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Highway Public-Private Partnerships: More Rigorous Up-front Analysis Could Better Secure Potential Benefits and Protect the Public Interest

Description: A letter report issued by the Government Accountability Office with an abstract that begins "The United States is at a critical juncture in addressing the demands on its transportation system, including highway infrastructure. State and local governments are looking for alternatives, including increased private sector participation. GAO was asked to review (1) the benefits, costs, and trade-offs of public-private partnerships; (2) how public officials have identified and acted to protect the pu… more
Date: February 8, 2008
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
open access

VA Health Care: Mild Traumatic Brain Injury Screening and Evaluation Implemented for OEF/OIF Veterans, but Challenges Remain

Description: A letter report issued by the Government Accountability Office with an abstract that begins "Traumatic brain injury (TBI) has emerged as a leading injury among servicemembers serving in the Operation Enduring Freedom (OEF) and Operation Iraqi Freedom (OIF) combat theaters. The widespread use of improvised explosive devices, such as roadside bombs, in these combat theaters increases the likelihood that servicemembers will be exposed to incidents that can cause a TBI. TBIs can vary from mild to s… more
Date: February 8, 2008
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
open access

Developing the Physics Basis of Fast Ignition Experiments at Future Large Fusion-class lasers

Description: The Fast Ignition (FI) concept for Inertial Confinement Fusion (ICF) has the potential to provide a significant advance in the technical attractiveness of Inertial Fusion Energy (IFE) reactors. FI differs from conventional 'central hot spot' (CHS) target ignition by using one driver (laser, heavy ion beam or Z-pinch) to create a dense fuel and a separate ultra-short, ultra-intense laser beam to ignite the dense core. FI targets can burn with {approx} 3X lower density fuel than CHS targets, resu… more
Date: February 8, 2008
Creator: MacKinnon, A. J.; Key, M. H.; Hatchett, S.; MacPhee, A. G.; Foord, M.; Tabak, M. et al.
Partner: UNT Libraries Government Documents Department
open access

Linear Scaling Electronic Structure Methods with Periodic Boundary Conditions

Description: The methodological development and computational implementation of linear scaling quantum chemistry methods for the accurate calculation of electronic structure and properties of periodic systems (solids, surfaces, and polymers) and their application to chemical problems of DOE relevance.
Date: February 8, 2008
Creator: Scuseria, Gustavo E.
Partner: UNT Libraries Government Documents Department
open access

Decomposition of Large Scale Semantic Graphsvia an Efficient Communities Algorithm

Description: Semantic graphs have become key components in analyzing complex systems such as the Internet, or biological and social networks. These types of graphs generally consist of sparsely connected clusters or 'communities' whose nodes are more densely connected to each other than to other nodes in the graph. The identification of these communities is invaluable in facilitating the visualization, understanding, and analysis of large graphs by producing subgraphs of related data whose interrelationship… more
Date: February 8, 2008
Creator: Yao, Y
Partner: UNT Libraries Government Documents Department
open access

Pressure Induced Bonding Changes in Carbon Dioxide: Six Fold Coordinated CO2

Description: In this LDRD, we examined in detail the pressure-induced bonding and local coordination changes leading to the molecular {yields} associated {yields} extended-solid transitions in carbon dioxide (CO{sub 2}). We studied the progressive delocalization of electrons from the C=O molecular double bond at high pressures and temperatures, and determined the phase stability and physical properties of a new extended-solid CO{sub 2} phase (VI). We find that the new CO{sub 2} phase VI is based on a networ… more
Date: February 8, 2008
Creator: Iota, V.; Jenei, Z.; Klepeis, J. P.; Evans, W. J. & Yoo, C.
Partner: UNT Libraries Government Documents Department
open access

Hydrodynamic, Atomic Kinetic, and Monte Carlo Radiation Transfer Models of the X-ray Spectra of Compact Binaries

Description: We describe the results of an effort, funded by the Lawrence Livermore National Laboratory Directed Research and Development Program, to model, using FLASH time-dependent adaptive-mesh hydrodynamic simulations, XSTAR photoionization calculations, HULLAC atomic data, and Monte Carlo radiation transport, the radiatively-driven photoionized wind and accretion flow of high-mass X-ray binaries (HMXBs). In this final report, we describe the purpose, approach, and technical accomplishments of this eff… more
Date: February 8, 2008
Creator: Mauche, C W; Liedahl, D A; Akiyama, S & Plewa, T
Partner: UNT Libraries Government Documents Department
open access

Energy Efficiency and Renewable Energy Legislation in the 110th Congress

Description: This report reviews the status of energy efficiency and renewable energy legislation introduced during the 110th Congress. Most action in the second session has focused on provisions in the economic stimulus bill and the Farm Bill. Most action in the first session focused on the Energy Independence and Security Act of 2007. Additional action was focused on funding-related bills for energy efficiency and renewable energy, especially H.R. 2641, the Energy and Water Appropriations bill for FY 2008… more
Date: February 8, 2008
Creator: Sissine, Fred; Cunningham, Lynn J. & Gurevitz, Mark
Partner: UNT Libraries Government Documents Department
open access

Housing Issues in the 110th Congress

Description: No Description Available.
Date: February 8, 2008
Creator: Perl, Libby; McCarty, Maggie; Foote, Bruce E.; Boyd, Eugene; Getter, Darryl E.; Jackson, Pamela J. et al.
Partner: UNT Libraries Government Documents Department
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