UNT Libraries Government Documents Department - 264 Matching Results

Search Results

Results: 1 - 24 next
open access

Accurate wavelength measurements and modeling of FeXV to FeXIX spectra recorded in high density plasmas between 13.5 to 17 A.

Description: Iron spectra have been recorded from plasmas created at three different laser plasma facilities, the Tor Vergata University laser in Rome (Italy), the Hercules laser at ENEA in Frascati (Italy), and the Compact Multipulse Terawatt (COMET) laser at LLNL in California (USA). The measurements provide a means of identifying dielectronic satellite lines from FeXVI and FeXV in the vicinity of the strong 2p {yields} 3d transitions of FeXVII. About 80 {Delta}n {ge} 1 lines of FeXV (Mg-like) to FeXIX (O… more
Date: September 28, 2004
Creator: May, M.; Beiersdorfer, P.; Dunn, J.; Jordan, N.; Osterheld, A.; Faenov, A. et al.
Item Type: Refine your search to only Article
open access

The Adaptive Response in p53 Cancer Prone Mice: Loss of heterozygosity and Genomic Instability.

Description: The Trp53 gene is clearly associated with increased cancer risk. This, coupled with the broad understanding of its mode of action at the molecular level, makes this gene a good candidate for investigating the relationship between genetic risk factors and spontaneous cancer occurring in a mouse model exposed to low dose radiation. We have shown that adaptive response to chronic low dose radiation could increase cancer latency, as well as overall lifespan. To better understand the molecular proce… more
Date: September 28, 2004
Creator: Lavoie, Josée; Dolling, Jo-Anna; Mitchel, Ron E. J. & Boreham, Douglas R.
Item Type: Refine your search to only Report
open access

Adequate Yearly Progress (AYP): Implementation of the No Child Left Behind Act

Description: This report is intended to provide an overview of the Adequate Yearly Process (AYP) concept and several related issues, a description of the AYP provisions of the No Child Left Behind Act, and an analysis of the implementation of these provisions by the U.S. Department of Education (ED) and the states. It will be updated when major administrative actions are taken by ED, or substantial new data on state implementation become available.
Date: July 28, 2004
Creator: Riddle, Wayne
Item Type: Refine your search to only Report
open access

Advanced ST Plasma Scenario Simulations for NSTX

Description: Integrated scenario simulations are done for NSTX [National Spherical Torus Experiment] that address four primary milestones for developing advanced ST configurations: high {beta} and high {beta}{sub N} inductive discharges to study all aspects of ST physics in the high-beta regime; non-inductively sustained discharges for flattop times greater than the skin time to study the various current-drive techniques; non-inductively sustained discharges at high {beta} for flattop times much greater tha… more
Date: October 28, 2004
Creator: Kessel, C.E.; Synakowski, E.J.; Gates, D.A.; Harvey, R.W.; Kaye, S.M.; Mau, T.K. et al.
Item Type: Refine your search to only Report
open access

Advanced Vehicle Technologies: Energy, Environment, and Development Issues

Description: This report discusses three major vehicle technologies — electric vehicles, hybrid electric vehicles, and fuel cell vehicles — as well as advanced component technologies. Each technology is discussed in terms of cost, fueling and maintenance infrastructure, and performance. The report also discusses key legislation in the 108th Congress, as well as federal, state, and local activity relevant to these technologies. This report will be updated as events warrant.
Date: January 28, 2004
Creator: Yacobucci, Brent D.
Item Type: Refine your search to only Report
open access

Afghanistan: Post-War Governance, Security, and U.S. Policy

Description: The United States and its allies are helping Afghanistan emerging from more than 22 years of warfare, although substantial risk to Afghan stability remains. Before the U.S. military campaign against the orthodox Islamist Taliban movement began on October 7, 2001, Afghanistan had been mired in conflict since the Soviet invasion of Afghanistan in 1979. The defeat of the Taliban has enabled the United States and its coalition partners to send forces throughout Afghanistan to search for Taliban and… more
Date: December 28, 2004
Creator: Katzman, Kenneth
Item Type: Refine your search to only Report
open access

Aging and Phase Stability of Waste Package Outer Barrier

Description: This report was prepared in accordance with ''Technical Work Plan for: Regulatory Integration Modeling and Analysis of the Waste Form and Waste Package'' (BSC 2004 [DIRS 171583]). This report provides information on the phase stability of Alloy 22, the current waste package outer barrier material. The goal of this model is to determine whether the single-phase solid solution is stable under repository conditions and, if not, how fast other phases may precipitate. The aging and phase stability m… more
Date: September 28, 2004
Creator: Wong, F.
Item Type: Refine your search to only Report
open access

AIDS in Africa

Description: Sub-Saharan Africa has been far more severely affected by AIDS than any other part of the world. The United Nations reports that 26.6 million adults and children are infected with the HIV virus in the region, which has about 10% of the world's population but more than two-thirds of the worldwide total of infected people. This report discusses this issue in detail, including the cause of the African AIDS epidemic, the social and economic consequences, response and treatment, and U.S. policy.
Date: May 28, 2004
Creator: Copson, Raymond W.
Item Type: Refine your search to only Report
open access

Analysis and Annotation of Nucleic Acid Sequence

Description: The aims of this project were to develop improved methods for computational genome annotation and to apply these methods to improve the annotation of genomic sequence data with a specific focus on human genome sequencing. The project resulted in a substantial body of published work. Notable contributions of this project were the identification of basecalling and lane tracking as error processes in genome sequencing and contributions to improved methods for these steps in genome sequencing. This… more
Date: July 28, 2004
Creator: States, David J.
Item Type: Refine your search to only Report
open access

Analytical Modeling of Wave Generation by the Borehole OrbitalVibrator Source

Description: The orbital vibrator source (a fluid-coupled shear wave source) has many unique properties that are useful for cross-well, single-well, and borehole-to-surface imaging of both P- (compressional)and S-(shear) wave velocities of reservoir rocks. To this day, however, no standard models for this source have been established, and the mechanism of wave generation and the characteristics of wave field around the source are not well understood yet. In this article, we develop both two and three-dimens… more
Date: June 28, 2004
Creator: Nakagawa, Seiji & Daley, Thomas M.
Item Type: Refine your search to only Article
open access

Application of the Extended Pairing Model to Heavy Isotopes

Description: The binding energies of three isotopic chains ({sup 100-130}Sn, {sup 152-181}Yb, and {sup 181-202}Pb) are studied using the extended pairing model. By using the exact solvability of the model one determines the pairing strength G(A) that reproduces the experimental binding energies. For these isotopic chains, log (G(A)) has a smooth systematic behavior. In particular, G(A) for the Pb and Sn isotopes can be described by a two parameter expression that is inversely proportional to the dimensional… more
Date: September 28, 2004
Creator: Gueorguiev, V G; Pan, F & Draayer, J P
Item Type: Refine your search to only Article
open access

Assesing the Impacts of Local Deposition of Mercury Associated With Coal-Fired Power Plants.

Description: Mercury emissions from coal fired plants will be limited by regulations enforced by the Environmental Protection Agency. However, there is still debate over whether the limits should be on a plant specific basis or a nationwide basis. The nationwide basis allows a Cap and Trade program similar to that for other air pollutants. Therefore, a major issue is the magnitude and extent of local deposition. Computer modeling suggests that increased local deposition will occur on a local (2 to 10 Km) to… more
Date: March 28, 2004
Creator: Sullivan, T.; Bowerman, B.; Adams, J.; Ogeka, C.; Lipfert, F. & Renninger, S.
Item Type: Refine your search to only Article
open access

Assessing the Mercury Health Risks Associated With Coal-Fired Power Plants: Issues in Atmospheric Processes.

Description: The rationale for regulating air emissions of mercury from U.S. coal-fired power plants largely depends on mathematical dispersion modeling, including the atmospheric chemistry processes that affect the partitioning of Hg emissions into elemental (Hg{sub 0}) and the reactive (RGM) forms that may deposit more rapidly near sources. This paper considers and evaluates the empirical support for this paradigm. We consider the extant experimental data at three spatial scales: local (< 30 km), regio… more
Date: March 28, 2004
Creator: Lipfert, F.; Sullivan, T. & Renninger, S.
Item Type: Refine your search to only Article
open access

Barrier rf systems in synchrotrons

Description: Recently, many interesting applications of the barrier RF system in hadron synchrotrons have been realized. A remarkable example of this is the development of longitudinal momentum mining and implementation at the Fermilab Recycler for extraction of low emittance pbars for the Tevatron shots. At Fermilab, we have barrier RF systems in four different rings. In the case of Recycler Ring, all of the rf manipulations are carried out using a barrier RF system. Here, the author reviews various uses o… more
Date: June 28, 2004
Creator: Bhat, Chandra M.
Item Type: Refine your search to only Article
open access

Beyond the standard model in many directions

Description: These four lectures constitute a gentle introduction to what may lie beyond the standard model of quarks and leptons interacting through SU(3){sub c} {direct_product} SU(2){sub L} {direct_product} U(1){sub Y} gauge bosons, prepared for an audience of graduate students in experimental particle physics. In the first lecture, I introduce a novel graphical representation of the particles and interactions, the double simplex, to elicit questions that motivate our interest in physics beyond the stand… more
Date: April 28, 2004
Creator: Quigg, Chris
Item Type: Refine your search to only Article
open access

Branching ratios from B{sub s} and {Lambda}{sub b}{sup 0}

Description: CDF Run II relative branching ratio measurements for 65 pb{sup -1} of data in the channels B{sub s} {yields} D{sub s}{sup {-+}}{pi}{sup {-+}}, {Lambda} {sub b}{sup 0} {yields} {Lambda}{sub c}{sup {+-}}{pi}{sup {-+}} and B {yields} h{sup +}h{sup -} are presented. Further, an observation of B{sub s} {yields} K{sup {+-}} K{sup {-+}} and a measurement of A{sub CP} are presented.
Date: May 28, 2004
Creator: Martin, Matthew S.
Item Type: Refine your search to only Article
open access

Buoyancy-Driven Polymerase Chain Reaction (PCR) Devices

Description: Polymerase chain reaction (PCR) facilitates DNA detection by significantly increasing the concentration of specific DNA segments. A new class of PCR instruments uses a buoyancy-driven re-circulating flow to thermally cycle the DNA sample and benefits from reduced cycle times, low sample volumes, a miniaturized format, and low power consumption. This paper analyzes a specific buoyancy PCR device in a micro-channel ''race-track'' geometry to determine key parameters about PCR cycle times and othe… more
Date: September 28, 2004
Creator: Ness, K. D.; Wheeler, E. K.; Benett, W.; Stratton, P.; Christian, A.; Chen, A. et al.
Item Type: Refine your search to only Article
open access

Bureau of the Public Debt: Areas for Improvement in Computer Controls

Description: Correspondence issued by the General Accounting Office with an abstract that begins "In connection with fulfilling our requirement to audit the financial statements of the U.S. government, we audited and reported on the Schedules of Federal Debt Managed by the Bureau of the Public Debt (BPD) for the fiscal years ended September 30, 2003 and 2002. As part of these audits, we performed a review of the general and application computer controls over key BPD financial systems."
Date: May 28, 2004
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
Back to Top of Screen