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525 Matching Results

Start Over Decade 2000-2009 Month July Day 19th

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(open access)

Flood Insurance: Information on the Financial Condition of the National Flood Insurance Program

Testimony issued by the General Accounting Office with an abstract that begins "Floods have been, and continue to be, the most destructive natural hazard in terms of economic loss to the nation, according to the Federal Emergency Management Agency. From fiscal years 1969 through 2000, the National Flood Insurance Program--a major federal effort to provide flood disaster assistance paid about $10 billion in insurance claims, primarily from premiums collected from program policy holders. This testimony discusses (1) the financial results of the program's operations since fiscal year 1993, (2) the actuarial soundness of the program, and (3) the impact of repetitive losses and FEMA's strategies for reducing those losses."

Date: July 19, 2001

Creator: United States. General Accounting Office.

Object Type: Text

System: The UNT Digital Library

COBRA File: Conversion of Great Lakes Naval Hospital

Department of Defense Clearinghouse Response: DoD Clearinghouse response to a letter from the BRAC Commission requesting a separate and discrete COBRA run depicting the 20-year net present value (costs) or savings for the conversion of the Great Lakes Naval Hospital to an outpatient clinic and ambulatory surgery center (a component of Recommendation Med-12).

Date: July 19, 2005

Creator: United States. Department of Defense.

Object Type: Dataset

System: The UNT Digital Library

(open access)

Fish and Wildlife Service: Use of Federal Aid Programs' Administrative Funds

Testimony issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed the Fish and Wildlife Service's (FWS) management and oversight of the administrative funds associated with the Wildlife Restoration Program and, to a lesser extent, with the Sport Fish Restoration Program."

Date: July 19, 2000

Creator: United States. General Accounting Office.

Object Type: Text

System: The UNT Digital Library

(open access)

Medicare Home Health Agencies: Weaknesses in Federal and State Oversight Mask Potential Quality Issues

A letter report issued by the General Accounting Office with an abstract that begins "The 6,900 Home Health Agencies (HHAs) that serve Medicare beneficiaries must meet federal requirements, known as conditions of participation (COP), to ensure that they have the appropriate staff, are following the plan of care specified by a physician, maintain medical records to document the care provided, and periodically reassess each patient's condition. Although nationwide surveys done at HHAs since 1998 have identified a small proportion of agencies with serious deficiencies, the extent of the problem may be understated, and dangerous situations affecting home health patients may occur more often than documented. Shortcomings in the survey process and inconsistencies in state surveys make it difficult to assess the quality of care delivered and may mask potential problems. The ability to lodge complaints about an HHA and have them resolved promptly is important to protecting patient health and safety. HHA oversight by the Centers for Medicare and Medicaid Services (CMS) has been too limited to identify the problems GAO found in the survey process. CMS does not review state compliance with requirements for conducting HHA surveys, such as whether HHAs with COP-level deficiencies are surveyed annually rather than …

Date: July 19, 2002

Creator: United States. General Accounting Office.

Object Type: Report

System: The UNT Digital Library

(open access)

Purchase Cards: Control Weaknesses Leave DHS Highly Vulnerable to Fraudulent, Improper, and Abusive Activity

Testimony issued by the Government Accountability Office with an abstract that begins "In the wake of the 2005 hurricanes in the Gulf Region, GAO and the Department of Homeland Security Office of Inspector General (DHS OIG) initiated a number of audits and investigations addressing the federal government's response to those events. Department of Homeland Security (DHS) cardholders made thousands of transactions related to hurricane rescue and relief operations. GAO, working with DHS OIG, interviewed DHS personnel and reviewed purchase card policies and procedures to assess the control environment. GAO and DHS OIG conducted statistical tests from a random sample of transactions and performed data mining on all DHS purchase card transactions for a 5-month period beginning in June 2005. GAO and DHS OIG looked at all transactions in this period because the database did not distinguish hurricane related from routine purchases. GAO and DHS OIG used the testing results to determine the extent of control weaknesses and identify instances of fraud, waste, and abuse. This testimony addresses whether (1) DHS's control environment and management of purchase card usage were effective; (2) DHS's key internal control activities operated effectively and provided reasonable assurance that purchase cards were used appropriately; and (3) …

Date: July 19, 2006

Creator: United States. Government Accountability Office.

Object Type: Text

System: The UNT Digital Library

(open access)

Services Provided to Victims of Domestic Violence, Sexual Assault, Dating Violence, and Stalking

Correspondence issued by the Government Accountability Office with an abstract that begins "Historically, domestic violence, sexual assaults, and stalking incidents have often been ignored by society and treated as private family matters. However, in 1984, Congress passed and the President signed the Family Violence Prevention and Services Act (FVPSA) to, among other things, help prevent domestic violence and provide shelter and related assistance for victims. Grants funded under the act are administered by the Department of Health and Human Services' (HHS) Administration for Children and Families and are available to states, Indian tribal governments and organizations, state domestic violence coalitions, and public and private nonprofit entities. In response to continued concerns about domestic violence as well as sexual assault and stalking incidents, Congress passed and the President signed the Violence Against Women Act (VAWA) in 1994. VAWA created new federal criminal laws and established additional grant programs within HHS and the Department of Justice (DOJ) for state, local, and Indian tribal governments and nonprofit organizations. These grant programs have various purposes, such as providing funding for direct services including emergency shelter, counseling, and legal services for victims of domestic violence, sexual assaults, and stalking across all segments of the population. …

Date: July 19, 2007

Creator: United States. Government Accountability Office.

Object Type: Text

System: The UNT Digital Library

(open access)

[Memorandum of BRAC Meeting with Letterkenny Army Depot Community - July 19, 2005]

Memorandum of a meeting between the Defense Base Closure and Realignment Commission (BRAC) and the Letterkenny Army Depot Community. The meeting regarded recommended moves to the depot.

Date: July 19, 2005

Creator: United States. Defense Base Closure and Realignment Commission.

Object Type: Letter

System: The UNT Digital Library

(open access)

Letter from Will-Matthis Dunn to the BRAC Commission

Community Correspondence - Letter from Will-Matthis Dunn, a concerned citizen, to the BRAC Commission.

Date: July 19, 2005

Creator: unknown

Object Type: Letter

System: The UNT Digital Library

(open access)

[Letter from Henry E. Brown, Jr. to Anthony Principi - July 19, 2005]

Letter from Henry Brown, Jr. to Anthony Principi wherein Brown submits his rationale behind keeping the Charleston Defense Finance & Accounting Service facility open.

Date: July 19, 2005

Creator: Brown, Henry E., Jr.

Object Type: Letter

System: The UNT Digital Library

(open access)

STRANGENESS PRODUCTION AS A FUNCTION OF SYSTEM SIZE AND ENERGY OF RHIC.

In this paper we report on strangeness measurements in p+p, Au+Au and Cu+Cu collisions at different energies in the STAR detector at RHIC. We will focus on two momentum regions in particular: Firstly we look at strangeness enhancement in A+A collisions with respect to p+p. These yields are dominated by low transverse momentum. We compare the enhancements from Au+Au and Cu+Cu data at {radical}s{sub NN} = 200 GeV with Pb+Pb data at {radical}s{sub NN} = 17.2 GeV and find that the enhancement does not scale with N{sub part} as expected, but rather scales with N{sub part}{sup 1/3}, where N{sub part} represents the number of participants; We then examine {Lambda}/K{sub S}{sup 0} ratios at intermediate transverse momentum in both Au+Au and Cu+Cu data where we find a greater enhancement in Cu+Cu compared to Au+Au data when we compare integrated ratios between 1.5 < p{sub T} < 3.5 GeV/c.

Date: July 19, 2007

Creator: LAMONT,M.

Object Type: Article

System: The UNT Digital Library

(open access)

New cubic phase of lithium nitride to 200 GPa

We present a new cubic ({gamma}) Li{sub 3}N phase discovered above 40({+-}5) GPa. Structure and electronic bands are examined at high pressure with synchrotron x-ray diffraction and inelastic x-ray scattering in a diamond anvil cell, and also with first-principles calculations. We observe a dramatic band-gap widening and volume collapse at the phase transition. {gamma}-Li{sub 3}N remains extremely stable and ionic to 200 GPa, with predicted metallization near 8 TPa. The high structural stability, wide band-gap and simple electronic structure of {gamma}-Li{sub 3}N are analogous to that of such lower valence closed-shell solids as NaCl, MgO and Ne, meriting its use as a low-Z internal pressure standard.

Date: July 19, 2005

Creator: Lazicki, A.; Maddox, B.; Evans, W.; Yoo, C. S.; McMahan, A. K.; Pickett, W. E. et al.

Object Type: Article

System: The UNT Digital Library

(open access)

Epigenetic reversion of breast carcinoma phenotype is accompanied by DNA sequestration

The importance of microenvironment and context in regulation of tissue-specific genes is finally well established. DNA exposure to, or sequestration from, nucleases can be used to detect differences in higher order chromatin structure in intact cells without disturbing cellular or tissue architecture. To investigate the relationship between chromatin organization and tumor phenotype, we utilized an established 3-D assay where normal and malignant human breast cells can be easily distinguished by the morphology of the structures they make (acinus-like vs tumor-like, respectively). We show that these phenotypes can be distinguished also by sensitivity to AluI digestion where the malignant cells are resistant to digestion relative to non-malignant cells. Reversion of the T4-2 breast cancer cells by either cAMP analogs, or a phospatidylinositol 3-kinase (P13K) inhibitor not only reverted the phenotype, but also the chromatin sensitivity to AluI. By using different cAMP-analogs, we show that the cAMP-induced phenotypic reversion, polarization, and shift in DNA organization act through a cAMP-dependent-protein-kinase A-coupled signaling pathway. Importantly, inhibitory antibody to fibronectin also reverted the malignant phenotype, polarized the acini, and changed chromatin sequestration. These experiments show not only that modifying the tumor microenvironment can alter the organization of tumor cells but also that architecture of the …

Date: July 19, 2006

Creator: Sandal, Tone; Valyi-Nagy, Klara; Spencer, Virginia A.; Folberg,Robert; Bissell, Mina J. & Maniotis, Andrew J.

Object Type: Article

System: The UNT Digital Library

(open access)

Optical Fiber Sensor Instrumentation for Slagging Coal Gasifiers

Coal gasifier is one of the most promising solutions for clean fossil energy. Refractory thickness monitoring and online real-time temperature measurement is needed for improved reliability and advanced process control for current and future generation power plants. The objective of this program is to design and implement an optical fiber based sensing system that could potentially be used to monitor refractory wall thickness and temperature inside a coal gasifier. For the thickness monitoring, the system should be able to operate at temperatures up to 1000 C. For this temperature range, silica fiber can still work so it is chosen for the sensor design. The measurement is based on a photon counting optical time domain reflectometer. A narrow light pulse is launched into a silica fiber which could be embedded into the gasifier refractory wall, and is partially reflected by the far end of the fiber. The time of flight of the light pulse in the fiber then gives an indication of the position of the fiber end, which is a function of the wall thickness when the fiber is embedded. Results obtained show a measurement accuracy of {+-}2cm in environment of 1000 C with a saw cut fiber end. When …

Date: July 19, 2008

Creator: Wang, Anbo & Cooper, Kristie

Object Type: Report

System: The UNT Digital Library

(open access)

General Corrosion and Passive Film Stability

This report summarizes both general corrosion of Alloy 22 from 60 to 220 C and the stability of the passive (oxide) film from 60 to 90 C over a range of solution compositions that are relevant to the in-drift chemical environment at the waste package surface. The general corrosion rates were determined by weight-loss measurements in a range of complex solution compositions representing the products of both the evaporation of seepage water and also the deliquescence of dust previously deposited on the waste canisters. These data represent the first weight-loss measurements performed by the program at temperatures above 90 C. The low corrosion rates of Alloy 22 are attributed to the protective oxide film that forms at the metal surface. In this report, changes in the oxide film composition are correlated with weight loss at the higher temperatures (140-220 C) where film characterization had not been previously performed. The stability of the oxide film was further analyzed by conducting a series of electrochemical tests in progressively more acidic solutions to measure the general corrosion rates in solutions that mimic crevice or pit environments.

Date: July 19, 2005

Creator: Orme, C; Gray, J; Hayes, J; Wong, L; Rebak, R; Carroll, S et al.

Object Type: Report

System: The UNT Digital Library

(open access)

History and Evolution of Control Banding: A Review

Control Banding (CB) strategies offer simplified solutions for controlling worker exposures to constituents often encountered in the workplace. The original CB model was developed within the pharmaceutical industry; however, the modern movement involves models developed for non-experts to input hazard and exposure potential information for bulk chemical processes, receiving control advice as a result. The CB approach utilizes these models for the dissemination of qualitative and semi-quantitative risk assessment tools being developed to complement the traditional industrial hygiene model of air sampling and analysis. It is being applied and tested in small and medium size enterprises (SMEs) within developed countries and industrially developing countries; however, large enterprises (LEs) have also incorporated these strategies within chemical safety programs. Existing research of the components of the most available CB model, the Control of Substances Hazardous to Health (COSHH) Essentials, has shown that exposure bands do not always provide adequate margins of safety, that there is a high rate of under-control errors, that it works better with dusts than with vapors, that there is an inherent inaccuracy in estimating variability, and that when taken together the outcomes of this model may lead to potentially inappropriate workplace confidence in chemical exposure reduction in some …

Date: July 19, 2006

Creator: Zalk, D. & Nelson, D.

Object Type: Article

System: The UNT Digital Library

(open access)

Performance and scaling of locally-structured grid methods forpartial differential equations

In this paper, we discuss some of the issues in obtaining high performance for block-structured adaptive mesh refinement software for partial differential equations. We show examples in which AMR scales to thousands of processors. We also discuss a number of metrics for performance and scalability that can provide a basis for understanding the advantages and disadvantages of this approach.

Date: July 19, 2007

Creator: Colella, Phillip; Bell, John; Keen, Noel; Ligocki, Terry; Lijewski, Michael & Van Straalen, Brian

Object Type: Article

System: The UNT Digital Library

(open access)

On-Line Coolant Chemistry Analysis

Impurities in the gas coolant of the space nuclear power plant (SNPP) can provide valuable indications of problems in the reactor and an overall view of system health. By monitoring the types and amounts of these impurities, much can be implied regarding the status of the reactor plant. However, a preliminary understanding of the expected impurities is important before evaluating prospective detection and monitoring systems. Currently, a spectroscopy system is judged to hold the greatest promise for monitoring the impurities of interest in the coolant because it minimizes the number of entry and exit points to the plant and provides the ability to detect impurities down to the 1 ppm level.

Date: July 19, 2006

Creator: Bachman, LM

Object Type: Report

System: The UNT Digital Library