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open access

Medicare Program Integrity: CMS Continues Efforts to Strengthen the Screening of Providers and Suppliers

Description: A letter report issued by the Government Accountability Office with an abstract that begins "Medicare claims are screened against enrollment information, using automated enrollment-related prepayment edits, in an effort to prevent improper payments to ineligible providers and suppliers—such as those that are no longer active in the Medicare program or are not properly licensed to provide the services for which they have submitted claims. Officials with the contractors we interviewed described t… more
Date: April 10, 2012
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
open access

Measurements of the Electron Cloud Density in the PEP-II Low Energy Ring

Description: Clouds of low energy electrons in the vacuum beam pipes of accelerators of positively charged particle beams present a serious limitation for operation of these machines at high currents. Because of the size of these accelerators, it is difficult to probe the low energy electron clouds over substantial lengths of the beam pipe. We have developed a novel technique to directly measure the electron cloud density via the phase shift induced in a TE wave that is independently excited and transmitted… more
Date: April 10, 2012
Creator: Byrd, J.; De Santis, S.; Sonnad, K.; Caspers, F.; Kroyer, T.; Krasnykh, A. et al.
Partner: UNT Libraries Government Documents Department
open access

Search for the Z_1(4050)^+ and Z_2(4250)^+ States in bar B^0 to chi_{c1} K^- pi^+ and B^+ to chi_{c1} K^0_S pi^+

Description: We search for the Z{sub 1}(4050){sup +} and Z{sub 2}(4250){sup +} states, reported by the Belle Collaboration, decaying to {chi}{sub c1}{pi}{sup +} in the decays {bar B}{sup 0} {yields} {chi}{sub c1}K{sup -}{pi}{sup +} and B{sup +} {yields} {chi}{sub c1}K{sub S}{sup 0}{pi}{sup +} where {chi}{sub c1} {yields} J/{psi}{gamma}. The data were collected with the BABAR detector at the SLAC PEP-II asymmetric-energy e{sup +}e{sup -} collider operating at center-of-mass energy 10.58 GeV, and correspond t… more
Date: April 10, 2012
Creator: Lees, J. P.; Poireau, V.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M. et al.
Partner: UNT Libraries Government Documents Department
open access

Multiplexed gas spectroscopy using tunable VCSELs

Description: Detection and identification of gas species using tunable laser diode laser absorption spectroscopy has been performed using vertical cavity surface emitting lasers (VCSEL). Two detection methods are compared: direct absorbance and wavelength modulation spectroscopy (WMS). In the first, the output of a DC-based laser is directly monitored to detect for any quench at the targeted specie wavelength. In the latter, the emission wavelength of the laser is modulated by applying a sinusoidal componen… more
Date: April 10, 2012
Creator: Bond, T; Bond, S; McCarrick, J; Zumstein, J; Chang, A; Moran, B et al.
Partner: UNT Libraries Government Documents Department
open access

Lepton Universality Test in Upsilon(1S) Decays at BaBar

Description: Using a sample of 122 million {Upsilon}(3S) decays collected with the BABAR detector at the PEP-II asymmetric energy collider at the SLAC National Accelerator Laboratory, we measure the ratio R{sub {tau}{mu}} = BR({Upsilon}(1S) {yields} {tau}{sup +}{tau}{sup -})/BR({Upsilon}(1S) {yields} {mu}{sup +}{mu}{sup -}); the measurement is intended as a test of lepton universality and as a possible search for a light pseudoscalar Higgs boson in Next to Minimal Supersymmetric Standard Model (NMSSM) scena… more
Date: April 10, 2012
Creator: Guido, Elisa & /Genoa U. /INFN, Genoa
Partner: UNT Libraries Government Documents Department
open access

Dalitz Plot Analyses of B- to D+ Pi- Pi-, B+ to Pi+ Pi- Pi+ and D(S)+ to Pi+ Pi- Pi+ at BaBar

Description: We report on the Dalitz plot analyses of B{sup -} {yields} D{sup +}{pi}{sup -}{pi}{sup -}, B{sup +} {yields} {pi}{sup +}{pi}{sup -}{pi}{sup +} and D{sub s}{sup +} {yields} {pi}{sup +}{pi}{sup -}{sup +}. The Dalitz plot method and the most recent BABAR results are discussed.
Date: April 10, 2012
Creator: Dong, Liaoyuan & U., /Iowa State
Partner: UNT Libraries Government Documents Department
open access

Measuring Sparticles with the Matrix Element

Description: We apply the Matrix Element Method (MEM) to mass determination of squark pair production with direct decay to quarks and LSP at the LHC, showing that simultaneous mass determination of squarks and LSP is possible. We furthermore propose methods for inclusion of QCD radiation effects in the MEM. The goal of the LHC at CERN, scheduled to start this year, is to discover new physics through deviations from the Standard Model (SM) predictions. After discovery of deviations from the SM, the next step… more
Date: April 10, 2012
Creator: Alwall, Johan; /SLAC /Taiwan, Natl. Taiwan U.; Freitas, Ayres; U., /Pittsburgh; Mattelaer, Olivier & /INFN, Rome3 /Rome III U. /Louvain U.
Partner: UNT Libraries Government Documents Department
open access

Compiled MPI: Cost-Effective Exascale Applications Development

Description: The complexity of petascale and exascale machines makes it increasingly difficult to develop applications that can take advantage of them. Future systems are expected to feature billion-way parallelism, complex heterogeneous compute nodes and poor availability of memory (Peter Kogge, 2008). This new challenge for application development is motivating a significant amount of research and development on new programming models and runtime systems designed to simplify large-scale application develo… more
Date: April 10, 2012
Creator: Bronevetsky, G.; Quinlan, D.; Lumsdaine, A. & Hoefler, T.
Partner: UNT Libraries Government Documents Department
open access

The SM and NLO Multileg Working Group: Summary Report

Description: After years of waiting, and after six Les Houches workshops, the era of LHC running is finally upon us, albeit at a lower initial center-of-mass energy than originally planned. Thus, there has been a great sense of anticipation from both the experimental and theoretical communities. The last two years, in particular, have seen great productivity in the area of multi-parton calculations at leading order (LO), next-to-leading order (NLO) and next-to-next-to-leading order (NNLO), and this producti… more
Date: April 10, 2012
Creator: Andersen, J. R.; Archibald, J.; Badger, S.; Ball, R. D.; Bevilacqua, G.; Bierenbaum, I. et al.
Partner: UNT Libraries Government Documents Department
open access

Data Security Breach Notification Laws

Description: This report provides an overview of state security breach notification laws applicable to entities that collect, maintain, own, possess, or license personal information. It further discusses about Gramm-Leach-Bliley Act (GLBA).
Date: April 10, 2012
Creator: Stevens, Gina
Partner: UNT Libraries Government Documents Department
open access

Yemen: Background and U.S. Relations

Description: This report provides an overview and analysis of U.S.-Yemeni relations amidst evolving political change in Yemeni leadership, ongoing U.S. counterterrorism operations against Al Qaeda in the Arabian Peninsula (AQAP) operatives at large in Yemen's hinterlands, and international efforts to bolster the country's stability despite an array of daunting socio-economic problems. Congress and U.S. policymakers may be concerned with prospects for stabilizing Yemen and establishing strong bilateral relat… more
Date: April 10, 2012
Creator: Sharp, Jeremy M.
Partner: UNT Libraries Government Documents Department
open access

Hydraulic Fracturing and Safe Drinking Water Act Issues

Description: This report reviews past and proposed treatment of hydraulic fracturing under the Safe Water Drinking Ace, the principal federal statute for regulating the underground injection of fluids to protect groundwater sources of drinking water. It reviews current provisions for regulating underground injection activities, and discusses some possible implications of, and issues associated with, enactment of legislation authorizing the Environmental Protection Agency to regulate hydraulic fracturing und… more
Date: April 10, 2012
Creator: Tiemann, Mary & Vann, Adam
Partner: UNT Libraries Government Documents Department
open access

Pakistan: U.S. Foreign Assistance

Description: The 112th Congress has been focused measures to reduce the federal budget deficit. This backdrop may influence congressional debate over the third-ranking U.S. aid recipient, Pakistan-a country vital to U.S. national security interests but that some say lacks accountability and even credibility.
Date: April 10, 2012
Creator: Epstein, Susan B. & Kronstadt, K. Alan
Partner: UNT Libraries Government Documents Department
open access

Immigration Provisions of the Violence Against Women Act (VAWA)

Description: This report describes how the Violence Against Women Act (VAWA) provisions work in practice. It discusses improvements suggested by immigration attorneys and law enforcement observers to increase the utilization of VAWA provisions by abused foreign nationals as well as ways to reduce immigration fraud. The report closes with possible immigration-related issues that Congress may choose to consider should it reauthorize VAWA.
Date: April 10, 2012
Creator: Kandel, William A.
Partner: UNT Libraries Government Documents Department
open access

Stauts of the Laser Inertial Fusion Energy (LIFE) Hohlraum Point Design

Description: Progress on the hohlraum point design for the LIFE engine is described. New features in the original design [Amendt et al., Fus. Sci. Technol. 60, 49 (2011)] are incorporated that address the imperatives of low target cost, high manufacturing throughput, efficient and prompt material recycling, an ability for near-term testing of key target design uncertainties on the National Ignition Facility, and robustness to target chamber environment and injection insults. To this end, the novel use of Pb… more
Date: April 10, 2012
Creator: Amendt, P.; Dunne, M.; Ho, D.; Lasinski, B.; Meeker, D. & Ross, J. S.
Partner: UNT Libraries Government Documents Department
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