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The Incremental Marketization and Centralization of State Control of Public Higher Education: A Hermeneutic Interpretation of Legislative and Administrative Texts (open access)

The Incremental Marketization and Centralization of State Control of Public Higher Education: A Hermeneutic Interpretation of Legislative and Administrative Texts

This article reports on an analysis and interpretation of institutional accountability legislation enacted by the Colorado General Assembly from 1985 to 2005.
Date: September 1, 2006
Creator: Harbour, Clifford P.
System: The UNT Digital Library
Development of TQC01, a 90 mm Nb3 Sn Model Quadrupole for LHC Upgrade Based on SS Collar (open access)

Development of TQC01, a 90 mm Nb3 Sn Model Quadrupole for LHC Upgrade Based on SS Collar

As a first step toward the development of a large-aperture Nb{sub 3}Sn superconducting quadrupole for the Large Hadron Collider (LHC) luminosity upgrade, two-layer technological quadrupole models (TQS01 at LBNL and TQC01 at Fermilab) are being constructed within the framework of the US LHC Accelerator Research Program (LARP). Both models use the same coil design, but have different coil support structures. This paper describes the TQC01 design, fabrication technology and summarizes its main parameters.
Date: June 1, 2006
Creator: Bossert, R. C.; Ambrosio, G.; Andreev, N.; Barzi, E.; Caspi, S.; Dietderich, D. R. et al.
System: The UNT Digital Library
Optimizing Dam Operations for Power and for Fish: an Overview of the US Department of Energy and US Army Corps of Engineers ADvanced Turbine Development R&D. A Pre-Conference Workshop at HydroVision 2006, Oregon Convention Center, Portland, Oregon July 31, 2006 (open access)

Optimizing Dam Operations for Power and for Fish: an Overview of the US Department of Energy and US Army Corps of Engineers ADvanced Turbine Development R&D. A Pre-Conference Workshop at HydroVision 2006, Oregon Convention Center, Portland, Oregon July 31, 2006

This booklet contains abstracts of presentations made at a preconference workshop on the US Department of Energy and US Army Corps of Engineers hydroturbine programs. The workshop was held in conjunction with Hydrovision 2006 July 31, 2006 at the Oregon Convention Center in Portland Oregon. The workshop was organized by the Corps of Engineers, PNNL, and the DOE Wind and Hydropower Program. Presenters gave overviews of the Corps' Turbine Survival Program and the history of the DOE Advanced Turbine Development Program. They also spoke on physical hydraulic models, biocriteria for safe fish passage, pressure investigations using the Sensor Fish Device, blade strike models, optimization of power plant operations, bioindex testing of turbine performance, approaches to measuring fish survival, a systems view of turbine performance, and the Turbine Survival Program design approach.
Date: August 1, 2006
Creator: Dauble, Dennis D.
System: The UNT Digital Library
17th International Conference on Arabidopsis Research (open access)

17th International Conference on Arabidopsis Research

The 17th International Conference on Arabidopsis Research was held at the University of Madison, Wisconsin from June 27- July 2, 2006. ICAR-2006 included approximately 625 scientists from across the world. The scientific program was of excellent quality featuring 73 talks, including 30 from invited speakers. There were also 6 community-organized workshops (facilitated by conference staff) featuring additional talks on topics including ‘Submitting data to long-term repositories,’ ‘TAIR introductory workshop,’ ‘Web services and demonstration,’ ‘Public engagement: broadening the impact of your research,’ ‘Systems biology approaches to analysis of metabolic and regulatory networks of Arabidopsis,’ and ‘Mechanotransduction in Arabidopsis.’ Approximately 440 posters were presented in general topic areas including, among others, Development, Modeling/Other Systems, Energy, Environment, and Genetic/Epigenetic mechanisms. Graduate students, postdoctoral researchers, junior faculty, and underrepresented minorities made up a significant portion of the oral presentations thereby promoting the training of young scientists and facilitating important career development opportunities for speakers. Several poster sessions provided an opportunity for younger participants to freely meet with more established scientists. The North American Arabidopsis Steering Committee (NAASC) continued its outreach effort and again sponsored two special luncheons to encourage personal and professional development of young scientists and also underrepresented minorities. The ‘Emerging Scientists Luncheon’ …
Date: July 1, 2006
Creator: Bender, Judith
System: The UNT Digital Library
Meeting Report: Towards the Visualization of Genome Activity at Nanoscale Dimensions (open access)

Meeting Report: Towards the Visualization of Genome Activity at Nanoscale Dimensions

A report on the Fifth Annual Nanostructural Genomics meeting, Bar Harbor, USA, 7-10 September 2005.
Date: February 1, 2006
Creator: Ritland Politz, Joan C
System: The UNT Digital Library
Round and Extracted Nb3Sn Strand Tests for LARP Magnet R&D (open access)

Round and Extracted Nb3Sn Strand Tests for LARP Magnet R&D

The first step in the magnet R&D of the U.S. LHC Accelerator Research Program (LARP) is fabrication of technology quadrupoles TQS01 and TQC01. These are two-layer magnets which use cables of same geometry made of 0.7 mm MJR Nb{sub 3}Sn. Through strand billet qualification and tests of strands extracted from the cables, predictions of magnet performance are made. Measurements included the critical current, I{sub c}, using the voltage-current (VI) method at constant field, the stability current, I{sub S}, as the minimal quench current obtained with the voltage-field (VH) method at constant current in the sample, and RRR. Magnetization was measured at low and high fields to determine the effective filament size and to detect flux jumps. Effects of heat treatment duration and temperature on I{sub c} and I{sub S} were also studied. The Nb{sub 3}Sn strand and cable samples, the equipment, measurement procedures, and results are described. Based on these results, strand specifications were formulated for next LARP quadrupole models.
Date: June 1, 2006
Creator: Barzi, Emanuela; Bossert, Rodger; Caspi, Shlomo; Dietderich, Dan; Ferracin, Paolo; Ghosh, Arup et al.
System: The UNT Digital Library
Metagenomic Analysis of Microbial Symbionts in a Gutless Worm (open access)

Metagenomic Analysis of Microbial Symbionts in a Gutless Worm

Symbioses between bacteria and eukaryotes are ubiquitous, yet our understanding of the interactions driving these associations is hampered by our inability to cultivate most host-associated microbes. Here we use a metagenomic approach to describe four co-occurring symbionts from the marine oligochaete Olavius algarvensis, a worm lacking a mouth, gut and nephridia. Shotgun sequencing and metabolic pathway reconstruction revealed that the symbionts are sulphur-oxidizing and sulphate-reducing bacteria, all of which are capable of carbon fixation, thus providing the host with multiple sources of nutrition. Molecular evidence for the uptake and recycling of worm waste products by the symbionts suggests how the worm could eliminate its excretory system, an adaptation unique among annelid worms. We propose a model that describes how the versatile metabolism within this symbiotic consortium provides the host with an optimal energy supply as it shuttles between the upper oxic and lower anoxic coastal sediments that it inhabits.
Date: May 1, 2006
Creator: Woyke, Tanja; Teeling, Hanno; Ivanova, Natalia N.; Hunteman, Marcel; Richter, Michael; Gloeckner, Frank Oliver et al.
System: The UNT Digital Library
Circuit simulation: some humbling thoughts (open access)

Circuit simulation: some humbling thoughts

A short, very personal note on circuit simulation is presented. It does neither include theoretical background on circuit simulation, nor offers an overview of available software, but just gives some general remarks for a discussion on circuit simulator needs in context to the design and development of accelerator beam instrumentation circuits and systems.
Date: January 1, 2006
Creator: Wendt, Manfred
System: The UNT Digital Library
Magnet R&D for the US LHC Accelerator Research Program (LARP) (open access)

Magnet R&D for the US LHC Accelerator Research Program (LARP)

In 2004, the US DOE established the LHC Accelerator Research Program (LARP) with the goal of developing a technology base for future upgrades of the LHC. The focus of the magnet program, which is a collaboration of three US laboratories, BNL, FNAL and LBNL, is on development of high gradient quadrupoles using Nb{sub 3}Sn superconductor. Other program components address issues regarding magnet design, radiation-hard materials, long magnet scale-up, quench protection, fabrication techniques and conductor and cable R&D. This paper presents an overall view of the program with emphasis on the current quadrupole project and outlines the long-term goals of the program.
Date: June 1, 2006
Creator: Gourlay, S. A.; Ambrosio, G.; Andreev, N.; Anerella, M.; Barzi, E.; Bossert, R. et al.
System: The UNT Digital Library
Stochastic Transport Modeling of Resonant Magnetic Perturbations in DIII-D (open access)

Stochastic Transport Modeling of Resonant Magnetic Perturbations in DIII-D

Three-dimensional two-fluid simulations of heat transport due to resonant magnetic perturbations of tokamaks have been computed by coupling the TRIP3D field line tracing code to the E3D edge transport code. The predicted electron temperature contours follow the new separatrix represented by the perturbed invariant manifold structure of the X-point in qualitative agreement with X-point TV observations. However, preliminary modeling predicts that the resulting stochastic heat transport is greater than that measured in low-collisionality ELM suppression experiments in DIII-D H-mode plasmas. While improved determination of transport coefficients is definitely required, possible explanations include plasma screening of resonant perturbations, invalid treatment of the edge as a fluid, or insufficient understanding of stochastic heat transport.
Date: June 1, 2006
Creator: Joseph, I.; Moyer, R. A.; Evans, T. E.; Schaffer, M. J.; Runov, A. M.; Schneider, R. et al.
System: The UNT Digital Library
Long Pulse High Performance Plasma Scenario Development for the National Spherical Torus Experiment (open access)

Long Pulse High Performance Plasma Scenario Development for the National Spherical Torus Experiment

The National Spherical Torus Experiment [Ono et al., Nucl. Fusion, 44, 452 (2004)] is targeting long pulse high performance, noninductive sustained operations at low aspect ratio, and the demonstration of nonsolenoidal startup and current rampup. The modeling of these plasmas provides a framework for experimental planning and identifies the tools to access these regimes. Simulations based on neutral beam injection (NBI)-heated plasmas are made to understand the impact of various modifications and identify the requirements for (1) high elongation and triangularity, (2) density control to optimize the current drive, (3) plasma rotation and/or feedback stabilization to operate above the no-wall limit, and (4) electron Bernstein waves (EBW) for off-axis heating/current drive (H/CD). Integrated scenarios are constructed to provide the transport evolution and H/CD source modeling, supported by rf and stability analyses. Important factors include the energy confinement, Zeff, early heating/H mode, broadening of the NBI-driven current profile, and maintaining q(0) and qmin>1.0. Simulations show that noninductive sustained plasmas can be reached at IP=800 kA, BT=0.5 T, 2.5, N5, 15%, fNI=92%, and q(0)>1.0 with NBI H/CD, density control, and similar global energy confinement to experiments. The noninductive sustained high plasmas can be reached at IP=1.0 MA, BT=0.35 T, 2.5, N9, 43%, …
Date: January 1, 2006
Creator: Kessel, C.E.; Bell, R.E.; Bell, M.G.; Gates, D.A. & Harvey, R.W.
System: The UNT Digital Library
Comparison groups on bills: Automated, personalized energy information (open access)

Comparison groups on bills: Automated, personalized energy information

A program called ``Innovative Billing?? has been developed to provide individualized energy information for a mass audience?the entireresidential customer base of an electric or gas utility. Customers receive a graph on the bill that compares that customer?s consumption with othersimilar customers for the same month. The program aims to stimulate customers to make ef?ciency improvements. To group as many as severalmillion customers into small ``comparison groups??, an automated method must be developed drawing solely from the data available to the utility.This paper develops and applies methods to compare the quality of resulting comparison groups.A data base of 114,000 customers from a utility billing system was used to evaluate Innovative Billing comparison groups, comparing fouralternative criteria: house characteristics (?oor area, housing type, and heating fuel); street; meter read route; billing cycle. Also, customers wereinterviewed to see what forms of comparison graphs made most sense and led to fewest errors of interpretation. We ?nd that good qualitycomparison groups result from using street name, meter book, or multiple house characteristics. Other criteria we tested, such as entire cycle, entiremeter book, or single house characteristics such as ?oor area, resulted in poor quality comparison groups. This analysis provides a basis forchoosing comparison groups based …
Date: July 1, 2006
Creator: Iyer, Maithili; Kempton, Willett & Payne, Christopher
System: The UNT Digital Library
Comparative Genome Analysis in the Integrated Microbial Genomes (IMG) System (open access)

Comparative Genome Analysis in the Integrated Microbial Genomes (IMG) System

Comparative genome analysis is critical for the effectiveexploration of a rapidly growing number of complete and draft sequencesfor microbial genomes. The Integrated Microbial Genomes (IMG) system(img.jgi.doe.gov) has been developed as a community resource thatprovides support for comparative analysis of microbial genomes in anintegrated context. IMG allows users to navigate the multidimensionalmicrobial genome data space and focus their analysis on a subset ofgenes, genomes, and functions of interest. IMG provides graphicalviewers, summaries and occurrence profile tools for comparing genes,pathways and functions (terms) across specific genomes. Genes can befurther examined using gene neighborhoods and compared with sequencealignment tools.
Date: March 1, 2006
Creator: Kyrpides, Nikos C. & Markowitz, Victor M.
System: The UNT Digital Library
Modeling the Integrated Performance of Dispersion and Monolithic U-Mo Based Fuels (open access)

Modeling the Integrated Performance of Dispersion and Monolithic U-Mo Based Fuels

The evaluation and prediction of integrated fuel performance is a critical component of the Reduced Enrichment for Research and Test Reactors (RERTR) program. The PLATE code is the primary tool being developed and used to perform these functions. The code is being modified to incorporate the most recent fuel/matrix interaction correlations as they become available for both aluminum and aluminum/silicon matrices. The code is also being adapted to treat cylindrical and square pin geometries to enhance the validation database by including the results gathered from various international partners. Additional modeling work has been initiated to evaluate the thermal and mechanical performance requirements unique to monolithic fuels during irradiation.
Date: October 1, 2006
Creator: Wachs, Daniel M.; Burkes, Douglas E.; Hayes, Steven L.; Moore, Karen; Miller, Greg; Hofman, Gerard et al.
System: The UNT Digital Library
The Role of Emerging Technologies in Improving Energy Efficiency:Examples from the Food Processing Industry (open access)

The Role of Emerging Technologies in Improving Energy Efficiency:Examples from the Food Processing Industry

None
Date: May 1, 2006
Creator: Lung, Robert Bruce; Masanet, Eric & McKane, Aimee
System: The UNT Digital Library
In Vivo Enhancer Analysis Chromosome 16 Conserved NoncodingSequences (open access)

In Vivo Enhancer Analysis Chromosome 16 Conserved NoncodingSequences

The identification of enhancers with predicted specificitiesin vertebrate genomes remains a significant challenge that is hampered bya lack of experimentally validated training sets. In this study, weleveraged extreme evolutionary sequence conservation as a filter toidentify putative gene regulatory elements and characterized the in vivoenhancer activity of human-fish conserved and ultraconserved1 noncodingelements on human chromosome 16 as well as such elements from elsewherein the genome. We initially tested 165 of these extremely conservedsequences in a transgenic mouse enhancer assay and observed that 48percent (79/165) functioned reproducibly as tissue-specific enhancers ofgene expression at embryonic day 11.5. While driving expression in abroad range of anatomical structures in the embryo, the majority of the79 enhancers drove expression in various regions of the developingnervous system. Studying a set of DNA elements that specifically droveforebrain expression, we identified DNA signatures specifically enrichedin these elements and used these parameters to rank all ~;3,400human-fugu conserved noncoding elements in the human genome. The testingof the top predictions in transgenic mice resulted in a three-foldenrichment for sequences with forebrain enhancer activity. These datadramatically expand the catalogue of in vivo-characterized human geneenhancers and illustrate the future utility of such training sets for avariety of iological applications including decoding the regulatoryvocabulary of …
Date: February 1, 2006
Creator: Pennacchio, Len A.; Ahituv, Nadav; Moses, Alan M.; Nobrega,Marcelo; Prabhakar, Shyam; Shoukry, Malak et al.
System: The UNT Digital Library
In Vivo Characterization of Human APOA5 Haplotypes (open access)

In Vivo Characterization of Human APOA5 Haplotypes

Increased plasma triglycerides concentrations are an independent risk factor for cardiovascular disease. Numerous studies support a reproducible genetic association between two minor haplotypes in the human apolipoprotein A5 gene (APOA5) and increased plasma triglyceride concentrations. We thus sought to investigate the effect of these minor haplotypes (APOA5*2 and APOA5*3) on ApoAV plasma levels through the precise insertion of single-copy intact APOA5 haplotypes at a targeted location in the mouse genome. While we found no difference in the amount of human plasma ApoAV in mice containing the common APOA5*1 and minor APOA5*2 haplotype, the introduction of the single APOA5*3 defining allele (19W) resulted in 3-fold lower ApoAV plasma levels consistent with existing genetic association studies. These results indicate that S19W polymorphism is likely to be functional and explain the strong association of this variant with plasma triglycerides supporting the value of sensitive in vivo assays to define the functional nature of human haplotypes.
Date: October 1, 2006
Creator: Ahituv, Nadav; Akiyama, Jennifer; Chapman-Helleboid, Audrey; Fruchart, Jamila & Pennacchio, Len A.
System: The UNT Digital Library
Heavy Flavor Measurements at RHIC in the Near Future (open access)

Heavy Flavor Measurements at RHIC in the Near Future

We discuss the recent results on open charm measurements at RHIC. The heavy flavor upgrade program for both PHENIX and STAR experiments are briefly discussed. The completion of the program will yield important information on light flavor thermalization of the partonic matter created in high-energy nuclear collisions at RHIC. A new era of RHIC is ahead of us with the progress of the upgrade program.
Date: December 1, 2006
Creator: Xu, Nu
System: The UNT Digital Library
GeV electron beams from a laser-plasma accelerator (open access)

GeV electron beams from a laser-plasma accelerator

High-quality electron beams with up to 1 GeV energy havebeen generated by a laser-driven plasma-based accelerator by guiding a 40TW peak power laser pulse in a 3.3 cm long gas-filled capillary dischargewaveguide.
Date: October 1, 2006
Creator: Schroeder, C. B.; Tóth, Cs.; Nagler, B.; Gonsalves, A. J.; Nakamura, K.; Geddes, C. G. R. et al.
System: The UNT Digital Library
Transport and Deposition of 13c From Methane Injection into Detached H-Mode Plasmas in DIII-D (open access)

Transport and Deposition of 13c From Methane Injection into Detached H-Mode Plasmas in DIII-D

Experiments are described which examine the transport and deposition of carbon entering the main plasma scrape-off layer in DIII-D. {sup 13}CH{sub 4} was injected from a toroidally symmetric source into the crown of lower single-null detached ELMy H-mode plasmas. {sup 13}C deposition, mapped by nuclear reaction analysis of tiles, was high at the inner divertor but absent at the outer divertor, as found previously for low density L-mode plasmas. This asymmetry indicates that ionized carbon is swept towards the inner divertor by a fast flow in the scrape-off layer. In the private flux region between inner and outer strike points, carbon deposition was low for L-mode but high for the H-mode plasmas. OEDGE modeling reproduces observed deposition patterns and indicates that neutral carbon dominates deposition in the divertor from detached H-mode plasmas.
Date: June 1, 2006
Creator: Wampler, W. R.; McLean, A. G.; Allen, S. L.; Brooks, N. H.; Elder, J. D.; Fenstermacher, M. E. et al.
System: The UNT Digital Library
Low energy spread 100 MeV-1 GeV electron bunches from laserwakefiel d acceleration at LOASIS (open access)

Low energy spread 100 MeV-1 GeV electron bunches from laserwakefiel d acceleration at LOASIS

Experiments at the LOASIS laboratory of LBNL recentlydemonstrated production of 100 MeV electron beams with low energy spreadand low divergence from laser wakefield acceleration. The radiationpressure of a 10 TW laser pulse guided over 10 diffraction ranges by aplasma density channel was used to drive an intense plasma wave(wakefield), producing acceleration gradients on the order of 100 GV/m ina mm-scale channel. Beam energy has now been increased from 100 to 1000MeV by using a cm-scale guiding channel at lower density, driven by a 40TW laser, demonstrating the anticipated scaling to higher beam energies.Particle simulations indicate that the low energy spread beams wereproduced from self trapped electrons through the interplay of trapping,loading, and dephasing. Other experiments and simulations are alsounderway to control injection of particles into the wake, and henceimprove beam quality and stability further.
Date: August 1, 2006
Creator: Geddes, C. G. R.; Esarey, E.; Michel, P.; Nagler, B.; Nakamura, K.; Plateau, G. R. et al.
System: The UNT Digital Library
Special Issue On Estimation Of Baselines And Leakage In CarbonMitigation Forestry Projects (open access)

Special Issue On Estimation Of Baselines And Leakage In CarbonMitigation Forestry Projects

There is a growing acceptance that the environmentalbenefits of forests extend beyond traditional ecological benefits andinclude the mitigation of climate change. Interest in forestry mitigationactivities has led to the inclusion of forestry practices at the projectlevel in international agreements. Climate change activities place newdemands on participating institutions to set baselines, establishadditionality, determine leakage, ensure permanence, and monitor andverify a project's greenhouse gas benefits. These issues are common toboth forestry and other types of mitigation projects. They demandempirical evidence to establish conditions under which such projects canprovide sustained long term global benefits. This Special Issue reportson papers that experiment with a range of approaches based on empiricalevidence for the setting of baselines and estimation of leakage inprojects in developing Asia and Latin America.
Date: June 1, 2006
Creator: Sathaye, Jayant A. & Andrasko, Kenneth
System: The UNT Digital Library
Clean Slate Environmental Remediation DSA for 10 CFR 830 Compliance (open access)

Clean Slate Environmental Remediation DSA for 10 CFR 830 Compliance

Clean Slate Sites II and III are scheduled for environmental remediation (ER) to remove elevated levels of radionuclides in soil. These sites are contaminated with legacy remains of non-nuclear yield nuclear weapons experiments at the Nevada Test Site, that involved high explosive, fissile, and related materials. The sites may also hold unexploded ordnance (UXO) from military training activities in the area over the intervening years. Regulation 10 CFR 830 (Ref. 1) identifies DOE-STD-1120-98 (Ref. 2) and 29 CFR 1910.120 (Ref. 3) as the safe harbor methodologies for performing these remediation operations. Of these methodologies, DOE-STD-1120-98 has been superseded by DOE-STD-1120-2005 (Ref. 4). The project adopted DOE-STD-1120-2005, which includes an approach for ER projects, in combination with 29 CFR 1910.120, as the basis documents for preparing the documented safety analysis (DSA). To securely implement the safe harbor methodologies, we applied DOE-STD-1027-92 (Ref. 5) and DOE-STD-3009-94 (Ref. 6), as needed, to develop a robust hazard classification and hazards analysis that addresses non-standard hazards such as radionuclides and UXO. The hazard analyses provided the basis for identifying Technical Safety Requirements (TSR) level controls. The DOE-STD-1186-2004 (Ref. 7) methodology showed that some controls warranted elevation to Specific Administrative Control (SAC) status. In addition to …
Date: August 1, 2006
Creator: James L. Traynor, Stephen L. Nicolosi, Michael L. Space, Louis F. Restrepo
System: The UNT Digital Library
OEDGE Modeling of the DIII-D H-Mode 13CH4 Puffing Experiment (open access)

OEDGE Modeling of the DIII-D H-Mode 13CH4 Puffing Experiment

Use of carbon in tokamaks leads to a serious tritium retention issue due to co-deposition. To further investigate the processes involved, a detached ELMy H-mode (6.5 MW NBI) experiment was performed on DIII-D in which {sup 13}CH{sub 4} was puffed into the main vessel through the toroidally symmetric pumping plenum at the top of lower single-null discharges. Subsequently, the {sup 13}C content of tiles taken from the vessel wall was measured. The interpretive OEDGE code was used to model the results. The {sup 13}C deposition pattern could be reproduced, in general shape and magnitude, by assuming in the code the existence of a parallel flow and a radial pinch in the scrape-off layer. Parallel flows of Mach {approx} 0.3 toward the inner divertor and a radial pinch {approx}10 to 20 m/s (+ R-direction) were found to yield {sup 13}C deposition comparable to the experiment.
Date: June 1, 2006
Creator: Elder, J. D.; McLean, A. G.; Stangeby, P. C.; Allen, S. L.; Boedo, J. C.; Bray, B. D. et al.
System: The UNT Digital Library