We calculate the single transverse-spin asymmetry for open charm production in pp collisions within the QCD collinear factorization approach. We include contributions from both twist-three quark-gluon and tri-gluon correlation functions. We find that the quark-gluon correlation functions alone generate only a very small asymmetry for open charm production in the kinematic region of current interest at RHIC, so that the observation of any significant single-spin asymmetry would be a clear indication of the presence of tri-gluon correlations inside a polarized proton. We furthermore demonstrate that the tri-gluon contribution could be very different for the production of D and \bar{D} mesons. These features make the single spin asymmetry in open charm production in polarized pp collisions at RHIC an excellent probe of tri-gluon correlation functions.

Under the auspices of this funding, we have developed a program to synthesize and characterize highly monodispersed magnetic nanoparticles. We have been particularly interested in the origin of the exchange bias effect, which occurs in compound nanoparticles with a ferromagnetic core and an antiferromagnetic shell, and have mostly focused on Co/CoO core-shell nanoparticles. The exchange bias effect involves exchange coupling between the core moment and the antiferromagnetic shell which stabilizes the core moment, which would otherwise be quickly reorienting in ferromagnetic particles of this size.

The fracture toughness properties of Type 21-6-9 stainless steel were measured for forgings in the unexposed, hydrogen-exposed, and tritium-exposed-and-aged conditions. Fracture toughness samples were cut from conventionally-forged and high-energy-rate-forged forward-extruded cylinders and mechanically tested at room temperature using ASTM fracture-toughness testing procedures. Some of the samples were exposed to either hydrogen or tritium gas (340 MPa, 623 K) prior to testing. Tritium-exposed samples were aged for up to seven years and tested periodically in order to measure the effect on fracture toughness of {sup 3}He from radioactive tritium decay. The results show that hydrogen-exposed and tritium-exposed samples had lower fracture- toughness values than unexposed samples and that fracture toughness decreased with increasing decay {sup 3}He content. Forged steels were more resistant to the embrittling effects of tritium and decay {sup 3}He than annealed steels, although their fracture-toughness properties depended on the degree of sensitization that occurred during processing. The fracture process was dominated by microvoid nucleation, growth and coalescence; however, the size and spacing of microvoids on the fracture surfaces were affected by hydrogen and tritium with the lowest-toughness samples having the smallest microvoids and finest spacing.

The 100-F-26:8 waste site consisted of the underground pipelines that conveyed sanitary waste water from the 1701-F Gatehouse, 1709-F Fire Station, and the 1720-F Administrative Office to the 1607-F1 septic tank. The site has been remediated and presently exists as an open excavation. In accordance with this evaluation, the verification sampling results support a reclassification of this site to Interim Closed Out. The results of verification sampling demonstrated that residual contaminant concentrations do not preclude any future uses and allow for unrestricted use of shallow zone soils. The results also showed that residual contaminant concentrations are protective of groundwater and the Columbia River.

Petascale systems will present several new challenges to performance and correctness tools. Such machines may contain millions of cores, requiring that tools use scalable data structures and analysis algorithms to collect and to process application data. In addition, at such scales, each tool itself will become a large parallel application--already, debugging the full Blue-Gene/L (BG/L) installation at the Lawrence Livermore National Laboratory requires employing 1664 tool daemons. To reach such sizes and beyond, tools must use a scalable communication infrastructure and manage their own tool processes efficiently. Some system resources, such as the file system, may also become tool bottlenecks. In this paper, we present challenges to petascale tool development, using the Stack Trace Analysis Tool (STAT) as a case study. STAT is a lightweight tool that gathers and merges stack traces from a parallel application to identify process equivalence classes. We use results gathered at thousands of tasks on an Infiniband cluster and results up to 208K processes on BG/L to identify current scalability issues as well as challenges that will be faced at the petascale. We then present implemented solutions to these challenges and show the resulting performance improvements. We also discuss future plans to meet the debugging …

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This report provides an overview of the forms and requirements needed in voting in the Senate.

This report discusses federal authority over water, and federal “reserved” and non-reserved water rights. It discusses water rights under the Wild and Scenic Rivers Act and water rights provisions within specific designations.

This report discusses Endangered Species Act (ESA) that has long been one of the major flash points in the “property rights” debate. This report first outlines the ESA provisions most relevant to the act's impacts on private property, then surveys the major ESA-relevant principles of Fifth Amendment takings law, and finally discusses the court decisions adjudicating whether government measures based on the ESA effect a taking of property under the Fifth Amendment.

This report provides summary information on emergency supplemental appropriations enacted after major disasters since 1989. The report discusses the most recent and costly disasters occurred in the summer of 2005 when Hurricanes Katrina, Rita, and Wilma made landfall in Gulf Coast states.

This report discusses the food and agricultural imports, federal oversight responsibilities, international trade considerations, and legislative proposals. The report includes list of tables with leading suppliers of U.S. agriculture and seafood imports, and imported meat and poultry products presented for inspection.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Greg Abbott, regarding a legal question submitted for clarification: Whether, under Tax Code section 6.035 or 6.05(g), the Liberty County Central Appraisal District Board of Directors may contract with an appraisal company that employs the son of the District’s chief appraiser (RQ-0650-GA)

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Greg Abbott, regarding a legal question submitted for clarification: Whether a county may terminate an equipment lease by acquiring the equipment and selling it without competitively bidding the sale (RQ-0651-GA)

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Greg Abbott, regarding a legal question submitted for clarification; Whether a county commissioner may be paid while working for the county sheriff in jail division (RQ-0661-GA)

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Greg Abbott, regarding a legal question submitted for clarification; Meaning of the term "previously captured" for purposes of section 42.092 of the Penal Code, which prohibits cruelty to nonlivestock animals (RQ-0666-GA)

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Greg Abbott, regarding a legal question submitted for clarification: Validity of collecting a Regional Transportation Authority’s sales and use tax at different levels in separate subregions (RQ-0677-GA)

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Greg Abbott, regarding a legal question submitted for clarification: Whether the holder of a rehabilitation permit from the Parks and Wildlife Department is exempt from the application of section 822/102(a)(5) of the Health and Safety Code with regard to dangerous wild animals not covered by the permit (RQ-0679-GA)

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This report reviews the process and procedures that currently apply to congressional consideration of foreign arms sales proposed by the President.

This report provides information about the Congressional Liaison Offices of Selected Federal Agencies. This list of about 150 congressional Liaison is intended to help congressional offices in placing telephone calls and addressing correspondence to government agencies.

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This report discusses the windfall elimination provision (WEP), which reduces the Social Security benefits of workers who also have pension benefits from employment not covered by Social Security. Its purpose is to remove an advantage these workers would otherwise receive because of Social Security’s benefit formula that favors workers with smaller amounts of Social Security-covered career earnings. Opponents contend that the provision is basically imprecise and often unfair.