A letter report issued by the Government Accountability Office with an abstract that begins "The Navy's depots provide critical maintenance support to operations around the world. The Department of Defense's (DOD) increased reliance on the private sector for depot maintenance support coupled with downsizing led to a deterioration of depots' capabilities and cost increases. In 2007, the Office of the Secretary of Defense (OSD) directed each service to submit a depot maintenance strategic plan and provided direction for the content of those plans. The 2007 U.S. Navy Depot Maintenance Strategic Plan contained a separate plan for each of five functional areas and an executive summary. GAO used qualitative content analyses to determine the extent to which two of the plans address (1) elements of a results-oriented management framework and (2) OSD's direction for the plan's content. GAO examined the plans for Navy aviation (NAVAIR) and ships (NAVSEA), which account for 94 percent of Navy depot workload."

A letter report issued by the Government Accountability Office with an abstract that begins "The Legal Services Corporation (LSC) was created as a private, nonprofit corporation to support legal assistance for low-income individuals on civil legal matters, primarily through federal grants and is primarily funded through federal appropriations. Effective internal controls over grant awards and oversight of grantees' performance are critical to LSC's mission. GAO and the LSC Inspector General have previously reported weaknesses and made recommendations. GAO's objectives for this report were to determine the extent to which LSC (1) implemented key internal controls in awarding and overseeing grantees, (2) measured its performance, (3) evaluated staffing needs, and (4) adhered to its budget execution processes. GAO analyzed key records and prior recommendations as well as interviewed LSC officials regarding LSC's internal control and performance frameworks, staffing, and contract processes."

Testimony issued by the Government Accountability Office with an abstract that begins "This testimony is based on our report entitled "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." As a result of sweeping changes made to federal welfare policy in 1996 with the creation of TANF, welfare changed from a program entitling eligible families to monthly cash payments under Aid to Families with Dependent Children (AFDC) to a capped block grant that emphasized employment and work supports for most adult participants who receive such assistance. With the creation of TANF, the number of families who received cash assistance fell significantly, from 4.8 million families on average each month in 1995--just prior to the creation of TANF--to 1.7 million in 2008. During this time frame, poverty among all children initially fell, from about 21 percent in 1995 to about 16 percent in 2000, and then rose thereafter to 19 percent in 2008. Most families receiving cash assistance are single mothers with children, and children in such families have historically experienced high rates of poverty. Furthermore, the recession, which began in late 2007 and deepened nationally …

A letter report issued by the Government Accountability Office with an abstract that begins "American Samoa is a U.S. insular area that operates its customs and immigration programs according to its own laws and independent of the United States. As such, U.S. agencies, such as U.S. Customs and Border Protection, have no roles in operating the customs or immigration programs in American Samoa. U.S. officials have raised questions about how American Samoa operates its customs and immigration programs, and if this introduces any risks to the security of American Samoa or the rest of the United States. GAO was asked to review American Samoa's customs and immigration programs and this report discusses (1) the operations of American Samoa's customs and immigration programs, and (2) the extent to which U.S. and American Samoa agencies have identified potential risks in American Samoa's customs and immigration programs. GAO reviewed available statutes, regulations, policies, and procedures governing American Samoa and U.S. customs and immigration programs. GAO also visited American Samoa and interviewed U.S. and American Samoan officials to obtain insights."

A letter report issued by the Government Accountability Office with an abstract that begins "The 2003 Roadmap for Peace process sponsored by the United States and other nations obligates the Palestinian Authority (PA) and the Government of Israel to undertake security efforts as a necessary precursor for achieving the long-standing objective of establishing a Palestinian state as part of the two-state solution for peace in the Middle East. In 2005 the Department of State (State) created the office of the United States Security Coordinator (USSC) to help the parties meet these obligations. GAO was asked to (1) describe the nature and extent of U.S. security assistance to the PA since 2007; (2) assess State's efforts to measure the effectiveness of its security assistance; and (3) describe factors that may affect the implementation of U.S. security assistance programs. GAO analyzed documents; interviewed officials and regional experts; and conducted fieldwork in Jerusalem, the West Bank, Israel, and Jordan."

A letter report issued by the Government Accountability Office with an abstract that begins "Since 2001, the National Archives and Records Administration (NARA) has been working to develop an electronic records archive (ERA) to preserve and provide access to massive volumes and all types of electronic records. NARA certified initial operating capability of the first two phases of ERA in June 2008 and December 2008 and plans to achieve full operating capability for the system by 2012. As required by the Consolidated Appropriations Act, NARA submitted an expenditure plan to Congress to support its request for fiscal year 2010 ERA funding. The act also requires that this plan meet six conditions, including a review by GAO. GAO's objectives in reviewing the fiscal year 2010 plan were to (1) determine whether the plan satisfies the legislative conditions, (2) determine the extent to which NARA has implemented prior GAO recommendations, and (3) provide any other observations on the plan or the ERA acquisition. To do this, GAO reviewed the expenditure plan and other agency documents and interviewed NARA officials."

A letter report issued by the Government Accountability Office with an abstract that begins "Global hunger continues to worsen despite world leaders' 1996 pledge--reaffirmed in 2000 and 2009--to halve hunger by 2015. To reverse this trend, in 2009 major donor countries pledged $22 billion in a 3-year commitment to agriculture and food security in developing countries, of which $3.5 billion is the U.S. share. Through analysis of agency documents, interviews with agency officials and their development partners, and fieldwork in five recipient countries, GAO examined (1) the types and funding of food security programs and activities of relevant U.S. government agencies; and (2) progress in developing an integrated U.S. governmentwide strategy to address global food insecurity as well as potential vulnerabilities of that strategy."

A letter report issued by the Government Accountability Office with an abstract that begins "Decisions by the military services on where to base their force structure can have significant strategic, socioeconomic, and cost implications for the Department of Defense (DOD) and the communities surrounding the bases. Each service uses its own process to make basing decisions. The House Committee on Armed Services directed GAO to review the services' basing decision processes. GAO examined the extent to which (1) the services have comprehensive processes in place that are designed to result in well-informed basing decisions and (2) DOD exercises management control of these processes. GAO reviewed and analyzed DOD and service guidance, studies, and relevant documents on implementation and oversight of the services' basing processes."

A letter report issued by the Government Accountability Office with an abstract that begins "The Defense Logistics Agency (DLA) procures and manages large supplies of spare parts to keep military equipment ready and operating. At a time when U.S. military forces and equipment are in high demand and the nation faces long-term fiscal challenges, it is critical that DLA ensure that the warfighter is supplied with the right items at the right time and exercise good stewardship over the billions of dollars invested in its inventories. GAO has identified supply chain management as a high-risk area due in part to high levels of inventory beyond what is needed to support requirements and problems in accurately forecasting demand for spare parts. GAO's objectives were to (1) determine the extent to which DLA's inventory of spare parts reflects the amount needed to support requirements; and (2) identify causes, if applicable, for DLA's having spare parts inventory that does not align with requirements. GAO analyzed DLA inventory data for fiscal years 2006 through 2008."

Testimony issued by the Government Accountability Office with an abstract that begins "Global hunger continues to worsen despite world leaders' 1996 pledge--reaffirmed in 2000 and 2009--to halve hunger by 2015. To reverse this trend, in 2009 major donor countries pledged about $22.7 billion in a 3-year commitment to agriculture and food security in developing countries, of which $3.5 billion is the U.S. share. This testimony addresses (1) the types and funding of food security programs and activities of relevant U.S. government agencies and (2) progress in developing an integrated U.S. governmentwide strategy to address global food insecurity and the strategy's potential vulnerabilities. This is based on a new GAO report being released at today's hearing (GAO-10-352)."

Testimony issued by the Government Accountability Office with an abstract that begins "This testimony discusses our work on the F-35 Lightning II, also known as the Joint Strike Fighter (JSF). The JSF is the Department of Defense's (DOD) most costly and ambitious aircraft acquisition. DOD is seeking to simultaneously develop and field three aircraft variants for the Air Force, Navy, Marine Corps, and eight international partners. The JSF program is to provide critical replacement aircraft that will serve as the heart of future tactical air forces. It will require a long-term commitment to very large annual funding outlays. The current estimated investment is $323 billion to develop and procure 2,457 aircraft."

This report provides overview information on the proposed FY2011 budget request for the Department of Homeland Security (DHS) programs that provide assistance to state and local governments. These programs are primarily used by first responders -- including firefighters, emergency medical personnel, emergency managers, and law enforcement officers -- to provide assistance for training, exercises, the purchase of equipment, and other support for terrorism and disaster preparedness and response activities.

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.

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Local thermal hot-spots in microprocessors lead to worst case provisioning of global cooling resources, especially in large-scale systems. However, efficiency of cooling solutions degrade non-linearly with supply temperature, resulting in high power consumption and cost in cooling - 50 {approx} 100% of IT power. Recent advances in active cooling techniques have shown on-chip thermoelectric coolers (TECs) to be very efficient at selectively eliminating small hot-spots, where applying current to a superlattice film deposited between silicon and the heat spreader results in a Peltier effect that spreads the heat and lowers the temperature of the hot-spot significantly to improve chip reliability. In this paper, we propose that hot-spot mitigation using thermoelectric coolers can be used as a power management mechanism to allow global coolers to be provisioned for a better worst case temperature leading to substantial savings in cooling power. In order to quantify the potential power savings from using TECs in data center servers, we present a detailed power model that integrates on-chip dynamic and leakage power sources, heat diffusion through the entire chip, TEC and global cooler efficiencies, and all their mutual interactions. Our multiscale analysis shows that, for a typical data center, TECs allow global coolers to operate …

Ultra intense short pulse laser pulses incident on solid targets can generate energetic protons. In additions to their potentially important applications such as in cancer treatments and proton fast ignition, these protons are essential to understand the complex physics of intense laser plasma interaction. To better characterize these laser-produced protons, we designed and constructed a novel, spatially imaging proton spectrometer that will not only measure proton energy distribution with high resolution, but also provide its angular characteristics. The information obtained from this spectrometer compliments those from commonly used diagnostics including radiochromic film packs, CR39 nuclear track detectors, and non-imaging magnetic spectrometers. The basic characterizations and sample data from this instrument are presented.

The CERN Axion Solar Telescope (CAST) is searching for solar axions which could be produced in the core of the Sun via the so-called Primakoff effect. Not only would these hypothetical particles solve the strong CP problem, but they are also one of the favored candidates for dark matter. In order to look for axions originating from the Sun, CAST uses a decommissioned LHC prototype magnet. In its 10 m long magnetic field region of 9 Tesla, axions could be reconverted into X-ray photons. Different X-ray detectors are installed on both ends of the magnet, which is mounted on a structure built to follow the Sun during sunrise and sunset for a total of about 3 hours per day. The analysis of the data acquired during the first phase of the experiment with vacuum in the magnetic field region yielded the most restrictive experimental upper limit on the axion-to-photon coupling constant for axion masses up to about 0.02 eV. In order to extend the sensitivity of the experiment to a wider mass range, the CAST experiment continues its search for axions with helium in the magnet bores. In this way it is possible to restore coherence of conversion for larger …

Cadmium Manganese Telluride (CdMnTe) recently emerged as a promising material for room-temperature X- and gamma-ray detectors. It offers several potential advantages over CdZnTe. Among them is its optimal tunable band gap ranging from 1.7-2.2 eV, and its relatively low (< 50%) content of Mn compared to that of Zn in CdZnTe that assures this favorable band-gap range. Another important asset is the segregation coefficient of Mn in CdTe that is approximately unity compared to 1.35 for Zn in CdZnTe, so ensuring the homogenous distribution of Mn throughout the ingot; hence, a large-volume stoichiometric yield is attained. However, some materials issues primarily related to the growth process impede the production of large, defect-free single crystals. The high bond-ionicity of CdMnTe entails a higher propensity to crystallize into a hexagonal structure rather than to adopt the expected zinc-blend structure, which is likely to generate twins in the crystals. In addition, bulk defects generate in the as-grown crystals due to the dearth of high-purity Mn, which yields a low-resistivity material. In this presentation, we report on our observations of such material defects in current CdMnTe materials, and our evaluation of its potential as an alternative detector material to the well-known CdZnTe detectors. We …

A process for removing aluminum from tank waste simulants by adding lithium and precipitating Li-Al-dihydroxide (Lithiumhydrotalcite, [LiAl{sub 2}(OH){sub 6}]{sup +}X{sup -}) has been verified. The tests involved a double-shell tank (DST) simulant and a single-shell tank (SST) simulant. In the case of the DST simulant, the product was the anticipated Li-hydrotalcite. For the SST simulant, the product formed was primarily Li-phosphate. However, adding excess Li to the solution did result in the formation of traces of Li-hydrotalcite. The Li-hydrotalcite from the DST supernate was an easily filterable solid. After four water washes the filter cake was a fluffy white material made of < 100 {micro}m particles made of smaller spheres. These spheres are agglomerates of {approx} 5 {micro}m diameter platelets with < 1 {micro}m thickness. Chemical and mineralogical analyses of the filtrate, filter cake, and wash waters indicate a removal of 90+ wt% of the dissolved Al for the DST simulant. For the SST simulant, the main competing reaction to the formation of lithium hydrotalcite appears to be the formation of lithium phosphate. In case of the DST simulant, phosphorus co-precipitated with the hydrotalcite. This would imply the added benefit of the removal of phosphorus along with aluminum in the …

A general, efficient method is demonstrated for exchanging native oxyanionic ligands on inorganic nanocrystals with functional trimethylsilylated (TMS) chalcogenido ligands. In addition, newly synthesized TMS mixed chalcogenides leverage preferential reactivity of TMS-S bonds over TMS-O bonds, enabling efficient transfer of luminescent nanocrystals into aqueous media with retention of their optical properties.

On-site inspection (OSI) is one of the four verification provisions of the Comprehensive Nuclear Test Ban Treaty (CTBT). Under the provisions of the CTBT, once the Treaty has entered into force, any signatory party can request an on-site inspection, which can then be carried out after approval (by majority voting) of the Executive Council. Once an OSI is approved, a team of 40 inspectors will be assembled to carry out an inspection to ''clarify whether a nuclear weapon test explosion or any other nuclear explosion has been carried out in violation of Article I''. One challenging aspect of carrying out an on-site inspection (OSI) in the case of a purported underground nuclear explosion is to detect and locate the underground effects of an explosion, which may include an explosion cavity, a zone of damaged rock, and/or a rubble zone associated with an underground collapsed cavity. The CTBT (Protocol, Section II part D, paragraph 69) prescribes several types of geophysical investigations that can be carried out for this purpose. One of the methods allowed by the CTBT for geophysical investigation is referred to in the Treaty Protocol as ''resonance seismometry''. This method, which was proposed and strongly promoted by Russia during …

Iron-sulfur (FeS) centers are essential for biology and inspirational in chemistry. These protein cofactors are broadly defined as active sites in which Fe is coordinated by S-donor ligands, often in combination with extra non-protein components, for example, additional metal atoms such as Mo and Ni, and soft ligands such as CN{sup -} and CO. Iron-sulfur centers are inherently air sensitive: they are found in essentially all organisms and it is possible that they were integral components of the earliest forms of life, well before oxygen (O{sub 2}) appeared. Proteins containing FeS cofactors perform a variety of biological functions ranging across electron transfer, acid-base catalysis, and sensing where they are agents for cell regulation through transcription (DNA) or translation (RNA). They are redox catalysts for radical-based reactions and the activation of H{sub 2}, N{sub 2} and CO{sub 2}, processes that offer scientific and economic challenges for industry. Iron-sulfur centers provide the focus for fundamental investigations of chemical bonding, spectroscopy and paramagnetism, and their functions have numerous implications for health and medicine and applications for technology, including renewable energy. The 2010 Iron-Sulfur Enzymes GRC will bring together researchers from different disciplines for in-depth discussions and presentations of the latest developments. There will …