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2010 Tax Filing Season: IRS's Performance Improved in Some Key Areas, but Efficiency Gains Are Possible in Others (open access)

2010 Tax Filing Season: IRS's Performance Improved in Some Key Areas, but Efficiency Gains Are Possible in Others

A letter report issued by the Government Accountability Office with an abstract that begins "The Internal Revenue Service's (IRS) filing season is an enormous undertaking that includes processing individual income tax returns, issuing refunds, and responding to taxpayers. GAO was asked to assess IRS's 2010 filing season performance in relation to its goals and prior years' performance processing individual tax returns, answering telephones, and delivering Web and face-to-face services. To conduct the analysis, GAO analyzed data and documents from IRS, interviewed IRS officials, observed IRS operations, and interviewed tax industry experts."
Date: December 16, 2010
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Quadrennial Homeland Security Review: 2010 Reports Addressed Many Required Elements, but Budget Planning Not Yet Completed (open access)

Quadrennial Homeland Security Review: 2010 Reports Addressed Many Required Elements, but Budget Planning Not Yet Completed

Correspondence issued by the Government Accountability Office with an abstract that begins "The United States continues to face a myriad of broad and evolving threats, such as the October 2010 attempted attack on the nation's air cargo system, that underscore the high priority the federal government places on homeland security and efforts to coordinate security roles, responsibilities, and activities across a wide variety of stakeholders, including state, local, tribal, private sector, nongovernmental, and international partners. The Implementing Recommendations of the 9/11 Commission Act of 2007 (9/11 Commission Act) required that beginning in 2009 and every 4 years thereafter the Department of Homeland Security (DHS) conduct a quadrennial review that provides a comprehensive examination of the homeland security strategy of the United States. According to the act, the review is to delineate the national homeland security strategy, outline and prioritize critical homeland security missions, and assess the organizational alignment of DHS to the homeland security strategy and mission areas, among other things. The act required that DHS conduct the quadrennial review in consultation with stakeholders, such as heads of federal agencies; state, local, and tribal governments; private sector representatives; and academics and other policy experts. The act also specified that DHS …
Date: December 16, 2010
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Defense Management: DOD Needs to Monitor and Assess Corrective Actions Resulting from Its Corrosion Study of the F-35 Joint Strike Fighter (open access)

Defense Management: DOD Needs to Monitor and Assess Corrective Actions Resulting from Its Corrosion Study of the F-35 Joint Strike Fighter

Correspondence issued by the Government Accountability Office with an abstract that begins "This report responds to House Report 111-166 to accompany the House bill (H.R. 2647) that later became the National Defense Authorization Act for Fiscal Year 2010. The House Report noted the House Armed Services Committee's concerns that the lessons learned regarding the prevention and management of corrosion in the F-22 Raptor had not been fully applied to the development and acquisition of the F-35 Joint Strike Fighter. The House Report directed that the Director of Corrosion Policy and Oversight evaluate the F-35 program and submit a report to the defense committees within 180 days after the act was enacted. The Department of Defense (DOD) report was also to include implications for existing and future weapon systems based on the findings of the F-35 evaluation. DOD submitted its report to Congress in September 2010. House Report 111-166 also directed the Comptroller General to provide an assessment of the completeness of DOD's evaluation and submit a report to the defense committees within 60 days after the date on which DOD submits its evaluation. In assessing the completeness of DOD's corrosion study, our objectives were to determine the extent to which …
Date: December 16, 2010
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
B-2 Bomber: Review of the Air Force's Decision to Change Extremely High Frequency Satellite Communications Antennas (open access)

B-2 Bomber: Review of the Air Force's Decision to Change Extremely High Frequency Satellite Communications Antennas

Correspondence issued by the Government Accountability Office with an abstract that begins "The B-2 bomber is a low-observable, long-range strike aircraft capable of entering heavily defended areas to deliver both conventional and nuclear weapons. The B-2 currently uses an ultra high frequency (UHF) satellite communications system, but because of aging military satellites, the Air Force determined a new communications system was needed. As a result, the Air Force began an incremental acquisition approach for replacing the B-2's existing UHF satellite communications system with an extremely high frequency (EHF) communications capability. The first increment, which is expected to begin production in late fiscal year 2011, is designed to upgrade computer system speed and storage capacity. The second increment is expected to provide secure, survivable strategic communications connectivity, thus allowing B-2 pilots to receive emergency action messages during strategic operations--an EHF capability that U.S. Strategic Command has stated it needs by fiscal year 2016. The third increment is intended to enable the EHF system to connect with the Global Information Grid. The focus of our review was the second increment, which is scheduled to enter the engineering and manufacturing development (EMD) phase in early fiscal year 20131 and has an estimated total …
Date: December 16, 2010
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Afghanistan: Politics, Elections, and Government Performance (open access)

Afghanistan: Politics, Elections, and Government Performance

This report discusses the current political state of Afghanistan, as well as the Afghan government. This report also discusses Afghanistan's relationship with the United States, particularly U.S. efforts to urge President Hamid Karzai, to address corruption within the Afghan government. The report also includes discussion of election fraud and corruption in Afghanistan.
Date: December 16, 2010
Creator: Katzman, Kenneth
Object Type: Report
System: The UNT Digital Library
Federal Work/Life Programs: Agencies Generally Satisfied with OPM Assistance, but More Tracking and Information Sharing Needed (open access)

Federal Work/Life Programs: Agencies Generally Satisfied with OPM Assistance, but More Tracking and Information Sharing Needed

A letter report issued by the Government Accountability Office with an abstract that begins "To improve its ability to recruit and retain federal employees, agencies have implemented a wide range of work/life programs, such as flexible work schedules, child care, and employee assistance programs. The Office of Personnel Management (OPM) plays a key role in guiding federal human capital initiatives, including the implementation of work/life programs. As requested, GAO determined the extent to which: (1) OPM provides assistance and guidance to federal agencies for establishing and enhancing work/life programs; (2) OPM or the federal agencies track, evaluate, or modify work/life programs; and (3) OPM has identified leading practices in the private sector for the implementation of work/life programs and shared this information with federal agencies. To do this, GAO reviewed OPM policy and guidance; surveyed 40 federal officials--20 Chief Human Capital Officers (CHCO) and 20 work/life managers; and interviewed officials from seven private sector companies recognized for the quality of their work/life programs."
Date: December 16, 2010
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Information Sharing: DHS Could Better Define How It Plans to Meet Its State and Local Mission and Improve Performance Accountability (open access)

Information Sharing: DHS Could Better Define How It Plans to Meet Its State and Local Mission and Improve Performance Accountability

A letter report issued by the Government Accountability Office with an abstract that begins "To enhance the usefulness of intelligence products it provides to state and local partners, I&A has initiatives underway to identify these partners' information needs and obtain feedback on the products, but strengthening these efforts could support the development of future products. As of August 2010, I&A had finalized information needs--which are owned and controlled by the states--for 9 of the 50 states. I&A was working with remaining states to identify their needs, but it had not established mutually agreed upon milestones for completing this effort, in accordance with program management principles. Working with states to establish such milestones and addressing any barriers to identifying their needs could better assist states in the timely completion of this process. In addition, I&A has begun issuing a new customer feedback survey to recipients of its products and plans to begin analyzing this feedback to determine the value of the products, but it has not developed plans to report the results of its analyses to state and local partners. Reporting the results to these partners and actions it has taken in response could help I&A demonstrate that the feedback is …
Date: December 16, 2010
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Sudan: The Crisis in Darfur and Status of the North-South Peace Agreement (open access)

Sudan: The Crisis in Darfur and Status of the North-South Peace Agreement

Sudan, geographically the largest country in Africa, has been ravaged by civil war intermittently for four decades, resulting in catastrophic civilian casualties and displacements. This report discusses the history of Sudan's civil unrest and the subsequent crisis in Darfur, as well as United Nations and United States aid and peacekeeping efforts and current related policy under the Obama Administration.
Date: December 16, 2010
Creator: Dagne, Ted
Object Type: Report
System: The UNT Digital Library
Somalia: Current Conditions and Prospects for a Lasting Peace (open access)

Somalia: Current Conditions and Prospects for a Lasting Peace

This report discusses the political climate of Somalia, which has undergone extreme unrest for years. The report focuses on events since October 2002, including the formation of the Transitional Federal Government (TFG) in 2007 and the TFG's cooperation with the Re-Liberation of Somalia (ARS) in 2008. The report also discusses the U.S. relationship with Somalia under the Obama Administration, including U.S. economic assistance given to Somalia and U.S. efforts to contain Somalian terrorist groups.
Date: December 16, 2010
Creator: Dagne, Ted
Object Type: Report
System: The UNT Digital Library
Improving Student Success: Researching How Students Use Electronic Library Resources (open access)

Improving Student Success: Researching How Students Use Electronic Library Resources

This paper presents a research study conducted at UNT. The UNT Libraries partnered with the Department of Anthropology at UNT to conduct ethnographic research of how UNT students use the electronic library services.
Date: December 16, 2010
Creator: Henry, Lisa; Antonovic, Annette; Buete, Sherri; Deardorff, Philip; DoCarmo, Tania; Gutierrez, Paula et al.
Object Type: Paper
System: The UNT Digital Library
The Greensheet (Houston, Tex.), Vol. 41, No. 549, Ed. 1 Thursday, December 16, 2010 (open access)

The Greensheet (Houston, Tex.), Vol. 41, No. 549, Ed. 1 Thursday, December 16, 2010

Free weekly newspaper that includes business and classified advertising.
Date: December 16, 2010
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 41, No. 548, Ed. 1 Thursday, December 16, 2010 (open access)

The Greensheet (Houston, Tex.), Vol. 41, No. 548, Ed. 1 Thursday, December 16, 2010

Free weekly newspaper that includes business and classified advertising.
Date: December 16, 2010
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Port Aransas South Jetty (Port Aransas, Tex.), Vol. 41, No. 50, Ed. 1 Thursday, December 16, 2010 (open access)

Port Aransas South Jetty (Port Aransas, Tex.), Vol. 41, No. 50, Ed. 1 Thursday, December 16, 2010

Weekly newspaper from Port Aransas, Texas on Mustang Island that includes local, state and national news along with extensive advertising.
Date: December 16, 2010
Creator: Judson, Mary Henkel
Object Type: Newspaper
System: The Portal to Texas History
Texas Jewish Post (Fort Worth, Tex.), Vol. 64, No. 50, Ed. 1 Thursday, December 16, 2010 (open access)

Texas Jewish Post (Fort Worth, Tex.), Vol. 64, No. 50, Ed. 1 Thursday, December 16, 2010

Weekly Jewish newspaper from Fort Worth, Texas that includes local, state and national news along with extensive advertising.
Date: December 16, 2010
Creator: Wisch-Ray, Sharon
Object Type: Newspaper
System: The Portal to Texas History
Charmed Hadron Physics at BABAR (open access)

Charmed Hadron Physics at BABAR

We present a study of the D{sup +}{pi}{sup -}, D{sup 0}{pi}{sup +}, and D*{sup +}{pi}{sup -} systems in inclusive e{sup +}e{sup -} {yields} c{bar c} interactions in a search for new excited D meson states. We use a dataset, consisting of {approx}454 fb{sup -1}, collected at center-of-mass energies near 10.58 GeV by the BABAR detector at the SLAC PEP-II asymmetric-energy collider. We observe, for the first time, candidates for the radial excitations of the D{sup 0}, D*{sup 0}, and D*{sup +}, as well as the L = 2 excited states of the D{sup 0} and D{sup +}, where L is the orbital angular momentum of the quarks.
Date: December 16, 2010
Creator: Benitez, Jose
Object Type: Article
System: The UNT Digital Library
Cosmic Ray e +/(e- + e+), p-bar/p Ratios Explained by an Injection Model Based on 2 Gamma-ray Observations (open access)

Cosmic Ray e +/(e- + e+), p-bar/p Ratios Explained by an Injection Model Based on 2 Gamma-ray Observations

We present a model of cosmic ray (CR) injection into the Galactic space based on recent {gamma}-ray observations of supernova remnants (SNRs) and pulsar wind nebulae (PWNe) by the Fermi Large Area Telescope (Fermi) and atmospheric Cherenkov telescopes (ACTs). Steady-state (SS) injection of nuclear particles and electrons (e{sup -}) from the Galactic ensemble of SNRs, and electrons and positrons (e{sup +}) from the Galactic ensemble of PWNe are assumed, with their spectra deduced from {gamma}-ray observations and recent evolution models. The ensembles of SNRs and PWNe are assumed to share the same spatial distributions and the secondary CR production in dense molecular clouds interacting with SNRs is incorporated in the model. Propagation of CRs to Earth is calculated using GALPROP with 2 source distributions and 2 Galaxy halo sizes. We show that this observation-based model reproduces the positron fraction e{sup +}/(e{sup -} + e{sup +}) and antiproton-to-proton ratio ({bar p}/p) reported by PAMELA reasonably well without calling for new sources. Significant discrepancy is found, however, between our model and the e{sup -} + e{sup +} spectrum measured by Fermi below {approx} 20 GeV. Important quantities for Galactic CRs, including their energy injection, average lifetime, and mean gas density along their …
Date: December 16, 2010
Creator: Kamae, T.; Lee, S. H.; Baldini, L.; Giordano, F.; Grondin, M.H.; Latronico, L. et al.
Object Type: Report
System: The UNT Digital Library
A three wavelength scheme to optimize hohlraum coupling on the National Ignition Facility (open access)

A three wavelength scheme to optimize hohlraum coupling on the National Ignition Facility

By using three tunable wavelengths on different cones of laser beams on the National Ignition Facility, numerical simulations show that the energy transfer between beams can be tuned to redistribute the energy within the cones of beams most prone to backscatter instabilities. These radiative hydrodynamics and laser-plasma interaction simulations have been tested against large scale hohlraum experiments with two tunable wavelengths, and reproduce the hohlraum energetics and symmetry. Using a third wavelength provides a greater level of control of the laser energy distribution and coupling in the hohlraum, and could significantly reduce stimulated Raman scattering losses and increase the hohlraum radiation drive while maintaining a good implosion symmetry.
Date: December 16, 2010
Creator: Michel, P; Divol, L; Town, R & Rosen, M
Object Type: Article
System: The UNT Digital Library
EFFECT OF IMPURITIES ON THE PERFORMANCE OF A Pd-Ag DIFFUSER (open access)

EFFECT OF IMPURITIES ON THE PERFORMANCE OF A Pd-Ag DIFFUSER

A commercially fabricated diffuser purchased from Johnson-Matthey, Inc. was evaluated for performance characterization testing at the Savannah River National Laboratory (SRNL). Different impurities are often present in the feed streams of the process diffusers, but the effect of these impurities on the diffuser performance is currently unknown. Various impurities were introduced into the feed stream of the diffuser at various levels ranging from 0.5% to 10% of the total flow in order to determine the effect that these impurities have on the permeation of hydrogen through the palladium-silver membrane. The introduction of various impurities into the feed stream of the diffuser had a minimal effect on the overall permeation of hydrogen through the Pd-Ag membrane. Of the four impurities introduced into the feed stream, carbon monoxide (CO) was the only impurity that showed any evidence of causing a reduction in the amount of hydrogen permeating through the Pd-Ag membrane. The hydrogen permeation returned to its baseline level after the CO was removed from the feed stream. There were no lasting effects of the CO exposure on the ability of the membrane to effectively separate hydrogen from the non-hydrogen species in the gas stream under the conditions tested.
Date: December 16, 2010
Creator: Morgan, G.
Object Type: Article
System: The UNT Digital Library
Gauge theories from D7-branes over vanishing 4-cycles (open access)

Gauge theories from D7-branes over vanishing 4-cycles

We study quiver gauge theories on D7-branes wrapped over vanishing holomorphic 4-cycles. We investigate how to incorporate O7-planes and/or flavor D7-branes, which are necessary to cancel anomalies. These theories are chiral, preserve four supercharges and exhibit very rich infrared dynamics. Geometric transitions and duality in the presence of O-planes are analyzed. We study the Higgs branch of these quiver theories, showing the emergence of fuzzy internal dimensions. This branch is related to noncommutative instantons on the divisor wrapped by the seven-branes. Our results have a natural application to the recently introduced F(uzz) limit of F-theory.
Date: December 16, 2010
Creator: Franco, Sebastian; /Santa Barbara, KITP; Torroba, Gonzalo & /SLAC /Stanford U., Phys. Dept.
Object Type: Article
System: The UNT Digital Library
The X-ray Power Density Spectrum of the Seyfert 2 Galaxy NGC 4945: Analysis and Application of the Method of Light Curve Simulations (open access)

The X-ray Power Density Spectrum of the Seyfert 2 Galaxy NGC 4945: Analysis and Application of the Method of Light Curve Simulations

The study of the power density spectrum (PDS) of fluctuations in the X-ray flux from active galactic nuclei (AGN) complements spectral studies in giving us a view into the processes operating in accreting compact objects. An important line of investigation is the comparison of the PDS from AGN with those from galactic black hole binaries; a related area of focus is the scaling relation between time scales for the variability and the black hole mass. The PDS of AGN is traditionally modeled using segments of power laws joined together at so-called break frequencies; associations of the break time scales, i.e., the inverses of the break frequencies, with time scales of physical processes thought to operate in these sources are then sought. I analyze the Method of Light Curve Simulations that is commonly used to characterize the PDS in AGN with a view to making the method as sensitive as possible to the shape of the PDS. I identify several weaknesses in the current implementation of the method and propose alternatives that can substitute for some of the key steps in the method. I focus on the complications introduced by uneven sampling in the light curve, the development of a fit …
Date: December 16, 2010
Creator: Mueller, Martin
Object Type: Report
System: The UNT Digital Library
The Greensheet (Fort Worth, Tex.), Vol. 34, No. 256, Ed. 1 Thursday, December 16, 2010 (open access)

The Greensheet (Fort Worth, Tex.), Vol. 34, No. 256, Ed. 1 Thursday, December 16, 2010

Free weekly newspaper that includes business and classified advertising.
Date: December 16, 2010
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 135, No. 30, Ed. 1 Thursday, December 16, 2010 (open access)

The Albany News (Albany, Tex.), Vol. 135, No. 30, Ed. 1 Thursday, December 16, 2010

Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date: December 16, 2010
Creator: Lucas, Melinda L.
Object Type: Newspaper
System: The Portal to Texas History
The Greensheet (Fort Worth, Tex.), Vol. 34, No. 257, Ed. 1 Thursday, December 16, 2010 (open access)

The Greensheet (Fort Worth, Tex.), Vol. 34, No. 257, Ed. 1 Thursday, December 16, 2010

Free weekly newspaper that includes business and classified advertising.
Date: December 16, 2010
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Greensheet (Arlington-Grand Prairie, Tex.), Vol. 34, No. 255, Ed. 1 Thursday, December 16, 2010 (open access)

The Greensheet (Arlington-Grand Prairie, Tex.), Vol. 34, No. 255, Ed. 1 Thursday, December 16, 2010

Free weekly newspaper that includes business and classified advertising.
Date: December 16, 2010
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History