Defense Transportation: DOD Has Taken Actions to Incorporate Lessons Learned in Transforming Its Freight Distribution System (open access)

Defense Transportation: DOD Has Taken Actions to Incorporate Lessons Learned in Transforming Its Freight Distribution System

Correspondence issued by the Government Accountability Office with an abstract that begins "The Department of Defense (DOD) transports second destination freight from over 600 locations to thousands of destinations throughout the continental United States each year at a cost of approximately $900 million. In 2001, DOD conducted a prototype program to better understand whether commercial best practices--specifically the use of a third-party logistics provider--could be applied to its freight transportation system and reduce costs. The prototype, which included a 1-year base agreement with two 1-year option periods, was conducted at selected Defense Logistics Agency (DLA) and military service shipping locations in the southeastern United States. At the conclusion of the first year, DLA exercised an option to extend the prototype at its shipping locations, whereas the military service shipping locations returned to DOD's previous freight shipping system due to dissatisfaction with the prototype's performance. On the basis of the prototype, DOD concluded that a third-party logistics provider could successfully integrate with DOD transportation processes if the program was designed and implemented correctly to capitalize on the benefits of using a third-party logistics provider while also addressing the performance problems that were experienced with the prototype. In 2004, the Under Secretary …
Date: May 8, 2007
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Employee Misclassification: Improved Outreach Could Help Ensure Proper Worker Classification (open access)

Employee Misclassification: Improved Outreach Could Help Ensure Proper Worker Classification

Testimony issued by the Government Accountability Office with an abstract that begins "Some workers do not receive worker protections to which they are entitled because employers misclassify them as independent contractors when they should be classified as employees. Key worker protections include minimum hourly wage and overtime pay and access to unemployment insurance. The Department of Labor (DOL) enforces several labor laws to protect workers, including the Fair Labor Standards Act (FLSA). Misclassification can also have a negative impact on tax collection for Social Security, unemployment insurance, and other programs. This testimony draws upon a previous GAO report and focuses specifically on (1) the number and characteristics of independent contractors, (2) the workforce protections and benefits provided to employees that typically are not available to independent contractors, and (3) the actions that DOL takes to detect and address employee misclassification."
Date: May 8, 2007
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Medicare Part D: Enrolling New Dual-Eligible Beneficiaries in Prescription Drug Plans (open access)

Medicare Part D: Enrolling New Dual-Eligible Beneficiaries in Prescription Drug Plans

Testimony issued by the Government Accountability Office with an abstract that begins "Under the Medicare Prescription Drug, Improvement, and Modernization Act of 2003 (MMA), dual-eligible beneficiaries--individuals with both Medicare and Medicaid coverage--have their drug costs covered under Medicare Part D rather than under state Medicaid programs. The MMA requires the Centers for Medicare & Medicaid Services (CMS) to enroll these beneficiaries in a Medicare prescription drug plan (PDP) if they do not select a plan on their own. CMS enrolled about 5.5 million dual-eligible beneficiaries in late 2005 and about 634,000 beneficiaries who became dually eligible during 2006. GAO was asked to testify on (1) CMS's process for enrolling new dual-eligible beneficiaries into PDPs and its effect on access to drugs and (2) how CMS set the effective coverage date for certain dual-eligible beneficiaries and its implementation of this policy. This testimony is based on a GAO report that is being released today, Medicare Part D: Challenges in Enrolling New Dual-Eligible Beneficiaries (GAO-07-272)."
Date: May 8, 2007
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
The Search for Muon Neutrinos from Northern HemisphereGamma-Ray Bursts with AMANDA (open access)

The Search for Muon Neutrinos from Northern HemisphereGamma-Ray Bursts with AMANDA

We present the results of the analysis of neutrino observations by the Antarctic Muon and Neutrino Detector Array (AMANDA) correlated with photon observations of more than 400 gamma-ray bursts (GRBs) in the Northern Hemisphere from 1997 to 2003. During this time period, AMANDA's effective collection area for muon neutrinos was larger than that of any other existing detector. Based on our observations of zero neutrinos during and immediately prior to the GRBs in the dataset, we set the most stringent upper limit on muon neutrino emission correlated with gamma-ray bursts. Assuming a Waxman-Bahcall spectrum and incorporating all systematic uncertainties, our flux upper limit has a normalization at 1 PeV of E{sup 2}{Phi}{sub {nu}} {le} 6.0 x 10{sup -9} GeV cm{sup -2}s{sup -1}sr{sup -1}, with 90% of the events expected within the energy range of {approx}10 TeV to {approx}3 PeV. The impact of this limit on several theoretical models of GRBs is discussed, as well as the future potential for detection of GRBs by next generation neutrino telescopes. Finally, we briefly describe several modifications to this analysis in order to apply it to other types of transient point sources.
Date: May 8, 2007
Creator: Collaboration, IceCube; Klein, Spencer & Achterberg, A.
Object Type: Article
System: The UNT Digital Library
Towards Intelligent Dynamic Deployment of Mobile Sensors in Complex Resource-Bounded Environments (open access)

Towards Intelligent Dynamic Deployment of Mobile Sensors in Complex Resource-Bounded Environments

Decision-making in the face of uncertainty requires an understanding of the probabilistic mechanisms that govern the complex behavior of these systems. This issue applies to many domains: financial investments, disease control, military planning and homeland security. In each of these areas, there is a practical need for efficient resource-bounded reasoning capabilities to support optimal decision-making. Specifically, given a highly complex system, with numerous random variables and their dynamic interactions, how do we monitor such a system and detect crucial events that might impact our decision making process? More importantly, how do we perform this reasoning efficiently--to an acceptable degree of accuracy in real time--when there are only limited computational power and sensory capabilities? These questions encapsulate nontrivial key issues faced by many high-profile Laboratory missions: the problem of efficient inference and dynamic sensor deployment for risk/uncertainty reduction. By leveraging solid ideas such as system decomposition into loosely coupled subsystems and smart resource allocation among these subsystems, we can parallelize inference and data acquisition for faster and improved computational performance. In this report, we propose technical approaches for developing algorithmic tools to enable future scientific and engineering endeavors to better achieve the optimal use of limited resources for maximal return of …
Date: May 8, 2007
Creator: Ng, B M & Hanley, W G
Object Type: Report
System: The UNT Digital Library
Breakdown of Electrostatic Predictions for the Nonlinear Dispersion Relation of a Stimulated Raman Scattering-Driven Plasma Wave (open access)

Breakdown of Electrostatic Predictions for the Nonlinear Dispersion Relation of a Stimulated Raman Scattering-Driven Plasma Wave

The kinetic nonlinear dispersion relation, and frequency shift {delta}{omega}{sub srs}, of a plasma wave driven by stimulated Raman scattering (SRS) are presented. Our theoretical calculations are fully electromagnetic, and use an adiabatic expression for the electron susceptibility which accounts for the change in phase velocity as the wave grows. When k{lambda}{sub D} {approx}> 0.35 (k being the plasma wave number and {lambda}{sub D} the Debye length), {delta}{omega}{sub srs} is significantly larger than could be inferred by assuming that the wave is freely propagating. Our theory is in excellent agreement with 1-D Eulerian Vlasov-Maxwell simulations when 0.3 {le} k{lambda}{sub D} {le} 0.58, and allows discussion of previously proposed mechanisms for Raman saturation. In particular, we find that no 'loss of resonance' of the plasma wave would limit the Raman growth rate, and that saturation through a phase detuning between the plasma wave and the laser drive is mitigated by wave number shifts.
Date: May 8, 2007
Creator: Benisti, D; Strozzi, D J & Gremillet, L
Object Type: Article
System: The UNT Digital Library
Experimental measurements of the 15O(alpha,gamma)19Ne reaction rate and the stability of thermonuclear burning on accreting neutron stars (open access)

Experimental measurements of the 15O(alpha,gamma)19Ne reaction rate and the stability of thermonuclear burning on accreting neutron stars

Neutron stars in close binary star systems often accrete matter from their companion stars. Thermonuclear ignition of the accreted material in the atmosphere of the neutron star leads to a thermonuclear explosion which is observed as an X-ray burst occurring periodically between hours and days depending on the accretion rate. The ignition conditions are characterized by a sensitive interplay between the accretion rate of the fuel supply and its depletion rate by nuclear burning in the hot CNO cycle and the rp-process. For accretion rates close to stable burning the burst ignition therefore depends critically on the hot CNO breakout reaction {sup 15}O({alpha}, {gamma}){sup 19}Ne that regulates the flow between the hot CNO cycle and the rapid proton capture process. Until recently, the {sup 15}O({alpha}, {gamma}){sup 19}Ne reaction rate was not known experimentally and the theoretical estimates carried significant uncertainties. In this paper we perform a parameter study of the uncertainty of this reaction rate and determine the astrophysical consequences of the first measurement of this reaction rate. Our results corroborate earlier predictions and show that theoretically burning remains unstable up to accretion rates near the Eddington limit, in contrast to astronomical observations.
Date: May 8, 2007
Creator: Fisker, J.; Tan, W.; Goerres, J.; Wiescher, M. & Cooper, R.
Object Type: Article
System: The UNT Digital Library
Strain dependence of the Mn anisotropy in ferromagnetic semiconductors observed by x-ray magnetic circular dichroism (open access)

Strain dependence of the Mn anisotropy in ferromagnetic semiconductors observed by x-ray magnetic circular dichroism

None
Date: May 8, 2007
Creator: Arenholz, Elke; Edmonds, K.W.; van der Laan, G.; Farley, N.R.S.; Arenholz, E.; Campion, R.P. et al.
Object Type: Article
System: The UNT Digital Library
A Potential Application of Uncertainty Analysis to Doe-Std-3009-94 Accident Analysis (open access)

A Potential Application of Uncertainty Analysis to Doe-Std-3009-94 Accident Analysis

None
Date: May 8, 2007
Creator: Palmrose, D. E. & Yang, J. M.
Object Type: Article
System: The UNT Digital Library
Distance-Two Interpolation for Parallel Algebraic Multigrid (open access)

Distance-Two Interpolation for Parallel Algebraic Multigrid

Algebraic multigrid (AMG) is one of the most efficient and scalable parallel algorithms for solving sparse linear systems on unstructured grids. However, for large three-dimensional problems, the coarse grids that are normally used in AMG often lead to growing complexity in terms of memory use and execution time per AMG V-cycle. Sparser coarse grids, such as those obtained by the Parallel Modified Independent Set coarsening algorithm (PMIS) [7], remedy this complexity growth, but lead to non-scalable AMG convergence factors when traditional distance-one interpolation methods are used. In this paper we study the scalability of AMG methods that combine PMIS coarse grids with long distance interpolation methods. AMG performance and scalability is compared for previously introduced interpolation methods as well as new variants of them for a variety of relevant test problems on parallel computers. It is shown that the increased interpolation accuracy largely restores the scalability of AMG convergence factors for PMIS-coarsened grids, and in combination with complexity reducing methods, such as interpolation truncation, one obtains a class of parallel AMG methods that enjoy excellent scalability properties on large parallel computers.
Date: May 8, 2007
Creator: De Sterck, H; Falgout, R; Nolting, J & Yang, U M
Object Type: Article
System: The UNT Digital Library
The Spin- and Angel-Resolved Photelectron Spectrometer (open access)

The Spin- and Angel-Resolved Photelectron Spectrometer

A spin- and angle-resolved x-ray photoelectron spectrometer for the study of magnetic materials will be discussed. It consists of a turntable with electron lenses connected to a large hemispherical analyzer. A mini-Mott spin detector is fitted to the output of the hemispherical analyzer. This system, when coupled to a synchrotron radiation source will allow determination of a complete set of quantum numbers of a photoelectron. This instrument will be used to study ferromagnetic, antiferromagnetic and nonmagnetic materials. Some prototypical materials systems to be studied with this instrument system will be proposed.
Date: May 8, 2007
Creator: Mankey, G J; Morton, S A; Tobin, J G; Yu, S W & Waddill, G D
Object Type: Article
System: The UNT Digital Library
80th Texas Legislature, Regular Session, Senate Bill 849, Chapter 47 (open access)

80th Texas Legislature, Regular Session, Senate Bill 849, Chapter 47

Bill introduced by the Texas Senate relating to the submission of annual reports by farm mutual insurance companies.
Date: May 8, 2007
Creator: Texas. Legislature. Senate.
Object Type: Legislative Document
System: The Portal to Texas History
80th Texas Legislature, Regular Session, Senate Bill 884, Chapter 48 (open access)

80th Texas Legislature, Regular Session, Senate Bill 884, Chapter 48

Bill introduced by the Texas Senate relating to the regulation of consumer debt management services.
Date: May 8, 2007
Creator: Texas. Legislature. Senate.
Object Type: Legislative Document
System: The Portal to Texas History
80th Texas Legislature, Regular Session, House Bill 385, Chapter 39 (open access)

80th Texas Legislature, Regular Session, House Bill 385, Chapter 39

Bill introduced by the Texas House of Representatives relating to condemnation of historical sites at the direction of the Commission of Control for Texas Centennial Celebrations.
Date: May 8, 2007
Creator: Texas. Legislature. House of Representatives.
Object Type: Legislative Document
System: The Portal to Texas History
80th Texas Legislature, Regular Session, Senate Bill 271, Chapter 44 (open access)

80th Texas Legislature, Regular Session, Senate Bill 271, Chapter 44

Bill introduced by the Texas Senate relating to the qualifications to serve as an associate judge in certain family law proceedings.
Date: May 8, 2007
Creator: Texas. Legislature. Senate.
Object Type: Legislative Document
System: The Portal to Texas History
80th Texas Legislature, Regular Session, Senate Bill 1665, Chapter 49 (open access)

80th Texas Legislature, Regular Session, Senate Bill 1665, Chapter 49

Bill introduced by the Texas Senate relating to regulation of emissions from residential water heaters.
Date: May 8, 2007
Creator: Texas. Legislature. Senate.
Object Type: Legislative Document
System: The Portal to Texas History
80th Texas Legislature, Regular Session, House Bill 978, Chapter 41 (open access)

80th Texas Legislature, Regular Session, House Bill 978, Chapter 41

Bill introduced by the Texas House of Representatives relating to publication of the annual financial statement by a school district.
Date: May 8, 2007
Creator: Texas. Legislature. House of Representatives.
Object Type: Legislative Document
System: The Portal to Texas History
80th Texas Legislature, Regular Session, House Bill 708, Chapter 40 (open access)

80th Texas Legislature, Regular Session, House Bill 708, Chapter 40

Bill introduced by the Texas House of Representatives relating to Celebrate Freedom Week in public schools.
Date: May 8, 2007
Creator: Texas. Legislature. House of Representatives.
Object Type: Legislative Document
System: The Portal to Texas History
80th Texas Legislature, Regular Session, House Bill 84, Chapter 37 (open access)

80th Texas Legislature, Regular Session, House Bill 84, Chapter 37

Bill introduced by the Texas House of Representatives relating to issuance and renewal of a driver's license of an elderly person.
Date: May 8, 2007
Creator: Texas. Legislature. House of Representatives.
Object Type: Legislative Document
System: The Portal to Texas History
80th Texas Legislature, Regular Session, House Bill 92, Chapter 38 (open access)

80th Texas Legislature, Regular Session, House Bill 92, Chapter 38

Bill introduced by the Texas House of Representatives relating to the acquisition of certain automated external defibrillators.
Date: May 8, 2007
Creator: Texas. Legislature. House of Representatives.
Object Type: Legislative Document
System: The Portal to Texas History
80th Texas Legislature, Regular Session, Senate Bill 526, Chapter 45 (open access)

80th Texas Legislature, Regular Session, Senate Bill 526, Chapter 45

Bill introduced by the Texas Senate relating to providing that a municipality may allow a municipal fire marshal or arson investigator to travel in an unmarked municipal vehicle when performing official duties.
Date: May 8, 2007
Creator: Texas. Legislature. Senate.
Object Type: Legislative Document
System: The Portal to Texas History
78th Texas Legislature, Regular Session, Senate Bill 673, Chapter 46 (open access)

78th Texas Legislature, Regular Session, Senate Bill 673, Chapter 46

Bill introduced by the Texas Senate relating to allowing a student receiving special education services to participate in a graduation ceremony after the fourth year of high school.
Date: May 8, 2007
Creator: Texas. Legislature. Senate.
Object Type: Legislative Document
System: The Portal to Texas History
World Trade Organization Negotiations: The Doha Development Agenda (open access)

World Trade Organization Negotiations: The Doha Development Agenda

None
Date: May 8, 2007
Creator: Fergusson, Ian F.
Object Type: Report
System: The UNT Digital Library
Latin America: Energy Supply, Political Developments, and U.S. Policy Approaches (open access)

Latin America: Energy Supply, Political Developments, and U.S. Policy Approaches

None
Date: May 8, 2007
Creator: unknown
Object Type: Report
System: The UNT Digital Library