79th Texas Legislature, Regular Session, Senate Bill 252, Chapter 1 (open access)

79th Texas Legislature, Regular Session, Senate Bill 252, Chapter 1

Bill introduced by the Texas Senate relating to a project of a development corporation in connection with a military base or facility.
Date: April 12, 2005
Creator: Texas. Legislature. Senate.
Object Type: Legislative Document
System: The Portal to Texas History
Accelerator Mass Spectrometry Allows for Cellular Quantification of Doxorubicin at Femtomolar Concentrations (open access)

Accelerator Mass Spectrometry Allows for Cellular Quantification of Doxorubicin at Femtomolar Concentrations

Accelerator mass spectrometry (AMS) is a highly sensitive analytical methodology used to quantify the content of radioisotopes, such as {sup 14}C, in a sample. The primary goals of this work were to demonstrate the utility of AMS in determining cellular [{sup 14}C]doxorubicin (DOX) concentrations and to develop a sensitive assay that is superior to high performance liquid chromatography (HPLC) for the quantification of DOX at the tumor level. In order to validate the superior sensitivity of AMS versus HPLC with fluorescence detection, we performed three studies comparing the cellular accumulation of DOX: one in vitro cell line study, and two in vivo xenograft mouse studies. Using AMS, we quantified cellular DOX content up to 4 hours following in vitro exposure at concentrations ranging from 0.2 pg/ml (345 fM) to 2 {micro}g/ml (3.45 {micro}M) [{sup 14}C]DOX. The results of this study show that, compared to standard fluorescence-based HPLC, the AMS method was over five orders of magnitude more sensitive. Two in vivo studies compared the sensitivity of AMS to HPLC using a nude mouse xenograft model in which breast cancer cells were implanted subcutaneously. After sufficiently large tumors formed, DOX was administered intravenously at two dose levels. Additionally, we tested the …
Date: April 12, 2005
Creator: DeGregorio, M W; Dingley, K H; Wurz, G T; Ubick, E & Turteltaub, K W
Object Type: Article
System: The UNT Digital Library
CASK/MSC/WP PREPARATION SYSTEM DESCRIPTION DOCUMENT (open access)

CASK/MSC/WP PREPARATION SYSTEM DESCRIPTION DOCUMENT

The purpose of this system description document (SDD) is to establish requirements that drive the design of the Cask/MSC/WP preparation system and their bases to allow the design effort to proceed to license application. This SDD is a living document that will be revised at strategic points as the design matures over time. This SDD identifies the requirements and describes the system design, as they exist at this time, with emphasis on those attributes of the design provided to meet the requirements. This SDD has been developed to be an engineering tool for design control. Accordingly, the primary audience and users are design engineers. This type of SDD both leads and trails the design process. It leads the design process with regard to the flow down of upper tier requirements onto the system. Knowledge of these requirements is essential in performing the design process. This SDD trails the design with regard to the description of the system. The description provided in the SDD is a reflection of the results of the design process to date. This SDD addresses the ''Project Requirements Document'' (PRD) (Canori and Leitner 2003 [DIRS 166275]) requirements. Additional PRD requirements may be cited, as applicable, to drive …
Date: April 12, 2005
Creator: Drummond, S.
Object Type: Report
System: The UNT Digital Library
Central Asia:  Regional Developments and Implications for U.S. Interests (open access)

Central Asia: Regional Developments and Implications for U.S. Interests

This report provides an overview of U.S. policy concerns and relations with countries in central Asia. The report discusses issues such as Fostering Pro-Western Orientations, Obstacles to Peace and Independence, Democratization and Human Rights, Security and Arms Control, Trade and Investment, and provides an Aid Overview.
Date: April 12, 2005
Creator: Nichol, Jim
Object Type: Report
System: The UNT Digital Library
Computational Platform for Flux Analysis Using 13C-Label Tracing- Phase I SBIR Final Report (open access)

Computational Platform for Flux Analysis Using 13C-Label Tracing- Phase I SBIR Final Report

Isotopic label tracing is a powerful experimental technique that can be combined with metabolic models to quantify metabolic fluxes in an organism under a particular set of growth conditions. In this work we constructed a genome-scale metabolic model of Methylobacterium extorquens, a facultative methylotroph with potential application in the production of useful chemicals from methanol. A series of labeling experiments were performed using 13C-methanol, and the resulting distribution of labeled carbon in the proteinogenic amino acids was determined by mass spectrometry. Algorithms were developed to analyze this data in context of the metabolic model, yielding flux distributions for wild-type and several engineered strains of M. extorquens. These fluxes were compared to those predicted by model simulation alone, and also integrated with microarray data to give an improved understanding of the metabolic physiology of this organism.
Date: April 12, 2005
Creator: Van Dien, Stephen J.
Object Type: Report
System: The UNT Digital Library
A Contract Based System For Large Data Visualization (open access)

A Contract Based System For Large Data Visualization

VisIt is a richly featured visualization tool that is used to visualize some of the largest simulations ever run. The scale of these simulations requires that optimizations are incorporated into every operation VisIt performs. But the set of applicable optimizations that VisIt can perform is dependent on the types of operations being done. Complicating the issue, VisIt has a plugin capability that allows new, unforeseen components to be added, making it even harder to determine which optimizations can be applied. We introduce the concept of a contract to the standard data flow network design. This contract enables each component of the data flow network to modify the set of optimizations used. In addition, the contract allows for new components to be accommodated gracefully within VisIt's data flow network system.
Date: April 12, 2005
Creator: Childs, H. R.; Brugger, E S; Bonnell, K S; Meredith, J S; Miller, M C; Whitlock, B J et al.
Object Type: Article
System: The UNT Digital Library
Disparate Impact Analysis and the Age Discrimination in Employment Act: the Supreme Court Decision in Smith v. City of Jackson (open access)

Disparate Impact Analysis and the Age Discrimination in Employment Act: the Supreme Court Decision in Smith v. City of Jackson

None
Date: April 12, 2005
Creator: Dale, Charles V.
Object Type: Report
System: The UNT Digital Library
Energy Efficiency and Renewable Energy Legislation in the 109th Congress (open access)

Energy Efficiency and Renewable Energy Legislation in the 109th Congress

This report reviews the status of energy efficiency and renewable energy legislation introduced during the 109th Congress. Action in the second session has focused on appropriations bills; the first session focused on omnibus energy policy bill H.R. 6 and several appropriations bills. this report describes several major pieces of legislation, including the Energy Policy Act of 2005 and the Transportation Equity Act. For each bill listed in this report, a brief description and a summary of action are given, including references to committee hearings and reports. Also, a selected list of hearings on renewable energy is included.
Date: April 12, 2005
Creator: Sissine, Fred
Object Type: Report
System: The UNT Digital Library
Extending the size-parameter range for plane-wave light scattering from infinite homogeneous circular cylinders (open access)

Extending the size-parameter range for plane-wave light scattering from infinite homogeneous circular cylinders

We have developed an algorithm that extends the possible size-parameter range for the calculation of plane-wave light scattering from infinite homogeneous circular cylinders using a Mie-type analysis. Our algorithm is based on the calculation of the ratios of Bessel functions instead of calculating the Bessel functions or their logarithmic derivatives directly. We have found that this algorithm agrees with existing methods (when those methods converge). We have also found that our algorithm converges in cases of very large size parameters, in which case other algorithms often do not.
Date: April 12, 2005
Creator: Hau-Riege, S.
Object Type: Article
System: The UNT Digital Library
Final Technical Report (open access)

Final Technical Report

Using current methods, oil and gas in the subsurface cannot be reliably predicted from seismic data. This causes domestic oil and gas fields to go undiscovered and unexploited, thereby increasing the need to import energy. The general objective of this study was to demonstrate a simple and effective methodology for estimating reservoir properties (gas saturation in particular, but also including lithology, net to gross ratios, and porosity) from seismic attenuation and other attributes using P and S-waves. Phase I specific technical objectives: • Develop Empirical or Theoretical Rock Physics Relations for Qp and Qs • Create P-wave and S-wave Synthetic Seismic Modeling Algorithms with Q • Compute P-wave and S-wave Q Attributes from Multi-component Seismic Data All objectives defined in the Phase I proposal were accomplished. During the course of this project, a new class of seismic analysis was developed based on compressional and shear wave inelastic rock properties (attenuation). This method provides a better link between seismic data and the presence of hydrocarbons. The technique employs both P and S-wave data to better discriminate between attenuation due to hydrocarbons versus energy loss due to other factors such as scattering and geometric spreading. It was demonstrated that P and S …
Date: April 12, 2005
Creator: Walls, Joel; Uden, Richard; Singleton, Scott; Shu, Rone & Mavko, Gary
Object Type: Report
System: The UNT Digital Library
Gamma-Ray Imaging With Coaxial HPGe Detector (open access)

Gamma-Ray Imaging With Coaxial HPGe Detector

We report on the first experimental demonstration of Compton imaging of gamma rays with a single coaxial high-purity germanium (HPGe) detector. This imaging capability is realized by two-dimensional segmentation of the outside contact in combination with digital pulse-shape analysis, which enables to image gamma rays in 4{pi} without employing a collimator. We are able to demonstrate the ability to image the 662keV gamma ray from a {sup 137}Cs source with preliminary event selection with an angular accuracy of 5 degree with an relative efficiency of 0.2%. In addition to the 4{pi} imaging capability, such a system is characterized by its excellent energy resolution and can be implemented in any size possible for Ge detectors to achieve high efficiency.
Date: April 12, 2005
Creator: Niedermayr, T.; Vetter, K.; Mihailescu, L.; Schmid, G. J.; Beckedahl, D.; Kammeraad, J. et al.
Object Type: Article
System: The UNT Digital Library
Global Climate Change (open access)

Global Climate Change

This report briefly reviews the status of climate science, international negotiations, and congressional activity focused specifically on climate change.
Date: April 12, 2005
Creator: Justus, John R. & Fletcher, Susan R.
Object Type: Report
System: The UNT Digital Library
Hardware Accelerated Simulated Radiography (open access)

Hardware Accelerated Simulated Radiography

We present the application of hardware accelerated volume rendering algorithms to the simulation of radiographs as an aid to scientists designing experiments, validating simulation codes, and understanding experimental data. The techniques presented take advantage of 32 bit floating point texture capabilities to obtain validated solutions to the radiative transport equation for X-rays. An unsorted hexahedron projection algorithm is presented for curvilinear hexahedra that produces simulated radiographs in the absorption-only regime. A sorted tetrahedral projection algorithm is presented that simulates radiographs of emissive materials. We apply the tetrahedral projection algorithm to the simulation of experimental diagnostics for inertial confinement fusion experiments on a laser at the University of Rochester. We show that the hardware accelerated solution is faster than the current technique used by scientists.
Date: April 12, 2005
Creator: Laney, D.; Callahan, S.; Max, N.; Silva, C.; Langer, S. & Frank, R.
Object Type: Article
System: The UNT Digital Library
Homeland Security: Management of First Responder Grant Programs and Efforts to Improve Accountability Continue to Evolve (open access)

Homeland Security: Management of First Responder Grant Programs and Efforts to Improve Accountability Continue to Evolve

Testimony issued by the Government Accountability Office with an abstract that begins "In fiscal years 2002 through 2005, the Office for Domestic Preparedness (ODP) within the Department of Homeland Security managed first responder grants totaling approximately $10.5 billion. The bulk of this funding has been for statewide grants through the State Homeland Security Grant Program and urban area grants through the Urban Areas Security Initiative. This testimony provides information on the history and evolution of these two grant programs, particularly with respect to ODP grant award procedures; timelines for awarding and transferring grant funds; and accountability for effective use of grant funds."
Date: April 12, 2005
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Investing Social Security Funds in the Stock Market: Some Economic Considerations (open access)

Investing Social Security Funds in the Stock Market: Some Economic Considerations

For the time being, Social Security receipts are more than enough to fund current benefits. But beginning in 2017, under current law, benefits are projected to exceed Social Security receipts. At that point, if not before, either benefit will have to be cut, taxes will have to be raised, or the shortfall will have to be made up either by tapping non-Social Security revenues, which would reduce the unified federal budget surplus or by an increase in federal borrowing.
Date: April 12, 2005
Creator: Cashell, Brian W.
Object Type: Report
System: The UNT Digital Library
Materials Degradation Issues in the U.S. High-Level Nuclear Waste Repository (open access)

Materials Degradation Issues in the U.S. High-Level Nuclear Waste Repository

This paper reviews the state-of-the-art understanding of the degradation processes by the Yucca Mountain Project (YMP) with focus on interaction between the in-drift environmental conditions and long-term materials degradation of waste packages and drip shields within the repository system during the first 10,000-years after repository closure. This paper provides an overview of the degradation of the waste packages and drip shields in the repository after permanent closure of the facility. The degradation modes discussed in this paper include aging and phase instability, dry oxidation, general and localized corrosion, stress corrosion cracking, and hydrogen induced cracking of Alloy 22 and titanium alloys. The effects of microbial activity and radiation on the degradation of Alloy 22 and titanium alloys are also discussed. Further, for titanium alloys, the effects of fluorides, bromides, and galvanic coupling to less noble metals are considered. It is concluded that the materials and design adopted will provide sufficient safety margins for at least 10,000-years after repository closure.
Date: April 12, 2005
Creator: Mon, K.G. & Hua, F.
Object Type: Report
System: The UNT Digital Library
The Middle East Peace Talks (open access)

The Middle East Peace Talks

None
Date: April 12, 2005
Creator: Migdalovitz, Carol
Object Type: Report
System: The UNT Digital Library
New Zealand: Background and Bilateral Relations with the United States (open access)

New Zealand: Background and Bilateral Relations with the United States

None
Date: April 12, 2005
Creator: Vaughn, Bruce
Object Type: Report
System: The UNT Digital Library
NMR structure of hypothetical protein MG354 from Mycoplasmagenitalium (open access)

NMR structure of hypothetical protein MG354 from Mycoplasmagenitalium

Mycoplasma genitalium (Mg) and M. pneumoniae (Mp) are human pathogens with two of the smallest genomes sequenced to date ({approx} 480 and 680 genes, respectively). The Berkeley Structural Genomics Center is determining representative structures for gene products in these organisms, helping to understand the set of protein folds needed to sustain this minimal organism. The protein coded by gene MG354 (gi3844938) from M. genitalium has a relatively unique sequence, related only to MPN530 from M. pneumoniae (68% identity, coverage 99%) and MGA{_}0870 from the avian pathogen M. gallisepticum (23% identity, coverage 94%), has no homologue with a determined structure, and no functional annotations.
Date: April 12, 2005
Creator: Pelton, Jeffrey G.; Shi, Jianxia; Yokotoa, Hisao; Kim, Rosalind & Wemmer, David E.
Object Type: Article
System: The UNT Digital Library
Operon Formation is Driven by Co-Regulation and Not by Horizontal Gene Transfer (open access)

Operon Formation is Driven by Co-Regulation and Not by Horizontal Gene Transfer

Although operons are often subject to horizontal gene transfer (HGT), non-HGT genes are particularly likely to be in operons. To resolve this apparent discrepancy and to determine whether HGT is involved in operon formation, we examined the evolutionary history of the genes and operons in Escherichia coli K12. We show that genes that have homologs in distantly related bacteria but not in close relatives of E. coli (indicating HGTi) form new operons at about the same rates as native genes. Furthermore, genes in new operons are no more likely than other genes to have phylogenetic trees that are inconsistent with the species tree. In contrast, essential genes and ubiquitous genes without paralogs (genes believed to undergo HGT rarely) often form new operons. We conclude that HGT is not associated with operon formation, but instead promotes the prevalence of pre-existing operons. To explain operon formation, we propose that new operons reduce the amount of regulatory information required to specify optimal expression patterns. Consistent with this hypothesis, operons have greater amounts of conserved regulatory sequences than do individually transcribed genes.
Date: April 12, 2005
Creator: Price, Morgan N.; Huang, Katherine H.; Arkin, Adam P. & Alm, Eric J.
Object Type: Article
System: The UNT Digital Library
Payday Loans: Federal Regulatory Initiatives (open access)

Payday Loans: Federal Regulatory Initiatives

None
Date: April 12, 2005
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Plan Colombia: A Progress Report (open access)

Plan Colombia: A Progress Report

None
Date: April 12, 2005
Creator: Veillette, Connie
Object Type: Report
System: The UNT Digital Library
The Proposed Yucca Mountain Repository From A Corrosion Perspective (open access)

The Proposed Yucca Mountain Repository From A Corrosion Perspective

Corrosion is a primary determinant of waste package performance at the proposed Yucca Mountain Repository and will control the delay time for radionuclide transport from the waste package. Corrosion is the most probable and most likely degradation process that will determine when packages will be penetrated and the shape, size, and distribution of those penetrations. The general issues in corrosion science, materials science and electrochemistry are well defined, and the knowledge base is substantial for understanding corrosion processes. In this paper, the Yucca Mountain Repository is viewed from a corrosion perspective. A major component of the long-term strategy for safe disposal of nuclear waste at the Yucca Mountain Repository is first to completely isolate the radionuclides in the waste packages for long times and to greatly retard the egress and transport of radionuclides from penetrated packages. Therefore, long-lived waste packages are important. The corrosion resistance of the waste package outer canister is reviewed, and a framework for the analysis of localized corrosion processes is presented. An overview is presented of the Materials Performance targeted thrust of the U.S. Department of Energy/Office of Civilian Radioactive Waste Management's Office of Science and Technology and International. The thrust program strives for increased scientific …
Date: April 12, 2005
Creator: Payer, J.H.
Object Type: Report
System: The UNT Digital Library
The Rise of China and Its Effect on Taiwan, Japan, and South Korea: U.S. Policy Choices (open access)

The Rise of China and Its Effect on Taiwan, Japan, and South Korea: U.S. Policy Choices

None
Date: April 12, 2005
Creator: Nanto, Dick K. & Chanlett-Avery, Emma
Object Type: Report
System: The UNT Digital Library