Recess Appointments Made by President George W. Bush, January 20, 2001- October 31, 2008 (open access)

Recess Appointments Made by President George W. Bush, January 20, 2001- October 31, 2008

This report identifies recess appointments made by President George W. Bush from the time he took office on January 20, 2001, through October 31, 2008. Basic descriptive statistics regarding these appointments are also provided.
Date: November 3, 2008
Creator: Hogue, Henry B. & Bearden, Maureen
Object Type: Report
System: The UNT Digital Library
Dynamic versus Static Structure Functions and Novel Diffractive Effects in QCD (open access)

Dynamic versus Static Structure Functions and Novel Diffractive Effects in QCD

Initial- and final-state rescattering, neglected in the parton model, have a profound effect in QCD hard-scattering reactions, predicting single-spin asymmetries, diffractive deep inelastic scattering, diffractive hard hadronic reactions, the breakdown of the Lam Tung relation in Drell-Yan reactions, and nuclear shadowing and non-universal antishadowing--leading-twist physics not incorporated in the light-front wavefunctions of the target computed in isolation. I also discuss the use of diffraction to materialize the Fock states of a hadronic projectile and test QCD color transparency, and anomalous heavy quark effects. The presence of direct higher-twist processes where a proton is produced in the hard subprocess can explain the large proton-to-pion ratio seen in high centrality heavy ion collisions. I emphasize the importance of distinguishing between static observables such as the probability distributions computed from the square of the light-front wavefunctions versus dynamical observables which include the effects of rescattering.
Date: November 12, 2008
Creator: Brodsky, Stanley J.
Object Type: Article
System: The UNT Digital Library
Metabolic analysis of the soil microbe Dechloromonas aromatica str. RCB: indications of a surprisingly complex life-style and cryptic anaerobic pathways for aromatic degradation (open access)

Metabolic analysis of the soil microbe Dechloromonas aromatica str. RCB: indications of a surprisingly complex life-style and cryptic anaerobic pathways for aromatic degradation

Initial interest in Dechloromonas aromatica strain RCB arose from its ability to anaerobically degrade benzene. It is also able to reduce perchlorate and oxidize chlorobenzoate, toluene, and xylene, creating interest in using this organism for bioremediation. Little physiological data has been published for this microbe. It is considered to be a free-living organism. The a priori prediction that the D. aromatica genome would contain previously characterized 'central' enzymes involved in anaerobic aromatic degradation proved to be false, suggesting the presence of novel anaerobic aromatic degradation pathways in this species. These missing pathways include the benzyl succinyl synthase (bssABC) genes (responsible for formate addition to toluene) and the central benzoylCoA pathway for monoaromatics. In depth analyses using existing TIGRfam, COG, and InterPro models, and the creation of de novo HMM models, indicate a highly complex lifestyle with a large number of environmental sensors and signaling pathways, including a relatively large number of GGDEF domain signal receptors and multiple quorum sensors. A number of proteins indicate interactions with an as yet unknown host, as indicated by the presence of predicted cell host remodeling enzymes, effector enzymes, hemolysin-like proteins, adhesins, NO reductase, and both type III and type VI secretory complexes. Evidence of …
Date: November 17, 2008
Creator: Salinero, Kennan Kellaris; Keller, Keith; Feil, William S.; Feil, Helene; Trong, Stephan; Di Bartolo, Genevieve et al.
Object Type: Article
System: The UNT Digital Library
Energy Efficient Electrochromic Windows Incorporating Ionic Liquids (open access)

Energy Efficient Electrochromic Windows Incorporating Ionic Liquids

One approach to increasing the energy efficiency of windows is to control the amount of solar radiation transmitted through a window by using electrochromic technology. What is unique about this project is that the electrochromic is based on the reduction/oxidation reactions of cathodic and anodic organic semi-conducting polymers using room temperature ionic liquids as ion transport electrolytes. It is believed that these types of coatings would be a lower cost alternative to traditional all inorganic thin film based electrochromic technologies. Although there are patents1 based on the proposed technology, it has never been reduced to practice and thoroughly evaluated (i.e. durability and performance) in a window application. We demonstrate that by using organic semi-conductive polymers, specific bands of the solar spectrum (specifically visible and near infrared) can be targeted for electrochemical variable transmittance responsiveness. In addition, when the technology is incorporated into an insulating glass unit, the energy parameters such as the solar heat gain coefficient and the light to solar gain ratio are improved over that of a typical insulating glass unit comprised of glass with a low emissivity coating. A minimum of {approx}0.02 quads of energy savings per year with a reduction of carbon emissions for electricity of …
Date: November 30, 2008
Creator: Boykin, Cheri; Finley, James; Anthony, Donald; Knowles, Julianna; Markovic, Richard; Buchanan, Michael et al.
Object Type: Report
System: The UNT Digital Library
Emergency Communications: The Future of 911 (open access)

Emergency Communications: The Future of 911

Today's 911 system is built on an infrastructure of analog technology that does not support many of the features that most Americans expect are part of an emergency response. Recognizing the importance of providing effective 911 service, Congress has passed three major bills supporting improvements in the handling of 911 emergency calls. This report includes a detailed overview of the 911 system, as well as related legislation and policies currently in consideration by Congress.
Date: November 21, 2008
Creator: Moore, Linda K.
Object Type: Report
System: The UNT Digital Library
Texas EMS Magazine, Volume 29, Number 6, November/December 2008 (open access)

Texas EMS Magazine, Volume 29, Number 6, November/December 2008

Bimonthly magazine containing news and information that pertains to Emergency Medical Service (EMS) providers. "The magazine's goals are to help organizations function professionally as EMS providers, to educate individuals so they can perform lifesaving prehospital skills under stressful conditions, and to help the public get into the EMS system when they need it" (p. 4).
Date: November 2008
Creator: Texas. Department of State Health Services.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
EFFECTS OF CHEMISTRY AND OTHER VARIABLES ON CORROSION AND STRESS CORROSION CRACKING IN HANFORD DOUBLE SHELL TANKS (open access)

EFFECTS OF CHEMISTRY AND OTHER VARIABLES ON CORROSION AND STRESS CORROSION CRACKING IN HANFORD DOUBLE SHELL TANKS

Laboratory testing was performed to develop a comprehensive understanding of the corrosivity of the tank wastes stored in Double-Shell Tanks using simulants primarily from Tanks 241-AP-105, 241-SY-103 and 241-AW-105. Additional tests were conducted using simulants of the waste stored in 241-AZ-102, 241-SY-101, 241-AN-107, and 241-AY-101. This test program placed particular emphasis on defining the range of tank waste chemistries that do not induce the onset of localized forms of corrosion, particularly pitting and stress corrosion cracking. This document summarizes the key findings of the research program.
Date: November 13, 2008
Creator: MH, BROWN
Object Type: Report
System: The UNT Digital Library
Report of tritide study at the Responsive Neutron Generator Product Deployment Center. (open access)

Report of tritide study at the Responsive Neutron Generator Product Deployment Center.

This report documents a study of sample counting results for wipes from routine surface area monitoring conducted at the Responsive Neutron Generator Product Deployment Center (RNGPDC) at Sandia National Laboratories (SNL). The study was initiated in November 2006, with two samples suspected of containing erbium tritide, after some samples were found to exhibit higher tritium counting rates upon recount at a later time. The main goal of the study was to determine whether the current practice of analyzing tritium wipe samples once, within a few days of sample collection, is adequate to accurately quantify the amount of tritium on the sample when tritides may be present. Recommendations are made toward routine recounting of vials suspected of containing particulate forms of tritium.
Date: November 1, 2008
Creator: Burkhart, Robert & Coffey, Jaime
Object Type: Report
System: The UNT Digital Library