A letter report issued by the Government Accountability Office with an abstract that begins "The Postal Accountability and Enhancement Act of 2006 required GAO to evaluate strategies and options for reforms of the United States Postal Service (USPS). USPS's business model is to fulfill its mission through self-supporting, businesslike operations; however, USPS has experienced increasing difficulties. Due to volume declines, losses, a cash shortage, and rising debt, GAO added USPS's financial condition to its high-risk list in July 2009. GAO's objectives were to assess (1) the viability of USPS's business model, (2) strategies and options to address challenges to its business model, and (3) actions Congress and USPS need to take to facilitate progress toward financial viability. GAO primarily drew on its past work; other studies; USPS data; interviews with USPS, unions, management associations, Postal Regulatory Commission, and mailing industry officials; and stakeholder input."

A letter report issued by the Government Accountability Office with an abstract that begins "In October 2008, Congress passed the Prioritizing Resources and Organization for Intellectual Property Act of 2008 (PRO-IP Act), to improve the effectiveness of U.S. government efforts to protect intellectual property (IP) rights such as copyrights, patents, and trademarks. The act also directed GAO to provide information on the quantification of the impacts of counterfeit and pirated goods. GAO (1) examined existing research on the effects of counterfeiting and piracy on consumers, industries, government, and the U.S. economy; and (2) identified insights gained from efforts to quantify the effects of counterfeiting and piracy on the U.S. economy. GAO interviewed officials and subject matter experts from U.S. government agencies, industry associations, nongovernmental organizations, and academic institutions, and reviewed literature and studies quantifying or discussing the economic impacts of counterfeiting and piracy on the U.S. economy, industry, government, and consumers. GAO is making no recommendations in this report."

A letter report issued by the Government Accountability Office with an abstract that begins "The Departments of Defense (DOD) and State and the U.S. Agency for International Development (USAID) have relied extensively on contractors in Iraq and Afghanistan, including using contractors to help administer other contracts or grants. Relying on contractors to perform such functions can provide benefits but also introduces potential risks, such as conflicts of interest, that should be considered and managed. Pursuant to the National Defense Authorization Act for Fiscal Year 2008, GAO reviewed (1) the extent to which DOD, State, and USAID rely on contractors to perform contract and grant administration in Iraq and Afghanistan; (2) the reasons behind decisions to use such contractors and whether the decisions are guided by strategic workforce planning; and (3) whether agencies considered and mitigated related risks. GAO analyzed relevant federal and agency policies and agency contract data, and conducted file reviews and interviews for 32 contracts selected for case studies."

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This report provides background on regulatory requirements, controversies and legal challenges to mountaintop mining, and recent Administration actions. Congressional interest in these issues also is discussed, including legislation in the 111th Congress seeking to restrict the practice of mountaintop mining and other legislation intended to block the Obama Administration’s regulatory actions.

We demonstrate a nonlinear crystal-based short pulse recirculation cavity for trapping the second harmonic of an incident high power laser pulse. This scheme aims to increase the efficiency and flux of Compton-scattering based light sources. We demonstrate up to 36x average power enhancement of frequency doubled sub-millijoule picosecond pulses, and 17x average power enhancement of 177 mJ, 10 ps, 10 Hz pulses.

A significant barrier to investing in renewable energy and comprehensive energy efficiency improvements to homes across the country is the initial capital cost. Property Assessed Clean Energy (PACE) financing is one of several new financial models broadening access to clean energy by addressing this upfront cost issue. Recently, the White House cited PACE programs as an important element of its 'Recovery through Retrofit' plan. The residential PACE model involves the creation of a special clean energy financing district that homeowners elect to opt into. Once opted in, the local government (usually at the city or county level) finances the upfront investment of the renewable energy installation and/or energy efficiency improvements. A special lien is attached to the property and the assessment is paid back as a line item on the property tax bill. As of April 2010, 17 states have passed legislation to allow their local governments to create PACE programs, two already have the authority to set up PACE programs, and over 10 additional states are actively developing enabling legislation. This policy brief analyzes one of the advantages of PACE, which is the transferability of the special assessment from one homeowner to the next when the home is sold. …

Algebraic multigrid (AMG) is a popular solver for large-scale scientific computing and an essential component of many simulation codes. AMG has shown to be extremely efficient on distributed-memory architectures. However, when executed on modern multicore architectures, we face new challenges that can significantly deteriorate AMG's performance. We examine its performance and scalability on three disparate multicore architectures: a cluster with four AMD Opteron Quad-core processors per node (Hera), a Cray XT5 with two AMD Opteron Hex-core processors per node (Jaguar), and an IBM BlueGene/P system with a single Quad-core processor (Intrepid). We discuss our experiences on these platforms and present results using both an MPI-only and a hybrid MPI/OpenMP model. We also discuss a set of techniques that helped to overcome the associated problems, including thread and process pinning and correct memory associations.

Photograph of Wayne Nash and Samuel H. Browning dated April 12, 2010.

Photograph of Patrick Cowan and Elaine Dated April 12, 2010. Photo is a 5" X 7" color photo.

Photograph of James and Tasha Blair dated April 12, 2010.

Photograph of Wayne Nash and James and Tasha Blair dated April 12, 2010.

Photograph of Wayne Nash and Kenneth Wayne Young being awarded the Oklahoma Society Award dated April 12, 2010.

Photograph of Wayne Nash and Kenneth Wayne Young dated April 12, 2010.

Photograph of Wayne Nash, Patrick Cowan, and Elaine dated April 12, 2010.

Many scientific applications need support from a communication infrastructure that provides predictable performance, which requires effective algorithms for bandwidth reservations. Network reservation systems such as ESnet's OSCARS, establish guaranteed bandwidth of secure virtual circuits for a certain bandwidth and length of time. However, users currently cannot inquire about bandwidth availability, nor have alternative suggestions when reservation requests fail. In general, the number of reservation options is exponential with the number of nodes n, and current reservation commitments. We present a novel approach for path finding in time-dependent networks taking advantage of user-provided parameters of total volume and time constraints, which produces options for earliest completion and shortest duration. The theoretical complexity is only O(n2r2) in the worst-case, where r is the number of reservations in the desired time interval. We have implemented our algorithm and developed efficient methodologies for incorporation into network reservation frameworks. Performance measurements confirm the theoretical predictions.

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Student newspaper from St. Mary's University in San Antonio, Texas that includes campus news along with advertising.

This report discusses climate change and issues related to carbon leakage by examining the European Union's (EU's) cap-and-trade program with a review and analysis of various EU efforts to address the concerns of energy-intensive, trade-exposed industries. Additionally, it considers similar provisions enacted or proposed by the U.S.and analyzes potential World Trade Organization (WTO) implications in relation to U.S. trade agreements.

This report presents an overview of the economic and political situation in Bosnia. It starts out by describing the current situation, the negotiations on forming a new central government, the international role in Bosnia, and the last part discusses the implications of U.S. policy.

This report provides background information on global climate change negotiations. The report discuses the United Nations framework for convention for climate change, the Kyoto protocol, and the Copenhagen accord.

This report provides a brief history and overview of the U.S. federal financial services regulatory structure and examines the regulatory structural changes the three major federal government proposals would make to remedy the causes of the financial crisis. It concludes with a discussion of some possible implications of reform.

This report addresses foreign aid reform through early 2010. Several development proponents, nongovernmental organizations (NGOs), and policymakers have pressed Congress to reform U.S. foreign aid capabilities to better address 21st century development needs and national security challenges.