FN Thomson Reuters Web of Science™
VR 1.0
PT J
AU Ranallo, RT
Kaminski, RW
George, T
Kordis, AA
Chen, Q
Szabo, K
Venkatesan, MM
AF Ranallo, Ryan T.
Kaminski, Robert W.
George, Tonia
Kordis, Alexis A.
Chen, Qing
Szabo, Kathleen
Venkatesan, Malabi M.
TI Virulence, Inflammatory Potential, and Adaptive Immunity Induced by
Shigella flexneri msbB Mutants
SO INFECTION AND IMMUNITY
LA English
DT Article
ID ESCHERICHIA-COLI O157-H7; COMPLETE DNA-SEQUENCE; LIPID-A;
SALMONELLA-TYPHIMURIUM; III SECRETION; INVASIN COMPLEX; VACCINE STRAIN;
SEROTYPE 2A; LIPOPOLYSACCHARIDE; MODEL
AB The ability of genetically detoxified lipopolysaccharide (LPS) to stimulate adaptive immune responses is an ongoing area of investigation with significant consequences for the development of safe and effective bacterial vaccines and adjuvants. One approach to genetic detoxification is the deletion of genes whose products modify LPS. The msbB1 and msbB2 genes, which encode late acyltransferases, were deleted in the Shigella flexneri 2a human challenge strain 2457T to evaluate the virulence, inflammatory potential, and acquired immunity induced by strains producing underacylated lipid A. Consistent with a reduced endotoxic potential, S. flexneri 2a msbB mutants were attenuated in an acute mouse pulmonary challenge model. Attenuation correlated with decreases in the production of proinflammatory cytokines and in chemokine release without significant changes in lung histopathology. The levels of specific proinflammatory cytokines (interleukin-1 beta [IL-1 beta], macrophage inflammatory protein 1 alpha [MIP-1 alpha], and tumor necrosis factor alpha [TNF-alpha]) were also significantly reduced after infection of mouse macrophages with either single or double msbB mutants. Surprisingly, the msbB double mutant displayed defects in the ability to invade, replicate, and spread within epithelial cells. Complementation restored these phenotypes, but the exact nature of the defects was not determined. Acquired immunity and protective efficacy were also assayed in the mouse lung model, using a vaccination-challenge study. Both humoral and cellular responses were generally robust in msbB-immunized mice and afforded significant protection from lethal challenge. These data suggest that the loss of either msbB gene reduces the endotoxicity of Shigella LPS but does not coincide with a reduction in protective immune responses.
C1 [Ranallo, Ryan T.; Kaminski, Robert W.; George, Tonia; Kordis, Alexis A.; Chen, Qing; Venkatesan, Malabi M.] Walter Reed Army Inst Res, Div Bacterial & Rickettsial Dis, Silver Spring, MD 20910 USA.
[Szabo, Kathleen] Walter Reed Army Inst Res, Div Diagnost Pathol, Silver Spring, MD 20910 USA.
RP Ranallo, RT (reprint author), Walter Reed Army Inst Res, Div Bacterial & Rickettsial Dis, Silver Spring, MD 20910 USA.
EM ryan.ranallo@amedd.army.mil
NR 52
TC 14
Z9 14
U1 0
U2 0
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0019-9567
J9 INFECT IMMUN
JI Infect. Immun.
PD JAN
PY 2010
VL 78
IS 1
BP 400
EP 412
DI 10.1128/IAI.00533-09
PG 13
WC Immunology; Infectious Diseases
SC Immunology; Infectious Diseases
GA 535QC
UT WOS:000272984300043
PM 19884336
ER
PT J
AU Kang, G
Hartzell, JD
Howard, R
Wood-Morris, RN
Johnson, MD
Fraser, S
Weintrob, A
Wortmann, G
AF Kang, Grace
Hartzell, Joshua D.
Howard, Robin
Wood-Morris, Robert N.
Johnson, Mark D.
Fraser, Susan
Weintrob, Amy
Wortmann, Glenn
TI Mortality Associated with Acinetobacter baumannii Complex Bacteremia
among Patients with War-Related Trauma
SO INFECTION CONTROL AND HOSPITAL EPIDEMIOLOGY
LA English
DT Article
ID INFECTION; IMPACT; RESISTANCE
AB We investigated the mortality associated with Acinetobacter baumannii complex bacteremia among a cohort of patients hospitalized for war-related trauma. Despite a high prevalence of multidrug-resistant strains, the 30-day mortality rate was 2%. For relatively young patients with war-related trauma, A. baumannii complex bacteremia appears to be associated with a low risk of death.
C1 [Hartzell, Joshua D.; Wood-Morris, Robert N.; Johnson, Mark D.; Fraser, Susan; Weintrob, Amy; Wortmann, Glenn] Walter Reed Army Med Ctr, Dept Med, Infect Dis Serv, Washington, DC 20307 USA.
[Howard, Robin] Walter Reed Army Med Ctr, Dept Clin Invest, Washington, DC 20307 USA.
RP Wortmann, G (reprint author), Walter Reed Army Med Ctr, Dept Med, Infect Dis Serv, Bldg 2,Ward 63,6900 Georgia Ave NW, Washington, DC 20307 USA.
EM glenn.wortmann@us.army.mil
NR 10
TC 11
Z9 12
U1 0
U2 2
PU UNIV CHICAGO PRESS
PI CHICAGO
PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA
SN 0899-823X
J9 INFECT CONT HOSP EP
JI Infect. Control Hosp. Epidemiol.
PD JAN
PY 2010
VL 31
IS 1
BP 92
EP 94
DI 10.1086/649220
PG 3
WC Public, Environmental & Occupational Health; Infectious Diseases
SC Public, Environmental & Occupational Health; Infectious Diseases
GA 528SY
UT WOS:000272468400016
PM 19929690
ER
PT J
AU Lunday, BJ
Sherali, HD
AF Lunday, Brian J.
Sherali, Hanif D.
TI A Dynamic Network Interdiction Problem
SO INFORMATICA
LA English
DT Article
DE network interdiction; resource allocation; minimax flow problems;
dynamic formulation; alternating heuristic
ID FLOW NETWORK
AB We present a novel dynamic network interdiction model that accounts for interactions between an interdictor deploying resources on arcs in a digraph and an evader traversing the network from a designated source to a known terminus, wherein the agents may modify strategies in selected subsequent periods according to respective decision and implementation cycles. For the resulting minimax model, we develop a reformulation that facilitates a direct solution procedure using commercial software or via a proposed alternating heuristic. We examine certain related stability and convergence issues, demonstrate special convergence cases, and provide insights into the computational performance of the solution procedures.
C1 [Lunday, Brian J.] US Mil Acad, Dept Math Sci, West Point, NY 10996 USA.
[Sherali, Hanif D.] Virginia Polytech Inst & State Univ, Grado Dept Ind & Syst Engn, Blacksburg, VA 24061 USA.
RP Lunday, BJ (reprint author), US Mil Acad, Dept Math Sci, West Point, NY 10996 USA.
EM brian.lunday@usma.edu; hanifs@vt.edu
FU National Science Foundation [CMMI-0969169]
FX This work is partially supported by the National Science Foundation
under Grant No. CMMI-0969169. The authors gratefully acknowledge Dr.
Nick Sahinidis of the Sahinidis Optimization Group at Carnegie Mellon
University for permitting the use of the AlphaECP, BARON, CoinBonmin,
DICOPT, and SBB solvers, as well as Dr. C. Patrick Koelling for
suggesting the topic of this investigation. We also thank the executive
editor and anonymous referees for their constructive comments that have
helped improve the presentation of this paper.
NR 21
TC 7
Z9 8
U1 0
U2 2
PU INST MATHEMATICS & INFORMATICS
PI VILNIUS
PA AKADEMIJOS STR 4, VILNIUS LT-08663, LITHUANIA
SN 0868-4952
J9 INFORMATICA-LITHUAN
JI Informatica
PY 2010
VL 21
IS 4
BP 553
EP 574
PG 22
WC Computer Science, Information Systems; Mathematics, Applied
SC Computer Science; Mathematics
GA 703MP
UT WOS:000285982300006
ER
PT S
AU Burks, SD
Teaney, BP
AF Burks, Stephen D.
Teaney, Brian P.
BE Holst, GC
Krapels, KA
TI Display noise effects on infrared system target acquisition performance
SO INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING XXI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Infrared Systems - Design, Analysis, Modeling, and Testing
XXI
CY APR 06-08, 2010
CL Orlando, FL
SP SPIE
AB The presence of noise in an IR system adversely impacts task performance in many cases. Typically when modeling the effect of noise on task performance the focus is on the noise generated at the front end of the system (detector, amplifier, etc). However, there are cases when noise may arise in the post-sample of the system due to different display technologies, etc. This paper presents a means to determine the effect of display noise on the sensor system noise under a variety of conditions. A modeling study demonstrates that the effect of display noise correlates to the predicted modeled performance.
C1 [Burks, Stephen D.; Teaney, Brian P.] USA, RDECOM CERDEC, Night Vis & Elect Sensors Directorate, Ft Belvoir, VA 22060 USA.
RP Burks, SD (reprint author), USA, RDECOM CERDEC, Night Vis & Elect Sensors Directorate, 10221 Burbeck Rd, Ft Belvoir, VA 22060 USA.
NR 6
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8126-9
J9 PROC SPIE
PY 2010
VL 7662
AR 766210
DI 10.1117/12.850881
PG 7
WC Optics; Physics, Applied
SC Optics; Physics
GA BSO14
UT WOS:000285083100030
ER
PT S
AU Du Bosq, T
Preece, B
AF Du Bosq, Todd
Preece, Bradley
BE Holst, GC
Krapels, KA
TI Improved target signature definition for modeling performance of
high-gain saturated imagery
SO INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING XXI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Infrared Systems - Design, Analysis, Modeling, and Testing
XXI
CY APR 06-08, 2010
CL Orlando, FL
SP SPIE
DE contrast; enhancement; scene contrast temperature; target acquisition;
performance modeling; saturation; dynamic range
AB The standard model used to describe the performance of infrared sensors is the U. S. Army thermal target acquisition model, NVThermIP. The model is characterized by the apparent size and contrast of the target, and the resolution and sensitivity of the sensor. Currently, manual gain and level determine optimal contrast for military targets. The Night Vision models are calibrated to such images using a spatial average contrast consisting of the root sum squared of the difference between the target and background means, and the standard deviation of the target internal contrast. This definition of contrast applied to the model will show an unrealistic increase in performance for saturated targets. This paper presents a modified definition of target contrast for use in NVThermIP, including a threshold value for target to background mean difference and means to remove saturated pixels from the standard deviation of the target. Human perception experiments were performed and the measured results are compared with the predicted performance using the modified target contrast definition in NVThermIP.
C1 [Du Bosq, Todd] USA, RDECOM CERDEC NVESD, Ft Belvoir, VA 22060 USA.
RP Du Bosq, T (reprint author), USA, RDECOM CERDEC NVESD, 10221 Burbeck Rd, Ft Belvoir, VA 22060 USA.
NR 11
TC 0
Z9 0
U1 1
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8126-9
J9 PROC SPIE
PY 2010
VL 7662
AR 76620N
DI 10.1117/12.851017
PG 12
WC Optics; Physics, Applied
SC Optics; Physics
GA BSO14
UT WOS:000285083100020
ER
PT S
AU Espinola, RL
Cha, J
Leonard, K
AF Espinola, Richard L.
Cha, Jae
Leonard, Kevin
BE Holst, GC
Krapels, KA
TI Novel methodologies for the measurement of atmospheric turbulence
effects
SO INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING XXI
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Infrared Systems - Design, Analysis, Modeling, and Testing
XXI
CY APR 06-08, 2010
CL Orlando, FL
SP SPIE
DE Turbulence; measurement; modeling
ID MODULATION TRANSFER-FUNCTION; QUALITY
AB Atmospheric turbulence is an imaging phenomenon that introduces blur, distortion, and intensity fluctuations that corrupt image quality and can decrease target acquisition performance. The modeling of imaging sensors requires an accurate description of turbulence effects. We present two novel methodologies for the measurement of the turbulence MTF in infrared imagery. First, the structural similarity metric is used to compare pristine and degraded imagery. Second, contrast modulations of radial bar targets are analyzed to extract an equivalent blur. Human perception tests are compared against model predictions. The results show that complex turbulence effects can be measured and modeled with simple MTF blurs.
C1 [Espinola, Richard L.; Cha, Jae; Leonard, Kevin] USA, RDECOM CERDEC NVESD, Ft Belvoir, VA 22060 USA.
RP Espinola, RL (reprint author), USA, RDECOM CERDEC NVESD, Ft Belvoir, VA 22060 USA.
NR 12
TC 4
Z9 4
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8126-9
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7662
AR 76620W
DI 10.1117/12.852294
PG 12
WC Optics; Physics, Applied
SC Optics; Physics
GA BSO14
UT WOS:000285083100027
ER
PT S
AU Fanning, JD
Reynolds, JP
AF Fanning, Jonathan D.
Reynolds, Joseph P.
BE Holst, GC
Krapels, KA
TI Modeling performance using sensor simulation and image metrics
SO INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING XXI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Infrared Systems - Design, Analysis, Modeling, and Testing
XXI
CY APR 06-08, 2010
CL Orlando, FL
SP SPIE
DE NVThermIP; Image-based target acquisition model; SSIM
ID STRUCTURAL SIMILARITY
AB This paper presents an image-based model for target identification performance. This model is intended as an alternative to existing linear models such as NVThermIP. The image-based model allows arbitrary non-linear image processing to be applied to actual images which are compared using a human perception model. This model simulates an image from a given sensor and compares the simulated image to a reference high-quality image. For a given target set, the image-based model generates a confusion matrix which is used to calculate the average probability of identification. The perception metric used to compare the images is a multiscale version of the SSIM. The output of the image-based model is reasonably close to the output of the NVThermIP theory when tested on a standard linear sensor system. The output also agrees well with data from a human perception test.
C1 [Fanning, Jonathan D.; Reynolds, Joseph P.] USA, RDECOM CERDEC, Night Vis & Elect Sensors Directorate, Ft Belvoir, VA 22060 USA.
RP Fanning, JD (reprint author), USA, RDECOM CERDEC, Night Vis & Elect Sensors Directorate, 10221 Burbeck Rd, Ft Belvoir, VA 22060 USA.
NR 12
TC 2
Z9 2
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8126-9
J9 PROC SPIE
PY 2010
VL 7662
AR 76620D
DI 10.1117/12.851343
PG 12
WC Optics; Physics, Applied
SC Optics; Physics
GA BSO14
UT WOS:000285083100010
ER
PT S
AU Friedman, MH
Du Bosq, TW
Flug, EA
AF Friedman, Melvin H.
Du Bosq, Todd W.
Flug, Eric A.
BE Holst, GC
Krapels, KA
TI Analytical Models Quantify Military Benefit of Collaborative Search
SO INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING XXI
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Infrared Systems - Design, Analysis, Modeling, and Testing
XXI
CY APR 06-08, 2010
CL Orlando, FL
SP SPIE
DE Search; Memoryless search; Field of regard search; Detection time;
Simulation; Perception test; Verification
AB Analytical Model 1 describes how long it takes the first observer to find a target when multiple observers search a field of regard using imagery provided by a single sensor. This model, developed using probability concepts, suggests considerable benefits accrue from collaborative search: when P(infinity) is near one and with ten observers the mean detection time (in reduced time) is reduced by almost an order of magnitude when compared to that of a single observer. To get the instant of detection in clock time we add the delay time t(d) to the reduced time. Empirical fits for t(d) and tau are also given in the paper. Model 1 was verified/validated by computer simulation and perception experiments. Here ten observers searched sixty computer generated fields of regard (each one was 60 x 20 degrees) for a single military vehicle. Analytical Model 2 describes how the probability of target acquisition increases with the number of observers. The results of Model 2 suggest that probability of target acquisition increases considerably when multiple observers independently search a field of regard. Model 2 was verified by simulation but not by perception experiment. Models 1 and 2 are pertinent to development of search strategies with multiple observers and are expected to find use in wargaming for evaluating the efficacy of networked imaging sensors.
C1 [Friedman, Melvin H.; Du Bosq, Todd W.; Flug, Eric A.] USA, RDECOM, Commun Elect Res Dev & Engn Ctr, Night Vis & Elect Sensors Directorate, Ft Belvoir, VA 22060 USA.
RP Friedman, MH (reprint author), USA, RDECOM, Commun Elect Res Dev & Engn Ctr, Night Vis & Elect Sensors Directorate, Ft Belvoir, VA 22060 USA.
NR 7
TC 1
Z9 2
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8126-9
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7662
AR 76620B
DI 10.1117/12.851521
PG 12
WC Optics; Physics, Applied
SC Optics; Physics
GA BSO14
UT WOS:000285083100008
ER
PT S
AU Hodgkin, VA
Boettcher, EJ
Acton, DD
AF Hodgkin, Van A.
Boettcher, Evelyn J.
Acton, David D.
BE Holst, GC
Krapels, KA
TI Field Calibration of Reflective Imagery of Targets and Backgrounds
SO INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING XXI
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Infrared Systems - Design, Analysis, Modeling, and Testing
XXI
CY APR 06-08, 2010
CL Orlando, FL
SP SPIE
DE target signature; SWIR; CCD imaging equation; dark current
AB This paper describes a simple but powerful method for calibrating the apparent broadband flux reflectance of target and background materials in short wave infrared (SWIR) imagery in the field, a method that can also be used in other reflective bands. The method is analogous to the approach of field calibration of thermal IR (infrared) imagery in which thermally regulated emissive references are positioned in a peripheral region of the sensor FOV to provide apparent temperature versus image grayscale. The principle difference between the emissive TIR approach and the reflective approach described here is that passive, well calibrated reflective references are used for the SWIR and do not require active emission of in-band radiation. This approach was recently used in a field collection using a high quality, well characterized broadband SWIR imager. Theory, analysis, and results are presented here.
C1 [Hodgkin, Van A.] USA, RDECOM CERDEC, Night Vis & Elect Sensors Directorate, Ft Belvoir, VA USA.
RP Hodgkin, VA (reprint author), USA, RDECOM CERDEC, Night Vis & Elect Sensors Directorate, Ft Belvoir, VA USA.
NR 4
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8126-9
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7662
AR 76620Y
DI 10.1117/12.851014
PG 9
WC Optics; Physics, Applied
SC Optics; Physics
GA BSO14
UT WOS:000285083100029
ER
PT S
AU Howell, C
Halford, C
Krapels, K
AF Howell, Christopher
Halford, Carl
Krapels, Keith
BE Holst, GC
Krapels, KA
TI Image fusion algorithm assessment using measures of complementary and
redundant information
SO INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING XXI
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Infrared Systems - Design, Analysis, Modeling, and Testing
XXI
CY APR 06-08, 2010
CL Orlando, FL
SP SPIE
DE Image fusion; image fusion metrics; complementary information; image
fusion quality assessment
AB Often various amounts of complementary information exist when imagery of the same scene is captured in different spectral bands. Image fusion should merge the available information within the source images into a single fused image that contains more relevant information compared to any single source image. The benefits of image fusion are more readily seen when the source images contain complementary information. Intuitively complementary information allows for measurable improvements in human task performance. However, quantifying the effect complementary information has on fusion algorithms remains open research. The goal of this study is to quantify the effect of complementary information on image fusion algorithm performance. Algorithm performance is assessed using a new performance metric, based on mutual information. Human perception experiments are conducted using controlled amounts of complementary information as input to a simple fusion process. This establishes the relationship between complementary information and task performance. The results of this study suggest a correlation exists between the proposed metric and identification task performance.
C1 [Howell, Christopher; Krapels, Keith] USA, RDECOM CERDEC NVESD, Ft Belvoir, VA 22060 USA.
RP Howell, C (reprint author), USA, RDECOM CERDEC NVESD, 10221 Burbeck Rd, Ft Belvoir, VA 22060 USA.
NR 7
TC 0
Z9 0
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8126-9
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7662
AR 76620J
DI 10.1117/12.850295
PG 10
WC Optics; Physics, Applied
SC Optics; Physics
GA BSO14
UT WOS:000285083100016
ER
PT S
AU Maschal, RA
Young, SS
Reynolds, J
Krapels, K
Fanning, J
Corbin, T
AF Maschal, Robert A., Jr.
Young, S. Susan
Reynolds, Joe
Krapels, Keith
Fanning, Jonathan
Corbin, Ted
BE Holst, GC
Krapels, KA
TI Review of Bayer Pattern CFA Demosaicing with New Quality Assessment
Algorithms
SO INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING XXI
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Infrared Systems - Design, Analysis, Modeling, and Testing
XXI
CY APR 06-08, 2010
CL Orlando, FL
SP SPIE
DE Bayer pattern; CFA demosaicing; color image quality assessment
AB Given the frequent lack of a reference image or ground truth when performance testing Bayer pattern color filter array (CFA) demosaicing algorithms, two new no-reference quality assessment algorithms are proposed. These new quality assessment algorithms give a relative comparison of two demosaicing algorithms by measuring the presence of two common artifacts in their output images. For this purpose, various demosaicing algorithms are reviewed, especially adaptive color plane, gradient based methods, and median filtering, with particular attention paid to the false color and edge blurring artifacts common to all demosaicing algorithms. Classic quality assessment methods which require a reference image, such as MSE, PSNR, and Delta E, are reviewed, their typical usage characterized, and their associated pitfalls identified. With this information in mind, the motivations for no-reference quality assessment are discussed. The new quality assessment algorithms are then designed for a relative comparison of two images demosaiced from the same CFA data by measuring the sharpness of the edges and determining the presence of false colors. Demosaicing algorithms described earlier are evaluated and ranked using these new algorithms. A large quantity of real images is given for review. These images are also used to justify those rankings suggested by the new quality assessment algorithms. This work provides a path forward for future research investigating possible relationships between CFA demosaicing and color image super-resolution.
C1 [Maschal, Robert A., Jr.; Young, S. Susan] USA, Res Lab, Adelphi, MD 20783 USA.
RP Maschal, RA (reprint author), USA, Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
NR 19
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8126-9
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7662
AR 766215
DI 10.1117/12.849314
PG 12
WC Optics; Physics, Applied
SC Optics; Physics
GA BSO14
UT WOS:000285083100034
ER
PT S
AU Montoya, J
Kennerly, S
Rede, E
AF Montoya, Joseph
Kennerly, Steve
Rede, Edward
BE Holst, GC
Krapels, KA
TI NIR Small Arms Muzzle Flash
SO INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING XXI
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Infrared Systems - Design, Analysis, Modeling, and Testing
XXI
CY APR 06-08, 2010
CL Orlando, FL
SP SPIE
DE Alkali Metal; Near-Infrared; small arms; muzzle flash; potassium;
silicon; visible; spectral
AB Utilization of Near-Infrared (NIR) spectral features in a muzzle flash will allow for small arms detection using low cost silicon (Si)-based imagers. Detection of a small arms muzzle flash in a particular wavelength region is dependent on the intensity of that emission, the efficiency of source emission transmission through the atmosphere, and the relative intensity of the background scene. The NIR muzzle flash signature exists in the relatively large Si spectral response wavelength region of 300 nm-1100 nm, which allows for use of commercial-off-the-shelf (COTS) Si-based detectors. The alkali metal origin of the NIR spectral features in the 7.62 x 39-mm round muzzle flash is discussed, and the basis for the spectral bandwidth is examined, using a calculated Voigt profile. This report will introduce a model of the 7.62 x 39-mm NIR muzzle flash signature based on predicted source characteristics. Atmospheric limitations based on NIR spectral regions are investigated in relation to the NIR muzzle flash signature. A simple signal-to-clutter ratio (SCR) metric is used to predict sensor performance based on a model of radiance for the source and solar background and pixel registered image subtraction.
C1 [Montoya, Joseph; Rede, Edward] USA, Res Lab, Survivabil Lethal Anal Dir WSMR, White Sands Missile Range, NM 88002 USA.
RP Montoya, J (reprint author), USA, Res Lab, Survivabil Lethal Anal Dir WSMR, White Sands Missile Range, NM 88002 USA.
NR 17
TC 3
Z9 3
U1 1
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8126-9
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7662
AR 766203
DI 10.1117/12.849737
PG 12
WC Optics; Physics, Applied
SC Optics; Physics
GA BSO14
UT WOS:000285083100001
ER
PT S
AU Moore, RK
Camp, HA
Moyer, S
Halford, CE
AF Moore, Richard K.
Camp, H. A.
Moyer, Steve
Halford, Carl E.
BE Holst, GC
Krapels, KA
TI Masked target transform volume clutter metric applied to vehicle search
SO INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING XXI
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Infrared Systems - Design, Analysis, Modeling, and Testing
XXI
CY APR 06-08, 2010
CL Orlando, FL
SP SPIE
DE vehicle search; clutter; masked target transform volume; time-limited
search; performance modeling
ID DETECTION PERFORMANCE
AB The Night Vision and Electronic Sensors Directorate's current time-limited search model, which makes use of the targeting task performance (TTP) metric to describe imager quality, does not explicitly account for the effects of clutter on observer performance. The masked target transform volume (MTTV) clutter metric has been presented previously, but is first applied to the results of a vehicle search perception experiment with simulated thermal imagery here. NVESD's Electro-Optical Simulator program was used to generate hundreds of synthetic images of tracked vehicles hidden in a rural environment. 12 observers searched for the tracked vehicles and their performance is compared to the MTTV clutter level, signal-to-clutter ratios using several clutter metrics from open literature, and to the product of target size and contrast. The investigated clutter metrics included the Schmeider-Weathersby statistical variance, Silk's statistical variance, Aviram's probability of edge detection metric, and Chang's target structural similarity metric. The MTTV was shown to better model observer performance as measured by the perception experiment than any of the other compared metrics, including the product of target size and contrast.
C1 [Moore, Richard K.] USA, ATEC DTC, Redstone Test Ctr, Redstone Arsenal, AL 35898 USA.
RP Moore, RK (reprint author), USA, ATEC DTC, Redstone Test Ctr, Redstone Arsenal, AL 35898 USA.
NR 13
TC 3
Z9 3
U1 0
U2 5
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8126-9
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7662
AR 76620M
DI 10.1117/12.850429
PG 11
WC Optics; Physics, Applied
SC Optics; Physics
GA BSO14
UT WOS:000285083100019
ER
PT S
AU Moore, RK
Camp, HA
Moyer, S
Halford, CE
AF Moore, Richard K.
Camp, H. A.
Moyer, Steve
Halford, Carl E.
BE Holst, GC
Krapels, KA
TI Triangle search experiment to isolate scene clutter effects
SO INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING XXI
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Infrared Systems - Design, Analysis, Modeling, and Testing
XXI
CY APR 06-08, 2010
CL Orlando, FL
SP SPIE
DE clutter; visual search; perception testing; masked target transform
volume metric
ID DETECTION PERFORMANCE
AB A perception experiment was performed in an effort to measure the effect of clutter on search performance while keeping target size, target contrast, and system bandwidth constant. In the NVESD time-limited search (TLS) model, detection performance is said to only vary with changes in target size and target-to-background contrast, if the imaging system and the search time limit are left constant(4,8). The results of this experiment show that changes in scene clutter produce changes in detection performance when these other factors remain unchanged, thereby making a stronger case for the inclusion of a clutter metric into the NVESD TLS model. When using real imagery, it is difficult to find good examples of change in clutter without changes in target size, contrast, noise, or other factors also being present. Using computer generated imagery of triangles and tilted squares allowed the clutter aspect of search to be experimentally isolated. When applied to imagery in the perception experiment, the masked target transform volume clutter metric was shown to correlate well with the average observer response time.
C1 [Moore, Richard K.] USA, ATEC DTC, Redstone Test Ctr, Redstone Arsenal, AL 35898 USA.
RP Moore, RK (reprint author), USA, ATEC DTC, Redstone Test Ctr, Redstone Arsenal, AL 35898 USA.
NR 9
TC 0
Z9 0
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8126-9
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7662
AR 76620C
DI 10.1117/12.850457
PG 9
WC Optics; Physics, Applied
SC Optics; Physics
GA BSO14
UT WOS:000285083100009
ER
PT S
AU O'Connor, JD
Hixson, J
McKnight, P
Peterson, MS
Parasuraman, R
AF O'Connor, John D.
Hixson, Jonathan
McKnight, Patrick
Peterson, Matthew S.
Parasuraman, Raja
BE Holst, GC
Krapels, KA
TI Resampling analysis of participant variance to improve the efficiency of
sensor modeling perception experiments
SO INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING XXI
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Infrared Systems - Design, Analysis, Modeling, and Testing
XXI
CY APR 06-08, 2010
CL Orlando, FL
SP SPIE
AB Night Vision and Electronic Sensors Directorate (NVESD) Modeling and Simulation Division (MSD) sensor models, such as NV Therm IP, are developed through perception experiments that investigate phenomena associated with sensor performance (e. g. sampling, noise, sensitivity). A standardized laboratory perception testing method developed in the mid-1990's has been responsible for advances in sensor modeling that are supported by field sensor performance experiments.(1) The number of participants required to yield dependable results for these experiments could not be estimated because the variance in performance due to participant differences was not known. NVESD and George Mason University (GMU) scientists measured the contribution of participant variance within the overall experimental variance for 22 individuals each exposed to 1008 stimuli. Results of the analysis indicate that the total participant contribution to overall experimental variance was between 1% and 2%.
C1 [O'Connor, John D.; Hixson, Jonathan] USA, RDECOM CERDEC NVESD, Ft Belvoir, VA 22060 USA.
RP O'Connor, JD (reprint author), USA, RDECOM CERDEC NVESD, Ft Belvoir, VA 22060 USA.
NR 3
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8126-9
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7662
AR 76620L
DI 10.1117/12.851018
PG 6
WC Optics; Physics, Applied
SC Optics; Physics
GA BSO14
UT WOS:000285083100018
ER
PT S
AU O'Connor, JD
Hixson, J
Thomas, JM
Peterson, MS
Parasuraman, R
AF O'Connor, John D.
Hixson, Jonathon
Thomas, James M., Jr.
Peterson, Matthew S.
Parasuraman, Raja
BE Holst, GC
Krapels, KA
TI Adaptive design of visual perception experiments
SO INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING XXI
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Infrared Systems - Design, Analysis, Modeling, and Testing
XXI
CY APR 06-08, 2010
CL Orlando, FL
SP SPIE
AB Meticulous experimental design may not always prevent confounds from affecting experimental data acquired during visual perception experiments. Although experimental controls reduce the potential effects of foreseen sources of interference, interaction, or noise, they are not always adequate for preventing the confounding effects of unforeseen forces. Visual perception experimentation is vulnerable to unforeseen confounds because of the nature of the associated cognitive processes involved in the decision task. Some confounds are beyond the control of experimentation, such as what a participant does immediately prior to experimental participation, or the participant's attitude or emotional state. Other confounds may occur through ignorance of practical control methods on the part of the experiment's designer. The authors conducted experiments related to experimental fatigue and initially achieved significant results that were, upon re-examination, attributable to a lack of adequate controls. Re-examination of the original results and the processes and events that led to them yielded a second experimental design with more experimental controls and significantly different results. The authors propose that designers of visual perception experiments can benefit from planning to use a test-fix-test or adaptive experimental design cycle, so that unforeseen confounds in the initial design can be remedied.
C1 [O'Connor, John D.; Hixson, Jonathon] USA, RDECOM CERDEC NVESD, Ft Belvoir, VA 22060 USA.
RP O'Connor, JD (reprint author), USA, RDECOM CERDEC NVESD, Ft Belvoir, VA 22060 USA.
NR 4
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8126-9
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7662
AR 76620H
DI 10.1117/12.851032
PG 16
WC Optics; Physics, Applied
SC Optics; Physics
GA BSO14
UT WOS:000285083100014
ER
PT S
AU Teaney, B
Reynolds, J
AF Teaney, Brian
Reynolds, Joseph
BE Holst, GC
Krapels, KA
TI Next generation imager performance model
SO INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING XXI
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Infrared Systems - Design, Analysis, Modeling, and Testing
XXI
CY APR 06-08, 2010
CL Orlando, FL
SP SPIE
AB The next generation of Army imager performance models is currently under development at NVESD. The aim of this new model is to provide a flexible and extensible engineering tool for system design which encapsulates all of the capabilities of the existing Night Vision model suite (NVThermIP, SSCamIP, etc) along with many new design tools and features including a more intuitive interface, the ability to perform trade studies, and a library of standard and user generated components. By combining the previous model architectures in one interface the new design is better suited to capture emerging technologies such as fusion and new sensor modalities. In this paper we will describe the general structure of the model and some of its current capabilities along with future development plans.
C1 [Teaney, Brian; Reynolds, Joseph] USA, RDECOM CERDEC, Night Vis & Elect Sensors Directorate, Washington, DC 20310 USA.
RP Teaney, B (reprint author), USA, RDECOM CERDEC, Night Vis & Elect Sensors Directorate, Washington, DC 20310 USA.
NR 0
TC 15
Z9 16
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8126-9
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7662
AR 76620F
DI 10.1117/12.850876
PG 8
WC Optics; Physics, Applied
SC Optics; Physics
GA BSO14
UT WOS:000285083100012
ER
PT J
AU Das, NC
AF Das, Naresh C.
TI Effect of grating on IR LED device performance
SO INFRARED PHYSICS & TECHNOLOGY
LA English
DT Article
DE LED device; Surface emitting devices; IR scene projection; LWIR emitters
ID LIGHT-EMITTING-DIODES; INTERBAND CASCADE LASERS; ELECTROLUMINESCENCE
AB The electroluminescence in the range of 3-4.5 mu m and 6-10 mu m from a Sb-based type II interband quantum cascade structure is reported. We measured the light emission from the top surface of the LED device with different grating structures. We used different etch depths for the grating formation. The light-current-voltage (LIV) characteristics measured at both room and cryogenic temperatures show that the device with 45 degrees angle grating and 1.0 mu m deep etch onto the GaSb surface has the highest emission power. Published by Elsevier B.V.
C1 Army Res Lab, Microphoton Branch, Adelphi, MD 20783 USA.
RP Das, NC (reprint author), Army Res Lab, Microphoton Branch, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
EM ndas@arl.army.mil
NR 13
TC 4
Z9 4
U1 0
U2 9
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1350-4495
J9 INFRARED PHYS TECHN
JI Infrared Phys. Technol.
PD JAN
PY 2010
VL 53
IS 1
BP 71
EP 75
DI 10.1016/j.infrared.2009.09.001
PG 5
WC Instruments & Instrumentation; Optics; Physics, Applied
SC Instruments & Instrumentation; Optics; Physics
GA 556OF
UT WOS:000274599800012
ER
PT S
AU Choi, KK
Jhabvala, MD
Forrai, DP
Sun, J
Endres, D
AF Choi, K. K.
Jhabvala, M. D.
Forrai, D. P.
Sun, J.
Endres, D.
BE Andresen, BF
Fulop, GF
Norton, PR
TI C-QWIPs for Far Infrared Detection
SO INFRARED TECHNOLOGY AND APPLICATIONS XXXVI, PTS 1 AND 2
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Infrared Technology and Applications XXXVI
CY APR 05-09, 2010
CL Orlando, FL
SP SPIE
DE QWIP; FPA; NE Delta T
ID PHOTODETECTORS
AB We have extended our investigation of corrugated quantum well infrared photodetector focal plane arrays (C-QWIP FPAs) into the far infrared regime. Specifically, we are developing the detectors for the Thermal Infrared Sensor (TIRS) used in the Landsat Data Continuity Mission. This mission requires infrared detection cutoff at 12.5 mu m and FPAs operated at 43 K. To maintain a low dark current in these extended wavelengths, we adopted a low doping density of 0.6 x 10(18) cm(-3) and a bound-to-bound state detector in one of the designs. The internal absorption QE is calculated to be 25.4% for a pixel pitch of 25 microns and 60 periods of QWs. With a pixel fill factor of 80% and a substrate transmission of 70.9%, the external QE is 14.4%. To yield the theoretical conversion efficiency CE, the photoconductive gain was measured and is 0.25 at 5 V, from which CE is predicted to be 3.6%. This value is in agreement with the 3.5% from the FPA measurement. Meanwhile, the dark current is measured to be 2.1 x 10(-6) A/cm(2) at 43 K. For regular infrared imaging above 8 mu m, the FPA will have an NETD of 16 mK at 2 ms integration time in the presence of 260 read noise electrons, and it increases to 22 mK at 51 K. The highest operability of the tested FPAs is 99.967%. With the CE agreement, we project the FPA performance in the far infrared regime up to 30 mu m cutoff.
C1 [Choi, K. K.; Sun, J.] USA, Res Lab, Adelphi, MD 20783 USA.
RP Choi, KK (reprint author), USA, Res Lab, Adelphi, MD 20783 USA.
RI Choi, Kwong-Kit/K-9205-2013
NR 5
TC 0
Z9 0
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8124-5
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7660
AR 76603K
DI 10.1117/12.849715
PG 11
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BSR52
UT WOS:000285545300120
ER
PT S
AU Gupta, N
Ashe, PR
Tan, SS
AF Gupta, Neelam
Ashe, Philip R.
Tan, Songsheng
BE Andresen, BF
Fulop, GF
Norton, PR
TI A Miniature Snapshot Multispectral Imager
SO INFRARED TECHNOLOGY AND APPLICATIONS XXXVI, PTS 1 AND 2
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Infrared Technology and Applications XXXVI
CY APR 05-09, 2010
CL Orlando, FL
SP SPIE
DE Fabry-Perot filter; multispectral; SWIR; microlens optics
ID FABRICATION; MIRRORS
AB We present a miniature snapshot multispectral imager that operates in the short wavelength infrared region (SWIR) and has a number of applications. The system is low-weight, portable with a miniature platform and requires low power. The imager uses a 4x4 Fabry-Perot filter array operating from 1487 to 1769 nm with a spectral bandpass similar to 10 nm. The design of the filters is based on using a MEMS shadow mask technique to fabricate a Fabry-Perot etalon with multilayer dielectric mirrors. The filter array subsystem is installed in a commercial handheld InGaAs camera and the imaging lens of the camera is replaced by a custom designed 4x4 microlens array with telecentric imaging performance in each of the 16 sub-imaging channels. The imager was used to image a number of different indoor and outdoor scenes. The microlens optics and filter design is quite flexible and can be tailored for any wavelength region from UV to LWIR and the spectral bandpass can also be customized to meet the requirements. In this paper we will discuss the design and characterization of the filter array, the microlens optical package, and the imager and present imaging results obtained.
C1 [Gupta, Neelam] USA, Res Lab, Adelphi, MD 20783 USA.
RP Gupta, N (reprint author), USA, Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
EM philip.ashe@spectralsight.com
RI Gupta, Neelam/B-8702-2013
NR 14
TC 1
Z9 1
U1 0
U2 6
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8124-5
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7660
AR 76602G
DI 10.1117/12.852661
PG 12
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BSR52
UT WOS:000285545300083
ER
PT S
AU Pitt, TS
Wood, SB
Waddle, CE
Edwards, WD
Yeske, BS
AF Pitt, Timothy S.
Wood, Sam B.
Waddle, Caleb E.
Edwards, William D.
Yeske, Ben S.
BE Andresen, BF
Fulop, GF
Norton, PR
TI Uncooled infrared development for small unmanned aerial vehicles
SO INFRARED TECHNOLOGY AND APPLICATIONS XXXVI, PTS 1 AND 2
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Infrared Technology and Applications XXXVI
CY APR 05-09, 2010
CL Orlando, FL
SP SPIE
AB The US Army Aviation and Missile Research, Development, and Engineering Center (AMRDEC) is developing a micro-uncooled infrared (IR) capability for small unmanned aerial systems (SUAS). In 2007, AMRDEC procured several uncooled microbolometers for lab and field test evaluations, and static tower tests involving specific target sets confirmed initial modeling and simulation predictions. With these promising results, AMRDEC procured two captive flight test (CFT) vehicles and, in 2008, completed numerous captive flights to capture imagery with the micro-uncooled infrared sensors. Several test configurations were used to build a comprehensive data set. These configurations included variations in look-down angles, fields of view (FOV), environments, altitudes, and target scenarios. Data collected during these field tests is also being used to develop human tracking algorithms and image stabilization software by other AMRDEC personnel. Details of these ongoing efforts will be presented in this paper and will include: 1) onboard digital data recording capabilities; 2) analog data links for visual verification of imagery; 3) sensor packaging and design; which include both infrared and visible cameras; 4) field test and data collection results; 5) future plans; 6) potential applications. Finally, AMRDEC has recently acquired a 17 mu m pitch detector array. The paper will include plans to test both 17 mu m and 25 mu m microbolometer technologies simultaneously in a side-by-side captive flight comparison.
C1 [Pitt, Timothy S.; Wood, Sam B.; Waddle, Caleb E.] USA, Aviat & Missile Res Dev & Engn Ctr, Redstone Arsenal, AL USA.
RP Pitt, TS (reprint author), USA, Aviat & Missile Res Dev & Engn Ctr, Redstone Arsenal, AL USA.
NR 9
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8124-5
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7660
AR 76600I
DI 10.1117/12.855134
PG 10
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BSR52
UT WOS:000285545300015
ER
PT J
AU Verwolf, A
Farwell, SO
Cai, ZT
Smith, P
AF Verwolf, Adrian
Farwell, Sherry O.
Cai, Zhongtao
Smith, Pauline
TI AN IMPROVED COMPACT INTEGRATED ANALYTICAL SWATCH TESTING SYSTEM
SO INSTRUMENTATION SCIENCE & TECHNOLOGY
LA English
DT Article
DE compact integrated system; enhanced automation; swatch testing
ID DIFFUSION
AB A compact swatch testing system has been developed to precisely quantify the permeation and penetration of a chemical weapons agent simulant while reducing the system footprint, improving safety and usability, enhancing automation, and maintaining measurement precision comparable to its predecessor. With the addition of a new test cell design and temperature control mechanism, the improved system demonstrated higher steady-state permeation rates and shorter breakthrough times. In comparison to the earlier prototype, the compact configuration's footprint and volume are reduced substantially, thereby allowing for use inside a 6-foot laboratory hood. A reference device for assessing test cell performance was also developed.
C1 [Verwolf, Adrian; Farwell, Sherry O.; Cai, Zhongtao] Engn Measurement & Certificat Ctr, Rapid City, SD 57701 USA.
[Smith, Pauline] USA, Res Lab, Mat Applicat Branch, Aberdeen Proving Ground, MD USA.
RP Farwell, SO (reprint author), Engn Measurement & Certificat Ctr, 525 Univ Loop,Ste 113, Rapid City, SD 57701 USA.
EM sfarwell@emcclab.com
FU US Army Research Laboratory [DAAD19-02-2-0011]
FX This work was conducted in partnership with the South Dakota School of
Mines and Technology and with financial support from the US Army
Research Laboratory via Cooperative Agreement DAAD19-02-2-0011.
NR 12
TC 2
Z9 2
U1 1
U2 3
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1073-9149
J9 INSTRUM SCI TECHNOL
JI Instrum. Sci. Technol.
PY 2010
VL 38
IS 3
BP 220
EP 233
AR PII 921498901
DI 10.1080/10739141003707758
PG 14
WC Chemistry, Analytical; Instruments & Instrumentation
SC Chemistry; Instruments & Instrumentation
GA 593QI
UT WOS:000277474200003
ER
PT S
AU Tahmoush, D
Silvious, J
AF Tahmoush, Dave
Silvious, Jerry
BE Casasent, DP
Hall, EL
Roning, J
TI Recognizing and Tracking Humans and Vehicles Using Radar
SO INTELLIGENT ROBOTS AND COMPUTER VISION XXVII: ALGORITHMS AND TECHNIQUES
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT 27th Conference on Intelligent Robots and Computer Vision: Algorithms
and Techniques
CY JAN 18-19, 2010
CL San Jose, CA
SP IS & T (Soc Imaging Sci & Technol), SPIE
DE Radar; micro-Doppler; obstacle
ID FEATURE-EXTRACTION; HUMAN GAIT; DOPPLER; MODEL
AB Dynamic obstacles like vehicles and animals can be distinguished from humans using their radar micro-Doppler signature. This allows customizing the robotic path algorithm to avoid highly sensitive and unpredictable obstacles like humans and rapidly moving obstacles like vehicles. We demonstrate the extraction of stride rate and other information associated with gait for enhanced person recognition from radar data. We describe the radar sensors used for the measurements, the algorithms used for the detection, tracking, and classification of people and vehicles, as well as describe some of the features that can be extracted. These features can serve as rudimentary identifying information in a scene with multiple subjects. We measure human subjects in indoor and outdoor clutter backgrounds for identification and gather ground truth using video to validate the radar data.
C1 [Tahmoush, Dave; Silvious, Jerry] USA, Res Lab, Adelphi, MD 20783 USA.
RP Tahmoush, D (reprint author), USA, Res Lab, Adelphi, MD 20783 USA.
NR 39
TC 2
Z9 2
U1 1
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-7932-7
J9 PROC SPIE
PY 2010
VL 7539
AR 753907
DI 10.1117/12.837083
PG 10
WC Computer Science, Artificial Intelligence; Optics
SC Computer Science; Optics
GA BRR36
UT WOS:000283489200005
ER
PT S
AU Theisen, BL
AF Theisen, Bernard L.
BE Casasent, DP
Hall, EL
Roning, J
TI The 17TH Annual Intelligent Ground Vehicle Competition: Intelligent
Robots Built by Intelligent Students
SO INTELLIGENT ROBOTS AND COMPUTER VISION XXVII: ALGORITHMS AND TECHNIQUES
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT 27th Conference on Intelligent Robots and Computer Vision: Algorithms
and Techniques
CY JAN 18-19, 2010
CL San Jose, CA
SP IS & T (Soc Imaging Sci & Technol), SPIE
DE intelligent robots; autonomous systems; ground vehicles; engineering
education; IGVC
AB The Intelligent Ground Vehicle Competition (IGVC) is one of four unmanned systems student competitions that were founded by the Association for Unmanned Vehicle Systems International (AUVSI). The IGVC is a multidisciplinary exercise in product realization that challenges college engineering student teams to integrate advanced control theory, machine vision, vehicular electronics and mobile platform fundamentals to design and build an unmanned ground vehicle. Teams from around the world focus on developing a suite of dual-use technologies to equip their system of the future with intelligent driving capabilities. Over the past 17 years, the competition has challenged undergraduate, graduate and Ph.D. students with real world applications in intelligent transportation systems, the military and manufacturing automation. To date, teams from over 70 universities and colleges have participated. This paper describes some of the applications of the technologies required by this competition and discusses the educational benefits. The primary goal of the IGVC is to advance engineering education in intelligent vehicles and related technologies. The employment and professional networking opportunities created for students and industrial sponsors through a series of technical events over the four-day competition are highlighted. Finally, an assessment of the competition based on participation is presented.
C1 USA, TARDEC, Warren, MI 48397 USA.
RP Theisen, BL (reprint author), USA, TARDEC, 6501 E 11 Mile Rd, Warren, MI 48397 USA.
EM bernard.theisen@us.army.mil
NR 10
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-7932-7
J9 PROC SPIE
PY 2010
VL 7539
AR 753903
DI 10.1117/12.846780
PG 15
WC Computer Science, Artificial Intelligence; Optics
SC Computer Science; Optics
GA BRR36
UT WOS:000283489200001
ER
PT S
AU Sottilare, RA
AF Sottilare, Robert A.
BE Aleven, V
Kay, J
Mostow, J
TI Toward the Development of an Intelligent Tutoring System for Distributed
Team Training through Passive Sensing
SO INTELLIGENT TUTORING SYSTEMS, PART II
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 10th International Conference on Intelligent Tutoring Systems
CY JUN 14-18, 2010
CL Pittsburgh, PA
SP Apangea Learning, Carnegie Learning Inc, EDalytics LLC, Grockit, KAPLAN, Univ Pittsburgh, Learning Res & Dev Ctr, NSF, LearnLab, Carnegie Mellon, Sch Comp Sci, Univ Pittsburgh, Sch Educ
DE team tutoring systems; distributed team training; passive sensing
AB The development of intelligent tutoring systems (ITS) capable of supporting naming experiences lot geographically-distributed team members in shared virtual simulation environment presents considerable challenges Even human tutors face challenges in developing team cohesion, coordinating roles and assessing contributions Just as a human tutor might assess collective performance, a team ITS must be capable of passively assessing the trainees' readiness to learn and evaluating their progress toward team objectives Passive sensing methods offer the opportunity for the ITS to understand the team's cognitive and emotional state without in with the learning process It also helps determine their any interventions needed to optimize performance This article reviews challenges and hypothesizes functions for computer-based distributed team tutors
C1 USA, Army Simulat & Training Technol Ctr, Orlando, FL 32826 USA.
RP Sottilare, RA (reprint author), USA, Army Simulat & Training Technol Ctr, 12423 Res Pkwy, Orlando, FL 32826 USA.
EM robert.sottilare@us.army.mil
OI Sottilare, Robert/0000-0002-5278-2441
NR 3
TC 2
Z9 2
U1 0
U2 2
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-13436-4
J9 LECT NOTES COMPUT SC
PY 2010
VL 6095
BP 411
EP 413
PN Part II
PG 3
WC Computer Science, Artificial Intelligence; Computer Science, Information
Systems; Computer Science, Theory & Methods
SC Computer Science
GA BPZ31
UT WOS:000280420200087
ER
PT S
AU Corron, NJ
Blakely, JN
AF Corron, Ned J.
Blakely, Jonathan N.
BE In, V
Longhini, P
Palacios, A
TI A Matched Filter For Communicating With Chaos
SO INTERNATIONAL CONFERENCE ON APPLICATIONS IN NONLINEAR DYNAMICS (ICAND
2010)
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Conference on Applications in Nonlinear Dynamics
CY SEP 21-24, 2010
CL Lake Louise, CANADA
SP Off Naval Res, Nonlinear Dynam Syst
ID SYSTEMS; SYNCHRONIZATION; NOISE; HYSTERESIS; PERFORMANCE; DYNAMICS;
CIRCUIT
AB In conventional communication systems, a matched filter provides optimal receiver performance in the presence of noise. As such, matched filters are highly desirable, yet they are practical only when a relatively small number of known basis functions are used to represent information. For communications using chaotic waveforms, the unpredictable and nonrepeating nature of chaos suggests the basis functions are uncertain and ever changing, which would preclude the use of a simple matched filter. Consequently, it is widely accepted that the performance of chaos communications lags that of conventional, no chaotic systems. In this paper, we show this assumption is not necessarily true. We describe a simple, low-dimensional chaotic oscillator that admits an exact analytic solution containing a single fixed basis function. The solution is written as the linear convolution of a symbol sequence and the basis function, similar to how conventional communications waveforms are usually represented. Despite the linear nature of the solution, waveform returns sampled at regular switching times are conjugate to a shift map, proving the oscillator is chaotic. A matched filter for the basis function is defined and used to extract symbolic information from the chaotic wave-form. Its performance in additive white Gaussian noise is comparable to that of binary phase-shift keying (BPSK). The oscillator and its matched filter have potential application in Hayes-type chaos communications where a message signal is encoded in the symbolic dynamics via small perturbation control. The discovery of a practical matched filter for chaos finally provides a coherent receiver to complement this elegant encoding scheme.
C1 [Corron, Ned J.; Blakely, Jonathan N.] RDMR WSS, US Army Res Dev & Engn Command, Redstone Arsenal, AL 35898 USA.
RP Corron, NJ (reprint author), RDMR WSS, US Army Res Dev & Engn Command, Redstone Arsenal, AL 35898 USA.
OI Blakely, Jonathan/0000-0002-9772-582X; Corron, Ned/0000-0002-3232-5024
NR 26
TC 1
Z9 1
U1 1
U2 2
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0894-4
J9 AIP CONF PROC
PY 2010
VL 1339
BP 25
EP 35
DI 10.1063/1.3574841
PG 11
WC Physics, Applied
SC Physics
GA BVJ04
UT WOS:000291631600002
ER
PT J
AU Hitt, J
Sugar, T
AF Hitt, Joseph
Sugar, Thomas
GP IEEE
TI Load Carriage Effects on a Robotic Transtibial Prosthesis
SO INTERNATIONAL CONFERENCE ON CONTROL, AUTOMATION AND SYSTEMS (ICCAS 2010)
LA English
DT Proceedings Paper
CT International Conference on Control, Automation and Systems (ICCAS 2010)
CY OCT 27-30, 2010
CL Gyeonggi do, SOUTH KOREA
SP Natl IT Ind Promot Agcy, Korean Federat Sci & Technol Soc, Korea Natl Tourism Org, Hyundai Heavy Ind Co, POSCO, LS Ind Syst Co, Samsung Heavy Ind Co, Autopower Co, Gangneung Wonju Natl Univ
DE Bionics; Biorobotics; Powered Prosthesis; Load Carriage; SPARKy
ID WALKING
AB The purpose of this study was to investigate the kinetic and kinematic effects of load carriage while wearing a robotic transtibial prosthesis. Nine separate tests were conducted with a unilateral transtibial amputee test subject wearing the robotic foot-ankle prosthesis. The subject walked on a treadmill at 1.3 m/s with a back pack weighing 0 kg, 4.5 kg and 9 kg. Direct measurement of the kinematics and kinetics of the robotic prosthesis at varying loads and ankle joint stiffness using embedded sensors is presented. The test data suggest that the coping strategy for load carriage is one of kinetic variance and kinematic invariance for subjects using a powered, computer controlled foot-ankle prosthesis. The finding suggests that modulation of the spring stiffness as a function of load condition may reduce system energy expenditure by 10%.
C1 [Hitt, Joseph] US Mil Acad, Dept Civil & Mech Engn, West Point, NY 10996 USA.
[Sugar, Thomas] Arizona State Univ, Dept Engn, Mesa, AZ USA.
RP Hitt, J (reprint author), US Mil Acad, Dept Civil & Mech Engn, West Point, NY 10996 USA.
EM joseph.hitt@usma.edu; thomas.sugar@asu.edu
NR 11
TC 2
Z9 2
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-89-93215-02-1
PY 2010
BP 139
EP 142
PG 4
WC Automation & Control Systems; Computer Science, Artificial Intelligence;
Engineering, Electrical & Electronic
SC Automation & Control Systems; Computer Science; Engineering
GA BWU79
UT WOS:000294964400030
ER
PT B
AU Wood, RA
Salem, TE
AF Wood, Robert A.
Salem, Thomas E.
GP Mesago PCIM GmbH
TI Characteristics of a 1200 V, 550 A SiC DMOSFET Dual Module
SO INTERNATIONAL EXHIBITION AND CONFERENCE FOR POWER ELECTRONICS,
INTELLIGENT MOTION AND POWER QUALITY 2010 (PCIM EUROPE 2010), VOLS 1 AND
2
LA English
DT Proceedings Paper
CT International Exhibition and Conference for Power Electronics,
Intelligent Motion and Power Quality (PCIM Europe 2010)
CY MAY 04-06, 2010
CL Nuremburg, GERMANY
ID MOSFETS
AB The enhanced material properties of silicon carbide (SiC) offer improved performance capabilities for power electronic devices compared to traditional, silicon based components. Recently, a 1200 V, 50 A, SiC DMOSFET has been developed and its use in a switch has been reported [1-2]. Based on this work, a 1200 V, 550 A, all SiC dual module has been fabricated. This paper reports on the experimental characterization of this advanced dual power module that incorporates eleven SiC DMOSFETs and eleven SiC JBS diodes per switch.
C1 [Wood, Robert A.] US Army Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
[Salem, Thomas E.] US Naval Acad, Annapolis, MD USA.
RP Wood, RA (reprint author), US Army Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
NR 8
TC 0
Z9 0
U1 0
U2 0
PU MESAGO PCIM GMBH
PI STUTTGART
PA ROTEBUEHLSTR 83-85, STUTTGART, 70178, GERMANY
BN 978-1-61738-967-2
PY 2010
BP 280
EP 285
PG 6
WC Engineering, Electrical & Electronic
SC Engineering
GA BG7LD
UT WOS:000391419800046
ER
PT J
AU Templeton, DW
AF Templeton, Douglas W.
TI Topical Section: Ceramics Armor Introduction
SO INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
LA English
DT Editorial Material
C1 USA, TARDEC, Washington, DC 20310 USA.
RP Templeton, DW (reprint author), USA, TARDEC, Washington, DC 20310 USA.
NR 0
TC 0
Z9 0
U1 0
U2 2
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1546-542X
J9 INT J APPL CERAM TEC
JI Int. J. Appl. Ceram. Technol.
PY 2010
VL 7
IS 5
BP 565
EP 565
DI 10.1111/j.1744-7402.2010.02574.x
PG 1
WC Materials Science, Ceramics
SC Materials Science
GA 656GP
UT WOS:000282316500001
ER
PT J
AU LaSalvia, JC
McCauley, JW
AF LaSalvia, Jerry C.
McCauley, James W.
TI Inelastic Deformation Mechanisms and Damage in Structural Ceramics
Subjected to High-Velocity Impact
SO INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
LA English
DT Article
ID DYNAMIC COMPRESSIVE FAILURE; SILICON-CARBIDE TARGETS; INTERFACE DEFEAT;
TUNGSTEN PROJECTILES; BORON-CARBIDE; PENETRATION; TRANSITION; FRACTURE;
INDENTATION; PLASTICITY
AB The inelastic deformation mechanisms and damage features observed in structural ceramics subjected to nonpenetrating, high-velocity impacts are similar to those seen in quasistatic Hertzian indentation, albeit more severe. For impacts on large ceramic bodies (relative to impactor diameter), cone cracking is the primary mechanism in regions of high tensile stresses. In regions of nonhydrostatic compressive stresses, depending on the material characteristics, elasticity, grain-boundary microcracking, or plasticity are the primary mechanisms, and depending on their associated energetics, may be able to compete with the initiation and growth of cone cracks. In this regard, a new model is presented that examines the effect of grain-boundary microcracking on cone cracking through shear-induced dilatancy (i.e., bulking) within the quasiplastic zone that forms just underneath the impact site. Depending on the size of the quasiplastic zone and bulking pressure, it is shown that the bulking phenomenon has the potential to suppress cone cracking. Lastly, examples of other shear-driven inelastic deformation mechanisms are presented.
C1 [LaSalvia, Jerry C.; McCauley, James W.] USA, Res Lab, RDRL WMM E, Aberdeen Proving Ground, MD 21005 USA.
RP LaSalvia, JC (reprint author), USA, Res Lab, RDRL WMM E, Aberdeen Proving Ground, MD 21005 USA.
EM jlasalvi@arl.army.mil
NR 45
TC 15
Z9 15
U1 2
U2 20
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1546-542X
J9 INT J APPL CERAM TEC
JI Int. J. Appl. Ceram. Technol.
PY 2010
VL 7
IS 5
BP 595
EP 605
DI 10.1111/j.1744-7402.2010.02489.x
PG 11
WC Materials Science, Ceramics
SC Materials Science
GA 656GP
UT WOS:000282316500005
ER
PT J
AU Leavy, RB
Brannon, RM
Strack, OE
AF Leavy, R. Brian
Brannon, Rebecca M.
Strack, O. Erik
TI The Use of Sphere Indentation Experiments to Characterize Ceramic Damage
Models
SO INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
LA English
DT Article
ID SILICON-CARBIDE; BORON-CARBIDE; PENETRATION; VELOCITIES; BEHAVIOR; KM/S
AB Sphere impact experiments are used to calibrate and validate ceramic models that include statistical variability and/or scale effects in strength and toughness parameters. These dynamic experiments supplement traditional characterization experiments such as tension, triaxial compression, Brazilian, and plate impact, which are commonly used for ceramic model calibration. The fractured ceramic specimens are analyzed using sectioning, X-ray computed tomography, microscopy, and other techniques. These experimental observations indicate that a predictive material model must incorporate a standard deviation in strength that varies with the nature of the loading. Methods of using the spherical indentation data to calibrate a statistical damage model are presented in which it is assumed that variability in strength is tied to microscale stress concentrations associated with microscale heterogeneity.
C1 [Leavy, R. Brian] USA, Res Lab, Aberdeen, MD 21005 USA.
[Brannon, Rebecca M.] Univ Utah, Salt Lake City, UT 84112 USA.
[Strack, O. Erik] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Leavy, RB (reprint author), USA, Res Lab, Aberdeen, MD 21005 USA.
EM Brian.Leavy@utah.edu
FU United States Department of Energy [DE-ALO4-04AL8500]
FX The authors thank the following individuals for their substantial
contributions to the work presented in this paper: David Bronowski, Bill
Bruchey, Jerry LaSalvia, Moo Lee, Dave MacKenzie, Herb Miller, Mike
Normandia, and John Rowe. Part of this work was performed at the Sandia
National Laboratories. Sandia is a multiprogram laboratory operated by
Sandia Corporation, a Lockheed Martin Company, for the United States
Department of Energy under contract no. DE-ALO4-04AL8500.
NR 53
TC 17
Z9 18
U1 0
U2 11
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1546-542X
J9 INT J APPL CERAM TEC
JI Int. J. Appl. Ceram. Technol.
PY 2010
VL 7
IS 5
BP 606
EP 615
DI 10.1111/j.1744-7402.2010.02487.x
PG 10
WC Materials Science, Ceramics
SC Materials Science
GA 656GP
UT WOS:000282316500006
ER
PT J
AU Nie, X
Chen, WNW
Templeton, DW
AF Nie, Xu
Chen, Weinong W.
Templeton, Douglas W.
TI Dynamic Ring-on-Ring Equibiaxial Flexural Strength of Borosilicate Glass
SO INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
LA English
DT Article
ID HOPKINSON PRESSURE BAR; SODA-LIME GLASS; PULSE-SHAPING TECHNIQUES;
BIAXIAL-FLEXURE; CERAMICS; FRACTURE; FAILURE; FATIGUE; TESTS
AB A novel dynamic ring-on-ring equibiaxial flexural testing technique with single pulse loading capability is established on a modified Kolsky bar. This technique is then utilized to investigate the loading-rate and surface-condition effects on the flexural strength of a borosilicate glass. Quasi-static and dynamic experiments are performed at loading rates ranging from 5 x 10-1 to 5 x 106 MPa/s. It is found that the flexural strength of the borosilicate glass strongly depends on the applied loading rates. HF acid corrosion on the surface promotes the flexural strength to above 1.3 GPa. Fractographic analysis shows that surface modification has changed the type of flaws that govern the flexural strength of glass samples.
C1 [Nie, Xu; Chen, Weinong W.] Purdue Univ, AAE Sch, W Lafayette, IN 47907 USA.
[Nie, Xu; Chen, Weinong W.] Purdue Univ, MSE Sch, W Lafayette, IN 47907 USA.
[Templeton, Douglas W.] USA, TARDEC, Warren, MI 48397 USA.
RP Nie, X (reprint author), Purdue Univ, AAE Sch, W Lafayette, IN 47907 USA.
EM wchen@purdue.edu
FU U.S. Army Research Office [W911-05-1-0218]
FX Partially supported by the U.S. Army Research Office under Grant No.
W911-05-1-0218
NR 29
TC 12
Z9 12
U1 1
U2 7
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1546-542X
J9 INT J APPL CERAM TEC
JI Int. J. Appl. Ceram. Technol.
PY 2010
VL 7
IS 5
BP 616
EP 624
DI 10.1111/j.1744-7402.2010.02508.x
PG 9
WC Materials Science, Ceramics
SC Materials Science
GA 656GP
UT WOS:000282316500007
ER
PT J
AU Wereszczak, AA
Kirkland, TP
Strong, KT
Campbell, J
LaSalvia, JC
Miller, HT
AF Wereszczak, Andrew A.
Kirkland, Timothy P.
Strong, Kevin T., Jr.
Campbell, James
LaSalvia, Jerry C.
Miller, Herbert T.
TI Size-Scaling of Tensile Failure Stress in a Hot-Pressed Silicon Carbide
SO INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
LA English
DT Article
ID BRITTLE MATERIALS; HERTZIAN FRACTURE; COMPRESSION; INDENTER; TILES
AB Quasi-static Weibull strength-size scaling of hot-pressed silicon carbide is described. Two surface conditions (uniaxial ground and uniaxial ground followed by grit blasting) were explored. Strength test coupons sampled effective areas from the very small (4 x 10-3 mm2) to the very large (4 x 104 mm2). Equibiaxial flexure and Hertzian ring crack initiation were used for the strength tests, and characteristic strengths for several different specimen geometries were analyzed as a function of effective area. Characteristic strength was found to substantially increase with decreased effective area for both surface conditions. Weibull moduli of 9.4- and 11.7 well-represented strength-size scaling for the two ground conditions between an effective area range of 10-1 and 4 x 104 mm2. Machining damage was observed to be the dominant flaw type over this range. However, for effective areas < 10-1 mm2, the characteristic strength increased rapidly for both ground surface conditions as the effective area decreased, and one or more of the inherent assumptions behind the classical Weibull strength-size scaling were in violation in this range. The selections of a ceramic strength to account for ballistically induced tile deflection and expanding cavity modeling are considered in context with the measured strength-size scaling. The observed size-scaling is briefly discussed with reference to dynamic strength.
C1 [Wereszczak, Andrew A.; Kirkland, Timothy P.; Strong, Kevin T., Jr.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Campbell, James; LaSalvia, Jerry C.; Miller, Herbert T.] USA, Res Lab, Ceram & Transparent Mat Branch, Aberdeen Proving Ground, MD 21005 USA.
RP Wereszczak, AA (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM wereszczakaa@ornl.gov
RI Wereszczak, Andrew/I-7310-2016
OI Wereszczak, Andrew/0000-0002-8344-092X
FU U.S. Army Research Laboratory (USARL); U.S. Army Tank-Automotive
Research, Development and Engineering Center [DE-AC-00OR22725]; U.S.
Army Research, Development and Engineering Command-Tank-Automotive and
Armaments Command
FX Research sponsored by two sources: Work For Others sponsor U.S. Army
Research Laboratory (USARL) and the U.S. Army Tank-Automotive Research,
Development and Engineering Center, both under contract DE-AC-00OR22725
with UT-Battelle, LLC.; This submission was produced by a contractor of
the U.S. Government under contract DE-AC05-00OR22725 with the U.S.
Department of Energy.; Work performed with support by an appointment to
the Research Participation Program at the USARL administered by the Oak
Ridge Associated Universities through an interagency agreement between
the U.S. Department of Energy and the USARL.; The authors express
sincere appreciation to D. Templeton and F. Rickert of the U.S. Army
Research, Development and Engineering Command-Tank-Automotive and
Armaments Command for sponsoring much of this work. C. Johnson
(GE-retired) is thanked for Weibull distribution discussions. Lastly,
ORNL's P. Becher and H. Wang for reviewing the manuscript and for their
helpful comments.
NR 21
TC 3
Z9 3
U1 2
U2 12
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1546-542X
J9 INT J APPL CERAM TEC
JI Int. J. Appl. Ceram. Technol.
PY 2010
VL 7
IS 5
BP 635
EP 642
DI 10.1111/j.1744-7402.2010.02517.x
PG 8
WC Materials Science, Ceramics
SC Materials Science
GA 656GP
UT WOS:000282316500009
ER
PT J
AU Vargas-Gonzalez, L
Speyer, RF
Campbell, J
AF Vargas-Gonzalez, Lionel
Speyer, Robert F.
Campbell, James
TI Flexural Strength, Fracture Toughness, and Hardness of Silicon Carbide
and Boron Carbide Armor Ceramics
SO INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
LA English
DT Article
ID MECHANICAL-PROPERTIES; PRESSURELESS; ADDITIONS; BEHAVIOR; B4C; PHASE
AB Armor-grade B(4)C and SiC specimens were analyzed for phase assemblage, microstructure, and mechanical properties. SiC-N showed the highest four-point fracture strength, and an similar to 50% higher notched beam fracture toughness than solid-state sintered B(4)C and SiC. This was attributed to preferential crack propagation along a weaker amorphous aluminosilicate grain-boundary interphase, which also attenuated the effect of surface flaws on bending strength. Verco B(4)C showed the highest hardness. That material was phase pure, fully dense, and of finer grain size as compared with pressure-assisted densification (PAD)-B(4)C (hot pressed). Verco SiC showed a hardness equal to (Vickers) or higher than (Knoop) PAD-B(4)C, and a comparatively narrow distribution in measured hardnesses. This was attributed to a fine-grained, fully dense, solid-state sintered microstructure with a fine and well-distributed graphite second phase. Hardness of all specimens decreased with increasing applied load.
C1 [Vargas-Gonzalez, Lionel; Speyer, Robert F.] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA.
[Campbell, James] USA, Res Lab, Aberdeen, MD 21001 USA.
RP Vargas-Gonzalez, L (reprint author), Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA.
EM robert.speyer@mse.gatech.edu
OI Vargas-Gonzalez, Lionel/0000-0001-6500-1686
NR 23
TC 20
Z9 20
U1 4
U2 42
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1546-542X
J9 INT J APPL CERAM TEC
JI Int. J. Appl. Ceram. Technol.
PY 2010
VL 7
IS 5
BP 643
EP 651
DI 10.1111/j.1744-7402.2010.02501.x
PG 9
WC Materials Science, Ceramics
SC Materials Science
GA 656GP
UT WOS:000282316500010
ER
PT J
AU Tan, JG
Zheng, YF
Tang, X
Guo, CY
Li, LP
Song, GX
Zhen, XR
Yuan, D
Kalkstein, AJ
Li, FR
Chen, H
AF Tan, Jianguo
Zheng, Youfei
Tang, Xu
Guo, Changyi
Li, Liping
Song, Guixiang
Zhen, Xinrong
Yuan, Dong
Kalkstein, Adam J.
Li, Furong
Chen, Heng
TI The urban heat island and its impact on heat waves and human health in
Shanghai
SO INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
LA English
DT Article
DE Global warming; Urban heat island; Heat wave; Human health
ID CLIMATE-CHANGE; AIR-POLLUTION; TIME-SERIES; MODEL CONSTRUCTION; WARNING
SYSTEM; ST-LOUIS; MORTALITY; TEMPERATURE; CITIES; CITY
AB With global warming forecast to continue into the foreseeable future, heat waves are very likely to increase in both frequency and intensity. In urban regions, these future heat waves will be exacerbated by the urban heat island effect, and will have the potential to negatively influence the health and welfare of urban residents. In order to investigate the health effects of the urban heat island (UHI) in Shanghai, China, 30 years of meteorological records (1975-2004) were examined for 11 first- and second-order weather stations in and around Shanghai. Additionally, automatic weather observation data recorded in recent years as well as daily all-cause summer mortality counts in 11 urban, suburban, and exurban regions (1998-2004) in Shanghai have been used. The results show that different sites (city center or surroundings) have experienced different degrees of warming as a result of increasing urbanization. In turn, this has resulted in a more extensive urban heat island effect, causing additional hot days and heat waves in urban regions compared to rural locales. An examination of summer mortality rates in and around Shanghai yields heightened heat-related mortality in urban regions, and we conclude that the UHI is directly responsible, acting to worsen the adverse health effects from exposure to extreme thermal conditions.
C1 [Tan, Jianguo; Zhen, Xinrong] Shanghai Urban Environm Meteorol Ctr, Shanghai 200135, Peoples R China.
[Zheng, Youfei] Nanjing Univ Informat Sci & Technol, Minist Educ, Key Lab Meteorol Disaster, Nanjing 210044, Peoples R China.
[Tang, Xu] Shanghai Meteorol Bur, Shanghai 200030, Peoples R China.
[Guo, Changyi; Song, Guixiang; Yuan, Dong] Shanghai Municipal Ctr Dis Control & Prevent, Shanghai 200336, Peoples R China.
[Li, Liping; Li, Furong; Chen, Heng] Shantou Univ, Coll Med, Injury Prevent Res Ctr, Shantou City 515041, Guangdong, Peoples R China.
[Kalkstein, Adam J.] US Mil Acad, Dept Geog & Environm Engn, West Point, NY 10996 USA.
RP Tan, JG (reprint author), Shanghai Urban Environm Meteorol Ctr, 951 Jinxiu Rd, Shanghai 200135, Peoples R China.
EM jianguot@21cn.com
FU Natural Science Foundation of China [30771846]; Jiangsu Key Laboratory
of Meteorological Disaster [KLME05005]; Ministry of Science and
Technology of China [2006BAK13B06]; China Meteorological Administration
[GY200706019]
FX This material is based upon work supported by The Natural Science
Foundation of China ( No. 30771846), Jiangsu Key Laboratory of
Meteorological Disaster ( No. KLME05005), National Scientific and
Technical supporting Programs, Ministry of Science and Technology of
China ( No. 2006BAK13B06), and the Gong-Yi Program of China
Meteorological Administration ( No. GY200706019). Two anonymous
reviewers are thanked for their comments on an earlier version of the
manuscript.
NR 50
TC 117
Z9 131
U1 9
U2 90
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0020-7128
J9 INT J BIOMETEOROL
JI Int. J. Biometeorol.
PD JAN
PY 2010
VL 54
IS 1
BP 75
EP 84
DI 10.1007/s00484-009-0256-x
PG 10
WC Biophysics; Environmental Sciences; Meteorology & Atmospheric Sciences;
Physiology
SC Biophysics; Environmental Sciences & Ecology; Meteorology & Atmospheric
Sciences; Physiology
GA 545PE
UT WOS:000273746000008
PM 19727842
ER
PT J
AU Moore, DF
Teal, P
AF Moore, D. F.
Teal, P.
TI Screening for Fabry disease in Canada following cryptogenic stroke - the
Canadian Fabry Stroke Screening Initiative (CFSSI)
SO INTERNATIONAL JOURNAL OF CLINICAL PHARMACOLOGY AND THERAPEUTICS
LA English
DT Meeting Abstract
C1 [Moore, D. F.] Walter Reed Army Med Ctr, ABNP Neurol & Vasc Neurol, Def & Vet Brain Injury Ctr, Washington, DC 20307 USA.
[Teal, P.] FRCP C Canadian Stroke Consortium, Toronto, ON, Canada.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU DUSTRI-VERLAG DR KARL FEISTLE
PI DEISENHOFEN-MUENCHEN
PA BAHNHOFSTRASSE 9 POSTFACH 49, D-82032 DEISENHOFEN-MUENCHEN, GERMANY
SN 0946-1965
J9 INT J CLIN PHARM TH
JI Int. J. Clin. Pharmacol. Ther.
PY 2010
VL 48
SU 1
BP S63
EP S63
PG 1
WC Pharmacology & Pharmacy
SC Pharmacology & Pharmacy
GA 566CB
UT WOS:000275346500049
ER
PT J
AU Nobel, OBY
Campbell, D
Hannah, ST
Wortinger, B
AF Nobel, Orly Ben-Yoav
Campbell, Donald
Hannah, Sean T.
Wortinger, Brian
TI Soldiers' negotiations in combat areas The effects of role clarity and
concern for members of the local population
SO INTERNATIONAL JOURNAL OF CONFLICT MANAGEMENT
LA English
DT Article
DE Armed forces; Military actions; Negotiating; Public relations; Role
ambiguity; United States of America; Iraq
ID ROLE-CONFLICT; TIME PRESSURE; AMBIGUITY; BEHAVIOR; ACCOUNTABILITY;
CONSTITUENTS; CULTURE; BOSNIA; ISSUES
AB Purpose - The aim of this exploratory study is to assess the impact of role clarity and concern for the other party's goals on soldiers' negotiations with members of the local population within a combat zone.
Design/methodology/approach - Following the Dual Concerns Model it was hypothesized that soldiers experiencing high concern for the needs of their Iraqi counterparts would engage in: higher levels of problem solving behavior; report greater trust in their counterparts; and reach more mutually satisfying agreements under conditions of role clarity relative to role ambiguity. A total of 42 officers and non-commissioned officers serving in Iraq participated in the study.
Findings - The results supported the prediction that role clarity moderates the relationship between concern for the other party's needs and various outcomes of the negotiation process.
Research limitations/implications - The study involved a small convenience sample, cross-sectional design, and a single source of data for all measures. Nonetheless, the results are consistent with other studies examining the theoretical assumptions of the Dual Concern Model and suggest that role clarity may serve as a useful operationalization of high self-concern and high resistance to yielding.
Originality/value - The study advances knowledge about soldiers' ability to negotiate mutually satisfying agreements with members of the local population. It points to the need to combine a policy of collaboration with local civilians with the communication of a clear set of overall mission and specific negotiation goals and objectives.
C1 [Campbell, Donald] US Mil Acad, Dept Behav Sci & Leadership, West Point, NY 10996 USA.
RP Campbell, D (reprint author), US Mil Acad, Dept Behav Sci & Leadership, West Point, NY 10996 USA.
EM ld6829@usma.edu
NR 74
TC 1
Z9 1
U1 1
U2 6
PU EMERALD GROUP PUBLISHING LIMITED
PI BINGLEY
PA HOWARD HOUSE, WAGON LANE, BINGLEY BD16 1WA, W YORKSHIRE, ENGLAND
SN 1044-4068
J9 INT J CONFL MANAGE
JI Int. J. Confl. Manage.
PY 2010
VL 21
IS 2
BP 202
EP 227
DI 10.1108/10444061011037413
PG 26
WC Communication; Management; Political Science
SC Communication; Business & Economics; Government & Law
GA 613GH
UT WOS:000278966900005
ER
PT J
AU Estes, AC
Welch, RW
Ressler, SJ
Dennis, N
Larson, D
Considine, C
Nilsson, T
O'Neill, RJ
O'Brien, J
Lenox, T
AF Estes, Allen C.
Welch, Ronald W.
Ressler, Stephen J.
Dennis, Norman
Larson, Debra
Considine, Carol
Nilsson, Tonya
O'Neill, Robert J.
O'Brien, Jim
Lenox, Thomas
TI Ten Years of ExCEEd: Making a Difference in the Profession
SO INTERNATIONAL JOURNAL OF ENGINEERING EDUCATION
LA English
DT Article
DE teaching workshop; teaching assessment; ExCEEd model; teacher training
ID FACULTY
AB In response to the need for faculty training, the American Society of Civil Engineers developed and funded the ExCEEd (Excellence in Civil Engineering Education) Teaching Workshop, which was offered for the first time in 1999 and celebrated its tenth year during the summer of 2008. For the past decade, 21 ExCEEd Teaching Workshops (ETW) have been held at the United States Military Academy, the University of Arkansas, and Northern Arizona University. ETW has realized 497 graduates from 198 different US and international colleges and universities. This paper summarizes the content of ETW, assesses its effectiveness, highlights changes in the program as a result of these assessments, outlines future directions, and assesses the effect this workshop has had on the quality of civil engineering teaching in the US. The assessment data were obtained from multiple survey instruments conducted during each workshop, surveys taken six months to a year after the workshop, and a ten-year longitudinal survey.
C1 [Estes, Allen C.] Calif Polytech State Univ San Luis Obispo, Dept Architectural Engn, San Luis Obispo, CA 93407 USA.
[Welch, Ronald W.] Univ Texas Tyler, Dept Civil Engn, Tyler, TX 75799 USA.
[Ressler, Stephen J.] US Mil Acad, Dept Civil & Mech Engn, West Point, NY 10996 USA.
[Dennis, Norman] Univ Arkansas, Dept Civil Engn, Fayetteville, AR 72701 USA.
[Larson, Debra] No Arizona Univ, Coll Engn Forestry & Nat Sci, Flagstaff, AZ 86011 USA.
[Considine, Carol] Old Dominion Univ, Norfolk, VA 23529 USA.
[Nilsson, Tonya] San Jose State Univ, San Jose, CA 95192 USA.
[O'Neill, Robert J.] Florida Gulf Coast Univ, Dept Environm & Civil Engn, Ft Myers, FL 33965 USA.
[O'Brien, Jim; Lenox, Thomas] Amer Soc Civil Engineers, Reston, VA 20191 USA.
RP Estes, AC (reprint author), Calif Polytech State Univ San Luis Obispo, Dept Architectural Engn, San Luis Obispo, CA 93407 USA.
EM acestes@calpoly.edu
NR 43
TC 6
Z9 6
U1 0
U2 4
PU TEMPUS PUBLICATIONS
PI DURRUS, BANTRY
PA IJEE , ROSSMORE,, DURRUS, BANTRY, COUNTY CORK 00000, IRELAND
SN 0949-149X
J9 INT J ENG EDUC
JI Int. J. Eng. Educ
PY 2010
VL 26
IS 1
BP 141
EP 154
PG 14
WC Education, Scientific Disciplines; Engineering, Multidisciplinary
SC Education & Educational Research; Engineering
GA 568CF
UT WOS:000275498700015
ER
PT J
AU Clausen, JL
Ketterer, ME
Bednar, AJ
Koenig, MR
AF Clausen, Jay L.
Ketterer, Michael E.
Bednar, Anthony J.
Koenig, Mark R.
TI Challenges and successes in using inductively coupled plasma mass
spectrometry for measurements of tungsten in environmental water and
soil samples
SO INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
LA English
DT Article
DE tungsten; soil; water; ICPMS; small arms ranges
ID IN-GROUND WATER; NEVADA
AB Military small arms ranges in the United States have been used for munitions training with tungsten rounds, which are comprised of powdered tungsten (W) pressed together with polymeric binders. As a result, W has been introduced into surface soils. The environmental and human health effects of W remain open questions. The US Army Corps of Engineers is responsible for environmental monitoring, site assessments, and cleanup of small arms ranges. This work requires routine measurements of tungsten in natural waters and soils. However, the existing sample preparation and analytical procedures were not specifically developed with W in mind for environmental analysis. Our work suggests modification of existing metal sample preparation and analytical procedures are necessary to accurately quantify W in environmental media. Our group has been actively conducting W measurements using inductively coupled plasma mass spectrometry (ICPMS), both with quadrupole and sector field ICPMS systems. We have used heavy rare earth elements and iridium as internal standards. For soils, the great majority of the W from small arms can be dissolved using acid leaching with HNO3-H3PO4 mixtures; more rigorous preparations with fusion or HF digestions can also be used. In ICPMS analysis, the largest challenge involves dealing with the significant carry-over and memory of W in sample introduction systems. This ultimately limits measurement capabilities, particularly at sub-mu g L-1 levels. With careful attention to the sample and standards' matrix constituents, and proper washout time, successful analysis is possible and ICPMS is clearly the preferred technique. A commercially available fluoropolymer sample introduction system exhibits significantly improved memory characteristics.
C1 [Clausen, Jay L.] US Army Corps Engineers, Engineers Res & Dev Ctr, Cold Reg Res & Engn Lab, Hanover, NH 03755 USA.
[Ketterer, Michael E.] No Arizona Univ, Dept Chem & Biochem, Flagstaff, AZ 86011 USA.
[Bednar, Anthony J.] USA, Corps Engineers, Engineer Res & Dev Ctr, Environm Lab, Vicksburg, MS 39180 USA.
[Koenig, Mark R.] USA, Corps Engineers, Concord, MA 01742 USA.
RP Clausen, JL (reprint author), US Army Corps Engineers, Engineers Res & Dev Ctr, Cold Reg Res & Engn Lab, 72 Lyme Rd, Hanover, NH 03755 USA.
EM jay.l.clausen@us.army.mil
NR 14
TC 4
Z9 4
U1 7
U2 24
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0306-7319
J9 INT J ENVIRON AN CH
JI Int. J. Environ. Anal. Chem.
PY 2010
VL 90
IS 10
BP 773
EP 783
AR PII 923708685
DI 10.1080/03067310903267323
PG 11
WC Chemistry, Analytical; Environmental Sciences
SC Chemistry; Environmental Sciences & Ecology
GA 619PM
UT WOS:000279442100002
ER
PT J
AU Clausen, JL
Kaste, J
Ketterer, M
Korte, N
AF Clausen, Jay L.
Kaste, James
Ketterer, Michael
Korte, Nic
TI Sample preparation and digestion considerations for determining metal
deposition at small arms ranges
SO INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
LA English
DT Article
DE soil contamination; tungsten; lead; copper; sample preparation
ID SOILS; CONTAMINATION; SPECTROSCOPY; SPECIATION; TUNGSTEN; WATER; LEAD
AB Determining the metal content of soil collected from small arms training ranges (SARs) is difficult and controversial because the contamination consists of fine particulates abraded from bullets and larger fragments such as intact bullets and spent shell casings. This heterogeneous distribution of materials can be difficult to sample reproducibly and difficult to prepare for analysis. Similar issues are encountered with sampling and analysing solid residues of energetic compounds for which grinding to 75 microns is necessary to achieve excellent precision. Issues to be resolved for SAR metals include the necessity of sieving, the extent of contamination from grinding, and the proper digestion procedure for efficient recovery. The work reported in this manuscript employed field and laboratory sampling approaches developed for energetics and examined a variety of laboratory sample preparation techniques for SAR metals. Application of the sampling approaches used for energetics to metals was straightforward. The US Environmental Protection Agency (USEPA) nitric acid digestion procedure is effective for the recovery of three of the most important SAR metals, copper, lead and zinc, when analysing a 2 g portion of the 2 mm fraction of an unground soil sample. However, sieving the sample ignores a large portion of the total metal load and a total digestion with hydrofluoric acid is necessary to determine the concentration of all naturally-occurring metals in the sample. Finally, the USEPA-approved method for metal analysis is inappropriate for tungsten unless supplemented with phosphoric acid.
C1 [Clausen, Jay L.] USA, Cold Reg Res & Engn Lab, Engn Res & Dev Ctr, Hanover, NH 03755 USA.
[Kaste, James] Coll William & Mary, Dept Geol, Williamsburg, VA 23187 USA.
[Ketterer, Michael] No Arizona Univ, Flagstaff, AZ 86004 USA.
RP Clausen, JL (reprint author), USA, Cold Reg Res & Engn Lab, Engn Res & Dev Ctr, 72 Lyme Rd, Hanover, NH 03755 USA.
EM Jay.L.Clausen@us.army.mil
FU Army Environmental Command
FX The authors would like to acknowledge the Army Environmental Command for
funding that supported this study as well as reviews and helpful
discussions of the paper with Alan Hewitt and Marianne Walsh, US Army
Corps of Engineers, Engineer Research and Development Center, Cold
Regions Research and Engineering Laboratory.
NR 29
TC 1
Z9 1
U1 5
U2 10
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0306-7319
J9 INT J ENVIRON AN CH
JI Int. J. Environ. Anal. Chem.
PY 2010
VL 90
IS 12
BP 903
EP 921
AR PII 926302167
DI 10.1080/03067310903353495
PG 19
WC Chemistry, Analytical; Environmental Sciences
SC Chemistry; Environmental Sciences & Ecology
GA 643TJ
UT WOS:000281321800001
ER
PT J
AU Seidman, JD
Yemelyanova, AV
Khedmati, F
Bidus, MA
Dainty, L
Boice, CR
Cosin, JA
AF Seidman, Jeffrey D.
Yemelyanova, Anna V.
Khedmati, Fatemeh
Bidus, Michael A.
Dainty, Louis
Boice, Charles R.
Cosin, Jonathan A.
TI Prognostic Factors for Stage I Ovarian Carcinoma
SO INTERNATIONAL JOURNAL OF GYNECOLOGICAL PATHOLOGY
LA English
DT Article
DE Ovarian carcinoma; Clear cell carcinoma; Serous carcinoma; Staging;
Prognosis; Tumor rupture; FIGO stage; Grade
ID GYNECOLOGIC-ONCOLOGY-GROUP; ADJUVANT CHEMOTHERAPY; NEOPLASM TRIAL;
INTRAOPERATIVE RUPTURE; CELL CARCINOMAS; CANCER; CISPLATIN;
PATHOGENESIS; MULTICENTER; SURVIVAL
AB Stage I ovarian carcinoma is relatively uncommon, and data oil prognostic factors are conflicting. The clinical and pathologic features of 51 International Federation of Gynecology and Obstetrics stage I ovarian carcinomas were analyzed. There were 22 stage IA, I stage 113, and 28 stage IC cases. The mean follow-Lip was 6.1 years. The 5-year and 10-year disease-specific survival rates for the entire cohort were 92% and 78%, respectively. Among 51 patients, there were 6 tumor deaths, and I patient died of unrelated causes. All patients who died of disease were stage IC. Significant adverse prognostic factors were serous histology [relative risk (RR) 5.4, 95% confidence interval (CI) 1.3-22.0] and stage IC (RR 1.3, 95% Cl 1.1-1.5). Among factors associated with stage IC, only positive washings or ascites affected Survival (RR 9.25, 95% CI 1.9-44.4). The 5-year survival rates for stages IA and IC were 100% and 83%, respectively (P<0.025, log rank test). For comprehensively staged patients, the 5-year survival rate was 96% as compared with 72% for all others (P<0.025, log rank test). Tumor rupture, surface involvement, histologic grade and clear cell histology were not of adverse prognostic significance. Serous histology and positive washings or ascites are adverse prognostic factors in stage I. The prognostic importance of tumor grade, rupture, surface involvement and clear cell histology remains unclear. Patients who are International Federation of Gynecology and Obstetrics stage I on the basis of comprehensive surgical staging have an excellent prognosis.
C1 [Seidman, Jeffrey D.; Yemelyanova, Anna V.; Khedmati, Fatemeh] Washington Hosp Ctr, Dept Pathol, Washington, DC 20010 USA.
[Boice, Charles R.; Cosin, Jonathan A.] Washington Hosp Ctr, Dept Obstet & Gynecol, Washington, DC 20010 USA.
[Bidus, Michael A.; Dainty, Louis] Walter Reed Army Med Ctr, Dept Obstet & Gynecol, Washington, DC 20307 USA.
[Yemelyanova, Anna V.] Johns Hopkins Univ, Sch Med, Dept Pathol, Baltimore, MD 21205 USA.
RP Seidman, JD (reprint author), Washington Hosp Ctr, Dept Pathol, 110 Irving St NW, Washington, DC 20010 USA.
EM jeffrey.d.seidman@medstar.net
NR 39
TC 14
Z9 16
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0277-1691
J9 INT J GYNECOL PATHOL
JI Int. J. Gynecol. Pathol.
PD JAN
PY 2010
VL 29
IS 1
BP 1
EP 7
DI 10.1097/PGP.0b013e3181af2372
PG 7
WC Obstetrics & Gynecology; Pathology
SC Obstetrics & Gynecology; Pathology
GA 536MF
UT WOS:000273047800001
PM 19952945
ER
PT J
AU Jiang, L
Hsu, A
Chu, D
Chen, R
AF Jiang, L.
Hsu, A.
Chu, D.
Chen, R.
TI Ethanol electro-oxidation on Pt/C and PtSn/C catalysts in alkaline and
acid solutions
SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
LA English
DT Article
DE Ethanol electro-oxidation; Alkaline media; pH effect; Platinum; Platinum
tin; Carbon support
ID ANION-EXCHANGE MEMBRANES; SINGLE-CRYSTAL ELECTRODES; FUEL-CELLS; ALCOHOL
OXIDATION; MEDIA; ELECTROCATALYSTS; METHANOL; OXIDE; MECHANISM; SURFACES
AB Carbon supported Pt and PtSn were prepared by a modified polyol method. The electrocatalytic activities and stabilities of the PVC and PtSn/C catalysts towards ethanol electro-oxidation reactions (EORs) were investigated by potentiodynamic and potentiostatic methods in a 0.1 M NaOH solution (or 0.5 M H(2)SO(4)) containing 0.01 M ethanol. On both catalysts, the EOR currents in the alkaline solutions were much higher than those in the acid solutions, and the onset potentials of the EOR in alkaline solutions were less positive than those in acid solutions, indicating that the kinetics of the EOR improve in alkaline solutions. Even though a significant improvement was observed in acid media on PtSn/C, compared with Pt/C, only negligible improvement was observed in alkaline media. The apparent activation energies of the EOR on the PtSn/C catalyst varies from 21 to 33 kJ mol(-1), depending on the potentials, which are slightly lower than the corresponding values on the Pt/C catalyst (25 similar to 42 kJ mol(-1)) under the same conditions. The Tafel slopes are divided into two parts-at low overpotentials, Tafel slopes on both catalysts are close to 120 mV dec(-1), which is in agreement with the proposed mechanism-Temkin-type adsorption for both OH(ad) and ethoxi at low overpotentials; in contrast, at high overpotentials, Tafel slopes on both catalysts are over 300 mV dec(-1) due to the oxide formation on the surface. (C) 2009 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
C1 [Jiang, L.; Hsu, A.; Chen, R.] Indiana Univ Purdue Univ, Richard G Lugar Ctr Renewable Energy, Indianapolis, IN 46202 USA.
[Chu, D.] Army Res Lab, Adelphi, MD 20783 USA.
RP Jiang, L (reprint author), Indiana Univ Purdue Univ, Richard G Lugar Ctr Renewable Energy, Indianapolis, IN 46202 USA.
EM jluhua@iupui.edu; rochen@iupui.edu
FU U.S. Army Research Lab [W911NF-07-2-0036]
FX This work is partially funded by the U.S. Army Research Lab (Grant
Number: W911NF-07-2-0036), We appreciate Prof Dr. R. R. Adzic in
Brookhaven National Laboratory for helpful discussion and valuable
suggestions.
NR 37
TC 103
Z9 104
U1 11
U2 83
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0360-3199
J9 INT J HYDROGEN ENERG
JI Int. J. Hydrog. Energy
PD JAN
PY 2010
VL 35
IS 1
BP 365
EP 372
DI 10.1016/j.ijhydene.2009.10.058
PG 8
WC Chemistry, Physical; Electrochemistry; Energy & Fuels
SC Chemistry; Electrochemistry; Energy & Fuels
GA 549UG
UT WOS:000274079200045
ER
PT J
AU Kesarwala, AH
Belard, A
Dolney, D
Eickstaedt, B
McDonough, J
Tochner, Z
O'Connell, JJ
AF Kesarwala, A. H.
Belard, A.
Dolney, D.
Eickstaedt, B.
McDonough, J.
Tochner, Z.
O'Connell, J. J.
TI Electronic Integration of Radiation Oncology Clinics via Remote Proton
Radiotherapy Telemedicine Solution
SO INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS
LA English
DT Meeting Abstract
CT 52nd Annual Meeting of the American-Society-For-Radiation-Oncology
CY OCT 31-NOV 04, 2010
CL San Diego, CA
SP Amer Soc Radiation Oncol
C1 [Kesarwala, A. H.] Natl Canc Inst, Radiat Oncol Branch, Bethesda, MD USA.
[Belard, A.] Henry M Jackson Fdn Advancement Mil Med, Rockville, MD USA.
[Dolney, D.; Eickstaedt, B.; McDonough, J.; Tochner, Z.] Univ Penn, Philadelphia, PA 19104 USA.
[O'Connell, J. J.] Walter Reed Army Med Ctr, Washington, DC 20307 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0360-3016
J9 INT J RADIAT ONCOL
JI Int. J. Radiat. Oncol. Biol. Phys.
PY 2010
VL 78
IS 3
SU S
BP S491
EP S491
PG 1
WC Oncology; Radiology, Nuclear Medicine & Medical Imaging
SC Oncology; Radiology, Nuclear Medicine & Medical Imaging
GA 740EZ
UT WOS:000288775701142
ER
PT J
AU Weintrob, AC
Gu, W
Qin, J
Robertson, J
Ganeson, A
Crum-Cianflone, NF
Landrum, ML
Wortmann, GW
Foliman, D
Agan, BK
AF Weintrob, A. C.
Gu, W.
Qin, J.
Robertson, J.
Ganeson, A.
Crum-Cianflone, N. F.
Landrum, M. L.
Wortmann, G. W.
Foliman, D.
Agan, B. K.
TI Syphilis co-infection does not affect HIV disease progression
SO INTERNATIONAL JOURNAL OF STD & AIDS
LA English
DT Article
DE HIV; syphilis; AIDS; mortality; cohort
ID CD4 CELL COUNTS; VIRAL LOAD; INFECTED PATIENTS
AB HIV and syphilis are often seen as co-infections since they share a common mode of transmission. During episodes of syphilis, CD4 counts transiently decrease and HIV viral loads increase; however, the effect of syphilis co-infection on HIV disease progression (time to AIDS or death) is unclear. We analysed prospectively collected information on 2239 persons with estimated dates of HIV seroconversion (205 [9.2%] with confirmed syphilis and 66 [2.9%] with probable syphilis) in order to determine the effect of syphilis co-infection on HIV disease progression. In multivariate models censored at highly active antiretroviral therapy (HAART) initiation or last visit, adjusting for CD4 count, age, race, gender, and hepatitis B and C status, syphilis (confirmed + probable) was not associated with increased hazard of AIDS or death (hazard ratio 0.99, 95% CI 0.73-1.33). Treating HAART as a time-varying covariate or limiting the analysis to only confirmed syphilis cases did not significantly alter the results. Despite transient changes in CD4 counts and viral loads, syphilis does not appear to affect HIV disease progression.
C1 [Weintrob, A. C.; Ganeson, A.; Crum-Cianflone, N. F.; Landrum, M. L.; Agan, B. K.] Uniformed Serv Univ Hlth Sci, Infect Dis Clin Res Program, Bethesda, MD USA.
[Weintrob, A. C.; Wortmann, G. W.] Walter Reed Army Med Ctr, Washington, DC 20307 USA.
[Gu, W.] SAIC Frederick, Biostat Res Branch, Frederick, MD USA.
[Qin, J.; Foliman, D.] NIAID, Biostat Res Branch, Bethesda, MD 20892 USA.
[Robertson, J.; Landrum, M. L.] San Antonio Mil Med Ctr, San Antonio, TX USA.
[Crum-Cianflone, N. F.] Naval Med Ctr San Diego, San Diego, CA USA.
[Ganeson, A.] Natl Naval Med Ctr, Bethesda, MD USA.
RP Weintrob, AC (reprint author), 6900 Georgia Ave NW,Bldg 2,Ward 63,Room 6312, Washington, DC 20307 USA.
EM Amy.Weintrob@amedd.army.mil
OI Agan, Brian/0000-0002-5114-1669
FU Uniformed Services University of the Health Sciences (USUHS);
HHS/NIH/NIAID/DCR [HU0001-05-2-0011]; National Cancer Institute,
National Institutes of Health [HHSN261200800001E]; National Institute of
Allergy and Infectious Diseases
FX We would like to thank the patients without whom none of this work would
be possible. We would also like to thank the research coordinators and
support staff who diligently work on the DoD HIV NHS as well as the
members of the IDCRP HIV Working Group. Support for this work was
provided by the Infectious Disease Clinical Research Program (IDCRP) of
the Uniformed Services University of the Health Sciences (USUHS). The
IDCRP is a Department of Defense tri-service programme executed through
USUHS and the Henry M Jackson Foundation for the Advancement of Military
Medicine (HJF), in collaboration with HHS/NIH/NIAID/DCR through
Interagency Agreement HU0001-05-2-0011. The opinions or assertions
contained herein are the private views of the authors, and are not to be
construed as official, or as reflecting the views of the Departments of
the Army, Navy, Air Force or the Department of Defense. The authors have
no commercial or other association that might pose a conflict of
interest.; This project has also been funded in part with federal funds
from the National Cancer Institute, National Institutes of Health, under
Contract No. HHSN261200800001E. The content of this publication does not
necessarily reflect the views or policies of the Department of Health
and Human Services nor does mention of trade names, commercial products
or organizations imply endorsement by the US Government. This research
was supported in part by the National Institute of Allergy and
Infectious Diseases.
NR 8
TC 8
Z9 8
U1 0
U2 3
PU ROYAL SOC MEDICINE PRESS LTD
PI LONDON
PA 1 WIMPOLE STREET, LONDON W1G 0AE, ENGLAND
SN 0956-4624
J9 INT J STD AIDS
JI Int. J. STD AIDS
PD JAN
PY 2010
VL 21
IS 1
BP 57
EP 59
DI 10.1258/ijsa.2009.009164
PG 3
WC Immunology; Infectious Diseases
SC Immunology; Infectious Diseases
GA 549TY
UT WOS:000274078400012
PM 19933204
ER
PT S
AU Moore, S
AF Moore, Sean
BE Bentley, J
Gupta, A
Youngworth, RN
TI Anamorphic Eyepiece for Increased Field of View
SO INTERNATIONAL OPTICAL DESIGN CONFERENCE 2010
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on International Optical Design
CY JUN 13-17, 2010
CL Jackson Hole, WY
SP Opt Soc Amer (OSA), SPIE, CDGM Glass Co, Univ Arizona, Coll Opt Sci, CREOLE, Coll Opt & Photon, Univ Cent Florida, Inst Opt, Univ Rochester, Opt Res Assoc, Schott N Amer Inc, OSA Fdn
AB An innovative design for an anamorphic eyepiece is described, which uses a microlens array with complicated surface features used in conjunction with a modified microdisplay to provide a high resolution image with a panoramic field of view.
C1 USA, RDECOM, CERDEC, Night Vis & Elect Sensors Directorate, Ft Belvoir, VA 22060 USA.
RP Moore, S (reprint author), USA, RDECOM, CERDEC, Night Vis & Elect Sensors Directorate, Ft Belvoir, VA 22060 USA.
NR 2
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-082-8
J9 PROC SPIE
PY 2010
VL 7652
AR 76520F
DI 10.1117/12.868953
PG 5
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BSU93
UT WOS:000285843900015
ER
PT S
AU Vizgaitis, JN
AF Vizgaitis, Jay N.
BE Bentley, J
Gupta, A
Youngworth, RN
TI Optical concepts for dual band infrared continuous zoom lenses
SO INTERNATIONAL OPTICAL DESIGN CONFERENCE 2010
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on International Optical Design
CY JUN 13-17, 2010
CL Jackson Hole, WY
SP Opt Soc Amer (OSA), SPIE, CDGM Glass Co, Univ Arizona, Coll Opt Sci, CREOLE, Coll Opt & Photon, Univ Cent Florida, Inst Opt, Univ Rochester, Opt Res Assoc, Schott N Amer Inc, OSA Fdn
DE optics; infrared; dual band; LWIR; MWIR; continuous zoom
ID SYSTEMS
AB Dual band focal plane arrays enable the simultaneous imaging of the MWIR and LWIR onto the same detector. Each spectral band is read out independently providing a separable MWIR and LWIR image. The development of this technology has necessitated the further development of dual band optics. Although reflective solutions simplify the need for color correction, multiple field of view reflective optics do not package nearly as well as refractive or catadioptric solutions. Dual band optical systems require that both bands focus at the same image plane at the same time. The challenge lies with the very broad spectral band of 3.5 - 11.0 microns, the different partial dispersions between the MWIR and LWIR, and the need to minimize the number of lenses to maximize transmission. This paper looks at the development of refractive and catadioptric concepts for designing continuous zoom lenses for dual band detectors.
C1 USA, RDECOM, CERDEC, Night Vis & Elect Sensors Directorate, Ft Belvoir, VA 22060 USA.
RP Vizgaitis, JN (reprint author), USA, RDECOM, CERDEC, Night Vis & Elect Sensors Directorate, Ft Belvoir, VA 22060 USA.
NR 6
TC 2
Z9 2
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-082-8
J9 PROC SPIE
PY 2010
VL 7652
AR 76522E
DI 10.1117/12.871352
PG 8
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BSU93
UT WOS:000285843900086
ER
PT S
AU Boc, SJ
Burg, EC
AF Boc, S. J.
Burg, E. C.
BE Favro, S
Brebbia, CA
TI Innovative shore protection for island communities
SO ISLAND SUSTAINABILITY
SE WIT Transactions on Ecology and the Environment
LA English
DT Proceedings Paper
CT 1st International Conference on Island Sustainability
CY 2010
CL Island Brac, CROATIA
SP Wexxex Inst Technol, Hydrog Inst Republic Croatia, WIT Transact Ecol & Environm
DE reefs; artificial reefs; shore protection; innovative shore protection;
plastic traffic barriers
AB The National Erosion Control Development and Demonstration Program (Section 227) was authorized by the Water Resource and Development Act of 1996 (Public Law 104-303, 110 stat. 3658, dated October 12, 1996) with the goal of fostering development of innovative and non-traditional methods of shoreline erosion control Sacred Falls State Park on the island of Oahu, Hawaii, was selected as one of the demonstration sites to combat erosion along a section of shoreline that is threatening to encroach upon the state highway. The innovation in shore protection at the Sacred Falls site was chosen to be an offshore reef structure that could be constructed at a remote site with manpower utilizing off the shelf materials and without the use of heavy equipment. Various artificial reef shapes and materials, such as vertical lengths of high-density polyethylene (HDPE) 0.6 m (24 in) pipe, traffic barriers, and large storage units, were considered and tested in an undistorted linear scale of 1:16 (model:prototype) physical model. Modeling efforts focused on determining barrier arrangements best suited to reduce wave heights leeward of the structure. As a result of this 3-D physical model study, and due to their off the shelf nature, the YODOCK traffic barrier in a three pack was found to be a viable option for the conditions at the site. This low cost and effective erosion reduction technology has applicability in emergency and short term situations in shallow water island environments to protect infrastructure.
C1 [Boc, S. J.; Burg, E. C.] USA, Corps Engineers, Engn Res & Dev Ctr, Coastal & Hydraul Lab, Washington, DC USA.
RP Boc, SJ (reprint author), USA, Corps Engineers, Engn Res & Dev Ctr, Coastal & Hydraul Lab, Washington, DC USA.
NR 1
TC 0
Z9 0
U1 0
U2 1
PU WIT PRESS
PI SOUTHAMPTON
PA ASHURST LODGE, SOUTHAMPTON SO40 7AA, ASHURST, ENGLAND
SN 1743-3541
BN 978-1-84564-434-5
J9 WIT TRANS ECOL ENVIR
PY 2010
VL 130
BP 209
EP 220
DI 10.2495/ISLANDS100181
PG 12
WC Ecology; Environmental Sciences
SC Environmental Sciences & Ecology
GA BQK06
UT WOS:000281197700018
ER
PT B
AU Catignani, S
AF Catignani, Sergio
BE Jones, C
Catignani, S
TI Israeli counter-insurgency strategy and the quest for security in the
Israeli-Lebanese conflict arena
SO ISRAEL AND HIZBOLLAH: AN ASYMMETRIC CONFLICT IN HISTORICAL AND
COMPARATIVE PERSPECTIVE
SE Middle Eastern Military Studies
LA English
DT Article; Book Chapter
C1 [Catignani, Sergio] Univ Sussex, Dept Int Relat, Brighton BN1 9RH, E Sussex, England.
[Catignani, Sergio] USA, Brigade Combat Team Airborne 4, Infantry Div 25, Washington, DC USA.
RP Catignani, S (reprint author), Univ Sussex, Dept Int Relat, Brighton BN1 9RH, E Sussex, England.
NR 65
TC 0
Z9 0
U1 0
U2 0
PU ROUTLEDGE
PI LONDON
PA 11 NEW FETTER LANE, LONDON EC4P 4EE, ENGLAND
BN 978-0-203-86552-1
J9 MIDDLE E MIL STUD
PY 2010
BP 67
EP +
PG 27
WC History; Political Science
SC History; Government & Law
GA BNA63
UT WOS:000274030800006
ER
PT B
AU Catignani, S
AF Catignani, Sergio
BE Jones, C
Catignani, S
TI Israel and Hizbollah An asymmetric conflict in historical and
comparative perspective Conclusion
SO ISRAEL AND HIZBOLLAH: AN ASYMMETRIC CONFLICT IN HISTORICAL AND
COMPARATIVE PERSPECTIVE
SE Middle Eastern Military Studies
LA English
DT Editorial Material; Book Chapter
C1 [Catignani, Sergio] Univ Sussex, Dept Int Relat, Brighton BN1 9RH, E Sussex, England.
[Catignani, Sergio] USA, Brigade Combat Team Airborne 4, Infantry Div 25, Washington, DC USA.
RP Catignani, S (reprint author), Univ Sussex, Dept Int Relat, Brighton BN1 9RH, E Sussex, England.
NR 4
TC 0
Z9 0
U1 0
U2 0
PU ROUTLEDGE
PI LONDON
PA 11 NEW FETTER LANE, LONDON EC4P 4EE, ENGLAND
BN 978-0-203-86552-1
J9 MIDDLE E MIL STUD
PY 2010
BP 163
EP +
PG 7
WC History; Political Science
SC History; Government & Law
GA BNA63
UT WOS:000274030800011
ER
PT J
AU Leonhard, RR
Buchanan, TH
Hillman, JL
Nolen, JM
Galpin, TJ
AF Leonhard, Robert R.
Buchanan, Thomas H.
Hillman, James L.
Nolen, John M.
Galpin, Timothy J.
TI A Concept for Command and Control
SO JOHNS HOPKINS APL TECHNICAL DIGEST
LA English
DT Article
AB A concept for command and control (C2) is an effort to envision the future operational environment accurately and develop general requirements for C2. It represents an attempt to break with Cold War and Industrial Age paradigms and instead meet the future on its own terms. The writers of this article strive to find the balance between developing technology on the one hand and the essential humanity of conflict on the other. Above all, they call for flexibility, because the future operational environment will offer myriad, diverse challenges and conditions. The goal is a future C2 system of systems that facilitates strategic, operational, and tactical success.
C1 [Buchanan, Thomas H.] Johns Hopkins Univ, Whiting Sch Engn, Baltimore, MD 21218 USA.
[Nolen, John M.] USA, Washington, DC USA.
EM robert.leonhard@jhuapl.edu
NR 19
TC 0
Z9 0
U1 0
U2 0
PU JOHNS HOPKINS UNIV
PI LAUREL
PA APPLIED PHYSICS LABORATORY ATTN: TECHNICAL DIGEST JOHN HOPKINS RD, BLDG
1W-131, LAUREL, MD 20723-6099 USA
SN 0270-5214
J9 J HOPKINS APL TECH D
JI Johns Hopkins APL Tech. Dig.
PY 2010
VL 29
IS 2
BP 157
EP 170
PG 14
WC Engineering, Multidisciplinary
SC Engineering
GA 669XU
UT WOS:000283384300007
ER
PT J
AU LaSalvia, JC
Campbell, J
Swab, JJ
McCauley, JW
AF LaSalvia, J. C.
Campbell, J.
Swab, J. J.
McCauley, J. W.
TI Beyond Hardness: Ceramics and Ceramic-Based Composites for Protection
SO JOM
LA English
DT Article
ID TUNGSTEN LONG RODS; BORON-CARBIDE; IMPACT VELOCITIES; SILICON-CARBIDE;
LAYERED CERAMICS; INTERFACE DEFEAT; GRAIN-BOUNDARY; PENETRATION;
FAILURE; TOUGHNESS
AB Because of their lightweight and high hardness, ceramics have been successfully used in protection technologies for over 40 Years. The high hardness of a ceramic enables it to break, fragment, and deform impacting projectiles. This paper deals with a number of issues connected to the application of ceramics to ballistic protection, including ceramic hardness, inelastic deformation mechanisms, basic ballistic phenomenology and experimentation, ceramic damage due to ballistic impact, performance/failure maps based upon specific damage/failure mechanisms, and what possible future types of ceramics the suppression of these damage failure mechanisms guide us to.
C1 [LaSalvia, J. C.; Campbell, J.; Swab, J. J.; McCauley, J. W.] USA, Res Lab, RDRL WMM D, Aberdeen, MD 21005 USA.
RP LaSalvia, JC (reprint author), USA, Res Lab, RDRL WMM D, Aberdeen, MD 21005 USA.
EM jlasalvi@arl.army.mil
NR 52
TC 15
Z9 15
U1 2
U2 22
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1047-4838
J9 JOM-US
JI JOM
PD JAN
PY 2010
VL 62
IS 1
BP 16
EP 23
PG 8
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering; Mineralogy; Mining & Mineral Processing
SC Materials Science; Metallurgy & Metallurgical Engineering; Mineralogy;
Mining & Mineral Processing
GA 542ZJ
UT WOS:000273538000004
ER
PT J
AU Grier, T
Knapik, JJ
Canada, S
Canham-Chervak, M
Jones, BH
AF Grier, Tyson
Knapik, Joseph J.
Canada, Sara
Canham-Chervak, Michelle
Jones, Bruce H.
TI Tobacco Use Prevalence and Factors Associated with Tobacco Use in New US
Army Personnel
SO JOURNAL OF ADDICTIVE DISEASES
LA English
DT Article
DE Ordnance school; injury; illness; basic combat training; ethnicity;
cigarettes; army; military
ID SMOKELESS TOBACCO; CIGARETTE-SMOKING; UNITED-STATES; MILITARY PERSONNEL;
BASIC TRAINEES; POPULATION; GENDER; ADULTS; ADOLESCENTS; PREDICTORS
AB This study examined the prevalence of tobacco use and factors associated with pre-military service cigarette and smokeless tobacco use. From January 2000 to December 2006, military students arriving for Advanced Individual Training at the U.S. Army Ordnance School completed a questionnaire that asked about their use of tobacco products. The prevalence of smokeless tobacco use from 2000 to 2006 for women generally decreased, as did the number of cigarettes smoked per day by men. For men and women, factors associated with cigarette use included younger age, Caucasian race, and use of smokeless tobacco. Factors associated with smokeless tobacco use among men included younger age, Caucasian race, and cigarette use. For women, cigarette use was the only factor associated with smokeless tobacco use. The identified factors in this study could be used to establish strategies in the future to reduce tobacco use in the military.
C1 [Grier, Tyson; Knapik, Joseph J.; Canada, Sara; Canham-Chervak, Michelle; Jones, Bruce H.] USA, Publ Hlth Command, Directorate Epidemiol & Dis Surveillance, Aberdeen Proving Ground, MD 21010 USA.
RP Grier, T (reprint author), USA, Publ Hlth Command, Directorate Epidemiol & Dis Surveillance, 5158 Blackhawk Rd, Aberdeen Proving Ground, MD 21010 USA.
EM Tyson.Grier@us.army.mil
NR 41
TC 3
Z9 3
U1 0
U2 1
PU HAWORTH PRESS INC
PI BINGHAMTON
PA 10 ALICE ST, BINGHAMTON, NY 13904-1580 USA
SN 1055-0887
J9 J ADDICT DIS
JI J. Addict. Dis.
PY 2010
VL 29
IS 3
BP 284
EP 293
AR PII 924379074
DI 10.1080/10550887.2010.489445
PG 10
WC Substance Abuse
SC Substance Abuse
GA 626JY
UT WOS:000279963500004
PM 20635278
ER
PT J
AU Long, LN
Kelley, TD
AF Long, Lyle N.
Kelley, Troy D.
TI Review of Consciousness and the Possibility of Conscious Robots
SO JOURNAL OF AEROSPACE COMPUTING INFORMATION AND COMMUNICATION
LA English
DT Article
ID INTELLIGENCE; MODELS; BRAIN; MIND
AB This paper discusses the psychological, philosophical, and neurological definitions of consciousness and the prospects for the development of conscious machines or robots in the foreseeable future. Various definitions of consciousness are introduced and discussed within the different fields mentioned. A conscious machine or robot may be within the realm of engineering possibilities if current technological developments, especially Moore's law, continue at their current pace. Given the complexity of cognition and consciousness a hybrid parallel architecture with significant input/output appears to offer the best solution for the implementation of a complex system of systems which functionally approximates a human mind. Ideally, this architecture would include traditional symbolic representations as well as distributed representations which approximate the nonlinear dynamics seen in the human brain.
C1 [Long, Lyle N.] Penn State Univ, University Pk, PA 16802 USA.
[Kelley, Troy D.] USA, Res Lab, Aberdeen, MD 20783 USA.
RP Long, LN (reprint author), Penn State Univ, University Pk, PA 16802 USA.
EM lnl@psu.edu
FU California Institute of Technology; Office of Naval Research
[N00014-05-1-0844]; U.S. Army Research Laboratory [TCN 07-305]
FX Lyle N. Long gratefully acknowledges support as a Moore Distinguished
Scholar (2007-2008) at the California Institute of Technology, support
from the Office of Naval Research (Grant No. N00014-05-1-0844), and
support from the U.S. Army Research Laboratory (Contract No. TCN
07-305). We also acknowledge the valuable comments from Victoria
Braithwaite and Scott Hanford. And finally, we would like to thank the
reviewers for their insightful comments.
NR 78
TC 1
Z9 1
U1 1
U2 12
PU AMER INST AERONAUT ASTRONAUT
PI RESTON
PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091-4344 USA
SN 1940-3151
J9 J AEROS COMP INF COM
JI J. Aerosp. Comput. Inf. Commun.
PY 2010
VL 7
IS 2
BP 68
EP 84
DI 10.2514/1.46188
PG 17
WC Engineering, Aerospace
SC Engineering
GA 563KT
UT WOS:000275131600002
ER
PT J
AU Tomasino, SF
Rastogi, VK
Wallace, L
Smith, LS
Hamilton, MA
Pines, RM
AF Tomasino, Stephen F.
Rastogi, Vipin K.
Wallace, Lalena
Smith, Lisa S.
Hamilton, Martin A.
Pines, Rebecca M.
TI Use of Alternative Carrier Materials in AOAC Official Method(SM)
2008.05, Efficacy of Liquid Sporicides Against Spores of Bacillus
subtilis on a Hard, Nonporous Surface, Quantitative Three-Step Method
SO JOURNAL OF AOAC INTERNATIONAL
LA English
DT Article
AB The quantitative Three-Step Method (TSM) for testing the efficacy of liquid sporicides against spores of Bacillus subtilis on a hard, nonporous surface lass) was adopted as AOAC Official Method(SM) 2008.05 in May 2008. The TSM uses 5 x 5 x 1 mm coupons (carriers) upon which spores have been inoculated and which are introduced into liquid sporicidal agent contained in a microcentrifulge tube. Following exposure of inoculated carriers and neutralization, spores are removed from carriers in three fractions (gentle washing, fraction A; sonication, fraction 13; and gentle agitation, fraction C). Liquid from each fraction is serially diluted and plated on a recovery medium for spore enumeration. The counts are summed over the three fractions to provide the density (viable spores per carrier), which is log(10)-transformed to arrive at the log density. The log reduction is calculated by subtracting the mean log density for treated carriers from the mean log density for control carriers. This paper presents a single-laboratory investigation conducted to evaluate the applicability of using two porous carrier materials (ceramic the and untreated pine wood) and one alternative nonporous material (stainless steel). Glass carriers were included in the study as the reference material. Inoculated carriers were evaluated against three commercially available liquid sporicides (sodium hypochlorite, a combination of peracetic acid and hydrogen peroxide, and glutaraldehyde), each at two levels of presumed efficacy (medium and high) to provide data for assessing the responsiveness of the TSM. Three coupons of each material were evaluated across three replications at each level; three replications of a control were required. Even though all carriers were inoculated with approximately the same number of spores, the observed counts of recovered spores were consistently higher for the nonporous carriers. For control carriers, the mean log densities for the four materials ranged from 6.63 for wood to 7.14 for steel. The pairwise differences between mean log densities, except for glass minus steel, were statistically significant (P < 0.001). The repeatability standard deviations (S-r) for the mean control log density per test were similar for the four materials, ranging from 0.08 for wood to 0.13 for tile. Spore recovery from the carrier materials ranged from approximately 20 to 70%: 20% (pine wood), 40% (ceramic tile), 55% (glass), and 70% (steel). Although the percent spore recovery from pine wood was significantly lower than that from other materials, the performance data indicate that the TSM provides a repeatable and responsive test for determining the efficacy of liquid sporicides on both porous and nonporous materials.
C1 [Tomasino, Stephen F.; Pines, Rebecca M.] US EPA, Off Pesticide Programs, Microbiol Lab Branch, Ctr Environm Sci, Ft George G Meade, MD 20755 USA.
[Rastogi, Vipin K.; Wallace, Lalena; Smith, Lisa S.] USA, BioDefense Team, R&T Directorate, Edgewood Chem Biol Ctr, Aberdeen Proving Ground, MD 21010 USA.
[Hamilton, Martin A.] Big Sky Stat Analysts LLC, Bozeman, MT 59715 USA.
RP Tomasino, SF (reprint author), US EPA, Off Pesticide Programs, Microbiol Lab Branch, Ctr Environm Sci, Ft George G Meade, MD 20755 USA.
EM Tomasino.Stephen@epamail.epa.gov
RI Wallace, Lance/K-7264-2013
NR 5
TC 7
Z9 7
U1 0
U2 1
PU AOAC INT
PI GAITHERSBURG
PA 481 N FREDRICK AVE, STE 500, GAITHERSBURG, MD 20877-2504 USA
SN 1060-3271
J9 J AOAC INT
JI J. AOAC Int.
PD JAN-FEB
PY 2010
VL 93
IS 1
BP 259
EP 276
PG 18
WC Chemistry, Analytical; Food Science & Technology
SC Chemistry; Food Science & Technology
GA 563AD
UT WOS:000275096600032
PM 20334188
ER
PT J
AU Clayton, JD
AF Clayton, J. D.
TI Modeling nonlinear electromechanical behavior of shocked silicon carbide
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
DE brittle fracture; ceramics; compressive strength; dislocation loops;
edge dislocations; elastic constants; electrostriction; high-pressure
effects; high-temperature effects; piezoelectricity; point defects;
silicon compounds; thermal expansion; thermoelasticity; wide band gap
semiconductors; yield strength
ID X-CUT QUARTZ; SIC SINGLE-CRYSTALS; THERMAL-CONDUCTIVITY;
ELASTIC-CONSTANTS; HIGH-TEMPERATURE; HIGH-PRESSURE; INELASTIC
DEFORMATION; PIEZOELECTRIC CURRENT; BRILLOUIN-SCATTERING; WAVE
COMPRESSION
AB A model is developed for anisotropic ceramic crystals undergoing potentially large deformations that can occur under significant pressures or high temperatures. The model is applied to describe silicon carbide (SiC), with a focus on alpha-SiC, specifically hexagonal polytype 6H. Incorporated in the description are nonlinear anisotropic thermoelasticity, electrostriction, and piezoelectricity. The response of single crystals of alpha-SiC of various orientations subjected to one-dimensional shock loading is modeled for open- and short-circuit boundary conditions. The influences of elastic and electromechanical nonlinearity and anisotropy on the response to impact are quantified. For elastic axial compressive strains less than 0.1, piezoelectricity, electrostriction, and thermal expansion have a negligible influence on the mechanical (stress) response, but the influences of nonlinear elasticity (third-order elastic constants) and anisotropy are not insignificant. The model is extended to incorporate inelastic deformation and lattice defects. Addressed are Shockley partial dislocations on the basal plane and edge dislocation loops on the prism plane, dilatation from point defects and elastic fields of dislocation lines, and cleavage fracture. The results suggest that electric current generated in shock-loaded alpha-SiC crystals of certain orientations could affect the dislocation mobility and hence the yield strength at high pressure.
C1 USA, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
RP Clayton, JD (reprint author), USA, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
EM jclayton@arl.army.mil
RI Clayton, John/C-7760-2009
NR 93
TC 22
Z9 22
U1 0
U2 19
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 JAN 1
PY 2010
VL 107
IS 1
AR 013520
DI 10.1063/1.3277030
PG 18
WC Physics, Applied
SC Physics
GA 544WF
UT WOS:000273689600035
ER
PT J
AU Glomski, LM
Netherland, MD
AF Glomski, Leeann M.
Netherland, M. D.
TI Response of Eurasian and Hybrid Watermilfoil to Low Use Rates and
Extended Exposures of 2,4-D and Triclopyr
SO JOURNAL OF AQUATIC PLANT MANAGEMENT
LA English
DT Article
DE aquatic herbicides; chemical control; Myriophyllum spicatum;
Myriophyllum spicatum x Myriophyllum sibiricum
ID EFFICACY
AB Eurasian watermilfoil (Myriophyllum spicatum L.) and hybrid watermilfoil (Myriophyllum spicatum x M. sibiricum) are invasive submersed plants that coexist in the Great Lakes and Pacific Northwest regions. The auxin-mimic herbicides triclopyr (3,5,6-trichloro-2-pyridinyloxyacetic acid) and 2,4-D (2,4-dichlorophenoxy acetic acid) are commonly used to control these species at recommended use rates of 1.5 to 2.5 mg L(-1) and 2.0 to 4.0 mg L(-1), respectively. Recent field data suggest that following some early season applications, control of watermilfoil may be related to extended exposures to low concentrations of these herbicides. Two greenhouse studies were conducted to determine the efficacy of lower concentrations and extended exposures of 2,4-D and triclopyr on both Eurasian and hybrid watermilfoil. Concentrations evaluated included 0, 25, 70, 100 and 250 mu g L(-1) 2,4-D amine or triclopyr. At 7 weeks after treatment, Eurasian watermilfoil biomass was significantly reduced with all rates of 2,4-D and triclopyr in both studies. Triclopyr at rates of 70 to 250 mu g L(-1) controlled hybrid watermilfoil by 88 to 100% in study 1, while all rates of triclopyr resulted in 100% control of hybrid watermilfoil in study 2. The 2,4-D treatments of 25 to 100 mu g L were not different from the untreated control, whereas the 250 mu g L(-1) treatment resulted in a 95% biomass reduction for hybrid milfoil in study 1. In study 2, 2,4-D at 70 mu g L(-1) and higher controlled hybrid watermilfoil by 93 to 100%. Results from these studies indicate that low rates and extended exposures of both triclopyr and 2,4-D can be effective at controlling both Eurasian and hybrid watermilfoil; however, different hybrid watermilfoil accessions may respond differently to low concentrations of the auxin-mimic herbicides. The ability to utilize low concentrations of these compounds in areas with limited water exchange may represent a cost-effective, selective, and large-scale treatment strategy not fully utilized today.
C1 [Glomski, Leeann M.] USA, Engineer Res & Dev Ctr, Environm Lab, Lewisville, TX 75057 USA.
[Netherland, M. D.] USA, Engineer Res & Dev Ctr, Ctr Aquat & Invas Plants, Gainesville, FL 32653 USA.
RP Glomski, LM (reprint author), USA, Engineer Res & Dev Ctr, Environm Lab, 201 E Jones St, Lewisville, TX 75057 USA.
EM LeeAnn.M.Glom-ski@usace.army.mil
NR 15
TC 10
Z9 10
U1 5
U2 22
PU AQUATIC PLANT MANAGEMENT SOC, INC
PI VICKSBURG
PA PO BOX 821265, VICKSBURG, MS 39182 USA
SN 0146-6623
J9 J AQUAT PLANT MANAGE
JI J. Aquat. Plant Manage.
PD JAN
PY 2010
VL 48
BP 12
EP 14
PG 3
WC Plant Sciences; Marine & Freshwater Biology
SC Plant Sciences; Marine & Freshwater Biology
GA 767DG
UT WOS:000290834900003
ER
PT J
AU Poovey, AG
Getsinger, KD
AF Poovey, Angela G.
Getsinger, K. D.
TI Comparative Response of Monoecious and Dioecious Hydrilla to Endothall
SO JOURNAL OF AQUATIC PLANT MANAGEMENT
LA English
DT Article
DE aquatic herbicide; chemical control; shoot fragment; submersed aquatic
plant; subterranean turion; tuber
ID VERTICILLATA LF ROYLE; NORTH-CAROLINA; TURIONS; TUBERS; WATERMILFOIL;
PHOTOPERIODS; MANAGEMENT; BIOTYPES
AB Hydrilla (Hydrilla verticillata Royle) is an aggressive submersed weed that has invaded many United States water-bodies. While both the monoecious and dioecious biotypes are present in the United States, monoecious populations have continued to spread along the eastern seaboard and in the Great Lakes Region. There is limited documentation of this biotype's response to herbicides; therefore, we conducted two laboratory studies to compare the efficacy of endothall against monoecious and dioecious hydrilla under various concentrations and exposure times. In the first experiment, plants were propagated from shoot fragments. In the second experiment, plants were propagated from subterranean turions (tubers). Results showed that endothall is efficacious against both monoecious and dioecious hydrilla, reducing biomass by >85% with concentrations of 2 mg ai L(-1) coupled with exposure times of 48 h for dioecious and 72 h for monoecious plants grown from shoot fragments. Higher concentrations (4 mg ai L(-1)) or extended exposure times (96 h) were required to control hydrilla grown from tubers. Treatment of newly sprouted monoecious tubers may be an effective application strategy because most monoecious tubers sprout during spring and summer. Endothall efficacy against monoecious and dioecious hydrilla grown from tubers requires further study.
C1 [Poovey, Angela G.] USA, Engineer Res & Dev Ctr, Vicksburg, MS 39180 USA.
RP Poovey, AG (reprint author), USA, Engineer Res & Dev Ctr, 3909 Halls Ferry Rd, Vicksburg, MS 39180 USA.
EM Angela.G.Poovey@erdc.usace.army.mil
NR 37
TC 4
Z9 4
U1 2
U2 12
PU AQUATIC PLANT MANAGEMENT SOC, INC
PI VICKSBURG
PA PO BOX 821265, VICKSBURG, MS 39182 USA
SN 0146-6623
J9 J AQUAT PLANT MANAGE
JI J. Aquat. Plant Manage.
PD JAN
PY 2010
VL 48
BP 15
EP 20
PG 6
WC Plant Sciences; Marine & Freshwater Biology
SC Plant Sciences; Marine & Freshwater Biology
GA 767DG
UT WOS:000290834900004
ER
PT J
AU Mudge, CR
Haller, WT
Netherland, MD
Kowalsky, JK
AF Mudge, Christopher R.
Haller, W. T.
Netherland, M. D.
Kowalsky, J. K.
TI Evaluating the Influence of pH-Dependent Hydrolysis on the Efficacy of
Flumioxazin for Hydrilla Control
SO JOURNAL OF AQUATIC PLANT MANAGEMENT
LA English
DT Article
DE hydrolysis; protoporphyrinogen oxidase inhibitor
ID OXIDASE-INHIBITING HERBICIDES; DIPHENYL ETHER HERBICIDES; PEANUT
ARACHIS-HYPOGAEA; PROTOPORPHYRINOGEN OXIDASE; WEED MANAGEMENT;
VERTICILLATA; ACIFLUORFEN; RESISTANCE; EVOLUTION
AB Hydrilla (Hydrilla verticillata [L.f.] Royle) is a submersed aquatic weed that continues to spread and create significant management problems in waters throughout the United States. Management tools are limited, and several new herbicide modes of action are being evaluated for control, including flumioxazin (2-[7-fluoro-3,4-dihydro3-oxo-4-(2-propyny1)-2H-1,4-benzoxazin-6-yl]-4,5,6,7-tetrahydro-1H-isoindole-1,3(2H)-dione), a rapid-acting contact herbicide that targets the plant enzyme protoporphyrinogen oxidase (PPO). Despite the rapid onset of flumioxazin injury symptoms and activity at low concentrations (<100 mu g L(-1)), regrowth of hydrilla from lateral buds was noted within 5 to 13 d after treatment at all concentrations. The lack of a consistent dose-response relationship in prior laboratory and field trials led to the hypothesis that pH-dependent hydrolysis of flumioxazin likely influenced efficacy. We evaluated the response of hydrilla exposed to an initial flumioxazin treatment of 400 mu g L(-1) in low (6.0 to 6.2), medium (7.0 to 7.2), and high (>8.5) pH water. Water samples were collected and the half-life of flumioxazin in low, medium, and high pH water was 39.0, 18.6, and 1.7 h, respectively. The results from these studies indicate that efficacy of flumioxazin, especially when applied to higher pH water, may be reduced via rapid hydrolysis.
C1 [Mudge, Christopher R.] USA, Engineer Res & Dev Ctr, Vicksburg, MS 39180 USA.
[Netherland, M. D.] Univ Florida, Ctr Aquat & Invas Plants, USA, Engineer Res & Dev Ctr, Gainesville, FL 32653 USA.
[Kowalsky, J. K.] Valent USA Corp, Dublin, CA 94568 USA.
Scotts Co, Earthgro Topsoil Registered Trademark, Marysville, OH 43041 USA.
RP Mudge, CR (reprint author), USA, Engineer Res & Dev Ctr, 3909 Halls Ferry Rd, Vicksburg, MS 39180 USA.
EM Christo-pher.R.Mudge@usace.army.mil
FU Valent U.S.A. Corporation; Aquatic Ecosystem Restoration Foundation
FX The authors thank Valent U.S.A. Corporation for proving product and
partial funding of this research as well as the Aquatic Ecosystem
Restoration Foundation for providing partial funding. Additionally,
appreciation is extended to M. S. Glenn, D. G. Mayo, B. W. Bultemeier,
C. Hulon, and L. A. Gettys for plant maintenance and harvest. Permission
was granted by the Chief of Engineers to publish this information.
Citation of trade names does not constitute endorsement or approval of
the use of such commercial products.
NR 39
TC 6
Z9 6
U1 0
U2 6
PU AQUATIC PLANT MANAGEMENT SOC, INC
PI VICKSBURG
PA PO BOX 821265, VICKSBURG, MS 39182 USA
SN 0146-6623
J9 J AQUAT PLANT MANAGE
JI J. Aquat. Plant Manage.
PD JAN
PY 2010
VL 48
BP 25
EP 30
PG 6
WC Plant Sciences; Marine & Freshwater Biology
SC Plant Sciences; Marine & Freshwater Biology
GA 767DG
UT WOS:000290834900006
ER
PT J
AU Mudge, CR
Haller, WT
AF Mudge, Christopher R.
Haller, W. T.
TI Effect of pH on Submersed Aquatic Plant Response to Flumioxazin
SO JOURNAL OF AQUATIC PLANT MANAGEMENT
LA English
DT Article
DE Ceratophyllum demersum; chemical control; EC(50): Effective
Concentration 50; Egeria densa; Hydrilla verticillata;
protoporphyrinogen oxidase inhibitor; Vallisneria americana
ID PREPLANT
AB Flumioxazin (2[7-fluoro-3,4-dihydro-3-oxo-4-(2-propynyl)-2H-1,4-benzoxazin-6-yl]-4,5,6,7-tetrahydro-1H-isoindole-1,3(2H)-dione) was applied to the submersed aquatic plant species coontail (Ceratophyllum demeaum L.), egeria (Egeria densa Planch.), hydrilla (Hydrilla verticillata [Lf.] Royle), and vallisneria ( Vallisneria americana Michaux) at concentrations of 0, 100, 200, 400, 800, and 1600 mu g active ingredient (a.i.) under high (9.0) and neutral (7.0) pH. Flumioxazin was more efficacious when applied to plants growing in neutral pH conditions than when applied under high pH conditions. Coontail was the only submersed species to be controlled in high pH conditions at the maximum label Experimental Use Permit (EUP) concentration of 400 mu g L(-1) Other species evaluated in this study required concentrations >3194 mu g L(-1) to reduce biomass by 50% when applied to high pH water. In contrast, plants exposed in neutral pH water conditions, were often severely injured following exposure to flumioxazin. Increasing tolerance of species treated in neutral pH water based on dry-weight calculated effective concentration 50% (EC(50)) values were (in pg L(-1)) coontail (34), hydrilla (77), vallisneria (1244), and egeria (3285). Flumioxazin concentrations as low as 50 pg L(-1) initially injured (bleaching, reddening, and defoliation) most plant species at both pHs; however, plants generally began to produce some healthy new growth prior to harvest. Results of these studies demonstrated a differential species tolerance to flumioxazin and a potential for a strong influence of pH to impact treatment efficacy as well as selectivity.
C1 [Mudge, Christopher R.] USA, Army Engineer Res & Dev, Vicksburg, MS 39180 USA.
[Mudge, Christopher R.; Haller, W. T.] Univ Florida, Ctr Aquat & Invas Plants, Gainesville, FL 32653 USA.
Scotts Co, Marysville, OH 43041 USA.
RP Mudge, CR (reprint author), USA, Army Engineer Res & Dev, 3909 Halls Ferry Rd, Vicksburg, MS 39180 USA.
EM Christo-pher.R.Mudge@usace.army.mil
FU Aquatic Ecosystem Restoration Foundation; Valent U.S.A. Corporation;
Florida Fish and Wildlife Conservation Commission Invasive Plant
Management Section
FX We thank the Aquatic Ecosystem Restoration Foundation, Valent U.S.A.
Corporation, and Florida Fish and Wildlife Conservation Commission
Invasive Plant Management Section for partial funding of this research.
Product was provided by Valent. Additionally, appreciation is extended
to B. W. Bultemeier, M. S. Glenn, D. G. Mayo, and T. F. Chiconela for
plant maintenance and harvest. M. D. Netherland, A. G. Poovey, and L. M.
Glomski kindly provided reviews of this manuscript. Permission was
granted by the Chief of Engineers to publish this information. Citation
of trade names does not constitute endorsement or approval of the use of
such commercial products.
NR 25
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U1 1
U2 8
PU AQUATIC PLANT MANAGEMENT SOC, INC
PI VICKSBURG
PA PO BOX 821265, VICKSBURG, MS 39182 USA
SN 0146-6623
J9 J AQUAT PLANT MANAGE
JI J. Aquat. Plant Manage.
PD JAN
PY 2010
VL 48
BP 30
EP 34
PG 5
WC Plant Sciences; Marine & Freshwater Biology
SC Plant Sciences; Marine & Freshwater Biology
GA 767DG
UT WOS:000290834900007
ER
PT J
AU Cameron, KL
Owens, BD
DeBerardino, TM
AF Cameron, Kenneth L.
Owens, Brett D.
DeBerardino, Thomas M.
TI Incidence of Ankle Sprains Among Active-Duty Members of the United
States Armed Services From 1998 Through 2006
SO JOURNAL OF ATHLETIC TRAINING
LA English
DT Article
DE injury epidemiology; injury surveillance; military populations
ID RISK-FACTORS; LATERAL ANKLE; PUBLIC-HEALTH; INJURIES; EPIDEMIOLOGY;
SPORTS; WOMEN; MEN; POPULATION; PROPENSITY
AB Context: Ankle sprains have been reported as one of the most common injuries sustained by members of the US Armed Services. However, little is known about the incidence rate and injury patterns associated with ankle sprains in this population.
Objective: To examine the incidence of ankle sprains among active-duty members of the US Armed Services from 1998 through 2006. A secondary objective was to describe the sex, age, and service-specific injury patterns in this young, physically active population.
Design: Cohort study.
Patients or Other Participants: All active-duty service members from the day they enter military service until the day they leave military service and US Army Reserve and National Guard service members during periods of active duty and mobilization.
Main Outcome Measure(s): Injury data were extracted from the Defense Medical Epidemiological Database from 1998 through 2006. All data for ankle sprains, coded according to the International Classification of Diseases (9th revision), were included. Cases were limited to those injuries reported as first occurrences. Incidence rates (IRs) were calculated per 1000 person-years by sex, age, and service. Incidence rate ratios (IRRs) and 95% confidence intervals (95% CIs) were used to assess the strength of association between the incidence of ankle sprain and the independent variables of sex, age, and service.
Results: From 1998 through 2006, 423581 service members sustained ankle sprains and 12 118 863 person-years at risk to injury were documented in this population. The incidence rate was 34.95 (95% CI = 34.85, 35.06) per 1000 person-years at risk. Females were 21% more likely (IRR = 1.21, 95% Cl = 1.21, 1.23) to sustain an ankle sprain than males. Sex-specific IR varied by age and service. Differences in the rate of ankle sprains were also noted by age and service.
Conclusions: The incidence of ankle sprains among US service members was 5 times greater than that previously reported in civilian population studies. Sex, age, and branch of military service are important factors related to the incidence of ankle sprains in this population.
C1 [Cameron, Kenneth L.; Owens, Brett D.; DeBerardino, Thomas M.] US Mil Acad, Keller Army Hosp, West Point, NY 10996 USA.
RP Cameron, KL (reprint author), US Mil Acad, Keller Army Hosp, 900 Washington Rd, West Point, NY 10996 USA.
EM kenneth.cameron@amedd.army.mil
OI DeBerardino, Thomas/0000-0002-7110-8743
NR 36
TC 24
Z9 24
U1 0
U2 0
PU NATL ATHLETIC TRAINERS ASSOC INC
PI DALLAS
PA 2952 STEMMONS FREEWAY, DALLAS, TX 75247 USA
SN 1062-6050
J9 J ATHL TRAINING
JI J. Athl. Train.
PD JAN-FEB
PY 2010
VL 45
IS 1
BP 29
EP 38
DI 10.4085/1062-6050-45.1.29
PG 10
WC Sport Sciences
SC Sport Sciences
GA 547UX
UT WOS:000273916100004
PM 20064045
ER
PT J
AU Cameron, KL
AF Cameron, Kenneth L.
TI TIME FOR A PARADIGM SHIFT IN CONCEPTUALIZING RISK FACTORS IN SPORTS
INJURY RESEARCH
SO JOURNAL OF ATHLETIC TRAINING
LA English
DT Editorial Material
ID CRUCIATE LIGAMENT INJURIES; RANDOMIZED CONTROLLED-TRIAL; PREVENTION;
ETIOLOGY; PLAYERS; PROGRAM; MODEL; ACL
C1 Keller Army Hosp, West Point, NY USA.
RP Cameron, KL (reprint author), Keller Army Hosp, West Point, NY USA.
NR 24
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Z9 14
U1 0
U2 2
PU NATL ATHLETIC TRAINERS ASSOC INC
PI DALLAS
PA 2952 STEMMONS FREEWAY, DALLAS, TX 75247 USA
SN 1062-6050
J9 J ATHL TRAINING
JI J. Athl. Train.
PD JAN-FEB
PY 2010
VL 45
IS 1
BP 58
EP 60
DI 10.4085/1062-6050-45.1.58
PG 3
WC Sport Sciences
SC Sport Sciences
GA 547UX
UT WOS:000273916100008
PM 20064049
ER
PT J
AU Ruff, AL
Dillman, JF
AF Ruff, Albert L.
Dillman, James F., III
TI Sulfur Mustard Induced Cytokine Production and Cell Death: Investigating
the Potential Roles of the p38, p53, and NF-kappa B Signaling Pathways
with RNA Interference
SO JOURNAL OF BIOCHEMICAL AND MOLECULAR TOXICOLOGY
LA English
DT Article
DE Sulfur mustard; Inflammation; p38MAPK; NF-kappa B; p53; Cell death
ID 2-CHLOROETHYL ETHYL SULFIDE; HUMAN KERATINOCYTES; INDUCED APOPTOSIS;
FACTOR-ALPHA; MECHANISM; INJURY; SKIN; ACETYLCYSTEINE; PROLIFERATION;
ACTIVATION
AB Cutaneous and ocular injuries caused by sulfur mustard (SM; bis-(2-chloroethyl) sulfide) are characterized by severe inflammation and death of exposed cells. Given the known roles of p38MAPK and NF-kappa B in inflammatory cytokine production, and the known roles of NF-kappa B and p53 in cell fate, these pathways are of particular interest in the study of SM injury. In this study, we utilized inhibitory RNA (RNAi) targeted against p38 alpha(, the p50 subunit of NF-kappa B, or p53 to characterize their role in SM-induced inflammation and cell death in normal human epidermal keratinocytes (NHEK). Analysis of culture supernatant from 200 mu M SM-exposed cells showed that inflammatory cytokine production was inhibited by p38c alpha RNAi but not by NF-kappa B p50 RNAi. These findings further support a critical role for p38 in SM-induced inflammatory cytokine production in NHEK and suggest that NF-kappa B may not play a role in the SM-induced inflammatory response of this cell type. Inhibition of NF-kappa B by p50 RNAi did, however, partially inhibit SM-induced cell death, suggesting a role for NF-kappa B in SM-induced apoptosis or necrosis. Interestingly, inhibition of p53 by RNAi potentiated SM-induced cell death, suggesting that the role of p53 in SM injury, may be complex and not simply prodeath. (C) 2010 Wiley Periodicals, Inc. J Biochem Mol Toxicol 24:155-164, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10:1002/jbt.20321
C1 [Ruff, Albert L.; Dillman, James F., III] USA, Med Res Inst Chem Def, Div Res, Cell & Mol Biol Branch, Aberdeen Proving Ground, MD 21010 USA.
RP Dillman, JF (reprint author), USA, Med Res Inst Chem Def, Div Res, Cell & Mol Biol Branch, 3100 Ricketts Point Rd, Aberdeen Proving Ground, MD 21010 USA.
EM james.dillman@us.army.mil
FU Defense Threat Reduction Agency-Joint Science and Technology Office,
Medical ST Division
FX Contract Grant Sponsor: Defense Threat Reduction Agency-Joint Science
and Technology Office, Medical S&T Division.
NR 40
TC 15
Z9 16
U1 0
U2 4
PU JOHN WILEY & SONS INC
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 1095-6670
J9 J BIOCHEM MOL TOXIC
JI J. Biochem. Mol. Toxicol.
PY 2010
VL 24
IS 3
BP 155
EP 164
DI 10.1002/jbt.20321
PG 10
WC Biochemistry & Molecular Biology; Toxicology
SC Biochemistry & Molecular Biology; Toxicology
GA 615AD
UT WOS:000279100300002
PM 20143454
ER
PT J
AU Hafeman, AE
Zienkiewicz, KJ
Carney, E
Litzner, B
Stratton, C
Wenke, JC
Guelcher, SA
AF Hafeman, Andrea E.
Zienkiewicz, Katarzyna J.
Carney, Erin
Litzner, Brandon
Stratton, Charles
Wenke, Joseph C.
Guelcher, Scott A.
TI Local Delivery of Tobramycin from Injectable Biodegradable Polyurethane
Scaffolds
SO JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION
LA English
DT Article
DE Scaffold; polyurethane; biodegradable; sustained release; antibiotic;
tobramycin; Staphylococcus aureus; local delivery
ID BONE-GRAFT SUBSTITUTES; SOFT-TISSUE APPLICATIONS; IN-VITRO DEGRADATION;
OPEN FRACTURES; POLYMETHYLMETHACRYLATE BEADS; DRUG-DELIVERY;
GROWTH-FACTOR; ILIAC CREST; OSTEOMYELITIS; INFECTION
AB Infections often compromise the healing of open fractures. While local antibiotic delivery from PMMA beads is an established clinical treatment of infected fractures, surgical removal of the beads is required before implanting a bone graft. A more ideal therapy would comprise a scaffold and antibiotic delivery system administered in one procedure. Biodegradable polyurethane (PUR) scaffolds have been shown in previous studies to promote new bone formation in vivo, but their potential to control infection through release of antibiotics has not been investigated. In this study, injectable PUR scaffolds incorporating tobramycin were prepared by reactive liquid molding. Scaffolds had compressive moduli of 15-115 kPa and porosities ranging from 85-93%. Tobramycin release was characterized by a 45-95% burst (tuned by the addition of PEG), followed by up to 2 weeks of sustained release, with total release 4-5-times greater than equivalent volumes of PMMA beads. Released tobramycin remained biologically active against Staphylococcus aureus, as verified by Kirby-Bauer assays. Similar results were observed for the antibiotics colistin and tigecycline. The versatility of the materials, as well as their potential for injection and controlled release, may present promising opportunities for new therapies for healing of infected wounds. (c) Koninklijke Brill NV, Leiden, 2010
C1 [Hafeman, Andrea E.; Zienkiewicz, Katarzyna J.; Guelcher, Scott A.] Vanderbilt Univ, Dept Chem Engn, Nashville, TN 37235 USA.
[Carney, Erin; Litzner, Brandon; Stratton, Charles] Vanderbilt Univ, Dept Pathol, Nashville, TN 37232 USA.
[Wenke, Joseph C.] USA, Inst Surg Res, Brooke Army Med Ctr, Ft Sam Houston, TX 78234 USA.
RP Guelcher, SA (reprint author), Vanderbilt Univ, Dept Chem Engn, 2301 Vanderbilt Pl,VU Stn B 351604, Nashville, TN 37235 USA.
EM scott.guelcher@vanderbilt.edu
FU US Army Institute for Surgical Research [DOD-W81XWH-06-1-0654];
Orthopaedic Trauma Research Program [DOD-W81XWH-07-1-0211]
FX This work was funded by the US Army Institute for Surgical Research
(DOD-W81XWH-06-1-0654) and the Orthopaedic Trauma Research Program
(DOD-W81XWH-07-1-0211).
NR 52
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Z9 33
U1 0
U2 13
PU VSP BV
PI LEIDEN
PA BRILL ACADEMIC PUBLISHERS, PO BOX 9000, 2300 PA LEIDEN, NETHERLANDS
SN 0920-5063
J9 J BIOMAT SCI-POLYM E
JI J. Biomater. Sci.-Polym. Ed.
PY 2010
VL 21
IS 1
BP 95
EP 112
DI 10.1163/156856209X410256
PG 18
WC Engineering, Biomedical; Materials Science, Biomaterials; Polymer
Science
SC Engineering; Materials Science; Polymer Science
GA 549LN
UT WOS:000274050600007
PM 20040156
ER
PT J
AU Nuss, JE
Ruthel, G
Tressler, LE
Wanner, LM
Torres-Melendez, E
Hale, ML
Bavari, S
AF Nuss, Jonathan E.
Ruthel, Gordon
Tressler, Lyal E.
Wanner, Laura M.
Torres-Melendez, Edna
Hale, Martha L.
Bavari, Sina
TI Development of Cell-Based Assays to Measure Botulinum Neurotoxin
Serotype A Activity Using Cleavage-Sensitive Antibodies
SO JOURNAL OF BIOMOLECULAR SCREENING
LA English
DT Article
DE botulism; cell-based assay; drug discovery; high-throughput screening;
assay development
ID INFANT BOTULISM; IDENTIFICATION; HEADACHE; NEURONS; TOXIN; NERVE
AB Botulinum neurotoxins (BoNTs) are zinc-metalloproteases that cleave components of the SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) protein complex, inhibiting acetylcholine release into neuromuscular junctions, resulting in flaccid paralysis and eventual death. The potential for the malicious misuse of these toxins as bioweapons has created an urgent need to develop effective therapeutic countermeasures. Robust cell-based assays will be essential for lead identification and the optimization of therapeutic candidates. In this study, the authors developed novel BoNT serotype A (BoNT/A) cleavage-sensitive (BACS) antibodies that only interact with full-length SNAP-25 (synaptosomal-associated protein of 25 kDa), the molecular target of the BoNT/A serotype. These antibodies exhibit high specificity for full-length SNAP-25, allowing the BoNT/A-mediated proteolysis of this protein to be measured in diverse assay formats, including several variations of enzyme-linked immunosorbent assay and multiple immunofluorescence methods. Assays built around the BACS antibodies displayed excellent sensitivity, had excellent reproducibility, and were amenable to multiwell formats. Importantly, these assays provided novel methods for evaluating BoNT/A activity in cellular models of intoxication and allowed for the high-throughput evaluation of experimental compounds. (Journal of Biomolecular Screening 2010: 42-51)
C1 [Nuss, Jonathan E.; Ruthel, Gordon; Tressler, Lyal E.; Wanner, Laura M.; Torres-Melendez, Edna; Hale, Martha L.; Bavari, Sina] USA, Med Res Inst Infect Dis, Frederick, MD 21702 USA.
RP Bavari, S (reprint author), USA, Med Res Inst Infect Dis, 1425 Porter St, Frederick, MD 21702 USA.
EM sina.bavari@amedd.army.mil
FU Defense Threat Reduction Agency [3.10084_09_RD_B]
FX This research was supported by a grant awarded to S. B. from the Defense
Threat Reduction Agency (3.10084_09_RD_B). Opinions, interpretations,
conclusions, and recommendations are those of the authors and are not
necessarily endorsed by the US Army. We also thank Dr. Jim Burnett for
his careful review of the manuscript.
NR 23
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Z9 13
U1 2
U2 5
PU SAGE PUBLICATIONS INC
PI THOUSAND OAKS
PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
SN 1087-0571
J9 J BIOMOL SCREEN
JI J. Biomol. Screen
PD JAN
PY 2010
VL 15
IS 1
BP 42
EP 51
DI 10.1177/1087057109354779
PG 10
WC Biochemical Research Methods; Biotechnology & Applied Microbiology;
Chemistry, Analytical
SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology;
Chemistry
GA 544JB
UT WOS:000273650900005
PM 19965805
ER
PT J
AU Sterbis, JR
Rice, KR
Javitt, MC
Schenkman, NS
Brassell, SA
AF Sterbis, Joseph R.
Rice, Kevin R.
Javitt, Marcia C.
Schenkman, Noah S.
Brassell, Stephen A.
TI Fusion Imaging: A Novel Staging Modality in Testis Cancer
SO JOURNAL OF CANCER
LA English
DT Article
DE Germ Cell; Imaging; Positron Emission Tomography; Staging; Testis Cancer
AB Objective: Computed tomography and chest radiographs provide the standard imaging for staging, treatment, and surveillance of testicular germ cell neoplasms. Positron emission tomography has recently been utilized for staging, but is somewhat limited in its ability to provide anatomic localization. Fusion imaging combines the metabolic information provided by positron emission tomography with the anatomic precision of computed tomography. To the best of our knowledge, this represents the first study of the effectiveness using fusion imaging in evaluation of patients with testis cancer.
Methods: A prospective study of 49 patients presenting to Walter Reed Army Medical Center with testicular cancer from 2003 to 2009 was performed. Fusion imaging was compared with conventional imaging, tumor markers, pathologic results, and clinical follow-up.
Results: There were 14 true positives, 33 true negatives, 1 false positive, and 1 false negative. Sensitivity, specificity, positive predictive value, and negative predictive value were 93.3, 97.0, 93.3, and 97.0% respectively. In 11 patient scenarios, fusion imaging differed from conventional imaging. Utility was found in superior lesion detection compared to helical computed tomography due to anatomical/functional image co-registration, detection of micrometastasis in lymph nodes (pathologic nodes < 1cm), surveillance for recurrence post-chemotherapy, differentiating fibrosis from active disease in nodes < 2.5cm, and acting as a quality assurance measure to computed tomography alone.
Conclusions: In addition to demonstrating a sensitivity and specificity comparable or superior to conventional imaging, fusion imaging shows promise in providing additive data that may assist in clinical decision-making.
C1 [Sterbis, Joseph R.; Rice, Kevin R.; Schenkman, Noah S.; Brassell, Stephen A.] Walter Reed Army Med Ctr, Dept Surg, Urol Serv, Washington, DC 20307 USA.
[Javitt, Marcia C.] Walter Reed Army Med Ctr, Dept Radiol, Washington, DC 20307 USA.
RP Brassell, SA (reprint author), Walter Reed Army Med Ctr, Bldg 2,Ward 56,6900 Georgia Ave NW, Washington, DC 20307 USA.
EM Stephen.Brassell@amedd.army.mil
NR 24
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Z9 6
U1 0
U2 2
PU IVYSPRING INT PUBL
PI LAKE HAVEN
PA PO BOX 4546, LAKE HAVEN, NSW 2263, AUSTRALIA
SN 1837-9664
J9 J CANCER
JI J. Cancer
PY 2010
VL 1
BP 223
EP 229
PG 7
WC Oncology
SC Oncology
GA V28QL
UT WOS:000208695200027
PM 21103077
ER
PT J
AU Roberts, TM
Wang, P
Kraus, NC
AF Roberts, Tiffany M.
Wang, Ping
Kraus, Nicholas C.
TI Limits of Wave Runup and Corresponding Beach-Profile Change from
Large-Scale Laboratory Data
SO JOURNAL OF COASTAL RESEARCH
LA English
DT Article
DE Beach erosion; nearshore sediment transport; wave breaking; cross-shore
sediment transport; physical modeling; surf zone processes
ID NATURAL BEACH; SEDIMENT TRANSPORT; SWASH OSCILLATIONS; SET-UP; FLORIDA
AB The dataset from the SUPERTANK laboratory experiment was analyzed to examine wave runup and the corresponding upper limit of beach-profile change. Thirty SUPERTANK runs were investigated that included both erosional and accretionary wave conditions with random and monochromatic waves. The upper limit of beach change U(L) was found to approximately equal the vertical excursion of total wave runup, R(tw). An exception was runs where beach or dune scarps were produced, which substantially limit the uprush of swash motion to produce a much reduced total runup. Based on the SUPERTANK dataset, the vertical extent of wave runup above mean water level on a beach without scarp formation was found to approximately equal the significant breaking wave height, H(bs). Therefore, a new and simple relation R(tw) = H(bs) is proposed. The linear relationship between total runup and breaking wave height is supported by a conceptual derivation. In addition, the relation is extended to U(L) = R(tw) = H(bs) to approximate the upper limit of beach change. This formula accurately reproduced the measured upper limit of beach change from the three-dimensional experiments in the Corps' large-scale sediment transport facility. For the studied laboratory cases, predictions of wave runup were not improved by including a slope-dependent surf-similarity parameter. The limit of wave runup was substantially less for monochromatic waves than for random waves, attributed to absence of low-frequency motion.
C1 [Roberts, Tiffany M.; Wang, Ping] Univ S Florida, Dept Geol, Tampa, FL 33620 USA.
[Kraus, Nicholas C.] USA, Engineer Res & Dev Ctr, Coastal & Hydraul Lab, Vicksburg, MS 39180 USA.
RP Roberts, TM (reprint author), Univ S Florida, Dept Geol, 4202 E Fowler Ave, Tampa, FL 33620 USA.
EM tmrobert@cas.usf.edu
FU U.S. Army Engineer Research and Development Center; University of South
Florida
FX This study is jointly funded by the Coastal Inlet Research Program
(CIRP) at the U.S. Army Engineer Research and Development Center and the
University of South Florida. Constructive reviews by Dr. Nicole Elko and
two anonymous reviewers are acknowledged.
NR 43
TC 9
Z9 9
U1 0
U2 9
PU COASTAL EDUCATION & RESEARCH FOUNDATION
PI LAWRENCE
PA 810 EAST 10TH STREET, LAWRENCE, KS 66044 USA
SN 0749-0208
J9 J COASTAL RES
JI J. Coast. Res.
PD JAN
PY 2010
VL 26
IS 1
BP 184
EP 198
DI 10.2112/08-1097.1
PG 15
WC Environmental Sciences; Geography, Physical; Geosciences,
Multidisciplinary
SC Environmental Sciences & Ecology; Physical Geography; Geology
GA 549IL
UT WOS:000274041300018
ER
PT J
AU Mahajan, A
Alexander, LS
Seabolt, BS
Catrambone, DE
McClung, JP
Odle, J
Pfeiler, TW
Loboa, EG
Stahl, CH
AF Mahajan, A.
Alexander, L. S.
Seabolt, B. S.
Catrambone, D. E.
McClung, J. P.
Odle, J.
Pfeiler, T. W.
Loboa, E. G.
Stahl, C. H.
TI Dietary calcium affects neonatal bone development and mesenchymal stem
cell activity.
SO JOURNAL OF DAIRY SCIENCE
LA English
DT Meeting Abstract
DE calcium; mesenchymal stem cells; pig
C1 [Mahajan, A.; Alexander, L. S.; Seabolt, B. S.; Odle, J.; Stahl, C. H.] N Carolina State Univ, Lab Dev Nutr, Raleigh, NC 27695 USA.
[Catrambone, D. E.; McClung, J. P.] USA, Environm Med Res Inst, Mil Nutr Div, Natick, MA 01760 USA.
[Pfeiler, T. W.; Loboa, E. G.] Univ N Carolina Chapel Hill, Joint Dept Biomed Engn, Raleigh, NC USA.
RI McClung, James/A-1989-2009
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0022-0302
J9 J DAIRY SCI
JI J. Dairy Sci.
PY 2010
VL 93
SU 1
BP 660
EP 661
PG 2
WC Agriculture, Dairy & Animal Science; Food Science & Technology
SC Agriculture; Food Science & Technology
GA 822NU
UT WOS:000295056202491
ER
PT J
AU Ziemer, C
Arcidiacano, S
Ragauskas, A
Morrison, M
AF Ziemer, C.
Arcidiacano, S.
Ragauskas, A.
Morrison, M.
TI Increased fiber digestion and decreased fecal output in pigs fed
fibrolytic bacteria
SO JOURNAL OF DAIRY SCIENCE
LA English
DT Meeting Abstract
DE pig; fiber digestion; fecal output
C1 [Ziemer, C.] USDA, ARS, Nat Lab Agr & Environm, Ames, IA USA.
[Arcidiacano, S.] USA, Natick Soldier Ctr, Natick, MA 01760 USA.
[Ragauskas, A.] Georgia Inst Technol, Inst Paper Sci & Technol, Atlanta, GA 30332 USA.
[Morrison, M.] Ohio State Univ, Dept Anim Sci, Columbus, OH 43210 USA.
[Morrison, M.] CSIRO Livestock Ind, St Lucia, Qld, Australia.
NR 0
TC 0
Z9 0
U1 1
U2 1
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0022-0302
J9 J DAIRY SCI
JI J. Dairy Sci.
PY 2010
VL 93
SU 1
BP 814
EP 814
PG 1
WC Agriculture, Dairy & Animal Science; Food Science & Technology
SC Agriculture; Food Science & Technology
GA 822NU
UT WOS:000295056203191
ER
PT J
AU Farrell, S
Brill, G
Chen, Y
Wijewarnasuriya, PS
Rao, MV
Dhar, N
Harris, K
AF Farrell, S.
Brill, G.
Chen, Y.
Wijewarnasuriya, P. S.
Rao, Mulpuri V.
Dhar, N.
Harris, K.
TI Ex Situ Thermal Cycle Annealing of Molecular Beam Epitaxy Grown
HgCdTe/Si Layers
SO JOURNAL OF ELECTRONIC MATERIALS
LA English
DT Article
DE Mercury cadmium telluride (HgCdTe); thermal cycle annealing; etch pit
density (EPD); dislocations; molecular beam epitaxy (MBE); silicon (Si);
composite substrates
ID DISLOCATION REDUCTION; GAAS; PHOTODIODES; DENSITY; CDTE
AB We present the results of ex situ thermal cycle annealing (TCA) of molecular beam epitaxy grown mercury cadmium telluride (HgCdTe) on Cd(Se)Te/Si(211) composite substrates. We examined the variation in the etch pit density (EPD) and overall crystalline quality with respect to annealing temperature, number of annealing cycles, total annealing time, pre-annealed EPD/crystal quality, buffer layer quality, and buffer layer lattice constant. Using TCA we observed an order of magnitude reduction in the dislocation density of the HgCdTe layers and a corresponding decrease in x-ray full width at half maximum, when the as-grown layer EPD was on the order of 1 x 10(7) cm(-2). Among all the parameters studied, the one with the greatest influence on reducing EPD was the number of annealing cycles. We also noticed a saturation point where the HgCdTe/Si EPD did not decrease below similar to 1 x 10(6) cm(-2), regardless of further TCA treatment or the as-grown EPD value.
C1 [Farrell, S.; Rao, Mulpuri V.] George Mason Univ, Dept Elect & Comp Engn, Fairfax, VA 22030 USA.
[Brill, G.; Chen, Y.; Wijewarnasuriya, P. S.] USA, Res Lab, Sensors & Electron Devices Directorate, Adelphi, MD 20783 USA.
[Dhar, N.] MTO, DARPA, Arlington, VA 22203 USA.
[Harris, K.] Penn State Electroopt Ctr, Freeport, PA 16229 USA.
RP Farrell, S (reprint author), George Mason Univ, Dept Elect & Comp Engn, Fairfax, VA 22030 USA.
EM priyalal.wijewarnasuriya@us.army.mil
RI Brill, Gregory/G-4877-2013
FU George Mason University (GMU); Army Research Office (ARO)
[W911NF-07-2-0055]; Penn State Electro-Optics Center
FX The work at George Mason University (GMU) is supported by the Army
Research Office (ARO) under grant no. W911NF-07-2-0055 and also by the
Penn State Electro-Optics Center.
NR 13
TC 16
Z9 17
U1 0
U2 8
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0361-5235
J9 J ELECTRON MATER
JI J. Electron. Mater.
PD JAN
PY 2010
VL 39
IS 1
BP 43
EP 48
DI 10.1007/s11664-009-0956-3
PG 6
WC Engineering, Electrical & Electronic; Materials Science,
Multidisciplinary; Physics, Applied
SC Engineering; Materials Science; Physics
GA 541GG
UT WOS:000273402700008
ER
PT J
AU Maranich, AM
Weisse, M
AF Maranich, Ashley M.
Weisse, Martin
TI POSITIVE CEREBRAL SPINAL FLUID CULTURES WITH NORMAL CELL COUNT AND GRAM
STAIN
SO JOURNAL OF EMERGENCY MEDICINE
LA English
DT Letter
ID CEREBROSPINAL-FLUID; BACTERIAL-MENINGITIS
C1 [Maranich, Ashley M.] Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA.
[Maranich, Ashley M.; Weisse, Martin] Walter Reed Army Med Ctr, Washington, DC 20307 USA.
RP Maranich, AM (reprint author), Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA.
OI Langdorf, Mark/0000-0002-9019-2047
NR 5
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0736-4679
J9 J EMERG MED
JI J. Emerg. Med.
PD JAN
PY 2010
VL 38
IS 1
BP 60
EP 60
DI 10.1016/j.jemermed.2008.11.032
PG 1
WC Emergency Medicine
SC Emergency Medicine
GA 551OK
UT WOS:000274218700014
PM 19665336
ER
PT J
AU Zhang, K
Kim, YK
Cadenaro, M
Bryan, TE
Sidow, SJ
Loushine, RJ
Ling, JQ
Pashley, DH
Tay, FR
AF Zhang, Kai
Kim, Young Kyung
Cadenaro, Milena
Bryan, Thomas E.
Sidow, Stephanie J.
Loushine, Robert J.
Ling, Jun-qi
Pashley, David H.
Tay, Franklin R.
TI Effects of Different Exposure Times and Concentrations of Sodium
Hypochlorite/Ethylenediaminetetraacetic Acid on the Structural Integrity
of Mineralized Dentin
SO JOURNAL OF ENDODONTICS
LA English
DT Article
DE Collagen; denaturation; ethylenediamine tetraacetic acid; flexural
strength; Fourier transform infrared spectroscopy; irrigation; sodium
hypochlorite; three point bending
ID ROOT-CANAL IRRIGANTS; SMEAR LAYER REMOVAL; MECHANICAL-PROPERTIES;
BACTERIAL POPULATION; ENDODONTIC IRRIGANTS; IRRIGATION REGIMENS;
HYPOCHLORITE; INSTRUMENTATION; COLLAGEN; EDTA
AB Introduction: This study tested the null hypothesis that there is no difference between the use of 1.3% NaOCl/17% ethylenediaminetetraacetic acid (EDTA) and 5.25% NaOCl/17% EDTA irrigation regimens on the collagen degradation and flexural strength reduction in mineralized dentin. Methods: Dentin powder and mineralized dentin sections were immersed in 1.3% or 5.25% NaOCl for 10-240 minutes and then rinsed with 17% EDTA as the final irrigant for 2 minutes. Untreated mineralized dentin powder/sections served as controls in the respective experiments. Dentin powders were examined by using Fourier transform infrared (FT-IR) spectroscopy to analyze their relative subsurface intact collagen content with the apatite/collagen ratio. Hydrated dentin sections were subjected to 3-point flexure under water for determining their flexural strengths. Results: Collagen degradation was significantly increased and the flexural strength of mineralized dentin was significantly reduced after the use of 5.25% NaOCl as the initial irrigant for more than 1 hour (P < .05). Conversely, changes were insignificant when 1.3% NaOCl was used as the initial irrigant for up to 4 hours (Kruskal-Wallis analysis of variance, n = 10, P < .05). Conclusions: The null hypothesis was rejected. The deleterious effects attributed to the use of NaOCl on dentin are concentration-dependent and time-dependent and are not associated with the demineralization caused by the use of EDTA as the final active irrigant. (J Endod 2010;36:105-109)
C1 [Bryan, Thomas E.; Loushine, Robert J.; Tay, Franklin R.] Med Coll Georgia, Sch Dent, Dept Endodont, Augusta, GA 30912 USA.
[Zhang, Kai; Ling, Jun-qi] Sun Yat Sen Univ, Dept Operat Dent & Endodont, Guanghua Sch Stomatol, Guangzhou 510275, Guangdong, Peoples R China.
[Kim, Young Kyung] Kyungpook Natl Univ, Dept Conservat Dent, Sch Dent, Taegu, South Korea.
[Cadenaro, Milena] Univ Trieste, Dept Biomed, Trieste, Italy.
[Sidow, Stephanie J.] USA, Dent Activ, Ft Gordon, GA 30905 USA.
[Pashley, David H.; Tay, Franklin R.] Med Coll Georgia, Dept Oral Biol, Sch Dent, Augusta, GA 30912 USA.
RP Tay, FR (reprint author), Med Coll Georgia, Sch Dent, Dept Endodont, Augusta, GA 30912 USA.
EM ftay@mail.mcg.edu
RI deniz sungur, derya /H-2540-2016;
OI Cadenaro, Milena/0000-0002-3755-3181
FU Dental Research Center, School of Dentistry, Medical College of Georgia
FX This study was supported by the Dental Research Center, School of
Dentistry, Medical College of Georgia. The authors are grateful to Drs
Jongryul Kim and Li-sha Gu for their technical support and Mrs Michelle
Barnes for her secretarial support.
NR 35
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U1 0
U2 9
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0099-2399
J9 J ENDODONT
JI J. Endod.
PD JAN
PY 2010
VL 36
IS 1
BP 105
EP 109
DI 10.1016/j.joen.2009.10.020
PG 5
WC Dentistry, Oral Surgery & Medicine
SC Dentistry, Oral Surgery & Medicine
GA 617KI
UT WOS:000279279200017
PM 20003945
ER
PT J
AU Fang, SF
Gertner, GZ
Anderson, AB
Howard, HR
Sullivan, P
Otto, C
AF Fang, Shoufan
Gertner, George Z.
Anderson, Alan B.
Howard, Heidi R.
Sullivan, Patricia
Otto, Chris
TI Prediction and uncertainty source analysis of the spatial and temporal
disturbance from off-road vehicular traffic in a complex ecosystem
SO JOURNAL OF ENVIRONMENTAL MANAGEMENT
LA English
DT Article
DE Disturbance; Error budget; Off-road vehicle traffic; Uncertainty
analysis
ID IMPACTS; MODELS
AB Vehicle use during military training activities results in soil disturbance and vegetation loss. The capacity of lands to sustain training is a function of the sensitivity of lands to vehicle use and the pattern of land use. The sensitivity of land to vehicle use has been extensively studied. Less well understood are the spatial patterns of vehicle disturbance. Since disturbance from off-road vehicular traffic moving through complex landscapes varies spatially, a spatially explicit nonlinear regression model (disturbance model) was used to predict the pattern of vehicle disturbance across a training facility. An uncertainty analysis of the model predictions assessed the spatial distribution of prediction uncertainty and the contribution of different error sources to that uncertainty.
For the most part, this analysis showed that mapping and modeling process errors contributed more than 95% of the total uncertainty of predicted disturbance, while satellite imagery error contributed less than 5% of the uncertainty. When the total uncertainty was larger than a threshold, modeling error contributed 60% to 90% of the prediction uncertainty. Otherwise, mapping error contributed about 10% to 50% of the total uncertainty. These uncertainty sources were further partitioned spatially based on other sources of uncertainties associated with vehicle moment, landscape characterization, satellite imagery, etc. (C) 2009 Elsevier Ltd. All rights reserved.
C1 [Gertner, George Z.] Univ Illinois, Urbana, IL 61801 USA.
[Fang, Shoufan] Univ Alberta, Edmonton, AB, Canada.
[Anderson, Alan B.; Howard, Heidi R.] Engineer Res Dev Ctr, Champaign, IL USA.
[Sullivan, Patricia] Engineer Res Dev Ctr, Vicksburg, MS USA.
[Otto, Chris] Integrated Training Area Management Program, Ft Riley, KS USA.
RP Gertner, GZ (reprint author), Univ Illinois, Urbana, IL 61801 USA.
EM gertner@illinois.edu
NR 22
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U1 0
U2 6
PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
PI LONDON
PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
SN 0301-4797
EI 1095-8630
J9 J ENVIRON MANAGE
JI J. Environ. Manage.
PD JAN-FEB
PY 2010
VL 91
IS 3
BP 772
EP 780
DI 10.1016/j.jenvman.2009.10.008
PG 9
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA 556PC
UT WOS:000274602300021
PM 19939549
ER
PT J
AU Rule, AM
Geyh, AS
Ramos-Bonilla, JP
Mihalic, JN
Margulies, JD
Polyak, LM
Kesavan, J
Breysse, PN
AF Rule, Ana M.
Geyh, Alison S.
Ramos-Bonilla, Juan P.
Mihalic, Jana N.
Margulies, Jared D.
Polyak, Lisa M.
Kesavan, Jana
Breysse, Patrick N.
TI Design and characterization of a sequential cyclone system for the
collection of bulk particulate matter
SO JOURNAL OF ENVIRONMENTAL MONITORING
LA English
DT Article
ID INDUCED AIRWAY HYPERRESPONSIVENESS; ULTRAFINE PARTICLE CONCENTRATOR;
ACTIVATION; MORTALITY; POLLUTION; EXPOSURE; HEALTH; CELLS; AEROSOLS;
COARSE
AB In this paper, we describe the design, development and characterization of a high-volume sequential cyclone system for the collection of size-segregated PM in dry bulk form from the ambient environment in sufficient quantity for physical, chemical and toxicological characterization. The first stage of the system consists of a commercially available high volume PM(10) inlet. The second stage cyclone was designed by us to collect inhalable coarse particles (<10 mu m and >2.5 mu m). When tested individually with a challenge aerosol, a D(50) cut-size of this stage was found to be 2.3 mu m at a flow rate of 1 m(3) min(-1). The third stage, a commercially available cyclone designed for surface dust sampling, had a D(50) cut-size of 0.3 mu m when tested at the same flow rate. The purpose of the third stage is to collect the fine particle portion of PM(2.5) or accumulation mode (PM <2.5 mu m and >0.1 mu m). Thus, the sequential cyclone system will collect bulk samples of both the inhalable coarse particles and the fine particle portion of PM(2.5). The operation and maintenance of the new system are straightforward and allow for reliable collection of dry bulk ambient PM at relatively low cost.
C1 [Rule, Ana M.; Geyh, Alison S.; Ramos-Bonilla, Juan P.; Mihalic, Jana N.; Breysse, Patrick N.] Johns Hopkins Univ, Dept Environm Hlth Sci, Baltimore, MD 21205 USA.
[Margulies, Jared D.] Goucher Coll, Baltimore, MD 21204 USA.
[Kesavan, Jana] RDECOM, Edgewood Chem & Biol Ctr, Aerosol Sci Team, Aberdeen Proving Ground, MD 21010 USA.
[Polyak, Lisa M.] USA, Publ Hlth Command, Air Qual Surveillance Program, Aberdeen Proving Ground, MD 21020 USA.
RP Rule, AM (reprint author), Johns Hopkins Univ, Dept Environm Hlth Sci, 615 N Wolfe St E6628, Baltimore, MD 21205 USA.
EM arule@jhsph.edu
FU United States Environmental Protection Agency [RD-83241701]; US
Environmental Protection Agency [R82672401]; National Institute for
Environmental Health Sciences [ES09606, ES03819]
FX Although the research described in this article has been funded wholly
or in part by the United States Environmental Protection Agency through
grant/cooperative agreement # RD-83241701 to Dr Patrick Breysse, it has
not been subjected to the Agency's required peer and policy review and
therefore does not necessarily reflect the views of the Agency and no
official endorsement should be inferred. Additional support was provided
by grants from the US Environmental Protection Agency (R82672401) and
the National Institute for Environmental Health Sciences grant numbers
(ES09606 and ES03819).
NR 42
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U1 2
U2 12
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1464-0325
J9 J ENVIRON MONITOR
JI J. Environ. Monit.
PY 2010
VL 12
IS 10
BP 1807
EP 1814
DI 10.1039/c0em00034e
PG 8
WC Chemistry, Analytical; Environmental Sciences
SC Chemistry; Environmental Sciences & Ecology
GA 659SB
UT WOS:000282586100003
PM 20676427
ER
PT J
AU Schuh, AJ
Li, L
Tesh, RB
Innis, BL
Barrett, ADT
AF Schuh, Amy J.
Li, Li
Tesh, Robert B.
Innis, Bruce L.
Barrett, Alan D. T.
TI Genetic characterization of early isolates of Japanese encephalitis
virus: genotype II has been circulating since at least 1951
SO JOURNAL OF GENERAL VIROLOGY
LA English
DT Article
ID ENVELOPE GLYCOPROTEIN; SOUTHEAST-ASIA; INTRODUCTIONS
AB Japanese encephalitis virus (JEV) consists of five genotypes (GI-V). Phylogenetic characterization of 16 JEV strains isolated from the 'USSR', Japan and Korea during the 1930-1970s revealed that 15 strains fell into GIII, confirming that GIII was the predominant genotype of JEV in Japan and Korea between 1935 (isolation of the prototype strain; a GIII virus) and the 1990s (when GI supplanted GIII). One of the Korean isolates fell into GII, demonstrating that GII has been circulating for at least 19 years longer than previously thought. Formerly, GII was associated with endemic disease and this genotype had never been isolated north of Southern Thailand. Additionally, the northern border of GIII prevalence was extended from Japan to the 'USSR'.
C1 [Schuh, Amy J.; Li, Li; Tesh, Robert B.; Barrett, Alan D. T.] Univ Texas Med Branch, Ctr Biodef & Emerging Infect Dis, Galveston, TX 77555 USA.
[Schuh, Amy J.; Li, Li; Barrett, Alan D. T.] Univ Texas Med Branch, Sealy Ctr Vaccine Dev, Galveston, TX 77555 USA.
[Schuh, Amy J.; Li, Li; Barrett, Alan D. T.] Univ Texas Med Branch, Inst Human Infect & Immun, Galveston, TX 77555 USA.
[Schuh, Amy J.; Li, Li; Tesh, Robert B.; Barrett, Alan D. T.] Univ Texas Med Branch, Dept Pathol, Galveston, TX 77555 USA.
[Innis, Bruce L.] Walter Reed Army Inst Res, Dept Virus Dis, Washington, DC 20307 USA.
RP Barrett, ADT (reprint author), Univ Texas Med Branch, Ctr Biodef & Emerging Infect Dis, Galveston, TX 77555 USA.
EM abarrett@utmb.edu
FU NIH [AI 067847, N01-AI 30027, AI 60549]
FX We thank the WRAIR for donating the older JEV strains. This work was
Supported in part by an NIH grant AI 067847 (to A. D. T. B.) and an NIH
contract N01-AI 30027 (to R. B. T.). A. J. S. is supported by an NIH T32
training grant AI 60549.
NR 22
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U1 0
U2 2
PU SOC GENERAL MICROBIOLOGY
PI READING
PA MARLBOROUGH HOUSE, BASINGSTOKE RD, SPENCERS WOODS, READING RG7 1AG,
BERKS, ENGLAND
SN 0022-1317
J9 J GEN VIROL
JI J. Gen. Virol.
PD JAN
PY 2010
VL 91
BP 95
EP 102
DI 10.1099/vir.0.013631-0
PN 1
PG 8
WC Biotechnology & Applied Microbiology; Virology
SC Biotechnology & Applied Microbiology; Virology
GA 546BM
UT WOS:000273782200011
PM 19776238
ER
PT J
AU Thompson, WC
AF Thompson, Wiley C.
TI Geointerpretative Opportunities Foster Learning Outside the Classroom
SO JOURNAL OF GEOGRAPHY
LA English
DT Article
DE interpretation; geointerpretation; field trip; geography; geology
AB Field trips have long been a part of school activities, learning, and curriculum. The application of interpretive techniques or the interpretive approach can further enhance learning and retention in outside the classroom opportunities. This is especially true when exploring geographic or geologic concepts. This article explores the concept of interpretation and provides an example of an interpretive opportunity developed for local schools. Recommendations on how to develop an effective interpretive program are discussed.
C1 [Thompson, Wiley C.] US Mil Acad, Dept Geog & Environm Engn, West Point, NY 10996 USA.
RP Thompson, WC (reprint author), US Mil Acad, Dept Geog & Environm Engn, West Point, NY 10996 USA.
NR 24
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U1 0
U2 4
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0022-1341
J9 J GEOGR
JI J. Geogr.
PY 2010
VL 109
IS 3
BP 124
EP 129
AR PII 923121001
DI 10.1080/00221341.2010.485549
PG 6
WC Geography
SC Geography
GA 611ZN
UT WOS:000278864300004
ER
PT J
AU Wachman, GS
Biolzi, L
Labuz, JF
AF Wachman, G. S.
Biolzi, L.
Labuz, J. F.
TI Structural Behavior of a Pile-Supported Embankment
SO JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
LA English
DT Article
DE Earth pressure; Embankment stability; Field tests; Geogrids; Load
transfer; Piles; Platforms; Stress distribution
AB The stress field in a pile-supported 3.9-m-high embankment was interpreted through three-dimensional finite-element modeling, and evaluated by field measurements involving strain gauges on the piles and earth pressure cells at the top and bottom of a 0.9-m-thick geogrid-reinforced platform. Analyses of the numerical results and the experimental data suggest that a vaultlike arch developed within the embankment, such that the vertical stress at the top of the platform was concentrated above the piles and virtually no vertical stress was measured between the piles. A similar situation existed within the platform, where an almost stress-free region between the piles was experimentally detected and numerically verified. From a structural point of view, a supporting skeleton was formed from a pile extension through the platform, a type of stress diffusion problem, and an arching effect appeared mainly in the embankment due to the very large stiffness of the piles in comparison to the surrounding media.
C1 [Wachman, G. S.] US Army Corps Engn, St Paul, MN 55101 USA.
[Biolzi, L.] Politecn Milan, Dipartimento Ingn Strutturale, I-20133 Milan, Italy.
[Labuz, J. F.] Univ Minnesota, Dept Civil Engn, Minneapolis, MN 55455 USA.
RP Wachman, GS (reprint author), US Army Corps Engn, 190 5th St E,Suite 401, St Paul, MN 55101 USA.
EM greg.wachman@gmail.com
OI Biolzi, Luigi/0000-0003-4839-3627; Labuz, Joseph/0000-0002-7549-0644
FU Minnesota Department of Transportation (MnDOT)
FX Partial support was provided by the Minnesota Department of
Transportation (MnDOT). Special thanks are extended to the Technical
Advisory Panel, especially Richard Lamb, Derrick Dasenbrock, Gary
Person, and Glenn Engstrom. This paper represents the results of
research conducted by the writers and does not necessarily represent the
views of MnDOT. Furthermore, products mentioned in the paper are stated
for completeness only, and not as an endorsement.
NR 21
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U1 0
U2 16
PU ASCE-AMER SOC CIVIL ENGINEERS
PI RESTON
PA 1801 ALEXANDER BELL DR, RESTON, VA 20191-4400 USA
SN 1090-0241
J9 J GEOTECH GEOENVIRON
JI J. Geotech. Geoenviron. Eng.
PD JAN
PY 2010
VL 136
IS 1
BP 26
EP 34
DI 10.1061/(ASCE)GT.1943-5606.0000180
PG 9
WC Engineering, Geological; Geosciences, Multidisciplinary
SC Engineering; Geology
GA 542VI
UT WOS:000273526700004
ER
PT J
AU Tape, KD
Rutter, N
Marshall, HP
Essery, R
Sturm, M
AF Tape, Ken D.
Rutter, Nick
Marshall, Hans-Peter
Essery, Richard
Sturm, Matthew
TI Recording microscale variations in snowpack layering using near-infrared
photography
SO JOURNAL OF GLACIOLOGY
LA English
DT Article
ID NUMERICAL-MODEL; SEASONAL SNOW; STRATIGRAPHY; UNCERTAINTY; ALASKA;
SCALE; COVER; SLOPE
AB Deposition of snow from precipitation and wind events creates layering within seasonal snowpacks. The thickness and horizontal continuity of layers within seasonal snowpacks can be highly variable, due to snow blowing around topography and vegetation, and this has important implications for hydrology, remote sensing and avalanche forecasting. In this paper, we present practical field and post-processing protocols for recording lateral variations in snow stratigraphy using near-infrared (NIR) photography. A Fuji S9100 digital camera, modified lobe sensitive to NIR wavelengths, was mounted on a rail system that allowed for rapid imaging of a 10 m long snow trench excavated on the north side of Toolik Lake, Alaska (68 degrees 38'N, 149 degrees 36'W). Post-processing of the images included removal of lens distortion and vignetting. A tape measure running along the base of the trench provided known locations (control points) that permitted scaling and georeferencing. Snow layer heights estimated from the NIR images compared well with manual stratigraphic measurements made at 0.2 m intervals along the trench (n = 357, R(2) = 0.97). Considerably greater stratigraphic detail was captured by the NIR images than in the manually recorded profiles. NIR imaging of snow trenches using the described protocols is an efficient tool for quantifying continuous microscale variations in snow layers and associated properties.
C1 [Tape, Ken D.] Univ Alaska Fairbanks, Dept Biol & Wildlife, Inst Arctic Biol, Fairbanks, AK 99775 USA.
[Rutter, Nick] Univ Sheffield, Dept Geog, Sheffield S10 2TN, S Yorkshire, England.
[Marshall, Hans-Peter] Boise State Univ, Ctr Geophys Invest Shallow Subsurface, Boise, ID 83725 USA.
[Essery, Richard] Univ Edinburgh, Sch Geosci, Edinburgh EH9 3JW, Midlothian, Scotland.
[Sturm, Matthew] USA, Reg Res & Engn Lab, Ft Wainwright, AK 99703 USA.
RP Tape, KD (reprint author), Univ Alaska Fairbanks, Dept Biol & Wildlife, Inst Arctic Biol, 902 N Koyukuk Dr,POB 757000, Fairbanks, AK 99775 USA.
EM fnkdt@uaf.edu
RI Marshall, Hans-Peter/A-2374-2010; Rutter, Nick/F-6998-2014
OI Marshall, Hans-Peter/0000-0002-4852-5637; Rutter,
Nick/0000-0002-5008-3575
FU UK Natural Environment Research Council (NERC) [NE/E013902/1]; NASA
[NNG06GE70G]
FX We thank J. Holmgren, K. Elder, D. Cline and the winter crew at the
University of Alaska Fairbanks Toolik Lake research facility for
technical and logistical support. M. Schneebeli provided valuable
insights toward the development of this method. Financial support
through UK Natural Environment Research Council (NERC) Fellowship
NE/E013902/1 (to N.R.) and NASA THP/NEWS NNG06GE70G (to H.-P.M.) is
gratefully acknowledged.
NR 27
TC 12
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U1 0
U2 9
PU INT GLACIOL SOC
PI CAMBRIDGE
PA LENSFIELD RD, CAMBRIDGE CB2 1ER, ENGLAND
SN 0022-1430
J9 J GLACIOL
JI J. Glaciol.
PY 2010
VL 56
IS 195
BP 75
EP 80
DI 10.3189/002214310791190938
PG 6
WC Geography, Physical; Geosciences, Multidisciplinary
SC Physical Geography; Geology
GA 642YK
UT WOS:000281257600008
ER
PT J
AU Wilk, JE
Thomas, JL
McGurk, DM
Riviere, LA
Castro, CA
Hoge, CW
AF Wilk, Joshua E.
Thomas, Jefftey L.
McGurk, Dennis M.
Riviere, Lyndon A.
Castro, Carl A.
Hoge, Charles W.
TI Mild Traumatic Brain Injury (Concussion) During Combat: Lack of
Association of Blast Mechanism With Persistent Postconcussive Symptoms
SO JOURNAL OF HEAD TRAUMA REHABILITATION
LA English
DT Article
DE blast injuries; concussion; mild; military personnel; postconcussive
symptoms
ID MENTAL-HEALTH PROBLEMS; IRAQ; AFGHANISTAN; CARE
AB Objective: To determine whether screening for a blast mechanism of concussion identifies individuals at higher risk of persistent postconcussive symptoms (PCS). Setting: United States Army post. Participants: 3952 US Army infantry soldiers were administered anonymous surveys 3 to 6 months after returning from a yearlong deployment to Iraq. Main Outcome Measures: Self-reported concussion (defined as an injury that resulted in being "dazed, confused, or 'seeing stars'"; "not remembering the injury"; or "losing consciousness [knocked out]): Patient Health Questionnaire 15-item scale for physical symptoms and PCS; Posttraumatic Stress Disorder Checklist; and Patient Health Questionnaire depression module. Results: Of the 587 soldiers (14.9% of the total sample) who met criteria for concussion, 201 (34.2%) reported loss of consciousness, and 373 (63.5%) reported only an alteration of consciousness without loss of consciousness; 424 (72.2%) reported a blast mechanism, and 150 (25.6%) reported a nonblast mechanism. Among soldiers who lost consciousness, blast mechanism was significantly associated with headaches and tinnitus 3 to 6 months postdeployment compared with a nonblast mechanism. However, among the larger group of soldiers reporting concussions without loss of consciousness, blast was not associated with adverse health outcomes. Conclusions: Blast mechanism of concussion was inconsistently associated with PCS, depending on the definition of concussion utilized. A self-reported history of blast mechanism was not associated with persistent PCS for the majority of US soldiers with concussions.
C1 [Wilk, Joshua E.] USA, Med Res & Mat Command, Div Psychiat & Neurosci, Walter Reed Army Inst Res,Dept Mil Psychiat, Silver Spring, MD 20910 USA.
[McGurk, Dennis M.] US Army Med Res & Mat Command, Walter Reed Army Inst Res, US Army Med Res Unit Europe, Heidelberg, Germany.
[Castro, Carl A.] USA, Med Res & Mat Command, Mil Operat Med Res Program, Ft Detrick, MD USA.
RP Wilk, JE (reprint author), USA, Med Res & Mat Command, Div Psychiat & Neurosci, Walter Reed Army Inst Res,Dept Mil Psychiat, 503 Robert Giant Ave, Silver Spring, MD 20910 USA.
EM joshua.wilk@amedd.army.mil
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TC 88
Z9 88
U1 4
U2 17
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0885-9701
J9 J HEAD TRAUMA REHAB
JI J. Head Trauma Rehabil.
PD JAN-FEB
PY 2010
VL 25
IS 1
BP 9
EP 14
PG 6
WC Clinical Neurology; Rehabilitation
SC Neurosciences & Neurology; Rehabilitation
GA 550XC
UT WOS:000274165800002
PM 20051900
ER
PT J
AU Harrison, S
Hamzeh, FM
Lentz, E
Vierling, JM
AF Harrison, S.
Hamzeh, F. M.
Lentz, E.
Vierling, J. M.
TI VIROLOGIC AND METABOLIC RESPONSES IN CHRONIC HEPATITIS C (CHC) PATIENTS
WITH INSULIN RESISTANCE (IR) TREATED WITH PIOGLITAZONE AND PEGINTERFERON
ALFA-2A PLUS RIBAVIRIN
SO JOURNAL OF HEPATOLOGY
LA English
DT Meeting Abstract
CT 45th Annual Meeting of the
European-Association-for-the-Study-of-the-Liver
CY APR 14-18, 2010
CL Vienna, AUSTRIA
SP European Assoc Study Liver
C1 [Harrison, S.] Brooke Army Med Ctr, Div Gastroenterol & Hepatol, Houston, TX USA.
[Hamzeh, F. M.; Lentz, E.] Genentech Inc, Genentech US Med Affairs, San Francisco, CA 94080 USA.
[Vierling, J. M.] Baylor Coll Med, Baylor Liver Hlth, Houston, TX 77030 USA.
EM vierling@bcm.tmc.edu
NR 0
TC 5
Z9 5
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-8278
J9 J HEPATOL
JI J. Hepatol.
PY 2010
VL 52
SU 1
BP S129
EP S129
PG 1
WC Gastroenterology & Hepatology
SC Gastroenterology & Hepatology
GA 587UE
UT WOS:000277018000309
ER
PT J
AU Harrison, SA
Shiffman, ML
Rodriguez-Torres, M
Abdurakhmanov, D
Silva, GF
Stanciu, C
Mazur, W
Feinman, SV
Moreno, C
McKenna, M
Messinger, D
Teitz, A
Reddy, KR
AF Harrison, S. A.
Shiffman, M. L.
Rodriguez-Torres, M.
Abdurakhmanov, D.
Silva, G. F.
Stanciu, C.
Mazur, W.
Feinman, S. V.
Moreno, C.
McKenna, M.
Messinger, D.
Teitz, A.
Reddy, K. R.
CA PROGRESS Study Investigators
TI INTENSIFIED DOSES OF PEGINTERFERON ALFA-2A AND/OR RIBAVIRIN ARE
ASSOCIATED WITH HIGHER RATES OF SVR AND LOWER RELAPSE RATES AMONG
PATIENTS WITH METABOLIC SYNDROME
SO JOURNAL OF HEPATOLOGY
LA English
DT Meeting Abstract
CT 45th Annual Meeting of the
European-Association-for-the-Study-of-the-Liver
CY APR 14-18, 2010
CL Vienna, AUSTRIA
SP European Assoc Study Liver
C1 [Harrison, S. A.] Brooke Army Med Ctr, Houston, TX USA.
[Shiffman, M. L.] Bon Secours Hlth Syst, Liver Inst Virginia, Newport News, VA USA.
[Rodriguez-Torres, M.] Fdn Invest Diego Santurce, Santurce, PR USA.
[Abdurakhmanov, D.] Moscow Med Acad, Moscow, Russia.
[Silva, G. F.] Botucatu Sch Med, Botucatu, SP, Brazil.
[Stanciu, C.] Gastroenterol & Hepatol Inst, Iasi, Romania.
[Mazur, W.] Med Univ Silesia, Chorzow, Poland.
[Feinman, S. V.] Mt Sinai Hosp, Toronto, ON M5G 1X5, Canada.
[Moreno, C.] Univ Libre Bruxelles, Erasme Hosp, Brussels, Belgium.
[Messinger, D.] IST GmbH, Mannheim, Germany.
[Teitz, A.] Roche, Basel, Switzerland.
[Reddy, K. R.] Hosp Univ Penn, Philadelphia, PA 19104 USA.
[McKenna, M.] Roche, Welwyn Garden City, England.
EM stephen.a.harrison@us.army.mil
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-8278
J9 J HEPATOL
JI J. Hepatol.
PY 2010
VL 52
SU 1
BP S111
EP S111
PG 1
WC Gastroenterology & Hepatology
SC Gastroenterology & Hepatology
GA 587UE
UT WOS:000277018000265
ER
PT J
AU Reddy, KR
Shiffman, ML
Rodriguez-Torres, M
Bakulin, I
Cheinquer, H
Horban, A
El-Kashab, M
Gheohge, L
Buggisch, P
Rabbia, M
McKenna, M
Harrison, SA
AF Reddy, K. R.
Shiffman, M. L.
Rodriguez-Torres, M.
Bakulin, I.
Cheinquer, H.
Horban, A.
El-Kashab, M.
Gheohge, L.
Buggisch, P.
Rabbia, M.
McKenna, M.
Harrison, S. A.
CA PROGRESS Study Investigators
TI PREDICTORS OF RELAPSE AMONG PATIENTS TREATED WITH STANDARD OR INDUCTION
DOSE PEGINTERFERON ALFA-2A (40KD) COMBINED WITH STANDARD OR HIGHER DOSE
RIBAVIRIN IN DIFFICULT-TO-CURE PATIENTS
SO JOURNAL OF HEPATOLOGY
LA English
DT Meeting Abstract
CT 45th Annual Meeting of the
European-Association-for-the-Study-of-the-Liver
CY APR 14-18, 2010
CL Vienna, AUSTRIA
SP European Assoc Study Liver
C1 [Reddy, K. R.] Hosp Univ Penn, Philadelphia, PA 19104 USA.
[Shiffman, M. L.] Bon Secours Hlth Syst, Liver Inst Virginia, Newport News, VA USA.
[Rodriguez-Torres, M.] Puerto Rico & Ponce Sch Med, Fdn Invest Diego Santurce, Santurce, PR USA.
[Bakulin, I.] Minist Def Russian Federat, State Postgrad Med Inst, Moscow, Russia.
[Cheinquer, H.] Hosp Clin Porto Alegre, Porto Alegre, Brazil.
[Horban, A.] Med Univ, Clin Infect Dis, Warsaw, Poland.
[Gheohge, L.] Fundeni Clin Inst, Bucharest, Romania.
[El-Kashab, M.] Toronto Liver Ctr, Toronto, ON, Canada.
[Buggisch, P.] Univ Med Ctr Hamburg Eppendorf, Hamburg, Germany.
[Rabbia, M.] Roche, Nutley, NJ USA.
[Harrison, S. A.] Brooke Army Med Ctr, Houston, TX USA.
EM rajender.reddy@uphs.upenn.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-8278
J9 J HEPATOL
JI J. Hepatol.
PY 2010
VL 52
SU 1
BP S123
EP S123
PG 1
WC Gastroenterology & Hepatology
SC Gastroenterology & Hepatology
GA 587UE
UT WOS:000277018000294
ER
PT J
AU Reddy, KR
Shiffman, ML
Rodriguez-Torres, M
Abdurakhmanov, D
Bakulin, I
Silva, GF
Cheinquer, H
Rabbia, M
McKenna, M
Tietz, A
Harrison, SA
AF Reddy, K. R.
Shiffman, M. L.
Rodriguez-Torres, M.
Abdurakhmanov, D.
Bakulin, I.
Silva, G. F.
Cheinquer, H.
Rabbia, M.
McKenna, M.
Tietz, A.
Harrison, S. A.
CA PROGRESS Study Investigators
TI IMPACT OF HIGHER DOSES OF PEGINTERFERON ALFA-2A AND RIBAVIRIN ON RVR,
CEVR AND SVR IN HCV G1 PATIENTS WITH VIRAL LOADS >= 400,000 IU/ML
WEIGHING >= 85 kg
SO JOURNAL OF HEPATOLOGY
LA English
DT Meeting Abstract
CT 45th Annual Meeting of the
European-Association-for-the-Study-of-the-Liver
CY APR 14-18, 2010
CL Vienna, AUSTRIA
SP European Assoc Study Liver
C1 [Reddy, K. R.] Hosp Univ Penn, Philadelphia, PA 19104 USA.
[Shiffman, M. L.] Bon Secours Hlth Syst, Liver Inst Virginia, Newport News, VA USA.
[Rodriguez-Torres, M.] Fdn Invest De Diego Santurce, Santurce, PR, Brazil.
[Abdurakhmanov, D.] Moscow Med Acad, Moscow, Russia.
[Bakulin, I.] Minist Def Russian Federat, State Postgrad Med Inst, Moscow, Russia.
[Silva, G. F.] Botucatu Sch Med, Botucatu, SP, Brazil.
[Cheinquer, H.] Hosp Clin Porto Alegre, Porto Alegre, Brazil.
[Rabbia, M.] Roche, Nutley, NJ USA.
[Tietz, A.] Roche, Basel, Switzerland.
[Harrison, S. A.] Brooke Army Med Ctr, Houston, TX USA.
EM rajender.reddy@uphs.upenn.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-8278
J9 J HEPATOL
JI J. Hepatol.
PY 2010
VL 52
SU 1
BP S122
EP S122
PG 1
WC Gastroenterology & Hepatology
SC Gastroenterology & Hepatology
GA 587UE
UT WOS:000277018000293
ER
PT J
AU Sulkowski, MS
King, JW
Harrison, SA
Rossaro, L
Hu, KQ
Lawitz, EJ
Schiffman, ML
Muir, AJ
Galler, GW
McCone, J
Nyberg, LM
Lee, WM
Ghalib, R
McHutchison, JG
Noviello, S
Goteti, VS
Albrecht, JK
Brass, CA
AF Sulkowski, M. S.
King, J. W.
Harrison, S. A.
Rossaro, L.
Hu, K. -Q.
Lawitz, E. J.
Schiffman, M. L.
Muir, A. J.
Galler, G. W.
McCone, J.
Nyberg, L. M.
Lee, W. M.
Ghalib, R.
McHutchison, J. G.
Noviello, S.
Goteti, V. S.
Albrecht, J. K.
Brass, C. A.
TI METABOLIC SYNDROME (MS) IS A NEGATIVE PREDICTOR OF TREATMENT OUTCOME IN
PATIENTS WITH CHRONIC HEPATITIS C: RESULTS FROM THE IDEAL STUDY
SO JOURNAL OF HEPATOLOGY
LA English
DT Meeting Abstract
CT 45th Annual Meeting of the
European-Association-for-the-Study-of-the-Liver
CY APR 14-18, 2010
CL Vienna, AUSTRIA
SP European Assoc Study Liver
C1 [Sulkowski, M. S.] Johns Hopkins Univ, Sch Med, Viral Hepatitis Ctr, Baltimore, MD USA.
[King, J. W.] Louisiana State Univ, Hlth Sci Ctr, Shreveport, LA 71105 USA.
[Harrison, S. A.] Brooke Army Med Ctr, Ft Sam Houston, TX 78234 USA.
[Rossaro, L.] Univ Calif Davis, Med Ctr, Sacramento, CA 95817 USA.
[Hu, K. -Q.] Univ Calif Irvine, Med Ctr, Irvine, CA USA.
[Lawitz, E. J.] Alamo Med Res, San Antonio, TX USA.
[Schiffman, M. L.] Liver Inst Virginia, Bon Secours Hlth Syst, Newport News, VA USA.
[Muir, A. J.; McHutchison, J. G.] Duke Clin Res Inst, Durham, NC USA.
[Galler, G. W.] Kelsey Seybold Res Fdn, Houston, TX USA.
[McCone, J.; Nyberg, L. M.] So Calif Permanente Med Grp, San Diego, CA 92120 USA.
[Lee, W. M.] Univ Texas SW Med Ctr Dallas, Dallas, TX 75390 USA.
[Ghalib, R.] Liver Inst Methodist, Dallas, TX USA.
[Noviello, S.; Goteti, V. S.; Albrecht, J. K.; Brass, C. A.] Merck & Co Inc, Schering Corp Div, Kenilworth, NJ USA.
EM msulkowski@jhmi.edu
NR 0
TC 0
Z9 0
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-8278
J9 J HEPATOL
JI J. Hepatol.
PY 2010
VL 52
SU 1
BP S127
EP S128
PG 2
WC Gastroenterology & Hepatology
SC Gastroenterology & Hepatology
GA 587UE
UT WOS:000277018000305
ER
PT J
AU Smith, E
AF Smith, Eugene
TI Terrorism, Security and the Power of Informal Networks.
SO JOURNAL OF HOMELAND SECURITY AND EMERGENCY MANAGEMENT
LA English
DT Book Review
C1 [Smith, Eugene] USA, Installat Management Command Pacific, Ft Shafter, HI 96858 USA.
RP Smith, E (reprint author), USA, Installat Management Command Pacific, Ft Shafter, HI 96858 USA.
NR 1
TC 0
Z9 0
U1 0
U2 1
PU BERKELEY ELECTRONIC PRESS
PI BERKELEY
PA 2809 TELEGRAPH AVENUE, STE 202, BERKELEY, CA 94705 USA
SN 1547-7355
J9 J HOMEL SECUR EMERG
JI J. Homel. Secur. Emerg. Manag.
PY 2010
VL 7
IS 1
AR 73
PG 3
WC Public Administration
SC Public Administration
GA 701ON
UT WOS:000285829800005
ER
PT J
AU Smith, EB
AF Smith, Eugene B.
TI The New Global Insecurity: How Terrorism, Environmental Collapse,
Economic Inequalities and Resource Shortages Are Changing Our World.
SO JOURNAL OF HOMELAND SECURITY AND EMERGENCY MANAGEMENT
LA English
DT Book Review
C1 [Smith, Eugene B.] USA, Ft Shafter, HI 96858 USA.
[Smith, Eugene B.] Installat Management Command Pacific, Ft Shafter, HI 96858 USA.
RP Smith, EB (reprint author), USA, Ft Shafter, HI 96858 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU BERKELEY ELECTRONIC PRESS
PI BERKELEY
PA 2809 TELEGRAPH AVENUE, STE 202, BERKELEY, CA 94705 USA
SN 1547-7355
J9 J HOMEL SECUR EMERG
JI J. Homel. Secur. Emerg. Manag.
PY 2010
VL 7
IS 1
AR 31
PG 3
WC Public Administration
SC Public Administration
GA 604NB
UT WOS:000278284600010
ER
PT J
AU Terra, JK
Cote, CK
France, B
Jenkins, AL
Bozue, JA
Welkos, SL
LeVine, SM
Bradley, KA
AF Terra, Jill K.
Cote, Christopher K.
France, Bryan
Jenkins, Amy L.
Bozue, Joel A.
Welkos, Susan L.
LeVine, Steven M.
Bradley, Kenneth A.
TI Cutting Edge: Resistance to Bacillus anthracis Infection Mediated by a
Lethal Toxin Sensitive Allele of Nalp1b/Nlrp1b
SO JOURNAL OF IMMUNOLOGY
LA English
DT Article
ID FULLY VIRULENT; STERNE STRAIN; MICE; MACROPHAGES; SUSCEPTIBILITY;
SPORES; IL-1-BETA; MODEL
AB Pathogenesis of Bacillus anthracis is associated with the production of lethal toxin (LT), which activates the murine Nalp1b/Nlrp1b inflammasome and induces caspase-1-dependent pyroptotic death in macrophages and dendritic cells. In this study, we investigated the effect of allelic variation of Nlrp1b on the outcome of LT challenge and infection by B. anthracis spores. Nlrp1b allelic variation did not alter the kinetics or pathology of end-stage disease induced by purified LT, suggesting that, in contrast to previous reports, macrophage lysis does not contribute directly to LT-mediated pathology. However, animals expressing a LT-sensitive allele of Nlrp1b showed an early inflammatory response to LT and increased resistance to infection by B. anthracis. Data presented here support a model whereby LT-mediated activation of Nlrp1b and subsequent lysis of macrophages is not a mechanism used by B. anthracis to promote virulence, but rather a protective host-mediated innate immune response. The Journal of Immunology, 2010, 184: 17-20.
C1 [Terra, Jill K.; France, Bryan; Bradley, Kenneth A.] Univ Calif Los Angeles, Dept Microbiol Immunol & Mol Genet, Los Angeles, CA 90095 USA.
[Cote, Christopher K.; Jenkins, Amy L.; Bozue, Joel A.; Welkos, Susan L.] USA, Bacteriol Div, Med Res Inst Infect Dis, Frederick, MD 21702 USA.
[LeVine, Steven M.] Univ Kansas, Med Ctr, Dept Mol & Integrat Physiol, Kansas City, KS 66160 USA.
[Bradley, Kenneth A.] Calif NanoSyst Inst, Los Angeles, CA 90095 USA.
RP Bradley, KA (reprint author), Univ Calif Los Angeles, Dept Microbiol Immunol & Mol Genet, 609 Charles E Young Dr E, Los Angeles, CA 90095 USA.
EM kbradley@microbio.ucla.edu
FU University of California, Los Angeles; Microbial Pathogenesis Training
Grant [T32-AI007323]; National Institutes of Health [AI077791]; Joint
Science and Technology Office for Chemical and Biological
Defense/Defense Threat Reduction Agency [1.1A0010-07-RDB]
FX This research was supported by the University of California, Los
Angeles, Microbial Pathogenesis Training Grant T32-AI007323 (to J.K.T.),
National Institutes of Health Grant AI077791 (to K.A.B. and S.M.L.), and
the Joint Science and Technology Office for Chemical and Biological
Defense/Defense Threat Reduction Agency project 1.1A0010-07-RDB (to
S.L.W.).
NR 26
TC 80
Z9 83
U1 0
U2 4
PU AMER ASSOC IMMUNOLOGISTS
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 USA
SN 0022-1767
J9 J IMMUNOL
JI J. Immunol.
PD JAN 1
PY 2010
VL 184
IS 1
BP 17
EP 20
DI 10.4049/jimmunol.0903114
PG 4
WC Immunology
SC Immunology
GA 535QL
UT WOS:000272985300004
PM 19949100
ER
PT J
AU Bradfute, SB
Swanson, PE
Smith, MA
Watanabe, E
McDunn, JE
Hotchkiss, RS
Bavari, S
AF Bradfute, Steven B.
Swanson, Paul E.
Smith, Mark A.
Watanabe, Eizo
McDunn, Jonathan E.
Hotchkiss, Richard S.
Bavari, Sina
TI Mechanisms and Consequences of Ebolavirus-Induced Lymphocyte Apoptosis
SO JOURNAL OF IMMUNOLOGY
LA English
DT Article
ID T-CELL RESPONSES; VIRUS-INFECTION; HEMORRHAGIC-FEVER; MOUSE MODEL;
CYNOMOLGUS MACAQUES; VIRAL-INFECTIONS; DENDRITIC CELLS; MARBURG VIRUSES;
TRANSGENIC MICE; IN-VITRO
AB Ebolavirus (EBOV) is a member of the filovirus family and causes severe hemorrhagic fever, resulting in death in up to 90% of infected humans. EBOV infection induces massive bystander lymphocyte apoptosis; however, neither the cellular apoptotic pathway (s) nor the systemic implications of lymphocyte apoptosis in EBOV infection are known. In this study, we show data suggesting that EBOV-induced lymphocyte apoptosis in vivo occurs via both the death receptor (extrinsic) and mitochondrial (intrinsic) pathways, as both Fas-associated death domain dominant negative transgenic mice and mice overexpressing bcl-2 were resistant to EBOV-induced lymphocyte apoptosis. Surprisingly, inhibiting lymphocyte apoptosis during EBOV infection did not result in improved animal survival. Furthermore, we show for the first time that hepatocyte apoptosis likely occurs in EBOV infection, and that mice lacking the proapoptotic genes Bint and Bid had reduced hepatocyte apoptosis and liver enzyme levels postinfection. Collectively, these data suggest that EBOV induces multiple proapoptotic stimuli and that blocking lymphocyte apoptosis is not sufficient to improve survival in EBOV infection. These data suggest that hepatocyte apoptosis may play a role in the pathogenesis of EBOV infection, whereas lymphocyte apoptosis appears to be nonessential for EBOV disease progression. The Journal of Immunology, 2010, 184: 327-335.
C1 [Bradfute, Steven B.; Smith, Mark A.; Bavari, Sina] USA, Med Res Inst Infect Dis, Ft Detrick, MD 21702 USA.
[Swanson, Paul E.] Univ Washington, Sch Med, Dept Pathol, Seattle, WA 98195 USA.
[Watanabe, Eizo; McDunn, Jonathan E.; Hotchkiss, Richard S.] Washington Univ, Dept Anesthesiol, Sch Med, St Louis, MO 63110 USA.
RP Bavari, S (reprint author), USA, Med Res Inst Infect Dis, 1425 Porter St, Ft Detrick, MD 21702 USA.
EM hotch@wustl.edu; sina.bavari@amedd.army.mil
OI McDunn, Jonathan/0000-0001-8792-828X
FU U.S. Army Medical Research Institute for Infectious Disease administered
by the Oak Ridge Institute for Science and Education through an
interagency agreement between the U.S. Department of Energy; U.S. Army
Medical Research and Materiel Command; Defense Threat Reduction Agency
[1-06-C-0037, 4.1002209RDB]
FX This research was supported in part by an appointment to the
Postgraduate Research Participation Program at the U.S. Army Medical
Research Institute for Infectious Disease administered by the Oak Ridge
Institute for Science and Education through an interagency agreement
between the U.S. Department of Energy and U.S. Army Medical Research and
Materiel Command (to S.B.B.). This research was supported in part by
Defense Threat Reduction Agency Grants 1-06-C-0037 (to R.S.H.) and
4.1002209RDB (to S.B.).
NR 51
TC 30
Z9 30
U1 0
U2 3
PU AMER ASSOC IMMUNOLOGISTS
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 USA
SN 0022-1767
J9 J IMMUNOL
JI J. Immunol.
PD JAN 1
PY 2010
VL 184
IS 1
BP 327
EP 335
DI 10.4049/jimmunol.0901231
PG 9
WC Immunology
SC Immunology
GA 535QL
UT WOS:000272985300037
PM 20028660
ER
PT J
AU Garcia, R
Barnes, L
AF Garcia, Richard
Barnes, Laura
TI Multi-UAV Simulator Utilizing X-Plane
SO JOURNAL OF INTELLIGENT & ROBOTIC SYSTEMS
LA English
DT Article
DE Unmanned air vehicles; Simulator; X-Plane
AB This paper describes the development of a simulator for multiple Unmanned Aerial Vehicles (UAVs) utilizing the commercially available simulator X-Plane and Matlab. Coordinated control of unmanned systems is currently being researched for a wide range of applications, including search and rescue, convoy protection, and building clearing to name a few. Although coordination and control of Unmanned Ground Vehicles (UGVs) has been a heavily researched area, the extension towards controlling multiple UAVs has seen minimal attention. This lack of development is due to numerous issues including the difficulty in realistically modeling and simulating multiple UAVs. This work attempts to overcome these limitations by creating an environment that can simultaneously simulate multiple air vehicles as well as provide state data and control input for the individual vehicles using a heavily developed and commercially available flight simulator (X-Plane). This framework will allow researchers to study multi-UAV control algorithms using realistic unmanned and manned aircraft models in real-world modeled environments. Validation of the system's ability is shown through the demonstration of formation control algorithms implemented on four UAV helicopters with formation and navigation controllers built in Matlab/Simulink.
C1 [Garcia, Richard] USA, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
[Barnes, Laura] Univ Texas Arlington, Automat & Robot Res Inst, Arlington, TX 76019 USA.
RP Garcia, R (reprint author), USA, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
EM richard.d.garcia@arl.army.mil
NR 16
TC 21
Z9 21
U1 2
U2 23
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0921-0296
J9 J INTELL ROBOT SYST
JI J. Intell. Robot. Syst.
PD JAN
PY 2010
VL 57
IS 1-4
SI SI
BP 393
EP 406
DI 10.1007/s10846-009-9372-4
PG 14
WC Computer Science, Artificial Intelligence; Robotics
SC Computer Science; Robotics
GA 527IM
UT WOS:000272360700020
ER
PT J
AU Li, LA
Wang, YP
Yan, FD
Samuelson, LA
Kumar, J
AF Li, Lian
Wang, Yanping
Yan, Fadong
Samuelson, Lynne A.
Kumar, Jayant
TI Photosensitized Solid-state Polymerization of Diacetylenes in Nanoporous
TiO2 Structures
SO JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
LA English
DT Article; Proceedings Paper
CT 10th Technical Symposium on Sukant Tripathy Annual Memorial
CY DEC 04, 2009
CL Lowell, MA
DE Polydiacetylene; nanocomposite; photosensitization; TiO2 structures
ID SENSITIZED SOLAR-CELLS; IN-SITU POLYMERIZATION; CONJUGATED POLYMERS;
THIN-FILM; LOW-COST; PHOTOCATALYSIS; FABRICATION; INITIATION; PHENAZINE;
CRYSTAL
AB In situ topochemical polymerization of two diacetylene monomers within nanoporous TiO2 thin films was carried out under visible light irradiation. One of the monomers used contains a carboxylic acid group, which could help to link the monomer onto the TiO2 surface covalently. UV-Vis absorption and Raman studies showed that both monomers were successfully photopolymerized. These results suggest that the covalent linkage of the diacetylene to the nanoparticle through the carboxylic acid group is not needed. Since photopolymerization of diacetylene is typically induced by excitation of the monomer at 300 nm, the observed red shift of the photopolymerization wavelength is attributed to the photosensitization effect of TiO2. The morphological study of the polydiacetylene/TiO2 nanocomposite revealed that the diacetylene monomers were polymerized in the vicinity of the TiO2 nanoparticles. This is attributed to the fact that the electron-transfer process occurs at the interface of nanocrystalline TiO2 (nc-TiO2) and the diacetylene monomer and the polymerization is expected to be initiated near the nc-TiO2 surface. Photopolymerization of the carboxylated diacetylene monomer with other oxides nanoparticles, such as ZnO and SiO2 was also investigated.
C1 [Wang, Yanping; Yan, Fadong; Kumar, Jayant] Univ Massachusetts, Ctr Adv Mat, Lowell, MA 01854 USA.
[Li, Lian; Samuelson, Lynne A.] US Army Natick Soldier Res, Ctr Dev & Engn, Natick, MA 01760 USA.
RP Kumar, J (reprint author), Univ Massachusetts, Ctr Adv Mat, Lowell, MA 01854 USA.
EM Jayant_Kumar@uml.edu
NR 34
TC 2
Z9 3
U1 3
U2 18
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1060-1325
J9 J MACROMOL SCI A
JI J. Macromol. Sci. Part A-Pure Appl. Chem.
PY 2010
VL 47
IS 12
BP 1161
EP 1166
AR PII 927980507
DI 10.1080/10601325.2010.518813
PG 6
WC Polymer Science
SC Polymer Science
GA 664OQ
UT WOS:000282972000004
ER
PT J
AU Satapathi, S
Yan, FD
Anandakathir, R
Yang, K
Li, LA
Mosurkal, R
Samuelson, LA
Kumar, J
AF Satapathi, Soumitra
Yan, Fadong
Anandakathir, Robinson
Yang, Ke
Li, Lian
Mosurkal, Ravi
Samuelson, Lynne A.
Kumar, Jayant
TI Fabrication of Dye-sensitized Solar Cells and Fluorescence Quenching
Study Using Thiophene Based Copolymers
SO JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
LA English
DT Article; Proceedings Paper
CT 10th Technical Symposium on Sukant Tripathy Annual Memorial
CY DEC 04, 2009
CL Lowell, MA
DE Thiophene copolymers; fluorescence quenching; solar cells; IPCE
ID NANOCRYSTALLINE TIO2; PHOTOVOLTAIC CELLS; LIGHT
AB Photovoltaic performance of dye sensitized solar cells fabricated with a commercially available thiophene based copolymer was investigated. Poly[(9,9-dioctylfluorenyl-2,7-diyl)-co-(bithiophene)], a highly soluble polythiophene, was used as a sensitizer. An open-circuit voltage of 0.64 V and a short-circuit current density of 0.36 mA/cm2 were measured. The incident photon to current conversion efficiency for the polymer was measured. Fluorescence from the other polythiophene, poly(3,3'-didodecyl quarter thiophene) was found to be quenched when blended with phenyl C61 butyric acid methyl ester (PCBM) (1:1 wt ratio), indicating the charge transfer from the conjugated polymer to PCBM.
C1 [Satapathi, Soumitra; Yan, Fadong; Anandakathir, Robinson; Yang, Ke; Kumar, Jayant] Univ Massachusetts, Ctr Adv Mat, Lowell, MA 01854 USA.
[Satapathi, Soumitra; Yan, Fadong; Yang, Ke; Kumar, Jayant] Univ Massachusetts, Dept Phys, Lowell, MA 01854 USA.
[Li, Lian; Mosurkal, Ravi; Samuelson, Lynne A.] US Army Natick Solider Res, Ctr Dev & Engn, Natick, MA USA.
RP Kumar, J (reprint author), Univ Massachusetts, Ctr Adv Mat, Lowell, MA 01854 USA.
EM Jayant_Kumar@uml.edu
RI MOSURKAL, RAVI/P-6981-2015
NR 13
TC 5
Z9 5
U1 0
U2 4
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1060-1325
J9 J MACROMOL SCI A
JI J. Macromol. Sci. Part A-Pure Appl. Chem.
PY 2010
VL 47
IS 12
BP 1180
EP 1183
AR PII 927985438
DI 10.1080/10601325.2010.518864
PG 4
WC Polymer Science
SC Polymer Science
GA 664OQ
UT WOS:000282972000008
ER
PT J
AU Bruno, FF
Trotta, A
Fossey, S
Nagarajan, S
Nagarajan, R
Samuelson, LA
Kumar, J
AF Bruno, Ferdinando F.
Trotta, Adam
Fossey, Stephen
Nagarajan, Subhalakshmi
Nagarajan, Ramaswamy
Samuelson, Lynne A.
Kumar, Jayant
TI Enzymatic Synthesis and Characterization of PolyQuercetin
SO JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
LA English
DT Article; Proceedings Paper
CT 10th Technical Symposium on Sukant Tripathy Annual Memorial
CY DEC 04, 2009
CL Lowell, MA
DE Quercetin; Green Chemistry; enzymatic polymerization; horseradish
peroxidase
ID RED WINE; FLAVONOID QUERCETIN; MAMMARY-CANCER; FRENCH PARADOX; POLYMERS;
POLYMERIZATION; INHIBITION; POLYPHENOLS; OXIDATION; LACCASE
AB Quercetin is a flavonol found in fruits, onions and wine. Recently, quercetin has been extensively investigated for its antioxidant behavior in food such as poultry and fish. While quercetin has been shown to be a good stabilizer for several oils, the thermal stability and solubility at neutral and slightly alkaline conditions continue to be an area of huge concern. However, increasing the stability and the antioxidant potency of this flavonol would be beneficial to the food industry. We utilized horseradish peroxidase, a phytochemical enzyme, to polymerize quercetin in biocompatible water/ethanol mixtures. This unique, one pot procedure has provided a method to synthesize polyquercetin under mild conditions. The final polymer is soluble in a water/ethanol mixture. Preliminary data were presented in the Material Research Society fall meeting in Boston on December 3, 2008. However, in this article, enzymatically synthesized polyquercetin has also been characterized by a variety of techniques. Using UV-Vis FTIR, GPC, NMR and TGA we have deduced certain aspects of the structure. Structural elucidation was further refined by results from molecular modeling. Density functional theory calculations predict that the UV-Vis spectra of polyquercetin can show high conjugation relative to those of quercetin monomer. This was confirmed by the experimental results. This novel thermally stable polymer, synthesized using Green Chemistry principles, can be used as a potent antioxidant in the highly regulated food industry.
C1 [Bruno, Ferdinando F.; Fossey, Stephen; Samuelson, Lynne A.] US Army Natick Soldier Res, Dev & Engn Ctr RDECOM, Natick, MA 01854 USA.
[Trotta, Adam; Nagarajan, Subhalakshmi] Univ Massachusetts, Dept Chem, Lowell, MA USA.
[Kumar, Jayant] Univ Massachusetts, Ctr Adv Mat, Lowell, MA USA.
RP Bruno, FF (reprint author), US Army Natick Soldier Res, Dev & Engn Ctr RDECOM, Natick, MA 01854 USA.
EM Ferdinando_Bruno@uml.edu
RI Trotta, Adam/G-5208-2011
OI Trotta, Adam/0000-0001-9108-9917
NR 36
TC 11
Z9 12
U1 1
U2 18
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1060-1325
J9 J MACROMOL SCI A
JI J. Macromol. Sci. Part A-Pure Appl. Chem.
PY 2010
VL 47
IS 12
BP 1191
EP 1196
AR PII 927980236
DI 10.1080/10601325.2010.518839
PG 6
WC Polymer Science
SC Polymer Science
GA 664OQ
UT WOS:000282972000010
ER
PT J
AU Johnson, SH
Johnson, CL
May, SJ
Hirsch, S
Cole, MW
Spanier, JE
AF Johnson, Stephanie H.
Johnson, Craig L.
May, Steven J.
Hirsch, Samuel
Cole, M. W.
Spanier, Jonathan E.
TI Co@CoO@Au core-multi-shell nanocrystals
SO JOURNAL OF MATERIALS CHEMISTRY
LA English
DT Article
ID MAGNETIC-PROPERTIES; GOLD NANOPARTICLES; EXCHANGE BIAS; FE OXIDE;
COBALT; PHASE; COALESCENCE; GROWTH; SHAPE; RAMAN
AB We report on the chemical synthesis, structural and compositional characterization, and hierarchical organization of Co-core, concentric CoO-Au multi-shell nanocrystals (Co@CoO@Au). Based on electron microscopy, magnetometry and spectroscopy experiments, we present compelling evidence for the formation of the Au outer shell on CoO, challenging the common assumption that the reduction reaction to form Au shells can only occur if the cobalt surface has not oxidized. Our findings suggest that the presence of a metal shell surrounding a transition-metal core nanocrystal following such a reduction reaction cannot be taken as evidence that the transition metal oxide is absent from the surface of the nanocrystal core. We find that Au shell growth can produce Co@CoO@Au nanocrystals possessing five-fold twinning symmetry and we suggest that their growth is facilitated through self nucleation and coalescence of Au particles.
C1 [Johnson, Stephanie H.; Johnson, Craig L.; May, Steven J.; Spanier, Jonathan E.] Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA.
[Hirsch, Samuel; Cole, M. W.] USA, Res Lab, Aberdeen Proving Ground, MD USA.
[May, Steven J.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Johnson, SH (reprint author), Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA.
RI May, Steven/D-8563-2011;
OI May, Steven/0000-0002-8097-1549; Spanier, Jonathan/0000-0002-3096-2644
FU GAANN Fellowship in Material Science at Drexel University; U.S. Army
Research Office [W911-NF-08-1-0067]
FX The authors thank Peter Finkel for assistance with additional magnetic
measurements and Zhorro Nikolov and Dominic Bruzzese for collecting
Raman scattering spectra. We would also like to thank Fredrick Beyer for
helping coordinate access to the JEOL 2100F at ARL-APG. S.H.J. is
supported by a GAANN Fellowship in Material Science at Drexel
University. J.E.S. gratefully acknowledges the U.S. Army Research Office
for support under W911-NF-08-1-0067.
NR 28
TC 12
Z9 12
U1 2
U2 30
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 0959-9428
J9 J MATER CHEM
JI J. Mater. Chem.
PY 2010
VL 20
IS 3
BP 439
EP 443
DI 10.1039/b919610b
PG 5
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA 536IL
UT WOS:000273038000004
ER
PT J
AU Maass, JR
AF Maass, John R.
TI Long, Obstinate, and Bloody: The Battle of Guilford Courthouse.
SO JOURNAL OF MILITARY HISTORY
LA English
DT Book Review
C1 [Maass, John R.] USA, Ctr Mil Hist, Washington, DC 20310 USA.
RP Maass, JR (reprint author), USA, Ctr Mil Hist, Washington, DC 20310 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU SOC MILITARY HISTORY
PI LEXINGTON
PA C/O VIRGINIA MILITARY INST, GEORGE C MARSHALL LIBRARY, LEXINGTON, VA
24450-1600 USA
SN 0899-3718
J9 J MILITARY HIST
JI J. Mil. Hist.
PD JAN
PY 2010
VL 74
IS 1
BP 227
EP 228
PG 2
WC History
SC History
GA 543OP
UT WOS:000273588300024
ER
PT J
AU Epstein, RM
AF Epstein, Robert M.
TI Napoleon's Apogee: Pascal Bressonnet's Tactical Studies 1806. Saalfeld,
Jena and Auerstadt
SO JOURNAL OF MILITARY HISTORY
LA English
DT Book Review
C1 [Epstein, Robert M.] USA, Sch Adv Mil Studies, Ft Leavenworth, KS USA.
RP Epstein, RM (reprint author), USA, Sch Adv Mil Studies, Ft Leavenworth, KS USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU SOC MILITARY HISTORY
PI LEXINGTON
PA C/O VIRGINIA MILITARY INST, GEORGE C MARSHALL LIBRARY, LEXINGTON, VA
24450-1600 USA
SN 0899-3718
J9 J MILITARY HIST
JI J. Mil. Hist.
PD JAN
PY 2010
VL 74
IS 1
BP 233
EP 234
PG 2
WC History
SC History
GA 543OP
UT WOS:000273588300028
ER
PT J
AU Epley, WW
AF Epley, William W.
TI The 7th Infantry Regiment, Combat in an Age of Terror-the Korean War
through the Present
SO JOURNAL OF MILITARY HISTORY
LA English
DT Book Review
C1 [Epley, William W.] USA, Ctr Mil Hist, Washington, DC 20310 USA.
RP Epley, WW (reprint author), USA, Ctr Mil Hist, Washington, DC 20310 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU SOC MILITARY HISTORY
PI LEXINGTON
PA C/O VIRGINIA MILITARY INST, GEORGE C MARSHALL LIBRARY, LEXINGTON, VA
24450-1600 USA
SN 0899-3718
J9 J MILITARY HIST
JI J. Mil. Hist.
PD JAN
PY 2010
VL 74
IS 1
BP 237
EP 238
PG 2
WC History
SC History
GA 543OP
UT WOS:000273588300031
ER
PT J
AU Beckenbaugh, T
AF Beckenbaugh, Terry
TI Unfurl Those Colors! McClellan, Sumner, & The Second Army Corps in the
Antietam Campaign
SO JOURNAL OF MILITARY HISTORY
LA English
DT Book Review
C1 [Beckenbaugh, Terry] USA, Command & Gen Staff Coll, Ft Leavenworth, KS USA.
RP Beckenbaugh, T (reprint author), USA, Command & Gen Staff Coll, Ft Leavenworth, KS USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU SOC MILITARY HISTORY
PI LEXINGTON
PA C/O VIRGINIA MILITARY INST, GEORGE C MARSHALL LIBRARY, LEXINGTON, VA
24450-1600 USA
SN 0899-3718
J9 J MILITARY HIST
JI J. Mil. Hist.
PD JAN
PY 2010
VL 74
IS 1
BP 248
EP 249
PG 2
WC History
SC History
GA 543OP
UT WOS:000273588300039
ER
PT J
AU Hull, MM
AF Hull, Mark M.
TI Ernst Rohm: Hitler's SA Chief of Staff
SO JOURNAL OF MILITARY HISTORY
LA English
DT Book Review
C1 [Hull, Mark M.] USA, Command & Gen Staff Coll, Ft Leavenworth, KS 66027 USA.
RP Hull, MM (reprint author), USA, Command & Gen Staff Coll, Ft Leavenworth, KS 66027 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU SOC MILITARY HISTORY
PI LEXINGTON
PA C/O VIRGINIA MILITARY INST, GEORGE C MARSHALL LIBRARY, LEXINGTON, VA
24450-1600 USA
SN 0899-3718
J9 J MILITARY HIST
JI J. Mil. Hist.
PD JAN
PY 2010
VL 74
IS 1
BP 262
EP 263
PG 2
WC History
SC History
GA 543OP
UT WOS:000273588300051
ER
PT J
AU Calhoun, M
AF Calhoun, Mark
TI Mobility, Shock, and Firepower: The Emergence of the US Army's Armor
Branch, 1917-1945
SO JOURNAL OF MILITARY HISTORY
LA English
DT Book Review
C1 [Calhoun, Mark] USA, Sch Adv Mil Studies, Ft Leavenworth, KS 66027 USA.
RP Calhoun, M (reprint author), USA, Sch Adv Mil Studies, Ft Leavenworth, KS 66027 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU SOC MILITARY HISTORY
PI LEXINGTON
PA C/O VIRGINIA MILITARY INST, GEORGE C MARSHALL LIBRARY, LEXINGTON, VA
24450-1600 USA
SN 0899-3718
J9 J MILITARY HIST
JI J. Mil. Hist.
PD JAN
PY 2010
VL 74
IS 1
BP 276
EP 277
PG 2
WC History
SC History
GA 543OP
UT WOS:000273588300062
ER
PT J
AU Kiesling, E
AF Kiesling, Eugenia
TI Future Tense: The Culture of Anticipation in France Between the Wars
SO JOURNAL OF MILITARY HISTORY
LA English
DT Book Review
C1 [Kiesling, Eugenia] US Mil Acad, West Point, NY 10996 USA.
RP Kiesling, E (reprint author), US Mil Acad, West Point, NY 10996 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU SOC MILITARY HISTORY
PI LEXINGTON
PA C/O VIRGINIA MILITARY INST, GEORGE C MARSHALL LIBRARY, LEXINGTON, VA
24450-1600 USA
SN 0899-3718
J9 J MILITARY HIST
JI J. Mil. Hist.
PD JAN
PY 2010
VL 74
IS 1
BP 280
EP 282
PG 3
WC History
SC History
GA 543OP
UT WOS:000273588300065
ER
PT J
AU Bjorge, GJ
AF Bjorge, Gary J.
TI The Third Chinese Revolutionary Civil War, 1945-49: An Analysis of
Communist Strategy and Leadership
SO JOURNAL OF MILITARY HISTORY
LA English
DT Book Review
C1 [Bjorge, Gary J.] USA, Command & Gen Staff Coll, Ft Leavenworth, KS 66207 USA.
RP Bjorge, GJ (reprint author), USA, Command & Gen Staff Coll, Ft Leavenworth, KS 66207 USA.
NR 1
TC 0
Z9 0
U1 1
U2 1
PU SOC MILITARY HISTORY
PI LEXINGTON
PA C/O VIRGINIA MILITARY INST, GEORGE C MARSHALL LIBRARY, LEXINGTON, VA
24450-1600 USA
SN 0899-3718
J9 J MILITARY HIST
JI J. Mil. Hist.
PD JAN
PY 2010
VL 74
IS 1
BP 297
EP 299
PG 3
WC History
SC History
GA 543OP
UT WOS:000273588300079
ER
PT J
AU Yoshitani, G
AF Yoshitani, Gail
TI The Hawk and the Dove: Paul Nitze, George Kennan, and the History of the
Cold
SO JOURNAL OF MILITARY HISTORY
LA English
DT Book Review
C1 [Yoshitani, Gail] US Mil Acad, West Point, NY 10996 USA.
RP Yoshitani, G (reprint author), US Mil Acad, West Point, NY 10996 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU SOC MILITARY HISTORY
PI LEXINGTON
PA C/O VIRGINIA MILITARY INST, GEORGE C MARSHALL LIBRARY, LEXINGTON, VA
24450-1600 USA
SN 0899-3718
J9 J MILITARY HIST
JI J. Mil. Hist.
PD JAN
PY 2010
VL 74
IS 1
BP 306
EP 307
PG 2
WC History
SC History
GA 543OP
UT WOS:000273588300084
ER
PT J
AU Grau, LW
AF Grau, Lester W.
TI The Accidental Guerrilla: Fighting Small Wars in the Midst of a Big One
SO JOURNAL OF MILITARY HISTORY
LA English
DT Book Review
C1 [Grau, Lester W.] Foreign Mil Studies Off, Ft Leavenworth, KS 66207 USA.
RP Grau, LW (reprint author), Foreign Mil Studies Off, Ft Leavenworth, KS 66207 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU SOC MILITARY HISTORY
PI LEXINGTON
PA C/O VIRGINIA MILITARY INST, GEORGE C MARSHALL LIBRARY, LEXINGTON, VA
24450-1600 USA
SN 0899-3718
J9 J MILITARY HIST
JI J. Mil. Hist.
PD JAN
PY 2010
VL 74
IS 1
BP 323
EP 324
PG 2
WC History
SC History
GA 543OP
UT WOS:000273588300097
ER
PT J
AU Brandt, HE
AF Brandt, Howard E.
TI Geodesic derivative in quantum circuit complexity analysis
SO JOURNAL OF MODERN OPTICS
LA English
DT Article
DE quantum computing; quantum circuits; quantum complexity; Jacobi fields;
geodesics
AB Detailed analysis is given of the geodesic derivative, a useful tool in the Riemannian geometry of quantum computation. The geodesic derivative facilitates numerical evaluation of geodesics describing minimum complexity quantum circuits in which more than two-body interactions are prohibited.
C1 [Brandt, Howard E.] USA, Res Lab, Adelphi, MD USA.
RP Brandt, HE (reprint author), USA, Res Lab, Adelphi, MD USA.
EM hbrandt@arl.army.mil
NR 7
TC 2
Z9 2
U1 1
U2 3
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0950-0340
J9 J MOD OPTIC
JI J. Mod. Opt.
PY 2010
VL 57
IS 19
SI SI
BP 1972
EP 1978
AR PII 923713791
DI 10.1080/09500340.2010.493245
PG 7
WC Optics
SC Optics
GA 682NO
UT WOS:000284410500023
ER
PT J
AU Cole, WP
Zacherl, WD
Delong, JS
AF Cole, Walter P.
Zacherl, Walter D.
Delong, John S.
TI Measured statistics of retroreflected 1064 nm laser light in atmospheric
turbulence
SO JOURNAL OF MODERN OPTICS
LA English
DT Article
DE scintillation; turbulence; propagation
ID PROBABILITY DENSITY-FUNCTION; TO-STRONG TURBULENCE; SCINTILLATION; PATH;
IRRADIANCE; INTENSITY; FLUCTUATIONS; SYSTEM; SIGNAL
AB Detection of optical targets using laser illumination has become an increasingly valuable military tool. In order to better understand typical detection scenarios for a laser illumination system and to improve target detection performance, intensity probability density functions of retroreflected near-infrared laser light were experimentally measured over a near-ground line-of-sight optical path. Returns from a corner cube and a simple lens-mirror system were recorded under a variety of atmospheric conditions, as measured by changes in the refractive-index structure parameter [image omitted]. In addition to its applicability to target detection, this work is relevant to atmospheric propagation research and to free-space laser communication studies.
C1 [Cole, Walter P.; Zacherl, Walter D.; Delong, John S.] US Mil Acad, Photon Res Ctr, West Point, NY 10996 USA.
RP Cole, WP (reprint author), US Mil Acad, Photon Res Ctr, Bldg 753,Rm B21, West Point, NY 10996 USA.
EM walter.p.cole@us.army.mil
FU Air Force Research Laboratory, Materials and Manufacturing Directorate
(AFRL/RX) at WPAFB
FX This work has been supported by the Air Force Research Laboratory,
Materials and Manufacturing Directorate (AFRL/RX) at WPAFB. The authors
would like to thank Shawn Davidson from General Dynamics for providing
extensive support during the experimental testing and Dr Michael
Marciniak for his valuable insight and suggestions. The views expressed
in this article are those of the authors and do not reflect the official
policy or position of the United States Army, Department of Defense, or
the United States Government.
NR 28
TC 2
Z9 2
U1 0
U2 1
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0950-0340
J9 J MOD OPTIC
JI J. Mod. Opt.
PY 2010
VL 57
IS 20
BP 2054
EP 2059
AR PII 927690268
DI 10.1080/09500340.2010.519829
PG 6
WC Optics
SC Optics
GA 689VT
UT WOS:000284959300006
ER
PT J
AU Skovira, JW
McDonough, JH
Shih, TM
AF Skovira, Jacob W.
McDonough, John H.
Shih, Tsung-Ming
TI Protection Against Sarin-Induced Seizures in Rats by Direct Brain
Microinjection of Scopolamine, Midazolam or MK-801
SO JOURNAL OF MOLECULAR NEUROSCIENCE
LA English
DT Article; Proceedings Paper
CT 13th International Symposium on Cholinergic Mechanisms
CY 2008
CL Foz do Iguacu, BRAZIL
DE Sarin; Seizures; Microinjection; Anticonvulsant; Lateral ventricle;
Anterior piriform cortex; Basolateral amygdala; Area tempestas
ID AGENT-INDUCED SEIZURES; SOMAN-INDUCED SEIZURES; PIRIFORM CORTEX; AREA
TEMPESTAS; NERVE; ANTICONVULSANTS; NEUROPATHOLOGY; CONVULSIONS;
MECHANISMS; ATROPINE
AB Control of seizure activity is critical to survival and neuroprotection following nerve agent exposure. Extensive research has shown that three classes of drugs, muscarinic antagonists, benzodiazepines, and N-methyl-d-aspartate antagonists, are capable of moderating these seizures. This study began to map the neural areas in rat brain that respond to these three drug classes resulting in anticonvulsant effects. Drugs of each class (scopolamine, midazolam, MK-801) were evaluated for their ability to prevent sarin-induced seizures when injected into specific brain areas (lateral ventricle, anterior piriform cortex, basolateral amygdala, area tempestas). Animals were pretreated by microinjection with saline or a dose of drug from one of the three classes 30 min prior to receiving 150 mu g/kg sarin, subcutaneously, followed by 2.0 mg/kg atropine methylnitrate, intramuscularly. Animals were then returned to their cages, where electroencephalographic activity was monitored for seizures. Anticonvulsant effective doses (ED(50)) were determined using an up-down dosing procedure over successive animals. Scopolamine provided anticonvulsant effects in each area tested, while midazolam was effective in each area except the lateral ventricle. MK-801 was only effective at preventing seizures when injected into the basolateral amygdala or area tempestas. The results show a unique neuroanatomical and pharmacological specificity for control of nerve agent-induced seizures.
C1 [McDonough, John H.] USA, Med Res Inst Chem Def, ATTN MCMR CDR P, Aberdeen Proving Ground, MD 21010 USA.
[Skovira, Jacob W.; McDonough, John H.; Shih, Tsung-Ming] USA, Med Res Inst Chem Def, Pharmacol Branch, Div Res, Aberdeen Proving Ground, MD 21010 USA.
RP McDonough, JH (reprint author), USA, Med Res Inst Chem Def, ATTN MCMR CDR P, 3100 Ricketts Point Rd, Aberdeen Proving Ground, MD 21010 USA.
EM John.Mcdonough1@us.army.mil
NR 21
TC 17
Z9 17
U1 0
U2 1
PU HUMANA PRESS INC
PI TOTOWA
PA 999 RIVERVIEW DRIVE SUITE 208, TOTOWA, NJ 07512 USA
SN 0895-8696
J9 J MOL NEUROSCI
JI J. Mol. Neurosci.
PD JAN
PY 2010
VL 40
IS 1-2
BP 56
EP 62
DI 10.1007/s12031-009-9253-0
PG 7
WC Biochemistry & Molecular Biology; Neurosciences
SC Biochemistry & Molecular Biology; Neurosciences & Neurology
GA 545RG
UT WOS:000273753500009
PM 19690985
ER
PT J
AU Shih, TM
Skovira, JW
O'Donnell, JC
McDonough, JH
AF Shih, Tsung-Ming
Skovira, Jacob W.
O'Donnell, John C.
McDonough, John H.
TI Treatment with Tertiary Oximes Prevents Seizures and Improves Survival
Following Sarin Intoxication
SO JOURNAL OF MOLECULAR NEUROSCIENCE
LA English
DT Article; Proceedings Paper
CT 13th International Symposium on Cholinergic Mechanisms
CY 2008
CL Foz do Iguacu, BRAZIL
DE Sarin; Acetylcholinesterase; Oxime reactivator; Tertiary oxime;
Anticonvulsant; Seizures
ID NERVE AGENTS; SOMAN; ACETYLCHOLINESTERASE; PROTECTION; TOXICITY;
ATROPINE
AB The capability of the tertiary oximes, monoisonitrosoacetone (MINA) and diacetylmonoxime (DAM), to reactivate acetylcholinesterase (AChE) inhibited by sarin (GB) in the blood, brain, and peripheral tissues of guinea pigs was compared with that of the quaternary oximes 2-PAM, HLo7, and MMB-4. Animals were injected subcutaneously (s.c.) with 1.0 Au LD(50) of GB and treated intramuscularly (i.m.) 5 min later with one of these oximes. Sixty minutes after GB exposure, tissues were collected for AChE analysis. At low doses, MINA and DAM produced significant increases in AChE activity in all brain areas examined, but no significant AChE reactivation in peripheral tissues or blood. At higher doses, MINA and DAM increased AChE activity in the brain, peripheral tissues, and blood. In contrast, the quaternary oximes produced significant reactivation in peripheral tissues and blood AChE, but no significant reactivation of brain AChE. In another study, animals were pretreated i.m. with pyridostigmine 30 min prior to s.c. challenge with 2.0 Au LD(50) of GB and treated i.m. 1 min later with atropine sulfate (2.0 mg/kg), plus a varied dose of oximes. MINA and DAM prevented or terminated GB-induced seizure activity and protected against GB lethality in a dose-dependent fashion. In contrast, none of the quaternary oximes prevented or stopped GB-induced seizures. Thus, tertiary oximes reactivated AChE in the brain, improved survival, and terminated seizures following GB intoxication.
C1 [Shih, Tsung-Ming; Skovira, Jacob W.; O'Donnell, John C.; McDonough, John H.] USA, Med Res Inst Chem Def, Div Res, Pharmacol Branch,ATTN MCMR CDR P, Aberdeen Proving Ground, MD 21010 USA.
RP Shih, TM (reprint author), USA, Med Res Inst Chem Def, Div Res, Pharmacol Branch,ATTN MCMR CDR P, 3100 Ricketts Point Rd, Aberdeen Proving Ground, MD 21010 USA.
EM tsungming.a.shih@us.army.mil
NR 22
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U1 1
U2 10
PU HUMANA PRESS INC
PI TOTOWA
PA 999 RIVERVIEW DRIVE SUITE 208, TOTOWA, NJ 07512 USA
SN 0895-8696
J9 J MOL NEUROSCI
JI J. Mol. Neurosci.
PD JAN
PY 2010
VL 40
IS 1-2
BP 63
EP 69
DI 10.1007/s12031-009-9259-7
PG 7
WC Biochemistry & Molecular Biology; Neurosciences
SC Biochemistry & Molecular Biology; Neurosciences & Neurology
GA 545RG
UT WOS:000273753500010
PM 19680820
ER
PT J
AU Patrician, PA
Loan, L
McCarthy, M
Brosch, LR
Davey, KS
AF Patrician, Patricia A.
Loan, Lori
McCarthy, Mary
Brosch, Laura R.
Davey, Kimberly S.
TI Towards Evidence-based Management: Creating an Informative Database of
Nursing-Sensitive Indicators
SO JOURNAL OF NURSING SCHOLARSHIP
LA English
DT Article
DE Nursing-sensitive indicators; outcomes database; nurse staffing; adverse
events
ID PATIENT MORTALITY; STAFFING LEVELS; OUTCOMES; CARE; ENVIRONMENT;
HOSPITALS; QUALITY
AB Purpose: The purpose of this paper is to describe the creation, evolution, and implementation of a database of nursing-sensitive and potentially nursing-sensitive indicators, the Military Nursing Outcomes Database (MilNOD). It discusses data quality, utility, and lessons learned.
Design/Methods: Prospective data collected each shift include direct staff hours by levels (i.e., registered nurse, other licensed and unlicensed providers), staff categories (i.e., military, civilian, contract, and reservist), patient census, acuity, and admissions, discharges, and transfers. Retrospective adverse event data (falls, medication errors, and needle-stick injuries) were collected from existing records. Annual patient satisfaction, nurse work environment, and pressure ulcer and restraint prevalence surveys were conducted.
Findings and Conclusions: The MilNOD contains shift level data from 56 units in 13 military hospitals and is used to target areas for managerial and clinical performance improvement. This methodology can be modified for use in other healthcare systems.
C1 [Patrician, Patricia A.] Univ Alabama Birmingham, Sch Nursing, Birmingham, AL 35294 USA.
[Loan, Lori] USA, Nurse Corps, Madigan Army Med Ctr, Tacoma, WA USA.
[McCarthy, Mary] Madigan Army Med Ctr, Nursing Res Serv, Tacoma, WA 98431 USA.
[Brosch, Laura R.] USA, ORP, Med Res & Mat Command, Ft Detrick, MD USA.
[Brosch, Laura R.] USA, ORP Human Res Protect Off, Med Res & Mat Command, Ft Detrick, MD 21702 USA.
RP Patrician, PA (reprint author), Univ Alabama Birmingham, Sch Nursing, NB 324,1530 3rd Ave S, Birmingham, AL 35294 USA.
EM ppatrici@uab.edu
FU Uniformed Services University of the Health Sciences [N02-P06, N03-P07]
FX This project was funded by the TriService Nursing Research Program,
Uniformed Services University of the Health Sciences (Grants #N02-P06
and N03-P07); however, the information or content and conclusions do not
necessarily represent the official position or policy of, nor should any
official endorsement be inferred by, the TriService Nursing Research
Program, Uniformed Services University of the Health Sciences, the
Department of Defense, or the U.S. Government.
NR 36
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U2 5
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1527-6546
J9 J NURS SCHOLARSHIP
JI J. Nurs. Scholarsh.
PY 2010
VL 42
IS 4
BP 358
EP 366
DI 10.1111/j.1547-5069.2010.01364.x
PG 9
WC Nursing
SC Nursing
GA 682TN
UT WOS:000284426000002
PM 21091618
ER
PT J
AU Srinivas, PR
Philbert, M
Vu, TQ
Huang, QR
Kokini, JL
Saos, E
Chen, HD
Peterson, CM
Friedl, KE
McDade-Ngutter, C
Hubbard, V
Starke-Reed, P
Miller, N
Betz, JM
Dwyer, J
Milner, J
Ross, SA
AF Srinivas, Pothur R.
Philbert, Martin
Vu, Tania Q.
Huang, Qingrong
Kokini, Josef L.
Saos, Etta
Chen, Hongda
Peterson, Charles M.
Friedl, Karl E.
McDade-Ngutter, Crystal
Hubbard, Van
Starke-Reed, Pamela
Miller, Nancy
Betz, Joseph M.
Dwyer, Johanna
Milner, John
Ross, Sharon A.
TI Nanotechnology Research: Applications in Nutritional Sciences
SO JOURNAL OF NUTRITION
LA English
DT Article
ID FOOD; CELLS
AB The tantalizing potential of nanotechnology is to fabricate and combine nanoscale approaches and building blocks to make useful tools and, ultimately, interventions for medical science, including nutritional science, at the scale of similar to 1-100 nm. In the past few years, tools and techniques that facilitate studies and interventions in the nanoscale range have become widely available and have drawn widespread attention. Recently, investigators in the food and nutrition sciences have been applying the tools of nanotechnology in their research. The Experimental Biology 2009 symposium entitled "Nanotechnology Research: Applications in Nutritional Sciences" was organized to highlight emerging applications of nanotechnology to the food and nutrition sciences, as well as to suggest ways for further integration of these emerging technologies into nutrition research. Speakers focused on topics that included the problems and possibilities of introducing nanoparticles in clinical or nutrition settings, nanotechnology applications for increasing bioavailability of bioactive food components in new food products, nanotechnology opportunities in food science, as well as emerging safety and regulatory issues in this area, and the basic research applications such as the use of quantum dots to visualize cellular processes and protein-protein interactions. The session highlighted several emerging areas of potential utility in nutrition research. Nutrition scientists are encouraged to leverage ongoing efforts in nanomedicine through collaborations. These efforts could facilitate exploration of previously inaccessible cellular compartments and intracellular pathways and thus uncover strategies for new prevention and therapeutic modalities. J. Nutr. 140: 119-124, 2010.
C1 [Milner, John; Ross, Sharon A.] NCI, Canc Prevent Div, Nutr Sci Res Grp, NIH, Bethesda, MD 20892 USA.
[Srinivas, Pothur R.] NHLBI, Atherothrombosis & Coronary Artery Dis Branch, Div Cardiovasc Sci, NIH, Bethesda, MD 20892 USA.
[McDade-Ngutter, Crystal; Hubbard, Van; Starke-Reed, Pamela] NIH, Div Nutr Res Coordinat, Bethesda, MD 20892 USA.
[Miller, Nancy] NIH, Off Sci Policy Anal, Off Sci Policy, Off Director, Bethesda, MD 20892 USA.
[Betz, Joseph M.; Dwyer, Johanna] NIH, Off Dietary Supplements, Off Director, Bethesda, MD 20892 USA.
[Philbert, Martin] Univ Michigan, Sch Publ Hlth, Ann Arbor, MI 48109 USA.
[Vu, Tania Q.] Oregon Hlth & Sci Univ, Portland, OR 97239 USA.
[Huang, Qingrong] Rutgers State Univ, New Brunswick, NJ 08901 USA.
[Kokini, Josef L.] Univ Illinois, Urbana, IL 61801 USA.
[Saos, Etta; Chen, Hongda] USDA, Natl Inst Food & Agr, Washington, DC 20024 USA.
[Peterson, Charles M.; Friedl, Karl E.] USA, Med Res & Mat Command, Telemed & Adv Technol Res Ctr, Ft Detrick, MD 21702 USA.
[Dwyer, Johanna] Tufts Univ, Jean Mayer Human Nutr Res Ctr Aging, Boston, MA 02111 USA.
RP Ross, SA (reprint author), NCI, Canc Prevent Div, Nutr Sci Res Grp, NIH, Bethesda, MD 20892 USA.
EM rosssha@mail.nih.gov
OI Dwyer, Johanna/0000-0002-0783-1769; Friedl, Karl/0000-0002-3134-8427
FU NIEHS NIH HHS [R01 ES008846]
NR 21
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U1 1
U2 21
PU AMER SOC NUTRITIONAL SCIENCE
PI BETHESDA
PA 9650 ROCKVILLE PIKE, RM L-2407A, BETHESDA, MD 20814 USA
SN 0022-3166
J9 J NUTR
JI J. Nutr.
PD JAN
PY 2010
VL 140
IS 1
BP 119
EP 124
DI 10.3945/jn.109.115048
PG 6
WC Nutrition & Dietetics
SC Nutrition & Dietetics
GA 535EH
UT WOS:000272949100020
PM 19939997
ER
PT J
AU Duarte, FJ
Taylor, TS
Clark, AB
Davenport, WE
AF Duarte, F. J.
Taylor, T. S.
Clark, A. B.
Davenport, W. E.
TI The N-slit interferometer: an extended configuration
SO JOURNAL OF OPTICS
LA English
DT Article
DE aviation; beam expansion; clear air turbulence; Dirac notation;
free-space propagation; N-slit interference; N-slit interferometer;
N-slit interferometry; interferometric character; interferometric
imaging
AB An N-slit interferometer is demonstrated with an intra-interferometric propagation path of up to 35 m. The configuration of the N-slit interferometer was extended to its maximum as allowed by the available grating, laser wavelength, and dimensions of the digital detector. Interferometric computations, based on the application of Dirac's notation, were successfully used to predict the structure and divergence of the propagating interferograms. The high sensitivity of the interferometric signal to intra-path perturbations renders this instrument particularly suitable for detecting and registering clear air turbulence, and variations in the refractive index, in the propagation path.
C1 [Duarte, F. J.] Interferometr Opt, Rochester, NY USA.
[Duarte, F. J.] Univ New Mexico, Dept Elect & Comp Engn, Albuquerque, NM 87131 USA.
[Davenport, W. E.] US Army Aviat & Missile Command, Weap Sci Directorate, Huntsville, AL USA.
[Taylor, T. S.; Clark, A. B.] US Army Space & Missile Def Command, Ctr Tech, Technol Directorate, Directed Energy Div, Huntsville, AL USA.
RP Duarte, FJ (reprint author), Interferometr Opt, Rochester, NY USA.
FU US Army High Energy Laser Laboratory
FX This was a US Army High Energy Laser Laboratory project funded through a
subcontract to BAE Systems. We thank P G Varmette for assistance during
these experiments and F J Duarte (Jr) for software support.
NR 11
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U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2040-8978
J9 J OPTICS-UK
JI J. Opt.
PD JAN
PY 2010
VL 12
IS 1
AR 015705
DI 10.1088/2040-8978/12/1/015705
PG 5
WC Optics
SC Optics
GA 540PD
UT WOS:000273346100042
ER
PT J
AU Roppo, V
Cojocaru, C
D'Aguanno, G
Raineri, F
Trull, J
Halioua, Y
Vilaseca, R
Raj, R
Scalora, M
AF Roppo, V.
Cojocaru, C.
D'Aguanno, G.
Raineri, F.
Trull, J.
Halioua, Y.
Vilaseca, R.
Raj, R.
Scalora, M.
TI Phase locked second and third harmonic localization in semiconductor
cavities
SO JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS
LA English
DT Article
DE Nonlinear optics; Harmonics generation; Semiconductor
ID MISMATCHED 2ND-HARMONIC GENERATION; OPTICAL HARMONICS; LIGHT WAVES;
MODULATION; DISPERSION; VELOCITY
AB We study the enhancement of ultra short pulses second and third harmonic generation in a cavity environment, focusing on the role of the phase locking phenomena. Despite the fact that the cavity is only resonant at the fundamental frequency and the harmonics are tuned in a spectral range of huge nominal absorption, we predict and experimentally observe the harmonics become localized inside the cavity leading to relatively large conversion efficiencies. This unique behavior reveals new optical phenomena and new applications for opaque nonlinear materials (i.e. semiconductors) in the visible and UV ranges.
C1 [Roppo, V.; Cojocaru, C.; Trull, J.] Univ Politecn Cataluna, Dept Fis & Eng Nucl, Terrassa 08222, Spain.
[Roppo, V.; D'Aguanno, G.; Vilaseca, R.] USA, CM Bowden Res Facil, RDECOM, Redstone Arsenal, AL 35803 USA.
[Raineri, F.] Univ Paris Diderot, F-75205 Paris, France.
[Halioua, Y.] Univ Ghent, IMEC, Dept Informat Technol, B-9000 Ghent, Belgium.
[Raineri, F.; Halioua, Y.; Raj, R.; Scalora, M.] CNRS, Lab Photon & Nanostruct, Marcoussis, France.
RP Cojocaru, C (reprint author), Univ Politecn Cataluna, Dept Fis & Eng Nucl, Colom 11, Terrassa 08222, Spain.
EM crina.maria.cojocaru@upc.edu
RI roppo, vito/D-9639-2012; Trull, Jose/L-9054-2014; Raineri,
Fabrice/B-2386-2016;
OI roppo, vito/0000-0003-0928-4209; Trull, Jose/0000-0002-5850-088X;
Vilaseca, Ramon/0000-0002-3736-5789; D'Aguanno,
Giuseppe/0000-0002-7132-0103
FU U.S. Army European Research office [W91INF]; National Research Council;
Spanish government [FIS2008-06024-C03-02/FIS]
FX We thank the U.S. Army European Research office for partial financial
(support project W91INF). G.D. thanks the National Research Council for
financial support. VR., C.C., IT. and R.V. acknowledge support from the
Spanish government through Project No. FIS2008-06024-C03-02/FIS. We also
thank Nadia Mattiucci and Mark J. Bloemer for helpful discussions and
suggestions.
NR 15
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U1 0
U2 0
PU NATL INST OPTOELECTRONICS
PI BUCHAREST-MAGURELE
PA 1 ATOMISTILOR ST, PO BOX MG-5, BUCHAREST-MAGURELE 76900, ROMANIA
SN 1454-4164
J9 J OPTOELECTRON ADV M
JI J. Optoelectron. Adv. Mater.
PD JAN
PY 2010
VL 12
IS 1
BP 57
EP 62
PG 6
WC Materials Science, Multidisciplinary; Optics; Physics, Applied
SC Materials Science; Optics; Physics
GA 558HX
UT WOS:000274733200012
ER
PT J
AU Lew, TA
Walker, JA
Wenke, JC
Blackbourne, LH
Hale, RG
AF Lew, Timothy A.
Walker, John A.
Wenke, Joseph C.
Blackbourne, Lorne H.
Hale, Robert G.
TI Characterization of Craniomaxillofacial Battle Injuries Sustained by
United States Service Members in the Current Conflicts of Iraq and
Afghanistan
SO JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY
LA English
DT Article
ID COMBAT CASUALTIES; NECK INJURIES; FREEDOM; EXPERIENCE; FACE; HEAD
AB Purpose: To characterize and describe the craniomaxillofacial (CMF) battlefield injuries sustained by US Service Members in Operation Iraqi Freedom and Operation Enduring Freedom.
Patients and Methods: The Joint Theater Trauma Registry was queried from October 19, 2001, to December 11, 2007, for CMF battlefield injuries. The CMF injuries were identified using the "International Classification of Diseases, Ninth Revision, Clinical Modification" codes and the data compiled for battlefield injury service members. Nonbattlefield injuries, killed in action, and return to duty cases were excluded.
Results: CMF battlefield injuries were found in 2,014 of the 7,770 battlefield-injured US service members. In the 2,014 injured service members were 4,783 CMF injuries (2.4 injuries per soldier). The incidence of CMF battlefield injuries by branch of service was Army, 72%; Marines, 24%; Navy, 2%; and Air Force, 1%. The incidence of penetrating soft-tissue injuries and fractures was 58% and 27%, respectively. Of the fractures, 76% were open. The location of the facial fractures was the mandible in 36%, maxilla/zygoma in 19%, nasal in 14%, and orbit in 11%. The remaining 20% were not otherwise specified. The primary mechanism of injury involved explosive devices (84%).
Conclusions: Of the injured US service members, 26% had injuries to the CMF region in the Operation Iraqi Freedom/Operation Enduring Freedom conflicts during a 6-year period. Multiple penetrating soft-tissue injuries and fractures caused by explosive devices were frequently seen. Increased survivability because of body armor, advanced battlefield medicine, and the increased use of explosive devices is probably related to the elevated incidence of CMF battlefield injuries. The current use of "International Classification of Diseases, Ninth Revision, Clinical Modification" codes with the Joint Theater Trauma Registry failed to characterize the severity of facial wounds. This is a US government work. There are no restrictions on its use. Published by Elsevier Inc on behalf of the American Association of Oral and Maxillofacial Surgeons. J Oral Maxillofac Surg 68:3-7, 2010
C1 [Lew, Timothy A.; Walker, John A.; Wenke, Joseph C.; Blackbourne, Lorne H.; Hale, Robert G.] USA, Inst Surg Res, Ft Sam Houston, TX 78234 USA.
[Lew, Timothy A.; Hale, Robert G.] Brooke Army Med Ctr, Ft Sam Houston, TX 78234 USA.
RP Hale, RG (reprint author), USA, Inst Surg Res, 3851 Rodger Brooke Dr, Ft Sam Houston, TX 78234 USA.
EM robert.hale2@amedd.army.mil
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U2 2
PU W B SAUNDERS CO-ELSEVIER INC
PI PHILADELPHIA
PA 1600 JOHN F KENNEDY BOULEVARD, STE 1800, PHILADELPHIA, PA 19103-2899 USA
SN 0278-2391
J9 J ORAL MAXIL SURG
JI J. Oral Maxillofac. Surg.
PD JAN
PY 2010
VL 68
IS 1
BP 3
EP 7
DI 10.1016/j.joms.2009.06.006
PG 5
WC Dentistry, Oral Surgery & Medicine
SC Dentistry, Oral Surgery & Medicine
GA 617KV
UT WOS:000279280500002
PM 20006147
ER
PT J
AU Sliozberg, YR
Andzelm, JW
Brennan, JK
Vanlandingham, MR
Pryamitsyn, V
Ganesan, V
AF Sliozberg, Yelena R.
Andzelm, Jan W.
Brennan, John K.
Vanlandingham, Mark R.
Pryamitsyn, Victor
Ganesan, Venkat
TI Modeling Viscoelastic Properties of Triblock Copolymers: A DPD
Simulation Study
SO JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
LA English
DT Article
DE block copolymers; DPD simulation; gels; morphology; viscoelastic
properties
ID DISSIPATIVE PARTICLE DYNAMICS; SELECTIVE SOLVENT; BLOCK-COPOLYMERS;
MESOSCOPIC SIMULATION; ASSOCIATING POLYMERS; MOLECULAR-DYNAMICS;
PHASE-BEHAVIOR; POLYSTYRENE; GELS; MICELLIZATION
AB Gel systems based on self-assembled, amphiphilic ABA triblock copolymers in midblock-selective solvent form stable, spatially extended networks with controllable morphology and tunable viscoelastic behavior. In this work, we systematically evaluate the mechanical properties of these gels using morphology calculations, and a nonequilibrium oscillatory shear technique based on the dissipative particle dynamics (DPD) method. Our simulations demonstrate that low molecular weight triblock copolymers with incompatible blocks self-assemble into micelles connected with bridges and loop-like chains comprised of the solvent-selective polymer midblocks. The fraction of bridges, phi(b), generally increases with increasing relative volume of the midblock, x, defined as the ratio of midblock and endblock volumes (x = V(B)/V(A)). For our model, phi(b) reaches a plateau at approximately x > 9 for a strongly selective solvent. At this limit, the value Of phi(b) increases from 0.40 to about 0.66 as the copolymer concentration, c, increases from 0.2 to 0.5; however, this increase is less significant at higher concentrations. The elastic response of the gel studied here is comparable with the Rouse modulus. The elastic modulus increases with polymer concentration, and it exhibits a broad peak within 6 < x < 12. Finally, we present an approximate method to predict the elastic modulus of unentangled ABA triblock copolymers based solely on the morphology of the micellar gel, which can be gleaned from equilibrium DPD simulations. We demonstrate that our simulation results are in good qualitative agreement with other theoretical predictions and experimental data. (C) 2009 Wiley Periodicals, Inc.* J Polym Sci Part B: Polym Phys 48: 15-25,2010
C1 [Sliozberg, Yelena R.; Andzelm, Jan W.; Vanlandingham, Mark R.] USA, Res Lab, RDRL WMM A, Aberdeen Proving Ground, MD 21005 USA.
[Brennan, John K.] USA, Res Lab, RDRL WMB D, Aberdeen Proving Ground, MD 21005 USA.
[Pryamitsyn, Victor; Ganesan, Venkat] Univ Texas Austin, Dept Chem Engn, Austin, TX 78712 USA.
RP Sliozberg, YR (reprint author), USA, Res Lab, RDRL WMM A, Aberdeen Proving Ground, MD 21005 USA.
EM yelena.r.sliozberg@arl.army.mil
RI Pryamitsyn, Victor/J-4540-2013; Ganesan, Venkat/B-9912-2011
OI Pryamitsyn, Victor/0000-0003-2128-7461;
FU U.S. Department of Energy and USARL; U.S. Army Research Office
[W911NF-07-1-0268]
FX This research was supported in part by an appointment to the
Postgraduate Research Participation Program at the U.S. Army Research
Laboratory (USARL) administered by the Oak Ridge Institute of Science
and Education through an inter-agency agreement between the U.S.
Department of Energy and USARL. V. Ganesan and V. Pryamitsyn acknowledge
support from the U.S. Army Research Office under Grant No.
W911NF-07-1-0268.
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U1 6
U2 36
PU JOHN WILEY & SONS INC
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 0887-6266
J9 J POLYM SCI POL PHYS
JI J. Polym. Sci. Pt. B-Polym. Phys.
PD JAN 1
PY 2010
VL 48
IS 1
BP 15
EP 25
DI 10.1002/polb.21839
PG 11
WC Polymer Science
SC Polymer Science
GA 539KB
UT WOS:000273251700002
ER
PT J
AU Reiber, GE
McFarland, LV
Hubbard, S
Maynard, C
Blough, DK
Gambel, JM
Smith, DG
AF Reiber, Gayle E.
McFarland, Lynne V.
Hubbard, Sharon
Maynard, Charles
Blough, David K.
Gambel, Jeffrey M.
Smith, Douglas G.
TI Servicemembers and veterans with major traumatic limb loss from Vietnam
war and OIF/OEF conflicts: Survey methods, participants, and summary
findings
SO JOURNAL OF REHABILITATION RESEARCH AND DEVELOPMENT
LA English
DT Article
DE benefits; combat; limb loss; OIF/OEF; prosthetic devices; traumatic
amputation; veterans; Vietnam war; wounded servicemembers; wounded
warriors
ID LOWER-EXTREMITY AMPUTATION; POSTTRAUMATIC-STRESS-DISORDER; OPERATIONS
ENDURING FREEDOM; HEALTH-CARE UTILIZATION; QUALITY-OF-LIFE; SKIN
PROBLEMS; PSYCHOSOCIAL ADJUSTMENT; TRANSFEMORAL AMPUTATION; PROSTHETIC
DEVICES; COMBAT AMPUTEES
AB Care of veterans and servicemembers with major traumatic limb loss from combat theaters is one of the highest priorities of the Department of Veteran Affairs. We achieved a 62% response rate in our Survey for Prosthetic Use from 298 Vietnam war veterans and 283 servicemembers/veterans from Operation Iraqi Freedom/Operation Enduring Freedom (OIF/OEF) who sustained major traumatic limb loss. Participants reported their combat injuries; health status; quality of life; and prosthetic device use, function, rejection, and satisfaction. Despite the serious injuries experienced, health status was rated excellent, very good, or good by 70.7% of Vietnam war and 85.5% of OIF/OEF survey participants. However, many health issues persist for Vietnam war and OIF/OEF survey participants (respectively): phantom limb pain (72.2%/76.0%), chronic back pain (36.2%/42.1%), residual-limb pain (48.3%/62.9%), prosthesis-related skin problems (51.0%/58.0%), hearing loss (47.0%/47.0%), traumatic brain injury (3.4%/33.9%), depression (24.5%/24.0%), and posttraumatic stress disorder (37.6%/58.7%). Prosthetic devices are currently used by 78.2% of Vietnam war and 90.5% of OIF/OEF survey participants to improve function and mobility. On average, the annual rate for prosthetic device receipt is 10.7-fold higher for OIF/OEF than for Vietnam war survey participants. Findings from this cross-conflict survey identify many strengths in prosthetic rehabilitation for those with limb loss and several areas for future attention.
C1 [Reiber, Gayle E.; McFarland, Lynne V.; Maynard, Charles] Hlth Serv Res & Dev, Dept Vet Affairs Puget Sound Hlth Care Syst, Seattle, WA 98101 USA.
[Reiber, Gayle E.] Univ Washington, Dept Hlth Serv, Seattle, WA 98195 USA.
[Reiber, Gayle E.] Univ Washington, Dept Epidemiol, Seattle, WA 98195 USA.
[McFarland, Lynne V.] Univ Washington, Dept Med Chem, Seattle, WA 98195 USA.
[Hubbard, Sharon] Prosthet Res Study, Seattle, WA USA.
[Blough, David K.] Univ Washington, Dept Pharm, Seattle, WA 98195 USA.
[Gambel, Jeffrey M.] Walter Reed Army Med Ctr, Armed Forces Amputee Patient Care Program, Washington, DC 20307 USA.
[Smith, Douglas G.] Univ Washington, Harborview Med Ctr, Seattle, WA 98104 USA.
[Smith, Douglas G.] Univ Washington, Dept Orthoped, Seattle, WA 98195 USA.
RP Reiber, GE (reprint author), Hlth Serv Res & Dev, Dept Vet Affairs Puget Sound Hlth Care Syst, 1100 Olive Way,Suite 1400, Seattle, WA 98101 USA.
EM Gayle.Reiber@va.gov
RI Maynard, Charles/N-3906-2015
OI Maynard, Charles/0000-0002-1644-7814
FU VA Health Services Research and Development [IIR 05-244]; Senior Career
Scientist Award [RCS 98-353]
FX This material is based on work supported by VA Health Services Research
and Development (grant IIR 05-244) and a Senior Career Scientist Award
to Dr. Reiber (grant RCS 98-353).
NR 91
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U1 3
U2 18
PU JOURNAL REHAB RES & DEV
PI BALTIMORE
PA DEPT OF VETERANS AFFAIRS REHABIL RES & DEVELOP CTR 103 SOUTH GAY STREET,
BALTIMORE, MD 21202-4051 USA
SN 0748-7711
J9 J REHABIL RES DEV
JI J. Rehabil. Res. Dev.
PY 2010
VL 47
IS 4
BP 275
EP 297
DI 10.1682/JRRD.2010.01.0009
PG 23
WC Rehabilitation
SC Rehabilitation
GA 623ZK
UT WOS:000279785700006
PM 20803399
ER
PT J
AU McFarland, LV
Winkler, SLH
Heinemann, AW
Jones, M
Esquenazi, A
AF McFarland, Lynne V.
Winkler, Sandra L. Hubbard
Heinemann, Allen W.
Jones, Melissa
Esquenazi, Alberto
TI Unilateral upper-limb loss: Satisfaction and prosthetic-device use in
veterans and servicemembers from Vietnam and OIF/OEF conflicts
SO JOURNAL OF REHABILITATION RESEARCH AND DEVELOPMENT
LA English
DT Article
DE abandonment; activity measure; limb loss; OIF/OEF; prosthetic device;
rehabilitation; satisfaction; upper-limb loss; veterans; Vietnam
conflict
ID EXTREMITY VASCULAR INJURY; ARMY-MEDICAL-CENTER; TERM-FOLLOW-UP;
RISK-FACTORS; COMBAT AMPUTEES; WARTIME REPORT; AMPUTATION; CARE;
DEFICIENCY; WAR
AB Prosthetic use and satisfaction in wounded servicemembers and veterans with unilateral upper-limb loss has not been thoroughly explored. Through a national survey, we enrolled 47 participants from the Vietnam conflict and 50 from Operation Iraqi Freedom/Operation Enduring Freedom (OIF/OEF) with combat-associated major unilateral upper-limb loss. Upper-limb prosthetic devices were used by 70% of the Vietnam group and 76% of the OIF/OEF group. Mechanical/body-powered upper-limb devices were favored by the Vietnam group, while a combination of myoelectric/hybrid and mechanical/body-powered devices were favored by the OIF/OEF group. Upper-limb devices were completely abandoned in 30% of the Vietnam and 22% of the OIF/OEF groups. Abandonment was more frequent for transhumeral and more proximal levels (42% of Vietnam and 40% of OIF/OEF) than more distal limb-loss levels. Upper-limb prostheses were rejected because of dissatisfaction with the device by significantly fewer (23%) members of the Vietnam group than the OIF/OEF group (45%) (p < 0.001). Most common reasons for rejection included pain, poor comfort, and lack of functionality. A significant paradigm shift has been noted in the OIF/OEF group, who use a greater number and diversity of upper-limb prostheses than the Vietnam group.
C1 [McFarland, Lynne V.] Univ Washington, Seattle, WA 98195 USA.
[Winkler, Sandra L. Hubbard] N Florida S Georgia Vet Hlth Syst, Rehabil Outcomes Res Ctr, Res Enhancement Award Program, Gainesville, FL USA.
[Winkler, Sandra L. Hubbard] Univ Florida, Gainesville, FL USA.
[Heinemann, Allen W.] Northwestern Univ, Feinberg Sch Med, Dept Phys Med & Rehabil, Chicago, IL 60611 USA.
[Heinemann, Allen W.] Rehabil Inst Chicago, Ctr Rehabil Outcomes Res, Chicago, IL 60611 USA.
[Jones, Melissa] USA, Manhattan, KS USA.
[Esquenazi, Alberto] MossRehab & Albert Einstein Med Ctr, Dept Phys Med & Rehabil, Elkins Pk, PA USA.
[McFarland, Lynne V.] Dept Vet Affairs Puget Sound Hlth Care Syst, Seattle, WA USA.
RP McFarland, LV (reprint author), VA Puget Sound Hlth Care Syst, Hlth Serv Res & Dev, 1100 Olive Way,Suite 1400, Seattle, WA 98101 USA.
EM Lynne.McFarland@va.gov
RI Heinemann, Allen /K-6283-2012
OI Heinemann, Allen /0000-0003-2782-7326
FU VA Health Services Research and Development Service [IIR 05-244]; Career
Scientist Award [RCS 98-353]
FX This material was based on work supported by VA Health Services Research
and Development Service (grant IIR 05-244) and a Career Scientist Award
to Dr. Reiber (grant RCS 98-353). The views expressed in this article
are those of the authors and do not necessarily reflect the position or
policy of the VA or DOD.
NR 57
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U1 2
U2 16
PU JOURNAL REHAB RES & DEV
PI BALTIMORE
PA DEPT OF VETERANS AFFAIRS REHABIL RES & DEVELOP CTR 103 SOUTH GAY STREET,
BALTIMORE, MD 21202-4051 USA
SN 0748-7711
J9 J REHABIL RES DEV
JI J. Rehabil. Res. Dev.
PY 2010
VL 47
IS 4
BP 299
EP 316
DI 10.1682/JRRD.2009.03.0027
PG 18
WC Rehabilitation
SC Rehabilitation
GA 623ZK
UT WOS:000279785700007
PM 20803400
ER
PT J
AU Gailey, R
McFarland, LV
Cooper, RA
Czerniecki, J
Gambel, JM
Hubbard, S
Maynard, C
Smith, DG
Raya, M
Reiber, GE
AF Gailey, Robert
McFarland, Lynne V.
Cooper, Rory A.
Czerniecki, Joseph
Gambel, Jeffrey M.
Hubbard, Sharon
Maynard, Charles
Smith, Douglas G.
Raya, Michele
Reiber, Gayle E.
TI Unilateral lower-limb loss: Prosthetic device use and functional
outcomes in servicemembers from Vietnam war and OIF/OEF conflicts
SO JOURNAL OF REHABILITATION RESEARCH AND DEVELOPMENT
LA English
DT Article
DE abandonment; amputation; limb loss; lower-limb loss; OIF/OEF;
prostheses; prosthetic device; rehabilitation; satisfaction; Vietnam
ID PERIPHERAL ARTERIAL-DISEASE; TRAUMA-RELATED AMPUTATIONS;
ARMY-MEDICAL-CENTER; LONG-TERM; VASCULAR INJURY; CARE; REHABILITATION;
SATISFACTION; AMPUTEES; POPULATION
AB Rehabilitation goals following major combat-associated limb loss in World War 11 and the Vietnam war focused on treatment of the injury and a return to civilian life. The goal for Operation Iraqi Freedom/Operation Enduring Freedom (OIF/OEF) servicemembers is to restore function to the greatest possible degree and, if they desire, return them to Active Duty, by providing them with extensive rehabilitation services and a variety of prosthetic devices. Our study determines the usefulness of these diverse types of prosthetic devices for restoring functional capability and documents prosthesis use and satisfaction. We compare servicemembers and veterans with major combat-associated unilateral lower-limb loss: 178 from the Vietnam war and 172 from OIF/OEF conflicts. Of survey participants with unilateral lower-limb loss, 84% of the Vietnam group and 94% of the OIF/OEF group currently use at least one prosthetic device. Reasons for rejection varied by type of device, but common reasons were pain, prosthesis too heavy, and poor fit. Abandonment is infrequent (11% Vietnam group, 4% OIF/OEF group). Future efforts should aim to improve prosthetic-device design, decrease pain, and improve quality of life for these veterans and servicemembers.
C1 [McFarland, Lynne V.; Reiber, Gayle E.] Hlth Serv Res & Dev Serv, VA Puget Sound Hlth Care Syst, Seattle, WA 98101 USA.
[Gailey, Robert] Dept Vet Affairs VA Miami Healthcare Syst, Miami, FL USA.
[Gailey, Robert] Univ Miami, Miller Sch Med, Dept Phys Sci, Coral Gables, FL 33124 USA.
[Cooper, Rory A.] VA Rehabil Res & Dev Serv, VA Pittsburgh Healthcare Syst, Pittsburgh, PA USA.
[Cooper, Rory A.] Univ Pittsburgh, Dept Phys Med & Rehabil, Pittsburgh, PA USA.
[Cooper, Rory A.] Univ Pittsburgh, Dept Bioengn, Pittsburgh, PA USA.
[Cooper, Rory A.] Univ Pittsburgh, Dept Rehabil Sci & Technol, Pittsburgh, PA USA.
[Gambel, Jeffrey M.] Rehabil Care Serv, VA Puget Sound Hlth Care Syst, Seattle, WA USA.
[Czerniecki, Joseph] Univ Washington, Dept Rehabil Med, Seattle, WA 98195 USA.
[Gambel, Jeffrey M.] USA, Med Corps, Washington, DC USA.
[Gambel, Jeffrey M.] Walter Reed Army Med Ctr, Armed Forces Amputee Patient Care Program, Washington, DC 20307 USA.
[Hubbard, Sharon] Prosthet Res Study, Seattle, WA USA.
[Smith, Douglas G.] Univ Washington, Harborview Med Ctr, Seattle, WA 98104 USA.
[Raya, Michele] Univ Miami, Miller Sch Med, Dept Phys Therapy, Coral Gables, FL 33124 USA.
RP McFarland, LV (reprint author), Hlth Serv Res & Dev Serv, VA Puget Sound Hlth Care Syst, 1100 Olive Way,Suite 1400, Seattle, WA 98101 USA.
EM Lynne.McFarland@va.gov
RI Maynard, Charles/N-3906-2015
OI Maynard, Charles/0000-0002-1644-7814
FU VA Health Services Research and Development Service [IIR 05-244]; Career
Scientist Award [RCS 98-353]
FX This material was based on work supported in part by VA Health Services
Research and Development Service (IIR 05-244) and a Career Scientist
Award (RCS 98-353) to Dr. Reiber. The views expressed in this article
are those of the authors and do not necessarily reflect the position or
policy of the VA or DOD.
NR 34
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Z9 19
U1 3
U2 11
PU JOURNAL REHAB RES & DEV
PI BALTIMORE
PA DEPT OF VETERANS AFFAIRS REHABIL RES & DEVELOP CTR 103 SOUTH GAY STREET,
BALTIMORE, MD 21202-4051 USA
SN 0748-7711
J9 J REHABIL RES DEV
JI J. Rehabil. Res. Dev.
PY 2010
VL 47
IS 4
BP 317
EP 331
DI 10.1682/JRRD.2009.04.0039
PG 15
WC Rehabilitation
SC Rehabilitation
GA 623ZK
UT WOS:000279785700008
PM 20803401
ER
PT J
AU Berke, GM
Fergason, J
Milani, JR
Hattingh, J
McDowell, M
Nguyen, V
Reiber, GE
AF Berke, Gary M.
Fergason, John
Milani, John R.
Hattingh, John
McDowell, Martin
Nguyen, Viet
Reiber, Gayle E.
TI Comparison of satisfaction with current prosthetic care in veterans and
servicemembers from Vietnam and OIF/OEF conflicts with major traumatic
limb loss
SO JOURNAL OF REHABILITATION RESEARCH AND DEVELOPMENT
LA English
DT Article
DE amputation site; OIF/OEF; prosthesis; prosthetic care; prosthetic
device; rehabilitation; satisfaction; traumatic limb loss; veteran;
Vietnam; wounded servicemember
ID AMPUTEES; AMPUTATIONS; PAIN; DEVICES
AB Prosthetic care is a vital aspect of healthcare and rehabilitation for veterans and servicemembers with major traumatic limb loss. Our survey queried 581 veterans and servicemembers with limb loss from the Vietnam and Operation Iraqi Freedom (OIF)/Operation Enduring Freedom (OEF) conflicts. Among survey participants, 78.2% from the Vietnam conflict and 90.5% from the OIF/OEF conflict currently use prosthetic devices. In Vietnam respondents, 78% received prosthetic care From private sources, 16% from Department of Veterans Affairs (VA) prosthetic laboratories, 0.9% from Department of Defense (DOD), and 5% from multiple sources. In OIF/OEF respondents, 42% received prosthetic care from private sources, 9% percent from VA, 39% from DOD, and 10% from multiple sources. Participants identified their satisfaction with current prosthetic devices and prosthetic services. Reports of pain, sweating, skin irritation, and problems with socket fit continue to be significant issues for participants from both conflicts regardless of level of amputation or site of service. In those with upper-limb loss who used myoelectric prostheses, minimal effect on prosthesis use and satisfaction was noted. Among lower-limb loss participants from both conflicts, notable differences existed in prosthesis satisfaction by source of care.
C1 [Fergason, John] Brooke Army Med Ctr, Prosthet Orthot Clin, Ft Sam Houston, TX 78234 USA.
[Milani, John R.] Prosthet & Clin Logist Off, Dept Vet Affairs Cent Off, Washington, DC USA.
[Hattingh, John] NW Prosthet & Orthot Clin, Seattle, WA USA.
[McDowell, Martin] VA Puget Sound Hlth Care Syst, Prosthet Orthot Lab, Seattle, WA USA.
[Nguyen, Viet; Reiber, Gayle E.] Univ Washington, Sch Med, Seattle, WA USA.
[Reiber, Gayle E.] VA Puget Sound Hlth Care Syst, Hlth Serv Res & Dev Serv, Seattle, WA USA.
RP Berke, GM (reprint author), 801 Brewster Ave,Suite 270, Redwood City, CA 94063 USA.
EM gmberke@gmail.com
FU VA Health Services Research and Development Service [IIR 05-244]; Career
Scientist Award [RCS 98-353]
FX This material was based on work supported by the VA Health Services
Research and Development Service (grant IIR 05-244) and a Career
Scientist Award to Dr. Reiber (grant RCS 98-353). The views expressed in
this article are those of the authors and do not necessarily reflect the
position or policy of VA or DOD.
NR 22
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U1 4
U2 14
PU JOURNAL REHAB RES & DEV
PI BALTIMORE
PA DEPT OF VETERANS AFFAIRS REHABIL RES & DEVELOP CTR 103 SOUTH GAY STREET,
BALTIMORE, MD 21202-4051 USA
SN 0748-7711
J9 J REHABIL RES DEV
JI J. Rehabil. Res. Dev.
PY 2010
VL 47
IS 4
BP 361
EP 371
DI 10.1682/JRRD.2009.12.0193
PG 11
WC Rehabilitation
SC Rehabilitation
GA 623ZK
UT WOS:000279785700011
PM 20803404
ER
PT J
AU Blough, DK
Hubbard, S
McFarland, LV
Smith, DG
Gambel, JM
Reiber, GE
AF Blough, David K.
Hubbard, Sharon
McFarland, Lynne V.
Smith, Douglas G.
Gambel, Jeffrey M.
Reiber, Gayle E.
TI Prosthetic cost projections for servicemembers with major limb loss from
Vietnam and OIF/OEF
SO JOURNAL OF REHABILITATION RESEARCH AND DEVELOPMENT
LA English
DT Article
DE amputation; assistive device; cost projection; costs; limb loss; Markov
model; OIF/OEF; prosthetics; rehabilitation; Vietnam
ID MEDICAL DECISION-ANALYSIS; PRIMER; AMPUTATION; RECONSTRUCTION; LEG
AB This study projects prosthetic- and assistive-device costs for veterans with limb loss from Vietnam and injured servicemembers returning from Operation Iraqi Freedom (OIF) and Operation Enduring Freedom (OFF) to inform the Department of Veterans Affairs (VA) for these veterans' future care. The 2005 Medicare prosthetic device component prices were applied to current prosthetic and assistive-device use obtained from a national survey of 581 veterans and servicemembers with major traumatic amputations. Projections were made for 5-year, 10-year, 20-year, and lifetime costs based on eight Markov models. Average 5-year projected costs for prosthetic and assistive-device replacement for the Vietnam group are lower than for the OIF/OEF cohort due in part to use of fewer and less technologically advanced prosthetic devices and higher frequency of prosthetic abandonment. By limb-loss level, for the Vietnam group and OIF/OEF cohort, 5-year projected unilateral upper limb average costs are $31,129 and $117,440, unilateral lower limb costs are $82,251 and $228,665, and multiple limb costs are $130,890 and 5453,696, respectively. These figures provide the VA with a funding estimate for technologically advanced prosthetic and assistive devices within the framework of ongoing rehabilitation for veterans with traumatic limb loss from the Vietnam and OIF/OEF conflicts.
C1 [Blough, David K.] Univ Washington, Dept Pharm, Seattle, WA 98195 USA.
[McFarland, Lynne V.; Reiber, Gayle E.] Hlth Serv Res & Dev Serv, Dept Vet Affairs Puget Sound Hlth Care Syst, Seattle, WA USA.
[Hubbard, Sharon] Prosthet Res Study, Seattle, WA USA.
[Smith, Douglas G.] Univ Washington, Harborview Med Ctr, Seattle, WA 98104 USA.
[Gambel, Jeffrey M.] USA, Med Corps, Washington, DC USA.
Walter Reed Army Med Ctr, Armed Forces Amputee Patient Care Program, Washington, DC 20307 USA.
RP Blough, DK (reprint author), Univ Washington, Dept Pharm, Box 357630, Seattle, WA 98195 USA.
EM dkblough@u.washington.edu
FU VA Health Services Research and Development Service [IIR 05-244]; Career
Scientist Award [RCS 98-353]
FX This material is based upon work supported by VA Health Services
Research and Development Service (grant IIR 05-244) and a Career
Scientist Award to Dr. Reiber (grant RCS 98-353). The views expressed in
this article are those of the authors and do not necessarily reflect the
position or policy of the VA or the DOD.
NR 33
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U1 2
U2 9
PU JOURNAL REHAB RES & DEV
PI BALTIMORE
PA DEPT OF VETERANS AFFAIRS REHABIL RES & DEVELOP CTR 103 SOUTH GAY STREET,
BALTIMORE, MD 21202-4051 USA
SN 0748-7711
J9 J REHABIL RES DEV
JI J. Rehabil. Res. Dev.
PY 2010
VL 47
IS 4
BP 387
EP 402
DI 10.1682/JRRD.2009.04.0037
PG 16
WC Rehabilitation
SC Rehabilitation
GA 623ZK
UT WOS:000279785700013
PM 20803406
ER
PT J
AU Plackett, TP
Gamelli, RL
Kovacs, EJ
AF Plackett, Timothy P.
Gamelli, Richard L.
Kovacs, Elizabeth J.
TI Gender-Based Differences in Cytokine Production after Burn Injury: A
Role of Interleukin-6
SO JOURNAL OF THE AMERICAN COLLEGE OF SURGEONS
LA English
DT Article
ID ACUTE ETHANOL EXPOSURE; THERMAL-INJURY; TRAUMA-HEMORRHAGE;
IMMUNE-RESPONSES; SEX-DIFFERENCES; MURINE MODEL; RISK-FACTORS; AGED
MICE; MORTALITY; IL-6
AB BACKGROUND: Gender-specific differences have been found in the survival of patients after a burn injury. Using a murine model of burn injury, suppression of cell-mediated immunity occurs in a gender-specific manner. Immunosuppression correlated with elevated circulating interleukin-6. This study examines gender differences in cytokine production after injury and the role of interleukin-6.
STUDY DESIGN: A murine model of dorsal scald injury was used to examine differences in splenocyte production of interleukin-2, interleukin-4, and interferon-gamma in male versus female mice, and cytokine production in interleukin-6-deficient male mice.
RESULTS: At 24 hours after burn injury, there was substantially greater suppression of T-helper 1 cytokine production in male mice than in female mice. Interleukin-6-deficient male mice had improved cytokine production relative to wild-type mice.
CONCLUSIONS: Suppression of the cell-mediated immune response in male mice correlated with lower T-helper 1 cytokine production, compared with female mice. Additionally, immune response and cytokine production is improved by interleukin-6 deficiency. (J Am Coll Surg 2010;210:73-78. (C) 2010 by the American College of Surgeons)
C1 [Kovacs, Elizabeth J.] Loyola Univ, Med Ctr, Dept Surg, Burn & Shock Trauma Inst, Maywood, IL 60513 USA.
[Plackett, Timothy P.] Tripler Army Med Ctr, Dept Gen Surg, Honolulu, HI 96859 USA.
RP Kovacs, EJ (reprint author), Loyola Univ, Med Ctr, Dept Surg, Burn & Shock Trauma Inst, Bldg 110,Room 4232,2160 S 1st Ave, Maywood, IL 60513 USA.
EM ekovacs@lumc.edu
FU NIH [R01 AG 18859, R01 AA 012034,]; Department of Defense
[W81XWH-07-1-0673]; Illinois Excellence in Academic Medicine; Dr Ralph
and Marian C Falk Medical Research Trust
FX This work was supported, in part, by NIH R01 AG 18859, NIH R01 AA
012034, Department of Defense W81XWH-07-1-0673, Illinois Excellence in
Academic Medicine Grant, and the Dr Ralph and Marian C Falk Medical
Research Trust.
NR 34
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Z9 11
U1 1
U2 3
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 1072-7515
J9 J AM COLL SURGEONS
JI J. Am. Coll. Surg.
PD JAN
PY 2010
VL 210
IS 1
BP 73
EP 78
DI 10.1016/j.jamcollsurg.2009.09.019
PG 6
WC Surgery
SC Surgery
GA 617KO
UT WOS:000279279800012
PM 20123335
ER
PT J
AU Yeo, H
Sinsay, JD
Acree, CW
AF Yeo, Hyeonsoo
Sinsay, Jeffrey D.
Acree, C. W., Jr.
TI Selection of Rotor Solidity for Heavy Lift Tiltrotor Design
SO JOURNAL OF THE AMERICAN HELICOPTER SOCIETY
LA English
DT Article
AB The process of rotor blade area sizing during conceptual design was explored for the design of military and civil heavy lift tiltrotors. The use of the comprehensive rotorcraft analysis CAMRAD II was investigated as an aid to aircraft sizing, performed in the RC design code. Hover, cruise, and turn performance calculations were conducted on a initial design from RC with CAMRAD II. The results of this were then fed back into RC and the designs updated. A sustained, level-altitude, 45-deg bank angle, coordinated turn capability at 80 kt was chosen as the critical maneuver condition. This quasi-steady-state condition was modeled in CAMRAD II. Three different ways, appropriate for conceptual design, to quantify the necessary rotor solidity for the maneuver were examined: (I) total power required, (2) a rotor stall boundary as defined by the slope of aircraft power, and (3) a rotor stall boundary defined by the rise in rotor profile power. Stall boundary, defined by a rise in rotor profile power, was identified as the preferred way to select rotor solidity in maneuver. The method developed shows promise as a reasonable approach to accessing rotor solidity requirements during conceptual design.
C1 [Yeo, Hyeonsoo; Sinsay, Jeffrey D.] USA, Aeroflightdynam Directorate AMRDEC, Ames Res Ctr, Res Dev & Engn Command, Moffett Field, CA USA.
[Acree, C. W., Jr.] NASA, Ames Res Ctr, Aeromech Branch, Moffett Field, CA 94035 USA.
RP Yeo, H (reprint author), USA, Aeroflightdynam Directorate AMRDEC, Ames Res Ctr, Res Dev & Engn Command, Moffett Field, CA USA.
EM hyeonsoo.yeo@us.army.mil
NR 19
TC 2
Z9 2
U1 0
U2 1
PU AMER HELICOPTER SOC INC
PI ALEXANDRIA
PA 217 N WASHINGTON ST, ALEXANDRIA, VA 22314 USA
SN 0002-8711
J9 J AM HELICOPTER SOC
JI J. Am. Helicopter Soc.
PD JAN
PY 2010
VL 55
IS 1
AR 012010
DI 10.4050/JAHS.55.012010
PG 12
WC Engineering, Aerospace
SC Engineering
GA 745CN
UT WOS:000289141600011
ER
PT J
AU Andrei, P
Zheng, JP
Hendrickson, M
Plichta, EJ
AF Andrei, P.
Zheng, J. P.
Hendrickson, M.
Plichta, E. J.
TI Some Possible Approaches for Improving the Energy Density of Li-Air
Batteries
SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY
LA English
DT Article
ID LITHIUM/OXYGEN BATTERY; ORGANIC ELECTROLYTE; CELL
AB A physics-based model is proposed for the simulation of Li-air batteries. The model is carefully calibrated against published data and is used to simulate standard Li-air batteries with a nonaqueous (organic) electrolyte. The specific capacity is mainly limited by the oxygen diffusion length, which is a function of the oxygen diffusivity in the electrolyte and the discharge current density. Various approaches to increase the specific capacity of the cathode electrode and the energy density of Li-air batteries are discussed. To increase the specific capacity and energy density, it is more efficient to use a nonuniform catalyst that enhances the reaction rate only at the separator-cathode interface than a catalyst uniformly distributed. Using uniformly distributed catalysts enhances the current and power density of the cell but does not increase significantly the specific capacity and energy density. The specific capacity and energy density can be increased by suppressing the reaction rate at the oxygen-entrance interface to delay the pinch-off of the conduction channel in this region. Other possibilities to enhance the energy density such as using solvents with high oxygen solubility and diffusivity and partly wetted electrodes are discussed. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3486114] All rights reserved.
C1 [Andrei, P.; Zheng, J. P.] Florida A&M Univ, Dept Elect & Comp Engn, Tallahassee, FL 32310 USA.
[Zheng, J. P.] Florida State Univ, Ctr Adv Power Syst, Tallahassee, FL 32310 USA.
[Hendrickson, M.; Plichta, E. J.] USA, CERDEC, Ft Monmouth, NJ 07703 USA.
RP Andrei, P (reprint author), Florida A&M Univ, Dept Elect & Comp Engn, Tallahassee, FL 32310 USA.
EM zheng@eng.fsu.edu
FU U.S. Army-CERDEC; National Sciences Foundation under Engineering
Research Center [EEC-0812121]
FX This work was supported by the U.S. Army-CERDEC and the National
Sciences Foundation under Engineering Research Center Program no.
EEC-0812121.
NR 21
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U1 3
U2 66
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 0013-4651
J9 J ELECTROCHEM SOC
JI J. Electrochem. Soc.
PY 2010
VL 157
IS 12
BP A1287
EP A1295
DI 10.1149/1.3486114
PG 9
WC Electrochemistry; Materials Science, Coatings & Films
SC Electrochemistry; Materials Science
GA 676SH
UT WOS:000283938300002
ER
PT J
AU Moss, PL
Au, G
Plichta, EJ
Zheng, JP
AF Moss, P. L.
Au, G.
Plichta, E. J.
Zheng, J. P.
TI Study of Capacity Fade of Lithium-Ion Polymer Rechargeable Batteries
with Continuous Cycling
SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY
LA English
DT Article
ID SOLID-ELECTROLYTE; GRAPHITE ANODES; INTERFACE; LICOO2; DECOMPOSITION;
MECHANISMS; CARBONATE; IMPEDANCE; CATHODES; CELLS
AB A cycle life study was done on commercial lithium-ion polymer batteries to quantify contributions to capacity fade with continuous charge-discharge cycling. The cell consists of graphite (meso-carbon microbeads) as an anode material and lithium cobalt oxide (LixCoO(2)) as a cathode material. Analyses were done using ac impedance spectroscopy, scanning electron microscopy, X-ray diffraction, and transmission electron microscopy. The results show that contributions to capacity fade with continuous charge/discharge cycling included solvent-salt deposition on the anode surface; however, instability and cation disorder in the cathode electrode were identified as the main reasons for capacity fade with continuous charge/discharge cycling. (C) 2009 The Electrochemical Society. [DOI: 10.1149/1.3246001] All rights reserved.
C1 [Moss, P. L.; Zheng, J. P.] Florida A&M Univ, Dept Elect & Comp Engn, Tallahassee, FL 32310 USA.
[Zheng, J. P.] Florida State Univ, Ctr Adv Power Syst, Tallahassee, FL 32310 USA.
[Au, G.; Plichta, E. J.] USA, Power Div, Army Commun Elect Res Dev & Engn Ctr, Ft Monmouth, NJ 07703 USA.
RP Moss, PL (reprint author), Florida A&M Univ, Dept Elect & Comp Engn, Tallahassee, FL 32310 USA.
EM zheng@eng.fsu.edu
FU US Army CERDEC; National Science Foundation under Engineering Research
Center [EEC-0812121]
FX This work was supported by US Army CERDEC and National Science
Foundation under Engineering Research Center program no. EEC-0812121.
NR 24
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Z9 20
U1 2
U2 26
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 0013-4651
J9 J ELECTROCHEM SOC
JI J. Electrochem. Soc.
PY 2010
VL 157
IS 1
BP A1
EP A7
DI 10.1149/1.3246001
PG 7
WC Electrochemistry; Materials Science, Coatings & Films
SC Electrochemistry; Materials Science
GA 527SQ
UT WOS:000272387200001
ER
PT J
AU Zhang, GQ
Zheng, JP
Liang, R
Zhang, C
Wang, B
Hendrickson, M
Plichta, EJ
AF Zhang, G. Q.
Zheng, J. P.
Liang, R.
Zhang, C.
Wang, B.
Hendrickson, M.
Plichta, E. J.
TI Lithium-Air Batteries Using SWNT/CNF Buckypapers as Air Electrodes
SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY
LA English
DT Article
ID ORGANIC ELECTROLYTE; ENERGY DENSITY
AB Li-air cells based on Li foil as an anode electrode, freestanding carbon nanotube/nanofiber mixed buckypaper as an air (cathode) electrode, and organic electrolyte were assembled. The air electrode was made with single-wall carbon nanotube (SWNT) and carbon nanofiber (CNF) without any binder. The discharge capacity was strongly dependent on both the discharge current density and the thickness of the air electrode. A discharge capacity as high as 2500 mAh/g was obtained for an air electrode at a thickness of 20 mu m with a discharge current density of 0.1 mA/cm(2); however, it was reduced to 400 mAh/g when the thickness of the air electrode was increased to 220 mu m. For a 66 mu m thick air electrode, the discharge capacity decreased from 1600 to 340 mAh/g when the discharge current density increased from 0.1 to 0.5 mA/cm(2). The scanning electron microscope images on surfaces of the air electrode from a fully discharged cell showed that the voids at the air side were almost fully filled by the solid deposition; however, the voids at the membrane side were still wide open. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3446852] All rights reserved.
C1 [Zhang, G. Q.; Zheng, J. P.] Florida A&M Univ, Dept Elect & Comp Engn, Tallahassee, FL 32310 USA.
[Liang, R.; Zhang, C.; Wang, B.] Florida A&M Univ, Dept Ind & Mfg Engn, Tallahassee, FL 32310 USA.
[Zheng, J. P.] Florida State Univ, Ctr Adv Power Syst, Tallahassee, FL 32310 USA.
[Liang, R.; Zhang, C.; Wang, B.] Florida State Univ, High Performance Mat Inst, Tallahassee, FL 32310 USA.
[Hendrickson, M.; Plichta, E. J.] USA, Power Div, Army CERDEC, Ft Monmouth, NJ 07703 USA.
RP Zhang, GQ (reprint author), Florida A&M Univ, Dept Elect & Comp Engn, Tallahassee, FL 32310 USA.
EM zheng@eng.fsu.edu
RI zhang, guoqing/G-7798-2011
OI zhang, guoqing/0000-0001-5896-0483
FU U.S. Army-CERDEC
FX This work was supported by U.S. Army-CERDEC.
NR 14
TC 138
Z9 147
U1 12
U2 115
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 0013-4651
J9 J ELECTROCHEM SOC
JI J. Electrochem. Soc.
PY 2010
VL 157
IS 8
BP A953
EP A956
DI 10.1149/1.3446852
PG 4
WC Electrochemistry; Materials Science, Coatings & Films
SC Electrochemistry; Materials Science
GA 622OP
UT WOS:000279673400008
ER
PT J
AU Grew, KN
Chu, D
Chiu, WKS
AF Grew, Kyle N.
Chu, Deryn
Chiu, Wilson K. S.
TI Ionic Equilibrium and Transport in the Alkaline Anion Exchange Membrane
SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY
LA English
DT Article
DE dissociation; ionic conductivity; membranes; polymers; solvation
ID TEMPERATURE FUEL-CELLS; SCIENTIFIC ASPECTS; ACIDITY FUNCTIONS; PROTON
TRANSPORT; PEMFC SCIENCE; QUANTUM JUMPS; CONDUCTIVITY; NAFION;
THERMODYNAMICS; DEGRADATION
AB Several groups have demonstrated alkaline anion exchange membranes (AAEMs) with promising hydroxyl anion conductivity and stability without a supporting metal hydroxide solution. This work examines the equilibrium dissociation and solvation processes associated with the AAEM's quaternary ammonium side chains and its impact on the membrane's ionic conductivity. This is undertaken using an analogy to acidity functions for solutions containing a strong base of similar chemical structure to the AAEM's functional groups. The AAEM has a lower base dissociation constant, relative to the acid dissociation constant for DuPont's Nafion. The lower dissociation constant results in a smaller degree of dissociation and thus availability of ionic charge carriers. An ionic transport model is then used to predict membrane conductivities. The dissociation and solvation models are used to prescribe the concentration of the available charge carriers. The dissociation and solvation models permit a consistent description of the AAEM and Nafion to predict ionic conductivity. This model is validated with experimental ionic conductivity data. The dissociation and solvation processes are recognized as a prominent factor influencing membrane conductivity.(C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3368728] All rights reserved.
C1 [Grew, Kyle N.; Chiu, Wilson K. S.] Univ Connecticut, Dept Mech Engn, Storrs, CT 06269 USA.
[Grew, Kyle N.; Chu, Deryn] USA, Res Lab, Sensors & Electron Devices Directorate, Adelphi, MD 20783 USA.
RP Grew, KN (reprint author), Univ Connecticut, Dept Mech Engn, Storrs, CT 06269 USA.
EM wchiu@engr.uconn.edu
RI Grew, Kyle/K-3982-2013
OI Grew, Kyle/0000-0002-1645-3835
FU National Defense Science and Engineering Graduate (NDSEG)
FX The authors gratefully acknowledge that these efforts were completed
under the direction of the U.S. Army Research Laboratory STEP summer
student internship program. Special thanks to Dr. Cynthia Lundgren of
the U. S. Army Research Laboratory for her help with facilitating this
opportunity. The authors also acknowledge support from the National
Defense Science and Engineering Graduate (NDSEG) fellowship program,
administered by the American Society of Engineering Educators (ASEE).
NR 42
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Z9 21
U1 1
U2 24
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 0013-4651
J9 J ELECTROCHEM SOC
JI J. Electrochem. Soc.
PY 2010
VL 157
IS 7
BP B1024
EP B1032
DI 10.1149/1.3368728
PG 9
WC Electrochemistry; Materials Science, Coatings & Films
SC Electrochemistry; Materials Science
GA 603BJ
UT WOS:000278182600032
ER
PT J
AU Grapes, MD
Morris, CJ
AF Grapes, Michael D.
Morris, Christopher J.
TI Improving the CoNiMnP Electrodeposition Process Using Taguchi Design of
Experiments
SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY
LA English
DT Article
ID PERMANENT-MAGNET ARRAYS; THIN-FILMS; NICKEL; MEDIA; FIELD
AB Thin film magnetic materials with out-of-plane anisotropy are important for microelectromechanical systems (MEMS) actuation and other applications requiring forces at a distance. Electrodeposited magnetic alloys are the most easily integrated option because they do not require high temperature processing or exotic seed layers. However, electrodeposition processes can be inconsistent and optimizing such processes is difficult because of the large number of factors typically involved: seed layer, bath chemistry, physical bath parameters, and current density. Such problems are well-suited to Taguchi design of experiments, which we used to determine and optimize factors with the largest influence on residual stress and out-of-plane magnetic properties of CoNiMnP films. A new process recipe resulted which yielded a maximum energy density of 5.3 kJ/m(3), a remanence of 220 mT, and a coercivity of 93 kA/m. These results provide improved properties for immediate application in magnetic MEMS and should guide future work in the optimization of CoNiMnP and other electroplated cobalt alloys. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3499355] All rights reserved.
C1 [Grapes, Michael D.; Morris, Christopher J.] USA, Res Lab, Sensors & Electron Devices Directorate, Adelphi, MD 20783 USA.
RP Grapes, MD (reprint author), USA, Res Lab, Sensors & Electron Devices Directorate, Adelphi, MD 20783 USA.
EM christopher.morris17@us.army.mil
NR 21
TC 3
Z9 3
U1 2
U2 12
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 0013-4651
J9 J ELECTROCHEM SOC
JI J. Electrochem. Soc.
PY 2010
VL 157
IS 12
BP D642
EP D647
DI 10.1149/1.3499355
PG 6
WC Electrochemistry; Materials Science, Coatings & Films
SC Electrochemistry; Materials Science
GA 676SH
UT WOS:000283938300058
ER
PT J
AU Gougousi, T
Hackley, JC
Demaree, JD
Lacis, JW
AF Gougousi, Theodosia
Hackley, Justin C.
Demaree, J. Derek
Lacis, John W.
TI Growth and Interface Evolution of HfO2 Films on GaAs(100) Surfaces
SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY
LA English
DT Article
DE ammonia; atomic layer deposition; gallium arsenide; gallium compounds;
hafnium compounds; III-V semiconductors; Rutherford backscattering; thin
films; water; X-ray photoelectron spectra
ID ATOMIC LAYER DEPOSITION; RAY-PHOTOELECTRON-SPECTROSCOPY; GAAS 100
SURFACES; OXIDES; DECOMPOSITION; DIELECTRICS; SI; MICROSCOPY;
MORPHOLOGY; HAFNIUM
AB The initial film growth (2-100 cycles) and the interface evolution of HfO2 thin films on GaAs surfaces were investigated for an atomic layer deposition chemistry that utilizes tetrakis(ethylmethyl) amino hafnium and H2O at 250 degrees C. Starting surfaces include native oxide and HF or NH4OH-etched substrates. X-ray photoelectron spectroscopy shows that deposition on native oxide GaAs surfaces results in the gradual consumption of the arsenic and gallium oxides. Arsenic oxides are easier to remove, leaving some metallic arsenic-arsenic suboxide at the interface. The removal of the gallium oxides is slower, and some residual Ga2O3 and Ga2O are detected after 100 process cycles. High resolution transmission electron microscopy confirms the presence of an almost sharp interface for the 100 cycle (12 nm) film and indicates that the as-deposited film is polycrystalline. The depositions on either HF or NH4OH-etched substrates result in a sharp interface with very little residual gallium oxide and arsenic suboxide present. Rutherford backscattering spectroscopy shows that steady-state growth comparable to that achieved on SiO2 is reached after similar to 20 ALD cycles for all GaAs surfaces; however, high initial surface activity is detected for the etched surfaces.
C1 [Gougousi, Theodosia; Hackley, Justin C.; Lacis, John W.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Demaree, J. Derek] USA, Weapons & Mat Res Directorate, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
RP Gougousi, T (reprint author), Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
EM gougousi@umbc.edu
RI Gougousi, Theodosia/C-8156-2014
FU American Chemical Society; NSF [DMR-0846445]
FX Acknowledgment is made to the Donors of the American Chemical Society
Petroleum Research Fund and the NSF (DMR-0846445) for partial support of
this research. The authors also acknowledge Karen G. Gaskell from the
XPS facility of the University of Maryland for taking the data and many
helpful discussions.
NR 44
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U1 1
U2 14
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 0013-4651
J9 J ELECTROCHEM SOC
JI J. Electrochem. Soc.
PY 2010
VL 157
IS 5
BP H551
EP H556
DI 10.1149/1.3353166
PG 6
WC Electrochemistry; Materials Science, Coatings & Films
SC Electrochemistry; Materials Science
GA 581WF
UT WOS:000276555300068
ER
PT J
AU Belanger, HG
Kretzmer, T
Vanderploeg, RD
French, LM
AF Belanger, Heather G.
Kretzmer, Tracy
Vanderploeg, Rodney D.
French, Louis M.
TI Symptom complaints following combat-related traumatic brain injury:
Relationship to traumatic brain injury severity and posttraumatic stress
disorder
SO JOURNAL OF THE INTERNATIONAL NEUROPSYCHOLOGICAL SOCIETY
LA English
DT Article
DE TBI; Mild TBI; Posttraumatic stress disorder; Postconcussion syndrome;
Brain concussion; Brain injuries
ID MILD HEAD-INJURY; POSTCONCUSSION-SYNDROME; CHRONIC PAIN; DISABILITIES;
IMPAIRMENTS; ADJUSTMENT; PREVALENCE
AB Patients with a history of mild (n = 134) or moderate-to-severe (n = 91) TBI were asked to complete the Neurobehavioral Symptom Inventory (NSI) and the Posttraumatic Stress Disorder Checklist. Consistent with prior research, significantly more postconcussion symptoms were endorsed by the mild group. After controlling for age, time since injury, and mechanism of injury, TBI severity continued to be significantly related to postconcussion complaints on the NSI. However, after controlling for these same variables, along with posttraumatic stress disorder symptom severity, there no longer were differences between the TBI severity groups. That is, patients with mild TBI did not endorse significantly more complaints (adjusted mean = 22.4) than the moderate-to-severe group (ad Listed mean = 21.8). These findings suggest that much of the symptom complaints in mildly injured patients may be due to emotional distress. (JINS, 2010, 16, 194-199.)
C1 [Belanger, Heather G.; Kretzmer, Tracy; Vanderploeg, Rodney D.] James A Haley VA, Dept Mental Hlth & Behav Sci, Tampa, FL USA.
[Belanger, Heather G.; Vanderploeg, Rodney D.] Univ S Florida, Dept Psychol, Tampa, FL 33620 USA.
[Belanger, Heather G.; Vanderploeg, Rodney D.; French, Louis M.] Walter Reed Army Med Ctr, Def & Vet Brain Injury Ctr, Washington, DC 20307 USA.
[Vanderploeg, Rodney D.] Univ S Florida, Dept Psychiat, Tampa, FL USA.
[French, Louis M.] Walter Reed Army Med Ctr, Dept Orthoped & Rehabil, Washington, DC 20307 USA.
[French, Louis M.] Uniformed Serv Univ Hlth Sci, Dept Neurol, Bethesda, MD 20814 USA.
RP Belanger, HG (reprint author), James A Haley Vet Hosp, MHBS 116B,13000 Bruce B Downs Blvd, Tampa, FL 33612 USA.
EM heather.belanger@va.gov
FU Department of Veterans Affairs, Veterans Health Administration (VHA);
Defense and Veterans Brain Injury Center (DVBIC); James A. Haley
Veterans' Hospital
FX The research reported here was supported by the Department of Veterans
Affairs, Veterans Health Administration (VHA), and the Defense and
Veterans Brain Injury Center (DVBIC). Further support was provided by
the James A. Haley Veterans' Hospital. The views expressed herein are
those of the authors and do not necessarily reflect the views or the
official policy of the Department of Army. Department of Defense,
Department of Veterans Affairs. or U.S. Government.
NR 29
TC 69
Z9 69
U1 0
U2 7
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 1355-6177
J9 J INT NEUROPSYCH SOC
JI J. Int. Neuropsychol. Soc.
PD JAN
PY 2010
VL 16
IS 1
BP 194
EP 199
DI 10.1017/S1355617709990841
PG 6
WC Clinical Neurology; Neurosciences; Psychiatry; Psychology
SC Neurosciences & Neurology; Psychiatry; Psychology
GA 543LR
UT WOS:000273579600021
PM 19758488
ER
PT J
AU White, PW
Gillespie, DL
Feurstein, I
Aidinian, G
Phinney, S
Cox, MW
Adams, E
Fox, CJ
AF White, Paul W.
Gillespie, David L.
Feurstein, Irwin
Aidinian, Gilbert
Phinney, Samuel
Cox, Mitchell W.
Adams, Eric
Fox, Charles J.
TI Sixty-Four Slice Multidetector Computed Tomographic Angiography in the
Evaluation of Vascular Trauma
SO JOURNAL OF TRAUMA-INJURY INFECTION AND CRITICAL CARE
LA English
DT Article; Proceedings Paper
CT 21st Annual Meeting of the Eastern-Vascular-Society
CY SEP 27-29, 2007
CL Baltimore, MD
SP Eastern Vasc Soc
DE Vascular trauma; Penetrating; Vascular injury; CTA; MDCTA
ID PENETRATING EXTREMITY TRAUMA; CT ANGIOGRAPHY; PHYSICAL-EXAMINATION;
ARTERIAL INJURIES; ARTERIOGRAPHY; MANAGEMENT; DIAGNOSIS; BLUNT
AB Background: Artifacts produced by metallic fragments and orthopedic hardware limit the usefulness of conventional computed tomography in many military trauma patients. Contemporary literature suggests that multidetector computed tomographic angiography (MDCTA) by resolving these limitations may provide a useful noninvasive alternative to invasive arteriography. The objective of this study is to review the utility of MDCTA in the evaluation of recent combat casualties with vascular injuries.
Methods: Data on all vascular trauma patients seen by our service has been collected prospectively and entered into a database. A retrospective review was conducted of patients seen from August through December 2006 who Underwent MDCTA. Patient demographics, mechanism of injury, modality of evaluation, and findings were recorded.
Results: Twenty patients underwent MDCTA. Thirteen patients were injured by blast fragments. Seven patients were injured by gunshot wounds. Nineteen of 20 studies were diagnostic and one was judged to be indeterminate. Studies in nine patients identified arterial injuries. Multiple extremities were evaluated with a single study in 16 patients. Fifteen studies assessed the lower extremities, four the tipper extremities and two the neck. Fourteen patients in this series had retained fragments, 10 had external fixators or intramedullary rods, and only 4 had neither retained fragments nor orthopedic hardware. MDCTA allowed for assessment of the arterial runoff despite hardware or fragments in 15 of 16 (94%) patients. Comparative studies were available in four patients in addition to MDCTA. There were no missed injuries in these four patients.
Conclusions: MDCTA yielded high resolution images that were very useful for the delayed evaluation of combat casualties. The presence of metallic fragments or orthopedic hardware did not significantly interfere with MDCTA. It is a reliable and promising alternative to traditional arteriography for evaluating clinically occult vascular trauma.
C1 [White, Paul W.; Gillespie, David L.; Aidinian, Gilbert; Phinney, Samuel; Cox, Mitchell W.; Adams, Eric; Fox, Charles J.] Walter Reed Army Med Ctr, Vasc Surg Serv, Dept Surg, Washington, DC 20307 USA.
[White, Paul W.; Gillespie, David L.; Aidinian, Gilbert; Cox, Mitchell W.; Adams, Eric; Fox, Charles J.] Uniformed Univ Hlth Sci, Div Vasc Surg, Bethesda, MD USA.
[Feurstein, Irwin] Uniformed Univ Hlth Sci, Dept Radiol, Bethesda, MD USA.
[Feurstein, Irwin] Walter Reed Army Med Ctr, Dept Radiol, Washington, DC 20307 USA.
RP White, PW (reprint author), Eisenhower Army Med Ctr, Dept Surg, 300 Hosp Rd, Ft Gordon, GA 30905 USA.
EM paul.william.white@us.army.mil
OI Gillespie, David/0000-0002-4378-9465
NR 25
TC 11
Z9 12
U1 0
U2 2
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0022-5282
J9 J TRAUMA
JI J. Trauma-Injury Infect. Crit. Care
PD JAN
PY 2010
VL 68
IS 1
BP 96
EP 102
DI 10.1097/TA.0b013e318190c4ca
PG 7
WC Critical Care Medicine; Surgery
SC General & Internal Medicine; Surgery
GA 543NR
UT WOS:000273585800019
PM 19779310
ER
PT J
AU Aidinian, G
Fox, CJ
Rasmussen, TE
Gillespie, DL
AF Aidinian, Gilbert
Fox, Charles J.
Rasmussen, Todd E.
Gillespie, David L.
TI Varied presentations of missile emboli in military combat
SO JOURNAL OF VASCULAR SURGERY
LA English
DT Article
ID VENOUS BULLET EMBOLISM; EXTRACTION; WARTIME; TRAUMA
AB Fragment embolization is a rare phenomenon in trauma patients. Although surgical and endovascular management of vascular injuries have evolved significantly, the detection and management of fragment emboli remain a formidable challenge. We reviewed our experience with this entity from December 2001 to March 2008. During this time period, four (1.1%) of 346 US soldiers evacuated to Walter Reed with arterial or venous injuries were discovered to have suffered missile emboli. Venous emboli were treated with anticoagulation and arterial emboli were treated with standard embolectomy techniques with good result. The presentation, diagnosis, and surgical management of these cases are described. (J Vasc Surg 2010;51:214-7.)
C1 [Aidinian, Gilbert; Fox, Charles J.; Gillespie, David L.] Walter Reed Army Med Ctr, Dept Surg, Peripheral Vasc Surg Serv, Washington, DC 20307 USA.
[Fox, Charles J.; Rasmussen, Todd E.; Gillespie, David L.] Uniformed Serv Univ Hlth Sci, Sch Med, Norman Rich Dept Surg, Bethesda, MD 20814 USA.
[Rasmussen, Todd E.] Wilford Hall USAF Med Ctr, San Antonio Mil Vasc Surg Serv, San Antonio, TX 78236 USA.
[Gillespie, David L.] Univ Rochester, Sch Med & Dent, Div Vasc Surg, Rochester, NY USA.
RP Aidinian, G (reprint author), Dept Surg, 5005 N Piedras St, El Paso, TX 79920 USA.
EM gilbert.aidinian@us.army.mil
OI Gillespie, David/0000-0002-4378-9465
NR 11
TC 4
Z9 6
U1 0
U2 0
PU MOSBY-ELSEVIER
PI NEW YORK
PA 360 PARK AVENUE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0741-5214
J9 J VASC SURG
JI J. Vasc. Surg.
PD JAN
PY 2010
VL 51
IS 1
BP 214
EP 217
DI 10.1016/j.jvs.2009.06.054
PG 4
WC Surgery; Peripheral Vascular Disease
SC Surgery; Cardiovascular System & Cardiology
GA 545BX
UT WOS:000273708500037
PM 19703749
ER
PT J
AU Kim, HC
Yang, YC
Chong, ST
Ko, SJ
Lee, SE
Klein, TA
Chae, JS
AF Kim, Heung-Chul
Yang, Young-Cheol
Chong, Sung-Tae
Ko, Sung-Jin
Lee, Sang-Eun
Klein, Terry A.
Chae, Joon-Seok
TI DETECTION OF RICKETTSIA TYPHI AND SEASONAL PREVALENCE OF FLEAS COLLECTED
FROM SMALL MAMMALS IN THE REPUBLIC OF KOREA
SO JOURNAL OF WILDLIFE DISEASES
LA English
DT Article
DE Ctenophthalmus congeneroides; flea; Korea; Rickettsia typhi; Stenoponia
sidimi
ID CTENOCEPHALIDES-FELIS; BORNE; BARTONELLA; EXPOSURE; MURINE
AB Fleas were collected from live-captured small mammals to identify potential flea-borne pathogens, seasonal prevalence of flea species, and host preference as part of the US military rodent-borne diseases surveillance program conducted at one US military installation and 10 military training sites, northern Gyeonggi Province, Republic of Korea. During 2003-04, 948 fleas (563 females and 385 males) were recovered from 2,742 small mammals (seven rodent mid one insectivore species). Apodemus agrarius (striped field mouse) accounted for 88.9% (2,439/2,742) of the small mammals, followed by Crocidura lasiura (4.2%), Mus musculus (2.9%), Microtus fortis (2.2%), Myodes regulus (0.6%), Micromys minutus (0.5%), Tscherskia triton (0.5%), and Rattus norvegicus (0.3%). Small mammal infestation rates (number with fleas/number captured) ranged from 7.7% (M. minutus and T. triton) to 31.3% (M. regulus). Flea indices were highest for M. regulus (0.69/captured rodent), followed by C. lasiura (0.54), M. fortis (0.41), A. agrarius (0.34), and R. norvegicus (0.33). Overall, Ctenophthalmus congeneroides (51.3%) was more frequently collected, followed by Stenoponia sidimi (42.6%), Rhadinopsylla insolita (5.5%), Neopsylla bidentatiformis (0.4%), Rhadinopsylla concava (0.1%), and Doratopsylla coreana (0.1%). Ctenophthalmus congeneroides was more frequently collected from small mammals during the spring and summer, while S. sidimi was more frequently collected during the winter season. Rickettsia typhi, the causative agent of murine typhus, was detected in 3.2% of specimens (7/220 pools from 654 fleas; minimum field infection rate [number of positive pools/total number of fleas] was 1.1%).
C1 [Ko, Sung-Jin; Chae, Joon-Seok] Seoul Natl Univ, Coll Vet Med, Seoul 151742, South Korea.
[Ko, Sung-Jin; Chae, Joon-Seok] Seoul Natl Univ, Program Vet Sci BK21, Seoul 151742, South Korea.
[Kim, Heung-Chul; Chong, Sung-Tae] USA, MEDDAC Korea, Unit 15247, APO, AP 96205 USA.
[Yang, Young-Cheol] Eulji Univ, Dept Environm Hlth, Songnam 461713, South Korea.
[Lee, Sang-Eun] Korea Ctr Dis Control & Prevent, Seoul 122701, South Korea.
[Klein, Terry A.] USA, MEDDAC Korea, Unit 15281, APO, AP 96205 USA.
RP Chae, JS (reprint author), Seoul Natl Univ, Coll Vet Med, Seoul 151742, South Korea.
EM jschae@snu.ac.kr
RI Valle, Ruben/A-7512-2013
FU Center for Health Promotion mid Preventive Medicine, Armed Forces Health
Surveillance Center, Global Emerging Infections Surveillance and
Response System, Silver Spring, Maryland; National Center for Medical
Intelligence, Ft. Detrick, Maryland; BK21 Program for Veterinary
Science, Seoul National University
FX We thank Ms. Suk-Hee Yi for analysis of data and geographic information
system (GIS) mapping. We thank the commanders and their personnel of the
5th mid 38th Medical Detachments, 168th
Multifunctional Medical Battalion, for their support ill conducting
small mammal surveillance. We especially thank Major General Phillip
Volpe, Commander 18th Medical Command, Seoul, Korea,
Lieutenant Colonel Hee-Chom Lee, Force Health Protection,
18th Medical Command, Seoul, Korea, and Joel Gaydos, Global
Emerging Infections Surveillance and Response System, Silver Spring,
Maryland, for their support and constructive criticism. Funding for
portions of this work was provided by the Center for Health Promotion
mid Preventive Medicine, Armed Forces Health Surveillance Center, Global
Emerging Infections Surveillance and Response System, Silver Spring,
Maryland, the National Center for Medical Intelligence, Ft. Detrick,
Maryland, mid the BK21 Program for Veterinary Science, Seoul National
University. The opinions expressed in this article are those of the
authors and do not reflect official policy or positions of the US
Department of Defense, the US Department of the Army, or the US
government.
NR 32
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U1 1
U2 4
PU WILDLIFE DISEASE ASSOC, INC
PI LAWRENCE
PA 810 EAST 10TH ST, LAWRENCE, KS 66044-8897 USA
SN 0090-3558
J9 J WILDLIFE DIS
JI J. Wildl. Dis.
PD JAN
PY 2010
VL 46
IS 1
BP 165
EP 172
PG 8
WC Veterinary Sciences
SC Veterinary Sciences
GA 548JE
UT WOS:000273957100017
PM 20090029
ER
PT J
AU Blank, S
AF Blank, Stephen
BE Freire, MR
Kanet, RE
TI International Rivalries in Eurasia
SO KEY PLAYERS AND REGIONAL DYNAMICS IN EURASIA: THE RETURN OF THE GREAT
GAME
LA English
DT Article; Book Chapter
C1 [Blank, Stephen] USA, War Coll, Strateg Studies Inst, Washington, DC 20310 USA.
[Blank, Stephen] Univ Texas San Antonio, San Antonio, TX USA.
[Blank, Stephen] Univ Calif Riverside, Riverside, CA 92521 USA.
RP Blank, S (reprint author), USA, War Coll, Strateg Studies Inst, Washington, DC 20310 USA.
NR 134
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U1 0
U2 0
PU PALGRAVE
PI BASINGSTOKE
PA HOUNDMILLS, BASINGSTOKE RG21 6XS, ENGLAND
BN 978-0-230-29075-4
PY 2010
BP 29
EP 54
D2 10.1057/9780230290754
PG 26
WC International Relations; Political Science
SC International Relations; Government & Law
GA BVJ22
UT WOS:000291639100004
ER
PT J
AU Piruska, A
Branagan, SP
Minnis, AB
Wang, Z
Cropek, DM
Sweedler, JV
Bohn, PW
AF Piruska, Aigars
Branagan, Sean P.
Minnis, Alexandra B.
Wang, Zhen
Cropek, Donald M.
Sweedler, Jonathan V.
Bohn, Paul W.
TI Electrokinetic control of fluid transport in gold-coated nanocapillary
array membranes in hybrid nanofluidic-microfluidic devices
SO LAB ON A CHIP
LA English
DT Article
ID MASS-LIMITED SAMPLES; IMMOBILIZATION; CHANNELS; SURFACE; AU;
POLY(DIMETHYLSILOXANE); FABRICATION; DESORPTION; MONOLAYERS; SEPARATION
AB The introduction of metallic elements into microfluidic devices that support electrokinetic transport creates several fundamental issues relative to the high conductivity of the metal, which can act as a current shunt, causing profound effects on the transport process. Here we examine the use of Au-coated nanocapillary array membranes (Au NCAMs) as electrically addressable fluid control elements in multi-layer microfluidic architectures. Three alternative methods for fluid injection across Au NCAMs are presented: electrokinetic injection across NCAMs with Au coated on one side (asymmetric NCAM), electrokinetic injection across NCAMs with an embedded Au layer (symmetric NCAM), and field-free electroosmotic flow (EOF) pumping across either type of Au NCAM. Injection efficiency across asymmetric NCAMs depends on the orientation of the asymmetric membrane relative to the driving potential. Efficient injections are enabled when the Au coating is on the receiving side of the membrane, however, some distortion of the injected volume element is observed, especially with large injection potentials. These results for asymmetric membranes agree qualitatively with two-dimensional numerical simulations of injections across a single slit pore, which suggest that the direction-selective transport behavior is related to electrophoretic transport of the anionic fluorescein probe. Reproducible, high quality injections are also achieved in symmetric Au NCAMs having an embedded gold nanoband region within the nanopores. Nanoband Au NCAMs are excellent candidates for a range of applications, including high efficiency electrochemical sensing, electrochemically catalyzed conversion or pretreatment and label free sensing utilizing extraordinary optical transmission. EOF pumping could be an alternative to electrokinetic injections in some applications, however, this approach is only useful for relatively large pore sizes (>400 nm) and presents considerably worse sample spreading via Taylor dispersion.
C1 [Piruska, Aigars; Branagan, Sean P.; Minnis, Alexandra B.; Wang, Zhen; Bohn, Paul W.] Univ Notre Dame, Dept Chem & Biomol Engn, Notre Dame, IN 46556 USA.
[Bohn, Paul W.] Univ Notre Dame, Dept Chem & Biochem, Notre Dame, IN 46556 USA.
[Cropek, Donald M.] USA, Engn Res & Dev Ctr, Champaign, IL 61826 USA.
[Sweedler, Jonathan V.] Univ Illinois, Dept Chem, Urbana, IL 61801 USA.
RP Bohn, PW (reprint author), Univ Notre Dame, Dept Chem & Biomol Engn, Notre Dame, IN 46556 USA.
EM pbohn@nd.edu
RI Sweedler, Jonathan/A-9405-2009
OI Sweedler, Jonathan/0000-0003-3107-9922
FU Department of Energy [DE FG02 07ER15851]; National Science Foundation
[DMI-0328162]
FX Funding by the Strategic Environmental Research and Development Program,
the Department of Energy grant DE FG02 07ER15851 and by the National
Science Foundation under Award No. DMI-0328162 is gratefully
acknowledged. We also thank Greg Janowiak for carrying out computational
simulations.
NR 35
TC 14
Z9 14
U1 4
U2 16
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1473-0197
J9 LAB CHIP
JI Lab Chip
PY 2010
VL 10
IS 10
BP 1237
EP 1244
DI 10.1039/b924164g
PG 8
WC Biochemical Research Methods; Chemistry, Multidisciplinary; Nanoscience
& Nanotechnology
SC Biochemistry & Molecular Biology; Chemistry; Science & Technology -
Other Topics
GA 592EP
UT WOS:000277359600003
PM 20445875
ER
PT S
AU Stann, BL
Dammann, JF
Giza, MM
Jian, PS
Lawler, WB
Nguyen, HM
Sadler, LC
AF Stann, Barry L.
Dammann, John F.
Giza, Mark M.
Jian, Pey-Schuan
Lawler, William B.
Nguyen, Hung M.
Sadler, Laurel C.
BE Turner, MD
Kamerman, GW
TI MEMS-scanned ladar sensor for small ground robots
SO LASER RADAR TECHNOLOGY AND APPLICATIONS XV
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Laser Radar Technology and Applications XV
CY APR 06-09, 2010
CL Orlando, FL
SP SPIE
DE ladar; laser radar; three-dimensional imaging; ground robots
AB The Army Research Laboratory (ARL) is researching a short-range ladar imager for small unmanned ground vehicles for navigation, obstacle/collision avoidance, and target detection and identification. To date, commercial ladars for this application have been flawed by one or more factors including, low pixelization, insufficient range or range resolution, image artifacts, no daylight operation, large size, high power consumption, and high cost. In the prior year we conceived a scanned ladar design based on a newly developed but commercial MEMS mirror and a pulsed Erbium fiber laser. We initiated construction, and performed in-lab tests that validated the basic ladar architecture. This year we improved the transmitter and receiver modules and successfully tested a new low-cost and compact Erbium laser candidate. We further developed the existing software to allow adjustment of operating parameters on-the-fly and display of the imaged data in real-time. For our most significant achievement we mounted the ladar on an iRobot PackBot and wrote software to integrate PackBot and ladar control signals and ladar imagery on the PackBot's computer network. We recently remotely drove the PackBot over an inlab obstacle course while displaying the ladar data real-time over a wireless link. The ladar has a 5-6 Hz frame rate, an image size of 256 (h) x 128 (v) pixels, a 60 degrees x 30 degrees field of regard, 20 m range, eyesafe operation, and 40 cm range resolution (with provisions for super-resolution or accuracy). This paper will describe the ladar design and update progress in its development and performance.
C1 [Stann, Barry L.; Dammann, John F.; Giza, Mark M.; Lawler, William B.; Nguyen, Hung M.; Sadler, Laurel C.] USA, Res Lab, Adelphi, MD 20783 USA.
RP Stann, BL (reprint author), USA, Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
NR 4
TC 4
Z9 4
U1 1
U2 5
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8148-1
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7684
AR 76841E
DI 10.1117/12.850388
PG 12
WC Optics; Imaging Science & Photographic Technology
SC Optics; Imaging Science & Photographic Technology
GA BSM51
UT WOS:000284940500045
ER
PT S
AU Sanamyan, T
Dubinskii, M
AF Sanamyan, T.
Dubinskii, M.
BE Dubinskii, M
Post, SG
TI Cryogenically cooled operation of diode-pumped 3-mu m Er(3+):Y(2)O(3)
ceramic laser
SO LASER TECHNOLOGY FOR DEFENSE AND SECURITY VI
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Laser Technology for Defense and Security VI
CY APR 05-06, 2010
CL Orlando, FL
SP SPIE
DE Lasers; diode-pumped; laser materials; lasers; erbium; ceramic;
cryogenic
ID YAG
AB Reported here is cryogenically-cooled performance of Er(3+)-doped Y(2)O(3) laser at 2.7 mu m based on (4)I(11/2) double right arrow (4)I(13/2) transitions and diode-pumped at 974 nm directly into an upper laser manifold 4I11/2. Efficiency of cryogenically cooled performance is getting close to its quantum defect limited value of similar to 30%.
C1 [Sanamyan, T.; Dubinskii, M.] Army Res Lab, Adelphi, MD 20783 USA.
RP Dubinskii, M (reprint author), Army Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
EM mdubinskiy@arl.army.mil; mdubinskiy@arl.army.mil
NR 13
TC 0
Z9 0
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8150-4
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7686
AR 76860H
DI 10.1117/12.853946
PG 8
WC Optics; Physics, Applied
SC Optics; Physics
GA BSS86
UT WOS:000285717900013
ER
PT S
AU Word-Daniels, A
Newburgh, A
Michael, A
Merkle, L
Dubinskii, M
AF Word-Daniels, Akil
Newburgh, Alex
Michael, Arockiasamy
Merkle, Larry
Dubinskii, Mark
BE Dubinskii, M
Post, SG
TI Comparative study of Ho(3+) doped Yttria (Yttrium oxide), LuAG and YAG
as gain media for eye-safe resonantly pumped lasers
SO LASER TECHNOLOGY FOR DEFENSE AND SECURITY VI
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Laser Technology for Defense and Security VI
CY APR 05-06, 2010
CL Orlando, FL
SP SPIE
DE Holmium; Yttria; LuAG; YAG; absorption cross section; emission cross
section
ID EMISSION CROSS-SECTIONS; ENERGY-LEVELS; ABSORPTION; IONS
AB We present spectroscopic properties and lasing results of Ho(3+)-doped Yttria (Y(2)O(3)), LuAG (Lu(3)Al(5)O(12)), and YAG (Y(3)Al(5)O(12)) at wavelengths beyond 1.6 mu m. High resolution measurements of absorption and stimulated emission cross sections of Ho(3+) in these hosts from 77K to 300K are reported. Laser operation based on (5)I(7) to (5)I(8) transitions of Ho(3+) in these hosts is demonstrated.
C1 [Word-Daniels, Akil; Newburgh, Alex; Michael, Arockiasamy; Merkle, Larry; Dubinskii, Mark] USA, Res Lab, Adelphi, MD 20783 USA.
RP Word-Daniels, A (reprint author), USA, Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
NR 10
TC 1
Z9 1
U1 1
U2 8
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8150-4
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7686
AR 76860F
DI 10.1117/12.853922
PG 7
WC Optics; Physics, Applied
SC Optics; Physics
GA BSS86
UT WOS:000285717900011
ER
PT J
AU Joseph, C
Yaroslavsky, A
Goyette, T
Giles, R
Nixon, W
AF Joseph, Cecil
Yaroslavsky, Anna
Goyette, Thomas
Giles, Robert
Nixon, William
TI REFRACTIVE INDICES OF HUMAN AND MOUSE SKIN CANCERS IN TERAHERTZ
WAVELENGTH RANGE
SO LASERS IN SURGERY AND MEDICINE
LA English
DT Meeting Abstract
CT 29th Annual Conference of the American-Society-for-Laser-Medicine and
Surgery
CY APR 16-18, 2010
CL Phoenix, AZ
SP Amer Soc Laser Med & Surg
C1 Univ Massachusetts Lowell, Submillimeter Wave Technol Lab, Lowell, MA USA.
Harvard Univ, Massachusetts Gen Hosp, Sch Med, Wellman Ctr Photomed, Boston, MA USA.
USA, Natl Ground Intelligence Ctr, Charlottesville, VA USA.
NR 0
TC 0
Z9 0
U1 0
U2 2
PU WILEY-LISS
PI HOBOKEN
PA DIV JOHN WILEY & SONS INC, 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 0196-8092
J9 LASER SURG MED
JI Lasers Surg. Med.
PY 2010
SU 22
BP 16
EP 16
PG 1
WC Dermatology; Surgery
SC Dermatology; Surgery
GA 578LL
UT WOS:000276295000047
ER
PT J
AU Burgess, EB
AF Burgess, Edwin B.
TI Hell in An Loc: The 1972 Easter Invasion and the Battle That Saved South
Viet Nam
SO LIBRARY JOURNAL
LA English
DT Book Review
C1 [Burgess, Edwin B.] USA, Combined Arms Res Lib, Ft Leavenworth, KS USA.
RP Burgess, EB (reprint author), USA, Combined Arms Res Lib, Ft Leavenworth, KS USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU REED BUSINESS INFORMATION
PI NEW YORK
PA 360 PARK AVENUE SOUTH, NEW YORK, NY 10010 USA
SN 0363-0277
J9 LIBR J
JI Libr. J.
PD JAN
PY 2010
VL 135
IS 1
BP 121
EP 121
PG 1
WC Information Science & Library Science
SC Information Science & Library Science
GA 545BA
UT WOS:000273705600233
ER
PT S
AU Das, NC
Change, W
AF Das, Naresh C.
Change, W.
BE Streubel, KP
Joen, H
Tu, LW
Linder, N
TI Grating coupled enhancement of light emission from IR Light emitting
diode devices
SO LIGHT-EMITTING DIODES: MATERIALS, DEVICES, AND APPLICATIONS FOR SOLID
STATE LIGHTING XIV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Light - Emitting Diodes - Materials, Devices, and
Applications for Solid State Lighting XIV
CY JAN 26-28, 2010
CL San Francisco, CA
SP SPIE
DE Surface emitting devices; IR scene projection; 2-D LED array
ID INTERBAND CASCADE LASERS; QUANTUM EFFICIENCY; WAVE-GUIDE;
ELECTROLUMINESCENCE
AB We report here the electroluminescence in the range of 3-4.5 mu m and 6-10 mu m from Sb-based type II interband quantum cascade structure LED devices. We measured the light emission from the top surface of the device with different grating structures. We used different etch depths for the grating formation. The light-current-voltage (LIV) characteristics measured at both room and cryogenic temperatures show that the device with 45 degree angle grating and 1.0 mu m deep etch onto the GaSb surface has the highest emission power.
C1 [Das, Naresh C.; Change, W.] USA, Res Lab, Microphoton Branch, Adelphi, MD 20783 USA.
RP Das, NC (reprint author), USA, Res Lab, Microphoton Branch, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
NR 12
TC 0
Z9 0
U1 1
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8013-2
J9 PROC SPIE
PY 2010
VL 7617
AR 76171W
DI 10.1117/12.847990
PG 10
WC Optics; Physics, Applied
SC Optics; Physics
GA BSG18
UT WOS:000284355700030
ER
PT B
AU Muinonen, K
Tyynela, J
Zubko, E
Videen, G
AF Muinonen, Karri
Tyynela, Jani
Zubko, Evgenij
Videen, Gorden
BE Kokhanovsky, AA
TI Coherent backscattering in planetary regoliths
SO LIGHT SCATTERING REVIEWS 5: SINGLE LIGHT SCATTERING AND RADIATIVE
TRANSFER
SE Springer-Praxis Books in Environmental Sciences
LA English
DT Article; Book Chapter
ID GAUSSIAN RANDOM PARTICLES; DISCRETE-DIPOLE APPROXIMATION; INTERNAL
ELECTRIC-FIELDS; RAY OPTICS APPROXIMATION; SOLAR-SYSTEM OBJECTS;
LIGHT-SCATTERING; NEGATIVE POLARIZATION; SPHERICAL-PARTICLES; DUST
PARTICLES; MINOR PLANETS
C1 [Muinonen, Karri; Tyynela, Jani] Univ Helsinki, Dept Phys, FI-00014 Helsinki, Finland.
[Videen, Gorden] USA, Res Lab, Adelphi, MD 20783 USA.
RP Muinonen, K (reprint author), Univ Helsinki, Dept Phys, POB 64,Gustaf Hallstromin Katu 2A, FI-00014 Helsinki, Finland.
EM muinonen@cc.helsinki.fi; jani.tyynela@helsinki.fi;
evgenij.zubko@helsinki.fi; gorden.videen@arl.army.mil
NR 77
TC 3
Z9 3
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
BN 978-3-642-10335-3
J9 S-P B ENVIRON SCI
PY 2010
BP 477
EP 518
DI 10.1007/978-3-642-10336-0_11
D2 10.1007/978-3-642-10336-0
PG 42
WC Optics; Physics, Applied
SC Optics; Physics
GA BQX91
UT WOS:000282079700011
ER
PT J
AU Jones-Kellogg, R
AF Jones-Kellogg, Rebecca
TI The Anthology in Portugal: A New Approach to the History of Portuguese
Literature in the Twentieth Century
SO LUSO-BRAZILIAN REVIEW
LA English
DT Book Review
C1 [Jones-Kellogg, Rebecca] US Mil Acad, West Point, NY USA.
RP Jones-Kellogg, R (reprint author), US Mil Acad, West Point, NY USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU UNIV WISCONSIN PRESS
PI MADISON
PA JOURNAL DIVISION, 1930 MONROE ST, 3RD FL, MADISON, WI 53711 USA
SN 0024-7413
J9 LUSO-BRAZ REV
JI Luso-Braz. Rev.
PY 2010
VL 47
IS 2
BP 197
EP 199
PG 3
WC Humanities, Multidisciplinary
SC Arts & Humanities - Other Topics
GA 705ZU
UT WOS:000286180800011
ER
PT S
AU Mathaudhu, SN
Nyberg, EA
AF Mathaudhu, Suveen N.
Nyberg, Eric A.
BE Agnew, SR
Neelameggham, NR
Nyberg, EA
Sillekens, WH
TI MAGNESIUM ALLOYS IN U.S. MILITARY APPLICATIONS: PAST, CURRENT AND FUTURE
SOLUTIONS
SO MAGNESIUM TECHNOLOGY 2010
SE Magnesium Technology Series
LA English
DT Proceedings Paper
CT Magnesium Technology Symposium 2010
CY FEB 14-18, 2010
CL Seattle, WA
DE Magnesium; Military; Army; Aircraft; Vehicle
ID STRENGTH
AB Since the 1940's Mg-alloys have been used for military applications, from aircraft components to ground vehicles. The drive for usage was primarily availability and lightweighting of military systems. But the promise of widespread military usage was not met largely based on corrosion and flammability concerns, poor mechanical behavior and inferior ballistic response. This review paper will cover historical, current and potential future applications with a focus on scientific, engineering and social barriers relevant to integration of Mg-alloy. It will also present mechanical and physical property improvements solutions which are currently being developed to address these issues.
C1 [Mathaudhu, Suveen N.] USA, Res Lab, Weap & Mat Res Directorate, Attn RDRL WMM B, Aberdeen Proving Ground, MD 21005 USA.
RP Mathaudhu, SN (reprint author), USA, Res Lab, Weap & Mat Res Directorate, Attn RDRL WMM B, Bldg 4600, Aberdeen Proving Ground, MD 21005 USA.
RI Mathaudhu, Suveen/B-4192-2009
NR 35
TC 7
Z9 7
U1 0
U2 11
PU MINERALS, METALS & MATERIALS SOC
PI WARRENDALE
PA 184 THORN HILL RD, WARRENDALE, PA 15086-7514 USA
SN 1545-4150
BN 978-0-87339-746-9
J9 MAGNESIUM TECHNOLOGY
PY 2010
BP 27
EP 32
PG 6
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA BQO35
UT WOS:000281445500006
ER
PT J
AU Brevett, CAS
Sumpter, KB
AF Brevett, Carol A. S.
Sumpter, Kenneth B.
TI Degradation of the chemical warfare agents HD, GD, thickened GD, and VX
on ambient and moist environmental substrates
SO MAIN GROUP CHEMISTRY
LA English
DT Article; Proceedings Paper
CT Symposium on Sensing and Destroying Chemical Weapons and Pesticides
CY AUG 18-19, 2009
CL Washington, DC
SP Amer Chem Soc, Army Res Off, Defense Threat Reduct Agcy, Edgewood Chem & Biolog Ctr
DE VX; sulfur mustard; Soman; GD; sulfonium ion; thickened GD
ID SULFUR MUSTARD; BIS(2-CHLOROETHYL) SULFIDE; MAS NMR; CONCRETE;
HYDROLYSIS; FATE; SAND
AB The rates, products, and mechanisms of the degradation of the chemical warfare agents GD, thickened GD, HD and VX on environmental substrates were determined using Solid State Magic Angle Spinning Nuclear Magnetic Resonance (SSMAS NMR). Increases in temperature were found to increase the rates of the reactions. The addition of water affected both the rate of the reactions and the products formed. The alkalinity or acidity of the substrate was also observed to affect the products formed and the mechanism of the reaction.
C1 [Brevett, Carol A. S.] SAIC, Edgewood, MD 21040 USA.
[Sumpter, Kenneth B.] USA, Res & Technol Directorate, ECBC, Edgewood, MD USA.
RP Brevett, CAS (reprint author), SAIC, Edgewood, MD 21040 USA.
EM carol.brevett@us.army.mil
NR 31
TC 5
Z9 5
U1 1
U2 8
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 1024-1221
J9 MAIN GROUP CHEM
JI Main Group Chem.
PY 2010
VL 9
IS 3-4
SI SI
BP 205
EP 219
DI 10.3233/MGC-2010-00024
PG 15
WC Chemistry, Multidisciplinary
SC Chemistry
GA 717OK
UT WOS:000287057100002
ER
PT J
AU Wagner, GW
AF Wagner, George W.
TI Hydrogen peroxide-based decontamination of chemical warfare agents
SO MAIN GROUP CHEMISTRY
LA English
DT Article; Proceedings Paper
CT Symposium on Sensing and Destroying Chemical Weapons and Pesticides
CY AUG 18-19, 2009
CL Washington, DC
SP Amer Chem Soc, Army Res Ofc, Defense Threat Reduct Agcy, Edgewood Chem & Biolog Ctr
DE VX; GD; HD; decontamination; perhydrolysis; oxidation; surface
decontamination; Decon Green (R)
ID DEGRADATION-PRODUCTS; VX; OXIDATION; EFFLUENTS; MUSTARD; SARIN
AB Chemical warfare agents (CWA) are rapidly decontaminated using a hydrogen peroxide-based decontamination solution. In the weakly-basic decontaminant (pH 8) - activated and buffered with bicarbonate, molybdate, and citrate - nerve agents such as VX and GD undergo perhydrolysis (OOH(-)) whereas the blister agent HD is catalytically oxidized, primarily, by tetraperoxomolybclate [Mo(OO)(4)(2-)] to the non-vesicant sulfoxide. The decontaminant, once mixed, exhibits remarkable stability, maintaining efficacy (pot-life) for at least 12 h. On non-sorptive, non-porous surfaces such as aluminum, the decontaminant decontaminates VX, GD, and HD to below acceptable levels (i.e., <0.078, 1.67, and 10.0 mu g/cm(2), respectively).
C1 USA, Army Edgewood Chem Biol Ctr, Attn RDCB DRP F, Edgewood, MD 21010 USA.
RP Wagner, GW (reprint author), USA, Army Edgewood Chem Biol Ctr, Attn RDCB DRP F, Edgewood, MD 21010 USA.
EM george.wagner@us.army.mil
NR 24
TC 2
Z9 3
U1 1
U2 20
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 1024-1221
J9 MAIN GROUP CHEM
JI Main Group Chem.
PY 2010
VL 9
IS 3-4
SI SI
BP 257
EP 263
DI 10.3233/MGC-2010-0028
PG 7
WC Chemistry, Multidisciplinary
SC Chemistry
GA 717OK
UT WOS:000287057100005
ER
PT J
AU Griffith, DW
Peery, CA
Daigle, WR
Keefer, ML
Wright, N
AF Griffith, David W.
Peery, Christopher A.
Daigle, William R.
Keefer, Matthew L.
Wright, Nancy
TI Development of a Multipurpose Telemetry and Habitat Survey Instrument
Platform for Small Boats
SO MARINE AND COASTAL FISHERIES
LA English
DT Article
AB We developed a telemetry and remote-sensing instrument platform for a small vessel (6.1-m inboard jetboat) to collect fish telemetry and environmental data in real time as well as to collect data during habitat surveys in the Columbia River estuary. The instrumentation consisted of two acoustic telemetry hydrophones, an acoustic telemetry receiver, a conductivity-temperature-depth probe, an acoustic Doppler current profiler, a differential Global Positioning System, and a side-scan sonar integrated with an onboard portable computer. The system can be used on other vessels, has the flexibility to adapt to a range of telemetry and small oceanographic instrument systems, and allows for deployment and data collection from all instruments simultaneously.
C1 [Griffith, David W.; Peery, Christopher A.; Daigle, William R.; Keefer, Matthew L.; Wright, Nancy] Univ Idaho, Dept Fish & Wildlife Resources, Coll Nat Resources, Fish Ecol Res Lab, Moscow, ID 83844 USA.
RP Griffith, DW (reprint author), USA Corps Engineers, 333 SW 1st Ave, Portland, OR 97204 USA.
EM david.w.griffith@usace.army.mil
FU NOAA Costal Services Center; University of Idaho
FX We thank Pace Wilber and Katherine Nielsen of the NOAA Costal Services
Center for funding. We also thank Antonio Baptista and Michael Wilkin of
the Oregon Graduate Institute, Gene Bock and the crew of the RV
Forerunner in Astoria, Oregon, Jeff Monyak (for help with boat
operations), and members of the University of Idaho Fish Ecology
Research Laboratory (for their expertise and help). Kirk Steinhorst,
James Nagler, and James Congleton of the University of Idaho provided
guidance and support.
NR 7
TC 0
Z9 0
U1 1
U2 7
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
SN 1942-5120
J9 MAR COAST FISH
JI Mar. Coast. Fish.
PY 2010
VL 2
IS 1
BP 299
EP 303
DI 10.1577/C09-016.1
PG 5
WC Fisheries; Marine & Freshwater Biology
SC Fisheries; Marine & Freshwater Biology
GA V20PW
UT WOS:000208152900021
ER
PT J
AU Hosur, M
Barua, R
Zainuddin, S
Jeelani, S
Kumar, A
Trovillion, J
Pereza, Y
AF Hosur, Mahesh
Barua, Rajib
Zainuddin, Shaik
Jeelani, Shaik
Kumar, Ashok
Trovillion, Jonathan
Pereza, Yadira
TI Processing and characterization of epoxy nanocomposites with
MWCNT'S/CNF's using thinky and 3-roll shear mixing techniques
SO MATERIA-RIO DE JANEIRO
LA English
DT Article
DE Nanocomposites; Carbon Nanotubes/Nanofibers; Flexure; Thermo-mechanical
properties
ID MECHANICAL-PROPERTIES; CARBON NANOTUBES; ELECTRICAL-PROPERTIES;
REINFORCED EPOXY; COMPOSITES; MATRIX; FABRICATION; DISPERSION
AB In this work, thinky mixing method was used to disperse multi-walled carbon nanotubes (MWCNT's) and carbon nanofibers (CNF's) in SC-1 epoxy either in isolation or in combination with 3-roll shear mixing. To achieve better dispersion, MWCNT mixing with SC-1 resin directly or pre-mixed with a solvent and then mixed with SC-1 resin after evaporating the solvent. Dynamic mechanical analysis (DMA), thermogravimetric analysis (TGA), flexural tests, electrical conductivity tests and micrographic analysis were performed on neat, 0.2 and 0.4wt% MWCNT/CNF infused SC-1 epoxy to observe the loading effect on thermo-mechanical properties of composites. DMA results indicated improvement on storage modulus and glass transition temperature, Tg, while flexural results exhibited enhanced flexural strength and modulus with up to 0.4wt% MWCNT/CNF infused epoxy resin over neat. TGA results revealed improved residue content but almost constant decomposition temperature for nanophased resin compared to neat. However, these enhancements were observed only up to 0.2 wt. % loading after which the properties were seen to either reduce or not significantly improve. These results indicate that the methods used for dispersion is suitable for low weight percent loading only.
C1 [Barua, Rajib; Zainuddin, Shaik; Jeelani, Shaik] Tuskegee Univ, Ctr Adv Mat, Tuskegee, AL 36088 USA.
[Kumar, Ashok; Trovillion, Jonathan; Pereza, Yadira] USA, Construct Engn Res Lab, Engineer Res & Dev Ctr, Champaign, IL 61821 USA.
EM mhosur@gmail.com
NR 15
TC 0
Z9 0
U1 1
U2 6
PU UNIV FED RIO DE JANEIRO, LAB HIDROGENIO
PI RIO DE JANEIRO RJ
PA CIDADE UNIV, ILHA DO FUNDAO, BLOCO I 2000, S L I 146, RIO DE JANEIRO RJ,
CEP21941-972, BRAZIL
SN 1517-7076
J9 MATERIA-BRAZIL
JI Materia
PY 2010
VL 15
IS 2
BP 278
EP 285
PG 8
WC Materials Science, Multidisciplinary
SC Materials Science
GA 653BS
UT WOS:000282059100025
ER
PT J
AU Nosker, TJ
Lampo, R
AF Nosker, Thomas J.
Lampo, Richard
TI Corrosion-Resistant Thermoplastic Timber Is Constructed of Recycled Milk
Jugs and Automobile Bumpers
SO MATERIALS PERFORMANCE
LA English
DT Article
C1 [Nosker, Thomas J.] Rutgers State Univ, Piscataway, NJ 08855 USA.
[Lampo, Richard] USA, Corps Engineers, Washington, DC USA.
RP Nosker, TJ (reprint author), Rutgers State Univ, Piscataway, NJ 08855 USA.
EM tjnosker@rci.rutgers.edu; Richard.G.Lampo@usace.army.mil
FU Army Chief of Staff for Installation Management's (ACSIM's) Installation
Technology Transition Program (ITTP); Deputy Under Secretary of
Defense's Corrosion Prevention and Control (CPC) Program
FX Project design and construction for the Fort Bragg bridge project were
paid for by the Army Chief of Staff for Installation Management's
(ACSIM's) Installation Technology Transition Program (ITTP) and
structural performance monitoring was funded by the Deputy Under
Secretary of Defense's Corrosion Prevention and Control (CPC) Program.
Both of these programs focus on validating emerging technologies and
processes that demonstrate a potential for cost savings to the Army and
the rest of the DoD through the use of more durable and cost-effective
materials and processes.
NR 2
TC 0
Z9 0
U1 0
U2 2
PU NATL ASSOC CORROSION ENG
PI HOUSTON
PA 1440 SOUTH CREEK DRIVE, HOUSTON, TX 77084-4906 USA
SN 0094-1492
J9 MATER PERFORMANCE
JI Mater. Perform.
PD JAN
PY 2010
VL 49
IS 1
BP 22
EP 27
PG 6
WC Materials Science, Characterization & Testing
SC Materials Science
GA 545YW
UT WOS:000273774300006
ER
PT J
AU Stephenson, LD
Kumar, A
AF Stephenson, L. D.
Kumar, Ashok
TI Advanced Coating Approaches for Outdoor-Exposed Steel Structures
SO MATERIALS PERFORMANCE
LA English
DT Article
AB The U.S. Army Corps of Engineers preserves and maintains many steel-based structures and infrastructure components. Several new approaches for the maintenance of coated steel are commercially available or in the development stages. This article describes three approaches that have been evaluated in the laboratory and are now into field and long-term stability verification studies.
C1 [Stephenson, L. D.; Kumar, Ashok] USA, ERDC, CERL, Corps Engineers, Champaign, IL 61826 USA.
[Kumar, Ashok] Univ Illinois, Chicago, IL 60680 USA.
RP Stephenson, LD (reprint author), USA, ERDC, CERL, Corps Engineers, POB 9005, Champaign, IL 61826 USA.
FU USACERL [DACA8899-C-0004]
FX Part of the self-heating coatings effort is the result of a Small
Business Innovation Research (SBIR) Phase I Study performed by S.
Sarangapani, et al. under USACERL Contract No. DACA8899-C-0004. The
application of the field-test coatings described in this article was
performed by Manta Industrial, Inc., Hammond, Indiana, under Program
Managers Steve Williams and Anthony J. Bochniak. Verification of the
economic calculations and independent coating inspections of the
hangers, deluge tanks, and flight control tower were performed by the
Mark 10 Resource Group, Inc., Richmond, Virginia. The QA testing of the
inlet pipe coating system was performed by Corrosion Control Consultants
& Labs, Inc., Elmhurst, Ilinols. The authors also wish to recognize the
sponsors of the Department of Defense (DoD) Corrosion Prevention and
Control Program: Office of Under Secretary of Defense, Office of
Corrosion Policy and Oversight (Director, Daniel Dunmire); Deputy
Assistant Secretary of the Army Acquisition Policy and Logistics (Army
Corrosion Control Prevention Executive Wimpy D. Pybus); Assistant Chief
of Staff for Installation Management (David Purcel); and Headquarters,
U.S. Army Installation Management Command (Paul Volkman).
NR 15
TC 0
Z9 0
U1 2
U2 2
PU NATL ASSOC CORROSION ENG
PI HOUSTON
PA 1440 SOUTH CREEK DRIVE, HOUSTON, TX 77084-4906 USA
SN 0094-1492
J9 MATER PERFORMANCE
JI Mater. Perform.
PD JAN
PY 2010
VL 49
IS 1
BP 34
EP 39
PG 6
WC Materials Science, Characterization & Testing
SC Materials Science
GA 545YW
UT WOS:000273774300010
ER
PT J
AU Huang, LH
Xie, J
Chen, RR
Chu, D
Hsu, AT
AF Huang, Lihong
Xie, Jian
Chen, Rongrong
Chu, Deryn
Hsu, Andrew T.
TI Nanorod alumina-supported Ni-Zr-Fe/Al2O3 catalysts for hydrogen
production in auto-thermal reforming of ethanol
SO MATERIALS RESEARCH BULLETIN
LA English
DT Article
DE Nanostructures; Electron microscopy; X-ray diffraction; Catalytic
properties
ID NI-BASED CATALYSTS; REACTION-MECHANISM; BIO-ETHANOL; METHANE;
DECOMPOSITION; NANOPARTICLES; ZIRCONIA
AB Nanorod alumina-supported Ni-Zr-Fe/Al2O3 Catalysts were prepared by co-impregnation, characterized by TEM, TIPR, XRD, XPS, and TPD-pyridine, and tested in auto-thermal reforming of ethanol. The characterization results indicate that, with iron and zirconia promotion, the NixFe1-xAl2O4 mixture spinel forms, the valence of the surface Ni species is modified, and the acidity decreases. As a result, during a 30-h test over the Ni-Zr-Fe/Al2O3 catalyst, sintering is restrained, and the selectivity to hydrogen remains around 85.79% without obvious loss, while the un-promoted Ni/Al2O3 shows poor stability and selectivity. (C) 2009 Elsevier Ltd. All rights reserved.
C1 [Hsu, Andrew T.] Indiana Univ Purdue Univ, Purdue Sch Engn & Technol, Lugar Ctr Renewable Energy, Indianapolis, IN 46202 USA.
[Chu, Deryn] USA, Res Lab, Adelphi, MD 20783 USA.
RP Hsu, AT (reprint author), Indiana Univ Purdue Univ, Purdue Sch Engn & Technol, Lugar Ctr Renewable Energy, 799 W Michigan St,ET 215, Indianapolis, IN 46202 USA.
EM anhsu@iupui.edu
FU U.S. Army Research Lab [W911NF-07-2-0036]
FX This work is partially supported by the U.S. Army Research Lab (Grant
No. W911NF-07-2-0036).
NR 23
TC 14
Z9 14
U1 2
U2 19
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0025-5408
J9 MATER RES BULL
JI Mater. Res. Bull.
PD JAN
PY 2010
VL 45
IS 1
BP 92
EP 96
DI 10.1016/j.materresbull.2009.08.022
PG 5
WC Materials Science, Multidisciplinary
SC Materials Science
GA 530HJ
UT WOS:000272579700018
ER
PT J
AU Krakauer, T
Buckley, MJ
Fisher, D
AF Krakauer, Teresa
Buckley, Marilyn J.
Fisher, Diana
TI Proinflammatory Mediators of Toxic Shock and Their Correlation to
Lethality
SO MEDIATORS OF INFLAMMATION
LA English
DT Article
ID STAPHYLOCOCCAL-ENTEROTOXIN-B; BACTERIAL SUPERANTIGENS; CYTOKINE RELEASE;
T-CELLS; MICE; LIPOPOLYSACCHARIDE; ACTIVATION; MECHANISMS; ENDOTOXIN;
DISEASE
AB Bacterial exotoxins and endotoxins both stimulate proinflammatory mediators but the contribution of each individual toxin in the release of mediators causing lethal shock is incompletely understood. This study examines the cytokine response and lethality of mice exposed to varying doses of staphylococcal enterotoxin B (SEB) or lipopolysaccharide (LPS) and their combinations. In vivo, SEB alone induced moderate levels of IL-2 and MCP-1 and all mice survived even with a high dose of SEB (100 mu g/mouse). LPS (80 mu g/mouse) caused 48% lethality and induced high levels of IL-6 and MCP-1. SEB induced low levels of TNF alpha, IL-1, IFN gamma, MIP-2, and LPS synergized with SEB in the expression of these cytokines and that of IL-6 andMCP-1. Importantly, the synergistic action of SEB and LPS resulted in lethal shock and hypothermia. ANOVA of cytokine levels by survival status of SEB-plus-LPS groups revealed significantly higher levels of TNF alpha, IL-6, MIP-2, and MCP-1 in nonsurvivors measured at 8 hours. Significantly higher levels of IFN gamma and IL-2 were observed at 21 hours in nonsurvivors of toxic shock compared to those in survivors. Overall, synergistic action of SEB and LPS resulted in higher and prolonged levels of these key cytokines leading to toxic shock.
C1 [Krakauer, Teresa; Buckley, Marilyn J.] USA, Med Res Inst Infect Dis, Integrated Toxicol Div, Ft Detrick, MD 21702 USA.
[Fisher, Diana] USA, Med Res Inst Infect Dis, Div Stat, Ft Detrick, MD 21702 USA.
RP Krakauer, T (reprint author), USA, Med Res Inst Infect Dis, Integrated Toxicol Div, Ft Detrick, MD 21702 USA.
EM teresa.krakauer@amedd.army.mil
FU Defense Threat Reduction Agency
FX This work was supported by the Defense Threat Reduction Agency. The
opinions, interpretations, as well as conclusions represent those of the
authors and are not necessarily endorsed by the Department of Defense.
NR 27
TC 10
Z9 11
U1 0
U2 4
PU HINDAWI PUBLISHING CORPORATION
PI NEW YORK
PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
SN 0962-9351
J9 MEDIAT INFLAMM
JI Mediat. Inflamm.
PY 2010
AR 517594
DI 10.1155/2010/517594
PG 7
WC Cell Biology; Immunology
SC Cell Biology; Immunology
GA 625TB
UT WOS:000279916900001
ER
PT S
AU Tahmoush, D
AF Tahmoush, Dave
BE Liu, BJ
Boonn, WW
TI CBIR for mammograms using medical image similarity
SO MEDICAL IMAGING 2010: ADVANCED PACS-BASED IMAGING INFORMATICS AND
THERAPEUTIC APPLICATIONS
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Advanced PACS-based Imaging Informatics and Therapeutic Applications
CY FEB 17-18, 2010
CL San Diego, CA
SP SPIE, Medtronic Inc, Aeroflex Inc, Tungsten Heavy Powder Inc
DE CBIR; mammogram; similarity
ID COMPUTER-AIDED DETECTION; RETRIEVAL
AB One fundamental problem remains in the area of medical image analysis and retrieval: how to measure radiologist's perception of similarity between two images. This paper develops a similarity function that is learned from medical annotations and built upon extracted medical features in order to capture the perception of similarity between images with cancer. The technique first extracts high-level medical features from the images to determine a local contextual similarity, but these are unordered and unregistered from one image to the next. Second, the feature sets of the images are fed into the learned similarity function to determine the overall similarity for retrieval. This technique avoids arbitrary spatial constraints and is robust in the presence of noise, outliers, and imaging artifacts. We demonstrate that utilizing unordered and noisy higher-level cancer detection features is both possible and productive in measuring image similarity and developing CBIR techniques.
C1 USA, Res Lab, Adelphi, MD 20783 USA.
RP Tahmoush, D (reprint author), USA, Res Lab, Adelphi, MD 20783 USA.
NR 22
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8029-3
J9 PROC SPIE
PY 2010
VL 7628
AR 76280A
DI 10.1117/12.844247
PG 9
WC Computer Science, Interdisciplinary Applications; Medical Informatics;
Optics; Radiology, Nuclear Medicine & Medical Imaging
SC Computer Science; Medical Informatics; Optics; Radiology, Nuclear
Medicine & Medical Imaging
GA BSK56
UT WOS:000284752500008
ER
PT J
AU Nindl, BC
AF Nindl, Bradley C.
TI Insulin-Like Growth Factor-I, Physical Activity, and Control of Cellular
Anabolism
SO MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
LA English
DT Article
DE IGF-I; CYTOKINES; BIOMARKER; EXERCISE
ID SKELETAL-MUSCLE ADAPTATION; IGF-I; BODY-COMPOSITION; HUMAN SERUM;
EXERCISE; ENERGY; DIFFERENTIATION; MICRODIALYSIS; TESTOSTERONE;
SUPPRESSORS
AB NINDL, B. C. Insulin-Like Growth Factor-I, Physical Activity, and Control of Cellular Anabolism. Med. Sci. Sports Exerc., Vol. 42, No. 1, pp. 35-38, 2010. The underlying mechanisms responsible for mediating the beneficial outcomes of exercise undoubtedly are many, but the insulin-like growth factor-I (IGF-I) system is emerging as an important and central hormonal axis that plays a significant role concerning cellular anabolism. This introductory article summarizes the intent and the content for papers presented as part of a 2008 American College of Sports Medicine national symposium entitled "Insulin-like Growth Factor-I, Physical Activity, and Control of Cellular Anabolism." The individual authors and their papers are as follows: Jan Frystyk authoring "The relationship between exercise and the growth hormone/insulin-like growth factor-I axis," Greg Adams authoring "IGF-I signaling in skeletal muscle and the potential for cytokine interactions," and Brad Nindl authoring "Insulin-like growth factor-I as a biomarker of health, fitness, and training status." These papers focus on 1) different assay methodologies for IGF-I within the paradigm of exercise studies, 2) research demonstrating that intracellular signaling components associated with several proinflammatory cytokines have the potential to interact with anabolic signaling processes in skeletal muscle, and 3) an overview of IGF-I as a biomarker related to exercise training, Muscle and bone remodeling, body composition, cognition, and cancer. When summed in total, the contribution that these papers will make will undoubtedly involve bringing attention to the vast regulatory complexity of the IGF-I system and will hopefully convince the reader that the IGF-I system warrants further detailed scientific inquiry to resolve many unanswered questions and paradoxical experimental findings. The IGF-I system remains one of the most intriguing and captivating marvels of human physiology that seems central in mediating numerous adaptations from physical activity.
C1 USA, Mil Performance Div, Environm Med Res Inst, Natick, MA 01760 USA.
RP Nindl, BC (reprint author), USA, Mil Performance Div, Environm Med Res Inst, Natick, MA 01760 USA.
EM bradley.nindl@na.amedd.army.mil
NR 30
TC 8
Z9 8
U1 0
U2 3
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0195-9131
J9 MED SCI SPORT EXER
JI Med. Sci. Sports Exerc.
PD JAN
PY 2010
VL 42
IS 1
BP 35
EP 38
DI 10.1249/MSS.0b013e3181b07c39
PG 4
WC Sport Sciences
SC Sport Sciences
GA 538RH
UT WOS:000273201200006
PM 20010132
ER
PT J
AU Nindl, BC
Pierce, JR
AF Nindl, Bradley C.
Pierce, Joseph R.
TI Insulin-Like Growth Factor I as a Biomarker of Health, Fitness, and
Training Status
SO MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
LA English
DT Article
DE BIOCOMPARTMENTS; MICRODIALYSIS; BINDING PROTEINS; EXERCISE
ID BONE-MINERAL DENSITY; HEAVY-RESISTANCE EXERCISE; SKELETAL-MUSCLE
ADAPTATION; IGF-BINDING PROTEIN-3; PHYSICAL-ACTIVITY; BODY-COMPOSITION;
ELDERLY-MEN; ENERGY-BALANCE; CARDIOVASCULAR-DISEASE; GENDER-DIFFERENCES
AB NINDL, B. C., and I. R. PIERCE. Insulin-Like Growth Factor I as a Biomarker of Health, Fitness, and Training Status. Med. Sci. Sports Exerc., Vol. 42, No. 1, pp. 39-49, 2010. Whereas there are many varied roles of insulin-like growth factor I (IGF-I), and it exists in different biocompartments, there is abundant scientific evidence demonstrating that IGF-I is an important metabolic biomarker associated with a variety of health- and exercise-related outcomes. In most cases (muscle, bone, tendon, body composition, and cognitive function), elevated IGF-I concentrations are considered beneficial; however, cancer remains a notable exception. Although the fact that both increased and decreased IGF-I concentrations can be considered as reflective of favorable and beneficial health outcomes and may seem as a paradox and even contradictory, it is important to emphasize that, in both cases, measured IGF-I concentrations do offer important insight into physiological processes. The precise and relative role of systemic versus locally produced IGF-I in mediating the outcomes of physical activity is still not clearly delineated, but it does seem as though local IGF-I is consistently upregulated with both acute and chronic exercises; whereas in certain situations, circulating IGF-I may actually decrease. Although perhaps counterintuitive to the known anabolic role that IGF-I exerts, positive neuromuscular training adaptations can occur in the presence of decreases or no changes in circulating IGF-I. These observations, however, should not be interpreted to conclude that the role of circulating IGF-I lacks importance or relevance in contributing to enhanced musculoskeletal health as evidenced by the liver IGF-I-deficient mouse model. Because of the ubiquitous nature of IGF-I, prospective experimental approaches involving physical activity that can sample and measure IGF-I in the body's various biocompartments (i.e., blood, interstitial fluid, muscle) with the most biologically relevant assays are encouraged. We believe that such endeavors will provide greater understanding in the complex role that IGF-I possesses in mediating exercise-induced adaptations.
C1 [Nindl, Bradley C.; Pierce, Joseph R.] USA, Environm Med Res Inst, Mil Performance Div, Natick, MA 01760 USA.
RP Nindl, BC (reprint author), USA, Environm Med Res Inst, Mil Performance Div, Natick, MA 01760 USA.
EM Bradley.nindl@us.army.mil
NR 87
TC 39
Z9 41
U1 0
U2 11
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0195-9131
J9 MED SCI SPORT EXER
JI Med. Sci. Sports Exerc.
PD JAN
PY 2010
VL 42
IS 1
BP 39
EP 49
DI 10.1249/MSS.0b013e3181b07c4d
PG 11
WC Sport Sciences
SC Sport Sciences
GA 538RH
UT WOS:000273201200007
PM 20010131
ER
PT J
AU Ely, BR
Cheuvront, SN
Kenefick, RW
Sawka, MN
AF Ely, Brett R.
Cheuvront, Samuel N.
Kenefick, Robert W.
Sawka, Michael N.
TI Aerobic Performance Is Degraded, Despite Modest Hyperthermia, in Hot
Environments
SO MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
LA English
DT Article
DE CORE TFMPERATURE; HEAT STRAIN; PACING; END SPURT
ID TIME TRIAL PERFORMANCE; HEAT-STRESS; AMBIENT-TEMPERATURE; ANTICIPATORY
REDUCTION; PACING STRATEGY; END-SPURT; EXERCISE; MOVEMENT; CAPACITY
AB ELY, B, R.. S. N. CHEUVRONT, R. W. KENEFICK. and M. N. SAWKA. Aerobic Performance Is Degraded, Despite Modest Hyperthermia, in I-lot Environments. Med. Sci. Sports Exerc., Vol. 42, No. 1. pp. 135-141, 2010. Environmental heat stress degrades aerobic performance however, little research has focused on performance when the selected task elicits modest elevations in core body I a temperature (<38.5 degrees C). Purpose: To determine the effect of environmental beat stress. with modest hyperthermia, on aerobic performance and pacing strategies. Methods: After a 30-min cycling preload at 50% (V)over dotO(2peak) eight euhydrated men performed a 15-min time trial on a cycle ergometer in temperate (TEMP. 21 degrees C. 50% RH) and hot (HOT 40 degrees C, 25% RH) environments. Core and skin temperature (T(c) and T(sk), respectively) and HR were continuously monitored. Performance was assessed by the total work (H) completed in 15 min. Pacing was quantified by comparing the percent difference in actual work performed in each of five 3-min blocks normalized to the mean work performed per 3-min block. Pace over the final 2 ruin was compared with the average pace front minutes 0 to 13 for end spurt analysis. Results: T(c) and HR rose continually throughout both time trials. Peak T, remained modestly elevated in both environments [mean (range): HOT = 38.20 degrees C (37.97-38.42 degrees C): TEMP = 38.11 degrees C (38.07-38.24 degrees C)], whereas T(sk) was higher in HOT (36.19 +/- 0.40 degrees C vs 31.14 +/- 1.14 degrees C), and final HR reached similar to 95% of age-predicted maximum in both environments. Total work performed in HOT (147.7 +/- 23.9 kJ) was similar to 17% less (P < 0.05) than TEMP (177.0 +/- 25.0 kJ). Pace was evenly maintained in TEMP, but in HOT, volunteers were unable to maintain initial pace. slowing progressively over time. A significant end sport was produced in both environments. Conclusions: During a brief aerobic exercise time trial where excessive hyperthermia is avoided, total work is significantly reduced by beat stress because of a gradual slowing of pace
C1 [Ely, Brett R.] USA, Environm Med Res Inst, Thermal & Mt Med Div, Natick, MA 01760 USA.
RP Ely, BR (reprint author), USA, Environm Med Res Inst, Thermal & Mt Med Div, Kansas St, Natick, MA 01760 USA.
EM brett.ely@us.army.mil
NR 36
TC 42
Z9 42
U1 0
U2 12
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0195-9131
J9 MED SCI SPORT EXER
JI Med. Sci. Sports Exerc.
PD JAN
PY 2010
VL 42
IS 1
BP 135
EP 141
DI 10.1249/MSS.0b013e3181adb9fb
PG 7
WC Sport Sciences
SC Sport Sciences
GA 538RH
UT WOS:000273201200018
PM 20010120
ER
PT S
AU Becker, JJ
AF Becker, Jennifer J.
BE George, T
Islam, MS
Dutta, AK
TI Opportunities in Basic Research for Battlefield Sensing (Overview)
SO MICRO- AND NANOTECHNOLOGY SENSORS, SYSTEMS, AND APPLICATIONS II
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Micro- and Nanotechnology Sensors, Systems, and
Applications II
CY APR 05-09, 2010
CL Orlando, FL
SP SPIE
DE chemical sensing; surface chemistry; molecular recognition
AB Battlefield sensing is a complex, crucial tool that allows the soldier to sense/detect potential threats in order to maintain a safe environment. Its technological development is typically driven by a myriad of field requirements. A variety of chemical sensing technologies currently exist, and there are also many prospects for the development of new, revolutionary technologies.
C1 USA, Res Off, Res Triangle Pk, NC 27709 USA.
RP Becker, JJ (reprint author), USA, Res Off, POB 12211, Res Triangle Pk, NC 27709 USA.
NR 0
TC 0
Z9 0
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8143-6
J9 PROC SPIE
PY 2010
VL 7679
BP XVII
EP XVII
PG 1
WC Nanoscience & Nanotechnology; Remote Sensing; Optics
SC Science & Technology - Other Topics; Remote Sensing; Optics
GA BSS26
UT WOS:000285623300001
ER
PT S
AU Beekman, DW
AF Beekman, Daniel W.
BE George, T
Islam, MS
Dutta, AK
TI Micro Air Vehicle Endurance vs Battery Size
SO MICRO- AND NANOTECHNOLOGY SENSORS, SYSTEMS, AND APPLICATIONS II
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Micro- and Nanotechnology Sensors, Systems, and
Applications II
CY APR 05-09, 2010
CL Orlando, FL
SP SPIE
DE Micro Air Vehicle; MAV; rotorcraft; crawler; endurance; battery
AB Micro Air Vehicles (MAVs) operate with many inter-related constraints, including size, weight, power, processing, and communications bandwidth. Basic equations can be used to provide initial estimates of subsystem parameters that are consistent with the targeted size and related parameters. For most current MAVs, the power source of choice is batteries, and the choice of battery type and size will determine the maximum duration of a flight. In this study, first order models for both rotary wing MAVs and crawling ground platforms are used to determine the optimum battery size for maximum endurance, given typical parameter values for a 15-cm scale robotic platform. Results indicate that most micro robotic platforms use battery sizes significantly different than optimum.
C1 USA, Res Lab, RDRL SEE I, Adelphi, MD 20783 USA.
RP Beekman, DW (reprint author), USA, Res Lab, RDRL SEE I, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
NR 6
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8143-6
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7679
AR 767910
DI 10.1117/12.849564
PG 5
WC Nanoscience & Nanotechnology; Remote Sensing; Optics
SC Science & Technology - Other Topics; Remote Sensing; Optics
GA BSS26
UT WOS:000285623300031
ER
PT S
AU Fountain, AW
Guicheteau, JA
Pearman, WF
Chyba, TH
Christesen, SD
AF Fountain, Augustus Way, III
Guicheteau, Jason A.
Pearman, William F.
Chyba, Thomas H.
Christesen, Steven D.
BE George, T
Islam, MS
Dutta, AK
TI Long Range Standoff Detection of Chemical, Biological and Explosive
Hazards on Surfaces
SO MICRO- AND NANOTECHNOLOGY SENSORS, SYSTEMS, AND APPLICATIONS II
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Micro- and Nanotechnology Sensors, Systems, and
Applications II
CY APR 05-09, 2010
CL Orlando, FL
SP SPIE
DE Standoff Detection; Raman; Fluorescence; LIBS; Ultra-violet
ID UV RESONANCE RAMAN; WARFARE AGENTS; DEGRADATION-PRODUCTS; NERVE AGENTS;
FLUORESCENCE; SPECTROSCOPY; LASER; IDENTIFICATION; SPECTROMETER;
EXCITATION
AB Fielded surface detection systems rely on contact with either the liquid contamination itself or the associated chemical vapor above the contaminated surface and do not provide a standoff or remote detection capability. Conversely, standoff chemical vapor sensing techniques have not shown efficacy in detecting those contaminants as liquids or solids on surfaces. There are a number of optical or spectroscopic techniques that could be applied to this problem of standoff chemical detection on surfaces. The three techniques that have received the most interest and development are laser induced breakdown spectroscopy (LIBS), fluorescence, and Raman spectroscopy. Details will be presented on the development of these techniques and their applicability to detecting CBRNE contamination on surfaces.
C1 [Fountain, Augustus Way, III; Guicheteau, Jason A.; Christesen, Steven D.] USA, RDECOM, Aberdeen Proving Ground, MD 21010 USA.
RP Fountain, AW (reprint author), USA, RDECOM, Aberdeen Proving Ground, MD 21010 USA.
EM augustus.w.fountain@us.army.mil
NR 39
TC 6
Z9 6
U1 1
U2 6
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8143-6
J9 PROC SPIE
PY 2010
VL 7679
AR 76790H
DI 10.1117/12.851785
PG 13
WC Nanoscience & Nanotechnology; Remote Sensing; Optics
SC Science & Technology - Other Topics; Remote Sensing; Optics
GA BSS26
UT WOS:000285623300014
ER
PT S
AU Morgan, B
Bedair, S
Pulskamp, JS
Polcawich, RG
Meyer, C
Dougherty, C
Lin, X
Arnold, D
Bashirullah, R
Miller, R
Roosz, M
AF Morgan, Brian
Bedair, Sarah
Pulskamp, Jeffrey S.
Polcawich, Ronald G.
Meyer, Christopher
Dougherty, Christopher
Lin, Xue
Arnold, David
Bashirullah, Rizwan
Miller, Ryan
Roosz, Mark
BE George, T
Islam, MS
Dutta, AK
TI Power Considerations for MAST Platforms
SO MICRO- AND NANOTECHNOLOGY SENSORS, SYSTEMS, AND APPLICATIONS II
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Micro- and Nanotechnology Sensors, Systems, and
Applications II
CY APR 05-09, 2010
CL Orlando, FL
SP SPIE
DE autonomous systems; UAV; mobility; power sources; power conversion; MEMS
passives
ID DC-DC CONVERTERS; TECHNOLOGY; INDUCTORS; CELLS
AB Scaling down autonomous robotic systems introduces numerous challenges in mechanical design, electrical/sensor subsystems, and autonomous control. One particularly daunting task is the design of the power system, since this will ultimately limit all microrobot or micro-UAV's operations. Power sources like lithium polymer batteries possess sufficient power density for basic mobility (walking, fixed wing flight, flapping/hovering), but improved power sources are needed that offer increased energy density in order to extend mission lifetimes - preferably pushing from minutes to multiple hours or days. Additionally, the source power must be efficiently converted and distributed to the various microrobot subsystems. Each system may require a different voltage, current, and duty cycle. This paper will review some of the power-specific challenges related to developing small, mobile autonomous systems.
C1 [Morgan, Brian; Bedair, Sarah; Pulskamp, Jeffrey S.; Polcawich, Ronald G.; Meyer, Christopher] USA, Res Lab, Adelphi, MD 20783 USA.
RP Morgan, B (reprint author), USA, Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
EM brian.morgan6@arl.army.mil
RI Bedair, Sarah/D-9130-2013;
OI Dougherty, Christopher/0000-0001-7302-5573
NR 31
TC 2
Z9 2
U1 0
U2 9
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8143-6
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7679
AR 76790V
DI 10.1117/12.849515
PG 12
WC Nanoscience & Nanotechnology; Remote Sensing; Optics
SC Science & Technology - Other Topics; Remote Sensing; Optics
GA BSS26
UT WOS:000285623300026
ER
PT J
AU Moody, KL
Driks, A
Rother, GL
Cote, CK
Brueggemann, EE
Hines, HB
Friedlander, AM
Bozue, J
AF Moody, K. L.
Driks, A.
Rother, G. L.
Cote, C. K.
Brueggemann, E. E.
Hines, H. B.
Friedlander, A. M.
Bozue, J.
TI Processing, assembly and localization of a Bacillus anthracis spore
protein
SO MICROBIOLOGY-SGM
LA English
DT Article
ID COAT PROTEIN; IMMUNODOMINANT PROTEIN; BACTERIAL ENDOSPORE; SUBTILIS
SPORES; GUINEA-PIGS; EXOSPORIUM; CEREUS; GENE; SURFACE; BCLA
AB All Bacillus spores are encased in macromolecular shells. One of these is a proteinacious shell called the coat that, in Bacillus subtilis, provides critical protective functions. The Bacillus anthracis spore is the infectious particle for the disease anthrax. Therefore, the coat is of particular interest because it may provide essential protective functions required for the appearance of anthrax. Here, we analyse a protein component of the spore outer layers that was previously designated BxpA. Our data indicate that a significant amount of BxpA is located below the spore coat and associated with the cortex. By SDS-PAGE, BxpA migrates as a 9 kDa species when extracted from Sterne strain spores, and as 11 and 14 kDa species from Ames strain spores, even though it has predicted masses of 27 and 29 kDa, respectively, in these two strains. We investigated the possibility that BxpA is subject to post-translational processing as previously suggested. In B. subtilis, a subset of coat proteins is proteolysed or cross-linked by the spore proteins YabG or TgI, respectively. To investigate the possibility that similar processing occurs in B. anthracis, we generated mutations in the yabG or tgl genes in the Sterne and Ames strains and analysed the consequences for BxpA assembly by SDS-PAGE. We found that in a tgl mutant of B. anthracis, the apparent mass of BxpA increased. This is consistent with the possibility that TgI directs the cross-linking of BxpA into a form that normally does not enter the gel. Unexpectedly, the apparent mass of BxpA also increased in a yabG mutant, suggesting a relatively complex role for proteolysis in spore protein maturation in B. anthracis. These data reveal a previously unobserved event in spore protein maturation in B. anthracis. We speculate that proteolysis and cross-linking are ubiquitous spore assembly mechanisms throughout the genus Bacillus.
C1 [Moody, K. L.; Rother, G. L.; Cote, C. K.; Bozue, J.] USA, Med Res Inst Infect Dis, Bacteriol Div, Ft Detrick, MD 21702 USA.
[Driks, A.] Loyola Univ, Med Ctr, Dept Microbiol & Immunol, Maywood, IL 60153 USA.
[Brueggemann, E. E.; Hines, H. B.] USA, Med Res Inst Infect Dis, Integrated Toxicol Div, Ft Detrick, MD 21702 USA.
[Friedlander, A. M.] USA, Med Res Inst Infect Dis, Ft Detrick, MD 21702 USA.
RP Bozue, J (reprint author), USA, Med Res Inst Infect Dis, Bacteriol Div, 1425 Porter St, Ft Detrick, MD 21702 USA.
EM joel.a.bozue@us.army.mil
FU In-House Laboratory Innovative Research Award from the Department of the
Al-Ill ' V under [92490]
FX We thank Heather Schmadel and George Rush for their technical
assistance, Robert Pope and Kathy Kuehl foradvice and preparing the EM
samples, and Lorraine Farinick for assistance Nvith the figures. The
research described herein was sponsored by all In-House Laboratory
Innovative Research Award from the Department of the Al-Ill ' V under
Project # 92490. Research was conducted in compliance Nvith the Animal
Welfare Act and other federal statute,; and regulations relating to
animals and experiments involving animals and adheres to the principles
stated in the Guide for the Care and Use of Laboratory Animals, National
Research Council, 1996. The facility where this research Nvas conducted
is fully accredited by the Association for Assessment and Accreditation
of Laboratory Animal Care International. Opinions, interpretations,
conclusions, and recorninendations are those of the authors and are not
necessarily endorsed by the US Army.
NR 57
TC 8
Z9 8
U1 0
U2 5
PU SOC GENERAL MICROBIOLOGY
PI READING
PA MARLBOROUGH HOUSE, BASINGSTOKE RD, SPENCERS WOODS, READING RG7 1AG,
BERKS, ENGLAND
SN 1350-0872
J9 MICROBIOL-SGM
JI Microbiology-(UK)
PD JAN
PY 2010
VL 156
BP 174
EP 183
DI 10.1099/mic.0.033407-0
PN 1
PG 10
WC Microbiology
SC Microbiology
GA 553LP
UT WOS:000274368500019
PM 19833771
ER
PT S
AU Cirincione, G
Krishnamurthy, S
La Porta, TF
Govindan, R
Mohapatra, P
AF Cirincione, Greg
Krishnamurthy, Srikanth
La Porta, Thomas F.
Govindan, Ramesh
Mohapatra, Prasant
GP IEEE
TI Impact of Security Properties on the Quality of Information in Tactical
Military Networks
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
DE security; quality of information; capacity; provenance; credibility
AB The goal of a tactical military network is to provide information superiority over an opposing force. This information superiority increases mission tempo if the information can be used to make correct decisions within time constraints. To achieve this goal, a sufficient amount of information must be received with a required quality. The information quality implicitly accounts for the level of security provided. In this paper we examine the dependencies between security and other factors that affect the information quality. We incorporate the notion of the amount of information of sufficient quality received over time as the operational information content capacity. We discuss the complex tradeoffs that arise while providing security properties: the decision maker may require certain security properties to use information, but the provision of such properties may degrade the ability of the network to deliver the required amount of information in time, thus lowering the operational information content capacity of the network.
C1 [Cirincione, Greg] USA, Res Lab, Washington, DC 20310 USA.
[Govindan, Ramesh] Univ So Calif, Los Angeles, CA USA.
[Krishnamurthy, Srikanth] Univ Calif Riverside, Riverside, CA USA.
[La Porta, Thomas F.] Penn State Univ, State Coll, PA USA.
[Mohapatra, Prasant] Univ Calif Davis, Davis, CA USA.
RP Cirincione, G (reprint author), USA, Res Lab, Washington, DC 20310 USA.
EM cirincione@arl.army.mil; krish@cs.ucr.edu; tlp@cse.psu.edu;
ramesh@usc.edu; prasant@cs.ucdavis.edu
FU Army Research Laboratory and was accomplished [W911NF-09-2-0053]
FX Research was sponsored by the Army Research Laboratory and was
accomplished under Cooperative Agreement Number W911NF-09-2-0053. The
views and conclusions contained in this document are those of the
authors and should not be interpreted as representing the official
policies, either expressed or implied, of the Army Research Laboratory
or the U.S. Government. The U.S. Government is authorized to reproduce
and distribute reprints for Government purposes notwithstanding any
copyright notation here on.
NR 9
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 1
EP 6
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200327
ER
PT S
AU Caruso, F
Chen, T
Fiuk, M
Kaul, V
Hokelek, I
Parmeswaran, K
Sultan, F
Samtani, S
Shur, D
Bowcock, J
Thomas, S
AF Caruso, Francesco
Chen, Ta
Fiuk, Marek
Kaul, Vikram
Hokelek, Ibrahim
Parmeswaran, Kirthika
Sultan, Florin
Samtani, Sunil
Shur, David
Bowcock, Jeff
Thomas, Shery
GP IEEE
TI Intelligent Content Transformation in Tactical Wireless Networks
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
DE filtering; QoS; situational awareness; bandwidth; persistence; replay;
XMPP Chat; SOA; transcoding; priority
AB Mobile tactical MANETs are interconnected via a quasi-static backbone network (QSN) that is relatively stationary and has substantial radio bandwidth capability. Because of high mobility and terrain sensitivity, the bandwidth available to mobile nodes within the MANET may vary significantly over time. During the periods where the bandwidth available is reduced, MANET nodes may be unable to handle the information load sourced from or distributed via the QSN. Furthermore, end-user devices and end-users themselves may have limited capability to receive/process data. Thus, the data delivered to tactical MANETs needs to be carefully managed. In previous work, we proposed Heterogeneous Intelligent Filtering (HIF) in multi-domain heterogeneous networks, for intelligent active filtering and transformation of the data to match network and end-user capacity. In this work(2), we report on extending HIF to militarily important applications such as XMPP-based chat, SOA Web-services, and VOIP applications. We also provide experimental results based on outdoor testing of the filtering and content adaptation capabilities of HIF agents deployed in an HMS radio inter-network at Ft. Monmouth, NJ.
C1 [Caruso, Francesco; Chen, Ta; Fiuk, Marek; Kaul, Vikram; Hokelek, Ibrahim; Parmeswaran, Kirthika; Sultan, Florin; Samtani, Sunil; Shur, David] Telcordia Technol Inc, Appl Res, Piscataway, NJ 08854 USA.
[Bowcock, Jeff; Thomas, Shery] US Army, CERDEC, Ft Monmouth, NJ 07703 USA.
RP Shur, D (reprint author), Telcordia Technol Inc, Appl Res, Piscataway, NJ 08854 USA.
NR 16
TC 1
Z9 1
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 189
EP 194
DI 10.1109/MILCOM.2010.5680403
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200087
ER
PT S
AU Chen, T
Kaul, V
Sultan, F
Parmeswaran, K
Samtani, S
Shur, D
Kiernan, T
Thomas, S
Zimmerman, W
AF Chen, Ta
Kaul, Vikram
Sultan, Florin
Parmeswaran, Kirthika
Samtani, Sunil
Shur, David
Kiernan, Thomas
Thomas, Shery
Zimmerman, Will
GP IEEE
TI Intelligent Application Persistence in Tactical Wireless Networks
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
DE delay tolerant; disruption; situational awareness; bandwidth;
persistence; replay; VOIP; Android
AB Mobile tactical MANETs are subject to periods of intermittent connectivity and transient events of significant packet loss. Because of such disruptions, protocols and technologies have been proposed that are disruption and delay tolerant. One class of such systems works by storing messages/packets in the network. If connectivity to neighbors is lost, missing messages may be delivered when connectivity to neighbors is restored. This delay tolerant networking (DTN) technology aims to reliably deliver all the data that a source directs towards a receiver node. We suggest that in some cases it is of little utility and may even be counter-productive to persist and deliver all packets lost during a disruption episode. For example, in situational awareness applications, retransmitting many seconds or minutes of lost GPS tracks is not appropriate. Instead a snapshot of the current position of all tracked entities is preferable. Similarly in a multimedia stream or VOIP call, just the key missing information should be replayed. Not only does full retransmission of all missing packets introduce delays during retransmission, but also the bandwidth consumed during retransmission is wasted. Note that each application may have different semantics. Therefore determining what data is appropriate to deliver for a given application in order to recover from a temporary disconnection requires knowledge of the application semantics. In previous work, we proposed Heterogeneous Intelligent Filtering (HIF), a technology that intelligently filters and transforms data to match network capacity and end-user capability. In HIF, extraneous information not needed by the end-user is filtered by HIF agents. In this work(2), we show how the HIF concept can be extended to the data and information persisted during disruptions. The information stored for later retransmission to previously disconnected receivers may consist of application state snapshots, summaries or transcripts of the missing data, or just those portions of a media stream judged to be relevant to the user at a given point in time. We describe our work on application aware persistence for real-time multimedia and tactical situational awareness applications. The middleware infrastructure of the HIF systems reported on in previous work is extended to support application aware persistence. We analyze the performance benefit of application persistence on a tactical situational awareness scenario. Application persistence is particularly useful when the end-device may be limited in its processing power and ability to render data, since it reduces the demands on the client application. Accordingly, we also illustrate the usefulness of our application aware persistence middleware in supporting multimedia and situational awareness applications implemented on handheld Android devices.
C1 [Chen, Ta; Kaul, Vikram; Sultan, Florin; Parmeswaran, Kirthika; Samtani, Sunil; Shur, David] Telcordia Technol, Appl Res, Piscataway, NJ 08854 USA.
[Kiernan, Thomas; Thomas, Shery; Zimmerman, Will] US Army, CERDEC, Ft Monmouth, NJ 07703 USA.
RP Shur, D (reprint author), Telcordia Technol, Appl Res, Piscataway, NJ 08854 USA.
EM dshur@research.telcordia.com
NR 10
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 195
EP 200
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200112
ER
PT S
AU Moran, T
Heide, D
Shah, S
AF Moran, Thomas
Heide, David
Shah, Swati
GP IEEE
TI An Overview of the Tactical Secure Voice Cryptographic Interoperability
Specification
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
AB The Tactical Secure Voice Working Group was formed by the National Security Agency in 2008 to ensure that modernized tactical secure voice devices will be interoperable across the Department of Defense. The Naval Research Laboratory was tasked by the working group to develop the Tactical Secure Voice Cryptographic Interoperability Specification (TSVCIS), which became an official National Security Agency (NSA) document in July of 2009.
The TSVCIS consists of two documents, one classified and the other unclassified. These documents define the voice encoding, encryption, framing, synchronization, key management, and other functions for tactical secure voice and data radio communications.
This paper describes the unclassified portion of the TSVCIS and explains some of the improvements over the legacy tactical secure voice systems. It also describes how the modernized secure voice modes can provide even wider benefits in the future.
C1 [Moran, Thomas; Heide, David; Shah, Swati] USN, Res Lab, Adelphi, MD 20783 USA.
RP Moran, T (reprint author), USN, Res Lab, Adelphi, MD 20783 USA.
NR 0
TC 1
Z9 1
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 213
EP 218
DI 10.1109/MILCOM.2010.5680482
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200153
ER
PT S
AU Torrieri, D
AF Torrieri, Don
GP IEEE
TI The Radiometer and Its Practical Implementation
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
ID ENERGY DETECTION; SIGNAL-DETECTION; COGNITIVE RADIO; SPECTRUM; NOISE
AB The radiometer or energy detector is useful in detecting target signals about which little is known. A practical radiometer is described and analyzed for the AWGN and Rayleigh channels with and without diversity combining. The practical implications of bandwidth, the number of samples processed, and imperfect noise-power estimation are examined. The radiometer has been criticized because of its alleged sensitivity to imperfect noise-power estimates. Conditions under which the noise-power estimation error is small are discussed. It is shown that the effects of this error on the probability of detection of the target signal can be kept small.
C1 USA, Res Lab, Adelphi, MD 20783 USA.
RP Torrieri, D (reprint author), USA, Res Lab, Adelphi, MD 20783 USA.
EM dtorr@arl.army.mil
NR 16
TC 8
Z9 8
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 304
EP 310
DI 10.1109/MILCOM.2010.5680312
PG 7
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200022
ER
PT S
AU Ouyang, F
Hampton, J
Suoto, H
Nichols, R
AF Ouyang, Feng
Hampton, Jerry
Suoto, Henry
Nichols, Robert
GP IEEE
TI Robust Cognitive Networks Interfacing with Cognitive Antennas
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
AB Cognitive Radios (CRs) are able to operate in a large attribute space and operational parameters are chosen from this space, depending on the sensed environment, to achieve best performance. In this paper we demonstrate that such choice of parameters and the attribute space impact robustness of the network under electronic and information attacks. Such impact results in various tradeoffs to be considered when designing a policy-based CR system. More specifically, we discuss two of the design issues: attribute space size and network cluster size based on these tradeoff considerations. Discussions in the paper show that security and robustness should become an integral part of CR design considerations.(1)
C1 [Ouyang, Feng; Hampton, Jerry; Nichols, Robert] Johns Hopkins Univ, Appl Phys Lab, Johns Hopkins Rd, Laurel, MD 20723 USA.
[Suoto, Henry] US Army, Space & Terrestrial Commun Directorate, CERDEC, Ft Monmouth, NJ USA.
RP Ouyang, F (reprint author), Johns Hopkins Univ, Appl Phys Lab, Johns Hopkins Rd, Laurel, MD 20723 USA.
EM Feng.Ouyang@jhuapl.edu; Jerry.Hampton@jhuapl.edu;
Hien.Suoto@us.army.mil; Robert.Nichols@jhuapl.edu
NR 14
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 429
EP 434
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200021
ER
PT S
AU Hamilton, S
Imsand, E
Hamilton, JA
AF Hamilton, Stephen
Imsand, Eric
Hamilton, John A., Jr.
GP IEEE
TI Increasing Organization Efficiency Through Software Architecture Case
Study of the JTF-GNO
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
DE Software architecture; web collaboration; software components;
communication management; software model
AB The Joint Task Force Global Network Operations (JTF-GNO) center is a subset of the Defense Information Systems Agency that is directly in charge of the security and architecture of the Department of Defense Global Information Grid. Since the inception of the JTF-GNO, the architecture has continually changed due to technical advances and increasing security concerns. Although many new systems have been added to increase efficiency, ad-hoc processes remain that should be automated and added to the overall architecture. Many new software technologies can be utilized in order to streamline current processes. The first part of this paper will lay out the architecture that is currently in place. This will include the systems in place that process machine and human generated reports from all subordinate units and agencies, and the systems used to present this data and report it to the Strategic Command. Once this architecture is presented, pieces found that are manual or ad-hoc will be examined to determine if they can be automated. Finally, an architecture will be presented as a "way ahead" for the JTF-GNO that will aid in increasing the efficiency and effectiveness of the JTF-GNO center.
C1 [Hamilton, Stephen] US Mil Acad, Dept Elect Engn & Comp Sci, West Point, NY 10996 USA.
[Imsand, Eric; Hamilton, John A., Jr.] Auburn Univ, Dept Comp Sci & Software, Auburn, AL USA.
RP Hamilton, S (reprint author), US Mil Acad, Dept Elect Engn & Comp Sci, West Point, NY 10996 USA.
EM stephen.hamilton@us.army.mil; hamilton@auburn.edu; imsanes@auburn.edu
NR 14
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 464
EP 469
DI 10.1109/MILCOM.2010.5680366
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200017
ER
PT S
AU Yu, PL
Sadler, BM
AF Yu, Paul L.
Sadler, Brian M.
GP IEEE
TI Received Signal Strength Gradient Estimation for Mobile Networks
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
AB This paper considers the question: As a receiver moves along a trajectory, is its received signal strength (RSS) increasing or decreasing? This is an important question for mobile receivers to answer in order to maintain or improve connectivity within the network. When signal strength maps are unavailable a priori, a receiver decides the answer based on its observations. We derive the maximum likelihood estimate (MLE) of signal strength at a particular location in Rayleigh/Rician fading and additive Gaussian noise. We estimate the slope of the gradient by making RSS estimates at multiple locations. By making estimates of the MLE variance, we can derive confidence in the gradient, which can be used to decide future movements.
C1 [Yu, Paul L.; Sadler, Brian M.] USA, Res Lab, Adelphi, MD 20783 USA.
RP Yu, PL (reprint author), USA, Res Lab, Adelphi, MD 20783 USA.
NR 12
TC 2
Z9 2
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 519
EP 523
DI 10.1109/MILCOM.2010.5680357
PG 5
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200145
ER
PT S
AU Sheng, ZG
Ko, BJ
Swami, A
Lee, KW
Leung, KK
AF Sheng, Zhengguo
Ko, Bong Jun
Swami, Ananthram
Lee, Kang-Won
Leung, Kin K.
GP IEEE
TI Power Efficiency of Decode-And-Forward Cooperative Relaying
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
ID AD-HOC NETWORKS; WIRELESS NETWORKS; DIVERSITY; ERROR
AB We investigate fundamental characteristics of cooperative transmission in terms of power efficiency. By introducing the concept of "cooperative region", we evaluate the average power efficiency which is defined as the ratio of total consumed transmit power with cooperation to that of direct transmission and show how the average performance depends upon the QoS requirement, distance between source and destination and on node density. Further, we propose a dynamic cooperation scheme that combines both cooperative and direct transmission. Analytical results are supplemented by simulation results to demonstrate the energy saving of cooperation transmission.
C1 [Sheng, Zhengguo; Leung, Kin K.] Imperial Coll, Dept Elect & Elect Engn, London SW7 2AZ, England.
[Ko, Bong Jun; Lee, Kang-Won] IBM Corp, TJ Watson Res Ctr, Armonk, NY 10504 USA.
[Swami, Ananthram] US Army, Res Lab, Adelphi, MD USA.
RP Sheng, ZG (reprint author), Imperial Coll, Dept Elect & Elect Engn, London SW7 2AZ, England.
EM zhengguo.sheng06@imperial.ac.uk; bongjun_ko@us.ibm.com;
ananthram.swami@us.army.mil; kangwon@us.ibm.com;
kin.leung@imperial.ac.uk
FU US Army Research laboratory; UK Ministry of Defence [W911NF-06-3-0001]
FX This research was sponsored by US Army Research laboratory and the UK
Ministry of Defence and was accomplished under Agreement Number
W911NF-06-3-0001. The views and conclusions contained in this document
are those of the authors and should not be interpreted as representing
the official policies, either expressed or implied, of the US Army
Research Laboratory, the U.S. Government, the UK Ministry of Defense, or
the UK Government. The US and UK Governments are authorized to reproduce
and distribute reprints for Government purposes notwithstanding any
copyright notation hereon.
NR 14
TC 1
Z9 1
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 543
EP 548
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200257
ER
PT S
AU Chan, KV
Swami, A
Zhao, Q
Scaglione, A
AF Chan, Kevin
Swami, Ananthram
Zhao, Qing
Scaglione, Anna
GP IEEE
TI CONSENSUS ALGORITHMS OVER FADING CHANNELS
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
ID DISTRIBUTED CONSENSUS; SENSOR NETWORKS
AB Consensus algorithms permit the computation of global statistics via local communications and without centralized control. We extend previous results by taking into account fading and unidirectional links in ring and random 2-D topologies. We study conditions for convergence and present simulation results to verify the analytical results in this paper. We compare the performance of consensus algorithms with a tree-based (centralized) approach. Additionally, we implement a slotted ALOHA protocol and compare its performance to that under the initial assumption of perfect scheduling.
C1 [Chan, Kevin; Swami, Ananthram] USA, Res Lab, Adelphi, MD 20783 USA.
[Zhao, Qing; Scaglione, Anna] Univ Calif Davis, Davis, CA 95616 USA.
RP Chan, KV (reprint author), USA, Res Lab, Adelphi, MD 20783 USA.
EM kevin.s.chan@us.army.mil; ananthram.swami@us.army.mil;
qzhao@ucdavis.edu; ascaglione@ucdavis.edu
NR 21
TC 5
Z9 5
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 549
EP 554
DI 10.1109/MILCOM.2010.5680428
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200356
ER
PT S
AU Kleider, JE
Steenhoek, C
Morris, D
Lai, HQ
Zannetti, B
Chin, T
Ma, XL
Hamilton, B
AF Kleider, John E.
Steenhoek, Chris
Morris, Derek
Lai, Hung-Quoc
Zannetti, Bruce
Chin, Tony
Ma, Xiaoli
Hamilton, Benjamin
GP IEEE
TI Achieving MIMO Performance with Single-Antenna Radios
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
DE Distributed MIMO; OFDM; antenna; measurements
ID SYNCHRONIZATION
AB Multiple-antenna systems have been shown to provide significant performance improvements over single-antenna systems. Theoretical analysis, simulation and experimental testing corroborate improvements in capacity and transmit power/energy savings. Unfortunately, co-located MIMO radios have numerous disadvantages compared to single-antenna radios; such as more complex RF and modem signal processing, inability to provide sufficient antenna spacing for soldier communication frequencies, increased radio size form factors and higher digital hardware power requirements. In this work, we propose to use simple and low cost single-antenna radios in "distributed groups" to form MIMO virtual arrays. Virtual arrays are created by "clusters" of single-antenna transmitters and receivers, respectively, each of which work cooperatively together and can be shown to provide many of the benefits of co-located MIMO systems. We used a 2X2 USRP-based MIMO OFDM system to perform field measurements with the objective to determine throughput and capacity performance compared to SISO OFDM. We compared performance by changing channel propagation environment, antenna spacing, RF frequency and propagation distance. In some channel environments, throughput gains (TPG) of 2X were found with range gain (RNG) of 2X compared to the same SISO OFDM system. We found that optimal antenna spacing may be environment dependent, which motivated us to develop a more general distributed MIMO system approach that could be utilized for field measurements in nearly any configuration desired. Subsequently, we developed a 2-transmit and (1-4)-receive distributed OFDM MIMO model suitable for single-antenna radios, with simulations that support a RNG of between 2.25X and 5.5X.
C1 [Kleider, John E.] Gen Dynam C4 Syst, Atlanta, GA USA.
[Steenhoek, Chris] Gen Dynam C4 Syst, Scottsdale, AZ USA.
[Morris, Derek; Lai, Hung-Quoc; Zannetti, Bruce; Chin, Tony] US Army, CERDEC, S&TCD, Aberdeen Proving Ground, MD USA.
[Ma, Xiaoli; Hamilton, Benjamin] Georgia Inst Technol, Atlanta, GA USA.
RP Kleider, JE (reprint author), Gen Dynam C4 Syst, Atlanta, GA USA.
FU U. S. Army Research Laboratory under the Collaborative Technology
Alliance Program [DAAD19-01-2-0011]
FX Prepared through collaborative participation in the Communications and
Networks Consortium sponsored by the U. S. Army Research Laboratory
under the Collaborative Technology Alliance Program, Cooperative
Agreement DAAD19-01-2-0011. The U. S. Government is authorized to
reproduce and distribute reprints for Government purposes
notwithstanding any copyright notation thereon.
NR 13
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 814
EP 819
DI 10.1109/MILCOM.2010.5680266
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200319
ER
PT S
AU Clark, A
Hardy, R
Poovendran, R
AF Clark, Andrew
Hardy, Rommie
Poovendran, Radha
GP IEEE
TI A Joint Performance-Vulnerability Metric Framework for Designing Ad Hoc
Routing Protocols
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
AB When a network is deployed in a hostile environment, different paths between nodes may provide varying levels of resilience to adversarial attack. Therefore, in order to ensure that network services are both timely and secure, both the vulnerability and performance of the path must be taken into account during route selection. However, current routing protocols do not take resilience of intermediate links into account, instead focusing on optimizing use of network resources. In this work, we propose a new class of resilience-enhanced routing protocols that incorporate the security of individual communication links when selecting a routing path. To enable resilient path selection, we introduce a joint performance-vulnerability metric, which quantifies the cost of a link based on both performance and vulnerability characteristics, so that shortest paths chosen using this metric will be both efficient and resilient to attack. We give an example that measures resilience to key exposure in ad hoc networks and demonstrate the feasibility of our scheme through analysis and simulation.
C1 [Clark, Andrew; Poovendran, Radha] Univ Washington, EE Dept, NSL, Seattle, WA 98195 USA.
[Hardy, Rommie] US Army Res Lab, Adelphi, MD 20783 USA.
RP Clark, A (reprint author), Univ Washington, EE Dept, NSL, Seattle, WA 98195 USA.
RI McLean, Laurence /C-7367-2014
NR 8
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 930
EP 935
DI 10.1109/MILCOM.2010.5679587
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200155
ER
PT S
AU Manousakis, K
Sterne, D
Lawler, G
Ivanic, N
AF Manousakis, Kyriakos
Sterne, Dan
Lawler, Geoff
Ivanic, Natalie
GP IEEE
TI Distributed Active Maintenance for Intrusion Detection Structures
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
DE intrusion detection structures; distributed maintenance; mobile ad-hoc
networks; robustness
AB Intrusion detection (ID) effectiveness (low latency, low overhead, high accuracy) depends also on the collection of the corresponding data. In this paper we introduce an active maintenance mechanism that is distributed utilizing one hop information. This mechanism focuses on the maintenance of optimally formed tree ID structures, utilized for the collection and processing of ID data. The maintenance is called active, as opposed to the existing passive maintenance mechanisms, which are triggered only when the feasibility (e.g. connectivity) of the ID structures is violated, because continuously the participating nodes monitor their neighborhood characteristics that are related to the ID structures design objectives and take restructuring decisions so that the quality (design objectives) of the ID structures is maintained. We evaluate and present the effectiveness of active maintenance mechanism by implementing it in ARL's Wireless Emulation Lab (WEL) Testbed and comparing its optimality with respect to the optimality of tree ID structures formed utilizing a previously proposed global optimization mechanism based on simulated annealing (SA).
C1 [Manousakis, Kyriakos] Telcordia Technol, Appl Res, Piscataway, NJ 08854 USA.
[Sterne, Dan; Lawler, Geoff] Cobham Anal Solut, Columbia, MD 21046 USA.
[Ivanic, Natalie] US Army Res Lab, Adelphi, MD 20783 USA.
RP Manousakis, K (reprint author), Telcordia Technol, Appl Res, Piscataway, NJ 08854 USA.
EM kyriakos@research.telcordia.com; Dan.Sterne@cobham.com;
Geoff.Lawler@cobham.com; nivanic@us.army.mil
FU U.S. Army Research Laboratory under the Collaborative Technology
Alliance (CTA) Program [DAAD19-2-01-0011]
FX Prepared through collaborative participation in the Communications and
Networks Consortium sponsored by the U.S. Army Research Laboratory under
the Collaborative Technology Alliance (CTA) Program, Cooperative
Agreement DAAD19-2-01-0011. The U.S. Government is authorized to
reproduce and distribute reprints for Government purposes
notwithstanding any copyright notation thereon.
NR 14
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 1038
EP 1043
DI 10.1109/MILCOM.2010.5679876
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200267
ER
PT S
AU Rittenbach, T
Satake, H
Redding, E
Perry, K
Thawani, M
Dietrich, C
Thandee, R
AF Rittenbach, Tom
Satake, Hiroshi
Redding, Eric
Perry, Karen
Thawani, Mahendra
Dietrich, Carl
Thandee, Rithrong
GP IEEE
TI GRA Model Driven Design Process
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
AB The purpose of the Government Reference Architecture (GRA) was to define a modular, open systems architecture that fostered reuse and technology insertion refresh with modular components and product line variants. A graphical model-driven development (MDD) approach was chosen to support rapid design and development of work products that could be quickly leveraged by radio developers within existing development processes with commercial modeling tools. The GRA has matured its model driven methodology through recent efforts transforming the OSSIE-based GRA testbed from an executable UML (TM) Platform Independent Model (PIM) to an executable Software Communications Architecture (SCA) Platform Specific Model (PSM). In GRA Phase 2, IBM (R) Rational (R) Rhapsody (R) was used to develop the UML PIM model for the purpose of GRA interface validation. The third step in GRA Phase 3 was to demonstrate an executable PSM implementation by combining the PSM work in Rhapsody with additional tool capability for the SCA CORBA (R) model using the SCA domain specific MDD tool, PrismTech Spectra CX. Although gaps were identified in the path to an integrated, standards-based, automated GRA modeling tool chain, productivity gains around improved collaboration and code development accelerations were realized. Evolving the GRA through model-driven PIM and PSM development tools, including the tool chain integration process, will be described in detail in this paper, along with analysis of MDD productivity gains achieved with this integrated tool chain approach.
C1 [Rittenbach, Tom] USA, CERDEC, Ft Monmouth, NJ 02001 USA.
[Satake, Hiroshi] SAIC, San Francisco, CA USA.
[Redding, Eric] Rockwell Collins Inc, Richardson, TX USA.
[Perry, Karen] Prism Tech, Woburn, MA USA.
[Thawani, Mahendra] XPRTSol, Eatontown, NJ USA.
[Dietrich, Carl; Thandee, Rithrong] Virginia Tech, Blacksburg, VA USA.
RP Rittenbach, T (reprint author), USA, CERDEC, Ft Monmouth, NJ 02001 USA.
NR 7
TC 0
Z9 0
U1 1
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 1151
EP 1156
DI 10.1109/MILCOM.2010.5680100
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200072
ER
PT S
AU Fink, J
Ribeiro, A
Kumar, V
Sadler, BM
AF Fink, Jonathan
Ribeiro, Alejandro
Kumar, Vijay
Sadler, Brian M.
GP IEEE
TI Optimal Robust Multihop Routing for Wireless Networks of Mobile Micro
Autonomous Systems
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
ID CONNECTIVITY
AB This paper develops algorithms to ensure that agents of a mobile micro autonomous system (MMAS) maintain integrity of communication flows as they move to accomplish their task. Due to inherent uncertainties in estimation of wireless channels, we advocate a stochastic approach whereby achievable communication rates of point-to-point links are regarded as random variables with known means and variances. To achieve reliable end-to-end communication flows, terminals route their traffic through various alternative paths to reduce the effect of uncertainty in individual link rates. The proposed algorithms are optimal and robust in that routes are obtained as solutions of optimization problems subject to constraints on minimum required rates and maximum acceptable variances. Algorithms are tested in an event-based simulator that uses an accurate data-driven model of radio communications to model both the structure of code running independently on multiple robots as well as the transmission of messages via a real radio. Simulation results corroborate that rates of end-to-end flows are maintained at target levels despite variations in the rates of individual links.
C1 [Fink, Jonathan; Ribeiro, Alejandro; Kumar, Vijay] Univ Penn, Philadelphia, PA 19104 USA.
[Sadler, Brian M.] Army Res Lab, Philadelphia, PA 19104 USA.
RP Fink, J (reprint author), Univ Penn, Philadelphia, PA 19104 USA.
NR 22
TC 5
Z9 5
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 1268
EP 1273
DI 10.1109/MILCOM.2010.5680122
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200202
ER
PT S
AU Kusyk, J
Urrea, E
Sahin, CS
Uyar, MU
Bertoli, G
Pizzo, C
AF Kusyk, Janusz
Urrea, Elkin
Sahin, Cem Safak
Uyar, M. Uemit
Bertoli, Giorgio
Pizzo, Christian
GP IEEE
TI RESILIENT NODE SELF-POSITIONING METHODS FOR MANETS BASED ON GAME THEORY
AND GENETIC ALGORITHMS
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
DE Cognitive networks; topology control; node spreading; game theory;
genetic algorithm; MANETs
ID AGENTS
AB We present a distributed and scalable game participated by autonomous MANET nodes to place themselves uniformly over a dynamically changing environment. A node spreading potential game, called Rel-NSPG, run at each node, autonomously makes movement decisions based on localized data while the best next location to move is selected by a genetic algorithm (GA). Since it requires only a limited synchronization among the closest neighbors of a player, and does not require a priori knowledge of the environment, Rel-NSPG is a good candidate for node spreading class of applications used in military tasks. The performance of Rel-NSPG degrades gracefully when the number of MANET nodes decrease either due to equipment malfunction or hostile activities. We show that this resilience to loss of nodes is inherent in Rel-NSPG. Simulation experiments demonstrate that, after a subset of the MANET nodes arbitrarily become unavailable, the remaining nodes recover and offset lost nodes. Similarly, when there are losses concentrated in a given region, remaining nodes reconfigure their positions to compensate for the missing area coverage. The simulation experiments with arbitrarily placed obstacles, in addition to lost assests, produce promising results.
C1 [Kusyk, Janusz] CUNY, Grad Ctr, New York, NY 10016 USA.
[Urrea, Elkin; Sahin, Cem Safak; Uyar, M. Uemit] CUNY City Coll, Dept Elect Engn, New York, NY 10031 USA.
[Bertoli, Giorgio; Pizzo, Christian] US Army, Elect Commun Res, Ft Monmouth, NJ 07703 USA.
RP Kusyk, J (reprint author), CUNY, Grad Ctr, New York, NY 10016 USA.
FU U.S. Army CommunicationsElectronics RDE Center; National Science
Foundation [ECS-0421159, CNS-0619577]
FX This work has been supported by U.S. Army CommunicationsElectronics RD&E
Center. The contents of this document represent the views of the authors
and are not necessarily the official views of, or are endorsed by, the
U.S. Government, Department of Defense, Department of the Army, or the
U.S. Army Communications-Electronics RD&E Center. This work has been
supported by the National Science Foundation grants ECS-0421159 and
CNS-0619577.
NR 16
TC 1
Z9 1
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 1399
EP 1404
DI 10.1109/MILCOM.2010.5680141
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200211
ER
PT S
AU Beljour, H
Hoffmann, R
Michael, G
Schoonveld, W
Shields, J
Sumit, I
Swenson, C
Willson, A
Curtis, T
Weerackody, V
AF Beljour, Herald
Hoffmann, Rich
Michael, Gerald
Schoonveld, Wayne
Shields, Joseph
Sumit, Imrul
Swenson, Carl
Willson, Andrew
Curtis, Thomas
Weerackody, Vijitha
GP IEEE
TI Proof of Concept Effort for Demonstrating an All-Digital Satellite
Communications Earth Terminal
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
AB The Space and Terrestrial Communication Directorate of the U.S. Army's Communications- Electronics Research, Development and Engineering Center is executing a proof of concept program to develop and demonstrate an All-digital Satellite Communications Earth Terminal. The Future Advanced Satellite Terminal (FAST) program initially focuses on the satellite terminal's receive component of the satellite link. The two main efforts under FAST are a multi-carrier wideband digital downconverter and a wideband multi-carrier advanced signal processor. The downconverter is designed to simultaneously capture at L-band intermediate Frequency (IF) all of the signals in a selectable 125 MHz-wide transponder bandwidth of the Wideband Global SATCOM (WGS) satellite and convert them into a digital in-phage and quadrature signal. This digitized signal is then passed over an American National Standards Institute (ANSI) VMEBUS International Trade Association (VITA) 49 interface to the wideband multi-carrier advanced signal processor, which will simultaneously process at least eight communications signals. Future plans for a complete transmit and receive terminal capability and a potential migration path from fixed frequency division multiple access (FDMA) carriers to a more dynamic process for allocating bandwidth, decentralized power monitoring and control, and remote terminal control are also discussed.
C1 [Beljour, Herald; Hoffmann, Rich; Michael, Gerald; Schoonveld, Wayne; Shields, Joseph; Sumit, Imrul; Swenson, Carl; Willson, Andrew] USA, CERDEC S&TCD, Satellite Commun Syst Div, Ft Monmouth, NJ 07703 USA.
[Curtis, Thomas; Weerackody, Vijitha] Johns Hopkins Univ Appl Phys Lab, Appl Informat Sci Div, New Jersey Off, Red Bank, NJ USA.
RP Beljour, H (reprint author), USA, CERDEC S&TCD, Satellite Commun Syst Div, Ft Monmouth, NJ 07703 USA.
NR 4
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 1547
EP 1551
DI 10.1109/MILCOM.2010.5680172
PG 5
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200108
ER
PT S
AU He, QF
Xu, ZY
Sadler, BM
AF He, Qunfeng
Xu, Zhengyuan
Sadler, Brian M.
GP IEEE
TI Non-line-of-sight Serial Relayed Link for Optical Wireless
Communications
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
ID LIGHT-EMITTING-DIODES; ULTRAVIOLET COMMUNICATIONS; PERFORMANCE
AB Ultraviolet (UV) is a promising enabling technology for non-line-of-sight (NLOS) optical wireless communication. However, the communication range is limited due to large path loss and low transmitted power from the light source. We thus consider end-to-end communication through a serial relayed link. Each pair of the relay nodes shares information via a NLOS UV channel whose path loss was measured through a test campaign. Considering possible interference from neighboring nodes and spatial reuse, we propose cooperative reception at the relay node to achieve performance close to the quantum limited case. The benefits in range extension and power savings of the UV relay network are demonstrated through error performance and data rate analysis, as well as numerical simulation. Light weight nodes with low power consumption are shown to be feasible to implement and deploy.
C1 [He, Qunfeng; Xu, Zhengyuan] Univ Calif Riverside, Riverside, CA 92521 USA.
[Sadler, Brian M.] Army Res Lab, Adelphi, MD 20783 USA.
RP He, QF (reprint author), Univ Calif Riverside, Riverside, CA 92521 USA.
EM dxu@ee.ucr.edu; bsadler@arl.army.mil
NR 17
TC 9
Z9 11
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 1588
EP 1593
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200304
ER
PT S
AU He, T
Bisdikian, C
Kaplan, L
Wei, W
Towsley, D
AF He, Ting
Bisdikian, Chatschik
Kaplan, Lance
Wei, Wei
Towsley, Don
GP IEEE
TI Multi-Target Tracking Using Proximity Sensors
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
DE Multi-target tracking; Bayesian filtering
AB We consider the problem of tracking multiple moving targets in a continuous field using proximity sensors, which are binary sensors that can sense target presence by performing local energy detection subject to noise. Compared with more sophisticated sensors, proximity sensors have the advantage of having lower costs and lower energy consumption, but also the disadvantage of being less accurate. In this paper, we propose a hybrid tracking scheme where a coarse-scale tracking is first performed by proximity sensors to narrow down the areas of interest, and then a fine-scale tracking is performed by high-end sensors to estimate the exact target locations, with our focus on the former. In contrast to classic multi-target tracking which assumes 1-1 association between measurements and targets, we show that proximity measurements do not have such association and thus require a different objective. Formulating the coarse-scale tracking as a problem of tracking the histograms of targets in a cell-partitioned field, we develop both an optimal and two approximate solutions via Bayesian Filtering (BF). In particular, one of our approximate solutions decouples the tracking of different targets and thus reduces the dimensionality of BF by relaxing the likelihood function, and the other further reduces the problem into discrete space by quantizing the target mobility model and the relaxed likelihood function. Together with the optimal solution, they provide flexible tradeoffs between accuracy and complexity. Simulations show that the proposed solutions can effectively track targets to the accuracy of a cell and thus reduce uncertainty for the fine-scale tracking.
C1 [He, Ting; Bisdikian, Chatschik] IBM Res, Hawthorne, NY 10532 USA.
[Kaplan, Lance] Army Res Lab, Adelphi, MD USA.
[Wei, Wei; Towsley, Don] Univ Massachusetts, Amherst, MA 01003 USA.
RP He, T (reprint author), IBM Res, Hawthorne, NY 10532 USA.
EM the@us.ibm.com; bisdik@us.ibm.com; lance.m.kaplan@us.army.mil;
weiwei@cs.umass.edu; towsley@cs.umass.edu
FU U.S. Army Research Laboratory; U.K. Ministry of Defence
[W911NF-06-3-0001]
FX Research was sponsored by the U.S. Army Research Laboratory and the U.K.
Ministry of Defence and was accomplished under Agreement Number
W911NF-06-3-0001. The views and conclusions contained in this document
are those of the author(s) and should not be interpreted as representing
the official policies of the U.S. Army Research Laboratory, the U.S.
Government, the U.K. Ministry of Defence or the U.K. Government. The
U.S. and U.K. Governments are authorized to reproduce and distribute
reprints for Government purposes notwithstanding any copyright notation
hereon.
NR 9
TC 5
Z9 5
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 1777
EP 1782
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200260
ER
PT S
AU Lu, Z
Lu, XA
Wang, WY
Wang, C
AF Lu, Zhuo
Lu, Xiang
Wang, Wenye
Wang, Cliff
GP IEEE
TI Review and Evaluation of Security Threats on the Communication Networks
in the Smart Grid
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
AB The smart grid, generally referred to as the next-generation power electric system, relies on robust communication networks to provide efficient, secure, and reliable information delivery. Thus, the network security is of critical importance in the smart grid. In this paper, we aim at classifying and evaluating the security threats on the communication networks in the smart grid. Based on a top-down analysis, we categorize the goals of potential attacks against the smart grid communication networks into three types: network availability, data integrity and information privacy. We then qualitatively analyze both the impact and feasibility of the three types of attacks. Moreover, since network availability is the top priority in the security objectives for the smart grid, we use experiments to quantitatively evaluate the impact of denial-of-service (DoS) attacks on a power substation network. Our work provides initial experimental data of DoS attacks against a power network and shows that the network performance degrades dramatically only when the DoS attack intensity approaches to the maximum.
C1 [Lu, Zhuo; Lu, Xiang; Wang, Wenye] North Carolina State Univ, Dept Elect & Comp Engn, Raleigh, NC 27606 USA.
[Wang, Cliff] Army Res Off, Res Triangle Pk, NC 27709 USA.
RP Lu, Z (reprint author), North Carolina State Univ, Dept Elect & Comp Engn, Raleigh, NC 27606 USA.
EM zlu3@ncsu.edu; xlu6@ncsu.edu; wwang@ncsu.edu; cliff.wang@us.army.mil
FU Army Research Office (ARO) [53435-CS-SR]
FX The work was supported by Army Research Office (ARO) under Grant Number
53435-CS-SR
NR 26
TC 35
Z9 35
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 1830
EP 1835
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200379
ER
PT S
AU Gottlieb, YM
Chiang, CJ
Chadha, R
Ohel, H
Moeltner, K
Ali, S
Kumar, Y
Bauer, R
AF Gottlieb, Yitzchak M.
Chiang, C. Jason
Chadha, Ritu
Ohel, Hagai
Moeltner, Kim
Ali, Syeed
Kumar, Yogeeta
Bauer, Rocio
GP IEEE
TI Policy-Controlled Dynamic Spectrum Access in Multitiered Mobile Networks
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
AB Managed mobile ad hoc networks, such as tactical networks, are frequently implemented using multiple subnets, or tiers, so that nodes in one tier can communicate to nodes in another tier only through gateways that can communicate in both tiers. This structure imposes an extra burden on network planning personnel to plan and configure appropriate nodes as gateways between tiers taking into account the connectivity between tiers required to meet communication needs and the robustness required to deal with failures and mobility. This paper presents Net Communication Goals-a policy for specifying connectivity between tiers-and an implementation of a system for enforcing these policies. Using Net Communication Goals, or net goals, network planning personnel need only specify the required number of connections between tiers. These policies are then dynamically enforced within each tier, reconfiguring the frequencies used by network nodes to provide dynamic access to different parts of the available spectrum, thereby automatically maintaining the needed connectivity without manual intervention.
C1 [Gottlieb, Yitzchak M.; Chiang, C. Jason; Chadha, Ritu] Telcordia Technol Inc, Piscataway, NJ 08854 USA.
[Ohel, Hagai] Gen Dynam C4 Syst, Sunrise, FL USA.
[Moeltner, Kim; Ali, Syeed; Kumar, Yogeeta; Bauer, Rocio] US Army, CERDEC, Ft Monmouth, NJ USA.
RP Gottlieb, YM (reprint author), Telcordia Technol Inc, Piscataway, NJ 08854 USA.
FU U. S. Army Communications Electronics Research and Development
Engineering Center (CERDEC) [W15P7T-08-C-P213]
FX The research reported in this document/presentation was performed in
connection with contract number W15P7T-08-C-P213 with the U. S. Army
Communications Electronics Research and Development Engineering Center
(CERDEC). The views and conclusions contained in this document are those
of the authors and should not be interpreted as presenting the official
policies or position, either expressed or implied, of the U. S. Army
CERDEC, or the U. S. Government unless so designated by other authorized
documents. Citation of manufacturers or trade names does not constitute
an official endorsement or approval of the use thereof. The U. S.
Government is authorized to reproduce and distribute reprints for
Government purposes notwithstanding any copyright notation hereon.
NR 8
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 1881
EP 1886
DI 10.1109/MILCOM.2010.5679567
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200089
ER
PT S
AU Ferrett, T
Valenti, MC
Torrieri, D
AF Ferrett, Terry
Valenti, Matthew C.
Torrieri, Don
GP IEEE
TI Receiver Design for Noncoherent Digital Network Coding
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
ID FADING CHANNELS; SIGNALS; FSK
AB Physical-layer network coding is considered for the two-way relay network with realistic assumptions on the coherence of the channel. In contrast to analog network coding, which relays received analog signals plus noise, our system relays digital network codewords, obtained by digital demodulation and channel decoding. By using binary frequency-shift keying and noncoherent reception, the relay may operate without knowledge of the phases of the signals transmitted simultaneously by the two sources. The channels between the end nodes and the relay are modeled as noncoherent block fading channels, and an outer turbo code is used. A noncoherent receiver is formulated for the relay, which estimates the fading amplitudes but not the phases. Several block sizes are considered, and the effect of block size on error-rate performance is investigated. As a baseline for performance comparison, the system is also simulated using perfect knowledge of the fading amplitudes, and it is observed that the performance lost to channel estimation is negligible for sufficiently large blocks. An example realization of the proposed system demonstrates a 32.4% throughput improvement compared to a similar system that performs network coding at the link layer.
C1 [Ferrett, Terry; Valenti, Matthew C.] W Virginia Univ, Morgantown, WV 26506 USA.
[Torrieri, Don] US Army Res Lab, Adelphi, MD USA.
RP Ferrett, T (reprint author), W Virginia Univ, Morgantown, WV 26506 USA.
OI Ferrett, Terry/0000-0002-9919-9544; Valenti, Matthew/0000-0001-6089-0509
NR 15
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 2096
EP 2101
DI 10.1109/MILCOM.2010.5680474
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200282
ER
PT S
AU Lai, HQ
Zannetti, B
Chin, T
Morris, D
Koshy, J
Macre, W
Liberti, J
Martin, C
AF Lai, Hung-Quoc
Zannetti, Bruce
Chin, Tony
Morris, Derek
Koshy, John
Macre, William
Liberti, Joseph
Martin, Carol
GP IEEE
TI Measurements of Multiple-Input Multiple-Output (MIMO) Performance under
Army Operational Conditions
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
DE MIMO; field experiments; military conditions; throughput gain; range
extension; antenna separation
ID CAPACITY
AB This paper presents the results from a field measurement campaign that was conducted to provide an understanding of Multiple-Input Multiple-Output (MIMO) performance relative to that of a Single-Input Single-Output (SISO) system in military-type environments. The Space & Terrestrial Communications Directorate (STCD) MIMO system was used to conduct these experiments. The system has two antennas and operates at transmit frequencies of 430 and 1380MHz, which fall within military frequency bands. A variety of operational environments with many scenarios were considered. The experiments were conducted at C4ISR OTM testing facility, Fort Dix, New Jersey for transmissions along a wide road, a narrow road and through heavy foliage. These experiments measured the throughput gain of MIMO over SISO given the same transmit power and channel usage. The gain in throughput was corroborated by information-theoretic capacity calculations using channel estimates collected during the experimental campaign. In addition, the impact of the antenna spacing on throughput gain was also studied. Depending on the multipath-richness of the environment, the experimental results show that the 2-antenna system provides a throughput of 1.3 to 2.0 times that of a SISO system. On average, a range extension of 1.5 times could be realized for all the considered scenarios and transmit frequencies. The results suggest that antennas in MIMO systems should be placed at least a half of carrier wavelength apart, as indicated in open literature.
C1 [Lai, Hung-Quoc; Zannetti, Bruce; Chin, Tony; Morris, Derek] US Army, CERDEC S&TCD, Ft Monmouth, NJ 07703 USA.
[Koshy, John; Macre, William; Liberti, Joseph; Martin, Carol] Telcordia Technol, Red Bank, NJ USA.
RP Lai, HQ (reprint author), US Army, CERDEC S&TCD, Ft Monmouth, NJ 07703 USA.
FU U. S Army Research Laboratory under the Collaborative Technology
Alliance Program Cooperative Agreement [DAAD19-01-2-0011]
FX Prepared through collaborative participation in the Communications and
Networks Consortium sponsored by the U. S. Army Research Laboratory
under the Collaborative Technology Alliance Program, Cooperative
Agreement DAAD19-01-2-0011. The U.S. Government is authorized to
reproduce and distribute reprints for Government purposes.
NR 11
TC 1
Z9 1
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 2119
EP 2124
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200050
ER
PT S
AU Mody, AN
Sherman, M
Trojan, A
Yau, K
Farkas, J
Sputz, S
McElwain, T
Bauer, R
Boksiner, J
Fiuza, A
AF Mody, Apurva N.
Sherman, Matthew
Trojan, Alan
Yau, Kwok
Farkas, Joe
Sputz, Sharon
McElwain, Tom
Bauer, Rosie
Boksiner, Jeff
Fiuza, Antonio
GP IEEE
TI On Making the Current Military Radios Cognitive without Hardware or
Firmware Modifications
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
DE cognitive radio; dynamic sectrum access; WIN-T LAW; external sensing
AB Cognitive Radio (CR) using Dynamic Spectrum Access (DSA) provides the military radios, an ability to operate in un-predictable interference environments. CRs are capable of sensing their environment and autonomously changing the radio parameters such as frequency, bandwidth and power, to avoid interference. Large amount of resources have been invested by the Department of Defense (DoD) on building these radio systems which are currently not DSA enabled. This paper provides a way to make current military radios DSA capable without making any hardware or firmware modifications to them. Radios are made DSA capable by using an external sensor as compared to an embedded sensor containing advanced feature based sensing algorithms, application level messaging and a cognitive engine, which is written in a high level language that resides outside the radios. A real-time over-the-air demonstration for such a cognitive radio test-bed using a network of three Warfighter Information Network - Tactical (WIN-T) Local Area Waveform (LAW) nodes in friendly and un-friendly interference was carried out at the Ft. Dix facility of US Army CERDEC. This paper provides a brief overview of the system, operation of this test-bed and some field demonstration results.
C1 [Mody, Apurva N.; Sherman, Matthew; Trojan, Alan; Yau, Kwok; Farkas, Joe; Sputz, Sharon; McElwain, Tom] BAE Syst, Technol Solut, Nashua, NH 03061 USA.
[Bauer, Rosie; Boksiner, Jeff; Fiuza, Antonio] US Army, CERDEC, S&TCD SEAMS, Ft Monmouth, NJ USA.
RP Mody, AN (reprint author), BAE Syst, Technol Solut, Nashua, NH 03061 USA.
EM apurva.mody@baesystems.com; rocio.bauer@us.army.mil
FU US Army - CERDEC [W15P7T-06-C-P426, 0006]
FX The Authors would like to thank US Army - CERDEC for sponsoring this
program (W15P7T-06-C-P426, CLIN 0006). The authors would like to
acknowledge BAE Systems Communications and Network Solutions group for
providing the WIN-T LAW radios and personnel for the demonstration
purposes of this program. Special thanks go to Ron Buell and Rick Temkin
for making the WIN-T LAW radios available and all their technical help
and guidance.
NR 9
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 2327
EP 2332
DI 10.1109/MILCOM.2010.5680354
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200030
ER
PT S
AU Kant, L
McAuley, A
Manousakis, K
Shallcross, D
Sinkar, K
Tauil, M
Younis, O
Young, K
Graff, C
Patel, M
Yee, D
Mizan, S
AF Kant, L.
McAuley, A.
Manousakis, K.
Shallcross, D.
Sinkar, K.
Tauil, M.
Younis, O.
Young, K.
Graff, C.
Patel, M.
Yee, D.
Mizan, S.
GP IEEE
TI C-NEDAT: A Cognitive Network Engineering Design Analytic Toolset for
MANETs
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
DE Cogntive Networking; MANET Design; Software Defined Radio. Reinforcement
Learning; Simulated Annealing
AB Future force networks of the types envisioned for the network centric warfare (NCW) paradigm will be highly diverse, with the diversity spanning a wide range of (a) requirements (e.g., need for capacity, connectivity, survivability), (b) resources (e.g., radios with widely different capabilities and 'smart' (e.g., Software Defined Radios (SDRs)), and (c) environments (e.g., urban, rural). The need to facilitate robust and adaptable communications in such networks has in turn triggered research in the area of cognitive networks that have the ability to 'learn' and generate real-time control actions to adapt to the wide diversity of requirements, resources and environments. However, the combination of diversity and "smart" networking exacerbates the problem of generating reliable and robust network designs. We present in this paper, our work on the use of cognitive mechanisms to assist with the design and analysis of robust NCW-like networks. Based on formal network-science based approaches, our Cognitive Network Engineering Design Analytic Toolset (C-NEDAT) provides for a systematic way to design, analyze and maintain robustness of future force MANETs. We provide in this paper an overview of the key functional modules and design capabilities of C-NEDAT and present example results.
C1 [Kant, L.; McAuley, A.; Manousakis, K.; Shallcross, D.; Sinkar, K.; Tauil, M.; Younis, O.; Young, K.] Telcordia Technol Inc, Appl Res, Piscataway, NJ 08854 USA.
[Graff, C.; Yee, D.] US Army, CERDEC, Ft Monmouth, NJ USA.
[Patel, M.; Mizan, S.] US Army, CERDEC, Aberdeen, MD USA.
RP Kant, L (reprint author), Telcordia Technol Inc, Appl Res, Piscataway, NJ 08854 USA.
FU U.S. Army CERDEC [DAAD-10-01-C-0062]
FX This work was sponsored by U.S. Army CERDEC under contract
DAAD-10-01-C-0062.
NR 5
TC 0
Z9 0
U1 3
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 2333
EP 2338
DI 10.1109/MILCOM.2010.5680350
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200028
ER
PT S
AU Chrysanthou, C
Boksiner, J
Scott, J
Garner, TJ
AF Chrysanthou, Chrys
Boksiner, Jeffrey
Scott, Jeremy
Garner, Timothy J.
GP IEEE
TI Effects of Nearby Objects on Fading and Coupling in Line-Of-Sight
environments
SO MILITARY COMMUNICATIONS CONFERENCE, 2010 (MILCOM 2010)
SE IEEE Military Communications Conference
LA English
DT Proceedings Paper
CT MILCOM Military Communications Conference
CY OCT 31-NOV 03, 2010
CL San Jose, CA
DE channel modeling; fading channel; DSA
ID PERSONAL COMMUNICATIONS; RADIO PROPAGATION
AB Frequency-agile wideband radios may be susceptible to non-linear effects from strong electromagnetic signals coupled from co-site or nearby emitters. Also, such signals can impact spectrum sensing capability of Dynamic Spectrum Access (DSA) systems. Therefore, it is important to understand the characteristics of the coupling channel between nearby systems due to Line-of-Sight (LOS) propagation and reflections from nearby objects, such as buildings in the urban environment or hills in the rural environment. The presence of nearby objects can cause significant variations in the strength of the coupling leading to enhancement or fading of the coupled signal. Significant fading or variation in coupling may inadvertently cause DSA radios or other systems that have spectrum sensing capability to make erroneous decision on the selection of the operating frequency.
In this paper we define a channel model for coupling among nearby systems. Our analysis considers two-ray and six-ray propagation models to define the nearby LOS coupling channel. We investigate the variation of the coupling as a function of frequency and the arrangement of the surrounding obstructions. We aggregate this data to provide a comprehensive channel model that can be used by radio designers and system integrators to help analyze the electromagnetic environment caused by nearby emitters.
C1 [Chrysanthou, Chrys; Boksiner, Jeffrey; Scott, Jeremy; Garner, Timothy J.] USA, RDECOM, CERDEC, Ft Monmouth, NJ 07703 USA.
RP Chrysanthou, C (reprint author), USA, RDECOM, CERDEC, Ft Monmouth, NJ 07703 USA.
NR 10
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2155-7578
BN 978-1-4244-8180-4
J9 IEEE MILIT COMMUN C
PY 2010
BP 2393
EP 2399
DI 10.1109/MILCOM.2010.5680332
PG 7
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTQ21
UT WOS:000287747200223
ER
PT J
AU Peirce, KP
Wood, MDC
AF Peirce, Karen P.
Wood, Major David C.
BE Higbee, D
TI Teaching English at West Point: A Dialogic Narrative
SO MILITARY CULTURE AND EDUCATION
LA English
DT Article; Book Chapter
C1 [Peirce, Karen P.] N Dakota State Univ, Fargo, ND 58102 USA.
[Peirce, Karen P.] US Mil Acad, West Point, NY USA.
RP Peirce, KP (reprint author), N Dakota State Univ, Fargo, ND 58102 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ASHGATE PUBLISHING LTD
PI ALDERSHOT
PA GOWER HOUSE, CROFT ROAD, ALDERSHOT GU11 3HR, ENGLAND
BN 978-1-4094-0758-4
PY 2010
BP 105
EP 118
PG 14
WC Education & Educational Research
SC Education & Educational Research
GA BA5IY
UT WOS:000336717600009
ER
PT J
AU Carter, BL
AF Carter, Bradley L.
BE Higbee, D
TI No "Holidays from History": Adult Learning, Professional Military
Education, and Teaching History
SO MILITARY CULTURE AND EDUCATION
LA English
DT Article; Book Chapter
C1 [Carter, Bradley L.] US Armys Command, Ft Bragg, NC USA.
[Carter, Bradley L.] Gen Staff Coll, Ft Leavenworth, KS USA.
[Carter, Bradley L.] St Paul Sch Theol, St Paul, MN USA.
RP Carter, BL (reprint author), CGSC Satellite, Ft Gordon, GA USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ASHGATE PUBLISHING LTD
PI ALDERSHOT
PA GOWER HOUSE, CROFT ROAD, ALDERSHOT GU11 3HR, ENGLAND
BN 978-1-4094-0758-4
PY 2010
BP 167
EP 182
PG 16
WC Education & Educational Research
SC Education & Educational Research
GA BA5IY
UT WOS:000336717600013
ER
PT J
AU Slim, AM
Zacher, LL
AF Slim, Ahmad M.
Zacher, Lisa L.
TI Untitled
SO MILITARY MEDICINE
LA English
DT Letter
C1 [Slim, Ahmad M.; Zacher, Lisa L.] Brooke Army Med Ctr, Ft Sam Houston, TX 78234 USA.
RP Slim, AM (reprint author), Brooke Army Med Ctr, Ft Sam Houston, TX 78234 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ASSOC MILITARY SURG US
PI BETHESDA
PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 USA
SN 0026-4075
J9 MIL MED
JI Milit. Med.
PD JAN
PY 2010
VL 175
IS 1
BP III
EP III
PG 1
WC Medicine, General & Internal
SC General & Internal Medicine
GA 582GN
UT WOS:000276584800001
PM 20108831
ER
PT J
AU Stephenson, MR
Byrne, DC
Ohin, DW
Murphy, WJ
Chandler, DW
Davis, RR
Allen, JR
Danielson, RW
AF Stephenson, Mark R.
Byrne, David C.
Ohin, Douglas W.
Murphy, William J.
Chandler, David W.
Davis, Rickie R.
Allen, John R.
Danielson, Richard W.
TI Perspectives on "Efficacy of the US Army Policy on Hearing Conservation
Programs"
SO MILITARY MEDICINE
LA English
DT Editorial Material
C1 [Stephenson, Mark R.; Murphy, William J.; Davis, Rickie R.] NIOSH, Hearing Loss Prevent Team, Cincinnati, OH 45226 USA.
[Ohin, Douglas W.] USA, Ctr Hlth Promot & Prevent Med, Bel Air, MD 21014 USA.
[Chandler, David W.] Dept Vet Affairs, Rehabil Serv, Washington, DC 20420 USA.
[Allen, John R.] NASA Headquarters, Washington, DC 20546 USA.
[Danielson, Richard W.] NASA, Lyndon B Johnson Space Ctr, Houston, TX 77030 USA.
RP Stephenson, MR (reprint author), NIOSH, Hearing Loss Prevent Team, 4676 Columbia Pkwy,Mailstop C-27, Cincinnati, OH 45226 USA.
RI Davis, Rickie/A-3186-2008
NR 10
TC 2
Z9 2
U1 0
U2 1
PU ASSOC MILITARY SURG US
PI BETHESDA
PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 USA
SN 0026-4075
J9 MIL MED
JI Milit. Med.
PD JAN
PY 2010
VL 175
IS 1
BP XII
EP XVI
PG 5
WC Medicine, General & Internal
SC General & Internal Medicine
GA 582GN
UT WOS:000276584800004
PM 20108834
ER
PT J
AU Sell, TC
Chu, YC
Abt, JP
Nagai, T
Deluzio, J
McGrail, MA
Rowe, RS
Lephart, SM
AF Sell, Timothy C.
Chu, Yungchien
Abt, John P.
Nagai, Takashi
Deluzio, Jennifer
McGrail, Mark A.
Rowe, Russell S.
Lephart, Scott M.
TI Minimal Additional Weight of Combat Equipment Alters Air Assault
Soldiers' Landing Biomechanics
SO MILITARY MEDICINE
LA English
DT Article
ID ANTERIOR CRUCIATE LIGAMENT; LOWER-EXTREMITY KINEMATICS; VERTICAL
STOP-JUMP; LOAD CARRIAGE; GENDER-DIFFERENCES; DROP-LANDINGS; INJURY;
MILITARY; FORCES; KINETICS
AB The additional weight of combat and protective equipment carried by soldiers on the battlefield and insufficient adaptations to this weight may increase the risk of musculoskeletal injury. The objective of this study was to determine the effects of the additional weight of equipment on knee kinematics and vertical ground reaction forces (VGRF) during two-legged drop landings. We tested kinematics and VGRF of 70 air assault soldiers performing drop landings with and without wearing the equipment. Maximum knee flexion angles, maximum vertical ground reaction forces, and the time from initial contact to these maximum values all increased with the additional weight of equipment. Proper landing technique, additional weight (perhaps in the form of combat and protective equipment), and eccentric strengthening of the hips and knees should be integrated into soldiers' training to induce musculoskeletal and biomechanical adaptations to reduce the risk of musculoskeletal injury during two-legged drop landing maneuvers.
C1 [Sell, Timothy C.; Chu, Yungchien; Abt, John P.; Nagai, Takashi; Deluzio, Jennifer; Lephart, Scott M.] Univ Pittsburgh, Neuromuscular Res Lab, Dept Sports Med & Nutr, Pittsburgh, PA 15203 USA.
[Nagai, Takashi; Deluzio, Jennifer] Univ Pittsburgh, Human Performance Res Lab, Ft Campbell, KY 42223 USA.
[McGrail, Mark A.] Dept Army, Airborne Div Air Assault 101, Div Surg Off, Ft Campbell, KY 42223 USA.
[Rowe, Russell S.] Walter Reed Army Med Ctr, Dept Med, Dermatol Serv, Washington, DC 20307 USA.
RP Sell, TC (reprint author), Univ Pittsburgh, Neuromuscular Res Lab, Dept Sports Med & Nutr, 3200 S Water St, Pittsburgh, PA 15203 USA.
FU U.S. Army Medical Research and Materiel Command [W81XWH-06-2-0070]
FX This study is supported by the U.S. Army Medical Research and Materiel
Command under Award No. W81XWH-06-2-0070, as a part of the 101st
Airborne (Air Assault) Injury Prevention and Performance Optimization
Program.
NR 44
TC 14
Z9 15
U1 1
U2 1
PU ASSOC MILITARY SURG US
PI BETHESDA
PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 USA
SN 0026-4075
J9 MIL MED
JI Milit. Med.
PD JAN
PY 2010
VL 175
IS 1
BP 41
EP 47
PG 7
WC Medicine, General & Internal
SC General & Internal Medicine
GA 582GN
UT WOS:000276584800011
PM 20108841
ER
PT J
AU Smith, JM
Fox, CJ
Brazaitis, MP
Via, K
Garcia, R
Feuerstein, IM
AF Smith, Jennifer M.
Fox, Charles J.
Brazaitis, Michael P.
Via, Kathy
Garcia, Roman
Feuerstein, Irwin M.
TI Sixty-Four-Slice CT Angiography to Determine the Three Dimensional
Relationships of Vascular and Soft Tissue Wounds in Lower Extremity War
Time Injuries
SO MILITARY MEDICINE
LA English
DT Article
ID ARTERIAL EVALUATION; MULTIDETECTOR CT; DIAGNOSIS; TRAUMA
AB This article analyzes the use and benefits of the 64-slice CT scanner in determining the 3D relationships of vascular and soft tissue wounds in lower extremity war time injuries. A brief overview of CT scanning is given as well as the techniques used to produce the images needed for diagnosis. The series follows two similar cases of war time injury patients at the Walter Reed Army Medical Center. The first case is a 30-year-old active duty male, who presented with multiple trauma from a motor vehicle accident because of an improvised explosive device (LED) blast, sustaining substantial lower extremity injuries. The second case is a 34-year-old active duty male, who presented with multiple trauma blast injuries. Both cases were of interest because the vasculature was found to be very close to the surface of the wound, which put the arteries at risk for rupture and for iatrogenic injury during repeated debridements.
C1 [Smith, Jennifer M.] Calif Univ Penn, California, PA 15419 USA.
[Fox, Charles J.; Brazaitis, Michael P.; Via, Kathy; Garcia, Roman; Feuerstein, Irwin M.] Walter Reed Army Med Ctr, Washington, DC 20307 USA.
RP Smith, JM (reprint author), Calif Univ Penn, 401 Green St, California, PA 15419 USA.
NR 8
TC 2
Z9 2
U1 0
U2 1
PU ASSOC MILITARY SURG US
PI BETHESDA
PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 USA
SN 0026-4075
J9 MIL MED
JI Milit. Med.
PD JAN
PY 2010
VL 175
IS 1
BP 65
EP 67
PG 3
WC Medicine, General & Internal
SC General & Internal Medicine
GA 582GN
UT WOS:000276584800015
PM 20108845
ER
PT J
AU Andrews, CM
Singh, NN
Stewart, RW
AF Andrews, Christopher M.
Singh, Nicklesh N.
Stewart, Robert W.
TI Bullet Aspiration and Spontaneous Expectoration After Gunshot Wound to
Trachea
SO MILITARY MEDICINE
LA English
DT Article
AB A young adult male suffered a combat gunshot wound to his anterior trachea, which resulted in bullet migration, via aspiration, to the point of lodgment in the right upper lobe bronchus. He subsequently spontaneously expectorated the intact bullet, a first report of such events. A bronchoscopy was then performed confirming the site of entry, position of previous lodgment, and lack of further pathology. A brief discussion of expected findings, management, and complications are discussed.
C1 [Andrews, Christopher M.; Singh, Nicklesh N.] Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA.
Walter Reed Army Med Ctr, Dept Cardiothorac Surg, Washington, DC 20307 USA.
RP Andrews, CM (reprint author), Uniformed Serv Univ Hlth Sci, 4301 Jones Bridge Rd, Bethesda, MD 20814 USA.
NR 7
TC 4
Z9 4
U1 0
U2 1
PU ASSOC MILITARY SURG US
PI BETHESDA
PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 USA
SN 0026-4075
J9 MIL MED
JI Milit. Med.
PD JAN
PY 2010
VL 175
IS 1
BP 72
EP 73
PG 2
WC Medicine, General & Internal
SC General & Internal Medicine
GA 582GN
UT WOS:000276584800017
PM 20108847
ER
PT J
AU Sommerville, DR
Bray, JJ
Reutter-Christy, SA
Jablonski, RE
Shelly, EE
AF Sommerville, Douglas R.
Bray, John J.
Reutter-Christy, Sharon A.
Jablonski, Raymond E.
Shelly, Erin E.
TI Review and Assessment of Chlorine Mammalian Lethality Data and the
Development of a Human Estimate
SO MILITARY OPERATIONS RESEARCH
LA English
DT Review
ID ACUTE INHALATION TOXICITY; RATIO VARIABLES; MAJOR HAZARDS; SPURIOUS
CORRELATION; PROBIT EXPRESSIONS; USERS GUIDE; MORTALITY; IMPACT; MODEL;
ARTIFACT
AB New human estimates for chlorine inhalation lethality as a function of exposure duration were derived via a review and statistical analysis of existing mammalian lethality data Such estimates are needed to support risk assessments and casualty predictions involving airborne releases of chlorine At present, casualty predictions for such releases are at odds with what has been observed historically, the predicted downwind hazard area has often been much larger than what was actually observed Either the present estimates for median lethal dosages (LCT(50)) are too low, the currently popular atmospheric transport and dispersion (ATD) models cannot adequately model chlorine releases, or both
LCT(50) and quantal response data were analyzed for eight species (mouse, rat, guinea pig, rabbit, cat, dog, goat and sheep), for exposure durations from 8 to 235 minutes The base 10 probit slope (concentration) was estimated via the weighted average of experimentally measured slopes in mammalian lethality studies Resulting human lethality (military) estimates as a function of exposure duration were expressed via the toxic load model General population estimates were derived from the military estimates using the mathematical method of Crosier (2007)
Previous human estimates were reviewed and compared to the new general population estimate The impact of the new estimate was evaluated through a series of transport and dispersion modeling runs for the catastrophic accidental release of 50 tons of chlorine from a tanker car The sensitivity of downwind hazard distances was also investigated as a function of median lethal toxic load (TL), toxic load exponent and probit slope values
C1 [Sommerville, Douglas R.; Reutter-Christy, Sharon A.; Shelly, Erin E.] USA, ECBC, Washington, DC 20310 USA.
RP Sommerville, DR (reprint author), USA, ECBC, Washington, DC 20310 USA.
FU Department of Homeland Security, Chemical Security Analysis Center,
Aberdeen Proving Ground, MD [SP0700-00-D-3180]
FX This study was funded by the Department of Homeland Security, Chemical
Security Analysis Center, Aberdeen Proving Ground, MD, under Contract
SP0700-00-D-3180 The study is documented in the following technical
report; Sommerville DR, Bray JJ, Reutter-Christy SA, Jablonski RE and
Shelly EE, Review and Assessment of Chlorine Mammalian Lethality Data
and the Development of a Human Estimate, CBRNIAC-SS3-628 Department of
Homeland Security, Chemical Security Analysis Center, Aberdeen Proving
Ground, MD, 23 January 2008
NR 91
TC 4
Z9 4
U1 0
U2 4
PU MILITARY OPERATIONS RESEARCH SOC
PI ALEXANDRIA
PA 1703 N BEAUREGARD ST, STE 450, ALEXANDRIA, VA 22311-1717 USA
SN 0275-5823
J9 MIL OPER RES
JI Mil. Oper. Res.
PY 2010
VL 15
IS 3
BP 59
EP 86
PG 28
WC Operations Research & Management Science
SC Operations Research & Management Science
GA 684MY
UT WOS:000284555200005
ER
PT J
AU Scharine, AA
Letowski, TR
Mermagen, T
Henry, PP
AF Scharine, Angelique A.
Letowski, Tomasz R.
Mermagen, Timothy
Henry, Paula P.
TI Learning to Detect and Identify Acoustic Environments From Reflected
Sound
SO MILITARY PSYCHOLOGY
LA English
DT Article
ID PERCEPTION; IDENTIFICATION; LOCALIZATION; LISTENERS; BLIND; BALLS;
ROOMS; SIZE
AB Reflected sounds are often treated as an acoustic problem because they produce false localization cues and decrease speech intelligibility. However, their properties are shaped by the acoustic properties of the environment and therefore are a potential source of information about that environment. The objective of this study was to determine whether information carried by reflected sounds can be used by listeners to enhance their awareness of their auditory environment. Twelve listeners participated in two auditory training tasks in which they learned to identify three environments based on a limited subset of sounds and then were tested to determine whether they could transfer that learning to new, unfamiliar sounds. Results showed that significant learning occurred despite the task difficulty. An analysis of stimulus attributes suggests that it is easiest to learn to identify reflected sound when it occurs in sounds with longer decay times and broadly distributed dominant spectral components.
C1 [Scharine, Angelique A.; Letowski, Tomasz R.; Mermagen, Timothy; Henry, Paula P.] USA, Res Lab, Aberdeen Proving Ground, MD USA.
RP Scharine, AA (reprint author), RDRL HRS D, Bldg 520, Aberdeen Proving Ground, MD 21005 USA.
EM ascharine@arl.army.mil
NR 29
TC 1
Z9 1
U1 1
U2 2
PU LAWRENCE ERLBAUM ASSOC INC-TAYLOR & FRANCIS
PI PHILADELPHIA
PA 325 CHESTNUT STREET, STE 800, PHILADELPHIA, PA 19106 USA
SN 0899-5605
J9 MIL PSYCHOL
JI Milit. Psychol.
PY 2010
VL 22
IS 1
BP 24
EP 40
DI 10.1080/08995600903206461
PG 17
WC Psychology, Multidisciplinary
SC Psychology
GA 557AS
UT WOS:000274640500003
ER
PT J
AU Cabrera, OA
Bliese, PD
Hoge, CW
Castro, CA
Messer, SC
AF Cabrera, Oscar A.
Bliese, Paul D.
Hoge, Charles W.
Castro, Carl A.
Messer, Stephen C.
TI Aggressiveness and Perceived Marital Quality: The Moderating Role of a
Family-Supportive Work Climate
SO MILITARY PSYCHOLOGY
LA English
DT Article
ID MULTILEVEL MODELS; LIFE-COURSE; SATISFACTION; VARIABLES; CONFLICT;
CONTEXT; MARRIAGE; ECOLOGY; STRESS; IMPACT
AB We examined the role of contextualized, group-level ratings of a family-supportive work climate on the link between individuals' aggressiveness and marital quality in a sample of 1,604 married male active duty soldiers from brigades in the southeastern United States. Results of multilevel analyses showed that group-level ratings of a family-supportive work climate moderated the negative individual-level link between aggressiveness and marital quality. Findings suggest that the negative association between aggressiveness and perceived marital quality may be influenced by how well the organization fosters a climate that is supportive of married soldiers' family responsibilities. Implications for work climate research and organizational policy in the military are discussed.
C1 [Cabrera, Oscar A.] Walter Reed Army Inst Res, Div Psychiat & Neurosci, Silver Spring, MD 20910 USA.
[Castro, Carl A.] USA, Med Res & Mat Command, Ft Detrick, MD USA.
[Messer, Stephen C.] Walter Reed Army Med Ctr, Washington, DC 20307 USA.
RP Cabrera, OA (reprint author), Walter Reed Army Inst Res, Div Psychiat & Neurosci, 503 Robert Grant Ave, Silver Spring, MD 20910 USA.
EM oscar.cabrera@us.army.mil
RI Messer, Stephen/B-6198-2012
OI Messer, Stephen/0000-0003-0503-9695
NR 32
TC 1
Z9 1
U1 2
U2 5
PU LAWRENCE ERLBAUM ASSOC INC-TAYLOR & FRANCIS
PI PHILADELPHIA
PA 325 CHESTNUT STREET, STE 800, PHILADELPHIA, PA 19106 USA
SN 0899-5605
J9 MIL PSYCHOL
JI Milit. Psychol.
PY 2010
VL 22
IS 1
BP 57
EP 67
DI 10.1080/08995600903417159
PG 11
WC Psychology, Multidisciplinary
SC Psychology
GA 557AS
UT WOS:000274640500005
ER
PT J
AU Durlach, PJ
Bowens, LD
AF Durlach, Paula J.
Bowens, Laticia D.
TI Effect of Icon Affiliation and Distance Moved on Detection of Icon
Position Change on a Situation Awareness Display
SO MILITARY PSYCHOLOGY
LA English
DT Article
ID INTENSITY
AB Continuous gradual change is often difficult to detect, although it may be easy to detect the difference between the initial and end state if directly compared. Two experiments examined people's ability to detect gradual changes in icon position on a situation awareness map. People observed sequences of icon moves that consisted of ten .9-mm colinear moves or five 8.75-mm colinear moves and reported when they noticed a change. The relatively small moves were less likely to be detected than the relatively large moves; however, an entire sequence of the .9 mm moves was rarely missed. Green icon moves were significantly less likely to be detected than blue or yellow icon moves. This may have been due to the stimulus features of the icons or those features in interaction with the map background. Various methods that might assist icon change detection are discussed.
C1 [Durlach, Paula J.] USA, Res Inst Behav & Social Sci, Orlando, FL 32826 USA.
[Bowens, Laticia D.] Univ Cent Florida, Orlando, FL 32816 USA.
RP Durlach, PJ (reprint author), USA, Res Inst, ATTN DAPE ARI I F Durlach, 12350 Res Pkwy, Orlando, FL 32826 USA.
EM Paula.Durlach@us.army.mil
NR 15
TC 0
Z9 0
U1 1
U2 3
PU LAWRENCE ERLBAUM ASSOC INC-TAYLOR & FRANCIS
PI PHILADELPHIA
PA 325 CHESTNUT STREET, STE 800, PHILADELPHIA, PA 19106 USA
SN 0899-5605
J9 MIL PSYCHOL
JI Milit. Psychol.
PY 2010
VL 22
IS 2
BP 98
EP 109
AR PII 920992322
DI 10.1080/08995601003638926
PG 12
WC Psychology, Multidisciplinary
SC Psychology
GA 595ZT
UT WOS:000277653700002
ER
PT J
AU Orvis, KA
Moore, JC
Belanich, J
Murphy, JS
Horn, DB
AF Orvis, Karin A.
Moore, Jennifer C.
Belanich, James
Murphy, Jennifer S.
Horn, Daniel B.
TI Are Soldiers Gamers? Videogame Usage among Soldiers and Implications for
the Effective Use of Serious Videogames for Military Training
SO MILITARY PSYCHOLOGY
LA English
DT Article
ID MOTIVATION
AB Videogames are increasingly being used for military training. One assumption is that the majority of soldiers play videogames regularly; however, research by Orvis, Horn, and Belanich (2009) found that only approximately 40% of U.S. Military Academy cadets reported moderate to heavy game-play. Given that cadets may be a special population, this research examines the frequency of videogame usage across the U.S. Army. Results indicate that fewer than 43% of over 10,000 soldiers surveyed play videogames at least weekly. Junior enlisted soldiers report the highest frequency (51-59%), whereas senior enlisted/officer ranks play much less (11-37%). Implications for utilizing serious videogames for military training are discussed.
C1 [Orvis, Karin A.] Old Dominion Univ, Dept Psychol, Norfolk, VA 23529 USA.
[Moore, Jennifer C.] George Mason Univ, Fairfax, VA 22030 USA.
[Belanich, James; Murphy, Jennifer S.] USA, Res Inst Behav & Social Sci, Arlington, VA USA.
[Horn, Daniel B.] Booz Allen Hamilton, Mclean, VA USA.
RP Orvis, KA (reprint author), Old Dominion Univ, Dept Psychol, 250 Mills Godwin Bldg, Norfolk, VA 23529 USA.
EM korvis@odu.edu
RI Orvis, Karin/A-2523-2009
NR 25
TC 12
Z9 12
U1 1
U2 15
PU LAWRENCE ERLBAUM ASSOC INC-TAYLOR & FRANCIS
PI PHILADELPHIA
PA 325 CHESTNUT STREET, STE 800, PHILADELPHIA, PA 19106 USA
SN 0899-5605
J9 MIL PSYCHOL
JI Milit. Psychol.
PY 2010
VL 22
IS 2
BP 143
EP 157
AR PII 920987526
DI 10.1080/08995600903417225
PG 15
WC Psychology, Multidisciplinary
SC Psychology
GA 595ZT
UT WOS:000277653700005
ER
PT J
AU Griffith, J
AF Griffith, James
TI Citizens Coping as Soldiers: A Review of Deployment Stress Symptoms
Among Reservists
SO MILITARY PSYCHOLOGY
LA English
DT Article
ID GULF-WAR VETERANS; MENTAL-HEALTH PROBLEMS; OPERATION DESERT-STORM;
COMPONENT SOLDIERS; SOCIAL SUPPORT; FULL-TIME; COMBAT; DISORDER; IRAQ;
MOBILIZATION
AB The present study provides a summary of studies examining the prevalence of posttraumatic stress (PTSD) and related symptoms among reserve personnel deployed during Operations Enduring Freedom and Iraqi Freedom. The few extant studies showed that in-theater and shortly after returning from deployment, reserve and active duty personnel had similar rates of PTSD and related symptoms. Sometime after deployment, reserve personnel reported higher rates of PTSD and related symptoms than active duty personnel. A work stress model is used to develop several possible explanations of findings, having implications for practices to reduce stress symptoms among reservists and for improving research and theory of future studies examining PTSD and related symptoms among reservists.
C1 [Griffith, James] USA, Natl Guard, Baltimore, MD USA.
RP Griffith, J (reprint author), 10956 Bellehaven Blvd, Damascus, MD 20872 USA.
EM GriffithJH@verizon.net
NR 65
TC 19
Z9 19
U1 1
U2 4
PU LAWRENCE ERLBAUM ASSOC INC-TAYLOR & FRANCIS
PI PHILADELPHIA
PA 325 CHESTNUT STREET, STE 800, PHILADELPHIA, PA 19106 USA
SN 0899-5605
J9 MIL PSYCHOL
JI Milit. Psychol.
PY 2010
VL 22
IS 2
BP 176
EP 206
AR PII 920991512
DI 10.1080/08995601003638967
PG 31
WC Psychology, Multidisciplinary
SC Psychology
GA 595ZT
UT WOS:000277653700007
ER
PT J
AU Picchioni, D
Cabrera, OA
McGurk, D
Thomas, JL
Castro, CA
Balkin, TJ
Bliese, PD
Hoge, CW
AF Picchioni, Dante
Cabrera, Oscar A.
McGurk, Dennis
Thomas, Jeffrey L.
Castro, Carl A.
Balkin, Thomas J.
Bliese, Paul D.
Hoge, Charles W.
TI Sleep Symptoms as a Partial Mediator Between Combat Stressors and Other
Mental Health Symptoms in Iraq War Veterans
SO MILITARY PSYCHOLOGY
LA English
DT Article
ID IMAGERY REHEARSAL THERAPY; POSTTRAUMATIC NIGHTMARES;
PSYCHIATRIC-DISORDERS; PRIMARY INSOMNIA; DEPRESSION; DISTURBANCES; PTSD;
CHECKLIST; FREQUENCY; SECONDARY
AB Sleep symptoms are a prominent feature of mental health disorders like PTSD and depression. However, it is unknown whether sleep symptoms mediate the relationship between combat stress and these disorders. We examined the mediating role of sleep symptoms on the relationship between combat stress and PTSD; and the relationship between combat stress and depression using data from 576 Army veterans of the Iraq War surveyed in 2004. Correlational analyses revealed that when insomnia was included in the model, the correlation between combat stressors and other depression symptoms decreased by 65%; and when nightmares were included in the model, the correlation between combat stressors and other PTSD symptoms decreased by 69%. We replicated these analyses using individual items assessing PTSD and depression and found that the insomnia and nightmare items had the largest and second largest mediation effect between combat stressors and PTSD and depression symptoms. Our result support the theory that sleep symptoms contribute to the development and/or maintenance of other mental health symptoms and that early treatment of sleep symptoms may mitigate the other mental health consequences of combat stress.
C1 [Picchioni, Dante; Cabrera, Oscar A.; McGurk, Dennis; Thomas, Jeffrey L.; Castro, Carl A.; Balkin, Thomas J.; Bliese, Paul D.; Hoge, Charles W.] Walter Reed Army Inst Res, Div Psychiat & Neurosci, Dept Behav Biol, Silver Spring, MD 20910 USA.
RP Picchioni, D (reprint author), Walter Reed Army Inst Res, Div Psychiat & Neurosci, Dept Behav Biol, 503 Robert Grant Ave, Silver Spring, MD 20910 USA.
EM dante.picchioni@amedd.army.mil
NR 43
TC 16
Z9 16
U1 2
U2 4
PU LAWRENCE ERLBAUM ASSOC INC-TAYLOR & FRANCIS
PI PHILADELPHIA
PA 325 CHESTNUT STREET, STE 800, PHILADELPHIA, PA 19106 USA
SN 0899-5605
J9 MIL PSYCHOL
JI Milit. Psychol.
PY 2010
VL 22
IS 3
BP 340
EP 355
AR PII 924299363
DI 10.1080/08995605.2010.491844
PG 16
WC Psychology, Multidisciplinary
SC Psychology
GA 624UV
UT WOS:000279848100006
ER
PT J
AU Hammermeister, J
Pickering, MA
McGraw, L
Ohlson, C
AF Hammermeister, Jon
Pickering, Michael A.
McGraw, Leigh
Ohlson, Carl
TI Relationship Between Psychological Skill Profiles and Soldier Physical
Fitness Performance
SO MILITARY PSYCHOLOGY
LA English
DT Article
ID OLYMPIC PERFORMANCE; SPORT; MILITARY; INTERVENTIONS; PERCEPTIONS;
STRATEGIES; CHAMPIONS; ATLANTA
AB We examine the structure of soldier's psychological skills and assess the relationship between psychological skills profiles and physical performance with data from 427 soldiers from a Stryker Brigade. Exploratory factor analyses results provided empirical support for a three-factor structure that included foundation skills, psychosomatic skills, and cognitive skills. Cluster analysis revealed three emergent psychological skills profile groups: (a) strong skills, (b) weak skills, and (c) fearful focus clusters. Soldiers in the strong psychological skill profile group performed better than their peers in the other profile groups on the Army Physical Fitness Test (APFT) performance measure. We discuss the implications of our findings for theory, research, and practice.
C1 [Hammermeister, Jon; Pickering, Michael A.; Ohlson, Carl] USA, Ctr Enhanced Performance, US Mil Acad, West Point, NY 10996 USA.
[McGraw, Leigh] Madigan Army Med Ctr, Nursing Res Serv, Ft Lewis, WA USA.
RP Hammermeister, J (reprint author), USA, Ctr Enhanced Performance, US Mil Acad, 745A Brewerton Rd, West Point, NY 10996 USA.
EM Jon.Hammermeister@us.army.mil
NR 36
TC 2
Z9 2
U1 2
U2 4
PU LAWRENCE ERLBAUM ASSOC INC-TAYLOR & FRANCIS
PI PHILADELPHIA
PA 325 CHESTNUT STREET, STE 800, PHILADELPHIA, PA 19106 USA
SN 0899-5605
J9 MIL PSYCHOL
JI Milit. Psychol.
PY 2010
VL 22
IS 4
BP 399
EP 411
AR PII 927982044
DI 10.1080/08995605.2010.513238
PG 13
WC Psychology, Multidisciplinary
SC Psychology
GA 664PY
UT WOS:000282975700003
ER
PT J
AU Hannah, ST
Jennings, PL
Nobel, OBY
AF Hannah, Sean T.
Jennings, Peter L.
Nobel, Orly Ben-Yoav
TI Tactical Military Leader Requisite Complexity: Toward a Referent
Structure
SO MILITARY PSYCHOLOGY
LA English
DT Article
ID BEHAVIORAL COMPLEXITY; ADAPTIVE PERFORMANCE; TRANSACTIVE MEMORY;
SELF-COMPLEXITY; IDENTITY; MODEL; ADAPTABILITY; KNOWLEDGE; SKILL;
MOTIVATION
AB The U.S. Army has focused on developing leader competencies in order to promote adaptability for asymmetric warfare. Expanding leader adaptive capacity, however, requires integrating competencies with deeper knowledge structures and leader identity. We conduct a three-stage exploratory study using semistructured interviews and three separate samples of experienced combat leaders to assess the organization of tactical leader functional roles. We identify the breadth of roles, tasks, skills, and attributes representative of expert tactical military leaders. We hope to take a first step in circumscribing the requisite cognitive and behavioral complexity required of tactical leaders and thereby provide a referent structure for future research on what constitutes requisite complexity for tactical military leaders.
C1 [Hannah, Sean T.] US Mil Acad, USA, Ctr Army Profess & Eth, Training & Doctrine Command, West Point, NY 10996 USA.
[Jennings, Peter L.] Arizona State Univ, Dept Management, Tempe, AZ 85287 USA.
[Nobel, Orly Ben-Yoav] US Mil Acad, Dept Behav Sci & Leadership, West Point, NY 10996 USA.
RP Hannah, ST (reprint author), US Mil Acad, USA, Ctr Army Profess & Eth, Training & Doctrine Command, 646 Swift Rd, West Point, NY 10996 USA.
EM Sean.Hannah@usma.edu
NR 125
TC 3
Z9 3
U1 1
U2 9
PU LAWRENCE ERLBAUM ASSOC INC-TAYLOR & FRANCIS
PI PHILADELPHIA
PA 325 CHESTNUT STREET, STE 800, PHILADELPHIA, PA 19106 USA
SN 0899-5605
J9 MIL PSYCHOL
JI Milit. Psychol.
PY 2010
VL 22
IS 4
BP 412
EP 449
AR PII 927982112
DI 10.1080/08995605.2010.513253
PG 38
WC Psychology, Multidisciplinary
SC Psychology
GA 664PY
UT WOS:000282975700004
ER
PT B
AU Bilchik, AJ
Gonzalez, MM
Stojadinovic, A
AF Bilchik, Anton J.
Gonzalez, Maria M.
Stojadinovic, Alexander
BE Greene, FL
Heniford, T
TI The Applications of Sentinel Lymph Node to Cancer
SO MINIMALLY INVASIVE CANCER MANAGEMENT, SECOND EDITION
LA English
DT Article; Book Chapter
ID CELL LUNG-CANCER; EARLY-STAGE MELANOMA; ROUTINE AXILLARY DISSECTION;
SURGICAL ADJUVANT BREAST; RESECTABLE COLON-CANCER; GASTRIC-CANCER;
MULTICENTER TRIAL; NECK-CANCER; ORAL-CAVITY; NEOADJUVANT CHEMOTHERAPY
C1 [Bilchik, Anton J.] Univ Calif Los Angeles, David Geffen Sch Med, Los Angeles, CA 90095 USA.
[Bilchik, Anton J.] Calif Oncol Res Inst, Santa Monica, CA 90403 USA.
[Gonzalez, Maria M.] St Joseph Hosp, Ctr Canc Prevent & Treatment, Orange, CA 92868 USA.
[Stojadinovic, Alexander] Walter Reed Army Med Ctr, Dept Surg, Washington, DC 20307 USA.
RP Bilchik, AJ (reprint author), Univ Calif Los Angeles, David Geffen Sch Med, Los Angeles, CA 90095 USA.
NR 137
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-1237-4
PY 2010
BP 343
EP 358
DI 10.1007/978-1-4419-1238-1_25
D2 10.1007/978-1-4419-1238-1
PG 16
WC Oncology; Surgery
SC Oncology; Surgery
GA BRB23
UT WOS:000282298500025
ER
PT S
AU Deaver, DM
Kang, R
Tran, V
Oxford, D
AF Deaver, Dawne M.
Kang, Robin
Tran, Vinh
Oxford, David
BE Kelmelis, EJ
TI PerSEval phase I: development of a 3D urban terrain model for evaluation
of persistent surveillance sensors and video-based tracking algorithms
SO MODELING AND SIMULATION FOR DEFENSE SYSTEMS AND APPLICATIONS V
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Modeling and Simulation for Defence Systems and
Applications V
CY APR 06-07, 2010
CL Orlando, FL
SP SPIE
DE Persistent Surveillance; Infrared Simulation; Traffic Modeling; Airborne
Sensor; Test Bed
AB PerSEval is a modeling and simulation tool being developed for end-to-end evaluation of airborne persistent surveillance imaging sensor systems. This class of sensor systems is characterized by having a wide coverage area over an extended period of time and operating in either visible or thermal infrared wavebands. Current operational systems are heavily used by image analysts for tracking vehicles or dismounted personnel, with an emphasis in urban areas of interest. Future persistent surveillance systems will include automated ground target tracking algorithms to alleviate analyst workload. As a system evaluation tool, PerSEval will include dependencies on the scenario, platform, sensor, processing, and tracking algorithm. This paper describes the overall PerSEval architecture as well as the first phase of development which focuses on the creation of a three-dimensional urban terrain simulation appropriate for the evaluation of automated tracking algorithms.
C1 [Deaver, Dawne M.] USA, RDECOM, CERDEC, NVESD, Ft Belvoir, VA 22060 USA.
RP Deaver, DM (reprint author), USA, RDECOM, CERDEC, NVESD, 10221 Burbeck Dr, Ft Belvoir, VA 22060 USA.
NR 10
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8169-6
J9 PROC SPIE
PY 2010
VL 7705
AR 770508
DI 10.1117/12.850421
PG 12
WC Engineering, Aerospace; Computer Science, Information Systems; Remote
Sensing; Optics
SC Engineering; Computer Science; Remote Sensing; Optics
GA BSU89
UT WOS:000285842000005
ER
PT S
AU Schleper, R
Gaughan, C
Kierzewski, MO
Dunmire, C
Salvi, L
Fann, J
Kellihan, B
AF Schleper, Roger
Gaughan, Chris
Kierzewski, Michael O.
Dunmire, Carolyn
Salvi, Luci
Fann, Joey
Kellihan, Bret
BE Kelmelis, EJ
TI Individual Warfighter Effectiveness and Survivability in a CBRN Threat
Environment
SO MODELING AND SIMULATION FOR DEFENSE SYSTEMS AND APPLICATIONS V
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference On Modeling and Simulation for Defence Systems and
Applications V
CY APR 06-07, 2010
CL Orlando, FL
SP SPIE
DE CBRN; Dismounted Infantry; C3; Human Performance; MATREX
AB The effort described in this paper attempts to enhance the state-of-the-art to model high-fidelity (hi-fi) dismounted infantry interactions with a realistic Chemical, Biological, Radiological, Nuclear (CBRN) hazard. There is limited CBRN Modeling & Simulation (M&S) capability for research, training and doctrine development. Although numerous ground and plume hazards simulations exist, few model the entire problem space.
To this end, the following three hi-fi simulations were federated: 1) The Infantry Warrior Simulation (IWARS); 2) The Command Control, and Communications Human Performance Model (C3HPM); and, 3) The CBRN Simulation Suite via High Level Architecture (HLA) using the Modeling Architecture for Technology, Research and EXperimentation (MATREX) architecture.
The goal of this federation is to provide an integrated capability that will allow analysis of CBRN sensors and Warfighter protective equipment in the context of a complex battlefield environment with dismounted infantry missions/tactics. The IWARS provides representation of dismounted entities and their decisions/physical tasks in a battlefield environment. The C3HPM provides task degradation data due to presence of various CBRN threats and due to wearing of CBRN protective equipment. The CBRN Sim Suite provides dynamic threat events/propagation, high fidelity CBRN sensor representations with tactical message output, CBRN injury based on exposure dosage/concentration and entity protection.
C1 [Schleper, Roger] USA, Soldier Syst Ctr, Natick, MA 01760 USA.
RP Schleper, R (reprint author), USA, Soldier Syst Ctr, Kansas St, Natick, MA 01760 USA.
NR 11
TC 0
Z9 0
U1 1
U2 5
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8169-6
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7705
AR 77050M
DI 10.1117/12.851903
PG 12
WC Engineering, Aerospace; Computer Science, Information Systems; Remote
Sensing; Optics
SC Engineering; Computer Science; Remote Sensing; Optics
GA BSU89
UT WOS:000285842000017
ER
PT J
AU Marian, J
Venturini, G
Hansen, BL
Knap, J
Ortiz, M
Campbell, GH
AF Marian, J.
Venturini, G.
Hansen, B. L.
Knap, J.
Ortiz, M.
Campbell, G. H.
TI Finite-temperature extension of the quasicontinuum method using Langevin
dynamics: entropy losses and analysis of errors
SO MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING
LA English
DT Article
ID STOCHASTIC DIFFERENTIAL-EQUATIONS; THERMODYNAMIC PROPERTIES; VARIATIONAL
INTEGRATORS; NUMERICAL-INTEGRATION; MOLECULAR-DYNAMICS;
THERMAL-EXPANSION; FREE-ENERGY; SOLIDS; SIMULATIONS; ALGORITHMS
AB The concurrent bridging of molecular dynamics and continuum thermodynamics presents a number of challenges, mostly associated with energy transmission and changes in the constitutive description of a material across domain boundaries. In this paper, we propose a framework for simulating coarse dynamic systems in the canonical ensemble using the quasicontinuum method (QC). The equations of motion are expressed in reduced QC coordinates and are strictly derived from dissipative Lagrangian mechanics. The derivation naturally leads to a classical Langevin implementation where the timescale is governed by vibrations emanating from the finest length scale occurring in the computational cell. The equations of motion are integrated explicitly via Newmark's (beta = 0; gamma = 1/2) method, which is parametrized to ensure overdamped dynamics. In this fashion, spurious heating due to reflected vibrations is suppressed, leading to stable canonical trajectories. To estimate the errors introduced by the QC reduction in the resulting dynamics, we have quantified the vibrational entropy losses in Al uniform meshes by calculating the thermal expansion coefficient for a number of conditions. We find that the entropic depletion introduced by coarsening varies linearly with the element size and is independent of the nodal cluster diameter. We rationalize the results in terms of the system, mesh and cluster sizes within the framework of the quasiharmonic approximation. The limitations of the method and alternatives to mitigate the errors introduced by coarsening are discussed. This work represents the first of a series of studies aimed at developing a fully non-equilibrium finite-temperature extension of QC.
C1 [Marian, J.; Campbell, G. H.] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94551 USA.
[Venturini, G.; Hansen, B. L.; Ortiz, M.] CALTECH, Div Engn & Appl Sci, Pasadena, CA 91125 USA.
[Knap, J.] USA, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
RP Marian, J (reprint author), Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94551 USA.
EM marian1@llnl.gov
RI Campbell, Geoffrey/F-7681-2010
NR 70
TC 23
Z9 23
U1 2
U2 15
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0965-0393
J9 MODEL SIMUL MATER SC
JI Model. Simul. Mater. Sci. Eng.
PD JAN
PY 2010
VL 18
IS 1
AR 015003
DI 10.1088/0965-0393/18/1/015003
PG 31
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA 532ZX
UT WOS:000272791800003
ER
PT B
AU Leberg, PL
Athrey, GNR
Barr, KR
Lindsay, DL
Lance, RF
Etterson, JR
Holmstrom, RM
AF Leberg, Paul L.
Athrey, Giridhar N. R.
Barr, Kelly R.
Lindsay, Denise L.
Lance, Richard F.
Etterson, Julie R.
Holmstrom, Rebecca M.
BE DeWoody, JA
Bickham, JW
Michler, CH
Nichols, KM
Rhodes, OE
Woeste, KE
TI Implications of landscape alteration for the conservation of genetic
diversity of endangered species
SO MOLECULAR APPROACHES IN NATURAL RESOURCE CONSERVATION AND MANAGEMENT
LA English
DT Article; Book Chapter
ID GOLDEN-CHEEKED WARBLER; BLACK-CAPPED VIREO; HABITAT FRAGMENTATION;
POPULATION-STRUCTURE; RESTRICTED DISPERSAL; MICROSATELLITE DNA; FLOW;
CONSEQUENCES; DIFFERENTIATION; EXTINCTION
C1 [Leberg, Paul L.; Athrey, Giridhar N. R.; Barr, Kelly R.] Univ Louisiana Lafayette, Dept Biol, Lafayette, LA 70504 USA.
[Lindsay, Denise L.; Lance, Richard F.] USA, Engineer Res & Dev Ctr, Environm Lab, Vicksburg, MS USA.
[Etterson, Julie R.; Holmstrom, Rebecca M.] Univ Minnesota, Dept Biol, Duluth, MN 55812 USA.
RP Leberg, PL (reprint author), Univ Louisiana Lafayette, Dept Biol, Lafayette, LA 70504 USA.
NR 107
TC 3
Z9 3
U1 0
U2 7
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
BN 978-0-521-51564-1
PY 2010
BP 212
EP 238
PG 27
WC Biodiversity Conservation; Biochemistry & Molecular Biology; Ecology
SC Biodiversity & Conservation; Biochemistry & Molecular Biology;
Environmental Sciences & Ecology
GA BTP04
UT WOS:000287675400010
ER
PT J
AU Kehn-Hall, K
Bavari, S
AF Kehn-Hall, Kylene
Bavari, Sina
BE Patrinos, GP
Ansorge, WJ
TI Detection of Highly Pathogenic Viral Agents: Implications for
Therapeutics, Vaccines and Biodefense
SO MOLECULAR DIAGNOSTICS, 2ND EDITION
LA English
DT Article; Book Chapter
ID CONGO HEMORRHAGIC-FEVER; TIME RT-PCR; REVERSE-TRANSCRIPTASE-PCR;
FLUOROGENIC 5'-NUCLEASE ASSAY; PRIMER-TEMPLATE MISMATCHES;
POLYMERASE-CHAIN-REACTION; FILOVIRUS-LIKE PARTICLES; MARBURG
VIRUS-INFECTION; EBOLA-VIRUS; RENAL-SYNDROME
C1 [Kehn-Hall, Kylene] George Washington Univ, Dept Microbiol Immunol & Trop Med, Washington, DC 20037 USA.
[Bavari, Sina] USA, Med Res Inst Infect Dis, Bacteriol Div, Ft Detrick, MD 21702 USA.
RP Kehn-Hall, K (reprint author), George Washington Univ, Dept Microbiol Immunol & Trop Med, 2300 I St NW,Ross Hall,Room 551, Washington, DC 20037 USA.
RI Kehn-Hall, Kylene/I-5752-2013
NR 92
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER ACADEMIC PRESS INC
PI SAN DIEGO
PA 525 B STREET, SUITE 1900, SAN DIEGO, CA 92101-4495 USA
BN 978-0-08-092318-5
PY 2010
BP 417
EP 429
DI 10.1016/B978-0-12-374537-8.00028-6
PG 13
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA BCO38
UT WOS:000310852300031
ER
PT J
AU Li, QG
Weina, PJ
AF Li, Qigui
Weina, Peter J.
TI Severe Embryotoxicity of Artemisinin Derivatives in Experimental
Animals, but Possibly Safe in Pregnant Women
SO MOLECULES
LA English
DT Review
DE Artemisinins; artesunate; dihydroartemisinin; embryotoxicity;
pharmacokinetics; pregnant animals; pregnant women
ID UNCOMPLICATED FALCIPARUM-MALARIA; RESISTANT PLASMODIUM-FALCIPARUM; DRUG
DIHYDROARTEMISININ DHA; ARTESUNATE-ATOVAQUONE-PROGUANIL; IN-VITRO;
DEVELOPMENTAL TOXICITY; SULFADOXINE-PYRIMETHAMINE; PREVENTION PROGRAMS;
ANTIMALARIAL-DRUGS; RESCUE TREATMENT
AB Preclinical studies in rodents have demonstrated that artemisinins, especially injectable artesunate, can induce fetal death and congenital malformations at a low dose range. The embryotoxicity can be induced in those animals only within a narrow window in early embryogenesis. Evidence was presented that the mechanism by which embryotoxicity of artemisinins occurs seems to be limited to fetal erythropoiesis and vasculogenesis/angiogenesis on the very earliest developing red blood cells, causing severe anemia in the embryos with higher drug peak concentrations. However, this embryotoxicity has not been convincingly observed in clinical trials from 1,837 pregnant women, including 176 patients in the first trimester exposed to an artemisinin agent or artemisinin-based combination therapy (ACT) from 1989 to 2009. In the rodent, the sensitive early red cells are produced synchronously over one day with single or multiple exposures to the drug can result in a high proportion of cell deaths. In contrast, primates required a longer period of treatment of 12 days to induce such embryonic loss. In humans only limited information is available about this stage of red cell development; however, it is known to take place over a longer time period, and it may well be that a limited period of treatment of 2 to 3 days for malaria would not produce serious toxic effects. In addition, current oral intake, the most commonly used route of administration in pregnant women with an ACT, results in lower peak concentration and shorter exposure time of artemisinins that demonstrated that such a concentration-course profile is unlikely to induce the embryotoxicity. When relating the animal and human toxicity of artemisinins, the different drug sensitive period and pharmacokinetic profiles as reviewed in the present report may provide a great margin of safety in the pregnant women.
C1 [Li, Qigui; Weina, Peter J.] Walter Reed Army Med Ctr, Div Expt Therapeut, Washington, DC 20307 USA.
RP Li, QG (reprint author), Walter Reed Army Med Ctr, Div Expt Therapeut, 503 Robert Grant Ave, Washington, DC 20307 USA.
EM qigui.li@amedd.army.mil
FU United States Army Research and Materiel Command
FX This study was supported by the United States Army Research and Materiel
Command. The opinions or assertions contained herein are the private
views of the author and are not to be construed as official, or as
reflecting true views of the Department of the Army or the Department of
Defense.
NR 63
TC 10
Z9 12
U1 0
U2 5
PU MOLECULAR DIVERSITY PRESERVATION INTERNATIONAL-MDPI
PI BASEL
PA KANDERERSTRASSE 25, CH-4057 BASEL, SWITZERLAND
SN 1420-3049
J9 MOLECULES
JI Molecules
PD JAN
PY 2010
VL 15
IS 1
BP 40
EP 57
DI 10.3390/molecules15010040
PG 18
WC Chemistry, Organic
SC Chemistry
GA 548WK
UT WOS:000274000000004
PM 20110870
ER
PT B
AU Hakami, RM
Alves, DA
AF Hakami, Ramin Mollaaghababa
Alves, Derron A.
BE Tyring, SK
Moore, AY
Lupi, O
TI Filoviruses: Pathology and Effects on the Innate Immune Response
SO MUCOCUTANEOUS MANIFESTATIONS OF VIRAL DISEASES, 2ND EDITION
LA English
DT Article; Book Chapter
ID EBOLA HEMORRHAGIC-FEVER; VIRUS-INFECTED PATIENTS; INFLAMMATORY
RESPONSES; MARBURG VIRUS; DENDRITIC CELLS; RHESUS-MONKEYS; PATHOGENESIS;
GLYCOPROTEINS; VACCINE; KIKWIT
C1 [Hakami, Ramin Mollaaghababa] Oak Ridge Associated Univ, Fac Res Participat Program, Belcamp, MD 21017 USA.
[Hakami, Ramin Mollaaghababa; Alves, Derron A.] US Army, Med Res Inst Infect Dis, Frederick, MD USA.
RP Hakami, RM (reprint author), Oak Ridge Associated Univ, Fac Res Participat Program, Belcamp, MD 21017 USA.
NR 48
TC 1
Z9 1
U1 0
U2 0
PU INFORMA HEALTHCARE
PI LONDON
PA TELEPHONE HOUSE, 69-77 PAUL ST, LONDON, EC2A 4LQ, ENGLAND
BN 978-1-4200-7313-3; 978-1-4200-7312-6
PY 2010
BP 368
EP 374
D2 10.3109/9781420073133
PG 7
WC Dermatology; Virology
SC Dermatology; Virology
GA BD6NE
UT WOS:000362405300018
ER
PT S
AU Burks, SD
Doe, JM
AF Burks, Stephen D.
Doe, Joshua M.
BE Braun, JJ
TI Dynamic image fusion and general observer preference
SO MULTISENSOR, MULTISOURCE INFORMATION FUSION: ARCHITECTURES, ALGORITHMS,
AND APPLICATIONS 2010
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Multisensor, Multisource Information Fusion -
Architectures, Algorithms and Applications 2010
CY APR 07-08, 2010
CL Orlando, FL
SP SPIE
AB Recent developments in image fusion give the user community many options for ways of presenting the imagery to an end-user. Individuals at the US Army RDECOM CERDEC Night Vision and Electronic Sensors Directorate have developed an electronic system that allows users to quickly and efficiently determine optimal image fusion algorithms and color parameters based upon collected imagery and videos from environments that are typical to observers in a military environment. After performing multiple multi-band data collections in a variety of military-like scenarios, different waveband, fusion algorithm, image post-processing, and color choices are presented to observers as an output of the fusion system. The observer preferences can give guidelines as to how specific scenarios should affect the presentation of fused imagery.
C1 [Burks, Stephen D.; Doe, Joshua M.] USA, RDECOM, CERDEC, Night Vis & Elect Sensors Directorate, Ft Belvoir, VA 22060 USA.
RP Burks, SD (reprint author), USA, RDECOM, CERDEC, Night Vis & Elect Sensors Directorate, 10221 Burbeck Rd, Ft Belvoir, VA 22060 USA.
RI Doe, Jane/B-8500-2015
NR 5
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8174-0
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7710
AR 77100N
DI 10.1117/12.850885
PG 7
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BSO05
UT WOS:000285049500018
ER
PT S
AU Kelley, TD
Avery, E
AF Kelley, Troy Dale
Avery, Eric
BE Braun, JJ
TI A Cognitive Robotics System: The Symbolic and Subsymbolic Robotics
Intelligence Control System (SS-RICS)
SO MULTISENSOR, MULTISOURCE INFORMATION FUSION: ARCHITECTURES, ALGORITHMS,
AND APPLICATIONS 2010
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Multisensor, Multisource Information Fusion -
Architectures, Algorithms and Applications 2010
CY APR 07-08, 2010
CL Orlando, FL
SP SPIE
DE cognitive architectures; robotics; cognition; working memory; context
ID NEURAL NETWORK
AB This paper will detail the progress on the development of the Symbolic and Subsymbolic Robotics Intelligence Control System (SS-RICS). The system is a goal oriented production system, based loosely on the cognitive architecture, the Adaptive Control of Thought-Rational (ACT-R) some additions and changes. We have found that in order to simulate complex cognition on a robot, many aspects of cognition (long term memory (LTM), perception) needed to be in place before any generalized intelligent behavior can be produced. In working with ACT-R, we found that it was a good instantiation of working memory, but that we needed to add other aspects of cognition including LTM and perception to have a complete cognitive system. Our progress to date will be noted and the challenges that remain will be addressed.
C1 [Kelley, Troy Dale; Avery, Eric] USA, Res Lab, Aberdeen, MD 21005 USA.
RP Kelley, TD (reprint author), USA, Res Lab, Aberdeen, MD 21005 USA.
EM troy.kelley@us.army.mil; eric.s.avery@us.army.mil
NR 9
TC 2
Z9 2
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8174-0
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7710
AR 77100I
DI 10.1117/12.853349
PG 9
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BSO05
UT WOS:000285049500014
ER
PT J
AU Chiang, LY
Anandakathir, R
Hauck, TS
Lee, L
Canteenwala, T
Padmawar, PA
Pritzker, K
Bruno, FF
Samuelson, LA
AF Chiang, Long Y.
Anandakathir, Robinson
Hauck, Tanya S.
Lee, Lawrence
Canteenwala, Taizoon
Padmawar, Prashant A.
Pritzker, Kenneth
Bruno, Ferdinando F.
Samuelson, Lynne A.
TI Synthesis of covalently attached hexadecaanilines on carbon nanotubes:
toward electronic nanocarbon preparation
SO NANOSCALE
LA English
DT Article
ID DIAZONIUM SALTS; ELECTROCHEMICAL REDUCTION; CONDUCTING POLYMERS;
POLYANILINE; COMPOSITE; SUPERCAPACITORS; CAPACITORS; POLYMERIZATION;
PERFORMANCE; FUNCTIONALIZATION
AB We describe the direct covalent-grafting synthesis of well-defined aniline oligomers, such as tetraaniline (A(4)) and hexadecaaniline (A(16), major)/eicosaaniline (A(20), minor), on the sidewalls of carbon nanotubes (CNTs), via dediazonization reaction, for achieving highly soluble nanomaterials suitable for printing purposes, with long-term physical stability. Chemically grafting a layer of electroactive hexadecaanilines on CNTs resembles semiconductive encapsulation of functionalized CNTs. The resulting covalent nanoconjugates SWNT-(A(4))(x), MWNT-(A(4))(x), SWNT-(A(16/20))(x), and MWNT-(A(16/20))(x) were characterized by various spectroscopic and microscopic mapping methods. The combination of transmission electron microscopy (TEM) and electron energy loss spectroscopy (EELS) analyses provided direct evidence for A(16/20) attachment to the CNTs, giving confirmation of the presence of heteroatoms surrounding the CNTs that was absent in the parent CNTs. Subsequent atom mapping in the vicinity of the tube structure allowed us to illustrate the 3D distribution of heteroatoms along the CNT surface.
C1 [Chiang, Long Y.; Anandakathir, Robinson; Canteenwala, Taizoon; Padmawar, Prashant A.] Univ Massachusetts, Dept Chem, Lowell, MA 01854 USA.
[Hauck, Tanya S.; Lee, Lawrence; Pritzker, Kenneth] Univ Toronto, Pathol & Lab Med, Toronto, ON, Canada.
[Bruno, Ferdinando F.; Samuelson, Lynne A.] USA, RDECOM, Natick Soldier Ctr, Natick, MA 01760 USA.
RP Chiang, LY (reprint author), Univ Massachusetts, Dept Chem, Lowell, MA 01854 USA.
EM Long_Chiang@uml.edu
FU Air Force Office of Scientific Research [FA9550-09-1-0380,
FA9550-09-1-0183]; U.S. Army Soldier Command [DAAD16-01-C-0011]
FX The authors at UML thank the support of Air Force Office of Scientific
Research under the grant numbers FA9550-09-1-0380 and FA9550-09-1-0183
and U.S. Army Soldier Command under the contract number
DAAD16-01-C-0011.
NR 46
TC 5
Z9 5
U1 5
U2 31
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 2040-3364
J9 NANOSCALE
JI Nanoscale
PY 2010
VL 2
IS 4
BP 535
EP 541
DI 10.1039/b9nr00255c
PG 7
WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials
Science, Multidisciplinary; Physics, Applied
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 580SK
UT WOS:000276469800011
PM 20644756
ER
PT S
AU Wagner, GW
AF Wagner, George W.
BE Erickson, LE
Koodali, RT
Richards, RM
TI Decontamination of Chemical Warfare Agents with Nanosize Metal Oxides
SO NANOSCALE MATERIALS IN CHEMISTRY : ENVIRONMENTAL APPLICATIONS
SE ACS Symposium Series
LA English
DT Proceedings Paper
CT 237th National Meeting of the American-Chemical-Society
CY MAR 22-26, 2009
CL Salt Lake City, UT
SP Amer Chem Soc
ID VX; HD; GD; AL2O3; MAS
AB Chemical warfare agents (CWA) VX, GD, and HD react with nanosize metal oxides to form non-toxic product, thus affording their decontamination. Reactions of these CWA with several nanocrystalline reactive sorbents of varied particle size and surface area are examined with regard to both reaction kinetics and their ability to decontaminate Chemical Agent Resistant Coating (CARC) paint, used on military vehicles. The results are compared to the currently-fielded Sorbent Decon System (SDS) A-200 sorbent. For VX the best sorbent was nTiO(2) which exhibited a half-life for sorbed VX of less than 2 min. Half-lives of tens-of-minutes were observed for GD on nTiO(2), nMgO, and the commercial FAST-ACT (R) sorbent. Half-lives of a few to many hours were observed for HD on nAl(2)O(3), nTiO(2), FAST-ACT (R), and A-200, but only with sufficient surface hydration. With regard to reactivity only, A-200 did not perform as well as the nanocrystalline sorbents, especially for VX and GD. However, all of the sorbents, A-200 included, provided for the comparable removal/decontamination of HD and GD from CARC panels, ca. 75 % and 87 %, respectively.
C1 USA, Edgewood Chem Biol Ctr, Attn RDCB DRP R, Aberdeen Proving Ground, MD 21010 USA.
RP Wagner, GW (reprint author), USA, Edgewood Chem Biol Ctr, Attn RDCB DRP R, 5183 Blackhawk Rd, Aberdeen Proving Ground, MD 21010 USA.
EM george.wagner@us.army.mil
NR 19
TC 1
Z9 1
U1 5
U2 16
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 USA
SN 0097-6156
BN 978-0-8412-2555-8
J9 ACS SYM SER
JI ACS Symp. Ser.
PY 2010
VL 1045
BP 125
EP 136
PG 12
WC Chemistry, Multidisciplinary; Engineering, Environmental; Nanoscience &
Nanotechnology
SC Chemistry; Engineering; Science & Technology - Other Topics
GA BVJ54
UT WOS:000291666300007
ER
PT S
AU Ruffin, PB
Edwards, E
Brantley, C
McDonald, B
AF Ruffin, Paul B.
Edwards, Eugene
Brantley, Christina
McDonald, Brian
BE Varadan, VK
TI Exploratory Procedures with Carbon Nanotube-based Sensors for Propellant
Degradation Determinations
SO NANOSENSORS, BIOSENSORS, AND INFO-TECH SENSORS AND SYSTEMS 2010
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Nanosensors, Biosensors, and Info-Tech Sensors and Systems
CY MAR 08-11, 2010
CL San Diego, CA
SP SPIE, Amer Soc Mechan Engn
DE Propellant; rocket motor; off-gassing; automated testing; shelf-life;
degradation; weaponry
ID SOLID-PROPELLANT
AB Exploratory research is conducted at the US Army Aviation & Missile Research, Development, and Engineering Center (AMRDEC) in order to perform assessments of the degradation of solid propellant used in rocket motors. Efforts are made to discontinue and/or minimize destructive methods and utilize nondestructive techniques to assure the quality and reliability of the weaponry's propulsion system. Collaborative efforts were successfully made between AMRDEC and NASA-Ames for potential add-on configurations to a previously designed sensor that AMRDEC plan to use for preliminary detection of off-gassing. Evaluations were made in order to use the design as the introductory component for the determination of shelf-life degradation rate of rocket motors. Previous and subsequent sensor designs utilize functionalized single-walled carbon nano-tubes (SWCNTs) as the key sensing element. On-going research is conducted to consider key changes that can be implemented (for the existing sensor design) such that a complete wireless sensor system design can be realized. Results should be a cost-saving and timely approach to enhance the Army's ability to develop methodologies for measuring weaponry off-gassing and simultaneously detecting explosives. Expectations are for the resulting sensors to enhance the warfighters' ability to simultaneously detect a greater variety of analytes.
Outlined in this paper are the preliminary results that have been accomplished for this research. The behavior of the SWCNT sensor at storage temperatures is outlined, along with the initial sensor response to propellant related analytes. Preparatory computer-based programming routines and computer controlled instrumentation scenarios have been developed in order to subsequently minimize subjective interpretation of test results and provide a means for obtaining data that is reasonable and repetitively quantitative. Typical laboratory evaluation methods are likewise presented, and program limitations/barriers are outlined.
C1 [Ruffin, Paul B.; Edwards, Eugene; Brantley, Christina; McDonald, Brian] USA, Res Dev & Engn Command, ATTN AMSRD RDMR, Redstone Arsenal, AL 35898 USA.
RP Ruffin, PB (reprint author), USA, Res Dev & Engn Command, ATTN AMSRD RDMR, Redstone Arsenal, AL 35898 USA.
EM paul.ruffin@us.army.mil
NR 9
TC 0
Z9 0
U1 1
U2 8
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8061-3
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7646
AR 764602
DI 10.1117/12.849558
PG 11
WC Nanoscience & Nanotechnology; Remote Sensing; Optics
SC Science & Technology - Other Topics; Remote Sensing; Optics
GA BSQ85
UT WOS:000285502000001
ER
PT S
AU Zunino, JL
Iqbal, Z
AF Zunino, James L., III
Iqbal, Zafar
BE Varadan, VK
TI Thermal indicating paints for ammunition health monitoring
SO NANOSENSORS, BIOSENSORS, AND INFO-TECH SENSORS AND SYSTEMS 2010
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Nanosensors, Biosensors, and Info-Tech Sensors and Systems
CY MAR 08-11, 2010
CL San Diego, CA
SP SPIE, Amer Soc Mech Engineers (ASME)
DE Army; thermal paints; thermochromic; ammunition; PDAs
ID POLYDIACETYLENE; TRANSITIONS
AB Thermochromic semiconductive polymers that change color in response to external stimuli, such as heat and radiation, can be utilized to monitor the temperature range and elapsed time profiles of stored and prepositioned munitions. These polymers are being tailored to create paints and coatings that will alert Army logistic staff of dangerous temperature exposures. Irreversible indication via color change in multiple thermal bands, 145 F - 164 F (63 degrees-73 degrees C), 165 F - 184 F (74 degrees - 84 degrees C) and over 185 F (> 85 degrees C) are possible with these thermochromic polymers. The resulting active coating can be visually inspected to determine if safe temperatures were exceeded. More detailed information, including cumulative time of exposure in certain temperature bands through changes in optical chromaticity describing the vividness or dullness of a color, can be assessed using a hand-held optical densitometer.
C1 [Zunino, James L., III] USA, Armament Res Dev & Engn Ctr, RDAR MEE M, Picatinny Arsenal, NJ 07806 USA.
RP Zunino, JL (reprint author), USA, Armament Res Dev & Engn Ctr, RDAR MEE M, Picatinny Arsenal, NJ 07806 USA.
NR 9
TC 0
Z9 0
U1 3
U2 7
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8061-3
J9 PROC SPIE
PY 2010
VL 7646
AR 76461K
DI 10.1117/12.847654
PG 10
WC Nanoscience & Nanotechnology; Remote Sensing; Optics
SC Science & Technology - Other Topics; Remote Sensing; Optics
GA BSQ85
UT WOS:000285502000040
ER
PT J
AU Alexander, D
Rummler, D
Mohtashamian, A
Robinson, G
Zahzah, M
Farr, CT
Poole, GE
AF Alexander, Dwight
Rummler, David
Mohtashamian, Aydin
Robinson, George
Zahzah, Mohamad
Farr, Christopher T.
Poole, Gregory E.
TI Hybrid Electric Drive Evaluation for CG 47 Class Guided Missile Cruisers
SO NAVAL ENGINEERS JOURNAL
LA English
DT Article
AB The hybrid electric drive (HED) topology has been studied and reported on for application to the DDG 51 class guided missile destroyers. The Navy tasked an industry team comprised of Northrop Grumman and L-3 Power Paragon to complete a sizing and concept study to apply the HED concept to the CG 47 class guided missile cruisers. This paper reports on the results of this study, including system architecture and sizing, impact on fuel use and emissions and technical hurdles. Additionally, key component developments are reported, including an electric machine topology and sizing study completed by Curtiss Wright Electro-Mechanical Division.
C1 [Zahzah, Mohamad] Calif State Univ Long Beach, Dept Elect Engn, Long Beach, CA 90840 USA.
[Mohtashamian, Aydin] USA, Washington, DC USA.
RP Alexander, D (reprint author), Northrop Grumman Marine Syst, Sunnyvale, CA USA.
NR 3
TC 2
Z9 2
U1 0
U2 0
PU AMER SOC NAVAL ENG INC
PI ALEXANDRIA
PA 1452 DUKE STREET, ALEXANDRIA, VA 22314-3458 USA
SN 0028-1425
J9 NAV ENG J
JI Nav. Eng. J.
PY 2010
VL 122
IS 2
BP 67
EP 77
DI 10.1111/j.1559-3584.2010.00269.x
PG 11
WC Engineering, Marine; Engineering, Civil; Oceanography
SC Engineering; Oceanography
GA 703SE
UT WOS:000286000800003
ER
PT J
AU Weeks, SR
Tsao, JW
AF Weeks, Sharon R.
Tsao, Jack W.
TI Incorporation of another person's limb into body image relieves phantom
limb pain: A case study
SO NEUROCASE
LA English
DT Article
DE Amputation; Phantom limb pain; Body image; Observation; Sensory mirror
neurons
ID PREMOTOR CORTEX; STUMP PAIN; AMPUTEES; PERCEPTION
AB Phantom limb phenomena are well characterized, but the underlying mechanisms remain unclear. Here we report a patient who relieves his phantom sensations and pain, experienced as itching and cramping, through scratching or massaging his prosthesis or the leg of another person. This pain relief occurs only when phantom limb sensations are present. We hypothesize that symptom relief results from incorporation of the foreign limb into the patient's body image, mediated by the sensory mirror neuron system, relieving pain by restoring concordance between sensory systems.
C1 [Weeks, Sharon R.] Walter Reed Army Med Ctr, Dept Orthoped & Rehabil, Washington, DC 20307 USA.
[Tsao, Jack W.] Uniformed Serv Univ Hlth Sci, Dept Neurol, Bethesda, MD 20814 USA.
RP Weeks, SR (reprint author), Walter Reed Army Med Ctr, Dept Orthoped & Rehabil, Bldg 2,Room 2J51,6900 Georgia Ave NW, Washington, DC 20307 USA.
EM sharon.weeks1@us.army.mil
OI Weeks, Sharon/0000-0002-9952-9136
FU Military Amputee Research Program
FX We are thankful to Mr Joseph Yetto, Ms Victoria Anderson-Barnes, and Ms
Caitlin McAuliffe for their thoughtful comments on the manuscript. The
views expressed in this article are those of the authors and do not
reflect the official policy of the Department of the Navy, Department of
the Army, Department of Defense, or the United States Government.
Support was received from the Military Amputee Research Program.
NR 24
TC 9
Z9 10
U1 1
U2 4
PU ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXFORDSHIRE, ENGLAND
SN 1355-4794
J9 NEUROCASE
JI Neurocase
PY 2010
VL 16
IS 6
BP 461
EP 465
AR PII 921668417
DI 10.1080/13554791003730592
PG 5
WC Clinical Neurology; Psychiatry; Psychology
SC Neurosciences & Neurology; Psychiatry; Psychology
GA 685LE
UT WOS:000284629400001
PM 20425663
ER
PT B
AU Bernstein, JGW
AF Bernstein, Joshua G. W.
BE LopezPoveda, EA
Palmer, AR
TI Why Do Hearing-Impaired Listeners Fail to Benefit from Masker
Fluctuations?
SO NEUROPHYSIOLOGICAL BASES OF AUDITORY PERCEPTION
LA English
DT Proceedings Paper
CT 15th International Symposium on Hearing
CY JUN 01-05, 2009
CL Salamanca, SPAIN
SP Med Elect, Hear Life
DE Speech intelligibility; Intensity importance function; Masking release;
Modulated noise; Interfering talker
ID TEMPORAL FINE-STRUCTURE; SPEECH-RECEPTION THRESHOLD; MASKING RELEASE;
INTERFERING SPEECH; MODULATED NOISE; INTELLIGIBILITY; ABILITY;
BACKGROUNDS; RECOGNITION; PERCEPTION
AB Hearing-impaired (HI) listeners do not receive as much benefit to speech intelligibility from fluctuating maskers, relative to stationary noise, as normal-hearing (NH) listeners. Investigators have focused on reduced audibility, deficits in spectral or temporal resolution, or limited cues for target-source separation as possible underlying causes of the reduced FMB. An alternative possibility is that the FMB differences may arise as a consequence of differences in the signal-to-noise ratio (SNR) at which HI and NH listeners are tested. The Extended Speech Intelligibility Index (ESII) was fit to NH data, and then used to make FMB predictions for a variety of results in the literature. Using this approach, reduced FMB for HI listeners and NH listeners presented with distorted speech was accounted for by SNR differences in many cases. HI listeners may retain more of an ability to listen in the gaps of a fluctuating masker than previously thought.
C1 Walter Reed Army Med Ctr, Army Audiol & Speech Ctr, Washington, DC 20307 USA.
RP Bernstein, JGW (reprint author), Walter Reed Army Med Ctr, Army Audiol & Speech Ctr, Washington, DC 20307 USA.
EM joshua.g.bernstein@us.army.mil
NR 25
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-5685-9
PY 2010
BP 609
EP 619
DI 10.1007/978-1-4419-5686-6_55
PG 11
WC Acoustics; Neurosciences
SC Acoustics; Neurosciences & Neurology
GA BVA26
UT WOS:000290883800055
ER
PT J
AU Moore, DF
Jaffee, MS
AF Moore, David F.
Jaffee, Michael S.
TI Military traumatic brain injury and blast
SO NEUROREHABILITATION
LA English
DT Editorial Material
AB The effects of blast on biological tissue are documented for some organ systems such as the lung. In the central nervous system (CNS) the mechanism of CNS injury following blast wave is unclear. For example is there a selective effect of blast on varying brain region or white matter bundles. The effect of blast on traumatic brain injury (TBI) has come into particular focus with the Global War on Terror and Operation Iraqi Freedom and Operation Enduring Freedom where TBI has become known as the signature injury of these conflicts. The reason for the prominence of TBI in these particular conflicts as opposed to others is unclear but may result from the increased survivability of blast due to improvements in body armor. In the current series of articles in the Journal some developments of current research concepts in relation to military traumatic brain injury (TBI) are highlighted together with many remaining unsolved questions.
C1 [Moore, David F.; Jaffee, Michael S.] Walter Reed Army Med Ctr, Def & Vet Brain Injury Ctr, Washington, DC 20309 USA.
[Moore, David F.] MIT, Inst Soldier Nanotechnol, Cambridge, MA 02139 USA.
RP Moore, DF (reprint author), Walter Reed Army Med Ctr, Def & Vet Brain Injury Ctr, Bldg 1,Room B207,6900 Georgia Ave NW, Washington, DC 20309 USA.
EM david.f.moore@amedd.army.mil
NR 5
TC 20
Z9 21
U1 0
U2 0
PU IOS PRESS
PI AMSTERDAM
PA NIEUWE HEMWEG 6B, 1013 BG AMSTERDAM, NETHERLANDS
SN 1053-8135
J9 NEUROREHABILITATION
JI Neurorehabilitation
PY 2010
VL 26
IS 3
BP 179
EP 181
DI 10.3233/NRE-2010-0553
PG 3
WC Clinical Neurology; Rehabilitation
SC Neurosciences & Neurology; Rehabilitation
GA 603OQ
UT WOS:000278218300001
PM 20448307
ER
PT J
AU Drake, AI
Meyer, KS
Cessante, LM
Cheung, CR
Cullen, MA
McDonald, EC
Holland, MC
AF Drake, Angela I.
Meyer, Kimberly S.
Cessante, Lynne M.
Cheung, Catherine R.
Cullen, Maren A.
McDonald, Eric C.
Holland, Martin C.
TI Routine TBI screening following combat deployments
SO NEUROREHABILITATION
LA English
DT Article
DE Blast; combat veteran; injury mechanism; Iraq; Afghanistan; Marines;
military; post-deployment; prevalence; screening; traumatic brain injury
ID TRAUMATIC BRAIN-INJURY; WAR; IRAQ; VETERANS; CARE
AB A precise estimate of the rates of traumatic brain injury (TBI) in returning combat troops is difficult to establish given the challenges of screening large numbers of military personnel returning from combat deployments. The Brief Traumatic Brain Injury Screen (BTBIS) was implemented in the First Marine Expeditionary Force between 2004 and 2006. Nine percent of the 7909 marines who completed the BTBIS were considered having a positive screen; that is, they endorsed at least one injury mechanism and indicated a change in mental status at the time of injury. The majority of combat-related TBI's were due to multiple injury agents with the next largest group related to blast exposure only. Most importantly, of those who screened positive for TBI 70.5% (n = 500) were first identified by the screen. Service members who endorsed items on the BTBIS were contacted for follow-up assessment of persistent symptoms related to TBI and clinical referrals were made as needed. Given the rate of positive TBI screens in this non-referred sample of military personnel returning from a combat deployment, routine TBI screening appears valuable in screening individuals who might not be identified otherwise. Furthermore, this study appears to refute the contention that routine TBI screening will result in an over-identification of TBI in this population.
C1 [Drake, Angela I.; Meyer, Kimberly S.] Walter Reed Army Med Ctr, Def & Vet Brain Injury Ctr, Washington, DC 20307 USA.
[Cessante, Lynne M.; Cheung, Catherine R.; Cullen, Maren A.] USN, Def & Vet Brain Injury Ctr, Med Ctr, San Diego, CA 92152 USA.
RP Drake, AI (reprint author), Walter Reed Army Med Ctr, Def & Vet Brain Injury Ctr, Bldg 1,Room B209,6900 Georgia Ave NW, Washington, DC 20307 USA.
EM adrake@dvbic.org
NR 17
TC 14
Z9 16
U1 0
U2 2
PU IOS PRESS
PI AMSTERDAM
PA NIEUWE HEMWEG 6B, 1013 BG AMSTERDAM, NETHERLANDS
SN 1053-8135
J9 NEUROREHABILITATION
JI Neurorehabilitation
PY 2010
VL 26
IS 3
BP 183
EP 189
DI 10.3233/NRE-2010-0554
PG 7
WC Clinical Neurology; Rehabilitation
SC Neurosciences & Neurology; Rehabilitation
GA 603OQ
UT WOS:000278218300002
PM 20448308
ER
PT J
AU Cooper, DB
Mercado-Couch, JM
Critchfield, E
Kennedy, J
Vanderploeg, RD
DeVillibis, C
Gaylord, KM
AF Cooper, Douglas B.
Mercado-Couch, Janyna M.
Critchfield, Edan
Kennedy, Jan
Vanderploeg, Rodney D.
DeVillibis, Carita
Gaylord, Kathryn M.
TI Factors influencing cognitive functioning following mild traumatic brain
injury in OIF/OEF burn patients
SO NEUROREHABILITATION
LA English
DT Article
DE Mild traumatic brain injury; blast injury; cognitive dysfunction
ID POSTTRAUMATIC-STRESS-DISORDER; NEUROPSYCHOLOGICAL STATUS RBANS;
REPEATABLE BATTERY; POSTCONCUSSIVE SYMPTOMS; BASE RATES; IRAQ;
AFGHANISTAN; MECHANISMS; DIAGNOSIS; VALIDITY
AB Objective: To examine the relationship between mild traumatic brain injury (mTBI), psychiatric conditions, pain medications, and injury severity on cognitive functioning in service members admitted to a burn unit. We hypothesize that psychiatric co-morbidity and pain medications will have a stronger relationship with cognitive dysfunction than mTBI diagnosis in this population.
Method: Retrospective review of clinical evaluations (n = 194) completed between September 2005-October 2007 on service members with burn injuries secondary to explosive munitions. Evaluations were completed during the acute stage of recovery (mean = 7.87 weeks). mTBI diagnosis (n = 50) was made through a clinical interview using ACRM criteria [1]. Exclusion criteria included duration of posttraumatic amnesia > 24 hours (n = 10); and inability to complete neurocognitive measures due to severe bimanual burns and/or amputations (n = 17). Cognitive functioning was evaluated using the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS).
Results: Subjects who sustained mTBI demonstrated significantly greater difficulty on the RBANS visuospatial and attention/processing speed indices. A hierarchical linear regression, using mTBI diagnosis, psychiatric diagnosis, time since injury, presence of pain medications, and measures of trauma severity as predictive factors, found that mTBI diagnosis had a significant, but small unique effect on cognitive functioning. Contrary to our hypothesis, psychiatric co-morbidity was not shown to have a significant effect on this population of acutely injured service members.
Conclusions: While the relationship between severe TBI and cognitive functioning is well established, the relationship between mTBI and its effects on cognitive and behavioral abilities is less clear. The current study demonstrates that mTBI and analgesic medications have a small effect neurocognitive functioning in this population. Continued examination of this relationship is warranted.
C1 [Cooper, Douglas B.] Brooke Army Med Ctr, Dept Orthoped, Traumat Brain Injury Serv, Ft Sam Houston, TX 78234 USA.
[Cooper, Douglas B.] Brooke Army Med Ctr, Dept Rehabil, Traumat Brain Injury Serv, Ft Sam Houston, TX 78234 USA.
[Mercado-Couch, Janyna M.; Critchfield, Edan] Brooke Army Med Ctr, Dept Behav Med, Ft Sam Houston, TX 78234 USA.
[Kennedy, Jan; Vanderploeg, Rodney D.] DVBIC, Washington, DC USA.
[Vanderploeg, Rodney D.] James A Haley Vet Adm Med Ctr, Tampa, FL 33612 USA.
[Vanderploeg, Rodney D.] Univ S Florida, Tampa, FL USA.
[DeVillibis, Carita] USA, Res Lab, Adelphi, MD USA.
[Gaylord, Kathryn M.] US Inst Surg Res USAISR, Ft Sam Houston, TX USA.
RP Cooper, DB (reprint author), MCHE DOR TBI, Dept Orthoped & Rehabil, Traumat Brain Injury Serv, 3851 Roger Brooke Dr, Ft Sam Houston, TX 78234 USA.
EM douglas.cooper2@amedd.army.mil
FU NIA NIH HHS [AG P30-12300-10]
NR 28
TC 11
Z9 11
U1 2
U2 6
PU IOS PRESS
PI AMSTERDAM
PA NIEUWE HEMWEG 6B, 1013 BG AMSTERDAM, NETHERLANDS
SN 1053-8135
J9 NEUROREHABILITATION
JI Neurorehabilitation
PY 2010
VL 26
IS 3
BP 233
EP 238
DI 10.3233/NRE-2010-0559
PG 6
WC Clinical Neurology; Rehabilitation
SC Neurosciences & Neurology; Rehabilitation
GA 603OQ
UT WOS:000278218300007
PM 20448313
ER
PT J
AU Martin, EM
French, L
Janos, A
AF Martin, Elisabeth Moy
French, Louis
Janos, Alicia
TI Home/community monitoring using telephonic follow-up
SO NEUROREHABILITATION
LA English
DT Article
DE Telephonic follow-up; traumatic brain injury
ID TRAUMATIC BRAIN-INJURY; POSTTRAUMATIC-STRESS-DISORDER; BLAST; SYMPTOMS;
REHABILITATION; WAR; MECHANISMS; SOLDIERS; IMPACT; PAIN
AB Service members who have had a traumatic brain injury (TBI) in a war theatre [ Operation Enduring Freedom (OEF) and Operation Iraqi Freedom (OIF)] may have associated injuries far different and/or more complex (i.e., polytrauma) than injuries obtained outside the theatre of operation. This article expands on what has been learned from monitoring patients injured during peacetime to the newly injured war veterans being monitored in the home setting via routine telephonic follow-up. As Tanielian et al. state TBI, post traumatic stress disorder (PTSD) and major depression may occur during and following deployment/s which then pose a significant health risk to these veterans. This is particularly important as veterans of these two conflicts may incur these "invisible wounds of war." Thus, safe and effective monitoring of these veterans by nurses/case managers in the home/community setting becomes important in the recovery process.
C1 [Martin, Elisabeth Moy; French, Louis; Janos, Alicia] Walter Reed Army Med Ctr, DVBIC, Washington, DC 20307 USA.
RP Martin, EM (reprint author), 6709 Tomlinson Terrace, Cabin John, MD 20818 USA.
EM Elisabeth.martin@amedd.army.mil
NR 22
TC 1
Z9 1
U1 0
U2 1
PU IOS PRESS
PI AMSTERDAM
PA NIEUWE HEMWEG 6B, 1013 BG AMSTERDAM, NETHERLANDS
SN 1053-8135
J9 NEUROREHABILITATION
JI Neurorehabilitation
PY 2010
VL 26
IS 3
BP 279
EP 283
DI 10.3233/NRE-2010-0563
PG 5
WC Clinical Neurology; Rehabilitation
SC Neurosciences & Neurology; Rehabilitation
GA 603OQ
UT WOS:000278218300011
PM 20448317
ER
PT J
AU Doncevic, S
Boerman, HL
AF Doncevic, Selina
Boerman, Heidi L.
TI Continuum of care: Military health care providers and the traumatic
brain injured service members
SO NEUROREHABILITATION
LA English
DT Article
ID POSTTRAUMATIC-STRESS-DISORDER; IRAQ; METAANALYSIS; AFGHANISTAN;
DEPLOYMENT; PERSONNEL; ADULTS; RISK; WAR
AB This article will address and describe the military continuum of care and its implications for the health care providers intimately involved in the treatment of service members who sustain traumatic brain injuries (TBI). Clinical Practice Guidelines have been created and distributed for treatment of TBI sustained by service members in both the deployed setting and in the continental United States (CONUS). The military has established specific levels of care each with specific purpose in the treatment continuum that extends from the battlefield to the most advanced military treatment facility (MTF). The health care providers who care for this particular patient population can also face unique opportunities, challenges and rewards.
C1 [Doncevic, Selina; Boerman, Heidi L.] Walter Reed Army Med Ctr, Def & Vet Brain Injury Ctr, Washington, DC 20012 USA.
RP Doncevic, S (reprint author), Walter Reed Army Med Ctr, Def & Vet Brain Injury Ctr, POB 59181, Washington, DC 20012 USA.
EM selina.doncevic@us.army.mil
NR 20
TC 2
Z9 2
U1 0
U2 0
PU IOS PRESS
PI AMSTERDAM
PA NIEUWE HEMWEG 6B, 1013 BG AMSTERDAM, NETHERLANDS
SN 1053-8135
J9 NEUROREHABILITATION
JI Neurorehabilitation
PY 2010
VL 26
IS 3
BP 285
EP 290
DI 10.3233/NRE-2010-0564
PG 6
WC Clinical Neurology; Rehabilitation
SC Neurosciences & Neurology; Rehabilitation
GA 603OQ
UT WOS:000278218300012
PM 20448318
ER
PT J
AU Bell, RS
Vo, AH
Roberts, R
Wanebo, J
Armonda, RA
AF Bell, Randy S.
Vo, Alexander H.
Roberts, Ryan
Wanebo, John
Armonda, Rocco A.
TI Wartime Traumatic Aneurysms: Acute Presentation, Diagnosis, and
Multimodal Treatment of 64 Craniocervical Arterial Injuries
SO NEUROSURGERY
LA English
DT Article
DE Endovascular occlusion; Pseudoaneurysm; Traumatic intracranial
aneurysms; Vascular complications of traumatic brain injury
ID INTERNAL CAROTID-ARTERY; INFERIOR CEREBELLAR ARTERY; MISSILE HEAD
WOUNDS; INTRACRANIAL ANEURYSMS; INTRACAVERNOUS ANEURYSM; VERTEBRAL
ARTERY; CEREBRAL-ARTERIES; MANAGEMENT; EPISTAXIS; RUPTURE
AB OBJECTIVE: Operation Iraqi Freedom has resulted in a significant number of closed and penetrating head injuries, and a consequence of both has been the accompanying neurovascular injuries. Here we review the largest reported population of patients with traumatic neurovascular disease and offer our experience with both endovascular and surgical management.
METHODS: A retrospective analysis of all military casualties returning to the Walter Reed Army Medical Center and the National Naval Medical Center, Bethesda, Maryland, from April 2003 until April 2008 was performed. All patients undergoing diagnostic cerebral angiography during their inpatient stay were included in the study.
RESULTS: A total of 513 war trauma-related consults were performed from April 2003 to April 2008, resulting in the evaluation of 408 patients with closed and penetrating head injuries. In this population, 279 angiographic studies were performed in 187 patients (25 closed craniocervical injuries, 162 penetrating craniocervical injuries), resulting in the detection of 64 vascular injuries in 48 patients (26.2% of those studied, 34% prevalence). Vascular injuries were characterized by traumatic intracranial aneurysms (TICAS) (n = 31), traumatic extracalvarial aneurysms (TECAs) (n = 19), arterial dissections (n = 11), and arteriovenous fistulae (n = 3). The average TICA size on admission was 4.1 mm, with an observed increase in aneurysm size in 11 cases. In the TICA/TECA group, 24 aneurysms in 23 patients were treated endovascularly with either coiling or stent-assisted coiling, resulting in preservation of the parent artery in 12 of 24 vessels (50%). The injuries in 3 patients in this group progressed despite endovascular treatment and required definitive clip exclusion. Thirteen additional aneurysms in 8 patients were treated surgically, resulting in parent artery preservation in 4 cases (30.8%). Eleven of the 13 remaining TICAs/TECAs resolved spontaneously without treatment. A total of 6 aneurysm ruptures (average size, 8.25 mm) occurred, resulting in 3 deaths. Four of 6 ruptures occurred in TICAs in which the interval size increase was noted angiographically.
CONCLUSION: The management of traumatic vascular injury has evolved with technological advancement and the willingness of the neurosurgeon to intervene. Although open surgical intervention remains a viable solution, endovascular options are available and safe and can effectively temporize a patient while acute sequelae of serious head injury resolve.
C1 [Bell, Randy S.; Roberts, Ryan; Armonda, Rocco A.] Walter Reed Army Med Ctr, Washington, DC 20307 USA.
[Bell, Randy S.; Roberts, Ryan; Wanebo, John; Armonda, Rocco A.] Natl Naval Med Ctr, Bethesda, MD USA.
[Vo, Alexander H.] Univ Texas Galveston, Med Branch, Galveston, TX 77550 USA.
RP Bell, RS (reprint author), 8901 Wisconsin Ave, Bethesda, MD 20889 USA.
EM Randy.bell@amedd.army.mil
NR 57
TC 30
Z9 33
U1 0
U2 3
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0148-396X
J9 NEUROSURGERY
JI Neurosurgery
PD JAN
PY 2010
VL 66
IS 1
BP 66
EP 79
DI 10.1227/01.NEU.0000361285.50218.A8
PG 14
WC Clinical Neurology; Surgery
SC Neurosciences & Neurology; Surgery
GA 535KP
UT WOS:000272967400013
PM 20023539
ER
PT J
AU Mamczarz, J
Pereira, EFR
Aracava, Y
Adler, M
Albuquerque, EX
AF Mamczarz, Jacek
Pereira, Edna F. R.
Aracava, Yasco
Adler, Michael
Albuquerque, Edson X.
TI An acute exposure to a sub-lethal dose of soman triggers anxiety-related
behavior in guinea pigs: Interactions with acute restraint
SO NEUROTOXICOLOGY
LA English
DT Article
DE Anxiety; Locomotion; Open field; Elevated plus maze; Organophosphorus
compounds
ID SUBWAY SARIN ATTACK; POSTTRAUMATIC-STRESS-DISORDER; LONG-TERM
CONSEQUENCES; ELEVATED PLUS-MAZE; NOVELTY STRESS; OPEN-FIELD; RATS;
TOXICITY; RELEASE; CORTEX
AB In this study, we tested the hypothesis that a single exposure of guinea pigs to sub-lethal doses of soman triggers anxiety-related behavior that is modifiable by acute stress. Prepubertal male guinea pigs were subjected to one of the following treatments: (i) saline (0.5 ml/kg, sc), (ii) soman (0.6x or 0.8 x LD50, sc), (iii) saline followed 30 min later by 2-h restraint, or (iv) soman followed 30 min later by 2-h restraint. Behavior of the animals was examined 2 and 3 months later in a large open field and in the elevated plus maze. Animals that had been exposed to restraint stress alone or soman alone showed decreased exploratory activity when tested in the open field with bare floor at light intensity of 20-30 lx. Total distance traveled and distance traveled in the center of the field were shorter for animals that were exposed to either restraint stress or soman than for saline-injected animals. In addition, animals challenged with soman or restraint stress remained immobile for a longer time in the open field than did saline-injected guinea pigs. Performance in the elevated plus maze test revealed that exposure of guinea pigs to soman or restraint Stress decreased their number of entries and the time spent in the open arms of the maze (measures of anxiety) and reduced their overall locomotor activity. Soman exposure and restraint stress cancelled out each other's effect on locomotion, while only attenuating one another's effect on anxiety-related behavior. It is concluded that a single exposure to sub-lethal doses of soman triggers long-lasting anxiogenesis and decreased locomotor activity and that acute restraint stress modifies the magnitude of these effects. (C) 2009 Elsevier Inc. All rights reserved.
C1 [Mamczarz, Jacek; Pereira, Edna F. R.; Aracava, Yasco; Albuquerque, Edson X.] Univ Maryland, Dept Pharmacol & Expt Therapeut, Sch Med, Baltimore, MD 21201 USA.
[Adler, Michael] USA, Med Res Inst Chem Def, Neurobehav & Toxicol Branch, Aberdeen Proving Ground, MD 21010 USA.
RP Albuquerque, EX (reprint author), Univ Maryland, Dept Pharmacol & Expt Therapeut, Sch Med, 655 W Baltimore St, Baltimore, MD 21201 USA.
EM ealbuque@umaryland.edu
FU National Institutes of Health [UO1NS059344]
FX This work was funded by the National Institutes of Health CounterACT
Program through the National Institute of Neurological Disorders and
Stroke (award #UO1NS059344). Its contents are solely the responsibility
of the authors and do not necessarily reflect the official views of the
federal government.
NR 39
TC 8
Z9 9
U1 1
U2 4
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0161-813X
J9 NEUROTOXICOLOGY
JI Neurotoxicology
PD JAN
PY 2010
VL 31
IS 1
BP 77
EP 84
DI 10.1016/j.neuro.2009.10.012
PG 8
WC Neurosciences; Pharmacology & Pharmacy; Toxicology
SC Neurosciences & Neurology; Pharmacology & Pharmacy; Toxicology
GA 556SE
UT WOS:000274611000008
PM 19883683
ER
PT B
AU Viswanath, DS
Reinig, M
Ghosh, TK
Boddu, VM
AF Viswanath, Dabir S.
Reinig, Mike
Ghosh, Tushar K.
Boddu, Veera M.
BE Selesovsky, J
Pachman, J
Matyas, R
TI Vapor Pressure of Nitro Compounds
SO NEW TRENDS IN RESEARCH OF ENERGETIC MATERIALS, PTS I & II, 13TH SEMINAR
LA English
DT Proceedings Paper
CT 13th Seminar on New Trends in Research of Energetic Materials
CY APR 21-23, 2010
CL Univ Pardubice, Pardubiece, CZECH REPUBLIC
SP US Army Int Technol Ctr, US Off Naval Res Global, USAF, European Off Aerosp Res & Dev, Austin Detonator, Ezplosia, Indet Safety Syst, STV Grp, Policske strojirny Ltd, OZM Res, BORGATA
HO Univ Pardubice
DE vapour pressure; detection
AB Vapor pressure is an important thermodynamic property useful in several areas of science and technology. The detection of explosives such as RDX, CL-20, etc require very sensitive sensors, and such sensors need very accurate vapor pressure data. In most cases the very low vapor pressure of these compounds makes it very difficult to measure the data accurately. Limited amount of data exists in the literature for some substance such as RDX but the data differ from author to author. Even in some cases such as TATP which has higher vapor pressures, the data even from a single source varies between multiple measurements. We have undertaken to measure the vapor pressure of some explosives and also correlating the data for predictive purposes.
C1 [Viswanath, Dabir S.; Reinig, Mike; Ghosh, Tushar K.] Univ Missouri, Columbia, MO 65211 USA.
[Boddu, Veera M.] US Army, Erdc, Champaign, IL USA.
RP Viswanath, DS (reprint author), Univ Missouri, Columbia, MO 65211 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU UNIV PARDUBICE
PI PARDUBICE
PA STUDENTSKA 95, PARDUBICE 532 10, CZECH REPUBLIC
BN 978-80-7395-249-5
PY 2010
BP 306
EP 309
PG 4
WC Engineering, Chemical; Materials Science, Multidisciplinary
SC Engineering; Materials Science
GA BG9KA
UT WOS:000393356400031
ER
PT J
AU Britzke, ER
Sewell, P
Hohmann, MG
Smith, R
Darling, SR
AF Britzke, Eric R.
Sewell, Price
Hohmann, Matthew G.
Smith, Ryan
Darling, Scott R.
TI Use of Temperature-sensitive Transmitters to Monitor the Temperature
Profiles of Hibernating Bats Affected with White-Nose Syndrome
SO NORTHEASTERN NATURALIST
LA English
DT Article
AB In temperate ecosystems, hibernation allows bats to survive long periods of limited prey and water availability during colder months. Despite the extended amount of time some bats spend in hibernation, researchers have only recently been able to study the hibernation ecology of bats under natural conditions. With the emergence of white-nose syndrome (WNS), a mysterious disease presently killing large numbers of bats during the hibernation period in the northeastern United States, expanding our knowledge of hibernation ecology and natural history has become more crucial. To collect such data, we used temperature-sensitive radio transmitters and data loggers to monitor the skin temperatures (T-sk) of 6 bats (5 Myotis lucifugus [Little Brown Bat], and 1 Myotis septentrionalis [Northern Long-eared Bat]) hibernating in Mount Aeolus Cave, VT in late winter 2008. We recorded T-sk every 14 minutes for the life of the transmitters. We were able to monitor T-sk from near ambient temperatures to above 30 degrees C. Arousals occurred immediately before the signals were lost and at a time of increased numbers of bats observed on the landscape, thereby suggesting the emergence (and subsequent death) of bats. Our observations provide first data on the hibernating ecology of WNS-affected bats under natural conditions.
C1 [Britzke, Eric R.] USA, Corps Engineers, Engn Res & Dev Ctr, Vicksburg, MS 39180 USA.
[Sewell, Price] Copperhead Environm Consulting, Paint Lick, KY 40461 USA.
[Hohmann, Matthew G.] USA, Corps Engineers, Engn Res & Dev Ctr, Construct Engn Res Lab, Champaign, IL 61826 USA.
[Smith, Ryan; Darling, Scott R.] Vermont Fish & Wildlife Dept, Rutland, VT 05701 USA.
RP Britzke, ER (reprint author), USA, Corps Engineers, Engn Res & Dev Ctr, 3909 Halls Ferry Rd, Vicksburg, MS 39180 USA.
EM Eric.R.Britzke@usace.army.mil
NR 24
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Z9 4
U1 7
U2 31
PU HUMBOLDT FIELD RESEARCH INST
PI STEUBEN
PA PO BOX 9, STEUBEN, ME 04680-0009 USA
SN 1092-6194
EI 1938-5307
J9 NORTHEAST NAT
JI Northeast. Nat
PY 2010
VL 17
IS 2
BP 239
EP 246
DI 10.1656/045.017.0207
PG 8
WC Biodiversity Conservation; Ecology
SC Biodiversity & Conservation; Environmental Sciences & Ecology
GA V22RH
UT WOS:000208291800007
ER
PT J
AU Bingham, M
Ashley, J
De Jong, M
Swift, C
AF Bingham, Mona
Ashley, Jeffrey
De Jong, Marla
Swift, Caren
TI Implementing a Unit-Level Intervention to Reduce the Probability of
Ventilator-Associated Pneumonia
SO NURSING RESEARCH
LA English
DT Article
DE compliance; evidence-based practice; infection control;
ventilator-associated or ventilator-acquired pneumonia
ID INTENSIVE-CARE-UNIT; RECEIVING MECHANICAL VENTILATION; NOSOCOMIAL
PNEUMONIA; DENTAL PLAQUE; COLONIZATION; INFECTIONS; PREVENTION;
GUIDELINE
AB Background. Ventilator-associated pneumonia (VAP) is the second most common hospital-acquired infection and is associated with high morbidity and mortality rates for mechanically ventilated patients in the intensive care unit. Routine nursing interventions have been shown to reduce VAP rates.
Objectives: The purpose of this study was to evaluate the effectiveness of a unit-specific education intervention that emphasized hand hygiene, head-of-the-bed elevation, and oral care. The goals were to improve staff compliance with hand washing, head-of-the-bed elevation, and oral care; to decrease VAP rates, and to decrease number of ventilator days.
Methods: Two-hour observations were conducted on a convenience sample of 100 ventilated patients not diagnosed with VAP and the clinical staff that interacted with them. Instrumentation included a compliance checklist, a demographic patient survey, and the Acute Physiology and Chronic Health Evaluation AE IV (R) tool. Unit-specific educational interventions were designed and implemented on each participating unit.
Results: The VAP and the ventilator day rates did not improve significantly. There were no significant changes in clinician adherence to hand hygiene, provision of oral care, or patient positioning.
Discussion: Despite implementation of both structured and creative education, team-based approach, and frequent staff reminders, patient outcomes and staff compliance did not improve significantly. Unit-based education interventions may not be the best strategy to facilitate change. Organizations with frequent changes in personnel and leadership may not have the unit-level infrastructure necessary to attain and sustain change.
C1 [Bingham, Mona; Ashley, Jeffrey] USA, Ft Sam Houston, TX 78234 USA.
[Bingham, Mona] Brooke Army Med Ctr, Nursing Res Serv, Ft Sam Houston, TX 78234 USA.
[De Jong, Marla] Uniformed Serv Univ Hlth Sci, Triserv Nursing Res Program, Bethesda, MD 20814 USA.
[Ashley, Jeffrey] Brooke Army Med Ctr, Crit Care Nursing Serv, Ft Sam Houston, TX 78234 USA.
[De Jong, Marla] USAF, Wright Patterson AFB, OH 45433 USA.
RP Bingham, M (reprint author), USA, Ft Sam Houston, TX 78234 USA.
EM Mona.bingham@us.army.mil
FU TriService Nursing Research Program [N03-P18]
FX This project was funded by an award from the TriService Nursing Research
Program, grant no. N03-P18 by Principal Investigator, CAPT Patricia
Kelley. The Uniformed Services University of the Health Sciences
(USUHS), 4301 Jones Bridge Rd., Bethesda, MD 20814-4799, is the awarding
and administering office.
NR 34
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U1 0
U2 11
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0029-6562
J9 NURS RES
JI Nurs. Res.
PD JAN-FEB
PY 2010
VL 59
IS 1
BP S40
EP S47
PG 8
WC Nursing
SC Nursing
GA 538VP
UT WOS:000273212600007
PM 20010277
ER
PT J
AU Kenny, DJ
Goodman, P
AF Kenny, Deborah J.
Goodman, Petra
TI Care of the Patient With Enteral Tube Feeding An Evidence-Based Practice
Protocol
SO NURSING RESEARCH
LA English
DT Article
DE enteral feeding; practice protocol; quality assessment
ID CRITICALLY-ILL PATIENTS; CONTROLLED-TRIALS; RESIDUAL VOLUME; ASPIRATION;
NUTRITION; COMPLICATIONS; PLACEMENT; RISK; PH
AB Background: Care of patients with enteral feeding tubes often is based on tradition and textbook guidance rather than best evidence. Care practices can vary widely both between and within institutions, and this was the case at a northeastern military medical center that served as the site for this evidence-based protocol development and implementation project. Objectives: The purpose of this study was to describe the development and implementation of an evidence-based clinical protocol for care of patients with enteral feeding tubes.
Methods: This was an evidence-based implementation project with pretest-posttest measures. Protocol data collection occurred both before and after implementation of the protocol. Data collection tools were based on the literature review and included three domains: (a) documentation of patient procedures, (b) nursing knowledge of each of the specific procedures, and (c) environment of care. Descriptive statistics and data were analyzed using independent samples t tests.
Results: Overall staff knowledge of enteral feedings and methods used to unclog both large- and small-bore feeding tubes differed significantly before and after implementation (p < .05). Staff knowledge regarding the danger of using blue dye in feeding solution was significant (p < .001). There was improvement also in administration of medications separately rather than mixed together and in head of bed elevation of patients with feeding tubes. There was a 10% improvement in documentation of patient family education and a 15% improvement in recording fluid flushes during medication administration. After implementation, environment of care data collection showed 100% of patients with head of bed elevated and with functioning suction available, an improvement over levels before implementation.
Discussion: Care must be taken in the interpretation of these findings because it was generally not the same nurses who answered both surveys. High staff turnover within this military hospital also affected sustainment of the protocol implementation. Maintenance activities must be constant and visible within the organization. A champion for evidence-based practice greatly enhances uptake and maintenance of nursing practice change.
C1 [Kenny, Deborah J.] Uniformed Serv Univ Hlth Sci, TriServ Nursing Res Program, Bethesda, MD 20814 USA.
[Goodman, Petra] Walter Reed Army Med Ctr, Nursing Res Serv, Washington, DC 20307 USA.
RP Kenny, DJ (reprint author), 350 S Clinton St Apt 1D, Denver, CO 80247 USA.
EM deb.kenny@us.army.mil
FU Uniformed Services University of the Health Sciences [MDA905-02-1-TS16,
N02-P18]
FX This project was sponsored by the TriService Nursing Research Program,
Uniformed Services University of the Health Sciences; however, the
information or content and conclusions do not necessarily represent the
official position or policy of, nor should any official endorsement be
inferred by, the TriService Nursing Research Program, Uniformed Services
University of the Health Sciences, the Department of Defense, or the
U.S. Government.
NR 44
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U1 0
U2 11
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0029-6562
J9 NURS RES
JI Nurs. Res.
PD JAN-FEB
PY 2010
VL 59
IS 1
BP S22
EP S31
PG 10
WC Nursing
SC Nursing
GA 538VP
UT WOS:000273212600005
PM 20010275
ER
PT J
AU Yackel, EE
McKennan, MS
Fox-Deise, A
AF Yackel, Edward E.
McKennan, Madelyn S.
Fox-Deise, Adrianna
TI A Nurse-Facilitated Depression Screening Program in an Army Primary Care
Clinic An Evidence-Based Project
SO NURSING RESEARCH
LA English
DT Article
DE decision algorithm; depression screening; evidence-based practice;
military primary care clinic
ID DISEASE MANAGEMENT PROGRAMS; SUICIDAL IDEATION; HEALTH; VALIDITY; RISK;
METAANALYSIS; DISORDERS; RATIONALE; PROVIDERS; MILITARY
AB Background: Depression, sometimes with suicidal manifestations, is a medical condition commonly seen in primary care clinics. Routine screening for depression and suicidal ideation is recommended of all adult patients in the primary care setting because it offers depressed patients a greater chance of recovery and response to treatment, yet such screening often is overlooked or omitted.
Objective: The purpose of this study was to develop, to implement, and to test the efficacy of a systematic depression screening process to increase the identification of depression in family members of active duty soldiers older than 18 years at a military family practice clinic located on an Army infantry post in the Pacific.
Methods: The Iowa Model of Evidence-Based Practice to Promote Quality Care was used to develop a practice guideline incorporating a decision algorithm for nurses to screen for depression. A pilot project to institute this change in practice was conducted, and outcomes were measured.
Results: Before implementation, approximately 100 patients were diagnosed with depression in each of the 3 months preceding the practice change. Approximately 130 patients a month were assigned a 311.0 Code 3 months after the practice change, and 140 patients per month received screenings and were assigned the correct International Classification of Diseases, Ninth Revision Code 311.0 at 1 year. The improved screening and coding for depression and suicidality added approximately 3 minutes to the patient screening process. The education of staff in the process of screening for depression and correct coding coupled with monitoring and staff feedback improved compliance with the identification and the documentation of patients with depression. Nurses were more likely than primary care providers to agree strongly that screening for depression enhances quality of care.
Discussion: Data gathered during this project support the integration of military and civilian nurse-facilitated screening for depression in the military primary care setting. The decision algorithm should be adapted and tested in other primary care environments.
C1 [Yackel, Edward E.] US Army Nurse Corps, McDonald Army Hlth Ctr, Ft Eustis, VA 23604 USA.
[McKennan, Madelyn S.] US Army Nurse Corps, Schofield Barracks Army Hlth Clin, Honolulu, HI USA.
[Fox-Deise, Adrianna] Univ Hawaii Manoa, Sch Nursing & Dent Hyg, Honolulu, HI 96822 USA.
RP Yackel, EE (reprint author), US Army Nurse Corps, McDonald Army Hlth Ctr, Ft Eustis, VA 23604 USA.
EM Ed.yackel@us.army.mil
FU Uniformed Services University of the Health Sciences [N03-P18]
FX This project was sponsored by the TriService Nursing Research Program,
Uniformed Services University of the Health Sciences; however, the
information or content and conclusions do not necessarily represent the
official position or policy of, nor should any official endorsement be
inferred by, the TriService Nursing Research Program, Uniformed Services
University of the Health Sciences, the Department of Defense, or the
U.S. Government.
NR 28
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U1 0
U2 3
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0029-6562
J9 NURS RES
JI Nurs. Res.
PD JAN-FEB
PY 2010
VL 59
IS 1
BP S58
EP S65
PG 8
WC Nursing
SC Nursing
GA 538VP
UT WOS:000273212600009
PM 20010279
ER
PT J
AU Demirbilek, Z
AF Demirbilek, Zeki
TI Hurricane Katrina and Ocean Engineering lessons learned
SO OCEAN ENGINEERING
LA English
DT Editorial Material
C1 USA, Engineer R&D Ctr, Coastal & Hydraul Lab, Vicksburg, MS 39180 USA.
RP Demirbilek, Z (reprint author), USA, Engineer R&D Ctr, Coastal & Hydraul Lab, 3909 Halls Ferry Rd, Vicksburg, MS 39180 USA.
EM zeki.demirbilek@usace.army.mil
NR 0
TC 2
Z9 3
U1 0
U2 2
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0029-8018
J9 OCEAN ENG
JI Ocean Eng.
PD JAN
PY 2010
VL 37
IS 1
SI SI
BP 1
EP 3
DI 10.1016/j.oceaneng.2009.12.002
PG 3
WC Engineering, Marine; Engineering, Civil; Engineering, Ocean;
Oceanography
SC Engineering; Oceanography
GA 556QS
UT WOS:000274606800001
ER
PT J
AU Levinson, DH
Vickery, PJ
Resio, DT
AF Levinson, D. H.
Vickery, P. J.
Resio, D. T.
TI A review of the climatological characteristics of landfalling Gulf
hurricanes for wind, wave, and surge hazard estimation
SO OCEAN ENGINEERING
LA English
DT Review
DE Hurricane; Katrina; Ocean response models; Hurricane winds; Hazard and
risks; Hurricane central pressures
ID TROPICAL CYCLONE INTENSITY; HIGH SEA WINDS; GLOBAL CLIMATOLOGY;
NORTH-ATLANTIC; UNITED-STATES; PARAMETRIC REPRESENTATION; SURFACE WINDS;
FIELD MODEL; PRESSURE; SPACE
AB The climatological characteristics of landfalling Gulf of Mexico hurricanes are presented, focusing on the basic parameters needed for accurately determining the structure and intensity of hurricanes for ocean response models. These include the maximum sustained wind, radius of maximum winds, the Holland-B parameter, the peripheral or far-field pressure, the surface roughness and coefficient of drag, and the central pressure for historical hurricanes in the Gulf.
Despite evidence of a slight increase in the annual number of named storms over the past 50 years, presently there is no statistically significant trend in tropical storms, hurricanes, or major hurricanes in the Gulf of Mexico. In addition, the long-term variability of tropical cyclones in the Gulf reflects the observed variability in the Atlantic basin as a whole. Analyses of hurricane winds from multiple sources suggest the presence of a bias toward overestimating the strength of winds in the HURDAT dataset from 7% to 15%. Results presented comparing HURDAT with other sources also show an overestimation of intensity at landfall, with an estimated bias of similar to 10%.
Finally, a review of recent studies has shown that hurricane frequencies and intensities appear to vary on a much more localized scale than previously believed. This exacerbates the sampling problem for accurate characterization of hurricane parameters for design and operational applications. Published by Elsevier Ltd.
C1 [Levinson, D. H.] NOAA, NESDIS, Natl Climat Data Ctr, Asheville, NC USA.
[Vickery, P. J.] Appl Res Associates Inc, Raleigh, NC USA.
[Resio, D. T.] USACE, ERDC, Coastal Hydraul Lab, Vicksburg, MS USA.
RP Levinson, DH (reprint author), NOAA, NESDIS, Natl Climat Data Ctr, Asheville, NC USA.
EM David.Levinson@noaa.gov
RI Vickery, Peter/D-2708-2012
NR 71
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U1 1
U2 14
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0029-8018
J9 OCEAN ENG
JI Ocean Eng.
PD JAN
PY 2010
VL 37
IS 1
SI SI
BP 13
EP 25
DI 10.1016/j.oceaneng.2009.07.014
PG 13
WC Engineering, Marine; Engineering, Civil; Engineering, Ocean;
Oceanography
SC Engineering; Oceanography
GA 556QS
UT WOS:000274606800003
ER
PT J
AU Smith, JM
Cialone, MA
Wamsley, TV
McAlpin, TO
AF Smith, Jane McKee
Cialone, Mary A.
Wamsley, Ty V.
McAlpin, Tate O.
TI Potential impact of sea level rise on coastal surges in southeast
Louisiana
SO OCEAN ENGINEERING
LA English
DT Article
DE Hurricane; Katrina; Sea level rise; Southeast Louisiana; Storm surge;
Waves; ADCIRC; STWAVE; IPET
ID HURRICANE STORM-SURGE; MISSISSIPPI DELTA; GULF
AB Potential impacts of 0.5 and 1.0m of relative sea level rise (RSLR) on hurricane surge and waves in southeast Louisiana are investigated using the numerical storm surge model ADCIRC and the nearshore spectral wave model STWAVE. The models were applied for six hypothetic hurricanes that produce approximately 100yr water levels in southeastern Louisiana. In areas of maximum surge, the impact of RSLR on surge was generally linear (equal to the RSLR). In wetland or wetland-fronted areas of moderate peak surges (2-3 m), the surge levels were increased by as much as 1-3 m (in addition to the RSLR). The surge increase is as much as double and triple the RSLR over broad areas and as much as five times the RSLR in isolated areas. Waves increase significantly in shallow areas due to the combined increases in water depth due to RSLR and surge increases. Maximum increases in wave height for the modeled storms were 1-1.5 m. Surge propagation over broad, shallow, wetland areas is highly sensitive to RSLR. Wave heights also generally increased for all RSLR cases. These increases were significant (0.5-1.5 m for 1 m RSLR), but less dramatic than the surge increases. Published by Elsevier Ltd.
C1 [Smith, Jane McKee; Cialone, Mary A.; Wamsley, Ty V.; McAlpin, Tate O.] USA, Egineer Res & Dev Ctr, Coastal & Hydraul Lab, Vicksburg, MS 39180 USA.
RP Smith, JM (reprint author), USA, Egineer Res & Dev Ctr, Coastal & Hydraul Lab, 3909 Halls Ferry Rd, Vicksburg, MS 39180 USA.
EM Jane.M.Smith@usace.army.mil
FU Office, Chief of Engineers; US Army Corps of Engineers
FX Permission to publish this paper was granted by the Office, Chief of
Engineers, US Army Corps of Engineers. This research was conducted under
the Wave Computations for Ecosystem Modeling under the System-Wide Water
Resources Research Program of the Coastal and Hydraulics Laboratory, US
Army Engineer Research and Development Center.
NR 21
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U1 2
U2 26
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0029-8018
J9 OCEAN ENG
JI Ocean Eng.
PD JAN
PY 2010
VL 37
IS 1
SI SI
BP 37
EP 47
DI 10.1016/j.oceaneng.2009.07.008
PG 11
WC Engineering, Marine; Engineering, Civil; Engineering, Ocean;
Oceanography
SC Engineering; Oceanography
GA 556QS
UT WOS:000274606800005
ER
PT J
AU Seabergh, WC
AF Seabergh, W. C.
TI Physical model study of wave and current conditions at 17th Street Canal
breach due to Hurricane Katrina
SO OCEAN ENGINEERING
LA English
DT Article
DE Hurricane; Katrina; Hurricane waves; Lake Pontchartrain; Floodwall
breach; Debris accumulation; Head loss; 17th Street Canal; Physical
model
AB A 1:50 scale physical model was constructed for the 17th Street Canal region, New Orleans, on the southern coast of Lake Pontchartrain, as part of the Interagency Performance Evaluation Task Force (IPET) study of Hurricane Katrina. The purpose of the 1350 m(2) physical model that represented about 3.4 km(2) of the local area was to aid in defining wave and water velocity conditions in the 17th Street Canal during the time period leading up to the breaching of the floodwall within the Canal. In the immediate period following this disaster, there were many hypothesis of failure put forth in the media. Some of these hypothesis indicated wave action may have been the underlying cause of the failure of the 17th Street Canal floodwall. Some performed numerical work with inappropriate boundary conditions, which indicated strong wave-generated currents may have caused erosion along the floodwalls. This physical model study indicated a number of wave-attenuating processes occurring as waves approached the location of the breach. Wave height reduction resulted due to: (1) refraction of wave energy over the shallower submerged land areas surrounding the harbor away from the canal; (2) reflection of energy off vertical walls in the region between the entrance to the canal near the Coast Guard Harbor and the bridge; and (3) interaction of the wave with the Hammond Highway bridge, including reflection and transmission loss. Wave heights near the lakeside of the bridge were 0.3-0.9 m in height, reduced from 1.8 to 2.7 m wave heights in the open lake. Waves on the south side of the bridge, near the breach, were further reduced to heights below 0.3 m. These results supported the conclusion that waves were not a significant factor for the 17th Street Canal floodwall failure. Other IPET investigations determined floodwall failure was of a geotechnical nature due to the high surge water level. The physical model also provided calibration information for numerical wave models. The effects of debris on flow and waves after the breach was formed were also investigated. Published by Elsevier Ltd.
C1 USA, Corps Engineers, Coastal & Hydraul Lab, Engn Res & Dev Ctr, Vicksburg, MS 39180 USA.
RP Seabergh, WC (reprint author), USA, Corps Engineers, Coastal & Hydraul Lab, Engn Res & Dev Ctr, Vicksburg, MS 39180 USA.
EM william.c.seabergh@usace.army.mil
FU US Army Corps of Engineers
FX Due to the short deadline for the Report to the United States Congress
by IPET, an accelerated construction and operation schedule was
necessitated. Thanks are due to the Engineering and Research Development
Center's Department of Public Works for their part in model
construction. Also, special thanks are due to the engineers, especially
Dr. Michael Briggs, who provided expertise in directional wave generator
programming, and technicians who worked on the study and are part of the
Harbors, Entrances and Structures Branch of the Coastal and Hydraulics
Laboratory. Directors of IPET Task 4 were Drs. Donald Resio and Robert
Dean. Comments of anonymous reviewers are recognized and appreciated.
Permission to publish this paper has been granted by the Chief, US Army
Corps of Engineers.
NR 16
TC 0
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U1 1
U2 5
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0029-8018
J9 OCEAN ENG
JI Ocean Eng.
PD JAN
PY 2010
VL 37
IS 1
SI SI
BP 48
EP 58
DI 10.1016/j.oceaneng.2009.08.012
PG 11
WC Engineering, Marine; Engineering, Civil; Engineering, Ocean;
Oceanography
SC Engineering; Oceanography
GA 556QS
UT WOS:000274606800006
ER
PT J
AU Wamsley, TV
Cialone, MA
Smith, JM
Atkinson, JH
Rosati, JD
AF Wamsley, Ty V.
Cialone, Mary A.
Smith, Jane M.
Atkinson, John H.
Rosati, Julie D.
TI The potential of wetlands in reducing storm surge
SO OCEAN ENGINEERING
LA English
DT Article
DE Hurricane; Katrina; Marsh; Restoration; Degradation; Coastal protection
ID VEGETATION; LOUISIANA; MARSH
AB A critical component of flood protection in some coastal areas is expected to be the potential contribution of wetlands to the lowering of surges as they propagate inland from the coast. Consequently, an accurate method to quantify the effect of wetlands on coastal surge levels is required. The degree to which wetlands attenuate surge is the subject of debate and difficult to assess. The potential of wetlands to reduce storm surge has typically been expressed as a constant attenuation rate, but the relationship is much more complex. A numerical storm surge model was applied to assess the sensitivity of surge response to specified wetland loss. Results suggest that wetlands do have the potential to reduce surges but the magnitude of attenuation is dependent on the surrounding coastal landscape and the strength and duration of the storm forcing. Numerical models that simulate the relevant physical processes can provide valuable information on how to best integrate wetlands into coastal protection plans. However, while the model applied for this study has displayed skill in estimating surges over wetlands, the formulations are missing key processes and model advancements are necessary. Published by Elsevier Ltd.
C1 [Wamsley, Ty V.; Cialone, Mary A.; Smith, Jane M.; Rosati, Julie D.] USA, Engineer Res & Dev Ctr, Coastal & Hydraul Lab, Vicksburg, MS 39180 USA.
[Atkinson, John H.] Arcadis US, Boulder, CO USA.
RP Wamsley, TV (reprint author), USA, Engineer Res & Dev Ctr, Coastal & Hydraul Lab, 3909 Halls Ferry Rd, Vicksburg, MS 39180 USA.
EM Ty.V.Wamsley@usace.army.mil
FU Louisiana Coastal Area Science and Technology Program; US Army Engineer
MOdeling of Relevant PHysics Of Storms (MORPHOS) Program
FX This work was performed as part of a study commissioned by the US Army
Engineer District, New Orleans, with additional support provided by the
Louisiana Coastal Area Science and Technology Program and the US Army
Engineer MOdeling of Relevant PHysics Of Storms (MORPHOS) Program.
NR 28
TC 67
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U1 9
U2 50
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0029-8018
J9 OCEAN ENG
JI Ocean Eng.
PD JAN
PY 2010
VL 37
IS 1
SI SI
BP 59
EP 68
DI 10.1016/j.oceaneng.2009.07.018
PG 10
WC Engineering, Marine; Engineering, Civil; Engineering, Ocean;
Oceanography
SC Engineering; Oceanography
GA 556QS
UT WOS:000274606800007
ER
PT J
AU Irish, JL
Resio, DT
AF Irish, Jennifer L.
Resio, Donald T.
TI A hydrodynamics-based surge scale for hurricanes
SO OCEAN ENGINEERING
LA English
DT Article
DE Hurricane; Katrina; Surge; Flood warning; Hurricane evacuation; Tropical
cyclones
ID STORM-SURGE; WIND; MODEL
AB Record hurricane surges over the last several years have demonstrated the need for an improved surge hazard warning scale for hurricanes. Here, a simple hydrodynamics-based surge scale for hurricane surge hazard is presented. This surge scale incorporates readily available meteorological information along with regional-scale bathymetry into a single measure of expected surge levels at the coast. We further outline an approach for estimating expected flood inundation and damages based on the alongshore extent of high surges during hurricanes. Comparisons between this new surge scale and historical hurricane observations show a measurable improvement over existing surge indices, including the Saffir-Simpson scale. It is anticipated that the proposed surge scale will improve public awareness of surge hazard and assist governments in communicating critical decisions regarding evacuation and emergency response. (C) 2009 Elsevier Ltd. All rights reserved.
C1 [Irish, Jennifer L.] Texas A&M Univ, Zachry Dept Civil Engn, College Stn, TX 77843 USA.
[Resio, Donald T.] USA, Ctr Res & Dev, Vicksburg, MS 39180 USA.
RP Irish, JL (reprint author), Texas A&M Univ, Zachry Dept Civil Engn, College Stn, TX 77843 USA.
EM jirish@civil.tamu.edu; donald.t.resio@usace.army.mil
OI Irish, Jennifer/0000-0002-2429-5953
FU US Army Engineer Research and Development Center; Texas General Land
Office Coastal Management Program [08-009-000]
FX The research presented here was funded by the US Army Engineer Research
and Development Center and in part by the Texas General Land Office
Coastal Management Program through Grant no. 08-009-000. The authors
wish to thank Dr. Mark Powell for his review of this manuscript. The use
of trade names does not constitute an endorsement in the use of these
products by the US Government.
NR 43
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U1 0
U2 11
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0029-8018
J9 OCEAN ENG
JI Ocean Eng.
PD JAN
PY 2010
VL 37
IS 1
SI SI
BP 69
EP 81
DI 10.1016/j.oceaneng.2009.07.012
PG 13
WC Engineering, Marine; Engineering, Civil; Engineering, Ocean;
Oceanography
SC Engineering; Oceanography
GA 556QS
UT WOS:000274606800008
ER
PT J
AU Niedoroda, AW
Resio, DT
Toro, GR
Divoky, D
Das, HS
Reed, CW
AF Niedoroda, A. W.
Resio, D. T.
Toro, G. R.
Divoky, D.
Das, H. S.
Reed, C. W.
TI Analysis of the coastal Mississippi storm surge hazard
SO OCEAN ENGINEERING
LA English
DT Article
DE Hurricane; Katrina; Hurricane storm surge; Coastal flood hazard; Surge
modeling
AB Following the extreme flooding caused by Hurricane Katrina, the Federal Emergency Management Agency (FEMA) commissioned a study to update the Mississippi coastal flood hazard maps. The project included development and application of new methods incorporating the most recent advances in numerical modeling of storms and coastal hydrodynamics, analysis of the storm climatology, and flood hazard evaluation. This paper discusses the methods that were used and how they were applied to the coast of the State of Mississippi. (C) 2009 Elsevier Ltd. All rights reserved.
C1 [Niedoroda, A. W.; Reed, C. W.] URS Corp, Tallahassee, FL 32317 USA.
[Resio, D. T.] USA, Corps Engineers, ERDC, CHL, Vicksburg, MS 39180 USA.
[Toro, G. R.] Risk Engn Inc, William Lettis & Associates, Acton, MA 01720 USA.
[Divoky, D.] Watershed Concepts, AECOM Water, Atlanta, GA 30309 USA.
[Das, H. S.] Jackson State Univ, Dept Civil & Environm Engn, Jackson, MS 39217 USA.
RP Niedoroda, AW (reprint author), URS Corp, 1625 Summit Lake Dr,Suite 200, Tallahassee, FL 32317 USA.
EM alan_niedoroda@urscorp.com
FU FEMA [HSFEHQ-06-J-0018]
FX The authors express their appreciation for the extensive discussions and
technical exchanges with other members of the URS/FEMA and USACE teams,
particularly the late Leon Borgman, Vince Carclone, Robert Dean, Donald
Slinn, Todd Walton, Joannes Westerink, John Atkinson, Lyle Zevenbergen,
Andrew Cox, David Levinson, Stephen Baig, Ty Wamsley, Jane Smith, Norm
Scheffner, Peter Vickery, and Lynda Charles. The URS project team
included not only staff from its Tallahassee FL and Gaithersburg MD
offices, but also, as subcontractors, Watershed Concepts (AECOM Water),
Dewberry, Risk Engineering, Oceanweather Inc (OWI), and Ayres
Associates. Essential project support was provided by Dr. Shabbar Saifee
and Mr. Robert Lowe of FEMA. Special appreciation is expressed to
Richard Sanborn for his technical assistance and documentation efforts,
including preparation of this manuscript. This work was sponsored by
FEMA under Contract HSFEHQ-06-J-0018. The opinions expressed here are
not necessarily those of the US Government or the sponsoring agency.
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PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0029-8018
J9 OCEAN ENG
JI Ocean Eng.
PD JAN
PY 2010
VL 37
IS 1
SI SI
BP 82
EP 90
DI 10.1016/j.oceaneng.2009.08.019
PG 9
WC Engineering, Marine; Engineering, Civil; Engineering, Ocean;
Oceanography
SC Engineering; Oceanography
GA 556QS
UT WOS:000274606800009
ER
PT J
AU Ebersole, BA
Westerink, JJ
Bunya, S
Dietrich, JC
Cialone, MA
AF Ebersole, B. A.
Westerink, J. J.
Bunya, S.
Dietrich, J. C.
Cialone, M. A.
TI Development of storm surge which led to flooding in St. Bernard Polder
during Hurricane Katrina
SO OCEAN ENGINEERING
LA English
DT Article
DE Hurricane; Katrina; Louisiana; Storm; Surge; Inundation; Flooding;
ADCIRC
ID MODEL
AB Hurricane Katrina caused devastating flooding in St. Bernard Parish, Louisiana. Storm surge surrounded the polder that comprises heavily populated sections of the Parish in addition to the Lower 9th Ward section of Orleans Parish. Surge propagated along several pathways to reach levees and walls around the polder's periphery. Extreme water levels led to breaches in the levee/wall system which, along with wave overtopping and steady overflow, led to considerable flood water entering the polder. Generation and evolution of the storm surge as it propagated into the region is examined using results from the SL15 regional application of the ADCIRC storm surge model. Fluxes of water into the region through navigation channels are compared to fluxes which entered through Lake Borgne and over inundated wetlands surrounding the lake. Fluxes through Lake Borgne and adjacent wetlands were found to be the predominant source of water reaching the region. Various sources of flood water along the polder periphery are examined. Flood water primarily entered through the east and west sides of the polder. Different peak surges and hydrograph shapes were experienced along the polder boundaries, and reasons for the spatial variability in surge conditions are discussed. Published by Elsevier Ltd.
C1 [Ebersole, B. A.; Cialone, M. A.] USA, Engineer Res & Dev Ctr, Coastal & Hydraul Lab, Vicksburg, MS 39180 USA.
[Westerink, J. J.; Dietrich, J. C.] Univ Notre Dame, Dept Civil Engn & Geol Sci, Notre Dame, IN 46556 USA.
[Bunya, S.] Univ Tokyo, Dept Syst Innovat, Tokyo, Japan.
RP Ebersole, BA (reprint author), USA, Engineer Res & Dev Ctr, Coastal & Hydraul Lab, 3909 Halls Ferry Rd, Vicksburg, MS 39180 USA.
EM Bruce.A.Ebersole@usace.army.mil
RI Dietrich, Joel/E-5161-2011
OI Dietrich, Joel/0000-0001-5294-2874
FU Office, Chief of Engineers, US Army Corps of Engineers
FX The dedication and hard work of all those who contributed to the work
embodied in Volume IV of the IPET report, and to all those who have
contributed to advancing the hurricane storm surge and wave modeling
technology for southeast Louisiana through both the Louisiana Coastal
Protection and Restoration Study, the Mississippi Coastal Improvements
Project, and the work done in support of FEMA Region VI, and the
contributions of those involved in the Corps' MORPHOS R&D project to
improve hurricane models, are recognized and greatly valued. Permission
to publish this paper was granted by the Office, Chief of Engineers, US
Army Corps of Engineers.
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PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0029-8018
J9 OCEAN ENG
JI Ocean Eng.
PD JAN
PY 2010
VL 37
IS 1
SI SI
BP 91
EP 103
DI 10.1016/j.oceaneng.2009.08.013
PG 13
WC Engineering, Marine; Engineering, Civil; Engineering, Ocean;
Oceanography
SC Engineering; Oceanography
GA 556QS
UT WOS:000274606800010
ER
PT J
AU Dean, RG
Rosati, JD
Walton, TL
Edge, BL
AF Dean, R. G.
Rosati, J. D.
Walton, T. L.
Edge, B. L.
TI Erosional equivalences of levees: Steady and intermittent wave
overtopping
SO OCEAN ENGINEERING
LA English
DT Article
DE Hurricane; Katrina; Levees; Levee failure; Wave overtopping;
Wave-induced erosion; Overtopping duration
AB Present criteria for acceptable grass covered levee overtopping are based on average overtopping values but do not include the effect of overtopping duration. This paper applies experimental steady state results for acceptable overtopping to the case of intermittent wave overtopping. Laboratory results consisting of velocities and durations for acceptable land side levee erosion due to steady flows are examined to determine the physical basis for the erosion. Three bases are examined: (1) velocity above a threshold value, (2) shear stress above a threshold value, and (3) work above a threshold value. The work basis provides the best agreement with the data and a threshold work value and a work index representing the summation of the product of work above the threshold and time are developed. The governing equations for flow down the land side of a levee establish that the flows near the land side levee toe will be supercritical. Wave runup is considered to be Rayleigh distributed with the runup above the levee crest serving as a surrogate for overtopping. Two examples illustrating application of the methodology are presented. Example I considers three qualities of grass cover: good, average, and poor. The required levee elevations for these three covers differ by 1.8 m. The results for Example I are compared with the empirical criteria of 0.1 liters per second per meter (I/s per m), 1.0 I/s per m, and 10.0 I/s per m. It is found that the required crest elevation by the methodology recommended herein for the "poor" cover is only slightly lower than for the criterion for average overtopping of q = 10.0 I/s per m but significantly lower than for the overtopping criterion of 1.0 and 0.1 m/s per m. Example 2 considers two durations of the peak surge with the result that the longer duration peak surge requires a levee that is higher by approximately 0.8 m. (C) 2009 Elsevier Ltd. All rights reserved.
C1 [Edge, B. L.] N Carolina State Univ, Dept Civil Engn, Raleigh, NC 27695 USA.
[Dean, R. G.] Univ Florida, Dept Civil & Coastal Engn, Gainesville, FL 32611 USA.
[Rosati, J. D.] Engn Res & Dev Ctr, Coastal & Hydraul Lab, Vicksburg, MS 39180 USA.
[Walton, T. L.] Florida State Univ, Beaches & Shores Resource Ctr, Tallahassee, FL 32310 USA.
RP Edge, BL (reprint author), N Carolina State Univ, Dept Civil Engn, Raleigh, NC 27695 USA.
EM b-edge@tamu.edu
OI Edge, Billy/0000-0001-9291-3920
FU New Orleans District of the US Army Corps of Engineers
FX Financial support provided by the New Orleans District of the US Army
Corps of Engineers for the effort leading to this paper is gratefully
acknowledged. Review of earlier versions of this paper by Dr. Steve
Hughes of the US Army Engineer Development and Research Center and Dr.
Mathijs van Ledden of Haskoning were quite beneficial; however, the
Authors are responsible for any shortcomings of the paper. The Authors
are appreciative of the comments and suggestions by three anonymous
Reviewers which contributed to the quality of this final paper.
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PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0029-8018
J9 OCEAN ENG
JI Ocean Eng.
PD JAN
PY 2010
VL 37
IS 1
SI SI
BP 104
EP 113
DI 10.1016/j.oceaneng.2009.07.016
PG 10
WC Engineering, Marine; Engineering, Civil; Engineering, Ocean;
Oceanography
SC Engineering; Oceanography
GA 556QS
UT WOS:000274606800011
ER
PT J
AU Toro, GR
Resio, DT
Divoky, D
Niedoroda, AW
Reed, C
AF Toro, Gabriel R.
Resio, Donald T.
Divoky, David
Niedoroda, Alan Wm.
Reed, Chris
TI Efficient joint-probability methods for hurricane surge frequency
analysis
SO OCEAN ENGINEERING
LA English
DT Article
DE Hurricane; Katrina; Storm surge; Joint-probability method; Probabilistic
methods; Flood insurance maps; Numerical methods
ID GULF-OF-MEXICO; MODEL
AB The Joint-Probability Method (JPM) was adopted by federal agencies for critical post-Katrina determinations of hurricane surge frequencies. In standard JPM implementations, it is necessary to consider a very large number of combinations of storm parameters, and each such combination (or synthetic storm) requires the simulation of wind, waves, and surge. The tools used to model the wave and surge phenomena have improved greatly in recent years, but this improvement and the use of very large high-resolution grids have made the computations both time-consuming and expensive. In order to ease the Computational burden, two independent approaches have been developed to reduce the number of storm surge Simulations that are required. Both of these so-called JPM-OS (J PM-Optimal Sampling) methods seek to accurately cover the entire storm parameter space through optimum selection of a small number of parameter values so as to minimize the number of required storm simulations. Tests done for the Mississippi coast showed that the accuracy of the two methods is comparable to that of a full JPM analysis, with a reduction of an order of magnitude or more in the computational effort. (C) 2009 Elsevier Ltd. All rights reserved.
C1 [Toro, Gabriel R.] Risk Engn Inc, William Lettis & Associates, Acton, MA 01720 USA.
[Resio, Donald T.] USA, Corps Engineers, ERDC, CHL, Vicksburg, MS 39180 USA.
[Divoky, David] Watershed Concepts, AECOM Water, Atlanta, GA 30309 USA.
[Niedoroda, Alan Wm.; Reed, Chris] URS Corp, Tallahassee, FL 32317 USA.
RP Toro, GR (reprint author), Risk Engn Inc, William Lettis & Associates, 3 Farmers Row, Acton, MA 01720 USA.
EM g.toro@fugro.com
FU FEMA [HSFEHQ-06-D-0162]; US Army Corps of Engineers
FX The authors express their appreciation for extensive discussions with
the many other members of the FEMA and USACE study teams. The National
Oceanic and Atmospheric Administration provided their SLOSH model
configured for the Biloxi basin. Appreciation is also expressed to
Richard Sanborn for his technical assistance and help in manuscript
preparation. The work was sponsored by FEMA under Contract
HSFEHQ-06-D-0162 (Task Order 06-J-0018), and by the US Army Corps of
Engineers under Purchase Order numbers W912HZ-06-P-0266,
W912HZ-08-P-0095 and W912BU-07-P-0211. The opinions expressed here are
not those of the US Government or the sponsoring agencies.
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PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0029-8018
J9 OCEAN ENG
JI Ocean Eng.
PD JAN
PY 2010
VL 37
IS 1
SI SI
BP 125
EP 134
DI 10.1016/j.oceaneng.2009.09.004
PG 10
WC Engineering, Marine; Engineering, Civil; Engineering, Ocean;
Oceanography
SC Engineering; Oceanography
GA 556QS
UT WOS:000274606800013
ER
PT J
AU Lynett, PJ
Melby, JA
Kim, DH
AF Lynett, Patrick J.
Melby, Jeffrey A.
Kim, Dae-Hong
TI An application of Boussinesq modeling to Hurricane wave overtopping and
inundation
SO OCEAN ENGINEERING
LA English
DT Article
DE Hurricane; Katrina; Overtopping; Numerical modeling; Boussinesq
ID SHALLOW-WATER EQUATIONS; COASTAL STRUCTURES; NUMERICAL-MODEL; SOLITARY
WAVES; RUN-UP; TURBULENT; OVERFLOW; SIMULATION
AB Wave and combined wave-and-surge overtopping was significant across a large portion of the hurricane protection system of New Orleans during Hurricane Katrina. In particular, along the east-facing levees of the Mississippi River-Gulf Outlet (MRGO), the overtopping caused numerous levee breaches. This paper will focus on the MRGO levees, and will attempt to recreate the hydrodynamic conditions during Katrina to provide an estimate of the experienced overtopping rates. Due to the irregular beach profiles leading up to the levees and the general hydrodynamic complexity of the overtopping in this area, a Boussinesq wave model is employed. This model is shown to be accurate for the prediction of waves shoaling and breaking over irregular beach profiles, as well as for the overtopping of levees. With surge levels provided by ADCIRC and nearshore wave heights by STWAVE, the Boussinesq model is used to predict conditions at the MRGO levees for 10 h near the peak of Katrina. The peak simulated overtopping rates correlate well with expected levee damage thresholds and observations of damage in the levee system. Finally, the predicted overtopping rates are utilized to estimate a volumetric flooding rate as a function of time for the entire 20 km stretch of east-facing MRGO levees. (C) 2009 Elsevier Ltd. All rights reserved.
C1 [Lynett, Patrick J.; Kim, Dae-Hong] Texas A&M Univ, Zachry Dept Civil Engn, College Stn, TX 77843 USA.
[Melby, Jeffrey A.] USA, Engineer Res & Dev Ctr, Vicksburg, MS 39180 USA.
RP Lynett, PJ (reprint author), Texas A&M Univ, Zachry Dept Civil Engn, College Stn, TX 77843 USA.
EM plynett@civil.tamu.edu
RI Lynett, Patrick/A-1458-2011; Kim, Dae-Hong/L-9233-2013; Lynett,
Patrick/B-5932-2014
OI Lynett, Patrick/0000-0002-2856-9405
NR 32
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PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0029-8018
J9 OCEAN ENG
JI Ocean Eng.
PD JAN
PY 2010
VL 37
IS 1
SI SI
BP 135
EP 153
DI 10.1016/j.oceaneng.2009.08.021
PG 19
WC Engineering, Marine; Engineering, Civil; Engineering, Ocean;
Oceanography
SC Engineering; Oceanography
GA 556QS
UT WOS:000274606800014
ER
PT J
AU Roschewski, M
Wilson, WH
AF Roschewski, Mark
Wilson, Wyndham H.
TI Biology and Management of Rare Primary Extranodal T-cell Lymphomas
SO ONCOLOGY-NEW YORK
LA English
DT Article
ID GAMMA-DELTA; CLINICOPATHOLOGICAL ENTITY; CELIAC-DISEASE;
PROGNOSTIC-FACTORS; CLINICAL-OUTCOMES; FEATURES; TRANSPLANTATION;
CLASSIFICATION
AB Peripheral T-cell lymphomas (PTCLs) are uncommonly encountered malignancies in the United States, and hepatosplenic T-cell lymphoma (HSTCL), subcutaneous panniculitis-like T-cell lymphoma (SPTCL), and enteropathy-type T-cell lymphoma (ETTCL) are rare subtypes of PTCLs that often present with primarily extranodal disease. Despite the fact that these tumors have distinct clinical and pathologic features, they are often diagnosed after significant delay. The combination of delay in diagnosis with ineffective therapies has resulted in a poor prognosis in most cases. Techniques that identify T-cell receptor gene rearrangements and flow cytometry that can identify characteristic immunophenotypes have guided our understanding of the underlying cell of origin of these rare PTCLs. As knowledge regarding the biology of these lymphomas increases alongside the development of newer therapeutics with novel mechanisms, clinicians must accordingly improve their familiarity with the clinical settings in which these rare malignancies arise as well as the pathologic features that make them unique
C1 [Wilson, Wyndham H.] NCI, Lymphoma Therapeut Sect, Metab Branch, Ctr Canc Res,NIH, Bethesda, MD 20892 USA.
[Roschewski, Mark] Walter Reed Army Med Ctr, Washington, DC 20307 USA.
RP Wilson, WH (reprint author), NCI, Lymphoma Therapeut Sect, Metab Branch, Ctr Canc Res,NIH, 9000 Rockville Pike,Bldg 10,Room 4N115, Bethesda, MD 20892 USA.
EM wilsonw@mail.nih.gov
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U1 0
U2 0
PU UBM MEDICA
PI NORWALK
PA 535 CONNECTICUT AVE, STE 300, NORWALK, CT 06854 USA
SN 0890-9091
J9 ONCOLOGY-NY
JI Oncology-NY
PD JAN
PY 2010
VL 24
IS 1
BP 94
EP 100
PG 7
WC Oncology
SC Oncology
GA 800AZ
UT WOS:000293330700011
PM 20187328
ER
PT S
AU Mentzer, MA
Herr, DA
Brewer, KJ
Ojason, N
Tarpine, HA
AF Mentzer, M. A.
Herr, D. A.
Brewer, K. J.
Ojason, N.
Tarpine, H. A.
BE Jiang, S
Digonnet, MJF
Glesener, JW
Dries, JC
TI Detector Development for X-ray Imaging
SO OPTICAL COMPONENTS AND MATERIALS VII
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Optical Components and Materials VII
CY JAN 26-28, 2010
CL San Francisco, CA
SP SPIE
DE flash x-ray cineradiography; flash x-ray; x-ray imaging; scintillator
screen; x-ray detector
AB X-ray imaging requires unique optical detector system configuration for optimization of image quality, resolution, and contrast ratio. A system is described whereby x-ray photons from multiple anode sources create a series of repetitive images on fast-decay scintillator screens, from which an intensified image is transferred to a fast phosphor on a GEN II image intensifier and collected as a cineradiographic video with high speed digital imagery. The work addresses scintillator material formulation, flash x-ray implementation, image intensification, and high speed video processing and display. Novel determination of optimal scintillator absorption, x-ray energy and dose relationships, contrast ratio determination, and test results are presented.
C1 [Mentzer, M. A.; Brewer, K. J.] USA, Aberdeen Test Ctr, Aberdeen Proving Ground, MD 21005 USA.
RP Mentzer, MA (reprint author), USA, Aberdeen Test Ctr, 400 Colleran Rd, Aberdeen Proving Ground, MD 21005 USA.
NR 4
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U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-7994-5
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7598
AR 759822
DI 10.1117/12.855873
PG 6
WC Optics
SC Optics
GA BSN21
UT WOS:000284997500059
ER
PT S
AU Churaman, WA
Becker, CR
Metcalfe, GD
Hanrahan, BM
Currano, LJ
Stoldt, CR
AF Churaman, Wayne A.
Becker, Collin R.
Metcalfe, Grace D.
Hanrahan, Brendan M.
Currano, Luke J.
Stoldt, Conrad R.
BE Dickey, FM
Beyer, RA
TI Optical Initiation of Nanoporous Energetic Silicon for Safing and Arming
Technologies
SO OPTICAL TECHNOLOGIES FOR ARMING, SAFING, FUZING, AND FIRING VI
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Optical Technologies for Arming, Safing, Fuzing, and
Firing VI
CY AUG 02, 2010
CL San Diego, CA
SP SPIE
DE Raman spectroscopy; metastable intermolecular composite; nanoenergetic;
porous silicon; explosive
ID EMITTING POROUS SILICON; SPECTROSCOPY; STRESS; SHIFT
AB Nanoporous silicon, commonly recognized for its photoluminescent properties, has gained attention as a new energetic material capable of energy density more than twice that of TNT. The addition of an oxidizer solution to inert nanoporous silicon results in an exothermic reaction when heat, friction, or focused light is supplied to the system. The energetic material can be integrated alongside microelectronics and micro-electro-mechanical systems (MEMS) for on-chip applications. This integration capability, along with the potential for large energetic yield, makes nanoporous energetic silicon a viable material for developing novel MEMS Safing and Arming (S&A) technologies. While ignition of nanoporous energetic silicon has been demonstrated for the purpose of propagation velocity measurements using a YAG laser, in this paper we show optical ignition for potential integration of the energetic with a miniaturized S&A device. Ignition is demonstrated using a 514nm laser at 37.7mW and a power density of 2.7kW/cm(2) at a stand-off distance of 23cm. Raman spectroscopy verifies that significant stress in porous silicon is produced by a laser operating near the power density observed to ignite porous silicon. Lastly, we integrate the nanoporous energetic silicon with a MEMS S&A, and demonstrate transfer to a firetrain consisting of one primary and one secondary explosive using a thermal initiator to ignite the nanoporous energetic silicon.
C1 [Churaman, Wayne A.; Becker, Collin R.; Metcalfe, Grace D.; Hanrahan, Brendan M.; Currano, Luke J.] USA, Res Lab, Adelphi, MD 20783 USA.
RP Churaman, WA (reprint author), USA, Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
EM wayne.churaman@arl.army.mil
NR 12
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Z9 6
U1 2
U2 12
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8291-4
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7795
AR 779506
DI 10.1117/12.860778
PG 9
WC Optics; Physics, Applied
SC Optics; Physics
GA BTQ32
UT WOS:000287761900003
ER
PT J
AU Wang, HZ
Zhou, WM
Zheng, JP
AF Wang, H. Z.
Zhou, W. M.
Zheng, J. P.
TI A 2D rods-in-air square-lattice photonic crystal optical switch
SO OPTIK
LA English
DT Article
DE Photonic crystal; Optical switches
ID WAVE-GUIDES; CROSS-TALK
AB A 2D photonic crystal optical switch is proposed based on a rods-in-air square-lattice photonic crystal by removing two cross-lines of rods from a 2D square-lattice photonic crystal to form four optical channels. The simulation results show that, when inserting a single rod along the diagonal line of the intersection area of two removed cross-lines of rods, the position of the single inserted rod determines how much incident energy goes into different channels. In the case of transverse magnetic (TM) Gaussian point source, time domain simulation shows that up to 87.3% of the incident energy can be switched into a channel, which is vertical to the source channel. Because there are two diagonal lines in the intersection area of two removed cross-lines of rods, the optical switch feature is achieved by shifting the inserted rod between two diagonal lines. It is also found that the magnitude of the reflected wave in the source channel varies greatly with spatial position of the single inserted rod. The larger the magnitude of the reflected wave in the source channel, the less the energy that goes into the switched channel. The time delay between the incident wave and the reflected wave in the source channel is also related to the position of the single inserted rod. In addition, the large time delay between the incident wave and the reflected wave in the source channel shows that the reflected wave encounters many reflections with the walls of the source channel, instead of waves reflected back from the single inserted rod. (C) 2009 Elsevier GmbH. All rights reserved.
C1 [Wang, H. Z.; Zheng, J. P.] Florida A&M Univ, Dept Elect & Comp Engn, Tallahassee, FL 32310 USA.
[Wang, H. Z.; Zheng, J. P.] Florida State Univ, Tallahassee, FL 32310 USA.
[Zhou, W. M.] USA, Res Lab, Sensors & Elect Devices Directorate, Adelphi, MD 20783 USA.
RP Zheng, JP (reprint author), Florida A&M Univ, Dept Elect & Comp Engn, Tallahassee, FL 32310 USA.
EM zheng@eng.fsu.edu
FU US Army Research Laboratory [DAAD19-01-2-0014]
FX This research was supported by the US Army Research Laboratory under
Cooperative Agreement DAAD19-01-2-0014. The authors would like to thank
Dr. Pedro Moss for his valuable suggestions and discussions.
NR 28
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PU ELSEVIER GMBH, URBAN & FISCHER VERLAG
PI JENA
PA OFFICE JENA, P O BOX 100537, 07705 JENA, GERMANY
SN 0030-4026
J9 OPTIK
JI Optik
PY 2010
VL 121
IS 21
BP 1988
EP 1993
DI 10.1016/j.ijleo.2009.06.002
PG 6
WC Optics
SC Optics
GA 690EX
UT WOS:000284986400017
ER
PT S
AU Hoffman, RC
Pritchett, TM
Orlicki, JA
Dougherty, JM
Lambeth, RH
Rawlett, AM
Herman, WN
Park, DH
AF Hoffman, Robert C.
Pritchett, Timothy M.
Orlicki, Joshua A.
Dougherty, Joseph M.
Lambeth, Robert H.
Rawlett, Adam M.
Herman, Warren N.
Park, Dong Hun
BE Herman, WN
Flom, SR
Foulger, SH
TI High-Voltage Poling of Bulk Guest-Host Polymers
SO ORGANIC THIN FILMS FOR PHOTONIC APPLICATIONS
SE ACS Symposium Series
LA English
DT Proceedings Paper
CT 236th National Meeting of the American-Chemical-Society
CY AUG 17-21, 2008
CL Philadelphia, PA
SP Amer Chem Soc
ID FILMS; ORIENTATION; GENERATION
AB We describe for the first time the fabrication and poling of a 700 mu m thick bulk piece of polymethylmethacrylate (PMMA) doped with various concentrations of Disperse Red 1 (DR1). Maker fringe analysis demonstrates that poling fields of 57 Wpm to 71 V/mu m induce substantial ordering of the DR1 chromophores, resulting in birefringence and significant d(33) and r(33) values. The poling of thick sections of guest-host polymers will have applications for a range of electro-optic applications, including modulators and terahertz generation and detection.
C1 [Hoffman, Robert C.; Pritchett, Timothy M.] USA, Res Lab, Attn AMSRD ARL SE EM, Adelphi, MD 20783 USA.
RP Hoffman, RC (reprint author), USA, Res Lab, Attn AMSRD ARL SE EM, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
EM robert.c.hoffman@us.army.mil
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PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 USA
SN 0097-6156
BN 978-0-8412-2563-3
J9 ACS SYM SER
JI ACS Symp. Ser.
PY 2010
VL 1039
BP 97
EP 109
PG 13
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA BXR36
UT WOS:000296820200007
ER
PT S
AU Soares, JW
Steeves, DM
Singh, J
Im, J
Whitten, JE
AF Soares, Jason W.
Steeves, Diane M.
Singh, Jagdeep
Im, Jisun
Whitten, James E.
BE Teherani, FH
Look, DC
Litton, CW
Rogers, DJ
TI Effect of Surface Modification on the Optical Properties of
Nanocrystalline Zinc Oxide Materials
SO OXIDE-BASED MATERIALS AND DEVICES
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Oxide-based Materials and Devices
CY JAN 24-27, 2010
CL San Francisco, CA
DE metal oxide; nanocrystalline; photoelectron spectroscopy;
photoluminescence; silanes; zinc oxide
ID ZNO THIN-FILMS; PHOTOLUMINESCENCE PROPERTIES; NANOPARTICLES; NANORODS
AB The wide band gap and unique photoluminescence (PL) spectrum of nanocrystalline zinc oxide (nano-ZnO) make it useful for a variety of photonics and sensor applications. Toward the goal of modifying the electronic structure and optical properties of nano-ZnO, nanorods were functionalized with electron withdrawing organosilanes, 1H, 1H, 2H, 2H-perfluorodecyltriethoxysilane (PFDS) and pentafluorophenyltriethoxysilane (PFS), and a partially conjugated heterobifunctional molecule, p-maleimidophenyl isothiocyanate (PMPI). Fourier transform infrared (FTIR) spectroscopy and x-ray photoelectron spectroscopy (XPS) confirmed the presence of the modifiers on the nano-ZnO surface and verified covalent attachment. PL spectroscopy was performed to evaluate the influence of the modifiers on the nano-ZnO inherent optical behavior. An increase in the nano-ZnO near-band edge emission (UV) was evident for the organosilane modifiers, despite their differing electronic structures, while the defect emission (visible) remained unchanged. However, surface modification with the non-silane modifier PMPI resulted in unaltered UV and visible emission intensity. The varying influence of the modifiers may be due to the absence of a silane group in the PMPI, allowing for more efficient electron transport to the modifier. The influence of size/shape of the nanocrystalline ZnO was also examined by reacting spherical nanoparticles with PFDS. Preliminary results indicate that PFDS modification of the nanospheres resulted in similar PL behavior as the nanorods; although, the inherent PL of the spheres differs from the nanorods. These studies will elucidate the role of modifier structure on surface-modified nano-ZnO optical behavior, so that optical tailoring of the nano-ZnO inherent PL can be realized.
C1 [Soares, Jason W.; Steeves, Diane M.] USA, Natick Soldier Res, Ctr Dev & Engn, Natick, MA 01760 USA.
RP Soares, JW (reprint author), USA, Natick Soldier Res, Ctr Dev & Engn, Natick, MA 01760 USA.
EM diane.steeves@us.army.mil
NR 17
TC 0
Z9 0
U1 1
U2 19
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-7999-0
J9 PROC SPIE
PY 2010
VL 7603
AR 76031K
DI 10.1117/12.842322
PG 9
WC Materials Science, Coatings & Films; Physics, Condensed Matter
SC Materials Science; Physics
GA BSA65
UT WOS:000284035700032
ER
PT J
AU Buckenmaier, CC
Kwon, KH
Howard, RS
McKnight, GM
Shriver, CD
Fritz, WT
Garguilo, GA
Joltes, KH
Stojadinovic, A
AF Buckenmaier, Chester C., III
Kwon, Kyung H.
Howard, Robin S.
McKnight, Geselle M.
Shriver, Craig D.
Fritz, William T.
Garguilo, Gerard A.
Joltes, Kristin H.
Stojadinovic, Alexander
TI Double-blinded, Placebo-controlled, Prospective Randomized Trial
Evaluating the Efficacy of Paravertebral Block with and Without
Continuous Paravertebral Block Analgesia in Outpatient Breast Cancer
Surgery
SO PAIN MEDICINE
LA English
DT Article
DE Regional Anesthesia; Paravertebral Nerve Block; Continuous Peripheral
Nerve Block; Outcomes
ID SURGICAL-MANAGEMENT; AMBULATORY SURGERY; ANESTHESIA; INFUSION; HOME;
PAIN
AB Background.
Paravertebral block (PVB) is an effective alternative to general anesthesia for breast cancer surgery. Continuous paravertebral block (CPVB) anesthesia may extend postoperative analgesia at home and improve quality of early postoperative recovery of breast cancer patients.
Purpose.
This double-blinded randomized trial was conducted to compare degree of pain, nausea, mood, level of symptom distress, and time to return to normal daily activity between PVB and PVB + CPVB in patients undergoing outpatient breast cancer surgery.
Patients and Methods.
Between July 2003 and April 2008 we randomly assigned 94 (73 evaluable) patients in a 1:1:1 ratio with early breast cancer to single injection PVB followed by CPVB infusion of 0.1% or 0.2% ropivacaine vs placebo (saline) for 48 hours postoperatively for unilateral breast cancer surgery without reconstruction. The primary study endpoint was the degree of pain, nausea, mood state, level of symptom distress, and recovery time.
Results.
Of the 468 patients assessed for eligibility, 94 consented and 21 with incomplete data or follow-up were excluded, leaving 73 subjects for analysis. There was no clinically significant difference in degree of postoperative pain, nausea, mood state, level of symptom distress, or return to normal activity among the three study groups.
Conclusion.
The current study does not support the routine use of continuous paravertebral catheter anesthesia in patients undergoing operative treatment for breast cancer.
C1 [Buckenmaier, Chester C., III; Kwon, Kyung H.; McKnight, Geselle M.] Walter Reed Army Med Ctr, Anesthesia & Operat Serv, Def & Vet Pain Management Initiat, Washington, DC 20307 USA.
[Howard, Robin S.] Walter Reed Army Med Ctr, Dept Clin Invest, Div Biostat, Washington, DC 20307 USA.
[Shriver, Craig D.; Stojadinovic, Alexander] Walter Reed Army Med Ctr, Clin Breast Care Project, Washington, DC 20307 USA.
[Shriver, Craig D.; Stojadinovic, Alexander] US Mil Canc Inst, Clin Trials Grp, Washington, DC USA.
[Fritz, William T.] Conemaugh Mem Med Ctr, Dept Anesthesiol, Johnstown, PA USA.
[Garguilo, Gerard A.] Conemaugh Mem Med Ctr, Johnstown Breast Ctr, Johnstown, PA USA.
[Joltes, Kristin H.] Conemaugh Mem Med Ctr, Acute Pain Serv, Johnstown, PA USA.
RP Buckenmaier, CC (reprint author), Walter Reed Army Med Ctr, Anesthesia & Operat Serv, Def & Vet Pain Management Initiat, Bldg 2,Ward 44,Room 4418,6900 Georgia Ave NW, Washington, DC 20307 USA.
EM chester.buckenmaier@amedd.army.mil
FU Henry M. Jackson Foundation for the Advancement of Military Medicine;
DVPMI; John P. Murtha Neuroscience and Pain Institute
FX We acknowledge Tiffany Felix for her invaluable assistance supported in
part by the Henry M. Jackson Foundation for the Advancement of Military
Medicine. We are grateful to the members and staff of the United States
Military Cancer Institute and the Clinical Breast Care Project for their
consistent support of this collaborative research effort. This clinical
research effort was supported by the DVPMI and the John P. Murtha
Neuroscience and Pain Institute.
NR 16
TC 26
Z9 26
U1 0
U2 2
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1526-2375
J9 PAIN MED
JI Pain Med.
PY 2010
VL 11
IS 5
BP 790
EP 799
PG 10
WC Medicine, General & Internal
SC General & Internal Medicine
GA 590EE
UT WOS:000277206200019
PM 20546516
ER
PT J
AU Allcock, E
Spencer, E
Frazer, R
Applegate, G
Buckenmaier, C
AF Allcock, Edward
Spencer, Eliot
Frazer, R.
Applegate, Gregory
Buckenmaier, Chester, III
TI Continuous Transversus Abdominis Plane (TAP) Block Catheters in a Combat
Surgical Environment
SO PAIN MEDICINE
LA English
DT Article
DE Transversus Abdominis Plane Analgesia; Continuous Peripheral Nerve
Block; Postoperative Regional Anesthesia; Neuraxial Anesthesia and
Coagulopathy; Combat Anesthesia
ID RANDOMIZED CONTROLLED-TRIAL; REGIONAL ANESTHESIA; ANALGESIC EFFICACY
AB Objectives. The ongoing conflict in Afghanistan continues to generate a large number of complex trauma injuries and provides unique challenges to military anesthetists working in forward field hospitals. We report successful use of ultrasound-guided continuous transversus abdominis plane (TAP) block in two Afghan war casualties who sustained major trauma with coagulopathy. The use of bilateral continuous TAP blocks following major thoracoabdominal trauma in a combat environment is unique in the literature.
Design. Case report.
Results. The acute perioperative outcomes of two Afghan civilian patients were improved with bilateral continuous TAP blocks. Multiple benefits shared by both patients included early extubation, excellent analgesia, and minimal post-operative morphine requirements despite the setting of a massive blood transfusion and coagulopathy.
Conclusions. A continuous TAP block technique can be utilized to provide excellent analgesia following major abdominal surgery when neuraxial anesthesia is contraindicated. The TAP block's ease of placement under ultrasound guidance makes this technique particularly useful in the austere battlefield hospital environment.
C1 [Spencer, Eliot] Naval Med Ctr San Diego, San Diego, CA USA.
[Applegate, Gregory; Buckenmaier, Chester, III] Walter Reed Army Med Ctr, Anesthesia Serv, Washington, DC 20307 USA.
[Applegate, Gregory; Buckenmaier, Chester, III] Walter Reed Army Med Ctr, Operat Serv, Washington, DC 20307 USA.
RP Buckenmaier, C (reprint author), Walter Reed Army Med Ctr, Surg Anesthesia Serv, 6900 Georgia Ave NW, Washington, DC 20307 USA.
EM chester.buckenmaier@amedd.army.mil
OI Buckenmaier III, Chester/0000-0003-3623-5525
NR 7
TC 16
Z9 16
U1 0
U2 0
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1526-2375
J9 PAIN MED
JI Pain Med.
PY 2010
VL 11
IS 9
BP 1426
EP 1429
DI 10.1111/j.1526-4637.2010.00894.x
PG 4
WC Medicine, General & Internal
SC General & Internal Medicine
GA 647SA
UT WOS:000281638100016
PM 21050380
ER
PT J
AU Gallo, AC
Codispoti, VT
AF Gallo, Andrew C.
Codispoti, Vincent T.
TI Complex Regional Pain Syndrome Type II Associated with Lumbosacral
Plexopathy: A Case Report
SO PAIN MEDICINE
LA English
DT Article
DE Causalgia; Lumbosacral Plexopathy; Complex Regional Pain; Syndrome
ID NEUROPATHIC PAIN; GABAPENTIN; CAUSALGIA
AB Introduction.
Complex regional pain syndrome (CRPS) is a well-known clinical entity, first described in the 1800s, consisting of pain, hyperalgesia, edema, and sudomotor changes either without (Type I) or with (Type II) a definable nerve injury. CRPS Type II is most commonly caused by high velocity missile injuries, mononeuropathies, and partial nerve transections.
Case Report.
In this case, a 25-year-old soldier who sustained a blast injury causing multiple spinal compression fractures, extremity fractures, and pelvic and sacral fractures was transferred to a U.S. Army medical center for surgical management and rehabilitation. He complained of weakness, sensory changes, and pain in his left lower extremity. The patient also demonstrated swelling and hyperesthesia of the left foot and ankle. Undiagnosed soft tissue injury, fracture, and deep venous thrombosis were ruled out by imaging studies. The patient had an electromyogram/nerve conduction study (EMG/NCS) that showed widespread left sided lumbosacral plexopathy as well as possible cauda equina injury. Triple phase bone scan demonstrated findings consistent with CRPS of the left foot and ankle. He was started on a tricyclic antidepressant and an anticonvulsant. Physical and occupational therapy were quickly engaged to incorporate range of motion exercises, mirror therapy, and physical modalities. The patient continued conservative management and rehabilitation and eventually was discharged with significantly improved function and decreased pain.
Conclusion.
Although many causes of CRPS Type II have been described, this is only the second reported case of CRPS Type II secondary to lumbosacral plexopathy in the literature.
C1 [Gallo, Andrew C.; Codispoti, Vincent T.] Walter Reed Army Med Ctr, Washington, DC 20307 USA.
RP Gallo, AC (reprint author), Walter Reed Army Med Ctr, 6900 Georgia Ave NW, Washington, DC 20307 USA.
EM andrew.gallo@gmail.com
NR 14
TC 1
Z9 2
U1 0
U2 4
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1526-2375
J9 PAIN MED
JI Pain Med.
PY 2010
VL 11
IS 12
BP 1834
EP 1836
DI 10.1111/j.1526-4637.2010.00996.x
PG 3
WC Medicine, General & Internal
SC General & Internal Medicine
GA 691FQ
UT WOS:000285066100015
PM 21134122
ER
PT B
AU Wright, WC
Hendricks, MD
Brockhaus, J
AF Wright, William C.
Hendricks, Michael D.
Brockhaus, John
BE Lee, J
TI DEVELOPMENT AND EVALUATION OF ELEVATION PROFILES AND SLOPE MAPPING
METHODS
SO PAPERS OF THE APPLIED GEOGRAPHY CONFERENCES, VOL 33
LA English
DT Proceedings Paper
CT Applied Geography Conference
CY OCT 20-23, 2010
CL Ft Worth, TX
SP Texas Christian Univ, Texas State Univ San Marcos, Binghamton Univ, George Mason Univ, E Carolina Univ
C1 [Wright, William C.; Hendricks, Michael D.; Brockhaus, John] US Mil Acad, 525A Merritt Rd, West Point, NY 10996 USA.
RP Wright, WC (reprint author), US Mil Acad, 525A Merritt Rd, West Point, NY 10996 USA.
EM williams.charles.wright@us.army.mil
NR 9
TC 0
Z9 0
U1 0
U2 0
PU SUNY BINGHAMTON DEPT GEOGRAPHY
PI BINGHAMTON
PA BINGHAMTON, NY 13901 USA
PY 2010
BP 230
EP 236
PG 7
WC Geography; Geography, Physical
SC Geography; Physical Geography
GA BG8OR
UT WOS:000392561300026
ER
PT S
AU Suzuki, SM
Stevens, RC
Richter, RJ
Cole, TB
Park, S
Otto, TC
Cerasoli, DM
Lenz, DE
Furlong, CE
AF Suzuki, Stephanie M.
Stevens, Richard C.
Richter, Rebecca J.
Cole, Toby B.
Park, Sarah
Otto, Tamara C.
Cerasoli, Douglas M.
Lenz, David E.
Furlong, Clement E.
BE Reddy, ST
TI Engineering Human PON1 in an E. coli Expression System
SO PARAOXONASES IN INFLAMMATION, INFECTION, AND TOXICOLOGY
SE Advances in Experimental Medicine and Biology
LA English
DT Article; Proceedings Paper
CT 3rd International Conference on Paraoxonases
CY SEP 07-10, 2008
CL Univ Calif Los Angeles, Los Angeles, CA
SP US Def Dept, Def Threat Reduct Agcy, Bristol Myers Squibb
HO Univ Calif Los Angeles
DE Recombinant PON1; Nerve agents; Diazoxon; OP therapy; Engineered PON1;
E. coli expression; PON1 knockout mice
ID HUMAN SERUM PARAOXONASE; PURIFICATION; BUTYRYLCHOLINESTERASE;
ARYLESTERASE; PROTECTION; EVOLUTION; TOXICITY; PROTEIN; RABBIT; SOMAN
AB Expression and purification of recombinant human paraoxonase-1 (rHuPON1) from bacterial systems have proven elusive. Most systems for successful production of recombinant PON1 have relied on either eukaryotic expression in baculovirus or prokaryotic expression of synthetic, gene-shuffled rabbit-mouse-human PON1 hybrid molecules. We review here methods and protocols for the production of pure, native rHuPON1 using an E. coli expression system followed by conventional column chromatographic purification. The resulting rHuPON1 is stable, active, and capable of protecting PON1 knockout mice (PON1(-/-)) from exposure to high levels of the organophosphorus (OP) compound diazoxon. Bacterially-derived rHuPON1 can be produced in large quantities and lacks the glycosylation of eukaryotic systems that produces immunogenic complications when used as a therapeutic. The rHuPON1 should be useful for treating insecticide OP exposures and reducing risks of other diseases resulting from low PON1 status. The ease of mutagenesis in bacterial systems will also allow for the generation and screening of rHuPON1 variants with enhanced catalytic efficiencies against nerve agents and other OP compounds.
C1 [Suzuki, Stephanie M.; Richter, Rebecca J.; Cole, Toby B.; Furlong, Clement E.] Univ Washington, Dept Med, Div Med Genet, Seattle, WA 98195 USA.
[Suzuki, Stephanie M.; Richter, Rebecca J.; Furlong, Clement E.] Univ Washington, Dept Genome Sci, Seattle, WA 98195 USA.
[Stevens, Richard C.] Univ Washington, Dept Med & Genome Sci, Div Med Genet, Seattle, WA 98195 USA.
[Cole, Toby B.; Park, Sarah] Univ Washington, Dept Environm & Occupat Hlth Sci, Seattle, WA 98195 USA.
[Park, Sarah] Dept Med, Div Med Genet, Aberdeen Proving Ground, MD USA.
[Park, Sarah] Dept Genome Sci, Aberdeen Proving Ground, MD USA.
[Otto, Tamara C.; Cerasoli, Douglas M.; Lenz, David E.] US Army Med Res, Inst Chem Def, Aberdeen Proving Ground, MD USA.
RP Suzuki, SM (reprint author), Univ Washington, Dept Med, Div Med Genet, Seattle, WA 98195 USA.
EM stephis@u.washington.edu; rstevensboston@gmail.com;
rrichter@u.washington.edu; tobycole@u.washington.edu;
ssp29@u.washington.edu; tamara.c.otto@us.army.mil;
douglas.cerasoli@us.army.mil; david.lenz@us.army.mil;
clem@u.washington.edu
FU National Institutes of Health [E509883, ES04696, ES07033, ES09601/EPA:
RD-83170901]; University of Washington Center for Process Analytical
Chemistry [CFO1]; Defense Threat Reduction Agency
FX This work was supported by National Institutes of Health Grants E509883,
ES04696, ES07033, and ES09601/EPA: RD-83170901, and a grant from the
University of Washington Center for Process Analytical Chemistry (CFO1).
This work was supported in part by the Defense Threat Reduction Agency
(DEL, DMC and TCO). Opinions, interpretations, conclusions, and
recommendations are those of the authors and are not necessarily
endorsed by the US Army.
NR 23
TC 7
Z9 9
U1 0
U2 3
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0065-2598
BN 978-1-60761-349-7
J9 ADV EXP MED BIOL
JI Adv.Exp.Med.Biol.
PY 2010
VL 660
BP 37
EP 45
DI 10.1007/978-1-60761-350-3_5
PG 9
WC Medicine, Research & Experimental
SC Research & Experimental Medicine
GA BOB96
UT WOS:000276140000005
PM 20221869
ER
PT J
AU Nguyen, CT
Moreno-Cabral, CE
Mahnke, CB
AF Nguyen, Charles T.
Moreno-Cabral, Carlos E.
Mahnke, C. Becket
TI Pacemaker Upgrade Causing New-Onset Heart Failure in a Patient with
Complete Congenital Atrioventricular Block
SO PEDIATRIC CARDIOLOGY
LA English
DT Article
DE Biventricular pacing; Congenital complete atrioventricular block;
Dual-chamber pacing; Ventricular pacing
AB For infants with congenital complete atrioventricular block (CCAVB), the choice of pacing modalities is limited. Due to their size and surgical limitations, neonates typically start with an epicardial right ventricular pacing system, then upgrade to right-sided dual-chamber pacing once appropriate size is achieved. These modes are generally well tolerated. However, the reported case involved a patient with CCAVB who paradoxically experienced congestive heart failure after upgrading to a dual-chamber system, a theoretically superior pacing modality. With conversion to biventricular pacing, a relatively new modality for adults with very little pediatric experience to date, the patient's symptoms dramatically improved.
C1 [Nguyen, Charles T.; Mahnke, C. Becket] Tripler Army Med Ctr, Dept Pediat, Honolulu, HI 96859 USA.
[Moreno-Cabral, Carlos E.] Univ Hawaii, John A Burns Sch Med, Kapiolani Med Ctr Women & Children, Dept Surg, Honolulu, HI 96826 USA.
RP Nguyen, CT (reprint author), Tripler Army Med Ctr, Dept Pediat, Honolulu, HI 96859 USA.
EM charles.nguyen@amedd.army.mil
NR 3
TC 0
Z9 1
U1 0
U2 1
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0172-0643
J9 PEDIATR CARDIOL
JI Pediatr. Cardiol.
PD JAN
PY 2010
VL 31
IS 1
BP 106
EP 107
DI 10.1007/s00246-009-9525-z
PG 2
WC Cardiac & Cardiovascular Systems; Pediatrics
SC Cardiovascular System & Cardiology; Pediatrics
GA 544RA
UT WOS:000273675400019
PM 19768488
ER
PT J
AU Myers, TM
Sun, W
Saxena, A
Doctor, BP
Bonvillain, AJ
Clark, MG
AF Myers, Todd M.
Sun, Wei
Saxena, Ashima
Doctor, Bhupendra P.
Bonvillain, Andrew J.
Clark, Matthew G.
TI Systemic administration of the potential countermeasure huperzine
reversibly inhibits central and peripheral acetylcholinesterase activity
without adverse cognitive-behavioral effects
SO PHARMACOLOGY BIOCHEMISTRY AND BEHAVIOR
LA English
DT Article
DE Operant behavior; Visual recognition memory; Drug pharmacology;
Acetylcholinesterase inhibitor; Chemical warfare nerve agent therapy;
Rhesus macaque (Macaca mulatta); Touch screen response
ID CHOLINESTERASE INHIBITOR; PYRIDOSTIGMINE BROMIDE; ADJUNCT PRETREATMENT;
COMPARED EFFICACY; WORKING-MEMORY; SOMAN TOXICITY; NERVE AGENTS;
GUINEA-PIGS; PHYSOSTIGMINE; EXPOSURE
AB Huperzine A is potentially superior to pyridostigmine bromide as a pretreatment for nerve agent intoxication because it inhibits acetylcholinesterase both peripherally and centrally, unlike pyridostigmine. which acts only peripherally. Using rhesus monkeys, we evaluated the time course of acetylcholinesterase and butyrylcholinesterase inhibition following four different doses of -(-)huperzine A: 5, 10, 20, and 40 mu g/kg. Acetylcholinesterase inhibition peaked 30 min after intramuscular injection and varied dose dependently, ranging from about 30% to 75%. Subsequently, cognitive-behavioral functioning was also evaluated at each dose of huperzine A using a six-item serial-probe recognition task that assessed attention, motivation. and working memory. Huperzine did not impair performance, but physostigmine did. The results demonstrate that huperzine A can selectively and reversibly inhibit acetylcholinesterase without cognitive-behavioral side effects, thus warranting further study. Published by Elsevier Inc.
C1 [Myers, Todd M.; Bonvillain, Andrew J.; Clark, Matthew G.] USA, Med Res Inst Chem Def, Aberdeen Proving Ground, MD 21010 USA.
[Sun, Wei; Saxena, Ashima; Doctor, Bhupendra P.] Walter Reed Army Inst Res, Silver Spring, MD 20910 USA.
RP Myers, TM (reprint author), 3100 Ricketts Point Rd, Aberdeen, MD 21010 USA.
EM todd.myers2@us.army.mil
NR 38
TC 7
Z9 8
U1 0
U2 2
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0091-3057
J9 PHARMACOL BIOCHEM BE
JI Pharmacol. Biochem. Behav.
PD JAN
PY 2010
VL 94
IS 3
BP 477
EP 481
DI 10.1016/j.pbb.2009.10.011
PG 5
WC Behavioral Sciences; Neurosciences; Pharmacology & Pharmacy
SC Behavioral Sciences; Neurosciences & Neurology; Pharmacology & Pharmacy
GA 551RK
UT WOS:000274226500021
PM 19909771
ER
PT S
AU Aranda, FJ
Perry, J
Archambault, D
Belton, L
Carlson, J
Ziegler, D
Kimball, B
AF Aranda, Francisco J.
Perry, Jeffrey
Archambault, Deana
Belton, Lauren
Carlson, Joel
Ziegler, David
Kimball, Brian
BE Yin, S
Guo, R
TI Optical properties of a retro-reflection fiber cross section formed via
tri-component fiber extrusion
SO PHOTONIC FIBER AND CRYSTAL DEVICES: ADVANCES IN MATERIALS AND
INNOVATIONS IN DEVICE APPLICATIONS IV
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Photonic Fiber and Crystal Devices - Advances in Materials
and Innovations in Device Applications IV
CY AUG 01-02, 2010
CL San Diego, CA
SP SPIE
DE Tri-component fiber; retro-reflection fiber; extrusion; refraction;
diffraction; optical properties
AB A retro-reflection, polymer fiber cross section is fabricated using a tri-component fiber extruder. The fiber cross section is comprised of a series of right angles. The right angles are retro-reflection features that run the entire length of the fiber. The retro-reflective features are formed by an extrusion process where the polymer fiber material is forced through a series of plates resulting in the cross section having the desired shape. Because the fiber cross sectional features form naturally by intersecting chords, the features scale naturally and have a tendency to maintain their form when the fiber is drawn to the desired diameter. Alternating the indices of refraction of the cross-sectional features allows for the realization of a number of unique and useful optical effects. The fiber cross section exhibits refraction and diffraction qualities as well as retro-reflection properties. As such, it exhibits prismatic and multiple-order diffraction interference. Hence, the fiber appears colorful when illuminated with white light. The colors can be controlled by a number of means: for example by the inclusion of dyes, nanoparticles, and by post-processing applications of thin films.
C1 [Aranda, Francisco J.; Perry, Jeffrey; Archambault, Deana; Belton, Lauren; Carlson, Joel; Ziegler, David; Kimball, Brian] USA, Natick Res Dev & Engn Ctr, Fiber & Mat Phys Div, Natick, MA 01760 USA.
RP Aranda, FJ (reprint author), USA, Natick Res Dev & Engn Ctr, Fiber & Mat Phys Div, Natick, MA 01760 USA.
NR 4
TC 2
Z9 2
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8277-8
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7781
AR 778107
DI 10.1117/12.859298
PG 8
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BTS02
UT WOS:000287926000005
ER
PT S
AU Gee, D
Liu, HJ
Currano, L
Yu, MA
AF Gee, Danny
Liu, Haijun
Currano, Luke
Yu, Miao
BE Fan, X
Xiao, H
Wang, A
TI Enhanced directional sensitivity of a biomimetic MEMS acoustic
localization sensor
SO PHOTONIC MICRODEVICES/MICROSTRUCTURES FOR SENSING II
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Photonic Microdevices/Microstructures for Sensing II
CY APR 07-08, 2010
CL Orlando, FL
SP SPIE
DE Ormia ochracea; MEMS; directional microphone; acoustic; sound source
localization
ID FLY ORMIA-OCHRACEA; EARS
AB We present an improved microfabricated sound localization sensor for unobtrusive surveillance systems inspired by the tympanic membranes of the parasitoid fly, Ormia ochracea. The device consists of two silicon diaphragms mechanically coupled by a suspended beam that amplifies the difference in time response, dependent on the incident angle of the sound source. Fabrication techniques were modified to reduce residual stresses and improve device uniformity. Enhanced acoustic cues for devices with central pivoting anchors were measured with laser Doppler vibrometry. Device responses to weak excitations demonstrated good sensitivity over environmental noise. An order of magnitude in time difference amplification was measured at 90 incident angles with a directional sensitivity of .39 mu s/ degree. These results provide a foundation for realizing an accurate bio-inspired MEMS directional microphone.
C1 [Gee, Danny; Currano, Luke] Army Res Lab, Adelphi, MD 20783 USA.
RP Gee, D (reprint author), Army Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
EM danny.gee@us.army.mil
RI Liu, Haijun/A-5060-2016; Yu, Miao/M-6252-2013
OI Yu, Miao/0000-0003-4180-5094
NR 7
TC 0
Z9 0
U1 1
U2 11
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8146-7
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7682
AR 76820N
DI 10.1117/12.850418
PG 8
WC Nanoscience & Nanotechnology; Remote Sensing; Optics
SC Science & Technology - Other Topics; Remote Sensing; Optics
GA BSS21
UT WOS:000285622100015
ER
PT J
AU Brandt, HE
AF Brandt, Howard E.
TI Riemannian curvature in the differential geometry of quantum computation
SO PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
LA English
DT Article; Proceedings Paper
CT International Conference on Frontiers of Quantum and Mesoscopic
Thermodynamics (FQMT '08)
CY JUL 28-AUG 02, 2008
CL Prague, CZECH REPUBLIC
DE Quantum computing; Quantum circuits; Riemannian geometry
AB in recent developments in the differential geometry of quantum computation, the quantum evolution is described in terms of the special unitary group SU(2(n)) of n-qubit unitary operators with unit determinant. To elaborate on one aspect of the methodology, the Riemann curvature and sectional curvature are explicitly derived using the Lie algebra su(2(n)). This is germane to investigations of the global characteristics of geodesic paths and minimal complexity quantum circuits. Published by Elsevier B.V.
C1 USA, Res Lab, Adelphi, MD USA.
RP Brandt, HE (reprint author), USA, Res Lab, Adelphi, MD USA.
EM hbrandt@arl.army.mil
NR 27
TC 6
Z9 7
U1 1
U2 5
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1386-9477
J9 PHYSICA E
JI Physica E
PD JAN
PY 2010
VL 42
IS 3
BP 449
EP 453
DI 10.1016/j.physe.2009.06.016
PG 5
WC Nanoscience & Nanotechnology; Physics, Condensed Matter
SC Science & Technology - Other Topics; Physics
GA 561DA
UT WOS:000274954500042
ER
PT S
AU Garrett, GA
Sampath, AV
Shen, H
Wraback, M
Sun, W
Shatalov, M
Hu, X
Yang, J
Bilenko, Y
Lunev, A
Shur, MS
Gaska, R
Grandusky, JR
Schowalter, LJ
AF Garrett, G. A.
Sampath, A. V.
Shen, H.
Wraback, M.
Sun, W.
Shatalov, M.
Hu, X.
Yang, J.
Bilenko, Y.
Lunev, A.
Shur, M. S.
Gaska, R.
Grandusky, J. R.
Schowalter, L. J.
BE Bhattacharya, P
Mishra, UK
Keller, S
Dora, Y
TI Evaluation of AlGaN-based deep ultraviolet emitter active regions by
temperature dependent time-resolved photoluminescence
SO PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 7,
NO 10
SE Physica Status Solidi C-Current Topics in Solid State Physics
LA English
DT Proceedings Paper
CT 36th International Symposium on Compound Semiconductors (ISCS)
CY AUG 30-SEP 02, 2009
CL Santa Barbara, CA
DE AlGaN; MBE; nanostructures; dislocations; defects; time-resolved
photoluminescence
AB Temperature dependent time-resolved photoluminescence is used to study the development of active regions for optoelectronic devices employing AlGaN nanostructures for deep-UV emission. The changing importance of dislocation versus point defects and their relationship to different forms of carrier localization are discussed. The results presented suggest that AlGaN nanostructure development for deep-UV emitters require both point defect/impurity suppression for improved efficiency and lower dislocation density for improved interface quality. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
C1 [Garrett, G. A.; Sampath, A. V.; Shen, H.; Wraback, M.] USA, Sensors & Elect Devices Directorate, Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
[Sun, W.; Shatalov, M.; Hu, X.; Yang, J.; Bilenko, Y.; Lunev, A.; Shur, M. S.; Gaska, R.] Sensor Elect Technol Inc, Columbia, SC 29209 USA.
[Grandusky, J. R.; Schowalter, L. J.] Crystal IS Inc, Green Island, NY 12183 USA.
RP Garrett, GA (reprint author), USA, Sensors & Elect Devices Directorate, Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
EM gregory.a.garrett@us.army.mil
RI Shur, Michael/A-4374-2016
OI Shur, Michael/0000-0003-0976-6232
NR 4
TC 8
Z9 8
U1 0
U2 12
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PAPPELALLEE 3, W-69469 WEINHEIM, GERMANY
SN 1862-6351
J9 PHYS STATUS SOLIDI C
PY 2010
VL 7
IS 10
DI 10.1002/pssc.200983906
PG 4
WC Physics, Applied
SC Physics
GA BZG63
UT WOS:000301542300009
ER
PT S
AU Metcalfe, GD
Shen, HE
Wraback, M
Hirai, A
Koblmuller, G
Gallinat, CS
Speck, JS
AF Metcalfe, Grace D.
Shen, Hongen
Wraback, Michael
Hirai, Asako
Koblmueller, Gregor
Gallinat, Chad S.
Speck, James S.
BE Bhattacharya, P
Mishra, UK
Keller, S
Dora, Y
TI Nitride semiconductors as terahertz sources based on spontaneous and
piezoelectric polarization
SO PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 7,
NO 10
SE Physica Status Solidi C-Current Topics in Solid State Physics
LA English
DT Proceedings Paper
CT 36th International Symposium on Compound Semiconductors (ISCS)
CY AUG 30-SEP 02, 2009
CL Santa Barbara, CA
DE InN/InGaN; quantum wells; MBE; THz radiation; strain-induced
piezoelectric fields
ID FIELD
AB We investigate the effects of internal polarization-related drift and diffusion on the emitted THz radiation from m-plane (1 (1) over bar 00), a-plane (11 (2) over bar0), and c-plane (0001) nitride semiconductors. Enhanced THz radiation is observed from c-plane InN/InGaN multiple quantum wells as compared to c-plane bulk InN at 800 nm excitation wavelength. THz generation in the quantum well structure is due to surface normal transport in electric fields due to the termination of spontaneous and piezoelectric polarization at the well/barrier interfaces. From high stacking fault density nonpolar GaN, we observe further enhanced THz emission as compared to stacking fault free m-plane GaN. THz generation from the high stacking fault density m-plane GaN is attributed to in-plane transport in built-in fields due to stacking fault-terminated internal polarization. A similar effect is observed in m-plane as well as a-plane InN. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
C1 [Metcalfe, Grace D.; Shen, Hongen; Wraback, Michael] USA, Res Lab, Sensors & Elect Devices Directorate, RDRL SEE M, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
[Hirai, Asako; Koblmueller, Gregor; Gallinat, Chad S.; Speck, James S.] Univ Calif, Dept Mat, Santa Barbara, CA 93106 USA.
[Koblmueller, Gregor] Tech Univ, Walter Schottky Inst, D-85748 Garching, Germany.
RP Metcalfe, GD (reprint author), USA, Res Lab, Sensors & Elect Devices Directorate, RDRL SEE M, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
EM grace.metcalfe@us.army.mil; pshen@arl.army.mil
RI Speck, James/H-5646-2011
NR 18
TC 2
Z9 2
U1 0
U2 16
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PAPPELALLEE 3, W-69469 WEINHEIM, GERMANY
SN 1862-6351
J9 PHYS STATUS SOLIDI C
PY 2010
VL 7
IS 10
DI 10.1002/pssc.200983855
PG 4
WC Physics, Applied
SC Physics
GA BZG63
UT WOS:000301542300025
ER
PT S
AU Shen, H
Garrett, GA
Wraback, M
Zhong, H
Tyagi, A
DenBaars, SP
Nakamura, S
Speck, JS
AF Shen, H.
Garrett, G. A.
Wraback, M.
Zhong, H.
Tyagi, A.
DenBaars, S. P.
Nakamura, S.
Speck, J. S.
BE Bhattacharya, P
Mishra, UK
Keller, S
Dora, Y
TI Polarization field crossover in semi-polar InGaN/GaN single quantum
wells
SO PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 7,
NO 10
SE Physica Status Solidi C-Current Topics in Solid State Physics
LA English
DT Proceedings Paper
CT 36th International Symposium on Compound Semiconductors (ISCS)
CY AUG 30-SEP 02, 2009
CL Santa Barbara, CA
DE InGaN/GaN; quantum wells; electroreflectance; polarization field
ID PIEZOELECTRIC COEFFICIENTS; ALUMINUM NITRIDE; GALLIUM NITRIDE;
SEMICONDUCTORS
AB We present an electroreflectance study of the polarization field in semi-polar (10 (1) over bar(1) over bar) and (11 (2) over bar2) oriented InGaN quantum wells (QW). For the (10 (1) over bar(1) over bar) sample, the flat-QW condition (the electric field in the QW is zero) is at a reverse bias voltage. For the (11 (2) over bar2) sample, the flat-QW condition is at a forward bias voltage larger than the turn on voltage of the diode. However, the flat-barrier condition (the electric field in the barrier region is zero) is at a forward bias voltage less than the turn on voltage of the diode. The flat-QW condition and the flat-barrier condition are determined by examining the zero-crossing and the Franz-Keldysh oscillations in the electroreflectance signal for (10 (1) over bar(1) over bar) and (11 (2) over bar2) InGaN QWs, respectively. From the corresponding bias voltages, we deduce the polarization field in the QWs and conclude that in the semi-polar InGaN/GaN QW there is a crossover angle between the polar and non-polar orientations where the polarization field vanishes. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
C1 [Shen, H.; Garrett, G. A.; Wraback, M.] USA, Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
[Zhong, H.; Tyagi, A.; DenBaars, S. P.; Nakamura, S.; Speck, J. S.] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA.
[Zhong, H.; Tyagi, A.; DenBaars, S. P.; Nakamura, S.; Speck, J. S.] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA.
RP Shen, H (reprint author), USA, Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
EM pshen@arl.army.mil
RI Speck, James/H-5646-2011
FU Solid State Lighting and Energy Center (SSLEC); DARPA VIGIL program
FX The work at UCSB was supported by the Solid State Lighting and Energy
Center (SSLEC) and by the DARPA VIGIL program.
NR 17
TC 2
Z9 2
U1 0
U2 4
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PAPPELALLEE 3, W-69469 WEINHEIM, GERMANY
SN 1862-6351
J9 PHYS STATUS SOLIDI C
PY 2010
VL 7
IS 10
DI 10.1002/pssc.200983893
PG 4
WC Physics, Applied
SC Physics
GA BZG63
UT WOS:000301542300006
ER
PT J
AU Vanadit-Ellis, W
Davis, L
Sharp, M
AF Vanadit-Ellis, W.
Davis, L.
Sharp, M.
BE Springman, S
Laue, J
Seward, L
TI Physical modelling of embankment vulnerability
SO PHYSICAL MODELLING IN GEOTECHNICS, VOLS. 1 AND 2
LA English
DT Proceedings Paper
CT 7th International Conference on Physical Modelling in Geotechnics
(ICPMG)
CY JUN 28-JUL 01, 2010
CL ETH Zurich, Zurich, SWITZERLAND
SP Int Soc Soil Mech & Geotechnical Engn, Tech Comm 2 Phys Modelling Geotech, Actidyn, Broadbent, Solexperts, Tekscan, Kanton Zurich, Stadt Zurich
HO ETH Zurich
AB Water-retaining embankment structures, such as earthen dams, rockfill dams, and river levees, are important components of any country's infrastructure. The breaching of one of these structures when water levels are high could conceivably lead to their complete collapse by erosion from water flow through the breach. Possible consequences could be catastrophic flooding of farmlands and urban areas, extensive casualties due to the lack of warning, and in some locations a long-term loss of hydroelectric power and river navigation. Previous centrifuge studies of cratering effects indicated that many issues related to this phenomenon could be addressed. The Engineer Research and Development Center (ERDC) performed a series of tests with the goal of developing an improved damage prediction model for embankments subjected to explosive attacks.
C1 [Vanadit-Ellis, W.; Davis, L.; Sharp, M.] Engn Res & Dev Ctr, Vicksburg, MS 39180 USA.
RP Vanadit-Ellis, W (reprint author), Engn Res & Dev Ctr, Vicksburg, MS 39180 USA.
NR 7
TC 0
Z9 0
U1 0
U2 0
PU CRC PRESS-TAYLOR & FRANCIS GROUP
PI BOCA RATON
PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA
BN 978-0-203-84262-1
PY 2010
BP 1215
EP 1220
PG 6
WC Geosciences, Multidisciplinary
SC Geology
GA BB7LF
UT WOS:000345701300186
ER
PT S
AU Liu, ZJ
Liu, LB
Barrowes, B
AF Liu, Zijian
Liu, Lanbo
Barrowes, Benjamin
GP Electromagnet Acad
TI Application of Alternating Direction Implicit (ADI) Algorithm to
Staggered-grid PSTD Modeling of Electromagnetic Waves
SO PIERS 2010 CAMBRIDGE: PROGRESS IN ELECTROMAGNETICS RESEARCH SYMPOSIUM
PROCEEDINGS, VOLS 1 AND 2
SE Progress in Electromagnetics Research Symposium
LA English
DT Proceedings Paper
CT Progress in Electromagnetics Research Symposium
CY JUL 05-08, 2010
CL Cambridge, MA
SP Schlumberger-Doll Res, MIT Ctr Electromagnet Theory & Applicat/Res Lab Elect, Zhejiang Univ, Electromagnet Acad
ID MAXWELLS EQUATIONS
AB By applying the fast Fourier transform (FFT) and inverse transform to represent the spatial derivatives, the pseudo-spectral time-domain (PSTD) method has achieved a spatial grid of only two points per wavelength while maintaining a high accuracy. Its computational speed can be further accelerated by applying alternating-direction implicit (ADI), which makes PSTD works even when the time step exceeds the maximum time step allowed under the Courant-Friedrich-Levy (CFL) condition. However, due to the unsuitability of FFT on non-continuou condition, conventional ADI-PSTD turns to be unstable in media with high property contrast. We have expanded current ADI-PSTD into staggered-grid ADI-PSTD. After applying the staggered-grid approach into our algorithm by shifting the spatial derivatives halfway between 2 adjacent nodes, the stability of the differentiation operators is enhanced. We will discuss the staggered-grid ADI-PSTD method in detail and apply it to the simulation of a half-space model. The analysis and discussion of the results show its advantages and further potential.
C1 [Liu, Zijian; Liu, Lanbo] Univ Connecticut, Dept Biomed Engn, Storrs, CT 06269 USA.
[Liu, Lanbo; Barrowes, Benjamin] USACE Engn Res & Dev Ctr, Cold Reg Res & Engn Lab, Hanover, NH 03755 USA.
RP Liu, ZJ (reprint author), Univ Connecticut, Dept Biomed Engn, Storrs, CT 06269 USA.
NR 9
TC 0
Z9 0
U1 0
U2 0
PU ELECTROMAGNETICS ACAD
PI CAMBRIDGE
PA 777 CONCORD AVENUE, STE 207, CAMBRIDGE, MA 02138 USA
SN 1559-9450
BN 978-1-934142-14-1
J9 PR ELECTROMAGN RES S
PY 2010
BP 125
EP +
PG 2
WC Engineering, Electrical & Electronic; Physics, Applied
SC Engineering; Physics
GA BAT93
UT WOS:000305490800024
ER
PT S
AU Liu, ZJ
Liu, LB
Barrowes, B
AF Liu, Zijian
Liu, Lanbo
Barrowes, Benjamin
GP Electromagnet Acad
TI The Application of the Hilbert-Huang Transform in Through-wall Life
Detection with UWB Impulse Radar
SO PIERS 2010 CAMBRIDGE: PROGRESS IN ELECTROMAGNETICS RESEARCH SYMPOSIUM
PROCEEDINGS, VOLS 1 AND 2
SE Progress in Electromagnetics Research Symposium
LA English
DT Proceedings Paper
CT Progress in Electromagnetics Research Symposium
CY JUL 05-08, 2010
CL Cambridge, MA
SP Schlumberger-Doll Res, MIT Ctr Electromagnet Theory & Applicat/Res Lab Elect, Zhejiang Univ, Electromagnet Acad
AB Hilbert-Huang Transformation (HHT) is a powerful tool for nonlinear and non-stationary data analysis. In this paper, a dataset using an ultra-wide (UWB) impulse radar system with central frequency of 1 GHz was collected for life motion detection behind a cinder block wall. To extract the information of life motions such as breathing and heartbeats from the raw data, we first applied the empirical mode decomposition (EMD), the first step of HHT to decompose the signal (background signal included) into a family of the intrinsic mode functions (IMF's). We then apply Hilbert spectral analysis (HSA) to get the frequency spectra of different IMF's. After dividing by the spectrum of the background radar record (equivalent to de-convolving the background record in the time domain), we found that breathing appear as a spectral peak at 0.2-0.4 Hz and heart beating appears as 1.0-1.2 Hz. This is coinciding with real condition. Our preliminary results show that the HHT technique provides significant assistance in signal processing for the detection of human targets behind opaque obstacles.
C1 [Liu, Zijian; Liu, Lanbo] Univ Connecticut, Sch Engn, Storrs, CT 06269 USA.
[Liu, Lanbo; Barrowes, Benjamin] USACE Engn Res & Dev Ctr, Cold Reg Res & Engn Lab, Hanover, NH 03755 USA.
RP Liu, ZJ (reprint author), Univ Connecticut, Sch Engn, Storrs, CT 06269 USA.
NR 6
TC 0
Z9 0
U1 0
U2 3
PU ELECTROMAGNETICS ACAD
PI CAMBRIDGE
PA 777 CONCORD AVENUE, STE 207, CAMBRIDGE, MA 02138 USA
SN 1559-9450
BN 978-1-934142-14-1
J9 PR ELECTROMAGN RES S
PY 2010
BP 937
EP +
PG 2
WC Engineering, Electrical & Electronic; Physics, Applied
SC Engineering; Physics
GA BAT93
UT WOS:000305490800200
ER
PT S
AU Osgood, R
Giardini, S
Carlson, J
Kimball, B
Hoey, M
Fernandes, GE
Liu, ZJ
Kim, JH
Xu, JM
Buchwald, W
AF Osgood, Richard, III
Giardini, Stephen
Carlson, Joel
Kimball, Brian
Hoey, Megan
Fernandes, Gustavo E.
Liu, Zhijun
Kim, Jin Ho
Xu, Jimmy
Buchwald, Walter
BE Stockman, MI
TI Coupled, large-area gold nanowire arrays for nanorectenna energy
conversion
SO PLASMONICS: METALLIC NANOSTRUCTURES AND THEIR OPTICAL PROPERTIES VIII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Plasmonics: Metallic Nanostructures and Their Optical
Properties VIII
CY AUG 01-05, 2010
CL San Diego, CA
SP SPIE
DE Nanoantennas; nanodiodes; periodic metallic nanostructures; energy
conversion; rectification; NIR/visible spectrum; optical properties
AB Arrays of "nanorectennas", consisting of nanodiode-coupled nanoantennas, are of interest for converting visible/near-infrared (vis/nir) light into useful direct current. For efficient energy conversion, the nanoantenna array must have a high absorbance (for different polarizations and angles of incidence) and a large fill factor; i.e., the nanoantennas must be tightly packed together. We fabricate hexagonal, close-packed (similar to 100 nm nearest neighbor separation), large area (similar to 1 cm(2)) arrays of vertical (e. g., perpendicular to the substrate) Au nanowires (length < 1 mu m) on Si, by electrochemically depositing gold into a porous aluminum oxide template (a potentially inexpensive process scalable to large dimensions). Coupling of these nanowires causes a considerable blue-shift of the plasmonic resonance of a single Au nanowire when illuminated by p-polarized light from the infrared to the blue-green portion of the visible spectrum (similar to the s polarization resonance), enabling a nanorectenna with tuned response in the vis/nir regime, whose absorption is roughly polarization-independent and relatively insensitive to angle of incidence. We measure the off-normal reflectivity of these arrays, compare with simulations, and present experimental data on rectification and power generation in the attached Au-Si Schottky nanodiodes.
C1 [Osgood, Richard, III; Giardini, Stephen; Carlson, Joel; Kimball, Brian; Hoey, Megan] USA, Natick Res Dev & Engn Ctr, Nanomat Sci Team, Natick, MA 01760 USA.
RP Osgood, R (reprint author), USA, Natick Res Dev & Engn Ctr, Nanomat Sci Team, Natick, MA 01760 USA.
NR 7
TC 1
Z9 1
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-253-2
J9 PROC SPIE
PY 2010
VL 7757
AR 775715
DI 10.1117/12.860174
PG 14
WC Chemistry, Physical; Nanoscience & Nanotechnology; Optics
SC Chemistry; Science & Technology - Other Topics; Optics
GA BSU51
UT WOS:000285828300012
ER
PT J
AU Pyo, J
Pasquina, PF
DeMarco, M
Wallach, R
Teodorski, E
Cooper, RA
AF Pyo, Jay
Pasquina, Paul F.
DeMarco, Michael
Wallach, Robert
Teodorski, Emily
Cooper, Rory A.
TI Upper Limb Nerve Entrapment Syndromes in Veterans With Lower Limb
Amputations
SO PM&R
LA English
DT Article
AB Objective: To examine the prevalence and severity of upper limb entrapment syndromes in a sample of veterans with lower limb amputations.
Design: A descriptive survey, pilot study.
Setting: 2008 National Disabled Veterans Winter Sports Clinic.
Participants: Twenty participants with various lower limb amputations.
Methods: All study participants completed a questionnaire that included symptoms of both upper limbs, medical history, time since amputation, medication history, use of assistive technology, and wheelchair characteristics. A physical examination and electrodiagnostic testing were then performed on each participant. The physical examination included an assessment of bilateral upper limb weakness or sensory abnormalities, thenar/hypothenar atrophy, deep tendon reflexes, Tinel test of the wrist and elbow, and the Phalen maneuver. All nerve conduction studies were performed by an American Board of Electrodiagnostic Medicine-certified physiatrist.
Outcome Measures: Correlation between symptoms, examination findings, and electrodiagnostic findings with the participant's demographic data in the questionnaire.
Results: Twenty participants (19 men and 1 woman) were enrolled in the study, with a total of 38 upper limbs evaluated. The mean age of the study population was 59 +/- 13 years, with an average of 23 years since the amputation. Sixteen (80%) of 20 participants had electrodiagnostic findings consistent with median neuropathy across the wrist (26/38 affected limbs, 6 participants with unilateral and 10 with bilateral findings), and 14 (70%) of 20 participants had ulnar entrapment neuropathy across the elbow (22/38 affected limbs, 6 participants with unilateral and 8 with bilateral findings). Several participants (6 of 20, 30%) were found to have electrodiagnostic evidence of ulnar entrapment neuropathy across the wrist (10 of 38 affected limbs, 2 participants unilateral and 4 bilateral findings).
Conclusion: A high number of veterans with lower limb amputations presented with upper limb nerve entrapment syndromes. Careful attention to these nerve entrapment syndromes in lower limb amputees is necessary because the symptoms may be confounded by other chronic pain-related disorders. PM R 2010;2:14-22
C1 [Pyo, Jay; Pasquina, Paul F.; DeMarco, Michael] Walter Reed Army Med Ctr, Dept Orthoped & Rehabil, Phys Med & Rehabil Serv, Washington, DC 20307 USA.
[Wallach, Robert] Madigan Army Med Ctr, Dept Orthoped, Phys Med & Rehabil Serv, Tacoma, WA 98431 USA.
[Teodorski, Emily; Cooper, Rory A.] Pittsburgh Healthcare Syst, Dept Vet Affairs, Human Engn Res Labs, Pittsburgh, PA USA.
[Teodorski, Emily; Cooper, Rory A.] Univ Pittsburgh, Dept Rehabil Sci & Technol, Pittsburgh, PA USA.
RP Pyo, J (reprint author), Walter Reed Army Med Ctr, Dept Orthoped & Rehabil, Phys Med & Rehabil Serv, 6900 Georgia Ave NW, Washington, DC 20307 USA.
EM pyoj78@gmail.com
FU U.S. Army Medical Research Acquisition Activity (USAMRAA)
[W81XWH-08-1-0302]; Human Engineering Research Laboratories, VA
Pittsburgh Healthcare
FX This research was funded by the U.S. Army Medical Research Acquisition
Activity (USAMRAA), Grant# W81XWH-08-1-0302 and was supported by
resources at the Human Engineering Research Laboratories, VA Pittsburgh
Healthcare.
NR 14
TC 4
Z9 4
U1 0
U2 1
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 1934-1482
J9 PM&R
JI PM&R
PD JAN
PY 2010
VL 2
IS 1
BP 14
EP 22
DI 10.1016/j.pmrj.2009.10.002
PG 9
WC Rehabilitation; Sport Sciences
SC Rehabilitation; Sport Sciences
GA V23RE
UT WOS:000208359100004
PM 20129508
ER
PT S
AU Felton, M
Gurton, KP
Pezzaniti, JL
Chenault, DB
Roth, LE
AF Felton, M.
Gurton, K. P.
Pezzaniti, J. L.
Chenault, D. B.
Roth, L. E.
BE Chenault, DB
Goldstein, DH
TI Comparison of the inversion periods for MidIR and LWIR polarimetric and
conventional thermal imagery
SO POLARIZATION: MEASUREMENT, ANALYSIS, AND REMOTE SENSING IX
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Polarization - Measurement, Analysis, and Remote Sensing
IX
CY APR 07-08, 2010
CL Orlando, FL
SP SPIE
DE Polarimetric imaging; thermal imaging; microbolometer; target contrast;
inversion periods
AB We report the results of a diurnal study in which radiometrically calibrated polarimetric and conventional thermal imagery are recorded in the MidIR and LWIR to identify and compare the respective time periods in which minimum target contrast is achieved. The MidIR polarimetric sensor is based on a division-of-aperture approach and has a 640x512 InSb focal-plane array, while the LWIR polarimetric sensor uses a spinning achromatic retarder to perform the polarimetric filtering and has a 324x256 microbolometer focal-plane array. The images used in this study include the S(0) and S(1) Stokes images of a scene containing a military vehicle and the natural background. In addition, relevant meteorological parameters measured during the test period include air temperature, ambient loading in the LWIR, relative humidity, cloud cover, height, and density. The data shows that the chief factors affecting polarimetric contrast in both wavebands are the amount of thermal emission from the objects in the scene and the abundance of MidIR and LWIR sources in the optical background. In particular, it has been observed that the MidIR polarimetric contrast was positively correlated to the presence of MidIR sources in the optical background, while the LWIR polarimetric contrast was negatively correlated to the presence of LWIR sources in the optical background.
C1 [Felton, M.; Gurton, K. P.] USA, Res Lab, Adelphi, MD 20783 USA.
RP Felton, M (reprint author), USA, Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
EM mfelton@arl.army.mil
NR 10
TC 1
Z9 1
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8136-8
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7672
AR 76720R
DI 10.1117/12.850264
PG 11
WC Engineering, Electrical & Electronic; Instruments & Instrumentation;
Remote Sensing; Optics
SC Engineering; Instruments & Instrumentation; Remote Sensing; Optics
GA BSS36
UT WOS:000285627100021
ER
PT S
AU Gurton, K
Felton, M
Mack, R
LeMaster, D
Farlow, C
Kudenov, M
Pezzaniti, L
AF Gurton, Kristan
Felton, Melvin
Mack, Robert
LeMaster, Daniel
Farlow, Craig
Kudenov, Michael
Pezzaniti, Larry
BE Chenault, DB
Goldstein, DH
TI MidIR and LWIR polarimetric sensor comparison study
SO POLARIZATION: MEASUREMENT, ANALYSIS, AND REMOTE SENSING IX
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Polarization - Measurement, Analysis, and Remote Sensing
IX
CY APR 07-08, 2010
CL Orlando, FL
SP SPIE
ID MUELLER MATRIX; ROC ANALYSIS
AB We present a comparative study involving five distinctly different polarimetric imaging platforms that are designed to record calibrated Stokes images (and associated polarimetric products) in either the MidIR or LWIR spectral regions. The data set used in this study was recorded during April 14-18, 2008, at the Russell Tower Measurement Facility, Redstone Arsenal, Huntsville, AL. Four of the five camera systems were designed to operate in the LWIR (approx. 8-12 mu m), and used either cooled mercury cadmium telluride (MCT) focal-plane-arrays (FPA), or a near-room temperature microbolometer. The lone MidIR polarimetric sensor was based on a liquid nitrogen (LN2) cooled indium antimonide (InSb) FPA, resulting in an approximate wavelength response of 3-5 mu m. The selection of cameras was comprised of the following optical designs: a LWIR "super-pixel," or division-of-focal plane (DoFP) sensor; two LWIR spinning-achromatic-retarder (SAR) based sensors; one LWIR division-of-amplitude (DoAM) sensor; and one MidIR division-of-aperture (DoA) sensor. Cross-sensor comparisons were conducted by examining calibrated Stokes images (e. g., S0, S1, S2, and degree-of-linear polarization (DOLP)) recorded by each sensor for a given target at approximately the same test periods to ensure that data sets were recorded under similar atmospheric conditions. Target detections are applied to the image set for each polarimetric sensor for further comparison, i.e., conventional receiver operating characteristic (ROC) curve analysis and an effective contrast ratio are considered.
C1 [Gurton, Kristan; Felton, Melvin] USA, Res Lab, Adelphi, MD 20783 USA.
RP Gurton, K (reprint author), USA, Res Lab, Adelphi, MD 20783 USA.
NR 14
TC 4
Z9 4
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8136-8
J9 PROC SPIE
PY 2010
VL 7672
AR 767205
DI 10.1117/12.850341
PG 14
WC Engineering, Electrical & Electronic; Instruments & Instrumentation;
Remote Sensing; Optics
SC Engineering; Instruments & Instrumentation; Remote Sensing; Optics
GA BSS36
UT WOS:000285627100005
ER
PT B
AU Blank, S
AF Blank, Stephen
BE Galeotti, M
TI Russia's Unending Quest for Security
SO POLITICS OF SECURITY IN MODERN RUSSIA
SE Post-Soviet Politics
LA English
DT Article; Book Chapter
C1 US Army War Coll, Strateg Studies Inst, Carlisle, PA 17013 USA.
RP Blank, S (reprint author), US Army War Coll, Strateg Studies Inst, Carlisle, PA 17013 USA.
NR 0
TC 1
Z9 1
U1 0
U2 0
PU ASHGATE PUBLISHING LTD
PI ALDERSHOT
PA GOWER HOUSE, CROFT ROAD, ALDERSHOT GU11 3HR, ENGLAND
BN 978-0-7546-9172-3; 978-0-7546-7408-5
J9 POST SOV POLIT
PY 2010
BP 171
EP 193
PG 23
WC Political Science
SC Government & Law
GA BA2UT
UT WOS:000333923500010
ER
PT S
AU Luo, Y
Guo, J
Wang, C
Choi, KY
Chu, D
AF Luo, Y.
Guo, J.
Wang, C.
Choi, K. Y.
Chu, D.
BE Gasteiger, HA
Weber, A
Strasser, P
Edmundson, M
Lamy, C
Darling, R
Uchida, H
Schmidt, TJ
Shirvanian, P
Buchi, FN
Mantz, R
Zawodzinski, T
Ramani, V
Fuller, T
Inaba, M
Jones, D
Narayanan, SR
TI High Molecular Weight Copolymer Alkaline Fuel Cell Membrane via
Miniemulsion Polymerization
SO POLYMER ELECTROLYTE FUEL CELLS 10, PTS 1 AND 2
SE ECS Transactions
LA English
DT Proceedings Paper
CT 10th Polymer Electrolyte Fuel Cells Symposium (PEFC) Conducted Under the
Auspices of the 218th Meeting of the Electrochemical-Society (ECS)
CY OCT, 2010
CL Las Vegas, NV
SP Electrochem Soc (ECS), Energy Technol (ETD), Phys & Analyt Electrochem (PAED), Battery (BATT), Ind Electrochem & Electrochem Engn, Asahi Kasei E-Mat Corp, Ion Power Inc, UTC Power Corp, Umicore, Tokuyama Corp, Toyota Motor Eng & Mfg N Amer, Pine Res Instruments, Tanaka Kikinzoku Kogyo K K
ID EXCHANGE MEMBRANES
AB A novel copolymer, named QPMBV (quaternized poly (methyl methacrylate-co-butyl acrylate-co-vinyl benzylchloride) (PMBV)) has been synthesized as the solid electrolyte for alkaline fuel cells. Miniemulsion polymerization has been used to achieve high molecular weight of PMBV (1,020,580 g/mol) to enhance mechanical property. GPC (Gel permeation chromatography), H-1-NMR (Proton nuclear magnetic resonance), and DSC (Differential scanning calorimetry) techniques were employed to characterize the copolymer. Fuel cell performance tests showed that a peak power of 25mW/cm(2) at the current of 40mA/cm(2) can be achieved in the relative humidity of 80% at 60 degrees C.
C1 [Luo, Y.; Guo, J.; Wang, C.; Choi, K. Y.] Univ Maryland, Dept Chem & Biomol Engn, College Pk, MD 20742 USA.
[Chu, D.] US Army Res Lab, Ade Iphi, MD 20783 USA.
RP Luo, Y (reprint author), Univ Maryland, Dept Chem & Biomol Engn, College Pk, MD 20742 USA.
FU Office of Naval Research [N000140810717]; Army Research Lab
[W911NF0920007]; Army Research Office [W911NF0910028]
FX The authors are grateful for the supports of this project by Office of
Naval Research (N000140810717), Army Research Lab(W911NF0920007), and
Army Research Office (W911NF0910028).
NR 12
TC 2
Z9 2
U1 0
U2 0
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-56677-820-6
J9 ECS TRANSACTIONS
PY 2010
VL 33
IS 1
BP 1893
EP +
DI 10.1149/1.3484681
PG 2
WC Electrochemistry; Energy & Fuels; Polymer Science
SC Electrochemistry; Energy & Fuels; Polymer Science
GA BDH94
UT WOS:000313331100186
ER
PT S
AU Morefield, SW
Weiss, CA
Malone, PG
Hock, VF
AF Morefield, Sean W.
Weiss, Charles A., Jr.
Malone, Philip G.
Hock, Vincent F.
BE Vafai, K
TI Infilling of Pore Spaces in Mortar Using Electrically-Driven Solution
Transport Systems
SO POROUS MEDIA AND ITS APPLICATIONS IN SCIENCE, ENGINEERING AND INDUSTRY
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 3rd International Conference on Porous Media and its Applications in
Science, Engineering and Industry
CY JUN 20-25, 2010
CL Montecatini, ITALY
SP Natl Sci Fdn, Engn Conferences Int
DE electrophoresis; calcite; vaterite; aragonite; cement paste
ID COMPRESSIVE STRENGTH; POROSITY; CEMENT
AB It has been widely established that all types of conventional concrete can be strengthened by reducing the porosity of the concrete matrix. Attempts to infill the pores by converting reactive phases such as calcium hydroxide into calcium carbonate have been partly successful, but the success of this approach has been limited by the amount of Ca(OH)(2) produced in the hydration of the concrete and by the positions of the new crystalline phases that are formed. These limitations can be overcome by using a combination of electrophoresis to move particles into concrete pores and the use of ion transport to move new dissolved reactants into the concrete mass. Bench scale experiments have demonstrated that significant density and strength increases can be obtained by electrophoretically moving seed crystals of selected mineral phases such as calcite, aragonite, or vaterite into the larger pores in concrete and then using a low-voltage DC current to migrate in calcium and carbonate ions to grow the selected crystalline phases in masses sufficient to fill up both large and small pores. This can be done in such a way as to leave even the reactive phases such as Ca(OH)(2) unaltered. The bulk pH of the concrete is not reduced in the mineralization process as it would be in simple carbonation. Pore in-filling using electrophoretic and electro-transport systems can potentially be of use in creating very high-density concrete for concrete pipes, and panels with lower porosity than can be obtained using carbonation or pressure infiltration.
C1 [Morefield, Sean W.; Weiss, Charles A., Jr.; Malone, Philip G.; Hock, Vincent F.] USA, Engineer Res & Dev Ctr, Vicksburg, MS 39180 USA.
RP Morefield, SW (reprint author), USA, Engineer Res & Dev Ctr, Vicksburg, MS 39180 USA.
NR 15
TC 1
Z9 1
U1 1
U2 4
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0803-6
J9 AIP CONF PROC
PY 2010
VL 1254
BP 266
EP 271
DI 10.1063/1.3453822
PG 6
WC Physics, Applied
SC Physics
GA BRL12
UT WOS:000282998600043
ER
PT B
AU Murin, S
Bilello, K
Moores, L
Holley, A
AF Murin, Susan
Bilello, Kathryn
Moores, Lisa
Holley, Aaron
BE Legato, MJ
TI Gender Issues in Venous Thromboembolism
SO PRINCIPLES OF GENDER-SPECIFIC MEDICINE, 2ND EDITION
LA English
DT Article; Book Chapter
ID DEEP-VEIN THROMBOSIS; HORMONE REPLACEMENT THERAPY; FACTOR-V-LEIDEN;
SUSPECTED PULMONARY-EMBOLISM; ACTIVATED PROTEIN-C; MOLECULAR-WEIGHT
HEPARIN; ESTROGEN PLUS PROGESTIN; 3RD-GENERATION ORAL-CONTRACEPTIVES;
MULTIPLE THROMBOPHILIC DEFECTS; SYSTEMIC-LUPUS-ERYTHEMATOSUS
C1 [Murin, Susan] Div Pulm Crit Care & Sleep Med, Sacramento, CA USA.
[Murin, Susan] Univ Calif Davis Sch Med, Dept Internal Med, Sacramento, CA USA.
[Bilello, Kathryn] Cent Calif Fac Med Grp, Fresno, CA USA.
[Bilello, Kathryn] Univ Calif San Francisco, Fresno Program, Fresno, CA USA.
[Moores, Lisa] Uniformed Serv Univ Hlth Sci, F Edward Hebert Sch Med, Bethesda, MD 20814 USA.
[Holley, Aaron] Walter Reed Army Med Ctr, Div Pulm Crit Care & Sleep Med, Dept Internal Med, Washington, DC 20307 USA.
RP Murin, S (reprint author), Div Pulm Crit Care & Sleep Med, Sacramento, CA USA.
NR 175
TC 0
Z9 0
U1 0
U2 0
PU ACADEMIC PRESS LTD-ELSEVIER SCIENCE LTD
PI LONDON
PA 24-28 OVAL ROAD, LONDON NW1 7DX, ENGLAND
BN 978-0-08-092150-1; 978-0-12-374271-1
PY 2010
BP 225
EP 243
DI 10.1016/B978-0-12-374271-1.00020-4
PG 19
WC Medicine, General & Internal
SC General & Internal Medicine
GA BEO92
UT WOS:000317610700026
ER
PT J
AU Grantham, MAM
Gaston, JR
Letowski, TR
AF Grantham, Marjorie A. M.
Gaston, Jeremy R.
Letowski, Tomasz R.
GP Int Inst Acoust & Vibrat
TI AUDITORY RECOGNITION OF THE DIRECTION OF WALKING
SO PROCEEDINGS OF THE 17TH INTERNATIONAL CONGRESS ON SOUND AND VIBRATION
LA English
DT Proceedings Paper
CT 17th International Congress on Sound and Vibration (ICSV)
CY JUL 18-22, 2010
CL Cairo, EGYPT
SP Int Inst Acoust & Vibrat, Acoust Soc Egypt, Ain Shams Univ, Nile Univ, Int Union Theoret & Appl Mech, Amer Soc MechEngineers Int, Inst Mech Engineers
ID AUDIBLE MOVEMENT ANGLE; HORIZONTAL PLANE; SOUND SOURCES; PERCEPTION;
MOTION; DISCRIMINATION; FREQUENCY; VELOCITY; CUES
AB The ability to hear an enemy is a matter of battlefield survivability for a Soldier. Soldiers must often listen for the enemy in environments where there is little or no visual information available, for example, at night or in inclement weather. Important signatures of an approaching enemy include footsteps. The goal of the present study was to investigate how well listeners can auditorily identify the direction of approaching footsteps moving toward them. The main difficulty of this listening task is that both direction and distance information change continuously and are confounded by a continuously changing environmental background. The results of this study will be used to discuss listener performance limits, in addition to future research to support training for listeners with poor auditory motion recognition skills.
C1 [Grantham, Marjorie A. M.; Gaston, Jeremy R.; Letowski, Tomasz R.] US Army Res Lab, Aberdeen Proving Ground, MD 21005 USA.
RP Grantham, MAM (reprint author), US Army Res Lab, Aberdeen Proving Ground, MD 21005 USA.
EM tom.letowski@us.army.mil
NR 15
TC 0
Z9 0
U1 0
U2 0
PU INT INST ACOUSTICS & VIBRATION
PI AUBURN
PA AUBURN UNIV, MECHANICAL ENGINEERING DEPT, 270 ROSS HALL, AUBURN, AL
36849 USA
PY 2010
PG 8
WC Acoustics; Engineering, Mechanical
SC Acoustics; Engineering
GA BG8NB
UT WOS:000392489200124
ER
PT J
AU Letowski, T
Amrein, B
Ericson, M
AF Letowski, Tomasz
Amrein, Bruce
Ericson, Mark
GP Int Inst Acoust & Vibrat
TI ENVIRONMENT FOR AUDITORY RESEARCH: DESIGN PRINCIPLES AND CAPABILITIES
SO PROCEEDINGS OF THE 17TH INTERNATIONAL CONGRESS ON SOUND AND VIBRATION
LA English
DT Proceedings Paper
CT 17th International Congress on Sound and Vibration (ICSV)
CY JUL 18-22, 2010
CL Cairo, EGYPT
SP Int Inst Acoust & Vibrat, Acoust Soc Egypt, Ain Shams Univ, Nile Univ, Int Union Theoret & Appl Mech, Amer Soc MechEngineers Int, Inst Mech Engineers
AB The Environment for Auditory Research (EAR) is a new U.S. Army research facility dedicated to spatial perception and speech communication research. The EAR is comprised of four indoor research spaces (Sphere Room, Dome Room, Distance Hall, and Listening Laboratory), one outdoor research space (OpenEAR), and one common control center (Control Room) that permits concurrent execution of three independent studies. The facility offers various acoustic test environments ranging from anechoic, through various simulated, to real field environments. The acoustic and audio capabilities of the EAR support a wide range of experimental studies, and the facility is available to both government and non-government researchers to conduct their own and joint research studies. This paper presents the design principles used in developing the EAR and the physical properties of the completed EAR facility. The goal of the paper is to present basic technical information about the facility to the research community that may consider conducting research studies in the EAR.
C1 [Letowski, Tomasz; Amrein, Bruce; Ericson, Mark] US Army, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
RP Letowski, T (reprint author), US Army, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
EM tom.letowski@us.army.mil
NR 6
TC 0
Z9 0
U1 0
U2 0
PU INT INST ACOUSTICS & VIBRATION
PI AUBURN
PA AUBURN UNIV, MECHANICAL ENGINEERING DEPT, 270 ROSS HALL, AUBURN, AL
36849 USA
PY 2010
PG 8
WC Acoustics; Engineering, Mechanical
SC Acoustics; Engineering
GA BG8NB
UT WOS:000392489200093
ER
PT J
AU Scanlon, MV
AF Scanlon, Michael V.
GP Int Inst Acoust & Vibrat
TI ACOUSTIC LOCALIZATION USING A SINGLE MICROPHONE WITH MULTIPLE INLET
CHANNELS FORMING A COMPOSITE WAVEFORM
SO PROCEEDINGS OF THE 17TH INTERNATIONAL CONGRESS ON SOUND AND VIBRATION
LA English
DT Proceedings Paper
CT 17th International Congress on Sound and Vibration (ICSV)
CY JUL 18-22, 2010
CL Cairo, EGYPT
SP Int Inst Acoust & Vibrat, Acoust Soc Egypt, Ain Shams Univ, Nile Univ, Int Union Theoret & Appl Mech, Amer Soc MechEngineers Int, Inst Mech Engineers
AB A unique electromechanical system has been developed for determining the direction of arrival of acoustic waves using a single microphone within a multiple-channel inlet structure. This sensor configuration enables the approach direction of an acoustic wave to be determined by using multiple inlet channels of incrementally increasing lengths, which are also separated uniformly by angle. Each inlet channel's port samples the incoming acoustic planar wave-front as it passes over the device to produce individually-sampled waveforms that travel through their respective channels. These multiple channels containing the spatially sampled waveforms combine within a mechanical summation chamber through superposition to create a composite waveform that is sensed by the single microphone. This composite waveform is then analyzed using resulting timing features to determine the approach direction of the acoustic wave relative to the channel-array orientation. A two-microphone approach to this system has also been tested to allow comparisons between a passively sampled composite waveform and an unmodified originating waveform. Experimental results from a weapon's muzzle-blast will be presented. By using this described sensing method, system complexity and cost may be reduced when compared to conventional multi-channel sensor systems used to detect and localize on sniper shock waves, muzzle blasts, mortar/missile launches, and explosions. These systems typically use time-difference-of-arrival from multiple distributed acoustic sensors to determine azimuthal arrival direction. Systems with many microphones can result in increased cost and power requirements, precise inter-channel sample alignment, matched phase and amplitude specs for reduced signal correlation variations, and accurate placement of the microphones.
C1 [Scanlon, Michael V.] US Army Res Lab, RDRL SES P, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
RP Scanlon, MV (reprint author), US Army Res Lab, RDRL SES P, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
EM michael.scanlon@us.army.mil
NR 1
TC 0
Z9 0
U1 0
U2 0
PU INT INST ACOUSTICS & VIBRATION
PI AUBURN
PA AUBURN UNIV, MECHANICAL ENGINEERING DEPT, 270 ROSS HALL, AUBURN, AL
36849 USA
PY 2010
PG 8
WC Acoustics; Engineering, Mechanical
SC Acoustics; Engineering
GA BG8NB
UT WOS:000392489200125
ER
PT J
AU Bash, M
Pekarek, S
Sudhoff, S
Whitmore, J
Frantzen, M
AF Bash, Michelle
Pekarek, Steve
Sudhoff, Scott
Whitmore, Jennifer
Frantzen, Michelle
GP IEEE
TI A Comparison of Permanent Magnet and Wound Rotor Synchronous Machines
for Portable Power Generation
SO PROCEEDINGS OF THE 2010 POWER AND ENERGY CONFERENCE AT ILLINOIS (PECI)
LA English
DT Proceedings Paper
CT Power and Energy Conference at Illinois (PECI)
CY FEB 12-13, 2010
CL Urbana, IL
SP IEEE
DE permanent magnet synchronous machine; wound rotor synchronous machine;
design; efficiency; mass; rectifier; converter
ID DESIGN; MODEL
AB Permanent magnet and wound rotor synchronous machines (PMSMs and WRSMs) are often used in diesel engine-based portable power generation systems. In these applications, there is a growing desire to improve machine efficiency in order to reduce fossil fuel requirements. In addition, there is a desire to reduce mass to improve mobility. To attempt to address these competing performance objectives, a system analyst is confronted with numerous choices, including machine type (PM or WR), converter architecture (active/passive), and control. Herein, to assist the analyst, design tools capable of performing automated multi-objective optimization of PMSMs and WRSMs connected to both active and passive rectifiers are described. The tools are then used to derive tradeoffs between mass and efficiency for a 3 kW application.
C1 [Bash, Michelle; Pekarek, Steve; Sudhoff, Scott] Purdue Univ, Sch Elect Engn, W Lafayette, IN 47907 USA.
[Whitmore, Jennifer; Frantzen, Michelle] US Army, Power & Environm Control Engn, Support Branch, Ft Belvoir, VA 22060 USA.
RP Bash, M (reprint author), Purdue Univ, Sch Elect Engn, W Lafayette, IN 47907 USA.
EM mbash@purdue.edu; spekarek@purdue.edu; sudhoff@ecn.purdue.edu
FU U.S. Army [DAAB07-03-D-B009/0083]
FX This work was supported under contract DAAB07-03-D-B009/0083 with the
U.S. Army.
NR 8
TC 14
Z9 14
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-5903-2
PY 2010
BP 1
EP 6
DI 10.1109/PECI.2010.5437165
PG 6
WC Energy & Fuels
SC Energy & Fuels
GA BOZ83
UT WOS:000278193100001
ER
PT S
AU Arney, C
Arney, K
Peterson, E
AF Arney, Chris
Arney, Kristin
Peterson, Elisha
BE Johansson, B
Jain, S
MontoyaTorres, J
Hugan, J
Yucesan, E
TI MODELS AND METRICS OF GEOMETRIC COOPERATION
SO PROCEEDINGS OF THE 2010 WINTER SIMULATION CONFERENCE
SE Winter Simulation Conference Proceedings
LA English
DT Proceedings Paper
CT 2010 Winter Simulation Conference
CY DEC 05-08, 2010
CL Baltimore, MD
SP IEEE, ASA, ACM/SIGSIM, IEEE/SMC, IIE, INFORMS-SIM, NIST, SCS
AB A basic way that entities can cooperate with one another is by sharing of tasks through synchronized movement to balance their geometric load. For example, players of a team defending a goal may be assigned equal-spaced zones to defend or units in a military force may be assigned equal-spaced sectors to control. As the dynamics of the situation unfold and as entities move, withdraw, or enter the space; the other entities cooperate by adjusting their positions to retain load balance. Various ways that this geometric cooperation can be accomplished, both from the perspectives of central and local control, are developed, analyzed, and simulated. This problem is related to other geometric cooperation problems such as movements in multi-player pursuit-evasion games and balancing loads for other generally non-geometric algorithms. The authors use the metrics to establish a framework for a theory of geometric cooperation. Simulations, metrics, and results of the algorithms' performance in various scenarios are presented.
C1 [Arney, Chris; Arney, Kristin; Peterson, Elisha] US Mil Acad, Dept Math, West Point, NY 10996 USA.
RP Arney, C (reprint author), US Mil Acad, Dept Math, West Point, NY 10996 USA.
EM david.arney@usma.edu; kristin.arney@usma.edu; elisha.peterson@usma.edu
NR 11
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0891-7736
BN 978-1-4244-9864-2
J9 WINT SIMUL C PROC
PY 2010
BP 1383
EP 1394
DI 10.1109/WSC.2010.5679054
PG 12
WC Computer Science, Interdisciplinary Applications; Engineering,
Manufacturing; Mathematical & Computational Biology; Operations Research
& Management Science; Mathematics, Applied
SC Computer Science; Engineering; Mathematical & Computational Biology;
Operations Research & Management Science; Mathematics
GA BTS41
UT WOS:000287976701059
ER
PT S
AU Kaczynski, W
Leemis, L
Drew, J
AF Kaczynski, William
Leemis, Lawrence
Drew, John
BE Johansson, B
Jain, S
MontoyaTorres, J
Hugan, J
Yucesan, E
TI MODELING AND ANALYZING TRANSIENT MILITARY AIR TRAFFIC CONTROL
SO PROCEEDINGS OF THE 2010 WINTER SIMULATION CONFERENCE
SE Winter Simulation Conference Proceedings
LA English
DT Proceedings Paper
CT 2010 Winter Simulation Conference
CY DEC 05-08, 2010
CL Baltimore, MD
SP IEEE, ASA, ACM/SIGSIM, IEEE/SMC, IIE, INFORMS-SIM, NIST, SCS
ID STEADY-STATE SIMULATION; M/M/1 QUEUE; BEHAVIOR; SYSTEMS
AB A theoretical application of transient queueing analysis is provided for military air traffic control. The exact distribution of the nth arriving or departing flight's sojourn time in an M/M/s queue with k flights initially present is reviewed. Algorithms previously developed for computing the covariance between sojourn times for an M/M/1 queue with k >= 0 flights present at time zero are provided and utilized. Maple computer code is utilized for practical applications in air traffic control of transient queue analysis for many system measures of performance without regard to traffic intensity (i.e., the system may be unstable with traffic intensity greater than one), thus negating the need for simulation.
C1 [Kaczynski, William] US Mil Acad, 646 Swift Rd, West Point, NY 10996 USA.
[Leemis, Lawrence; Drew, John] Coll William & Mary, Williamsburg, VA 23187 USA.
RP Kaczynski, W (reprint author), US Mil Acad, 646 Swift Rd, West Point, NY 10996 USA.
EM william.kaczynski@usma.edu; leemis@math.wm.edu; jhdrew@math.wm.edu
NR 16
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0891-7736
BN 978-1-4244-9864-2
J9 WINT SIMUL C PROC
PY 2010
BP 1395
EP 1406
DI 10.1109/WSC.2010.5679051
PG 12
WC Computer Science, Interdisciplinary Applications; Engineering,
Manufacturing; Mathematical & Computational Biology; Operations Research
& Management Science; Mathematics, Applied
SC Computer Science; Engineering; Mathematical & Computational Biology;
Operations Research & Management Science; Mathematics
GA BTS41
UT WOS:000287976701060
ER
PT S
AU Dabkowski, MF
Huddleston, SH
Kucik, P
Lyle, D
AF Dabkowski, Matthew F.
Huddleston, Samuel H.
Kucik, Paul
Lyle, David
BE Johansson, B
Jain, S
MontoyaTorres, J
Hugan, J
Yucesan, E
TI SHAPING SENIOR LEADER OFFICER TALENT: HOW PERSONNEL MANAGEMENT DECISIONS
AND ATTRITION IMPACT THE FLOW OF ARMY OFFICER TALENT THROUGHOUT THE
OFFICER CAREER MODEL
SO PROCEEDINGS OF THE 2010 WINTER SIMULATION CONFERENCE
SE Winter Simulation Conference Proceedings
LA English
DT Proceedings Paper
CT 2010 Winter Simulation Conference
CY DEC 05-08, 2010
CL Baltimore, MD
SP IEEE, ASA, ACM/SIGSIM, IEEE/SMC, IIE, INFORMS-SIM, NIST, SCS
AB Army Officers play a critical role in our nation's security strategy. Throughout a career of service, officers develop talents through a unique and rare set of experiences, education, and formal training. The demand by corporations for these talents, coupled with a distinct feature of the Officer Career Model, limited lateral entry, create significant retention challenges for the U. S. Army. Understanding how personnel policies, resources, and organizational decisions affect the flow of officer talent through the Officer Career Model is a first step in addressing these retention challenges. This analysis employs discrete event simulation to quantify the probable impacts of attrition on the distribution of talent available for service across the Army's officer ranks.
C1 [Dabkowski, Matthew F.; Huddleston, Samuel H.; Kucik, Paul] US Mil Acad, Dept Syst Engn, West Point, NY 10996 USA.
[Lyle, David] US Mil Acad, Dept Social Sci, West Point, NY 10996 USA.
RP Dabkowski, MF (reprint author), US Mil Acad, Dept Syst Engn, West Point, NY 10996 USA.
EM matthew.dabkowski@us.army.mil; samuel.huddleston@usma.edu;
paul.kucik@usma.edu; da-vid.lyle@usma.edu
NR 7
TC 1
Z9 1
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0891-7736
BN 978-1-4244-9864-2
J9 WINT SIMUL C PROC
PY 2010
BP 1407
EP 1418
DI 10.1109/WSC.2010.5679052
PG 12
WC Computer Science, Interdisciplinary Applications; Engineering,
Manufacturing; Mathematical & Computational Biology; Operations Research
& Management Science; Mathematics, Applied
SC Computer Science; Engineering; Mathematical & Computational Biology;
Operations Research & Management Science; Mathematics
GA BTS41
UT WOS:000287976701061
ER
PT S
AU Arney, C
Peterson, E
AF Arney, Chris
Peterson, Elisha
BE Johansson, B
Jain, S
MontoyaTorres, J
Hugan, J
Yucesan, E
TI PARTIAL LEADING IN PURSUIT AND EVASION GAMES
SO PROCEEDINGS OF THE 2010 WINTER SIMULATION CONFERENCE
SE Winter Simulation Conference Proceedings
LA English
DT Proceedings Paper
CT 2010 Winter Simulation Conference
CY DEC 05-08, 2010
CL Baltimore, MD
SP IEEE, ASA, ACM/SIGSIM, IEEE/SMC, IIE, INFORMS-SIM, NIST, SCS
ID MOTION CAMOUFLAGE
AB Pursuit and evasion games encompass a large class of games in which one or more "pursuers" attempt to find and/or capture one or more "evaders". These games have immense practical importance, yet their mathematics is not fully-understood outside of a limited number of simple cases. This paper introduces PursuitSim, a simulation platform for pursuit and evasion games in which the user interactively explores these games by dynamically adjusting algorithm parameters. The dynamic and exploratory nature of the platform allows the user to quickly ascertain broad patterns and test hypotheses. We discuss insights gained using the platform on the efficacy of "leading" strategies in situations where the pursuer can make reasonable assumptions about the path of the evader.
C1 [Arney, Chris; Peterson, Elisha] US Mil Acad, Dept Math Sci, West Point, NY 10996 USA.
RP Arney, C (reprint author), US Mil Acad, Dept Math Sci, West Point, NY 10996 USA.
EM david.arney@usma.edu; triathematician@gmail.com
NR 11
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0891-7736
BN 978-1-4244-9864-2
J9 WINT SIMUL C PROC
PY 2010
BP 1419
EP 1430
DI 10.1109/WSC.2010.5679049
PG 12
WC Computer Science, Interdisciplinary Applications; Engineering,
Manufacturing; Mathematical & Computational Biology; Operations Research
& Management Science; Mathematics, Applied
SC Computer Science; Engineering; Mathematical & Computational Biology;
Operations Research & Management Science; Mathematics
GA BTS41
UT WOS:000287976701062
ER
PT S
AU Gallant, S
Gaughan, C
AF Gallant, Scott
Gaughan, Chris
BE Johansson, B
Jain, S
MontoyaTorres, J
Hugan, J
Yucesan, E
TI SYSTEMS ENGINEERING FOR DISTRIBUTED LIVE, VIRTUAL, AND CONSTRUCTIVE
(LVC) SIMULATION
SO PROCEEDINGS OF THE 2010 WINTER SIMULATION CONFERENCE
SE Winter Simulation Conference Proceedings
LA English
DT Proceedings Paper
CT 2010 Winter Simulation Conference
CY DEC 05-08, 2010
CL Baltimore, MD
SP IEEE, ASA, ACM/SIGSIM, IEEE/SMC, IIE, INFORMS-SIM, NIST, SCS
AB Designing a distributed simulation environment across multiple domains that typically have disparate middleware transport protocols, data exchange formats and applications increases the difficulty of capturing and linking system design decisions to the resultant implementation. Systems engineering efforts for distributed simulation environments are typically based on the middleware transport used, the applications available and the constraints placed on the technical team including network, computer and personnel limitations.
To facilitate community re-use, systems engineering should focus on integrated operational function decomposition. This links data elements produced within the simulation to the functional capabilities required by the user. The system design should be captured at a functional level and subsequently linked to the technical design. Doing this within a data-driven systems engineering infrastructure allows generative programming techniques to assist accurate, flexible and rapid architecture development. This paper describes the MATREX program systems engineering process, infrastructure and path forward.
C1 [Gallant, Scott] Effect Applicat Corp, 318 Osprey Lakes Circle, Chuluota, FL 32766 USA.
[Gaughan, Chris] US Army Res Dev & Engn Command, Simulat & Training Technol Ctr STTC, Washington, DC 20052 USA.
RP Gallant, S (reprint author), Effect Applicat Corp, 318 Osprey Lakes Circle, Chuluota, FL 32766 USA.
EM Scott@EffectiveApplications.com; Chris.Gaughan@us.army.mil
NR 13
TC 1
Z9 1
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0891-7736
BN 978-1-4244-9864-2
J9 WINT SIMUL C PROC
PY 2010
BP 1501
EP 1511
DI 10.1109/WSC.2010.5679044
PG 11
WC Computer Science, Interdisciplinary Applications; Engineering,
Manufacturing; Mathematical & Computational Biology; Operations Research
& Management Science; Mathematics, Applied
SC Computer Science; Engineering; Mathematical & Computational Biology;
Operations Research & Management Science; Mathematics
GA BTS41
UT WOS:000287976701069
ER
PT J
AU Fuselier, JC
AF Fuselier, Jenny C.
TI HYPERGEOMETRIC FUNCTIONS OVER F-p AND RELATIONS TO ELLIPTIC CURVES AND
MODULAR FORMS
SO PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY
LA English
DT Article
ID FINITE-FIELDS; SERIES; VALUES
AB For primes p equivalent to 1 (mod 12), we present an explicit relation between the traces of Frobenius on a family of elliptic curves with j-invariant 1728/t and values of a particular F-2(1)-hypergeometric function over F-p. We also give a formula for traces of Hecke operators on spaces of cusp forms of weight k and level 1 in terms of the same traces of Frobenius. This leads to formulas for Ramanujan's tau-function in terms of hypergeometric functions.
C1 [Fuselier, Jenny C.] US Mil Acad, West Point, NY 10996 USA.
RP Fuselier, JC (reprint author), High Point Univ, Dept Math & Comp Sci, Drawer 31, High Point, NC 27262 USA.
EM jfuselie@highpoint.edu
NR 18
TC 22
Z9 22
U1 0
U2 0
PU AMER MATHEMATICAL SOC
PI PROVIDENCE
PA 201 CHARLES ST, PROVIDENCE, RI 02940-2213 USA
SN 0002-9939
J9 P AM MATH SOC
JI Proc. Amer. Math. Soc.
PD JAN
PY 2010
VL 138
IS 1
BP 109
EP 123
PG 15
WC Mathematics, Applied; Mathematics
SC Mathematics
GA 543XO
UT WOS:000273614200012
ER
PT B
AU Rogers, J
Rabb, R
AF Rogers, John
Rabb, Robert
GP ASME
TI CONTROL THEORY IN PRACTICE: MAGNETIC LEVITATION
SO PROCEEDINGS OF THE ASME 10TH BIENNIAL CONFERENCE ON ENGINEERING SYSTEMS
DESIGN AND ANALYSIS, 2010, VOL 2
LA English
DT Proceedings Paper
CT 10th ASME Biennial Conference on Engineering Systems Design and Analysis
CY JUL 12-24, 2010
CL Istanbul, TURKEY
SP ASME, Petroleum Div
AB A device that levitates a steel ball beneath an electromagnet is used for educational purposes at the United States Military Academy, West Point, New York. Students in the course "Mechatronics" engage in a set of laboratory exercises with the device to reinforce classroom learning. Mechatronics is a senior-level course that introduces the interdisciplinary design of smart systems. Students in the electrical engineering and mechanical engineering programs take the course together, and the material is taught by a team of instructors from both academic departments. The Magnetic Levitation experiments are the primary means of teaching the classical analog control portion of the course. Other aspects of the course involve interfacing microcontrollers with sensors and actuators, and digital control. The magnetic levitation device fits easily on a two-person workbench and requires a power supply and oscilloscope. An infra-red emitter / detector pair is used to sense ball position for a feedback compensator. Students first learn classical control theory in a co-requisite course, "Dynamic Modeling and Control." Modeling principles are introduced in the context of the magnetic levitation system as an unstable plant to be controlled. The system can be simulated by models ranging from simply linear to more complex to teach the trade-off between model fidelity and model development effort. The students derive the nonlinear governing equations and then linearize the equations and develop the transfer function of the plant. Students design a compensator and simulate the resulting stabilized system with Matlab and Simulink software. Students build their compensator on a solderless project board to levitate the steel ball. A proven lead-type compensator using two resistors and a capacitor is readily provided to students that struggle with their own compensator design so that all teams may enjoy the fruit of a successful experiment. As a laboratory aid, the magnetic levitation system allows for basic and advanced approaches to both theoretical study and practical investigation of a nonlinear, unstable system control. The comparison of measured results to predicted behavior leads to insight about how the physical system is modeled by mathematics. Students write a case study describing the system in detail including characterization of the sensors and actuators. Instructors report that the hands-on nature motivates students to excel. Surveyed students cite the hands-on activities as relevant applications that help develop deeper understanding and greater appreciation for the concepts learned in the classroom. The students are motivated to learn by the fascination of defying gravity.
C1 [Rogers, John; Rabb, Robert] US Mil Acad, West Point, NY 10996 USA.
RP Rogers, J (reprint author), US Mil Acad, West Point, NY 10996 USA.
NR 6
TC 0
Z9 0
U1 0
U2 3
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4916-3
PY 2010
BP 823
EP 829
PG 7
WC Thermodynamics; Engineering, Mechanical; Mechanics
SC Thermodynamics; Engineering; Mechanics
GA BVB69
UT WOS:000290977200100
ER
PT B
AU Lux, S
Nelson, A
Josefik, N
Holcomb, F
AF Lux, Scott
Nelson, Arif
Josefik, Nicholas
Holcomb, Franklin
GP ASME
TI COMPONENT FAILURE ANALYSIS FROM A FLEET OF PEM FUEL CELLS
SO PROCEEDINGS OF THE ASME 8TH INTERNATIONAL CONFERENCE ON FUEL CELL
SCIENCE, ENGINEERING, AND TECHNOLOGY 2010, VOL 2
LA English
DT Proceedings Paper
CT 8th International Conference on Fuel Cell Science, Engineering, and
Technology
CY JUN 14-16, 2010
CL Brooklyn, NY
SP ASME, Adv Energy Syst Div
ID SYSTEMS; POWER
AB The U.S. Army Engineer Research and Development Center, Construction Engineering Research Laboratory (ERDC-CERL) managed the Residential Proton Exchange Membrane (PEM) Fuel Cell Demonstration. The U.S. Congress funded this project for fiscal years 2001-2004. A fleet of 91 residential-scale PEM fuel cells, ranging in size from 1-5 kW, was demonstrated at various U.S. Department of Defense (DoD) facilities worldwide.
This detailed analysis looks into the most prevalent means of failure in the PEM fuel cell systems as categorized from the stack, reformer, and power-conditioning systems as well as the subsequent subsystems. Also evaluated are the lifespan and failure modes of selected fuel cell components, based on component type, age, and usage. The analysis shows while the fuel cell stack components had the single highest number of outages, the balance of plant made for 60.6% of the total outages. The hydrogen cartridges were the most prevalent component replaced during the entire program. The natural gas fuel cell stacks had the highest average operational lifetime; one stack reached a total of 10,250 hours.
C1 [Lux, Scott; Nelson, Arif; Josefik, Nicholas; Holcomb, Franklin] USA, Construct Engn Res Lab, Engineer Res & Dev Ctr, Champaign, IL 61824 USA.
RP Lux, S (reprint author), USA, Construct Engn Res Lab, Engineer Res & Dev Ctr, Champaign, IL 61824 USA.
NR 5
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4405-2
PY 2010
BP 489
EP 495
PG 7
WC Electrochemistry; Energy & Fuels; Engineering, Mechanical; Materials
Science, Multidisciplinary
SC Electrochemistry; Energy & Fuels; Engineering; Materials Science
GA BVC14
UT WOS:000291011500058
ER
PT B
AU O'Brien, DJ
Baechle, DM
Wetzel, ED
AF O'Brien, Daniel J.
Baechle, Daniel M.
Wetzel, Eric D.
GP ASME
TI PERFORMANCE METRICS FOR STRUCTURAL COMPOSITE CAPACITORS
SO PROCEEDINGS OF THE ASME CONFERENCE ON SMART MATERIALS, ADAPTIVE
STRUCTURES AND INTELLIGENT SYSTEMS, 2010, VOL 2
LA English
DT Proceedings Paper
CT 3rd Annual Meeting of the ASME/AIAA Smart Materials, Adaptive
Structures, and Intelligent Systems Conference
CY SEP 28-OCT 01, 2010
CL Philadelphia, PA
SP ASME, Nanotechnol Inst
ID RAILGUN
AB In previous efforts, structural composite capacitors were developed using off-the-shelf starting materials and conventional composites processing techniques [1]. Assuming a stiffness-driven design we showed that while these devices may not perform individual structural or energy storage functions as well as their conventional monofunctional counterparts, on a system level they perform these functions efficiently enough to save mass. In this work we examine the efficacy of these structural capacitors in saving mass for a strength-based design. We also consider the multifunctional performance assuming a stiffness-driven design in which the goal is to save overall system volume. Experiments and analysis show that the best-performing structural capacitors simultaneously reduce overall system mass and volume.
C1 [O'Brien, Daniel J.; Baechle, Daniel M.; Wetzel, Eric D.] USA, Res Lab, Weap & Mat Res Directorate, Aberdeen Proving Ground, MD 21005 USA.
RP O'Brien, DJ (reprint author), USA, Res Lab, Weap & Mat Res Directorate, Aberdeen Proving Ground, MD 21005 USA.
NR 18
TC 1
Z9 1
U1 0
U2 3
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4416-8
PY 2010
BP 215
EP 221
PG 7
WC Computer Science, Artificial Intelligence; Engineering, Biomedical;
Engineering, Mechanical; Materials Science, Multidisciplinary; Materials
Science, Biomaterials
SC Computer Science; Engineering; Materials Science
GA BVA74
UT WOS:000290916200030
ER
PT B
AU Clark, DA
Owen, AK
Kascak, AF
Porter, BJ
AF Clark, David A.
Owen, Albert K.
Kascak, Albert F.
Porter, Brian J.
GP ASME
TI INVESTIGATION AND DEMONSTRATION OF A SMALL INTERMITTENT INTERNAL
COMBUSTION HEAVY-FUELED ENGINE
SO PROCEEDINGS OF THE ASME INTERNAL COMBUSTION ENGINE DIVISION FALL
TECHNICAL CONFERENCE
LA English
DT Proceedings Paper
CT Fall Technical Conference of the ASME Internal Combustion Engine
Division
CY SEP 12-15, 2010
CL SW Res Inst, San Antonio, TX
SP ASME, Internal Combust Engine Div
HO SW Res Inst
AB Since 2004, the Department of Defense (DoD) has had the stated goal of transitioning all engine systems to use a single fuel - JP-8. This "one fuel forward" initiative simplifies logistical issues, improves safety, and increases combat effectiveness. To improve technologies required to run Intermittent Internal Combustion (IIC) engines on lower volatility heavy fuels, the US Army Vehicle Technology Directorate (VTD) acquired and tested a small IIC engine and developed procedures allowing the operation of this engine on JP-8.
The program consisted of engine simulation, engine testing and flight demonstration. Several strategies are presented to enhance the engine operation based on thermal management techniques and fuel injection.
C1 [Clark, David A.; Owen, Albert K.; Kascak, Albert F.] USA, Army Res Lab, Cleveland, OH USA.
RP Clark, DA (reprint author), USA, Army Res Lab, VTD, Cleveland, OH USA.
NR 7
TC 0
Z9 0
U1 0
U2 1
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4944-6
PY 2010
BP 215
EP 224
PG 10
WC Engineering, Mechanical; Instruments & Instrumentation
SC Engineering; Instruments & Instrumentation
GA BUW37
UT WOS:000290505600023
ER
PT B
AU Pereira, CM
Rastegar, J
AF Pereira, Carlos M.
Rastegar, Jahangir
GP ASME
TI HIGH-G HARDENED SENSORS
SO PROCEEDINGS OF THE ASME INTERNATIONAL DESIGN ENGINEERING TECHNICAL
CONFERENCES AND COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE
2010, VOL 2, PTS A AND B
LA English
DT Proceedings Paper
CT ASME Internationl Design Engineering Technical Conferences / Computers
and Information in Engineering Conference
CY AUG 15-18, 2010
CL Montreal, CANADA
SP Amer Soc Mech Engineers, Design Engn Div, Amer Soc Mech Engineers, Comp & Informat Engn Div
AB The state of the art in shock resistant accelerometer and gyro design is to use smaller proof mass, thereby reducing the related forces that are generated as a result of high acceleration levels. Physical stops are also provided to limit the maximum proof mass displacement/rotation. The introduction of MEMS technology has made it possible to significantly reduce the proof mass. However, all existing accelerometer/gyro designs for high shock resistance suffer from low sensitivity at the very low acceleration levels required for guidance and control purposes, and from long settling time. The basic method of design and the concepts described in this patent provide the means to alleviate these shortcomings. The novelty in these designs is in the provision of the means to lock the proof mass in its "null" position during the high accelerations, such as during shock (impact) loading, and release it afterwards. The locking mechanism may be passive or active. As a result, the settling time of the proof mass is minimized and the precision with which the sensor can make its measurements is significantly increased.
C1 [Pereira, Carlos M.] USA, ARDEC, Picatinny Arsenal, NJ USA.
RP Pereira, CM (reprint author), USA, ARDEC, Picatinny Arsenal, NJ USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4410-6
PY 2010
BP 1219
EP 1220
PG 2
WC Engineering, Mechanical; Robotics
SC Engineering; Robotics
GA BFJ16
UT WOS:000320068900128
ER
PT B
AU Consuegra, B
Flowers, GT
AF Consuegra, Brittany
Flowers, George T.
GP ASME
TI SIMPLIFIED ANALYSIS STRATEGIES FOR FLUID-STRUCTURE INTERACTION IN HIGH
SPEED TURBOMACHINERY
SO PROCEEDINGS OF THE ASME INTERNATIONAL DESIGN ENGINEERING TECHNICAL
CONFERENCES AND COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE, VOL
1, PT B
LA English
DT Proceedings Paper
CT ASME International Design Engineering Technical Conferences/Computers
and Information in Engineering Conference
CY AUG 30-SEP 02, 2009
CL San Diego, CA
SP ASME, Design Engn Div, ASME, Computers & Info Engn Div
ID CONTROL VALVE; FLOW
AB High pressure seals are usually mounted between the rotating and stationary components in high-pressure turbomachinery and often experience intense vibration. These vibrations can interact with the fluid to produce unsteady flows, which can in turn induce structural vibrations that result in machine failure. The reduction of the adverse effects of these vibrations is considered one of the most challenging problems for turbopump design. However, detailed analyses of such fluid-structure interaction problems can be extremely time-consuming and inefficient. The purpose of the present study is to evaluate the effectiveness of simplified, lumped-parameter techniques in analyzing and predicting such behavior, as compared to more sophisticated techniques, with the goal of defining the range of validity for such techniques. A fluid-structure driven vibration is evaluated using a lumped parameter analysis for a wide range of parametric configurations and the results are validated and compared using a bench-top laboratory test rig.
C1 [Consuegra, Brittany] USA, Redstone Arsenal, AL USA.
RP Consuegra, B (reprint author), USA, Redstone Arsenal, AL USA.
NR 11
TC 0
Z9 0
U1 0
U2 1
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4898-2
PY 2010
BP 839
EP 843
PG 5
WC Engineering, Mechanical
SC Engineering
GA BUV65
UT WOS:000290466700007
ER
PT B
AU Jankowski, NR
McCluskey, FP
AF Jankowski, Nicholas R.
McCluskey, F. Patrick
GP ASME
TI ELECTRICAL SUPERCOOLING MITIGATION IN ERYTHRITOL
SO PROCEEDINGS OF THE ASME INTERNATIONAL HEAT TRANSFER CONFERENCE - 2010,
VOL 7: NATURAL CONVECTION, NATURAL/MIXED CONVECTION, NUCLEAR, PHASE
CHANGE MATERIALS, SOLAR
LA English
DT Proceedings Paper
CT 14th International Heat Transfer Conference
CY AUG 08-13, 2010
CL Washington, DC
ID THERMAL-ENERGY-STORAGE; PHASE-CHANGE MATERIALS; FREEZE CONTROL; ICE
CRYSTALS; HEAT-STORAGE; WATER; TEMPERATURE; NUCLEATION; LIQUID; NUCLEUS
AB This report describes an experimental investigation into the effect of electric current in reducing the supercooling of erythritol. Previous studies have identified crythritol as a prime material candidate for moderate temperature thermal energy storage (TES) systems due to its high latent heat of fusion and melting temperature (118 degrees C), but it has also shown excessive supercooling, sometimes exceeding 65 degrees C [1]. Various methods for controlling or reducing supercooling are reviewed, including work by Shichiri and Hozumi showing that a small electric current passed through supercooled water is highly effective in initiating nucleation [2,3]. In the present study, the authors demonstrate a similar effect with erythritol by subjecting a sample to repeated thermal cycles with and without the application of a direct electric current. The control cases without electric current showed a highly variable recrystallization temperature ranging from 67 degrees C to 109 degrees C (or supercooling magnitudes from 9 to 51 degrees C). Passing a direct current through the sample using silver wire electrodes significantly shifted the material's nucleation behavior. The local nucleation temperature only varied from 108 degrees C to 112 degrees C (or 6-10 degrees C of supercooling), and nucleation always occurred on the positive electrode surface. Control cases both before and after the electrical trials indicated no noticeable change in sample crystallization behavior.
C1 [Jankowski, Nicholas R.] USA, Res Lab, Adelphi, MD USA.
RP Jankowski, NR (reprint author), USA, Res Lab, Adelphi, MD USA.
EM nicholas.jankowski@us.army.mil; mcclupa@umd.edu
NR 36
TC 3
Z9 3
U1 0
U2 9
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4942-2
PY 2010
BP 409
EP 416
PG 8
WC Thermodynamics; Energy & Fuels; Engineering, Mechanical; Materials
Science, Multidisciplinary
SC Thermodynamics; Energy & Fuels; Engineering; Materials Science
GA BBK62
UT WOS:000307209200048
ER
PT B
AU Troiano, E
Underwood, JH
Parker, AP
Mossey, C
AF Troiano, E.
Underwood, J. H.
Parker, A. P.
Mossey, C.
GP ASME
TI POST AUTOFRETTAGE THERMAL TREATMENT AND ITS EFFECT ON RE-YIELDING OF
HIGH STRENGTH PRESSURE VESSEL STEELS
SO PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE 2009, VOL
5
LA English
DT Proceedings Paper
CT Pressure Vessels and Piping Conference of the
American-Society-of-Mechanical-Engineers
CY JUL 26-30, 2009
CL Prague, CZECH REPUBLIC
SP ASME, Pressure Vessels & Piping Div
AB The autofrettage process of a thick walled pressure vessel involves applying tensile plastic strain at the bore of the vessel which reverses during unloading and results in favorable compressive residual stresses at the bore and prolongs the fatigue life of the component. In thick walled pressure vessels this process can be accomplished with either a hydraulic or mechanical overloading process. The Bauschinger effect, which is observed in many of the materials used in thick walled pressure vessels, is a phenomenon which results in lower compressive residual stresses than those predicted with classic ideal isotropic hardening. The phenomenon is a strong function of the amount of prior tensile plastic strain. A novel idea which involves a multiple autofrettage process has been proposed by the present authors. This process requires a low temperature post autofrettage thermal treatment which effectively returns the material to its original yield conditions without affecting its residual stress state. Details of this low temperature thermal treatment are proprietary. A subsequent second autofrettage process generates a significantly lower amount of plastic strain during the tensile re-loading and results in higher compressive residual stresses.
This paper reports the details of exploratory tests involving tensile and compressive loading of a test coupon, followed by a low temperature post plastic straining thermal treatment, and subsequent re-loading in tension and compression. Finally results of a full scale Safe Maximum Pressure (SMP) test of pressure vessels are presented; these tests indicate a significant increase (11%) in SMP.
C1 [Troiano, E.; Underwood, J. H.; Mossey, C.] USA, RDT&E Ctr, Watervliet, NY 12189 USA.
RP Troiano, E (reprint author), USA, RDT&E Ctr, Watervliet, NY 12189 USA.
NR 10
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4368-0
PY 2010
BP 131
EP 135
PG 5
WC Engineering, Mechanical
SC Engineering
GA BQZ37
UT WOS:000282195600015
ER
PT B
AU Underwood, JH
Carter, RH
Troiano, E
Parker, AP
AF Underwood, John H.
Carter, Robert H.
Troiano, Edward
Parker, Anthony P.
BE Stang, D
Keltjens, J
Springer, WT
Cory, JF
Dixon, RD
Simpson, K
Morgan, C
Rodriguez, EA
Minichiello, J
Leishear, R
TI MECHANICS DESIGN MODELS FOR ADVANCED PRESSURE VESSELS: AUTOFRETTAGE WITH
HIGHER STRENGTH STEEL; STEEL LINER - COMPOSITE JACKET CONFIGURATIONS;
ALTERNATIVE THERMAL BARRIER COATINGS
SO PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE 2010, VOL
5
SE PRESSURE VESSEL AND PIPING DIVISION OF THE AMERICAN SOCIETY OF
MECHANICAL ENGINEERS
LA English
DT Proceedings Paper
CT ASME Pressure Vessels and Piping Division/K-PVP Conference
CY JUL 18-22, 2010
CL Bellevue, WA
SP ASME, Pressure Vessels & Piping Div
ID CANNONS
AB Solid mechanics models are described of mechanical and thermal stresses in 1000-1400 MPa yield strength, autofrettaged, steel pressure vessels. Modeling results describe idealized advanced vessel configurations with improved resistance to mechanical damage from internal pressure and thermal damage from transient internal heating. [i] Calculations of autofrettage hoop residual stresses are based on the classic Hill elastic-plastic results for thick-wall tubes, with modifications to account for the Bauschinger-reduced compressive strength of the tube steel near the bore. [ii] Stresses in metal liner - composite jacket tubes are calculated using the Parker layered-tube model, which gives applied and residual elastic stresses for two-layer tubes with specified properties and interference between layers. [iii] Transient thermal stresses in bore barrier coatings are calculated using the finite difference methods of Witherell, describing one-dimensional, convection-conduction heat flow, focusing on near-bore temperatures using time-dependent combustion gas temperatures and convection coefficient data from interior ballistic codes. Temperatures are obtained for various thicknesses of metallic and ceramic coatings on steel substrate, using temperature-dependent conductivity and diffusivity data for the coatings and substrate. In-situ verification of calculated temperature profiles is done by comparing with metallographic observation of depths of the steel phase transformation and the known characteristic transformation temperature. When the transient shear stress near the interface exceeds the reduced elevated-temperature strength of the interface, coating segments are modeled to be lost by shear failure, which in turn would lead to rapid hot-gas erosion of the steel substrate.
Results of the model calculations are used to identify potential improvements in advanced pressure vessels, using idealized configurations as examples. [i] Autofrettage of higher strength steel vessels shows significant increase in both yield pressure and fatigue life, but poorer resistance to both hydrogen cracking and yield-before-break final failure, compared to traditional lower strength designs of equivalent weight. [ii] Vessels with steel liner and either high strength carbon/epoxy or unidirectional Al(2)O(3)/Al jacket and high liner-jacket interference show similar fatigue life to that of all-steel designs of equivalent weight. However radial compressive crushing of composite materials in transverse orientation limits composite jacketed vessels to lower applied pressure than all-steel designs. [iii] Metal thermal barrier coatings generally suffer from compressive yielding at elevated temperatures near the bore, leading to tensile residual stress, cracking, and erosion failure. The higher hot strength of a Si(3)N(4) ceramic provides significant improvement in yielding and cracking resistance and thus erosion resistance, compared with metal coatings subjected to the same thermal conditions.
C1 [Underwood, John H.] USA, Benet Labs, Battelle Sci Serv, Watervliet, NY USA.
RP Underwood, JH (reprint author), USA, Benet Labs, Battelle Sci Serv, Watervliet, NY USA.
NR 18
TC 0
Z9 0
U1 0
U2 4
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4924-8
J9 PRES VES P
PY 2010
BP 1
EP 11
PG 11
WC Engineering, Mechanical; Materials Science, Characterization & Testing
SC Engineering; Materials Science
GA BVG83
UT WOS:000291502300001
ER
PT B
AU Carter, RH
Gray, DM
AF Carter, Robert H.
Gray, David M.
BE Stang, D
Keltjens, J
Springer, WT
Cory, JF
Dixon, RD
Simpson, K
Morgan, C
Rodriguez, EA
Minichiello, J
Leishear, R
TI GUN LINER EMPLACEMENT USING ELASTOMERIC MATERIALS
SO PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE 2010, VOL
5
SE PRESSURE VESSEL AND PIPING DIVISION OF THE AMERICAN SOCIETY OF
MECHANICAL ENGINEERS
LA English
DT Proceedings Paper
CT ASME Pressure Vessels and Piping Division/K-PVP Conference
CY JUL 18-22, 2010
CL Bellevue, WA
SP ASME, Pressure Vessels & Piping Div
AB The development of a process to emplace a refractory metal liner inside a gun tube is described. The process consists of filling the liner with an elastomeric material and then slipping this arrangement into the gun tube whose inner diameter is close to the outer diameter of the liner. The ends of the liner are plugged with plastic disks and pressure is applied to the elastomeric material by a load frame. This pressure can produce a residual internal stress within the steel gun tube that produces a frictional bond between the liner and gun tube. Initial efforts have resulted in bond strengths over 3 ksi (21 MPa). In addition, by tailoring the degree of lubrication between the elastomeric material and the liner, a graded autofrettage can be produced in the steel gun tube.
C1 [Carter, Robert H.; Gray, David M.] USA, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
RP Carter, RH (reprint author), USA, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
NR 3
TC 0
Z9 0
U1 1
U2 2
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4924-8
J9 PRES VES P
PY 2010
BP 129
EP 134
PG 6
WC Engineering, Mechanical; Materials Science, Characterization & Testing
SC Engineering; Materials Science
GA BVG83
UT WOS:000291502300015
ER
PT B
AU Kraft, R
AF Kraft, Reuben
GP ASME
TI MECHANISMS OF HEAD INJURY DURING HIGH-RATE BLAST AND BLUNT IMPACT EVENTS
SO PROCEEDINGS OF THE ASME SUMMER BIOENGINEERING CONFERENCE, 2010
LA English
DT Proceedings Paper
CT 12th ASME Summer Bioengineering Conference
CY JUN 16-19, 2010
CL Naples, FL
SP ASME, Bioengineer Div, Natl Inst Health, Natl Sci Fdn
C1 USA, High Rate Mech & Failure Branch, Protect Div, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
RP Kraft, R (reprint author), USA, High Rate Mech & Failure Branch, Protect Div, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
NR 3
TC 0
Z9 0
U1 0
U2 3
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4403-8
PY 2010
BP 809
EP 810
PG 2
WC Engineering, Biomedical
SC Engineering
GA BUY47
UT WOS:000290705300405
ER
PT J
AU Haridim, M
Bank, M
Levin, B
Rechels, T
Levy, Y
AF Haridim, M.
Bank, M.
Levin, B.
Rechels, T.
Levy, Y.
GP IEEE
TI Near Region Field of Antennas in Piecewise-Homogeneous Media
SO PROCEEDINGS OF THE FOURTH EUROPEAN CONFERENCE ON ANTENNAS AND
PROPAGATION
LA English
DT Proceedings Paper
CT 4th European Conference on Antennas and Propagation (EuCAP)
CY APR 12-16, 2010
CL Barcelona, SPAIN
SP esa, CST, FEKO, TICRA, ANSOFT, ANSYS, speag, fractus, IET, WILEY-BLACKWELL, EPFL, EUREL, UPC
DE Antenna theory; Compensation; Electromagnetic compatibility; Mobile
antennas; Mutual coupling
AB The mutual effect of electric dipoles located in the near region of each other is considered. The problem is solved with due account of that the space is a heterogeneous medium with an equivalent permittivity. Calculations are based on the theory of folded dipoles. It is shown that by means of a compensation method one can produce a weak field in a given area and diminish a user's irradiation. The calculation and experimental results are presented and validate the high efficiency of the compensation method.
C1 [Haridim, M.; Bank, M.; Levin, B.; Rechels, T.] HIT Holon Inst Technol, Golomb St 52, Holon, Israel.
[Levy, Y.] US Army, CERDEC S&TCD, Ft Monmouth, NJ 07703 USA.
RP Haridim, M (reprint author), HIT Holon Inst Technol, Golomb St 52, Holon, Israel.
EM levinpaker@gmail.com
NR 5
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-84-7653-472-4
PY 2010
PG 5
WC Engineering, Electrical & Electronic
SC Engineering
GA BXN69
UT WOS:000296541700022
ER
PT J
AU Wang, X
Zaghloul, AI
AF Wang, Xiao
Zaghloul, Amir I.
GP IEEE
TI Near-Isotropic Negative Refraction Simulation in Metamaterials Using
Geometrical Optics and Scattering Matrix Parameters
SO PROCEEDINGS OF THE FOURTH EUROPEAN CONFERENCE ON ANTENNAS AND
PROPAGATION
LA English
DT Proceedings Paper
CT 4th European Conference on Antennas and Propagation (EuCAP)
CY APR 12-16, 2010
CL Barcelona, SPAIN
SP esa, CST, FEKO, TICRA, ANSOFT, ANSYS, speag, fractus, IET, WILEY-BLACKWELL, EPFL, EUREL, UPC
AB This paper presents a simulation of the negative refraction of a metamaterial structure that shows near-isotropic characteristics. The calculation of the negative refractive index is done using geometrical optics based on Snell's law, and using the constitutive parameters that are derived from scattering matrix simulation. The unit cell is a cross arrangement of two planes that contain a capacitively-loaded loop plus post (CLL-P) pattern in each of the planes. The agreement between the two computation methods and the incidence-angle-independent results show that the structure is nearly isotropic.
C1 [Wang, Xiao] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA.
[Zaghloul, Amir I.] US Army Res Lab, Adelphi, MD USA.
RP Wang, X (reprint author), Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA.
EM xwang@vt.edu; amir.zaghloul@us.army.mil
NR 8
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-84-7653-472-4
PY 2010
PG 5
WC Engineering, Electrical & Electronic
SC Engineering
GA BXN69
UT WOS:000296541704080
ER
PT S
AU McMillan, RW
AF McMillan, R. W.
GP IEEE
TI Atmospheric Turbulence Effects on Radar Systems
SO PROCEEDINGS OF THE IEEE 2010 NATIONAL AEROSPACE AND ELECTRONICS
CONFERENCE (NAECON)
SE IEEE National Aerospace and Electronics Conference
LA English
DT Proceedings Paper
CT IEEE National Aerospace and Electronics Conference
CY JUL 14-16, 2010
CL Fairborn, OH
SP IEEE
DE angle-of-arrival; AOA; diffraction limited; microwave beams; turbulent
atmosphere; signal-to-clutter-and-noise; ultrawideband; detection
probability
ID SCINTILLATION; FLUCTUATIONS; PROPAGATION
AB Atmospheric turbulence has been shown to have measurable effects on several aspects of radar performance. In this paper we discuss the perturbation of the angle-of-arrival (AOA) of radar beams caused by the atmosphere, the effects of lognormal- and Weibull-distributed clutter on detection performance, and the detection probability of ultrawideband pulses propagated through the atmosphere in the presence of turbulence and Gaussian noise. We find that AOA effects are on the order of a few microradians, which is a negligible level for most applications, but that clutter and noise, when combined with turbulent fluctuations, give some surprising results when the ratio of signal to clutter and noise is calculated. The detection of ultrawideband pulses is analogous to the "needle in a haystack" problem. In this paper, we present theories describing each of these phenomena, together with calculated results. For AOA, we have made measurements for one-way propagation that agree well with this theory, but the other phenomena have yet to be measured.
C1 USA, Space & Missile Def Command, Huntsville, AL 35807 USA.
RP McMillan, RW (reprint author), USA, Space & Missile Def Command, Huntsville, AL 35807 USA.
EM bob.mcmillan@us.army.mil
NR 26
TC 0
Z9 0
U1 1
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0547-3578
BN 978-1-4244-6578-1
J9 PROC NAECON IEEE NAT
PY 2010
BP 181
EP 196
DI 10.1109/NAECON.2010.5712944
PG 16
WC Engineering, Aerospace; Engineering, Electrical & Electronic
SC Engineering
GA BWU80
UT WOS:000294969100030
ER
PT J
AU Grujicic, M
He, T
Arakere, G
Yalavarthy, HV
Yen, CF
Cheeseman, BA
AF Grujicic, M.
He, T.
Arakere, G.
Yalavarthy, H. V.
Yen, C-F
Cheeseman, B. A.
TI Fully coupled thermomechanical finite element analysis of material
evolution during friction-stir welding of AA5083
SO PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF
ENGINEERING MANUFACTURE
LA English
DT Article
DE fully coupled thermomechanical finite element analysis; friction-stir
welding; welding plates; Lagrangian-Eulerian formulation
ID ALUMINUM-ALLOYS; MECHANICAL-PROPERTIES; 6061-T6 ALUMINUM; WELDED-JOINTS;
MATERIAL FLOW; MICROSTRUCTURE; PARAMETERS; SIMULATION; SPEED; MODEL
AB Interactions between the rotating and advancing pin-shaped tool (terminated at one end with a circular cylindrical shoulder) with the clamped welding plates and the associated material and heat transport during a friction-stir welding (FSW) process are studied computationally using a fully coupled thermomechanical finite element analysis. To surmount potential numerical problems associated with extensive mesh distortions/entanglement, an arbitrary Lagrangian-Eulerian (ALE) formulation was used, which enabled adaptive remeshing (to ensure the continuing presence of a high-quality mesh) while allowing full tracking of the material-free surfaces. To demonstrate the utility of the present computational approach, the analysis is applied to the case of FSW of AA5083 (a solid-solution strengthened and strain-hardened/stabilized Al-Mg wrought alloy). To account for the competition between plastic deformation-controlled strengthening and dynamic recrystallization-induced softening phenomena during the FSW process, the original Johnson Cook strain and strain-rate hardening and temperature-softening material strength model is modified using the available recrystallization kinetics experimental data. Lastly, the computational results obtained in the present work are compared with their experimental counterparts available in the open literature. This comparison revealed that general trends regarding spatial distribution and temporal evolutions of various material-state quantities and their dependence on the FSW process parameters are reasonably well predicted by the present computational approach.
C1 [Grujicic, M.; He, T.; Arakere, G.; Yalavarthy, H. V.] Clemson Univ, Dept Mech Engn, Clemson, SC 29634 USA.
[Yen, C-F; Cheeseman, B. A.] USA, Res Lab, Proving Ground, MD USA.
RP Grujicic, M (reprint author), Clemson Univ, Dept Mech Engn, 241 EIB, Clemson, SC 29634 USA.
EM mica@ces.clemson.edu
FU US Army/Clemson University [W911NF-04-2-0024, W911NF-06-2-0042]
FX The material presented in this paper is based on work supported by the
US Army/Clemson University Cooperative Agreements W911NF-04-2-0024 and
W911NF-06-2-0042.
NR 39
TC 30
Z9 31
U1 3
U2 16
PU PROFESSIONAL ENGINEERING PUBLISHING LTD
PI WESTMINISTER
PA 1 BIRDCAGE WALK, WESTMINISTER SW1H 9JJ, ENGLAND
SN 0954-4054
J9 P I MECH ENG B-J ENG
JI Proc. Inst. Mech. Eng. Part B-J. Eng. Manuf.
PY 2010
VL 224
IS B4
BP 609
EP 625
DI 10.1243/09544054JEM1750
PG 17
WC Engineering, Manufacturing; Engineering, Mechanical
SC Engineering
GA 594IH
UT WOS:000277529600007
ER
PT J
AU Fresconi, F
Plostins, P
AF Fresconi, F.
Plostins, P.
TI Control mechanism strategies for spin-stabilized projectiles
SO PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART G-JOURNAL OF
AEROSPACE ENGINEERING
LA English
DT Article
DE precision munition; spin-stabilized projectile; flight dynamics;
guidance and control
AB Spin-stabilized artillery munitions were originally designed to provide precise ballistic fire on long-range targets. Today, the challenge is to use these ballistic munitions in urban operations where significantly higher levels of precision are required to minimize collateral damage. One strategy is to retrofit these munitions with some level of low-cost precision. Unique challenges arise when munitions designed to be ballistically precise are guided. Projectile flight is often stabilized by a high spin rate, which induces complex dynamics. Flight mechanics are further aggravated by adding a control mechanism. The goal of this study was to provide a fundamental understanding of various control mechanism strategies for spin-stabilized projectiles. Flight control systems were developed and executed in a six-degree-of-freedom simulation. Formulating a generalized model of a control mechanism allowed us to investigate parameters such as control force magnitude, control axial location, control lift-to-drag ratio, and control force duration for a spin-stabilized projectile. Results show that control authority linearly relates to control force magnitude. Maximal control authority was obtained by placing the control mechanism at the rear of the projectile. The variation with axial location was also determined since these results are valuable, for instance, when the control is unable to be located near the projectile base. A lower lift-to-drag ratio of the control mechanism decreased control authority and maximum range. Lastly, the trade-offs associated with continuous and pulsed flight control systems were quantified. Physical explanations for the simulation results are provided.
C1 [Fresconi, F.] USA, Res Lab, Weap & Mat Res Directorate, Aberdeen Proving Ground, MD 21015 USA.
RP Fresconi, F (reprint author), USA, Res Lab, Weap & Mat Res Directorate, B4600,R2042, Aberdeen Proving Ground, MD 21015 USA.
EM frank.fresconi@arl.army.mil
NR 12
TC 15
Z9 15
U1 3
U2 6
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 0954-4100
J9 P I MECH ENG G-J AER
JI Proc. Inst. Mech. Eng. Part G-J. Aerosp. Eng.
PY 2010
VL 224
IS G9
BP 979
EP 991
DI 10.1243/09544100JAERO705
PG 13
WC Engineering, Aerospace; Engineering, Mechanical
SC Engineering
GA 642JQ
UT WOS:000281209100003
ER
PT J
AU Lee, TK
Kramer, D
Filipi, Z
AF Lee, T-K
Kramer, D.
Filipi, Z.
TI High-degree-of-freedom engine modelling for control design using a
crank-angle-resolved flame propagation simulation and artificial neural
network surrogate models
SO PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART I-JOURNAL OF
SYSTEMS AND CONTROL ENGINEERING
LA English
DT Article
DE control-oriented model; engine; simulation; control; combustion model;
artificial neural network
AB Non-linearity of the engine system creates a challenge in building a reliable control-oriented model (COM). The main source of non-linearity is the complex nature of the combustion process. Modern engine system configurations are increasingly complex and predicting their transient response poses additional difficulty. In the present paper, a COM is developed to address the challenges and capture the behaviour of a high-degree-of-freedom engine system. Engine combustion models are created by utilizing the high-fidelity engine cycle simulation to characterize the effects of main parameters, such as turbulence, air fuel ratio, and residual fraction, and subsequently capturing the interrelationships with artificial neural networks. Then, system dynamics are accounted for by adding manifold and actuator dynamics models. The capabilities of the proposed COM are demonstrated using a spark-ignition engine with a dual-independent cam phasing as a test case. The results indicate the model's ability to accurately predict engine responses to an arbitrary schedule of engine control inputs over the feasible operating range.
C1 [Filipi, Z.] Univ Michigan, Automot Res Ctr, Dept Mech Engn, Ann Arbor, MI 48109 USA.
[Kramer, D.] USA, RDECOM TARDEC, Warren, MI USA.
RP Filipi, Z (reprint author), Univ Michigan, Automot Res Ctr, Dept Mech Engn, Ann Arbor, MI 48109 USA.
NR 22
TC 3
Z9 3
U1 0
U2 0
PU PROFESSIONAL ENGINEERING PUBLISHING LTD
PI WESTMINISTER
PA 1 BIRDCAGE WALK, WESTMINISTER SW1H 9JJ, ENGLAND
SN 0959-6518
J9 P I MECH ENG I-J SYS
JI Proc. Inst. Mech. Eng. Part I-J Syst Control Eng.
PY 2010
VL 224
IS I6
BP 747
EP 761
DI 10.1243/09596518JSCE908
PG 15
WC Automation & Control Systems
SC Automation & Control Systems
GA 665IA
UT WOS:000283027400012
ER
PT J
AU Russell, K
Shen, Q
Lee, WT
Sodhi, RS
AF Russell, K.
Shen, Q.
Lee, W-T
Sodhi, R. S.
TI On the synthesis of spatial revolute-revolute-spherical-cylindrical
motion generators with prescribed coupler loads
SO PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART K-JOURNAL OF
MULTI-BODY DYNAMICS
LA English
DT Article
DE motion generation; revolute-revolute-spherical-cylindrical mechanism;
static torque; coupler load
ID KINEMATIC SYNTHESIS; MECHANISMS; LINKAGES; PLANAR; FORCE
AB This work extends the concepts and methodologies of Shen et al. for the synthesis of spherical four-bar motion generators to the synthesis of spatial revolute-revolute-spherical-cylindrical (RRSC) motion generators with applied coupler loads. A constraint that includes coupler loads and driver static torques for the RRSC mechanism is formulated using the principle of virtual work. This constraint is combined with the conventional constraints for the R-R and C-S dyads to forma non-linear optimization problem from which RRSC mechanism solutions are calculated that approximate prescribed coupler poses and satisfy prescribed driver static torques for given coupler loads. The formulated RRSC coupler load and driver static torque constraint are also incorporated in a simplified RRSC motion generation model to forma simplified non-linear optimization problem for calculating RRSC mechanism solutions. This work demonstrates both the conventional and simplified non-linear optimization problems.
C1 [Russell, K.] USA, Armaments Engn & Technol Ctr, Res Dev & Engn Ctr, Picatinny Arsenal, NJ 07806 USA.
[Shen, Q.; Sodhi, R. S.] New Jersey Inst Technol, Dept Mech Engn, Newark, NJ 07102 USA.
[Lee, W-T] Leader Univ, Dept Comp Sci & Applicat, Tainan, Taiwan.
RP Russell, K (reprint author), USA, Armaments Engn & Technol Ctr, Res Dev & Engn Ctr, Picatinny Arsenal, NJ 07806 USA.
EM kevruss@comcast.net
NR 21
TC 0
Z9 0
U1 0
U2 0
PU PROFESSIONAL ENGINEERING PUBLISHING LTD
PI WESTMINISTER
PA 1 BIRDCAGE WALK, WESTMINISTER SW1H 9JJ, ENGLAND
SN 1464-4193
J9 P I MECH ENG K-J MUL
JI Proc. Inst. Mech Eng Pt K-J Multi-Body Dyn.
PY 2010
VL 224
IS K2
BP 183
EP 190
DI 10.1243/14644193JMBD231
PG 8
WC Engineering, Mechanical; Mechanics
SC Engineering; Mechanics
GA 611HZ
UT WOS:000278807000005
ER
PT S
AU Cheng, HP
Cheng, JRC
Hunter, RM
Campbell, T
Lin, HC
AF Cheng, H. -P.
Cheng, J. -R. C.
Hunter, R. M.
Campbell, T.
Lin, H. -C.
BE Topping, BHV
Adam, JM
Pallares, FJ
Bru, R
Romero, ML
TI COSM: A Parallel Coupled Ocean Watershed Model
SO PROCEEDINGS OF THE SEVENTH INTERNATIONAL CONFERENCE ON ENGINEERING
COMPUTATIONAL TECHNOLOGY
SE Civil-Comp Proceedings
LA English
DT Proceedings Paper
CT 7th International Conference on Engineering Computational Technology
CY SEP 14-17, 2010
CL Valencia, SPAIN
DE ESMF; DBuilder; model coupling; high performance computing; ADCIRC;
pWASH123D
AB This paper describes the development of a parallel, unstructured-mesh, coupled ocean-watershed model (COSM) designed for high resolution modelling within a high performance computing environment. The COSM model couples the pWASH123D model for simulation of water flow on the land with the ADCIRC model for storm induced ocean circulation and surge. These two models are coupled in a concurrent mode with time lagging using the Earth System Modelling Framework and the DBuilder toolkits. New techniques developed in this research include the coupling methodology and element searching algorithms used to combine the models. A simplified simulation of Biloxi Bay is used to demonstrate the capabilities and performance of COSM.
C1 [Cheng, H. -P.; Cheng, J. -R. C.; Hunter, R. M.; Lin, H. -C.] US Army Engineer Res & Dev Ctr, Vicksburg, MS 39180 USA.
[Campbell, T.] Naval Res Lab, Bay St Louis, MS USA.
RP Cheng, HP (reprint author), US Army Engineer Res & Dev Ctr, Vicksburg, MS 39180 USA.
FU DoD High Performance Computing Modernization Program (HPCMP); System
wide Water Resources Program (SWWRP); US Army Corps of Engineers
FX This work was supported in part by the DoD High Performance Computing
Modernization Program (HPCMP) and in part by the System wide Water
Resources Program (SWWRP) of the US Army Corps of Engineers.
NR 9
TC 0
Z9 0
U1 0
U2 0
PU CIVIL COMP PRESS
PI EDINBURGH
PA 10 SAXE-COBURG PLACE, EDINBURGH EH3 5BR, MIDLOTHIAN, SCOTLAND
SN 1759-3433
BN 978-1-905088-41-6
J9 CIVIL-COMP PROCEED
PY 2010
VL 94
PG 19
WC Computer Science, Interdisciplinary Applications; Engineering,
Multidisciplinary; Mathematics, Applied
SC Computer Science; Engineering; Mathematics
GA BG8LP
UT WOS:000392420200014
ER
PT S
AU Cheng, JRC
Cheng, HP
Farthing, MW
AF Cheng, J. R. C.
Cheng, H. P.
Farthing, M. W.
BE Topping, BHV
Adam, JM
Pallares, FJ
Bru, R
Romero, ML
TI Computation of Locally Mass-Conservative Flow Flux in Multidimensions
SO PROCEEDINGS OF THE SEVENTH INTERNATIONAL CONFERENCE ON ENGINEERING
COMPUTATIONAL TECHNOLOGY
SE Civil-Comp Proceedings
LA English
DT Proceedings Paper
CT 7th International Conference on Engineering Computational Technology
CY SEP 14-17, 2010
CL Valencia, SPAIN
DE locally conservative flux; finite element; parallel computing; software
toolkit; and face/edge library
AB This paper presents a parallel software toolkit for calculating locally conservative flux in parallel computing. The toolkit includes two approaches for conservative flux computation, where both approaches were derived based on the Larson-Niklasson method. The two-dimensional (2-D) formulation and the software toolkit development are described. A San Diego Bay example was used to test the developed software toolkit.
C1 [Cheng, J. R. C.] US Army Engineer Res & Dev Ctr, Dept Def Supercomputing Resource Ctr, Informat Technol Lab, Vicksburg, MS 39180 USA.
[Cheng, H. P.; Farthing, M. W.] US Army Engineer Res & Dev Ctr, Coastal & Hydraul Lab, Vicksburg, MS USA.
RP Cheng, JRC (reprint author), US Army Engineer Res & Dev Ctr, Dept Def Supercomputing Resource Ctr, Informat Technol Lab, Vicksburg, MS 39180 USA.
FU U.S. Army Corps System-Wide Water Resources Program (SWWRP); U.S. Army
Corps of Engineers allows presentation; DoD High Performance Computing
Modernization Program
FX This study was supported by the U.S. Army Corps System-Wide Water
Resources Program (SWWRP), and the chief of the U.S. Army Corps of
Engineers allows presentation of it. It was also supported in part by an
allocation of computer time from the DoD High Performance Computing
Modernization Program.
NR 7
TC 0
Z9 0
U1 0
U2 0
PU CIVIL COMP PRESS
PI EDINBURGH
PA 10 SAXE-COBURG PLACE, EDINBURGH EH3 5BR, MIDLOTHIAN, SCOTLAND
SN 1759-3433
BN 978-1-905088-41-6
J9 CIVIL-COMP PROCEED
PY 2010
VL 94
PG 15
WC Computer Science, Interdisciplinary Applications; Engineering,
Multidisciplinary; Mathematics, Applied
SC Computer Science; Engineering; Mathematics
GA BG8LP
UT WOS:000392420200012
ER
PT J
AU Buller, MJ
Tharion, WJ
Hoyt, RW
Jenkins, OC
AF Buller, Mark J.
Tharion, William J.
Hoyt, Reed W.
Jenkins, Odest Chadwicke
GP AAAI
TI Estimation of Human Internal Temperature from Wearable Physiological
Sensors
SO PROCEEDINGS OF THE TWENTY-FOURTH AAAI CONFERENCE ON ARTIFICIAL
INTELLIGENCE (AAAI-10)
LA English
DT Proceedings Paper
CT 24th AAAI Conference on Artificial Intelligence (AAAI)
CY JUL 11-15, 2010
CL Atlanta, GA
SP Assoc Advancement Artificial Intelligence
ID CORE TEMPERATURE; PREDICTION; PROGRESS; MODEL
AB We evaluated a Kalman filter (KF) approach to modeling the physiology of internal temperature viewed through "noisy" non-invasive observations of heart rate. Human core body temperature (Tcore) is an important measure of thermal state, e.g., hypo-or hyperthermia, but is difficult to measure using non-invasive wearable sensors. We estimated parameters for a discrete KF model from data collected during several Military training events and from distance runners (n=38). Model performance was evaluated in 25 physically-active subjects who participated in various laboratory and field studies involving exercise of 2-to-8 h duration at ambient temperatures of 20 to 40 degrees C. Overall, the KF model's estimate of Tcore had a root mean square error of 0.30 +/- 0.13 degrees C from the observed Tcore, and was within +/- 0.5 degrees C over 85% of the time. The benefit of the KF approach is that it requires only one input while current state of the art models typically require multiple inputs including individual anthropometrics, metabolic rate, clothing characteristics, and environmental conditions. This state estimation problem in computational physiology illustrates the potential for collaboration between the artificial intelligence and ambulatory physiological monitoring communities.
C1 [Buller, Mark J.; Jenkins, Odest Chadwicke] Brown Univ, Dept Comp Sci, Providence, RI 02912 USA.
[Buller, Mark J.; Tharion, William J.; Hoyt, Reed W.] US Army, Environm Med Res Inst, Natick, MA 01760 USA.
RP Buller, MJ (reprint author), Brown Univ, Dept Comp Sci, Providence, RI 02912 USA.
EM mbuller@cs.brown.edu; william.tharion@us.army.mil;
reed.hoyt@us.army.mil; cjenkins@cs.brown.edu
NR 21
TC 5
Z9 5
U1 0
U2 0
PU ASSOC ADVANCEMENT ARTIFICIAL INTELLIGENCE
PI PALO ALTO
PA 2275 E BAYSHORE RD, STE 160, PALO ALTO, CA 94303 USA
BN 978-1-57735-463-5
PY 2010
BP 1763
EP 1768
PG 6
WC Computer Science, Artificial Intelligence
SC Computer Science
GA BG7ZA
UT WOS:000392059700282
ER
PT J
AU Tracy, FT
AF Tracy, Fred T.
BE Carrera, J
SanchezVila, X
FernandezGarcia, D
Bolster, D
TI A DESCRIPTION OF LINEAR AND NONLINEAR SOLVER FAILURES AND CURES FOR
UNSATURATED FLOW CALCULATIONS
SO PROCEEDINGS OF THE XVIII INTERNATIONAL CONFERENCE ON COMPUTATIONAL
METHODS IN WATER RESOURCES (CMWR 2010)
LA English
DT Proceedings Paper
CT 18th International Conference on Computational Methods in Water
Resources (CMWR)
CY JUN 21-24, 2010
CL Barcelona, SPAIN
DE Numerical methods; unsaturated flow; linear and nonlinear solvers
AB This breakdown of the linear system of equations observed in a three-dimensional (3-D) parallel finite element solution of unsaturated flow using Newton's method is illustrated using the one-dimensional (1-D) solution of the Green-Ampt infiltration problem. Causes and cures are then described.
C1 DoD Supercomp Resource Ctr, Engn Res & Dev Ctr, Informat Technol Lab, Vicksburg, MS 39180 USA.
RP Tracy, FT (reprint author), DoD Supercomp Resource Ctr, Engn Res & Dev Ctr, Informat Technol Lab, Vicksburg, MS 39180 USA.
EM Fred.T.Tracy@usace.army.mil
NR 8
TC 0
Z9 0
U1 0
U2 0
PU INT CENTER NUMERICAL METHODS ENGINEERING
PI 08034 BARCELONA
PA GRAN CAPITAN, S-N, CAMPUS NORTE UPC, MODULO C1, 08034 BARCELONA, SPAIN
BN 978-84-96736-93-1
PY 2010
BP 200
EP 207
PG 8
WC Computer Science, Information Systems; Water Resources
SC Computer Science; Water Resources
GA BXU68
UT WOS:000297163600018
ER
PT J
AU Kees, CE
Farthing, MW
Akkerman, I
Bazilevs, Y
AF Kees, C. E.
Farthing, M. W.
Akkerman, I.
Bazilevs, Y.
BE Carrera, J
SanchezVila, X
FernandezGarcia, D
Bolster, D
TI A HYBRID LEVEL-SET METHOD FOR FREE-SURFACE FLOWS
SO PROCEEDINGS OF THE XVIII INTERNATIONAL CONFERENCE ON COMPUTATIONAL
METHODS IN WATER RESOURCES (CMWR 2010)
LA English
DT Proceedings Paper
CT 18th International Conference on Computational Methods in Water
Resources (CMWR)
CY JUN 21-24, 2010
CL Barcelona, SPAIN
DE level-set methods; two-phase Navier-Stokes models; mass conservation
ID 2-PHASE FLOWS; SIMULATION; EQUATIONS
AB Two-phase Navier-Stokes models are becoming increasingly popular for modeling free-surface flows and hydrodynamic processes. They hold particular appeal for problems where full vertical resolution is required in velocity and pressure, (e. g., short-wave phenomena, flow around coastal structures and levees, and extreme erosion processes). Level-set and volume-of-fluid formulations are the two most common approaches for modeling two-phase flows and both can be used across many flow regimes. Both share an advantage over front-tracking methods in that they are robust through changes in connectivity of the phases such as during bubble formation and wave breaking.
However, standard level-set methods do not conserve mass. The conservation errors are the result of describing interface dynamics using a level-set formulation and are not specific to the discrete approximation. Since conservation errors accumulate to produce qualitatively incorrect solutions, several researchers have attempted to address this issue by using hybrid level-set/volume-of-fluid and hybrid level-set/particle-tracking approaches. In this work we present a method for correcting the level set in order to control mass conservation error. The correction is defined as the solution of a nonlinear reaction-diffusion equation and can be applied to higher order finite element methods on unstructured meshes. Numerical results are presented for linear and quadratic approximations of incompressible air/water flows.
C1 [Kees, C. E.; Farthing, M. W.] USA, Engineer Res & Dev Ctr, Coastal & Hydraul Lab, Vicksburg, MS 39180 USA.
RP Kees, CE (reprint author), USA, Engineer Res & Dev Ctr, Coastal & Hydraul Lab, 3909 Halls Ferry Rd, Vicksburg, MS 39180 USA.
EM christopher.e.kees@usace.army.mil; matthew.w.farthing@usace.army.mil;
iakkerman@ucsd.edu; yuri@ucsd.edu
NR 20
TC 0
Z9 0
U1 0
U2 6
PU INT CENTER NUMERICAL METHODS ENGINEERING
PI 08034 BARCELONA
PA GRAN CAPITAN, S-N, CAMPUS NORTE UPC, MODULO C1, 08034 BARCELONA, SPAIN
BN 978-84-96736-93-1
PY 2010
BP 1181
EP 1188
PG 8
WC Computer Science, Information Systems; Water Resources
SC Computer Science; Water Resources
GA BXU68
UT WOS:000297163600130
ER
PT J
AU Kees, CE
Farthing, MW
Mattis, SA
Dawson, CN
AF Kees, Christopher E.
Farthing, Matthew W.
Mattis, Steven A.
Dawson, Clint N.
BE Carrera, J
SanchezVila, X
FernandezGarcia, D
Bolster, D
TI HOMOGENIZATION AND UPSCALING OF FLOW THROUGH VEGETATION
SO PROCEEDINGS OF THE XVIII INTERNATIONAL CONFERENCE ON COMPUTATIONAL
METHODS IN WATER RESOURCES (CMWR 2010)
LA English
DT Proceedings Paper
CT 18th International Conference on Computational Methods in Water
Resources (CMWR)
CY JUN 21-24, 2010
CL Barcelona, SPAIN
DE Computational hydraulics; homogenization; upscaling; vegetation
AB Vegetated marshes and wetlands are complex hydrological systems. Due primarily to computational constraints, the effects of vegetation must be incorporated into depth-integrated flow models through empirical or theoretical resistance parameterizations that are closely related to the classical Chezy, Manning, and Darcy laws for surface roughness and porous media. In this work we investigate the use of homogenization techniques and multi-scale numerical modeling to represent the effect of vegetation on shallow water flow. In particular, we use highly resolved two-and three-dimensional numerical models of flow through computer-generated vegetated, flow domains along with modern volume averaging and homogenization techniques to better understand flow resistance in various flow regimes. The numerical models use unstructured meshes to resolve complex geometry, and the variational multi-scale (finite element) method to resolve steady and unsteady, low and high Reynolds number flows.
C1 [Kees, Christopher E.; Farthing, Matthew W.] USA, Engineer Res & Dev Ctr, Coastal & Hydraul Lab, Vicksburg, MS 39180 USA.
RP Kees, CE (reprint author), USA, Engineer Res & Dev Ctr, Coastal & Hydraul Lab, 3909 Halls Ferry Rd, Vicksburg, MS 39180 USA.
EM christopher.e.kees@usace.army.mil; matthew.w.farthing@usace.army.mil;
steven@ices.utexas.edu; clint@ices.utexas.edu
NR 7
TC 0
Z9 0
U1 0
U2 2
PU INT CENTER NUMERICAL METHODS ENGINEERING
PI 08034 BARCELONA
PA GRAN CAPITAN, S-N, CAMPUS NORTE UPC, MODULO C1, 08034 BARCELONA, SPAIN
BN 978-84-96736-93-1
PY 2010
BP 1189
EP 1196
PG 8
WC Computer Science, Information Systems; Water Resources
SC Computer Science; Water Resources
GA BXU68
UT WOS:000297163600131
ER
PT S
AU French, LM
AF French, Louis M.
BE Barchas, JD
Difede, J
TI Military traumatic brain injury: an examination of important differences
SO PSYCHIATRIC AND NEUROLOGIC ASPECTS OF WAR
SE Annals of the New York Academy of Sciences
LA English
DT Article; Proceedings Paper
CT 89th Annual Conference of the Association for Research in Nervous and
Mental Disease
CY DEC 16, 2009
CL Rockefeller Univ, New York, NY
HO Rockefeller Univ
DE military TBI; mild TBI; blast injury; war trauma
ID POSTTRAUMATIC-STRESS-DISORDER; OPERATION-IRAQI-FREEDOM; PENETRATING
HEAD-INJURY; POLYTRAUMA REHABILITATION; SERVICE MEMBERS; BLAST EXPOSURE;
MENTAL-HEALTH; COMBAT DUTY; US; SOLDIERS
AB Traumatic brain injury, especially mild traumatic brain injury, is a common consequence of modern warfare. In the current conflicts in Iraq and Afghanistan, much attention has been devoted to blast as a "new" mechanism of brain injury. While the evidence for primary blast effects upon the central nervous system is limited and controversial, there are a number of aspects of blast-induced brain injury that may be different. These include high rates of sensory impairment, pain issues, and polytrauma. In addition, the emotional context in which the injury occurred must also be considered in understanding the clinical presentation of these patients. Successful treatment of these individuals must use a multidisciplinary approach focused on the varied conditions that occur in those injured.
C1 [French, Louis M.] Walter Reed Army Med Ctr, Dept Orthopaed & Rehabil, Washington, DC 20307 USA.
[French, Louis M.] Walter Reed Army Med Ctr, Def & Vet Brain Injury Ctr, Washington, DC 20307 USA.
[French, Louis M.] Natl Naval Med Ctr, Washington, DC USA.
[French, Louis M.] Uniformed Serv Univ Hlth Sci, Dept Neurol, Bethesda, MD 20814 USA.
RP French, LM (reprint author), Walter Reed Army Med Ctr, Dept Orthopaed & Rehabil, MATC Bldg 2A,Room 203,6900 Georgia Ave NW, Washington, DC 20307 USA.
EM louis.french@us.army.mil
NR 70
TC 23
Z9 23
U1 1
U2 6
PU BLACKWELL PUBLISHING
PI OXFORD
PA 9600 GARSINGTON RD, OXFORD OX4 2DQ, OXEN, ENGLAND
SN 0077-8923
BN 978-1-57331-804-4
J9 ANN NY ACAD SCI
JI Ann.NY Acad.Sci.
PY 2010
VL 1208
BP 38
EP 45
DI 10.1111/j.1749-6632.2010.05696.x
PG 8
WC Neurosciences; Psychiatry
SC Neurosciences & Neurology; Psychiatry
GA BSK28
UT WOS:000284742000006
PM 20955324
ER
PT S
AU Roy, MJ
Francis, J
Friedlander, J
Banks-Williams, L
Lande, RG
Taylor, P
Blair, J
McLellan, J
Law, W
Tarpley, V
Patt, I
Yu, H
Mallinger, A
Difede, J
Rizzo, A
Rothbaum, B
AF Roy, Michael J.
Francis, Jennifer
Friedlander, Joshua
Banks-Williams, Lisa
Lande, Raymond G.
Taylor, Patricia
Blair, James
McLellan, Jennifer
Law, Wendy
Tarpley, Vanita
Patt, Ivy
Yu, Henry
Mallinger, Alan
Difede, Joann
Rizzo, Albert
Rothbaum, Barbara
BE Barchas, JD
Difede, J
TI Improvement in cerebral function with treatment of posttraumatic stress
disorder
SO PSYCHIATRIC AND NEUROLOGIC ASPECTS OF WAR
SE Annals of the New York Academy of Sciences
LA English
DT Article; Proceedings Paper
CT 89th Annual Conference of the Association for Research in Nervous and
Mental Disease
CY DEC 16, 2009
CL Rockefeller Univ, New York, NY
HO Rockefeller Univ
DE posttraumatic stress disorder; traumatic brain injury; combat stress;
functional magnetic resonance imaging; virtual reality; exposure therapy
ID DEPRESSION INVENTORY-II; REALITY EXPOSURE THERAPY; ADMINISTERED PTSD
SCALE; TRAUMATIC BRAIN-INJURY; BECK DEPRESSION; NEURAL RESPONSES;
PHYSICAL HEALTH; FEARFUL FACES; PRIMARY-CARE; IRAQ
AB Posttraumatic stress disorder (PTSD) and mild traumatic brain injury (mTBI) are signature illnesses of the Iraq and Afghanistan wars, but current diagnostic and therapeutic measures for these conditions are suboptimal. In our study, functional magnetic resonance imaging (fMRI) is used to try to differentiate military service members with: PTSD and mTBI, PTSD alone, mTBI alone, and neither PTSD nor mTBI. Those with PTSD are then randomized to virtual reality exposure therapy or imaginal exposure. fMRI is repeated after treatment and along with the Clinician-Administered PTSD Scale (CAPS) and Clinical Global Impression (CGI) scores to compare with baseline. Twenty subjects have completed baseline fMRI scans, including four controls and one mTBI only; of 15 treated for PTSD, eight completed posttreatment scans. Most subjects have been male (93%) and Caucasian (83%), with a mean age of 34. Significant improvements are evident on fMRI scans, and corroborated by CGI scores, but CAPS scores improvements are modest. In conclusion, CGI scores and fMRI scans indicate significant improvement in PTSD in both treatment arms, though CAPS score improvements are less robust.
C1 [Roy, Michael J.; Francis, Jennifer; Friedlander, Joshua; Banks-Williams, Lisa; Lande, Raymond G.; Taylor, Patricia; Law, Wendy; Tarpley, Vanita; Patt, Ivy] Uniformed Serv Univ Hlth Sci, Bethesda, MD USA.
[Roy, Michael J.; Francis, Jennifer; Friedlander, Joshua; Banks-Williams, Lisa; Lande, Raymond G.; Taylor, Patricia; Law, Wendy; Tarpley, Vanita; Patt, Ivy] Walter Reed Army Med Ctr, Washington, DC 20307 USA.
[Blair, James; McLellan, Jennifer; Yu, Henry; Mallinger, Alan] NIMH, NIH, Bethesda, MD 20892 USA.
[Difede, Joann] Cornell Univ, Weill Med Coll, New York, NY 10021 USA.
[Rizzo, Albert] Univ So Calif, Inst Creat Technol, Los Angeles, CA USA.
[Rothbaum, Barbara] Emory Univ, Sch Med, Atlanta, GA USA.
RP Roy, MJ (reprint author), Uniformed Serv Univ Hlth Sci, Dept Med, Room A3062,4301 Jones Bridge Rd, Bethesda, MD 20814 USA.
EM mroy@usuhs.mil
NR 38
TC 35
Z9 35
U1 3
U2 14
PU BLACKWELL PUBLISHING
PI OXFORD
PA 9600 GARSINGTON RD, OXFORD OX4 2DQ, OXEN, ENGLAND
SN 0077-8923
BN 978-1-57331-804-4
J9 ANN NY ACAD SCI
JI Ann.NY Acad.Sci.
PY 2010
VL 1208
BP 142
EP 149
DI 10.1111/j.1749-6632.2010.05689.x
PG 8
WC Neurosciences; Psychiatry
SC Neurosciences & Neurology; Psychiatry
GA BSK28
UT WOS:000284742000018
PM 20955336
ER
PT J
AU de Leon, J
Wynn, G
Sandson, NB
AF de Leon, Jose
Wynn, Gary
Sandson, Neil B.
TI The Pharmacokinetics of Paliperidone Versus Risperidone
SO PSYCHOSOMATICS
LA English
DT Article
ID EXTENDED-RELEASE TABLETS; LONG-ACTING RISPERIDONE; DRUG-DRUG
INTERACTIONS; P-GLYCOPROTEIN; ANTIPSYCHOTIC-DRUGS; IN-VITRO;
DOUBLE-BLIND; ATYPICAL ANTIPSYCHOTICS; METABOLIZER PHENOTYPE; SERUM
CONCENTRATIONS
AB Background: Several new atypical antipsychotics have become available for use, but knowledge about their pharmacology may not be widespread. Objective: This review aims to increase awareness and knowledge about risperidone (R) and paliperidone (9-hydroxyrisperidone [9-OHR]), their pharmacokinetics, and pharmacodynamics. Method: The authors present a review of the literature on R and 9-OHR. Results: Oral R may be approximately twice as potent as oral 9-OHR. Levels of R and 9-OHR in R-treated patients may help clinicians prescribe 9-OHR. In R-treated patients, the R/9-OHR concentration ratio is an index of CYP2D6 activity; an inverted ratio (> 1) indicates a CYP2D6 poor metabolizer (PM) or the presence of a powerful CYP2D6 inhibitor. The concentration-to-dose (C/D) ratio, where C includes R + 9-OHR, is an index of total clearance from the body. A C/D ratio decreased by half is associated with CYP3A inducers or a lack of compliance, whereas an increased C/D ratio may indicate CYP2D6 PM phenotype, use of CYP2D6 and/or CYP3A4 inhibitors, or, possibly, renal insufficiency. In in-vitro studies, R and 9-OHR have similar receptor binding (except for blocking alpha(1)). 9-OHR may have less ability to enter the brain because of greater affinity for the transporter P-glycoprotein. The limited available paliperidone pharmacokinetic information suggests that there are four minor metabolic pathways. In contrast to R treatment, being a CYP2D6 PM may not be clinically relevant for paliperidone treatment. Information on paliperidone drug-drug interactions is limited. Renal excretion may be the major route of paliperidone elimination. Conclusion: Clinicians can use R/9-OHR and the C/D ratios to interpret plasma R levels and guide treatment. (Psychosomatics 2010; 51: 80-88)
C1 [de Leon, Jose] Eastern State Hosp, Mental Hlth Res Ctr, Lexington, KY 40508 USA.
Walter Reed Army Med Ctr, Dept Psychiat, Washington, DC 20307 USA.
Univ Maryland, Sch Med, Dept Psychiat, Baltimore, MD 21201 USA.
RP de Leon, J (reprint author), Eastern State Hosp, Mental Hlth Res Ctr, 627 W 4th St, Lexington, KY 40508 USA.
EM jdeleon@uky.edu
RI Wynn, Gary/B-3618-2011; de Leon, Jose/F-2709-2013
OI de Leon, Jose/0000-0002-7756-2314
NR 88
TC 52
Z9 53
U1 0
U2 8
PU AMER PSYCHIATRIC PUBLISHING, INC
PI ARLINGTON
PA 1000 WILSON BOULEVARD, STE 1825, ARLINGTON, VA 22209-3901 USA
SN 0033-3182
J9 PSYCHOSOMATICS
JI Psychosomatics
PD JAN-FEB
PY 2010
VL 51
IS 1
BP 80
EP 88
PG 9
WC Psychiatry; Psychology
SC Psychiatry; Psychology
GA 550SC
UT WOS:000274148500013
PM 20118446
ER
PT J
AU Reed, NG
AF Reed, Nicholas G.
TI The History of Ultraviolet Germicidal Irradiation for Air Disinfection
SO PUBLIC HEALTH REPORTS
LA English
DT Editorial Material
ID UPPER-ROOM AIR; ULTRA-VIOLET LIGHT; RURAL CENTRAL SCHOOLS; AIRBORNE
MICROORGANISMS; SERRATIA-MARCESCENS; BACTERICIDAL ACTION;
RELATIVE-HUMIDITY; BORNE INFECTION; OPERATING-ROOM;
ENVIRONMENTAL-FACTORS
AB Public health concerns such as multi- and extensive drug-resistant tuberculosis, bioterrorism, pandemic influenza, and severe acute respiratory syndrome have intensified efforts to prevent transmission of infections that are completely or partially airborne using environmental controls. One such control, ultraviolet germicidal irradiation (UVGI), has received renewed interest after decades of underutilization and neglect. With renewed interest, however, come renewed questions, especially regarding efficacy and safety. There is a long history of investigations concluding that, if used properly, UVGI can be safe and highly effective in disinfecting the air, thereby preventing transmission of a variety of airborne infections. Despite this long history, many infection control professionals are not familiar with the history of UVGI and how it has, and has not, been used safely and effectively. This article reviews that history of UVGI for air disinfection, starting with its biological basis, moving to its application in the real world, and ending with its current status.
C1 [Reed, Nicholas G.] USA, Ctr Hlth Promot & Prevent Med, Laser Opt Radiat Program, Aberdeen Proving Ground, MD USA.
RP Reed, NG (reprint author), MCHB TS OLO, 5158 Blackhawk Rd, Aberdeen Proving Ground, MD 21010 USA.
EM nick.g.reed@us.army.mil
NR 158
TC 21
Z9 23
U1 1
U2 12
PU ASSOC SCHOOLS PUBLIC HEALTH
PI WASHINGTON
PA 1101 15TH ST NW, STE 910, WASHINGTON, DC 20005 USA
SN 0033-3549
J9 PUBLIC HEALTH REP
JI Public Health Rep.
PD JAN-FEB
PY 2010
VL 125
IS 1
BP 15
EP 27
PG 13
WC Public, Environmental & Occupational Health
SC Public, Environmental & Occupational Health
GA 535IN
UT WOS:000272961100005
PM 20402193
ER
PT S
AU Meyers, RE
Shih, YH
Deacon, KS
AF Meyers, Ronald E.
Shih, Yanhua
Deacon, Keith S.
BE Meyers, RE
Shih, Y
Deacon, KS
TI Introduction
SO QUANTUM COMMUNICATIONS AND QUANTUM IMAGING VIII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Quantum Communications and Quantum Imaging VIII
CY AUG 02-05, 2010
CL San Diego, CA
SP SPIE
C1 [Meyers, Ronald E.; Deacon, Keith S.] USA, Res Lab, Washington, DC 20310 USA.
RP Meyers, RE (reprint author), USA, Res Lab, Washington, DC 20310 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-311-9
J9 PROC SPIE
PY 2010
VL 7815
BP IX
EP X
PG 2
WC Optics; Imaging Science & Photographic Technology
SC Optics; Imaging Science & Photographic Technology
GA BSU47
UT WOS:000285827100001
ER
PT S
AU Meyers, RE
Deacon, KS
Shih, YH
AF Meyers, Ronald E.
Deacon, Keith S.
Shih, Yanhua
BE Meyers, RE
Shih, Y
Deacon, KS
TI Quantum Ghost Imaging
SO QUANTUM COMMUNICATIONS AND QUANTUM IMAGING VIII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Quantum Communications and Quantum Imaging VIII
CY AUG 02-05, 2010
CL San Diego, CA
SP SPIE
AB Quantum Ghost Imaging(QGI) has proven to be both a scientifically interesting field as well as one with many potential practical applications. In this paper we will review some of the scientifically fundamental aspects of Quantum Ghost Imaging and the supporting experiments including some recent results from the Army Research Laboratory.
C1 [Meyers, Ronald E.; Deacon, Keith S.] USA, Res Lab, Washington, DC 20310 USA.
RP Meyers, RE (reprint author), USA, Res Lab, Washington, DC 20310 USA.
NR 13
TC 1
Z9 1
U1 0
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-311-9
J9 PROC SPIE
PY 2010
VL 7815
AR 781506
DI 10.1117/12.864269
PG 10
WC Optics; Imaging Science & Photographic Technology
SC Optics; Imaging Science & Photographic Technology
GA BSU47
UT WOS:000285827100004
ER
PT S
AU Meyers, RE
Deacon, KS
AF Meyers, Ronald E.
Deacon, Keith S.
BE Meyers, RE
Shih, Y
Deacon, KS
TI Quantum Ghost Imaging Experiments at ARL
SO QUANTUM COMMUNICATIONS AND QUANTUM IMAGING VIII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Quantum Communications and Quantum Imaging VIII
CY AUG 02-05, 2010
CL San Diego, CA
SP SPIE
AB The first ghost image (GI) of an opaque object by Meyers et al.(1,2) demonstrated that GI has practical applications and inspired a series of variations used in reflective ghost imaging research. Here we report on some recent Ghost Imaging experiments using Compressive Imaging (CI) and Compressive Sensing (CS) conducted at the Army Research Laboratory. These experiments covered phenomena such as Compressive Turbulence-Free Ghost Imaging (CTFGI), and Compressive Ghost-Imaging-Inspired Imaging (CGIII).
C1 [Meyers, Ronald E.; Deacon, Keith S.] USA, Res Lab, Washington, DC 20310 USA.
RP Meyers, RE (reprint author), USA, Res Lab, Washington, DC 20310 USA.
NR 14
TC 4
Z9 4
U1 1
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-311-9
J9 PROC SPIE
PY 2010
VL 7815
AR 78150I
DI 10.1117/12.864270
PG 8
WC Optics; Imaging Science & Photographic Technology
SC Optics; Imaging Science & Photographic Technology
GA BSU47
UT WOS:000285827100012
ER
PT S
AU Tunick, A
Moore, T
Deacon, K
Meyers, R
AF Tunick, Arnold
Moore, Tyrnita
Deacon, Keith
Meyers, Ronald
BE Meyers, RE
Shih, Y
Deacon, KS
TI Review of Representative Free-Space Quantum Communications Experiments
SO QUANTUM COMMUNICATIONS AND QUANTUM IMAGING VIII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Quantum Communications and Quantum Imaging VIII
CY AUG 02-05, 2010
CL San Diego, CA
SP SPIE
DE entangled photons; Quantum Key Distribution; secure communications
ID KEY DISTRIBUTION; ATMOSPHERIC-TURBULENCE; SINGLE PHOTONS; ENTANGLEMENT;
CHANNEL; SYNCHRONIZATION; TELEPORTATION; CRYPTOGRAPHY; PROPAGATION;
LIGHT
AB Worldwide free-space quantum communications (QC) experiments over the past decade are reviewed and discussed with attention to technological QC trends. Experiments reported in the open literature have included those conducted along horizontal propagation paths of varying distances, as well as communication paths from ground-to-aircraft, ground-to-space, and demonstrations in the laboratory. Available data characterize propagation distances, transmission speeds, quantum key distribution (QKD) protocols, and quantum bit error rates (QBER). While fiber optic implementations of quantum communications technologies are currently being tested for communications infrastructure it is important to also consider that free-space quantum communications will play an important role in securing such applications as earth-to-satellite, end of line connects, and defense implementations.
C1 [Tunick, Arnold; Moore, Tyrnita; Deacon, Keith; Meyers, Ronald] USA, Res Lab, Adelphi, MD USA.
RP Tunick, A (reprint author), USA, Res Lab, 2800 Powder Mill Rd, Adelphi, MD USA.
EM ronald.meyers1@us.army.mil
NR 59
TC 3
Z9 3
U1 2
U2 13
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-311-9
J9 PROC SPIE
PY 2010
VL 7815
AR 781512
DI 10.1117/12.864271
PG 10
WC Optics; Imaging Science & Photographic Technology
SC Optics; Imaging Science & Photographic Technology
GA BSU47
UT WOS:000285827100023
ER
PT S
AU Brandt, HE
AF Brandt, Howard E.
BE Donkor, EJ
Pirich, AR
Brandt, HE
TI Jacobi fields in the Riemannian geometry of quantum computation
SO QUANTUM INFORMATION AND COMPUTATION VIII
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Quantum Information and Computation VIII
CY APR 08-09, 2010
CL Orlando, FL
SP SPIE
DE Riemannian geometry; geodesics; Jacobi fields
AB In the Riemannian geometry of quantum computation, the quantum evolution is described in terms of the special unitary group of n-qubit unitary operators with unit determinat. To elaborate on some aspects of the methodology, the generic Jacobi equation and lifted Jacobi equation, together with solutions on the group manifold, are explicitly derived. This is important for investigations of the global characteristics of geodesic paths in the group manifold, and the determination of optimal quantum circuits for carrying out a quantum computation.
C1 USA, Res Lab, Adelphi, MD USA.
RP Brandt, HE (reprint author), USA, Res Lab, Adelphi, MD USA.
EM hbrandt@arl.army.mil; hbrandt@arl.army.mil
NR 8
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8166-5
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7702
AR 770208
DI 10.1117/12.849648
PG 8
WC Computer Science, Interdisciplinary Applications; Engineering,
Electrical & Electronic; Optics
SC Computer Science; Engineering; Optics
GA BSO06
UT WOS:000285050700007
ER
PT S
AU Brandt, HE
AF Brandt, Howard E.
BE Donkor, EJ
Pirich, AR
Brandt, HE
TI Lifted Jacobi equation for varying penalty parameter in the Riemannian
geometry of quantum computation
SO QUANTUM INFORMATION AND COMPUTATION VIII
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Quantum Information and Computation VIII
CY APR 08-09, 2010
CL Orlando, FL
SP SPIE
DE quantum computing; quantum circuits; quantum complexity; Jacobi fields;
geodesics; geodesic derivative
AB Recent developments in the differential geometry of quantum computation are exposited. The quantum evolution is described in terms of the special unitary group of n-qubit unitary operators with unit determinant. The group manifold is taken to be Riemannian. In the present work, the lifted Jacobi equation for varying penalty parameter and geodesic derivative are reviewed. This is applicable to investigations of conjugate optimal quantum circuits for carrying out a quantum computation.
C1 USA, Res Lab, Adelphi, MD USA.
RP Brandt, HE (reprint author), USA, Res Lab, Adelphi, MD USA.
EM hbrandt@arl.army.mil; hbrandt@arl.army.mil
NR 6
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8166-5
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7702
AR 770205
DI 10.1117/12.849650
PG 11
WC Computer Science, Interdisciplinary Applications; Engineering,
Electrical & Electronic; Optics
SC Computer Science; Engineering; Optics
GA BSO06
UT WOS:000285050700004
ER
PT S
AU Yepez, J
Vahala, G
Vahala, L
Soe, M
AF Yepez, Jeffrey
Vahala, George
Vahala, Linda
Soe, Min
BE Donkor, EJ
Pirich, AR
Brandt, HE
TI Quantum lattice-gas model of spinor superfluids
SO QUANTUM INFORMATION AND COMPUTATION VIII
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Quantum Information and Computation VIII
CY APR 08-09, 2010
CL Orlando, FL
SP SPIE
ID CONDENSATE
AB Spinor Bose Einstein Condensates are intriguing because of their vast range of different topological vortices. These states occur when a BEC gas is trapped in an optical lattice rather than in a magnetic well (which would result in scalar BEC vortices). A spinor BEC states also occur in a quantum gas when several hyperfine states of the atom co-exist in the same trap. A unitary quantum lattice algorithm that is ideally parallelized to all available processors is used to solve the evolution of non-eigenstate Skyrmions in a coupled BEC system. The incompressible kinetic energy spectrum of the inner quantum vortex ring core rapidly deviates from the k(-3) spectrum found in the evolution of scalar BECs.
C1 [Yepez, Jeffrey] USA, Res Lab, Hanscom AFB, MA 01731 USA.
RP Yepez, J (reprint author), USA, Res Lab, Hanscom AFB, MA 01731 USA.
NR 5
TC 1
Z9 1
U1 0
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8166-5
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7702
AR 770209
DI 10.1117/12.850556
PG 9
WC Computer Science, Interdisciplinary Applications; Engineering,
Electrical & Electronic; Optics
SC Computer Science; Engineering; Optics
GA BSO06
UT WOS:000285050700008
ER
PT B
AU Brandt, HE
AF Brandt, Howard E.
BE Lomonaco, SJ
TI Riemannian Geometry of Quantum Computation
SO QUANTUM INFORMATION SCIENCE AND ITS CONTRIBUTIONS TO MATHEMATICS
SE Proceedings of Symposia in Applied Mathematics
LA English
DT Proceedings Paper
CT American-Mathematical-Society Short Course on Quantum Information
Science/Annual Meeting of the American-Mathematical-Society
CY JAN 03-04, 2009
CL Washington, DC
SP Amer Math Soc
DE quantum computing; quantum circuits; quantum complexity; differential
geometry; Riemannian geometry; geodesics; Lax equation; Jacobi fields
AB An introduction is given to some recent; developments in the differential geometry of quantum computation for which the quantum evolution is described by the special unitary unimodular group SU(2(n)). Using the Lie algebra su(2(n)), detailed derivations are given of a useful Riemannian geometry of SU(2(n)), including the connection, curvature, the geodesic equation for minimal complexity quantum computations, and the lifted Jacobi equation.
C1 USA, Res Lab, Adelphi, MD 20783 USA.
RP Brandt, HE (reprint author), USA, Res Lab, Adelphi, MD 20783 USA.
EM hbrandt@arl.army.mil
NR 45
TC 3
Z9 3
U1 1
U2 3
PU AMER MATHEMATICAL SOC
PI PROVIDENCE
PA P.O. BOX 6248, PROVIDENCE, RI 02940 USA
BN 978-0-8218-4828-9
J9 PROC SYM AP
PY 2010
VL 68
BP 61
EP 101
PG 41
WC Mathematics, Applied
SC Mathematics
GA BUK17
UT WOS:000289580300003
ER
PT S
AU Bandara, SV
AF Bandara, Sumith V.
BE Razeghi, M
Sudharasanan, R
Brown, GJ
TI Performance Analysis of InAs/Ga(In)Sb Strained Layer Superlattice
Detectors and Focal Plane Arrays
SO QUANTUM SENSING AND NANOPHOTONIC DEVICES VII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference On Quantum Sensing and Nanophotonic Devices VII
CY JAN 24-28, 2010
CL San Francisco, CA
SP SPIE
DE Long wavelength; Infrared; Focal Plane Arrays; Strained Layer
Superlattice
AB InAS/GaSb-based Type-II Strained-Layer Superlattice detectors (T2SLS) attract increasing interest for the development of high sensitivity large format mid-and long-wavelength infrared focal plane arrays. This paper will discuss the T2SLS detector performance requirements and readout integrated circuit (ROIC) noise levels for several staring array long-wavelength infrared (LWIR) imaging applications at various background levels. It will show a calculation of the dark current originated by various mechanisms and dependence on the minority carrier lifetime. Advanced heterojunction-based designs in T2SLS detector material have already demonstrated LWIR detectors with sufficient performance for tactical applications and potential for strategic applications. However, significant research is needed to suppress surface leakage current in order to reproduce performances at pixel levels of T2SLS focal plane arrays.
C1 USA, RDECOM CERDEC NVESD, Ft Belvoir, VA 22060 USA.
RP Bandara, SV (reprint author), USA, RDECOM CERDEC NVESD, Ft Belvoir, VA 22060 USA.
NR 18
TC 5
Z9 5
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8004-0
J9 PROC SPIE
PY 2010
VL 7608
AR 76081M
DI 10.1117/12.835430
PG 10
WC Automation & Control Systems; Computer Science, Artificial Intelligence;
Engineering, Electrical & Electronic; Nanoscience & Nanotechnology;
Optics
SC Automation & Control Systems; Computer Science; Engineering; Science &
Technology - Other Topics; Optics
GA BRR35
UT WOS:000283489000052
ER
PT S
AU Blakely, JN
Reed, BR
Corron, NJ
Stahl, MT
Myneni, K
AF Blakely, Jonathan N.
Reed, Billy R.
Corron, Ned J.
Stahl, Mark T.
Myneni, Krishna
BE Ranney, KI
Doerry, AW
TI Demonstration of shifter-less beam steering in an ultra-wide bandwidth
array antenna using synchronized chaos
SO RADAR SENSOR TECHNOLOGY XIV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Radar Sensor Technology XIV
CY APR 05-07, 2010
CL Orlando, FL
SP SPIE
DE phased array; chaos; synchronization; antenna
ID COLPITTS OSCILLATOR; AMBIGUITY FUNCTIONS; RADAR; SIGNALS
AB We demonstrate a new method for electronic beam steering in ultra-wide bandwidth array antennas based on synchronized chaos. Chaotic oscillators generate random-like waveforms that may be well-suited for highly unconventional ultra-wideband radar and spread-spectrum communication applications. The broadband and non-repeating nature of chaos provides an ideal combination of high range resolution with no range ambiguity. Unlike true random sources, coupled chaotic oscillators can synchronize for coherent power combining. To steer the array, a small detuning is applied to each oscillator to slightly shift its natural frequency. Oscillators that are tuned to run faster will lead those tuned slower, providing a small time shift between the waveforms produced by each oscillator. The approach avoids the need for costly phase shifters or tunable true time delay elements. Our demonstration system consists of a linear array of four directionally coupled radio frequency chaotic oscillators, each of which produces a broadband waveform centered at 137 MHz. Each individual oscillator feeds one of four discone-type antennas spaced a third of a wavelength apart. We present far-field power level measurements characterizing beam formation and steering recorded on an outdoor test range. Our results suggest chaotic arrays could enable a new generation of low-cost, high-performance, ultra-wide bandwidth applications.
C1 [Blakely, Jonathan N.; Corron, Ned J.; Stahl, Mark T.; Myneni, Krishna] USA, Aviat & Missile Res Dev & Engn Ctr, RDMR WSS, Redstone Arsenal, AL 35898 USA.
RP Blakely, JN (reprint author), USA, Aviat & Missile Res Dev & Engn Ctr, RDMR WSS, Redstone Arsenal, AL 35898 USA.
EM jonathan.blakely@us.army.mil
OI Blakely, Jonathan/0000-0002-9772-582X; Corron, Ned/0000-0002-3232-5024
NR 28
TC 1
Z9 1
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8133-7
J9 PROC SPIE
PY 2010
VL 7669
AR 76690Q
DI 10.1117/12.850153
PG 8
WC Remote Sensing; Optics; Physics, Applied
SC Remote Sensing; Optics; Physics
GA BSP49
UT WOS:000285291000023
ER
PT S
AU Govoni, MA
Li, HB
AF Govoni, Mark A.
Li, Hongbin
BE Ranney, KI
Doerry, AW
TI Complex, Aperiodic Random Signal Modulation(1) on Pulse-LFM Chirp Radar
Waveform
SO RADAR SENSOR TECHNOLOGY XIV
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Radar Sensor Technology XIV
CY APR 05-07, 2010
CL Orlando, FL
SP SPIE
DE random signal; pulse-LFM; ECCM; EW
ID RANDOM NOISE RADAR; ECCM
AB In an effort to enhance the security of radar, the plausibility of using a complex, aperiodic random signal to modulate a pulse linear frequency modulation (LFM) or "chirp" radar waveform across both its fast-time and slow-time samples is investigated. A non-conventional threat is considered when illustrating the effectiveness of the proposed waveform as an electronic counter-countermeasure (ECCM). Results are derived using stretch processing and are assessed using the receiver cross-correlation function with a consideration for the unmodulated case as a basis for comparison. A tailored radar ambiguity function is also included in the analysis, and is used to demonstrate how the proposed waveform possesses an ideal characteristic suitable for combating today's electronic warfare (EW) threats while preserving its inherent functionality to detect targets.
C1 [Govoni, Mark A.] USA, CERDEC I2WD, Aberdeen Proving Ground, MD 21005 USA.
RP Govoni, MA (reprint author), USA, CERDEC I2WD, Aberdeen Proving Ground, MD 21005 USA.
EM mark.anthony.govoni@us.army.mil; hli@stevens.edu
NR 22
TC 0
Z9 0
U1 0
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8133-7
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7669
AR 76690S
DI 10.1117/12.849136
PG 11
WC Remote Sensing; Optics; Physics, Applied
SC Remote Sensing; Optics; Physics
GA BSP49
UT WOS:000285291000025
ER
PT S
AU Kirose, G
Dogaru, T
AF Kirose, Getachew
Dogaru, Traian
BE Ranney, KI
Doerry, AW
TI Study of the human body radar signature variability based on computer
models
SO RADAR SENSOR TECHNOLOGY XIV
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Radar Sensor Technology XIV
CY APR 05-07, 2010
CL Orlando, FL
SP SPIE
DE Radar; human body signature; computational electromagnetics
AB This paper investigates the variability of the human body radar signature, for both stationary targets (where we are interested in the radar cross section) and moving targets (where we are interested in the Doppler response). The approach in this paper introduces both mesh distortions and variable walking patterns, in order to predict changes in the radar signature induced by morphological changes in the human meshes. The study is based entirely on computer simulations. We start with a basic human mesh and use the Maya software package to articulate or distort the model. Realistic human motion animation is obtained by using spatial coordinates from real motion capture data. The radar signature is obtained by running a Finite Difference Time Domain-based electromagnetic solver. Results are presented as radar cross section for stationary targets or Doppler spectrograms for moving targets.
C1 [Kirose, Getachew; Dogaru, Traian] USA, Res Lab, Adelphi, MD 20783 USA.
RP Kirose, G (reprint author), USA, Res Lab, Adelphi, MD 20783 USA.
EM gkirose@arl.army.mil
NR 7
TC 4
Z9 4
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8133-7
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7669
AR 766915
DI 10.1117/12.849395
PG 11
WC Remote Sensing; Optics; Physics, Applied
SC Remote Sensing; Optics; Physics
GA BSP49
UT WOS:000285291000036
ER
PT S
AU Martone, A
Ranney, K
Innocenti, R
AF Martone, Anthony
Ranney, Kenneth
Innocenti, Roberto
BE Ranney, KI
Doerry, AW
TI CLUSTERING ANALYSIS OF MOVING TARGET SIGNATURES
SO RADAR SENSOR TECHNOLOGY XIV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Radar Sensor Technology XIV
CY APR 05-07, 2010
CL Orlando, FL
SP SPIE
DE moving target indication; sensing through the wall; impulse radar;
target tracking; change detection; clutter cancelation
AB Previously, we developed a moving target indication (MTI) processing approach to detect and track slow-moving targets inside buildings, which successfully detected moving targets (MTs) from data collected by a low-frequency, ultrawideband radar. Our MTI algorithms include change detection, automatic target detection (ATD), clustering, and tracking. The MTI algorithms can be implemented in a real-time or near-real-time system; however, a person-in-the-loop is needed to select input parameters for the clustering algorithm. Specifically, the number of clusters to input into the cluster algorithm is unknown and requires manual selection. A critical need exists to automate all aspects of the MTI processing formulation. In this paper, we investigate two techniques that automatically determine the number of clusters: the adaptive knee-point (KP) algorithm and the recursive pixel finding (RPF) algorithm. The KP algorithm is based on a well-known heuristic approach for determining the number of clusters. The RPF algorithm is analogous to the image processing, pixel labeling procedure. Both algorithms are used to analyze the false alarm and detection rates of three operational scenarios of personnel walking inside wood and cinderblock buildings.
C1 [Martone, Anthony; Ranney, Kenneth; Innocenti, Roberto] USA, Res Lab, Adelphi, MD 20783 USA.
RP Martone, A (reprint author), USA, Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
NR 17
TC 0
Z9 0
U1 1
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8133-7
J9 PROC SPIE
PY 2010
VL 7669
AR 766912
DI 10.1117/12.852549
PG 12
WC Remote Sensing; Optics; Physics, Applied
SC Remote Sensing; Optics; Physics
GA BSP49
UT WOS:000285291000034
ER
PT S
AU Mazzaro, GJ
Ranney, KI
AF Mazzaro, Gregory J.
Ranney, Kenneth I.
BE Ranney, KI
Doerry, AW
TI Characterization of RF Front-Ends by Long-Tail Pulse Response
SO RADAR SENSOR TECHNOLOGY XIV
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Radar Sensor Technology XIV
CY APR 05-07, 2010
CL Orlando, FL
SP SPIE
DE bandpass filters; resonance; transient response; time-frequency
analysis; stepped-frequency radar
AB The recognition of unauthorized communications devices at the entry-point of a secure location is one way to guard against the compromise of sensitive information by wireless transmission. Such recognition may be achieved by backscatter x-ray and millimeter-wave imaging; however, implementation of these systems is expensive, and the ability to image the contours of the human body has raised privacy concerns.
In this paper, we present a cheaper and less-invasive radio-frequency (RF) alternative for recognizing wireless communications devices. Characterization of the device-under-test (DUT) is accomplished using a stepped-frequency radar waveform. Single-frequency pulses excite resonance in the device's RF front-end. Microsecond periods of zero-signal are placed between each frequency transition to listen for the resonance. The stepped-frequency transmission is swept through known communications bands. Reception of a long-tail decay response between active pulses indicates the presence of a narrowband filter and implies the presence of a front-end circuit. The frequency of the received resonance identifies its communications band. In this work, cellular-band and handheld-radio filters are characterized.
C1 [Mazzaro, Gregory J.; Ranney, Kenneth I.] USA, Res Lab, Adelphi, MD 20783 USA.
RP Mazzaro, GJ (reprint author), USA, Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
NR 5
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8133-7
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7669
AR 76690X
DI 10.1117/12.862696
PG 8
WC Remote Sensing; Optics; Physics, Applied
SC Remote Sensing; Optics; Physics
GA BSP49
UT WOS:000285291000030
ER
PT S
AU Nguyen, L
Tran, TD
AF Nguyen, Lam
Tran, Trac D.
BE Ranney, KI
Doerry, AW
TI Model-Based Sub-Nyquist Sampling and Reconstruction Technique for
Ultra-Wideband (UWB) Radar
SO RADAR SENSOR TECHNOLOGY XIV
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Radar Sensor Technology XIV
CY APR 05-07, 2010
CL Orlando, FL
SP SPIE
DE ultra-wideband radar (UWB); compressed sensing; sparse recovery;
Sub-Nyquist sampling
ID SIGNAL RECOVERY
AB The Army Research Lab has recently developed an ultra-wideband (UWB) synthetic aperture radar (SAR). The radar has been employed to support proof-of-concept demonstration for several concealed target detection programs. The radar transmits and receives short impulses to achieve a wide-bandwidth from 300 MHz to 3000 MHz. Since the radar directly digitizes the wide-bandwidth receive signals, the challenges is to how to employ relatively slow and inexpensive analog-to-digital (A/D) converters to sample the signals with a rate that is greater than the minimum Nyquist rate. ARL has developed a sampling technique that allows us to employ inexpensive A/D converters (ADC) to digitize the wide-bandwidth signals. However, this technique still has a major drawback due to the longer time required to complete a data acquisition cycle. This in turn translates to lower average power and lower effective pulse repetition frequency (PRF).
Compressed Sensing (CS) theory offers a new approach in data acquisition. From the CS framework, we can reconstruct certain signals or images from much fewer samples than the traditional sampling methods, provided that the signals are sparse in certain domains. However, while the CS framework offers the data compression feature, it still does not address the above mentioned drawback, that is the data acquisition must be operated in equivalent time since many global measurements (obtained from global random projections) are required as depicted by the sensing matrix F in the CS framework.
In this paper, we propose a new technique that allows the sub-Nyquist sampling and the reconstruction of the wide-bandwidth data. In this technique, each wide-bandwidth radar data record is modeled as a superposition of many backscatter signals from reflective point targets. The technique is based on direct sparse recovery using a special dictionary containing many time-delayed versions of the transmitted probing signal. We demonstrate via simulated as well as collected data that our design offers real-time (with single observation as oppose to equivalent-time with many observations) data acquisition of the wide-bandwidth radar signals using the sub-Nyquist sampling rate.
C1 [Nguyen, Lam] USA, Res Lab, Adelphi, MD 20783 USA.
RP Nguyen, L (reprint author), USA, Res Lab, Adelphi, MD 20783 USA.
EM lnguyen@arl.army.mil; trac@jhu.edu
NR 16
TC 0
Z9 0
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8133-7
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7669
AR 76690H
DI 10.1117/12.850276
PG 9
WC Remote Sensing; Optics; Physics, Applied
SC Remote Sensing; Optics; Physics
GA BSP49
UT WOS:000285291000014
ER
PT S
AU Silvious, J
Wellman, R
Tahmoush, D
Clark, J
AF Silvious, Jerry
Wellman, Ron
Tahmoush, Dave
Clark, John
BE Ranney, KI
Doerry, AW
TI Radar system on a large autonomous vehicle for personnel avoidance
SO RADAR SENSOR TECHNOLOGY XIV
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Radar Sensor Technology XIV
CY APR 05-07, 2010
CL Orlando, FL
SP SPIE
DE personnel avoidance; autonomous vehicle; radar
AB The US Army Research Laboratory designed, developed and tested a novel switched beam radar system operating at 76 GHz for use in a large autonomous vehicle to detect and identify roadway obstructions including slowly-moving personnel. This paper discusses the performance requirements for the system to operate in an early collision avoidance mode to a range of 150 meters and at speeds of over 20 m/s. We report the measured capabilities of the system to operate in these modes under various conditions, such as rural and urban environments, and on various terrains, such as asphalt and grass. Finally, we discuss the range-Doppler map processing capabilities that were developed to correct for platform motion and identify roadway vehicles and personnel moving at 1 m/s or more along the path of the system.
C1 [Silvious, Jerry; Tahmoush, Dave; Clark, John] USA, Res Lab, Adelphi, MD 20783 USA.
RP Silvious, J (reprint author), USA, Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
NR 13
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8133-7
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7669
AR 766905
DI 10.1117/12.850420
PG 6
WC Remote Sensing; Optics; Physics, Applied
SC Remote Sensing; Optics; Physics
GA BSP49
UT WOS:000285291000004
ER
PT S
AU Tahmoush, D
Silvious, J
Clark, J
AF Tahmoush, Dave
Silvious, Jerry
Clark, John
BE Ranney, KI
Doerry, AW
TI An UGS Radar with Micro-Doppler Capabilities for Wide Area Persistent
Surveillance
SO RADAR SENSOR TECHNOLOGY XIV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Radar Sensor Technology XIV
CY APR 05-07, 2010
CL Orlando, FL
SP SPIE
DE Radar; micro-Doppler; UGS
ID FEATURE-EXTRACTION; GAIT
AB Detecting humans and distinguishing them from natural fauna is an important issue in security applications to reduce false alarm rates. In particular, it is important to detect and classify people who are walking in remote locations and transmit back detections over extended periods at a low cost and with minimal maintenance. The ability to discriminate men versus animals and vehicles at long range would give a distinct sensor advantage. The reduction in false positive detections due to animals would increase the usefulness of detections, while dismount identification could reduce friendly-fire. We developed and demonstrate a compact radar technology that is scalable to a variety of ultra-lightweight and low-power platforms for wide area persistent surveillance as an unattended, unmanned, and man-portable ground sensor. The radar uses micro-Doppler processing to characterize the tracks of moving targets and to then eliminate unimportant detections due to animals or civilian activity. This paper presents the system and data on humans, vehicles, and animals at multiple angles and directions of motion, demonstrates the signal processing approach that makes the targets visually recognizable, and verifies that the UGS radar has enough micro-Doppler capability to distinguish between humans, vehicles, and animals.
C1 [Tahmoush, Dave; Silvious, Jerry; Clark, John] USA, Res Lab, Adelphi, MD 20783 USA.
RP Tahmoush, D (reprint author), USA, Res Lab, Adelphi, MD 20783 USA.
NR 35
TC 3
Z9 3
U1 1
U2 5
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8133-7
J9 PROC SPIE
PY 2010
VL 7669
AR 766904
DI 10.1117/12.848233
PG 11
WC Remote Sensing; Optics; Physics, Applied
SC Remote Sensing; Optics; Physics
GA BSP49
UT WOS:000285291000003
ER
PT J
AU Ziemian, C
Ziemian, R
Barker, E
AF Ziemian, Constance
Ziemian, Ronald
Barker, Eric
TI Shake-table simulation study of small scale layered models
SO RAPID PROTOTYPING JOURNAL
LA English
DT Article
DE Manufacturing systems; Earthquakes; Steel; Plastics; Simulation;
Prototypes
ID ABS; STRENGTH
AB Purpose - The purpose of this paper is to investigate the correlation between the dynamic behavior of a full-scale steel prototype and a small-scale plastic model fabricated using fused deposition modeling (FDM).
Design/methodology/approach - Based on the use of a known input excitation, the small-scale model is tested on a shake-table. Experimental results are compared with results of a full prototype study and with computational models in an effort to assess the feasibility of testing small-scale FDM models.
Findings - Time History Records present strong correlation with prototype data and are reproducible using computational methods. Matching the first natural frequency of the studied structure proved to be a large part of achieving the desired response.
Research limitations/implications - including the direct measurement of floor displacements will potentially highlight different aspects of model behavior not observed by recording accelerations only. Further investigation into the damping properties of acrylonitrile butadiene styrene plastic is recommended towards further understanding the model response.
Practical implications - Although this paper is based on a simple structure, the benefits of layered manufacturing (LM) methods include speed and ease of generating geometrically complex solids. The implications of the success of this pilot study include the ease in which the dynamic response of complex structures can be assessed using small-scale LM models.
Originality/value - This project obtained baseline information on the dynamic behavior of FDM plastic parts. It provides assessment of the value of using small-scale LM models to accurately predict the dynamic response of structures subjected to earthquake excitation.
C1 [Ziemian, Constance] Bucknell Univ, Dept Mech Engn, Lewisburg, PA 17837 USA.
[Ziemian, Ronald] Bucknell Univ, Dept Civil & Environm Engn, Lewisburg, PA 17837 USA.
[Barker, Eric] USA, ARDEC, Maneuver Support Div, Picatinny Arsenal, NJ USA.
RP Ziemian, C (reprint author), Bucknell Univ, Dept Mech Engn, Lewisburg, PA 17837 USA.
EM cziemian@bucknell.edu
NR 17
TC 3
Z9 3
U1 1
U2 2
PU EMERALD GROUP PUBLISHING LIMITED
PI BINGLEY
PA HOWARD HOUSE, WAGON LANE, BINGLEY BD16 1WA, W YORKSHIRE, ENGLAND
SN 1355-2546
J9 RAPID PROTOTYPING J
JI Rapid Prototyping J.
PY 2010
VL 16
IS 1
BP 4
EP 11
DI 10.1108/13552541011011659
PG 8
WC Engineering, Mechanical; Materials Science, Multidisciplinary
SC Engineering; Materials Science
GA 557KS
UT WOS:000274668600002
ER
PT S
AU Jow, TR
Allen, JL
Marx, M
Nechev, K
Deveney, B
Rickman, S
AF Jow, T. R.
Allen, J. L.
Marx, M.
Nechev, K.
Deveney, B.
Rickman, S.
BE Winter, M
Doughty, DH
Zaghib, K
Abraham, KM
Ogumi, Z
Dudney, NJ
TI Electrolytes, SEI and Charge Discharge Kinetics of Li-ion Batteries
SO RECHARGEABLE LITHIUM-ION BATTERIES
SE ECS Transactions
LA English
DT Proceedings Paper
CT Symposium on Rechargeable Lithium and Lithium-Ion Batteries Held During
the 216th Meeting of the Electrochemical-Society (ECS)
CY OCT 04-09, 2009
CL Vienna, AUSTRIA
SP Electrochem Soc (ECS), Battery (BATT)
ID PULSED-LASER DEPOSITION; GRAPHITE/ELECTROLYTE INTERFACE; NONAQUEOUS
ELECTROLYTES; SOLVATION SHEATH; LIBOB
AB Charge discharge kinetics of Li-ion batteries is dominated by the lithium ion (Li+) charge transfer kinetics, which involves the process of transporting the solvated Li+ in the electrolyte to the insertion of Li+ and the accepting of an electron at the same time in the electrode active materials. The importance of electrolytes and recent studies of Li+ charge transfer kinetics were briefly reviewed. Using 3-electrode cells and a DC Pulse Current Impedance method, we examined the charge discharge kinetics of the anode and the cathode in the same electrolyte at the same time. We observed a slower kinetics at the graphitic carbon anode as indicated by higher activation energy than that at the lithium nickel cobalt aluminum mixed oxide (LiNi0.80Co0.15Al0.05O2) cathode. While desolvation is a dominating step as concluded in recent studies on the Li+ charge transfer kinetics, this study suggests that the nature of SEIs and electrode materials play crucial roles on Li+ charge discharge kinetics.
C1 [Jow, T. R.; Allen, J. L.; Marx, M.] USA, Res Lab, Adelphi, MD 20783 USA.
[Nechev, K.; Deveney, B.; Rickman, S.] Saft Amer Inc, Cockeysville, MD 21030 USA.
RP Jow, TR (reprint author), USA, Res Lab, Adelphi, MD 20783 USA.
RI Dudney, Nancy/I-6361-2016
OI Dudney, Nancy/0000-0001-7729-6178
FU Department of Energy, Office of Vehicle Technologies, Applied Battery
Research for Transportation Program
FX Partial financial support from the Department of Energy, Office of
Vehicle Technologies, Applied Battery Research for Transportation
Program, for ARL is greatly appreciated.
NR 16
TC 6
Z9 6
U1 2
U2 36
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-56677-810-7
J9 ECS TRANSACTIONS
PY 2010
VL 25
IS 36
BP 3
EP 12
DI 10.1149/1.3393833
PG 10
WC Electrochemistry; Energy & Fuels
SC Electrochemistry; Energy & Fuels
GA BDI59
UT WOS:000313480900001
ER
PT J
AU Cohen, SP
Van Zundert, J
AF Cohen, Steven P.
Van Zundert, Jan
TI Pulsed Radiofrequency: Rebel Without Cause
SO REGIONAL ANESTHESIA AND PAIN MEDICINE
LA English
DT Editorial Material
ID DORSAL-ROOT GANGLION; EXPERIMENTAL-MODEL; SCIATIC-NERVE; DOUBLE-BLIND;
PAIN; RAT; EXPOSURE; ADJACENT; NEURONS; LESIONS
C1 [Cohen, Steven P.] Johns Hopkins Sch Med, Dept Anesthesiol, Baltimore, MD USA.
[Cohen, Steven P.] Walter Reed Army Med Ctr, Dept Surg, Washington, DC 20307 USA.
[Van Zundert, Jan] Univ Med Ctr Maastricht, Dept Anesthesiol & Pain Management, Maastricht, Netherlands.
[Van Zundert, Jan] Ziekenhuis Oost Limburg, Dept Anesthesiol, Genk, Belgium.
[Van Zundert, Jan] Ziekenhuis Oost Limburg, Ctr Multidisciplinary Pain, Genk, Belgium.
RP Cohen, SP (reprint author), 550 N Broadway,Suite 301, Baltimore, MD 21029 USA.
EM scohen40@jhmi.edu
NR 24
TC 18
Z9 21
U1 0
U2 1
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 1098-7339
J9 REGION ANESTH PAIN M
JI Region. Anesth. Pain Med.
PD JAN-FEB
PY 2010
VL 35
IS 1
BP 8
EP 10
DI 10.1097/AAP.0b013e3181c7705f
PG 3
WC Anesthesiology
SC Anesthesiology
GA 545EY
UT WOS:000273716500003
PM 20048652
ER
PT J
AU King, CS
Moores, LK
Epstein, SK
AF King, Christopher S.
Moores, Lisa K.
Epstein, Scott K.
TI Should Patients Be Able to Follow Commands Prior to Extubation?
SO RESPIRATORY CARE
LA English
DT Article
DE mechanical ventilation; extubation; weaning
ID SPONTANEOUS BREATHING TRIAL; MECHANICALLY VENTILATED PATIENTS;
RISK-FACTORS; NEUROSURGICAL PATIENTS; UNPLANNED EXTUBATION; FAILURE;
REINTUBATION; SEDATION; PREDICTORS; CRITERIA
AB The determination of optimal timing of liberation from mechanical ventilation requires a thorough assessment of multiple variables that can result in extubation failure. It is estimated that 5-20% of extubations fail. Traditional weaning parameters fail to predict extubation failure accurately, and attention has thus turned to improvements in extubation decision making through assessment of elements that may result in inability to protect the airway, such as excessive respiratory secretions, inadequate cough, and depressed mental status. Extubation is particularly controversial in patients with depressed mental status and inability to follow commands. When looking at univariate analyses, the reported studies are relatively evenly divided among those that did and did not rind that inability to follow commands (ie, abnormal mental status) increases the risk of extubation failure. In addition, although extubation failure is a risk factor for poor overall outcome in heterogeneous populations, its impact on the patient failing with neurologic dysfunction has not been adequately determined. One limiting factor in all reported studies is how "inability to follow commands" is defined. The majority of studies use the Glasgow coma score, but this is difficult to determine in the intubated patient. Moreover, using the cutoff of Glasgow coma score >= 8, favored by many authors, is questionable, as some patients with higher scores may be unable to follow commands. Currently it is agreed that many patients who are unable to follow commands, but have the ability to clear pulmonary secretions, can be safely extubated. A prospective, randomized trial using a more specific definition of "following commands" would certainly help remove some of the uncertainty in this patient population.
C1 [King, Christopher S.] Walter Reed Army Med Ctr, Pulm Crit Care & Sleep Med Div, Washington, DC 20307 USA.
[Moores, Lisa K.] Uniformed Serv Univ Hlth Sci, Dept Med, Bethesda, MD 20814 USA.
[Epstein, Scott K.] Tufts Univ, Sch Med, Tufts Med Ctr, Off Educ Affairs, Boston, MA 02111 USA.
RP Moores, LK (reprint author), Uniformed Serv Univ Hlth Sci, Dept Med, 4301 Jones Bridge Rd, Bethesda, MD 20814 USA.
EM lmoores@usuhs.mil
NR 31
TC 13
Z9 15
U1 1
U2 1
PU DAEDALUS ENTERPRISES INC
PI IRVING
PA 9425 N MAC ARTHUR BLVD, STE 100, IRVING, TX 75063-4706 USA
SN 0020-1324
J9 RESP CARE
JI Respir. Care
PD JAN
PY 2010
VL 55
IS 1
SI SI
BP 56
EP 62
PG 7
WC Critical Care Medicine; Respiratory System
SC General & Internal Medicine; Respiratory System
GA 548IS
UT WOS:000273955400007
PM 20040124
ER
PT J
AU Durbin, CG
Perkins, MP
Moores, LK
AF Durbin, Charles G., Jr.
Perkins, Michael P.
Moores, Lisa K.
TI Should Tracheostomy Be Performed as Early as 72 Hours in Patients
Requiring Prolonged Mechanical Ventilation?
SO RESPIRATORY CARE
LA English
DT Article
DE respiratory failure; tracheostomy; intubation; mechanical ventilation;
weaning; critical care; timing
ID RESPIRATORY-DISTRESS SYNDROME; CARE-UNIT PATIENTS; TRANSLARYNGEAL
INTUBATION; ENDOTRACHEAL INTUBATION; TRACHEOTOMY; METAANALYSIS; INJURY
AB Advances in treating the critically ill have resulted in more patients requiring prolonged airway intubation and respiratory support. If intubation is projected to be longer than several weeks, tracheostomy is often recommended. Tracheostomy offers the potential benefits of improved patient comfort, the ability to communicate, opportunity for oral feeding, and easier, safer nursing care. In addition, less need for sedation and lower airway resistance (than through an endotracheal tube) may facilitate the weaning process and shorten intensive care unit and hospital stay. By preventing microaspiration of secretions, tracheostomy might reduce ventilator-associated pneumonia. There is controversy, however, over the optimal timing of the procedure. While there have been many randomized controlled trials on tracheostomy timing, most were insufficiently powered to detect important differences, and systematic reviews and meta-analyses are limited by the heterogeneity of the primary studies. Based on the available data, we think it is reasonable to perform early tracheostomy in all patients projected to require prolonged mechanical ventilation. Unfortunately, identifying those patients can be difficult, and for many patient populations we lack the necessary tools to predict prolonged ventilation. We propose an early-tracheostomy decision algorithm.
C1 [Durbin, Charles G., Jr.] Univ Virginia Hlth Syst, Dept Anesthesiol, Charlottesville, VA USA.
[Perkins, Michael P.] Walter Reed Army Med Ctr, Dept Pulm Crit Care & Sleep Med, Washington, DC 20307 USA.
[Moores, Lisa K.] Uniformed Serv Univ Hlth Sci, Dept Med, Bethesda, MD 20814 USA.
RP Durbin, CG (reprint author), Univ Virginia, Hlth Sci Ctr, Dept Anesthesiol, POB 800710, Charlottesville, VA 22908 USA.
EM cgd8v@virginia.edu
NR 22
TC 30
Z9 32
U1 0
U2 4
PU DAEDALUS ENTERPRISES INC
PI IRVING
PA 9425 N MAC ARTHUR BLVD, STE 100, IRVING, TX 75063-4706 USA
SN 0020-1324
J9 RESP CARE
JI Respir. Care
PD JAN
PY 2010
VL 55
IS 1
SI SI
BP 76
EP 83
PG 8
WC Critical Care Medicine; Respiratory System
SC General & Internal Medicine; Respiratory System
GA 548IS
UT WOS:000273955400011
PM 20040126
ER
PT J
AU Yeh, S
Forooghian, F
Faia, LJ
Weichel, ED
Wong, WT
Sen, HN
Chan-Kai, BT
Witherspoon, SR
Lauer, AK
Chew, EY
Nussenblatt, RB
AF Yeh, Steven
Forooghian, Farzin
Faia, Lisa J.
Weichel, Eric D.
Wong, Wai T.
Sen, Hatice N.
Chan-Kai, Brian T.
Witherspoon, Scott R.
Lauer, Andreas K.
Chew, Emily Y.
Nussenblatt, Robert B.
TI FUNDUS AUTOFLUORESCENCE CHANGES IN CYTOMEGALOVIRUS RETINITIS
SO RETINA-THE JOURNAL OF RETINAL AND VITREOUS DISEASES
LA English
DT Article
DE fundus autofluorescence; retinal pigment epithelium; retinitis;
cytomegalovirus retinitis; human immunodeficiency virus; ophthalmic
imaging
ID IMMUNODEFICIENCY SYNDROME; EPITHELIAL-CELLS; LIPOFUSCIN; ACCUMULATION;
GANCICLOVIR; DIAGNOSIS; UVEITIS; TRIAL
AB Purpose: The purpose of this study was to describe fundus autofluorescence imaging features of cytomegalovirus (CMV) retinitis and to correlate fundus autofluorescence features with clinical activity.
Methods: A retrospective case series was undertaken to evaluate nine eyes of six patients with active CMV retinitis. Patients were evaluated with a comprehensive ophthalmic examination, fundus autofluorescence imaging, and fundus photography. Oral valganciclovir, intravitreal ganciclovir, intravitreal foscarnet, or an ganciclovir implant was administered as clinically indicated.
Results: In all nine eyes with active CMV retinitis, a hyperautofluorescent signal on fundus autofluorescence imaging was correlated spatially with the border of advancing CMV retinitis. Stippled areas of alternating hyperautofluorescence and hypoautofluorescence were observed in regions of retinal pigment epithelium atrophy from prior CMV retinitis. In three eyes with subtle CMV reactivation, a hyperautofluorescent border was helpful in the detection and localization of active CMV retinitis. In another patient, diffuse, punctate hyperautofluorescence after intravitreal ganciclovir and foscarnet was a concern for medication-related toxicity.
Conclusion: Fundus autofluorescence imaging was valuable in highlighting areas of active CMV retinitis in all patients in this series, including two patients with subtle clinical features. Fundus autofluorescence may be useful as an adjunctive imaging modality for the detection of CMV activity and aid in our understanding of the structural changes during episodes of CMV retinitis. RETINA 30:42-50,2010
C1 [Yeh, Steven; Forooghian, Farzin; Wong, Wai T.; Sen, Hatice N.; Chew, Emily Y.; Nussenblatt, Robert B.] NEI, NIH, Bethesda, MD 20892 USA.
[Faia, Lisa J.; Weichel, Eric D.] Walter Reed Army Med Ctr, Washington, DC 20307 USA.
[Yeh, Steven; Chan-Kai, Brian T.; Witherspoon, Scott R.; Lauer, Andreas K.] Oregon Hlth & Sci Univ, Casey Eye Inst, Retina Serv, Portland, OR 97201 USA.
RP Nussenblatt, RB (reprint author), NEI, NIH, Bldg 10,10N-112,10 Ctr Dr, Bethesda, MD 20892 USA.
EM DrBob@nei.nih.gov
RI Wong, Wai/B-6118-2017
OI Wong, Wai/0000-0003-0681-4016
FU National Eye Institute, National Institutes of Health; Heed Ophthalmic
Foundation
FX Supported by the Intramural Research Program of the National Eye
Institute, National Institutes of Health. Dr. Steven Yeh has received
support from the Heed Ophthalmic Foundation.
NR 24
TC 3
Z9 4
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0275-004X
J9 RETINA-J RET VIT DIS
JI Retin.-J. Retin. Vitr. Dis.
PD JAN
PY 2010
VL 30
IS 1
BP 42
EP 50
DI 10.1097/IAE.0b013e3181bfbdb2
PG 9
WC Ophthalmology
SC Ophthalmology
GA 607ZX
UT WOS:000278547300006
PM 19996825
ER
PT S
AU Brennan, RE
Green, WH
Sands, JM
AF Brennan, R. E.
Green, W. H.
Sands, J. M.
BE Thompson, DO
Chimenti, DE
TI ULTRASOUND AND X-RAY CHARACTERIZATION OF DAMAGE IN ALUMINA STRUCTURAL
CERAMICS
SO REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 29A
AND 29B
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 36th Annual Review of Progress in Quantitative Nondestructive Evaluation
CY JUL 26-31, 2009
CL Univ Rhode Isl, Kingston, RI
HO Univ Rhode Isl
DE Nondestructive Evaluation; Ultrasound; Digital Radiography; Imaging;
Impact Damage
AB A combination of destructive and nondestructive testing methods was utilized to evaluate the impact velocity and energy conditions that caused fracture in alumina structural ceramics. Incremental damage was produced in aluminum-backed Al(2)O(3) tiles using drop tower testing for low velocity impact with a high mass indenter. The majority of damage in the fractured samples consisted of radial and cone cracking. The samples were nondestructively evaluated using digital radiography, x-ray computed tomography, and ultrasound C-scan imaging. Bulk damage detected by these techniques was compared to surface damage observed by visual inspection. Qualitative evaluation of surface and bulk cracks and quantitative percent damage assessment were used to compare the integrity of the nondestructive techniques. While all three methods were able to detect surface cracks, C-scan imaging was more effective at detecting internal damage in the alumina samples and x-ray computed tomography was more effective at producing three-dimensional images of the crack patterns.
C1 [Brennan, R. E.; Green, W. H.; Sands, J. M.] USA, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
RP Brennan, RE (reprint author), USA, Res Lab, 4600 Deer Creek Loop, Aberdeen Proving Ground, MD 21005 USA.
NR 5
TC 0
Z9 0
U1 0
U2 4
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0748-0
J9 AIP CONF PROC
PY 2010
VL 1211
BP 1233
EP 1240
DI 10.1063/1.3362204
PG 8
WC Engineering, Aerospace; Physics, Applied
SC Engineering; Physics
GA BQW91
UT WOS:000282038501019
ER
PT S
AU Schmidt, KF
Little, JR
Ellingson, WA
Green, W
AF Schmidt, K. F., Jr.
Little, J. R., Jr.
Ellingson, W. A.
Green, W.
BE Thompson, DO
Chimenti, DE
TI OPTIMIZING A PORTABLE MICROWAVE INTERFERENCE SCANNING SYSTEM FOR
NONDESTRUCTIVE TESTING OF MULTI-LAYERED DIELECTRIC MATERIALS
SO REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 29A
AND 29B
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 36th Annual Review of Progress in Quantitative Nondestructive Evaluation
CY JUL 26-31, 2009
CL Univ Rhode Isl, Kingston, RI
HO Univ Rhode Isl
DE Microwave; NDT; Ceramics; Composites; Armor
AB The projected microwave energy pattern, wave guide geometry, positioning methods and process variables have been optimized for use of a portable, non-contact, lap-top computer-controlled microwave interference scanning system on multi-layered dielectric materials. The system can be used in situ with one-sided access and has demonstrated capability of damage detection on composite ceramic armor. Specimens used for validation included specially fabricated surrogates, and ballistic impact-damaged specimens. Microwave data results were corroborated with high resolution direct-digital x-ray imaging. Microwave interference scanning detects cracks, laminar features and material properties variations. This paper presents the details of the system, the optimization steps and discusses results obtained.
C1 [Schmidt, K. F., Jr.; Little, J. R., Jr.] Evisive Inc, Baton Rouge, LA USA.
[Ellingson, W. A.] Argonne Natl Lab, Argonne, IL USA.
[Green, W.] Army Res Lab, Aberdeen Proving Ground, MD USA.
RP Schmidt, KF (reprint author), Evisive Inc, Baton Rouge, LA USA.
FU US Army RDECOM ARL; US Army RDECOM TARDEC
FX This work is supported by the US Army RDECOM ARL and US Army RDECOM
TARDEC whose staffs insight and technical contribution is much
appreciated
NR 10
TC 0
Z9 0
U1 0
U2 3
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0748-0
J9 AIP CONF PROC
PY 2010
VL 1211
BP 1249
EP +
DI 10.1063/1.3362209
PG 2
WC Engineering, Aerospace; Physics, Applied
SC Engineering; Physics
GA BQW91
UT WOS:000282038501021
ER
PT S
AU Xiang, D
Zhao, G
Raju, BB
AF Xiang, Dan
Zhao, George
Raju, Basavaraju B.
BE Thompson, DO
Chimenti, DE
TI AUTOMATED ULTRASONIC DISBOND INSPECTION OF METAL MATRIX COMPOSITE TANK
TRACK SHOES
SO REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 29A
AND 29B
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 36th Annual Review of Progress in Quantitative Nondestructive Evaluation
CY JUL 26-31, 2009
CL Univ Rhode Isl, Kingston, RI
HO Univ Rhode Isl
DE Metal Matrix Composite; Disbond; Ultrasonic; Automated Inspection
AB An automated disbond inspection system using an ultrasonic array for Metal Matrix Composite (MMC) tank track shoes has been developed. To ensure a reliable inspection, we investigated the test procedures and disbond identification criteria. A standard specimen was designed and fabricated for calibration of the transducer array. This specimen was also used to study the variables that affect the system performance, such as the repeatability and reproducibility with respect to acoustic coupling, and contact conditions, etc. Based on the statistic data analysis, an automated test procedure and criteria for detection and classification of MMC disbond have been established. By applying the inspection procedure to a set of track shoes, we have achieved more reproducible and reliable inspection results than previous tests. The inspection results were confirmed by ultrasonic C-scans.
C1 [Xiang, Dan; Zhao, George] Intelligent Automat Inc, Rockville, MD 20855 USA.
[Raju, Basavaraju B.] US Army, RDECOM TARDEC, Warren, MI 48397 USA.
RP Xiang, D (reprint author), Intelligent Automat Inc, Rockville, MD 20855 USA.
FU U.S. Army RDECOM - TARDEC [W56HZV-04-C-0692]
FX This work was supported by the U.S. Army RDECOM - TARDEC through the
Contract No. W56HZV-04-C-0692.
NR 4
TC 0
Z9 0
U1 0
U2 3
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0748-0
J9 AIP CONF PROC
PY 2010
VL 1211
BP 1265
EP +
PG 2
WC Engineering, Aerospace; Physics, Applied
SC Engineering; Physics
GA BQW91
UT WOS:000282038501023
ER
PT S
AU Champagne, V
Sincebaugh, P
Pepi, M
Tackitt, K
AF Champagne, Victor
Sincebaugh, Patrick
Pepi, Marc
Tackitt, Kirk
BE Thompson, DO
Chimenti, DE
TI DETECTION OF THERMAL DAMAGE IN X2M GEARS STEEL USING BARKHAUSEN NOISE
ANALYSIS
SO REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 29A
AND 29B
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 36th Annual Review of Progress in Quantitative Nondestructive Evaluation
CY JUL 26-31, 2009
CL Univ Rhode Isl, Kingston, RI
HO Univ Rhode Isl
DE Barkhausen Noise Analysis; Nondestructive Testing; Grinding Burns; Shot
Peening; Vasco X2M Steel
ID STRESS; EMISSION
AB This paper describes the development and implementation of the Barkhausen Noise Analysis (BNA) technique for detecting thermal damage and to differentiate between two heat treatments for X2M steel. BNA is a nondestructive inspection method that has been shown to be sensitive to microstructural and residual stress variations in ferromagnetic materials. BNA data will be presented for X2M samples with various degrees of thermal damage, prior to and subsequent to shot peening. Microstructural analysis results will also be presented. The microstructural feature that was the distinguishing variable between the two heat treatments was the percentage of carbides present. The results clearly demonstrated that it is feasible to use BNA methods to differentiate between the two heat treatments used for the X2M steel prior to shot peening.
C1 [Champagne, Victor; Sincebaugh, Patrick; Pepi, Marc; Tackitt, Kirk] USA, Res Lab, Weapons & Mat Res Directorate, Aberdeen, MD 21005 USA.
RP Champagne, V (reprint author), USA, Res Lab, Weapons & Mat Res Directorate, Aberdeen, MD 21005 USA.
NR 20
TC 0
Z9 0
U1 1
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0748-0
J9 AIP CONF PROC
PY 2010
VL 1211
BP 1452
EP 1459
DI 10.1063/1.3362239
PG 8
WC Engineering, Aerospace; Physics, Applied
SC Engineering; Physics
GA BQW91
UT WOS:000282038501047
ER
PT S
AU Hinders, MK
Fehlman, WL
AF Hinders, M. K.
Fehlman, W. L.
BE Thompson, DO
Chimenti, DE
TI PASSIVE INFRARED THERMOGRAPHIC IMAGING FOR MOBILE ROBOT OBJECT
IDENTIFICATION
SO REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 29A
AND 29B
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 36th Annual Review of Progress in Quantitative Nondestructive Evaluation
CY JUL 26-31, 2009
CL Univ Rhode Isl, Kingston, RI
HO Univ Rhode Isl
DE Robotics; Thermography; Pattern Recognition
AB The usefulness of thermal infrared imaging as a mobile robot sensing modality is explored, and a set of thermal-physical features used to characterize passive thermal objects in outdoor environments is described. Objects that extend laterally beyond the thermal camera's field of view, such as brick walls, hedges, picket fences, and wood walls as well as compact objects that are laterally within the thermal camera's field of view, such as metal poles and tree trunks, are considered. Classification of passive thermal objects is a subtle process since they are not a source for their own emission of thermal energy. A detailed analysis is included of the acquisition and preprocessing of thermal images, as well as the generation and selection of thermal-physical features from these objects within thermal images. Classification performance using these features is discussed, as a precursor to the design of a physics-based model to automatically classify these objects.
C1 [Hinders, M. K.] Coll William & Mary, NDE Lab, Williamsburg, VA 23187 USA.
[Fehlman, W. L.] US Mil Acad, Dept Math Sci, West Point, NY USA.
RP Hinders, MK (reprint author), Coll William & Mary, NDE Lab, Williamsburg, VA 23187 USA.
NR 4
TC 1
Z9 1
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0748-0
J9 AIP CONF PROC
PY 2010
VL 1211
BP 2076
EP +
DI 10.1063/1.3362383
PG 2
WC Engineering, Aerospace; Physics, Applied
SC Engineering; Physics
GA BQW91
UT WOS:000282038501125
ER
PT J
AU Smith, DL
Nestler, JM
Johnson, GE
Goodwin, RA
AF Smith, David L.
Nestler, John M.
Johnson, Gary E.
Goodwin, R. Andrew
TI Species-Specific Spatial and Temporal Distribution Patterns of
Emigrating Juvenile Salmonids in the Pacific Northwest
SO REVIEWS IN FISHERIES SCIENCE
LA English
DT Article
DE salmon; Columbia River; dams; emigration; behavior
ID DIEL VERTICAL MIGRATION; FALL CHINOOK SALMON; FREQUENCY IDENTIFICATION
SONAR; TROUT ONCORHYNCHUS-MYKISS; TO-ADULT SURVIVAL; STEELHEAD TROUT;
COLUMBIA RIVER; COHO SALMON; BRITISH-COLUMBIA; CUTTHROAT TROUT
AB The vertical and horizontal distribution of juvenile salmonid migrants on approach to the dams influences bypass success in rivers. Accordingly, fish distributions have been studied for nearly three decades. These studies, however, have not been integrated and summarized in a single body of work to determine overall patterns in the spatial distribution of emigrants. We reviewed peer-reviewed and gray literature to summarize species-specific trends in the horizontal and vertical distributions of emigrating salmonids as measured by several different methods. We found that there were no species-specific differences in horizontal distributions and that fish were often oriented with the river thalweg. There were weak differences between species in vertical distributions, e.g., juvenile yearling steelhead were shallower during the day than yearling Chinook salmon. For sockeye, coho, and subyearling Chinook salmon, the data were limited or conflicting. Studies were purposefully designed to measure distributions at certain dams under particular environmental conditions for specific, local purposes. The non-standard sampling design has hampered the development of testable hypothesis on fish distributions in the Snake and Columbia rivers. Recent advances in individual-based models are offering the potential to forecast fish distributions near dams and facilitate improved bypass system design.
C1 [Smith, David L.] USA, Environm Lab, Engineer Res & Dev Ctr, CEERD EP W, Vicksburg, MS 39180 USA.
[Nestler, John M.] USA, Environm Modeling & Syst Wide Assessment Ctr, Engineer Res & Dev Ctr, CEERD IV Z, Vicksburg, MS 39180 USA.
[Johnson, Gary E.] Pacific NW Natl Lab, Portland, OR USA.
[Goodwin, R. Andrew] USA, Environm Lab, Engineer Res & Dev Ctr, CENWP EC HD, Portland, OR USA.
RP Smith, DL (reprint author), USA, Environm Lab, Engineer Res & Dev Ctr, CEERD EP W, 3909 Halls Ferry Rd, Vicksburg, MS 39180 USA.
EM David.L.Smith@usace.army.mil
FU U.S. Army Engineer Districts Walla Walla and Portland; Grant County
Public Utility District; System-Wide Water Resources Program (SWWRP);
U.S. Army Corps of Engineers research and development initiative
FX The tests described and the resulting data presented herein, unless
otherwise noted, were obtained from research conducted under the
sponsorship of the U.S. Army Engineer Districts Walla Walla and
Portland, the Grant County Public Utility District, and the System-Wide
Water Resources Program (SWWRP), a U.S. Army Corps of Engineers research
and development initiative. We gratefully acknowledge the assistance of
Richard Zabel during manuscript preparation. Permission was granted by
the Chief of Engineers to publish this paper.
NR 174
TC 4
Z9 4
U1 2
U2 14
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
SN 1064-1262
EI 1547-6553
J9 REV FISH SCI
JI Rev. Fish. Sci.
PY 2010
VL 18
IS 1
BP 40
EP 64
AR PII 917640225
DI 10.1080/10641260903304487
PG 25
WC Fisheries
SC Fisheries
GA 596BG
UT WOS:000277657700004
ER
PT J
AU Parnell, GS
Smith, CM
Moxley, FI
AF Parnell, Gregory S.
Smith, Christopher M.
Moxley, Frederick I.
TI Intelligent Adversary Risk Analysis: A Bioterrorism Risk Management
Model
SO RISK ANALYSIS
LA English
DT Article
DE Bioterrorism; defender-attacker-defender; intelligent adversary risk
analysis; risk management; terrorism risk analysis
ID TERRORISM
AB The tragic events of 9/11 and the concerns about the potential for a terrorist or hostile state attack with weapons of mass destruction have led to an increased emphasis on risk analysis for homeland security. Uncertain hazards (natural and engineering) have been successfully analyzed using probabilistic risk analysis (PRA). Unlike uncertain hazards, terrorists and hostile states are intelligent adversaries who can observe our vulnerabilities and dynamically adapt their plans and actions to achieve their objectives. This article compares uncertain hazard risk analysis with intelligent adversary risk analysis, describes the intelligent adversary risk analysis challenges, and presents a probabilistic defender-attacker-defender model to evaluate the baseline risk and the potential risk reduction provided by defender investments. The model includes defender decisions prior to an attack; attacker decisions during the attack; defender actions after an attack; and the uncertainties of attack implementation, detection, and consequences. The risk management model is demonstrated with an illustrative bioterrorism problem with notional data.
C1 [Parnell, Gregory S.] US Mil Acad, Dept Syst Engn, West Point, NY 10996 USA.
[Parnell, Gregory S.] Innovat Decis Inc, Vienna, VA USA.
[Smith, Christopher M.] US Mil Acad, Dept Math Sci, West Point, NY 10996 USA.
[Moxley, Frederick I.] US Mil Acad, Dept Elect Engn & Comp Sci, West Point, NY 10996 USA.
RP Parnell, GS (reprint author), US Mil Acad, Dept Syst Engn, West Point, NY 10996 USA.
EM gregory.parnell@usma.edu
NR 34
TC 33
Z9 33
U1 4
U2 9
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0272-4332
J9 RISK ANAL
JI Risk Anal.
PD JAN
PY 2010
VL 30
IS 1
BP 32
EP 48
DI 10.1111/j.1539-6924.2009.01319.x
PG 17
WC Public, Environmental & Occupational Health; Mathematics,
Interdisciplinary Applications; Social Sciences, Mathematical Methods
SC Public, Environmental & Occupational Health; Mathematics; Mathematical
Methods In Social Sciences
GA 538FR
UT WOS:000273170400005
PM 20002893
ER
PT J
AU Enslen, JA
AF Enslen, Joshua Alma
TI DEATH OF A CARNIVAL: JOAO GRILO AND THE SOCIAL SPACE IN AUTO DA
COMPADECIDA
SO ROMANCE NOTES
LA Portuguese
DT Article
C1 US Mil Acad, West Point, PA USA.
RP Enslen, JA (reprint author), US Mil Acad, West Point, PA USA.
NR 7
TC 0
Z9 0
U1 0
U2 0
PU UNIV NORTH CAROLINA
PI CHAPEL HILL
PA DEPT OF ROMANCE LANGUAGES, CHAPEL HILL, NC 27514 USA
SN 0035-7995
J9 ROMANCE NOTES
JI Roman. Notes
PY 2010
VL 50
IS 3
BP 345
EP 353
PG 9
WC Literature, Romance
SC Literature
GA V23HQ
UT WOS:000208334300011
ER
PT J
AU Wright, DP
AF Wright, Donald P.
TI Stalin's Guerillas: Soviet Partisans in World War II
SO RUSSIAN REVIEW
LA English
DT Book Review
C1 [Wright, Donald P.] USA, Combat Studies Inst, Washington, DC USA.
RP Wright, DP (reprint author), USA, Combat Studies Inst, Washington, DC USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0036-0341
J9 RUSS REV
JI Russ. Rev.
PD JAN
PY 2010
VL 69
IS 1
BP 171
EP 172
PG 2
WC History
SC History
GA 544OZ
UT WOS:000273669100037
ER
PT J
AU Ulrich, MP
AF Ulrich, Marybeth Peterson
TI Inside the Soviet Alternate Universe: The Cold War's End and the Soviet
Union's Fall Reappraised
SO RUSSIAN REVIEW
LA English
DT Book Review
C1 [Ulrich, Marybeth Peterson] USA, War Coll, Washington, DC USA.
RP Ulrich, MP (reprint author), USA, War Coll, Washington, DC USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0036-0341
EI 1467-9434
J9 RUSS REV
JI Russ. Rev.
PD JAN
PY 2010
VL 69
IS 1
BP 180
EP 181
PG 2
WC History
SC History
GA 544OZ
UT WOS:000273669100045
ER
PT J
AU Blank, S
AF Blank, Stephen
TI Russian Energy Power and Foreign Relations: Implications for Conflict
and Cooperation
SO RUSSIAN REVIEW
LA English
DT Book Review
C1 [Blank, Stephen] USA, War Coll, Washington, DC USA.
RP Blank, S (reprint author), USA, War Coll, Washington, DC USA.
NR 1
TC 0
Z9 0
U1 1
U2 1
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0036-0341
J9 RUSS REV
JI Russ. Rev.
PD JAN
PY 2010
VL 69
IS 1
BP 182
EP 182
PG 1
WC History
SC History
GA 544OZ
UT WOS:000273669100047
ER
PT J
AU Sandhu, JS
Popek, W
Pergantis, C
AF Sandhu, J. S.
Popek, W.
Pergantis, C.
TI Next Generation Acoustography Ultrasonic NDI for Advanced Composite
Materials and Structures
SO SAMPE JOURNAL
LA English
DT Article
AB Acoustography differs from conventional ultrasonic testing in that test objects are inspected in full field, analogously to real time x-ray imaging. The approach uses a novel, super high resolution large area acousto-optic (A 0) sensor which allows image formation through simple ultrasound shadow casting, analogous to x-ray image formation. Recent improvements in A 0 sensor technology have greatly expanded acoustography nondestructive inspection (NDI) abilities. These recent developments offers significant advantages over conventional point-by-point ultrasonic scanning methods, such as wide area inspection, high resolution, circumvention of bulky mechanical scanning apparatuses, very user friendly allowing use and interpretation of data by low skill level operators and simple set-up, thus making acoustography very efficient and a powerful inspection tool during manufacturing. In addition, acoustography is also being developed so that it can be adapted for field inspection use. Composite materials are widely used in aerospace structures for their exceptionally high specific strength to weight ratios. A coustography was used to inspect a variety of impact damaged carbon/epoxy composite coupon samples, typically used in aerospace structures. In addition, US Army helicopter main rotor blade sections with induced field damage were also inspected These structures include a variety of materials, such as a primary metal inner load carrying beam structure (spar), a Nomex honeycomb core region sandwiched between thin glass/epoxy skins and all components adhesively bonded Induced damage to the blade sections simulated typical field threats, such as, low velocity ballistic impacts from projectiles, fragments or debt-is, as well as, simulated maintenance tool drops causing localized crush core damage to the honeycomb region. Acoustography inspection results will be presented side-by-side with conventional ultrasonic inspection results.
C1 [Sandhu, J. S.; Popek, W.] Santec Syst Inc, Wheeling, IL 60090 USA.
[Pergantis, C.] USA, Res Lab, Aberdeen Proving Ground, MD USA.
RP Sandhu, JS (reprint author), Santec Syst Inc, Wheeling, IL 60090 USA.
FU US Army [W911QX-04-C-0030]
FX This material is based upon work supported in part by the US Army, under
contract number W911QX-04-C-0030. The authors would like to thank NASA
Glenn Research Center (Dr. Don Roth and Rich Martin) for their
assistance with the C-scan results.
NR 5
TC 0
Z9 0
U1 0
U2 3
PU SAMPE PUBLISHERS
PI COVINA
PA 1161 PARKVIEW DRIVE, COVINA, CA 91722 USA
SN 0091-1062
J9 SAMPE J
JI Sampe J.
PD JAN-FEB
PY 2010
VL 46
IS 1
BP 6
EP 12
PG 7
WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary
SC Engineering; Materials Science
GA 535SP
UT WOS:000272991300003
ER
PT J
AU Basak, SC
Mills, D
Hawkins, DM
Bhattacharjee, AK
AF Basak, S. C.
Mills, D.
Hawkins, D. M.
Bhattacharjee, A. K.
TI Quantitative structure-activity relationship studies of antimalarial
compounds from their calculated mathematical descriptors
SO SAR AND QSAR IN ENVIRONMENTAL RESEARCH
LA English
DT Article
DE NADH:ubiquinone oxidoreductase; 4(1H)-quinolones; antimalarial activity;
Plasmodium falciparum; pharmacophore; quantitative structure-activity
relationship (QSAR); mathematical descriptors
ID PLASMODIUM-FALCIPARUM; NONORTHOGONAL PROBLEMS; MALARIA PARASITES; RIDGE
REGRESSION; INDEX; 4(1H)-QUINOLONES; VALIDATION; INVITRO; GROWTH
AB A wide range of mathematical descriptors that can be calculated without the use of any other experimental data except molecular structure were used to develop models to predict binary (+/-) antimalarial activity of a set of 86 4(1H)-quinolones in two strains of parasite: D6 and TM90-C2B (chloroquine and atovaquone susceptible). The quantitative structure-activity relationship for each strain was of high quality and showed good ability in predicting activity versus inactivity when applied to a data set containing well-known antimalarial drugs.
C1 [Basak, S. C.; Mills, D.] Univ Minnesota, Nat Resources Res Inst, Duluth, MN 55811 USA.
[Hawkins, D. M.] Univ Minnesota Twin Cities, Sch Stat, Minneapolis, MN USA.
[Bhattacharjee, A. K.] Walter Reed Army Inst Res, Dept Regulated Lab, Div Regulated Act, Silver Spring, MD USA.
RP Basak, SC (reprint author), Univ Minnesota, Nat Resources Res Inst, Duluth, MN 55811 USA.
EM sbasak@nrri.umn.edu
NR 38
TC 12
Z9 12
U1 1
U2 3
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 1062-936X
EI 1029-046X
J9 SAR QSAR ENVIRON RES
JI SAR QSAR Environ. Res.
PY 2010
VL 21
IS 1-2
BP 103
EP 125
AR PII 920009912
DI 10.1080/10629360903568614
PG 23
WC Chemistry, Multidisciplinary; Computer Science, Interdisciplinary
Applications; Environmental Sciences; Mathematical & Computational
Biology; Toxicology
SC Chemistry; Computer Science; Environmental Sciences & Ecology;
Mathematical & Computational Biology; Toxicology
GA 596BB
UT WOS:000277657200006
PM 20373216
ER
PT J
AU Resio, D
Fowler, J
AF Resio, Don
Fowler, Jimmy
TI Ship-to-Shore Causeway System For Military and Emergency Operations
SO SEA TECHNOLOGY
LA English
DT Editorial Material
C1 [Resio, Don; Fowler, Jimmy] USA, Coastal & Hydraul Lab, Engineer Res & Dev Ctr, Washington, DC 20310 USA.
RP Resio, D (reprint author), USA, Coastal & Hydraul Lab, Engineer Res & Dev Ctr, Washington, DC 20310 USA.
NR 0
TC 0
Z9 1
U1 0
U2 0
PU COMPASS PUBLICATIONS, INC
PI ARLINGTON
PA 1501 WILSON BLVD., STE 1001, ARLINGTON, VA 22209-2403 USA
SN 0093-3651
J9 SEA TECHNOL
JI Sea Technol.
PD JAN
PY 2010
VL 51
IS 1
BP 17
EP 18
PG 2
WC Engineering, Ocean
SC Engineering
GA 552VD
UT WOS:000274320800006
ER
PT B
AU Clark, JA
Tapiador, JE
McDermid, J
Cheng, PC
Agrawal, D
Ivanic, N
Slogget, D
AF Clark, John A.
Tapiador, Juan E.
McDermid, John
Cheng, Pau-Chen
Agrawal, Dakshi
Ivanic, Natalie
Slogget, Dave
BE Katsikas, S
Samarati, P
TI RISK BASED ACCESS CONTROL WITH UNCERTAIN AND TIME-DEPENDENT SENSITIVITY
SO SECRYPT 2010: PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON SECURITY
AND CRYPTOGRAPHY
LA English
DT Proceedings Paper
CT International Conference on Security and Cryptography (SECRYPT 2010)
CY JUL 26-28, 2010
CL Univ Piraeus, Athens, GREECE
SP Inst Syst & Technol Informat Control & Commun, Univ Piraeus, Univ Piraeus, Res Ctr, IEEE Commun Soc, IEEE Syst Man & Cybernet Soc
HO Univ Piraeus
DE Information sharing; Multi-level security; Risk-based access control
AB In traditional multi-level security (MLS) models, object labels are fixed assessments of sensitivity. In practice there will inevitably be some uncertainty about the damage that might be caused if a document falls into the wrong hands. Furthermore, unless specific management action is taken to regrade the label on an object, it does not change. This does not reflect the operational reality of many modern systems where there is clearly a temporal element to the actual sensitivity of information. Tactical information may be highly sensitive right now but comparatively irrelevant tomorrow whilst strategic secrets may need to be maintained for many years, decades, or even longer. In this paper we propose to model both security labels and clearances as probability distributions. We provide practical templates to model both uncertainty and temporally characterized dependencies, and show how these features can be naturally integrated into a recently proposed access control framework based on quantified risk.
C1 [Clark, John A.; Tapiador, Juan E.; McDermid, John] Univ York, Dept Comp Sci, York, N Yorkshire, England.
[Cheng, Pau-Chen; Agrawal, Dakshi] IBM Thomas J Watson Res Ctr, New York, NY USA.
[Ivanic, Natalie] US Army Res Lab, Adelphi, MD USA.
[Slogget, Dave] LogicaCMG, London, England.
RP Clark, JA (reprint author), Univ York, Dept Comp Sci, York, N Yorkshire, England.
EM jac@cs.york.ac.uk; jet@cs.york.ac.uk; jam@cs.york.ac.uk; pau@us.ibm.com;
agrawal@us.ibm.com; nivanic@arl.army.mil; dave.sloggett@logicacmg.com
FU U.S. Army Research Laboratory; U.K. Ministry of Defence
FX This research was sponsored by the U.S. Army Research Laboratory and the
U.K. Ministry of Defence and was accomplished under Agreement Number
W911NF-06-3-0001. The views and conclusions contained in this document
are those of the authors and should not be interpreted as representing
the official policies, either expressed or implied, of the U.S. Army
Research Laboratory, the U.S. Government, the U.K. Ministry of Defence
or the U.K. Government. The U.S. and U.K. Governments are authorized to
reproduce and distribute reprints for Government purposes
notwithstanding any copyright notation hereon.
NR 13
TC 1
Z9 1
U1 0
U2 0
PU SCITEPRESS
PI SETUBAL
PA AV D MANUELL, 27A 2 ESQ, SETUBAL, 2910-595, PORTUGAL
BN 978-989-8425-18-8
PY 2010
BP 5
EP 13
PG 9
WC Computer Science, Information Systems; Computer Science, Theory &
Methods
SC Computer Science
GA BG9DF
UT WOS:000393085700001
ER
PT J
AU Ratwani, KL
Zaccaro, SJ
Garven, S
Geller, DS
AF Ratwani, Krista Langkamer
Zaccaro, Stephen J.
Garven, Sena
Geller, David S.
BE Rothstein, MG
Burke, RJ
TI The role of developmental social networks in effective leader
self-learning processes
SO SELF-MANAGEMENT AND LEADERSHIP DEVELOPMENT
SE New Horizons in Management
LA English
DT Article; Book Chapter
ID PERFORMANCE; WORK; TIES; ORGANIZATIONS; COMMUNICATION; PERSPECTIVE;
PSYCHOLOGY; MOTIVATION
C1 [Zaccaro, Stephen J.; Geller, David S.] George Mason Univ, Fairfax, VA 22030 USA.
[Garven, Sena] USA, Res Inst Behav & Social Sci, Washington, DC USA.
NR 67
TC 0
Z9 0
U1 0
U2 1
PU EDWARD ELGAR PUBLISHING LTD
PI CHELTENHAM
PA GLENSANDA HOUSE, MONTPELLIER PARADE, CHELTENHAM GL50 1UA, GLOS, ENGLAND
BN 978-1-84844-323-5
J9 NEW HORIZ MANAG
PY 2010
BP 395
EP 426
PG 32
WC Management
SC Business & Economics
GA BST43
UT WOS:000285742600015
ER
PT S
AU Buller, M
Welles, A
Jenkins, OC
Hoyt, R
AF Buller, Mark
Welles, Alexander
Jenkins, Odest Chadwicke
Hoyt, Reed
BE Carapezza, EM
TI Extreme health sensing: the challenges, technologies, and strategies for
active health sustainment of military personnel during training and
combat missions
SO SENSORS, AND COMMAND, CONTROL, COMMUNICATIONS, AND INTELLIGENCE (C3I)
TECHNOLOGIES FOR HOMELAND SECURITY AND HOMELAND DEFENSE IX
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Sensors, and Command, Control, Communications, and
Intelligence (C31) Technologies for Homeland Security and Homeland
Defense IX
CY APR 05-09, 2010
CL Orlando, FL
SP SPIE
DE physiological status monitoring; estimating health state; situational
awareness; thermal work strain assessment
ID HEAT CASUALTIES; SYSTEM; PREVENTION; HUMANS; STRAIN
AB Military personnel are often asked to accomplish rigorous missions in extremes of climate, terrain, and terrestrial altitude. Personal protective clothing and individual equipment such as body armor or chemical biological suits and excessive equipment loads, exacerbate the physiological strain. Health, over even short mission durations, can easily be compromised. Measuring and acting upon health information can provide a means to dynamically manage both health and mission goals. However, the measurement of health state in austere military environments is challenging; (1) body worn sensors must be of minimal weight and size, consume little power, and be comfortable and unobtrusive enough for prolonged wear; (2) health states are not directly measureable and must be estimated; (3) sensor measurements are prone to noise, artifact, and failure. Given these constraints we examine current successful ambulatory physiological status monitoring technologies, review maturing sensors that may provide key health state insights in the future, and discuss unconventional analytical techniques that optimize health, mission goals, and doctrine from the perspective of thermal work strain assessment and management.
C1 [Buller, Mark; Welles, Alexander; Hoyt, Reed] USA, Environm Med Res Inst, Natick, MA 01760 USA.
RP Buller, M (reprint author), USA, Environm Med Res Inst, Natick, MA 01760 USA.
EM mark.j.buller@us.army.mil
NR 49
TC 0
Z9 0
U1 1
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8130-6
J9 PROC SPIE
PY 2010
VL 7666
AR 766610
DI 10.1117/12.853101
PG 12
WC Remote Sensing; Optics
SC Remote Sensing; Optics
GA BSS37
UT WOS:000285627900019
ER
PT S
AU Damarla, T
AF Damarla, Thyagaraju
BE Carapezza, EM
TI Minimizing the Search Space in Sniper Localization using Sensor
Configuration
SO SENSORS, AND COMMAND, CONTROL, COMMUNICATIONS, AND INTELLIGENCE (C3I)
TECHNOLOGIES FOR HOMELAND SECURITY AND HOMELAND DEFENSE IX
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Sensors, and Command, Control, Communications, and
Intelligence (C31) Technologies for Homeland Security and Homeland
Defense IX
CY APR 05-09, 2010
CL Orlando, FL
SP SPIE
DE Sniper localization; time difference of arrival; muzzle blast; shock
wave
ID SYSTEM
AB In this paper an algorithm for sniper localization using disparate single microphone sensors that uses only the time difference of arrival (TDOA) between muzzle blast and shock wave is presented. Just as in any algorithm that looks for optimal solution this algorithm also faces the local minima (possible sniper locations) problem. In order to find the global or near global solution one has to perform search over a large area. In order to reduce the computational burden, the search space needs to be small. In this paper, an upper and lower bound on the range for the search space are estimated using the sensor configuration. Based on this, the area around the bullets path is searched with the bounds on range to determine the exact or near global solution for the sniper location. The results of sniper localization algorithm applied to real data collected in a field test will be presented.
C1 USA, Res Lab, ATTN RDRL SES A, Adelphi, MD 20783 USA.
RP Damarla, T (reprint author), USA, Res Lab, ATTN RDRL SES A, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
EM thyagaraju.damarla@us.army.mil
NR 5
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8130-6
J9 PROC SPIE
PY 2010
VL 7666
AR 76662D
DI 10.1117/12.850718
PG 8
WC Remote Sensing; Optics
SC Remote Sensing; Optics
GA BSS37
UT WOS:000285627900050
ER
PT J
AU Lee, SE
Nauschuetz, W
Jordan, N
Lindler, L
Steece, R
Pfau, E
Gaydos, J
AF Lee, Seung-eun
Nauschuetz, William
Jordan, Nikki
Lindler, Luther
Steece, Richard
Pfau, Esther
Gaydos, Joel
TI Survey of Sexually Transmitted Disease Laboratory Methods in US Army
Laboratories
SO SEXUALLY TRANSMITTED DISEASES
LA English
DT Article
ID CHLAMYDIA-TRACHOMATIS INFECTIONS; PUBLIC-HEALTH LABORATORIES;
NEISSERIA-GONORRHOEAE; RECRUITS; COST; UPDATE
AB Background: Sexually transmitted diseases, in particular Chlamydia trachomatis and Neisseria gonorrhoeae, are ranked as the top 2 most commonly notified disease in the US Army. Although surveillance programs are in place to capture event data, no routine STD surveillance program captures laboratory test information.
Methods: To evaluate laboratory testing practices/methodologies in US Army laboratories in 2007, a questionnaire was distributed to all 38 US Army laboratories. The results of the survey were compared across Army installations to US civilian public health laboratories.
Results: Of 38 survey recipients, 35 (92.1%) completed the survey. Overall, 78.6% of C. trachomatis and 77.2% of N. gonorrhoeae specimens were tested by nucleic acid amplification tests. In addition, 48.6% used culture as a method of N. gonorrhoeae testing. Testing for genital herpes, trichomonas, bacterial vaginosis, syphilis, human papillomavirus, and/or premalignant/malignant cervical cells was performed by 33 of the 35 laboratories.
Conclusions: A high proportion of US Army laboratories are using NAAT technology for C. trachomatis and N. gonorrhoeae testing. A more comprehensive questionnaire may be needed to accurately describe the type and volume of other STD tests. Despite the difference in survey data acquisition between the US civilian public health laboratory survey and the US Army laboratory survey, broad comparisons such as test types were able to be made. Future surveys should be extended to other US military services and should include both civilian and military laboratories.
C1 [Lee, Seung-eun; Lindler, Luther] Armed Forces Hlth Surveillance Ctr, Silver Spring, MD 20910 USA.
[Lee, Seung-eun] Adv Mil Med Inc, Henry M Jackson Fdn, Rockville, MD USA.
[Nauschuetz, William] USA, Med Command, Ft Sam Houston, TX USA.
[Jordan, Nikki; Pfau, Esther] USA, Ctr Hlth Promot & Prevent Med, Aberdeen Proving Ground, MD USA.
[Steece, Richard] Natl Infertil Prevent Project, Pierre, SD USA.
[Pfau, Esther] Oak Ridge Inst Sci & Educ, Aberdeen Proving Ground, MD USA.
RP Lee, SE (reprint author), Armed Forces Hlth Surveillance Ctr, 503 Robert Grant Ave, Silver Spring, MD 20910 USA.
EM seungeun.lee@us.army.mil
NR 32
TC 3
Z9 4
U1 1
U2 2
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0148-5717
J9 SEX TRANSM DIS
JI Sex. Transm. Dis.
PD JAN
PY 2010
VL 37
IS 1
BP 44
EP 48
DI 10.1097/OLQ.0b013e3181b66dd6
PG 5
WC Infectious Diseases
SC Infectious Diseases
GA 538BP
UT WOS:000273159400009
PM 19734822
ER
PT J
AU de Bejar, LA
AF de Bejar, Luis A.
TI Probability of local liquefaction of saturated sands in half-space
domains under a train of surface point explosions
SO SHOCK AND VIBRATION
LA English
DT Article
AB The probability of liquefaction in saturated sand deposits subjected to a train of shear stress pulses propagating from a point blast source applied at the boundary surface of the elastic medium is investigated. The load effect is evaluated in approximate closed form using three-dimensional tensorial mathematical physics in polar cylindrical coordinates. The adopted criterion of liquefaction has been experimentally verified both in the laboratory and in the field when continua of saturated sands were subjected to equivalent cyclic shear stress due to earthquake excitation. A first-order second-moment technique for the probabilistic assessment of the liquefaction potential in practical situations is developed and implemented in a computer program. Parametric studies are conducted to examine the sensitivity of results to the second-moment characterization of intervening key physical quantities.
C1 USA, Engineer Res & Dev Ctr, Geotech & Struct Lab, ATTN CEERD GS M, Vicksburg, MS 39180 USA.
RP de Bejar, LA (reprint author), USA, Engineer Res & Dev Ctr, Geotech & Struct Lab, ATTN CEERD GS M, Bldg 5008,3909 Halls Ferry Rd, Vicksburg, MS 39180 USA.
EM Luis.A.DeBejar@erdc.usace.army.mil
FU US Department of the Army, Corps of Engineers, Headquarters
FX This investigation was sponsored by the US Department of the Army, Corps
of Engineers, Headquarters, under the Asymmetric Terrorist Threat
Reduction Research Program. The author gratefully acknowledges this
support. Permission to publish was granted by the Director of the
Geotechnical and Structures Laboratory of the US Army Engineer Research
and Development Center. Approved for public release; distribution is
unlimited.
NR 16
TC 0
Z9 0
U1 0
U2 2
PU IOS PRESS
PI AMSTERDAM
PA NIEUWE HEMWEG 6B, 1013 BG AMSTERDAM, NETHERLANDS
SN 1070-9622
J9 SHOCK VIB
JI Shock Vib.
PY 2010
VL 17
IS 1
BP 1
EP 19
DI 10.3233/SAV-2010-0494
PG 19
WC Acoustics; Engineering, Mechanical; Mechanics
SC Acoustics; Engineering; Mechanics
GA 550OZ
UT WOS:000274139000001
ER
PT J
AU Chen, MM
AF Chen, Michael M.
TI Projectile balloting attributable to gun tube curvature
SO SHOCK AND VIBRATION
LA English
DT Article
DE Projectile balloting; barrel centerline variations; gun tube curvature
modeling; design of experiments
ID MOTION
AB Transverse motion of a projectile during launch is detrimental to firing accuracy, structural integrity, and/or on-board electronics performance of the projectile. One manifest contributing factor to the undesired motion is imperfect bore centerline straightness. This paper starts with the presentation of a deterministic barrel model that possesses both vertical and lateral deviations from centerline in accordance with measurement data, followed by a novel approach to simulating comprehensive barrel centerline variations for the investigation of projectile balloting(1) motions. A modern projectile was adopted for this study. In-bore projectile responses at various locations of the projectile while traveling through the simulated gun tubes were obtained. The balloting was evaluated in both time and frequency domains. Some statistical quantities and the significance were outlined.
C1 USA, Res Lab, AMSRD ARL WM BC, Aberdeen Proving Ground, MD 21005 USA.
RP Chen, MM (reprint author), USA, Res Lab, AMSRD ARL WM BC, Aberdeen Proving Ground, MD 21005 USA.
EM michael.m.chen@arl.army.mil
FU US Department of Defense High Performance Computing Modernization
FX The measured centerline variation data provided by Dr. Mark Bundy, my
colleague at the US Army Research Laboratory, are greatly appreciated.
This work was supported in part by a grant of high-performance computing
time from the US Department of Defense High Performance Computing
Modernization program at the ARL Major Shared Resource Center, Aberdeen
Proving Ground, MD.
NR 11
TC 1
Z9 2
U1 0
U2 3
PU IOS PRESS
PI AMSTERDAM
PA NIEUWE HEMWEG 6B, 1013 BG AMSTERDAM, NETHERLANDS
SN 1070-9622
J9 SHOCK VIB
JI Shock Vib.
PY 2010
VL 17
IS 1
BP 39
EP 53
DI 10.3233/SAV-2010-0496
PG 15
WC Acoustics; Engineering, Mechanical; Mechanics
SC Acoustics; Engineering; Mechanics
GA 550OZ
UT WOS:000274139000003
ER
PT J
AU Fitz-Coy, N
Nagabhushan, V
Hale, MT
AF Fitz-Coy, Norman
Nagabhushan, Vivek
Hale, Michael T.
TI Benefits and challenges of over-actuated excitation systems
SO SHOCK AND VIBRATION
LA English
DT Article
AB This paper provides a comprehensive discussion on the benefits and technical challenges of controlling over-determined and over-actuated excitation systems ranging from 1-DOF to 6-DOF. The primary challenges of over-actuated systems result from the physical constraints imposed when the number of exciters exceeds the number of mechanical degree-of-freedom. This issue is less critical for electro-dynamic exciters which tend to be more compliant than servo-hydraulic exciters. To facilitate the technical challenges discussion, generalized methods for determining the drive output commands and the actuator input transform is presented. To further provide insights into the problem, over-actuated 1-DOF and 6-DOF examples are provided. Results are presented to support the discussions.
C1 [Hale, Michael T.] USA, Dynam Test Branch, Redstone Tech Test Ctr, Dev Test Command, Washington, DC 20310 USA.
[Fitz-Coy, Norman; Nagabhushan, Vivek] Univ Florida, Dept Mech & Aerosp Engn, Gainesville, FL 32611 USA.
RP Hale, MT (reprint author), USA, Dynam Test Branch, Redstone Tech Test Ctr, Dev Test Command, Washington, DC 20310 USA.
EM mike.hale@conus.army.mil
NR 27
TC 1
Z9 1
U1 0
U2 0
PU IOS PRESS
PI AMSTERDAM
PA NIEUWE HEMWEG 6B, 1013 BG AMSTERDAM, NETHERLANDS
SN 1070-9622
J9 SHOCK VIB
JI Shock Vib.
PY 2010
VL 17
IS 3
BP 285
EP 303
DI 10.3233/SAV-2010-0513
PG 19
WC Acoustics; Engineering, Mechanical; Mechanics
SC Acoustics; Engineering; Mechanics
GA 597QQ
UT WOS:000277775100005
ER
PT J
AU Pasour, VB
Ellner, SP
AF Pasour, V. B.
Ellner, S. P.
TI Computational and Analytic Perspectives on the Drift Paradox
SO SIAM JOURNAL ON APPLIED DYNAMICAL SYSTEMS
LA English
DT Article
DE population dynamics; hydrodynamics; individual-based model; particle
tracking; residence time; advection-diffusion equation
ID VERTICAL MIGRATION; FIELD EXPERIMENTS; FLOW REFUGIA; STREAM; RETENTION;
MODEL; LAKE; PERSISTENCE; PATCHINESS; ESTUARIES
AB The fact that many small aquatic and marine organisms manage to persist in their native environments in the presence of constant advection into unfavorable habitat is known as the "drift paradox." Although advection may determine large scale biological patterns, individual behavior such as predation or vertical/horizontal migration can dominate at smaller scales. Using both computational and analytical methods to model flow in an idealized channel, we explore the extent to which biological processes can counteract physical drivers. In particular, we investigate how different zooplankton migration behaviors affect biological retention time under a variety of flow regimes and whether a combination of physical/biological regimes exists that can resolve the drift paradox, i.e., allow the zooplankton to avoid washout for time periods much greater than the hydrologic retention time. The computational model is a three-dimensional semi-implicit hydrodynamic model which is coupled with an individual-based model for zooplankton behavior, while the analytical model is a simple partial differential equation containing both advective and behavioral components. The only behavior exhibited by the zooplankton is diel vertical migration. Our studies show that the interaction of zooplankton behavior and exchange flow can significantly influence zooplankton residence time. For a channel without vegetation, the analytical methods give biological residence times that vary by at most a day from the computational results.
C1 [Ellner, S. P.] Cornell Univ, Dept Ecol & Evolutionary Biol, Ithaca, NY 14853 USA.
[Pasour, V. B.] Duke Univ, Dept Biol, Durham, NC 27708 USA.
RP Pasour, VB (reprint author), USA, Res Off, Durham, NC 27703 USA.
EM virginia.pasour@us.army.mil; spe2@cornell.edu
NR 50
TC 4
Z9 4
U1 2
U2 7
PU SIAM PUBLICATIONS
PI PHILADELPHIA
PA 3600 UNIV CITY SCIENCE CENTER, PHILADELPHIA, PA 19104-2688 USA
SN 1536-0040
J9 SIAM J APPL DYN SYST
JI SIAM J. Appl. Dyn. Syst.
PY 2010
VL 9
IS 2
BP 333
EP U67
DI 10.1137/09075500X
PG 25
WC Mathematics, Applied; Physics, Mathematical
SC Mathematics; Physics
GA 607SS
UT WOS:000278527500003
ER
PT J
AU Velo, AP
Gazonas, GA
Ameya, T
AF Velo, Ani P.
Gazonas, George A.
Ameya, Takanobu
TI z-TRANSFORM METHODS FOR THE OPTIMAL DESIGN OF ONE-DIMENSIONAL LAYERED
ELASTIC MEDIA (vol 70, pg 762, 2009)
SO SIAM JOURNAL ON APPLIED MATHEMATICS
LA English
DT Correction
AB In this erratum, we modify the system of equations (2) including the sentence above and below it on page 764, as well as Figure 1 displayed on page 765 of the article [A. P. Velo, G. A. Gazonas, and T. Ameya, SIAM J. Appl. Math., 70 (2009), pp. 762-788].
C1 [Velo, Ani P.; Ameya, Takanobu] Univ San Diego, Dept Math & Comp Sci, San Diego, CA 92110 USA.
[Gazonas, George A.] USA, Res Lab, Weap & Mat Res Directorate, Aberdeen Proving Ground, MD 21005 USA.
RP Velo, AP (reprint author), Univ San Diego, Dept Math & Comp Sci, 5998 Alcala Pk, San Diego, CA 92110 USA.
EM avelo@sandiego.edu; gazonas@arl.army.mil; tameya@sandiego.edu
NR 1
TC 0
Z9 0
U1 1
U2 1
PU SIAM PUBLICATIONS
PI PHILADELPHIA
PA 3600 UNIV CITY SCIENCE CENTER, PHILADELPHIA, PA 19104-2688 USA
SN 0036-1399
J9 SIAM J APPL MATH
JI SIAM J. Appl. Math.
PY 2010
VL 70
IS 5
BP 1736
EP 1737
DI 10.1137/090773416
PG 2
WC Mathematics, Applied
SC Mathematics
GA 595AS
UT WOS:000277583700008
ER
PT S
AU Rao, RM
Slamani, MA
Chyba, TH
Emge, DK
AF Rao, Raghuveer M.
Slamani, Mohamed-Adel
Chyba, Thomas H.
Emge, Darren K.
BE Drummond, OE
TI Wavelet-based denoising and baseline correction for enhancing chemical
detection
SO SIGNAL AND DATA PROCESSING OF SMALL TARGETS 2010
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Signal and Data Processing of Small Targets 2010
CY APR 05-08, 2010
CL Orlando, FL
SP SPIE
DE Chemical detection; Raman spectra; Wavelet Processing; Denoising;
Baseline Correction
AB Various chemical agents have been known to provide unique Raman spectrum signatures. Practical methods for chemical detection have to deal with cluttered data where the desired agent's signature is mixed with those of other chemicals in the immediate environment. It has been found that unmixing is affected by strong background signatures, such as those from the substrate, and noise. This work investigates use of wavelet transform based techniques for denoising and baseline correction for the purpose of enhancing the probability of detection of a desired agent.
C1 [Rao, Raghuveer M.] USA, Army Res Lab, Adelphi, MD 20783 USA.
RP Rao, RM (reprint author), USA, Army Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
NR 6
TC 2
Z9 2
U1 0
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8162-7
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7698
AR 769808
DI 10.1117/12.850307
PG 12
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BSO08
UT WOS:000285051900008
ER
PT S
AU Klett, KK
AF Klett, Karl K., Jr.
BE Kadar, I
TI Signal-to-solar clutter calculations of AK-47 muzzle flash at various
spectral bandpasses near the Potassium D1/D2 doublet
SO SIGNAL PROCESSING, SENSOR FUSION, AND TARGET RECOGNITION XIX
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Signal Processing, Sensor Fusion, and Target Recognition
XIX
CY APR 05-07, 2010
CL Orlando, FL
SP SPIE
DE small arms muzzle flash; AK-47; threat detection; potassium doublet;
atmospheric radiance
ID OPTICAL FILTER
AB An analysis was performed, using MODTRAN, to determine the best filters to use for detecting the muzzle flash of an AK-47 in daylight conditions in the desert. Filters with bandwidths of 0.05, 0.1, 0.5, 1.0, 3.0, and 5.0 nanometers (nm) were analyzed to understand how the optical bandwidth affects the signal-to-solar clutter ratio. These filters were evaluated near the potassium D1 and D2 doublet emission lines that occur at 769.89 and 766.49 nm respectively that are observed where projectile propellants are used. The maximum spectral radiance, from the AK-47 muzzle flash, is 1.88 x 10(-2) W/cm(2) str micron, and is approximately equal to the daytime atmospheric spectral radiance. The increased emission, due to the potassium doublet lines, and decreased atmospheric transmission, due to oxygen absorption, combine to create a condition where the signal-to-solar clutter ratio is greater than 1. The 3 nm filter, has a signal-to-solar clutter ratio of 2.09 when centered at 765.37 nm and provides the best combination of both cost and signal sensitivity.
C1 USA, Res Lab, Sensors & Elect Devices Directorate, Adelphi, MD 20783 USA.
RP Klett, KK (reprint author), USA, Res Lab, Sensors & Elect Devices Directorate, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
EM karl.klett@arl.army.mil
NR 18
TC 0
Z9 0
U1 1
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8161-0
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7697
AR 76971I
DI 10.1117/12.851049
PG 8
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BSN17
UT WOS:000284995500051
ER
PT S
AU Zhang, QC
Agarwal, A
Burk, A
O'Loughlin, M
Palmour, J
Stahlbush, R
Scozzie, C
AF Zhang, Qingchun (Jon)
Agarwal, Anant
Burk, Albert
O'Loughlin, Michael
Palmour, John
Stahlbush, Robert
Scozzie, Charles
BE Bauer, AJ
Friedrichs, P
Krieger, M
Pensl, G
Rupp, R
Seyller, T
TI Influence of Shockley Stacking Fault Generation on Electrical Behavior
of 4H-SiC 10 kV MPS diodes
SO SILICON CARBIDE AND RELATED MATERIALS 2009, PTS 1 AND 2
SE Materials Science Forum
LA English
DT Proceedings Paper
CT 13th International Conference on Silicon Carbide and Related Materials
CY OCT 11-16, 2009
CL Nurnberg, GERMANY
SP German Res Fdn, SiCED, Aixtron, GE, ECPE, Cree, Dow Corning, Fraunhofer Inst Integrated Syst & Device Technol, Lehrrieder, French German Res Inst St Louis, SiCrystal, LOT Oriel, Semi Directory
DE SiC; Stacking fault; Basal plane dislocation; MPS diode; Secondary diode
AB The influence of stacking fault (SF) generation on the reverse blocking characteristics has been investigated on SiC 10 kV, 5 A Merged PiN (MPS) diodes. For the first time, we have observed that the generation of SFs under forward biased stress increases the reverse leakage current. In addition, the presence of a secondary diode formed by the electrical stress was observed and attributed to the breakdown voltage failure on certain devices.
C1 [Zhang, Qingchun (Jon); Agarwal, Anant; Burk, Albert; O'Loughlin, Michael; Palmour, John] Cree Inc, 3026 E Cornwallis Rd, Res Triangle Pk, NC 27709 USA.
[Stahlbush, Robert] Naval Res Lab, Washington, DC 20375 USA.
[Scozzie, Charles] Army Res Lab, Adelphi, MD 20783 USA.
RP Zhang, QC (reprint author), Cree Inc, 3026 E Cornwallis Rd, Res Triangle Pk, NC 27709 USA.
EM Jon_Zhang@cree.com
FU Army Research Laboratory Adelphi, Md [W911NF-04-2-0022]
FX This research was funded through the Cooperative Research Agreement
W911NF-04-2-0022 program supported by the Army Research Laboratory
Adelphi, Md.
NR 3
TC 2
Z9 2
U1 0
U2 2
PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 0255-5476
J9 MATER SCI FORUM
PY 2010
VL 645-648
BP 331
EP +
DI 10.4028/www.scientific.net/MSF.645-648.331
PN 1-2
PG 2
WC Materials Science, Composites
SC Materials Science
GA BPQ78
UT WOS:000279657600078
ER
PT S
AU Cochrane, CJ
Bittel, BC
Lenahan, PM
Fronheiser, J
Matocha, K
Lelis, A
AF Cochrane, C. J.
Bittel, B. C.
Lenahan, P. M.
Fronheiser, J.
Matocha, K.
Lelis, A.
BE Bauer, AJ
Friedrichs, P
Krieger, M
Pensl, G
Rupp, R
Seyller, T
TI EDMR and EPR Studies of 4H SiC MOSFETs and Capacitors
SO SILICON CARBIDE AND RELATED MATERIALS 2009, PTS 1 AND 2
SE Materials Science Forum
LA English
DT Proceedings Paper
CT 13th International Conference on Silicon Carbide and Related Materials
CY OCT 11-16, 2009
CL Nurnberg, GERMANY
SP German Res Fdn, SiCED, Aixtron, GE, ECPE, Cree, Dow Corning, Fraunhofer Inst Integrated Syst & Device Technol, Lehrrieder, French German Res Inst St Louis, SiCrystal, LOT Oriel, Semi Directory
DE magnetic resonance; interface traps; ESR; EPR; SDR; EDMR
AB We have extended a magnetic resonance based study of MOS devices to include electrically detected magnetic resonance (EDMR) measurements of fully processed MOSFETs from three facilities as well as conventional electron paramagnetic resonance (EPR) resonance measurements on simple SiC/SiO2 structures. We find close similarity between the conventional EPR and the EDMR spectra.
C1 [Cochrane, C. J.; Bittel, B. C.; Lenahan, P. M.] Penn State Univ, University Pk, PA 16802 USA.
[Fronheiser, J.; Matocha, K.] GE Global Res, Niskayuna, NY 12309 USA.
[Lelis, A.] US Army Res Lab, Adelphi, MD 20783 USA.
RP Cochrane, CJ (reprint author), Penn State Univ, University Pk, PA 16802 USA.
EM bcb183@psu.edu
NR 4
TC 0
Z9 0
U1 0
U2 3
PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 0255-5476
J9 MATER SCI FORUM
PY 2010
VL 645-648
BP 527
EP +
DI 10.4028/www.scientific.net/MSF.645-648.527
PN 1-2
PG 2
WC Materials Science, Composites
SC Materials Science
GA BPQ78
UT WOS:000279657600126
ER
PT S
AU Veliadis, V
Hearne, H
Stewart, EJ
Howell, R
Lelis, A
Scozzie, C
AF Veliadis, V.
Hearne, H.
Stewart, E. J.
Howell, R.
Lelis, A.
Scozzie, C.
BE Bauer, AJ
Friedrichs, P
Krieger, M
Pensl, G
Rupp, R
Seyller, T
TI Feasibility of efficient power switching using short-channel 1200-V
Normally-Off SiC VJFETs; experimental analysis and simulations
SO SILICON CARBIDE AND RELATED MATERIALS 2009, PTS 1 AND 2
SE Materials Science Forum
LA English
DT Proceedings Paper
CT 13th International Conference on Silicon Carbide and Related Materials
CY OCT 11-16, 2009
CL Nurnberg, GERMANY
SP German Res Fdn, SiCED, Aixtron, GE, ECPE, Cree, Dow Corning, Fraunhofer Inst Integrated Syst & Device Technol, Lehrrieder, French German Res Inst St Louis, SiCrystal, LOT Oriel, Semi Directory
DE SiC; JFET; vertical channel; normally-off (N-OFF); enhancement mode;
1200 V; current gain
ID OPERATION; JFET
AB A recessed implanted-gate short-channel 1290-V normally-OFF 4H-SiC vertical-channel JFET (VJFET), fabricated in seven photolithographic-levels, with a single masked ion-implantation and no epitaxial regrowth, is evaluated for efficient power conditioning. Under unipolar high-current-gain operation, which is required for efficient power switching, the 1200-V N-OFF (enhancement mode) VJFET exhibits prohibitively high on-state resistance. Comparison with 1200-V normally-ON VJFETs, fabricated on the same wafer, confirms experimentally that the strong gate-depletion-region overlap required for 1200-V normally-OFF blocking is the principal contributor to the prohibitively high specific on-state resistance observed under high current-gain VJFET operation. Recessed-implanted-gate VJFET channel-region optimization simulations (assuming a single commercial implantation and no epitaxial-regrowth) revealed that although aggressively increasing channel doping lowers resistance, the corresponding reduction in source mesa-width can prohibitively limit manufacturability.
C1 [Veliadis, V.; Hearne, H.; Stewart, E. J.; Howell, R.] Northrop Grumman Elect Syst, Linthicum, MD 21090 USA.
[Lelis, A.; Scozzie, C.] US Army, Res Lab, Adelphi, MD 20783 USA.
RP Veliadis, V (reprint author), Northrop Grumman Elect Syst, Linthicum, MD 21090 USA.
EM victor.veliadis@yahoo.com; harold.hearne@ngc.com;
eric.j.stewart@ngc.com; rs.howell@ngc.com; alelis@arl.army.mil;
sscozzie@arl.army.mil
NR 14
TC 2
Z9 2
U1 0
U2 1
PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 0255-5476
J9 MATER SCI FORUM
PY 2010
VL 645-648
BP 929
EP +
DI 10.4028/www.scientific.net/MSF.645-648.929
PN 1-2
PG 2
WC Materials Science, Composites
SC Materials Science
GA BPQ78
UT WOS:000279657600221
ER
PT S
AU Ryu, S
Hull, B
Dhar, S
Cheng, L
Zhang, Q
Richmond, J
Das, M
Agarwal, A
Palmour, J
Lelis, A
Geil, B
Scozzie, C
AF Ryu, S.
Hull, B.
Dhar, S.
Cheng, L.
Zhang, Q.
Richmond, J.
Das, M.
Agarwal, A.
Palmour, J.
Lelis, A.
Geil, B.
Scozzie, C.
BE Bauer, AJ
Friedrichs, P
Krieger, M
Pensl, G
Rupp, R
Seyller, T
TI Performance, Reliability, and Robustness of 4H-SiC Power DMOSFETs
SO SILICON CARBIDE AND RELATED MATERIALS 2009, PTS 1 AND 2
SE Materials Science Forum
LA English
DT Proceedings Paper
CT 13th International Conference on Silicon Carbide and Related Materials
CY OCT 11-16, 2009
CL Nurnberg, GERMANY
SP German Res Fdn, SiCED, Aixtron, GE, ECPE, Cree, Dow Corning, Fraunhofer Inst Integrated Syst & Device Technol, Lehrrieder, French German Res Inst St Louis, SiCrystal, LOT Oriel, Semi Directory
DE Power DMOSFET; Short Circuit capability; Avalanche power; MOS
reliability
ID DEPENDENCE
AB In this paper, we review the performance, reliability, and robustness of the current 4H-SiC power DMOSFETs. Due to advances in device and materials technology, high power, large area 4H-SiC power DMOSFETs (1200 V, 67 A and 3000 V, 30 A) can be fabricated with reasonable yields. The availability of large area devices has enabled the demonstration of the first MW class, all SiC power modules. Evaluations of 1200 V 4H-SiC DMOSFETs showed that the devices offer avalanche power exceeding those of commercially available silicon power MOSFETs, and have the sufficient short circuit robustness required in most motor drive applications. A recent TDDB study showed that the gate oxides in 4H-SiC MOSFETs have good reliability, with a 100-year lifetime at 375 degrees C if E-ox is limited to 3.9 MV/cm. Future work on MOS reliability should be focused on V-th shifts, instead of catastrophic failures of gate oxides.
C1 [Ryu, S.; Hull, B.; Dhar, S.; Cheng, L.; Zhang, Q.; Richmond, J.; Das, M.; Agarwal, A.; Palmour, J.] Cree Inc, 4600 Silicon Dr, Durham, NC 27703 USA.
[Lelis, A.; Geil, B.; Scozzie, C.] US Army Res Lab, Adelphi, MD 20783 USA.
RP Ryu, S (reprint author), Cree Inc, 4600 Silicon Dr, Durham, NC 27703 USA.
EM sei-hyung_ryu@cree.com
FU Army Research Laboratory [W911NF-04-02-0021]; Office of Naval Research
[N00014-08-C-0495]
FX The works on 1.2 kV power DMOSFETs, high power Modules, and MOSFET
reliability and robustness were supported by Army Research Laboratory
(W911NF-04-02-0021), monitored by Dr. C. J. Scozzie. The module
development was performed by Powerex under this program. The work on 3
kV power DMOSFETs was supported by Office of Naval Research
(N00014-08-C-0495), monitored by Dr. P. Maki.
NR 8
TC 21
Z9 21
U1 1
U2 6
PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 0255-5476
J9 MATER SCI FORUM
PY 2010
VL 645-648
BP 969
EP +
DI 10.4028/www.scientific.net/MSF.645-648.969
PN 1-2
PG 2
WC Materials Science, Composites
SC Materials Science
GA BPQ78
UT WOS:000279657600231
ER
PT S
AU Potbhare, S
Akturk, A
Goldsman, N
Lelis, A
Dhar, S
Agarwal, A
AF Potbhare, Siddharth
Akturk, Akin
Goldsman, Neil
Lelis, Aivars
Dhar, Sarit
Agarwal, Anant
BE Bauer, AJ
Friedrichs, P
Krieger, M
Pensl, G
Rupp, R
Seyller, T
TI Effect of Band-edge Interface Traps and Transition Region Mobility on
Transport in 4H-SiC MOSFETs
SO SILICON CARBIDE AND RELATED MATERIALS 2009, PTS 1 AND 2
SE Materials Science Forum
LA English
DT Proceedings Paper
CT 13th International Conference on Silicon Carbide and Related Materials
CY OCT 11-16, 2009
CL Nurnberg, GERMANY
SP German Res Fdn, SiCED, Aixtron, GE, ECPE, Cree, Dow Corning, Fraunhofer Inst Integrated Syst & Device Technol, Lehrrieder, French German Res Inst St Louis, SiCrystal, LOT Oriel, Semi Directory
DE Transition Region; Surface Roughness; Mobility; Interface Traps; Device
Modeling; SiC MOSFETs
AB We present physics based models for the occupation of interface traps and the mobility of the transition layer found in 4H-SiC MOSFETs and extract values for the same using combined numerical simulation and experimental characterization. The Si-C-O transition layer found in 4H-SiC MOS devices is electrically modeled as having a doping dependent mobility that is different from the regular bulk 4H-SiC bulk mobility. Compared to the high intrinsic bulk mobility of 4H-SiC, the transition layer intrinsic mobility was extracted to be approximately 165cm(2)/Vs. The occurrence of the excessive high density of interface traps near the conduction band edge led us to develop a new model for the occupation of traps lying inside the conduction band itself. Due to the conduction band trap densities being comparable to the conduction band electron states, a non-zero probability exists for their occupation, which causes the occupied trap densities to be very high in strong inversion. Detailed numerical simulations and corroboration with experiment have been performed to calibrate the models and extract physical parameter values.
C1 [Potbhare, Siddharth; Akturk, Akin; Goldsman, Neil] Univ Maryland, Dept Elect & Comp Engn, College Pk, MD 20742 USA.
[Lelis, Aivars] US Army Res Lab, Adelphi, MD 20742 USA.
[Dhar, Sarit; Agarwal, Anant] Cree Inc, Durham, NC USA.
RP Potbhare, S (reprint author), Univ Maryland, Dept Elect & Comp Engn, College Pk, MD 20742 USA.
EM potbhare@umd.edu; akturka@umd.edu; neil@umd.edu; alelis@arl.army.mil;
Sarit_Dhar@cree.com; Anant_Agarwal@cree.com
NR 4
TC 3
Z9 3
U1 0
U2 1
PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 0255-5476
J9 MATER SCI FORUM
PY 2010
VL 645-648
BP 975
EP +
DI 10.4028/www.scientific.net/MSF.645-648.975
PN 1-2
PG 2
WC Materials Science, Composites
SC Materials Science
GA BPQ78
UT WOS:000279657600232
ER
PT S
AU Lelis, AJ
Green, R
Habersat, D
Goldsman, N
AF Lelis, A. J.
Green, R.
Habersat, D.
Goldsman, N.
BE Bauer, AJ
Friedrichs, P
Krieger, M
Pensl, G
Rupp, R
Seyller, T
TI Effect of ON-state Stress on SiC DMOSFET Subthreshold I-V
Characteristics
SO SILICON CARBIDE AND RELATED MATERIALS 2009, PTS 1 AND 2
SE Materials Science Forum
LA English
DT Proceedings Paper
CT 13th International Conference on Silicon Carbide and Related Materials
CY OCT 11-16, 2009
CL Nurnberg, GERMANY
SP German Res Fdn, SiCED, Aixtron, GE, ECPE, Cree, Dow Corning, Fraunhofer Inst Integrated Syst & Device Technol, Lehrrieder, French German Res Inst St Louis, SiCrystal, LOT Oriel, Semi Directory
DE DMOSFET; leakage current; current stress; charge traps
ID THRESHOLD-VOLTAGE INSTABILITY; RELIABILITY; DEVICES
AB We have observed a noticeable increase in the instability of the I-V characteristics following an ON-state current stress, especially in the subthreshold region. An increased stretch-out and negative shift can give rise to increased leakage current in the OFF-state if proper precautions are not met to provide a proper margin for the threshold voltage. State-of-the-art 50-A MOSFETs exhibit less instability than previous 20-A devices, and devices that run hotter show a larger degradation.
C1 [Lelis, A. J.; Green, R.; Habersat, D.] USA, Res Lab, Adelphi, MD 20783 USA.
[Goldsman, N.] Univ Maryland, College Pk, MD 20742 USA.
RP Lelis, AJ (reprint author), USA, Res Lab, Adelphi, MD 20783 USA.
EM alelis@arl.army.mil; rgreen@arl.army.mil; dhabersat@arl.army.mil;
neil@umd.edu
NR 6
TC 7
Z9 7
U1 0
U2 2
PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 0255-5476
J9 MATER SCI FORUM
PY 2010
VL 645-648
BP 983
EP +
DI 10.4028/www.scientific.net/MSF.645-648.983
PN 1-2
PG 2
WC Materials Science, Composites
SC Materials Science
GA BPQ78
UT WOS:000279657600234
ER
PT S
AU Agarwal, A
Zhang, QC
Callanan, R
Capell, C
Burk, A
O'Loughlin, M
Palmour, J
Temple, V
Stahlbush, R
Caldwell, J
O'Brien, H
Scozzie, C
AF Agarwal, Anant
Zhang, Qingchun (Jon)
Callanan, Robert
Capell, Craig
Burk, Albert
O'Loughlin, Michael
Palmour, John
Temple, Victor
Stahlbush, Robert
Caldwell, Joshua
O'Brien, Heather
Scozzie, Charles
BE Bauer, AJ
Friedrichs, P
Krieger, M
Pensl, G
Rupp, R
Seyller, T
TI 9 kV, 1 cm(2) SiC Gate Turn-Off Thyristors
SO SILICON CARBIDE AND RELATED MATERIALS 2009, PTS 1 AND 2
SE Materials Science Forum
LA English
DT Proceedings Paper
CT 13th International Conference on Silicon Carbide and Related Materials
CY OCT 11-16, 2009
CL Nurnberg, GERMANY
SP German Res Fdn, SiCED, Aixtron, GE, ECPE, Cree, Dow Corning, Fraunhofer Inst Integrated Syst & Device Technol, Lehrrieder, French German Res Inst St Louis, SiCrystal, LOT Oriel, Semi Directory
DE SiC; GTO; High power; High Voltage; BPD; Stability
AB In this paper, for the first time, we report a large area (1 cm(2)) SiC GTO with 9 kV blocking voltage fabricated on 100-mm 4H-SiC substrates with much reduced Basal Plane Dislocation (BPD) density. The static and dynamic characteristics are described. A forward drop of 3.7 V at 100 A (100 A/cm(2)) is measured at 25 degrees C. A slight positive temperature coefficient of the forward drop is present at 300 A/cm(2), indicating the possibility of paralleling multiple devices for higher current capability. The device exhibits extremely low leakage currents at high temperatures. The device has shown fast turn-on time of 53.9 nsec, and similar to 3.5 mu s of turn-off time, respectively. A stable forward voltage drop after electrical stress for >1000 hours has been achieved.
C1 [Agarwal, Anant; Zhang, Qingchun (Jon); Callanan, Robert; Capell, Craig; Burk, Albert; O'Loughlin, Michael; Palmour, John] Cree Inc, 3026 E Cornwallis Rd, Res Triangle Pk, NC 27709 USA.
[Temple, Victor] Silicon Power Corp, Washington, DC 12065 USA.
[Stahlbush, Robert; Caldwell, Joshua] Naval Res Lab, Washington, DC 20375 USA.
[O'Brien, Heather; Scozzie, Charles] Army Res Lab, Adelphi, MD 20783 USA.
RP Agarwal, A (reprint author), Cree Inc, 3026 E Cornwallis Rd, Res Triangle Pk, NC 27709 USA.
EM Anant_Agarwal@cree.com
RI Caldwell, Joshua/B-3253-2008
OI Caldwell, Joshua/0000-0003-0374-2168
FU Mr. Charles Scozzie of Army Research Laboratory, Adelphi, Maryland for
the work on SiC GTO
FX The authors would like to acknowledge the funding support from Mr.
Charles Scozzie of Army Research Laboratory, Adelphi, Maryland for the
work on SiC GTO. The authors are indebted to Dr. Victor Temple of
Silicon Power Corporation (SPCO) for the design and packaging of SiC
GTOs
NR 2
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PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 0255-5476
J9 MATER SCI FORUM
PY 2010
VL 645-648
BP 1017
EP +
DI 10.4028/www.scientific.net/MSF.645-648.1017
PN 1-2
PG 2
WC Materials Science, Composites
SC Materials Science
GA BPQ78
UT WOS:000279657600242
ER
PT S
AU Zhang, QC
Callanan, R
Agarwal, A
Burk, A
O'Loughlin, M
Palmour, J
Scozzie, C
AF Zhang, Qingchun (Jon)
Callanan, Robert
Agarwal, Anant
Burk, Albert
O'Loughlin, Michael
Palmour, John
Scozzie, Charles
BE Bauer, AJ
Friedrichs, P
Krieger, M
Pensl, G
Rupp, R
Seyller, T
TI 10 kV, 10 A Bipolar Junction Transistors and Darlington Transistors on
4H-SiC
SO SILICON CARBIDE AND RELATED MATERIALS 2009, PTS 1 AND 2
SE Materials Science Forum
LA English
DT Proceedings Paper
CT 13th International Conference on Silicon Carbide and Related Materials
CY OCT 11-16, 2009
CL Nurnberg, GERMANY
SP German Res Fdn, SiCED, Aixtron, GE, ECPE, Cree, Dow Corning, Fraunhofer Inst Integrated Syst & Device Technol, Lehrrieder, French German Res Inst St Louis, SiCrystal, LOT Oriel, Semi Directory
DE SiC; BJT; Darlington transistor; Current gain
AB 4H-SiC Bipolar Junction Transistors (BJTs) and hybrid Darlington Transistors with 10 kV/10 A capability have beep for the first time. The SiC BJT (chip size: 0.75 cm(2) with an active area of 0.336 cm(2)) conducts a collector current of 10 A (similar to 30 A/cm(2)) with a forward voltage drop of 4.0 V (forced current gain beta(forced): 20) corresponding to a specific on-resistance of 130 m Omega center dot cm(2) at 25 C. The DC current gain, [3, at a collector voltage of 15 V is measured to be 28 at a base current of 1 A. Both open emitter breakdown voltage (BVCBO) and open base breakdown voltage (BVCEO) of similar to 10 kV have been achieved. The 10 kV SiC Darlington transistor pair consists of a 10 A SiC BJT as the output device and a 1 A SiC BJT as the driver. The forward voltage drop of 4.5 V is measured at 10 A of collector current. The DC forced current gain at the collector voltage of 5.0 V was measured to be 440 at room temperature.
C1 [Zhang, Qingchun (Jon); Callanan, Robert; Agarwal, Anant; Burk, Albert; O'Loughlin, Michael; Palmour, John] Cree Inc, 3026 E Cornwallis Rd, Res Triangle Pk, NC 27709 USA.
[Scozzie, Charles] US Army, Res Lab, Adelphi, MD 20783 USA.
RP Zhang, QC (reprint author), Cree Inc, 3026 E Cornwallis Rd, Res Triangle Pk, NC 27709 USA.
EM Jon_Zhang@cree.com
FU Cooperative Agreement [W911NF-04-2-0022]; Army Research Laboratory in
Adelphi, Md
FX This research was funded through the Cooperative Agreement
W911NF-04-2-0022 program supported by the Army Research Laboratory in
Adelphi, Md.
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PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 0255-5476
J9 MATER SCI FORUM
PY 2010
VL 645-648
BP 1025
EP +
DI 10.4028/www.scientific.net/MSF.645-648.1025
PN 1-2
PG 2
WC Materials Science, Composites
SC Materials Science
GA BPQ78
UT WOS:000279657600244
ER
PT S
AU Zhang, QC
Richmond, J
Capell, C
Agarwal, A
Palmour, J
O'Brian, H
Scozzie, C
AF Zhang, Qingchun (Jon)
Richmond, Jim
Capell, Craig
Agarwal, Anant
Palmour, John
O'Brian, Heather
Scozzie, Charles
BE Bauer, AJ
Friedrichs, P
Krieger, M
Pensl, G
Rupp, R
Seyller, T
TI A 10 kV 4H-SiC Bipolar Turn Off Thyristor (BTO) with Positive
Temperature Coefficient of V-F, Current Saturation Capability and Fast
Switching Speed
SO SILICON CARBIDE AND RELATED MATERIALS 2009, PTS 1 AND 2
SE Materials Science Forum
LA English
DT Proceedings Paper
CT 13th International Conference on Silicon Carbide and Related Materials
CY OCT 11-16, 2009
CL Nurnberg, GERMANY
SP German Res Fdn, SiCED, Aixtron, GE, ECPE, Cree, Dow Corning, Fraunhofer Inst Integrated Syst & Device Technol, Lehrrieder, French German Res Inst St Louis, SiCrystal, LOT Oriel, Semi Directory
DE SiC; GTO; BJT; BTO; thyristor; temperature coefficient; current
saturation
AB A novel power device configuration, the Bipolar Turn Off thyristor (BTO), was proposed and demonstrated in SiC. The BTO operates in anode switch configuration consisting of a 9 kV SiC p-type Gate Turn Off thyristor (GTO) and a 1600 V SiC n-type Bipolar Junction Transistor (BJT). Compared with SiC GTOs, several new features have been accomplished in the BTO: (1) A positive temperature coefficient of forward voltage drop, (2) Anode current saturation capability, and (3) A simple gate driver and fast switching speed.
C1 [Zhang, Qingchun (Jon); Richmond, Jim; Capell, Craig; Agarwal, Anant; Palmour, John] Cree Inc, 3026 E Cornwallis Rd, Res Triangle Pk, NC 27709 USA.
[O'Brian, Heather; Scozzie, Charles] Army Res Lab, Adelphi, MD 20783 USA.
RP Zhang, QC (reprint author), Cree Inc, 3026 E Cornwallis Rd, Res Triangle Pk, NC 27709 USA.
EM Jon_Zhang@cree.com
FU Army Research Laboratory Adelphi, Maryland for the work on SiC GTOs
FX The authors would like to acknowledge the funding support from Army
Research Laboratory Adelphi, Maryland for the work on SiC GTOs.
Reference:
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PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 0255-5476
J9 MATER SCI FORUM
PY 2010
VL 645-648
BP 1045
EP +
DI 10.4028/www.scientific.net/MSF.645-648.1045
PN 1-2
PG 2
WC Materials Science, Composites
SC Materials Science
GA BPQ78
UT WOS:000279657600249
ER
PT S
AU Veliadis, V
Urciuoli, D
Hearne, H
Ha, HC
Howell, R
Scozzie, C
AF Veliadis, V.
Urciuoli, D.
Hearne, H.
Ha, H. C.
Howell, R.
Scozzie, C.
BE Bauer, AJ
Friedrichs, P
Krieger, M
Pensl, G
Rupp, R
Seyller, T
TI 600-V/2-A symmetrical bi-directional power flow using vertical-channel
JFETs connected in common source configuration
SO SILICON CARBIDE AND RELATED MATERIALS 2009, PTS 1 AND 2
SE Materials Science Forum
LA English
DT Proceedings Paper
CT 13th International Conference on Silicon Carbide and Related Materials
CY OCT 11-16, 2009
CL Nurnberg, GERMANY
SP German Res Fdn, SiCED, Aixtron, GE, ECPE, Cree, Dow Corning, Fraunhofer Inst Integrated Syst & Device Technol, Lehrrieder, French German Res Inst St Louis, SiCrystal, LOT Oriel, Semi Directory
DE SiC; JFET; bi-directional; circuit breaker; normally-on; depletion mode;
1200-V
AB Bi-directional solid-state-circuit-breakers (SSCBs) are highly desirable in power-electronic fault-protection applications due to their high actuation speed and repeated fault isolation capability. Normally-on SiC vertical-channel JFETs (VJFETs) are excellent candidates for high power/temperature scalable SSCB applications as majority carrier devices with low conduction losses and stable +300 degrees C thermal characteristics. 600-V/2-A bi-directional power flow was demonstrated using two VJFETs connected back-to-back with their sources in common. The low VJFET pre-breakdown leakage currents and sharp onset of breakdown are critical in enabling bi-directional power flow. 0.1-cm(2) low conduction-loss VJFETs were designed for efficient and reliable SSCB applications.
C1 [Veliadis, V.; Hearne, H.; Ha, H. C.; Howell, R.] Northrop Grumman Elect Syst, Linthicum, MD 21090 USA.
[Urciuoli, D.; Scozzie, C.] US Army, Res Lab, Adelphi, MD 20783 USA.
RP Veliadis, V (reprint author), Northrop Grumman Elect Syst, Linthicum, MD 21090 USA.
EM victor.veliadis@ngc.com
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PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 0255-5476
J9 MATER SCI FORUM
PY 2010
VL 645-648
BP 1147
EP +
DI 10.4028/www.scientific.net/MSF.645-648.1147
PN 1-2
PG 2
WC Materials Science, Composites
SC Materials Science
GA BPQ78
UT WOS:000279657600274
ER
PT S
AU Potbhare, S
Goldsmant, N
Akturk, A
Lelis, A
AF Potbhare, Siddharth
Goldsmant, Neil
Akturk, Akin
Lelis, Aivars
BE Bauer, AJ
Friedrichs, P
Krieger, M
Pensl, G
Rupp, R
Seyller, T
TI Mixed Mode Modeling and Characterization of a 4H-SiC Power DMOSFET Based
DC-DC Power Converter
SO SILICON CARBIDE AND RELATED MATERIALS 2009, PTS 1 AND 2
SE Materials Science Forum
LA English
DT Proceedings Paper
CT 13th International Conference on Silicon Carbide and Related Materials
CY OCT 11-16, 2009
CL Nurnberg, GERMANY
SP German Res Fdn, SiCED, Aixtron, GE, ECPE, Cree, Dow Corning, Fraunhofer Inst Integrated Syst & Device Technol, Lehrrieder, French German Res Inst St Louis, SiCrystal, LOT Oriel, Semi Directory
DE 4H-SiC DMOSFET; Mixed Mode Modeling; DC-DC converter; inductive load;
switching characteristics
ID MOSFETS
AB We present detailed mixed-mode simulations of a DC-DC converter based on 4H-SiC DMOSFETs. The mixed-mode modeling enables the use of complex physics based models for the interface trap occupation and surface mobility that are typical for 4H-SiC devices, and apply them to a practical circuit application such as a DC-DC boost converter. The mixed mode simulations are performed for a reduced DC-DC converter circuit to evaluate the performance of the DMOSFET when it has an inductive load. The current inside the device and its power dissipation during switching are evaluated numerically. Further, the mixed-mode device simulation shows that the majority carriers (electrons) inside the 4H-SiC DMOSFET require a finite time to go from the ON (strongly inverted) to the OFF (depleted) state, thereby causing power dissipation and heating during the turn-off period. The peak power is dissipated in the JFET region of the device which indicates that maximum heat and therefore maximum temperature may be generated there.
C1 [Potbhare, Siddharth; Goldsmant, Neil; Akturk, Akin] Univ Maryland, Dept Elect & Comp Engn, College Pk, MD 20742 USA.
[Lelis, Aivars] US Army Res Lab, Adelphi, MD 20783 USA.
RP Potbhare, S (reprint author), Univ Maryland, Dept Elect & Comp Engn, College Pk, MD 20742 USA.
EM potbhare@umd.edu; neil@umd.edu; akturka@umd.edu; alelis@arl.army.mil
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PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 0255-5476
J9 MATER SCI FORUM
PY 2010
VL 645-648
BP 1163
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DI 10.4028/www.scientific.net/MSF.645-648.1163
PN 1-2
PG 2
WC Materials Science, Composites
SC Materials Science
GA BPQ78
UT WOS:000279657600278
ER
PT J
AU Capaldi, VF
Guerrero, ML
Killgore, WD
AF Capaldi, V. F.
Guerrero, M. L.
Killgore, W. D.
TI SLEEP DISORDERS AMONG OIF AND OEF SOLDIERS
SO SLEEP
LA English
DT Meeting Abstract
C1 [Capaldi, V. F.] Walter Reed Army Med Ctr, Washington, DC 20307 USA.
[Guerrero, M. L.; Killgore, W. D.] Walter Reed Army Inst Res, Silver Spring, MD USA.
NR 0
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PU AMER ACAD SLEEP MEDICINE
PI WESTCHESTER
PA ONE WESTBROOK CORPORATE CTR, STE 920, WESTCHESTER, IL 60154 USA
SN 0161-8105
J9 SLEEP
JI Sleep
PY 2010
VL 33
SU S
MA 0693
BP A233
EP A233
PG 1
WC Clinical Neurology; Neurosciences
SC Neurosciences & Neurology
GA V21LB
UT WOS:000208208001179
ER
PT J
AU Carter, KA
Lettieri, C
AF Carter, K. A.
Lettieri, C.
TI TRAUMATIC BRAIN INJURY INDUCED HYPERSOMNIA FOLLOWING REPETITIVE BLAST
INJURIES IN IRAQ
SO SLEEP
LA English
DT Meeting Abstract
C1 [Carter, K. A.; Lettieri, C.] Walter Reed Army Med Ctr, Washington, DC 20307 USA.
[Lettieri, C.] Uniformed Serv Univ Hlth Sci, Dept Med, Bethesda, MD 20814 USA.
NR 0
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PI WESTCHESTER
PA ONE WESTBROOK CORPORATE CTR, STE 920, WESTCHESTER, IL 60154 USA
SN 0161-8105
J9 SLEEP
JI Sleep
PY 2010
VL 33
SU S
MA 0798
BP A267
EP A267
PG 1
WC Clinical Neurology; Neurosciences
SC Neurosciences & Neurology
GA V21LB
UT WOS:000208208001283
ER
PT J
AU Carter, KA
Lettieri, C
Lettieri, C
Hoffman, M
Nassar, P
AF Carter, K. A.
Lettieri, C.
Lettieri, C.
Hoffman, M.
Nassar, P.
TI DOES HOME SLEEP TESTING IMPAIR CPAP COMPLIANCE IN PATIENTS WITH
OBSTRUCTIVE SLEEP APNEA?
SO SLEEP
LA English
DT Meeting Abstract
C1 [Carter, K. A.; Lettieri, C.; Hoffman, M.] Walter Reed Army Med Ctr, Washington, DC 20307 USA.
[Lettieri, C.] Uniformed Serv Univ Hlth Sci, Dept Med, Bethesda, MD 20814 USA.
[Lettieri, C.] DeWitt Army Community Hosp, Dept Family Med, Ft Belvoir, VA USA.
[Lettieri, C.] Uniformed Serv Univ Hlth Sci, Dept Med, Bethesda, MD 20814 USA.
[Nassar, P.] Jacksonville Heart Ctr, Jacksonville Heart Sleep Ctr, Jacksonville, FL USA.
NR 0
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PU AMER ACAD SLEEP MEDICINE
PI WESTCHESTER
PA ONE WESTBROOK CORPORATE CTR, STE 920, WESTCHESTER, IL 60154 USA
SN 0161-8105
J9 SLEEP
JI Sleep
PY 2010
VL 33
SU S
MA 0509
BP A172
EP A172
PG 1
WC Clinical Neurology; Neurosciences
SC Neurosciences & Neurology
GA V21LB
UT WOS:000208208000512
ER
PT J
AU Eliasson, A
Kashani, M
Mayhew, M
Vernalis, M
AF Eliasson, A.
Kashani, M.
Mayhew, M.
Vernalis, M.
TI IMPROVING SLEEP QUALITY CORRELATES WITH LOWER WEIGHT-A LONGITUDINAL
OUTCOMES STUDY
SO SLEEP
LA English
DT Meeting Abstract
C1 [Eliasson, A.; Kashani, M.; Mayhew, M.; Vernalis, M.] Walter Reed Army Med Ctr, Washington, DC 20307 USA.
[Eliasson, A.; Kashani, M.; Mayhew, M.; Vernalis, M.] Henry M Jackson Fdn Adv Mil Med, Integrat Cardiac Hlth Project, Washington, DC USA.
[Eliasson, A.; Vernalis, M.] Uniformed Serv Univ Hlth Sci, Dept Med, Bethesda, MD 20814 USA.
NR 0
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PU AMER ACAD SLEEP MEDICINE
PI WESTCHESTER
PA ONE WESTBROOK CORPORATE CTR, STE 920, WESTCHESTER, IL 60154 USA
SN 0161-8105
J9 SLEEP
JI Sleep
PY 2010
VL 33
SU S
MA 1132
BP A378
EP A378
PG 1
WC Clinical Neurology; Neurosciences
SC Neurosciences & Neurology
GA V21LB
UT WOS:000208208001615
ER
PT J
AU Hoffman, M
Lettieri, C
AF Hoffman, M.
Lettieri, C.
TI ADHERENCE TO CONTINUOUS POSITIVE AIRWAY PRESSURE TREATMENT OF
OBSTRUCTIVE SLEEP APNEA IN PATIENTS WITH POSTTRAUMATIC STRESS DISORDER
SO SLEEP
LA English
DT Meeting Abstract
C1 [Hoffman, M.; Lettieri, C.] Walter Reed Army Med Ctr, Washington, DC 20307 USA.
NR 0
TC 0
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U1 0
U2 1
PU AMER ACAD SLEEP MEDICINE
PI WESTCHESTER
PA ONE WESTBROOK CORPORATE CTR, STE 920, WESTCHESTER, IL 60154 USA
SN 0161-8105
J9 SLEEP
JI Sleep
PY 2010
VL 33
SU S
MA 0707
BP A237
EP A237
PG 1
WC Clinical Neurology; Neurosciences
SC Neurosciences & Neurology
GA V21LB
UT WOS:000208208001193
ER
PT J
AU Killgore, DB
Killgore, WD
Grugle, NL
Balkin, T
AF Killgore, D. B.
Killgore, W. D.
Grugle, N. L.
Balkin, T.
TI SUBJECTIVE SLEEPINESS AND OBJECTIVE PERFORMANCE: DIFFERENTIAL EFFECTS OF
STIMULANTS DURING SLEEP DEPRIVATION
SO SLEEP
LA English
DT Meeting Abstract
C1 [Killgore, D. B.; Killgore, W. D.; Grugle, N. L.; Balkin, T.] Walter Reed Army Inst Res, Silver Spring, MD USA.
[Killgore, W. D.] Harvard Univ, Sch Med, Belmont, MA 02178 USA.
NR 0
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PU AMER ACAD SLEEP MEDICINE
PI WESTCHESTER
PA ONE WESTBROOK CORPORATE CTR, STE 920, WESTCHESTER, IL 60154 USA
SN 0161-8105
J9 SLEEP
JI Sleep
PY 2010
VL 33
SU S
MA 0276
BP A96
EP A96
PG 1
WC Clinical Neurology; Neurosciences
SC Neurosciences & Neurology
GA V21LB
UT WOS:000208208000279
ER
PT J
AU Killgore, DB
Killgore, WD
Grugle, NL
Balkin, T
AF Killgore, D. B.
Killgore, W. D.
Grugle, N. L.
Balkin, T.
TI RESISTANCE TO SLEEP LOSS AND ITS RELATIONSHIP TO DECISION MAKING DURING
SLEEP DEPRIVATION
SO SLEEP
LA English
DT Meeting Abstract
C1 [Killgore, D. B.; Killgore, W. D.; Grugle, N. L.; Balkin, T.] Walter Reed Army Inst Res, Silver Spring, MD USA.
[Killgore, W. D.] Harvard Univ, Sch Med, Belmont, MA 02178 USA.
NR 0
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U1 1
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PI WESTCHESTER
PA ONE WESTBROOK CORPORATE CTR, STE 920, WESTCHESTER, IL 60154 USA
SN 0161-8105
J9 SLEEP
JI Sleep
PY 2010
VL 33
SU S
MA 0260
BP A91
EP A91
PG 1
WC Clinical Neurology; Neurosciences
SC Neurosciences & Neurology
GA V21LB
UT WOS:000208208000263
ER
PT J
AU Killgore, WD
Grugle, NL
Balkin, T
AF Killgore, W. D.
Grugle, N. L.
Balkin, T.
TI JUDGMENT OF OBJECTIVE VIGILANCE PERFORMANCE IS AFFECTED BY SLEEP
DEPRIVATION AND STIMULANTS
SO SLEEP
LA English
DT Meeting Abstract
C1 [Killgore, W. D.; Grugle, N. L.; Balkin, T.] Walter Reed Army Inst Res, Silver Spring, MD USA.
[Killgore, W. D.] Harvard Univ, Sch Med, Belmont, MA 02178 USA.
NR 0
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PI WESTCHESTER
PA ONE WESTBROOK CORPORATE CTR, STE 920, WESTCHESTER, IL 60154 USA
SN 0161-8105
J9 SLEEP
JI Sleep
PY 2010
VL 33
SU S
MA 0273
BP A95
EP A95
PG 1
WC Clinical Neurology; Neurosciences
SC Neurosciences & Neurology
GA V21LB
UT WOS:000208208000276
ER
PT J
AU Killgore, WD
Conrad, TA
Grugle, NL
Balkin, T
AF Killgore, W. D.
Conrad, T. A.
Grugle, N. L.
Balkin, T.
TI BASELINE EXECUTIVE FUNCTION ABILITIES PREDICT RISKY BEHAVIOR FOLLOWING
SLEEP DEPRIVATION
SO SLEEP
LA English
DT Meeting Abstract
C1 [Killgore, W. D.; Grugle, N. L.; Balkin, T.] Walter Reed Army Inst Res, Silver Spring, MD USA.
[Killgore, W. D.] Harvard Univ, Sch Med, Belmont, MA 02178 USA.
[Conrad, T. A.] McDaniel Coll, Westminster, MD USA.
NR 0
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PU AMER ACAD SLEEP MEDICINE
PI WESTCHESTER
PA ONE WESTBROOK CORPORATE CTR, STE 920, WESTCHESTER, IL 60154 USA
SN 0161-8105
J9 SLEEP
JI Sleep
PY 2010
VL 33
SU S
MA 0261
BP A91
EP A91
PG 1
WC Clinical Neurology; Neurosciences
SC Neurosciences & Neurology
GA V21LB
UT WOS:000208208000264
ER
PT S
AU Nagaraj, S
Quoraishee, S
Chan, G
Short, KR
AF Nagaraj, Sheela
Quoraishee, Shafik
Chan, Gabriel
Short, Kenneth R.
BE Cullum, BM
Porterfield, DM
Booksh, KS
TI Biometric Study Using Hyperspectral Imaging During Stress
SO SMART BIOMEDICAL AND PHYSIOLOGICAL SENSOR TECHNOLOGIES VII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Smart Biomedical and Physiological Sensor Technologies VII
CY APR 08, 2010
CL Orlando, FL
SP SPIE
DE Hyperspectral Imaging; Biometrics; Stress; Psychological; Physiological;
Skin; VNIR; Near Infrared; Non-invasive
ID FACE RECOGNITION; IMAGES
AB To the casual observer, transient stress results in a variety of physiological changes that can be seen in the face. Although the conditions can be seen visibly, the conditions affect the emissivity and absorption properties of the skin, which imaging spectrometers, commonly referred to as Hyperspectral (HS) cameras, can quantify at every image pixel. The study reported on in this paper, using Hyperspectral cameras, provides a basis for continued study of HS imaging to eventually quantify biometric stress. This study was limited to the visible to near infrared (VNIR) spectral range. Signal processing tools and algorithms have been developed and are described for using HS face data from human subjects. The subjects were placed in psychologically stressful situations and the camera data were analyzed to detect stress through changes in dermal reflectance and emissivity. Results indicate that hyperspectral imaging may potentially serve as a non-invasive tool to measure changes in skin emissivity indicative of a stressful incident. Particular narrow spectral bands in the near-infrared region of the electromagnetic spectrum seem especially important. Further studies need to be performed to determine the optimal spectral bands and to generalize the conclusions. The enormous information available in hyperspectral imaging needs further analysis and more spectral regions need to be exploited. Non-invasive stress detection is a prominent area of research with countless applications for both military and commercial use including border patrol, stand-off interrogation, access control, surveillance, and non-invasive and un-attended patient monitoring.
C1 [Nagaraj, Sheela; Quoraishee, Shafik; Chan, Gabriel] USA, RDECOM ARDEC, Picatinny Arsenal, NJ 07806 USA.
RP Nagaraj, S (reprint author), USA, RDECOM ARDEC, Picatinny Arsenal, NJ 07806 USA.
EM sheela.nagaraj@us.army.mil; shafik.quoraishee@us.army.mil;
gabriel.chan@us.army.mil; kenneth.short3@us.army.mil
NR 15
TC 0
Z9 0
U1 1
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8138-2
J9 PROC SPIE
PY 2010
VL 7674
AR 76740K
DI 10.1117/12.850282
PG 13
WC Engineering, Biomedical; Remote Sensing; Optics; Imaging Science &
Photographic Technology
SC Engineering; Remote Sensing; Optics; Imaging Science & Photographic
Technology
GA BSS32
UT WOS:000285624800018
ER
PT J
AU Nyakatawa, EZ
Mays, DA
Howard, HR
Svendsen, NG
Britton, R
Pacumbaba, RO
AF Nyakatawa, E. Z.
Mays, D. A.
Howard, H. R.
Svendsen, N. G.
Britton, R.
Pacumbaba, R. O., Jr.
TI Runoff and Sediment Transport from Compost Mulch Berms on a Simulated
Military Training Landscape
SO SOIL & SEDIMENT CONTAMINATION
LA English
DT Article
DE carbon; environmental risk; military ranges; nitrogen; sediment
transport; soil erosion
ID ORGANIC-CARBON; NITROGEN MINERALIZATION; SOIL-EROSION; LAND-USE;
DISTURBANCE; RESIDUES; RAINFALL; DECOMPOSITION; TERRESTRIAL; ENVIRONMENT
AB Soil erosion and runoff due to mechanical disturbances on military training ranges can cause problems such as land degradation and environmental pollution of downstream ecosystems. This paper discusses runoff and sediment transport from compost mulch berms on a simulated military training landscape. The berms were constructed using mixtures of municipal yard waste (YW), wood chips (WC), pine bark fines (PB), and sub-soil (SL) in eight different proportions at Hazel Green, North Alabama, in Fall 2006. Bermsmade from 100% soil, which had over 140 000 L ha(-1) of runoff and 13.3 kg ha(-1) of sediment transport over the study period, had the greatest risk of causing off-site negative environmental effects. Berms made from 100% PB and 100% WC or combinations of compost materials without soil had the lowest risk of causing environmental pollution from runoff and sediment transport. Compared to soil, compost mulches can significantly reduce negative environmental effects to downstream ecosystems when used for berm construction on military training ranges. However, measures to minimize transport of C and N in runoff sediment, such as planting grass cover crops, need to be evaluated to make the technology more environmentally sustainable.
C1 [Nyakatawa, E. Z.; Mays, D. A.; Britton, R.; Pacumbaba, R. O., Jr.] Alabama A&M Univ, Dept Nat Resources & Environm Sci, Normal, AL 35762 USA.
[Howard, H. R.; Svendsen, N. G.] USA, Construct Engn Res Lab, Engineer Res & Dev Ctr, Champaign, IL 61824 USA.
RP Nyakatawa, EZ (reprint author), Alabama A&M Univ, Dept Nat Resources & Environm Sci, POB 1208, Normal, AL 35762 USA.
EM ermson.nyakatawa@aamu.edu
FU U. S. Army, Engineering Research and Development Center-Construction
Engineering Research Laboratory (ERDC-CERL), Champaign, Illinois, USA,
FX The authors wish to extend their appreciation and acknowledgement to the
U. S. Army, Engineering Research and Development Center-Construction
Engineering Research Laboratory (ERDC-CERL), Champaign, Illinois, USA,
for providing the financial support for this research project.
NR 49
TC 0
Z9 0
U1 1
U2 2
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1532-0383
J9 SOIL SEDIMENT CONTAM
JI Soil. Sediment. Contam.
PY 2010
VL 19
IS 3
BP 307
EP 321
DI 10.1080/15320381003695231
PG 15
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA 596CA
UT WOS:000277660100004
ER
PT J
AU Semendy, F
Singh, S
Litz, M
Wijewarnasuriya, P
Blaine, K
Dhar, N
AF Semendy, F.
Singh, S.
Litz, M.
Wijewarnasuriya, P.
Blaine, K.
Dhar, N.
TI Front and back side processed unintentionally doped GaAs Schottky
detectors for X-ray detection
SO SOLID-STATE ELECTRONICS
LA English
DT Article
DE SI GaAs; Schottky detectors; I-V characteristics; X-ray detection
ID PERFORMANCE
AB This paper details the processing steps used to fabricate front and back side processed, unintentionally doped bulk GaAs Schottky detectors and presents the results of current-voltage (I-V) and X-ray characterization of the detectors. GaAs detectors with large enough thickness and low enough doping could be used for X-ray imaging, especially for medical applications. For this experiment, we fabricated GaAs Schottky wafers using front and back side photolithographic processing with Ti/Au for the Schottky contacts and Ge/Au/Ni/Au for the ohmic contacts. We then tested a number of 2 mm(2) detectors. The breakdown voltage reached 600-800 V reverse bias in these GaAs Schottky detectors and the dark current was found to be between 2 and 90 nA. These detectors were also characterized using 150 keV, 3 mA X-ray radiation and the response indicated more than a hundredfold increase in photocurrent. These detectors with their high breakdown voltage will enhance the charge collection efficiency. In addition, thicker samples with high breakdown voltage can be used. which will provide even higher stopping power, thus making these detectors suitable for high energy X-ray detection. Published by Elsevier Ltd.
C1 [Semendy, F.; Litz, M.; Wijewarnasuriya, P.; Blaine, K.; Dhar, N.] US Army, SEDD, Res Lab, Adelphi, MD 20783 USA.
[Singh, S.] Prime Circuits, Glendale, MD 20769 USA.
RP Semendy, F (reprint author), US Army, SEDD, Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
EM fsemendy@arl.army.mil
NR 9
TC 3
Z9 3
U1 0
U2 7
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0038-1101
EI 1879-2405
J9 SOLID STATE ELECTRON
JI Solid-State Electron.
PD JAN
PY 2010
VL 54
IS 1
BP 1
EP 3
DI 10.1016/j.sse.2009.09.011
PG 3
WC Engineering, Electrical & Electronic; Physics, Applied; Physics,
Condensed Matter
SC Engineering; Physics
GA 535LR
UT WOS:000272970300001
ER
PT S
AU Cole, B
Lei, J
DiLazaro, T
Schilling, B
Trussell, W
Goldberg, L
AF Cole, Brian
Lei, Jonathan
DiLazaro, Tom
Schilling, Brad
Trussell, Ward
Goldberg, Lew
BE Clarkson, WA
Hodgson, N
Shori, RK
TI Reduction in timing jitter for a Cr:YAG Q-switched Nd:YAG laser
SO SOLID STATE LASERS XIX: TECHNOLOGY AND DEVICES
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Solid State Lasers XIX - Technology and Devices
CY JAN 24-28, 2010
CL San Francisco, CA
SP SPIE
DE Solid state lasers; Nd:YAG; passively Q-switched
ID NDYAG LASER; SATURABLE ABSORBER
AB To address the issue of pulse-to-pulse timing jitter in a passively Q-switched Cr:YAG/Nd:YAG laser, we have developed a technique for optical triggering, where the energy from a single bar diode was used to bleach a thin sheet within the Cr: YAG saturable absorber from a direction orthogonal to the lasing axis. A strong anisotropy for bleaching effect was observed; with appropriate polarization of the bleaching light the transmission through the saturable absorber was increased from 45% to 63%. This technique was applied to a monolithic Cr:YAG/Nd:YAG laser operating under steady state conditions. By placing the Q-switched pulse at the time corresponding to the steepest slope for change in transmission during bleaching, which occurs similar to 1 mu s after the bleaching diode trigger, we measured an 12.5X reduction in the pulse-to-pulse timing jitter, from 100ns for free running operation to 8ns with optical triggering.
C1 [Cole, Brian; Lei, Jonathan; DiLazaro, Tom; Schilling, Brad; Trussell, Ward; Goldberg, Lew] USA, Night Vis & Elect Sensors Directorate, RDECOM CERDEC, Ft Belvoir, VA 22060 USA.
RP Cole, B (reprint author), USA, Night Vis & Elect Sensors Directorate, RDECOM CERDEC, Ft Belvoir, VA 22060 USA.
NR 12
TC 0
Z9 0
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-7974-7
J9 PROC SPIE
PY 2010
VL 7578
AR 75781Q
DI 10.1117/12.843247
PG 7
WC Optics; Physics, Applied
SC Optics; Physics
GA BSM47
UT WOS:000284936100051
ER
PT J
AU Aramaki, M
Silachamroon, U
Desakorn, V
Maek-A-Nantawat, W
Waiwaruwut, J
Jutiwarakun, K
Kim, JH
Pitisuttithum, P
AF Aramaki, Maie
Silachamroon, Udomsak
Desakorn, Varunee
Maek-a-nantawat, Wirach
Waiwaruwut, Jirachai
Jutiwarakun, Kamonwan
Kim, Jerome Hahn
Pitisuttithum, Punnee
TI IMMUNE RECONSTITUTION INFLAMMATORY SYNDROME IN ADULT HUMAN
IMMUNODEFICIENCY VIRUS-INFECTED PATIENTS IN THAILAND
SO SOUTHEAST ASIAN JOURNAL OF TROPICAL MEDICINE AND PUBLIC HEALTH
LA English
DT Article
DE IRIS; HIV-infected patients; HAART; Thailand
ID ACTIVE ANTIRETROVIRAL THERAPY; RESTORATION DISEASE; ADVANCED AIDS;
RISK-FACTORS; TUBERCULOSIS; HIV; PREVALENCE; INITIATION
AB Immune reconstitution inflammatory syndrome (IRIS) is an important ad verse event among human immunodeficiency virus (HIV)-infected patients taking highly active antiretroviral therapy (HAART). The epidemiology of IRIS in Thailand has not been well examined, especially among adult HIV-infected patients. In the present Study, we reviewed the medical records of 174 HIV-infected, antiretroviral therapy-naive patients older than 15 years (the median CD4 count at commencement of HAART was 37 cells/mm(3)) and compared characteristics of patients with and without IRIS. During a 12-month follow-up period after commencement of HAART, 11 cases (6.3%) of IRIS were identified (4.2/100 patient years HAART). The cases included nine cases with mycobacterial infection, one with cytomegalovirus retinitis and one with cryptococcal meningitis. The patients with IRIS were significantly Younger than those without IRIS (29 vs 36 on medians, p=0.022). The median interval between commencement of HAART and the onset of IRIS was 22 days. Although all patients with IRIS improved with or without corticosteroids, the were more frequently hospitalized during a 12-month folllow-up period while taking HAART (1 vs 0 on medians, p<0.001). The incidence of IRIS in advanced adult HIV-infected patients in Thailand was lower than that reported from Europe and the United States, which may be attributable to deferment of HAART after diagnosing opportunistic infections.
C1 [Aramaki, Maie; Silachamroon, Udomsak; Desakorn, Varunee; Maek-a-nantawat, Wirach; Pitisuttithum, Punnee] Mahidol Univ, Fac Trop Med, Dept Clin Trop Med, Bangkok 10400, Thailand.
[Waiwaruwut, Jirachai; Jutiwarakun, Kamonwan] Chou Buri Reg Hosp, Chon Buri, Thailand.
[Kim, Jerome Hahn] Armed Forces Res Inst Med Sci, Bangkok 10400, Thailand.
RP Silachamroon, U (reprint author), Mahidol Univ, Fac Trop Med, Dept Clin Trop Med, 420-6 Ratchawithi Rd, Bangkok 10400, Thailand.
EM tmusl@mahidol.ac.th
NR 15
TC 1
Z9 1
U1 0
U2 0
PU SOUTHEAST ASIAN MINISTERS EDUC ORGANIZATION
PI BANGKOK
PA SEAMEO-TROPMED, 420-6 RAJVITHI RD,, BANGKOK 10400, THAILAND
SN 0125-1562
J9 SE ASIAN J TROP MED
JI Southeast Asian J. Trop. Med. Public Health
PD JAN
PY 2010
VL 41
IS 1
BP 138
EP 145
PG 8
WC Public, Environmental & Occupational Health; Infectious Diseases;
Tropical Medicine
SC Public, Environmental & Occupational Health; Infectious Diseases;
Tropical Medicine
GA 552GY
UT WOS:000274277900018
PM 20578492
ER
PT J
AU Srisurapanon, S
Sukwit, S
Chuenchitra, T
Santiwattanakul, S
AF Srisurapanon, Surangrat
Sukwit, Suchitra
Chuenchitra, Thippawan
Santiwattanakul, Somchai
TI ZAP-70 POSITIVE CELLS IN TREATED AND UNTREATED HIV-1 INFECTED PATIENTS
SO SOUTHEAST ASIAN JOURNAL OF TROPICAL MEDICINE AND PUBLIC HEALTH
LA English
DT Article
DE HIV-1; ZAP-70; mean fluorescence intensity
ID TYROSINE PHOSPHATASE-ACTIVITY; T-CELLS; IMMUNE ACTIVATION; DISEASE
PROGRESSION; HIV-INFECTION; VIRAL LOAD; VIRUS; KINASE; CD4; LYMPHOCYTES
AB ZAP-70 is a critical protein tyrosine kinase in T-cell activation and proliferation processes. Defective recruitment of ZAP-70 molecules results in termination of the T-cell receptor (TCR) signal transduction pathway. Impairment of this pathway is one of the early markers of disease progression in HIV-1 infected individuals. T-cell dysfunction in HIV infected patients may be connected to a defect in the proximal TCR signaling cascade. To evaluate this presumption, the numbers and mean fluorescence intensity (MFI) of ZAP-70 positive cells in patients with treated and untreated HIV-1 infection and healthy controls were analyzed by flow cytometry. A correlation between the MFI in ZAP 70 molecules and the viral load was evaluated. A total of 41 HIV-1 infected patients, 30 patients oil HAART and 11 untreated patients, and 11 healthy controls were enrolled. The data show ZAP-70+/CD4+ cells in treated and Untreated HIV-1 infected individuals had a greater MFI of ZAP-70 molecules than those from healthy controls (p<0.001). The inverse correlation between the percentage of CD4+cells and the MFI of ZAP-70+/CD4+ T-cells was significant (r =-0.5; p <0.01). A stronger correlation between the percentage of CD4+/CD25+ cells and the MFI of ZAP-70+/CD4+ cells was observed (r =-0.6; p<0.01). However, no significant correlation was seen between the MFI of the ZAP-70+/CD4+cells and the viral load in patients with untreated HIV-1 infection (r =-0.4, p = 0.16). For HIV-1 treated patients, the viral loads were too low to detect so it was not possible to calculate the correlation. Elevated MFI levels of ZAP-70 molecules in CD4+cells in HIV infected patients may be associated with an inability to further activate T-cells.
C1 [Srisurapanon, Surangrat; Santiwattanakul, Somchai] Srinakharinwirot Univ, Fac Med, Dept Pathol, Bangkok 10110, Thailand.
[Sukwit, Suchitra] Army Inst Pathol, Bangkok, Thailand.
[Chuenchitra, Thippawan] Armed Forces Res Inst Med Sci, Bangkok 10400, Thailand.
RP Srisurapanon, S (reprint author), Srinakharinwirot Univ, Fac Med, Dept Pathol, Sukumwit 23,Sukumvit Rd, Bangkok 10110, Thailand.
EM surangra@swu.ac.th
FU Faculty of Medicine, Srinakharinwirot University, Thailand
FX We are indebted to all the patients who enrolled in this study. This
work was funded by the Faculty of Medicine, Srinakharinwirot University,
Thailand.
NR 32
TC 0
Z9 0
U1 0
U2 2
PU SOUTHEAST ASIAN MINISTERS EDUC ORGANIZATION
PI BANGKOK
PA SEAMEO-TROPMED, 420-6 RAJVITHI RD,, BANGKOK 10400, THAILAND
SN 0125-1562
J9 SE ASIAN J TROP MED
JI Southeast Asian J. Trop. Med. Public Health
PD JAN
PY 2010
VL 41
IS 1
BP 146
EP 152
PG 7
WC Public, Environmental & Occupational Health; Infectious Diseases;
Tropical Medicine
SC Public, Environmental & Occupational Health; Infectious Diseases;
Tropical Medicine
GA 552GY
UT WOS:000274277900019
PM 20578493
ER
PT B
AU Noyes, JM
Haas, E
AF Noyes, Jan M.
Haas, Ellen
BE Chen, F
Jokinen, K
TI Military Applications: Human Factors Aspects of Speech-Based Systems
SO SPEECH TECHNOLOGY: THEORY AND APPLICATIONS
LA English
DT Article; Book Chapter
ID RECOGNITION; VOICE; STRESS
C1 [Noyes, Jan M.] Univ Bristol, Bristol, Avon, England.
[Haas, Ellen] USA, Res Lab, Adelphi, MD 20783 USA.
RP Noyes, JM (reprint author), Univ Bristol, Bristol, Avon, England.
EM j.noyes@bristol.ac.uk; ehaas@arl.army.mil
NR 69
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-0-387-73818-5
PY 2010
BP 251
EP 270
DI 10.1007/978-0-387-73819-2_13
D2 10.1007/978-0-387-73819-2
PG 20
WC Computer Science, Artificial Intelligence; Engineering, Electrical &
Electronic
SC Computer Science; Engineering
GA BQC24
UT WOS:000280656100013
ER
PT B
AU Powell, HL
Frost, FS
AF Powell, Heather Lynn
Frost, Fredrick S.
BE Lin, VW
TI Nutrition in Spinal Cord Injury
SO SPINAL CORD MEDICINE: PRINCIPLES AND PRACTICE, SECOND EDITION
LA English
DT Article; Book Chapter
ID RESTING ENERGY-EXPENDITURE; BODY-MASS INDEX; METABOLIC RESPONSE;
VITAMIN-D; PARAPLEGIC PATIENTS; VETERANS; MEN; HYPONATREMIA; PREALBUMIN;
DIETARY
C1 [Frost, Fredrick S.] Cleveland Clin, Lerner Coll Med, Dept Phys Med & Rehabil, Cleveland, OH 44106 USA.
[Powell, Heather Lynn] Walter Reed Army Med Ctr, Dept Phys Med & Rehabil Serv, Integrated Dept Orthopaed & Rehabil, Washington, DC 20307 USA.
RP Powell, HL (reprint author), Walter Reed Army Med Ctr, Dept Phys Med & Rehabil Serv, Integrated Dept Orthopaed & Rehabil, Washington, DC 20307 USA.
NR 85
TC 0
Z9 0
U1 0
U2 1
PU DEMOS MEDICAL PUBLICATIONS
PI NEW YORK
PA 11 WEST 42ND STREET, 15TH FLOOR, NEW YORK, NY 10036 USA
BN 978-1-933864-19-8
PY 2010
BP 310
EP 322
PG 13
WC Clinical Neurology; Rehabilitation
SC Neurosciences & Neurology; Rehabilitation
GA BOJ93
UT WOS:000276871800025
ER
PT J
AU Tis, JE
O'Brien, MF
Newton, PO
Lenke, LG
Clements, DH
Harms, J
Betz, RR
AF Tis, John E.
O'Brien, Michael F.
Newton, Peter O.
Lenke, Lawrence G.
Clements, David H.
Harms, Juergen
Betz, Randal R.
TI Adolescent Idiopathic Scoliosis Treated With Open Instrumented Anterior
Spinal Fusion Five-Year Follow-up
SO SPINE
LA English
DT Article
DE adolescent idiopathic scoliosis; open instrumented anterior spinal
fusion; primary thoracic (Lenke 1); pulmonary function; radiographic
results; complications
ID PEDICLE SCREW FIXATION; VENTRAL DEROTATION SPONDYLODESIS; HALM-ZIELKE
INSTRUMENTATION; DUAL ROD INSTRUMENTATION; THORACIC SCOLIOSIS; POSTERIOR
INSTRUMENTATION; VERTEBRAL ROTATION; PULMONARY-FUNCTION; OPEN
THORACOTOMY; CURVE CORRECTION
AB Study Design. A multicenter prospective database was queried for patients who underwent open instrumented anterior spinal fusion (OASF) for treatment of primary thoracic (Lenke 1) adolescent idiopathic scoliosis (AIS).
Objectives. To present the intermediate radiographic and pulmonary function testing (PFT) data from patients who underwent OASF using modern, rigid instrumentation.
Summary of Background Data. Anterior spinal fusion is an excellent method to correct the 3-dimensional deformity produced by AIS. Modern instrumentation consisting of stronger metals, unthreaded rods, and dual rod systems should theoretically decrease the incidence of rod breakage, pseudarthrosis, and loss of correction seen in earlier OASF studies. The paucity of intermediate and long-term data prevents surgeons and patients from making an informed decision regarding the true incidence of these complications.
Methods. Of 101 potential patients who underwent OASF with a minimum 5-year follow-up, 85 (85%) were studied. Standing radiographs were analyzed before surgery and at first standing erect, 2-year, and 5-year follow-up. PFT data were collected before surgery and at 5 years after surgery.
Results. Complete 5-year follow-up was obtained in 85 patients. Five years after surgery, the mean coronal correction was 26 (51%; P < 0.05) and the thoracolumbar/lumbar curve improved 16 ( 51%). There was a 9-degree ( P < 0.001) increase in kyphosis, and there were 9 patients (11%) in whom the C7 plumb line translated > 2 cm. There was a 6.7% decrease in predicted FEV(1) over the 5-year period, from 75.5% +/- 13% before surgery to 68.8% +/- 2% at 5-year follow-up ( P = 0.007); however, there was no significant change in FVC. There were 3 significant adverse events: 1 implant breakage requiring reoperation and 2 cases of progression of the main thoracic curve requiring reoperation.
Conclusion. OASF is a reproducible and safe method to treat thoracic AIS. It provides good coronal and sagittal correction of the main thoracic and compensatory thoracolumbar/lumbar curves that is maintained with intermediate term follow-up. In skeletally immature children, this technique can cause an increase in kyphosis beyond normal values, and less correction of kyphosis should be considered during instrumentation. As with any procedure that employs a thoracotomy, pulmonary function is mildly decreased at final follow-up.
C1 [Clements, David H.; Betz, Randal R.] Shriners Hosp Children, Philadelphia, PA 19140 USA.
[Tis, John E.] Walter Reed Army Med Ctr, Wa, DC USA.
[O'Brien, Michael F.] Miami Childrens Hosp, Dept Orthoped Surg, Miami, FL USA.
[Newton, Peter O.] Univ Calif San Diego, Dept Orthopaed Surg, San Diego, CA 92103 USA.
[Lenke, Lawrence G.] WA Univ, Sch Med, Dept Orthopaed Surg, St Louis, MO USA.
[Clements, David H.] Cooper Bone & Joint Inst, Camden, NJ USA.
[Harms, Juergen] SRH Klinikum Karlsbad Langensteinbach, Karlsbad, Germany.
RP Betz, RR (reprint author), Shriners Hosp Children, 3551 N Broad St, Philadelphia, PA 19140 USA.
EM randalbetz@aol.com
NR 47
TC 9
Z9 10
U1 0
U2 3
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0362-2436
J9 SPINE
JI SPINE
PD JAN 1
PY 2010
VL 35
IS 1
BP 64
EP 70
DI 10.1097/BRS.0b013e3181c4af52
PG 7
WC Clinical Neurology; Orthopedics
SC Neurosciences & Neurology; Orthopedics
GA 551WX
UT WOS:000274245200011
PM 20042957
ER
PT J
AU Dmitriev, AE
Farhang, S
Lehman, RA
Ling, GSF
Symes, AJ
AF Dmitriev, Anton E.
Farhang, Suzanne
Lehman, Ronald A., Jr.
Ling, Geoffrey S. F.
Symes, Aviva J.
TI Bone morphogenetic protein-2 used in spinal fusion with spinal cord
injury penetrates intrathecally and elicits a functional signaling
cascade
SO SPINE JOURNAL
LA English
DT Article
DE Bone morphogenetic protein-2; Spinal arthrodesis; Spinal cord injury;
Complications; Animal model
AB BACKGROUND CONTEXT: The use of recombinant human bone morphogenetic protein-2 (rhBMP-2) and its indications for spinal fusion continue to be expanded with recent reports citing spinal trauma application. However, there are no data establishing the effects of rhBMP-2 on the injured spinal cord.
PURPOSE: The purpose of this study was to evaluate the extent of bone morphogenetic protein (BMP)-specific intrathecal signaling after application to the spine at various time points after a spinal cord injury (SCI).
STUDY DESIGN: This is an in vivo rat study using a combination of the dorsal hemisection SCI and the posterolateral arthrodesis animal models.
METHODS: Sixty-five female Sprague-Dawley rats underwent either a T9-T10 dorsal hemisection SCI (n=52) or laminectomy only (n=13). Spinal cord injury animals were further subdivided into four follow-up groups (n=13/group): 30 minutes, 24 hours, 7 days, and 21 days, at which time one of two secondary surgeries were performed: Eight rats per time point received either 43 mu g of rhBMP-2 per side or sterile water control over T9-T11 on absorbable collagen sponges (ACSs). Animals were perfused after 24 hours, and spinal cords were immunohistochemically analyzed. Sections of the lesion were stained with BMP-specific pSmad 1, 5, 8 antibody and costained with cell-specific markers. pSmad-positive cells were then counted around the lesion. The remaining five rats (n=5/time point) had luciferase (blood spinal cord barrier [BSCB] permeability marker) injected through the jugular vein. Subsequently, spinal cords were collected and luciferase activity was quantified around the lesion and in the cervical samples (controls) using a luminometer.
RESULTS: After injury, a significant increase in the number of pSmad-positive cells was observed when rhBMP-2 was implanted at the 30-minute, 24-hour, and 7-day time points (p<.05). Costaining revealed BMP-specific signaling activation in neurons, glial cells, macrophages, and fibroblasts. Spinal cord permeability to luciferase was significantly increased at 30 minutes, 24 hours, and 7 days post lesion (p<.05). A significant linear regression was established between the extent of BSCB permeability and pSmad signaling (r(2) = 0.66, p=.000).
CONCLUSIONS: Our results indicate that rhBMP-2 use around a spinal cord lesion elicits a robust signaling response within the spinal cord parenchyma. All CNS cell types and the invading fibroblasts are activated to the extent dependent on the integrity of the meningeal and BSCB barriers. Therefore, in the presence of a SCI and/or dural tear, rhBMP-2 diffuses intrathecally and activates a signaling cascade in all major CNS cell types, which may increase glial scarring and impact neurologic recovery. (C) 2010 Elsevier Inc. All rights reserved.
C1 [Dmitriev, Anton E.; Farhang, Suzanne; Symes, Aviva J.] Uniformed Serv Univ Hlth Sci, Dept Pharmacol, Bethesda, MD 20814 USA.
[Dmitriev, Anton E.] Uniformed Serv Univ Hlth Sci, Program Neurosci, Bethesda, MD 20814 USA.
[Dmitriev, Anton E.; Lehman, Ronald A., Jr.] Walter Reed Army Med Ctr, Integrated Dept Orthopaed & Rehabil, Washington, DC 20307 USA.
[Ling, Geoffrey S. F.] Uniformed Serv Univ Hlth Sci, Dept Neurol, Bethesda, MD 20814 USA.
RP Symes, AJ (reprint author), Uniformed Serv Univ Hlth Sci, Dept Pharmacol, 4301 Jones Bridge Rd, Bethesda, MD 20814 USA.
EM asymes@usuhs.mil
RI Symes, Aviva/S-7471-2016
OI Symes, Aviva/0000-0003-2557-9939
NR 35
TC 18
Z9 18
U1 0
U2 2
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 1529-9430
J9 SPINE J
JI Spine Journal
PD JAN
PY 2010
VL 10
IS 1
BP 16
EP 25
DI 10.1016/j.spinee.2009.10.003
PG 10
WC Clinical Neurology; Orthopedics
SC Neurosciences & Neurology; Orthopedics
GA V22OM
UT WOS:000208284500003
PM 19914878
ER
PT J
AU Kyrolainen, H
Santtila, M
Nindl, BC
Vasankari, T
AF Kyrolainen, Heikki
Santtila, Matti
Nindl, Bradley C.
Vasankari, Tommi
TI Physical Fitness Profiles of Young Men Associations Between Physical
Fitness, Obesity and Health
SO SPORTS MEDICINE
LA English
DT Article
ID BODY-MASS INDEX; DISEASE RISK-FACTORS; C-REACTIVE PROTEIN;
CARDIORESPIRATORY FITNESS; CARDIOVASCULAR-DISEASE; LIFE-STYLE;
FOLLOW-UP; WAIST CIRCUMFERENCE; INSULIN SENSITIVITY; ARTERIAL STIFFNESS
AB Obesity in youth has increased during the last 10 years in Western countries Several studies have investigated physical activity and its effects on obesity and health, showing that regular physical activity combined with improved physical fitness reduces the risk of obesity and several metabolic problems (e g diabetes mellitus, metabolic syndrome, heart disease) and also improves overall health However, there is only limited scientific information available concerning the changes in the physical fitness profiles of youth It is obvious that only slight changes observed in endurance-type physical activity can also be observed in aerobic capacity Today and in the future, a major public health concern for teenage and young adults is the combination of increasing body fatness together with decreasing physical fitness In order to evaluate overall fitness level it is particularly essential to examine both aerobic and neuromuscular fitness Therefore, in clinical practice work and health behaviour education, a person's physical fitness should be measured more frequently with various measures Furthermore, population-based surveys should be combined with regular measurement of physical fitness to study sedentary lifestyles, particularly in young people This article presents a review of current physical fitness profiles of male children, adolescents and young adults, which hopefully initiates further studies in this relevant scientific field In addition, the importance of physical fitness level is evaluated in relation to obesity and health Collectively, studies examining physical fitness profiles of young men suggest a disturbing worldwide trend of decreased aerobic fitness and increased obesity Continued efforts to foster improved physical fitness and healthy lifestyles should be encouraged to combat these trends Such efforts should include frequent and objective assessment of physical fitness rather than solely relying on subjective assessment of physical activity
C1 [Kyrolainen, Heikki] Univ Jyvaskyla, Dept Biol Phys Act, Jyvaskyla 40014, Finland.
[Kyrolainen, Heikki] Natl Def Univ, Helsinki, Finland.
[Santtila, Matti] Personnel Div Def Command, Helsinki, Finland.
[Nindl, Bradley C.] USA, Environm Med Res Inst, Mil Performance Div, Natick, MA 01760 USA.
[Vasankari, Tommi] UKK Inst Hlth Promot Res, Tampere, Finland.
[Vasankari, Tommi] Natl Inst Hlth & Welf, Helsinki, Finland.
RP Kyrolainen, H (reprint author), Univ Jyvaskyla, Dept Biol Phys Act, POB 35, Jyvaskyla 40014, Finland.
NR 87
TC 12
Z9 13
U1 3
U2 11
PU ADIS INT LTD
PI AUCKLAND
PA 41 CENTORIAN DR, PRIVATE BAG 65901, MAIRANGI BAY, AUCKLAND 1311, NEW
ZEALAND
SN 0112-1642
J9 SPORTS MED
JI Sports Med.
PY 2010
VL 40
IS 11
BP 907
EP 920
PG 14
WC Sport Sciences
SC Sport Sciences
GA 681HI
UT WOS:000284301600002
PM 20942508
ER
PT S
AU Blair, J
Manne, F
Mihai, R
AF Blair, Jean
Manne, Fredrik
Mihai, Rodica
BE Dolev, S
Cobb, J
Fischer, M
Yung, M
TI Efficient Self-stabilizing Graph Searching in Tree Networks
SO STABILIZATION, SAFETY, AND SECURITY OF DISTRIBUTED SYSTEMS
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 12th International Symposium on Stabilization, Safety, and Security of
Distributed Systems
CY SEP 20-22, 2010
CL Columbia Univ, New York, NY
HO Columbia Univ
ID VERTEX SEPARATION; PATH-WIDTH; ALGORITHM; NUMBER
AB The graph search problem asks for a strategy that enables a minimum sized team of searchers to capture a "fugitive" while it evades and potentially multiplies through a network. It is motivated by the need to eliminate fast spreading viruses and other malicious software agents in computer networks.
The current work improves on previous results with a self-stabilizing algorithm that clears an n node tree network using only 1+log n searchers and O(n log n) moves after initialization. Since circle minus(log n) searchers are required to clear some tree networks even in the sequential case, this is the best that any self-stabilizing algorithm can do. The algorithm is based on a novel multi-layer traversal of the network.
C1 [Blair, Jean] US Mil Acad, Dept EE & CS, West Point, NY 10996 USA.
[Manne, Fredrik; Mihai, Rodica] Univ Bergen, Dept Informat, N-5020 Bergen, Norway.
RP Blair, J (reprint author), US Mil Acad, Dept EE & CS, West Point, NY 10996 USA.
EM Jean.Blair@usma.edu; fredrikm@ii.uib.no; rodica@ii.uib.no
NR 10
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-16022-6
J9 LECT NOTES COMPUT SC
PY 2010
VL 6366
BP 111
EP +
PG 2
WC Computer Science, Hardware & Architecture; Computer Science, Theory &
Methods
SC Computer Science
GA BUF43
UT WOS:000289123400011
ER
PT S
AU Bodenhamer, A
Pettijohn, B
Pezzaniti, JL
Edmondson, R
Vaden, J
Hyatt, B
Morris, J
Chenault, D
Tchon, J
Barnidge, T
Kaufman, S
Kingston, D
Newell, S
AF Bodenhamer, Andrew
Pettijohn, Bradley
Pezzaniti, J. Larry
Edmondson, Richard
Vaden, Justin
Hyatt, Brian
Morris, James
Chenault, David
Tchon, Joe
Barnidge, Tracy
Kaufman, Seth
Kingston, David
Newell, Scott
BE Woods, AJ
Holliman, NS
Dodgson, NA
TI 3D vision upgrade kit for the TALON robot system
SO STEREOSCOPIC DISPLAYS AND APPLICATIONS XXI
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Stereoscopic Displays and Applications XXI
CY JAN 18-20, 2010
CL San Jose, CA
SP SPIE, IS & T- The Soc Imaging Sci & Technol, IMAX Corp, NVIDIA Corp
DE TALON; Army; manipulation; tele-operation; SUGV
AB In September 2009 the Fort Leonard Wood Field Element of the US Army Research Laboratory - Human Research and Engineering Directorate, in conjunction with Polaris Sensor Technologies and Concurrent Technologies Corporation, evaluated the objective performance benefits of Polaris' 3D vision upgrade kit for the TALON small unmanned ground vehicle (SUGV). This upgrade kit is a field-upgradable set of two stereo-cameras and a flat panel display, using only standard hardware, data and electrical connections existing on the TALON robot. Using both the 3D vision system and a standard 2D camera and display, ten active-duty Army Soldiers completed seven scenarios designed to be representative of missions performed by military SUGV operators. Mission time savings (6.5% to 32%) were found for six of the seven scenarios when using the 3D vision system. Operators were not only able to complete tasks quicker but, for six of seven scenarios, made fewer mistakes in their task execution. Subjective Soldier feedback was overwhelmingly in support of pursuing 3D vision systems, such as the one evaluated, for fielding to combat units.
C1 [Bodenhamer, Andrew; Pettijohn, Bradley] USA, Res Lab, Human Res & Engn Directorate, Ft Leonard Wood, MO 65473 USA.
RP Bodenhamer, A (reprint author), USA, Res Lab, Human Res & Engn Directorate, 320 Manscen Loop,Suite 115, Ft Leonard Wood, MO 65473 USA.
NR 7
TC 2
Z9 2
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-7917-4
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7524
AR 752405
DI 10.1117/12.840512
PG 9
WC Engineering, Biomedical; Optics
SC Engineering; Optics
GA BSL67
UT WOS:000284868500005
ER
PT B
AU Herrera, RA
AF Herrera, Ricardo A.
BE Stoker, D
Hagan, KJ
McMaster, MT
TI The King's Friends Loyalists in British strategy
SO STRATEGY IN THE AMERICAN WAR OF INDEPENDENCE
SE Cass Military Studies
LA English
DT Article; Book Chapter
C1 [Herrera, Ricardo A.] USA, Combined Arms Ctr, Combat Studies Inst, Staff Ride Team, Ft Leavenworth, KS USA.
RP Herrera, RA (reprint author), USA, Combined Arms Ctr, Combat Studies Inst, Staff Ride Team, Ft Leavenworth, KS USA.
NR 43
TC 0
Z9 0
U1 0
U2 0
PU ROUTLEDGE
PI NEW YORK
PA 29 W 35TH ST, NEW YORK, NY 10001 USA
BN 978-0-203-01970-2
J9 CASS MIL STUD
PY 2010
BP 100
EP 119
PG 20
WC History
SC History
GA BMV23
UT WOS:000273642100007
ER
PT S
AU Blair, J
Manne, F
AF Blair, Jean
Manne, Fredrik
BE Kutten, S
Zerovnik, J
TI An Efficient Self-stabilizing Distance-2 Coloring Algorithm
SO STRUCTURAL INFORMATION AND COMMUNICATION COMPLEXITY
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 16th International Colloquium on Structural Information and
Communication Complexity
CY MAY 25-27, 2009
CL Piran, SLOVENIA
ID PLANAR GRAPHS
AB We present a self-stabilizing algorithm for the distance-2 coloring problem that uses a constant number of variables on each node and that stabilizes in O(Delta(2)m) moves using at most Delta(2) + 1 colors, where Delta is the maximum degree in the graph and in is the number of edges in the graph. The analysis holds true both for the sequential and the distributed adversarial daemon model. This should be compared with the previous best self-stabilizing algorithm for this problem which stabilizes in O(nm) moves under the sequential adversarial daemon and in O(n(3)m) time steps for the distributed adversarial daemon and which uses O(delta(i)) variables on each node i(10) where delta(i) is the degree of node i.
C1 [Blair, Jean] US Mil Acad, Dept EE & CS, West Point, NY 10996 USA.
[Manne, Fredrik] Univ Bergen, Dept Informat, N-5020 Bergen, Norway.
RP Blair, J (reprint author), US Mil Acad, Dept EE & CS, West Point, NY 10996 USA.
EM Jean.Blair@usma.edu; fredrikm@ii.uib.no
NR 15
TC 1
Z9 1
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-11475-5
J9 LECT NOTES COMPUT SC
PY 2010
VL 5869
BP 237
EP +
PG 2
WC Computer Science, Information Systems; Computer Science, Theory &
Methods
SC Computer Science
GA BPV59
UT WOS:000280108000018
ER
PT S
AU Hampton, RD
Li, TH
Byers, LK
AF Hampton, R. D.
Li, T. H.
Byers, L. K.
BE Jones, N
Brebbia, CA
Mander, U
TI Scaling of the modal response of a simply-supported rectangular plate
SO STRUCTURES UNDER SHOCK AND IMPACT XI
SE WIT Transactions on the Built Environment
LA English
DT Proceedings Paper
CT 11th International Conference on Structures Under Shock and Impact
CY JUL, 2010
CL Tallinn, ESTONIA
DE shock response; rectangular plates; modal analysis; model scaling
AB Actual military transports (such as ground vehicles or ships) are often not acceptable for shock-response testing, for such reasons as cost, vehicle availability, personnel availability, or time. If testing can be conducted on scaled-down models, whether of the actual transports or of critical subsections, the results might be usable to approximate the shock response of the full-scale hardware, provided that appropriate scaling relationships can be developed. Since many military vehicles and vessels have large structural portions consisting of homogeneous flat plates, these elements serve as a logical starting point for shock-response scaling efforts. This paper develops scaling relationships for thin rectangular plates in simple support, subject to transverse point-shock loads, under the assumptions of linearity, homogeneity, and geometric similarity of the plate faces. The plates are also assumed to have the same respective modal damping ratios, for corresponding modes. It is found that simple scaling factors exist, between corresponding modal frequencies, and between corresponding damped modeshapes. Further, via suitable discretization, these factors can be used to provide simple scaling relationships between the shock response of points on a scaled-down plate and that of corresponding (scaled) points on the scaled-up plate.
C1 [Hampton, R. D.; Byers, L. K.] US Mil Acad, Civil & Mech Engn Dept, West Point, NY USA.
RP Hampton, RD (reprint author), US Mil Acad, Civil & Mech Engn Dept, West Point, NY USA.
NR 5
TC 0
Z9 0
U1 0
U2 1
PU WIT PRESS/COMPUTATIONAL MECHANICS PUBLICATIONS
PI SOUTHAMPTON
PA ASHURST LODGE, ASHURST, SOUTHAMPTON SO40 7AA, ENGLAND
SN 1746-4498
BN 978-1-84564-466-6
J9 WIT TRANS BUILT ENV
PY 2010
VL 113
BP 297
EP 311
DI 10.2495/SU100261
PG 15
WC Engineering, Mechanical; Mathematics, Applied; Materials Science,
Characterization & Testing
SC Engineering; Mathematics; Materials Science
GA BUF41
UT WOS:000289122200026
ER
PT J
AU Harris, JL
AF Harris, Jef L.
TI Disturbed: Terrorist Behavioral Profiles
SO STUDIES IN CONFLICT & TERRORISM
LA English
DT Book Review
C1 [Harris, Jef L.] USA, Support Command CBRNE 20, Aberdeen Proving Ground, MD USA.
RP Harris, JL (reprint author), USA, Support Command CBRNE 20, Aberdeen Proving Ground, MD USA.
NR 2
TC 0
Z9 0
U1 0
U2 1
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1057-610X
J9 STUD CONFL TERROR
JI Stud. Confl. Terror.
PY 2010
VL 33
IS 5
BP 464
EP 465
DI 10.1080/10576101003691572
PG 2
WC International Relations; Political Science
SC International Relations; Government & Law
GA 594WS
UT WOS:000277571000005
ER
PT S
AU Clements, J
Robinson, J
Robinson, RM
AF Clements, Jim
Robinson, Joe
Robinson, Richard M.
BE Buford Jr, JA
Murrer Jr, RL
TI Non-destructive Missile Seeker Flight Testing: HWIL in the Sky
SO TECHNOLOGIES FOR SYNTHETIC ENVIRONMENTS: HARDWARE-IN-THE-LOOP TESTING XV
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Technologies for Synthetic Environments -
Hardware-in-the-Loop Testing XV
CY APR 07-08, 2010
CL Orlando, FL
SP SPIE
DE flight testing; HWIL; missiles; captive carry; airframe transfer
function; seeker testing
AB Surface to air missile development programs typically utilize hardware-in-the-loop (HWIL) simulations when available to provide a non-destructive high volume test environment for what are typically very expensive guidance sections. The HWIL, while invaluable, hasn't been able to obviate the need for missile flight tests. Because of the great expense of these missiles the designers are only allowed to perform a fraction of the desired tests. Missile Airframe Simulation Testbed (MAST) is a program conceived by US Army Aviation and Missile Research Development and Engineering Center (AMRDEC) that blends the non-destructive nature of HWIL with the confidence gained from flight tests to expand the knowledge gained while reducing the development schedule of new missile programs.
C1 [Clements, Jim] USA, Army Aviat & Missile Res Dev & Engn Ctr, Redstone Arsenal, AL USA.
RP Clements, J (reprint author), USA, Army Aviat & Missile Res Dev & Engn Ctr, Redstone Arsenal, AL USA.
EM jim.clements@us.army.mil
NR 0
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8127-6
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7663
AR 76630E
DI 10.1117/12.851870
PG 8
WC Computer Science, Hardware & Architecture; Optics
SC Computer Science; Optics
GA BSP41
UT WOS:000285288600013
ER
PT S
AU Curry, DM
Ricks, G
Thomas, TL
AF Curry, David M.
Ricks, Gayle
Thomas, Tony L.
BE Buford Jr, JA
Murrer Jr, RL
TI The Synergistic Roles of Test and Simulation In the Life Cycle of the
Army TACMS Missile System
SO TECHNOLOGIES FOR SYNTHETIC ENVIRONMENTS: HARDWARE-IN-THE-LOOP TESTING XV
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Technologies for Synthetic Environments -
Hardware-in-the-Loop Testing XV
CY APR 07-08, 2010
CL Orlando, FL
SP SPIE
DE Hardware-in-the-loop-simulation; inertially guided missile; validation;
verification; accreditation
AB The Army Tactical Missile System (ATACMS) has been fielded with the US Army for almost 20 years as a deep strike precision weapon, capable of engaging time critical targets at high precision under all weather conditions. This paper will describe the use of the HWIL simulation in the design of the missile, validation of the simulation, the role of the simulation in the production and test process, how the simulation is used to support system shelf life and obsolescence issues and how the simulation is used to answer critical user questions on the performance of the system.
C1 [Curry, David M.] USA, RDECOM, Washington, DC 20310 USA.
RP Curry, DM (reprint author), USA, RDECOM, Washington, DC 20310 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8127-6
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7663
AR 76630F
DI 10.1117/12.851897
PG 13
WC Computer Science, Hardware & Architecture; Optics
SC Computer Science; Optics
GA BSP41
UT WOS:000285288600014
ER
PT S
AU Das, NC
Towner, F
AF Das, Naresh C.
Towner, Fred
BE Buford Jr, JA
Murrer Jr, RL
TI Two color IR LED array
SO TECHNOLOGIES FOR SYNTHETIC ENVIRONMENTS: HARDWARE-IN-THE-LOOP TESTING XV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Technologies for Synthetic Environments -
Hardware-in-the-Loop Testing XV
CY APR 07-08, 2010
CL Orlando, FL
SP SPIE
DE Surface emitting devices; IR scene projection; 2-D LED array
AB We report the IR electroluminescence in two wavelength bands, 3-4 micron (MWIR) and 8-9 micron (LWIR) regions. The epitaxial structure was grown on an n-type GaSb substrate with the MWIR quantum well (QW) region on top of LWIR QW region and a 0.5 mu m contact layer grown in between the two QW regions. We measured the light emission from the top surface of the device with different grating structures. We fabricated square mesas varying from 50 to 200 microns on a side. Both room temperature and cryogenic temperature results show emission in the wavelength regions as designed.
C1 [Das, Naresh C.] USA, Res Lab, Microphoton Branch, Adelphi, MD 20783 USA.
RP Das, NC (reprint author), USA, Res Lab, Microphoton Branch, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
NR 6
TC 2
Z9 2
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8127-6
J9 PROC SPIE
PY 2010
VL 7663
AR 766308
DI 10.1117/12.852343
PG 7
WC Computer Science, Hardware & Architecture; Optics
SC Computer Science; Optics
GA BSP41
UT WOS:000285288600008
ER
PT S
AU Kim, HJ
Moss, SG
AF Kim, Hajin J.
Moss, Stephen G.
BE Buford Jr, JA
Murrer Jr, RL
TI Common hardware-in-the-loop development
SO TECHNOLOGIES FOR SYNTHETIC ENVIRONMENTS: HARDWARE-IN-THE-LOOP TESTING XV
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Technologies for Synthetic Environments -
Hardware-in-the-Loop Testing XV
CY APR 07-08, 2010
CL Orlando, FL
SP SPIE
DE hardware-in-the-loop; network; architecture; latency; FPGA; modular;
interface
AB An approach to streamline the Hardware-In-the-Loop (HWIL) simulation development process is under evaluation. This Common HWIL technique will attempt to provide a more flexible, scalable system. The overall goal of the Common HWIL system will be to reduce cost by minimizing redundant development, operational labor and equipment expense. This paper will present current results and future plans of the development.
C1 [Kim, Hajin J.] USA, RDECOM, Aviat & Missile RDEC, RDMR SSE H, Redstone Arsenal, AL 35898 USA.
RP Kim, HJ (reprint author), USA, RDECOM, Aviat & Missile RDEC, RDMR SSE H, Bldg 5400, Redstone Arsenal, AL 35898 USA.
EM hajin.j.kim@us.army.mil
NR 2
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8127-6
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7663
AR 76630G
DI 10.1117/12.852449
PG 11
WC Computer Science, Hardware & Architecture; Optics
SC Computer Science; Optics
GA BSP41
UT WOS:000285288600015
ER
PT S
AU Morris, JW
Ballard, GH
Trimble, DE
Bunfield, DH
Mayhall, AJ
AF Morris, Joseph W.
Ballard, Gary H.
Trimble, Darian E.
Bunfield, Dennis H.
Mayhall, Anthony J.
BE Buford Jr, JA
Murrer Jr, RL
TI A Unification Framework for Best-of-Breed Real-Time Scene Generation
SO TECHNOLOGIES FOR SYNTHETIC ENVIRONMENTS: HARDWARE-IN-THE-LOOP TESTING XV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Technologies for Synthetic Environments -
Hardware-in-the-Loop Testing XV
CY APR 07-08, 2010
CL Orlando, FL
SP SPIE
DE Real-time Scene Generation; Real-Time Scene Compositing; InfiniBand; PCI
Express 2.0; Joint Signature Image Generator (JSIG); DMA / RDMA; CUDA /
OpenCL; Message Passing Interface (MPI); Neutral Messaging Language
(NML) / Real-time Control Systems (RCS)
AB AMRDEC sought out an improved framework for real-time hardware-in-the-loop (HWIL) scene generation to provide the flexibility needed to adapt to rapidly changing hardware advancements and provide the ability to more seamlessly integrate external third party codes for Best-of-Breed real-time scene generation. As such, AMRDEC has developed Continuum, a new software architecture foundation to allow for the integration of these codes into a HWIL lab facility while enhancing existing AMRDEC HWIL scene generation codes such as the Joint Signature Image Generator (JSIG). This new real-time framework is a minimalistic modular approach based on the National Institute of Standards (NIST) Neutral Messaging Language (NML) that provides the basis for common HWIL scene generation. High speed interconnects and protocols were examined to support distributed scene generation whereby the scene graph, associated phenomenology, and resulting scene can be designed around the data rather than a framework, and the scene elements can be dynamically distributed across multiple high performance computing assets. Because of this open architecture approach, the framework facilitates scaling from a single GPU "traditional" PC scene generation system to a multi-node distributed system requiring load distribution and scene compositing across multiple high performance computing platforms. This takes advantage of the latest advancements in GPU hardware, such as NVIDIA's Tesla and Fermi architectures, providing an increased benefit in both fidelity and performance of the associated scene's phenomenology. Other features of the Continuum easily extend the use of this framework to include visualization, diagnostic, analysis, configuration, and other HWIL and all digital simulation tools.
C1 [Morris, Joseph W.; Ballard, Gary H.] USA, Aviat & Missile Res Dev & Engn Ctr AMRDEC, Redstone Arsenal, AL 35808 USA.
RP Morris, JW (reprint author), USA, Aviat & Missile Res Dev & Engn Ctr AMRDEC, Redstone Arsenal, AL 35808 USA.
NR 6
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8127-6
J9 PROC SPIE
PY 2010
VL 7663
AR 76630R
DI 10.1117/12.851924
PG 12
WC Computer Science, Hardware & Architecture; Optics
SC Computer Science; Optics
GA BSP41
UT WOS:000285288600026
ER
PT S
AU Olson, RF
Reynolds, TM
Satterfield, HD
AF Olson, Richard F.
Reynolds, Terry M.
Satterfield, H. Dewayne
BE Buford Jr, JA
Murrer Jr, RL
TI FAST METHODS FOR COMPUTING SCENE RAW SIGNALS IN MILLIMETER WAVE SENSOR
SIMULATIONS
SO TECHNOLOGIES FOR SYNTHETIC ENVIRONMENTS: HARDWARE-IN-THE-LOOP TESTING XV
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Technologies for Synthetic Environments -
Hardware-in-the-Loop Testing XV
CY APR 07-08, 2010
CL Orlando, FL
SP SPIE
DE Radar Simulation; Doppler Beam Sharpening; Spotlight SAR; Point
Scatterer Modeling; Radar Scene Generation; Hardware-in-the-Loop; Vector
Signal Processing
AB Modern millimeter wave (mmW) radar sensor systems employ wideband transmit waveforms and efficient receiver signal processing methods for resolving accurate measurements of targets embedded in complex backgrounds. Fast Fourier Transform processing of pulse return signal samples is used to resolve range and Doppler locations, and amplitudes of scattered RF energy. Angle glint from RF scattering centers can be measured by performing monopulse arithmetic on signals resolved in both delta and sum antenna channels. Environment simulations for these sensors - including all-digital and hardware-in-the-loop (HWIL) scene generators - require fast, efficient methods for computing radar receiver input signals to support accurate simulations with acceptable execution time and computer cost. Although all-digital and HWIL simulations differ in their representations of the radar sensor (which is itself a simulation in the all-digital case), the signal computations for mmW scene modeling are closely related for both types. Engineers at the U. S. Army Aviation and Missile Research, Development and Engineering Center (AMRDEC) have developed various fast methods for computing mmW scene raw signals to support both HWIL scene projection and all-digital receiver model input signal synthesis. These methods range from high level methods of decomposing radar scenes for accurate application of spatially-dependent nonlinear scatterer phase history, to low-level methods of efficiently computing individual scatterer complex signals and single precision transcendental functions. The efficiencies of these computations are intimately tied to math and memory resources provided by computer architectures. The paper concludes with a summary of radar scene computing performance on available computer architectures, and an estimate of future growth potential for this computational performance.
C1 [Olson, Richard F.] USA, Syst Simulat & Dev Directorate, Aviat & Missile Res Dev & Engn Command, Redstone Arsenal, AL USA.
RP Olson, RF (reprint author), USA, Syst Simulat & Dev Directorate, Aviat & Missile Res Dev & Engn Command, Redstone Arsenal, AL USA.
NR 11
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8127-6
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7663
AR 76630L
DI 10.1117/12.853466
PG 10
WC Computer Science, Hardware & Architecture; Optics
SC Computer Science; Optics
GA BSP41
UT WOS:000285288600020
ER
PT J
AU Ackerman, MJ
Filart, R
Burgess, LP
Lee, I
Poropatich, RK
AF Ackerman, Michael J.
Filart, Rosemarie
Burgess, Lawrence P.
Lee, Insup
Poropatich, Ronald K.
TI Developing Next-Generation Telehealth Tools and Technologies: Patients,
Systems, and Data Perspectives
SO TELEMEDICINE JOURNAL AND E-HEALTH
LA English
DT Editorial Material
DE business administration/economics; telehealth tools; technology;
National Institutes of Health
ID CLINICAL-DECISION-SUPPORT
AB The major goals of telemedicine today are to develop next-generation telehealth tools and technologies to enhance healthcare delivery to medically underserved populations using telecommunication technology, to increase access to medical specialty services while decreasing healthcare costs, and to provide training of healthcare providers, clinical trainees, and students in health-related fields. Key drivers for these tools and technologies are the need and interest to collaborate among telehealth stakeholders, including patients, patient communities, research funders, researchers, healthcare services providers, professional societies, industry, healthcare management/economists, and healthcare policy makers. In the development, marketing, adoption, and implementation of these tools and technologies, communication, training, cultural sensitivity, and end-user customization are critical pieces to the process. Next-generation tools and technologies are vehicles toward personalized medicine, extending the telemedicine model to include cell phones and Internet-based telecommunications tools for remote and home health management with video assessment, remote bedside monitoring, and patient-specific care tools with event logs, patient electronic profile, and physician note-writing capability. Telehealth is ultimately a system of systems in scale and complexity. To cover the full spectrum of dynamic and evolving needs of end-users, we must appreciate system complexity as telehealth moves toward increasing functionality, integration, inter-operability, outreach, and quality of service. Toward that end, our group addressed three overarching questions: (1) What are the high-impact topics? (2) What are the barriers to progress? and (3) What roles can the National Institutes of Health and its various institutes and centers play in fostering the future development of telehealth?
C1 [Ackerman, Michael J.] NIH, Natl Lib Med, Off High Performance Comp & Commun, Bethesda, MD 20894 USA.
[Filart, Rosemarie] NIH, Natl Ctr Res Resources, Bethesda, MD 20894 USA.
[Burgess, Lawrence P.] Univ Hawaii, John A Burns Sch Med, Telehlth Res Inst, Honolulu, HI 96822 USA.
[Lee, Insup] Univ Penn, Dept Comp & Informat Sci, Philadelphia, PA 19104 USA.
[Poropatich, Ronald K.] USA, Med Res & Mat Command, Telemed & Adv Technol Res Ctr, Ft Detrick, MD USA.
RP Ackerman, MJ (reprint author), NIH, Natl Lib Med, Off High Performance Comp & Commun, 8600 Rockville Pike, Bethesda, MD 20894 USA.
EM mackerman@mail.nih.gov
NR 6
TC 38
Z9 39
U1 2
U2 12
PU MARY ANN LIEBERT INC
PI NEW ROCHELLE
PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA
SN 1530-5627
J9 TELEMED J E-HEALTH
JI Telemed. J. e-Health
PD JAN-FEB
PY 2010
VL 16
IS 1
BP 93
EP 95
DI 10.1089/tmj.2009.0153
PG 3
WC Health Care Sciences & Services
SC Health Care Sciences & Services
GA 551BV
UT WOS:000274181600015
PM 20043711
ER
PT S
AU Woolard, D
Recine, G
Bykhovski, A
Zhang, WD
AF Woolard, Dwight
Recine, Greg
Bykhovski, Alexei
Zhang, Weidong
BE Lampin, JF
Decoster, DJ
Razeghi, M
TI Molecular-level engineering of THz/IR-sensitive materials for future
biological sensing application
SO TERAHERTZ EMITTERS, RECEIVERS, AND APPLICATIONS
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Terahertz Emitters, Receivers, and Applications
CY AUG 01-03, 2010
CL San Diego, CA
SP SPIE
DE molecular; terahertz; infrared; sensing; engineered materials;
biological sensing
AB While the unique spectral information associated with chemical and biological molecules within the terahertz frequency regime (similar to 3.0-3.0 millimeters) motivates its use for practical sensing applications, limiting factors at the macroscale (weak spectral absorption, broad line widths and masking geometrical effects introduced by the samples) provides motivation for man-engineered sensing materials that allow for the transduction of the spectral information about target molecules from the nanoscale. This brief letter will overview work being performed by our research group to define molecular-level functionality that will be useful for realizing "THz/IR-sensitive" materials. Here the goal is to define switchable molecular components that when incorporated into larger DNA-based nanoscaffolds lead to THz and/or IR regime electronic and/or photonic material properties that are dictated in a predictable manner by novel functionality paradigms. In particular, theoretical modeling and design studies are being performed to engineer organic and biological switches that can be incorporated into DNA-based architectures that enable the precise extraction of nanoscale information (e. g., composition, dynamics, conformation) through electronic/photonic transformations to the macroscale. Hence, these studies seek to define new spectral-based sensing modalities useful for characterizing bio-molecules
C1 [Woolard, Dwight] USA, Res Off, Durham, NC 27709 USA.
RP Woolard, D (reprint author), USA, Res Off, Durham, NC 27709 USA.
EM dwight.woolard@us.army.mil
NR 4
TC 1
Z9 1
U1 1
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8259-4
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7763
AR 77630D
DI 10.1117/12.865580
PG 5
WC Optics; Physics, Applied
SC Optics; Physics
GA BSU90
UT WOS:000285842400011
ER
PT S
AU Dandekar, DP
AF Dandekar, Dattatraya P.
BE Chandra, T
Wanderka, N
Reimers, W
Ionescu, M
TI Shear Strength of Titanium Diboride Under Shock Wave And Static
Compressions
SO THERMEC 2009, PTS 1-4
SE Materials Science Forum
LA English
DT Proceedings Paper
CT 6th International Conference on Processing and Manufacturing of Advanced
Materials
CY AUG 25-29, 2009
CL Berlin, GERMANY
SP Minerals, Met & Mat Soc
DE Shear strength; shock compression; static compression; equation of
state; plasticity; titanium diboride
ID YIELD STRENGTH; DYNAMIC YIELD
AB The mechanical behavior of ceramics under high pressures and temperatures is a subject of considerable interest. Since high pressures can be generated under static or dynamic conditions, it is necessary to measure mechanical properties of the materials under both. In the present work, compression and shear strength of titanium diboride measured under plane shock wave compression is revealingly compared with the recent measurement of compression and shear strength of titanium diboride obtained under static high pressures.
C1 USA, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
RP Dandekar, DP (reprint author), USA, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
NR 27
TC 2
Z9 2
U1 1
U2 3
PU TRANS TECH PUBLICATIONS LTD
PI STAFA-ZURICH
PA LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND
SN 0255-5476
J9 MATER SCI FORUM
PY 2010
VL 638-642
BP 1023
EP 1028
DI 10.4028/www.scientific.net/MSF.638-642.1023
PN 1-4
PG 6
WC Materials Science, Multidisciplinary; Materials Science, Biomaterials;
Materials Science, Coatings & Films; Materials Science, Composites
SC Materials Science
GA BQH93
UT WOS:000281043800167
ER
PT J
AU Langston, T
AF Langston, Tye
TI Photoluminescent Detection of Dissolved Underwater Trace Explosives
SO THESCIENTIFICWORLDJOURNAL
LA English
DT Article
DE explosives; explosive detection; nitroglycerin; europium;
thenoyltrifluoroacetone; 1,10-phenanthroline; lanthanide; coastal
security
ID FIBER-OPTIC BIOSENSOR; WATER; TNT; CHROMATOGRAPHY; FLUORESCENCE
AB A portable, rapid, and economical method for in situ trace explosive detection in aqueous solutions was demonstrated using photoluminescence. Using europium/thenoyltrifluoroacetone as the reagent, dissolved nitroglycerin was fluorescently tagged and detected in seawater solutions without sample preparation, drying, or preconcentration. The chemical method was developed in a laboratory setting and demonstrated in a flow-through configuration using lightweight, inexpensive, commercial components by directly injecting the reagents into a continually flowing seawater stream using a small amount of organic solvent (approximately 8% of the total solution). Europium's vulnerability to vibrational fluorescence quenching by water provided the mode of detection. Without nitroglycerin in the seawater solution, the reagent's fluorescence was quenched, but when dissolved nitroglycerin was present, it displaced the water molecules from the europium/thenoyltrifluoroacetone compound and restored fluorescence. This effort focused on developing a seawater sensor, but performance comparisons were made to freshwater. The method was found to perform better in freshwater and it was shown that certain seawater constituents (such as calcium) have an adverse impact. However, the concentrations of these constituents are not expected to vary significantly from the natural seawater used herein.
C1 [Langston, Tye] Florida Atlantic Univ, Dept Ocean Engn, Boca Raton, FL 33431 USA.
RP Langston, T (reprint author), USA, Ctr Surface Warfare, Sci & Technol Dept, Panama City, FL USA.
EM tye.langston@navy.mil
FU U.S. Office of Naval Research, Center for Coastline Security Technology
[N00014-05-C-0031]
FX The author would like to express sincere gratitude to Prof. Richard
Granata for his advice and support. The support provided by the U.S.
Office of Naval Research, Center for Coastline Security Technology,
contract/PR No. N00014-05-C-0031 is also greatly appreciated.
NR 38
TC 1
Z9 1
U1 2
U2 18
PU THESCIENTIFICWORLD LTD
PI NEWBURY
PA 29-34, VENTURE WEST, NEW GREENHAM PARK, NEWBURY, BERKSHIRE RG19 6HX,
ENGLAND
SN 1537-744X
J9 THESCIENTIFICWORLDJO
JI TheScientificWorldJOURNAL
PY 2010
VL 10
BP 546
EP 562
DI 10.1100/tsw.2010.41
PG 17
WC Environmental Sciences; Multidisciplinary Sciences
SC Environmental Sciences & Ecology; Science & Technology - Other Topics
GA 578EZ
UT WOS:000276277600005
PM 20364240
ER
PT S
AU Milhorn, D
Hamilton, T
Nelson, M
McNutt, P
AF Milhorn, Denise
Hamilton, Tracey
Nelson, Marian
McNutt, Patrick
BE Garaci, E
Goldstein, AL
TI Progression of ocular sulfur mustard injury: development of a model
system
SO THYMOSINS IN HEALTH AND DISEASE
SE Annals of the New York Academy of Sciences
LA English
DT Article; Proceedings Paper
CT 2nd International Symposium on Thymosins in Health and Disease
CY SEP 30-OCT 02, 2009
CL Catania, ITALY
DE thymosin-beta 4; sulfur mustard; rabbit ocular injury
ID IN-VIVO; ALKALI INJURY; THYMOSIN-BETA-4; GAS
AB Exposure of tissues to sulfur mustard (SM) results in the formation of protein and nucleotide adducts that disrupt cellular metabolism and cause cell death. Subsequent pathologies involve a significant proinflammatory response, disrupted healing, and long-term defects in tissue architecture. Following ocular exposure, acute corneal sequelae include epithelial erosions, necrosis, and corneal inflammation. Longer term, a progressive injury becomes distributed throughout the anterior chamber, which ultimately causes a profound remodeling of corneal tissues. In many cases, debilitating and vision-threatening injuries reoccur months to years after the initial exposure. Preliminary data in humans suffering from chronic epithelial lesions suggest that thymosin beta 4 (T beta 4) may be a viable candidate to mitigate acute or long-term ocular SM injury. To evaluate therapeutic candidates, we have developed a rabbit ocular exposure model system. In this paper, we report molecular, histological, ultrastructural, and clinical consequences of rabbit ocular SM injury, which can be used to assess T beta 4 efficacy, including timepoints at which T beta 4 will be assessed for therapeutic utility.
C1 [Hamilton, Tracey; Nelson, Marian; McNutt, Patrick] USA, Div Res, Med Res Inst Chem Def, Aberdeen Proving Ground, MD 21010 USA.
[Milhorn, Denise] USA, Med Res & Mat Command, Ft Detrick, MD USA.
RP McNutt, P (reprint author), USA, Div Res, Med Res Inst Chem Def, 3100 Ricketts Point Rd, Aberdeen Proving Ground, MD 21010 USA.
EM patrick.mcnutt@us.army.mil
OI McNutt, Patrick/0000-0002-5703-4565
NR 26
TC 14
Z9 15
U1 0
U2 2
PU BLACKWELL PUBLISHING
PI OXFORD
PA 9600 GARSINGTON RD, OXFORD OX4 2DQ, OXEN, ENGLAND
SN 0077-8923
BN 978-1-57331-801-3
J9 ANN NY ACAD SCI
JI Ann.NY Acad.Sci.
PY 2010
VL 1194
BP 72
EP 80
DI 10.1111/j.1749-6632.2010.05491.x
PG 9
WC Biochemistry & Molecular Biology; Immunology; Multidisciplinary Sciences
SC Biochemistry & Molecular Biology; Immunology; Science & Technology -
Other Topics
GA BRJ57
UT WOS:000282838000010
PM 20536452
ER
PT B
AU Chinella, JF
AF Chinella, John F.
GP TMS
TI MODELING PROCESSING AND PERFORMANCE OF AN Al-Zn-Mg ALLOY
SO TMS 2010 139TH ANNUAL MEETING & EXHIBITION - SUPPLEMENTAL PROCEEDINGS,
VOL 1: MATERIALS PROCESSING AND PROPERTIES
LA English
DT Proceedings Paper
CT TMS 2010 Annual Meeting Supplemental Proceedings on Materials Processing
and Properties
CY FEB 14-18, 2010
CL Seattle, WA
DE aluminum; armor; modeling; phase transformation; thermodynamics; 7020
AB This study evaluates Al-4.5Zn-1.2Mg alloy 7020. Microstructures of alloys 7039 and 7020 are shown. Computational thermodynamic modeling predicts: phase structures, equilibrium states, process temperatures, and manufacturing advantages. An artificial age study was conducted to overage the initial 1651 condition and to determine the hardness levels in response to holding periods of time-temperature. Aging parameters can help establish alloy 7020 processing factors to optimize and meet requirements for resistance to penetration by projectiles, or fragments, and fracture from stress corrosion cracking (SCC) or blast. The 7020-1651 ballistic test results versus armor piercing projectiles reveal protection levels superior to 5083-H131 aluminum and equivalent to Class 1, penetration-resistant rolled homogeneous armor (RHA). Results suggest a 7020-T7 material may be optimized to resist blast fracture and SCC.
C1 USA, Res Lab, RDRL WMM D, Aberdeen Proving Ground, MD 21005 USA.
RP Chinella, JF (reprint author), USA, Res Lab, RDRL WMM D, Aberdeen Proving Ground, MD 21005 USA.
NR 35
TC 0
Z9 0
U1 2
U2 5
PU MINERALS, METALS & MATERIALS SOC
PI WARRENDALE
PA 184 THORN HILL RD, WARRENDALE, PA 15086-7514 USA
BN 978-0-87339-751-3
PY 2010
BP 41
EP 47
PG 7
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA BUA95
UT WOS:000288693100005
ER
PT J
AU Dham, M
Rushing, TS
Helferich, R
Marth, T
Sengupta, S
Revur, R
Weiss, CA
Cummins, TK
AF Dham, Mahir
Rushing, Todd S.
Helferich, Richard
Marth, Tim
Sengupta, Suvankar
Revur, Rao
Weiss, Charles A.
Cummins, Toney K.
TI Enhancement of Reactive Powder Concrete via Nanocement Integration
SO TRANSPORTATION RESEARCH RECORD
LA English
DT Article
ID CEMENT
AB Reactive powder concretes (RPCs) were developed through careful design and control of the composite microstructure. Enhanced properties were achieved through optimization of the gradation and arrangement of the inert particles, as well as through designing the reactive components (e.g., coarse-ground oil-well cement and silica fume) to govern the hydration product morphology. Recently, a process has been developed for synthesis of cement with nanometer-scale particle sizes with tailorable chemical compositions. The addition of nanocements to RPCs is unique because it influences the early hydration reaction of the cement in RPC for nano-sized hydration products. The replacement of a small fraction of the conventional cement with these nano-sized reactive particles reduces the induction period in cement hydration and initiates a faster conversion to the hydration products. Integration of nanocements may also lead to a denser product microstructure with higher ultimate compressive and tensile strengths. Potential also exists to reduce the permeability of the RPC and to strengthen the interfacial transition zones within the material. With such improvements, nanocement can serve as a means to optimize RPC systems for enhanced properties and may further enhance the durability of RPC.
C1 [Rushing, Todd S.; Weiss, Charles A.; Cummins, Toney K.] USA, Engineer Res & Dev Ctr, Vicksburg, MS 39180 USA.
[Dham, Mahir; Helferich, Richard; Marth, Tim; Sengupta, Suvankar; Revur, Rao] NanoDynamics Inc, Columbus, OH 43212 USA.
RP Rushing, TS (reprint author), USA, Engineer Res & Dev Ctr, Bldg 6000,3909 Halls Ferry Rd, Vicksburg, MS 39180 USA.
EM todd.s.rushing@usace.army.mil
NR 10
TC 3
Z9 3
U1 2
U2 12
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0361-1981
J9 TRANSP RES RECORD
JI Transp. Res. Record
PY 2010
IS 2142
BP 18
EP 24
DI 10.3141/2142-03
PG 7
WC Engineering, Civil; Transportation; Transportation Science & Technology
SC Engineering; Transportation
GA 596GP
UT WOS:000277673400004
ER
PT J
AU Priddy, LP
Jersey, SR
Reese, CM
AF Priddy, Lucy P.
Jersey, Sarah R.
Reese, Cody M.
TI Full-Scale Field Testing for Injected Foam Stabilization of Portland
Cement Concrete Repairs
SO TRANSPORTATION RESEARCH RECORD
LA English
DT Article
AB A series of foam-injected repairs was performed on a portland cement concrete (PCC) test section at the U.S. Army Engineer Research and Development Center. Repairs consisted of uncompacted backfill overlaid by a 9-in, rapid-setting cementitious cap. A series of injection tubes was inserted through the cap into the uncompacted debris backfill, and a two-component rigid polyurethane foam was injected into this backfill. The test matrix compared the performance of three different repairs using various volumes of injected foam. A fourth repair was constructed without injected foam as a control item. Three hours after cap construction, the repairs underwent simulated aircraft traffic with an F-15E load cart. The performance of the four repairs was measured by passes to failure. The results of traffic testing were used to evaluate foam-injection technology for rapid repair of PCC pavements. The performances of foam-injected repairs were also compared with poured foam and traditional full-depth backfill repairs, each capped with rapid-setting materials. Comparisons were made about pavement performance, costs, and total duration required for installing the repair. Results showed that injection of excessive foam was detrimental to the repair surface, because it induced cracking before traffic application, and could lead to premature development of foreign object damage. However, repairs using moderate amounts of foam and pure backfill sustained the required traffic levels, defined by the research sponsor, of 200 passes within 4 h of initiating the pavement repair. For cost and repair duration, those repairs that did not include foam were more effective.
C1 [Priddy, Lucy P.; Jersey, Sarah R.] USA, Engineer Res & Dev Ctr, Vicksburg, MS 39180 USA.
[Reese, Cody M.] USN, Facil Engn Command, Engn Serv Ctr, Port Hueneme, CA 93043 USA.
RP Priddy, LP (reprint author), USA, Engineer Res & Dev Ctr, 3909 Halls Ferry Rd, Vicksburg, MS 39180 USA.
EM lucy.p.priddy@usace.army.mil
FU Headquarters, Air Combat Command and Headquarters, Department of the
Navy by the Office of Naval Research, Rapid Technology Transition Office
FX The tests described and the resulting data presented in this paper were
obtained from research sponsored by Headquarters, Air Combat Command and
Headquarters, Department of the Navy by the Office of Naval Research,
Rapid Technology Transition Office. This work was conducted at the U.S.
Army Engineering Research and Development Center, Waterways Experiment
Station. Permission was granted by the laboratory director to publish
this information.
NR 10
TC 7
Z9 7
U1 0
U2 5
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0361-1981
J9 TRANSP RES RECORD
JI Transp. Res. Record
PY 2010
IS 2155
BP 24
EP 33
DI 10.3141/2155-03
PG 10
WC Engineering, Civil; Transportation; Transportation Science & Technology
SC Engineering; Transportation
GA 691JB
UT WOS:000285075000003
ER
PT J
AU Peters, SJ
Rushing, TS
Landis, EN
Cummins, TK
AF Peters, Sarah J.
Rushing, Todd S.
Landis, Eric N.
Cummins, Toney K.
TI Nanocellulose and Microcellulose Fibers for Concrete
SO TRANSPORTATION RESEARCH RECORD
LA English
DT Article
ID REINFORCED CEMENT COMPOSITES; DURABILITY
AB A study was conducted in which a reactive powder concrete was reinforced with a combination of nanocellulose and microcellulose fibers to increase the toughness of an otherwise brittle material. These fibers could provide the benefit of other micro- and nanofiber reinforcement systems at a fraction of the cost. An empirical investigation into the effects of several different reinforcement schemes on processing parameters and mechanical properties of a reactive powder concrete mixture was conducted. In particular, notched-beam tests were performed under crack-mouth opening displacement control to measure fracture energy under stable crack-growth conditions. Preliminary results show that the addition of up to 3% micro- and nanofibers in combination increased the fracture energy by more than 50% relative to the unreinforced material, with little change in processing procedure. Splitting tensile tests were also performed for comparison with beam-bending tests. Current work focuses on applying high-resolution three-dimensional imaging techniques to better quantify the physical microstructures and the corresponding shifts in damage mechanisms that lead to higher toughness.
C1 [Rushing, Todd S.; Cummins, Toney K.] USA, Engineer Res & Dev Ctr, Vicksburg, MS 39180 USA.
[Peters, Sarah J.; Landis, Eric N.] Univ Maine, Orono, ME 04469 USA.
RP Rushing, TS (reprint author), USA, Engineer Res & Dev Ctr, 3909 Halls Ferry Rd, Vicksburg, MS 39180 USA.
EM Todd.S.Rushing@usace.army.mil
NR 8
TC 12
Z9 12
U1 3
U2 29
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0361-1981
J9 TRANSP RES RECORD
JI Transp. Res. Record
PY 2010
IS 2142
BP 25
EP 28
DI 10.3141/2142-04
PG 4
WC Engineering, Civil; Transportation; Transportation Science & Technology
SC Engineering; Transportation
GA 596GP
UT WOS:000277673400005
ER
PT J
AU Chandler, MQ
Peters, JF
Pelessone, D
AF Chandler, Mei Qiang
Peters, J. F.
Pelessone, D.
TI Modeling Nanoindentation of Calcium Silicate Hydrate
SO TRANSPORTATION RESEARCH RECORD
LA English
DT Article
ID C-S-H; DISCRETE-ELEMENT METHOD; CEMENT PASTE; COHESION; FORCES; CONCRETE
AB The discrete element method (DEM) was used to model nanoindentation of calcium silicate hydrate (C-S-H). The interparticle forces consisted of the traditional friction and contact forces that operate in granular materials, with the addition of nanometer-scale forces between gels, including van der Waals and electric double-layer forces. The contact normal forces were based on Hertz contact law. The van der Weals attractive forces were calculated on the basis of Hamaker's equation. The electric double-layer forces, generated from the negative charges on the C-S-H gel surface and the ion species in the pore solution, were calculated by using Monte Carlo simulations. The particles are spherical with diameters of approximately 5 nm. Both elastic modulus and hardness, calculated from the DEM, were much smaller than the results from nanoindentation experiments. The effects of interparticle forces on the elastic modulus and hardness were studied to explore possible reasons for the differences. The simulations give insight into the morphology of C-S-H nanoparticles and the interparticle forces between C-S-H nanoparticles.
C1 [Chandler, Mei Qiang; Peters, J. F.] USA, Engineer Res & Dev Ctr, Vicksburg, MS 39180 USA.
[Pelessone, D.] Engn & Software Syst Solut Inc, San Diego, CA 92101 USA.
RP Chandler, MQ (reprint author), USA, Engineer Res & Dev Ctr, 3909 Halls Ferry Rd, Vicksburg, MS 39180 USA.
EM Mei.Q.Chandler@usace.army.mil
FU U.S. Army Engineer Research and Development Center
FX The authors thank the U.S. Army Engineer Research and Development Center
for funding this work.
NR 19
TC 3
Z9 3
U1 2
U2 10
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0361-1981
J9 TRANSP RES RECORD
JI Transp. Res. Record
PY 2010
IS 2142
BP 67
EP 74
DI 10.3141/2142-10
PG 8
WC Engineering, Civil; Transportation; Transportation Science & Technology
SC Engineering; Transportation
GA 596GP
UT WOS:000277673400011
ER
PT J
AU Chiarito, VP
Walker, RE
Minor, JK
Ray, JC
Coleman, TG
AF Chiarito, Vincent P.
Walker, Robert E.
Minor, Jared K.
Ray, James C.
Coleman, Thomas G.
TI Economical and Consistent Test Methodology for Energy-Absorbing
Materials Used for Mitigation of Explosive Effects on Structures
SO TRANSPORTATION RESEARCH RECORD
LA English
DT Article
AB This paper discusses the use of an economical ballistic pendulum device to study the effectiveness of energy-absorbing materials to mitigate explosive detonation effects. Besides closing a structure, engineers must develop innovative measures to mitigate the effects of the extreme blast environments expected from very close-in (near-contact) detonations against key structural components. Beyond conventional structural hardening, using energy-absorbing materials to protect structures from blast effects is an option considered but not fully understood. As new materials have evolved in recent years, interest has increased in their potential use as energy absorbers for near-contact blast mitigation. For these new materials, constitutive models are either nonexistent or not well developed for predicting high-pressure and high-strain rate responses. Experiments using the ballistic pendulum were conducted rapidly and with little logistical burden; for one series of tests, over 30 experiments were conducted in 1 week. This fundamental experimental setup produced a wealth of previously nonexistent data on a variety of energy-absorbing materials, such as an elastomer (rubberlike compound), dense foams, a dilatant compound, and liquids. The ballistic pendulum was used to measure the total momentum imparted to the bob from a close-in detonation as a function of absorber materials and distance from the bob. These results provided a comparison of impulse delivered to the bob among the absorber materials with the control measurement of no absorber. Results indicate that, for near-contact detonations, the addition of energy-absorbing materials increased the impulse loading to the pendulum for selected scaled ranges of simulated threats.
C1 [Chiarito, Vincent P.; Walker, Robert E.; Minor, Jared K.; Ray, James C.] USA, Geotech & Struct Lab, ERDC, Vicksburg, MS 39180 USA.
[Coleman, Thomas G.] Atlantic City Int Airport, Dept Homeland Secur, Transportat Secur Lab, Atlantic City, NJ 08405 USA.
RP Chiarito, VP (reprint author), USA, Geotech & Struct Lab, ERDC, 3909 Halls Ferry Rd, Vicksburg, MS 39180 USA.
EM Vincent.P.Chiarito@usace.army.mil
FU Science and Technology Directorate of the Department of Homeland
Security
FX This research was supported by the Science and Technology Directorate of
the Department of Homeland Security. Permission to publish was granted
by the Department of Homeland Security and the Director, Geotechnical
and Structures Laboratory, approved for public release; distribution is
unlimited.
NR 4
TC 0
Z9 0
U1 0
U2 1
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0361-1981
J9 TRANSP RES RECORD
JI Transp. Res. Record
PY 2010
IS 2202
BP 85
EP 92
DI 10.3141/2202-11
PG 8
WC Engineering, Civil; Transportation; Transportation Science & Technology
SC Engineering; Transportation
GA 705XY
UT WOS:000286175200011
ER
PT J
AU Arellano, D
Tatum, JB
Stark, TD
Horvath, JS
Leshchinsky, D
AF Arellano, David
Tatum, John Benjamin
Stark, Timothy D.
Horvath, John S.
Leshchinsky, Dov
TI Framework for Design Guideline for Expanded Polystyrene Block Geofoam in
Slope Stabilization and Repair
SO TRANSPORTATION RESEARCH RECORD
LA English
DT Article
AB This paper presents the framework for the interim design guideline for the use of expanded polystyrene (EPS) block geofoam for slope stabilization and repair based on the findings of the NCHRP Project 24 11(02) Phase I study The overall objective of this research is to develop a design guideline as well as an appropriate material and construction standard for the use of EPS block geofoam for the function of lightweight fill in slope stability applications The recommended design methodology included in the framework is based on an assessment of the existing technology and literature The Phase II work will refine the interim design guideline framework and address some uncertainties in the current state of the practice of analyzing various failure mechanisms Included in the design procedure The completed research will consist of the following five primary research products (a) a summary of the relevant engineering properties (b) a comprehensive design guideline (c) a material and construction standard (d) economic data and (e) a detailed numerical exam pie No formal design guidelines on the use of any type of lightweight fill for slope stabilization by reducing the driving forces are available Therefore the proposed interim design guideline for EPS block geofoam can serve as a blueprint for the use of other types of lightweight fills in slope stability applications The NCHRP Project 24 11(01) and the Project 24 11(02) Phase I research confirmed that EPS block geofoam is a unique lightweight fill material and can provide a safe and economical solution for slope stabilization and repair
C1 [Arellano, David] Univ Memphis, Dept Civil Engn, Memphis, TN 38152 USA.
[Tatum, John Benjamin] US Army Corps Engn, Memphis, TN 38103 USA.
[Stark, Timothy D.] Univ Illinois, Dept Civil & Environm Engn, Urbana, IL 61801 USA.
[Horvath, John S.] Manhattan Coll, Dept Civil & Environm Engn, Bronx, NY 10471 USA.
[Leshchinsky, Dov] Univ Delaware, Dept Civil & Environm Engn, Newark, DE 19716 USA.
RP Arellano, D (reprint author), Univ Memphis, Dept Civil Engn, 104 Engn Sci Bldg, Memphis, TN 38152 USA.
FU NCHRP [NCHRP 24 11(02)]
FX The authors acknowledge the support provided by NCHRP under Project
NCHRP 24 11(02) Guidelines for Geofoam Applications in Slope Stability
Projects
NR 41
TC 0
Z9 0
U1 1
U2 2
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0361-1981
J9 TRANSPORT RES REC
JI Transp. Res. Record
PY 2010
IS 2170
BP 100
EP 108
PG 9
WC Engineering, Civil; Transportation; Transportation Science & Technology
SC Engineering; Transportation
GA 703CW
UT WOS:000285952700012
ER
PT S
AU Grasing, D
Ellwood, B
AF Grasing, David
Ellwood, Benjamin
BE Carapezza, EM
TI Development of Acoustic Sniper Localization Methods and Models
SO UNATTENDED GROUND, SEA, AND AIR SENSOR TECHNOLOGIES AND APPLICATIONS XII
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Unattended Ground, Sea, and Air Sensor Technologies and
Applications XII
CY APR 05-08, 2010
CL Orlando, FL
SP SPIE
DE Sniper Detection; Localization; Shockwave; Muzzle Blast; Array; TDOA;
Ballistics; Acoustic; Gunfire Detection Systems
AB A novel examination of a method capable of providing situational awareness of sniper fire from small arms fire is presented. Situational Awareness (SA) information is extracted by exploiting two distinct sounds created by small arms discharge: the muzzle blast (created when the bullet leaves the barrel of the gun) and the shockwave (sound created by a supersonic bullet). The direction of arrival associated with the muzzle blast will always point in the direction of the shooter. Range can be estimated from the muzzle blast alone, however at greater distances geometric dilution of precision will make obtaining accurate range estimates difficult. To address this issue, additional information obtained from the shockwave is utilized in order to estimate range to shooter. The focus of the paper is the development of a shockwave propagation model, the development of ballistics models (based off empirical measurements), and the subsequent application towards methods of determining shooter position. Knowledge of the rounds ballistics is required to estimate range to shooter. Many existing methods rely on extracting information from the shockwave in an attempt to identify the round type and thus the ballistic model to use ([1]). It has been our experience that this information becomes unreliable at greater distances or in high noise environments. Our method differs from existing solutions in that classification of the round type is not required, thus making the proposed solution more robust. Additionally, we demonstrate that sufficient accuracy can be achieved without the need to classify the round.
C1 [Grasing, David; Ellwood, Benjamin] USA, RDECOM ARDEC, Picatinny Arsenal, NJ 07806 USA.
RP Grasing, D (reprint author), USA, RDECOM ARDEC, Picatinny Arsenal, NJ 07806 USA.
EM david.grasing@us.army.mil; benjamin.ellwood@us.army.mil
NR 5
TC 0
Z9 0
U1 1
U2 6
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8157-3
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7693
AR 769312
DI 10.1117/12.850119
PG 13
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BSN18
UT WOS:000284996500019
ER
PT S
AU Scanlon, MV
Ludwig, WD
AF Scanlon, Michael V.
Ludwig, William D.
BE Carapezza, EM
TI Sensor and Information Fusion for Improved Hostile Fire Situational
Awareness
SO UNATTENDED GROUND, SEA, AND AIR SENSOR TECHNOLOGIES AND APPLICATIONS XII
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Unattended Ground, Sea, and Air Sensor Technologies and
Applications XII
CY APR 05-08, 2010
CL Orlando, FL
SP SPIE
DE Sniper; sensor; hostile; threat; detection; mortar; acoustic; IR
AB A research-oriented Army Technology Objective (ATO) named Sensor and Information Fusion for Improved Hostile Fire Situational Awareness uniquely focuses on the underpinning technologies to detect and defeat any hostile threat; before, during, and after its occurrence. This is a joint effort led by the Army Research Laboratory, with the Armaments and the Communications and Electronics Research, Development, and Engineering Centers (CERDEC and ARDEC) partners. It addresses distributed sensor fusion and collaborative situational awareness enhancements, focusing on the underpinning technologies to detect/identify potential hostile shooters prior to firing a shot and to detect/classify/locate the firing point of hostile small arms, mortars, rockets, RPGs, and missiles after the first shot. A field experiment conducted addressed not only diverse modality sensor performance and sensor fusion benefits, but gathered useful data to develop and demonstrate the ad hoc networking and dissemination of relevant data and actionable intelligence. Represented at this field experiment were various sensor platforms such as UGS, soldier-worn, manned ground vehicles, UGVs, UAVs, and helicopters. This ATO continues to evaluate applicable technologies to include retro-reflection, UV, IR, visible, glint, LADAR, radar, acoustic, seismic, E-field, narrow-band emission and image processing techniques to detect the threats with very high confidence. Networked fusion of multi-modal data will reduce false alarms and improve actionable intelligence by distributing grid coordinates, detection report features, and imagery of threats.
C1 [Scanlon, Michael V.; Ludwig, William D.] USA, Res Lab, RDRL SES P, Adelphi, MD 20783 USA.
RP Scanlon, MV (reprint author), USA, Res Lab, RDRL SES P, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
EM michael.scanlon@us.army.mil
NR 17
TC 1
Z9 1
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8157-3
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7693
AR 76930H
DI 10.1117/12.850406
PG 20
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BSN18
UT WOS:000284996500006
ER
PT S
AU Schumer, S
AF Schumer, Sean
BE Carapezza, EM
TI Time-Domain Classification of Humans using Seismic Sensors
SO UNATTENDED GROUND, SEA, AND AIR SENSOR TECHNOLOGIES AND APPLICATIONS XII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Unattended Ground, Sea, and Air Sensor Technologies and
Applications XII
CY APR 05-08, 2010
CL Orlando, FL
SP SPIE
DE Seismic Sensing; Intrusion Detection; Classification; Walker Detection;
Animal Discrimination
AB Methods of human classification and direction of travel are developed for the purpose of being embedded in low-power, low-cost microprocessors. Techniques are explored for classifying an impulsive set of events in a seismic field as being either human or non-human based on information extrapolated from time-domain data of geophones. Additionally, a method of time domain direction of travel determination is explored. As a target is traversing the field of detection, simple impulse detection techniques determine seismic activities that are of interest. By recreating the time-domain signal as an average energy over time, the frequency of footstep of the target can be determined after a human has left the field by using post processing techniques, even when multiple targets are present. An autocorrelation of the energy averaged signal will yield an output that can be used to easily determine the most dominant frequency of the observed series of impulsive events. This method is capable of classifying humans under certain conditions at a rate of up to 98% with a varying rate of rejection for different types of animals and environmental factors. The technique can be easily integrated to work in conjunction with other modalities for an increase in classifier confidence.
C1 USA, RDECOM ARDEC, Picatinny Arsenal, NJ 07806 USA.
RP Schumer, S (reprint author), USA, RDECOM ARDEC, Picatinny Arsenal, NJ 07806 USA.
EM sean.schumer@us.army.mil
NR 8
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8157-3
J9 PROC SPIE
PY 2010
VL 7693
AR 769311
DI 10.1117/12.850092
PG 11
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BSN18
UT WOS:000284996500018
ER
PT S
AU Snell, MA
AF Snell, Mark A.
BE Symonds, CL
TI "Very Crude Notions on the Subject": William B. Franklin's Amphibious
Assault at Eltham's Landing
SO UNION COMBINED OPERATIONS IN THE CIVIL WAR
SE Norths Civil War
LA English
DT Article; Book Chapter
C1 [Snell, Mark A.] Shepherdstown Univ, Shepherdstown, WV 25443 USA.
[Snell, Mark A.] George Tyler Moore Ctr Study Civil War, Shepherdstown, WV USA.
[Snell, Mark A.] US Mil Acad, West Point, NY USA.
RP Snell, MA (reprint author), Shepherdstown Univ, Shepherdstown, WV 25443 USA.
NR 23
TC 0
Z9 0
U1 0
U2 0
PU FORDHAM UNIV PRESS
PI BRONX
PA UNIV BOX L, BRONX, NY 10458 USA
SN 1089-8719
BN 978-0-8232-3286-4
J9 N CIVIL WAR
PY 2010
BP 32
EP 43
D2 10.5422/fso/9780823232864.001.0001
PG 12
WC History
SC History
GA BYP11
UT WOS:000299545900004
ER
PT S
AU Bodt, BA
Camden, R
AF Bodt, Barry A.
Camden, Richard
BE Gerhart, GR
Gage, DW
Shoemaker, CM
TI A final evaluation of pedestrian detection and tracking from a moving
platform
SO UNMANNED SYSTEMS TECHNOLOGY XII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Unmanned Systems Technology XII
CY APR 06-09, 2010
CL Orlando, FL
SP SPIE
DE unmanned ground vehicle; experimental design; pedestrian tracking;
perception; safety; planning
AB This work represents the fifth in a series of studies on safe operations of unmanned ground vehicles in the proximity of pedestrians. The U.S. Army Research Laboratory (ARL), the National Institute of Standards and Technology (NIST), and the Robotics Collaborative Technology Alliance (RCTA) conducted the study on the campus of NIST in Gaithersburg, MD in 2009, the final year of the RCTA.
The experiment was to assess the performance of six RCTA algorithms to detect and track moving pedestrians from sensors mounted on a moving platform. Sensors include 2-D and 3-D LADAR, 2-D SICK, and stereovision. Algorithms reported only detected human tracks. NIST ground truth methodology was used to assess the algorithm-reported detections as to true positive, misclassification, or false positive as well as distance to first detection and elapsed tracking time. A NIST-developed viewer facilitated real-time data checking and subsequent analysis. Factors of the study include platform speed, pedestrian speed, and clutter density in the environment. Pedestrian motion was choreographed to ensure similar perspective from the platform regardless of experimental conditions. Pedestrians were upright in the principal study, but excursions examined group movement, nonlinear paths, occluded paths, and alternative postures.
We will present the findings of this study and benchmark detection and tracking for subsequent robotic research in this program. We also address the impact of this work on pedestrian avoidance.
C1 [Bodt, Barry A.] USA, Res Lab, ATTN RDRL CII C, Aberdeen Proving Ground, MD 21005 USA.
RP Bodt, BA (reprint author), USA, Res Lab, ATTN RDRL CII C, Aberdeen Proving Ground, MD 21005 USA.
NR 4
TC 0
Z9 0
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8156-6
J9 PROC SPIE
PY 2010
VL 7692
AR 76920H
DI 10.1117/12.850490
PG 12
WC Engineering, Electrical & Electronic; Robotics; Optics
SC Engineering; Robotics; Optics
GA BSM43
UT WOS:000284932200016
ER
PT S
AU Cosenzo, KA
Barnes, MJ
AF Cosenzo, Keryl A.
Barnes, Michael J.
BE Gerhart, GR
Gage, DW
Shoemaker, CM
TI Human Robot Interaction Research For Current and Future Military
Applications: From the Laboratory to the Field
SO UNMANNED SYSTEMS TECHNOLOGY XII
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Unmanned Systems Technology XII
CY APR 06-09, 2010
CL Orlando, FL
SP SPIE
DE Human Robot Interaction; Military; Modeling; Simulation; Experimentation
ID MULTITASKING ENVIRONMENT; CONCURRENT PERFORMANCE; DESIGN; TASKS
AB Unmanned air and ground vehicles are an integral part of military operations. However, the use of the robot goes beyond moving the platform from point A to point B. The operator who is responsible for the robots will have a multitude of tasks to complete; route planning for the robot, monitoring the robot during the mission, monitoring and interpreting the sensor information received by the robot, and communicating that information with others. As a result, the addition of robotics can be considered a burden on the operator if not integrated appropriately into the system. The goal of the US Army Research Laboratory's Human Robotic Interaction (HRI) Program is to enable the Soldier to use robotic systems in a way that increases performance, that is, to facilitate effective collaboration between unmanned systems and the Soldier. The program uses multiple research approaches; modeling, simulation, laboratory experimentation, and field experimentation to achieve this overall goal. We have basic and applied research in HRI to include supervisory control, mounted and dismounted robotic control, and mitigation strategies for the HRI environment. This paper describes our HRI program across these various domains and how our research is supporting both current and future military operations.
C1 [Cosenzo, Keryl A.; Barnes, Michael J.] USA, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
RP Cosenzo, KA (reprint author), USA, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
NR 28
TC 1
Z9 1
U1 2
U2 12
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8156-6
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7692
AR 769204
DI 10.1117/12.850038
PG 9
WC Engineering, Electrical & Electronic; Robotics; Optics
SC Engineering; Robotics; Optics
GA BSM43
UT WOS:000284932200003
ER
PT S
AU Edge, HL
Brown, A
Collins, J
AF Edge, Harris L.
Brown, Ainsmar
Collins, Jason
BE Gerhart, GR
Gage, DW
Shoemaker, CM
TI Pressurized Structures-Based Hybrid Unmanned Aerial Vehicles
SO UNMANNED SYSTEMS TECHNOLOGY XII
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Unmanned Systems Technology XII
CY APR 06-09, 2010
CL Orlando, FL
SP SPIE
DE unmanned aerial vehicle; UAV; lighter than air; pressurized structure;
hybrid vehicle
AB This paper describes the initial results of an investigation into building unmanned aerial vehicles (UAVs) with pressurized structures-based (PSB) technologies. Basically, the UAV will be constructed in such a way that a considerable percentage of its weight will be supported by or composed of inflatable structures containing air or helium. PSB technologies can be employed in any number of UAV designs. The goals of this research are to ascertain feasibility of UAV construction using PSB technology and finding methods and designs employing PSB technology to increase vehicle performance for missions of interest to the military.
C1 [Edge, Harris L.; Brown, Ainsmar] USA, Res Lab, RDRL VTU, Aberdeen Proving Ground, MD 21005 USA.
RP Edge, HL (reprint author), USA, Res Lab, RDRL VTU, Aberdeen Proving Ground, MD 21005 USA.
EM edge@arl.army.mil
NR 7
TC 0
Z9 0
U1 1
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8156-6
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7692
AR 76921M
DI 10.1117/12.850719
PG 12
WC Engineering, Electrical & Electronic; Robotics; Optics
SC Engineering; Robotics; Optics
GA BSM43
UT WOS:000284932200046
ER
PT S
AU Hudas, G
Lewis, FL
Vamvoudakis, KG
AF Hudas, Greg
Lewis, F. L.
Vamvoudakis, K. G.
BE Gerhart, GR
Gage, DW
Shoemaker, CM
TI Online Gaming for Learning Optimal Team Strategies in Real Time
SO UNMANNED SYSTEMS TECHNOLOGY XII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Unmanned Systems Technology XII
CY APR 06-09, 2010
CL Orlando, FL
SP SPIE
DE Online gaming; Optimal team behaviors; Multi-player games; Optimal team
strategies
ID FEEDBACK-CONTROL; EQUATION; SYSTEMS
AB This paper first presents an overall view for dynamical decision-making in teams, both cooperative and competitive. Strategies for team decision problems, including optimal control, zero-sum 2-player games (H-infinity control) and so on are normally solved for off-line by solving associated matrix equations such as the Riccati equation. However, using that approach, players cannot change their objectives online in real time without calling for a completely new off-line solution for the new strategies. Therefore, in this paper we give a method for learning optimal team strategies online in real time as team dynamical play unfolds. In the linear quadratic regulator case, for instance, the method learns the Riccati equation solution online without ever solving the Riccati equation. This allows for truly dynamical team decisions where objective functions can change in real time and the system dynamics can be time-varying.
C1 [Hudas, Greg] USA, RDECOM TARDEC, JCR, Warren, MI USA.
RP Hudas, G (reprint author), USA, RDECOM TARDEC, JCR, Warren, MI USA.
EM lewis@arri.uta.edu; kyriakos@arri.uta.edu
NR 19
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8156-6
J9 PROC SPIE
PY 2010
VL 7692
AR 76920W
DI 10.1117/12.850231
PG 13
WC Engineering, Electrical & Electronic; Robotics; Optics
SC Engineering; Robotics; Optics
GA BSM43
UT WOS:000284932200030
ER
PT S
AU Hutchison, J
Klager, G
McCoy, E
Fite, D
Frederick, B
AF Hutchison, John
Klager, Gene
McCoy, Edward
Fite, David
Frederick, Brian
BE Gerhart, GR
Gage, DW
Shoemaker, CM
TI Robotic-Mounted Detection System, robotics for route clearance
SO UNMANNED SYSTEMS TECHNOLOGY XII
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Unmanned Systems Technology XII
CY APR 06-09, 2010
CL Orlando, FL
SP SPIE
DE Robotics; NVESD; assisted tele-operation; route clearance;
semi-autonomous; unmanned
AB Robotic Mounted Detection System (RMDS) is a government program to enable robotic control of a Husky route clearance vehicle with a mine detection sensor payload. The goal is for the operator to control the Husky and mine detection sensor from another vehicle. This program will provide the user with standard tele-operation control of the vehicle as well as semi-autonomous modes including cruise control, precision waypoint navigation with operator error correction and a visual mode allowing the operator to enter way points in the current video feed. The use of autonomy will be tailored to give the operator maximum control of the robotic vehicle's path while minimizing the effort required to maintain the desired route. Autonomous alterations of the path would conflict with the goal of route clearance, so waypoint navigation will allow the operator to supply offsets to counteract location errors. While following a waypoint path, the Husky will be capable of controlling its speed to maintain an operator specified distance from the control vehicle. Obstacle avoidance will be limited to protecting the mine detection sensor, leaving any decision to leave the path up to the operator. Video will be the primary navigational sensor feed to the operator, who will use an augmented steering wheel controller and computer display to control the Husky. A LADAR system will be used to detect obstacles that could damage the mine sensor and to maintain the optimal sensor orientation while the vehicle is moving. Practical issues and lessons learned during integration will be presented.
C1 [Hutchison, John; Klager, Gene] USA, RDECOM CERDEC NVESD, Washington, DC USA.
RP Hutchison, J (reprint author), USA, RDECOM CERDEC NVESD, Washington, DC USA.
NR 0
TC 0
Z9 0
U1 1
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8156-6
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7692
AR 76921G
DI 10.1117/12.852447
PG 9
WC Engineering, Electrical & Electronic; Robotics; Optics
SC Engineering; Robotics; Optics
GA BSM43
UT WOS:000284932200043
ER
PT S
AU Milojkovic, P
Gill, J
Frattin, D
Coyle, K
Haack, K
Myhr, S
Rajan, D
Douglas, S
Papamichalis, P
Somayaji, M
Christensen, M
Krapels, K
AF Milojkovic, Predrag
Gill, John
Frattin, Dan
Coyle, Kevin
Haack, Karl
Myhr, Scot
Rajan, Dinesh
Douglas, Scott
Papamichalis, Panos
Somayaji, Manjunath
Christensen, Marc
Krapels, Keith
BE Gerhart, GR
Gage, DW
Shoemaker, CM
TI Multi-channel, Agile, Computationally Enhanced Camera Based on the
PANOPTES Architecture
SO UNMANNED SYSTEMS TECHNOLOGY XII
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Unmanned Systems Technology XII
CY APR 06-09, 2010
CL Orlando, FL
SP SPIE
DE imaging; computational; multi-field-of-view; super-resolution
ID MULTIPLEXED IMAGE-RECONSTRUCTION; OPTICAL-SYSTEM DIVERSITY
AB A multi-channel, agile, computationally enhanced camera based on the PANOPTES architecture is presented. Details of camera operational concepts are outlined. Preliminary image acquisition results and an example of super-resolution enhancement of captured data are given.
C1 [Milojkovic, Predrag] USA, Res Lab, Adelphi, MD 20783 USA.
RP Milojkovic, P (reprint author), USA, Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
EM Predrag.Milojkovic@us.army.mil
NR 6
TC 0
Z9 0
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8156-6
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7692
AR 76921Z
DI 10.1117/12.864995
PG 6
WC Engineering, Electrical & Electronic; Robotics; Optics
SC Engineering; Robotics; Optics
GA BSM43
UT WOS:000284932200053
ER
PT S
AU Muench, P
Bednarz, D
Czerniak, GP
Cheok, KC
AF Muench, Paul
Bednarz, David
Czerniak, Gregory P.
Cheok, Ka C.
BE Gerhart, GR
Gage, DW
Shoemaker, CM
TI OPTIMAL POWERING SCHEMES FOR LEGGED ROBOTICS
SO UNMANNED SYSTEMS TECHNOLOGY XII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Unmanned Systems Technology XII
CY APR 06-09, 2010
CL Orlando, FL
SP SPIE
AB Legged Robots have tremendous mobility, but they can also be very inefficient. These inefficiencies can be due to suboptimal control schemes, among other things. If your goal is to get from point A to point B in the least amount of time, your control scheme will be different from if your goal is to get there using the least amount of energy. In this paper, we seek a balance between these extremes by looking at both efficiency and speed. We model a walking robot as a rimless wheel, and, using Pontryagin's Maximum Principle (PMP), we find an "on-off" control for the model, and describe the switching curve between these control extremes.
C1 [Muench, Paul; Bednarz, David; Czerniak, Gregory P.] USA, RDECOM TARDEC, Washington, DC USA.
RP Muench, P (reprint author), USA, RDECOM TARDEC, Washington, DC USA.
NR 10
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8156-6
J9 PROC SPIE
PY 2010
VL 7692
AR 769214
DI 10.1117/12.851156
PG 9
WC Engineering, Electrical & Electronic; Robotics; Optics
SC Engineering; Robotics; Optics
GA BSM43
UT WOS:000284932200035
ER
PT S
AU Tahmoush, D
Silvious, J
Burke, E
AF Tahmoush, Dave
Silvious, Jerry
Burke, Ed
BE Carapezza, EM
TI A Radar Unattended Ground Sensor with Micro-Doppler Capabilities for
False Alarm Reduction
SO UNMANNED-UNATTENDED SENSORS AND SENSOR NETWORKS VII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Unmanned/Unattended Sensors and Sensor Networks VII
CY SEP 20-22, 2010
CL Toulouse, FRANCE
SP SPIE, Electro Magnet Remote Sensing Defence Technol Ctr, SFO
DE Radar; micro-Doppler; UGS
ID FEATURE-EXTRACTION; GAIT
AB Unattended ground sensors (UGS) provide the capability to inexpensively secure remote borders and other areas of interest. However, the presence of normal animal activity can often trigger a false alarm. Accurately detecting humans and distinguishing them from natural fauna is an important issue in security applications to reduce false alarm rates and improve the probability of detection. In particular, it is important to detect and classify people who are moving in remote locations and transmit back detections and analysis over extended periods at a low cost and with minimal maintenance. We developed and demonstrate a compact radar technology that is scalable to a variety of ultra-lightweight and low-power platforms for wide area persistent surveillance as an unattended, unmanned, and man-portable ground sensor. The radar uses micro-Doppler processing to characterize the tracks of moving targets and to then eliminate unimportant detections due to animals as well as characterize the activity of human detections.
False alarms from sensors are a major liability that hinders widespread use. Incorporating rudimentary intelligence into sensors can reduce false alarms but can also result in a reduced probability of detection. Allowing an initial classification that can be updated with new observations and tracked over time provides a more robust framework for false alarm reduction at the cost of additional sensor observations. This paper explores these tradeoffs with a small radar sensor for border security.
Multiple measurements were done to try to characterize the micro-Doppler of human versus animal and vehicular motion across a range of activities. Measurements were taken at the multiple sites with realistic but low levels of clutter. Animals move with a quadrupedal motion, which can be distinguished from the bipedal human motion. The micro-Doppler of a vehicle with rotating parts is also shown, along with ground truth images. Comparisons show large variations for different types of motion by the same type of animal.
This paper presents the system and data on humans, vehicles, and animals at multiple angles and directions of motion, demonstrates the signal processing approach that makes the targets visually recognizable, verifies that the UGS radar has enough micro-Doppler capability to distinguish between humans, vehicles, and animals, and analyzes the probability of correct classification.
C1 [Tahmoush, Dave; Silvious, Jerry; Burke, Ed] USA, Res Lab, Adelphi, MD 20783 USA.
RP Tahmoush, D (reprint author), USA, Res Lab, Adelphi, MD 20783 USA.
NR 40
TC 0
Z9 0
U1 1
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8351-5
J9 PROC SPIE
PY 2010
VL 7833
AR 78330I
DI 10.1117/12.864959
PG 14
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BTQ35
UT WOS:000287764000013
ER
PT B
AU Grabenstein, JD
AF Grabenstein, John D.
BE Artenstein, AW
TI Toxoid Vaccines
SO VACCINES: A BIOGRAPHY
LA English
DT Article; Book Chapter
ID COMBINED PERTUSSIS-VACCINE; WHOOPING-COUGH VACCINE; FORMER SOVIET-UNION;
ACTIVE IMMUNIZATION; UNITED-STATES; DIPHTHERIA IMMUNIZATION; EPIDEMIC
DIPHTHERIA; BENEFITS DEBATE; TOXIN-ANTITOXIN; SCHICK TEST
C1 [Grabenstein, John D.] Merck Vaccines & Infect Dis, Med Affairs & Policy, West Point, PA USA.
[Grabenstein, John D.] USA, Mil Vaccine Agcy, Washington, DC USA.
RP Grabenstein, JD (reprint author), Merck Vaccines & Infect Dis, Med Affairs & Policy, West Point, PA USA.
EM john_grabenstein@merck.com
NR 140
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-1107-0
PY 2010
BP 105
EP 124
DI 10.1007/978-1-4419-1108-7_7
D2 10.1007/978-1-4419-1108-7
PG 20
WC History & Philosophy Of Science; Immunology; Microbiology
SC History & Philosophy of Science; Immunology; Microbiology
GA BNC81
UT WOS:000274169300007
ER
PT B
AU Binn, LN
Lemon, SM
AF Binn, Leonard N.
Lemon, Stanley M.
BE Artenstein, AW
TI Hepatitis A
SO VACCINES: A BIOGRAPHY
LA English
DT Article; Book Chapter
ID CELL-CULTURE; VIRUS-VACCINE; EXPERIMENTAL-INFECTION; NEUTRALIZING
ANTIBODY; AOTUS-TRIVIRGATUS; VIRAL-HEPATITIS; SERIAL PASSAGE; MRC-5
CELLS; LIVE; CHIMPANZEES
C1 [Binn, Leonard N.] Walter Reed Army Inst Res, Div Viral Dis, Silver Spring, MD 20910 USA.
[Lemon, Stanley M.] Univ Texas Med Branch, Inst Human Infect & Immun, Ctr Hepatitis Res, Dept Microbiol & Immunol, Galveston, TX 77555 USA.
[Lemon, Stanley M.] US FDA, Advisory Comm Vaccines & Related Biol, Rockville, MD 20857 USA.
RP Binn, LN (reprint author), Walter Reed Army Inst Res, Div Viral Dis, Silver Spring, MD 20910 USA.
EM leonard.binn@us.army.mil; smlemon@utmb.edu
NR 52
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-1107-0
PY 2010
BP 335
EP 346
DI 10.1007/978-1-4419-1108-7_19
D2 10.1007/978-1-4419-1108-7
PG 12
WC History & Philosophy Of Science; Immunology; Microbiology
SC History & Philosophy of Science; Immunology; Microbiology
GA BNC81
UT WOS:000274169300019
ER
PT B
AU Linthicum, KJ
Anyamba, A
Chretien, JP
Small, J
Tucker, CJ
Britch, SC
AF Linthicum, Kenneth J.
Anyamba, Assaf
Chretien, Jean-Paul
Small, Jennifer
Tucker, Compton J.
Britch, Seth C.
BE Atkinson, PW
TI The Role of Global Climate Patterns in the Spatial and Temporal
Distribution of Vector-Borne Disease
SO VECTOR BIOLOGY, ECOLOGY AND CONTROL
LA English
DT Article; Book Chapter
DE Climate change; ENSO; Disease; Vectors
ID RIFT-VALLEY FEVER; NINO-SOUTHERN OSCILLATION; EL-NINO; MALARIA; VIRUS;
KENYA; PRECIPITATION; TEMPERATURE; EPIDEMICS; WEATHER
AB Global climate variability patterns, such as those associated with the El Nino/Southern Oscillation (ENSO) phenomena, have been shown to have an impact on vector-borne infectious disease outbreaks. Evidence of the links between ENSO driven climate anomalies and infectious diseases, particularly those transmitted by insects, can allow us to provide improved long range forecasts of an epidemic or epizootic. Using satellite generated data developing climate anomalies suggested potential disease risks for 2006 and 2007. Sea surface temperatures in the equatorial east Pacific Ocean anomalously increased significantly during July-October 2006 indicating the typical development of El Nino conditions. The persistence of these conditions led to extremes in global-scale climate anomalies comparable to what has been observed during similar conditions in the past. The 2006 development of El Nino conditions had significant implications for global public health. Extremes in climate events with above normal rainfall and flooding in some regions and extended drought periods in other regions occurred. Forecasting disease is critical for timely and effective planning of operational control programs. Here we describe global climate anomalies that led to forecasts of elevated disease risks that gave decision makers additional tools to make rational judgments concerning implementation of disease prevention and mitigation strategies.
C1 [Linthicum, Kenneth J.; Britch, Seth C.] USDA, Ctr Med Agr & Vet Entomol, Gainesville, FL 32608 USA.
[Anyamba, Assaf; Small, Jennifer; Tucker, Compton J.] NASA, Goddard Space Flight Ctr, Biospher Sci Branch, Greenbelt, MD 20771 USA.
[Chretien, Jean-Paul] Walter Reed Army Inst Res, Div Prevent Med, Dept Def Global Emerging Infect Surveillance & Re, Silver Spring, MD 20910 USA.
RP Linthicum, KJ (reprint author), USDA, Ctr Med Agr & Vet Entomol, Gainesville, FL 32608 USA.
EM Kenneth.Linthicum@ars.usda.gov; Assaf@ltpmail.gsfc.nasa.gov;
Jean-Paul.Chretien@na.amedd.army.mil; jsmall@pop900.gsfc.nasa.gov;
compton@ltpmailx.gsfc.nasa.gov; Seth.Britch@ars.usda.gov
OI Chretien, Jean-Paul/0000-0001-8143-6823
NR 33
TC 1
Z9 1
U1 0
U2 9
PU SPRINGER
PI DORDRECHT
PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS
BN 978-90-481-2457-2
PY 2010
BP 3
EP 13
DI 10.1007/978-90-481-2458-9_1
D2 10.1007/978-90-481-2458-9
PG 11
WC Entomology; Infectious Diseases
SC Entomology; Infectious Diseases
GA BNH47
UT WOS:000274565700001
ER
PT J
AU Lipscomb, TP
Scott, DP
Schulman, FY
AF Lipscomb, Thomas P.
Scott, Dana P.
Schulman, F. Yvonne
TI Primary Site of Sea Lion Carcinomas
SO VETERINARY PATHOLOGY
LA English
DT Letter
ID ZALOPHUS-CALIFORNIANUS
C1 [Lipscomb, Thomas P.; Schulman, F. Yvonne] Armed Forces Inst Pathol, Dept Vet Pathol, Washington, DC 20306 USA.
[Scott, Dana P.] USA, Med Dept Ctr & Sch, San Antonio, TX USA.
RP Lipscomb, TP (reprint author), Armed Forces Inst Pathol, Dept Vet Pathol, Washington, DC 20306 USA.
NR 2
TC 1
Z9 1
U1 1
U2 2
PU AMER COLL VET PATHOLOGIST
PI LAWRENCE
PA 810 EAST 10TH STREET, LAWRENCE, KS 66044 USA
SN 0300-9858
J9 VET PATHOL
JI Vet. Pathol.
PD JAN
PY 2010
VL 47
IS 1
SI SI
BP 184
EP 184
DI 10.1177/0300985809354348
PG 1
WC Pathology; Veterinary Sciences
SC Pathology; Veterinary Sciences
GA 551OJ
UT WOS:000274218600026
PM 20080501
ER
PT J
AU Chawla, JK
Khepar, SD
Sondhi, SK
Yadav, AK
AF Chawla, J. K.
Khepar, S. D.
Sondhi, S. K.
Yadav, A. K.
TI Assessment of long-term groundwater behaviour in Punjab, India
SO WATER INTERNATIONAL
LA English
DT Article
DE Punjab; water balance; groundwater; groundwater management; rise and
fall of water tables
AB Analyses of water table data for Punjab from 1979-98 revealed that the declining water table area in the northeast decreased by 28% and increased by 8% in the southwest; it remained almost constant in the central zone. Net groundwater balance was positive in the northeast and southwest zones but was negative in the central zone. From the point of view of the future use of groundwater, the northeast and southwest zones are relatively safe while the central zone is the worst hit and needs immediate remedial measures to control the fast-receding water levels.
C1 [Chawla, J. K.] Aman Inst Engn & Technol, Kotli, Pathankot, India.
[Yadav, A. K.] Govt Arunanchal Pradesh, Water Resources Dept, Itanagar, Arunachal Prade, India.
[Khepar, S. D.] USA, Washington, DC USA.
RP Chawla, JK (reprint author), Aman Inst Engn & Technol, Kotli, Pathankot, India.
EM drjkchawla@yahoo.com
NR 18
TC 7
Z9 7
U1 0
U2 1
PU ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXFORDSHIRE, ENGLAND
SN 0250-8060
J9 WATER INT
JI Water Int.
PY 2010
VL 35
IS 1
BP 63
EP 77
DI 10.1080/02508060903513502
PG 15
WC Engineering, Civil; Water Resources
SC Engineering; Water Resources
GA 550XG
UT WOS:000274166400007
ER
PT J
AU Hooper, B
AF Hooper, Bruce
TI River basin organization performance indicators: application to the
Delaware River basin commission
SO WATER POLICY
LA English
DT Article
DE Integrated river basin management; Integrated water resources
management; Performance indicators; River basin organizations
ID WATER-RESOURCES MANAGEMENT; CATCHMENT MANAGEMENT; AFRICA
AB This paper reports the development of performance indicators of a river basin management organization's ability to undertake integrated water resources management, and applies them to a US basin organization: a river basin commission. Integrated water resources management (IWRM) and integrated river basin management (IRBM) are defined, in the context of international and US advances in IWRM and IRBM. A suite of good governance factors was assembled from the reviews of consultants' practical experiences in river basin management, peer-reviewed literature, government reports and policy statements, and reports of river basin management practice. A list of impediments to the implementation of IRBM was also assembled. These sources were used as the data set to develop 115 indicators of best practice in IRBM; these indicators were grouped into ten categories: coordinated decision-making, responsive decision-making, goals and goal shift, financial sustainability, organizational design, role of law, training and capacity building, information and research, accountability and monitoring, private and public sector roles. This paper reports the results of a facilitated workshop with the Delaware River Basin Commission's staff and stakeholders to apply the indicators to their setting. The outcome of the workshop was a self-assessment tool for performance evaluation, involving triaging the basin organization situation, checking performance against 20 performance benchmarks and using 63 performance indicators for basin commission settings. The paper concludes with a discussion of the issues surrounding the application of the performance indicators to other US basins and commissions.
C1 [Hooper, Bruce] DHI, Brisbane, Qld, Australia.
[Hooper, Bruce] USA Corps Engineers, IWR, Alexandria, VA USA.
RP Hooper, B (reprint author), DHI, Brisbane, Qld, Australia.
EM bph@dhigroup.com
FU US Army Corps of Engineers; Institute of Water Resources, Alexandria,
Virginia, USA; US Corps of Engineers Institute of Water Resources
(Hooper) [2006]
FX The author wishes to thank anonymous reviewers for comments on earlier
drafts of this paper. The comments and opinions presented here remain
solely those of the author. The author wishes to acknowledge the staff
of the Delaware River Basin Commission for their input in field testing
the indicators reported in this paper. Funding for the research reported
in this paper was provided by the US Army Corps of Engineers, Institute
of Water Resources, Alexandria, Virginia, USA, under a Universities'
Council on Water Resources Water Studies Fellowship. The work reported
in this paper is derived from a fellowship with the US Corps of
Engineers Institute of Water Resources (Hooper, 2006).
NR 91
TC 10
Z9 12
U1 4
U2 17
PU IWA PUBLISHING
PI LONDON
PA ALLIANCE HOUSE, 12 CAXTON ST, LONDON SW1H0QS, ENGLAND
SN 1366-7017
J9 WATER POLICY
JI Water Policy
PY 2010
VL 12
IS 4
BP 461
EP 478
DI 10.2166/wp.2010.111
PG 18
WC Water Resources
SC Water Resources
GA 638GR
UT WOS:000280882100001
ER
PT B
AU Harmon, RS
Lyons, WB
Goldsmith, ST
Carey, A
Welch, S
Welch, K
Forizs, I
Long, D
Mitasova, H
AF Harmon, R. S.
Lyons, W. B.
Goldsmith, S. T.
Carey, A.
Welch, S.
Welch, K.
Forizs, I.
Long, D.
Mitasova, H.
BE Birkle, P
TorresAlvarado, IS
TI Geochemistry of rivers in Panama
SO WATER-ROCK INTERACTION (WRI-13)
LA English
DT Proceedings Paper
CT 13th International Symposium on Water-Rock Interaction (WRI)
CY AUG 16-20, 2010
CL Guanajuato, MEXICO
SP Consejo Nacl Ciencia & Tecnologia, Centro Investigac Cientifica Educac Super Ensenada, Int Assoc GeoChemistry, WRI 7 USGS, Inst Mexicano Tecnologia Agua, Schlumberger Water Serv, Univ Guanajuato, Deutsche Gesell Tech Zusammenarbeit, Deutscher Akademischer Austauschdienst
ID NEW-ZEALAND; LOADS
AB From 2005-09, 103 rivers, 92 streams, and 15 soil seeps were sampled across a transect of similar to 500 km in Panama from the Lago Bayano area to the Costa Rica border. Measured ranges of temperature, TDS and pH are: 12.7 to 34.0 degrees C, 6 to 1901 mg/l, and 5.3 to 8.7. Average dissolved constituent contents (in mu mol/liter) are: Si = 506, Ca2+ = 265, Mg2+ = 220, Na+ = 357, K+ = 43, Cl-= 224, NO3-= 31, SO42-= 55. Average surface water TDS is low (TDS = 143 +/- 145 mg/l), suggesting a short residence time in the weathering zone for infiltrating precipitation. Compositional variability reflects both the nature of the terrain from which drainage is occurring and time since the last strong precipitation event. Calculated long-term chemical weathering yields range from 1.7 to 284 tons/km(2)/yr, lying toward the high end of the ranges reported in the literature. CO2 consumption rates range from 188 to 3951 x 10(3) mol/km(2)/yr, again falling toward the upper end of the ranges observed in other studies.
C1 [Harmon, R. S.] US Army Res Off, Res Triangle Pk, NC 27709 USA.
[Lyons, W. B.; Goldsmith, S. T.; Carey, A.; Welch, S.; Welch, K.] Ohio State Univ, Sch Earth Sci, Columbus, OH 43210 USA.
[Forizs, I.] Hungarian Acad Sci, Inst Geochem Res, Budapest, Hungary.
[Long, D.] Dept Geol Sci, E Lansing, MI USA.
[Mitasova, H.] North Carolina State Univ, Deptartment Marine Earth & Atmospher Sci, Raleigh, NC USA.
OI Mitasova, Helena/0000-0002-6906-3398
NR 11
TC 0
Z9 0
U1 0
U2 0
PU CRC PRESS-TAYLOR & FRANCIS GROUP
PI BOCA RATON
PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA
BN 978-1-4398-6299-5; 978-0-415-60426-0
PY 2010
BP 253
EP 256
PG 4
WC Geology; Water Resources
SC Geology; Water Resources
GA BG7YG
UT WOS:000392008600059
ER
PT J
AU Roppo, V
Cojocaru, C
Trull, J
Vilaseca, R
Scalora, M
AF Roppo, V.
Cojocaru, C.
Trull, J.
Vilaseca, R.
Scalora, M.
TI Cavity behavior of second and third harmonic inhomogeneous solutions of
Maxwell's equations
SO WAVES IN RANDOM AND COMPLEX MEDIA
LA English
DT Article; Proceedings Paper
CT 6th Summer CRI Workshop on Optical Waves in Metamaterials and their
Applications
CY MAY 27-30, 2009
CL Univ N Carolina, Charlotte, NC
SP Charlotte Res Inst
HO Univ N Carolina
ID MISMATCHED 2ND-HARMONIC GENERATION; OPTICAL HARMONICS; PHASE MODULATION;
LIGHT WAVES; DISPERSION; VELOCITY
AB We study second and third harmonic generation of ultrashort pulses in a cavity environment and focus on the role of a phase locking phenomenon that causes the pump to trap and drag the generated harmonic fields. The results reveal strong field localisation and resonance conditions for the phase locked components, which are tuned in a spectral region of huge nominal material absorption. This unique behavior suggests the possibility of new optical phenomena and new applications for opaque materials (i.e. semiconductors) in the visible and UV ranges, such as new laser sources with relatively high conversion efficiencies.
C1 [Roppo, V.; Cojocaru, C.; Trull, J.; Vilaseca, R.] Univ Politecn Cataluna, Dept Fis & Engn Nucl, Terrassa 08222, Spain.
[Roppo, V.; Scalora, M.] USA, CM Bowden Res Facil, RDECOM, Redstone Arsenal, AL 35803 USA.
RP Roppo, V (reprint author), Univ Politecn Cataluna, Dept Fis & Engn Nucl, Colom 11, Terrassa 08222, Spain.
EM vito.roppo@upc.edu
RI roppo, vito/D-9639-2012; Trull, Jose/L-9054-2014;
OI roppo, vito/0000-0003-0928-4209; Trull, Jose/0000-0002-5850-088X;
Vilaseca, Ramon/0000-0002-3736-5789
NR 19
TC 4
Z9 4
U1 0
U2 0
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 1745-5030
J9 WAVE RANDOM COMPLEX
JI Waves Random Complex Media
PY 2010
VL 20
IS 2
BP 319
EP 331
AR PII 922986660
DI 10.1080/17455030.2010.484842
PG 13
WC Physics, Multidisciplinary
SC Physics
GA 610HH
UT WOS:000278721800009
ER
PT J
AU Dubick, MA
Kheirabadi, BS
AF Dubick, Michael A.
Kheirabadi, Bijan S.
TI Hemostyptic wound bandages: are there any differences?
SO WIENER KLINISCHE WOCHENSCHRIFT
LA English
DT Article
C1 [Dubick, Michael A.; Kheirabadi, Bijan S.] USA, Inst Surg Res, San Antonio, TX USA.
RP Dubick, MA (reprint author), USA, Inst Surg Res, San Antonio, TX USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER WIEN
PI WIEN
PA SACHSENPLATZ 4-6, PO BOX 89, A-1201 WIEN, AUSTRIA
SN 0043-5325
J9 WIEN KLIN WOCHENSCHR
JI Wien. Klin. Wochen.
PY 2010
VL 122
SU 5
BP S18
EP S18
PG 1
WC Medicine, General & Internal
SC General & Internal Medicine
GA 727WX
UT WOS:000287834800007
PM 21598442
ER
PT J
AU Martini, WZ
AF Martini, Wenjun Zhou
TI Trauma associated coagulation disorders: acidosis, hypothermia and
coagulopathy
SO WIENER KLINISCHE WOCHENSCHRIFT
LA English
DT Editorial Material
ID TEMPERATURE; SWINE; PIGS
C1 USA, Inst Surg Res, Ft Sam Houston, TX 78234 USA.
RP Martini, WZ (reprint author), USA, Inst Surg Res, Ft Sam Houston, TX 78234 USA.
NR 17
TC 0
Z9 0
U1 1
U2 1
PU SPRINGER WIEN
PI WIEN
PA SACHSENPLATZ 4-6, PO BOX 89, A-1201 WIEN, AUSTRIA
SN 0043-5325
J9 WIEN KLIN WOCHENSCHR
JI Wien. Klin. Wochen.
PY 2010
VL 122
SU 5
BP S4
EP S5
PG 2
WC Medicine, General & Internal
SC General & Internal Medicine
GA 727WX
UT WOS:000287834800001
PM 21598436
ER
PT J
AU Geirhofer, S
Tong, L
Sadler, BM
AF Geirhofer, Stefan
Tong, Lang
Sadler, Brian M.
TI A sensing-based cognitive coexistence method for interfering
infrastructure and ad hoc systems
SO WIRELESS COMMUNICATIONS & MOBILE COMPUTING
LA English
DT Article
DE cognitive radio; resource allocation and interference management;
standards coexistence; dynamic spectrum access
ID POWER ALLOCATION; SPECTRUM ACCESS; SUBCARRIER
AB The rapid proliferation of wireless systems makes interference management more and more important. This paper presents a novel cognitive coexistence framework, which enables an infrastructure system to reduce interference to ad hoc or peer-to-peer communication links in close proximity. Motivated by the superior resources of the infrastructure system, we study how its centralized resource allocation can accommodate the ad hoc links based on sensing and predicting their interference patterns. Based on an ON/OFF continuous-time Markov chain model, the optimal allocation of power and transmission time is formulated as a convex optimization problem and structured solutions are derived. The optimal scheduling is extended to the case where the infrastructure channel is random and rate constraints need only be met in the long-term average. Finally, the multi-terminal case is addressed and the problem of optimal sub-channel allocation is discussed. Numerical performance analysis illustrates that utilizing the superior flexibility of the infrastructure links can effectively mitigate interference. Copyright (C) 2009 John Wiley & Sons, Ltd.
C1 [Geirhofer, Stefan; Tong, Lang] Cornell Univ, Sch Elect & Comp Engn, Ithaca, NY 14583 USA.
[Sadler, Brian M.] USA, Res Lab, Adelphi, MD 20783 USA.
RP Tong, L (reprint author), Cornell Univ, Sch Elect & Comp Engn, Ithaca, NY 14583 USA.
EM ltong@ece.cornell.edu
FU U.S. Army Research Laboratory [DAAD19-01-2-0011]; National Science
Foundation [CCF-0635070]
FX This work is supported in part by the U.S. Army Research Laboratory
under the Collaborative Agreement DAAD19-01-2-0011 and the National
Science Foundation under Contract CCF-0635070. The U.S. Government is
authorized to reproduce and distribute reprints for Government purposes
notwithstanding any copyright notation thereon. This work has been
presented in part at the IEEE Military Communications Conference, San
Diego, CA, November 2008.
NR 24
TC 5
Z9 6
U1 0
U2 2
PU JOHN WILEY & SONS INC
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 1530-8669
J9 WIREL COMMUN MOB COM
JI Wirel. Commun. Mob. Comput.
PD JAN
PY 2010
VL 10
IS 1
SI SI
BP 16
EP 30
DI 10.1002/wcm.896
PG 15
WC Computer Science, Information Systems; Engineering, Electrical &
Electronic; Telecommunications
SC Computer Science; Engineering; Telecommunications
GA 544SI
UT WOS:000273679200003
ER
PT S
AU Rao, RM
Nasrabadi, NM
Dianat, SA
AF Rao, Raghuveer M.
Nasrabadi, Nasser M.
Dianat, Sohail A.
BE Dianat, SA
Zoltowski, MD
TI Sparsity based interferometric imaging
SO WIRELESS SENSING, LOCALIZATION, AND PROCESSING V
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Wireless Sensing, Localization, and Processing V
CY APR 08-09, 2010
CL Orlando, FL
SP SPIE
DE Interferometric imaging; l(1) regularization
AB Correlative interferometric imaging relies on reconstructing object intensity by using the cross-correlation across distant sensor measurements. While Fourier inversion is commonly used, the problem can also be cast as a constrained optimization problem involving positivity and boundary constraints. This paper replaces the boundary constraint with a l(1) norm constraint that is known to induce sparsity under certain conditions. An experimental example demonstrates that such constrained optimization can potentially provide reconstruction whose extent conforms closely to that of the source.
C1 [Rao, Raghuveer M.; Nasrabadi, Nasser M.] USA, Res Lab, Adelphi, MD 20783 USA.
RP Rao, RM (reprint author), USA, Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
NR 9
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8170-2
J9 PROC SPIE
PY 2010
VL 7706
AR 77060H
DI 10.1117/12.851776
PG 7
WC Computer Science, Hardware & Architecture; Remote Sensing; Optics
SC Computer Science; Remote Sensing; Optics
GA BSS87
UT WOS:000285718100013
ER
PT B
AU Connor, TJ
Sangster, B
AF Connor, T. J.
Sangster, Ben
GP ACM
TI honeyM: A Framework for Implementing Virtual Honeyclients for Mobile
Devices
SO WISEC 10: PROCEEDINGS ON THE THIRD ACM CONFERENCE ON WIRELESS NETWORK
SECURITY
LA English
DT Proceedings Paper
CT 3rd ACM Conference on Wireless Network Security
CY MAR 22-24, 2010
CL Stevens Inst Technol, Hoboken, NJ
SP ACM SIGSAC
HO Stevens Inst Technol
DE Mobile Device Security; Information Assurance; Bluetooth; WiFi; GPS;
Wireless Security
AB This paper presents honeyM, a framework for deploying virtual mobile device honeyclients. Honeyclients provide the ability discover early warnings about novel attacks and exploitations and are typically deployed to protect wired infrastructure. In a wireless environment, honeyclients usually record attacks against the wireless access point. To identify attacks targeted specifically against mobile device users on wireless networks, we present honeyM. honeyM is a framework for virtual mobile honeyclients and contains a library of simulated mobile devices. honeyM emulates the wireless, Bluetooth, and GPS stacks of an actual mobile device in order to deceive mobile device fingerprinting tools. This paper discusses the design and framework for honeyM and demonstrates the necessity to provide a system to protect mobile users. In this paper, we implemented and evaluated the use of virtual honeyclients for mobile devices in two high risk environments, including a wireless security course and the DEFCON hacker conference.
C1 [Connor, T. J.] US Mil Acad, Informat Technol & Operat Ctr, West Point, NY 10996 USA.
RP Connor, TJ (reprint author), US Mil Acad, Informat Technol & Operat Ctr, West Point, NY 10996 USA.
NR 14
TC 0
Z9 0
U1 0
U2 1
PU ASSOC COMPUTING MACHINERY
PI NEW YORK
PA 1515 BROADWAY, NEW YORK, NY 10036-9998 USA
BN 978-1-60558-923-7
PY 2010
BP 129
EP 138
PG 10
WC Computer Science, Hardware & Architecture; Computer Science, Theory &
Methods
SC Computer Science
GA BPC74
UT WOS:000278534300017
ER
PT B
AU Arney, D
AF Arney, David
BE Baralt, J
Callaos, N
Chu, HW
Jastroch, N
Lesso, W
TI Communication Modeling: Geometric Model of Mindspace or a Romance
Language of Many Dimensions
SO WMSCI 2010: 14TH WORLD MULTI-CONFERENCE ON SYSTEMICS, CYBERNETICS AND
INFORMATICS, VOL III
LA English
DT Proceedings Paper
CT 14th World Multi-Conference on Systemics, Cybernetics and Informatics
CY JUN 29-JUL 02, 2010
CL Orlando, FL
SP Int Inst Informat & Syst
DE Mind; Cognition; Communication; Language; Model; Mathematics; Geometry
AB This paper describes a geometric model (called MSM) for the structures and processes of thinking, learning, deciding, and communicating by constructing and describing a virtual geometric space (mathematical model) of a notional mind. Mindspaces, like the one described, can be understood as workspaces of the mind and, therefore, this paper provides a glimpse of a hypothetical (virtual model of the) mind at work.
C1 [Arney, David] US Mil Acad, Dept Math Sci, West Point, PA 10996 USA.
RP Arney, D (reprint author), US Mil Acad, Dept Math Sci, West Point, PA 10996 USA.
NR 11
TC 0
Z9 0
U1 0
U2 0
PU INT INST INFORMATICS & SYSTEMICS
PI ORLANDO
PA 14269 LORD BARCLAY DR, ORLANDO, FL 32837 USA
BN 978-1-936338-00-9
PY 2010
BP 78
EP 83
PG 6
WC Computer Science, Cybernetics; Computer Science, Theory & Methods
SC Computer Science
GA BG7LA
UT WOS:000391417500015
ER
PT B
AU Barrows, A
Kucik, P
Skimmyhorn, W
Straigis, J
AF Barrows, Anne
Kucik, Paul
Skimmyhorn, William
Straigis, John
BE Baralt, J
Callaos, N
Chu, HW
Jastroch, N
Lesso, W
TI A Systems Analysis of the AQ Khan Network
SO WMSCI 2010: 14TH WORLD MULTI-CONFERENCE ON SYSTEMICS, CYBERNETICS AND
INFORMATICS, VOL III
LA English
DT Proceedings Paper
CT 14th World Multi-Conference on Systemics, Cybernetics and Informatics
CY JUN 29-JUL 02, 2010
CL Orlando, FL
SP Int Inst Informat & Syst
AB In this study, we apply the methods of engineering risk analysis to understand the structure of a nuclear proliferation network in order to defeat it. These methods are typically applied to engineering systems in order to assess the weaknesses in a system and determine the most cost-effective way to improve that system; instead, this analysis turns risk analysis on its head, as we seek to understand the uncertainties, dependencies, and redundancies that exist in the system in order to induce failure (or degradation).
In order to accomplish this goal, our team modeled the A.Q. Khan network as a supply chain in order to determine its weak points and possible ways to defeat the network. We then attempted to generalize our findings in order to apply them to future networks. Our report is based completely on our analysis of open source information.
C1 [Barrows, Anne] Sandia Natl Labs, Adv Syst Deployments, Livermore, CA 94550 USA.
[Kucik, Paul] US Mil Acad, Ctr Operat Res, West Point, NY 10996 USA.
[Skimmyhorn, William] US Mil Acad, Dept Social Sci, West Point, NY 10996 USA.
[Straigis, John] Lockheed Martin Space Syst, Syst Engn, Sunnyvale, CA 94085 USA.
RP Barrows, A (reprint author), Sandia Natl Labs, Adv Syst Deployments, Livermore, CA 94550 USA.
NR 9
TC 0
Z9 0
U1 0
U2 0
PU INT INST INFORMATICS & SYSTEMICS
PI ORLANDO
PA 14269 LORD BARCLAY DR, ORLANDO, FL 32837 USA
BN 978-1-936338-00-9
PY 2010
BP 306
EP 309
PG 4
WC Computer Science, Cybernetics; Computer Science, Theory & Methods
SC Computer Science
GA BG7LA
UT WOS:000391417500057
ER
PT S
AU Wilcox, P
Guicheteau, J
Christesen, S
AF Wilcox, Phillip
Guicheteau, Jason
Christesen, Steven
BE Champion, PM
Ziegler, LD
TI Spatially Offset Raman Spectroscopy for Chemical Detection in Porous
Surfaces
SO XXII INTERNATIONAL CONFERENCE ON RAMAN SPECTROSCOPY
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 22nd International Conference on Raman Spectroscopy
CY AUG 08-13, 2010
CL Boston, MA
SP NE Univ, Boston Univ & Photon Ctr, Horiba Sci, Thermo Sci, Bruker Opt
ID MEDIA
C1 [Wilcox, Phillip; Guicheteau, Jason; Christesen, Steven] USA, Edgewood Chem Biol Ctr, Aberdeen Proving Ground, MD 21010 USA.
RP Wilcox, P (reprint author), USA, Edgewood Chem Biol Ctr, Aberdeen Proving Ground, MD 21010 USA.
NR 5
TC 0
Z9 0
U1 1
U2 3
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0818-0
J9 AIP CONF PROC
PY 2010
VL 1267
BP 551
EP 552
DI 10.1063/1.3482671
PG 2
WC Physics, Applied
SC Physics
GA BQK65
UT WOS:000281210900294
ER
PT J
AU Poore, C
Clark, P
Emanuel, PA
AF Poore, Carrie
Clark, Paul
Emanuel, Peter A.
TI An evaluation of suspicious powder screening tools for first responders
SO JOURNAL OF HAZARDOUS MATERIALS
LA English
DT Article
DE Detection; Suspicious powders; Bio-threat agents; Biological weapons;
Field screening
AB Field screening tools are required which would allow first responders to quickly ascertain if a suspicious powder poses a potential threat necessitating additional testing for biological pathogens such as Bacillus anthracis. In this study, three commercially available generic screening technologies were evaluated for the effectiveness to accurately differentiate between a hoax powder and a true biological threat. The BioCheck(R) Kit was able to detect the following biological agents 1 x 10(8) CFU of B. anthracis Sterne (washed 4 times), 1 x 10(7) CFU of B. anthracis Delta Sterne (washed 2 times), 1 x 10(7) CFU of Yersinia pestis All 122, and 100 mu g of ricin. The PrimeAlert(TM) kit was able to detect 2 x 10(10) CFU of B. anthracis Delta Sterne 4x. 1 x 109 CFU of B. anthracis Delta Sterne 2 x, and 1 x 10(8) CFU of Y. pestis A1122. The Prime Alert(TM) kit was not able to detect ricin. The Profile(R)-1 kit was able to detect 1 x 10(4) CFU of B. anthracis Delta Sterne 4x and B. anthracis Delta Sterne 2x, and 1 x 10(6) CFU of Y. pestis A1122. The Profile(R)-1 kit was not able to detect ricin. All of the kits showed positive results for powders containing components specifically targeted by the particular technology being used. Each technology assessed in this evaluation employs a different mechanism for the detection of biological materials and it is important that first responders are aware of the strengths and the limitations of each system so that they can effectively employ the technology to protect the homeland.
C1 [Poore, Carrie; Clark, Paul; Emanuel, Peter A.] USA, Edgewood Chem Biol Ctr, Aberdeen Proving Ground, MD 21010 USA.
RP Poore, C (reprint author), USA, Edgewood Chem Biol Ctr, 5183 Blackhawk Rd, Aberdeen Proving Ground, MD 21010 USA.
EM Carrie.Poore@us.army.mil
FU Department of Homeland Security
FX The authors wish to acknowledge the contribution of Mary Wade for
technical consultations, and Todd Sickler, Jerry Pfarr, and Andrew Beck
for technical assistance. We would also like to acknowledge the
Department of Homeland Security for providing the funding to complete
this study. The Department of Homeland Security sponsored the production
of this material under an Interagency Agreement with the National
Institute of Standards and Technology.
NR 8
TC 6
Z9 6
U1 0
U2 6
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0304-3894
J9 J HAZARD MATER
JI J. Hazard. Mater.
PD DEC 30
PY 2009
VL 172
IS 2-3
BP 559
EP 565
DI 10.1016/j.jhazmat.2009.05.142
PG 7
WC Engineering, Environmental; Engineering, Civil; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 522EO
UT WOS:000271980800004
PM 19592160
ER
PT J
AU Moore, EW
Lee, S
Hickman, SA
Wright, SJ
Harrell, LE
Borbat, PP
Freed, JH
Marohn, JA
AF Moore, Eric W.
Lee, SangGap
Hickman, Steven A.
Wright, Sarah J.
Harrell, Lee E.
Borbat, Peter P.
Freed, Jack H.
Marohn, John A.
TI Scanned-probe detection of electron spin resonance from a nitroxide spin
probe
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE MRFM; ESR; TEMPAMINE; mechanically detected magnetic resonance;
molecular structure imaging
ID NUCLEAR-MAGNETIC-RESONANCE; LATTICE-RELAXATION RATES; FORCE MICROSCOPY;
CANTILEVERS; FLUCTUATIONS; PROTEINS; GRADIENT; DISTANCES; FRICTION;
SOLIDS
AB We report an approach that extends the applicability of ultrasensitive force-gradient detection of magnetic resonance to samples with spin-lattice relaxation times (T(1)) as short as a single cantilever period. To demonstrate the generality of the approach, which relies on detecting either cantilever frequency or phase, we used it to detect electron spin resonance from a T(1) = 1 ms nitroxide spin probe in a thin film at 4.2 K and 0.6 T. By using a custom-fabricated cantilever with a 4 mu m-diameter nickel tip, we achieve a magnetic resonance sensitivity of 400 Bohr magnetons in a 1 Hz bandwidth. A theory is presented that quantitatively predicts both the line-shape and the magnitude of the observed cantilever frequency shift as a function of field and cantilever-sample separation. Good agreement was found between nitroxide T(1)'s measured mechanically and inductively, indicating that the cantilever magnet is not an appreciable source of spin-lattice relaxation here. We suggest that the new approach has a number of advantages that make it well suited to push magnetic resonance detection and imaging of nitroxide spin labels in an individual macromolecule to single-spin sensitivity.
C1 [Moore, Eric W.; Lee, SangGap; Hickman, Steven A.; Wright, Sarah J.; Borbat, Peter P.; Freed, Jack H.; Marohn, John A.] Cornell Univ, Dept Chem & Chem Biol, Ithaca, NY 14853 USA.
[Harrell, Lee E.] US Mil Acad, Dept Phys, West Point, NY 10996 USA.
RP Marohn, JA (reprint author), Cornell Univ, Dept Chem & Chem Biol, Ithaca, NY 14853 USA.
EM jam99@cornell.edu
RI Borbat, Petr/A-8658-2014; borbat, peter/B-1616-2016
FU National Institutes of Health [5R01GM-070012]; National Center for
Research Resources Center [P41RR016292]; Army Research Office
MultiUniversity [W911NF-05-1-0403]; National Science Foundation
[ECS-0335765]
FX We acknowledge Doran Smith and the U. S. Army Research Laboratory
(Adelphi, MD) for their generous loan of the microwave source and
amplifier used here. We acknowledge Brian Crane and Barbara Baird for
helpful discussions on spin-labeling biomacromolecules. This work was
supported by National Institutes of Health Grant 5R01GM-070012 (to J. A.
M), National Center for Research Resources Center Grant P41RR016292 (to
J. H. F.), and the Army Research Office MultiUniversity Research
Initiative Grant W911NF-05-1-0403 (to J. A. M.). This work was performed
in part at the Cornell NanoScale Science and Technology Facility, a
member of the National Nanotechnology Infrastructure Network, which is
supported by National Science Foundation Grant ECS-0335765.
NR 38
TC 21
Z9 21
U1 0
U2 10
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0027-8424
J9 P NATL ACAD SCI USA
JI Proc. Natl. Acad. Sci. U. S. A.
PD DEC 29
PY 2009
VL 106
IS 52
BP 22251
EP 22256
DI 10.1073/pnas.0908120106
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 538IV
UT WOS:000273178700040
PM 20018707
ER
PT J
AU Tiberkevich, V
Slavin, A
Bankowski, E
Gerhart, G
AF Tiberkevich, Vasil
Slavin, Andrei
Bankowski, Elena
Gerhart, Grant
TI Phase-locking and frustration in an array of nonlinear spin-torque
nano-oscillators
SO APPLIED PHYSICS LETTERS
LA English
DT Article
DE frustration; microwave oscillators; microwave phase shifters; phase
locked oscillators
ID MAGNETIC MULTILAYER; POLARIZED CURRENT; EXCITATION; DRIVEN
AB We demonstrate that the cooperative dynamics of an array of coupled spin-torque nano-oscillators (STNO) can be controlled by introduction of an additional external phase shift beta(c) between microwave current, which couples STNOs, and microwave voltage on the array. When this external phase shift beta(c) compensates the intrinsic phase shift beta(0), caused by the STNO nonlinearity, a phase-locking regime with increased output power and vanishing inhomogeneous linewidth broadening is achieved. In the opposite case, when external and intrinsic phase shifts are added, the STNO array demonstrates a frustration regime with low output power and wide and noisy frequency spectrum.
C1 [Tiberkevich, Vasil; Slavin, Andrei] Oakland Univ, Dept Phys, Rochester, MI 48309 USA.
[Bankowski, Elena; Gerhart, Grant] USA, TARDEC, Warren, MI 48397 USA.
RP Tiberkevich, V (reprint author), Oakland Univ, Dept Phys, Rochester, MI 48309 USA.
EM tyberkev@oakland.edu
RI Tiberkevich, Vasil/A-8697-2008
OI Tiberkevich, Vasil/0000-0002-8374-2565
FU National Science Foundation of the USA [ECCS 0653901]; U.S. Army TARDEC,
RDECOM [W56HZW-09-P-L564]
FX We acknowledge support from the National Science Foundation of the USA
(Grant No. ECCS 0653901) and from the U.S. Army TARDEC, RDECOM (Contract
No. W56HZW-09-P-L564).
NR 18
TC 30
Z9 30
U1 4
U2 19
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD DEC 28
PY 2009
VL 95
IS 26
AR 262505
DI 10.1063/1.3278602
PG 3
WC Physics, Applied
SC Physics
GA 538XF
UT WOS:000273216900041
ER
PT J
AU Lemasson, BH
Anderson, JJ
Goodwin, RA
AF Lemasson, B. H.
Anderson, J. J.
Goodwin, R. A.
TI Collective motion in animal groups from a neurobiological perspective:
The adaptive benefits of dynamic sensory loads and selective attention
SO JOURNAL OF THEORETICAL BIOLOGY
LA English
DT Article
DE Collective behavior; Information; Decision-making; Retina; Vision;
Trafalgar effect
ID FISH SCHOOLS; DECISION-MAKING; EMERGENT PROPERTIES; SELFISH HERD;
RETINA; BEHAVIOR; INFORMATION; EVOLUTION; SIGNALS; SIMULATION
AB We explore mechanisms associated with collective animal motion by drawing on the neurobiological bases of sensory information processing and decision-making. The model uses simplified retinal processes to translate neighbor movement patterns into information through spatial signal integration and threshold responses. The structure provides a mechanism by which individuals can vary their sets of influential neighbors, a measure of an individual's sensory load. Sensory loads are correlated with group order and density, and we discuss their adaptive values in an ecological context. The model also provides a mechanism by which group members can identify, and rapidly respond to, novel visual stimuli. (C) 2009 Elsevier Ltd. All rights reserved.
C1 [Lemasson, B. H.; Anderson, J. J.] Univ Washington, Sch Aquat & Fishery Sci, Seattle, WA 98195 USA.
[Goodwin, R. A.] USA, Engineer R&D Ctr, Environm Lab, Portland, OR 97208 USA.
RP Lemasson, BH (reprint author), Univ Washington, Sch Aquat & Fishery Sci, Box 358218, Seattle, WA 98195 USA.
EM lemasson@u.washington.edu
FU U.S. Army's Network Science research initiative through the U. S. Army
Engineer Research & Development Center (ERDC) Environmental Quality &
Installations (EQ/I) Basic Research Program
FX The tests described and the resulting data presented here in, unless
otherwise noted, were obtained from research sponsored by the U.S.
Army's Network Science research initiative through the U. S. Army
Engineer Research & Development Center (ERDC) Environmental Quality &
Installations (EQ/I) Basic Research Program. We are grateful to James
Buchholz, Kevin Warburton, J.A.'s students, and two anonymous reviewers
for their constructive comments and questions. Co-PIs, Goodwin and
Anderson, would especially like to thank Todd Bridges and John Cullinane
of ERDC for the opportunity and support. Permission was granted by the
Chief of Engineers to publish this information.
NR 57
TC 21
Z9 22
U1 1
U2 34
PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
PI LONDON
PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
SN 0022-5193
EI 1095-8541
J9 J THEOR BIOL
JI J. Theor. Biol.
PD DEC 21
PY 2009
VL 261
IS 4
BP 501
EP 510
DI 10.1016/j.jtbi.2009.08.013
PG 10
WC Biology; Mathematical & Computational Biology
SC Life Sciences & Biomedicine - Other Topics; Mathematical & Computational
Biology
GA 559CW
UT WOS:000274799100001
PM 19699212
ER
PT J
AU Skyllingstad, ED
Paulson, CA
Perovich, DK
AF Skyllingstad, Eric D.
Paulson, Clayton A.
Perovich, Donald K.
TI Simulation of melt pond evolution on level ice
SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
LA English
DT Article
ID ARCTIC SEA-ICE; UPPER OCEAN; ALBEDO; GREENLAND; SUMMER
AB A melt pond model is presented that predicts pond size and depth changes, given an initial ice thickness field and representative surface fluxes. The model is based on the assumption that as sea ice melts, fresh water builds up in the ice pore space and eventually saturates the ice. Under these conditions, a water table is defined equal to the draft of the ice or sea level, and ponds are produced in ice surface depressions, much like lakes in a watershed. Pond evolution is forced by applying fluxes of heat at the pond surface and a radiative transfer model for solar radiation that penetrates the pond. Results from the model using forcing data from the Surface Heat Budget of the Arctic Ocean (SHEBA) experiment and representative pond parameters indicate that the model accurately simulates pond depth and fractional area over the summer melt season, with fractional area increasing linearly. Overall, ice albedo is affected primarily by the increase in pond coverage. Decrease in pond albedo from pond deepening has a much lower influence on the total albedo. Cases with predominately sunny conditions are shown to produce more rapid pond expansion than overcast cases. In both sunny and cloudy cases the fractional area increases linearly.
C1 [Skyllingstad, Eric D.; Paulson, Clayton A.] Oregon State Univ, Coll Ocean & Atmospher Sci, Corvallis, OR 97331 USA.
[Perovich, Donald K.] USA, Cold Reg Res & Engn Lab, Engineer Res & Dev Ctr, Hanover, NH 03755 USA.
RP Skyllingstad, ED (reprint author), Oregon State Univ, Coll Ocean & Atmospher Sci, Corvallis, OR 97331 USA.
EM skylling@coas.oregonstate.edu
FU National Science Foundation [ARC-0454867]
FX We are pleased to acknowledge the supercomputer time provided by the
National Center for Atmospheric Research, which is funded by the
National Science Foundation. We thank Scott Pegau for assistance with
the surface meteorological and flux data. We also thank the reviewers
for their very useful comments. This research was funded by the National
Science Foundation under grant ARC-0454867.
NR 24
TC 20
Z9 20
U1 0
U2 5
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-9275
EI 2169-9291
J9 J GEOPHYS RES-OCEANS
JI J. Geophys. Res.-Oceans
PD DEC 18
PY 2009
VL 114
AR C12019
DI 10.1029/2009JC005363
PG 15
WC Oceanography
SC Oceanography
GA 535CV
UT WOS:000272945100001
ER
PT J
AU Saini, J
Kovatich, A
Li, X
Bekash, A
Hooke, J
Mural, RJ
Shriver, CD
Hu, H
AF Saini, J.
Kovatich, A.
Li, X.
Bekash, A.
Hooke, J.
Mural, R. J.
Shriver, C. D.
Hu, H.
TI Association of Clinicopathologic Characteristics with IHC-Based Breast
Cancer Subtypes
SO CANCER RESEARCH
LA English
DT Meeting Abstract
CT 32nd Annual San Antonio Breast Cancer Symposium
CY DEC 09-13, 2009
CL San Antonio, TX
C1 Windber Res Inst, Windber, PA USA.
Walter Reed Army Med Ctr, Washington, DC 20307 USA.
MDR Global Syst, Windber, PA USA.
NR 0
TC 1
Z9 1
U1 0
U2 0
PU AMER ASSOC CANCER RESEARCH
PI PHILADELPHIA
PA 615 CHESTNUT ST, 17TH FLOOR, PHILADELPHIA, PA 19106-4404 USA
SN 0008-5472
J9 CANCER RES
JI Cancer Res.
PD DEC 15
PY 2009
VL 69
IS 24
SU 3
BP 635S
EP 636S
PG 2
WC Oncology
SC Oncology
GA 534TR
UT WOS:000272920701165
ER
PT J
AU Li, X
Hu, H
Shriver, CD
Mural, RJ
AF Li, X.
Hu, H.
Shriver, C. D.
Mural, R. J.
TI Microarray Data Analysis Using Peripheral Blood Samples Suggests
Differential Enrichment of Signaling Pathways between Breast Cancer
Patients and Normal Subjects.
SO CANCER RESEARCH
LA English
DT Meeting Abstract
CT 32nd Annual San Antonio Breast Cancer Symposium
CY DEC 09-13, 2009
CL San Antonio, TX
C1 Walter Reed Army Med Ctr, Washington, DC 20307 USA.
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER ASSOC CANCER RESEARCH
PI PHILADELPHIA
PA 615 CHESTNUT ST, 17TH FLOOR, PHILADELPHIA, PA 19106-4404 USA
SN 0008-5472
J9 CANCER RES
JI Cancer Res.
PD DEC 15
PY 2009
VL 69
IS 24
SU 3
BP 654S
EP 654S
PG 1
WC Oncology
SC Oncology
GA 534TR
UT WOS:000272920701221
ER
PT J
AU Bekash, A
Saini, J
Fan, X
Hooke, J
Mural, RJ
Shriver, CD
Hu, H
AF Bekash, A.
Saini, J.
Fan, X.
Hooke, J.
Mural, R. J.
Shriver, C. D.
Hu, H.
TI Differential Benign Breast Disease Co-Occurrence with Cancer in
Caucasian and African American Women
SO CANCER RESEARCH
LA English
DT Meeting Abstract
CT 32nd Annual San Antonio Breast Cancer Symposium
CY DEC 09-13, 2009
CL San Antonio, TX
C1 Windber Res Inst, Windber, PA USA.
Walter Reed Army Med Ctr, Washington, DC 20307 USA.
NR 0
TC 1
Z9 1
U1 0
U2 1
PU AMER ASSOC CANCER RESEARCH
PI PHILADELPHIA
PA 615 CHESTNUT ST, 17TH FLOOR, PHILADELPHIA, PA 19106-4404 USA
SN 0008-5472
J9 CANCER RES
JI Cancer Res.
PD DEC 15
PY 2009
VL 69
IS 24
SU 3
BP 667S
EP 667S
PG 1
WC Oncology
SC Oncology
GA 534TR
UT WOS:000272920701263
ER
PT J
AU Kvecher, L
Wu, W
Hooke, J
Shriver, CD
Mural, RJ
Hu, H
AF Kvecher, L.
Wu, W.
Hooke, J.
Shriver, C. D.
Mural, R. J.
Hu, H.
TI An Approach To Correlate the Temporal Information To Facilitate Specimen
Selection in the Breast Cancer Research Project
SO CANCER RESEARCH
LA English
DT Meeting Abstract
CT 32nd Annual San Antonio Breast Cancer Symposium
CY DEC 09-13, 2009
CL San Antonio, TX
C1 Windber Res Inst, Windber, PA USA.
Walter Reed Army Med Ctr, Washington, DC 20307 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER ASSOC CANCER RESEARCH
PI PHILADELPHIA
PA 615 CHESTNUT ST, 17TH FLOOR, PHILADELPHIA, PA 19106-4404 USA
SN 0008-5472
J9 CANCER RES
JI Cancer Res.
PD DEC 15
PY 2009
VL 69
IS 24
SU 3
BP 763S
EP 764S
PG 2
WC Oncology
SC Oncology
GA 534TR
UT WOS:000272920701546
ER
PT J
AU Clifton, GT
Holmes, JP
Perez, SA
Lorentz, D
Georgakopoulou, K
Benavides, LC
Gates, JD
Mittendorf, MA
Ardavanis, A
Gritzapis, AD
Ponniah, S
Papamichail, M
Peoples, GE
AF Clifton, G. T.
Holmes, J. P.
Perez, S. A.
Lorentz, D.
Georgakopoulou, K.
Benavides, L. C.
Gates, J. D.
Mittendorf, M. A.
Ardavanis, A.
Gritzapis, A. D.
Ponniah, S.
Papamichail, M.
Peoples, G. E.
TI Interim Analysis of a Randomized Phase II Study of the Novel HER2/Neu
Peptide (GP2) Vaccine To Prevent Breast Cancer Recurrence: United States
Military Cancer Institute Clinical Trials Group Study I-05
SO CANCER RESEARCH
LA English
DT Meeting Abstract
CT 32nd Annual San Antonio Breast Cancer Symposium
CY DEC 09-13, 2009
CL San Antonio, TX
C1 Brooke Army Med Ctr, Ft Sam Houston, TX 78234 USA.
St Savas Canc Hosp, Athens, Greece.
Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA.
Naval Med Ctr, San Diego, CA USA.
Univ Texas Houston, MD Anderson Canc Ctr, Houston, TX 77030 USA.
NR 0
TC 1
Z9 1
U1 0
U2 0
PU AMER ASSOC CANCER RESEARCH
PI PHILADELPHIA
PA 615 CHESTNUT ST, 17TH FLOOR, PHILADELPHIA, PA 19106-4404 USA
SN 0008-5472
J9 CANCER RES
JI Cancer Res.
PD DEC 15
PY 2009
VL 69
IS 24
SU 3
BP 802S
EP 802S
PG 1
WC Oncology
SC Oncology
GA 534TR
UT WOS:000272920702069
ER
PT J
AU Shay, M
Duman, J
Eberly, S
Christiansen, R
Hu, H
Shriver, CD
AF Shay, M.
Duman, J.
Eberly, S.
Christiansen, R.
Hu, H.
Shriver, C. D.
TI Converting Paper Medical Records to Electronic Version To Support Breast
Cancer Translational Research and Clinical Practice.
SO CANCER RESEARCH
LA English
DT Meeting Abstract
CT 32nd Annual San Antonio Breast Cancer Symposium
CY DEC 09-13, 2009
CL San Antonio, TX
C1 CTC, Johnstown, PA USA.
Natl Interest Secur Co LLC, Fairfax, VA USA.
Windber Res Inst, Windber, PA USA.
Walter Reed Army Med Ctr, Washington, DC 20307 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER ASSOC CANCER RESEARCH
PI PHILADELPHIA
PA 615 CHESTNUT ST, 17TH FLOOR, PHILADELPHIA, PA 19106-4404 USA
SN 0008-5472
J9 CANCER RES
JI Cancer Res.
PD DEC 15
PY 2009
VL 69
IS 24
SU 3
BP 806S
EP 807S
PG 2
WC Oncology
SC Oncology
GA 534TR
UT WOS:000272920702082
ER
PT J
AU Ellsworth, RE
Weyandt, JD
Fantacone-Campbell, JL
Deyarmin, B
Ellsworth, DL
Hooke, JA
Shriver, CD
AF Ellsworth, R. E.
Weyandt, J. D.
Fantacone-Campbell, J. L.
Deyarmin, B.
Ellsworth, D. L.
Hooke, J. A.
Shriver, C. D.
TI Genetic Characterization of Columnar Cellular Lesions and Atypical
Ductal Hyperplasia of the Breast
SO CANCER RESEARCH
LA English
DT Meeting Abstract
CT 32nd Annual San Antonio Breast Cancer Symposium
CY DEC 09-13, 2009
CL San Antonio, TX
C1 Henry M Jackson Fdn, Windber, PA USA.
Windber Res Inst, Windber, PA USA.
Walter Reed Army Med Ctr, Washington, DC 20307 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER ASSOC CANCER RESEARCH
PI PHILADELPHIA
PA 615 CHESTNUT ST, 17TH FLOOR, PHILADELPHIA, PA 19106-4404 USA
SN 0008-5472
J9 CANCER RES
JI Cancer Res.
PD DEC 15
PY 2009
VL 69
IS 24
SU 3
BP 817S
EP 817S
PG 1
WC Oncology
SC Oncology
GA 534TR
UT WOS:000272920702115
ER
PT J
AU Ellsworth, RE
Seeley, EH
Ellsworth, DL
Deyarmin, B
Hooke, JA
Sanders, M
Caprioli, R
Shriver, CD
Henry, M
AF Ellsworth, R. E.
Seeley, E. H.
Ellsworth, D. L.
Deyarmin, B.
Hooke, J. A.
Sanders, M.
Caprioli, R.
Shriver, C. D.
Henry, M.
TI Proteomic Discrimination of Well- from Poorly-Differentiated Breast
Carcinomas.
SO CANCER RESEARCH
LA English
DT Meeting Abstract
CT 32nd Annual San Antonio Breast Cancer Symposium
CY DEC 09-13, 2009
CL San Antonio, TX
C1 Jackson Fdn Advancement Mil Med, Windber, PA USA.
Vanderbilt Univ, Med Ctr, Nashville, TN USA.
Windber Res Inst, Windber, PA USA.
Walter Reed Army Med Ctr, Washington, DC 20307 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER ASSOC CANCER RESEARCH
PI PHILADELPHIA
PA 615 CHESTNUT ST, 17TH FLOOR, PHILADELPHIA, PA 19106-4404 USA
SN 0008-5472
J9 CANCER RES
JI Cancer Res.
PD DEC 15
PY 2009
VL 69
IS 24
SU 3
BP 865S
EP 865S
PG 1
WC Oncology
SC Oncology
GA 534TR
UT WOS:000272920702249
ER
PT J
AU Iida, J
Nesbella, M
Lehman, J
Mural, RJ
Shriver, CD
AF Iida, J.
Nesbella, M.
Lehman, J.
Mural, R. J.
Shriver, C. D.
TI Role for CD44 in Enhancing Invasion, Migration, and Growth of Triple
Negative (TN) Breast Cancer Cells
SO CANCER RESEARCH
LA English
DT Meeting Abstract
CT 32nd Annual San Antonio Breast Cancer Symposium
CY DEC 09-13, 2009
CL San Antonio, TX
C1 Windber Res Inst, Windber, PA USA.
Walter Reed Army Med Ctr, Washington, DC 20307 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER ASSOC CANCER RESEARCH
PI PHILADELPHIA
PA 615 CHESTNUT ST, 17TH FLOOR, PHILADELPHIA, PA 19106-4404 USA
SN 0008-5472
J9 CANCER RES
JI Cancer Res.
PD DEC 15
PY 2009
VL 69
IS 24
SU 3
BP 876S
EP 876S
PG 1
WC Oncology
SC Oncology
GA 534TR
UT WOS:000272920702282
ER
PT J
AU Bannon, DI
Drexler, JW
Fent, GM
Casteel, SW
Hunter, PJ
Brattin, WJ
Major, MA
AF Bannon, Desmond I.
Drexler, John W.
Fent, Genevieve M.
Casteel, Stan W.
Hunter, Penelope J.
Brattin, William J.
Major, Michael A.
TI Evaluation of Small Arms Range Soils for Metal Contamination and Lead
Bioavailability
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID RELATIVE BIOAVAILABILITY; SHOOTING RANGE; BULLETS; SWINE; RISK; SITE
AB Although small arms ranges are known to be contaminated with lead, the full extent of metal contamination has not been described, nor has the oral bioavailability of lead in these soils. In this work, soil samples from ranges with diverse geochemical backgrounds were sieved to <250 mu m and analyzed for total metal content. Soils had consistently high levels of lead and copper, ranging from 4549 to 24 484 mu g/g and 223 to 2936 mu g/g, respectively, while arsenic, antimony, nickel, and zinc concentrations were 100-fold lower. For lead bioavailability measurements, two widely accepted methods were used: an in vivo juvenile swine relative bioavailability method measuring lead absorption from ingested soils relative to equivalent lead acetate concentrations and an in vitro bioaccessibility procedure which measured acid-extractable lead as a percent of total lead in the soil. For eight samples, the mean relative bioavailability and bioaccessibility of lead for the eight soils was about 100% (108 +/- 18% and 95 +/- 6%, respectively) showing good agreement between both methods. Risk assessment and/or remediation of small arms ranges should therefore assume high bioavailability of lead.
C1 [Bannon, Desmond I.; Drexler, John W.; Fent, Genevieve M.; Casteel, Stan W.; Hunter, Penelope J.; Brattin, William J.; Major, Michael A.] USA, Ctr Hlth Promot & Prevent Med, Directorate Toxicol, Aberdeen Proving Ground, MD 21010 USA.
RP Bannon, DI (reprint author), USA, Ctr Hlth Promot & Prevent Med, Directorate Toxicol, Aberdeen Proving Ground, MD 21010 USA.
EM desmond.bannon@us.army.mil
FU Environmental Security Technology Certification Program (ESTCP)
FX Funding for this work was provided by the Environmental Security
Technology Certification Program (ESTCP), a DoD program that promotes
innovative cost-effective technologies at DoD sites. D.B. acknowledges
Andrea Leeson (ESTCP), Gunda Reddy, Mark Johnson, Larry Tannenbaum, and
Keith Hoddinott (all DoD) for helpful advice and comments. The comments
of three anonymous reviewers improved the quality of the manuscript.
NR 26
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U1 6
U2 34
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD DEC 15
PY 2009
VL 43
IS 24
BP 9071
EP 9076
DI 10.1021/es901834h
PG 6
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 528QU
UT WOS:000272462500008
PM 20000496
ER
PT J
AU Kholod, YA
Muratov, EN
Gorb, LG
Hill, FC
Artemenko, AG
Kuz'min, VE
Qasim, M
Leszczynski, J
AF Kholod, Yana A.
Muratov, Eugene N.
Gorb, Leonid G.
Hill, Frances C.
Artemenko, Anatoly G.
Kuz'min, Victor E.
Qasim, Mohammad
Leszczynski, Jerzy
TI Application of Quantum Chemical Approximations to Environmental
Problems: Prediction of Water Solubility for Nitro Compounds
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID GAUSSIAN-BASIS SETS; AQUEOUS SOLUBILITY; ALKALINE-HYDROLYSIS;
MICROBIAL-DEGRADATION; SCREENING MODEL; REAL SOLVENTS; ATOMS LI;
COSMO-RS; CL-20; EXPLOSIVES
AB Water solubility values for 27 nitro compounds with experimentally measured values were computed using the conductor-like screening model for real solvent (COSMO-RS) based on the density functional theory and COSMO technique. We have found that the accuracy of the COSMO-RS approach for prediction of water solubility of liquid nitro compounds is impressively high (the errors are lower than 0.1 LU). However, for some solid nitro compounds, especially nitramines, there is sufficient disagreement between calculated and experimental values. In order to increase the accuracy of predictions the quantitative structure-property relationship (QSPR) part of the COSMO-RS by the modified COSMO-RS method have shown much better agreement with the experimental values (the mean absolute errors are lower than 0.5 LU). Furthermore, this technique has been used for prediction of water solubility for an expanded set of 23 nitro compounds including nitroaromatic, nitramines, nitroanisoles, nitrogen rich compounds, and some their nitroso and amino derivatives with unknown experimental values. The solubility values predicted using the proposed computational technique could be useful for the determination of the environmental fate of military and industrial wastes and the development of remediation strategies for contaminated soils and waters. This predictive capability is especially important for unstable compounds and for compounds that have yet to be synthesized.
C1 [Kholod, Yana A.; Muratov, Eugene N.; Leszczynski, Jerzy] Jackson State Univ, Dept Chem, Interdisciplinary Ctr Nanotox, Jackson, MS 39217 USA.
[Hill, Frances C.; Qasim, Mohammad; Leszczynski, Jerzy] USA, Erdc, Vicksburg, MS 39180 USA.
[Muratov, Eugene N.; Artemenko, Anatoly G.; Kuz'min, Victor E.] Natl Acad Sci Ukraine, Lab Theoret Chem, Dept Mol Struct, AV Bogatsky Phys & Chem Inst, Odessa, Ukraine.
SpecPro Inc, Huntsville, AL 35805 USA.
RP Leszczynski, J (reprint author), Jackson State Univ, Dept Chem, Interdisciplinary Ctr Nanotox, Jackson, MS 39217 USA.
EM jerzy@ccmsi.us
RI Muratov, Eugene/C-4454-2014
OI Muratov, Eugene/0000-0003-4616-7036
FU U.S. Army Engineer Research and Development Center (ERDC) [BT25-08-41]
FX The support by the Basic Research Project BT25-08-41 grant from the U.S.
Army Engineer Research and Development Center (ERDC) is acknowledged.
Permission was granted by the Chief of Engineers to publish this
information. The findings of this report are not to be construed as an
official Department of the Army position unless so designated by other
authorized documents. We are thankful to Dr. Andreas Klarnt and Dr.
Frank Eckert from COSMOlogic GmbH & Co KG for providing the information
for the training set compounds and enlightening discussions of the
COSMO-RS theory.
NR 48
TC 15
Z9 15
U1 2
U2 18
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD DEC 15
PY 2009
VL 43
IS 24
BP 9208
EP 9215
DI 10.1021/es902566b
PG 8
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 528QU
UT WOS:000272462500029
PM 20000511
ER
PT J
AU Weintrob, AC
Grandits, GA
Agan, BK
Ganesan, A
Landrum, ML
Crum-Cianflone, NF
Johnson, EN
Ordonez, CE
Wortmann, GW
Marconi, VC
AF Weintrob, Amy C.
Grandits, Greg A.
Agan, Brian K.
Ganesan, Anuradha
Landrum, Michael L.
Crum-Cianflone, Nancy F.
Johnson, Erica N.
Ordonez, Claudia E.
Wortmann, Glenn W.
Marconi, Vincent C.
CA IDCRP HIV Working Grp
TI Virologic Response Differences Between African Americans and European
Americans Initiating Highly Active Antiretroviral Therapy With Equal
Access to care
SO JAIDS-JOURNAL OF ACQUIRED IMMUNE DEFICIENCY SYNDROMES
LA English
DT Article
DE virologic response; HIV HAART; ethnicity; African Americans; European
Americans
ID SELF-REPORTED ADHERENCE; HIV-1 INFECTION; HIV-1-INFECTED PATIENTS;
LYMPHOCYTE COUNTS; MILITARY COHORT; REGIMENS; EFAVIRENZ; FAILURE; RISK;
PHARMACOGENETICS
AB Objective: Studies comparing virologic response to highly active antiretroviral therapy (HAART) between African Americans (AA) and European Americans (EA) have been confounded by differences in duration of HIV infection and access to health care. We evaluated virologic response to HAART between ethnicities in a large cohort with fewer confounders.
Methods: The odds of attaining viral suppression at 6- and 12-months post-HAART were determined by multivariate logistic regression for HIV infected AA and EA prospectively followed in a large US military cohort. Time-to-event methods were used to compare maintenance of suppression.
Results: A total of 1363 subjects (51% AA, 92% men) with viral load results available 6 months after HAART initiation were included. There was no difference. between ethnicities in time from seroconversion to HIV diagnosis or HAART initiation or in HAART regimens. Adjusted for multiple demographic and HIV-related factors, AA had significantly lower odds of obtaining undetectable viral loads after 6 (odds ratio 0.6, 95% confidence interval 0.4-0.8, P < 0.001) and 12 months (odds ratio 0.6, 95% confidence interval 0.4-0.8, P = 0.002) of HAART Once undetectable, there was no difference in time to virologic failure between AA and EA.
Conclusions: Despite similar durations of HIV infection and equal access to health care, AAs were significantly less likely to achieve viral suppression compared with EA.
C1 [Weintrob, Amy C.; Wortmann, Glenn W.] Walter Reed Army Med Ctr, Infect Dis Serv, Washington, DC 20307 USA.
[Weintrob, Amy C.; Grandits, Greg A.; Agan, Brian K.; Ganesan, Anuradha; Landrum, Michael L.; Crum-Cianflone, Nancy F.; Johnson, Erica N.; Wortmann, Glenn W.; Marconi, Vincent C.] Uniformed Serv Univ Hlth Sci, Infect Dis Clin Res Program, Bethesda, MD 20814 USA.
[Grandits, Greg A.] Univ Minnesota, Div Biostat, Minneapolis, MN USA.
[Ganesan, Anuradha] Natl Naval Med Ctr, Infect Dis Serv, Bethesda, MD USA.
[Landrum, Michael L.; Johnson, Erica N.; Marconi, Vincent C.] San Antonio Mil Med Ctr, Infect Dis Serv, San Antonio, TX USA.
[Crum-Cianflone, Nancy F.] USN, San Diego Med Ctr, Infect Dis Serv, San Diego, CA 92152 USA.
RP Weintrob, AC (reprint author), Walter Reed Army Med Ctr, Infect Dis Serv, 6900 Georgia Ave NW,Bldg 2,Ward 63,Room 6312, Washington, DC 20307 USA.
EM Amy.Weintrob@amedd.army.mil
RI Marconi, Vincent/N-3210-2014;
OI Marconi, Vincent/0000-0001-8409-4689; Agan, Brian/0000-0002-5114-1669
FU Uniformed Services University of the Health Sciences; IDCRP; Henry M.
Jackson Foundation for the Advancement of Military Medicine;
HHS/NIH/NIAID/DCR [HU0001-05-2-0011]
FX Supported by Infectious Disease Clinical Research Program of the
Uniformed Services University of the Health Sciences. The IDCRP is a
Department of Defense tri-service program executed through Uniformed
Services University of the Health Sciences and the Henry M. Jackson
Foundation for the Advancement of Military Medicine, in collaboration
with HHS/NIH/NIAID/DCR through Interagency Agreement HU0001-05-2-0011.
The opinions or assertions contained herein are the private views of the
authors, and are not to be construed as official, or as reflecting the
views of the Departments of the Army, Navy, Air Force, or the Department
of Defense. The authors have no commercial or other association that
might pose a conflict of interest.
NR 30
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Z9 47
U1 0
U2 1
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 1525-4135
J9 JAIDS-J ACQ IMM DEF
JI JAIDS
PD DEC 15
PY 2009
VL 52
IS 5
BP 574
EP 580
PG 7
WC Immunology; Infectious Diseases
SC Immunology; Infectious Diseases
GA 526SO
UT WOS:000272314100007
PM 19755913
ER
PT J
AU Severson, KM
Mallozzi, M
Bozue, J
Welkos, SL
Cote, CK
Knight, KL
Driks, A
AF Severson, Kari M.
Mallozzi, Michael
Bozue, Joel
Welkos, Susan L.
Cote, Christopher K.
Knight, Katherine L.
Driks, Adam
TI Roles of the Bacillus anthracis Spore Protein ExsK in Exosporium
Maturation and Germination
SO JOURNAL OF BACTERIOLOGY
LA English
DT Article
ID IMMUNODOMINANT PROTEIN; CEREUS SPORES; L-ALANINE; SUBTILIS; COAT;
TRANSGLUTAMINASE; ENDOSPORES; SURFACE; IDENTIFICATION; LOCALIZATION
AB The Bacillus anthracis spore is the causative agent of the disease anthrax. The outermost structure of the B. anthracis spore, the exosporium, is a shell composed of approximately 20 proteins. The function of the exosporium remains poorly understood and is an area of active investigation. In this study, we analyzed the previously identified but uncharacterized exosporium protein ExsK. We found that, in contrast to other exosporium proteins, ExsK is present in at least two distinct locations, i.e., the spore surface as well as a more interior location underneath the exosporium. In spores that lack the exosporium basal layer protein ExsFA/BxpB, ExsK fails to encircle the spore and instead is present at only one spore pole, indicating that ExsK assembly to the spore is partially dependent on ExsFA/BxpB. In spores lacking the exosporium surface protein BclA, ExsK fails to mature into high-molecular-mass species observed in wild-type spores. These data suggest that the assembly and maturation of ExsK within the exosporium are dependent on ExsFA/BxpB and BclA. We also found that ExsK is not required for virulence in murine and guinea pig models but that it does inhibit germination. Based on these data, we propose a revised model of exosporium maturation and assembly and suggest a novel role for the exosporium in germination.
C1 [Severson, Kari M.; Mallozzi, Michael; Knight, Katherine L.; Driks, Adam] Loyola Univ, Med Ctr, Dept Microbiol & Immunol, Maywood, IL 60153 USA.
[Bozue, Joel; Welkos, Susan L.; Cote, Christopher K.] USA, Med Res Inst Infect Dis, Bacteriol Div, Frederick, MD 21702 USA.
RP Driks, A (reprint author), Loyola Univ, Med Ctr, Dept Microbiol & Immunol, 2160 S 1st Ave,Bldg 105,Rm 3820, Maywood, IL 60153 USA.
EM adriks@lumc.edu
FU National Institutes of Health [AI050260]; U.S. Army Medical Research and
Materiel Command [1.1A0010-07.RDB]; RDB; Department of the Army [92489]
FX This work was supported by grant AI050260 from the National Institutes
of Health (K. L. K.); by the Medical Biological Defense Research
Program, U. S. Army Medical Research and Materiel Command, project
1.1A0010-07. RDB (USAMRIID) (S. L. W.); and by an in-house laboratory
innovative research award from the Department of the Army under project
92489 (J.B.).
NR 54
TC 26
Z9 27
U1 0
U2 11
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0021-9193
J9 J BACTERIOL
JI J. Bacteriol.
PD DEC 15
PY 2009
VL 191
IS 24
BP 7587
EP 7596
DI 10.1128/JB.01110-09
PG 10
WC Microbiology
SC Microbiology
GA 522WI
UT WOS:000272030400022
PM 19837802
ER
PT J
AU Bock, CW
Larkin, JD
Hirsch, SS
Wright, JB
AF Bock, Charles W.
Larkin, Joseph D.
Hirsch, Stephen S.
Wright, J. B.
TI Nucleophilic destruction of organophosphate toxins: A computational
investigation
SO JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM
LA English
DT Article
DE Organophosphorus (OP) compounds; Sarin; Wright-type reaction mechanism;
Density functional theory; o-Iodosobenzoic acid (IBA); Thermochemistry
ID PHOSPHORUS ACID DERIVATIVES; BASIS-SET; ALKALINE-HYDROLYSIS; REACTION
PATHWAYS; ENERGY BARRIERS; PHOSPHOTRIESTERASE; SUBSTITUTION; PHOSPHATES;
CLEAVAGE; KINETICS
AB Computed reaction enthalpies, free energies, and activation barriers in vacua are presented for the nucleophilic detoxification of the organophosphorus compounds (H)(H-O)P(=O)F, (H)(H3C-O)P(=O)F and (H3C)(CH(CH3)(2)-O)P(=O)F via the reaction R-1-OH + (R-2)(R-3-O)P(=O)F -> (R-2)(R-3-O)P(=O)(O-R-1) + H-F for a wide variety of R-1-OH nucleophiles. Density functional theory at the B3LYP/6-311++G(d,p) computational level was employed for all the calculations. A multi-step Wright-type reaction mechanism [J. B. Wright, W.E. White, J. Mol. Struct. (THEOCHEM) 454 (1998) 259], which proceeds via a proton transfer from the nucleophile to the fluorine atom through the phosphinyl oxygen atom, was consistently found to have a lower activation barrier in the gas-phase than for the corresponding mechanism that operates via a proton transfer from the nucleophile directly to the fluorine atom. Of the nucleophilic agents investigated, peroxybenzoic acid and o-iodosobenzoic acid had the lowest classical activation barrier for the Wright-type mechanism. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Bock, Charles W.] Philadelphia Univ, Dept Chem & Biochem, LEHP, Philadelphia, PA 19144 USA.
[Bock, Charles W.] Philadelphia Univ, Dept Chem & Biochem, Sch Sci & Hlth, Philadelphia, PA 19144 USA.
[Larkin, Joseph D.] Bloomsburg Univ Penn, Dept Chem, Bloomsburg, PA 17815 USA.
[Wright, J. B.] USA, Natick Soldier Res Dev & Engn Ctr, Natick, MA 01760 USA.
RP Bock, CW (reprint author), Philadelphia Univ, Dept Chem & Biochem, LEHP, Philadelphia, PA 19144 USA.
EM bockc@philau.edu
FU Department of Defense, Philadelphia University [W911QY-04-1-0001];
Laboratory for Engineered Human Protection (LEHP)
FX This work was supported by the Department of Defense under Contract No.
W911QY-04-1-0001 with Philadelphia University, the Laboratory for
Engineered Human Protection (LEHP) and was administered by the U.S. Army
Natick Soldier Research, Development and Engineering Center (NSRDEC),
Natick, MA, USA. The authors also thank Dr. John Walker (NSRDEC) for
useful discussions.
NR 32
TC 4
Z9 5
U1 1
U2 4
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0166-1280
J9 J MOL STRUC-THEOCHEM
JI Theochem-J. Mol. Struct.
PD DEC 15
PY 2009
VL 915
IS 1-3
BP 11
EP 19
DI 10.1016/j.theochem.2009.07.048
PG 9
WC Chemistry, Physical
SC Chemistry
GA 522AI
UT WOS:000271968400002
ER
PT J
AU Beck, Z
Brown, BK
Wieczorek, L
Peachman, KK
Matyas, GR
Polonis, VR
Rao, M
Alving, CR
AF Beck, Zoltan
Brown, Bruce K.
Wieczorek, Lindsay
Peachman, Kristina K.
Matyas, Gary R.
Polonis, Victoria R.
Rao, Mangala
Alving, Carl R.
TI Human Erythrocytes Selectively Bind and Enrich Infectious HIV-1 Virions
SO PLOS ONE
LA English
DT Article
ID IMMUNODEFICIENCY-VIRUS TYPE-1; DUFFY ANTIGEN RECEPTOR; RED-BLOOD-CELLS;
T-CELLS; NEUTRALIZING ANTIBODIES; AIDS SUSCEPTIBILITY; DISEASE
PROGRESSION; AFRICAN-AMERICANS; HUMORAL IMMUNITY; HEPARAN-SULFATE
AB Although CD4(+) cells represent the major target for HIV infection in blood, claims of complement-independent binding of HIV-1 to erythrocytes and the possible role of Duffy blood group antigen, have generated controversy. To examine the question of binding to erythrocytes, HIV-1 was incubated in vitro with erythrocytes from 30 healthy leukapheresis donors, and binding was determined by p24 analysis and adsorption of HIV-1 with reduction of infectivity for CD4(+) target cells. All of the cells, regardless of blood group type, bound HIV-1 p24. A typical preparation of erythrocytes bound <2.4% of the added p24, but erythrocytes selectively removed essentially all of the viral infectivity as determined by decreased infection of CD4(+) target cells; however, cell-associated HIV-1 was approximately 100-fold more efficient, via trans infection, than unadsorbed virus for infection of CD4(+) cells. All of the bound HIV-1 p24 was released by treatment of the cells with EDTA, and binding was optimized by adding Ca2+ and Mg2+ during the washing of erythrocytes containing bound HIV-1. Although the small number of contaminating leukocytes in the erythrocyte preparation also bound HIV-1 p24, there was no significant binding to CD4, and it thus appears that the binding occurred on leukocytes at non-CD4 sites. Furthermore, binding occurred to erythrocyte ghosts from which contaminating leukocytes had been previously removed. The results demonstrate that erythrocytes incubated in vitro with HIV-1 differentially adsorb all of the infectious HIV-1 virions (as opposed to non-infectious or degraded virions) in the absence of complement and independent of blood group, and binding is dependent on divalent cations. By analogy with HIV-1 bound to DC-SIGN on dendritic cells, erythrocyte-bound HIV-1 might comprise an important surface reservoir for trans infection of permissive cells.
C1 [Beck, Zoltan; Brown, Bruce K.; Wieczorek, Lindsay; Peachman, Kristina K.; Matyas, Gary R.; Polonis, Victoria R.; Rao, Mangala; Alving, Carl R.] Walter Reed Army Inst Res, US Mil HIV Res Program, Div Retrovirol, Rockville, MD USA.
[Beck, Zoltan; Brown, Bruce K.; Wieczorek, Lindsay; Peachman, Kristina K.] Henry M Jackson Fdn Advancement Mil Med, Rockville, MD USA.
RP Beck, Z (reprint author), Walter Reed Army Inst Res, US Mil HIV Res Program, Div Retrovirol, Rockville, MD USA.
EM calving@hivresearch.org
OI Matyas, Gabor/0000-0002-3212-9963
FU Henry M. Jackson Foundation [W81XWH-07-2-0067]; U.S. Army Medical
Research and Material Command [W81XWH-07-2-0067]
FX This work was supported through Cooperative Agreement contract no.
W81XWH-07-2-0067 between the Henry M. Jackson Foundation for the
Advancement of Military Medicine and the U.S. Army Medical Research and
Material Command. The funders had no role in study design, data
collection and analysis, decision to publish, or preparation of the
manuscript.
NR 41
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U1 0
U2 0
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD DEC 14
PY 2009
VL 4
IS 12
AR e8297
DI 10.1371/journal.pone.0008297
PG 8
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 533NI
UT WOS:000272830300045
PM 20011536
ER
PT J
AU Hooper, JW
Ferro, AM
Golden, JW
Silvera, P
Dudek, J
Alterson, K
Custer, M
Rivers, B
Morris, J
Owens, G
Smith, JF
Kamrud, KI
AF Hooper, Jay W.
Ferro, Anthony M.
Golden, Joseph W.
Silvera, Peter
Dudek, Jeanne
Alterson, Kim
Custer, Max
Rivers, Bryan
Morris, John
Owens, Gary
Smith, Jonathan F.
Kamrud, Kurt I.
TI Molecular smallpox vaccine delivered by alphavirus replicons elicits
protective immunity in mice and non-human primates
SO VACCINE
LA English
DT Article
DE Vaccinia; Smallpox; Vaccine; Non-human primate; Alphavirus replicon;
Neutralizing antibodies; Monkeypox
ID EQUINE ENCEPHALITIS-VIRUS; INTRANASAL POXVIRUS CHALLENGE; MAJOR ENVELOPE
PROTEINS; OUTER-MEMBRANE PROTEINS; 2 INFECTIOUS FORMS; NEUTRALIZING
ANTIBODIES; DNA VACCINE; GUINEA-PIGS; RESPIRATORY CHALLENGE;
MONOCLONAL-ANTIBODIES
AB Naturally occurring smallpox was eradicated as a result of successful vaccination campaigns during the 1960s and 1970s. Because of its highly contagious nature and high mortality rate, smallpox has significant potential as a biological weapon. Unfortunately, the current vaccine for orthopoxviruses is contraindicated for large portions of the population. Thus, there is a need for new, safe, and effective orthopoxvirus vaccines. Alphavirus replicon vectors, derived from strains of Venezuelan equine encephalitis virus, are being used to develop alternatives to the current smallpox vaccine. Here, we demonstrated that virus-like replicon particles (VRPs) expressing the vaccinia virus A33R, B5R, A27L, and L1R genes elicited protective immunity in mice comparable to vaccination with live-vaccinia virus. Furthermore, cynomolgus macaques vaccinated with a combination of the four poxvirus VRPs (4pox-VRP) developed antibody responses to each antigen. These antibody responses were able to neutralize and inhibit the spread of both vaccinia virus and monkeypox virus. Macaques vaccinated with 4pox-VRP, flu HA VRP (negative control), or live-vaccinia virus (positive control) were challenged intravenously with 5 x 10(6) pfu of monkeypox virus 1 month after the second VRP vaccination. Four of the six negative control animals succumbed to monkeypox and the remaining two animals demonstrated either severe or grave disease. Importantly, all 10 macaques vaccinated with the 4pox-VRP vaccine survived without developing severe disease. These findings revealed that a single-boost VRP smallpox vaccine shows promise as a safe alternative to the currently licensed live-vaccinia virus smallpox vaccine. Published by Elsevier Ltd.
C1 [Hooper, Jay W.; Ferro, Anthony M.; Golden, Joseph W.] USA, Med Res Inst Infect Dis, Div Virol, Ft Detrick, MD 21702 USA.
[Silvera, Peter] So Res Inst, Frederick, MD 21701 USA.
[Dudek, Jeanne] Life Technl Corp, Cellular Syst Div, Madison, WI USA.
[Alterson, Kim; Custer, Max; Rivers, Bryan; Morris, John; Owens, Gary; Smith, Jonathan F.; Kamrud, Kurt I.] Alphavax Inc, Res Triangle Pk, NC 27709 USA.
RP Hooper, JW (reprint author), USA, Med Res Inst Infect Dis, Div Virol, 1425 Porter St, Ft Detrick, MD 21702 USA.
EM jay.hooper@amedd.army.mil
OI Hooper, Jay/0000-0002-4475-0415
FU NIH [5-UC1-AI067183-02]; DTRA [YY0001_07_RD_PP_B]; [1UC1-AI067183-02];
[Y1-AI-2663-01]
FX We thank Neil Coffield, Christin Kiesner, Matthew Joselyn, and Andrew
Wells for expert technical assistance. We also thank Diana Fisher for
help with the statistical analysis. Housing and care of animals was
carried out in accordance with the American Association for
Accreditation of Laboratory Animals Animal Care standards. The research
described herein was supported by NIH grant 5-UC1-AI067183-02, DTRA
project YY0001_07_RD_PP_B, and 1UC1-AI067183-02 Interagency Agreement
Amendment Y1-AI-2663-01. Opinions, interpretations, conclusions, and
recommendations are those of the author and are not necessarily endorsed
by the U.S. Army or the Department of Defense.
NR 71
TC 32
Z9 33
U1 0
U2 2
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0264-410X
J9 VACCINE
JI Vaccine
PD DEC 11
PY 2009
VL 28
IS 2
BP 494
EP 511
DI 10.1016/j.vaccine.2009.09.133
PG 18
WC Immunology; Medicine, Research & Experimental
SC Immunology; Research & Experimental Medicine
GA 559YS
UT WOS:000274869300028
PM 19833247
ER
PT J
AU Salerno-Goncalves, R
Hepburn, MJ
Bavari, S
Sztein, MB
AF Salerno-Goncalves, Rosangela
Hepburn, Matthew J.
Bavari, Sina
Sztein, Marcelo B.
TI Generation of heterogeneous memory T cells by live attenuated tularemia
vaccine in humans
SO VACCINE
LA English
DT Article
DE T cells; Bacteria; Vaccination
ID FRANCISELLA-TULARENSIS; TYPHOID VACCINE; MEDIATED-IMMUNITY;
VIRAL-INFECTION; CUTTING EDGE; IN-VIVO; EFFECTOR; RESPONSES; EXPRESSION;
ANTIGEN
AB There is very limited evidence concerning the phenotype, function. and homing characteristics of memory T (T(M)) cells elicited by vaccination against intracellular bacteria in humans Here we studied T(M) subsets elicited by exposure to Francisella tularensis in humans as a model of immunity to intracellular. bacteria. To this end. T(M) cells were evaluated in two groups (1) subjects immunized with live attenuated tularemia vaccine by skin scarification and (2) tularemia naturally infected subjects In both groups the immune responses were mediated by CD4(+) and CD8(+) effector T(M) cells, mostly CD45RA(-)CD62L(-) and CD45RA(+)CD62L(-) Based on the expression of CD27. integrins alpha(4)/beta(1). and alpha(4)/beta(1), it is likely that some of these T(M) cells have lytic potential and the ability to enter both mucosal and non-mucosal sites Thus, regardless of whether by immunization or natural exposure. tularemia antigens elicited a broad spectrum of specific T(M) subsets with diverse homing characteristics (C) 2009 Elsevier Ltd All rights reserved
C1 [Salerno-Goncalves, Rosangela; Sztein, Marcelo B.] Univ Maryland, Ctr Vaccine Dev, Baltimore, MD 21201 USA.
[Hepburn, Matthew J.; Bavari, Sina] USA, Med Res Inst Infect Dis, Bacteriol Div, Ft Detrick, MD 21702 USA.
[Hepburn, Matthew J.; Bavari, Sina] USA, Med Res Inst Infect Dis, Div Med, Ft Detrick, MD 21702 USA.
RP Salerno-Goncalves, R (reprint author), Univ Maryland, Ctr Vaccine Dev, 685 W Baltimore St,HSF 1,Room 480, Baltimore, MD 21201 USA.
FU NIAID; NIH; DHHS [NO1 A130028]
FX This work was Supported, in part, by NIAID. NIH, DHHS federal research
contract NO1 A130028 (Immunology Research Unit (IRU) of the Food and
Water Borne Diseases Integrated Research Network (FWD-IRN)) to M.
Sztein.
NR 35
TC 7
Z9 7
U1 0
U2 0
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0264-410X
J9 VACCINE
JI Vaccine
PD DEC 10
PY 2009
VL 28
IS 1
BP 195
EP 206
DI 10.1016/j.vaccine.2009.09.100
PG 12
WC Immunology; Medicine, Research & Experimental
SC Immunology; Research & Experimental Medicine
GA 559YR
UT WOS:000274869200025
PM 19799845
ER
PT J
AU Emelie, PY
Phillips, JD
Velicu, S
Wijewarnasuriya, PS
AF Emelie, P. Y.
Phillips, J. D.
Velicu, S.
Wijewarnasuriya, P. S.
TI Parameter extraction of HgCdTe infrared photodiodes exhibiting Auger
suppression
SO JOURNAL OF PHYSICS D-APPLIED PHYSICS
LA English
DT Article; Proceedings Paper
CT Frontiers in Semiconductor-Based Devices Symposium held in Honor of
Pallab Bhattacharya
CY DEC 06-07, 2009
CL Univ Michigan, Ann Arbor, MI
HO Univ Michigan
ID NONEQUILIBRIUM OPERATION; HG1-XCDXTE; TEMPERATURE; DETECTORS
AB In this work, finite element methods are used to obtain self-consistent, steady-state solutions of Poisson's equation and the carrier continuity equations. Experimental dark current-voltage characteristics between 120 and 300 K of HgCdTe Auger-suppressed photodiodes with cutoff wavelength of lambda(c) = 10 mu m at 120 K are fitted using numerical simulations. Fitting parameters used include the overlap integral |F(1)F(2)| found to vary from 0.29 at 120 K down to 0.20 at 300 K and the Shockley-Read-Hall (SRH) characteristic lifetime found to be of the order of 10(-7) s at all temperatures. Based on this fitting, negative differential resistance observed in the experimental data is attributed to full suppression of Auger-1 processes and partial suppression of Auger-7 processes. Leakage current induced by traps and impurities in the material causing SRH recombination is found to limit the saturation current after Auger suppression.
C1 [Emelie, P. Y.; Phillips, J. D.] Univ Michigan, Dept Elect Engn & Comp Sci, Ann Arbor, MI 48109 USA.
[Velicu, S.] EPIR Technol, Bolingbrook, IL 60440 USA.
[Wijewarnasuriya, P. S.] USA, Res Lab, Adelphi, MD 20783 USA.
RP Emelie, PY (reprint author), Univ Michigan, Dept Elect Engn & Comp Sci, Ann Arbor, MI 48109 USA.
EM pyemelie@umich.edu
RI Phillips, Jamie/E-9394-2010
NR 21
TC 11
Z9 11
U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0022-3727
J9 J PHYS D APPL PHYS
JI J. Phys. D-Appl. Phys.
PD DEC 7
PY 2009
VL 42
IS 23
AR 234003
DI 10.1088/0022-3727/42/23/234003
PG 8
WC Physics, Applied
SC Physics
GA 520ON
UT WOS:000271855000007
ER
PT J
AU Kudenov, MW
Jungwirth, MEL
Dereniak, EL
Gerhart, GR
AF Kudenov, Michael W.
Jungwirth, Matthew E. L.
Dereniak, Eustace L.
Gerhart, Grant R.
TI White light Sagnac interferometer for snapshot linear polarimetric
imaging
SO OPTICS EXPRESS
LA English
DT Article
ID COMPACT
AB The theoretical and experimental demonstration of a dispersion-compensated polarization Sagnac interferometer (DCPSI) is presented. An application of the system is demonstrated by substituting the uniaxial crystal-based Savart plate (SP) in K. Oka's original snapshot polarimeter implementation with a DCPSI. The DCPSI enables the generation of an achromatic fringe field in white-light, yielding significantly more radiative throughput than the original quasi-monochromatic SP polarimeter. Additionally, this interferometric approach offers an alternative to the crystal SP, enabling the use of standard reflective or transmissive materials. Advantages are anticipated to be greatest in the thermal infrared, where uniaxial crystals are rare and the at-sensor radiance is often low when compared to the visible spectrum. First, the theoretical operating principles of the Savart plate polarimeter and a standard polarization Sagnac interferometer polarimeter are provided. This is followed by the theoretical and experimental development of the DCPSI, created through the use of two blazed diffraction gratings. Outdoor testing of the DCPSI is also performed, demonstrating the ability to detect either the S-2 and S-3, or the S-1 and S-2 Stokes parameters in white-light. (C) 2009 Optical Society of America
C1 [Kudenov, Michael W.; Jungwirth, Matthew E. L.; Dereniak, Eustace L.] Univ Arizona, Coll Opt Sci, Tucson, AZ 85721 USA.
USA, TACOM, Warren, MI 48397 USA.
RP Kudenov, MW (reprint author), Univ Arizona, Coll Opt Sci, 1630 E Univ Blvd, Tucson, AZ 85721 USA.
NR 18
TC 20
Z9 20
U1 0
U2 15
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1094-4087
J9 OPT EXPRESS
JI Opt. Express
PD DEC 7
PY 2009
VL 17
IS 25
BP 22520
EP 22534
DI 10.1364/OE.17.022520
PG 15
WC Optics
SC Optics
GA 532PG
UT WOS:000272761300028
PM 20052177
ER
PT J
AU Chen, RR
Li, HX
Chu, D
Wang, GF
AF Chen, Rongrong
Li, Haixia
Chu, Deryn
Wang, Guofeng
TI Unraveling Oxygen Reduction Reaction Mechanisms on Carbon-Supported
Fe-Phthalocyanine and Co-Phthalocyanine Catalysts in Alkaline Solutions
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID ANION-EXCHANGE MEMBRANES; FUEL-CELLS; GRAPHITE-ELECTRODES;
PYROLYTIC-GRAPHITE; ELECTROCATALYTIC ACTIVITY; IRON PHTHALOCYANINE; O-2
REDUCTION; ELECTROREDUCTION; SURFACE; COBALT
AB In this work, we combine electrochemical measurements, such as the rotating disk electrode (RDE) and the rotating ring-disk electrode (RRDE) techniques, and density functional theory (DFT) calculations to elucidate the mechanisms of the oxygen reduction reaction (ORR) on carbon-supported Fe-phthalocyanine (FePc/C) and Co-phthalocyanine (CoPc/C) catalysts in 0.1 M NaOH solutions. The onset potential for ORR on FePc/C catalyst is found to be around 0.05 V vs. Hg/HgO in 0.1 M NaOH solutions, which is 100 mV more positive than that on CoPc/C. RDE and RRDE measurements show that the ORR mechanism is via a 4e(-) pathway on the FePc/C while it is through a 2e(-) pathway on the CoPc/C catalyst. The catalyst stability tests reveal that FePc is much less stable than CoPc under fuel cell cathode working conditions. Moreover, DFT calculations were performed to study the adsorption of O(2), H(2)O, OH, HOOH, and H(2)OO molecules on FePc and CoPc molecule catalysts. We conclude the following from Our theoretical and experimental results for the ORR on FePc/C and CoPc/C catalysts: (1) the lower the 0, adsorption energy, the higher the kinetics of the ORR will be; (2) the ORR pathways, 2e(-) or 4e(-), are mainly determined by the H(2)O(2) adsorption configurations; and (3) OH adsorption on the catalysts is considered to be an important factor to affect the catalyst stability.
C1 [Chen, Rongrong; Li, Haixia; Wang, Guofeng] Indiana Univ Purdue Univ Indianapolis, Richard G Lugar Ctr Renewable Energy, Indianapolis, IN 46202 USA.
[Chu, Deryn] USA, Res Lab, Adelphi, MD 20783 USA.
[Wang, Guofeng] Indiana Univ Purdue Univ Indianapolis, Dept Mech Engn, Indianapolis, IN 46202 USA.
RP Chen, RR (reprint author), Indiana Univ Purdue Univ Indianapolis, Richard G Lugar Ctr Renewable Energy, Indianapolis, IN 46202 USA.
EM rochen@iupui.edu; wang83@iupui.edu
RI dong, guofa/D-5248-2011; li, Haixia/B-9937-2012
FU U.S. Army Research Lab [W911NF-07-2-0036]
FX This work was supported by the U.S. Army Research Lab (Grant No:
W911NF-07-2-0036).
NR 45
TC 175
Z9 175
U1 37
U2 201
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1932-7447
J9 J PHYS CHEM C
JI J. Phys. Chem. C
PD DEC 3
PY 2009
VL 113
IS 48
BP 20689
EP 20697
DI 10.1021/jp906408y
PG 9
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 522ZJ
UT WOS:000272038600025
ER
PT J
AU Rerks-Ngarm, S
Pitisuttithum, P
Nitayaphan, S
Kaewkungwal, J
Chiu, J
Paris, R
Premsri, N
Namwat, C
de Souza, M
Adams, E
Benenson, M
Gurunathan, S
Tartaglia, J
McNeil, JG
Francis, DP
Stablein, D
Birx, DL
Chunsuttiwat, S
Khamboonruang, C
Thongcharoen, P
Robb, ML
Michael, NL
Kunasol, P
Kim, JH
AF Rerks-Ngarm, Supachai
Pitisuttithum, Punnee
Nitayaphan, Sorachai
Kaewkungwal, Jaranit
Chiu, Joseph
Paris, Robert
Premsri, Nakorn
Namwat, Chawetsan
de Souza, Mark
Adams, Elizabeth
Benenson, Michael
Gurunathan, Sanjay
Tartaglia, Jim
McNeil, John G.
Francis, Donald P.
Stablein, Donald
Birx, Deborah L.
Chunsuttiwat, Supamit
Khamboonruang, Chirasak
Thongcharoen, Prasert
Robb, Merlin L.
Michael, Nelson L.
Kunasol, Prayura
Kim, Jerome H.
CA MOPH-TAVEG Investigators
TI Vaccination with ALVAC and AIDSVAX to Prevent HIV-1 Infection in
Thailand
SO NEW ENGLAND JOURNAL OF MEDICINE
LA English
DT Article
ID IMMUNODEFICIENCY-VIRUS TYPE-1; RECOMBINANT GLYCOPROTEIN-120 VACCINE;
IMMUNE-RESPONSES; CANARYPOX VACCINE; PHASE-I/II; SUBTYPE-E; NEUTRALIZING
ANTIBODIES; SIMIAN IMMUNODEFICIENCY; HIV-1-UNINFECTED ADULTS; CANDIDATE
VACCINE
AB BACKGROUND
The development of a safe and effective vaccine against the human immunodeficiency virus type 1 (HIV-1) is critical to pandemic control.
METHODS
In a community-based, randomized, multicenter, double-blind, placebo-controlled efficacy trial, we evaluated four priming injections of a recombinant canarypox vector vaccine (ALVAC-HIV [vCP1521]) plus two booster injections of a recombinant glycoprotein 120 subunit vaccine (AIDSVAX B/E). The vaccine and placebo injections were administered to 16,402 healthy men and women between the ages of 18 and 30 years in Rayong and Chon Buri provinces in Thailand. The volunteers, primarily at heterosexual risk for HIV infection, were monitored for the coprimary end points: HIV-1 infection and early HIV-1 viremia, at the end of the 6-month vaccination series and every 6 months thereafter for 3 years.
RESULTS
In the intention-to-treat analysis involving 16,402 subjects, there was a trend toward the prevention of HIV-1 infection among the vaccine recipients, with a vaccine efficacy of 26.4% (95% confidence interval [CI], -4.0 to 47.9; P = 0.08). In the per-protocol analysis involving 12,542 subjects, the vaccine efficacy was 26.2% (95% CI, -13.3 to 51.9; P = 0.16). In the modified intention-to-treat analysis involving 16,395 subjects (with the exclusion of 7 subjects who were found to have had HIV-1 infection at baseline), the vaccine efficacy was 31.2% (95% CI, 1.1 to 52.1; P = 0.04). Vaccination did not affect the degree of viremia or the CD4+ T-cell count in subjects in whom HIV-1 infection was subsequently diagnosed.
CONCLUSIONS
This ALVAC-HIV and AIDSVAX B/E vaccine regimen may reduce the risk of HIV infection in a community-based population with largely heterosexual risk. Vaccination did not affect the viral load or CD4+ count in subjects with HIV infection. Although the results show only a modest benefit, they offer insight for future research. (ClinicalTrials.gov number, NCT00223080.)
C1 [Robb, Merlin L.; Michael, Nelson L.; Kim, Jerome H.] Walter Reed Army Inst Res, US Mil HIV Res Program, Rockville, MD 20850 USA.
[Rerks-Ngarm, Supachai; Paris, Robert; Namwat, Chawetsan; Chunsuttiwat, Supamit; Khamboonruang, Chirasak; Thongcharoen, Prasert; Kunasol, Prayura] Minist Publ Hlth, Dept Dis Control, Nonthaburi, Thailand.
[Pitisuttithum, Punnee] Mahidol Univ, Vaccine Trials Ctr, Bangkok 10700, Thailand.
[Kaewkungwal, Jaranit] Mahidol Univ, Fac Trop Med, Data Management Unit, Bangkok, Thailand.
[Chiu, Joseph; Paris, Robert; de Souza, Mark; Benenson, Michael] Armed Forces Res Inst Med Sci, US Army Med Component, Bangkok 10400, Thailand.
[Adams, Elizabeth] NIAID, Div Aids, NIH, Bethesda, MD 20892 USA.
[Gurunathan, Sanjay; Tartaglia, Jim; McNeil, John G.] Sanofi Pasteur, Swiftwater, PA USA.
[Francis, Donald P.] Global Solut Infect Dis, San Francisco, CA USA.
[Stablein, Donald] Emmes Corp, Rockville, MD USA.
[Birx, Deborah L.] Ctr Dis Control & Prevent, Global AIDS Program, Atlanta, GA USA.
[Kim, Jerome H.] US Army Med Mat Dev Act, Ft Detrick, MD USA.
RP Kim, JH (reprint author), Walter Reed Army Inst Res, US Mil HIV Res Program, 1600 E Gude Dr, Rockville, MD 20850 USA.
EM jkim@hivresearch.org
FU U. S. Army Medical Research and Materiel Command [Y1-AI-2642-12];
National Institute of Allergy and Infectious Diseases [Y1-AI-2642-12];
Henry M. Jackson Foundation [W81XWH-07-2-0067]; U. S. Department of
Defense [W81XWH-07-2-0067]
FX Supported in part by an Interagency Agreement (Y1-AI-2642-12) between
the U. S. Army Medical Research and Materiel Command and the National
Institute of Allergy and Infectious Diseases and by a cooperative
agreement (W81XWH-07-2-0067) between the Henry M. Jackson Foundation for
the Advancement of Military Medicine and the U. S. Department of
Defense. Sanofi Pasteur provided the ALVAC-HIV vaccine, and Global
Solutions for Infectious Diseases (VaxGen) provided the reagents for the
immunogenicity assays.
NR 48
TC 1472
Z9 1500
U1 20
U2 137
PU MASSACHUSETTS MEDICAL SOC
PI WALTHAM
PA WALTHAM WOODS CENTER, 860 WINTER ST,, WALTHAM, MA 02451-1413 USA
SN 0028-4793
EI 1533-4406
J9 NEW ENGL J MED
JI N. Engl. J. Med.
PD DEC 3
PY 2009
VL 361
IS 23
BP 2209
EP 2220
DI 10.1056/NEJMoa0908492
PG 12
WC Medicine, General & Internal
SC General & Internal Medicine
GA 525ZM
UT WOS:000272257100004
PM 19843557
ER
PT J
AU Dutta, S
Sullivan, JS
Grady, KK
Haynes, JD
Komisar, J
Batchelor, AH
Soisson, L
Diggs, CL
Heppner, DG
Lanar, DE
Collins, WE
Barnwell, JW
AF Dutta, Sheetij
Sullivan, JoAnn S.
Grady, Katharine K.
Haynes, J. David
Komisar, Jack
Batchelor, Adrian H.
Soisson, Lorraine
Diggs, Carter L.
Heppner, D. Gray
Lanar, David E.
Collins, William E.
Barnwell, John W.
TI High Antibody Titer against Apical Membrane Antigen-1 Is Required to
Protect against Malaria in the Aotus Model
SO PLOS ONE
LA English
DT Article
ID INSTITUTE-OF-RESEARCH; BLOOD-STAGE MALARIA; PLASMODIUM-FALCIPARUM;
VACCINE CANDIDATE; MONKEYS; IMMUNOGENICITY; INVASION; SAFETY; AMA-1;
CHILDREN
AB A Plasmodium falciparum 3D7 strain Apical Membrane Antigen-1 (AMA1) vaccine, formulated with AS02A adjuvant, slowed parasite growth in a recent Phase 1/2a trial, however sterile protection was not observed. We tested this AS02A, and a Montanide ISA720 (ISA) formulation of 3D7 AMA1 in Aotus monkeys. The 3D7 parasite does not invade Aotus erythrocytes, hence two heterologous strains, FCH/4 and FVO, were used for challenge, FCH/4 AMA1 being more homologous to 3D7 than FVO AMA1. Following three vaccinations, the monkeys were challenged with 50,000 FCH/4 or 10,000 FVO parasites. Three of the six animals in the AMA+ISA group were protected against FCH/4 challenge. One monkey did not become parasitemic, another showed only a short period of low level parasitemia that self-cured, and a third animal showed a delay before exhibiting its parasitemic phase. This is the first protection shown in primates with a recombinant P. falciparum AMA1 without formulation in Freund's complete adjuvant. No animals in the AMA+AS02(A) group were protected, but this group exhibited a trend towards reduced growth rate. A second group of monkeys vaccinated with AMA+ISA vaccine was not protected against FVO challenge, suggesting strain-specificity of AMA1-based protection. Protection against FCH/4 strain correlated with the quantity of induced antibodies, as the protected animals were the only ones to have in vitro parasite growth inhibitory activity of > 70% at 1:10 serum dilution; immuno-fluorescence titers.8,000; ELISA titers against full-length AMA1 > 300,000 and ELISA titer against AMA1 domains1+2 > 100,000. A negative correlation between log ELISA titer and day 11 cumulative parasitemia (Spearman rank r = 20.780, p value = 0.0001), further confirmed the relationship between antibody titer and protection. High titers of cross-strain inhibitory antibodies against AMA1 are therefore critical to confer solid protection, and the Aotus model can be used to down-select future AMA1 formulations, prior to advanced human trials.
C1 [Dutta, Sheetij; Batchelor, Adrian H.] Walter Reed Army Inst Res, Dept Epitope Mapping, Silver Spring, MD USA.
[Sullivan, JoAnn S.; Grady, Katharine K.; Collins, William E.; Barnwell, John W.] Ctr Dis Control & Prevent, Malaria Branch, Div Parasit Dis, Atlanta, GA USA.
[Soisson, Lorraine; Diggs, Carter L.] US Agcy Int Dev, Malaria Vaccine Dev Program, Washington, DC 20523 USA.
[Haynes, J. David; Komisar, Jack; Heppner, D. Gray; Lanar, David E.] Walter Reed Army Inst Res, Div Malaria Vaccine Dev, Silver Spring, MD USA.
RP Dutta, S (reprint author), Walter Reed Army Inst Res, Dept Epitope Mapping, Silver Spring, MD USA.
EM sheetij.dutta@us.army.mil; wzb3@cdc.gov
RI Lanar, David/B-3560-2011
FU U.S. Agency for International Development (USAID)
FX Funding for this work was provided by U.S. Agency for International
Development (USAID) Malaria Vaccine Development Program. Two of the
authors on the paper, CLD and LS, are USAID representatives and were
involved in the planning phase of this study.
NR 37
TC 53
Z9 53
U1 0
U2 4
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 185 BERRY ST, STE 1300, SAN FRANCISCO, CA 94107 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD DEC 3
PY 2009
VL 4
IS 12
AR e8138
DI 10.1371/journal.pone.0008138
PG 12
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 533MW
UT WOS:000272829000002
PM 19997632
ER
PT J
AU Lighthart, B
Shaffer, BT
Frisch, AS
Paterno, D
AF Lighthart, Bruce
Shaffer, Brenda T.
Frisch, A. Shelby
Paterno, Dorothea
TI Atmospheric culturable bacteria associated with meteorological
conditions at a summer-time site in the mid-Willamette Valley, Oregon
SO AEROBIOLOGIA
LA English
DT Article
DE Airborne; Bacteria; Atmospheric; Concentration; Principal component
analysis; Cluster analysis
ID AIRBORNE BACTERIA; DIVERSE; URBAN
AB A set of simultaneously collected quantitative measurements of 12 meteorological and 6 culturable atmospheric bacterial (CAB) variables was made over a grass seed field during several early, mid, and late summer days. The observation site was located between the Cascade and Coastal Mountain Ranges near Corvallis in the Willamette Valley, Oregon. Principal component analysis identified those meteorological variables that had the highest loadings in six eigenvectors that account for 95.9% of variation in the data factors, i.e., temperature @ 6.3 m above ground level (AGL), wind velocity @ 10.0 m AGL, wind velocity difference @ 1.7-10.0 m, barometric pressure, wind direction standard deviation, and wind direction. When these variables were used in a cluster analysis, they formed three statistically distinct meteorological variable clusters with means at ca. "midnight'', ca. "midday'', and ca. "evening.'' The highest mean density of CAB (i.e., 153.4 +/- 162.5 CFU/m(3)) was associated with the "midday'' meteorological Cluster-1 that had warm, dry "gentle breezes'' from the southeast, in the relatively bacteria loaded Willamette Valley air. The lowest mean density of CAB (i.e., 35.5 +/- 24.1 CFU/m(3)) was associated with meteorological Cluster-3 in the late afternoon and "evening'' occurring during the hottest and driest part of the day with "fresh breezes'' coming from the north northwest in air off the Pacific Ocean. Finally, the last cluster, Cluster-2 occurred about midnight and had an intermediate density of CAB (74.2 +/- 76.2 CFU/m(3)) in "light air'' coming from the northwest, perhaps off the Pacific Ocean. The CAB associated with each of the three meteorological clusters was only partially statistically distinct. Partially because the CAB in both the Pacific Ocean derived air masses of the "evening'' Cluster-3 and "midnight'' Cluster-2 were not statically separable, though both were statistically separable from the midday, Willamette Valley derived Cluster-1. Further indicating their common source, both Pacific Ocean derived air masses had very similar percentages of pigmented bacteria, which were dissimilar to the pigmented bacterial population density in the Willamette Valley air masses. In short, it is speculated that "midnight'' atmosphere may simply contain the settling concentrated residual bacterial particles in the abated fresh Pacific Ocean breezes after sundown. It is clearly shown that with the methods employed, it is possible to associate the uniqueness of the quantity, and to a lesser extent the quality, of the CAB population with the atmospheric conditions reported herein. From this project comes speculation that the strategies relating the quasi-conservative bacterial populations associated with distinct but nonconservative air mass properties can help to better understand more of the bacterial dynamics found in such situations. And to a further extent, molecular biological methods could be applied to identify bacterial taxa in specific air masses.
C1 [Shaffer, Brenda T.] US EPA, Dynamac Corp, Corvallis, OR 97330 USA.
[Frisch, A. Shelby] Colorado State Univ, Cooperat Inst Res Atmosphere, Ft Collins, CO 80524 USA.
[Paterno, Dorothea] R&T US ARMY, ECBC, Aberdeen Proving Ground, MD 21010 USA.
RP Lighthart, B (reprint author), 10975 Doll Rd, Monmouth, OR 97361 USA.
EM Bruce@Lighthart.us
NR 24
TC 5
Z9 8
U1 0
U2 9
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0393-5965
J9 AEROBIOLOGIA
JI Aerobiologia
PD DEC
PY 2009
VL 25
IS 4
BP 285
EP 295
DI 10.1007/s10453-009-9133-7
PG 11
WC Biology; Environmental Sciences
SC Life Sciences & Biomedicine - Other Topics; Environmental Sciences &
Ecology
GA 511UW
UT WOS:000271197300009
ER
PT J
AU Lentine, KL
Xiao, HL
Brennan, DC
Schnitzler, MA
Villines, TC
Abbott, KC
Axelrod, D
Snyder, JJ
Hauptman, PJ
AF Lentine, Krista L.
Xiao, Huiling
Brennan, Daniel C.
Schnitzler, Mark A.
Villines, Todd C.
Abbott, Kevin C.
Axelrod, David
Snyder, Jon J.
Hauptman, Paul J.
TI The impact of kidney transplantation on heart failure risk varies with
candidate body mass index
SO AMERICAN HEART JOURNAL
LA English
DT Article
ID STAGE RENAL-DISEASE; LEFT-VENTRICULAR HYPERTROPHY; CARDIOVASCULAR RISK;
NONINVASIVE ASSESSMENT; SYSTOLIC DYSFUNCTION; DIALYSIS PATIENTS;
BLOOD-PRESSURE; OBESITY; OUTCOMES; EPIDEMIOLOGY
AB Background The relationship of body mass index (BMI) with heart failure (HF) risk before and after kidney transplant is not well described.
Methods We examined United States Renal Data System records for 67,591 kidney transplant candidates (1995-2004) with Medicare insurance and BMI data at listing. Heart failure diagnoses were ascertained from Medicare billing claims. Body mass index was categorized per World Health Organization criteria. We modeled time-dependent associations (adjusted hazard ratio, aHR) of transplant with HF risk after listing compared with waiting in each BMI group by multivariable, stratified Cox regression. The time-dependent exposure variables partitioned relative risk of HF after transplant versus waiting into early (<= 90 days) and late (> 90 days) posttransplant periods.
Results The BMI distribution of listed candidates was as follows: 3.7% under, 40.4% normal, 32.0% over, 16.2% obese, and 7.7% morbidly obese weight. The prevalence of HF among patients awaiting transplant reached 57.4% by 3 years. Deceased-donor transplant was associated with increased early HF risk compared with continued waiting-aHRs ranged from 2.23 for normal-BMI to 2.82 for morbidly obese patients. However, transplant reduced the risk of HF in the late posttransplant period from 54% (aHR 0.46) in normal-BMI to 32% (aHR 0.68) for morbidly obese patients. Relative benefits were largest for normal-weight candidates who received live-donor transplants (aHR 0.31).
Conclusions Heart failure risk improves in obese patients in the long term after kidney transplant, but not as much as for nonobese patients. There is need for close monitoring and for new strategies to reduce HF risk in obese patients before and after transplant. (Am Heart J 2009; 158: 972-82.)
C1 [Lentine, Krista L.; Xiao, Huiling; Schnitzler, Mark A.; Hauptman, Paul J.] St Louis Univ, Sch Med, Ctr Outcomes Res, St Louis, MO 63104 USA.
[Lentine, Krista L.] St Louis Univ, Sch Med, Div Nephrol, St Louis, MO 63104 USA.
[Brennan, Daniel C.] Washington Univ, Sch Med, Div Nephrol, St Louis, MO USA.
[Villines, Todd C.] Walter Reed Army Med Ctr, Serv Cardiol, Washington, DC 20307 USA.
[Abbott, Kevin C.] Walter Reed Army Med Ctr, Serv Nephrol, Washington, DC 20307 USA.
[Axelrod, David] Dartmouth Hitchcock Med Ctr, Dept Surg, Hanover, NH USA.
[Snyder, Jon J.] Minneapolis Med Res Fdn Inc, Chron Dis Res Grp, Minneapolis, MN USA.
[Hauptman, Paul J.] St Louis Univ, Sch Med, Div Cardiol, St Louis, MO 63104 USA.
RP Lentine, KL (reprint author), St Louis Univ, Sch Med, Ctr Outcomes Res, Salus Ctr 2nd Floor,3545 Lafayette Ave, St Louis, MO 63104 USA.
EM lentine.krista@stanfordalumni.org
OI Villines, Todd/0000-0003-2674-3702; Abbott, Kevin/0000-0003-2111-7112
FU NIDDK NIH HHS [K08 DK073036, K08 DK073036-04, P30 DK079333]
NR 39
TC 16
Z9 16
U1 0
U2 0
PU MOSBY-ELSEVIER
PI NEW YORK
PA 360 PARK AVENUE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0002-8703
J9 AM HEART J
JI Am. Heart J.
PD DEC
PY 2009
VL 158
IS 6
BP 972
EP 982
DI 10.1016/j.ahj.2009.10.009
PG 11
WC Cardiac & Cardiovascular Systems
SC Cardiovascular System & Cardiology
GA 536NM
UT WOS:000273051100013
PM 19958864
ER
PT J
AU Young, PE
Ray, QP
Hwang, I
Kikendall, JW
Gentry, AB
Skopic, A
Cash, BD
AF Young, Patrick E.
Ray, Quentin P.
Hwang, Inku
Kikendall, James W.
Gentry, Andrew B.
Skopic, Amer
Cash, Brooks D.
TI Gastroenterologists' Interpretation of CTC: A Pilot Study Demonstrating
Feasibility and Similar Accuracy Compared With Radiologists'
Interpretation
SO AMERICAN JOURNAL OF GASTROENTEROLOGY
LA English
DT Article
ID COMPUTED TOMOGRAPHIC COLONOGRAPHY; EXTRACOLONIC FINDINGS; VIRTUAL
COLONOSCOPY; PREVALENCE; POPULATION
AB OBJECTIVES: Computed tomography colonography (CTC) is an emerging colon cancer screening modality that has the potential to increase adherence to current screening recommendations. Traditionally, the interpretation of CTC has been limited to radiologists. As the technology of CTC has developed, three-dimensional endoluminal fly-through images have largely replaced two-dimensional CT images as the primary reading modality. Such a display is a realistic corollary to the endoscopic view obtained during colonoscopy. Our study sought to determine whether gastroenterologists could interpret the colonic display of CTC with an accuracy similar to that of trained radiologists.
METHODS: Three board-certified gastroenterologists and four gastroenterology fellows in various stages of training interpreted a mean of 45 CTCs (range: 30-50) in which colonoscopy had also been performed. Before reading any cases, each reader underwent CTC interpretation training with an experienced CTC radiologist. After interpreting each CTC, the gastroenterologist had access to both the original radiology interpretation of the CTC and the corresponding colonoscopy results. Outcomes included accuracy of the gastroenterologists' interpretation, time required for CTC interpretation, evidence of learning, and the level of diagnostic agreement between gastroenterologists and radiologists.
RESULTS: Gastroenterologist readers identified polyps >= 6 mm on CTC with a mean sensitivity and specificity of 83.5% (67-100%) and 78.8% (69-100%), respectively. Corresponding values for polyps >= 8 mm were 83.8% (68-100%) and 74% (30-93%), respectively, and those for polyps >= 10 mm were 87.8% (67-100%) and 85.2% (60-94%), respectively. Overall, 83% (5 of 6) of gastroenterologists achieved kappa scores >= 0.60, suggesting good agreement with radiologists; 66% achieved kappa >= 0.75. There was a direct relationship between diagnostic accuracy and level of gastroenterology training, with third-year fellows being nearly as accurate as the attendings. The average gastroenterologist CTC reading time was 18.4 min (range: 11.2-25.6).
CONCLUSIONS: The gastroenterologists in this study were able to read CTCs with an accuracy that approaches that of radiologists. The level of training affected the accuracy of CTC interpretation by the gastroenterologist. Average gastroenterologist CTC interpretation times in this study were similar to recommended colonoscopy times. Further studies are warranted to determine whether gastroenterologists are able to interpret CTCs independently in clinical practice.
C1 [Young, Patrick E.; Ray, Quentin P.; Kikendall, James W.; Gentry, Andrew B.; Skopic, Amer; Cash, Brooks D.] Natl Naval Med Ctr, Div Gastroenterol, Uniformed Serv Univ Hlth Sci, Bethesda, MD 20889 USA.
[Hwang, Inku] Uniformed Serv Univ Hlth Sci, Walter Reed Army Med Ctr, Dept Gastroenterol, Washington, DC USA.
RP Young, PE (reprint author), Natl Naval Med Ctr, Div Gastroenterol, Uniformed Serv Univ Hlth Sci, Bldg 9,1st Fl, Bethesda, MD 20889 USA.
EM Patrick.young2@.med.navy.mil
NR 18
TC 8
Z9 8
U1 0
U2 1
PU NATURE PUBLISHING GROUP
PI NEW YORK
PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA
SN 0002-9270
J9 AM J GASTROENTEROL
JI Am. J. Gastroenterol.
PD DEC
PY 2009
VL 104
IS 12
BP 2926
EP 2931
DI 10.1038/ajg.2009.452
PG 6
WC Gastroenterology & Hepatology
SC Gastroenterology & Hepatology
GA 529XQ
UT WOS:000272553100008
PM 19672252
ER
PT J
AU Barnes, BR
Szelenyi, ER
Warren, GL
Urso, ML
AF Barnes, Brian R.
Szelenyi, Eric R.
Warren, Gordon L.
Urso, Maria L.
TI Alterations in mRNA and protein levels of metalloproteinases-2,-9,
and-14 and tissue inhibitor of metalloproteinase-2 responses to
traumatic skeletal muscle injury
SO AMERICAN JOURNAL OF PHYSIOLOGY-CELL PHYSIOLOGY
LA English
DT Article
DE extracellular matrix; freeze injury; membrane type-1 matrix
metalloproteinase; shedding; gene expression
ID STEM CELL ACTIVATION; MATRIX METALLOPROTEINASES; EXTRACELLULAR-MATRIX;
GROWTH-FACTOR; I COLLAGEN; SATELLITE CELLS; MMP-2 ACTIVITY; MEMBRANE;
EXPRESSION; MT1-MMP
AB Barnes BR, Szelenyi ER, Warren GL, Urso ML. Alterations in mRNA and protein levels of metalloproteinases-2, -9, and -14 and tissue inhibitor of metalloproteinase-2 responses to traumatic skeletal muscle injury. Am J Physiol Cell Physiol 297: C1501-C1508, 2009. First published September 30, 2009; doi:10.1152/ajpcell.00217.2009.-This study characterizes the temporal relationship of membrane type-1 matrix metalloproteinase (MT1-MMP) and tissue inhibitor of metalloproteinase-2 (TIMP-2) expression in skeletal muscle following injury. Tibialis anterior (TA) muscles from 60 mice were exposed and injured by applying a cold steel probe (-79 degrees C) to the muscle for 10 s. Thereafter, TA muscles from uninjured and injured legs were collected at 3, 10, 24, 48, and 72 h postinjury for analysis of local MT1-MMP, TIMP-2, and matrix metalloproteinases-2 and -9 (MMP-2 and MMP-9) mRNA and protein content via quantitative RT-PCR, immunoblotting, zymography, and immunofluorescence. All data are expressed as fold change of injured leg vs. uninjured leg. MT1-MMP mRNA levels were decreased significantly at 48 and 72 h postinjury by similar to 9- and 21-fold, respectively (P < 0.01). Both TIMP-2 and MMP-2 mRNA expression significantly decreased in the injured leg by similar to 4- to 10-fold at 10-72 h postinjury (P < 0.01). MMP-9 mRNA expression was significantly increased at 10, 24, and 48 h postinjury by 6- (P < 0.05), 25-, and 12-fold (P < 0.01), respectively. Protein content of latent (63 kDa) MT1-MMP was decreased at 48 and 72 h postinjury by similar to 2-fold (P < 0.01). Content of the soluble (50 kDa) fragment of MT1-MMP was significantly increased by similar to 17-, 25-, and 67-fold at 24 (P < 0.05), 48, and 72 h (P < 0.01) postinjury, respectively. TIMP-2 protein levels diminished from 3 to 48 h postinjury by 1.5-fold to 1.8-fold (P < 0.01), before returning to baseline levels at 72 h postinjury. Zymography revealed visual increases in gelatinase activity in molecular weight regions corresponding to MMP-9 and MMP-2. In conclusion, skeletal muscle injury initiates a sequence of events in the MT1-MMP proteolytic cascade resulting in elevated levels of the soluble (50 kDa) fragment of MT1-MMP, which could enhance pericellular extracellular matrix remodeling.
C1 [Barnes, Brian R.; Szelenyi, Eric R.; Urso, Maria L.] USA, Environm Med Res Inst, Natick, MA 01760 USA.
[Warren, Gordon L.] Georgia State Univ, Div Phys Therapy, Atlanta, GA 30303 USA.
RP Barnes, BR (reprint author), Arteriocyte Med Syst Clin Affairs, 45 South St, Hopkinton, MA 01762 USA.
EM bbarnes@arteriocyte.com
RI Warren, Gordon/A-9794-2008;
OI Warren, Gordon/0000-0002-7073-8524; Urso, Maria/0000-0001-8906-4673
FU In-house Laboratory Independent Research Program (ILIR)
FX This research was funded by an In-house Laboratory Independent Research
Program (ILIR).
NR 42
TC 11
Z9 11
U1 0
U2 3
PU AMER PHYSIOLOGICAL SOC
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 USA
SN 0363-6143
J9 AM J PHYSIOL-CELL PH
JI Am. J. Physiol.-Cell Physiol.
PD DEC
PY 2009
VL 297
IS 6
BP C1501
EP C1508
DI 10.1152/ajpcell.00217.2009
PG 8
WC Cell Biology; Physiology
SC Cell Biology; Physiology
GA 524PV
UT WOS:000272156100019
PM 19794148
ER
PT J
AU Hawksworth, JS
Stojadinovic, A
Gage, FA
Tadaki, DK
Perdue, PW
Forsberg, J
Davis, TA
Dunne, JR
Denobile, JW
Brown, TS
Elster, EA
AF Hawksworth, Jason S.
Stojadinovic, Alexander
Gage, Frederick A.
Tadaki, Doug K.
Perdue, Philip W.
Forsberg, Jonathan
Davis, Thomas A.
Dunne, James R.
Denobile, John W.
Brown, Trevor S.
Elster, Eric A.
TI Inflammatory Biomarkers in Combat Wound Healing
SO ANNALS OF SURGERY
LA English
DT Article
ID OPERATION IRAQI FREEDOM; HEMORRHAGIC-SHOCK; EXTREMITY WOUNDS; ENDURING
FREEDOM; INJURIES; FAILURE; BLAST; INTERLEUKIN-6; MECHANISMS; EXPRESSION
AB Background: Modem war ballistics and blast injuries inflict devastating extremity injuries, violating soft tissue, bone, and neurovascular structures. Despite advances in complex wound management, appropriate timing of war wound closure remains subjective. In addition, the pathophysiology of acute wound failure is poorly defined.
Methods: Patients with penetrating extremity wounds sustained during combat were prospectively studied and followed for 30 days after definitive wound closure. The primary outcome was wound healing. Wound dehiscence was defined as spontaneous partial or complete wound disruption after closure. Serum, wound effluent, and wound bed tissue biopsy were collected at each surgical wound debridement. Serum and wound effluent were analyzed with a multiplex array of 22 cytokines and chemokines, and wound tissue for corresponding gene transcript expression.
Results: Fifty-two penetrating extremity war wounds in 33 male patients were investigated. Nine (17%) wounds dehisced. Concomitant vascular injury, increased wound size, and higher injury severity score correlated with wound dehiscence. Both serum and wound effluent cytokine and chemokine protein profiles were statistically associated with healing outcome at various time points. Wound biopsy gene transcript expression demonstrated increased tissue inflammation associated with wound failure. Multiple protein and gene transcript biomarkers predictive of wound healing were identified.
Conclusions: The cytokine and chemokine protein and gene transcript expression patterns demonstrate a condition of inflammatory dysregulation associated with war wound failure. A molecular biomarker panel may predict combat wound healing outcome and warrants prospective validation.
C1 [Hawksworth, Jason S.; Gage, Frederick A.; Tadaki, Doug K.; Forsberg, Jonathan; Davis, Thomas A.; Brown, Trevor S.; Elster, Eric A.] USN, Med Res Ctr, Dept Regenerat Med, Silver Spring, MD 20910 USA.
[Hawksworth, Jason S.; Stojadinovic, Alexander] Walter Reed Army Med Ctr, Dept Surg, Washington, DC 20307 USA.
[Stojadinovic, Alexander; Forsberg, Jonathan; Elster, Eric A.] Uniformed Serv Univ Hlth Sci, Dept Surg, Bethesda, MD 20814 USA.
[Perdue, Philip W.; Dunne, James R.; Denobile, John W.; Elster, Eric A.] Natl Naval Med Ctr, Dept Surg, Bethesda, MD USA.
[Forsberg, Jonathan] Walter Reed Natl Mil Med Ctr, Dept Orthopaed & Rehabil, Bethesda, MD USA.
[Forsberg, Jonathan] Walter Reed Natl Mil Med Ctr, Dept Orthopaed & Rehabil, Washington, DC USA.
RP Elster, EA (reprint author), USN, Med Res Ctr, Dept Regenerat Med, Silver Spring, MD 20910 USA.
EM eric.elster@med.navy.mil
FU US Navy Bureau of Medicine and Surgery [PE 0604771N]
FX Supported (in part) by the US Navy Bureau of Medicine and Surgery under
the Medical Development Program (PE 0604771N). Office of Naval Research
work unit number 604771N.0933.001.A0604.
NR 36
TC 56
Z9 56
U1 1
U2 9
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0003-4932
J9 ANN SURG
JI Ann. Surg.
PD DEC
PY 2009
VL 250
IS 6
BP 1002
EP 1007
DI 10.1097/SLA.0b013e3181b248d9
PG 6
WC Surgery
SC Surgery
GA 526SM
UT WOS:000272313700023
PM 19953718
ER
PT J
AU Coburn, W
Ly, C
Burcham, T
Harris, R
Bamba, A
AF Coburn, William
Ly, Canh
Burcham, Timothy
Harris, Russell
Bamba, Amid
TI Design and Fabrication of an Axial Mode Helical Antenna
SO APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL
LA English
DT Article
DE Helical antenna; circular polarization; fiberglass; Method of Moments;
FEKO
AB Given generalized requirements for a medium gain circularly polarized (CP) antenna we design and fabricate an axial mode helical antenna. This well known antenna has a relatively wide (1.7:1) bandwidth with gain proportional to the overall length. The antenna and ground plane diameters are determined by the chosen center frequency of operation. We evaluate the antenna design using FEKO electromagnetic simulation software for a center frequency of 700 MHz. We then fabricate one prototype with center metal rod support and foam core as in the conventional construction. We also desire a hollow core variant and use fiberglass to support the helical antenna. We present the measured results for these two types of construction compared to model results. Although the helical antenna embedded in fiberglass is a very rugged design it also involves sufficient dielectric loading to shift the antenna bandwidth to lower frequencies.
C1 [Coburn, William; Ly, Canh; Burcham, Timothy; Harris, Russell; Bamba, Amid] USA, Res Lab, Adelphi, MD 20783 USA.
RP Coburn, W (reprint author), USA, Res Lab, Adelphi, MD 20783 USA.
EM wcoburn@arl.army.mil; ly@arl.army.mil; burcham@arl.army.mil;
rharris@arl.army.mil; amid.bamba@arl.army.mil
NR 11
TC 0
Z9 0
U1 0
U2 4
PU APPLIED COMPUTATIONAL ELECTROMAGNETICS SOC
PI UNIVERSITY
PA UNIV MISSISSIPPI, DEPT ELECTRICAL ENGINEERING, UNIVERSITY, MS 38677 USA
SN 1054-4887
J9 APPL COMPUT ELECTROM
JI Appl. Comput. Electromagn. Soc. J.
PD DEC
PY 2009
VL 24
IS 6
SI SI
BP 559
EP 566
PG 8
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA 572DU
UT WOS:000275808300004
ER
PT J
AU Dong, JW
Zaghloul, AI
Sun, RS
Reddy, CJ
Weiss, SJ
AF Dong, Junwei
Zaghloul, Amir I.
Sun, Rensheng
Reddy, C. J.
Weiss, Steven J.
TI Rotman Lens Amplitude, Phase, and Pattern Evaluations by Measurements
and Full Wave Simulations
SO APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL
LA English
DT Article
DE Microstrip Lens; Rotman Lens; MoM; FEKO; Mutual Coupling
AB Microwave lens' performance is depicted by several parameters such as phase error, amplitude taper, and array scan pattern etc. For decades, these parameters have been estimated by the geometry optics method that does not capture the mutual couplings within the lens geometry. Full wave simulation toolkits to conduct EM prediction are now available. However, using them to synthesize and optimize the electrical performance of Rotman lens is still relatively new. Several microwave lens full wave simulations have been attempted using different methods, such as FDTD, FEM, and FIT. They were reported from the perspectives of either phase or amplitude predictions at a single port or single frequency. However, the lens properties at multiple frequencies and for multiple beam ports using MoM have not been investigated. In this paper, we address such simulations using the planar Green's function in FEKO. The phase, amplitude and array factor across the frequency band for multiple beam ports are compared with the measured results, and their errors are evaluated. Prominent agreement between FEKO and measurement is demonstrated. The performance of a prototype lens is presented, followed by discussing few future aspects of lens optimization using full wave simulations.
C1 [Dong, Junwei; Zaghloul, Amir I.] Virginia Polytech Inst & State Univ, Dept Elect & Comp Engn, Blacksburg, VA 22043 USA.
[Sun, Rensheng; Reddy, C. J.] EM Software & Syst USA, Hampton, VA 23666 USA.
[Zaghloul, Amir I.; Weiss, Steven J.] USA, Res Lab, Adelphi, MD 20783 USA.
RP Dong, JW (reprint author), Virginia Polytech Inst & State Univ, Dept Elect & Comp Engn, Blacksburg, VA 22043 USA.
EM djwei@vt.edu; amirz@vt.edu; ray@emssusa.com; cjreddy@emssusa.com;
steven.weiss@us.army.mil
NR 9
TC 0
Z9 0
U1 0
U2 4
PU APPLIED COMPUTATIONAL ELECTROMAGNETICS SOC
PI UNIVERSITY
PA UNIV MISSISSIPPI, DEPT ELECTRICAL ENGINEERING, UNIVERSITY, MS 38677 USA
SN 1054-4887
J9 APPL COMPUT ELECTROM
JI Appl. Comput. Electromagn. Soc. J.
PD DEC
PY 2009
VL 24
IS 6
SI SI
BP 567
EP 576
PG 10
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA 572DU
UT WOS:000275808300005
ER
PT J
AU Weiss, S
Coburn, K
Kilic, O
AF Weiss, Steven
Coburn, Keefe
Kilic, Ozlem
TI FEKO Simulation of a Wedge Mounted Four Element Array Antenna
SO APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL
LA English
DT Article
DE FEKO; EMPicasso; patch array; monopulse array; conformal antenna
AB A four element patch array with main beam locations approaching endfire has been developed. The initial design was accomplished using EMAG's EMPicasso software. The array is intended to be used in a monopulse configuration on the sides of a wedge-like structure. As such, accurate estimations of the patterns need to be obtained when the antenna is mounted on the geometry of the wedge. These simulations were not possible with 2.5 dimensional software, such as EMPicasso (www.emagware.com). We present measured data as compared to simulations using FEKO (www.feko.info) software for the array on a wedge.
C1 [Weiss, Steven; Coburn, Keefe; Kilic, Ozlem] USA, Res Lab, Adelphi, MD 20783 USA.
RP Weiss, S (reprint author), USA, Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
EM sweiss@arl.army.mil
NR 10
TC 0
Z9 0
U1 0
U2 5
PU APPLIED COMPUTATIONAL ELECTROMAGNETICS SOC
PI UNIVERSITY
PA UNIV MISSISSIPPI, DEPT ELECTRICAL ENGINEERING, UNIVERSITY, MS 38677 USA
SN 1054-4887
J9 APPL COMPUT ELECTROM
JI Appl. Comput. Electromagn. Soc. J.
PD DEC
PY 2009
VL 24
IS 6
SI SI
BP 577
EP 583
PG 7
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA 572DU
UT WOS:000275808300006
ER
PT J
AU Levin, SW
Baker, EH
Gropman, A
Quezado, Z
Miao, N
Zhang, ZJ
Jollands, A
Di Capua, M
Caruso, R
Mukherjee, AB
AF Levin, Sondra W.
Baker, Eva H.
Gropman, Andrea
Quezado, Zenaide
Miao, Ning
Zhang, Zhongjian
Jollands, Alice
Di Capua, Matteo
Caruso, Rafael
Mukherjee, Anil B.
TI Subdural Fluid Collections in Patients With Infantile Neuronal Ceroid
Lipofuscinosis
SO ARCHIVES OF NEUROLOGY
LA English
DT Article
ID PALMITOYL-PROTEIN THIOESTERASE; TRAUMATIC BRAIN-INJURY;
NEURODEGENERATIVE DISEASE; YOUNG-CHILDREN; MRI EVALUATION; HEMATOMAS;
CHILDHOOD; DRUGS
AB Objective: To describe subdural fluid collections on magnetic resonance imaging as part of the natural history of infantile neuronal ceroid lipofuscinosis.
Design: Case series.
Setting: Program on Developmental Endocrinology and Genetics, The Clinical Center, National Institutes of Health, Bethesda, Maryland.
Patients: Patients with infantile neuronal ceroid lipofuscinosis with subdural fluid collections.
Main Outcome Measure: Neurodegeneration on magnetic resonance imaging.
Results: During an ongoing bench-to-bedside clinical investigation, magnetic resonance imaging examinations led to the incidental discovery of subdural fluid collections in 4 of 9 patients with infantile neuronal ceroid lipofuscinosis. No particular event (such as trauma) or change in symptoms was linked to this finding, which was already in the chronic phase when discovered. Of the 4 patients, I was followed up for 7 years, 2 for 4 years, and 1 for 2.5 years. Over time, these collections remained stable or decreased in size.
Conclusion: Recognition that subdural fluid collections are part of the infantile neuronal ceroid lipofuscinosis disease process may obviate the necessity of additional workup as well as therapeutic interventions in these chronically sick children.
C1 [Levin, Sondra W.] Walter Reed Army Med Ctr, Dept Pediat, Washington, DC 20307 USA.
[Baker, Eva H.; Mukherjee, Anil B.] NIH, Mark O Hatfield Clin Res Ctr, Dept Radiol, Bethesda, MD 20892 USA.
[Quezado, Zenaide; Miao, Ning] NIH, Dept Anesthesia & Surg Serv, Mark O Hatfield Clin Res Ctr, Bethesda, MD 20892 USA.
[Gropman, Andrea] Childrens Natl Med Ctr, Dept Neurol, Washington, DC 20010 USA.
[Jollands, Alice] Ninewells Hosp, Dept Pediat Neurol, Dundee DD1 9SY, Scotland.
[Di Capua, Matteo] Bambino Gesu Pediat Hosp, Div Child Neurol, Rome, Italy.
[Caruso, Rafael] NEI, Bethesda, MD 20892 USA.
RP Mukherjee, AB (reprint author), NIH, Mark O Hatfield Clin Res Ctr, Dept Radiol, Bldg 10,Room 9D42,10 Ctr Dr, Bethesda, MD 20892 USA.
EM mukherja@exchange.nih.gov
RI Quezado, Zenaide/O-4860-2016
OI Quezado, Zenaide/0000-0001-9793-4368
FU National Institute of Child Health and Human Development; National
Institutes of Health
FX This research was supported in full by the intramural program of the
National Institute of Child Health and Human Development, National
Institutes of Health.
NR 22
TC 3
Z9 3
U1 0
U2 0
PU AMER MEDICAL ASSOC
PI CHICAGO
PA 515 N STATE ST, CHICAGO, IL 60610-0946 USA
SN 0003-9942
J9 ARCH NEUROL-CHICAGO
JI Arch. Neurol.
PD DEC
PY 2009
VL 66
IS 12
BP 1567
EP 1571
PG 5
WC Clinical Neurology
SC Neurosciences & Neurology
GA 529YB
UT WOS:000272554200021
PM 20008666
ER
PT J
AU Shih, TM
Skovira, JW
McDonough, JH
AF Shih, Tsung-Ming
Skovira, Jacob W.
McDonough, John H.
TI Effects of 4-pyridine aldoxime on nerve agent-inhibited
acetylcholinesterase activity in guinea pigs
SO ARCHIVES OF TOXICOLOGY
LA English
DT Article
DE Acetylcholinesterase; Cholinesterase; Cyclosarin; Guinea pig; Methoxime;
Organophosphorus compounds; Oximes; Pralidoxime; 4-Pyridine aldoxime;
Sarin; VX
ID OXIMES; REACTIVATION
AB Methoxime (MMB-4) is a leading candidate oxime acetylcholinesterase (AChE) reactivator to replace pralidoxime (2-PAM) for therapeutic treatment of nerve agent intoxication. 4-Pyridine aldoxime (4-PA) is a synthetic starting material, a breakdown product, and a probable metabolite of MMB-4. There is a possibility that 4-PA may adversely interact with the nerve agent, thereby affecting nerve agent toxicity and biological AChE activity. This study evaluated the effects of 4-PA on sarin (GB)-, cyclosarin (GF)-, and VX-induced toxicity and AChE activity in blood, brain, and peripheral tissues of guinea pigs. Animals were pretreated with atropine methyl nitrate (1.0 mg/kg, im) 15 min prior to subcutaneous administration with 1.0x LD(50) of GB, GF, or VX and then treated 15 min after the administration of nerve agents with 4-PA (3.5, 7.0, or 14.0 mg/kg, im). The dose-response effects of 4-PA alone were also examined. Toxic signs and lethality were monitored, blood and tissues were collected, and AChE activities were determined at 60 min after nerve agent administration. Under the condition of this study, all animals exposed to nerve agents exhibited some degree of toxic signs such as salivation, lacrimation, rhinorrhea, and convulsions. 4-PA at the three doses tested neither induced toxic signs nor altered the toxicity of GB, GF, or VX at the 1.0x LD(50) exposure dose. Additionally, it did not modify the AChE activity in blood, brain, and peripheral tissues by itself or affect the AChE activity inhibited by a 1.0x LD(50) dose of these three nerve agents in guinea pigs.
C1 [Shih, Tsung-Ming; Skovira, Jacob W.; McDonough, John H.] USA, Med Res Inst Chem Def, Div Res, Pharmacol Branch,ATTN MCMR CDR P, Aberdeen Proving Ground, MD 21010 USA.
RP Shih, TM (reprint author), USA, Med Res Inst Chem Def, Div Res, Pharmacol Branch,ATTN MCMR CDR P, 3100 Ricketts Pt Rd, Aberdeen Proving Ground, MD 21010 USA.
EM tsungming.a.shih@us.army.mil
FU Medical Identification and Treatment Systems Joint Product Management
Office, U. S. Army Medical Research and Materiel Command
FX Excellent technical team work of John Guarisco, John O'Donnell, Anna
Smelley, Kerry van Shura, Cindy Acon-Chen, Shelby Brooks, Jessica
Chandler, Teresa Ferrara, Jeff Koenig, Megan Lyman, and Kristin Tarzia
is acknowledged. This research was supported by the Medical
Identification and Treatment Systems Joint Product Management Office, U.
S. Army Medical Research and Materiel Command.
NR 16
TC 4
Z9 4
U1 0
U2 2
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0340-5761
J9 ARCH TOXICOL
JI Arch. Toxicol.
PD DEC
PY 2009
VL 83
IS 12
BP 1083
EP 1089
DI 10.1007/s00204-009-0465-4
PG 7
WC Toxicology
SC Toxicology
GA 521KR
UT WOS:000271920700006
PM 19763542
ER
PT J
AU Convertino, VA
Rickards, CA
Lurie, KG
Ryan, KL
AF Convertino, Victor A.
Rickards, Caroline A.
Lurie, Keith G.
Ryan, Kathy L.
TI Hyperventilation in Response to Progressive Reduction in Central Blood
Volume to Near Syncope
SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE
LA English
DT Article
DE hemorrhagic shock; lower body negative pressure; hemodynamic
decompensation; minute ventilation; respiratory rate; tidal volume
ID ORGAN PERFUSION PRESSURES; BODY NEGATIVE-PRESSURE; CARDIAC-ARREST;
CENTRAL HYPOVOLEMIA; NONINVASIVE ASSESSMENT; OXYGEN-SATURATION;
THRESHOLD DEVICE; RESPIRATORY RATE; EARLY PREDICTION; TRAUMA PATIENTS
AB CONVERTINO VA, RICKARDS CA, LURIE KG, RYAN KL. Hyperventilation in response to progressive reduction in central blood volume to near syncope. Aviat Space Environ Med 2009; 80:1012-7.
Introduction: There is little evidence to support the usefulness in monitoring respiration during casualty triage and transport as an early indicator of hemorrhage severity and trauma patient outcome. We, therefore, tested the hypothesis that hyperventilation can be elicited by progressive reductions in central blood volume independent of metabolic stimuli. Methods: Progressive central hypovolemia was induced in 10 healthy subjects (5 men, 5 women) by applying lower body negative pressure (LBNP). The LBNP protocol consisted of a 5-min controlled rest period (0% LBNP) followed by progressive 5-min chamber decompressions Until the onset of hemodynamic decompensation (LBNP(max)). During each LBNP stage, total minute ventilation volume ((V) over dot(E)), tidal volume (V(T)), respiratory rate, oxygen uptake ((V) over dot(2)), end-tidal CO(2) (E(T)CO(2)), arterial oxygen saturation (S(p)O(2)), and venous blood pH and lactate were measured. Results: Compared with baseline, (V) over dotO(2), S(p)O(2), PO(2), PCO(2), pH, and lactate were unaltered throughout LBNP. (V) over dot(E) Was unaltered through 80% of LBNP tolerance, but increased by 54% during LBNP(max) as a result primarily of elevated V(T), while E(T)CO(2) was reduced. Conclusions: increased (V) over dot(E) at LBNP(max) combined with reduced E(T)CO(2) in the absence of changes in blood and systemic metabolic stimuli support the hypothesis that severe reductions in central blood volume drive hyperventilation. The endogenous "respiratory pump" may be a protective strategy to optimize cardiac filling in conditions of central hypovolemic hypotension, but its late appearance indicates that respiratory parameters may not be useful as a clinical metric for early prediction of patient outcome during hemorrhage.
C1 [Convertino, Victor A.; Rickards, Caroline A.; Lurie, Keith G.; Ryan, Kathy L.] USA, Inst Surg Res, Ft Sam Houston, TX 78234 USA.
RP Convertino, VA (reprint author), USA, Inst Surg Res, Bldg 3611,3400 Rawley E Chambers Ave, Ft Sam Houston, TX 78234 USA.
EM victor.convertino@amedd.army.mil
NR 31
TC 22
Z9 22
U1 0
U2 4
PU AEROSPACE MEDICAL ASSOC
PI ALEXANDRIA
PA 320 S HENRY ST, ALEXANDRIA, VA 22314-3579 USA
SN 0095-6562
J9 AVIAT SPACE ENVIR MD
JI Aviat. Space Environ. Med.
PD DEC
PY 2009
VL 80
IS 12
BP 1012
EP 1017
DI 10.3357/ASEM.2598.2009
PG 6
WC Public, Environmental & Occupational Health; Medicine, General &
Internal; Sport Sciences
SC Public, Environmental & Occupational Health; General & Internal
Medicine; Sport Sciences
GA 530ZV
UT WOS:000272632400003
PM 20027847
ER
PT J
AU Hu, X
Lee, MS
Wallqvist, A
AF Hu, Xin
Lee, Michael S.
Wallqvist, Anders
TI Interaction of the Disordered Yersinia Effector Protein YopE with Its
Cognate Chaperone SycE
SO BIOCHEMISTRY
LA English
DT Article
ID III SECRETION; BINDING; SYSTEM
AB We describe an efficient approach to model the binding interaction of the disordered effector protein to its cognate chaperone in the type III secretion system (T3SS). Starting from de novo models, we generated ensembles of unfolded conformations of the Yersinia effector YopE using REMD simulations and docked them to the chaperone SycE using a multistep protein docking strategy. The predicted YopE/SycE complex was in good agreement with the experimental structure. The ability Of Our computational protocol to mimic the structural transition upon chaperone binding opens up the possibility Of Studying the underlying specificity of chaperone/effector interactions and devising strategies for interfering with T3SS transport.
C1 [Hu, Xin; Lee, Michael S.; Wallqvist, Anders] USA, Biotechnol HPC Software Applicat Inst, Telemed & Adv Technol Res Ctr, Med Res & Mat Command, Ft Detrick, MD 21702 USA.
[Lee, Michael S.] USA, Computat Sci & Engn Branch, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
RP Wallqvist, A (reprint author), USA, Biotechnol HPC Software Applicat Inst, Telemed & Adv Technol Res Ctr, Med Res & Mat Command, Ft Detrick, MD 21702 USA.
EM awallqvist@bioanalysis.org
OI wallqvist, anders/0000-0002-9775-7469
FU U.S. Department of Defense High Performance Computing Modernization
Program (HPCMP)
FX This work was sponsored by the U.S. Department of Defense High
Performance Computing Modernization Program (HPCMP), under the High
Performance Computing Software Applications Institutes (HSAI)
initiative.
NR 15
TC 4
Z9 4
U1 1
U2 3
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0006-2960
J9 BIOCHEMISTRY-US
JI Biochemistry
PD DEC 1
PY 2009
VL 48
IS 47
BP 11158
EP 11160
DI 10.1021/bi9017347
PG 3
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 521UV
UT WOS:000271950900004
PM 19877667
ER
PT J
AU Szilvay, GR
Blenner, MA
Shur, O
Cropek, DM
Banta, S
AF Szilvay, Geza R.
Blenner, Mark A.
Shur, Oren
Cropek, Donald M.
Banta, Scott
TI A FRET-Based Method for Probing the Conformational Behavior of an
Intrinsically Disordered Repeat Domain from Bordetella pertussis
Adenylate Cyclase
SO BIOCHEMISTRY
LA English
DT Article
ID GREEN FLUORESCENT PROTEIN; NATIVELY UNFOLDED PROTEINS; ENERGY-TRANSFER;
CRYSTAL-STRUCTURE; SERRATIA-MARCESCENS; CALCIUM; BINDING; TOXIN; DESIGN;
MOTIF
AB A better understanding of the conformational changes exhibited by intrinsically disordered proteins is necessary as we continue to unravel their myriad biological functions. In repeats in toxin (RTX) domains, calcium binding triggers the natively unstructured domain to adopt a beta roll structure. Here we present an in vitro Forster resonance energy transfer (FRET)-based method for the investigation of the conformational behavior of all RTX domain from the Bordetella pertussis adenylate cyclase consisting of mile repeat units. Equilibrium and stopped-flow FRET between fluorescent proteins, attached to the termini of the domain, were measured in an analysis of the end-to-end distance changes in the RTX domain. The method was complemented with circular dichroism spectroscopy, tryptophan fluorescence, and bis-ANS dye binding. High ionic strength was observed to decrease the calcium affinity of the RTX domain. A truncation and single amino acid mutations yielded insights into the structural determinants of beta roll formation. Mutating the conserved Asp residue in one of the nine repeats significantly reduced the affinity of the domains for calcium ions. Removal of the sequences flanking the repeat domain prevented folding, but replacing them with fluorescent proteins restored the conformational behavior, suggesting an entropic stabilization. The FRET-based method is a useful technique that complements other low-resolution techniques for investigating the dynamic conformational behavior of the RTX domain and other intrinsically disordered protein domains.
C1 [Szilvay, Geza R.; Blenner, Mark A.; Shur, Oren; Banta, Scott] Columbia Univ, Dept Chem Engn, New York, NY 10027 USA.
[Cropek, Donald M.] USA, Engineer Res & Dev Ctr, Construct Engn Res Lab, Champaign, IL 61822 USA.
RP Banta, S (reprint author), Columbia Univ, Dept Chem Engn, 500 W 120th St, New York, NY 10027 USA.
EM sbanta@cheme.columbia.edu
RI Szilvay, Geza/G-3025-2014
OI Szilvay, Geza/0000-0002-2718-751X
FU Defense Threat Reduction Agency; Academy of Finland; Alfred Kordelin
Foundation
FX This work was funded by the Defense Threat Reduction Agency, the Academy
of Finland (G.R.S.), and the Alfred Kordelin Foundation (G. R. S.).
NR 49
TC 22
Z9 25
U1 0
U2 8
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0006-2960
J9 BIOCHEMISTRY-US
JI Biochemistry
PD DEC 1
PY 2009
VL 48
IS 47
BP 11273
EP 11282
DI 10.1021/bi901447j
PG 10
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 521UV
UT WOS:000271950900016
PM 19860484
ER
PT J
AU Li, B
Yoshii, T
Hafeman, AE
Nyman, JS
Wenke, JC
Guelcher, SA
AF Li, Bing
Yoshii, Toshitaka
Hafeman, Andrea E.
Nyman, Jeffry S.
Wenke, Joseph C.
Guelcher, Scott A.
TI The effects of rhBMP-2 released from biodegradable
polyurethane/microsphere composite scaffolds on new bone formation in
rat femora
SO BIOMATERIALS
LA English
DT Article
DE BMP (bone morphogenetic protein); Bone regeneration; Drug delivery; In
vivo test; Polyurethane
ID BETA-TRICALCIUM PHOSPHATE; FIBROBLAST-GROWTH-FACTOR; IN-VITRO
DEGRADATION; MORPHOGENETIC PROTEIN-2; DRUG-RELEASE; LONG-TERM; DELIVERY;
POLYURETHANES; REGENERATION; CELLS
AB Scaffolds prepared from biodegradable polyurethanes (PUR) have been investigated as a supportive matrix and delivery system for skin, cardiovascular, and bone tissue engineering. While previous studies have suggested that PUR scaffolds are biocompatible and moderately osteoconductive, the effects of encapsulated osteoinductive molecules, such as recombinant human bone morphogenetic protein (rhBMP-2), on new bone formation have not been investigated for this class of biomaterials. The objective of this study was to investigate the effects of different rhBMP-2 release strategies on new bone formation in PUR scaffolds implanted in rat femoral plug defects. In the simplest approach, rhBMP-2 was added as a dry powder prior to the foaming reaction, which resulted in a burst release of 35% followed by a sustained release for 21 days. Encapsulation of rhBMP-2 in either 1.3-micron or 114-micron PLGA microspheres prior to the foaming reaction reduced the burst release. At 4 weeks post-implantation, all rhBMP-2 treatment groups enhanced new bone formation relative to the scaffolds without rhBMP-2. Scaffolds incorporating rhBMP-2 powder promoted the most extensive new bone formation, while scaffolds incorporating rhBMP-2 encapsulated in 1.3-micron microspheres, which exhibited the lowest burst release, promoted the least extensive new bone formation. Thus our observations suggest that an initial burst release followed by sustained release is better for promoting new bone formation. (C) 2009 Elsevier Ltd. All rights reserved.
C1 [Li, Bing; Hafeman, Andrea E.; Guelcher, Scott A.] Vanderbilt Univ, Dept Chem & Biomol Engn, Nashville, TN 37235 USA.
[Li, Bing; Yoshii, Toshitaka; Hafeman, Andrea E.; Nyman, Jeffry S.; Guelcher, Scott A.] Vanderbilt Univ, Med Ctr, Ctr Bone Biol, Nashville, TN 37235 USA.
[Yoshii, Toshitaka; Nyman, Jeffry S.] Vanderbilt Univ, Med Ctr, Dept Orthopaed & Rehabil, Nashville, TN 37232 USA.
[Nyman, Jeffry S.] Tennessee Valley Healthcare Syst, Dept Vet Affairs, Nashville, TN 37232 USA.
[Wenke, Joseph C.] USA, Inst Surg Res, Regenerat Med Task Area, Ft Sam Houston, TX 78234 USA.
RP Guelcher, SA (reprint author), Vanderbilt Univ, Dept Chem & Biomol Engn, 2301 Vanderbilt Pl,VU Stn B 351604, Nashville, TN 37235 USA.
EM bing.li@vanderbilt.edu; toshitaka.yoshii@vanderbilt.edu;
andrea.e.hafeman@vanderbilt.edu; jeffry.s.nyman@Van-derbilt.Edu;
joseph.wenke@us.army.mil; scott.guelcher@vanderbilt.edu
RI li, bing/D-3775-2009; Nyman, Jeffry/L-5736-2013
FU Orthopaedic Trauma Research Program [DOD-W81XWH-07-1-0211]; Armed Forces
Institute of Regenerative Medicine (sub-contract from the
Rutgers-Cleveland Clinic Consortium [DOD-W81XWH-08-2-0034]; Vanderbilt
University School of Engineering; Vanderbilt Center for Bone Biology
FX This work was funded by the Orthopaedic Trauma Research Program
(DOD-W81XWH-07-1-0211), the Armed Forces Institute of Regenerative
Medicine (sub-contract from the Rutgers-Cleveland Clinic Consortium
Award DOD-W81XWH-08-2-0034), Vanderbilt University School of
Engineering, and the Vanderbilt Center for Bone Biology. The authors
also thank Professor Jeffrey Hollinger at Carnegie Mellon University for
the gift of rhBMP-2.
NR 52
TC 86
Z9 90
U1 3
U2 40
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0142-9612
J9 BIOMATERIALS
JI Biomaterials
PD DEC
PY 2009
VL 30
IS 35
BP 6768
EP 6779
DI 10.1016/j.biomaterials.2009.08.038
PG 12
WC Engineering, Biomedical; Materials Science, Biomaterials
SC Engineering; Materials Science
GA 518BP
UT WOS:000271665300010
PM 19762079
ER
PT J
AU Yenesew, A
Twinomuhwezi, H
Kabaru, JM
Akala, HM
Kiremire, BT
Heydenreich, M
Peter, MG
Eyase, FL
Waters, NC
Walsh, DS
AF Yenesew, Abiy
Twinomuhwezi, Hannington
Kabaru, Jacques M.
Akala, Hoseah M.
Kiremire, Bernard T.
Heydenreich, Matthias
Peter, Martin G.
Eyase, Fredrick L.
Waters, Norman C.
Walsh, Douglas S.
TI ANTIPLASMODIAL AND LARVICIDAL FLAVONOIDS FROM DERRIS TRIFOLIATA
SO BULLETIN OF THE CHEMICAL SOCIETY OF ETHIOPIA
LA English
DT Article
DE Derris trifoliata; Leguminosae; Flavanone; (S)-Lupinifolin 4 '-methyl
ether; Lupinifolin; Antiplasmodial; Rotenoid; Larvicide; Aedes aegypti
ID STEM BARK; FLAVANONES
AB From the dichloromethane-methanol (1:1) extract of the seed pods of Derris trifoliata, a new flavanone derivative (S)-lupinifolin 4'-methyl ether was isolated. In addition, the known flavonoids lupinifolin and rotenone were identified. The structures were determined on the basis of spectroscopic evidence. Lupinfolin showed moderate in vitro antiplasmodial activity against the D6 (chloroquine-sensitive) and W2 (chloroquine-resistant) strains of Plasmodium falciparum. The different parts of this plant showed larvicidal activities against Aedes aegypti and rotenoids were identified as the active principles.
C1 [Yenesew, Abiy; Twinomuhwezi, Hannington] Univ Nairobi, Dept Chem, Nairobi, Kenya.
[Twinomuhwezi, Hannington; Kiremire, Bernard T.] Makerere Univ, Dept Chem, Kampala, Uganda.
[Kabaru, Jacques M.] Univ Nairobi, Sch Biol Sci, Nairobi, Kenya.
[Akala, Hoseah M.; Eyase, Fredrick L.; Waters, Norman C.; Walsh, Douglas S.] USA, Med Res Unit Kenya, APO, AE 09831 USA.
[Heydenreich, Matthias; Peter, Martin G.] Univ Potsdam, Inst Chem, D-14415 Potsdam, Germany.
RP Yenesew, A (reprint author), Univ Nairobi, Dept Chem, POB 30197, Nairobi, Kenya.
EM ayenesew@uonbi.ac.ke
OI Heydenreich, Matthias/0000-0003-1639-4959
FU African Institute for Capacity Development (AICAD), Japan; Deutsche
Forschungsgemeinschaft, Germany [Pe 264/14-5]; Bundesministerium fuer
Zusammenarbeit; [Pe-264/14-6]
FX We acknowledge support by the African Institute for Capacity Development
(AICAD), Japan, the Deutsche Forschungsgemeinschaft, Germany, Grant No.
Pe 264/14-5 and by the Bundesministerium fuer Zusammenarbeit, Grant No.
Pe-264/14-6. Mr. S.G. Mathenge is highly appreciated for the
identification of the plant material.
NR 11
TC 9
Z9 10
U1 1
U2 3
PU CHEM SOC ETHIOPIA
PI ADDIS ABABA
PA PO BOX 32934, ADDIS ABABA, 00, ETHIOPIA
SN 1011-3924
J9 B CHEM SOC ETHIOPIA
JI Bull. Chem. Soc. Ethiop.
PD DEC
PY 2009
VL 23
IS 3
BP 409
EP 414
PG 6
WC Chemistry, Multidisciplinary
SC Chemistry
GA 536DZ
UT WOS:000273024300010
ER
PT J
AU Wolf, SE
AF Wolf, Steven E.
TI The year in burns 2008
SO BURNS
LA English
DT Review
DE Burn literature; Review; 2008
ID INTENSIVE INSULIN THERAPY; VOLTAGE ELECTRICAL INJURY; ACUTE KIDNEY
INJURY; THERMAL-INJURIES; DRESSING CHANGES; NATIONAL SAMPLE; MORTALITY
RISK; ADULT PATIENTS; SERUM-LEVELS; MAJOR BURNS
AB For 2008, approximately 1200 original burn research articles were published in scientific journals using the English language. This article reviews those with the most impact on burn treatment according to the Editor of one of the major journals (Burns). As in the previous year's review, articles were divided into the following topic areas: epidemiology, wound characterisation, critical care physiology, inhalation injury, infection, metabolism and nutrition, psychological considerations, pain management, rehabilitation, and burn reconstruction. Each selected article is mentioned briefly with editorial comment. (C) 2009 Elsevier Ltd and ISBI. All rights reserved.
C1 [Wolf, Steven E.] Univ Texas Hlth Sci Ctr San Antonio, Dept Surg, San Antonio, TX 78229 USA.
[Wolf, Steven E.] USA, Inst Surg Res, San Antonio, TX 78229 USA.
RP Wolf, SE (reprint author), Univ Texas Hlth Sci Ctr San Antonio, Dept Surg, 7703 Floyd Curl, San Antonio, TX 78229 USA.
EM wolfs@uthscsa.edu
OI Wolf, Steven/0000-0003-2972-3440
NR 96
TC 3
Z9 4
U1 0
U2 8
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0305-4179
J9 BURNS
JI Burns
PD DEC
PY 2009
VL 35
IS 8
BP 1057
EP 1070
DI 10.1016/j.burns.2009.09.001
PG 14
WC Critical Care Medicine; Dermatology; Surgery
SC General & Internal Medicine; Dermatology; Surgery
GA 526UY
UT WOS:000272321400001
PM 19854579
ER
PT J
AU Murray, CK
Holmes, RL
Ellis, MW
Mende, K
Wolf, SE
McDougal, LK
Guymon, CH
Hospenthal, DR
AF Murray, Clinton K.
Holmes, Robert L.
Ellis, Michael W.
Mende, Katrin
Wolf, Steven E.
McDougal, Linda K.
Guymon, Charles H.
Hospenthal, Duane R.
TI Twenty-five year epidemiology of invasive methicillin-resistant
Staphylococcus aureus (MRSA) isolates recovered at a burn center
SO BURNS
LA English
DT Article
DE Burn center; Epidemiology; Methicillin-resistant Staphylococcus aureus;
Antimicrobial susceptibility
ID PANTON-VALENTINE LEUCOCIDIN; FIELD GEL-ELECTROPHORESIS; WOUND
INFECTIONS; USA300; CLONE; UNIT; VANCOMYCIN; EVOLUTION; STRAINS; HISTORY
AB Over the past two decades, an epidemiologic emergence of methicillin-resistant Staphylococcus aureus (MRSA) infections has occurred from that of primarily hospital-associated to community-associated. This emergence change has involved MRSA of different pulsed-field types (PFT), with different virulence genes and antimicrobial resistance patterns. in this study we, evaluate the changes in PFT and antimicrobial resistance epidemiology of invasive MRSA isolates over 25 years at a single burn unit. Isolates were tested by pulsed-field gel electrophoresis (PFGE), broth microdilution antimicrobial susceptibility testing, and PCR for the virulence factors Panton-Valentine leukocidin (PVL) and arginine catabolic mobile element (ACME), and the resistance marker staphylococcal chromosomal cassette mec (SCCmec). Forty isolates were screened, revealing stable vancomycin susceptibility MIC without changes over time but decreasing susceptibility to clindamycin and ciprofloxacin. The majority of PFGE types were MRSA USA800 carrying the SCCmec I element and USA100 carrying the SCCmec II element. No strains typically associated with community-associated MRSA, USA300 or USA400, were found. USA800 isolates were predominately found in the 1980s, USA600 isolates were primarily found in the 1990s, and USA100 isolates were found in the 2000s. The PVL gene was present in only one isolate, the sole USA500 isolate, from 1987. The virulence marker ACME was not detected in any of the isolates. Overall, a transition was found in hospital-associated MRSA isolates over the 25 years, but no introduction of community-associated MRSA isolates into this burn unit. Continued active surveillance and aggressive infection control strategies are recommended to prevent the spread of community-acquired MRSA to this burn unit. Published by Elsevier Ltd and ISBI
C1 [Murray, Clinton K.] Brooke Army Med Ctr, San Antonio Mil Med Ctr, Infect Dis Serv, Ft Sam Houston, TX 78234 USA.
[Murray, Clinton K.; Ellis, Michael W.; Hospenthal, Duane R.] Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA.
[Holmes, Robert L.] Keesler Med Ctr, Biloxi, MS USA.
[Mende, Katrin] Infect Dis Clin Res Program, Bethesda, MD USA.
[Wolf, Steven E.; Guymon, Charles H.] USA, Inst Surg Res, Ft Sam Houston, TX 78234 USA.
[McDougal, Linda K.] Ctr Dis Control & Prevent, Atlanta, GA USA.
RP Murray, CK (reprint author), Brooke Army Med Ctr, San Antonio Mil Med Ctr, Infect Dis Serv, 3851 Roger Brooke Dr, Ft Sam Houston, TX 78234 USA.
EM Clinton.Murray@amedd.army.mil
RI Valle, Ruben/A-7512-2013;
OI Wolf, Steven/0000-0003-2972-3440
NR 28
TC 18
Z9 19
U1 0
U2 2
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0305-4179
J9 BURNS
JI Burns
PD DEC
PY 2009
VL 35
IS 8
BP 1112
EP 1117
DI 10.1016/j.burns.2009.02.013
PG 6
WC Critical Care Medicine; Dermatology; Surgery
SC General & Internal Medicine; Dermatology; Surgery
GA 526UY
UT WOS:000272321400008
PM 19477601
ER
PT J
AU Villines, TC
O'Malley, PG
Feuerstein, IM
Thomas, S
Taylor, AJ
AF Villines, Todd C.
O'Malley, Patrick G.
Feuerstein, Irwin M.
Thomas, Susan
Taylor, Allen J.
TI Does Prolonged Warfarin Exposure Potentiate Coronary Calcification in
Humans? Results of the Warfarin and Coronary Calcification Study
SO CALCIFIED TISSUE INTERNATIONAL
LA English
DT Article
DE Warfarin; Vascular calcification; Coronary calcification; Matrix Gla
protein; Vitamin K dependent protein
ID MATRIX GLA PROTEIN; MUSCLE-CELL CALCIFICATION; K-DEPENDENT CARBOXYLASE;
VITAMIN-K; VASCULAR CALCIFICATION; COMPUTED-TOMOGRAPHY; ARTERIAL
CALCIFICATION; CREATININE CLEARANCE; KEUTEL-SYNDROME; HEART-DISEASE
AB Warfarin has been shown to accelerate vascular calcification in experimental animals, and possibly humans, through inhibition of the vitamin K-dependent protein matrix gla protein, a potent inhibitor of tissue calcification. We performed a cross-sectional analysis of the extent of coronary artery calcification (CAC) in patients without coronary heart disease, currently taking or referred for warfarin therapy. The primary end point was severity of CAC measured by electron beam computed tomography attributed to duration of warfarin use, after adjustment for cardiovascular risk factors. Seventy patients (46 men, mean age 68 +/- A 13 years) were enrolled from three groups of warfarin use duration: (1) < 6 months (n = 31, mean duration 1 +/- A 1 months), (2) 6-24 months (n = 11), and (3) > 24 months (n = 28, mean 67 +/- A 40 months). Overall, the mean total CAC score (Agatston) was 293 +/- A 560: group 1 (175 +/- A 285), group 2 (289 +/- A 382), and group 3 (426 +/- A 789). In univariate analysis, there was a nonsignificant trend to increased CAC with increasing warfarin exposure (P = 0.18). Bivariate analysis revealed no correlation between warfarin duration and CAC score (r = 0.075, P = 0.537). Linear regression for the independent variable coronary calcium score controlling for warfarin treatment duration and intensity (duration of warfarin use months x mean INR), Framingham risk score, and creatinine clearance showed that only the Framingham risk score was associated with CAC (P = 0.001). Among patients without known coronary heart disease, duration of warfarin exposure was not associated with extent of coronary calcification.
C1 [Villines, Todd C.; Thomas, Susan; Taylor, Allen J.] Walter Reed Army Med Ctr, Dept Med, Serv Cardiol, Washington, DC 20307 USA.
[Feuerstein, Irwin M.] Walter Reed Army Med Ctr, Dept Radiol, Washington, DC 20307 USA.
[Villines, Todd C.; O'Malley, Patrick G.; Feuerstein, Irwin M.; Taylor, Allen J.] Uniformed Serv Univ Hlth Sci, Dept Med, Bethesda, MD 20814 USA.
RP Villines, TC (reprint author), Walter Reed Army Med Ctr, Dept Med, Serv Cardiol, Bldg 2,Room 4A,6900 Georgia Ave NW, Washington, DC 20307 USA.
EM todd.villines@amedd.army.mil
OI Villines, Todd/0000-0003-2674-3702
NR 34
TC 25
Z9 25
U1 0
U2 2
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0171-967X
J9 CALCIFIED TISSUE INT
JI Calcif. Tissue Int.
PD DEC
PY 2009
VL 85
IS 6
BP 494
EP 500
DI 10.1007/s00223-009-9300-4
PG 7
WC Endocrinology & Metabolism
SC Endocrinology & Metabolism
GA 527NI
UT WOS:000272373400003
PM 19847375
ER
PT J
AU Finkel, AG
Yerry, J
AF Finkel, A. G.
Yerry, J.
TI Blast-related traumatic brain injury and military headache: what are
they and how do they relate?
SO CEPHALALGIA
LA English
DT Meeting Abstract
CT 14th Congress of the International-Headache-Society
CY SEP 10-13, 2009
CL Philadelphia, PA
SP Int Headache Soc
C1 [Finkel, A. G.; Yerry, J.] Womack Army Med Ctr, Traumat Brain Injury Ctr, Ft Bragg, NC USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0333-1024
J9 CEPHALALGIA
JI Cephalalgia
PD DEC
PY 2009
VL 29
IS 12
BP 1363
EP 1364
PG 2
WC Clinical Neurology; Neurosciences
SC Neurosciences & Neurology
GA 517PP
UT WOS:000271628700052
ER
PT J
AU Finkel, AG
Yerry, J
AF Finkel, A. G.
Yerry, J.
TI Case report: mild traumatic brain injury, episodic headache and abnormal
MRI findings in a soldier with multiple blast related injuries
SO CEPHALALGIA
LA English
DT Meeting Abstract
CT 14th Congress of the International-Headache-Society
CY SEP 10-13, 2009
CL Philadelphia, PA
SP Int Headache Soc
C1 [Finkel, A. G.; Yerry, J.] Womack Army Med Ctr, Traumat Brain Injury Ctr, Ft Bragg, NC USA.
NR 0
TC 0
Z9 0
U1 0
U2 1
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0333-1024
J9 CEPHALALGIA
JI Cephalalgia
PD DEC
PY 2009
VL 29
IS 12
BP 1365
EP 1365
PG 1
WC Clinical Neurology; Neurosciences
SC Neurosciences & Neurology
GA 517PP
UT WOS:000271628700056
ER
PT J
AU Blakely, JN
Stahl, MT
Corron, NJ
AF Blakely, Jonathan N.
Stahl, Mark T.
Corron, Ned J.
TI Time-shifted synchronization of chaotic oscillator chains without
explicit coupling delays
SO CHAOS
LA English
DT Article
ID GENERALIZED SYNCHRONIZATION; LAG SYNCHRONIZATION; SYSTEMS; PHASE
AB We examine chains of unidirectionally coupled oscillators in which time-shifted synchronization occurs without explicit delays in the coupling. In numerical simulations and in an experimental system of electronic oscillators, we examine the time shift and the degree of distortion (primarily in the form of attenuation) of the waveforms of the oscillators located far from the drive oscillator. Surprisingly, under weak coupling we observe minimal attenuation in spite of a significant total time shift. In contrast, at higher coupling strengths the observed attenuation increases dramatically and approaches the value predicted by an analytically derived estimate. In this regime, we verify directly that generalized synchronization is maintained over the entire chain length despite severe attenuation. These results suggest that weak coupling generally may produce higher quality synchronization in systems for which truly identical synchronization is not possible. [doi: 10.1063/1.3269610]
C1 [Blakely, Jonathan N.; Stahl, Mark T.; Corron, Ned J.] USA, RDECOM, RDMR WSS, Redstone Arsenal, AL 35898 USA.
RP Blakely, JN (reprint author), USA, RDECOM, RDMR WSS, Redstone Arsenal, AL 35898 USA.
OI Blakely, Jonathan/0000-0002-9772-582X; Corron, Ned/0000-0002-3232-5024
NR 22
TC 3
Z9 3
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 1054-1500
EI 1089-7682
J9 CHAOS
JI Chaos
PD DEC
PY 2009
VL 19
IS 4
AR 043117
DI 10.1063/1.3269610
PG 6
WC Mathematics, Applied; Physics, Mathematical
SC Mathematics; Physics
GA 538YX
UT WOS:000273221500018
PM 20059213
ER
PT J
AU Zottola, MA
Beigel, K
Soni, SD
Lawrence, R
AF Zottola, Mark A.
Beigel, Keith
Soni, Sunil-Datta
Lawrence, Richard
TI Disulfides as Cyanide Antidotes: Evidence for a New In Vivo Oxidative
Pathway for Cyanide Detoxification
SO CHEMICAL RESEARCH IN TOXICOLOGY
LA English
DT Article
ID SULFANE SULFUR; RHODANESE; MECHANISM; THIOSULFATE; CLEAVAGE; CYSTINE;
LIVER
AB It is known that cyanide is converted to thiocyanate in the presence of the enzyme rhodanese. The enzyme is activated by sulfur transfer from an appropriate Sulfur donor. The activated enzyme then binds cyanide and transfers the sulfur atom to cyanide to form thiocyanate. This project began as an exploration of the ability Of disulfides to act as sulfur donors in the rhodanese-mediated detoxification of cyanide. To our surprise, and contrary to expectations based on efficacy studies in Vivo, Our in vitro results showed that disulfides are rather poor sulfur donors. The transfer of a sulfur atom from a disulfide to the enzyme Must occur via cleavage of a carbon-sulfur bond either of the original disulfide or in a mixed disulfide arising front the reaction of rhodanese with the original disulfide. Extending the reaction time and addition of chloride anion (a nucleophile) did not significantly change the results of the experiment. Using ultrasound as a means of accelerating bond cleavage also had a minimal effect. Those results ruled out cleavage of the carbon-sulfur bond in the original disulfide but did not preclude formation of a mixed disulfide. S-Methyl methylthiosulfonate (MTSO) was used to determine whether a mixed disulfide, if formed, would result ill transfer of a sulfur atom to rhodanese. While no thiocyanate was formed in the reaction between cyanide and rhodanese exposed to MTSO, NMR analysis revealed that MTSO reacted directly with cyanide anion to form methyl thiocyanate. This result reveals. The body's possible use of oxidized disulfides as it first line of defense against cyanide intoxication. The oxidation of disulfides to the corresponding thiosulfinate or thiosulfate will result in facilitating their reaction With other nucleophiles. The reaction of an oxidized disulfide with a sulfur nucleophile front glutathione could be a plausible origin for the cyanide metabolite 2-aminothiazoline-4-carboxylic acid.
C1 [Zottola, Mark A.; Beigel, Keith; Soni, Sunil-Datta; Lawrence, Richard] USA, Med Res Inst Chem Def, Aberdeen Proving Ground, MD 21010 USA.
[Zottola, Mark A.] Univ Alabama, Dept Chem, Birmingham, AL 35294 USA.
RP Zottola, MA (reprint author), USA, Med Res Inst Chem Def, 3100 Ricketts Point Rd,Edgewood Area Aberdeen Pro, Aberdeen Proving Ground, MD 21010 USA.
NR 24
TC 10
Z9 10
U1 0
U2 3
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0893-228X
J9 CHEM RES TOXICOL
JI Chem. Res. Toxicol.
PD DEC
PY 2009
VL 22
IS 12
BP 1948
EP 1953
DI 10.1021/tx900258m
PG 6
WC Chemistry, Medicinal; Chemistry, Multidisciplinary; Toxicology
SC Pharmacology & Pharmacy; Chemistry; Toxicology
GA 533UW
UT WOS:000272851900010
PM 19891443
ER
PT J
AU Zollinger, WD
Moran, EE
Schmiel, DH
AF Zollinger, Wendell D.
Moran, Elizabeth E.
Schmiel, Deborah H.
TI Characterization of an Antibody Depletion Assay for Analysis of
Bactericidal Antibody Specificity
SO CLINICAL AND VACCINE IMMUNOLOGY
LA English
DT Article
ID B NEISSERIA-MENINGITIDIS; MEMBRANE VESICLE VACCINE; MENINGOCOCCAL
DISEASE; COMPLEMENT SOURCE; SERUM; IMMUNOGENICITY; SAFETY; PROTECTION;
RESISTANCE; RESPONSES
AB Serum bactericidal antibodies are important for protection against systemic Neisseria meningitidis infections. Consequently, identifying the specific targets of bactericidal antibodies is important for understanding protective immunity to meningococcal disease and for vaccine development and evaluation. We have developed a new assay that can be used to investigate the specificity of serum bactericidal antibodies. Prior to testing for bactericidal activity, antibodies specific for a given antigen or group of antigens are depleted from a serum sample by incubation with the antigen(s) bound to the wells of a 96-well microplate. A dilution series of the antigen is bound to the plate to assess the effectiveness of the antigen in removing the bactericidal antibodies. Removal of antibodies with solid-phase antigen prior to bactericidal testing avoids depletion of complement by soluble immune complexes that can form when soluble antigen is present in the bactericidal test mixture ( direct inhibition). The parameters associated with this assay are investigated and compared with those associated with a direct-inhibition assay. The bactericidal depletion assay can be an effective tool for studying the specificity of serum bactericidal antibodies.
C1 [Zollinger, Wendell D.] Walter Reed Army Inst Res, Div Bacterial & Rickettsial Dis, Silver Spring, MD 20910 USA.
RP Zollinger, WD (reprint author), Walter Reed Army Inst Res, Div Bacterial & Rickettsial Dis, 503 Robert Grant Ave, Silver Spring, MD 20910 USA.
EM wendell.zollinger@us.army.mil
RI Moran, Elizabeth/A-9384-2011; Zollinger, Wendell/B-2887-2011; Schmiel,
Deborah/B-2875-2011
NR 24
TC 8
Z9 9
U1 0
U2 0
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 1556-6811
J9 CLIN VACCINE IMMUNOL
JI Clin. Vaccine Immunol.
PD DEC
PY 2009
VL 16
IS 12
BP 1789
EP 1795
DI 10.1128/CVI.00255-09
PG 7
WC Immunology; Infectious Diseases; Microbiology
SC Immunology; Infectious Diseases; Microbiology
GA 524QG
UT WOS:000272157200010
PM 19828765
ER
PT J
AU Petersen, K
O'Connell, RJ
Sandige, HL
Barnes, SL
Danaher, PJ
El Masry, NA
El Dib, NA
AF Petersen, Kyle
O'Connell, Robert J.
Sandige, Heidi L.
Barnes, Steven L.
Danaher, Patrick J.
El Masry, Nabil A.
El Dib, Nadia A.
TI A Pregnant Woman with Severe Diarrhea
SO CLINICAL INFECTIOUS DISEASES
LA English
DT Editorial Material
ID INTESTINAL CAPILLARIASIS
C1 [Petersen, Kyle] Naval Med Res Ctr, Dept Combat Casualty Care, Silver Spring, MD USA.
[O'Connell, Robert J.] Walter Reed Army Inst Res, Dept Retrovirol, Silver Spring, MD USA.
[Barnes, Steven L.] Uniformed Serv Univ Hlth Sci, Dept Prevent Med & Biometr, Bethesda, MD 20814 USA.
[Sandige, Heidi L.] Washington Univ, Dept Pediat, St Louis, MO 63130 USA.
[Danaher, Patrick J.] Eglin US Air Reg Hosp, Eglin AFB, FL USA.
[El Dib, Nadia A.] Cairo Univ, Fac Med, Dept Parasitol, Cairo, Egypt.
RP Petersen, K (reprint author), Combat Casualty Care Naval Med Res Ctr, 503 Robert Grant Ave, Silver Spring, MD 20889 USA.
EM kyle.petersen@med.navy.mil
NR 7
TC 0
Z9 0
U1 0
U2 0
PU UNIV CHICAGO PRESS
PI CHICAGO
PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA
SN 1058-4838
J9 CLIN INFECT DIS
JI Clin. Infect. Dis.
PD DEC 1
PY 2009
VL 49
IS 11
BP 1742
EP +
DI 10.1086/647949
PG 3
WC Immunology; Infectious Diseases; Microbiology
SC Immunology; Infectious Diseases; Microbiology
GA 515XC
UT WOS:000271505200020
PM 19891566
ER
PT J
AU Hartzell, JD
Wortmann, G
AF Hartzell, Joshua D.
Wortmann, Glenn
TI Nephrotoxicity Associated with Intravenous Colistin Reply
SO CLINICAL INFECTIOUS DISEASES
LA English
DT Letter
C1 [Hartzell, Joshua D.; Wortmann, Glenn] Walter Reed Army Med Ctr, Infect Dis Serv, Washington, DC 20307 USA.
[Hartzell, Joshua D.; Wortmann, Glenn] Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA.
RP Wortmann, G (reprint author), Walter Reed Army Med Ctr, Infect Dis Serv, Ward 63, Washington, DC 20307 USA.
EM Glenn.wortmann@amedd.army
NR 2
TC 0
Z9 0
U1 0
U2 0
PU UNIV CHICAGO PRESS
PI CHICAGO
PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA
SN 1058-4838
J9 CLIN INFECT DIS
JI Clin. Infect. Dis.
PD DEC 1
PY 2009
VL 49
IS 11
BP 1773
EP 1773
DI 10.1086/648117
PG 1
WC Immunology; Infectious Diseases; Microbiology
SC Immunology; Infectious Diseases; Microbiology
GA 515XC
UT WOS:000271505200030
ER
PT J
AU Bacon, FW
Iannarilli, FJ
Conant, JA
Deas, T
Dinning, M
AF Bacon, Fred W.
Iannarilli, Frank J., Jr.
Conant, John A.
Deas, Torrey
Dinning, Malcolm
TI Quantitative Camouflage Paint Selection for the CH-47F Helicopter
SO COLOR RESEARCH AND APPLICATION
LA English
DT Article
DE appearance; camouflage; perception; reflectance
ID MODEL
AB We have determined optimal minimum-conspicuity monocoat paint colors for the CH-47F Chinook helicopter, viewed photopically against forest, desert, and sky backgrounds. Our methodology combines use of a validated spectroradiometric model for rigorous 3D signature prediction with statistics of varying background fields and a CIE color difference metric. The study considered a large subset of the Federal Standard 595 (FS595) paint inventory. Each paint color was rigorously modeled with bidirectional reflectance distribution function scattering properties to match existing army paint and spectral reflectances to match spectrophotometer measurements of FS595 reference samples. We devised and validated a method to impute statistical variation in background radiances over environmental conditions consistent with the aircraft radiometric computations. Using a visual jury, we informally calibrated the CIE 1994 color difference formula (which gauges both luminance and chromaticity contrast) to gauge how each paint performed against each background, for varying range, view direction, and sun location. The statistical dispersions in performance were summarized for the CH-47F Program Manager, who selected the best overall paint for the CH-47F fleet. We found paints that were optimized to a specific background (forest, desert, etc.) yielded enhanced performance against those backgrounds, as would be expected, and that those paints were better than the paint used on CH-47s in the current US inventory. (C) 2009 Wiley Periodicals, Inc. Col Res Appl, 34, 406-416, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/col.20538
C1 [Bacon, Fred W.; Iannarilli, Frank J., Jr.; Conant, John A.] Aerodyne Res Inc, Billerica, MA 01821 USA.
[Deas, Torrey; Dinning, Malcolm] USA, Aviat Appl Technol Directorate, Ft Eustis, VA USA.
RP Iannarilli, FJ (reprint author), Aerodyne Res Inc, 45 Manning Rd, Billerica, MA 01821 USA.
EM franki@aerodyne.com
FU US Army Aviation Applied Technology Directorate (AATD) [SC CAS320-05]
FX Contract grant sponsor: US Army Aviation Applied Technology Directorate
(AATD); contract grant number: SC CAS320-05.
NR 11
TC 0
Z9 0
U1 1
U2 6
PU JOHN WILEY & SONS INC
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 0361-2317
J9 COLOR RES APPL
JI Color Res. Appl.
PD DEC
PY 2009
VL 34
IS 6
BP 406
EP 416
DI 10.1002/col.20538
PG 11
WC Engineering, Chemical
SC Engineering
GA 514NR
UT WOS:000271402100001
ER
PT J
AU Clarkson, WA
Restrepo, CS
Bauch, TD
Rubal, BJ
AF Clarkson, Wesley A.
Restrepo, Carlos Santiago
Bauch, Terry D.
Rubal, Bernard J.
TI Using Multidetector Computed Tomography in a Swine Model to Assess the
Effects of Sublingual Nitroglycerin and Intravenous Adenosine on
Epicardial Coronary Arteries
SO COMPARATIVE MEDICINE
LA English
DT Article
ID 64-MDCT ANGIOGRAPHY; DIAGNOSTIC-ACCURACY; VASODILATOR RESERVE; VASOMOTOR
RESPONSE; FLOW RESERVE; NITRIC-OXIDE; DISEASE; VASOREACTIVITY;
DILATATION; MECHANISMS
AB This study examines the effects of intravenous infusion of adenosine and sublingual nitroglycerin on coronary angiograms obtained by current-generation multidetector computed tomography. We assessed coronary vasodilation at baseline and after intravenous adenosine (140 mu g/kg/min) or sublingual nitroglycerin spray (800 mu g) in 7 female swine (weight, 40.9 +/- 1.4 kg) by using electrocardiogram-gated coronary angiography with a 64-detector scanner (rotation time, 400 ms; 120kV, 400 mA) and intravenous contrast (300 mg/mL iohexol, 4.5 mL/s, 2 mL/kg). Cross-sectional areas of segments in the left anterior descending, circumflex, and right coronary arteries were evaluated in oblique orthogonal views. Images were acquired at an average heart rate of 73 +/- 11 beats per minute. Changes in aortic pressure were not significant with nitroglycerin but decreased (approximately 10%) with adenosine. Of the 76 segments analyzed (baseline range, 2 to 39 mm(2)), 1 distal segment could not be assessed after adenosine. Segment cross-sectional area increased by 11.3% with nitroglycerin but decreased by 9.6% during adenosine infusion. The results of the present study are consistent with the practice of using sublingual nitroglycerin to enhance visualization of epicardial vessels and suggest that intravenous adenosine may hinder coronary artery visualization. This study is the first repeated-measures electrocardiogramgated CT evaluation to use the same imaging technology to assess changes in coronary cross-sectional area before and after treatment with a vasodilator. The nitroglycerin-associated changes in our swine model were modest in comparison with previously reported human studies.
C1 [Clarkson, Wesley A.; Rubal, Bernard J.] Brooke Army Med Ctr, Serv Cardiol, Ft Sam Houston, TX 78234 USA.
[Restrepo, Carlos Santiago; Bauch, Terry D.] Univ Texas Hlth Sci Ctr San Antonio, San Antonio, TX 78229 USA.
RP Rubal, BJ (reprint author), Brooke Army Med Ctr, Serv Cardiol, Ft Sam Houston, TX 78234 USA.
EM Bernie.Rubal@amedd.army.mil
NR 45
TC 1
Z9 1
U1 0
U2 0
PU AMER ASSOC LABORATORY ANIMAL SCIENCE
PI MEMPHIS
PA 9190 CRESTWYN HILLS DR, MEMPHIS, TN 38125 USA
SN 1532-0820
J9 COMPARATIVE MED
JI Comparative Med.
PD DEC
PY 2009
VL 59
IS 6
BP 573
EP 579
PG 7
WC Veterinary Sciences; Zoology
SC Veterinary Sciences; Zoology
GA 538FE
UT WOS:000273169000009
PM 20034433
ER
PT J
AU Burke, RL
Whitehouse, CA
Taylor, JK
Selby, EB
AF Burke, Robin L.
Whitehouse, Chris A.
Taylor, Justin K.
Selby, Edward B.
TI Epidemiology of Invasive Klebsiella pneumoniae with Hypermucoviscosity
Phenotype in a Research Colony of Nonhuman Primates
SO COMPARATIVE MEDICINE
LA English
DT Article
ID PYOGENIC LIVER-ABSCESS; FIELD GEL-ELECTROPHORESIS; NOSOCOMIAL PATHOGENS;
VIRULENCE FACTOR; NORTH-AMERICA; SEROTYPE K1; MAGA GENES; DAIRY-COWS;
COMMUNITY; TAIWAN
AB Invasive Klebsiella pneumoniae with hypermucoviscosity phenotype (HMV K. pneumoniae) is an emerging human pathogen that, over the past 20 y, has resulted in a distinct clinical syndrome characterized by pyogenic liver abscesses sometimes complicated by bacteremia, meningitis, and endophthalmitis. Infections occur predominantly in Taiwan and other Asian countries, but HMV K. pneumoniae is considered an emerging infectious disease in the United States and other Western countries. In 2005, fatal multisystemic disease was attributed to HMV K. pneumoniae in African green monkeys (AGM) at our institution. After identification of a cluster of subclinically infected macaques in March and April 2008, screening of all colony nonhuman primates by oropharyngeal and rectal culture revealed 19 subclinically infected rhesus and cynomolgus macaques. PCR testing for 2 genes associated with HMV K. pneumoniae, rmpA and magA, suggested genetic variability in the samples. Random amplified polymorphic DNA analysis on a subset of clinical isolates confirmed a high degree of genetic diversity between the samples. Environmental testing did not reveal evidence of aerosol or droplet transmission of the organism in housing areas. Further research is needed to characterize HMV K. pneumoniae, particularly with regard to genetic differences among bacterial strains and their relationship to human disease and to the apparent susceptibility of AGM to this organism.
C1 [Burke, Robin L.; Whitehouse, Chris A.; Taylor, Justin K.; Selby, Edward B.] USA, Med Res Inst Infect Dis, Ft Detrick, MD 21702 USA.
RP Burke, RL (reprint author), USA, Med Res Inst Infect Dis, Ft Detrick, MD 21702 USA.
EM robin.burke@us.army.mil
FU US Army Medical Research Institute of Infectious Diseases [150874]; US
Department of Energy; USAMRMC
FX The research described herein was sponsored by the US Army Medical
Research Institute of Infectious Diseases under Research Plan Number
150874. It was supported in part by an appointment to the Student
Research Participation Program at the US Army Medical Research Institute
for Infectious Diseases administered by the Oak Ridge Institute for
Science and Education through an interagency agreement between the US
Department of Energy and USAMRMC.
NR 41
TC 9
Z9 9
U1 0
U2 2
PU AMER ASSOC LABORATORY ANIMAL SCIENCE
PI MEMPHIS
PA 9190 CRESTWYN HILLS DR, MEMPHIS, TN 38125 USA
SN 1532-0820
J9 COMPARATIVE MED
JI Comparative Med.
PD DEC
PY 2009
VL 59
IS 6
BP 589
EP 597
PG 9
WC Veterinary Sciences; Zoology
SC Veterinary Sciences; Zoology
GA 538FE
UT WOS:000273169000011
PM 20034435
ER
PT J
AU Pankow, M
Waas, AM
Yen, CF
Ghiorse, S
AF Pankow, Mark
Waas, Anthony M.
Yen, Chian-Fong
Ghiorse, Seth
TI A new lamination theory for layered textile composites that account for
manufacturing induced effects
SO COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
LA English
DT Article; Proceedings Paper
CT 4th International Conference on Composites Testing and Model
Indenification
CY OCT 20-22, 2008
CL Dayton, OH
DE Fabrics/textiles; Polymer matrix composites; Laminate mechanics;
Mechanical testing
ID WOVEN FABRIC COMPOSITES; PREDICTION; BEHAVIOR; MODEL
AB This paper is concerned with the development of a new lamination theory for layered textile composites that can account for manufacturing induced effects. The theory can be used for the calculation of the effective linear elastic extensional and bending stiffnesses of laminated textile composite panels. A representative unit cell (RUC) of the textile architecture is first identified along with its constituents. Tow geometry is represented analytically taking account of tow undulation. Each tow is modeled as a transversely isotropic linear elastic solid and the contribution from each tow to the RUC elastic bending stiffness is obtained by volume averaging, taking account of the volume fraction of each constituent. The formulation is amenable to the incorporation of geometric changes to the textile architecture that occurs through manufacturing induced consolidation. Predictions of the elastic bending stiffness are compared against experimental data, showing a strong correlation between the analytical model and the experimental results. (C) 2009 Elsevier Ltd. All rights reserved.
C1 [Pankow, Mark; Waas, Anthony M.] Univ Michigan, Dept Aerosp Engn, Composite Struct Lab, Ann Arbor, MI 48109 USA.
[Yen, Chian-Fong; Ghiorse, Seth] USA, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
RP Waas, AM (reprint author), Univ Michigan, Dept Aerosp Engn, Composite Struct Lab, 1320 Beal St, Ann Arbor, MI 48109 USA.
EM dcw@umich.edu
NR 21
TC 15
Z9 15
U1 0
U2 8
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 1359-835X
J9 COMPOS PART A-APPL S
JI Compos. Pt. A-Appl. Sci. Manuf.
PD DEC
PY 2009
VL 40
IS 12
BP 1991
EP 2003
DI 10.1016/j.compositesa.2009.08.021
PG 13
WC Engineering, Manufacturing; Materials Science, Composites
SC Engineering; Materials Science
GA 533YB
UT WOS:000272861000020
ER
PT J
AU Hollister, SL
AF Hollister, Susannah L.
TI The Planet on the Screen: Scales of Belonging in A. R. Ammons's Sphere
SO CONTEMPORARY LITERATURE
LA English
DT Article
C1 US Mil Acad, West Point, NY 10996 USA.
RP Hollister, SL (reprint author), US Mil Acad, West Point, NY 10996 USA.
NR 35
TC 1
Z9 1
U1 0
U2 0
PU UNIV WISCONSIN PRESS
PI MADISON
PA JOURNAL DIVISION, 1930 MONROE ST, 3RD FL, MADISON, WI 53711 USA
SN 0010-7484
J9 CONTEMP LITERATURE
JI Contemp. Lit.
PD WIN
PY 2009
VL 50
IS 4
BP 662
EP 694
PG 33
WC Literature
SC Literature
GA 612ZF
UT WOS:000278944200002
ER
PT J
AU Bacomo, F
Chung, K
Lundy, J
AF Bacomo, Ferdinand
Chung, Kevin
Lundy, Jonathan
TI CONCOMITANT DROTRECOGIN ALFA USE AND RENAL REPLACEMENT THERAPY IN
SEVERELY ILL SEPTIC PATIENTS IN THE BURN ICU
SO CRITICAL CARE MEDICINE
LA English
DT Meeting Abstract
CT 39th Critical Care Congress of the Society-of-Critical-Care-Medicine
CY JAN 09-13, 2010
CL Miami, FL
SP Soc Critical Care Med, Pfizer Inc, Hospira Inc, Lippincott Williams & Wilkins
C1 [Bacomo, Ferdinand; Lundy, Jonathan] Brooke Army Med Ctr, Ft Sam Houston, TX 78234 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0090-3493
J9 CRIT CARE MED
JI Crit. Care Med.
PD DEC
PY 2009
VL 37
IS 12
SU S
MA 866
BP A424
EP A424
PG 1
WC Critical Care Medicine
SC General & Internal Medicine
GA 529IS
UT WOS:000272509900829
ER
PT J
AU Borgman, M
Blackbourne, L
Maegele, M
Spinella, P
AF Borgman, Matthew
Blackbourne, Lorne
Maegele, Marc
Spinella, Philip
TI PREDICTION OF MORTALITY FOR CHILDREN AT COMBAT SUPPORT HOSPITALS IN IRAQ
AND AFGHANISTAN
SO CRITICAL CARE MEDICINE
LA English
DT Meeting Abstract
CT 39th Critical Care Congress of the Society-of-Critical-Care-Medicine
CY JAN 09-13, 2010
CL Miami, FL
SP Soc Critical Care Med, Pfizer Inc, Hospira Inc, Lippincott Williams & Wilkins
C1 [Borgman, Matthew] Childrens Hosp Boston, Boston, MA USA.
[Blackbourne, Lorne] Brooke Army Med Ctr, San Antonio, TX USA.
[Maegele, Marc] Univ Cologne, Med Ctr, D-5000 Cologne 41, Germany.
[Spinella, Philip] Connecticut Childrens Med Ctr, Hartford, CT USA.
RI Borgman, Matthew/L-9477-2015
OI Borgman, Matthew/0000-0002-2008-7380
NR 0
TC 0
Z9 0
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0090-3493
J9 CRIT CARE MED
JI Crit. Care Med.
PD DEC
PY 2009
VL 37
IS 12
SU S
MA 664
BP A323
EP A323
PG 1
WC Critical Care Medicine
SC General & Internal Medicine
GA 529IS
UT WOS:000272509900629
ER
PT J
AU Borgman, M
Spinella, P
Holcomb, J
Blackbourne, L
Wade, C
Lefering, R
Bouillon, B
Maegele, M
AF Borgman, Matthew
Spinella, Philip
Holcomb, John
Blackbourne, Lorne
Wade, Charles
Lefering, Rolf
Bouillon, Bertil
Maegele, Marc
TI THE EFFECT OF FFP:RBC RATIO ON MORBIDITY AND MORTALITY IN TRAUMA
PATIENTS BASED ON MASSIVE TRANSFUSION PREDICTION SCORE
SO CRITICAL CARE MEDICINE
LA English
DT Meeting Abstract
CT 39th Critical Care Congress of the Society-of-Critical-Care-Medicine
CY JAN 09-13, 2010
CL Miami, FL
SP Soc Critical Care Med, Pfizer Inc, Hospira Inc, Lippincott Williams & Wilkins
C1 [Borgman, Matthew] Childrens Hosp Boston, Boston, MA USA.
[Spinella, Philip] Connecticut Childrens Med Ctr, Hartford, CT USA.
[Blackbourne, Lorne] Brooke Army Med Ctr, Ft Sam Houston, TX 78234 USA.
[Maegele, Marc] Univ Cologne, Med Ctr, D-5000 Cologne 41, Germany.
RI Borgman, Matthew/L-9477-2015
OI Borgman, Matthew/0000-0002-2008-7380
NR 0
TC 2
Z9 2
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0090-3493
J9 CRIT CARE MED
JI Crit. Care Med.
PD DEC
PY 2009
VL 37
IS 12
SU S
MA 542
BP A264
EP A264
PG 1
WC Critical Care Medicine
SC General & Internal Medicine
GA 529IS
UT WOS:000272509900508
ER
PT J
AU Chung, K
Grathwohl, K
Poropatich, R
Barrigan, C
Renz, E
Blackbourne, L
AF Chung, Kevin
Grathwohl, Kurt
Poropatich, Ronald
Barrigan, Cynthia
Renz, Evan
Blackbourne, Lorne
TI ROBOTIC TELE-PRESENCE IN A MILITARY ICU: A PROSPECTIVE OBSERVATIONAL
STUDY
SO CRITICAL CARE MEDICINE
LA English
DT Meeting Abstract
CT 39th Critical Care Congress of the Society-of-Critical-Care-Medicine
CY JAN 09-13, 2010
CL Miami, FL
SP Soc Critical Care Med, Pfizer Inc, Hospira Inc, Lippincott Williams & Wilkins
C1 [Chung, Kevin; Renz, Evan; Blackbourne, Lorne] USA, Inst Surg Res, Washington, DC USA.
[Grathwohl, Kurt] Brooke Army Med Ctr, Ft Sam Houston, TX 78234 USA.
[Poropatich, Ronald; Barrigan, Cynthia] USA, Med Res Mat Command, Washington, DC USA.
NR 0
TC 1
Z9 1
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0090-3493
J9 CRIT CARE MED
JI Crit. Care Med.
PD DEC
PY 2009
VL 37
IS 12
SU S
MA 900
BP A441
EP A441
PG 1
WC Critical Care Medicine
SC General & Internal Medicine
GA 529IS
UT WOS:000272509900863
ER
EF