Correspondence issued by the General Accounting Office with an abstract that begins "The Federal Civil Penalties Inflation Adjustment Act of 1990 went under a governmentwide review by GAO earlier this year. The act required each federal agency to issue a regulation adjusting its covered maximum and minimum civil monetary penalties for inflation by October 23, 1996, and requires them to make necessary adjustments at least once every 4 years thereafter. GAO determined that the Mine Safety and Health Administration within the Department of Labor published its first round of penalty adjustments in April 1998, but has not published a second round of adjustments for at least two eligible penalties."

Correspondence issued by the General Accounting Office with an abstract that begins "Humana, Inc., a large Medicare Choice Plan, provided a prescription drug benefit with a coverage limit that was below the amount listed in its 1998 Florida Medicare Choice contract. Ernst and Young, the contractor hired by the Health Care Financing Administration (HCFA) to review Humana's contract submission, did not detect the discrepancies because it failed to follow HCFA's review procedures. HCFA has revised its processes and procedures for monitoring the accuracy of the information in Medicare Choice plans' contracts. The Humana case shows that the agency did not follow procedures that could have revealed the contract discrepancies that caused some beneficiaries to receive less coverage for brand name prescription drugs than the amount specified in their plan's basic package. Unless HCFA adheres to its revised monitoring procedures, beneficiaries will have few guarantees that they will receive the prescription drug benefits for which the government contracted and paid."

A letter report issued by the General Accounting Office with an abstract that begins "GAO reviewed grant monitoring and evaluation efforts by the U.S. Department of Justice's (DOJ) Office of Justice Program (OJP). This report discusses the monitoring of discretionary grants awarded by the Bureau of Justice Assistance's (BJA) Byrne Program and the Violence Against Women Office (VAWO) within OJP. In constant 2000 dollars, Byrne and VAWO discretionary grants grew about 85 percent--from $105 million to $194 million between fiscal years 1997 and 2000. These funds were awarded to state and local governments, either on a competitive basis or pursuant to legislation allocating funds through congressional earmarks. BJA and VAWO, together with OJP's Office of the Comptroller, are responsible for monitoring these grants to ensure they are implemented as intended, are responsive to grant goals and objectives, and comply with statutory regulations and policy guidelines. OJP's monitoring requirements include the development of monitoring plans that articulate who will conduct monitoring, the manner in which it will be done, and when and what type of monitoring activities are planned. Grant managers are to maintain documentation in grant files using such techniques as written reports of on-site reviews and telephone interview write-ups. …

A letter report issued by the General Accounting Office with an abstract that begins "The Securities and Exchange Commission (SEC) has indicated that one-third of Amex's new listings did not meet the exchange's equity listing standards. Amex's listing guidelines address factors that are the same or similar to those addressed by other U.S. stock markets. Quantitative requirements addressed share price, stockholders' equity, income, and market value of publicly held shares. However, the minimum thresholds for meeting these requirements varied to reflect the differences in the companies that each market targeted for listing. The most significant difference between Amex's guidelines and the listing standards of other U.S. stock markets was that Amex was one of only two markets that retained discretion to initially list companies that did not meet all of its quantitative requirements. Amex had not implemented the Office of Compliance Inspections and Examinations' (OCIE) recommendations on the exchange's discretionary listing decisions. OCIE officials told GAO that in the absence of an Amex agreement to address the recommendations, they would include them among the open significant recommendations to be reported to the SEC Commissioners as a result of a 1998 GAO recommendation. The Commission can require Amex to implement OCIE's …

A letter report issued by the General Accounting Office with an abstract that begins "The Department of State is leading an interagency assessment of staffing needs in U.S. embassies and consulates to improve mission effectiveness and reduce security vulnerabilities and costs. This process, called "rightsizing," was begun in response to the recommendations of the Overseas Presence Advisory Panel. In the aftermath of the August 1998 bombings of U.S. embassies in Africa, the Panel determined that overseas staffing levels had not been adjusted to reflect changing missions and requirements; thus, some embassies and consulates were overstaffed, and others were understaffed. The Panel recommended a rightsizing strategy to improve security by reducing the number of embassy staff at risk. The Panel also recommended the establishment of a permanent committee to regularly adjust the U.S. presence, and the adoption of explicit criteria to guide decisions on the size and location of posts. A State-led interagency committee conducted pilot studies at six embassies in 2000 to (1) develop a methodology for assessing staffing at embassies and consulates during the next five years and (2) recommend adjustments to staffing levels at the embassies studied. The interagency committee formed teams that visited U.S. embassies in Amman, …

A letter report issued by the General Accounting Office with an abstract that begins "Concerns arose in the late 1990s about day trading, particularly the use of questionable advertising to attract customers without fully disclosing or by downplaying the risks involved. Concerns were also raised that traders were losing large amounts of money. Day traders as a group and day trading firms have continued to evolve and are generally more experienced and sophisticated about securities markets and investing than was the case several years ago. Likewise, day trading firms' operations have evolved, and many have shifted their primary focus away from retail customers and toward attracting institutional customers, such as hedge funds and money market managers. Furthermore, more firms are likely to engage in proprietary trading activities through professional traders that trade the firms' own capital. Finally, although the number of day trading firms appears to have remained constant, several day trading firms have been acquired by other brokerages and market participants whose customers want the direct access to securities markets and market information that technology used by day trading firms provides. Since GAO's 2000 review, the Securities and Exchange Commission and the self-regulatory organizations have addressed many of the …

We have searched for strangelets in a triggered sample of 61 million central (top 4percent) Au+Au collisions at sqrt sNN = 200 GeV near beam rapidities at the STAR solenoidal tracker detector at the BNL Relativistic Heavy Ion Collider. We have sensitivity to metastable strangelets with lifetimes of order>_0.1 ns, in contrast to limits over ten times longer in BNL Alternating Gradient Synchrotron (AGS) studies and longer still at the CERN Super Proton Synchrotron (SPS). Upper limits of a few 10-6 to 10-7 per central Au+Au collision are set for strangelets with mass>~;;30 GeV/c2.

Methods for geophysical model assessment, in particuale thecomputation of model parameter resolution, indicate the value and thelimitations of time-lapse data in estimating reservoir flow properties. Atrajectory-based method for computing sensitivities provides an effectivemeans to compute model parameter resolutions. We examine the commonsituation in which water encroaches into a resrvoir from below, as due tothe upward movement of an oil-water contact. Using straight-forwardtechniques we find that, by inclusing reflections off the top and bottomof a reservoir tens of meters thick, we can infer reservoir permeabilitybased upon time-lapse data. We find that, for the caseof water influxfrom below, using multiple time-lapse 'snapshots' does not necessarilyimprove the resolution of reservoir permeability. An application totime-lapse data from the Norne field illustrates that we can resolve thepermeability near a producing well using reflections from threeinterfaces associated with the reservoir.

The use of HTS materials in high radiation environmentsrequires that the superconducting properties remain constant up to aradiation high dose. BSCCO-2223 samples from two manufacturers wereirradiated with 50 MeV protons at fluences of up to 5 x 1017 protons/cm2.The samples lost approximately 75 percent of their pre-irradiation Ic.This compares with Nb3Sn, which loses about 50 percent at the samedisplacements per atom.

The lateral order of poly(styrene-block-isoprene) copolymer(PS-b-PI) thin films is characterized by the emerging technique ofresonant soft X-ray scattering (RSOXS) at the carbon K edge and comparedto ordering in bulk samples of the same materials measured usingconventional small-angle X-ray scattering. We show resonance using theoryand experiment that the loss of scattering intensity expected with adecrease in sample volume in the case of thin films can be overcome bytuning X-rays to the pi* resonance of PS or PI. Using RSOXS, we study themicrophase ordering of cylinder- and phere-forming PS-b-PI thin films andcompare these results to position space data obtained by atomic forcemicroscopy. Our ability to examine large sample areas (~;9000 mu m2) byRSOXS enables unambiguous identification of the lateral lattice structurein the thin films. In the case of the sphere-forming copolymer thin film,where the spheres are hexagonally arranged, the average sphere-to-spherespacing is between the bulk (body-centered cubic) nearest neighbor andbulk unit cell spacings. In the case of the cylinder-forming copolymerthin film, the cylinder-to-cylinder spacing is within experimental errorof that obtained in the bulk.

Various combinations of reactor type and fuel composition have been characterized using principle components analysis (PCA) of the concentrations of 9 U and Pu isotopes in the 10 fuel as a function of burnup. The use of PCA allows the reduction of the 9-dimensional data (isotopic concentrations) into a 3-dimensional approximation, giving a visual representation of the changes in nuclear fuel composition with burnup. Real-world variation in the concentrations of {sup 234}U and {sup 236}U in the fresh (unirradiated) fuel was accounted for. The effects of reprocessing were also simulated. The results suggest that, 15 even after reprocessing, Pu isotopes can be used to determine both the type of reactor and the initial fuel composition with good discrimination. Finally, partial least squares discriminant analysis (PSLDA) was investigated as a substitute for PCA. Our results suggest that PLSDA is a better tool for this application where separation between known classes is most important.

Arrays of clustered, regularly spaced short palindromic repeats (CRISPR) are widespread in the genomes of many bacteria and almost all archaea. These arrays are composed of direct repeats sized 24-47 bp separated by similarly sized non-repetitive sequences (spacers). It was recently experimentally shown that CRISPR arrays, along with a group of associated proteins, confer resistance to phage. Following exposure to phage, bacteria integrate new spacer sequences that are derived from the phage genome. Acquisition of these spacers enables the bacterial cell to shutdown the phage attack, presumably by an RNA-interference-like mechanism. This progress discusses the structure and function of CRISPRs and the implications of his new antiviral mechanisms in bacteria.

The 2H evaporator at the Savannah River Site has been used to treat an aluminum-rich waste stream from canyon operations and a silicon-rich waste stream from the Defense Waste Processing Facility. The formation of aluminosilicate scale in the evaporator has caused significant operational problems. Because uranium has been found to accumulate in the aluminosilicate solids, the scale deposition has introduced criticality concerns as well. The objective of the tests described in this report is to determine possible causes of the uranium incorporation in the evaporator scale materials. The scope of this task is to perform laboratory experiments with simulant solutions to determine if (1) uranium can be deposited on the surfaces of various sodium aluminosilicate (NAS) forms and (2) aluminosilicates can form on the surfaces of uranium-containing solids. Batch experiments with simulant solutions of three types were conducted: (1) contact of uranium solutions/sols with NAS coatings on stainless steel surfaces, (2) contact of uranium solutions with NAS particles, and (3) contact of precipitated uranium-containing particles with solutions containing aluminum and silicon. The results show that uranium can be incorporated in NAS solids through encapsulation in bulk agglomerated NAS particles of different phases (amorphous, zeolite A, sodalite, and cancrinite) as well …

In a previous publication, procedures were proposed for unambiguously extracting amplitudes for single and double ionization from a time-dependent wavepacket by effectively propagating for an infinite time following a radiation pulse. Here we demonstrate the accuracy and utility of those methods for describing two-photon single and one-photon double ionization of helium. In particular it is shown how narrow features corresponding to autoionizing states are easily resolved with these methods.

The Savannah River Site's (SRS) Defense Waste Processing Facility (DWPF) requested development of tooling for remote replacement of gaskets in mechanical Hanford connectors. The facility has compressed air supply, two master-slave manipulators (MSM's) and a lightweight robotic arm for operation of the remote tools. The Savannah River National Laboratory (SRNL) developed and tested multiple tools to perform the gasket replacement tasks. Separate pneumatic snap-ring removal tools that use the connector skirt as a reaction surface were developed for removal of the snap ring and spent gasket on both vertical and horizontal Hanford connectors. A pneumatic tool that clamps and centers on the jumper pipe ID was developed to simultaneously install the new gasket and snap ring. A pneumatic snap-ring-loading tool was developed that compresses the snap ring and places it in a groove in the installation tool. All of the tools are located on a custom work table with a pneumatic valve station that directs compressed air to the desired tool and vents the tools as needed. The entire system has been successfully tested using MSM's to manipulate the various tools. Deployment of the entire system is expected during FY08. The Hanford connector gasket replacement tooling has been successfully tested …

The assigned work scope includes the modification and utilization of the Plasma Converter System, Integration of a StarCell{trademark} Multistage Ceramic Membrane System (StarCell), and testing of the integrated systems towards DOE targets for gasification and membrane separation. Testing and evaluation was performed at the Startech Engineering and Demonstration Test Center in Bristol, CT. The Objectives of the program are as follows: (1) Characterize the performance of the integrated Plasma Converter and StarCell{trademark} Systems for hydrogen production and purification from abundant and inexpensive feedstocks; (2) Compare integrated hydrogen production performance to conventional technologies and DOE benchmarks; (3) Run pressure and temperature testing to baseline StarCell's performance; and (4) Determine the effect of process contaminants on the StarCell{trademark} system.

A screening and ranking framework (SRF) has been developedto evaluate potential geologic carbon dioxide (CO2) storage sites on thebasis of health, safety, and environmental (HSE) risk arising from CO2leakage. The approach is based on the assumption that CO2 leakage risk isdependent on three basic characteristics of a geologic CO2 storage site:(1) the potential for primary containment by the target formation; (2)the potential for secondary containment if the primary formation leaks;and (3) the potential for attenuation and dispersion of leaking CO2 ifthe primary formation leaks and secondary containment fails. Theframework is implemented in a spreadsheet in which users enter numericalscores representing expert opinions or published information along withestimates of uncertainty. Applications to three sites in Californiademonstrate the approach. Refinements and extensions are possible throughthe use of more detailed data or model results in place of propertyproxies.

This report documents a scenario analysis exploring the value of advanced technologies in the U.S. buildings, industrial, and transportation sectors in stabilizing atmospheric greenhouse gas concentrations. The analysis was conducted by staff members of Pacific Northwest National Laboratory (PNNL), working at the Joint Global Change Research Institute (JGCRI) in support of the strategic planning process of the U.S. Department of Energy (U.S. DOE) Office of Energy Efficiency and Renewable Energy (EERE). The conceptual framework for the analysis is an integration of detailed buildings, industrial, and transportation modules into MiniCAM, a global integrated assessment model. The analysis is based on three technology scenarios, which differ in their assumed rates of deployment of new or presently available energy-saving technologies in the end-use sectors. These technology scenarios are explored with no carbon policy, and under two CO2 stabilization policies, in which an economic price on carbon is applied such that emissions follow prescribed trajectories leading to long-term stabilization of CO2 at roughly 450 and 550 parts per million by volume (ppmv). The costs of meeting the emissions targets prescribed by these policies are examined, and compared between technology scenarios. Relative to the reference technology scenario, advanced technologies in all three sectors reduce costs …

The purpose of this cooperative research and development agreement (CRADA) between Sasol North America, Inc., and the oak Ridge National Laboratory (ORNL) was to improve the stability of alumina-based industrial catalysts through the combination of aberration-corrected scanning transmission electron microscopy (STEM) at ORNL and innovative sample preparation techniques at Sasol. Outstanding progress has been made in task 1, 'Atomistic processes of La stabilization'. STEM investigations provided structural information with single-atom precision, showing the lattice location of La dopant atoms, thus enabling first-principles calculations of binding energies, which were performed in collaboration with Vanderbilt University. The stabilization mechanism turns out to be entirely due to a particularly strong binding energy of the La tom to the {gamma}-alumina surface. The large size of the La atom precludes incorporation of La into the bulk alumina and also strains the surface, thus preventing any clustering of La atoms. Thus highly disperse distribution is achieved and confirmed by STEM images. la also affects relative stability of the exposed surfaces of {gamma}-alumina, making the 100 surface more stable for the doped case, unlike the 110 surface for pure {gamma}-alumina. From the first-principles calculations, they can estimate the increase in transition temperature for the 3% loading of …

Diamondoids, hydrocarbon molecules with cubic-diamond-cage structures, have unique properties with potential value for nanotechnology. The availability and ability to selectively functionalize this special class of nanodiamond materials opens new possibilities for surface-modification, for high-efficiency field emitters in molecular electronics, as seed crystals for diamond growth, or as robust mechanical coatings. The properties of self-assembled monolayers (SAMs) of diamondoids are thus of fundamental interest for a variety of emerging applications. This paper presents the effects of thiol substitution position and polymantane order on diamondoid SAMs on gold using near-edge X-ray absorption fine structure spectroscopy (NEXAFS) and X-ray photoelectron spectroscopy (XPS). A framework to determine both molecular tilt and twist through NEXAFS is presented and reveals highly ordered diamondoid SAMs, with the molecular orientation controlled by the thiol location. C 1s and S 2p binding energies are lower in adamantane thiol than alkane thiols on gold by 0.67 {+-} 0.05 eV and 0.16 {+-} 0.04 eV respectively. These binding energies vary with diamondoid monolayer structure and thiol substitution position, consistent with different amounts of steric strain and electronic interaction with the substrate. This work demonstrates control over the assembly, in particular the orientational and electronic structure, providing a flexible design of surface …

Studies on the fate and transport of radioactive contaminates in the environment are often constrained by a lack of knowledge on the elemental distribution and general behavior of particulate bound radionuclides contained in hot particles. A number of hot particles were previously isolated from soil samples collected at former U.S. nuclear test sites in the Marshall Islands and characterized using non-destructive techniques [1]. The present investigation at HASYLAB is a part of larger research program at ITU regarding the characterization of environmental radioactive particles different locations and source-terms. Radioactive particles in the environment are formed under a number of different release scenarios and, as such, their physicochemical properties may provide a basis for identifying source-term specific contamination regimes. Consequently, studies on hot particles are not only important in terms of studying the elemental composition and geochemical behavior of hot particles but may also lead to advances in assessing the long-term impacts of radioactive contamination on the environment. Six particles isolated from soil samples collected at the Marshall Islands were studied. The element distribution in the particles was determined by confocal {micro}-XRF analysis using the ANKA FLUO beam line. The CRL (compound refractive lens) was used to focus the exciting beam …

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, John Cornyn, regarding a legal question submitted for clarification: Whether the municipal employee retirement fund of the City of Fort Worth is a "fire fighter's or police officer's pension fund" under section 143.073 of the Local Government Code, for purposes of compensating a fire fighter or police officer absent for a line of duty injury or illness.

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 judge may issue a single mass gathering permit for multiple events.

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: Authority of a county to lease a generator to a radio station.