A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Energy (DOE) has long suffered from contract and management oversight weaknesses. Since 1990 DOE contract management has been on GAO's list of programs at high risk for fraud, waste, abuse, and mismanagement. In 2003 DOE's Office of Science (Science) unveiled its 20-year plan to acquire and upgrade potentially costly research facilities. In light of DOE's history and the potential cost of this ambitious plan, GAO was asked to examine Science's project management performance. GAO determined (1) the extent to which Science has managed its projects within cost and schedule targets, (2) the factors affecting project management performance, and (3) challenges that may affect Science's future performance. GAO reviewed DOE and Science's project management guidance and 42 selected Science projects and also interviewed DOE and laboratory officials."

A letter report issued by the Government Accountability Office with an abstract that begins "The financing of the $299 billion Medicaid program is shared between the federal government and states. States pay qualified providers for covered Medicaid services and receive federal matching funds from the Department of Health & Human Services' (HHS) Centers for Medicare & Medicaid Services (CMS) for expenditures authorized in their state Medicaid plans. In addition to these standard Medicaid payments, most states make supplemental payments to certain providers, which are also matched by federal funds. GAO was asked for information about Medicaid supplemental payments. GAO examined (1) what information states report about supplemental payments on Medicaid expenditure reports and (2) in selected states, how much was distributed as supplemental payments, to what types of providers, and for what purposes. GAO analyzed CMS's Medicaid expenditure reports and surveyed five states that make large supplemental payments."

A letter report issued by the Government Accountability Office with an abstract that begins "Military operations in support of the Global War on Terrorism, particularly those in Iraq and Afghanistan, have challenged the Department of Defense's (DOD) ability to provide needed ground forces. Section 354 of the Fiscal Year 2008 National Defense Authorization Act directed GAO to report on a number of military readiness issues. In this report, GAO addresses (1) the extent to which DOD's use of nonstandard forces to meet ground force requirements has impacted the force and (2) the extent to which DOD has faced challenges in managing the training and use of these forces, and taken steps to address any challenges. To address these objectives, GAO analyzed DOD policies, guidance, and data and interviewed department, joint, combatant command, and service officials as well as trainers and over 300 deploying, deployed, and redeploying servicemembers."

A letter report issued by the Government Accountability Office with an abstract that begins "The Federal Deposit Insurance Corporation (FDIC) has a demanding responsibility enforcing banking laws, regulating financial institutions, and protecting depositors. Effective information security controls are essential to ensure that FDIC systems and information are adequately protected from inadvertent misuse, fraudulent, or improper disclosure. As part of its audit of FDIC's 2007 financial statements, GAO assessed (1) the progress FDIC has made in mitigating previously reported information security weaknesses and (2) the effectiveness of FDIC's controls in protecting the confidentiality, integrity, and availability of its financial systems and information. To do this, GAO examined security policies, procedures, reports, and other documents; observed controls over key financial applications; and interviewed key FDIC personnel."

A letter report issued by the Government Accountability Office with an abstract that begins "Government agencies have a long-standing obligation under the Privacy Act of 1974 to protect the privacy of individuals about whom they collect personal information. A number of additional laws have been enacted in recent years directing agency heads to designate senior officials as focal points with overall responsibility for privacy. GAO was asked to (1) describe laws and guidance that set requirements for senior privacy officials within federal agencies, and (2) describe the organizational structures used by agencies to address privacy requirements and assess whether senior officials have oversight over key functions. To achieve these objectives, GAO analyzed the laws and related guidance and analyzed policies and procedures relating to key privacy functions at 12 agencies."

A letter report issued by the Government Accountability Office with an abstract that begins "The John Warner National Defense Authorization Act for Fiscal Year 2007 included provisions regarding mental health concerns and traumatic brain injury (TBI). GAO addressed these issues as required by the Act. In this report GAO discusses (1) DOD efforts to implement pre-deployment mental health screening; (2) how post-deployment mental health referrals are tracked; and (3) screening requirements for mild TBI. GAO selected the Army, Marine Corps, and Army National Guard for the review. GAO reviewed documents and interviewed DOD officials and conducted site visits to three military installations where the pre-deployment health assessment was being conducted."

A letter report issued by the Government Accountability Office with an abstract that begins "Following the World Trade Center (WTC) attack, the Congress appropriated more than $8 billion to the Department of Homeland Security's (DHS) Federal Emergency Management Agency for response and recovery activities. The Department of Health and Human Services (HHS) received some of this funding to establish health screening and monitoring programs for responders to the disaster and later received additional appropriations to fund treatment. In total, about $369.2 million has been appropriated or awarded for the WTC health programs. GAO previously reported on problems that these programs have had in ensuring the availability of services for all responders. GAO was asked to examine lessons from the WTC health programs that could guide future programs. GAO examined (1) lessons from the programs' experience and (2) HHS actions or plans that incorporate the lessons. GAO interviewed WTC health program officials and other experts and reviewed DHS and HHS documents."

Correspondence issued by the Government Accountability Office with an abstract that begins "This letter formally transmits the briefing in response to section 957(a) of the National Defense Authorization Act for Fiscal Year 2008 and the accompanying conference report. The act required the Comptroller General to conduct an assessment of the most recent reorganization of the Office of the Under Secretary of Defense for Policy."

The SciDAC Visualization and Analytics Center for Enabling Technologies (VACET) isa highly productive effort combining the forces of leading visualization researchersfrom five different institutions to solve some of the most challenging dataunderstanding problems in modern science. The VACET technology portfolio isdiverse, spanning all typical visual data analysis use models and effectivelybalancing forward-looking research with focused software architecture andengineering resulting in a production-quality software infrastructure. One of the keyelements in VACET's success is a rich set of projects that are collaborations withscience stakeholders: these efforts focus on identifying and overcoming obstacles toscientific knowledge discovery in modern, large, and complex scientific datasets.

Field-rugged and field-programmable differential mobility spectrometry (DMS) networks provide highly selective, universal monitoring of vapors and aerosols at detectable levels from persons or areas involved with illicit chemical/biological/explosives (CBE) production. CBE sensor motes used in conjunction with automated fast gas chromatography with DMS detection (GC/DMS) verification instrumentation integrated into situational operations-management systems can be readily deployed and optimized for changing application scenarios. The feasibility of developing selective DMS motes for a “smart dust” sampling approach with guided, highly selective, fast GC/DMS verification analysis is a compelling approach to minimize or prevent the illegal use of explosives or chemical and biological materials. DMS is currently one of the foremost emerging technologies for field separation and detection of gas-phase chemical species. This is due to trace-level detection limits, high selectivity, and small size. Fast GC is the leading field analytical method for gas phase separation of chemical species in complex mixtures. Low-thermal-mass GC columns have led to compact, low-power field systems capable of complete analyses in 15–300 seconds. A collaborative effort optimized a handheld, fast GC/DMS, equipped with a non-rad ionization source, for peroxide-based explosive measurements.

We have grown single crystals of novel ruthenates (Sr,Ba)(Fe,Co){sub 2+x}Ru{sub 4-x}O{sub 11} that exhibit long-range ferromagnetic order well above room temperature, accompanied by narrow-gap semiconducting properties that include a large anomalous Hall conductance, low resistivity, high carrier concentration and low coercive field, which are properties well suited to spintronic applications. X-ray diffraction, EDX, neutron diffraction and x-ray absorption measurements on single crystals firmly establish the 'R-Type' hexagonal ferrite structure (space group P6{sub 3}/mmc, No 194) and single-phase nature of all samples. The electronic structure and physical properties can be tuned by simple chemical substitution of two elements, M = Fe or Co, or by varying the relative concentration of 3d solutes and 4d Ru. Our magnetotransport, x-ray magnetic circular dichroism and magnetic moment data suggest the mechanism for FM order is quite different from that governing known dilute magnetic semiconductors.

The development of a secondary ion mass spectrometry (SIMS) based technique of Ion Microscopy in boron neutron capture therapy (BNCT) was the main goal of this project, so that one can study the subcellular location of boron-10 atoms and their partitioning between the normal and cancerous tissue. This information is fundamental for the screening of boronated drugs appropriate for neutron capture therapy of cancer. Our studies at Cornell concentrated mainly on studies of glioblastoma multiforme (GBM). The early years of the grant were dedicated to the development of cryogenic methods and correlative microscopic approaches so that a reliable subcellular analysis of boron-10 atoms can be made with SIMS. In later years SIMS was applied to animal models and human tissues of GBM for studying the efficacy of potential boronated agents in BNCT. Under this grant the SIMS program at Cornell attained a new level of excellence and collaborative SIMS studies were published with leading BNCT researchers in the U.S.

The drift and diffusion of a cloud of ions in a fluid are distorted by an inhomogeneous electric field. If the electric field carries the center of the distribution in a straight line and the field configuration is suitably symmetric, the distortion can be calculated analytically. We examine the specific examples of fields with cylindrical and spherical symmetry in detail assuming the ion distributions to be of a generally Gaussian form. The effects of differing diffusion coefficients in the transverse and longitudinal directions are included.

High temperature superconducting (HTS) motors offer the potential for dramatic volume and loss reduction compared to conventional, high horspower, industrial motors. This report is the final report on the results of eight research tasks that address some of the issues related to HTS motor development that affect motor efficiency, cost, and reliability.

This report provides research highlights from the Advanced Photon Source (APS). Although these highlights represent less than 10% of the published work from the APS in 2007, they give a flavor of the diversity and impact of user research at the facility. In the strategic planning the aim is to foster the growth of existing user communities and foresee new areas of research. This coming year finds the APS engaged in putting together, along with the users, a blueprint for the next five years, and making the case for a set of prioritized investments in beamlines, the accelerator, and infrastructure, each of which will be transformational in terms of scientific impact. As this is written plans are being formulated for an important user workshop on October 20-21, 2008, to prioritize strategic plans. The fruit from past investments can be seen in this report. Examples include the creation of a dedicated beamline for x-ray photon correlation spectroscopy at Sector 8, the evolution of dedicated high-energy x-ray scattering beamlines at sectors 1 and 11, a dedicated imaging beamline at Sector 32, and new beamlines for inelastic scattering and powder diffraction. A single-pulse facility has been built in collaboration with Sector 14 (BioCARS) …

This study explores the use of breathing orbital valence bond (BOVB) trial wave functions for diffusion Monte Carlo (DMC). The approach is applied to the computation of the carbon-hydrogen (C-H) bond dissociation energy (BDE) of acetylene. DMC with BOVB trial wave functions yields a C-H BDE of 132.4 {+-} 0.9 kcal/mol, which is in excellent accord with the recommended experimental value of 132.8 {+-} 0.7 kcal/mol. These values are to be compared with DMC results obtained with single determinant trial wave functions, using Hartree-Fock orbitals (137.5 {+-} 0.5 kcal/mol) and local spin density (LDA) Kohn-Sham orbitals (135.6 {+-} 0.5 kcal/mol).

We have successfully incorporated high surface area particles of titanate ion exchange materials (monosodium titanate and crystalline silicotitanate) with acceptable particle size distribution into porous and inert support membrane fibrils consisting of polytetrafluoroethylene (Teflon{reg_sign}), polyethylene and cellulose materials. The resulting membrane sheets, under laboratory conditions, were used to evaluate the removal of surrogate radioactive materials for cesium-137 and strontium-90 from high caustic nuclear waste simulants. These membrane supports met the nominal requirement for nonchemical interaction with the embedded ion exchange materials and were porous enough to allow sufficient liquid flow. Some of this 47-mm size stamped out prototype titanium impregnated ion exchange membrane discs was found to remove more than 96% of dissolved cesium-133 and strontium-88 from a caustic nuclear waste salt simulants. Since in traditional ion exchange based column technology monosodium titanate (MST) is known to have great affinity for the sorbing of other actinides like plutonium, neptunium and even uranium, we expect that the MST-based membranes developed here, although not directly evaluated for uptake of these three actinides because of costs associated with working with actinides which do not have 'true' experimental surrogates, would also show significant affinity for these actinides in aqueous media. It was also observed …

The Waste Acceptance Product Specifications (WAPS)1 1.2 require that 'The Producer shall report the inventory of radionuclides (in Curies) that have half-lives longer than 10 years and that are, or will be, present in concentrations greater than 0.05 percent of the total inventory for each waste type indexed to the years 2015 and 3115'. As part of the strategy to meet WAPS 1.2, the Defense Waste Processing Facility (DWPF) will report for each waste type, all radionuclides (with half-lives greater than 10 years) that have concentrations greater than 0.01 percent of the total inventory from time of production through the 1100 year period from 2015 through 3115. The initial listing of radionuclides to be included is based on the design-basis glass as identified in the Waste Form Compliance Plan (WCP)2 and Waste Form Qualification Report (WQR)3. However, it is required that this list be expanded if other radionuclides with half-lives greater than 10 years are identified that may meet the greater than 0.01% criterion for Curie content. Specification 1.6 of the WAPS, International Atomic Energy Agency (IAEA) Safeguards Reporting for High Level Waste (HLW), requires that the ratio by weights of the following uranium and plutonium isotopes be reported: U-233, …

With a height of more than 1,500 feet, the BREN (Bare Reactor Experiment, Nevada) Tower dominates the surrounding desert landscape of the Nevada Test Site. Associated with the nuclear research and atmospheric testing programs carried out during the 1950s and 1960s, the tower was a vital component in a series of experiments aimed at characterizing radiation fields from nuclear detonations. Research programs conducted at the tower provided the data for the baseline dosimetry studies crucial to determining the radiation dose rates received by the atomic bomb survivors of Hiroshima and Nagasaki, Japan. Today, BREN Tower stands as a monument to early dosimetry research and one of the legacies of the Cold War.

The U.S. Atomic Energy Commission's Plowshare Program focused on developing the capability to use nuclear detonations for civil works projects and industrial applications. The participants envisioned canals and harbors constructed quickly and cheaply and the augmentation of natural gas, oil, and geothermal power production. The Plowshare Program began in the 1950s and ended in the 1970s. The archaeological effort to relocate and record places associated with this project has identified a unique and varied historical legacy on the landscape in the western United States and discovered that the range and types of projects considered and planned are more diverse than formerly recognized.

The National Security Preparedness Project (NSPP), is to be sustained by various programs, including technology demonstration and evaluation (DEMVAL). This project assists companies in developing technologies under the National Security Technology Incubator program (NSTI) through demonstration and validation of technologies applicable to national security created by incubators and other sources. The NSPP also will support the creation of an integrated demonstration and validation environment. This report documents the DEMVAL marketing and visibility plan, which will focus on collecting information about, and expanding the visibility of, DEMVAL assets serving businesses with national security technology applications in southern New Mexico.

Solids such as granular activated carbon, hematite and sodium phosphates, if present as sludge components in nuclear waste storage tanks, have been found to be capable of precipitating/sorbing actinides like plutonium, neptunium and uranium from nuclear waste storage tank supernatant liqueur. Thus, the potential may exists for the accumulation of fissile materials in such nuclear waste storage tanks during lengthy nuclear waste storage and processing. To evaluate the nuclear criticality safety in a typical nuclear waste storage tank, a study was initiated to measure the affinity of granular activated carbon, hematite and anhydrous sodium phosphate to sorb plutonium, neptunium and uranium from alkaline salt solutions. Tests with simulated and actual nuclear waste solutions established the affinity of the solids for plutonium, neptunium and uranium upon contact of the solutions with each of the solids. The removal of plutonium and neptunium from the synthetic salt solution by nuclear waste storage tank solids may be due largely to the presence of the granular activated carbon and transition metal oxides in these storage tank solids or sludge. Granular activated carbon and hematite also showed measurable affinity for both plutonium and neptunium. Sodium phosphate, used here as a reference sorbent for uranium, as expected, …

To develop the passively-cooled space reactor concept using the capillary-induced lithium flow, since molten lithium possesses a very favorable surface tension characteristic. In space where the gravitational field is minimal, the gravity-assisted natural convection cooling is not effective nor an option for reactor heat removal, the capillary induced cooling becomes an attractive means of providing reactor cooling.

We present here results of continued efforts to understand the performance of microchannel plate (MCP)–based, high-speed, gated, x-ray detectors. This work involves the continued improvement of a Monte Carlo simulation code to describe MCP performance coupled with experimental efforts to better characterize such detectors. Our goal is a quantitative description of MCP saturation behavior in both static and pulsed modes. A new model of charge buildup on the walls of the MCP channels is briefly described. The simulation results agree favorably with experimental data obtained with a short-pulse, high-intensity ultraviolet (UV) laser. These results indicate that a weak saturation can change the exponent of gain with voltage and that a strong saturation lead to a gain plateau. These results also demonstrate that the dynamic range of an MCP in pulsed mode has a value of between 10^2 and 10^3.