A letter report issued by the Government Accountability Office with an abstract that begins "Increasing retirements and declining fertility rates, among other factors, could affect the labor force growth in many developed countries. To maintain the size and productivity of the labor force, many governments and employers have introduced strategies to keep workers, such as women and low-skilled workers, in the workforce throughout their working lives. Because other countries have also undertaken efforts to address issues similar to those occurring in the U.S., GAO was asked to (1) describe the policies and practices implemented in other developed countries that may help women and low-wage/low-skilled workers enter and remain in the labor force; (2) examine the targeted groups' employment following the implementation of the policies and practices; and (3) identify the factors that affect employees' use of workplace benefits and the resulting implications. We conducted an extensive review of workplace flexibility and training strategies in a range of developed countries, and we conducted site visits to selected countries. Our reviews were limited to materials that were available in English. While we identified relevant national policies in the U.S., we did not determine whether other countries' strategies could be implemented here. Labor …

Correspondence issued by the Government Accountability Office with an abstract that begins "The National Transportation Safety Board (NTSB) opened a training center in 2003 to train its investigators and others from the transportation community on accident investigation techniques. As GAO reported last year, NTSB's training center is not cost-effective, as its revenues, when combined with the external training costs NTSB staff avoid by using the center, do not cover its costs. In fact, in fiscal year 2006, costs exceeded revenues by $2.7 million. We concluded that potential strategies to increase revenues or decrease costs could increase the cost-effectiveness of the training center; however, vacating the space may be the strategy that reduces costs the most. On December 21, 2006, Congress passed Public Law 109-443, requiring NTSB to prepare a utilization plan for the training center that would, among other things, consider other revenue-generating measures, such as subleasing the training center to another entity; include a detailed financial statement covering current training center expenses and revenues and an analysis of the projected expenses and revenues; and submit the plan to us for review and comment within 90 days of passage of the act. NTSB prepared a draft business plan for the …

A letter report issued by the Government Accountability Office with an abstract that begins "Changes to the U.S. economy have led to longer-term unemployment. Many unemployed workers receive Unemployment Insurance (UI), which provided about $30 billion in benefits in 2006. In 1993, Congress established requirements--now known as the Worker Profiling and Reemployment Services (WPRS) initiative--for state UI agencies to identify claimants who are most likely to exhaust their benefits, and then refer such claimants to reemployment services. To assess the implementation and effect of the initiative, GAO examined (1) how states identify claimants who are most likely to exhaust benefits, (2) to what extent states provide reemployment services as recommended by the Department of Labor (Labor), and (3) what is known about the effectiveness of the initiative in accelerating reemployment. To answer these questions, we used a combination of national data; review of seven states, including visits to local service providers in four states; and existing studies and interviews with Labor and subject matter experts."

A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Commerce's (Commerce) U.S. Census Bureau (Bureau) seeks updated information on the addresses and maps of housing units and group quarters from state, local, and tribal governments through the Local Update of Census Addresses (LUCA) Program. Prepared under the Comptroller General's authority, this report assesses (1) the status of the LUCA Program, (2) the Bureau's response to prior recommendations by GAO and others and new challenges related to the program, and (3) the Bureau's plans for conducting the program in areas affected by hurricanes Katrina and Rita. GAO reviewed LUCA program documents, met with and surveyed participants in the LUCA Dress Rehearsal, and interviewed Bureau officials and local officials in the Gulf Coast region."

Testimony issued by the Government Accountability Office with an abstract that begins "Increasing retirements and declining fertility rates, among other factors, could affect the labor force growth in many developed countries. To maintain the size and productivity of the labor force, many governments and employers have introduced strategies to keep workers who face greater challenges in maintaining jobs and incomes, such as women and low-skilled workers, in the workforce. This testimony discusses our work on (1) describing the policies and practices implemented in other developed countries that may help women and low-wage/low-skilled workers enter and remain in the labor force, (2) examining the change in the targeted groups' employment following the implementation of the policies and practices, and (3) identifying the factors that affect employees' use of workplace benefits and the resulting workplace implications. The testimony is based on a report we are issuing today (GAO-07-817). For that report, we conducted an extensive review of workforce flexibility and training strategies in a range of developed countries and site visits to selected countries. Our reviews were limited to materials available in English. We identified relevant national policies in the U.S., but did not determine whether other countries' strategies could be implemented …

Testimony issued by the Government Accountability Office with an abstract that begins "The Trade Adjustment Assistance (TAA) program, administered by the Department of Labor (Labor), is the nation's primary program providing income support, job training, and other benefits to manufacturing workers who lose their jobs as a result of international trade. In fiscal year 2006, Congress appropriated about $900 million for TAA, including about $220 million for training. GAO has conducted a number of studies on the TAA program since the program was last reauthorized in 2002. This testimony draws upon the results of two of those reports, issued in 2006 and 2007, as well as ongoing work, and addresses issues raised and recommendations made regarding (1) Labor's administration of the TAA program, (2) the challenges states face in providing services to trade affected workers, (3) the factors that affect workers' use of the wage insurance and health coverage benefits, and (4) the impact of using industrywide certification approaches on the number of workers potentially eligible for TAA."

Testimony issued by the Government Accountability Office with an abstract that begins "Manufacturing workers face an uncertain future as manufacturing employment declines--more than 3 million manufacturing jobs have been lost in this country since 2000, many due to international trade. Furthermore, finding a new job may be harder for these workers because they tend to be older with have fewer transferable skills than other laid-off workers. The Trade Adjustment Assistance (TAA) program was established in 1962 to assist manufacturing workers who lose their jobs because of international trade. In 2002, the Congress made a number of key changes designed to expand benefits and decrease the time it takes to get workers into services. This testimony draws upon several GAO reports, including our most recently issued TAA report and our case study of five layoffs, and provides an overview of (1) how the TAA program operates, (2) recent trends in the Department of Labor's (Labor) certification of petitions, (3) the extent to which workers participate in training, (4) the extent to which workers take advantage of other TAA benefits, and (5) what is known about TAA program outcomes. We are not making new recommendations at this time. Labor generally agreed with …

A letter report issued by the Government Accountability Office with an abstract that begins "The Uniformed and Overseas Citizens Absentee Voting Act (UOCAVA) protects the rights of military personnel, their dependents, and overseas citizens to vote by absentee ballot. The Department of Defense (DOD) and others have reported that absentee voting, which relies primarily on mail, can be slow and may, in certain circumstances, serve to disenfranchise these voters. In 2004, Congress required DOD to develop an Internet-based absentee voting demonstration project and required the Election Assistance Commission--which reviews election procedures--to develop guidelines for DOD's project. In 2006, Congress required DOD to report, by May 15, 2007, on plans for expanding its use of electronic voting technologies and required GAO to assess efforts by (1) DOD to facilitate electronic absentee voting and (2) the Commission to develop Internet voting guidelines and DOD to develop an Internet-based demonstration project. GAO also assessed DOD's efforts to develop plans to expand its use of electronic voting technologies. GAO interviewed officials and reviewed and analyzed documents related to these efforts."

Correspondence issued by the Government Accountability Office with an abstract that begins "In connection with fulfilling our requirement to audit the financial statements of the U.S. government, we audited and reported on the Schedules of Federal Debt Managed by the Bureau of the Public Debt (BPD) for the fiscal years ended September 30, 2006 and 2005. As part of these audits, we performed a review of the general and application information security controls over key BPD financial systems. In our audit report on the Schedules of Federal Debt for the fiscal years ended September 30, 2006 and 2005, we concluded that BPD maintained, in all material respects, effective internal control relevant to the Schedule of Federal Debt related to financial reporting and compliance with applicable laws and regulations as of September 30, 2006, that provided reasonable assurance that misstatements, losses, or noncompliance material in relation to the Schedule of Federal Debt would be prevented or detected on a timely basis. We found matters involving information security controls that we do not consider to be reportable conditions but that nevertheless warrant BPD management's attention and action. BPD mitigated the potential effect of such issues with physical security measures, a program of …

Due to their excellent corrosion resistance, iron aluminum alloys are currently being considered for use as weld claddings in fossil fuel fired power plants. The susceptibility to hydrogen cracking of these alloys at higher aluminum concentrations has highlighted the need for research into the effect of chromium additions on the corrosion resistance of lower aluminum alloys. In the present work, three iron aluminum alloys were exposed to simulated coal combustion environments at 500 C and 700 C for both short (100 hours) and long (5,000 hours) isothermal durations. Scanning electron microscopy was used to analyze the corrosion products. All alloys exhibited excellent corrosion resistance in the short term tests. For longer exposures, increasing the aluminum concentration was beneficial to the corrosion resistance. The addition of chromium to the binary iron aluminum alloy prevented the formation iron sulfide and resulted in lower corrosion kinetics. A classification of the corrosion products that developed on these alloys is presented. Scanning transmission electron microscopy (STEM) of the as-corroded coupons revealed that chromium was able to form chromium sulfides only on the higher aluminum alloy, thereby preventing the formation of deleterious iron sulfides. When the aluminum concentration was too low to permit selective oxidation of …

We analyzed relative contributions to the cause andmechanism of injection-induced seismicity at The Geysers geothermalfield, California, using coupled thermal-hydrological-mechanicalmodeling. Our analysis shows that the most important cause forinjection-induced seismicity is injection-induced cooling and associatedthermal-elastic shrinkage that changes the stress state in such a waythat mechanical failure and seismicity can be induced. Specifically, thecooling shrinkage results in unloading and associated loss of shearstrength in critically shear-stressed fractures, which are thenreactivated. Thus, our analysis shows that cooling-induced shear slipalong fractures is the dominant mechanism of injection-induced seismicityat The Geysers.

Impedance spectroscopy measurements were carried out on LaCr{sub 0.95}Mg{sub 0.05}O{sub 3} (LCM) asymmetric interdigitated electrodes supported on fully stabilized 8-mol% Y{sub 2}O{sub 3}-stabilized ZrO{sub 2} (YSZ) electrolytes. Experiments were carried out using 0-50 ppm NO{sub x}, 5-15% O{sub 2} with N{sub 2} as the balance, over temperatures ranging from 600-700 C. AC measurements taken at a constant frequency between 1-100 Hz indicated the phase response of the sensor was less sensitive to fluctuations in the O{sub 2} concentration and the baseline drift was limited. Specific frequencies were observed where the sensor response was essentially temperature independent.

Laboratory management requires that the controls specified in this Facility Safety Plan (FSP) be applied to efficiently and safely perform operations within these facilities. Any operation conducted in these facilities that involves activities not commonly performed by the public, requires an Integrated Work Sheet to determine the appropriate level of safety documentation.

The optical properties of epitaxially grown islands of InGaN are investigated with nanometer-scale spatial resolution using visible apertureless near-field scanning optical microscopy. Scattered light from the tip-sample system is modulated by cantilever oscillations and detected at the third harmonic of the oscillation frequency to distinguish the near-field signal from unwanted scattered background light. Scattered near-field measurements indicate that the as-grown InGaN islanded film may exhibit both inhomogeneous In composition and strain-induced changes that affect the optical signal at 633 nm and 532 nm. Changes are observed in the optical contrast for large 3D InGaN islands (100's of nm) of the same height. Near-field optical mapping of small grains on a finer scale reveals InGaN composition or strain-induced irregularities in features with heights of only 2 nm, which exhibit different near-field signals at 633 nm and 532 nm incident wavelengths. Optical signal contrast from topographic features as small as 30 nm is detected.

Data on materials and surface types that comprise a city, i.e. urban fabric, are needed in order to estimate the effects of light-colored surfaces (roofs and pavements) and urban vegetation (trees, grass, shrubs) on the meteorology and air quality of a city. We discuss the results of a semi-automatic statistical approach used to develop data on surface-type distribution and urban-fabric makeup using aerial color orthophotography, for four metropolitan areas of Chicago, IL, Houston, TX, Sacramento, CA, and Salt Lake City, UT. The digital high resolution (0.3 to 0.5-m) aerial photographs for each of these metropolitan areas covers representative urban areas ranging from 30 km{sup 2} to 52 km{sup 2}. Major land-use types examined included: commercial, residential, industrial, educational, and transportation. On average, for the metropolitan areas studied, vegetation covers about 29-41% of the area, roofs 19-25%, and paved surfaces 29-39%. For the most part, trees shade streets, parking lots, grass, and sidewalks. At ground level, i.e., view from below the tree canopies, vegetation covers about 20-37% of the area, roofs 20-25%, and paved surfaces 29-36%.

None

The growth of water on thin SiO{sub 2} films on Si wafers at vapor pressures between 1.5 and 4 torr and temperatures between -10 and 21 C has been studied in situ using Kelvin Probe Microscopy and X-ray photoemission and absorption spectroscopies. From 0 to 75% relative humidity (RH) water adsorbs forming a uniform film 4-5 layers thick. The surface potential increases in that RH range by about 400 mV and remains constant upon further increase of the RH. Above 75% RH the water film grows rapidly, reaching 6-7 monolayers at around 90% RH and forming a macroscopic drop near 100%. The O K-edge near-edge X-ray absorption spectrum around 75% RH is similar to that of liquid water (imperfect H-bonding coordination) at temperatures above 0 C and ice-like below 0 C.

Bill introduced by the Texas Senate relating to the operation and financing of the medical assistance program and other programs to provide health care benefits and services to persons in this state; providing penalties.

None

The NSTX GDC system has been improved by replacing one of the two fixed anodes with a Movable GDC Probe (MGP) anode that can be inserted 1.2 m to about midway between the inner and outer vessel walls. The purpose was to provide more spatially uniform HeGDC for improving discharge stability and reliability. The MGP has been used reliably between every discharge during the last two NSTX experimental campaigns. It has also been used to apply HeGDC assisted boronization, and more recently, HeGDC assisted lithiumization. The MGP has contributed to improved NSTX performance during long pulse and H-mode discharges, and enabled a faster discharge repetition rate.

None

Experiments at the FLASH linac at DESY have demonstrated that the higher order modes (HOMs) induced in superconducting cavities can be used to provide a variety of beam and cavity diagnostics. The centers of the cavities can be determined from the beam orbit which produces minimum power in the dipole HOM modes. The phase and amplitude of the dipole modes can be used as a high resolution beam position monitor. For most superconducting accelerators, the existing HOM couplers provide the necessary signals, and the downmix and digitizing electronics are straightforward, similar to those for a conventional BPM.

As discovered by Ohtomo and Hwang, a large sheet charge density with high mobility exists at the interface between SrTiO{sub 3} and LaAlO{sub 3}. Based on transport, spectroscopic, and oxygen-annealing experiments, we conclude that extrinsic defects in the form of oxygen vacancies introduced by the pulsed laser deposition process used by all researchers to date to make these samples is the source of the large carrier densities. Annealing experiments show a limiting carrier density. We also present a model that explains the high mobility based on carrier redistribution due to an increased dielectric constant.

We numerically construct black hole solutions corresponding to the deconfined, chirally symmetric phase of strongly coupled cascading gauge theories at various temperatures. We compute the free energy as a function of the temperature, and we show that it becomes positive below some critical temperature, indicating the possibility of a first order phase transition at which the theory deconfines and restores the chiral symmetry.