Testimony issued by the Government Accountability Office with an abstract that begins "The General Mining Act of 1872 helped foster the development of the West by giving individuals exclusive rights to mine gold, silver, copper, and other hardrock minerals on federal land. However, miners often abandoned mines, leaving behind structures, safety hazards, and contaminated land and water. Four federal agencies--the Department of the Interior's Bureau of Land Management (BLM) and Office of Surface Mining Reclamation and Enforcement (OSM), the Department of Agriculture's Forest Service, and the Environmental Protection Agency (EPA)--fund the cleanup of some of these hardrock mine sites. From 2005 through 2009, GAO issued a number of reports and testimonies on various issues related to abandoned and current hardrock mining operations. This testimony summarizes some of the key findings of these reports and testimonies focusing on the (1) number of abandoned hardrock mines, (2) availability of information collected by federal agencies on general mining activities, (3) amount of funding spent by federal agencies on cleanup of abandoned mines, and (4) value of financial assurances for mining operations on federal land managed by BLM. In 2005, GAO recommended that BLM strengthen the management of its financial assurances, which BLM generally …

Lignin is often the most difficult portion of plant biomass to degrade, with fungi generally thought to dominate during late stage decomposition. Lignin in feedstock plant material represents a barrier to more efficient plant biomass conversion and can also hinder enzymatic access to cellulose, which is critical for biofuels production. Tropical rain forest soils in Puerto Rico are characterized by frequent anoxic conditions and fluctuating redox, suggesting the presence of lignin-degrading organisms and mechanisms that are different from known fungal decomposers and oxygen-dependent enzyme activities. We explored microbial lignin-degraders by burying bio-traps containing lignin-amended and unamended biosep beads in the soil for 1, 4, 13 and 30 weeks. At each time point, phenol oxidase and peroxidase enzyme activity was found to be elevated in the lignin-amended versus the unamended beads, while cellulolytic enzyme activities were significantly depressed in lignin-amended beads. Quantitative PCR of bacterial communities showed more bacterial colonization in the lignin-amended compared to the unamended beads after one and four weeks, suggesting that the lignin supported increased bacterial abundance. The microbial community was analyzed by small subunit 16S ribosomal RNA genes using microarray (PhyloChip) and by high-throughput amplicon pyrosequencing based on universal primers targeting bacterial, archaeal, and eukaryotic communities. …

This report provides background information on the CCDBG, The Child Care and Development Block Grant, administered by the Department of Health and Human Services.

A letter report issued by the Government Accountability Office with an abstract that begins "The Children's Television Act of 1990 (CTA) and related Federal Communications Commission (FCC) rules restrict advertising during children's programs, whether aired by broadcast stations, cable operators, or satellite providers, and encourage broadcasters to air at least 3 hours per week of educational and informational programming for children (known as "core children's programming"). Broadcasters that certify in their license renewal application that they aired the minimum amount of core children's programming are eligible for expedited review. As requested, this report discusses (1) trends in children's programming, (2) FCC efforts to enforce the act, and (3) the extent to which parents value and use core children's programming. GAO analyzed FCC data, interviewed FCC and broadcast station officials, and conducted focus groups with parents."

Testimony issued by the Government Accountability Office with an abstract that begins "In May 2008, the United States enacted the Consolidated Natural Resources Act (CNRA), amending the United States' covenant with the Commonwealth of the Northern Mariana Islands (CNMI) to establish federal control of CNMI immigration in 2009, with several CNMI-specific provisions affecting foreign workers and investors during a 5-year transition period that began on November 28, 2009, and ends in 2014. One of these provisions authorizes a transitional CNMI-only work permit program that may be extended for up to 5 years at a time past 2014. In addition, CNRA amends existing U.S. immigration law to establish a joint visa waiver program for the CNMI and Guam. CNRA requires that GAO report on implementation of federal immigration law in the CNMI 2 years after enactment. In May 2010, GAO reported that the Department of Homeland Security (DHS) had established border control operations in the CNMI in 2009 but had not concluded negotiations with the CNMI government to resolve certain challenges involving access to CNMI airport space, detention facilities, and databases. GAO also noted that DHS had not yet finalized regulations needed to fully implement CNRA provisions affecting foreign workers, visitors, …

Correspondence issued by the Government Accountability Office with an abstract that begins "In 1996, the Army began development of the Army Workload and Performance System (AWPS) at the direction of the House National Security Committee. AWPS is a capstone information system that receives data from other systems, primarily the Logistics Modernization Program (LMP), and produces management reports and decision support tools intended to assist the Army in linking its industrial facility workload demands to its workforce requirements. AWPS defines workload demands in terms of the amount of work projected to be completed in an 8-hour period and labels each such period as one "resource." Based on the calculation of these resources, reports from AWPS are designed to aid decision makers in determining workforce needs. In 1998, the House National Security Committee directed that the Army provide the committee with a long-range master plan to implement AWPS. The committee also directed that we provide a report on the Army's plan to implement AWPS, and in 1999 we recommended that the Army strengthen its oversight of AWPS development efforts. In 2001, Congress enacted statutory requirements related to the use and implementation of AWPS. Specifically, Section 346 of the National Defense Authorization Act …

Testimony issued by the Government Accountability Office with an abstract that begins "Since 2001, strategic human capital management for federal agencies has been on GAO's high-risk list. Although some progress has been made, GAO reported in February 2011 that the area remains on the high-risk list because of the need for agencies, including DOD, to address current and emerging skill gaps that are undermining their ability to fulfill their missions. The Department of Defense (DOD) had about 718,000 civilians as of March 2010, which includes its senior leader and acquisition workforces. DOD has noted that approximately 30 percent of its civilian workforce--and 90 percent of its senior leader workforce--will be eligible to retire by March 31, 2015. The National Defense Authorization Act for Fiscal Year 2010 required (1) DOD to report on plans for its overall civilian, senior leader, and acquisition workforces for 2009 through 2012; (2) DOD to address a series of legislative requirements for each workforce; and (3) GAO to review and report on these plans. DOD has informed GAO that it expects to issue its next set of plans in September 2011. In anticipation of these plans, it is helpful to understand key issues identified during GAO's …

A statement of record issued by the Government Accountability Office with an abstract that begins "This testimony provides information on selected federal agencies' reported funding and staff resources associated with implementing the Dodd-Frank Wall Street Reform and Consumer Protection Act (Dodd-Frank Act) in 2010, 2011, and 2012. The recent financial crisis is considered to be the worst since the Great Depression, and data from the Board of Governors of the Federal Reserve System (Federal Reserve) show that it resulted in the loss of trillions of dollars in household wealth. Congress passed the Dodd-Frank Act in 2010 in response to the ongoing crisis, including in the legislation numerous provisions intended to strengthen oversight of insured depository institutions and nonbank financial companies and to consolidate consumer protection responsibilities that had been fragmented across multiple agencies. The Dodd-Frank Act also authorized the creation of new offices and agencies to implement the reforms. The extensive reforms and the need for new offices to implement them have raised questions about the potential costs to agencies of complying with the provisions. The testimony today focuses on (1) the agencies' funding estimates and the sources of funds associated with implementing the Dodd-Frank Act, (2) agencies' estimates of …

The technology on the large overlap InGaN QWs developed in this program is currently implemented in commercial technology in enhancing the internal quantum efficiency in major LED industry in US and Asia. The scientific finding from this work supported by the DOE enabled the implementation of this step-like staggered quantum well in the commercial LEDs.

Testimony issued by the Government Accountability Office with an abstract that begins "This testimony discusses our prior work on the Environmental Protection Agency's (EPA) Integrated Risk Information System (IRIS) program and database. IRIS is one of the most significant tools that EPA has developed to support its mission to protect people and the environment from harmful chemical exposures. The IRIS database contains EPA's scientific position on the potential human health effects that may result from exposure to more than 540 chemicals in the environment and is a critical component of EPA's capacity to support its mission. EPA created IRIS in 1985 to help the agency develop consensus opinions within the agency about the health effects from chronic exposure to chemicals. Over time, the importance of the program has increased as EPA program offices, state and local environmental programs, and some international regulatory bodies have increasingly relied on IRIS health risk assessment information to support risk-based decision making to protect public health and the environment. As the IRIS database became more widely used and accepted, EPA took steps, beginning in the early 1990s, to improve and maintain the IRIS program and database. Over the years, the agency has implemented a variety …

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Daily publication of the U.S. Office of the Federal Register contains rules and regulations, proposed legislation and rule changes, and other notices, including "Presidential proclamations and Executive Orders, Federal agency documents having general applicability and legal effect, documents required to be published by act of Congress, and other Federal agency documents of public interest" (p. ii). Table of Contents starts on page iii.

Oxy-fuel fireside research goals are: (1) determine the effect of oxyfuel combustion on fireside corrosion - flue gas recycle choice, staged combustion ramifications; and (2) develop methods to use chromia solubility in ash as an ash corrosivity measurement - synthetic ashes at first, then boiler and burner rig ashes.

There is a considerable interest to develop new time-of-flight detectors using, for example, micro-channel-plate photodetectors (MCP-PMTs). The question we pose in this paper is if new waveform digitizer ASICs, such as the WaveCatcher and TARGET, operating with a sampling rate of 2-3 GSa/s can compete with 1GHz BW CFD/TDC/ADC electronics. We have performed a series of measurements with these waveform digitizers coupled to MCP-PMTs operating at low gain and with a signal equivalent to {approx}40 photoelectrons. The tests were done with a laser diode on detectors operating under the same condition used previously in SLAC and Fermilab beam tests. Our test results indicate that one can achieve similar resolution with both methods. Although the commercial CFD-based electronics does exist and performs very well, it is difficult to implement on a very large scale, and therefore the custom electronics is needed. In addition, the analog delay line requirement makes it very difficult to incorporate CFD discriminators in ASIC designs.

This report examines current political and economic conditions in Honduras as well as issues in Honduran-U.S. relations.

Analytical estimate of the number of muons that must decay in the straight section of a storage ring to produce a neutrino & anti-neutrino beam of sufficient intensity to facilitate cross-section measurements with a statistical precision of 1%. As we move into the era of precision long-baseline {nu}{sub {mu}} {yields} {nu}{sub e} and {bar {nu}}{sub {mu}} {yields} {bar {nu}}{sub e} measurements there is a growing need to precisely determine the {nu}{sub e} and {bar {nu}}{sub e} cross-sections in the relevant energy range, from a fraction of 1 GeV to a few GeV. This will require {nu}{sub e} and {bar {nu}}{sub e} beams with precisely known fluxes and spectra. One way to produce these beams is to use a storage ring with long straight sections in which muon decays ({mu}{sup -} {yields} e{sup -}{nu}{sub {mu}}{bar {nu}}{sub e} if negative muons are stored, and {nu}{sup +} {yields} e{sup +}{nu}{sub e}{bar {nu}}{sub {mu}} if positive muons are stored) produce the desired beam. The challenge is to capture enough muons in the ring to obtain useful neutrino and anti-neutrino fluxes. Early proposals to use a muon storage ring for neutrino oscillation experiments were based upon injecting 'high energy' charged pions into the ring which …

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Testimony issued by the Government Accountability Office with an abstract that begins "A long-standing goal of Congress has been to improve the performance and transparency of the federal government through the use of information technology (IT). The Office of Management and Budget (OMB) plays a key role in improving the transparency and oversight of federal investments. Given the size of these investments and their importance to the health, economy, and security of the nation, it is critical for OMB and federal agencies to provide appropriate program oversight and ensure adequate transparency. GAO was asked to testify on IT systems used by federal agencies to report spending. To prepare this statement, GAO drew on previously published work on two government reporting mechanisms--an IT Dashboard and USAspending.gov. These public Web sites were deployed by OMB in June 2009 and December 2007, respectively. The Dashboard provides detailed information on approximately 800 major federal IT investments, including assessments of these investments' performance against cost and schedule targets (referred to as ratings). USAspending.gov contains data on federal awards (e.g., contracts, loans, and grants) across the federal government."

This brief discusses the major issues for Congress which include whether to increase inland waterway funding in the future (and by what amount); the appropriate type of revenue stream (e.g., fuel taxes or lockage fees) for the user-required portion of these projects; division of the cost-share responsibilities between the federal government and commercial users (e.g., 50/50 or some other division); and whether to initiate process-based recommendations that some argue will improve the delivery and efficiency of Corps-led IWTF projects.

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Since 2003, MicrobesOnline (http://www.microbesonline.org) has been providing a community resource for comparative and functional genome analysis. The portal includes over 1000 complete genomes of bacteria, archaea and fungi and thousands of expression microarrays from diverse organisms ranging from model organisms such as Escherichia coli and Saccharomyces cerevisiae to environmental microbes such as Desulfovibrio vulgaris and Shewanella oneidensis. To assist in annotating genes and in reconstructing their evolutionary history, MicrobesOnline includes a comparative genome browser based on phylogenetic trees for every gene family as well as a species tree. To identify co-regulated genes, MicrobesOnline can search for genes based on their expression profile, and provides tools for identifying regulatory motifs and seeing if they are conserved. MicrobesOnline also includes fast phylogenetic profile searches, comparative views of metabolic pathways, operon predictions, a workbench for sequence analysis and integration with RegTransBase and other microbial genome resources. The next update of MicrobesOnline will contain significant new functionality, including comparative analysis of metagenomic sequence data. Programmatic access to the database, along with source code and documentation, is available at http://microbesonline.org/programmers.html.

Cells use feedback to implement a diverse range of regulatory functions. Building synthetic feedback control systems may yield insight into the roles that feedback can play in regulation since it can be introduced independently of native regulation, and alternative control architectures can be compared. We propose a model for microbial biofuel production where a synthetic control system is used to increase cell viability and biofuel yields. Although microbes can be engineered to produce biofuels, the fuels are often toxic to cell growth, creating a negative feedback loop that limits biofuel production. These toxic effects may be mitigated by expressing efflux pumps that export biofuel from the cell. We developed a model for cell growth and biofuel production and used it to compare several genetic control strategies for their ability to improve biofuel yields. We show that controlling efflux pump expression directly with a biofuel-responsive promoter is a straight forward way of improving biofuel production. In addition, a feed forward loop controller is shown to be versatile at dealing with uncertainty in biofuel production rates.

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Two detailed, unit-cell models, a transverse fin design and a longitudinal fin design, of a combined hydride bed and heat exchanger are developed in COMSOL{reg_sign} Multiphysics incorporating and accounting for heat transfer and reaction kinetic limitations. MatLab{reg_sign} scripts for autonomous model generation are developed and incorporated into (1) a grid-based and (2) a systematic optimization routine based on the Nelder-Mead downhill simplex method to determine the geometrical parameters that lead to the optimal structure for each fin design that maximizes the hydrogen stored within the hydride. The optimal designs for both the transverse and longitudinal fin designs point toward closely-spaced, small cooling fluid tubes. Under the hydrogen feed conditions studied (50 bar), a 25 times improvement or better in the hydrogen storage kinetics will be required to simultaneously meet the Department of Energy technical targets for gravimetric capacity and fill time. These models and methodology can be rapidly applied to other hydrogen storage materials, such as other metal hydrides or to cryoadsorbents, in future work.