Correspondence issued by the Government Accountability Office with an abstract that begins "Since October 1994, the U.S. Export-Import Bank (Ex-Im) has had statutory authority to provide loans, guarantees, and insurance to help finance U.S. exports of dual-use (military and civilian) defense articles and services, provided that it determines these items are nonlethal and meant primarily for civilian use. These dual-use exports include such items as vehicles that are used by the military for civilian or humanitarian purposes. The legislation also requires us to report annually on the end uses of the dual-use exports financed by Ex-Im during the second preceding fiscal year--which, for the purposes of this letter, corresponds to 2005. Since we last issued a letter in 2001 reporting on Ex-Im financed dual-use exports, the enclosure to this letter provides detailed information regarding the dual-use exports financed during fiscal years 2002 through 2004."

A letter report issued by the Government Accountability Office with an abstract that begins "Goods imported into the United States under trade preference programs, which extend unilateral tariff reductions to over 130 developing countries to assist their economies, totaled approximately $92 billion in 2006. The United States offers four primary trade preference programs--the Generalized System of Preferences (GSP), the Caribbean Basin Initiative (CBI), the Andean Trade Preference Act (ATPA), and the African Growth and Opportunity Act (AGOA). Some economists and others have raised concerns about the programs; for example, because the beneficiaries may lose interest in reciprocal multilateral or bilateral trade liberalization. In addition, the global trade context in which the programs operate is changing. Most U.S. trade preference programs will need to be renewed over the next several years. As a result, Congress needs to reexamine the programs and explore options for improvement. To provide information for such a reexamination, at your request we (1) identified and compared key features of U.S. preference programs, (2) analyzed use of U.S. preference programs by beneficiaries, and (3) examined U.S. agency administrative reviews of preference programs."

Testimony issued by the Government Accountability Office with an abstract that begins "The Subcommittee on Health of the Committee on Veterans' Affairs asked GAO to discuss its recent work on the Department of Veterans Affairs' (VA) Homeless Providers Grant and Per Diem (GPD) program. GAO reported on this subject in September 2006, focusing on (1) VA's estimates of the number of homeless veterans and transitional housing beds, (2) the extent of collaboration involved in the provision of GPD and related services, and (3) VA's assessment of program performance."

Testimony issued by the Government Accountability Office with an abstract that begins "The possibility that terrorists and criminals might exploit border vulnerabilities and enter the United States poses a serious security risk, especially if they were to bring radioactive material or other contraband with them. Although Customs and Border Protection (CBP) has taken steps to secure the 170 ports of entry on the northern and southern U.S. borders, Congress is concerned that unmanned and unmonitored areas between these ports of entry may be vulnerable. In unmanned locations, CBP relies on surveillance cameras, unmanned aerial drones, and other technology to monitor for illegal border activity. In unmonitored locations, CBP does not have this equipment in place and must rely on alert citizens or other information sources to meet its obligation to protect the border. Today's testimony will address what GAO investigators found during a limited security assessment of seven border areas that were unmanned, unmonitored, or both--four at the U.S.-Canada border and three at the U.S.-Mexico border. In three of the four locations on the U.S.-Canada border, investigators carried a duffel bag across the border to simulate the cross-border movement of radioactive materials or other contraband. Safety considerations prevented GAO investigators …

Testimony issued by the Government Accountability Office with an abstract that begins "In general, a fusion center is a collaborative effort to detect, prevent, investigate, and respond to criminal and terrorist activity. Recognizing that fusion centers are a mechanism for information sharing, the federal government--including the Program Manager for the Information Sharing Environment (PM-ISE), who has primary responsibility for governmentwide information sharing, the Department of Homeland Security (DHS), and the Department of Justice (DOJ)--is taking steps to partner with fusion centers. This testimony is based on GAO's draft report on state and local fusion centers. It addresses (1) the status and characteristics of the centers and (2) to what extent federal efforts help alleviate challenges fusion centers identified. In conducting this work GAO reviewed center-related documents and conducted interviews with officials from DHS, DOJ, and the PM-ISE, and semistructured interviews with 58 state and local fusion centers."

A letter report issued by the Government Accountability Office with an abstract that begins "The 64-million-acre Prairie Pothole Region in the north-central United States provides breeding grounds for over 60 percent of key migratory bird species in the United States. During much of the 20th century, the draining of wetlands and the conversion of prairie to cropland has reduced bird habitat. Under the Small Wetlands Acquisition Program, the Department of the Interior's U.S. Fish and Wildlife Service (the Service) aims to sustain remaining migratory bird populations by permanently protecting high-priority habitat. Some habitat is temporarily protected under the Department of Agriculture's Conservation Reserve Program. In this context, GAO examined (1) the status of the Service's acquisition program in the region, (2) the Service's habitat protection goals for the region, and (3) challenges to achieving these goals. To answer these objectives, GAO examined Service land acquisition data and projected rates of habitat loss."

In 2003, the U.S. Department of Energy issued the Eastern Nevada Landscape Coalition (ENLC) funding to implement ecological restoration in Gleason Creek and Smith Valley Watersheds. This project was made possible by congressionally directed funding that was provided through the US Department of Energy, Energy Efficiency and Renewable Energy, Office of the Biomass Program. The Ely District Bureau of Land Management (Ely BLM) manages these watersheds and considers them priority areas within the Ely BLM district. These three entities collaborated to address the issues and concerns of Gleason Creek and Smith Valley and prepared a restoration plan to improve the watersheds’ ecological health and resiliency. The restoration process began with watershed-scale vegetation assessments and state and transition models to focus on restoration sites. Design and implementation of restoration treatments ensued and were completed in January 2007. This report describes the restoration process ENLC undertook from planning to implementation of two watersheds in semi-arid Eastern Nevada.

The National Ignition Facility (NIF) is a 192-beam Nd:glass laser facility being constructed at the Lawrence Livermore National Laboratory (LLNL) to conduct research in inertial confinement fusion (ICF) and high energy density (HED) science. When completed, NIF will produce 1.8 MJ, 500 TW of ultraviolet light, making it the world's largest and highest-energy laser system. The NIF is poised to become the world's preeminent facility for conducting ICF and fusion energy research and for studying matter at extreme densities and temperatures.

We have developed a new target platform to study Laser Plasma Interaction in ignition-relevant condition at the Omega laser facility (LLE/Rochester)[1]. By shooting an interaction beam along the axis of a gas-filled hohlraum heated by up to 17 kJ of heater beam energy, we were able to create a millimeter-scale underdense uniform plasma at electron temperatures above 3 keV. Extensive Thomson scattering measurements allowed us to benchmark our hydrodynamic simulations performed with HYDRA [1]. As a result of this effort, we can use with much confidence these simulations as input parameters for our LPI simulation code pF3d [2]. In this paper, we show that by using accurate hydrodynamic profiles and full three-dimensional simulations including a realistic modeling of the laser intensity pattern generated by various smoothing options, fluid LPI theory reproduces the SBS thresholds and absolute reflectivity values and the absence of measurable SRS. This good agreement was made possible by the recent increase in computing power routinely available for such simulations.

Fast ignition research has reached the stage where point designs are becoming crucial to the identification of key issues and the development of projects to demonstrate high gain fast ignition. The status of point designs for cone coupled electron fast ignition and some of the issues they highlight are discussed.

Nature uses enzymes to activate otherwise unreactive compounds in remarkable ways. For example, DNases are capable of hydrolyzing phosphate diester bonds in DNA within seconds,[1-3]--a reaction with an estimated half-life of 200 million years without an enzyme.[4] The fundamental features of enzyme catalysis have been much discussed over the last sixty years in an effort to explain the dramatic rate increases and high selectivities of enzymes. As early as 1946, Linus Pauling suggested that enzymes must preferentially recognize and stabilize the transition state over the ground state of a substrate.[5] Despite the intense study of enzymatic selectivity and ability to catalyze chemical reactions, the entire nature of enzyme-based catalysis is still poorly understood. For example, Houk and co-workers recently reported a survey of binding affinities in a wide variety of enzyme-ligand, enzyme-transition-state, and synthetic host-guest complexes and found that the average binding affinities were insufficient to generate many of the rate accelerations observed in biological systems.[6] Therefore, transition-state stabilization cannot be the sole contributor to the high reactivity and selectivity of enzymes, but rather, other forces must contribute to the activation of substrate molecules. Inspired by the efficiency and selectivity of Nature, synthetic chemists have admired the ability of enzymes …

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The purpose of this report is to document the status of revegetation projects and natural resources mitigation efforts that have been conducted for remediated waste sites and other activities associated with the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) cleanup of National Priorities List waste sites at Hanford. This report documents the results of revegetation and mitigation monitoring conducted in 2007 and includes 11 revegetation/restoration projects, one revegetation/mitigation project, and 3 bat habitat mitigation projects.

The authors goal is to solve the ODE: dy/dt = f(t,y(t)) where we are to advance the independent variables y by marching forward in time t using a step size h. Here time levels are denoted by subscripts. The 'modified Euler' method (e.g., [1,2]) uses a forward-Euler step as a predictor to yield a provisional estimate {tilde y}{sub i+1} of the dependent variables at the advanced time level: {tilde y}{sub i+1} = y{sub i} + hf(t{sub i},y{sub i}).

In the paper entitled 'The shape and composition of interstellar silicate grains' (A & A, 462, 667-676 (2007)), Min et al. explore non-spherical grain shape and composition in modeling the interstellar 10 and 20 {micro}m extinction features. This progression towards more realistic models is vitally important to enabling valid comparisons between dust observations and laboratory measurements. Min et al. proceed to compare their model results with GEMS (glass with embedded metals and sulfides) from IDPs (interplanetary dust particles) and to discuss the nature and origin of GEMS. Specifically, they evaluate the hypothesis of Bradley (1994) that GEMS are interstellar (IS) amorphous silicates. From a comparison of the mineralogy, chemical compositions, and infrared (IR) spectral properties of GEMS with their modeling results, Min et al. conclude: 'GEMS are, in general, not unprocessed leftovers from the diffuse ISM'. This conclusion is based, however, on erroneous and incomplete GEMS data. It is important to clarify first that Bradley (1994) never proposed that GEMS are unprocessed leftovers from the diffuse ISM, nor did he suggest that individual subnanogram mass GEMS are a representative sampling of the enormous mass of silicates in the diffuse ISM. Bradley (1994) simply showed that GEMS properties are consistent with …

This document describes the U.S. Department of Energy’s (DOE) Hanford Site environment. It is intended to provide a consistent description of the Hanford Site for the many environmental documents being prepared by DOE contractors concerning the National Environmental Policy Act (NEPA). No statements regarding significance or environmental consequences are provided. This year’s report is the eighteen revision of the original document published in 1988 and is (until replaced by the nineteenth revision) the only version that is relevant for use in the preparation of Hanford NEPA, State Environmental Policy Act (SEPA), and Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) documents. Two chapters are included in this document (Chapters 4 and 6), numbered to correspond to chapters typically presented in environmental impact statements (EISs) and other Hanford Site NEPA or CERCLA documentation. Chapter 4.0 (Affected Environment) describes Hanford Site climate and meteorology; air quality; geology; hydrology; ecology; cultural, archaeological, and historical resources; socioeconomics; noise; and occupational health and safety. Sources for extensive tabular data related to these topics are provided in the chapter. When possible, subjects are divided into a general description of the characteristics of the Hanford Site, followed by site-specific information, where available, for the 100, 200, 300 …

Free weekly newspaper that includes business and classified advertising.

Free weekly newspaper that includes business and classified advertising.

Daily student newspaper from the University of North Texas in Denton, Texas that includes local, state and campus news along with advertising.

Weekly Jewish newspaper from Fort Worth, Texas that includes local, state and national news along with extensive advertising.

Semi-weekly newspaper from Bastrop, Texas that includes local, state and national news along with advertising.

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Weekly newspaper from Port Aransas, Texas on Mustang Island that includes local, state and national news along with extensive advertising.