in-depth analysis of factors affecting patient survival. A comprehensive review of the literature on the treatment of clostridial myonecrosis with hyperbaric oxygenation is presented in this paper. RP RUDGE, FW (reprint author), USAF,DIV HYPERBAR MED,ARMSTRONG LAB,BROOKS AFB,TX 78235, USA. NR 0 TC 19 Z9 20 U1 0 U2 0 PU ASSN MILITARY SURG US PI BETHESDA PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 SN 0026-4075 J9 MIL MED JI Milit. Med. PD FEB PY 1993 VL 158 IS 2 BP 80 EP 83 PG 4 WC Medicine, General & Internal SC General & Internal Medicine GA KM459 UT WOS:A1993KM45900009 PM 8441502 ER PT J AU SCOTT, RT HAYSLIP, CC ILLIONS, EH AF SCOTT, RT HAYSLIP, CC ILLIONS, EH TI ESTABLISHMENT OF AN ASSISTED REPRODUCTION PROGRAM IN THE ARMED-FORCES SO MILITARY MEDICINE LA English DT Article AB Approximately one in seven couples are infertile. Half of these couples fail to conceive following conventional therapies. Recently, technologies have evolved which provide hope to these couples and lead to cumulative pregnancy rates of 65%. An assisted reproduction (AR) program has recently been established at Wilford Hall Medical Center. The reproductive endocrinologists, on-service residents, and clinic support staff are responsible for all aspects of care including stimulation, retrieval, andrology, embryology, and transfer. To date, there have been 104 transfers with 28 pregnancies. In summary, AR is available in the Armed Forces and allows infertile couples to receive state-of-the-art health care. RP SCOTT, RT (reprint author), WILFORD HALL USAF MED CTR,DEPT OBSTET & GYNECOL,DIV REPROD ENDOCRINOL,LACKLAND AFB,TX 78236, USA. NR 0 TC 2 Z9 2 U1 0 U2 0 PU ASSN MILITARY SURG US PI BETHESDA PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 SN 0026-4075 J9 MIL MED JI Milit. Med. PD FEB PY 1993 VL 158 IS 2 BP 92 EP 96 PG 5 WC Medicine, General & Internal SC General & Internal Medicine GA KM459 UT WOS:A1993KM45900011 PM 8441505 ER PT J AU SENSIPER, M BOREMAN, GD DUCHARME, AD SNYDER, DR AF SENSIPER, M BOREMAN, GD DUCHARME, AD SNYDER, DR TI MODULATION TRANSFER-FUNCTION TESTING OF DETECTOR ARRAYS USING NARROW-BAND LASER SPECKLE SO OPTICAL ENGINEERING LA English DT Article DE MODULATION TRANSFER FUNCTIONS; LASER SPECKLE; DETECTOR ARRAYS; CHARGE-COUPLED DEVICES; ALIASING ID SYSTEMS; DEVICES AB A method for measuring the modulation transfer function (MTF) of a detector array from zero spatial frequency to twice the Nyquist frequency is presented. Laser speckle with a tunable, narrow spatial-frequency bandpass is used. The MTF measured with this method is compared to the MTF measured using sine targets. The results of the two methods agree to within 2%. C1 UNIV CENT FLORIDA,CTR RES ELECTROOPT & LASERS,DEPT ELECT ENGN,ORLANDO,FL 32816. USAF,WRIGHT LAB,MNGI,EGLIN AFB,FL 32542. NR 14 TC 40 Z9 40 U1 1 U2 4 PU SOC PHOTO-OPT INSTRUM ENG PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 SN 0091-3286 J9 OPT ENG JI Opt. Eng. PD FEB PY 1993 VL 32 IS 2 BP 395 EP 400 DI 10.1117/12.60851 PG 6 WC Optics SC Optics GA KL365 UT WOS:A1993KL36500027 ER PT J AU MILLER, SA BLICK, DW KERENYI, SZ MURPHY, MR AF MILLER, SA BLICK, DW KERENYI, SZ MURPHY, MR TI EFFICACY OF PHYSOSTIGMINE AS A PRETREATMENT FOR ORGANOPHOSPHATE POISONING SO PHARMACOLOGY BIOCHEMISTRY AND BEHAVIOR LA English DT Article DE PHYSOSTIGMINE; SOMAN; LETHALITY; ORGANOPHOSPHATE; PYRIDOSTIGMINE ID ORAL PHYSOSTIGMINE; SOMAN; PYRIDOSTIGMINE; INTOXICATION; PROTECTION; PRIMATES; LECITHIN; DISEASE; MEMORY AB Continuous administration of the carbamate physostigmine, producing approximately 40% serum cholinesterase (ChE) inhibition, provides significant protection against the lethal effects of the organophosphorous nerve agent pinacolyl methylphosphonofluoridate (soman). Rats pretreated with physostigmine were also protected against the development of cholinergic symptoms and loss of body weight. Soman and physostigmine both inhibit ChE, yet animals pretreated with physostigmine exhibited less ChE inhibition in serum and brain than did animals exposed to soman alone. In addition, there did not appear to be any additive effect of presenting both anticholinesterases simultaneously. To further examine the effectiveness of physostigmine, we compared the results of this study with previously collected pyridostigmine data from our laboratory. This comparison indicates that physostigmine is more effective than pyridostigmine in protecting against the detrimental effects of soman. C1 SYST RES LABS,BROOKS AFB,TX 78235. RP MILLER, SA (reprint author), ARMSTRONG LAB,OCCUPAT & ENVIRONM HLTH DIRECTORATE,BROOKS AFB,TX 78235, USA. NR 27 TC 21 Z9 21 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0091-3057 J9 PHARMACOL BIOCHEM BE JI Pharmacol. Biochem. Behav. PD FEB PY 1993 VL 44 IS 2 BP 343 EP 347 DI 10.1016/0091-3057(93)90472-6 PG 5 WC Behavioral Sciences; Neurosciences; Pharmacology & Pharmacy SC Behavioral Sciences; Neurosciences & Neurology; Pharmacology & Pharmacy GA KM966 UT WOS:A1993KM96600015 PM 8446666 ER PT J AU CARDIMONA, DA KOVANIS, V SHARMA, MP AF CARDIMONA, DA KOVANIS, V SHARMA, MP TI STARK-EFFECT IN NONLINEAR JAYNES-CUMMINGS MODELS SO PHYSICAL REVIEW A LA English DT Article ID QUANTUM OPTICAL RESONANCE; QUANTIZED RADIATION-FIELD; ATOMIC-STATE COHERENCE; 2 2-LEVEL ATOMS; PHOTON-DISTRIBUTION; PERIODIC DECAY; CAVITY FIELDS; DYNAMICS; REVIVAL; COLLAPSE AB We investigate the effect of the Stark shifts on the atomic-inversion dynamics when a multilevel atom interacts with a two-mode quantized radiation field. We utilize Hamiltonians obtained by adiabatically eliminating all but two of the atomic levels and including terms that give rise to the Stark shifts for a Raman-type process as well as for equal- and unequal-frequency two-photon absorption. We find that the Stark effect is relatively unimportant for Raman scattering but should not be ignored in equal- or unequal-frequency absorption. In equal-frequency absorption, the atomic dynamics can be made exactly periodic through an appropriate choice of detuning. C1 USAF,PHILLIPS LAB,NONLINEAR OPT CTR TECHNOL,KIRTLAND AFB,NM 87117. UNIV NEW MEXICO,DEPT PHYS,ALBUQUERQUE,NM 87131. RP CARDIMONA, DA (reprint author), USAF,PHILLIPS LAB,PASS SENSORS BRANCH,KIRTLAND AFB,NM 87117, USA. NR 37 TC 11 Z9 11 U1 0 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD FEB PY 1993 VL 47 IS 2 BP 1227 EP 1236 DI 10.1103/PhysRevA.47.1227 PG 10 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA KV979 UT WOS:A1993KV97900066 ER PT J AU ANDERSON, ST CHARLESWORTH, RW AF ANDERSON, ST CHARLESWORTH, RW TI RHEUMATOLOGIC DISEASE AMONG AIR-FORCE RECRUITS - A MULTIMILLION-DOLLAR EPIDEMIC SO SEMINARS IN ARTHRITIS AND RHEUMATISM LA English DT Article DE MILITARY MEDICINE; MEDICAL ECONOMICS; PATELLOFEMORAL SYNDROME; PES PLANUS DEFORMITY; LOW BACK PAIN ID STRESS-FRACTURES; OVERUSE INJURIES; PREVENTION RP ANDERSON, ST (reprint author), WILFORD HALL USAF MED CTR,DEPT RHEUMATOL,RHEUMATOL SERV SGHMJ,2200 BERGQUIST DR,SUITE 1,LACKLAND AFB,TX 78236, USA. NR 15 TC 3 Z9 3 U1 3 U2 4 PU W B SAUNDERS CO PI PHILADELPHIA PA INDEPENDENCE SQUARE WEST CURTIS CENTER, STE 300, PHILADELPHIA, PA 19106-3399 SN 0049-0172 J9 SEMIN ARTHRITIS RHEU JI Semin. Arthritis Rheum. PD FEB PY 1993 VL 22 IS 4 BP 275 EP 279 DI 10.1016/0049-0172(93)80075-Q PG 5 WC Rheumatology SC Rheumatology GA KN212 UT WOS:A1993KN21200006 PM 8484134 ER PT J AU LOOK, DC FANG, ZQ SIZELOVE, JR STUTZ, CE AF LOOK, DC FANG, ZQ SIZELOVE, JR STUTZ, CE TI NEW ASGA RELATED CENTER IN GAAS SO PHYSICAL REVIEW LETTERS LA English DT Article ID EL2 DEFECT; IDENTIFICATION; ANTISITE AB A new center related to As(Ga) has been found at relatively high concentrations (10(17) cm-3) in semi-insulating (2 x 10(7) OMEGA cm) molecular beam epitaxial GaAs grown at 400-degrees-C. Although the ir photo-quenching and thermal recovery characteristics are nearly identical to those of EL2, the thermal activation energy is only 0.65 +/- 0.01 eV, much lower than the EL2 value of 0.75 +/- 0.01 eV. Other properties which are different include the electron-capture barrier energy, hyperfine constant, and magnetic circular dichroism spectrum. C1 USAF,SOLID STATE ELECTR DIRECTORATE,WRIGHT LAB,WL,ELRA,DAYTON,OH 45433. RP LOOK, DC (reprint author), WRIGHT STATE UNIV,RES CTR,DAYTON,OH 45435, USA. NR 18 TC 43 Z9 43 U1 0 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD JAN 25 PY 1993 VL 70 IS 4 BP 465 EP 468 DI 10.1103/PhysRevLett.70.465 PG 4 WC Physics, Multidisciplinary SC Physics GA KH615 UT WOS:A1993KH61500027 ER PT J AU CRANNAGE, RP DORKO, EA JOHNSON, DE WHITEFIELD, PD AF CRANNAGE, RP DORKO, EA JOHNSON, DE WHITEFIELD, PD TI SURFACE DEACTIVATION EFFICIENCIES FOR O2(1-DELTA)(G) ON A RANGE OF MATERIALS .1. PYREX, NICKEL, COPPER, NICKEL COPPER ALLOY AND INCONEL SO CHEMICAL PHYSICS LA English DT Article ID SINGLET MOLECULAR-OXYGEN; ENERGY-TRANSFER; LASER AB A kinetic model is presented that describes both homogeneous (k(q)) and heterogeneous (gamma) deactivation of O2(1DELTA)(g) in a flow reactor experiment. The model is validated through measurements made on Pyrex surfaces where k(q) and gamma were found to be (1.6+/-0.4) X 10(-18) and (3.1+/-0.2) X 10(-5) cm3 s-1 respectively. The model has been used to interpret data recorded for aged surfaces of the following metals: nickel gamma = (3.2+/-0.2) X 10(-4), copper gamma = (2.9+/-0.2) X 10(-4), 10/90 nickel-copper alloy gamma = (2.8+/-0.2) X 10(-4), and inconel gamma = (1.2+/-0.2) X 10(-4). C1 USAF,PHILLIPS LAB,KIRTLAND AFB,NM 87117. UNIV MISSOURI,DEPT CHEM,ROLLA,MO 65401. NR 34 TC 16 Z9 16 U1 1 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0301-0104 J9 CHEM PHYS JI Chem. Phys. PD JAN 15 PY 1993 VL 169 IS 2 BP 267 EP 273 DI 10.1016/0301-0104(93)80083-L PG 7 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA KK315 UT WOS:A1993KK31500012 ER PT J AU JONES, SE BUTSON, GJ AF JONES, SE BUTSON, GJ TI ON ABEL IDENTITY .1. NONLINEAR DIFFERENTIAL-EQUATIONS SO JOURNAL OF SOUND AND VIBRATION LA English DT Article RP JONES, SE (reprint author), USAF ACAD,DEPT ENGN MECH,COLORADO SPRINGS,CO 80840, USA. NR 6 TC 4 Z9 4 U1 0 U2 1 PU ACADEMIC PRESS LTD PI LONDON PA 24-28 OVAL RD, LONDON, ENGLAND NW1 7DX SN 0022-460X J9 J SOUND VIB JI J. Sound Vibr. PD JAN 15 PY 1993 VL 160 IS 2 BP 243 EP 249 DI 10.1006/jsvi.1993.1020 PG 7 WC Acoustics; Engineering, Mechanical; Mechanics SC Acoustics; Engineering; Mechanics GA KJ626 UT WOS:A1993KJ62600004 ER PT J AU JONES, SE BUTSON, GJ LEMMERS, PL AF JONES, SE BUTSON, GJ LEMMERS, PL TI ON ABELS IDENTITY .2. THE INTEGRATION OF A NONLINEAR, NONCONSERVATIVE SYSTEM SO JOURNAL OF SOUND AND VIBRATION LA English DT Article RP JONES, SE (reprint author), USAF ACAD,DEPT ENGN MECH,COLORADO SPRINGS,CO 80840, USA. NR 1 TC 6 Z9 6 U1 0 U2 0 PU ACADEMIC PRESS LTD PI LONDON PA 24-28 OVAL RD, LONDON, ENGLAND NW1 7DX SN 0022-460X J9 J SOUND VIB JI J. Sound Vibr. PD JAN 15 PY 1993 VL 160 IS 2 BP 251 EP 257 DI 10.1006/jsvi.1993.1021 PG 7 WC Acoustics; Engineering, Mechanical; Mechanics SC Acoustics; Engineering; Mechanics GA KJ626 UT WOS:A1993KJ62600005 ER PT J AU LOOK, DC FANG, ZQ SIZELOVE, JR AF LOOK, DC FANG, ZQ SIZELOVE, JR TI RECOVERY OF QUENCHED HOPPING CONDUCTION IN GAAS-LAYERS GROWN BY MOLECULAR-BEAM EPITAXY AT 200-DEGREES-C SO PHYSICAL REVIEW B LA English DT Article ID DEFECT; EL2 AB The dark current at 82 K, in GaAs layers grown by molecular-beam epitaxy at 200-degrees-C and annealed at 550-degrees-C, is reduced by a factor 350 after 5 min of IR (hnu less than or similar to 1.12 eV) light illumination. As temperature is swept upward at 0.2 K/s, the current recovers rapidly near 130 K. A numerical analysis of the current recovery, based on hopping conduction, gives an excellent fit to the data for a thermal recovery rate r = 3 X 10(8) exp (-0.26/kT), very close to the rate observed for EL2(AS(Ga)). This proves that the conduction below 300 K in this material is due to hopping between AS(Ga)-related centers in their ground states. Variable-range hopping [exp-(T0/T)1/4] gives a slightly better fit to the data than nearest-neighbor hopping [exp(-epsilon3/kT)] in the range T = 82-160 K, but the fitted recovery rate is not strongly affected no matter which mechanism is assumed. C1 WRIGHT LAB,SOLID STATE ELECTR DIRECTORATE,WL,ELRA,WRIGHT PATTERSON AFB,OH 45433. RP LOOK, DC (reprint author), WRIGHT STATE UNIV,RES CTR,DAYTON,OH 45435, USA. NR 13 TC 16 Z9 16 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0163-1829 J9 PHYS REV B JI Phys. Rev. B PD JAN 15 PY 1993 VL 47 IS 3 BP 1441 EP 1443 DI 10.1103/PhysRevB.47.1441 PG 3 WC Physics, Condensed Matter SC Physics GA KJ518 UT WOS:A1993KJ51800038 ER PT J AU MITTLERNEHER, S OTOMO, A STEGEMAN, GI LEE, CYC MEHTA, R AGRAWAL, AK JENEKHE, SA AF MITTLERNEHER, S OTOMO, A STEGEMAN, GI LEE, CYC MEHTA, R AGRAWAL, AK JENEKHE, SA TI WAVE-GUIDING IN SUBSTRATE SUPPORTED AND FREESTANDING FILMS OF INSOLUBLE CONJUGATED POLYMERS SO APPLIED PHYSICS LETTERS LA English DT Article ID WAVE-GUIDES AB We demonstrate that waveguiding is possible in substrate supported and freestanding films of insoluble conjugated polymers. Photoresist gratings were used to couple 1.06-1.53 mum radiation into the waveguides allowing the refractive indices, the birefringence, and the linear losses to be measured. C1 ADTECH RES,DAYTON,OH 45432. USAF,MAT LAB,MLBP,WL,WRIGHT PATTERSON AFB,OH 45433. UNIV ROCHESTER,DEPT CHEM ENGN,ROCHESTER,NY 14627. RP MITTLERNEHER, S (reprint author), UNIV CENT FLORIDA,CTR RES ELECTROOPT & LASERS,12424 RES PKWY,ORLANDO,FL 32826, USA. RI Mittler, Silvia/B-5639-2015; OI Mehta, Rajeev/0000-0001-9953-3031 NR 14 TC 19 Z9 19 U1 0 U2 1 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD JAN 11 PY 1993 VL 62 IS 2 BP 115 EP 117 DI 10.1063/1.109342 PG 3 WC Physics, Applied SC Physics GA KF689 UT WOS:A1993KF68900001 ER PT J AU SESSLER, WJ DONLEY, MS ZABINSKI, JS WALCK, SD DYHOUSE, VJ AF SESSLER, WJ DONLEY, MS ZABINSKI, JS WALCK, SD DYHOUSE, VJ TI TRIBOLOGICAL BEHAVIOR OF TIC THIN-FILMS GROWN BY PULSED LASER DEPOSITION (PLD) SO SURFACE & COATINGS TECHNOLOGY LA English DT Article AB The tribological behavior of titanium carbide (TiC) thin films grown by excimer pulsed laser deposition (PLD) was investigated. The purpose of this work was to evaluate the effects of film deposition temperature, substrate hardness, and counterface hardness on the friction and wear behavior of the TiC films. Films were grown at room temperature (RT) and at 300-degrees-C. Substrate hardness was varied by selecting the heat treatments of the 440C stainless steel (SS) disks; the counterface hardness was varied through materials selection (eg. hardened 440C SS and sapphire). Friction coefficients and wear lives were determined for each film/substrate/counterface configuration. The wear surfaces were investigated by optical and scanning electron microscopy. The PLD TiC films grown at room temperature and 300-degrees-C were stoichiometric and crystalline, with a grain size of 2-10 nm. The films displayed very good adherence in the wear tests, and their friction coefficients ranged from 0.2 to 0.4 against 440C SS and sapphire balls, which compares well with data of films grown with conventional methods. The wear life of the films deposited on annealed SS was lower than that for films deposited on tempered SS. Films deposited at RT showed a better wear resistance than films deposited at 300-degrees-C, whereas the wear of the SS balls was lower in the tests with the films deposited at 300-degrees-C. The impact of this work is: (i) hard, wear resistant TiC films can be deposited by PLD at temperatures as low as room temperature; and (ii) using PLD, the film deposition temperature can be used to control film properties. C1 WRIGHT LAB,WL,MLBT,WRIGHT PATTERSON AFB,OH 45433. SYSTRAN CORP,DAYTON,OH 45432. UNIV DAYTON,RES INST,DAYTON,OH 45469. NR 8 TC 34 Z9 34 U1 0 U2 2 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0257-8972 J9 SURF COAT TECH JI Surf. Coat. Technol. PD JAN 9 PY 1993 VL 56 IS 2 BP 125 EP 130 DI 10.1016/0257-8972(93)90016-H PG 6 WC Materials Science, Coatings & Films; Physics, Applied SC Materials Science; Physics GA KM585 UT WOS:A1993KM58500005 ER PT J AU KOST, D YEATES, AT DUDIS, DS AF KOST, D YEATES, AT DUDIS, DS TI LINEAR MOLECULAR-MASS DEPENDENCE OF 2ND HYPERPOLARIZABILITIES - LACK OF POLAR ENHANCEMENT IN NONCONJUGATED MOLECULES SO JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS LA English DT Article AB Second hyperpolarizabilities (gamma) of a series of R-X molecules (R = H, Me, Et, Pr(i), Bu(t); X = -NCHO, OH, Me) have been calculated at various ab initio levels; surprisingly, gamma increases nearly linearly with molecular mass, is minimally affected by the functional group X, and is slightly greater for alkanes. C1 BEN GURION UNIV NEGEV,DEPT CHEM,IL-84105 BEER SHEVA,ISRAEL. RP KOST, D (reprint author), USAF,MAT LAB,POLYMER BRANCH,WRIGHT PATTERSON AFB,OH 45433, USA. NR 10 TC 3 Z9 3 U1 0 U2 1 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK MILTON ROAD, CAMBRIDGE, CAMBS, ENGLAND CB4 4WF SN 0022-4936 J9 J CHEM SOC CHEM COMM JI J. Chem. Soc.-Chem. Commun. PD JAN 7 PY 1993 IS 1 BP 83 EP 84 DI 10.1039/c39930000083 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA KH239 UT WOS:A1993KH23900044 ER PT J AU BARNES, PN WU, RLC AF BARNES, PN WU, RLC TI NUCLEATION ENHANCEMENT OF DIAMOND WITH AMORPHOUS FILMS SO APPLIED PHYSICS LETTERS LA English DT Article ID CHEMICAL VAPOR-DEPOSITION; GROWTH AB The nucleation and growth of diamond on pretreated Si substrates were studied. The diamond films were produced by microwave plasma enhanced chemical vapor deposition (PECVD). The pretreatment consisted of an amorphous carbon film also deposited by microwave PECVD. The Si was previously scratched with 0.5 mum diamond paste and cleaned in acetone. This pretreatment of Si resulted in diamond nucleation at densities averaging around 3 X 10(10) cm-2, several orders of magnitude higher than scratched Si alone. RP BARNES, PN (reprint author), WRIGHT LAB,PLASMA RES GRP,POOC-3,WRIGHT PATTERSON AFB,OH 45433, USA. NR 13 TC 65 Z9 66 U1 0 U2 3 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD JAN 4 PY 1993 VL 62 IS 1 BP 37 EP 39 DI 10.1063/1.108811 PG 3 WC Physics, Applied SC Physics GA KE896 UT WOS:A1993KE89600013 ER PT B AU BELL, HH CRANE, PM AF BELL, HH CRANE, PM BE Evans, GW Mollaghasemi, M Russell, EC Biles, WE TI TRAINING UTILITY OF MULTISHIP AIR COMBAT SIMULATION SO 1993 WINTER SIMULATION CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 1993 Winter Simulation Conference CY DEC 12-15, 1993 CL LOS ANGELES, CA SP AMER STAT ASSOC, ASSOC COMP MACHINERY, SPECIAL INTEREST GRP SIMULAT, IEEE, COMP SOC, IEEE, SYST MAN & CYBERNET SOC, INST IND ENGINEERS, NIST, OPERAT RES SOC AMER, INST MANAGEMENT SCI, COLL SIMULAT, SOC COMP SIMULAT INT C1 USAF,ARMSTRONG LAB,MESA,AZ 85206. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1381-X PY 1993 BP 1036 EP 1042 PG 7 WC Computer Science, Interdisciplinary Applications; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BA27E UT WOS:A1993BA27E00141 ER PT B AU CARPENTER, ML BAUER, KW SCHUPPE, TF VIDULICH, MA AF CARPENTER, ML BAUER, KW SCHUPPE, TF VIDULICH, MA BE Evans, GW Mollaghasemi, M Russell, EC Biles, WE TI ANIMATION - WHATS ESSENTIAL FOR EFFECTIVE COMMUNICATION OF MILITARY SIMULATION-MODEL OPERATION SO 1993 WINTER SIMULATION CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 1993 Winter Simulation Conference CY DEC 12-15, 1993 CL LOS ANGELES, CA SP AMER STAT ASSOC, ASSOC COMP MACHINERY, SPECIAL INTEREST GRP SIMULAT, IEEE, COMP SOC, IEEE, SYST MAN & CYBERNET SOC, INST IND ENGINEERS, NIST, OPERAT RES SOC AMER, INST MANAGEMENT SCI, COLL SIMULAT, SOC COMP SIMULAT INT C1 USAF,DEPT OPERAT SCI,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 1 Z9 1 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1381-X PY 1993 BP 1081 EP 1088 PG 8 WC Computer Science, Interdisciplinary Applications; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BA27E UT WOS:A1993BA27E00150 ER PT B AU WOLFE, CW MYKYTKA, EF BORSI, JJ SCHUPPE, TF AF WOLFE, CW MYKYTKA, EF BORSI, JJ SCHUPPE, TF BE Evans, GW Mollaghasemi, M Russell, EC Biles, WE TI THE USE OF SIMULATION TO EVALUATE STRATEGIC AEROMEDICAL EVACUATION POLICY AND PLANNING SO 1993 WINTER SIMULATION CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 1993 Winter Simulation Conference CY DEC 12-15, 1993 CL LOS ANGELES, CA SP AMER STAT ASSOC, ASSOC COMP MACHINERY, SPECIAL INTEREST GRP SIMULAT, IEEE, COMP SOC, IEEE, SYST MAN & CYBERNET SOC, INST IND ENGINEERS, NIST, OPERAT RES SOC AMER, INST MANAGEMENT SCI, COLL SIMULAT, SOC COMP SIMULAT INT C1 AERONAUT SYST CTR,B-2 SYST PROGRAM OFF,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 1 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1381-X PY 1993 BP 1089 EP 1097 PG 9 WC Computer Science, Interdisciplinary Applications; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BA27E UT WOS:A1993BA27E00151 ER PT J AU CLIVER, EW KAHLER, SW VESTRAND, WT AF CLIVER, EW KAHLER, SW VESTRAND, WT GP UNIV CALGARY TI ON THE ORIGIN OF GAMMA-RAY EMISSION FROM THE BEHIND-THE-LIMB FLARE ON 29 SEPTEMBER 1989 SO 23RD INTERNATIONAL COSMIC RAY CONFERENCE, VOL 3: CONTRIBUTED PAPERS - SH SESSIONS LA English DT Proceedings Paper CT 23rd International Cosmic Ray Conference (XXIII ICRC) CY JUL 19-30, 1993 CL CALGARY, CANADA SP INT UNION PURE & APPL PHYS C1 USAF,PHILLIPS LAB,GEOPHYS DIRECTORATE,BEDFORD,MA 01731. NR 0 TC 0 Z9 0 U1 0 U2 0 PU UNIV CALGARY PR PI CALGARY PA 2500 UNIVERSITY DRIVE NW, CALGARY AB T2N 1N4, CANADA PY 1993 BP 91 EP 94 PG 4 WC Astronomy & Astrophysics; Geosciences, Multidisciplinary SC Astronomy & Astrophysics; Geology GA BC09G UT WOS:A1993BC09G00023 ER PT J AU ASAY, AA AF ASAY, AA GP SOC FLIGHT TEST ENGINEERS TI F-16 HANDLING QUALITIES EVALUATION WITH ASYMMETRIC AIR-TO-GROUND EXTERNAL STORES SO 24TH ANNUAL SYMPOSIUM OF THE SOCIETY OF FLIGHT TEST ENGINEERS, PROCEEDINGS SE PROCEEDINGS - ANNUAL SYMPOSIUM OF THE SOCIETY OF FLIGHT TEST ENGINEERS LA English DT Proceedings Paper CT 24th Annual Symposium of the Society-of-Flight-Test-Engineers CY JUL, 1993 CL SEATTLE, WA SP SOC FLIGHT TEST ENGINEERS, SEATTLE CHAPTER C1 USAF,CTR FLIGHT TEST,EDWARDS AFB,CA 93524. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC FLIGHT TEST ENGINEERS PI LANCASTER PA P.O. BOX 4047, LANCASTER, CA 93534 SN 1050-9690 J9 PROC ANN SYMP SFTE PY 1993 BP 53 EP 63 PG 11 WC Engineering, Aerospace SC Engineering GA BC03X UT WOS:A1993BC03X00006 ER PT J AU ERB, RE AF ERB, RE GP SOC FLIGHT TEST ENGINEERS TI TERRAIN FOLLOWING TESTING FOR LOW ENERGY AIRCRAFT AND IMPROVED DATA ANALYSIS TECHNIQUES SO 24TH ANNUAL SYMPOSIUM OF THE SOCIETY OF FLIGHT TEST ENGINEERS, PROCEEDINGS SE PROCEEDINGS - ANNUAL SYMPOSIUM OF THE SOCIETY OF FLIGHT TEST ENGINEERS LA English DT Proceedings Paper CT 24th Annual Symposium of the Society-of-Flight-Test-Engineers CY JUL, 1993 CL SEATTLE, WA SP SOC FLIGHT TEST ENGINEERS, SEATTLE CHAPTER C1 USAF,CTR TEST,EDWARDS AFB,CA 93524. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC FLIGHT TEST ENGINEERS PI LANCASTER PA P.O. BOX 4047, LANCASTER, CA 93534 SN 1050-9690 J9 PROC ANN SYMP SFTE PY 1993 BP 87 EP 112 PG 26 WC Engineering, Aerospace SC Engineering GA BC03X UT WOS:A1993BC03X00009 ER PT J AU BROWN, FS AF BROWN, FS GP SOC FLIGHT TEST ENGINEERS TI NEW PROCEDURES FOR ROLLER COASTER MANEUVERS SO 24TH ANNUAL SYMPOSIUM OF THE SOCIETY OF FLIGHT TEST ENGINEERS, PROCEEDINGS SE PROCEEDINGS - ANNUAL SYMPOSIUM OF THE SOCIETY OF FLIGHT TEST ENGINEERS LA English DT Proceedings Paper CT 24th Annual Symposium of the Society-of-Flight-Test-Engineers CY JUL, 1993 CL SEATTLE, WA SP SOC FLIGHT TEST ENGINEERS, SEATTLE CHAPTER C1 USAF,CTR FLIGHT TEST,EDWARDS AFB,CA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC FLIGHT TEST ENGINEERS PI LANCASTER PA P.O. BOX 4047, LANCASTER, CA 93534 SN 1050-9690 J9 PROC ANN SYMP SFTE PY 1993 BP 181 EP 191 PG 11 WC Engineering, Aerospace SC Engineering GA BC03X UT WOS:A1993BC03X00017 ER PT J AU DILLARD, MW AF DILLARD, MW GP SOC FLIGHT TEST ENGINEERS TI LESSONS LEARNED FROM THE FIREPROOF HYDRAULIC BRAKE SYSTEM TEST PROGRAM SO 24TH ANNUAL SYMPOSIUM OF THE SOCIETY OF FLIGHT TEST ENGINEERS, PROCEEDINGS SE PROCEEDINGS - ANNUAL SYMPOSIUM OF THE SOCIETY OF FLIGHT TEST ENGINEERS LA English DT Proceedings Paper CT 24th Annual Symposium of the Society-of-Flight-Test-Engineers CY JUL, 1993 CL SEATTLE, WA SP SOC FLIGHT TEST ENGINEERS, SEATTLE CHAPTER C1 USAF,TEST WING 4950TH,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC FLIGHT TEST ENGINEERS PI LANCASTER PA P.O. BOX 4047, LANCASTER, CA 93534 SN 1050-9690 J9 PROC ANN SYMP SFTE PY 1993 BP 217 EP 222 PG 6 WC Engineering, Aerospace SC Engineering GA BC03X UT WOS:A1993BC03X00020 ER PT J AU NORTON, WJ AF NORTON, WJ GP SOC FLIGHT TEST ENGINEERS TI C-17A LANDING GEAR SHIMMY TESTING SO 24TH ANNUAL SYMPOSIUM OF THE SOCIETY OF FLIGHT TEST ENGINEERS, PROCEEDINGS SE PROCEEDINGS - ANNUAL SYMPOSIUM OF THE SOCIETY OF FLIGHT TEST ENGINEERS LA English DT Proceedings Paper CT 24th Annual Symposium of the Society-of-Flight-Test-Engineers CY JUL, 1993 CL SEATTLE, WA SP SOC FLIGHT TEST ENGINEERS, SEATTLE CHAPTER C1 USAF,CTR FLIGHT TEST,EDWARDS AFB,CA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC FLIGHT TEST ENGINEERS PI LANCASTER PA P.O. BOX 4047, LANCASTER, CA 93534 SN 1050-9690 J9 PROC ANN SYMP SFTE PY 1993 BP 255 EP 269 PG 15 WC Engineering, Aerospace SC Engineering GA BC03X UT WOS:A1993BC03X00023 ER PT J AU MILLS, MJ MIRACLE, DB AF MILLS, MJ MIRACLE, DB TI THE STRUCTURE OF A(100) AND A(110) DISLOCATION CORES IN NIAL SO ACTA METALLURGICA ET MATERIALIA LA English DT Article ID SINGLE-CRYSTALS; SLIP SYSTEMS; ELECTRONIC-STRUCTURE; DEFORMATION; ALLOYS; GLIDE AB High resolution TEM has been used to observe the core structures of a[100] and a[110] edge dislocations in stoichiometric NiAl. The images indicate that the a[100] edge dislocations have large elastic strain fields but the cores are non-dissociated.Two core structures for the a[110] edge dislocations have been observed. One configuration is climb dissociated into two a/2[111] partial dislocations which are about 1.0 nm apart. These partial dislocations are linked by an anti-phase boundary (APB) which lies normal to the glide plane. In the second configuration, the a[110] core is decomposed into two a[100] dislocations. The implications of these observed core configurations are discussed with respect to dislocation mobility and the macroscopic flow behavior of NiAl. C1 USAF, WRIGHT LAB, WRIGHT PATTERSON AFB, OH 45433 USA. RP MILLS, MJ (reprint author), SANDIA NATL LABS, LIVERMORE, CA 94550 USA. RI Wagner, Martin/A-6880-2008 NR 49 TC 61 Z9 61 U1 1 U2 9 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0956-7151 J9 ACTA METALL MATER JI Acta Metall. Mater. PD JAN PY 1993 VL 41 IS 1 BP 85 EP 95 DI 10.1016/0956-7151(93)90341-O PG 11 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA KC727 UT WOS:A1993KC72700008 ER PT B AU DEMUTS, E AF DEMUTS, E BE Chandra, T Dhingra, AK TI LOW-VELOCITY IMPACT RESISTANCE OF A GRAPHITE BMI SO ADVANCED COMPOSITES '93: INTERNATIONAL CONFERENCE ON ADVANCED COMPOSITE MATERIALS LA English DT Proceedings Paper CT International Conference on Advanced Composite Materials (ICACM) - Advanced Composites 93 CY FEB 15-19, 1993 CL UNIV WOLLONGONG, WOLLONGONG, AUSTRALIA SP MINERALS MET & MAT SOC, PHYS MET COMM HO UNIV WOLLONGONG C1 WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU MINERALS, METALS & MATERIALS SOC PI WARRENDALE PA 420 COMMONWEALTH DR, WARRENDALE, PA 15086 BN 0-87339-251-5 PY 1993 BP 611 EP 615 PG 5 WC Materials Science, Composites SC Materials Science GA BA47E UT WOS:A1993BA47E00089 ER PT B AU SCHWENKER, SW ROMAN, I EYLON, D AF SCHWENKER, SW ROMAN, I EYLON, D BE Chandra, T Dhingra, AK TI CREEP-BEHAVIOR OF SCS-6/TI-6AL-4V UNIDIRECTIONAL COMPOSITES SO ADVANCED COMPOSITES '93: INTERNATIONAL CONFERENCE ON ADVANCED COMPOSITE MATERIALS LA English DT Proceedings Paper CT International Conference on Advanced Composite Materials (ICACM) - Advanced Composites 93 CY FEB 15-19, 1993 CL UNIV WOLLONGONG, WOLLONGONG, AUSTRALIA SP MINERALS MET & MAT SOC, PHYS MET COMM HO UNIV WOLLONGONG C1 USAF,WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 7 Z9 7 U1 2 U2 3 PU MINERALS, METALS & MATERIALS SOC PI WARRENDALE PA 420 COMMONWEALTH DR, WARRENDALE, PA 15086 BN 0-87339-251-5 PY 1993 BP 1169 EP 1176 PG 8 WC Materials Science, Composites SC Materials Science GA BA47E UT WOS:A1993BA47E00175 ER PT B AU REINHART, TJ AF REINHART, TJ GP ESD, THE ENGINEERING SOC TI BONDED COMPOSITE DOUBLERS USED IN THE REPAIR OF CRACKED METALLIC STRUCTURE SO ADVANCED COMPOSITES TECHNOLOGIES LA English DT Proceedings Paper CT 9th Annual ASM/ESD Advanced Composites Conference CY NOV 08-11, 1993 CL DEARBORN, MI SP ESD, THE ENGN SOC, ASM INT, SOC ADV MAT & PROC ENGN, AMER SOC COMPOSITES, MICHIGAN MAT & PROC INST, EDISON MAT TECHNOL CTR C1 WRIGHT LAB,MAT ENGN BRANCH,WRIGHT PATTERSON AFB,OH. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ESD-THE ENGINEERING SOCIETY PI DETROIT PA 100 FARNSWORTH AVE, DETROIT, MI 48202 BN 1-56378-014-3 PY 1993 BP 533 EP 541 PG 9 WC Engineering, Manufacturing; Engineering, Mechanical; Materials Science, Composites SC Engineering; Materials Science GA BC87Q UT WOS:A1993BC87Q00038 ER PT B AU BENNING, SL PIMPINELLA, RJ SEALS, JD AF BENNING, SL PIMPINELLA, RJ SEALS, JD GP IEEE TI THE RELIABLE OPTICAL CARD-EDGE CONNECTOR (ROC) SO AIAA/IEEE DIGITAL AVIONICS SYSTEMS CONFERENCE, 12TH DASC LA English DT Proceedings Paper CT AIAA/IEEE Digital Avionics Systems Conference (12th DASC) CY OCT 25-28, 1993 CL FT WORTH, TX SP AMER INST AERONAUT & ASTRONAUT, IEEE C1 WRIGHT LAB,AVION DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1343-7 PY 1993 BP 124 EP 128 PG 5 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BZ86U UT WOS:A1993BZ86U00022 ER PT B AU CLOUGH, BT AF CLOUGH, BT GP IEEE TI MICROWAVE-INDUCED UPSET OF A DIGITAL FLIGHT CONTROL COMPUTER SO AIAA/IEEE DIGITAL AVIONICS SYSTEMS CONFERENCE, 12TH DASC LA English DT Proceedings Paper CT AIAA/IEEE Digital Avionics Systems Conference (12th DASC) CY OCT 25-28, 1993 CL FT WORTH, TX SP AMER INST AERONAUT & ASTRONAUT, IEEE C1 USAF,WRIGHT LAB,FIGS,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1343-7 PY 1993 BP 173 EP 178 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BZ86U UT WOS:A1993BZ86U00030 ER PT B AU CLOUGH, BT COPE, B DONLEY, S AF CLOUGH, BT COPE, B DONLEY, S GP IEEE TI MICROWAVE-INDUCED UPSET OF DIGITAL FLIGHT CONTROL-SYSTEMS SO AIAA/IEEE DIGITAL AVIONICS SYSTEMS CONFERENCE, 12TH DASC LA English DT Proceedings Paper CT AIAA/IEEE Digital Avionics Systems Conference (12th DASC) CY OCT 25-28, 1993 CL FT WORTH, TX SP AMER INST AERONAUT & ASTRONAUT, IEEE C1 USAF,WRIGHT LAB,FIGS,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1343-7 PY 1993 BP 179 EP 184 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BZ86U UT WOS:A1993BZ86U00031 ER PT B AU HOPPER, DG AF HOPPER, DG GP IEEE TI DIGITAL FLAT-PANEL COCKPIT DISPLAYS AND SPECIFICATION SO AIAA/IEEE DIGITAL AVIONICS SYSTEMS CONFERENCE, 12TH DASC LA English DT Proceedings Paper CT AIAA/IEEE Digital Avionics Systems Conference (12th DASC) CY OCT 25-28, 1993 CL FT WORTH, TX SP AMER INST AERONAUT & ASTRONAUT, IEEE C1 WRIGHT LAB,AFMC,COCKPIT AVION OFF,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1343-7 PY 1993 BP 306 EP 311 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BZ86U UT WOS:A1993BZ86U00050 ER PT B AU RUNYON, KR AF RUNYON, KR GP IEEE TI ADVANCED GRAPHICS PROCESSOR SO AIAA/IEEE DIGITAL AVIONICS SYSTEMS CONFERENCE, 12TH DASC LA English DT Proceedings Paper CT AIAA/IEEE Digital Avionics Systems Conference (12th DASC) CY OCT 25-28, 1993 CL FT WORTH, TX SP AMER INST AERONAUT & ASTRONAUT, IEEE C1 WRIGHT LAB,AFMC,COCKPIT AVION OFF,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1343-7 PY 1993 BP 394 EP 399 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BZ86U UT WOS:A1993BZ86U00064 ER PT B AU WEIMER, JA AF WEIMER, JA GP IEEE TI ELECTRICAL-POWER TECHNOLOGY FOR THE MORE ELECTRIC AIRCRAFT SO AIAA/IEEE DIGITAL AVIONICS SYSTEMS CONFERENCE, 12TH DASC LA English DT Proceedings Paper CT AIAA/IEEE Digital Avionics Systems Conference (12th DASC) CY OCT 25-28, 1993 CL FT WORTH, TX SP AMER INST AERONAUT & ASTRONAUT, IEEE C1 WRIGHT LAB,AERO PROPULS & POWER DIRECTORATE,DIV AEROSP POWER,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 3 Z9 5 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1343-7 PY 1993 BP 445 EP 450 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BZ86U UT WOS:A1993BZ86U00072 ER PT J AU STETSON, KF KIMMEL, RL AF STETSON, KF KIMMEL, RL TI UNIT-REYNOLDS-NUMBER EFFECTS ON BOUNDARY-LAYER-TRANSITION SO AIAA JOURNAL LA English DT Note C1 WRIGHT LAB,HIGH SPEED AERO PERFORMANCE BRANCH,WRIGHT PATTERSON AFB,OH 45433. NR 11 TC 2 Z9 3 U1 0 U2 1 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0001-1452 J9 AIAA J JI AIAA J. PD JAN PY 1993 VL 31 IS 1 BP 195 EP 196 DI 10.2514/3.11337 PG 2 WC Engineering, Aerospace SC Engineering GA KH576 UT WOS:A1993KH57600030 ER PT B AU DALE, J AF DALE, J BE Henkel, PA Augustyn, TW Fishell, WG TI HALE UAVS - FORCE EFFECTIVENESS MULTIPLIERS FOR THEATER CONFLICTS SO AIRBORNE RECONNAISSANCE XVII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Airborne Reconnaissance XVII CY JUL 12-14, 1993 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,WASHINGTON,DC 20330. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1272-4 J9 P SOC PHOTO-OPT INS PY 1993 VL 2023 BP 160 EP 168 DI 10.1117/12.165521 PG 9 WC Engineering, Aerospace; Remote Sensing; Optics SC Engineering; Remote Sensing; Optics GA BZ78G UT WOS:A1993BZ78G00017 ER PT B AU BERGEVIN, DH AF BERGEVIN, DH BE Henkel, PA Augustyn, TW Fishell, WG TI CHALLENGES OF TESTING MANNED AND UNMANNED AERIAL VEHICLES WITH RECONNAISSANCE PAYLOADS SO AIRBORNE RECONNAISSANCE XVII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Airborne Reconnaissance XVII CY JUL 12-14, 1993 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,CTR FLIGHT TEST,UTAH TEST & TRAINING RANGE,DIV ENGN,TEST GRP 545,HILL AFB,UT 84056. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1272-4 J9 P SOC PHOTO-OPT INS PY 1993 VL 2023 BP 284 EP 292 DI 10.1117/12.165533 PG 9 WC Engineering, Aerospace; Remote Sensing; Optics SC Engineering; Remote Sensing; Optics GA BZ78G UT WOS:A1993BZ78G00029 ER PT J AU MANUSOV, EG DOUVILLE, DR PAGE, LV TRIVEDI, DV AF MANUSOV, EG DOUVILLE, DR PAGE, LV TRIVEDI, DV TI OSTEOPETROSIS (MARBLE BONE-DISEASE) SO AMERICAN FAMILY PHYSICIAN LA English DT Article AB Osteopetrosis is a hereditary disorder in which pathologic alteration of osteoclast resorption of bone results in thickening of cortical and lamellar bone. Before bone marrow transplantation, the infantile recessive form was uniformly fatal within the first two decades of life as a result of invasion of the marrow space by abnormal bone formation. The adult autosomal dominant form causes minimal morbidity and is usually diagnosed incidentally on routine radiographs. Although osteopetrosis is an extremely rare disorder, the study of this disease can provide insights into the formation of bone and the inheritance of disease. RP MANUSOV, EG (reprint author), SCOTT MED CTR,SCOTT AFB,IL, USA. NR 0 TC 11 Z9 11 U1 0 U2 0 PU AMER ACAD FAMILY PHYSICIANS PI KANSAS CITY PA 8880 WARD PARKWAY, KANSAS CITY, MO 64114-2797 SN 0002-838X J9 AM FAM PHYSICIAN JI Am. Fam. Physician PD JAN PY 1993 VL 47 IS 1 BP 175 EP 180 PG 6 WC Primary Health Care; Medicine, General & Internal SC General & Internal Medicine GA KG798 UT WOS:A1993KG79800018 PM 8418580 ER PT J AU DOOLEY, DP RHODES, M DREHNER, D AF DOOLEY, DP RHODES, M DREHNER, D TI PSYLLIUM WORM SO AMERICAN JOURNAL OF GASTROENTEROLOGY LA English DT Letter C1 WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. NR 1 TC 0 Z9 0 U1 0 U2 0 PU WILLIAMS & WILKINS PI BALTIMORE PA 351 WEST CAMDEN ST, BALTIMORE, MD 21201-2436 SN 0002-9270 J9 AM J GASTROENTEROL JI Am. J. Gastroenterol. PD JAN PY 1993 VL 88 IS 1 BP 153 EP 154 PG 2 WC Gastroenterology & Hepatology SC Gastroenterology & Hepatology GA KG780 UT WOS:A1993KG78000037 PM 8420263 ER PT J AU GLASS, JD HAUSER, UE RANDOLPH, WW REA, MA DEVRIES, MJ AF GLASS, JD HAUSER, UE RANDOLPH, WW REA, MA DEVRIES, MJ TI IN-VIVO MICRODIALYSIS OF 5-HYDROXYINDOLEACETIC ACID AND GLUTAMIC-ACID IN THE HAMSTER SUPRACHIASMATIC NUCLEI SO AMERICAN ZOOLOGIST LA English DT Article ID CIRCADIAN ACTIVITY RHYTHMS; NEUROTRANSMITTERS; SEROTONIN; SYSTEM; BRAIN; RAT AB The technique of in vivo brain microdialysis rapidly is becoming a popular tool for research on the neurochemical basis of physiological and behavioral functions. The present study describes the application of microdialysis to investigate the endogenous release of 5-hydroxyindoleacetic acid (5-HIAA) and glutamic acid in the suprachiasmatic nuclei (SCN) of hamsters. There were apparent circadian patterns of release of both of these neurosecretions, with peak levels occurring during the dark phase. Pharmacological manipulations of serotonin release and reuptake, using tetrodotoxin and citalopram, respectively, provided evidence that the nocturnal increase in 5-HIAA reflects an increase in serotonergic synaptic activity, rather than intraneuronal metabolism of unreleased serotonin. These results illustrate the usefulness of the microdialysis technique for studies on the neurochemistry of central pacemaker function. C1 USAF,SCH AEROSP MED,BROOKS AFB,TX 78235. LEIDEN UNIV,DEPT PHYSIOL & PHYSIOL PHYS,LEIDEN,NETHERLANDS. RP GLASS, JD (reprint author), KENT STATE UNIV,DEPT BIOL SCI,KENT,OH 44242, USA. NR 17 TC 8 Z9 8 U1 0 U2 1 PU AMER SOC ZOOLOGISTS PI LAWRENCE PA 1041 NEW HAMPSHIRE ST, LAWRENCE, KS 66044 SN 0003-1569 J9 AM ZOOL JI Am. Zool. PY 1993 VL 33 IS 2 BP 212 EP 218 PG 7 WC Zoology SC Zoology GA LN351 UT WOS:A1993LN35100012 ER PT J AU EVANS, TJ AF EVANS, TJ TI DETECTION OF INTRAVASCULARLY LOCATED EPIDURAL CATHETER SO ANESTHESIA AND ANALGESIA LA English DT Letter RP EVANS, TJ (reprint author), 58TH MED GRP,DEPT ANESTHESIOL,LUKE AFB,AZ 85309, USA. NR 4 TC 0 Z9 0 U1 0 U2 0 PU WILLIAMS & WILKINS PI BALTIMORE PA 351 WEST CAMDEN ST, BALTIMORE, MD 21201-2436 SN 0003-2999 J9 ANESTH ANALG JI Anesth. Analg. PD JAN PY 1993 VL 76 IS 1 BP 203 EP 204 PG 2 WC Anesthesiology SC Anesthesiology GA KY036 UT WOS:A1993KY03600038 PM 8418729 ER PT J AU HOWELL, WC AF HOWELL, WC TI ENGINEERING PSYCHOLOGY IN A CHANGING WORLD SO ANNUAL REVIEW OF PSYCHOLOGY LA English DT Review DE HUMAN FACTORS; ERGONOMICS; APPLIED EXPERIMENTAL PSYCHOLOGY; COMPLEX SKILLS ID TASK-PERFORMANCE; COLOR DISPLAYS; OLDER DRIVERS; MENTAL MODELS; SYSTEM; STRESS; ATTENTION; SEARCH; INTEGRATION; ACQUISITION RP HOWELL, WC (reprint author), ARMSTRONG LAB,HUMAN RESOURCES DIRECTORATE,BROOKS AFB,TX 78235, USA. NR 224 TC 11 Z9 11 U1 0 U2 1 PU ANNUAL REVIEWS INC PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0139 SN 0066-4308 J9 ANNU REV PSYCHOL JI Annu. Rev. Psychol. PY 1993 VL 44 BP 231 EP 263 DI 10.1146/annurev.psych.44.1.231 PG 33 WC Psychology; Psychology, Multidisciplinary SC Psychology GA KL135 UT WOS:A1993KL13500008 PM 19845464 ER PT S AU HEBERLING, ME GRAHAM, TS AF HEBERLING, ME GRAHAM, TS GP AMER PROD & INVENTORY CONTROL SOC TI ENVIRONMENTAL STRATEGIES THAT MAKE BUSINESS SENSE SO APICS 36TH INTERNATIONAL CONFERENCE PROCEEDINGS: BUSINESS IS WAR - PREPARE TO WIN! SE ANNUAL INTERNATIONAL CONFERENCE PROCEEDINGS - AMERICAN PRODUCTION AND INVENTORY CONTROL SOCIETY, INTERNATIONAL CONFERENCE LA English DT Proceedings Paper CT 36th International Conference of the American-Production-and-Inventory-Control-Society - Business is War: Prepare to Win CY OCT 10-15, 1993 CL SAN ANTONIO, TX SP AMER PROD & INVENTORY CONTROL SOC C1 USAF,DEPT GRAD ACQUISIT MANAGEMENT,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER PRODUCTION & INVENTORY CONTROL SOC PI FALLS CHURCH PA 500 W ANNANDALE RD, FALLS CHURCH, VA 22046-4274 SN 0895-6367 BN 1-55822-104-2 J9 ANN APICS PY 1993 BP 165 EP 167 PG 3 WC Business; Management SC Business & Economics GA BC38L UT WOS:A1993BC38L00049 ER PT B AU COLOMBI, J KREPP, D ROGERS, S RUCK, D OXLEY, M AF COLOMBI, J KREPP, D ROGERS, S RUCK, D OXLEY, M BE Rogers, SK TI MULTISENSOR USER AUTHENTICATION SO APPLICATIONS OF ARTIFICIAL NEURAL NETWORKS IV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 4th International Conference on Applications of Artificial Neural Networks CY APR 13-16, 1993 CL ORLANDO, FL SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,INST TECHNOL,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1201-5 J9 P SOC PHOTO-OPT INS PY 1993 VL 1965 BP 2 EP 16 DI 10.1117/12.152612 PG 15 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic; Optics SC Computer Science; Engineering; Optics GA BZ45G UT WOS:A1993BZ45G00001 ER PT B AU SWANSON, DE ROGERS, SK RUCK, DW AF SWANSON, DE ROGERS, SK RUCK, DW BE Rogers, SK TI APPLICATION OF A NEURAL ARCHITECTURE TO EXTRACT MOTION FROM IMAGE SEQUENCES SO APPLICATIONS OF ARTIFICIAL NEURAL NETWORKS IV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 4th International Conference on Applications of Artificial Neural Networks CY APR 13-16, 1993 CL ORLANDO, FL SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS DE MOTION SEGMENTATION; NEURAL NETWORK; VISION; RETINA; SIMULATION C1 USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1201-5 J9 P SOC PHOTO-OPT INS PY 1993 VL 1965 BP 172 EP 182 DI 10.1117/12.152565 PG 11 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic; Optics SC Computer Science; Engineering; Optics GA BZ45G UT WOS:A1993BZ45G00013 ER PT B AU SUNDSTROM, B MIN, K AF SUNDSTROM, B MIN, K BE Rogers, SK TI IDENTIFICATION OF PASSIVE MILLIMETER-WAVE IMAGES USING NEURAL NETWORKS SO APPLICATIONS OF ARTIFICIAL NEURAL NETWORKS IV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 4th International Conference on Applications of Artificial Neural Networks CY APR 13-16, 1993 CL ORLANDO, FL SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,WRIGHT LAB,EGLIN AFB,FL 32542. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1201-5 J9 P SOC PHOTO-OPT INS PY 1993 VL 1965 BP 190 EP 201 DI 10.1117/12.152577 PG 12 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic; Optics SC Computer Science; Engineering; Optics GA BZ45G UT WOS:A1993BZ45G00015 ER PT B AU KOUBA, ET ROGERS, SK RUCK, DW BAUER, KW AF KOUBA, ET ROGERS, SK RUCK, DW BAUER, KW BE Rogers, SK TI RECURRENT NEURAL NETWORKS FOR RADAR TARGET IDENTIFICATION SO APPLICATIONS OF ARTIFICIAL NEURAL NETWORKS IV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 4th International Conference on Applications of Artificial Neural Networks CY APR 13-16, 1993 CL ORLANDO, FL SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1201-5 J9 P SOC PHOTO-OPT INS PY 1993 VL 1965 BP 256 EP 266 DI 10.1117/12.152541 PG 11 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic; Optics SC Computer Science; Engineering; Optics GA BZ45G UT WOS:A1993BZ45G00021 ER PT B AU NERING, J KABRISKY, M ROGERS, S LEAHY, M AF NERING, J KABRISKY, M ROGERS, S LEAHY, M BE Rogers, SK TI AFIT NEURAL TACTILE SENSOR SO APPLICATIONS OF ARTIFICIAL NEURAL NETWORKS IV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 4th International Conference on Applications of Artificial Neural Networks CY APR 13-16, 1993 CL ORLANDO, FL SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,INST TECHNOL,DEPT ELECT ENGN,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1201-5 J9 P SOC PHOTO-OPT INS PY 1993 VL 1965 BP 468 EP 479 DI 10.1117/12.152547 PG 12 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic; Optics SC Computer Science; Engineering; Optics GA BZ45G UT WOS:A1993BZ45G00043 ER PT B AU CALVIN, J ROGERS, S ZAHIRNIAK, D RUCK, D OXLEY, M AF CALVIN, J ROGERS, S ZAHIRNIAK, D RUCK, D OXLEY, M BE Rogers, SK TI CHARACTERIZATION OF THE 80170NX (ETANN) CHIP SIGMOIDAL TRANSFER-FUNCTION FOR A DEVICE VGAIN = 3.3V SO APPLICATIONS OF ARTIFICIAL NEURAL NETWORKS IV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 4th International Conference on Applications of Artificial Neural Networks CY APR 13-16, 1993 CL ORLANDO, FL SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,INST TECHNOL,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1201-5 J9 P SOC PHOTO-OPT INS PY 1993 VL 1965 BP 654 EP 661 DI 10.1117/12.152567 PG 8 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic; Optics SC Computer Science; Engineering; Optics GA BZ45G UT WOS:A1993BZ45G00060 ER PT J AU LOOS, GC AF LOOS, GC TI WAVELENGTH-DEPENDENT SENSITIVITY LIMITATIONS AFFECTING LOW LIGHT LEVEL MICHELSON STELLAR INTERFEROMETRY SO APPLIED OPTICS LA English DT Article AB The use of multiple aperture ground interferometers to measure directly the diameters of resolvable stars or to determine the separations and position angles of compact multiple star systems is well established in the literature. The general utility of this technique for producing catalogs of such observations, however, is fundamentally constrained by such noise processes as shot noise, detector dark current, and background radiation, all of which limit interferometric sensitivity. We review the various sensitivity limitations affecting low light level Michelson amplitude interferometry for these applications and calculate the wavelength-dependent detection thresholds as expressed in limiting stellar visual magnitudes that can be so achieved. RP LOOS, GC (reprint author), USAF, PHILLIPS LAB, IMAGING TECHNOL BRANCH, PL-LIMI, KIRTLAND AFB, NM 87117 USA. NR 3 TC 0 Z9 0 U1 0 U2 1 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD JAN 1 PY 1993 VL 32 IS 1 BP 52 EP 56 PG 5 WC Optics SC Optics GA KG977 UT WOS:A1993KG97700006 PM 20802660 ER PT J AU BROOK, I HULBURD, CS AF BROOK, I HULBURD, CS TI PSEUDOMONAS-AERUGINOSA IATROGENIC BLEPHAROCONJUNCTIVITIS SO ARCHIVES OF OPHTHALMOLOGY LA English DT Article RP BROOK, I (reprint author), USAF,RADIOBIOL RES INST,BETHESDA,MD 20889, USA. NR 3 TC 2 Z9 2 U1 0 U2 0 PU AMER MEDICAL ASSOC PI CHICAGO PA 515 N STATE ST, CHICAGO, IL 60610 SN 0003-9950 J9 ARCH OPHTHALMOL-CHIC JI Arch. Ophthalmol. PD JAN PY 1993 VL 111 IS 1 BP 26 EP 27 PG 2 WC Ophthalmology SC Ophthalmology GA KG782 UT WOS:A1993KG78200015 PM 8424719 ER PT J AU YATES, RA AF YATES, RA GP AMER SOC QUAL CONTROL TI ESTABLISHING A TQM CULTURE WITHIN A MILITARY MEDICAL ENVIRONMENT SO ASQC 47TH ANNUAL QUALITY CONGRESS LA English DT Proceedings Paper CT 47th Annual Quality Congress of the American-Society-for-Quality-Control - Proven Results Through Total Quality CY MAY 24-26, 1993 CL BOSTON, MA SP AMER SOC QUAL CONTROL C1 QUAL TEAM,653D MED GRP,ROBINS AFB,GA 31098. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER SOC QUALITY CONTROL PI MILWAUKEE PA 611 E WISCONSIN AVENUE, MILWAUKEE, WI 53202 PY 1993 BP 59 EP 63 PG 5 WC Engineering, Industrial; Management SC Engineering; Business & Economics GA BB77U UT WOS:A1993BB77U00009 ER PT J AU NASHOLD, GP BAFFORD, JK CREIMAN, JA AF NASHOLD, GP BAFFORD, JK CREIMAN, JA GP AMER SOC QUAL CONTROL TI PROCESS OWNERSHIP IN A LABOR INTENSIVE ENVIRONMENT SO ASQC 47TH ANNUAL QUALITY CONGRESS LA English DT Proceedings Paper CT 47th Annual Quality Congress of the American-Society-for-Quality-Control - Proven Results Through Total Quality CY MAY 24-26, 1993 CL BOSTON, MA SP AMER SOC QUAL CONTROL C1 WESTINGHOUSE ELECTR SYST GRP,USAF,DIV AVION,BALTIMORE,MD 21203. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER SOC QUALITY CONTROL PI MILWAUKEE PA 611 E WISCONSIN AVENUE, MILWAUKEE, WI 53202 PY 1993 BP 621 EP 627 PG 7 WC Engineering, Industrial; Management SC Engineering; Business & Economics GA BB77U UT WOS:A1993BB77U00086 ER PT B AU KOEFFLER, SC WELSH, BM AF KOEFFLER, SC WELSH, BM BE Kohnle, A Miller, WB TI REMOTE-SENSING OF ATMOSPHERIC-TURBULENCE AND TRANSVERSE ATMOSPHERIC WINDS USING OPTICAL REFERENCE SOURCES SO ATMOSPHERIC PROPAGATION AND REMOTE SENSING II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Atmospheric Propagation and Remote Sensing II CY APR 14-15, 1993 CL ORLANDO, FL SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1204-X J9 P SOC PHOTO-OPT INS PY 1993 VL 1968 BP 229 EP 237 DI 10.1117/12.154826 PG 9 WC Meteorology & Atmospheric Sciences; Optics SC Meteorology & Atmospheric Sciences; Optics GA BZ45H UT WOS:A1993BZ45H00021 ER PT B AU HARRINGTON, PM WELSH, BM AF HARRINGTON, PM WELSH, BM BE Kohnle, A Miller, WB TI THE EFFECT OF AN ADAPTIVE OPTICAL-SYSTEMS SPATIOTEMPORAL RESPONSE ON IMAGING PERFORMANCE SO ATMOSPHERIC PROPAGATION AND REMOTE SENSING II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Atmospheric Propagation and Remote Sensing II CY APR 14-15, 1993 CL ORLANDO, FL SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1204-X J9 P SOC PHOTO-OPT INS PY 1993 VL 1968 BP 413 EP 423 DI 10.1117/12.154847 PG 11 WC Meteorology & Atmospheric Sciences; Optics SC Meteorology & Atmospheric Sciences; Optics GA BZ45H UT WOS:A1993BZ45H00043 ER PT J AU SNYDER, QC LEZOTTE, DC AF SNYDER, QC LEZOTTE, DC TI PROSPECTIVE ASSESSMENT OF STEREOSCOPIC VISUAL STATUS AND USAF PILOT TRAINING ATTRITION SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID VISION AB The role of stereopsis (i.e., the use of binocular cues for depth perception) in military aviation is undetermined. Pilots possessing adequate near stereopsis but having deficient distant stereopsis are thought to have microtropias. Historical reviews of microtropia and research concerning the role of depth perception in military aviation are described. A historical prospective study of student pilots entering U.S. Air Force Undergraduate Pilot Training (UPT) from Oct 1990 through Sep 1991 (FY 90-91) compares UPT attrition rates according to their preselection stereoscopic status (microtropia vs. normal). Univariate and multiple logistic regression analyses do not show significant differences in attrition rates between the two groups, implying that distant stereopsis is not critical to successful completion of UPT. The U.S. Air Force decided in Oct 91 to eliminate near stereoscopic vision screening while retaining distant stereoacuity testing as a criterion for candidates to qualify medically for UPT. Valid rationale for this decision includes simplified and uniform administration of stereoacuity testing, minimizing spurious results, the continued validity of stereopsis testing as a cross-check of other areas of visual function, the uncertain role of stereopsis in critical areas of flight operations, and the large applicant pool competing for a limited number of pilot training positions. C1 USAF,SCH AEROSP MED,BROOKS AFB,TX. UNIV COLORADO,HLTH SCI CTR,DEPT PREVENT MED & BIOMETR,DENVER,CO 80262. NR 30 TC 7 Z9 7 U1 0 U2 2 PU AEROSPACE MEDICAL ASSOC PI ALEXANDRIA PA 320 S HENRY ST, ALEXANDRIA, VA 22314-3579 SN 0095-6562 J9 AVIAT SPACE ENVIR MD JI Aviat. Space Environ. Med. PD JAN PY 1993 VL 64 IS 1 BP 14 EP 19 PG 6 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA KF510 UT WOS:A1993KF51000003 PM 8424734 ER PT J AU CHELEN, WE KABRISKY, M ROGERS, SK AF CHELEN, WE KABRISKY, M ROGERS, SK TI SPECTRAL-ANALYSIS OF THE ELECTROENCEPHALOGRAPHIC RESPONSE TO MOTION SICKNESS SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article AB Ten subjects participated in a laboratory experiment using cross-coupled angular stimulation to induce motion sickness symptoms. A 14-channel montage using subdermal electrodes was employed to record the electroencephalogram during a pre-Coriolis stimulation baseline through to imminent emesis. Spectral analyses of the EEG were performed upon the recorded data and individual band energies were quantified to attempt to characterize the cortical electrical response to motion sickness. Power spectral analysis was performed upon the temporofrontal signals through the entire period over the delta, theta, and alpha EEG bands. The power in each of these bands was integrated and the baseline periods compared with that during frank sickness. Mean power spectral energy in the delta band during frank sickness increased by a factor of 13.7 over baseline. Mean theta band energy increased by a factor of 2.2. Mean alpha band energy was not significantly different. EEG power spectral levels in the delta and theta bands increased along with the level of motion sickness symptoms. These changes, particularly those in the delta band, suggest that intense low frequency oscillatory stimulation is being diffusely projected about the central nervous system. These EEG changes, similar to those sometimes seen in partial seizures, and the similarity of the symptom/sign complex in the two disorders, provide evidence that the pathophysiology and electrophysiology of motion sickness may be a variant of seizure activity. C1 USAF,INST TECHNOL,WRIGHT PATTERSON AFB,OH 45433. ARMSTRONG AEROSP MED RES LAB,WRIGHT PATTERSON AFB,OH. NR 22 TC 29 Z9 32 U1 0 U2 0 PU AEROSPACE MEDICAL ASSOC PI ALEXANDRIA PA 320 S HENRY ST, ALEXANDRIA, VA 22314-3579 SN 0095-6562 J9 AVIAT SPACE ENVIR MD JI Aviat. Space Environ. Med. PD JAN PY 1993 VL 64 IS 1 BP 24 EP 29 PG 6 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA KF510 UT WOS:A1993KF51000005 PM 8424736 ER PT J AU KERANS, RJ PARTHASARATHY, TA JERO, PD CHATTERJEE, A PAGANO, NJ AF KERANS, RJ PARTHASARATHY, TA JERO, PD CHATTERJEE, A PAGANO, NJ TI FRACTURE AND SLIDING IN THE FIBER-MATRIX INTERFACE AND FAILURE PROCESSES IN CERAMIC COMPOSITES SO BRITISH CERAMIC TRANSACTIONS LA English DT Article ID FIBER-REINFORCED COMPOSITES; PULL-OUT; INDENTATION METHOD; SHEAR-STRENGTH; PUSHOUT TESTS; GLASS-MATRIX; STRESS; ROUGHNESS; FRICTION; CRACKING AB It is evident that fibre debonding and sliding are important factors in determining the mechanical behaviour of ceramic composites. They are also complicated processes dependent on several variables. Numerous issues exist regarding measurement and interpretation Of interface properties and elucidation of the roles of these variables. An analytical model of pull/push-out tests which allows separation of many of these factors is described and the predictions of the model are summarised in parametric form. Recent efforts identifying the role and implications of one of these factors, fibre surface roughness, are discussed in more detail. While modelling of fracture in composites has provided increasing insight into the role of interface properties, existing analytical models focus on limited portions of the fracture process and do not provide a measure of the relative importance of interface variables. The treatment of fibre/matrix interface properties in several models and the limitations of these models are discussed. C1 UNIVERSAL ENERGY SYST,DAYTON,OH. RP KERANS, RJ (reprint author), WRIGHT LAB,WRIGHT PATTERSON AFB,OH, USA. RI Parthasarathy, Triplicane/B-7146-2011 OI Parthasarathy, Triplicane/0000-0002-5449-9754 NR 47 TC 10 Z9 10 U1 0 U2 4 PU INST MATERIALS PI LONDON PA 1 CARLTON HOUSE TERRACE, LONDON, ENGLAND SW1Y 5DB SN 0967-9782 J9 BRIT CERAM T JI Br. Ceram. Trans. PY 1993 VL 92 IS 5 BP 181 EP 196 PG 16 WC Materials Science, Ceramics SC Materials Science GA ML471 UT WOS:A1993ML47100001 ER PT B AU NEWELL, T ALSING, PM GAVRIELIDES, A KOVANIS, V AF NEWELL, T ALSING, PM GAVRIELIDES, A KOVANIS, V BE Roy, R TI SYNCHRONIZATION OF CHAOTIC TRAJECTORIES IN A DIODE RESONATOR USING PROPORTIONAL FEEDBACK SO CHAOS IN OPTICS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Chaos in Optics CY JUL 14-16, 1993 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,CTR NONLINEAR OPT,KIRTLAND AFB,NM 87117. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1288-0 J9 P SOC PHOTO-OPT INS PY 1993 VL 2039 BP 168 EP 179 PG 12 WC Optics SC Optics GA BZ77H UT WOS:A1993BZ77H00017 ER PT B AU GAVRIELIDES, A KOVANIS, V ALSING, PM AF GAVRIELIDES, A KOVANIS, V ALSING, PM BE Roy, R TI CONTROLLING CHAOS IN SEMICONDUCTOR-LASER DEVICES SO CHAOS IN OPTICS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Chaos in Optics CY JUL 14-16, 1993 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,CTR NONLINEAR OPT,KIRTLAND AFB,NM 87117. NR 0 TC 7 Z9 7 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1288-0 J9 P SOC PHOTO-OPT INS PY 1993 VL 2039 BP 250 EP 262 PG 13 WC Optics SC Optics GA BZ77H UT WOS:A1993BZ77H00023 ER PT J AU DUMIRE, R CRABBE, MM MAPPIN, FG FONTENELLE, LJ AF DUMIRE, R CRABBE, MM MAPPIN, FG FONTENELLE, LJ TI AUTOLOGOUS BLOOD PATCH PLEURODESIS FOR PERSISTENT PULMONARY AIR LEAK SO CHEST LA English DT Letter C1 USAF, MED CTR WRIGHT PATTERSON, WRIGHT PATTERSON AFB, OH 45433 USA. BILOXI VA MED CTR, BILOXI, MS USA. NR 0 TC 2 Z9 2 U1 0 U2 0 PU AMER COLL CHEST PHYSICIANS PI NORTHBROOK PA 3300 DUNDEE ROAD, NORTHBROOK, IL 60062-2348 USA SN 0012-3692 J9 CHEST JI Chest PD JAN PY 1993 VL 103 IS 1 BP 326 EP 327 DI 10.1378/chest.103.1.326-b PG 2 WC Critical Care Medicine; Respiratory System SC General & Internal Medicine; Respiratory System GA KG019 UT WOS:A1993KG01900095 ER PT J AU SCHWARTZ, RS JACKSON, WG CELIO, PV RICHARDSON, LA HICKMAN, JR AF SCHWARTZ, RS JACKSON, WG CELIO, PV RICHARDSON, LA HICKMAN, JR TI ACCURACY OF EXERCISE TL-201 MYOCARDIAL SCINTIGRAPHY IN ASYMPTOMATIC YOUNG MEN SO CIRCULATION LA English DT Note DE EXERCISE; TI-201; SCINTIGRAPHY; CORONARY ARTERY DISEASE; BAYES THEOREM ID CORONARY-ARTERY DISEASE; ELECTROCARDIOGRAPHIC STRESS TESTS; DIAGNOSTIC-TESTS; TL-201; RISK; PROBABILITY; SINGLE; BIAS AB Background. Little is known about the diagnostic usefulness of TI-201 scintigraphy for detecting asymptomatic coronary artery disease in apparently healthy men. We thus evaluated planar TI-201 exercise myocardial scintigraphy in 845 asymptomatic male military aircrew undergoing coronary arteriography because of abnormal noninvasive tests suggesting possible myocardial ischemia. Methods and Results. Patients were stratified by prior disease risk into six subgroups using age (<45 and greater-than-or-equal-to 45 years) and ratio of total to high density lipoprotein cholesterol (<4.5, 4.5-6.0, and >6.0). Significant coronary artery disease (greater-than-or-equal-to 50% diameter stenosis in any major coronary artery) was present in 143 (16.9% prevalence). Overall sensitivity and specificity of Tl-201 scintigraphy adjusted for verification bias were estimated to be 45+/-4% and 78+/-1%, respectively. These values are lower than corresponding values accepted for clinical populations. Positive and negative predictive values varied across subgroups. A normal thallium scan indicated low risk of disease, but an abnormal test was likely to be a false-positive result. A logistic equation was retrospectively fit to the data for estimating the probability of disease given age, cholesterol ratio, and thallium results. Within each quintile of estimated risk, the average risk did not differ significantly from the observed disease prevalence. Conclusions. Exercise Tl-201 scintigraphy is limited by the frequent occurrence of false-positive tests in detecting asymptomatic, anatomic coronary artery disease in young men in accordance with Bayesian probability theory. C1 USAF,SCH AEROSP MED,DIV CLIN SCI,BROOKS AFB,TX 78235. NR 41 TC 38 Z9 39 U1 1 U2 2 PU AMER HEART ASSOC PI DALLAS PA 7272 GREENVILLE AVENUE, DALLAS, TX 75231-4596 SN 0009-7322 J9 CIRCULATION JI Circulation PD JAN PY 1993 VL 87 IS 1 BP 165 EP 172 PG 8 WC Cardiac & Cardiovascular Systems; Peripheral Vascular Disease SC Cardiovascular System & Cardiology GA KG434 UT WOS:A1993KG43400019 PM 8419004 ER PT J AU RUSNAK, JM LUCEY, DR AF RUSNAK, JM LUCEY, DR TI CLINICAL GNATHOSTOMIASIS - CASE-REPORT AND REVIEW OF THE ENGLISH-LANGUAGE LITERATURE SO CLINICAL INFECTIOUS DISEASES LA English DT Review ID EOSINOPHILIC MENINGITIS; EPIDEMIOLOGIC CHARACTERISTICS; NEUROLOGICAL MANIFESTATIONS; ANGIOSTRONGYLUS-CANTONENSIS; URINARY GNATHOSTOMIASIS; CNS INVASION; SPINIGERUM; THAILAND; INFECTION; RADICULOMYELITIS AB Human gnathostomiasis is most frequently caused by the nematode Gnathostoma spinigerum. This disease is endemic to Southeast Asia, particularly Thailand and Japan. The clinical presentation is most commonly characterized by localized, intermittent, migratory swellings of the skin and subcutaneous tissues, often in association with localized pain, pruritus, and erythema. Since this worm can migrate to deeper tissues, any organ system may become involved. Characteristically, patients with gnathostomiasis have a moderate to severe elevation of the peripheral eosinophil count, with values not uncommonly exceeding 50% of the total white blood cell count. With modem-day travel and immigration, cases of gnathostomiasis are being diagnosed with increased frequency in the United States. Because of its rarity in this country, however, gnathostomiasis often is not included in an initial differential diagnosis despite the characteristic triad of intermittent migratory swelling, a history of travel to Southeast Asia, and eosinophilia. We report a case of cutaneous gnathostomiasis diagnosed in the United States, and we present a clinical review of the English-language literature on human gnathostomiasis. C1 WALTER REED ARMY INST RES,DEPT RETROVIRAL RES,WASHINGTON,DC 20307. RP RUSNAK, JM (reprint author), WILFORD HALL USAF MED CTR,SGHMMI,DEPT INFECT DIS,LACKLAND AFB,TX 78236, USA. NR 131 TC 86 Z9 89 U1 2 U2 6 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 1058-4838 J9 CLIN INFECT DIS JI Clin. Infect. Dis. PD JAN PY 1993 VL 16 IS 1 BP 33 EP 50 PG 18 WC Immunology; Infectious Diseases; Microbiology SC Immunology; Infectious Diseases; Microbiology GA KG117 UT WOS:A1993KG11700007 PM 8448317 ER PT B AU JOHNSON, AL AF JOHNSON, AL GP IEEE COMMUN SOC TI SATELLITE-COMMUNICATIONS FOR FIGHTERS SO COMMUNICATIONS ON THE MOVE - MILCOM 93: 1993 IEEE MILITARY COMMUNICATIONS CONFERENCE, CONFERENCE RECORD, VOLS 1-3 LA English DT Proceedings Paper CT 1993 IEEE Military Communications Conference (MILCOM 93): Communications on the Move CY OCT 11-14, 1993 CL BOSTON, MA SP IEEE, COMMUN SOC, ARMED FORCES COMMUN & ELECTR ASSOC C1 WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-0953-7 PY 1993 BP 379 EP 383 PG 5 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BZ65D UT WOS:A1993BZ65D00071 ER PT B AU MILLS, RF PRESCOTT, GE AF MILLS, RF PRESCOTT, GE GP IEEE COMMUN SOC TI NONCOHERENT PULSE COMBINING FOR IMPROVED MULTIPLE-ACCESS LPI NETWORK PERFORMANCE SO COMMUNICATIONS ON THE MOVE - MILCOM 93: 1993 IEEE MILITARY COMMUNICATIONS CONFERENCE, CONFERENCE RECORD, VOLS 1-3 LA English DT Proceedings Paper CT 1993 IEEE Military Communications Conference (MILCOM 93): Communications on the Move CY OCT 11-14, 1993 CL BOSTON, MA SP IEEE, COMMUN SOC, ARMED FORCES COMMUN & ELECTR ASSOC C1 USAF,INST TECHNOL,WASHINGTON,DC 20330. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-0953-7 PY 1993 BP 590 EP 594 PG 5 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BZ65D UT WOS:A1993BZ65D00112 ER PT B AU GOLDSTEIN, JS INGRAM, MA AF GOLDSTEIN, JS INGRAM, MA GP IEEE COMMUN SOC TI REDUCED COMPLEXITY ADAPTIVE STRUCTURES FOR JAM-RESISTANT SATELLITE-COMMUNICATIONS SO COMMUNICATIONS ON THE MOVE - MILCOM 93: 1993 IEEE MILITARY COMMUNICATIONS CONFERENCE, CONFERENCE RECORD, VOLS 1-3 LA English DT Proceedings Paper CT 1993 IEEE Military Communications Conference (MILCOM 93): Communications on the Move CY OCT 11-14, 1993 CL BOSTON, MA SP IEEE, COMMUN SOC, ARMED FORCES COMMUN & ELECTR ASSOC C1 USAF,ROME LAB,SPACE COMMUN BRANCH,GRIFFISS AFB,NY 13441. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-0953-7 PY 1993 BP 1033 EP 1037 PG 5 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BZ65D UT WOS:A1993BZ65D00195 ER PT S AU DANIELS, JA SANDHU, RS AF DANIELS, JA SANDHU, RS BE Camponeschi, ET TI EVALUATION OF COMPRESSION SPECIMENS AND FIXTURES FOR TESTING UNIDIRECTIONAL COMPOSITE LAMINATES SO COMPOSITE MATERIALS: TESTING AND DESIGN - ELEVENTH VOLUME SE AMERICAN SOCIETY FOR TESTING AND MATERIALS SPECIAL TECHNICAL PUBLICATION LA English DT Proceedings Paper CT 11th Symposium on Composite Materials: Testing and Design CY MAY 04-05, 1992 CL PITTSBURGH, PA SP AMER SOC TESTING & MAT, COMM HIGH MODULUS FIBERS & THEIR COMPOSITES DE COMPOSITE MATERIALS; COMPRESSION SPECIMEN; FINITE ELEMENT ANALYSIS; COMPRESSION FIXTURES; COMPRESSION TESTING C1 USAF,HQ AFMC STXP,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 4 Z9 4 U1 0 U2 0 PU AMERICAN SOCIETY TESTING AND MATERIALS PI W CONSHOHOCKEN PA 100 BARR HARBOR DRIVE, W CONSHOHOCKEN, PA 19428-2959 SN 1071-5827 BN 0-8031-1879-1 J9 AM SOC TEST MATER PY 1993 VL 1206 BP 103 EP 123 PG 21 WC Materials Science, Characterization & Testing; Materials Science, Composites SC Materials Science GA BZ95F UT WOS:A1993BZ95F00006 ER PT J AU GARRISON, JN AF GARRISON, JN TI DAMAGE TOLERANCE OF COMPOSITE STRUCTURES - FOREWORD SO COMPOSITE STRUCTURES LA English DT Editorial Material RP GARRISON, JN (reprint author), USAF,ADV DEV PROGRAM OFF,WASHINGTON,DC 20330, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0263-8223 J9 COMPOS STRUCT JI Compos. Struct. PY 1993 VL 23 IS 2 BP 85 EP 85 DI 10.1016/0263-8223(93)90012-F PG 1 WC Materials Science, Composites SC Materials Science GA KQ258 UT WOS:A1993KQ25800001 ER PT J AU LEVRAEA, VJ PALAZOTTO, AN MADDUX, GE AF LEVRAEA, VJ PALAZOTTO, AN MADDUX, GE TI THE EFFECT OF CUTOUT POSITIONING ON THE DYNAMIC CHARACTERISTICS OF A CURVED COMPOSITE PANEL SO COMPOSITE STRUCTURES LA English DT Article AB An investigation of the effects of eccentrically located square cutouts on the natural frequencies and mode shapes of circular, cylindrical composite panels was conducted. A video holographic interferometry technique was used to determine experimentally the first five natural frequencies and mode shapes of the panels. Numerically, predictions for these same data were obtained using a finite element method. A clamped-free-clamped-free boundary condition was selected for this study. Cutouts were eccentrically located in both the circumferential and axial directions. The experimental and numerical results for both the natural frequencies and mode shapes correlated well. The per cent differences between the experimental and numerical frequencies averaged around 7% and were in all cases less than 10%. It was observed that, in general, panels with eccentrically located cutouts experienced only small frequency deviations from those with centered cutouts. The amount of variation observed tended to increase with cutout size. C1 USAF,INST TECHNOL,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433. USAF,INST TECHNOL,MAT COMMAND,FLIGHT DYNAM LAB,WRIGHT PATTERSON AFB,OH 45433. NR 7 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0263-8223 J9 COMPOS STRUCT JI Compos. Struct. PY 1993 VL 23 IS 4 BP 263 EP 272 DI 10.1016/0263-8223(93)90227-H PG 10 WC Materials Science, Composites SC Materials Science GA KV614 UT WOS:A1993KV61400001 ER PT J AU WHITNEY, JM KURTZ, RD AF WHITNEY, JM KURTZ, RD TI ANALYSIS OF ORTHOTROPIC LAMINATED PLATES SUBJECTED TO TORSIONAL LOADING SO COMPOSITES ENGINEERING LA English DT Article AB An exact elasticity solution is obtained for the torsion of rectangular laminated plates. The laminate geometries considered consist of arbitrary numbers of layers which are either isotropic or orthotropic with axes of material symmetry parallel to the plate axes. Example problems are presented for both symmetric and unsymmetric laminates. A comparison is made between solutions generated from the exact elasticity analysis and-two laminated plate theories incorporating transverse shear deformation. These two theories differ in the manner in which the transverse shear constitutive relations are developed. Comparisons include the relationship between torque and angle of twist, and through-the-thickness distributions of both the in-plane and interlaminar shear stresses. C1 USAF ACAD,DEPT ENGN MECH,COLORADO SPRINGS,CO 80840. RP WHITNEY, JM (reprint author), UNIV DAYTON,DAYTON,OH 45469, USA. NR 5 TC 15 Z9 15 U1 1 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0961-9526 J9 COMPOS ENG JI Compos. Eng. PY 1993 VL 3 IS 1 BP 83 EP 97 DI 10.1016/0961-9526(93)90033-G PG 15 WC Engineering, Multidisciplinary; Materials Science, Composites SC Engineering; Materials Science GA JN560 UT WOS:A1993JN56000007 ER PT J AU HUI, D WU, S AF HUI, D WU, S TI USE OF COMPOSITES IN AIRCRAFT - FOREWORD SO COMPOSITES ENGINEERING LA English DT Editorial Material C1 USAF,OFF SCI RES,WASHINGTON,DC 20330. RP HUI, D (reprint author), UNIV NEW ORLEANS,NEW ORLEANS,LA 70148, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0961-9526 J9 COMPOS ENG JI Compos. Eng. PY 1993 VL 3 IS 7-8 BP R7 EP R7 DI 10.1016/0961-9526(93)90083-V PG 1 WC Engineering, Multidisciplinary; Materials Science, Composites SC Engineering; Materials Science GA LM487 UT WOS:A1993LM48700001 ER PT J AU MALL, S MOSCHELLE, WR PERNOT, JJ AF MALL, S MOSCHELLE, WR PERNOT, JJ TI FATIGUE BEHAVIOR OF A FIBER-REINFORCED CERAMIC-MATRIX COMPOSITE WITH A CIRCULAR HOLE SO COMPOSITES SCIENCE AND TECHNOLOGY LA English DT Article DE CERAMIC-MATRIX COMPOSITE; FATIGUE BEHAVIOR ID TENSILE; GLASS AB The tensile fatigue behavior of an aluminosilicate glass-ceramic composite reinforced with silicon carbide fibers, SiC/1723, in the presence of a circular hole has been investigated. Two lay-ups were studied, [0-degrees]8 and [0-degrees/90-degrees]2s. The ceramic composites with both lay-ups exhibited a dichotomous type of fatigue behavior. Specimens tested above 80% of ultimate strength failed in considerably less than one million cycles. Specimens tested below this level did not fail over one million fatigue cycles. In unidirectional laminates, the damage mechanism involved the initiation and growth of four cracks at the hole where the shear stress concentration was a maximum. Cross-ply laminates displayed transverse matrix cracks in the 90-degrees plies, which coalesced at the 0-degrees/90-degrees, interface leading to local delamination, and finally failure, in the 0-degrees plies. RP MALL, S (reprint author), USAF,INST TECHNOL,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433, USA. NR 15 TC 2 Z9 2 U1 0 U2 3 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0266-3538 J9 COMPOS SCI TECHNOL JI Compos. Sci. Technol. PY 1993 VL 49 IS 2 BP 173 EP 182 DI 10.1016/0266-3538(93)90057-N PG 10 WC Materials Science, Composites SC Materials Science GA LV955 UT WOS:A1993LV95500008 ER PT J AU SUN, CT CHEN, JL SHA, GT KOOP, WE AF SUN, CT CHEN, JL SHA, GT KOOP, WE TI AN INVESTIGATION OF THE MECHANICAL-BEHAVIOR OF SCS-6/TI-6-4 METAL-MATRIX COMPOSITE AT ELEVATED-TEMPERATURES SO COMPOSITES SCIENCE AND TECHNOLOGY LA English DT Article DE METAL-MATRIX COMPOSITE; ELEVATED TEMPERATURES; THERMAL STRESSES; PLASTICITY; INTERFACIAL BOND; FAILURE CRITERION ID FIBROUS COMPOSITES; PLASTIC BEHAVIOR AB The orthotropic, non-linear stress/strain behavior of SCS-6/Ti-6-4 metal matrix composite at room temperature, 204-degrees-C and 316-degrees-C was investigated experimentally by testing off-axis coupon specimens. A one-parameter plasticity model was used to describe this non-linear behavior. In addition, a micromechanical model assuming elastic fiber and elastic-plastic matrix was used to estimate the fiber/matrix bond strength on the basis of the apparent yield stress obtained from the off-axis test result. A failure criterion was also proposed from which the inplane shear strength of the composite was obtained. C1 GM CORP,DIV ALLISON GAS TURBINE,INDIANAPOLIS,IN 46206. USAF,WRIGHT AERONAUT LABS,AERO PROPULS LAB,WRIGHT PATTERSON AFB,OH 45433. RP SUN, CT (reprint author), PURDUE UNIV,SCH AERONAUT & ASTRONAUT,W LAFAYETTE,IN 47907, USA. NR 12 TC 10 Z9 10 U1 2 U2 2 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0266-3538 J9 COMPOS SCI TECHNOL JI Compos. Sci. Technol. PY 1993 VL 49 IS 2 BP 183 EP 190 DI 10.1016/0266-3538(93)90058-O PG 8 WC Materials Science, Composites SC Materials Science GA LV955 UT WOS:A1993LV95500009 ER PT J AU FIDAN, S PALAZOTTO, A TSAI, CT KUMAR, S AF FIDAN, S PALAZOTTO, A TSAI, CT KUMAR, S TI COMPRESSIVE PROPERTIES OF HIGH-PERFORMANCE POLYMERIC FIBERS SO COMPOSITES SCIENCE AND TECHNOLOGY LA English DT Article DE FIBERS; COMPRESSION; KINK BAND; FAILURE MODES; ELASTICA LOOP TEST; BENDING BEAM TEST ID STRENGTH AB The elastic loop and bending beam test methods have been conducted for several high-performance polymeric fibers including Kevlar PPTA [poly(p-phenylene terephathalamide)], PBO [poly(p-phenylene benzobisoxazole)] and PBZT [poly(p-phenylene benzobisthiazole)], in order to obtain their compressive properties. The compressive failure modes of fibers, which occur as a kink band formation in polymeric fibers, are also investigated. A comparison of the results obtained here is made with previous studies. It is found that the compressive strengths of fibers obtained from elastica loop and bending beam tests are generally higher than those obtained from composite compressive tests. The kink band formation in polymeric fibers represents the microbuckling of separated microfibrils owing to elastic instability. C1 USAF,INST TECHNOL,WRIGHT PATTERSON AFB,OH 45433. FLORIDA ATLANTIC UNIV,DEPT MECH ENGN,BOCA RATON,FL 33431. GEORGIA INST TECHNOL,SCH TEXT & FIBER ENGN,ATLANTA,GA 30332. RI Kumar, Satish/F-7308-2011 NR 13 TC 13 Z9 13 U1 3 U2 8 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0266-3538 J9 COMPOS SCI TECHNOL JI Compos. Sci. Technol. PY 1993 VL 49 IS 3 BP 291 EP 297 DI 10.1016/0266-3538(93)90110-3 PG 7 WC Materials Science, Composites SC Materials Science GA LW708 UT WOS:A1993LW70800008 ER PT J AU NELSON, P EK, DS AF NELSON, P EK, DS TI LOCFES - A PROGRAM FOR AUTOMATIC-DETERMINATION OF THE ORDER OF SPATIAL APPROXIMATIONS IN ONE-DIMENSIONAL PARTICLE-TRANSPORT SO COMPUTER PHYSICS COMMUNICATIONS LA English DT Software Review DE PARTICLE TRANSPORT; NEUTRON TRANSPORT; DISCRETE ORDINATES; SOURCE ITERATION; (CLOSED) LINEAR ONE-CELL FUNCTIONAL METHODS ID FINITE-DIFFERENCE APPROXIMATIONS; RAY-TRACING CALCULATIONS; NEUTRON-TRANSPORT; SLAB GEOMETRY; CONVERGENCE; EQUATIONS; STABILITY AB The order (of the discretization error) of a spatial approximation is an important and widely used figure of merit for such approximations. For one-dimensional plane-parallel geometries, it has been shown that most such spatial approximations, as used within the discrete-ordinates directional approximation to monoenergetic particle transport, are instances of the abstract class of closed linear one-cell functional (CLOF) methods. The code LOCFES (Linear One-Cell Functional Experimental Studies) provides for highly automated determination of the order of an arbitrary CLOF method. It does so by taking advantage of the fact that such methods are defined by a relatively small number of functions that depend solely upon the direction of particle streaming, the width of the spatial cell under consideration, and the (total) cross-section within that cell. The computational kernel of LOCFES is a subroutine MONSTR (MONonergetic Systems for Transport equation Resolution) that executes discrete source iteration, for a fixed grid and according to input specification (e.g., termination after either a specified number of iterative sweeps, or after convergence to within a specified criterion at specified monitor points.) The particular CLOF method is defined by a user-supplied subroutine that is called (only) by MONSTR, and MONSTR also returns information about the rate of convergence of the source iteration. Estimates of the order are extracted from the results provided by an automatically executed sequence of grid refinements, beginning with some input initial grid, and discrete source iterations (i.e. MONSTR calls). C1 TEXAS A&M UNIV SYST,DEPT NUCL ENGN,COLL STN,TX 77843. TEXAS A&M UNIV SYST,DEPT MATH,COLL STN,TX 77843. USAF ACAD,DEPT PHYS,COLORADO SPRINGS,CO 80840. RP NELSON, P (reprint author), TEXAS A&M UNIV SYST,DEPT COMP SCI,COLL STN,TX 77843, USA. NR 37 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0010-4655 J9 COMPUT PHYS COMMUN JI Comput. Phys. Commun. PD JAN PY 1993 VL 74 IS 1 BP 91 EP 118 DI 10.1016/0010-4655(93)90109-P PG 28 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA KJ657 UT WOS:A1993KJ65700009 ER PT B AU GOLDSTEIN, JS HOLDER, EJ INGRAM, MA AF GOLDSTEIN, JS HOLDER, EJ INGRAM, MA BE Singh, A TI THE APPLICATION OF 2-DIMENSIONAL WAVELETS AND FILTER-BANKS FOR CONVERGENCE ENHANCEMENT IN ADAPTIVE ARRAYS FOR SPACE COMMUNICATIONS SO CONFERENCE RECORD OF THE TWENTY-SEVENTH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS, VOLS 1 AND 2 LA English DT Proceedings Paper CT 27th Asilomar Conference on Signals, Systems and Computers CY NOV 01-03, 1993 CL PACIFIC GROVE, CA SP NAVAL POSTGRAD SCH, SAN JOSE STATE UNIV, IEEE SIGNAL PROC SOC, IEEE COMP SOC C1 USAF,ROME LAB,SPACE COMMUN BRANCH,GRIFFISS AFB,NY 13441. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E, COMPUTER SOC PRESS PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, LOS ALAMITOS, CA 90720 BN 0-8186-4120-7 PY 1993 BP 518 EP 522 PG 5 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BA17F UT WOS:A1993BA17F00102 ER PT B AU CLARK, MP AF CLARK, MP BE Singh, A TI CRAMER-RAO BOUNDS FOR 2-DIMENSIONAL DETERMINISTIC MODAL-ANALYSIS SO CONFERENCE RECORD OF THE TWENTY-SEVENTH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS, VOLS 1 AND 2 LA English DT Proceedings Paper CT 27th Asilomar Conference on Signals, Systems and Computers CY NOV 01-03, 1993 CL PACIFIC GROVE, CA SP NAVAL POSTGRAD SCH, SAN JOSE STATE UNIV, IEEE SIGNAL PROC SOC, IEEE COMP SOC C1 USAF,INST TECHNOL,ENG,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E, COMPUTER SOC PRESS PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, LOS ALAMITOS, CA 90720 BN 0-8186-4120-7 PY 1993 BP 1152 EP 1156 PG 5 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BA17F UT WOS:A1993BA17F00227 ER PT S AU BOSWELL, J ANSPAUGH, B MUELLER, R AF BOSWELL, J ANSPAUGH, B MUELLER, R GP IEEE TI THIN-FILM PHOTOVOLTAIC DEVELOPMENT AT PHILLIPS LABORATORY SO CONFERENCE RECORD OF THE TWENTY THIRD IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1993 SE IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE LA English DT Proceedings Paper CT 23rd IEEE Photovoltaic Specialists Conference CY MAY 10-14, 1993 CL LOUISVILLE, KY SP IEEE, ELECTRON DEVICES SOC C1 USAF,PHILLIPS LAB,KIRTLAND AFB,NM 87117. NR 0 TC 1 Z9 1 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 0160-8371 BN 0-7803-1221-X J9 IEEE PHOT SPEC CONF PY 1993 BP 1324 EP 1329 DI 10.1109/PVSC.1993.346927 PG 6 WC Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BZ85T UT WOS:A1993BZ85T00247 ER PT B AU ROSENSTEIN, AH AF ROSENSTEIN, AH BE Stoloff, NS Duquette, DJ Giamei, AF TI ADVANCED STRUCTURAL-MATERIALS AND PROCESSES SO CRITICAL ISSUES IN THE DEVELOPMENT OF HIGH TEMPERATURE STRUCTURAL MATERIALS LA English DT Proceedings Paper CT Conference on Critical Issues in the Development of High Temperature Structural Materials CY MAR 07-14, 1993 CL KONA, HI C1 USAF,OFF SCI RES,WASHINGTON,DC 20332. NR 0 TC 0 Z9 0 U1 0 U2 0 PU MINERALS, METALS & MATERIALS SOC PI WARRENDALE PA 420 COMMONWEALTH DR, WARRENDALE, PA 15086 BN 0-87339-257-4 PY 1993 BP 491 EP 492 PG 2 WC Materials Science, Ceramics; Materials Science, Composites SC Materials Science GA BA28W UT WOS:A1993BA28W00034 ER PT J AU SHELTON, R AF SHELTON, R TI LINEAR BACTERIAL DISSECTION SO CUTIS LA English DT Article AB An unusual case of an erythematous indurated arcuate plaque with a curvilinear appearance was noted after a patient manipulated an ingrown beard hair. During removal of a biopsy specimen, a purulent discharge was expressed that had evidently dissected through the dermis forming this interesting shape. This may be similar to a recently reported entity described by Shelley and Shelley as linear bacterial dissection.1 Culture of the discharge grew Staphylococcus aureus and Klebsiella pneumoniae. Complete resolution occurred after drainage and antibiotic therapy. Cellulitis and erysipelas typically do not show central clearing or form arcuate plaques. Aside from lymphangitis, thrombophlebitis, and sinus tracts of carbuncles, dermal infectious processes rarely present as linear or arcuate plaques. The differential diagnosis and a review of the literature are presented. C1 USAF,DERMATOL SERV,HAMPTON,VA. NR 5 TC 1 Z9 1 U1 0 U2 0 PU EXCERPTA MEDICA INC PI NEW YORK PA 245 WEST 17TH STREET, NEW YORK, NY 10011 SN 0011-4162 J9 CUTIS JI Cutis PD JAN PY 1993 VL 51 IS 1 BP 43 EP 44 PG 2 WC Dermatology SC Dermatology GA LB051 UT WOS:A1993LB05100009 PM 8419110 ER PT J AU LINSTER, BG AF LINSTER, BG TI A RENT-SEEKING MODEL OF INTERNATIONAL COMPETITION AND ALLIANCES SO DEFENCE ECONOMICS LA English DT Article DE RENT SEEKING; ALLIANCES; DEFENSE SPENDING; MILITARY COMPETITION ID NATO ALLIES AB This paper presents an alternative approach for analyzing international competition and alliances as rent-seeking contests that are able to capture the impure public good nature of defense spending. Two-country Cournot and Stackelberg games are considered and comparative static results derived. A three-country model is investigated, and alliance behavior is explored in the context of this rent-seeking model. The conjecture that an alliance may become less effective if the allies' interests become more closely aligned is verified. Finally, the model is generalized, and a Nash-Cournot equilibrium is computed. RP LINSTER, BG (reprint author), USAF ACAD,DEPT ECON & GEOGR,COLORADO SPRINGS,CO 80840, USA. NR 16 TC 6 Z9 6 U1 0 U2 0 PU HARWOOD ACAD PUBL GMBH PI READING PA C/O STBS LTD, PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 1043-0717 J9 DEFENC ECON PY 1993 VL 4 IS 3 BP 213 EP 226 DI 10.1080/10430719308404761 PG 14 WC Economics SC Business & Economics GA LT413 UT WOS:A1993LT41300001 ER PT B AU THOMAS, SR CARTLEDGE, RM GRAHAM, MR PATTERSON, JA POE, D AF THOMAS, SR CARTLEDGE, RM GRAHAM, MR PATTERSON, JA POE, D GP HUMAN FACTORS & ERGON SOC TI FIELD INVESTIGATIONS OF LASER EYE PROTECTION F-15E AIRCRAFT LIGHTING COMPATIBILITY SO DESIGNING FOR DIVERSITY, VOLS 1 AND 2 LA English DT Proceedings Paper CT Human-Factors-and-Ergomonics-Society 37th Annual Meeting: Designing for Diversity CY OCT 11-15, 1993 CL SEATTLE, WA SP HUMAN FACTORS & ERGON SOC C1 ARMSTRONG LAB,DIV OPT RADIAT,BROOKS AFB,TX. NR 0 TC 0 Z9 0 U1 0 U2 0 PU HUMAN FACTORS AND ERGONOMICS SOC PI SANTA MONICA PA PO BOX 1369, SANTA MONICA, CA 90406-1369 PY 1993 BP 55 EP 59 PG 5 WC Ergonomics; Multidisciplinary Sciences SC Engineering; Science & Technology - Other Topics GA BZ48S UT WOS:A1993BZ48S00012 ER PT J AU SOJOURNER, RJ ARETZ, AJ VANCE, KM AF SOJOURNER, RJ ARETZ, AJ VANCE, KM GP HUMAN FACTORS & ERGON SOC TI TEACHING AN INTRODUCTORY COURSE IN HUMAN-FACTORS ENGINEERING - A SUCCESSFUL LEARNING-EXPERIENCE SO DESIGNING FOR DIVERSITY, VOLS 1 AND 2 LA English DT Proceedings Paper CT Human-Factors-and-Ergomonics-Society 37th Annual Meeting: Designing for Diversity CY OCT 11-15, 1993 CL SEATTLE, WA SP HUMAN FACTORS & ERGON SOC C1 USAF ACAD,COLORADO SPRINGS,CO 80840. NR 0 TC 0 Z9 0 U1 0 U2 0 PU HUMAN FACTORS AND ERGONOMICS SOC PI SANTA MONICA PA PO BOX 1369, SANTA MONICA, CA 90406-1369 PY 1993 BP 456 EP 460 PG 5 WC Ergonomics; Multidisciplinary Sciences SC Engineering; Science & Technology - Other Topics GA BZ48S UT WOS:A1993BZ48S00094 ER PT B AU GOETTL, BP AF GOETTL, BP GP HUMAN FACTORS & ERGON SOC TI ANALYSIS OF SKILL ON A FLIGHT SIMULATOR - IMPLICATIONS FOR TRAINING SO DESIGNING FOR DIVERSITY, VOLS 1 AND 2 LA English DT Proceedings Paper CT Human-Factors-and-Ergomonics-Society 37th Annual Meeting: Designing for Diversity CY OCT 11-15, 1993 CL SEATTLE, WA SP HUMAN FACTORS & ERGON SOC C1 ARMSTRONG LAB,BROOKS AFB,TX. NR 0 TC 0 Z9 0 U1 1 U2 1 PU HUMAN FACTORS AND ERGONOMICS SOC PI SANTA MONICA PA PO BOX 1369, SANTA MONICA, CA 90406-1369 PY 1993 BP 1257 EP 1261 PG 5 WC Ergonomics; Multidisciplinary Sciences SC Engineering; Science & Technology - Other Topics GA BZ48S UT WOS:A1993BZ48S00242 ER PT B AU CHOY, JS HULL, JP ABDALLA, MD SKIPPER, MC AF CHOY, JS HULL, JP ABDALLA, MD SKIPPER, MC BE Prestwich, KR Baker, WL TI SALIENT TRIGGER PARAMETERS FOR INDUCING LOCK-ON IN GALLIUM ARSENIDE PHOTOCONDUCTIVE SEMICONDUCTOR SWITCHES SO DIGEST OF TECHNICAL PAPERS - NINTH IEEE INTERNATIONAL PULSED POWER CONFERENCE, VOLS 1 AND 2 LA English DT Proceedings Paper CT 9th IEEE International Pulsed Power Conference CY JUN 21-23, 1993 CL ALBUQUERQUE, NM SP IEEE, ELECTRON DEVICES SOC, IEEE, NUCL & PLASMA SCI SOC C1 USAF,PHILLIPS LAB,KIRTLAND AFB,NM 87117. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1416-6 PY 1993 BP 684 EP 687 PG 4 WC Engineering, Electrical & Electronic; Engineering, Mechanical; Physics, Fluids & Plasmas SC Engineering; Physics GA BC61N UT WOS:A1993BC61N00172 ER PT B AU BOWLES, EE HEYSE, MW KOLAWOLE, J TACONI, NE AF BOWLES, EE HEYSE, MW KOLAWOLE, J TACONI, NE BE Prestwich, KR Baker, WL TI A 100 KA, 5000-V SOLID STATE OPENING SWITCH FOR RAILGUN APPLICATIONS SO DIGEST OF TECHNICAL PAPERS - NINTH IEEE INTERNATIONAL PULSED POWER CONFERENCE, VOLS 1 AND 2 LA English DT Proceedings Paper CT 9th IEEE International Pulsed Power Conference CY JUN 21-23, 1993 CL ALBUQUERQUE, NM SP IEEE, ELECTRON DEVICES SOC, IEEE, NUCL & PLASMA SCI SOC C1 USAF,WRIGHT LAB,EGLIN AFB,FL 32542. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1416-6 PY 1993 BP 764 EP 767 PG 4 WC Engineering, Electrical & Electronic; Engineering, Mechanical; Physics, Fluids & Plasmas SC Engineering; Physics GA BC61N UT WOS:A1993BC61N00191 ER PT B AU CALICO, SE SCOTT, MC PELLETIER, PR AF CALICO, SE SCOTT, MC PELLETIER, PR BE Prestwich, KR Baker, WL TI THE PHILLIPS LABORATORY REP-RATE PULSER FOR HIGH-POWER MICROWAVE SOURCE DEVELOPMENT SO DIGEST OF TECHNICAL PAPERS - NINTH IEEE INTERNATIONAL PULSED POWER CONFERENCE, VOLS 1 AND 2 LA English DT Proceedings Paper CT 9th IEEE International Pulsed Power Conference CY JUN 21-23, 1993 CL ALBUQUERQUE, NM SP IEEE, ELECTRON DEVICES SOC, IEEE, NUCL & PLASMA SCI SOC C1 USAF,PL WSR,KIRTLAND AFB,NM 87117. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1416-6 PY 1993 BP 869 EP 872 PG 4 WC Engineering, Electrical & Electronic; Engineering, Mechanical; Physics, Fluids & Plasmas SC Engineering; Physics GA BC61N UT WOS:A1993BC61N00219 ER PT B AU VOELZ, DG GONGLEWSKI, JD IDELL, PS AF VOELZ, DG GONGLEWSKI, JD IDELL, PS BE Idell, PS TI SCIP COMPUTER-SIMULATION AND LABORATORY VERIFICATION SO DIGITAL IMAGE RECOVERY AND SYNTHESIS II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Digital Image Recovery and Synthesis II CY JUL 12-13, 1993 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,IMAGING BRANCH,KIRTLAND AFB,NM 87117. NR 0 TC 8 Z9 8 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1278-3 J9 P SOC PHOTO-OPT INS PY 1993 VL 2029 BP 169 EP 176 DI 10.1117/12.161994 PG 8 WC Astronomy & Astrophysics; Optics SC Astronomy & Astrophysics; Optics GA BZ81L UT WOS:A1993BZ81L00018 ER PT B AU GONGLEWSKI, JD VOELZ, DG DAYTON, DC SCHULZ, TJ AF GONGLEWSKI, JD VOELZ, DG DAYTON, DC SCHULZ, TJ BE Idell, PS TI IMAGING USING 4TH-ORDER CORRELATIONS OF COHERENT FIELDS SO DIGITAL IMAGE RECOVERY AND SYNTHESIS II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Digital Image Recovery and Synthesis II CY JUL 12-13, 1993 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,PHILLIPS LAB,IMAGING TECHNOL BRANCH,KIRTLAND AFB,NM 87117. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1278-3 J9 P SOC PHOTO-OPT INS PY 1993 VL 2029 BP 185 EP 194 DI 10.1117/12.161997 PG 10 WC Astronomy & Astrophysics; Optics SC Astronomy & Astrophysics; Optics GA BZ81L UT WOS:A1993BZ81L00020 ER PT B AU CARRERAS, RA AF CARRERAS, RA BE Idell, PS TI IMAGE-RESTORATION USING NONLINEAR OPTIMIZATION TECHNIQUES WITH A KNOWLEDGE-BASED CONSTRAINT SO DIGITAL IMAGE RECOVERY AND SYNTHESIS II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Digital Image Recovery and Synthesis II CY JUL 12-13, 1993 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,PHILLIPS LAB,LIMI,KIRTLAND AFB,NM 87117. NR 0 TC 4 Z9 4 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1278-3 J9 P SOC PHOTO-OPT INS PY 1993 VL 2029 BP 209 EP 226 DI 10.1117/12.162000 PG 18 WC Astronomy & Astrophysics; Optics SC Astronomy & Astrophysics; Optics GA BZ81L UT WOS:A1993BZ81L00023 ER PT B AU WELSH, BM AF WELSH, BM BE Idell, PS TI SPECKLE IMAGING SIGNAL-TO-NOISE PERFORMANCE AS A FUNCTION OF FRAME INTEGRATION TIME SO DIGITAL IMAGE RECOVERY AND SYNTHESIS II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Digital Image Recovery and Synthesis II CY JUL 12-13, 1993 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1278-3 J9 P SOC PHOTO-OPT INS PY 1993 VL 2029 BP 252 EP 263 DI 10.1117/12.162003 PG 12 WC Astronomy & Astrophysics; Optics SC Astronomy & Astrophysics; Optics GA BZ81L UT WOS:A1993BZ81L00026 ER PT B AU ROGGEMANN, MC AF ROGGEMANN, MC BE Idell, PS TI USE OF WAVE-FRONT SENSOR MEASUREMENTS TO RECONSTRUCT IMAGES IN PARTIALLY COMPENSATED IMAGING-SYSTEMS WITH FINITE BANDWIDTH SO DIGITAL IMAGE RECOVERY AND SYNTHESIS II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Digital Image Recovery and Synthesis II CY JUL 12-13, 1993 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,INST TECHNOL,GRAD SCH ENGN,DEPT ENGN PHYS,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1278-3 J9 P SOC PHOTO-OPT INS PY 1993 VL 2029 BP 299 EP 310 DI 10.1117/12.162008 PG 12 WC Astronomy & Astrophysics; Optics SC Astronomy & Astrophysics; Optics GA BZ81L UT WOS:A1993BZ81L00030 ER PT B AU TROXEL, SE WELSH, BM ROGGEMANN, MC AF TROXEL, SE WELSH, BM ROGGEMANN, MC BE Idell, PS TI ADAPTIVE IMAGING THROUGH FAR-FIELD TURBULENCE SO DIGITAL IMAGE RECOVERY AND SYNTHESIS II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Digital Image Recovery and Synthesis II CY JUL 12-13, 1993 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,DEPT ELECT & COMP ENGN,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1278-3 J9 P SOC PHOTO-OPT INS PY 1993 VL 2029 BP 369 EP 379 DI 10.1117/12.162014 PG 11 WC Astronomy & Astrophysics; Optics SC Astronomy & Astrophysics; Optics GA BZ81L UT WOS:A1993BZ81L00036 ER PT B AU HOPPER, DG AF HOPPER, DG BE Bartlett, CT Cowan, MD TI COCKPIT DISPLAY REQUIREMENTS AND SPECIFICATIONS SO DISPLAY SYSTEMS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conferences on High-Resolution and Large-Screen Displays, and Helmet, Head-up, and Head-Down Displays CY JUN 23-24, 1993 CL MUNICH, GERMANY SP EUROPEAN OPT SOC, SOC PHOTO OPT INSTRUMENTAT ENGINEERS, SOC IMAGING SCI & TECHNOL C1 WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1237-6 J9 P SOC PHOTO-OPT INS PY 1993 VL 1988 BP 64 EP 73 DI 10.1117/12.164726 PG 10 WC Optics; Imaging Science & Photographic Technology SC Optics; Imaging Science & Photographic Technology GA BZ84R UT WOS:A1993BZ84R00008 ER PT B AU STECH, DJ QUAN, R AF STECH, DJ QUAN, R BE Kirk, CL Hughes, PC TI A NONLINEAR DISSIPATIVE CONTROLLER FOR VIBRATION SUPPRESSION OF FLEXIBLE STRUCTURES SO DYNAMICS AND CONTROL OF STRUCTURES IN SPACE II LA English DT Proceedings Paper CT 2nd International Conference on Dynamics and Control of Structures in Space CY SEP 06-10, 1993 CL CRANFIELD INST TECHNOL, CRANFIELD, ENGLAND SP CRANFIELD INST TECHNOL, COLL AERONAUT HO CRANFIELD INST TECHNOL C1 USAF ACAD,AIR FORCE MAT COMMAND,DIV AEROSP SCI,FRANK J SEILER LAB,COLORADO SPRINGS,CO 80840. NR 0 TC 0 Z9 0 U1 0 U2 0 PU COMPUTATIONAL MECHANICS PUBLICATIONS LTD PI SOUTHAMPTON PA ASHURST LODGE, SOUTHAMPTON, HANTS, ENGLAND S04 2AA BN 1-85312-247-5 PY 1993 BP 297 EP 312 PG 16 WC Engineering, Aerospace; Mechanics SC Engineering; Mechanics GA BZ42P UT WOS:A1993BZ42P00016 ER PT B AU QUAN, R AF QUAN, R BE Kirk, CL Hughes, PC TI THE APPLICATION OF PASSIVE VIBRATION ABSORPTION FORMULAS TO SYSTEM IDENTIFIED FLEXIBLE SPACE STRUCTURE MODELS SO DYNAMICS AND CONTROL OF STRUCTURES IN SPACE II LA English DT Proceedings Paper CT 2nd International Conference on Dynamics and Control of Structures in Space CY SEP 06-10, 1993 CL CRANFIELD INST TECHNOL, CRANFIELD, ENGLAND SP CRANFIELD INST TECHNOL, COLL AERONAUT HO CRANFIELD INST TECHNOL C1 USAF ACAD,DIV AEROSP SCI,FRANK J SEILER LAB,COLORADO SPRINGS,CO 80840. NR 0 TC 0 Z9 0 U1 0 U2 0 PU COMPUTATIONAL MECHANICS PUBLICATIONS LTD PI SOUTHAMPTON PA ASHURST LODGE, SOUTHAMPTON, HANTS, ENGLAND S04 2AA BN 1-85312-247-5 PY 1993 BP 441 EP 450 PG 10 WC Engineering, Aerospace; Mechanics SC Engineering; Mechanics GA BZ42P UT WOS:A1993BZ42P00024 ER PT B AU HOUSE, SD HILL, CA AF HOUSE, SD HILL, CA GP AMER CHEM SOC TI STATUS OF THE AIR-FORCE NICKEL-HYDROGEN LOW-EARTH-ORBIT LIFE TEST SO ENERGY ENVIRONMENT ECONOMICS: 28TH INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (IECEC-93), VOL 1: AEROSPACE POWER, CONVERSION TECHNOLOGY, ELECTROCHEMICAL CONVERSION LA English DT Proceedings Paper CT 28th Intersociety Energy Conversion Engineering Conference (IECEC-93) CY AUG 08-13, 1993 CL ATLANTA, GA SP AMER CHEM SOC, AMER INST AERONAUT & ASTRONAUT, AMER SOC MECH ENGINEERS, IEEE, AMER INST CHEM ENGINEERS, AMER NUCL SOC, SOC AUTOMOT ENGINEERS C1 USAF,PHILLIPS LAB,KIRTLAND AFB,NM 87117. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 BN 0-8412-2772-5 PY 1993 BP 113 EP 118 PG 6 WC Engineering, Aerospace; Energy & Fuels; Engineering, Mechanical; Nuclear Science & Technology SC Engineering; Energy & Fuels; Nuclear Science & Technology GA BZ61S UT WOS:A1993BZ61S00019 ER PT B AU HORWATH, J SCHWEICKART, D RHOADS, G AF HORWATH, J SCHWEICKART, D RHOADS, G GP AMER CHEM SOC TI CORONA TESTING FOR 270 VOLT DIRECT-CURRENT AIRCRAFT-COMPONENTS SO ENERGY ENVIRONMENT ECONOMICS: 28TH INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (IECEC-93), VOL 1: AEROSPACE POWER, CONVERSION TECHNOLOGY, ELECTROCHEMICAL CONVERSION LA English DT Proceedings Paper CT 28th Intersociety Energy Conversion Engineering Conference (IECEC-93) CY AUG 08-13, 1993 CL ATLANTA, GA SP AMER CHEM SOC, AMER INST AERONAUT & ASTRONAUT, AMER SOC MECH ENGINEERS, IEEE, AMER INST CHEM ENGINEERS, AMER NUCL SOC, SOC AUTOMOT ENGINEERS C1 WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 BN 0-8412-2772-5 PY 1993 BP 315 EP 319 PG 5 WC Engineering, Aerospace; Energy & Fuels; Engineering, Mechanical; Nuclear Science & Technology SC Engineering; Energy & Fuels; Nuclear Science & Technology GA BZ61S UT WOS:A1993BZ61S00051 ER PT B AU YOUNG, TJ THAYER, KL RAMALINGAM, ML AF YOUNG, TJ THAYER, KL RAMALINGAM, ML GP AMER CHEM SOC TI THERMAL TRANSIENTS DURING STARTUP IN A TFE LEAD WITH GRAPHITE RESERVOIRS SO ENERGY ENVIRONMENT ECONOMICS: 28TH INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (IECEC-93), VOL 1: AEROSPACE POWER, CONVERSION TECHNOLOGY, ELECTROCHEMICAL CONVERSION LA English DT Proceedings Paper CT 28th Intersociety Energy Conversion Engineering Conference (IECEC-93) CY AUG 08-13, 1993 CL ATLANTA, GA SP AMER CHEM SOC, AMER INST AERONAUT & ASTRONAUT, AMER SOC MECH ENGINEERS, IEEE, AMER INST CHEM ENGINEERS, AMER NUCL SOC, SOC AUTOMOT ENGINEERS C1 WRIGHT LAB,POOC,DIV AEROSP POWER,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 BN 0-8412-2772-5 PY 1993 BP 525 EP 530 PG 6 WC Engineering, Aerospace; Energy & Fuels; Engineering, Mechanical; Nuclear Science & Technology SC Engineering; Energy & Fuels; Nuclear Science & Technology GA BZ61S UT WOS:A1993BZ61S00083 ER PT B AU BLEEKER, G MOODY, J KESAREE, M AF BLEEKER, G MOODY, J KESAREE, M GP AMER CHEM SOC TI THE SPACE NUCLEAR THERMAL PROPULSION PROGRAM - PROPULSION FOR THE 21ST-CENTURY SO ENERGY ENVIRONMENT ECONOMICS: 28TH INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (IECEC-93), VOL 1: AEROSPACE POWER, CONVERSION TECHNOLOGY, ELECTROCHEMICAL CONVERSION LA English DT Proceedings Paper CT 28th Intersociety Energy Conversion Engineering Conference (IECEC-93) CY AUG 08-13, 1993 CL ATLANTA, GA SP AMER CHEM SOC, AMER INST AERONAUT & ASTRONAUT, AMER SOC MECH ENGINEERS, IEEE, AMER INST CHEM ENGINEERS, AMER NUCL SOC, SOC AUTOMOT ENGINEERS C1 USAF,SNTP,PHILLIPS LAB,KIRTLAND AFB,NM 87117. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 BN 0-8412-2772-5 PY 1993 BP 587 EP 592 PG 6 WC Engineering, Aerospace; Energy & Fuels; Engineering, Mechanical; Nuclear Science & Technology SC Engineering; Energy & Fuels; Nuclear Science & Technology GA BZ61S UT WOS:A1993BZ61S00093 ER PT B AU HAWTHORNE, LS BOWMAN, WJ AF HAWTHORNE, LS BOWMAN, WJ GP AMER CHEM SOC TI REWET PERFORMANCE OF A RECTANGULAR GROOVE AFTER GRAVITATIONALLY INDUCED DRYOUT SO ENERGY ENVIRONMENT ECONOMICS: 28TH INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (IECEC-93), VOL 1: AEROSPACE POWER, CONVERSION TECHNOLOGY, ELECTROCHEMICAL CONVERSION LA English DT Proceedings Paper CT 28th Intersociety Energy Conversion Engineering Conference (IECEC-93) CY AUG 08-13, 1993 CL ATLANTA, GA SP AMER CHEM SOC, AMER INST AERONAUT & ASTRONAUT, AMER SOC MECH ENGINEERS, IEEE, AMER INST CHEM ENGINEERS, AMER NUCL SOC, SOC AUTOMOT ENGINEERS C1 USAF,INST TECHNOL,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 BN 0-8412-2772-5 PY 1993 BP 763 EP 767 PG 5 WC Engineering, Aerospace; Energy & Fuels; Engineering, Mechanical; Nuclear Science & Technology SC Engineering; Energy & Fuels; Nuclear Science & Technology GA BZ61S UT WOS:A1993BZ61S00122 ER PT B AU KIM, KY HORNERRICHARDSON, K AF KIM, KY HORNERRICHARDSON, K GP AMER CHEM SOC TI CESIUM VAPOR-PRESSURE CONTROL FOR ATI-TFE BY USING INTEGRAL CS COMPOUND RESERVOIRS SO ENERGY ENVIRONMENT ECONOMICS: 28TH INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (IECEC-93), VOL 1: AEROSPACE POWER, CONVERSION TECHNOLOGY, ELECTROCHEMICAL CONVERSION LA English DT Proceedings Paper CT 28th Intersociety Energy Conversion Engineering Conference (IECEC-93) CY AUG 08-13, 1993 CL ATLANTA, GA SP AMER CHEM SOC, AMER INST AERONAUT & ASTRONAUT, AMER SOC MECH ENGINEERS, IEEE, AMER INST CHEM ENGINEERS, AMER NUCL SOC, SOC AUTOMOT ENGINEERS C1 WRIGHT LAB,POOC,DIV AEROSP POWER,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 BN 0-8412-2772-5 PY 1993 BP 1051 EP 1055 PG 5 WC Engineering, Aerospace; Energy & Fuels; Engineering, Mechanical; Nuclear Science & Technology SC Engineering; Energy & Fuels; Nuclear Science & Technology GA BZ61S UT WOS:A1993BZ61S00165 ER PT B AU SURIANO, MA AF SURIANO, MA GP AMER CHEM SOC TI THE TOPAZ-II PROGRAM - INITIAL US DEMONSTRATION TEST-RESULTS ON THE TOPAZ-II THERMIONIC SPACE NUCLEAR-POWER SYSTEM SO ENERGY ENVIRONMENT ECONOMICS: 28TH INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE PROCEEDINGS (IECEC-93), VOL 2: ENVIRONMENTAL IMPACT, ENERGY SYSTEMS, NEW TECHNOLOGY FOR ENERGY UTILIZATION, POLICY ISSUES, RENEWABLE ENERGY SOURCES, STIRLING CYCLES LA English DT Proceedings Paper CT 28th Intersociety Energy Conversion Engineering Conference (IECEC-93) CY AUG 08-13, 1993 CL ATLANTA, GA SP AMER CHEM SOC, AMER INST AERONAUT & ASTRONAUT, AMER SOC MECH ENGINEERS, IEEE, AMER INST CHEM ENGINEERS, AMER NUCL SOC, SOC AUTOMOT ENGINEERS C1 USAF,PHILLIPS LAB,NEW MEXICO ENGN RES INST,ALBUQUERQUE,NM 87106. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 BN 0-8412-2772-5 PY 1993 BP 855 EP 861 PG 7 WC Engineering, Aerospace; Energy & Fuels; Engineering, Mechanical; Environmental Sciences SC Engineering; Energy & Fuels; Environmental Sciences & Ecology GA BZ61T UT WOS:A1993BZ61T00136 ER PT J AU BOWLES, DE MATHIS, ML HAMILTON, SW AF BOWLES, DE MATHIS, ML HAMILTON, SW TI A NEW SPECIES OF POLYCENTROPUS (TRICHOPTERA, POLYCENTROPODIDAE) FROM ARKANSAS SO ENTOMOLOGICAL NEWS LA English DT Article AB Polycentropus stephani, a new species from Arkansas, is described and illustrated. This species is a member of the confusus species-group and is most closely related to P. chelatus, P. floridensis and P. neiswanderi, but differs primarily in having a prominent spur on the basoventral swelling of the phallus. Known only from the interior highlands, P., stephani may be endemic to that region. RP BOWLES, DE (reprint author), USAF,ARMSTRONG LAB,OCCUPAT & ENVIRONM MED,BROOKS AFB,TX 78235, USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMER ENTOMOL SOC PI PHILADELPHIA PA 1900 BENJ FRANKLIN PARKWAY, PHILADELPHIA, PA 19103-1195 SN 0013-872X J9 ENTOMOL NEWS JI Entomol. News PD JAN-FEB PY 1993 VL 104 IS 1 BP 31 EP 34 PG 4 WC Entomology SC Entomology GA KH912 UT WOS:A1993KH91200003 ER PT J AU JAUCHEM, JR AF JAUCHEM, JR TI POTENTIAL CONFOUNDERS IN EPIDEMIOLOGIC STUDIES OF ELECTRIC AND MAGNETIC-FIELDS AND CHILDHOOD LEUKEMIA SO ENVIRONMENTAL CARCINOGENESIS & ECOTOXICOLOGY REVIEWS-PART C OF JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH LA English DT Review ID ACUTE NONLYMPHOCYTIC LEUKEMIA; ACUTE LYMPHOBLASTIC-LEUKEMIA; LIFE-STYLE CHARACTERISTICS; FEMALE CD RAT; ELECTROMAGNETIC-FIELDS; NONDIFFERENTIAL MISCLASSIFICATION; HEMATOLOGICAL MALIGNANCIES; TRANSMISSION EQUIPMENT; OCCUPATIONAL EXPOSURES; METHODOLOGICAL ISSUES C1 UNIV TEXAS,HLTH SCI CTR,SCH PUBL HLTH,PUBL HLTH PROGRAM,HOUSTON,TX 77225. RP JAUCHEM, JR (reprint author), USAF,ARMSTRONG LAB,OCCUPAT & ENVIRONM HLTH DIRECTORATE,BROOKS AFB,TX 78235, USA. NR 110 TC 1 Z9 1 U1 0 U2 0 PU MARCEL DEKKER INC PI NEW YORK PA 270 MADISON AVE, NEW YORK, NY 10016 SN 1059-0501 J9 ENVIRON CARCIN ECO R JI Environ. Carcinog. Ecotoxical. Rev.-Pt. C J. Env. Sci. Health PY 1993 VL 11 IS 2 BP 163 EP 183 PG 21 WC Oncology; Environmental Sciences; Toxicology SC Oncology; Environmental Sciences & Ecology; Toxicology GA ML358 UT WOS:A1993ML35800002 ER PT J AU THURMAN, RA AF THURMAN, RA TI INSTRUCTIONAL SIMULATION FROM A COGNITIVE-PSYCHOLOGY VIEWPOINT SO ETR&D-EDUCATIONAL TECHNOLOGY RESEARCH AND DEVELOPMENT LA English DT Article ID SUSTAINED ATTENTION; PERFORMANCE; DESIGN; MODELS; MEMORY AB The advent of the microcomputer has resulted in an increased interest in the design and use of instructional simulations. This type of simulation has the potential to enhance the transfer of learning by teaching complex mental and procedural tasks in an environment that approximates a real-world setting (Reigeluth & Schwartz, 1989). However, the microcomputer-based instructional simulations being produced today are often poorly designed from a psychological standpoint, and the learning environment they provide is ineffective at best. Information concerning how to specify and implement appropriate instructional designs for this type of learning medium is sparse (Akssi, 1988). This article presents implications gleaned from cognitive psychology which are important for the design of microcomputer-based instructional simulations. RP THURMAN, RA (reprint author), USAF,ARMSTRONG LAB,AIRCRAFT TRAINING RES DIV,MESA,AZ, USA. NR 86 TC 21 Z9 21 U1 0 U2 0 PU ASSOC EDUC COMMUNICATIONS & TECHNOLOGY PI WASHINGTON PA 1025 VERMONT AVE NW, SUITE 820, WASHINGTON, DC 20005 SN 1042-1629 J9 ETR&D-EDUC TECH RES JI ETR&D-Educ. Tech. Res. Dev. PY 1993 VL 41 IS 4 BP 75 EP 89 DI 10.1007/BF02297513 PG 15 WC Education & Educational Research SC Education & Educational Research GA MT492 UT WOS:A1993MT49200005 ER PT S AU KASPI, R EVANS, KR AF KASPI, R EVANS, KR BE Atwater, HA Chason, E Grabow, MH Lagally, MG TI DESORPTION-KINETICS OF INDIUM AT THE INAS/GAAS(001) HETEROINTERFACE SO EVOLUTION OF SURFACE AND THIN FILM MICROSTRUCTURE SE MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS LA English DT Proceedings Paper CT Symposium on Evolution of Surface and Thin Film Microstructure, at the 1992 Fall Meeting of the Materials-Research-Society CY NOV 30-DEC 04, 1992 CL BOSTON, MA SP MAT RES SOC, ASTEX INC, BLAKE IND, THERMIONICS INC C1 WRIGHT LAB,SOLID STATE ELECTR DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 5 Z9 5 U1 0 U2 0 PU MATERIALS RESEARCH SOC PI PITTSBURGH PA 9800 MCKNIGHT RD, SUITE 327, PITTSBURGH, PA 15237 SN 0272-9172 BN 1-558-99175-1 J9 MATER RES SOC SYMP P PY 1993 VL 280 BP 73 EP 78 PG 6 WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics, Applied SC Chemistry; Materials Science; Physics GA BZ48T UT WOS:A1993BZ48T00010 ER PT B AU NICHOLAS, T RUSS, S SCHEHL, N CHENEY, A AF NICHOLAS, T RUSS, S SCHEHL, N CHENEY, A BE Bailon, JP Dickson, JI TI FREQUENCY AND STRESS RATIO EFFECTS ON FATIGUE OF UNIDIRECTIONAL SCS/6/TI-24AL-11NB COMPOSITE AT 650-DEGREES-C SO FATIGUE 93, VOLS 1-3 SE INTERNATIONAL FATIGUE SERIES - IFS LA English DT Proceedings Paper CT 5th International Conference on Fatigue and Fatigue Thresholds CY MAY 03-07, 1993 CL MONTREAL, CANADA SP ECOLE POLYTECH MONTREAL, CANADIAN COMM STRENGTH & FRACTURE MAT, CANADIAN INST MIN & MET, MET SOC, ASM INT, CANADIAN COUNCIL C1 WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ENGINEERING MATERIALS ADVISORY SERVICES LTD PI WARLEY PA 339 HALESOWEN RD, CRADLEY HEATH, WARLEY, W MIDLANDS, ENGLAND B64 6PH BN 0-947817-60-3 J9 INT FATIG SER PY 1993 BP 995 EP 1000 PG 6 WC Engineering, Mechanical; Materials Science, Multidisciplinary SC Engineering; Materials Science GA BB62X UT WOS:A1993BB62X00143 ER PT B AU JHIRA, JR LARSEN, JM AF JHIRA, JR LARSEN, JM BE Bailon, JP Dickson, JI TI CRACK BRIDGING BEHAVIOR IN UNIDIRECTIONAL SCS/6/TI-24AL-11NB COMPOSITE SO FATIGUE 93, VOLS 1-3 SE INTERNATIONAL FATIGUE SERIES - IFS LA English DT Proceedings Paper CT 5th International Conference on Fatigue and Fatigue Thresholds CY MAY 03-07, 1993 CL MONTREAL, CANADA SP ECOLE POLYTECH MONTREAL, CANADIAN COMM STRENGTH & FRACTURE MAT, CANADIAN INST MIN & MET, MET SOC, ASM INT, CANADIAN COUNCIL C1 WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ENGINEERING MATERIALS ADVISORY SERVICES LTD PI WARLEY PA 339 HALESOWEN RD, CRADLEY HEATH, WARLEY, W MIDLANDS, ENGLAND B64 6PH BN 0-947817-60-3 J9 INT FATIG SER PY 1993 BP 1085 EP 1090 PG 6 WC Engineering, Mechanical; Materials Science, Multidisciplinary SC Engineering; Materials Science GA BB62X UT WOS:A1993BB62X00156 ER PT B AU MOSCHELLE, WR MALL, S AF MOSCHELLE, WR MALL, S BE Bailon, JP Dickson, JI TI FATIGUE BEHAVIOR OF A UNIDIRECTIONAL CERAMIC COMPOSITE WITH A CIRCULAR HOLE SO FATIGUE 93, VOLS 1-3 SE INTERNATIONAL FATIGUE SERIES - IFS LA English DT Proceedings Paper CT 5th International Conference on Fatigue and Fatigue Thresholds CY MAY 03-07, 1993 CL MONTREAL, CANADA SP ECOLE POLYTECH MONTREAL, CANADIAN COMM STRENGTH & FRACTURE MAT, CANADIAN INST MIN & MET, MET SOC, ASM INT, CANADIAN COUNCIL C1 AERO PROPULS DIRECTORATE,WRIGHT PATTERSON AFB,OH. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ENGINEERING MATERIALS ADVISORY SERVICES LTD PI WARLEY PA 339 HALESOWEN RD, CRADLEY HEATH, WARLEY, W MIDLANDS, ENGLAND B64 6PH BN 0-947817-60-3 J9 INT FATIG SER PY 1993 BP 1301 EP 1306 PG 6 WC Engineering, Mechanical; Materials Science, Multidisciplinary SC Engineering; Materials Science GA BB62X UT WOS:A1993BB62X00188 ER PT B AU SANTOS, E AF SANTOS, E BE Koutsougeras, C TI A FAST HILL-CLIMBING APPROACH WITHOUT AN ENERGY FUNCTION FOR PROBABILISTIC REASONING SO FIFTH INTERNATIONAL CONFERENCE ON TOOLS WITH ARTIFICIAL INTELLIGENCE, TAI '93, PROCEEDINGS LA English DT Proceedings Paper CT 5th International Conference on Tools with Artificial Intelligence (TAI 93) CY NOV 08-11, 1993 CL BOSTON, MA SP IEEE, COMP SOC, AAAI SOC, BINGHAMTON UNIV, AAAI LAB, UNIV ILLINOIS CHICAGO, UNIV TORONTO CANADA C1 USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 2 Z9 2 U1 0 U2 0 PU I E E E, COMPUTER SOC PRESS PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, LOS ALAMITOS, CA 90720 BN 0-8186-4200-9 PY 1993 BP 170 EP 179 DI 10.1109/TAI.1993.633953 PG 10 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BZ56P UT WOS:A1993BZ56P00024 ER PT B AU BAIRD, LC KLOPF, AH AF BAIRD, LC KLOPF, AH BE Meyer, JA Roitblat, HL Wilson, SW TI EXTENSIONS OF THE ASSOCIATIVE CONTROL PROCESS (ACP) NETWORK - HIERARCHIES AND PROVABLE OPTIMALITY SO FROM ANIMALS TO ANIMATS 2: PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON SIMULATION OF ADAPTIVE BEHAVIOR SE COMPLEX ADAPTIVE SYSTEMS LA English DT Proceedings Paper CT 2nd International Conference on Simulation of Adaptive Behavior: From Animals to Animats 2 (SAB92) CY DEC 07-11, 1992 CL HONOLULU, HI SP USAF, OFF SCI RES, DEF ADV RES PROJECTS AGCY, MINIST EDUC NATL & CULTURE, USN, OFF NAVAL RES C1 WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU M I T PRESS PI CAMBRIDGE PA 55 HAYWARD ST, CAMBRIDGE, MA 02142 BN 0-262-63149-0 J9 COM ADAP SY PY 1993 BP 163 EP 171 PG 9 WC Automation & Control Systems; Behavioral Sciences; Computer Science, Artificial Intelligence; Computer Science, Cybernetics; Neurosciences; Psychology, Experimental SC Automation & Control Systems; Behavioral Sciences; Computer Science; Neurosciences & Neurology; Psychology GA BA26G UT WOS:A1993BA26G00019 ER PT B AU KLOPF, AH MORGAN, JS WEAVER, SE AF KLOPF, AH MORGAN, JS WEAVER, SE BE Meyer, JA Roitblat, HL Wilson, SW TI MODELING NERVOUS-SYSTEM FUNCTION WITH A HIERARCHICAL NETWORK OF CONTROL-SYSTEMS THAT LEARN SO FROM ANIMALS TO ANIMATS 2: PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON SIMULATION OF ADAPTIVE BEHAVIOR SE COMPLEX ADAPTIVE SYSTEMS LA English DT Proceedings Paper CT 2nd International Conference on Simulation of Adaptive Behavior: From Animals to Animats 2 (SAB92) CY DEC 07-11, 1992 CL HONOLULU, HI SP USAF, OFF SCI RES, DEF ADV RES PROJECTS AGCY, MINIST EDUC NATL & CULTURE, USN, OFF NAVAL RES C1 WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU M I T PRESS PI CAMBRIDGE PA 55 HAYWARD ST, CAMBRIDGE, MA 02142 BN 0-262-63149-0 J9 COM ADAP SY PY 1993 BP 254 EP 261 PG 8 WC Automation & Control Systems; Behavioral Sciences; Computer Science, Artificial Intelligence; Computer Science, Cybernetics; Neurosciences; Psychology, Experimental SC Automation & Control Systems; Behavioral Sciences; Computer Science; Neurosciences & Neurology; Psychology GA BA26G UT WOS:A1993BA26G00030 ER PT S AU DICKERSON, MC JOHNSTON, R AF DICKERSON, MC JOHNSTON, R BE Grayson, LP TI TEACHING ENGINEERING PROJECT-MANAGEMENT - A CASE-STUDY - THE USAF TEST PILOT SCHOOL SO FRONTIERS IN EDUCATION - PROCEEDINGS, 23RD ANNUAL CONFERENCE: ENGINEERING EDUCATION: RENEWING AMERICAS TECHNOLOGY SE PROCEEDINGS-FRONTIERS IN EDUCATION CONFERENCE LA English DT Meeting Abstract CT 23rd Annual Frontiers in Education Conference: Engineering Education - Renewing Americas Technology CY NOV 06-09, 1993 CL WASHINGTON, DC SP IEEE, EDUC SOC, AMER SOC ENGN EDUC, EDUC RES & METHODS DIV C1 USAF,SCH TEST PILOT,EDWARDS AFB,CA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 0190-5848 BN 0-7803-1482-4 J9 PROC FRONT EDUC CONF PY 1993 BP 819 EP 821 DI 10.1109/FIE.1993.405405 PG 3 WC Education, Scientific Disciplines; Engineering, Multidisciplinary SC Education & Educational Research; Engineering GA BZ72A UT WOS:A1993BZ72A00169 ER PT J AU KUNDROTAS, L CHARLESWORTH, E AF KUNDROTAS, L CHARLESWORTH, E TI LOCALIZED FLARE REACTION TO INTRAVENOUS DRUG ADMINISTRATION FOR CONSCIOUS SEDATION DURING ENDOSCOPY SO GASTROINTESTINAL ENDOSCOPY LA English DT Letter C1 WILFORD HALL USAF MED CTR,DEPT MED,DIV ALLERGY,LACKLAND AFB,TX 78236. RP KUNDROTAS, L (reprint author), WILFORD HALL USAF MED CTR,DEPT MED,DIV GASTROENTEROL,LACKLAND AFB,TX 78236, USA. NR 4 TC 1 Z9 1 U1 0 U2 0 PU MOSBY-YEAR BOOK INC PI ST LOUIS PA 11830 WESTLINE INDUSTRIAL DR, ST LOUIS, MO 63146-3318 SN 0016-5107 J9 GASTROINTEST ENDOSC JI Gastrointest. Endosc. PD JAN-FEB PY 1993 VL 39 IS 1 BP 109 EP 110 DI 10.1016/S0016-5107(93)70037-1 PG 2 WC Gastroenterology & Hepatology SC Gastroenterology & Hepatology GA KP814 UT WOS:A1993KP81400037 PM 8454136 ER PT B AU GIESKEN, JM AF GIESKEN, JM GP AMER CONGRESS SURVEYING & MAPPING TI THE SHIFT TOWARD DIGITAL GEOGRAPHIC INFORMATION FOR AIR COMBAT OPERATIONS SO GIS/LIS '93 PROCEEDINGS, VOL 1 LA English DT Proceedings Paper CT GIS/LIS '93 Annual Conference & Exposition CY NOV 02-04, 1993 CL MINNEAPOLIS, MN SP AMER CONGRESS SURVEYING & MAPPING, AMER SOC PHOTOGRAMMETRY & REMOTE SENSING, AM FM INT, ASSOC AMER GEOGRAPHERS, URBAN & REG INFORMAT SYST ASSOC C1 USAF,AIR COMBAT COMMAND TARGET MAT BRANCH,LANGLEY AFB,VA 23665. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER SOC PHOTOGRAMMETRY & REMOTE SENSING PI BETHESDA PA 5410 GROSVENOR LAND, SUITE 210, BETHESDA, MD 20814-2160 BN 0-944426-99-9 PY 1993 BP 246 EP 252 PG 7 WC Geography; Information Science & Library Science; Urban Studies SC Geography; Information Science & Library Science; Urban Studies GA BZ99B UT WOS:A1993BZ99B00032 ER PT J AU BROXSON, EH HINE, TK MOOPENN, WF AF BROXSON, EH HINE, TK MOOPENN, WF TI HB MUSKEGON [BETA-83(EF7)GLY-]ARG] - A NEW VARIANT FOUND IN A FAMILY FROM THE UNITED-STATES SO HEMOGLOBIN LA English DT Note ID HEMOGLOBIN C1 CTR DIS CONTROL,ATLANTA,GA 30333. RP BROXSON, EH (reprint author), USAF,MED CTR,WRIGHT PATTERSON AFB,OH 45433, USA. NR 6 TC 5 Z9 5 U1 0 U2 0 PU MARCEL DEKKER INC PI NEW YORK PA 270 MADISON AVE, NEW YORK, NY 10016 SN 0363-0269 J9 HEMOGLOBIN JI Hemoglobin PY 1993 VL 17 IS 1 BP 85 EP 86 DI 10.3109/03630269308998889 PG 2 WC Biochemistry & Molecular Biology; Hematology SC Biochemistry & Molecular Biology; Hematology GA KK997 UT WOS:A1993KK99700010 PM 8454474 ER PT S AU ADAMS, WW PACHTER, R HAALAND, PD HORN, TR WIERSCHKE, SG CRANE, RL AF ADAMS, WW PACHTER, R HAALAND, PD HORN, TR WIERSCHKE, SG CRANE, RL BE Eby, RK Evers, RC Meador, MA Wilson, D TI ULTIMATE PROPERTIES OF POLYMER-CHAINS SO HIGH PERFORMANCE POLYMERS AND POLYMER MATRIX COMPOSITES SE MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS LA English DT Proceedings Paper CT Symposium on High Performance Polymers and Polymer Matrix Composites, at the 1993 Spring Meeting of the Materials-Research-Society CY APR 13-16, 1993 CL SAN FRANCISCO, CA SP MAT RES SOC C1 WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 2 Z9 2 U1 0 U2 0 PU MATERIALS RESEARCH SOC PI PITTSBURGH PA 9800 MCKNIGHT RD, SUITE 327, PITTSBURGH, PA 15237 SN 0272-9172 BN 1-55899-201-4 J9 MATER RES SOC SYMP P PY 1993 VL 305 BP 39 EP 47 DI 10.1557/PROC-305-39 PG 9 WC Materials Science, Composites; Polymer Science SC Materials Science; Polymer Science GA BA12Y UT WOS:A1993BA12Y00004 ER PT S AU REISING, JM EMERSON, TJ MUNNS, RC AF REISING, JM EMERSON, TJ MUNNS, RC BE Smith, MJ Salvendy, G TI AUTOMATION IN MILITARY AIRCRAFT SO HUMAN-COMPUTER INTERACTION, VOL 1: APPLICATIONS AND CASE STUDIES SE ADVANCES IN HUMAN FACTORS / ERGONOMICS LA English DT Proceedings Paper CT 5th International Conference on Human-Computer Interaction (HCI International 93) CY AUG 08-13, 1993 CL ORLANDO, FL SP AT&T, FUJI ELECT CO, JGC CORP, NEC CORP, PURDUE UNIV, UNIV CENT FLORIDA, UNIV WISCONSIN MADISON, ACM SIGCAPH, CHINESE ACAD SCI, CHINESE INST IND ENGINEERS, EEC, EUROPEAN STRATEG PROGRAMME RES & DEV INFORM TECHNOL, FINNISH INST OCCUPAT HLTH, HUMAN FACTORS SOC, IEEE, INST MANAGEMENT SERV, INST IND ENGINEERS, INTELLIGENT MFG SYST CTR, INT ERGON ASSOC, INT ROBOT & FACTORY AUTOMAT CTR, JAPAN ERGON RES SOC, JAPAN ASSOC MED INFORMAT, JAPAN INST OFF AUTOMAT, JAPAN MANAGEMENT ASSOC, JAPAN SOC HLTH SCI, NIOSH, NATL INST IND HLTH JAPAN, SOC INSTRUMENT & CONTROL ENGINEERS JAPAN, SOFTWARE PSYCHOL SOC, SWEDISH CROSS DISCIPLINARY SOC HUMAN COMP INTERACT RP REISING, JM (reprint author), WRIGHT LAB,WRIGHT PATTERSON AFB,OH, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE PUBL B V PI AMSTERDAM PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-2647 BN 0-444-89540-X J9 ADV HUM FACT ERGON PY 1993 VL 19 BP 283 EP 288 PN A PG 6 WC Computer Science, Cybernetics; Ergonomics SC Computer Science; Engineering GA BA62K UT WOS:A1993BA62K00049 ER PT S AU HOBBS, BA STYTZ, MR AF HOBBS, BA STYTZ, MR BE Salvendy, G Smith, MJ TI A USER-INTERFACE TO A TRUE 3-D DISPLAY DEVICE SO HUMAN-COMPUTER INTERACTION, VOL 2: SOFTWARE AND HARDWARE INTERFACES SE ADVANCES IN HUMAN FACTORS / ERGONOMICS LA English DT Proceedings Paper CT 5th International Conference on Human-Computer Interaction (HCI International 93) CY AUG 08-13, 1993 CL ORLANDO, FL SP AT&T, FUJI ELECT CO, JGC CORP, NEC CORP, PURDUE UNIV, UNIV CENT FLORIDA, UNIV WISCONSIN MADISON, ACM SIGCAPH, CHINESE ACAD SCI, CHINESE INST IND ENGINEERS, EEC, EUROPEAN STRATEG PROGRAMME RES & DEV INFORM TECHNOL, FINNISH INST OCCUPAT HLTH, HUMAN FACTORS SOC, IEEE, INST MANAGEMENT SERV, INST IND ENGINEERS, INTELLIGENT MFG SYST CTR, INT ERGON ASSOC, INT ROBOT & FACTORY AUTOMAT CTR, JAPAN ERGON RES SOC, JAPAN ASSOC MED INFORMAT, JAPAN INST OFF AUTOMAT, JAPAN MANAGEMENT ASSOC, JAPAN SOC HLTH SCI, NIOSH, NATL INST IND HLTH JAPAN, SOC INSTRUMENT & CONTROL ENGINEERS JAPAN, SOFTWARE PSYCHOL SOC, SWEDISH CROSS DISCIPLINARY SOC HUMAN COMP INTERACT RP HOBBS, BA (reprint author), USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,WRIGHT PATTERSON AFB,OH 45433, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE PUBL B V PI AMSTERDAM PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-2647 BN 0-444-89540-X J9 ADV HUM FACT ERGON PY 1993 VL 19 BP 579 EP 584 PN B PG 6 WC Computer Science, Cybernetics; Computer Science, Hardware & Architecture; Computer Science, Software Engineering; Ergonomics SC Computer Science; Engineering GA BA62L UT WOS:A1993BA62L00098 ER PT J AU GOMEZ, RA MENCHACA, EM WARD, WW FREEMAN, TM AF GOMEZ, RA MENCHACA, EM WARD, WW FREEMAN, TM TI STRATEGIES OF ANTIBODY CHARACTERIZATION SO HUMAN IMMUNOLOGY LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,DEPT PATHOL,TRANSPLANT IMMUNOL SECT,IMMUNOL BRANCH,LACKLAND AFB,TX 78236. WILFORD HALL USAF MED CTR,DEPT MED,TRANSPLANT IMMUNOL SECT,IMMUNOL BRANCH,LACKLAND AFB,TX 78236. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 0198-8859 J9 HUM IMMUNOL JI Hum. Immunol. PY 1993 VL 37 SU 1 BP 78 EP 78 PG 1 WC Immunology SC Immunology GA LW989 UT WOS:A1993LW98900144 ER PT J AU MENCHACA, EM GOMEZ, RA WARD, WW FREEMAN, TM AF MENCHACA, EM GOMEZ, RA WARD, WW FREEMAN, TM TI SIGNIFICANCE OF A B-CELL CROSS-MATCH OVER A 6-ANTIGEN MATCH SO HUMAN IMMUNOLOGY LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,DEPT PATHOL,TRANSPLANT IMMUNOL SECT,IMMUNOL BRANCH,LACKLAND AFB,TX 78236. WILFORD HALL USAF MED CTR,DEPT MED,TRANSPLANT IMMUNOL SECT,IMMUNOL BRANCH,LACKLAND AFB,TX 78236. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 0198-8859 J9 HUM IMMUNOL JI Hum. Immunol. PY 1993 VL 37 SU 1 BP 78 EP 78 PG 1 WC Immunology SC Immunology GA LW989 UT WOS:A1993LW98900145 ER PT B AU BAYRAKTAROGLU, B FITCH, R BARRETTE, J SCHERER, R KEHIAS, L HUANG, CI AF BAYRAKTAROGLU, B FITCH, R BARRETTE, J SCHERER, R KEHIAS, L HUANG, CI GP IEEE TI DESIGN AND FABRICATION OF THERMALLY-STABLE ALGAAS/GAAS MICROWAVE-POWER HBTS SO IEEE/CORNELL CONFERENCE ON ADVANCED CONCEPTS IN HIGH SPEED SEMICONDUCTOR DEVICES AND CIRCUITS - PROCEEDINGS LA English DT Proceedings Paper CT IEEE/Cornell Conference on Advanced Concepts in High Speed Semiconductor Devices and Circuits CY AUG 02-04, 1993 CL CORNELL UNIV, ITHACA, NY SP IEEE, ELECTRON DEVICES SOC, USA, RES OFF, IEEE, MICROWAVE THEORY & TECH SOC, CORNELL UNIV HO CORNELL UNIV C1 WRIGHT LAB,SOLID STATE ELECTR DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 2 Z9 2 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-0894-8 PY 1993 BP 83 EP 92 PG 10 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA BZ85C UT WOS:A1993BZ85C00010 ER PT B AU LIOU, LL BAYRAKTAROGLU, B HUANG, CI AF LIOU, LL BAYRAKTAROGLU, B HUANG, CI GP IEEE TI THERMAL RUNAWAY ANALYSIS OF HIGH-POWER ALGAAS/GAAS HETEROJUNCTION BIPOLAR-TRANSISTORS SO IEEE/CORNELL CONFERENCE ON ADVANCED CONCEPTS IN HIGH SPEED SEMICONDUCTOR DEVICES AND CIRCUITS - PROCEEDINGS LA English DT Proceedings Paper CT IEEE/Cornell Conference on Advanced Concepts in High Speed Semiconductor Devices and Circuits CY AUG 02-04, 1993 CL CORNELL UNIV, ITHACA, NY SP IEEE, ELECTRON DEVICES SOC, USA, RES OFF, IEEE, MICROWAVE THEORY & TECH SOC, CORNELL UNIV HO CORNELL UNIV C1 WRIGHT LAB,SOLID STATE ELECTR DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 1 Z9 1 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-0894-8 PY 1993 BP 468 EP 477 PG 10 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA BZ85C UT WOS:A1993BZ85C00054 ER PT J AU JAHNS, TM MALDONADO, MA AF JAHNS, TM MALDONADO, MA TI A NEW RESONANT LINK AIRCRAFT POWER GENERATING-SYSTEM SO IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS LA English DT Article ID MOS-CONTROLLED THYRISTORS AB A new 400 Hz aircraft power generating system is introduced which has been designed to achieve significant improvements in power density and reliability compared with conventional systems now in use. Design targets for this exploratory development program include system (generator-plus-converter) power density of 1 kVA/lb and mean-time-between-failure (MTBF) of 5000 IL At the heart of the new variable-speed constant-frequency (VSCF) configuration is a high-frequency resonant link inverter designed so that all inverter switching occurs under zero-voltage conditions. Advantages include minimization of switching losses and significant reductions in power device switching stresses and electromagnetic interference (EMI) generation. Inverter losses are further reduced by using metal-oxide-semiconductor (MOS)-controlled thyristors (MCTs) as the power switches in order to take advantage of the low forward voltage drop of the MCT. A 60 kVA breadboard version of the new generating system has been constructed, and test results are presented which confirm its key performance characteristics. C1 WRIGHT LAB,AERO PROPULS LAB,HIGH RELIABIL GENERATOR PROGRAM,WRIGHT PATTERSON AFB,OH 45433. WRIGHT LAB,ADV SEMICOND POWER SWITCH PROGRAM,WRIGHT PATTERSON AFB,OH 45433. RP JAHNS, TM (reprint author), GE,CORP RES & DEV,POB 8,RM EP-101,SCHENECTADY,NY 12301, USA. NR 14 TC 6 Z9 6 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9251 J9 IEEE T AERO ELEC SYS JI IEEE Trans. Aerosp. Electron. Syst. PD JAN PY 1993 VL 29 IS 1 BP 206 EP 214 DI 10.1109/7.249126 PG 9 WC Engineering, Aerospace; Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA KH673 UT WOS:A1993KH67300019 ER PT J AU LIOU, LL EBEL, JL HUANG, CI AF LIOU, LL EBEL, JL HUANG, CI TI THERMAL EFFECTS ON THE CHARACTERISTICS OF ALGAAS/GAAS HETEROJUNCTION BIPOLAR-TRANSISTORS USING 2-DIMENSIONAL NUMERICAL-SIMULATION SO IEEE TRANSACTIONS ON ELECTRON DEVICES LA English DT Article ID CONDUCTIVITY; RESISTANCE AB Simulations incorporating the spatial distributions of the energy band and temperature have been used to study AlGaAs/GaAs heterojunction bipolar transistor characteristics. The coupled heat transfer and conventional device carrier transport equations were solved numerically in two dimensions using both the voltage and current boundary conditions applied on the base contact. An equivalent thermal resistance model was used to establish the temperature boundary condition between the electrically active device and the relatively large thermally active semi-insulating substrate. The negative differential resistance and the reduction of the base-emitter voltage for a constant base current in the active region are caused by the thermal effects. The differential current gain and cutoff frequency are decreased when the transistor is operated at high power levels. The temperature distribution of the transistor operated in the active region shows a maximum temperature occurring at the collector region right beneath the emitter mesa. When the transistor operated in the saturation region, the emitter contact region may be at a slightly lower temperature than the heat sink temperature. This thermoelectric cooling effect reults from the utilization of the thermodynamically compatible current and energy flow formulations in which the energy band discontinuities are part of the thermoelectric power. RP LIOU, LL (reprint author), SOLID STATE ELECTR DIRECTORATE,WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433, USA. NR 23 TC 36 Z9 37 U1 1 U2 5 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9383 J9 IEEE T ELECTRON DEV JI IEEE Trans. Electron Devices PD JAN PY 1993 VL 40 IS 1 BP 35 EP 43 DI 10.1109/16.249421 PG 9 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA KC144 UT WOS:A1993KC14400006 ER PT J AU BROWN, JL JAMISON, KA JOHNSON, NE ROLADER, GE SCANLON, JJ COUTEE, PW AF BROWN, JL JAMISON, KA JOHNSON, NE ROLADER, GE SCANLON, JJ COUTEE, PW TI EARTH-TO-ORBIT RAILGUN LAUNCHER SO IEEE TRANSACTIONS ON MAGNETICS LA English DT Article; Proceedings Paper CT 6TH SYMP ON ELECTROMAGNETIC LAUNCHER TECHNOLOGY CY 1992 CL UNIV TEXAS AUSTIN, INST ADV TECHNOL, AUSTIN, TX HO UNIV TEXAS AUSTIN, INST ADV TECHNOL AB This paper provides an overview of a comprehensive study which examined the feasibility of launching relatively small payloads into orbit using electromagnetic launcher technology. The specific question addressed by the study was ''Should serious consideration be given to hypervelocity gun launch to space as an alternative to conventional rocket powered launch vehicles and, if so, why?'' An overview of the concept developed is provided along with discussion of the major subsystems. C1 USAF,WRIGHT LAB ARMAMENT DIRECTORATE,EGLIN AFB,FL 32542. RP BROWN, JL (reprint author), SCI APPLICAT INT CORP,SHALIMAR,FL 32579, USA. NR 6 TC 3 Z9 3 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9464 J9 IEEE T MAGN JI IEEE Trans. Magn. PD JAN PY 1993 VL 29 IS 1 BP 373 EP 378 DI 10.1109/20.195603 PN 2 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA KN287 UT WOS:A1993KN28700010 ER PT J AU CORNETTE, JB HEYSE, MW BROWN, JL AF CORNETTE, JB HEYSE, MW BROWN, JL TI AN INVESTIGATION OF ELECTROMAGNETIC LAUNCH REPEATABILITY SO IEEE TRANSACTIONS ON MAGNETICS LA English DT Article; Proceedings Paper CT 6TH SYMP ON ELECTROMAGNETIC LAUNCHER TECHNOLOGY CY 1992 CL UNIV TEXAS AUSTIN, INST ADV TECHNOL, AUSTIN, TX HO UNIV TEXAS AUSTIN, INST ADV TECHNOL AB Electromagnetic launcher (EML) performance repeatability has been identified as a potential development issue for several years. Investigation of this issue has been difficult since an EML that is powered on a relatively continuous basis to provide long duration operation has not been available. A battery charged capacitor power system has enabled long duration, six to seven seconds, EML experiments. This paper provides a summary of an experiment to investigate EML launch-to-launch performance consistency. A series of 8 ten shot bursts each separated by 15 to 30 minutes was performed in one day using a single set of bore materials. The experiment set-up is described, the experimental results discussed, and key parameters which could affect performance repeatability are identified,. C1 SCI APPLICAT INT CORP,SHALIMAR,FL 32579. RP CORNETTE, JB (reprint author), USAF,WRIGHT LAB ARMAMENT DIRECTORATE,EGLIN AFB,FL 32542, USA. NR 5 TC 6 Z9 6 U1 2 U2 4 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9464 J9 IEEE T MAGN JI IEEE Trans. Magn. PD JAN PY 1993 VL 29 IS 1 BP 379 EP 384 DI 10.1109/20.195604 PN 2 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA KN287 UT WOS:A1993KN28700011 ER PT J AU CHALLITA, A MAAS, BL BAUER, DP AF CHALLITA, A MAAS, BL BAUER, DP TI A MULTIPLE ARMATURE RAILGUN LAUNCHER SO IEEE TRANSACTIONS ON MAGNETICS LA English DT Article; Proceedings Paper CT 6TH SYMP ON ELECTROMAGNETIC LAUNCHER TECHNOLOGY CY 1992 CL UNIV TEXAS AUSTIN, INST ADV TECHNOL, AUSTIN, TX HO UNIV TEXAS AUSTIN, INST ADV TECHNOL AB As longer projectiles are accelerated, the efficiency (projectile mass/launch mass) of the launch package decreases. The reduction in efficiency makes launching projectiles with a L/D (length-to-diameter ratio) greater than 20 undesirable. EM guns have several launch characteristics which differ from conventional guns. Higher launch velocities are achievable in EM guns because sonic gas velocities do not limit the projectile velocity. Acceleration profiles for EM guns are more constant. The acceleration forces can be distributed on the projectile easily because the accelerating force can be distributed with multiple armatures. These characteristics combine to make EM guns a very attractive approach for launching very long (i.e., high L/D ratio) projectiles. Railgun launchers with multiple armatures can distribute the accelerating force. Each armature is supplied gun current for acceleration through its own set of rails. We tested this multi-rail, multi-armature concept at our railgun test facility. Our results demonstrated feasibility. We were able to control current distribution to multiple armatures. This paper describes the theory and test results for multi-armature launch of high L/D projectiles. C1 USAF,MNSH,WL,EGLIN AFB,FL 32542. RP CHALLITA, A (reprint author), IAP RES INC,2763 CULVER AVE,DAYTON,OH 45429, USA. NR 3 TC 7 Z9 7 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9464 J9 IEEE T MAGN JI IEEE Trans. Magn. PD JAN PY 1993 VL 29 IS 1 BP 763 EP 768 DI 10.1109/20.195672 PN 2 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA KN287 UT WOS:A1993KN28700079 ER PT J AU LITTRELL, DM JAMISON, KA AF LITTRELL, DM JAMISON, KA TI AN EXPERIMENTAL INVESTIGATION OF PLASMA ARMATURE RAILGUN PERFORMANCE IN THE 3.2 TO 4.2 KM/S REGIME SO IEEE TRANSACTIONS ON MAGNETICS LA English DT Article; Proceedings Paper CT 6TH SYMP ON ELECTROMAGNETIC LAUNCHER TECHNOLOGY CY 1992 CL UNIV TEXAS AUSTIN, INST ADV TECHNOL, AUSTIN, TX HO UNIV TEXAS AUSTIN, INST ADV TECHNOL AB Performance losses in a high velocity regime have been well documented for small bore (< 15 mm) plasma armature railguns, but these data are generally unavailable for larger bore railguns. This paper describes a set of experiments in which velocities up to 4.2 km/s were achieved in a midsize gun (51 mm) without discrete secondary arc formation. A figure of merit is described which relates the muzzle velocity to the electrical action applied to the barrel during acceleration. This figure of merit declines from the lower to the higher velocity firings. The comparison of the observed performance to more detailed modeling is described in a companion paper. C1 SCI APPLICAT INT CORP,SHALIMAR,FL 32579. RP LITTRELL, DM (reprint author), USAF,WRIGHT LAB,ARMAMENT DIRECTORATE,EGLIN AFB,FL 32542, USA. NR 14 TC 7 Z9 7 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9464 J9 IEEE T MAGN JI IEEE Trans. Magn. PD JAN PY 1993 VL 29 IS 1 BP 853 EP 858 DI 10.1109/20.195688 PN 2 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA KN287 UT WOS:A1993KN28700095 ER PT J AU SCANLON, JJ BATTEH, JH THORNHILL, LD JAMISON, KA LITTRELL, DM AF SCANLON, JJ BATTEH, JH THORNHILL, LD JAMISON, KA LITTRELL, DM TI ANALYSIS OF EXPERIMENTAL-DATA FROM A 50-MM RAILGUN DRIVEN BY A 5-MJ CAPACITOR POWER-SUPPLY SO IEEE TRANSACTIONS ON MAGNETICS LA English DT Article; Proceedings Paper CT 6TH SYMP ON ELECTROMAGNETIC LAUNCHER TECHNOLOGY CY 1992 CL UNIV TEXAS AUSTIN, INST ADV TECHNOL, AUSTIN, TX HO UNIV TEXAS AUSTIN, INST ADV TECHNOL AB The Compact High Energy Capacitor Module Advanced Test Experiment (CHECMATE) barrel coupled with a 5-MJ capacitor power supply has become a primary testbed for conducting armature research. CHECMATE is a nominal 50-mm, square-bore EML, which is 5 meters in length. Recent testing on this hardware was conducted using molybdenum coated rails, G-9 insulators, and a plasma armature. Eight firings were performed at various charge voltages and with various power supply triggering schemes. Muzzle velocities achieved with the 93-gram projectile ranged from 3.6 - 4.2 km/s. This paper summarizes the analysis performed on this test series. The primary focus of this analysis was to identify and assess the potential mechanisms which lead to performance degradation at high velocities. Results presented indicate that our Electric Gun Circuit Analysis Code (EGCAC) demonstrates good agreement with experimental B-dot data up to approximately 3.5 km/s; however on the higher voltage shots, EGCAC overpredicts the expected velocity. A discussion of this discrepancy along with the models used to resolve this difference are presented. C1 SCI APPLICAT INT CORP,SHALIMAR,FL 32579. USAF,WRIGHT LAB,ARMAMENT DIRECTORATE,EGLIN AFB,FL 32542. RP SCANLON, JJ (reprint author), SCI APPLICAT INT CORP,MARIETTA,GA 30062, USA. NR 8 TC 12 Z9 12 U1 1 U2 3 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9464 J9 IEEE T MAGN JI IEEE Trans. Magn. PD JAN PY 1993 VL 29 IS 1 BP 859 EP 864 DI 10.1109/20.195689 PN 2 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA KN287 UT WOS:A1993KN28700096 ER PT J AU FORD, RD JOHNSON, NE CHRISTOPHER, F KLUG, R MATYAC, M LUCAS, N BARBER, J AF FORD, RD JOHNSON, NE CHRISTOPHER, F KLUG, R MATYAC, M LUCAS, N BARBER, J TI EVOLUTIONARY DEVELOPMENT OF THE MULTIFUNCTION RAP EXPLOSIVE OPERATED SWITCHING CARTRIDGE SO IEEE TRANSACTIONS ON MAGNETICS LA English DT Article; Proceedings Paper CT 6TH SYMP ON ELECTROMAGNETIC LAUNCHER TECHNOLOGY CY 1992 CL UNIV TEXAS AUSTIN, INST ADV TECHNOL, AUSTIN, TX HO UNIV TEXAS AUSTIN, INST ADV TECHNOL AB The Rapidly Actuating Pyrotechnic (RAP) Switch was conceived and developed as an explosive operated switching array utilizing replaceable cartridges to switch very high energy (tens of megajoules) inductive storage power supplies for railgun research. The first generation switch was designed to commutate 1.5 MA peak current into a 50 nH railgun breech. By the time the switch cartridge became operational, the state of the art in guns required a switch capable of commutating 2 MA into a 200 nH breech. Novel switch design requirements include the need for a cartridge array where each cartridge presents an almost identically low inductance between the switch and load, each cartridge to contain both closing and opening circuit functions with individual firing controls, explosive debris to be self contained within the cartridge, and cartridges to be quickly reloaded into the array. Operating experience at up to 2.2 MA current has expanded the design data base to assist in scaling results from low energy experiments. This paper describes design evolution and switch performance results. C1 USAF,WRIGHT LAB,ARMAMENT DIRECTORATE,EGLIN AFB,FL 32542. IAP RES INC,DAYTON,OH 45429. RP FORD, RD (reprint author), SCI APPLICAT INT CORP,SHALIMAR,FL 32579, USA. NR 6 TC 0 Z9 0 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9464 J9 IEEE T MAGN JI IEEE Trans. Magn. PD JAN PY 1993 VL 29 IS 1 BP 943 EP 948 DI 10.1109/20.195705 PN 2 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA KN287 UT WOS:A1993KN28700112 ER PT J AU FORD, RD HUDSON, RD KLUG, RT AF FORD, RD HUDSON, RD KLUG, RT TI NOVEL HYBRID XRAM CURRENT MULTIPLIER SO IEEE TRANSACTIONS ON MAGNETICS LA English DT Article; Proceedings Paper CT 6TH SYMP ON ELECTROMAGNETIC LAUNCHER TECHNOLOGY CY 1992 CL UNIV TEXAS AUSTIN, INST ADV TECHNOL, AUSTIN, TX HO UNIV TEXAS AUSTIN, INST ADV TECHNOL AB The conventional XRAM (MARX spelled backwards) current multiplier circuit is similar in concept to the better known MARX voltage multiplier circuit. In the MARX circuit, capacitors charged in parallel from a voltage source are switched to discharge in series producing an output voltage approximately equal to the sum of individual capacitor voltages. In the XRAM circuit, inductors energized in series from a current source (battery, homopolar generator, other) are switched to discharge in parallel, producing an output current which is the sum of the individual inductor currents. In high energy pulsed power systems these multiplier techniques simplify primary power design at the expense of more complex switching. The hybrid XRAM circuit described in this paper minimizes switching requirements while retaining the positive benefits of the conventional XRAM circuit. It also provides a smooth rising current waveform which is useful for EM and ET gun research. The tradeoff for these benefits is that, during switching, approximately 50% of total system energy is stored in a capacitor bank of simple design. In addition to simplified switching, the hybrid concept offers other advantages over either an all capacitive or all inductive system. As a laboratory power supply at 2-3 MA current and 10-20 MJ stored energy, it doubles energy which would be available from a capacitive system while offering the current ''stiffness' available from an inductive system. Less obvious but potentially of greater interest, the concept appears to scale to high energy (10's to 100's of MJ) for either a distributed energy or multi shot power supply. This paper outlines two XRAM circuit concepts, and discusses the distributed energy and multi-shot aspects of the hybrid concept. It also describes a more detailed study of a battery powered hybrid XRAM current doubler design being considered for use as a general purpose laboratory inductive energy supply, operating at up to 2.5 MA with as much as 10 MJ of electrical energy stored. The circuit described is modeled using known values from existing circuit components. Resulting waveforms are shown and benefits derived from the use of this circuit are compared to those from a conventional XRAM current doubler as well as from a direct, inductive store, system design. C1 USAF,WRIGHT LAB,ARMAMENT DIRECTORATE,EGLIN AFB,FL 32542. RP FORD, RD (reprint author), SCI APPLICAT INT CORP,SHALIMAR,FL 32579, USA. NR 6 TC 17 Z9 21 U1 0 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9464 J9 IEEE T MAGN JI IEEE Trans. Magn. PD JAN PY 1993 VL 29 IS 1 BP 949 EP 953 DI 10.1109/20.195706 PN 2 PG 5 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA KN287 UT WOS:A1993KN28700113 ER PT J AU ROLADER, GE JOHNSON, NE YAKABOSKI, O MATYAC, M AF ROLADER, GE JOHNSON, NE YAKABOSKI, O MATYAC, M TI DYNAMIC BEHAVIOR OF AN EXPLOSIVE OPENING SWITCH SO IEEE TRANSACTIONS ON MAGNETICS LA English DT Article; Proceedings Paper CT 6TH SYMP ON ELECTROMAGNETIC LAUNCHER TECHNOLOGY CY 1992 CL UNIV TEXAS AUSTIN, INST ADV TECHNOL, AUSTIN, TX HO UNIV TEXAS AUSTIN, INST ADV TECHNOL AB This paper summarizes an investigation into the dynamic behavior of explosive opening switches, which are used in power compression circuits for railgun research. During switch operation, a primacord is ignited at one end of the switch, and a detonation wave propagates down the primacord along the length of the switch. It is assumed that all locations along the length of the primacord detonate simultaneously, a line detonation. A two-dimensional Eulerian hydrocode was executed to simulate the early-time dynamics of the explosive switch. Three different opening switch element geometries were considered: a circular external shape with a round internal hole, a faceted (or hexagonal) external shape with a round internal hole, and a circular external shape with a round internal hole that has four internal notches directed along predetermined shear planes. The results provide insight into the pressures, stresses, and strains experienced at various locations in the switch. C1 USAF,WRIGHT LAB,ARMAMENT DIRECTORATE,EGLIN AFB,FL 32542. RP ROLADER, GE (reprint author), SCI APPLICAT INT CORP,SHALIMAR,FL 32579, USA. NR 19 TC 1 Z9 1 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9464 J9 IEEE T MAGN JI IEEE Trans. Magn. PD JAN PY 1993 VL 29 IS 1 BP 1048 EP 1053 DI 10.1109/20.195725 PN 2 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA KN287 UT WOS:A1993KN28700132 ER PT J AU CLARK, MP MULLIS, CT AF CLARK, MP MULLIS, CT TI QUADRATIC ESTIMATION OF THE POWER SPECTRUM USING ORTHOGONAL TIME-DIVISION MULTIPLE WINDOWS SO IEEE TRANSACTIONS ON SIGNAL PROCESSING LA English DT Article AB A quadratic estimator of the power spectrum which uses time-division multiple windows (TDMW) is constructed. This estimator employs but a single window which is circularly shifted to give several estimates of the power in a spectral band. In this sense the estimator filters the input data and then performs decimation in time before forming the quadratic spectral estimate. It is therefore similar to the Welch estimator. However, the circular shifts of the window are forced to satisfy an orthogonality constraint. This constraint ensures that the estimator is a minimum mean-squared-error estimator (MMSE) for a white noise input. The problem of constructing a window to maximize the frequency selectivity of the estimator under the MMSE constraint is formulated and solved. Further, we show that while the estimator requires the computation and storage of but a single window, its performance is very similar to that of the multiwindow Thomson estimator. C1 UNIV COLORADO,DEPT ELECT & COMP ENGN,BOULDER,CO 80309. RP CLARK, MP (reprint author), USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,WRIGHT PATTERSON AFB,OH 45433, USA. NR 6 TC 2 Z9 2 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 1053-587X J9 IEEE T SIGNAL PROCES JI IEEE Trans. Signal Process. PD JAN PY 1993 VL 41 IS 1 BP 222 EP 231 DI 10.1109/TSP.1993.193141 PG 10 WC Engineering, Electrical & Electronic SC Engineering GA KG148 UT WOS:A1993KG14800020 ER PT J AU BUSHMAN, JB MITCHELL, CM JONES, PM RUBIN, KS AF BUSHMAN, JB MITCHELL, CM JONES, PM RUBIN, KS TI ALLY - AN OPERATORS ASSOCIATE FOR COOPERATIVE SUPERVISORY CONTROL-SYSTEMS SO IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS LA English DT Article ID COMPUTER AB The design, implementation, and evaluation of ALLY, a computer-based associate for the human supervisor of a simulated satellite ground control system, is described. ALLY's dynamic intent inferencing abilities and system control properties are described. Experimental evaluation of ALLY compared performance of a two-person team with a person-ALLY team in the control of a simulated satellite ground control system. C1 PARCPLACE SYST,MT VIEW,CA 94043. GEORGIA INST TECHNOL,SCH IND & SYST RES,CTR HUMAN MACHINE SYST RES,ATLANTA,GA 30332. UNIV ILLINOIS,DEPT MECH & IND ENGN,URBANA,IL 61801. RP BUSHMAN, JB (reprint author), USAF,ARMSTRONG LAB,BROOKS AFB,TX 78235, USA. NR 42 TC 15 Z9 15 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9472 J9 IEEE T SYST MAN CYB JI IEEE Trans. Syst. Man Cybern. PD JAN-FEB PY 1993 VL 23 IS 1 BP 111 EP 128 DI 10.1109/21.214771 PG 18 WC Computer Science, Cybernetics; Engineering, Electrical & Electronic SC Computer Science; Engineering GA LC009 UT WOS:A1993LC00900009 ER PT J AU LEMP, RW AF LEMP, RW BE Wright, W Kaplan, S TI A WORM IN THE APPLE - THE IMAGE OF NATURE IN CYRANO EARTHLY PARADISE SO IMAGE OF NATURE: IN LITERATURE, THE MEDIA, AND SOCIETY LA English DT Proceedings Paper CT 1993 Conference of the Society for the Interdisciplinary Study of Social Imagery: The Image of Nature in Literature, the Media, and Society CY MAR 11-13, 1993 CL COLORADO SPRINGS, CO SP SOC INTERDISCIPLINARY STUDY SOCIAL IMAGERY C1 USAF ACAD,COLORADO SPRINGS,CO 80840. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC INTERDISCIPLINARY STUDY SOCIAL IMAGERY PI PUEBLO PA UNIV CO COLORADO, PUEBLO, CO 81001 PY 1993 BP 104 EP 108 PG 5 WC Humanities, Multidisciplinary SC Arts & Humanities - Other Topics GA BZ64S UT WOS:A1993BZ64S00017 ER PT B AU MCMANAMON, PF WATSON, EA DORSCHNER, TA BARNES, LJ AF MCMANAMON, PF WATSON, EA DORSCHNER, TA BARNES, LJ BE Holst, GC TI NONMECHANICAL BEAM-STEERING FOR ACTIVE AND PASSIVE SENSORS SO INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING IV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Infrared Imaging System: Design, Analysis, Modeling, and Testing IV CY APR 14-15, 1993 CL ORLANDO, FL SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 5 Z9 5 U1 0 U2 2 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1205-8 J9 P SOC PHOTO-OPT INS PY 1993 VL 1969 BP 2 EP 10 DI 10.1117/12.154706 PG 9 WC Optics SC Optics GA BZ45J UT WOS:A1993BZ45J00001 ER PT B AU ABSI, AE STEWART, JJ WEAVER, SK AF ABSI, AE STEWART, JJ WEAVER, SK BE Holst, GC TI LANDING AID IN FOG FOR RUNWAYS SO INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING IV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Infrared Imaging System: Design, Analysis, Modeling, and Testing IV CY APR 14-15, 1993 CL ORLANDO, FL SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,AVION DIRECTORATE,ANAL SECT,WRIGHT LAB,WASHINGTON,DC 20330. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1205-8 J9 P SOC PHOTO-OPT INS PY 1993 VL 1969 BP 257 EP 268 DI 10.1117/12.154719 PG 12 WC Optics SC Optics GA BZ45J UT WOS:A1993BZ45J00024 ER PT B AU ELROD, PD LOWRY, HS SELMAN, JD AF ELROD, PD LOWRY, HS SELMAN, JD BE Holst, GC TI AN INTEGRATED APPROACH TO SPACE SENSOR TESTING SO INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING IV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Infrared Imaging System: Design, Analysis, Modeling, and Testing IV CY APR 14-15, 1993 CL ORLANDO, FL SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 ARVIN CALSPAN CORP,CTR ARNOLD ENGN DEV,ARNOLD AFB,TN. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1205-8 J9 P SOC PHOTO-OPT INS PY 1993 VL 1969 BP 296 EP 305 DI 10.1117/12.154723 PG 10 WC Optics SC Optics GA BZ45J UT WOS:A1993BZ45J00027 ER PT B AU BOYER, RT MCQUAY, WK AF BOYER, RT MCQUAY, WK BE Holst, GC TI JOINT MODELING AND SIMULATION SYSTEM SO INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING IV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Infrared Imaging System: Design, Analysis, Modeling, and Testing IV CY APR 14-15, 1993 CL ORLANDO, FL SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 AERONAUT SYST CTR,DIV ELECTR COMBAT,MODELING & SIMULAT BRANCH,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1205-8 J9 P SOC PHOTO-OPT INS PY 1993 VL 1969 BP 335 EP 340 DI 10.1117/12.154726 PG 6 WC Optics SC Optics GA BZ45J UT WOS:A1993BZ45J00031 ER PT B AU JOHNSON, WE CRANE, RL AF JOHNSON, WE CRANE, RL BE Dobrowolski, JA Verly, PG TI INTRODUCTION TO RUGATE FILTER TECHNOLOGY SO INHOMOGENEOUS AND QUASI-INHOMOGENEOUS OPTICAL COATINGS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Inhomogeneous and Quasi-Inhomogeneous Optical Coatings CY AUG 19-20, 1993 CL QUEBEC CITY, CANADA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS, GOVT CANADA, GOVT QUEBEC, GREATER QUEBEC ECON DEV CORP, CANADIAN ASSOC PHYSICISTS, DEFENCE RES ESTAB VALCARTIER, NATL OPT INST, QUEBEC CITY, INST MICROSTRUCT SCI, NAT SCI & ENGN RES COUNCIL C1 WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 37 Z9 37 U1 1 U2 3 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1305-4 J9 P SOC PHOTO-OPT INS PY 1993 VL 2046 BP 88 EP 108 DI 10.1117/12.163554 PG 21 WC Materials Science, Multidisciplinary; Optics SC Materials Science; Optics GA BZ41B UT WOS:A1993BZ41B00010 ER PT B AU JOHNSON, WE CRANE, RL AF JOHNSON, WE CRANE, RL BE Dobrowolski, JA Verly, PG TI COLOR NEUTRAL RUGATE FILTERS SO INHOMOGENEOUS AND QUASI-INHOMOGENEOUS OPTICAL COATINGS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Inhomogeneous and Quasi-Inhomogeneous Optical Coatings CY AUG 19-20, 1993 CL QUEBEC CITY, CANADA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS, GOVT CANADA, GOVT QUEBEC, GREATER QUEBEC ECON DEV CORP, CANADIAN ASSOC PHYSICISTS, DEFENCE RES ESTAB VALCARTIER, NATL OPT INST, QUEBEC CITY, INST MICROSTRUCT SCI, NAT SCI & ENGN RES COUNCIL C1 WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 1 Z9 1 U1 0 U2 1 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1305-4 J9 P SOC PHOTO-OPT INS PY 1993 VL 2046 BP 132 EP 140 DI 10.1117/12.163543 PG 9 WC Materials Science, Multidisciplinary; Optics SC Materials Science; Optics GA BZ41B UT WOS:A1993BZ41B00013 ER PT J AU GLEASON, D AF GLEASON, D GP INST NAVIGAT TI USING GPS, IMU AND LASER RANGER TECHNOLOGY TO OBTAIN AN OPTIMAL GLOBAL GRAVITY MODEL-BASED ON INTERSATELLITE RANGE-RATE CHANGE DATA SO INSTITUTE OF NAVIGATION PROCEEDINGS OF THE 49TH ANNUAL MEETING: FUTURE GLOBAL NAVIGATION AND GUIDANCE LA English DT Proceedings Paper CT 49th Annual Meeting of the Institute-of-Navigation on Future Global Navigation and Guidance CY JUN 21-23, 1993 CL CAMBRIDGE, MA SP INST NAVIGAT, CHARLES STARK DRAPER LAB C1 USAF,PHILLIPS LAB,GEOPHYS DIRECTORATE,DIV EARTH SCI,LOWELL,MA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU INST NAVIGATION PI WASHINGTON PA 815 15TH ST NW, STE 832, WASHINGTON, DC 20005 PY 1993 BP 251 EP 260 PG 10 WC Engineering, Aerospace; Transportation SC Engineering; Transportation GA BA50A UT WOS:A1993BA50A00028 ER PT J AU PASSMORE, R AF PASSMORE, R GP INST NAVIGAT TI IMAGING INFRARED SEEKER TECHNOLOGY FOR TACTICAL MISSILES SO INSTITUTE OF NAVIGATION PROCEEDINGS OF THE 49TH ANNUAL MEETING: FUTURE GLOBAL NAVIGATION AND GUIDANCE LA English DT Proceedings Paper CT 49th Annual Meeting of the Institute-of-Navigation on Future Global Navigation and Guidance CY JUN 21-23, 1993 CL CAMBRIDGE, MA SP INST NAVIGAT, CHARLES STARK DRAPER LAB C1 USAF,MISSILE COMMAND,WASHINGTON,DC 20330. NR 0 TC 0 Z9 0 U1 0 U2 0 PU INST NAVIGATION PI WASHINGTON PA 815 15TH ST NW, STE 832, WASHINGTON, DC 20005 PY 1993 BP 369 EP 379 PG 11 WC Engineering, Aerospace; Transportation SC Engineering; Transportation GA BA50A UT WOS:A1993BA50A00039 ER PT J AU VASQUEZ, J RIGGINS, B AF VASQUEZ, J RIGGINS, B GP INST NAVIGAT TI DETECTION OF SPOOFING, JAMMING OR FAILURE OF GPS SO INSTITUTE OF NAVIGATION PROCEEDINGS OF THE 49TH ANNUAL MEETING: FUTURE GLOBAL NAVIGATION AND GUIDANCE LA English DT Proceedings Paper CT 49th Annual Meeting of the Institute-of-Navigation on Future Global Navigation and Guidance CY JUN 21-23, 1993 CL CAMBRIDGE, MA SP INST NAVIGAT, CHARLES STARK DRAPER LAB C1 USAF,LOS ANGELES AFB,CA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU INST NAVIGATION PI WASHINGTON PA 815 15TH ST NW, STE 832, WASHINGTON, DC 20005 PY 1993 BP 447 EP 456 PG 10 WC Engineering, Aerospace; Transportation SC Engineering; Transportation GA BA50A UT WOS:A1993BA50A00046 ER PT J AU ANDERSON, S SCHULTHESS, M SEBESTA, H BLACKBURN, J BAUGH, S AF ANDERSON, S SCHULTHESS, M SEBESTA, H BLACKBURN, J BAUGH, S GP INST NAVIGAT TI DESIGN OF THE HIGH-ALTITUDE BALLOON EXPERIMENT LINE-OF-SIGHT STABILIZATION AND POINTING SYSTEM SO INSTITUTE OF NAVIGATION PROCEEDINGS OF THE 49TH ANNUAL MEETING: FUTURE GLOBAL NAVIGATION AND GUIDANCE LA English DT Proceedings Paper CT 49th Annual Meeting of the Institute-of-Navigation on Future Global Navigation and Guidance CY JUN 21-23, 1993 CL CAMBRIDGE, MA SP INST NAVIGAT, CHARLES STARK DRAPER LAB C1 USAF,PHILLIPS LAB,KIRTLAND AFB,NM 87117. NR 0 TC 0 Z9 0 U1 0 U2 0 PU INST NAVIGATION PI WASHINGTON PA 815 15TH ST NW, STE 832, WASHINGTON, DC 20005 PY 1993 BP 735 EP 745 PG 11 WC Engineering, Aerospace; Transportation SC Engineering; Transportation GA BA50A UT WOS:A1993BA50A00076 ER PT B AU SHAW, L AF SHAW, L BE Chapelle, P Vermeir, G TI FLIGHT AND GROUND ACOUSTIC ENVIRONMENT OF THE C-5A AIRCRAFT SO INTER-NOISE 93 - PEOPLE VERSUS NOISE, VOLS 1-3 SE INTER-NOISE LA English DT Proceedings Paper CT 1993 International Congress on Noise Control Engineering (Inter-Noise 93) - People Versus Noise CY AUG 24-26, 1993 CL LEUVEN, BELGIUM SP INT INST NOISE CONTROL ENGN, KATHOLIEKE UNIV LEUVEN, INTERBREW STELLA ARTOIS, ISOVER, BRUEL & KJAER, BELGIAN BLDG RES INST, CDM, NIT, BBL TRAVEL, SABENA BELGIAN WORLD AIRLINES C1 WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU KONINKLIJKE VLAAMSE INGENIEURS VERENIGING PI ANTWERP PA DESGUINIEI 214, ANTWERP, BELGIUM BN 90-5204-024-9 J9 INTER NOISE PY 1993 BP 1761 EP 1764 PG 4 WC Acoustics; Engineering, Aerospace; Engineering, Manufacturing; Engineering, Civil; Engineering, Mechanical; Public, Environmental & Occupational Health SC Acoustics; Engineering; Public, Environmental & Occupational Health GA BB95D UT WOS:A1993BB95D00373 ER PT J AU SWENSON, KN HOMMEL, D WOHLT, K AF SWENSON, KN HOMMEL, D WOHLT, K TI HISTOMORPHOMETRY OF THE PRIMATE VERTEBRAL BODY FOLLOWING IONIZING-RADIATION SO INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS LA English DT Meeting Abstract C1 UNIV CINCINNATI,CINCINNATI,OH 45221. USAF HOSP,WRIGHT PATTERSON AFB,OH. USAF,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0360-3016 J9 INT J RADIAT ONCOL JI Int. J. Radiat. Oncol. Biol. Phys. PY 1993 VL 27 SU 1 BP 308 EP 309 PG 2 WC Oncology; Radiology, Nuclear Medicine & Medical Imaging SC Oncology; Radiology, Nuclear Medicine & Medical Imaging GA LV404 UT WOS:A1993LV40400358 ER PT J AU WARD, CH AF WARD, CH TI MICROSTRUCTURE EVOLUTION AND ITS EFFECT ON TENSILE AND FRACTURE-BEHAVIOR OF TI-AL-NB ALPHA(2)-INTERMETALLICS SO INTERNATIONAL MATERIALS REVIEWS LA English DT Review ID C-COMPONENT DISLOCATIONS; TITANIUM ALUMINIDE ALLOY; ELEVATED-TEMPERATURES; TI3AL-NB ALLOY; PHASE-TRANSFORMATIONS; PLASTIC-DEFORMATION; BETA-PHASE; ALPHA-2; MECHANISMS; EQUILIBRIA AB The alloy system based on the nominal composition Ti-25Al was first studied over 30 years ago, and has undergone research for approximately the past 15 years. However, only during the past 6 years has this system been open for general public disclosure of previous government research in this area, this has lead to a deluge of research results across the world. This review covers those results as they pertain to the alpha2 alloy system based on Ti-Al-Nb. The complicated phase transformation sequences and stabilities for this alloy system are addressed. Furthermore, dislocation behaviour in both single phase alpha2 and dual phase alpha2 + beta/B2 is described. Finally, the correlation of microstructure and dislocation behaviour with tensile and fracture properties is presented. C1 WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH. OI Ward, Charles/0000-0002-5813-439X NR 99 TC 61 Z9 63 U1 2 U2 14 PU ASM INTERNATIONAL PI MATERIALS PARK PA SUBSCRIPTIONS SPECIALIST CUSTOMER SERVICE, MATERIALS PARK, OH 44073-0002 SN 0950-6608 J9 INT MATER REV JI Int. Mater. Rev. PY 1993 VL 38 IS 2 BP 79 EP 101 PG 23 WC Materials Science, Multidisciplinary SC Materials Science GA PP500 UT WOS:A1993PP50000002 ER PT J AU MCKIMPSON, MG POHLENZ, EL THOMPSON, SR AF MCKIMPSON, MG POHLENZ, EL THOMPSON, SR TI EVALUATING THE MECHANICAL-PROPERTIES OF COMMERCIAL DRA SO JOM-JOURNAL OF THE MINERALS METALS & MATERIALS SOCIETY LA English DT Article ID DISCONTINUOUSLY REINFORCED ALUMINUM; COMPOSITES AB An extensive multilaboratory testing program has been carried out to characterize the properties of commercially available discontinuously reinforced aluminum (DRA) composites fabricated using powder metallurgy techniques. The results demonstrate that these materials can be evaluated reliably using standard techniques and highlight the consistent properties now available from these emerging materials. C1 USAF,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RP MCKIMPSON, MG (reprint author), MICHIGAN TECHNOL UNIV,INST MAT PROC,HOUGHTON,MI 49931, USA. NR 4 TC 13 Z9 13 U1 0 U2 1 PU MINERALS METALS MATERIALS SOC PI WARRENDALE PA 420 COMMONWEALTH DR, WARRENDALE, PA 15086 SN 1047-4838 J9 JOM-J MIN MET MAT S JI JOM-J. Miner. Met. Mater. Soc. PD JAN PY 1993 VL 45 IS 1 BP 26 EP 29 PG 4 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing SC Materials Science; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing GA KF888 UT WOS:A1993KF88800004 ER PT J AU SCHWARZHOFF, R CODY, JT AF SCHWARZHOFF, R CODY, JT TI THE EFFECTS OF ADULTERATING AGENTS ON FPIA ANALYSIS OF URINE FOR DRUGS OF ABUSE SO JOURNAL OF ANALYTICAL TOXICOLOGY LA English DT Article ID IMMUNOASSAY C1 WILFORD HALL USAF MED CTR,CLIN INVEST DIRECTORATE,LACKLAND AFB,TX 78236. RP SCHWARZHOFF, R (reprint author), ARMSTRONG LAB,DIV DRUG TESTING,BROOKS AFB,TX 78235, USA. NR 5 TC 30 Z9 31 U1 0 U2 6 PU PRESTON PUBLICATIONS INC PI NILES PA 7800 MERRIMAC AVE PO BOX 48312, NILES, IL 60648 SN 0146-4760 J9 J ANAL TOXICOL JI J. Anal. Toxicol. PD JAN-FEB PY 1993 VL 17 IS 1 BP 14 EP 17 PG 4 WC Chemistry, Analytical; Toxicology SC Chemistry; Toxicology GA KH434 UT WOS:A1993KH43400004 PM 8429620 ER PT J AU CODY, JT SCHWARZHOFF, R AF CODY, JT SCHWARZHOFF, R TI FLUORESCENCE POLARIZATION IMMUNOASSAY DETECTION OF AMPHETAMINE, METHAMPHETAMINE, AND ILLICIT AMPHETAMINE ANALOGS SO JOURNAL OF ANALYTICAL TOXICOLOGY LA English DT Article C1 ARMSTRONG LAB,DIV DRUG TESTING,BROOKS AFB,TX 78235. RP CODY, JT (reprint author), WILFORD HALL USAF MED CTR,CLIN INVEST DIRECTORATE,LACKLAND AFB,TX 78236, USA. NR 7 TC 29 Z9 30 U1 0 U2 2 PU PRESTON PUBLICATIONS INC PI NILES PA 7800 MERRIMAC AVE PO BOX 48312, NILES, IL 60648 SN 0146-4760 J9 J ANAL TOXICOL JI J. Anal. Toxicol. PD JAN-FEB PY 1993 VL 17 IS 1 BP 26 EP 30 PG 5 WC Chemistry, Analytical; Toxicology SC Chemistry; Toxicology GA KH434 UT WOS:A1993KH43400007 ER PT J AU FISCHER, DW MANASREH, MO TALWAR, DN MATOUS, G AF FISCHER, DW MANASREH, MO TALWAR, DN MATOUS, G TI ISOCHRONAL ANNEALING OF LOCAL VIBRATIONAL-MODES IN PROTON-IMPLANTED AND DEUTERON-IMPLANTED INP SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID HYDROGEN INCORPORATION; SINGLE-CRYSTALS; SEMICONDUCTORS; GAAS AB We have performed isochronal annealing experiments on the hydrogen-related local vibrational modes (LVMs) created by proton and deuteron implantation of InP. Implanted samples were annealed in 50-degrees-C increments in the 200-600-degrees-C temperature range for 30 min each and then measured by infrared absorption. A group of four different LVMs is observed, each of which arises from the hydrogen-phosphorus stretching vibration with different defects or impurities at nearest-neighbor sites. Each LVM exhibits an annealing behavior that is different than any of the other LVMs. The annealing results are shown arid discussed in relation to the possible microscopic structure of the defect responsible for each LVM. C1 WRIGHT LAB, DIV SOLID STATE ELECTR, WRIGHT PATTERSON AFB, OH 45433 USA. INDIANA UNIV PENN, DEPT PHYS, INDIANA, PA 15705 USA. RP WRIGHT LAB, MAT DIRECTORATE, WRIGHT PATTERSON AFB, OH 45433 USA. RI Schaff, William/B-5839-2009 NR 23 TC 10 Z9 10 U1 0 U2 0 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD JAN 1 PY 1993 VL 73 IS 1 BP 78 EP 83 DI 10.1063/1.353832 PG 6 WC Physics, Applied SC Physics GA KE714 UT WOS:A1993KE71400014 ER PT J AU REA, MA MICHEL, AM LUTTON, LM AF REA, MA MICHEL, AM LUTTON, LM TI IS FOS EXPRESSION NECESSARY AND SUFFICIENT TO MEDIATE LIGHT-INDUCED PHASE ADVANCES OF THE SUPRACHIASMATIC CIRCADIAN OSCILLATOR SO JOURNAL OF BIOLOGICAL RHYTHMS LA English DT Article DE C-FOS; SUPRACHIASMATIC NUCLEI; EXCITATORY AMINO ACIDS; CIRCADIAN RHYTHM ID LATERAL GENICULATE-NUCLEUS; POLYPEPTIDE-LIKE IMMUNOREACTIVITY; ACID RECEPTOR ANTAGONISTS; GENE-EXPRESSION; C-FOS; RETINOHYPOTHALAMIC TRACT; PHOTIC INDUCTION; RAT HYPOTHALAMUS; ACTIVITY RHYTHM; GOLDEN-HAMSTER AB Photic stimulation during the subjective night induces the expression of Fos among a discrete population of cells in the suprachiasmatic nuclei (SCN) region of the Syrian hamster. Light appears to stimulate Fos expression only when administered at circadian times (CTs) at which exposure causes a phase shift. Different populations of SCN cells express Fos in response to light pulses that result in phase advances versus phase delays, raising the possibility that different cell populations in the suprachiasmatic hypothalamus participate in light-induced phase advances and delays of the circadian oscillator. Microinjection of excitatory amino acid (EAA) antagonists into the region of the SCN attenuates light-induced phase advances of the free-running activity rhythm and light-induced Fos expression in the hamster SCN. However, injection of N-methyl-D-aspartate (NMDA) at CT 18, which results in a widespread pattern of Fos expression in the hypothalamus that includes the retinorecipient zone of the SCN, does not produce phase advances of the circadian oscillator. The results demonstrate that both light-induced Fos expression and light-induced phase advances are dependent upon EAA neurotransmission within the SCN region. However, expression of Fos in the SCN induced by the EAA agonist NMDA is not sufficient to cause phase advances of the SCN oscillator. RP REA, MA (reprint author), CFTO,ARMSTRONG LAB,CIRCADIAN NEUROBIOL RES GRP,BROOKS AFB,TX 78235, USA. NR 35 TC 39 Z9 39 U1 0 U2 1 PU SAGE PUBLICATIONS INC PI THOUSAND OAKS PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 SN 0748-7304 J9 J BIOL RHYTHM JI J. Biol. Rhythms PY 1993 VL 8 SU S BP S59 EP S64 PG 6 WC Biology; Physiology SC Life Sciences & Biomedicine - Other Topics; Physiology GA MB818 UT WOS:A1993MB81800010 PM 8274763 ER PT J AU FUQUA, SAW ALLRED, DC AUCHUS, RJ AF FUQUA, SAW ALLRED, DC AUCHUS, RJ TI EXPRESSION OF ESTROGEN-RECEPTOR VARIANTS SO JOURNAL OF CELLULAR BIOCHEMISTRY LA English DT Article; Proceedings Paper CT Workshop on Chemoprevention of Breast Cancer CY OCT 06-10, 1993 CL LAKE TAHOE, CA SP NCI, CHEMOPREVENTION INVESTIGAT DRUG UNIT, DIV CANC PREVENT & CONTROL DE BREAST CANCER; ER MUTATIONS; TAMOXIFEN RESISTANCE ID SENSITIVITY AB Recent data suggest that the expression of estrogen receptor (ER) variants may be common in clinical breast cancer. The significance of their expression is complicated by the fact that they are often coexpressed with wild-type ER in the same tumor. We have focused upon one such ER variant which lacks exon 5 within the hormone binding domain of the receptor. This deletion introduces a stop codon, resulting in a truncated ER of 40 kDa which is unable to bind hormone. We have been exploring the hypothesis that this variant may contribute to clinical antiestrogen resistance. Coexpression of the exon 5 variant along with wild-type ER in MCF-7 human breast cancer cells confers resistance to the commonly used antiestrogen, tamoxifen. In addition, we have observed that some metastatic breast lesions overexpress exon 5 ER deletional variant transcripts. We conclude that differences in the relative amounts of several ER variants in the same tumor may interact to determine hormonal responsiveness and metastatic behavior. (C) 1993 Wiley-Liss, Inc. C1 UNIV TEXAS,HLTH SCI CTR,DEPT PATHOL,SAN ANTONIO,TX 78284. UNIV TEXAS,HLTH SCI CTR,DEPT MED,DIV ENDOCRINOL,SAN ANTONIO,TX 78284. WILFORD HALL USAF MED CTR,DEPT ENDOCRINOL,LACKLAND AFB,TX 78236. RP FUQUA, SAW (reprint author), UNIV TEXAS,HLTH SCI CTR,DEPT MED,DIV ONCOL,SAN ANTONIO,TX 78284, USA. NR 8 TC 2 Z9 2 U1 0 U2 0 PU WILEY-LISS PI NEW YORK PA DIV JOHN WILEY & SONS INC 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0730-2312 J9 J CELL BIOCHEM JI J. Cell. Biochem. PY 1993 SU 17G BP 194 EP 197 PG 4 WC Biochemistry & Molecular Biology; Cell Biology SC Biochemistry & Molecular Biology; Cell Biology GA NE169 UT WOS:A1993NE16900034 ER PT J AU PERRAM, GP DAVIS, SJ AF PERRAM, GP DAVIS, SJ TI COLLISIONAL DYNAMICS OF THE BRCLB3-PI(0+) STATE .2. VIBRATIONAL AND ROTATIONAL ENERGY-TRANSFER SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID B PI-3(O+) STATE; LASER-EXCITATION; RADIATIVE LIFETIME; MOLECULES; BR2 AB Vibrational and rotational energy transfer with B 3PI(0+) state of bromine monochloride was studied using both pulsed and steady-state laser-induced fluorescence techniques. Rate coefficients for state-to-state vibrational transfer were determined from the observed BrCl(B-X) emission in the presence of Cl2, He, Ne, Ar, Kr, and Xe. Vibrational states v' = 0 to 7 were probed, and resolved emission was observed from states v' = 0 to 6. The vibrational transfer within BrCl(B) is rapid, as expected from the small vibrational spacing The fundamental rate coefficient for vibrational transfer from v' = 1 to v' = 0 with chlorine as the collision partner is 1.3 X 10(-11) cm3 molecules-1 s-1 and the vibrational transfer rate coefficient scales with vibrational quantum number as a power law with an exponent of 0.63. Vibrational transfer with the noble gases is less efficient with fundamental rate coefficients ranging from 4 X 10(-12) cm3 molecules-1 s-1 for helium to 2 X 10(-12) cm3 molecules-1 s-1 for krypton. The scaling of vibrational transfer rates with vibrational quantum number for the noble gases is consistent with the Landau-Teller theory. The DELTAv = -2 rate coefficients are estimated at 40% of the DELTAv = -1 rates. Methods of analyzing the temporal profiles of vibrationally resolved emission from laser-induced fluorescence experiments are described for conditions where vibrational transfer is rapid and the excited vibrational states are strongly coupled. Rotational transfer in BrCl(B) is very efficient with total removal rates ranging from 1.6 X 10(-10) cm3 molecules-1 s-1 for chlorine collisions to 2.4 X 10(-10) cm3 molecules-1 s-1 for argon. C1 PHYS SCI INC,ANDOVER,MA 01810. RP PERRAM, GP (reprint author), USAF,INST TECHNOL,DEPT ENGN PHYS,WRIGHT PATTERSON AFB,OH 45433, USA. OI Perram, Glen/0000-0002-4417-3929 NR 38 TC 6 Z9 6 U1 1 U2 1 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD JAN 1 PY 1993 VL 98 IS 1 BP 373 EP 382 DI 10.1063/1.464630 PG 10 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA KF406 UT WOS:A1993KF40600042 ER PT J AU SHAFFER, AA WIERSCHKE, SG AF SHAFFER, AA WIERSCHKE, SG TI COMPARISON OF COMPUTATIONAL METHODS APPLIED TO OXAZOLE, THIAZOLE, AND OTHER HETEROCYCLIC-COMPOUNDS SO JOURNAL OF COMPUTATIONAL CHEMISTRY LA English DT Article ID MECHANICAL MOLECULAR-MODELS; SEMIEMPIRICAL METHODS; PARAMETERS; OPTIMIZATION; AM1 AB A variety of computational methods, including the semiempirical techniques AM1, PM3, and MNDO, and the thermochemical basis sets of Benson and Stine, was used to calculate and compare heats of formation (DELTAH(f)-degrees) data for optimized geometries of a variety of aromatic and nonaromatic heterocycles. Detailed analyses, including 6-31G* and MP2/6-31G* ab initio calculations, were performed for the oxazole and thiazole heterocycles. The results indicate a scatter among the methods sensitive to the nature of the heterocycle. This was in particular evident in the oxazole molecule, where AM1 gave a singularly high value of DELTAH(f)-degrees consistent with longer calculated bond lengths, particularly about the oxygen atom. Aromatic stabilization energy appears to be addressed differently among the employed methods. Implications of this contrast applied to calculation of macromolecular systems containing heterocyclic units are discussed. C1 USAF,DEPT CHEM,COLORADO SPRINGS,CO 80840. RP SHAFFER, AA (reprint author), USAF,FRANK J SEILER RES LAB,COLORADO SPRINGS,CO 80840, USA. NR 26 TC 33 Z9 33 U1 1 U2 1 PU JOHN WILEY & SONS INC PI NEW YORK PA 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0192-8651 J9 J COMPUT CHEM JI J. Comput. Chem. PD JAN PY 1993 VL 14 IS 1 BP 75 EP 88 DI 10.1002/jcc.540140112 PG 14 WC Chemistry, Multidisciplinary SC Chemistry GA KC004 UT WOS:A1993KC00400010 ER PT J AU LI, SH BHATTACHARYA, PK CHUNG, SW SMITH, SR MITCHELL, WC AF LI, SH BHATTACHARYA, PK CHUNG, SW SMITH, SR MITCHELL, WC TI DEEP LEVELS IN UNDOPED SI1-XGEX GROWN BY GAS-SOURCE MOLECULAR-BEAM EPITAXY SO JOURNAL OF ELECTRONIC MATERIALS LA English DT Letter DE DEEP LEVELS; GAS-SOURCE MOLECULAR BEAM EPITAXY; SILICON-GERMANIUM ALLOYS AB Deep levels have been identified and characterized in undoped Si1-xGex alloys grown on silicon substrates by gas-source molecular beam epitaxy. Hole traps in the p-type layers have activation energies ranging from 0.029-0.45 eV and capture cross sections (sigma(infinity)) ranging from 10(-9) to 10(-20) cm2. Possible origins of these centers are discussed. C1 UNIV DAYTON,RES INST,DAYTON,OH 45469. WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RP LI, SH (reprint author), UNIV MICHIGAN,DEPT ELECT ENGN & COMP SCI,SOLID STATE ELECTR LAB,ANN ARBOR,MI 48109, USA. NR 7 TC 4 Z9 4 U1 0 U2 0 PU MINERALS METALS MATERIALS SOC PI WARRENDALE PA 420 COMMONWEALTH DR, WARRENDALE, PA 15086 SN 0361-5235 J9 J ELECTRON MATER JI J. Electron. Mater. PD JAN PY 1993 VL 22 IS 1 BP 151 EP 153 DI 10.1007/BF02665738 PG 3 WC Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Physics, Applied SC Engineering; Materials Science; Physics GA KH523 UT WOS:A1993KH52300021 ER PT J AU MANN, RW AF MANN, RW TI A METHOD FOR SIDING AND SEQUENCING HUMAN RIBS SO JOURNAL OF FORENSIC SCIENCES LA English DT Note DE PHYSICAL ANTHROPOLOGY; HUMAN RIB; OSTEOLOGY; FORENSIC ANTHROPOLOGY AB Siding and sequencing (that is putting in anatomical order) human ribs are essential to the proper examination and documentation of injuries to the chest. The paucity of information regarding sequencing nonfleshed human ribs makes it particularly difficult for physical anthropologists and medicolegal authorities to differentiate the midthoracic ribs. It was found that ribs could be accurately sequenced without the aid of a comparative skeleton using such features as maximum (relative) rib length. the size and shape of the articular facets, the distance between the articular facets and rib angle. and the height of the rib heads relative to one another. RP MANN, RW (reprint author), USA,CENT ID LAB,BLDG 45,FT KAMEHAMEHA,HICKAM AFB,HI 96853, USA. NR 6 TC 19 Z9 19 U1 0 U2 2 PU AMER SOC TESTING MATERIALS PI W CONSHOHOCKEN PA 100 BARR HARBOR DR, W CONSHOHOCKEN, PA 19428-2959 SN 0022-1198 J9 J FORENSIC SCI JI J. Forensic Sci. PD JAN PY 1993 VL 38 IS 1 BP 151 EP 155 PG 5 WC Medicine, Legal SC Legal Medicine GA KH541 UT WOS:A1993KH54100024 PM 8426150 ER PT J AU JAUCHEM, J AF JAUCHEM, J TI ALLEGED HEALTH-EFFECTS OF ELECTRIC OR MAGNETIC-FIELDS - ADDITIONAL MISCONCEPTIONS IN THE LITERATURE SO JOURNAL OF MICROWAVE POWER AND ELECTROMAGNETIC ENERGY LA English DT Review DE ELECTROMAGNETIC FIELDS; NONIONIZING RADIATION; MAGNETIC FIELDS AB Residential or occupational exposures to electric or magnetic fields have been reported to be associated with health problems, particularly cancer and reproductive mishaps. Misconceptions about these alleged effects continue to be published in the medical and scientific literature. Invalid statements relating to these effects are challenged in this paper. Case reports and studies dealing with exposures to video display terminals, magnetic resonance imaging, microwaves from television transmitter facilities, ceiling cable electric heat, electromagnetic pulse, power lines, traffic radar units, and other occupational exposures are analyzed. RP JAUCHEM, J (reprint author), OCCUPAT & ENVIRONM HLTH DIRECTORATE,ARMSTRONG LAB,DIV RADIOFREQUENCY RADIAT,BROOKS AFB,TX 78235, USA. NR 0 TC 11 Z9 11 U1 0 U2 0 PU INT MICROWAVE POWER INST PI MANASSAS PA 10210 LEATHERLEAF COURT, MANASSAS, VA 22111 SN 0832-7823 J9 J MICROWAVE POWER EE JI J. Microw. Power Electromagn. Energy PY 1993 VL 28 IS 3 BP 140 EP 155 PG 16 WC Engineering, Chemical; Engineering, Electrical & Electronic; Materials Science, Multidisciplinary SC Engineering; Materials Science GA MH948 UT WOS:A1993MH94800004 PM 8271147 ER PT J AU SHOWALTER, D AF SHOWALTER, D TI MOLTKE, SCHLIEFFEN AND PRUSSIAN WAR PLANNING - BUCHOLZ,A SO JOURNAL OF MILITARY HISTORY LA English DT Book Review RP SHOWALTER, D (reprint author), USAF,WASHINGTON,DC 20330, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU VIRGINIA MILITARY INST PI LEXINGTON PA LEXINGTON, VA 24450 SN 0899-3718 J9 J MILITARY HIST JI J. Mil. Hist. PD JAN PY 1993 VL 57 IS 1 BP 154 EP 156 DI 10.2307/2944243 PG 3 WC History SC History GA KH426 UT WOS:A1993KH42600024 ER PT J AU REA, MA GANNON, RL AF REA, MA GANNON, RL TI DISTRIBUTION OF EXCITATORY AMINO-ACID RECEPTOR IMMUNOREACTIVITY IN THE RAT SUPRACHIASMATIC NUCLEI SO JOURNAL OF NEUROCHEMISTRY LA English DT Meeting Abstract C1 USAF,ARMSTRONG LAB,CIRCADIAN NEUROBIOL RES GRP,BROOKS AFB,TX 78235. NR 0 TC 0 Z9 0 U1 0 U2 0 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 0022-3042 J9 J NEUROCHEM JI J. Neurochem. PY 1993 VL 61 SU S BP S9 EP S9 PG 1 WC Biochemistry & Molecular Biology; Neurosciences SC Biochemistry & Molecular Biology; Neurosciences & Neurology GA LM565 UT WOS:A1993LM56500032 ER PT J AU MORRILL, KW FOSTER, J HAID, RW AF MORRILL, KW FOSTER, J HAID, RW TI THE LE-FORT-I OSTEOTOMY AS AN APPROACH TO THE MIDCRANIAL BASE FOR TUMOR RESECTION - CASE-REPORT SO JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY LA English DT Article ID TRANSTEMPORAL-SPHENOID APPROACH; SKULL-BASE C1 WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. 51ST MED GRP,DEPT ORAL & MAXILLOFACIAL SURG,OSAN AB,SOUTH KOREA. 51ST MED GRP,DEPT NEUROSURG,OSAN AB,SOUTH KOREA. NR 14 TC 3 Z9 4 U1 0 U2 0 PU W B SAUNDERS CO PI PHILADELPHIA PA INDEPENDENCE SQUARE WEST CURTIS CENTER, STE 300, PHILADELPHIA, PA 19106-3399 SN 0278-2391 J9 J ORAL MAXIL SURG JI J. Oral Maxillofac. Surg. PD JAN PY 1993 VL 51 IS 1 BP 82 EP 84 PG 3 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA KK432 UT WOS:A1993KK43200019 PM 8419579 ER PT J AU LALLY, KP CHEU, HW VAZQUEZ, WD AF LALLY, KP CHEU, HW VAZQUEZ, WD TI PROSTHETIC DIAPHRAGM RECONSTRUCTION IN THE GROWING ANIMAL SO JOURNAL OF PEDIATRIC SURGERY LA English DT Article DE CONGENITAL DIAPHRAGMATIC HERNIA ID AGENESIS; REPAIR; HEMIDIAPHRAGM C1 WILFORD HALL USAF MED CTR,DEPT SURG,SAN ANTONIO,TX. UNIFORMED SERV UNIV HLTH SCI,SAN ANTONIO,TX. NR 13 TC 35 Z9 35 U1 0 U2 0 PU W B SAUNDERS CO PI PHILADELPHIA PA INDEPENDENCE SQUARE WEST CURTIS CENTER, STE 300, PHILADELPHIA, PA 19106-3399 SN 0022-3468 J9 J PEDIATR SURG JI J. Pediatr. Surg. PD JAN PY 1993 VL 28 IS 1 BP 45 EP 47 DI 10.1016/S0022-3468(05)80352-5 PG 3 WC Pediatrics; Surgery SC Pediatrics; Surgery GA KG664 UT WOS:A1993KG66400010 PM 8429470 ER PT J AU SELF, DA EWERT, DL SWOPE, RD CRISMAN, RP LATHAM, RD AF SELF, DA EWERT, DL SWOPE, RD CRISMAN, RP LATHAM, RD TI A NEW METHOD FOR BEAT-TO-BEAT DETERMINATION OF PERIPHERAL RESISTANCE AND SYSTEMIC ARTERIAL COMPLIANCE UNDER NON-STEADY-STATE CONDITIONS DURING +GZ CENTRIFUGATION SO JOURNAL OF PHYSIOLOGY-LONDON LA English DT Meeting Abstract C1 ARMSTRONG LAB,AEROSP CARDIOVASC RES LAB,BROOKS AFB,TX 78235. N CAROLINA STATE UNIV,DEPT ELECT ENGN,RALEIGH,NC 27695. TRINITY UNIV,DEPT ENGN SCI,SAN ANTONIO,TX 78284. NR 0 TC 0 Z9 0 U1 0 U2 0 PU CAMBRIDGE UNIV PRESS PI NEW YORK PA 40 WEST 20TH STREET, NEW YORK, NY 10011-4211 SN 0022-3751 J9 J PHYSIOL-LONDON JI J. Physiol.-London PY 1993 VL 467 BP P206 EP P206 PG 1 WC Neurosciences; Physiology SC Neurosciences & Neurology; Physiology GA LN792 UT WOS:A1993LN79200201 ER PT J AU CHUPP, RE NELSON, P AF CHUPP, RE NELSON, P TI EVALUATION OF BRUSH SEALS FOR LIMITED-LIFE ENGINES SO JOURNAL OF PROPULSION AND POWER LA English DT Article AB Brush seals are a relatively new concept for replacing labyrinth seals in gas turbine engines. An evaluation was performed to assess the potential of brush seals for limited-life gas turbine engines. A rotating rig was designed and built to test labyrinth and brush seals over a range of simulated engine conditions. An initial set of brush seals was rig-tested to determine leakage and wear performance and identify potential optimum configurations. The measured results showed that brush seals offer significant improvements over labyrinth seals with a factor of three or more reduction in leakage flow. Brush seals exhibit an initial wear-in period but retain significantly reduced leakage over labyrinth seals for times exceeding most limited-life engine applications. Consequently, brush seals offer the potential to precisely meter cooling/leakage air, thereby decreasing parasitic leakage and improving fuel consumption and thrust. rhus, brush seals are a definite candidate for replacing labyrinth seals in gas turbine engines. C1 USAF,WL,POTP,PROP BRANCH,AERO PROP & POWER DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RP CHUPP, RE (reprint author), TELEDYNE CAE,TOLEDO,OH 43612, USA. NR 7 TC 11 Z9 11 U1 0 U2 1 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0748-4658 J9 J PROPUL POWER JI J. Propul. Power PD JAN-FEB PY 1993 VL 9 IS 1 BP 113 EP 118 DI 10.2514/3.11492 PG 6 WC Engineering, Aerospace SC Engineering GA KH098 UT WOS:A1993KH09800016 ER PT J AU BOYLE, JJ NAYLOR, WP BLACKMAN, RB AF BOYLE, JJ NAYLOR, WP BLACKMAN, RB TI MARGINAL ACCURACY OF METAL CERAMIC RESTORATIONS WITH PORCELAIN FACIAL MARGINS SO JOURNAL OF PROSTHETIC DENTISTRY LA English DT Article ID CROWNS; CASTABILITY; ALLOYS; FIT AB This study compared porcelain facial margins made with the direct-lift technique using high-fusing shoulder porcelains and the platinum foil technique with conventional body porcelain. Marginal accuracy was measured directly and the marginal sharpness computed by the software program MacDraft. Both Vita high-fusing shoulder porcelain and Vita SM 90 porcelain produced restorations that had significantly smaller mean facial marginal openings than crowns created with platinum foil. However, the SM 90 porcelain recorded significantly greater cross sectional or internal marginal discrepancies than the other two techniques (p < 0.05). Externally, the shoulder porcelains followed the facial rounding of the stone die; thus porcelain marginal roundings can be manifested as either negative roundings or underextensions and positive roundings or overextensions. The lack of marginal sharpness of porcelain facial margins may be influenced more by the die material rather than by the marginal porcelain or the technique. C1 WILFORD HALL USAF MED CTR,SGDP,LACKLAND AFB,TX 78236. USAF,DENT INVEST SERV,BROOKS AFB,TX 78235. UNIV TEXAS,HLTH SCI CTR,DEPT RESTORAT DENT,SAN ANTONIO,TX 78284. NR 23 TC 13 Z9 14 U1 0 U2 1 PU MOSBY-YEAR BOOK INC PI ST LOUIS PA 11830 WESTLINE INDUSTRIAL DR, ST LOUIS, MO 63146-3318 SN 0022-3913 J9 J PROSTHET DENT JI J. Prosthet. Dent. PD JAN PY 1993 VL 69 IS 1 BP 19 EP 27 DI 10.1016/0022-3913(93)90234-F PG 9 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA KF761 UT WOS:A1993KF76100005 PM 8455163 ER PT J AU MILLS, SE KUEHNE, JC BRADLEY, DV AF MILLS, SE KUEHNE, JC BRADLEY, DV TI BACTERIOLOGICAL ANALYSIS OF HIGH-SPEED HANDPIECE TURBINES SO JOURNAL OF THE AMERICAN DENTAL ASSOCIATION LA English DT Article ID CONTAMINATION AB The microbial contamination of handpiece turbines was examined clinically. In 20 handpieces, no bacterial growth was found on any culture from an autoclaved or non-autoclaved handpiece group. But growth occurred in the positive control inoculated with fresh whole human saliva. An adjunctive investigation with saliva substitute showed that oral fluids can contaminate handpiece turbines during simulated clinical treatment. C1 USAF,DENT INVEST SERV,ARMSTRONG LAB,AOCD,BROOKS AFB,TX 78235. WILFORD HALL USAF MED CTR,DIV BIOL SCI,CLIN INVEST DIRECTORATE,LACKLAND AFB,TX 78236. USN,DENT RES INST DETACHMENT,SAN ANTONIO,TX. ARMSTRONG LAB,AOCD,BROOKS AFB,TX. NR 7 TC 5 Z9 5 U1 0 U2 0 PU AMER DENTAL ASSN PI CHICAGO PA 211 E CHICAGO AVE, CHICAGO, IL 60611 SN 0002-8177 J9 J AM DENT ASSOC JI J. Am. Dent. Assoc. PD JAN PY 1993 VL 124 IS 1 BP 59 EP 62 PG 4 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA KF876 UT WOS:A1993KF87600011 PM 8445143 ER PT J AU MILLS, JL FUJITANI, RM TAYLOR, SM GEWERTZ, BL BERKOWITZ, HD ABBOTT, WM DONALDSON, MC AF MILLS, JL FUJITANI, RM TAYLOR, SM GEWERTZ, BL BERKOWITZ, HD ABBOTT, WM DONALDSON, MC TI THE CHARACTERISTICS AND ANATOMIC DISTRIBUTION OF LESIONS THAT CAUSE REVERSED VEIN GRAFT FAILURE - A 5-YEAR PROSPECTIVE-STUDY SO JOURNAL OF VASCULAR SURGERY LA English DT Article; Proceedings Paper CT 46TH ANNUAL MEETING OF THE SOC FOR VASCULAR SURGERY CY JUN 08-09, 1992 CL CHICAGO, IL SP SOC VASC SURG ID BYPASS GRAFTS; FEMOROPOPLITEAL RECONSTRUCTIONS; MANAGEMENT; PATENCY; COMPLICATIONS; SURVEILLANCE; DURABILITY AB Purpose: The cause of vein graft failure in the intermediate postoperative period (3 to 18 months) has not been well defined. To delineate the incidence, characteristics, and anatomic distribution of lesions that cause graft failure in this critical interval, 227 consecutive infrainguinal reversed vein grafts (IRVGs) constructed at a single institution from July 1986 to December 1991 were prospectively entered into a duplex scan surveillance protocol. Methods: Duplex surveillance with arteriographic confirmation identified 29 patent, hemodynamically failing IRVGs during a mean follow-up of 22 months (range 1 to 64 months). An additional 18 grafts thrombosed before detection of any underlying abnormality; thrombolytic therapy and repeat operation uncovered the cause of occlusion in 12 of these grafts. The cause of graft failure (failing as well as failed) was therefore clear in 41 (87.2%) of 47 instances. Results. The causes of failure were intrinsic graft stenosis (n = 28; 59.6%), inflow failure (n = 6; 12.8%), outflow failure (n = 4; 8.5%), muscle entrapment (n = 2; 4.3%), and hypercoagulable state (n = 2; 4.3%). The most common intrinsic graft lesion was focal intimal hyperplasia (18 lesions in 16 grafts) in the juxtaanastomotic position, occurring solely in the vein graft itself. It occurred with equal frequency immediately distal to the proximal anastomosis or proximal to the distal anastomosis. Only rarely (n = 5) did this involve the juxtaanastomotic artery. Focal midgraft valvular stenoses (n = 6) and diffuse myointimal hyperplasia (n = 4) were also detected. The peak incidence of graft failure was 4 to 12 months after operation (70% within 12 months, 80% within 18 months). Conclusions: We conclude that duplex surveillance of IRVGs is warranted by the 21% incidence of potentially remediable graft failure. A significant portion of these failures occur during the intermediate postoperative period (3 to 18 months), usually as a result of focal intrinsic vein graft lesions. With reversed vein conduits, these lesions arise predominantly in the vein graft itself, in the juxtaanastomotic position. C1 USAF,SGHSG,VASC SURG SECT,LACKLAND AFB,TX 78236. OI Mills, Joseph/0000-0002-4955-4384 NR 31 TC 109 Z9 111 U1 0 U2 0 PU MOSBY-YEAR BOOK INC PI ST LOUIS PA 11830 WESTLINE INDUSTRIAL DR, ST LOUIS, MO 63146-3318 SN 0741-5214 J9 J VASC SURG JI J. Vasc. Surg. PD JAN PY 1993 VL 17 IS 1 BP 195 EP 206 PG 12 WC Surgery; Peripheral Vascular Disease SC Surgery; Cardiovascular System & Cardiology GA KJ325 UT WOS:A1993KJ32500020 PM 8421336 ER PT J AU BELLER, DE JACOBSON, JM MILEY, GH PETRA, M SHABAN, Y AF BELLER, DE JACOBSON, JM MILEY, GH PETRA, M SHABAN, Y TI PARAMETRIC DESIGN STUDY OF A NUCLEAR-PUMPED LASER-DRIVEN INERTIAL CONFINEMENT FUSION POWER-PLANT SO LASER AND PARTICLE BEAMS LA English DT Article; Proceedings Paper CT Specialist Conference on Physics of Nuclear Induced Plasmas and Problems of Nuclear Pumped Lasers (NPL 92) CY MAY 26-29, 1992 CL INST PHYS & POWER ENGN, OBNINSK, RUSSIA HO INST PHYS & POWER ENGN AB In an earlier preliminary design study, we proposed a novel nuclear-pumped laser-driven (NPL) inertial confinement fusion (ICF) power reactor that represents an important variation on the ''neutron feedback'' concept for ICF. This NPL-driven ICF concept also included an advanced, DT-seeded, DHe-3-fueled pellet and magnetic protection of the first wall of the reactor chamber. Advantages that were demonstrated for this approach included increased efficiency for laser-to-target energy coupling, increased efficiency for thermal-to-electric energy conversion, and reduced neutron activation and waste. The coupling efficiency is enhanced because a nuclear-pumped flashlamp is directly pumped by fission fragments from uranium micropellets within the lamp medium. The thermal conversion efficiency is greater because a large fraction of the ICF pellet's fusion yield is in charged ions that can be guided by magnetic fields and converted directly into electrical current. Finally, the fraction of the fusion yield carried by neutrons is significantly reduced in comparison with pure D-T-fueled pellets; thus, neutron-induced activity in the first wall is decreased and safety is increased. The initial study indicated these factors could result in a required driver energy of 5 MJ (vice 10 MJ currently projected) and a pellet gain of only 50 (vice 100 currently projected) for a feasible 1,000-MW(e) power reactor operating with approximately six pellets per second. The current study includes a refined analysis of an NPL-driven ICF power reactor of this type. A cylindrical design for the fission/NPL blanket is selected as a ''natural'' geometry for pumping the NPL. Required enrichments and criticalities are then predicted for the multiplication of the fusion neutron yield needed to pump the NPL. Based upon these results, we report a more detailed parametric study of the efficiencies for converting neutron, X-ray, and plasma yields from advanced ICF pellets into electrical and optical energy flows required in this concept. We also examined breeding tritium in a lithium blanket layer. Results from these studies help define topics and parameter spaces for further research on this unique reactor concept. C1 UNIV ILLINOIS,FUS STUDIES LAB,URBANA,IL 61801. RP BELLER, DE (reprint author), USAF,INST TECHNOL,WRIGHT PATTERSON AFB,OH 45433, USA. NR 9 TC 3 Z9 3 U1 0 U2 2 PU CAMBRIDGE UNIV PRESS PI NEW YORK PA 40 WEST 20TH STREET, NEW YORK, NY 10011-4211 SN 0263-0346 J9 LASER PART BEAMS JI Laser Part. Beams PY 1993 VL 11 IS 3 BP 537 EP 548 PG 12 WC Physics, Applied SC Physics GA MF947 UT WOS:A1993MF94700011 ER PT B AU AGRESTA, DL SCHEPLER, KL SMITH, DJ AF AGRESTA, DL SCHEPLER, KL SMITH, DJ GP IEEE TI COMPARISON OF THE RELATIVE MERITS OF SURFACE-EMITTING VERSUS EDGE-EMITTING SOLID-STATE LASER PUMPS SO LEOS '93 CONFERENCE PROCEEDINGS: IEEE LASERS AND ELECTRO-OPTICS SOCIETY 1993 ANNUAL MEETING LA English DT Proceedings Paper CT 6th Annual Meeting of the IEEE Lasers-and-Electro-Optics-Society (LEOS 93) CY NOV 15-18, 1993 CL SAN JOSE CONVENT CTR, SAN JOSE, CA SP IEEE, LASERS & ELECTRO OPT SOC HO SAN JOSE CONVENT CTR C1 USAF,WRIGHT AERONAUT LABS,SOLID STATE ELECTR DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. OI Schepler, Kenneth/0000-0001-9658-2305 NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1263-5 J9 IEEE LEOS ANN MTG PY 1993 BP 38 EP 39 PG 2 WC Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BA47C UT WOS:A1993BA47C00015 ER PT B AU CLAYTON, CM AF CLAYTON, CM GP IEEE TI APPLICATIONS OF NONLINEAR OPTICS SO LEOS '93 CONFERENCE PROCEEDINGS: IEEE LASERS AND ELECTRO-OPTICS SOCIETY 1993 ANNUAL MEETING LA English DT Proceedings Paper CT 6th Annual Meeting of the IEEE Lasers-and-Electro-Optics-Society (LEOS 93) CY NOV 15-18, 1993 CL SAN JOSE CONVENT CTR, SAN JOSE, CA SP IEEE, LASERS & ELECTRO OPT SOC HO SAN JOSE CONVENT CTR C1 USAF,PHILLIPS LAB,NONLINEAR OPT CTR TECHNOL,PL LIDN,KIRTLAND AFB,NM 87117. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1263-5 J9 IEEE LEOS ANN MTG PY 1993 BP 102 EP 103 PG 2 WC Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BA47C UT WOS:A1993BA47C00044 ER PT J AU CAVANAH, SFW DONS, RF AF CAVANAH, SFW DONS, RF TI PARTIAL 3-BETA-HYDROXYSTEROID DEHYDROGENASE-DEFICIENCY PRESENTING AS NEW-ONSET GYNECOMASTIA IN A EUGONADAL ADULT MALE SO METABOLISM-CLINICAL AND EXPERIMENTAL LA English DT Article ID ADRENAL-HYPERPLASIA; WOMEN; HIRSUTISM C1 USAF,WILFORD HALL MED CTR,DEPT MED,ENDOCRINOL SECT,LACKLAND AFB,TX 78236. NR 8 TC 3 Z9 3 U1 0 U2 0 PU W B SAUNDERS CO PI PHILADELPHIA PA INDEPENDENCE SQUARE WEST CURTIS CENTER, STE 300, PHILADELPHIA, PA 19106-3399 SN 0026-0495 J9 METABOLISM JI Metab.-Clin. Exp. PD JAN PY 1993 VL 42 IS 1 BP 65 EP 68 DI 10.1016/0026-0495(93)90173-L PG 4 WC Endocrinology & Metabolism SC Endocrinology & Metabolism GA KF999 UT WOS:A1993KF99900011 PM 8446050 ER PT J AU NIEMTZOW, RC AF NIEMTZOW, RC TI LOUD NOISE AND PREGNANCY SO MILITARY MEDICINE LA English DT Article AB Whether loud noise is harmful to the developing fetus and warrants removal of the pregnant woman from exposure remains ambiguous. The role of noise attenuation in utero in determining risk is discussed in this review. Reports in the medical literature have been frequently found to have confounders for human fetal development. Animal noise data are presented and their cautious extrapolation to humans is recommended. In summary, pregnant women should not unnecessarily be removed from the work force, and the Aeromedical Council may wish to establish policy for pregnant workers exposed to hazardous noise. RP NIEMTZOW, RC (reprint author), 27TH MED GRP,HOSP SERV,CANNON AFB,NM 88103, USA. NR 0 TC 6 Z9 7 U1 1 U2 2 PU ASSN MILITARY SURG US PI BETHESDA PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 SN 0026-4075 J9 MIL MED JI Milit. Med. PD JAN PY 1993 VL 158 IS 1 BP 10 EP 12 PG 3 WC Medicine, General & Internal SC General & Internal Medicine GA KH785 UT WOS:A1993KH78500009 PM 8437733 ER PT J AU CHAN, ED AF CHAN, ED TI REYES-SYNDROME IN A YOUNG-ADULT SO MILITARY MEDICINE LA English DT Article AB Reye's syndrome (RS), originally known by the more descriptive name ''encephalopathy With fatty degeneration of the viscera,'' was first described in children and is still seen mostly in them. However, there have been a few case reports of adult Reye's Syndrome (ARS) since the mid-1970s. The following report is a case of ARS in a previously healthy 26-year-old woman. Although the clinical description and the pathophysiology are well known in RS, the etiology and the pathogenesis are still far from clear. From available evidence a multifactorial cause seems likely, encompassing genetic susceptibility, environmental factors, and the convincing role of aspirin. Moreover, as there is increasing awareness of metabolic mimics, questions arise about the validity of some of the diagnoses of RS, even in Reye's original cases. RP CHAN, ED (reprint author), USAF,ACAD HOSP,INTERNAL MED CLIN,COLORADO SPRINGS,CO 80840, USA. NR 0 TC 2 Z9 2 U1 0 U2 0 PU ASSN MILITARY SURG US PI BETHESDA PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 SN 0026-4075 J9 MIL MED JI Milit. Med. PD JAN PY 1993 VL 158 IS 1 BP 65 EP 68 PG 4 WC Medicine, General & Internal SC General & Internal Medicine GA KH785 UT WOS:A1993KH78500023 PM 8437745 ER PT J AU BUNNING, TJ KLEI, HE SAMULSKI, ET ADAMS, WW CRANE, RL AF BUNNING, TJ KLEI, HE SAMULSKI, ET ADAMS, WW CRANE, RL TI CYCLIC VERSUS LINEAR SILOXANE LIQUID-CRYSTALS - PHASE-BEHAVIOR AND X-RAY-DIFFRACTION RESULTS SO MOLECULAR CRYSTALS AND LIQUID CRYSTALS LA English DT Article DE LIQUID CRYSTAL; CHOLESTERIC; CYCLIC SILOXANE; X-RAY DIFFRACTION ID POLYMERS; PECULIARITIES; POLYSILOXANES AB The phase behavior of cyclic and linear polysiloxanes containing biphenyl-4-allyloxybenzoate and cholesteryl-4-allyloxybenzoate mesogens is reported. The presence of the cholesterol-based mesogen was observed to induce layered packing structures for both linear and cyclic siloxane backbones. Differences in the mesophase behavior are discussed with respect to composition and type of siloxane. Small differences in the thermal transitions of cyclic and linear compounds containing the same composition of mesogens were observed. X-ray diffraction results are used to confirm the effect of composition on previously proposed packing models. Differences in the reflection spacings and intensity are discussed with regard to composition, temperature, and type of siloxane. Orientational differences between backbone type observed in aligned fibers are also discussed. C1 UNIV CONNECTICUT,DEPT CHEM ENGN,STORRS,CT 06268. UNIV N CAROLINA,DEPT CHEM,CHAPEL HILL,NC 27599. RP BUNNING, TJ (reprint author), WRIGHT LAB,WL MLPJ,WRIGHT PATTERSON AFB,OH 45433, USA. RI Adams, Wade/A-7305-2010 NR 33 TC 30 Z9 30 U1 1 U2 3 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0140-6566 J9 MOL CRYST LIQ CRYST PY 1993 VL 231 BP 163 EP 174 DI 10.1080/10587259308032502 PG 12 WC Crystallography SC Crystallography GA LF830 UT WOS:A1993LF83000015 ER PT J AU BIGGERS, RR RISH, JW FULLER, R AF BIGGERS, RR RISH, JW FULLER, R TI HEAT-TRANSPORT THROUGH MBBA DUE TO INDUCED ELECTROHYDRODYNAMIC MOTION SO MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS LA English DT Article DE APPARENT THERMAL CONDUCTIVITY; NEMATIC LIQUID CRYSTAL; ELECTROHYDRODYNAMIC MOTION; JOULE HEATING; IONIC DOUBLE LAYER ID HYDRODYNAMIC INSTABILITIES; LIQUID-CRYSTALS; ELECTRIC-FIELDS AB Turbulent electrohydrodynamic (EHD) motion occurs in the liquid crystal MBBA [p-methoxybenzylidene p-(n-butyl)aniline] when subjected to large AC (sine wave) voltages. The onset of EHD motion substantially increases the transport of heat across a cell encapsulating the liquid crystal. This observed increase in heat transfer, or ''heat valve effect,'' can be characterized by an ''apparent'' thermal conductivity k(a) of the liquid crystal. The magnitude of the increase in k(a) is a strong function of frequency, temperature, voltage, and the liquid-crystal phase. This k(a) is actually a measure of the EHD motion within the cell. Structure in the k(a) versus frequency curves indicates possible transitions in flow behavior. Internal heating also occurs within the liquid crystal and is shown to vary in strength with frequency, temperature, and applied voltage. Variations in the usual power factor normally associated with dielectric heating suggest that ionic double layers are formed below some critical frequency. C1 COASTAL SYST STN,PANAMA CITY,FL 32407. RP BIGGERS, RR (reprint author), WRIGHT LAB,MLPO,WRIGHT PATTERSON AFB,OH 45433, USA. NR 23 TC 1 Z9 1 U1 0 U2 3 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 1058-725X J9 MOL CRYST LIQ CRYS A JI Mol. Cryst. Liq. Cryst. Sci. Technol. Sect. A-Mol. Cryst. Liq. Cryst. PY 1993 VL 237 BP 351 EP 376 DI 10.1080/10587259308030149 PG 26 WC Crystallography SC Crystallography GA MN008 UT WOS:A1993MN00800032 ER PT S AU LIMBAUGH, CC BROWN, DG AF LIMBAUGH, CC BROWN, DG BE Boutier, A TI CONSIDERATIONS FOR THE APPLICATION OF THE INFRARED EMISSION ABSORPTION TECHNIQUE TO HYPERSONIC PROPULSION DIAGNOSTICS SO NEW TRENDS IN INSTRUMENTATION FOR HYPERSONIC RESEARCH SE NATO ADVANCED SCIENCE INSTITUTES SERIES, SERIES E, APPLIED SCIENCES LA English DT Proceedings Paper CT NATO Advanced Research Workshop on New Trends in Instrumentation for Hypersonic Research CY APR 27-MAY 01, 1992 CL ONERA LE FAUGA MAUZAC CTR, FRANCE SP NATO HO ONERA LE FAUGA MAUZAC CTR C1 SVERDRUP TECHNOL INC,ARNOLD ENGN DEV CTR GRP,ARNOLD AFB,TN 37389. NR 0 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0168-132X BN 0-7923-2024-7 J9 NATO ADV SCI INST SE PY 1993 VL 224 BP 151 EP 160 PG 10 WC Engineering, Aerospace; Engineering, Mechanical; Instruments & Instrumentation; Mechanics; Spectroscopy SC Engineering; Instruments & Instrumentation; Mechanics; Spectroscopy GA BC72S UT WOS:A1993BC72S00013 ER PT S AU MCGREGOR, WH HOWARD, RP AF MCGREGOR, WH HOWARD, RP BE Boutier, A TI MOLECULAR ELECTRONIC RESONANCE STATE TECHNIQUES SO NEW TRENDS IN INSTRUMENTATION FOR HYPERSONIC RESEARCH SE NATO ADVANCED SCIENCE INSTITUTES SERIES, SERIES E, APPLIED SCIENCES LA English DT Proceedings Paper CT NATO Advanced Research Workshop on New Trends in Instrumentation for Hypersonic Research CY APR 27-MAY 01, 1992 CL ONERA LE FAUGA MAUZAC CTR, FRANCE SP NATO HO ONERA LE FAUGA MAUZAC CTR C1 SVERDRUP TECHNOL INC,ARNOLD ENGN DEV CTR GRP,ARNOLD AFB,TN 37389. NR 0 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0168-132X BN 0-7923-2024-7 J9 NATO ADV SCI INST SE PY 1993 VL 224 BP 161 EP 170 PG 10 WC Engineering, Aerospace; Engineering, Mechanical; Instruments & Instrumentation; Mechanics; Spectroscopy SC Engineering; Instruments & Instrumentation; Mechanics; Spectroscopy GA BC72S UT WOS:A1993BC72S00014 ER PT S AU KOHL, RH AF KOHL, RH BE Boutier, A TI LOCAL NON-INTRUSIVE MEASUREMENTS OF THE INLET AND EXHAUST FLOWS IN GROUND TESTING A HYPERSONIC ENGINE SO NEW TRENDS IN INSTRUMENTATION FOR HYPERSONIC RESEARCH SE NATO ADVANCED SCIENCE INSTITUTES SERIES, SERIES E, APPLIED SCIENCES LA English DT Proceedings Paper CT NATO Advanced Research Workshop on New Trends in Instrumentation for Hypersonic Research CY APR 27-MAY 01, 1992 CL ONERA LE FAUGA MAUZAC CTR, FRANCE SP NATO HO ONERA LE FAUGA MAUZAC CTR C1 SVERDRUP TECHNOL INC,AEDC GRP,ARNOLD AFB,TN 37389. NR 0 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0168-132X BN 0-7923-2024-7 J9 NATO ADV SCI INST SE PY 1993 VL 224 BP 171 EP 184 PG 14 WC Engineering, Aerospace; Engineering, Mechanical; Instruments & Instrumentation; Mechanics; Spectroscopy SC Engineering; Instruments & Instrumentation; Mechanics; Spectroscopy GA BC72S UT WOS:A1993BC72S00015 ER PT S AU MATTHEWS, RK AF MATTHEWS, RK BE Boutier, A TI AEROTHERMAL TEST METHODOLOGY AND TECHNIQUES FOR THE DEVELOPMENT OF HYPERSONIC VEHICLES SO NEW TRENDS IN INSTRUMENTATION FOR HYPERSONIC RESEARCH SE NATO ADVANCED SCIENCE INSTITUTES SERIES, SERIES E, APPLIED SCIENCES LA English DT Proceedings Paper CT NATO Advanced Research Workshop on New Trends in Instrumentation for Hypersonic Research CY APR 27-MAY 01, 1992 CL ONERA LE FAUGA MAUZAC CTR, FRANCE SP NATO HO ONERA LE FAUGA MAUZAC CTR C1 CALSPAN CORP,ARNOLD ENGN DEV CTR OPERAT,ARNOLD AFB,TN 37389. NR 0 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0168-132X BN 0-7923-2024-7 J9 NATO ADV SCI INST SE PY 1993 VL 224 BP 461 EP 470 PG 10 WC Engineering, Aerospace; Engineering, Mechanical; Instruments & Instrumentation; Mechanics; Spectroscopy SC Engineering; Instruments & Instrumentation; Mechanics; Spectroscopy GA BC72S UT WOS:A1993BC72S00041 ER PT S AU COOK, BW LUCAS, MJ AF COOK, BW LUCAS, MJ BE Hubbard, HH TI A REVIEW OF AIR-FORCE POLICY AND NOISE MODELS PERTAINING TO THE NOISE ENVIRONMENT UNDER LOW-ALTITUDE, HIGH-SPEED TRAINING AREAS SO NOISE-CON 93 PROCEEDINGS - 1993 NATIONAL CONFERENCE ON NOISE CONTROL ENGINEERING: NOISE CONTROL IN AEROACOUSTICS SE NOISE-CON PROCEEDINGS LA English DT Proceedings Paper CT 1993 National Conference on Noise Control Engineering: Noise Control in Aeroacoustics CY MAY 02-05, 1993 CL WILLIAMSBURG, VA SP NASA, LANGLEY RES CTR, INST NOISE CONTROL ENGN C1 USAF,HQ,ACC,CEVA,LANGLEY AFB,VA 23665. NR 0 TC 0 Z9 0 U1 0 U2 0 PU NOISE CONTROL FOUNDATION PI POUGHKEEPSIE PA PO BOX 2469, POUGHKEEPSIE, NY 12603 SN 0736-2935 BN 0-931784-26-3 J9 NOISE CON P PY 1993 BP 373 EP 378 PG 6 WC Acoustics; Engineering, Aerospace SC Acoustics; Engineering GA BB62Z UT WOS:A1993BB62Z00061 ER PT J AU KOST, ER SNYDER, RR SCHWARTZ, LE HANKINS, GDV AF KOST, ER SNYDER, RR SCHWARTZ, LE HANKINS, GDV TI THE LESS THAN OPTIMAL CYTOLOGY - IMPORTANCE IN OBSTETRIC PATIENTS AND IN A ROUTINE GYNECOLOGIC POPULATION SO OBSTETRICS AND GYNECOLOGY LA English DT Article ID CERVICAL SMEARS; BRUSH AB Objective: To determine whether patients with less than optimal Papanicolaou tests constitute a low-risk group for developing subsequent abnormalities and thus do not need early repeat screening. Methods: For the 10-month period October 1989 to August 1990, all screening Papanicolaou tests were classified by the 1988 Bethesda System. Tests designated as less than optimal solely on the basis of lack of an endocervical component were the subject of the study. Prenatal patients with less than optimal tests had repeat tests at the postpartum visit (delayed-repeat group), whereas gynecologic less than optimal tests were repeated within 4 weeks (early-repeat group). The frequency of cytologic abnormalities in our routine gynecologic population was compared with that for both the delayed- and early-repeat testing groups. Results: The less than optimal rate in obstetric patients was 10.2% (153 of 1492), which was significantly higher than the 5.6% rate (473 of 8411) in the routine gynecologic population (P < .0001). The rates of dysplasia or combined abnormalities (dysplasia, human papillomavirus, or atypia) in the delayed-repeat group did not differ significantly from those in the routine gynecologic population (P = .69 and P = .33, respectively). However, the rates of dysplasia or combined abnormalities were significantly lower in the early-repeat group than in the routine gynecologic population (P = .02 and P = .003, respectively). Conclusions: Less than optimal cervical cytologies occurred almost twice as often in obstetric as in gynecologic patients. Prenatal less than optimal test results were not associated with important cervical pathology, and repeat testing may safely be deferred until postpartum. In addition, early repeat testing in gynecologic patients is a low-yield procedure. C1 WILFORD HALL USAF MED CTR,DEPT OBSTET & GYNECOL,LACKLAND AFB,TX 78236. NR 10 TC 10 Z9 10 U1 0 U2 0 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 0029-7844 J9 OBSTET GYNECOL JI Obstet. Gynecol. PD JAN PY 1993 VL 81 IS 1 BP 127 EP 130 PG 4 WC Obstetrics & Gynecology SC Obstetrics & Gynecology GA KE011 UT WOS:A1993KE01100026 PM 8416447 ER PT B AU OHARE, JE BIRD, CM MANSFIELD, JH HAVENER, AG AF OHARE, JE BIRD, CM MANSFIELD, JH HAVENER, AG BE Cha, SS Trolinger, JD TI DEVELOPMENT OF AN ORTHOGONAL AXES HOLOGRAPHIC FLOW MEASUREMENT SYSTEM FOR AERO-OPTICS APPLICATIONS SO OPTICAL DIAGNOSTICS IN FLUID AND THERMAL FLOW SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Optical Diagnostics in Fluid and Thermal Flow CY JUL 14-16, 1993 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 CALSPAN CORP,AEDC OPERAT,ARNOLD ENGN DEV CTR,ARNOLD AFB,TN 37389. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1254-6 J9 P SOC PHOTO-OPT INS PY 1993 VL 2005 BP 38 EP 49 DI 10.1117/12.163735 PG 12 WC Engineering, Mechanical; Instruments & Instrumentation; Optics SC Engineering; Instruments & Instrumentation; Optics GA BZ74U UT WOS:A1993BZ74U00004 ER PT B AU BROWN, JL AF BROWN, JL BE Stover, JC TI PREPARING SAMPLES FOR SCATTERING MEASUREMENTS - A CLEANING STUDY .2. SO OPTICAL SCATTERING: APPLICATIONS, MEASUREMENT, AND THEORY II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Optical Scattering: Applications, Measurement, and Theory II CY JUL 15-16, 1993 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,WRIGHT LAB,ELOT,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1244-9 J9 P SOC PHOTO-OPT INS PY 1993 VL 1995 BP 80 EP 91 PG 12 WC Instruments & Instrumentation; Optics SC Instruments & Instrumentation; Optics GA BZ81T UT WOS:A1993BZ81T00008 ER PT J AU ARRIAGA, MA LUXFORD, WM AF ARRIAGA, MA LUXFORD, WM TI IMPEDANCE AUDIOMETRY AND IATROGENIC HEARING-LOSS SO OTOLARYNGOLOGY-HEAD AND NECK SURGERY LA English DT Article C1 HOUSE EAR CLIN & HOUSE EAR INST,2100 W 3RD ST,LOS ANGELES,CA 90057. WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. NR 8 TC 9 Z9 10 U1 0 U2 0 PU MOSBY-YEAR BOOK INC PI ST LOUIS PA 11830 WESTLINE INDUSTRIAL DR, ST LOUIS, MO 63146-3318 SN 0194-5998 J9 OTOLARYNG HEAD NECK JI Otolaryngol. Head Neck Surg. PD JAN PY 1993 VL 108 IS 1 BP 70 EP 72 PG 3 WC Otorhinolaryngology; Surgery SC Otorhinolaryngology; Surgery GA KK479 UT WOS:A1993KK47900009 PM 8437876 ER PT S AU RASZKA, WV ROBB, ML FOWLER, AK ROBERTS, CR WAECKER, NJ ASCHER, DP MORIARTY, RA GOLDBERG, D FISCHER, GW AF RASZKA, WV ROBB, ML FOWLER, AK ROBERTS, CR WAECKER, NJ ASCHER, DP MORIARTY, RA GOLDBERG, D FISCHER, GW BE Lyman, WD Rubinstein, A TI DIAGNOSIS AND QUANTITATION OF HIV-1 INFECTION IN INFANTS AND CHILDREN BY WHOLE-BLOOD CULTURE SO PEDIATRIC AIDS: CLINICAL, PATHOLOGIC, AND BASIC SCIENCE PERSPECTIVES SE ANNALS OF THE NEW YORK ACADEMY OF SCIENCES LA English DT Article; Proceedings Paper CT Conference on Pediatric Aids: Clinical, Pathologic, and Basic Science Perspectives CY NOV 18-21, 1992 CL WASHINGTON, DC SP NEW YORK ACAD SCI C1 WALTER REED ARMY INST RES, DEPT RETROVIRAL RES, ROCKVILLE, MD 20850 USA. UNIFORMED SERV UNIV HLTH SCI, DEPT PEDIAT, BETHESDA, MD 20814 USA. SRA LABS, ROCKVILLE, MD 20850 USA. USN, MED CTR, DEPT PEDIAT, SAN DIEGO, CA 92134 USA. WILFORD HALL USAF MED CTR, DEPT PEDIAT, SAN ANTONIO, TX 78236 USA. NATL NAVAL MED CTR, DEPT PEDIAT, BETHESDA, MD 20889 USA. NR 3 TC 2 Z9 2 U1 0 U2 0 PU NEW YORK ACAD SCIENCES PI NEW YORK PA 2 EAST 63RD ST, NEW YORK, NY 10021 SN 0077-8923 BN 0-89766-791-3 J9 ANN NY ACAD SCI JI Ann.NY Acad.Sci. PY 1993 VL 693 BP 258 EP 261 DI 10.1111/j.1749-6632.1993.tb26276.x PG 4 WC Immunology; Multidisciplinary Sciences; Pathology; Pediatrics; Virology SC Immunology; Science & Technology - Other Topics; Pathology; Pediatrics; Virology GA BZ45X UT WOS:A1993BZ45X00027 PM 8267272 ER PT B AU MCHUGH, MP KEYSER, PT AF MCHUGH, MP KEYSER, PT BE TranThanhVan, J Damour, T Hinds, E Wilkerson, J TI TEST OF COHERENT NEUTRINO DETECTION USING SAPPHIRE CRYSTALS SO PERSPECTIVES IN NEUTRINOS ATOMIC PHYSICS AND GRAVITATION SE MORIOND WORKSHOPS LA English DT Proceedings Paper CT XXVIIIth Rencontre De Moriond on Perspectives in Neutrinos Atomic Physics and Gravitation CY JAN 30-FEB 06, 1993 CL VILLARS OLLON, SWITZERLAND SP COMMISS EUROPEAN COMMUNITIES, CNRS, CEA C1 USAF,PHILLIPS LAB,GPEG,BEDFORD,MA 01571. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-136-6 J9 MORIOND WOR PY 1993 BP 177 EP 183 PG 7 WC Astronomy & Astrophysics; Physics, Atomic, Molecular & Chemical; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA BB19U UT WOS:A1993BB19U00019 ER PT B AU GRYCEWICZ, TJ AF GRYCEWICZ, TJ BE Horner, JL Javidi, B Kowel, ST Miceli, WJ TI APPLYING TIME MODULATION TO OPTICAL JOINT TRANSFORM CORRELATORS TO IMPROVE TARGET DETECTION IN HIGH CLUTTER MULTIPLE - TARGET ENVIRONMENTS SO PHOTONICS FOR PROCESSORS, NEURAL NETWORKS, AND MEMORIES SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Photonics for Processors, Neural Networks, and Memories CY JUL 12-15, 1993 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,ROME LAB,BEDFORD,MA 01731. NR 0 TC 1 Z9 1 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1275-9 J9 P SOC PHOTO-OPT INS PY 1993 VL 2026 BP 161 EP 166 DI 10.1117/12.163569 PG 6 WC Computer Science, Artificial Intelligence; Optics SC Computer Science; Optics GA BZ81K UT WOS:A1993BZ81K00016 ER PT B AU KEEFER, CW WARD, MJ AF KEEFER, CW WARD, MJ BE Horner, JL Javidi, B Kowel, ST Miceli, WJ TI MODIFIED INTERFEROMETRIC IN-LINE TIME-INTEGRATING CORRELATOR SO PHOTONICS FOR PROCESSORS, NEURAL NETWORKS, AND MEMORIES SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Photonics for Processors, Neural Networks, and Memories CY JUL 12-15, 1993 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,ROME LAB,GRIFFISS AFB,NY 13441. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1275-9 J9 P SOC PHOTO-OPT INS PY 1993 VL 2026 BP 177 EP 184 DI 10.1117/12.163571 PG 8 WC Computer Science, Artificial Intelligence; Optics SC Computer Science; Optics GA BZ81K UT WOS:A1993BZ81K00018 ER PT B AU FRIEDMAN, L SOREF, RA AF FRIEDMAN, L SOREF, RA BE Beltram, F Gornik, E TI ELECTROOPTICAL MODULATION IN SILICON-SILICON GERMANIUM QUANTUM-WELL STRUCTURES SO PHYSICAL CONCEPTS AND MATERIALS FOR NOVEL OPTOELECTRONIC DEVICE APPLICATIONS II: INTERNATIONAL SYMPOSIUM SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT International Symposium on Physical Concepts and Materials for Novel Optoelectronic Device Application 2 CY MAY 24-27, 1993 CL TRIESTE, ITALY SP EUROPEAN OPT SOC, INT CTR SCI & HIGH TECHNOL, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 USAF,ROME LAB,BEDFORD,MA 01731. RI Beltram, Fabio/F-2920-2013 OI Beltram, Fabio/0000-0002-6081-436X NR 0 TC 0 Z9 0 U1 0 U2 1 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1234-1 J9 P SOC PHOTO-OPT INS PY 1993 VL 1985 BP 341 EP 349 DI 10.1117/12.162773 PG 9 WC Materials Science, Multidisciplinary; Optics; Physics, Applied SC Materials Science; Optics; Physics GA BZ62U UT WOS:A1993BZ62U00038 ER PT J AU LANSKY, D AF LANSKY, D TI IVD - ELIMINATING TANK ELECTROPLATING SOLUTIONS FOR CADMIUM SO PLATING AND SURFACE FINISHING LA English DT Article AB For at least 50 years, the U.S. Air Force has used cadmium metal coatings to prevent corrosion on aircraft parts. But cadmium is a suspected carcinogen and, the process used to apply the metal-tank electroplating-has created 50 years of hazardous waste. But now, there is an alternative. RP LANSKY, D (reprint author), USAF,MAT COMMAND,DIV PUBL AFFAIRS OFF,WRIGHT PATTERSON AFB,OH 45433, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER ELECTROPLATERS SOC INC PI ORLANDO PA 12644 RESEARCH PKWY, ORLANDO, FL 32826-3298 SN 0360-3164 J9 PLAT SURF FINISH JI Plat. Surf. Finish. PD JAN PY 1993 VL 80 IS 1 BP 20 EP 21 PG 2 WC Metallurgy & Metallurgical Engineering; Materials Science, Coatings & Films SC Metallurgy & Metallurgical Engineering; Materials Science GA KG724 UT WOS:A1993KG72400004 ER PT J AU DOTRONG, M DOTRONG, MH EVERS, RC AF DOTRONG, M DOTRONG, MH EVERS, RC TI GRAFT-COPOLYMERS OF RIGID-ROD POLYMERS AS SINGLE-COMPONENT MOLECULAR COMPOSITES SO POLYMER LA English DT Article; Proceedings Paper CT SYMP ON ADVANCES IN POLYMER MATRIX-BASED COMPOSITES, AT THE MEETING OF THE AMERICAN CHEMICAL SOC CY APR, 1992 CL SAN FRANCISCO, CA SP AMER CHEM SOC, DIV POLYM CHEM, AMER CHEM SOC, DIV POLYM MAT, SCI & ENGN DE GRAFT COPOLYMERS; RIGID-ROD POLYMERS; POLY(P-PHENYLENEBENZOBISTHIAZOLE); POLY(ETHER KETONE); MOLECULAR COMPOSITES; THERMAL STABILITY AB End-capped poly(p-phenylenebenzobisthiazole) structures containing randomly distributed 2,6-dimethylphenoxy pendants along the rigid-rod backbone were synthesized through the copolycondensation of 2,5-diamino-1,4-benzenedithiol dihydrochloride with terephthaloyl chloride and 2-(2,6-dimethylphenoxy)terephthaloyl chloride in polyphosphoric acid. End-capping was accomplished through the addition of 2,4,6-trimethylbenzoic acid to the reaction mixture. Through control of reaction stoichiometry, copolymer intrinsic viscosities were limited to 8.6 dl g-1 (methanesulphonic acid, 30-degrees-C) or less. The 2,6-dimethylphenoxy moiety served as a graft site for grafting reactions with 3-phenoxybenzoic acid in a methanesulphonic acid/phosphorus pentoxide medium. Incorporation of the resultant thermoplastic poly(ether ketone) side-chains into the rigid-rod poly(p-phenylenebenzobisthiazole) structures was substantiated through infra-red spectroscopy and analysis of model reactions. C1 WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. RP DOTRONG, M (reprint author), UNIV DAYTON,RES INST,DAYTON,OH 45469, USA. NR 11 TC 15 Z9 15 U1 2 U2 6 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0032-3861 J9 POLYMER JI Polymer PY 1993 VL 34 IS 4 BP 726 EP 730 DI 10.1016/0032-3861(93)90354-D PG 5 WC Polymer Science SC Polymer Science GA KN323 UT WOS:A1993KN32300009 ER PT J AU VAKIL, UM WANG, CS DOTRONG, MH DOTRONG, M LEE, CYC EVERS, RC AF VAKIL, UM WANG, CS DOTRONG, MH DOTRONG, M LEE, CYC EVERS, RC TI INFLUENCE OF MOLECULAR-STRUCTURE ON PROCESSING CONDITIONS AND MECHANICAL-PROPERTIES OF GRAFT RIGID-ROD COPOLYMERS SO POLYMER LA English DT Article; Proceedings Paper CT SYMP ON ADVANCES IN POLYMER MATRIX-BASED COMPOSITES, AT THE MEETING OF THE AMERICAN CHEMICAL SOC CY APR, 1992 CL SAN FRANCISCO, CA SP AMER CHEM SOC, DIV POLYM CHEM, AMER CHEM SOC, DIV POLYM MAT, SCI & ENGN DE MOLECULAR COMPOSITES; GRAFT COPOLYMERS; RIGID-ROD BACKBONE; POLY(P-PHENYLENE BENZOBISTHIAZOLE); FLEXIBLE SIDE-CHAINS; POLY(ETHER KETONE); SECONDARY TRANSITION ID PHASE-SEPARATION; COMPOSITE AB Dynamic and tensile mechanical properties of a series of graft rigid-rod copolymers were studied. The copolymers were single-component rigid-rod molecular composites consisting of a rigid-rod poly(p-phenylenebenzobisthiazole) backbone grafted with flexible-coil poly(oxy-1,3-phenylenecarbonyl-1,4-phenylene) side-chains. Dynamic storage moduli of the graft copolymers showed three characteristic regions: an initial plateau region, a transition zone and a second plateau region. The peak transition temperatures of the dynamic loss modulus curves were independent of the rigid-rod backbone length but decreased with increasing side-chain lengths, suggesting that the transition was a secondary transition associated with localized motions of the flexible side-chains. The graft rigid-rod copolymers were compression moulded into tensile test specimens at temperatures above their peak transition temperatures. Although the specimens appeared well consolidated as evidenced by the scanning electron micrographs of tensile-fractured surfaces, their tensile properties were relatively poor compared with those reported for rigid-rod molecular composite blends. The significance of poor tensile properties is discussed based on the structural characteristics of the graft copolymers, namely the length of rigid-rod backbone, the frequency of graft sites, and the average contour length of flexible-coil side-chains. C1 UNIV DAYTON,RES INST,DAYTON,OH 45469. ADTECH SYST RES INC,DAYTON,OH 45432. WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. NR 20 TC 10 Z9 10 U1 0 U2 2 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0032-3861 J9 POLYMER JI Polymer PY 1993 VL 34 IS 4 BP 731 EP 735 DI 10.1016/0032-3861(93)90355-E PG 5 WC Polymer Science SC Polymer Science GA KN323 UT WOS:A1993KN32300010 ER PT J AU BAKER, KN FRATINI, AV RESCH, T KNACHEL, HC ADAMS, WW SOCCI, EP FARMER, BL AF BAKER, KN FRATINI, AV RESCH, T KNACHEL, HC ADAMS, WW SOCCI, EP FARMER, BL TI CRYSTAL-STRUCTURES, PHASE-TRANSITIONS AND ENERGY CALCULATIONS OF POLY(P-PHENYLENE) OLIGOMERS SO POLYMER LA English DT Article DE CRYSTAL STRUCTURE; PHASE TRANSITIONS; OLIGOMER; POLY(P-PHENYLENE); MOLECULAR MECHANICS ID POLY PARA-PHENYLENE; PARA-QUATERPHENYL; SOLID-STATE; POLYPHENYLS; BIPHENYL; POLY(PARA-PHENYLENE); POLYPARAPHENYLENE; TEMPERATURE; ABINITIO; POLYACETYLENE AB The room temperature crystal structures, unit cell dimensions at 110 K and phase transitions of three poly(p-phenylene) oligomers are reported. The structures of p-quinquephenyl (PQP), C30H22, p-sexiphenyl (PSP), C36H26, and p-septiphenyl (PSePtiP), C42H30, each belonging to space group P2(1)/c, are similar to those of shorter oligomers. The unit cell dimensions are a=22.056 angstrom, b=5.581 angstrom, c=8.070 angstrom and beta=97.91-degrees for PQP a=26.241 angstrom, b=5.568 angstrom, c=8.091 angstrom and beta=98.17-degrees for PSP, and a=30.577 angstrom, b=5.547 angstrom, c=8.034 angstrom and beta=100.52-degrees for PSeptiP. The a axis increases with molecular length. The molecules are linear and planar in all three structures. The herringbone nature of the packing is similar for PQP and PSeptiP, while a considerably greater tilt occurs in PSP. At 110 K, the unit cell parameters b and c are approximately doubled while a remains nearly the same as in the room temperature cell. A time-dependent solid state transition is observed for PQP, PSP and PSeptiP when crystals are cooled to 110 K. At elevated temperatures, thermal measurements indicate the oligomers to be thermotropic liquid crystals. The crystal-smectic transition temperatures are reported for PQP, PSP, PSeptiP and p-octiphenyl (POP), C48H34. The results of a molecular mechanics study on the conformation and packing of PSP are also presented. The competition between intramolecular forces (such as ortho hydrogen repulsions) and intermolecular crystal packing forces was examined in particular. Molecular mechanics calculations predict non-planar conformations in isolated polyphenyls, implying that conjugation between phenyl rings is insufficient to overcome ortho hydrogen repulsions. In a crystalline environment, however, intermolecular forces tend to force a planar conformation. Calculations on arrays of PSP molecules show that changing the phenyl-phenyl torsion angles from the coplanar value increases the total energy of the structure. The most favourable intermolecular interactions between oligomers are achieved for conformations having the phenyl rings coplanar. C1 UNIV VIRGINIA,DEPT ERNAHRUNGSPHYSIOL,CHARLOTTESVILLE,VA 22903. UNIV DAYTON,DEPT CHEM,DAYTON,OH 45469. USAF,WRIGHT AERONAUT LABS,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RI Adams, Wade/A-7305-2010 NR 64 TC 312 Z9 312 U1 1 U2 32 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0032-3861 J9 POLYMER JI Polymer PY 1993 VL 34 IS 8 BP 1571 EP 1587 DI 10.1016/0032-3861(93)90313-Y PG 17 WC Polymer Science SC Polymer Science GA KZ004 UT WOS:A1993KZ00400001 ER PT J AU FARMER, BL CHAPMAN, BR DUDIS, DS ADAMS, WW AF FARMER, BL CHAPMAN, BR DUDIS, DS ADAMS, WW TI MOLECULAR-DYNAMICS OF RIGID-ROD POLYMERS SO POLYMER LA English DT Article DE MOLECULAR DYNAMICS; RIGID ROD POLYMERS; POLYPHENYLENE; PBO; PBZT; PPP; PERSISTENCE LENGTH ID PERDEUTERATED BIPHENYL; INTERNAL-ROTATION; GASEOUS STATE; DERIVATIVES; BARRIER; MODEL; CHAIN AB Molecular dynamics (MD) calculations have been used to study the behaviour of isolated rigid rod molecules of poly(p-phenylene), poly(p-phenylene benzobisthiazole) and poly(p-phenylene benzobisoxazole). The molecular mechanics force field was initially modified to improve agreement between minimized structural geometries and available X-ray data, as well as results from semiempirical molecular orbital calculations. The MD simulations show the molecules to be surprisingly flexible, with changes in end-to-end distances as large as 16%. An examination of the energies (calculated by various methods) associated with out-of-plane bending deformation, suggests that the rigid rod polymers may in fact be even more flexible than the simulations indicate. The results provide rationalizations for the relatively short persistence lengths measured in solution and for bending observed in high-resolution electron micrographs of these materials. C1 USAF,WRIGHT AERONAUT LABS,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. USAF,WRIGHT AERONAUT LABS,MLBP,WRIGHT PATTERSON AFB,OH 45433. USAF,WRIGHT AERONAUT LABS,MLPJ,WRIGHT PATTERSON AFB,OH 45433. RP FARMER, BL (reprint author), UNIV VIRGINIA,DEPT MAT SCI,CHARLOTTESVILLE,VA 22903, USA. RI Adams, Wade/A-7305-2010 NR 49 TC 68 Z9 69 U1 1 U2 8 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0032-3861 J9 POLYMER JI Polymer PY 1993 VL 34 IS 8 BP 1588 EP 1601 DI 10.1016/0032-3861(93)90314-Z PG 14 WC Polymer Science SC Polymer Science GA KZ004 UT WOS:A1993KZ00400002 ER PT J AU HORN, T ADAMS, WW PACHTER, R HAALAND, P AF HORN, T ADAMS, WW PACHTER, R HAALAND, P TI ELECTRONIC-STRUCTURE OF STRAINED POLYMERS .3. SCALED HESSIANS FOR POLYETHYLENE SO POLYMER LA English DT Article DE POLYETHYLENE; ELECTRONIC STRUCTURE; STRAINED POLYMERS ID FORCE-FIELD; MODEL AB Earlier estimates for the Young's modulus of polyethylene based on the AM1 semi-empirical molecular orbital method were 15% larger than the largest experimental value. Neglect of electron correlation in the single determinant wavefunction for polyethylene leads to a Hessian matrix which is too stiff. Here we apply the biased Hessian approach of Dasgupta and Goddard1 to the polyethylene chain at equilibrium and under tensile and compressive strain. The chain modulus is 340 GPa with the biased Hessian, in agreement with extant experimental results. Although the variation of the vibrational spectrum with strain is reduced with biasing, the stress-dependence of vibrational frequencies is unchanged. C1 WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RI Adams, Wade/A-7305-2010 NR 13 TC 7 Z9 7 U1 0 U2 0 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0032-3861 J9 POLYMER JI Polymer PY 1993 VL 34 IS 12 BP 2481 EP 2484 DI 10.1016/0032-3861(93)90575-U PG 4 WC Polymer Science SC Polymer Science GA LJ589 UT WOS:A1993LJ58900003 ER PT B AU BOSSERT, DE AF BOSSERT, DE GP AMER AUTOMAT CONTROL COUNCIL TI A ROOT-LOCUS ANALYSIS OF QUANTITATIVE FEEDBACK THEORY SO PROCEEDINGS OF THE 1993 AMERICAN CONTROL CONFERENCE, VOLS 1-3 LA English DT Proceedings Paper CT 1993 AMERICAN CONTROL CONF CY JUN 02-04, 1993 CL SAN FRANCISCO, CA SP INT FEDERAT AUTOMAT CONTROL, AMER INST AERONAUT & ASTRONAUT, AMER INST CHEM ENGINEERS, ASSOC IRON & STEEL ENGINEERS, AMER SOC MECH ENGINEERS, IEEE, INSTRUMENT SOC AMER, SOC COMP SIMULAT RP BOSSERT, DE (reprint author), USAF ACAD,DEPT AERONAUT,COLORADO SPRINGS,CO 80840, USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU I E E E PI NEW YORK PA NEW YORK BN 0-7803-0860-3 PY 1993 BP 1698 EP 1702 PG 5 WC Engineering, Electrical & Electronic SC Engineering GA BY87D UT WOS:A1993BY87D00378 ER PT B AU QUAN, R STECH, D AF QUAN, R STECH, D GP AMER AUTOMAT CONTROL COUNCIL TI TIME-VARYING PASSIVE VIBRATION ABSORPTION FOR LARGE FLEXIBLE STRUCTURES EQUIPPED WITH FEW INERTIAL REACTION DEVICES SO PROCEEDINGS OF THE 1993 AMERICAN CONTROL CONFERENCE, VOLS 1-3 LA English DT Proceedings Paper CT 1993 AMERICAN CONTROL CONF CY JUN 02-04, 1993 CL SAN FRANCISCO, CA SP INT FEDERAT AUTOMAT CONTROL, AMER INST AERONAUT & ASTRONAUT, AMER INST CHEM ENGINEERS, ASSOC IRON & STEEL ENGINEERS, AMER SOC MECH ENGINEERS, IEEE, INSTRUMENT SOC AMER, SOC COMP SIMULAT RP QUAN, R (reprint author), USAF ACAD,FRANK J SEILER LAB,COLORADO SPRINGS,CO 80840, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA NEW YORK BN 0-7803-0860-3 PY 1993 BP 2099 EP 2103 PG 5 WC Engineering, Electrical & Electronic SC Engineering GA BY87D UT WOS:A1993BY87D00462 ER PT B AU LIOU, LL BAYRAKTAROGLU, B HUANG, CI BARRETTE, J AF LIOU, LL BAYRAKTAROGLU, B HUANG, CI BARRETTE, J BE Jopke, J TI THE EFFECT OF THERMAL SHUNT ON THE CURRENT INSTABILITY OF MULTIPLE-EMITTER-FINGER HETEROJUNCTION BIPOLAR-TRANSISTORS SO PROCEEDINGS OF THE 1993 BIPOLAR/BICOMS CIRCUITS AND TECHNOLOGY MEETING LA English DT Proceedings Paper CT 1993 BIPOLAR/BICOMS Circuits and Technology Meeting (BCTM Proceedings) CY OCT 04-05, 1993 CL MINNEAPOLIS, MN SP IEEE, ELECTRON DEVICES SOC, IEEE, CIRCUITS & SYST SOC, IEEE, TWIN CITY SECT, IEEE C1 WRIGHT LAB,SOLID STATE ELECTR DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 5 Z9 5 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1316-X PY 1993 BP 253 EP 256 PG 4 WC Engineering, Electrical & Electronic SC Engineering GA BZ65F UT WOS:A1993BZ65F00051 ER PT B AU ROUSH, JT MALL, S AF ROUSH, JT MALL, S GP SOC EXPTL MECH TI INVESTIGATION OF METAL-MATRIX COMPOSITE SCS-9/BETA-21S WITH OPEN AND FILLED CIRCULAR NOTCHES SO PROCEEDINGS OF THE 1993 SEM 50TH ANNIVERSARY SPRING CONFERENCE ON EXPERIMENTAL MECHANICS LA English DT Proceedings Paper CT 1993 SEM 50 Anniversary Spring Conference on Experimental Mechanics CY JUN 07-09, 1993 CL DEARBORN, MI SP SOC EXPTL MECH, SLOVENE SOC EXPTL MECH C1 USAF,INST TECHNOL,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC EXPERIMENTAL MECHANICS INC PI BETHEL PA 7 SCHOOL ST, BETHEL, CT 06801 BN 0-912053-43-7 PY 1993 BP 181 EP 190 PG 10 WC Materials Science, Multidisciplinary; Mechanics SC Materials Science; Mechanics GA BA19T UT WOS:A1993BA19T00021 ER PT B AU BLATT, D JOHN, R COKER, D AF BLATT, D JOHN, R COKER, D GP SOC EXPTL MECH TI SINGLE-EDGE NOTCHED SPECIMENS WITH CLAMPED ENDS FOR AUTOMATED CRACK-GROWTH TESTING SO PROCEEDINGS OF THE 1993 SEM 50TH ANNIVERSARY SPRING CONFERENCE ON EXPERIMENTAL MECHANICS LA English DT Proceedings Paper CT 1993 SEM 50 Anniversary Spring Conference on Experimental Mechanics CY JUN 07-09, 1993 CL DEARBORN, MI SP SOC EXPTL MECH, SLOVENE SOC EXPTL MECH C1 WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RI Coker, Demirkan/B-3386-2011 OI Coker, Demirkan/0000-0001-7385-7089 NR 0 TC 1 Z9 1 U1 0 U2 1 PU SOC EXPERIMENTAL MECHANICS INC PI BETHEL PA 7 SCHOOL ST, BETHEL, CT 06801 BN 0-912053-43-7 PY 1993 BP 394 EP 403 PG 10 WC Materials Science, Multidisciplinary; Mechanics SC Materials Science; Mechanics GA BA19T UT WOS:A1993BA19T00041 ER PT S AU GORDON, SC BERDINE, RJ AF GORDON, SC BERDINE, RJ BE Schoen, J TI USING EXPERIMENTAL-DESIGN TECHNIQUES FOR SPACECRAFT CONTROL SIMULATION SO PROCEEDINGS OF THE 1993 SUMMER COMPUTER SIMULATION CONFERENCE SE PROCEEDINGS OF THE SUMMER COMPUTER SIMULATION CONFERENCE LA English DT Proceedings Paper CT 25th Annual Summer Computer Simulation Conference CY JUL 19-21, 1993 CL BOSTON, MA SP SOC COMP SIMULAT C1 USAF ACAD,DEPT MATH SCI,COLORADO SPRINGS,CO 80840. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC COMPUTER SIMULATION INT PI SAN DIEGO PA PO BOX 17900, SAN DIEGO, CA 92177 SN 0094-7474 BN 1-56555-057-9 J9 P SUMM COMP PY 1993 BP 32 EP 37 PG 6 WC Computer Science, Interdisciplinary Applications; Multidisciplinary Sciences SC Computer Science; Science & Technology - Other Topics GA BA23R UT WOS:A1993BA23R00006 ER PT S AU MERRYMAN, PM AF MERRYMAN, PM BE Schoen, J TI USE OF A COMBAT MODEL IN A HUMANITARIAN ASSISTANCE DISASTER RELIEF SCENARIO SO PROCEEDINGS OF THE 1993 SUMMER COMPUTER SIMULATION CONFERENCE SE PROCEEDINGS OF THE SUMMER COMPUTER SIMULATION CONFERENCE LA English DT Proceedings Paper CT 25th Annual Summer Computer Simulation Conference CY JUL 19-21, 1993 CL BOSTON, MA SP SOC COMP SIMULAT C1 USAF,JOINT WARFARE CTR,HURLBURT FIELD,FL 32544. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC COMPUTER SIMULATION INT PI SAN DIEGO PA PO BOX 17900, SAN DIEGO, CA 92177 SN 0094-7474 BN 1-56555-057-9 J9 P SUMM COMP PY 1993 BP 925 EP 930 PG 6 WC Computer Science, Interdisciplinary Applications; Multidisciplinary Sciences SC Computer Science; Science & Technology - Other Topics GA BA23R UT WOS:A1993BA23R00155 ER PT S AU MURAKAMI, A AF MURAKAMI, A BE Schoen, J TI WORLD GEODETIC SYSTEM 1984 (WGS84) SYNTHESIS IN POSITIONING A SENSOR SATELLITE AND A MOVING OBJECT SO PROCEEDINGS OF THE 1993 SUMMER COMPUTER SIMULATION CONFERENCE SE PROCEEDINGS OF THE SUMMER COMPUTER SIMULATION CONFERENCE LA English DT Proceedings Paper CT 25th Annual Summer Computer Simulation Conference CY JUL 19-21, 1993 CL BOSTON, MA SP SOC COMP SIMULAT C1 USAF,SSD CNSS,LAAFB,LOS ANGELES,CA 90009. NR 0 TC 0 Z9 0 U1 1 U2 1 PU SOC COMPUTER SIMULATION INT PI SAN DIEGO PA PO BOX 17900, SAN DIEGO, CA 92177 SN 0094-7474 BN 1-56555-057-9 J9 P SUMM COMP PY 1993 BP 1049 EP 1053 PG 5 WC Computer Science, Interdisciplinary Applications; Multidisciplinary Sciences SC Computer Science; Science & Technology - Other Topics GA BA23R UT WOS:A1993BA23R00175 ER PT B AU LIBBY, EW MAYBECK, PS AF LIBBY, EW MAYBECK, PS GP IEEE TI APPLICATION OF SEQUENCE COMPARISON TECHNIQUES TO MULTISENSOR DATA FUSION AND TARGET RECOGNITION SO PROCEEDINGS OF THE 32ND IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4 LA English DT Proceedings Paper CT 32nd IEEE Conference on Decision and Control CY DEC 15-17, 1993 CL SAN ANTONIO, TX SP IEEE, CONTROL SYST SOC C1 USAF,INST TECHNOL,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1298-8 PY 1993 BP 241 EP 248 DI 10.1109/CDC.1993.325154 PG 8 WC Automation & Control Systems; Engineering, Electrical & Electronic; Operations Research & Management Science; Mathematics, Applied SC Automation & Control Systems; Engineering; Operations Research & Management Science; Mathematics GA BA27F UT WOS:A1993BA27F00048 ER PT B AU MAYBECK, PS HANLON, PD AF MAYBECK, PS HANLON, PD GP IEEE TI PERFORMANCE ENHANCEMENT OF A MULTIPLE MODEL ADAPTIVE ESTIMATOR SO PROCEEDINGS OF THE 32ND IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4 LA English DT Proceedings Paper CT 32nd IEEE Conference on Decision and Control CY DEC 15-17, 1993 CL SAN ANTONIO, TX SP IEEE, CONTROL SYST SOC C1 USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 2 Z9 3 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1298-8 PY 1993 BP 462 EP 468 DI 10.1109/CDC.1993.325104 PG 7 WC Automation & Control Systems; Engineering, Electrical & Electronic; Operations Research & Management Science; Mathematics, Applied SC Automation & Control Systems; Engineering; Operations Research & Management Science; Mathematics GA BA27F UT WOS:A1993BA27F00098 ER PT B AU YEN, GG BERG, JL AF YEN, GG BERG, JL GP IEEE TI RECONFIGURABLE LEARNING CONTROL IN LARGE SPACE STRUCTURES SO PROCEEDINGS OF THE 32ND IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4 LA English DT Proceedings Paper CT 32nd IEEE Conference on Decision and Control CY DEC 15-17, 1993 CL SAN ANTONIO, TX SP IEEE, CONTROL SYST SOC C1 USAF,PHILLIPS LAB,DIV STRUCT & CONTROLS,EDWARDS AFB,CA 93524. NR 0 TC 0 Z9 0 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1298-8 PY 1993 BP 744 EP 749 DI 10.1109/CDC.1993.325050 PG 6 WC Automation & Control Systems; Engineering, Electrical & Electronic; Operations Research & Management Science; Mathematics, Applied SC Automation & Control Systems; Engineering; Operations Research & Management Science; Mathematics GA BA27F UT WOS:A1993BA27F00152 ER PT B AU CHANDLER, P MEARS, M PACHTER, M AF CHANDLER, P MEARS, M PACHTER, M GP IEEE TI ONLINE OPTIMIZING NETWORKS FOR RECONFIGURABLE CONTROL SO PROCEEDINGS OF THE 32ND IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4 LA English DT Proceedings Paper CT 32nd IEEE Conference on Decision and Control CY DEC 15-17, 1993 CL SAN ANTONIO, TX SP IEEE, CONTROL SYST SOC C1 WRIGHT LAB,FLIGHT DYNAM DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 6 Z9 8 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1298-8 PY 1993 BP 2272 EP 2277 DI 10.1109/CDC.1993.325602 PG 6 WC Automation & Control Systems; Engineering, Electrical & Electronic; Operations Research & Management Science; Mathematics, Applied SC Automation & Control Systems; Engineering; Operations Research & Management Science; Mathematics GA BA27F UT WOS:A1993BA27F00474 ER PT B AU ZYSK, KT DAHOTRE, NB AF ZYSK, KT DAHOTRE, NB BE Bakish, R TI ELECTRON-BEAM WELDING OF 304 STAINLESS-STEEL TO COPPER SO PROCEEDINGS OF THE CONFERENCE ON THE LASER AND THE ELECTRON BEAM IN WELDING, CUTTING AND SURFACE TREATMENT: STATE OF THE ART 1993 LA English DT Proceedings Paper CT Conference on the Laser and the Electron Beam in Welding, Cutting and Surface Treatment: State of the Art 1993 CY OCT 31-NOV 02, 1993 CL RENO, NV C1 USAF,ARNOLD ENGN DEV CTR,DIV PROP FLIGHT TECHNOL,TEST OPERAT DIRECTORATE,ARNOLD AFB,TN 37389. NR 0 TC 0 Z9 0 U1 0 U2 0 PU BAKISH MATERIALS CORP PI ENGLEWOOD PA PO BOX 148, ENGLEWOOD, NJ 07631 BN 0-939997-16-9 PY 1993 BP 105 EP 118 PG 14 WC Materials Science, Multidisciplinary SC Materials Science GA BA83L UT WOS:A1993BA83L00008 ER PT B AU MERKLE, LD LAMONT, GB AF MERKLE, LD LAMONT, GB BE Forrest, S TI COMPARISON OF PARALLEL MESSY GENETIC ALGORITHM DATA DISTRIBUTION STRATEGIES SO PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON GENETIC ALGORITHMS LA English DT Proceedings Paper CT 5th International Conference on Genetic Algorithms CY JUL 17-21, 1993 CL UNIV ILLINOIS URBANA CHAMPAIGN, URBANA, IL HO UNIV ILLINOIS URBANA CHAMPAIGN C1 USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 4 Z9 4 U1 0 U2 0 PU MORGAN KAUFMANN PUB INC PI SAN MATEO PA 2929 CAMPUS DRIVE, SAN MATEO, CA 94403 BN 1-558-60299-2 PY 1993 BP 191 EP 198 PG 8 WC Computer Science, Artificial Intelligence; Genetics & Heredity SC Computer Science; Genetics & Heredity GA BZ56M UT WOS:A1993BZ56M00027 ER PT B AU HART, D AF HART, D GP SOC EXPTL MECH, INC TI TESTING OF THE THERMAL PROTECTION SYSTEM SO PROCEEDINGS OF THE STRUCTURAL TESTING TECHNOLOGY AT HIGH TEMPERATURE - II LA English DT Proceedings Paper CT Conference on Structural Testing Technology at High Temperature II CY NOV 08-10, 1993 CL OJAI, CA SP SOC EXPTL MECH INC C1 WRIGHT LAB,WRIGHT PATTERSON AFB,OH. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC EXPERIMENTAL MECHANICS INC PI BETHEL PA 7 SCHOOL ST, BETHEL, CT 06801 BN 0-912053-40-2 PY 1993 BP 36 EP 39 PG 4 WC Instruments & Instrumentation; Mechanics SC Instruments & Instrumentation; Mechanics GA BA38Z UT WOS:A1993BA38Z00004 ER PT B AU SIKORA, TP AF SIKORA, TP GP SOC EXPTL MECH, INC TI WL ACTIVELY COOLED STRUCTURES TEST FACILITY SO PROCEEDINGS OF THE STRUCTURAL TESTING TECHNOLOGY AT HIGH TEMPERATURE - II LA English DT Proceedings Paper CT Conference on Structural Testing Technology at High Temperature II CY NOV 08-10, 1993 CL OJAI, CA SP SOC EXPTL MECH INC C1 WRIGHT LAB,FLIGHT DYNAM DIRECTORATE,WRIGHT PATTERSON AFB,OH. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC EXPERIMENTAL MECHANICS INC PI BETHEL PA 7 SCHOOL ST, BETHEL, CT 06801 BN 0-912053-40-2 PY 1993 BP 71 EP 77 PG 7 WC Instruments & Instrumentation; Mechanics SC Instruments & Instrumentation; Mechanics GA BA38Z UT WOS:A1993BA38Z00007 ER PT B AU NICHOLAS, T RUSS, SM AF NICHOLAS, T RUSS, SM GP SOC EXPTL MECH, INC TI RESPONSE OF A [0/90] SCS-6/TIMETAL(R)21S COMPOSITE TO ISOTHERMAL AND THERMOMECHANICAL FATIGUE SO PROCEEDINGS OF THE STRUCTURAL TESTING TECHNOLOGY AT HIGH TEMPERATURE - II LA English DT Proceedings Paper CT Conference on Structural Testing Technology at High Temperature II CY NOV 08-10, 1993 CL OJAI, CA SP SOC EXPTL MECH INC C1 WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC EXPERIMENTAL MECHANICS INC PI BETHEL PA 7 SCHOOL ST, BETHEL, CT 06801 BN 0-912053-40-2 PY 1993 BP 155 EP 164 PG 10 WC Instruments & Instrumentation; Mechanics SC Instruments & Instrumentation; Mechanics GA BA38Z UT WOS:A1993BA38Z00017 ER PT B AU HAGER, JW AF HAGER, JW BE Upadhya, K TI CARBON-CARBON - MULTIUSE COMPOSITE OR EXOTIC ARTIFACT SO PROCESSING, FABRICATION AND APPLICATION OF ADVANCED COMPOSITES LA English DT Proceedings Paper CT Conference on Processing Fabrication and Application of Advanced Composites CY AUG 09-11, 1993 CL LONG BEACH, CA SP ASM INT, MINERALS MET & MAT SOC C1 WRIGHT LAB,WRIGHT PATTERSON AFB,OH. NR 0 TC 3 Z9 3 U1 0 U2 0 PU ASSOC PETROLEUM RE-REFINERS PI WASHINGTON PA 2025 PENNSYLVANIA AVENUE NW, SUITE 1111, WASHINGTON, DC 20006 BN 0-87170-473-0 PY 1993 BP 33 EP 38 PG 6 WC Materials Science, Multidisciplinary SC Materials Science GA BA08S UT WOS:A1993BA08S00004 ER PT B AU KOURY, JL KIM, TD TRACY, JJ HARVEY, JA AF KOURY, JL KIM, TD TRACY, JJ HARVEY, JA BE Upadhya, K TI CONTINUOUS FIBER-COMPOSITE ISOGRID STRUCTURES FOR SPACE APPLICATIONS SO PROCESSING, FABRICATION AND APPLICATION OF ADVANCED COMPOSITES LA English DT Proceedings Paper CT Conference on Processing Fabrication and Application of Advanced Composites CY AUG 09-11, 1993 CL LONG BEACH, CA SP ASM INT, MINERALS MET & MAT SOC C1 USAF,PHILLIPS LAB,EDWARDS AFB,CA. NR 0 TC 0 Z9 1 U1 0 U2 0 PU ASSOC PETROLEUM RE-REFINERS PI WASHINGTON PA 2025 PENNSYLVANIA AVENUE NW, SUITE 1111, WASHINGTON, DC 20006 BN 0-87170-473-0 PY 1993 BP 193 EP 198 PG 6 WC Materials Science, Multidisciplinary SC Materials Science GA BA08S UT WOS:A1993BA08S00025 ER PT S AU HANNAFIN, KM AF HANNAFIN, KM BE Modell, HI Michael, JA TI DESIGNING PROCESS-ORIENTED LEARNING-RESOURCES SO PROMOTING ACTIVE LEARNING IN THE LIFE SCIENCE CLASSROOM SE ANNALS OF THE NEW YORK ACADEMY OF SCIENCES LA English DT Article; Proceedings Paper CT Workshop on Promoting Active Learning in the Life Science Classroom CY FEB 12-14, 1993 CL LEXINGTON, KY SP NEW YORK ACAD SCI C1 USAF ACAD,CTR EDUC EXCELLENCE,COLORADO SPRINGS,CO 80840. USAF ACAD,DEPT BEHAV SCI & LEADERSHIP,COLORADO SPRINGS,CO 80840. NR 9 TC 1 Z9 1 U1 0 U2 1 PU NEW YORK ACAD SCIENCES PI NEW YORK PA 2 EAST 63RD ST, NEW YORK, NY 10021 SN 0077-8923 BN 0-89766-829-4 J9 ANN NY ACAD SCI JI Ann.NY Acad.Sci. PY 1993 VL 701 BP 77 EP 82 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA BZ86A UT WOS:A1993BZ86A00009 ER PT J AU PACHTER, R COOPER, TM CRANE, RL ADAMS, WW AF PACHTER, R COOPER, TM CRANE, RL ADAMS, WW TI STABILITY AND MOLECULAR-STRUCTURE OF NONLINEAR OPTICAL CHROMOPHORE CONTAINING POLYPEPTIDES SO PROTEIN ENGINEERING LA English DT Meeting Abstract C1 USAF,MLPJ,WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. RI Adams, Wade/A-7305-2010 NR 12 TC 0 Z9 0 U1 0 U2 0 PU OXFORD UNIV PRESS UNITED KINGDOM PI OXFORD PA WALTON ST JOURNALS DEPT, OXFORD, ENGLAND OX2 6DP SN 0269-2139 J9 PROTEIN ENG JI Protein Eng. PY 1993 VL 6 SU S BP 20 EP 20 PG 1 WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA KT952 UT WOS:A1993KT95200032 ER PT J AU BUTLER, AC RAO, SS LECLAIR, SR AF BUTLER, AC RAO, SS LECLAIR, SR TI RELIABILITY-ANALYSIS OF COMPLEX-SYSTEMS USING SYMBOLIC LOGIC SO RELIABILITY ENGINEERING & SYSTEM SAFETY LA English DT Article ID NETWORK RELIABILITY; ALGORITHM; UNRELIABILITY AB System reliability is an important parameter in the operation of modern utility systems, spacecraft and manufacturing facilities. Over the last several decades researchers have used many different methods to determine complex system reliability. This paper uses new and novel techniques which are based on artificial intelligence and expert systems to determine system reliability. This work is based on heuristic search and a symbolic logic system which provides symbolic representation for overall system reliability when there is a single input and single output. Pivotal decomposition is used on a recursive basis to repeatedly reduce complex systems/subsystems to simpler systems. Eventually, these simpler systems are further reduced into easily resolved series-parallel arrangements. This symbolic logic system uses a heuristic based 'hill climbing' search algorithm. The algorithm identifies the pivotal or complex component. Once this pivotal component is selected, additional procedures are used to symbolically recognize other components within the resulting subgraphs which are made superfluous by the selection of the pivot component. These superfluous components are removed, and the simplification process is allowed to continue on a recursive basis. Once further recursive analysis is not needed, additional rules are employed to reduce the result to a system recognizable form in terms of series-parallel components. Finally, a 'symbolic processor' is used to convert this recognized form into a symbolic sum of products equation representing the overall system. C1 PURDUE UNIV,SCH MECH ENGN,W LAFAYETTE,IN 47907. USAF,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. NR 33 TC 2 Z9 2 U1 0 U2 1 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0951-8320 J9 RELIAB ENG SYST SAFE JI Reliab. Eng. Syst. Saf. PY 1993 VL 40 IS 1 BP 49 EP 60 DI 10.1016/0951-8320(93)90118-I PG 12 WC Engineering, Industrial; Operations Research & Management Science SC Engineering; Operations Research & Management Science GA KL274 UT WOS:A1993KL27400006 ER PT J AU TOTH, CA LANDERS, MB AF TOTH, CA LANDERS, MB TI A NEW WIDE-FIELD TEMPORARY KERATOPROSTHESIS SO RETINA-THE JOURNAL OF RETINAL AND VITREOUS DISEASES LA English DT Letter DE CORNEAL OPACITY; TEMPORARY KERATOPROSTHESIS; ENDOPHTHALMITIS; INSTRUMENTATION; WIDE-FIELD TEMPORARY KERATOPROSTHESIS; OCULAR TRAUMA; VITRECTOMY RP TOTH, CA (reprint author), WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236, USA. RI toth, cynthia/F-5614-2011 NR 0 TC 7 Z9 7 U1 0 U2 1 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 0275-004X J9 RETINA-J RET VIT DIS JI Retin.-J. Retin. Vitr. Dis. PY 1993 VL 13 IS 4 BP 353 EP 355 PG 3 WC Ophthalmology SC Ophthalmology GA MP372 UT WOS:A1993MP37200014 PM 8115737 ER PT J AU RUSSELL, JD AF RUSSELL, JD TI CURE SHRINKAGE OF THERMOSET COMPOSITES SO SAMPE QUARTERLY-SOCIETY FOR THE ADVANCEMENT OF MATERIAL AND PROCESS ENGINEERING LA English DT Article ID MICRODIELECTROMETRY AB The shrinkage of thermoset composites during cure was studied using a volumetric dilatometer. The material systems studied were AS4 carbon fiber/Hercules' 3501-6 epoxy, IM7 carbon fiber/Hercules' 8551-7A toughened epoxy, and IM7 carbon fiber/BASFs 5250-4 bismaleimide. Shrinkage of the samples due to both polymerization and thermal expansion effects was seen. The volume changes of the materials during cure were then compared to results from dynamic mechanical analysis (DMA) and dielectric cure monitoring. Maximums in volume corresponded to minimums in storage and loss modulus from DMA and maximums in the dielectric loss factor. Resin shrinkage during the 177-degrees-C (350-degrees-F) hold corresponded to the onset of polymerization seen by the rapid increase in the storage modulus and the decrease in the dielectric loss factor response due to reduced ion mobility. These results show that volumetric dilatometry can be an effective tool in the development of materials processing strategies and can be useful in studying residual stresses in composites. RP RUSSELL, JD (reprint author), USAF,MAT DIRECTORATE,WL,MLBC,WRIGHT PATTERSON AFB,OH 45433, USA. NR 9 TC 25 Z9 25 U1 2 U2 9 PU SAMPE PUBLISHERS PI COVINA PA 1161 PARKVIEW DRIVE, COVINA, CA 91722 SN 0036-0821 J9 SAMPE QUART PD JAN PY 1993 VL 24 IS 2 BP 28 EP 33 PG 6 WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary SC Engineering; Materials Science GA KJ703 UT WOS:A1993KJ70300004 ER PT B AU DSOUZA, CN CLOUTIER, JR AF DSOUZA, CN CLOUTIER, JR GP IEEE, CONTROL SYST SOC TI A HYBRID APPROACH TO OPTIMAL-CONTROL SO SECOND IEEE CONFERENCE ON CONTROL APPLICATIONS, VOLS 1 AND 2 LA English DT Proceedings Paper CT 2nd IEEE Conference on Control Applications CY SEP 13-16, 1993 CL VANCOUVER, CANADA SP IEEE, CONTROL SYST SOC C1 USAF,ARMAMENT DIRECTORATE,NAVIGAT & CONTROL BRANCH,EGLIN AFB,FL 32542. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-0908-1 PY 1993 BP 261 EP 265 PG 5 WC Automation & Control Systems; Engineering, Electrical & Electronic SC Automation & Control Systems; Engineering GA BA20D UT WOS:A1993BA20D00043 ER PT B AU OSBORNE, RC ADAMS, RJ HSU, CS BANDA, SS AF OSBORNE, RC ADAMS, RJ HSU, CS BANDA, SS GP IEEE, CONTROL SYST SOC TI MINIMAL-ORDER OBSERVER-BASED H-INFINITY CONTROL FOR A FLIGHT CONTROL PROBLEM SO SECOND IEEE CONFERENCE ON CONTROL APPLICATIONS, VOLS 1 AND 2 LA English DT Proceedings Paper CT 2nd IEEE Conference on Control Applications CY SEP 13-16, 1993 CL VANCOUVER, CANADA SP IEEE, CONTROL SYST SOC C1 WRIGHT LAB,FLIGHT DYNAM DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-0908-1 PY 1993 BP 853 EP 858 PG 6 WC Automation & Control Systems; Engineering, Electrical & Electronic SC Automation & Control Systems; Engineering GA BA20D UT WOS:A1993BA20D00136 ER PT B AU MANASREH, MO STUTZ, CE SOLOMON, JS MIER, MG KASPI, R EVANS, KR AF MANASREH, MO STUTZ, CE SOLOMON, JS MIER, MG KASPI, R EVANS, KR BE Miner, CJ Ford, W Weber, ER TI INFRARED-ABSORPTION OF LOCALIZED VIBRATIONAL-MODES OF SILICON AND BERYLLIUM IN LOW-TEMPERATURE MOLECULAR-BEAM EPITAXIAL GAAS SO SEMI-INSULATING III-V MATERIALS, IXTAPA, MEXICO 1992 LA English DT Proceedings Paper CT 7th Conference on Semi-Insulating III-V Materials CY APR 21-24, 1992 CL IXTAPA, MEXICO SP IEEE, ELECTRON DEVICES DIV C1 ELRA,WRIGHT LAB,SOLID STATE ELECTR DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA TECHNO HOUSE, REDCLIFFE WAY, BRISTOL, ENGLAND BS1 6NX BN 0-7503-0242-9 PY 1993 BP 147 EP 151 PG 5 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA BZ43V UT WOS:A1993BZ43V00022 ER PT B AU MITCHEL, WC REA, LS AF MITCHEL, WC REA, LS BE Miner, CJ Ford, W Weber, ER TI ENHANCED AND PERSISTENT PHOTOCURRENTS IN BULK SEMIINSULATING GAAS AT LOW-TEMPERATURES SO SEMI-INSULATING III-V MATERIALS, IXTAPA, MEXICO 1992 LA English DT Proceedings Paper CT 7th Conference on Semi-Insulating III-V Materials CY APR 21-24, 1992 CL IXTAPA, MEXICO SP IEEE, ELECTRON DEVICES DIV C1 WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 1 PU IOP PUBLISHING LTD PI BRISTOL PA TECHNO HOUSE, REDCLIFFE WAY, BRISTOL, ENGLAND BS1 6NX BN 0-7503-0242-9 PY 1993 BP 229 EP 234 PG 6 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA BZ43V UT WOS:A1993BZ43V00035 ER PT B AU FISCHER, DW MANASREH, MO MATOUS, G PEARTON, SJ AF FISCHER, DW MANASREH, MO MATOUS, G PEARTON, SJ BE Miner, CJ Ford, W Weber, ER TI INFRARED-ABSORPTION IN PROTON-IMPLANTED AND DEUTERON-IMPLANTED SEMIINSULATING INP-FE SO SEMI-INSULATING III-V MATERIALS, IXTAPA, MEXICO 1992 LA English DT Proceedings Paper CT 7th Conference on Semi-Insulating III-V Materials CY APR 21-24, 1992 CL IXTAPA, MEXICO SP IEEE, ELECTRON DEVICES DIV C1 WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA TECHNO HOUSE, REDCLIFFE WAY, BRISTOL, ENGLAND BS1 6NX BN 0-7503-0242-9 PY 1993 BP 259 EP 263 PG 5 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA BZ43V UT WOS:A1993BZ43V00040 ER PT B AU WITT, GL AF WITT, GL BE Hirtz, JP Whitehouse, C Meier, HP VonBardeleben, HJ Manasreh, MO TI LTMBE GAAS - PRESENT STATUS AND PERSPECTIVES SO SEMICONDUCTOR MATERIALS FOR OPTOELECTRONICS & LTMBE MATERIALS SE EUROPEAN MATERIALS RESEARCH SOCIETY SYMPOSIA-PROCEEDINGS LA English DT Proceedings Paper CT Symposium A on Semiconductor Materials for Optoelectronic Devices, OEICs and Photonics, at the 1993 E-MRS Spring Conference CY MAY 04-07, 1993 CL STRASBOURG, FRANCE SP EUROPEAN MAT RES SOC, COUNCIL EUROPE, COMMISS EUROPEAN COMMUNITIES C1 AFOSR NE,BOLLING AFB,DC 20332. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE PUBL B V PI AMSTERDAM PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS BN 0-444-81769-7 J9 EUR MAT RES PY 1993 VL 40 BP 9 EP 15 PG 7 WC Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Optics; Physics, Condensed Matter SC Engineering; Materials Science; Optics; Physics GA BB85W UT WOS:A1993BB85W00050 ER PT S AU HALL, CD AF HALL, CD BE Teles, J Samii, MV TI RESONANCE CAPTURE IN AXIAL GYROSTATS SO SPACEFLIGHT DYNAMICS 1993, PTS 1 AND 2 SE ADVANCES IN THE ASTRONAUTICAL SCIENCES LA English DT Proceedings Paper CT AAS/NASA International Symposium: Spaceflight Dynamics 1993 CY APR 26-30, 1993 CL GREENBELT, MD SP AMER ASTRONAUT SOC, NASA C1 USAF,INST TECHNOL ENY,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU UNIVELT INC PI SAN DIEGO PA PO BOX 28130, SAN DIEGO, CA 92128 SN 0065-3438 BN 0-87703-378-1 J9 ADV ASTRONAUT SCI PY 1993 VL 84 BP 1133 EP 1148 PN 1-2 PG 16 WC Engineering, Aerospace SC Engineering GA BA20M UT WOS:A1993BA20M00079 ER PT S AU HALL, CD AF HALL, CD BE Melton, RG Wood, LJ Thompson, RC Kerridge, SJ TI SPINUP DYNAMICS OF BIAXIAL GYROSTATS SO SPACEFLIGHT MECHANICS 1993 SE ADVANCES IN THE ASTRONAUTICAL SCIENCES LA English DT Proceedings Paper CT AAS/AIAA Spaceflight Mechanics Meeting CY FEB 22-24, 1993 CL PASADENA, CA SP AMER ASTRONAUT SOC, AMER INST AERONAUT & ASTRONAUT C1 USAF,INST TECHNOL,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 1 Z9 1 U1 0 U2 0 PU UNIVELT INC PI SAN DIEGO PA PO BOX 28130, SAN DIEGO, CA 92128 SN 0065-3438 BN 0-87703-368-4 J9 ADV ASTRONAUT SCI PY 1993 VL 82 BP 211 EP 222 PN 1-2 PG 12 WC Engineering, Aerospace; Mechanics SC Engineering; Mechanics GA BZ64V UT WOS:A1993BZ64V00013 ER PT S AU AVILA, ER AF AVILA, ER BE Melton, RG Wood, LJ Thompson, RC Kerridge, SJ TI PARAMETRIC STUDIES AND ORBITAL ANALYSIS FOR AN ELECTRIC ORBIT TRANSFER VEHICLE SPACE-FLIGHT DEMONSTRATION SO SPACEFLIGHT MECHANICS 1993 SE ADVANCES IN THE ASTRONAUTICAL SCIENCES LA English DT Proceedings Paper CT AAS/AIAA Spaceflight Mechanics Meeting CY FEB 22-24, 1993 CL PASADENA, CA SP AMER ASTRONAUT SOC, AMER INST AERONAUT & ASTRONAUT C1 TRW CO INC,USAF,PHILLIPS LAB,REDONDO BEACH,CA 90278. NR 0 TC 0 Z9 0 U1 0 U2 0 PU UNIVELT INC PI SAN DIEGO PA PO BOX 28130, SAN DIEGO, CA 92128 SN 0065-3438 BN 0-87703-368-4 J9 ADV ASTRONAUT SCI PY 1993 VL 82 BP 1215 EP 1240 PN 1-2 PG 26 WC Engineering, Aerospace; Mechanics SC Engineering; Mechanics GA BZ64V UT WOS:A1993BZ64V00075 ER PT B AU DIMIDUK, DM MENDIRATTA, MG SUBRAMANIAN, PR AF DIMIDUK, DM MENDIRATTA, MG SUBRAMANIAN, PR BE Darolia, R Lewandowski, JJ Liu, CT Martin, PL Miracle, DB Nathal, MV TI DEVELOPMENT APPROACHES FOR ADVANCED INTERMETALLIC MATERIALS - HISTORICAL-PERSPECTIVE AND SELECTED SUCCESSES SO STRUCTURAL INTERMETALLICS LA English DT Proceedings Paper CT 1st International Symposium on Structural Intermetallics CY SEP 26-30, 1993 CL CHAMPION, PA SP MINERALS MET & MAT SOC, HIGH TEMP ALLOYS COMM, AMER SOC MET INT, AMER SOC MECH ENGINEERS C1 WRIGHT LAB,WL,MLLM,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 43 Z9 48 U1 0 U2 2 PU MINERALS, METALS & MATERIALS SOC PI WARRENDALE PA 420 COMMONWEALTH DR, WARRENDALE, PA 15086 BN 0-87339-253-1 PY 1993 BP 619 EP 630 PG 12 WC Materials Science, Multidisciplinary SC Materials Science GA BZ64C UT WOS:A1993BZ64C00067 ER PT B AU WALDOWSKI, PJ AF WALDOWSKI, PJ GP SAS USERS GRP INT TI THE IMPORTANCE OF SAS(R) SOFTWARE IN A TQM ENVIRONMENT SO SUGI 18: PROCEEDINGS OF THE EIGHTEENTH ANNUAL SAS USERS GROUP INTERNATIONAL CONFERENCE LA English DT Proceedings Paper CT 18th Annual SAS Users Group International Conference (SUGI 18) CY MAY 09-12, 1993 CL NEW YORK, NY SP SAS USERS GRP INT C1 USAF,DOSM,COMMUN GRP 7,WASHINGTON,DC 20330. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SAS INST INC PI CARY PA SAS CIRCLE, PO BOX 8000, CARY, NC 27511 BN 1-55544-550-0 PY 1993 BP 380 EP 384 PG 5 WC Computer Science, Information Systems; Computer Science, Software Engineering SC Computer Science GA BA72C UT WOS:A1993BA72C00060 ER PT B AU WEINSTOCK, H MIGNOGNA, RB SCHECHTER, RS SIMMONDS, KE AF WEINSTOCK, H MIGNOGNA, RB SCHECHTER, RS SIMMONDS, KE BE Koch, H Lubbig, H TI AN IMPROVED SYSTEM FOR THE NONDESTRUCTIVE EVALUATION OF STEEL SO SUPERCONDUCTING DEVICES AND THEIR APPLICATIONS SE SPRINGER PROCEEDINGS IN PHYSICS LA English DT Proceedings Paper CT 4TH INTERNATIONAL CONFERENCE on Superconducting and Quantum Effect Devices and Their Applications (SQUID 91) CY JUN 18-21, 1991 CL BERLIN, GERMANY SP DR WILHELM HEINRICH HERAEUS & ELSE HERAEUS STIFT, JAPANESE GERMAN CTR BERLIN, PHYS TECH BUNDESANSTALT C1 USAF,OFF SCI RES,WASHINGTON,DC 20332. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER-VERLAG BERLIN PI BERLIN 33 PA HEIDELBERGER PLATZ 3, W-1000 BERLIN 33, GERMANY BN 3-540-55396-7 J9 SPRINGER PROC PHYS PY 1993 VL 64 BP 572 EP 575 PG 4 WC Physics, Applied; Physics, Condensed Matter SC Physics GA BA73R UT WOS:A1993BA73R00100 ER PT J AU Wilkes, JS Zaworotko, MJ AF Wilkes, John S. Zaworotko, Michael J. TI Manifestations of noncovalent interactions in the solid state. Dimeric and polymeric self-assembly in imidazolium salts via face-to-face cation-cation pi-stacking SO SUPRAMOLECULAR CHEMISTRY LA English DT Article AB X-ray crystallographic investigation of the tertiary structure of simple 1-methylimidazolium (1-Meim) salts reveals that cation-cation face-to-face pi-stacking with interplanar separations in the range typically seen for molecule-molecule and molecule-cation interactions are possible. Two salts are reported. 1-Meim-CF3SO3, 1, exists as a centrosymmetric dimer with an interplanar separation of only 3.16 angstrom. The two imidazolium rings are slipped to the extent that the interaction can be regarded as a manifestation of C-H center dot center dot center dot C-H dipole interactions. 1-Meim-NO3 exists as a one-dimensional (1-D) polymer with interplanar separations of 3.65 angstrom. The cations are not as severely slipped as for 1 and the interactions can be regarded as the result of cation-cation and anion-anion complementary electrostatics. Semi-empirical calculations are used to rationalize the pi-pi stacking in both 1 and 2. Crystal data: 1-Meim-CF3SO3, 1, triclinic, P (1) over bar, a = 6.416(3) angstrom, b = 7.617(4) angstrom, c = 9.569(4) angstrom, alpha = 85.36(4)degrees, beta = 86.08(3)degrees, gamma = 85.18(4)degrees, V = 463.6 (4) angstrom,(3) Z = 2, D-c = 1.66 g cm(-3), mu = 3.7 cm(-1), T = 17 degrees C, R = 0.054 and R-w = 0.076 for 1241 reflections; 1-Meim-NO3, 2, monoclinic, P2(1)/c, a = 9.009(7) angstrom, b = 9.988(6) angstrom, c = 7.308(5) angstrom, beta = 94.93(6)degrees, V= 655.2(8) angstrom,(3) Z = 4, D-c = 1.47 g cm(-3), mu = 1.2 cm(-1), T = 17 degrees C, R = 0.060 and R-w = 0.068 for 483 reflections. C1 [Wilkes, John S.; Zaworotko, Michael J.] US Air Force Acad, Frank J Seiler Res Lab, Colorado Springs, CO 80840 USA. RP Zaworotko, MJ (reprint author), St Marys Univ, Dept Chem, Halifax, NS B3H 3C3, Canada. FU Air Force Office of Scientific Research; National Research Council FX This work was supported by the Air Force Office of Scientific Research and the National Research Council (fellowship to M.J.Z.). We thank Drs. J.J.P. Stewart and M. Coolidge for helpful discussions concerning MOPAC. NR 33 TC 26 Z9 26 U1 0 U2 4 PU TAYLOR & FRANCIS LTD PI ABINGDON PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND SN 1061-0278 EI 1029-0478 J9 SUPRAMOL CHEM JI Supramol. Chem. PY 1993 VL 1 IS 3-4 BP 191 EP 193 DI 10.1080/10610279308035160 PG 3 WC Chemistry, Multidisciplinary SC Chemistry GA V40XY UT WOS:000209512500002 ER PT B AU DOUB, CA AF DOUB, CA BE Kampe, TU Oberheuser, JH TI SCAN LENS DESIGN FOR DIRECT WRITE SCENE GENERATION SO SYSTEMS-ORIENTED OPTICAL DESIGN SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Systems Oriented Optical Design CY APR 13-14, 1993 CL ORLANDO, FL SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 CALSPAN CORP,AEDC OPERAT,ARNOLD AFB,TN 37389. NR 0 TC 0 Z9 0 U1 1 U2 1 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1208-2 J9 P SOC PHOTO-OPT INS PY 1993 VL 1970 BP 23 EP 34 DI 10.1117/12.155832 PG 12 WC Optics SC Optics GA BZ45K UT WOS:A1993BZ45K00003 ER PT B AU MCQUAY, PA DIMIDUK, DM LIPSITT, HA SEMIATIN, SL AF MCQUAY, PA DIMIDUK, DM LIPSITT, HA SEMIATIN, SL BE Froes, FH Caplan, IL TI THE EFFECT OF CHROMIUM ON THE KINETICS OF ALPHA-DECOMPOSITION IN GAMMA TIAL ALLOYS SO TITANIUM '92: SCIENCE AND TECHNOLOGY, VOLS 1-3 LA English DT Proceedings Paper CT Symposium on Titanium: Science and technology, at the 7th World Titanium Conference CY JUN 29-JUL 02, 1992 CL SAN DIEGO, CA SP MINERALS MET & MAT SOC, STRUCT MET DIV, TITANIUM COMM C1 WRIGHT LAB,MLLM,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RI SEMIATIN, SHELDON/E-7264-2017 NR 0 TC 12 Z9 12 U1 0 U2 0 PU MINERALS, METALS & MATERIALS SOC PI WARRENDALE PA 420 COMMONWEALTH DR, WARRENDALE, PA 15086 BN 0-87339-222-1 PY 1993 BP 1041 EP 1048 PG 8 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Materials Science, Characterization & Testing SC Materials Science; Metallurgy & Metallurgical Engineering GA BB20G UT WOS:A1993BB20G00124 ER PT B AU WARD, CH ROMAN, I WILLIAMS, JC THOMPSON, AW AF WARD, CH ROMAN, I WILLIAMS, JC THOMPSON, AW BE Froes, FH Caplan, IL TI MICROSTRUCTURE, TENSILE DUCTILITY, AND FRACTURE-TOUGHNESS OF TI-25AL-10NB-3V-1MO SO TITANIUM '92: SCIENCE AND TECHNOLOGY, VOLS 1-3 LA English DT Proceedings Paper CT Symposium on Titanium: Science and technology, at the 7th World Titanium Conference CY JUN 29-JUL 02, 1992 CL SAN DIEGO, CA SP MINERALS MET & MAT SOC, STRUCT MET DIV, TITANIUM COMM C1 WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 4 Z9 4 U1 2 U2 2 PU MINERALS, METALS & MATERIALS SOC PI WARRENDALE PA 420 COMMONWEALTH DR, WARRENDALE, PA 15086 BN 0-87339-222-1 PY 1993 BP 1171 EP 1178 PG 8 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Materials Science, Characterization & Testing SC Materials Science; Metallurgy & Metallurgical Engineering GA BB20G UT WOS:A1993BB20G00140 ER PT B AU SCHWENKER, SW EVANS, DJ EYLON, D AF SCHWENKER, SW EVANS, DJ EYLON, D BE Froes, FH Caplan, IL TI LONGITUDINAL CREEP-BEHAVIOR AND DAMAGE IN SCS-6 TI-6AL-4V METAL-MATRIX COMPOSITES SO TITANIUM '92: SCIENCE AND TECHNOLOGY, VOLS 1-3 LA English DT Proceedings Paper CT Symposium on Titanium: Science and technology, at the 7th World Titanium Conference CY JUN 29-JUL 02, 1992 CL SAN DIEGO, CA SP MINERALS MET & MAT SOC, STRUCT MET DIV, TITANIUM COMM C1 USAF,WRIGHT AERONAUT LABS,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 3 Z9 3 U1 0 U2 1 PU MINERALS, METALS & MATERIALS SOC PI WARRENDALE PA 420 COMMONWEALTH DR, WARRENDALE, PA 15086 BN 0-87339-222-1 PY 1993 BP 2593 EP 2600 PG 8 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Materials Science, Characterization & Testing SC Materials Science; Metallurgy & Metallurgical Engineering GA BB20G UT WOS:A1993BB20G00317 ER PT J AU GOSS, D AF GOSS, D GP AMER INST PLANT ENGINEERS TI AIR FORCE BASE UTILIZES AIR BEARINGS TO RELOCATE 7,000-SQUARE-FOOT MEZZANINE IN MAINTENANCE DEPOT SO TOTAL TEAM COMMITMENT TO FACILITIES EXCELLENCE: HIGHLIGHTS OF AIPE'S 1993 ANNUAL CONFERENCE LA English DT Proceedings Paper CT AIPE 1993 Annual Conference on Total Team Commitment to Facilities Excellence CY OCT 16-20, 1993 CL SAN ANTONIO, TX SP AMER INST PLANT ENGINEERS C1 OC ALC,TIPE,ENGN PLANNING BRANCH,TINKER AFB,OK. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER INST PLANT ENGINEERS PI CINCINNATI PA 8/80 CORPORATE PARK DRIVE, SUITE 305, CINCINNATI, OH 45242 PY 1993 BP 307 EP 325 PG 19 WC Engineering, Industrial SC Engineering GA BB94U UT WOS:A1993BB94U00032 ER PT J AU THIEM, TL LEE, YI SNEDDON, J AF THIEM, TL LEE, YI SNEDDON, J TI RECENT ADVANCES IN THE FIELD OF LASER ATOMIC SPECTROSCOPY SO TRAC-TRENDS IN ANALYTICAL CHEMISTRY LA English DT Article ID ENHANCED IONIZATION; PLASMA EMISSION; DIODE-LASER; FLUORESCENCE; FLAME; SPECTROMETRY; ABLATION; TOPICS; COPPER; SPARK AB An overview of recent advances in the field of analytical laser atomic spectroscopy will be discussed, in particular the laser's use as a light source in atomic absorption spectroscopy, as an excitation source in laser atomic fluorescence and laser enhanced ionization spectroscopy, as a method of solid sample introduction, and as a diagnostic tool. Selected current research in these fields will be highlighted together with their results. C1 MCNEESE STATE UNIV,DEPT CHEM,LAKE CHARLES,LA 70605. USAF,BEDFORD,MA 01731. UNIV MASSACHUSETTS,DEPT CHEM,LOWELL,MA 01854. NR 19 TC 10 Z9 10 U1 1 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0165-9936 J9 TRAC-TREND ANAL CHEM JI Trac-Trends Anal. Chem. PD JAN PY 1993 VL 12 IS 1 BP 18 EP 22 DI 10.1016/0165-9936(93)85009-8 PG 5 WC Chemistry, Analytical SC Chemistry GA KR290 UT WOS:A1993KR29000008 ER PT B AU PRATT, DM CHANG, WS HALLINAN, KP AF PRATT, DM CHANG, WS HALLINAN, KP BE Lee, JS Chung, SH Kim, KH TI HEAT-PIPE TRANSIENT SIMULATION-MODEL SO TRANSPORT PHENOMENA IN THERMAL ENGINEERING, VOLS 1 AND 2 LA English DT Proceedings Paper CT 6th International Symposium on Transport Phenomena in Thermal Engineering (ISTP-VI) CY MAY 09-13, 1993 CL SEOUL, SOUTH KOREA SP PACIFIC CTR THERMAL FLUIDS ENGN C1 WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU BEGELL HOUSE, INC PI NEW YORK PA 79 MADISON AVE, SUITE 1106, NEW YORK, NY 10016 BN 1-56700-015-0 PY 1993 BP 997 EP 1002 PG 6 WC Thermodynamics; Engineering, Chemical; Engineering, Mechanical SC Thermodynamics; Engineering GA BA70Z UT WOS:A1993BA70Z00162 ER PT B AU MORGAN, MJ CHANG, WS PAIS, MR CHOW, LC AF MORGAN, MJ CHANG, WS PAIS, MR CHOW, LC BE Lee, JS Chung, SH Kim, KH TI ASSESSMENT OF ELECTRONIC COOLING TECHNIQUES SO TRANSPORT PHENOMENA IN THERMAL ENGINEERING, VOLS 1 AND 2 LA English DT Proceedings Paper CT 6th International Symposium on Transport Phenomena in Thermal Engineering (ISTP-VI) CY MAY 09-13, 1993 CL SEOUL, SOUTH KOREA SP PACIFIC CTR THERMAL FLUIDS ENGN C1 WRIGHT LAB,AERO PROP & POWER DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU BEGELL HOUSE, INC PI NEW YORK PA 79 MADISON AVE, SUITE 1106, NEW YORK, NY 10016 BN 1-56700-015-0 PY 1993 BP 1207 EP 1210 PG 4 WC Thermodynamics; Engineering, Chemical; Engineering, Mechanical SC Thermodynamics; Engineering GA BA70Z UT WOS:A1993BA70Z00198 ER PT B AU PETROPOULOS, PG AF PETROPOULOS, PG BE Bertoni, HL Carin, L Felsen, LB TI PHASE ERROR CONTROL FOR FD-TD METHODS SO ULTRA-WIDEBAND, SHORT-PULSE ELECTROMAGNETICS LA English DT Proceedings Paper CT 2nd WRI International Conference on Ultra-Wideband Short-Pulse Electromagnetics CY OCT 08-10, 1992 CL POLYTECH UNIV, BROOKLYN, NY SP USAF, OFF SCI RES, USAF, SYST COMMAND, ROME LAB HO POLYTECH UNIV C1 ARMSTRONG LAB,AL OES,BROOKS AFB,TX 78235. RI Petropoulos, Peter/M-6495-2013 NR 0 TC 18 Z9 18 U1 0 U2 0 PU PLENUM PRESS DIV PLENUM PUBLISHING CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 BN 0-306-44530-1 PY 1993 BP 359 EP 366 PG 8 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BZ51H UT WOS:A1993BZ51H00040 ER PT B AU LECLAIR, SR ALKAMHAWI, H AF LECLAIR, SR ALKAMHAWI, H GP INT NEURAL NETWORK SOC TI MEMORY-DRIVEN DESIGN SO WCNN'93 - PORTLAND, WORLD CONGRESS ON NEURAL NETWORKS, VOL I LA English DT Proceedings Paper CT World Congress on Neural Networks (WCNN 93, Portland) CY JUL 11-15, 1993 CL PORTLAND, OR SP INT NEURAL NETWORK SOC C1 USAF,WASHINGTON,DC 20330. NR 0 TC 0 Z9 0 U1 0 U2 0 PU LAWRENCE ERLBAUM ASSOC PUBL PI MAHWAH PA 10 INDUSTRIAL AVE, MAHWAH, NJ 07430 BN 0-8058-1497-3 PY 1993 BP 476 EP 481 PG 6 WC Computer Science, Artificial Intelligence; Neurosciences SC Computer Science; Neurosciences & Neurology GA BA45U UT WOS:A1993BA45U00111 ER PT B AU YEN, GG BRG, JL AF YEN, GG BRG, JL GP INT NEURAL NETWORK SOC TI CONNECTIONIST LEARNING CONTROL IN LARGE SPACE STRUCTURES SO WCNN'93 - PORTLAND, WORLD CONGRESS ON NEURAL NETWORKS, VOL I LA English DT Proceedings Paper CT World Congress on Neural Networks (WCNN 93, Portland) CY JUL 11-15, 1993 CL PORTLAND, OR SP INT NEURAL NETWORK SOC C1 USAF,PHILLIPS LAB,OL AC PL VTSS,EDWARDS AFB,CA 93524. NR 0 TC 0 Z9 0 U1 0 U2 0 PU LAWRENCE ERLBAUM ASSOC PUBL PI MAHWAH PA 10 INDUSTRIAL AVE, MAHWAH, NJ 07430 BN 0-8058-1497-3 PY 1993 BP 581 EP 584 PG 4 WC Computer Science, Artificial Intelligence; Neurosciences SC Computer Science; Neurosciences & Neurology GA BA45U UT WOS:A1993BA45U00132 ER PT J AU COMINS, DL KILLPACK, MO AF COMINS, DL KILLPACK, MO TI STEREOSELECTIVE ADDITION OF (TRIPHENYLSILYL)MAGNESIUM BROMIDE TO CHIRAL 1-ACYL-4-METHOXYPYRIDINIUM SALTS - SYNTHESIS AND REACTIONS OF ENANTIOPURE 1-ACYL-2-(TRIPHENYLSILYL)-2,3-DIHYDRO-4-PYRIDONES SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Note ID ASYMMETRIC-SYNTHESIS C1 UTAH STATE UNIV,DEPT CHEM & BIOCHEM,LOGAN,UT 84322. USAF ACAD,DEPT CHEM,COLORADO SPRINGS,CO 80840. RP COMINS, DL (reprint author), N CAROLINA STATE UNIV,DEPT CHEM,RALEIGH,NC 27695, USA. NR 14 TC 51 Z9 51 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD DEC 30 PY 1992 VL 114 IS 27 BP 10972 EP 10974 DI 10.1021/ja00053a050 PG 3 WC Chemistry, Multidisciplinary SC Chemistry GA KF882 UT WOS:A1992KF88200050 ER PT J AU FERGUSON, TR AF FERGUSON, TR TI UNSTABLE RESONATORS WITH DISTRIBUTED SATURABLE GAIN AND NONUNIFORM REFLECTIVITY OUTCOUPLERS IN THE GEOMETRICAL-OPTICS LIMIT SO APPLIED OPTICS LA English DT Article DE LASERS; RESONATORS; GAIN; REFLECTIVITY ID SUPER-GAUSSIAN MIRRORS AB An existing geometrical optics method for calculating the longitudinal and transverse dependence of the mode intensities in unstable resonators with sharp-edged feedbacks mirrors and distributed saturable gain is modified to include the nonuniform reflectivity of the outcoupling feedback mirror. Results show that the mode extends increasingly outward as the gain increases, so the size of a limiting aperture must be chosen with care to prevent unwanted diffraction. An attempt to prescribe an arbitrary spatially limited output function of a loaded cavity and to find the required mode and reflectivity profiles yields spatially unlimited functions. RP FERGUSON, TR (reprint author), USAF, PHILLIPS LAB, LIDD, KIRTLAND AFB, NM 87117 USA. NR 7 TC 7 Z9 7 U1 0 U2 0 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD DEC 20 PY 1992 VL 31 IS 36 BP 7551 EP 7556 PG 6 WC Optics SC Optics GA KF520 UT WOS:A1992KF52000007 PM 20802632 ER PT J AU FERGUSON, TR AF FERGUSON, TR TI UNSTABLE RESONATORS WITH NONUNIFORM REFLECTIVITY OUTCOUPLERS - GEOMETRIC-THEORY FOR BARE CAVITIES SO APPLIED OPTICS LA English DT Article DE UNSTABLE RESONATORS; REFLECTIVITY; MODES ID OPTICAL RESONATORS; MIRRORS; DESIGN AB The eigenequation from the geometric theory of unstable resonators with nonuniform reflectivity outcouplers is solved by a series method. Either the reflectivity profile or the dominant mode can be specified and the other can be obtained. A spatially limited output can also be specified, but the resulting mode and reflectivity profile are not guaranteed to be spatially limited. This problem can be avoided, but a good general method for obtaining all of the desired features has not been found. RP FERGUSON, TR (reprint author), PHILLIPS LAB, LIDD, USAF, KIRTLAND AFB, NM 87117 USA. NR 11 TC 4 Z9 4 U1 0 U2 0 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD DEC 20 PY 1992 VL 31 IS 36 BP 7557 EP 7562 PG 6 WC Optics SC Optics GA KF520 UT WOS:A1992KF52000008 PM 20802633 ER PT J AU LOCKWOOD, GW SKIFF, BA BALIUNAS, SL RADICK, RR AF LOCKWOOD, GW SKIFF, BA BALIUNAS, SL RADICK, RR TI LONG-TERM SOLAR BRIGHTNESS CHANGES ESTIMATED FROM A SURVEY OF SUN-LIKE STARS SO NATURE LA English DT Article ID MAIN-SEQUENCE STARS; STELLAR ACTIVITY; LUMINOSITY; CYCLE AB THE brightness of the Sun varies during the 11-year solar cycle, typically by less than 0.1% (refs 1, 2), and a larger brightness variation is thought to have occurred during the Maunder minimum, from AD 1645 to 1715 (refs 3-5). But because individual solar cycles are different in form, amplitude and length, and because accurate solar data have been available only for the most recent two or three cycles, there is no direct way of understanding long-term solar variability. Here we present a compilation of eight years of observations of 33 Sun-like stars and report year-to-year brightness changes that substantially exceed the analogous solar fluctuations. We have also measured chromospheric magnetic activity in these stars and find that it correlates with the brightness variations. During 1980-88, solar chromospheric variability was comparable to that observed in the stellar survey, but solar brightness variations were only one-quarter as large. This suggests that the Sun is in an unusually steady phase compared to similar stars, which means that reconstructing the past historical brightness record, for example from sunspot records, may be more risky than has been generally thought. C1 HARVARD SMITHSONIAN CTR ASTROPHYS,CAMBRIDGE,MA 02138. USAF,PHILLIPS LAB,SOLAR RES BRANCH,SUNSPOT,NM 88349. RP LOCKWOOD, GW (reprint author), LOWELL OBSERV,1400 W MARS HILL RD,FLAGSTAFF,AZ 86001, USA. NR 17 TC 55 Z9 55 U1 0 U2 1 PU MACMILLAN MAGAZINES LTD PI LONDON PA PORTERS SOUTH, 4 CRINAN ST, LONDON, ENGLAND N1 9XW SN 0028-0836 J9 NATURE JI Nature PD DEC 17 PY 1992 VL 360 IS 6405 BP 653 EP 655 DI 10.1038/360653a0 PG 3 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA KD082 UT WOS:A1992KD08200047 ER PT J AU DAYTON, D PIERSON, B SPIELBUSCH, B GONGLEWSKI, J AF DAYTON, D PIERSON, B SPIELBUSCH, B GONGLEWSKI, J TI ATMOSPHERIC STRUCTURE-FUNCTION MEASUREMENTS WITH A SHACK-HARTMANN WAVE-FRONT SENSOR SO OPTICS LETTERS LA English DT Article ID TURBULENCE; DECONVOLUTION; PROFILES; IMAGES AB The phase structure function has been used as a convenient way to characterize aberrations introduced on optical propagation by the atmosphere. It forms the theoretical basis for the calculation of such things as the long- and short-exposure atmospheric transfer function. The structure function is difficult to measure directly and is usually assumed to follow Kolmogorov statistics. We present here a technique for direct measurement of the structure function through the use of a Shack-Hartmann wave-front sensor. Experiments confirm that the atmosphere behaves according to Kolmogorov theory most of the time. However, some instances of non-Kolmogorov behavior have been noted. C1 USAF,PHILLIPS LAB,LASERS & IMAGING BRANCH,KIRTLAND AFB,NM 87117. RP DAYTON, D (reprint author), APPL TECHNOL ASSOCIATES INC,1900 RANDOLPH RD SE,ALBUQUERQUE,NM 87106, USA. NR 11 TC 73 Z9 77 U1 2 U2 7 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0146-9592 J9 OPT LETT JI Opt. Lett. PD DEC 15 PY 1992 VL 17 IS 24 BP 1737 EP 1739 DI 10.1364/OL.17.001737 PG 3 WC Optics SC Optics GA KD912 UT WOS:A1992KD91200003 PM 19798300 ER PT J AU KESTER, JJ WOLF, PJ WHITE, WR AF KESTER, JJ WOLF, PJ WHITE, WR TI 2ND-HARMONIC GENERATION IN PLANAR WAVE-GUIDES OF DOPED SILICA SO OPTICS LETTERS LA English DT Article ID OPTICAL FIBERS; HARMONIC-GENERATION; PHASE AB Second-harmonic generation was produced in germanium-doped silica planar waveguides prepared by simultaneous illumination with 1064- and 532-nm laser light. During preparation using prism coupling to specific waveguiding modes, the film-generated second-harmonic intensity grew as a function of preparation time until it saturated. The growth rate and saturation level for p-polarized second-harmonic intensity was an order of magnitude greater than that observed for the s polarization. The efficiency for a 2-cm waveguide length was at least 0.5%. The comparison of experimental results indicates a mechanism for this planar geometry that is similar to that producing harmonic effects in optical fibers. C1 USAF ACAD,DEPT PHYS,COLORADO SPRINGS,CO 80840. RP KESTER, JJ (reprint author), USAF ACAD,FRANK J SEILER RES LAB,COLORADO SPRINGS,CO 80840, USA. NR 12 TC 13 Z9 13 U1 0 U2 3 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0146-9592 J9 OPT LETT JI Opt. Lett. PD DEC 15 PY 1992 VL 17 IS 24 BP 1779 EP 1781 DI 10.1364/OL.17.001779 PG 3 WC Optics SC Optics GA KD912 UT WOS:A1992KD91200017 PM 19798314 ER PT J AU WIESEL, WE AF WIESEL, WE TI EXTENDED LYAPUNOV EXPONENTS SO PHYSICAL REVIEW A LA English DT Article AB The definition of a Lyapunov exponent can be extended to include an imaginary part. This extension requires the definition of a coordinate frame on the tangent space of the differential equation and an extension of the concept of a limit. The definition of extended Lyapunov exponents is based on the eigenvalues of the fundamental matrix. It is shown that the extended exponent agrees completely with the constant-coefficient case. It is shown that the eigenvectors and eigenvalues obey differential equations and can be propagated numerically without constructing the fundamental matrix itself. Bifurcation of eigenvalues and eigenvectors can also be followed numerically without recourse to the fundamental matrix. Two example applications of the method to the calculation of extended Lyapunov exponents are given. In the Lorenz problem, the real parts of the extended Lyapunov exponents agree quite well with previous results. Fourier-transform methods are used to show that the power spectrum of relative motion is discrete, with fundamental frequency quite close to the calculated imaginary part of the extended Lyapunov exponent. In the simple pendulum, the extended Lyapunov exponents are usually purely imaginary and are the relative oscillation frequencies of adjacent trajectories. RP WIESEL, WE (reprint author), USAF,INST TECHNOL,WRIGHT PATTERSON AFB,OH 45433, USA. NR 9 TC 4 Z9 4 U1 0 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD DEC 15 PY 1992 VL 46 IS 12 BP 7480 EP 7491 DI 10.1103/PhysRevA.46.7480 PG 12 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA KE871 UT WOS:A1992KE87100023 ER PT J AU REYNOLDS, DC JOGAI, B YU, PW EVANS, KR STUTZ, CE AF REYNOLDS, DC JOGAI, B YU, PW EVANS, KR STUTZ, CE TI INCREASED SCREENING OF THE HYDROGENIC DONOR DUE TO MODULATION DOPING IN QUANTUM-WELLS SO PHYSICAL REVIEW B LA English DT Article ID TRANSITIONS AB Screening of the hydrogenic donor at the center of the well in p-type modulation-doped AlxGa1-xAs-GaAs quantum wells was measured by monitoring the free to bound transition, free hole to donor. Undoped, center of the well doped, and center of the barrier doped samples were investigated. The screening increased, as measured by the reduction in the binding energy of the donor, in the sequence undoped, center of the well doped, and center of the barrier doped samples. The screening efficiency increases as the donor ion is moved farther away from the center of the well. The reduction in the donor binding energy, due to screening from carriers introduced by center of the barrier doping, agrees reasonably well with the calculated value for modulation-doped quantum wells of the same carrier density. C1 WRIGHT LAB,SOLID STATE ELECTR DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RP REYNOLDS, DC (reprint author), WRIGHT STATE UNIV,RES CTR,DAYTON,OH 45435, USA. NR 6 TC 3 Z9 3 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0163-1829 J9 PHYS REV B JI Phys. Rev. B PD DEC 15 PY 1992 VL 46 IS 23 BP 15274 EP 15276 DI 10.1103/PhysRevB.46.15274 PG 3 WC Physics, Condensed Matter SC Physics GA KG306 UT WOS:A1992KG30600037 ER PT J AU SOREF, R AF SOREF, R TI OPTICAL DISPERSION TECHNIQUE FOR TIME-DELAY BEAM STEERING SO APPLIED OPTICS LA English DT Note DE MICROWAVE; PHASED ARRAY; RADAR AB A simple technique for steering the microwave radiation beam of a phased-array antenna is proposed and analyzed. Chromatic dispersion in equal-length fibers is used. RP SOREF, R (reprint author), USAF,RL ERO,ROME LAB,BEDFORD,MA 01731, USA. NR 12 TC 65 Z9 66 U1 0 U2 1 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD DEC 10 PY 1992 VL 31 IS 35 BP 7395 EP 7397 PG 3 WC Optics SC Optics GA KA692 UT WOS:A1992KA69200002 PM 20802611 ER PT J AU ROGGEMANN, MC TYLER, DW BILMONT, MF AF ROGGEMANN, MC TYLER, DW BILMONT, MF TI LINEAR RECONSTRUCTION OF COMPENSATED IMAGES - THEORY AND EXPERIMENTAL RESULTS SO APPLIED OPTICS LA English DT Article ID ADAPTIVE-OPTICS AB Linear image reconstruction techniques are proposed for postprocessing astronomical images measured with compensated imaging systems. Linear techniques use averaging to overcome the effects of noise and deconvolution to remove system effects. Experimental results from compensated image measurements of four single stars and one binary star at visible wavelengths are reported for the first time, to our knowledge, and a previously derived analytic expression relating the statistics of the compensated optical transfer function to the compensated image spectrum signal-to-noise ratio is verified. The performance of deconvolution on a bright binary star with angular subtense previously estimated to be 0.52 arcsec (2.52 murad) is demonstrated. RP ROGGEMANN, MC (reprint author), USAF,PHILLIPS LAB,DIV ADV IMAGING,KIRTLAND AFB,NM 87117, USA. NR 18 TC 21 Z9 21 U1 0 U2 1 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD DEC 10 PY 1992 VL 31 IS 35 BP 7429 EP 7441 PG 13 WC Optics SC Optics GA KA692 UT WOS:A1992KA69200010 PM 20802619 ER PT J AU BOXWELL, DA AF BOXWELL, DA TI SIS-CAT AS ETHNOGRAPHER - SELF-PRESENTATION AND SELF-INSCRIPTION IN HURSTON,ZORA,NEALE 'MULES AND MEN' SO AFRICAN AMERICAN REVIEW LA English DT Article RP BOXWELL, DA (reprint author), USAF ACAD,COLORADO SPRINGS,CO 80840, USA. NR 28 TC 11 Z9 11 U1 0 U2 1 PU AFRICAN AMERICAN REVIEW PI TERRE HAUTE PA DEPT ENGLISH, INDIANA STATE UNIV, TERRE HAUTE, IN 47809 SN 1062-4783 J9 AFR AM REV JI Afr. Am. Rev. PD WIN PY 1992 VL 26 IS 4 BP 605 EP 617 DI 10.2307/3041874 PG 13 WC Literature, American SC Literature GA KV028 UT WOS:A1992KV02800006 ER PT J AU STETSON, KF KIMMEL, RL AF STETSON, KF KIMMEL, RL TI EXAMPLE OF 2ND-MODE INSTABILITY DOMINANCE AT A MACH NUMBER OF 5.2 SO AIAA JOURNAL LA English DT Note ID BOUNDARY-LAYER TRANSITION C1 WRIGHT LAB,HIGH SPEED AERO PERFORMANCE BRANCH,FLIGHT DYNAM DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. NR 12 TC 8 Z9 8 U1 0 U2 1 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0001-1452 J9 AIAA J JI AIAA J. PD DEC PY 1992 VL 30 IS 12 BP 2974 EP 2976 DI 10.2514/3.48982 PG 3 WC Engineering, Aerospace SC Engineering GA KD413 UT WOS:A1992KD41300027 ER PT J AU MANUSOV, EG AF MANUSOV, EG TI TAKAYASU ARTERITIS AS A CAUSE OF OROFACIAL PAIN - REPLY SO AMERICAN FAMILY PHYSICIAN LA English DT Letter RP MANUSOV, EG (reprint author), USAF,MED CTR,SCOTT AFB,IL 62225, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER ACAD FAMILY PHYSICIANS PI KANSAS CITY PA 8880 WARD PARKWAY, KANSAS CITY, MO 64114-2797 SN 0002-838X J9 AM FAM PHYSICIAN JI Am. Fam. Physician PD DEC PY 1992 VL 46 IS 6 BP 1664 EP 1664 PG 1 WC Primary Health Care; Medicine, General & Internal SC General & Internal Medicine GA KC180 UT WOS:A1992KC18000010 ER PT J AU SHOWALTER, DE AF SHOWALTER, DE TI LEAVING WAR BEHIND - BISMARCK POLICY DURING THE WAR AND THE ROAD TO PEACE 1870-1871 - GERMAN - KOLB,E SO AMERICAN HISTORICAL REVIEW LA English DT Book Review RP SHOWALTER, DE (reprint author), USAF ACAD,COLORADO SPRINGS,CO 80840, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU AMER HISTORICAL REVIEW PI WASHINGTON PA 400 A ST SE, WASHINGTON, DC 20003 SN 0002-8762 J9 AM HIST REV JI Am. Hist. Rev. PD DEC PY 1992 VL 97 IS 5 BP 1555 EP 1556 DI 10.2307/2166039 PG 2 WC History SC History GA KD400 UT WOS:A1992KD40000105 ER PT J AU WILLIAMS, WJ AF WILLIAMS, WJ TI THE AMERICAN CONCRETE SHIPBUILDING PROGRAM OF WORLD-WAR-1 SO AMERICAN NEPTUNE LA English DT Article RP WILLIAMS, WJ (reprint author), USAF ACAD,COLORADO SPRINGS,CO 80840, USA. NR 22 TC 1 Z9 1 U1 0 U2 0 PU PEABODY MUSEUM PI SALEM PA E INDIA MARINE HALL, SALEM, MA 01970 SN 0003-0155 J9 AM NEPTUNE JI Am. Neptune PD WIN PY 1992 VL 52 IS 1 BP 5 EP 15 PG 11 WC History SC History GA HJ433 UT WOS:A1992HJ43300001 ER PT J AU WELSH, BM AF WELSH, BM TI SENSING REFRACTIVE-TURBULENCE PROFILES (C-N(2)) USING WAVE-FRONT PHASE MEASUREMENTS FROM MULTIPLE REFERENCE SOURCES SO APPLIED OPTICS LA English DT Article DE ATMOSPHERIC OPTICS; ATMOSPHERIC TURBULENCE; ADAPTIVE OPTICS; REMOTE SENSING ID LASER GUIDE STARS; LIGHT; SCINTILLATIONS AB A new technique for sensing refractive-turbulence profiles is described. The technique is based on Performing a spatial correlation of the measured wave front phase from two reference sources. This technique is unique in that the correlation properties of the wave front phase are used instead of the more common approach of using optical scintillations. The geometry between the reference sources and the two wave front sensor apertures is arranged such that the two optical paths cross at some point in front of the sensor plane. The wave front phase for each reference source is reconstructed from the measured wave front sensor data. A spatial correlation of the two reconstructed phase maps is performed. From this correlation we are able to extract a measure of the structure constant of the refractive-index fluctuations C(n)2. The resolution of the technique depends on the angle between the optical paths, the spatial frequency response of the wave front sensors, as well as the size of the wave front sensor apertures. For sensing the vertical profile of C(n)2, we can obtain resolution of the order of 100 m by using sources separated by 1.15-degrees. RP WELSH, BM (reprint author), USAF,DEPT ELECT & COMP ENGN,WRIGHT PATTERSON AFB,OH 45433, USA. NR 16 TC 4 Z9 5 U1 0 U2 1 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD DEC 1 PY 1992 VL 31 IS 34 BP 7283 EP 7291 PG 9 WC Optics SC Optics GA JZ714 UT WOS:A1992JZ71400019 PM 20802595 ER PT J AU SMITH, JB TULLOCH, JE MEYER, LJ ZONE, JJ AF SMITH, JB TULLOCH, JE MEYER, LJ ZONE, JJ TI THE INCIDENCE AND PREVALENCE OF DERMATITIS-HERPETIFORMIS IN UTAH SO ARCHIVES OF DERMATOLOGY LA English DT Article ID IGA DEPOSITS; SWEDEN AB Background and Design.-The incidence and prevalence of dermatitis herpetiformis has never been formally evaluated in any area of the United States. Several northern European studies have shown prevalence rates ranging from 1.2 per 100 000 to 39.2 per 100 000. The present study was performed to evaluate the incidence and prevalence of dermatitis herpetiformis in Utah. Information from 240 patients diagnosed with dermatitis herpetiformis was compiled from hospital records throughout Utah, as well as the sole private dermatopathologist in the state, and from the university referral center of the state. Criteria for inclusion in the study were a clinical diagnosis of dermatitis herpetiformis plus granular deposition of IgA in dermal papillae by direct immunofluorescence of uninvolved skin, or histopathologic findings consistent with the disease. Clinical diagnosis and response to dapsone alone was considered insufficient for inclusion in the study. On the basis of these criteria, as well as exclusion of non-Utah residents, 188 of the original 240 patients qualified for the study. Results.-The prevalence of dermatitis herpetiformis in Utah in 1987 was 11.2 per 100 000. The mean incidence for the years 1978 through 1987 was 0.98 per 100 000 per year. The mean age at onset of symptoms for male patients was 40.1 years, and that for female patients was 36.2 years. The male-female ratio was 1.44:1. Conclusions.-This represents the first evaluation of the incidence and prevalence of dermatitis herpetiformis in the United States. These results are similar to those of the previous studies, probably because of Utah's largely northern European ancestry. This population base, plus a much smaller than average black and Oriental population, is likely to have produced a higher incidence and prevalence in Utah than would be seen in other areas of the United States. C1 UNIV UTAH,MED CTR,SCH MED,DEPT INTERNAL MED,DIV DERMATOL,50 N MED DR,SALT LAKE CITY,UT 84132. USAF HOSP,DEPT EMERGENCY,HILL AFB,UT. VET ADM MED CTR,DERMATOL SECT,SALT LAKE CITY,UT. RP ZONE, JJ (reprint author), UNIV UTAH,MED CTR,SCH MED,DEPT INTERNAL MED,DIV DERMATOL,50 N MED DR,SALT LAKE CITY,UT 84132, USA. FU NCRR NIH HHS [M01-RR-00064] NR 18 TC 35 Z9 36 U1 0 U2 1 PU AMER MEDICAL ASSOC PI CHICAGO PA 515 N STATE ST, CHICAGO, IL 60610 SN 0003-987X J9 ARCH DERMATOL JI Arch. Dermatol. PD DEC PY 1992 VL 128 IS 12 BP 1608 EP 1610 DI 10.1001/archderm.128.12.1608 PG 3 WC Dermatology SC Dermatology GA KC182 UT WOS:A1992KC18200004 PM 1456754 ER PT J AU MAGYAR, KP AF MAGYAR, KP TI BALLISTIC-MISSILES IN THE THIRD-WORLD - THREAT AND RESPONSE - CARUS,WS SO ARMED FORCES & SOCIETY LA English DT Book Review RP MAGYAR, KP (reprint author), USAF,CTR AEROSP DOCTRINE RES & EDUC,MAXWELL AFB,AL, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU TRANSACTION PERIOD CONSORTIUM PI NEW BRUNSWICK PA DEPT 3091 RUTGERS-THE STATE UNIV OF NJ, NEW BRUNSWICK, NJ 08903 SN 0095-327X J9 ARMED FORCES SOC JI Armed Forces Soc. PD WIN PY 1992 VL 18 IS 2 BP 284 EP 285 DI 10.1177/0095327X9201800215 PG 2 WC Political Science; Sociology SC Government & Law; Sociology GA HG163 UT WOS:A1992HG16300015 ER PT J AU PETERS, DR GREEN, RP AF PETERS, DR GREEN, RP TI THE PIGMENTARY DISPERSION DISORDER IN USAF AVIATORS SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID GLAUCOMA AB The pigmentary dispersion syndrome (PDS) can have serious ocular consequences. Visual changes due to glaucoma and the treatment required can threaten the high level of visual function necessary in military aviation. We reviewed the records of 50 aviators with PDS who were evaluated at the Aeromedical Consultation Service (formerly the USAF School of Aerospace Medicine) over the past 10 years. At last evaluation, 48 were still qualified to fly. Only two aviators were permanently removed from flying duties due to glaucoma. Initial intraocular pressures, cup-to-disc ratios, and refractions were not statistically correlated with progression to glaucoma, but sample sizes were small. At final evaluation, 20 of the 34 aviators with follow-up had glaucoma and required medication. Thirteen eyes underwent laser trabeculoplasty. With appropriate management, the majority of aviators with PDS were able to safely continue their flying careers. C1 USAF,MC,FS,ARMSTRONG LAB,AOCO,OPHTHALMOL BRANCH,BROOKS AFB,TX 78235. NR 13 TC 1 Z9 2 U1 0 U2 0 PU AEROSPACE MEDICAL ASSOC PI ALEXANDRIA PA 320 S HENRY ST, ALEXANDRIA, VA 22314-3579 SN 0095-6562 J9 AVIAT SPACE ENVIR MD JI Aviat. Space Environ. Med. PD DEC PY 1992 VL 63 IS 12 BP 1049 EP 1053 PG 5 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA JZ881 UT WOS:A1992JZ88100001 PM 1456914 ER PT J AU PREVIC, FH VARNER, DC GILLINGHAM, KK AF PREVIC, FH VARNER, DC GILLINGHAM, KK TI VISUAL SCENE EFFECTS ON THE SOMATOGRAVIC ILLUSION SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID DYNAMIC SPATIAL ORIENTATION; CIRCULAR VECTION AB This study attempted to determine which visual scene cues are most effective in overcoming the somatogravic illusion (SGI), a form of spatial disorientation that occurs when a shift in the resultant gravitoinertial force vector created by a sustained linear acceleration is misinterpreted as a change in pitch or bank attitude. Nine subjects were exposed to a gravitoinertial force shift of -30-degrees in the pitch plane, both with their eyes closed and while viewing computer-generated visual scenes through a wide field-of-view head-mounted display. The scenes depicted acceleration over a shoreline by means of horizon, texture, perspective, and color cues that were presented both in isolation and in various combinations. None of the scenes significantly reduced the magnitude of the SGI relative to the eyes-closed (baseline) pitch illusion, even though the textured scenes produced some linear vection. It remains to be established whether low-cost head-mounted visual displays can reliably reduce the magnitude of the SGI and other spatially disorienting illusions. C1 SW RES INST,DIV AUTOMAT & DATA SYST,SAN ANTONIO,TX 78284. RP PREVIC, FH (reprint author), ARMSTRONG LAB,DIV CREW TECHNOL,CREW SYST DIRECTORATE,FLIGHT MOT EFFECTS BRANCH,BROOKS AFB,TX 78235, USA. NR 20 TC 15 Z9 15 U1 0 U2 2 PU AEROSPACE MEDICAL ASSOC PI ALEXANDRIA PA 320 S HENRY ST, ALEXANDRIA, VA 22314-3579 SN 0095-6562 J9 AVIAT SPACE ENVIR MD JI Aviat. Space Environ. Med. PD DEC PY 1992 VL 63 IS 12 BP 1060 EP 1064 PG 5 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA JZ881 UT WOS:A1992JZ88100003 PM 1456916 ER PT J AU ANTUNANO, MJ NUNNELEY, SA AF ANTUNANO, MJ NUNNELEY, SA TI HEAT-STRESS IN PROTECTIVE CLOTHING - VALIDATION OF A COMPUTER-MODEL AND THE HEAT-HUMIDITY INDEX (HHI) SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article AB Ability to work while wearing protective clothing is often limited by rising body temperature. Peterson analyzed the combined effects of heat, humidity and workload using the Texas Model of Thermoregulation and suggested that environmental heat load imposed on a person wearing heavy, semipermeable clothing could be predicted using the Heat-Humidity Index (HHI = 0.5 Tdb + 0.5 Twb), where Tdb = dry bulb temperature and Twb = wet bulb temperature. Our study was designed to: 1) test the validity of this computer model; and 2) evaluate the applicability of the HHI to heavily clothed subjects working in a variety of thermal environments. Nine men wearing chemical defense clothing were each studied under eight conditions over the range Tdb = 20 - 40-degrees-C, Tbg = Tdb + 5-degrees-C, relative humidity = 9 - 75%, and oxygen uptake = 14-27 ml . kg-1 . min-1. Variables analyzed included tolerance time (TT), rectal temperature (Tre), skin temperature, heart rate (HR), weight loss, sweat rate, evaporation rate, and evaporative efficiency. Experiments were designed to last 30-180 min, and continued until Tre = 39-degrees-C except when subjective tolerance limits occurred first (12 of 72 experiments). The observed time to reach Tre = 39-degrees-C bracketed the predicted time in the more severe conditions, but the model seriously underestimated heat storage in the milder conditions. Comparison of hot-dry and warm-humid HHI subsets (20 and 30-degrees-C) showed no significant differences in TT, HR and weight loss, validating the 50:50 weighting of Tdb and Twb under these conditions. Compared to Wet Bulb Globe Temperature (WBGT), the HHI offered greater accuracy in predicting tolerance limits of heavily clothed subjects over a considerable range of environmental conditions and workloads. C1 ARMSTRONG LAB,CFTO,BROOKS AFB,SAN ANTONIO,TX 78235. NR 14 TC 9 Z9 9 U1 0 U2 1 PU AEROSPACE MEDICAL ASSOC PI ALEXANDRIA PA 320 S HENRY ST, ALEXANDRIA, VA 22314-3579 SN 0095-6562 J9 AVIAT SPACE ENVIR MD JI Aviat. Space Environ. Med. PD DEC PY 1992 VL 63 IS 12 BP 1087 EP 1092 PG 6 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA JZ881 UT WOS:A1992JZ88100008 PM 1456921 ER PT J AU CARRETTA, TR AF CARRETTA, TR TI RECENT DEVELOPMENTS IN UNITED-STATES-AIR-FORCE PILOT CANDIDATE SELECTION AND CLASSIFICATION SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Note AB Recent U.S. Air Force policy decisions regarding Specialized Undergraduate Pilot Training (SUPT) have eliminated the need to classify pilot candidates into training specialties prior to entering primary let training. Under the new system, specialized training assignments will occur at the completion of primary jet training and will be based on flying and academic performance, student preferences, and aircraft availability. Another significant change to the SUPT program was the development of a refined pilot candidate selection model that reduced potential threats to test compromise and gaming strategies. RP CARRETTA, TR (reprint author), ARMSTRONG LAB,HUMAN RESOURCES DIRECTORATE,HRMAA,BROOKS AFB,TX 78235, USA. NR 9 TC 16 Z9 17 U1 1 U2 2 PU AEROSPACE MEDICAL ASSOC PI ALEXANDRIA PA 320 S HENRY ST, ALEXANDRIA, VA 22314-3579 SN 0095-6562 J9 AVIAT SPACE ENVIR MD JI Aviat. Space Environ. Med. PD DEC PY 1992 VL 63 IS 12 BP 1112 EP 1114 PG 3 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA JZ881 UT WOS:A1992JZ88100014 PM 1456926 ER PT J AU GAHL, WA CHARNAS, L MARKELLO, TC BERNARDINI, I ISHAK, KG DALAKAS, MC AF GAHL, WA CHARNAS, L MARKELLO, TC BERNARDINI, I ISHAK, KG DALAKAS, MC TI PARENCHYMAL ORGAN CYSTINE DEPLETION WITH LONG-TERM CYSTEAMINE THERAPY SO BIOCHEMICAL MEDICINE AND METABOLIC BIOLOGY LA English DT Article ID NEPHROPATHIC CYSTINOSIS; CHILDREN; ACID; PHOSPHOCYSTEAMINE; COMPLICATIONS; INSUFFICIENCY; TRANSPORT; LYSOSOMES; FRACTIONS; PATIENT C1 NINCDS,BETHESDA,MD 20892. USAF,DEPT HEPAT PATHOL,WASHINGTON,DC 20306. RP GAHL, WA (reprint author), NICHHD,HUMAN GENET BRANCH,HUMAN BIOCHEM GENET SECT,BETHESDA,MD 20892, USA. NR 35 TC 47 Z9 48 U1 0 U2 1 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0885-4505 J9 BIOCHEM MED METAB B PD DEC PY 1992 VL 48 IS 3 BP 275 EP 285 DI 10.1016/0885-4505(92)90074-9 PG 11 WC Biochemistry & Molecular Biology; Medicine, Research & Experimental SC Biochemistry & Molecular Biology; Research & Experimental Medicine GA KE920 UT WOS:A1992KE92000012 PM 1476793 ER PT J AU HOLODNICK, SE GOLDBLUM, DK MAASSAB, HF MANCY, KH AF HOLODNICK, SE GOLDBLUM, DK MAASSAB, HF MANCY, KH TI DETECT VIRUS ACTIVITY WITH A BIOFILM SENSOR SO CHEMTECH LA English DT Article ID SELECTIVE MEMBRANE-ELECTRODE; ENZYME ELECTRODE; BACTERIAL C1 USAF,WASHINGTON,DC 20330. RP HOLODNICK, SE (reprint author), GELMAN SCI INC,600 S WAGNER RD,ANN ARBOR,MI 48106, USA. NR 15 TC 2 Z9 2 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0009-2703 J9 CHEMTECH JI Chemtech PD DEC PY 1992 VL 22 IS 12 BP 738 EP 741 PG 4 WC Chemistry, Applied SC Chemistry GA KB927 UT WOS:A1992KB92700008 ER PT J AU LITTLE, RR WIEDMEYER, HM ENGLAND, JD WILKE, AL ROHLFING, CL WIANS, FH JACOBSON, JM ZELLMER, V GOLDSTEIN, DE AF LITTLE, RR WIEDMEYER, HM ENGLAND, JD WILKE, AL ROHLFING, CL WIANS, FH JACOBSON, JM ZELLMER, V GOLDSTEIN, DE TI INTERLABORATORY STANDARDIZATION OF MEASUREMENTS OF GLYCOHEMOGLOBINS SO CLINICAL CHEMISTRY LA English DT Article DE DIABETES; CALIBRATION; INTERMETHOD COMPARISON ID GLYCOSYLATED HEMOGLOBIN; GLYCATED HEMOGLOBIN; AFFINITY-CHROMATOGRAPHY; GLUCOSE; A1C AB The diversity of methods used to measure glycohemoglobins (GHb) makes it difficult to compare patients' results among laboratories. We reported previously the feasibility of providing comparable results from different assays by use of common calibrators. We here compare results from seven different GHb methods calibrated by use of hemolysates assayed by a precise ion-exchange high-performance liquid-chromatographic (HPLC) method for hemoglobin A1c (HbA1c). Thus, regardless of the GHb species measured by the seven methods, results were referenced to the HbA1c content of the calibrators. Without this calibration, GHb values for single samples varied, e.g., from 4.0% to 8.1% and from 10% to 14.2% in the normal and high ranges, respectively. Calibration decreased between-method variability (single sample ranges of, e.g., 4.8% to 5.4% and 9.4% to 10.2% in the normal and high ranges, respectively) and improved interassay precision. We conclude that this approach to calibration of GHb measurements allows direct comparison of results obtained by different methods and improves precision. C1 UNIV MISSOURI, SCH MED, DEPT PATHOL, COLUMBIA, MO 65212 USA. WILFORD HALL USAF MED CTR, DEPT PATHOL, LACKLAND AFB, TX 78236 USA. WILFORD HALL USAF MED CTR, DEPT ENDOCRINOL, LACKLAND AFB, TX 78236 USA. RP LITTLE, RR (reprint author), UNIV MISSOURI, SCH MED, DEPT CHILD HLTH, 1 HOSP DR, COLUMBIA, MO 65212 USA. OI Little, Randie/0000-0001-6450-8012 NR 22 TC 108 Z9 112 U1 1 U2 2 PU AMER ASSOC CLINICAL CHEMISTRY PI WASHINGTON PA 2101 L STREET NW, SUITE 202, WASHINGTON, DC 20037-1526 USA SN 0009-9147 EI 1530-8561 J9 CLIN CHEM JI Clin. Chem. PD DEC PY 1992 VL 38 IS 12 BP 2472 EP 2478 PG 7 WC Medical Laboratory Technology SC Medical Laboratory Technology GA KD011 UT WOS:A1992KD01100024 PM 1458587 ER PT J AU BERKHEIMER, WR YODER, BA AF BERKHEIMER, WR YODER, BA TI POTENTIAL FOR ADVERSE OUTCOMES IN NEWBORNS DISCHARGED AT LESS THAN 48 HOURS SO CLINICAL RESEARCH LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,DEPT PEDIAT,LACKLAND AFB,TX 78236. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SLACK INC PI THOROFARE PA 6900 GROVE RD, THOROFARE, NJ 08086 SN 0009-9279 J9 CLIN RES JI Clin. Res. PD DEC PY 1992 VL 40 IS 4 BP A793 EP A793 PG 1 WC Medicine, Research & Experimental SC Research & Experimental Medicine GA KE141 UT WOS:A1992KE14100122 ER PT J AU DICKEY, LA CHEU, HW YODER, BA NULL, DM AF DICKEY, LA CHEU, HW YODER, BA NULL, DM TI FACTORS ASSOCIATED WITH SURVIVAL AMONG NEONATES REQUIRING CARDIOPULMONARY-RESUSCITATION BEFORE EXTRACORPOREAL MEMBRANE-OXYGENATION SO CLINICAL RESEARCH LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SLACK INC PI THOROFARE PA 6900 GROVE RD, THOROFARE, NJ 08086 SN 0009-9279 J9 CLIN RES JI Clin. Res. PD DEC PY 1992 VL 40 IS 4 BP A838 EP A838 PG 1 WC Medicine, Research & Experimental SC Research & Experimental Medicine GA KE141 UT WOS:A1992KE14100365 ER PT J AU GARSCADDEN, A AF GARSCADDEN, A TI COMPUTER DATABASE IMPROVES WARD PRODUCTIVITY SO CLINICAL RESEARCH LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SLACK INC PI THOROFARE PA 6900 GROVE RD, THOROFARE, NJ 08086 SN 0009-9279 J9 CLIN RES JI Clin. Res. PD DEC PY 1992 VL 40 IS 4 BP A842 EP A842 PG 1 WC Medicine, Research & Experimental SC Research & Experimental Medicine GA KE141 UT WOS:A1992KE14100385 ER PT J AU GREENBERG, DN ASCHER, DP HENSLEY, D YODER, BA AF GREENBERG, DN ASCHER, DP HENSLEY, D YODER, BA TI ARE URINE ANTIGEN TESTS FOR GROUP-B STREPTOCOCCUS EQUALLY SENSITIVE SO CLINICAL RESEARCH LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SLACK INC PI THOROFARE PA 6900 GROVE RD, THOROFARE, NJ 08086 SN 0009-9279 J9 CLIN RES JI Clin. Res. PD DEC PY 1992 VL 40 IS 4 BP A852 EP A852 PG 1 WC Medicine, Research & Experimental SC Research & Experimental Medicine GA KE141 UT WOS:A1992KE14100441 ER PT J AU HALL, BH YODER, BA AF HALL, BH YODER, BA TI PREDICTION OF THE NEED FOR EXTRACORPOREAL MEMBRANE-OXYGENATION IN INFANTS WITH SEVERE MECONIUM ASPIRATION SYNDROME BEING TREATED WITH HIGH-FREQUENCY OSCILLATORY VENTILATION SO CLINICAL RESEARCH LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SLACK INC PI THOROFARE PA 6900 GROVE RD, THOROFARE, NJ 08086 SN 0009-9279 J9 CLIN RES JI Clin. Res. PD DEC PY 1992 VL 40 IS 4 BP A826 EP A826 PG 1 WC Medicine, Research & Experimental SC Research & Experimental Medicine GA KE141 UT WOS:A1992KE14100298 ER PT J AU JONES, WS HALL, BH SMALLEY, JR ASCHER, DA SCHELONKA, RL BUTZIN, CA AF JONES, WS HALL, BH SMALLEY, JR ASCHER, DA SCHELONKA, RL BUTZIN, CA TI IMMUNIZATION STATUS OF PRESCHOOL-AGE CHILDREN IN A MILITARY HEALTH-CARE CLINIC SO CLINICAL RESEARCH LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SLACK INC PI THOROFARE PA 6900 GROVE RD, THOROFARE, NJ 08086 SN 0009-9279 J9 CLIN RES JI Clin. Res. PD DEC PY 1992 VL 40 IS 4 BP A809 EP A809 PG 1 WC Medicine, Research & Experimental SC Research & Experimental Medicine GA KE141 UT WOS:A1992KE14100205 ER PT J AU LOUDER, DS BIFANO, SL BRYANT, JL GREEN, GA AF LOUDER, DS BIFANO, SL BRYANT, JL GREEN, GA TI HEMOLYSIS OF PACKED RED-BLOOD-CELL TRANSFUSIONS UNDER RADIANT-HEAT SO CLINICAL RESEARCH LA English DT Meeting Abstract C1 USAF,KESSLER MED CTR,KEESLER AFB,MS 39534. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SLACK INC PI THOROFARE PA 6900 GROVE RD, THOROFARE, NJ 08086 SN 0009-9279 J9 CLIN RES JI Clin. Res. PD DEC PY 1992 VL 40 IS 4 BP A791 EP A791 PG 1 WC Medicine, Research & Experimental SC Research & Experimental Medicine GA KE141 UT WOS:A1992KE14100110 ER PT J AU MCCURNIN, D SEIDNER, S AF MCCURNIN, D SEIDNER, S TI EFFECT OF SURFACTANT THERAPY ON DUCTAL SHUNTING IN PREMATURE BABOONS WITH HYALINE-MEMBRANE DISEASE SO CLINICAL RESEARCH LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. UNIV TEXAS,HLTH SCI CTR,SW FDN BIOMED RES,SAN ANTONIO,TX 78284. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SLACK INC PI THOROFARE PA 6900 GROVE RD, THOROFARE, NJ 08086 SN 0009-9279 J9 CLIN RES JI Clin. Res. PD DEC PY 1992 VL 40 IS 4 BP A825 EP A825 PG 1 WC Medicine, Research & Experimental SC Research & Experimental Medicine GA KE141 UT WOS:A1992KE14100293 ER PT J AU PARANKA, MS YODER, BA AF PARANKA, MS YODER, BA TI ADENOSINE-TRIPHOSPHATE (ATP) THERAPY IN A PIGLET MODEL OF GROUP-B STREPTOCOCCUS (GBS) INDUCED PULMONARY-HYPERTENSION SO CLINICAL RESEARCH LA English DT Meeting Abstract C1 USAF,MED CTR,LACKLAND AFB,TX 78236. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SLACK INC PI THOROFARE PA 6900 GROVE RD, THOROFARE, NJ 08086 SN 0009-9279 J9 CLIN RES JI Clin. Res. PD DEC PY 1992 VL 40 IS 4 BP A824 EP A824 PG 1 WC Medicine, Research & Experimental SC Research & Experimental Medicine GA KE141 UT WOS:A1992KE14100290 ER PT J AU YODER, B AF YODER, B TI RESPIRATORY COMPLICATIONS AND MECONIUM STAINED AMNIOTIC-FLUID - IMPACT OF A MODIFIED APPROACH TO TRACHEAL SUCTION SO CLINICAL RESEARCH LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,DEPT PEDIAT,LACKLAND AFB,TX 78236. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SLACK INC PI THOROFARE PA 6900 GROVE RD, THOROFARE, NJ 08086 SN 0009-9279 J9 CLIN RES JI Clin. Res. PD DEC PY 1992 VL 40 IS 4 BP A791 EP A791 PG 1 WC Medicine, Research & Experimental SC Research & Experimental Medicine GA KE141 UT WOS:A1992KE14100109 ER PT J AU SCHROEDER, RE ACKER, BJ SCHELL, MG TROYER, JE WHITAKER, NK AF SCHROEDER, RE ACKER, BJ SCHELL, MG TROYER, JE WHITAKER, NK TI ECONOMIC GRAND ROUNDS - A FORUM FOR COST CONSCIOUSNESS SO HOSPITAL & HEALTH SERVICES ADMINISTRATION LA English DT Article AB This article analyzes the implementation of a traditional Economic Grand Rounds (EGR) program in a teaching hospital. The conclusions are that the original concepts of EGR-presentations of treatment costs by clinicians in a grand rounds setting, reinforcement of agreed changes in practice patterns, and subsequent evaluation and participation-are still valid but are inadequate to ensure a successful program. Other factors must be added if EGR is to attain its goals. These factors are administrative and nursing involvement, a provision to make policy changes, and incentives for the medical staff. This article also outlines areas of potential savings achieved through an EGR program in laboratory testing, preoperative laboratory testing, and intravenous therapy with antibiotics. C1 USAF MALCOLM GROW MED CTR,CAMP SPRINGS,MD. USAF,PLATTSBURGH AFB,NY. WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. BRADY GREEN COMMUNITY CLIN,SAN ANTONIO,TX. RP SCHROEDER, RE (reprint author), USA,GRAD PROGRAM HLTH CARE ADM,FT SAM HOUSTON,TX 78234, USA. NR 18 TC 0 Z9 0 U1 0 U2 0 PU AMER COLL HEALTHCARE EXEC HEALTH ADMINISTRATION PRESS PI CHICAGO PA ONE NORTH FRANKLIN ST SUITE 1700, CHICAGO, IL 60606 SN 8750-3735 J9 HOSP HEALTH SERV ADM JI Hosp. Health Serv. Adm. PD WIN PY 1992 VL 37 IS 4 BP 491 EP 502 PG 12 WC Health Policy & Services SC Health Care Sciences & Services GA JX377 UT WOS:A1992JX37700006 PM 10171277 ER PT J AU PYATI, VP AF PYATI, VP TI AN EXACT EXPRESSION FOR THE NOISE VOLTAGE ACROSS A RESISTOR SHUNTED BY A CAPACITOR SO IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS LA English DT Note AB The mean square voltage developed across a noisy resistor (R) with a white spectral density shunted by a capacitor (C) is known to be (kT/C), where k is Boltzmann's constant and T the absolute temperature of R. A puzzling aspect of this simple result is that the value of the resistor (which is the real source of noise) appears to play no part and gives no clue on the outcome in the limiting cases of R --> 0 or C --> 0. The difficulty is resolved by first noting that due to quantum effects, the simple white noise model breaks down at frequencies of 109 Hz or so. Using a quantum-corrected expression for the spectral density, the problem of the RC network has been reworked exactly. It is verified that the new expression yields correct results for all values of the parameters. A Taylor series expansion of the output in terms of the noise equivalent bandwidth of the RC circuit shows that the old result (kT / C) is very accurate for bandwidths or up to tens of GHz. Numerical results are illustrated graphically. RP PYATI, VP (reprint author), USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,WRIGHT PATTERSON AFB,OH 45433, USA. NR 6 TC 2 Z9 2 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 1057-7122 J9 IEEE T CIRCUITS-I JI IEEE Trans. Circuits Syst. I-Fundam. Theor. Appl. PD DEC PY 1992 VL 39 IS 12 BP 1027 EP 1029 DI 10.1109/81.207729 PG 3 WC Engineering, Electrical & Electronic SC Engineering GA KX386 UT WOS:A1992KX38600010 ER PT J AU FREDERICKSON, AR HOLEMAN, EG MULLEN, EG AF FREDERICKSON, AR HOLEMAN, EG MULLEN, EG TI CHARACTERISTICS OF SPONTANEOUS ELECTRICAL DISCHARGING OF VARIOUS INSULATORS IN SPACE RADIATIONS SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article; Proceedings Paper CT 29TH IEEE ANNUAL INTERNATIONAL NUCLEAR AND SPACE RADIATION EFFECTS CONF AND SHORT COURSE CY JUL 13-17, 1992 CL NEW ORLEANS, LA SP IEEE, RADIAT EFFECTS COMM AB Sixteen samples of standard insulating materials with electrodes were exposed to the full variety of the Earth's space radiation belts on the CRRES satellite for 14 months. Spontaneous discharges were recorded for each sample and are compared to the radiation levels which were simultaneously monitored. Samples with the most exposed insulator surface (not metalized) pulsed most frequently. Most of the pulses were less than 50 volts on 50 ohms. Pulsing correlated weakly with electron flux, but no correlation with proton flux could be discerned. The pulse rate per unit electron flux was initially small, rose continuously for 7 months, and then fell slightly during the last seven months. The pulsing rate decayed when the satellite left the electron belts. The decay became more rapid after 7 months. There seem to be two kinds of pulses which exhibit differing statistics. One kind dominated during the first seven months, the other during the last seven months. This may be related to the fact that it took several months for electric fields in the samples to approach steady state levels. A computer simulation predicts the temporal charging of the insulators by the high energy electron flux. C1 BOSTON COLL,CHESTNUT HILL,MA 02167. RP FREDERICKSON, AR (reprint author), USAF,DIV SPACE PHYS,PHILLIPS LAB,BEDFORD,MA 01731, USA. NR 17 TC 58 Z9 60 U1 1 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD DEC PY 1992 VL 39 IS 6 BP 1773 EP 1782 DI 10.1109/23.211366 PN 1 PG 10 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA KM885 UT WOS:A1992KM88500029 ER PT J AU CARPER, WR PFLUG, JL WILKES, JS AF CARPER, WR PFLUG, JL WILKES, JS TI DUAL SPIN PROBE NMR RELAXATION STUDIES OF IONIC STRUCTURE IN 1-ETHYL-3-METHYLIMIDAZOLIUM CHLORIDE-ALCL3 MOLTEN-SALTS SO INORGANICA CHIMICA ACTA LA English DT Article ID ALUMINUM; LIQUIDS; SPECTROSCOPY AB Room temperature molten salts consisting of 1-ethyl-3-methylimidazolium chloride (MEICl), AlCl3 and NaCl are of interest as electrochemical agents. Results of Al-27 and C-13 NMR dual spin probe (DSP) relaxation studies of these ionic ligands support the existence of interactions between MEI+ and AlCl4-. The dual spin probe method is used to determine liquid state quadrupole coupling constants of 0.821 and 2.10 MHz for the neutral (MEICl=AlCl3) and neutral buffered (Na+0.22MEI+0.78AlCl4-) melts. C1 USAF ACAD,FRANK J SEILER RES LAB,COLORADO SPRINGS,CO 80840. RP CARPER, WR (reprint author), WICHITA STATE UNIV,DEPT CHEM,WICHITA,KS 67208, USA. NR 25 TC 13 Z9 13 U1 9 U2 11 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0020-1693 J9 INORG CHIM ACTA JI Inorg. Chim. Acta PD DEC 1 PY 1992 VL 202 IS 1 BP 89 EP 93 DI 10.1016/S0020-1693(00)85356-6 PG 5 WC Chemistry, Inorganic & Nuclear SC Chemistry GA KC626 UT WOS:A1992KC62600016 ER PT J AU DAS, NC DUGGAN, PWC NATHAN, V AF DAS, NC DUGGAN, PWC NATHAN, V TI ANNEALING CHARACTERISTICS OF HOT CARRIER INDUCED DAMAGE IN N-CHANNEL MOSFETS SO INTERNATIONAL JOURNAL OF ELECTRONICS LA English DT Article ID VARYING THERMAL ENVIRONMENT; SI-SIO2 INTERFACE; TRAPPED HOLES; ELECTRONS; TRANSISTORS; SILICON; STATES; CHARGE AB The recovery process of hot carrier induced degraded device parameters in n-channel MOSFETs has been analysed by both isothermal and isochronal annealing. A wide distribution of activation energies of hot carrier induced damage, with a peak at around 0.9 eV is observed. It can be seen that isochronal annealing has advantages over isothermal annealing in recovering the degraded device characteristics in comparatively less time. Bias annealing of the device reveals that initially the annealing of trapped oxide charges increases the interface state density, after reaching the peak value interface states anneal as a logarithmic function of time. The energy distribution of hot carrier induced interface states is similar to radiation induced interface states after a few hours of annealing at room temperature. RP DAS, NC (reprint author), USAF, PHILLIPS LAB, KIRTLAND AFB, NM 87117 USA. NR 20 TC 2 Z9 2 U1 1 U2 1 PU TAYLOR & FRANCIS LTD PI ABINGDON PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND SN 0020-7217 EI 1362-3060 J9 INT J ELECTRON JI Int. J. Electron. PD DEC PY 1992 VL 73 IS 6 BP 1201 EP 1213 DI 10.1080/00207219208925789 PG 13 WC Engineering, Electrical & Electronic SC Engineering GA KH979 UT WOS:A1992KH97900010 ER PT J AU HOSMER, C AF HOSMER, C TI DEALING WITH DRUGS SO ISSUES IN SCIENCE AND TECHNOLOGY LA English DT Letter C1 USAF,WASHINGTON,DC 20330. FLORIDA STATE UNIV,TALLAHASSEE,FL 32306. NR 1 TC 0 Z9 0 U1 0 U2 0 PU NATL ACAD PRESS PI WASHINGTON PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 SN 0748-5492 J9 ISSUES SCI TECHNOL JI Issues Sci. Technol. PD WIN PY 1992 VL 8 IS 2 BP 10 EP 11 PG 2 WC Engineering, Multidisciplinary; Engineering, Industrial; Multidisciplinary Sciences; Social Issues SC Engineering; Science & Technology - Other Topics; Social Issues GA GZ168 UT WOS:A1992GZ16800010 ER PT J AU TIRRE, WC PENA, CM AF TIRRE, WC PENA, CM TI INVESTIGATION OF FUNCTIONAL WORKING MEMORY IN THE READING SPAN TEST SO JOURNAL OF EDUCATIONAL PSYCHOLOGY LA English DT Article ID INDIVIDUAL-DIFFERENCES; TERM-MEMORY; KNOWLEDGE; CAPACITY; TEXT AB Two issues were investigated in 2 experiments: (a) the validity of a reading span test that combined a knowledge verification task with a secondary task of word memorization and (b) the hypothesis that word recall reflects the amount of working memory that is functional in reading. In Experiment 1 the validity and reliability of the reading span measure were determined. In Experiment 2 it was reasoned that if word recall reflected functional working memory in reading, then 2 results should be observed. The first predicted result was that prior exposure to sentences used in the reading span test would release working memory resources and improve word recall. The second was that word recall, though correlated with general working memory and verbal knowledge measures, would add to these scores in predicting comprehension. Both sets of results were obtained, supporting the hypothesis that the reading span test measures functional working memory in reading. RP TIRRE, WC (reprint author), ARMSTRONG LAB,HUMAN RESOURCES DIRECTORATE,BLDG 578,BROOKS AFB,TX 78235, USA. NR 32 TC 35 Z9 35 U1 0 U2 2 PU AMER PSYCHOLOGICAL ASSOC PI WASHINGTON PA 750 FIRST ST NE, WASHINGTON, DC 20002-4242 SN 0022-0663 J9 J EDUC PSYCHOL JI J. Educ. Psychol. PD DEC PY 1992 VL 84 IS 4 BP 462 EP 472 DI 10.1037/0022-0663.84.4.462 PG 11 WC Psychology, Educational SC Psychology GA JZ603 UT WOS:A1992JZ60300010 ER PT J AU JAIN, VK GOETZ, RL LOMBARD, CM AF JAIN, VK GOETZ, RL LOMBARD, CM TI APPLICATIONS OF COMPUTER METHODS TO THE DESIGN AND ANALYSIS OF PRECISION RIB WEB FORGINGS SO JOURNAL OF MATERIALS PROCESSING TECHNOLOGY LA English DT Article ID FORMING PROCESSES; DEFORMATION; CURVES AB The flow behavior of metals under processing conditions is characterized by the relationship between the flow stress and the processing variables, namely, the temperature, the strain rate, and the strain. Hot, isothermal, constant-strain-rate compression tests were conducted to generate flow-stress data for Al 2024-0. A rigid-viscoplastic finite-element code, ALPID, was used to simulate the closed-die, flashless, near-net-shape isothermal forging of a rib-web section, viz., a T-section. The metal-flow behavior was studied by examining the distribution of effective strain, strain rate, and stress. Flow lines were generated using ALPID and compared with those in macro-etched sections of forged components. Regions prone to shear-band formation were identified using flow-net grids and verified by optical microscopy of the forged sections. The analytical values of forging loads were compared with those measured experimentally. C1 UES INC,DAYTON,OH 45432. USAF,WRIGHT AERONAUT LABS,MAT DIRECTORATE WL MLLN,WRIGHT PATTERSON AFB,OH 45433. RP JAIN, VK (reprint author), UNIV DAYTON,DEPT MECH & AEROSP ENGN,DAYTON,OH 45469, USA. NR 16 TC 1 Z9 1 U1 1 U2 1 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0924-0136 J9 J MATER PROCESS TECH JI J. Mater. Process. Technol. PD DEC PY 1992 VL 36 IS 1 BP 1 EP 16 DI 10.1016/0924-0136(92)90234-J PG 16 WC Engineering, Industrial; Engineering, Manufacturing; Materials Science, Multidisciplinary SC Engineering; Materials Science GA KF054 UT WOS:A1992KF05400001 ER PT J AU MCKINNEY, LC GALLIN, EK AF MCKINNEY, LC GALLIN, EK TI G-PROTEIN ACTIVATORS INDUCE A POTASSIUM CONDUCTANCE IN MURINE MACROPHAGES SO JOURNAL OF MEMBRANE BIOLOGY LA English DT Article DE MACROPHAGE; J774-CELLS; POTASSIUM CHANNEL; POTASSIUM CONDUCTANCE; IONIC CURRENT; G-PROTEIN ID HUMAN POLYMORPHONUCLEAR LEUKOCYTES; CELL-LINE J774.1; HUMAN-NEUTROPHILS; K+ CONDUCTANCE; CHANNELS; RECEPTOR; CURRENTS; INWARD; PURIFICATION; QUINIDINE AB The whole-cell patch clamp technique was used to test whether intracellular application of G-protein activators affect ionic currents in murine macrophages. Both the J774.1 macrophage-like cell line and primary bone marrow derived macrophages were used. Cells were bathed in Na Hanks' solution and intracellularly dialyzed (via the patch pipette) with K Hanks (145 mm KCl, < 100 nm Ca) plus or minus the G-protein activators GTPgammaS (10 mum), GppNHp (10 mum), or AlF4- (200 mum AlCl3 + 5 mm KF). In the absence of G-protein activators, only two K currents, an inwardly rectifying K current (K(ir)) and an outward, inactivating K current (K(o)) were observed. In the presence of G-protein activators, two effects were observed: (i) the K(ir) conductance, which is stable for up to 30 min under control conditions, decayed twice as fast and (ii) an outwardly rectifying, noninactivating current appeared. The induced outward current appeared < 2 min after attaining the whole-cell patch clamp configuration. The current could be distinguished from the K(ir) and K(o) currents on the basis of its direction of rectification (outward), barium sensitivity (> 1 mm), and kinetics (no time-dependent inactivation). Intracellular application of GTP (500 mum), GDP (500 mum), cAMP (100 mum + 0.5 mm ATP), or IP3 (20 mum) did not induce the current; 100 mum ATPgammaS activated a half-maximal amount of current. Induction of outward current by 10 mum GTPgammaS could be prevented by pre-exposing cells to pertussis toxin but not cholera toxin. This current is K selective since (i) its induction was accompanied by hyperpolarization of the cell toward E(K), even after K(ir) had ''washed out'', (ii) it was present after > 90% of both intracellular and extracellular Cl were replaced by isethionate, and (iii) the induced outward conductance was absent when K(i) was completely replaced by Cs, and was reduced by approximately 1/3 when [K]i was reduced by 1/3. Quinidine (1 mM) and 4-aminopyridine (10 mm) inhibited the current, but apamin (1 mum) and charybdotoxin (I mum) did not. RP MCKINNEY, LC (reprint author), USAF,RADIOBIOL RES INST,DEPT PHYSIOL,BETHESDA,MD 20889, USA. NR 45 TC 26 Z9 26 U1 0 U2 0 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0022-2631 J9 J MEMBRANE BIOL JI J. Membr. Biol. PD DEC PY 1992 VL 130 IS 3 BP 265 EP 276 PG 12 WC Biochemistry & Molecular Biology; Cell Biology; Physiology SC Biochemistry & Molecular Biology; Cell Biology; Physiology GA KE644 UT WOS:A1992KE64400006 PM 1491429 ER PT J AU BAI, SJ SPRY, RJ ZELMON, DE RAMABADRAN, U JACKSON, J AF BAI, SJ SPRY, RJ ZELMON, DE RAMABADRAN, U JACKSON, J TI OPTICAL ANISOTROPY OF POLYMERIC FILMS MEASURED BY WAVE-GUIDE PROPAGATION MODE DETERMINATION SO JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS LA English DT Article DE POLY(P-PHENYLENEBENZOBISTHIAZOLE); MYLAR; POLYMERIC FILM; WAVE-GUIDE; REFRACTIVE INDEX; LINEAR ATTENUATION COEFFICIENT; OPTICAL ANISOTROPY ID PARA-AROMATIC POLYMERS; RIGID-ROD POLYMERS; PHENYLENE BENZOBISTHIAZOLE; MOLECULAR COMPOSITES; THERMAL-PROPERTIES; ORGANIC-MOLECULES; REFRACTIVE-INDEX; MAIN CHAIN; UNITS; POLY(ETHYLENE-TEREPHTHALATE) AB Extruded thin films of a liquid-crystalline charge-conjugated rigid-rod polymer poly (p -phenylenebenzobisthiazole), PBT, and a semicrystalline thermoplastic polyethylene-terephthalate (Mylar) were fabricated and examined for film thickness, refractive index, and linear attenuation coefficient. Optical waveguide modes were successfully induced on the polymeric films using a prism coupler at lambda = 633 and 1300 nm. Highly consistent thickness values were obtained for the polymeric films. In addition, the anisotropic nature of the optical properties was determined using TE and TM propagation modes. A refractive index as high as 2.3 was observed on PBT film. The refractive index data suggested that the PBT and Mylar films were optically anisotropic with refractive indices n(perpendicular-to) (out-of-plane) invariably smaller than n(parallel-to) (in-plane). Large anisotropy was also discovered in the linear attenuation coefficient alpha, with alpha(perpendicular-to)/alpha(parallel-to) almost-equal-to 50 for the Mylar films. Complementary polarimetric and spectroscopic interference measurements were also applied to investigate the optical anisotropy of the extruded polymeric films. C1 WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. METRICON CORP,PENNINGTON,NJ 08534. SYSTRAN CO,DAYTON,OH 45432. RP BAI, SJ (reprint author), UNIV DAYTON,RES INST,DAYTON,OH 45469, USA. NR 36 TC 27 Z9 27 U1 1 U2 5 PU JOHN WILEY & SONS INC PI NEW YORK PA 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0887-6266 J9 J POLYM SCI POL PHYS JI J. Polym. Sci. Pt. B-Polym. Phys. PD DEC PY 1992 VL 30 IS 13 BP 1507 EP 1514 DI 10.1002/polb.1992.090301309 PG 8 WC Polymer Science SC Polymer Science GA JX758 UT WOS:A1992JX75800009 ER PT J AU BAI, SJ DOTRONG, M EVERS, RC AF BAI, SJ DOTRONG, M EVERS, RC TI BULK RIGID-ROD MOLECULAR COMPOSITES OF ARTICULATED ROD COPOLYMERS WITH THERMOPLASTIC PENDANTS SO JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS LA English DT Article DE ARTICULATED RIGID ROD; GRAFTED THERMOPLASTIC; COPOLYMER; MOLECULAR COMPOSITE; PHASE SEPARATION; CONSOLIDATION; ASPECT RATIO; HALPIN-TSAI EQUATION; 3-DIMENSIONALLY ISOTROPIC PROPERTIES ID PARA-AROMATIC POLYMERS; THERMAL-PROPERTIES; MAIN CHAIN; UNITS; 2,6-BENZOBISTHIAZOLE; 2,6-BENZOBISOXAZOLE; COILS AB Bulk rigid-rod molecular composites were successfully obtained by powder consolidation of a copolymer containing both the reinforcing rigid-rod segments and the thermoplastic matrix. By chemically linking the reinforcing segments and the matrix molecule, the copolymer was designed to minimize phase separation in the molecular composite. The copolymer was an articulated rigid-rod poly (p-phenylenebenzobisthiazole), aPBT, with an aromatic poly(ether ketone), mPEK, thermoplastic pendant grafted at the points of articulation. The copolymer powder was pre-formed and compression molded at an elevated temperature, which resulted in bulk rigid-rod molecular composites with three-dimensionally isotropic properties. Compared to the neat mPEK homopolymer, significant increases in glass transition temperature T(g) and tensile properties have been realized for the aPBT-g(mPEK) copolymers with low rod content. Taking into account the aspect ratio of the aPBT, the bulk rigid-rod molecular composite showed a tensile modulus as predicted by the Halpin-Tsai equation. In addition, x-ray scattering revealed minimal rod aggregation. However, for the copolymer of higher rod content, significant phase separation was observed in the copolymer powder, which resulted in a decrease in T(g) as well as reinforcement efficiency of the bulk rigid-rod molecular composite as compared to those derived from the copolymers of low rod content. C1 WRIGHT LAB,MAT DIRECTORATE,POLYMER BRANCH,WRIGHT PATTERSON AFB,OH 45433. RP BAI, SJ (reprint author), UNIV DAYTON,RES INST,DAYTON,OH 45469, USA. NR 27 TC 14 Z9 14 U1 0 U2 2 PU JOHN WILEY & SONS INC PI NEW YORK PA 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0887-6266 J9 J POLYM SCI POL PHYS JI J. Polym. Sci. Pt. B-Polym. Phys. PD DEC PY 1992 VL 30 IS 13 BP 1515 EP 1525 DI 10.1002/polb.1992.090301310 PG 11 WC Polymer Science SC Polymer Science GA JX758 UT WOS:A1992JX75800010 ER PT J AU SORENSON, DS AF SORENSON, DS TI AMERICA ENTANGLED - THE PERSIAN GULF CRISIS AND ITS CONSEQUENCES - CARPENTER,TG SO JOURNAL OF STRATEGIC STUDIES LA English DT Book Review RP SORENSON, DS (reprint author), US AIR WAR COLL,MAXWELL AFB,AL, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU FRANK CASS CO LTD PI LONDON PA 11 GAINSBOROUGH ROAD, LONDON, ENGLAND E11 1RS SN 0140-2390 J9 J STRATEGIC STUD JI J. Strateg. Stud. PD DEC PY 1992 VL 15 IS 4 BP 582 EP 583 PG 2 WC International Relations; Political Science SC International Relations; Government & Law GA KT282 UT WOS:A1992KT28200008 ER PT J AU PHILLIPS, TH ZEIDMAN, EJ THOMPSON, IM AF PHILLIPS, TH ZEIDMAN, EJ THOMPSON, IM TI THE FATE OF BURIED VAGINAL EPITHELIUM SO JOURNAL OF UROLOGY LA English DT Article DE EPITHELIUM; URINARY INCONTINENCE; VAGINA ID URINARY-INCONTINENCE AB A new technique in the treatment of stress urinary incontinence utilizes a sling fashioned from a rectangular island of buried vaginal epithelium. We developed a model to study the natural history of vaginal wall covered by an epithelial flap in 12 rabbits sacrificed at intervals to 26 weeks. Histopathologic examination demonstrated an immediate acute inflammatory reaction. This early response was followed by formation of an epithelial lining of the potential space overlying the buried vaginal tissue. Acute inflammatory cells continued to enter this lumen until week 20, when granulomas were first detected. Histopathologic examination at twenty-six weeks showed stratified squamous epithelium lining the lumen. No deleterious inflammatory sequelae were detected, and no dysplastic or malignant changes were identified. These results suggest that buried vaginal epithelium is a safe (short term) tissue alternative for sling creation. C1 BROOKE ARMY MED CTR,UROL SURG SERV,FT SAM HOUSTON,TX 78234. WILFORD HALL USAF MED CTR,SAN ANTONIO,TX. NR 7 TC 6 Z9 6 U1 0 U2 0 PU WILLIAMS & WILKINS PI BALTIMORE PA 351 WEST CAMDEN ST, BALTIMORE, MD 21201-2436 SN 0022-5347 J9 J UROLOGY JI J. Urol. PD DEC PY 1992 VL 148 IS 6 BP 1941 EP 1943 PG 3 WC Urology & Nephrology SC Urology & Nephrology GA JZ904 UT WOS:A1992JZ90400073 PM 1433650 ER PT J AU DIVELY, RW AF DIVELY, RW TI CORROSION OF CULVERTS SO MATERIALS PERFORMANCE LA English DT Article AB A recent failure of a bituminously coated, corrugated-metal pipe culvert prompted a survey of all culverts at Cape Canaveral Air Force Station. Results of a failure analysis and a survey were used to determine the cause of failure and the optimum material choice for culverts' remedial work and future design specifications. RP DIVELY, RW (reprint author), JOHNSON CONTROLS WORLD SERV INC,POB 4608,MU LBS 6380,PATRICK AFB,FL 32925, USA. NR 6 TC 0 Z9 0 U1 1 U2 1 PU NATL ASSN CORROSION ENG PI HOUSTON PA 1440 SOUTH CREEK DRIVE, HOUSTON, TX 77084-4906 SN 0094-1492 J9 MATER PERFORMANCE JI Mater. Perform. PD DEC PY 1992 VL 31 IS 12 BP 47 EP 50 PG 4 WC Materials Science, Characterization & Testing SC Materials Science GA KD076 UT WOS:A1992KD07600012 ER PT J AU FARR, WD AF FARR, WD TI IMPORTANT AMSUS ANNIVERSARIES SO MILITARY MEDICINE LA English DT Article AB The article discusses important upcoming anniversaries of the historical development of the modem day Association of Military Surgeons of the United States (AMSUS) and its medical journal Military Medicine. It does this through chronicling the successive, antecedent military medical and dental associations and their journals which amalgamated to form AMSUS. It follows the development of the Association and the journal from the oldest constituent society. RP FARR, WD (reprint author), ARMSTRONG LAB,DIV CLIN SCI,BROOKS AFB,TX 78235, USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU ASSN MILITARY SURG US PI BETHESDA PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 SN 0026-4075 J9 MIL MED JI Milit. Med. PD DEC PY 1992 VL 157 IS 12 BP 664 EP 666 PG 3 WC Medicine, General & Internal SC General & Internal Medicine GA KB925 UT WOS:A1992KB92500022 PM 1470381 ER PT J AU CALHOUN, BC BOMBARD, AT AF CALHOUN, BC BOMBARD, AT TI IMPROVING EMERGENCY TRANSPORT FOR PATIENT ACCESS AND RESIDENCY TRAINING SO MILITARY MEDICINE LA English DT Letter RP CALHOUN, BC (reprint author), USAF,MED CTR,DEPT OBSTET & GYNECOL,DIV OBSTET,KEESLER AFB,MS 39534, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ASSN MILITARY SURG US PI BETHESDA PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 SN 0026-4075 J9 MIL MED JI Milit. Med. PD DEC PY 1992 VL 157 IS 12 BP A7 EP A7 PG 1 WC Medicine, General & Internal SC General & Internal Medicine GA KB925 UT WOS:A1992KB92500005 PM 1470366 ER PT J AU MAIMAN, DJ PINTAR, FA YOGANANDAN, N REINARTZ, J TOSELLI, R WOODWARD, E HAID, R AF MAIMAN, DJ PINTAR, FA YOGANANDAN, N REINARTZ, J TOSELLI, R WOODWARD, E HAID, R TI PULL-OUT STRENGTH OF CASPAR CERVICAL SCREWS SO NEUROSURGERY LA English DT Article DE ANTERIOR CERVICAL FUSION; BIOMECHANICS; CERVICAL PLATING; CERVICAL SPINE INJURY; SPINE TUMORS ID PLATE STABILIZATION; SPINE; FUSION; INJURIES; DISLOCATIONS; BIOMECHANICS; FIXATION; SYSTEM AB ANTERIOR CERVICAL INSTRUMENTATION as an adjunct to bone fusion has an important role in cervical spine surgery. Posterior vertebral body cortex purchase is strongly recommended in the use of the Caspar system, although few biomechanical data exist to validate this requirement. In this study, Caspar screws were placed in 43 human cadaveric cervical vertebral bodies, either putting them into the posterior vertebral cortex as identified radiographically or penetrating it by 2 mm as recommended in the literature. Pull-out tests were conducted with tension applied to a connected plate at 0.25 mm/s, and force-deformation data were obtained. Failure typically occurred with clean pull-out; in most instances, cancellous bone remained attached to screw threads. Mean load without posterior cortical purchase was 375 +/- 53 N; with penetration it was 411 +/- 70 N. These differences were nonsignificant. Average deformation to failure was 1.41 +/- 0.10 mm in the group without posterior cortical penetration. In the posterior penetration group, mean deformation was 1.56 +/- 0.16 mm. Again, differences were not significant. Posterior cortical penetration does not improve the pull-out strength of Caspar screws in an isolated vertebral body model, but other biomechanical studies need to be done before insertion methods are altered. C1 VET AFFAIRS MED CTR,MILWAUKEE,WI. WILFORD HALL USAF MED CTR,DEPT NEUROSURG,LACKLAND AFB,TX 78236. RP MAIMAN, DJ (reprint author), MED COLL WISCONSIN,DEPT NEUROSURG,9200 W WISCONSIN AVE,MILWAUKEE,WI 53226, USA. NR 20 TC 27 Z9 31 U1 0 U2 0 PU WILLIAMS & WILKINS PI BALTIMORE PA 351 WEST CAMDEN ST, BALTIMORE, MD 21201-2436 SN 0148-396X J9 NEUROSURGERY JI Neurosurgery PD DEC PY 1992 VL 31 IS 6 BP 1097 EP 1101 PG 5 WC Clinical Neurology; Surgery SC Neurosciences & Neurology; Surgery GA KD087 UT WOS:A1992KD08700016 PM 1470320 ER PT J AU TAMI, TA WAWROSE, SF AF TAMI, TA WAWROSE, SF TI DISEASES OF THE NOSE AND PARANASAL SINUSES IN THE HUMAN IMMUNODEFICIENCY VIRUS-INFECTED POPULATION SO OTOLARYNGOLOGIC CLINICS OF NORTH AMERICA LA English DT Article ID IMMUNE-DEFICIENCY SYNDROME; IGE ANTIBODIES; AIDS; SINUSITIS; PATIENT; DERMATITIS; LYMPHOMA C1 SCOTT MED CTR,SCOTT AFB,IL. SAN FRANCISCO GEN HOSP,SAN FRANCISCO,CA 94110. RP TAMI, TA (reprint author), UNIV CALIF SAN FRANCISCO,DEPT OTOLARYNGOL,400 PARNASSUS AVE,A-717,SAN FRANCISCO,CA 94143, USA. NR 28 TC 12 Z9 12 U1 0 U2 0 PU W B SAUNDERS CO PI PHILADELPHIA PA INDEPENDENCE SQUARE WEST CURTIS CENTER, STE 300, PHILADELPHIA, PA 19106-3399 SN 0030-6665 J9 OTOLARYNG CLIN N AM JI Otolaryngol. Clin. N. Am. PD DEC PY 1992 VL 25 IS 6 BP 1199 EP 1210 PG 12 WC Otorhinolaryngology SC Otorhinolaryngology GA KA780 UT WOS:A1992KA78000005 ER PT J AU ARRIAGA, M SHELTON, C NASSIF, P BRACKMANN, DE AF ARRIAGA, M SHELTON, C NASSIF, P BRACKMANN, DE TI SELECTION OF SURGICAL APPROACHES FOR MENINGIOMAS AFFECTING THE TEMPORAL BONE SO OTOLARYNGOLOGY-HEAD AND NECK SURGERY LA English DT Article ID CEREBELLOPONTINE ANGLE MENINGIOMAS AB The varied locations of meningiomas within the temporal bone require a wide array of neurotologic approaches to accomplish complete resection with minimal morbidity. We reviewed 56 consecutive patients with temporal bone meningiomas. The six surgical approaches are described with regard to site of lesion, morbidity of procedure, and long-term patient outcome. Recommendations are made for selection of surgical approach. Hearing preservation was attempted in 25%. Middle fossa tumor removal was performed in nine patients (16%), retrosigmoid (suboccipital) in five patients (9%), translabyrinthine in 24 patients (43%), transcochlear in 15 patients (27%), infratemporal fossa in two patients (4%), and retrolabyrinthine in one patient (2%). Overall, meningioma surgery has higher morbidity, poorer facial nerve outcome, and higher recurrence rates than acoustic neuroma surgery. Thirteen percent of patients were unable to resume full preoperative activities after their surgery. Facial nerve transection occurred in 9% of the cases, and 83% of cases with more than 1 year followup had satisfactory or intermediate facial function (grades I to IV). Meningiomas of the temporal bone are insidious and aggressive lesions. Particular care is required to select the surgical approach appropriate for location, level of hearing, and the anatomic structures Involved. Patients must be realistically counseled about the surgical morbidity and long-term outcome associated with each approach. C1 WILFORD HALL USAF MED CTR,DEPT OTOLARYNGOL HEAD & NECK SURG,LACKLAND AFB,TX 78236. UNIV SO CALIF,SCH MED,LOS ANGELES,CA 90033. NR 11 TC 22 Z9 23 U1 0 U2 0 PU MOSBY-YEAR BOOK INC PI ST LOUIS PA 11830 WESTLINE INDUSTRIAL DR, ST LOUIS, MO 63146-3318 SN 0194-5998 J9 OTOLARYNG HEAD NECK JI Otolaryngol. Head Neck Surg. PD DEC PY 1992 VL 107 IS 6 BP 738 EP 744 PG 7 WC Otorhinolaryngology; Surgery SC Otorhinolaryngology; Surgery GA KE015 UT WOS:A1992KE01500005 PM 1470450 ER PT J AU PREVIC, FH SAUCEDO, JC AF PREVIC, FH SAUCEDO, JC TI THE RELATIONSHIP BETWEEN TURNING BEHAVIOR AND MOTORIC DOMINANCE IN HUMANS SO PERCEPTUAL AND MOTOR SKILLS LA English DT Article ID FOOT PREFERENCE; MOVEMENT; HAND AB This study attempted to correlate turning direction on the stepping test with three measures of motoric dominance-handedness, footedness, and eyedness. 111 high school students performed the stepping test while deprived of visual and auditory cues during a 1-min. interval. Although only slightly more than half of the subjects rotated rightward, the direction and magnitude of turning correlated significantly with footedness and eyedness but not with handedness. Thus, axial turning biases and motoric dominance may partially share a common mechanism, possibly involving vestibular asymmetry. RP PREVIC, FH (reprint author), ARMSTRONG LAB,DIV CREW TECHNOL,BROOKS AFB,TX 78235, USA. NR 22 TC 22 Z9 23 U1 0 U2 1 PU PERCEPTUAL MOTOR SKILLS PI MISSOULA PA PO BOX 9229, MISSOULA, MT 59807 SN 0031-5125 J9 PERCEPT MOTOR SKILL JI Percept. Mot. Skills PD DEC PY 1992 VL 75 IS 3 BP 935 EP 944 DI 10.2466/PMS.75.7.935-944 PN 1 PG 10 WC Psychology, Experimental SC Psychology GA JW498 UT WOS:A1992JW49800049 PM 1454499 ER PT J AU GHISHAN, FK KIKUCHI, K RIEDEL, B AF GHISHAN, FK KIKUCHI, K RIEDEL, B TI EPIDERMAL GROWTH-FACTOR UP-REGULATES INTESTINAL NA+/H+ EXCHANGE ACTIVITY SO PROCEEDINGS OF THE SOCIETY FOR EXPERIMENTAL BIOLOGY AND MEDICINE LA English DT Article ID HUMAN-FIBROBLASTS; SIGNAL TRANSDUCTION; MEMBRANE-VESICLES; INTRACELLULAR PH; PHORBOL ESTER; DNA-SYNTHESIS; RAT; CELLS; ACTIVATION; TRANSPORT AB The present studies were designed to examine the regulation of Na+/H+ exchange activity by epidermal growth factor (EGF) in an in vitro system. Na+/H+ exchange activity was determined in brush-border membranes isolated from rat jejunal enterocytes incubated with epidermal growth factor and a number of second messengers. EGF at physiological concentrations stimulated Na+/H+ exchange activity without affecting vesicle size. The stimulation of Na+/H+ activity was the result of increasing V(max) of Na+/H+ (6.0 +/- 0.4 compared with 3.3 +/- 0.27 nmol/mg protein/5 sec, P < 0.01). K(m) values of the Na+/H+ exchanger in brush-border membrane from cells stimulated with EGF and controls were similar (16.0 +/- 3.0 vs 13.0 +/- 3.0, respectively). Na+/H+ activity was inhibited by phorbol esters, calmodulin, and cyclic AMP. The effects of EGF, calmodulin, cyclic AMP, and phorbol esters were dependent on ATP, because depleting the cells from ATP masked the effects on Na+/H+ exchange activity. The results suggest that EGF stimulates Na+/H+ exchange activity in the enterocytes. This stimulation is most likely not via activation of the phosphatidylinositol pathway. C1 VANDERBILT MED CTR,DEPT PEDIAT GASTROENTEROL,NASHVILLE,TN 37232. VANDERBILT MED CTR,DEPT MOLEC PHYSIOL & BIOPHYS,NASHVILLE,TN 37232. TOKAI UNIV,DEPT MED,ISEHARA,KANAGAWA 25911,JAPAN. USAF,MED CTR,DEPT PEDIAT,WRIGHT PATTERSON AFB,OH 45433. FU NIDDK NIH HHS [R01 DK41274-03] NR 40 TC 11 Z9 11 U1 0 U2 0 PU BLACKWELL SCIENCE INC PI MALDEN PA 350 MAIN ST, MALDEN, MA 02148 SN 0037-9727 J9 P SOC EXP BIOL MED JI Proc. Soc. Exp. Biol. Med. PD DEC PY 1992 VL 201 IS 3 BP 289 EP 295 PG 7 WC Medicine, Research & Experimental SC Research & Experimental Medicine GA KA102 UT WOS:A1992KA10200009 PM 1332072 ER PT J AU WHITE, OR SKUMANICH, A LEAN, J LIVINGSTON, WC KEIL, SL AF WHITE, OR SKUMANICH, A LEAN, J LIVINGSTON, WC KEIL, SL TI THE SUN IN A NONCYCLING STATE SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC LA English DT Article ID CALCIUM K-LINE; MINIMUM AB Using the Baliunas and Jastrow (1990) study of cyclic variability in solar-type stars, we transform existing solar data to the stellar HK irradiance scale and examine the state of the solar chromosphere when a solar-type star shows little cyclic variability and surface magnetism. To reduce the chromospheric emission to levels for G-type stars showing no chromospheric activity cycles, not only must the Sun be free of plages and network; the brightness of the quiet chromosphere in the K line must be reduced to levels seen only in 15% of the quiet Sun area today. In contrast, the present-day level of K emission from the Sun places it in the cl ass of most active solar-type stars, far removed from a noncycling state. C1 USN,RES LAB,EO HULBURT CTR SPACE RES,WASHINGTON,DC 20375. NATL SOLAR OBSERV,TUCSON,AZ 85726. USAF,PHILLIPS LAB,SUNSPOT,NM 88347. RP WHITE, OR (reprint author), NATL CTR ATMOSPHER RES,HIGH ALTITUDE OBSERV,POB 3000,BOULDER,CO 80307, USA. NR 16 TC 51 Z9 51 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 SN 0004-6280 J9 PUBL ASTRON SOC PAC JI Publ. Astron. Soc. Pac. PD DEC PY 1992 VL 104 IS 682 BP 1139 EP 1143 DI 10.1086/133100 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA KF116 UT WOS:A1992KF11600002 ER PT J AU WOLFE, AD BLICK, DW MURPHY, MR MILLER, SA GENTRY, MK HARTGRAVES, SL DOCTOR, BP AF WOLFE, AD BLICK, DW MURPHY, MR MILLER, SA GENTRY, MK HARTGRAVES, SL DOCTOR, BP TI USE OF CHOLINESTERASES AS PRETREATMENT DRUGS FOR THE PROTECTION OF RHESUS-MONKEYS AGAINST SOMAN TOXICITY SO TOXICOLOGY AND APPLIED PHARMACOLOGY LA English DT Article ID ACETYLCHOLINESTERASE PROPHYLAXIS; NERVE AGENTS; MICE; PRIMATES; PYRIDOSTIGMINE; PURIFICATION; THERAPY C1 USAF,ARMSTRONG LAB,SYST RES LABS,BROOKS AFB,TX 78235. RP WOLFE, AD (reprint author), WALTER REED ARMY INST RES,DIV BIOCHEM,WASHINGTON,DC 20307, USA. NR 26 TC 55 Z9 55 U1 0 U2 1 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0041-008X J9 TOXICOL APPL PHARM JI Toxicol. Appl. Pharmacol. PD DEC PY 1992 VL 117 IS 2 BP 189 EP 193 DI 10.1016/0041-008X(92)90236-L PG 5 WC Pharmacology & Pharmacy; Toxicology SC Pharmacology & Pharmacy; Toxicology GA KC568 UT WOS:A1992KC56800007 PM 1471150 ER PT J AU PRASAD, SV AF PRASAD, SV TI ALUMINUM METAL MATRIX COMPOSITES TAILORED FOR ANTIFRICTION APPLICATIONS SO SURFACE & COATINGS TECHNOLOGY LA English DT Article; Proceedings Paper CT 19TH INTERNATIONAL CONF ON METALLURGICAL COATINGS AND THIN FILMS CY APR 06-10, 1992 CL SAN DIEGO, CA ID PARTICLE COMPOSITES; FIBROUS PREFORMS; PURE METAL; GRAPHITE; INFILTRATION; TRIBOLOGY AB This paper describes the friction behavior of aluminum metal matrix composites (MMCs) reinforced with kaowool (Al2O3.SiO2) fiber. Composites were produced by squeeze infiltration of fiber pre-forms. A hypoeutectic Al-Si alloy was used as the matrix. Friction measurements were made using a ball-on-disc configuration in which a type 440C stainless steel ball was held against a rotating MMC disc. A polished surface produced by standard metallographic polishing and an etched surface (with protrusions of fibers and eutectic silicon) were used as test surfaces. Wear scars and steel balls (after the wear test) were examined in a scanning electron microscope. When metallographically polished surfaces were used as test specimens, the friction coefficient varied between 0.4 and 0.5; the friction trace was rough with large fluctuations in frictional force. Smearing of aluminum was detected on the steel ball as well as on the wear scar. When etched surfaces were used as test specimens, the friction coefficient was reduced to 0.15 and aluminum transfer to the counterface was completely eliminated. The results of this study indicate that microstructural control coupled with etching can be used to tailor the aluminum MMCs for antifriction applications. RP PRASAD, SV (reprint author), MAT DIRECTORATE,WRIGHT LAB,WL MLBT,WRIGHT PATTERSON AFB,DAYTON,OH 45433, USA. NR 12 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0257-8972 J9 SURF COAT TECH JI Surf. Coat. Technol. PD NOV 23 PY 1992 VL 55 IS 1-3 BP 442 EP 446 PG 5 WC Materials Science, Coatings & Films; Physics, Applied SC Materials Science; Physics GA KA639 UT WOS:A1992KA63900017 ER PT J AU KOLESAR, ES BROTHERS, CP HOWE, CP JENKINS, TJ MOOSEY, AT SHIN, JE WISEMAN, JM AF KOLESAR, ES BROTHERS, CP HOWE, CP JENKINS, TJ MOOSEY, AT SHIN, JE WISEMAN, JM TI INTEGRATED-CIRCUIT MICROSENSOR FOR SELECTIVELY DETECTING NITROGEN-DIOXIDE AND DIISOPROPYL METHYLPHOSPHONATE SO THIN SOLID FILMS LA English DT Article; Proceedings Paper CT 19TH INTERNATIONAL CONF ON METALLURGICAL COATINGS AND THIN FILMS CY APR 06-10, 1992 CL SAN DIEGO, CA SP AMER VACUUM SOC, DIV VACUUM MET & THIN FILM ID ELECTRICAL-CONDUCTIVITY CHANGES; LANGMUIR-BLODGETT FILMS; FIELD-EFFECT TRANSISTOR; PHTHALOCYANINE; SENSORS AB A novel gas-sensitive microsensor, known as the interdigitated gate electrode field effect transistor (IGEFET), was realized by selectively depositing a chemically-active, electron-beam evaporated copper phthalocyanine (CuPc) thin film onto an integrated circuit (IC). When isothermally operated at 150-degrees-C, the microsensor can selectively and reversibly detect parts-per-billion concentration levels of nitrogen dioxide (NO2) and diisopropyl methylpbosphonate (DIMP). The selectivity feature of the microsensor was established by operating it with a 5 V peak amplitude, 2 mus duration, 1000 Hz repetition frequency pulse, and then analyzing its time- and frequency-domain responses. The envelopes associated with the normalized-difference Fourier transform magnitude spectra, and their derivatives, reveal features which unambiguously distinguish the NO2 and DIMP challenge gas responses. Furthermore, the area beneath each response envelope may correspondingly be interpreted as the microsensor's sensitivity for a specific challenge gas concentration. Scanning electron microscopy (SEM) was used to characterize the morphology of the CuPc thin film. Additionally, infrared (IR) spectroscopy was employed to verify the alpha- and beta-phases of the sublimed CuPc thin films and to study the NO2- and DIMP-CuPc interactions. RP KOLESAR, ES (reprint author), USAF,DEPT ELECT & COMP ENGN,WRIGHT PATTERSON AFB,OH 45433, USA. NR 36 TC 16 Z9 16 U1 0 U2 0 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0040-6090 J9 THIN SOLID FILMS JI Thin Solid Films PD NOV 20 PY 1992 VL 220 IS 1-2 BP 30 EP 37 DI 10.1016/0040-6090(92)90544-L PG 8 WC Materials Science, Multidisciplinary; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter SC Materials Science; Physics GA KA735 UT WOS:A1992KA73500006 ER PT J AU CHEN, Y STEVENSON, WTK SOLOSKI, EJ VICKSTROM, T LEE, CYC EVERS, R AF CHEN, Y STEVENSON, WTK SOLOSKI, EJ VICKSTROM, T LEE, CYC EVERS, R TI DEGRADATION OF POLY(P-PHENYLENE BENZOBISTHIAZOLE) (PBT) RIGID ROD, POLY(ETHER ETHER KETONE ETHER KETONE) (PEEKEK) SEMIFLEXIBLE COIL, AND A GRAFTED HAIRY ROD POLYMER CONTAINING PBT AND PEEKEK SO JOURNAL OF MATERIALS SCIENCE LA English DT Article ID BUTADIENE DIBLOCK COPOLYMER; THERMAL-DEGRADATION AB Thermal degradation pathways of the rigid-rod polymer, poly(p-phenylene benzobisthiazole, PBT) have been elucidated by thermal volatilization analysis and related techniques. Processes are characterized by the expulsion of hydrogen sulphide, acetylene, and some carbon disulphide. Evidence is presented for the production and subsequent polymerization of aromatic nitriles and for the existence of thermal rearrangements to produce quinoline derivatives. A similar analysis of the semi-flexible coil polymer, poly(ether ether ketone ether ketone, PEEKEK) revealed the importance of directed chain-scission processes to form oligomers, carbon monoxide expulsion with radical recombination to produce biphenyl linkages, and aromatic fusions to produce fluorenone-type derivatives. Examination of a "hairy rod" comb-type graft copolymer of PBT and PEEKEK revealed some instability introduced by the grafting process and determined that the graft site thermally isomerized through oxygen migration to yield xanthone-based heterocyclic intermediates of degradation. C1 WICHITA STATE UNIV,DEPT CHEM,WICHITA,KS 67208. WICHITA STATE UNIV,NATL INST AVIAT RES,WICHITA,KS 67208. UNIV DAYTON,RES INST,DAYTON,OH 45469. OKLAHOMA STATE UNIV,DEPT CHEM,STILLWATER,OK 74078. AFOSR,WASHINGTON,DC 20332. USAF,MAT LAB,POLYMER BRANCH,WRIGHT PATTERSON AFB,OH 45433. NR 14 TC 4 Z9 4 U1 0 U2 1 PU CHAPMAN HALL LTD PI LONDON PA 2-6 BOUNDARY ROW, LONDON, ENGLAND SE1 8HN SN 0022-2461 J9 J MATER SCI JI J. Mater. Sci. PD NOV 15 PY 1992 VL 27 IS 22 BP 6171 EP 6182 DI 10.1007/BF01133767 PG 12 WC Materials Science, Multidisciplinary SC Materials Science GA JZ837 UT WOS:A1992JZ83700029 ER PT J AU YU, PW REYNOLDS, DC JOGAI, B LOEHR, J STUTZ, CE AF YU, PW REYNOLDS, DC JOGAI, B LOEHR, J STUTZ, CE TI HIGH VALENCE-BAND OFFSET OF GASBAS-INALAS QUANTUM-WELLS GROWN BY MOLECULAR-BEAM EPITAXY SO APPLIED PHYSICS LETTERS LA English DT Article ID INP AB Photoluminescence measurements were made at 2-300 K on GaSbAs-InAlAs single quantum wells lattice matched to InP grown by molecular beam epitaxy. The experimental exciton transition energy from the first electron subband to the first heavy hole subband was analyzed with calculated values obtained from the envelope function method. The quantum well exciton transition energy for well widths of 10-300 angstrom is fitted to a large valence-band offset (DELTAE(v)) of 0.93 DELTAE(g). The exciton linewidth increases with decreasing well width. The two dominant exciton line broadening mechanisms were found to be monolayer fluctuations of the well width and the band filling of electron. C1 SOLID STATE ELECTR DIRECTORATE,WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. RP YU, PW (reprint author), WRIGHT STATE UNIV,RES CTR,DAYTON,OH 45435, USA. NR 15 TC 16 Z9 16 U1 0 U2 1 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD NOV 9 PY 1992 VL 61 IS 19 BP 2317 EP 2319 DI 10.1063/1.108229 PG 3 WC Physics, Applied SC Physics GA JW880 UT WOS:A1992JW88000021 ER PT J AU HAALAND, P PACHTER, R PACHTER, M ADAMS, W AF HAALAND, P PACHTER, R PACHTER, M ADAMS, W TI ANISOTROPIC STRESS AND MOLECULAR MODULI OF C-60 SO CHEMICAL PHYSICS LETTERS LA English DT Article ID VIBRATIONAL RAMAN; SPECTRA; FILMS; MODES AB An exploration of mechanical properties at the molecular level based on inversion of the Hessian matrix is described. The molecular response of buckminsterfullerene (C60) to isotropic and anisotropic stresses has been examined using semiempirical molecular orbital methods. Although C60 is very stiff when compressed isotropically, its modulus is decreased by over an order of magnitude when the stresses are anisotropic. C1 WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. RP HAALAND, P (reprint author), USAF,INST TECHNOL,WRIGHT PATTERSON AFB,OH 45433, USA. RI Adams, Wade/A-7305-2010 NR 20 TC 4 Z9 4 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0009-2614 J9 CHEM PHYS LETT JI Chem. Phys. Lett. PD NOV 6 PY 1992 VL 199 IS 3-4 BP 379 EP 382 DI 10.1016/0009-2614(92)80135-X PG 4 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA JV972 UT WOS:A1992JV97200028 ER PT J AU DAVIS, LP BURGGRAF, LW GORDON, MS AF DAVIS, LP BURGGRAF, LW GORDON, MS TI NOVEL PENTACOORDINATED BRIDGED SILICON ANIONS SO INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY LA English DT Article ID 2ND-ROW ELEMENTS AB Both ab initio and semiempirical electronic structure calculations are used to investigate the molecular and electronic structures and eneregetic stabilities of an unusual bridged compound with the general formula [Y-SiH3-X-SiH3-Y]-, with Y = H or F and X = H, CH3, NH2, OH, F, or Cl. Most of these bridged anions are quite stable relative to YSiH3 + XSiH3Y-, and the stability is predicted to increase considerably when Y = H is replaced with Y = F. C1 USAF,OFF SCI RES,DIRECTORATE CHEM & MAT SCI,WASHINGTON,DC 20332. N DAKOTA STATE UNIV,DEPT CHEM,FARGO,ND 58105. RP DAVIS, LP (reprint author), HEADQUARTERS AIR FORCE SYST COMMAND,ANDREWS AFB,WASHINGTON,DC 20334, USA. NR 14 TC 7 Z9 7 U1 0 U2 2 PU JOHN WILEY & SONS INC PI NEW YORK PA 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0020-7608 J9 INT J QUANTUM CHEM JI Int. J. Quantum Chem. PD NOV 5 PY 1992 VL 44 IS 5 BP 691 EP 698 DI 10.1002/qua.560440503 PG 8 WC Chemistry, Physical; Mathematics, Interdisciplinary Applications; Physics, Atomic, Molecular & Chemical SC Chemistry; Mathematics; Physics GA JU641 UT WOS:A1992JU64100002 ER PT J AU COOK, RA COLLINS, DM KLINGNER, RE POLYZOIS, D AF COOK, RA COLLINS, DM KLINGNER, RE POLYZOIS, D TI LOAD-DEFLECTION BEHAVIOR OF CAST-IN-PLACE AND RETROFIT CONCRETE ANCHORS SO ACI STRUCTURAL JOURNAL LA English DT Article DE ANCHORS (FASTENERS); ANCHOR BOLTS; CONNECTIONS; DUCTILITY; EMBEDMENT; LOAD-DEFLECTION CURVES; LOADS (FORCES); STATIC LOADS AB Reports on a study investigating the design and behavior of single cast-in-place and retrofit concrete anchors under static, fatigue, and impact tensile loads. The embedment lengths used in this study were designed to produce ductile behavior, which was defined as steel failure of the anchor shank. Anchor types tested were cast-in-place anchor bolts and embeds (headed anchors with an integral female-threaded coupling at the concrete surface) and four types of retrofit anchors: (a) adhesive (epoxy, polyester and vinylester); (b) grouted; (c) expansion (torque-controlled); and (d) undercut. The study involved 178 tests of 24 products comparing the design, load-deflection behavior and mode of failure of retrofit concrete anchors with that of cast-in-place anchors under different tensile loading conditions. Behavior modes of anchors were identified under static, fatigue, and impact tensile loads, and anchor types were categorized according to these behavior modes. C1 USAF,WASHINGTON,DC 20330. UNIV TEXAS,CIVIL ENGN,AUSTIN,TX 78712. UNIV MANITOBA,CIVIL ENGN,WINNIPEG R3T 2N2,MANITOBA,CANADA. RP COOK, RA (reprint author), UNIV FLORIDA,CIVIL ENGN,GAINESVILLE,FL 32611, USA. NR 9 TC 21 Z9 22 U1 1 U2 4 PU AMER CONCRETE INST PI FARMINGTON HILLS PA 38800 INTERNATIONAL WAY, COUNTRY CLUB DRIVE, PO BOX 9094, FARMINGTON HILLS, MI 48333-9094 SN 0889-3241 J9 ACI STRUCT J JI ACI Struct. J. PD NOV-DEC PY 1992 VL 89 IS 6 BP 639 EP 649 PG 11 WC Construction & Building Technology; Engineering, Civil; Materials Science, Multidisciplinary SC Construction & Building Technology; Engineering; Materials Science GA JY211 UT WOS:A1992JY21100005 ER PT J AU STETSON, KF KIMMEL, RL AF STETSON, KF KIMMEL, RL TI SURFACE-TEMPERATURE EFFECTS ON BOUNDARY-LAYER-TRANSITION SO AIAA JOURNAL LA English DT Note C1 USAF,WRIGHT AERONAUT LABS,FLIGHT DYNAM DIRECTORATE,HIGH SPEED AERO PERFORMANCE BRANCH,WRIGHT PATTERSON AFB,OH 45433. NR 9 TC 2 Z9 2 U1 0 U2 1 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0001-1452 J9 AIAA J JI AIAA J. PD NOV PY 1992 VL 30 IS 11 BP 2782 EP 2783 DI 10.2514/3.11300 PG 2 WC Engineering, Aerospace SC Engineering GA JV780 UT WOS:A1992JV78000030 ER PT J AU MILLS, JL FUJITANI, RM TAYLOR, SM AF MILLS, JL FUJITANI, RM TAYLOR, SM TI CONTRIBUTION OF ROUTINE INTRAOPERATIVE COMPLETION ARTERIOGRAPHY TO EARLY INFRAINGUINAL BYPASS PATENCY SO AMERICAN JOURNAL OF SURGERY LA English DT Article; Proceedings Paper CT 44TH ANNUAL MEETING OF THE SOUTHWESTERN SURGICAL CONGRESS CY APR 26-29, 1992 CL SCOTTSDALE, AZ ID SAPHENOUS-VEIN BYPASS; ARTERIAL SURGERY; ANGIOSCOPY; GRAFTS; RECONSTRUCTIONS; FAILURE AB To determine the clinical utility of routine intraoperative completion arteriography, we prospectively evaluated 214 consecutive infrainguinal bypass grafts (209 reversed-vein and 5 polytetrafluoroethylene grafts) performed from July 1987 to August 1991. Visual inspection, pulse palpation, and continuous-wave Doppler examination were performed in all cases. At least 1 completion arteriogram was obtained in 213 cases (99%). The bypasses were to the popliteal artery in 130 cases and to the tibial or pedal arteries in 84 cases. Graft patency was confirmed at 30 days in all patients by ankle-brachial index determinations (greater than 0.2 increase) and duplex scan-derived peak-systolic flow velocities (greater than 45 cm/s). Significant technical problems requiring revision were identified in 18 grafts (8%), including 6% of popliteal grafts and 12% of tibial/pedal grafts. Only three of these problems were suspected by pulse palpation or continuous-wave Doppler examination. The intraoperative angiographic findings leading to revision included distal anastomotic stenoses (n = 6), distal arterial disease requiring quential bypass (n = 4), mid-graft valvular or branch ligature stenoses (n = 4), distal arterial thrombosis (n = 2), and graft kink or twist (n 2). Thirty-day primary patency was 99% (129 of 130) for femoropopliteal grafts and 93% (78 of 84) for femorodistal grafts. Secondary patency was 100% (130 of 130) and 96% (81 of 84), respectively. Primary patency was 89% (16 of 18) for those grafts that required intraoperative revision based on arteriographic findings. We conclude that routine completion arteriography is an excellent method of ensuring the intraoperative technical adequacy of infrainguinal bypass. The test is easy to perform, reproducible, and should be considered the "gold standard" for intraoperative bypass assessment. Prior to adopting angioscopy or duplex scanning for intraoperative surveillance, randomized, controlled validation studies against angiography should be performed. C1 WILFORD HALL USAF MED CTR,VASC SURG SECT,LACKLAND AFB,TX 78236. OI Mills, Joseph/0000-0002-4955-4384 NR 29 TC 32 Z9 32 U1 0 U2 0 PU CAHNERS PUBL CO PI NEW YORK PA 249 WEST 17 STREET, NEW YORK, NY 10011 SN 0002-9610 J9 AM J SURG JI Am. J. Surg. PD NOV PY 1992 VL 164 IS 5 BP 506 EP 511 DI 10.1016/S0002-9610(05)81190-0 PG 6 WC Surgery SC Surgery GA JY007 UT WOS:A1992JY00700021 PM 1443378 ER PT J AU LEE, CE FREEMAN, TM CHARLESWORTH, EN AF LEE, CE FREEMAN, TM CHARLESWORTH, EN TI EXTREMELY ELEVATED IGE SO ANNALS OF ALLERGY LA English DT Article ID RECURRENT-INFECTION SYNDROME; BONE-MARROW TRANSPLANTATION; SERUM IMMUNOGLOBULIN-E; ATOPIC-DERMATITIS; STAPHYLOCOCCUS-AUREUS; HYPERIMMUNOGLOBULINEMIA-E; INTERFERON-GAMMA; CELL LEUKEMIA; LYMPHOCYTES-T; ANTIBODIES RP LEE, CE (reprint author), USAF,DAVID GRANT MED CTR,ALLERGY IMMUNOL SERV,TRAVIS AFB,CA 94535, USA. NR 59 TC 2 Z9 2 U1 0 U2 1 PU AMER COLL ALLERGY ASTHMA IMMUNOLOGY PI ARLINGTON HTS PA 85 WEST ALGONQUIN RD SUITE 550, ARLINGTON HTS, IL 60005 SN 0003-4738 J9 ANN ALLERGY JI Ann. Allergy PD NOV PY 1992 VL 69 IS 5 BP 399 EP 405 PG 7 WC Allergy SC Allergy GA JY692 UT WOS:A1992JY69200003 PM 1456481 ER PT J AU LOOS, GC AF LOOS, GC TI USING ADAPTIVE OPTICS TO ENHANCE MICHELSON INTERFEROMETRY SO APPLIED OPTICS LA English DT Article AB The implementation of adaptive wave-front compensation techniques offers the potential to improve the detection sensitivity of a Michelson stellar interferometer. The improvement obtained depends on many factors, including the completeness of the wave-front corrections. Calculations based on simple theory are presented that predict the shot-noise-limited sensitivity enhancement as measured in limiting stellar visual magnitudes for adaptive optical systems offering varying degrees of spatial compensation. Even low-order wave-front corrections are shown to yield significant improvement in detection thresholds. RP LOOS, GC (reprint author), USAF,PHILLIPS LAB,KIRTLAND AFB,NM 87117, USA. NR 3 TC 3 Z9 3 U1 0 U2 0 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD NOV 1 PY 1992 VL 31 IS 31 BP 6632 EP 6636 PG 5 WC Optics SC Optics GA JW127 UT WOS:A1992JW12700013 PM 20733889 ER PT J AU GOLDSTEIN, DH AF GOLDSTEIN, DH TI MUELLER MATRIX DUAL-ROTATING RETARDER POLARIMETER SO APPLIED OPTICS LA English DT Article DE MUELLER MATRIX; POLARIMETRY; LASER POLARIMETRY; ELLIPSOMETRY ID ELLIPSOMETRY; INVIVO; BIREFRINGENCE AB A computer-controlled Mueller matrix polarimeter with dual rotating retarders is described. Bulk properties of optical materials are determined by controlling the input-polarization state and measuring the output-polarization state. The Mueller matrix of a sample is obtained from polarimetric measurements, and polarization properties, i.e., diattenuation and retardance as well as depolarization, are extracted from the Mueller matrix. Further, fundamental electro- and magneto-optical material properties such as the electro-optical tensor coefficients may be obtained from Mueller matrices measured with applied fields. The polarimeter is currently configured to operate over the 3- to 12-mum spectral region. RP GOLDSTEIN, DH (reprint author), USAF,LAB ARMAMENT DIRECTORATE,WL,MNGS,EGLIN AFB,FL 32542, USA. NR 22 TC 158 Z9 161 U1 4 U2 17 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD NOV 1 PY 1992 VL 31 IS 31 BP 6676 EP 6683 PG 8 WC Optics SC Optics GA JW127 UT WOS:A1992JW12700020 PM 20733896 ER PT J AU LEE, YI THIEM, TL KIM, GH TENG, YY SNEDDON, J AF LEE, YI THIEM, TL KIM, GH TENG, YY SNEDDON, J TI INTERACTION OF AN EXCIMER-LASER BEAM WITH METALS .3. THE EFFECT OF A CONTROLLED-ATMOSPHERE IN LASER-ABLATED PLASMA EMISSION SO APPLIED SPECTROSCOPY LA English DT Article DE EMISSION SPECTROSCOPY; INSTRUMENTATION, EMISSION SPECTROSCOPY; LASERS, EXCIMER ID PULSED MAGNETIC-FIELD; BASIC INVESTIGATIONS; RESOLVED EMISSION; SAMPLE PLUMES; MICROANALYSIS; PRESSURE AB The effects of pressure over the range 10 to 760 Torr and of atmosphere (air, argon, and helium) on an ArF-excimer laser (lambda = 193 nm) ablated plasma created above the surface of a copper target was studied with the use of emission measurements. These factors greatly influenced the shape, line-to-background (L/B) ratio, and temperature of the plasma. In general, the size of the plasma decreased with increasing pressure. In air or argon, and at pressures less than 50 Torr, the plasma consisted of two distinct regions. With the use of neutral copper [Cu(I)] lines, reduced pressure from 760 to 10 Torr resulted in a 7-fold increase in air and an 11-fold increase in an argon atmosphere. With the use of a helium atmosphere, the maximum line intensity was obtained at 50 Torr. This was a 1.5-fold increase over that obtained at 760 Torr. With a reduction in the pressure in air or argon, the position of maximum intensity (for copper atom and ion lines) moved away from the surface. For helium, the position of maximum intensity did not significantly vary in accordance with a reduction in the pressure. In general, the plasma temperature decreased with decreasing pressure. C1 UNIV MASSACHUSETTS,DEPT CHEM,LOWELL,MA 01884. UNIV MASSACHUSETTS,DEPT PHYS,LOWELL,MA 01854. USAF,BEDFORD,MA 01731. NR 18 TC 87 Z9 87 U1 0 U2 1 PU SOC APPLIED SPECTROSCOPY PI FREDERICK PA 201B BROADWAY ST, FREDERICK, MD 21701 SN 0003-7028 J9 APPL SPECTROSC JI Appl. Spectrosc. PD NOV PY 1992 VL 46 IS 11 BP 1597 EP 1604 DI 10.1366/0003702924926871 PG 8 WC Instruments & Instrumentation; Spectroscopy SC Instruments & Instrumentation; Spectroscopy GA JZ764 UT WOS:A1992JZ76400002 ER PT J AU BOLGER, WE PARSONS, DS MAIR, EA KUHN, FA AF BOLGER, WE PARSONS, DS MAIR, EA KUHN, FA TI LACRIMAL DRAINAGE SYSTEM INJURY IN FUNCTIONAL ENDOSCOPIC SINUS SURGERY - INCIDENCE, ANALYSIS, AND PREVENTION SO ARCHIVES OF OTOLARYNGOLOGY-HEAD & NECK SURGERY LA English DT Article ID ETHMOIDECTOMY; OBSTRUCTION; PATENCY AB Injury to the lacrimal drainage system with resultant epiphora is a complication of functional endoscopic sinus surgery. A study of 24 patients was conducted to determine the incidence and significance of lacrimal drainage system injuries during functional endoscopic sinus surgery. Intraoperative testing demonstrated seven occult injuries (15%) in 46 endoscopic procedures. Postoperative testing demonstrated diversion of lacrimal drainage into the middle meatus in two patients and spontaneous healing of the injured lacrimal drainage system with restoration of normal drainage in three of the patients available for follow-up testing. In no patient did epiphora develop. It is concluded that the nasolacrimal drainage system is in close proximity to the dissection cavity during functional endoscopic sinus surgery and, hence, is at risk for inadvertent injury. Occult damage to the nasolacrimal drainage system would appear to be a common event during functional endoscopic sinus surgery; however, the complication of postoperative epiphora is rare. C1 WILFORD HALL USAF MED CTR,DEPT OTOLARYNGOL HEAD & NECK SURG,LACKLAND AFB,TX 78236. MED COLL GEORGIA,DIV OTOLARYNGOL HEAD & NECK SURG,AUGUSTA,GA 30912. NR 18 TC 27 Z9 28 U1 0 U2 0 PU AMER MEDICAL ASSOC PI CHICAGO PA 515 N STATE ST, CHICAGO, IL 60610 SN 0886-4470 J9 ARCH OTOLARYNGOL JI Arch. Otolaryngol. Head Neck Surg. PD NOV PY 1992 VL 118 IS 11 BP 1179 EP 1184 PG 6 WC Otorhinolaryngology; Surgery SC Otorhinolaryngology; Surgery GA JX324 UT WOS:A1992JX32400009 PM 1418897 ER PT J AU CENTERS, PW AF CENTERS, PW TI POTENTIAL NEUROTOXIN FORMATION IN THERMALLY DEGRADED SYNTHETIC ESTER TURBINE LUBRICANTS SO ARCHIVES OF TOXICOLOGY LA English DT Letter DE TURBINE LUBRICANT; TRIMETHYLOLPROPANE ESTERS; TRICRESYL PHOSPHATE; TRIMETHYLOLPROPANE PHOSPHATE; NEUROTOXIN ID HIGH-TEMPERATURE SURFACES; VAPOR-PHASE AB Under extreme conditions of thermal degradation, a potent neurotoxin, trimethylolpropane phosphate (TMPP), may be formed by reaction of tricresyl phosphate (TCP, an anti-wear additive) and trimethylolpropane esters (TMPE) of carboxylic acids that may be contained in turbine engine lubricant formulations. The neurotoxin is only formed at extreme temperatures (350-700-degrees-C), which has minimized concern for use of the synthetic lubricants under intended applications; however, since researchers are often not privy to the proprietary composition of such lubricants, extreme caution should be exercised in studies of or applications of synthetic lubricants degraded under extreme conditions. RP CENTERS, PW (reprint author), USAF,WRIGHT LAB,AERO PROPULS & POWER DIRECTORATE,WL POSL,WRIGHT PATTERSON AFB,OH 45433, USA. NR 6 TC 17 Z9 18 U1 0 U2 1 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0340-5761 J9 ARCH TOXICOL JI Arch. Toxicol. PD NOV PY 1992 VL 66 IS 9 BP 679 EP 680 DI 10.1007/BF01981509 PG 2 WC Toxicology SC Toxicology GA JW630 UT WOS:A1992JW63000011 PM 1482292 ER PT J AU CORNWALL, MW KROCK, LP AF CORNWALL, MW KROCK, LP TI ELECTROMYOGRAPHIC ACTIVITY WHILE PERFORMING THE ANTI-G STRAINING MANEUVER DURING HIGH SUSTAINED ACCELERATION SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID MUSCLE FATIGUE; SURFACE ELECTROMYOGRAM; G-TOLERANCE; ISOMETRIC CONTRACTIONS; SIGNAL; AMPLITUDE; EMG AB The purpose of this study was to measure the muscle activity during performance of the anti-G straining maneuver (AGSM) at high sustained acceleration stress (+Gz = head-to-foot inertial loading). Ten males were exposed on three separation occasions to a rapid onset rate of 6 + Gz. Subjects wore standard United States Air Force (USAF) anti-G trousers and performed the AGSM until perceived fatigue or until achieving light loss criteria. During each exposure, surface electromyography (EMG) was recorded from the erector spinae, external oblique, bicep femoris, vastus lateralis, and lateral gastrocnemius muscles. The normalized root-mean squares (RMS) and mean power frequency (MPF) for each muscle were calculated and tested for significant differences with an analysis of variance (ANOVA) procedure. The results of this study showed that mean amplitude decreased during the AGSM (35.40%) while MPF showed no significant change. The EMG amplitude of lower extremity muscles decreased (61.45%) while the amplitude of trunk muscles decreased slightly (3.45%). These results indicate that during the performance of the AGSM, motor unit recruitment in lower extremity muscles decrease without evidence of fatigue. C1 ARMSTRONG LAB,CREW SYST DIRECTORATE,DIV CREW TECHNOL,BROOKS AFB,TX 78235. NR 25 TC 8 Z9 8 U1 0 U2 0 PU AEROSPACE MEDICAL ASSOC PI ALEXANDRIA PA 320 S HENRY ST, ALEXANDRIA, VA 22314-3579 SN 0095-6562 J9 AVIAT SPACE ENVIR MD JI Aviat. Space Environ. Med. PD NOV PY 1992 VL 63 IS 11 BP 971 EP 975 PG 5 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA JV794 UT WOS:A1992JV79400005 PM 1445161 ER PT J AU BROWN, DB MUELLER, GL GOLICH, FC AF BROWN, DB MUELLER, GL GOLICH, FC TI HYPERBARIC-OXYGEN TREATMENT FOR CARBON-MONOXIDE POISONING IN PREGNANCY - A CASE-REPORT SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID FETAL DEVELOPMENT; BRAIN; INTOXICATION; SEQUELAE; THERAPY; DAMAGE; RAT AB Carbon monoxide (CO) poisoning is one of the most common forms of poisoning in the United States. When CO poisoning occurs in the pregnant patient, it is extremely toxic to the mother and fetus in terms of central nervous system disorders and delayed central nervous system sequelae. Controversy exists in treating the pregnant patient with hyperbaric oxygen (HBO) because of the unknown effects of high partial pressures of oxygen on the fetus. HBO therapy is beneficial in CO poisoning because of its effect of first increasing oxygen concentration and causing a shift in the oxygen dissociation curve from the left to the right. Second, by causing o diminished CO interaction with cytochrome oxidase, HBO allows mitochondria to use oxygen more effectively. Third, HBO may reduce lipid peroxidation which may be responsible for neurological deterioration and delayed central nervous system sequelae. Fourth, decreased CO influence through HBO may reduce changes in the myocardium as a result of CO poisoning, if cardiovascular disease is already present. A case study of successful HBO therapy used during pregnancy is presented and effects of CO on the fetus are discussed. C1 ARMSTRONG LAB,BROOKS AFB,TX. RP BROWN, DB (reprint author), SAT,92ND MED GRP,FAIRCHILD AFB,WA 99011, USA. NR 29 TC 14 Z9 14 U1 0 U2 1 PU AEROSPACE MEDICAL ASSOC PI ALEXANDRIA PA 320 S HENRY ST, ALEXANDRIA, VA 22314-3579 SN 0095-6562 J9 AVIAT SPACE ENVIR MD JI Aviat. Space Environ. Med. PD NOV PY 1992 VL 63 IS 11 BP 1011 EP 1014 PG 4 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA JV794 UT WOS:A1992JV79400012 PM 1445151 ER PT J AU WILSON, G AF WILSON, G TI CARDIORESPIRATORY MEASURES AND THEIR ROLE IN STUDIES OF PERFORMANCE - PREFACE SO BIOLOGICAL PSYCHOLOGY LA English DT Editorial Material RP WILSON, G (reprint author), USAF,ARMSTRONG LAB,DIV HUMAN ENGN,PERFORMANCE ASSESSMENT BRANCH,WRIGHT PATTERSON AFB,OH 45433, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0301-0511 J9 BIOL PSYCHOL JI Biol. Psychol. PD NOV PY 1992 VL 34 IS 2-3 BP 91 EP 92 DI 10.1016/0301-0511(92)90011-I PG 2 WC Psychology, Biological; Behavioral Sciences; Psychology; Psychology, Experimental SC Psychology; Behavioral Sciences GA KA293 UT WOS:A1992KA29300002 ER PT J AU WILSON, GF AF WILSON, GF TI APPLIED USE OF CARDIAC AND RESPIRATION MEASURES - PRACTICAL CONSIDERATIONS AND PRECAUTIONS SO BIOLOGICAL PSYCHOLOGY LA English DT Article DE HEART RATE; RESPIRATION; PERFORMANCE ID HEART-RATE; CARDIOVASCULAR-RESPONSES; BLOOD-PRESSURE; STRESS; REACTIVITY; FLIGHT; TESTS; LIFE AB Cardiac and respiratory measures can be successfully applied to "real world" environments and these measures have certain advantages over both performance and subjective measures that are typically used to monitor operator state and workload. However, because of large differences between laboratory and "real world" environments one must utilize caution in directly applying laboratory data and theories to the day-to-day world environment. While most workers are highly over-trained in their jobs, laboratory subjects are often under-trained in the cognitive tasks that are used to study cognitive activity. It is possible that a substantial portion of experimental effects reported in laboratory studies is due to learning effects. In addition, relatively small changes in cardiac and respiration measures are reported to experimental manipulations in the laboratory while a much larger range of changes are reported in "real world" environments. These differences highlight questions about laboratory/real world similarities and the need to develop a database of actual work environment data. A third area of concern is the relative lack of control over the experimental situation that is the case with most applied research. The possible confounding of changes due to cognitive and physical activity levels is a major concern and strategies for overcoming these problems are suggested. The potential for valuable contributions by cardiac and respiratory measures to applied research make overcoming these difficulties worthwhile. RP WILSON, GF (reprint author), USAF,ARMSTRONG LAB,DIV HUMAN ENGN,PERFORMANCE ASSESSMENT BRANCH,WRIGHT PATTERSON AFB,OH 45433, USA. NR 45 TC 30 Z9 30 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0301-0511 J9 BIOL PSYCHOL JI Biol. Psychol. PD NOV PY 1992 VL 34 IS 2-3 BP 163 EP 178 DI 10.1016/0301-0511(92)90014-L PG 16 WC Psychology, Biological; Behavioral Sciences; Psychology; Psychology, Experimental SC Psychology; Behavioral Sciences GA KA293 UT WOS:A1992KA29300005 PM 1467392 ER PT J AU WILSON, G AF WILSON, G TI CARDIORESPIRATORY MEASURES AND THEIR ROLE IN STUDIES OF PERFORMANCE SO BIOLOGICAL PSYCHOLOGY LA English DT Editorial Material RP WILSON, G (reprint author), USAF,ARMSTRONG LAB,DIV HUMAN ENGN,PERFORMANCE ASSESSMENT BRANCH,WRIGHT PATTERSON AFB,OH 45433, USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0301-0511 J9 BIOL PSYCHOL JI Biol. Psychol. PD NOV PY 1992 VL 34 IS 2-3 BP R1 EP R1 PG 1 WC Psychology, Biological; Behavioral Sciences; Psychology; Psychology, Experimental SC Psychology; Behavioral Sciences GA KA293 UT WOS:A1992KA29300001 ER PT J AU BEER, JMA AF BEER, JMA TI MENTAL MODELS MIDST THE OPTICAL-FLOW SO BULLETIN OF THE PSYCHONOMIC SOCIETY LA English DT Meeting Abstract C1 USAF,ARMSTRONG LAB,WASHINGTON,DC 20330. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PSYCHONOMIC SOC INC PI AUSTIN PA 1710 FORTVIEW RD, AUSTIN, TX 78704 SN 0090-5054 J9 B PSYCHONOMIC SOC PD NOV PY 1992 VL 30 IS 6 BP 468 EP 468 PG 1 WC Psychology, Mathematical SC Psychology GA JV167 UT WOS:A1992JV16700332 ER PT J AU WARREN, R BEER, JMA AF WARREN, R BEER, JMA TI PERCEPTION OF ON-SCREEN AND OFF-SCREEN SELF-MOTION HEADING SO BULLETIN OF THE PSYCHONOMIC SOCIETY LA English DT Meeting Abstract C1 USAF,ARMSTRONG LAB,WASHINGTON,DC 20330. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PSYCHONOMIC SOC INC PI AUSTIN PA 1710 FORTVIEW RD, AUSTIN, TX 78704 SN 0090-5054 J9 B PSYCHONOMIC SOC PD NOV PY 1992 VL 30 IS 6 BP 472 EP 472 PG 1 WC Psychology, Mathematical SC Psychology GA JV167 UT WOS:A1992JV16700377 ER PT J AU WONG, MT DOLAN, MJ AF WONG, MT DOLAN, MJ TI SIGNIFICANT INFECTIONS DUE TO BACILLUS SPECIES FOLLOWING ABRASIONS ASSOCIATED WITH MOTOR-VEHICLE RELATED TRAUMA SO CLINICAL INFECTIOUS DISEASES LA English DT Note ID SERIOUS INFECTIONS; CEREUS AB Non-anthracis Bacillus species are ubiquitous gram-positive spore-forming organisms that were once believed to be nonpathogenic but are now recognized as causing a variety of infections. We report a new aspect of trauma associated with bacillus infection: clinically significant infection by Bacillus species in patients who are involved in motor vehicle accidents and sustain injury related to road contact. Cases were evaluated retrospectively from May 1990 through December 199 1. Four patients who had documented infections with Bacillus species and who were involved in motor vehicle accidents associated with road trauma were identified during this period. The antibiotic susceptibility profile of the Bacillus species consistently demonstrated resistance to beta-lactam antibiotics. This series of cases illustrates an additional aspect of disease associated with bacteria of the Bacillus species that should be considered for patients who have sustained injuries from motor vehicle accidents associated with road trauma. RP WONG, MT (reprint author), WILFORD HALL USAF MED CTR,DEPT INFECT DIS,SGHMI,LACKLAND AFB,TX 78236, USA. NR 18 TC 9 Z9 9 U1 0 U2 0 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 1058-4838 J9 CLIN INFECT DIS JI Clin. Infect. Dis. PD NOV PY 1992 VL 15 IS 5 BP 855 EP 857 PG 3 WC Immunology; Infectious Diseases; Microbiology SC Immunology; Infectious Diseases; Microbiology GA JX339 UT WOS:A1992JX33900012 PM 1445983 ER PT J AU ANDERSON, C AF ANDERSON, C TI ADA-9X PROJECT-MANAGEMENT SO COMMUNICATIONS OF THE ACM LA English DT Article C1 USAF,PHILIPS LAB,ALBUQUERQUE,NM. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ASSOC COMPUTING MACHINERY PI NEW YORK PA 1515 BROADWAY, NEW YORK, NY 10036 SN 0001-0782 J9 COMMUN ACM JI Commun. ACM PD NOV PY 1992 VL 35 IS 11 BP 83 EP 84 DI 10.1145/138844.138851 PG 2 WC Computer Science, Hardware & Architecture; Computer Science, Software Engineering; Computer Science, Theory & Methods SC Computer Science GA JV982 UT WOS:A1992JV98200017 ER PT J AU CHIEN, LS PALAZOTTO, AN AF CHIEN, LS PALAZOTTO, AN TI NONLINEAR SNAPPING CONSIDERATIONS FOR LAMINATED CYLINDRICAL PANELS SO COMPOSITES ENGINEERING LA English DT Article ID SHEAR AB A higher-order displacement function is incorporated within nonlinear deformation shell theory in order to investigate laminated composite cylindrical shells under large deformation. The second Piola stress and Green strain tensors are used in the formulation. Furthermore, both static and dynamic features of a cylindrical panel during the snapping process are discussed. RP CHIEN, LS (reprint author), USAF,INST TECHNOL,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433, USA. NR 13 TC 2 Z9 2 U1 1 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0961-9526 J9 COMPOS ENG JI Compos. Eng. PD NOV PY 1992 VL 2 IS 8 BP 631 EP 639 DI 10.1016/0961-9526(92)90021-W PG 9 WC Engineering, Multidisciplinary; Materials Science, Composites SC Engineering; Materials Science GA JC460 UT WOS:A1992JC46000002 ER PT J AU BOURGEOIS, JA NISENBAUM, J DREXLER, KG DOBBINS, KM HALL, MJ AF BOURGEOIS, JA NISENBAUM, J DREXLER, KG DOBBINS, KM HALL, MJ TI A CASE OF SUBCORTICAL GRAY-MATTER HETEROTOPIA PRESENTING AS BIPOLAR DISORDER SO COMPREHENSIVE PSYCHIATRY LA English DT Article ID CARBAMAZEPINE; MR C1 USAF,MED CTR,DEPT RADIOL,WRIGHT PATTERSON AFB,OH 45433. RP BOURGEOIS, JA (reprint author), USAF,MED CTR,DEPT PSYCHIAT,SGHAE,WRIGHT PATTERSON AFB,OH 45433, USA. NR 8 TC 12 Z9 12 U1 0 U2 1 PU W B SAUNDERS CO PI PHILADELPHIA PA INDEPENDENCE SQUARE WEST CURTIS CENTER, STE 300, PHILADELPHIA, PA 19106-3399 SN 0010-440X J9 COMPR PSYCHIAT JI Compr. Psychiat. PD NOV-DEC PY 1992 VL 33 IS 6 BP 407 EP 410 DI 10.1016/0010-440X(92)90063-V PG 4 WC Psychiatry SC Psychiatry GA JZ054 UT WOS:A1992JZ05400009 PM 1451454 ER PT J AU VONBOKERN, MA PASCHALL, RN WELSH, BM AF VONBOKERN, MA PASCHALL, RN WELSH, BM TI MODAL CONTROL FOR AN ADAPTIVE OPTICS SYSTEM USING LQG COMPENSATION SO COMPUTERS & ELECTRICAL ENGINEERING LA English DT Article ID WAVE-FRONT ESTIMATION; ATMOSPHERIC-TURBULENCE; RECONSTRUCTION; DISTORTION; RESOLUTION; MIRRORS AB This paper demonstrates the application of modal control for a phase-correcting, ground-based adaptive optical telescope. Specifically, it addresses the design of a Linear Quadratic Gaussian (LQG) controller for generating actuator command voltages to a deformable mirror, given a set of slope measurements from a wave front sensor. A baseline mathematical model is constructed which forms the basis of a computer simulation. The actuator influence functions are not decoupled as is often done in zonal control. C1 PHILLIPS LAB,LIMI,KIRTLAND AFB,NM 87117. USAF,INST TECHNOL,WRIGHT PATTERSON AFB,OH 45433. NR 32 TC 3 Z9 3 U1 1 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0045-7906 J9 COMPUT ELECTR ENG JI Comput. Electr. Eng. PD NOV PY 1992 VL 18 IS 6 BP 421 EP 433 DI 10.1016/0045-7906(92)90036-D PG 13 WC Computer Science, Hardware & Architecture; Computer Science, Interdisciplinary Applications; Engineering, Electrical & Electronic SC Computer Science; Engineering GA JU438 UT WOS:A1992JU43800002 ER PT J AU JAMSHIDI, M CARRERAS, RA MEINHARDT, JA BACIAK, MG AF JAMSHIDI, M CARRERAS, RA MEINHARDT, JA BACIAK, MG TI ADAPTIVE-CONTROL OF A SUBAPERTURE TILT IN A PHASED-ARRAY TELESCOPE - THEORY AND EXPERIMENT SO COMPUTERS & ELECTRICAL ENGINEERING LA English DT Article AB Phased array telescopes have been an active area of research in astronomy, imaging, and by the laser propagation community for many years. The phased array telescope function is to synthesize a single large aperture from the combination of separately controlled smaller optical systems. When the aperture is synthesized electronic control is needed to position optical mirrors at closed loop frequency of greater than 1 kHz. The system considered includes all the hardware and software needed to properly control the optical path difference and relative tilt adjacent apertures. The system disturbances such as wind, fluxuation of laser power and deterioration of components would often lead to changes in the system parameters which would not normally be tractable by a constant gain controller. In addition, the traditional constant gain controller could never measure the unmodelled dynamics of the system, and in particular the hardware which performs the optical path difference and tilt correction. Therefore, a new control philosophy which can cope with plant's unmodeled dynamics is employed for continuous maintenance of the telescope's performance. For this purpose, adaptive control has been applied to continuously change the gains of a controller. This control philosophy is known as model-referenced adaptive control which is based on an "ideal" behavior of the system called "reference" model. Then through an iterative mechanism, called the adaptation algorithm, the gains of the controller are adjusted. This paper describes a software and hardware implementation of a model-reference adaptive control for the tilt portion of the phased-array telescope. Simulation results were acquired using a standard, commercially available software package called MATRIXx. Theoretical development, simulations and experimental results of this new control approach for a telescope system are given. The contribution of the application of modern adaptive control techniques for beam control on phased array telescopes is significant. Now the unexpected disturbances always found when moving outside a laboratory environment into field applications can be taken into account. C1 PHILLIPS LAB,LTM,PATRICK AFB,FL. UNIV NEW MEXICO,DEPT ELECT & COMP ENGN,CAD LAB INTELLIGENT & ROBOT SYST,ALBUQUERQUE,NM 87131. PHILLIPS LAB,LMS,KIRTLAND AFB,NM 87117. NR 10 TC 0 Z9 0 U1 2 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0045-7906 J9 COMPUT ELECTR ENG JI Comput. Electr. Eng. PD NOV PY 1992 VL 18 IS 6 BP 435 EP 449 DI 10.1016/0045-7906(92)90037-E PG 15 WC Computer Science, Hardware & Architecture; Computer Science, Interdisciplinary Applications; Engineering, Electrical & Electronic SC Computer Science; Engineering GA JU438 UT WOS:A1992JU43800003 ER PT J AU JOHNSTON, DC WELSH, BM AF JOHNSTON, DC WELSH, BM TI ESTIMATING THE CONTRIBUTION OF DIFFERENT PARTS OF THE ATMOSPHERE TO OPTICAL WAVE-FRONT ABERRATION SO COMPUTERS & ELECTRICAL ENGINEERING LA English DT Article ID LASER GUIDE STARS; PERFORMANCE ANALYSIS; TURBULENCE; TELESCOPES; SYSTEMS AB Current adaptive optical telescope designs use a single deformable mirror (DM), usually conjugated to the aperture plane, to compensate for the cumulative effects of optical turbulence. The corrected field of view (FOV) of an adaptive optics system could theoretically be increased through the use of multiple DMs conjugated to a like number of corresponding planes which sample the turbulence region in altitude. Often, the atmospheric turbulence responsible for the degradation of long-exposure telescope images is concentrated in several relatively strong layers. The logical location for the planes of correction in a multiconjugate adaptive optics (MCAO) system would be the same as these "seeing layers." Each DM would correct for the component of the total wavefront contributed by its associated turbulent layer. However, there is no known method of isolating a particular layer so that its component may be measured. Somehow, the individual components must be estimated using available measurements of the cumulative wavefront at the aperture of the telescope. This paper presents a theoretical analysis of a signal processing technique for determining these phase contributions. The method takes advantage of the spatial diversity of wavefront sensor (WFS) measurements from two or more reference sources. These separate wavefront sensor measurements are processed via minimum mean square error filtering to yield an estimate of the phase perturbation caused by a particular turbulent layer of the atmosphere. Our results indicate that multiple wavefront corrector adaptive optics systems will require much brighter reference sources than single wavefront corrector systems. C1 USAF,INST TECHNOL,WRIGHT PATTERSON AFB,OH 45433. NR 25 TC 11 Z9 11 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0045-7906 J9 COMPUT ELECTR ENG JI Comput. Electr. Eng. PD NOV PY 1992 VL 18 IS 6 BP 467 EP 483 DI 10.1016/0045-7906(92)90039-G PG 17 WC Computer Science, Hardware & Architecture; Computer Science, Interdisciplinary Applications; Engineering, Electrical & Electronic SC Computer Science; Engineering GA JU438 UT WOS:A1992JU43800005 ER PT J AU ROGGEMANN, MC WELSH, BM AF ROGGEMANN, MC WELSH, BM TI ADAPTIVE OPTICAL SIGNAL-PROCESSING AND CONTROL - EDITORIAL SO COMPUTERS & ELECTRICAL ENGINEERING LA English DT Editorial Material C1 PHILLIPS LAB,KIRTLAND AFB,NM 87117. USAF,INST TECHNOL,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0045-7906 J9 COMPUT ELECTR ENG JI Comput. Electr. Eng. PD NOV PY 1992 VL 18 IS 6 BP R5 EP R5 PG 1 WC Computer Science, Hardware & Architecture; Computer Science, Interdisciplinary Applications; Engineering, Electrical & Electronic SC Computer Science; Engineering GA JU438 UT WOS:A1992JU43800001 ER PT J AU MELLINGER, JD PONSKY, JL AF MELLINGER, JD PONSKY, JL TI BLEEDING AFTER ENDOSCOPIC SPHINCTEROTOMY SO GASTROINTESTINAL ENDOSCOPY LA English DT Letter C1 MT SINAI MED CTR,DEPT SURG,CLEVELAND,OH 44106. RP MELLINGER, JD (reprint author), USAF,MED CTR,DEPT SURG,WRIGHT PATTERSON AFB,OH 45433, USA. NR 3 TC 0 Z9 0 U1 0 U2 0 PU MOSBY-YEAR BOOK INC PI ST LOUIS PA 11830 WESTLINE INDUSTRIAL DR, ST LOUIS, MO 63146-3318 SN 0016-5107 J9 GASTROINTEST ENDOSC JI Gastrointest. Endosc. PD NOV-DEC PY 1992 VL 38 IS 6 BP 727 EP 728 DI 10.1016/S0016-5107(92)70581-1 PG 2 WC Gastroenterology & Hepatology SC Gastroenterology & Hepatology GA KE058 UT WOS:A1992KE05800024 PM 1473684 ER PT J AU SKINNER, JP MUNK, BA AF SKINNER, JP MUNK, BA TI MUTUAL COUPLING BETWEEN PARALLEL COLUMNS OF PERIODIC SLOTS IN A GROUND PLANE SURROUNDED BY DIELECTRIC SLABS SO IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION LA English DT Article ID ARRAYS; SPACE AB Arrays of slots with arbitrary orientation in a conducting plane which are infinitely periodic in one dimension and finitely periodic in another dimension are considered. The perfect conducting plane extends infinitely, and is bounded on each side by dielectric slabs of finite thickness and infinite extent. Single columns of slots are represented by equivalent magnetic scattering currents, which are solved for via the moment method. The mutual coupling (admittance) between slot columns in the presence of the stratified media is found by the array scanning method (ASM), which expresses the admittance as the average of the scan admittance of an artificially constructed doubly infinite array of slots over all real scan angles. The technique avoids the use of Sommerfeld integrals, but still gives rise to singularities at scan angles corresponding to the resonant excitation of surface waves. An analytical approximation is made to remove these surface wave singularities, thus making numerical implementation of the method practical. An approximate geometrical optics technique based on the free space periodic Green's function is used to give confidence in the admittance calculations. Fast Fourier transforms (FFT's) are used to accelerate the filling of a large admittance matrix in the moment method. Although results are shown for axial-directed slots, the method is quite general and may be extended to thin slot elements of arbitrary shape and orientation. C1 OHIO STATE UNIV,ELECTROSCI LAB,COLUMBUS,OH 43212. RP SKINNER, JP (reprint author), USAF,INST TECHNOL,DEPT ELECT ENGN,WRIGHT PATTERSON AFB,OH 45433, USA. NR 11 TC 7 Z9 7 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-926X J9 IEEE T ANTENN PROPAG JI IEEE Trans. Antennas Propag. PD NOV PY 1992 VL 40 IS 11 BP 1324 EP 1335 DI 10.1109/8.202710 PG 12 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA KQ613 UT WOS:A1992KQ61300007 ER PT J AU SCHUERMEYER, F MARTINEZ, E SHUR, M GRIDER, D AF SCHUERMEYER, F MARTINEZ, E SHUR, M GRIDER, D TI GATE CURRENT IN COMPLEMENTARY HFETS SO IEEE TRANSACTIONS ON ELECTRON DEVICES LA English DT Meeting Abstract C1 WRIGHT LAB,WL ELET,WRIGHT PATTERSON AFB,OH 45433. UNIV VIRGINIA,DEPT ELECT ENGN,CHARLOTTESVILLE,VA 22903. HONEYWELL INC,SYST & RES CTR,BLOOMINGTON,MN 55420. RI Shur, Michael/A-4374-2016 OI Shur, Michael/0000-0003-0976-6232 NR 2 TC 2 Z9 2 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9383 J9 IEEE T ELECTRON DEV JI IEEE Trans. Electron Devices PD NOV PY 1992 VL 39 IS 11 BP 2647 EP 2648 DI 10.1109/16.163501 PG 2 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA JU737 UT WOS:A1992JU73700054 ER PT J AU HUNSUCKER, JL WALHEIM, RJ AF HUNSUCKER, JL WALHEIM, RJ TI WORK SYSTEM CHANGE IN TECHNICAL ORGANIZATIONS - PROBLEMS AND PROSPECTS FOR AVOIDING THEM SO IEEE TRANSACTIONS ON ENGINEERING MANAGEMENT LA English DT Article AB Flight controllers at the Johnson Space Center in Houston, TX are developing a new data system to use in support of Space Shuttle flights. The new data system will significantly change the way the flight controllers do their jobs. The change is of interest to the engineering manager because it demonstrates how resistance to change can arise, even in highly technical organization, and illustrates useful strategies for overcoming this resistance. This paper focuses on the changes brought about by the new system, and how it is affecting one section in particular, the Mechanical Systems Section. C1 USAF,EDWARDS AFB,CA. RP HUNSUCKER, JL (reprint author), UNIV HOUSTON,DEPT IND ENGN,HOUSTON,TX 77004, USA. NR 5 TC 1 Z9 1 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9391 J9 IEEE T ENG MANAGE JI IEEE Trans. Eng. Manage. PD NOV PY 1992 VL 39 IS 4 BP 303 EP 311 DI 10.1109/17.165411 PG 9 WC Business; Engineering, Industrial; Management SC Business & Economics; Engineering GA JV460 UT WOS:A1992JV46000002 ER PT J AU ASCHER, DP ROBERTS, C FOWLER, A AF ASCHER, DP ROBERTS, C FOWLER, A TI ACIDIFICATION MODIFIED P24 ANTIGEN CAPTURE ASSAY IN HIV SEROPOSITIVES SO JOURNAL OF ACQUIRED IMMUNE DEFICIENCY SYNDROMES AND HUMAN RETROVIROLOGY LA English DT Article DE HIV; ANTIGEN-ANTIBODY COMPLEXES; P24 ANTIGEN ID IMMUNE-COMPLEXES; HOMOSEXUAL MEN; INFECTION; AIDS; ANTIBODY; INDIVIDUALS; COHORT; SERA AB The p24 antigen is only detectable in a minority of asymptomatic HIV infected individuals, which is in part felt to be secondary to immune complex formation with p24 antibody. We sought to determine if the recovery of p24 antigen could be enhanced by an acidification procedure in an attempt to dissociate p24 antibody-antigen complexes. We tested 291 HIV antibody positive serum samples in duplicate, comparing the standard Coulter p24 Antigen Assay with the same assay which was modified by pretreating samples for 60 min with 1.5 M glycine (pH 1.85) and then neutralizing the sample with 1.5 M Tris (pH 9.0). Using the assay cutoff (approximately 7.8 pg/ml), the standard assayed sera and the acid pretreated sera were positive in 65/291 (22.3%) and 167/291 (57.4%) of the samples, respectively. This difference between procedures was statistically significant (p < 0.0001) by McNemar chi2. There was also a statistically significant difference between Walter Reed stages for p24 antigen quantification by ANOVA (p < 0.0001). We have demonstrated that the detection of p24 antigen may be significantly enhanced by acid pretreatment of sera which dissociates immune complexed antigen. We have also shown significant differences exist between Walter Reed stages for quantitative p24 antigen levels. Enhanced detection of p24 antigen may be important prognostically and may allow for the monitoring of antiretroviral therapy. C1 SRA TECHNOL INC,ROCKVILLE,MD. RP ASCHER, DP (reprint author), WILFORD HALL USAF MED CTR,DEPT PEDIAT SGHP,LACKLAND AFB,TX 78236, USA. NR 18 TC 27 Z9 27 U1 0 U2 0 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 1077-9450 J9 J ACQ IMMUN DEF SYND JI J. Acquir. Immune Defic. Syndr. Hum. Retrovirol. PD NOV PY 1992 VL 5 IS 11 BP 1080 EP 1083 PG 4 WC Immunology; Infectious Diseases SC Immunology; Infectious Diseases GA JV265 UT WOS:A1992JV26500003 PM 1403637 ER PT J AU FRIDDELL, JH FRANKE, ME AF FRIDDELL, JH FRANKE, ME TI CONFINED JET THRUST VECTOR CONTROL NOZZLE STUDIES SO JOURNAL OF PROPULSION AND POWER LA English DT Article AB Axial and vectored flow behavior of an axisymmetric confined jet thrust vector control (CJTVC) nozzle is studied experimentally under steady-state and dynamic conditions. Pressurized secondary air injection is used to vector the nozzle at various levels of primary (chamber) air pressure. Attention is focused on internal flow characterization, nozzle instability, and the influence of secondary mass flow rate on vectored side force. The overexpanded flow separation point is located during axial test runs and compared to empirical predictions. Side force and mass flow rate measurements suggest that choked secondary mass flow occurs prior to the secondary mass flow rate that generates a maximum side force. Cavity pressure oscillations and nozzle side force response times are investigated to further characterize the dynamic behavior of the CJTVC nozzle. C1 USAF,INST TECHNOL,WRIGHT PATTERSON AFB,OH 45433. NR 9 TC 1 Z9 1 U1 1 U2 1 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0748-4658 J9 J PROPUL POWER JI J. Propul. Power PD NOV-DEC PY 1992 VL 8 IS 6 BP 1239 EP 1244 DI 10.2514/3.11468 PG 6 WC Engineering, Aerospace SC Engineering GA JY976 UT WOS:A1992JY97600017 ER PT J AU STYTZ, MR FRIEDER, O AF STYTZ, MR FRIEDER, O TI DYNAMIC ADAPTIVE SURFACE RENDERING WITHIN A DISTRIBUTED MEMORY MULTIPROCESSOR SO JOURNAL OF SYSTEMS AND SOFTWARE LA English DT Article ID 3-DIMENSIONAL OBJECTS; RAY; DISPLAY; OCTREES; REPRESENTATION; ARCHITECTURE; MANIPULATION; TREES; DIVISION; IMAGES AB We describe a software-based approach to computing surface renderings from three-dimensional volume primitives using a general purpose distributed memory multiple-instruction, multiple-data multiprocessor architecture. The system reduces total elapsed image rendering time by exploiting distributed computing and using dynamic algorithm selection to reduce individual processor rendering time. We briefly describe the system pipeline architecture, the operation of the pipeline, and the computational bottleneck our research addresses. We then describe two adaptively terminating surface rendering algorithms. Our new approach to reducing surface rendering time uses the two algorithms and a procedure for predicting individual processor workload from the image-rendering parameters. The technique we describe locally and dynamically selects the optimum surface-rendering algorithm at each processor in the multiprocessor machine, thereby substantially reducing the total elapsed image-rendering time. C1 USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,WRIGHT PATTERSON AFB,OH 45433. GEORGE MASON UNIV,DEPT COMP SCI,FAIRFAX,VA 22030. NR 43 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 0164-1212 J9 J SYST SOFTWARE JI J. Syst. Softw. PD NOV PY 1992 VL 19 IS 3 BP 247 EP 259 DI 10.1016/0164-1212(92)90054-N PG 13 WC Computer Science, Software Engineering; Computer Science, Theory & Methods SC Computer Science GA KF883 UT WOS:A1992KF88300004 ER PT J AU SHELTON, RM RYAN, MT AF SHELTON, RM RYAN, MT TI SCURVY - A CASE IN A YOUNG HEALTHY WOMAN SO JOURNAL OF THE AMERICAN ACADEMY OF DERMATOLOGY LA English DT Note C1 FIRST MED GRP,DERMATOL SERV,LANGLEY AFB,VA. FIRST MED GRP,PATHOL SERV,LANGLEY AFB,VA. NR 5 TC 6 Z9 6 U1 0 U2 0 PU MOSBY-YEAR BOOK INC PI ST LOUIS PA 11830 WESTLINE INDUSTRIAL DR, ST LOUIS, MO 63146-3318 SN 0190-9622 J9 J AM ACAD DERMATOL JI J. Am. Acad. Dermatol. PD NOV PY 1992 VL 27 IS 5 BP 773 EP 774 DI 10.1016/S0190-9622(08)80230-7 PN 1 PG 2 WC Dermatology SC Dermatology GA JV886 UT WOS:A1992JV88600024 PM 1430405 ER PT J AU HEAD, HD COLLINS, GJ OBERHEU, KH BRODERICK, GT BROWN, GR SCHEIDT, RA AF HEAD, HD COLLINS, GJ OBERHEU, KH BRODERICK, GT BROWN, GR SCHEIDT, RA TI EXPERIENCE WITH A PARTNERSHIP PROGRAM FOR CARDIAC-SURGERY AT A REGIONAL MILITARY MEDICAL-CENTER SO MILITARY MEDICINE LA English DT Article AB A Partnership Program between USAF Medical Center, Wright-Patterson [WPAFB] and Miami Valley Hospital [MVH], Dayton, Ohio, was created through CHAMPUS to provide cardiac surgical services for eligible patients. During the first year of this program, 82 patients underwent 89 percutaneous transluminal coronary angioplasty [PTCA] procedures. Sixty-one patients underwent cardiac surgery at WPAFB, 50 were referred to MVH due to ineligibility or other reasons, and five were referred to other military or civilian hospitals. The program has been successful with low morbidity and mortality [3%]. Cost savings for PTCAs was $241,853 and for cardiac surgery was $462,046. RP HEAD, HD (reprint author), USAF,MED CTR,WRIGHT PATTERSON AFB,OH 45433, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ASSN MILITARY SURG US PI BETHESDA PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 SN 0026-4075 J9 MIL MED JI Milit. Med. PD NOV PY 1992 VL 157 IS 11 BP 582 EP 586 PG 5 WC Medicine, General & Internal SC General & Internal Medicine GA JY325 UT WOS:A1992JY32500013 PM 1470351 ER PT J AU GOETZ, CG PAPPERT, EJ AF GOETZ, CG PAPPERT, EJ TI TRAUMA AND MOVEMENT-DISORDERS SO NEUROLOGIC CLINICS LA English DT Article ID UNILATERAL ESSENTIAL TREMOR; PARKINSONS-DISEASE; PERIPHERAL TRAUMA; PALATAL MYOCLONUS; BRAIN INJURY; PAINFUL LEGS; HEAD-INJURY; MOVING TOES; TORTICOLLIS; CHOREOATHETOSIS C1 WILFORD HALL USAF MED CTR,DEPT NEUROL,LACKLAND AFB,TX 78236. RP GOETZ, CG (reprint author), RUSH UNIV,RUSH PRESBYTERIAN ST LUKES MED CTR,DEPT NEUROL SCI,1725 W HARRISON,CHICAGO,IL 60612, USA. NR 94 TC 25 Z9 26 U1 0 U2 0 PU W B SAUNDERS CO PI PHILADELPHIA PA INDEPENDENCE SQUARE WEST CURTIS CENTER, STE 300, PHILADELPHIA, PA 19106-3399 SN 0733-8619 J9 NEUROL CLIN JI Neurol. Clin. PD NOV PY 1992 VL 10 IS 4 BP 907 EP 919 PG 13 WC Clinical Neurology; Neurosciences SC Neurosciences & Neurology GA JW158 UT WOS:A1992JW15800007 PM 1435664 ER PT J AU STONE, AB SCHELONKA, RL DREHNER, DM MCMAHON, DP ASCHER, DP AF STONE, AB SCHELONKA, RL DREHNER, DM MCMAHON, DP ASCHER, DP TI DISSEMINATED MYCOBACTERIUM-AVIUM COMPLEX IN NONHUMAN IMMUNODEFICIENCY VIRUS-INFECTED PEDIATRIC-PATIENTS SO PEDIATRIC INFECTIOUS DISEASE JOURNAL LA English DT Article DE NONTUBERCULOUS MYCOBACTERIA; MYCOBACTERIUM-AVIUM COMPLEX; MYCOBACTERIUM-AVIUM-INTRACELLULARE ID NONTUBERCULOUS MYCOBACTERIA; INTRACELLULARE; CHILDREN; TUBERCULOSIS; DIAGNOSIS; DISEASE; BONE C1 WILFORD HALL USAF MED CTR,DEPT PEDIAT,LACKLAND AFB,TX 78236. RP STONE, AB (reprint author), WILFORD HALL USAF MED CTR,SGHL,DEPT PATHOL,LACKLAND AFB,TX 78236, USA. NR 39 TC 36 Z9 36 U1 0 U2 1 PU WILLIAMS & WILKINS PI BALTIMORE PA 351 WEST CAMDEN ST, BALTIMORE, MD 21201-2436 SN 0891-3668 J9 PEDIATR INFECT DIS J JI Pediatr. Infect. Dis. J. PD NOV PY 1992 VL 11 IS 11 BP 960 EP 964 PG 5 WC Immunology; Infectious Diseases; Pediatrics SC Immunology; Infectious Diseases; Pediatrics GA JX818 UT WOS:A1992JX81800011 PM 1454440 ER PT J AU ROONEY, JG CURRIER, DP NITZ, AJ AF ROONEY, JG CURRIER, DP NITZ, AJ TI EFFECT OF VARIATION IN THE BURST AND CARRIER FREQUENCY MODES OF NEUROMUSCULAR ELECTRICAL-STIMULATION ON PAIN PERCEPTION OF HEALTHY-SUBJECTS SO PHYSICAL THERAPY LA English DT Article DE ELECTROTHERAPY, ELECTRICAL STIMULATION; MUSCLE PERFORMANCE, LOWER EXTREMITY; PAIN ID QUADRICEPS FEMORIS MUSCLE; THIGH MUSCULATURE; NERVE-STIMULATION; STRENGTH; ANALOG; SCALES AB The purpose of this study was to explore the effect of various combinations of burst and carrier frequencies of neuromuscular electrical stimulation (NMES) on subjects' perception of pain intensity associated with induction of high intensity muscle contractions Twenty-seven healthy volunteers completed the study After the initial test session, all subjects were treated in three additional sessions with nine combinations of burst frequencies (50, 70, and 90 bursts per second [bps]) and carrier frequencies (2,500, 5,000, and 10,000 Hz) at an NMES amplitude that produced torque equivalent to 50% of maximal voluntary contraction of their quadriceps femoris muscle. Subjects rated each frequency combination for perceived pain intensity with a visual analog scale. The combinations of burst frequencies (50, 70, and 90 bps) and carrier frequencies (2,500 and 5,000 Hz) do not differ from each other in perceived pain intensity but do differ significantly in perceived pain from the combinations of burst frequencies at the carrier frequency of 10,000 Hz. Thus, the clinician may have to try different stimulus combinations on patients at different current training levels to obtain the least individually perceived pain. C1 UNIV KENTUCKY,MED CTR,DIV PHYS THERAPY,ROOM 4,ANNEX 1,LEXINGTON,KY 40536. USAF ACAD,COLORADO SPRINGS,CO 80840. NR 44 TC 21 Z9 22 U1 0 U2 1 PU AMER PHYS THER ASSN PI ALEXANDRIA PA 1111 N FAIRFAX ST, ALEXANDRIA, VA 22314 SN 0031-9023 J9 PHYS THER JI Phys. Ther. PD NOV PY 1992 VL 72 IS 11 BP 800 EP 806 PG 7 WC Orthopedics; Rehabilitation SC Orthopedics; Rehabilitation GA JW989 UT WOS:A1992JW98900008 PM 1409877 ER PT J AU ROONEY, JG CURRIER, DP NITZ, AJ AF ROONEY, JG CURRIER, DP NITZ, AJ TI EFFECT OF VARIATION IN THE BURST AND CARRIER FREQUENCY MODES OF NEUROMUSCULAR ELECTRICAL-STIMULATION ON PAIN PERCEPTION OF HEALTHY-SUBJECTS - RESPONSE SO PHYSICAL THERAPY LA English DT Letter ID QUESTIONNAIRE; ANALOG C1 UNIV KENTUCKY,MED CTR,DIV PHYS THERAPY,LEXINGTON,KY 40536. RP ROONEY, JG (reprint author), USAF ACAD,COLORADO SPRINGS,CO 80840, USA. NR 10 TC 0 Z9 0 U1 2 U2 2 PU AMER PHYS THER ASSN PI ALEXANDRIA PA 1111 N FAIRFAX ST, ALEXANDRIA, VA 22314 SN 0031-9023 J9 PHYS THER JI Phys. Ther. PD NOV PY 1992 VL 72 IS 11 BP 808 EP 809 PG 2 WC Orthopedics; Rehabilitation SC Orthopedics; Rehabilitation GA JW989 UT WOS:A1992JW98900010 ER PT J AU KUO, SP ZHANG, YS LEE, MC KOSSEY, P BARKER, RJ AF KUO, SP ZHANG, YS LEE, MC KOSSEY, P BARKER, RJ TI LABORATORY CHAMBER EXPERIMENTS EXPLORING THE POTENTIAL USE OF ARTIFICIALLY IONIZED LAYERS OF GAS AS A BRAGG REFLECTOR FOR OVER-THE-HORIZON SIGNALS SO RADIO SCIENCE LA English DT Article ID AIR BREAKDOWN ENVIRONMENT; MICROWAVE BREAKDOWN; PULSE-PROPAGATION; PLASMA; NITROGEN; SCATTERING; ATMOSPHERE AB A set of parallel plasma layers is generated by two intersecting microwave pulses in a chamber containing dry air at a pressure comparable to the upper atmosphere. The dependence of breakdown conditions on the pressure and pulse length is examined. The results are shown to be consistent with the appearance of tail erosion of microwave pulse caused by air breakdown. Bragg scattering experiments, using the plasma layers as a Bragg reflector are then performed. Both time domain and frequency domain measurements of wave scattering are conducted. The experimental results are found to agree very well with the theory. Moreover, the time domain measurement of wave scattering provides in unambiguous way for determining the temporal evolution of electron density during the first 100 mus period. A Langmuir double probe is then used to determine the decay rate of electron density during a later time interval (1 to 1.1 ms). The propagation of high-power microwave, pulses through the air is also studied experimentally. The mechanisms responsible for two different degrees of tail erosion have been identified. The optimum amplitude of an 1.1 mus pulse for maximum energy transfer through the air has been determined. C1 USAF,BOLLING AIR FORCE BASE,WASHINGTON,DC 20332. UNIV WISCONSIN,MADISON,WI 53706. MIT,CTR PLASMA FUS,CAMBRIDGE,MA 02139. USAF,PHILLIPS LAB,BEDFORD,MA 01731. RP KUO, SP (reprint author), POLYTECH INST NEW YORK,WEBER RES INST,ROUTE 110,FARMINGDALE,NY 11735, USA. NR 24 TC 6 Z9 6 U1 0 U2 2 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0048-6604 J9 RADIO SCI JI Radio Sci. PD NOV-DEC PY 1992 VL 27 IS 6 BP 851 EP 865 DI 10.1029/92RS00965 PG 15 WC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology & Atmospheric Sciences; Remote Sensing; Telecommunications SC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology & Atmospheric Sciences; Remote Sensing; Telecommunications GA KB002 UT WOS:A1992KB00200008 ER PT J AU PETERSON, DK MILLER, PE FISCHER, WA ZMUD, RW AF PETERSON, DK MILLER, PE FISCHER, WA ZMUD, RW TI TECHNOLOGY MEASUREMENT AND THE APPRAISAL OF INFORMATION TECHNOLOGY SO TECHNOLOGICAL FORECASTING AND SOCIAL CHANGE LA English DT Article AB The dynamic nature of information technologies can prove troublesome to individuals given the responsibility for managing their acquisition and deployment. Not only is there a steady stream of new products, but existing products are periodically enhanced to reflect technical advances, competitors' actions, or both. The net result is that the general manager and the information systems manager alike face an overwhelming set of alternative product choices. This paper illustrates a relatively simple approach to technology measurement, a systematic procedure for assessing the state of the art of an industry. Technology measurement enables managers to better evaluate product choices. Given its generally high level of managerial awareness and interest, the microcomputer industry was selected as the vehicle for illustrating this approach to technology measurement. C1 UNIV N CAROLINA,BUSINESS ADM,CHAPEL HILL,NC 27514. RP PETERSON, DK (reprint author), USAF,SCH SYST & LOGIST,INST TECHNOL,DEPT LOGIST MANAGEMENT,WRIGHT PATTERSON AFB,OH 45433, USA. NR 10 TC 4 Z9 4 U1 1 U2 2 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 0040-1625 J9 TECHNOL FORECAST SOC JI Technol. Forecast. Soc. Chang. PD NOV PY 1992 VL 42 IS 3 BP 251 EP 259 DI 10.1016/0040-1625(92)90034-Q PG 9 WC Business; Planning & Development SC Business & Economics; Public Administration GA JU481 UT WOS:A1992JU48100002 ER PT J AU THOMAS, JM STARK, G KATAYAMA, DH AF THOMAS, JM STARK, G KATAYAMA, DH TI AN ANALYSIS OF THE KINETICS FOR THE N2(A3-SIGMA-U+,UPSILON')+CO(X1-SIGMA+,UPSILON''=0) ENERGY-TRANSFER REACTION AND AN UPPER LIMIT FOR THE RATE CONSTANTS OF THE REACTIONS CO(A3-PI,UPSILON'=0 AND 1)+CF4 SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article ID VIBRATIONAL-RELAXATION; CO; EXCITATION; MOLECULES; CH4; CF4; NO AB The vibrational level distribution of the CO(a 3PI) produced in the title reaction was measured in a rapidly pumped discharge-flow reactor at a total pressure of approximately 2 Torr and approximately 297 K. The emission from the Co(a 3PI,upsilon'-->X1SIGMA+,upsilon") Cameron bands, observed from the product CO(a) formed in the title reaction, was collected with a 2.2-m vacuum-ultraviolet spectrograph-monochromator utilizing both photographic and photoelectric techniques. For N2(A,upsilon' less-than-or-equal-to 4) + CO(X,upsilon"=0) we obtain a CO(a,upsilon') population ratio of 1.00:0.85 for upsilon'=0 and 1, respectively. This branching ratio differs from previous results for N2(A,upsilon' greater-than-or-equal-to 0) which did not correct for competing removal processes of the CO(a) state. In order to obtain these results it was necessary to measure the room temperature biomolecular rate constants, k(upsilon')'s, for the CO(a,upsilon'=0 and 1) + CF4 reactions which were determined to be less-than-or-equal-to 5 x 10(-14) cm3 molecule-1 s-1. C1 USAF,GPID,PHILLIPS LAB,BEDFORD,MA 01731. USAF,GEOPHYS LAB,WASHINGTON,DC 20330. WELLESLEY COLL,DEPT PHYS,WELLESLEY,MA 02181. NR 31 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD OCT 15 PY 1992 VL 96 IS 21 BP 8445 EP 8447 DI 10.1021/j100200a044 PG 3 WC Chemistry, Physical SC Chemistry GA JU555 UT WOS:A1992JU55500044 ER PT J AU HAY, RS EVANS, B AF HAY, RS EVANS, B TI THE COHERENCY STRAIN DRIVING FORCE FOR CIGM IN NONCUBIC CRYSTALS - COMPARISON WITH INSITU OBSERVATIONS IN CALCITE SO ACTA METALLURGICA ET MATERIALIA LA English DT Article ID GRAIN-BOUNDARY MIGRATION; MO-NI ALLOY; CHEMICALLY-INDUCED MIGRATION; DISCONTINUOUS PRECIPITATION; LIQUID-FILM; DIFFUSION; SOLIDS; INTERFACE; MECHANISM; STRESS AB Chemically induced grain boundary migration (CIGM) was observed in situ in calcite bicrystals in an optical microscope heat-stage. Three high-angle and two low-angle boundaries were observed. The solute was SrCO3. Migration rates and solute concentrations were compared with boundary orientations. The coherency strain driving force was generalized for plane stress in any crystal system and applied to calcite. Because of the high anisotropy of lattice parameter expansion with Sr addition, a strong dependence of Sr concentration and migration driving force on crystallographic orientation was predicted. However, no correlation between SrCO3 concentration and boundary orientation was observed, and little evidence for driving force dependence on orientation was found. Some evidence for a correlation between solute concentration and migration rate was found, but the nature of the correlation changed between bicrystals. Migration rates always decreased with time. Near-surface solute concentrations were depressed beneath values expected for stress-free equilibrium and plane stress modified equilibrium, but without obvious orientation dependence. which suggested that the coherency stress had a hydrostatic component. A PV driving force for migration might be present if solute diffusion fields around grain boundaries caused pressure gradients around the boundaries. C1 MIT, DEPT EARTH ATMOSPHER & PLANETARY SCI, CAMBRIDGE, MA 02139 USA. RP WRIGHT LAB, MAT DIRECTORATE, WRIGHT PATTERSON AIR FORCE BASE, DAYTON, OH 45433 USA. NR 47 TC 6 Z9 6 U1 2 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0956-7151 J9 ACTA METALL MATER JI Acta Metall. Mater. PD OCT PY 1992 VL 40 IS 10 BP 2581 EP 2593 DI 10.1016/0956-7151(92)90327-B PG 13 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA JM229 UT WOS:A1992JM22900012 ER PT J AU RIZZETTA, DP AF RIZZETTA, DP TI NUMERICAL-SIMULATION OF SLOT INJECTION INTO A TURBULENT SUPERSONIC STREAM SO AIAA JOURNAL LA English DT Article AB Steady flowfields resulting from slot injection at the surface of a flat plate in a freestream with a Mach number of 3.7 and a unit Reynolds number of 5.83 x 10(6)/m were simulated numerically by integration of the time-dependent compressible mass-averaged Navier-Stokes equations. Effects of fine scale turbulence were represented by a two-equation (k-epsilon) closure model that included a generalized formulation, low Reynolds number terms, and a compressibility correction. A grid mesh step-size study is provided to assess resolution requirements of the numerical solutions, and the effect of the compressibility correction is examined. A total of 15 cases were computed, comprising a range of slot widths and slot total pressure ratios. Comparison is made with experimental data in terms of surface static pressure distributions, the length of the upstream separation region, and the height of the Mach surface. RP RIZZETTA, DP (reprint author), WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433, USA. NR 24 TC 21 Z9 22 U1 0 U2 2 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0001-1452 J9 AIAA J JI AIAA J. PD OCT PY 1992 VL 30 IS 10 BP 2434 EP 2439 PG 6 WC Engineering, Aerospace SC Engineering GA JR887 UT WOS:A1992JR88700010 ER PT J AU GRANDHI, RV VENUGOPAL, NS VENKAYYA, VB AF GRANDHI, RV VENUGOPAL, NS VENKAYYA, VB TI GENERALIZED COMPOUND SCALING ALGORITHM AND APPLICATION TO MINIMUM WEIGHT DESIGN OF PLATE STRUCTURES SO AIAA JOURNAL LA English DT Article ID FINITE-ELEMENTS AB This paper presents the generalized compound scaling algorithm and its application to optimum weight design of plate structures. The optimum designs are reached by simply scaling the design variables to an optimum intersection of multiple constraints. A four-noded isoparametric plate element is used for modeling the structure. Sensitivity computations and the optimization algorithm are discussed. The optimization cost involved (excluding the finite element analyses) is very small using this algorithm. The procedure is demonstrated on three example problems using stress and displacement constraints with side bounds on the design variables. C1 WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. RP GRANDHI, RV (reprint author), WRIGHT STATE UNIV,DAYTON,OH 45435, USA. NR 18 TC 1 Z9 1 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0001-1452 J9 AIAA J JI AIAA J. PD OCT PY 1992 VL 30 IS 10 BP 2532 EP 2539 DI 10.2514/3.11257 PG 8 WC Engineering, Aerospace SC Engineering GA JR887 UT WOS:A1992JR88700023 ER PT J AU ADAMS, JG ARNOLD, R SIMINOFF, L WOLFSON, AB AF ADAMS, JG ARNOLD, R SIMINOFF, L WOLFSON, AB TI ETHICAL CONFLICTS IN THE PREHOSPITAL SETTING SO ANNALS OF EMERGENCY MEDICINE LA English DT Article AB Study objective: To assess the range of ethical conflicts that confront prehospital care providers. Design: Convenience sample, from October 1989 to January 1990. Setting: An urban advanced life support emergency medical service that transports approximately 3,000 patients per month. Methods: Six hundred seven paramedic responses were analyzed by a single observer. An ethical conflict was identified when the paramedic faced a dilemma about what "ought to be done' and the paramedic's values conflicted or potentially conflicted with the patient's. Cases with potential ethical consequence were brought to experts in medical ethics and epidemiology for further analysis and classification. Results: Ethical conflicts arose in 14.4% of paramedic responses (88 of 607 cases). Twenty-seven percent of the conflicts involved issues of informed consent, such as refusal of treatment or transport, conflicts of hospital destination, treatment of minors, and consent for research. Difficulties regarding the duty of the paramedics, usually under threatening circumstances, accounted for 19% of the dilemmas encountered. Requests for limitation of resuscitation accounted for 14%. Other circumstances that presented ethical conflicts involved questions of patient competence (17%), resource allocation (10%), confidentiality (8%), truth telling (3%), and training (1%). Conclusion: The data demonstrate a range of ethical conflicts in the prehospital setting and point to areas in which policy needs to be developed. The data also can be used in a prehospital ethics curriculum for paramedics and physicians. Because case sampling was not strictly random, absolute conclusions should not be drawn regarding the frequency of the dilemmas. RP ADAMS, JG (reprint author), WILFORD HALL USAF MED CTR,SGHAE EMERGENCY SERV,LACKLAND AFB,TX 78236, USA. RI Siminoff, Laura /H-6277-2012 NR 0 TC 13 Z9 13 U1 0 U2 2 PU MOSBY-YEAR BOOK INC PI ST LOUIS PA 11830 WESTLINE INDUSTRIAL DR, ST LOUIS, MO 63146-3318 SN 0196-0644 J9 ANN EMERG MED JI Ann. Emerg. Med. PD OCT PY 1992 VL 21 IS 10 BP 1259 EP 1265 DI 10.1016/S0196-0644(05)81759-7 PG 7 WC Emergency Medicine SC Emergency Medicine GA JR196 UT WOS:A1992JR19600020 PM 1416311 ER PT J AU COSTANTINO, PD NUSS, DW FRIEDMAN, CD SNYDERMAN, CH NARAYANAN, K JOHNSON, JT HOUSTON, G AF COSTANTINO, PD NUSS, DW FRIEDMAN, CD SNYDERMAN, CH NARAYANAN, K JOHNSON, JT HOUSTON, G TI EXPERIMENTAL TRACHEAL REPLACEMENT USING A REVASCULARIZED JEJUNAL AUTOGRAFT WITH AN IMPLANTABLE DACRON MESH TUBE SO ANNALS OF OTOLOGY RHINOLOGY AND LARYNGOLOGY LA English DT Article DE AUTOGRAFT; JEJUNUM; MICROVASCULAR ANASTOMOSIS; RECONSTRUCTION; TRACHEA ID RECONSTRUCTION AB Defects comprising more than 50% of the trachea cannot be reliably reconstructed by any current technique or prosthesis. A composite tracheal replacement implant consisting of a Dacron-urethane mesh tube and revascularized jejunal autograft was applied to this problem. This composite implant was used to replace 7 to 10 cm of trachea in eight dogs. The implant was sewn to the outside (serosal surface) of the jejunum to provide permanent structural support to the autograft, and an intraluminal silicone tube was placed inside the jejunal segment and left for 4 weeks following reconstruction. Six of eight animals survived the predetermined time periods and were killed painlessly in groups of two animals at 1, 2, and 6 months after removal of the intraluminal silicone tube. Postoperative intubation, ventilation, or tracheostomy was not necessary. Excessive secretions were not seen in any of the animals, and a fair to good performance status was maintained until death in all but one animal. Histologic examination revealed slight thinning of the jejunal mucosa, with no change in the jejunal muscularis. These data suggest that with further refinement this composite implant may be a viable reconstructive option in humans. C1 WILFORD HALL USAF MED CTR,DEPT ORAL PATHOL,LACKLAND AFB,TX 78236. LOYOLA UNIV,STRITCH SCH MED,DEPT OTOLARYNGOL HEAD & NECK SURG,MAYWOOD,IL 60153. LOUISIANA STATE UNIV,MED CTR,SCH MED,DEPT OTOLARYNGOL HEAD & NECK SURG,NEW ORLEANS,LA 70112. UNIV PITTSBURGH,SCH MED,DEPT OTOLARYNGOL HEAD & NECK SURG,PITTSBURGH,PA 15261. UNIV PITTSBURGH,SCH MED,DEPT PLAST SURG,PITTSBURGH,PA 15261. YALE UNIV,SCH MED,DEPT OTOLARYNGOL HEAD & NECK SURG,NEW HAVEN,CT 06510. RP COSTANTINO, PD (reprint author), WILFORD HALL USAF MED CTR,DEPT OTOLARYNGOL HEAD & NECK SURG,SGHSO,LACKLAND AFB,TX 78236, USA. NR 12 TC 20 Z9 24 U1 0 U2 1 PU ANNALS PUBL CO PI ST LOUIS PA 4507 LACLEDE AVE, ST LOUIS, MO 63108 SN 0003-4894 J9 ANN OTO RHINOL LARYN JI Ann. Otol. Rhinol. Laryngol. PD OCT PY 1992 VL 101 IS 10 BP 807 EP 814 PN 1 PG 8 WC Otorhinolaryngology SC Otorhinolaryngology GA JU235 UT WOS:A1992JU23500002 PM 1416634 ER PT J AU SMITH, WB GRABSKI, WJ MCCOLLOUGH DAVIS, TL AF SMITH, WB GRABSKI, WJ MCCOLLOUGH DAVIS, TL TI IMMUNOFLUORESCENCE FINDINGS IN LICHEN-PLANOPILARIS - A CONTRASTING EXPERIENCE SO ARCHIVES OF DERMATOLOGY LA English DT Letter C1 WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. RP SMITH, WB (reprint author), BROOKE ARMY MED CTR,DERMATOL SERV,FT SAM HOUSTON,TX 78234, USA. NR 3 TC 7 Z9 7 U1 0 U2 0 PU AMER MEDICAL ASSOC PI CHICAGO PA 515 N STATE ST, CHICAGO, IL 60610 SN 0003-987X J9 ARCH DERMATOL JI Arch. Dermatol. PD OCT PY 1992 VL 128 IS 10 BP 1405 EP 1406 PG 2 WC Dermatology SC Dermatology GA JT343 UT WOS:A1992JT34300023 PM 1417036 ER PT J AU NUNNELEY, SA ANTUNANO, MJ BOMALASKI, SH AF NUNNELEY, SA ANTUNANO, MJ BOMALASKI, SH TI THERMAL CONVERGENCE FAILS TO PREDICT HEAT TOLERANCE LIMITS SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID STRESS; STRAIN AB Work under very hat, humid conditions may raise skin temperature (TskBAR) to meet rectal temperature (Tre). This convergence has been said to produce imminent collapse and therefore to predict human tolerance limits for work in heat, especially for those wearing impermeable protective clothing. The purpose of this study was to examine the ability of subjects to continue work beyond the time when they experienced convergence. A total of 15 healthy adult volunteers participated in two protocols: A) Each of nine subjects performed four experiments wearing impermeable clothing and walking on an inclined treadmill at a metabolic rate averaging 450 W with dry bulb temperature (Tdb) 29 or 38-degrees-C; B) Each of nine subjects performed eight experiments wearing heavy, semipermeable clothing under a range of conditions involving Tdb = 22-40-degrees-C, relative humidity 15-88%, and work load = 200-500 W. Convergence occurred in 42 cases; in the majority (60%) the subject continued walking until Tre rose to the criterion temperature 39-degrees-C, working for 10-45 min after convergence. No subject approached collapse, nor did convergence have any special effect on the rate of rise of temperature or heart rate. Thus, while convergence marks severe, time-limited heat stress, it does not accurately predict tolerance limits in highly motivated subjects. Termination of work at convergence would unnecessarily truncate heat stress exposures, depriving investigators of valuable data and industrial users of a large portion of their safe work time. RP NUNNELEY, SA (reprint author), USAF,ARMSTRONG LAB,CFTO,BROOKS AFB,TX 78235, USA. NR 14 TC 9 Z9 9 U1 0 U2 2 PU AEROSPACE MEDICAL ASSOC PI ALEXANDRIA PA 320 S HENRY ST, ALEXANDRIA, VA 22314-3579 SN 0095-6562 J9 AVIAT SPACE ENVIR MD JI Aviat. Space Environ. Med. PD OCT PY 1992 VL 63 IS 10 BP 886 EP 890 PG 5 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA JQ395 UT WOS:A1992JQ39500006 PM 1417651 ER PT J AU ESSELL, JH THOMPSON, JM HARMAN, GS HALVORSON, RD SNYDER, MJ CALLANDER, NS CLEMENT, DJ AF ESSELL, JH THOMPSON, JM HARMAN, GS HALVORSON, RD SNYDER, MJ CALLANDER, NS CLEMENT, DJ TI PILOT TRIAL OF PROPHYLACTIC URSODIOL TO DECREASE THE INCIDENCE OF VENOOCCLUSIVE DISEASE OF THE LIVER IN ALLOGENEIC BONE-MARROW TRANSPLANT PATIENTS SO BONE MARROW TRANSPLANTATION LA English DT Article ID PRIMARY BILIARY-CIRRHOSIS; HEPATIC VENOOCCLUSIVE DISEASE; REGIMEN-RELATED TOXICITY; URSODEOXYCHOLIC ACID; HOST-DISEASE; VENOCCLUSIVE DISEASE; ACUTE GRAFT; BUSULFAN; PREVENTION; METHOTREXATE AB Ursodiol is a hydrophilic, non-hepatotoxic bile salt indicated for the medical treatment of cholesterol gallstones. This pilot study explored the use of prophylactic ursodiol in an attempt to decrease the incidence and severity of veno-occlusive disease (VOD) of the liver following allogeneic bone marrow transplantation (BMT). Between February 1991 and January 1992, 22 consecutive patients undergoing BMT for hematologic malignancies received the BU(4)/CY(2) preparative regimen and CSA/MTX for GVHD prophylaxis. Ursodiol, 600-900 mg daily by mouth was begun at least 1 day prior to beginning the preparative regimen. Results for this pilot group were compared to a control group of 28 consecutive patients transplanted between June 1989 and January 1991 with the same regimen without ursodiol. There were no significant differences in disease or clinical status between the groups pretransplant. However, mean baseline AST levels were significantly higher in the ursodiol group, 28.0 U/l vs 18.1 U/l in the control group (p = 0.001). The median maximum bilirubin observed post-transplant was 2.35 mg/dl (range 0.9-45) in the ursodiol group, and 5.05 mg/dl (range 0.7-29.4) in controls. The incidence of VOD was 2/22 (9.1%) in the ursodiol group and 18/28 (64.3%) in controls (p = 0.0001). Death due to VOD occurred in 1/22 patients (4.5%) in the ursodiol group and in 6/28 (21.4%) controls (p = 0.12). Our data suggest that ursodiol may decrease the incidence of VOD in allogeneic BMT patients. C1 WILFORD HALL USAF MED CTR,DEPT GASTROENTEROL,LACKLAND AFB,TX 78236. RP ESSELL, JH (reprint author), WILFORD HALL USAF MED CTR,SGHMH,DEPT HEMATOL MED ONCOL,LACKLAND AFB,TX 78236, USA. NR 41 TC 50 Z9 50 U1 0 U2 0 PU STOCKTON PRESS PI BASINGSTOKE PA HOUNDMILLS, BASINGSTOKE, HAMPSHIRE, ENGLAND RG21 6XS SN 0268-3369 J9 BONE MARROW TRANSPL JI Bone Marrow Transplant. PD OCT PY 1992 VL 10 IS 4 BP 367 EP 372 PG 6 WC Biophysics; Oncology; Hematology; Immunology; Transplantation SC Biophysics; Oncology; Hematology; Immunology; Transplantation GA JT181 UT WOS:A1992JT18100009 PM 1422493 ER PT J AU RONE, JK DONS, RF REED, HL AF RONE, JK DONS, RF REED, HL TI THE EFFECT OF ENDURANCE TRAINING ON SERUM TRIIODOTHYRONINE KINETICS IN MAN - PHYSICAL CONDITIONING MARKED BY ENHANCED THYROID-HORMONE METABOLISM SO CLINICAL ENDOCRINOLOGY LA English DT Article ID BROWN ADIPOSE-TISSUE; NONTHYROIDAL ILLNESSES; THYROXINE; T4 AB OBJECTIVE We studied the relationship between endurance training, aerobic capacity, and T3 metabolism in healthy euthyroid men. DESIGN T3 kinetic studies performed on two groups of subjects differentiated on the basis of physical activity status and aerobic capacity. SUBJECTS Five endurance-trained athletes and five sedentary controls (mean+/-SD VO2 max=48.2+/-7.1 vs 23.2+/-4.5 ml/kg/min, respectively) matched for age, body surface area, lean body mass, and baseline thyroid function. MEASUREMENTS Kinetic analysis performed using serial serum T3 levels measured following oral T3 administration. Metabolic clearance rate, total volume of distribution, disposal rate, and total body pool calculated using non-compartmental analysis. RESULTS When normalized for lean body mass, all kinetic parameters were 25-38% greater in the athletic group compared to controls (P<0.05). Total volume of distribution, disposal rate, and total body pool were positively correlated with aerobic capacity (r= +0.69 to +0.79; P<0.05). Metabolic clearance rate was positively correlated to a non-significant degree. CONCLUSIONS These results confirm the findings of prior studies that thyroid hormone metabolism is altered by physical conditioning. In addition, we demonstrated a positive correlation between aerobic capacity and several parameters of T3 kinetics. Differences in absolute lean body mass cannot explain these findings; rather it appears that there is something qualitatively different in the way endurance-trained tissue processes thyroid hormone, compared to untrained tissue. The study was not designed to elucidate these differences at the cellular level; however, it does support a link between muscle physiology and T3 activity and may suggest a physiological role for thyroid hormone in physical conditioning. C1 WILFORD HALL USAF MED CTR,DEPT ENDOCRINOL & METAB,LACKLAND AFB,TX 78236. MADIGAN ARMY MED CTR,DEPT ENDOCRINOL,FT LEWIS,WA. NR 32 TC 20 Z9 20 U1 0 U2 0 PU BLACKWELL SCIENCE LTD PI OXFORD PA OSNEY MEAD, OXFORD, OXON, ENGLAND OX2 0EL SN 0300-0664 J9 CLIN ENDOCRINOL JI Clin. Endocrinol. PD OCT PY 1992 VL 37 IS 4 BP 325 EP 330 DI 10.1111/j.1365-2265.1992.tb02332.x PG 6 WC Endocrinology & Metabolism SC Endocrinology & Metabolism GA JQ253 UT WOS:A1992JQ25300004 PM 1483287 ER PT J AU SOLIGAN, J AF SOLIGAN, J TI UNITED-STATES FORCES IN EUROPE - WHERE DO WE GO FROM HERE SO COMPARATIVE STRATEGY LA English DT Article AB One of the key post-cold-war challenges facing the United States is determining the future role of U.S. forces in Europe. This article looks at enduring U.S. interests in Europe, emerging challenges, strategic choices, and criteria the United States should use if the security environment allows, or requires, U.S. forward-basing in Europe to drop below the administration's proposed level of 150,000. The recommendations are a dramatic break from the past. How successful the United States is in achieving its goals will depend largely on how well the United States meets its own domestic and foreign policy needs, and, perhaps equally importantly, by how well other nations perceive the United States will meet their future expectations and requirements. RP SOLIGAN, J (reprint author), USAF,WASHINGTON,DC 20330, USA. NR 11 TC 0 Z9 0 U1 0 U2 0 PU TAYLOR & FRANCIS PI BRISTOL PA 1900 FROST ROAD, SUITE 101, BRISTOL, PA 19007-1598 SN 0149-5933 J9 COMP STRATEGY PD OCT-DEC PY 1992 VL 11 IS 4 BP 475 EP 501 DI 10.1080/01495939208402890 PG 27 WC International Relations; Political Science SC International Relations; Government & Law GA KG318 UT WOS:A1992KG31800007 ER PT J AU SHUTE, VJ AF SHUTE, VJ TI MADE-UP MINDS - A CONSTRUCTIVIST APPROACH TO ARTIFICIAL-INTELLIGENCE - DRESCHER,GL SO CONTEMPORARY PSYCHOLOGY LA English DT Book Review RP SHUTE, VJ (reprint author), ARMSTRONG LAB,HUMAN RESOURCES DIRECTORATE,BROOKS AFB,TX 78235, USA. NR 2 TC 0 Z9 0 U1 0 U2 1 PU AMER PSYCHOLOGICAL ASSOC PI WASHINGTON PA 750 FIRST ST NE, WASHINGTON, DC 20002-4242 SN 0010-7549 J9 CONTEMP PSYCHOL JI Comtemp. Psychol. PD OCT PY 1992 VL 37 IS 10 BP 1057 EP 1058 PG 2 WC Psychology, Multidisciplinary SC Psychology GA JU791 UT WOS:A1992JU79100051 ER PT J AU LAIRSON, DR PUGH, JA KAPADIA, AS LORIMOR, RJ JACOBSON, J VELEZ, R AF LAIRSON, DR PUGH, JA KAPADIA, AS LORIMOR, RJ JACOBSON, J VELEZ, R TI COST-EFFECTIVENESS OF ALTERNATIVE METHODS FOR DIABETIC-RETINOPATHY SCREENING SO DIABETES CARE LA English DT Article AB OBJECTIVE - To assess from the perspectives of a government delivery system and patients, the cost-effectiveness of the 45-degree retinal camera compared to the standard ophthalmologists exam and an ophthalmic exam by a physician's assistant or nurse practitioner technician, for detecting nonproliferative and proliferative diabetic retinopathy. RESEARCH DESIGN AND METHODS - Comparison of 45-degree fundus photographs with and without pharmacological pupil dilation taken by technicians and interpreted by experts, direct and indirect ophthalmoscopy by ophthalmologists, and direct ophthalmoscopy by technicians with seven-field stereoscopic fundus photography (reference standard). Costs were estimated from market prices and actual resource use. The study included 352 patients attending outpatient diabetes and general-medicine clinics at VA and DOD facilities. RESULTS - Medical system costs per true positive were: 45-degree photos with dilation, $295; 45-degree photos without dilation, $378; ophthalmologist, $390; and technician, $794. Patient costs per true positive were: 45-degree photos with dilation, $139; 45-degree photos without dilation, $171; ophthalmologist, $306; and technician, $1009. Cost-effectiveness is sensitive to program size due to high fixed cost of the camera methods but not to prevalence. Cost-effectiveness of the technician exam is strongly affected by its sensitivity. CONCLUSIONS - Primary-care screening with retinal photographs through pharmacologically dilated pupils for diabetic retinopathy is an appropriate and cost-effective alternative to screening by an ophthalmologist in this setting. Ophthalmologists are scarce, primary-care physicians are extremely busy, and large clinics allow fixed equipment costs to be spread across many patients. C1 USAF,WILFORD HALL MED CTR,LACKLAND AFB,TX 78236. AUDIE L MURPHY MEM VET ADM MED CTR,SAN ANTONIO,TX 78284. RP LAIRSON, DR (reprint author), UNIV TEXAS,HLTH SCI CTR,SCH PUBL HLTH,POB 20186,HOUSTON,TX 77225, USA. OI Pugh, Jacqueline/0000-0003-4933-141X NR 21 TC 54 Z9 55 U1 0 U2 2 PU AMER DIABETES ASSOC PI ALEXANDRIA PA 1660 DUKE ST, ALEXANDRIA, VA 22314 SN 0149-5992 J9 DIABETES CARE JI Diabetes Care PD OCT PY 1992 VL 15 IS 10 BP 1369 EP 1377 DI 10.2337/diacare.15.10.1369 PG 9 WC Endocrinology & Metabolism SC Endocrinology & Metabolism GA JP726 UT WOS:A1992JP72600021 PM 1425103 ER PT J AU CHANG, MCF HUANG, CI AF CHANG, MCF HUANG, CI TI SPECIAL ISSUE ON THE 1991 GAAS IC SYMPOSIUM - FOREWORD SO IEEE JOURNAL OF SOLID-STATE CIRCUITS LA English DT Editorial Material C1 USAF,WRIGHT LAB,MAT AVION & SOLID STAT ELECTR DIRECTORATES,WRIGHT PATTERSON AFB,OH 45433. RP CHANG, MCF (reprint author), ROCKWELL INT SCI CTR,THOUSAND OAKS,CA 91360, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9200 J9 IEEE J SOLID-ST CIRC JI IEEE J. Solid-State Circuit PD OCT PY 1992 VL 27 IS 10 BP 1311 EP 1312 PG 2 WC Engineering, Electrical & Electronic SC Engineering GA JP586 UT WOS:A1992JP58600001 ER PT J AU SANDERSON, RB TSUI, JBY FREESE, N AF SANDERSON, RB TSUI, JBY FREESE, N TI REDUCTION OF ALIASING AMBIGUITIES THROUGH PHASE-RELATIONS SO IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS LA English DT Article AB A method for digital determination of a single frequency from a sine wave sampled at less than the Nyquist rate is discussed. The method makes use of phase shift information to eliminate the aliasing ambiguity. Multiple sampled data are required to completely eliminate ambiguity. Computer modeling using simulated data corrupted by uncorrelated Gaussian noise was used to verify the approach. The results demonstrate that the frequency of an input sine wave can be correctly identified. This approach can be applied to electronic warfare (EW) receivers to increase their input bandwidth. C1 USAF,WRIGHT LABS,AAWP3,WRIGHT PATTERSON AFB,OH 45433. SYST RES LABS INC,DAYTON,OH 45440. RP SANDERSON, RB (reprint author), USAF,WRIGHT RES & DEV CTR,AVION LAB,WRIGHT PATTERSON AFB,OH 45433, USA. NR 9 TC 8 Z9 8 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9251 J9 IEEE T AERO ELEC SYS JI IEEE Trans. Aerosp. Electron. Syst. PD OCT PY 1992 VL 28 IS 4 BP 950 EP 956 DI 10.1109/7.165358 PG 7 WC Engineering, Aerospace; Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA JV954 UT WOS:A1992JV95400003 ER PT J AU COSENTINO, RJ VACCARO, JJ AF COSENTINO, RJ VACCARO, JJ TI ADAPTATION OF THE MACTAGGART AND JACK COMPLEX MULTIPLICATION ALGORITHM FOR FLOATING-POINT OPERATORS SO IEEE TRANSACTIONS ON COMPUTERS LA English DT Note DE COMPLEX MULTIPLICATION; DISTRIBUTED ARITHMETIC; FFT BUTTERFLY; FLOATING-POINT MULTIPLICATION AB With a suitable treatment of the exponents in the input operands, a hardware implementation of the Mactaggart and Jack fixed-point complex multiplication algorithm can also calculate a floating-point product with no loss in accuracy from the greater dynamic range of the floating-point inputs. This floating-point technique can be extended to any sum of two products operation, such as encountered in matrix multiplication and vector cross-products. C1 MITRE CORP,BEDFORD,MA 01730. RP COSENTINO, RJ (reprint author), USAF,DIV ELECTR SYST,BEDFORD,MA 01731, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU IEEE COMPUTER SOC PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1264 SN 0018-9340 J9 IEEE T COMPUT JI IEEE Trans. Comput. PD OCT PY 1992 VL 41 IS 10 BP 1324 EP 1326 DI 10.1109/12.166608 PG 3 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic SC Computer Science; Engineering GA JX253 UT WOS:A1992JX25300010 ER PT J AU JAUCHEM, JR AF JAUCHEM, JR TI EPIDEMIOLOGIC STUDIES OF ELECTRIC AND MAGNETIC-FIELDS AND CANCER - A CASE-STUDY OF DISTORTIONS BY THE MEDIA SO JOURNAL OF CLINICAL EPIDEMIOLOGY LA English DT Article DE ELECTROMAGNETICS; ELECTRICAL WORKERS; NEUROBLASTOMA; CANCER ID VIDEO TERMINAL HAZARDS; ELECTROMAGNETIC-FIELDS; CHILDHOOD-CANCER; WIRING CONFIGURATIONS; PARENTAL OCCUPATION; HUMAN-REPRODUCTION; LEUKEMIA; EXPOSURE; DISEASE; SCIENTISTS AB Articles alleging hazards of electric or magnetic fields, based on epidemiologic studies, have appeared in the popular press. Some of these articles, which contain distortions of the scientific evidence, have been cited in the scientific and medical literature, thereby being given some degree of apparent legitimacy. In particular, articles appeared in 1989 in The New Yorker magazine, claiming a strong association between exposure to electric or magnetic fields and cancer. Assertions made in these articles (and a book dealing with essentially the same information) have been challenged by members of the scientific community. This paper will identify some additional misconceptions presented in two more recent articles from The New Yorker. Scientists and physicians should be aware of the deficiencies in these articles, and are encouraged to seek a more balanced view of the research performed in this area. RP JAUCHEM, JR (reprint author), OCCUPAT & ENVIRONM HLTH DIRECTORATE,DIV DIRECTED ENERGY,ARMSTRONG LAB,BROOKS AFB,TX 78235, USA. NR 64 TC 17 Z9 17 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0895-4356 J9 J CLIN EPIDEMIOL JI J. Clin. Epidemiol. PD OCT PY 1992 VL 45 IS 10 BP 1137 EP 1142 DI 10.1016/0895-4356(92)90154-F PG 6 WC Health Care Sciences & Services; Public, Environmental & Occupational Health SC Health Care Sciences & Services; Public, Environmental & Occupational Health GA JR932 UT WOS:A1992JR93200011 PM 1474410 ER PT J AU SMITH, JJ CUNNINGHAM, CJ MONTGOMERY, S AF SMITH, JJ CUNNINGHAM, CJ MONTGOMERY, S TI CERVICAL CANAL LEAKAGE AFTER INTERNAL BLEACHING PROCEDURES SO JOURNAL OF ENDODONTICS LA English DT Article ID RESORPTION; TEETH; INVITRO AB The effects that walking bleach procedures had on root canal filling leakage and the extent of dentinal penetration were studied. Forty teeth were divided into four groups: 1-GP, set sealer, no base; 2-GP, set sealer, 2-mm Cavit base; 3-GP, unset sealer, no base; and 4-GP, unset sealer, 2-mm Cavit base. All were bleached for 7 days, fresh bleach was added for another 7 days, then methylene blue dye was placed for 5 days. The extent of dye penetration apically along the root canal filling and through the dentinal tubules was evaluated. The results indicate that 2 mm of Cavit was sufficient to significantly reduce linear leakage and dentinal penetration. The Cavit should be placed to a level slightly coronal to the facial cementoenamel junction. Teeth with cemental defects demonstrated greater perpendicular dye penetration in the areas of the defects than those with intact cementum. The data from this study suggest the use of a base material over gutta-percha in clinical practice prior to internal walking bleach procedures. C1 WILFORD HALL USAF MED CTR,DEPT ENDODONT,LACKLAND AFB,TX 78236. RP SMITH, JJ (reprint author), UNIV TEXAS,HLTH SCI CTR,ADV EDUC ENDODONT PROGRAM,7703 FLOYD CURL DR,SAN ANTONIO,TX 78284, USA. NR 19 TC 13 Z9 13 U1 0 U2 0 PU WILLIAMS & WILKINS PI BALTIMORE PA 351 WEST CAMDEN ST, BALTIMORE, MD 21201-2436 SN 0099-2399 J9 J ENDODONT JI J. Endod. PD OCT PY 1992 VL 18 IS 10 BP 476 EP 481 DI 10.1016/S0099-2399(06)81346-4 PG 6 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA KC863 UT WOS:A1992KC86300002 PM 1289472 ER PT J AU SKIRA, CA AGNELLO, M AF SKIRA, CA AGNELLO, M TI CONTROL-SYSTEMS FOR THE NEXT CENTURY FIGHTER ENGINES SO JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME LA English DT Article AB The paper describes a conceptual control system design based on advanced technologies currently in the exploratory development phase, and, in some cases, emerging into the advanced development phase. It explores future propulsion control systems that focus on improvements in three areas: (1) significantly reducing control system weight; (2) enhancing engine performance (thrust, sfc, etc.); and (3) improving control system reliability and tolerance to high-threat environments (temperature, vibration, EMI, EMP, etc.). The factors that will influence the design and hardware configuration of future propulsion control systems are described. Design goals for future systems, based on the DOD/NASA IHPTET Initiative, and projections of emerging technology capability (and availability) form the basis for future propulsion control system design requirements and for estimating future hardware configurations. C1 USN,NAVAL AIR PROP CTR,TRENTON,NJ 08628. RP SKIRA, CA (reprint author), USAF,AERO PROP & POWER LAB,WRIGHT PATTERSON AFB,OH 45433, USA. NR 11 TC 2 Z9 2 U1 0 U2 0 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 0742-4795 J9 J ENG GAS TURB POWER JI J. Eng. Gas. Turbines Power-Trans. ASME PD OCT PY 1992 VL 114 IS 4 BP 749 EP 754 DI 10.1115/1.2906652 PG 6 WC Engineering, Mechanical SC Engineering GA JV890 UT WOS:A1992JV89000020 ER PT J AU MALL, S PORTNER, B AF MALL, S PORTNER, B TI CHARACTERIZATION OF FATIGUE BEHAVIOR IN CROSS-PLY LAMINATE OF SCS-6/TI-15-3 METAL MATRIX COMPOSITE AT ELEVATED-TEMPERATURE SO JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME LA English DT Article AB A study was conducted to investigate the fatigue behavior of a cross-ply, [0/90]2s, laminate of silicon fiber reinforced titanium matrix composite, SCS-6/Ti-15-3 at an elevated temperature of 427-degrees-C. Two sets of tests, at frequencies 0.02 and 2 Hz, were run at different stress levels. Fatigue damage initiation and growth patterns were dependent on the specific test conditions of frequency and stress level. Microscopic analysis of the fatigued specimens revealed matrix failure mechanisms ranging from ductile failure to cleavage fracture. The results of this study showed that temperature and frequency, as well as stress levels, are important design considerations for this composite in fatigue loading applications. RP MALL, S (reprint author), USAF,INST TECHNOL,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433, USA. NR 11 TC 13 Z9 13 U1 0 U2 0 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 0094-4289 J9 J ENG MATER-T ASME JI J. Eng. Mater. Technol.-Trans. ASME PD OCT PY 1992 VL 114 IS 4 BP 409 EP 415 DI 10.1115/1.2904193 PG 7 WC Engineering, Mechanical; Materials Science, Multidisciplinary SC Engineering; Materials Science GA JU981 UT WOS:A1992JU98100011 ER PT J AU CLERICI, M LANDAY, AL KESSLER, HA PHAIR, JP VENZON, DJ HENDRIX, CW LUCEY, DR SHEARER, GM AF CLERICI, M LANDAY, AL KESSLER, HA PHAIR, JP VENZON, DJ HENDRIX, CW LUCEY, DR SHEARER, GM TI RECONSTITUTION OF LONG-TERM T-HELPER CELL-FUNCTION AFTER ZIDOVUDINE THERAPY IN HUMAN IMMUNODEFICIENCY VIRUS-INFECTED PATIENTS SO JOURNAL OF INFECTIOUS DISEASES LA English DT Article ID HIV; MEN; 3'-AZIDO-3'-DEOXYTHYMIDINE; DISEASE; NUMBERS; TYPE-1; COUNTS; TRIAL; AIDS AB Peripheral blood mononuclear cells from 12 asymptomatic patients infected with human immunodeficiency virus (HIV) and 4 patients with AIDS were analyzed before and during therapy with zidovudine for T helper cell (Th) function. Th function improved by more than fourfold to one or more of three stimuli tested in 9 (75%) of 12 asymptomatic patients on zidovudine therapy and in 3 of 4 patients with AIDS. Only 6 (7.4%) of 80 untreated HIV-infected control patients showed spontaneous improvement in Th function (P < 10(-6)). Improved Th function was detected as early as 5 weeks into therapy in 6 patients and continued to be evident for > 1 year after start of therapy in 6 patients and for > 2 years in 2 patients. No correlation was observed between improved Th function and changes in CD4+ or CD8+ cell numbers or in levels of serum HIV p24 antigen or beta2-microglobulin. These results suggest inclusion of in vitro Th function as a useful marker in determining the efficacy of antiretroviral drug therapy of HIV-infected patients. C1 NCI,CLIN ONCOL PROGRAM,BETHESDA,MD 20892. RUSH PRESBYTERIAN ST LUKES MED CTR,DEPT IMMUNOL MICROBIOL,CHICAGO,IL 60612. RUSH PRESBYTERIAN ST LUKES MED CTR,DEPT MED,CHICAGO,IL 60612. NORTHWESTERN UNIV,SCH MED,DEPT MED,CHICAGO,IL 60611. WILFORD HALL USAF MED CTR,HIV UNIT,LACKLAND AFB,TX 78236. RP CLERICI, M (reprint author), NCI,EXPTL IMMUNOL BRANCH,BLDG 10,ROOM 4B17,BETHESDA,MD 20892, USA. RI Venzon, David/B-3078-2008; Hendrix, Craig/G-4182-2014 OI Hendrix, Craig/0000-0002-5696-8665 NR 24 TC 42 Z9 42 U1 0 U2 1 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0022-1899 J9 J INFECT DIS JI J. Infect. Dis. PD OCT PY 1992 VL 166 IS 4 BP 723 EP 730 PG 8 WC Immunology; Infectious Diseases; Microbiology SC Immunology; Infectious Diseases; Microbiology GA JP645 UT WOS:A1992JP64500005 PM 1388195 ER PT J AU PRASAD, SV ZABINSKI, JS DYHOUSE, VJ AF PRASAD, SV ZABINSKI, JS DYHOUSE, VJ TI PULSED-LASER DEPOSITION OF TUNGSTEN DISULFIDE FILMS ON ALUMINUM METAL-MATRIX COMPOSITE SUBSTRATES SO JOURNAL OF MATERIALS SCIENCE LETTERS LA English DT Article C1 UNIV DAYTON,RES INST,DAYTON,OH 45469. RP PRASAD, SV (reprint author), WRIGHT LAB,MAT DIRECTORATE,MLBT,WRIGHT PATTERSON AFB,OH 45433, USA. NR 6 TC 11 Z9 11 U1 0 U2 5 PU CHAPMAN HALL LTD PI LONDON PA 2-6 BOUNDARY ROW, LONDON, ENGLAND SE1 8HN SN 0261-8028 J9 J MATER SCI LETT JI J. Mater. Sci. Lett. PD OCT 1 PY 1992 VL 11 IS 19 BP 1282 EP 1284 DI 10.1007/BF00742179 PG 3 WC Materials Science, Multidisciplinary SC Materials Science GA JR571 UT WOS:A1992JR57100005 ER PT J AU FOSTER, JH AF FOSTER, JH TI HYPERBARIC-OXYGEN THERAPY - CONTRAINDICATIONS AND COMPLICATIONS SO JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY LA English DT Article ID AIR-EMBOLISM RP FOSTER, JH (reprint author), THIRD MED CTR,DEPT ORAL & MAXILLOFACIAL SURG,ELMENDORF AFB,AK 99506, USA. NR 23 TC 15 Z9 15 U1 0 U2 2 PU W B SAUNDERS CO PI PHILADELPHIA PA INDEPENDENCE SQUARE WEST CURTIS CENTER, STE 300, PHILADELPHIA, PA 19106-3399 SN 0278-2391 J9 J ORAL MAXIL SURG JI J. Oral Maxillofac. Surg. PD OCT PY 1992 VL 50 IS 10 BP 1081 EP 1086 DI 10.1016/0278-2391(92)90495-L PG 6 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA JR012 UT WOS:A1992JR01200013 PM 1356147 ER PT J AU SEDBERRY, D BURGESS, J SCHWARTZ, R AF SEDBERRY, D BURGESS, J SCHWARTZ, R TI TENSILE BOND STRENGTHS OF 3 CHEMICAL AND ONE ELECTROLYTIC ETCHING SYSTEMS FOR A BASE-METAL ALLOY SO JOURNAL OF PROSTHETIC DENTISTRY LA English DT Article ID RETAINERS; PROSTHESES; RETENTION AB This study compared the tensile bond strength of Rexillium III disks etched by three chemical etching systems and the electrochemical etching technique. Cast Rexillium III disks were etched by the following etching systems: electrochemical, Assure-Etch, Met-Etch gel, and Etch-It gel. Thermocycled samples were loaded to failure in tension on an Instron testing machine using a crosshead speed of 5 mm/minute. Samples etched electrochemically yielded significantly greater bond strengths than those etched chemically (p < 0.05). The rank of the groups was: Electrochemical > Assure-Etch = Met-Etch > Etch-It. Scanning electron micrograph evaluations of the etching patterns supported the bond strength determinations. C1 UNIV TEXAS,HLTH SCI CTR,SCH DENT,DEPT RESTORAT DENT,7703 FLOYD CURL DR,SAN ANTONIO,TX 78284. WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. UNIV TEXAS,HLTH SCI CTR,SCH DENT,DEPT GEN PRACTICE,SAN ANTONIO,TX 78284. NR 19 TC 2 Z9 2 U1 0 U2 0 PU MOSBY-YEAR BOOK INC PI ST LOUIS PA 11830 WESTLINE INDUSTRIAL DR, ST LOUIS, MO 63146-3318 SN 0022-3913 J9 J PROSTHET DENT JI J. Prosthet. Dent. PD OCT PY 1992 VL 68 IS 4 BP 606 EP 610 DI 10.1016/0022-3913(92)90373-I PG 5 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA JP877 UT WOS:A1992JP87700008 PM 1403936 ER PT J AU CORWIN, JO SAUNDERS, TR AF CORWIN, JO SAUNDERS, TR TI TEMPORARY SOFT LINERS - A MODIFIED CURING TECHNIQUE TO EXTEND LINER LONGEVITY SO JOURNAL OF PROSTHETIC DENTISTRY LA English DT Article C1 USAF,MED CTR,TRAVIS AFB,CA 94535. NR 5 TC 2 Z9 2 U1 0 U2 0 PU MOSBY-YEAR BOOK INC PI ST LOUIS PA 11830 WESTLINE INDUSTRIAL DR, ST LOUIS, MO 63146-3318 SN 0022-3913 J9 J PROSTHET DENT JI J. Prosthet. Dent. PD OCT PY 1992 VL 68 IS 4 BP 714 EP 715 DI 10.1016/0022-3913(92)90394-P PG 2 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA JP877 UT WOS:A1992JP87700029 PM 1403956 ER PT J AU CHANG, MJ CHOW, LC CHANG, WS MORGAN, M AF CHANG, MJ CHOW, LC CHANG, WS MORGAN, M TI TRANSIENT-BEHAVIOR OF HEAT PIPES WITH THERMAL-ENERGY STORAGE UNDER REVERSED-PULSED HEAT LOADS SO JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER LA English DT Article ID PHASE-CHANGE; CONDUCTION AB A novel design of a high-temperature axially grooved heat pipe (HP) which incorporates thermal energy storage (TES) to mitigate reversed-pulsed heat loads applied at the condenser is presented. Liquid sodium, which is used to remove the heat released by a power generator, circulates through an HP/TES cooling device, where the heat is rejected into space. The transient behavior of the HP/TES system is simulated using a three-dimensional alternating-direction-implicit (ADI) finite difference numerical model. A phase-change material (PCM) encapsulated in cylindrical containers is used for thermal energy storage. The transient response of three different HP/TES configurations was compared 1) a heat pipe with a large empty cylinder installed in the vapor core, 2) a heat pipe with a large PCM cylinder, and 3) a heat pipe with six small PCM cylinders. From the numerical results it was found that the PCM is very effective in mitigating the adverse effects of reversed-pulsed heat loads. C1 UNIV KENTUCKY, LEXINGTON, KY 40506 USA. AERO PROPULS & POWER LAB, WRIGHT PATTERSON AFB, OH 45433 USA. NR 9 TC 3 Z9 3 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091-4344 USA SN 0887-8722 J9 J THERMOPHYS HEAT TR JI J. Thermophys. Heat Transf. PD OCT-DEC PY 1992 VL 6 IS 4 BP 685 EP 692 DI 10.2514/3.11552 PG 8 WC Thermodynamics; Engineering, Mechanical SC Thermodynamics; Engineering GA JW316 UT WOS:A1992JW31600016 ER PT J AU PEARCE, JA QASIM, A MAXWELL, TT PARAMESAWARAN, S AF PEARCE, JA QASIM, A MAXWELL, TT PARAMESAWARAN, S TI A COMPUTATIONAL STUDY OF COHERENT WAKE STRUCTURES BEHIND 2-D BLUFF-BODIES SO JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS LA English DT Article; Proceedings Paper CT 8TH INTERNATIONAL CONF ON WIND ENGINEERING CY JUL 08-12, 1991 CL UNIV W ONTARIO, LONDON, CANADA SP INT ASSOC WIND ENGN HO UNIV W ONTARIO AB The periodic shedding of vortices from bluff body geometries was predicted with a 2-D finite-difference code. Two geometrical configurations were considered: a flat plate in uniform flow and a flat plate near a ground plane. Strouhal numbers and aerodynamic force coefficients were computed for all geometries considered and these results compare well with experimental results from the literature. The results indicate that the code is capable of predicting periodic vortex shedding for the geometries tested. C1 TEXAS TECH UNIV,DEPT MECH ENGN,LUBBOCK,TX 79409. RP PEARCE, JA (reprint author), USAF,WRIGHT PATTERSON AFB,OH 45433, USA. NR 7 TC 2 Z9 2 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-6105 J9 J WIND ENG IND AEROD JI J. Wind Eng. Ind. Aerodyn. PD OCT PY 1992 VL 44 IS 1-3 BP 2853 EP 2861 DI 10.1016/0167-6105(92)90080-T PG 9 WC Engineering, Civil; Mechanics SC Engineering; Mechanics GA KA516 UT WOS:A1992KA51600057 ER PT J AU WOMACK, DE AF WOMACK, DE TI 10 LEADERSHIP STEPS TO A SMOOTH FACILITY UPGRADE SO MILITARY MEDICINE LA English DT Article AB Leading a medical treatment facility (MTF) through the construction phases of a major upgrade, repair, or any sizable facility project is a challenging and complex endeavor. The Executive Staff can make the process easier on everyone and ensure the final product is in tune with the MTFs needs by taking positive leadership actions. This article describes the effective actions discovered during a 2.5-year-long total MTF upgrade of the 52 Tactical Fighter Wing (TFW) Clinic. These actions involved promulgating a broad systems view of the process, establishing philosophies and criteria, promoting team work, involving customers, and building consensus among the staff. RP WOMACK, DE (reprint author), HEADQUARTERS AIR MOBIL COMMAND,OFF SURGEON,SCOTT AFB,IL 62225, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ASSN MILITARY SURG US PI BETHESDA PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 SN 0026-4075 J9 MIL MED JI Milit. Med. PD OCT PY 1992 VL 157 IS 10 BP 511 EP 514 PG 4 WC Medicine, General & Internal SC General & Internal Medicine GA JT877 UT WOS:A1992JT87700006 PM 1454170 ER PT J AU NIEZGODA, JA AF NIEZGODA, JA TI ESOPHAGEAL-PERFORATION SO NEW YORK STATE JOURNAL OF MEDICINE LA English DT Article RP NIEZGODA, JA (reprint author), WILFORD HALL USAF MED CTR,DEPT EMERGENCY MED,LACKLAND AFB,TX 78236, USA. NR 5 TC 0 Z9 0 U1 0 U2 0 PU MED SOC STATE OF NY PI LAKE SUCCESS PA 420 LAKEVILLE RD P O BOX 5404, LAKE SUCCESS, NY 11042 SN 0028-7628 J9 NEW YORK STATE J MED PD OCT PY 1992 VL 92 IS 10 BP 419 EP 420 PG 2 WC Medicine, General & Internal SC General & Internal Medicine GA JT746 UT WOS:A1992JT74600003 PM 1436808 ER PT J AU SOLF, MP KLEIN, MW AF SOLF, MP KLEIN, MW TI PERTURBATIONAL APPROACH TO GLASSLIKE LOW-ENERGY EXCITATIONS OF INTERACTING TUNNELING DIPOLES AND QUADRUPOLES SO PHYSICAL REVIEW B LA English DT Article ID TEMPERATURE THERMAL-EXPANSION; ALKALI-HALIDES; MICROSCOPIC THEORY; HEAT; GLASSES; STATES; CONDUCTIVITY; HYDROXYL; DEFECTS; DENSITY AB Second- and third-order perturbation theory is used to calculate the low-energy spectrum of pairs of interacting tunneling dipoles (TD's) and tunneling quadrupoles (TQ's). The TD's or TQ's are assumed to be in an n-orientational potential well, determined by the local environment; hence assume n directions of orientation. For each of the orientations, the TD's or TQ's are allowed to tunnel only to their nearest-neighbor potential wells. We derive equations which relate the energy eigenvalues of a pair of interacting TD's or TQ's to the energies of the noninteracting tunneling Hamiltonian. We show that the pair has low-energy excitations provided the interaction potential is sufficiently greater than the tunneling matrix element. In particular we show that dilute concentrations of strongly interacting TQ's randomly distributed in a nondipolar crystalline host give low-energy excitations at low temperature T. Our calculation predicts that the very low T thermal properties of very small concentrations of eight-orientational TQ's (CN- in KBr) are different than those of TD's and other TQ's dissolved in alkali halides. C1 USAF,ROME LAB,BEDFORD,MA 01731. RP SOLF, MP (reprint author), WORCESTER POLYTECH INST,DEPT PHYS,WORCESTER,MA 01609, USA. NR 31 TC 4 Z9 4 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0163-1829 J9 PHYS REV B JI Phys. Rev. B PD OCT 1 PY 1992 VL 46 IS 13 BP 8147 EP 8153 DI 10.1103/PhysRevB.46.8147 PG 7 WC Physics, Condensed Matter SC Physics GA JT040 UT WOS:A1992JT04000022 ER PT J AU HARDY, R AF HARDY, R TI PHANTOM PAIN SO SCIENTIFIC AMERICAN LA English DT Letter RP HARDY, R (reprint author), USAF,WASHINGTON,DC 20330, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU SCI AMERICAN INC PI NEW YORK PA 415 MADISON AVE, NEW YORK, NY 10017 SN 0036-8733 J9 SCI AM JI Sci.Am. PD OCT PY 1992 VL 267 IS 4 BP 8 EP 8 PG 1 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA KC958 UT WOS:A1992KC95800004 ER PT J AU LOUI, MC LUGINBUHL, DR AF LOUI, MC LUGINBUHL, DR TI OPTIMAL ONLINE SIMULATIONS OF TREE MACHINES BY RANDOM-ACCESS MACHINES SO SIAM JOURNAL ON COMPUTING LA English DT Article DE KOLMOGOROV COMPLEXITY; ONLINE SIMULATION; RANDOM ACCESS MACHINE; REAL-TIME SIMULATION; TIME COMPLEXITY; TREE MACHINE ID ARRAYS AB This paper shows that every tree machine of time complexity t can be simulated on-line by a log-cost random access machine (RAM) of time complexity O((t log t)/log log t). Using information-theoretic techniques, it is shown that this simulation is optimal. It is also shown that every tree machine can be simulated by a unit-cost RAM in real time. C1 UNIV ILLINOIS,BECKMAN INST,URBANA,IL 61801. USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,WRIGHT PATTERSON AFB,OH 45433. RP LOUI, MC (reprint author), UNIV ILLINOIS,DEPT ELECT & COMP ENGN,COORDINATED SCI LAB,URBANA,IL 61801, USA. NR 13 TC 1 Z9 1 U1 0 U2 0 PU SIAM PUBLICATIONS PI PHILADELPHIA PA 3600 UNIV CITY SCIENCE CENTER, PHILADELPHIA, PA 19104-2688 SN 0097-5397 J9 SIAM J COMPUT JI SIAM J. Comput. PD OCT PY 1992 VL 21 IS 5 BP 959 EP 971 DI 10.1137/0221056 PG 13 WC Computer Science, Theory & Methods; Mathematics, Applied SC Computer Science; Mathematics GA JQ013 UT WOS:A1992JQ01300009 ER PT J AU BROWN, DC CURRY, TF HOYLE, SC SEADER, JH TOMICK, JJ DZIUBAN, ST AF BROWN, DC CURRY, TF HOYLE, SC SEADER, JH TOMICK, JJ DZIUBAN, ST TI OR VICE - FORECASTING AND CLASSIFICATION TECHNIQUES FOR NARCOTICS INTERDICTION SO SOCIO-ECONOMIC PLANNING SCIENCES LA English DT Article AB Counternarcotics interdiction efforts have traditionally relied on historically determined sorting criteria or "best guess" to find and classify suspected smuggling traffic. We present a more quantitative approach which incorporates customized database applications, graphics software and statistical modeling techniques to develop forecasting and classification models. Preliminary results show that statistical methodology can improve interdiction rates and reduce forecast error. The idea of predictive modeling is thus gaining support in the counterdrug community. The problem is divided into sea, air and land forecasting, only part of which will be addressed here. The maritime problem is solved using multiple regression in lieu of multivariate time series. This model predicts illegal boat counts by behavior and geographic region. We developed support software to present the forecasts and to automate the process of performing periodic model updates. During the period, the model was in use at Coast Guard Headquarters. Because of deterrence provided by improved intervention, the vessel seizure rate declined from 1 every 36 hours to 1 every 6 months. Due in part to the success of the sea model, the maritime movement of marijuana has ceased to be a major threat. The air problem is more complex, and required us to locally design data collection and display software. Intelligence analysts are using a customized relational database application with a map overlay to perform visual pattern recognition of smuggling routes. We are solving the modeling portion of the air problem using multiple regression for regional forecasts of traffic density, and discriminant analysis to develop tactical models that classify "good guys" and "bad guys". The air models are still under development, but we discuss some modeling considerations and preliminary results. The land problem is even more difficult, and data collection is still in progress. C1 R&D ASOCIATES,COLORADO SPRINGS,CO 80903. USAF ACAD,DEPT MATH SCI,COLORADO SPRINGS,CO 80840. USAF ACAD,DEPT CIVIL ENGN,COLORADO SPRINGS,CO 80840. RP BROWN, DC (reprint author), HO US STRATEG COMMAND,J53,OFFUTT AFB,NE 68113, USA. NR 7 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0038-0121 J9 SOCIO ECON PLAN SCI JI Socio-Econ. Plan. Sci. PD OCT PY 1992 VL 26 IS 4 BP 241 EP 255 DI 10.1016/0038-0121(92)90002-M PG 15 WC Economics; Management; Operations Research & Management Science SC Business & Economics; Operations Research & Management Science GA KA982 UT WOS:A1992KA98200002 ER PT J AU PANOS, RG BECK, DE MARESH, JE HARFORD, FJ AF PANOS, RG BECK, DE MARESH, JE HARFORD, FJ TI PRELIMINARY-RESULTS OF A PROSPECTIVE RANDOMIZED STUDY OF COOPER LIGAMENT VERSUS SHOULDICE HERNIORRHAPHY TECHNIQUE SO SURGERY GYNECOLOGY & OBSTETRICS LA English DT Article ID RECURRENT INGUINAL-HERNIA; FEMORAL HERNIOPLASTY; REPAIR AB Surgeons have developed many methods for the repair of direct inguinal hernias. The Cooper's ligament (McVay) repair and the Shouldice repair are widely used techniques. To determine the recurrence rates with differing techniques performed in a surgery residency program, we conducted a prospective randomized study for elective adult direct inguinal herniorrhaphies. Three hundred and eight elective direct inguinal herniorrhaphies in 269 adult patients were performed by residents in general surgery supervised by staff surgeons. Patients had yearly follow-up physical examinations (compliance rate of 87 percent) during an average follow-up period of 364 months. The recurrence rate was 8.8 percent for the McVay repair and 6.6 percent for the Shouldice repair (not significant). Bilateral inguinal hernias (repaired six weeks apart) had a recurrence rate of 12.8 percent, while the recurrence rate for unilateral repairs was 5.6 percent (p=<0.05). We found no significant difference in recurrence rates between the McVay and Shouldice herniorrhaphy techniques. However, there was an increase in hernia recurrence with either technique when bilateral direct inguinal herniorrhaphies were performed. RP PANOS, RG (reprint author), WILFORD HALL USAF MED CTR,DEPT GEN SURG,LACKLAND AFB,TX 78236, USA. RI Beck, David/A-5503-2011 NR 19 TC 63 Z9 65 U1 0 U2 0 PU FRANKLIN H MARTIN FOUNDATION PI CHICAGO PA 55 E ERIE ST, CHICAGO, IL 60611 SN 0039-6087 J9 SURG GYNECOL OBSTET JI Surg. Gynecol. Obstet. PD OCT PY 1992 VL 175 IS 4 BP 315 EP 319 PG 5 WC Obstetrics & Gynecology; Surgery SC Obstetrics & Gynecology; Surgery GA JT075 UT WOS:A1992JT07500005 PM 1411887 ER PT J AU YU, PW REYNOLDS, DC STUTZ, CE AF YU, PW REYNOLDS, DC STUTZ, CE TI SHARP-LINE PHOTOLUMINESCENCE OF GAAS GROWN BY LOW-TEMPERATURE MOLECULAR-BEAM EPITAXY SO APPLIED PHYSICS LETTERS LA English DT Article ID INTERACTION KINETICS; SURFACES; AS4 AB We report sharp-line photoluminescence spectra from GaAs layers grown by low-temperature molecular beam epitaxy. The photoluminescence consists of no-phonon line (A) at 1.467 eV and associated phonon sidebands of both lattice and localized vibrational modes. Photoluminescence features, layer growth condition, and heat treatment of the layer for the complex responsible for the photoluminescence spectrum are found to be consistent with the C3v symmetry of the complex. The spectra reveal five local phonons having stronger intensity compared to the lattice phonon. We propose that the complex is due to the nearest-neighbor V(Ga)-As(i) pair. C1 WRIGHT LAB,ELR,SOLID STATE ELECTR DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RP YU, PW (reprint author), WRIGHT STATE UNIV,RES CTR,DAYTON,OH 45435, USA. NR 16 TC 20 Z9 21 U1 0 U2 2 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD SEP 21 PY 1992 VL 61 IS 12 BP 1432 EP 1434 DI 10.1063/1.107561 PG 3 WC Physics, Applied SC Physics GA JN991 UT WOS:A1992JN99100022 ER PT J AU OWENS, ME PALAZOTTO, AN DENNIS, ST AF OWENS, ME PALAZOTTO, AN DENNIS, ST TI TRANSVERSE-SHEAR FLEXIBILITY IN LAMINATED PLATES UNDERGOING LARGE DEFLECTIONS SO COMPUTERS & STRUCTURES LA English DT Article AB A geometrically nonlinear laminated flat plate approach including transverse shear flexibility is presented. The plate response to normal pressure is compared to results obtained from approaches without shear flexibility and membrane stiffening that results from the von Karman strain displacement relations. Finite element results from several material property sets and laminate stacking arrangements are shown. The comparisons show that transverse shear deformation is less in the nonlinear solution than in the linear solution, as the membrane stiffening is a competing influence. Thicker plates are dominated by transverse shear deformation; thinner plates by membrane stiffening. C1 USAF ACAD,DEPT ENGN MECH,COLORADO SPRINGS,CO 80840. RP OWENS, ME (reprint author), USAF,INST TECHNOL,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433, USA. NR 14 TC 2 Z9 2 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0045-7949 J9 COMPUT STRUCT JI Comput. Struct. PD SEP 17 PY 1992 VL 45 IS 1 BP 69 EP 78 DI 10.1016/0045-7949(92)90346-2 PG 10 WC Computer Science, Interdisciplinary Applications; Engineering, Civil SC Computer Science; Engineering GA JV635 UT WOS:A1992JV63500008 ER PT J AU CODY, JT AF CODY, JT TI DETERMINATION OF METHAMPHETAMINE ENANTIOMER RATIOS IN URINE BY GAS-CHROMATOGRAPHY MASS-SPECTROMETRY SO JOURNAL OF CHROMATOGRAPHY-BIOMEDICAL APPLICATIONS LA English DT Review ID PERFORMANCE LIQUID-CHROMATOGRAPHY; AMPHETAMINE ANALOGS; DERIVATIZATION; METABOLISM; RESOLUTION; CHLORIDE; DEPRENYL; RADIOIMMUNOASSAY; IDENTIFICATION; STEREOISOMERS AB Analysis of the enantiomers of methamphetamine and its metabolite amphetamine is an extremely important process for a number of scientific disciplines. From studies of biological activity and mechanisms through determination of precursor molecules in a criminal investigation are all served by this analytical procedure. Utilization of gas chromatography-mass spectrometry with chiral derivatizing reagents is the most common chiral procedure and produces excellent results. Of the chiral derivatizing reagents available, the most widely used is trifluoroacetyl-l-prolyl chloride (TPC). Utilization of other derivatives require either synthesis by the analyst or have not shown themselves to provide as good a separation as did the TPC reagent. Use of chiral stationary phases yield good results but the disadvantages of temperature limits of these columns and the narrow use to which the columns can be put has limited their utilization. A significant utility of the chiral stationary phase is the ability to determine the purity of a chiral derivatizing reagent. Even if not used for routine analysis of enantiomers, utilization of this procedure can determine the purity of a reagent such as TPC and allow for accurate calculation of actual amounts of each enantiomer. This can be estimated using chiral derivatives on an achiral column, but it is limited to the extent that it is not able to differentiate enantiomeric impurity in the reagent versus the drug itself. Description of chromatographic procedures primarily focusing on gas chromatographic mass spectrometric techniques but also including liquid chromatographic techniques along with examples of extraction and derivatization procedures is the focus of this review. RP CODY, JT (reprint author), WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236, USA. NR 56 TC 42 Z9 42 U1 1 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-4347 J9 J CHROMATOGR-BIOMED JI J. Chromatogr.-Biomed. Appl. PD SEP 16 PY 1992 VL 580 IS 1-2 BP 77 EP 95 DI 10.1016/0378-4347(92)80529-Y PG 19 WC Chemistry, Analytical SC Chemistry GA JP568 UT WOS:A1992JP56800005 PM 1400833 ER PT J AU DAS, NC DUGGAN, PWC NATHAN, V AF DAS, NC DUGGAN, PWC NATHAN, V TI TRANSCONDUCTANCE TECHNIQUE FOR MEASUREMENT OF INTERFACE STATE DENSITY AND OXIDE CHARGE IN LDD-MOSFETS SO PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE LA English DT Article ID CHANNEL MOSFETS; MOS-TRANSISTORS; DEGRADATION; ELECTRON; TRAPS; GENERATION; DEVICES AB A simple technique is presented to determine the interface state and trapped oxide charge density created by hot carrier stress and gamma-ray irradiation in n-channel LDD-MOSFET's. The hot carrier stress is done at different biasing conditions. The gamma-ray irradiation is done to a total dose of 1 Mrad with two different gate biases during irradiation. The trapped carrier density is obtained from the change in transconductance for subthreshold gate voltage, while the interface state density is deduced from the change in maximum transconductance in the linear region. The interface state density measured by the charge pumping technique agrees well with the value obtained by the transconductance method. The increase in trapped carrier density is proportional to the threshold voltage (V(t)) shift of the device. The positive V(t) shift due to negative charge is greater than the negative shift of V(t) due to positive charge density of the same magnitude. RP DAS, NC (reprint author), USAF, VTRS, PHILLIPS LAB, KIRTLAND AFB, NM 87117 USA. NR 24 TC 6 Z9 6 U1 0 U2 1 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA POSTFACH 101161, 69451 WEINHEIM, GERMANY SN 1862-6300 EI 1862-6319 J9 PHYS STATUS SOLIDI A JI Phys. Status Solidi A-Appl. Mat. PD SEP 16 PY 1992 VL 133 IS 1 BP 167 EP 177 DI 10.1002/pssa.2211330118 PG 11 WC Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Materials Science; Physics GA JX659 UT WOS:A1992JX65900017 ER PT J AU JOGAI, B MANASREH, MO STUTZ, CE WHITNEY, RL KINELL, DK AF JOGAI, B MANASREH, MO STUTZ, CE WHITNEY, RL KINELL, DK TI INTERSUBBAND OPTICAL-ABSORPTION IN HEAVILY DOPED N-TYPE GAAS/AL0.3GA0.7AS MULTIPLE QUANTUM-WELLS SO PHYSICAL REVIEW B LA English DT Note ID INFRARED-ABSORPTION; SUPERLATTICES; TRANSITIONS AB Intersubband optical absorption between the ground and first excited states and the first and second excited states is reported for n-type doped GaAs/Al1-xGaxAs multiple quantum wells. This phenomenon is shown to be due to high doping, which causes more than one subband to be populated. Experimental results supported by theoretical calculations are presented. C1 WRIGHT LAB,ELRA,SOLID STATE ELECTR DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. LOCKHEED PALO ALTO RES LABS,PALO ALTO,CA 94304. RP JOGAI, B (reprint author), WRIGHT STATE UNIV,RES CTR,DAYTON,OH 45435, USA. NR 19 TC 13 Z9 13 U1 0 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0163-1829 J9 PHYS REV B JI Phys. Rev. B PD SEP 15 PY 1992 VL 46 IS 11 BP 7208 EP 7211 DI 10.1103/PhysRevB.46.7208 PG 4 WC Physics, Condensed Matter SC Physics GA JN826 UT WOS:A1992JN82600068 ER PT J AU LOOK, DC GRANT, JT SIZELOVE, JR AF LOOK, DC GRANT, JT SIZELOVE, JR TI SHIFTED X-RAY PHOTOELECTRON PEAK IN MOLECULAR-BEAM EPITAXIAL GAAS GROWN AT 200-DEGREES C SO APPLIED PHYSICS LETTERS LA English DT Article ID TEMPERATURES; SURFACE; LAYERS AB X-ray photoelectron spectroscopic results show that molecular beam epitaxial GaAs grown at 200-degrees-C has a reduced effective surface potential energy, about 0.5 eV, compared with the usual 0.7 eV. A Poisson analysis of the data, using parameters from Hall effect and absorption measurements, requires that the Fermi-level-controlling defect in this material must have a significantly lower activation energy than that of EL2, an unexpected result. C1 UNIV DAYTON,RES INST,DAYTON,OH 45469. WRIGHT LAB,WL ELRA,WRIGHT PATTERSON AFB,OH 45433. RP LOOK, DC (reprint author), WRIGHT STATE UNIV,RES CTR,DAYTON,OH 45435, USA. NR 10 TC 18 Z9 18 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD SEP 14 PY 1992 VL 61 IS 11 BP 1329 EP 1331 DI 10.1063/1.107582 PG 3 WC Physics, Applied SC Physics GA JM687 UT WOS:A1992JM68700026 ER PT J AU LANEY, RF HOFFMAN, RS AF LANEY, RF HOFFMAN, RS TI METHEMOGLOBINEMIA SECONDARY TO AUTOMOBILE EXHAUST FUMES SO AMERICAN JOURNAL OF EMERGENCY MEDICINE LA English DT Note DE METHEMOGLOBINEMIA; METHYLENE BLUE; CYANOSIS RP LANEY, RF (reprint author), USAF,MALCOLM GROW MED CTR,DEPT EMERGENCY MED,WASHINGTON,DC 20331, USA. NR 0 TC 4 Z9 4 U1 0 U2 0 PU W B SAUNDERS CO PI PHILADELPHIA PA INDEPENDENCE SQUARE WEST CURTIS CENTER, STE 300, PHILADELPHIA, PA 19106-3399 SN 0735-6757 J9 AM J EMERG MED JI Am. J. Emerg. Med. PD SEP PY 1992 VL 10 IS 5 BP 426 EP 428 DI 10.1016/0735-6757(92)90068-9 PG 3 WC Emergency Medicine SC Emergency Medicine GA JJ824 UT WOS:A1992JJ82400006 PM 1379433 ER PT J AU SATIN, AJ HANKINS, GDV YEOMANS, ER AF SATIN, AJ HANKINS, GDV YEOMANS, ER TI OXYTOCIN - THE MORE, THE BETTER - REPLY SO AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY LA English DT Letter C1 WILFORD HALL USAF MED CTR,DEPT OBSTET & GYNECOL,SAN ANTONIO,TX 78236. RP SATIN, AJ (reprint author), UNIV TEXAS,SW MED CTR,DEPT OBSTET & GYNECOL,DALLAS,TX 75235, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU MOSBY-YEAR BOOK INC PI ST LOUIS PA 11830 WESTLINE INDUSTRIAL DR, ST LOUIS, MO 63146-3318 SN 0002-9378 J9 AM J OBSTET GYNECOL JI Am. J. Obstet. Gynecol. PD SEP PY 1992 VL 167 IS 3 BP 856 EP 856 PG 1 WC Obstetrics & Gynecology SC Obstetrics & Gynecology GA JN790 UT WOS:A1992JN79000055 ER PT J AU PARSONS, DS LOCKETT, JS MARTIN, TW AF PARSONS, DS LOCKETT, JS MARTIN, TW TI PEDIATRIC ENDOSCOPY - ANESTHESIA AND SURGICAL TECHNIQUES SO AMERICAN JOURNAL OF OTOLARYNGOLOGY LA English DT Article RP PARSONS, DS (reprint author), WILFORD HALL USAF MED CTR,DEPT OTOLARYNGOL HEAD & NECK SURG,LACKLAND AFB,TX 78236, USA. NR 0 TC 6 Z9 6 U1 0 U2 0 PU W B SAUNDERS CO PI PHILADELPHIA PA INDEPENDENCE SQUARE WEST CURTIS CENTER, STE 300, PHILADELPHIA, PA 19106-3399 SN 0196-0709 J9 AM J OTOLARYNG JI Am. J. Otolaryngol. PD SEP-OCT PY 1992 VL 13 IS 5 BP 271 EP 283 DI 10.1016/0196-0709(92)90048-X PG 13 WC Otorhinolaryngology SC Otorhinolaryngology GA JN131 UT WOS:A1992JN13100004 PM 1285559 ER PT J AU NISH, WA SCHWIETZ, LA AF NISH, WA SCHWIETZ, LA TI UNDERDIAGNOSIS OF ASTHMA IN YOUNG-ADULTS PRESENTING FOR USAF BASIC TRAINING SO ANNALS OF ALLERGY LA English DT Article ID CHILDREN AB The underdiagnosis of asthma has not been well studied previously. The purpose of this study was to determine whether the diagnosis of asthma had been made previously in young adults who were subsequently shown to have asthma upon entering military service. Questionnaires were answered by all airmen basic referred to the Allergy-Immunology Clinic at Wilford Hall United States Air Force Medical Center over an 11-month period. There were 192 airmen basic referred to rule out asthma, primarily because of respiratory symptoms with exercise. These airmen were evaluated by history, physical examination, pulmonary function tests and, in 67%, by histamine or exercise challenge test also. In those diagnosed with asthma, the evaluating allergist then determined whether the diagnosis of asthma had been made previously considered or not considered. In airmen basic diagnosed by our clinic with asthma, the diagnosis had been made previously in 45%, considered in 25%, and not considered in 30%. Undiagnosed asthmatic airmen tended to have mild and primarily exercise-induced disease. We conclude that there is a high incidence of underdiagnosis of asthma in the population studied. Exercise-induced asthma accounted for most of the undiagnosed asthma. C1 WILFORD HALL USAF MED CTR,ALLERGY IMMUNOL SERV,LACKLAND AFB,TX 78236. NR 7 TC 49 Z9 49 U1 0 U2 0 PU AMER COLL ALLERGY ASTHMA IMMUNOLOGY PI ARLINGTON HTS PA 85 WEST ALGONQUIN RD SUITE 550, ARLINGTON HTS, IL 60005 SN 0003-4738 J9 ANN ALLERGY JI Ann. Allergy PD SEP PY 1992 VL 69 IS 3 BP 239 EP 242 PG 4 WC Allergy SC Allergy GA JP903 UT WOS:A1992JP90300015 PM 1524281 ER PT J AU KEMP, KW HUDLIN, C AF KEMP, KW HUDLIN, C TI CIVIL SUPREMACY OVER THE MILITARY - ITS NATURE AND LIMITS SO ARMED FORCES & SOCIETY LA English DT Article AB The principle of civil supremacy over the military is an important principle of American constitutional government. This article looks at the principle from another point of view. Here it is seen as a moral principle applicable to individual officers and soldiers. The principle states that (1) the ends of government policy are to be set by civilians; the military is limited to decisions about means; and (2) it is for the civilian leadership to decide where the line between ends and means (and hence between civilian and military responsibility) is to be drawn. The article defends this two-point principle and discusses its limits by appeal to general philosophical considerations and by reflection on historical examples. C1 USAF ACAD,COLORADO SPRINGS,CO 80840. RP KEMP, KW (reprint author), UNIV ST THOMAS,ST PAUL,MN, USA. NR 16 TC 21 Z9 21 U1 0 U2 0 PU TRANSACTION PERIOD CONSORTIUM PI NEW BRUNSWICK PA DEPT 3091 RUTGERS-THE STATE UNIV OF NJ, NEW BRUNSWICK, NJ 08903 SN 0095-327X J9 ARMED FORCES SOC JI Armed Forces Soc. PD FAL PY 1992 VL 19 IS 1 BP 7 EP 26 DI 10.1177/0095327X9201900101 PG 20 WC Political Science; Sociology SC Government & Law; Sociology GA JY568 UT WOS:A1992JY56800001 ER PT J AU ANDERSON, ST KLEIN, EC AF ANDERSON, ST KLEIN, EC TI SYSTEMIC LUPUS-ERYTHEMATOSUS IN A RHESUS MACAQUE SO ARTHRITIS AND RHEUMATISM LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. UNIV PITTSBURGH,PITTSBURGH,PA 15216. NR 0 TC 0 Z9 0 U1 0 U2 0 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 0004-3591 J9 ARTHRITIS RHEUM JI Arthritis Rheum. PD SEP PY 1992 VL 35 IS 9 SU S BP S355 EP S355 PG 1 WC Rheumatology SC Rheumatology GA JR158 UT WOS:A1992JR15801671 ER PT J AU ANDERSON, ST CHARLESWORTH, RW AF ANDERSON, ST CHARLESWORTH, RW TI A RETROSPECTIVE STUDY OF RHEUMATOLOGIC DISEASE AMONG AIR-FORCE RECRUITS SO ARTHRITIS AND RHEUMATISM LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. NR 0 TC 0 Z9 0 U1 0 U2 0 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 0004-3591 J9 ARTHRITIS RHEUM JI Arthritis Rheum. PD SEP PY 1992 VL 35 IS 9 SU S BP S293 EP S293 PG 1 WC Rheumatology SC Rheumatology GA JR158 UT WOS:A1992JR15801301 ER PT J AU MEEHAN, R SMITH, M REED, R SAMS, C AF MEEHAN, R SMITH, M REED, R SAMS, C TI POTENTIAL NEUROENDOCRINE MECHANISMS OF T-CELL DYSFUNCTION IN SLE PATIENTS SO ARTHRITIS AND RHEUMATISM LA English DT Meeting Abstract C1 UNIV COLORADO,HLTH SCI CTR,DENVER,CO 80262. USAF ACAD,COLORADO SPRINGS,CO 80840. NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. NR 0 TC 0 Z9 0 U1 0 U2 0 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 0004-3591 J9 ARTHRITIS RHEUM JI Arthritis Rheum. PD SEP PY 1992 VL 35 IS 9 SU S BP S288 EP S288 PG 1 WC Rheumatology SC Rheumatology GA JR158 UT WOS:A1992JR15801274 ER PT J AU SAKAI, LM REDDY, RK ANDERSON, ST AF SAKAI, LM REDDY, RK ANDERSON, ST TI BULLOUS LUPUS PRESENTING WITHOUT SYSTEMIC LUPUS-ERYTHEMATOSUS SO ARTHRITIS AND RHEUMATISM LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. NR 0 TC 0 Z9 0 U1 0 U2 0 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 0004-3591 J9 ARTHRITIS RHEUM JI Arthritis Rheum. PD SEP PY 1992 VL 35 IS 9 SU S BP S358 EP S358 PG 1 WC Rheumatology SC Rheumatology GA JR158 UT WOS:A1992JR15801690 ER PT J AU WINN, BE DESROSIER, KF DIXON, PS HENSLEY, R DERDAK, S HIGGS, JB AF WINN, BE DESROSIER, KF DIXON, PS HENSLEY, R DERDAK, S HIGGS, JB TI THE T-CELL ANTIGEN UM4D4(CDW60) IS PRESENT ON LUNG AND SKIN FIBROBLASTS AND FIBROBLAST-LIKE SYNOVIOCYTES SO ARTHRITIS AND RHEUMATISM LA English DT Meeting Abstract C1 UNIFORMED SERV UNIV HLTH SCI,BETHESDA,MD 20814. WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. NR 0 TC 0 Z9 0 U1 0 U2 0 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 0004-3591 J9 ARTHRITIS RHEUM JI Arthritis Rheum. PD SEP PY 1992 VL 35 IS 9 SU S BP S336 EP S336 PG 1 WC Rheumatology SC Rheumatology GA JR158 UT WOS:A1992JR15801558 ER PT J AU LYONS, TJ AF LYONS, TJ TI WOMEN IN THE FAST JET COCKPIT - AEROMEDICAL CONSIDERATIONS SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Review ID COLD-WATER EXPOSURE; DECOMPRESSION-SICKNESS; THERMAL ADJUSTMENT; MEN; PREGNANCY; FEMALE; ALTITUDE; SUSCEPTIBILITY; RESPONSES; MORTALITY AB Historically, women have demonstrated the capacity to be successful aviators. A review of the scientific literature between 1966 and 1991 pertinent to the role of women in military aviation revealed only minor differences of questionable operational significance between men and women. Women may be more susceptible to motion sickness, radiation, and decompression sickness than men, but may be more resistant to cold water immersion and altitude sickness. Although men are on the average, larger, stronger, and more aerobically fit than women, there are large variations within each sex and a large overlap between the sexes. Gender differences in work performance, G tolerance, heat stress, and injury rate disappear when allowance is made for size, strength, and fitness. Aeromedical selection criteria can, thus, address individual characteristics without reference to gender. The possibility of fetal damage in the early stages of pregnancy (before diagnosis) appears to be perhaps the biggest single medical concern in allowing women access to all aviation and space careers. RP LYONS, TJ (reprint author), ARMSTRONG LAB,OCCUPAT & ENVIRONM HLTH DIRECTORATE,BROOKS AFB,TX 78235, USA. NR 98 TC 11 Z9 11 U1 2 U2 4 PU AEROSPACE MEDICAL ASSOC PI ALEXANDRIA PA 320 S HENRY ST, ALEXANDRIA, VA 22314-3579 SN 0095-6562 J9 AVIAT SPACE ENVIR MD JI Aviat. Space Environ. Med. PD SEP PY 1992 VL 63 IS 9 BP 809 EP 818 PG 10 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA JK728 UT WOS:A1992JK72800009 PM 1524539 ER PT J AU PACHTER, R COOPER, TM NATARAJAN, LV OBERMEIER, KA CRANE, RL ADAMS, WW AF PACHTER, R COOPER, TM NATARAJAN, LV OBERMEIER, KA CRANE, RL ADAMS, WW TI MOLECULAR-DYNAMICS SIMULATION OF POLY(SPIROPYRAN-L-GLUTAMATE) - INFLUENCE OF CHROMOPHORE ISOMERIZATION SO BIOPOLYMERS LA English DT Article ID THEORETICAL CONFORMATIONAL-ANALYSIS; RANDOM-COILED CONFORMATION; NON-BONDED INTERACTIONS; NMR CHEMICAL-SHIFTS; PHOTORESPONSIVE POLYMERS; POLYPEPTIDE CONFORMATION; POLY(L-GLUTAMIC ACID); SIDE-CHAINS; PHOTOCHROMISM; PHOTOCONTROL AB A study of the influence of the spiropyran to merocyanine ring opening on a model of poly(spiropyran-L-glutamate) as implied by the experimental data (T. M. Cooper, K. A. Obermeier, L. V. Natarajan, and R. L. Crane (1992) Photochemistry and Photobiology, 55, 1-7) is presented. The individual chromophore is studied by the AM1 semiempirical approach, while molecular mechanics and dynamics calculations are employed in the analysis of the poly(spiropyran-L-glutamate) model. It is shown that the alpha-helical secondary structure is less conserved in the polypeptide substituted with the merocyanine form of the chromophore. In particular, larger side-chain flexibility, increased backbone hydrogen-bond lengths, as well as a larger helix bending are calculated. Furthermore, a random conformational minimization calculation finds the intrinsic behavior of the spiropyran molecular system as being more of a helix "maker" than it's merocyanine analogue. The interactions of the chromophore substituent with other side chains prove, in part, that an early event in the decay of the alpha-helical structure is the formation of hydrogen bonds between the carboxylic acid groups and the merocyanine oxygens. The results lend support to the experimental observation that the merocyanine group destabilizes the alpha-helical framework of the polypeptide, thus possibly allowing the entry of solvent molecules into the alpha-helical core, while spiropyran in its closed form shields it from the solvent. C1 SCI APPLICAT INT CORP,DAYTON,OH 45432. RP PACHTER, R (reprint author), WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433, USA. RI Adams, Wade/A-7305-2010 NR 61 TC 25 Z9 25 U1 1 U2 9 PU JOHN WILEY & SONS INC PI NEW YORK PA 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0006-3525 J9 BIOPOLYMERS JI Biopolymers PD SEP PY 1992 VL 32 IS 9 BP 1129 EP 1140 DI 10.1002/bip.360320902 PG 12 WC Biochemistry & Molecular Biology; Biophysics SC Biochemistry & Molecular Biology; Biophysics GA JJ432 UT WOS:A1992JJ43200001 ER EF