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Commodity Futures Trading Commission: Trends in Energy Derivatives Markets Raise Questions about CFTC's Oversight

Description: Testimony issued by the Government Accountability Office with an abstract that begins "Energy prices for crude oil, heating oil, unleaded gasoline, and natural gas have risen substantially since 2002, generating questions about the role derivatives markets have played and the scope of the Commodity Futures Trading Commission's (CFTC) authority. This testimony focuses on (1) trends and patterns in the futures and physical energy markets and their effects on energy prices, (2) the scope of CFTC's… more
Date: October 24, 2007
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Terrorist Watch List Screening: Recommendations to Enhance Management Oversight, Reduce Potential Screening Vulnerabilities, and Expand Use of the List

Description: Testimony issued by the Government Accountability Office with an abstract that begins "The Federal Bureau of Investigation's (FBI) Terrorist Screening Center (TSC) maintains a consolidated watch list of known or appropriately suspected terrorists and sends records from the list to agencies to support terrorism-related screening. This testimony discusses (1) standards for including individuals on the list, (2) the outcomes of encounters with individuals on the list, (3) potential vulnerabilities… more
Date: October 24, 2007
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Measuring Our Nation's Natural Resources and Environmental Sustainability: Highlights of a Forum Jointly Convened by the Comptroller General of the United States and the National Academy of Science

Description: Other written product issued by the Government Accountability Office with an abstract that begins "One of the greatest challenges facing the United States in the 21st century is sustaining our natural resources and safeguarding our environmental assets for future generations while promoting economic growth and maintaining our quality of life. To manage natural resources effectively and efficiently, policymakers need information and methods to analyze the dynamic interplay between the economy an… more
Date: October 24, 2007
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Secure Border Initiative: Observations on Selected Aspects of SBInet Program Implementation

Description: Testimony issued by the Government Accountability Office with an abstract that begins "In November 2005, the Department of Homeland Security (DHS) established the Secure Border Initiative (SBI), a multiyear, multibillion dollar program to secure U.S. borders. One element of SBI is SBInet--the U.S. Customs and Border Protection (CBP) program responsible for developing a comprehensive border protection system through a mix of security infrastructure (e.g., fencing), and surveillance and communica… more
Date: October 24, 2007
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Aviation and the Environment: Impact of Aviation Noise on Communities Presents Challenges for Airport Operations and Future Growth of the National Airspace System

Description: Testimony issued by the Government Accountability Office with an abstract that begins "To address projected increases in air traffic and current problems with aviation congestion and delays, the Joint Planning and Development Office (JPDO), an interagency organization within the Federal Aviation Administration (FAA), is working to plan and implement a new air traffic management system, known as the Next Generation Air Transportation System (NextGen). This effort involves implementing new techno… more
Date: October 24, 2007
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Private Pensions: 401(k) Plan Participants and Sponsors Need Better Information on Fees

Description: Testimony issued by the Government Accountability Office with an abstract that begins "According to Labor's most recent data, there are an estimated 44 million active participants in 401(k) plans. As participants accrue earnings on their investments, they also pay a number of fees, associated with 401(k) plans. Over the course of the employee's career, fees may significantly decrease retirement account balances. For plan sponsors, understanding the fees they are being charged helps fulfill thei… more
Date: October 24, 2007
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Where Water is Oxidized to Dioxygen: Structure of the Photosynthetic Mn4Ca Cluster from X-ray Spectroscopy

Description: Light-driven oxidation of water to dioxygen in plants, algae and cyanobacteria iscatalyzed within photosystem II (PS II) by a Mn4Ca cluster. Although the cluster has been studied by many different methods, the structure and the mechanism have remained elusive. X-ray absorption and emission spectroscopy and EXAFS studies have been particularly useful in probing the electronic and geometric structure, and the mechanism of the water oxidation reaction. Recent progress, reviewed here, includes pola… more
Date: October 24, 2007
Creator: Yano, Junko; Yano, Junko & Yachandra, Vittal K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Passive Detection of Narrowband Sources Using a Sensor Array

Description: In this report we derive a model for a highly scattering medium, implemented as a set of MATLAB functions. This model is used to analyze an approach for using time-reversal to enhance the detection of a single frequency source in a highly scattering medium. The basic approach is to apply the singular value decomposition to the multistatic response matrix for a time-reversal array system. We then use the array in a purely passive mode, measuring the response to the presence of a source. The meas… more
Date: October 24, 2007
Creator: Chambers, D H; Candy, J V & Guidry, B L
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Research project on CO2 geological storage and groundwaterresources: Large-scale hydrological evaluation and modeling of impact ongroundwater systems

Description: If carbon dioxide capture and storage (CCS) technologies areimplemented on a large scale, the amounts of CO2 injected and sequesteredunderground could be extremely large. The stored CO2 then replaces largevolumes of native brine, which can cause considerable pressureperturbation and brine migration in the deep saline formations. Ifhydraulically communicating, either directly via updipping formations orthrough interlayer pathways such as faults or imperfect seals, theseperturbations may impact s… more
Date: October 24, 2007
Creator: Birkholzer, Jens; Zhou, Quanlin; Rutqvist, Jonny; Jordan, Preston; Zhang, K. & Tsang, Chin-Fu
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Does complex absorption behavior leading to conditioning and damage in KDP/DKDP reflect the electronic structure of initiators?

Description: Currently, most of our thinking about the defects responsible for initiating laser damage considers them as featureless absorbers. However, an increasing body of evidence, particularly involving multi-wavelength irradiation, suggests electronic structure of damage initiators is important in determining both initiation and conditioning behaviors in KDP. The effective absorption coefficient of energy under multi-wavelength irradiation cannot be accounted for by a structureless absorber, but is co… more
Date: October 24, 2007
Creator: Feit, M D; DeMange, P P; Negres, R A; Rubenchik, A M & Demos, S G
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Science & Technology Review December 2007

Description: This month's issue has the following articles: (1) Homeland Security Begins Abroad--Commentary by John C. Doesburg; (2) Out of Harm's Way--New physical protection and accountability systems, together with a focus on security, safeguard nuclear materials in the Russian Federation; (3) A Calculated Journey to the Center of the Earth--Determining the permeability of partially melted metals in a mineral matrix unlocks secrets about the formation of Earth's core; (4) Wireless That Works--Communicati… more
Date: October 24, 2007
Creator: Chinn, D. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Femtosecond Time-Delay X-Ray Holography

Description: X-ray free-electron lasers (XFELs) will produce photon pulses with a unique and desirable combination of properties. Their short X-ray wavelengths allow penetration into materials and the ability to probe structure at and below the nanometer scale. Their ultra-short duration gives information about this structure at the fundamental time-scales of atoms and molecules. The extreme intensity of the pulses will allow this information to be acquired in a single shot, so that these studies can be car… more
Date: October 24, 2007
Creator: Chapman, H N
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Virtual venue management users manual : access grid toolkit documentation, version 2.3.

Description: An Access Grid Venue Server provides access to individual Virtual Venues, virtual spaces where users can collaborate using the Access Grid Venue Client software. This manual describes the Venue Server component of the Access Grid Toolkit, version 2.3. Covered here are the basic operations of starting a venue server, modifying its configuration, and modifying the configuration of the individual venues.
Date: October 24, 2007
Creator: Judson, I. R.; Lefvert, S.; Olson, E.; Uram, T. D. & Science, Mathematics and Computer
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Scalable High Performance Message Passing over InfiniBand for Open MPI

Description: InfiniBand (IB) is a popular network technology for modern high-performance computing systems. MPI implementations traditionally support IB using a reliable, connection-oriented (RC) transport. However, per-process resource usage that grows linearly with the number of processes, makes this approach prohibitive for large-scale systems. IB provides an alternative in the form of a connectionless unreliable datagram transport (UD), which allows for near-constant resource usage and initialization ov… more
Date: October 24, 2007
Creator: Friedley, A.; Hoefler, T.; Leininger, M. L. & Lumsdaine, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

2003 Hanford Site Annual Illness and Injury Surveillance Report, Revised October 2007

Description: Annual Illness and Injury Surveillance Program report for the Hanford site. The IISP monitors illnesses and health conditions that result in an absence of workdays, occupational injuries and illnesses, and disabilities and deaths among current workers. The prpogram is part of DOE's commitment to assuring the health and safety of its workers and includes the conduct of epidemiologic surveillance activities that provide an early warning system for health problems among workers.
Date: October 24, 2007
Creator: United States. Department of Energy. Office of Illness and Injury Prevention Programs.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Cell-Based Approach for the Biosynthesis/Screening of Cyclic Peptide Libraries against Bacterial Toxins

Description: Available methods for developing and screening small drug-like molecules able to knockout toxins or pathogenic microorganisms have some limitations. In order to be useful, these new methods must provide high-throughput analysis and identify specific binders in a short period of time. To meet this need, we are developing an approach that uses living cells to generate libraries of small biomolecules, which are then screened inside the cell for activity. Our group is using this new, combined appro… more
Date: October 24, 2007
Creator: Camarero, J. A.; Kimura, R.; Woo, Y.; Cantor, J. & Steenblock, E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

2004 Hanford Site Annual Illness and Injury Surveillance Report, Revised October 2007

Description: Annual Illness and Injury Surveillance Program report for 2004 for the Hanford site. The U.S. Department of Energy’s (DOE) commitment to assuring the health and safety of its workers includes the conduct of epidemiologic surveillance activities that provide an early warning system for health problems among workers. The IISP monitors illnesses and health conditions that result in an absence of workdays, occupational injuries and illnesses, and disabilities and deaths among current workers.
Date: October 24, 2007
Creator: United States. Department of Energy. Office of Illness and Injury Prevention Programs.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

2004 Hanford Site Annual Illness and Injury Surveillance Report, Revised October 2007

Description: Annual Illness and Injury Surveillance Program for 2004 for the Hanford site. The U.S. Department of Energy’s (DOE) commitment to assuring the health and safety of its workers includes the conduct of epidemiologic surveillance activities that provide an early warning system for health problems among workers. The Illness and Injury Surveillance Program monitors illnesses and health conditions that result in an absence of workdays, occupational injuries and illnesses, and disabilities and deaths … more
Date: October 24, 2007
Creator: United States. Department of Energy. Office of Illness and Injury Prevention Programs.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Challenges and Potential of Nuclear Energy for Addressing Climate Change

Description: The response to climate change and the stabilization of atmospheric greenhouse gas concentrations has major implications for the global energy system. Stabilization of atmospheric carbon dioxide (CO2) concentrations requires a peak and an indefinite decline of global CO2 emissions. Nuclear energy, along with other technologies, has the potential to contribute to the growing demand for energy without emitting CO2. Nuclear energy is of particular interest because of its global prevalence and its … more
Date: October 24, 2007
Creator: Kim, Son H. & Edmonds, James A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Digitally Available Interval-Specific Rock-Sample Data Compiled from Historical Records, Nevada Test Site and Vicinity, Nye County, Nevada.

Description: Between 1951 and 1992, 828 underground tests were conducted on the Nevada Test Site, Nye County, Nevada. Prior to and following these nuclear tests, holes were drilled and mined to collect rock samples. These samples are organized and stored by depth of borehole or drift at the U.S. Geological Survey Core Library and Data Center at Mercury, Nevada, on the Nevada Test Site. From these rock samples, rock properties were analyzed and interpreted and compiled into project files and in published rep… more
Date: October 24, 2007
Creator: Wood, David B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

GLAST LAT And Pulsars: What Do We Learn from Simulations?

Description: Gamma-ray pulsars are among the best targets for the Large Area Telescope (LAT) aboard the GLAST mission. The higher sensitivity, time and energy resolution of the LAT will provide data of fundamental importance to understand the physics of these fascinating objects. Powerful tools for studying the LAT capabilities for pulsar science are the simulation programs developed within the GLAST Collaboration. Thanks to these simulations it is possible to produce a detailed distribution of gamma-ray ph… more
Date: October 24, 2007
Creator: Razzano, Massimiliano; /Pisa U. /INFN, Pisa; Harding, Alice K. & /NASA, Goddard
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Systematic Study of Trace Radioactive Impurities in Candidate Construction Materials for EXO-200

Description: The Enriched Xenon Observatory (EXO) will search for double beta decays of 136Xe. We report the results of a systematic study of trace concentrations of radioactive impurities in a wide range of raw materials and finished parts considered for use in the construction of EXO-200, the first stage of the EXO experimental program. Analysis techniques employed, and described here, include direct gamma counting, alpha counting, neutron activation analysis, and high-sensitivity mass spectrometry.
Date: October 24, 2007
Creator: Leonard, D. S.; Grinberg, P.; Weber, P.; Baussan, E.; Djurcic, Z.; Keefer, G. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Studies of tau- to h- h- h+ nu and tau- to K- pi0 nu Decays at BaBar

Description: We present preliminary inclusive branching fraction measurements of {tau}{sup -} {yields} h{sup -}h{sup -}h{sup +}{nu} (h = {pi} or K) and {tau}{sup -} K{sup -}{pi}{sup 0}{nu} decay modes using a sample of {tau}-pair events collected by the BABAR detector at the SLAC PEP-II asymmetric e{sup +}e{sup -} storage ring. The branching fractions of {tau}{sup -} {yields} {pi}{sup -}{pi}{sup -}{pi}{sup +}, {tau}{sup -} {yields} K{sup -}{pi}{sup -}{pi}{sup +}{nu}, and {tau}{sup -} {yields} K{sup -}{pi}{s… more
Date: October 24, 2007
Creator: Nugent, I. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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