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open access

2010 Census: Key Enumeration Activities Are Moving Forward, but Information Technology Systems Remain a Concern

Description: Testimony issued by the Government Accountability Office with an abstract that begins "In March 2008, GAO designated the 2010 Census a high-risk area in part because of information technology (IT) shortcomings and uncertainty over the ultimate cost of the census, now estimated at around $15 billion. The U.S. Census Bureau (Bureau) has since made improvements to various IT systems and taken other steps to mitigate the risks of a successful census. However, last year, GAO noted that a number of c… more
Date: February 23, 2010
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Postsecondary Education: College and University Endowments Have Shown Long-Term Growth, While Size, Restrictions, and Distributions Vary

Description: A letter report issued by the Government Accountability Office with an abstract that begins "The nation's 4-year not-for-profit colleges and universities collectively held more than $400 billion in endowments in 2008. Some institutions' large endowments coupled with the high and growing cost of college have led to questions about institutions' use of endowments. This mandated report describes (1) the size and change in value of endowments over the last 20 years, (2) the extent and manner to whi… more
Date: February 23, 2010
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Temporary Assistance for Needy Families: Fewer Eligible Families Have Received Cash Assistance Since the 1990s, and the Recession's Impact on Caseloads Varies by State

Description: A letter report issued by the Government Accountability Office with an abstract that begins "Following sweeping changes made to federal welfare policy in 1996 with the creation of the Temporary Assistance for Needy Families (TANF) program, the number of needy families who received cash assistance fell by more than half to 1.7 million in 2008. Poverty among children also fell from about 21 percent in 1995 to about 16 percent in 2000, rising again to 19 percent in 2008. The current recession deep… more
Date: February 23, 2010
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Higher Education: Information on Incentive Compensation Violations Substantiated by the U.S. Department of Education

Description: Correspondence issued by the Government Accountability Office with an abstract that begins "In 1992, Congress banned schools participating in federal student aid programs from paying commissions, bonuses, or other incentive payments to individuals based on their success in enrolling students or securing financial aid for them. Congress instituted this incentive compensation ban to eliminate abusive recruiting practices in which schools enrolled unqualified students who then received federal stu… more
Date: February 23, 2010
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

CHARACTERIZATION OF CYCLED SPHERICAL RESORCINOL-FORMALDEHYDE ION EXCHANGE RESIN

Description: This report presents characterization data for two spherical resorcinol-formaldehyde (sRF) resin beds that had processed cesium in non-radioactive and radioactive cycles. All column cycle operations for the resin beds including loading, displacements, elution, regeneration, breakthroughs, and solution analyses are reported in Nash and Duignan, 2009a. That report covered four ion exchange (IX) campaigns using the two {approx}11 mL beds in columns in a lead-lag arrangement. The first two campaign… more
Date: February 23, 2010
Creator: Nash, C. & Duignan, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Final technical report for award NO. DE-FG02-95ER20206

Description: ABSTRACT Initial work focused on the regulation of nitrite reductase, the defining reaction of denitrification as well as nitric oxide (NO) reductase. Expression of the genes encoding both proteins was controlled by NnrR. This regulator was shown to be responsive to NO. More recent work has shown NnrR function is also likely inhibited by oxygen. Therefore, it is this protein that sets the oxygen level at which nitrate respiration takes over from aerobic respiration. The gene encoding NO reducta… more
Date: February 23, 2010
Creator: Shapleigh, James P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Observation of off-Hugoniot shocked states with ultrafast time resolution

Description: We apply ultrafast single shot interferometry to determine the pressure and density of argon shocked from up to 7.8 GPa static initial pressure in a diamond anvil cell. This method enables the observation of thermodynamic states distinct from those observed in either single shock or isothermal compression experiments, and the observation of ultrafast dynamics in shocked materials. We also present a straightforward method for interpreting ultrafast shock wave data which determines the index of r… more
Date: February 23, 2010
Creator: Armstrong, M; Crowhurst, J; Bastea, S & Zaug, J
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Characterization of Glass-Like Fragments from the 3714 Building

Description: This report describes characterization of a sample obtained from the 3714 building in the 300 Area. Characterization of this unknown material was required for the demonolition activities in the 300 Area. The object of the study was to dertermine the nature of the material, composition, possible structure, evidence for hazards components. The green material is a sodium alumino-silicate glass. This conclusion is based on the composition provided by SEM-EDS, and the images that suggest a glass-lik… more
Date: February 23, 2010
Creator: Buck, Edgar C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Chemical Imaging of the Cell Membrane by NanoSIMS

Description: The existence of lipid microdomains and their role in cell membrane organization are currently topics of great interest and controversy. The cell membrane is composed of a lipid bilayer with embedded proteins that can flow along the two-dimensional surface defined by the membrane. Microdomains, known as lipid rafts, are believed to play a central role in organizing this fluid system, enabling the cell membrane to carry out essential cellular processes, including protein recruitment and signal t… more
Date: February 23, 2010
Creator: Weber, P K; Kraft, M L; Frisz, J F; Carpenter, K J & Hutcheon, I D
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

NanoSIMS analysis of Bacillus spores for forensics

Description: The threat associated with the potential use of radiological, nuclear, chemical and biological materials in terrorist acts has resulted in new fields of forensic science requiring the application of state-of-the-science analytical techniques. Since the anthrax letter attacks in the United States in the fall of 2001, there has been increased interest in physical and chemical characterization of bacterial spores. While molecular methods are powerful tools for identifying genetic differences, othe… more
Date: February 23, 2010
Creator: Weber, P K; Davisson, M L & Velsko, S P
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Free Trade Agreements: Impact on U.S. Trade and Implications for U.S. Trade Policy

Description: This report provides background on free trade areas (FTAs) -- arrangements among two or more countries under which they agree to eliminate tariffs and nontariff barriers on trade in goods among themselves -- why countries form them, and how they relate to U.S. trade policy. It also discusses recent developments, the economic impact of FTAs, the relation of FTAs to the World Trade Organization (WTO) and debate points, as well as general conclusions and implications for Congress.
Date: February 23, 2010
Creator: Cooper, William H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cluster Munitions: Background and Issues for Congress

Description: This report discusses the background of cluster munitions in the U.S. military, and the current Department of Defense (DOD) and Obama Administration stances on the topic. It also discusses the two major international initiatives to address cluster munitions: the Convention on Cluster Munitions (CCM) and negotiations under the U.N. Convention on Prohibitions or Restrictions on the Use of Certain Conventional Weapons (CCW).
Date: February 23, 2010
Creator: Feickert, Andrew & Kerr, Paul K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Industrial Competitiveness and Technological Advancement: Debate Over Government Policy

Description: This report discusses congressional interest in the pace of U.S. technological advancement due to its influence on U.S. economic growth, productivity, and international competitiveness. The proper role of the federal government in technology development and the competitiveness of U.S. industry continues to be a topic of congressional debate.
Date: February 23, 2010
Creator: Schacht, Wendy H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Pakistan's Nuclear Weapons: Proliferation and Security Issues

Description: This report discusses Pakistan's efforts to produce fissile material and other issues related to nuclear proliferation and improving its nuclear arsenal. It also discusses the steps Pakistan has taken to increase international confidence in its nuclear security. However, continued instability in Pakistan has caused some to question the effectiveness of its nuclear security reforms. The report addresses these issues as well, in addition to the U.S.-Pakistan relationship as it regards nuclear pol… more
Date: February 23, 2010
Creator: Kerr, Paul K. & Nikitin, Mary Beth
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characteristics of Knock in Hydrogen-Oxygen-Argon SI Engine

Description: A promising approach for improving the efficiency of internal combustion engines is to employ a working fluid with a high specific heat ratio such as the noble gas argon. Moreover, all harmful emissions are eliminated when the intake charge is composed of oxygen, nonreactive argon, and hydrogen fuel. Previous research demonstrated indicated thermal efficiencies greater than 45% at 5.5 compression ratio in engines operating with hydrogen, oxygen, and argon. However, knock limits spark advance an… more
Date: February 23, 2010
Creator: Killingsworth, Nick J.; Rapp, Vi H.; Flowers, Daniel L.; Aceves, Salvador M.; Chen, J-Y. & Dibble, Robert
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

HF-based etching processes for improving laser damage resistance of fused silica optical surfaces

Description: The effect of various HF-based etching processes on the laser damage resistance of scratched fused silica surfaces has been investigated. Conventionally polished and subsequently scratched fused silica plates were treated by submerging in various HF-based etchants (HF or NH{sub 4}F:HF at various ratios and concentrations) under different process conditions (e.g., agitation frequencies, etch times, rinse conditions, and environmental cleanliness). Subsequently, the laser damage resistance (at 35… more
Date: February 23, 2010
Creator: Suratwala, T I; Miller, P E; Bude, J D; Steele, R A; Shen, N; Monticelli, M V et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Low-Intensity Nonlinear Spectral Effects in Compton Scattering

Description: Nonlinear effects are known to occur in Compton scattering light sources, when the laser normalized 4-potential, A = e{radical}-A{sub {mu}}A{sup {mu}}/m{sub 0}c approaches unity. In this letter, it is shown that nonlinear spectral features can appear at arbitrarily low values of A, if the fractional bandwidth of the laser pulse, {Delta}{phi}{sup -1}, is sufficiently small to satisfy A{sup 2} {Delta}{phi} {approx_equal} 1. A three dimensional analysis, based on a local plane-wave, slow-varying e… more
Date: February 23, 2010
Creator: Hartemann, F V; Albert, F; Siders, C W & Barty, C P
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Plasmon resonant cavities in vertical nanowire arrays

Description: We investigate tunable plasmon resonant cavity arrays in paired parallel nanowire waveguides. Resonances are observed when the waveguide length is an odd multiple of quarter plasmon wavelengths, consistent with boundary conditions of node and antinode at the ends. Two nanowire waveguides satisfy the dispersion relation of a planar metal-dielectric-metal waveguide of equivalent width equal to the square field average weighted gap. Confinement factors over 103 are possible due to plasmon focusing… more
Date: February 23, 2010
Creator: Bora, Mihail; Fasenfest, Benjamin J.; Behymer, Elaine M.; Chang, Allan S-P & Bond, Tiziana C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Federal Register, Volume 75, Number 35, February 23, 2010, Pages 7927-8238

Description: Daily publication of the U.S. Office of the Federal Register contains rules and regulations, proposed legislation and rule changes, and other notices, including "Presidential proclamations and Executive Orders, Federal agency documents having general applicability and legal effect, documents required to be published by act of Congress, and other Federal agency documents of public interest" (p. ii). Table of Contents starts on page iii.
Date: February 23, 2010
Creator: United States. Office of the Federal Register.
Item Type: Refine your search to only Journal/Magazine/Newsletter
Partner: UNT Libraries Government Documents Department
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