Report that describes the Keystone XL pipeline proposal and the process required for federal approval. It summarizes key arguments for and against the pipeline put forth by the pipeline's developers, federal agencies, environmental groups, and other stakeholders.

A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Justice (DOJ) administered 13 grant programs from fiscal years 2005 through 2010 that recipients could use to support indigent defense, 4 of which required recipients to use all or part of the funding for this purpose. DOJ also provides training to indigent defense providers, among other things."

A letter report issued by the Government Accountability Office with an abstract that begins "The Centers for Medicare and Medicaid Services (CMS), within the Department of Health and Human Services (HHS), implemented the durable medical equipment (DME) competitive bidding program’s (CBP) bidding process for the round 1 rebid. Nearly the same number of suppliers submitted a similar number of bids for both the CBP round 1 rebid and round 1. Many suppliers continued to have difficulty complying with financial documentation requirements; however, the number of bids disqualified in the round 1 rebid was significantly less than for round 1. After being notified of their bid results, some suppliers were found to have bids that were disqualified incorrectly and were subsequently offered round 1 rebid contracts. About one-third of the bidding suppliers were awarded CBP contracts."

A letter report issued by the Government Accountability Office with an abstract that begins "Less than 0.1 percent of payments Medicare made in 2011 were for amounts of services that exceeded certain unpublished limits for excess billing and where the claims did not include information from the providers to indicate why the additional services were medically necessary. These limits are set by the Centers for Medicare & Medicaid Services (CMS)--an agency within the Department of Health and Human Services (HHS)--as a means to avoid potentially improper payments. To implement these limits, CMS established automated controls in its payment systems called Medically Unlikely Edits (MUE). These MUEs compare the number of certain services billed against limits for the amount of services likely to be provided under normal medical practice to a beneficiary by the same provider on the same day--for example, no more than one of the same operation on each eye. GAO analysis of 2011 claims data found approximately $14 million out of a total of $23.9 billion in Medicare payments for services that exceeded unpublished MUE limits and where the claims did not include information from the providers to indicate why the additional services were medically necessary. As GAO …

A letter report issued by the Government Accountability Office with an abstract that begins "The United States provided an estimated $13.9 billion for foreign police assistance during fiscal years 2009 through 2011. Funds provided by U.S. agencies rose and then fell between fiscal years 2009 and 2011. During fiscal years 2009 through 2011, the United States provided the greatest amount of its foreign police assistance to Afghanistan, Iraq, Pakistan, Colombia, Mexico, and the Palestinian Territories. Department of Defense (DOD) and State (State) funds constituted about 97 percent of U.S. funds for police assistance in fiscal year 2009 and 98 percent in fiscal years 2010 and 2011."

This report describes key U.S. counternarcotics programs in Afghanistan in the context of the 2014 transition and analyzes policy issues related to these programs for Congress to consider as policy makers examine the drug problem in Afghanistan.

This report discusses the creation of federal holidays, how holidays affect employee pay, and recent holiday legislation.

This report provides a brief overview of the existing statutory authority and implementing regulation, as well as a description of several policy issues raised in previous debates regarding chemical facility security. It also identifies policy options for congressional consideration.

This report examines formal interagency collaborative arrangements and activities, which are intended to enhance joint efforts and cooperation among independent federal agencies with shared responsibilities and overlapping jurisdictions.

This report discusses several issues relating to homelessness among veterans, which has become more prominent since the beginning of the conflicts in Iraq and Afghanistan.

This report discusses the current political state of Afghanistan, focusing particularly on the influence of the Taliban and other militant groups and on the leadership of Afghan President Hamid Karzai. This report also discusses the U.S.-Afghanistan relationship, in both the short and long term, and U.S. efforts under the Obama Administration to provide military, reconstructive, and stabilization aid.

This report contains sections on recent developments related to oil and gas wells in the National Wildlife Refuge System (NWRS) and related issues for Congress. The report presents information on the number and location of oil and gas wells, compatibility of oil and gas activities with NWRS purposes, and regulatory mechanisms for the administration of oil and gas activities.

This report discusses disposal of nuclear waste, primarily highly radioactive spent fuel from nuclear power plants. Presidential and Congressional actions regarding nuclear waste disposal sites and the Yucca Mountain Project, other alternatives previously proposed by the Obama Administration, and temporary solutions are discussed.

This report analyzes the Trump Administration's decision to pullout from the Joint Comprehensive Plan of Action (JCPOA) and its potential implications. The other powers that negotiated the accord with Iran--Russia, China, France, Britain, and Germany--have consistently asserted that the JCPOA is succeeding in its core objectives and that its implementation should not be jeopardized.

This report provides information about the Authoritative Reports and Resources, by Topic on Cybersecurity. This report provides references to analytical reports on cybersecurity from CRS other government agencies etc.

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The Endangered Species Act has been one of the more contentious environmental laws. This may stem from its strict substantive provisions, which can affect the use of both federal and nonfederal lands and resources. This report discusses oversight issues and legislation introduced in the 112th Congress to address Endangered Species Act implementation and management of endangered and threatened species.

Project Objective: The overarching objective of the Montana Palladium Research Initiative is to perform scientific research on the properties and uses of palladium in the context of the U.S. Department of Energy'™s Hydrogen, Fuel Cells and Infrastructure Technologies Program. The purpose of the research will be to explore possible palladium as an alternative to platinum in hydrogen-economy applications. To achieve this objective, the Initiatives activities will focus on several cutting-edge research approaches across a range of disciplines, including metallurgy, biomimetics, instrumentation development, and systems analysis. Background: Platinum-group elements (PGEs) play significant roles in processing hydrogen, an element that shows high potential to address this need in the U.S. and the world for inexpensive, reliable, clean energy. Platinum, however, is a very expensive component of current and planned systems, so less-expensive alternatives that have similar physical properties are being sought. To this end, several tasks have been defined under the rubric of the Montana Palladium Research Iniative. This broad swath of activities will allow progress on several fronts. The membrane-related activities of Task 1 employs state-of-the-art and leading-edge technologies to develop new, ceramic-substrate metallic membranes for the production of high-purity hydrogen, and develop techniques for the production of thin, defect-free platinum …

In this program, we developed new theoretical and experimental insights into understanding the relationships among fundamental universality and scaling phenomena, the solid-state physical and mechanical properties of materials, and the volume plasmon energy as measured by electron energy-loss spectroscopy (EELS). Particular achievements in these areas are summarized as follows: (i) Using a previously proposed physical model based on the universal binding-energy relation (UBER), we established close phenomenological connections regarding the influence of the valence electrons in materials on the longitudinal plasma oscillations (plasmons) and various solid-state properties such as the optical constants (including absorption and dispersion), elastic constants, cohesive energy, etc. (ii) We found that carbon materials, e.g., diamond, graphite, diamond-like carbons, hydrogenated and amorphous carbon films, exhibit strong correlations in density vs. Ep (or maximum of the volume plasmon peak) and density vs. hardness, both from available experimental data and ab initio DFT calculations. This allowed us to derive a three-dimensional relationship between hardness and the plasmon energy, that can be used to determine experimentally both hardness and density of carbon materials based on measurements of the plasmon peak position. (iii) As major experimental accomplishments, we demonstrated the possibility of in-situ monitoring of changes in the physical properties of …

The Junior Investigator grant 'Structure of Rare Isotopes' (DE-FG02-07ER41529) supported research in low-energy nuclear theory from September 1, 2007 to August 31, 2010. It was the main goal of the proposed research to develop and optimize an occupation-number-based energy functional for the computation of nuclear masses, and this aim has been reached. Furthermore, progress was made in linking two and three-body forces from low-momentum interactions to pairing properties in nuclear density functionals, and in the description of deformed nuclei within an effective theory.

This report contains the results of Phase I of an SBIR to develop a Pulsed Inductive Output Tube (IOT) with 140 kW at 400 MHz for powering H-proton beams. A number of sources, including single beam and multiple beam klystrons, can provide this power, but the IOT provides higher efficiency. Efficiencies exceeding 70% are routinely achieved. The gain is typically limited to approximately 24 dB; however, the availability of highly efficient, solid state drivers reduces the significance of this limitation, particularly at lower frequencies. This program initially focused on developing a 402 MHz IOT; however, the DOE requirement for this device was terminated during the program. The SBIR effort was refocused on improving the IOT design codes to more accurately simulate the time dependent behavior of the input cavity, electron gun, output cavity, and collector. Significant improvement was achieved in modeling capability and simulation accuracy.

Diffusion Monte Carlo methods can give highly accurate results for correlated systems, provided that well optimized trial wave functions with accurate nodal surfaces are employed. The Cornell team developed powerful methods for optimizing all the parameters within a multi-determinant Slater-Jastrow form of the wave function. These include the Jastrow parameters within a flexible electron-electron-nucleus form of the Jastrow function, the parameters multiplying the configuration state functions, the orbital parameters and the basis exponents. The method optimizes a linear combination of the energy and the variance of the local energy. The optimal parameters are found iteratively by diagonalizing the Hamiltonian matrix in the space spanned by the wave function and its first-order derivatives, making use of a strong zero-variance principle. It is highly robust, has become the method of choice for correlated wave function optimization and has been adopted by other QMC groups. This optimization method was used on the first-row atoms and homonuclear diatomic molecules, demonstrating that molecular well depths can be obtained with near chemical accuracy quite systematically at the diffusion Monte Carlo level for these systems. In addition the complete ground-state potential energy curve of the C{sub 2} molecule up to the dissociation limit was obtained, and, size …

We present Sigma Web interface which provides user-friendly access for online analysis and plotting of the evaluated and experimental nuclear reaction data stored in the ENDF-6 and EXFOR formats. The interface includes advanced browsing and search capabilities, interactive plots of cross sections, angular distributions and spectra, nubars, comparisons between evaluated and experimental data, computations for cross section data sets, pre-calculated integral quantities, neutron cross section uncertainties plots and visualization of covariance matrices. Sigma is publicly available at the National Nuclear Data Center website at http://www.nndc.bnl.gov/sigma.

This report examines aviation, transit and passenger rail security, as well as port and maritime security. The difficulty and cost of protecting the transportation sector from attack raises a core question for policymakers, i.e., how much effort and resources to put toward protecting potential targets versus pursuing and fighting terrorists.