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Audit of Special Counsel Expenditures for the 6 Months Ended March 31, 2008

Description: Correspondence issued by the Government Accountability Office with an abstract that begins "This report presents the results of our audit of the expenditures of the Office of Special Counsel-Patrick J. Fitzgerald (OSC-Fitzgerald) for the 6 months ended March 31, 2008. The expenditures we audited were those made by the Department of Justice (DOJ) between October 1, 2007, and March 31, 2008, from the permanent, indefinite appropriation (fund) for OSC-Fitzgerald. DOJ determined that the appropriat… more
Date: September 24, 2008
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
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Military Disability System: Increased Supports for Servicemembers and Better Pilot Planning Could Improve the Disability Evaluation Process

Description: A letter report issued by the Government Accountability Office with an abstract that begins "In February 2007, a series of articles in The Washington Post about conditions at Walter Reed Army Medical Center highlighted problems in the military's disability evaluation system. Subsequently, the Department of the Army, Department of Defense (DOD), and Department of Veterans Affairs (VA) undertook initiatives to address concerns with the disability evaluation process. In 2007, the Army took steps t… more
Date: September 24, 2008
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
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Pension Benefit Guaranty Corporation: Improvements Needed to Address Financial and Management Challenges

Description: Testimony issued by the Government Accountability Office with an abstract that begins "The Pension Benefit Guaranty Corporation (PBGC) insures the retirement future of nearly 44 million people in more than 30,000 private-sector defined benefit pension plans. In July 2003, GAO designated PBGC's single-employer pension insurance program--its largest insurance program--as "high risk," including it on GAO's list of major programs that need urgent attention and transformation. The program remains on… more
Date: September 24, 2008
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
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Concentrated Animal Feeding Operations: EPA Needs More Information and a Clearly Defined Strategy to Protect Air and Water Quality

Description: Testimony issued by the Government Accountability Office with an abstract that begins "Concentrated animal feeding operations (CAFO) are large livestock and poultry operations that raise animals in a confined situation. CAFOs may improve the efficiency of animal production, but the large amounts of manure they produce can, if improperly managed, degrade air and water quality. The Environmental Protection Agency (EPA) regulates CAFOs and requires CAFOs that discharge certain pollutants to obtain… more
Date: September 24, 2008
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
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Small Business Administration: Opportunities Exist to Build on Leadership's Efforts to Improve Agency Performance and Employee Morale

Description: A letter report issued by the Government Accountability Office with an abstract that begins "Over the past 6 years, the Small Business Administration (SBA) has sought to transform the agency and improve its operations. A major focus of transformation was to centralize the remaining loan functions performed by 68 district offices. SBA's implementation of early transformation efforts did not reflect key practices GAO recommended in a 2003 report as important for successful transformations. Conseq… more
Date: September 24, 2008
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
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Visa Waiver Program: Actions Are Needed to Improve Management of the Expansion Process, and to Assess and Mitigate Program Risks

Description: Testimony issued by the Government Accountability Office with an abstract that begins "The Visa Waiver Program, which enables citizens of participating countries to travel to the United States without first obtaining a visa, has many benefits, but also has risks. In 2006, GAO found the Department of Homeland Security (DHS) needed to improve efforts to assess and mitigate these risks. In August 2007, Congress passed the 9/11 Act, which provides DHS the authority to consider expanding the program… more
Date: September 24, 2008
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
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Wildlife Refuges: Trends in Funding, Staffing, Habitat Management, and Visitor Services for Fiscal Years 2002 through 2007

Description: Testimony issued by the Government Accountability Office with an abstract that begins "The National Wildlife Refuge System, which is administered by the Fish and Wildlife Service in the Department of the Interior, comprises 585 refuges on more than 96 million acres of land and water that preserve habitat for waterfowl and other migratory birds, threatened and endangered species, and other wildlife. Refuges also provide wildlife-related activities such as hunting and fishing to about 40 million … more
Date: September 24, 2008
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
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Capitol Visitor Center: Update on Status of Project's Schedule and Cost as of September 24, 2008

Description: Testimony issued by the Government Accountability Office with an abstract that begins "The purpose of this testimony is to assist the Subcommittee in monitoring progress on the Capitol Visitor Center (CVC) project. This testimony will focus on (1) the Architect of the Capitol's (AOC) construction progress since the last CVC hearing on July 8, 2008, and (2) the project's expected cost at completion and funding status."
Date: September 24, 2008
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
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The Upcoming Transition: GAO's Efforts to Assist the 111th Congress and the Next Administration

Description: Testimony issued by the Government Accountability Office with an abstract that begins "The upcoming 2009 transition will be a unique and critical period for the U.S. government. It marks the first wartime presidential transition in 40 years. It will also be the first administration change for the relatively new Department of Homeland Security operating in the post 9/11 environment. The next administration will fill thousands of positions across government; there will be a number of new faces in… more
Date: September 24, 2008
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
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Information Technology: DOD and VA Have Increased Their Sharing of Health Information, but Further Actions Are Needed

Description: Testimony issued by the Government Accountability Office with an abstract that begins "The National Defense Authorization Act for Fiscal Year 2008 required the Department of Defense (DOD) and the Department of Veterans Affairs (VA) to accelerate the exchange of health information between the departments and to develop systems or capabilities that allow for full interoperability (generally, the ability of systems to use data that are exchanged) and that are compliant with federal standards. The … more
Date: September 24, 2008
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
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Emittance and Current of Electrons Trapped in a Plasma Wakefield Accelerator

Description: In recent experiments plasma electrons became trapped in a plasma wakefield accelerator (PWFA). The transverse size of these trapped electrons on a downstream diagnostic yields an upper limit measurement of transverse normalized emittance divided by peak current, {var_epsilon}{sub N,x}/I. The lowest upper limit for {var_epsilon}{sub N,x}/I measured in the experiment is 1.3 {center_dot} 10{sup -10} m/A.
Date: September 24, 2008
Creator: Kirby, N.; Blumenfeld, I.; Clayton, C. E.; Decker, F. J.; Hogan, M. J.; Huang, C. et al.
Partner: UNT Libraries Government Documents Department
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Experimental Tests of Cooling: Expectations and Additional Needs

Description: Cooling is a critical aspect for a high-performance Neutrino Factory or a MuonCollider. For this reason, considerable effort is being put toward theexperimental verification of this technique. The international Muon IonizationCooling Experiment, MICE, was approved to operate at Rutherford AppletonLaboratory (RAL) in the UK and beam line commissioning commenced in March, 2008. The MICE collaboration comprises about 130 scientists and engineers from Asia, Europe, and the U.S. In this paper we pre… more
Date: September 24, 2008
Creator: Zisman, Michael S
Partner: UNT Libraries Government Documents Department
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A Search for Neutrinoless Tau Decays to Three Leptons

Description: Using approximately 350 million {tau}{sup +}{tau}{sup -} pair events recorded with the BaBar detector at the Stanford Linear Accelerator Center between 1999 and 2006, a search has been made for neutrinoless, lepton-flavor violating tau decays to three lighter leptons. All six decay modes consistent with conservation of electric charge and energy have been considered. With signal selection efficiencies of 5-12%, we obtain 90% confidence level upper limits on the branching fraction {Beta}({tau} {… more
Date: September 24, 2008
Creator: Kolb, Jeffrey A. & /SLAC, /Oregon U.
Partner: UNT Libraries Government Documents Department
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Deformed Matrix Models, Supersymmetric Lattice Twists and N=1/4 Supersymmetry

Description: A manifestly supersymmetric nonperturbative matrix regularization for a twisted version of N = (8, 8) theory on a curved background (a two-sphere) is constructed. Both continuum and the matrix regularization respect four exact scalar supersymmetries under a twisted version of the supersymmetry algebra. We then discuss a succinct Q = 1 deformed matrix model regularization of N = 4 SYM in d = 4, which is equivalent to a non-commutative A*{sub 4} orbifold lattice formulation. Motivated by recent p… more
Date: September 24, 2008
Creator: Unsal, Mithat
Partner: UNT Libraries Government Documents Department
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CP Violation in B0 decays to Charmonium and Charm Final States

Description: We report on measurements of time-dependent CP-violation asymmetries in neutral B meson decays to charmonium and charm final states. The results are obtained from a data sample of (467 {+-} 5) x 10{sup 6} {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II B factory.
Date: September 24, 2008
Creator: Chen, Chunhui
Partner: UNT Libraries Government Documents Department
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Mesurement of the Decelerating Wake in a Plasma Wakefield Accelerator

Description: Recent experiments at SLAC have shown that high gradient acceleration of electrons is achievable in meter scale plasmas. Results from these experiments show that the wakefield is sensitive to parameters in the electron beam which drives it. In the experiment the bunch lengths were varied systematically at constant charge. The effort to extract a measurement of the decelerating wake from the maximum energy loss of the electron beam is discussed.
Date: September 24, 2008
Creator: Blumenfeld, I.; Clayton, C. E.; Decker, F. J.; Hogan, M. J.; Huang, C.; Ischebeck, R. et al.
Partner: UNT Libraries Government Documents Department
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Measurements of Coherent Synchrotron Radiation and its Impact on the LCLS Electron Beam

Description: In order to reach the high peak current required for an x-ray FEL, two separate magnetic dipole chicanes are used in the LCLS accelerator to compress the electron bunch length in stages. In these bunch compressors, coherent synchrotron radiation (CSR) can be emitted-induced either by a short electron bunch, or by any longitudinal density modulation that may be on the bunch. We present measurements, simulations, and analysis of (1) the CSR-induced energy loss, (2) the related transverse emittanc… more
Date: September 24, 2008
Creator: Bane, K. L. F.; Decker, F. J.; Ding, Y.; Dowell, D.; Emma, P.; Frisch, J. et al.
Partner: UNT Libraries Government Documents Department
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Compendium of Data for the Hanford Site (Fiscal Years 2004 to 2008) Applicable to Estimation of Recharge Rates

Description: This report is a compendium of recharge data collected in Fiscal Years 2004 through 2008 at various soil and surface covers found and planned in the 200 West and 200 East Areas of the U.S. Department of Energy’s Hanford Site in southeast Washington State. The addition of these new data to previously published recharge data will support improved estimates of recharge with respect to location and soil cover helpful to evaluations and risk assessments of radioactive and chemical wastes at this sit… more
Date: September 24, 2008
Creator: Nichols, William E.; Rockhold, Mark L. & Downs, Janelle L.
Partner: UNT Libraries Government Documents Department
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Toward Control of Matter: Basic Energy Science Needs for a New Class of X-Ray Light Sources

Description: Over the past quarter century, light-source user facilities have transformed research in areas ranging from gas-phase chemical dynamics to materials characterization. The ever-improving capabilities of these facilities have revolutionized our ability to study the electronic structure and dynamics of atoms, molecules, and even the most complex new materials, to understand catalytic reactions, to visualize magnetic domains, and to solve protein structures. Yet these outstanding facilities still h… more
Date: September 24, 2008
Creator: Arenholz, Elke; Belkacem, Ali; Cocke, Lew; Corlett, John; Falcone, Roger; Fischer, Peter et al.
Partner: UNT Libraries Government Documents Department
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Electronic Structure of the ID Conductor K0.3MoO3 studied using resonant inelastic x-ray scattering and soft x-ray emission spectroscopy

Description: The electronic structure of the quasi-one dimensional conductor K{sub 0.3}MoO{sub 3} has been measured using high resolution resonant inelastic x-ray scattering and x-ray absorption spectroscopy. The data is compared to that from the related two dimensional insulator {alpha}-MoO{sub 3}. Scattering features are observed from both oxides that are explained in terms of the band momentum selectivity of the scattering process, allowing a comparison of the scattering data to recent band structure cal… more
Date: September 24, 2008
Creator: Learmonth, T.; Glans, P.-A.; McGuinness, C.; Plucinski, L.; Zhang, Y.; Guo, J.-H. et al.
Partner: UNT Libraries Government Documents Department
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Integrated Computing, Communication, and Distributed Control of Deregulated Electric Power Systems

Description: Restructuring of the electricity market has affected all aspects of the power industry from generation to transmission, distribution, and consumption. Transmission circuits, in particular, are stressed often exceeding their stability limits because of the difficulty in building new transmission lines due to environmental concerns and financial risk. Deregulation has resulted in the need for tighter control strategies to maintain reliability even in the event of considerable structural changes, … more
Date: September 24, 2008
Creator: Bajura, Richard & Feliachi, Ali
Partner: UNT Libraries Government Documents Department
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The Development of the Linac Coherent Light Source RF Gun

Description: The Linac Coherent Light Source (LCLS) is the first x-ray laser user facility based upon a free electron laser (FEL) requiring extraordinary beam quality to saturate at 1.5 angstroms within a 100 meter undulator.[1] This new type of light source is using the last kilometer of the three kilometer linac at SLAC to accelerate the beam to an energy as high as 13.6 GeV and required a new electron gun and injector to produce a very bright beam for acceleration. At the outset of the project it was rec… more
Date: September 24, 2008
Creator: Dowell, David H.; Jongewaard, Erik; Lewandowski, James; Limborg-Deprey, Cecile; Li, Zenghai; Schmerge, John et al.
Partner: UNT Libraries Government Documents Department
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Three-Dimensional Analysis of Longitudinal Space Charge Microbunching Starting From Shot Noise

Description: The commissioning of the Linac Coherent Light Source (LCLS) injector showed unexpected coherent optical transition radiation (COTR) for an uncompressed electron bunch downstream of a dog-leg transport line. In this paper, we develop a three-dimensional analysis of longitudinal space charge microbunching to explain the phenomenon. Our analysis takes into account the transverse correlation of the longitudinal space charge field due to shot-noise startup and finite observation angles of the radiat… more
Date: September 24, 2008
Creator: Ratner, D.; Chao, A. & Huang, Z.
Partner: UNT Libraries Government Documents Department
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The Acid Hydrolysis Mechanism of Acetals Catalyzed by a Supramolecular Assembly in Basic Solution

Description: A self-assembled supramolecular host catalyzes the hydrolysis of acetals in basic aqueous solution. The mechanism of hydrolysis is consistent with the Michaelis-Menten kinetic model. Further investigation of the rate limiting step of the reaction revealed a negative entropy of activation ({Delta}S{double_dagger} = -9 cal mol{sup -1}K{sup -1}) and an inverse solvent isotope effect (k(H{sub 2}O)/k(D{sub 2}O) = 0.62). These data suggest that the mechanism of hydrolysis that takes place inside the … more
Date: September 24, 2008
Creator: Pluth, Michael D.; Bergman, Robert G. & Raymond, Kenneth N.
Partner: UNT Libraries Government Documents Department
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