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Scaling in Non-Stationary time series I
Paper discussing scaling in non-stationary time series.
Date:
February 2, 2008
Creator:
Ignaccolo, Massimiliano; Allegrini, Paolo; Grigolini, Paolo; Hamilton, P. & West, Bruce J.
Object Type:
Paper
System:
The UNT Digital Library
Scaling in Non-stationary Time Series 2: Teen Birth Phenomenon
This paper is devoted to the problem of statistical mechanics raised by the analysis of an issue of sociological interest: the teen birth phenomenon.
Date:
February 2, 2008
Creator:
Ignaccolo, Massimiliano; Allegrini, Paolo; Grigolini, Paolo; Hamilton, P. & West, Bruce J.
Object Type:
Paper
System:
The UNT Digital Library
Aging and Rejuvenation with Fractional Derivatives
Article on aging and rejuvenation with fractional derivatives.
Date:
February 2, 2008
Creator:
Aquino, Gerardo; Bologna, Mauro; Grigolini, Paolo & West, Bruce J.
Object Type:
Paper
System:
The UNT Digital Library
Federal Information System Controls Audit Manual (FISCAM)
Guidance issued by the Government Accountability Office with an abstract that begins "FISCAM presents a methodology for performing information system (IS) control audits of federal and other governmental entities in accordance with professional standards. This version supersedes the prior version, Federal Information System Controls Audit Manual: Volume I Financial Statement Audits, AIMD-12.19.6, January 1, 2001. The FISCAM is designed to be used primarily on financial and performance audits and attestation engagements performed in accordance with GAGAS, as presented in Government Auditing Standards (also know as the "Yellow Book"). The FISCAM is consistent with the GAO/PCIE Financial Audit Manual (FAM). Also, FISCAM control activities are consistent with NIST Special Publication 800-53 and all SP800-53 controls have been mapped to the FISCAM. The FISCAM, which is consistent with NIST and other criteria, is organized to facilitate effective and efficient IS control audits. Specifically, the methodology in the FISCAM incorporates the following: (1) A top-down, risk-based approach that considers materiality and significance in determining effective and efficient audit procedures; (2) Evaluation of entitywide controls and their effect on audit risk; (3) Evaluation of general controls and their pervasive impact on business process application controls; (4) Evaluation of security management at all levels (entitywide, …
Date:
February 2, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Homeland Security: Management of First Responder Grant Programs Has Improved, but Challenges Remain
A letter report issued by the Government Accountability Office with an abstract that begins "The Office for Domestic Preparedness (ODP)--originally established in 1998 within the Department of Justice to help state and local first responders acquire specialized training and equipment needed to respond to terrorist incidents--was transferred to the Department of Homeland Security upon its creation in March 2003. After September 11, 2001, the scope and size of ODP's grant programs expanded. For example, from fiscal year 2001 through fiscal year 2003, ODP grants awarded to states and some urban areas grew from about $91 million to about $2.7 billion. This growth raised questions about the ability of ODP and states to ensure that the domestic preparedness grant programs--including statewide and urban area grants--are managed effectively and efficiently. GAO addressed (1) how statewide and urban area grants were administered in fiscal years 2002 and 2003 so that ODP could ensure that grant funds were spent in accordance with grant guidance and state preparedness planning and (2) what time frames Congress and ODP established for awarding and distributing grants, and how time frames affected the grant cycle."
Date:
February 2, 2005
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Department of the Navy: Breakdown of In-Transit Inventory Process Leaves It Vulnerable to Fraud
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO followed up on its previous report on the Navy's in-transit inventory management system, focusing on: (1) determining what happened to the 34 shipments the Navy could not account for; (2) confirming that the Navy actually had receipt information for the 45 shipments that it could not account for in the previous report; and (3) Navy initiatives that address some of the specific control issues associated with in-transit inventory."
Date:
February 2, 2000
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
International Taxation: Information on Federal Contractors With Offshore Subsidiaries
A letter report issued by the General Accounting Office with an abstract that begins "Every year, U.S.-based multinational corporations transfer hundreds of billions of dollars of goods and services between their affiliates in the United States and their foreign subsidiaries. Such transactions may be a part of normal business operations for corporations with foreign subsidiaries. However, it is generally recognized that given the variation in corporate tax rates across countries, an incentive exists for corporations with foreign subsidiaries to reduce their overall tax burden by maximizing the income they report in countries with low income tax rates, and minimizing the income they report in or repatriate to countries with high income tax rates. Various studies have suggested that U.S.-based multinational corporations appear to engage in transactions such as these that shift income from their affiliates in high-tax countries to subsidiaries in low-tax countries to take advantage of the differences in tax rates in foreign countries. In 2002, GAO reported that 4 of the 100 largest publicly traded federal contractors are incorporated in a "tax haven" country that either does not tax corporate income or taxes the income at a low rate. As a follow-up to the report, Congress asked us …
Date:
February 2, 2004
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
National Nuclear Security Administration: Contractors' Strategies to Recruit and Retain a Critically Skilled Workforce Are Generally Effective
A letter report issued by the Government Accountability Office with an abstract that begins "Responsibility for ensuring the safety and reliability of the nuclear weapons stockpile rests upon a cadre of workers at eight contractor-operated National Nuclear Security Administration (NNSA) weapons facilities. Many of these workers--including scientists, engineers, and technicians--have "critical" skills needed to maintain the stockpile. About 37 percent of these workers are at or near retirement age, raising concern about whether these specialists will have time to pass on their knowledge and expertise to new recruits. In this context, Congress asked us to (1) describe the approaches that NNSA, its contractors, and organizations with similar workforces are using to recruit and retain critically skilled workers; (2) assess the extent to which these approaches have been effective; and (3) describe any remaining challenges, strategies to mitigate these challenges, and the similarity of these challenges and strategies to those of organizations with comparable workforces."
Date:
February 2, 2005
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
A Practical Guide to Federal Enterprise Architecture, Version 1.0 (Extended by GAO-03-584G)
Guidance issued by the General Accounting Office with an abstract that begins ""
Date:
February 2, 2001
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Clean Air Act: Key Stakeholders' Views on Revisions to the New Source Review Program
A letter report issued by the General Accounting Office with an abstract that begins "Environmental Protection Agency (EPA) revisions to the New Source Review (NSR) program to control industrial emissions have drawn attention from state and local agencies that implement the program, as well as industry and environmental and health groups. Under the revisions, companies may not have to install pollution controls when making some facility changes. GAO was asked to obtain the opinions of state air quality officials and other stakeholders on the impact of both the final and proposed revisions EPA issued in December 2002. GAO obtained survey responses from NSR program managers in 44 states and certain localities and contacted six environmental and health groups, and eight industry groups active in the NSR debate. Survey details are available in GAO-04-337SP."
Date:
February 2, 2004
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
State Department: State Has Initiated a More Systematic Approach for Managing Its Aviation Fleet
A letter report issued by the Government Accountability Office with an abstract that begins "The Department of State's (State) Bureau of International Narcotics and Law Enforcement Affairs (INL) owns 357 helicopters and fixed-wing aircraft (valued at over $340 million) primarily to help carry out its counternarcotics efforts, such as aerial eradication of drug crops in Colombia. INL relies on contractor support to help maintain and operate its aircraft. In 2004, GAO analysis showed that INL lagged behind other agencies in implementing Office of Management and Budget (OMB) and General Services Administration (GSA) aviation fleet management principles. GAO was mandated to review INL's management and oversight of this fleet. GAO specifically examined (1) the extent INL has complied with OMB and GSA aviation fleet management guidance and (2) how INL has overseen its aviation support contracts. Since INL has undertaken initiatives to address the weaknesses GAO observed, GAO makes no recommendations. GAO will follow up to ensure that these initiatives are completed, as planned. In comments on this report, State highlighted reforms under way. State also indicated that INL conducted analyses to justify most aviation investments. GAO notes, however, that the documentation provided did not reflect the key analyses called for …
Date:
February 2, 2007
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Military Personnel: A Strategic Approach Is Needed to Address Long-term Guard and Reserve Force Availability
A statement of record issued by the Government Accountability Office with an abstract that begins "The Department of Defense (DOD) has six reserve components: the Army Reserve, the Army National Guard, the Air Force Reserve, the Air National Guard, the Naval Reserve, and the Marine Corps Reserve. DOD's use of Reserve and National Guard forces increased dramatically following the events of September 11, 2001, and on January 19, 2005, more than 192,000 National Guard and Reserve component members were mobilized. About 85 percent of these personnel were members of the Army National Guard or the Army Reserve. Furthermore, the availability of reserve component forces will continue to play an important role in the success of DOD's future missions, and DOD has projected that over the next 3 to 5 years, it will continuously have more than 100,000 reserve component members mobilized. Since September, 2001, GAO has issued a number of reports that have dealt with issues related to the increased use of Reserve and National Guard forces. For this hearing, GAO was asked to provide the results of its work on the extent to which DOD has the strategic framework and policies necessary to maximize reserve component force availability for …
Date:
February 2, 2005
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Nuclear Weapons: Annual Assessment of the Safety, Performance, and Reliability of the Nation's Stockpile
Correspondence issued by the Government Accountability Office with an abstract that begins "In 1992, the United States began a unilateral moratorium on the underground testing of nuclear weapons. Prior to the moratorium, underground nuclear testing was a critical component for evaluating and certifying nuclear warheads. In 1993, the Department of Energy (DOE), at the direction of the President and the Congress, established the Stockpile Stewardship Program to increase understanding of the basic phenomena associated with nuclear weapons, provide better predictive understanding of the safety and reliability of weapons, and ensure a strong scientific and technical basis for future United States nuclear weapons policy objectives. The National Nuclear Security Administration (NNSA), a separately organized agency within DOE, is now responsible for carrying out the Stockpile Stewardship Program. In 1995, the President established an annual stockpile assessment and reporting requirement to help ensure that the nation's nuclear weapons remained safe and reliable without underground nuclear testing. Subsequently, the Congress enacted into law the requirement for an annual stockpile assessment (annual assessment) process in section 3141 of the National Defense Authorization Act for Fiscal Year 2003. Specifically, section 3141 requires that the Secretaries of Energy and Defense submit a package of reports on …
Date:
February 2, 2007
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Health Careers Opportunity Program: Process for Awarding Competitive Grants Included Independent Review
A letter report issued by the Government Accountability Office with an abstract that begins "To support the education and training of health professionals, the Health Resources and Services Administration (HRSA), in the Department of Health and Human Services (HHS), administers health professions education programs authorized under title VII of the Public Health Service Act. One of these programs, the Health Careers Opportunity Program (HCOP), provides grants to health professions schools and other entities to help students from disadvantaged backgrounds prepare for health professions education and training. Funding preference is given to grant applications that demonstrate a comprehensive approach involving other educational or health-related partners. Congressional committees have encouraged HRSA to give priority to applications from schools with a historic mission of educating minority students for health professions. In 2004, the appropriations conference committee asked GAO to review HRSA's process for awarding grants. This report addresses, for fiscal years 2002 through 2005, (1) HRSA's process for awarding HCOP grants and (2) the number and characteristics of HCOP applicants and grantees. GAO reviewed data from HRSA, interviewed HRSA officials, and reviewed relevant federal laws and agency documents from HHS and the Department of Education."
Date:
February 2, 2007
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Veterans' Employment and Training Service: Greater Accountability and Other Labor Actions Needed to Better Serve Veterans
Testimony issued by the Government Accountability Office with an abstract that begins "The number of service members leaving active duty is likely to increase by 200,000 yearly, according to the Department of Labor. To improve employment and training services for veterans and to encourage employers to hire them, Congress passed the Jobs for Veterans Act in 2002, which reformed Labor's Disabled Veterans' Outreach Program (DVOP) and Local Veterans' Employment Representative (LVER) program. This testimony summarizes GAO's recent review of progress implementing the act, including the development of new staff roles and responsibilities, incentive awards, and performance accountability system. GAO examined (1) actions taken to improve performance and accountability since the law's enactment and any associated challenges, (2) whether available data indicate that such action has resulted in improved employment outcomes for veterans, and (3) factors affecting program oversight an accountability."
Date:
February 2, 2006
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Gulf War Illnesses: Basic Questions Unanswered
Testimony issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed the expenditures by the Departments of Defense (DOD), Veterans Affairs (VA), and Health and Human Services (HHS) on Gulf War veterans' illnesses, focusing on the : (1) amount of money that these three departments spent in fiscal years 1997 and 1998 on research and investigation into Gulf War veterans' illnesses and health concerns; (2) results of the research and investigation spending; (3) extent of coordination between the Coordinating Board's Research Working Group and DOD's Office of the Special Assistant for Gulf War Illnesses; and (4) management of contracts supporting DOD's Office of the Special Assistant."
Date:
February 2, 2000
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Child Care: States Increased Spending on Low-Income Families
A letter report issued by the General Accounting Office with an abstract that begins "Nationwide, states reported that federal and state expenditures for child care under the Child Care and Development Fund (CCDF) block grant and the Temporary Assistance for Needy Families (TANF) block grant grew from $4.1 billion in fiscal year 1997 to $6.9 billion in fiscal year 1999 and totaled over $16 billion in constant fiscal year 1997 dollars for this three-year period. More than half of the children whose child care was subsidized with CCDF funds were cared for in centers, and CCDF subsidies for all types of care were primarily provided through vouchers. Eligible parents who were subsidized by CCDF were offered a choice of receiving a voucher to pay a provider of their choosing or using a provider who had a contract with the state. More than half of all the states gave TANF and former TANF families transitioning to work first or second priority for receiving child care subsidies while other eligible low-income families were assigned lower priorities. Officials reported that their states funded the child care needs of their TANF and former TANF families transitioning to work, and were serving all of these …
Date:
February 2, 2001
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
IRS Restructuring Act: Implementation Under Way but Agency Modernization Important to Success
Testimony issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed the Internal Revenue Service's (IRS) progress in implementing the taxpayer rights and protection mandates of the IRS Restructuring and Reform Act of 1998 and IRS' ongoing efforts to modernize its organizational structure, performance management system, and information systems."
Date:
February 2, 2000
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
[Minutes: Intelligence Joint Cross-Service Group, February 2, 2005]
BRAC 2005 Intelligence Joint Cross-Service Group Meeting Minutes of February 2, 2005. The document is redacted, and the meeting minutes were withheld as classified information.
Date:
February 2, 2005
Creator:
United States. Department of Defense.
Object Type:
Text
System:
The UNT Digital Library
Recent charm mixing results from BABAR, Belle, and CDF
A summary of the results of several recent studies of charm mixing is presented. A number of different methods were used, including the measurement of lifetime ratios for final states of different CP, time dependence of wrong-sign hadronic decays, fits to time-dependent Dalitz plots, and searches for wrong-sign semi-leptonic decays. Taken together, they suggest mixing is of order 1%. The status of searches for indirect CP violation is also reported.
Date:
February 2, 2009
Creator:
Charles, M.J. & /SLAC, /Iowa U.
Object Type:
Article
System:
The UNT Digital Library
Final Work Plan: Investigation of Potential Contamination at the Former USDA Facility in Powhattan, Kansas.
This Work Plan outlines the scope of work to be conducted to investigate the subsurface contaminant conditions at the property formerly leased by the Commodity Credit Corporation (CCC) in Powhattan, Kansas (Figure 1.1). Data obtained during this event will be used to (1) evaluate potential contaminant source areas on the property; (2) determine the vertical and horizontal extent of potential contamination; and (3) provide recommendations for future action, with the ultimate goal of assigning this site No Further Action status. The planned investigation includes groundwater monitoring requested by the Kansas Department of Health and Environment (KDHE), in accordance with Section V of the Intergovernmental Agreement between the KDHE and the Farm Service Agency of the U.S. Department of Agriculture (USDA). The work is being performed on behalf of the CCC/USDA by the Environmental Science Division of Argonne National Laboratory. A nonprofit, multidisciplinary research center operated by the University of Chicago for the U.S. Department of Energy, Argonne provides technical assistance to the CCC/USDA with environmental site characterization and remediation at former CCC/USDA grain storage facilities. Argonne issued a Master Work Plan (Argonne 2002) that has been approved by the KDHE. The Master Work Plan describes the general scope of all …
Date:
February 2, 2007
Creator:
LaFreniere, L. M.
Object Type:
Report
System:
The UNT Digital Library
The groundwater-land-surface-atmosphere connection: soil moisture effects on the atmospheric boundary layer in fully-coupled simulations
This study combines a variably-saturated groundwater flow model and a mesoscale atmospheric model to examine the effects of soil moisture heterogeneity on atmospheric boundary layer processes. This parallel, integrated model can represent spatial variations in land-surface forcing driven by three-dimensional (3D) atmospheric and subsurface components. The development of atmospheric flow is studied in a series of idealized test cases with different initial soil moisture distributions generated by an offline spin-up procedure or interpolated from a coarse-resolution dataset. These test cases are performed with both the fully-coupled model (which includes 3D groundwater flow and surface water routing) and the uncoupled atmospheric model. The effects of the different soil moisture initializations and lateral subsurface and surface water flow are seen in the differences in atmospheric evolution over a 36-hour period. The fully-coupled model maintains a realistic topographically-driven soil moisture distribution, while the uncoupled atmospheric model does not. Furthermore, the coupled model shows spatial and temporal correlations between surface and lower atmospheric variables and water table depth. These correlations are particularly strong during times when the land surface temperatures trigger shifts in wind behavior, such as during early morning surface heating.
Date:
February 2, 2007
Creator:
Maxwell, R M; Chow, F K & Kollet, S J
Object Type:
Article
System:
The UNT Digital Library
Vector Unparticle Contributions to Lepton g-2
The generic unparticle propagator may be modified in two ways. Breaking the conformal symmetry effectively adds a mass term to the propagator, while considering vacuum polarization corrections adds a width-like term. Both of these modifications result naturally from the coupling of the unparticle to standard model (SM) fields. We explore how these modifications to the propagator affect the calculation of the lepton anomalous magnetic moment using an integral approximation of the propagator that is accurate for d {approx}< 1.5, where d is the unparticle dimension. We find that for this range of d and various values of the conformal breaking scale {mu}, the value of g-2 calculated when allowing various SM fermions to run in the unparticle self-energy loops does not significantly deviate from the value of g-2 when the width term is ignored. We also investigate the limits on a characteristic mass scale for the unparticle sector as a function of {mu} and d.
Date:
February 2, 2009
Creator:
Conley, John A. & Gainer, James S.
Object Type:
Article
System:
The UNT Digital Library
Lithium Insertion Chemistry of Some Iron Vanadates
Lithium insertion into various iron vanadates has been investigated. Fe{sub 2}V{sub 4}O{sub 13} and Fe{sub 4}(V{sub 2}O{sub 7}){sub 3} {center_dot} 3H{sub 2}O have discharge capacities approaching 200 mAh/g above 2.0 V vs. Li{sup +}/Li. Although the potential profiles change significantly between the first and subsequent discharges, capacity retention is unexpectedly good. Other phases, structurally related to FeVO{sub 4}, containing copper and/or sodium ions were also studied. One of these, {beta}-Cu{sub 3}Fe{sub 4}(VO{sub 4}){sub 6}, reversibly consumes almost 10 moles of electrons per formula unit (ca. 240 mAh g{sup -1}) between 3.6 and 2.0 V vs. Li{sup +}/Li, in a non-classical insertion process. It is proposed that both copper and vanadium are electrochemically active, whereas iron(III) reacts to form LiFe{sup III}O{sub 2}. The capacity of the Cu{sub 3}Fe{sub 4}(VO{sub 4}){sub 6}/Li system is nearly independent of cycling rate, stabilizing after a few cycles at 120-140 mAh g{sup -1}. Iron vanadates exhibit better capacities than their phosphate analogues, whereas the latter display more constant discharge potentials.
Date:
February 2, 2007
Creator:
Patoux, Sebastien & Richardson, Thomas J.
Object Type:
Article
System:
The UNT Digital Library