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DHS: Organizational Structure and Resources for Providing Health Care to Immigration Detainees (open access)

DHS: Organizational Structure and Resources for Providing Health Care to Immigration Detainees

Correspondence issued by the Government Accountability Office with an abstract that begins "Recent events have drawn attention to the health care provided to detainees held by U.S. Immigration and Customs Enforcement (ICE), a component of the Department of Homeland Security (DHS). For fiscal year 2004 through fiscal year 2007, ICE reported that 69 detainees died while in ICE custody, and during 2008, national news organizations investigated and published reports of the circumstances surrounding several detainee deaths. Other reports have also outlined concerns about the health care provided to detainees. For example, in 2007, the DHS Office of the Inspector General (OIG) found problems with adherence to ICE's medical standards at two ICE facilities it reviewed where detainee deaths had occurred. Additionally, members of Congress, the media, and advocacy groups have raised questions about the health care provided to detainees in ICE custody. An explanatory statement accompanying the fiscal year 2009 DHS appropriations act directed ICE to fund an independent, comprehensive review of the medical care provided to persons detained by DHS and identified $2 million for that purpose. ICE was created in March 2003 as part of DHS. From fiscal year 2003 through fiscal year 2007, the average daily population …
Date: February 23, 2009
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Securing, Stabilizing, and Developing Pakistan's Border Area with Afghanistan: Key Issues for Congressional Oversight (open access)

Securing, Stabilizing, and Developing Pakistan's Border Area with Afghanistan: Key Issues for Congressional Oversight

A letter report issued by the Government Accountability Office with an abstract that begins "Since 2002, destroying the terrorist threat and closing the terrorist safe haven along Pakistan's border with Afghanistan have been key national security goals. The United States has provided Pakistan, an important ally in the war on terror, with more than $12.3 billion for a variety of activities, in part to address these goals. About half of this amount has been to reimburse Pakistan for military-related support, including combat operations in and around the Federally Administered Tribal Areas (FATA). Despite 6 years of U.S. and Pakistani government efforts, al Qaeda has regenerated its ability to attack the United States and continues to maintain a safe haven in Pakistan's FATA. As the United States considers how it will go forward with efforts to assist Pakistan in securing, stabilizing, and developing its FATA and Western Frontier bordering Afghanistan, it is vital that efforts to develop a comprehensive plan using all elements of national power be completed and that continued oversight and accountability over funds used for these efforts are in place."
Date: February 23, 2009
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Measurement of the Semileptonic Decays B->D tau nu and B->D* tau nu (open access)

Measurement of the Semileptonic Decays B->D tau nu and B->D* tau nu

The authors present measurements of the semileptonic decays B{sup -} {yields} D{sup 0} {tau}{sup -} {bar {nu}}{sub {tau}}, B{sup -} {yields} D*{sup 0} {tau}{sup -}{bar {nu}}{sub {tau}}, {bar B}{sup 0} {yields} D{sup +} {tau}{sup -} {bar {nu}}{sub {tau}}, and {bar B}{sup 0} {yields} D*{sup +} {tau}{sup -}{bar {nu}}{sub {tau}}, which are sensitive to non-Standard Model amplitudes in certain scenarios. The data sample consists of 232 x 10{sup 6} {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II e{sup +}e{sup -} collider. They select events with a D or D* meson and a light lepton ({ell} = e or {mu}) recoiling against a fully reconstructed B meson. They perform a fit to the joint distribution of lepton momentum and missing mass squared to distinguish signal B {yields} D{sup (*)}{tau}{sup -} {bar {nu}}{sub {tau}} ({tau}{sup -} {yields} {ell}{sup -} {bar {nu}}{sub {ell}}{nu}{sub {tau}}) events from the backgrounds, predominantly B {yields} D{sup (*)} {ell}{sup -}{bar {nu}}{sub {ell}}. They measure the branching-fraction ratios R(D) {triple_bond} {Beta}(B {yields} D{tau}{sup -} {bar {nu}}{sub {tau}})/{Beta}(B {yields} D{ell}{sup -} {bar {nu}}{sub {ell}}) and R(D*) {triple_bond} {Beta}(B {yields} D*{tau}{sup -} {bar {nu}}{sub {tau}})/{Beta}(B {yields} D* {ell}{sup -} {bar {nu}}{sub {ell}}) and, from a combined fit …
Date: February 23, 2009
Creator: Aubert, B.
Object Type: Article
System: The UNT Digital Library
Metastable Supersymmetry Breaking and Multitrace Deformations of SQCD (open access)

Metastable Supersymmetry Breaking and Multitrace Deformations of SQCD

Metastable vacua in supersymmetric QCD in the presence of single and multitrace deformations of the superpotential are explored, with the aim of obtaining an acceptable phenomenology. The metastable vacua appear at one loop, have a broken R-symmetry, and a magnetic gauge group that is completely Higgsed. With only a single trace deformation, the adjoint fermions from the meson superfield are approximately massless at one loop, even though they are massive at tree level and R-symmetry is broken. Consequently, if charged under the standard model, they are unacceptably light. A multitrace quadratic deformation generates fermion masses proportional to the deformation parameter. Phenomenologically viable models of direct gauge mediation can then be obtained, and some of their features are discussed.
Date: February 23, 2009
Creator: Essig, Rouven; Fortin, Jean-Francois; Sinha, Kuver; Torroba, Gonzalo & Strassler, Matthew J.
Object Type: Article
System: The UNT Digital Library
Simulating SiD Calorimetry: Software Calibration Procedures and Jet Energy Resolution (open access)

Simulating SiD Calorimetry: Software Calibration Procedures and Jet Energy Resolution

Simulated calorimeter performance in the SiD detector is examined. The software calibration procedures are described, as well as the perfect pattern recognition PFA reconstruction. Performance of the SiD calorimeters is summarized with jet energy resolutions from calorimetry only, perfect pattern recognition and the SiD PFA algorithm. Presented at LCWS08[1]. Our objective is to simulate the calorimeter performance of the SiD detector, with and without a Particle Flow Algorithm (PFA). Full Geant4 simulations using SLIC[2] and the SiD simplified detector geometry (SiD02) are used. In this geometry, the calorimeters are represented as layered cylinders. The EM calorimeter is Si/W, with 20 layers of 2.5mm W and 10 layers of 5mm W, segmented in 3.5 x 3.5mm{sup 2} cells. The HAD calorimeter is RPC/Fe, with 40 layers of 20mm Fe and a digital readout, segmented in 10 x 10mm{sup 2} cells. The barrel detectors are layered in radius, while the endcap detectors are layered in z(along the beam axis).
Date: February 23, 2009
Creator: Cassell, Ron
Object Type: Article
System: The UNT Digital Library
Search for the decay B^+ \to K_S^0 K_S^0 \pi ^+ (open access)

Search for the decay B^+ \to K_S^0 K_S^0 \pi ^+

The authors search for charmless decays of charged B mesons to the three-body final state K{sub S}{sup 0}K{sub S}{sup 0}{pi}{sup +}. Using a data sample of 423.7 fb{sup -1} collected at the {Upsilon}(4S) resonance with the BABAR detector, corresponding to (465.1 {+-} 5.1) x 10{sup 6} B{bar B} pairs, they find no significant signal and determine a 90% confidence level upper limit on the branching fraction of 5.1 x 10{sup -7}.
Date: February 23, 2009
Creator: Aubert, B.; Bona, M.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prencipe, E. et al.
Object Type: Article
System: The UNT Digital Library
Effects of Energy Chirp on Echo-Enabled Harmonic Generation Free-Electron Lasers (open access)

Effects of Energy Chirp on Echo-Enabled Harmonic Generation Free-Electron Lasers

We study effects of energy chirp on echo-enabled harmonic generation (EEHG). Analytical expressions are compared with numerical simulations for both harmonic and bunching factors. We also discuss the EEHG free-electron laser bandwidth increase due to an energy-modulated beam and its pulse length dependence on the electron energy chirp.
Date: February 23, 2009
Creator: Huang, Z.; Ratner, D.; Stupakov, G. & Xiang, D.
Object Type: Report
System: The UNT Digital Library
Precise Predictions for W + 3 Jet Production at Hadron Colliders (open access)

Precise Predictions for W + 3 Jet Production at Hadron Colliders

We report on the first next-to-leading order QCD computation of W + 3-jet production in hadronic collisions including all partonic subprocesses. We compare the results with CDF data from the Tevatron, and find excellent agreement. The renormalization and factorization scale dependence is reduced substantially compared to leading-order calculations. The required one-loop matrix elements are computed using on-shell methods, implemented in a numerical program, BlackHat. We use the SHERPA package to generate the real-emission contributions and to integrate the various contributions over phase space. We use a leading-color (large-N{sub c}) approximation for the virtual part, which we confirm in W + 1,2-jet production to be valid to within three percent. The present calculation demonstrates the utility of on-shell methods for computing next-to-leading-order corrections to processes important to physics analyses at the Large Hadron Collider.
Date: February 23, 2009
Creator: Berger, C.F.; /MIT, LNS; Bern, Z.; /UCLA; Dixon, L.J.; /SLAC et al.
Object Type: Article
System: The UNT Digital Library
Dalitz Plot Analysis of B+- --> pi+-pi+-pi-+ Decays (open access)

Dalitz Plot Analysis of B+- --> pi+-pi+-pi-+ Decays

The authors present a Dalitz-plot analysis of charmless B{sup {+-}} decays to the final state {pi}{sup {+-}}{pi}{sup {+-}}{pi}{sup {-+}} using a sample of (465 {+-} 5) x 10{sup 6} B{bar B} pairs collected by the BABAR experiment at {radical}s = 10.58 GeV. They measure the branching fractions {Beta}(B{sup {+-}} {yields} {pi}{sup {+-}}{pi}{sup {+-}}{pi}{sup {-+}}) = (15.2 {+-} 0.6 {+-} 1.2 {+-} 0.4) x 10{sup -6}, {Beta}(B{sup {+-}} {yields} {rho}{sup 0}(770){pi}{sup {+-}}) = (8.1 {+-} 0.7 {+-} 1.2{sub -1.1}{sup +0.4}) x 10{sup -6}, {Beta}(B{sup {+-}} {yields} f{sub 2}(1270){pi}{sup {+-}}) = (1.57 {+-} 0.42 {+-} 0.16{sub -0.19}{sup +0.53}) x 10{sup -6}, and {Beta}(B{sup {+-}} {yields} {pi}{sup {+-}}{pi}{sup {+-}}{pi}{sup {-+}} nonresonant) = (5.3 {+-} 0.7 {+-} 0.6{sub -0.5}{sup +1.1}) x 10{sup -6}, where the uncertainties are statistical, systematic, and model-dependent, respectively. Measurements of branching fractions for the modes B{sup {+-}} {yields} {rho}{sup 0}(1450){pi}{sup {+-}} and B{sup {+-}} {yields} f{sub 0}(1370){pi}{sup {+-}} are also presented. They observe no significant direct CP asymmetries for the above modes, and there is no evidence for the decays B{sup {+-}} {yields} f{sub 0}(980){pi}{sup {+-}}, B{sup {+-}} {yields} {chi}{sub c0}{pi}{sup {+-}}, or B{sup {+-}} {yields} {chi}{sub c2}{pi}{sup {+-}}.
Date: February 23, 2009
Creator: Collaboration, The BABAR & Aubert, B.
Object Type: Article
System: The UNT Digital Library
AdS/CFT and Light-Front Holography: A Theory of Strong Interactions (open access)

AdS/CFT and Light-Front Holography: A Theory of Strong Interactions

Recent developments in the theory of strong interactions are discussed in the framework of the AdS/CFT duality between string theories of gravity in a higher dimension Anti-de Sitter space and conformal quantum field theories in physical space-time. This novel theoretical approach, combined with 'light-front holography', leads to new insights into the quark and gluon structure of hadrons and a viable first approximation to quantum chromodynamics, the fundamental theory of the strong and nuclear interactions.
Date: February 23, 2009
Creator: Brodsky, Stanley J. & Teramond, Guy F.de
Object Type: Article
System: The UNT Digital Library

[Dave Brubeck sits at piano, 1]

Photograph of Dave Brubeck sitting at a piano during a residency at the University of North Texas in 2009. Brubeck is looking up from the piano and smiling.
Date: [2009-02-23..2009-02-27]
Creator: University of North Texas. College of Music.
Object Type: Photograph
System: The UNT Digital Library

[Dave Brubeck plays the piano]

Photograph of Dave Brubeck playing the piano during a residency at the University of North Texas in 2009. Brubeck is looking down at the piano as his hands hover over the keys.
Date: [2009-02-23..2009-02-27]
Creator: University of North Texas. College of Music.
Object Type: Photograph
System: The UNT Digital Library

[Portrait of the Dave Brubeck Quartet, 1]

Photograph of the Dave Brubeck Quartet taken during a residency at the University of North Texas in 2009. Members Bobby Militello (saxophone), Dave Brubeck (at piano), Randy Jones (behind Brubeck), and Michael Moore (bass) are looking at the camera and smiling.
Date: [2009-02-23..2009-02-27]
Creator: University of North Texas. College of Music.
Object Type: Photograph
System: The UNT Digital Library
81st Texas Legislature, Senate Concurrent Resolutions 20 (open access)

81st Texas Legislature, Senate Concurrent Resolutions 20

Concurrent resolution introduced by the Texas Senate and House of Representatives relating to Granting the legislature permission to adjourn for more than three days during the period beginning on Wednesday, February 18, 2009, and ending on Monday, February 23, 2009.
Date: February 23, 2009
Creator: Texas. Legislature. Senate.
Object Type: Legislative Document
System: The Portal to Texas History
Texas Stonewall Democratic Caucus 2009 Conference Registration List (open access)

Texas Stonewall Democratic Caucus 2009 Conference Registration List

Registration list for the 2009 conference of the Texas Stonewall Democratic Caucus.
Date: February 23, 2009
Creator: unknown
Object Type: Text
System: The UNT Digital Library
Deposit Summary (open access)

Deposit Summary

Deposit summary to American National Bank of Texas of $2,788.30 made on February 23, 2009.
Date: February 23, 2009
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Collection of Solid Debris on NIF for Radiochemical Diagnostics and Measurements (open access)

Collection of Solid Debris on NIF for Radiochemical Diagnostics and Measurements

A system for collecting solid, post-explosion debris samples from the NIF chamber and their subsequent radiochemical analysis is currently under development. If the debris that condenses out of the plasma can be collected and analyzed, the number and type of nuclear reactions that occurred in the capsule material can be determined. this has applications both for radiochemical diagnostics of NIF capsule performance as well as radiochemical measurements relevant to basic science and stockpile stewardship. Several design prototypes have been studied and a prioritized list of radiochemical measurements that could be performed on NIF is under development based on interactions with capsule design, fabrication, and WCI design divisions.
Date: February 23, 2009
Creator: Shaughnessy, D A
Object Type: Report
System: The UNT Digital Library
[Email from Linda Allen to members] (open access)

[Email from Linda Allen to members]

Email correspondence between Linda Allen, Al Daniels, Daniel Graney, Mike McCue, Ken Denson, and Erin Moore on February 22, 2009 to February 23, 2009, discussing adding information to SDD website.
Date: February 23, 2009
Creator: unknown
Object Type: Letter
System: The UNT Digital Library
Comparison of fast 3D simulation and actinic inspection for EUV masks with buries defects (open access)

Comparison of fast 3D simulation and actinic inspection for EUV masks with buries defects

Aerial images for isolated defects and the interactions of defects with features are compared between the Actinic Inspection Tool (AIT) at Lawrence Berkeley National Laboratory (LBNL) and the fast EUV simulation program RADICAL. Comparisons between AIT images from August 2007 and RADICAL simulations are used to extract aberrations. At this time astigmatism was the dominant aberration with a value of 0.55 waves RMS. Significant improvements in the imaging performance of the AIT were made between August 2007 and December 2008. A good match will be shown between the most recent AIT images and RADICAL simulations without aberrations. These comparisons will demonstrate that a large defect, in this case 7nm tall on the surface, is still printable even if it is centered under the absorber line. These comparisons also suggest that the minimum defect size is between 1.5nm and 0.8nm surface height because a 1.5nm defect was printable but a 0.8nm was not. Finally, the image of a buried defect near an absorber line through focus will demonstrate an inversion in the effect of the defect from a protrusion of the dark line into the space to a protrusion of the space into the line.
Date: February 23, 2009
Creator: Clifford, C. H.; Wiraatmadja, S.; Chan, T. T.; Neureuther, A. R.; Goldberg, K. A.; Mochi, I. et al.
Object Type: Article
System: The UNT Digital Library
The consequences of failure should be considered in siting geologic carbon sequestration projects (open access)

The consequences of failure should be considered in siting geologic carbon sequestration projects

Geologic carbon sequestration is the injection of anthropogenic CO{sub 2} into deep geologic formations where the CO{sub 2} is intended to remain indefinitely. If successfully implemented, geologic carbon sequestration will have little or no impact on terrestrial ecosystems aside from the mitigation of climate change. However, failure of a geologic carbon sequestration site, such as large-scale leakage of CO{sub 2} into a potable groundwater aquifer, could cause impacts that would require costly remediation measures. Governments are attempting to develop regulations for permitting geologic carbon sequestration sites to ensure their safety and effectiveness. At present, these regulations focus largely on decreasing the probability of failure. In this paper we propose that regulations for the siting of early geologic carbon sequestration projects should emphasize limiting the consequences of failure because consequences are easier to quantify than failure probability.
Date: February 23, 2009
Creator: Price, P. N. & Oldenburg, C. M.
Object Type: Article
System: The UNT Digital Library
Duality, Entropy and ADM Mass in Supergravity (open access)

Duality, Entropy and ADM Mass in Supergravity

We consider the Bekenstein-Hawking entropy-area formula in four dimensional extended ungauged supergravity and its electric-magnetic duality property. Symmetries of both"large" and"small" extremal black holes are considered, as well as the ADM mass formula for N=4 and N=8 supergravity, preserving different fraction of supersymmetry. The interplay between BPS conditions and duality properties is an important aspect of this investigation.
Date: February 23, 2009
Creator: Cerchiai, Bianca L.; Ferrara, Sergio; Marrani, Alessio & Zumino, Bruno
Object Type: Article
System: The UNT Digital Library
MARFE Stability and Movement in an ELMy H-mode NSTX Discharge (open access)

MARFE Stability and Movement in an ELMy H-mode NSTX Discharge

The results of a comparison of Multifaceted Asymmetric Radiation From the Edge (MARFE) theory with experiment in the National Spherical Torus Experiment (NSTX) are presented. A variety of MARFE behavior was observed using a fast-framing camera. A basic MARFE theory was applied to NSTX Multi-Pulse Thomson scattering (MPTS) and charge-exchange recombination spectroscopy (CHERS) data. MARFE theory showed some limited agreement with experiment, but uncertainty in the separatrix location constrained the analysis. A method based on shifting iso-Te flux surfaces was used to estimate the separatrix location. The movements of MARFEs in NSTX are interpreted to result from diamagnetic heat flux driven drifts relative to the background plasma velocity and imply slowing edge poloidal rotation and/or changing edge profiles before a large ELM.
Date: February 23, 2009
Creator: F. Kelly, R. Maingi, R. Maqueda, J. Menard, S. Paul
Object Type: Report
System: The UNT Digital Library
Deliquescence and efflorescence of small particles: Unifying perspectives from nucleation theory (open access)

Deliquescence and efflorescence of small particles: Unifying perspectives from nucleation theory

We examine size dependent deliquescence/efflorescence phase transformation for particles down to several nanometers in size. A thin layer criterion (TLC) is introduced to define a deliquescence relative humidity (DRH) for small particles. The usual bulk deliquescence conditions are recovered in the limit of large dry particle size. Nano-size particles are shown to deliquesce to metastable states via a nucleation process at relative humidity just below the DRH. The nucleation barrier is located at a critical solution layer thickness and vanishes at the DRH defined by the TLC. Methods from nucleation theory form the basis for the analysis and yield new insights into the theory, facilitate the interpretation of measurements, and point to unification of deliquescence and efflorescence processes for particles in the nano regime. Methods include thermodynamic area constructions, Legendre transforms relating the binary free-energy surfaces for deliquescence and efflorescence processes, and application of nucleation theorems.
Date: February 23, 2009
Creator: McGraw,R. & Lewis, E.
Object Type: Article
System: The UNT Digital Library
Inspection 13.2 nm table-top full-field microscope (open access)

Inspection 13.2 nm table-top full-field microscope

We present results on a table-top microscope that uses an EUV stepper geometry to capture full-field images with a halfpitch spatial resolution of 55 nm. This microscope uses a 13.2 nm wavelength table-top laser for illumination and acquires images of reflective masks with exposures of 20 seconds. These experiments open the path to the realization of high resolution table-top imaging systems for actinic defect characterization.
Date: February 23, 2009
Creator: Brizuela, F.; Wang, Y.; Brewer, C. A.; Pedaci, F.; Chao, W.; Anderson, E. H. et al.
Object Type: Article
System: The UNT Digital Library