Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.

Correspondence issued by the General Accounting Office with an abstract that begins "A fundamental principle of aviation safety is the need to maintain adequate separation between aircraft and to ensure that aircraft maintain a safe distance from terrain, obstructions, and airspace that is not designated for routine air travel. Air traffic controllers employ separation rules and procedures that define safe separation in the air and on the ground.1 An operational error occurs when the separation rules and procedures are not followed due to equipment or human error. Data maintained by the Federal Aviation Administration (FAA) indicate that a very small number of operational errors occur in any given year--on average about three operational errors per day occurred in fiscal year 2002. However, some of these occurrences can pose safety risks by directing aircraft onto converging courses and, potentially, midair collisions. Congress asked us to provide information on FAA's data on operational errors and whether this data can be used to identify types of air traffic control facilities with greater safety risks. Specifically, we were asked to (1) determine what is known about the reliability and validity of the data that FAA maintains on operational errors and (2) identify whether comparisons …

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.

Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.

Semiweekly newspaper from Brady, Texas that includes local, state, and national news along with advertising.

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High-resolution computer simulations produce large volumes of data. As a first step in the analysis of these data, supervised machine learning techniques can be used to retrieve objects similar to a query that the user finds interesting. These objects may be characterized by a large number of features, some of which may be redundant or irrelevant to the similarity retrieval problem. This paper presents a comparison of six dimensionality reduction algorithms on data from a fluid mixing simulation. The objective is to identify methods that efficiently find feature subsets that result in high accuracy rates. Our experimental results with single- and multi-resolution data suggest that standard forward feature selection produces the smallest feature subsets in the shortest time.

This project was designed to characterize the available multidentate ligand species and metal ion complexes of iron, strontium and manganese formed with the parent chelators, complexing agents and their fragment products. Complex identification was applied to AN-102 and AN-107 filtrate simulants for Hanford waste after an oxidation reaction with sodium permanganate to create a freshly precipitated manganese dioxide solid for adsorption of transuranic elements. Separation efficiency of different ligands was investigated based on the exchange capability of different ion exchange and ion exclusion analytical columns including Dionex IonPac AS-5A, AS-10, AS-11 and AS-6. The elution programs developed with different mobile phase concentrations were based on the change in the effective charge of the anionic species and therefore the retention on the stationary phase. In the present work, qualitative and quantitative assessments of multidentate ligands were investigated. Identification methods for the metal ion complexes responsible for solubilizing Fe, Mn and Sr were applied to aged and fresh simulant waste filtrates. Although concentration measurements of both fresh and 3-week aged filtrates showed that the degradation process occurs mainly due to the harsh chemical environment, it was found that the concentration of iron and manganese did not increase, within the error of the …

Under the federal system in the United States, the states and localities traditionally have held the major responsibility for prevention and control of crime and maintenance of order. For most of the Republic’s history, “police powers” in the broad sense were reserved to the states under the Tenth Amendment to the Constitution. Many still hold that view, but others see a string of court decisions in recent decades as providing the basis for a far more active federal role. Several bills are discussed in this report that address issues related to crime, juvenile justice, and Congress’ evolving role in crime legislation.

News release about the approval of DART's budget for FY 2004, which includes many cuts to lower costs, including a one-year delay in completion of a planned rail expansion, due to decreases in revenue from sales taxes due to an economic downturn.

Testimony issued by the General Accounting Office with an abstract that begins "Electronic government (e-government) refers to the use of information technology (IT), including Web-based Internet applications, to enhance access to and delivery of government information and services, as well as to improve the internal efficiency and effectiveness of the federal government. The Office of Personnel Management (OPM) is managing five e-government initiatives whose goal is to transform the way OPM oversees the government's human capital functions. These 5 initiatives are among 25 identified by the Office of Management and Budget (OMB) as foremost in the drive toward egovernment transformation. The 25 initiatives have ambitious goals, including eliminating redundant, nonintegrated business operations and systems and improving service to citizens by an order of magnitude. Achieving these results, according to OMB, could produce billions of dollars in savings from improved operational efficiency. In today's testimony, among other things, GAO identifies the challenges facing OPM as it moves forward in implementing the five human capital initiatives."

Concert presented at the UNT College of Music Winspear Performance Hall.

This issue brief views reorganization and management as involving the alteration of the program administrative structure and operations of the executive branch for reasons of efficiency, economy, and direction. The underlying issue is who reorganizes or sets management policy—Congress or the President— and by what authority and, also, for what purpose?

The mechanisms by which transparent dielectrics damage when exposed to high power laser radiation has been of scientific and technological interest since the invention of the laser. In this work, a set of three experiments are presented which provide insight into the damage initiation mechanisms and the processes involved in laser-induced damage. Using an OPO (optical parametric oscillator) laser, we have measured the damage thresholds of deuterated potassium dihydrogen phosphate (DKDP) from the near ultraviolet into the visible. Distinct steps, whose width is of order K{sub b}T, are observed in the damage threshold at photon energies associated with the number of photons (3{yields}2 or 4{yields}3) needed to promote a ground state electron across the energy gap. The wavelength dependence of the damage threshold suggests that a primary mechanism for damage initiation in DKDP is a multi-photon process in which the order is reduced through excited defect state absorption. In-situ fluorescence microscopy, in conjunction with theoretical calculations by Liu et al., has been used to establish that hydrogen displacement defects are potentially responsible for the reduction in the multi-photon cross-section. During the damage process, the material absorbs energy from the laser pulse and produces an ionized region that gives rise to …

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.

Testimony issued by the General Accounting Office with an abstract that begins "USAID oversees humanitarian and economic assistance--an integral part of the U.S. global security strategy--to more than 160 countries. GAO recommended in 1993 that USAID develop a comprehensive workforce plan; however, human capital management continues to be a high-risk area for the agency. GAO was asked to testify on how changes in USAID's workforce over the past 10 years have affected its ability to deliver foreign aid, the agency's progress in implementing a strategic workforce planning system, and whether its reported operating expenses reflect the full costs of delivering foreign aid."

A letter report issued by the General Accounting Office with an abstract that begins "Over the past decade, a series of devastating and deadly wildland fires has burned millions of acres of federal forests, grasslands, and deserts each year, requiring federal land management agencies to spend hundreds of millions of dollars to fight them. GAO was asked to assess opportunities to improve the way agencies manage fires through the use of geospatial information technologies, specifically, to (1) identify key geospatial information technologies for addressing different aspects of managing wildland fires, (2) summarize key challenges to the effective use of geospatial technologies in managing wildland fires, and (3) identify national opportunities to improve the effective use of geospatial technologies."

This report discusses the funding authorizations for programs in the Higher Education Act (HEA). This legislation, administered by the U.S. Department of Education (ED), authorizes the federal government’s major student aid programs, as well as other significant initiatives.

Silica membranes were prepared using a novel technique of catalyzed-atomic layer deposition of silica within a mesoporous matrix. Pyridine was used to catalyze the silicon chloride attachment to the hydroxylated silica surface at room temperature. This half-reaction was followed by the hydration of the surface with water regenerating surface hydroxyls and completing one reaction cycle. The technique resulted in the self-limited pore size reduction of the mesoporous matrix to pore sizes near 1 nm. The self-limited reaction was presumed to be the exclusion of the large catalyst molecule from the pore entrance. In addition to pore size reduction, viscous flow defects were repaired without significantly reducing overall porosity of the membrane. In addition, we investigated the ability of amine-functionalization to enhance the CO{sub 2} transport in silica membranes. Specifically, we examined three synthesis techniques for functionalizing silica membranes with amino groups that resulted in different surface chemistries of the silica membranes. These differences were correlated with changes in the CO{sub 2} facilitation characteristics. It was found that high loadings of amino groups where interaction with the silica surface was minimized promoted the highest CO{sub 2} transport.

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Zero-valent iron is cheap, environmentally innocuous, and effective at reducing chlorinated organics. It has, as a result, become a popular candidate for remediating aquifers contaminated with trichloroethylene and other halogenated pollutants. In this paper, we discuss one such system, where iron nanoparticles are synthesized and incorporated into polyvinyl alcohol membranes, forming water-permeable barriers to these pollutants. These barriers are tested against a variety of contaminants, including carbon tetrachloride, copper, and chromate.

Over the past decade, liquefaction assessments have been performed for many existing and planned critical facilities at the Department of Energy's Savannah River Site (SRS). The assessments incorporated site-specific Cyclic Resistance Ratio (CRR) and K with the use of the cone penetration test (CPT). The SRS-specific CRR and K were developed from laboratory testing of carefully collected samples. Test results show SRS soils have increased liquefaction resistance of two to three times when compared to standard literature for Holocene-age deposits. This increase in strength can be attributed to many factors such as aging and overconsolidation. The purpose of this paper is to discuss liquefaction methodologies used at the SRS. Specifically, (1) use of the CPT and correlations of CPT-derived results with that of high-quality undisturbed samples; (2) aging; and (3) K vertical confining stress factor.