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Onset of Ferrielectricity and the Hidden Nature of Nanoscale Polarization in Ferroelectric Thin Films (open access)

Onset of Ferrielectricity and the Hidden Nature of Nanoscale Polarization in Ferroelectric Thin Films

Article on the onset of ferrielectricity and the hidden nature of nanoscale polarization in ferroelectric thin films.
Date: September 5, 2008
Creator: Nuñez, Matías & Buongiorno Nardelli, Marco
Object Type: Article
System: The UNT Digital Library
Health-Care-Associated Infections in Hospitals: An Overview of State Reporting Programs and Individual Hospital Initiatives to Reduce Certain Infections (open access)

Health-Care-Associated Infections in Hospitals: An Overview of State Reporting Programs and Individual Hospital Initiatives to Reduce Certain Infections

A letter report issued by the Government Accountability Office with an abstract that begins "Health-care-associated infections (HAI) are infections that patients acquire while receiving treatment for other conditions. Normally treated with antimicrobial drugs, HAIs are a growing concern as exposure to multidrug-resistant organisms (MDRO) becomes more common. Infections caused by MDROs, such as methicillin-resistant Staphylococcus aureus (MRSA), lead to longer hospital stays, higher treatment costs, and higher mortality. In response to demands for more public information on HAIs, some states began to establish HAI public reporting systems. The federal Centers for Disease Control and Prevention (CDC) developed a system--the National Healthcare Safety Network (NHSN)--to collect HAI data from hospitals and some states have chosen to use it for their programs. In addition, some hospitals have adopted initiatives to reduce MRSA by routinely testing some or all patients and isolating those who test positive for MRSA from contact with other patients. GAO was asked to examine (1) the design and implementation of state HAI public reporting systems, (2) the initiatives hospitals have undertaken to reduce MRSA infections, and (3) the experience of certain early-adopting hospitals in overcoming challenges to implement such initiatives. GAO interviewed state officials, reviewed documents, and surveyed or …
Date: September 5, 2008
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Medicare Part D Low-Income Subsidy: Assets and Income Are Both Important in Subsidy Denials, and Access to State and Manufacturer Drug Programs Is Uneven (open access)

Medicare Part D Low-Income Subsidy: Assets and Income Are Both Important in Subsidy Denials, and Access to State and Manufacturer Drug Programs Is Uneven

A letter report issued by the Government Accountability Office with an abstract that begins "To help defray the cost of prescription drugs for beneficiaries with limited means, the Medicare Prescription Drug, Improvement, and Modernization Act of 2003 (MMA) included the low-income subsidy (LIS) in the Part D prescription drug insurance program. To qualify for the LIS, beneficiaries must be enrolled in a Part D plan and their assets and income must be less than the thresholds established by the law. Part D is administered by the Centers for Medicare & Medicaid Services (CMS), and the Social Security Administration (SSA) administers the eligibility determination for the LIS. The MMA directed GAO to compare the utilization of and access to Part D prescription drugs among beneficiaries who received the LIS with those who were denied it because of the amount of their assets. This report focuses on beneficiaries' access to prescription drugs by examining (1) the importance of assets and income in LIS denials in 2006 and 2007, and (2) state and manufacturer programs providing access to prescription drugs for Medicare beneficiaries. To do this, GAO analyzed data from SSA, reviewed information on state and drug manufacturer pharmaceutical programs, and interviewed officials …
Date: September 5, 2008
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Abstract: Contaminant Travel Times From the Nevada Test Site to Yucca Mountain: Sensitivity to Porosity (open access)

Abstract: Contaminant Travel Times From the Nevada Test Site to Yucca Mountain: Sensitivity to Porosity

Yucca Mountain (YM), Nevada, has been proposed by the U.S. Department of Energy as a geologic repository for spent nuclear fuel and high-level radioactive waste. In this study, we investigate the potential for groundwater advective pathways from underground nuclear testing areas on the Nevada Test Site (NTS) to the YM area by estimating the timeframe for advective travel and its uncertainty resulting from porosity value uncertainty for hydrogeologic units (HGUs) in the region. We perform sensitivity analysis to determine the most influential HGUs on advective radionuclide travel times from the NTS to the YM area. Groundwater pathways and advective travel times are obtained using the particle tracking package MODPATH and flow results from the Death Valley Regional Flow System (DVRFS) model by the U.S. Geological Survey. Values and uncertainties of HGU porosities are quantified through evaluation of existing site porosity data and expert professional judgment and are incorporated through Monte Carlo simulations to estimate mean travel times and uncertainties. We base our simulations on two steady state flow scenarios for the purpose of long term prediction and monitoring. The first represents pre-pumping conditions prior to groundwater development in the area in 1912 (the initial stress period of the DVRFS model). …
Date: September 5, 2008
Creator: Pohlmann, Karl F.; Zhu, Jianting; Chapman, Jenny B.; Russell, Charles E.; Carroll, Rosemary W. H. & Shafer, David S.
Object Type: Article
System: The UNT Digital Library
Dynamic Characterizations of an 8-frame Half-Strip High-speed X-ray Microchannel Plate Imager (open access)

Dynamic Characterizations of an 8-frame Half-Strip High-speed X-ray Microchannel Plate Imager

High-speed microchannel plate (MCP)–based imagers are critical detectors for x-ray diagnostics employed on Z-experiments at Sandia National Laboratories (SNL) to measure time-resolved x-ray spectra and to image dynamic hohlraums. A multiframe design using eight half strips in one imager permits recordings of radiation events in discrete temporal snapshots to yield a time-evolved movie. We present data using various facilities to characterize the performance of this design. These characterization studies include DC and pulsed-voltage biased measurements in both saturated and linear operational regimes using an intense, short-pulsed UV laser. Electrical probe measurements taken to characterize the shape of the HV pulse propagating across the strips help to corroborate the spatial gain dependence.
Date: September 5, 2008
Creator: Ken Moy, Ming Wu, Craig Kruschwitz, Aric Tibbits, Matt Griffin, Greg Rochau
Object Type: Article
System: The UNT Digital Library
Employee Handbook (open access)

Employee Handbook

Welcome to Berkeley Lab. You are joining or are already a part of a laboratory with a sterling tradition of scientific achievement, including eleven Nobel Laureates and thirteen National Medal of Science winners. No matter what job you do, you make Berkeley Lab the outstanding organization that it is. Without your hard work and dedication, we could not achieve all that we have. We value you and thank you for choosing to be part of our community. This Employee Handbook is designed to help you navigate the Lab. With over 3,000 employees, an additional 3,000 guests visiting from countries around the world, a 200-acre campus and many policies and procedures, learning all the ins and outs may seem overwhelming, especially if you're a new employee. However, even if you have been here for a while, this Handbook should be a useful reference tool. It is meant to serve as a guide, highlighting and summarizing what you need to know and informing you where you can go for more detailed information. The general information provided in this Handbook serves only as a brief description of many of the Lab's policies. Policies, procedures and information are found in the Lab's Regulations and …
Date: September 5, 2008
Creator: Bello, Madelyn
Object Type: Report
System: The UNT Digital Library
Spatial scaling metrics of mask-induced induced line-edge roughness (open access)

Spatial scaling metrics of mask-induced induced line-edge roughness

Mask contributors to line-edge roughness (LER) have recently been shown to be an issue of concern for both the accuracy of current resist evaluation tests as well the ultimate LER requirements for the 22-nm production node. Problems arise from mask absorber LER as well as mask reflector or surface roughness leading to random phase variations in the reflected beam. Not only do these mask contributors effect to total measured LER in resist, but they also effect LER spatial characteristic such as the LER power spectral density and related descriptors of correlation length and roughness exponent. Noting that these characteristics are important in the understanding of LER, it is crucial to understand how mask effects impact these parameters. Moreover, understanding how these metrics respond to mask effects may lead to an experimental mechanism for experimentally evaluating the importance of mask contributors to LER. Here we use computer modeling to study the LER spatial metrics arising from mask effects. We further describe the effects of illumination conditions and defocus on the metrics and compare the results to those expected from intrinsic resist LER.
Date: September 5, 2008
Creator: Naulleau, Patrick P. & Gallatin, Gregg
Object Type: Article
System: The UNT Digital Library
Greensheet (Houston, Tex.), Vol. 39, No. 370, Ed. 1 Friday, September 5, 2008 (open access)

Greensheet (Houston, Tex.), Vol. 39, No. 370, Ed. 1 Friday, September 5, 2008

Free weekly newspaper that includes business and classified advertising.
Date: September 5, 2008
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 39, No. 372, Ed. 1 Friday, September 5, 2008 (open access)

Greensheet (Houston, Tex.), Vol. 39, No. 372, Ed. 1 Friday, September 5, 2008

Free weekly newspaper that includes business and classified advertising.
Date: September 5, 2008
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Optimist (Abilene, Tex.), Vol. 97, No. 5, Ed. 1 Friday, September 5, 2008 (open access)

The Optimist (Abilene, Tex.), Vol. 97, No. 5, Ed. 1 Friday, September 5, 2008

Bi-weekly student newspaper from Abilene Christian University in Abilene, Texas that includes local, state and campus news along with advertising.
Date: September 5, 2008
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Heritage Areas: Background, Proposals, and Current Issues (open access)

Heritage Areas: Background, Proposals, and Current Issues

This report focuses on heritage areas designated by Congress and related issues and legislation. Over more than two decades, Congress has established 40 National Heritage Areas (NHAs) to commemorate, conserve, and promote areas that include important natural, scenic, historic, cultural, and recreational resources.
Date: September 5, 2008
Creator: Vincent, Carol Hardy & Whiteman, David L.
Object Type: Report
System: The UNT Digital Library
Coal Mine Safety and Health (open access)

Coal Mine Safety and Health

This report begins by reviewing the record of working conditions in the coal mining industry. It then describes the regulatory regime and recent funding of the U.S. Department of Labor's Mine Safety and Health Administration. The report closes with an analysis of current regulatory and legislative initiatives.
Date: September 5, 2008
Creator: Levine, Linda
Object Type: Report
System: The UNT Digital Library
North Texas Daily: Scene (Denton, Tex.), Vol. 92, No. 8, Ed. 1 Friday, September 5, 2008 (open access)

North Texas Daily: Scene (Denton, Tex.), Vol. 92, No. 8, Ed. 1 Friday, September 5, 2008

Weekly magazine edition of the daily student newspaper from the University of North Texas in Denton, Texas that includes local, state and campus news along with advertising.
Date: September 5, 2008
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Dallas Voice (Dallas, Tex.), Vol. 25, No. 16, Ed. 1 Friday, September 5, 2008 (open access)

Dallas Voice (Dallas, Tex.), Vol. 25, No. 16, Ed. 1 Friday, September 5, 2008

Weekly newspaper from Dallas, Texas that includes local, state, and national news and advertising of interest to the Lesbian, Gay, Bisexual, and Transgender (LGBT) community.
Date: September 5, 2008
Creator: Nash, Tammye
Object Type: Newspaper
System: The UNT Digital Library
Economic Slowdown: Issues and Policies (open access)

Economic Slowdown: Issues and Policies

This report first discusses the current state of the economy, including measures that have already been taken by the monetary authorities, and assesses the need for and potential consequences of fiscal stimulus. The second part of the report reviews the proposals discussed during debate on the recently enacted fiscal stimulus, both those adopted and those considered but not adopted.
Date: September 5, 2008
Creator: Gravelle, Jane G.; Hungerford, Thomas L.; Labonte, Marc; Weiss, N. E. & Whittaker, Julie M.
Object Type: Report
System: The UNT Digital Library
Greensheet (Houston, Tex.), Vol. 39, No. 371, Ed. 1 Friday, September 5, 2008 (open access)

Greensheet (Houston, Tex.), Vol. 39, No. 371, Ed. 1 Friday, September 5, 2008

Free weekly newspaper that includes business and classified advertising.
Date: September 5, 2008
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The complete genome sequence of Staphylothermus marinus reveals differences in sulfur metabolism among heterotrophic Crenarchaeota (open access)

The complete genome sequence of Staphylothermus marinus reveals differences in sulfur metabolism among heterotrophic Crenarchaeota

Staphylothermus marinus is an anaerobic, sulfur-reducing peptide fermenter of the archaeal phylum Crenarchaeota. It is the third heterotrophic, obligate sulfur reducing crenarchaeote to be sequenced and provides an opportunity for comparative analysis of the three genomes. The 1.57 Mbp genome of the hyperthermophilic crenarchaeote Staphylothermus marinus has been completely sequenced. The main energy generating pathways likely involve 2-oxoacid:ferredoxin oxidoreductases and ADP-forming acetyl-CoA synthases. S. marinus possesses several enzymes not present in other crenarchaeotes including a sodium ion-translocating decarboxylase likely to be involved in amino acid degradation. S. marinus lacks sulfur-reducing enzymes present in the other two sulfur-reducing crenarchaeotes that have been sequenced - Thermofilum pendens and Hyperthermus butylicus. Instead it has three operons similar to the mbh and mbx operons of Pyrococcus furiosus, which may play a role in sulfur reduction and/or hydrogen production. The two marine organisms, S. marinus and H. butylicus, possess more sodium-dependent transporters than T. pendens and use symporters for potassium uptake while T. pendens uses an ATP-dependent potassium transporter. T. pendens has adapted to a nutrient-rich environment while H. butylicus is adapted to a nutrient-poor environment, and S. marinus lies between these two extremes. The three heterotrophic sulfur-reducing crenarchaeotes have adapted to their habitats, terrestrial …
Date: September 5, 2008
Creator: Anderson, iain J.; Dharmarajan, Lakshmi; Rodriguez, Jason; Hooper, Sean; Porat, Iris; Ulrich, Luke E. et al.
Object Type: Article
System: The UNT Digital Library
Plutonium Mobility Studies: 216-Z-9 Trench Sample Analysis Results (open access)

Plutonium Mobility Studies: 216-Z-9 Trench Sample Analysis Results

A variety of analyses were conducted on selected sediment samples collected from two wells (299 W15-46 and 299-W15-48) drilled near the 216-Z-9 Trench to elucidate the form and potential for Pu and Am to be mobilized under present conditions and those that could be expected in future remediation scenarios. Analyses included moisture content, determination of the less than sand size fraction (silt plus clay), carbon analysis, SEM/EDS analysis, microwave-assisted acid digestions for total element analysis, and extraction tests using Hanford groundwater as the leachate. Results of the extraction tests were used as input to conduct equilibrium geochemical modeling of the solutions with Geochemist’s Workbench®. Geochemical modeling results for Pu were evaluated in terms of recent conclusions regarding the solubility and redox reactions of Pu by Neck et al. (2007a, 2007b). It was found that the highest concentrations of Pu and Am were associated with sediments of low silt/clay content and occur above silt/clay rich layers within the sediment profile. It was also found that the Pu and Am were relatively enriched in the silt/clay portion of these samples. The fact that the highest concentrations of Pu and Am occurred in sediments with low silt/clay contents suggests that waste solutions had …
Date: September 5, 2008
Creator: Cantrell, Kirk J.; Geiszler, Keith N. & Arey, Bruce W.
Object Type: Report
System: The UNT Digital Library
Air Conditioner Compressor Performance Model (open access)

Air Conditioner Compressor Performance Model

During the past three years, the Western Electricity Coordinating Council (WECC) Load Modeling Task Force (LMTF) has led the effort to develop the new modeling approach. As part of this effort, the Bonneville Power Administration (BPA), Southern California Edison (SCE), and Electric Power Research Institute (EPRI) Solutions tested 27 residential air-conditioning units to assess their response to delayed voltage recovery transients. After completing these tests, different modeling approaches were proposed, among them a performance modeling approach that proved to be one of the three favored for its simplicity and ability to recreate different SVR events satisfactorily. Funded by the California Energy Commission (CEC) under its load modeling project, researchers at Pacific Northwest National Laboratory (PNNL) led the follow-on task to analyze the motor testing data to derive the parameters needed to develop a performance models for the single-phase air-conditioning (SPAC) unit. To derive the performance model, PNNL researchers first used the motor voltage and frequency ramping test data to obtain the real (P) and reactive (Q) power versus voltage (V) and frequency (f) curves. Then, curve fitting was used to develop the P-V, Q-V, P-f, and Q-f relationships for motor running and stalling states. The resulting performance model ignores the …
Date: September 5, 2008
Creator: Lu, Ning; Xie, YuLong & Huang, Zhenyu
Object Type: Report
System: The UNT Digital Library
U.S. International Trade: Trends and Forecasts (open access)

U.S. International Trade: Trends and Forecasts

This report provides an overview of the current status, trends, and forecasts for U.S. international trade. The purpose of this report is to provide current data and brief explanations for the various types of trade flows, particularly U.S. exports, along with a short discussion of particular trends and points of contention related to trade policy.
Date: September 5, 2008
Creator: Nanto, Dick K.; Ilias, Shayerah & Donnelly, J. Michael
Object Type: Report
System: The UNT Digital Library
Hudspeth County Herald and Dell Valley Review (Dell City, Tex.), Vol. 52, No. 48, Ed. 1 Friday, September 5, 2008 (open access)

Hudspeth County Herald and Dell Valley Review (Dell City, Tex.), Vol. 52, No. 48, Ed. 1 Friday, September 5, 2008

Weekly newspaper from Dell City, Texas that includes local, state, and national news along with advertising.
Date: September 5, 2008
Creator: Morrell, Donna
Object Type: Newspaper
System: The Portal to Texas History
[Funeral Program for Cecil E. Yancey, Sr., September 5, 2008] (open access)

[Funeral Program for Cecil E. Yancey, Sr., September 5, 2008]

Funeral program for Cecil E. Yancey, Sr., born February 15, 1925 and died August 29, 2008. The funeral was held September 5, 2008 at West End Baptist Church, officiated by Dr. A. B. Devers, I. Funeral arrangements were made through Sunset Northwest Funeral Home, and he was buried in Fort Sam Houston National Cemetery near San Antonio, Texas.
Date: September 5, 2008
Creator: unknown
Object Type: Pamphlet
System: The Portal to Texas History
Health Insurance: Uninsured by State, 2005-2007 (open access)

Health Insurance: Uninsured by State, 2005-2007

This report is based on data from the Census Bureau's Current Population Survey (CPS), an estimated 45.7 million people lacked health insurance coverage in 2007, representing 15.3% of the civilian noninstitutionalized U.S. population.
Date: September 5, 2008
Creator: Peterson, Chris L. & Grady, April
Object Type: Report
System: The UNT Digital Library
Substance Abuse and Mental Health Services Administration (SAMHSA): Reauthorization Issues (open access)

Substance Abuse and Mental Health Services Administration (SAMHSA): Reauthorization Issues

None
Date: September 5, 2008
Creator: unknown
Object Type: Report
System: The UNT Digital Library