A letter report issued by the Government Accountability Office with an abstract that begins "In 1996, the United Nations (UN) Security Council and Iraq began the Oil for Food program to address Iraq's humanitarian situation after sanctions were imposed in 1990. More than $67 billion in oil revenue was obtained through the program, with $31 billion in humanitarian assistance delivered to Iraq. The 2005 Defense Authorization Act mandated that GAO review the Oil for Food program. GAO reviewed how the UN adhered to five key internal control standards in its stewardship of the program. GAO assessed (1) the program's control environment and (2) key elements of the other internal control standards. GAO also reported on the UN Compensation Commission's progress in paying reparations from Iraq's invasion of Kuwait."

Testimony issued by the Government Accountability Office with an abstract that begins "The United States, along with coalition partners and various international organizations, has undertaken a challenging and costly effort to stabilize and rebuild Iraq following multiple wars and decades of neglect by the former regime. This enormous effort is taking place in an unstable security environment, concurrent with Iraqi efforts to transition to its first permanent government. In November 2005, the President issued the National Strategy for Victory in Iraq. According to the strategy, victory will be achieved when Iraq is peaceful, united, stable, secure, well integrated into the international community, and a full partner in the global war on terror. In this testimony, GAO discusses the key challenges that the United States, international community, and Iraq face in rebuilding and stabilizing Iraq. This statement is based on four reports GAO has issued to the Congress since July 2005 and recent trips to Iraq. Since July 2005, GAO issued reports on (1) the status of funding and reconstruction efforts in Iraq, the progress achieved, and challenges faced in rebuilding Iraq's infrastructure; (2) U.S. efforts in the water and sanitation sector; and (3) U.S. assistance for the January 2005 Iraqi …

A letter report issued by the Government Accountability Office with an abstract that begins "For more than a decade, experts have called on the United Nations (UN) Secretariat to correct serious deficiencies in its procurement process. Recent evidence of corruption and mismanagement in procurement suggests that millions of dollars contributed to the UN by the United States and other member states are at risk of fraud, waste and abuse. During the last decade, UN procurement has more than tripled to more than $1.6 billion in 2005, largely due to expanding UN peacekeeping operations. More than a third of that amount is procured by UN peacekeeping field missions. To review the UN's internal controls over procurement, GAO assessed key control elements, including (1) the overall control environment and (2) specific control activities aimed at providing reasonable assurance that staff are complying with directives."

A letter report issued by the Government Accountability Office with an abstract that begins "With contributions to United Nations (UN) organizations totaling more than $1.6 billion in 2006-2007, the United States has advocated strong UN oversight. In 1994, the United States provided support to establish the Office of Internal Oversight Services (OIOS). The findings of the Independent Inquiry Committee (IIC) into the Oil for Food Program have renewed concerns about UN oversight, and the 2005 World Summit proposed actions to improve OIOS. We were asked to examine (1) the extent to which UN funding arrangements for OIOS ensure independent oversight, and (2) the consistency of OIOS practices with key international auditing standards."

A letter report issued by the Government Accountability Office with an abstract that begins "To reduce greenhouse gas emissions linked to climate change, two voluntary programs encourage participants to set emissions reduction goals. The Climate Leaders Program, managed by the Environmental Protection Agency (EPA), focuses on firms. The Climate VISION (Voluntary Innovative Sector Initiatives: Opportunities Now) Program, managed by the Department of Energy (DOE) along with other agencies, focuses on trade groups. GAO examined (1) participants' progress in completing program steps, the agencies' procedures for tracking progress, and their policies for dealing with participants that are not progressing as expected; (2) the types of emissions reduction goals established by participants; and (3) the agencies' estimates of the share of U.S. greenhouse gas emissions that their programs account for and their estimates of the programs' impacts on U.S. emissions."

A letter report issued by the Government Accountability Office with an abstract that begins "In the current tight budgetary environment, program performance is likely to be an increasingly significant factor used to help policymakers assess programs and determine funding levels. Given concerns over the quality of performance data for the Trade Adjustment Assistance (TAA) program and the importance of having meaningful information to assess program performance, we examined (1) whether the TAA performance data provide a credible picture of the program's performance, (2) what TAA performance data the Department of Labor (Labor) makes available to the public and states and the usefulness of the data for managing the program, and (3) what Labor is doing to address issues with the quality of TAA data submitted by states."

Testimony issued by the Government Accountability Office with an abstract that begins "The Department of Energy (DOE) is working to obtain a license from the Nuclear Regulatory Commission (NRC) to construct a nuclear waste repository at Yucca Mountain in Nevada. The project, which began in the 1980s, has been beset by delays. In 2004, GAO raised concerns that persistent quality assurance problems could further delay the project. Then, in 2005, DOE announced discovery of employee e-mails suggesting quality assurance problems. Quality assurance, which establishes requirements for work to be performed under controlled conditions that ensure quality, is critical to making sure the project meets standards for protecting public health and the environment. This testimony, which summarizes GAO's March 2006 report (GAO-06-313), provides information on (1) the history of the project's quality assurance problems, (2) DOE's tracking of these problems and efforts to address them since GAO's 2004 report, and (3) challenges facing DOE as it continues to address quality assurance issues within the project."

A process to facilitate mercury extraction from high temperature flue/fuel gas via the use of metal sorbents which capture mercury at ambient and high temperatures. The spent sorbents can be regenerated after exposure to mercury. The metal sorbents can be used as pure metals (or combinations of metals) or dispersed on an inert support to increase surface area per gram of metal sorbent. Iridium and ruthenium are effective for mercury removal from flue and smelter gases. Palladium and platinum are effective for mercury removal from fuel gas (syngas). An iridium-platinum alloy is suitable for metal capture in many industrial effluent gas streams including highly corrosive gas streams.

Free weekly newspaper that includes business and classified advertising.

Email from Jeannette Goodrum to Eleanor Brown responding to Brown's request for more information about the reunion in Portland.

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

An unidentified man throws away some non-recyclable items in a city dumpster.

An unidentified man throws away some non-recyclable items in a city dumpster.

This report discuses the 109th Congress's considering legislation and conducting oversight on issues involving recreation on federal lands, including traditional recreational pursuits and newer forms of motorized recreation. The Administration is addressing these issues through budgetary, regulatory, and other actions.

The recent observations of bright optical and X-ray flares by the Swift satellite suggest these are produced by the late activities of the central engine. We study the neutrino emission from far-UV/X-ray flares under the late internal shock model. Since the efficiency of pion production in the highest energy is higher than that of the prompt bursts, such neutrino flashes from flares can give comparable or larger contributions to a diffuse very high energy neutrino background if the total energy input into flares is comparable to the radiated energy of the prompt bursts. These signals are very important because they have possibility to probe the nature of flares (baryonic or magnetic, the photon field, the magnetic field, and so on).

This Final Report describes the scientific accomplishments that have been achieved with support from grant DE-FG02-03ER46023 during the period 12/01/02 ? 11/30/05. The funding supported a vigorous scientific program allowing the PI to achieve leadership in a number of important areas. In particular, research carried out during this period has opened way to ultrafast dynamics studies of materials by combining the capabilities of synchrotron radiation with those of ultrafast lasers. This enables the initiation of laser-induced excitations and studies of their subsequent dynamics using laser-pump/x-ray probe techniques. Examples of such excitations include phonons, shock waves, excitons, spin-waves, and polaritons. The breadth of phenomena that can now be studied in the time-domain is very broad, revealing new phenomena and mechanisms that are critical to many applications of materials.

As we enter the era of petascale computing, system architects must plan for machines composed of tens of thousands or even hundreds of thousands of processors. Although fully connected networks such as fat-tree interconnects currently dominate HPC network designs, such approaches are inadequate for thousands of processors due to the superlinear growth of component costs. Traditional low-degree interconnect topologies, such as the 3D torus, have reemerged as a competitive solution because the number of switch components scales linearly with the node count, but such networks are poorly suited for the requirements of many scientific applications. We present our latest work on a hybrid switch architecture called HFAST that uses circuit switches to dynamically reconfigure a lower-degree interconnect to suit the topological requirements of each scientific application. This paper expands upon our prior work on the requirements of non-adaptive applications by analyzing the communication characteristics of dynamically adapting AMR code and presents a methodology that captures the evolving communication requirements. We also present a new optimization that computes the under-utilization of fat-tree interconnects for a given communication topology, showing the potential of constructing a ''fit-tree'' for the application by using the HFAST circuit switches to provision an optimal interconnect topology for …

As retail choice states reach the end of their transitional, rate-cap periods, state regulators must decide what type of default supply service to provide to customers that have not switched to a competitive retail supplier. In a growing number of states, regulators have adopted real-time pricing (RTP) as the default service for large commercial and industrial (C&I) customers. Although this trend is driven chiefly by policy objectives related to retail competition, default service RTP may have the added benefit of stimulating demand response. To evaluate the potential role of RTP as a means to both ends--retail market development and demand response--we conducted a comprehensive review of experience with default RTP in the U.S. and examined the emergence of RTP as a product offering by competitive retail suppliers. Across the ten utilities with default RTP in place in 2005, between 5% and 35% of the applicable load remained on the rate. Based on interviews with competitive retailers, we find evidence to suggest that a comparable amount of load in these states has switched to hourly pricing arrangements with competitive retailers. Many customers on default or competitive hourly pricing are paying prices indexed to the real-time spot market, and thus have no …

We are studying the response of a CVD diamond detector to a strong x-ray pulse followed by a second weaker pulse arriving 50 to 300 ns later, with a contrast in amplitude of about 1000. These tests, performed at the LLNL Jupiter laser facility, are intended to produce charge carrier densities similar to those expected during a DT implosion at NIF, where a large 14.1 MeV neutron pulse is followed by a weak downscattered neutron signal produced by slower 6-10 MeV neutrons. The number of downscattered neutrons must be carefully measured in order to obtain an accurate value for the areal density, which is proportional to the ratio of downscattered to primary neutrons. The effects of the first strong pulse may include saturation of the diamond wafer, saturation of the oscilloscope, or saturation of the associated power and data acquisition electronics. We are presenting a double pulse experiment that will use a system of several polycrystalline CVD diamond detectors irradiated by 8.6 keV x-rays emitted from a zinc target. We will discuss implication for a NIF areal density measurement.

Hard x-ray (''Thin wall'') imaging will be employed on the National Ignition Facility (NIF) to spatially locate laser beam energy deposition regions on the hohlraum walls in indirect drive Inertial Confinement Fusion (ICF) experiments, relevant for ICF symmetry tuning. Based on time resolved imaging of the hard x-ray emission of the laser spots, this method will be used to infer hohlraum wall motion due to x-ray and laser ablation and any beam refraction caused by plasma density gradients. In optimizing this measurement, issues that have to be addressed are hard x-ray visibility during the entire ignition laser pulse with intensities ranging from 10{sup 13} to 10{sup 15} W/cm{sup 2}, as well as simultaneous visibility of the inner and the outer laser drive cones. In this work we will compare the hard x-ray emission calculated by LASNEX and analytical modeling with thin wall imaging data recorded previously on Omega and during the first hohlraum experiments on NIF. Based on these calculations and comparisons the thin wall imaging will be optimized for ICF/NIF experiments.

Algebraic multigrid (AMG) solves linear systems based on multigrid principles, but in a way that only depends on the coefficients in the underlying matrix. The author begins with a basic introduction to AMG methods, and then describes some more recent advances and theoretical developments

The thermoelastic properties of bcc tantalum have been investigated over a broad range of pressures (up to 10 Mbar) and temperatures (up to 26,000 K) using a new first-principles approach that accurately accounts for cold, electron-thermal, and ion-thermal contributions in materials where anharmonic effects are small. Specifically, we have combined ab initio full-potential linear-muffin-tin-orbital (FP-LMTO) electronic-structure calculations for the cold and electron-thermal contributions to the elastic moduli with phonon contributions for the ion-thermal part calculated using model generalized pseudopotential theory (MGPT). For the latter, a summation of terms over the Brillouin zone is performed within the quasi-harmonic approximation, where each term is composed of a strain derivative of the phonon frequency at a particular k point. At ambient pressure, the resulting temperature dependence of the Ta elastic moduli is in excellent agreement with ultrasonic measurements. The experimentally observed anomalous behavior of C{sub 44} at low temperatures is shown to originate from the electron-thermal contribution. At higher temperatures, the main contribution to the temperature dependence of the elastic moduli comes from thermal expansion, but inclusion of the electron- and ion-thermal contributions is essential to obtain quantitative agreement with experiment. In addition, the pressure dependence of the moduli at ambient temperature compares …

Radioactive wastes are confined in 49 underground storage tanks at the Savannah River Site. The waste is transported between tanks via underground transfer piping. An assessment of the structural integrity of the transfer piping was performed to ensure that the present condition of the piping was sound and to provide life expectancy estimates for the piping based on anticipated service. The assessment reviewed the original design of the piping, the potential and observed degradation mechanisms, the results from past inspections of the piping, and a Fitness-For-Service evaluation for a section of piping that experienced pitting in a locally thinned area. The assessment concluded that the piping was structurally sound. Assuming that service conditions remain the same, the piping will remain functional for its intended service life.

A flier advertising an event titled "Human Rights and Mayan Ethical Perspectives" with Jorge M. Rodriguez speaking. There is a Mayan calendar with a summary of the event's focus in the middle. The date, time, and location are also listed at the bottom.