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Health Professional Shortage Areas: Problems Remain with Primary Care Shortage Area Designation System

Description: A letter report issued by the Government Accountability Office with an abstract that begins "To identify areas facing shortages of health care providers, the Department of Health and Human Services (HHS) relies on its health professional shortage area (HPSA) designation system. HHS designates geographic, population-group, and facility HPSAs. HHS also gives each HPSA a score to rank its need for providers relative to other HPSAs. The Health Care Safety Net Amendments of 2002 required GAO to repo… more
Date: October 24, 2006
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Quantifying the Diffusion of a Fluid through Membranes by RemoteDetection MRI

Description: We present a method to measure self-diffusion acrossmembranes without the need for concentration or pressure gradients.Hyperpolarized xenon in combination with remote detection of NMR allowsthe measurement of membrane permeation, even in the gas phase. Theresulting images allow quantification of the amount of fluid diffusedthrough the membrane, and represent an alternative, potentially moreprecise way of measuring a membrane diffusion coefficient. The use ofremote detection of NMR allows for no… more
Date: October 24, 2006
Creator: Telkki, Ville-Veikko; Hilty, Christian; Garcia, Sandra; Harel,Elad & Pines, Alexander
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

[Letter template from the TDNA President to Nelson Clyde IV, October 24, 2006]

Description: Letter from the TDNA President to Nelson Clyde IV on October 24, 2006 congratulating him on being elected TDNA's treasurer beginning January 1, 2007 and on becoming the associations president in 2009. The TDNA will issue a press release on Clyde's election at a later date and when they announce the names of the new members elected to the board of directors.
Date: October 24, 2006
Item Type: Refine your search to only Letter
Partner: UNT Libraries Special Collections
open access

Conceptual Design of an Antiproton Generation and Storage Facility

Description: The Antiproton Generation and Storage Facility (AGSF) creates copious quantities of antiprotons, for bottling and transportation to remote cancer therapy centers. The #12;first step in the generation and storage process is to accelerate an intense proton beam down the Main Linac for injection into the Main Ring, which is a Rapid Cycling Synchrotron that accelerates the protons to high energy. The beam is then extracted from the ring into a transfer line and into a Proton Target. Immediately dow… more
Date: October 24, 2006
Creator: Peggs, Stephen
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Study of Charm Baryons with the BaBar Experiment

Description: The authors report on several studies of charm baryon production and decays by the BABAR collaboration. They confirm previous observations of the {Xi}'{sub c}{sup 0/+}, {Xi}{sub c}(2980){sup +} and {Xi}{sub c}(3077){sup +} baryons, measure branching ratios for Cabibbo-suppressed {Lambda}{sub c}{sup +} decays and use baryon decays to study the properties of the light-quark baryons, {Omega}{sup -} and {Xi}(1690){sup 0}.
Date: October 24, 2006
Creator: Petersen, Brian Aa.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Stringy Instantons and Quiver Gauge Theories

Description: We explore contributions to the 4D effective superpotential which arise from Euclidean D3 branes (''instantons'') that intersect space-filling D-branes. These effects can perturb the effective field theory on the space-filling branes by nontrivial operators composed of charged matter fields, changing the vacuum structure in a qualitative way in some examples. Our considerations are exemplified throughout by a careful study of a fractional brane configuration on a del Pezzo surface.
Date: October 24, 2006
Creator: Florea, Bogdan; Kachru, Shamit; McGreevy, John & Saulina, Natalia
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Study of Collective Beam Instabilities using a Correleation-moment Analysis

Description: A general formalism for treating simultaneously the transverse coupled bunch and transverse coupled mode instabilities is presented. In this approach, the equations of motion of a coupled multi-bunch beam are expanded to yield a system of equations involving correlation-moments of the transverse and longitudinal motions. After a proper truncation, the system of equations is closed and can be solved. This approach allows us to formulate within one framework several known instability mechanisms i… more
Date: October 24, 2006
Creator: Heifets, S. A. & Chao, A. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Most of rare missense alleles in humans are deleterious:implications for evolution of complex disease and associationstudies

Description: The accumulation of mildly deleterious missense mutations inindividual human genomes has been proposed to be a genetic basis forcomplex diseases. The plausibility of this hypothesis depends onquantitative estimates of the prevalence of mildly deleterious de novomutations and polymorphic variants in humans and on the intensity ofselective pressure against them. We combined analysis of mutationscausing human Mendelian diseases, human-chimpanzee divergence andsystematic data on human SNPs and foun… more
Date: October 24, 2006
Creator: Kryukov, Gregory V.; Pennacchio, Len A. & Sunyaev, Shamil R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The First Estimate of BR(\bar B to X_s\gamma) at O(\alpha_s^2)

Description: Combining our results for various {Omicron}({alpha}{sub s}{sup 2}) corrections to the weak radiative B-meson decay, we are able to present the first estimate of the branching ratio at the next-to-next-to-leading order in QCD. We find {Beta}({bar B} {yields} X{sub s}{gamma}) = (3.15 {+-} 0.23) x 10{sup -4} for E{sub {gamma}} > 1.6 GeV in the {bar B}-meson rest frame. The four types of uncertainties: non-perturbative (5%), parametric (3%), higher-order (3%) and m{sub c}-interpolation ambiguity… more
Date: October 24, 2006
Creator: Misiak, M.; Asatrian, H. M.; Bieri, K.; Czakon, M.; Czarnecki, A.; Ewerth, T. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Coulomb Excitation of the 242mAm Isomer

Description: The {sup 242m}Am isomer, a well-known candidate for photo-depopulation research, has been studied in this first ever Coulomb excitation of a nearly pure ({approx} 98%) isomer target. Thirty new states, including a new rotational band built on a K{sup {pi}} = 6{sup -} state have been identified. Strong K-mixing results in nearly equal populations of the K{sup {pi}} = 5{sup -} and 6{sup -} states. Newly identified states have been assigned to the K{sup {pi}} = 3{sup -} rotational band, the lowest… more
Date: October 24, 2006
Creator: Hayes, A. B.; Cline, D.; Moody, K. J.; Wu, C. Y.; Becker, J. A.; Carpenter, M. P. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Developing Livestock Facility Type Information from USDA Agricultural Census Data for Use in Epidemiological and Economic Models

Description: The epidemiological and economic modeling of livestock diseases requires knowing the size, location, and operational type of each livestock facility within the US. At the present time, the only national database of livestock facilities that is available to the general public is the USDA's 2002 Agricultural Census data, published by the National Agricultural Statistics Service, herein referred to as the 'NASS data.' The NASS data provides facility data at the county level for various livestock t… more
Date: October 24, 2006
Creator: Melius, C; Robertson, A & Hullinger, P
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ultrafast Time-Resolved Electron Diffraction with Megavolt Electron Beams

Description: An rf photocathode electron gun is used as an electron source for ultrafast time-resolved pump-probe electron diffraction. We observed single-shot diffraction patterns from a 160 nm Al foil using the 5.4 MeV electron beam from the Gun Test Facility at the Stanford Linear Accelerator. Excellent agreement with simulations suggests that single-shot diffraction experiments with a time resolution approaching 100 fs are possible.
Date: October 24, 2006
Creator: Hastings, J. B.; Rudakov, F. M.; Dowell, D. H.; Schmerge, J. F.; Cardoza, J. D.; Castro, J. M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Single Transverse-Spin Asymmetries at Large-x

Description: The large-x behavior of the transverse-momentum dependent quark distributions is analyzed in the factorization-inspired perturbative QCD framework, particularly for the naive time-reversal-odd quark Sivers function which is responsible for the single transverse-spin asymmetries in various semi-inclusive hard processes. By examining the dominant hard gluon exchange Feynman diagrams, and using the resulting power counting rule, we find that the Sivers function has power behavior (1-x){sup 4} at x… more
Date: October 24, 2006
Creator: Brodsky, Stanley J. & Yuan, Feng
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Accelerator Physics Code Web Repository

Description: In the framework of the CARE HHH European Network, we have developed a web-based dynamic accelerator-physics code repository. We describe the design, structure and contents of this repository, illustrate its usage, and discuss our future plans, with emphasis on code benchmarking.
Date: October 24, 2006
Creator: Zimmermann, F.; Basset, R.; Bellodi, G.; Benedetto, E.; Dorda, U.; Giovannozzi, M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Gauge/gravity Duality and MetastableDynamical Supersymmetry Breaking

Description: We engineer a class of quiver gauge theories with several interesting features by studying D-branes at a simple Calabi-Yau singularity. At weak 't Hooft coupling we argue using field theory techniques that these theories admit both supersymmetric vacua and meta-stable non-supersymmetric vacua, though the arguments indicating the existence of the supersymmetry breaking states are not decisive. At strong 't Hooft coupling we find simple candidate gravity dual descriptions for both sets of vacua.
Date: October 24, 2006
Creator: Argurio, Riccardo; Bertolini, Matteo; Franco, Sebastian & Kachru, Shamit
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Flux Compactification

Description: We review recent work in which compactifications of string and M theory are constructed in which all scalar fields (moduli) are massive, and supersymmetry is broken with a small positive cosmological constant, features needed to reproduce real world physics. We explain how this work implies that there is a ''landscape'' of string/M theory vacua, perhaps containing many candidates for describing real world physics, and present the arguments for and against this idea. We discuss statistical surve… more
Date: October 24, 2006
Creator: Douglas, Michael R. & Kachru, Shamit
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Frequency Analysis of Aircraft hazards for License Application

Description: The preclosure safety analysis for the monitored geologic repository at Yucca Mountain must consider the hazard that aircraft may pose to surface structures. Relevant surface structures are located beneath the restricted airspace of the Nevada Test Site (NTS) on the eastern slope of Yucca Mountain, near the North Portal of the Exploratory Studies Facility Tunnel (Figure 1). The North Portal is located several miles from the Nevada Test and Training Range (NTTR), which is used extensively by the… more
Date: October 24, 2006
Creator: Ashley, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

[Audience around tables at MC event, 1]

Description: A photograph of people sitting around tables during a UNT Multicultural Center event about minorities in higher education. They are gathered in a conference room on the UNT campus.
Date: October 24, 2006
Creator: University of North Texas. Multicultural Center.
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections

[Panelists at Multicultural Center event]

Description: A photograph of panelists seated at a long table during a UNT Multicultural Center event about minorities in higher education. They have triangle folded signs with their names in front of them. The name plates read Raul Hinojosa, Valerie Carrillo, Renaldo de los Santos, Christina Cardoza, Lisa Goodwin, Peggy Bell Hendrickson, Randall Nunn, and Jorge Ledesma.
Date: October 24, 2006
Creator: University of North Texas. Multicultural Center.
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections
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