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Bureau of Land Management: Effective Long-Term Options Needed to Manage Unadoptable Wild Horses
A letter report issued by the Government Accountability Office with an abstract that begins "The Department of the Interior's Bureau of Land Management (BLM) manages about 33,100 wild horses and burros on 199 Herd Management Areas (HMA) in 10 western states. Under the Wild Free-Roaming Horses and Burros Act of 1971, as amended, BLM is to protect wild horses and burros, set appropriate management levels (AML), maintain current inventory counts, and remove excess animals to prevent overpopulation and rangeland damage. Over the years, various stakeholders have raised issues about BLM's management of the animals on and off the range. GAO examined (1) BLM's progress in setting and meeting AML; (2) BLM's management of animals off the range through adoptions, sales, and holding facilities; (3) BLM's controls to help ensure the humane treatment of animals; and (4) what challenges, if any, BLM faces in managing for the long-term sustainability of the program. GAO surveyed and analyzed documents from 26 of the 44 BLM offices that manage wild horses and burros."
Date:
October 9, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Transportation Security Administration: TSA Executive Attrition Has Declined, but Better Information Is Needed on Reasons for Leaving and Executive Hiring Process
A letter report issued by the Government Accountability Office with an abstract that begins "The Transportation Security Administration's (TSA) Transportation Security Executive Service (TSES) consists of executive-level staff serving in key agency positions just below political appointees. Committees of Congress have raise questions about the frequency of turnover within the TSES and have directed GAO to examine turnover among TSES staff. Accordingly, this report examines: (1) TSES attrition and how it compares with that of Senior Executive Service (SES) staff in other DHS components and cabinet-level departments, (2) the reasons TSES staff separated from TSA, and (3) TSA efforts to mange TSES attrition consistent with effective management practices. To answer these objectives, GAO analyzed data within the Office of Personnel Management's Central Personnel Data File, reviewed TSA human capital policies and procedures, and interviewed former TSES staff. The results of these interviews are not generalizable, but represent the views of about half the TSES staff who separated from fiscal years 2005 through 2008."
Date:
October 9, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Telecommunications: Current Broadband Measures Have Limitations and New Measures Are Promising but Need Improvement
A letter report issued by the Government Accountability Office with an abstract that begins "The Broadband Data Improvement Act, enacted in 2008, established a variety of initiatives intended to improve the quality of state and federal data on broadband (i.e., high-speed Internet) services and promote the deployment (the building of infrastructure over which broadband services can be provided) of affordable broadband services to all parts of the nation. The act required GAO to conduct a study to consider and evaluate additional broadband metrics or standards. This mandated report addresses (1) the measures generally available to consumers, industry, government and others, and (2) the limitations, if any, of the measures and how they could be supplemented or improved. To identify and evaluate the measures, GAO conducted a review of literature and related laws and interviewed and reviewed related documentation from stakeholder groups."
Date:
October 9, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Military Housing: Better Reporting Needed on the Status of the Privatization Program and the Costs of Its Consultants
A letter report issued by the General Accounting Office with an abstract that begins "In 2000, Congress required the Department of Defense (DOD) to report quarterly on the services' expenditures for consultants in support of the military family housing privatization programs. GAO was asked to review the costs of the consultants DOD used to support privatizing housing for servicemembers and their families. This report discusses (1) the number of family housing units the services have privatized, particularly newly constructed or renovated units, and project to be privatized by fiscal year 2005; (2) the portion of privatization support costs used for consultants; (3) the services' consistency in the definition for privatization support and consultant costs; and (4) factors that limit an evaluation of how consultant fees for the military housing initiative compare among the services."
Date:
October 9, 2003
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Medicare+Choice Audits: Lack of Audit Follow-up Limits Usefulness
A letter report issued by the General Accounting Office with an abstract that begins "The Centers for Medicare and Medicaid Services (CMS) spent about $35 billion in 2000 on the Medicare+Choice program--the managed care alternative to Medicare's fee-for-service program. During that time, almost 6.3 million Medicare beneficiaries were enrolled in health plans offered by managed care organizations (MCO) that participate in the Medicare+Choice program. Each year, any MCO choosing to participate in the Medicare+Choice program must submit to CMS an adjusted community rate proposal for each plan that it intends to offer. The proposal identifies the health services the MCO will provide to its Medicare members and the estimated cost to provide those services. It also shows the estimated payments that the MCO expects to receive for providing these services. This report shows that CMS' approach in the first year met the requirements of the Balanced Budget Act of 1997 (BBA) and laid the foundation for future years audit process. The audits done by the Department of Health and Human Services' Office of Inspector General (HHS OIG) and three CPA firms in 2000 were in accordance with generally accepted auditing standards (GAAS) and generally followed CMS' audit program, including the …
Date:
October 9, 2001
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Bioterrorism: Public Health and Medical Preparedness
Testimony issued by the General Accounting Office with an abstract that begins "Federal research and preparedness activities related to bioterrorism center on detecting of such agents; developing new or improved vaccines, antibiotics, and antivirals; and developing performance standards for emergency response equipment. Preparedness activities include: (1) increasing federal, state, and local response capabilities; (2) developing response teams; (3) increasing the availability of medical treatments; (4) participating in and sponsoring exercises; (5) aiding victims; and (6) providing support at special events, such as presidential inaugurations and Olympic games. To coordinate their activities, federal agencies are developing interagency response plans, participating in various interagency work groups, and entering into formal agreements with each other to share resources and capabilities. However, GAO found that coordination of federal terrorism research, preparedness, and response programs is fragmented, raising concerns about the ability of states and localities to respond to a bioterrorist attack. These concerns include poor state and local planning and the lack of hospital participation in training on terrorism and emergency response planning. This report summarized a September 2001 report (GAO-01-915)."
Date:
October 9, 2001
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Teacher Training Programs: Activities Underway to Improve Teacher Training, but Information Collected To Assess Accountability Has Limitations
Testimony issued by the General Accounting Office with an abstract that begins "In 1998, the Congress amended the Higher Education Act (HEA) to enhance the quality of teaching in the classroom by improving training programs for prospective teachers and the qualifications of current teachers. This testimony focuses on two components of the legislation: one that provides grants and another, called the "accountability provisions," that requires collecting and reporting information on the quality of all teacher training programs and qualifications of current teachers. The Subcommittee asked that we provide information on (1) activities grantees supported and what results are associated with these activities and (2) whether the information collected under the accountability provisions provides the basis to assess the quality of teacher training programs and the qualifications of current teachers."
Date:
October 9, 2002
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Defense Acquisitions: DOD Has Implemented Section 845 Recommendations but Reporting Can Be Enhanced
A letter report issued by the General Accounting Office with an abstract that begins "In April 2000, GAO reported on the Department of Defense's (DOD) use of Section 845 agreements, also referred to as "other transactions" for prototype projects. These are transactions other than contracts, grants, or cooperative agreements that generally are not subject to federal laws and regulations applicable to procurement contracts. In December 2000, DOD revised its Section 845 guide. The guide specifies when Section 845 agreements may be used and provides criteria for tailoring terms and conditions for each agreement. Officials from the military services and defense agencies have found the new guide useful and a significant improvement over the prior version. The Secretary of Defense has required a metric--the number of participating nontraditional defense contractors--which is measurable and directly related to each agreement. This metric is tracked and reported internally. DOD explored additional metrics, but concluded that the number of nontraditional contractors was the only one that was quantifiable and tied directly to Section 845 outcomes. DOD's annual report to Congress on Section 845 agreements consists of summaries on each agreement. However, the key metric--the number of nontraditional contractors--is not clearly presented in these reports, making …
Date:
October 9, 2002
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Thermodynamic ground states of platinum metal nitrides
We have systematically studied the thermodynamic stabilities of various phases of the nitrides of the platinum metal elements using density functional theory. We show that for the nitrides of Rh, Pd, Ir and Pt two new crystal structures, in which the metal ions occupy simple tetragonal lattice sites, have lower formation enthalpies at ambient conditions than any previously proposed structures. The region of stability can extend up to 17 GPa for PtN{sub 2}. Furthermore, we show that according to calculations using the local density approximation, these new compounds are also thermodynamically stable at ambient pressure and thus may be the ground state phases for these materials. We further discuss the fact that the local density and generalized gradient approximations predict different values of the absolute formation enthalpies as well different relative stabilities between simple tetragonal and the pyrite or marcasite structures.
Date:
October 9, 2007
Creator:
Aberg, D; Sadigh, B; Crowhurst, J & Goncharov, A
Object Type:
Article
System:
The UNT Digital Library
Advanced Cast Austenitic Stainless Steels for High Temperature Components
In July of 2002, a Cooperative Research and Development Agreement (CRADA) was undertaken between Oak Ridge National Laboratory (ORNL) and Caterpillar, Inc. (Caterpillar Technical Center) to develop and commercialize new cast stainless steels invented and initially tested on a prior CRADA. This CRADA is a direct follow-on project to CRADA ORNL-99-0533 for diesel engine exhaust component and gas turbine engine structural component applications. The goal of this new CRADA was to develop and commercialize the newly discovered cast stainless steels (primarily CF8C-Plus) with improved performance and reliability, as lower-cost upgrade alternatives to more costly cast Ni-based superalloys.
Date:
October 9, 2008
Creator:
Maziasz, P. J.; Shingledecker, J. P.; Evans, N. D. & Pollard, M. J.
Object Type:
Report
System:
The UNT Digital Library
CATALYTIC INTERACTIONS OF RHODIUM, RUTHENIUM, AND MERCURY DURING SIMULATED DWPF CPC PROCESSING WITH HYDROGEN GENERATION
Simulations of the Defense Waste Processing Facility (DWPF) Chemical Processing Cell (CPC) vessels were performed as part of the ongoing investigation into catalytic hydrogen generation. Rhodium, ruthenium, and mercury have been identified as the principal elemental factors affecting the peak hydrogen generation rate in the DWPF Sludge Receipt and Adjustment Tank (SRAT) for a given acid addition. The primary goal of this study is to identify any significant interactions between the three factors. Noble metal concentrations were similar to recent sludge batches. Rh ranged from 0.0026-0.013% and Ru ranged from 0.010-0.050% in the dried sludge solids, while initial Hg ranged from 0.5-2.5 wt%. An experimental matrix was developed to ensure that the existence of statistically significant two-way interactions could be determined without confounding of the main effects with the two-way interaction effects. The nominal matrix design consisted of twelve SRAT cycles. Testing included: a three factor (Rh, Ru, and Hg) study at two levels per factor (eight runs), two duplicate midpoint runs, and two additional replicate runs to assess reproducibility away from the midpoint. Midpoint testing can identify potential quadratic effects from the three factors. A single sludge simulant was used for all tests. Acid addition was kept effectively constant …
Date:
October 9, 2008
Creator:
Koopman, D
Object Type:
Report
System:
The UNT Digital Library
Biological Sampling and Analysis in Sinclair and Dyes Inlets, Washington: Chemical Analyses for 2007 Puget Sound Biota Study
Evaluating spatial and temporal trends in contaminant residues in Puget Sound fish and macroinvertebrates are the objectives of the Puget Sound Ambient Monitoring Program (PSAMP). In a cooperative effort between the ENVironmental inVESTment group (ENVVEST) and Washington State Department of Fish and Wildlife, additional biota samples were collected during the 2007 PSAMP biota survey and analyzed for chemical residues and stable isotopes of carbon (δ13C) and nitrogen (δ15N). Approximately three specimens of each species collected from Sinclair Inlet, Georgia Basin, and reference locations in Puget Sound were selected for whole body chemical analysis. The muscle tissue of specimens selected for chemical analyses were also analyzed for δ13C and δ15N to provide information on relative trophic level and food sources. This data report summarizes the chemical residues for the 2007 PSAMP fish and macro-invertebrate samples. In addition, six Spiny Dogfish (Squalus acanthias) samples were necropsied to evaluate chemical residue of various parts of the fish (digestive tract, liver, embryo, muscle tissue), as well as, a weight proportional whole body composite (WBWC). Whole organisms were homogenized and analyzed for silver, arsenic, cadmium, chromium, copper, nickel, lead, zinc, mercury, 19 polychlorinated biphenyl (PCB) congeners, PCB homologues, percent moisture, percent lipids, δ13C, and δ15N.
Date:
October 9, 2008
Creator:
Brandenberger, Jill M.; Suslick, Carolynn R. & Johnston, Robert K.
Object Type:
Report
System:
The UNT Digital Library
Spoke cavity power coupler conceptual design work for the HEL-JTO beam exp.
The objective of this report was to create a low-cost, modest-power RF coupler for a SRF spoke cavity beam test of electrons test to be done at LANL. Developing the design for this magnetically-coupled SRF spoke cavity testing coupler was basically straightforward since the cavity coupling port needed to be one of the 1.22-inch ID ports, and the power level was limited by the available RF to less than 400 W TW power. In addition, the coupler would be immersed in bath cryostat filled with liquid helium, and ultimately used in a pulsed mode to accelerate beam, thereby significantly relaxing the thermal loads on the coupler. Combining the above considerations with the level of resources available for this task, emphasis was placed on rapidly developing a robust, reliable design that would use commercially-available components as available to save design, engineering, and fabrication costs. Analysis was also kept to a minimum. As such, the design incorporates the following features: (1) Use of a commercially-available Type-N ceramic feedthrough. For the power and frequency range of the test, with the feedthrough immersed in LHe, it was felt the Type-N feedthrough would provide a robust, low-cost vacuum window solution. (2) The coupler outer conductors …
Date:
October 9, 2007
Creator:
Rusnak, B
Object Type:
Report
System:
The UNT Digital Library
Contributions of kinematics and viscoelastic lap deformation on the suface figure during full aperture polishing of fused silica
A typical optical fabrication process involves a series of basic process steps including: (1) shaping, (2) grinding, (3) polishing, and sometimes (4) sub-aperture tool finishing. With significant innovation and development over the years in both the front end (shaping using CNC machines) and the back end (sup-aperture tool polishing), these processes have become much more deterministic. However, the intermediate stages (full aperture grinding/polishing) in the process, which can be very time consuming, still have much reliance on the optician's insight to get to the desired surface figure. Such processes are not presently very deterministic (i.e. require multiple iterations to get desired figure). The ability to deterministically finish an optical surface using a full aperture grinding/polishing will aid optical glass fabricators to achieve desired figure in a more repeatable, less iterative, and more economical manner. Developing a scientific understanding of the material removal rate is a critical step in accomplishing this. In the present study, the surface figure and material removal rate of a fused silica workpiece is measured as a function of polishing time using Ceria based slurry on a polyurethane pad or pitch lap under a variety of kinematic conditions (motion of the workpiece and lap) and loading configurations. …
Date:
October 9, 2007
Creator:
Suratwala, T I; Steele, R A & Feit, M D
Object Type:
Article
System:
The UNT Digital Library
The Computational Modeling of Alloys:From ab initio and thermodynamics to heterogeneous precipitation.
In this lecture we presented a methodology to obtain free energies from empirical potentials and applied it to the study of the phase diagram of FeCr. Subsequently, we used Metropolis Monte Carlo to analyze homogeneous and heterogeneous precipitation of the Cr rich solid solution {alpha}{prime}. These examples are part of our work in the area of steels for nuclear applications and can be found in several publications of our group cited as References.
Date:
October 9, 2007
Creator:
Caro, A
Object Type:
Article
System:
The UNT Digital Library
A micromechanical basis for partitioning the evolution of grainbridging in brittle materials
A micromechanical model is developed for grain bridging inmonolithic ceramics. Specifically, bridge formation of a single,non-equiaxed grain spanning adjacent grains is addressed. A cohesive zoneframework enables crack initiation and propagation along grainboundaries. The evolution of the bridge is investigated through avariance in both grain angle and aspect ratio. We propose that thebridging process can be partitioned into five distinct regimes ofresistance: propagate, kink, arrest, stall, and bridge. Although crackpropagation and kinking are well understood, crack arrest and subsequent"stall" have been largely overlooked. Resistance during the stall regimeexposes large volumes of microstructure to stresses well in excess of thegrain boundary strength. Bridging can occur through continued propagationor reinitiation ahead of the stalled crack tip. The driving forcerequired to reinitiate is substantially greater than the driving forcerequired to kink. In addition, the critical driving force to reinitiateis sensitive to grain aspect ratio but relatively insensitive to grainangle. The marked increase in crack resistance occurs prior to bridgeformation and provides an interpretation for the rapidly risingresistance curves which govern the strength of many brittle materials atrealistically small flaw sizes.
Date:
October 9, 2006
Creator:
Foulk, J. W., III; Cannon, R. M.; Johnson, G. C.; Klein, P. A. & Ritchie, R. O.
Object Type:
Article
System:
The UNT Digital Library
Hadronic Correlations and Fluctuations
We will provide a review of some of the physics which can be addressed by studying fluctuations and correlations in heavy ion collisions. We will discuss Lattice QCD results on fluctuations and correlations and will put them into context with observables which have been measured in heavy-ion collisions. Special attention will be given to the QCD critical point and the first order co-existence region, and we will discuss how the measurement of fluctuations and correlations can help in an experimental search for non-trivial structures in the QCD phase diagram.
Date:
October 9, 2008
Creator:
Koch, Volker
Object Type:
Book
System:
The UNT Digital Library
A Hybrid Method for Accelerated Simulation of Coulomb Collisions in a Plasma
If the collisional time scale for Coulomb collisions is comparable to the characteristic time scales for a plasma, then simulation of Coulomb collisions may be important for computation of kinetic plasma dynamics. This can be a computational bottleneck because of the large number of simulated particles and collisions (or phase-space resolution requirements in continuum algorithms), as well as the wide range of collision rates over the velocity distribution function. This paper considers Monte Carlo simulation of Coulomb collisions using the binary collision models of Takizuka & Abe and Nanbu. It presents a hybrid method for accelerating the computation of Coulomb collisions. The hybrid method represents the velocity distribution function as a combination of a thermal component (a Maxwellian distribution) and a kinetic component (a set of discrete particles). Collisions between particles from the thermal component preserve the Maxwellian; collisions between particles from the kinetic component are performed using the method of or Nanbu. Collisions between the kinetic and thermal components are performed by sampling a particle from the thermal component and selecting a particle from the kinetic component. Particles are also transferred between the two components according to thermalization and dethermalization probabilities, which are functions of phase space.
Date:
October 9, 2007
Creator:
Caflisch, R.; Wang, C.; Dimarco, G.; Cohen, B. & Dimits, A.
Object Type:
Article
System:
The UNT Digital Library
Greensheet (Houston, Tex.), Vol. 39, No. 429, Ed. 1 Thursday, October 9, 2008
Free weekly newspaper that includes business and classified advertising.
Date:
October 9, 2008
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 38, No. 421, Ed. 1 Tuesday, October 9, 2007
Free weekly newspaper that includes business and classified advertising.
Date:
October 9, 2007
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 39, No. 428, Ed. 1 Thursday, October 9, 2008
Free weekly newspaper that includes business and classified advertising.
Date:
October 9, 2008
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 40, No. 430, Ed. 1 Friday, October 9, 2009
Free weekly newspaper that includes business and classified advertising.
Date:
October 9, 2009
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 38, No. 422, Ed. 1 Tuesday, October 9, 2007
Free weekly newspaper that includes business and classified advertising.
Date:
October 9, 2007
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Port Aransas South Jetty (Port Aransas, Tex.), Vol. 38, No. 41, Ed. 1 Thursday, October 9, 2008
Weekly newspaper from Port Aransas, Texas that includes local, state and national news along with extensive advertising.
Date:
October 9, 2008
Creator:
Judson, Mary Henkel
Object Type:
Newspaper
System:
The Portal to Texas History