FN Thomson Reuters Web of Science™ VR 1.0 PT J AU SCHINDLER, WG WALKER, WA AF SCHINDLER, WG WALKER, WA TI TRANSILLUMINATION OF THE BEVELED ROOT SURFACE - AN AID TO PERIRADICULAR SURGERY SO JOURNAL OF ENDODONTICS LA English DT Article AB A technique utilizing fiberoptics to transilluminate a beveled root surface during periradicular surgery is described. This procedure when integrated with other standard endodontic surgical aids may help diagnose apical variations and vertical root fractures. RP SCHINDLER, WG (reprint author), WILFORD HALL USAF MED CTR,DEPT ENDODONT,DSN,2450 PEPPERRELL ST,LACKLAND AFB,TX 78236, USA. NR 13 TC 0 Z9 0 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 AUG PY 1994 VL 20 IS 8 BP 408 EP 410 DI 10.1016/S0099-2399(06)80301-8 PG 3 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA PB119 UT WOS:A1994PB11900010 PM 7996110 ER PT J AU VAZQUEZ, WD CHEU, HW AF VAZQUEZ, WD CHEU, HW TI HEMORRHAGIC COMPLICATIONS AND REPAIR OF CONGENITAL DIAPHRAGMATIC-HERNIAS - DOES TIMING OF THE REPAIR MAKE A DIFFERENCE - DATA FROM THE EXTRACORPOREAL LIFE-SUPPORT ORGANIZATION SO JOURNAL OF PEDIATRIC SURGERY LA English DT Article; Proceedings Paper CT 1993 Annual Meeting of the Section on Surgery of the American-Academy-of-Pediatrics CY OCT 29-31, 1993 CL WASHINGTON, DC SP AMER ACAD PEDIAT DE DIAPHRAGMATIC HERNIA; CONGENITAL; EXTRACORPOREAL MEMBRANE OXYGENATION ID MEMBRANE-OXYGENATION; SURVIVAL C1 WILFORD HALL USAF MED CTR,DEPT GEN SURG,PEDIAT SURG SERV,LACKLAND AFB,TX 78236. NR 9 TC 23 Z9 23 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 AUG PY 1994 VL 29 IS 8 BP 1002 EP 1006 DI 10.1016/0022-3468(94)90267-4 PG 5 WC Pediatrics; Surgery SC Pediatrics; Surgery GA PB516 UT WOS:A1994PB51600010 PM 7965495 ER PT J AU FITZPATRICK, JC CIOFFI, WG CHEU, HW PRUITT, BA AF FITZPATRICK, JC CIOFFI, WG CHEU, HW PRUITT, BA TI PREDICTING VENTILATION FAILURE IN CHILDREN WITH INHALATION INJURY SO JOURNAL OF PEDIATRIC SURGERY LA English DT Article; Proceedings Paper CT 1993 Annual Meeting of the Section on Surgery of the American-Academy-of-Pediatrics CY OCT 29-31, 1993 CL WASHINGTON, DC SP AMER ACAD PEDIAT DE VENTILATION FAILURE PREDICTOR; INHALATION INJURY; CHILDREN ID FREQUENCY OSCILLATORY VENTILATION; LUNG INJURY; PERCUSSIVE VENTILATION; MECHANICAL VENTILATION C1 WILFORD HALL USAF MED CTR,SAN ANTONIO,TX 78236. RP FITZPATRICK, JC (reprint author), USA,INST SURG RES,SGRD-USC-B,2322 HARNEY RD,FT SAM HOUSTON,TX 78234, USA. NR 13 TC 18 Z9 18 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 AUG PY 1994 VL 29 IS 8 BP 1122 EP 1126 DI 10.1016/0022-3468(94)90292-5 PG 5 WC Pediatrics; Surgery SC Pediatrics; Surgery GA PB516 UT WOS:A1994PB51600035 PM 7965518 ER PT J AU GRESHAM, KD MCHUGH, CM BUNNING, TJ CRANE, RL KLEI, HE SAMULSKI, ET AF GRESHAM, KD MCHUGH, CM BUNNING, TJ CRANE, RL KLEI, HE SAMULSKI, ET TI PHASE-BEHAVIOR OF CYCLIC SILOXANE-BASED LIQUID-CRYSTALLINE COMPOUNDS SO JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY LA English DT Article DE LIQUID CRYSTAL; CYCLIC SILOXANE; HYDROSILATION; CHOLESTEROL; BIPHENYL; PHASE BEHAVIOR ID GLASS-TRANSITION TEMPERATURES; SIDE GROUPS; POLYMERS; POLYSILOXANES AB A series of 24 cyclic siloxane-based liquid crystalline compounds was synthesized using conventional hydrosilation chemistry. Variables examined included ring size, spacer group length, and type and composition of pendant mesogenic groups. Both pentamethylhydro-and tetramethylhydrosiloxane rings were reacted with mesogens based on cholesterol, biphenyl, or equimolar mixtures of both. Four different length spacer groups containing terminal vinyl groups were used to attach the mesogens to the cyclic siloxane core. The thermotropic liquid crystalline phase behavior was studied using differential scanning calorimetry (DSC) and polarized optical microscopy (POM). A lengthening of spacer groups resulted in lower crystallization temperatures for the biphenyl-based compounds and lower glass transition temperatures for the cholesterol- and mixed mesogen-based compounds. The tetramethyl ring derivatives exhibited higher glass transition or crystallization temperatures than their pentamethyl counterparts. Biphenyl-based compounds exhibited low temperature crystalline phases while the cholesterol-based compounds exhibited low temperature glassy phases. (C) 1994 John Wiley & Sons, Inc. C1 WL,MLPJ,WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. UNIV N CAROLINA,CHAPEL HILL,NC 27515. UNIV CONNECTICUT,DEPT CHEM ENGN,STORRS,CT 06268. NR 43 TC 32 Z9 32 U1 1 U2 5 PU JOHN WILEY & SONS INC PI NEW YORK PA 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0887-624X J9 J POLYM SCI POL CHEM JI J. Polym. Sci. Pol. Chem. PD AUG PY 1994 VL 32 IS 11 BP 2039 EP 2047 DI 10.1002/pola.1994.080321105 PG 9 WC Polymer Science SC Polymer Science GA NX534 UT WOS:A1994NX53400005 ER PT J AU BANGE, AA PHOENIX, RD DUNCAN, RC AF BANGE, AA PHOENIX, RD DUNCAN, RC TI GOLD ALLOY CAST TO BASE-METAL REMOVABLE PARTIAL DENTURE FRAMEWORKS SO JOURNAL OF PROSTHETIC DENTISTRY LA English DT Article AB For many years, gold and base metal alloys have been used in the construction of cast removable partial dentures. Each alloy has desirable properties, yet neither is ideally suited for all portions of a framework. A method has been developed to fabricate prostheses by casting gold alloy against a base metal alloy. This procedure allows the practitioner to combine the favorable characteristics of both alloys within a single framework. Consequently, the practitioner may create frameworks that more effectively meet the biomechanical demands of the oral environment. C1 MACKOWN DENT CLIN,59TH MED WING DSP,2450 PEPERRELL ST,LACKLAND AFB,TX 78236. USAF,HAUGHTON,LA. EHRLING BERGQUIST HOSP,OFFUTT AFB,NE. NR 13 TC 0 Z9 0 U1 1 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 AUG PY 1994 VL 72 IS 2 BP 137 EP 140 DI 10.1016/0022-3913(94)90070-1 PG 4 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA NZ996 UT WOS:A1994NZ99600004 PM 7932258 ER PT J AU GREEN, JD BRACKMANN, DE NGUYEN, CD ARRIAGA, MA TELISCHI, FF DELACRUZ, A AF GREEN, JD BRACKMANN, DE NGUYEN, CD ARRIAGA, MA TELISCHI, FF DELACRUZ, A TI SURGICAL-MANAGEMENT OF PREVIOUSLY UNTREATED GLOMUS-JUGULARE TUMORS SO LARYNGOSCOPE LA English DT Article ID TEMPORAL BONE; INFRATEMPORAL APPROACH; FACIAL-NERVE; CHEMODECTOMAS; PRESERVATION; RADIATION; THERAPY; FOSSA; BASE AB The treatment of glomus jugulare tumors is controversial. Changes in the surgical treatment of glomus jugulare tumors at The House Ear Clinic have allowed complete resection in 85% of patients with minimal morbidity and no surgical mortalities. Our experience with 52 previously untreated patients with glomus jugulare tumors is reviewed. Two primary surgical techniques were used. The mastoid/neck approach was used in 9 patients with small tumors limited to the jugular bulb. The infratemporal fossa approach was used in the remaining 43 tumors. Lower cranial nerve preservation was possible in the majority of patients with normal preoperative function. Modifications in the management of the facial nerve during the infratemporal fossa approach have resulted in good recovery of facial function (House grade I/VI or II/VI) in 95% of patients. Most patients (85%) were able to fully resume all preoperative activities. Our results suggest that surgical management is the treatment of choice in younger patients with glomus jugulare tumors. C1 HOUSE EAR CLIN,LACKLAND AFB,TX. MAYO CLIN,DEPT OTORHINOLARYNGOL,JACKSONVILLE,FL 32224. HOUSE EAR RES INST,LACKLAND AFB,TX. WILFORD HALL USAF MED CTR,DEPT OTOLARYNGOL,LACKLAND AFB,TX 78236. UNIV MIAMI,DEPT OTOLARYNGOL,MIAMI,FL 33152. NR 15 TC 99 Z9 103 U1 0 U2 2 PU LARYNGOSCOPE CO PI ST LOUIS PA 10 S BROADWAY 14TH FLOOR, ST LOUIS, MO 63102-1741 SN 0023-852X J9 LARYNGOSCOPE JI Laryngoscope PD AUG PY 1994 VL 104 IS 8 BP 917 EP 921 PN 1 PG 5 WC Medicine, Research & Experimental; Otorhinolaryngology SC Research & Experimental Medicine; Otorhinolaryngology GA PB529 UT WOS:A1994PB52900001 PM 8052073 ER PT J AU PUFFER, RL AF PUFFER, RL TI 7 YEARS AMONG PRISONERS OF WAR - CHRISTIANSEN,C SO LIBRARY JOURNAL LA English DT Book Review RP PUFFER, RL (reprint author), USAF,HIST PROGRAM,EDWARDS AFB,CA, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU BOWKER MAGAZINE GROUP CAHNERS MAGAZINE DIVISION PI NEW YORK PA 249 W 17TH ST, NEW YORK, NY 10011 SN 0363-0277 J9 LIBR J JI Libr. J. PD AUG PY 1994 VL 119 IS 13 BP 100 EP 100 PG 1 WC Information Science & Library Science SC Information Science & Library Science GA PB525 UT WOS:A1994PB52500190 ER PT J AU CARLSON, JL AF CARLSON, JL TI CREME-DE-CARMEL - THE STORY OF THE LIVELY PERSONALITIES WHO SHAPED CALIFORNIA FABLED COASTAL KINGDOM - MAREK,D SO LIBRARY JOURNAL LA English DT Book Review RP CARLSON, JL (reprint author), VANDENBERG AFB LIB,VANDENBERG AFB,CA 93437, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU BOWKER MAGAZINE GROUP CAHNERS MAGAZINE DIVISION PI NEW YORK PA 249 W 17TH ST, NEW YORK, NY 10011 SN 0363-0277 J9 LIBR J JI Libr. J. PD AUG PY 1994 VL 119 IS 13 BP 111 EP 111 PG 1 WC Information Science & Library Science SC Information Science & Library Science GA PB525 UT WOS:A1994PB52500231 ER PT J AU MCNAMEE, SG BUNNING, TJ MCHUGH, CM OBER, CK ADAMS, WW AF MCNAMEE, SG BUNNING, TJ MCHUGH, CM OBER, CK ADAMS, WW TI PROBING THE ELECTRIC-FIELD ALIGNMENT OF A THERMOTROPIC LIQUID-CRYSTALLINE POLYMER BY SYNCHROTRON-RADIATION SO LIQUID CRYSTALS LA English DT Article ID X-RAY-DIFFRACTION; MAGNETIC-FIELD; KINETICS; DYNAMICS AB The orientation of a cyclic side-chain thermotropic liquid crystalline material in an AC field was monitored in real-time using synchrotron radiation. Monitoring the realignment processes in the millisecond-to-minute time-scale was made possible by the high X-ray flux. Orientation parameters and response times were calculated asa function of temperature and frequency. Response times decreased exponentially with temperature due to a decrease in the viscosity. Very little dependence of the response time on frequency was observed, except at low temperatures, where a switch from homeotropic to planar alignment of the molecules was detected. This reorientation of the director was studied in real-time and the resulting complex diffraction patterns were due to equal but opposite director rotations from an alignment parallel to the applied electric field to an alignment perpendicular to the applied electric field. The orientation parameters were highest in the central portion of the mesophase temperature range. At temperatures near clearing, the net degree of orientation diminished. Cooling through the mesophase with an applied electric field resulted in much larger orientation parameters than could be obtained by aligning at a fixed temperature in the mesophase. C1 WRIGHT LAB,MAT DIRECTORATE,WL,MLPJ,WRIGHT PATTERSON AFB,OH 45433. CORNELL UNIV,DEPT MAT SCI & ENGN,ITHACA,NY 14853. RI Adams, Wade/A-7305-2010 NR 18 TC 17 Z9 17 U1 0 U2 1 PU TAYLOR & FRANCIS LTD PI LONDON PA ONE GUNDPOWDER SQUARE, LONDON, ENGLAND EC4A 3DE SN 0267-8292 J9 LIQ CRYST JI Liq. Cryst. PD AUG PY 1994 VL 17 IS 2 BP 179 EP 190 DI 10.1080/02678299408036558 PG 12 WC Chemistry, Multidisciplinary; Crystallography; Materials Science, Multidisciplinary SC Chemistry; Crystallography; Materials Science GA PA044 UT WOS:A1994PA04400003 ER PT J AU RAETH, PG GUSTAFSON, SC LITTLE, GR AF RAETH, PG GUSTAFSON, SC LITTLE, GR TI A BASIS FUNCTION-APPROACH TO PROGRAMMING CONCURRENT VOTING SYSTEMS TO PERFORM SELECTION TASKS SO MATHEMATICAL AND COMPUTER MODELLING LA English DT Article DE NEURAL NETWORKS; PARALLEL PROCESSING; CONCURRENT PROCESSING; VOTING SYSTEMS; CLASSIFICATION; BASIS FUNCTIONS ID NEURAL NETWORK AB Voting is one method available to knowledge-based systems for dealing with selection uncertainty. Evidence on the validity of one or more selections is collected. Each piece of evidence then casts a ''vote'' for the defended selection. In this way, evidence in favor of various alternatives is accumulated. The numeric value of each vote depends on the applicability of the associated evidence. Thus, applicability controls the contribution each piece of evidence makes toward any specific selection. One difficult problem in any voting mechanism is finding a way to specify the numeric value of each vote in a given circumstance. One method of developing this situationally-dependent specification is the use of Gaussian radial basis functions by a network of processors operating concurrently. The technique discussed in this paper takes neural network technology as an inspiration for the implementation of such an information processing scheme. It provides a numerical method for solving a problem faced by symbolic knowledge-based systems, that of examining and deciding between alternatives using a large body of evidence. Due to the concurrent nature of the implementation, there is a great potential for real-time execution. The programs for the network of processors are developed in O(N) or O(N2) time, depending on how the programs are developed. (N refers to the amount of evidence.) The network itself, once programmed, executes in O(1) time, if sufficient numbers of processors are employed. The number, of processors modelled by a fully programmed network is O(N). This bound on execution and programming resources is predictable during problem specification. These advantages favor logistical supportability, a necessary system implementation requirement if advanced computing methods are to be incorporated into fielded equipment. This paper offers both theory and implementation. An illustrative example is given as well as references to related papers. C1 UNIV DAYTON,RES INST,KETTERING LAB,DAYTON,OH 45469. RP RAETH, PG (reprint author), WRIGHT LAB,FIPA,2210 8TH ST,BLDG 146,SUITE 1,WRIGHT PATTERSON AFB,OH 45433, USA. NR 28 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 0895-7177 J9 MATH COMPUT MODEL JI Math. Comput. Model. PD AUG PY 1994 VL 20 IS 3 BP 73 EP 88 DI 10.1016/0895-7177(94)90032-9 PG 16 WC Computer Science, Interdisciplinary Applications; Computer Science, Software Engineering; Mathematics, Applied SC Computer Science; Mathematics GA PC749 UT WOS:A1994PC74900005 ER PT J AU SEMIATIN, SL SOPER, JC SHIVPURI, R AF SEMIATIN, SL SOPER, JC SHIVPURI, R TI A SIMPLE-MODEL FOR CONVENTIONAL HOT-ROLLING OF SHEET MATERIALS SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Article ID METALLURGICAL STATE; HEAT-TRANSFER; STEEL STRIP; DEFORMATION; FLOW AB Temperature transients during the bare hot rolling of sheet materials have been modeled using a simple one-dimensional, finite-difference heat-transfer approach. The model addresses heat losses associated with (1) the transfer of the sheet from the reheat furnace to the rolling mill and (2) the actual rolling operation itself. The former step comprises heat losses primarily through radiation and the latter through chilling of the hot workpiece in contact with the cooler rolls. The principal output of the model is the temperature field through the thickness of the sheet. The usefulness of the model was gaged through an investigation of the effect of temperature transients on the hot-rolling behavior of Ti-6Al-4V sheet. Specifically, the effect of temperature transients on rolling pressure and development of nonuniform microstructure was determined. Over the entire temperature range studied, the rolling pressure for Ti-6Al-4V was found to be dependent only on the average temperature of the workpiece within the roll gap, irrespective of metastable phase transformations that may have accompanied the deformation process itself. The one-dimensional heat-transfer model was also successful in explaining the occurrence of the nonuniform microstructures produced during rolling at nominal (furnace) temperatures near the beta transus. C1 WRIGHT STATE UNIV, DAYTON, OH 45435 USA. OHIO STATE UNIV, DEPT IND & SYST ENGN, COLUMBUS, OH 43210 USA. RP WRIGHT LAB, MLLN, MAT DIRECTORATE, DIV MET & CERAM, WRIGHT PATTERSON AFB, OH 45433 USA. RI SEMIATIN, SHELDON/E-7264-2017 NR 35 TC 12 Z9 12 U1 0 U2 5 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1073-5623 EI 1543-1940 J9 METALL MATER TRANS A JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci. PD AUG PY 1994 VL 25 IS 8 BP 1681 EP 1692 DI 10.1007/BF02668533 PG 12 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA NY717 UT WOS:A1994NY71700012 ER PT J AU AMATO, AA BAROHN, RJ JACKSON, CE PAPPERT, EJ SAHENK, Z KISSEL, JT AF AMATO, AA BAROHN, RJ JACKSON, CE PAPPERT, EJ SAHENK, Z KISSEL, JT TI INCLUSION-BODY MYOSITIS - TREATMENT WITH INTRAVENOUS IMMUNOGLOBULIN SO NEUROLOGY LA English DT Note ID DERMATOMYOSITIS; DYSTROPHY; TRIAL AB We report the results of nine patients with inclusion body myositis treated with intravenous immunoglobulin in an open-label uncontrolled study. None of our patients improved on objective manual muscle testing or functional disability scores. One patient developed mild neutropenia, complicating the intravenous immunoglobulin treatment. Our results do not exclude the possibility that intravenous immunoglobulin could be beneficial in some patients by slowing the rate of deterioration or perhaps stabilizing the disease. However, given the lack of objective improvement and high cast of treatment, we would not recommend intravenous immunoglobulin in the treatment of inclusion body myositis unless a blinded, controlled trial demonstrates clear benefit. C1 UNIV TEXAS,SW MED CTR,DEPT NEUROL,DALLAS,TX 75235. UNIV TEXAS,HLTH SCI CTR,DEPT MED,SAN ANTONIO,TX 78284. OHIO STATE UNIV,SCH MED,DEPT NEUROL,COLUMBUS,OH 43210. RP AMATO, AA (reprint author), WILFORD HALL USAF MED CTR,PSMN,DEPT NEUROL,2200 BERGQUIST DR,STE 1,LACKLAND AFB,TX 78236, USA. NR 10 TC 65 Z9 66 U1 0 U2 0 PU LITTLE BROWN CO PI BOSTON PA 34 BEACON STREET, BOSTON, MA 02108-1493 SN 0028-3878 J9 NEUROLOGY JI Neurology PD AUG PY 1994 VL 44 IS 8 BP 1516 EP 1518 PG 3 WC Clinical Neurology SC Neurosciences & Neurology GA PB152 UT WOS:A1994PB15200032 PM 8058161 ER PT J AU SHIKORA, SA ABRAHAMIAN, GA GAINES, CE AF SHIKORA, SA ABRAHAMIAN, GA GAINES, CE TI CAN A BARIATRIC SURGERY PROGRAM SUCCEED WITHOUT CLOSE PATIENT PROXIMITY - THE EXPERIENCE IN A MILITARY MEDICAL-CENTER SO OBESITY SURGERY LA English DT Article; Proceedings Paper CT 11th Annual Meeting of the American-Society-for-Bariatric-Surgery CY JUN 10, 1994 CL MINNEAPOLIS, MN SP AMER BARIATR SURG DE BARIATRIC SURGERY; MORBID OBESITY; WEIGHT LOSS; MILITARY MEDICINE AB Many centers advocate close patient follow-up and a multidisciplinary approach as necessary ingredients for the success of a bariatric surgery program. The military medical environment is not suitable for these conditions. Many patients are referred from great distances to the large regional medical centers, thereby preventing such close follow-up and the ability to create active support groups. A review of the 4-year experience with bariatric surgery at a major military medical center was conducted to determine if the program could be successful, considering that 60% of its patients came from out of state. Hospital records of all 92 patients and the bariatric registry were reviewed. A comprehensive survey to update weight data and assess patient satisfaction was sent to the first 72 patients to undergo surgery. There were no deaths and a perioperative complication rate of 18%. By 1 year after surgery, 67% of patients lost greater than 50% of their excess weight (mean = 56.6%). Sixty-eight percent of patients responded to the survey; 87% felt they were better off and satisfied with their quality of life since surgery, and 75% reported improved energy levels. If given a chance to rethink their decision, 86% of responders would choose surgery again. A total of 91% were satisfied with their follow-up. Patient proximity to the medical center did not influence weight loss or patient satisfaction. These results suggest that a bariatric surgery program can succeed in a medical environment such as the military where patients are likely to live at great distances from the hospital. RP SHIKORA, SA (reprint author), WILFORD HALL USAF MED CTR,DEPT SURG,PSSG,LACKLAND AFB,TX 78236, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU RAPID SCIENCE PUBLISHERS PI LONDON PA 2-6 BOUNDARY ROW, LONDON, ENGLAND SE1 8NH SN 0960-8923 J9 OBES SURG JI Obes. Surg. PD AUG PY 1994 VL 4 IS 3 BP 238 EP 243 DI 10.1381/096089294765558449 PG 6 WC Surgery SC Surgery GA PE304 UT WOS:A1994PE30400006 ER PT J AU Garscadden, A Ganguly, BN Haaland, PD Williams, J AF Garscadden, A. Ganguly, B. N. Haaland, P. D. Williams, J. TI Overview of growth and behaviour of clusters and particles in plasmas SO PLASMA SOURCES SCIENCE & TECHNOLOGY LA English DT Article AB A review is presented of the phenomena associated with particles in low pressure plasmas. Dust particles which are typically micrometers in diameter have been observed by laser light scattering in various low-pressure, radiofrequency-excited plasmas. Experiments have been designed so that the origin of the dust material is unambiguous and, to some extent, quantitative. The processes involved in the appearance of the mesoscopic dust particles are outlined and compared with our experimental observations. The source material and its required generation rate, nucleation, charging, growth mechanisms, growth rates, and saturation mechanisms are discussed. The mutual influences of dust and plasma, particularly the role of geometric and circuit boundary conditions in laboratory plasmas, are described. C1 [Garscadden, A.; Ganguly, B. N.; Haaland, P. D.; Williams, J.] USAF, Wright Lab, Wright Patterson AFB, OH 45433 USA. RP Garscadden, A (reprint author), USAF, Wright Lab, Wright Patterson AFB, OH 45433 USA. NR 37 TC 91 Z9 92 U1 0 U2 4 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 0963-0252 J9 PLASMA SOURCES SCI T JI Plasma Sources Sci. Technol. PD AUG PY 1994 VL 3 IS 3 BP 239 EP 245 DI 10.1088/0963-0252/3/3/001 PG 7 WC Physics, Fluids & Plasmas SC Physics GA V10QD UT WOS:000207477600001 ER PT J AU Haaland, PD Garscadden, A Ganguly, B Ibrani, S Williams, J AF Haaland, P. D. Garscadden, A. Ganguly, B. Ibrani, S. Williams, J. TI On form and flow in dusty plasmas SO PLASMA SOURCES SCIENCE & TECHNOLOGY LA English DT Article AB Microscopic cauliflowers have been observed in a suprisingly diverse range of dusty plasmas. Their microstructure, as analysed by electron microscopy, is consistent with growth by ballistic deposition rather than diffusion limited aggregation. The morphology of the grains supports the inference from dust growth kinetics that they form by accretion of positive ions rather than neutral radicals. The dense, amorphous structure is capped by a fractal surface whose texture is concisely described by a recursion based on the modified midpoint method. The surface texture may be reconstructed by ion bombardment, providing a quantitative link between growth kinetics and roughness through a Mullins-Sekerka stability analysis of Laplacian growth. C1 [Haaland, P. D.; Garscadden, A.; Ganguly, B.] USAF, Wright Lab, Wright Patterson AFB, OH 45433 USA. [Ibrani, S.] Analatom Inc, Sunnyvale, CA 94089 USA. [Haaland, P. D.; Williams, J.] Lawrence Associates Inc, Dayton, OH 45431 USA. RP Haaland, PD (reprint author), USAF, Wright Lab, Wright Patterson AFB, OH 45433 USA. NR 21 TC 26 Z9 26 U1 0 U2 5 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 0963-0252 J9 PLASMA SOURCES SCI T JI Plasma Sources Sci. Technol. PD AUG PY 1994 VL 3 IS 3 BP 381 EP 387 DI 10.1088/0963-0252/3/3/022 PG 7 WC Physics, Fluids & Plasmas SC Physics GA V10QD UT WOS:000207477600022 ER PT J AU FLETCHER, R COOK, J AF FLETCHER, R COOK, J TI MEASUREMENT OF SURFACE IMPEDANCE VERSUS TEMPERATURE USING A GENERALIZED SAPPHIRE RESONATOR TECHNIQUE SO REVIEW OF SCIENTIFIC INSTRUMENTS LA English DT Article ID HIGH-TC SUPERCONDUCTORS; THIN-FILMS; DIELECTRIC RESONATOR; MICROWAVE; RESISTANCE AB An automated measurement technique to measure the surface impedance, Z(s)=R(s)+iX(s),, as a function of temperature is presented. Based on the dielectric resonator measurement technique, a general purpose approach is developed which does not neglect dielectric loss and can accommodate a variety of sample sizes and measurement frequencies. By employing a parallel-plate geometry which has a known electromagnetic solution, both the surface impedance of the sample and the induced surface current can be related quantitatively to the measured and, the resonant frequency, and the applied power. Although the measurement sensitivity depends on the system design and choice of materials, comprehensive equations are presented which serve as a useful tool for designing the system and simulating the measurement. Using a sample size of 1X1 cm(2) and a measurement frequency of 19.6 GHz, a measurement uncertainty of 420 mu Omega for R(s) and 4800 mu Omega for Delta X(s) is demonstrated. For superconducting samples, this translates to a measurement uncertainty of 105 mu Omega for R(s) and 2400 mu Omega for Delta X(s) at 10 GHz, which is sufficient for routine measurements. Methods to improve the resolution and uncertainty of this measurement technique are discussed, and a general scheme to fully automate this measurement via computer is demonstrated. C1 WRIGHT LAB,SOLID STATE ELECTR DIRECTORATE,ELMT,WRIGHT PATTERSON AFB,OH 45433. RP FLETCHER, R (reprint author), WRIGHT LAB,MAT DIRECTORATE,MLPO,WRIGHT PATTERSON AFB,OH 45433, USA. NR 29 TC 10 Z9 10 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0034-6748 J9 REV SCI INSTRUM JI Rev. Sci. Instrum. PD AUG PY 1994 VL 65 IS 8 BP 2658 EP 2666 DI 10.1063/1.1144666 PG 9 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA PC319 UT WOS:A1994PC31900037 ER PT J AU COMITALO, JB LYNCH, D AF COMITALO, JB LYNCH, D TI LAPAROSCOPIC CHOLECYSTECTOMY IN THE PREGNANT PATIENT SO SURGICAL LAPAROSCOPY & ENDOSCOPY LA English DT Article DE LAPAROSCOPY; CHOLECYSTECTOMY; PREGNANCY; CHOLECYSTITIS; CHOLELITHIASIS ID MANAGEMENT; CHOLECYSTITIS AB Laparoscopic cholecystectomy has rapidly replaced open cholecystectomy as the preferred surgical treatment of symptomatic choletithiasis. Although the indications are similar for both procedures, some surgeons believe that pregnancy is a contraindication for the laparoscopic approach. Several recent reports in the literature have shown that laparoscopic cholecystectomy can be performed safely in the pregnant patient. A review of all patients who underwent laparoscopic cholecystectomy from January 1991 to January 1993 at Scott Air Force Base (AFB) and Edwards AFB was performed. Of 248 patients reviewed, four procedures were performed in the gravid patient. All patients were operated on during the second trimester of pregnancy. Laparoscopic cholecystectomy was successful in all four. Cholangiogram was performed in two patients. No postoperative morbidity was encountered (maternal or fetal). Twenty-one cases of laparoscopic cholecystectomy in the pregnant patient, with no fetal or maternal morbidity or mortality, have been reported in the literature to date. We conclude that in selected cases, laparoscopic cholecystectomy can be performed safely during pregnancy. C1 USAF HOSP,EDWARDS AFB,CA. RP COMITALO, JB (reprint author), USAF,MED CTR,DEPT SURG,SCOTT SGHS,310 LOSEY DR,SCOTT AFB,IL 62225, USA. NR 20 TC 35 Z9 36 U1 0 U2 0 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 1051-7200 J9 SURG LAPAROSC ENDOSC JI Surg. Laparoscopy Endosc. PD AUG PY 1994 VL 4 IS 4 BP 268 EP 271 PG 4 WC Surgery SC Surgery GA PA151 UT WOS:A1994PA15100005 PM 7952436 ER PT J AU WELSH, BM KOEFFLER, SC AF WELSH, BM KOEFFLER, SC TI REMOTE-SENSING OF ATMOSPHERIC-TURBULENCE AND TRANSVERSE WINDS FROM WAVE-FRONT SLOPE MEASUREMENTS FROM CROSSED OPTICAL PATHS SO APPLIED OPTICS LA English DT Article AB In the theory of atmospheric turbulence, the strength of the spatial variations of the index of refraction n is proportional to a parameter known as the atmospheric-structure constant. The atmospheric-structure constant is denoted C(n)2(z) and is a function of position along the optical path z. The characteristics of the temporal variations of the index of refraction are related to both C(n)2(z) and to the transverse wind velocity V(z). Current optical techniques for remotely sensing C(n)2(z) and V(z) rely primarily on the spatial or temporal cross-correlation properties of the intensity of the optical field. In the remote-sensing technique proposed here, we exploit the correlation properties of the wave-front slope measured from two point sources to obtain profiles of C(n)2(z) and V(z). The two sources are arranged to give crossed optical paths. The geometry of the crossed paths and the characteristics of the wave-front slope sensor determine the achievable resolution. The signal-to-noise ratio calculations indicate the need for multiple measurements to obtain useful estimates of the desired quantities. RP WELSH, BM (reprint author), USAF, INST TECHNOL, DEPT ELECT & COMP ENGN, ENG, 2950 P ST, WRIGHT PATTERSON AFB, OH 45433 USA. NR 13 TC 5 Z9 5 U1 0 U2 2 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 JUL 20 PY 1994 VL 33 IS 21 BP 4880 EP + PG 0 WC Optics SC Optics GA PB632 UT WOS:A1994PB63200046 PM 20935864 ER PT J AU GIBSON, FW AF GIBSON, FW TI VARIABILITY IN ATMOSPHERIC LIGHT-SCATTERING PROPERTIES WITH ALTITUDE SO APPLIED OPTICS LA English DT Article DE AEROSOL PARTICLES; DISSYMMETRY; TURBIDITY; PHASE FUNCTION ID LIDAR TECHNIQUE; AEROSOL AB The altitudinal variability in angular scattering properties of the troposphere and stratosphere was measured with a balloonborne polar nephelometer. An analysis of interdependent experimental parameters provides information on the scattering phase function and inferred size distribution of aerosol particles as a function of altitude. These aerosol characteristics are extractable from the scattering dissymmetry index and its relationship to spectral dispersion in turbidity and the aerosol phase function. The problem of the correlation between backscatter and extinction is addressed from the perspectives of in situ observations. RP GIBSON, FW (reprint author), USAF, PHILLIPS LAB, AFMC, PL GPOA, BEDFORD, MA 01731 USA. NR 30 TC 0 Z9 0 U1 2 U2 2 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 JUL 20 PY 1994 VL 33 IS 21 BP 4919 EP + PG 0 WC Optics SC Optics GA PB632 UT WOS:A1994PB63200050 PM 20935868 ER PT J AU NATHAN, V AF NATHAN, V TI TUNNELING DARK CURRENT IN GAAS/ALXGA1-XAS QUANTUM-WELL DETECTORS SO PHYSICA STATUS SOLIDI A-APPLIED RESEARCH LA English DT Note RP NATHAN, V (reprint author), USAF,PHILLIPS LAB,3550 ABERDEEN SE,KIRTLAND AFB,NM 87117, USA. NR 9 TC 0 Z9 0 U1 0 U2 0 PU AKADEMIE VERLAG GMBH PI BERLIN PA MUHLENSTRASSE 33-34, D-13187 BERLIN, GERMANY SN 0031-8965 J9 PHYS STATUS SOLIDI A JI Phys. Status Solidi A-Appl. Res. PD JUL 16 PY 1994 VL 144 IS 1 BP K37 EP K40 DI 10.1002/pssa.2211440134 PG 4 WC Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Materials Science; Physics GA PB072 UT WOS:A1994PB07200033 ER PT J AU CHENG, JP LO, I MITCHELL, WC AF CHENG, JP LO, I MITCHELL, WC TI NEGATIVE PERSISTENT PHOTOEFFECT ON CYCLOTRON-RESONANCE IN INAS/AL0.5GA0.5SB QUANTUM-WELLS SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID PHOTOCONDUCTIVITY; SEMICONDUCTORS; ALXGA1-XAS; CRYSTALS; MODEL; MASS AB Far-infrared magneto-optical spectroscopy has been used to investigate the negative persistent photoconductivity (NPPC) effect in InAs/Al0.5Ga0.5Sb quantum wells at low temperatures. After an in situ cross-gap illumination, the electron density in the InAs well is reduced by about 28%, and the cyclotron effective mass decreases from (0.0342 +/- 0.0002)mo to (0.0322 +/- 0.0002)m0. The time scale for the NPPC buildup transient determined from the results of a photon-dose experiment is on the order of 10 ms with an illumination power flux of approximately 10 mW/cm2. C1 NATL SUN YAT SEN UNIV,DEPT PHYS,KAOHSIUNG,TAIWAN. WRIGHT LAB,WL MLPO,WRIGHT PATTERSON AFB,OH 45433. RP CHENG, JP (reprint author), MIT,FRANCIS BITTER NATL MAGNET LAB,CAMBRIDGE,MA 02139, USA. NR 20 TC 9 Z9 9 U1 0 U2 0 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 JUL 15 PY 1994 VL 76 IS 2 BP 667 EP 670 DI 10.1063/1.357809 PG 4 WC Physics, Applied SC Physics GA NX400 UT WOS:A1994NX40000005 ER PT J AU SARIN, A CLERICI, M BLATT, SP HENDRIX, CW SHEARER, GM HENKART, PA AF SARIN, A CLERICI, M BLATT, SP HENDRIX, CW SHEARER, GM HENKART, PA TI INHIBITION OF ACTIVATION-INDUCED PROGRAMMED CELL-DEATH AND RESTORATION OF DEFECTIVE IMMUNE-RESPONSES OF HIV+ DONORS BY CYSTEINE PROTEASE INHIBITORS SO JOURNAL OF IMMUNOLOGY LA English DT Article ID HUMAN-IMMUNODEFICIENCY-VIRUS; MATURE T-CELLS; MARROW TRANSPLANTATION; MONONUCLEAR-CELLS; INFECTED PATIENTS; LYMPHOCYTES-T; APOPTOSIS; AIDS; CD4; INDIVIDUALS AB In vitro activation of PBLs from HIV+ individuals resulted in programmed cell death (PCD) within 2 days in 58 of 95 HIV+ blood donors, in contrast to only two of 30 control HIV- donors. CD4(+) and CD8(+) T cells from HIV+ donors died under these conditions, and these cells showed apoptotic nuclear morphology and DNA fragmentation. To test the hypothesis that this cell death shares a common biochemical pathway with that induced by TCR cross-linking in normal dividing T cells, inhibitors of the calcium-activated cysteine protease calpain were tested for their ability to block the activation-induced PCD of HIV+ donors. The E-64 (epoxysuccinyl) class of cysteine protease inhibitors gave 40% to 60% inhibition of HIV+ PCD responses, while the aldehyde inhibitors, leupeptin and calpain inhibitor II, gave 60% to 67% inhibition. The involvement of this calpain-dependent death pathway in HIV-induced functional T helper cell deficiency was tested by examining the effect of calpain inhibitors on the defective Ag- and mitogen-dependent proliferative responses of HIV+ donors. Twenty to fifty percent of such defective responses were significantly restored toward normal levels by calpain inhibitors, whereas control responses by normal donors were largely unaffected. These data suggest that a calpain-dependent PCD pathway contributes to HIV-associated immunodeficiency and suggest the use of calpain inhibitors as a possible route to therapy of HIV infection. C1 NCI,EXPTL IMMUNOL BRANCH,BETHESDA,MD 20892. WILFORD HALL USAF MED CTR,HIV UNIT,LACKLAND AFB,TX 78236. RI Hendrix, Craig/G-4182-2014 OI Hendrix, Craig/0000-0002-5696-8665 NR 35 TC 110 Z9 112 U1 0 U2 1 PU AMER ASSOC IMMUNOLOGISTS PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 SN 0022-1767 J9 J IMMUNOL JI J. Immunol. PD JUL 15 PY 1994 VL 153 IS 2 BP 862 EP 872 PG 11 WC Immunology SC Immunology GA NW183 UT WOS:A1994NW18300042 PM 8021517 ER PT J AU DIMIDUK, DM THOMPSON, AW WILLIAMS, JC AF DIMIDUK, DM THOMPSON, AW WILLIAMS, JC TI INFLUENCES OF THIN FOIL PREPARATION AND HANDLING ON THE DISLOCATION-STRUCTURE OBSERVED IN NI3AL ALLOYS SO SCRIPTA METALLURGICA ET MATERIALIA LA English DT Article C1 GE CO,ENGN MAT & TECHNOL LAB,CINCINNATI,OH 45215. CARNEGIE MELLON UNIV,DEPT MAT SCI & ENGN,PITTSBURGH,PA 15213. RP DIMIDUK, DM (reprint author), MAT DIRECTORATE,WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433, USA. NR 12 TC 5 Z9 5 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0956-716X J9 SCRIPTA METALL MATER JI Scr. Metall. Materialia PD JUL 15 PY 1994 VL 31 IS 2 BP 197 EP 201 DI 10.1016/0956-716X(94)90174-0 PG 5 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA NJ718 UT WOS:A1994NJ71800016 ER PT J AU PAVATE, V WILLIAMS, LB KVAM, EP KOZLOWSKI, G ENDRES, W OBERLY, CE AF PAVATE, V WILLIAMS, LB KVAM, EP KOZLOWSKI, G ENDRES, W OBERLY, CE TI IDENTIFICATION AND CORRELATION OF MICROSTRUCTURAL DEFECTS WITH FLUX-PINNING IN NI-DOPED MELT-TEXTURED YBA2CU3O7-DELTA SO APPLIED PHYSICS LETTERS LA English DT Article ID STACKING AB Microstructural examination using transmission electron microscopy has been conducted on melt textured Ni-doped and pristine YBaCu3O7-delta. Magnetization hysteresis suggests that the observed microstructural imperfections strongly influence flux pinning behavior. The investigation reveals a considerable difference in the density and distribution of stacking faults, especially near the grain boundaries. Dislocation nets and tangles were also observed in the Ni-doped samples. It is proposed that the addition of Ni creates an excess of Cu which diffuses into the subgrains during oxygenation to be incorporated as stacking faults. Fine inclusions (25-50 nm) of Y2BaCuO5 were observed, suggesting that Ni refines the microstructure. C1 USAF,WRIGHT PATTERSON AFB,OH 45433. RP PAVATE, V (reprint author), PURDUE UNIV,SCH MAT ENGN,W LAFAYETTE,IN 47907, USA. RI Kvam, Eric/A-2457-2010 NR 11 TC 5 Z9 5 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 JUL 11 PY 1994 VL 65 IS 2 BP 246 EP 248 DI 10.1063/1.112615 PG 3 WC Physics, Applied SC Physics GA NW224 UT WOS:A1994NW22400040 ER PT J AU KELLER, CE CARPER, WR AF KELLER, CE CARPER, WR TI C-13 NMR RELAXATION AND DUAL-SPIN PROBE STUDIES OF MOLTEN-SALTS CONTAINING ETHYLALUMINUM DICHLORIDE SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article ID TEMPERATURE IONIC LIQUIDS; AL-27 NMR; LATTICE RELAXATION; ALUMINUM-CHLORIDE; ALCL3 AB The microdynamics of binary and ternary room-temperature molten salts containing ethylaluminum dichloride (EtAlCl(2)) are examined by C-13 NMR relaxation methods as a function of melt composition and temperature. The EtAlCl(2) melts include 1-ethyl-3-methylimidazolium chloride (MEICl) and AlCl3. Dual spin probe (DSP) results indicate that interactions exist between the MEI cation and both AlCl4- and the EtAlCl(2) dimer. Liquid-state Al-27 quadrupolar coupling constants of complexes between MEI(+) and either AlCl4- (1.11-1.20 MHz) or the EtAlCl(2) dimer (31-43 MHz) are obtained from DSP analyses. C1 WICHITA STATE UNIV,DEPT CHEM,WICHITA,KS 67260. USAF ACAD,FRANK J SEILER RES LAB,COLORADO SPRINGS,CO 80840. NR 33 TC 17 Z9 17 U1 1 U2 3 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 JUL 7 PY 1994 VL 98 IS 27 BP 6865 EP 6869 DI 10.1021/j100078a032 PG 5 WC Chemistry, Physical SC Chemistry GA NW531 UT WOS:A1994NW53100032 ER PT J AU DEMEULEMEESTER, E HERROELEN, W SIMPSON, WP BAROUM, S PATTERSON, JH YANG, KK AF DEMEULEMEESTER, E HERROELEN, W SIMPSON, WP BAROUM, S PATTERSON, JH YANG, KK TI ON A PAPER BY CHRISTOFIDES ET-AL FOR SOLVING THE MULTIPLE-RESOURCE CONSTRAINED, SINGLE PROJECT SCHEDULING PROBLEM SO EUROPEAN JOURNAL OF OPERATIONAL RESEARCH LA English DT Article DE PROJECT MANAGEMENT; SCHEDULING; NETWORKS; BRANCH-AND-BOUND ID BRANCH AB In a recently published article in EJOR, Christofides et al. (CAT) present a depth-first search, branch-and-bound solution procedure for the multiple-resource constrained, single project scheduling problem. While there are many important contributions in this paper, we show by counterexample that if the branching strategy described by the authors is used, the optimal solution might not result. Computational experience on a set of test problems appearing in the open literature is reported both with the original branching strategy suggested by the authors and a modified branching strategy that we propose. The modified strategy guarantees the determination of the optimal solution in all instances of the problem at the expense of an increase in node evaluations and average CPU time. Computational results using the revised procedure and a hybrid, breadth-first search procedure also investigated by CAT are reported. C1 CATHOLIC UNIV LEUVEN,DEPT APPL ECON SCI,B-3000 LOUVAIN,BELGIUM. USAF,INST TECHNOL,DEPT QUANTITAT MANAGEMENT,WASHINGTON,DC 20330. KING ABDULAZIZ UNIV,DEPT IND ENGN,JEDDAH,SAUDI ARABIA. INDIANA UNIV,DEPT OPERAT MANAGEMENT,BLOOMINGTON,IN 47401. NATL UNIV SINGAPORE,DEPT DECIS SCI,SINGAPORE 0511,SINGAPORE. RI YANG, Kum Khiong/D-2147-2010 NR 7 TC 10 Z9 10 U1 1 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0377-2217 J9 EUR J OPER RES JI Eur. J. Oper. Res. PD JUL 6 PY 1994 VL 76 IS 1 BP 218 EP 228 DI 10.1016/0377-2217(94)90018-3 PG 11 WC Management; Operations Research & Management Science SC Business & Economics; Operations Research & Management Science GA NX554 UT WOS:A1994NX55400017 ER PT J AU BURTON, RR AF BURTON, RR TI THE ROLE OF ARTIFICIAL GRAVITY IN THE EXPLORATION OF SPACE SO ACTA ASTRONAUTICA LA English DT Article; Proceedings Paper CT 10th IAA Man in Space Symposium: At the Threshold of the 21st-Century CY APR 19-23, 1993 CL TOKYO, JAPAN SP INT ACAD ASTRONAUT, UNION SPACE SCI JAPAN, NATL AEROSP LAB, INST SPACE & ASTRONAUT SCI, NATL SPACE DEV AGCY JAPAN, PRIME MINISTERS OFF, SCI & TECH AGCY, MINIST EDUC SCI & CULTURE, MINIST HLTH & WELFARE, NIHON UNIV RP BURTON, RR (reprint author), ARMSTRONG LAB,CREW SYST DIRECTORATE,2509 KENNEDY CIRCLE,BROOKS AFB,TX 78235, USA. NR 0 TC 3 Z9 3 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0094-5765 J9 ACTA ASTRONAUT JI Acta Astronaut. PD JUL PY 1994 VL 33 BP 217 EP 220 DI 10.1016/0094-5765(94)90128-7 PG 4 WC Engineering, Aerospace SC Engineering GA PJ372 UT WOS:A1994PJ37200029 PM 11539525 ER PT J AU MORAN, KJ BERAN, PS AF MORAN, KJ BERAN, PS TI NAVIER-STOKES SIMULATIONS OF SLENDER AXISYMMETRICAL SHAPES IN SUPERSONIC, TURBULENT-FLOW SO AIAA JOURNAL LA English DT Article ID SCHEMES AB Computational fluid dynamics is used to study flows about slender, axisymmetric bodies at very high speeds. Numerical experiments are conducted to simulate a broad range of flight conditions. Mach number is varied from 1.5 to 8 and Reynolds number is varied from 1 X 10(6)/m to 2 X 10(8)/m. The primary objective is to develop and validate a computational methodology for the accurate simulation of a wide variety of flow structures. Accurate results are obtained for detached bow shocks, recompression shocks, corner-point expansions, base-flow recirculations, and turbulent boundary layers. Accuracy is assessed through comparison with theory and experimental data; computed surface pressure, shock structure, base-flow structure, and velocity profiles are within measurement accuracy throughout the range of conditions tested. The methodology is both practical and general: general in its applicability, and practical in its performance. To achieve high accuracy, modifications to previously reported techniques are implemented in the scheme. These modifications improve computed results in the vicinity of symmetry lines and in the base flow region, including the turbulent wake. RP MORAN, KJ (reprint author), USAF,INST TECHNOL,GRAD SCH ENGN,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433, USA. NR 33 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 JUL PY 1994 VL 32 IS 7 BP 1446 EP 1456 DI 10.2514/3.12214 PG 11 WC Engineering, Aerospace SC Engineering GA NW275 UT WOS:A1994NW27500014 ER PT J AU BOWERSOX, RDW SCHETZ, JA AF BOWERSOX, RDW SCHETZ, JA TI MODEL FOR COMPRESSIBLE TURBULENCE IN HYPERSONIC WALL BOUNDARY AND HIGH-SPEED MIXING LAYERS SO AIAA JOURNAL LA English DT Note C1 VIRGINIA POLYTECH INST & STATE UNIV,DEPT AEROSP & OCEAN ENGN,BLACKSBURG,VA 24061. RP BOWERSOX, RDW (reprint author), USAF,DEPT AERONAUT & ASTRONAUT ENGN,WRIGHT PATTERSON AFB,OH 45433, USA. NR 14 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 SN 0001-1452 J9 AIAA J JI AIAA J. PD JUL PY 1994 VL 32 IS 7 BP 1531 EP 1533 DI 10.2514/3.12224 PG 3 WC Engineering, Aerospace SC Engineering GA NW275 UT WOS:A1994NW27500026 ER PT J AU WOLFE, PA POLHAMUS, CD KUBIK, C ROBINSON, AB CLEMENT, DJ AF WOLFE, PA POLHAMUS, CD KUBIK, C ROBINSON, AB CLEMENT, DJ TI GIANT DUODENAL-ULCERS ASSOCIATED WITH THE POSTOPERATIVE USE OF KETOROLAC - REPORT OF 3 CASES SO AMERICAN JOURNAL OF GASTROENTEROLOGY LA English DT Note ID GASTRIC-ULCER C1 WILFORD HALL USAF MED CTR,DIV GASTROENTEROL,LACKLAND AFB,TX 78236. NR 9 TC 12 Z9 12 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 JUL PY 1994 VL 89 IS 7 BP 1110 EP 1111 PG 2 WC Gastroenterology & Hepatology SC Gastroenterology & Hepatology GA NV563 UT WOS:A1994NV56300032 PM 8017377 ER PT J AU CORNISH, JD DREYER, GL SNYDER, GE KUEHL, TJ GERSTMANN, DR NULL, DM COALSON, JJ DELEMOS, RA AF CORNISH, JD DREYER, GL SNYDER, GE KUEHL, TJ GERSTMANN, DR NULL, DM COALSON, JJ DELEMOS, RA TI FAILURE OF ACUTE PERINATAL ASPHYXIA OR MECONIUM ASPIRATION TO PRODUCE PERSISTENT PULMONARY-HYPERTENSION IN A NEONATAL BABOON MODEL SO AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY LA English DT Article DE PERSISTENT PULMONARY HYPERTENSION OF THE NEWBORN; PERSISTENT FETAL CIRCULATION; MECONIUM ASPIRATION SYNDROME; BABOON; ACUTE INTERMITTENT ASPHYXIA ID CONGENITAL DIAPHRAGMATIC-HERNIA; SMOOTH-MUSCLE; BRONCHOPULMONARY DYSPLASIA; STRUCTURAL BASIS; NEWBORN-INFANT; DISTRESS; FEATURES; INUTERO AB OBJECTIVE: Our purpose was to determine whether perinatal asphyxia or meconium aspiration, or both, can produce the physiologic and histologic pulmonary vascular changes associated with the meconium aspiration syndrome. STUDY DESIGN: Twenty neonatal baboons were studied in four groups: 1, control; 2, meconium aspiration; 3, asphyxia (intermittent cord compression); and 4, asphyxia with meconium aspiration, Animals were ventilated for 24 hours under ketamine, diazepam, and pancuronium. Data were analyzed by means of mixed model analysis of measures. RESULTS: Meconium significantly impaired oxygenation (p < 0.001), whereas concurrent asphyxia moderated this effect (p < 0.034), Meconium also increased the need for ventilatory support (p < 0.002). No animal had persistent pulmonary hypertension; neither systemic nor pulmonary systolic pressures differed statistically between the groups. No animal showed evidence of abnormal pulmonary arteriolar muscularization. CONCLUSION: Sublethal perinatal asphyxia or meconium aspiration were insufficient to produce either the physiologic or histologic changes of severe meconium aspiration syndrome. It is unlikely that intrapartum fetal distress alone can produce this syndrome in human neonates. C1 WILFORD HALL USAF MED CTR,DEPT PEDIAT,SAN ANTONIO,TX 78236. SW FDN BIOMED RES,DEPT PHYSIOL & MED,SAN ANTONIO,TX. UNIV TEXAS,HLTH SCI CTR,DEPT PATHOL,SAN ANTONIO,TX 78284. RI Yagudin, Kamil/B-3016-2014; Alla, Makarynska/C-5217-2016; Kniazieva, Nina/N-8915-2015; Volkov, Viktor/O-5279-2015; Shkarlet, Serhiy/F-9603-2016; Mardirossian, Garo/O-8976-2016; Drin' / Дрінь, Yaroslav / Ярослав/A-5486-2017 OI Yagudin, Kamil/0000-0002-9161-845X; Alla, Makarynska/0000-0003-1879-8455; Kniazieva, Nina/0000-0002-1523-6775; Volkov, Viktor/0000-0002-3990-8126; Shkarlet, Serhiy/0000-0003-2062-3662; Drin' / Дрінь, Yaroslav / Ярослав/0000-0003-0945-7325 NR 26 TC 19 Z9 19 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 JUL PY 1994 VL 171 IS 1 BP 43 EP 49 PG 7 WC Obstetrics & Gynecology SC Obstetrics & Gynecology GA NZ068 UT WOS:A1994NZ06800008 PM 8030731 ER PT J AU EPSTEIN, LJ MOHSENIFAR, Z DAAR, ES YEH, V MEYER, RD AF EPSTEIN, LJ MOHSENIFAR, Z DAAR, ES YEH, V MEYER, RD TI CLINICAL-EXPERIENCE WITH ATOVAQUONE - A NEW DRUG FOR TREATING PNEUMOCYSTIS-CARINII PNEUMONIA SO AMERICAN JOURNAL OF THE MEDICAL SCIENCES LA English DT Article DE ATOVAQUONE; PNEUMOCYSTIS CARINII PNEUMONIA; AIDS ID ACQUIRED-IMMUNODEFICIENCY-SYNDROME; TRIMETHOPRIM-SULFAMETHOXAZOLE; TOXOPLASMA-GONDII; RANDOMIZED TRIAL; 566C80; HYDROXYNAPHTHOQUINONE; PENTAMIDINE; VIRUS; AIDS; PERSISTENCE AB Atovaquone is a new hydroxynapthoquinone antiprotozoal agent active against Pneumocystis carinii in vitro and in animal models. The authors report an experience using atovaquone to treat 25 patients with mild to moderate P. carinii pneumonia. Eligible patients were treated for 21 days with 750 mg of atovaquone orally three times daily. Prednisone was added when the P(A-a)O-2 gradient was between 35-45 mm Hg. Patients were treated under three treatment protocols. Patients in Group 1 participated in one of two randomized comparative drug trials, designed for patients with and without sulfonamide intolerance. Six of seven patients successfully completed treatment, and one patient discontinued treatment because of an adverse reaction (>5 times baseline increase in transaminase level). Patients in Group 2 were treated with atovaquone for mild to moderate P. carinii pneumonia under a treatment Investigational New Drug protocol because of prior sulfonamide reactions. Fifteen of these 18 patients successfully completed treatment; one died from other complications during treatment and two discontinued treatment for adverse reactions (>5 times baseline increase in transaminase levels, and a diffuse rash). Serum transaminase levels returned to normal at the end of treatment in all patients with elevated levels. All patients demonstrated clinical resolution of their pneumonia and improvement of pretreatment hypoxemia (Group 1: pretreatment PaO2 = 82 +/- 14 mm Hg, posttreatment PaO2 = 92 +/- 9 mm Hg). Overall, 21 (84%) of 25 patients successfully finished therapy without significant adverse reactions. Atovaquone appears to be an effective and well-tolerated oral treatment for mild to moderate P. carinii pneumonia. The main toxicities appear to be a reversible serum transaminase rise and a nondesquamating rash. Currently, atovaquone should be considered as an alternative therapy for intolerant patients or as salvage therapy. C1 CEDARS SINAI MED CTR,CEDARS SINAI MED RES INST,DEPT MED,DIV PULM DIS,LOS ANGELES,CA 90048. WILFORD HALL USAF MED CTR,DIV PULM & CRIT CARE MED,SAN ANTONIO,TX 78236. CEDARS SINAI MED CTR,CEDARS SINAI MED RES INST,DEPT MED,DIV INFECT DIS,LOS ANGELES,CA 90048. UNIV CALIF LOS ANGELES,SCH MED,DEPT MED,LOS ANGELES,CA 90024. NR 19 TC 6 Z9 6 U1 0 U2 1 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 0002-9629 J9 AM J MED SCI JI Am. J. Med. Sci. PD JUL PY 1994 VL 308 IS 1 BP 5 EP 8 DI 10.1097/00000441-199407000-00003 PG 4 WC Medicine, General & Internal SC General & Internal Medicine GA NU617 UT WOS:A1994NU61700003 PM 8010339 ER PT J AU GRISSOM, TE MITZEL, HC BUNEGIN, L ALBIN, MS AF GRISSOM, TE MITZEL, HC BUNEGIN, L ALBIN, MS TI THE EFFECT OF ANESTHETICS ON NEUROLOGIC OUTCOME DURING THE RECOVERY PERIOD OF SPINAL-CORD INJURY IN RATS SO ANESTHESIA AND ANALGESIA LA English DT Article ID CEREBROCORTICAL NEURONS; BARBITURATE PROTECTION; COMPRESSION INJURY; CSF PRODUCTION; ISCHEMIA; FENTANYL; MODEL; DECOMPRESSION; PHENCYCLIDINE; HALOTHANE AB We evaluated the effects of anesthetics on neurologic outcome in a model of recoverable experimental spinal cord injury (SCI). Adult rats were implanted with various sizes of hygroscopic plastic material at the T12 spinal level to determine the dimensions that would produce a progressive neurologic deficit from which recovery could occur. Neurologic evaluation was conducted on an inclined plane, noting the maximum angle at which an animal was able to maintain orientation perpendicular to the longitudinal midline. Scores were statistically modeled for each group to develop profiles of neurologic deficits. Rats were subjected to a 4-h exposure to isoflurane, fentanyl/nitrous oxide, or ketamine 7 or 8 days postimplantation. Neurologic outcomes were compared to a SCI reference group which received no postimplant anesthesia. An animal weight/desiccated implant volume (W-a/V-i) ratio of 53 to 73 g/mm(3) produced postimplant neurologic deficits which deteriorated to near maximum within 3 days, followed by a gradual improvement beginning at Day 8 and returning to near normal between 22 and 25 days. Final outcome was based on modeled ramp scores for each group and reported in degrees +/- SD: reference, 71.2 +/- 1.1; fentanyl/N2O, 70.4 +/- 0.3; isoflurane, 72.6 +/- 1.1; and ketamine, 64.9 +/- 0.6. The fentanyl group attained maximum recovery first (P > 0.05) but did not recover to a level different on the average from the reference group. The ketamine group demonstrated a poorer (P > 0.05) recovery level relative to the other anesthetic protocols. C1 UNIV TEXAS,HLTH SCI CTR,DEPT ANESTHESIOL,NEUROANESTHESIA LAB,SAN ANTONIO,TX 78284. WILFORD HALL USAF MED CTR,DEPT ANESTHESIOL,SAN ANTONIO,TX 78236. NR 43 TC 6 Z9 6 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 JUL PY 1994 VL 79 IS 1 BP 66 EP 74 PG 9 WC Anesthesiology SC Anesthesiology GA NU612 UT WOS:A1994NU61200013 PM 8010456 ER PT J AU RESTAINO, SR RADICK, RR LOOS, GC CONLEY, RW AF RESTAINO, SR RADICK, RR LOOS, GC CONLEY, RW TI VALIDATION OF INTERFEROMETRIC IMAGING FROM A PUPIL-MASKING EXPERIMENT ON A SOLAR TELESCOPE SO APPLIED OPTICS LA English DT Article AB We present the results of a pupil-masking experiment that uses the Sun as the source object. The goal of our experiment was a proof of-concept validation for a Fizeau (image-plane) interferometric beam combination with a complex source that overfilled the field of view. We employed a phase-diversity technique to measure the optical phases required to recover the instantaneous optical transfer function for the masked pupil. We used a Wiener filter to deconvolve the dirty images. C1 UNIV NEW MEXICO, DEPT PHYS & ASTRON, ALBUQUERQUE, NM 87119 USA. USAF, PHILLIPS LAB, GPSS, SUNSPOT, NM 88349 USA. RP RESTAINO, SR (reprint author), USAF, PHILLIPS LAB, LIMI, 3550 ABERDEEN SE, KIRTLAND AFB, NM 87117 USA. NR 9 TC 2 Z9 2 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 JUL 1 PY 1994 VL 33 IS 19 BP 4143 EP 4146 PG 4 WC Optics SC Optics GA NY766 UT WOS:A1994NY76600009 PM 20935765 ER PT J AU TAYLOR, SM MILLS, JL FUJITANI, RM AF TAYLOR, SM MILLS, JL FUJITANI, RM TI THE JUXTARENAL ABDOMINAL AORTIC-ANEURYSM - A MORE COMMON PROBLEM THAN PREVIOUSLY REALIZED SO ARCHIVES OF SURGERY LA English DT Article ID MANAGEMENT; DIFFICULT AB Objective: To determine the incidence and treatment outcome of juxtarenal infrarenal aneurysmectomy in a vascular practice minimally biased by tertiary referral. Design: A 5-year retrospective review of all aortic operations from our vascular registry was performed, and a case series of juxtarenal aneurysmectomies was analyzed. Patients: Of 174 infrarenal aortic aneurysmectomies performed, 27 (15.5%) (95% confidence interval, 10.5% to 21.8%)involved the juxtarenal aorta. Interventions: Juxtarenal involvement was unsuspected but found by aortography in 25 (93%) of 27 cases. Resection was performed transabdominally in 20 cases (74%) and retroperitoneally in seven cases (26%). Main Outcome Measures: Incidence, operative technique, morbidity, and mortality were analyzed and compared with those of historical controls. Results: The incidence of juxtarenal aneurysmectomy was 15.5%. No operative deaths occurred, but there was a 19% incidence of surgical morbidity (including a 7% incidence of transient renal failure). The late survival rate was 89% (follow-up, 1 to 53 months; mean, 18 months). Conclusions: Juxtarenal aortic aneurysms are not uncommon. Successful management is possible, even outside the large referral center. C1 UNIV S FLORIDA,SCH MED,DIV VASC SURG,TAMPA,FL 33620. WILFORD HALL USAF MED CTR,VASC SURG SERV,SAN ANTONIO,TX 78236. RP TAYLOR, SM (reprint author), GREENVILLE HOSP SYST,DEPT SURG EDUC,701 GROVE RD,GREENVILLE,SC 29605, USA. OI Mills, Joseph/0000-0002-4955-4384 NR 10 TC 25 Z9 26 U1 0 U2 0 PU AMER MEDICAL ASSOC PI CHICAGO PA 515 N STATE ST, CHICAGO, IL 60610 SN 0004-0010 J9 ARCH SURG-CHICAGO JI Arch. Surg. PD JUL PY 1994 VL 129 IS 7 BP 734 EP 737 PG 4 WC Surgery SC Surgery GA NW481 UT WOS:A1994NW48100011 PM 8024454 ER PT J AU KLEINMANN, SG LYSAGHT, MG PUGHE, WL SCHNEIDER, SE SKRUTSKIE, MF WEINBERG, MD PRICE, SD MATTHEWS, K SOIFER, BT HUCHRA, JP BEICHMAN, CA CHESTER, TJ JARRETT, T KOPAN, GL LONSDALE, CJ ELIAS, J LIEBERT, JW SEITZER, P AF KLEINMANN, SG LYSAGHT, MG PUGHE, WL SCHNEIDER, SE SKRUTSKIE, MF WEINBERG, MD PRICE, SD MATTHEWS, K SOIFER, BT HUCHRA, JP BEICHMAN, CA CHESTER, TJ JARRETT, T KOPAN, GL LONSDALE, CJ ELIAS, J LIEBERT, JW SEITZER, P TI THE 2-MICRON ALL-SKY SURVEY - SURVEY RATIONALE AND INITIAL TESTING SO ASTROPHYSICS AND SPACE SCIENCE LA English DT Article; Proceedings Paper CT Les Houches School on Science with Astronomical Near-Infrared Sky Surveys CY SEP 20-24, 1993 CL LES HOUCHES SCHOOL, CTR PHYS HOUCHES, LES HOUCHES, FRANCE SP LES HOUCHES SCH, CTR SCI HOUCHES HO LES HOUCHES SCHOOL, CTR PHYS HOUCHES C1 USAF,PHILLIPS LAB,WASHINGTON,DC 20330. CALTECH,PASADENA,CA 91125. UNIV ARIZONA,TUCSON,AZ 85721. UNIV MICHIGAN,ANN ARBOR,MI 48109. RP KLEINMANN, SG (reprint author), UNIV MASSACHUSETTS,AMHERST,MA 01003, USA. NR 6 TC 35 Z9 35 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0004-640X J9 ASTROPHYS SPACE SCI JI Astrophys. Space Sci. PD JUL PY 1994 VL 217 IS 1-2 BP 11 EP 17 DI 10.1007/BF00990014 PG 7 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA PD019 UT WOS:A1994PD01900003 ER PT J AU PRICE, SD AF PRICE, SD TI INFRARED SPACE BORNE EXPERIMENTS TO STUDY GALACTIC STRUCTURE SO ASTROPHYSICS AND SPACE SCIENCE LA English DT Article; Proceedings Paper CT Les Houches School on Science with Astronomical Near-Infrared Sky Surveys CY SEP 20-24, 1993 CL LES HOUCHES SCHOOL, CTR PHYS HOUCHES, LES HOUCHES, FRANCE SP LES HOUCHES SCH, CTR SCI HOUCHES HO LES HOUCHES SCHOOL, CTR PHYS HOUCHES ID IRAS SOURCES; MILKY-WAY; GALAXY; BULGE; DISK; STARS; PLANE AB The Geophysics Directorate of Phillips Lab is engaged in several Galactic structure studies. These studies involve a reprocessing and analysis of the IRAS measurements and experiments on the next two infrared satellites, the Midcourse Space Experiment (MSX) and the Infrared Space Observatory (ISO). A collaboration with the Deep Near Infrared Survey (DENIS) will provide complementary coverage of the same Galactic Plane fields surveyed by MSX and ISO. RP PRICE, SD (reprint author), USAF,GEOPHYSICS DIRECTORATE,BEDFORD,MA 01731, USA. NR 21 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0004-640X J9 ASTROPHYS SPACE SCI JI Astrophys. Space Sci. PD JUL PY 1994 VL 217 IS 1-2 BP 35 EP 40 DI 10.1007/BF00990020 PG 6 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA PD019 UT WOS:A1994PD01900009 ER PT J AU ARMBRUSTER, DA TILLMAN, MD HUBBS, LM AF ARMBRUSTER, DA TILLMAN, MD HUBBS, LM TI LIMIT OF DETECTION (LOD) LIMIT OF QUANTITATION (LOQ) - COMPARISON OF THE EMPIRICAL AND THE STATISTICAL, METHODS EXEMPLIFIED WITH GC-MS ASSAYS OF ABUSED DRUGS SO CLINICAL CHEMISTRY LA English DT Article DE SENSITIVITY; DATA HANDLING; STATISTICS; GAS CHROMATOGRAPHY MASS SPECTROMETRY; FORENSIC CHEMISTRY AB The limit of detection (LOD) for any analytical procedure, the point at which analysis is just feasible, may be determined by a statistical approach based on measuring replicate blank (negative) samples or by an empirical approach, consisting of measuring progressively more dilute concentrations of analyte. The limit of quantitation (LOQ), or concentration at which quantitative results can be reported with a high degree of confidence, may likewise be determined by either approach. We used both methods to determine LOD and LOQ for forensic gas chromatographic-mass spectrometric (GC-MS) analyses of abused drugs. The statistically determined LOD and LOQ values for these assays underestimated the LOD because of the large imprecision associated with blank measurements and the inability of blank samples to meet typical GC-MS acceptance criteria. The empirical method provided much more realistic LOD values, supported by reasonable experimental data, and are 0.5-0.03 the magnitude of the corresponding statistical LODs. The empirical LODs and LOQs are identical for these GC-MS assays. The observations made here about the LOD/LOQ for specific forensic GC-MS procedures are generally applicable to any type of analysis. RP ARMBRUSTER, DA (reprint author), USAF,CTR MED,CTR HUMAN SYST,ARMSTRON LAB DRUG TESTING DIV,2601 W RD,SUITE 1,BROOKS AFB,TX 78235, USA. NR 16 TC 212 Z9 216 U1 5 U2 38 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 JUL PY 1994 VL 40 IS 7 BP 1233 EP 1238 PG 6 WC Medical Laboratory Technology SC Medical Laboratory Technology GA NW103 UT WOS:A1994NW10300005 PM 8013092 ER PT J AU NORTON, D JOHNS, S KEEFER, C SOREF, R AF NORTON, D JOHNS, S KEEFER, C SOREF, R TI TUNABLE MICROWAVE FILTERING USING HIGH DISPERSION FIBER TIME DELAYS SO IEEE PHOTONICS TECHNOLOGY LETTERS LA English DT Article AB We have demonstrated a tapped delay line microwave filter based on the use of high dispersion fiber as the tunable time delay. This system offers advantages of high bandwidth and tunability over current methods of time delay filtering. C1 USAF,ERO,BEDFORD,MA 01731. RP NORTON, D (reprint author), USAF,ROME LAB,CTR PHOTON,OCPA,GRIFFISS AFB,NY 13441, USA. NR 6 TC 93 Z9 94 U1 1 U2 4 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 JUL PY 1994 VL 6 IS 7 BP 831 EP 832 DI 10.1109/68.311469 PG 2 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA PB477 UT WOS:A1994PB47700019 ER PT J AU GUSTAFSON, JA MAYBECK, PS AF GUSTAFSON, JA MAYBECK, PS TI FLEXIBLE SPACESTRUCTURE CONTROL VIA MOVING-BANK MULTIPLE MODEL ALGORITHMS SO IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS LA English DT Article AB The development and performance of moving-bank multiple model adaptive control (MMAC) algorithms for quelling vibrations induced in the SPICE 2 space structure are presented. The structure consists of a large platform and a smaller platform connected by three legs in a tripod fashion. Deviations of the line-of-sight (LOS) vector from the center of the large platform to the center of the smaller platform are used for LQG controller performance evaluation. The parameter estimator implements the maximum entropy with identity covariance (ME/I) algorithm; the moving bank logic employs parameter position monitoring the controller uses the modified MMAC method. Whereas parameter variations of two percent caused instabilities in the single filter/controller design, the MMAC algorithm provides an excellent method to estimate a wide range of parameter variations and to quell oscillations in the structure. RP GUSTAFSON, JA (reprint author), USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,WRIGHT LAB,2950 P ST,WRIGHT PATTERSON AFB,OH 45433, USA. NR 10 TC 14 Z9 16 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 0018-9251 J9 IEEE T AERO ELEC SYS JI IEEE Trans. Aerosp. Electron. Syst. PD JUL PY 1994 VL 30 IS 3 BP 750 EP 757 DI 10.1109/7.303744 PG 8 WC Engineering, Aerospace; Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA NV887 UT WOS:A1994NV88700009 ER PT J AU MAYBECK, PS HERRERA, TD EVANS, RJ AF MAYBECK, PS HERRERA, TD EVANS, RJ TI TARGET TRACKING USING INFRARED MEASUREMENTS AND LASER ILLUMINATION SO IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS LA English DT Article ID FILTER AB A missile target tracker is designed using a filter/correlator (with adaptive target shape identification) based on forward-looking infrared (FLIR) sensor measurements to track the center-of-intensity of the hardbody/plume combination, and another filter using Doppler and/or speckle information in the return from a low-power laser illuminator to estimate the offset between the intensity centroid and the hardbody center-of-mass. The Doppler information is shown to yield smaller blas and error variance from the tracker than the speckle information. Performance of trackers based on just Doppler or both Doppler and speckle information from the laser return is portrayed as a function of important parameters in the tracking environment. RP MAYBECK, PS (reprint author), USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,WRIGHT LAB,2950 P ST,WRIGHT PATTERSON AFB,OH 45433, USA. NR 29 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 0018-9251 J9 IEEE T AERO ELEC SYS JI IEEE Trans. Aerosp. Electron. Syst. PD JUL PY 1994 VL 30 IS 3 BP 758 EP 768 DI 10.1109/7.303745 PG 11 WC Engineering, Aerospace; Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA NV887 UT WOS:A1994NV88700010 ER PT J AU WRIGHT, CHG HECKERT, GP BLEIER, TE AF WRIGHT, CHG HECKERT, GP BLEIER, TE TI NEAR-TERM APPROACH TO DATA RELAY FOR SATELLITES UNDER TEST SO IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS LA English DT Article AB The increasing need for a continuous communications link with U.S. Department of Defense (DoD) spacecraft during test missions in low Earth orbit (LEO) has resulted in greater interest in geosynchronous data relay services. This may be a more economical alternative to building additional remote tracking stations for the Air Force Satellite Control Network (AFSCN), and avoids tying up operational assets for a test mission. A low-cost near-term approach for such a space-based data relay system would utilize two existing Defense Satellite Communication System III spacecraft, two existing ground terminals, and a small, standardized terminal using autonomous antenna pointing for the space vehicle under test. Such a system design is presented. C1 USAF ACAD,DEPT ELECT ENGN,COLORADO SPRINGS,CO 80840. STANFORD TELECOM,SAN MATEO,CA 94403. AEROSP CORP,SUNNYVALE,CA 94089. NR 9 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 0018-9251 J9 IEEE T AERO ELEC SYS JI IEEE Trans. Aerosp. Electron. Syst. PD JUL PY 1994 VL 30 IS 3 BP 778 EP 786 DI 10.1109/7.303747 PG 9 WC Engineering, Aerospace; Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA NV887 UT WOS:A1994NV88700012 ER PT J AU HAUPT, RL AF HAUPT, RL TI THINNED ARRAYS USING GENETIC ALGORITHMS SO IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION LA English DT Article AB Large arrays are difficult to thin in order to obtain low sidelobes. Traditional statistical methods of aperiodic array synthesis fall far short of optimum configurations. Traditional optimization methods are not well suited for optimizing a large number of parameters or discrete parameters. This paper presents how to optimally thin an array using genetic algorithms. The genetic algorithm determines which elements are turned off in a periodic array to yield the lowest maximum relative sidelobe level. Simulation results for 200 element linear arrays and 200 element planar arrays are shown. The arrays are thinned to obtain sidelobe levels of less than -20 dB. The linear arrays are also optimized over both scan angle and bandwidth. RP HAUPT, RL (reprint author), USAF ACAD,DEPT ELECT ENGN,COLORADO SPRINGS,CO 80840, USA. NR 11 TC 396 Z9 439 U1 1 U2 14 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 JUL PY 1994 VL 42 IS 7 BP 993 EP 999 DI 10.1109/8.299602 PG 7 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA PA188 UT WOS:A1994PA18800013 ER PT J AU RIX, C MCCOLSKEY, D ACREE, R AF RIX, C MCCOLSKEY, D ACREE, R TI LOW-COST COMPOSITE STRUCTURES FOR SUPERCONDUCTING MAGNETIC ENERGY-STORAGE SYSTEMS SO IEEE TRANSACTIONS ON MAGNETICS LA English DT Article; Proceedings Paper CT 13th International Congress on Magnet Technology CY SEP 20-24, 1993 CL VICTORIA CONF CTR, VICTORIA, CANADA SP UNIV VICTORIA, TRIUMF LAB HO VICTORIA CONF CTR ID 20.4 MWH SMES/ETM; DESIGN AB As part of the Superconducting Magnetic Energy Storage/Engineering Test Model (SMES-ETM) program, design, analysis, fabrication and test programs were conducted to evaluate the low cost manufacturing of Fiberglass Reinforced Plastic (FRP) beams for usage as major components of the structural and electrical insulation systems. These studies utilized pultrusion process technologies and vinylester resins to produce large net sections at costs significantly below that of conventional materials. Demonstration articles incorporating laminate architectures and design details representative of SMES-ETM components were fabricated using the pultrusion process and epoxy, vinylester, and polyester resin systems. The mechanical and thermal properties of these articles were measured over the temperature range from 4 K to 300 K. The results of these tests showed that the pultruded, vinylester components have properties comparable to those of currently used materials, such as G-10, and are capable of meeting the design requirements for the SMES-ETM system. C1 NATL INST STAND & TECHNOL,BOULDER,CO 80303. USAF,PHILLIPS LAB,EDWARDS AFB,CA 93523. RP RIX, C (reprint author), GEN DYNAMICS SPACE MAGNETICS,SAN DIEGO,CA 92138, USA. NR 2 TC 1 Z9 1 U1 3 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 JUL PY 1994 VL 30 IS 4 BP 2593 EP 2596 DI 10.1109/20.305809 PN 2 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA PA173 UT WOS:A1994PA17300254 ER PT J AU PYATI, VP AF PYATI, VP TI USEFUL BESSEL-FUNCTION IDENTITIES AND INTEGRALS - COMMENTS SO IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES LA English DT Letter RP PYATI, VP (reprint author), USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,WRIGHT PATTERSON AFB,OH 45433, USA. NR 3 TC 1 Z9 1 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 0018-9480 J9 IEEE T MICROW THEORY JI IEEE Trans. Microw. Theory Tech. PD JUL PY 1994 VL 42 IS 7 BP 1283 EP 1284 DI 10.1109/22.299770 PG 2 WC Engineering, Electrical & Electronic SC Engineering GA NZ278 UT WOS:A1994NZ27800027 ER PT J AU RAOUF, RA PALAZOTTO, AN AF RAOUF, RA PALAZOTTO, AN TI ON THE NONLINEAR FREE-VIBRATIONS OF CURVED ORTHOTROPIC PANELS SO INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS LA English DT Article ID SHELL PANELS AB This paper studies the non-linear free vibrations of simply supported curved orthotropic panels. The panels are modeled using the Donnell-Mushtari-Vlasov shell relationships. A combination of the Galerkin procedure and the Lindstedt-Poincare perturbation technique is used to construct an approximate solution to the resulting non-linear equations of motion. Algebraic manipulations show that the panel exhibits a non-linear response only when both the involved axial and circumferential modes are axisymmetric. Numerical studies of a Graphite/Epoxy panel show that its response is softening, i.e. the non-linear natural frequency decreases as the amplitude of motion increases. They also show that the lower modes are more non-linear than the higher, mainly flexural modes. The presented results also show that for the studied panels, the non-linear effects are the strongest for shallow, thin, and short panels. C1 USAF,INST TECHNOL,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433. RP RAOUF, RA (reprint author), USN ACAD,DEPT MECH ENGN,ANNAPOLIS,MD 21402, USA. NR 15 TC 16 Z9 16 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0020-7462 J9 INT J NONLINEAR MECH JI Int. J. Non-Linear Mech. PD JUL PY 1994 VL 29 IS 4 BP 507 EP 514 DI 10.1016/0020-7462(94)90019-1 PG 8 WC Mechanics SC Mechanics GA PA061 UT WOS:A1994PA06100005 ER PT J AU SCHRECK, SJ HELIN, HE AF SCHRECK, SJ HELIN, HE TI UNSTEADY VORTEX DYNAMICS AND SURFACE PRESSURE TOPOLOGIES ON A FINITE PITCHING WING SO JOURNAL OF AIRCRAFT LA English DT Article; Proceedings Paper CT AIAA 31st Aerospace Sciences Meeting CY JAN 11-14, 1993 CL RENO, NV SP AMER INST AERONAUT & ASTRONAUT AB A straight wing having an NACA 0015 cross section and rectangular planform was attached to a circular splitter plate. This configuration was pitched at a constant rate to angles exceeding the static stall angle. The unsteady, vortex-dominated flow that developed over the wing and splitter plate was characterized in detail using surface pressure measurements and flow visualization. Both types of data showed that the leading-edge vortex underwent profound three-dimensional alterations to cross section and convection over the entire wing span. These changes in leading-edge vortex structure and kinematics were correlated with prominent spanwise variations in force coefficients. When appropriately dissected, visualization results and pressure data suggested physical mechanisms to account for these three-dimensional variations in unsteady forces and surface pressures. RP SCHRECK, SJ (reprint author), USAF ACAD,FRANK J SEILER RES LAB,2354 VANDENBERG DR,STE 6H79,COLORADO SPRINGS,CO 80840, USA. NR 0 TC 20 Z9 20 U1 1 U2 3 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0021-8669 J9 J AIRCRAFT JI J. Aircr. PD JUL-AUG PY 1994 VL 31 IS 4 BP 899 EP 907 DI 10.2514/3.46577 PG 9 WC Engineering, Aerospace SC Engineering GA PA474 UT WOS:A1994PA47400023 ER PT J AU HOWELL, JR HOWELL, NE AF HOWELL, JR HOWELL, NE TI COMPARING AIRCRAFT AGILITY USING MAHALANOBIS DISTANCES SO JOURNAL OF AIRCRAFT LA English DT Note C1 USAF,EDWARD AFB,CA 93523. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0021-8669 J9 J AIRCRAFT JI J. Aircr. PD JUL-AUG PY 1994 VL 31 IS 4 BP 1001 EP 1002 DI 10.2514/3.46599 PG 2 WC Engineering, Aerospace SC Engineering GA PA474 UT WOS:A1994PA47400045 ER PT J AU LOOK, DC JOGAI, B STUTZ, CE SHERRIFF, RE DESALVO, GC ROGERS, TJ BALLINGALL, JM AF LOOK, DC JOGAI, B STUTZ, CE SHERRIFF, RE DESALVO, GC ROGERS, TJ BALLINGALL, JM TI MAGNETO-HALL CHARACTERIZATION OF DELTA-DOPED PSEUDOMORPHIC HIGH-ELECTRON-MOBILITY TRANSISTOR STRUCTURES SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID HETEROSTRUCTURES AB Conventional Hall-effect determination of the two-dimensional electron gas (2DEG) concentration n2D in pseudomorphic high electron mobility transistor structures is invalid because of interference from the highly doped GaAs cap. Furthermore, the usual methods of dealing with this cap-interference problem, namely, (1) etching off the cap totally, (2) etching the cap until the mobility reaches a maximum, or (3) growing a separate structure with a thin, depleted cap, in general, give n2D values that are too low. However, we show here that magnetic-field-dependent Hall (M-Hall) measurements can separately determine the carrier concentrations and mobilities in the cap and 2DEG regions, as verified by comparison with a self-consistent, four-band, k.p calculation and also by electrochemical capacitance-voltage measurements in structures with different cap and spacer thicknesses. C1 WRIGHT LAB,ELR,SOLID STATE ELECTR DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. MARTIN MARIETTA ELECTR LAB,SYRACUSE,NY 13221. RP LOOK, DC (reprint author), WRIGHT STATE UNIV,RES CTR,DAYTON,OH 45435, USA. NR 11 TC 10 Z9 12 U1 0 U2 0 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 JUL 1 PY 1994 VL 76 IS 1 BP 328 EP 331 DI 10.1063/1.357148 PG 4 WC Physics, Applied SC Physics GA NW318 UT WOS:A1994NW31800046 ER PT J AU YU, PW STUTZ, CE MANASREH, MO KASPI, R CAPANO, MA AF YU, PW STUTZ, CE MANASREH, MO KASPI, R CAPANO, MA TI MOVING PHOTOLUMINESCENCE BANDS IN GAAS1-XSBX LAYERS GROWN BY MOLECULAR-BEAM EPITAXY ON INP SUBSTRATES SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID VAPOR-PHASE EPITAXY; COMPOSITION MODULATION; GAAS0.5SB0.5; TEMPERATURE; RELAXATION; EMISSION; ALLOYS; GAAS; MBE AB We report the excitation intensity dependent photoluminescence properties of GaAs1-xSbx layers grown by molecular beam epitaxy on InP substrates. Photoluminescence consists of the bound exciton and the quasi-donor-acceptor pair transitions for the layers in the range of 0.26 less-than-or-equal-to x less-than-or-equal-to 0.94. The concentration modulation produced by the relaxation of the misfit strain between the epitaxial GaAs1-xSbx layer and InP substrate is responsible for the quasi-donor-acceptor pair transition. A large Stokes shift between the photoluminescence transition of the bound exciton and the band gap determined by the optical absorption measurements is also consistent with our model of concentration modulation. C1 WRIGHT LAB, ELR, SOLID STATE ELECTR DIRECTORATE, WRIGHT PATTERSON AFB, OH 45433 USA. WL, MLBM, WRIGHT PATTERSON AFB, OH 45433 USA. RP YU, PW (reprint author), WRIGHT STATE UNIV, RES CTR, DAYTON, OH 45435 USA. NR 26 TC 18 Z9 18 U1 0 U2 5 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD JUL 1 PY 1994 VL 76 IS 1 BP 504 EP 508 DI 10.1063/1.357102 PG 5 WC Physics, Applied SC Physics GA NW318 UT WOS:A1994NW31800073 ER PT J AU JAUCHEM, JR FREI, MR AF JAUCHEM, JR FREI, MR TI CARDIORESPIRATORY CHANGES DURING MICROWAVE-INDUCED LETHAL HEAT-STRESS AND BETA-ADRENERGIC-BLOCKADE SO JOURNAL OF APPLIED PHYSIOLOGY LA English DT Article DE RADIOFREQUENCY RADIATION; BODY TEMPERATURE; HEART RATE; BLOOD PRESSURE; RESPIRATION; THERMAL STRESS ID RADIOFREQUENCY RADIATION; KETAMINE; RATS; PROPRANOLOL; RESPONSES; EXERCISE; HEATSTROKE; ANESTHESIA; AGENTS; MODEL AB Ketamine-anesthetized Sprague-Dawley rats were exposed to 2,450-MHz microwaves at an average power density of 60 mW/cm(2) (whole body specific absorption rate of similar to 14 W/kg) until lethal temperatures were attained. The effects of propranolol (2 or 10 mg/kg body wt), nadolol (10 mg/kg), and labetalol (10 mg/kg) on physiological responses (including changes in body temperature, heart rate, blood pressure, and respiratory rate) were examined. Lethal temperatures in the labetalol and both propranolol groups were significantly lower than in saline controls. Survival time was significantly less only in the high-dose propranolol group. In all groups, heart rate increased continuously during exposure; blood pressure increased until colonic temperature reached 41-41.5 degrees C and then decreased. These heart rate and blood pressure changes were similar to those that occur during environmental heat stress. Heart rate and blood pressure changes among groups were similar. Respiratory rate, however, was significantly elevated during most of the exposure period in the high-dose propranolol animals. This change in respiration, coupled with the significantly lower survival time in these animals, suggests a vital role of respiration in susceptibility to microwave-induced heating. C1 USAF,ARMSTRONG LAB,OCCUPAT & ENVIRONM HLTH DIRECTORATE,DIV RADIOFREQUENCY RADIAT,BROOKS AFB,TX 78235. TRINITY UNIV,DEPT BIOL,SAN ANTONIO,TX 78212. NR 44 TC 24 Z9 28 U1 0 U2 2 PU AMER PHYSIOLOGICAL SOC PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 SN 8750-7587 J9 J APPL PHYSIOL JI J. Appl. Physiol. PD JUL PY 1994 VL 77 IS 1 BP 434 EP 440 PG 7 WC Physiology; Sport Sciences SC Physiology; Sport Sciences GA NX536 UT WOS:A1994NX53600060 PM 7961267 ER PT J AU NEU, RW NICHOLAS, T AF NEU, RW NICHOLAS, T TI EFFECT OF LAMINATE ORIENTATION ON THE THERMOMECHANICAL FATIGUE BEHAVIOR OF A TITANIUM MATRIX COMPOSITE SO JOURNAL OF COMPOSITES TECHNOLOGY & RESEARCH LA English DT Article DE METAL MATRIX COMPOSITES (MMCS); SILICON CARBIDE TITANIUM; THERMOMECHANICAL FATIGUE (TMF); LAMINATE ORIENTATION; LIFE PREDICTION; STRAIN ACCUMULATION; FIBER VOLUME FRACTION ID THERMAL FATIGUE; SCS-6 AB Thermomechanical fatigue (TMF) tests were conducted on the silicon carbide fiber and titanium alloy matrix composite, SCS-6/TIMETAL(R)21S. Three different laminate orientations were considered: [0]4, [0/90]s, and [0/+/-45/90]s. Both in-phase and out-of-phase stress-controlled tests were conducted under a temperature cycle of 150-degrees to 650-degrees-C and a stress ratio of 0.1. The fatigue lives for these different orientations can be consolidated within a factor of 3 by normalizing the maximum applied stress (S(max)) by the ultimate tensile strength at the S(max) temperature of the TMF cycle. For all laminate orientations, the maximum and minimum strain increase during in-phase cycling, whereas only maximum strain increases during out-of-phase cycling. Damage accumulation under in-phase cycling is attributed to a combination of the increasing stress carried by the [0] fibers due to cyclic matrix stress relaxation and the gradual breakage of [0] fibers. The damage during out-of-phase cycling is attributed to matrix cracks which initiate at the surface with the aid of the environment and/or initiate internally at the transverse fibers in [0/90]s and [0/+/-45/90]s composites. A simple model to compute cyclic strain accumulation based on the proposed mechanisms successfully captures the experimentally observed behavior. TMF life is shown to be sensitive to fiber volume fraction under in-phase cycling, but not under out-of-phase cycling. TMF conditions are shown to be more severe than isothermal fatigue. RP NEU, RW (reprint author), WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433, USA. OI Neu, Richard W./0000-0002-3779-3038 NR 22 TC 14 Z9 15 U1 0 U2 1 PU AMER SOC TESTING MATERIALS PI W CONSHOHOCKEN PA 100 BARR HARBOR DR, W CONSHOHOCKEN, PA 19428-2959 SN 0884-6804 J9 J COMPOS TECH RES JI J. Compos. Technol. Res. PD JUL PY 1994 VL 16 IS 3 BP 214 EP 224 PG 11 WC Materials Science, Composites; Polymer Science SC Materials Science; Polymer Science GA NW676 UT WOS:A1994NW67600002 ER PT J AU HARRIS, MM MARSH, DN VOS, EA DURKIN, E AF HARRIS, MM MARSH, DN VOS, EA DURKIN, E TI FLEX CYCLE COMBUSTOR DEVELOPMENT AND DEMONSTRATION SO JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME LA English DT Article; Proceedings Paper CT 38th International Gas Turbine and Aeroengine Congress and Exposition CY MAY 24-27, 1993 CL CINCINNATI, OH SP INT GAS TURBINE INST AB An innovative, ''flex-cycle'' combustion system has been developed for the Garrett Model 400-1 Integrated Power Unit (IPU), a 425 shp (317 kW) gas turbine engine designed for use on future fighter aircraft. Demonstration of this system required real-time transient operation of the combustor in a full-scale test rig. The transient testing was unique, having been performed with an electronic control, which modulated all combustor operating parameters according to programmed engine component maps, drag curves, fuel schedules, and selected ambient test conditions. The axially injected annular combustor is capable of engine starts in two seconds, as well as producing 200 shp (149 k W) for emergency use at all altitudes up to 50,000 ft (15,240 m). The combustion system is capable of switching operation from the emergency power stored energy (SE) mode to the normal-air breathing (NAB) auxiliary power mode without loss of engine power. The flex-cycle combustor supplies emergency power in the SE mode with a temperature rise of 2200-degrees-F (1222-degrees-C) and in the NAB mode with a temperature rise of 1600-degrees-F (889-degrees-C). Specific features that make these requirements possible include air-assisted simplex airblast fuel atomizers with integral check valves, and effusion-cooled combustor liner walls. This paper describes the flex-cycle combustion system design, test methods used, and significant test results. Steady-state performance, in both the SE and NAB operating modes, and real-time transient test results are discussed. The transient testing included rapid starts as well as transitions from the SE to NAB operating regimes. C1 USAF,WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. RP HARRIS, MM (reprint author), ALLIED SIGNAL AEROSP CO,GARRETT AUXILIARY POWER DIV,PHOENIX,AZ 85010, USA. NR 8 TC 0 Z9 3 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 JUL PY 1994 VL 116 IS 3 BP 534 EP 541 DI 10.1115/1.2906852 PG 8 WC Engineering, Mechanical SC Engineering GA PA464 UT WOS:A1994PA46400011 ER PT J AU ZUIKER, JR DVORAK, GJ AF ZUIKER, JR DVORAK, GJ TI THE EFFECTIVE PROPERTIES OF COMPOSITE-MATERIALS WITH CONSTANT REINFORCEMENT DENSITY BY THE LINEAR MORI-TANAKA METHOD SO JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME LA English DT Article ID INCLUSIONS AB In its original form, the Mori-Tanaka method estimates constant overall properties of statistically homogeneous composite materials subjected to uniform overall stresses, strain or temperature changes, from averages of local fields in the phases. To permit applications involving large overall stress and/or temperature gradients, and functionally graded materials with a variable reinforcement density, the method has been extended to linearly variable overall and local fields by Zuiker and Dvorak (Composites Engineering, Vol. 4, 19-35, 1994) as a first step toward application of the method to statistically inhomogeneous materials with variable reinforcement density. Here, the effective properties are examined in detail. Non-zero components of the stiffness matrix are shown to satisfy invariance requirements and to vary with reinforcement volume fraction and size of the representative volume. It is shown that the linear and constant field approaches provide different estimates of overall properties for small representative volumes, but nearly identical estimates for large volumes. C1 RENSSELAER POLYTECH INST,DEPT MECH ENGN,TROY,NY 12180. RP ZUIKER, JR (reprint author), WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433, USA. NR 20 TC 11 Z9 11 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 JUL PY 1994 VL 116 IS 3 BP 428 EP 437 DI 10.1115/1.2904309 PG 10 WC Engineering, Mechanical; Materials Science, Multidisciplinary SC Engineering; Materials Science GA PA256 UT WOS:A1994PA25600028 ER PT J AU YU, JS CHANG, WS AF YU, JS CHANG, WS TI TAYLOR LIMIT OF EQUILIBRATION AND THE MULTIMODE DIFFUSION-APPROXIMATION SO JOURNAL OF ENGINEERING MATHEMATICS LA English DT Article ID CONTAMINANT DISPERSION; SHEAR FLOWS; SOLUTE AB The multimode diffusion approximation for solute dispersion in transversely bounded shear flows owes its origin to the formal method of eigenmode expansion. It is put forth upon the premise that a quasi-steady condition termed the Taylor limit of equilibrium exists in the course of time when equilibrium estimates of the residual terms of the concentration distribution can be realistically made contingent to the evolution of their primary counterparts. By applying the Green's function for the diffusion equation, this paper provides a qualifying account for the establishment of the Taylor limit. A method of successive approximations is derived for the determination of the principal mode coefficient functions with the inclusion of bulk reaction and longitudinal diffusion. The resulting equations governing the evolution of these mode coefficient functions are truncated to conform to the multimode diffusion type and the special Taylor-limit results given by Smith are easily deduced. Examples are given to illustrate the attainment of a convergent solution. C1 AERO PROPULS & POWER DIRECTORATE,WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. RP YU, JS (reprint author), W VIRGINIA INST TECHNOL,DEPT MECH ENGN,MONTGOMERY,WV 25136, USA. NR 17 TC 1 Z9 1 U1 0 U2 2 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0022-0833 J9 J ENG MATH JI J. Eng. Math. PD JUL PY 1994 VL 28 IS 4 BP 297 EP 310 DI 10.1007/BF00128749 PG 14 WC Engineering, Multidisciplinary; Mathematics, Interdisciplinary Applications SC Engineering; Mathematics GA NW429 UT WOS:A1994NW42900002 ER PT J AU QUAN, R AF QUAN, R TI SYSTEM-IDENTIFICATION USING FREQUENCY SCANNING AND THE EIGENSYSTEM REALIZATION-ALGORITHM SO JOURNAL OF GUIDANCE CONTROL AND DYNAMICS LA English DT Article AB The application of the eigensystem realization algorithm to flexible structures excited with nonimpulse type inputs is described. Sinusoidal pulses are a special subset of such inputs, and a discussion is given on their use to lock on to particular modes. The determination of impulse response functions from nonimpulse response functions is performed via a two step procedure. In the first step, free decay data is analyzed by the eigensystem realization algorithm to determine the structural frequencies and damping. Forced response data is analyzed in the second step, by solving an overdetermined set of linear equations for the modal coefficients of the impulse responses. It is shown that the number of impulse response coefficients is halved if displacement, velocity, and/or acceleration sensors are used in conjunction with force actuators. System identification is completed after the eigensystem realization algorithm is used on the impulse responses to produce a linear state space model of the structure. Numerical examples are given in which structural models are determined from simulated data corrupted with noise. RP QUAN, R (reprint author), USAF ACAD,FRANK J SEILER LAB,COLORADO SPRINGS,CO 80840, USA. NR 9 TC 4 Z9 4 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 JUL-AUG PY 1994 VL 17 IS 4 BP 670 EP 675 DI 10.2514/3.21254 PG 6 WC Engineering, Aerospace; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA PB528 UT WOS:A1994PB52800005 ER PT J AU ADAMS, RJ BUFFINGTON, JM BANDA, SS AF ADAMS, RJ BUFFINGTON, JM BANDA, SS TI DESIGN OF NONLINEAR CONTROL LAWS FOR HIGH-ANGLE-OF-ATTACK FLIGHT SO JOURNAL OF GUIDANCE CONTROL AND DYNAMICS LA English DT Article AB High-angle-of-attack flight control laws are developed for a supermaneuverable fighter aircraft. The methods of dynamic inversion and structured singular value synthesis are combined into an approach which addresses both the nonlinearity and robustness problems of flight at extreme operating conditions. The primary purpose of the dynamic inversion control elements is to linearize the vehicle response across the flight envelope. Structured singular value synthesis is used to design a dynamic controller which provides robust tracking to pilot commands. The resulting control system achieves desired flying qualities and guarantees a large margin of robustness to uncertainties for high-angle-of-attack flight conditions. High-fidelity nonlinear simulation results show that the combined dynamic inversion/structured singular value synthesis control law achieves a high level of performance in a realistic environment. C1 USAF,WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. RP ADAMS, RJ (reprint author), USAF,FLIGHT DYNAM DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433, USA. NR 20 TC 33 Z9 36 U1 0 U2 6 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 JUL-AUG PY 1994 VL 17 IS 4 BP 737 EP 746 DI 10.2514/3.21262 PG 10 WC Engineering, Aerospace; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA PB528 UT WOS:A1994PB52800013 ER PT J AU GAUDREAULT, MLD LIEBST, BS BAGLEY, RL AF GAUDREAULT, MLD LIEBST, BS BAGLEY, RL TI SIMULTANEOUS DESIGN OF ACTIVE VIBRATION CONTROL AND PASSIVE VISCOUS DAMPING (VOL 16, PG 654, 1993) SO JOURNAL OF GUIDANCE CONTROL AND DYNAMICS LA English DT Correction, Addition RP GAUDREAULT, MLD (reprint author), USAF,INST TECHNOL,WRIGHT PATTERSON AFB,OH 45433, USA. NR 1 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 0731-5090 J9 J GUID CONTROL DYNAM JI J. Guid. Control Dyn. PD JUL-AUG PY 1994 VL 17 IS 4 BP 879 EP 879 DI 10.2514/3.56637 PG 1 WC Engineering, Aerospace; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA PB528 UT WOS:A1994PB52800036 ER PT J AU HOLLKAMP, JJ STARCHVILLE, TF AF HOLLKAMP, JJ STARCHVILLE, TF TI A SELF-TUNING PIEZOELECTRIC VIBRATION ABSORBER SO JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES LA English DT Article AB A self-tuning piezoelectric vibration absorber is presented. A piezoelectric absorber, similar to a mechanical vibration absorber. has to be tuned to a particular structural vibration mode in order to be effective. The absorber presented here will tune itself to a particular mode and track that mode if it varies in frequency. Design of the aborber consists of a pair of lead zirconate titanate (PZT) tiles attached to the structure and shunted by an inductor-resistor circuit. This produces an electrical resonance that can be tuned to the desired structural mode by a simple control system. The absorber is experimentally demonstrated on a cantilevered beam. The experiments include an examination of the response of the absorber to an abrupt change in system parameters. C1 PENN STATE UNIV,DEPT AEROSP ENGN,UNIVERSITY PK,PA 16802. RP HOLLKAMP, JJ (reprint author), WRIGHT LAB,FIBGC,2145 5TH ST STE 2,WRIGHT PATTERSON AFB,OH 45433, USA. NR 12 TC 65 Z9 67 U1 1 U2 11 PU TECHNOMIC PUBL CO INC PI LANCASTER PA 851 NEW HOLLAND AVE, BOX 3535, LANCASTER, PA 17604 SN 1045-389X J9 J INTEL MAT SYST STR JI J. Intell. Mater. Syst. Struct. PD JUL PY 1994 VL 5 IS 4 BP 559 EP 566 DI 10.1177/1045389X9400500412 PG 8 WC Materials Science, Multidisciplinary SC Materials Science GA PA681 UT WOS:A1994PA68100012 ER PT J AU BHATTACHARYA, RS RAI, AK ZABINSKI, JS MCDEVITT, NT AF BHATTACHARYA, RS RAI, AK ZABINSKI, JS MCDEVITT, NT TI ION-BEAM MODIFICATION OF FULLERENE FILMS AND THEIR FRICTIONAL BEHAVIOR SO JOURNAL OF MATERIALS RESEARCH LA English DT Note ID CARBON CLUSTERS; C-60; SURFACES AB C60 films were deposited on a variety of substrates by thermal evaporation. The presence Of C60 in the films was confirmed by Transmission Electron Microscopy and Raman spectroscopic analysis. The C60 films exhibited an average friction coefficient of 0.4-0.5. The films were irradiated with 2 MeV Ag+ and B+ ions at various doses. High energy ion bombardment created damage that resulted in partly crystalline to amorphous films, dependent on the mass and dose of ions. The amorphous films showed a friction coefficient of <0.1. Partly crystalline films showed a friction coefficient at the same level as that of unirradiated films. C1 WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RAMSPEC RES,DAYTON,OH 45431. RP BHATTACHARYA, RS (reprint author), UES INC,4401 DAYTON XENIA RD,DAYTON,OH 45432, USA. NR 15 TC 11 Z9 11 U1 0 U2 2 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 JUL PY 1994 VL 9 IS 7 BP 1615 EP 1618 DI 10.1557/JMR.1994.1615 PG 4 WC Materials Science, Multidisciplinary SC Materials Science GA NU760 UT WOS:A1994NU76000001 ER PT J AU MEALEY, BL NEUBAUER, MF BUTZIN, CA WALDROP, TC AF MEALEY, BL NEUBAUER, MF BUTZIN, CA WALDROP, TC TI USE OF FURCAL BONE SOUNDING TO IMPROVE ACCURACY OF FURCATION DIAGNOSIS SO JOURNAL OF PERIODONTOLOGY LA English DT Article DE FURCATION DIAGNOSIS; PERIODONTAL DISEASES DIAGNOSIS; BONE AND BONES; BONE DENSITY ID GUIDED TISSUE REGENERATION; PERIODONTAL TREATMENT; MORPHOLOGY; DEFECTS AB ACCURATE DIAGNOSIS OF PERIODONTAL DESTRUCTION in the furcation region of multi-rooted teeth is a critical component of treatment planning, with different therapeutic approaches chosen based upon clinical determination of the severity of involvement. The current study assessed both vertical and horizontal depths of 274 furcations from 67 patients at three separate time points: by probing prior to anesthesia, by bone sounding after administration of anesthesia, and by direct measurement at the time of surgery. All measurements were made to the nearest millimeter. The mean vertical (1.8 mm) and horizontal (2.16 mm) furcation depths determined prior to anesthesia were significantly less than surgical measurements (2.79 mm and 3.65 mm, respectively). Use of sounding significantly improved the mean accuracy of vertical (2.40 mm) and horizontal (3.11 mm) furcation depth measurements relative to surgical determinations (P = 0.000). Surgical vertical depth was exactly the same as pre-anesthesia probing in 42% of furcations, within +/- 1 mm in 72.3% and within +/- 2 mm in 83.6%. Use of post-anesthesia sounding improved agreement in vertical measurements to 59.5%, 85.7%, and 93.1%, respectively. Surgical horizontal depth was exactly the same as pre-anesthesia probing measurements in 47.1% of furcations, within +/- 1 mm in 68.3% and within +/- 2 mm in 77.4%. Sounding improved agreement of horizontal measurements to 64.2%, 83.6%, and 88.3%, respectively. Underestimation of surgical furcation depths by pre-anesthesia probing was much more common than overestimation. Sounding reduced the percent and degree of underestimation in all furcation types. The data demonstrate the ability of post-anesthesia bone sounding to significantly improve the diagnostic accuracy of furcation invasions. RP MEALEY, BL (reprint author), WILFORD HALL USAF MED CTR,DST,DEPT PERIODONT,2450 PEPPERRELL ST,LACKLAND AFB,TX 78236, USA. NR 21 TC 20 Z9 22 U1 0 U2 0 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 JUL PY 1994 VL 65 IS 7 BP 649 EP 657 PG 9 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA NX807 UT WOS:A1994NX80700002 PM 7608840 ER PT J AU OPALSKI, FA MALL, S AF OPALSKI, FA MALL, S TI TENSION-COMPRESSION FATIGUE BEHAVIOR OF A SILICON-CARBIDE CALCIUM-ALUMINOSILICATE CERAMIC-MATRIX COMPOSITE SO JOURNAL OF REINFORCED PLASTICS AND COMPOSITES LA English DT Article ID GLASS AB The fatigue behavior of a silicon carbide fiber reinforced glass ceramic matrix composite, SiC/CAS subjected to tension-compression cycling was investigated. Two laminate layups were studied: cross-ply, [0/90]2S and unidirectional, [0]16. At first, the fatigue limit based on one million cycles was established for a tension-tension fatigue condition. Then, compression cycling was superimposed on this measured fatigue limit. The addition of this compression loading resulted in the development of longitudinal cracks parallel to the loading direction. This increased the amount of damage and ultimately led to total specimen failure prematurely. The larger the magnitude of the compression cycle, the earlier the development of longitudinal crack occurred and, consequently, the earlier failure occurred. This behavior was due to the inherently poor interfacial bond between matrix and fiber of the tested ceramic matrix composite. C1 USAF,INST TECHNOL,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433. NR 16 TC 2 Z9 4 U1 2 U2 7 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 JUL PY 1994 VL 13 IS 7 BP 617 EP 636 DI 10.1177/073168449401300702 PG 20 WC Materials Science, Composites; Polymer Science SC Materials Science; Polymer Science GA NU686 UT WOS:A1994NU68600002 ER PT J AU LEVAN, PD AF LEVAN, PD TI VISUAL PHOTOMETRIC EXPERIMENT - A GETAWAY SPECIAL PAYLOAD ABOARD STS-042 SO JOURNAL OF SPACECRAFT AND ROCKETS LA English DT Article AB Visible-light sensors were flown aboard the Space Shuttle in order to measure, without contamination by atmospheric airglow, the zodiacal light (sunlight reflected from interplanetary dust). A photomultiplier tube and four selectable optical filters constituted the primary sensor. This filter-wheel photometer was supplemented by two video cameras, which imaged star fields for aspect determination and provided an assessment of contaminating radiation. The suite of instruments was configured as part of a Getaway Special (GAS) experiment, in order to obtain the measurements at the lowest possible cost. As a GAS payload, the instruments were required to operate nearly autonomously. The payload had no gimbaled optics and no influence on the attitude timeline of the space shuttle. Only the enabling and disabling of data collection in accordance with prelaunch scheduling was controlled by the GAS payload specialist. Despite these limitations, the diffuse character of the zodiacal light permitted the serendipitous measurements described here. Several scans across the zodiacal dust plane were recorded, and provided peak brightness values for the zodiacal light at several solar elongation angles. A preliminary analysis of data redundantly recorded on a VHS audio track indicates ratios of zodiacal-light brightness in three spectral bands that are comparable to solar brightness ratios, confirming a result obtained previously with a balloon-based experiment. RP LEVAN, PD (reprint author), USAF,PHILLIPS LAB,GEOPHYS DIRECTORATE,BACKGROUNDS BRANCH,KIRTLAND AFB,NM 87117, USA. NR 6 TC 0 Z9 0 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 JUL-AUG PY 1994 VL 31 IS 4 BP 578 EP 584 DI 10.2514/3.26481 PG 7 WC Engineering, Aerospace SC Engineering GA PF146 UT WOS:A1994PF14600007 ER PT J AU PAXTON, MC HADLEY, JN HADLEY, MN EDWARDS, RC HARRISON, SJ AF PAXTON, MC HADLEY, JN HADLEY, MN EDWARDS, RC HARRISON, SJ TI CHORDA TYMPANI NERVE INJURY FOLLOWING INFERIOR ALVEOLAR INJECTION - A REVIEW OF 2 CASES SO JOURNAL OF THE AMERICAN DENTAL ASSOCIATION LA English DT Article ID DENTAL-ANESTHESIA; PARALYSIS; TASTE; DISEASE; BLOCK; PALSY; SMELL AB Permanent nerve injury following the injection of local anesthetic during dental procedures is rare. Two cases of chorda tympani nerve injury shown by ageusia are presented. C1 DAVID GRANT USAF MED CTR,DEPT ORAL & MAXILLOFACIAL SURG,TRAVIS AFB,CA 94535. UNIV ALABAMA,MED CTR,DEPT NEUROSURG,BIRMINGHAM,AL 35233. UNIV PACIFIC,SCH DENT,SAN FRANCISCO,CA 94115. MED COLL GEORGIA,DEPT MED ILLUSTRAT,AUGUSTA,GA 30912. RP PAXTON, MC (reprint author), USAF,MED CTR,SGDO,101 BODIN CIRCLE,TRAVIS AFB,CA 94535, USA. NR 38 TC 17 Z9 17 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 JUL PY 1994 VL 125 IS 7 BP 1003 EP 1006 PG 4 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA NV794 UT WOS:A1994NV79400021 PM 8040522 ER PT J AU CARLIN, RT OSTERYOUNG, RA AF CARLIN, RT OSTERYOUNG, RA TI A SILANE-BASED ELECTROACTIVE FILM PREPARED IN AN IMIDAZOLIUM CHLOROALUMINATE MOLTEN-SALT SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY LA English DT Article ID REDUCTION POTENTIALS; POLYPYRROLE FILMS; IONIC LIQUIDS; TEMPERATURE; ELECTROCHEMISTRY; POLYANILINE; ELECTRODE; CHLORIDE; SODIUM AB Electrochemical oxidation of Ph3SiCl (Ph = phenyl) in the room-temperature molten salt AlCl3:EMICl (EMICl = 1-ethyl-3-methylimidazolium chloride) results in the formation of an adherent electroactive film on the surface of solid electrodes. The film is reversibly oxidized and reduced in the molten salt and is conducting when in the oxidized state. Based on x-ray photoelectron spectroscopy analysis, the film consists of both a silane and an imidazole component, and the charge storage properties of the film are localized on the heterocyclic rings. This electroactive film compares favorably to other conducting polymers currently being investigated as positive electrodes in room-temperature molten salt batteries. C1 N CAROLINA STATE UNIV,DEPT CHEM,RALEIGH,NC 27695. RP CARLIN, RT (reprint author), USAF ACAD,FRANK J SEILER RES LAB,COLORADO SPRINGS,CO 80840, USA. NR 27 TC 10 Z9 10 U1 0 U2 3 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 JUL PY 1994 VL 141 IS 7 BP 1709 EP 1713 DI 10.1149/1.2054991 PG 5 WC Electrochemistry; Materials Science, Coatings & Films SC Electrochemistry; Materials Science GA NX196 UT WOS:A1994NX19600007 ER PT J AU CARLIN, RT DELONG, HC FULLER, J TRULOVE, PC AF CARLIN, RT DELONG, HC FULLER, J TRULOVE, PC TI DUAL INTERCALATING MOLTEN ELECTROLYTE BATTERIES SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY LA English DT Letter AB The reductive and oxidative intercalation of ions into graphite from room-temperature and low temperature molten salts is demonstrated. For this investigation, the molten salts use 1-ethyl-3-methylimidazolium (EMI+) or 1,2-dimethyl-3-propylimidazolium (DMPI+) as the cation and AlCl4-, BF4-, PF6-, CF3SO3-, or C6H5CO2- as the anion. In a two-electrode battery configuration, the molten salt electrolyte provides both the cation and anion which are intercalated into the graphite anode and cathode, respectively. A cell employing a (DMPI)(AlCl4) electrolyte and two graphite rod electrodes achieved an open-circuit voltage of 3.5 V and a cycling efficiency of 85%. RP CARLIN, RT (reprint author), USAF ACAD,FRANK J SEILER RES LAB,COLORADO SPRINGS,CO 80840, USA. NR 13 TC 150 Z9 152 U1 12 U2 54 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 JUL PY 1994 VL 141 IS 7 BP L73 EP L76 DI 10.1149/1.2055041 PG 4 WC Electrochemistry; Materials Science, Coatings & Films SC Electrochemistry; Materials Science GA NX196 UT WOS:A1994NX19600001 ER PT J AU KHALED, EEM CHOWDHURY, DQ HILL, SC BARBER, PW AF KHALED, EEM CHOWDHURY, DQ HILL, SC BARBER, PW TI INTERNAL AND SCATTERED TIME-DEPENDENT INTENSITY OF A DIELECTRIC SPHERE ILLUMINATED WITH A PULSED GAUSSIAN-BEAM SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION LA English DT Article ID STIMULATED RAMAN-SCATTERING; OPTICAL CAVITIES; DROPLETS; RESONANCE; MICRODROPLETS; MICROSPHERES; RADIATION; PARTICLE; EMISSION; WAVES AB Internal and scattered time-dependent intensities are calculated for a dielectric sphere illuminated with a pulsed Gaussian beam. The center frequency of the pulse spectrum is chosen to be on, near, or far from a morphology-dependent resonance of the sphere. The center of the beam is positioned inside, on the edge, or outside the sphere. The transfer function at a point, i.e., the electric field at each frequency of the pulse spectrum, is calculated with the plane-wave spectrum technique and the T-matrix method. The frequency spectrum of the field at a point is calculated by means of the incident field spectrum and the transfer function at that point. The time dependence of the electric field at a point inside or outside the sphere is obtained by inverse Fourier transforming the frequency spectrum. Two different decay rates in the internal and the scattered time-dependent intensity are observed: a decay rate that depends on the incident pulse spectrum and a rate that depends on the line shape of the resonant mode of the sphere. C1 CORNING INC,SP DV 02-4,CORNING,NY 14831. USAF,EDGEWOOD RES DEV & ENGN CTR,ABERDEEN PROVING GROUND,MD 21010. DESERT RES INST,CTR ATMOSPHER SCI,RENO,NV 89506. RP KHALED, EEM (reprint author), UNIV ASSIUT,DEPT ELECT & COMP ENGN,ASSIUT,EGYPT. NR 30 TC 21 Z9 21 U1 0 U2 2 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0740-3232 J9 J OPT SOC AM A JI J. Opt. Soc. Am. A-Opt. Image Sci. Vis. PD JUL PY 1994 VL 11 IS 7 BP 2065 EP 2071 DI 10.1364/JOSAA.11.002065 PG 7 WC Optics SC Optics GA NU786 UT WOS:A1994NU78600016 ER PT J AU TROXEL, SE WELSH, BM ROGGEMANN, MC AF TROXEL, SE WELSH, BM ROGGEMANN, MC TI OFF-AXIS OPTICAL TRANSFER-FUNCTION CALCULATIONS IN AN ADAPTIVE-OPTICS SYSTEM BY MEANS OF A DIFFRACTION CALCULATION FOR WEAK INDEX FLUCTUATIONS SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION LA English DT Article ID LASER GUIDE STARS; GROUND-BASED TELESCOPES; ATMOSPHERIC-TURBULENCE; PERFORMANCE ANALYSIS; IMAGING PERFORMANCE; ANISOPLANATISM; PROPAGATION; LIGHT AB The effects of turbulence-induced anisoplanatism cause the performance of an adaptive-optics system to be dependent on the separation angle between the imaged object and the source used as a reference. One method of quantifying this performance is through the optical transfer function (OTF). A new method is presented for calculating the upper bound on the OTF that is due to the residual or uncorrected phase and amplitude variations in an adaptive-optics system. The method includes diffraction effects, which in turn result in phase and amplitude effects. These results are compared with the geometric optics and are shown to yield a larger isoplanatic angle. A general expression for the OTF is obtained that permits evaluation of the effect of the inner- and outer-scale size of turbulence. A method is presented for layering the atmosphere and scaling the transfer function to different values of r0 and C(n)2 profiles without the need to recompute the entire OTF. We show that with four layers placed at 200 m, 2 km, 10 km, and 18 km the calculated OTF's are within 1% of the OTF's obtained with a continuous atmosphere. C1 USAF,INST TECHNOL,DEPT ENGN PHYS,WRIGHT PATTERSON AFB,OH 45433. RP TROXEL, SE (reprint author), USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,WRIGHT PATTERSON AFB,OH 45433, USA. NR 25 TC 16 Z9 16 U1 0 U2 4 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0740-3232 J9 J OPT SOC AM A JI J. Opt. Soc. Am. A-Opt. Image Sci. Vis. PD JUL PY 1994 VL 11 IS 7 BP 2100 EP 2111 DI 10.1364/JOSAA.11.002100 PG 12 WC Optics SC Optics GA NU786 UT WOS:A1994NU78600020 ER PT J AU FISCHER, V RISTOLAINEN, E HOLLOWAY, PH LAMPERT, WV HAAS, TW AF FISCHER, V RISTOLAINEN, E HOLLOWAY, PH LAMPERT, WV HAAS, TW TI SULFUR PASSIVATION OF ALXGA1-XAS FOR OHMIC CONTACT FORMATION SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS LA English DT Article; Proceedings Paper CT 40th National Symposium of the American-Vacuum-Society CY NOV 15-19, 1993 CL ORLANDO, FL SP AMER VACUUM SOC ID V-COMPOUND SEMICONDUCTORS; SURFACE PASSIVATION; BIPOLAR-TRANSISTOR; GAAS; GAAS/ALGAAS; HETEROSTRUCTURES; AU AB The use of sulfur to passivate Al0.3Ga0.7As surfaces to aid in the formation of Au and Al-Ni-Ge ohmic contacts has been studied using current-voltage measurements, Auger electron spectroscopy, and scanning electron microscopy (SEM). After cleaning the surfaces with solvents, the surfaces were passivated using. (NH4)2S. The samples were exposed to laboratory air, then placed in a vacuum for evaporation of Au or Al-Ni-Ge. The samples were then analyzed as deposited or after heat treatment in forming gas at temperatures and times up to 500-degrees-C and 30 min. Current-voltage measurements indicate that S passivation reduced the specific contact resistance for Au contacts but not for Al-Ni-Ge contacts. The Au films were stripped from the surface and SEM used to study the reaction ''pits'' on the Al0.3Ga0.7As surface. Presumably sulfur passivation assisted in ohmic contact formation with Au by preventing the formation of surface native oxides. C1 USAF,WRIGHT AERONAUT LABS,WRIGHT PATTERSON AFB,OH 45433. RP FISCHER, V (reprint author), UNIV FLORIDA,DEPT MAT SCI & ENGN,GAINESVILLE,FL 32611, USA. NR 26 TC 4 Z9 4 U1 1 U2 4 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0734-2101 J9 J VAC SCI TECHNOL A JI J. Vac. Sci. Technol. A-Vac. Surf. Films PD JUL-AUG PY 1994 VL 12 IS 4 BP 1103 EP 1107 DI 10.1116/1.579172 PN 1 PG 5 WC Materials Science, Coatings & Films; Physics, Applied SC Materials Science; Physics GA NZ030 UT WOS:A1994NZ03000034 ER PT J AU MCHUGH, CP AF MCHUGH, CP TI ARTHROPODS - VECTORS OF DISEASE AGENTS SO LABORATORY MEDICINE LA English DT Article AB This is the third and final article in a continuing education update series about arthropods. The first article explored identification of medically important arthropods. The second article dealt with how arthropods directly affect human health. This article highlights the role of arthropods as transmitters of disease agents. In mechanical transmission, pathogens may be transmitted to the host through the vector's mouthparts or feet or be passively regurgitated during blood-feeding. Biological transmission requires that pathogens go through a cycle of development or multiplication in the vector's body before being transmitted to the host. In the United States, zoonoses are the most commonly diagnosed arthropod-borne diseases, with tick-borne diseases particularly common. RP MCHUGH, CP (reprint author), USAF,OCCUPAT & ENVIRONM HLTH DIRECTORATE,AL OEMB,2402 E DR,BROOKS AFB,TX 78235, USA. NR 0 TC 10 Z9 12 U1 0 U2 2 PU AMER SOC CLIN PATHOLOGISTS PI CHICAGO PA 2100 W HARRISON ST, CHICAGO, IL 60612 SN 0007-5027 J9 LAB MED JI Lab. Med. PD JUL PY 1994 VL 25 IS 7 BP 429 EP 437 PG 9 WC Medical Laboratory Technology SC Medical Laboratory Technology GA NU189 UT WOS:A1994NU18900005 ER PT J AU WARD, WE AF WARD, WE TI UNTITLED SO LUBRICATION ENGINEERING LA English DT Editorial Material RP WARD, WE (reprint author), USAF,7481 LARISSA COURT,DAYTON,OH 45414, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC TRIBOLOGISTS & LUBRICATION ENGINEERS PI PARK RIDGE PA 838 BUSSE HIGHWAY, PARK RIDGE, IL 60068 SN 0024-7154 J9 LUBR ENG JI Lubric. Eng. PD JUL PY 1994 VL 50 IS 7 BP 507 EP 507 PG 1 WC Engineering, Mechanical SC Engineering GA NY836 UT WOS:A1994NY83600001 ER PT J AU PRASAD, SV MECKLENBURG, KR AF PRASAD, SV MECKLENBURG, KR TI SELF-LUBRICATING ALUMINUM METAL-MATRIX COMPOSITES DISPERSED WITH TUNGSTEN DISULFIDE AND SILICON-CARBIDE SO LUBRICATION ENGINEERING LA English DT Article DE SELF-LUBRICATING COMPOSITES; ALUMINUM; SOLID LUBRICATION ID PARTICLE COMPOSITES AB This paper describes the synthesis and tribological behavior of self-lubricating aluminum alloy metal-matrix composites (MMCs). The formulations of MMCs comprised of tungsten disulfide (WS2) and silicon carbide (SiC) particles dispersed in a commercial aluminum alloy (Al-0.40Si-0.75Mg) matrix. Composites were fabricated by a conventional powder metallurgy route involving blending, compacting and sintering. Friction and wear tests (up to a duration of one million cycles) were performed in a ball-on-disk configuration against a steel counterface. Wear scars on MMC disks and steel balls were analyzed in SEMIEDXS. In a dry nitrogen environment, the steady state friction coefficient of an Al-0.10SiC-0.03WS2MMC was 0.05, whereas in laboratory air (with relative humidity at approximately 65 percent it was 0.10. In both environments, transfer of aluminum to the steel counterface was absent. C1 WRIGHT LAB,MAT DIRECTORATE,WL,MLBT,WRIGHT PATTERSON AFB,OH 45433. RP PRASAD, SV (reprint author), SYSTRAN CORP,DAYTON,OH 45432, USA. NR 9 TC 6 Z9 7 U1 0 U2 2 PU SOC TRIBOLOGISTS & LUBRICATION ENGINEERS PI PARK RIDGE PA 838 BUSSE HIGHWAY, PARK RIDGE, IL 60068 SN 0024-7154 J9 LUBR ENG JI Lubric. Eng. PD JUL PY 1994 VL 50 IS 7 BP 511 EP 517 PG 7 WC Engineering, Mechanical SC Engineering GA NY836 UT WOS:A1994NY83600005 ER PT J AU HENNINGSEN, T SINGH, NB HOPKINS, RH MAZELSKY, R HOPKINS, FK FRAZIER, DO SINGH, OP AF HENNINGSEN, T SINGH, NB HOPKINS, RH MAZELSKY, R HOPKINS, FK FRAZIER, DO SINGH, OP TI GROWTH OF BINARY ORGANIC NLO CRYSTALS - M-NA P-NA AND M-NA CNA SYSTEMS SO MATERIALS LETTERS LA English DT Article AB Experiments were carried out to grow 3-nitroaniline (m.NA) crystals doped with 4-nitroaniline (p.NA) and 2-chloro 4-nitroaniline (CNA). The measured undercooling for m.NA, p.NA, and CNA were 0.21, 0.23 and 0.35 t(m) K respectively, where t(m) represents the melting temperature of the pure component. Because of the crystals' large heat of fusion and large undercooling, it was not possible to grow good quality crystals with low thermal gradients. In the conventional two-zone Bridgman furnace, the temperature of the hot zone had to be raised above the decomposition temperature of CNA, p.NA and m.NA to achieve the desired thermal gradient. To avoid decomposition, an unconventional Bridgman furnace was used. Two immiscible liquids, silicone oil and ethylene glycol, were used to build a special two-zone Bridgman furnace. A temperature gradient of 18 K/cm was achieved without exceeding the decomposition temperature of the crystal. The binary crystals, m.NA-p.NA and m.NA-CNA, were grown in centimeter sizes in this furnace. X-ray and optical characterization showed good optical quality. C1 WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. KN GOVT POST GRAD COLL,DEPT CHEM,GYANPUR,UTTAR PRADESH,INDIA. RP HENNINGSEN, T (reprint author), WESTINGHOUSE ELECT CORP,CTR SCI & TECHNOL,PITTSBURGH,PA 15235, USA. NR 5 TC 6 Z9 6 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-577X J9 MATER LETT JI Mater. Lett. PD JUL PY 1994 VL 20 IS 3-4 BP 203 EP 209 DI 10.1016/0167-577X(94)90088-4 PG 7 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA PB458 UT WOS:A1994PB45800022 ER PT J AU MERKEL, KG BRIGHT, VM SCHAUER, SN BARRETTE, J AF MERKEL, KG BRIGHT, VM SCHAUER, SN BARRETTE, J TI THERMALLY STABLE WTIAU NONALLOYED OHMIC CONTACTS ON IN0.5GA0.5AS FOR GAAS-ALGAAS HETEROJUNCTION BIPOLAR-TRANSISTOR APPLICATIONS SO MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY LA English DT Article AB This paper demonstrates WTiAu as a thermally stable, low resistance, non-alloyed, emitter ohmic contact for GaAs-AlGaAs heterojunction bipolar transistor applications. The minimum W layer thickness required for low contact resistance and long-term thermal stability was obtained. A W layer 900 angstrom thick yielded the lowest contact resistance (R(c) = 0.045 OMEGA mm) with a high degree of uniformity after (1) a collector ohmic contact rapid thermal annealing cycle at 420-degrees-C and (2) 500 h at 250-degrees-C. Secondary ion mass spectroscopy results indicate that In outdiffusion contributes to the thermal instability when thinner W layers are used. C1 USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,WRIGHT PATTERSON AFB,OH 45433. USA,RES LAB,FT MONMOUTH,NJ 07703. WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. NR 13 TC 5 Z9 5 U1 0 U2 0 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0921-5107 J9 MAT SCI ENG B-SOLID JI Mater. Sci. Eng. B-Solid State Mater. Adv. Technol. PD JUL PY 1994 VL 25 IS 2-3 BP 175 EP 178 DI 10.1016/0921-5107(94)90221-6 PG 4 WC Materials Science, Multidisciplinary; Physics, Condensed Matter SC Materials Science; Physics GA NX767 UT WOS:A1994NX76700012 ER PT J AU RAMM, AG KALEPS, I AF RAMM, AG KALEPS, I TI MODELING OF THE EJECTION PROCESS SO MATHEMATICAL AND COMPUTER MODELLING LA English DT Article DE SAFE EJECTION; MODELING OF EJECTION; AIR PILOT SAFETY AB A pilot is ejected from the aircraft. The equations modeling this process are written and solved analytically. Recommendations are given for the safe ejection on the basis of the above analysis. Suggestions am made concerning the choice of the optimal parameters for the safe ejection. C1 USAF,ARMSTRONG LAB,WRIGHT PATTERSON AFB,OH 45433. RP RAMM, AG (reprint author), KANSAS STATE UNIV AGR & APPL SCI,DEPT MATH,MANHATTAN,KS 66506, USA. NR 5 TC 1 Z9 1 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0895-7177 J9 MATH COMPUT MODEL JI Math. Comput. Model. PD JUL PY 1994 VL 20 IS 1 BP 95 EP 101 DI 10.1016/0895-7177(94)90221-6 PG 7 WC Computer Science, Interdisciplinary Applications; Computer Science, Software Engineering; Mathematics, Applied SC Computer Science; Mathematics GA NZ980 UT WOS:A1994NZ98000008 ER PT J AU JIRA, JR LARSEN, JM AF JIRA, JR LARSEN, JM TI FATIGUE OF UNIDIRECTIONAL SCS-6/TI-24AL-11NB COMPOSITE CONTAINING A CIRCULAR HOLE SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Article ID CRACK INITIATION; THERMAL FATIGUE; SCS-6 AB Fatigue tests of notched unidirectional titanium aluminide composite, SCS-6/Ti-24Al-11Nb (at. pct), were performed to characterize the failure modes and mechanisms that control the life of this material. Using middle-hole specimens tested over a range of stress levels, fatigue damage was documented by optical photography, elastic compliance measurements, and electrical potential drop measurements. It was found that a few dominant cracks form near the notch root and propagate into the composite matrix. Chemical removal of the matrix material and metallographic sectioning of fatigue specimens examined prior to failure revealed that extensive fiber bridging of the matrix cracks dominated the fatigue life. A detailed description of the failure modes and mechanisms of damage initiating in the vicinity of a circular hole is presented, and the relative roles of crack initiation and crack growth are discussed. RP JIRA, JR (reprint author), USAF,MAT DIRECTORATE,WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433, USA. NR 21 TC 11 Z9 11 U1 0 U2 2 PU MINERALS METALS MATERIALS SOC PI WARRENDALE PA 420 COMMONWEALTH DR, WARRENDALE, PA 15086 SN 1073-5623 J9 METALL MATER TRANS A JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci. PD JUL PY 1994 VL 25 IS 7 BP 1413 EP 1424 DI 10.1007/BF02665474 PG 12 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA NU215 UT WOS:A1994NU21500008 ER PT J AU FABIAN, BG MOTEL, P AF FABIAN, BG MOTEL, P TI RECURRENT ERYTHEMA-NODOSUM IN AN AVIATOR SO MILITARY MEDICINE LA English DT Note AB Erythema nodosum is an uncommon skin eruption frequently associated with underlying infections, systemic diseases, or drug toxicity. We report the case of a 27-year-old aviator with three occurrences of erythema nodosum attributed to streptococcal pharyngitis. We review the causes of erythema nodosum to emphasize the importance of a through investigation to rule out serious underlying disease prior to returning an aviator to flight status. RP FABIAN, BG (reprint author), 81ST MED GRP,301 FISHER ST,SUITE 107,KEESLER AFB,MS 39534, 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 JUL PY 1994 VL 159 IS 7 BP 534 EP 536 PG 3 WC Medicine, General & Internal SC General & Internal Medicine GA PL885 UT WOS:A1994PL88500018 PM 7816231 ER PT J AU CHARLTON, DG BEATTY, MW AF CHARLTON, DG BEATTY, MW TI THE EFFECT OF DENTIN SURFACE MOISTURE ON BOND STRENGTH TO DENTIN BONDING AGENTS SO OPERATIVE DENTISTRY LA English DT Article AB This in vitro study compares the mean shear bond strengths of two dentin bonding agents to dry and to moist human dentin. The occlusal surfaces of 60 extracted human molars were ground to produce flat dentin surfaces. The teeth were divided into four groups of 15 specimens each. For Scotchbond Multi-Purpose dentin bonding agent, the teeth were etched, rinsed, and then either blot-ted with gauze, which left the dentin moist, or dried with compressed air. The primer and adhesive were then applied, and composite cylinders were bonded to the teeth. For Optibond, the teeth were again either blotted with gauze or dried with air. The primer and dual-activated adhesive were applied, and composite cylinders were bonded to the teeth. After storage in room-temperature distilled water for 48 hours, the specimens were thermocycled. Shear bond strength testing was performed at 1 week. Analysis using two-sample t-tests found no significant difference for either product in bond strengths to moist and to dry dentin (P > 0.05). This study indicated that for some current-generation dentin bonding agents, the presence of moisture on dentin surfaces does not compromise short-term bond strength. RP CHARLTON, DG (reprint author), USAF,ARMSTRONG LAB,AEROSP MED DIRECTORATE,DIV CLIN SCI,MAT EVALUAT SECT,BROOKS AFB,TX 78235, USA. OI Beatty, Mark/0000-0001-5836-1026 NR 0 TC 15 Z9 15 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 JUL-AUG PY 1994 VL 19 IS 4 BP 154 EP 158 PG 5 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA NX114 UT WOS:A1994NX11400007 PM 9028235 ER PT J AU DAVIS, R AF DAVIS, R TI MORE ON BASES, LINERS, AND VARNISHES SO OPERATIVE DENTISTRY LA English DT Letter RP DAVIS, R (reprint author), USAF,KEESLER AFB,MS 39534, 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 JUL-AUG PY 1994 VL 19 IS 4 BP 159 EP 159 PG 1 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA NX114 UT WOS:A1994NX11400008 ER PT J AU BURNS, TJ ROGERS, SK RUCK, DW OXLEY, ME AF BURNS, TJ ROGERS, SK RUCK, DW OXLEY, ME TI DISCRETE, SPATIOTEMPORAL, WAVELET MULTIRESOLUTION ANALYSIS METHOD FOR COMPUTING OPTICAL-FLOW SO OPTICAL ENGINEERING LA English DT Article DE ADAPTIVE WAVELET TRANSFORMS; WAVELET MULTIRESOLUTION ANALYSIS FAST WAVELET TRANSFORM; OPTICAL FLOW; IMAGE PROCESSING ID MOTION AB A wavelet-based system for computing localized velocity fields associated with time-sequential imagery is described. The approach combines the mathematical rigor of the multiresolution wavelet analysis with well-known spatiotemporal frequency flow computation principles. The foundation of the approach consists of a unique, nonhomogeneous multiresolution wavelet filter bank designed to extract moving objects in a 3-D image sequence based on their location, size, and speed. The filter bank is generated by an unconventional 3-D subband coding scheme that generates 20 orientation-tuned filters at each spatial and temporal resolution. The frequency responses of the wavelet filter bank are combined using a least-squares method to assign a velocity vector to each spatial location in an image sequence. Several examples are provided to demonstrate the flow computation abilities of the wavelet vector motion sensor. RP BURNS, TJ (reprint author), USAF,INST TECHNOL,ENG,WRIGHT PATTERSON AFB,OH 45433, USA. NR 27 TC 17 Z9 18 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 JUL PY 1994 VL 33 IS 7 BP 2236 EP 2247 DI 10.1117/12.172250 PG 12 WC Optics SC Optics GA NX463 UT WOS:A1994NX46300019 ER PT J AU HARRINGTON, PM WELSH, BM AF HARRINGTON, PM WELSH, BM TI FREQUENCY-DOMAIN ANALYSIS OF AN ADAPTIVE OPTICAL-SYSTEMS TEMPORAL RESPONSE SO OPTICAL ENGINEERING LA English DT Article DE ATMOSPHERIC OPTICS; ADAPTIVE OPTICS; IMAGING AB Although analyses general enough to account for both the temporal and spatial characteristics of the adaptive optical system exist, they are complex and require detailed information regarding the wavefront sensor, the deformable mirror, and the control algorithm. This investigation develops a frequency-domain analysis that predicts the performance of an adaptive optical system having an arbitrary temporal response. The analysis takes into account aperture piston and tilt removal and spatial bandwidth limitations due to the wavefront sensor's finite subaperture size and the deformable mirror's finite actuator spacing. The unique aspect of this model is the relative ease with which performance characteristics of different spatial and temporal system response functions can be investigated. C1 USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,IT ENG,WRIGHT PATTERSON AFB,OH 45433. RP HARRINGTON, PM (reprint author), WRIGHT LAB,101 W EGLIN BLD,SUITE 152,EGLIN AFB,FL 32542, USA. NR 14 TC 5 Z9 5 U1 0 U2 1 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 JUL PY 1994 VL 33 IS 7 BP 2336 EP 2342 DI 10.1117/12.172895 PG 7 WC Optics SC Optics GA NX463 UT WOS:A1994NX46300031 ER PT J AU BLICK, DW WEATHERSBY, FR BROWN, GC MURPHY, MR AF BLICK, DW WEATHERSBY, FR BROWN, GC MURPHY, MR TI BEHAVIORAL TOXICITY OF ANTICHOLINESTERASES IN PRIMATES - EFFECTS OF DAILY REPEATED SOMAN EXPOSURE SO PHARMACOLOGY BIOCHEMISTRY AND BEHAVIOR LA English DT Article DE ORGANOPHOSPHATES; CHRONIC EXPOSURE; MACAQUE; TRACKING PERFORMANCE ID ACETYLCHOLINE; INHIBITION; PATHOLOGY; DIAZEPAM; AGENTS; BRAIN; GABA AB The effects of repeated daily exposure to soman, an organophosphate nerve agent, on the performance of a well-learned, compensatory tracking task were tested in rhesus monkeys. The ED(50) daily exposure required to produce a performance decrement on or before the fifth daily exposure (0.97 mu g/kg) was about 40% of the acute dose required to produce a similar performance decrement. After repeated, low-dose exposures, performance decrements appeared when serum cholinesterase (ChE) activity was inhibited 85-90% Acute exposures that produced similar performance effects were associated with lower levels of ChE inhibition (65-70%), suggesting that repeated daily exposure may lead to the development of a tolerance (physiological or behavioral) to low levels of ChE activity. C1 SYST RES LABS INC,DIV ARVIN CALSPAN,DAYTON,OH 45440. USAF,DIV DIRECTED ENERGY,OCCUPAT & ENVIRONM HLTH DIRECTORATE,ARMSTRONG LAB,BROOKS AFB,TX 78235. NR 33 TC 7 Z9 7 U1 0 U2 0 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 JUL PY 1994 VL 48 IS 3 BP 643 EP 649 DI 10.1016/0091-3057(94)90326-3 PG 7 WC Behavioral Sciences; Neurosciences; Pharmacology & Pharmacy SC Behavioral Sciences; Neurosciences & Neurology; Pharmacology & Pharmacy GA NT943 UT WOS:A1994NT94300012 PM 7938117 ER PT J AU SUTHERLAND, B CAMPBELL, J AF SUTHERLAND, B CAMPBELL, J TI CLASSICAL SOLITONS FOR A ONE-DIMENSIONAL MANY-BODY SYSTEM WITH INVERSE-SQUARE INTERACTION SO PHYSICAL REVIEW B LA English DT Article AB We investigate solitons in the one-dimensional classical many-body system of particles interacting by an inverse-square pair potential. We use a combination of numerical results for finite systems, and exact results for the continuum limit, to deduce properties of solitons in the thermodynamic limit. Two remarkable conjectures are supported by these results, and the correspondence with the exact results for the quantum system is established. C1 00-ALC-TIWM,HILL AFB,UT 84056. RP SUTHERLAND, B (reprint author), UNIV UTAH,DEPT PHYS,SALT LAKE CITY,UT 84112, USA. NR 16 TC 8 Z9 8 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 JUL 1 PY 1994 VL 50 IS 2 BP 888 EP 896 DI 10.1103/PhysRevB.50.888 PG 9 WC Physics, Condensed Matter SC Physics GA NX637 UT WOS:A1994NX63700028 ER PT J AU SMITH, DK AF SMITH, DK TI SCAPHOLUNATE INTEROSSEOUS LIGAMENT OF THE WRIST - MR APPEARANCES IN ASYMPTOMATIC VOLUNTEERS AND ARTHROGRAPHICALLY NORMAL WRISTS SO RADIOLOGY LA English DT Article DE LIGAMENTS, INJURIES; LIGAMENTS, MR; WRIST, INJURIES; WRIST, MR ID PAIN; LOCATION; SITE AB PURPOSE: To determine if the carpal scapholunate ligament (SLL) can be consistently visualized with commercial magnetic resonance (MR) imaging techniques and to establish the normal range of MR appearances of the SLL as a basis for comparison with SLL tears. MATERIALS AND METHODS: MR imaging helped identify and characterize the appearance of the SLL in 80 wrists with presumably normal SLLs (54 wrists in 27 asymptomatic volunteers and 26 patients with normal arthrograms). A dual-echo, gradient-echo technique was used. RESULTS: The SLL was visible in all 80 wrists and was seen on an average of almost four sections. It was Delta-shaped in 72 wrists and linear in eight; there was absent signal intensity in 63% or intermediate signal intensity traversing all or part of the SLL in 37%. Distribution and extent of hyaline cartilage signal intensity at the insertion sites into the scaphoid and lunate bones were variable but related to the location within the SLL. CONCLUSION: The SLL can be consistently identified, but the normal variation in the MR appearance of the lunotriquetral ligament must be appreciated when evaluating wrists with suspected SLL tears. RP SMITH, DK (reprint author), WILFORD HALL USAF MED CTR,DEPT RADIOL,PSRD,2200 BERQUIST DR,SUITE 1,LACKLAND AFB,TX 78236, USA. NR 24 TC 48 Z9 50 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 JUL PY 1994 VL 192 IS 1 BP 217 EP 221 PG 5 WC Radiology, Nuclear Medicine & Medical Imaging SC Radiology, Nuclear Medicine & Medical Imaging GA NT031 UT WOS:A1994NT03100039 PM 8208941 ER PT J AU MALAKONDAIAH, G NICHOLAS, T AF MALAKONDAIAH, G NICHOLAS, T TI ON THE INCREASE IN YOUNG MODULUS OF TI-24AL-11NB ALLOY AS A RESULT OF HOLD TIME DURING LOW-CYCLE FATIGUE AT 650 DEGREES-C SO SCRIPTA METALLURGICA ET MATERIALIA LA English DT Article RP MALAKONDAIAH, G (reprint author), WRIGHT LAB,MLLN,WRIGHT PATTERSON AFB,OH 45433, USA. NR 5 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 0956-716X J9 SCRIPTA METALL MATER JI Scr. Metall. Materialia PD JUL 1 PY 1994 VL 31 IS 1 BP 9 EP 14 DI 10.1016/0956-716X(94)90086-8 PG 6 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA NH236 UT WOS:A1994NH23600003 ER PT J AU LIOU, JJ HUANG, CI AF LIOU, JJ HUANG, CI TI BASE AND COLLECTOR CURRENTS OF PRE-BURN-IN AND POST-BURN-IN ALGAAS/GAAS HETEROJUNCTION BIPOLAR-TRANSISTORS SO SOLID-STATE ELECTRONICS LA English DT Article ID MODEL AB The base and collector currents (I(B) and I(C)) of the pre- and post-burn-in Al-GaAs/GaAs heterojunction bipolar transistor (HBT) are studied. It is shown experimentally that the burn-in test gives rise to a larger I(B) but does not alter I(C) notably. An empirical model which can explain such trends is also developed. The model suggests that the increased I(B) in the post-burn-in HBT results from an increase in the space-charge region recombination current and a decrease in both the surface and base bulk recombination currents. Such occurrences can be attributed to the recombination/thermal enhanced diffusion of defects from GaAs surface and bulk to dislocations near the hetero-interface. C1 WRIGHT LAB,SOLID STATE ELECTR DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RP LIOU, JJ (reprint author), UNIV CENT FLORIDA,DEPT ELECT & COMP ENGN,ORLANDO,FL 32816, USA. NR 10 TC 10 Z9 10 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0038-1101 J9 SOLID STATE ELECTRON JI Solid-State Electron. PD JUL PY 1994 VL 37 IS 7 BP 1349 EP 1352 DI 10.1016/0038-1101(94)90190-2 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied; Physics, Condensed Matter SC Engineering; Physics GA NH007 UT WOS:A1994NH00700002 ER PT J AU KLINK, BK THURMAN, RT WITTPENN, GP LAUERMAN, WC CAIN, JE AF KLINK, BK THURMAN, RT WITTPENN, GP LAUERMAN, WC CAIN, JE TI MUSCLE FLAP CLOSURE FOR SALVAGE OF COMPLEX BACK WOUNDS SO SPINE LA English DT Article DE COMPLEX BACK WOUNDS; EXPOSED HARDWARE; MUSCLE FLAPS AB Study Design. The use of muscle flaps for closing complex thoracolumbar and lumbar spine wounds was studied retrospectively. Five patients in whom traditional, conservative treatment modalities did not work underwent a variety of muscle flap closures with successful healing. Objectives. Patients with complicated back wounds ranging from exposed hardware to post-traumatic defects were treated initially with conservative treatments. The authors evaluated the efficacy of applying techniques and knowledge gained from complex lower extremity wound coverage of back wounds. Summary of Background Data. Six muscle transfer procedures were performed on five patients. All patients were closed with local muscle flaps using the trapezius and latissimus dorsi muscles. Methods. Success was defined as a closed stable wound that needed no future surgery nor allowed the primary defect to heal before hardware removal. There was no evidence of chronic infection. Surgical hardware was salvaged in one of three patients. Results. All were successfully closed and have been followed up to 30 months without evidence of recurrence. Conclusions. The cases presented illustrate the usefulness of rotation flaps when there is an extensive soft tissue defect that has exposed neural, osseous, and foreign structures. The use of local transposition muscle flaps as an adjunct in closing complex back wounds has been very successful in our experience. Although recurrent infection may occur, this technique has facilitated the establishment of a soft tissue envelope to achieve short- and long-term wound healing. RP THURMAN, RT (reprint author), WILFORD HALL USAF MED CTR,DEPT PLAST & RECONSTRUCT SURG,PSSP,2200 BERGQUIST DR,SUITE 1,LACKLAND AFB,TX 78236, USA. NR 0 TC 29 Z9 30 U1 0 U2 0 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 0362-2436 J9 SPINE JI SPINE PD JUL 1 PY 1994 VL 19 IS 13 BP 1467 EP 1470 DI 10.1097/00007632-199407000-00008 PG 4 WC Clinical Neurology; Orthopedics SC Neurosciences & Neurology; Orthopedics GA NX023 UT WOS:A1994NX02300008 PM 7939976 ER PT J AU MARIT, GB DODD, DE GEORGE, ME VINEGAR, A AF MARIT, GB DODD, DE GEORGE, ME VINEGAR, A TI HEPATOTOXICITY IN GUINEA-PIGS FOLLOWING ACUTE INHALATION EXPOSURE TO 1,1-DICHLORO-2,2,2-TRIFLUOROETHANE SO TOXICOLOGIC PATHOLOGY LA English DT Article DE HALOTHANE; ISOCITRATE DEHYDROGENASE; LIVER; ALANINE AMINOTRANSFERASE; ASPARTATE AMINOTRANSFERASE AB Groups of 10 male Hartley guinea pigs were exposed to 3.0, 2.0, 1.0, or 0.1% (v/v) 1,1-Dichloro-2,2,2-trifluoroethane (HCFC-123) or 1.0% (v/v) halothane by inhalation for 4 hr. A sixth group of 10 guinea pigs received only air. All animals were sacrificed 48 hr postexposure. Gross and histopathologic examination of the liver, heart, and kidney and routine hematology and clinical chemistry analyses [including isocitrate dehydrogenase (ICDH)] were done on all guinea pigs. Lesions related to HCFC-123 and halothane exposure were limited to the liver and included centrolobular vacuolar (fatty) change, multifocal random degeneration and necrosis, and centrolobular degeneration and necrosis. These lesions were observed in 90-100% of the exposed animals and were absent in the air-only controls. There was significant individual animal variation in susceptibility to both HCFC-123 and halothane, resulting in a spectrum of histologic lesions and clinical chemistry values within each exposure group. Alanine aminotransferase, aspartate aminotransferase, and ICDH were the most significant predictors of hepatocellular damage. Similarities in the response between halothane and HCFC-123 in this guinea pig model suggests that humans susceptible to halothane-induced hepatitis may be susceptible to HCFC-123 by a common mechanism of toxicity. RP MARIT, GB (reprint author), OL AL HSC OET,ARMSTRONG LAB,DIV TOX HAZARDS,BLDG 79,2856 G ST,WRIGHT PATTERSON AFB,OH 45433, USA. NR 0 TC 22 Z9 22 U1 0 U2 0 PU SOC TOXICOLOGIC PATHOLOGISTS PI LAWRENCE PA 1041 NEW HAMPSHIRE ST PO BOX 368, LAWRENCE, KS 66044 SN 0192-6233 J9 TOXICOL PATHOL JI Toxicol. Pathol. PD JUL-AUG PY 1994 VL 22 IS 4 BP 404 EP 414 PG 11 WC Pathology; Toxicology SC Pathology; Toxicology GA PK265 UT WOS:A1994PK26500006 PM 7817129 ER PT J AU SIMPSON, TB LIU, JM GAVRIELIDES, A KOVANIS, V ALSING, PM AF SIMPSON, TB LIU, JM GAVRIELIDES, A KOVANIS, V ALSING, PM TI PERIOD-DOUBLING ROUTE TO CHAOS IN A SEMICONDUCTOR-LASER SUBJECT TO OPTICAL-INJECTION SO APPLIED PHYSICS LETTERS LA English DT Article ID SIGNAL; INSTABILITIES AB Experimental measurements and a single-mode analysis of a quantum-well laser diode subject to strong optical injection are combined to demonstrate that the diode follows a period-doubling route to chaos. All laser parameters used in this model, including the influence of spontaneous emission noise, were experimentally determined based on the four-wave mixing technique. The transition to chaos can be used to reduce the uncertainty in the value of the linewidth enhancement factor. C1 UNIV CALIF LOS ANGELES,DEPT ELECT ENGN,LOS ANGELES,CA 90024. USAF,PHILLIPS LAB,CTR NONLINEAR OPT,KIRTLAND AFB,NM 87117. RP SIMPSON, TB (reprint author), JAYCOR,POB 84154,SAN DIEGO,CA 92186, USA. NR 12 TC 102 Z9 106 U1 2 U2 14 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 JUN 27 PY 1994 VL 64 IS 26 BP 3539 EP 3541 DI 10.1063/1.111218 PG 3 WC Physics, Applied SC Physics GA NU155 UT WOS:A1994NU15500005 ER PT J AU RYNKIEWICZ, D LIU, LX AF RYNKIEWICZ, D LIU, LX TI HUMAN EHRLICHIOSIS - REPLY SO NEW ENGLAND JOURNAL OF MEDICINE LA English DT Letter C1 BETH ISRAEL HOSP,BOSTON,MA 02215. RP RYNKIEWICZ, D (reprint author), DAVIS MONTHAN AFB,TUCSON,AZ 85707, USA. NR 5 TC 0 Z9 0 U1 0 U2 0 PU MASS MEDICAL SOC PI BOSTON PA 10 SHATTUCK, BOSTON, MA 02115 SN 0028-4793 J9 NEW ENGL J MED JI N. Engl. J. Med. PD JUN 16 PY 1994 VL 330 IS 24 BP 1761 EP 1761 PG 1 WC Medicine, General & Internal SC General & Internal Medicine GA NR109 UT WOS:A1994NR10900030 ER PT J AU SHOWALTER, DE AF SHOWALTER, DE TI THE BROWN PLAGUE - TRAVELS IN LATE WEIMAR AND EARLY NAZI GERMANY - GUERIN,D SO LIBRARY JOURNAL 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 BOWKER MAGAZINE GROUP CAHNERS MAGAZINE DIVISION PI NEW YORK PA 249 W 17TH ST, NEW YORK, NY 10011 SN 0363-0277 J9 LIBR J JI Libr. J. PD JUN 15 PY 1994 VL 119 IS 11 BP 80 EP 81 PG 2 WC Information Science & Library Science SC Information Science & Library Science GA NR058 UT WOS:A1994NR05800113 ER PT J AU CARLSON, JL AF CARLSON, JL TI WALKING CALIFORNIA STATE-PARKS - MCKINNEY,J SO LIBRARY JOURNAL LA English DT Note RP CARLSON, JL (reprint author), VANDENBERG AFB,VANDENBERG,CA, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU BOWKER MAGAZINE GROUP CAHNERS MAGAZINE DIVISION PI NEW YORK PA 249 W 17TH ST, NEW YORK, NY 10011 SN 0363-0277 J9 LIBR J JI Libr. J. PD JUN 15 PY 1994 VL 119 IS 11 BP 86 EP 86 PG 1 WC Information Science & Library Science SC Information Science & Library Science GA NR058 UT WOS:A1994NR05800151 ER PT J AU LOOK, DC FANG, ZQ SIZELOVE, JR AF LOOK, DC FANG, ZQ SIZELOVE, JR TI OBSERVATION OF A METASTABLE DEFECT TRANSITION IN GAAS SO PHYSICAL REVIEW B LA English DT Note ID EL2 DEFECT; ANTISITE; PRESSURE; STATE AB We show that the well-known 0.15-eV donor in bulk GaAs quenches under IR-light illumination and that the quenched (metastable) state has an electronic transition energy about 0.14 eV deeper than the ground state and can be observed by temperature-dependent-resistivity and Hall-effect measurements. The quenched state thermally recovers by an Auger-like process at a rate of r = 2.3X10(-12) nv(n) exp(-0.18/kT). Many of the properties exhibited by this donor are similar to those predicted theoretically for the complex defect As(Ga)-V(As). C1 USAF,WRIGHT AERONAUT LABS,ELRA,SOLID STATE ELECTR DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RP LOOK, DC (reprint author), WRIGHT STATE UNIV,RES CTR,DAYTON,OH 45435, USA. NR 16 TC 8 Z9 8 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 JUN 15 PY 1994 VL 49 IS 23 BP 16757 EP 16760 DI 10.1103/PhysRevB.49.16757 PG 4 WC Physics, Condensed Matter SC Physics GA NT525 UT WOS:A1994NT52500081 ER PT J AU MCCRAE, JE GREGG, MR HENGEHOLD, RL YEO, YK OSTDIEK, PH OHMER, MC SCHUNEMANN, PG POLLAK, TM AF MCCRAE, JE GREGG, MR HENGEHOLD, RL YEO, YK OSTDIEK, PH OHMER, MC SCHUNEMANN, PG POLLAK, TM TI POLARIZED LUMINESCENCE STUDY OF ORDERED NONLINEAR-OPTICAL MATERIAL ZNGEP2 SO APPLIED PHYSICS LETTERS LA English DT Article AB Polarized photoluminescence (PL) and cathodoluminescence studies have been made as a function of excitation laser wavelength or electron beam energy for the ordered nonlinear optical material ZnGeP2 grown by the Bridgman method. The luminescence signal is seen to be strongly polarized. Furthermore, several PL peaks appear on top of one large broad band, and the dominant peak shifts to a higher energy position as the excitation energy increases. This observation can be explained by the transitions from three conduction bands (GAMMA6, GAMMA7, GAMMA7) to acceptor. level one triplet ground state levels which parody the top three valence subbands (GAMMA6, GAMMA7, GAMMA6). This explanation agrees well with the theoretical energy band diagram of this pseudodirect band-gap material. C1 USAF,WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. LOCKHEED SANDERS,NASHUA,NH 03061. RP MCCRAE, JE (reprint author), USAF,INST TECHNOL,WRIGHT PATTERSON AFB,OH 45433, USA. NR 13 TC 11 Z9 11 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 JUN 6 PY 1994 VL 64 IS 23 BP 3142 EP 3144 DI 10.1063/1.111345 PG 3 WC Physics, Applied SC Physics GA NP752 UT WOS:A1994NP75200027 ER PT J AU ROBEY, BL FINK, PK VENKATESAN, S REDFIELD, CL FERGUSON, JW AF ROBEY, BL FINK, PK VENKATESAN, S REDFIELD, CL FERGUSON, JW TI DRAIR ADVISER - A KNOWLEDGE-BASED SYSTEM FOR MATERIAL-DEFICIENCY ANALYSIS SO AI MAGAZINE LA English DT Article AB Southwest Research Institute and the U.S. Air Force Materiel Command designed and developed an automated system for the preparation of deficiency report analysis information reports (DRAIRS). A DRAIR provides Air Force engineers with an analysis of an aircraft item's performance history, including maintenance, supply, and cost. A DRAIR also recommends improvements for a deficient materiel or aircraft part. The successful design, development, and deployment of the DRAIR ADVISER system by applying a combination of knowledge-based system and database management techniques are the subject of this article. C1 SW RES INST,DEPT AVION SUPPORT SYST,SAN ANTONIO,TX 78284. SW RES INST,SOFTWARE ENGN SECT,SAN ANTONIO,TX 78284. SW RES INST,AI SECT,SAN ANTONIO,TX 78284. USAF,OKLAHOMA CITY AIR LOGIST CTR,OKLAHOMA CITY,OK. RP ROBEY, BL (reprint author), SW RES INST,DEPT BIOENGN,SAN ANTONIO,TX 78284, USA. NR 3 TC 0 Z9 0 U1 0 U2 0 PU AMER ASSOC ARTIFICIAL INTELL PI MENLO PK PA 445 BURGESS DRIVE, MENLO PK, CA 94025-3496 SN 0738-4602 J9 AI MAG JI AI Mag. PD SUM PY 1994 VL 15 IS 2 BP 67 EP 82 PG 16 WC Computer Science, Artificial Intelligence SC Computer Science GA NR506 UT WOS:A1994NR50600012 ER PT J AU RIZZETTA, DP AF RIZZETTA, DP TI NUMERICAL-SIMULATION OF TURBULENT CYLINDER JUNCTURE FLOWFIELDS SO AIAA JOURNAL LA English DT Article ID NAVIER-STOKES EQUATIONS; HORSESHOE VORTEX; 2-EQUATION MODEL; FLOWS; JUNCTION AB Steady high-Reynolds-number subsonic and supersonic flowfields about a circular cylinder mounted upright on a flat plate were simulated numerically by integration of the time-dependent three-dimensional compressible mass-averaged Navier-Stokes equations. Effects of turbulence were represented by a two-equation (k-epsilon) closure model that included a generalized formulation and low-Reynolds-number terms. For the supersonic case, the turbulence equations incorporated a compressibility correction. Grid mesh step-size studies were performed to assess resolution requirements of the solutions. Comparison is made with experimental data in terms of static pressure and total pressure loss coefficients, velocity distributions, and surface limiting streamline patterns. The effect of the compressibility correction is also examined. RP RIZZETTA, DP (reprint author), WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433, USA. NR 38 TC 16 Z9 16 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 JUN PY 1994 VL 32 IS 6 BP 1113 EP 1119 DI 10.2514/3.12109 PG 7 WC Engineering, Aerospace SC Engineering GA NQ331 UT WOS:A1994NQ33100001 ER PT J AU SCHMISSEUR, JD DOLLING, DS AF SCHMISSEUR, JD DOLLING, DS TI FLUCTUATING WALL PRESSURES NEAR SEPARATION IN HIGHLY SWEPT TURBULENT INTERACTIONS SO AIAA JOURNAL LA English DT Article ID COMPRESSION RAMP INTERACTIONS; BOUNDARY-LAYER INTERACTIONS; MACH-5 AB Fluctuating wall pressures have been measured in Mach 5 interactions generated by sharp, unswept fins at angles of attack of 16 to 28 deg. The results show that rms pressure distributions, like the mean, can be collapsed in conical coordinates. The wall pressure signal near separation is intermittent and is qualitatively similar to that measured in unswept interactions and other swept flows. However, the dominant separation shock frequencies in the swept flows are up to an order of magnitude higher than those in unswept interactions under identical incoming flow conditions. In light of the present observations, it appears that an earlier remark, by Gilson and Dolling, that separation is characterized by a ''shuddering compression system, in contrast to a translating separation shock'' is erroneous due to a combination of weak shock strength and inadequate spatial resolution. Furthermore, although the maximum rms pressure near separation increases with increasing interaction strength, as in swept compression ramp flows, comparison of data from the two now types indicates that the appropriate correlating parameter is the interaction sweepback angle. C1 UNIV TEXAS,CTR AEROMECH RES,DEPT AEROSP ENGN & ENGN MECH,AUSTIN,TX 78712. RP SCHMISSEUR, JD (reprint author), WRIGHT LAB,DEPT AEROMECH,EXPTL FACILITIES RES BRANCH,WRIGHT PATTERSON AIR FORCE BASE,DAYTON,OH 45433, USA. NR 19 TC 3 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 JUN PY 1994 VL 32 IS 6 BP 1151 EP 1157 DI 10.2514/3.12114 PG 7 WC Engineering, Aerospace SC Engineering GA NQ331 UT WOS:A1994NQ33100006 ER PT J AU MILLER, JA JUMPER, EJ AF MILLER, JA JUMPER, EJ TI ROLE OF MIXING IN THE CHEMICAL OXYGEN-IODINE LASER REACTIONS SO AIAA JOURNAL LA English DT Article ID DISSOCIATION AB The thin shear-layer equations are solved for a two-dimensional parallel jet of molecular iodine 12, in an electronically excited, singlet-delta oxygen freestream, O2(1DELTA), in an effort to better understand the influence of mixing on the dissociation of 12. Comparisons of one-dimensional premixed cases with corresponding two-dimensional jet-mixed cases of varying jet velocity ratios (and therefore mixing rates) indicate that, counter to common belief, imperfect mixing, which results in initial regions of high 12 concentrations, can lead to faster dissociation. Although a single jet geometry is used in the study, examination of species concentration profiles gives some insight into the rationale for designing jet-mixing schemes, in terms of diffusion depths for ground state and excited species, and jet heights and spacing. Such insights may help to better understand now systems in which reactions between excited O2 and I2 are of prime importance, as they are in the chemical oxygen-iodine laser. C1 UNIV NOTRE DAME,HESSERT CTR AEROSP RES,DEPT AERONAUT & ASTRONAUT,NOTRE DAME,IN 46556. RP MILLER, JA (reprint author), USAF,INST TECHNOL,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433, USA. RI Jumper, Eric/A-9856-2013 NR 24 TC 5 Z9 6 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 JUN PY 1994 VL 32 IS 6 BP 1228 EP 1233 DI 10.2514/3.12124 PG 6 WC Engineering, Aerospace SC Engineering GA NQ331 UT WOS:A1994NQ33100016 ER PT J AU HIGGS, JB CHARLESWORTH, R ROSIER, KD SMITH, D AF HIGGS, JB CHARLESWORTH, R ROSIER, KD SMITH, D TI QUANTITATING EROSION AREA AND JOINT SPACE IN RHEUMATOID HAND RADIOGRAPHS SO ARTHRITIS AND RHEUMATISM LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. UNIFORMED SERV UNIV HLTH SCI,BETHESDA,MD 20814. 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 JUN PY 1994 VL 37 IS 6 SU S BP R13 EP R13 PG 1 WC Rheumatology SC Rheumatology GA NP830 UT WOS:A1994NP83000035 ER PT J AU ZHANG, Q SOON, WH BALIUNAS, SL LOCKWOOD, GW SKIFF, BA RADICK, RR AF ZHANG, Q SOON, WH BALIUNAS, SL LOCKWOOD, GW SKIFF, BA RADICK, RR TI A METHOD OF DETERMINING POSSIBLE BRIGHTNESS VARIATIONS OF THE SUN IN PAST CENTURIES FROM OBSERVATIONS OF SOLAR-TYPE STARS SO ASTROPHYSICAL JOURNAL LA English DT Article DE STAR, ACTIVITY; STAR, LATE-TYPE; SUN, ACTIVITY; SUN, SOLAR-TERRESTRIAL RELATIONS ID MAIN-SEQUENCE STARS; IRRADIANCE VARIATIONS; SURFACE-TEMPERATURE; MAUNDER MINIMUM; LUMINOSITY; EMISSION; VARIABILITY; REGRESSION; CONVECTION; CYCLE AB Observations of the Sun and a number of stars with mass and age close to the Sun show that changes in magnetic activity and brightness are directly correlated over an activity cycle. The ratio of the two correlated changes shows considerable scatter. If we assume that the scatter represents variability of one solar-type star at different epochs, the aggregate data may represent the range of variation of the Sun over centuries. We illustrate a technique of inferring possible brightness variations of the Sun from a sample of solar-type stars. The observed scatter of the ratio of all 10 solar-type stars in our sample (stars with 0.55 less than or similar (B-Y) less than or similar 1.2 and mean level of chromospheric activity R(HK)' less than or similar -4.75 in the Lockwood et al. 1992 sample) plus the Sun yields a possible increase of 0.2%-0.6% in solar brightness as magnetic activity has increased from the Maunder Minimum (ca. A.D. 1660-1710) to the decade of the 1980s. The limited sample of solar-type stars will need to be extended in order to improve the range of the estimate provided. C1 LOWELL OBSERV,FLAGSTAFF,AZ 86001. USAF,PHILLIPS LAB,SOLAR RES BRANCH,SUNSPOT,NM 88349. RP ZHANG, Q (reprint author), HARVARD SMITHSONIAN CTR ASTROPHYS,60 GARDEN ST,CAMBRIDGE,MA 02138, USA. OI Zhang, Qizhou/0000-0003-2384-6589 NR 29 TC 64 Z9 66 U1 0 U2 3 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD JUN 1 PY 1994 VL 427 IS 2 BP L111 EP L114 DI 10.1086/187377 PN 2 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA NN740 UT WOS:A1994NN74000012 ER PT J AU PREVIC, FH AF PREVIC, FH TI INFERRING THE VISUAL REFERENCE SO BEHAVIORAL AND BRAIN SCIENCES LA English DT Discussion ID SPATIAL ORIENTATION; INDUCED MOTION; VECTION RP PREVIC, FH (reprint author), USAF,ARMSTRONG LAB,CREW SYST DIRECTORATE,DIV CREW TECHNOL,2504 D DR,BROOKS AFB,TX 78235, USA. NR 17 TC 4 Z9 4 U1 0 U2 1 PU CAMBRIDGE UNIV PRESS PI NEW YORK PA 40 WEST 20TH STREET, NEW YORK, NY 10011-4211 SN 0140-525X J9 BEHAV BRAIN SCI JI Behav. Brain Sci. PD JUN PY 1994 VL 17 IS 2 BP 324 EP 325 PG 2 WC Psychology, Biological; Behavioral Sciences; Neurosciences SC Psychology; Behavioral Sciences; Neurosciences & Neurology GA NR754 UT WOS:A1994NR75400078 ER PT J AU MORROW, WR SMITH, VC EHLER, WJ VANDELLEN, AF MULLINS, CE AF MORROW, WR SMITH, VC EHLER, WJ VANDELLEN, AF MULLINS, CE TI BALLOON ANGIOPLASTY WITH STENT IMPLANTATION IN EXPERIMENTAL COARCTATION OF THE AORTA SO CIRCULATION LA English DT Article DE COARCTATION; AORTA; ANEURYSM; STENTS ID INTRALUMINAL STENTS; NATIVE COARCTATION; DILATION AB Background Balloon angioplasty of coarctation of the aorta is an effective method of treatment but is complicated by tearing of the aortic intima, formation of aneurysms, and restenosis. Stent placement at the time of balloon dilation could prevent restenosis and could also prevent progression of intimal tears to aneurysms. The purpose of this study was to evaluate the feasibility of balloon dilation and implantation of balloon-expandable stents in an experimental model of coarctation and to examine the effect of stent placement at the site of surgically created stenosis. Methods and Results Coarctation of the aorta was surgically produced in 11 juvenile swine. Simultaneous coarctation angioplasty and stent implantation was performed in 10 animals 34+/-7.8 days after surgery. Repeat catheterization was performed 59+/-6 days after stent implantation. Five animals underwent reexpansion of stents with subsequent follow-up catheterization. Aortic specimens were examined by light microscopy and scanning electron microscopy. Coarctation angioplasty with stent implantation was successful in all, with an increase in coarctation diameter from 46+/-8.5% to 90+/-12.2% of proximal aortic diameter (P=.0001). Systolic pressure gradient decreased from 32+/-19.8 to 0.5+/-2.8 mm Hg (P<.001). All stents were patent at follow-up catheterization, with no evidence of intraluminal thrombosis. Reexpansion in five animals increased the stent diameter from a mean of 77.4+/-12.1% to 93+/-11.0% of proximal aortic diameter (P=.02). Gross examination of aortic specimens demonstrated formation of neointima over the stent wherever the stent struts were in contact with the aortic wall. The stent occupied a subintimal position and produced minimal compression of the underlying media. Medial compression was noted immediately beneath stent struts, but there was no evidence of intimal or medial dissection. Conclusions Balloon angioplasty with simultaneous implantation of balloon-expandable stents is effective in relieving aortic obstruction in experimental coarctation. Reexpansion of the rigid stent can be performed in an area of surgical aortotomy and coarctation without significant intimal or medial injury. Stent implantation may be useful in preventing restenosis and aneurysm formation after angioplasty of coarctation. C1 WAYNE STATE UNIV,DEPT PEDIAT,DIV PEDIAT CARDIOL,DETROIT,MI 48202. WILFORD HALL USAF MED CTR,SAN ANTONIO,TX. BAYLOR COLL MED,DEPT PEDIAT,LILLIE FRANK ABERCROMBIE SECT PEDIAT CARDIOL,HOUSTON,TX 77030. TEXAS CHILDRENS HOSP,HOUSTON,TX. NR 14 TC 62 Z9 66 U1 0 U2 1 PU AMER HEART ASSOC PI DALLAS PA 7272 GREENVILLE AVENUE, DALLAS, TX 75231-4596 SN 0009-7322 J9 CIRCULATION JI Circulation PD JUN PY 1994 VL 89 IS 6 BP 2677 EP 2683 PG 7 WC Cardiac & Cardiovascular Systems; Peripheral Vascular Disease SC Cardiovascular System & Cardiology GA NQ830 UT WOS:A1994NQ83000032 PM 8205681 ER PT J AU NISHINO, SF SPAIN, JC PETTIGREW, CA AF NISHINO, SF SPAIN, JC PETTIGREW, CA TI BIODEGRADATION OF CHLOROBENZENE BY INDIGENOUS BACTERIA SO ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY LA English DT Article DE BIODEGRADATION; CHLOROBENZENE; BIOREMEDIATION; BIOREACTOR ID ACTIVATED-SLUDGE UNIT; PSEUDOMONAS SP; ORGANIC-COMPOUNDS; MICROBIAL-DEGRADATION; CONTAMINATED AQUIFER; XENOBIOTIC COMPOUNDS; DEGRADING BACTERIUM; SUBSURFACE BACTERIA; CATABOLIC ACTIVITY; OIL-SPILL AB Soil and ground water from four sites chronically contaminated with chlorobenzenes were examined to determine whether indigenous bacteria could degrade the contaminants and whether the addition of specific chlorobenzene-degrading bacteria enhanced the degradation rate. At each site, chlorobenzene-degrading bacteria were readily isolated from chlorobenzene-contaminated wells, whereas similar samples from noncontaminated wells yielded no chlorobenzene-degrading bacteria. Isolates were tested for growth on a variety of substrates. At a site contaminated with several solvents, a bioreactor was inoculated with the chlorobenzene-degrading Pseudomonas sp. strain JS150. Contaminated water was pumped through this bioreactor and a control bioreactor that had been colonized by indigenous microorganisms. The contaminants were removed from both bioreactors; however, JS150 could not be recovered from the inoculated bioreactor after three weeks of operation. A follow-up lab study using ground water from the contaminated site confirmed the field results. We conclude that chlorobenzene contamination of soil causes the development of indigenous degradative populations that have a competitive advantage over inoculated strains. The mechanism and time course of this acclimation are poorly understood and require additional study. RP SPAIN, JC (reprint author), USAF,AL,EQOL,139 BARNES DR,TYNDALL AFB,FL 32403, USA. NR 51 TC 12 Z9 12 U1 0 U2 6 PU SETAC PRESS PI PENSACOLA PA 1010 NORTH 12TH AVE, PENSACOLA, FL 32501-3370 SN 0730-7268 J9 ENVIRON TOXICOL CHEM JI Environ. Toxicol. Chem. PD JUN PY 1994 VL 13 IS 6 BP 871 EP 877 PG 7 WC Environmental Sciences; Toxicology SC Environmental Sciences & Ecology; Toxicology GA NN343 UT WOS:A1994NN34300005 ER PT J AU BRIER, KL TORNOW, JJ AF BRIER, KL TORNOW, JJ TI TEAM EFFORT, COOPERATION ASSISTS IN DEVELOPMENT OF PHARMACOECONOMIC CENTER SO HOSPITAL FORMULARY LA English DT Letter RP BRIER, KL (reprint author), USAF,BIOMED SCI LORPS,WASHINGTON,DC 20330, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ADVANSTAR COMMUNICATIONS PI DULUTH PA 131 W FIRST ST, DULUTH, MN 55802 SN 0098-6909 J9 HOSP FORMUL PD JUN PY 1994 VL 29 IS 6 BP 444 EP & PG 0 WC Pharmacology & Pharmacy SC Pharmacology & Pharmacy GA NT023 UT WOS:A1994NT02300009 ER PT J AU NEVILLE, KJ BISSON, RU FRENCH, J BOLL, PA STORM, WF AF NEVILLE, KJ BISSON, RU FRENCH, J BOLL, PA STORM, WF TI SUBJECTIVE FATIGUE OF C-141 AIRCREWS DURING OPERATION-DESERT-STORM SO HUMAN FACTORS LA English DT Article ID SLEEP-DEPRIVATION; PERFORMANCE; NAPS AB Airlift crews were exposed to extended work periods, reduced sleep periods, night work, and circadian dysrhythmia caused by shift work and time-zone crossings during Operations Desert Shield and Desert Storm. This research reveals the extent to which severe subjective fatigue was experienced by the crews during Operation Desert Storm. In addition, through the evaluation of long-term and short-term work and sleep histories, this research shows that recent sleep and flight histories are correlated with high fatigue levels. Furthermore, we found a tendency for fatigue to correspond with pilot error. We recommend that the training of personnel involved in long-duration operations include fatigue management strategies and, further, that work policies and environments be designed to take into account the importance of regular and restorative sleep when unusual duty hours are required. RP NEVILLE, KJ (reprint author), USAF,ARMSTRONG LAB,SUSTAINED OPERAT BRANCH,CFTO,2504 GILLINGHAM DR,SUITE 1,BROOKS AFB,TX 78235, USA. NR 35 TC 27 Z9 27 U1 0 U2 1 PU HUMAN FACTORS SOC PI SANTA MONICA PA BOX 1369, SANTA MONICA, CA 90406 SN 0018-7208 J9 HUM FACTORS JI Hum. Factors PD JUN PY 1994 VL 36 IS 2 BP 339 EP 349 PG 11 WC Behavioral Sciences; Engineering, Industrial; Ergonomics; Psychology, Applied; Psychology SC Behavioral Sciences; Engineering; Psychology GA NZ351 UT WOS:A1994NZ35100013 PM 8070797 ER PT J AU ADLER, TR AF ADLER, TR TI THE INNOVATION PROCESS - INTERPRETING CUSTOMER REQUIREMENTS SO IEEE AEROSPACE AND ELECTRONIC SYSTEMS MAGAZINE LA English DT Article AB In this article we argue that the interpreter role serves an important function in the innovation of new products and processes. In our survey of over 1,000 United States Air Force engineers and project managers, we found that translating customer requirements into specification and statement of work form is one of the most difficult tasks to do in a program office. In analyzing the reasons for this difficulty, we address possible concerns about the nature of the requirement's definition process. RP ADLER, TR (reprint author), USAF,SCH SYST & LOGIST,WRIGHT PATTERSON AFB,OH 45433, USA. NR 7 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 0885-8985 J9 IEEE AERO EL SYS MAG JI IEEE Aerosp. Electron. Syst. Mag. PD JUN PY 1994 VL 9 IS 6 BP 17 EP 25 DI 10.1109/62.286788 PG 9 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA NQ024 UT WOS:A1994NQ02400004 ER PT J AU PETROPOULOS, PG AF PETROPOULOS, PG TI PHASE ERROR CONTROL FOR FD TD METHODS OF 2ND AND 4TH-ORDER ACCURACY SO IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION LA English DT Note DE FINITE-DIFFERENCE TIME-DOMAIN METHOD; PHASE ERROR ID FINITE AB For FD-TD methods we determine the spatial resolution of the discretized domain in terms of the total computation time and the desired phase error. It is shown that the spatial step should vary as DELTAx is similar to g [e(phi)/t(c)]1/s in order to maintain a prescribed phase error level e(phi) throughout the computation time t(c), where s (=2 or 4) is the spatial order of accuracy of the scheme and g is a geometric factor. Significantly, we show that the rule of thumb of using 10-20 points per wavelength to determine the spatial cell size for the standard scheme is not optimal. Our results are verified by numerical simulations in two dimensions with the Yee scheme and a new fourth-order accurate FD-TD scheme. RP PETROPOULOS, PG (reprint author), USAF,ARMSTRONG LAB,OES,BROOKS AFB,TX 78235, USA. RI Petropoulos, Peter/M-6495-2013; OI Petropoulos, Peter/0000-0003-1532-8861 NR 13 TC 67 Z9 67 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 0018-926X J9 IEEE T ANTENN PROPAG JI IEEE Trans. Antennas Propag. PD JUN PY 1994 VL 42 IS 6 BP 859 EP 862 DI 10.1109/8.301709 PG 4 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA NY452 UT WOS:A1994NY45200014 ER PT J AU FABER, P AF FABER, P TI STORM OVER IRAQ - AIR POWER AND THE GULF-WAR - HALLION,RP SO JOURNAL OF AMERICAN HISTORY LA English DT Book Review RP FABER, P (reprint author), USAF,SCH ADV AIRPOWER STUDIES,MAXWELL AFB,AL, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU ORGANIZATION AMER HISTORIANS PI BLOOMINGTON PA 112 N BRYAN ST, BLOOMINGTON, IN 47408 SN 0021-8723 J9 J AM HIST JI J. Am. Hist. PD JUN PY 1994 VL 81 IS 1 BP 353 EP 354 DI 10.2307/2081152 PG 2 WC History SC History GA NT042 UT WOS:A1994NT04200165 ER PT J AU HAIGLER, BE NISHINO, SF SPAIN, JC AF HAIGLER, BE NISHINO, SF SPAIN, JC TI BIODEGRADATION OF 4-METHYL-5-NITROCATECHOL BY PSEUDOMONAS SP STRAIN DNT SO JOURNAL OF BACTERIOLOGY LA English DT Note ID PARA-NITROPHENOL; CATABOLISM; 2,4-DINITROTOLUENE; DEGRADATION AB Pseudomonas sp. strain DNT degrades 2,4-dinitrotoluene (DNT) by a dioxygenase attack at the 4,5 position with concomitant removal of the nitro group to yield 4-methyl-5-nitrocatechol (MNC). Here we describe the mechanism of removal of the nitro group from MNC and subsequent reactions leading to ring fission. Washed suspensions of DNT-grown cells oxidized MNC and 2,4,5-trihydroxytoluene (THT). Extracts prepared from DNT-induced cells catalyzed the disappearance of MNC in the presence of oxygen and NADPH. Partially purified MNC oxygenase oxidized MNC in a reaction requiring 1 mol of NADPH and 1 mol of oxygen per mol of substrate. The enzyme converted MNC to 2-hydroxy-5-methylquinone (HMQ), which was identified by gas chromatography-mass spectrometry. HMQ was also detected transiently in culture fluids of cells grown on DNT. A quinone reductase was partially purified and shown to convert HMQ to THT in a reaction requiring NADH. A partially purified THT oxygenase catalyzed ring fission of THT and accumulation of a compound tentatively identified as 3-hydroxy-5-(1-formylethylidene)-2-furanone. Preliminary results indicate that this compound is an artifact of the isolation procedure and suggest that 2,4-dihydroxy-5-methyl-6-oxo-2,4-hexadienoic acid is the actual ring fission product. C1 ARMSTRONG LAB,EQCOL,TYNDALL AFB,FL 32403. NR 22 TC 43 Z9 43 U1 0 U2 4 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 JUN PY 1994 VL 176 IS 11 BP 3433 EP 3437 PG 5 WC Microbiology SC Microbiology GA NN851 UT WOS:A1994NN85100047 PM 8195105 ER PT J AU AUCHUS, RJ MASTORAKOS, G FRIEDMAN, TC CHROUSOS, GP AF AUCHUS, RJ MASTORAKOS, G FRIEDMAN, TC CHROUSOS, GP TI CORTICOTROPIN-RELEASING HORMONE PRODUCTION BY A SMALL-CELL CARCINOMA IN A PATIENT WITH ACM-DEPENDENT CUSHINGS-SYNDROME SO JOURNAL OF ENDOCRINOLOGICAL INVESTIGATION LA English DT Note DE CORTICOTROPIN-RELEASING HORMONE; ECTOPIC HORMONES; CUSHINGS SYNDROME; SMALL-CELL LUNG CANCER; HYPERCORTISOLEMIA; IMMUNOCYTOCHEMISTRY; ADRENOCORTICOTROPIC HORMONE ID DOSE DEXAMETHASONE SUPPRESSION; DIFFERENTIAL-DIAGNOSIS; ECTOPIC PRODUCTION; ADRENOCORTICOTROPIN; SECRETION; CORTISOL; DISEASE; ACTH; PLASMA; TUMOR AB We describe a patient with Cushing's syndrome and metastatic small cell lung cancer. The plasma ACTH concentrations were markedly elevated (91.6 pmol/L), and the AM cortisol did not suppress by >50% overnight after administration of 8 mg dexamethasone, both consistent with the ectopic ACTH syndrome. Immunohistochemical studies of a single metastatic tumor specimen, however, demonstrated an absence of ACTH and yet an abundance of corticotropin-releasing hormone (CRH). In addition, radioimmunoassay of the patient's plasma demonstrated persistently elevated CRH concentrations. The majority of the plasma CRH immunoreactivity exhibited the same chromatographic mobility as synthetic r/h CRH (1-41) on HPLC. Failure to evaluate the tumor tissue for the presence of ACTH and/or CRH would have led to the erroneous conclusion that this patient's Cushing's syndrome resulted from paraneoplastic ACTH production. We conclude that immunoassay of plasma for both ACTH and CRH and, perhaps, immunostaining of tumor samples are required to distinguish between the ectopic ACTH and CRH syndromes. C1 UNIV TEXAS,HLTH SCI CTR,DIV ENDOCRINOL,SAN ANTONIO,TX. NICHHD,DEV ENDOCRINOL BRANCH,BETHESDA,MD. NICHHD,DEV NEUROBIOL LAB,BETHESDA,MD. RP AUCHUS, RJ (reprint author), WILFORD HALL USAF MED CTR,PSME,DEPT ENDOCRINOL & METAB,2200 BERGQUIST DR STE 1,LACKLAND AFB,TX 78236, USA. NR 28 TC 12 Z9 12 U1 0 U2 0 PU EDITRICE KURTIS S R L PI MILANO PA VIA LUIGI ZOJA, 30-20153 MILANO, ITALY SN 0391-4097 J9 J ENDOCRINOL INVEST JI J. Endocrinol. Invest. PD JUN PY 1994 VL 17 IS 6 BP 447 EP 452 PG 6 WC Endocrinology & Metabolism SC Endocrinology & Metabolism GA NU988 UT WOS:A1994NU98800010 PM 7930390 ER PT J AU RUSNAK, JM BUTZIN, C MCGLASSON, D BLATT, SP AF RUSNAK, JM BUTZIN, C MCGLASSON, D BLATT, SP TI FALSE-POSITIVE RAPID PLASMA REAGIN TESTS IN HUMAN-IMMUNODEFICIENCY-VIRUS INFECTION AND RELATIONSHIP TO ANTICARDIOLIPIN ANTIBODY AND SERUM IMMUNOGLOBULIN LEVELS SO JOURNAL OF INFECTIOUS DISEASES LA English DT Note ID SECONDARY SYPHILIS; HIV-INFECTION; PATIENT AB The incidence of biologic false-positive rapid plasma reagin (RPR) tests may be increased in human immunodeficiency virus (HIV) infection; however, injecting drug use has not been excluded as the cause. Review of 3371 periodic syphilis serology results from 1077 HIV-seropositive patients in the United States Air Force HIV Natural History Study between January 1986 and June 1992 revealed a cumulative biologic false-positive RPR rate of 1%. Most (6/9) were transient low-titer results associated with a recent acute infectious process. False-positive RPR tests did not appear to correlate with anticardiolipin antibody levels or serum IgG or IgA levels, which are increased in HIV infection. Although not statistically significant, there was a trend toward higher IgM levels in patients with biologic false-positive tests. Thus, the incidence of false-positive RPR in an HIV-infected population with a low risk of injecting drug use is similar to that in the general population, and the mechanism may correlate with elevated serum IgM levels. C1 WILFORD HALL USAF MED CTR,CLIN INVEST FACIL,LACKLAND AFB,TX. RP RUSNAK, JM (reprint author), WILFORD HALL USAF MED CTR,PSMI-H,DEPT INFECT DIS,SUITE 1,2200 BERGQUIST DR,LACKLAND AFB,TX 78236, USA. NR 15 TC 28 Z9 29 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 JUN PY 1994 VL 169 IS 6 BP 1356 EP 1359 PG 4 WC Immunology; Infectious Diseases; Microbiology SC Immunology; Infectious Diseases; Microbiology GA NX991 UT WOS:A1994NX99100027 PM 8195616 ER PT J AU KREKEL, G HUTTINGER, KJ HOFFMAN, WP SILVER, DS AF KREKEL, G HUTTINGER, KJ HOFFMAN, WP SILVER, DS TI THE RELEVANCE OF THE SURFACE-STRUCTURE AND SURFACE-CHEMISTRY OF CARBON-FIBERS IN THEIR ADHESION TO HIGH-TEMPERATURE THERMOPLASTICS .1. SURFACE-STRUCTURE AND MORPHOLOGY SO JOURNAL OF MATERIALS SCIENCE LA English DT Article ID FIBER SURFACES; ELECTROCHEMICAL TREATMENT; INFRARED-SPECTROSCOPY; LIQUID INTERFACE; NITRIC-ACID; MICROSCOPY; GRAPHITE; COMPOSITES; OXIDATION; OXYGEN AB The surface structure and morphology of several high strength polyacrylonitrile (PAN) based carbon fibres was studied with the scanning electron microscope (SEM) on the micrometre scale and the scanning tunnelling microscope (STM) down to the atomic scale. In addition, active surface area measurements were made to determine the number of bonding sites/unit area. Prior to the observations, the surfaces of some of the samples were subjected to either the commercial surface treatment or to oxidation in air or ozone in our laboratory. The roughness and number of bonding sites on each fibre surface was determined. These values will be correlated with the mechanical properties of composites made with these fibres and thermoplastic polymers in Part III of this study. C1 PHILLIPS LAB,OLAC PL-RKFE,EDWARDS AFB,EDWARDS AFB,CA 93523. RP KREKEL, G (reprint author), UNIV KARLSRUHE,INST CHEM TECH,KAISERSTR 12,W-7500 KARLSRUHE,GERMANY. NR 93 TC 39 Z9 40 U1 1 U2 8 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 JUN 1 PY 1994 VL 29 IS 11 BP 2968 EP 2980 DI 10.1007/BF01117609 PG 13 WC Materials Science, Multidisciplinary SC Materials Science GA NU783 UT WOS:A1994NU78300022 ER PT J AU HARRISON, MJ MORGELLO, S POST, KD AF HARRISON, MJ MORGELLO, S POST, KD TI EPITHELIAL CYSTIC LESIONS OF THE SELLAR AND PARASELLAR REGION - A CONTINUUM OF ECTODERMAL DERIVATIVES SO JOURNAL OF NEUROSURGERY LA English DT Article DE RATHKES CLEFT CYST; CRANIOPHARYNGIOMA; EPITHELIAL CYST; EPIDERMOID CYST; DERMOID CYST; EMBRYOLOGY ID RATHKES CLEFT CYSTS; EPIDERMOID TUMORS; NEUROEPITHELIAL CYSTS; PATHOLOGICAL FEATURES; PITUITARY-GLAND; DERMOID CYSTS; CRANIOPHARYNGIOMAS; LIGHT; DIFFERENTIATION; CLASSIFICATION AB Cystic epithelial lesions of the sellar and parasellar region are classified on the basis of histology and location into Rathke's cleft cysts, epithelial cysts, epidermoid cysts, dermoid cysts, and craniopharyngiomas. A retrospective review of the clinical presentation, radiological findings, and histology was performed on 19 such lesions, and a survey of the literature pertinent to the classification, clinical presentation, and embryology of these lesions was conducted. Presentation was nonspecific and not predictive of histology. Imaging studies were generally useful in distinguishing these tumors, with the exception of Rathke's cleft cysts, suprasellar epidermoid cysts, and craniopharyngiomas, which frequently could not be differentiated. On microscopic examination, most lesions fit into distinct categories; however, overlap was common among all and some could not be definitively categorized by histological criteria. Evidence supportive of an ectodermal ancestry for sellar and parasellar epithelial-lined cystic lesions is presented. Based on the current findings and a review of the literature, it is suggested that these lesions represent a continuum of ectodermally derived cystic epithelial lesions. C1 MT SINAI HOSP,DEPT NEUROSURG,NEW YORK,NY 10029. MT SINAI HOSP,DIV NEUROPATHOL,NEW YORK,NY 10029. CUNY MT SINAI SCH MED,NEW YORK,NY 10029. RP HARRISON, MJ (reprint author), DAVID GRAND US AF MED CTR,DIV NEUROSURG,101 BODIN CIRCLE,TRAVIS AFB,CA 94535, USA. NR 52 TC 91 Z9 93 U1 0 U2 1 PU AMER ASSOC NEUROLOGICAL SURGEONS PI CHARLOTTESVILLE PA UNIV VIRGINIA, 1224 WEST MAIN ST, STE 450, CHARLOTTESVILLE, VA 22903 SN 0022-3085 J9 J NEUROSURG JI J. Neurosurg. PD JUN PY 1994 VL 80 IS 6 BP 1018 EP 1025 DI 10.3171/jns.1994.80.6.1018 PG 8 WC Clinical Neurology; Surgery SC Neurosciences & Neurology; Surgery GA NN146 UT WOS:A1994NN14600009 PM 8189257 ER PT J AU BERRY, RL EDWARDS, RC PAXTON, MC AF BERRY, RL EDWARDS, RC PAXTON, MC TI NASAL AUGMENTATION USING THE MANDIBULAR CORONOID AS AN AUTOGENOUS GRAFT - REPORT OF CASE SO JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY LA English DT Note ID SPLIT CALVARIAL GRAFTS; ONLAY BONE-GRAFTS; ENDOCHONDRAL BONE; FOLLOW-UP; RECONSTRUCTION; RHINOPLASTY; CARTILAGE; FIXATION; RESORPTION; IMPLANTS C1 USAF,DAVID GRANT MED CTR,SGDO,DEPT ORAL & MAXILLOFACIAL SURG,TRAVIS AFB,CA 94535. NR 67 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 0278-2391 J9 J ORAL MAXIL SURG JI J. Oral Maxillofac. Surg. PD JUN PY 1994 VL 52 IS 6 BP 633 EP 638 DI 10.1016/0278-2391(94)90106-6 PG 6 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA NP081 UT WOS:A1994NP08100023 PM 8189305 ER PT J AU SLAWSKI, DP AF SLAWSKI, DP TI DEEP VENOUS THROMBOSIS COMPLICATING RUPTURE OF THE MEDIAL HEAD OF THE GASTROCNEMIUS-MUSCLE SO JOURNAL OF ORTHOPAEDIC TRAUMA LA English DT Note DE GASTROCNEMIUS; RUPTURE; TENNIS LEG; THROMBOPHLEBITIS; DEEP VENOUS THROMBOSIS AB Rupture of the medial head of the gastrocnemius muscle (''tennis leg'') is an affliction generally associated with athletic activity. The diagnosis is made by careful history and physical examination. Although its findings are characteristic, previous reports have documented misdiagnosis of this lesion as thrombophlebitis with resultant unnecessary anticoagulation and hemorrhagic complications. An unusual case is presented in which ipsilateral thrombophlebitis developed in a preexisting obvious case of tennis leg. This is believed to be the first such case reported in the literature and illustrates the possibility of both conditions coexisting in the same extremity. C1 USAF,MED CTR,DEPT ORTHOPED SURG,SCOTT AFB,IL 62225. NR 0 TC 10 Z9 10 U1 0 U2 0 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 0890-5339 J9 J ORTHOP TRAUMA JI J. Orthop. Trauma PD JUN PY 1994 VL 8 IS 3 BP 263 EP 264 DI 10.1097/00005131-199406000-00016 PG 2 WC Orthopedics; Sport Sciences SC Orthopedics; Sport Sciences GA NM397 UT WOS:A1994NM39700016 PM 8027900 ER PT J AU YASZEMSKI, MJ WHITE, AA AF YASZEMSKI, MJ WHITE, AA TI THE DISKECTOMY MEMBRANE (NERVE ROOT FIBROVASCULAR MEMBRANE) - ITS ANATOMIC DESCRIPTION AND ITS SURGICAL IMPORTANCE SO JOURNAL OF SPINAL DISORDERS LA English DT Article DE DISKECTOMY; LUMBAR SPINE; HERNIATED NUCLEUS PULPOSUS; ANATOMY; SURGICAL TECHNIQUE; NERVE ROOT AB The positive identification and protection of the nerve root is crucial prior to addressing the disc during lumbar discectomy. We report here our observation that there exists a membrane which lies immediately posterior to the annulus fibrosus at the level of the disc and connects to the dura of the nerve root at that level. This is a constant anatomic finding during the approach to the disc, and we refer to it as the ''discectomy membrane''. We found this tissue present at all lumbar levels of five fresh frozen cadaver spines. Its consistency varied from thin wisps of nearly transparent tissue to tissue strong enough to tether the nerve root laterally. RP YASZEMSKI, MJ (reprint author), WILFORD HALL USAF MED CTR,PSSB,DEPT ORTHOPAED SURG,2200 BERGQUIST DR,SUITE 1,LACKLAND AFB,TX 78236, USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 0895-0385 J9 J SPINAL DISORD JI J. Spinal Disord. PD JUN PY 1994 VL 7 IS 3 BP 230 EP 235 PG 6 WC Clinical Neurology; Orthopedics SC Neurosciences & Neurology; Orthopedics GA NN293 UT WOS:A1994NN29300006 PM 7919646 ER PT J AU GRAVES, JS ALLEN, RE RICHERT, BA AF GRAVES, JS ALLEN, RE RICHERT, BA TI CHEMICAL AND STRUCTURAL EFFECTS ON THE ELECTRONIC STATES OF (HG, TL, PB, BI)-BASED CUPRATE SUPERCONDUCTORS SO JOURNAL OF SUPERCONDUCTIVITY LA English DT Article DE HG; HIGH-T(C) ID HIGH-TEMPERATURE SUPERCONDUCTORS AB The electronic energy bands have been calculated for the new single-layer and triple-layer Hg-based superconductors, HgBa2CuO4 and HgBa2Ca2Cu3Oy, for the analogous Tl- and Bi-based materials, and for hypothetical Pb-based materials. As one moves across the last row of the periodic table, from Hg to Bi, s- and p-derived bands pass below the Fermi energy, to influence hole doping of the copper oxide planes and transport in the other layers of the material. The dispersion of these bands is significantly affected by the crystal structure. The calculations were performed with a simple chemical model. C1 USAF ACAD,DEPT PHYS,COLORADO SPRINGS,CO 80840. RP GRAVES, JS (reprint author), TEXAS A&M UNIV,DEPT PHYS,COLLEGE STN,TX 77843, USA. NR 10 TC 0 Z9 0 U1 0 U2 0 PU PLENUM PUBL CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 SN 0896-1107 J9 J SUPERCOND JI J. Supercond. PD JUN PY 1994 VL 7 IS 3 BP 621 EP 622 DI 10.1007/BF00728471 PG 2 WC Physics, Applied; Physics, Condensed Matter SC Physics GA NM852 UT WOS:A1994NM85200024 ER PT J AU MOSS, MT SEGAL, HM AF MOSS, MT SEGAL, HM TI THE EMISSIONS AND DISPERSION MODELING SYSTEM (EDMS) - ITS DEVELOPMENT AND APPLICATION AT AIRPORTS AND AIRBASES SO JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION LA English DT Article AB A new complex source microcomputer model has been developed for use at civil airports and Air Force bases. This paper describes both the key features of this model and its application in evaluating the air quality impact of new construction projects at three airports: one in the United States and two in Canada. The single EDMS model replaces the numerous models previously required to assess the air quality impact of pollution sources at airports. EDMS also employs a commercial data base to reduce the time and manpower required to accurately assess and document the air quality impact of airfield operations. On July 20, 1993, the U.S. Environmental Protection Agency (EPA) issued the final rule (Federal Register, 7/20/93, page 38816) to add new models to the Guideline on Air Quality Models. At that time EDMS was incorporated into the Guideline as an Appendix A model. C1 FAA,OFF ENVIRONM & ENERGY,WASHINGTON,DC 20591. RP MOSS, MT (reprint author), USAF,HQ AFCESA,RAVS,TYNDALL AFB,FL 32403, USA. NR 12 TC 1 Z9 1 U1 0 U2 1 PU AIR & WASTE MANAGEMENT ASSOC PI PITTSBURGH PA PO BOX 2861, PITTSBURGH, PA 15230 SN 1047-3289 J9 J AIR WASTE MANAGE JI J. Air Waste Manage. Assoc. PD JUN PY 1994 VL 44 IS 6 BP 787 EP 790 PG 4 WC Engineering, Environmental; Environmental Sciences; Meteorology & Atmospheric Sciences SC Engineering; Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA NR323 UT WOS:A1994NR32300004 ER PT J AU ALDRICH, JR AF ALDRICH, JR TI EXPECTED VALUE ESTIMATES OF THE LONG-TERM LIABILITY FROM LANDFILLING HAZARDOUS-WASTE SO JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION LA English DT Article AB Justifying pollution prevention investment often hinges upon accurately determining the costs of the various waste treatment alternatives. One intangible cost for hazardous waste disposal is the potential long-term liability associated with landfilling - the option often found to be least expensive. A microeconomic model was developed which used a liability factor to predict the long-term liability costs inherent in landfilling hazardous waste as follows: P(total) = P(landfill) + f(L)P(destruction). The model estimates the liability costs through an expected value analysis which was developed f mm the microeconomic theories of consumer surplus and externalities. The model was then applied as it would be in the case of justifying pollution prevention investment. The assumptions used in the application were: (1) landfills, like all manmade structures, will eventually fail, (2) primary landfill liner failure will be defined as landfill failure, and (3) given the limited potential for waste to be released from landfills, the key element in predicting future liability costs will be the cost of waste destruction. The liability factor allows future liability costs to be estimated on a per unit basis, independently of both landfill and destruction technology prices, and negates many of the potential confounding tactors such as price variations caused by regional difference, technological advances, and capabilities in price negotiations. In addition, the liability factor holds obvious benefit for the landfill industry in that it is predictive of long-term costs and can be used in pricing their services. RP ALDRICH, JR (reprint author), USAF,INST TECHNOL,ENV,2950 P ST,WRIGHT PATTERSON AFB,OH 45433, USA. NR 2 TC 3 Z9 3 U1 1 U2 2 PU AIR & WASTE MANAGEMENT ASSOC PI PITTSBURGH PA PO BOX 2861, PITTSBURGH, PA 15230 SN 1047-3289 J9 J AIR WASTE MANAGE JI J. Air Waste Manage. Assoc. PD JUN PY 1994 VL 44 IS 6 BP 800 EP 803 PG 4 WC Engineering, Environmental; Environmental Sciences; Meteorology & Atmospheric Sciences SC Engineering; Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA NR323 UT WOS:A1994NR32300006 ER PT J AU HAY, RS AF HAY, RS TI KINETICS AND DEFORMATION DURING THE REACTION OF YTTRIUM-ALUMINUM PEROVSKITE AND ALUMINA TO YTTRIUM-ALUMINUM-GARNET SO JOURNAL OF THE AMERICAN CERAMIC SOCIETY LA English DT Article ID GRAIN-BOUNDARIES; HIGH-TEMPERATURE; CREEP; DISLOCATIONS; DIFFUSION; BEHAVIOR; SAPPHIRE; CERAMICS; SYSTEM; SLIP AB The kinetics of the reaction of directionally solidified eutectics of yttrium-aluminum perovskite and alumina to yttrium-aluminum garnet were measured between 1150-degrees and 1550-degrees-C for times as long as 20000 min. Deformation from the 11 vol% increase was observed. Samples were characterized by optical microscopy, SEM, and extensively by TEM. Surface displacements from self-stress relaxation were measured by atomic force microscopy. YAG nucleated at yttrium silicate impurities as 20-nm-thick plates. For nucleation to occur, the 20-GPa self-stress must relax. YAG growth was parabolic with a 550-kJ/mol activation energy. Self-stress relaxation caused creep polygonization in YAG, forming short-circuit diffusion pathways that may have increased the growth rate. The maximum flow stress in YAG was estimated to be 1-3 GPa and decreased as the reaction progressed. The inferred flow stresses should not have significantly decreased the reaction driving force. Eventually, off-axis creep of alumina dominated self-stress relaxation because its flow stress was much lower than that of YAG. RP HAY, RS (reprint author), WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433, USA. NR 57 TC 25 Z9 25 U1 3 U2 7 PU AMER CERAMIC SOC PI WESTERVILLE PA 735 CERAMIC PLACE, PO BOX 6136, WESTERVILLE, OH 43081-6136 SN 0002-7820 J9 J AM CERAM SOC JI J. Am. Ceram. Soc. PD JUN PY 1994 VL 77 IS 6 BP 1473 EP 1485 DI 10.1111/j.1151-2916.1994.tb09745.x PG 13 WC Materials Science, Ceramics SC Materials Science GA NT179 UT WOS:A1994NT17900009 ER PT J AU MCCULLEY, JA MYERS, EF AF MCCULLEY, JA MYERS, EF TI DIETITIANS TAKE THE LEAD IN DIAGNOSIS-RELATED GROUP CODING SO JOURNAL OF THE AMERICAN DIETETIC ASSOCIATION LA English DT Article C1 USAF,MED CTR SCOTT SGW,SCOTT AFB,IL 62225. RP MCCULLEY, JA (reprint author), JEWISH HOSP ST LOUIS,DEPT FOOD & NUTR,216 S KINGSHIGHWAY,ST LOUIS,MO 63110, USA. NR 10 TC 2 Z9 2 U1 0 U2 0 PU AMER DIETETIC ASSN PI CHICAGO PA 216 W JACKSON BLVD #800, CHICAGO, IL 60606-6995 SN 0002-8223 J9 J AM DIET ASSOC JI J. Am. Diet. Assoc. PD JUN PY 1994 VL 94 IS 6 BP 650 EP 651 DI 10.1016/0002-8223(94)90164-3 PG 2 WC Nutrition & Dietetics SC Nutrition & Dietetics GA NQ249 UT WOS:A1994NQ24900015 PM 8195555 ER PT J AU SHOWALTER, DE AF SHOWALTER, DE TI NUREMBERG - INFAMY ON TRIAL - PERSICO,J SO LIBRARY JOURNAL 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 BOWKER MAGAZINE GROUP CAHNERS MAGAZINE DIVISION PI NEW YORK PA 249 W 17TH ST, NEW YORK, NY 10011 SN 0363-0277 J9 LIBR J JI Libr. J. PD JUN 1 PY 1994 VL 119 IS 10 BP 132 EP 132 PG 1 WC Information Science & Library Science SC Information Science & Library Science GA NN211 UT WOS:A1994NN21100129 ER PT J AU WARD, WE AF WARD, WE TI INCOMING PRESIDENTS MESSAGE SO LUBRICATION ENGINEERING LA English DT Editorial Material RP WARD, WE (reprint author), WRIGHT LAB,MAT DIRECTORATE,DIV NONMET MAT,WRIGHT PATTERSON AFB,OH, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC TRIBOLOGISTS & LUBRICATION ENGINEERS PI PARK RIDGE PA 838 BUSSE HIGHWAY, PARK RIDGE, IL 60068 SN 0024-7154 J9 LUBR ENG JI Lubric. Eng. PD JUN PY 1994 VL 50 IS 6 BP 434 EP 435 PG 2 WC Engineering, Mechanical SC Engineering GA NQ866 UT WOS:A1994NQ86600002 ER PT J AU SMITH, PR GRAVES, JA RHODES, CG AF SMITH, PR GRAVES, JA RHODES, CG TI COMPARISON OF ORTHORHOMBIC AND ALPHA-2 TITANIUM ALUMINIDES AS MATRICES FOR CONTINUOUS SIC-REINFORCED COMPOSITES SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Article ID THERMAL FATIGUE; MICROSTRUCTURE; TEMPERATURE; SCS-6; TI3AL AB The attributes of an orthorhombic Ti aluminide alloy, Ti-21Al-22Nb (at. pct), and an alpha-two Ti aluminide alloy, Ti-24Al-11 Nb (at. pct), for use as a matrix with continuous SiC (SCS-6) fiber reinforcement have been compared. Foil-fiber-foil processing was used to produce both unreinforced (''neat'') and unidirectional ''SCS-6'' reinforced panels. Microstructure of the Ti-24Al-11 Nb matrix consisted of ordered Ti3Al (alpha2) + disordered beta (beta), while the Ti-21Al-22Nb matrix contained three phases: alpha2, ordered beta (beta0), and ordered orthorhombic (O). Fiber/matrix interface reaction zone growth kinetics at 982-degrees-C were examined for each composite system. Although both systems exhibited similar interface reaction products (i.e., mixed Ti carbides, silicides, and Ti-Al carbides), growth kinetics in the alpha2 + beta matrix composite were much more rapid than in the O + beta0 + alpha2 matrix composite. Additionally, interfacial reaction in the alpha2 + beta composite resulted in a relatively large brittle matrix zone, depleted of beta phase, which was not present in the O + beta0 + alpha2 matrix composite. Mechanical property measurements included room and elevated temperature tensile, thermal stability, thermal fatigue, thermomechanical fatigue (TMF), and creep. The three-phase orthorhombic-based alloy outperformed the alpha2 + beta alloy in all of these mechanical behavioral areas, on both an absolute and a specific (i.e., density corrected) basis. C1 USAF, DIV MET & CERAM, MAT BEHAV BRANCH, WRIGHT PATTERSON AFB, OH 45433 USA. WRIGHT LAB, MAT DIRECTORATE, WRIGHT PATTERSON AFB, OH USA. RP ROCKWELL INT CORP, CTR SCI, DEPT MAT SCI, THOUSAND OAKS, CA 91360 USA. NR 36 TC 50 Z9 51 U1 0 U2 3 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1073-5623 EI 1543-1940 J9 METALL MATER TRANS A JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci. PD JUN PY 1994 VL 25 IS 6 BP 1267 EP 1283 DI 10.1007/BF02652301 PG 17 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA NM854 UT WOS:A1994NM85400016 ER PT J AU WATSON, JW AF WATSON, JW TI LEADERSHIP SECRETS OF ATTILA-THE-HUN - ROBERTS,W SO MILITARY LAW REVIEW LA English DT Book Review C1 USAF,JUDGE ADVOCATE GEN DEPT,WASHINGTON,DC 20330. NR 4 TC 0 Z9 0 U1 0 U2 2 PU JUDGE ADVOCATE GENERALS SCHOOL PI CHARLOTTESVILLE PA US ARMY, CHARLOTTESVILLE, VA 22903-1781 SN 0026-4040 J9 MIL LAW REV JI Milit. Law Rev. PD SUM PY 1994 VL 145 BP 211 EP 216 PG 6 WC Law SC Government & Law GA QX644 UT WOS:A1994QX64400012 ER PT J AU DONS, RF SHAKIR, KMM AF DONS, RF SHAKIR, KMM TI CHANGES IN TRIIODOTHYRONINE MARK SEVERE PAIN SYNDROME - A CASE-REPORT SO MILITARY MEDICINE LA English DT Note AB Non-thyroidal illness is classically associated with a low total triiodothyronine (T3) level. Episodes of severe recurrent dental pain unassociated with fever or systemic infection in a patient was marked 2 to 3 weeks later by low T3 levels (56 ng/ml). Other thyroid and metabolic tests were normal. T3 levels returned to normal on resolution of pain. Recurrence of a transient, mild episode of pain was not associated with a low T3 2 weeks after its onset. We suggest that T3 levels may be markers for severe pain and suffering or disturbances responsible for pain and suffering in patients receiving analgesics. RP DONS, RF (reprint author), WILFORD HALL USAF MED CTR,DEPT ENDOCRINOL,LACKLAND AFB,TX 78236, 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 JUN PY 1994 VL 159 IS 6 BP 465 EP 466 PG 2 WC Medicine, General & Internal SC General & Internal Medicine GA PG420 UT WOS:A1994PG42000013 PM 7984308 ER PT J AU BLAKE, DP AF BLAKE, DP TI THE USE OF SYNTHETICS IN CRANIOPLASTY - A CLINICAL REVIEW SO MILITARY MEDICINE LA English DT Note AB Materials used to repair cranial defects have evolved tremendously over the past several decades. Advances in metallurgy, the development of acrylics, and the advent of modern imaging and histologic techniques all have played a role in improving cranioplastic materials. Discussed here is a case report depicting the use of synthetics in cranioplasty, followed by a review of the historical development of these materials. RP BLAKE, DP (reprint author), WILFORD HALL USAF MED CTR,DEPT GEN SURG,LACKLAND AFB,TX 78236, USA. NR 0 TC 9 Z9 9 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 JUN PY 1994 VL 159 IS 6 BP 466 EP 469 PG 4 WC Medicine, General & Internal SC General & Internal Medicine GA PG420 UT WOS:A1994PG42000014 PM 7984309 ER PT J AU BAROHN, RJ JACKSON, CE ROGERS, SJ RIDINGS, LW MCVEY, AL AF BAROHN, RJ JACKSON, CE ROGERS, SJ RIDINGS, LW MCVEY, AL TI PROLONGED PARALYSIS DUE TO NONDEPOLARIZING NEUROMUSCULAR BLOCKING-AGENTS AND CORTICOSTEROIDS SO MUSCLE & NERVE LA English DT Article ID ACUTE HYDROCORTISONE MYOPATHY; VECURONIUM BROMIDE; COMPLICATION; MYOSIN; PHARMACOKINETICS; DISPOSITION; BLOCKADE; FAILURE AB The long-term use of nondepolarizing neuromuscular blocking agents (ND-NMBA) has recently been implicated as a cause of prolonged muscle weakness, although the site of the lesion and the predisposing factors have been unclear. We report 3 patients (age 37-52 years) with acute respiratory insufficiency who developed prolonged weakness following the discontinuation of ND-NMBAs. Two patients also received intravenous corticosteroids. Renal function was normal but hepatic function was impaired in all patients, and all had acidosis. Electrophysiologic studies revealed low amplitude compound motor action potentials, normal sensory studies, and fibrillations. Repetitive stimulation at 2 Hz showed a decremental response in 2 patients. The serum vecuronium level measured in 1 patient 14 days after the drug had been discontinued was 172 ng/mL. A muscle biopsy in this patient showed loss of thick, myosin filaments. The weakness in these patients is due to pathology at both the neuromuscular junction (most likely due to ND-NMBA) and muscle (most likely due to corticosteroids). Hepatic dysfunction and acidosis are contributing risk factors. (C) 1994 John Wiley & Sons, Inc. C1 UNIV TEXAS,HLTH SCI CTR,DEPT MED,DIV NEUROL,SAN ANTONIO,TX 78284. WILFORD HALL USAF MED CTR,DEPT NEUROL,SAN ANTONIO,TX. NR 29 TC 74 Z9 76 U1 0 U2 1 PU JOHN WILEY & SONS INC PI NEW YORK PA 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0148-639X J9 MUSCLE NERVE JI Muscle Nerve PD JUN PY 1994 VL 17 IS 6 BP 647 EP 654 DI 10.1002/mus.880170613 PG 8 WC Clinical Neurology; Neurosciences SC Neurosciences & Neurology GA NN055 UT WOS:A1994NN05500012 PM 7910951 ER PT J AU MCHUGH, PD AF MCHUGH, PD TI THE EUROPEAN-COMMUNITY DIRECTIVE - AN ALTERNATIVE ENVIRONMENTAL-IMPACT ASSESSMENT PROCEDURE SO NATURAL RESOURCES JOURNAL LA English DT Article ID LAW AB This paper addresses a question of direct concern to the United States Air Forces in Europe. An environmental impact assessment (EIA) is required for major Department of Defense actions abroad having significant environmental effects. For about two decades legal scholars have debated the precise procedure federal agencies should follow in analyzing major federal actions having significant environmental impacts overseas. It also examines the similarities and differences between the ''father'' of the EIA legislation, the United States' National Environmental Policy Act (NEPA), and one of its important progeny, the 1985 European Community Directive, which requires member nations to assess the environmental effects of major projects, both private and public. The paper discusses NEPA's policy and its objectives, and explores the international problems associated with its application. It compares the background and procedures of the Directive and the opportunities the Directive provides for public participation. The paper concludes with a discussion of the practical difficulties facing the Department of Defense as it attempts to incorporate appropriate environmental impact assessment procedures into its decisionmaking at overseas installations. RP MCHUGH, PD (reprint author), USAF,WASHINGTON,DC 20330, USA. NR 55 TC 3 Z9 3 U1 0 U2 0 PU UNIV NEW MEXICO PI ALBUQUERQUE PA SCHOOL OF LAW 1117 STANFORD N E, ALBUQUERQUE, NM 87131 SN 0028-0739 J9 NAT RESOUR J JI Nat. Resour. J. PD SUM PY 1994 VL 34 IS 3 BP 589 EP 628 PG 40 WC Environmental Studies; Law SC Environmental Sciences & Ecology; Government & Law GA QF628 UT WOS:A1994QF62800004 ER PT J AU NAGY, PB BLODGETT, M GOLIS, M AF NAGY, PB BLODGETT, M GOLIS, M TI WEEP HOLE INSPECTION BY CIRCUMFERENTIAL CREEPING WAVES SO NDT & E INTERNATIONAL LA English DT Article DE FATIGUE CRACKS; CREEPING WAVES; ULTRASONIC TESTING ID SURFACE-BREAKING CRACK; TRANSMISSION; SCATTERING; REFLECTION AB This paper reports the development of a novel ultrasonic inspection technique that detects radial fatigue cracks on the far side of thin airframe stiffener 'weep' holes. These cracks are located on the upper part of the weep hole (12 o'clock position), away from the lower skin of the wing. Cracks in this position are not readily detectable by conventional ultrasonic inspection techniques, particularly for short cracks. A special technique using circumferential creeping waves was adapted to inspect for these cracks. The conventional creeping wave technique experiences a strong specular reflection from the near surface of the hole that masks the creeping wave signal that arrives later in time. In order to overcome this difficulty, a split-aperture (two-element) transducer was used that resulted in the specular and creeping wave echoes being approximately equal in magnitude. The two separate transducers allowed us to alternate between pulse-echo and pitch-catch modes of operation with a resulting improvement in detection sensitivity. In the case of 0.25-inch-diameter weep holes, optimum sensitivity was calculated to be around 5 MHz. The detection threshold was found to be approximately 0.003 inches and the signal saturated at crack lengths in excess of 0.020 inches. The original paint and surface finish had no substantial adverse effects on the technique's sensitivity. Similarly, changing the weep hole diameter or chamfer conditions did not significantly affect the technique's performance. These results were obtained using specimens with both machined notches and real fatigue cracks. C1 USAF,WRIGHT LAB,DIV MET & CERAM,WRIGHT PATTERSON AFB,OH 45432. ADV QUAL CONCEPTS,COLUMBUS,OH 43214. RP NAGY, PB (reprint author), OHIO STATE UNIV,DEPT WELDING ENGN,COLUMBUS,OH 43210, USA. RI Nagy, Peter/O-5404-2016 OI Nagy, Peter/0000-0001-5715-2409 NR 9 TC 42 Z9 42 U1 0 U2 1 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0963-8695 J9 NDT&E INT JI NDT E Int. PD JUN PY 1994 VL 27 IS 3 BP 131 EP 142 DI 10.1016/0963-8695(94)90604-1 PG 12 WC Materials Science, Characterization & Testing SC Materials Science GA PJ875 UT WOS:A1994PJ87500002 ER PT J AU GRYCEWICZ, TJ AF GRYCEWICZ, TJ TI APPLYING TIME MODULATION TO THE JOINT TRANSFORM CORRELATOR SO OPTICAL ENGINEERING LA English DT Article DE OPTICAL PATTERN RECOGNITION; OPTICAL JOINT TRANSFORM CORRELATOR; BINARY JOINT TRANSFORM CORRELATOR; JOINT TRANSFORM POWER SPECTRUM; IMAGE CORRELATION; TIME MODULATION; FRAME SUBTRACTION; SUPERHETERODYNE IMAGE MIXER ID SPATIAL LIGHT-MODULATOR AB A major limitation on the optical joint transform correlator (JTC) is that the output plane is dominated by unwanted autocorrelation products. A new technique is proposed that uses time modulation and demodulation to separate the correlation components. Time modulation is applied to the JTC inputs, resulting in a time-modulated joint power spectrum. Demodulation of the transform plane separates the self-correlation components from the other terms. When the demodulated signal is the input to the second transform stage in the JTC the result is system peak-to-noise ratio/peak-to-secondary ratio (PNR/PSR) improvement, removal of input plane location constraints, and elimination of detection problems resulting from multiple targets. Two implementations are discussed. Using a general model for sinusoidal modulation, it is shown that amplitude, phase, and polarization modulation of the inputs all result in amplitude modulation of the correlation signals in the transform plane. The general solution is difficult to implement, because it requires temporal demodulation of the joint Fourier signal on a pixel-by-pixel basis. A more practical system results from the case of square-wave modulation, where it is shown that demodulation can be easily implemented through image subtraction using only two to four frames of data. This Fourier plane processing technique has been implemented using a binary JTC (BJTC). Performance improvement of 6 dB over the conventional BJTC is demonstrated through computer simulation and laboratory results. RP GRYCEWICZ, TJ (reprint author), USAF, ROME LAB, BEDFORD, MA 01731 USA. NR 12 TC 18 Z9 18 U1 0 U2 0 PU SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS PI BELLINGHAM PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA SN 0091-3286 EI 1560-2303 J9 OPT ENG JI Opt. Eng. PD JUN PY 1994 VL 33 IS 6 BP 1813 EP 1820 DI 10.1117/12.170729 PG 8 WC Optics SC Optics GA NR248 UT WOS:A1994NR24800011 ER PT J AU CHRISTENSEN, DA ROTGE, J KLEMAS, A LOOS, G MERRIMAN, D AF CHRISTENSEN, DA ROTGE, J KLEMAS, A LOOS, G MERRIMAN, D TI LASER-DIODE COHERENCE LENGTH VARIATION FOR BALANCING FIBER OPTIC INTERFEROMETERS SO OPTICAL ENGINEERING LA English DT Article DE INTERFEROMETRY; FIBER OPTICS; LASER DIODE; COHERENCE AB A visible light (675-nm) laser diode is used as a variable coherence length source to allow the rapid adjustment to equal optical pathlengths of a fiber interferometer. The diode's spectral width, measured for decreasing drive current, changes from less than 0.2 to 16 nm. The corresponding change in coherence length is from 2.3 mm to 28 mum, bridging a significant portion of the gap between a gas laser and a broadband source, The fiber interferometer's air paths are first adjusted with the laser at high drive current, then fine tuned as the current is reduced below threshold. An experimentally observed interferogram confirms the theoretical prediction for fringe visibility at a current near threshold. C1 USAF,PHILLIPS LAB,IMAGING TECHNOL BRANCH,KIRTLAND AFB,NM 87117. ROCKWELL POWER SYST,ALBUQUERQUE,NM 87102. RP CHRISTENSEN, DA (reprint author), UNIV UTAH,DEPT ELECT ENGN,SALT LAKE CITY,UT 84112, USA. NR 8 TC 7 Z9 7 U1 1 U2 1 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 JUN PY 1994 VL 33 IS 6 BP 2034 EP 2038 DI 10.1117/12.169738 PG 5 WC Optics SC Optics GA NR248 UT WOS:A1994NR24800047 ER PT J AU ARRIAGA, MA AF ARRIAGA, MA TI CHOLESTEATOMA IN CHILDREN SO OTOLARYNGOLOGIC CLINICS OF NORTH AMERICA LA English DT Article ID INTACT TYMPANIC MEMBRANE; MIDDLE-EAR; CANAL WALL; CONGENITAL CHOLESTEATOMAS; RECURRENT CHOLESTEATOMA; ACQUIRED CHOLESTEATOMA; SURGICAL-TREATMENT; TYMPANOPLASTY; SURGERY; MANAGEMENT C1 UNIV TEXAS,HLTH SCI CTR,SAN ANTONIO,TX 78284. RP ARRIAGA, MA (reprint author), WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236, USA. NR 51 TC 22 Z9 22 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 JUN PY 1994 VL 27 IS 3 BP 573 EP 591 PG 19 WC Otorhinolaryngology SC Otorhinolaryngology GA NQ287 UT WOS:A1994NQ28700010 PM 8065759 ER PT J AU DIGERONIMO, RJ MAYES, TC AF DIGERONIMO, RJ MAYES, TC TI NEAR-HANGING INJURY IN CHILDHOOD - A LITERATURE-REVIEW AND REPORT OF 3 CASES SO PEDIATRIC EMERGENCY CARE LA English DT Review DE NEAR-HANGING INJURY; STRANGULATION AB Near-hanging injury is not an uncommon occurrence in children. Surprisingly, little discussion of this topic occurs in the pediatric literature. Previous reports note that children who present with an initial pH less than 7.2, apnea or agonal respiration, or who subsequently require mechanical ventilation, either die or survive with severe neurologic residua. We report a series of three pediatric patients aged 12 years or younger who initially presented with a combination of the above morbid criteria, all of whom survived with good neurologic outcomes. Children who suffer significant near-hanging injury should be considered at high risk to develop cerebral edema and therefore should be managed aggressively. Early cardiopulmonary resuscitation in the field is essential to re-establish cerebral blood flow. A good response to initial resuscitation is an important prognostic factor for eventual recovery. After arrival to the emergency department, therapy should include controlled hyperventilation, fluid restriction, and other supportive measures to limit intracranial pressure in high-risk patients. C1 WILFORD HALL USAF MED CTR,DEPT PEDIAT,LACKLAND AFB,TX 78236. NR 0 TC 12 Z9 12 U1 0 U2 0 PU WILLIAMS & WILKINS PI BALTIMORE PA 351 WEST CAMDEN ST, BALTIMORE, MD 21201-2436 SN 0749-5161 J9 PEDIATR EMERG CARE JI Pediatr. Emerg. Care PD JUN PY 1994 VL 10 IS 3 BP 150 EP 156 DI 10.1097/00006565-199406000-00007 PG 7 WC Emergency Medicine; Pediatrics SC Emergency Medicine; Pediatrics GA NR713 UT WOS:A1994NR71300006 PM 8058558 ER PT J AU MICKLEY, GA COBB, BL MASON, PA FARRELL, S AF MICKLEY, GA COBB, BL MASON, PA FARRELL, S TI DISRUPTION OF A PUTATIVE WORKING-MEMORY TASK AND SELECTIVE EXPRESSION OF BRAIN C-FOS FOLLOWING MICROWAVE-INDUCED HYPERTHERMIA SO PHYSIOLOGY & BEHAVIOR LA English DT Article DE AMNESIA; WORKING MEMORY; MICROWAVES; HYPERTHERMIA; RADIOFREQUENCY; RADIATION; OBJECT RECOGNITION; BRAIN TEMPERATURE; STRESS PROTEINS; C-FOS ID RATS; STIMULATION; INDUCTION; PROTEIN; NEURONS; STRESS; MAZE AB To discern the effects of hyperthermia on working memory, we recorded the ability of rats to discriminate between objects following microwave radiation exposure. Memory changes were evaluated by measuring relative exploration time of a familiar vs. a new stimulus object. A subject that extensively reexplores a stimulus with which it has previous experience is presumed to exhibit memory loss associated with that object. Between training and testing, rats were exposed to various doses: of microwave radiation, were sham irradiated, or remained in their home cage. Brain (dural) and rectal temperatures were recorded. To discern brain regions activated or possibly damaged by microwave exposure, we also used immunocytochemistry techniques to identify sites of c-fos protein expression in the brains of several irradiated/sham-irradiated subjects. Rats exposed to > 5 W/kg exhibited hyperthermia when compared to nonirradiated controls. Normothermic control subjects (sham-irradiated rats and rats exposed to 0.1 W/kg) showed a distinct preference for the new object although other microwave-exposed rats (1, 5, 8.5, 9.3, 10 W/kg) did not. Microwave hyperthermia evoked prominent c-fos expression in periventricular strata, hypothalamic nuclei, amygdala, and several areas of the cortex. These data suggest that performance on a putative working memory task may be disrupted by a sufficiently intense microwave-induced hyperthermia. The pattern of expression of the early proto-oncogene c-fos may suggest candidate brain nuclei that mediate the behavioral changes we observed. C1 ARMSTRONG LAB, DIV RADIOFREQUENCY RADIAT, OER, BROOKS AFB, TX 78235 USA. OPERAT TECHNOL CORP, SAN ANTONIO, TX 78229 USA. NR 46 TC 31 Z9 34 U1 1 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0031-9384 J9 PHYSIOL BEHAV JI Physiol. Behav. PD JUN PY 1994 VL 55 IS 6 BP 1029 EP 1038 DI 10.1016/0031-9384(94)90384-0 PG 10 WC Psychology, Biological; Behavioral Sciences SC Psychology; Behavioral Sciences GA NL117 UT WOS:A1994NL11700008 PM 8047568 ER PT J AU HARTZER, RB AF HARTZER, RB TI BUILDING AIR BASES IN THE NEGEV - THE UNITED-STATES-ARMY-CORPS-OF-ENGINEERS IN ISRAEL, 1979-1982 - SCHUBERT,FN SO PUBLIC HISTORIAN LA English DT Book Review RP HARTZER, RB (reprint author), USAF CIVIL ENGN SUPPORT AGCY,TYNDALL AFB,FL, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU UNIV CALIF PRESS PI BERKELEY PA JOURNALS DEPT 2120 BERKELEY WAY, BERKELEY, CA 94720 SN 0272-3433 J9 PUBL HISTORIAN JI Public Hist. PD SUM PY 1994 VL 16 IS 3 BP 76 EP 78 PG 3 WC History SC History GA PC155 UT WOS:A1994PC15500019 ER PT J AU GARSCADDEN, A AF GARSCADDEN, A TI NUCLEATION, GROWTH, AND MORPHOLOGY OF DUST IN PLASMAS SO PURE AND APPLIED CHEMISTRY LA English DT Article; Proceedings Paper CT 11th International Symposium on Plasma Chemistry CY AUG 22-27, 1993 CL LOUGHBOROUGH, ENGLAND SP INT UNION PURE & APPL CHEM, PHYS CHEM DIV, INST ELECT ENGINEERS, ELECT ASSOC, BRIT NATL COMM ELECTROHEAT ID SMALL PARTICLES; CONTAMINATION; DEPOSITION; DISCHARGES AB An account is given of the dust particles appearing in weakly ionized plasmas. The dust is found in many discharges, especially in electronegative gas plasmas under conditions of rf excitation similar to those used in plasma processing of integrated circuits. Measurements have been made of the plasma-trapped dust, interrogated by Mie scattering of laser light. It appears that the rapid early growth is controlled by ion accretion across the surface of the relatively large Debye sheath. The microscopic properties of the dust reveal that the particles are often almost monodispersive in size. Under some conditions, the dust morphology has fractal characteristics and considerations of growth conditions point to the critical role of negative ions and ion-assisted deposition RP GARSCADDEN, A (reprint author), WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433, USA. NR 30 TC 18 Z9 18 U1 0 U2 2 PU BLACKWELL SCIENCE LTD PI OXFORD PA OSNEY MEAD, OXFORD, OXON, ENGLAND OX2 0EL SN 0033-4545 J9 PURE APPL CHEM JI Pure Appl. Chem. PD JUN PY 1994 VL 66 IS 6 BP 1319 EP 1326 DI 10.1351/pac199466061319 PG 8 WC Chemistry, Multidisciplinary SC Chemistry GA NU934 UT WOS:A1994NU93400016 ER PT J AU STONE, WH SAPHIRE, DG HACKLEMAN, SM BRAUN, AM PENNINGTON, P SCHEFFLER, J WIGLE, JC COX, AB AF STONE, WH SAPHIRE, DG HACKLEMAN, SM BRAUN, AM PENNINGTON, P SCHEFFLER, J WIGLE, JC COX, AB TI EFFECT OF RADIATION AND AGE ON IMMUNOGLOBULIN LEVELS IN RHESUS-MONKEYS (MACACA-MULATTA) SO RADIATION RESEARCH LA English DT Article ID NONHUMAN-PRIMATES; IMMUNOLOGICAL RESPONSES; MORTALITY EXPERIENCE; IMMUNE FUNCTION; BOMB SURVIVORS; ENDOMETRIOSIS; IRRADIATION; REACTIVITY; CAPTIVITY AB We report the results of a study on the immunoglobulin levels of rhesus monkeys (Macaca mulatta) in a colony consisting of the survivors of monkeys that received a single whole-body exposure to protons, electrons or X rays between 1964 and 1969. This colony has been maintained to assess the long-term effects of ionizing radiation on astronauts and high-flying pilots. Of the original 358 monkeys that were retained for lifetime studies, 129 (97 irradiated and 32 controls) were available for our study. We found no significant difference between the irradiated and control monkeys in mean levels of IgA, IgG and IgM, irrespective of the radiation treatment. The availability of these aged monkeys provided a unique opportunity to compare their immunoglobulin levels to those of other monkeys of various ages, and thus assess the effect of age on immunoglobulin levels. We found that only the IgA levels increase with age. C1 TRINITY UNIV,DEPT MATH,SAN ANTONIO,TX 78212. WISCONSIN REG PRIMATE RES CTR,MADISON,WI 53715. USAF,AFMC,CTR HUMAN SYST,ALOERT,ARMSTRONG LAB,BROOKS AFB,TX 78235. RP STONE, WH (reprint author), TRINITY UNIV,DEPT BIOL,SAN ANTONIO,TX 78212, USA. FU NCRR NIH HHS [RR04301] NR 48 TC 1 Z9 1 U1 0 U2 0 PU RADIATION RESEARCH SOC PI OAK BROOK PA 2021 SPRING RD, STE 600, OAK BROOK, IL 60521 SN 0033-7587 J9 RADIAT RES JI Radiat. Res. PD JUN PY 1994 VL 138 IS 3 BP 401 EP 408 DI 10.2307/3578689 PG 8 WC Biology; Biophysics; Radiology, Nuclear Medicine & Medical Imaging SC Life Sciences & Biomedicine - Other Topics; Biophysics; Radiology, Nuclear Medicine & Medical Imaging GA NP025 UT WOS:A1994NP02500013 PM 8184015 ER PT J AU KLAUENBERG, BJ VERMULEN, EK AF KLAUENBERG, BJ VERMULEN, EK TI ROLE FOR RISK COMMUNICATION IN CLOSING MILITARY WASTE SITES SO RISK ANALYSIS LA English DT Article; Proceedings Paper CT Conference on the Risk Assessment Paradigm After Ten Years: Policy and Practice Then, Now, and in the Future CY APR 05-08, 1993 CL WRIGHT PATTERSON AFB, OH SP USAF, ARMSTRONG LAB, TOXICOL DIV, USN, NAVAL MED RES INST DETACHMENT, USA, ARMY BIOMED RES & DEV LAB, US EPA, ENVIRONM CRITERIA & ASSESSMENT OFF, NATL RES COUNCIL, COMM TOXICOL DE RISK COMMUNICATION; PROCESS ACTION TEAMS; DEMOCRATIC PROCESS; WASTE SITE AB Lessons learned from environmental and occupational hazard risk management practices over the past 30 years have led the Department of Defense to explore alternative risk management approaches. Policies for cleanup of environmentally hazardous waste sites are undergoing examination and are being reframed. A Demonstration Risk Communication Program is described which incorporates principles that integrate risk-based scientific information as well as community values, perceptions, and needs in a democratic process that includes the public as an active participant from the earliest stages. A strong scientific foundation for assessment and characterization of risk is viewed as necessary but not sufficient; the public's values must be actively integrated into the negotiated criteria. The Demonstration Program uses a model to prepare the participants and to guide them through the process. A five-step process is presented: (1) create risk communications process action team including at least one member of the specific site audience; (2) professionally train participants on team dynamics including interpersonal communication skills; (3) train risk communicators to deliver a cogent presentation of the message to secure a decision acceptable to both the government and the public; (4) identify existing biases, perceptions, and values held by all participants; and (5) develop risk message incorporating science and values. The process action team approach assumes the participants enter into the effort with the goal of improved environment and safeguarded public health. The team approach avoids confrontational or adversarial interactions and focuses on a dialogue from which a negotiated team response develops. Central to the program is the recognition that communication is only effective when the dialogue is two-way. C1 ARMSTRONG LAB,OCCUPAT & ENVIRONM HLTH DIRECTORATE,2402 E DR,BROOKS AFB,TX 78235. ARMSTRONG LAB,OCCUPAT & ENVIRONM HLTH DIRECTORATE,DIV RADIOFREQUENCY RADIAT,BROOKS AFB,TX. NR 38 TC 4 Z9 4 U1 0 U2 4 PU PLENUM PUBL CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 SN 0272-4332 J9 RISK ANAL JI Risk Anal. PD JUN PY 1994 VL 14 IS 3 BP 351 EP 356 DI 10.1111/j.1539-6924.1994.tb00251.x PG 6 WC Public, Environmental & Occupational Health; Mathematics, Interdisciplinary Applications; Social Sciences, Mathematical Methods SC Public, Environmental & Occupational Health; Mathematics; Mathematical Methods In Social Sciences GA NR536 UT WOS:A1994NR53600017 PM 8029507 ER PT J AU GILL, HL HAURIN, DR PHILLIPS, J AF GILL, HL HAURIN, DR PHILLIPS, J TI MOBILITY AND FERTILITY IN THE MILITARY SO SOCIAL SCIENCE QUARTERLY LA English DT Article ID WAGES AB This paper uses a survey of military couples to study the relationship between moves to a new geographical location and the number and timing of births. The analysis finds that each move permanently reduces a woman's wage by 2.8 percent, lowering the cost in forgone earnings of time devoted to child care, and thereby increasing expected completed fertility. Also, because a move depresses a woman's potential current wage, it raises the probability of birth near the time of a move. C1 OHIO STATE UNIV,COLUMBUS,OH 43210. CLARK ATLANTA UNIV,ATLANTA,GA 30314. RP GILL, HL (reprint author), USAF,INST TECHNOL,WRIGHT PATTERSON AFB,OH 45433, USA. NR 13 TC 7 Z9 7 U1 0 U2 0 PU UNIV TEXAS PRESS PI AUSTIN PA BOX 7819, AUSTIN, TX 78713-7819 SN 0038-4941 J9 SOC SCI QUART JI Soc. Sci. Q. PD JUN PY 1994 VL 75 IS 2 BP 340 EP 353 PG 14 WC Social Sciences, Interdisciplinary SC Social Sciences - Other Topics GA NV261 UT WOS:A1994NV26100006 ER PT J AU BLICK, DW MURPHY, MR BROWN, GC YOCHMOWITZ, MG FANTON, JW HARTGRAVES, SL AF BLICK, DW MURPHY, MR BROWN, GC YOCHMOWITZ, MG FANTON, JW HARTGRAVES, SL TI ACUTE BEHAVIORAL TOXICITY OF PYRIDOSTIGMINE OR SOMAN IN PRIMATES SO TOXICOLOGY AND APPLIED PHARMACOLOGY LA English DT Article ID ANTICHOLINESTERASES; PHYSOSTIGMINE; PRETREATMENT; PROTECTION; DIAZEPAM AB Effects of a peripherally active carbamate (pyridostigmine bromide) and a centrally active organophosphate (OP) nerve agent (soman) on performance by rhesus monkeys of a compensatory tracking (primate equilibrium platform, or PEP) task were measured using a balanced Latin-square design to determine the ED50 for pyridostigmine (0.66 mg/kg) and the up-and-down (titration) method to determine the ED50 for soman (2.50 mu g/kg). We concluded that the PEP performance model is a sensitive and reliable indicator of anticholinesterase (anti-ChE) behavioral toxicity. We also found that soman, an irreversible inhibitor of acetylcholinesterase (AChE), is more than 100 times more behaviorally disruptive than the reversible peripheral inhibitor pyridostigmine, as indicated by the difference in ED50 doses expressed in molar terms. Soman's behavioral toxicity is severe at levels of serum cholinesterase inhibition (70-80%) at which pyridostigmine does not significantly affect performance. As a prophylactic treatment for OP agent poisoning, pyridostigmine has a substantial safety factor, since behavioral toxicity becomes significant only at approximately four times the proposed therapeutic dose. (C) 1994 Academic Press, Inc. C1 USAF,ARMSTRONG LAB,DIV DIRECTED ENERGY,BROOKS AFB,TX 78235. USAF,ARMSTRONG LAB,DIV VET SCI,BROOKS AFB,TX 78235. RP BLICK, DW (reprint author), USAF,ARMSTRONG LAB,DIV ARVIN CALSPAN,SYST RES LABS,BROOKS AFB,TX 78235, USA. NR 26 TC 17 Z9 17 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 JUN PY 1994 VL 126 IS 2 BP 311 EP 318 DI 10.1006/taap.1994.1121 PG 8 WC Pharmacology & Pharmacy; Toxicology SC Pharmacology & Pharmacy; Toxicology GA NT258 UT WOS:A1994NT25800014 PM 8209384 ER PT J AU NELSON, AG WOLF, EG LI, B AF NELSON, AG WOLF, EG LI, B TI INFLUENCE OF DELAYED HYPERBARIC OXYGENATION ON RECOVERY FROM MECHANICALLY INDUCED DAMAGE SO UNDERSEA & HYPERBARIC MEDICINE LA English DT Article DE RABBITS; CITRATE SYNTHASE; PHOSPHOFRUCTOKINASE; GLUCOSE-6-PHOSPHATE DEHYDROGENASE; TWITCH TENSION; TETANIC TENSION; CRUSH INJURY; HYPERBARIC OXYGENATION ID SKELETAL-MUSCLE AB This study examined whether subjecting a crushed muscle to a delayed intermittent hyperbaric oxygenation protocol would facilitate healing, the marker for healing being a return toward 100% uncrushed muscle in selected mechanical, morphologic, and biochemical parameters. Thirty-six rabbits (4 groups of 9) had the right lateral head of their gastrocnemius muscle surgically crushed. After surgery, the rabbits were exposed daily for 90 min 5 days/wk to either 100% O2 at 243 kPa, 8.5% O2 and 91.5% N2 at 243 kPa, 100% O2 at 101 kPa, or 21% O2 at 101 kPa. Initial treatments were administered 16-18 h post-muscle crush. After 10 days of treatment, maximal twitch and tetanic tension of the crushed muscle and its contralateral counterpart were measured. The muscles were then removed and analyzed morphologically, and the activity of citrate synthase, phosphofructokinase, and glucose-6-phosphate dehydrogenase were measured. The treatment group means for any of the parameters measured were not significantly different from each other. The extent of muscle damage, however, was determined to be minor as the control group recovery threshold was approximately 80%. Thus, it seems that the treatment protocol used does not facilitate healing for this type of muscle crush injury. C1 USAF,ARMSTRONG LAB,BROOKS AFB,TX 78235. RP NELSON, AG (reprint author), LOUISIANA STATE UNIV,DEPT KINESIOL,112 LONG FIELD HOUSE,BATON ROUGE,LA 70803, USA. NR 8 TC 9 Z9 10 U1 0 U2 1 PU UNDERSEA & HYPERBARIC MEDICAL SOC INC PI KENSINGTON PA 10531 METROPOLITAN AVE, KENSINGTON, MD 20895 SN 1066-2936 J9 UNDERSEA HYPERBAR M JI Undersea Hyperb. Med. PD JUN PY 1994 VL 21 IS 2 BP 185 EP 191 PG 7 WC Marine & Freshwater Biology; Medicine, Research & Experimental SC Marine & Freshwater Biology; Research & Experimental Medicine GA NT011 UT WOS:A1994NT01100008 PM 8061559 ER PT J AU NELSON, AG WOLF, EG HEARON, CM LI, B AF NELSON, AG WOLF, EG HEARON, CM LI, B TI HYPERBARIC OXYGENATION TREATMENTS AND METABOLIC ENZYMES IN THE HEART AND DIAPHRAGM SO UNDERSEA & HYPERBARIC MEDICINE LA English DT Article DE RABBITS; CITRATE SYNTHASE; SUCCINATE DEHYDROGENASE; ALPHA-GLYCEROPHOSPHATE DEHYDROGENASE; PHOSPHOFRUCTOKINASE; GLYCERALDEHYDE-3-PHOSPHATE DEHYDROGENASE ID ENDURANCE AB We previously found that intermittent hyperbaric oxygen exposure increases metabolic enzyme activity in soleus muscle. Since the metabolic enzyme activities of the heart and diaphragm of healthy animals are difficult to alter, we questioned whether intermittent hyperbaric oxygenation would provide a stimulus sufficient to increase metabolic enzyme activity. Therefore, we exposed 36 rabbits (4 groups of 9) twice daily for 90 min 5 days/wk to either 100% O2 at 243 kPa, 8.5% O2, and 91.5% N, at 243 kPa, 100% O2 at 101 kPa, or 21% O2 at 101 kPa. After 4 wk of treatment, the activities of citrate synthase, succinate dehydrogenase, alpha-glycerophosphate dehydrogenase, phosphofructokinase, and glyceraldehyde-3-phosphate dehydrogenase were measured. In both the heart and the diaphragm, none of the treatments significantly altered the mean enzyme activities for any of the enzymes measured. Therefore, it seems that the hyperbaric oxygenation treatment protocols used do not induce an increase in metabolic enzyme activity in the heart and diaphragm in healthy animals. C1 USAF,ARMSTRONG LAB,BROOKS AFB,TX 78235. RP NELSON, AG (reprint author), LOUISIANA STATE UNIV,DEPT KINESIOL,112 LONG FIELD HOUSE,BATON ROUGE,LA 70803, USA. NR 11 TC 0 Z9 1 U1 0 U2 0 PU UNDERSEA & HYPERBARIC MEDICAL SOC INC PI KENSINGTON PA 10531 METROPOLITAN AVE, KENSINGTON, MD 20895 SN 1066-2936 J9 UNDERSEA HYPERBAR M JI Undersea Hyperb. Med. PD JUN PY 1994 VL 21 IS 2 BP 193 EP 198 PG 6 WC Marine & Freshwater Biology; Medicine, Research & Experimental SC Marine & Freshwater Biology; Research & Experimental Medicine GA NT011 UT WOS:A1994NT01100009 PM 8061560 ER PT J AU BRUNO, JG PARKER, JE KIEL, JL AF BRUNO, JG PARKER, JE KIEL, JL TI PLANT NITRATE REDUCTASE GENE FRAGMENTS ENHANCE NITRITE PRODUCTION IN ACTIVATED MURINE MACROPHAGE CELL-LINES SO BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS LA English DT Article ID L-ARGININE; OXIDE; INVIVO AB Nitrate reductase (NR) gene fragments (1.1 kb and 800 bp) from the barley plant were incorporated into pSV(2)neo and transfected by electroporation into a variety of cell lines of different functionality. Only transfected murine macrophage cell lines demonstrated appreciably enhanced NO2- production (i.e., NR activity) both in the presence and absence of exogenous nitrate (NO3-). Addition of NO3- caused the greatest increase in NO2- production when macrophages were primed with interferon-gamma (INF-gamma) and lipopolysaccharide (LPS). Transfection of RAW 264.7 murine macrophages led to isolation of several novel neomycin-resistant subpopulations designated NR10(1), NR10(2) (both containing the 1.1 kb NR fragment) and NR800(5) (containing the 800 bp NR fragment). Similarly transfected nonleukocytic and leukocytic stem cell lines showed no significant NO2- production. Outside of the macrophage cell lines, only the murine T cell line EL-4 showed evidence of mild nitrite production enhancement. The mechanism of enhanced NO2- formation in NR transfected murine macrophages is unknown. However, study of these novel cells may lead to greater understanding of the expression of a plant NR in mammalian cells and highly controlled production of a cytotoxic molecule (NO2-) in macrophages. (C) 1994 Academic Press, Inc. RP BRUNO, JG (reprint author), ARMSTRONG LAB,DIV RADIO FREQUENCY RADIAT,BROOKS AFB,TX 78235, USA. NR 12 TC 7 Z9 7 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 0006-291X J9 BIOCHEM BIOPH RES CO JI Biochem. Biophys. Res. Commun. PD MAY 30 PY 1994 VL 201 IS 1 BP 284 EP 289 DI 10.1006/bbrc.1994.1699 PG 6 WC Biochemistry & Molecular Biology; Biophysics SC Biochemistry & Molecular Biology; Biophysics GA NN877 UT WOS:A1994NN87700039 PM 8198585 ER PT J AU MEYER, MGS AF MEYER, MGS TI CAN UNIVERSAL PRECAUTIONS SPREAD DISEASE - REPLY SO ARCHIVES OF INTERNAL MEDICINE LA English DT Letter RP MEYER, MGS (reprint author), USAF,BETHESDA,MD, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU AMER MEDICAL ASSOC PI CHICAGO PA 515 N STATE ST, CHICAGO, IL 60610 SN 0003-9926 J9 ARCH INTERN MED JI Arch. Intern. Med. PD MAY 23 PY 1994 VL 154 IS 10 BP 1164 EP 1166 PG 3 WC Medicine, General & Internal SC General & Internal Medicine GA NM394 UT WOS:A1994NM39400020 ER PT J AU MARQUARDT, CL COOPER, DG BUDNI, PA KNIGHTS, MG SCHEPLER, KL DEDOMENICO, R CATELLA, GC AF MARQUARDT, CL COOPER, DG BUDNI, PA KNIGHTS, MG SCHEPLER, KL DEDOMENICO, R CATELLA, GC TI THERMAL LENSING IN SILVER GALLIUM SELENIDE PARAMETRIC OSCILLATOR CRYSTALS SO APPLIED OPTICS LA English DT Article ID AGGASE2 AB We performed an experimental investigation of thermal lensing in silver gallium selenide (AgGaSe2) optical parametric oscillator crystals pumped by a 2-mum laser at ambient temperature. We determined an empirical expression for the effective thermal focusing power in terms of the pump power, beam diameter, crystal length, and absorption coefficient. This relation may be used to estimate average power limitations in designing AgGaSe2 optical parametric oscillators. We also demonstrated an 18% slope efficiency from a 2-mum pumped AgGaSe2 optical parametric oscillator operated at 77 K, at which temperature thermal lensing is substantially reduced because of an increase in the thermal conductivity and a decrease in the thermal index gradient dn/dT. Cryogenic cooling may provide an additional option for scaling up the average power capability of a 2-mum pumped AgGaSe2 optical parametric oscillator. C1 JAYCOR, VIENNA, VA 22180 USA. LOCKHEED SANDERS, MERRIMACK, NH 03054 USA. WRIGHT LAB, WRIGHT PATTERSON AFB, OH 45433 USA. CLEVELAND CRYSTALS INC, CLEVELAND, OH USA. RP MARQUARDT, CL (reprint author), USN, RES LAB, WASHINGTON, DC 20375 USA. OI Schepler, Kenneth/0000-0001-9658-2305 NR 13 TC 26 Z9 27 U1 1 U2 7 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 MAY 20 PY 1994 VL 33 IS 15 BP 3192 EP 3197 PG 6 WC Optics SC Optics GA NM308 UT WOS:A1994NM30800007 PM 20885687 ER PT J AU CREAGHAN, SG PALAZOTTO, AN AF CREAGHAN, SG PALAZOTTO, AN TI NONLINEAR LARGE-DISPLACEMENT AND MODERATE ROTATIONAL CHARACTERISTICS OF COMPOSITE BEAMS INCORPORATING TRANSVERSE-SHEAR STRAIN SO COMPUTERS & STRUCTURES LA English DT Article ID LARGE DEFLECTIONS; CIRCULAR ARCHES AB This research was directed toward the investigation of nonlinear large displacements and moderate rotations of composite beam structures considering a finite element potential energy approach incorporating through-the-thickness shear strain as an analytical function. This approach was compared to large rotation theories. Test cases were run to evaluate numerical algorithms. Riks method and displacement imposed techniques were employed. The limitations and advantages of both methods were considered. Loading arrangements included concentrated forces as well as moments. RP CREAGHAN, SG (reprint author), USAF,INST TECHNOL,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433, USA. NR 19 TC 6 Z9 6 U1 0 U2 1 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 MAY 17 PY 1994 VL 51 IS 4 BP 357 EP 371 DI 10.1016/0045-7949(94)90321-2 PG 15 WC Computer Science, Interdisciplinary Applications; Engineering, Civil SC Computer Science; Engineering GA NU277 UT WOS:A1994NU27700004 ER PT J AU STUTZ, CE JOGAI, B LOOK, DC BALLINGALL, JM ROGERS, TJ AF STUTZ, CE JOGAI, B LOOK, DC BALLINGALL, JM ROGERS, TJ TI ELECTROCHEMICAL CAPACITANCE-VOLTAGE ANALYSIS OF DELTA-DOPED PSEUDOMORPHIC HIGH-ELECTRON-MOBILITY TRANSISTOR MATERIAL SO APPLIED PHYSICS LETTERS LA English DT Article ID GAAS AB This work shows how electrochemical capacitance-voltage (EC-V) measurements can be used to evaluate delta-doped pseudomorphic high electron mobility transistor material. These EC-V measurements are compared with magnetic-field-dependent Hall effect (M-Hall) measurements and a self-consistent Poisson/k.p calculation of the band structure and electron concentration. The EC-V technique can clearly delineate the cap layer, the delta-doped layer, and the InxGa1-xAs channel layer, whereas the M-Hall method characterizes only the cap and InxGa1-xAs channel layers. The amount of electron charge seen by the EC-V and M-Hall measurements show good agreement with theory. C1 WRIGHT STATE UNIV,UNIV RES CTR,DAYTON,OH 45435. MARTIN MARIETTA CORP,ELECTR LAB,SYRACUSE,NY 13221. RP STUTZ, CE (reprint author), WRIGHT LAB,WL,ELR,SOLID STATE ELECTR DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433, USA. NR 8 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 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD MAY 16 PY 1994 VL 64 IS 20 BP 2703 EP 2705 DI 10.1063/1.111471 PG 3 WC Physics, Applied SC Physics GA NL618 UT WOS:A1994NL61800029 ER PT J AU FLYNN, WJ WESTFALL, CT WEISMAN, JS AF FLYNN, WJ WESTFALL, CT WEISMAN, JS TI TRANSIENT BLINDNESS AFTER OPTIC-NERVE SHEATH FENESTRATION SO AMERICAN JOURNAL OF OPHTHALMOLOGY LA English DT Note RP FLYNN, WJ (reprint author), WILFORD HALL USAF MED CTR,PSSE,DEPT OPHTHALMOL,2200 BERGQUIST DR,STE 1,LACKLAND AFB,TX 78236, USA. NR 3 TC 22 Z9 22 U1 0 U2 0 PU OPHTHALMIC PUBL CO PI CHICAGO PA 77 WEST WACKER DR, STE 660, CHICAGO, IL 60601 SN 0002-9394 J9 AM J OPHTHALMOL JI Am. J. Ophthalmol. PD MAY 15 PY 1994 VL 117 IS 5 BP 678 EP 679 PG 2 WC Ophthalmology SC Ophthalmology GA NK256 UT WOS:A1994NK25600026 PM 8172284 ER PT J AU MADARASZ, FL SZMULOWICZ, F HOPKINS, FK DORSEY, DL AF MADARASZ, FL SZMULOWICZ, F HOPKINS, FK DORSEY, DL TI PREDICTION OF GIANT CHI(3) VALUES FROM A CALCULATION OF EXCITONIC NONLINEAR-OPTICAL PROPERTIES IN RECTANGULAR GAAS QUANTUM-WELL WIRES SO PHYSICAL REVIEW B LA English DT Article ID BINDING-ENERGY; SEMICONDUCTOR MICROCRYSTALLITES; ABSORPTION; HETEROSTRUCTURES; SUSCEPTIBILITY; SUPERLATTICES; CONFINEMENT; ENHANCEMENT; DEPOSITION; DIMENSION AB Exciton and biexciton binding energies, wave functions, and oscillator strengths are calculated variationally for rectangular GaAs quantum-well wires in an effective-mass approximation. The Coulomb interaction terms are treated exactly in their full three-dimensional form throughout the calculation, especially in the case of the biexciton, which is a more physically realistic procedure than was employed in previous calculations which used effective one-dimensional potentials. Our treatment is unique in the use of a two-dimensional Fourier expansion of the Coulomb potential, which removes the numerical difficulty with the 1/r singularity and considerably reduces the computational effort. As an intermediate step, we calculate the linear absorption coefficients at the exciton resonance as a function of the wire dimensions. The results compare favorably with those of Suemune and Coldren [IEEE J. Quantum Electron. QE-24, 1778 (1988)]. Using the results of the exciton and biexciton calculation, we then estimate the third-order nonlinear optical susceptibility for near-resonant excitonic absorption by using the approach of Ishihara [Phys. Status Solidi 159, 371 (1990)]. We obtain chi(3)'s on the order of 10(-1)-1 esu for various wire dimensions. C1 UNIV ALABAMA,CTR APPL OPT,HUNTSVILLE,AL 35899. WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RP MADARASZ, FL (reprint author), UNIV ALABAMA,OPT SCI & ENGN PROGRAM,HUNTSVILLE,AL 35899, USA. NR 63 TC 59 Z9 59 U1 1 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 MAY 15 PY 1994 VL 49 IS 19 BP 13528 EP 13541 DI 10.1103/PhysRevB.49.13528 PG 14 WC Physics, Condensed Matter SC Physics GA NN993 UT WOS:A1994NN99300025 ER PT J AU REYENGA, TS AF REYENGA, TS TI C-QUAD CITY SO EDN LA English DT Letter RP REYENGA, TS (reprint author), LASKA,ALC,OC,TINKER AFB,OK, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU CAHNERS-DENVER PUBLISHING CO PI HIGHLANDS RANCH PA 8773 S RIDGELINE BLVD, HIGHLANDS RANCH, CO 80126-2329 SN 0012-7515 J9 EDN JI EDN PD MAY 12 PY 1994 VL 39 IS 10 BP 27 EP 28 PG 2 WC Engineering, Electrical & Electronic SC Engineering GA NK779 UT WOS:A1994NK77900004 ER PT J AU ROGGEMANN, MC CAUDILL, EL TYLER, DW FOX, MJ VONBOKERN, MA MATSON, CL AF ROGGEMANN, MC CAUDILL, EL TYLER, DW FOX, MJ VONBOKERN, MA MATSON, CL TI COMPENSATED SPECKLE IMAGING - THEORY AND EXPERIMENTAL RESULTS SO APPLIED OPTICS LA English DT Article ID ADAPTIVE-OPTICS; LEAST-SQUARES; RECONSTRUCTION; INTERFEROMETRY; PERFORMANCE; BISPECTRUM AB Previous analyses have predicted that improved power-spectrum estimation results from application of speckle-imaging postprocessing to compensated astronomical images. We report the first results, to our knowledge, of compensated-speckle-imaging experiments, conducted at a compensated telescope operated by the U.S. Air Force, that confirm these predictions. The power-spectrum signal-to-noise ratio is used as the metric for evaluating the performance. We report the results of power-spectrum estimation for a single star and three binary stars, and we reconstruct images of the binary stars using the bispectrum method to obtain the Fourier phase of the object. Compensated and uncompensated results are compared. A previously derived expression that expresses the power-spectrum signal-to-noise ratio in terms of the compensated optical transfer function statistics and object parameters is verified by experimental data. C1 USAF, PHILLIPS LAB, DIV ADV IMAGING, KIRTLAND AFB, NM 87117 USA. SEATTLE PACIFIC UNIV, DEPT ELECT ENGN, SEATTLE, WA 98119 USA. NR 17 TC 15 Z9 15 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 MAY 10 PY 1994 VL 33 IS 14 BP 3099 EP 3110 PG 12 WC Optics SC Optics GA NL042 UT WOS:A1994NL04200041 PM 20885674 ER PT J AU TAM, CKW AHUJA, KK JONES, RR AF TAM, CKW AHUJA, KK JONES, RR TI SCREECH TONES FROM FREE AND DUCTED SUPERSONIC JETS SO AIAA JOURNAL LA English DT Article ID HIGH-SPEED JETS; INSTABILITY WAVES; NOISE; FLOWS AB It is well known that screech tones from supersonic jets are generated by a feedback loop. The loop consists of three main components. They are the downstream propagating instability wave, the shock cell structure in the jet plume, and the feedback acoustic waves immediately outside the jet. Evidence will be presented to show that the screech frequency is largely controlled by the characteristics of the feedback acoustic waves. The feedback loop is driven by the instability wave of the jet. Thus the tone intensity and its occurrence are dictated by the characteristics of the instability wave. In this paper the dependence of the instability wave spectrum on the azimuthal mode number (axisymmetric or helical/flapping mode, etc.), the jet-to-ambient gas temperature ratio, and the jet Mach number are studied. The results of this study provide an explanation for the observed screech tone mode switch phenomenon (changing from axisymmetric to helical mode as Mach number increases) and the often-cited experimental observation that tone intensity reduces with increase in jet temperature. For ducted supersonic jets screech tones can also be generated by feedback loops formed by the coupling of normal duct modes to instability waves of the jet. The screech frequencies are dictated by the frequencies of the duct modes. Super resonance, resonance involving very large pressure oscillations, can occur when the feedback loop is powered by the most amplified instability wave. It is proposed that the observed large amplitude pressure fluctuations and tone in the test cells of Arnold Engineering Development Center were generated by super resonance. Estimated super-resonance frequency for a Mach 1.3 axisymmetric jet tested in the facility agrees well with measurement. C1 GEORGIA INST TECHNOL,RES INST,ACOUST BRANCH,ATLANTA,GA 30332. GEORGIA INST TECHNOL,DEPT AEROSP ENGN,ATLANTA,GA 30332. SVERDRUP TECHNOL INC,ARNOLD ENGN DEV CTR GRP,ARNOLD AFB,TN 38389. RP TAM, CKW (reprint author), FLORIDA STATE UNIV,DEPT MATH,TALLAHASSEE,FL 32306, USA. NR 19 TC 14 Z9 15 U1 1 U2 3 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 MAY PY 1994 VL 32 IS 5 BP 917 EP 922 DI 10.2514/3.12074 PG 6 WC Engineering, Aerospace SC Engineering GA NJ389 UT WOS:A1994NJ38900003 ER PT J AU VISBAL, MR GORDNIER, RE AF VISBAL, MR GORDNIER, RE TI CROSS-FLOW TOPOLOGY OF VORTICAL FLOWS SO AIAA JOURNAL LA English DT Note RP VISBAL, MR (reprint author), USAF,WRIGHT LAB,DIV AEROMECH,CFD RES BRANCH,WRIGHT PATTERSON AFB,OH 45433, USA. NR 7 TC 11 Z9 12 U1 1 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 MAY PY 1994 VL 32 IS 5 BP 1085 EP 1087 DI 10.2514/3.12100 PG 3 WC Engineering, Aerospace SC Engineering GA NJ389 UT WOS:A1994NJ38900029 ER PT J AU SCHOEPPNER, GA WOLFE, WE SANDHU, RS AF SCHOEPPNER, GA WOLFE, WE SANDHU, RS TI STRESS-BASED ELASTODYNAMIC DISCRETE LAMINATED PLATE-THEORY (VOL 32, PG 616, 1994) SO AIAA JOURNAL LA English DT Correction, Addition C1 OHIO STATE UNIV,COLUMBUS,OH 43210. RP SCHOEPPNER, GA (reprint author), USAF,WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433, USA. NR 1 TC 0 Z9 0 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 MAY PY 1994 VL 32 IS 5 BP 1106 EP 1106 DI 10.2514/3.12029 PG 1 WC Engineering, Aerospace SC Engineering GA NJ389 UT WOS:A1994NJ38900038 ER PT J AU SMITH, DK WRIGHT, J AF SMITH, DK WRIGHT, J TI WATER BAGS - AN INEXPENSIVE METHOD FOR IMPROVING FAT-SUPPRESSION IN MR-IMAGING OF THE EXTREMITIES SO AMERICAN JOURNAL OF ROENTGENOLOGY LA English DT Letter RP SMITH, DK (reprint author), WILFORD HALL USAF MED CTR,SAN ANTONIO,TX 78236, USA. NR 5 TC 9 Z9 9 U1 0 U2 0 PU AMER ROENTGEN RAY SOC PI RESTON PA 1891 PRESTON WHITE DR, SUBSCRIPTION FULFILLMENT, RESTON, VA 22091 SN 0361-803X J9 AM J ROENTGENOL JI Am. J. Roentgenol. PD MAY PY 1994 VL 162 IS 5 BP 1252 EP 1253 PG 2 WC Radiology, Nuclear Medicine & Medical Imaging SC Radiology, Nuclear Medicine & Medical Imaging GA NH393 UT WOS:A1994NH39300068 PM 8166028 ER PT J AU HENDRIX, CW FLEXNER, C SZEBENI, J KUWAHARA, S PENNYPACKER, S WEINSTEIN, JN LIETMAN, PS AF HENDRIX, CW FLEXNER, C SZEBENI, J KUWAHARA, S PENNYPACKER, S WEINSTEIN, JN LIETMAN, PS TI EFFECT OF DIPYRIDAMOLE ON ZIDOVUDINE PHARMACOKINETICS AND SHORT-TERM TOLERANCE IN ASYMPTOMATIC HUMAN IMMUNODEFICIENCY VIRUS-INFECTED SUBJECTS SO ANTIMICROBIAL AGENTS AND CHEMOTHERAPY LA English DT Article ID PLACEBO-CONTROLLED TRIAL; MONOCYTE MACROPHAGES; NUCLEOSIDE SALVAGE; HIV INFECTION; DOUBLE-BLIND; 3'-AZIDO-3'-DEOXYTHYMIDINE; INHIBITION; THERAPY; AIDS; AZT AB Zidovudine delays the progression of infection and prolongs the survival of human immunodeficiency virus (HIV)-infected patients, but these benefits are limited by dose-related toxicity and the cost of the drug. Dipyridamole, in micromolar concentrations, acts synergistically with zidovudine, reducing the anti-HIV 95% inhibitory concentration of zidovudine 5 to 10-fold in vitro. We sought to establish a well-tolerated dose of dipyridamole for use in combination with zidovudine and to detect clinically significant pharmacokinetic interactions. Both objectives are essential for planning studies of the efficacy of the zidovudine-dipyridamole combination. Eleven asymptomatic HIV-infected subjects (median CD4(+) cell count, 311 cells per mm(3)), 10 of whom had been on zidovudine at 500 mg/day for at least 6 months, were admitted to the study. Zidovudine pharmacokinetics were measured on day 1. Dipyridamole was then begun at 600 mg/day (subjects 1 to 3) or 450 mg/day (subjects 4 to 11), and zidovudine and dipyridamole pharmacokinetics were measured on day 5. All subjects given 600 mg of dipyridamole per day developed headache or nausea, or both. Six of eight subjects given dipyridamole at 450 mg/day developed headache or mild nausea that resolved after a median of 2 days. The area under the zidovudine concentration-time curve was not significantly different on day 1 in comparison with that on day 5 (P = 0.11). Symptoms were significantly correlated with the maximum zidovudine concentrations, which were achieved when dipyridamole was dosed concomitantly (p = 0.03). Total (free and protein-bound) dipyridamole trough concentrations were near those demonstrating synergy with zidovudine against PW in vitro. Dipyridamole was highly protein bound, with a median free/total dipyridamole ratio of 0.7%; the percent free/total dipyridamole ratio was inversely correlated with alpha, acid glycoprotein concentrations (r(2) = 0.66). Results of the study indicate that adjustment of the zidovudine dose was not required to achieve equivalent zidovudine concentrations when zidovudine was administered in combination with dipyridamole at the doses studied. In the short study described here, the zidovudine-dipyridamole combination was well tolerated in asymptomatic HIV-infected subjects after the occurrence of mild transient symptoms. C1 WILFORD HALL USAF MED CTR,CTR AIDS RES,DIV MED,LACKLAND AFB,TX 78236. JOHNS HOPKINS UNIV,SCH MED,DEPT MED,DIV CLIN PHARMACOL,BALTIMORE,MD 21287. JOHNS HOPKINS UNIV,SCH MED,DEPT MED,DIV INFECT DIS,BALTIMORE,MD 21287. JOHNS HOPKINS UNIV,SCH MED,DEPT PHARMACOL & MOLEC SCI,DIV CLIN PHARMACOL,BALTIMORE,MD 21287. JOHNS HOPKINS UNIV,SCH MED,DEPT PHARMACOL & MOLEC SCI,DIV INFECT DIS,BALTIMORE,MD 21287. JOHNS HOPKINS UNIV,SCH MED,DEPT PEDIAT,DIV CLIN PHARMACOL,BALTIMORE,MD 21287. NCI,BETHESDA,MD 20892. HENRY M JACKSON FDN ADVANCEMENT MIL MED,ROCKVILLE,MD 20850. MIL MED CONSORTIUM APPL RETROVIRAL RES,ROCKVILLE,MD 20850. RP HENDRIX, CW (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 FU NIADDK NIH HHS [AM 26356] NR 20 TC 11 Z9 11 U1 0 U2 1 PU AMER SOC MICROBIOLOGY PI WASHINGTON PA 1325 MASSACHUSETTS AVENUE, NW, WASHINGTON, DC 20005-4171 SN 0066-4804 J9 ANTIMICROB AGENTS CH JI Antimicrob. Agents Chemother. PD MAY PY 1994 VL 38 IS 5 BP 1036 EP 1040 PG 5 WC Microbiology; Pharmacology & Pharmacy SC Microbiology; Pharmacology & Pharmacy GA NJ575 UT WOS:A1994NJ57500021 PM 8067734 ER PT J AU DUCHARME, AD BOREMAN, GD SNYDER, DR AF DUCHARME, AD BOREMAN, GD SNYDER, DR TI EFFECTS OF INTENSITY THRESHOLDING ON THE POWER SPECTRUM OF LASER SPECKLE SO APPLIED OPTICS LA English DT Article DE CHARGE-COUPLED DEVICES; LASER SPECKLE; MODULATION TRANSFER FUNCTION; POWER SPECTRUM; THRESHOLDING AB Spatial-frequency filtering of laser-speckle patterns has proved to be a useful tool in the measurement of the modulation transfer function for focal plane arrays. Intensity thresholding of the laser-speckle patterns offers nearly an order of magnitude savings in digital storage space. The effect of this thresholding on the spatial-frequency power spectral density of the speckle pattern is investigated. An optimum threshold level is found that minimizes distortion of the power spectrum for the classes of speckle data used for modulation transfer function testing. C1 UNIV CENT FLORIDA, CTR RES & EDUC OPT & LASERS, DEPT ELECT ENGN, ORLANDO, FL 32816 USA. RP DUCHARME, AD (reprint author), USAF, MNGI, WRIGHT LAB, EGLIN AFB, FL 32542 USA. NR 7 TC 5 Z9 5 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 MAY 1 PY 1994 VL 33 IS 13 BP 2715 EP 2720 PG 6 WC Optics SC Optics GA NJ771 UT WOS:A1994NJ77100038 PM 20885628 ER PT J AU ALBANESE, R BLASCHAK, J MEDINA, R PENN, J AF ALBANESE, R BLASCHAK, J MEDINA, R PENN, J TI ULTRASHORT ELECTROMAGNETIC SIGNALS BIOPHYSICAL QUESTIONS, SAFETY ISSUES, AND MEDICAL OPPORTUNITIES SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID GEL-ELECTROPHORESIS; PULSE-PROPAGATION; DISPERSIVE MEDIUM; DYNAMICS; ENERGY; DNA AB Ultrashort electromagnetic pulses are being increasingly produced by modern high power microwave and laser devices. These ultrashort pulses can produce electromagnetic transients in tissue that prompt safety questions concerning the possible exposure of living beings to ultrashort electromagnetic pulses. The existence of electromagnetic transients may permit meaningful advances in medical therapy and imaging. Electromagnetic transients, potential medical applications, and anticipated research avenues relevant to occupational health and safety issues are discussed. RP ALBANESE, R (reprint author), USAF,OCCUPAT & ENVIRONM HLTH DIRECTORATE,DIV MATH PROD,16TH ST,BLDG 776,BROOKS AFB,TX 78235, USA. NR 22 TC 26 Z9 30 U1 1 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 MAY PY 1994 VL 65 IS 5 SU 5 BP A116 EP A120 PG 5 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NK645 UT WOS:A1994NK64500021 PM 8018070 ER PT J AU CLARK, DA TOLAN, GD JOHNSON, R HICKMAN, JR JACKSON, WG MCGRANAHAN, GM AF CLARK, DA TOLAN, GD JOHNSON, R HICKMAN, JR JACKSON, WG MCGRANAHAN, GM TI THE WEST-POINT-STUDY - 40 YEARS OF FOLLOW-UP SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID SERUM-CHOLESTEROL AB Completion of cardiovascular evaluations of 387 members marked the end of 40 years of follow-up in the West Point Study. Coronary artery disease (CAD) caused 4 cases of sudden death, 14 cases of myocardial infarction (MI), 13 cases of angina, and 17 cases of silent CAD. Using risk factors (serum cholesterol, estimated HDL-cholesterol, systolic blood pressure, and smoking status) measured before age 28, we derived a multivariate regression formula for predicting which members of the study, had they been pilots, would have been grounded far CAD before age 55. This derivation used data from only those subjects with CAD or with no evidence of CAD. We then used the formula to compute a risk-related score for each member of the study. In the tertile group with the highest risk-related scores, 17% manifested CAD by age 55 and the first event occurred at age 39. In the tertile group of lowest scores, 2% experienced CAD by age 55 and the first event occurred at age 51. We conclude that it is possible to select pilot candidates with the lowest risk for CAD. RP CLARK, DA (reprint author), ARMSTRONG LAB,DIV CLIN SCI,AEROSP MED DIRECTORATE,AOCIS,2507 KENNEDY CIRCLE,BROOKS AFB,TX 78235, USA. NR 14 TC 2 Z9 2 U1 1 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 MAY PY 1994 VL 65 IS 5 SU 5 BP A71 EP A74 PG 4 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NK645 UT WOS:A1994NK64500014 PM 8018084 ER PT J AU ENGELKEN, EJ STEVENS, KW BELL, AF AF ENGELKEN, EJ STEVENS, KW BELL, AF TI THE APPLICATION OF SMOOTH-PURSUIT EYE-MOVEMENT ANALYSIS TO CLINICAL MEDICINE SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID DYSFUNCTION AB Pursuit tracking eye movements were analyzed from selected patients with neurological injuries and compared to the responses of 20 normal subjects. The patients/subjects tracked a small spot of light moving sinusoidally in the horizontal plane at a frequency of 0.4 Hz and a peak to peak amplitude of 40 degrees. Eye-movement responses were separated into a smooth-pursuit component and a saccadic component. The smooth-pursuit component was analysed by calculating the gain, phase, and asymmetry. The saccadic component was quantified by calculating the percentage of the total tracking movement contributed by the saccadic system. The patients with smooth-pursuit impairment exhibited a higher percentage of saccadic tracking and a lower smooth pursuit gain compared to the normal subjects. One patient with a unilateral lesion exhibited significant asymmetry in the smooth-pursuit component. In this case, the direction of the asymmetry indicated the side of the lesion. RP ENGELKEN, EJ (reprint author), ARMSTRONG LAB,DIV CLIN SCI,AEROSP MED DIRECTORATE,VESTIBULAR LAB,2507 KENNEDY CIRCLE,BROOKS AFB,TX 78235, USA. NR 13 TC 1 Z9 1 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 MAY PY 1994 VL 65 IS 5 SU 5 BP A62 EP A65 PG 4 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NK645 UT WOS:A1994NK64500012 PM 8018081 ER PT J AU FLYNN, CF SIPES, WE GROSENBACH, MJ ELLSWORTH, J AF FLYNN, CF SIPES, WE GROSENBACH, MJ ELLSWORTH, J TI TOP PERFORMER SURVEY - COMPUTERIZED PSYCHOLOGICAL-ASSESSMENT IN AIRCREW SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID PILOTS AB There were 29 (80%) subjects from a squadron of 36 F-16 pilots who voluntarily participated in a newly developed anonymous, self-administered, computerized tasting protocol. The test battery consisted of two 2.5 h blocks their gathered demographic information and measured personality (MMPI-2), cognitive capacity (MAB), crew coordination skills (PCI), and history of psychiatric diagnoses (C-DIS). The test battery also included a peer rating survey that collected information about the squadron's top performers and their personal qualities. Results indicated that aviators can agree who are top performers and what personal qualities are important in top performers. This pilot project demonstrated the success of the battery to gather aircrew information in a field location. Test data are presented. C1 TFW MED CLIN 127,SELFRIDGE ANG BASE,MI. RP FLYNN, CF (reprint author), ARMSTRONG LAB,DIV CLIN SCI,AEROSP MED DIRECTORATE,AL,AOCN,2507 KENNEDY CIRCLE,BROOKS AFB,TX 78235, USA. NR 22 TC 6 Z9 6 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 MAY PY 1994 VL 65 IS 5 SU 5 BP A39 EP A44 PG 6 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NK645 UT WOS:A1994NK64500008 PM 8018077 ER PT J AU FRENCH, J BISSON, RU NEVILLE, KJ MITCHA, J STORM, WF AF FRENCH, J BISSON, RU NEVILLE, KJ MITCHA, J STORM, WF TI CREW FATIGUE DURING SIMULATED, LONG-DURATION B-1B BOMBER MISSIONS SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID MELATONIN AB Crew fatigue associated with successive and unaugmented 36 h missions was evaluated in B-1B simulators, Data were obtained from 32 operationally qualified crewmembers. All crewmembers completed three consecutive, long duration missions, each preceded by 33 to 35 h of crew rest. Oral temperature, salivary melatonin and cortisol, as well as actigraph and subjective measures, were collected during all missions. Temperature and melatonin delta indicate that crews maintained their local home base circadian cycles. Elevated cortisol and subjective fatigue during the first mission indicate that it was the most difficult of the three. Furthermore, quality and duration of sleep were lowest during the first mission. These findings emphasize the need for realistic training in long duration fatigue management to improve the safety and effectiveness of the first and subsequent missions. RP FRENCH, J (reprint author), ARMSTRONG LAB,CFTO,CREW SYST DIRECTORATE,2504 D DR,STE 1,BROOKS AFB,TX 78235, USA. NR 15 TC 12 Z9 14 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 MAY PY 1994 VL 65 IS 5 SU 5 BP A1 EP A6 PG 6 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NK645 UT WOS:A1994NK64500003 PM 8018067 ER PT J AU KIEL, JL AF KIEL, JL TI THE ULTIMATE BIOSENSOR SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID DELAYED FLUORESCENCE; REACTION CENTERS; PHOTOSYNTHESIS; YIELDS AB The U.S. Air Force is concerned with the health and safety of personnel working with emitters of nonionizing electromagnetic radiation. Therefore, an understanding of basic mechanisms of interaction of this radiation with biosystems is essential. A non-resonance, nonclassical mechanism exists for interactions with biosystems under low energy (isothermal) field conditions. This mechanism is slow, or delayed, luminescence. Such a mechanism can form the basis for very sensitive biosensors naturally or artificially connected to metabolic and synthetic cellular processes. RP KIEL, JL (reprint author), USAF,ARMSTRONG LAB,OERT,OCCUPAT & ENVIRONM HLTH DIRECTORATE,DIV RADIOFREQUENCY RADIAT,BROOKS AFB,TX 78235, USA. NR 16 TC 2 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 MAY PY 1994 VL 65 IS 5 SU 5 BP A121 EP A124 PG 4 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NK645 UT WOS:A1994NK64500022 PM 8018071 ER PT J AU MCKINLEY, RL ERICKSON, MA DANGELO, WR AF MCKINLEY, RL ERICKSON, MA DANGELO, WR TI 3-DIMENSIONAL AUDITORY DISPLAYS - DEVELOPMENT, APPLICATIONS, AND PERFORMANCE SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID FREE-FIELD; PLANE AB Virtual or 3-D audio display technology has become a reality. This type of system has the capability of synthesizing signals presented over headphones that give the user the illusion that the sound is emanating from some external location. The development of this technology, its applications, and its performance in both laboratory and flight test situations are presented. Potential fighter aircraft applications include threat location warning, wingman location indication, spatially separated multi-channel communications, and audio target location indications. The laboratory performance data show an average localization error in azimuth of approximately 5 degrees, a minimum audible angle of approximately 5 degrees and a speech intelligibility improvement of up to 28%. Flight test results demonstrated successful audio cued target acquisition, a: subjective decrease in target acquisition times, a subjective improvement in speech intelligibility, a subjective increase in situational awareness, and a subjective decrease in pilot workload, A summary of both laboratory and flight test results is presented in addition to recommendations for future research. RP MCKINLEY, RL (reprint author), ARMSTRONG LAB,CREW SYST DIRECTORATE,2610 7TH ST,BLDG 441,WRIGHT PATTERSON AFB,OH 45433, USA. NR 18 TC 21 Z9 21 U1 0 U2 3 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 MAY PY 1994 VL 65 IS 5 SU 5 BP A31 EP A38 PG 8 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NK645 UT WOS:A1994NK64500007 PM 8018076 ER PT J AU ROACH, WP ROGERS, ME ROCKWELL, BA BOPPART, SA STEIN, CD BRAMLETTE, CM AF ROACH, WP ROGERS, ME ROCKWELL, BA BOPPART, SA STEIN, CD BRAMLETTE, CM TI ULTRASHORT LASER-PULSE EFFECTS IN OCULAR AND RELATED MEDIA SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID BREAKDOWN; NEODYMIUM AB Relatively little experimental and theoretical data exist on the retinal hazards of ultrashort laser pulses operating in the visible and near infrared spectral regions. Because of potential nonlinear effects that can occur from high-peak irradiance, ultrashort laser pulses propagate from the cornea to the retina, we have developed four projects within our Ultrashort Pulse Effects program. First, we discuss preliminary ED50 threshold values for nanosecond (ns), picosecond (ps), and femtosecond (fs) single pulses for in-vivo ocular exposures in Dutch Belted Rabbits using pulses in the visible spectral region. Then we examine two experiments that study nonlinear absorption using water tubes and measure the nonlinear refractive index of ocular tissue using the Z-Scan technique. Finally, we determine laser-induced breakdown thresholds in ultrahigh purity water. These studies give reasonable estimates of the damage thresholds and insight into the biophysics of how ultrashort pulses interact with ocular media. RP ROACH, WP (reprint author), USAF,ARMSTRONG LAB,OCCUPAT & ENVIRONM HLTH DIRECTORATE,DIV OPT RADIAT,8111 18TH ST,BROOKS AFB,TX 78235, USA. RI Boppart, Stephen/C-7338-2009 NR 20 TC 5 Z9 5 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 MAY PY 1994 VL 65 IS 5 SU 5 BP A100 EP A107 PG 8 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NK645 UT WOS:A1994NK64500019 PM 8018068 ER PT J AU ROBINETTE, KM WHITESTONE, JJ AF ROBINETTE, KM WHITESTONE, JJ TI THE NEED FOR IMPROVED ANTHROPOMETRIC METHODS FOR THE DEVELOPMENT OF HELMET SYSTEMS SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article AB Fit for the modern flight helmet is not just comfort, but includes proper placement of added components (e.g., earcups, helmet mounted optics, etc.), stability, and even center of gravity location. Many fielded and prototype helmets have been criticised for poor fit, not providing adequate sizes, and compromising safety. In this paper, evidence from studies using new surface digitizing techniques is presented revealing that a large part of the problem is due to the fact that the development of these helmets wets based on traditional anthropometry. These findings demonstrate the need for improved methods of specifying, designing, and evaluating helmets. Specifically, for development of equipment which must interface with the human body, there is a need for fit assessment in conjunction with surface scanning to define: 1) correct positioning of the human with respect to the equipment; 2) proper sizing; and 3) proper rise issuing schemes. RP ROBINETTE, KM (reprint author), ARMSTRONG LAB,CFHD,CREW SYST DIRECTORATE,DIV HUMAN ENGN,DESIGN TECHNOL BRANCH,BLDG 248,2255 H ST,WRIGHT PATTERSON AFB,OH 45433, USA. NR 5 TC 12 Z9 12 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 MAY PY 1994 VL 65 IS 5 SU 5 BP A95 EP A99 PG 5 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NK645 UT WOS:A1994NK64500018 PM 8018088 ER PT J AU SELF, DA HAINSWORTH, R KROCK, LP DOE, CPA LATHAM, RD AF SELF, DA HAINSWORTH, R KROCK, LP DOE, CPA LATHAM, RD TI AN ACUTE ANIMAL-MODEL THAT SIMULATES THE HEMODYNAMIC SITUATIONS PRESENT DURING +G(Z) ACCELERATION SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID ABDOMINAL VASCULAR CAPACITANCE; LEFT-VENTRICULAR PRESSURE; CAROTID-SINUS PRESSURE; ANESTHETIZED DOGS; RESPONSES; BARORECEPTORS; STIMULATION AB Air combat maneuver acceleration (G) profiles with onset/ offset patterns that occur faster than the response characteristics of the human cardiovascular system may lead to regulatory instability and, ultimately, acceleration-induced loss of consciousness (G-LOC) incidents. We have developed an acute animal model that simulates the hemodynamic situations seen under acceleration to study the effects of complex G environments on individual reflexogenic areas. This preparation allowed us to individually isolate the effects of high gravity on venous return and cardiac preload, arterial baroreflexes and splanchnic capacity. This report describes the preparation and presents examples of the types of +Gz simulations possible and recordings of the responses of the animals. Further, we tested the hypothesis that the volume of blood displaced from the cephalic regions of the circulation and the rate of displacement into the splanchnic capacitance with G onset is affected by distending pressure at the carotid/aortic baroreceptor sites. Early results from 7 dogs show that resistance to flow into the splanchnic beds is affected by changes in distending pressure occurring at arterial baroreceptor sites. When pressure distending the carotid/aortic baroreceptors was increased, resistance to flow into the abdominal vascular beds was decreased. This result suggests that sudden increases in +Gz loads occurring during the overshoot phase from a previous G-peak may result in reduced tolerance. C1 ARMSTRONG LAB,DIV CLIN SCI,AEROSP MED DIRECTORATE,BROOKS AFB,TX. UNIV LEEDS,ACAD UNIT CARDIOVASC STUDIES,LEEDS,W YORKSHIRE,ENGLAND. RP SELF, DA (reprint author), USAF,AL,CFTF,DIV CREW TECHNOL,CREW SYST DIRECTORATE,2540 D DR,STE 1,BROOKS AFB,TX 78235, USA. NR 21 TC 3 Z9 3 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 MAY PY 1994 VL 65 IS 5 SU 5 BP A80 EP A89 PG 10 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NK645 UT WOS:A1994NK64500016 PM 8018086 ER PT J AU SIEM, FM MURRAY, MW AF SIEM, FM MURRAY, MW TI PERSONALITY-FACTORS AFFECTING PILOT COMBAT PERFORMANCE - A PRELIMINARY INVESTIGATION SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID JOB-PERFORMANCE AB Reviews of the research literature have generally concluded that personality factors contribute little to pilot performance. One possible explanation for the failure to find stronger relationships may be due to the lack of appropriate taxonomies for both personality constructs and for performance constructs. The present research was designed to examine the relationship between personality and combat performance using the ''Big Five'' model of personality and a multi-component model of pilot combat performance. A sample of 100 USAF pilots rated the importance of 60 traits for effective performance on performance dimensions such as flying skills and crew management. The results indicated that pilots from different aircraft agreed that the personality trait of Conscientiousness was the most important determinant of performance on all performance dimensions. Implications for pilot selection are discussed. RP SIEM, FM (reprint author), ARMSTRONG LAB,HUMAN RESOURCES DIRECTORATE,HRMAA,7909 LINDBERGH DR,BROOKS AFB,TX 78235, USA. NR 16 TC 11 Z9 14 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 MAY PY 1994 VL 65 IS 5 SU 5 BP A45 EP A48 PG 4 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NK645 UT WOS:A1994NK64500009 PM 8018078 ER PT J AU SPAIN, JC AF SPAIN, JC TI ENVIRONMENTAL BIOTECHNOLOGY RESEARCH - AN OVERVIEW SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID PSEUDOMONAS SP; BIODEGRADATION AB Cleanup and treatment of hazardous wastes incur major aperational costs for the U.S. Air Force. Bioremediation can provide a cost-effective alternative to traditional technologies for a wide range of natural organic compounds such as jet fuel. Bioventing and natural attenuation are emerging as treatments of choice in many instances. Synthetic organic chemicals are much more resistant to biodegradation. However, recent advances in biotechnology allow the development of strains able to use nitro- and chloro-substituted organic compounds as their sole source of carbon and energy. Current basic research is focused on expanding the range of synthetic chemicals amenable to biodegradation. At the same time, development of appropriate bioreactors and models for scale up are essential for practical application of the technology. RP SPAIN, JC (reprint author), ARMSTRONG LAB,ENVIRON DIRECTORATE,139 BARNES DR,TYNDALL AFB,FL 32403, USA. NR 12 TC 2 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 MAY PY 1994 VL 65 IS 5 SU 5 BP A131 EP A137 PG 7 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NK645 UT WOS:A1994NK64500024 PM 8018074 ER PT J AU STAUFFER, TB MANORANJAN, VS AF STAUFFER, TB MANORANJAN, VS TI THE USE OF GRAIN-SIZE ANALYSIS FIELD-DELTA TO STUDY HYDRAULIC CONDUCTIVITY VARIABILITY SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID DISPERSION; SAND; AQUIFER AB The spatial variability of hydraulic conductivity is studied using grain-size data collected at a groundwater tracer test site located at Columbus AFB, MS. The study involves vertical kriging and the construction of segmented trend surfaces. It is observed that there exists some simple spatial patterns of hydraulic conductivity. Also, a possible existence of a relationship between the results obtained from grain-size data and the detrended flowmeter data are shown. C1 WASHINGTON STATE UNIV,DEPT PURE & APPL MATH,PULLMAN,WA 99164. RP STAUFFER, TB (reprint author), USAF,ARMSTRONG LAB,ENVIRON DIRECTORATE,SUBSURFACE CHEM PROC RES GRP,OL-AL-EQ,139 BARNES DR,TYNDALL AFB,FL 32403, USA. NR 15 TC 2 Z9 2 U1 0 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 MAY PY 1994 VL 65 IS 5 SU 5 BP A125 EP A130 PG 6 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NK645 UT WOS:A1994NK64500023 PM 8018072 ER PT J AU STOUT, RW MITCHELL, SB PARKINSON, MD WARNER, RD MILES, RE FRANZ, BD WOLFE, WH AF STOUT, RW MITCHELL, SB PARKINSON, MD WARNER, RD MILES, RE FRANZ, BD WOLFE, WH TI VIRAL-HEPATITIS IN THE US AIR-FORCE, 1980-89 - AN EPIDEMIOLOGIC AND SEROLOGICAL STUDY SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID UNITED-STATES-NAVY; GEOGRAPHIC RISK-FACTORS; NON-A; PERSONNEL; INFECTION; TRANSMISSION; POPULATION; ARMY AB This paper reports the epidemiology of hospital-diagnosed acute viral hepatitis in U.S. Air Force personnel from 1980-89. First hospitalizations for viral hepatitis generally declined, ranging from 24.6 to 47.2 per 100,000 personnel. Hepatitis rates were higher among men, (RR = 1.3; 95% C.I., 1.1-1.5)and higher among blacks, compared to whites (RR = 1.4; 95% C.I., 1.3-1.6). Analysis of risk associated with various occupations demonstrated an increased risk of viral hepatitis for procedurally oriented medical personnel (physicians, clinical nurses, dentists) when compared to all other occupations (RR = 1.5; 95% C.I., 1.1-1.9). Pilots and navigators demonstrated a decreased risk of acute viral hepatitis. Members hospitalized for hepatitis B had a prior or concurrent diagnosis for sexually transmitted disease in 37% of cases; for drug abuse, 32% of cases. Serum samples from 332 individuals demonstrated that hepatitis A had the highest rate of agreement (84%) between serology and hospital discharge diagnosis. Only 3% of individuals with the diagnosis of NANB hepatitis were positive for hepatitis C. C1 ARMSTRONG LAB,AEROSP MED DIRECTORATE,DIV EPIDEMIOL RES,AOES,BROOKS AFB,TX 78235. NR 24 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 MAY PY 1994 VL 65 IS 5 SU 5 BP A66 EP A70 PG 5 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NK645 UT WOS:A1994NK64500013 PM 8018082 ER PT J AU THOMAS, SR AF THOMAS, SR TI AIRCREW LASER EYE PROTECTION - VISUAL CONSEQUENCES AND MISSION PERFORMANCE SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article AB Battlefield laser proliferation poses a mounting risk to aircrew and ground personnel. Laser eye protection (LEP) based on current mature, mass-producible technologies absorbs visible light and can impact visual performance and color identification. These visual consequences account for many of the mission incompatibilities associated with LEP. Laboratory experiments and field investigations that examined the effects of LEP on visual performance and mission compatibility are reviewed. Laboratory experiments assessed the ability of subjects to correctly read and identify the color of head-down display symbology and tactical pilotage charts (TPC's) with three prototype LEP visors. Field investigations included Weapons Systems Trainer (WST), ground, and flight tests of the LEP visors. Recommendations for modifying aviation lighting systems to improve LEP compatibility are proposed. Issues concerning flight safety when using LEP during air operations are discussed. RP THOMAS, SR (reprint author), USAF,ARMSTRONG LAB,OCCUPAT & ENVIRONM HLTH DIRECTORATE,DIV OPTICAL RADIAT,BROOKS AFB,TX 78235, USA. NR 17 TC 4 Z9 4 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 MAY PY 1994 VL 65 IS 5 SU 5 BP A108 EP A115 PG 8 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NK645 UT WOS:A1994NK64500020 PM 8018069 ER PT J AU TIRRE, WC RAOUF, KK AF TIRRE, WC RAOUF, KK TI GENDER DIFFERENCES IN PERCEPTUAL-MOTOR PERFORMANCE SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article AB Do gender differences exist in perceptual-motor performance, and, if so, are the differences as substantial as those observed in trade/technical knowledge tests? What roles do general cognitive ability and videogame experience have in determining perceptual-motor performance? To address these questions, we administered a battery of computer-based tests requiring multilimb coordination and perceptual matching to a sample of 392 USAF enlistees (72% male). Our main findings were that general cognitive ability held the expected positive main effect on performance and gender and videogame experience had an interactive effect, such that videogame experience benefited men's but not women's performance. The role of experience on perceptual-motor performance merits further attention, especially with regard to gender differences. RP TIRRE, WC (reprint author), ARMSTRONG LAB,HUMAN RESOURCES DIRECTORATE,DIV MANPOWER & PERSONAL RES,HRMI,7909 LINDBERGH DR,BROOKS AFB,TX 78235, USA. NR 14 TC 10 Z9 10 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 MAY PY 1994 VL 65 IS 5 SU 5 BP A49 EP A53 PG 5 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NK645 UT WOS:A1994NK64500010 PM 8018079 ER PT J AU TONG, A HILL, RC TRIPP, L WEBB, JT AF TONG, A HILL, RC TRIPP, L WEBB, JT TI THE EFFECT OF HEAD AND BODY POSITION ON +G(Z), ACCELERATION TOLERANCE SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID FIGHTER AB It has been suggested there is a relationship between acceleration-induced loss of consciousness (G-LOC) and head/body position. A two-part investigation was conducted to determine whether head and body position affects acceleration tolerance. A retrospective analysis of high-G training data (N = 1,914) compared G-LOC occurrence during straight-ahead exposure to a ''check-6'' exposure [10 s at +9 Gz; 6 G/s onset rate; G-suit inflated; anti-G straining maneuver (AGSM) performed]. A prospective study (N = 12) was conducted with acceleration exposures using light loss criteria with subjects in straight-ahead, above, over-the-right shoulder, or over-the-left shoulder positions. Profiles consisted of 0.1 G/s onset-rats runs (no G-suit inflation; relaxed) to a maximum of +9 Gz and 0.5 G/s onset-rate runs (G-suit inflated; AGSM performed) to +9 Gz for up to 26 s. In the retrospective study, no significant difference existed between G-LOC occurrence during straight-ahead (22/1914) and check-6 (32/1914) positions. During the prospective study with AGSM runs, there was no significant difference in the time at maximum G among any of the positions. During the relaxed runs, several comparisons yielded significant differences in peak G attained. These results indicate there may be an underlying physiologic effect of head and body position on acceleration tolerance; however, the AGSM and the G-suit overcame this effect. Although task saturation and distraction may compromise performance of the AGSM and subsequently predispose acceleration-related hazards, a proper AGSM, combined with effective protective systems, remains essential components of a protection strategy. C1 SYST RES LABS INC,WRIGHT PATTERSON AFB,OH. KRUG LIFE SCI INC,BROOKS AFB,TX. ARMSTRONG LAB,AFMC,BROOKS AFB,TX 78235. ARMSTRONG LAB,CREW SYST DIRECTORATE,DIV BIODYNAM & BIOCOMMUN,COMBINED STRESS BRANCH,WRIGHT PATTERSON AFB,OH. 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 MAY PY 1994 VL 65 IS 5 SU 5 BP A90 EP A94 PG 5 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NK645 UT WOS:A1994NK64500017 PM 8018087 ER PT J AU TRAVIS, TW MORGAN, TR AF TRAVIS, TW MORGAN, TR TI US AIR-FORCE POSITIVE-PRESSURE BREATHING ANTI-G SYSTEM (PBG) - SUBJECTIVE HEALTH-EFFECTS AND ACCEPTANCE BY PILOTS SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID PROTECTION AB Current high-performance fighter aircraft subject pilots to acceleration forces that can adversely effect performance and induce unconsciousness during flight. The main strategies to help the fighter pilot sustain +Gz include a pressurized anti-G garment (G-suit), the anti-G straining maneuver, and centrifuge training to optimize this effective, but very fatiguing, maneuver. To improve anti-G support for aircrew, a positive-pressure breathing anti-G system (PBG) has been developed in the COMBAT EDGE program. In order to determine if any acute adverse health effects are occurring from the use of PBG, a survey of 241 (F-15 and F-16) pilots (49 using PBG and 192 using standard methods) was conducted. Questions were asked regarding acute health effects and the impact of PBG on mission accomplishment. With the exception of dry cough, no significant increases in adverse events were found, and acceptance in the F-16 was much greater than in the F-15. C1 HUMAN SYST PROGRAM OFF,BROOKS AFB,TX. RP TRAVIS, TW (reprint author), ARMSTRONG LAB,CREW SYST DIRECTORATE,HSC,YAS,8107 13TH ST,BROOKS AFB,TX 78235, USA. NR 9 TC 10 Z9 12 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 MAY PY 1994 VL 65 IS 5 SU 5 BP A75 EP A79 PG 5 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NK645 UT WOS:A1994NK64500015 PM 8018085 ER PT J AU VIDULICH, MA STRATTON, M CRABTREE, M WILSON, G AF VIDULICH, MA STRATTON, M CRABTREE, M WILSON, G TI PERFORMANCE-BASED AND PHYSIOLOGICAL MEASURES OF SITUATIONAL AWARENESS SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article AB Several situational awareness (SA) and workload measurement techniques were investigated in simulated air-to-ground missions. These techniques included measures of effectiveness, subjective ratings, performance measures, and physiological measures. The results demonstrated strengths and weaknesses in all of these techniques. Measures of effectiveness and subjective ratings suggested that the experimental manipulations were effective in altering SA. The performance measures produced mixed results. Physiological measures detected some intriguing effects in the EEG. Overall, the complexity of the relationship between SA and workload encourages the use of multiple tools in any SA evaluation. C1 LOGICON TECH SERV INC,DAYTON,OH. RP VIDULICH, MA (reprint author), ARMSTRONG LAB,CFHP,CREW SYST DIRECTORATE,DIV HUMAN ENGN,2255 H ST,WRIGHT PATTERSON AFB,OH 45433, USA. NR 14 TC 7 Z9 10 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 MAY PY 1994 VL 65 IS 5 SU 5 BP A7 EP A12 PG 6 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NK645 UT WOS:A1994NK64500004 PM 8018083 ER PT J AU ANDERSON, GK AF ANDERSON, GK TI HUMAN-SYSTEMS-CENTER RESEARCH IN THE US AIR-FORCE - INTRODUCTION SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Editorial Material RP ANDERSON, GK (reprint author), USAF,CTR HUMAN SYST,BROOKS AFB,TX 78235, USA. NR 0 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 MAY PY 1994 VL 65 IS 5 SU 5 BP R5 EP R5 PG 1 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NK645 UT WOS:A1994NK64500001 ER PT J AU SERVE, MP BOMBICK, DD CLEMENS, JM REZEK, TM MCDONALD, GA MATTIE, DR AF SERVE, MP BOMBICK, DD CLEMENS, JM REZEK, TM MCDONALD, GA MATTIE, DR TI THE METABOLISM OF 4-METHYLHEPTANE IN MALE FISCHER-344 RATS SO CHEMOSPHERE LA English DT Article ID VOLATILE AB The urinary metabolites of 4-methylheptane (4-MH) in male Fischer 344 rats, after administering the hydrocarbon by gavage, included 6-hydroxy-4-methyl-2-heptanone, 4-methyl-3,5-heptanediol, di-n-propyl acetic acid, 4-methyl-2,5-heptanediol, 2-methyL-3-hydroxy-1-pentanoic acid, 4-methyl-1-heptanoic acid, 4-methyl-1,4-heptanediol, 4-methyl-2,6,-heptanedioL and 4-methyl-1,6-heptanediol. Metabolism strongly favored the formation of diols and carboxylic acids. The metabolites were identified using gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). Histopathologic examination of the kidneys revealed minimal hyaline droplet formation (alpha2u-globulin nephropathy) in the proximal tubule area. C1 USAF,ARMSTRONG LAB,OCCUPAT & ENVIRONM HLTH DIRECTORATE,DIV TOXICOL,WRIGHT PATTERSON AFB,OH 45433. RP SERVE, MP (reprint author), WRIGHT STATE UNIV,DEPT CHEM,DAYTON,OH 45435, USA. NR 19 TC 1 Z9 1 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0045-6535 J9 CHEMOSPHERE JI Chemosphere PD MAY PY 1994 VL 28 IS 9 BP 1571 EP 1579 DI 10.1016/0045-6535(94)90416-2 PG 9 WC Environmental Sciences SC Environmental Sciences & Ecology GA NT204 UT WOS:A1994NT20400001 ER PT J AU GHENT, WS OLSEN, GN HORNUNG, CA BOLTON, JWR WEIMAN, DS AF GHENT, WS OLSEN, GN HORNUNG, CA BOLTON, JWR WEIMAN, DS TI ROUTINELY PERFORMED MULTIGATED BLOOD-POOL IMAGING (MUGA) AS A PREDICTOR OF POSTOPERATIVE COMPLICATIONS OF LUNG RESECTION - A 2-YEAR RETROSPECTIVE SO CHEST LA English DT Article ID RISK SURGICAL PATIENTS; PULMONARY RESECTION; OXYGEN-CONSUMPTION; EXERCISE CAPACITY; CANCER PATIENTS; TOLERANCE; SURGERY AB The results of routinely performed multigated blood pool studies (MUGA) were compared with the presence of postthoracotomy complications in 46 adult men in a retrospective chart review. Pulmonary function measurements were also examined in relation to the presence of complications experienced. There was only one death, but survivable complications were not predicted by the MUGA results. The addition of MUGA as a routine preoperative cardiac screening technique did net result in increased ability to predict postoperative cardiopulmonary complications. C1 UNIV S CAROLINA,SCH MED,DEPT MED,COLUMBIA,SC 29208. WILLIAM JENNINGS BRYAN DORN VET ADM MED CTR,COLUMBIA,SC 29201. WILFORD HALL USAF MED CTR,DEPT CARDIOTHORAC SURG,SAN ANTONIO,TX 78236. UNIV TENNESSEE,MED GRP INC,DEPT SURG,MEMPHIS,TN 38163. NR 14 TC 2 Z9 2 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 MAY PY 1994 VL 105 IS 5 BP 1454 EP 1457 DI 10.1378/chest.105.5.1454 PG 4 WC Critical Care Medicine; Respiratory System SC General & Internal Medicine; Respiratory System GA NL392 UT WOS:A1994NL39200030 PM 8181336 ER PT J AU BUSTAMANTE, MA HENNESSEY, JV TETER, ML STACHLER, RJ WARNER, B AF BUSTAMANTE, MA HENNESSEY, JV TETER, ML STACHLER, RJ WARNER, B TI CLINICAL ACCURACY OF CAPILLARY BLOOD-GLUCOSE MONITORING IN HOSPITALIZED-PATIENTS WITH DIABETES SO DIABETES EDUCATOR LA English DT Article AB This study evaluated the clinical accuracy of capillary blood glucose monitoring (CBGM) performed by nursing personnel on hospitalized patients with diabetes. We compared the results of 80 serum glucose samples obtained in a blinded fashion within 5 minutes of routine capillary glucose measurements performed during the course of clinical care. The CBGM results obtained by a diabetes nurse specialist during endocrine testing procedures were correlated with the serum results. Correlation of CBGM to serum glucose ranged from .74 to .99 depending on the method used. Visual and manual interpretation yielded the lowest correlation and variable accuracy results, per error grid analysis, with 1 in 4 patients having errors of sufficient magnitude that could lead to inappropriate therapy. Monitoring with the AccuChek II(R) blood glucose meter produced the highest correlation and most accurate clinical readings. Bedside blood glucose monitoring of inpatients has a wide range of reliability depending on the method used. C1 USAF,MED CTR,DEPT MED,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 5 Z9 5 U1 0 U2 0 PU AMER ASSOC DIABETES EDUCATORS PI CHICAGO PA STE 1240, 444 NORTH MICHIGAN AVE, CHICAGO, IL 60611-3901 SN 0145-7217 J9 DIABETES EDUCATOR JI Diabetes Educ. PD MAY-JUN PY 1994 VL 20 IS 3 BP 212 EP 215 DI 10.1177/014572179402000306 PG 4 WC Endocrinology & Metabolism; Public, Environmental & Occupational Health SC Endocrinology & Metabolism; Public, Environmental & Occupational Health GA PK108 UT WOS:A1994PK10800004 PM 7851235 ER PT J AU SCOTT, RT BAILEY, SA KOST, ER NEAL, GS HOFMANN, GE ILLIONS, EH AF SCOTT, RT BAILEY, SA KOST, ER NEAL, GS HOFMANN, GE ILLIONS, EH TI COMPARISON OF LEUPROLIDE ACETATE AND HUMAN CHORIONIC-GONADOTROPIN FOR THE INDUCTION OF OVULATION IN CLOMIPHENE CITRATE-STIMULATED CYCLES SO FERTILITY AND STERILITY LA English DT Article DE GONADORELIN; LEUPROLIDE ACETATE; HCG; CLOMIPHENE CITRATE; OVULATION INDUCTION ID OVARIAN HYPERSTIMULATION SYNDROME; LUTEINIZING-HORMONE SURGE; CORPUS-LUTEUM FUNCTION; GRANULOSA-CELLS; PREOVULATORY FOLLICLES; INVITRO FERTILIZATION; TRIGGERING OVULATION; PRIMATE FOLLICLES; AGONIST; PROGESTERONE AB Objective: To examine the relative efficacies of leuprolide acetate (LA) and hCG in inducing ovulation and a normal luteal phase during clomiphene citrate (CC)-stimulated superovulation cycles. Design: Prospective, randomized, blinded, and cross-controlled in consecutive cycles. Setting: Large military tertiary care center. Patients: Twenty-one ovulatory patients undergoing superovulation with CC and IUIs for the treatment of unexplained or male factor infertility. Interventions: Clomiphene citrate (100 mg/d) on cycle days 5 through 9 in both of the study cycles. Administration of 2 mg SC LA in one cycle and 10,000 IU IM hCG in another cycle for induction of the midcycle surge. Main Outcome Measures: Serum LH, FSH, E(2), and P levels every 12 hours for 36 hours after administration of either LA or hCG to characterize the midcycle hormonal dynamics. Luteal phase duration and serum P levels during the midluteal phase were used to estimate the adequacy of the luteal phase. Serial ultrasounds also were done to determine the incidence of luteinized unruptured follicle syndrome. Results: Serum FSH levels in the periovulatory interval were significantly higher after the administration of LA. There were no differences in the periovulatory E(2) or P levels or the incidence of sonographic evidence of ovulation after administration of either LA or hCG. Although midluteal serum P levels were higher in the cycles in which hCG was administered, all 42 treatment cycles had adequate luteal phases as assessed by luteal phase duration and three midluteal P levels. Ongoing pregnancies occurred after both LA- and hCG-stimulated cycles. Conclusion: Leuprolide acetate and hCG were equivalent in their abilities to induce ovulation. Further evaluation of the adequacy of the luteal phase and the ensuing pregnancy rates after LA induction of an endogenous gonadotropin surge are indicated. C1 WILFORD HALL USAF MED CTR,DEPT OBSTET & GYNECOL,DIV REPROD ENDOCRINOL,LACKLAND AFB,TX 78236. BETHESDA HOSP,CTR BETHESDA FERTIL,CINCINNATI,OH. NR 22 TC 16 Z9 16 U1 0 U2 0 PU AMER SOC REPRODUCTIVE MEDICINE PI BIRMINGHAM PA 1209 MONTGOMERY HIGHWAY, BIRMINGHAM, AL 35216-2809 SN 0015-0282 J9 FERTIL STERIL JI Fertil. Steril. PD MAY PY 1994 VL 61 IS 5 BP 872 EP 879 PG 8 WC Obstetrics & Gynecology; Reproductive Biology SC Obstetrics & Gynecology; Reproductive Biology GA NJ202 UT WOS:A1994NJ20200013 PM 8174724 ER PT J AU SCOTT, RT NAVOT, D AF SCOTT, RT NAVOT, D TI ENHANCEMENT OF OVARIAN RESPONSIVENESS WITH MICRODOSES OF GONADOTROPIN-RELEASING-HORMONE AGONIST DURING OVULATION INDUCTION FOR IN-VITRO FERTILIZATION SO FERTILITY AND STERILITY LA English DT Article DE GONADORELIN; LEUPROLIDE ACETATE; HCG; CLOMIPHENE CITRATE; OVULATION INDUCTION ID INVITRO FERTILIZATION; STIMULATION AB Objective: To determine if women who previously had demonstrated poor ovarian responsiveness during ovulation induction for IVF would obtain an improved follicular response by the administration of microdoses of GnRH agonist (GnRH-a). Design: Prospective evaluation using the same patients' previous assisted reproductive technology cycles as historic controls. Setting: Large military tertiary care center. Patients: Thirty four patients who were low responders (peak E(2) < 500 pg/mL [conversion factor to SI unit, 3.67]) during ovulation induction with luteal phase GnRH-a suppression followed by exogenous gonadotropins. Interventions: Follicular phase administration of 20 mu g leuprolide acetate every 12 hours beginning on cycle day 3 and supplemented with exogenous gonadotropins beginning on cycle day 5. Main Outcome Measures: Paired analysis of initial E(2) response, peak E(2) level attained, number of follicles greater than or equal to 16 mm, duration of stimulation, ampules of gonadotropins required, late follicular LH levels, number of mature oocytes retrieved, and fertilization rates. Results: Ovarian responsiveness was enhanced during the microdose GnRH-a stimulation cycle when compared with the previous stimulation cycle. Specifically, the patients had a more rapid rise in E(2) levels, much higher peak E(2) levels, the development of more mature follicles, and the recovery of larger numbers of mature oocytes at the time of retrieval. None of the patients had premature LH surges as evidenced by a significant rise in LH levels or a significant decline in E(2) levels. There were no differences in the fertilization rates. Conclusion: Microdose GnRH-a administration beginning in the early follicular phase may result in an augmented ovarian response when compared with traditional GnRH-a-exogenous gonadotropin stimulations. Additionally, it may decrease gonadotropin requirements while effectively preventing premature LH surges. C1 WILFORD HALL USAF MED CTR,DEPT OBSTET & GYNECOL,DIV REPROD ENDOCRINOL,LACKLAND AFB,TX 78236. NEW YORK MED COLL,DEPT OBSTET & GYNAECOL,DIV REPROD ENDOCRINOL,VALHALLA,NY 10595. NR 13 TC 111 Z9 113 U1 0 U2 0 PU AMER SOC REPRODUCTIVE MEDICINE PI BIRMINGHAM PA 1209 MONTGOMERY HIGHWAY, BIRMINGHAM, AL 35216-2809 SN 0015-0282 J9 FERTIL STERIL JI Fertil. Steril. PD MAY PY 1994 VL 61 IS 5 BP 880 EP 885 PG 6 WC Obstetrics & Gynecology; Reproductive Biology SC Obstetrics & Gynecology; Reproductive Biology GA NJ202 UT WOS:A1994NJ20200014 PM 8174725 ER PT J AU LACY, TJ MCMANIS, SE AF LACY, TJ MCMANIS, SE TI PSYCHOGENIC STRIDOR SO GENERAL HOSPITAL PSYCHIATRY LA English DT Article ID UPPER AIRWAY-OBSTRUCTION; VOCAL-CORD DYSFUNCTION; PSYCHOLOGICAL-FACTORS; ASTHMA; DIAGNOSIS; DISORDERS AB In the past 20 years, several cases have been reported describing an upper airway obstruction reportedly caused by psychological factors. This paper reviews 48 reported cases of ''psychogenic stridor.'' Patients with psychogenic stridor usually present to primary care physicians with symptoms of asthma or stridor unresponsive to conventional treatments. Of the 48 cases reviewed, 52% received a diagnosis of conversion disorder. The obstruction was severe enough to cause intubation and tracheostomies in some patients. In addition, many suffered from the unnecessary side effects of corticosteroids. The literature is reviewed and medical and psychiatric differential diagnosis and treatment are discussed. C1 WILFORD HALL USAF MED CTR,DEPT PSYCHIAT,LACKLAND AFB,TX. NR 46 TC 35 Z9 36 U1 1 U2 2 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 0163-8343 J9 GEN HOSP PSYCHIAT JI Gen. Hosp. Psych. PD MAY PY 1994 VL 16 IS 3 BP 213 EP 223 DI 10.1016/0163-8343(94)90104-X PG 11 WC Psychiatry SC Psychiatry GA NL859 UT WOS:A1994NL85900005 PM 8063089 ER PT J AU LIOU, LL BAYRAKTAROGLU, B AF LIOU, LL BAYRAKTAROGLU, B TI THERMAL-STABILITY ANALYSIS OF ALGAAS/GAAS HETEROJUNCTION BIPOLAR-TRANSISTORS WITH MULTIPLE EMITTER FINGERS SO IEEE TRANSACTIONS ON ELECTRON DEVICES LA English DT Article ID RESISTANCE; TEMPERATURE; SIMULATION AB A numerical electro-thermal model was developed for AlGaAs/GaAs heterojunction bipolar transistors (HBT's) to describe the base current, current gain and output power dependence on junction temperature. The model is applied to microwave HBT devices with multi-emitter fingers. The calculated results of the common-emitter, current-voltage characteristics in the linear active region show a ''current crush'' effect due to inherent nonuniform junction temperature, current density and current gain distribution in the device. The formation of highly localized high temperature regions, i.e., hot spots, occur when the device is operating beyond the current-crush point. This thermally induced current instability imposes an upper limit on the power capability of HBT's. The dependence of this effect on various factors is discussed. These factors include the intrinsic parameters such as the base current ideality factor, the ''apparent'' valence band discontinuity, and the temperature coefficient of the emitter-base turn-on voltage, as well as the extrinsic factors such as the emitter contact specific resistance, the substrate thermal conductivity and the heat source layout. RP LIOU, LL (reprint author), USAF,WRIGHT LAB,SOLID STATE ELECTR DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433, USA. NR 20 TC 39 Z9 39 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 MAY PY 1994 VL 41 IS 5 BP 629 EP 636 DI 10.1109/16.285008 PG 8 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA NN185 UT WOS:A1994NN18500001 ER PT J AU MARTINEZ, E SHUR, M SCHUERMEYER, F AF MARTINEZ, E SHUR, M SCHUERMEYER, F TI HETEROSTRUCTURE INSULATED GATE FIELD-EFFECT TRANSISTORS OPERATED IN HOT-ELECTRON REGIME SO IEEE TRANSACTIONS ON ELECTRON DEVICES LA English DT Note ID NEGATIVE DIFFERENTIAL RESISTANCE; HIGH-FREQUENCY CHARACTERISTICS; REAL-SPACE TRANSFER AB The experimental study of the hot-electron, real-space transfer regime of operation in the Al.7Ga.3As/ln.2Ga.8As/GaAs heterostructure insulated gate field effect transistors (HIGFET's) demonstrates that the device transconductance in this regime of operation can be more than one order of magnitude higher than in the conventional mode of operation. In this hot-electron regime of operation, the drain-to-source voltage acts as the input voltage, and the gate current as the output current. The reason for the observed large transconductance is a large conduction band discontinuity between the Al.7Ga.3As and In.2Ga.8As which causes the real space transfer at higher electron energies leading to a more rapid increase of the gate current with an increase in the drain-to-source voltage. C1 UNIV VIRGINIA,DEPT ELECT ENGN,CHARLOTTESVILLE,VA 22903. RP MARTINEZ, E (reprint author), USAF,SOLID STATE ELECTR TECHNOL DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433, USA. NR 12 TC 5 Z9 5 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 MAY PY 1994 VL 41 IS 5 BP 854 EP 856 DI 10.1109/16.285045 PG 3 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA NN185 UT WOS:A1994NN18500037 ER PT J AU GILMOUR, CA AF GILMOUR, CA TI WORKING BEYOND TRADITIONAL PARADIGMS THROUGH TEAMWORK SO INDUSTRIAL ENGINEERING LA English DT Article RP GILMOUR, CA (reprint author), USAF,WASHINGTON,DC 20330, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU INST INDUSTRIAL ENGINEERS PI NORCROSS PA 25 TECHNOLOGY PARK/ATLANTA, NORCROSS, GA 30092 SN 0019-8234 J9 IND ENG PD MAY PY 1994 VL 26 IS 5 BP 42 EP 43 PG 2 WC Engineering, Industrial SC Engineering GA NJ924 UT WOS:A1994NJ92400010 ER PT J AU YEH, HH HSU, CS BANDA, SS AF YEH, HH HSU, CS BANDA, SS TI FIXED-ORDER H-INFINITY COMPENSATOR DESIGN SO INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL LA English DT Article DE COMPENSATOR; RICCATI INEQUALITY; H-INFINITY ID PERFORMANCE AB A method is presented for the construction of fixed-order compensators to provide H(infinity) norm constraint for linear control systems with exogenous disturbances. The method is based on the celebrated bounded-real lemma that predicates the H(infinity) norm constraint via a Riccati inequality. The synthesis of fixed-order controllers whose dimensions are less than the order of a given plant, is demonstrated by a set of sufficient conditions along with a numerical algorithm. C1 WRIGHT LAB,WL FIGC,WRIGHT PATTERSON AFB,OH 45433. NR 15 TC 1 Z9 1 U1 0 U2 0 PU JOHN WILEY & SONS LTD PI W SUSSEX PA BAFFINS LANE CHICHESTER, W SUSSEX, ENGLAND PO19 1UD SN 1049-8923 J9 INT J ROBUST NONLIN JI Int. J. Robust Nonlinear Control PD MAY-JUN PY 1994 VL 4 IS 3 BP 363 EP 369 DI 10.1002/rnc.4590040304 PG 7 WC Automation & Control Systems; Engineering, Electrical & Electronic; Mathematics, Applied SC Automation & Control Systems; Engineering; Mathematics GA NN425 UT WOS:A1994NN42500003 ER PT J AU TRIPP, LD LENNINGS, TJ SEAWORTH, JF HOWELL, LL GOODYEAR, C AF TRIPP, LD LENNINGS, TJ SEAWORTH, JF HOWELL, LL GOODYEAR, C TI LONG-DURATION +GZ ACCELERATION ON CARDIAC VOLUMES DETERMINED BY 2-DIMENSIONAL ECHOCARDIOGRAPHY SO JOURNAL OF CLINICAL PHARMACOLOGY LA English DT Article; Proceedings Paper CT 12th Frontiers Symposium: Pharmacology Beyond Earths Boundaries CY MAY 06, 1992 CL NASA, JOHNSON SPACE CTR, HOUSTON, TX HO NASA, JOHNSON SPACE CTR AB To enhance protection of humans exposed to long-duration low-gravity environments such as the Space Shuttle and National Aerospace Plane during re-entry or in the short-duration high-+Gz environment of fighter aircraft, the effects of +Gz acceleration on cardiovascular hemodynamics must be understood. This study reports the use of two-dimensional echocardiography in normal men during +Gz acceleration. The heart's position in relation to the chest did not change during acceleration up to +7 Gz. The success in maintaining high-quality images during exposures to G-forces of this magnitude may be attributed to the relatively low rate of G onset. End-diastolic volumes (EDV) and stroke volumes (SV) decreased during a +Gz acceleration ramp that increased until the subject experienced peripheral light loss (PLL) (P <.05). An inflated G-suit partially counteracted this effect. By 30 seconds of a +3 Gz acceleration plateau, the protective effects of the inflated G-suit to maintain EDV is lost and the EDV of the inflated G-suit was lower than the EDV of the uninflated G-suit (P <.05). C1 UNIV ILLINOIS,CHICAGO,IL. WILFORD HALL USAF MED CTR,SAN ANTONIO,TX 78236. FLIGHT MED,TYNDALL AFB,FL. LOGICON TECH SERV,DAYTON,OH. RP TRIPP, LD (reprint author), SYST RES LABS INC,DAYTON,OH 45440, USA. NR 14 TC 2 Z9 2 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 MAY PY 1994 VL 34 IS 5 BP 484 EP 488 PG 5 WC Pharmacology & Pharmacy SC Pharmacology & Pharmacy GA NL960 UT WOS:A1994NL96000017 PM 8089260 ER PT J AU CASTRO, GW HOUSTON, G WEYRAUCH, C AF CASTRO, GW HOUSTON, G WEYRAUCH, C TI PERIPHERAL ODONTOMA - REPORT OF CASE AND REVIEW OF LITERATURE SO JOURNAL OF DENTISTRY FOR CHILDREN LA English DT Article ID ODONTOGENIC-TUMORS C1 WILFORD HALL USAF MED CTR,DEPT ORAL PATHOL,LACKLAND AFB,TX 78236. WILFORD HALL USAF MED CTR,DEPT GEN DENT,LACKLAND AFB,TX 78236. NR 21 TC 9 Z9 9 U1 0 U2 0 PU AMER SOC DENTISTRY CHILD PI CHICAGO PA JOHN HANCOCK CENTER, 875 N MICHIGAN AVE, STE 4040, CHICAGO, IL 60611-1901 SN 0022-0353 J9 J DENT CHILD JI J. Dent. Child. PD MAY-JUN PY 1994 VL 61 IS 3 BP 209 EP 213 PG 5 WC Dentistry, Oral Surgery & Medicine; Pediatrics SC Dentistry, Oral Surgery & Medicine; Pediatrics GA NW697 UT WOS:A1994NW69700011 ER PT J AU SOTNIKOV, VI SCHRIVER, D ASHOURABDALLA, M ERNSTMEYER, J AF SOTNIKOV, VI SCHRIVER, D ASHOURABDALLA, M ERNSTMEYER, J TI EXCITATION OF SIDE-BAND EMISSIONS BY A MODULATED ELECTRON-BEAM DURING THE CHARGE-2B MISSION SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article ID VLF TRANSMITTER SIGNALS; SATELLITE; PLASMA AB Sideband wave emissions are secondary peaks in wave power observed at frequencies above and below the primary peak. Observed sideband amplitudes are usually reduced compared to the primary wave amplitude. During the recent CHARGE 2B ionospheric rocket mission, sideband waves were observed during an electron beam injection experiment. The beam current was modulated causing a peak in wave power at the modulation frequency and at certain times sidebands were observed along with the primary wave emission. A nonlinear coupling mechanism between the primary wave and a lower-frequency wave is explored here to explain the presence of the sideband emissions. Comparison of the theoretical results with the wave data confirm this mechanism as a viable explanation for the observed sidebands. C1 USAF,ROME LAB,BEDFORD,MA 01731. RP SOTNIKOV, VI (reprint author), UNIV CALIF LOS ANGELES,INST GEOPHYS & PLANETARY PHYS,LOS ANGELES,CA 90024, USA. NR 10 TC 3 Z9 3 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 MAY 1 PY 1994 VL 99 IS A5 BP 8917 EP 8923 DI 10.1029/93JA03024 PG 7 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA NK217 UT WOS:A1994NK21700035 ER PT J AU KATZ, I MELCHIONI, E MANDELL, M OBERHARDT, M THOMPSON, D NEUBERT, T GILCHRIST, B BONIFAZI, C AF KATZ, I MELCHIONI, E MANDELL, M OBERHARDT, M THOMPSON, D NEUBERT, T GILCHRIST, B BONIFAZI, C TI OBSERVATIONS OF IONOSPHERE HEATING IN THE TSS-1 SUBSATELLITE PRESHEATH SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article AB The first flight of the Tethered Satellite System (TSS- 1) was to investigate the mechanical and electrical dynamics of a conducting satellite deployed from the orbiter via a tether whose core was a conducting wire [Dobrowolny and Melchioni, 1993; Dobrowolny, 1987; Dobrowolny and Stone, 1994). In the TSS-1 system the satellite deployed from the orbiter radially away from the Earth. The relative motion between the tether and Earth's magnetic field generated an electromotive force (EMF) that is the product of orbiter velocity, Earth's magnetic field, and the length of the deployed tether. This EMF drove a current through the tether. Electrons were collected on the satellite's electrically conductive skin and traveled through the tether to the orbiter, where they either went to orbiter structural ground or were emitted into the ionosphere via active electron emission. During TSS-1 this electron emission was accomplished mainly by the 100 mA, 1-keV fast pulsed electron gun (FPEG) of the shuttle electrodynamic tether system (SETS) (Williamson et al., 1988; Banks et al., 1994; V. M. Aguero et al., manuscript in preparation, 1994]. The FPEG electron emission was much higher than either ambient ion collection at the orbiter end or electron collection at the satellite. Potentials of the orbiter with respect to the ambient plasma were obtained from measurements from the Shuttle Potential and Return Electron Experiment (SPREE) (Oberhardt et al., 1993a, b, 1994), the SETS tether current voltage monitor (Thompson et al., 1993), and the Agenzia Spaziale Italiana deployer and satellite core equipment (Bonifazi et al., 1988, 1994). Despite the limited tether deployment length of 268 m the TSS-1 system proved capable, during certain events. of generating satellite potentials sufficient to illuminate a previously unexplored aspect of plasma physics: that of an ion repelling, electron attracting, moving probe in a magnetoplasma. During such events the satellite boom-mounted Langmuir probe flown as part of the Research on Electrodynamic Tethers experiment (Dobrowolny et al., 1994) measured an increase in the electron plasma temperature in the quasi-neutral ionospheric region beyond the satellite sheath. This observed heating of the presheath electrons was distinctly different from the acceleration of the electrons in the sheath, which was also observed when the sheath expanded such that the probe was completely in the sheath. We show that the observed elevated electron temperatures are consistent with the formation of a Bohm stable electron collecting sheath. C1 AGENZIA SPAZIALE ITALIANA,I-00198 ROME,ITALY. CNR,IST FIS SPAZIO INTERPLANETARIO,I-00044 FRASCATI,ITALY. USAF,GEOPHYS DIRECTORATE,PHILLIPS LAB,DIV SPACE PHYS,BEDFORD,MA 01730. UNIV MICHIGAN,SPACE PHYS RES LAB,ANN ARBOR,MI 48109. UTAH STATE UNIV,CTR ATMOSPHER & SPACE SCI,LOGAN,UT 84322. RP KATZ, I (reprint author), MAXWELL LABS INC,S-CUBED DIV,3398 CARMEL MT RD,SAN DIEGO,CA 92121, USA. NR 20 TC 8 Z9 8 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 MAY 1 PY 1994 VL 99 IS A5 BP 8961 EP 8969 DI 10.1029/94JA00379 PG 9 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA NK217 UT WOS:A1994NK21700039 ER PT J AU ADAMS, RJ BUFFINGTON, JM BANDA, SS AF ADAMS, RJ BUFFINGTON, JM BANDA, SS TI IMPLEMENTATION OF A FULL-ENVELOPE CONTROLLER FOR A HIGH-PERFORMANCE AIRCRAFT SO JOURNAL OF GUIDANCE CONTROL AND DYNAMICS LA English DT Article AB The design, implementation, and evaluation of a full-envelope control system for the AIAA controls design challenge aircraft is presented. The control problem is divided into separate longitudinal and lateral/directional designs. The longitudinal controller is a Mach number and night path angle command system, and bank angle is commanded through the lateral/directional autopilot. A cross-axis filter minimizes transient errors during coupled maneuvers. Proportional plus integral plus derivative structure is built into a linear quadratic synthesis problem to generate state feedback gains. An implementable output feedback solution is found through a linear transformation of the state feedback gain matrix. The control system is gain scheduled with dynamic pressure through polynomial curve fits of linear point design gains. Required maneuvers are demonstrated within design specifications except in cases where the physical limitations of the aircraft restrict achievable performance. RP ADAMS, RJ (reprint author), WRIGHT LAB,FIGC,FLIGHT DYNAM DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433, USA. NR 7 TC 4 Z9 4 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 MAY-JUN PY 1994 VL 17 IS 3 BP 578 EP 583 DI 10.2514/3.21236 PG 6 WC Engineering, Aerospace; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA NM866 UT WOS:A1994NM86600021 ER PT J AU STECH, DJ AF STECH, DJ TI H-2 APPROACH FOR OPTIMALLY TUNING PASSIVE VIBRATION ABSORBERS TO FLEXIBLE STRUCTURES SO JOURNAL OF GUIDANCE CONTROL AND DYNAMICS LA English DT Note ID DESIGN RP STECH, DJ (reprint author), USAF,FRANK J SEILER RES LAB,COLORADO SPRINGS,CO 80840, USA. NR 8 TC 8 Z9 9 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 MAY-JUN PY 1994 VL 17 IS 3 BP 636 EP 638 DI 10.2514/3.21249 PG 3 WC Engineering, Aerospace; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA NM866 UT WOS:A1994NM86600034 ER PT J AU JOHNSTON, JM JANSEN, GR ANDERSON, J KENDALL, P AF JOHNSTON, JM JANSEN, GR ANDERSON, J KENDALL, P TI COMPARISON OF GROUP DIET INSTRUCTION TO A SELF-DIRECTED EDUCATION-PROGRAM FOR CHOLESTEROL REDUCTION SO JOURNAL OF NUTRITION EDUCATION LA English DT Article AB The National Cholesterol Education Program has alerted the public to the risks associated with high levels of serum cholesterol. As a result there has been a considerable increase in the number of individuals seeking dietary advice. This increasing client load has raised questions as to the best educational approach or method to use. The objective of this study was to examine the effectiveness of two approaches to nutrition education. The approaches examined were group diet instruction and Self-Care for a Healthy Heart (SC) - a self-directed diet education program, developed specifically for this study. One hundred and forty-seven men and women aged 25-75, who had been identified as ''at-risk'' for developing coronary artery disease due to total serum cholesterol levels (TC) in excess of 200 mg/dL and/or a TC to HDL-cholesterol ratio (TC/HDL-C) greater than 4.5, took part in this 12-week study. Group diet instruction was given to 73 individuals and resulted in a significant decrease in TC (11.2%), while the 74 individuals assigned to SC demonstrated significant decreases in TC (17.6%) and TC/HDL-C ratio (12.6%). The results of this study suggest that a well-designed self-care approach has the potential to be a viable alternative to group diet instruction. RP JOHNSTON, JM (reprint author), USAF ACAD,USAFA DFB,COLORADO SPRINGS,CO 80840, USA. NR 0 TC 4 Z9 4 U1 0 U2 0 PU DECKER PERIODICALS INC PI HAMILTON PA 4 HUGHSON STREET SOUTH PO BOX 620, LCD 1, HAMILTON ON L8N 3K7, CANADA SN 0022-3182 J9 J NUTR EDUC JI J. Nutr. Educ. PD MAY-JUN PY 1994 VL 26 IS 3 BP 140 EP 145 PG 6 WC Education, Scientific Disciplines; Nutrition & Dietetics SC Education & Educational Research; Nutrition & Dietetics GA NX470 UT WOS:A1994NX47000005 ER PT J AU OPALSKI, FA MALL, S AF OPALSKI, FA MALL, S TI TENSION-COMPRESSION FATIGUE BEHAVIOR OF A SILICON-CARBIDE CALCIUM-ALUMINOSILICATE CERAMIC-MATRIX COMPOSITE SO JOURNAL OF REINFORCED PLASTICS AND COMPOSITES LA English DT Article ID GLASS AB The fatigue behavior of a silicon carbide fiber reinforced glass ceramic matrix composite, SiC/CAS subjected to tension-compression cycling was investigated. Two laminate lay-ups were studied - cross-ply, [0/90]2, and unidirectional, [0]16. At first, the fatigue limit based on one million cycles was established for a tension-tension fatigue condition. Then, compression cycling was superimposed on this measured fatigue limit. The addition of this compression loading resulted in the development of longitudinal cracks parallel to the loading direction. This resulted in an increased amount of damage and ultimately led to total specimen failure. The larger the magnitude of the compression cycle, the earlier the development of longitudinal cracks occurred and, consequently, the earlier failure occurred. This behavior was due to the inherently poor interfacial bond between matrix and fiber of the tested ceramic matrix composites. C1 USAF,INST TECHNOL,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433. NR 16 TC 13 Z9 14 U1 1 U2 7 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 MAY PY 1994 VL 13 IS 5 BP 420 EP 438 DI 10.1177/073168449401300503 PG 19 WC Materials Science, Composites; Polymer Science SC Materials Science; Polymer Science GA NK774 UT WOS:A1994NK77400003 ER PT J AU MCKINLEY, RC WEBER, DL AF MCKINLEY, RC WEBER, DL TI DETECTION AND RECOGNITION OF REPEATED TONES AND TONAL PATTERNS SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA LA English DT Article ID COMPLEX SOUND; DISCRIMINATION AB This study examined the effect of multiple presentations on signal detection and on signal recognition (identifying one signal from a set of four possible signals) for three different sets of signals. One set was four sinusoids (100-ms duration, frequencies of 707, 1000, 1414, and 2000 Hz). Two sets contained tonal patterns each made of a sequence of seven, 100-ms, sinusoidal components. In the first set, the four patterns consisted of the same seven sinusoids in different orders. In the second set, the four patterns had the same order of relative frequencies, but had frequencies from different 1/4 oct bands centered at 707, 1000, 1414, and 2000 Hz. All stimuli were adjusted to be equally detectable in the presence of a continuous white noise (eta(0)=20 dB SPL). Each trial contained 1, 2, 4, 8, or 16 presentations of a given signal plus noise (probability of a signal was 0.5) or noise alone. Detectability of the sinusoids generally increased as the square root of the number of presentations; detectability for the tonal patterns increased at a slower rate. Recognition was generally poorer than predicted by the recognition theorem [S. J. Starr, C. E. Metz, L. B. Lusted, and D. J. Goodenough, Radiology 116, 533-538 (1975)] and increased with multiple presentations only as much as expected from the increase in signal detectability. C1 WRIGHT STATE UNIV,DEPT PSYCHOL,DAYTON,OH 45435. RP MCKINLEY, RC (reprint author), AL OEBN,2610 7TH ST,WRIGHT PATTERSON AFB,OH 45433, USA. NR 16 TC 1 Z9 1 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 MAY PY 1994 VL 95 IS 5 BP 2642 EP 2651 DI 10.1121/1.409833 PN 1 PG 10 WC Acoustics; Audiology & Speech-Language Pathology SC Acoustics; Audiology & Speech-Language Pathology GA NK799 UT WOS:A1994NK79900041 PM 8207137 ER PT J AU SMITH, JB HANSEN, CD ZONE, JJ AF SMITH, JB HANSEN, CD ZONE, JJ TI POTASSIUM-IODIDE IN THE TREATMENT OF DISSEMINATED GRANULOMA-ANNULARE SO JOURNAL OF THE AMERICAN ACADEMY OF DERMATOLOGY LA English DT Note ID HISTOPATHOLOGY; RESOLUTION; THERAPY C1 UNIV UTAH, SCH MED, DEPT INTERNAL MED, DIV DERMATOL, SALT LAKE CITY, UT 84112 USA. VET ADM MED CTR, DERMATOL SECT, SALT LAKE CITY, UT 84148 USA. USAF, HILL HOSP, DEPT EMERGENCY, HILL AFB, UT USA. FU NCRR NIH HHS [M01-RR-00064] NR 20 TC 15 Z9 16 U1 0 U2 0 PU MOSBY-ELSEVIER PI NEW YORK PA 360 PARK AVENUE SOUTH, NEW YORK, NY 10010-1710 USA SN 0190-9622 J9 J AM ACAD DERMATOL JI J. Am. Acad. Dermatol. PD MAY PY 1994 VL 30 IS 5 BP 791 EP 792 PN 1 PG 2 WC Dermatology SC Dermatology GA NL044 UT WOS:A1994NL04400018 PM 8176023 ER PT J AU PUFFER, RL AF PUFFER, RL TI D-DAY, JUNE 6, 1944 - THE CLIMACTIC BATTLE OF WORLD-WAR-II - AMBROSE,SE SO LIBRARY JOURNAL LA English DT Book Review RP PUFFER, RL (reprint author), USAF,FORCE HIST PROG,EDWARDS AFB,CA, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU BOWKER MAGAZINE GROUP CAHNERS MAGAZINE DIVISION PI NEW YORK PA 249 W 17TH ST, NEW YORK, NY 10011 SN 0363-0277 J9 LIBR J JI Libr. J. PD MAY 1 PY 1994 VL 119 IS 8 BP 119 EP 119 PG 1 WC Information Science & Library Science SC Information Science & Library Science GA NJ351 UT WOS:A1994NJ35100121 ER PT J AU BUNNING, TJ VEZIE, DL LLOYD, PF HAALAND, PD THOMAS, EL ADAMS, WW AF BUNNING, TJ VEZIE, DL LLOYD, PF HAALAND, PD THOMAS, EL ADAMS, WW TI CHOLESTERIC LIQUID-CRYSTALS - IMAGE-CONTRAST IN THE TEM SO LIQUID CRYSTALS LA English DT Article ID RESOLUTION ELECTRON-MICROSCOPY; CELLULOSE-ACETATE; POLYMERS; DEFECTS; PHASES; FILMS AB Bright-field image contrast of thermotropic cholesteric liquid crystalline materials in the transmission electron microscope (TEM) is investigated. Possible sources of contrast for these systems are discussed in terms of their molecular anisotropy. A cholesteric side-chain liquid crystalline compound was investigated with TEM, low voltage high resolution scanning electron microscopy (LVHRSEM), and atomic force microscopy (AFM) to determine the origin of the strong contrast observed in these systems using bright-field transmission electron microscopy. Initial contrast of thin microtomed sections, as viewed with TEM low dose techniques and an image intensifier, was much weaker than observed under normal viewing conditions. The periodic steady state contrast typically observed for these materials is the result of beam damage. Furthermore, the surface of microtomed samples (parallel to the cholesteric helical axis) is corrugated with a periodicity of 1/2 the pitch due to a preferred fracture path in the glassy cholesteric state. AFM profile analysis shows an average peak to valley height of approximately 20-25 nm. AFM of free surfaces from aligned films also indicates a corrugation with a periodicity equal to 1/2 the pitch with substantially smaller average corrugation depths. TEM indicates a series of + 1/2 and - 1/2 disclination lines at the surface due to a rotation of the preferred helix direction parallel to the surface, consistent with previously reported models. C1 MIT,DEPT MAT SCI & ENGN,CAMBRIDGE,MA 02139. UES INC,DAYTON,OH 45432. LAWRENCE ASSOCIATES INC,DAYTON,OH 45431. RP BUNNING, TJ (reprint author), WRIGHT LAB,MAT DIRECTORATE,MLPJ,BLDG 651,3005 P ST,STE 1,WRIGHT PATTERSON AFB,OH 45433, USA. RI Adams, Wade/A-7305-2010 NR 26 TC 36 Z9 36 U1 0 U2 3 PU TAYLOR & FRANCIS LTD PI LONDON PA ONE GUNDPOWDER SQUARE, LONDON, ENGLAND EC4A 3DE SN 0267-8292 J9 LIQ CRYST JI Liq. Cryst. PD MAY PY 1994 VL 16 IS 5 BP 769 EP 781 DI 10.1080/02678299408027849 PG 13 WC Chemistry, Multidisciplinary; Crystallography; Materials Science, Multidisciplinary SC Chemistry; Crystallography; Materials Science GA NK325 UT WOS:A1994NK32500005 ER PT J AU JACOBS, LJ LEE, XG AF JACOBS, LJ LEE, XG TI AN INTEGRAL-EQUATION METHOD IN DYNAMIC FRACTURE-MECHANICS SO MECHANICS RESEARCH COMMUNICATIONS LA English DT Article ID CRACK-PROPAGATION; EXTENSION; FIELD AB This paper contains a study of the problems of crack propagation under static stresses and under transient stress waves. Within the assumption of linear elastic fracture mechanics, an integral-equation method has been developed for the analysis of these problems. The method has been applied to: (a) the determination of the stress intensity factor at a given loading and a crack-tip velocity and (b) the determination of the crack-tip motion under a given transient loading. C1 APPL RES ASSOCIATES INC,TYNDALL AFB,FL 32403. RP JACOBS, LJ (reprint author), GEORGIA INST TECHNOL,ATLANTA,GA 30332, USA. OI Jacobs, Laurence/0000-0002-0358-7973 NR 23 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 0093-6413 J9 MECH RES COMMUN JI Mech. Res. Commun. PD MAY-JUN PY 1994 VL 21 IS 3 BP 255 EP 267 DI 10.1016/0093-6413(94)90076-0 PG 13 WC Mechanics SC Mechanics GA NH606 UT WOS:A1994NH60600007 ER PT J AU JOHNSON, ME AF JOHNSON, ME TI THE COST-EFFECTIVENESS OF AIR-FORCE OPTOMETRY SO MILITARY MEDICINE LA English DT Article AB A study was performed which attempted to assess the relative value of a military optometric practice and to provide epidemiological information on ocular pathologies typical in that practice setting. A mock billing system was employed which assessed fees against patient examinations and procedures using Current Procedural Terminology codes. The fees were determined from a survey of the fee structures of local optometrists. The study showed that the military optometric practice was cost effective in relation to the cost that would be incurred through civilian referral. It also demonstrated that military optometric practice is full in scope and encounters a wide variety of pathological entities above and beyond standard refractive modalities. RP JOHNSON, ME (reprint author), SGHFO,340 MAGNOLIA AVE,325TH MED GRP,TYNDALL AFB,FL 32403, 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 MAY PY 1994 VL 159 IS 5 BP 383 EP 385 PG 3 WC Medicine, General & Internal SC General & Internal Medicine GA PH155 UT WOS:A1994PH15500009 PM 14620407 ER PT J AU JOHANNIGMAN, JA PUTNAM, AT AF JOHANNIGMAN, JA PUTNAM, AT TI CLINICAL-EVALUATION OF THE IMPACT UNI-VENT-750 SO MILITARY MEDICINE LA English DT Article AB The ability to provide mechanical ventilation is an important aspect of combat casualty care. Recent advances in ventilator technology have led to the introduction of a new generation of lightweight and compact ventilators which may be suited for combat care applications. We evaluated the ability of the Impact Uni-Vent 750 to provide acute ventilatory care for intensive care unit (ICU) patients. The Uni-Vent 750 is a portable ventilator which was initially available during Operation Desert Storm. Nine patients in the Surgical ICU at Wilford Hall Medical Center were transitioned from a standard ICU ventilator to the Uni-Vent 750 using the same ventilator settings. Hemodynamic and respiratory parameters were monitored for a consecutive 5-hour period while the patients were on the Uni-Vent 750. There were no clinically or statistically significant differences noted during the period of ventilation by the Uni-Vent. The results for this study suggest that the Uni-Vent 750 may be suitable for providing acute ventilatory support for mechanically ventilated patients. RP JOHANNIGMAN, JA (reprint author), WILFORD HALL USAF MED CTR,DEPT SURG,DIV TRAUMA & CRIT CARE,LACKLAND AFB,TX, USA. NR 0 TC 2 Z9 2 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 MAY PY 1994 VL 159 IS 5 BP 403 EP 408 PG 6 WC Medicine, General & Internal SC General & Internal Medicine GA PH155 UT WOS:A1994PH15500014 PM 14620412 ER PT J AU SOLOMON, DH BAROHN, RJ BAZAN, C GRISSOM, J AF SOLOMON, DH BAROHN, RJ BAZAN, C GRISSOM, J TI THE THALAMIC ATAXIA SYNDROME SO NEUROLOGY LA English DT Article ID LACUNAR INFARCTS; HEMIPARESIS; LESIONS; APHASIA; NUCLEUS; SYSTEM AB We identified 10 patients with contralateral ataxia and hemisensory loss following unilateral thalamic lesions. Seven patients had ischemic infarcts, and three had hemorrhages. Hemiparesis, when present, was only a transient finding, whereas ataxia, dysmetria, dysdiadochokinesia, rebound, and hemisensory loss persisted. Two patients had cerebellar outflow tremor. Another developed a severe Dejerine-Roussy pain syndrome. Four patients had lesions of the dominant hemisphere, and two had visual field deficits. None had mutism, aphasia, or astasia. On radiographic evaluation, all patients had lesions in the mid to posterior thalamus, a localization consistent with a lesion of the dentatorubrothalamic and ascending sensory pathways into the thalamus. The thalamic ataxia syndrome has a distinct localizing value that is distinguishable from the ataxic hemiparesis syndrome. Strokes occurring in the ventral lateral and posterior nuclei of the thalamus produce the clinical picture of contralateral ''cerebellar'' dysfunction and sensory loss with only transient weakness. C1 UNIV TEXAS,HLTH SCI CTR,DEPT RADIOL,SAN ANTONIO,TX 78284. UNIV TEXAS,SW MED CTR,DEPT NEUROL,DALLAS,TX 75235. WILFORD HALL USAF MED CTR,SAN ANTONIO,TX 78236. RP SOLOMON, DH (reprint author), UNIV TEXAS,HLTH SCI CTR,DEPT MED,DIV NEUROL,7703 FLOYD CURL DR,SAN ANTONIO,TX 78284, USA. NR 44 TC 39 Z9 40 U1 0 U2 1 PU LITTLE BROWN CO PI BOSTON PA 34 BEACON STREET, BOSTON, MA 02108-1493 SN 0028-3878 J9 NEUROLOGY JI Neurology PD MAY PY 1994 VL 44 IS 5 BP 810 EP 814 PG 5 WC Clinical Neurology SC Neurosciences & Neurology GA NL811 UT WOS:A1994NL81100004 PM 8190279 ER PT J AU GRIFFIN, C DOUGHERTY, MC YARANDI, H AF GRIFFIN, C DOUGHERTY, MC YARANDI, H TI PELVIC MUSCLES DURING REST - RESPONSES TO PELVIC MUSCLE EXERCISE SO NURSING RESEARCH LA English DT Article ID DYNAMIC CHARACTERISTICS; URINARY-INCONTINENCE AB The purpose of the research was to study pelvic muscle changes in the resting phase between voluntary contractions (during pelvic muscle assessment) and in response to pelvic muscle exercise (PME) through secondary analysis of data. The sample consisted of healthy women (N = 38) aged 35 to 54. Analysis of variance showed a significant difference in resting pressure within each assessment (F = 2.92, p < .04). A significant difference in resting pressures within subjects was found (F = 3.54, p < .02). Within-subject variance suggests exercises performed without a warmup may result in incomplete relaxation prior to contraction. Significant change between baseline and Level 1 of the graded PME program suggests slow relaxation of untrained muscles. Increases in resting pressure at Levels 3 and 4 may be a more accurate reflection of muscle hypertrophy. The results of this research indicate that care should be taken in establishing the point from which changes during contractions are measured. It is recommended that the resting pressure be used. Exercise continued for more than 3 or 4 weeks accounts for nearly all strength gains and explains the increases in resting pressure at PME Levels 3 and 4. C1 UNIV FLORIDA,COLL NURSING,HLTH SCI CTR,GAINESVILLE,FL 32611. UNIV FLORIDA,BIOSTAT UNIT,GAINESVILLE,FL 32611. RP GRIFFIN, C (reprint author), USAF,JACKSONVILLE,AK, USA. FU NINR NIH HHS [NR1115] NR 16 TC 9 Z9 10 U1 0 U2 0 PU AMER J NURSING CO PI NEW YORK PA 555 W 57TH ST, NEW YORK, NY 10019-2961 SN 0044-7781 J9 NURS RES JI Nurs. Res. PD MAY-JUN PY 1994 VL 43 IS 3 BP 164 EP 167 PG 4 WC Nursing SC Nursing GA QG262 UT WOS:A1994QG26200007 PM 8183658 ER PT J AU CLARK, SL SOUTHWICK, J PIVARNIK, JM COTTON, DB HANKINS, GDV PHELAN, JP AF CLARK, SL SOUTHWICK, J PIVARNIK, JM COTTON, DB HANKINS, GDV PHELAN, JP TI COMPARISON OF CARDIAC INDEX IN NORMAL TERM PREGNANCY USING THORACIC ELECTRICAL BIOIMPEDANCE AND OXYGEN EXTRACTION (FICK) TECHNIQUES SO OBSTETRICS AND GYNECOLOGY LA English DT Article ID OUTPUT; THERMODILUTION; BIOIMPEDANCE AB Objective: To correlate cardiac index in normal late third-trimester pregnancy using the thoracic electrical bioimpedance technique with that obtained from the oxygen extraction technique. Methods: Eight carefully screened normal pregnant women underwent assessment of cardiac index using both the thoracic electrical bio-impedance technique and the oxygen extraction technique. Measurements were obtained in various positions. Results: The correlation was good between the thoracic electrical bio-impedance and oxygen extraction techniques in the left lateral (r = 0.915) and right lateral (r = 0.863) positions, and the intercepts at the midpoints of the oxygen extraction data in these positions suggested good absolute correlation as well. Correlation between thoracic electrical bio-impedance and the Fick cardiac index was poor in all other positions. Conclusions: Thoracic electrical bio-impedance cardiac index assessment is influenced by maternal position and must be used with caution in clinical research protocols. This technique appears to be inappropriate for general clinical use during pregnancy. C1 UNIV UTAH,SCH MED,DEPT OBSTET & GYNECOL,INTERMT HLTH CARE PERINATAL CTR,SALT LAKE CITY,UT 84132. BAYLOR COLL MED,HOUSTON,TX 77030. WILFORD HALL USAF MED CTR,SAN ANTONIO,TX. QUEEN VALLEY HOSP,LOS ANGELES,CA. NR 15 TC 32 Z9 32 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 MAY PY 1994 VL 83 IS 5 BP 669 EP 672 PN 1 PG 4 WC Obstetrics & Gynecology SC Obstetrics & Gynecology GA NJ173 UT WOS:A1994NJ17300007 PM 8164923 ER PT J AU SHAW, KD AF SHAW, KD TI OPTIMIZATION OF THE DOUBLY RESONANT OPTICAL PARAMETRIC OSCILLATOR SO OPTICS COMMUNICATIONS LA English DT Article AB The four nonlinear coupled wave equations describing a doubly-resonant degenerate optical parametric oscillator (DROPO) with a Fabry-Perot-type resonator having arbitrary mirror reflectivities are solved exactly, apparently for the first time. The solution makes it possible to predict the behavior of the DROPO under conditions where the usual linearized theory fails. An exact analytical expression for the threshold of oscillation has also been obtained. These results are used to show how the DROPO may be optimized for high conversion efficiency and/or maximum output intensity, and it is shown that 100 percent conversion efficiency is possible. RP SHAW, KD (reprint author), USAF,LIDA,3550 ABERDEEN AVE SE,KIRTLAND AFB,NM 87117, USA. NR 14 TC 3 Z9 3 U1 0 U2 7 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0030-4018 J9 OPT COMMUN JI Opt. Commun. PD MAY 1 PY 1994 VL 107 IS 5-6 BP 395 EP 400 DI 10.1016/0030-4018(94)90354-9 PG 6 WC Optics SC Optics GA NH557 UT WOS:A1994NH55700015 ER PT J AU MICHEL, DT HOBART, WC AF MICHEL, DT HOBART, WC TI TOWARD A UNIFIED MODEL OF PROGRAM BEHAVIOR SO PERFORMANCE EVALUATION LA English DT Article; Proceedings Paper CT 16th IFIP Working Group 7.3 International Symposium on Computer Performance Modeling, Measuring and Evaluation ( Performance 93 ) CY SEP 27-OCT 01, 1993 CL ROME, ITALY SP INT FEDERAT INFORMAT PROC DE PROGRAM BEHAVIOR; MEMORY LOCALITY; ENTROPHY ID CACHE AB In building a unified model of program behavior, the authors characterize spatial, temporal, and structural locality and their relationships to one another. Analysis and modeling of 40 VAX 8200, TI Explorer, and RISC processor traces indicate spatial prefetching actually increases the effectiveness of LRU replacement in exploiting temporal locality rather than decreasing it as might be expected. The lesser known structural locality is also shown to exist in a wide variety of workloads, and its relationship to spatial and temporal locality is also characterized. For the instruction reference stream, structural locality is shown to predict the next instruction to be fetched with higher accuracy than existing dynamic branch prediction techniques. A unified model incorporating all three types of locality is developed and validated by comparing the entropy of synthetically generated traces with that of the actual traces. While the model is accurate in predicting the next type of reference to be made, higherorder dependencies requiring further look-ahead remain to be modeled. C1 USAF,WRIGHT PATTERSON AFB,OH 45433. NR 16 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0166-5316 J9 PERFORM EVALUATION JI Perform. Eval. PD MAY PY 1994 VL 20 IS 1-3 BP 27 EP 44 DI 10.1016/0166-5316(94)90004-3 PG 18 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA NV671 UT WOS:A1994NV67100003 ER PT J AU HALL, RCW RUNDELL, JR HIRSCH, TW AF HALL, RCW RUNDELL, JR HIRSCH, TW TI DEVELOPING A FINANCIALLY VIABLE CONSULTATION-LIAISON SERVICE SO PSYCHOSOMATICS LA English DT Article ID HOSPITAL STAY; PSYCHIATRIC CONSULTATIONS; MEDICAL INPATIENTS; LENGTH; COMORBIDITY; DEPRESSION; ILLNESS; DISORDERS; DELIRIUM; BENEFITS AB As reimbursement for psychiatry changes, general hospital psychiatry divisions, specifically consultation-liaison (C-L) services, will take on increasingly important roles. This article shows how a variety of funding mechanisms have applications in different hospital systems. Although every recommendation does not apply to each hospital, certain important contributions that C-L psychiatry can make, such as updating diagnosis-related group codes and enhancing hospital reimbursement for services appropriately delivered, are reviewed. Specific recommendations that may be helpful in various hospital systems are offered that, individually and in the aggregate, should enhance the position, as well as the financial, research, and clinical base for an effectively managed C-L service. C1 MONARCH HLTH CORP,MARBLEHEAD,MA. USAF,OFF SURGEON GEN,WASHINGTON,DC 20330. ST LOUIS UNIV,SCH MED,DEPT BEHAV MED,ST LOUIS,MO 63104. RP HALL, RCW (reprint author), UNIV FLORIDA,FLORIDA HOSP,CTR PSYCHIAT,601 E ROLLINS ST,ORLANDO,FL 32803, USA. NR 42 TC 7 Z9 7 U1 0 U2 0 PU AMER PSYCHIATRIC ASSOCIATION PI WASHINGTON PA 1400 K ST NW, WASHINGTON, DC 20005 SN 0033-3182 J9 PSYCHOSOMATICS JI Psychosomatics PD MAY-JUN PY 1994 VL 35 IS 3 BP 308 EP 318 PG 11 WC Psychiatry; Psychology SC Psychiatry; Psychology GA NJ604 UT WOS:A1994NJ60400008 PM 8036259 ER PT J AU CUPELLO, JM AF CUPELLO, JM TI A NEW PARADIGM FOR MEASURING TQM PROGRESS SO QUALITY PROGRESS LA English DT Article RP CUPELLO, JM (reprint author), ARMSTRONG LAB,CTR HUMAN SYST,BROOKS AFB,TX, USA. NR 0 TC 2 Z9 2 U1 0 U2 0 PU AMER SOC QUALITY CONTROL-ASQC PI MILWAUKEE PA ASQC MEMBERSHIP MANAGER 611 E. WISCONSIN AVENUE, MILWAUKEE, WI 53202 SN 0033-524X J9 QUAL PROG JI Qual. Prog. PD MAY PY 1994 VL 27 IS 5 BP 79 EP 82 PG 4 WC Engineering, Multidisciplinary; Engineering, Industrial; Management; Operations Research & Management Science SC Engineering; Business & Economics; Operations Research & Management Science GA NK015 UT WOS:A1994NK01500020 ER PT J AU WAGNER, BJ BROWER, AC AF WAGNER, BJ BROWER, AC TI GENERAL-CASE OF THE DAY - GASTRIC HYPERPLASTIC POLYPS SO RADIOGRAPHICS LA English DT Note DE STOMACH; NEOPLASMS C1 WILFORD HALL USAF MED CTR,DEPT RADIOL,LACKLAND AFB,TX 78236. EASTERN VIRGINIA MED SCH,DEPT RADIOL,NORFOLK,VA 23501. NR 12 TC 1 Z9 2 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 MAY PY 1994 VL 14 IS 3 BP 682 EP 685 PG 4 WC Radiology, Nuclear Medicine & Medical Imaging SC Radiology, Nuclear Medicine & Medical Imaging GA NL886 UT WOS:A1994NL88600024 PM 8066282 ER PT J AU GORDON, SC AUSINK, JA BERDINE, RJ AF GORDON, SC AUSINK, JA BERDINE, RJ TI USING EXPERIMENTAL-DESIGN TECHNIQUES FOR SPACECRAFT CONTROL SIMULATION SO SIMULATION LA English DT Article DE LIBRATION; LAGRANGE; STATION-KEEPING; CONTROL; DESIGN OF EXPERIMENTS; EXPERIMENTAL DESIGN; ERROR SOURCES; REGRESSION; ORBITS AB Experimental design techniques are used in this work to minimize the number of computer runs required to test a specific spacecraft control algorithm. These techniques save valuable computer simulation time and also produce a regression equation that approximately relates the inputs (assumed error sources) to the output (the control cost over a period of time). When the input data is coded appropriately, the relative sensitivity of the output to the various inputs can then be judged by the relative magnitude of the coefficients in the computed regression equation. This study is concerned with a spacecraft in orbit near libration (Lagrange) point L1 in the Sun-Earth system. In this orbit, the spacecraft remains between the Sun and the Earth and series as an excellent platform for research relating to the numerous solar effects on the terrestrial environment. Station-keeping using a specified control algorithm is, however, required for this particular type of (unstable) orbit. For a given control routine, error sources, such as tracking errors, solar radiation pressure variations, and planetary mass uncertainties, will have an impact on the station-keeping costs. RP GORDON, SC (reprint author), USAF ACAD,DEPT MATH SCI,COLORADO SPRINGS,CO 80840, USA. NR 7 TC 2 Z9 2 U1 0 U2 0 PU SIMULATION COUNCILS INC PI SAN DIEGO PA PO BOX 17900, SAN DIEGO, CA 92117 SN 0037-5497 J9 SIMULATION JI Simulation PD MAY PY 1994 VL 62 IS 5 BP 303 EP 309 DI 10.1177/003754979406200504 PG 7 WC Computer Science, Interdisciplinary Applications; Computer Science, Software Engineering SC Computer Science GA NN074 UT WOS:A1994NN07400003 ER PT J AU WEITZMAN, PS KESTER, JJ OSTERBERG, U AF WEITZMAN, PS KESTER, JJ OSTERBERG, U TI ELECTRIC-FIELD-INDUCED 2ND-HARMONIC GENERATION IN GERMANIUM DOPED SILICA PLANAR WAVE-GUIDES SO ELECTRONICS LETTERS LA English DT Article DE OPTICAL HARMONIC GENERATION; OPTICAL WAVE-GUIDES; SILICON DIOXIDE ID 2ND-HARMONIC GENERATION; OPTICAL FIBERS AB Instantaneous frequency doubling is demonstrated in germania doped silica planar waveguides deposited on fused silica substrates by quasi-phasematching with an externally applied, periodic DC field. The DC field periodicity which causes frequency doubling corresponds to the beat length between the fundamental and second harmonic light propagating in the waveguide. C1 DARTMOUTH COLL,THAYER SCH ENGN,HANOVER,NH 03755. RP WEITZMAN, PS (reprint author), USAF ACAD,RES LAB,COLORADO SPRINGS,CO 80840, USA. NR 5 TC 9 Z9 9 U1 0 U2 3 PU IEE-INST ELEC ENG PI HERTFORD PA MICHAEL FARADAY HOUSE SIX HILLS WAY STEVENAGE, HERTFORD, ENGLAND SG1 2AY SN 0013-5194 J9 ELECTRON LETT JI Electron. Lett. PD APR 28 PY 1994 VL 30 IS 9 BP 697 EP 698 DI 10.1049/el:19940480 PG 2 WC Engineering, Electrical & Electronic SC Engineering GA NM546 UT WOS:A1994NM54600014 ER PT J AU LAUDERDALE, WJ CHENG, VG WIERSCHKE, SG AF LAUDERDALE, WJ CHENG, VG WIERSCHKE, SG TI CALCULATED INFRARED FREQUENCIES AND INTENSITIES OF THE HO2 RADICAL SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Letter ID ENERGY GRADIENTS; BAND STRENGTH; BASIS-SETS; MANY-BODY; CLUSTER; NU-3 AB G systematic study of basis set and correlation effects on the harmonic frequencies and infrared intensities of the HO2 radical has been conducted. Correlation consistent basis sets were employed at the SCF, MBPT(2) through MBPT(4), and CCSD levels of theory. The basis set effects yield the anticipated trends for the geometries and harmonic frequencies. The MBPT(n) calculations significantly overestimate the infrared intensities for HO2. Even at the CCSD level with the largest basis set used (aug-cc-pVTZ), the intensities are 36.2 (I-1), 41.9 (I-2), and 32.2 km/mol (I-3), overestimating the experimental values by factors of 8.0, 3.2, and 4.1, respectively. Comparison with previous work on HO2 and a discussion of the predictive ability for these methods are made. C1 USAF ACAD,DEPT CHEM,COLORADO SPRINGS,CO 80840. RP LAUDERDALE, WJ (reprint author), USAF ACAD,FRANK J SEILER RES LAB,COLORADO SPRINGS,CO 80840, USA. NR 19 TC 9 Z9 9 U1 0 U2 3 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 APR 28 PY 1994 VL 98 IS 17 BP 4502 EP 4505 DI 10.1021/j100068a005 PG 4 WC Chemistry, Physical SC Chemistry GA NJ538 UT WOS:A1994NJ53800005 ER PT J AU MOZER, JB ZEHNDER, JA AF MOZER, JB ZEHNDER, JA TI CLUSTER-ANALYSIS OF EASTERN NORTH PACIFIC TROPICAL CYCLOGENESIS PRECURSORS SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article ID SEA INTERACTION THEORY; CYCLONES AB Tropical cyclogenesis in the eastern North Pacific is investigated by applying an objective cluster analysis technique to wind and geopotential height data from the 1985 to 1989 hurricane seasons. The first 20 principal components derived from the 850 hPa European Centre for Medium-Range Weather Forecasting global analysis data are used to separate tropical cyclogenesis events into three relatively homogeneous groups. Composites of the height and wind fields for the days prior to cyclogenesis reveal distinct differences in the environment for the three groups. Two of the groups are associated with large-scale height and wind anomalies which lie upstream of the genesis region on the days before tropical cyclones are formed. The remaining group is associated with anomalies to the west of Mexico which provide a favorable environment for tropical cyclogenesis. An examination of the initial locations of the circulations which grew into named storms reveals that the groups associated with the upstream anomalies are characterized by tropical cyclones which formed over a broad range of longitudes, while the group associated with the anomalies in the Pacific contains storms which formed very near the coast of Mexico. C1 UNIV ARIZONA, INST ATMOSPHER PHYS, TUCSON, AZ 85721 USA. RP MOZER, JB (reprint author), USAF, PHILIPS LAB, BEDFORD, MA 01731 USA. NR 19 TC 1 Z9 1 U1 0 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 2169-897X J9 J GEOPHYS RES-ATMOS JI J. Geophys. Res.-Atmos. PD APR 20 PY 1994 VL 99 IS D4 BP 8085 EP 8093 DI 10.1029/93JD03497 PG 9 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA NH263 UT WOS:A1994NH26300003 ER PT J AU KHALED, MM CARLIN, RT TRULOVE, PC EATON, GR EATON, SS AF KHALED, MM CARLIN, RT TRULOVE, PC EATON, GR EATON, SS TI ELECTROCHEMICAL GENERATION AND ELECTRON-PARAMAGNETIC-RESONANCE STUDIES OF C-60(-), C-60(2-), AND C-60(3-) SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID SPIN-RESONANCE; CARBON-ATOMS; C60; BUCKMINSTERFULLERENE; SPECTROMETER; FULLERIDE; DYNAMICS; SPECTRA; ANIONS AB The -1, -2, and -3 anions of C-60 were generated electrochemically in 4:1 toluene-acetonitrile. The visible/near-IR spectra were monitored in situ. Square wave voltammograms and electronic spectra showed that after bulk electrolysis to produce the anions, the following percentages of the starting C-60 concentration could be reoxidized to neutral C-60 in typical data sets: -1 anion, 75%; -2 anion, 66%; -3 anion, 46%. Continuous wave (CW) electron paramagnetic resonance (EPR) spectra of the -1 and -3 anions exhibited broad signals that were temperature dependent. The averaging of anisotropy of the signals between 15 and 60 K is attributed to dynamic Jahn-Teller distortion. Electron spin-echo and saturation recovery EPR data for the -1 anion at 10 and 16 K showed that the electron spin relaxation rates are dependent upon position in the spectrum, which is attributed to variations in the Jahn-Teller distortion. For both the -1 and -3 anion above about 70 K the CW line shape of the EPR signal is electron spin-lattice relaxation rate determined. The EPR data indicate that the -2 anion is diamagnetic. The sharp signals that are observed with varying intensity in the spectra of the -1, -2, and -3 anions have much slower electron spin-lattice relaxation rates than the signals for the -1 and -3 anions. The line shapes for the sharp signal(s) are largely independent of temperature. These signals are assigned to as-yet unidentified species with lower symmetry and slower molecular rotation than the C-60 anions. C1 UNIV DENVER,DEPT CHEM,DENVER,CO 80208. USAF ACAD,FRANK J SEILER RES LAB,COLORADO SPRINGS,CO 80840. OI Eaton, Gareth R/0000-0001-7429-8469; Eaton, Sandra S/0000-0002-2731-7986 NR 54 TC 155 Z9 155 U1 1 U2 7 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 APR 20 PY 1994 VL 116 IS 8 BP 3465 EP 3474 DI 10.1021/ja00087a037 PG 10 WC Chemistry, Multidisciplinary SC Chemistry GA NG889 UT WOS:A1994NG88900037 ER PT J AU WINDUS, TL GORDON, MS DAVIS, LP BURGGRAF, LW AF WINDUS, TL GORDON, MS DAVIS, LP BURGGRAF, LW TI THEORETICAL-STUDY OF PSEUDOROTATION OF PENTACOORDINATED SILICON ANIONS - SIH5-NX(N)(-) (X=F, CL) SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID MOLECULAR-ORBITAL METHODS; ION-CYCLOTRON RESONANCE; INTRINSIC REACTION COORDINATE; GAUSSIAN-TYPE BASIS; GAS-PHASE; NUCLEOPHILIC DISPLACEMENT; PENTAFLUOROSILICATE ANION; MECHANISTIC IMPLICATIONS; SUBSTITUTION-REACTIONS; EXCHANGE EQUILIBRIA AB A thorough ab initio investigation of the pseudorotation of the pentacoordinated silicon anions SiH(5-n)X(n)(-)(X = F, Cl; n = 0-5) is reported. The minima and maxima of each of the systems under consideration are characterized and intrinsic reaction coordinate (IRC) calculations are performed to connect the maxima with corresponding minima. These systems are compared to the Berry pseudorotation mechanism and earlier calculations on these systems. C1 IOWA STATE UNIV SCI & TECHNOL, DEPT CHEM, AMES, IA 50011 USA. USAF, OFF SCI RES, BOLLING AFB, DC 20332 USA. USAF, INST TECHNOL, DEPT ENGN PHYS, WRIGHT PATTERSON AFB, OH 45433 USA. NR 72 TC 43 Z9 43 U1 0 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD APR 20 PY 1994 VL 116 IS 8 BP 3568 EP 3579 DI 10.1021/ja00087a050 PG 12 WC Chemistry, Multidisciplinary SC Chemistry GA NG889 UT WOS:A1994NG88900050 ER PT J AU SON, M SHAHED, AR WERCHAN, PM LEE, JC AF SON, M SHAHED, AR WERCHAN, PM LEE, JC TI C-FOS EXPRESSION IN RAT BRAINS IN RESPONSE TO +GZ-INDUCED CEREBRAL-ISCHEMIA SO FASEB JOURNAL LA English DT Meeting Abstract C1 UNIV TEXAS,HLTH SCI CTR,DEPT BIOCHEM,SAN ANTONIO,TX 78284. ARMSTRONG LAB,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 APR 19 PY 1994 VL 8 IS 7 BP A1302 EP A1302 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA NH516 UT WOS:A1994NH51600467 ER PT J AU CARLSON, JL AF CARLSON, JL TI BIG DREAMS - INTO THE HEART OF CALIFORNIA - BARICH,B SO LIBRARY JOURNAL LA English DT Book Review RP CARLSON, JL (reprint author), VANDENBERG AFB LIB,VANDENBERG AFB,CA 93437, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU BOWKER MAGAZINE GROUP CAHNERS MAGAZINE DIVISION PI NEW YORK PA 249 W 17TH ST, NEW YORK, NY 10011 SN 0363-0277 J9 LIBR J JI Libr. J. PD APR 15 PY 1994 VL 119 IS 7 BP 98 EP 98 PG 1 WC Information Science & Library Science SC Information Science & Library Science GA NF614 UT WOS:A1994NF61400145 ER PT J AU TALWAR, DN LOEHR, JP JOGAI, B AF TALWAR, DN LOEHR, JP JOGAI, B TI COMPARATIVE-STUDY OF BAND-STRUCTURE CALCULATIONS FOR TYPE-II INAS/INXGA1-XSB STRAINED-LAYER SUPERLATTICES SO PHYSICAL REVIEW B LA English DT Article ID ELECTRONIC-PROPERTIES; INFRARED DETECTORS; SEMICONDUCTORS; PHOTOLUMINESCENCE; IMPURITIES AB Short-period InAs/InxGa1-xSb superlattices may allow strong optical transitions in the long-wavelength infrared (> 10 mum) spectral region. Absorption calculations can be difficult, however, because of the strongly type-II interface and because of the large lattice mismatch. We present a comparative study of band-structure calculations for strained-layer type-II InAs/InxGa1-xSb superlattices grown on GaSb. The energy of superlattice band gaps (E(gs)) and the cutoff wavelengths (lambda(c)) are computed in the empirical tight-binding, effective-bond-orbital, and 8X8 k.p models. In the empirical tight-binding model (ETBM) the strain is included by scaling the matrix elements according to Harrison's universal 1/d2 rule and by appropriately modifying the angular dependence. The bond-orbital model (EBOM) and k.p calculations include the strain via the deformation-potential theory. We find in all cases that the superlattice band gap decreases rapidly with increasing x and that the proper inclusion of strain is critical in the ETBM. Our results compare favorably with existing experiments. In addition, we compare directly the results of the EBOM and k.p models. Contrary to expectations, the two models give quite different results for InAs/InSb superlattices. C1 INDIANA UNIV PENN,DEPT PHYS,INDIANA,PA 15705. WRIGHT STATE UNIV,UNIV RES CTR,DAYTON,OH 45435. RP TALWAR, DN (reprint author), WRIGHT LAB,SOLID STATE ELECTR DIRECTORATE,ELRA,WRIGHT PATTERSON AFB,OH 45433, USA. NR 33 TC 28 Z9 28 U1 2 U2 7 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 APR 15 PY 1994 VL 49 IS 15 BP 10345 EP 10353 DI 10.1103/PhysRevB.49.10345 PG 9 WC Physics, Condensed Matter SC Physics GA NJ756 UT WOS:A1994NJ75600034 ER PT J AU REYNOLDS, DC LOOK, DC JOGAI, B STUTZ, CE AF REYNOLDS, DC LOOK, DC JOGAI, B STUTZ, CE TI OBSERVATION OF FREE AND BOUND EXCITONS ASSOCIATED WITH THE 2-DIMENSIONAL ELECTRON-GAS IN MODULATION-DOPED HETEROSTRUCTURES SO PHYSICAL REVIEW B LA English DT Note AB Overlapping bulk and two-dimensional excitons have been observed in modulation-doped heterostructures. Their differing behavior in a magnetic field allows them to be studied separately. Both free and bound excitons, associated with the two-dimensional electron gas, have been observed in the photoluminescence spectra of these structures. These excitons show a reduced binding energy due to screening and are found in a region of the structure where band-gap renormalization occurs due to many-body interactions. The two-dimensional excitons are identified from measurements conducted in applied magnetic fields. C1 WRIGHT LAB,WL ELR,SOLID STATE ELECTR DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RP REYNOLDS, DC (reprint author), WRIGHT STATE UNIV,UNIV RES CTR,DAYTON,OH 45435, USA. NR 5 TC 2 Z9 2 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 APR 15 PY 1994 VL 49 IS 16 BP 11456 EP 11458 DI 10.1103/PhysRevB.49.11456 PG 3 WC Physics, Condensed Matter SC Physics GA NK063 UT WOS:A1994NK06300077 ER PT J AU MATIKAS, TE AF MATIKAS, TE TI ASYMPTOTIC ANALYSIS OF GAUSSIAN FOCUSED ULTRASONIC BEAMS OF CIRCULAR SYMMETRY SO JOURNAL OF PHYSICS D-APPLIED PHYSICS LA English DT Article AB In this paper, a model of a focused beam with circular symmetry is presented. The acoustic field is defined by a Gaussian surface velocity distribution along the emitter immersed in a fluid. The pressure field is described by a Fourier integral representation, and is evaluated asymptotically using a generalized steepest descent procedure. Simple analytical expressions for the acoustic pressure along the axis are obtained, and the variation of the pressure field as a function of distance from the emitter is illustrated. RP MATIKAS, TE (reprint author), NATL RES COUNCIL,MAT DIRECTORATE,WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433, USA. RI Matikas, Theodore/I-2803-2012 NR 14 TC 0 Z9 0 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA TECHNO HOUSE, REDCLIFFE WAY, BRISTOL, ENGLAND BS1 6NX SN 0022-3727 J9 J PHYS D APPL PHYS JI J. Phys. D-Appl. Phys. PD APR 14 PY 1994 VL 27 IS 4 BP 714 EP 718 DI 10.1088/0022-3727/27/4/006 PG 5 WC Physics, Applied SC Physics GA NH073 UT WOS:A1994NH07300006 ER PT J AU MORRIS, RA VIGGIANO, AA PAULSON, JF AF MORRIS, RA VIGGIANO, AA PAULSON, JF TI REACTIONS OF CF+, CF2+, AND CF3+ WITH PERFLUOROBUTA-1,3-DIENE SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Letter ID NO+(V) IONS; TRAJECTORY CALCULATIONS; NEUTRAL COLLISIONS; SIO2; MECHANISMS; SPECTROSCOPY; HALOCARBONS; DISCHARGES; RELAXATION; CHEMISTRY AB The gas-phase reactions of CF+, CF2+, and CF3+ with perfluorobuta-1,3-diene (1,3-C4F6) have been studied using a selected ion flow tube (SIFT) instrument. Reaction rate constants and product branching fractions were measured at 300 K. The reactions all proceed with unit efficiency. The reactions of CF+ and CF2+ with C4F6 both proceed by two pathways: fluoride (F-) transfer and charge transfer. The ion CF3+ reacts with C4F6 by fluoride transfer exclusively. The results for CF3+ are compared with available data on reactions of CF3+ with C2F4 and higher perfluoroolefins. RP MORRIS, RA (reprint author), USAF,PHILLIPS LAB,GEOPHYS DIRECTORATE,DIV IONOSPHER EFFECTS,29 RANDOLPH RD,BEDFORD,MA 01731, USA. NR 32 TC 2 Z9 2 U1 0 U2 0 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 APR 7 PY 1994 VL 98 IS 14 BP 3564 EP 3565 DI 10.1021/j100065a003 PG 2 WC Chemistry, Physical SC Chemistry GA NF765 UT WOS:A1994NF76500003 ER PT J AU MORRIS, RA VIGGIANO, AA AF MORRIS, RA VIGGIANO, AA TI KINETICS OF THE REACTIONS OF F- WITH CF3BR AND CF3I AS A FUNCTION OF TEMPERATURE, KINETIC-ENERGY, INTERNAL TEMPERATURE, AND PRESSURE SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article ID SN2 NUCLEOPHILIC-SUBSTITUTION; ION-MOLECULE ASSOCIATION; GAS-PHASE ION; RATE-CONSTANT; VIBRATIONAL-EXCITATION; BRANCHING RATIO; CHARGE-TRANSFER; DEPENDENCES; SYSTEM; KR+(2P3/2) AB The reactions of F- with CF3Br and CF3I have been studied at several temperatures as functions of pressure and ion-neutral average center-of-mass kinetic energy ((KE(cm))). Rate constants and product branching fractions were measured by using a variable temperature-selected ion flow drift tube apparatus. Both title reactions involve two product pathways: displacement and association, the latter being the major channel under most experimental conditions. The rate constants for displacement are governed by total energy, regardless of the relative contributions by translational and internal energy, indicating that the displacement reactions behave statistically. In contrast, the rate constants for association depend strongly on the internal energy of CF(3)X (rotations and vibrations) compared with the relatively weak effect of translational collision energy. For CF3Br the rate constants for the association channel increase with increasing pressure while those for displacement are independent of pressure, indicating that the additional reactivity leading to more association at higher pressure appears not to compete with the displacement pathway. This lack of competition may be the result of two different reaction intermediates. The more efficient CF3I reaction is at or near the high-pressure limit for association, showing no pressure dependence in both the association and displacement channels. Therefore, there appears to be no competition between these channels for CF3I as well, but the data are less definitive in this case. RP MORRIS, RA (reprint author), USAF,PHILLIPS LAB,GEOPHYS DIRECTORATE,GPID,DIV IONOSPHER EFFECTS,29 RANDOLPH RD,BEDFORD,MA 01731, USA. NR 41 TC 32 Z9 32 U1 0 U2 2 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 APR 7 PY 1994 VL 98 IS 14 BP 3740 EP 3746 DI 10.1021/j100065a032 PG 7 WC Chemistry, Physical SC Chemistry GA NF765 UT WOS:A1994NF76500032 ER PT J AU ROTHMAN, LS AF ROTHMAN, LS TI HOT PAPERS - ATMOSPHERIC PHYSICS - THE HITRAN MOLECULAR DATABASE - EDITIONS OF 1991 AND 1992 BY ROTHMAN,L.S., GAMACHE,R.R., TIPPING,R.H., RINSLAND,C.P., SMITH,M.A.H., BENNER,D.C., DEVI,V.M., FLAUD,J.M., CAMYPEYRET,C., PERRIN,A., GOLDMAN,A., MASSIE,S.T., BROWN,L.R., TOTH,R.A. SO SCIENTIST LA English DT Article AB HOT PAPERS: An atmospheric physicist discusses the utility of the HITRAN molecular database. RP ROTHMAN, LS (reprint author), USAF,GEOPHYSICS DIRECTORATE,PHILLIPS LAB,BEDFORD,MA 01731, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU SCIENTIST INC PI PHILADELPHIA PA 3600 MARKET ST SUITE 450, PHILADELPHIA, PA 19104 SN 0890-3670 J9 SCIENTIST JI Scientist PD APR 4 PY 1994 VL 8 IS 7 BP 17 EP 17 PG 1 WC Information Science & Library Science; Multidisciplinary Sciences SC Information Science & Library Science; Science & Technology - Other Topics GA ND632 UT WOS:A1994ND63200009 ER PT J AU TEDESCO, JW HUGHES, ML ROSS, CA AF TEDESCO, JW HUGHES, ML ROSS, CA TI NUMERICAL-SIMULATION OF HIGH-STRAIN RATE CONCRETE COMPRESSION TESTS SO COMPUTERS & STRUCTURES LA English DT Article AB Dynamic direct compression tests of plain concrete specimens were conducted on a split-Hopkinson pressure bar (SHPB) to investigate the effects of increasing strain rate on the compressive strength of concrete. A comprehensive finite element method study was performed on the SHPB experiments. Both linear and nonlinear analyses were conducted. The results of the numerical analyses disclose the dynamic states of stress in the concrete specimen prior to failure as well as the modes of failure. C1 USAF, CIVIL ENGN SUPPORT AGCY, TYNDALL AFB, FL 32403 USA. GRAD ENGN & RES CTR, EGLIN AFB, FL 32542 USA. RP TEDESCO, JW (reprint author), AUBURN UNIV, DEPT CIVIL ENGN, AUBURN, AL 36849 USA. NR 17 TC 20 Z9 28 U1 1 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0045-7949 EI 1879-2243 J9 COMPUT STRUCT JI Comput. Struct. PD APR 3 PY 1994 VL 51 IS 1 BP 65 EP 77 DI 10.1016/0045-7949(94)90037-X PG 13 WC Computer Science, Interdisciplinary Applications; Engineering, Civil SC Computer Science; Engineering GA NT716 UT WOS:A1994NT71600007 ER PT J AU CHOUDHURI, PG KNIGHT, DD VISBAL, MR AF CHOUDHURI, PG KNIGHT, DD VISBAL, MR TI 2-DIMENSIONAL UNSTEADY LEADING-EDGE SEPARATION ON A PITCHING AIRFOIL SO AIAA JOURNAL LA English DT Article ID BOUNDARY-LAYER SEPARATION; DYNAMIC STALL; OSCILLATING AIRFOILS; EULER EQUATIONS; FLOW; VORTEX; MOTIONS AB The initial stages of two-dimensional unsteady leading-edge boundary-layer separation of laminar subsonic flow over a pitching NACA-0012 airfoil have been studied numerically at Reynolds number (based on airfoil chord length) Re(c) = 10(4), Mach number M(infinity) = 0.2, and nondimensional pitch rate OMEGA0+ = 0.2. Computations have been performed using two separate algorithms for the compressible laminar Navier-Stokes equations. The first method, denoted the structured grid algorithm, utilizes a structured, boundary-fitted C grid and employs the implicit approximate-factorization algorithm of Beam and Warming. The second method, denoted the unstructured grid algorithm, utilizes an unstructured grid of triangles and employs the flux-difference splitting method of Roe and a discrete representation of Gauss' theorem for the inviscid and viscous terms, respectively. Both algorithms are second-order accurate in space and time and have been extensively validated through comparison with analytical and previous numerical results for a variety of problems. The results show the emergence of a primary clockwise-rotating recirculating region near the leading edge which can be traced to a pair of critical points (a center and a saddle) that appear within the flowfield, followed by a secondary counter-clockwise-rotating recirculating region and a tertiary clockwise-rotating recirculating region. The primary and secondary recirculating regions interact with each other to give rise to the unsteady separation (''breakaway'') of the boundary layer. C1 USAF,WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. RP CHOUDHURI, PG (reprint author), RUTGERS STATE UNIV,DEPT MECH & AEROSP ENGN,PISCATAWAY,NJ 08855, USA. NR 49 TC 30 Z9 30 U1 0 U2 5 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 APR PY 1994 VL 32 IS 4 BP 673 EP 681 DI 10.2514/3.12040 PG 9 WC Engineering, Aerospace SC Engineering GA NE724 UT WOS:A1994NE72400001 ER PT J AU BOWERSOX, RDW SCHETZ, JA AF BOWERSOX, RDW SCHETZ, JA TI COMPRESSIBLE TURBULENCE MEASUREMENTS IN A HIGH-SPEED HIGH-REYNOLDS-NUMBER MIXING LAYER SO AIAA JOURNAL LA English DT Article AB To assess the significant physics associated with compressible turbulence, extensive multiple overheat cross/normal-wire, shadowgraph image processing and conventional probe surveys were obtained in a two-dimensional, supersonic, free mixing layer, which consisted of Mach 1.8 air (Re/m = 7 x 10(6)) injected tangentially into a Mach 4.0 freestream (Re/m = 67 x 10(6)). A turbulence transformation was developed that allowed direct measurement of the total Reynolds shear stress. Profiles of three-dimensional turbulent shear, apparent mass, and heat flux data were acquired. Compressibility was found to account for 75% of the total compressible Reynolds shear stress (i.e., the incompressible term, rho u'v'BAR, accounted for only 25%) and 100% of the turbulent heat flux in the present nominally adiabatic flow. These data allowed the development and experimental evaluation of various turbulence closure formulations. The incompressible models yielded results consistent with measured incompressible terms. The Situ-Schetz compressible model accurately represented the total shear. However, the present data indicated that this model provided poor estimates of the turbulent heat flux. Hence, the Situ-Schetz techniques were generalized to consistently account for compressibility in all of the conservation equations. The performance of the new model was found to be excellent. New compressible turbulent kinetic energy formulations were also developed and evaluated. C1 VIRGINIA POLYTECH INST & STATE UNIV,DEPT AEROSP & OCEAN ENGN,BLACKSBURG,VA 24061. RP BOWERSOX, RDW (reprint author), USAF,INST TECHNOL,DEPT AEROSP ENGN,WRIGHT PATTERSON AFB,OH 45433, USA. NR 19 TC 11 Z9 12 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 APR PY 1994 VL 32 IS 4 BP 758 EP 764 DI 10.2514/3.12050 PG 7 WC Engineering, Aerospace SC Engineering GA NE724 UT WOS:A1994NE72400011 ER PT J AU HELIN, HE WATRY, CW AF HELIN, HE WATRY, CW TI EFFECTS OF TRAILING-EDGE JET ENTRAINMENT ON DELTA-WING VORTICES SO AIAA JOURNAL LA English DT Article ID VORTEX AB This paper examines the effects of trailing-edge jet entrainment on the streamwise vortices over a delta wing. Although studies have examined the effects of leading-edge suction and blowing on the burst location of delta wing vortices, very little research has focused on the effects of trailing-edge jet exhaust on the burst location. Using a 60-deg delta wing model in a water tunnel with dye to mark the vortex core, it was possible to visualize how the location of the vortex breakdown changes with trailing-edge jet velocity. This research has determined that at moderate angles of attack it is possible to delay the burst location up to 18% of the chord by increasing the flow velocity from the exhaust ports. In addition, at higher angles of attack, the trailing-edge jets stabilized the asymmetric separated vortices by reattaching the flow and moving the burst location aft on the wing. C1 USAF ACAD,DEPT AERONAUT,COLORADO SPRINGS,CO 80840. GEORGE WASHINGTON UNIV,HAMPTON,VA 23681. RP HELIN, HE (reprint author), USAF ACAD,AERONAUT LAB,COLORADO SPRINGS,CO 80840, USA. NR 8 TC 25 Z9 26 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 APR PY 1994 VL 32 IS 4 BP 802 EP 804 DI 10.2514/3.12056 PG 3 WC Engineering, Aerospace SC Engineering GA NE724 UT WOS:A1994NE72400017 ER PT J AU HANCOCK, RD CHIN, LP AF HANCOCK, RD CHIN, LP TI CHARACTERIZATION OF DROPLET VAPOR VORTEX INTERACTIONS IN A 2-DIMENSIONAL SHEAR-LAYER SO AIAA JOURNAL LA English DT Note C1 SYST RES LABS INC,DAYTON,OH 45440. RP HANCOCK, RD (reprint author), USAF,WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433, USA. NR 12 TC 0 Z9 0 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 APR PY 1994 VL 32 IS 4 BP 881 EP 884 DI 10.2514/3.12069 PG 4 WC Engineering, Aerospace SC Engineering GA NE724 UT WOS:A1994NE72400030 ER PT J AU MORALES, CF ANZUETO, A ANDRADE, F BRASSARD, J LEVINE, SM MAXWELL, LC LAWRENCE, RA JENKINSON, SG AF MORALES, CF ANZUETO, A ANDRADE, F BRASSARD, J LEVINE, SM MAXWELL, LC LAWRENCE, RA JENKINSON, SG TI BUTHIONINE SULFOXIMINE TREATMENT IMPAIRS RAT DIAPHRAGM FUNCTION SO AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE LA English DT Article ID EXHAUSTIVE EXERCISE; RESPIRATORY MUSCLES; SKELETAL-MUSCLE; BLOOD-FLOW; GLUTATHIONE; METABOLISM; PERFORMANCE; CYCLE AB Activation of the glutathione (GSH) redox cycle with production of glutathione disulfide (GSSG) has been shown to occur in the diaphragm during inspiratory resistive loading (RB). Buthionine sulfoximine (BSO) lowers tissue GSH by irreversibly inhibiting the rate-limiting synthesis enzyme gamma-glutamylcysteine synthetase. We investigated the effects of BSO on rat diaphragm function both at rest and after a period of RB. Rats in the RB groups underwent inspiratory RB until they were unable to sustain 70% of their maximal airway pressure. A portion of the diaphragm was analyzed for GSH and GSSG levels, and measurements of in vitro contractile properties included contraction times, maximal tetanic tension (Po), maximal twitch tension (Pt), and force frequency curves. BSO treatment produced a profound depletion of diaphragmatic GSH. Neither BSO nor RB alone significantly altered diaphragm contractile properties at this load of RB. But, in BSO-RB rats, there was a significant decrease in Pt, Po, and tetanic tension at all frequencies of stimulation compared with those in other groups. These data reveal that animals treated with BSO followed by inspiratory resistive loading exhibit marked diaphragm impairment, suggesting that GSH may play an important role in protecting the diaphragm from the stress induced by this resistive breathing protocol. C1 WILFORD HALL USAF MED CTR,SAN ANTONIO,TX. BROOKE ARMY MED CTR,SAN ANTONIO,TX. AUDIE L MURPHY VET AFFAIR HOSP,SAN ANTONIO,TX. RI Andrade, Francisco/F-1258-2011 OI Andrade, Francisco/0000-0002-2460-5798 FU NHLBI NIH HHS [HL-32824] NR 33 TC 9 Z9 9 U1 0 U2 1 PU AMER LUNG ASSOC PI NEW YORK PA 1740 BROADWAY, NEW YORK, NY 10019 SN 1073-449X J9 AM J RESP CRIT CARE JI Am. J. Respir. Crit. Care Med. PD APR PY 1994 VL 149 IS 4 BP 915 EP 919 PG 5 WC Critical Care Medicine; Respiratory System SC General & Internal Medicine; Respiratory System GA NP836 UT WOS:A1994NP83600012 PM 7908245 ER PT J AU PAYNE, LE AF PAYNE, LE TI MY SHIFT SO ANNALS OF EMERGENCY MEDICINE LA English DT Editorial Material RP PAYNE, LE (reprint author), WILFORD HALL USAF MED CTR,DIV ACUTE CARE PSA,2200 BERGQUIST DR,SUITE 1,LACKLAND AFB,TX 78250, 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 0196-0644 J9 ANN EMERG MED JI Ann. Emerg. Med. PD APR PY 1994 VL 23 IS 4 BP 894 EP 895 DI 10.1016/S0196-0644(94)70332-9 PG 2 WC Emergency Medicine SC Emergency Medicine GA NG662 UT WOS:A1994NG66200032 ER PT J AU KROCK, LP RUSSELL, RL SIEGBORN, J BALLDIN, UI AF KROCK, LP RUSSELL, RL SIEGBORN, J BALLDIN, UI TI REDUCED PRESSURE IN EXTENDED COVERAGE ANTI-G-TROUSERS WITH ASSISTED PRESSURE BREATHING SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID TOLERANCE AB Six Swedish Air Force pilots and two Armstrong Laboratory subjects volunteered for this study to determine whether reduced pressure in extended coverage anti-Ci trousers (ECT), in combination with positive pressure breathing for G protection, affected +Gz tolerance. Group mean gradual onset run (GOR) time for the low pressure schedule (0.8 psig.G(-1)) wets significantly different from the other two conditions (1.1, 1.5 psig.G(-1))-84.1, 95.6, and 94.1 s, respectively. Group mean simulated aerial combat maneuver (SACM) times statistically differed between the low and middle pressure rates compared to the highest pressure schedule-147.6, 164.8 and 232.3 s, respectively. SACM heart rats (HR) responses for the +9 Gz plateaus were not statistically different among conditions. How ever, +5 Gz HR's were lower for the highest pressure condition. Similarities were identified between the middle and high pressurization conditions for GOR. However, reducing pressure in the ECT during SACM exposures was not supported by these delta. C1 NATL DEF RES ESTAB,DIV AVIAT MED,S-58111 LINKOPING,SWEDEN. RP KROCK, LP (reprint author), ARMSTRONG LAB,CREW SYST DIRECTORATE,DIV CREW TECHNOL,BROOKS AFB,TX 78235, USA. NR 19 TC 7 Z9 10 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 APR PY 1994 VL 65 IS 4 BP 287 EP 292 PG 6 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NE707 UT WOS:A1994NE70700001 PM 8002907 ER PT J AU FLYNN, WJ GREEN, RP LORUSSO, FJ AF FLYNN, WJ GREEN, RP LORUSSO, FJ TI RETINAL VEIN OCCLUSIONS - CASE REVIEWS OF USAF AVIATORS SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID NATURAL COURSE AB Retinal vein occlusions are primarily a disease of the elderly, frequently with permanent visual abnormalities. However, both branch and central retinal vein occlusions occur rarely in young individuals. Reported here are a series of retinal vein occlusions in USAF aviators. Seven cases were identified from records of the USAF Armstrong Laboratory Aeromedical Consultation Service from 1976-91. Four cases of central retinal vein occlusions and three cases of branch occlusions are summarized. initial visual acuity ranged from 20/15 to 20/400. All seven aviators recovered 20/15 vision and returned to flying status. Hyperlipidemia was found in four of the seven aviators, and hypertension was diagnosed in two aviators. Included is a discussion of current concepts in the natural history, associated systemic conditions, treatment options, and aeromedical implications of retinal vein occlusions. C1 AEROMED CONSULTAT SERV,ARMSTRONG LAB,OPHTHALMOL BRANCH,BROOKS AFB,TX 78235. NR 15 TC 2 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 APR PY 1994 VL 65 IS 4 BP 332 EP 337 PG 6 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NE707 UT WOS:A1994NE70700009 PM 8002915 ER PT J AU CURIRYDER, D AF CURIRYDER, D TI MY MEMORIES OF THE VIETNAM-WAR SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Editorial Material RP CURIRYDER, D (reprint author), USAFR,NC,32ND AEG,202 WESTOVER RD BLDG 907,KELLY AFB,TX 78241, USA. NR 0 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 APR PY 1994 VL 65 IS 4 BP 369 EP 370 PG 2 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA NE707 UT WOS:A1994NE70700017 ER PT J AU FITZGERALD, MC AF FITZGERALD, MC TI THE RUSSIAN IMAGE OF FUTURE WAR SO COMPARATIVE STRATEGY LA English DT Article AB Like its Soviet predecessor, the Russian military perceives the concept of a military-technical revolution (MTR) as the nucleus of future warfare. Emerging technologies are radically changing military capabilities and altering the character of warfare. The main efforts in future armed combat will be concentrated on the vertical or aerospace coordinate, and efforts on the ground will have a supporting role. Emphasis will be on destroying the enemy's most important military and economic facilities and counterattack assets, thus sapping its political will. Russian military scientists view nontraditional weapons and third-generation nuclear weapons as key elements of the MTR. C1 USAF,COMMAND & STAFF COLL,MAXWELL AFB,AL. RP FITZGERALD, MC (reprint author), HUDSON INST,HUDSON,NY 12534, USA. NR 13 TC 2 Z9 2 U1 0 U2 3 PU TAYLOR & FRANCIS PI BRISTOL PA 1900 FROST ROAD, SUITE 101, BRISTOL, PA 19007-1598 SN 0149-5933 J9 COMP STRATEGY PD APR-JUN PY 1994 VL 13 IS 2 BP 167 EP 180 DI 10.1080/01495939408402971 PG 14 WC International Relations; Political Science SC International Relations; Government & Law GA NN023 UT WOS:A1994NN02300002 ER PT J AU WOLFERT, ML AF WOLFERT, ML TI WAR AND ANTIWAR - SURVIVAL AT THE DAWN OF THE 21ST-CENTURY - TOFFLER,A, TOFFLER,H SO COMPARATIVE STRATEGY LA English DT Book Review RP WOLFERT, ML (reprint author), USAF,SPACE COMMAND,POLICY & DOCTRINE HEADQUARTERS,PETERSON AFB,CO 80914, USA. NR 1 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 APR-JUN PY 1994 VL 13 IS 2 BP 245 EP 247 PG 3 WC International Relations; Political Science SC International Relations; Government & Law GA NN023 UT WOS:A1994NN02300008 ER PT J AU LINSTER, BG AF LINSTER, BG TI STOCHASTIC EVOLUTIONARY DYNAMICS IN THE REPEATED PRISONERS-DILEMMA SO ECONOMIC INQUIRY LA English DT Article ID GAME AB This paper explores boundedly rational behavior in the infinitely repeated prisoners' dilemma. Strategy choices are modeled as finite automata, and the evolution of populations through asexual reproduction with mutation is explored. Evolutionary success is based on how well the strategy does in an infinite game against randomly matched opponents, and mutation schemes based on a stylized model of these strategies are employed. The results demonstrate when either defecting or cooperating strategies tend to evolve, depending on how important the future is. Interestingly, when the strategies are allowed to become tolerant of defections, the population cycles between defecting and cooperating strategies. RP LINSTER, BG (reprint author), USAF ACAD,COLORADO SPRINGS,CO 80840, USA. NR 20 TC 3 Z9 3 U1 0 U2 1 PU WESTERN ECONOMIC ASSOC INT PI HUNTINGTON BEACH PA 7400 CENTER AVE SUITE 109, HUNTINGTON BEACH, CA 92647-3039 SN 0095-2583 J9 ECON INQ JI Econ. Inq. PD APR PY 1994 VL 32 IS 2 BP 342 EP 357 PG 16 WC Economics SC Business & Economics GA NM127 UT WOS:A1994NM12700012 ER PT J AU NICHOLLS, DJ AF NICHOLLS, DJ TI THE RELATION BETWEEN CRACK BLUNTING AND FATIGUE-CRACK GROWTH-RATES SO FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES LA English DT Article AB Previous work has shown that the inclusion of the strain energy released by crack blunting leads to an energy minimum for fatigue crack growth that can be used to predict stage II fatigue crack growth. The present work assumes a polynomial relation between crack blunting and crack extension to derive an expression for the rate of fatigue crack growth that is dependent upon only the applied DELTAK, E, sigma(ys) K(c) and the exponent p in the relation between crack blunting and crack extension. This expression is thought to be generally valid since it accurately predicts fatigue crack growth rates for a wide variety of titanium, nickel, aluminium and steel alloys. A unique characteristic of the model is its ability (for long crack, slow crack growth) to account for the different slope for different materials in the Paris Law region of the da/dN vs. DELTAK curve. The model specifically shows that this slope, m, is dependent solely upon the exponent, p, in the relation between crack blunting and crack extension. RP NICHOLLS, DJ (reprint author), USAF ACAD,DEPT ENGN MECH,COLORADO SPRINGS,CO 80840, USA. NR 9 TC 11 Z9 11 U1 0 U2 3 PU FATIGUE & FRACTURE ENGINEERINGMATERIALS STRUCTURES LIMITED PI SHEFFIELD PA C/O SIRIUS UNIV OF SHEFFIELD/FAC OF ENG MAPPIN STREET, SHEFFIELD, S YORKSHIRE, ENGLAND S1 3JD SN 8756-758X J9 FATIGUE FRACT ENG M JI Fatigue Fract. Eng. Mater. Struct. PD APR PY 1994 VL 17 IS 4 BP 459 EP 467 DI 10.1111/j.1460-2695.1994.tb00245.x PG 9 WC Engineering, Mechanical; Materials Science, Multidisciplinary SC Engineering; Materials Science GA NP156 UT WOS:A1994NP15600007 ER PT J AU LATENDRESSE, JR BROOKS, CL FLEMMING, CD CAPEN, CC AF LATENDRESSE, JR BROOKS, CL FLEMMING, CD CAPEN, CC TI REPRODUCTIVE TOXICITY OF BUTYLATED TRIPHENYL PHOSPHATE AND TRICRESYL PHOSPHATE FLUIDS IN F344 RATS SO FUNDAMENTAL AND APPLIED TOXICOLOGY LA English DT Article ID ORTHO-CRESYL PHOSPHATE; TESTICULAR TOXICITY; SERTOLI AB The effects of tricresyl phosphate (TCP) and butylated triphenyl phosphate (BTP)-based hydraulic fluid on reproduction were studied in F344 rats using a modification of the National Toxicology Program's Continuous Breeding Protocol. Groups of breeding pairs received single daily oral doses of an equal volume of either 0, 0.6, 1.0 g BTP/kg or 0.4 g TCP/kg in sesame oil or 1.7 g neat BTP/kg for up to 135 days. A naive control group allowed to breed, but not dosed or handled daily, demonstrated that daily dosing and handling of the rats had no effect on reproduction. The fertility index and number of litters born were significantly decreased in rats exposed to 1.0 and 1.7 g BTP/kg and 0.4 g TCP/kg. The number of pups per litter was significantly decreased in the TCP group. A crossover mating experiment using 0.4 g TCP/kg/day and 1.0 g BTP/kg/day groups, each mated with vehicle controls, demonstrated that TCP caused 100% infertility in male rats but did not affect reproduction in females. BTP caused a significant decline in reproduction in female rats characterized by low mating and fertility indices, decreased number of litters, and abnormal estrous cycles. Fertility was decreased in the BTP-dosed male rats. Both sexes of rats in the crossover experiment with TCP and BTP had significant decreases in terminal body weights and increases in adrenal gland and liver weights. Only TCP-dosed male rats had significantly decreased testicular and epididymal weights. TCP-dosed female rats had increased ovarian weights, while BTP-dosed females had significantly lower uterine weights. The results of this study indicate that BTP and TCP are reproductive toxicants in F344 rats. (C) 1994 Society of Toxicology. C1 OHIO STATE UNIV, DEPT VET PATHOBIOL, COLUMBUS, OH 43210 USA. MANTECH ENVIRONM TECHNOL INC, DAYTON, OH 45421 USA. RP LATENDRESSE, JR (reprint author), NATL NAVAL MED CTR, DIV TOX HAZARDS,TOXICOL DETACHMENT,BLDG 79, 2856 G ST, AREA B, WRIGHT PATTERSON AFB, OH 45433 USA. RI Latendresse, John/A-9215-2009 NR 25 TC 16 Z9 19 U1 3 U2 12 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0272-0590 J9 FUND APPL TOXICOL JI Fundam. Appl. Toxicol. PD APR PY 1994 VL 22 IS 3 BP 392 EP 399 DI 10.1006/faat.1994.1044 PG 8 WC Toxicology SC Toxicology GA NG988 UT WOS:A1994NG98800007 PM 8050634 ER PT J AU PETROPOULOS, PG AF PETROPOULOS, PG TI A SIMPLE GUIDELINE FOR CHOOSING THE POINTS PER WAVELENGTH IN FD-TD SIMULATIONS SO IEEE ANTENNAS AND PROPAGATION MAGAZINE LA English DT Note RP PETROPOULOS, PG (reprint author), USAF,ARMSTRONG LAB,AL OES,BROOKS AFB,TX 78235, USA. RI Petropoulos, Peter/M-6495-2013 NR 3 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 1045-9243 J9 IEEE ANTENNAS PROPAG JI IEEE Antennas Propag. Mag. PD APR PY 1994 VL 36 IS 2 BP 67 EP 68 PG 2 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA PT610 UT WOS:A1994PT61000011 ER PT J AU CHIOU, HL YUVARAJAN, S WEIMER, J FRONISTA, G AF CHIOU, HL YUVARAJAN, S WEIMER, J FRONISTA, G TI A NOVEL METHOD OF USING WAVE-FORM-GENERATORS FOR SINE PULSEWIDTH MODULATION SO IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS LA English DT Letter AB A novel method is presented of using waveform-generators for generating the sine pulsewidth modulation (PWM) control signals for a bridge inverter. The frequencies of the reference sine and synchronized triangular waveforms needed for PWM can be varied simultaneously over a wide range. Experimental waveforms of control circuit and inverter are given. C1 AERO PROP & POWER DIRECTORATE,ELECT TECHNOL LAB,WRIGHT PATTERSON AFB,OH 45433. RP CHIOU, HL (reprint author), N DAKOTA STATE UNIV,DEPT ELECT ENGN,FARGO,ND 58105, USA. NR 3 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 0018-9251 J9 IEEE T AERO ELEC SYS JI IEEE Trans. Aerosp. Electron. Syst. PD APR PY 1994 VL 30 IS 2 BP 606 EP 611 DI 10.1109/7.272283 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA ND687 UT WOS:A1994ND68700030 ER PT J AU SPARKS, A BUFFINGTON, J BANDA, S AF SPARKS, A BUFFINGTON, J BANDA, S TI FIGHTER AIRCRAFT LATERAL DIRECTIONAL AXES FULL ENVELOPE CONTROL LAW DESIGN SO INTERNATIONAL JOURNAL OF CONTROL LA English DT Article AB A decoupled wide envelope lateral/directional axes control design is presented for a supermanoeuvrable version of an F-18 aircraft. A control structure is developed that separates gain scheduling issues from aircraft performance issues. Flight condition dependent state and control effectiveness variations are accounted for by an inner loop controller designed using eigenstructure assignment. Structured singular value synthesis is used to design an implicit model following outer loop controller that addresses flying qualities performance specifications. A control selector is designed that generates lateral/directional aerodynamic and thrust vectoring commands from generalized control inputs of roll and yaw acceleration. Flying qualities and robustness analyses show that the control system performs well despite neglected dynamics and system uncertainties. Nonlinear simulations are presented showing excellent decoupling of roll and yaw responses. RP SPARKS, A (reprint author), FIGC,WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433, USA. NR 20 TC 1 Z9 1 U1 0 U2 0 PU TAYLOR & FRANCIS LTD PI LONDON PA ONE GUNDPOWDER SQUARE, LONDON, ENGLAND EC4A 3DE SN 0020-7179 J9 INT J CONTROL JI Int. J. Control PD APR PY 1994 VL 59 IS 4 BP 893 EP 924 DI 10.1080/00207179408923110 PG 32 WC Automation & Control Systems SC Automation & Control Systems GA NL265 UT WOS:A1994NL26500002 ER PT J AU EVWARAYE, AO SMITH, SR MITCHEL, WC AF EVWARAYE, AO SMITH, SR MITCHEL, WC TI SHALLOW LEVELS IN N-TYPE 6H-SILICON CARBIDE AS DETERMINED BY ADMITTANCE SPECTROSCOPY SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID SCHOTTKY BARRIERS AB Admittance spectroscopy has been used to study shallow levels in n-type 6H-SiC single crystals. A total of eight unintentionally doped n-type samples obtained from three different sources were used in this study. Two of the samples were grown by the Lely method, while the others were grown by physical vapor transport. Two electron traps at E(C)-0.04 eV and E(C)-0.03 eV were detected in the more heavily n-type (N(D)-N(A) = 10(18) cm-3) samples. These defects may be due to contaminants other than nitrogen. A defect level at E(C)-0.08 eV as detected in a sample with N(D)-N(A) = 8.9 X 10(17) cm-3. This level is associated with nitrogen at the hexagonal site (h). An electron trap at E(C)-0.11 eV was detected and is associated with nitrogen at the quasicubic sites (k1k2). This level was observed only in the lightly n-type samples (N(D)-N(A)=4.7 X 10(15)-6.4 X 10(17) cm-3). C1 UNIV DAYTON,DEPT PHYS,DAYTON,OH 45469. UNIV DAYTON,RES INST,DAYTON,OH 45469. RP EVWARAYE, AO (reprint author), WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433, USA. NR 15 TC 25 Z9 25 U1 1 U2 2 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 APR 1 PY 1994 VL 75 IS 7 BP 3472 EP 3476 DI 10.1063/1.356108 PG 5 WC Physics, Applied SC Physics GA NC839 UT WOS:A1994NC83900031 ER PT J AU BESCH, EL WERCHAN, PM WIEGMAN, JF NESTHUS, TE SHAHED, AR AF BESCH, EL WERCHAN, PM WIEGMAN, JF NESTHUS, TE SHAHED, AR TI EFFECT OF HYPOXIA AND HYPEROXIA ON HUMAN +G(Z) DURATION TOLERANCE SO JOURNAL OF APPLIED PHYSIOLOGY LA English DT Article DE ACCELERATION; ENVIRONMENTAL STRESSOR; GRAVITATIONAL FORCES; SIMULATED AERIAL COMBAT MANEUVER ID SUSTAINED GZ ACCELERATION; MANEUVER AB To determine the effects of varying inspired O-2 on positive radial acceleration (+G(z); i.e., head-to-foot inertial load) duration tolerance, seven men were exposed to the +4.5- to +7.0-G(z) simulated aerial combat maneuver (SACM) by use of the Armstrong Laboratory (Brooks Air Force Base) centrifuge. Exposures were repeated on different days while subjects breathed gas mixtures of fractional concentration of O-2 in inspired air (FIO2) between 0.12 and 0.6. SACM duration tolerance was positively related to inspired O-2 of FIO2 between 0.12 and 0.2 but was unchanged at FIO2 between 0.2 and 0.6. SACM exposure decreased arterial O-2 saturation and increased heart rates; SACM-induced changes were additive to FIO2 effects. The positive relationship between blood lactate and SACM duration tolerance at all FIO2 indicated an anaerobic component. It is concluded that SACM duration tolerance is limited by reduced FIO2 but not enhanced by hyperoxia. Thus the aerobic component of +4.5- to +7.0-Gz SACM duration tolerance is much greater than previously believed. C1 KRUG LIFE SCI,SAN ANTONIO,TX 78216. ARMSTRONG LAB,BROOKS AFB,TX 78235. OPERAT TECHNOL CORP,SAN ANTONIO,TX 78229. RP BESCH, EL (reprint author), UNIV FLORIDA,GAINESVILLE,FL 32610, USA. NR 33 TC 1 Z9 1 U1 0 U2 0 PU AMER PHYSIOLOGICAL SOC PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 SN 8750-7587 J9 J APPL PHYSIOL JI J. Appl. Physiol. PD APR PY 1994 VL 76 IS 4 BP 1693 EP 1700 PG 8 WC Physiology; Sport Sciences SC Physiology; Sport Sciences GA NG707 UT WOS:A1994NG70700043 PM 8045849 ER PT J AU REE, MJ CARRETTA, TR EARLES, JA ALBERT, W AF REE, MJ CARRETTA, TR EARLES, JA ALBERT, W TI SIGN CHANGES WHEN CORRECTING FOR RANGE RESTRICTION - A NOTE ON PEARSONS AND LAWLEYS SELECTION FORMULAS SO JOURNAL OF APPLIED PSYCHOLOGY LA English DT Note ID VALIDITY AB K. Pearson (1903) recognized that the correlation coefficient was subject to distortion when a sample was censored or preselected in some way. He proposed 3 univariate correction formulas for better estimates in these circumstances. These have become well known from the work of R. L. Thorndike (1949). D. N. Lawley (1943) proposed a general solution usually called the multivariate correction for range restriction. Both Pearson's and Lawley's corrections are discussed and examples are presented. Of particular interest are the opportunities for the corrected correlations to change sign as a result of the correction. Numerical examples are presented that show that correlations can change signs in the Pearson-Thorndike Case 3 and in Lawley's general solution. RP REE, MJ (reprint author), ARMSTRONG LAB,HUMAN RESOURCES DIRECTORATE,7909 LINDBERGH DR,BROOKS AFB,TX 78235, USA. NR 10 TC 64 Z9 64 U1 0 U2 1 PU AMER PSYCHOLOGICAL ASSOC PI WASHINGTON PA 750 FIRST ST NE, WASHINGTON, DC 20002-4242 SN 0021-9010 J9 J APPL PSYCHOL JI J. Appl. Psychol. PD APR PY 1994 VL 79 IS 2 BP 298 EP 301 DI 10.1037//0021-9010.79.2.298 PG 4 WC Psychology, Applied; Management SC Psychology; Business & Economics GA NG935 UT WOS:A1994NG93500016 ER PT J AU SMITH, JP DOLL, D CROITORU, R THORNTON, C PERRY, MC AF SMITH, JP DOLL, D CROITORU, R THORNTON, C PERRY, MC TI OCTREOTIDE HAS NO EFFECT ON ADVANCED COLON-CANCER SO JOURNAL OF CLINICAL GASTROENTEROLOGY LA English DT Note ID SOMATOSTATIN ANALOG; GASTRIN-LEVELS; EXPRESSION; PEPTIDE; GROWTH; CELLS C1 UNIV MISSOURI,HLTH SCI CTR,DEPT MED,COLUMBIA,MO 65201. USAF,ROBERT L THOMPSON STRATEG HOSP,DEPT INTERNAL MED,CARSWELL AFB,TX. HARRY S TRUMAN MEM VET HOSP,DEPT MED,COLUMBIA,MO 65201. RP SMITH, JP (reprint author), PENN STATE UNIV,MILTON S HERSHEY MED CTR,DEPT MED,DIV GASTROENTEROL,HERSHEY,PA 17033, USA. NR 16 TC 12 Z9 12 U1 0 U2 0 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 0192-0790 J9 J CLIN GASTROENTEROL JI J. Clin. Gastroenterol. PD APR PY 1994 VL 18 IS 3 BP 245 EP 247 DI 10.1097/00004836-199404000-00020 PG 3 WC Gastroenterology & Hepatology SC Gastroenterology & Hepatology GA NE689 UT WOS:A1994NE68900019 PM 8034929 ER PT J AU FUJII, R HOFFMAN, RA ANDERSON, PC CRAVEN, JD SUGIURA, M FRANK, LA MAYNARD, NC AF FUJII, R HOFFMAN, RA ANDERSON, PC CRAVEN, JD SUGIURA, M FRANK, LA MAYNARD, NC TI ELECTRODYNAMIC PARAMETERS IN THE NIGHTTIME SECTOR DURING AURORAL SUBSTORMS SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article ID FIELD-ALIGNED CURRENTS; TWO-DIMENSIONAL OBSERVATIONS; WESTWARD TRAVELING SURGE; DEPENDENT PLASMA-FLOW; BIRKELAND CURRENTS; ELECTRIC-FIELDS; DAYSIDE MAGNETOSPHERE; ATMOSPHERE EXPLORER; ZONE CURRENTS; PRECIPITATION AB The characteristics of the large-scale electrodynamic parameters, field-aligned currents (FACs), electric fields, and electron precipitation, which are associated with auroral substorm events in the nighttime sector, have been obtained through a unique analysis which places the ionospheric measurements of these parameters into the context of a generic substorm determined from global auroral images. A generic bulge-type auroral emission region has been deduced from auroral images taken by the Dynamics Explorer 1 (DE 1) satellite during a number of isolated substorms, and the form has been divided into six sectors, based on the peculiar emission characteristics in each sector: west of bulge, surge horn, surge, middle surge, eastern bulge, and east of bulge. By comparing the location of passes of the Dynamics Explorer 2 (DE 2) satellite to the simultaneously obtained auroral images, each pass is placed onto the generic aurora. The organization of DE 2 data in this way has systematically clarified peculiar characteristics in the electrodynamic parameters. An upward net current mainly appears in the surge, with little net current in the surge horn and the west of bulge. The downward net current is distributed over wide longitudinal regions from the eastern bulge to the east of bulge. Near the poleward boundary of the expanding auroral bulge, a pair of oppositely directed FAC sheets is observed, with the downward FAC on the poleward side. This downward FAC and most of the upward FAC in the surge and the middle surge are associated with narrow, intense antisunward convection, corresponding to an equatorward directed spikelike electric field. This pair of currents decreases in amplitude and latitudinal width toward dusk in the surge and the west of bulge, and the region 1 and 2 FACs become embedded in the sunward convection region. The upward FAC region associated with the spikelike field on the poleward edge of the bulge coincides well with intense electron precipitation and aurora appearing in this western and poleward portion of the bulge. The convection reversal is sharp in the west of bulge and surge horn sectors, and near the high-latitude boundary of the upward region 1 FAC. In the surge, the convection reversal is near the low-latitude boundary of the upward region 1, with a near stagnation region often extending over a large interval of latitude. In the eastern bulge and east of bulge sectors, the region 1 and 2 FACs are located in the sunward convection region, while a spikelike electric field occasionally appears poleward of the aurora but usually not associated with a pair of FAC sheets. In the eastern bulge, magnetic field data show complicated FAC distributions which correspond to current segments and filamentary currents. C1 UNIV ALASKA,INST GEOPHYS,FAIRBANKS,AK 99775. UNIV ALASKA,DEPT PHYS,FAIRBANKS,AK 99775. UNIV IOWA,DEPT PHYS & ASTRON,IOWA CITY,IA 52242. TOKAI UNIV,INST RES & DEV,TOKYO 151,JAPAN. USAF,GEOPHYS DIRECTORATE,PHILIPS LAB,PL-GPSG,BEDFORD,MA 01731. RP FUJII, R (reprint author), NAGOYA UNIV,SOLAR TERR ENVIRONM LAB,CHIKUSA KU,NAGOYA 46401,JAPAN. NR 43 TC 90 Z9 90 U1 0 U2 4 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 APR 1 PY 1994 VL 99 IS A4 BP 6093 EP 6112 DI 10.1029/93JA02210 PG 20 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA NF580 UT WOS:A1994NF58000033 ER PT J AU MOEN, J SANDHOLT, PE LOCKWOOD, M EGELAND, A FUKUI, K AF MOEN, J SANDHOLT, PE LOCKWOOD, M EGELAND, A FUKUI, K TI MULTIPLE, DISCRETE ARCS ON SUNWARD CONVECTING FIELD LINES IN THE 14-15 MLT REGION SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article ID INTERPLANETARY MAGNETIC-FIELD; LATITUDE BOUNDARY-LAYER; FLUX-TRANSFER EVENTS; KELVIN-HELMHOLTZ INSTABILITY; ELECTROSTATIC SHOCKS; AURORAL ARCS; MAGNETOSPHERIC BOUNDARY; PARTICLE-ACCELERATION; IMPULSIVE PENETRATION; ALIGNED CURRENTS AB Ionospheric plasma flow measurements and simultaneous observations of thin (approximately 0.2-degrees invariant latitude (ILAT)), multiple, longitudinally extended auroral arcs of transient nature within 74-degrees-76-degrees ILAT and 1030-1130 UT (approximately 14-15 MLT) on January 12, 1989, are reported. The auroral structures appeared within the luminous belt of strong 630.0-nm emissions located predominantly on sunward convecting field lines equatorward of the convection reversal boundary as identified by the European Incoherent Scatter UHF radar. The events occurred during a period of several hours quasi-steady solar wind speed (approximately 700 km s-1) and a radially orientated interplanetary magnetic field (IMF) with a weak northward tilt (IMF B(Z)>0). These typical dayside auroral features are related to previous studies of auroral activity related to the upward region 1 current in the postnoon sector. The discrete auroral events presented here may result from magnetosheath plasma injections into the low-latitude boundary layer (LLBL) and an associated dynamo mechanism. An alternative explanation invokes kinetic Alfven waves, triggered either by Kelvin-Helmholtz instability at the inner (or outer) edge of the LLBL or by pressure pulse induced magnetopause surface waves. C1 USAF,GEOPHYS DIRECTORATE,PHILIPS LAB,DIV IONOSPHER EFFECTS,BEDFORD,MA 01731. RUTHERFORD APPLETON LAB,DIDCOT OX11 0QX,OXON,ENGLAND. RP MOEN, J (reprint author), UNIV OSLO,DEPT PHYS,POB 1048 BLINDERN,N-0316 OSLO,NORWAY. RI Lockwood, Mike/G-1030-2011 OI Lockwood, Mike/0000-0002-7397-2172 NR 49 TC 33 Z9 35 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 APR 1 PY 1994 VL 99 IS A4 BP 6113 EP 6123 DI 10.1029/93JA03344 PG 11 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA NF580 UT WOS:A1994NF58000034 ER PT J AU VALLADARES, CE CARLSON, HC FUKUI, K AF VALLADARES, CE CARLSON, HC FUKUI, K TI INTERPLANETARY MAGNETIC-FIELD DEPENDENCY OF STABLE SUN-ALIGNED POLAR-CAP ARCS SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article ID BZ NORTHWARD; THETA-AURORA; BIRKELAND CURRENT; TRANSPOLAR ARC; PLASMA; CONVECTION; ELECTRON; VIKING; MODEL; CONFIGURATION AB This is the first analysis, using a statistically significant data set, of the morphological dependence of the presence, orientation, and motion of stable sunaligned polar cap arcs upon the vector interplanetary magnetic field (IMF). For the one winter season analyzed we had 1392 all-sky 630.0-nm images of 2-min resolution containing a total of 150 polar cap arcs, all with corresponding values of the IMF as measured by IMP 8 or ISEE 2. After demonstrating an unbiased data set with smooth normal distributions of events versus the dimensions of time, space, and IMF component, we examine IMF dependencies of the properties of the optical arcs. A well-defined dependence for B(z) is found for the presence/absence of stable Sun-aligned polar cap arcs. Consistent with previous statistical studies, the probability of observing polar cap aurora steadily increases for larger positive values of B(z), and linearly decreases when B(z) becomes more negative. The probability of observing Sun-aligned arcs within the polar cap is determined to vary sharply as a function of the arc location; arcs were observed 40% of the time on the dawnside and only 10% on the duskside. This implies an overall probability of at least 40% for the whole polar cap. 20% of the arcs were observed during ''southward IMF conditions,'' but in fact under closer inspection were found to have been formed under northward IMF conditions; these ''residual'' positive B(z) arcs had a delayed residence time in the polar cap of about what would be expected after a north to south transition of B(z). A firm dependence on B(y) is also found for both the orientation and the dawn-dusk direction of motion of the arcs. All the arcs are Sun-aligned to a first approximation, but present deviations from this orientation, depending primarily upon the location of the arc in corrected geomagnetic (CG) coordinates. The arcs populating the 06-12 and the 12-18 quadrants of the CG coordinate system point toward the cusp. The B(y) dependency of the arc alignment is consistent with a cusp displacement in local time according to the sign of B(y). We found that the arc direction of motion depended both on B(y) and the arc location within the polar cap. For a given value of B(y), two well-defined regions (or cells) exist. Within each cell the arcs move in the same direction toward the boundary between the cells. The arcs located in the duskside move dawnward; those in the dawnside move duskward. The relative size of these dusk and dawn regions (or cells) are controlled by the magnitude of B(y). This persistent dusk-dawn motion of the polar cap arcs is interpreted in terms of newly open flux tubes entering the polar cap and exerting a displacement of the convective cells and the polar cap arcs that are embedded within them. C1 USAF,GEOPHYS DIRECTORATE,PHILLIPS LAB,BEDFORD,MA 01731. RP VALLADARES, CE (reprint author), BOSTON COLL,INST SPACE RES,NEWTON,MA 02159, USA. NR 59 TC 87 Z9 87 U1 1 U2 3 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 APR 1 PY 1994 VL 99 IS A4 BP 6247 EP 6272 DI 10.1029/93JA03255 PG 26 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA NF580 UT WOS:A1994NF58000049 ER PT J AU SEMPOWSKI, GD BECKMANN, MP DERDAK, S PHIPPS, RP AF SEMPOWSKI, GD BECKMANN, MP DERDAK, S PHIPPS, RP TI SUBSETS OF MURINE LUNG FIBROBLASTS EXPRESS MEMBRANE-BOUND AND SOLUBLE IL-4 RECEPTORS - ROLE OF IL-4 IN ENHANCING FIBROBLAST PROLIFERATION AND COLLAGEN-SYNTHESIS SO JOURNAL OF IMMUNOLOGY LA English DT Article ID BRONCHOALVEOLAR LAVAGE FLUID; COLONY-STIMULATING FACTOR; CELL-SURFACE RECEPTOR; PULMONARY FIBROSIS; GAMMA-INTERFERON; GENE-EXPRESSION; MAST-CELL; FACTOR-I; SUBPOPULATIONS; INTERLEUKIN-4 AB The purpose of this study was to determine whether or not membrane-bound and soluble forms of IL-4 receptors are expressed by isolated subsets of murine lung fibroblasts and to evaluate the potential functional consequences of IL-4 receptor triggering. Recent studies demonstrate that IL-4-synthesizing Th2 cells and mast cells are present in increased numbers in the lung during inflammation and fibrosis, suggesting that IL-4 may play a regulatory role in these events. We hypothesize that pulmonary fibroblasts and subsets thereof are intimately involved in this inflammatory response and that IL-4 is an active player in stimulating fibroblast collagen synthesis and hyperproliferation, creating a fibrotic environment in the lung. The fibroblast subsets used in these experiments differ not only in surface expression of the thymocyte-1 (Thy-1) Ag, but also in function and morphology. We now report the novel finding that IL-4 receptors are present at discordant levels on Thy-1(+) and Thy-1(-) lung fibroblasts. IL-4R level and affinity were analyzed using a monoclonal anti-IL-4R Ab and equilibrium binding analysis with I-125- labeled IL-4. Reverse transcriptase PCR demonstrated the presence of mRNA for membrane-bound and soluble IL-4R. Lung fibroblast subsets secrete soluble IL-4R protein at dramatically different levels, as detected by an ELISA. Thy-1(+) and Thy-1(-) lung fibroblasts were treated with IL-4 to determine whether this cytokine was profibrotic. Thy-1(+) fibroblasts responded to IL-4 by proliferating and up-regulating collagen production. In contrast, Thy-1(-) fibroblasts proliferate to a lesser degree than Thy-1(+) fibroblasts and were not stimulated to secrete increased levels of collagen. Overall, these results suggest that elevated levels of IL-4 at a site of injury could result in the development of fibrosis by enhancing fibroblast subset proliferation and collagen synthesis. C1 UNIV ROCHESTER,CTR CANC,SCH MED & DENT,ROCHESTER,NY 14642. UNIV ROCHESTER,SCH MED & DENT,DEPT MICROBIOL & IMMUNOL,ROCHESTER,NY 14642. UNIV ROCHESTER,SCH MED & DENT,DEPT PEDIAT,ROCHESTER,NY 14642. IMMUNEX CORP,SEATTLE,WA 98101. USAF,MED CTR,LACKLAND AFB,TX 78236. FU NCI NIH HHS [CA55305, CA11198, CA42739] NR 37 TC 141 Z9 142 U1 0 U2 1 PU AMER ASSOC IMMUNOLOGISTS PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 SN 0022-1767 J9 J IMMUNOL JI J. Immunol. PD APR 1 PY 1994 VL 152 IS 7 BP 3606 EP 3614 PG 9 WC Immunology SC Immunology GA NC609 UT WOS:A1994NC60900039 PM 7908305 ER PT J AU ZANGWILL, KM STOUT, RW CARLONE, GM PAIS, L HAREKEH, P MITCHELL, S WOLFE, WH BLACKWOOD, V PLIKAYTIS, BD WENGER, JD AF ZANGWILL, KM STOUT, RW CARLONE, GM PAIS, L HAREKEH, P MITCHELL, S WOLFE, WH BLACKWOOD, V PLIKAYTIS, BD WENGER, JD TI DURATION OF ANTIBODY-RESPONSE AFTER MENINGOCOCCAL POLYSACCHARIDE VACCINATION IN US AIR-FORCE PERSONNEL SO JOURNAL OF INFECTIOUS DISEASES LA English DT Article ID CHILDREN; DISEASE; SERUM; AGE AB The long-term kinetics of the immunologic response after vaccination of adults with Neisseria meningitidis polysaccharide vaccine is unknown. Total meningococcal anti-capsular antibody response (measured by ELISA) and serum bactericidal activity after routine vaccination with quadrivalent meningococcal vaccine were evaluated in US Air Force personnel. In a retrospective cross-sectional study, blood samples were obtained from similar to 40 personnel before vaccination, at 1 and 4-6 months, and at 2, 3, 4, 6, 8, and 10 years after vaccination. Total anti-group A and -group C capsular antibody levels-and bactericidal activity peaked 1 month after vaccination and declined substantially by 2 years. At each interval, significantly higher levels of total antibody and bactericidal activity were detected than before vaccination. Anti-capsular antibodies and bactericidal activity persisted for up to 10 years after immunization. These and further studies on the serologic measure of protection against meningococcal disease are important for evaluation of candidate vaccines and development of recommendations for immunization. C1 CTR DIS CONTROL & PREVENT,NATL CTR INFECT DIS,CHILDHOOD & RESP DIS BRANCH,ATLANTA,GA 30333. CTR DIS CONTROL & PREVENT,NATL CTR INFECT DIS,DIV BACTERIAL & MYCOT DIS,ATLANTA,GA 30341. AOES,ARMSTRONG LAB,DIV AEROSP MED,DIV EPIDEMIOL RES,BROOKS AFB,TX. WILFORD HALL USAF MED CTR,TEXAS PREVENT MED DIV,LACKLAND AFB,TX 78236. AMER UNIV BEIRUT,DEPT BIOL,BEIRUT,LEBANON. NR 22 TC 74 Z9 77 U1 0 U2 2 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 APR PY 1994 VL 169 IS 4 BP 847 EP 852 PG 6 WC Immunology; Infectious Diseases; Microbiology SC Immunology; Infectious Diseases; Microbiology GA NP111 UT WOS:A1994NP11100020 PM 8133100 ER PT J AU UVEGES, RE GRIMWOOD, RE SLAWSKY, LD MARKS, JG AF UVEGES, RE GRIMWOOD, RE SLAWSKY, LD MARKS, JG TI EPIDEMIOLOGY OF HAND DERMATITIS IN DENTAL PERSONNEL SO JOURNAL OF INVESTIGATIVE DERMATOLOGY LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,DEPT DERMATOL,SAN ANTONIO,TX 78236. HERSHEY MED CTR,DEPT DERMATOL,HERSHEY,PA. KEESLER MED CTR,SERV DERMATOL,BILOXI,MS. NR 0 TC 0 Z9 0 U1 0 U2 0 PU BLACKWELL SCIENCE INC PI CAMBRIDGE PA 238 MAIN ST, CAMBRIDGE, MA 02142 SN 0022-202X J9 J INVEST DERMATOL JI J. Invest. Dermatol. PD APR PY 1994 VL 102 IS 4 BP 619 EP 619 PG 1 WC Dermatology SC Dermatology GA NF406 UT WOS:A1994NF40600596 ER PT J AU NARAYAN, KS TAYLOR, BE SPRY, RJ FERGUSON, JB AF NARAYAN, KS TAYLOR, BE SPRY, RJ FERGUSON, JB TI PHOTOCONDUCTIVITY OF THE LADDER POLYMER BBL SO JOURNAL OF LUMINESCENCE LA English DT Article; Proceedings Paper CT 1993 International Conference on Luminescence (ICL 93) CY AUG 09-13, 1993 CL UNIV CONNECTICUT, STORRS, CT SP UNIV CONNECTICUT, OPT SOC AMER, AMER PHYS SOC, IEEE, LASER & ELECTRO OPT SOC, INT UNION PURE & APPL PHYS, INT SCI FDN, UNIV CONNECTICUT RES FDN HO UNIV CONNECTICUT AB The absorption and photoconduction properties of the ladder polymer polybenzimidazo-benzoisoquinoline, BBL, are studied. The steady-state photoconductivity was measured as a function of photon energy, electric field, temperature, and chopper frequency. The photocurrent response as a function of energy precedes the absorption and shows a broad tail around the band edge in contrast to the sharp absorption edge near 1.68 eV. C1 MIAMI UNIV,HAMILTON,OH 45011. WRIGHT LAB,MAT DIRECTORATE,WL,MLBP,WRIGHT PATTERSON AFB,OH 45433. RP NARAYAN, KS (reprint author), SYSTRAN CORP,WL,MLBP,WRIGHT PATTERSON AFB,OH 45433, USA. RI Narayan, K/I-5490-2012 NR 10 TC 4 Z9 4 U1 0 U2 7 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-2313 J9 J LUMIN JI J. Lumines. PD APR PY 1994 VL 60-1 BP 482 EP 484 DI 10.1016/0022-2313(94)90197-X PG 3 WC Optics SC Optics GA NR361 UT WOS:A1994NR36100120 ER PT J AU KITCHENS, JH AF KITCHENS, JH TI THE BOMBING OF AUSCHWITZ REEXAMINED SO JOURNAL OF MILITARY HISTORY LA English DT Article RP KITCHENS, JH (reprint author), USAF,HIST RES AGENCY,MAXWELL AFB,AL, USA. NR 39 TC 7 Z9 7 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 APR PY 1994 VL 58 IS 2 BP 233 EP 266 DI 10.2307/2944021 PG 34 WC History SC History GA NE443 UT WOS:A1994NE44300002 ER PT J AU SONG, QW TALBOT, PJ MAURICE, JH AF SONG, QW TALBOT, PJ MAURICE, JH TI PLZT BASED HIGH-EFFICIENCY ELECTROOPTIC GRATING FOR OPTICAL SWITCHING SO JOURNAL OF MODERN OPTICS LA English DT Article ID LENS AB A high diffraction efficiency electro-optic phase grating is fabricated by depositing transparent interdigital electrodes on a lanthanum-modified lead zirconate titanate ceramic wafer. The diffraction efficiency is controlled by an applied d.c. voltage. The zero-order light is completely shut off when the first-order diffraction reaches its maximum, with a voltage of 140 V. The device can be used as a voltage-controlled switch in optical interconnects. C1 USAF,CTR PHOTON,RL OCPB,GRIFFISS AFB,NY 13441. RP SONG, QW (reprint author), SYRACUSE UNIV,DEPT ELECT & COMP ENGN,SYRACUSE,NY 13244, USA. NR 10 TC 15 Z9 16 U1 0 U2 2 PU TAYLOR & FRANCIS LTD PI LONDON PA ONE GUNDPOWDER SQUARE, LONDON, ENGLAND EC4A 3DE SN 0950-0340 J9 J MOD OPTIC JI J. Mod. Opt. PD APR PY 1994 VL 41 IS 4 BP 717 EP 727 DI 10.1080/09500349414550731 PG 11 WC Optics SC Optics GA NH532 UT WOS:A1994NH53200007 ER PT J AU VALLEY, MA SHEPLOCK, GJ ROGERS, JN AF VALLEY, MA SHEPLOCK, GJ ROGERS, JN TI PROBABLE CERVICAL MIDLINE EPIDURAL SEPTUM COMPLICATING THE TREATMENT OF A PATIENT WITH UPPER EXTREMITY SYMPATHETICALLY MAINTAINED PAIN SO JOURNAL OF PAIN AND SYMPTOM MANAGEMENT LA English DT Note DE BRACHIAL PLEXOPATHY; CERVICAL EPIDURAL CATHETER; REFLEX SYMPATHETIC DYSTROPHY; SHOULDER-HAND SYNDROME; SYMPATHETICALLY MAINTAINED PAIN; DIAGNOSIS, PHENTOLAMINE INFUSION, TREATMENT ID SHOULDER-HAND SYNDROME; INTRAVENOUS GUANETHIDINE; RADIOLOGIC EVIDENCE; BLOCKADE; PHENTOLAMINE; DYSTROPHY; ANATOMY AB We present a woman who developed left arm sympathetically maintained pain (SMP, or ''shoulder-hand syndrome'') as a result of brachial plexus injury. After confirmatory diagnosis with both stellate local anesthetic block anti intravenous phentolamine infusion the patient had a cervical epidural catheter placed and a local anesthetic infusion started. After numerous unilateral blocks were obtained, a cervical epidurogram demonstrated a probable cervical midline epidural septum. Catheter placement was adjusted, and a successful chemical sympathectomy was performed for 6 days. This resulted in significant relief of the patient's shoulder pain as well as almost complete resolution of the patient's left arm SMP symptoms. This case represents, to our knowledge, the first documentation of the use of phentolamine for the diagnosis of SMP secondary to pathology at a site proximal to that of symptomatology, as well as the first documentation of presumptive cervical midline epidural septum. C1 UNIV TEXAS,HLTH SCI CTR,DEPT ANESTHESIOL,SAN ANTONIO,TX 78284. RP VALLEY, MA (reprint author), WILFORD HALL USAF MED CTR,SGHSA,DEPT ANESTHESIOL,2200 BERGQUIST DR,SUITE 1,LACKLAND AFB,TX 78236, USA. NR 20 TC 3 Z9 3 U1 0 U2 0 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 0885-3924 J9 J PAIN SYMPTOM MANAG JI J. Pain Symptom Manage. PD APR PY 1994 VL 9 IS 3 BP 208 EP 211 DI 10.1016/0885-3924(94)90132-5 PG 4 WC Health Care Sciences & Services; Medicine, General & Internal; Clinical Neurology SC Health Care Sciences & Services; General & Internal Medicine; Neurosciences & Neurology GA NH272 UT WOS:A1994NH27200011 PM 7516959 ER PT J AU CHUNG, SG LIN, CC LEE, ETP AF CHUNG, SG LIN, CC LEE, ETP TI RATE COEFFICIENTS FOR IONIZATION AND 3-BODY ELECTRON-ION RECOMBINATION OF OXYGEN-ATOMS IN THE GROUND AND EXCITED-STATES SO JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER LA English DT Article AB The ionization rate coefficients for oxygen atoms in the ground and excited states (up to n,l = 10,7) have been calculated for electron temperatures between 5 x 10(3) and 2 x 10(5) K. Electron-impact ionization cross sections calculated by means of the Born-Ochkur approximation and the method of exchange distorted waves (with the Ochkur approximation for the exchange) were used to obtain the ionization rate coefficients. Rate coefficients for three-body electron-ion recombination to form oxygen atoms in the ground and excited states are also reported. C1 USAF,PHILLIPS LAB,SYST COMMAND,BEDFORD,MA 01731. RP CHUNG, SG (reprint author), UNIV WISCONSIN,DEPT PHYS,MADISON,WI 53706, USA. NR 10 TC 1 Z9 1 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0022-4073 J9 J QUANT SPECTROSC RA JI J. Quant. Spectrosc. Radiat. Transf. PD APR PY 1994 VL 51 IS 4 BP 629 EP 634 DI 10.1016/0022-4073(94)90116-3 PG 6 WC Optics; Spectroscopy SC Optics; Spectroscopy GA NK481 UT WOS:A1994NK48100009 ER PT J AU MYERS, EF GREGOIRE, MB SPEARS, MC AF MYERS, EF GREGOIRE, MB SPEARS, MC TI QUALITY DELEGATION GRID - A DECISION TOOL FOR EVALUATING DELEGATION OF MANAGEMENT TASKS IN-HOSPITAL DIETETICS DEPARTMENTS SO JOURNAL OF THE AMERICAN DIETETIC ASSOCIATION LA English DT Article ID TECHNICIANS; DIETITIANS AB This research was designed to determine perceptions of the quality of task performance; identify personnel currently performing selected management and food production tasks in a hospital dietetics department; and develop a grid for examining delegation strategies. Information on task quality and delegation was obtained from 309 dietitians and 208 support personnel in 151 hospitals. This information was used to develop a quality delegation grid, The grid is divided into four quadrants: High Quality/High Delegation; High Quality/Low Delegation; Low Quality/High Delegation; and Low Quality/Low Delegation. The grid was used to evaluate the delegation of management tasks reported by participants in this study. Our results indicated that the majority of tasks were placed in the High Quality/High Delegation quadrant (28 tasks) and the Low Quality/Low Delegation quadrant (17 tasks), suggesting that delegation was appropriate for the quality expected if the task was delegated. Three tasks were placed in the Low Quality/High Delegation quadrant indicating that tasks were delegated even though quality of the completed task was perceived as low when delegated, suggesting that dietitians should have performed these tasks themselves. Four tasks were placed in the High Quality/Low Delegation quadrant indicating that dietitians were performing tasks that were perceived to have high quality when performed by support personnel, yet these tasks were rarely delegated. Foodservice directors could use the grid to identify training needs, differentiate perceptions between dietitians and support personnel, and evaluate current delegation patterns. C1 NATL FOOD SERV MANAGEMENT INST,HATTIESBURG,MS 39406. KANSAS STATE UNIV AGR & APPL SCI,INST MANAGEMENT,DEPT HOTEL RESTAURANT,MANHATTAN,KS 66506. RP MYERS, EF (reprint author), USAF,MED CTR,SCOTT AFB,IL 62225, USA. NR 18 TC 0 Z9 0 U1 2 U2 3 PU AMER DIETETIC ASSN PI CHICAGO PA 216 W JACKSON BLVD #800, CHICAGO, IL 60606-6995 SN 0002-8223 J9 J AM DIET ASSOC JI J. Am. Diet. Assoc. PD APR PY 1994 VL 94 IS 4 BP 420 EP 424 DI 10.1016/0002-8223(94)90098-1 PG 5 WC Nutrition & Dietetics SC Nutrition & Dietetics GA NE705 UT WOS:A1994NE70500012 PM 8144810 ER PT J AU ALFANO, S AF ALFANO, S TI DETERMINING SATELLITE CLOSE APPROACHES .2. SO JOURNAL OF THE ASTRONAUTICAL SCIENCES LA English DT Article AB Improvements to the original Alfano/Negron Close Approach Software (ANCAS) tool are presented that increase accuracy and/or step size. Minimum spacing between two satellites is determined by creating a time-dependent third-order relative-velocity waveform produced from adjoining pairs of distances, velocities, and accelerations. Times of closest approach are obtained by extracting the real roots of the localized polynomial with the associated distances reconstructed from a set of fifth-order polynominals. Close approach entrance and exit times for an ellipsoidal quadric surface are found using a similar process. Both methods require a simplified computation of acceleration terms of the objects of interest. For this study a close approach truth table is constructed using a 0.1 second sequential step along the orbits and differencing the two position vectors. The simulation results show this algorithm produces close approach times almost identical to those of the truth model for larger time steps (up to 10 minutes), with a corresponding reduction in computer runtime. The results are created from real orbital data and include solution sets for three operational uses of close-approach logic. Satellite orbital motion is modeled by, but not limited to, first-order secular perturbations caused by mass anomalies. RP ALFANO, S (reprint author), USAF,DIV SPACE & MISSILES DYNAM,PHILLIPS LAB,PL-VTA,3550 ABERDEEN AVE SE,KIRTLAND AFB,NM 87117, USA. NR 11 TC 19 Z9 21 U1 0 U2 0 PU AMER ASTRONAUTICAL SOC PI SPRINGFIELD PA 6352 ROLLING MILL PLACE SUITE 102, SPRINGFIELD, VA 22152 SN 0021-9142 J9 J ASTRONAUT SCI JI J. Astronaut. Sci. PD APR-JUN PY 1994 VL 42 IS 2 BP 143 EP 152 PG 10 WC Engineering, Aerospace SC Engineering GA PG181 UT WOS:A1994PG18100002 ER PT J AU SCORDILISKELLEY, C CARLIN, RT AF SCORDILISKELLEY, C CARLIN, RT TI STABILITY AND ELECTROCHEMISTRY OF LITHIUM IN ROOM-TEMPERATURE CHLOROALUMINATE MOLTEN-SALTS SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY LA English DT Article ID IONIC LIQUIDS; SODIUM AB Addition of protons to buffered neutral AlCl3:MEIC:LiCl (MEIC = 1-methyl-3-ethylimidazolium chloride) melts allows elemental lithium to be deposited and stripped at a 250 mum tungsten electrode. Chronopotentiometric studies performed at current densities from 0.16 to 3.06 mA cm-2 show minimal overpotentials for lithium deposition and stripping. When the lithium is stripped immediately after deposition, the stripping to deposition efficiency approaches 80%; however, when the deposited lithium is allowed to contact the electrolyte at open circuit for several minutes, the efficiencies drop rapidly due to the reaction of lithium with the melt. In basic (chloride-rich) AlCl3:MEIC melts, elemental lithium appears to be stable for long times with and without the addition of protons. In addition, the maximum lithium anodization current density achieved in basic melts is higher than the buffered neutral melts. C1 USAF ACAD,FRANK J SEILER RES LAB,COLORADO SPRINGS,CO 80840. NR 9 TC 20 Z9 20 U1 1 U2 4 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 APR PY 1994 VL 141 IS 4 BP 873 EP 875 DI 10.1149/1.2054849 PG 3 WC Electrochemistry; Materials Science, Coatings & Films SC Electrochemistry; Materials Science GA NF410 UT WOS:A1994NF41000010 ER PT J AU DELONG, HC WILKES, JS CARLIN, RT AF DELONG, HC WILKES, JS CARLIN, RT TI ELECTRODEPOSITION OF PALLADIUM AND ADSORPTION OF PALLADIUM-CHLORIDE ONTO SOLID ELECTRODES FROM ROOM-TEMPERATURE MOLTEN-SALTS SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY LA English DT Article ID CHLOROALUMINATE IONIC LIQUIDS; REMOVAL; PROTONS AB The electrodeposition of palladium onto various electrode surfaces was examined in room temperature AlCl3-MEIC molten salts with AlCl3 mole fractions, N, from 0.33 < N < 0.5 (basic melts) to 0.5 < N < 0.67 (acidic melts) and at N = 0.5 (neutral melt). The behavior of palladium electrodeposition was markedly dependent on the mole fraction of AlCl3 in the molten salts. The palladium reduction potential shifts approximately +2.0 V when the melt is changed from basic to acidic. Nucleation overpotentials were evident in basic melts, and to a lesser extent in acidic and neutral melts. In acidic melts, the reduction of the sparingly soluble palladium complex displays characteristics distinctive of an adsorption phenomenon, while the oxidation process shows considerable broadening. Oxidation of a palladium electrode in an N = 0.55 acidic melt produces an insoluble palladium chloride layer (approximately a monolayer) on the electrode surface which protects the underlying metal from further oxidation. Reduction of this surface anchored palladium chloride layer is rapid and provides a high cathodic current density. This behavior in acidic melts is pointedly different from the reduction process in a basic melt where the reduction of the soluble palladium chloro complex exhibits a diffusion wave with nucleation effects. RP DELONG, HC (reprint author), USAF ACAD,FRANK J SEILER RES LAB,COLORADO SPRINGS,CO 80840, USA. NR 23 TC 39 Z9 40 U1 2 U2 14 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 APR PY 1994 VL 141 IS 4 BP 1000 EP 1005 DI 10.1149/1.2054831 PG 6 WC Electrochemistry; Materials Science, Coatings & Films SC Electrochemistry; Materials Science GA NF410 UT WOS:A1994NF41000032 ER PT J AU KIM, YY YEO, YK AF KIM, YY YEO, YK TI HALL-EFFECT AND LOW-TEMPERATURE PHOTOLUMINESCENCE MEASUREMENTS OF RARE-EARTH ERBIUM (ER) IMPLANTED GAAS SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article ID CHEMICAL VAPOR-DEPOSITION; MOLECULAR-BEAM EPITAXY; DOPED GAAS; INP; LUMINESCENCE; EXCITATION; GAP; YB AB Hall-effect and laser-excited low-temperature photoluminescence (PL) techniques were used to investigate the effect of rare-earth (RE) element Er-doped GaAs. Hall-effect measurements show that the introduction of Er and rapid thermal-annealing (RTA) treatment of undoped semi-insulating and p-type GaAs substrates tend to make the substrates more conducting, however, in general, leave the substrate semi-insulating. For the Er-implanted n-type GaAs, the Er-doping reduces the electron concentration in the implant region. PL measurements show that the maximum intensity of the Er3+ intra-4f transitions occurs at a 750 degrees C anneal for undoped semi-insulating and n-type GaAs, and at 725 degrees C for p-type GaAs, These Er3+ intra-4f emissions may originate from Er ions at the interstitial sites rather than substitutional sites in the GaAs lattice. The PL spectra of Er-implanted GaAs for identical Er-doping and annealing conditions show that the Er-4f luminescence is more intense in p-type compared to semi-insulating and n-type GaAs. The annealing study also shows that the Er is forming at least two different luminescence centers upon annealing. C1 USAF,INST TECHNOL,DEPT ENGN PHYS,WRIGHT PATTERSON AFB,OH 45433. RP KIM, YY (reprint author), KOREA MIL ACAD,DEPT ELECT ENGN,SEOUL 139799,SOUTH KOREA. NR 20 TC 1 Z9 1 U1 0 U2 0 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD APR PY 1994 VL 27 IS 2 BP 163 EP 167 PG 5 WC Physics, Multidisciplinary SC Physics GA NF561 UT WOS:A1994NF56100007 ER PT J AU REED, RA BROWN, DG HIERS, RS CROMWELL, BK ZACCARDI, VA AF REED, RA BROWN, DG HIERS, RS CROMWELL, BK ZACCARDI, VA TI COMPATIBILITY OF INFRARED BAND MODELS WITH SCATTERING SO JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER LA English DT Article ID ALUMINUM-OXIDE; MU-M; PREDICTION AB Techniques for the computation of radiative heating from aluminized solid propellant rocket exhaust plumes must account for infrared emission and absorption by hot H2O and CO2 in the presence of strong three-dimensional aerosol scattering by micron-sized Al2O3 droplets and particles. Radiative heating computations are usually performed over wide spectral intervals using infrared band models. However, no rigorous extension to infrared band models has been proposed for situations with scattering. Indeed, band models and scattering are widely held to be incompatible. Practical engineering calculations of plume radiative heating have therefore proceeded, using various approximations to the transport equation. Although the errors in these approximations are believed to be reasonably small, they have never been quantified because of the lack of rigorous results. In order to help remedy this deficiency, this article develops two different rigorous solutions. Although they are currently restricted to homogeneous media, they nevertheless provide a previously unavailable means or calibrating code performance and assessing the accuracy of various approximation schemes. Some sample applications are provided for the Space Shuttle Solid Rocket Booster. RP REED, RA (reprint author), SVERDRUP TECHNOL,AEDC GRP,ARNOLD AFB,TN 37389, USA. NR 34 TC 4 Z9 4 U1 0 U2 1 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0887-8722 J9 J THERMOPHYS HEAT TR JI J. Thermophys. Heat Transf. PD APR-JUN PY 1994 VL 8 IS 2 BP 208 EP 215 DI 10.2514/3.525 PG 8 WC Thermodynamics; Engineering, Mechanical SC Thermodynamics; Engineering GA NG696 UT WOS:A1994NG69600003 ER PT J AU SHOPE, FL AF SHOPE, FL TI CONJUGATE CONDUCTION-CONVECTION HEAT-TRANSFER WITH A HIGH-SPEED BOUNDARY-LAYER SO JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER LA English DT Article AB A space-marching boundary-layer program has been extensively modified to model conjugate conduction-convection heat transfer for the case of coflowing high-speed gas and liquid coolant. Solid body conduction is modeled as one-dimensional, constant property heat transfer. The coolant is modeled empirically as a bulk fluid with combined forced convection and subcooled nucleate boiling. The flow solver was modified to solve the group of conjugate boundary equations simultaneously and implicitly with the existing momentum and energy equations for the gas. The resulting conjugate conduction-convection program has been applied to analysis of failure of a backside water-cooled nozzle for a high enthalpy, supersonic wind tunnel. The computational results have been used to establish that the primary failure mode is nucleate-boiling burnout and to propose a numerical burnout limit applicable to the specific nozzle configuration. RP SHOPE, FL (reprint author), ARNOLD ENGN DEV CTR,CALSPAN CORP,OPERAT COMPUTAT FLUID DYNAM SECT,740 4TH ST,ARNOLD AFB,TN 37389, USA. NR 22 TC 6 Z9 7 U1 0 U2 1 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0887-8722 J9 J THERMOPHYS HEAT TR JI J. Thermophys. Heat Transf. PD APR-JUN PY 1994 VL 8 IS 2 BP 275 EP 281 DI 10.2514/3.534 PG 7 WC Thermodynamics; Engineering, Mechanical SC Thermodynamics; Engineering GA NG696 UT WOS:A1994NG69600012 ER PT J AU RICHTER, R GOTTSCHLICH, JM AF RICHTER, R GOTTSCHLICH, JM TI THERMODYNAMIC ASPECTS OF HEAT-PIPE OPERATION SO JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER LA English DT Article AB In this article the general operation and performance of heat pipes is being approached from fundamental thermodynamic considerations. This is in contrast to the classic heat pipe design analysis which equates an available ''capillary pressure'' with the two pressure drops associated with the circulation of the working fluid in the vapor and liquid phase and body forces where applicable, and erroneously attributing the circulation of the working fluid in a heat pipe to ''capillary pumping.'' This article shows that the working fluid circulates in a heat pipe as the result of a thermodynamic cycle in which thermal energy is converted to kinetic energy. The basic analysis which is presented, and which can be extended in future research, identifies the total internal temperature difference over which the heat pipe operates and the heat pipe operating temperature as the two key operating parameters in full agreement with all observed heat transfer phenomena. For given physical characteristics of a heat pipe, i.e., length, internal and external diameters, wick, artery or groove structure, the thermal transport performance below its operating limits is shown to be entirely a function of these two parameters as it is for any other heat conductor. The thermodynamic cycle clarifies the often substantial discrepancy between the predicted and the actually realized thermal power transfer capacity of a heat pipe. C1 WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. RP RICHTER, R (reprint author), CALTECH,JET PROP LAB,4800 OAK DR,M-S 157-102,PASADENA,CA 91104, USA. NR 13 TC 12 Z9 14 U1 0 U2 3 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0887-8722 J9 J THERMOPHYS HEAT TR JI J. Thermophys. Heat Transf. PD APR-JUN PY 1994 VL 8 IS 2 BP 334 EP 340 DI 10.2514/3.543 PG 7 WC Thermodynamics; Engineering, Mechanical SC Thermodynamics; Engineering GA NG696 UT WOS:A1994NG69600021 ER PT J AU WOLFE, WH MICHALEK, JE MINER, JC PIRKLE, JL CAUDILL, SP PATTERSON, DG NEEDHAM, LL AF WOLFE, WH MICHALEK, JE MINER, JC PIRKLE, JL CAUDILL, SP PATTERSON, DG NEEDHAM, LL TI DETERMINANTS OF TCDD HALF-LIFE IN VETERANS OF OPERATION RANCH HAND SO JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH LA English DT Article ID VIETNAM AB The half-life of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) changed significantly with body fat and age in 337 members of Operation Ranch Hand, the Air Force unit responsible for the aerial spraying of Agent Orange in Vietnam. Using paired TCDD measurements derived from serum collected in 1982 and in 1987, we investigated how TCDD half-life varied with percent body fat (PBF), relative changes in PBF, and age. We found that half-life increased significantly with increasing PBF and decreased significantly with increasing relative change in PBF and with age. The median observed half-life of TCDD for these 337 veterans is 11.3 yr with a nonparametric 95% confidence interval of 10.0-14.1 yr. C1 USAF,ARMSTRONG LAB,DIV EPIDEMIOL RES,2510 KENNEDY DR,STE 117,BROOKS AFB,TX 78235. CTR DIS CONTROL & PREVENT,ATLANTA,GA. RI Needham, Larry/E-4930-2011 NR 15 TC 55 Z9 56 U1 0 U2 1 PU TAYLOR & FRANCIS PI BRISTOL PA 1900 FROST ROAD, SUITE 101, BRISTOL, PA 19007-1598 SN 0098-4108 J9 J TOXICOL ENV HEALTH JI J. Toxicol. Environ. Health PD APR PY 1994 VL 41 IS 4 BP 481 EP 488 PG 8 WC Environmental Sciences; Public, Environmental & Occupational Health; Toxicology SC Environmental Sciences & Ecology; Public, Environmental & Occupational Health; Toxicology GA NE407 UT WOS:A1994NE40700007 PM 8145287 ER PT J AU KEARSE, WS JOSEPH, AE SABANEGH, ES AF KEARSE, WS JOSEPH, AE SABANEGH, ES TI TRANSCATHETER EMBOLIZATION OF LARGE IDIOPATHIC RENAL ARTERIOVENOUS-FISTULA SO JOURNAL OF UROLOGY LA English DT Note DE ARTERIOVENOUS FISTULA; EMBOLIZATION, THERAPEUTIC; RENAL CIRCULATION ID OCCLUSION AB Renal arteriovenous fistulas are unusual lesions with a variety of clinical manifestations. Congenital and acquired forms have been treated successfully with transcatheter embolization for 2 decades. In the case of large aneurysmal lesions the risk of inadvertent pulmonary embolism has traditionally precluded this approach and necessitated open surgery. However, with refinements in angiographic equipment and technique, such an approach is now feasible and desirable. C1 WILFORD HALL USAF MED CTR,DEPT UROL,SAN ANTONIO,TX. WILFORD HALL USAF MED CTR,DEPT INTERVENT RADIOL,SAN ANTONIO,TX. NR 12 TC 27 Z9 27 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 APR PY 1994 VL 151 IS 4 BP 967 EP 969 PG 3 WC Urology & Nephrology SC Urology & Nephrology GA NA970 UT WOS:A1994NA97000038 PM 8126838 ER PT J AU RITCHEY, ML SINHA, A ARGUESO, L AF RITCHEY, ML SINHA, A ARGUESO, L TI CONGENITAL FISTULA OF THE PENILE URETHRA SO JOURNAL OF UROLOGY LA English DT Article DE CONGENITAL DEFECTS; URETHRA; FISTULA; HYPOSPADIAS AB Congenital fistula of the penile urethra is rare. We report a case associated with glandular hypospadias without chordee, and discuss the possible etiology and management of this unusual anomaly. C1 WILFORD HALL USAF MED CTR,DEPT UROL,SAN ANTONIO,TX. RP RITCHEY, ML (reprint author), UNIV MICHIGAN,UROL SECT,ANN ARBOR,MI 48109, USA. NR 12 TC 6 Z9 8 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 APR PY 1994 VL 151 IS 4 BP 1061 EP 1062 PG 2 WC Urology & Nephrology SC Urology & Nephrology GA NA970 UT WOS:A1994NA97000083 PM 8126793 ER PT J AU MOTA, GF NELSON, ML KODRES, UR AF MOTA, GF NELSON, ML KODRES, UR TI OBJECT-ORIENTED DECOMPOSITION FOR DISTRIBUTED SYSTEMS SO MICROPROCESSING AND MICROPROGRAMMING LA English DT Article DE CONCURRENCY; DISTRIBUTED COMPUTING; OBJECT-ORIENTED PROGRAMMING; REAL-TIME SYSTEMS; TASK DISTRIBUTION AB Conventional object-oriented design methodologies lead to a hierarchy of classes, but do not suggest which classes/objects should be loaded on which processors in a distributed system. We present the Decomposition Cost Evaluation Model (DCEM) as an approach to this problem. DCEM brings the mapping problem to a higher level of abstraction where the question is which classes, rather than which tasks, should be loaded on which processors. To support these decisions we define communication and computation cost functions for objects, classes, and hierarchies. We then introduce Confined Space Search Decomposition (CSSD) which enhances parallel operations of applications utilizing a tree topology for the processor interconnection scheme. To reduce the penalties of load imbalance, we include a distributed dynamic load balancing heuristic called Object Reincarnation (OR) in which no additional communication costs are incurred. C1 BRAZILIAN NAVY,CDR,BR-21941150 RIO JANEIRO,BRAZIL. USAF,HQ USCINCPAC,CAMP HM SMITH,HI 96861. USN,POSTGRAD SCH,DEPT COMP SCI,MONTEREY,CA 93943. NR 17 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0165-6074 J9 MICROPROC MICROPROG JI Microprocess. Microprogr. PD APR PY 1994 VL 40 IS 2-3 BP 91 EP 102 DI 10.1016/0165-6074(94)90078-7 PG 12 WC Computer Science, Hardware & Architecture SC Computer Science GA NK031 UT WOS:A1994NK03100002 ER PT J AU SABAAWI, M HOLMES, TF FRAGALA, MR AF SABAAWI, M HOLMES, TF FRAGALA, MR TI DRUG-INDUCED AKATHISIA - SUBJECTIVE EXPERIENCE AND OBJECTIVE FINDINGS SO MILITARY MEDICINE LA English DT Article AB Drug-induced akathisia, especially antidepressant-induced akathisia, is a concern for mental health professionals of all disciplines, especially since the introduction of the so-called third-generation antidepressants such as fluoxetine. Failure to identify and treat this disorder can result in extraordinary suffering for the patient, which can in turn lead to preoccupation with the idea of suicide, specifically by jumping. The goal of this paper is to provide clinicians with an understanding of the protean presentations of this disorder along with a discussion of the current theories of etiology and pathophysiology as well as a strategy for identification and treatment. RP SABAAWI, M (reprint author), USAF,MED CTR,SGHA,1050 W PERIMETER,SUITE C4-1,WASHINGTON,DC 20331, USA. NR 0 TC 3 Z9 3 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 APR PY 1994 VL 159 IS 4 BP 286 EP 291 PG 6 WC Medicine, General & Internal SC General & Internal Medicine GA NX696 UT WOS:A1994NX69600010 PM 20058421 ER PT J AU BOLTON, JWR ALDEA, GS AF BOLTON, JWR ALDEA, GS TI PULMONARY-ARTERY LACERATION BY A PULMONARY-ARTERY CATHETER - A CASE-REPORT AND REVIEW OF THE LITERATURE SO MILITARY MEDICINE LA English DT Review AB A 74-year-old white man with unstable angina underwent an uneventful urgent four-vessel coronary bypass operation at which time a Tenkhoff catheter was placed because of renal insufficiency. Two hours following arrival in the intensive care unit, the patient demonstrated hemodynamic instability, progressive acidosis, and a fall in his hematocrit from 35% to 18%. In retrospect, this instability was initiated by wedging of the pulmonary artery catheter. Hemorrhagic complications involving the use of flow-directed, balloon-tipped catheters are rare following cardiopulmonary bypass operations. The estimated incidence is reported at 1 to 2 per 1,000, although many may go unreported. The mortality rate is in excess of 50%. We report a case of a successfully repaired laceration of the pulmonary artery caused by a pulmonary artery catheter following cardiac surgery, and provide a review of the literature. As illustrated by this case and emphasized in the literature, salvage of patients who suffer this complication requires a high index of suspicion in order to rapidly recognize the injury and intervene with the appropriate therapy. RP BOLTON, JWR (reprint author), WHMC,SGHST,DEPT CARDIOTHORAC SURG,2200 BERGQUIST DR,SUITE 1,LACKLAND AFB,TX 78236, 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 APR PY 1994 VL 159 IS 4 BP 357 EP 360 PG 4 WC Medicine, General & Internal SC General & Internal Medicine GA NX696 UT WOS:A1994NX69600027 PM 20058438 ER PT J AU BOLTON, JWR ALDEA, GS AF BOLTON, JWR ALDEA, GS TI PERFORATION OF THE HEART BY AN INFERIOR VENA-CAVA FILTER SO MILITARY MEDICINE LA English DT Article AB The use of vena caval filters to prevent pulmonary emboli has become routine. Although the complications have been well described, we present the first reported case of perforation of the heart and subsequent cardiac tamponade several months following placement of a Gintureo-Roehm ''bird's nest'' filter. RP BOLTON, JWR (reprint author), WHMC,SGHST,2200 BERGQUIST DR,SUITE 1,LACKLAND AFB,TX 78236, 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 APR PY 1994 VL 159 IS 4 BP 360 EP 362 PG 3 WC Medicine, General & Internal SC General & Internal Medicine GA NX696 UT WOS:A1994NX69600028 PM 20058439 ER PT J AU GARSTANG, M MASSIE, HL HALVERSON, J GRECO, S SCALA, J AF GARSTANG, M MASSIE, HL HALVERSON, J GRECO, S SCALA, J TI AMAZON COASTAL SQUALL LINES .1. STRUCTURE AND KINEMATICS SO MONTHLY WEATHER REVIEW LA English DT Article ID CONVECTIVE SYSTEMS; OZONE PRODUCTION; MESOSCALE; MODEL AB Mesoscale to synoptic-scale squall lines that form along the northeastern coast of South America as sea-breeze-induced instability lines and propagate through the Amazon Basin are investigated using data collected during the April-May 1987 Amazon Boundary Layer Experiment (ABLE 2B). These systems, termed ''Amazon coastal squall lines'' (ACSL), have been noted by others, but details of the structure and evolution of the ACSL are limited. The present paper uses Geostationary Operational Environmental Satellite, radar, upper-air rawinsonde, and surface Portable Automated Mesonet data to describe the structure, dynamics, and life cycle of the ACSL. Twelve ACSL were sampled during ABLE 2B, and three cases are discussed in detail. The ACSL are discontinuous lines of organized mesoscale cloud clusters that propagate across the central Amazon Basin at speeds of 50-60 km h-1. The ACSL undergo six possible life cycle stages: coastal genesis, intensification, maturity, weakening, reintensification, and dissipation. Analysis also indicates that mesoscale clusters within the ACSL are composed of three distinct cloud components: a prestorm region that often contains towering cumulus, leading edge convection (LEC), and multiple, precipitating cloud layers in the trailing stratiform region (TSR). Divergence and vertical velocity calculations indicate deep vertical ascent in the LEC and a region of midlevel convergence (almost-equal-to 500 mb) in the TSR. The latter midlevel convergence is associated with a weak updraft above 500 mb and an unsaturated downdraft below. Vertical motions in the TSR are an order of magnitude smaller than in the LEC. Substantial shear in the low-level inflow occurs in all three case studies and, as suggested by model simulations, may play an important role in the longevity (24-48 h) of the ACSL. Profiles of equivalent potential temperature theta(e) taken from the prestorm, leading edge convection and trailing stratiform regions demonstrate that the ACSL stabilize the troposphere in their wake and remove a tropospheric minimum of theta(e). It is hypothesized that the removal of this minimum is accomplished both by direct mixing via vertical motions in the LEC (''hot towers'') and also through detrainment in the multiple-layered TSR. Part I describes the structure and kinematics of the ACSL, while Part II deals with the heat and moisture transports of these systems. C1 NASA,GODDARD SPACE FLIGHT CTR,SEVERE STORMS BRANCH,GREENBELT,MD 20771. USAF,WEATHER SERV HEADQUARTERS,SCOTT AFB,IL 62225. RP GARSTANG, M (reprint author), UNIV VIRGINIA,DEPT ENVIRONM SCI,CLARK HALL,CHARLOTTESVILLE,VA 22903, USA. NR 44 TC 55 Z9 59 U1 1 U2 3 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0027-0644 J9 MON WEATHER REV JI Mon. Weather Rev. PD APR PY 1994 VL 122 IS 4 BP 608 EP 622 DI 10.1175/1520-0493(1994)122<0608:ACSLPI>2.0.CO;2 PG 15 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA NC624 UT WOS:A1994NC62400002 ER PT J AU GRECO, S SCALA, J HALVERSON, J MASSIE, HL TAO, WK GARSTANG, M AF GRECO, S SCALA, J HALVERSON, J MASSIE, HL TAO, WK GARSTANG, M TI AMAZON COASTAL SQUALL LINES .2. HEAT AND MOISTURE TRANSPORTS SO MONTHLY WEATHER REVIEW LA English DT Article ID MESOSCALE CONVECTIVE SYSTEMS; NORTHEAST BRAZIL; CLOUD CLUSTERS; BUDGETS; SIMULATION; CUMULUS AB The column response to propagating deep convection over the central Amazon Basin is investigate with rawinsonde data from the Amazon Boundary Layer Experiment (ABLE 2B). Heat and moisture budgets are calculated from a relatively small surface network (1000 km2) to determine the distribution of heating within the convective and stratiform regions of three Amazon coastal squall lines (ACSL) in varying degrees of maturity. Portable Automated Mesonet instrumentation, satellite imagery, and radar data are used to partition the large-scale system into distinct cloud and rainfall components. The dimensions of the surface network enable an evaluation of the collective effects of an ensemble of convective elements that are considered to be representative of the synoptic-scale system. Calculations of Q1 and Q2 from the ABLE 2B network follow the methods used by Johnson and Young and Gallus and Johnson. The computations are performed over intervals of 3-6 h using composite soundings derived from a network average. The distribution of heating and drying for the 1 May 1987 ACSL and its variation in time are shown to be similar to the results of other studies, particularly those of West African squall lines. Peak heating occurs between 500 and 550 mb, and peak drying is concentrated between 450 and 650 mb. A lack of separation between the peaks in the convective Q, and Q2 profiles indicates a coupling of Q1 and Q2 and suggests the presence of significant stratiform processes in the absence of pronounced eddy transports. The vertical eddy flux of total heat (F) is calculated by assuming the horizontal eddy flux term is small relative to the net vertical transports. Even though the horizontal transfer of heat and moisture may not be negligible in this study, the area encompassed by the surface network is large relative to the area occupied by active portions of convective clouds. From a network perspective, these cloud-scale fluxes are considered small relative to the vertical eddy flux of total heat. The distribution of vertical eddy flux compares favorably with a mesoscale calculation performed by Gallus and Johnson for a midlatitude squall line suggesting the assumptions regarding the net contribution of the horizontal fluxes may be reasonable. Convective transports of heat are equalled by transports occurring within the stratiform region of the system. The heat transported by a single ACSL when extrapolated to the ACSL as a whole represents a significant contribution to the global heat balance. C1 UNIV VIRGINIA,DEPT ENVIRONM SCI,CLARK HALL,CHARLOTTESVILLE,VA 22903. USAF,WEATHER SERV HEADQUARTERS,SCOTT AFB,IL 62225. SM SYST & RES CORP,WASHINGTON,DC. NASA,GODDARD SPACE FLIGHT CTR,SEVERE STORMS BRANCH,GREENBELT,MD 20771. NR 44 TC 19 Z9 21 U1 0 U2 2 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0027-0644 J9 MON WEATHER REV JI Mon. Weather Rev. PD APR PY 1994 VL 122 IS 4 BP 623 EP 635 DI 10.1175/1520-0493(1994)122<0623:ACSLPI>2.0.CO;2 PG 13 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA NC624 UT WOS:A1994NC62400003 ER PT J AU SHIN, WS ALLEN, DB AF SHIN, WS ALLEN, DB TI AN INTERACTIVE PAIRED-COMPARISON METHOD FOR BICRITERION INTEGER PROGRAMMING SO NAVAL RESEARCH LOGISTICS LA English DT Article ID MATHEMATICAL PROGRAMS; ALGORITHM; CRITERIA AB This article proposes an interactive paired comparison region elimination method for bicriterion integer mathematical programming problems. The new method isolates the best compromise solution by successively evaluating a pair of associated supported nondominated solutions. The efficiency of the method is tested by solving randomly generated problems based on varying shapes of efficient frontiers. When compared with the existing branch-and-bound method, the method was effective in reducing the burden on the decision maker. (C) 1994 John Wiley & Sons, Inc. C1 USAF ACAD, DEPT MATH SCI, COLORADO SPRINGS, CO 80840 USA. RP SHIN, WS (reprint author), SUNGKYUNKWAN UNIV, DEPT IND ENGN, 53 3-KA MYUNGRYUN DONG, SEOUL 110745, SOUTH KOREA. NR 16 TC 6 Z9 6 U1 1 U2 1 PU JOHN WILEY & SONS INC PI NEW YORK PA 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0894-069X J9 NAV RES LOG JI Nav. Res. Logist. PD APR PY 1994 VL 41 IS 3 BP 423 EP 434 DI 10.1002/1520-6750(199404)41:3<423::AID-NAV3220410308>3.0.CO;2-E PG 12 WC Operations Research & Management Science SC Operations Research & Management Science GA NA359 UT WOS:A1994NA35900007 ER PT J AU SANDERS, RD MATHEWS, TA AF SANDERS, RD MATHEWS, TA TI HYPERGRAPHIA AND SECONDARY MANIA IN TEMPORAL-LOBE EPILEPSY - CASE-REPORTS AND LITERATURE-REVIEW SO NEUROPSYCHIATRY NEUROPSYCHOLOGY AND BEHAVIORAL NEUROLOGY LA English DT Note DE INTERICTAL BEHAVIOR SYNDROME; TEMPORAL LOBE EPILEPSY; HYPERGRAPHIA ID INTERICTAL BEHAVIOR; PERSONALITY; SEIZURES; ILLNESS AB Hypergraphia is one symptom of the controversial interictal behavior syndrome of temporal lobe epilepsy. Two cases are described of hypergraphic patients with temporal lobe epilepsy and intermittent mania. A review of all known published cases of interictal hypergraphia in epilepsy patients shows a preponderance of nondominant foci and frequent mention of affective disturbances. The existing case reports support the notion that interictal hypergraphia can be seen in association with secondary (organic) mania as well as depression. Comprehensive psychiatric evaluations of patients showing these interictal behavior changes will be necessary to demonstrate that they truly comprise a distinct neuropsychiatric syndrome. C1 WRIGHT STATE UNIV,SCH MED,DEPT NEUROL,DAYTON,OH 45435. RP SANDERS, RD (reprint author), MINOT AFB REG HOSP,MENTAL HLTH SERV,10 MISSILE AVE,MINOT AFB,ND 58705, USA. NR 33 TC 5 Z9 5 U1 0 U2 1 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 0894-878X J9 NEUROPSY NEUROPSY BE JI Neuropsychiatr. Neuropsychol. Behav. Neurol. PD APR PY 1994 VL 7 IS 2 BP 114 EP 117 PG 4 WC Clinical Neurology; Psychiatry; Psychology SC Neurosciences & Neurology; Psychiatry; Psychology GA NJ804 UT WOS:A1994NJ80400006 ER PT J AU AUCHUS, RJ FUQUA, SAW AF AUCHUS, RJ FUQUA, SAW TI PROGNOSTIC FACTORS AND VARIANT ESTROGEN-RECEPTOR RNAS IN CLINICAL BREAST-CANCER SO NUCLEAR MEDICINE AND BIOLOGY LA English DT Article; Proceedings Paper CT Euro-Immunoanalyse 93 CY FEB 03-05, 1993 CL LYON, FRANCE ID MEDICAL PROGRESS; TUMORS; IDENTIFICATION; TAMOXIFEN C1 UNIV TEXAS,HLTH SCI CTR,DEPT MED ONCOL,SAN ANTONIO,TX 78284. WILFORD HALL USAF MED CTR,DEPT ENDOCRINOL,LACKLAND AFB,TX 78236. FU NCI NIH HHS [CA 30195, CA 54174, CA 52351] NR 15 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 0883-2897 J9 NUCL MED BIOL JI Nucl. Med. Biol. PD APR PY 1994 VL 21 IS 3 BP 449 EP 454 DI 10.1016/0969-8051(94)90068-X PG 6 WC Radiology, Nuclear Medicine & Medical Imaging SC Radiology, Nuclear Medicine & Medical Imaging GA ND524 UT WOS:A1994ND52400018 PM 9234308 ER PT J AU FOWLER, CB HARTMAN, KS BRANNON, RB AF FOWLER, CB HARTMAN, KS BRANNON, RB TI FIBROMATOSIS OF THE ORAL AND PARAORAL REGION SO ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTOLOGY LA English DT Article ID AGGRESSIVE FIBROMATOSIS; INFANTILE MYOFIBROMATOSIS; DESMOID TUMORS; RADIATION-THERAPY; HEAD; NECK; CHEMOTHERAPY; CHILDREN; CAVITY; TONGUE AB The fibromatoses represent a group of infiltrating fibrous proliferations that exhibit a clinical behavior and biologic Potential intermediate between benign fibrous lesions and fibrosarcoma. The head and neck region is a common site of involvement for these lesions especially in children and young adults. However, the oral structures per se are not often the site of origin. In this study of 31 cases of fibromatosis that involved the oral and paraoral region, patient ages ranged from birth to 51 years with 74% appearing in the first decade. The most common clinical presentation was a painless mass that involved the cheek, tongue, or submandibular region. Erosion of bone was a frequent finding in lesions arising in soft tissue contiguous with the jaws. After surgical excision, lesions recurred in five patients for a recurrence rate of 23.8%. One lesion recurred twice. The average interval from initial treatment to recurrence was 7.6 months, The recurrence rate observed in this series is significantly lower than that generally reported for fibromatosis of the head and neck (50% to 70%). This is most likely due to the exclusion in this investigation of lesions in the supraclavicular region. C1 USAF, INST PATHOL, CTR ADV PATHOL, WASHINGTON, DC 20330 USA. USAF, INST PATHOL, DEPT ORAL PATHOL, WASHINGTON, DC 20330 USA. RP FOWLER, CB (reprint author), WILFORD HALL USAF MED CTR, DEPT ORAL PATHOL, DSM, 2200 BERGQUIST DR, SUITE 1, LACKLAND AFB, TX 78236 USA. NR 68 TC 38 Z9 40 U1 0 U2 0 PU MOSBY-ELSEVIER PI NEW YORK PA 360 PARK AVENUE SOUTH, NEW YORK, NY 10010-1710 USA SN 1079-2104 EI 1528-395X J9 ORAL SURG ORAL MED O JI Oral Surg. Oral Med. Oral Pathol. Oral Radiol. Endod. PD APR PY 1994 VL 77 IS 4 BP 373 EP 386 DI 10.1016/0030-4220(94)90200-3 PG 14 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA NG652 UT WOS:A1994NG65200015 PM 8015802 ER PT J AU ASCHER, DP WAECKER, NJ OTTOLINI, MA RASZKA, WV MORIARTY, R ROBB, ML AF ASCHER, DP WAECKER, NJ OTTOLINI, MA RASZKA, WV MORIARTY, R ROBB, ML TI SIGNIFICANCE OF THE IMMUNE-COMPLEX DISSOCIATED (ICD) P24 ANTIGEN IN PEDIATRIC HIV-INFECTION SO PEDIATRIC RESEARCH LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR, DEPT PEDIAT, LACKLAND AFB, TX 78236 USA. UNIFORMED SERV UNIV HLTH SCI, BETHESDA, MD 20814 USA. USN HOSP, BETHESDA, MD 20814 USA. NATL NAVAL MED CTR, BETHESDA, MD 20814 USA. WALTER REED ARMY INST RES, WASHINGTON, DC 20307 USA. 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 0031-3998 J9 PEDIATR RES JI Pediatr. Res. PD APR PY 1994 VL 35 IS 4 BP A173 EP A173 PN 2 PG 1 WC Pediatrics SC Pediatrics GA NG779 UT WOS:A1994NG77901022 ER PT J AU BERTAGNOLI, MW HOWELL, RG SCHWERTNER, HA JACKSON, CB SEIDNER, SR AF BERTAGNOLI, MW HOWELL, RG SCHWERTNER, HA JACKSON, CB SEIDNER, SR TI THE EFFECTS OF FASTING AND TROPHIC FEEDS ON THE PRETERM BABOON GASTROINTESTINAL-TRACT SO PEDIATRIC RESEARCH LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. SW FDN BIOMED RES,SAN ANTONIO,TX 78284. 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 0031-3998 J9 PEDIATR RES JI Pediatr. Res. PD APR PY 1994 VL 35 IS 4 BP A308 EP A308 PN 2 PG 1 WC Pediatrics SC Pediatrics GA NG779 UT WOS:A1994NG77901827 ER PT J AU DICKEY, LA CHEU, HW YODER, BA NULL, DM AF DICKEY, LA CHEU, HW YODER, BA NULL, DM TI NEONATES REQUIRING CARDIOPULMONARY-RESUSCITATION BEFORE EXTRACORPOREAL MEMBRANE-OXYGENATION - PROGNOSTIC FACTORS ASSOCIATED WITH SURVIVAL AND NEUROLOGIC OUTCOME SO PEDIATRIC 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 WILLIAMS & WILKINS PI BALTIMORE PA 351 WEST CAMDEN ST, BALTIMORE, MD 21201-2436 SN 0031-3998 J9 PEDIATR RES JI Pediatr. Res. PD APR PY 1994 VL 35 IS 4 BP A50 EP A50 PN 2 PG 1 WC Pediatrics SC Pediatrics GA NG779 UT WOS:A1994NG77900285 ER PT J AU GREENBERG, DN HOWELL, RG HENSLEY, DM JACKSON, CB GRESS, M DELVECCHIO, VG AF GREENBERG, DN HOWELL, RG HENSLEY, DM JACKSON, CB GRESS, M DELVECCHIO, VG TI HYPEROXIA AND UREAPLASMA-UREALYTICUM INFECTION IN PREMATURE RABBITS SO PEDIATRIC RESEARCH LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,DEPT PEDIAT,LACKLAND AFB,TX 78236. WILFORD HALL USAF MED CTR,CLIN INVEST DIRECTORATE,LACKLAND AFB,TX 78236. UNIV SCRANTON,DEPT BIOL,SCRANTON,PA 18510. 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 0031-3998 J9 PEDIATR RES JI Pediatr. Res. PD APR PY 1994 VL 35 IS 4 BP A297 EP A297 PN 2 PG 1 WC Pediatrics SC Pediatrics GA NG779 UT WOS:A1994NG77901762 ER PT J AU HOLCOMB, RG HAWS, R BROWN, A KENNEDY, B ZIEGLER, MG BUTLER, TJ AF HOLCOMB, RG HAWS, R BROWN, A KENNEDY, B ZIEGLER, MG BUTLER, TJ TI NOREPINEPHRINE CLEARANCE WITH CONTINUOUS ARTERIOVENOUS HEMOFILTRATION IN AN EXTRACORPOREAL MEMBRANE-OXYGENATION CIRCUIT SO PEDIATRIC RESEARCH LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,DEPT PEDIAT,LACKLAND AFB,TX 78236. UNIV CALIF SAN DIEGO,MED CTR,SAN DIEGO,CA 92103. 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 0031-3998 J9 PEDIATR RES JI Pediatr. Res. PD APR PY 1994 VL 35 IS 4 BP A366 EP A366 PN 2 PG 1 WC Pediatrics SC Pediatrics GA NG779 UT WOS:A1994NG77902176 ER PT J AU HOWELL, RG BERTAGNOLI, MW SEIDNER, SR AF HOWELL, RG BERTAGNOLI, MW SEIDNER, SR TI INTESTINAL GROWTH DURING THE 3RD TRIMESTER IN FETAL BABOONS SO PEDIATRIC RESEARCH LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. UNIV TEXAS,HLTH SCI CTR,DEPT PEDIAT,SAN ANTONIO,TX 78284. SW FDN BIOMED RES,SAN ANTONIO,TX 78284. 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 0031-3998 J9 PEDIATR RES JI Pediatr. Res. PD APR PY 1994 VL 35 IS 4 BP A313 EP A313 PN 2 PG 1 WC Pediatrics SC Pediatrics GA NG779 UT WOS:A1994NG77901859 ER PT J AU KIRSCH, EA YODER, BA DELAVINA, LY AF KIRSCH, EA YODER, BA DELAVINA, LY TI A COMPARISON OF PREGNANCY COMPLICATIONS AND OUTCOME IN ACTIVE-DUTY WOMEN VERSUS MILITARY DEPENDENT WOMEN SO PEDIATRIC RESEARCH LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,SAN ANTONIO,TX. 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 0031-3998 J9 PEDIATR RES JI Pediatr. Res. PD APR PY 1994 VL 35 IS 4 BP A276 EP A276 PN 2 PG 1 WC Pediatrics SC Pediatrics GA NG779 UT WOS:A1994NG77901637 ER PT J AU SCHELONKA, RL YODER, BA DEJARDINS, SE HALL, RB BUTLER, TJ AF SCHELONKA, RL YODER, BA DEJARDINS, SE HALL, RB BUTLER, TJ TI WHITE BLOOD-CELL COUNT AND NEUTROPHIL INDEXES IN HEALTHY, FULL-TERM NEWBORNS - REFERENCE VALUES REDEFINED SO PEDIATRIC RESEARCH LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,DEPT PEDIAT,SAN ANTONIO,TX. 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 0031-3998 J9 PEDIATR RES JI Pediatr. Res. PD APR PY 1994 VL 35 IS 4 BP A303 EP A303 PN 2 PG 1 WC Pediatrics SC Pediatrics GA NG779 UT WOS:A1994NG77901799 ER PT J AU SCHELONKA, RL YODER, BA HALL, RB TRIPPETT, T AF SCHELONKA, RL YODER, BA HALL, RB TRIPPETT, T TI INTER-READER VARIABILITY OF THE MANUAL DIFFERENTIAL LEUKOCYTE COUNT IN NEWBORNS SO PEDIATRIC RESEARCH LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,DEPT PEDIAT,LACKLAND AFB,TX 78236. NR 0 TC 1 Z9 1 U1 0 U2 0 PU WILLIAMS & WILKINS PI BALTIMORE PA 351 WEST CAMDEN ST, BALTIMORE, MD 21201-2436 SN 0031-3998 J9 PEDIATR RES JI Pediatr. Res. PD APR PY 1994 VL 35 IS 4 BP A169 EP A169 PN 2 PG 1 WC Pediatrics SC Pediatrics GA NG779 UT WOS:A1994NG77901001 ER PT J AU STRIBLEY, RF YODER, BA AF STRIBLEY, RF YODER, BA TI UMBILICAL-CORD BLOOD-GASES IN TERM INFANTS BORN TO MOTHERS WITH ACCESS TO FREE CARE SO PEDIATRIC 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 WILLIAMS & WILKINS PI BALTIMORE PA 351 WEST CAMDEN ST, BALTIMORE, MD 21201-2436 SN 0031-3998 J9 PEDIATR RES JI Pediatr. Res. PD APR PY 1994 VL 35 IS 4 BP A288 EP A288 PN 2 PG 1 WC Pediatrics SC Pediatrics GA NG779 UT WOS:A1994NG77901710 ER PT J AU WALSH, WF HENSLEY, D GREENBERG, D AF WALSH, WF HENSLEY, D GREENBERG, D TI EFFECT OF SURFACTANT ON UREAPLASMA-UREALYTICUM GROWTH SO PEDIATRIC RESEARCH LA English DT Meeting Abstract C1 VANDERBILT UNIV,MED CTR,DEPT PEDIAT,NASHVILLE,TN 37240. WILFORD HALL USAF MED CTR,DEPT PEDIAT,SAN ANTONIO,TX. NR 0 TC 1 Z9 1 U1 0 U2 0 PU WILLIAMS & WILKINS PI BALTIMORE PA 351 WEST CAMDEN ST, BALTIMORE, MD 21201-2436 SN 0031-3998 J9 PEDIATR RES JI Pediatr. Res. PD APR PY 1994 VL 35 IS 4 BP A305 EP A305 PN 2 PG 1 WC Pediatrics SC Pediatrics GA NG779 UT WOS:A1994NG77901812 ER PT J AU YODER, BA AF YODER, BA TI CHRONIC LUNG-DISEASE - PREDICTION WITH SIMPLIFIED SCORING SYSTEM IN 1ST WEEK OF LIFE SO PEDIATRIC 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 WILLIAMS & WILKINS PI BALTIMORE PA 351 WEST CAMDEN ST, BALTIMORE, MD 21201-2436 SN 0031-3998 J9 PEDIATR RES JI Pediatr. Res. PD APR PY 1994 VL 35 IS 4 BP A358 EP A358 PN 2 PG 1 WC Pediatrics SC Pediatrics GA NG779 UT WOS:A1994NG77902128 ER PT J AU YODER, BA AF YODER, BA TI EPIDEMIOLOGY OF NEONATAL CHRONIC LUNG-DISEASE IN THE 1990S SO PEDIATRIC 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 WILLIAMS & WILKINS PI BALTIMORE PA 351 WEST CAMDEN ST, BALTIMORE, MD 21201-2436 SN 0031-3998 J9 PEDIATR RES JI Pediatr. Res. PD APR PY 1994 VL 35 IS 4 BP A292 EP A292 PN 2 PG 1 WC Pediatrics SC Pediatrics GA NG779 UT WOS:A1994NG77901733 ER PT J AU QUOCK, RM KLAUENBERG, BJ HURT, WD MERRITT, JH AF QUOCK, RM KLAUENBERG, BJ HURT, WD MERRITT, JH TI INFLUENCE OF MICROWAVE EXPOSURE ON CHLORDIAZEPOXIDE EFFECTS IN THE MOUSE STAIRCASE TEST SO PHARMACOLOGY BIOCHEMISTRY AND BEHAVIOR LA English DT Article DE MICROWAVE EXPOSURE; CHLORDIAZEPOXIDE; MOUSE STAIRCASE TEST ID NITROUS-OXIDE; DIAZEPAM; MICE; BEHAVIOR; RAT AB To ascertain whether behavioral effects of benzodiazepines are altered by exposure to microwave radiation, we compared the performance of male, Swiss CD1 mice in the staircase test 30 min after pretreatment with chlordiazepoxide (8, 16, and 32 mg/kg, IP) and immediately following a 5-min exposure to microwave radiation (4, 12, and 36 W/kg, continuous wave, 1.8 or 4.7 GHz). In this paradigm, chlordiazepoxide reduction in the number of rears (NR) and number of steps ascended (NSA) is postulated to reflect anxiolytic and sedative drug effects, respectively. In sham-exposed mice, increasing doses of chlordiazepoxide increased NSA without affecting NR, increased NSA and decreased NR, then decreased both NSA and NR. Microwave exposure generally did not alter NSA or NR in mice pretreated with lower doses of chlordiazepoxide. However, in mice pretreated with 32 mg/kg chlordiazepoxide, exposure to 36 W/kg microwave radiation significantly reversed the reductions in NSA and NR at 4.7 GHz but not at 1.8 GHz. These findings indicate that exposure to microwave radiation can selectively alter effects of chlordiazepoxide in this psychopharmacological paradigm. C1 ARMSTRONG LAB,DIV RADIOFREQUENCY RADIAT,BROOKS AFB,TX 78235. NR 20 TC 4 Z9 4 U1 0 U2 0 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 APR PY 1994 VL 47 IS 4 BP 845 EP 849 DI 10.1016/0091-3057(94)90286-0 PG 5 WC Behavioral Sciences; Neurosciences; Pharmacology & Pharmacy SC Behavioral Sciences; Neurosciences & Neurology; Pharmacology & Pharmacy GA NB496 UT WOS:A1994NB49600011 PM 8029254 ER PT J AU SMITH, DK SNEARLY, WN AF SMITH, DK SNEARLY, WN TI LUNOTRIQUETRAL INTEROSSEOUS LIGAMENT OF THE WRIST - MR APPEARANCES IN ASYMPTOMATIC VOLUNTEERS AND ARTHROGRAPHICALLY NORMAL WRISTS SO RADIOLOGY LA English DT Article DE LIGAMENTS, INJURIES; LIGAMENTS, MR; WRIST, MR ID NORMAL ANATOMY; HAND; PAIN AB PURPOSE: To determine whether the carpal lunotriquetral ligament (LTL) can be consistently seen and to establish the normal range of LTL appearances at magnetic resonance. (MR) imaging as a basis for comparison with LTL tears. MATERIALS AND METHODS: MR imaging was used to identify and characterize the LTL in 75 wrists with normal LTLs (54 in 27 asymptomatic volunteers, 21 in patients with normal arthrograms). RESULTS: The LTL was identified in all wrists and was linear in 63% and delta-shaped in 35%. The LTL had homogeneous low signal intensity in 73% and linear intermediate signal intensity traversing all or part of the LTL in 25%. Fluid signal intensity traversed the LTL in only one wrist. MR appearance of the osseous insertion sites varied. Distribution of hyaline cartilage signal was related to location within the LTL. CONCLUSION: The LTL can be consistently identified at MR imaging, but its appearance varies, which must be appreciated when evaluating wrists with suspected LTL tears. RP SMITH, DK (reprint author), WILFORD HALL USAF MED CTR,DEPT RADIOL PSRD,2200 BERQUIST DR STE 1,LACKLAND AFB,TX 78236, USA. NR 22 TC 45 Z9 45 U1 0 U2 1 PU RADIOLOGICAL SOC NORTH AMER PI EASTON PA 20TH AND NORTHAMPTON STS, EASTON, PA 18042 SN 0033-8419 J9 RADIOLOGY JI Radiology PD APR PY 1994 VL 191 IS 1 BP 199 EP 202 PG 4 WC Radiology, Nuclear Medicine & Medical Imaging SC Radiology, Nuclear Medicine & Medical Imaging GA NB685 UT WOS:A1994NB68500038 PM 8134570 ER PT J AU MALAKONDAIAH, G KIM, YW NICHOLAS, T AF MALAKONDAIAH, G KIM, YW NICHOLAS, T TI SOME OBSERVATIONS ON THE AMBIENT-TEMPERATURE DEFORMATION-BEHAVIOR OF FULLY LAMELLAR TI-46AL-2NB-2CR ALLOY SO SCRIPTA METALLURGICA ET MATERIALIA LA English DT Article C1 UES,DIV MAT RES,DAYTON,OH 45432. RP MALAKONDAIAH, G (reprint author), WRIGHT LAB,WL,MLLN,WRIGHT PATTERSON AFB,OH 45433, USA. NR 6 TC 7 Z9 7 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0956-716X J9 SCRIPTA METALL MATER JI Scr. Metall. Materialia PD APR 1 PY 1994 VL 30 IS 7 BP 939 EP 944 DI 10.1016/0956-716X(94)90419-7 PG 6 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA MU741 UT WOS:A1994MU74100025 ER PT J AU SEMIATIN, SL SOPER, JC SUKONNIK, IM AF SEMIATIN, SL SOPER, JC SUKONNIK, IM TI GRAIN-GROWTH IN A CONVENTIONAL TITANIUM-ALLOY DURING RAPID, CONTINUOUS HEAT-TREATMENT SO SCRIPTA METALLURGICA ET MATERIALIA LA English DT Article C1 WRIGHT STATE UNIV,DAYTON,OH 45435. TEXAS INSTRUMENTS INC,ATTLEBORO,MA 02703. RP SEMIATIN, SL (reprint author), WRIGHT LAB,MAT DIRECTORATE,WL,MLLN,WRIGHT PATTERSON AFB,OH 45433, USA. RI SEMIATIN, SHELDON/E-7264-2017 NR 16 TC 23 Z9 24 U1 2 U2 6 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0956-716X J9 SCRIPTA METALL MATER JI Scr. Metall. Materialia PD APR 1 PY 1994 VL 30 IS 7 BP 951 EP 955 DI 10.1016/0956-716X(94)90421-9 PG 5 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA MU741 UT WOS:A1994MU74100027 ER PT J AU KHOT, NS BERKE, L AF KHOT, NS BERKE, L TI A METHOD FOR SYSTEM-IDENTIFICATION USING THE OPTIMALITY CRITERIA OPTIMIZATION APPROACH SO STRUCTURAL OPTIMIZATION LA English DT Article AB An algorithm similar to the optimality criteria approach used in structural optimization is presented for identifying stiffnesses of structural members by using vibration test data. A set of equivalent static inertia forces are obtained from the vibration analysis using d'Alembert's principle and are used to solve the multiple displacement constraint problem. The displacement constraint values are specified based on the measured experimental modal displacement data at critical locations. The algorithm is used to find the changes needed in the stiffnesses of the elements and the distribution of nonstructural mass of the nominal analytical model to correlate the analytical and experimental data. The algorithm alternates between the vibration analysis and static analysis to find the equivalent load vector and modify the stiffnesses. The identified stiffness properties of the structural elements can be used to control and study the dynamic response of the structure. RP KHOT, NS (reprint author), WRIGHT LAB,FLIGHT DYNAM DIRECTORATE,FIBRA,DIV STRUCT,WRIGHT PATTERSON AFB,OH 45433, USA. NR 0 TC 2 Z9 2 U1 0 U2 0 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0934-4373 J9 STRUCT OPTIMIZATION JI Struct. Optim. PD APR PY 1994 VL 7 IS 3 BP 170 EP 175 DI 10.1007/BF01742462 PG 6 WC Computer Science, Interdisciplinary Applications; Engineering, Multidisciplinary; Mechanics SC Computer Science; Engineering; Mechanics GA NL131 UT WOS:A1994NL13100003 ER PT J AU DAVIS, RW MOORE, EF CHEN, LD ROQUEMORE, WM VILIMPOC, V GOSS, LP AF DAVIS, RW MOORE, EF CHEN, LD ROQUEMORE, WM VILIMPOC, V GOSS, LP TI A NUMERICAL EXPERIMENTAL-STUDY OF THE DYNAMIC STRUCTURE OF A BUOYANT JET DIFFUSION FLAME SO THEORETICAL AND COMPUTATIONAL FLUID DYNAMICS LA English DT Article ID VISUALIZATION AB An overview of a joint numerical/experimental investigation of the dynamic structure of a low-speed buoyant jet diffusion flame is presented. The dynamic interactions between the flame surface and the surrounding fluid mechanical structures are studied by means of a direct numerical simulation closely coordinated with experiments. The numerical simulation employs the full compressible axisymmetric Navier-Stokes equations coupled with a flame sheet model. Counterrotating vortex structures both internal and external to the flame surface are seen to move upward along with flame sheet bulges. These buoyancy-driven dynamic features compare well with those observed experimentally by means of phase-locked flow visualizations over entire flame-flickering cycles. The flicker frequencies measured both computationally and experimentally also compare well. Other aspects of this investigation which are discussed include sudden jumps in flicker frequency with increasing coflow velocity and the utilization of background pressure changes to simulate gravitational force variations experimentally. C1 UNIV IOWA,DEPT MECH ENGN,IOWA CITY,IA 52242. WRIGHT RES & DEV CTR,AERO PROPULS & POWER LAB,WRIGHT PATTERSON AFB,OH 45433. SYST RES LABS INC,DIV ARVIN CALSPAN,DAYTON,OH 45440. RP DAVIS, RW (reprint author), NATL INST STAND & TECHNOL,CHEM SCI & TECHNOL LAB,GAITHERSBURG,MD 20899, USA. NR 24 TC 16 Z9 16 U1 0 U2 4 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0935-4964 J9 THEOR COMP FLUID DYN JI Theor. Comput. Fluid Dyn. PD APR PY 1994 VL 6 IS 2-3 BP 113 EP 123 DI 10.1007/BF00312344 PG 11 WC Mechanics; Physics, Fluids & Plasmas SC Mechanics; Physics GA NQ082 UT WOS:A1994NQ08200004 ER PT J AU CENTERS, PW AF CENTERS, PW TI EFFECT OF POLYDIMETHYLSILOXANE CONCENTRATION ON ESTER FOAMING TENDENCY SO TRIBOLOGY TRANSACTIONS LA English DT Article; Proceedings Paper CT 48th Annual Meeting of the Society-of-Tribologists-and-Lubrication-Engineers CY MAY 17-20, 1993 CL CALGARY, CANADA SP SOC TRIBOLOGISTS & LUBRICAT ENGINEERS DE FOAMING; ESTERS; POLYDIMETHYLSILOXANE; LUBRICANTS AB A recently formulated hypothesis relates the viscosity of polydimethylsiloxane (PDMS) additives to neutral, profoamant, or antifoamant performance in esters. At ten parts-per-million of PDMS addition, very low viscosity PDMS additives are hypothesized as neutral or ineffectual, due to solubility in the ester. Intermediate viscosity PDMS additives are profoamant due to increased surface activity attributed to more limited solubility of the partially miscible PDMS in esters, and Lewis acid-base interaction of the siloxane-ester couple. High viscosity dispersed particulate polydimethylsiloxanes are antifoamant, inducing bubble collapse hy a Griffith flaw mechanism. The foaming tendencies of an ester are related here to varying concentrations of PDMS of intermediate viscosities, i.e., 500, 1 000, and 5000 mm2s-1 (cSt), which are similarly neutral, profoamant, and antifoamant as concentration is increased. The hypothesis proposed is supported by the observatiom reported and provides a basis for a more complete understanding of observed foaming behavior. RP CENTERS, PW (reprint author), WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433, USA. NR 16 TC 3 Z9 3 U1 0 U2 1 PU SOC TRIBOLOGISTS & LUBRICATION ENGINEERS PI PARK RIDGE PA 838 BUSSE HIGHWAY, PARK RIDGE, IL 60068 SN 0569-8197 J9 TRIBOL T JI Tribol. Trans. PD APR PY 1994 VL 37 IS 2 BP 311 EP 314 DI 10.1080/10402009408983298 PG 4 WC Engineering, Mechanical SC Engineering GA NE950 UT WOS:A1994NE95000013 ER PT J AU RAKOWSKY, MH KUHN, WK LAUDERDALE, WJ HALLIBURTON, LE EDWARDS, GJ SCRIPSICK, MP SCHUNEMANN, PG POLLAK, TM OHMER, MC HOPKINS, FK AF RAKOWSKY, MH KUHN, WK LAUDERDALE, WJ HALLIBURTON, LE EDWARDS, GJ SCRIPSICK, MP SCHUNEMANN, PG POLLAK, TM OHMER, MC HOPKINS, FK TI ELECTRON-PARAMAGNETIC-RESONANCE STUDY OF A NATIVE ACCEPTOR IN AS-GROWN ZNGEP2 SO APPLIED PHYSICS LETTERS LA English DT Article AB Electron paramagnetic resonance (EPR) has been used to investigate an acceptor in as-grown single crystals of ZnGeP2. The spectra are characterized by equally spaced triplets with 1:2:1 intensity ratios representing hyperfine interactions (varying from 35 to 55 G in magnitude) with two equivalent phosphorous nuclei. Their angular dependence shows that there are four crystallographically equivalent orientations of the defect. The principal values of the g matrix are 2.002, 2.021, and 2.074 and the corresponding principal axes, at one of the four sites, are the [011], [100], and [01 1] directions, respectively. Two possible models are suggested for this acceptor: Either a zinc vacancy (V(Zn)) or a zinc ion on a germanium site (Zn(Ge)). It also is suggested that the acceptor responsible for the EPR signal is the same acceptor, namely AL1, that gives rise to a dominant near-infrared absorption band. C1 W VIRGINIA UNIV,DEPT PHYS,MORGANTOWN,WV 26506. LOCKHEED SANDERS,NASHUA,NH 03061. WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. RP RAKOWSKY, MH (reprint author), USAF ACAD,FJ SEILER RES LAB,COLORADO SPRINGS,CO 80840, USA. NR 13 TC 42 Z9 42 U1 3 U2 6 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 MAR 28 PY 1994 VL 64 IS 13 BP 1615 EP 1617 DI 10.1063/1.111855 PG 3 WC Physics, Applied SC Physics GA ND583 UT WOS:A1994ND58300006 ER PT J AU HAALAND, P IBRANI, S JIANG, H AF HAALAND, P IBRANI, S JIANG, H TI FLUID-DYNAMICS AND DUST GROWTH IN PLASMA-ENHANCED CHEMICAL-VAPOR-DEPOSITION SO APPLIED PHYSICS LETTERS LA English DT Article ID POLYTHIOPHENE FILMS; PARTICLE AB A paradox arises with the observation of large dust particles in a low-pressure plasma enhanced chemical vapor deposition reactor. Neutral drag forces in an axisymmetric flowing afterglow reactor permit micrometer sized dust grains to form by trapping them for long times in regions with high concentrations of film precursors. A summary of the relevant mechanical and electrostatic forces on dust grains shows that collisions with neutral gas reconcile the growth rate, residence times, and relatively large diameters of the observed dust particles. C1 ANALATOM INC,SUNNYVALE,CA 94089. WRIGHT LAB,ELECTROMAGNET MAT GRP,WRIGHT PATTERSON AFB,OH 45433. RP HAALAND, P (reprint author), WRIGHT LAB,PLASMA PHYS G RP,WL POOC3,WRIGHT PATTERSON AFB,OH 45433, USA. NR 14 TC 14 Z9 14 U1 1 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 MAR 28 PY 1994 VL 64 IS 13 BP 1629 EP 1631 DI 10.1063/1.111860 PG 3 WC Physics, Applied SC Physics GA ND583 UT WOS:A1994ND58300011 ER PT J AU BATTIS, JC AF BATTIS, JC TI THE EFFECTS OF AIRCRAFT (B-52) OVERFLIGHTS ON ANCIENT STRUCTURES SO JOURNAL OF SOUND AND VIBRATION LA English DT Article RP BATTIS, JC (reprint author), USAF,MAT COMMAND,PHILLIPS LAB,GEOPHYS DIRECTORATE,DIV EARTH SCI,BEDFORD,MA 01731, USA. NR 22 TC 0 Z9 0 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 MAR 24 PY 1994 VL 171 IS 2 BP 267 EP 283 DI 10.1006/jsvi.1994.1118 PG 17 WC Acoustics; Engineering, Mechanical; Mechanics SC Acoustics; Engineering; Mechanics GA NC376 UT WOS:A1994NC37600009 ER PT J AU WIESER, ES LUONG, AU RYAN, KL FREI, MR BERGER, RE JAUCHEM, JR AF WIESER, ES LUONG, AU RYAN, KL FREI, MR BERGER, RE JAUCHEM, JR TI CHRONIC NITRIC-OXIDE (NO) INHIBITION - EFFECTS ON HYPOTENSION INDUCED BY 35-GHZ RADIOFREQUENCY RADIATION (RFR) EXPOSURE SO FASEB JOURNAL LA English DT Meeting Abstract C1 TRINITY UNIV,DEPT BIOL,SAN ANTONIO,TX 78212. USAF,ARMSTRONG LAB,DIV RADIO FREQUENCY RADIAT,BROOKS AFB,TX 78235. NR 0 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 MAR 18 PY 1994 VL 8 IS 5 BP A593 EP A593 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA ND197 UT WOS:A1994ND19700045 ER PT J AU GULLEY, ML EAGAN, PA QUINTANILLAMARTINEZ, L PICADO, AL SMIR, BN CHILDS, C DUNN, CD CRAIG, FE WILLIAMS, JW BANKS, PM AF GULLEY, ML EAGAN, PA QUINTANILLAMARTINEZ, L PICADO, AL SMIR, BN CHILDS, C DUNN, CD CRAIG, FE WILLIAMS, JW BANKS, PM TI EPSTEIN-BARR-VIRUS DNA IS ABUNDANT AND MONOCLONAL IN THE REED-STERNBERG CELLS OF HODGKINS-DISEASE - ASSOCIATION WITH MIXED CELLULARITY SUBTYPE AND HISPANIC AMERICAN ETHNICITY SO BLOOD LA English DT Article ID POLYMERASE CHAIN-REACTION; INSITU HYBRIDIZATION; VIRAL GENOMES; SAN-ANTONIO; EBV; LYMPHOMA; EXPRESSION; GENE; SIBLINGS; TISSUE C1 UNIV TEXAS,HLTH SCI CTR,DEPT MED,SAN ANTONIO,TX 78284. AUDIE L MURPHY MEM VET ADM MED CTR,SAN ANTONIO,TX. INST NACL NUTR,DEPT PATOL,THALPAN,DF,MEXICO. HOSP SAN JUAN DIOS,DEPT PATOL,SAN JOSE,COSTA RICA. SW TEXAS METHODIST HOSP,SAN ANTONIO,TX. WILFORD HALL USAF MED CTR,SAN ANTONIO,TX 78236. RP GULLEY, ML (reprint author), UNIV TEXAS,HLTH SCI CTR,DEPT PATHOL,7703 FLOYD CURL DR,SAN ANTONIO,TX 78284, USA. FU AHRQ HHS [U01-HS07397]; NCI NIH HHS [K08-CA01615] NR 51 TC 104 Z9 105 U1 0 U2 0 PU W B SAUNDERS CO PI PHILADELPHIA PA INDEPENDENCE SQUARE WEST CURTIS CENTER, STE 300, PHILADELPHIA, PA 19106-3399 SN 0006-4971 J9 BLOOD JI Blood PD MAR 15 PY 1994 VL 83 IS 6 BP 1595 EP 1602 PG 8 WC Hematology SC Hematology GA NA491 UT WOS:A1994NA49100021 PM 8123850 ER PT J AU KURTZ, RD FARRIS, TN SUN, CT AF KURTZ, RD FARRIS, TN SUN, CT TI THE NUMERICAL-SOLUTION OF CAUCHY SINGULAR INTEGRAL-EQUATIONS WITH APPLICATION TO FRACTURE SO INTERNATIONAL JOURNAL OF FRACTURE LA English DT Article AB The present study investigates a numerical algorithm for solving systems of Cauchy singular integral equations of the second kind such as those which often occur in the analysis of interface crack problems. The algorithm takes advantage of many standard subroutines for performing numerical integrations and can be easily applied to equations which are defined over different intervals of the dependent variable. The solution technique is illustrated by analyzing two homogeneous center cracked panels: one loaded in tension and the other loaded in shear and bending. In the second example problem, the presence of crack face friction strongly couples the underlying singular integral equations. The numerical results are compared to closed form elasticity solutions and are shown to be extremely accurate. In addition, the study also illustrates the feasibility of using various assumed forms of the undetermined functions. By assuming these slightly altered forms, many rather complex problems are either solved directly or reduced in complexity. C1 PURDUE UNIV,SCH AERONAUT & ASTRONAUT,W LAFAYETTE,IN 47907. RP KURTZ, RD (reprint author), USAF ACAD,DEPT ENGN MECH,COLORADO SPRINGS,CO 80840, USA. NR 8 TC 15 Z9 15 U1 0 U2 2 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0376-9429 J9 INT J FRACTURE JI Int. J. Fract. PD MAR 15 PY 1994 VL 66 IS 2 BP 139 EP 154 DI 10.1007/BF00020079 PG 16 WC Materials Science, Multidisciplinary; Mechanics SC Materials Science; Mechanics GA NX737 UT WOS:A1994NX73700003 ER PT J AU WETZE, PA PIERCE, BJ GERI, GA FELBER, AA AF WETZE, PA PIERCE, BJ GERI, GA FELBER, AA TI EFFECTS OF ACCOMMODATION AND VERGENCE ON SIZE-DISTANCE PERCEPTION SO INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE LA English DT Meeting Abstract C1 UNIV PAYTON,RES INST,HIGLEY,AZ 85236. USAF,ARMSTRONG LAB,MESA,AZ 85206. 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 0146-0404 J9 INVEST OPHTH VIS SCI JI Invest. Ophthalmol. Vis. Sci. PD MAR 15 PY 1994 VL 35 IS 4 BP 1281 EP 1281 PG 1 WC Ophthalmology SC Ophthalmology GA MZ585 UT WOS:A1994MZ58500132 ER PT J AU SMITH, RE CARLSON, DW AF SMITH, RE CARLSON, DW TI INTRAVENOUS PYELOGRAPHY CONTRAST-MEDIA ACUTELY LOWERS INTRAOCULAR-PRESSURE SO INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,SAN ANTONIO,TX. 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 0146-0404 J9 INVEST OPHTH VIS SCI JI Invest. Ophthalmol. Vis. Sci. PD MAR 15 PY 1994 VL 35 IS 4 BP 1387 EP 1387 PG 1 WC Ophthalmology SC Ophthalmology GA MZ585 UT WOS:A1994MZ58500616 ER PT J AU SCHUSCHEREBA, ST BOWMAN, PD LUND, DJ CROSS, ME AF SCHUSCHEREBA, ST BOWMAN, PD LUND, DJ CROSS, ME TI LONG-TERM CONSEQUENCES OF BASIC FIBROBLAST GROWTH-FACTOR (BFGF) TREATMENT ON LASER-INJURED RABBIT RETINA SO INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE LA English DT Meeting Abstract C1 USAF,MED RES DETACHMENT,WALTER REED ARMY INST RES,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 0146-0404 J9 INVEST OPHTH VIS SCI JI Invest. Ophthalmol. Vis. Sci. PD MAR 15 PY 1994 VL 35 IS 4 BP 1498 EP 1498 PG 1 WC Ophthalmology SC Ophthalmology GA MZ585 UT WOS:A1994MZ58501122 ER PT J AU STEIN, CD TOTH, CA CAIN, CP STOLARSKI, DJ NOOJIN, GD ROCKWELL, BA CHENEY, FE MCLIN, LN ROACH, WP AF STEIN, CD TOTH, CA CAIN, CP STOLARSKI, DJ NOOJIN, GD ROCKWELL, BA CHENEY, FE MCLIN, LN ROACH, WP TI RETINAL EFFECTS OF ULTRASHORT LASER-PULSES IN RHESUS-MONKEYS SO INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE LA English DT Meeting Abstract C1 ARMSTRONG LAB,BROOKS AFB,TX. DUKE UNIV,DEPT OPHTHALMOL,DURHAM,NC 27706. TASC,SAN ANTONIO,TX. RI toth, cynthia/F-5614-2011 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 0146-0404 J9 INVEST OPHTH VIS SCI JI Invest. Ophthalmol. Vis. Sci. PD MAR 15 PY 1994 VL 35 IS 4 BP 1516 EP 1516 PG 1 WC Ophthalmology SC Ophthalmology GA MZ585 UT WOS:A1994MZ58501211 ER PT J AU PASQUALE, AC TOTH, CA GRAICHEN, DF AF PASQUALE, AC TOTH, CA GRAICHEN, DF TI CLINICOPATHOLOGICAL CORRELATION OF SPONTANEOUS RETINAL-PIGMENT EPITHELIAL TEARS WITH CHOROIDAL NEOVASCULAR MEMBRANES IN AGE-RELATED MACULAR DEGENERATION SO INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,DEPT OPHTHALMOL,LACKLAND AFB,TX 78236. RI toth, cynthia/F-5614-2011 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 0146-0404 J9 INVEST OPHTH VIS SCI JI Invest. Ophthalmol. Vis. Sci. PD MAR 15 PY 1994 VL 35 IS 4 BP 1714 EP 1714 PG 1 WC Ophthalmology SC Ophthalmology GA MZ585 UT WOS:A1994MZ58502138 ER PT J AU MANNING, CA KLOESS, PM AF MANNING, CA KLOESS, PM TI TOPOGRAPHIC ANALYSIS OF PTERYGIA USING VIDEO KERATOGRAPHY SO INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE LA English DT Meeting Abstract C1 USAF,DEPT OPHTHALMOL,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 0146-0404 J9 INVEST OPHTH VIS SCI JI Invest. Ophthalmol. Vis. Sci. PD MAR 15 PY 1994 VL 35 IS 4 BP 1797 EP 1797 PG 1 WC Ophthalmology SC Ophthalmology GA MZ585 UT WOS:A1994MZ58502525 ER PT J AU BARAD, JP CARLSON, DW FLYNN, WJ PARSONS, MR AF BARAD, JP CARLSON, DW FLYNN, WJ PARSONS, MR TI VISUALLY SIGNIFICANT PIGMENT DEPOSITS ON SILICONE INTRAOCULAR LENSES SO INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,SAN ANTONIO,TX. DAVID GRANT MED CTR,VACAVILLE,CA. 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 0146-0404 J9 INVEST OPHTH VIS SCI JI Invest. Ophthalmol. Vis. Sci. PD MAR 15 PY 1994 VL 35 IS 4 BP 1858 EP 1858 PG 1 WC Ophthalmology SC Ophthalmology GA MZ585 UT WOS:A1994MZ58502791 ER PT J AU REED, JB SCALES, DK AF REED, JB SCALES, DK TI THE DIAGNOSIS AND MANAGEMENT OF TUBERCULOUS UVEITIS SO INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,DEPT OPHTHALMOL,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 0146-0404 J9 INVEST OPHTH VIS SCI JI Invest. Ophthalmol. Vis. Sci. PD MAR 15 PY 1994 VL 35 IS 4 BP 2099 EP 2099 PG 1 WC Ophthalmology SC Ophthalmology GA MZ585 UT WOS:A1994MZ58503902 ER PT J AU MITCHEL, WC JIMENEZ, J AF MITCHEL, WC JIMENEZ, J TI PHOTOCURRENT TRANSIENTS IN SEMIINSULATING GAAS, EFFECTS OF EL2 AND OTHER DEFECTS SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID HORIZONTAL BRIDGMAN GAAS; PERSISTENT PHOTOCURRENT; INFRARED-ABSORPTION; SEMIINSULATING GAAS; BULK GAAS; ENHANCED PHOTOCURRENT; RESONANCE SIGNAL; THERMAL RECOVERY; METASTABLE STATE; ANTISITE DEFECT AB Photocurrent transient effects in undoped semi-insulating gallium arsenide have elicited conflicting explanations. The photocurrent quenching, enhanced photocurrent, and persistent photocurrent effects are reviewed and new results on these effects are reported. A comparison of the photocurrent transients with optical absorption quenching along with other experiments shows that photocurrent quenching is due to the metastable transformation of the deep donor EL2 and that the enhanced and persistent photocurrent effects are due to a seperate effect that is most likely a metastable transformation of another defect. Thermal recovery experiments show that the activated state responsible for the enhanced photocurrent recovers prior to the recovery of the metastable state of EL2. Furnace annealing experiments are presented showing that the enhanced and persistent photocurrent effects are significantly reduced after anneals at 500-degrees-C, well below the annealing temperature of quenchable EL2. After reviewing existing models we suggest that the absence of a persistent photocurrent immediately after quenching is due to compensation of residual impurities by the second level of EL2. A complex defect, perhaps including EL6 as an intermediary, is proposed for the defect responsible for the charge transfer resulting in the enhanced and persistent photocurrent effects. C1 ETS INGN IND,DEPT FIS MAT CONDENSADA,E-47011 VALLADOLID,SPAIN. RP MITCHEL, WC (reprint author), WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433, USA. NR 69 TC 19 Z9 19 U1 1 U2 4 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 15 PY 1994 VL 75 IS 6 BP 3060 EP 3070 DI 10.1063/1.356154 PG 11 WC Physics, Applied SC Physics GA NB413 UT WOS:A1994NB41300050 ER PT J AU LAIR, AV OXLEY, ME AF LAIR, AV OXLEY, ME TI EXTINCTION IN FINITE-TIME OF SOLUTIONS TO NONLINEAR ABSORPTION-DIFFUSION EQUATIONS SO JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS LA English DT Article ID L1 RP LAIR, AV (reprint author), USAF,INST TECHNOL,ENC,DEPT MATH & STAT,2950 P ST,WRIGHT PATTERSON AFB,OH 45433, USA. NR 15 TC 5 Z9 8 U1 0 U2 2 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0022-247X J9 J MATH ANAL APPL JI J. Math. Anal. Appl. PD MAR 15 PY 1994 VL 182 IS 3 BP 857 EP 866 DI 10.1006/jmaa.1994.1125 PG 10 WC Mathematics, Applied; Mathematics SC Mathematics GA NK991 UT WOS:A1994NK99100021 ER PT J AU ELCI, A AF ELCI, A TI EFFECTIVE BAND HAMILTONIAN IN SEMICONDUCTOR QUANTUM-WELLS SO PHYSICAL REVIEW B LA English DT Article ID SUPERLATTICES; HETEROSTRUCTURES AB The Luttinger-Kohn canonical transformations are used to derive the effective band Hamiltonian for a quantum well. The transformations produce 8-function potentials in the effective-mass approximation. The boundary conditions on envelope functions, obtained from this effective Hamiltonian, differ from the BenDaniel-Duke ansatz. The effective Hamiltonian depends on the electronic coherence length. It also has a velocity-dependent term that is proportional to the sum of band lineup energies. RP ELCI, A (reprint author), USAF,PHILLIPS LAB,LIDA,KIRTLAND AFB,NM 87117, USA. NR 18 TC 5 Z9 5 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 MAR 15 PY 1994 VL 49 IS 11 BP 7432 EP 7442 DI 10.1103/PhysRevB.49.7432 PG 11 WC Physics, Condensed Matter SC Physics GA NC463 UT WOS:A1994NC46300036 ER PT J AU DEHART, MM LAUERMAN, WC CONELY, AH ROETTGER, RH WEST, JL CAIN, JE AF DEHART, MM LAUERMAN, WC CONELY, AH ROETTGER, RH WEST, JL CAIN, JE TI MANAGEMENT OF RETROPERITONEAL CHYLOUS LEAKAGE SO SPINE LA English DT Article DE LYMPHATIC; CHYLE; RETROPERITONEUM; ANTERIOR APPROACH; DRAINAGE CHYLOUS; COMPLICATIONS; FUSION AB Lymphatic complications are uncommon after spinal surgery. Postsurgical collections of lymph may result in chyloma, chylothorax, chylous ascites, or chyloretroperitoneum. Recommended treatment of chylothorax or chylous ascites includes drainage, and a low-fat diet using medium-chain triglyceride or total parenteral nutrition. The only reported case of chyloretroperitoneum concluded with a recommendation for retroperitoneal drainage. The authors present a series of three patients who underwent anterior spinal procedures complicated by retroperitoneal lymphatic injury. All three were treated without retroperitoneal drains and at follow-up, none has shown any adverse sequelae from this method of treatment. The authors disagree with past recommendations for drainage of the retroperitoneal space because this may prolong drainage and deplete nutrition. RP DEHART, MM (reprint author), WILFORD HALL USAF MED CTR,MC,PSSB,COMBINED INTEGRATED SPINAL RES UNIT,2200 BERGQUIST DR,LACKLAND AFB,TX 78236, USA. NR 0 TC 26 Z9 28 U1 0 U2 0 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 0362-2436 J9 SPINE JI SPINE PD MAR 15 PY 1994 VL 19 IS 6 BP 716 EP 718 PG 3 WC Clinical Neurology; Orthopedics SC Neurosciences & Neurology; Orthopedics GA NC206 UT WOS:A1994NC20600012 PM 8009338 ER PT J AU NEWELL, TC ALSING, PM GAVRIELIDES, A KOVANIS, V AF NEWELL, TC ALSING, PM GAVRIELIDES, A KOVANIS, V TI SYNCHRONIZATION OF CHAOTIC DIODE RESONATORS BY OCCASIONAL PROPORTIONAL FEEDBACK SO PHYSICAL REVIEW LETTERS LA English DT Article ID OSCILLATOR; BEHAVIOR AB Synchronization of a pair of chaotic diode resonators has been experimentally achieved by applying a minute feedback signal to the amplitude of the drive voltage of a slave resonator. The signal is proportional to the voltage difference between the two resonators and is applied for a fraction of the driving cycle. This method is the synchronization analog of the occasional proportional feedback scheme developed by Hunt for controlling unstable periodic orbits in chaotic attractors. C1 UNIV N TEXAS, DEPT PHYS, DENTON, TX 76203 USA. RP PHILLIPS LAB, CTR NONLINEAR OPT, 3550 ABERDEEN AVE SE, KIRTLAND AFB, KIRTLAND AFB, NM 87117 USA. NR 16 TC 49 Z9 49 U1 1 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 EI 1079-7114 J9 PHYS REV LETT JI Phys. Rev. Lett. PD MAR 14 PY 1994 VL 72 IS 11 BP 1647 EP 1650 DI 10.1103/PhysRevLett.72.1647 PG 4 WC Physics, Multidisciplinary SC Physics GA NA492 UT WOS:A1994NA49200019 ER PT J AU LANGFORD, RE AF LANGFORD, RE TI ROLE OF RESEARCH IN THE ARMY HEALTH-HAZARD ASSESSMENT PROGRAM SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 USA,MED RES DETACHMENT,WRIGHT PATTERSON AFB,OH. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 30 EP CHAS PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY954 UT WOS:A1994MY95401347 ER PT J AU SNYDER, CE GSCHWENDER, LJ DEMERS, JR AF SNYDER, CE GSCHWENDER, LJ DEMERS, JR TI METAL-CATALYZED THERMOOXIDATION OF PERFLUOROPOLYALKYLETHER FLUIDS AND PROPERTY ENHANCEMENT VIA SOLUBLE ADDITIVES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 SW OHIO COUNCIL HIGHER EDUC,DAYTON,OH 45420. USAF,WRIGHT AERONAUT LABS,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 30 EP FLUO PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY954 UT WOS:A1994MY95402201 ER PT J AU HOUTZ, MD LAVOIE, JM PEDRICK, DL JONES, EG UNROE, MR TAN, LS AF HOUTZ, MD LAVOIE, JM PEDRICK, DL JONES, EG UNROE, MR TAN, LS TI POLYMER DEGRADATION STUDIES OF FLUORINATED POLYMERS - THERMAL-BEHAVIOR OF 6F-PBO SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 UNIV DAYTON,RES INST,DAYTON,OH 45469. USAF,WL,MLBP,POLYMER BRANCH,WRIGHT PATTERSON AFB,OH 45433. SYST RES LAB INC,DAYTON,OH 45440. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 66 EP POLY PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY955 UT WOS:A1994MY95501097 ER PT J AU EDWARDS, T LIBERIO, PD AF EDWARDS, T LIBERIO, PD TI THE THERMAL-OXIDATIVE STABILITY OF FUELS AT 480-DEGREES-C (900-DEGREES-F) SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract 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 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 69 EP PETR PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY955 UT WOS:A1994MY95500638 ER PT J AU EDWARDS, T LIBERIO, PD AF EDWARDS, T LIBERIO, PD TI THE RELATIONSHIP BETWEEN OXIDATION AND PYROLYSIS IN FUELS HEATED TO 590-DEGREES-C (1100-DEGREES-F) SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract 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 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 70 EP PETR PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY955 UT WOS:A1994MY95500639 ER PT J AU FELDKAMP, JR STAUFFER, TB AF FELDKAMP, JR STAUFFER, TB TI INTERACTIONS OF BINARY SOLVENTS WITH EXPANDABLE CLAYS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARMSTRONG LAB,DIV ENVIRONM RES,TYNDALL AFB,FL 32403. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 89 EP ENVR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY954 UT WOS:A1994MY95401996 ER PT J AU SRINIVASAN, KR TAN, LS BAI, SJ SPRY, RJ AF SRINIVASAN, KR TAN, LS BAI, SJ SPRY, RJ TI AROMATIC BENZOBISTHIAZOLE POLYMERS AND COPOLYMERS INCORPORATED WITH ELECTRON-RICH TRIARYLAMINO MOIETIES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 SYSTRAN CORP,DAYTON,OH 45432. WRIGHT LAB,MLBP,POLYMER BRANCH,WRIGHT PATTERSON AFB,OH 45433. UNIV DAYTON,RES INST,DAYTON,OH 45469. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 98 EP POLY PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY955 UT WOS:A1994MY95501129 ER PT J AU LICHTENHAN, JD MANTZ, RA JONES, PF CARR, MJ AF LICHTENHAN, JD MANTZ, RA JONES, PF CARR, MJ TI STRUCTURE-PROPERTY RELATIONSHIPS FOR POLYHEDRAL OLIGOMERIC SILSESQUIOXANE (POSS)-SILOXANE COPOLYMERS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 USAF,PHILLIPS LAB,ROCKET PROPULS DIRECTORATE,EDWARDS AFB,CA 93524. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 109 EP POLY PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY955 UT WOS:A1994MY95501141 ER PT J AU SHOCKEY, E LICHTENHAN, JD AF SHOCKEY, E LICHTENHAN, JD TI HOMOPOLYMERIZATION AND COPOLYMERIZATION OF ALPHA-OLEFIN FUNCTIONALIZED POLYHEDRAL OLIGOSILSESQUIOXANE MACROMERS AND C6 OR C8 ALPHA-OLEFINS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 USAF,PHILLIPS LAB,ROCKET PROPULS DIRECTORATE,EDWARDS AFB,CA 93524. NR 0 TC 0 Z9 0 U1 2 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 110 EP POLY PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY955 UT WOS:A1994MY95501142 ER PT J AU BOLF, AG LICHTENHAN, JD AF BOLF, AG LICHTENHAN, JD TI THERMOPLASTIC ELASTOMER BLENDS PREPARED WITH POLYCARBOSILANE AND POLYSILASTYRENE PRECERAMIC POLYMERS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 USAF,HUGHES STX CORP,PHILLIPS LAB,ROCKET PROPULS DIRECTORATE,EDWARDS AFB,CA 93524. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 111 EP POLY PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY955 UT WOS:A1994MY95501143 ER PT J AU LINDSAY, GA HERMAN, WN ASHLEY, PR LEE, CYC AF LINDSAY, GA HERMAN, WN ASHLEY, PR LEE, CYC TI APPLICATIONS FOR POLYMERIC NONLINEAR OPTICS IN THE MILITARY SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 USAF,AFOSR AFMC,BOLLING AFB,DC. USN,NAWCWPNS,CHINA LAKE,CA 93555. USN,NAWCAD,WARMINSTER,PA 18974. USA,MISSILE RES & DEV COMMAND,REDSTONE ARSENAL,AL 35809. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 156 EP IEC PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY954 UT WOS:A1994MY95402702 ER PT J AU CHEN, JP AF CHEN, JP TI SYNTHESIS OF FUNCTIONALIZED HIGH-TEMPERATURE POLYMERS FOR POLYMER-SILICA HYBRID MATERIALS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ADTECH SYST RES INC,DAYTON,OH 45433. WRIGHT LAB,MAT DIRECTORATE,POLYMER BRANCH,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 161 EP PMSE PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY955 UT WOS:A1994MY95501620 ER PT J AU AHMAD, Z WANG, S MARK, JE CHEN, JP ARNOLD, FE AF AHMAD, Z WANG, S MARK, JE CHEN, JP ARNOLD, FE TI MECHANICAL-PROPERTIES OF HYBRID MATERIALS CONSISTING OF BENZOXAZOLE COPOLYMERS AND SILICA SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract 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 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 162 EP PMSE PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY955 UT WOS:A1994MY95501621 ER PT J AU DANG, TD CHEN, JP ARNOLD, FE AF DANG, TD CHEN, JP ARNOLD, FE TI STRUCTURAL TAILORING HIGH-TEMPERATURE POLYMERS FOR SOL-GEL PROCESSING SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 UNIV DAYTON,RES INST,DAYTON,OH 45469. ADTECH SYST RES INC,DAYTON,OH 45433. WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 225 EP PMSE PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY955 UT WOS:A1994MY95501684 ER PT J AU MITCHELL, LWS STRAWSER, LD FULLER, J AF MITCHELL, LWS STRAWSER, LD FULLER, J TI A STRUCTURAL INVESTIGATION OF IMIDAZOLIUM TOLUENE-P-SULFONATE SALTS FOR POTENTIAL NONLINEAR-OPTICAL APPLICATIONS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 USAF ACAD,DEPT CHEM,COLORADO SPRINGS,CO 80840. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 253 EP CHED PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY954 UT WOS:A1994MY95401083 ER PT J AU STANLEY, GA STRAWSER, LD AF STANLEY, GA STRAWSER, LD TI AN INVESTIGATION OF THE PARTIAL-PURIFICATION AND PHYSICAL-PROPERTIES OF NITRATE REDUCTASE FROM BACILLUS-ANTHRACIS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 USAF ACAD,DEPT CHEM,COLORADO SPRINGS,CO 80840. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 254 EP CHED PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY954 UT WOS:A1994MY95401084 ER PT J AU CHEN, J GIORGIANNI, CJ KILLPACK, MO AF CHEN, J GIORGIANNI, CJ KILLPACK, MO TI FORMATION OF ALPHA-AMINO ALKOXIDES BY THE ADDITION OF LITHIATED SECONDARY-AMINES TO KETONES WITH ALPHA-PROTONS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 USAF ACAD,DEPT CHEM,COLORADO SPRINGS,CO 80840. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 277 EP CHED PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY954 UT WOS:A1994MY95401107 ER PT J AU REIMAN, MD KELLEY, CK AF REIMAN, MD KELLEY, CK TI THERMAL OXIDATIVE INTERACTIONS IN PHOSPHATE ESTER METAL SYSTEMS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 USAF ACAD,DEPT CHEM,COLORADO SPRINGS,CO 80840. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 282 EP CHED PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY954 UT WOS:A1994MY95401112 ER PT J AU MORRIS, RA VIGGIANO, AA VANDOREN, JM AF MORRIS, RA VIGGIANO, AA VANDOREN, JM TI IN-SITU DETECTION OF GASEOUS CIONO2 IN THE ATMOSPHERE AND ION-ASSISTED NEUTRAL REACTIONS OF CIONO2 WITH HCL AND H2O SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 USAF,GEOPHYS DIRECTORATE,PHILLIPS LAB,BEDFORD,MA 01731. COLL HOLY CROSS,DEPT CHEM,WORCESTER,MA 01610. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 312 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY955 UT WOS:A1994MY95500948 ER PT J AU CHABINYC, ML HENES, JD FRATINI, AV YEATES, AT DUDIS, DS AF CHABINYC, ML HENES, JD FRATINI, AV YEATES, AT DUDIS, DS TI AROMATIC ORGANIC HETEROCYCLIC MOLECULES FOR CHI(2) NONLINEAR-OPTICAL APPLICATIONS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 UNIV DAYTON,DEPT CHEM,DAYTON,OH 45469. UNIV DAYTON,RES INST,DAYTON,OH 45469. USAF,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RI Chabinyc, Michael/E-2387-2011 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 316 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY955 UT WOS:A1994MY95500952 ER PT J AU WANG, CS BURKETT, J ARNOLD, FE AF WANG, CS BURKETT, J ARNOLD, FE TI ELECTRICAL-CONDUCTIVITY IN HIGHLY ORIENTED LADDER POLYMER BBL SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 UNIV DAYTON,RES INST,DAYTON,OH 45469. MAT DIRECTORATE,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 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 316 EP POLY PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY955 UT WOS:A1994MY95501347 ER PT J AU RAKOWSKY, MH MITCHELL, JA KUHN, WK DREVINSKY, PJ AF RAKOWSKY, MH MITCHELL, JA KUHN, WK DREVINSKY, PJ TI EFFECTS OF IRRADIATION ON NATIVE DEFECTS IN ZNGEP2 SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 USAF ACAD,FJ SEILER RES LAB,COLORADO SPRINGS,CO 80840. USAF,PHILLIPS LAB,BEDFORD,MA 01731. NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 13 PY 1994 VL 207 BP 534 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA MY954 UT WOS:A1994MY95403294 ER PT J AU MISHARK, K HARRISON, M AF MISHARK, K HARRISON, M TI CLINICAL PROBLEM-SOLVING - THE PURSUIT OF CERTAINTY SO NEW ENGLAND JOURNAL OF MEDICINE LA English DT Letter ID METASTASES; SURGERY; BRAIN RP MISHARK, K (reprint author), USAF,DAVID GRANT MED CTR,TRAVIS AFB,CA 94535, USA. NR 3 TC 0 Z9 0 U1 0 U2 0 PU MASS MEDICAL SOC PI BOSTON PA 10 SHATTUCK, BOSTON, MA 02115 SN 0028-4793 J9 NEW ENGL J MED JI N. Engl. J. Med. PD MAR 3 PY 1994 VL 330 IS 9 BP 644 EP 644 PG 1 WC Medicine, General & Internal SC General & Internal Medicine GA MY573 UT WOS:A1994MY57300028 PM 8302358 ER PT J AU KHOT, NS HEISE, SA AF KHOT, NS HEISE, SA TI CONSIDERATION OF PLANT UNCERTAINTIES IN OPTIMUM STRUCTURAL-CONTROL DESIGN SO AIAA JOURNAL LA English DT Article ID OPTIMIZATION AB An integrated design approach for the optimum design of a controlled structure is presented. The control design method takes into consideration both structured and unstructured uncertainties by improving a bound on the H(infinity) norm of the closed-loop system and satisfying a constraint on the linear quadratic Gaussian performance index. The controller is designed by solving three Riccati equations. The weight of the structure is specified as an objective function with constraints on the structural frequencies, the closed-loop damping, and the performance index. The numerical results are presented for a three-dimensional truss structure to illustrate the application of the integrated approach. RP KHOT, NS (reprint author), WRIGHT LAB,DIV STRUCT,FLIGHT DYNAM DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433, USA. NR 12 TC 25 Z9 25 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 MAR PY 1994 VL 32 IS 3 BP 610 EP 615 DI 10.2514/3.12028 PG 6 WC Engineering, Aerospace SC Engineering GA MY520 UT WOS:A1994MY52000022 ER PT J AU SCHOEPPNER, GA WOLFE, WE SANDHU, RS AF SCHOEPPNER, GA WOLFE, WE SANDHU, RS TI STRESS-BASED ELASTODYNAMIC DISCRETE LAMINATED PLATE-THEORY SO AIAA JOURNAL LA English DT Article ID FIELDS AB A static laminated plate theory based on an assumed piecewise linear through-the-thickness in-plane stress distribution has been extended to include inertia effects. Based on this in-plane stress distribution assumption, out-of-plane shear and normal stress component distributions were derived from the three-dimensional equations of motion, resulting in six nonzero stress components. Hamilton's variational principle was used to derive the plate equations of motion, the plate constitutive relationships, and the interface continuity equations. The governing equations were written in a form that is self-adjoint with respect to the convolution bilinear mapping. The resulting system of equations for a single lamina consists of 25 field equations in terms of 9 weighted displacement field variables, 10 stress and moment resultant field variables, and 6 out-of-plane shear and normal stress boundary field variables. For the laminated system, the mixed formulation enforces both traction and displacement continuity at lamina interfaces as it satisfies layer equilibrium. A finite element formulation based on a specialized form of the governing functional was developed. The method is illustrated with results of a free vibration analysis of sandwich and homogeneous plates for which exact solutions are available. C1 OHIO STATE UNIV, DEPT CIVIL ENGN, COLUMBUS, OH 43210 USA. RP WRIGHT LAB, DIV STRUCT, FLIGHT DYNAM DIRECTORATE, WRIGHT PATTERSON AFB, OH 45433 USA. NR 12 TC 3 Z9 3 U1 0 U2 1 PU AMER INST AERONAUTICS ASTRONAUTICS PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091-4344 USA SN 0001-1452 EI 1533-385X J9 AIAA J JI AIAA J. PD MAR PY 1994 VL 32 IS 3 BP 616 EP 626 PG 11 WC Engineering, Aerospace SC Engineering GA MY520 UT WOS:A1994MY52000023 ER PT J AU SCHIERMEYER, RP FINKELSTEIN, JA AF SCHIERMEYER, RP FINKELSTEIN, JA TI RAPID INFUSION OF MAGNESIUM-SULFATE OBVIATES NEED FOR INTUBATION IN STATUS-ASTHMATICUS SO AMERICAN JOURNAL OF EMERGENCY MEDICINE LA English DT Note DE ASTHMA; MAGNESIUM C1 WILFORD HALL USAF MED CTR,BROOKE ARMY MED CTR,EMERGENCY MED RESIDENCY PROGRAM,JOINT MIL MED CTR,SAN ANTONIO,TX. NR 0 TC 34 Z9 34 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 MAR PY 1994 VL 12 IS 2 BP 164 EP 166 DI 10.1016/0735-6757(94)90238-0 PG 3 WC Emergency Medicine SC Emergency Medicine GA NC364 UT WOS:A1994NC36400009 PM 8161388 ER PT J AU THADANI, U MARANDA, CR AMSTERDAM, E SPACCAVENTO, L FRIEDMAN, RG CHERNOFF, R ZELLNER, S GORWIT, J HINDERAKER, PH AF THADANI, U MARANDA, CR AMSTERDAM, E SPACCAVENTO, L FRIEDMAN, RG CHERNOFF, R ZELLNER, S GORWIT, J HINDERAKER, PH TI LACK OF PHARMACOLOGICAL TOLERANCE AND REBOUND ANGINA-PECTORIS DURING TWICE-DAILY THERAPY WITH ISOSORBIDE-5-MONONITRATE SO ANNALS OF INTERNAL MEDICINE LA English DT Article DE ANGINA PECTORIS; ISOSORBIDE; DOSE-RESPONSE RELATIONSHIP, DRUG; EXERCISE TOLERANCE ID TRANSDERMAL NITROGLYCERIN PATCHES; ORAL ISOSORBIDE DINITRATE; CHRONIC STABLE ANGINA; GLYCERYL TRINITRATE; NITRATE TOLERANCE; DURATION; 5-MONONITRATE; INTERVALS; EFFICACY AB Objective: To determine whether isosorbide-5-mononitrate (IS-5-MN), an active metabolite of isosorbide dinitrate, when given twice daily (in the morning and 7 hours later), prevents development of tolerance and reduction in exercise performance or is associated with a rebound increase in anginal attacks in patients with stable angina pectoris. Design: Multicenter, placebo-controlled, parallel-group, double-blind, randomized study. Setting: Four university teaching hospitals and five private cardiology outpatient clinics. Patients: 116 patients with stable exertional angina who stopped treadmill exercise because of angina pectoris. Intervention: After stopping all antianginal drugs with the exception of beta-blockers, patients received single-blind placebo for 1 week followed by either 20 mg of IS-5-MN (n = 60 patients) or placebo (n = 62 patients) twice daily at 0800 hours and 1500 hours for 2 weeks. Measurements: Serial symptom-limited exercise tests and patients' diaries recording activity and date, time, and severity of anginal attacks. Results: Compared with placebo recipients, patients receiving IS-5-MN walked significantly longer at 2, 5, and 7 hours after the 0800-hour dose (P < 0.01) and at 2 and 5 hours after the 1500-hour dose (P < 0.01). Before the morning (0800-hour) dose, exercise duration increased by 0.53 minutes in placebo recipients and by 0.85 minutes in those receiving IS-5-MN therapy (P = 0.10). Neither nocturnal nor early-morning anginal attacks; increased during IS-5-MN therapy compared with placebo. Headaches occurred in 19 (32%) patients in the IS-5-MN group and in 9 (15%)- patients in the placebo group but necessitated discontinuation of treatment in only 2 (3%) patients in the IS-5-MN group. Conclusion: Isosorbide-5-mononitrate, 20 mg twice daily given 7 hours apart, was well tolerated and improved exercise performance for 7 hours after the morning dose and for 5 hours after the afternoon dose without evidence of development of pharmacologic tolerance. No rebound increase in anginal attacks was found. C1 MCGILL UNIV,QUEEN ELIZABETH HOSP,MONTREAL,PQ,CANADA. UNIV CALIF DAVIS,SACRAMENTO,CA 95817. WILFORD HALL USAF MED CTR,LACKLAND AFB,TX. CTR STRESS STUDIES SAN DIEGO,SAN DIEGO,CA 92103. TAYLOR HOSP,RIDLEY PK,PA 19078. CLIN PHYSIOL ASSOCIATES,FT MYERS,FL 33916. ESCONDIDO CARDIOL,ESCONDIDO,CA 92025. JACKSON CLIN,MADISON,WI 53701. RP THADANI, U (reprint author), UNIV OKLAHOMA,HLTH SCI CTR,CARDIOL SECT,920 STANTON YOUNG BLVD,5SP-300,OKLAHOMA CITY,OK 73104, USA. NR 39 TC 55 Z9 53 U1 0 U2 0 PU AMER COLL PHYSICIANS PI PHILADELPHIA PA INDEPENDENCE MALL WEST 6TH AND RACE ST, PHILADELPHIA, PA 19106-1572 SN 0003-4819 J9 ANN INTERN MED JI Ann. Intern. Med. PD MAR 1 PY 1994 VL 120 IS 5 BP 353 EP 359 PG 7 WC Medicine, General & Internal SC General & Internal Medicine GA MY497 UT WOS:A1994MY49700001 PM 8093132 ER PT J AU SHIKORA, SA BENOTTI, PN JOHANNIGMAN, JA AF SHIKORA, SA BENOTTI, PN JOHANNIGMAN, JA TI THE OXYGEN COST OF BREATHING MAY PREDICT WEANING FROM MECHANICAL VENTILATION BETTER THAN THE RESPIRATORY RATE TO TIDAL VOLUME RATIO SO ARCHIVES OF SURGERY LA English DT Article ID AIRWAY OCCLUSION PRESSURE; CRITICALLY ILL PATIENTS; EXTUBATION CRITERIA; UNSUCCESSFUL TRIALS; GAS-EXCHANGE; WORK; DISEASE; SYSTEM AB Objective: To compare the respiratory rate to tidal volume ratio with the oxygen cost of breathing to see which could more accurately predict the outcome of ventilator weaning for surgical patients. Design: Prospective comparison of two modalities used to predict the likelihood of successful ventilator weaning. Patients: Twenty-eight consecutive patiens with chronic respiratory insufficiency requiring long-term mechanical ventilation in the surgical intensive care unit at New England Deaconess Hospital, Boston, Mass, were studied. Main Outcome Measures: The oxygen cost of breathing and the respiratory rate to tidal volume ratio were measured during spontaneous breathing. Patients extubated within 2 weeks of being studied were designated as extubated while patients not extubated within this period or requiring reintubation were recorded as not extubated. Results: The oxygen cost of breathing predicted succesful extubation in all five patients who were extubated, and failure in 20 of 23 patients who could not be extubated (sensitivity, 100%; specificity, 87%). In contrast, the respiratory rate to tidal volume ratio predicted extubation for only two of five patients who were extubated and predicted failure in only 12 of 23 patients who could not be extubated (sensitivity, 40%; specificity, 52%). Conclusion: For this group of patients requiring prolonged ventilation, the oxygen cost of breathing proved to be a more reliable predictor of both successful extubation and failure. C1 TUFTS NEW ENGLAND MED CTR,BOSTON,MA. RP SHIKORA, SA (reprint author), WILFORD HALL USAF MED CTR,PSSG,DEPT SURG,LACKLAND AFB,TX 78236, USA. NR 26 TC 34 Z9 36 U1 0 U2 0 PU AMER MEDICAL ASSOC PI CHICAGO PA 515 N STATE ST, CHICAGO, IL 60610 SN 0004-0010 J9 ARCH SURG-CHICAGO JI Arch. Surg. PD MAR PY 1994 VL 129 IS 3 BP 269 EP 274 PG 6 WC Surgery SC Surgery GA NA520 UT WOS:A1994NA52000008 PM 8129602 ER PT J AU KING, RE AF KING, RE TI ASSESSING AVIATORS FOR PERSONALITY PATHOLOGY WITH THE MILLON CLINICAL MULTIAXIAL INVENTORY (MCMI) SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID DISORDERS AB Psychiatrists independently evaluated 82 aviators referred to an aeromedical consultation service who had been administered the Millon Clinical Multiaxial Inventory (MCMI). The MCMI personality scales of those aviators psychiatrically deemed to be free from personality pathology were compared to the scales of those aviators psychiatrically assessed to have maladaptive personalities. The MCMI personality scales reached statistical significance (p < 0.005) for identifying Diagnostic and Statistical Manual of Mental Disorders (2) Cluster C (dependent or avoidant or both) maladaptive personality traits, but did not reach statistical significance for Cluster B (histrionic or narcissistic or both) traits. Military aviators are a. highly selected group who have mastered numerous obstacles and who continually prove their adaptability. The prevalence of personality pathology is likely not as great in this population as would be suggested by the MCMI. An elevation of a Cluster C scale, however, warrants a high index of suspicion. RP KING, RE (reprint author), AOCN,ARMSTRONG LAB,AEROSP MED DIRECTORATE,DIV CLIN SCI,NEUROPSYCHIAT BRANCH,BROOKS AFB,TX 78235, USA. NR 18 TC 9 Z9 9 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 MAR PY 1994 VL 65 IS 3 BP 227 EP 231 PG 5 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA MZ304 UT WOS:A1994MZ30400008 PM 8185552 ER PT J AU LEONARD, F AF LEONARD, F TI THE UNITED-STATES-AIR-FORCE CRASH AMBULANCE - ORIGINS, CURRENT USE, AND SUGGESTED FUTURE-DIRECTIONS SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Note ID MILITARY POPULATION; PREHOSPITAL CARE; EMS SYSTEMS; EPIDEMIOLOGY; URBAN; NEED AB The United States Air Force (USAF) maintains a crash ambulance, staffed by flight surgeons and aeromedical technicians, which is separate from the ambulance service maintained and staffed by base hospital or clinic personnel. A survey was performed to assess the current use and staffing of this ambulance. Results showed low use, and difficulties in training and maintaining experienced crews. A single integrated ambulance system is proposed to replace the current separate systems. Such a system could improve overall response capability, and more efficiently and effectively use available resources. C1 USAF,SCH AEROSP MED,BROOKS AFB,TX. NR 26 TC 2 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 MAR PY 1994 VL 65 IS 3 BP 243 EP 248 PG 6 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA MZ304 UT WOS:A1994MZ30400011 PM 8185555 ER PT J AU MARTIN, GA AF MARTIN, GA TI AEROSPACE OR AVIATION MEDICINE SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Editorial Material ID SPACE AB As the United States and its international partners prepare Space Station Freedom components and systems for operational readiness, and as the space medicine community expands its research efforts, the U.S. Air Force finds itself with little direct input into these endeavors. Due to fiscal and patient care commitments, the Air Force has gone from its early position of leadership and pioneering in space medicine to its present day lack of involvement. Clearly, H the Air Farce wishes to have any influence in this growing field, and to continue Po be considered a leader in ''Aerospace'' Medicine, efforts must be made now to reinvest Air Force resources and physicians into current research and operational space Medicine projects, RP MARTIN, GA (reprint author), USAF,MED CTR SCOTT,DEPT EMERGENCY MED,503 GLEN ADDIE BLVD,BELLEVILLE,IL 62221, USA. NR 14 TC 2 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 MAR PY 1994 VL 65 IS 3 BP 257 EP 258 PG 2 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA MZ304 UT WOS:A1994MZ30400014 PM 8185558 ER PT J AU PREVIC, FH AF PREVIC, FH TI NEUROPSYCHOLOGY AND THE ART OF REACHING - REPLY SO BEHAVIORAL AND BRAIN SCIENCES LA English DT Discussion ID HUMANS RP PREVIC, FH (reprint author), USAF,ARMSTRONG LAB,DIV CREW TECHNOL,CFTF,2504 D DR STE 1,BROOKS AFB,TX 78235, USA. NR 7 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 0140-525X J9 BEHAV BRAIN SCI JI Behav. Brain Sci. PD MAR PY 1994 VL 17 IS 1 BP 174 EP 175 PG 2 WC Psychology, Biological; Behavioral Sciences; Neurosciences SC Psychology; Behavioral Sciences; Neurosciences & Neurology GA NE987 UT WOS:A1994NE98700089 ER PT J AU FRAZEE, C AF FRAZEE, C TI RELIGIOUS AND SECULAR FORCES IN LATE CZARIST RUSSIA - ESSAYS IN HONOR OF TREADGOLD,DONALD,W. - TIMBERLAKE,CE, EDITOR SO CHURCH HISTORY LA English DT Book Review RP FRAZEE, C (reprint author), USAF ACAD,COLORADO SPRINGS,CO 80840, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU AMER SOC CHURCH HISTORY PI RED BANK PA PO BOX 8517, RED BANK, NJ 07701 SN 0009-6407 J9 CHURCH HIST JI Church Hist. PD MAR PY 1994 VL 63 IS 1 BP 145 EP 145 DI 10.2307/3167880 PG 1 WC History; Religion SC History; Religion GA NG008 UT WOS:A1994NG00800052 ER PT J AU WESTFALL, P AF WESTFALL, P TI AFIT PROVIDES SATELLITE LEARNING FOR MILITARY SO COMMUNICATIONS NEWS LA English DT Article RP WESTFALL, P (reprint author), USAF,CTR DISTANCE LEARNING,WRIGHT PATTERSON AFB,OH, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU NELSON PUBLISHING PI NOKOMIS PA 2504 NORTH TAMIAMI TRAIL, NOKOMIS, FL 34275-3482 SN 0010-3632 J9 COMMUN NEWS JI Commun. News PD MAR PY 1994 VL 31 IS 3 BP 22 EP 22 PG 1 WC Telecommunications SC Telecommunications GA PU732 UT WOS:A1994PU73200008 ER PT J AU MALL, S BULLOCK, DE PERNOT, JJ AF MALL, S BULLOCK, DE PERNOT, JJ TI TENSILE FRACTURE-BEHAVIOR OF FIBER-REINFORCED CERAMIC-MATRIX COMPOSITE WITH HOLE SO COMPOSITES LA English DT Article DE CERAMIC-MATRIX COMPOSITE; NOTCH STRENGTH; DAMAGE MECHANISMS; NOTCH SENSITIVITY; SILICON CARBIDE FIBERS; ALUMINOSILICATE MATRIX ID FAILURE MECHANISMS; FATIGUE BEHAVIOR; GLASS AB The fracture behaviour of silicon carbide fibre-reinforced aluminosilicate glass-ceramic composite, SiC/1723, with a circular hole was studied. Two lay-ups were examined: unidirectional, [O](8), and cross-ply, [0/90](2s). Different hole diameter (D) to specimen width (W) ratios ranging from 0.1 to 0.4 were investigated. The notched strength for both lay-ups and different D/W ratios was found to be almost equal to the net section strength, showing that the tested ceramic-matrix composite was basically notch insensitive. A systematic investigation of damage initiation and progression was undertaken to explain this finding. C1 WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RP MALL, S (reprint author), USAF,INST TECHNOL,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433, USA. NR 18 TC 14 Z9 14 U1 1 U2 3 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0010-4361 J9 COMPOSITES JI Composites PD MAR PY 1994 VL 25 IS 3 BP 237 EP 242 DI 10.1016/0010-4361(94)90022-1 PG 6 WC Materials Science, Composites SC Materials Science GA MW797 UT WOS:A1994MW79700010 ER PT J AU DAWOOD, M AF DAWOOD, M TI COMPANIES, AGENCIES SHOULD SEEK ISO-9000 CERTIFICATION SO COMPUTER LA English DT Article RP DAWOOD, M (reprint author), SCI APPLICAT INT CORP,OGDEN ALC TISEC,7278 4TH ST,HILL AFB,UT 84056, USA. NR 4 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 0018-9162 J9 COMPUTER JI Computer PD MAR PY 1994 VL 27 IS 3 BP 110 EP 111 PG 2 WC Computer Science, Hardware & Architecture; Computer Science, Software Engineering SC Computer Science GA NB451 UT WOS:A1994NB45100016 ER PT J AU LAWLIS, P AF LAWLIS, P TI A CASE-STUDY WHERE ADA OUTPERFORMS ASSEMBLY SO ELECTRONIC ENGINEERING LA English DT Article RP LAWLIS, P (reprint author), USAF,INST TECHNOL,WASHINGTON,DC 20330, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU MILLER FREEMAN TECHNICAL LTD PI LONDON PA CALDERWOOD ST, LONDON, ENGLAND SE18 6QH SN 0013-4902 J9 ELECTRON ENG JI Electron. Eng. PD MAR PY 1994 VL 66 IS 807 BP 73 EP & PG 0 WC Engineering, Electrical & Electronic SC Engineering GA NB337 UT WOS:A1994NB33700015 ER PT J AU MARTIN, RJ SANDHU, RS PALAZOTTO, AN AF MARTIN, RJ SANDHU, RS PALAZOTTO, AN TI EXPERIMENTAL AND ANALYTICAL COMPARISONS OF FAILURE IN THERMOPLASTIC COMPOSITE LAMINATES SO EXPERIMENTAL MECHANICS LA English DT Article AB Failure characteristics of Gr/PEEK were studied, using an experimental investigation and a fully nonlinear ply-by-ply finite-element technique. The stacking sequence of the laminates (with centrally located holes) investigated were: 0, 90, +/-45 deg, (0/45/90/-45 deg)(2s) and (0/+/-45/90 deg)(2s). The [O deg] laminate failure was characterized by splitting at the extremities of the hole and along the fibers. The [90 deg] laminates failed in the transverse direction, whereas the [+/-45 deg] laminates exhibited considerable elongation to failure. In the case of the quasi-isotropic laminates, the failure progression appeared to be due dominantly to matrix cracking followed by fiber failure. Analytical predictions of the failure process showed reasonably good correlation with the experimentally determined data. C1 USAF,WRIGHT LAB,DIV STRUCT,STRUCT CONCEPTS BRANCH,WRIGHT PATTERSON AFB,OH 45433. USAF,INST TECHNOL,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433. RP MARTIN, RJ (reprint author), HARRIS GRP,SUITE 200,1801 ROBERT FULTON DR,RESTON,VA 22091, USA. NR 16 TC 3 Z9 3 U1 0 U2 1 PU SOC EXPERIMENTAL MECHANICS PI BETHEL PA 7 SCHOOL STREET, BETHEL, CT 06801 SN 0014-4851 J9 EXP MECH JI Exp. Mech. PD MAR PY 1994 VL 34 IS 1 BP 53 EP 65 DI 10.1007/BF02328442 PG 13 WC Materials Science, Multidisciplinary; Mechanics; Materials Science, Characterization & Testing SC Materials Science; Mechanics GA NF458 UT WOS:A1994NF45800008 ER PT J AU DEMPSEY, CL AF DEMPSEY, CL TI HEALTH AND SOCIAL-ISSUES OF GAY, LESBIAN, AND BISEXUAL ADOLESCENTS SO FAMILIES IN SOCIETY-THE JOURNAL OF CONTEMPORARY HUMAN SERVICES LA English DT Article ID SUICIDE; YOUTH AB Ten percent of the adolescent population in the United States is gay, lesbian, or bisexual. These teens are difficult to identify and many people are unaware of their existence, problems, and needs. The author reviews current professional and lay literature regarding social and health issues of adolescent homosexuality and presents implications for practitioners in providing comprehensive, culturally appropriate services for these individuals. RP DEMPSEY, CL (reprint author), USAF,MED CTR SCOTT,SCOTT AFB,IL 62225, USA. NR 24 TC 28 Z9 28 U1 0 U2 3 PU FAMILY SERVICE AMER PI MILWAUKEE PA 11700 WEST LAKE PARK DRIVE, MILWAUKEE, WI 53224 SN 1044-3894 J9 FAM SOC-J CONTEMP H JI Fam. Soc.-J. Contemp. Hum. Serv. PD MAR PY 1994 VL 75 IS 3 BP 160 EP 167 PG 8 WC Family Studies; Social Work SC Family Studies; Social Work GA NB836 UT WOS:A1994NB83600005 ER PT J AU CRANDALL, CG RAVEN, PB JOHNSON, JM ENGELKE, KA CONVERTINO, VA AF CRANDALL, CG RAVEN, PB JOHNSON, JM ENGELKE, KA CONVERTINO, VA TI ALTERED THERMOREGULATORY RESPONSES FOLLOWING 15 DAYS SIMULATED MICROGRAVITY SO FASEB JOURNAL LA English DT Meeting Abstract C1 TCOM,FT WORTH,TX 76107. UTHSCSA,SAN ANTONIO,TX 78284. NASA,KENNEDY SPACE CTR,FL 32899. NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. ARMSTRONG LAB,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 SN 0892-6638 J9 FASEB J JI Faseb J. PD MAR PY 1994 VL 8 IS 4 BP A261 EP A261 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA ND196 UT WOS:A1994ND19601507 ER PT J AU BOEDIGHEIMER, RA KAPUR, KC AF BOEDIGHEIMER, RA KAPUR, KC TI CUSTOMER-DRIVEN RELIABILITY MODELS FOR MULTISTATE COHERENT SYSTEMS SO IEEE TRANSACTIONS ON RELIABILITY LA English DT Article DE RELIABILITY MODELING; RELIABILITY ANALYSIS; MULTISTATE SYSTEM; MULTISTATE COMPONENT; EQUIVALENCE CLASS; LOWER AND UPPER BOUNDARY POINT AB Reliability models for multistate coherent systems require customer interaction. The customer defines the distinctive component & system states. Knowing the component states, we estimate the probability distribution for each component. The customer specifies when a change in the state of any component forces a change in the state of the system. From this, we present a methodology to develop the customer's structure function and to calculate the probability of each system state. The customer defines & evaluates reliability. Using the customer's definition, we can summarize the probability distribution of the system. C1 UNIV WASHINGTON,IND ENGN PROGRAM,SEATTLE,WA 98195. RP BOEDIGHEIMER, RA (reprint author), USAF ACAD,HQ,DFMS,2354 FAIRCHILD DR,SUITE 6D2A,COLORADO SPRINGS,CO 80840, USA. NR 17 TC 60 Z9 60 U1 0 U2 6 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9529 J9 IEEE T RELIAB JI IEEE Trans. Reliab. PD MAR PY 1994 VL 43 IS 1 BP 46 EP 50 DI 10.1109/24.285107 PG 5 WC Computer Science, Hardware & Architecture; Computer Science, Software Engineering; Engineering, Electrical & Electronic SC Computer Science; Engineering GA NP204 UT WOS:A1994NP20400008 ER PT J AU SOREF, RA FRIEDMAN, L AF SOREF, RA FRIEDMAN, L TI ELECTROOPTICAL MODULATION IN SI1-XGEX SI AND RELATED HETEROSTRUCTURES SO INTERNATIONAL JOURNAL OF OPTOELECTRONICS LA English DT Article ID REFRACTIVE-INDEX; SILICON AB Recent progress on Si-based group IV electro-optic modulation is reviewed. Theoretical results are presented on plasma-effect modulation in Si1-x-yGe(x)C(y), Pockels-effect modulation in beta-SiC/Si, Ge1-xC(x)/Si and Sn1-xC(x)/Si, and 1.55 mum intersubband field-effect modulation in Si1-xGe(x) multiple quantum wells on Si. RP SOREF, RA (reprint author), USAF,ROME LAB,BEDFORD,MA 01731, USA. NR 13 TC 10 Z9 10 U1 0 U2 1 PU TAYLOR & FRANCIS LTD PI LONDON PA ONE GUNDPOWDER SQUARE, LONDON, ENGLAND EC4A 3DE SN 0952-5432 J9 INT J OPTOELECTRON JI Int. J. Optoelectron. PD MAR-APR PY 1994 VL 9 IS 2 BP 205 EP 210 PG 6 WC Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA PL780 UT WOS:A1994PL78000010 ER PT J AU ARMBRUSTER, DA SCHWARZHOFF, RH PIERCE, BL HUBSTER, EC AF ARMBRUSTER, DA SCHWARZHOFF, RH PIERCE, BL HUBSTER, EC TI METHOD COMPARISON OF EMIT-700 AND EMIT-II WITH RIA FOR DRUG SCREENING SO JOURNAL OF ANALYTICAL TOXICOLOGY LA English DT Article ID METABOLITE ASSAYS; CONFIRMATION RP ARMBRUSTER, DA (reprint author), ARMSTRONG LAB,DIV DRUG TESTING,BROOKS AFB,TX 78235, USA. NR 8 TC 9 Z9 10 U1 0 U2 1 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 MAR-APR PY 1994 VL 18 IS 2 BP 110 EP 117 PG 8 WC Chemistry, Analytical; Toxicology SC Chemistry; Toxicology GA NB984 UT WOS:A1994NB98400010 PM 8207931 ER PT J AU YU, PW YEN, MY STUTZ, CE AF YU, PW YEN, MY STUTZ, CE TI PHOTOLUMINESCENCE OF MG-ION IMPLANTATION IN LOW-TEMPERATURE-GROWN GAAS SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID MOLECULAR-BEAM EPITAXY; POINT-DEFECTS; ENERGIES AB Photoluminescence properties of Mg-ion implanted layers of low-temperature (179-400-degrees-C) grown molecular beam epitaxial GaAs are reported. The Mg incorporation into the Ga site mainly produces the Mg-related donor-acceptor pair transition. The Mg incorporation depends strongly on the growth temperature of the layers. Mg trapping at defect centers formed by the excess As increases exponentially with the increase of the reciprocal growth temperature and is the dominant mechanism for the failure of Mg to incorporate into the Ga site. The possibility of the trapping center for Mg being the As(in)-related defect originating from As-rich growth of low temperature GaAs is discussed. C1 UNIV DAYTON,RES INST,DAYTON,OH 45469. WRIGHT LAB,ELR,WRIGHT PATTERSON AFB,OH 45433. RP YU, PW (reprint author), WRIGHT STATE UNIV,UNIV RES CTR,DAYTON,OH 45435, USA. NR 18 TC 2 Z9 2 U1 1 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 1994 VL 75 IS 5 BP 2628 EP 2632 DI 10.1063/1.356238 PG 5 WC Physics, Applied SC Physics GA MY995 UT WOS:A1994MY99500050 ER PT J AU BRYAN, CL PATEFIELD, AJ COHEN, D NIELSEN, JL EMANUEL, B CALHOON, JH AF BRYAN, CL PATEFIELD, AJ COHEN, D NIELSEN, JL EMANUEL, B CALHOON, JH TI ASSESSMENT OF INJURY IN TRANSPLANTED AND NONTRANSPLANTED LUNGS AFTER 6 H OF COLD-STORAGE WITH GLUTATHIONE SO JOURNAL OF APPLIED PHYSIOLOGY LA English DT Article DE LUNG INJURY; TRANSPLANTATION; NEUTROPHIL; FREE RADICAL; CANINE; PULMONARY EDEMA; LIPID PEROXIDATION ID PULMONARY REIMPLANTATION RESPONSE; ARTERY OCCLUSION; REPERFUSION; EDEMA; PERMEABILITY; DISULFIDE; TRANSPORT; PRESSURE; RAT AB Single-lung transplantation after 3 h of hypothermic storage produces bilateral lung injury [pulmonary reimplantation response (PRR)]. We hypothesized that glutathione (GSH) hypothermic storage would protect both lungs from PRR for extended preservation times and that differences in injury and protection would be realized between the graft and the nontransplanted lung. Mongrel dogs underwent left single-lung autotransplantation after preservation for 5-6 h in Euro-Collins (EC) solution, EC plus exogenous GSH (EC + GSH), or Viaspan (VIA) at 4 degrees C. Lung injury was measured in both lungs after 1 h of reperfusion. EC dogs demonstrated significant increases in lung edema, lipid peroxidation, and alveolar neutrophil recruitment in the lung graft and to a less extent in the nontransplanted right lung compared with control dogs (P < 0.05). Edema, lipid peroxidation, and alveolar neutrophils were significantly reduced in both lungs from EC + GSH and VIA dogs compared with lungs from EC dogs (P < 0.05). An increase in large-pore permeability was measured in the lung graft from EC dogs compared with all other lungs. Bronchoalveolar lavage fluid lactate dehydrogenase and total protein concentrations were elevated in both lungs from all three groups of transplanted dogs compared with those of control dogs (P < 0.05). These data suggest that GSH-containing solutions attenuate the PRR after 6 h of ischemic hypothermic storage but that the protection is incomplete. Mechanisms of injury affecting the lung graft during the PRR appear to differ from those affecting the nontransplanted lung. C1 UNIV TEXAS,AUDIE L MURPHY MEM VET HOSP,HLTH SCI CTR,DEPT SURG,DIV CARDIOTHORAC SURG,SAN ANTONIO,TX 78284. USAF,MED CTR,DEPT MED,SAN ANTONIO,TX 78284. USAF,MED CTR,DEPT PATHOL,SAN ANTONIO,TX 78284. RP BRYAN, CL (reprint author), UNIV TEXAS,AUDIE L MURPHY VET HOSP,HLTH SCI CTR,DEPT MED,DIV PULM DIS CRIT CARE MED,SAN ANTONIO,TX 78284, USA. NR 33 TC 12 Z9 12 U1 0 U2 0 PU AMER PHYSIOLOGICAL SOC PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 SN 8750-7587 J9 J APPL PHYSIOL JI J. Appl. Physiol. PD MAR PY 1994 VL 76 IS 3 BP 1232 EP 1241 PG 10 WC Physiology; Sport Sciences SC Physiology; Sport Sciences GA NB204 UT WOS:A1994NB20400037 PM 8005867 ER PT J AU PEACOCK, MD SCHENK, DA LAWRENCE, RA MORGAN, JA JENKINSON, SG AF PEACOCK, MD SCHENK, DA LAWRENCE, RA MORGAN, JA JENKINSON, SG TI ELIMINATION OF GLUTATHIONE-INDUCED PROTECTION FROM HYPERBARIC HYPEROXIA BY ACIVICIN SO JOURNAL OF APPLIED PHYSIOLOGY LA English DT Article DE GAMMA-GLUTAMYL TRANSPEPTIDASE; HYPERBARIC OXYGEN TOXICITY; RAT ID GLUTAMYL-TRANSFERASE TRANSPEPTIDASE; ISOLATED RAT HEPATOCYTES; OXYGEN-TOXICITY; SELENIUM DEFICIENCY; OXIDATIVE INJURY; EXOGENOUS GLUTATHIONE; PLASMA GLUTATHIONE; LUNG GLUTATHIONE; SMALL-INTESTINE; LYMPHOID-CELLS AB Glutathione (GSH) administered intraperitoneally significantly prolongs the time to initial seizure and survival time of rats exposed to hyperbaric hyperoxia (HBO). Acivicin is an antitumor antibiotic that is an inhibitor of gamma-glutamyl transpeptidase (GGT), an enzyme necessary for the breakdown and transport across cell membranes of GSH. To determine whether acivicin treatment alters GSH-induced protection from HBO, rats were dosed with 25 mg/kg of acivicin or vehicle 1 h before O-2 exposure at an inspired O-2 fraction at 1.0 at 4 ATA. Immediately before exposure, rats received GSH (1 mmol/kg) or vehicle. Time to seizure and time to death were recorded during exposure by direct observation. In separate groups of rats on the same dosing schedule, plasma GSH, renal GGT, and brain GGT were measured 15 min after the GSH injection without HBO exposure and 100 min after the beginning of HBO exposure. Renal GGT was decreased to 2.5% of control and brain GGT to 37% of control in the acivicin-dosed rats. Plasma GSH increased 3-fold in rats given acivicin alone, 52-fold in rats given GSH alone, and 84-fold in rats receiving both acivicin and GSH. Rats dosed with GSH alone had significantly prolonged times to seizure and death compared with all other groups. Rats dosed with GSH after receiving acivicin were not protected from HBO despite the large increase in plasma GSH that occurred in these animals. GSH treatment did not increase tissue GSH in lung, liver, or brain at 160 or 200 min of exposure. These data support the hypothesis that acivicin treatment abolishes GSH-induced protection from HBO and that elevations in plasma GSH do not protect acivicin-treated animals. C1 UNIV TEXAS,HLTH SCI CTR,BROOKE ARMY MED CTR,WILFORD HALL USAF MED CTR,LUNG METAB UNIT,SAN ANTONIO,TX. AUDIE L MURPHY VET AFFAIRS HOSP,SAN ANTONIO,TX 78284. NR 44 TC 12 Z9 12 U1 0 U2 1 PU AMER PHYSIOLOGICAL SOC PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 SN 8750-7587 J9 J APPL PHYSIOL JI J. Appl. Physiol. PD MAR PY 1994 VL 76 IS 3 BP 1279 EP 1284 PG 6 WC Physiology; Sport Sciences SC Physiology; Sport Sciences GA NB204 UT WOS:A1994NB20400044 PM 7911799 ER PT J AU PASTEL, RL MCIVER, JK MILLER, HC HAGER, GD AF PASTEL, RL MCIVER, JK MILLER, HC HAGER, GD TI MEASUREMENT OF THE DEACTIVATION OF BR-ASTERISK BY ATOMIC IODINE SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID LASER; INTERHALOGENS; FLUORESCENCE; IBR AB Laser photodissociation of IBr is used to observe the deactivation of spin-orbit excited Br(4(2)P(1/2)) (Br-*) by ground state atomic I(5(2)P(3/2)). The measured quenching rate constant is k(I)=1.9+/-0.2X10(-11)cm(3)/s. A total Br-* quenching rate due to both ground state Br(4(2)P(3/2)) and self-quenching by Br-* is observed following photodissociation of Br-2. The effective rate constant is more than 20 times smaller than k(I). The results are compared with Landau, Zener, Stueckelberg (LZS) calculations and other experiments. The consequence of the fast I atom quenching on photodissociation-pumped Br-* lasers is discussed. C1 USAF,PHILLIPS LAB,LASERS & IMAGING DIRECTORATE,KIRTLAND AFB,NM 87117. RP PASTEL, RL (reprint author), UNIV NEW MEXICO,DEPT PHYS,ALBUQUERQUE,NM 87131, USA. NR 21 TC 10 Z9 10 U1 0 U2 0 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 MAR 1 PY 1994 VL 100 IS 5 BP 3624 EP 3630 DI 10.1063/1.466349 PG 7 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA MY349 UT WOS:A1994MY34900024 ER PT J AU BLISS, DF HARRIS, M HORRIGAN, J HIGGINS, WM ARMINGTON, AF ADAMSKI, JA AF BLISS, DF HARRIS, M HORRIGAN, J HIGGINS, WM ARMINGTON, AF ADAMSKI, JA TI SYNTHESIS AND GROWTH-PROCESSES FOR ZINC GERMANIUM DIPHOSPHIDE SO JOURNAL OF CRYSTAL GROWTH LA English DT Article; Proceedings Paper CT 9th American Conference on Crystal Growth (ACCG-9) CY AUG 01-06, 1993 CL BALTIMORE, MD SP AMER ASSOC CRYSTAL GROWTH, USAF OFF SPONSORED REG, NASA, NATL SCI FDN, AESAR ALFA JOHNSON MATTHEY, LITTON SYST, AIRTRON DIV, APPL TECHNOL INC, CERES CORP, CLEVELAND CRYSTALS, CRYSTAL ASSOC INC, CRYSTAL TECHNOL INC, CRYSTALLOD INC, DELTRONIC CRYSTAL IND, ENGELHARD CORP, JOHNSON MATTHEY ELECTR, JOHNSON MATTHEY INC, LASER DIODE INC, LIGHTNING OPT, MR SEMICON INC, SAINT GOBAIN NORTON, SENSORS UNLIMITED INC, STRUERS LOGITECH, SUMITOMO ELECT CORP, VIRGO OPT AB Zinc germanium diphosphide (ZnGeP2) has useful properties for wavelength conversion devices in the mid-infrared (IR) spectral range. It has a high figure of merit as an optical parametric oscillator (OPO) and it also performs efficiently as a frequency doubler. Present crystal growth technology has been restricted to small volume charges because of the pressure limits of quartz containment vessels. The authors discuss a new approach to synthesis based on direct injection of phosphorus through a B2O3 encapsulant and reaction with the zinc germanium melt, resulting in synthesis of a large melt (350 g) of ZnGeP2. When crystallization is followed by cooling the congruent melt down through the alpha-beta transition temperature (952-degrees-C) as is typical for bulk growth processes, the result is the growth of partially disordered material. An alternative approach for the growth of ZnGeP2 below the phase transition temperature by chemical vapor transport (CVT) is discussed. The results of crystal growth below the alpha-beta phase transition temperature are reported. C1 PARKE MATH LABS INC,CARLISLE,MA 01741. RP BLISS, DF (reprint author), USAF,ROME LAB,BEDFORD,MA 01731, USA. NR 12 TC 7 Z9 8 U1 2 U2 5 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 1994 VL 137 IS 1-2 BP 145 EP 149 DI 10.1016/0022-0248(94)91263-7 PG 5 WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied SC Crystallography; Materials Science; Physics GA NC995 UT WOS:A1994NC99500027 ER PT J AU OSBORNE, RC ADAMS, RJ HSU, CS BANDA, SS AF OSBORNE, RC ADAMS, RJ HSU, CS BANDA, SS TI REDUCED-ORDER H-INFINITY COMPENSATOR DESIGN FOR AN AIRCRAFT CONTROL PROBLEM SO JOURNAL OF GUIDANCE CONTROL AND DYNAMICS LA English DT Article AB A recently introduced method for designing H(infinity) compensators based on minimal-order observers is considered for an aircraft control problem. The purpose of this paper is to bridge the gap between theory and application by presenting a practical utilization of a new design approach. Manual flight control systems for the lateral axis of a fighter aircraft are developed using both full-order and reduced-order compensators, and the results are compared. It is demonstrated that this method can be used to directly design reduced-order compensators that result in a system satisfying a closed-loop H. bound. C1 WRIGHT LAB,FLIGHT DYNAM DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RP OSBORNE, RC (reprint author), UNIV MASSACHUSETTS,DEPT ELECT & COMP ENGN,AMHERST,MA 01002, USA. NR 9 TC 5 Z9 5 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 1994 VL 17 IS 2 BP 341 EP 345 DI 10.2514/3.21203 PG 5 WC Engineering, Aerospace; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA NC789 UT WOS:A1994NC78900017 ER PT J AU FISCHER, WE AF FISCHER, WE TI A NATION OF FLIERS - GERMAN AVIATION AND THE POPULAR IMAGINATION - FRITZSCH,P SO JOURNAL OF INTERDISCIPLINARY HISTORY LA English DT Book Review RP FISCHER, WE (reprint author), USAF ACAD,COLORADO SPRINGS,CO 80840, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU MIT PRESS PI CAMBRIDGE PA 55 HAYWARD ST JOURNALS DEPT, CAMBRIDGE, MA 02142 SN 0022-1953 J9 J INTERDISCIPL HIST JI J. Interdiscip. Hist. PD SPR PY 1994 VL 24 IS 4 BP 726 EP 727 DI 10.2307/205655 PG 2 WC History SC History GA NA044 UT WOS:A1994NA04400030 ER PT J AU BIFANO, C HUBBARD, G EHLER, W AF BIFANO, C HUBBARD, G EHLER, W TI A COMPARISON OF THE FORM AND FUNCTION OF THE HUMAN, MONKEY, AND GOAT TEMPOROMANDIBULAR-JOINT SO JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY LA English DT Article ID SHEEP; MODEL C1 USAF,MED CTR,DEPT ORAL & MAXILLOFACIAL SURG,KEESLER AFB,MS 39534. SW RES FDN,SAN ANTONIO,TX. RP BIFANO, C (reprint author), WILFORD HALL USAF MED CTR,DEPT ORAL & MAXILLOFACIAL SURG,WHMC DSO,2200 BERGQUIST DR,SUITE 1,LACKLAND AFB,TX 78236, USA. NR 7 TC 17 Z9 17 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 MAR PY 1994 VL 52 IS 3 BP 272 EP 275 DI 10.1016/0278-2391(94)90298-4 PG 4 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA MY544 UT WOS:A1994MY54400017 PM 8308625 ER PT J AU CLARK, RH YODER, BA SELL, MS AF CLARK, RH YODER, BA SELL, MS TI PROSPECTIVE, RANDOMIZED COMPARISON OF HIGH-FREQUENCY OSCILLATION AND CONVENTIONAL VENTILATION IN CANDIDATES FOR EXTRACORPOREAL MEMBRANE-OXYGENATION SO JOURNAL OF PEDIATRICS LA English DT Article ID PERSISTENT PULMONARY-HYPERTENSION; NEONATAL RESPIRATORY-FAILURE; OXYGENATION; CRITERIA; NEWBORN; INFANTS; ECMO AB Objective: To compare the safety and efficacy of high-frequency oscillation (HFO) with conventional ventilation in the treatment of neonates with respiratory failure. Design: We conducted a multicenter, prospective, randomized trial. Patients were stratified according to pulmonary diagnosis and then were randomly selected for conventional ventilation or HFO. A balanced crossover design offered patients who met criteria of treatment failure a trial of the alternative mode of ventilation. Setting: Four tertiary, level 3 neonatal intensive care units accepting regional referrals for extracorporeal membrane oxygenation. Patients: Neonates were eligible for enrollment if their gestational age was >34 weeks, their birth weight was greater than or equal to 2 kg, they were <14 days of age, they required fractional inspired oxygen >0.50 and a mean airway pressure >0.98 kPa (10 cm H2O) to support adequate oxygenation, and they required a peak inspiratory pressure >2.9 kPa (30 cm H2O) and a rate >40 breaths per minute to support adequate ventilation. Exclusion criteria were lethal congenital anomalies, profound shock, need for cardiopulmonary resuscitation, and failure to obtain consent. Main results: Of 79 patients studied, 40 were assigned to conventional ventilation and 39 to HFO. Neonates randomly assigned to HFO required higher peak pressure (3.8 +/- 0.5 vs 3.3 +/- 0.8 kPa, 39 +/- 5 vs 34 +/- 8 cm H2O; p = 0.004) and more often met extracorporeal membrane oxygenation criteria (67% vs 40%; p = 0.03) at study entry than did those given conventional ventilation. Twenty-four patients (60%) assigned to conventional ventilation met treatment failure criteria compared with 17 (44%) of those assigned to HFO (not significant). Of the 24 patients in whom conventional ventilation failed, 15 (63%) responded to HFO; 4 (23%) of the 17 in whom HFO failed responded to conventional ventilation (p = 0.03). There were no differences between the two groups with respect to outcome, need for extracorporeal membrane oxygenation, or complications. Conclusions: We conclude that HFO is a safe and effective rescue technique in the treatment of neonates with respiratory failure in whom conventional ventilation fails. C1 WILFORD HALL USAF MED CTR, DEPT PEDIAT, SAN ANTONIO, TX 78236 USA. ST LUKES REG MED CTR, BOISE, ID USA. RP CLARK, RH (reprint author), EMORY UNIV, SCH MED, DEPT PEDIAT, 2040 RIDGEWOOD DR NE, ATLANTA, GA 30322 USA. NR 12 TC 138 Z9 145 U1 1 U2 1 PU MOSBY-ELSEVIER PI NEW YORK PA 360 PARK AVENUE SOUTH, NEW YORK, NY 10010-1710 USA SN 0022-3476 EI 1097-6833 J9 J PEDIATR-US JI J. Pediatr. PD MAR PY 1994 VL 124 IS 3 BP 447 EP 454 DI 10.1016/S0022-3476(94)70374-4 PG 8 WC Pediatrics SC Pediatrics GA NA035 UT WOS:A1994NA03500020 PM 8120720 ER PT J AU CESPEDES, RD CABALLERO, RL PERETSMAN, SJ THOMPSON, IM AF CESPEDES, RD CABALLERO, RL PERETSMAN, SJ THOMPSON, IM TI CRYPTIC PRESENTATIONS OF GERM-CELL TUMORS SO JOURNAL OF THE AMERICAN COLLEGE OF SURGEONS LA English DT Article AB The records of 636 patients who were treated for carcinoma of the testis were reviewed. Of these patients, 61 (9.6 percent) presented with extratesticular complaints. In order of decreasing frequency, the complaints were pain (abdominal, back or groin), gynecomastia or mastodynia, pulmonary complaints, enlarged lymph nodes or a nontesticular mass, swelling of the lower extremity or neurologic changes. A substantial number of these patients were initially misdiagnosed and underwent a surgical procedure. Of importance, most of these patients had either abnormal testicular examination results, elevated markers or a history of cryptorchidism. The data suggest that patients with germ cell tumors, even when presenting with cryptic complaints, can readily be diagnosed if a high level of suspicion is maintained, a careful testicular examination is performed and tumor markers obtained. This frequently makes a diagnostic abdominal exploration or other surgical interventions unnecessary. C1 BROOKE ARMY MED CTR,DEPT UROL,SAN ANTONIO,TX. RP CESPEDES, RD (reprint author), WILFORD HALL USAF MED CTR,DEPT UROL,SAN ANTONIO,TX, USA. NR 4 TC 3 Z9 3 U1 0 U2 0 PU AMER COLL SURGEONS PI CHICAGO PA 54 EAST ERIE ST, CHICAGO, IL 60611 SN 1072-7515 J9 J AM COLL SURGEONS JI J. Am. Coll. Surg. PD MAR PY 1994 VL 178 IS 3 BP 261 EP 265 PG 5 WC Surgery SC Surgery GA MZ644 UT WOS:A1994MZ64400010 PM 8149018 ER PT J AU LOOK, DC FANG, ZQ LOOK, JW SIZELOVE, JR AF LOOK, DC FANG, ZQ LOOK, JW SIZELOVE, JR TI HOPPING CONDUCTION IN MOLECULAR-BEAM EPITAXIAL GAAS GROWN AT VERY-LOW TEMPERATURES SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY LA English DT Article ID DEPENDENCE AB Conductivity and Hall effect measurements have been performed on 2 mum thick molecular beam epitaxial GaAs layers grown at very low substrate temperatures, 200 to 400-degrees-C. For growth temperatures below 300-degrees-C, the conduction is dominated by hopping between arsenic antisite defects of concentrations up to 10(-20) cm-3. Below measurement temperatures of about 130 K, the hopping conduction can be quenched by strong IR light illumination, because the antisite then becomes metastable. The antisite has a thermal activation energy of 0.65 +/- 0.01 eV, and thus is not identical to the famous EL2. Both nearest-neighbor and variable-range hopping mechanisms are considered in the analysis. C1 WRIGHT LAB,SOLID STATE ELECTR DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RP LOOK, DC (reprint author), WRIGHT STATE UNIV,UNIV RES CTR,DAYTON,OH 45435, USA. NR 16 TC 19 Z9 19 U1 0 U2 5 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 MAR PY 1994 VL 141 IS 3 BP 747 EP 750 DI 10.1149/1.2054804 PG 4 WC Electrochemistry; Materials Science, Coatings & Films SC Electrochemistry; Materials Science GA NB626 UT WOS:A1994NB62600037 ER PT J AU CARLIN, RT FULLER, J HEDENSKOOG, M AF CARLIN, RT FULLER, J HEDENSKOOG, M TI REVERSIBLE LITHIUM-GRAPHITE ANODES IN ROOM-TEMPERATURE CHLOROALUMINATE MELTS SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY LA English DT Letter ID MOLTEN-SALTS AB Reduction of a graphite rod electrode in an AlCl3:EMIC:LiCl room-temperature molten salts leads to reversible lithium intercalation into the reduced graphite lattice. The cycling efficiency of the Li-graphite electrode ranges from 80 to 90% for current densities of 0.2 to 1 mA cm-2. In the staircase cyclic voltammogram the oxidation process occurs at a potential approximately 1 V positive of the reduction process. C1 USAF ACAD,DEPT CHEM,COLORADO SPRINGS,CO 80840. RP CARLIN, RT (reprint author), USAF ACAD,FRANK J SEILER RES LAB,COLORADO SPRINGS,CO 80840, USA. NR 6 TC 26 Z9 26 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 MAR PY 1994 VL 141 IS 3 BP L21 EP L22 DI 10.1149/1.2054823 PG 2 WC Electrochemistry; Materials Science, Coatings & Films SC Electrochemistry; Materials Science GA NB626 UT WOS:A1994NB62600002 ER PT J AU WANG, Y BARUCH, N WANG, WI CHENEY, ME HUANG, CI SCHERER, RL AF WANG, Y BARUCH, N WANG, WI CHENEY, ME HUANG, CI SCHERER, RL TI ALGAAS/GE/GAAS HETEROSTRUCTURES GROWN BY MOLECULAR-BEAM EPITAXY SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B LA English DT Article; Proceedings Paper CT 13th North American Conference on Molecular-Beam Epitaxy CY SEP 13-15, 1993 CL STANFORD UNIV, STANFORD, CA SP AMER VACUUM SOC HO STANFORD UNIV ID ON-NONPOLAR EPITAXY; GAAS; ALGAAS; SURFACES; SI(100); GE AB We report the comparison studies of molecular beam epitaxial growth of AlGaAs/Ge/GaAs heterostructures on differently oriented GaAs substrates. We have investigated the molecular beam epitaxial growth of Ge on GaAs, and GaAs and AlGaAs on Ge epitaxial layers with the aim of obtaining device-quality interfaces of AlGaAs and GaAs epilayers on Ge which are free of antiphase domains. Our results show that the junctions grown on (311)B oriented substrates have better electrical characteristics than those grown on (100) oriented substrates. This is due to the absence of antiphase domains and less interface charge in heterostructures grown on (311)B substrates. C1 WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. RP WANG, Y (reprint author), COLUMBIA UNIV,DEPT ELECT ENGN,NEW YORK,NY 10027, USA. NR 12 TC 0 Z9 0 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 1071-1023 J9 J VAC SCI TECHNOL B JI J. Vac. Sci. Technol. B PD MAR-APR PY 1994 VL 12 IS 2 BP 1300 EP 1302 DI 10.1116/1.587028 PG 3 WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology; Physics, Applied SC Engineering; Science & Technology - Other Topics; Physics GA NG711 UT WOS:A1994NG71100176 ER PT J AU WEHRLEEINHORN, RJ WEHRLEEINHORN, JL AF WEHRLEEINHORN, RJ WEHRLEEINHORN, JL TI HUMAN-RESOURCE ENHANCEMENT THROUGH MEDIATION TRAINING SO LABOR LAW JOURNAL LA English DT Article ID DISPUTE RESOLUTION; EMPLOYEE C1 WRIGHT STATE UNIV,DAYTON,OH 45435. RP WEHRLEEINHORN, RJ (reprint author), USAF,AIR FORCE INST TECHNOL,SCH SYST & LOGIST,WRIGHT PATTERSON AFB,OH 45433, USA. NR 26 TC 0 Z9 0 U1 0 U2 1 PU COMMERCE CLEARING HOUSE INC PI CHICAGO PA 4025 W PETERSON AVE, CHICAGO, IL 60646 SN 0023-6586 J9 LABOR LAW J JI Labor Law J. PD MAR PY 1994 VL 45 IS 3 BP 157 EP 166 PG 10 WC Industrial Relations & Labor; Law SC Business & Economics; Government & Law GA ND945 UT WOS:A1994ND94500003 ER PT J AU ANDERSON, DS AF ANDERSON, DS TI PICKETTS CHARGE - EYEWITNESS ACCOUNTS - ROLLINS,R SO MILITARY LAW REVIEW LA English DT Book Review C1 USAF,JUDGE ADVOCATE GEN DEPT,WASHINGTON,DC. NR 1 TC 1 Z9 1 U1 0 U2 0 PU JUDGE ADVOCATE GENERALS SCHOOL PI CHARLOTTESVILLE PA US ARMY, CHARLOTTESVILLE, VA 22903-1781 SN 0026-4040 J9 MIL LAW REV JI Milit. Law Rev. PD SPR PY 1994 VL 144 BP 168 EP 174 PG 7 WC Law SC Government & Law GA QF335 UT WOS:A1994QF33500007 ER PT J AU MEFFORD, VK AF MEFFORD, VK TI NO TROPHY, NO SWORD - AN AMERICAN VOLUNTEER IN THE ISRAELI-AIR-FORCE DURING THE 1948-WAR-OF-INDEPENDENCE - LIVINGSTON,H SO MILITARY LAW REVIEW LA English DT Book Review C1 USAF,JUDGE ADVOCATE GEN CORPS,WASHINGTON,DC. NR 1 TC 1 Z9 1 U1 0 U2 0 PU JUDGE ADVOCATE GENERALS SCHOOL PI CHARLOTTESVILLE PA US ARMY, CHARLOTTESVILLE, VA 22903-1781 SN 0026-4040 J9 MIL LAW REV JI Milit. Law Rev. PD SPR PY 1994 VL 144 BP 180 EP 183 PG 4 WC Law SC Government & Law GA QF335 UT WOS:A1994QF33500010 ER PT J AU RHODES, MK AF RHODES, MK TI EARLY DISCHARGE OF MOTHERS AND INFANTS FOLLOWING VAGINAL CHILDBIRTH AT THE UNITED-STATES-AIR-FORCE ACADEMY - A 3-YEAR STUDY SO MILITARY MEDICINE LA English DT Article AB Since opening the Air Force's first in-hospital birth center, the United States Air Force Academy Hospital has followed a policy of 24-hour discharge of mothers and babies-a major paradigm shift in traditional military treatment facility practice. This study was conducted to evaluate this change. Records were reviewed of all vaginal births in the first 3 years of operation. Factors considered included demographic data, parity, gestational age, and complicating factors, both mother and infant. Postpartum bed days were reduced by 48%, the maternal readmission rate was 0.59%, and the infant readmission rate was 0.29%. It is the opinion of this author that 24-hour discharge is safe, cost effective, promotes access to care, and is desirable for patient satisfaction. With 1,340 subjects evaluated, the results of this study are provided to encourage and support a change in traditional practice patterns in military treatment facilities. RP RHODES, MK (reprint author), USAF ACAD,DEPT OBSTET & GYNECOL,COLORADO SPRINGS,CO 80840, USA. NR 0 TC 18 Z9 18 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 1994 VL 159 IS 3 BP 227 EP 230 PG 4 WC Medicine, General & Internal SC General & Internal Medicine GA NJ938 UT WOS:A1994NJ93800018 PM 8041470 ER PT J AU GRINKEMEYER, MD LABARRE, RC YASZEMSKI, MJ KLUCZNIK, RP BLATT, SP DREHNER, DM AF GRINKEMEYER, MD LABARRE, RC YASZEMSKI, MJ KLUCZNIK, RP BLATT, SP DREHNER, DM TI A CASE OF POTTS DISEASE IN A 20-YEAR-OLD MILITARY DEPENDENT SO MILITARY MEDICINE LA English DT Article AB Tuberculous spondylitis (Pott's disease) is an uncommon complication of Mycobacterium tuberculosis infection that may have serious consequences if the diagnosis is missed or delayed. A case of tuberculous spondylitis in a military dependent is presented. Clinical presentation, radiologic findings, laboratory findings, and treatment are discussed. RP GRINKEMEYER, MD (reprint author), USAF,MED CTR,DEPT PATHOL,WILFORD HALL,LACKLAND AFB,TX 78236, 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 1994 VL 159 IS 3 BP 257 EP 260 PG 4 WC Medicine, General & Internal SC General & Internal Medicine GA NJ938 UT WOS:A1994NJ93800030 PM 8041480 ER PT J AU EVERSON, ME AF EVERSON, ME TI ADVANCED READER OF MODERN CHINESE - CHINA OWN CRITICS - CHOU,CP, CHIANG,J, CHAO,DL SO MODERN LANGUAGE JOURNAL LA English DT Book Review RP EVERSON, ME (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 1994 VL 78 IS 1 BP 114 EP 115 DI 10.2307/329271 PG 2 WC Education & Educational Research; Linguistics SC Education & Educational Research; Linguistics GA NC898 UT WOS:A1994NC89800027 ER PT J AU SHIKORA, SA MUSKAT, PC AF SHIKORA, SA MUSKAT, PC TI PROTEIN-SPARING MODIFIED-FAST TOTAL PARENTERAL-NUTRITION FORMULATION FOR A CRITICALLY ILL MORBIDLY OBESE PATIENT SO NUTRITION LA English DT Article ID DIABETES-MELLITUS; SURGICAL PATIENTS; ABDOMINAL-TRAUMA; HOST DEFENSE; GLUCOSE; HEALTH; MALNUTRITION; MORTALITY; THERAPY C1 WILFORD HALL USAF MED CTR,NUTR SUPPORT SERV,LACKLAND AFB,TX 78236. RP SHIKORA, SA (reprint author), WILFORD HALL USAF MED CTR,PSSG,DEPT SURG,LACKLAND AFB,TX 78236, USA. NR 48 TC 5 Z9 5 U1 0 U2 0 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 0899-9007 J9 NUTRITION JI Nutrition PD MAR-APR PY 1994 VL 10 IS 2 BP 155 EP 158 PG 4 WC Nutrition & Dietetics SC Nutrition & Dietetics GA NH756 UT WOS:A1994NH75600008 PM 8025370 ER PT J AU SCHELONKA, RL ASCHER, DP MCMAHON, DP DREHNER, DM KUSKIE, MR AF SCHELONKA, RL ASCHER, DP MCMAHON, DP DREHNER, DM KUSKIE, MR TI CATHETER-RELATED SEPSIS CAUSED BY MYCOBACTERIUM-AVIUM COMPLEX SO PEDIATRIC INFECTIOUS DISEASE JOURNAL LA English DT Note DE MYCOBACTERIUM AVIUM COMPLEX; CATHETER-RELATED SEPSIS; NONTUBERCULOUS MYCOBACTERIA; CENTRAL VENOUS CATHETER; CATHETER INFECTION ID SEMIQUANTITATIVE CULTURE; INFECTIONS; BACTEREMIA; DIAGNOSIS C1 WILFORD HALL USAF MED CTR,DEPT PATHOL,LACKLAND AFB,TX 78236. RP SCHELONKA, RL (reprint author), WILFORD HALL USAF MED CTR,DEPT PEDIAT,LACKLAND AFB,TX 78236, USA. NR 14 TC 14 Z9 14 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 MAR PY 1994 VL 13 IS 3 BP 236 EP 238 PG 3 WC Immunology; Infectious Diseases; Pediatrics SC Immunology; Infectious Diseases; Pediatrics GA NA577 UT WOS:A1994NA57700017 PM 8177637 ER PT J AU REE, MJ AF REE, MJ TI PSYCHOLOGICAL-TESTING - AN INSIDE VIEW - ZEIDNER,M, MOST,R SO PERSONNEL PSYCHOLOGY LA English DT Book Review RP REE, MJ (reprint author), USAF,ARMSTRONG LAB,HUMAN RESOURCES DIRECTORATE,BROOKS AFB,TX 78235, USA. NR 4 TC 0 Z9 0 U1 0 U2 0 PU PERSONNEL PSYCHOLOGY INC PI BOWLING GREEN PA 745 HASKINS ROAD, SUITE A, BOWLING GREEN, OH 43402 SN 0031-5826 J9 PERS PSYCHOL JI Pers. Psychol. PD SPR PY 1994 VL 47 IS 1 BP 198 EP 201 PG 4 WC Psychology, Applied; Management SC Psychology; Business & Economics GA NB478 UT WOS:A1994NB47800017 ER PT J AU WIESEL, WE AF WIESEL, WE TI MODAL FEEDBACK-CONTROL ON CHAOTIC TRAJECTORIES SO PHYSICAL REVIEW E LA English DT Article ID DYNAMICAL-SYSTEMS AB The definition of Lyapunov exponents over a finite time interval is reviewed. It is shown that a bounded, invertible coordinate transformation exists on the tangent space which diagonalizes the uncontrolled system, thus introducing modal variables for the system. An algorithm is given which allows a Lyapunov exponent to be deterministically changed to any other real value (at least over a finite trajectory arc), while leaving all other Lyapunov exponents unchanged. This cannot be done in general with a constant gain, but can be done if the gain is a function of time. Iteration of this algorithm allows for alteration of any subset of the Lyapunov exponent spectrum. A numerical example based on the Lorenz system is given. RP WIESEL, WE (reprint author), USAF,INST TECHNOL,2950 P ST,WRIGHT PATTERSON AFB,OH 45433, USA. NR 15 TC 12 Z9 12 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1063-651X J9 PHYS REV E JI Phys. Rev. E PD MAR PY 1994 VL 49 IS 3 BP 1990 EP 1996 DI 10.1103/PhysRevE.49.1990 PG 7 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA NC465 UT WOS:A1994NC46500030 ER PT J AU JORDAN, DL SANCHEZ, PM AF JORDAN, DL SANCHEZ, PM TI TRADITIONAL VERSUS TECHNOLOGY-AIDED INSTRUCTION - THE EFFECTS OF VISUAL STIMULUS IN THE CLASSROOM SO PS-POLITICAL SCIENCE & POLITICS LA English DT Article; Proceedings Paper CT 1992 Annual Meeting of the American-Political-Science-Association CY 1992 CL CHICAGO, IL SP AMER POLIT SCI ASSOC C1 LOYOLA UNIV,CHICAGO,IL 60611. RP JORDAN, DL (reprint author), USAF ACAD,COLORADO SPRINGS,CO 80840, USA. NR 3 TC 5 Z9 5 U1 0 U2 0 PU AMER POLITICAL SCIENCE ASSOC PI WASHINGTON PA 1527 NEW HAMPSHIRE N W, WASHINGTON, DC 20036 SN 1049-0965 J9 PS JI PS-Polit. Sci. Polit. PD MAR PY 1994 VL 27 IS 1 BP 64 EP 67 DI 10.2307/420461 PG 4 WC Political Science SC Government & Law GA NB953 UT WOS:A1994NB95300017 ER PT J AU DUFFY, JD CAMPBELL, J AF DUFFY, JD CAMPBELL, J TI BUPROPION FOR THE TREATMENT OF FATIGUE ASSOCIATED WITH MULTIPLE-SCLEROSIS SO PSYCHOSOMATICS LA English DT Letter C1 WILFORD HALL USAF MED CTR,SAN ANTONIO,TX. RP DUFFY, JD (reprint author), MED COLL PENN,ALLEGHENY NEUROPSYCHIAT INST,PITTSBURGH,PA, USA. NR 5 TC 10 Z9 10 U1 0 U2 1 PU AMER PSYCHIATRIC ASSOCIATION PI WASHINGTON PA 1400 K ST NW, WASHINGTON, DC 20005 SN 0033-3182 J9 PSYCHOSOMATICS JI Psychosomatics PD MAR-APR PY 1994 VL 35 IS 2 BP 170 EP 171 PG 2 WC Psychiatry; Psychology SC Psychiatry; Psychology GA MY142 UT WOS:A1994MY14200015 PM 8171179 ER PT J AU TIRMAN, PFJ FELLER, JF JANZEN, DL PETERFY, CG BERGMAN, AG AF TIRMAN, PFJ FELLER, JF JANZEN, DL PETERFY, CG BERGMAN, AG TI ASSOCIATION OF GLENOID LABRAL CYSTS WITH LABRAL TEARS AND GLENOHUMERAL INSTABILITY - RADIOLOGIC FINDINGS AND CLINICAL-SIGNIFICANCE SO RADIOLOGY LA English DT Article DE SHOULDER, ABNORMALITIES; SHOULDER, INJURIES; SHOULDER, MR ID SUPRASCAPULAR-NERVE ENTRAPMENT; MR AB PURPOSE: To determine the relationship between labral cysts and labral Mars and glenohumeral instability. MATERIALS AND METHODS: Magnetic resonance (MR), clinical, and arthroscopic examinations of the shoulder and the surgical findings of 20 patients were correlated and retrospectively analyzed. A cystic-appearing mass adjacent to the labrum was the selection criterion for inclusion. RESULTS: MR imaging showed labral tear intimately associated with cystic-appearing mass in these 20 patients. The tear and cyst complex was located anteriorly in two patients, posteriorly in nine, and superiorly in nine. The mass extended into the spinoglenoid notch in six patients, the suprascapular notch in three, and both notches in four. physical examination showed glenohumeral instability in the direction of the labral tear and cystic-appearing mass in 11 patients (55%). Findings at intraarticular surgery, performed in eight patients, confirmed a labral tear with communication between the joint space and the cyst. CONCLUSION: Glenoid labral cysts are associated with glenoid labral tears and shoulder instability. C1 USAF,DAVID GRANT MED CTR,DEPT RADIOL,TRAVIS AFB,CA. UNIV CALIF SAN FRANCISCO,DEPT RADIOL,SAN FRANCISCO,CA 94143. STANFORD UNIV,SCH MED,DEPT RADIOL,STANFORD,CA 94305. RP TIRMAN, PFJ (reprint author), SAN FRANCISCO MAGNET RESONANCE CTR,3333 CALIF ST,STE 105,SAN FRANCISCO,CA 94118, USA. NR 27 TC 132 Z9 135 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 1994 VL 190 IS 3 BP 653 EP 658 PG 6 WC Radiology, Nuclear Medicine & Medical Imaging SC Radiology, Nuclear Medicine & Medical Imaging GA MX698 UT WOS:A1994MX69800010 PM 8115605 ER PT J AU VALLEY, MA HERMAN, NL AF VALLEY, MA HERMAN, NL TI RESPONSE TO SUPRAVENTRICULAR TACHYCARDIA IN A PARTURIENT UNDER SPINAL-ANESTHESIA SO REGIONAL ANESTHESIA LA English DT Letter RP VALLEY, MA (reprint author), WILFORD HALL USAF MED CTR,DEPT ANESTHESIOL,LACKLAND AFB,TX 78236, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU CHURCHILL LIVINGSTONE INC MEDICAL PUBLISHERS PI NEW YORK PA 650 AVENUE OF THE AMERICAS, NEW YORK, NY 10011 SN 0146-521X J9 REGION ANESTH JI Reg. Anesth. PD MAR-APR PY 1994 VL 19 IS 2 BP 150 EP 151 PG 2 WC Anesthesiology SC Anesthesiology GA NC460 UT WOS:A1994NC46000013 ER PT J AU CUMMINS, AG AF CUMMINS, AG TI STEELTOWN, USSR - SOVIET-SOCIETY IN THE GORBACHEV ERA - KOTKIN,S SO RUSSIAN HISTORY-HISTOIRE RUSSE LA English DT Book Review RP CUMMINS, AG (reprint author), USAF ACAD,COLORADO SPRINGS,CO 80840, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU CHARLES SCHLACKS JR PUBL PI LOS ANGELES PA CTR MULTIETHNIC & TRANS STUD UNIV SOUTHERN CALIF KERCKHOFF HALL/734 W. ADAMS BD, LOS ANGELES, CA 90089-7724 SN 0094-288X J9 RUSS HIST-HIST RUSS JI Russ. Hist.-Hist. Russe PD SPR PY 1994 VL 21 IS 1 BP 101 EP 103 PG 3 WC History SC History GA MC554 UT WOS:A1994MC55400016 ER PT J AU CHINJE, E KENTISH, P JARNOT, B GEORGE, M GIBSON, G AF CHINJE, E KENTISH, P JARNOT, B GEORGE, M GIBSON, G TI INDUCTION OF THE CYP4A SUBFAMILY BY PERFLUORODECANOIC ACID - THE RAT AND THE GUINEA-PIG AS SUSCEPTIBLE AND NON-SUSCEPTIBLE SPECIES SO TOXICOLOGY LETTERS LA English DT Article DE CYTOCHROME-P450 INDUCTION; CYP4A SUBFAMILY; PEROXISOME PROLIFERATORS; PERFLUORODECANOIC ACID; FATTY ACID HYDROXYLASES ID PEROXISOME PROLIFERATION; GENE FAMILY; FATTY-ACIDS; CYTOCHROME-P-450; CIPROFIBRATE; TOXICITY AB Male Wistar rats and male Duncan Hartley guinea pigs were treated with one i.p. dose of perfluorodecanoic acid (PFDA) resulting in pronounced hepatomegaly in the rat but not the guinea pig. PFDA treatment also resulted in a 4-fold induction of lauric acid 12-hydroxylase activity in the rat but not the guinea pig, indicating induction of the CYP4A subfamily of isoenzymes. Consistent with this latter conclusion, Western blot analysis of rat liver microsomes using an antibody to CYP4A1 and Northern blot analysis of RNA extracts using a CYP4A1 cDNA probe, revealed PFDA-dependent induction of the CYP4A subfamily in the rat but not the guinea pig. Taken collectively, our data has demonstrated that PFDA, like other peroxisome proliferators, is also a CYP4A inducer and conforms to the well-documented species specificity in induction for this class of compound. C1 UNIV SURREY,SCH BIOL SCI,MOLEC TOXICOL GRP,GUILDFORD GU2 5XH,SURREY,ENGLAND. USAF,DIV TOXICOL,HARRY G ARMSTRONG AEROSP MED RES LAB,WRIGHT PATTERSON AFB,OH 45433. NR 15 TC 20 Z9 21 U1 0 U2 0 PU ELSEVIER SCI IRELAND LTD PI CLARE PA CUSTOMER RELATIONS MANAGER, BAY 15, SHANNON INDUSTRIAL ESTATE CO, CLARE, IRELAND SN 0378-4274 J9 TOXICOL LETT JI Toxicol. Lett. PD MAR PY 1994 VL 71 IS 1 BP 69 EP 75 DI 10.1016/0378-4274(94)90200-3 PG 7 WC Toxicology SC Toxicology GA NC202 UT WOS:A1994NC20200008 PM 8140591 ER PT J AU SUTHERLAND, RL TONDIGLIA, VP NATARAJAN, LV BUNNING, TJ ADAMS, WW AF SUTHERLAND, RL TONDIGLIA, VP NATARAJAN, LV BUNNING, TJ ADAMS, WW TI ELECTRICALLY SWITCHABLE VOLUME GRATINGS IN POLYMER-DISPERSED LIQUID-CRYSTALS SO APPLIED PHYSICS LETTERS LA English DT Article ID LIGHT-SCATTERING AB We report electrical switching of the diffraction efficiency in volume Bragg gratings written holographically in polymer-dispersed liquid crystals (PDLCs). Scanning electron microscopy confirms the volume nature of the gratings and shows that they consist of periodic PDLC planes. The diffraction efficiency can be switched from a high value (approximately 50%) to a value near zero at fields approximately 11 V/mum. C1 WRIGHT LAB,MAT DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RP SUTHERLAND, RL (reprint author), SCI APPLICAT INT CORP,DAYTON,OH 45431, USA. RI Adams, Wade/A-7305-2010 NR 14 TC 369 Z9 379 U1 1 U2 32 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 FEB 28 PY 1994 VL 64 IS 9 BP 1074 EP 1076 DI 10.1063/1.110936 PG 3 WC Physics, Applied SC Physics GA MZ337 UT WOS:A1994MZ33700006 ER PT J AU GLASS, JD SELIM, M REA, MA AF GLASS, JD SELIM, M REA, MA TI MODULATION OF LIGHT-INDUCED C-FOS EXPRESSION IN THE SUPRACHIASMATIC NUCLEI BY 5-HT1A RECEPTOR AGONISTS SO BRAIN RESEARCH LA English DT Article DE SCN; SEROTONIN; 8-OH-DPAT; BUSPIRONE; NAN-190; TRYPTOPHAN; FOS; LIGHT; CIRCADIAN RHYTHM; HAMSTER ID OPTIC-NERVE STIMULATION; SEROTONIN RELEASE; CIRCADIAN-RHYTHMS; PHOTIC REGULATION; RAT HYPOTHALAMUS; RUNNING ACTIVITY; GENE-EXPRESSION; NEURONS; HAMSTER; PHASE AB In previous studies, we showed that light-induced Fos protein expression in the ventrolateral SCN is markedly inhibited by the nonselective serotonergic, quipazine. The present experiments were undertaken to characterize the effects of various serotonin (5-HT) receptor ligands on photic signalling in the SCN. The extent of expression of light-induced Fos-like immunoreactivity (Fos-LI) in the SCN was used as a marker for this response. Exposure of hamsters to a light pulse delivered during the latter part of the dark phase (7 h after lights-off; LD 14:10) elicited an intense expression of Fos-LI in nuclei of cells situated principally in the ventrolateral region of the SCN. Pretreatment with an i.p. injection of the 5-HT1A receptor agonists, 8-OH-DPAT or buspirone, 30 min before the light pulse significantly inhibited the photic expression of Fos-LI (maximal suppression 45.7 +/- 8.1 and 43.0 +/- 1.3%, respectively, both P < 0.01 vs. vehicle controls). Treatment with the 5-HT1A receptor antagonist, NAN-190, administered 15 min before 8-OH-DPAT injection prevented the inhibitory effect of 8-OH-DPAT (100.9 +/- 6.0% vs. controls, P > 0.9). Pretreatment with the 5-HT1B receptor agonist, TFMPP, caused a small but significant suppression of Fos-LI (14.8 +/- 3.5% vs. controls, P < 0.05). In contrast to the significant 5-HT1 receptor agonist effects, pretreatment with 5-HT, or 5-HT3 receptor agonists, alpha-methyl-5-HT and 1-phenylbiguanide had little suppressive effect on Fos-LI (7.9 +/- 2.1 and 13.0 +/- 5.0% suppression, respectively, both P > 0.1 vs. controls). In animals receiving treatments to raise the extracellular concentration of endogenous 5-HT, including pretreatment with L-tryptophan alone or in combination with the 5-HT releaser, fenfluramine, and the type A monoamine oxidase inhibitor, harmaline, light-induced Fos-LI was reduced by 33.8 +/- 4.5 and 53.2 +/- 4.8%, respectively (P < 0.05). Together, these findings support a role for 5-HT in regulating photic signal transduction in the SCN and suggest that this is mediated principally by 5-HT1A receptors. Moreover, the finding that light-induced Fos-LI in the SCN is inhibited by L-tryptophan raises the possibility that dietary tryptophan could modulate the entraining effect of light on pacemaker activity. C1 ARMSTRONG LAB,CIRCADIAN NEUROBIOL RES GRP,BROOKS AFB,TX 78235. RP GLASS, JD (reprint author), KENT STATE UNIV,DEPT BIOL SCI,KENT,OH 44242, USA. NR 53 TC 76 Z9 78 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0006-8993 J9 BRAIN RES JI Brain Res. PD FEB 28 PY 1994 VL 638 IS 1-2 BP 235 EP 242 PG 8 WC Neurosciences SC Neurosciences & Neurology GA MZ355 UT WOS:A1994MZ35500030 PM 8199864 ER PT J AU BRAUER, ML DAJANI, I KESTER, JJ AF BRAUER, ML DAJANI, I KESTER, JJ TI INDUCED 2ND-HARMONIC GENERATION IN PLANAR WAVE-GUIDES BY AN EXTERNALLY APPLIED PERIODIC DC ELECTRIC-FIELD - EFFICIENCY AS A FUNCTION OF FIELD STRUCTURE SO ELECTRONICS LETTERS LA English DT Article DE OPTICAL HARMONIC GENERATION; OPTICAL WAVE-GUIDE THEORY; FINITE ELEMENT ANALYSIS AB The efficiency of second-harmonic generation (SHG) induced by an externally applied periodic DC electric field was investigated. A finite element method was used to find the static electric field due to different interdigitated electrode structures. The resulting fields were used to calculate the overlap integrals which determine the SHG efficiency in an optical waveguide. The results show that there are reasonable differences in SHG efficiencies for the structures investigated. RP BRAUER, ML (reprint author), USAF ACAD,FRANK J SEILER RES LAB,COLORADO SPRINGS,CO 80840, USA. NR 5 TC 6 Z9 6 U1 0 U2 0 PU IEE-INST ELEC ENG PI HERTFORD PA MICHAEL FARADAY HOUSE SIX HILLS WAY STEVENAGE, HERTFORD, ENGLAND SG1 2AY SN 0013-5194 J9 ELECTRON LETT JI Electron. Lett. PD FEB 17 PY 1994 VL 30 IS 4 BP 297 EP 298 DI 10.1049/el:19940193 PG 2 WC Engineering, Electrical & Electronic SC Engineering GA MY754 UT WOS:A1994MY75400017 ER PT J AU MARTIN, EA VACCARO, K DAUPLAISE, HM WATERS, W LORENZO, JP AF MARTIN, EA VACCARO, K DAUPLAISE, HM WATERS, W LORENZO, JP TI INDIUM-PHOSPHIDE MISIFET PROCESSING USING WET CHEMICAL SURFACE PRETREATMENTS AND EVAPORATED THIN SILICON INTERLAYERS SO ELECTRONICS LETTERS LA English DT Article DE METAL-INSULATOR SEMICONDUCTOR DEVICES; PASSIVATION ID INP AB The use of thin silicon films with wet chemical surface pretreatment for indium phosphide-insulator interface stabilisation of MiSiFETs is investigated. InP MISiFETs prepared with the silicon interlayers deposited after H3PO4 surface pre-treatment show a decrease in hysteresis, flat band voltage shift, and interface state density. Samples similarly prepared but using an HF surface pre-treatment show a higher threshold voltage shift attributable to high fixed and interface charge density. These effects are consistent with existing models describing the interaction of the silicon with the native oxide of indium phosphide. RP MARTIN, EA (reprint author), USAF,ROME LAB,BEDFORD,MA 01731, USA. NR 8 TC 0 Z9 0 U1 0 U2 0 PU IEE-INST ELEC ENG PI HERTFORD PA MICHAEL FARADAY HOUSE SIX HILLS WAY STEVENAGE, HERTFORD, ENGLAND SG1 2AY SN 0013-5194 J9 ELECTRON LETT JI Electron. Lett. PD FEB 17 PY 1994 VL 30 IS 4 BP 364 EP 365 DI 10.1049/el:19940209 PG 2 WC Engineering, Electrical & Electronic SC Engineering GA MY754 UT WOS:A1994MY75400062 ER PT J AU BLATT, SP HENDRIX, CW AF BLATT, SP HENDRIX, CW TI DELAYED-TYPE HYPERSENSITIVITY AND AIDS - RESPONSE SO ANNALS OF INTERNAL MEDICINE LA English DT Letter ID IMMUNODEFICIENCY RP BLATT, SP (reprint author), USAF,MED CTR,LACKLAND AFB,TX 78236, USA. RI Hendrix, Craig/G-4182-2014 OI Hendrix, Craig/0000-0002-5696-8665 NR 5 TC 0 Z9 0 U1 0 U2 0 PU AMER COLL PHYSICIANS PI PHILADELPHIA PA INDEPENDENCE MALL WEST 6TH AND RACE ST, PHILADELPHIA, PA 19106-1572 SN 0003-4819 J9 ANN INTERN MED JI Ann. Intern. Med. PD FEB 15 PY 1994 VL 120 IS 4 BP 344 EP 344 PG 1 WC Medicine, General & Internal SC General & Internal Medicine GA MW103 UT WOS:A1994MW10300018 ER PT J AU SHIPMAN, RF CLARK, FO AF SHIPMAN, RF CLARK, FO TI THE DUST TEMPERATURE-GRADIENT IN THE ROSETTE NEBULA SO ASTROPHYSICAL JOURNAL LA English DT Article DE DUST, EXTINCTION; H II REGIONS; ISM, INDIVIDUAL (ROSETTE NEBULA) ID EMISSION; REGIONS; MODEL AB The dust temperature gradient was extracted for the large ''classical'' grain component present in the Rosette Nebula (NGC 2237-46). This temperature gradient does not follow the expected r(-0.4) law, which would result from heating dominated by the central stellar cluster. Instead, the dust temperature gradient is consistent with heating by scattered stellar radiation from the ionized region itself. The extracted temperature gradient cannot account for the 12 and 25 mu m emission, suggesting the presence of another grain component inside the H II region. The central cavity is complex. C1 USAF,GEOPHYS DIRECTORATE,PHILLIPS LAB,BACKGROUNDS BRANCH,BEDFORD,MA 01731. RP SHIPMAN, RF (reprint author), WYOMING INFRARED OBSERV,UNIV STN,POB 3905,LARAMIE,WY 82071, USA. NR 16 TC 8 Z9 8 U1 0 U2 0 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD FEB 10 PY 1994 VL 422 IS 1 BP 153 EP 157 DI 10.1086/173712 PN 1 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA MU690 UT WOS:A1994MU69000014 ER PT J AU FULLER, J CARLIN, RT DELONG, HC HAWORTH, D AF FULLER, J CARLIN, RT DELONG, HC HAWORTH, D TI STRUCTURE OF 1-ETHYL-3-METHYLIMIDAZOLIUM HEXAFLUOROPHOSPHATE - MODEL FOR ROOM-TEMPERATURE MOLTEN-SALTS SO JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS LA English DT Article ID IONIC LIQUIDS; CHLORIDE AB The crystal structure of 1-ethyl-3-methylimidazolium (EMI(+)) hexafluorophosphate consists of interionic interactions dominated by cation-anion coulombic forces with minimal hydrogen bonding and serves as a model for EMI(+) room temperature molten salts containing weakly complexing anions. C1 USAF ACAD,FRANK J SEILER RES LAB,COLORADO SPRINGS,CO 80840. NR 17 TC 310 Z9 316 U1 8 U2 51 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 FEB 7 PY 1994 IS 3 BP 299 EP 300 DI 10.1039/c39940000299 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA MX131 UT WOS:A1994MX13100030 ER PT J AU SMYTH, L SWOPE, S WISER, L REED, GT PETERSON, ED FRENCH, RA SMITH, FW HALPIN, TJ SOMANI, PJ EMIG, M LIU, RR STORMS, K MELCHER, GP DOLAN, MJ SCHUERMANN, J SIMPSON, DM KONDRACKI, SF CSIZA, CK DUNCAN, RA BIRKHEAD, GS MORSE, DL AF SMYTH, L SWOPE, S WISER, L REED, GT PETERSON, ED FRENCH, RA SMITH, FW HALPIN, TJ SOMANI, PJ EMIG, M LIU, RR STORMS, K MELCHER, GP DOLAN, MJ SCHUERMANN, J SIMPSON, DM KONDRACKI, SF CSIZA, CK DUNCAN, RA BIRKHEAD, GS MORSE, DL TI OUTBREAKS OF MYCOPLASMA-PNEUMONIAE RESPIRATORY-INFECTION - OHIO, TEXAS, AND NEW-YORK, 1993 (REPRINTED FROM MMWR, VOL 42, PG 931, 1993) SO JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION LA English DT Reprint C1 OHIO DEPT HLTH,COLUMBUS,OH. USAF,WASHINGTON,DC 20330. TEXAS DEPT HLTH,AUSTIN,TX. NEW YORK STATE DEPT HLTH,DIV FIELD EPIDEMIOL,EPIDEMIOL PROGRAM OFF,ALBANY,NY 12201. CTR DIS CONTROL,NATL CTR INFECT DIS,DIV BACTERIAL & MYCOT DIS,ATLANTA,GA 30333. RP SMYTH, L (reprint author), WARREN CTY COMBINED HLTH DIST,LEBANON,PA, USA. NR 11 TC 1 Z9 1 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 2 PY 1994 VL 271 IS 5 BP 338 EP 339 PG 2 WC Medicine, General & Internal SC General & Internal Medicine GA MR983 UT WOS:A1994MR98300005 ER PT J AU AFTOSMIS, MJ AF AFTOSMIS, MJ TI UPWIND METHOD FOR SIMULATION OF VISCOUS-FLOW ON ADAPTIVELY REFINED MESHES SO AIAA JOURNAL LA English DT Article ID NAVIER-STOKES ALGORITHM; EQUATIONS; SCHEMES AB A new node-based upwind scheme for the solution of the three-dimensional Navier-Stokes equations on adaptively refined meshes is presented. The method uses a second-order upwind total variation diminishing scheme to integrate the convective terms and discretizes the viscous terms with a new compact central difference technique. Grid adaptation is achieved through directional division of hexahedral cells in response to evolving features as the solution converges. The method is advanced in time with a multistage Runge-Kutta time stepping scheme. Two- and three-dimensional examples establish the accuracy of the inviscid and viscous discretization. These investigations highlight the ability of the method to produce crisp shocks, while accurately and economically resolving viscous layers. The representation of these and other structures is shown to be comparable to that obtained by structured methods. Further three-dimensional examples demonstrate the ability of the adaptive algorithm to effectively locate and resolve multiple scale features in complex three-dimensional flows with many interacting, viscous, and inviscid structures. C1 USAF,WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. NR 28 TC 14 Z9 14 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 FEB PY 1994 VL 32 IS 2 BP 268 EP 277 DI 10.2514/3.11981 PG 10 WC Engineering, Aerospace SC Engineering GA MV016 UT WOS:A1994MV01600006 ER PT J AU THIEM, TL AF THIEM, TL TI COMPARISON OF OPTICAL-EMISSION MASS-SPECTROSCOPY UTILIZING LASER VAPORIZATION OF SOLID SAMPLES FOR INORGANIC ANALYSIS SO AMERICAN LABORATORY LA English DT Article ID INDUCED BREAKDOWN SPECTROSCOPY; INDUCTIVELY COUPLED PLASMA; MASS-SPECTROMETRY; ELEMENTAL ANALYSIS; ABLATION; SPARK AB In this article, two methods of LIBS detection are compared, optical and mass spectroscopy for the inorganic analysis of solid samples. RP THIEM, TL (reprint author), USAF ACAD,DEPT CHEM,2354 FAIRCHILD DR,STE 2A21,COLORADO SPRINGS,CO 80840, USA. NR 29 TC 1 Z9 1 U1 1 U2 2 PU INT SCIENTIFIC COMMUN INC PI SHELTON PA PO BOX 870, 30 CONTROLS DRIVE, SHELTON, CT 06484-0870 SN 0044-7749 J9 AM LAB JI Am. Lab. PD FEB PY 1994 VL 26 IS 3 BP CCC48 EP & PG 0 WC Chemistry, Analytical; Instruments & Instrumentation SC Chemistry; Instruments & Instrumentation GA MW995 UT WOS:A1994MW99500012 ER PT J AU DAVIS, KR AF DAVIS, KR TI DOES PHYSICAL EXAM PREDICT DIFFICULTY WITH INTUBATION SO ANESTHESIA AND ANALGESIA LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,SAN ANTONIO,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 1994 VL 78 IS 2 SU S BP U55 EP U55 PG 1 WC Anesthesiology SC Anesthesiology GA NA406 UT WOS:A1994NA40600083 ER PT J AU JOHNSON, RF JOHNSON, V ARNEY, T GONZALEZ, H HERMAN, N DOWNING, JW AF JOHNSON, RF JOHNSON, V ARNEY, T GONZALEZ, H HERMAN, N DOWNING, JW TI THE EFFECT OF PROTEIN-BINDING ON THE PLACENTAL-TRANSFER OF BUPIVACAINE SO ANESTHESIA AND ANALGESIA LA English DT Meeting Abstract C1 VANDERBILT UNIV,DEPT ANESTHESIOL,NASHVILLE,TN. WILFORD HALL USAF MED CTR,DEPT ANESTHESIOL,LACKLAND AFB,TX 78236. NR 2 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 1994 VL 78 IS 2 SU S BP U102 EP U102 PG 1 WC Anesthesiology SC Anesthesiology GA NA406 UT WOS:A1994NA40600176 ER PT J AU POTERACK, KA AF POTERACK, KA TI USE OF INTRAOPERATIVE EVOKED-POTENTIALS IN ANESTHESIOLOGY RESIDENCY PROGRAMS SO ANESTHESIA AND ANALGESIA LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,PSSA,DEPT ANESTHESIOL,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 1994 VL 78 IS 2 SU S BP U187 EP U187 PG 1 WC Anesthesiology SC Anesthesiology GA NA406 UT WOS:A1994NA40600344 ER PT J AU POTERACK, KA YIN, W GRISSOM, TE HAWKINS, RS HERSACK, RA SLAVOSKI, JN VALLEY, MA AF POTERACK, KA YIN, W GRISSOM, TE HAWKINS, RS HERSACK, RA SLAVOSKI, JN VALLEY, MA TI SKIN TEMPERATURE-CHANGES AS AN EARLY INDICATOR OF SUCCESSFUL BRACHIAL-PLEXUS BLOCKADE SO ANESTHESIA AND ANALGESIA LA English DT Meeting Abstract C1 WILFORD HALL USAF MED CTR,PSSA,DEPT ANESTHESIOL,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 1994 VL 78 IS 2 SU S BP U186 EP U186 PG 1 WC Anesthesiology SC Anesthesiology GA NA406 UT WOS:A1994NA40600343 ER PT J AU SMITH, JB FOWLER, JB ZONE, JJ AF SMITH, JB FOWLER, JB ZONE, JJ TI THE EFFECT OF IBUPROFEN ON SERUM DAPSONE LEVELS AND DISEASE-ACTIVITY IN DERMATITIS-HERPETIFORMIS SO ARCHIVES OF DERMATOLOGY LA English DT Letter ID GLUTEN C1 VET AFFAIRS MED CTR,INTERNAL MED SERV,DERMATOL SECT,SALT LAKE CITY,UT 84148. UNIV UTAH,SCH MED,SALT LAKE CITY,UT. RP SMITH, JB (reprint author), USAF,DEPT EMERGENCY,HILL AFB,UT 84602, USA. FU NCRR NIH HHS [M01-RR-00064] NR 5 TC 3 Z9 3 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 FEB PY 1994 VL 130 IS 2 BP 257 EP 259 DI 10.1001/archderm.130.2.257 PG 3 WC Dermatology SC Dermatology GA MV881 UT WOS:A1994MV88100025 PM 8304772 ER PT J AU BOLGER, MWE AF BOLGER, MWE TI REPORT OF THE ANNUAL-MEETING OF THE AMERICAN-RHINOLOGIC-SOCIETY SO ARCHIVES OF OTOLARYNGOLOGY-HEAD & NECK SURGERY LA English DT Editorial Material RP BOLGER, MWE (reprint author), USAF,BETHESDA,MD, USA. NR 0 TC 0 Z9 0 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 FEB PY 1994 VL 120 IS 2 BP 238 EP 240 PG 3 WC Otorhinolaryngology; Surgery SC Otorhinolaryngology; Surgery GA MV877 UT WOS:A1994MV87700023 ER PT J AU MUSSER, JM KAPUR, V PETERS, JE HENDRIX, CW DREHNER, D GACKSTETTER, GD SKALKA, DR FORT, PL MAFFEI, JT LI, LL MELCHER, GP AF MUSSER, JM KAPUR, V PETERS, JE HENDRIX, CW DREHNER, D GACKSTETTER, GD SKALKA, DR FORT, PL MAFFEI, JT LI, LL MELCHER, GP TI REAL-TIME MOLECULAR EPIDEMIOLOGIC ANALYSIS OF AN OUTBREAK OF STREPTOCOCCUS-PYOGENES INVASIVE DISEASE IN US AIR-FORCE TRAINEES SO ARCHIVES OF PATHOLOGY & LABORATORY MEDICINE LA English DT Article ID ACUTE RHEUMATIC-FEVER; UNITED-STATES; PROPHYLAXIS; INFECTIONS; RESURGENCE; DNA AB Objective.-To determine if molecular epidemiologic techniques, including comparative automated DNA sequencing of polymorphic virulence genes, could be used in the course of a bacterial disease outbreak to unambiguously determine clonal relationships among implicated strains. Design.-Strains recovered from all patients with invasive infections and a sample of carriers were analyzed by multilocus enzyme electrophoresis and automated DNA sequencing of a gene encoding an extracellular protease and a highly polymorphic part of the streptokinase gene. Setting.-A US Air Force training facility in San Antonio, Tex. Patients.-A squadron with about 800 Air Force trainees, including three recruits with invasive Streptococcus pyogenes infections. Results.-Multilocus enzyme electrophoresis and automated DNA sequencing of polymorphic virulence genes unambiguously defined person-to-person spread of an otherwise rare S pyogenes clone in the course of the disease outbreak and clarified strain relationships in real time. Conclusions.-Molecular strain characterization techniques can be employed rapidly in a disease outbreak to definitively resolve complex relationships among pathogenic bacteria, infer patterns of clone spread, and help formulate rational public health control measures. The approach has broad applicability to other infectious agents. C1 WILFORD HALL USAF MED CTR,DEPT PATHOL,LACKLAND AFB,TX. WILFORD HALL USAF MED CTR,DEPT MED,LACKLAND AFB,TX. WILFORD HALL USAF MED CTR,DEPT PREVENT MED,LACKLAND AFB,TX. WILFORD HALL USAF MED CTR,DEPT MIL PUBL HLTH,LACKLAND AFB,TX. RP MUSSER, JM (reprint author), BAYLOR COLL MED,DEPT PATHOL,MOLEC PATHOBIOL SECT,1 BAYLOR PLAZA,HOUSTON,TX 77030, USA. RI Kapur, Vivek/F-7610-2013; Hendrix, Craig/G-4182-2014; OI Hendrix, Craig/0000-0002-5696-8665; Kapur, Vivek/0000-0002-9648-0138 NR 28 TC 26 Z9 26 U1 0 U2 0 PU COLLEGE AMER PATHOLOGISTS PI NORTHFIELD PA C/O KIMBERLY GACKI, 325 WAUKEGAN RD, NORTHFIELD, IL 60093-2750 SN 0003-9985 J9 ARCH PATHOL LAB MED JI Arch. Pathol. Lab. Med. PD FEB PY 1994 VL 118 IS 2 BP 128 EP 133 PG 6 WC Medical Laboratory Technology; Medicine, Research & Experimental; Pathology SC Medical Laboratory Technology; Research & Experimental Medicine; Pathology GA MV289 UT WOS:A1994MV28900010 PM 8311650 ER PT J AU WILSON, GF FULLENKAMP, P DAVIS, I AF WILSON, GF FULLENKAMP, P DAVIS, I TI EVOKED-POTENTIAL, CARDIAC, BLINK, AND RESPIRATION MEASURES OF PILOT WORKLOAD IN AIR-TO-GROUND MISSIONS SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID OPERATOR AB Brain evoked potentials were successfully recorded from F-4 pilots during air-to-ground training missions. They were recorded during two flight segments. During one the pilot was flying, and during the other, the weapon systems officer was flying the aircraft. The P2 component of the brain-evoked potential evidenced reduced amplitude during the pilot-flying segment, while the Nl component was reduced during both flight tasks compared to ground-based tasks. These data indicate that the P2 amplitude is sensitive to the level of pilot workload. These results were further substantiated using simultaneously recorded physiological data and subjective workload measures. For example, cardiac inter-beat intervals decreased during flight segments relative to those recorded when performing a tracking task, and further reduced for the pilot-flying vs. the weapon systems officer-flying segment. Eye blink measures were sensitive to the visual demands of the various tasks. These data show that evoked potentials can be recorded during flight, and that, together with cardiac and eye blink data, they provide a composite picture of operator state. C1 LOGICON TECH SERV INC,DAYTON,OH. RP WILSON, GF (reprint author), ARMSTRONG LAB,DIV HUMAN ENGN,PERFORMANCE ASSESSMENT BRANCH,AL CFHP,2255 H ST,BLDG 248,WRIGHT PATTERSON AFB,OH 45433, USA. NR 32 TC 16 Z9 18 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 1994 VL 65 IS 2 BP 100 EP 105 PG 6 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA MW503 UT WOS:A1994MW50300002 PM 8161318 ER PT J AU FORSTER, EM BARBER, JA PARKER, FR WHINNERY, JE BURTON, RR BOLL, P AF FORSTER, EM BARBER, JA PARKER, FR WHINNERY, JE BURTON, RR BOLL, P TI EFFECT OF PYRIDOSTIGMINE BROMIDE ON ACCELERATION TOLERANCE AND PERFORMANCE SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID GROUND-LEVEL; ALTITUDE AB Pyridostigmine Bromide (PB) is used as a pre-exposure antidote for the prevention of potentially lethal effects of certain chemical warfare nerve agents by reversibly inhibiting acetylcholinesterase (AChE). This study was designed to determine whether PB has any deleterious effects on acceleration tolerance (+Gz) or performance. Double-blind placebo trials were conducted to evaluate the effects of PB (90 mg) per day on +Gx tolerances and performance. Three types of exposures were used: 1) gradual onset rate (GOR) exposures of 0.1 G/s; 2) a series of rapid onset rate (ROR) exposures of 6.0 G/s; and 3) a simulated aerial combat maneuver (SACM) of 4.5 to 9.0 +Gz. Performance tasks included the Unified Tri-Service Cognitive Performance Assessment Battery (UTC-PAB). The subjects were not able to correlate their symptoms with PB, placebo, or the acceleration exposure itself. Plasma PB individual levels ranged between 6 and 31 ng/ml and AChE levels of inhibition had a range of 12 to 45%. There were no significant effects on +Gz tolerance or performance related to PB. Based on the results of this study, PB does not significantly alter +Gz tolerance or performance. Therefore, we do not expect aircrew taking prophylactic doses of PB to be adversely affected during aerial combat operations. C1 KRUG LIFE SCI,SAN ANTONIO,TX. ESPEY HUSTON & ASSOCIATES,BIOASSAY LAB,HOUSTON,TX. CREW SYST DIRECTORATE,ARMSTRONG LAB,BROOKS AFB,TX. RP FORSTER, EM (reprint author), USN,CTR WARFARE,DIV AIRCRAFT,CODE 6023,WARMINSTER,PA 18974, USA. NR 24 TC 5 Z9 6 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 1994 VL 65 IS 2 BP 110 EP 116 PG 7 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA MW503 UT WOS:A1994MW50300004 PM 8161320 ER PT J AU HILL, RC MILLER, CW TUCKER, A AF HILL, RC MILLER, CW TUCKER, A TI INFLUENCE OF CARBON-DIOXIDE ON VENOUS GAS EMBOLI PRODUCTION DURING ALTITUDE DECOMPRESSION IN GOATS SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Article ID NITROGEN AB Goats (N = 7) were decompressed from 1,500 m to 9,150, 9,750, or 10,400 m simulated altitude while breathing CO2 tensions of 0, 15, 30, or 46 mm Hg in O2 during 15-min prebreathing and 30-min peak altitude exposures. Risk of decompression sickness was determined by detecting venous gas emboli (VGE) in the pulmonary artery with an implanted Doppler cuff. VGE scores were calculated using the ratio of cardiac cycles containing VGE to total cardiac cycles. The VGE scoring methodology proved sensitive to standard treatment effects (air versus O2 prebreathing). No significant change in VGE scores as a result of varying the inspired CO2 level was detected. Further, no significant change in cardiac index occurred during the various CO2 exposures, and VGE scores were not correlated with cardiac index. Ground-level studies revealed the tension of end-tidal CO2 was significantly elevated at all three levels of inspired CO2, but no change in cardiac index was observed. Short-duration breathing of CO2 in oxygen failed to significantly reduce the risk of decompression sickness as assessed by VGE production. C1 ARMSTRONG LAB,BROOKS AFB,TX 78235. RP HILL, RC (reprint author), COLORADO STATE UNIV,DEPT PHYSIOL,FT COLLINS,CO 80523, USA. NR 20 TC 6 Z9 6 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 1994 VL 65 IS 2 BP 139 EP 143 PG 5 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA MW503 UT WOS:A1994MW50300008 PM 8161324 ER PT J AU LYONS, TJ ERCOLINE, WR FREEMAN, JE GILLINGHAM, KK AF LYONS, TJ ERCOLINE, WR FREEMAN, JE GILLINGHAM, KK TI CLASSIFICATION PROBLEMS OF UNITED-STATES-AIR-FORCE SPATIAL DISORIENTATION ACCIDENTS, 1989-91 SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Note AB Spatial disorientation (SD) continues to contribute to a fairly constant proportion of military aircraft accidents. The U.S. Air Force (USAF) fielded a new accident investigation reporting form in July 1989, which for the first time specified Type I SD, Type II SD, and Type III SD as possible causes of aircraft accidents. Of a total of 91 major accidents that occurred over the 2-year period beginning in October 1989, SD was rated as contributing significantly to 13 (14%). Coding for SD on accident investigation reporting forms was not consistent, however. Individual flight surgeons differed in their approaches to coding accidents as SD-related; other differences were noted between flight surgeons and pilots, and additional procedural differences resulted in inconsistent reporting over time. There is a consensus that SD represents a major problem in military aviation, but a scientific approach to this important problem would be facilitated if agreement could be reached on definitional and semantic issues. C1 ARMSTRONG LAB CREW SYST DIRECTORATE,BROOKS AFB,TX. RP LYONS, TJ (reprint author), USAF,SAFETY AGCY,SGPA,PSC 2 BOX 5596,APO AE 09012,NORTON AFB,CA, USA. NR 20 TC 17 Z9 20 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 1994 VL 65 IS 2 BP 147 EP 152 PG 6 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA MW503 UT WOS:A1994MW50300010 PM 8161326 ER PT J AU WOODY, JR MCKINNEY, EH BARKER, JM CLOTHIER, CC AF WOODY, JR MCKINNEY, EH BARKER, JM CLOTHIER, CC TI COMPARISON OF FIXED VERSUS FORMED AIRCREWS IN MILITARY TRANSPORT SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Note ID CREW AB Historically, transport crews are formed to fly a brief series of sorties together. But what would be the effect of keeping crews together longer? This research investigates the effect of crewing policies on accident rates. We compare the crew coordination performance of fixed teams that work together indefinitely with that of formed teams that work together for shorter periods. We researched 74 accident investigation records of two jet transport aircraft of the U.S. Air Force over 20-year periods. These aircraft used both fixed and formed crews. The ''ineffective crew coordination'' accident rates for formed crews were significantly safer (x = 12.5 for one aircraft and 2.1 for another p < 0.05). This may imply that airlines and military commands could enhance flight safety by following a formed crew policy. However, further study is needed to identify more completely the effects of crew policies on sortie effectiveness. C1 USAF ACAD,DEPT BEHAV SCI & LEADERSHIP,COLORADO SPRINGS,CO 80840. RP WOODY, JR (reprint author), USAF ACAD,DEPT MANAGEMENT,USAFA,DFM,COLORADO SPRINGS,CO 80840, USA. NR 12 TC 4 Z9 4 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 FEB PY 1994 VL 65 IS 2 BP 153 EP 156 PG 4 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA MW503 UT WOS:A1994MW50300011 PM 8161327 ER PT J AU DOOLEY, DP TOMSKI, S AF DOOLEY, DP TOMSKI, S TI SYPHILITIC PNEUMONITIS IN AN HIV-INFECTED PATIENT SO CHEST LA English DT Note ID SECONDARY SYPHILIS; INVOLVEMENT AB Pneumonitis and symptomatic hepatitis are very rare complications of syphilis. Symptomatic hepatitis and subclinical reticulonodular pulmonary infiltrates were observed when an HIV-infected patient presented with secondary syphilis. The Jarisch-Herxheimer reaction included a flare of hepatitis symptoms, resembling cholangitis. In a patient with syphilis, it may be appropriate to delay an aggressive evaluation for suspected pneumonitis or cholangitis pending the outcome of specific antitreponemal therapy. C1 BROOKE ARMY MED CTR,DEPT MED,FT SAM HOUSTON,TX 78234. WILFORD HALL USAF MED CTR,LACKLAND AFB,TX. NR 24 TC 9 Z9 10 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 FEB PY 1994 VL 105 IS 2 BP 629 EP 631 DI 10.1378/chest.105.2.629 PG 3 WC Critical Care Medicine; Respiratory System SC General & Internal Medicine; Respiratory System GA MX262 UT WOS:A1994MX26200073 PM 8306785 ER PT J AU LUTTON, MJ BERAN, PS AF LUTTON, MJ BERAN, PS TI HOPF-BIFURCATION IN VISCOUS, LOW-SPEED FLOWS ABOUT AN AIRFOIL WITH STRUCTURAL COUPLING SO COMPUTERS & FLUIDS LA English DT Article ID CYLINDER AB The locations of Hopf bifurcation points associated with the viscous, incompressible flow about a NACA 0012 airfoil with structural coupling are computed for very low Re (< 2000). A semi-implicit, first-order-accurate time-integration algorithm is employed to solve the streamfunction-vorticity form of the Navier-Stokes equations. The algorithm is modified to include simple structural elements affixed to the airfoil and the resulting airfoil motion. The equations describing the airfoil motion are integrated in time using a fourth-order Runge-Kutta algorithm. Numerical experiments are performed to determine if the structural model of the airfoil has an effect upon the location of the Hopf bifurcation point when compared with the fixed airfoil. Results are reported for a variety of structural characteristics, including variation of torsional and linear spring constants, inertial properties, structural coupling and structural damping. C1 USAF,INST TECHNOL,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433. NR 19 TC 1 Z9 1 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0045-7930 J9 COMPUT FLUIDS JI Comput. Fluids PD FEB PY 1994 VL 23 IS 2 BP 323 EP 345 DI 10.1016/0045-7930(94)90044-2 PG 23 WC Computer Science, Interdisciplinary Applications; Mechanics SC Computer Science; Mechanics GA MJ410 UT WOS:A1994MJ41000006 ER PT J AU CONSTABLE, SH BISHOP, PA NUNNELEY, SA CHEN, T AF CONSTABLE, SH BISHOP, PA NUNNELEY, SA CHEN, T TI INTERMITTENT MICROCLIMATE COOLING DURING REST INCREASES WORK CAPACITY AND REDUCES HEAT-STRESS SO ERGONOMICS LA English DT Article DE PERSONAL COOLING; PROTECTIVE CLOTHING; WORK TOLERANCE; HEAT TOLERANCE AB Requirements for special protective equipment while working in hazardous environments can present a significantly increased thermal burden and early onset of physical fatigue. Ambulatory (backpack) or tethered personal cooling can accelerate metabolic heat removal, but is often not practical from an ergonomic standpoint. The efficacy of incorporating personal cooling during non-ambulatory rest periods was evaluated in subjects (n = 8) with varying levels of fitness. Treadmill work (approximate to 475 W, 40% VO2 max) was alternately performed for 30 min followed by 30 min of rest. Subjects walked and rested under three separate experimental conditions: (1) control (C), in which light clothing was worn; (2) CPE, in which a chemical protective ensemble (CPE) was worn, and (3) CPE plus intermittent microclimate cooling (COOL). The WBGT condition for all trials was 31 degrees C. During the COOL trial the subjects additionally wore a personal cooling vest which allowed for the circulation of chilled liquid over the torso during rest. Under C conditions, relatively modest changes in rectal temperature (T-re) were observed, which stabilized over time. CPE wear resulted in a progessive rise in T-re and early fatigue. The addition of intermittent cooling during each rest cycle (COOL trial) significantly attenuated heat storage such that an oscillating, but equilibrated T-re was established and work capacity was at least doubled. Moreover, the perceived cooling effect was appreciable for all subjects. Therefore, intermittent personal cooling provided a useful means of enhancing work productivity and may have application for certain military and industrial personnel performing heavy work in hot environments. This approach should provide a practical alternative for reducing stress/fatigue when work/rest cycles are employed. RP CONSTABLE, SH (reprint author), ARMSTRONG LAB,SUSTAINED OPERAT BRANCH,BROOKS AFB,TX 78235, USA. NR 10 TC 26 Z9 27 U1 1 U2 4 PU TAYLOR & FRANCIS LTD PI LONDON PA ONE GUNDPOWDER SQUARE, LONDON, ENGLAND EC4A 3DE SN 0014-0139 J9 ERGONOMICS JI Ergonomics PD FEB PY 1994 VL 37 IS 2 BP 277 EP 285 DI 10.1080/00140139408963645 PG 9 WC Engineering, Industrial; Ergonomics; Psychology, Applied; Psychology SC Engineering; Psychology GA MU976 UT WOS:A1994MU97600005 PM 8119260 ER PT J AU POST, ME TRUMP, DD GOSS, LP HANCOCK, RD AF POST, ME TRUMP, DD GOSS, LP HANCOCK, RD TI 2-COLOR PARTICLE-IMAGING VELOCIMETRY USING A SINGLE ARGON-ION LASER SO EXPERIMENTS IN FLUIDS LA English DT Article ID VELOCITY-FIELD MEASUREMENTS; INDUCED FLUORESCENCE TECHNIQUE; GAS-FLOWS; SPECKLE VELOCIMETRY; DIRECTIONAL AMBIGUITY; VISUALIZATION; JET AB A swept-beam, two-color particle-imaging velocimetry (PIV) technique has been developed which utilizes a single argon-ion laser for illuminating the seed particles in a flowfield. In previous two-color PIV techniques two pulsed lasers were employed as the different-color light sources. In the present experiment the particles in a two-dimensional shear-layer flow were illuminated using a rotating mirror to sweep the 488.0-nm (blue) and 514.5-nm (green) lines of the argon-ion laser through a test section. The blue- and green-particle positions were recorded on color film with a 35-mm camera. The unique color coding eliminates the directional ambiguities associated with single-color techniques because the order in which the particle images are produced is known. Analysis of these two-color PIV images involved digitizing the exposed film to obtain the blue and green-particle image fields and processing the digitized images with velocity-displacement software. Argon-ion lasers are available in many laboratories; with the addition of a rotating mirror and a few optical components, it is possible to conduct flow-visualization experiments and make quantitative velocity measurements in many flow facilities. C1 WRIGHT LAB,AERO PROP & POWER DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RP POST, ME (reprint author), ARVIN CALSPAN ADV TECHNOL CTR,SYST RES LABS INC,2800 INDIAN RIPPLE RD,DAYTON,OH 45440, USA. NR 25 TC 6 Z9 6 U1 0 U2 0 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0723-4864 J9 EXP FLUIDS JI Exp. Fluids PD FEB PY 1994 VL 16 IS 3-4 BP 263 EP 272 PG 10 WC Engineering, Mechanical; Mechanics SC Engineering; Mechanics GA MZ222 UT WOS:A1994MZ22200013 ER PT J AU GURBAXANI, SH MARTINEZ, VE NABAVI, SH AF GURBAXANI, SH MARTINEZ, VE NABAVI, SH TI ON THE SOLUTION OF PERIODIC CYLINDRICAL STRUCTURES WITH MIXED BOUNDARY-CONDITIONS SO IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY LA English DT Note AB In various types of EMP simulators, the existence of spurious electrons is an annoying problem [1]. To reduce this effect, charged wire structures have been employed [2], [3]. Solution of a wire mesh charged to a sufficiently high negative potential to repel these unwanted electrons has been handled theoretically by conformal transformation for the limiting case of thin-wire structures [2]. The generalized case of finite-radii cylindrical structures has been dealt with in [3] by Fourier transformation. In this work, separation of variables and the method of moments have been used for a two-dimensional study of the problem of cylindrical satellite with a periodic structure of narrow sheets having a constant negative voltage. The result is applicable to repelling unwanted electrons in system-generated EMP simulators. The technique is general and hence can easily be extended to the case of a coaxial line with slots as well as other shielding enclosures and similar applications. C1 UNIV NEW MEXICO,DEPT ELECT & COMP ENGN,ALBUQUERQUE,NM 87131. USAF,PHILLIPS LABS,KIRTLAND AFB,NM 87117. RP GURBAXANI, SH (reprint author), FIORE IND INC,ALBUQUERQUE,NM 87117, USA. NR 4 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 0018-9375 J9 IEEE T ELECTROMAGN C JI IEEE Trans. Electromagn. Compat. PD FEB PY 1994 VL 36 IS 1 BP 74 EP 76 DI 10.1109/15.265483 PG 3 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA NB817 UT WOS:A1994NB81700010 ER PT J AU BUNEMAN, R BARKER, RJ PERATT, AL BRECHT, SH LANGDON, AB LEWIS, HR AF BUNEMAN, R BARKER, RJ PERATT, AL BRECHT, SH LANGDON, AB LEWIS, HR TI A TRIBUTE TO BUNEMAN,OSCAR - PIONEER OF PLASMA SIMULATION SO IEEE TRANSACTIONS ON PLASMA SCIENCE LA English DT Article; Proceedings Paper CT Annual International Conference on Plasma Science (ICOPS) CY JUN 07-09, 1993 CL VANCOUVER, CANADA ID 3 DIMENSIONS AB Highlights are presented from among the many contributions made by Oscar Buneman to the science, engineering, and mathematics communities. Emphasis is placed not only on ''what'' this pioneer of computational plasma physics contributed but, of equal importance, on ''how'' he made his contributions. Therein lies the difference between technical competence and scientific greatness. The picture which emerges illustrates the open-mindedness, enthusiasm, intellectual/physical stamina, imagination, intellectual integrity, interdisciplinary curiosity, and deep humanity that made this individual unique. As a gentleman and a scholar, he had mastered the art of making cold technical facts ''come to life.'' Oscar Buneman died peacefully at his home near Stanford University on Sunday, January 24th, 1993. The profound influence he has had on so many of his colleagues guarantees his immortality. C1 USAF,OFF SCI RES,DIRECTORATE PHYS & ELECTR,WASHINGTON,DC 20332. BERKELEY RES ASSOCIATES INC,BERKELEY,CA 94701. LOS ALAMOS NATL LAB,GRP P-15,LOS ALAMOS,NM 87545. LAWRENCE LIVERMORE NATL LAB,DIV X,LIVERMORE,CA 94550. DARTMOUTH COLL,DEPT PHYS & ASTRON,HANOVER,NH 03755. NR 31 TC 2 Z9 2 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 0093-3813 J9 IEEE T PLASMA SCI JI IEEE Trans. Plasma Sci. PD FEB PY 1994 VL 22 IS 1 BP 22 EP 30 DI 10.1109/27.281546 PG 9 WC Physics, Fluids & Plasmas SC Physics GA NE108 UT WOS:A1994NE10800004 ER PT J AU GODFREY, BB AF GODFREY, BB TI SIMPLE PROOF OF ELECTRON-BEAM STABILITY IN THE DEEP-POTENTIAL-WELL EQUILIBRIUM SO IEEE TRANSACTIONS ON PLASMA SCIENCE LA English DT Article ID PLASMA AB It is well known that a strongly magnetized electron beam propagating in an evacuated conducting pipe can exist in either of two equilibria, one with a shallow potential well and the other with a deep potential well. A Lorentz transformation connecting the two classes of equilibria is derived here. Thus, since shallow-potential-well equilibria are known to be stable, the deep-potential-well equilibria must also be. The stability of spacecharge waves in the two equilibria should follow the same pattern. C1 PHILLIPS LAB,HIGH POWER MICROWAVE RES PROGRAM,KIRTLAND AFB,NM 87117. UNIV NEW MEXICO,ALBUQUERQUE,NM 87131. PHILLIPS LAB,SPACE SATELLITE SURVIVABIL DEV PROGRAM,KIRTLAND AFB,NM 87117. RP GODFREY, BB (reprint author), USAF,OFF SCI RES,BOLLING AFB,DC 20332, USA. RI Godfrey, Brendan/D-8204-2011 OI Godfrey, Brendan/0000-0003-2311-7060 NR 6 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 0093-3813 J9 IEEE T PLASMA SCI JI IEEE Trans. Plasma Sci. PD FEB PY 1994 VL 22 IS 1 BP 71 EP 72 DI 10.1109/27.281553 PG 2 WC Physics, Fluids & Plasmas SC Physics GA NE108 UT WOS:A1994NE10800011 ER PT J AU PERNOT, JJ NICHOLAS, T MALL, S AF PERNOT, JJ NICHOLAS, T MALL, S TI MODELING THERMOMECHANICAL FATIGUE-CRACK GROWTH-RATES IN TI-24AL-11NB SO INTERNATIONAL JOURNAL OF FATIGUE LA English DT Article DE TI-24AL-11NB; THERMOMECHANICAL CYCLING; CRACK GROWTH ID TITANIUM ALUMINIDE ALLOY; HIGH-TEMPERATURE; DAMAGE AB A model is developed for predicting the crack growth rate in a titanium aluminide alloy under thermomechanical cycling. The model utilizes a linear summation of cycle-dependent and time-dependent terms, where the cycle-dependent behaviour is dependent on temperture as well as DELTAK and R. The time-dependent term is obtained through an integration of da/dt over any cycle, where da/dt depends on K and temperature. A unique feature of this model is the use of a retardation coefficient with the crack growth terms to account for creep or stress relaxation under load at high temperatures. Evolution equations are derived for the retardation term, which can vary during an individual load cycle. The model is calibrated using solely isothermal data and applied to several thermomechanical fatigue conditions, where good correlation is obtained between experimental data and model predictions. C1 USAF,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433. RP PERNOT, JJ (reprint author), WRIGHT LAB,MAT DIRECTORATE,DIV MET & CERAM,WRIGHT PATTERSON AFB,OH 45433, USA. NR 28 TC 8 Z9 8 U1 1 U2 1 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0142-1123 J9 INT J FATIGUE JI Int. J. Fatigue PD FEB PY 1994 VL 16 IS 2 BP 111 EP 122 DI 10.1016/0142-1123(94)90101-5 PG 12 WC Engineering, Mechanical; Materials Science, Multidisciplinary SC Engineering; Materials Science GA MY772 UT WOS:A1994MY77200002 ER PT J AU Katta, VR Goss, LP Roquemore, WM AF Katta, V. R. Goss, L. P. Roquemore, W. M. TI SIMULATION OF VORTICAL STRUCTURES IN A JET DIFFUSION FLAME SO INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW LA English DT Article DE Jets; Diffusion flame; Vortices; Upwind AB The dynamics of a transitional propane jet diffusion flame with a fuel-jet velocity of 2.2 m/s has been studied using an implicit, third-order-accurate, upwind numerical scheme. The large-scale vortices outside the flame surface and the small-scale ones inside were simulated simultaneously, and their interactions with the flame surface were investigated. Numerical experiments were conducted to gain insight into the influence of buoyancy and shear-layer forcing on the development of the outer and inner vortices. In the presence of buoyancy forces, the outer vortices developed as part of the solution, and the vortex-crossing frequency was approximately 15 Hz. The inner structures were manifested from a weak perturbation in the vorticity that was introduced at the nozzle exit, and, at 185 Hz, these vortices were found to travel farther downstream. It was also found that the inner vortices do not play a role in the formation of the outer vortices, and vice versa. However, the growth of the inner vortices in the downstream locations is strongly influenced by the slowly moving outer vortices. C1 [Katta, V. R.; Goss, L. P.] Syst Res Labs Inc, Dayton, OH 45440 USA. [Roquemore, W. M.] USAF, Wright Lab, Aero Prop & Power Directorate, Wright Patterson AFB, OH 45433 USA. RP Katta, VR (reprint author), Syst Res Labs Inc, 2800 Indian Ripple Rd, Dayton, OH 45440 USA. FU US Air Force [F33615-90-C-2033] FX This work was supported, in part, by US Air Force Contract F33615-90-C-2033. The authors would like to thank Mrs. M. Whitaker for help in the preparation of the manuscript. NR 16 TC 34 Z9 34 U1 0 U2 4 PU EMERALD GROUP PUBLISHING LIMITED PI BINGLEY PA HOWARD HOUSE, WAGON LANE, BINGLEY BD16 1WA, W YORKSHIRE, ENGLAND SN 0961-5539 J9 INT J NUMER METHOD H JI Int. J. Numer. Methods Heat Fluid Flow PD FEB PY 1994 VL 4 IS 1 BP 413 EP 424 PG 12 WC Thermodynamics; Mathematics, Interdisciplinary Applications; Mechanics SC Thermodynamics; Mathematics; Mechanics GA V29HM UT WOS:000208739500024 ER PT J AU NISH, WA CHARLESWORTH, EN DAVIS, TL WHISMAN, BA VALTIER, S CHARLESWORTH, MG LEIFERMAN, KM AF NISH, WA CHARLESWORTH, EN DAVIS, TL WHISMAN, BA VALTIER, S CHARLESWORTH, MG LEIFERMAN, KM TI THE EFFECT OF IMMUNOTHERAPY ON THE CUTANEOUS LATE-PHASE RESPONSE TO ANTIGEN SO JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY LA English DT Article DE IMMUNOTHERAPY; LATE-PHASE RESPONSE; SKIN CHAMBER; ALLERGIC RHINITIS ID RAGWEED-POLLEN; INFLAMMATORY MEDIATORS; ALLERGIC RHINITIS; NASAL CHALLENGE; SKIN REACTIONS; FACTOR HRF; HAY-FEVER; HISTAMINE; EOSINOPHIL; ASTHMA AB Background: This study used the skin chamber model to evaluate prospectively the effect of immunotherapy (IT) on the cutaneous early and late phase response (LPR) to epicutaneous antigen challenge. Methods: Nine subjects with allergic rhinitis were studied at three time points: before starting IT, after 3 months of IT, and after 6 months of IT. Skin chamber histamine content was measured hourly for it hours, and cell counts performed hourly during hours 6 to 12. An intradermal skin test was placed, and the reaction was measured hourly for 12 hours. Skin biopsy specimens were obtained 8 hours after intradermal placement and evaluated for cellular infiltrate and major basic protein deposition. Serum antigen-specific IgG and IgE levels were measured at each time point to confirm physiologic effect of IT. Results: Six months of IT significantly (p < 0.05) decreased both early and LPR shin test reactivity and skin chamber histamine for hours 1 to 3, 4 to 6, and 9 to 12. Skin chamber LPR cellular influx decreased significantly (p < 0.05) for neutrophils only. Decrease in LPR histamine after 6 months of IT was significantly correlated with both decrease in mononuclear cells (R(2) = 0.817, p = 0.002) and decrease in neutrophils (R(2) = 0.813, p = 0.009). Also significantly correlated were decrease in LPR skin test reactivity, with percent change in skin chamber mononuclear cells (R(2) = 0.800, p = 0.009) and decrease in early skin test reactivity (R(2) = 0.675, p = 0.01). Biopsy specimens showed no consistent change in either dermal cellular infiltrate or deposition of major basic protein. Conclusion: IT significantly attenuates cutaneous histamine release and skin test reactivity and is accompanied by a decrease in skin chamber LPR neutrophil influx without significantly altering the dermal infiltrate at 8 hours. C1 WILFORD HALL USAF MED CTR,DEPT ALLERGY IMMUNOL,LACKLAND AFB,TX. WILFORD HALL USAF MED CTR,DEPT DERMATOL,LACKLAND AFB,TX. MAYO CLIN & MAYO FDN,DEPT DERMATOL,ROCHESTER,MN 55905. FU NIAMS NIH HHS [AR36008] NR 34 TC 39 Z9 40 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 1994 VL 93 IS 2 BP 484 EP 493 DI 10.1016/0091-6749(94)90358-1 PG 10 WC Allergy; Immunology SC Allergy; Immunology GA MY581 UT WOS:A1994MY58100010 PM 8120276 ER PT J AU KNIPP, DJ EMERY, BA RICHMOND, AD HAIRSTON, MR AF KNIPP, DJ EMERY, BA RICHMOND, AD HAIRSTON, MR TI MAPPING IONOSPHERIC CONVECTION RESPONSE TO IMF BY NEGATIVE AND BZ POSITIVE CONDITIONS SO JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS LA English DT Article; Proceedings Paper CT Symposium on Geophysical Phenomena in the Polar Cap during Northward Interplanetary Magnetic Field, at the XX IUGG General Assembly CY AUG 23, 1991 CL VIENNA, AUSTRIA SP INT UNION GEODESY & GEOPHYS, INT ASSOC GEOMAGNETISM & AERON ID INTERPLANETARY MAGNETIC-FIELD; HIGH-LATITUDE IONOSPHERE; NORTHWARD IMF; ELECTRODYNAMIC PATTERNS; LOCALIZED OBSERVATIONS; ELECTRIC-FIELD; CURRENTS; MAGNETOSPHERE; MAGNETOPAUSE; DIRECTION AB We have used the Assimilative Mapping of Ionospheric Electrodynamics (AMIE) procedure to derive electric potential patterns for a period of strong and slowly varying northward interplanetary Magnetic Field (IMF). Using these patterns we offer some insight into high-latitude convection response to differing IMF conditions between the hours of 0850 and 1720 UT on 14 January 1988. We introduce a newly assimilated data set, Defense Meteorological Satellite Program (DMSP) ion drift measurements, as a means of mapping electric fields in polar regions. Also, for the first time we map both southern and northern hemisphere convection flows. We show that significantly different convection patterns are simultaneously possible in the two polar caps when B(z) is positive, and that asymmetries in these patterns are influenced by the strength of B(y) and B(x). When the ratio \B(y)/B(z)\ exceeds unity the polar cap convection increases and changes from sunward to anti-sunward for B(z) positive conditions. C1 UNIV TEXAS,CTR SPACE SCI,RICHARDSON,TX 75083. NATL CTR ATMOSPHER RES,HIGH ALTITUDE OBSERV,BOULDER,CO 80307. RP KNIPP, DJ (reprint author), USAF ACAD,DEPT PHYS,COLORADO SPRINGS,CO 80917, USA. OI Richmond, Arthur/0000-0002-6708-1023 NR 40 TC 5 Z9 5 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0021-9169 J9 J ATMOS TERR PHYS JI J. Atmos. Terr. Phys. PD FEB PY 1994 VL 56 IS 2 BP 223 EP 235 DI 10.1016/0021-9169(94)90032-9 PG 13 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA MM182 UT WOS:A1994MM18200007 ER PT J AU CLERICI, M WYNN, TA BERZOFSKY, JA BLATT, SP HENDRIX, CW SHER, A COFFMAN, RL SHEARER, GM AF CLERICI, M WYNN, TA BERZOFSKY, JA BLATT, SP HENDRIX, CW SHER, A COFFMAN, RL SHEARER, GM TI ROLE OF INTERLEUKIN-10 IN T-HELPER CELL DYSFUNCTION IN ASYMPTOMATIC INDIVIDUALS INFECTED WITH THE HUMAN-IMMUNODEFICIENCY-VIRUS SO JOURNAL OF CLINICAL INVESTIGATION LA English DT Article DE CYTOKINES; INTERLEUKIN-2; INTERLEUKIN-10; HUMAN IMMUNODEFICIENCY VIRUS INFECTION; T LYMPHOCYTES ID CYTOKINE PRODUCTION; HOMOSEXUAL MEN; TH2 CLONES; HIV; IL-10; PROLIFERATION; ANTIBODY; RECOGNITION; MONOCYTES; RESPONSES AB The loss of T helper cell (TH) function in asymptomatic HIV type 1-infected individuals occurs before the decline in CD4(+) T cells. At least part of the loss in TH function results from changes in immunoregulatory cytokine profiles. To investigate the role of IL-10 in such dysregulation, we tested whether: (a) expression of IL-10-specific mRNA would be upregulated in PBMC from asymptomatic, HIV-infected (HIV+) individuals; (b) PBMC from these same individuals would produce increased levels of IL-10 when stimulated in vitro with phytohemagglutinin; and (c) defective antigen-specific TH function could be restored by anti-IL-10 antibody. We observed that IL-10-specific mRNA was marginally upregulated, and increased levels of IL-10 were produced by PBMC from HIV+ individuals compared with PBMC from uninfected individuals, Those individuals whose TH function was more severely compromised produced higher levels of IL-10. Additionally, defective antigen-specific TH function in vitro could be reversed by anti-IL-10 antibody, including the response to HIV envelope synthetic peptides. Furthermore, the antigen-specific TH responses of HIV-uninfected PBMC could be reduced with IL-10, a process reversed by anti-IL-10. These results confirm that the early loss of TH function in HIV+ individuals is due at least in part to cytokine-induced immune dysregulation, and support the hypothesis of a switch from a predominant type 1 state to a predominant type 2 condition in HIV infection. C1 NCI,EXPTL IMMUNOL BRANCH,BETHESDA,MD 20892. NCI,METAB BRANCH,BETHESDA,MD 20892. NIAID,PARASIT DIS LAB,BETHESDA,MD 20892. DNAX RES INST MOLEC & CELLULAR BIOL INC,PALO ALTO,CA 94304. WILFORD HALL USAF MED CTR,HIV UNIT,SAN ANTONIO,TX 78236. RI Wynn, Thomas/C-2797-2011; Hendrix, Craig/G-4182-2014 OI Hendrix, Craig/0000-0002-5696-8665 NR 51 TC 355 Z9 355 U1 0 U2 5 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 FEB PY 1994 VL 93 IS 2 BP 768 EP 775 DI 10.1172/JCI117031 PG 8 WC Medicine, Research & Experimental SC Research & Experimental Medicine GA MY296 UT WOS:A1994MY29600042 PM 8113410 ER PT J AU KANBER, H BAR, SX NORRIS, PE BECKHAM, C PACER, M AF KANBER, H BAR, SX NORRIS, PE BECKHAM, C PACER, M TI OPTIMIZATION OF SELECTIVE-AREA GROWTH OF GAAS BY LOW-PRESSURE ORGANOMETALLIC VAPOR-PHASE EPITAXY FOR MONOLITHIC INTEGRATED-CIRCUITS SO JOURNAL OF ELECTRONIC MATERIALS LA English DT Article; Proceedings Paper CT 6th Biennial Workshop on Organometallic Vapor Phase Epitaxy CY MAR 21-25, 1993 CL PALM SPRINGS, CA DE GAAS METAL SEMICONDUCTOR FIELD-EFFECT TRANSISTOR (MESFET) DEVICES; LOW PRESSURE ORGANOMETALLIC VAPOR PHASE EPITAXY (OMVPE); SELECTIVE AREA EPITAXY OF GAAS ID MOVPE AB GaAs MESFET device structures have been grown on silicon nitride or silicon dioxide masked 50 and 76 mm GaAs substrates by low pressure organometallic vapor phase epitaxy. Very smooth, featureless morphology and 100 percent selectivity of GaAs islands have been achieved over a range of growth conditions. Optimization of the GaAs p-buffer of the field effect transistor structure has led to improved device performance, including increased breakdown voltage. Device characteristics of the 0.5 mum gate low noise metal semiconductor field-effect transistors fabricated on these islands show good performance and wafer to wafer reproducibility on the second device lot. C1 NZ APPL TECHNOL,CAMBRIDGE,MA 02139. EMCORE CORP,SOMERSET,NJ 08873. WRIGHT LAB,WRIGHT PATTERSON AFB,OH 45433. RP KANBER, H (reprint author), HUGHES AIRCRAFT CO,DIV MICROELECTR CIRCUITS,TORRANCE,CA 90509, USA. NR 9 TC 1 Z9 1 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 FEB PY 1994 VL 23 IS 2 BP 159 EP 166 DI 10.1007/BF02655263 PG 8 WC Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Physics, Applied SC Engineering; Materials Science; Physics GA MX217 UT WOS:A1994MX21700017 ER PT J AU LASSEN, PM HARRIS, MJ KEARSE, WS ARGUESO, LR AF LASSEN, PM HARRIS, MJ KEARSE, WS ARGUESO, LR TI LAPAROSCOPIC MANAGEMENT OF INCIDENTALLY NOTED OMPHALOMESENTERIC DUCT REMNANT SO JOURNAL OF ENDOUROLOGY LA English DT Article AB An adolescent undergoing laparoscopic varicocele ligation was incidentally found to have a persistent omphalomesenteric duct remnant. The fibrous band coursing between the umbilicus and terminal ileum was resected laparoscopically without difficulty. Remnants of the type presented herein should be removed to prevent subsequent complications. RP LASSEN, PM (reprint author), PSSU,WHMC,JOINT MIL MED COMMAND,DEPT UROL,2200 BERGQUIST DR,SUITE 1,LACKLAND AFB,TX 78236, USA. NR 5 TC 11 Z9 12 U1 0 U2 0 PU MARY ANN LIEBERT INC PUBL PI LARCHMONT PA 2 MADISON AVENUE, LARCHMONT, NY 10538 SN 0892-7790 J9 J ENDOUROL JI J. Endourol. PD FEB PY 1994 VL 8 IS 1 BP 49 EP 51 DI 10.1089/end.1994.8.49 PG 3 WC Urology & Nephrology SC Urology & Nephrology GA NA304 UT WOS:A1994NA30400012 PM 8186784 ER PT J AU SCHIMMELS, SA PALAZOTTO, AN AF SCHIMMELS, SA PALAZOTTO, AN TI NONLINEAR GEOMETRIC AND MATERIAL BEHAVIOR OF SHELL STRUCTURES WITH LARGE STRAINS SO JOURNAL OF ENGINEERING MECHANICS-ASCE LA English DT Article ID SHEAR DEFORMATION-THEORY; TRANSVERSE-SHEAR; LAMINATED SHELLS; FORMULATION; DISPLACEMENT; PRESSURE; ELEMENT AB This paper presents an approach for a general laminated shell geometry describable by orthogonal curvilinear coordinates. The theory includes through-the-thickness parabolic distribution of transverse shear stress, transformation of Cauchy stress-strain relations into Lagrangian coordinates, and a layered elastic-plastic analyses. Additionally, a simplified approach that allows large displacements and rotations is incorporated. The theory is cast into a displacement-based finite-clement formulation and then specialized to cylindrical and spherical geometry. The theory is then applied to the isotropic and transversely isotropic laminated shells. Results incorporating the Cauchy-Lagrangian transformation with through-the-thickness strain show a slightly more flexible response than in published results that are based on inextensible assumptions. These problems also indicate that the usual locking associated with shell elements is eliminated. RP SCHIMMELS, SA (reprint author), USAF,INST TECHNOL,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433, USA. NR 30 TC 6 Z9 6 U1 0 U2 1 PU ASCE-AMER SOC CIVIL ENGINEERS PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2398 SN 0733-9399 J9 J ENG MECH-ASCE JI J. Eng. Mech.-ASCE PD FEB PY 1994 VL 120 IS 2 BP 320 EP 345 DI 10.1061/(ASCE)0733-9399(1994)120:2(320) PG 26 WC Engineering, Mechanical SC Engineering GA MT463 UT WOS:A1994MT46300008 ER PT J AU FOLEY, WL EDWARDS, RC JACOBS, LF AF FOLEY, WL EDWARDS, RC JACOBS, LF TI PATIENT-CONTROLLED ANALGESIA - A COMPARISON OF DOSING REGIMENS FOR POSTSURGICAL PAIN SO JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY LA English DT Article ID POSTOPERATIVE PAIN; INFUSION; MEPERIDINE; MANAGEMENT; SCALE; PCA C1 USAF,CLIN PHARM SERV,TRAVIS AFB,CA 94535. RP FOLEY, WL (reprint author), USAF,DGMC,SGDO,DEPT ORAL MAXILLOFACIAL SURG,101 BODIN CIR,TRAVIS AFB,CA 94535, USA. NR 18 TC 5 Z9 5 U1 1 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 FEB PY 1994 VL 52 IS 2 BP 155 EP 159 DI 10.1016/0278-2391(94)90399-9 PG 5 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA MU665 UT WOS:A1994MU66500013 PM 8295050 ER PT J AU EDGIN, WA HIGH, CL FOWLER, CB FINN, RA AF EDGIN, WA HIGH, CL FOWLER, CB FINN, RA TI WELL-CIRCUMSCRIBED RECURRING FACIAL MASS SO JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY LA English DT Article ID PAPILLARY ENDOTHELIAL HYPERPLASIA; GD-DTPA ENHANCEMENT; THYROGLOSSAL DUCT; SHORT SEQUENCES; JUGULAR BULB; CAROTID-BODY; DERMOID CYST; MR; CT; NECK C1 EHRLING BERGQUIST HOSP,DEPT ORAL & MAXILLOFACIAL SURG,OFFUTT AFB,NE. USAF,WILFORD HALL MED CTR,DEPT ORAL PATHOL,LACKLAND AFB,TX. UNIV TEXAS,SW MED CTR,DEPT ORAL & MAXILLOFACIAL SURG,DALLAS,TX. VET AFFAIRS MED CTR,OMAHA,NE. NR 44 TC 1 Z9 1 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 FEB PY 1994 VL 52 IS 2 BP 177 EP 182 DI 10.1016/0278-2391(94)90406-5 PG 6 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA MU665 UT WOS:A1994MU66500020 PM 8295054 ER PT J AU MCCURNIN, D SHEPLOCK, G AF MCCURNIN, D SHEPLOCK, G TI INTERACTIVE COMPUTE PROGRAM FOR TRAINING IN THE USE OF EXTRACORPOREAL MEMBRANE-OXYGENATION (ECMO) SO JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY LA English DT Meeting Abstract C1 USAF,WILFORD HALL MED CTR,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 0735-1097 J9 J AM COLL CARDIOL JI J. Am. Coll. Cardiol. PD FEB PY 1994 SI SI BP A385 EP A385 PG 1 WC Cardiac & Cardiovascular Systems SC Cardiovascular System & Cardiology GA PP518 UT WOS:A1994PP51801523 ER PT J AU ELLERBROEK, BL AF ELLERBROEK, BL TI FIRST-ORDER PERFORMANCE EVALUATION OF ADAPTIVE-OPTICS SYSTEMS FOR ATMOSPHERIC-TURBULENCE COMPENSATION IN EXTENDED-FIELD-OF-VIEW ASTRONOMICAL TELESCOPES SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION LA English DT Article ID LASER GUIDE STARS; IMAGING PERFORMANCE; ANISOPLANATISM; LIGHT AB An approach is presented for evaluating the performance achieved by a closed-loop adaptive-optics system that is employed with an astronomical telescope. This method applies to systems incorporating one or several guide stars, a wave-front reconstruction algorithm that is equivalent to a matrix multiply, and one or several deformable mirrors that are optically conjugate to different ranges. System performance is evaluated in terms of residual mean-square phase distortion and the associated optical transfer function. This evaluation accounts for the effects of the atmospheric turbulence C-n(2)(h) and wind profiles, the wave-front sensor and deformable-mirror fitting error, the sensor noise, the control-system bandwidth, and the net anisoplanatism for a given constellation of natural and/or laser guide stars. Optimal wave-front reconstruction algorithms are derived that minimize the telescope's field-of-view-averaged residual mean-square phase distortion. Numerical results are presented for adaptive-optics configurations incorporating a single guide star and a single deformable mirror, multiple guide stars and a single deformable mirror, or multiple guide stars and two deformable mirrors. RP ELLERBROEK, BL (reprint author), USAF,PHILLIPS LAB,STARFIRE OPT RANGE,KIRTLAND AFB,NM 87117, USA. NR 28 TC 210 Z9 214 U1 2 U2 13 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0740-3232 J9 J OPT SOC AM A JI J. Opt. Soc. Am. A-Opt. Image Sci. Vis. PD FEB PY 1994 VL 11 IS 2 BP 783 EP 805 DI 10.1364/JOSAA.11.000783 PG 23 WC Optics SC Optics GA MV331 UT WOS:A1994MV33100039 ER PT J AU JELONEK, MP FUGATE, RQ LANGE, WJ SLAVIN, AC RUANE, RE CLEIS, RA AF JELONEK, MP FUGATE, RQ LANGE, WJ SLAVIN, AC RUANE, RE CLEIS, RA TI CHARACTERIZATION OF ARTIFICIAL GUIDE STARS GENERATED IN THE MESOSPHERIC SODIUM LAYER WITH A SUM-FREQUENCY LASER SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION LA English DT Article ID OPTICAL MOLASSES; MULTILEVEL ATOMS; ASTRONOMY AB We generated resonant-fluorescent artificial guide stars in the Earth's mesospheric sodium layer with an 840-Hz, 10-mJ sum-frequency laser operating at 589 nm and have conducted experiments to characterize the guide stars for use as beacons for atmospheric compensation with adaptive optics. We made high-resolution images with a 1.5-m telescope and CCD camera with exposures from 0.1 to 10.1 s of spots as small as 1.64 times the diffraction limit. We also used an intensified charge-injection-device camera to record live video at frame rates of 30 Hz. Using a photomultiplier tube with both the 1.5-m telescope and a 14-in. telescope, we collected temporal data and calculated the sodium-layer column densities of 2-3 x 10(13)/m(2) from long pulse measurements. We have observed the phenomenon of optical pumping of the sodium layer by propagating circularly polarized light at peak power densities incident on the layer of 1.0 mW/cm(2). Propagating circularly polarized light gives a 41-48% increase in fluorescent return signal over linearly polarized light. Artificial guide stars are suitable for atmospheric compensation with the use of adaptive optics. C1 ROCKWELL INT CORP,POWER SYST,ALBUQUERQUE,NM 87117. OPT SCI CO,PLACENTIA,CA 92670. RP JELONEK, MP (reprint author), USAF,PHILLIPS LAB,STARFIRE OPT RANGE,KIRTLAND AFB,NM 87117, USA. NR 17 TC 16 Z9 21 U1 0 U2 1 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0740-3232 J9 J OPT SOC AM A JI J. Opt. Soc. Am. A-Opt. Image Sci. Vis. PD FEB PY 1994 VL 11 IS 2 BP 806 EP 812 DI 10.1364/JOSAA.11.000806 PG 7 WC Optics SC Optics GA MV331 UT WOS:A1994MV33100040 ER PT J AU COHEN, DL MONTALVO, MA TURNBULL, GP AF COHEN, DL MONTALVO, MA TURNBULL, GP TI MEDICAL SUPPORT FOR A MAJOR MILITARY AIR SHOW - THE RAF MILDENHALL MEDICAL EMERGENCY SUPPORT PLAN SO JOURNAL OF TRAUMA-INJURY INFECTION AND CRITICAL CARE LA English DT Article AB Major air shows are potentially extremely hazardous events. They may attract large crowds numbering in the hundreds of thousands, and the communities in which they are held are usually not equipped to provide emergency services for so many individuals. It is not unusual for several hundred spectators to develop symptoms of medical illness substantial enough to require some elements of medical intervention. Added to this is the potential for and very real hazard of a major airplane crash or vehicular crash. Effective planning for such events is a complex process requiring coordination among various agencies. The Royal Air Force Mildenhall Medical Emergency Support Plan is an example of an approach used successfully to provide support for one of the largest military air shows in the world. We present a comprehensive approach to providing urgent services for up to 700 potential casualties including on-scene definitive stabilization for those most seriously injured. C1 RAF,USAF,48TH MED GRP,LAKENHEATH,ENGLAND. SUFFOLK AMBULANCE SERV,IPSWICH,SUFFOLK,ENGLAND. UNIFORMED SERV UNIV HLTH SCI,F EDWARD EBERT SCH MED,DEPT PEDIAT,BETHESDA,MD 20814. NR 10 TC 1 Z9 1 U1 0 U2 0 PU WILLIAMS & WILKINS PI BALTIMORE PA 351 WEST CAMDEN ST, BALTIMORE, MD 21201-2436 SN 1079-6061 J9 J TRAUMA JI J. Trauma-Injury Infect. Crit. Care PD FEB PY 1994 VL 36 IS 2 BP 237 EP 244 DI 10.1097/00005373-199402000-00017 PG 8 WC Critical Care Medicine; Surgery SC General & Internal Medicine; Surgery GA MY356 UT WOS:A1994MY35600017 PM 8114144 ER PT J AU DIVELY, RW AF DIVELY, RW TI CRACKS IN CONCRETE AND THEIR EFFECT ON COATINGS AND LININGS SO MATERIALS PERFORMANCE LA English DT Article AB Cracked concrete creates a complex problem for coating system designers. The extent to which joint design is efficient and to which the coating system design takes into account natural stresses such as settling largely determines how well the coating or lining performs. To attain it successful system, the coating engineer must consider all aspects of each job before determining the best approach. RP DIVELY, RW (reprint author), JOHNSON CONTROLS WORLD SERV INC,LBS-6380,POB 4608,PATRICK AFB,FL 32925, USA. NR 3 TC 1 Z9 1 U1 0 U2 0 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 FEB PY 1994 VL 33 IS 2 BP 44 EP 45 PG 2 WC Materials Science, Characterization & Testing SC Materials Science GA MW843 UT WOS:A1994MW84300015 ER PT J AU WILLIAMS, H BLUE, B LANGLOIS, PF AF WILLIAMS, H BLUE, B LANGLOIS, PF TI DO FOLLOW-UP HOME VISITS BY MILITARY NURSES OF CHRONICALLY ILL MEDICAL PATIENTS REDUCE READMISSIONS SO MILITARY MEDICINE LA English DT Article AB The study included patients admitted three times or more. Patients were 45 years of age or older and lived within 25 miles of the hospital. Patients were randomly assigned to a control group and those that received home visits. Patients were visited by the RN within 7 days after discharge. Each patient had nine visits over the next 3 months. Seventy-five patients participated in this study. The average age of the sample was 66.12 +/- 16 years. There was an equal number of men and women in the two groups. The nurses made 130 home visits. During these visits, 38 interventions were accomplished. These interventions allowed the patients to remain at home. Prior to this study, the incidence of readmission for these patients was notable. This study showed that home visits with appropriate interventions by military staff nurses reduces the incidence of rehospitalization. RP WILLIAMS, H (reprint author), WILFORD HALL USAF MED CTR,2200 BERQUIST DR,LACKLAND AFB,TX 78236, USA. NR 0 TC 3 Z9 3 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 1994 VL 159 IS 2 BP 141 EP 144 PG 4 WC Medicine, General & Internal SC General & Internal Medicine GA NB549 UT WOS:A1994NB54900015 PM 8202242 ER PT J AU HASKE, T AF HASKE, T TI A SIMPLE SUCTION DEVICE FOR AEROMEDICAL EVACUATION SO MILITARY MEDICINE LA English DT Article AB A design for a continuous multi-port suction device for C-130 tactical aeromedical evacuation is presented. It utilizes existing aircraft systems and can be built in minutes using little more than plastic tubing. The concept could also be extended to other aircraft. RP HASKE, T (reprint author), USAF,WILFORD HALL MED CTR,ISOF,1550 WURTSMITH ST,SUITE 6,LACKLAND AFB,TX 78236, 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 FEB PY 1994 VL 159 IS 2 BP 147 EP 148 PG 2 WC Medicine, General & Internal SC General & Internal Medicine GA NB549 UT WOS:A1994NB54900017 PM 8202244 ER PT J AU SATIN, AJ LEVENO, KJ SHERMAN, ML MCINTIRE, D AF SATIN, AJ LEVENO, KJ SHERMAN, ML MCINTIRE, D TI HIGH-DOSE OXYTOCIN - 20-MINUTE VERSUS 40-MINUTE DOSAGE INTERVAL SO OBSTETRICS AND GYNECOLOGY LA English DT Article ID DYSFUNCTIONAL LABOR; AUGMENTATION; INDUCTION; STIMULATION; TRIAL AB Objective: To determine whether an increase in the oxytocin dosing interval would decrease the incidence of uterine hyperstimulation. Methods: This study included 1801 consecutive pregnancies receiving high-dose oxytocin. Oxytocin was used for labor augmentation in 1167 and induction in 634 women. Twenty- and 40-minute dosage intervals were compared. The study period was based on an 80% likelihood of detecting 5 and 10% differences in the cesarean and hyperstimulation rates, respectively. Statistics were analyzed with chi(2), Fisher, and Wilcoxon rank-sum tests where appropriate. Multivariate logistic regression and analysis of covariance were used to control for confounding demographic variables. Results: Comparison of the 20- and 40-minute regimens for labor induction yielded no differences in the rates of cesarean delivery for dystocia (16 versus 19%) or fetal distress (5 versus 6%). The 20-minute regimen for augmentation was associated with a significant reduction in cesarean for dystocia (8 versus 12%; P = .05). The incidence of uterine hyperstimulation was greater with the 20-minute than the 40-minute regimen for induction (40 versus 31%; P = .02), but not for augmentation (31 versus 28%). Neonatal outcomes were unaffected by the dosage interval for both augmentation and induction. Conclusion: A 40-minute dosing interval for high-dose oxytocin offers no clear advantage over a 20-minute interval. Both regimens were safe and efficient, with no differences in perinatal outcome. The 20-minute interval was associated with fewer cesareans for dystocia when used for labor augmentation, whereas the 40-minute interval resulted in less hyperstimulation when used for labor induction, C1 WILFORD HALL USAF MED CTR,DEPT OBSTET & GYNECOL,LACKLAND AFB,TX 78236. UNIV TEXAS,SW MED CTR,DEPT OBSTET & GYNECOL,DALLAS,TX 75235. UNIV TEXAS,SW MED CTR,ACAD COMP SERV,DALLAS,TX. NR 11 TC 37 Z9 37 U1 0 U2 1 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 FEB PY 1994 VL 83 IS 2 BP 234 EP 238 PG 5 WC Obstetrics & Gynecology SC Obstetrics & Gynecology GA MT964 UT WOS:A1994MT96400013 PM 8290186 ER PT J AU MEALEY, BL AF MEALEY, BL TI BILATERAL GUSTATORY SWEATING AS A SIGN OF DIABETIC NEUROPATHY SO ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTICS LA English DT Article ID FREYS SYNDROME; PAROTIDECTOMY AB Gustatory sweating is a relatively common sequela to parotidectomy and is almost always unilateral in nature. This article presents a case of bilateral gustatory sweating in a patient with no history of facial trauma or surgery who was undergoing periodontal therapy. A thorough examination determined the cause, of diaphoresis to be autonomic neuropathy as a result of a 26-year history of Type II diabetes mellitus. Few cases of this rare complication of diabetes-have been described, and the current case represents the first report in the dental literature. RP MEALEY, BL (reprint author), WILFORD HALL USAF MED CTR,DEPT PERIODONT,DST,2450 PEPPERRELL ST,LACKLAND AFB,TX 78236, USA. NR 15 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 1079-2104 J9 ORAL SURG ORAL MED O JI Oral Surg. Oral Med. Oral Pathol. Oral Radiol. Endod. PD FEB PY 1994 VL 77 IS 2 BP 113 EP 115 DI 10.1016/0030-4220(94)90270-4 PG 3 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA MZ508 UT WOS:A1994MZ50800002 PM 8139825 ER PT J AU COSTANTINO, PD FRIEDMAN, CD AF COSTANTINO, PD FRIEDMAN, CD TI SOFT-TISSUE AUGMENTATION AND REPLACEMENT IN THE HEAD AND NECK - GENERAL-CONSIDERATIONS SO OTOLARYNGOLOGIC CLINICS OF NORTH AMERICA LA English DT Article C1 WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. YALE UNIV,SCH MED,NEW HAVEN,CT 06510. RP COSTANTINO, PD (reprint author), LOYOLA UNIV,STRITCH SCH MED,DEPT OTOLARYNGOL HEAD & NECK SURG,2160 S 1ST AVE,MAYWOOD,IL 60153, USA. NR 17 TC 9 Z9 10 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 FEB PY 1994 VL 27 IS 1 BP 1 EP 24 PG 24 WC Otorhinolaryngology SC Otorhinolaryngology GA MX758 UT WOS:A1994MX75800002 PM 8159415 ER PT J AU FUJITANI, RM CULL, DL DAWSON, DL AF FUJITANI, RM CULL, DL DAWSON, DL TI VASCULAR GRAFTS IN HEAD AND NECK RECONSTRUCTIVE SURGERY SO OTOLARYNGOLOGIC CLINICS OF NORTH AMERICA LA English DT Article ID INTERNAL CAROTID-ARTERY; BALLOON TEST OCCLUSION; DELAYED CEREBROVASCULAR CONSEQUENCES; EXTERNAL CERVICAL IRRADIATION; SQUAMOUS-CELL CARCINOMA; OCULAR PNEUMOPLETHYSMOGRAPHY; RADIATION-THERAPY; SAPHENOUS-VEIN; RESECTION; ENDARTERECTOMY C1 UNIFORMED SERV UNIV HLTH SCI,F EDWARD HEBERT SCH MED,BETHESDA,MD 20814. RP FUJITANI, RM (reprint author), WILFORD HALL USAF MED CTR,PSSG,VASC SURG SECT,59 MW,2200 BERGQUIST DR,SUITE 1,LACKLAND AFB,TX 78236, USA. NR 98 TC 6 Z9 7 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 FEB PY 1994 VL 27 IS 1 BP 91 EP 123 PG 33 WC Otorhinolaryngology SC Otorhinolaryngology GA MX758 UT WOS:A1994MX75800008 PM 8159430 ER PT J AU MOREHEAD, JM HOLT, GR AF MOREHEAD, JM HOLT, GR TI SOFT-TISSUE RESPONSE TO SYNTHETIC BIOMATERIALS SO OTOLARYNGOLOGIC CLINICS OF NORTH AMERICA LA English DT Article C1 UNIV TEXAS,HLTH SCI CTR,SAN ANTONIO,TX 78284. RP MOREHEAD, JM (reprint author), WILFORD HALL USAF MED CTR,PSSO,2200 BERGQUIST DR,SUITE 1,LACKLAND AFB,TX 78236, USA. NR 7 TC 44 Z9 46 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 FEB PY 1994 VL 27 IS 1 BP 195 EP 201 PG 7 WC Otorhinolaryngology SC Otorhinolaryngology GA MX758 UT WOS:A1994MX75800013 PM 8159421 ER PT J AU COSTANTINO, PD AF COSTANTINO, PD TI SYNTHETIC BIOMATERIALS FOR SOFT-TISSUE AUGMENTATION AND REPLACEMENT IN THE HEAD AND NECK SO OTOLARYNGOLOGIC CLINICS OF NORTH AMERICA LA English DT Article ID BONE-GRAFT SUBSTITUTE; FOREIGN-BODY REACTION; HYDROXYAPATITE CEMENT; POROUS HYDROXYAPATITE; FRONTAL-SINUS; VOCAL CORD; IMPLANTS; PROPLAST; RECONSTRUCTION; TITANIUM C1 WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. RP COSTANTINO, PD (reprint author), LOYOLA UNIV,STRITCH SCH MED,DEPT OTOLARYNGOL HEAD & NECK SURG,2160 S 1ST AVE,MAYWOOD,IL 60153, USA. NR 57 TC 19 Z9 20 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 FEB PY 1994 VL 27 IS 1 BP 223 EP 262 PG 40 WC Otorhinolaryngology SC Otorhinolaryngology GA MX758 UT WOS:A1994MX75800016 PM 8159424 ER PT J AU ENLOE, CL AF ENLOE, CL TI HIGH-RESOLUTION RETARDING POTENTIAL ANALYZER SO REVIEW OF SCIENTIFIC INSTRUMENTS LA English DT Note ID VARIABLE GEOMETRY AB A simple electrostatic retarding potential analyzer (RPA) configuration is described that gives a true measure of charged particle energy irrespective of the angle of incidence of the particles. The device has an inherently high energy resolution (Delta E/E < 0.01). The device eliminates errors in particle energy measurement usually associated with planar gridded RPAs. Electrostatic models and results from an experimental prototype are presented. C1 USAF,PHILLIPS LAB,BEDFORD,MA 01731. NR 11 TC 21 Z9 21 U1 0 U2 4 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0034-6748 J9 REV SCI INSTRUM JI Rev. Sci. Instrum. PD FEB PY 1994 VL 65 IS 2 BP 507 EP 508 DI 10.1063/1.1145167 PG 2 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA MX032 UT WOS:A1994MX03200041 ER PT J AU WAGNER, BJ WOODWARD, PJ AF WAGNER, BJ WOODWARD, PJ TI MAGNETIC-RESONANCE EVALUATION OF CONGENITAL UTERINE ANOMALIES SO SEMINARS IN ULTRASOUND CT AND MRI LA English DT Article C1 UNIV UTAH,MED CTR,DEPT RADIOL,50 N MED DR,SALT LAKE CITY,UT 84132. WILFORD HALL USAF MED CTR,LACKLAND AFB,TX 78236. NR 0 TC 17 Z9 17 U1 0 U2 0 PU W B SAUNDERS CO PI PHILADELPHIA PA INDEPENDENCE SQUARE WEST CURTIS CENTER, STE 300, PHILADELPHIA, PA 19106-3399 SN 0887-2171 J9 SEMIN ULTRASOUND CT JI Semin. Ultrasound CT MRI PD FEB PY 1994 VL 15 IS 1 BP 4 EP 17 DI 10.1016/S0887-2171(05)80025-3 PG 14 WC Radiology, Nuclear Medicine & Medical Imaging SC Radiology, Nuclear Medicine & Medical Imaging GA MZ830 UT WOS:A1994MZ83000003 PM 8179942 ER PT J AU DONAHUE, RA RESTAINO, SR KEIL, SL AF DONAHUE, RA RESTAINO, SR KEIL, SL TI SOLAR AND STELLAR CHROMOSPHERIC CONTRAST .1. THE DISK-INTEGRATED SOLAR K-LINE SO SOLAR PHYSICS LA English DT Article ID VARIABILITY; SUN AB We present an analysis of disk-integrated spectra of the Ca II K line (3933.68 angstrom). The selection of parameters in the line profile, and the correlations between them, follow the work of Smith (1960), but represent an innovative aspect in the fact that our data are spatially integrated. Therefore, the subsequent identification of correlations between line-profile parameters in disk-integrated solar spectra may be useful in identifying similar correlations in high-resolution spectra of solar-like stars. Significant correlations are found between a derived chromospheric contrast parameter and K2 asymmetry, K3 intensity, and the integrated K-line flux. The derived filling factors of the active regions that mark rotation and the total active chromospheric network agree well with estimates from contemporaneous images of the Sun. C1 USAF, PL, LIMI, ALBUQUERQUE, NM USA. USAF, PL, GSSP, NATL SOLAR OBSERV, SUNSPOT, NM USA. RP HARVARD SMITHSONIAN CTR ASTROPHYS, CAMBRIDGE, MA 02138 USA. NR 24 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0038-0938 EI 1573-093X J9 SOL PHYS JI Sol. Phys. PD FEB PY 1994 VL 149 IS 2 BP 257 EP 265 DI 10.1007/BF00690614 PG 9 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA MX569 UT WOS:A1994MX56900005 ER PT J AU JOHNSONFREESE, J AF JOHNSONFREESE, J TI DEVELOPMENT OF A GLOBAL EDOS - POLITICAL SUPPORT AND CONSTRAINTS SO SPACE POLICY LA English DT Article AB The development of a global environmental and disaster satellite observation system (EDOS) has recently received attention, particularly as a potential cooperative project with the USA and Japan as the initiators. Such a system, proponents contend, would provide valuable and potentially lifesaving information to developed and particularly developing countries which might not otherwise have such information available, as well as provide a vehicle to strengthen ties between the USA and Japan at a time when strife over trade issues is too often emphasized. The initiation of such a project, however, has not been without difficulty. Beyond the technical issues, there has been hesitation and scepticism on the part of some national space players concerning the project, often motivated by parochial political concerns rather than conceptual or technical issues. The focus of this article is an examination of those political factors which have acted as impetus and barriers for the initiative, using interviews with programme participants, direct author observation at related meetings and internal documents and correspondence. RP JOHNSONFREESE, J (reprint author), USAF,AIR WAR COLL AIR UNIV,325 CHENNAULT CIRCLE,MAXWELL AFB,AL 36112, USA. NR 7 TC 1 Z9 1 U1 0 U2 0 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0265-9646 J9 SPACE POLICY JI Space Policy PD FEB PY 1994 VL 10 IS 1 BP 45 EP 55 DI 10.1016/0265-9646(94)90039-6 PG 11 WC International Relations; Social Sciences, Interdisciplinary SC International Relations; Social Sciences - Other Topics GA MX955 UT WOS:A1994MX95500005 ER PT J AU MELLINGER, JD PONSKY, JL AF MELLINGER, JD PONSKY, JL TI SURGICAL ENDOSCOPY FELLOWSHIPS - WHAT DIFFERENCE DO THEY MAKE SO SURGICAL ENDOSCOPY-ULTRASOUND AND INTERVENTIONAL TECHNIQUES LA English DT Article DE TRAINING; FELLOWSHIPS; RESIDENT EDUCATION AB This study was conducted to evaluate the career impact of a formalized surgical endoscopy fellowship. Sixteen surgeons who have completed this training were surveyed via questionnaire. Twelve individuals were found to be in teaching settings, 10 had academic appointments, and 12 had published in the endoscopic and gastrointestinal literature. Gastrointestinal endoscopy constituted a mean of 28% of these surgeons' practices. Gastrointestinal surgery was the focus of a mean of 51% of their operative experience, and laparoscopic surgery constituted a mean of 40% of their surgical activity. Twelve of these individuals performed ERCP as part of their clinical practice, and 11 performed advanced laparoscopic surgical procedures. Relationships with nonsurgical endoscopic colleagues were considered positive for 5 surgeons, negative for 7, and neutral for 4. Professional relationships with nongastroenterologic physicians were uniformly positive or neutral. We conclude that formal surgical endoscopy fellowships facilitate subsequent academic and educational activity, foster surgical practices oriented toward gastrointestinal disease, and impact relationships with nonsurgical colleagues in a variable fashion. RP MELLINGER, JD (reprint author), USAF,MED CTR,SGHS,DEPT SURG,4881 SUGAR MAPLE DR,WRIGHT PATTERSON AFB,OH 45433, USA. NR 0 TC 8 Z9 8 U1 0 U2 0 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0930-2794 J9 SURG ENDOSC-ULTRAS JI Surg. Endosc.-Ultrason. Interv. Tech. PD FEB PY 1994 VL 8 IS 2 BP 86 EP 89 DI 10.1007/BF00316615 PG 4 WC Surgery SC Surgery GA MY158 UT WOS:A1994MY15800002 PM 8165490 ER PT J AU DAY, AE ZABINSKI, JS AF DAY, AE ZABINSKI, JS TI A PARAMETRIC STUDY OF PULSED-LASER DEPOSITED NIOBIUM DISELENIDE THIN-FILM GROWTH SO THIN SOLID FILMS LA English DT Article ID EVAPORATION AB Niobium diselenide has potential for use as a solid lubricant, but to achieve the optimal properties of low friction coefficient, high conductivity and oxidation resistance, the Se/Nb ratio and crystallinity must be carefully controlled. It has been shown that pulsed laser deposition (PLD) permits the required degree of control, even over films with complex stoichiometries. In this study, a designed experimental approach was chosen to look at the major trends across the upper and lower limits of the PLD process for niobium diselenide. Film chemistry and crystallinity were evaluated using X-ray photoelectron spectroscopy, Rutherford backscattering spectroscopy, and glancing-angle X-ray diffraction. This study has shown that film chemistry can be changed from substoichiometric to superstoichiometric, and crystallinity varied between amorphous and crystalline, by appropriate choice of PLD parameters. The property correlations developed and the acquisition system used will be described. RP DAY, AE (reprint author), USAF,WRIGHT LAB,MLB,WRIGHT PATTERSON AFB,OH 45433, USA. NR 20 TC 1 Z9 1 U1 1 U2 4 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 FEB 1 PY 1994 VL 238 IS 2 BP 207 EP 212 DI 10.1016/0040-6090(94)90057-4 PG 6 WC Materials Science, Multidisciplinary; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter SC Materials Science; Physics GA MU941 UT WOS:A1994MU94100008 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 RESONANT COUPLING OF ORBITAL ANGULAR-MOMENTUM COMPONENTS IN THE BARRIER WITH ANALOGOUS COMPONENTS IN THE WELL IN INXGA1-XAS-GAAS QUANTUM-WELLS SO APPLIED PHYSICS LETTERS LA English DT Article ID GAAS AB When narrow InGaAs-GaAs quantum wells (QWs) are resonantly excited by the GaAs free exciton in the barrier, the intensity of the heavy-hole free exciton (HHFE) in the well oscillates with applied magnetic field. In the presence of a magnetic field, the magnetically field split angular momentum components of the GaAs barrier free exciton resonantly excite magnetically field split angular momentum components of the HHFE in the well. The angular momentum components of the HHFE in the well are expected to move in and out of resonance with the angular momentum components of the free exciton in the barrier as the magnetic field changes resulting in the observed intensity oscillations of the HHFE emission. When the QW is excited at energies slightly above the GaAs band-gap energy the HHFE emission intensity is greatly reduced and the intensity oscillations with magnetic field disappear. C1 WRIGHT LAB,SOLID STATE ELECTR DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. RP REYNOLDS, DC (reprint author), WRIGHT STATE UNIV,UNIV RES CTR,DAYTON,OH 45435, USA. NR 4 TC 0 Z9 0 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 31 PY 1994 VL 64 IS 5 BP 604 EP 606 DI 10.1063/1.111063 PG 3 WC Physics, Applied SC Physics GA MU633 UT WOS:A1994MU63300025 ER PT J AU RYNKIEWICZ, DL LIU, LX AF RYNKIEWICZ, DL LIU, LX TI HUMAN EHRLICHIOSIS IN NEW-ENGLAND SO NEW ENGLAND JOURNAL OF MEDICINE LA English DT Letter ID TICKS C1 BETH ISRAEL HOSP,BOSTON,MA 02215. RP RYNKIEWICZ, DL (reprint author), DAVIS MONTHAN AFB,TUCSON,AZ 85707, USA. NR 5 TC 11 Z9 11 U1 0 U2 0 PU MASS MEDICAL SOC PI BOSTON PA 10 SHATTUCK, BOSTON, MA 02115 SN 0028-4793 J9 NEW ENGL J MED JI N. Engl. J. Med. PD JAN 27 PY 1994 VL 330 IS 4 BP 292 EP 293 DI 10.1056/NEJM199401273300418 PG 2 WC Medicine, General & Internal SC General & Internal Medicine GA MR496 UT WOS:A1994MR49600027 PM 8272102 ER PT J AU DIAZ, MJ CHINJE, E KENTISH, P JARNOT, B GEORGE, M GIBSON, G AF DIAZ, MJ CHINJE, E KENTISH, P JARNOT, B GEORGE, M GIBSON, G TI INDUCTION OF CYTOCHROME P4504A BY THE PEROXISOME PROLIFERATOR PERFLUORO-N-OCTANOIC ACID SO TOXICOLOGY LA English DT Article DE CYTOCHROME P4504A1; PERFLURO-N-OCTANOIC ACID; PEROXISOME PROLIFERATION; ENZYME INDUCTION ID LAURIC-ACID; FATTY-ACIDS; HEPATIC CYTOCHROME-P-450; MESSENGER-RNA; GENE FAMILY; RAT-LIVER; CLOFIBRATE; MECHANISMS; RECEPTOR; CARCINOGENESIS AB The influence of a single dose of the peroxisome proliferator, perfluoro-n-octanoic acid (PFOA) on hepatic and renal mixed-function oxidase activities has been examined in rats. Peroxisome proliferation was confirmed by increases in peroxisomal palmitoyl-CoA oxidation and carnitine acetyl transferase activity, particularly in liver. The liver was also more susceptible than the kidney to PFOA-dependent induction of the 12-hydroxylation of lauric acid, suggesting induction of the CYP4A sub-family. This was further confirmed by Western blot analyses, wherein an anti-CYP4A1 antibody revealed a substantial PFOA-dependent induction of CYP4A1 in a pattern similar to that observed for the classical peroxisome proliferator, clofibrate. In addition, using a cDNA probe to CYP4A1 in Northern blot analysis, PFOA treatment resulted in a marked increase in the steady state level of CYP4A1 mRNA, again more extensively in liver than in kidney. Taken collectively, our data provide compelling evidence that PFOA, like other peroxisome proliferators, is also an inducer of the CYP4A sub-family. C1 UNIV SURREY,SCH BIOL SCI,MOLEC TOXICOL GRP,GUILDFORD GU2 5XH,SURREY,ENGLAND. USAF,DIV TOXICOL,HARRY G ARMSTRONG AEROSP MED RES LAB,WRIGHT PATTERSON AFB,OH 45433. NR 37 TC 19 Z9 19 U1 0 U2 0 PU ELSEVIER SCI IRELAND LTD PI CLARE PA CUSTOMER RELATIONS MANAGER, BAY 15, SHANNON INDUSTRIAL ESTATE CO, CLARE, IRELAND SN 0300-483X J9 TOXICOLOGY JI Toxicology PD JAN 26 PY 1994 VL 86 IS 1-2 BP 109 EP 122 DI 10.1016/0300-483X(94)90056-6 PG 14 WC Pharmacology & Pharmacy; Toxicology SC Pharmacology & Pharmacy; Toxicology GA NB252 UT WOS:A1994NB25200008 PM 8134918 ER PT J AU MOUL, JW SCHANNE, FJ THOMPSON, IM FRAZIER, HA PERETSMAN, SA WETTLAUFER, JN ROZANSKI, TA STACK, RS KREDER, KJ HOFFMAN, KJ AF MOUL, JW SCHANNE, FJ THOMPSON, IM FRAZIER, HA PERETSMAN, SA WETTLAUFER, JN ROZANSKI, TA STACK, RS KREDER, KJ HOFFMAN, KJ TI TESTICULAR CANCER IN BLACKS - A MULTICENTER EXPERIENCE SO CANCER LA English DT Article DE TESTICULAR; CANCER; BLACK RACE; SEMINOMA; NONSEMINOMA ID UNITED-STATES; SEMINOMA; SURVIVAL; TUMORS; WHITES; IMPACT AB Background. The rarity of testis tumor in black patients has made the study of a large series difficult. Much of the epidemiologic and clinical information regarding this neoplasm in this population is in dispute, including data on incidence, prognosis, histologic distribution, age and stage at presentation, and side distribution. Methods. A retrospective review of 66 blacks with testicular tumors from seven military medical centers was performed. Results. Similar results were found for blacks with testis tumor to those of the general testis cancer population regarding prognosis, side distribution, and age of onset for nonseminoma and interstitial tumors. There is a slight increase in the expected number of interstitial tumors in blacks, but the distribution between seminoma and nonseminoma is similar to the general population. The mean age of presentation for seminoma in blacks was younger than that of the general testis cancer population. For testis tumor treated at the same institution, there was an increased delay of diagnosis in blacks compared with whites. The number of new cases of testicular cancer between 1979 and 1991 at one major center was increased for whites but not for blacks. The availability of cisplatin-based combination chemotherapy has resulted in an improved prognosis for blacks, as has already been demonstrated for white populations. Conclusions. Testis tumor in blacks behaves similarly to testis tumor in the general population except that in blacks there are more interstitial tumors and the mean age of presentation for seminoma is younger. Further, there is an increased delay in diagnosis for blacks compared with whites, but the incidence of this tumor in this population does not appear to be increasing. Cisplatin-based chemotherapy has significantly improved survival in this population. C1 WALTER REED ARMY MED CTR, UROL SERV, WASHINGTON, DC USA. BROOKE ARMY MED CTR, UROL SERV, SAN ANTONIO, TX USA. NATL NAVAL MED CTR, UROL SERV, BETHESDA, MD USA. WILFORD HALL USAF MED CTR, UROL SERV, SAN ANTONIO, TX USA. MADIGAN ARMY MED CTR, UROL SERV, TACOMA, WA USA. TRIPLER ARMY MED CTR, UROL SERV, HONOLULU, HI USA. FITZSIMONS ARMY MED CTR, UROL SERV, AURORA, CO USA. UNIFORMED SERV UNIV HLTH SCI, DEPT PREVENT MED & BIOMETR, BETHESDA, MD USA. RP MOUL, JW (reprint author), USUHS, DEPT SURG, 4301 JONES BRIDGE RD, BETHESDA, MD 20814 USA. NR 37 TC 27 Z9 27 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 0008-543X J9 CANCER JI Cancer PD JAN 15 PY 1994 VL 73 IS 2 BP 388 EP 393 DI 10.1002/1097-0142(19940115)73:2<388::AID-CNCR2820730225>3.0.CO;2-Q PG 6 WC Oncology SC Oncology GA MR381 UT WOS:A1994MR38100024 PM 8293405 ER PT J AU GUMBS, G HUANG, DH ZHANG, C MANASREH, MO AF GUMBS, G HUANG, DH ZHANG, C MANASREH, MO TI THEORY FOR THE OSCILLATORY CYCLOTRON-RESONANCE EFFECTIVE-MASS IN A HETEROSTRUCTURE SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID 2-DIMENSIONAL ELECTRON-GAS; FILLED LANDAU-LEVELS; 2 DIMENSIONS; MAGNETIC-FIELDS; HETEROJUNCTIONS; EXCITATIONS; SYSTEMS; GAAS AB The Hartree-Fock treatment of cyclotron resonance (CR) [see A. H. MacDonald, J. Phys. C 18, 1003 (1985)] is generalized by including the correlation contribution to the screening by the electrons. It is found that the CR effective mass m* is an oscillatory function of the magnetic field, which is due to the filling-factor-dependent dynamic screening of the electron-impurity scattering. It is demonstrated that as the Landau levels are depleted with increasing magnetic field, m* has a maximum at half-filling. Similar behavior has also been found in CR absorption of the two-dimensional electron gas in a high-mobility heterostructure. C1 UNIV WOLLONGONG,DEPT PHYS,WOLLONGONG,NSW 2500,AUSTRALIA. ELRA,WRIGHT LAB,SOLID STATE ELECTR DIRECTORATE,WRIGHT PATTERSON AFB,OH 45433. CUNY,GRAD SCH & UNIV CTR,NEW YORK,NY 10036. RP GUMBS, G (reprint author), CUNY,HUNTER COLL,DEPT PHYS & ASTRON,695 PARK AVE,NEW YORK,NY 10021, USA. OI Zhang, Chao/0000-0002-2817-0488 NR 29 TC 2 Z9 2 U1 0 U2 0 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 JAN 15 PY 1994 VL 75 IS 2 BP 902 EP 907 DI 10.1063/1.356445 PG 6 WC Physics, Applied SC Physics GA MT490 UT WOS:A1994MT49000028 ER PT J AU SMITH, SR SZMULOWICZ, F BROWN, GJ AF SMITH, SR SZMULOWICZ, F BROWN, GJ TI DETERMINATION OF THE VALENCE-BAND DISCONTINUITY IN BE-DOPED GAAS/AL0.3GA0.7AS MULTIPLE-QUANTUM WELLS USING ADMITTANCE SPECTROSCOPY SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID GAP DISCONTINUITIES; HETEROSTRUCTURES; OFFSETS; HETEROJUNCTIONS; BARRIERS; STATES; GAAS AB Admittance spectroscopy has been used to determine the value of the valence-band discontinuity in a p-type GaAs/Al0.3Ga0.7As multiple-quantum-well system. The structures were multiple quantum wells grown by molecular-beam epitaxy on semi-insulating GaAs substrates. Three Be-doped (p-type) GaAs wells, 30, 35, and 40 Angstrom wide, were used in these measurements. The barriers were undoped. Based on our measurements and a Fermi-level determination from an 8X8 envelope function approximation calculation of the valence electronic structure of the GaAs/AlGaAs system, the valence-band discontinuity, Delta E(nu), was found to be 0.165 eV. Using established relations, the band-gap difference in the GaAs/AlGaAs system Delta E(g) for x(Al)=0.3 was calculated to be 0.429 eV, which, together with the valence-band offset determined in this work, gives the ratio of the conduction-to-valence-band offsets as 60:40. These values are in excellent agreement with those determined by capacitance-voltage profiling, thus confirming the utility of the admittance spectroscopic technique for determining the band discontinuities in band-gap-engineered materials. C1 UNIV DAYTON, RES INST, DAYTON, OH 45469 USA. RP MLPO, WRIGHT LAB, MAT DIRECTORATE, WRIGHT PATTERSON AFB, OH 45433 USA. NR 22 TC 12 Z9 12 U1 0 U2 1 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 15 PY 1994 VL 75 IS 2 BP 1010 EP 1013 DI 10.1063/1.356507 PG 4 WC Physics, Applied SC Physics GA MT490 UT WOS:A1994MT49000043 ER PT J AU HAYES, RW MCQUAY, PA AF HAYES, RW MCQUAY, PA TI A 1ST REPORT ON THE CREEP DEFORMATION AND DAMAGE BEHAVIOR OF A FINE-GRAINED FULLY TRANSFORMED LAMELLAR-GAMMA TIAL ALLOY SO SCRIPTA METALLURGICA ET MATERIALIA LA English DT Article C1 USAF,AF MAT COMMAND,AFOSR,ASIAN OFF AEROSP RES,TOKYO,JAPAN. RP HAYES, RW (reprint author), MET TECHNOL INC,19801 NORDHOFF ST,NORTHRIDGE,CA 91324, USA. NR 13 TC 53 Z9 53 U1 1 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0956-716X J9 SCRIPTA METALL MATER JI Scr. Metall. Materialia PD JAN 15 PY 1994 VL 30 IS 2 BP 259 EP 264 DI 10.1016/0956-716X(94)90050-7 PG 6 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA MH465 UT WOS:A1994MH46500023 ER PT J AU STONE, TW BATTIATO, JM AF STONE, TW BATTIATO, JM TI OPTICAL ARRAY GENERATION AND INTERCONNECTION USING BIREFRINGENT SLABS SO APPLIED OPTICS LA English DT Article DE OPTICAL ARRAY GENERATION; OPTICAL INTERCONNECTS; SPOT ARRAY GENERATION; SUBARRAY GENERATION; REDUNDANCY; BIREFRINGENCE; DOUBLE REFRACTION ID DEVICES; NETWORK AB The use of double refraction in cascaded slabs of birefringent media for generating arrays of beams or spots is described. Arrays containing 2n beams are obtained for each incident beam by use of n slabs. The density, redundancy, and coherence of existing beam arrays can be modified with this technique. Input beams with spatially nonuniform amplitudes may be used, and both efficiency and array uniformity can exceed 95%. This approach is also useful for optical interconnection and can produce many patterns of beam location and polarization. Interconnects including compact split-and-shifts can be realized, and reconfigurable weights or patterns are also possible. The low dispersion of many birefringent materials makes this technique useful for broad-spectrum or wavelength multiplexed arrays. Trade-offs in the implementation are discussed, and experiments demonstrating the technique are presented. C1 USAF, CTR PHOTON, ROME LAB, GRIFFISS AFB, NY 13441 USA. RP STONE, TW (reprint author), RUTGERS STATE UNIV, HILL CTR, DEPT COMP SCI, NEW BRUNSWICK, NJ 08903 USA. NR 25 TC 14 Z9 14 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 JAN 10 PY 1994 VL 33 IS 2 BP 182 EP 191 PG 10 WC Optics SC Optics GA MX445 UT WOS:A1994MX44500006 PM 20862007 ER PT J AU YU, HY SANDAY, SC CHANG, CI AF YU, HY SANDAY, SC CHANG, CI TI ELASTIC INCLUSIONS AND INHOMOGENEITIES IN TRANSVERSELY ISOTROPIC SOLIDS SO PROCEEDINGS OF THE ROYAL SOCIETY-MATHEMATICAL AND PHYSICAL SCIENCES LA English DT Article ID SPHEROIDAL INCLUSION; STRESS STATE; INFINITY; STRAIN; FIELDS AB A method that introduces a new stress vector function (the hexagonal stress vector) is applied to obtain, in closed form, the elastic fields due to an inclusion in transversely isotropic solids. The solution is an extension of Eshelby's solution for an ellipsoidal inclusion in isotropic solids. The Green's functions for double forces and double forces with moment are derived and these are then used to solve the inclusion problem. The elastic field inside the inclusion is expressed in terms of the newtonian and biharmonic potential functions, which are similar to those needed for the solution in isotropic solids. Two more harmonic potential functions are introduced to express the solution outside the inclusion. The constrained strain inside the inclusion is uniform and the relation between the constrained strain and the misfit strain has the same characteristics as those of the Eshelby tensor for isotropic solids, namely, the coefficients coupling an extension to a shear or one shear to another are zero. The explicit closed form expression of this tensor is given. The inhomogeneity problem is then solved by using Eshelby's equivalent inclusion method. The solution for the thermoelastic displacements due to thermal inhomogeneities is also presented. C1 USAF, OFF SCI RES, WASHINGTON, DC 20332 USA. RP YU, HY (reprint author), USN, RES LAB, WASHINGTON, DC 20375 USA. NR 32 TC 24 Z9 24 U1 0 U2 6 PU ROYAL SOC PI LONDON PA 6-9 CARLTON HOUSE TERRACE, LONDON SW1Y 5AG, ENGLAND SN 0962-8444 J9 P R SOC-MATH PHYS SC JI P. Roy. Soc.-Math. Phys. Sci. PD JAN 8 PY 1994 VL 444 IS 1920 BP 239 EP 252 DI 10.1098/rspa.1994.0014 PG 14 GA MT178 UT WOS:A1994MT17800015 ER PT J AU TRULOVE, PC SUKUMARAN, DK OSTERYOUNG, RA AF TRULOVE, PC SUKUMARAN, DK OSTERYOUNG, RA TI PROTONS IN ACIDIC AMBIENT-TEMPERATURE CHLOROALUMINATE MOLTEN-SALTS - HYDROGEN-DEUTERIUM EXCHANGE BETWEEN THE IMIDAZOLIUM CATION AND HYDROGEN-CHLORIDE SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article ID IONIC LIQUIDS; LEWIS; SYSTEM; WATER; MELTS; HCL AB Hydrogen-deuterium (H-D) exchange is observed between hydrogen chloride and 1-ethyl-3-methylimidazolium ion in acidic mixtures of the molten salt,aluminum chloride:1-ethyl-3-methylimidazolium chloride. The exchange takes place at the 4.5-positions on the imidazolium ring, and it proceeds by an acid-catalyzed electrophilic substitution mechanism. The magnitude of the equilibrium isotope effect (K(EIE)) for this exchange process, which was found to be 1.5 +/- 0.3 in a 2:1 melt at 30-degrees-C, indicates that deuterium will accumulate in the imidazolium cation. The H-D reaction is first order in hydrogen chloride and seems to be first order in Al2Cl7-. The rate-limiting process for this exchange reaction appears to be protonation of the imidazolium cation by hydrogen chloride where Al2Cl7- acts as a chloride acceptor. C1 N CAROLINA STATE UNIV,DEPT CHEM,RALEIGH,NC 27695. USAF ACAD,FRANK J SEILER RES LAB,COLORADO SPRINGS,CO 80840. SUNY BUFFALO,DEPT CHEM,BUFFALO,NY 14214. NR 31 TC 8 Z9 9 U1 3 U2 4 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 JAN 6 PY 1994 VL 98 IS 1 BP 141 EP 146 DI 10.1021/j100052a025 PG 6 WC Chemistry, Physical SC Chemistry GA MR068 UT WOS:A1994MR06800025 ER PT J AU BLASCHAK, JG AF BLASCHAK, JG BE Terzuoli, A TI Review of FD-TD based algorithms for electromagnetic wave propagation in dispersive dielectric material SO 10TH ANNUAL REVIEW OF PROGRESS IN APPLIED COMPUTATIONAL ELECTROMAGNETICS, CONFERENCE PROCEEDINGS, VOL 1 LA English DT Meeting Abstract CT 10th Annual Review of Progress in Applied Computational Electromagnetics Conference CY MAR 21-26, 1994 CL MONTEREY, CA SP Appl Comp Electromagnet Soc, DOD, US DOE, IEEE, URSI, ASEE, SIAM, AMTA C1 USAF,ARMSTRONG LAB,BROOKS AFB,TX 78235. NR 0 TC 0 Z9 0 U1 0 U2 0 PU 1994 A C E S Conference PI DAYTON PA PO BOX 3402, DAYTON, OH 45401 PY 1994 BP 2 EP 2 PG 1 WC Engineering, Electrical & Electronic SC Engineering GA BD46Z UT WOS:A1994BD46Z00001 ER PT B AU PETROPOULOS, PG AF PETROPOULOS, PG BE Terzuoli, A TI Modeling propagation and scattering in dispersive dielectrics with FD-TD SO 10TH ANNUAL REVIEW OF PROGRESS IN APPLIED COMPUTATIONAL ELECTROMAGNETICS, CONFERENCE PROCEEDINGS, VOL 1 LA English DT Proceedings Paper CT 10th Annual Review of Progress in Applied Computational Electromagnetics Conference CY MAR 21-26, 1994 CL MONTEREY, CA SP Appl Comp Electromagnet Soc, DOD, US DOE, IEEE, URSI, ASEE, SIAM, AMTA C1 OES,ARMSTRONG LAB,BROOKS AFB,TX 78235. RI Petropoulos, Peter/M-6495-2013 NR 0 TC 1 Z9 1 U1 0 U2 0 PU 1994 A C E S Conference PI DAYTON PA PO BOX 3402, DAYTON, OH 45401 PY 1994 BP 3 EP 9 PG 7 WC Engineering, Electrical & Electronic SC Engineering GA BD46Z UT WOS:A1994BD46Z00002 ER PT B AU HAUPT, R ALI, A AF HAUPT, R ALI, A BE Terzuoli, A TI Optimized backscattering sidelobes from an array of strips using a genetic algorithm SO 10TH ANNUAL REVIEW OF PROGRESS IN APPLIED COMPUTATIONAL ELECTROMAGNETICS, CONFERENCE PROCEEDINGS, VOL 1 LA English DT Proceedings Paper CT 10th Annual Review of Progress in Applied Computational Electromagnetics Conference CY MAR 21-26, 1994 CL MONTEREY, CA SP Appl Comp Electromagnet Soc, DOD, US DOE, IEEE, URSI, ASEE, SIAM, AMTA C1 USAF ACAD,DEPT ELECT ENGN,COLORADO SPRINGS,CO 80840. NR 0 TC 1 Z9 1 U1 0 U2 0 PU 1994 A C E S Conference PI DAYTON PA PO BOX 3402, DAYTON, OH 45401 PY 1994 BP 266 EP 270 PG 5 WC Engineering, Electrical & Electronic SC Engineering GA BD46Z UT WOS:A1994BD46Z00032 ER PT B AU JERNEJCIC, RO TERZUOLI, AJ AF JERNEJCIC, RO TERZUOLI, AJ BE Terzuoli, A TI Evaluation of radar signature predictions using XPATCH SO 10TH ANNUAL REVIEW OF PROGRESS IN APPLIED COMPUTATIONAL ELECTROMAGNETICS, CONFERENCE PROCEEDINGS, VOL 1 LA English DT Proceedings Paper CT 10th Annual Review of Progress in Applied Computational Electromagnetics Conference CY MAR 21-26, 1994 CL MONTEREY, CA SP Appl Comp Electromagnet Soc, DOD, US DOE, IEEE, URSI, ASEE, SIAM, AMTA C1 USAF,INST TECHNOL,WASHINGTON,DC 20330. NR 0 TC 0 Z9 0 U1 0 U2 0 PU 1994 A C E S Conference PI DAYTON PA PO BOX 3402, DAYTON, OH 45401 PY 1994 BP 343 EP 351 PG 9 WC Engineering, Electrical & Electronic SC Engineering GA BD46Z UT WOS:A1994BD46Z00042 ER PT B AU BLOCHER, S NORGARD, J SADLER, J SEGA, R PRATHER, W AF BLOCHER, S NORGARD, J SADLER, J SEGA, R PRATHER, W BE Terzuoli, A TI Infrared verification of electromagnetic code predictions SO 10TH ANNUAL REVIEW OF PROGRESS IN APPLIED COMPUTATIONAL ELECTROMAGNETICS, CONFERENCE PROCEEDINGS, VOL 1 LA English DT Proceedings Paper CT 10th Annual Review of Progress in Applied Computational Electromagnetics Conference CY MAR 21-26, 1994 CL MONTEREY, CA SP Appl Comp Electromagnet Soc, DOD, US DOE, IEEE, URSI, ASEE, SIAM, AMTA C1 USAF,PHILLIPS LAB,MICROWAVE RES GRP,KIRTLAND AFB,NM 87117. NR 0 TC 0 Z9 0 U1 0 U2 0 PU 1994 A C E S Conference PI DAYTON PA PO BOX 3402, DAYTON, OH 45401 PY 1994 BP 360 EP 365 PG 6 WC Engineering, Electrical & Electronic SC Engineering GA BD46Z UT WOS:A1994BD46Z00044 ER PT J AU BURLESON, RA TERZUOLI, AJ ENGLISH, EK HENDERSON, LW AF BURLESON, RA TERZUOLI, AJ ENGLISH, EK HENDERSON, LW BE Terzuoli, A TI A study of two-dimensional tapered periodic edge treatments for the reduction of diffraction SO 10TH ANNUAL REVIEW OF PROGRESS IN APPLIED COMPUTATIONAL ELECTROMAGNETICS, CONFERENCE PROCEEDINGS, VOL 1 LA English DT Proceedings Paper CT 10th Annual Review of Progress in Applied Computational Electromagnetics Conference CY MAR 21-26, 1994 CL MONTEREY, CA SP Appl Comp Electromagnet Soc, DOD, US DOE, IEEE, URSI, ASEE, SIAM, AMTA C1 USAF,INST TECHNOL,WASHINGTON,DC 20330. NR 0 TC 0 Z9 0 U1 0 U2 0 PU 1994 A C E S Conference PI DAYTON PA PO BOX 3402, DAYTON, OH 45401 PY 1994 BP 436 EP 443 PG 8 WC Engineering, Electrical & Electronic SC Engineering GA BD46Z UT WOS:A1994BD46Z00053 ER PT J AU ANDERSH, DJ LEE, SW BECKNER, FL GILKEY, M SCHINDEL, R HAZLETT, M YU, CL AF ANDERSH, DJ LEE, SW BECKNER, FL GILKEY, M SCHINDEL, R HAZLETT, M YU, CL BE Terzuoli, A TI XPATCH: A high frequency electromagnetic scattering prediction code using shooting and bouncing rays SO 10TH ANNUAL REVIEW OF PROGRESS IN APPLIED COMPUTATIONAL ELECTROMAGNETICS, CONFERENCE PROCEEDINGS, VOL II LA English DT Proceedings Paper CT 10th Annual Review of Progress in Applied Computational Electromagnetics Conference CY MAR 21-26, 1994 CL MONTEREY, CA SP Appl Comp Electromagnet Soc, DOD, US DOE, IEEE, URSI, ASEE, SIAM, AMTA C1 USAF,AARA 2,WL,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU 1994 A C E S Conference PI DAYTON PA PO BOX 3402, DAYTON, OH 45401 PY 1994 BP 424 EP 433 PG 10 WC Engineering, Electrical & Electronic SC Engineering GA BD47A UT WOS:A1994BD47A00058 ER PT J AU SKINNER, JP AF SKINNER, JP BE Terzuoli, A TI A T-matrix solution for the scattering from dielectric cylinders SO 10TH ANNUAL REVIEW OF PROGRESS IN APPLIED COMPUTATIONAL ELECTROMAGNETICS, CONFERENCE PROCEEDINGS, VOL II LA English DT Proceedings Paper CT 10th Annual Review of Progress in Applied Computational Electromagnetics Conference CY MAR 21-26, 1994 CL MONTEREY, CA SP Appl Comp Electromagnet Soc, DOD, US DOE, IEEE, URSI, ASEE, SIAM, AMTA C1 USAF,INST TECHNOL,WASHINGTON,DC 20330. NR 0 TC 0 Z9 0 U1 0 U2 0 PU 1994 A C E S Conference PI DAYTON PA PO BOX 3402, DAYTON, OH 45401 PY 1994 BP 510 EP 519 PG 10 WC Engineering, Electrical & Electronic SC Engineering GA BD47A UT WOS:A1994BD47A00070 ER PT J AU HITE, SW WOMACK, R AF HITE, SW WOMACK, R GP VIBRAT INST TI VIBRATION AND CURRENT CHARACTERISTICS OF FAULTS AND WOUND ROTOR AC INDUCTION MOTORS SO 18TH ANNUAL MEETING PROCEEDINGS VIBRATION INSTITUTE LA English DT Proceedings Paper CT 18th Annual Meeting of the Vibration-Institute CY JUN 21-23, 1994 CL HERSHEY, PA SP VIBRAT INST C1 SVERDRUP TECHNOL INC,AEDC GRP,ARNOLD AFB,TN 37389. NR 0 TC 0 Z9 0 U1 0 U2 0 PU VIBRATION INST PI CLARENDON PA 101 W 55TH ST, CLARENDON, IL 60514 PY 1994 BP 107 EP 114 PG 8 WC Engineering, Mechanical SC Engineering GA BC63G UT WOS:A1994BC63G00014 ER PT J AU STONE, WG LONG, DJ BROWN, TL AF STONE, WG LONG, DJ BROWN, TL BE Chang, HC Lu, L TI INFORMATION STRATEGY - A FIELD-STUDY ON INTEGRATING INFORMATION-SYSTEMS PLANNING INTO ORGANIZATIONAL DOWNSIZING STRATEGIES SO 1994 AOM PROCEEDINGS OF THE INFORMATION TECHNOLOGY MANAGEMENT GROUP, VOL 12, NO 1, 1994 LA English DT Proceedings Paper CT Meeting of the Information-Technology-Management-Group, at the 12th Annual International Conference of the Association-of-Management CY AUG 10-13, 1994 CL DALLAS, TX SP ASSOC MANAGEMENT, INFORMAT TECHNOL MANAGEMENT GRP C1 USAF,INST TECHNOL,WASHINGTON,DC 20330. NR 0 TC 0 Z9 0 U1 0 U2 0 PU MAXIMILIAN PRESS PUBLISHERS PI NEWPORT NEWS PA OYSTER POINT SQUARE, 11710 F JEFFERSON AVE, PO BOX 12141, NEWPORT NEWS, VA 23612-2141 PY 1994 BP 101 EP 107 PG 7 WC Information Science & Library Science SC Information Science & Library Science GA BB38Z UT WOS:A1994BB38Z00017 ER PT B AU YEN, GG AF YEN, GG GP IEEE TI STABILITY ANALYSIS AND SYNTHESIS ALGORITHM OF BIDIRECTIONAL ASSOCIATIVE MEMORY SO 1994 IEEE INTERNATIONAL CONFERENCE ON NEURAL NETWORKS, VOL 1-7 LA English DT Proceedings Paper CT 1994 IEEE International Conference on Neural Networks (ICNN 94) - 1st IEEE World Congress on Computational Intelligence CY JUN 26-29, 1994 CL ORLANDO, FL SP IEEE, NEURAL NETWORKS COUNCIL, IEEE, ORLANDO SECT C1 USAF,PHILLIPS LAB,DIV STRUCT & CONTROLS,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 0-7803-1901-X PY 1994 BP 1038 EP 1043 PG 6 WC Automation & Control Systems; Computer Science, Artificial Intelligence SC Automation & Control Systems; Computer Science GA BC54C UT WOS:A1994BC54C00193 ER PT B AU KANE, JS BARTANA, I AF KANE, JS BARTANA, I GP IEEE TI PROPOSAL FOR FUZZY OPTICAL ADAPTIVE RESONANCE THEORY IMPLEMENTATION SO 1994 IEEE INTERNATIONAL CONFERENCE ON NEURAL NETWORKS, VOL 1-7 LA English DT Proceedings Paper CT 1994 IEEE International Conference on Neural Networks (ICNN 94) - 1st IEEE World Congress on Computational Intelligence CY JUN 26-29, 1994 CL ORLANDO, FL SP IEEE, NEURAL NETWORKS COUNCIL, IEEE, ORLANDO SECT C1 USAF,ROME LAB,OPT SIGNAL PROC BRANCH,EROP,BEDFORD,MA 01731. 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 0-7803-1901-X PY 1994 BP 1987 EP 1992 PG 6 WC Automation & Control Systems; Computer Science, Artificial Intelligence SC Automation & Control Systems; Computer Science GA BC54C UT WOS:A1994BC54C00371 ER PT B AU REID, JR ROGERS, SK BRIGHT, VM KABRISKY, M AF REID, JR ROGERS, SK BRIGHT, VM KABRISKY, M GP IEEE TI THE AFIT MULTIPLEXED MULTI-ELECTRODE ARRAY AND IMPLANTATION PACKAGE FOR NEURAL RECORDING AND STIMULATION SO 1994 IEEE INTERNATIONAL CONFERENCE ON NEURAL NETWORKS, VOL 1-7 LA English DT Proceedings Paper CT 1994 IEEE International Conference on Neural Networks (ICNN 94) - 1st IEEE World Congress on Computational Intelligence CY JUN 26-29, 1994 CL ORLANDO, FL SP IEEE, NEURAL NETWORKS COUNCIL, IEEE, ORLANDO SECT C1 USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,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 0-7803-1901-X PY 1994 BP 2250 EP 2253 PG 4 WC Automation & Control Systems; Computer Science, Artificial Intelligence SC Automation & Control Systems; Computer Science GA BC54C UT WOS:A1994BC54C00424 ER PT B AU BAIRD, LC AF BAIRD, LC GP IEEE TI REINFORCEMENT LEARNING IN CONTINUOUS TIME - ADVANTAGE UPDATING SO 1994 IEEE INTERNATIONAL CONFERENCE ON NEURAL NETWORKS, VOL 1-7 LA English DT Proceedings Paper CT 1994 IEEE International Conference on Neural Networks (ICNN 94) - 1st IEEE World Congress on Computational Intelligence CY JUN 26-29, 1994 CL ORLANDO, FL SP IEEE, NEURAL NETWORKS COUNCIL, IEEE, ORLANDO SECT C1 WRIGHT LAB,AAAT,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 13 Z9 13 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1901-X PY 1994 BP 2448 EP 2453 PG 6 WC Automation & Control Systems; Computer Science, Artificial Intelligence SC Automation & Control Systems; Computer Science GA BC54C UT WOS:A1994BC54C00461 ER PT B AU DIDOMENICO, E AF DIDOMENICO, E GP IEEE TI NEURAL NETWORK OUTPUT FEEDBACK TRAINING FOR OPTIMAL VIBRATION SUPPRESSION SO 1994 IEEE INTERNATIONAL CONFERENCE ON NEURAL NETWORKS, VOL 1-7 LA English DT Proceedings Paper CT 1994 IEEE International Conference on Neural Networks (ICNN 94) - 1st IEEE World Congress on Computational Intelligence CY JUN 26-29, 1994 CL ORLANDO, FL SP IEEE, NEURAL NETWORKS COUNCIL, IEEE, ORLANDO SECT C1 USAF ACAD,FJSRL NA,COLORADO SPRINGS,CO 80840. NR 0 TC 0 Z9 0 U1 3 U2 3 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1901-X PY 1994 BP 2556 EP 2561 PG 6 WC Automation & Control Systems; Computer Science, Artificial Intelligence SC Automation & Control Systems; Computer Science GA BC54C UT WOS:A1994BC54C00480 ER PT B AU YEN, GG AF YEN, GG GP IEEE TI ADAPTIVE TIME-DELAY NEURAL CONTROL IN SPACE STRUCTURAL PLATFORMS SO 1994 IEEE INTERNATIONAL CONFERENCE ON NEURAL NETWORKS, VOL 1-7 LA English DT Proceedings Paper CT 1994 IEEE International Conference on Neural Networks (ICNN 94) - 1st IEEE World Congress on Computational Intelligence CY JUN 26-29, 1994 CL ORLANDO, FL SP IEEE, NEURAL NETWORKS COUNCIL, IEEE, ORLANDO SECT C1 USAF,PHILLIPS LAB,DIV STRUCT & CONTROLS,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 0-7803-1901-X PY 1994 BP 2622 EP 2627 PG 6 WC Automation & Control Systems; Computer Science, Artificial Intelligence SC Automation & Control Systems; Computer Science GA BC54C UT WOS:A1994BC54C00492 ER PT B AU BADGERO, ML AF BADGERO, ML GP IEEE TI DIGITIZING ARTIFICIAL NEURAL NETWORKS SO 1994 IEEE INTERNATIONAL CONFERENCE ON NEURAL NETWORKS, VOL 1-7 LA English DT Proceedings Paper CT 1994 IEEE International Conference on Neural Networks (ICNN 94) - 1st IEEE World Congress on Computational Intelligence CY JUN 26-29, 1994 CL ORLANDO, FL SP IEEE, NEURAL NETWORKS COUNCIL, IEEE, ORLANDO SECT C1 USAF,CTR COMMUN SYST,TINKER AFB,OK 73145. 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 0-7803-1901-X PY 1994 BP 3986 EP 3989 PG 4 WC Automation & Control Systems; Computer Science, Artificial Intelligence SC Automation & Control Systems; Computer Science GA BC54C UT WOS:A1994BC54C00739 ER PT B AU ANDERSON, TR AF ANDERSON, TR GP IEEE TI AUDITORY MODELS WITH KOHONEN SOFM AND LVQ FOR SPEAKER INDEPENDENT PHONEME RECOGNITION SO 1994 IEEE INTERNATIONAL CONFERENCE ON NEURAL NETWORKS, VOL 1-7 LA English DT Proceedings Paper CT 1994 IEEE International Conference on Neural Networks (ICNN 94) - 1st IEEE World Congress on Computational Intelligence CY JUN 26-29, 1994 CL ORLANDO, FL SP IEEE, NEURAL NETWORKS COUNCIL, IEEE, ORLANDO SECT C1 USAF,ARMSTRONG LAB,BIOACOUST & BIOCOMMUN BRANCH,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 0-7803-1901-X PY 1994 BP 4466 EP 4467 PG 2 WC Automation & Control Systems; Computer Science, Artificial Intelligence SC Automation & Control Systems; Computer Science GA BC54C UT WOS:A1994BC54C00828 ER PT B AU ANDERSON, TR JANKO, JA GILKEY, RH AF ANDERSON, TR JANKO, JA GILKEY, RH GP IEEE TI MODELING HUMAN SOUND LOCALIZATION WITH HIERARCHICAL NEURAL NETWORKS SO 1994 IEEE INTERNATIONAL CONFERENCE ON NEURAL NETWORKS, VOL 1-7 LA English DT Proceedings Paper CT 1994 IEEE International Conference on Neural Networks (ICNN 94) - 1st IEEE World Congress on Computational Intelligence CY JUN 26-29, 1994 CL ORLANDO, FL SP IEEE, NEURAL NETWORKS COUNCIL, IEEE, ORLANDO SECT C1 USAF,ARMSTRONG LAB,BIOACOUST & BIOCOMMUN BRANCH,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 0-7803-1901-X PY 1994 BP 4502 EP 4507 PG 6 WC Automation & Control Systems; Computer Science, Artificial Intelligence SC Automation & Control Systems; Computer Science GA BC54C UT WOS:A1994BC54C00836 ER PT B AU LEAHY, MB PETROSKI, SB AF LEAHY, MB PETROSKI, SB GP IEEE TI UNIFIED TELEROBOTIC ARCHITECTURE PROJECT STATUS REPORT SO 1994 IEEE INTERNATIONAL CONFERENCE ON SYSTEMS, MAN, AND CYBERNETICS - HUMANS, INFORMATION AND TECHNOLOGY, VOLS 1-3 LA English DT Proceedings Paper CT 1994 IEEE International Conference on Systems, Man, and Cybernetics - Humans, Information and Technology (SMC 94) CY OCT 02-05, 1994 CL SAN ANTONIO, TX SP IEEE C1 AFMC ROBOT & AUTOMAT CTR EXCELLENCE,SAN ANTONIO AIR LOGIST CTR,KELLY AFB,TX. 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 0-7803-2129-4 PY 1994 BP 249 EP 253 PG 5 WC Automation & Control Systems; Computer Science, Artificial Intelligence; Computer Science, Cybernetics; Ergonomics SC Automation & Control Systems; Computer Science; Engineering GA BC41S UT WOS:A1994BC41S00044 ER PT B AU RAETH, PG NOYES, JL MONTECALVO, AJ AF RAETH, PG NOYES, JL MONTECALVO, AJ GP IEEE TI A SCALABLE FRAMEWORK FOR ADDING CRISP KNOWLEDGE TO PILOT/VEHICLE INTERFACES SO 1994 IEEE INTERNATIONAL CONFERENCE ON SYSTEMS, MAN, AND CYBERNETICS - HUMANS, INFORMATION AND TECHNOLOGY, VOLS 1-3 LA English DT Proceedings Paper CT 1994 IEEE International Conference on Systems, Man, and Cybernetics - Humans, Information and Technology (SMC 94) CY OCT 02-05, 1994 CL SAN ANTONIO, TX SP IEEE C1 WRIGHT LAB,FIPA,PILOT VEHICLE INTERFACE TECHNOL BRANCH,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 0-7803-2129-4 PY 1994 BP 2091 EP 2096 PG 6 WC Automation & Control Systems; Computer Science, Artificial Intelligence; Computer Science, Cybernetics; Ergonomics SC Automation & Control Systems; Computer Science; Engineering GA BC41S UT WOS:A1994BC41S00360 ER PT B AU YEN, GG AF YEN, GG GP IEEE TI DECENTRALIZED NEURAL CONTROLLER DESIGN FOR SPACE STRUCTURAL PLATFORMS SO 1994 IEEE INTERNATIONAL CONFERENCE ON SYSTEMS, MAN, AND CYBERNETICS - HUMANS, INFORMATION AND TECHNOLOGY, VOLS 1-3 LA English DT Proceedings Paper CT 1994 IEEE International Conference on Systems, Man, and Cybernetics - Humans, Information and Technology (SMC 94) CY OCT 02-05, 1994 CL SAN ANTONIO, TX SP IEEE C1 USAF,PHILLIPS LAB,DIV STRUCT & CONTROLS,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 0-7803-2129-4 PY 1994 BP 2126 EP 2131 PG 6 WC Automation & Control Systems; Computer Science, Artificial Intelligence; Computer Science, Cybernetics; Ergonomics SC Automation & Control Systems; Computer Science; Engineering GA BC41S UT WOS:A1994BC41S00366 ER PT B AU WAUGAMAN, WA SCHRADER, CB AF WAUGAMAN, WA SCHRADER, CB GP IEEE TI A 2 DIMENSIONAL ELECTRODE CURRENT DENSITY MODEL FOR SUBTHRESHOLD ELECTRICAL STIMULATION SO 1994 IEEE INTERNATIONAL CONFERENCE ON SYSTEMS, MAN, AND CYBERNETICS - HUMANS, INFORMATION AND TECHNOLOGY, VOLS 1-3 LA English DT Proceedings Paper CT 1994 IEEE International Conference on Systems, Man, and Cybernetics - Humans, Information and Technology (SMC 94) CY OCT 02-05, 1994 CL SAN ANTONIO, TX SP IEEE C1 USAF ACAD,COLORADO SPRINGS,CO 80840. 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 0-7803-2129-4 PY 1994 BP 2294 EP 2299 PG 6 WC Automation & Control Systems; Computer Science, Artificial Intelligence; Computer Science, Cybernetics; Ergonomics SC Automation & Control Systems; Computer Science; Engineering GA BC41S UT WOS:A1994BC41S00395 ER PT B AU OHAIR, JR SUTER, BW AF OHAIR, JR SUTER, BW GP IEEE TI THE ZAK TRANSFORM AND DECIMATED SPECTROGRAMS SO 1994 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOL 2: DIGITAL SIGNAL PROCESSING (DSP) LA English DT Proceedings Paper CT 1994 IEEE International Symposium on Circuits and Systems CY MAY 30-JUN 02, 1994 CL LONDON, ENGLAND SP IEEE 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 0-7803-1915-X PY 1994 BP B349 EP B352 PG 4 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic; Mathematics, Applied SC Computer Science; Engineering; Mathematics GA BB77X UT WOS:A1994BB77X00086 ER PT B AU XIA, XG KUO, CCJ ZHANG, Z AF XIA, XG KUO, CCJ ZHANG, Z GP IEEE TI RECOVERY OF MULTIBAND SIGNALS USING FINITE SAMPLES SO 1994 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOL 2: DIGITAL SIGNAL PROCESSING (DSP) LA English DT Proceedings Paper CT 1994 IEEE International Symposium on Circuits and Systems CY MAY 30-JUN 02, 1994 CL LONDON, ENGLAND SP IEEE C1 USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,WRIGHT PATTERSON AFB,OH 45433. RI Kuo, C.-C. Jay/A-7110-2011 OI Kuo, C.-C. Jay/0000-0001-9474-5035 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 0-7803-1915-X PY 1994 BP B469 EP B472 PG 4 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic; Mathematics, Applied SC Computer Science; Engineering; Mathematics GA BB77X UT WOS:A1994BB77X00116 ER PT B AU SALOMON, RK AF SALOMON, RK GP IEEE INC, TECH ACTIV BOARD TI IMPLEMENTING POLLUTION PREVENTION IN DOD SYSTEM ACQUISITION PROGRAMS - WHAT MORE IS NEEDED SO 1994 IEEE INTERNATIONAL SYMPOSIUM ON ELECTRONICS & THE ENVIRONMENT, ISEE - 1994, PROCEEDINGS LA English DT Proceedings Paper CT 1994 IEEE International Symposium on Electronics and the Environment (ISEE - 1994) CY MAY 02-04, 1994 CL SAN FRANCISCO, CA SP IEEE INC, TECH ACTIV BOARD C1 USAF,CHAPEL HILL,NC 27514. 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 0-7803-1769-6 PY 1994 BP 45 EP 50 PG 6 WC Engineering, Environmental; Engineering, Electrical & Electronic SC Engineering GA BB18Z UT WOS:A1994BB18Z00010 ER PT B AU CHADDERDON, RA SCHROEDER, MA AF CHADDERDON, RA SCHROEDER, MA GP IEEE TI UNITED-STATES SPECIAL OPERATIONS COMMAND (USSOCOM) PHASE-1 VIDEO TELECONFERENCING (VTC) ARCHITECTURE SO 1994 IEEE MILCOM CONFERENCE RECORD, VOLS 1-3 LA English DT Proceedings Paper CT IEEE Communications-Society 13th Military Communications Conference (MILCOM 94)/19th Annual Fort Monmouth Chapter AFCEA Symposium CY OCT 02-05, 1994 CL FT MONMOUTH, NJ SP IEEE, COMMUN SOC, ARMED FORCES COMMUN & ELECTR ASSOC C1 USSOCOM,MACDILL AFB,FL 33621. 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 PY 1994 BP 92 EP 96 PG 5 WC Telecommunications SC Telecommunications GA BC58K UT WOS:A1994BC58K00020 ER PT B AU MARSH, RA AF MARSH, RA GP IEEE TI AIR FORCE AVIATION BATTERY PROGRAMS SO 1994 IEEE MILCOM CONFERENCE RECORD, VOLS 1-3 LA English DT Proceedings Paper CT IEEE Communications-Society 13th Military Communications Conference (MILCOM 94)/19th Annual Fort Monmouth Chapter AFCEA Symposium CY OCT 02-05, 1994 CL FT MONMOUTH, NJ 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 PY 1994 BP 201 EP 201 PG 1 WC Telecommunications SC Telecommunications GA BC58K UT WOS:A1994BC58K00044 ER PT B AU WATTENBARGER, JF AF WATTENBARGER, JF GP IEEE TI PORTABLE POWER SOURCES FOR THE SPECIAL OPERATIONS COMMAND SO 1994 IEEE MILCOM CONFERENCE RECORD, VOLS 1-3 LA English DT Proceedings Paper CT IEEE Communications-Society 13th Military Communications Conference (MILCOM 94)/19th Annual Fort Monmouth Chapter AFCEA Symposium CY OCT 02-05, 1994 CL FT MONMOUTH, NJ SP IEEE, COMMUN SOC, ARMED FORCES COMMUN & ELECTR ASSOC C1 US SPECIAL OPERAT COMMAND,MACDILL AFB,FL. 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 PY 1994 BP 202 EP 202 PG 1 WC Telecommunications SC Telecommunications GA BC58K UT WOS:A1994BC58K00045 ER PT B AU GOLDSTEIN, JS AF GOLDSTEIN, JS GP IEEE TI A NEW FILTERBANK-BASED MMSE APPROACH TO REDUCING THE DEGREES OF FREEDOM IN ADAPTIVE SENSOR ARRAY PROCESSING SO 1994 IEEE MILCOM CONFERENCE RECORD, VOLS 1-3 LA English DT Proceedings Paper CT IEEE Communications-Society 13th Military Communications Conference (MILCOM 94)/19th Annual Fort Monmouth Chapter AFCEA Symposium CY OCT 02-05, 1994 CL FT MONMOUTH, NJ 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 PY 1994 BP 321 EP 325 PG 5 WC Telecommunications SC Telecommunications GA BC58K UT WOS:A1994BC58K00070 ER PT S AU BRIGHT, VM JENKINS, TJ FELLOWS, JA AF BRIGHT, VM JENKINS, TJ FELLOWS, JA BE Kuno, HJ Wen, CP TI AN ACCURATE PHYSICS-BASED BROAD-BAND HETEROJUNCTION BIPOLAR-TRANSISTOR MODEL FOR SPICE-ASSISTED MICROWAVE CIRCUIT-DESIGN SO 1994 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST, VOLS 1-3 SE IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST LA English DT Proceedings Paper CT 1994 IEEE MTT-S International Microwave Symposium CY MAY 23-27, 1994 CL SAN DIEGO, CA SP IEEE, MTT CHAPTER C1 USAF,INST TECHNOL,DEPT ELECT & COMP ENGN,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 SN 0149-645X BN 0-7803-1778-5 J9 IEEE MTT-S PY 1994 BP 1265 EP 1268 DI 10.1109/MWSYM.1994.335578 PG 4 WC Engineering, Electrical & Electronic; Optics; Telecommunications SC Engineering; Optics; Telecommunications GA BB20R UT WOS:A1994BB20R00298 ER PT B AU ROCKWELL, BA ROACH, PW ROGERS, ME AF ROCKWELL, BA ROACH, PW ROGERS, ME GP IEEE TI THE APPLICATION OF NONLINEAR OPTICS IN OCULAR BIOPHYSICS SO 1994 IEEE NONLINEAR OPTICS: MATERIALS, FUNDAMENTALS, AND APPLICATIONS LA English DT Proceedings Paper CT 1994 IEEE Conference on Nonlinear Optics - Materials, Fundamentals, and Applications CY JUL 25-29, 1994 CL WAIKOLOA, HI SP IEEE, LASERS & ELECTRO OPT SOC, OPT SOC AMER C1 USAF,ARMSTRONG LAB,DIV OPT RADIAT,OEOP,BROOKS AFB,TX 78235. 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 0-7803-1473-5 PY 1994 BP 185 EP 187 PG 3 WC Optics SC Optics GA BC30X UT WOS:A1994BC30X00063 ER PT B AU LIBY, BW STATMAN, D MCINERNEY, J MCIVER, JK AF LIBY, BW STATMAN, D MCINERNEY, J MCIVER, JK GP IEEE TI EFFECTS OF PHOTOREFRACTIVE PHASE CONJUGATE FEEDBACK ON SEMICONDUCTOR LASER LINEWIDTH SO 1994 IEEE NONLINEAR OPTICS: MATERIALS, FUNDAMENTALS, AND APPLICATIONS LA English DT Proceedings Paper CT 1994 IEEE Conference on Nonlinear Optics - Materials, Fundamentals, and Applications CY JUL 25-29, 1994 CL WAIKOLOA, HI SP IEEE, LASERS & ELECTRO OPT SOC, OPT SOC AMER C1 USAF,PHILLIPS LAB,SEMICOND LASER APPLICAT BRANCH,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 0-7803-1473-5 PY 1994 BP 209 EP 211 PG 3 WC Optics SC Optics GA BC30X UT WOS:A1994BC30X00071 ER PT B AU KESTER, JJ DAJANI, I OSTERBERG, U WEITZMAN, P AF KESTER, JJ DAJANI, I OSTERBERG, U WEITZMAN, P GP IEEE TI ELECTRIC FIELD MEASUREMENTS ASSOCIATED WITH 2ND HARMONIC GENERATION IN THIN FILM WAVEGUIDES SO 1994 IEEE NONLINEAR OPTICS: MATERIALS, FUNDAMENTALS, AND APPLICATIONS LA English DT Proceedings Paper CT 1994 IEEE Conference on Nonlinear Optics - Materials, Fundamentals, and Applications CY JUL 25-29, 1994 CL WAIKOLOA, HI SP IEEE, LASERS & ELECTRO OPT SOC, OPT SOC AMER C1 USAF ACAD,FRANK J SEILER RES LAB,COLORADO SPRINGS,CO 80840. 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 0-7803-1473-5 PY 1994 BP 465 EP 467 PG 3 WC Optics SC Optics GA BC30X UT WOS:A1994BC30X00156 ER PT B AU WEBB, TS BAUER, KW AF WEBB, TS BAUER, KW BE Tew, JD Manivannan, MS Sadowski, DA Seila, AF TI COMPARISON OF ANALYSIS STRATEGIES FOR SCREENING DESIGNS IN LARGE-SCALE COMPUTER SIMULATION MODELS SO 1994 WINTER SIMULATION CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 1994 Winter Simulation Conference CY DEC 11-14, 1994 CL LAKE BUENA VISTA, FL 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,CAMPAIGN ANAL BRANCH,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 0-7803-2109-X PY 1994 BP 305 EP 311 PG 7 WC Computer Science, Software Engineering SC Computer Science GA BC51T UT WOS:A1994BC51T00041 ER PT B AU LESTER, DL VANVELDHUIZEN, LL AF LESTER, DL VANVELDHUIZEN, LL BE Tew, JD Manivannan, MS Sadowski, DA Seila, AF TI THEATER AIR COMMAND AND CONTROL SIMULATION FACILITY SO 1994 WINTER SIMULATION CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 1994 Winter Simulation Conference CY DEC 11-14, 1994 CL LAKE BUENA VISTA, FL 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 505TH COMMAND & CONTROL EVALUAT GRP,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 0-7803-2109-X PY 1994 BP 835 EP 838 PG 4 WC Computer Science, Software Engineering SC Computer Science GA BC51T UT WOS:A1994BC51T00122 ER PT B AU SMELLIE, DS HILL, CA AF SMELLIE, DS HILL, CA GP AMER INST AERONAUT & ASTRONAUT TI AIR FORCE NICKEL HYDROGEN CELL LOW EARTH ORBIT LIFE TEST UPDATE SO 29TH INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, PTS 1-4: A COLLECTION OF TECHNICAL PAPERS LA English DT Proceedings Paper CT 29th Intersociety Energy Conversion Engineering Conference CY AUG 07-11, 1994 CL MONTEREY, CA SP AMER INST AERONAUT & ASTRONAUT C1 USAF,PHILLIPS LAB,KIRTLAND AFB,NM 87117. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER INST AERONAUTICS & ASTRONAUTICS PI WASHINGTON PA 370 L'ENFANT PROMENADE SW, WASHINGTON, DC 20024-2518 BN 1-56347-091-8 PY 1994 BP 46 EP 51 PG 6 WC Engineering, Aerospace; Energy & Fuels; Engineering, Environmental; Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Energy & Fuels; Nuclear Science & Technology GA BC17W UT WOS:A1994BC17W00008 ER PT B AU SPYKER, RL RUCKSTADTER, EJ AF SPYKER, RL RUCKSTADTER, EJ GP AMER INST AERONAUT & ASTRONAUT TI AN AXIALLY LAMINATED ANISOTROPIC ROTOR DESIGN FOR A HIGH TORQUE DENSITY SWITCHED RELUCTANCE MOTOR SO 29TH INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, PTS 1-4: A COLLECTION OF TECHNICAL PAPERS LA English DT Proceedings Paper CT 29th Intersociety Energy Conversion Engineering Conference CY AUG 07-11, 1994 CL MONTEREY, CA SP AMER INST AERONAUT & ASTRONAUT C1 WRIGHT LAB,WRIGHT PATTERSON AFB,OH. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER INST AERONAUTICS & ASTRONAUTICS PI WASHINGTON PA 370 L'ENFANT PROMENADE SW, WASHINGTON, DC 20024-2518 BN 1-56347-091-8 PY 1994 BP 196 EP 201 PG 6 WC Engineering, Aerospace; Energy & Fuels; Engineering, Environmental; Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Energy & Fuels; Nuclear Science & Technology GA BC17W UT WOS:A1994BC17W00034 ER PT B AU GLEDHILL, K MARVIN, D AF GLEDHILL, K MARVIN, D GP AMER INST AERONAUT & ASTRONAUT TI FUTURE TRENDS IN SPACE PHOTOVOLTAICS SO 29TH INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, PTS 1-4: A COLLECTION OF TECHNICAL PAPERS LA English DT Proceedings Paper CT 29th Intersociety Energy Conversion Engineering Conference CY AUG 07-11, 1994 CL MONTEREY, CA SP AMER INST AERONAUT & ASTRONAUT C1 USAF,PHILLIPS LAB,DIV SPACE POWER & THERMAL MANAGEMENT,ALBUQUERQUE,NM. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMER INST AERONAUTICS & ASTRONAUTICS PI WASHINGTON PA 370 L'ENFANT PROMENADE SW, WASHINGTON, DC 20024-2518 BN 1-56347-091-8 PY 1994 BP 263 EP 266 PG 4 WC Engineering, Aerospace; Energy & Fuels; Engineering, Environmental; Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Energy & Fuels; Nuclear Science & Technology GA BC17W UT WOS:A1994BC17W00046 ER PT B AU LAMP, TR DONOVAN, BD AF LAMP, TR DONOVAN, BD GP AMER INST AERONAUT & ASTRONAUT TI UNATTENDED POWER SOURCES FOR REMOTE, HARSH ENVIRONMENTS SO 29TH INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, PTS 1-4: A COLLECTION OF TECHNICAL PAPERS LA English DT Proceedings Paper CT 29th Intersociety Energy Conversion Engineering Conference CY AUG 07-11, 1994 CL MONTEREY, CA SP AMER INST AERONAUT & ASTRONAUT C1 WRIGHT LAB,DIV AEROSP POWER,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMER INST AERONAUTICS & ASTRONAUTICS PI WASHINGTON PA 370 L'ENFANT PROMENADE SW, WASHINGTON, DC 20024-2518 BN 1-56347-091-8 PY 1994 BP 688 EP 693 PG 6 WC Engineering, Aerospace; Energy & Fuels; Engineering, Environmental; Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Energy & Fuels; Nuclear Science & Technology GA BC17W UT WOS:A1994BC17W00115 ER PT B AU HUBER, NF BOWMAN, WJ AF HUBER, NF BOWMAN, WJ GP AMER INST AERONAUT & ASTRONAUT TI EFFECT OF LONGITUDINAL VIBRATION ON THE CAPILLARY LIMIT OF A WRAPPED SCREEN WICK COPPER WATER HEAT PIPE SO 29TH INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, PTS 1-4: A COLLECTION OF TECHNICAL PAPERS LA English DT Proceedings Paper CT 29th Intersociety Energy Conversion Engineering Conference CY AUG 07-11, 1994 CL MONTEREY, CA SP AMER INST AERONAUT & ASTRONAUT C1 WRIGHT LABS,AERO PROP & POWER DIRECTORATE,WRIGHT PATTERSON AFB,OH. NR 0 TC 3 Z9 3 U1 0 U2 1 PU AMER INST AERONAUTICS & ASTRONAUTICS PI WASHINGTON PA 370 L'ENFANT PROMENADE SW, WASHINGTON, DC 20024-2518 BN 1-56347-091-8 PY 1994 BP 711 EP 716 PG 6 WC Engineering, Aerospace; Energy & Fuels; Engineering, Environmental; Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Energy & Fuels; Nuclear Science & Technology GA BC17W UT WOS:A1994BC17W00119 ER PT B AU DONOVAN, BD LAMP, TR AF DONOVAN, BD LAMP, TR GP AMER INST AERONAUT & ASTRONAUT TI THERMIONIC TECHNOLOGY PROGRAMS AT WRIGHT LABORATORY SO 29TH INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, PTS 1-4: A COLLECTION OF TECHNICAL PAPERS LA English DT Proceedings Paper CT 29th Intersociety Energy Conversion Engineering Conference CY AUG 07-11, 1994 CL MONTEREY, CA SP AMER INST AERONAUT & ASTRONAUT C1 WRIGHT LAB,DIV AEROSP POWER,WRIGHT PATTERSON AFB,OH 45433. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER INST AERONAUTICS & ASTRONAUTICS PI WASHINGTON PA 370 L'ENFANT PROMENADE SW, WASHINGTON, DC 20024-2518 BN 1-56347-091-8 PY 1994 BP 1015 EP 1020 PG 6 WC Engineering, Aerospace; Energy & Fuels; Engineering, Environmental; Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Energy & Fuels; Nuclear Science & Technology GA BC17W UT WOS:A1994BC17W00171 ER EF