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Equivalence of dipole correction and Coulomb cutoff techniques in supercell calculations

Description: Article on the equivalence of dipole correction and Coulomb cutoff techniques in supercell calculations. In this work, the authors compare the dipole correction and Coulomb cutoff methods under the same conditions in the framework of plane-wave based density-functional theory.
Date: June 3, 2008
Creator: Yu, Liping; Ranjan, Vivek; Lu, W.; Bernholc, Jerry & Buongiorno Nardelli, Marco
Item Type: Refine your search to only Article
Partner: UNT College of Arts and Sciences
open access

U.S. Postal Service: Mail-Related Recycling Initiatives and Possible Opportunities for Improvement

Description: A letter report issued by the Government Accountability Office with an abstract that begins "In 2006, the U.S. Postal Service (USPS) discarded about 317,000 tons of undeliverable-as-addressed advertising mail. Such mail can be disposed of using incineration, landfills or through other methods. USPS recently committed to minimizing the agency's impact on every aspect of the environment. Recycling undeliverable advertising mail can help USPS achieve this commitment, while generating revenue and r… more
Date: June 3, 2008
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Defense Acquisitions: Better Weapon Program Outcomes Require Discipline, Accountability, and Fundamental Changes in the Acquisition Environment

Description: Testimony issued by the Government Accountability Office with an abstract that begins "Since 1990, GAO has designated the Department of Defense's (DOD) management of major weapon system acquisitions a high risk area. DOD has taken some action to improve acquisition outcomes, but its weapon programs continue to take longer, cost more, and deliver fewer capabilities than originally planned. These persistent problems--coupled with current operational demands--have impelled DOD to work outside of i… more
Date: June 3, 2008
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

In-situ Spectroscopy of Water Oxidation at Ir Oxide Nanocluster Drivenby Visible TiOCr Charge-Transfer Chromophore in Mesoporous Silica

Description: An all-inorganic photocatalytic unit consisting of a binuclear TiOCr charge-transfer chromophore coupled to an Ir oxide nanocluster has been assembled on the pore surface of mesoporous silica AlMCM-41. In situ FT-Raman and EPR spectroscopy of an aqueous suspension of the resulting IrxOy-TiCr-AlMCM-41 powder reveal the formation of superoxide species when exciting the Ti(IV)OCr(III) --> Ti(III)OCr(IV) metal-to-metal charge-transfer chromophore with visible light. Use of H218O confirms that th… more
Date: June 3, 2008
Creator: Frei, Heinz; Han, Hongxian & Frei, Heinz
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Savings estimates for the United States Environmental Protection Agency?s ENERGY STAR voluntary product labeling program

Description: ENERGY STAR is a voluntary energy efficiency-labeling program operated jointly by the United States Department of Energy and the United States Environmental Protection Agency (US EPA). Since the program inception in 1992, ENERGY STAR has become a leading international brand for energy efficient products. ENERGY STAR's central role in the development of regional, national, and international energy programs necessitates an open process whereby its program achievements to date as well as proje… more
Date: June 3, 2008
Creator: Sanchez, Marla Christine; Sanchez, Marla Christine; Brown, Richard; Homan, Gregory & Webber, Carrie
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Summary of operations and performance of the Murdock site restoration project in 2007.

Description: This document summarizes the performance of the groundwater and surface water restoration systems installed by the Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) at the former CCC/USDA grain storage facility in Murdock, Nebraska, during the second full year of system operation, from January 1 through December 31, 2007. Performance in June 2005 through December 2006 was reported previously (Argonne 2007). In the Murdock project, several innovative technologies are … more
Date: June 3, 2008
Creator: LaFreniere, L. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Visible Light-Induced Electron Transfer from Di-mu-oxo Bridged Dinuclear Mn Complexes to Cr Centers in Silica Nanopores

Description: The compound (bpy)2MnIII(mu-O)2MnIV(bpy)2, a structural model relevant for the photosynthetic water oxidation complex, was coupled to single CrVI charge-transfer chromophores in the channels of the nanoporous oxide AlMCM-41. Mn K-edge EXAFS spectroscopy confirmed that the di-mu-oxo dinuclear Mn core of the complex is unaffected when loaded into the nanoscale pores. Observation of the 16-line EPR signal characteristic of MnIII(mu-O)2MnIV demonstrates that the majority of the loaded complexes ret… more
Date: June 3, 2008
Creator: Frei, Heinz; Weare, Walter W.; Pushkar, Yulia; Yachandra, Vittal K. & Frei, Heinz
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Climate Change: Current Issues and Policy Tools

Description: This report introduces the reader to fundamentals of the climate change issue. Part one summarizes current understandings and controversies concerning the science, economics, international cooperation, and other aspects of the climate change policy problem. Part two is a brief update on the status of domestic and international policies. Part three outlines the policy toolbox seen as being available to policymakers to address the challenge as they define the emerging legislative agenda.
Date: June 3, 2008
Creator: Leggett, Jane A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Agriculture and Forestry Provisions in Climate Change Legislation (S. 3036)

Description: This report summarizes some of the domestic agriculture and forestry provisions in the Lieberman-Warner Climate Security Act of 2008 (S. 3036, formerly S. 2191), as ordered reported out of the Senate Committee on Environment and Public Works in December 2007.
Date: June 3, 2008
Creator: Johnson, Renée
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

United Nations System Efforts to Address Violence Against Women

Description: This report provides an overview of recent U.N. efforts to address VAW and highlights key U.N. interagency efforts. It also discusses selected U.N. funds, programs, and agencies that address international violence against women. It does not assess the extent to which VAW is directly addressed or is part of a larger initiative or program.
Date: June 3, 2008
Creator: Blanchfield, Luisa
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

International Violence Against Women: U.S. Response and Policy Issues

Description: This report addresses causes, prevalence, and consequences of violence against women. It provides examples of U.S. activities that address violence against women (VAW) directly or include anti-VAW components. It also outlines possible policy considerations for the 110th Congress, including the scope and effectiveness of U.S. programs; further integrating anti-VAW programs into U.S. assistance and foreign policy mechanisms; and strengthening U.S. government coordination of anti-VAW activities.
Date: June 3, 2008
Creator: Blanchfield, Luisa; Margesson, Rhoda; Seelke, Claire Ribando; Salaam-Blyther, Tiaji & Serafino, Nina M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Homeland Security: Roles and Missions for United States Northern Command

Description: This report outlines the organizational structure of United States Northern Command (NORTHCOM), explains how NORTHCOM contributes to homeland security through the interagency process, and summarizes NORTHCOM's international relationships with Canada and Mexico. Some issues for Congress involving NORTHCOM include Department of Defense (DOD) reorganization and the Unified Command Plan, improving interagency relationships, NORTHCOM's increased reliance on reserve component service members, the ong… more
Date: June 3, 2008
Creator: Knight, William
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Petroleum Refining: Economic Performance and Challenges for the Future

Description: This report discusses the petroleum refining industry and its relation to the economy. Along with volatile changes in crude oil prices, the industry has faced evolving health, safety, and environmental requirements which have changed and multiplied product specifications and required capital investment in refineries. This report also seeks to describe the recent performance of the refining industry, to evaluate the structural changes that are occurring in the industry, and to analyze the nature… more
Date: June 3, 2008
Creator: Pirog, Robert
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Climate Change: Current Issues and Policy Tools

Description: This report introduces the reader to fundamentals of the climate change issue. Part one summarizes current understandings and controversies concerning the science, economics, international cooperation, and other aspects of the climate change policy problem. Part two is a brief update on the status of domestic and international policies. Part three outlines the policy toolbox seen as being available to policymakers to address the challenge as they define the emerging legislative agenda.
Date: June 3, 2008
Creator: Leggett, Jane A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Endangered Species Act (ESA) in the 110th Congress: Conflicting Values and Difficult Choices

Description: This report will identify and discuss oversight issues and legislation introduced in the 110th Congress to address specific concerns related to how ESA is implemented and how endangered species are managed, and will be updated periodically to reflect legislative action.
Date: June 3, 2008
Creator: Buck, Eugene H.; Corn, M. L.; Sheikh, Pervaze A.; Meltz, Robert & Alexander, Kristina
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Petroleum Refining: Economic Performance and Challenges for the Future

Description: This report discusses the petroleum refining industry and its relation to the economy. Along with volatile changes in crude oil prices, the industry has faced evolving health, safety, and environmental requirements which have changed and multiplied product specifications and required capital investment in refineries.
Date: June 3, 2008
Creator: Pirog, Robert
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Merida Initiative: Proposed U.S. Anticrime and Counterdrug Assistance for Mexico and Central America

Description: In October 2007, the United States and Mexico announced the Mérida Initiative, a multi-year proposal for $1.4 billion in U.S. assistance to Mexico and Central America aimed at combating drug trafficking, gangs, and organized crime. This report outlines the various appropriations and other foreign aid measures outlined in the Mérida Initiative and what future actions regarding this ongoing effort will include.
Date: June 3, 2008
Creator: Cook, Colleen W.; Rush, Rebecca G. & Seelke, Clare Ribando
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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