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Altus Times (Altus, Okla.), Vol. 105, No. 252, Ed. 1 Tuesday, January 6, 2004 (open access)

Altus Times (Altus, Okla.), Vol. 105, No. 252, Ed. 1 Tuesday, January 6, 2004

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: January 6, 2004
Creator: Andrews, Mike
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Individuals with Disabilities Education Act (IDEA): Implications of Selected Provisions of the No Child Left Behind Act (NCLBA) (open access)

The Individuals with Disabilities Education Act (IDEA): Implications of Selected Provisions of the No Child Left Behind Act (NCLBA)

None
Date: January 6, 2004
Creator: Apling, Richard N. & Jones, Nancy Lee
Object Type: Report
System: The UNT Digital Library
Static hybrid quarkonium potential with improved staggered quarks (open access)

Static hybrid quarkonium potential with improved staggered quarks

The authors are studying the effects of light dynamical quarks on the excitation energies of a flux tube between a static quark and antiquark. They report preliminary results of an analysis of the ground state potential and the {Sigma}{prime}{sub g}{sup +} and II{sub u} potentials. They have measured these potentials on closely matched ensembles of gauge configurations, generated in the quenched approximation and with 2+1 flavors of Asqtad improved staggered quarks.
Date: January 6, 2004
Creator: Bernard, C.
Object Type: Article
System: The UNT Digital Library
Topological susceptibility with the improved Asqtad action (open access)

Topological susceptibility with the improved Asqtad action

As a test of the chiral properties of the improved Asqtad (staggered fermion) action, we have been measuring the topological susceptibility as a function of quark masses for 2 + 1 dynamical flavors. We report preliminary results, which show reasonable agreement with leading order chiral perturbation theory for lattice spacing less than 0.1 fm. The total topological charge, however, shows strong persistence over Monte Carlo time.
Date: January 6, 2004
Creator: Bernard, C.
Object Type: Article
System: The UNT Digital Library
The Quest for Clouds and Volcanoes (open access)

The Quest for Clouds and Volcanoes

Elementary students are using the internet to experience virtual field trips to learn about areas that they are not able to experience in person. This poster presentation describes a virtual field trip taken by Mendoza Elementary School, Las Vegas, Nevada classes during the summer of 2003. The authors, who are DataStreme Learning Implementation Team members, drove from Las Vegas to Seattle for the annual DataStreme Summer Workshop. During the trip and in Seattle, the authors communicated through the internet with classrooms in Las Vegas. Weather information, pictures, and pertinent information about Seattle or the enroute area were sent to the classes each day. The students then compared the weather in Las Vegas with the weather and clouds from the communication. Fourth grade students were studying about volcanoes and were excited to hear about, and see pictures of, Mt. Shasta, Mt. Lassen, Mt. St. Helen and Mt. Rainier during the virtual field trip. Classes were able to track the route taken on a map during the virtual field trip.
Date: January 6, 2004
Creator: Blink, F. D. & Blink, J. A.
Object Type: Article
System: The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 88, No. 100, Ed. 1 Tuesday, January 6, 2004 (open access)

Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 88, No. 100, Ed. 1 Tuesday, January 6, 2004

Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date: January 6, 2004
Creator: Broaddus, Matthew B.
Object Type: Newspaper
System: The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 111, No. 3, Ed. 1 Tuesday, January 6, 2004 (open access)

Perry Daily Journal (Perry, Okla.), Vol. 111, No. 3, Ed. 1 Tuesday, January 6, 2004

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: January 6, 2004
Creator: Brown, Gloria
Object Type: Newspaper
System: The Gateway to Oklahoma History
Immigration: Alien Registration (open access)

Immigration: Alien Registration

This report reviews the process of temporary legal residents becoming registered as U.S. citizens while providing preliminary factors involved before registration.
Date: January 6, 2004
Creator: Bruno, Andorra
Object Type: Report
System: The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, January 6, 2004 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, January 6, 2004

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: January 6, 2004
Creator: Bush, Kent
Object Type: Newspaper
System: The Gateway to Oklahoma History
Electron exchange along the tercyclopentadienyltrimetallic scaffold: Kinetics, equilibria, and bond strengths (open access)

Electron exchange along the tercyclopentadienyltrimetallic scaffold: Kinetics, equilibria, and bond strengths

None
Date: January 6, 2004
Creator: Cammack, J. Kevin; Amouri, Hani; Leonard, Philip W.; Myrabo, Randy L. & Vollhardt, Peter C.
Object Type: Article
System: The UNT Digital Library
The Boerne Star (Boerne, Tex.), Vol. 98, No. 2, Ed. 1 Tuesday, January 6, 2004 (open access)

The Boerne Star (Boerne, Tex.), Vol. 98, No. 2, Ed. 1 Tuesday, January 6, 2004

Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date: January 6, 2004
Creator: Cartwright, Brian & Morgan, Clay
Object Type: Newspaper
System: The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 82, No. 35, Ed. 1 Tuesday, January 6, 2004 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 82, No. 35, Ed. 1 Tuesday, January 6, 2004

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: January 6, 2004
Creator: Cash, Wanda Garner
Object Type: Newspaper
System: The Portal to Texas History
A Sketch of Supreme Court Recognition of Fifth Amendment Protection for Acts of Production (open access)

A Sketch of Supreme Court Recognition of Fifth Amendment Protection for Acts of Production

This report discusses privilege under the Court Recognition of Fifth Amendment Protection for Acts of Production. The privilege covers an individual’s actions rather than his speech or writing, yet many incriminating actions such as providing a blood sample or a handwriting sample are ordinarily not protected because they are not testimonial.
Date: January 6, 2004
Creator: Doyle, Charles
Object Type: Report
System: The UNT Digital Library
Recent results using all point quark propagators (open access)

Recent results using all point quark propagators

Pseudofermion methods for extracting all-point quark propagators are reviewed, with special emphasis on techniques for reducing or eliminating autocorrelations induced by low eigenmodes of the quark Dirac operator. Recent applications, including high statistics evaluations of hadronic current correlators and the pion form factor, are also described.
Date: January 6, 2004
Creator: Duncan, A. & Yoo, E. Eichten and J.
Object Type: Article
System: The UNT Digital Library
Salaries of Members of Congress: A List of Payable Rates and Effective Dates, 1789-2004 (open access)

Salaries of Members of Congress: A List of Payable Rates and Effective Dates, 1789-2004

This report summarizes by what measures the Constitution requires Congress to determine its own pay, the annual payment adjustment procedure, changes in pay over time since 1789, and related legislation.
Date: January 6, 2004
Creator: Dwyer, Paul E.
Object Type: Report
System: The UNT Digital Library
The Sealy News (Sealy, Tex.), Vol. 117, No. 2, Ed. 1 Tuesday, January 6, 2004 (open access)

The Sealy News (Sealy, Tex.), Vol. 117, No. 2, Ed. 1 Tuesday, January 6, 2004

Semiweekly newspaper from Sealy, Texas that includes local, state, and national news along with advertising.
Date: January 6, 2004
Creator: Griffin, Joanie & Horecka, Bobby
Object Type: Newspaper
System: The Portal to Texas History
Rains County Leader (Emory, Tex.), Vol. 116, No. 30, Ed. 1 Tuesday, January 6, 2004 (open access)

Rains County Leader (Emory, Tex.), Vol. 116, No. 30, Ed. 1 Tuesday, January 6, 2004

Weekly newspaper from Emory, Texas that includes local, state, and national news along with advertising.
Date: January 6, 2004
Creator: Hill, Earl Clyde, Jr.
Object Type: Newspaper
System: The Portal to Texas History
Human intake fraction of toxic pollutants: a model comparison between caltox and uses-lca (open access)

Human intake fraction of toxic pollutants: a model comparison between caltox and uses-lca

In Life Cycle Assessment and Comparative Risk Assessment potential human exposure to toxic pollutants can be expressed as the human intake fraction (iF), representing the fraction of the quantity emitted that enters the human population. To assess model uncertainty in the human intake fraction, ingestion and inhalation iFs of 367 substances emitted to air and freshwater were calculated with two commonly applied multi-media fate and exposure models, CalTOX and USES-LCA. Comparison of the model outcomes reveal that uncertainty in the ingestion iFs was up to a factor of 70. The uncertainty in the inhalation iFs was up to a factor of 865,000. The comparison showed that relatively few model differences account for the uncertainties found. An optimal model structure in the calculation of human intake fractions can be achieved by including (1) rain and no-rain scenarios, (2) a continental sea water compartment, (3) drinking water purification, (4) pH-correction of chemical properties, and (5) aerosol-associated deposition on plants. Finally, vertical stratification of the soil compartment combined with a chemical-dependent soil depth may be considered in future intake fraction calculations.
Date: January 6, 2004
Creator: Huijbregts, Mark A.J.; Geelen, Loes M.J.; Hertwich, Edgar G.; McKone, Thomas E. & van de Meent, Dik
Object Type: Article
System: The UNT Digital Library
Single Molecule Studies of Chromatin (open access)

Single Molecule Studies of Chromatin

The DNA in eukaryotic cells is tightly packaged as chromatin through interactions with histone proteins to form nucleosomes. These nucleosomes are themselves packed together through interactions with linker histone and non-histone proteins. In order for processes such as DNA replication, DNA repair, and transcription to occur, the chromatin fiber must be remodeled such that the necessary enzymes can access the DNA. The structure of the chromatin fiber beyond the level of the single nucleosome and the structural changes which accompany the remodeling process are poorly understood. We are studying the structures and forces behind the remodeling process through the use of atomic force microscopy (AFM). This allows both high-resolution imaging of the chromatin, and manipulation of individual fibers. Pulling a single chromatin fiber apart using the AFM tip yields information on the forces which hold the structure together. We have isolated chromatin fibers from chicken erythrocytes and Chinese hamster ovary cell lines. AFM images of these fibers will be presented, along with preliminary data from the manipulation of these fibers using the AFM tip. The implications of these data for the structure of chromatin undergoing the remodeling process are discussed.
Date: January 6, 2004
Creator: Jeans, Christopher; Colvin, M. E.; Thelen, Michael P. & Noy, A.
Object Type: Article
System: The UNT Digital Library
Croatia: 2003 Elections and New Government (open access)

Croatia: 2003 Elections and New Government

This report analyzes the elections and key issues facing the new government of Croatia in 2003.
Date: January 6, 2004
Creator: Kim, Julie
Object Type: Report
System: The UNT Digital Library
Multiscale Thermohydrologic Model Analyses of Heterogeneity and Thermal-Loading Factors for a Proposed Nuclear Waste Repository (open access)

Multiscale Thermohydrologic Model Analyses of Heterogeneity and Thermal-Loading Factors for a Proposed Nuclear Waste Repository

The MultiScale ThermoHydrologic Model is used to predict thermal-hydrologic conditions in emplacement drifts and the adjoining host-rock throughout a proposed nuclear waste repository. The presented modeling effort simulates a lower temperature operation mode with a different panel loading than the repository currently being considered for the Yucca Mountain license application. Simulations address the influence of repository-scale thermal-conductivity heterogeneity and the influence of pre-closure operational factors on thermal-loading conditions. MSTHM can accommodate a complex repository layout, a development that, along with other improvements, enables more rigorous analyses of preclosure operational factors. Differences in MSTHM output occurring with these new capabilities are noted for a new sequential waste-package loading technique compared to a standard simultaneous loading technique. Alternative approaches to modeling repository-scale thermal-conductivity heterogeneity in the host-rock units are investigated, and study incorporating geostatistically-varied host-rock thermal conductivity is discussed.
Date: January 6, 2004
Creator: Lee, K.; Buscheck, T. A.; Gansemer, J.; Glascoe, L. G. & Sun, Y.
Object Type: Article
System: The UNT Digital Library
ECR Browser: A Tool For Visualizing And Accessing Data From Comparisons Of Multiple Vertebrate Genomes (open access)

ECR Browser: A Tool For Visualizing And Accessing Data From Comparisons Of Multiple Vertebrate Genomes

The increasing number of vertebrate genomes being sequenced in draft or finished form provide a unique opportunity to study and decode the language of DNA sequence through comparative genome alignments. However, novel tools and strategies are required to accommodate this increasing volume of genomic information and to facilitate experimental annotation of genome function. Here we present the ECR Browser, a tool that provides an easy and dynamic access to whole genome alignments of human, mouse, rat and fish sequences. This web-based tool (http://ecrbrowser.dcode.org) provides the starting point for discovery of novel genes, identification of distant gene regulatory elements and prediction of transcription factor binding sites. The genome alignment portal of the ECR Browser also permits fast and automated alignment of any user-submitted sequence to the genome of choice. The interconnection of the ECR browser with other DNA sequence analysis tools creates a unique portal for studying and exploring vertebrate genomes.
Date: January 6, 2004
Creator: Loots, G G; Ovcharenko, I; Stubbs, L & Nobrega, M A
Object Type: Article
System: The UNT Digital Library
Proteomic Dissection of the Mitochondrial DNA Metabolism Apparatus in Arabidopsis (open access)

Proteomic Dissection of the Mitochondrial DNA Metabolism Apparatus in Arabidopsis

This study involves the investigation of nuclear genetic components that regulate mitochondrial genome behavior in higher plants. The approach utilizes the advanced plant model system of Arabidopsis thaliana to identify and functionally characterize multiple components of the mitochondrial DNA replication, recombination and mismatch repair system and their interaction partners. The rationale for the research stems from the central importance of mitochondria to overall cellular metabolism and the essential nature of the mitochondrial genome to mitochondrial function. Relatively little is understood about mitochondrial DNA maintenance and transmission in higher eukaryotes, and the higher plant mitochondrial genome displays unique properties and behavior. This investigation has revealed at least three important properties of plant mitochondrial DNA metabolism components. (1) Many are dual targeted to mitochondrial and chloroplasts by novel mechanisms, suggesting that the mitochondria a nd chloroplast share their genome maintenance apparatus. (2)The MSH1 gene, originating as a component of mismatch repair, has evolved uniquely in plants to participate in differential replication of the mitochondrial genome. (3) This mitochondrial differential replication process, termed substoichiometric shifting and also involving a RecA-related gene, appears to represent an adaptive mechanism to expand plant reproductive capacity and is likely present throughout the plant kingdom.
Date: January 6, 2004
Creator: Mackenzie, SAlly A.
Object Type: Report
System: The UNT Digital Library
Surface Structure and Chemical Switching of Thioctic Acid Adsorbed on Au(111) as Observed Using Near-Edge X-ray Absorption Fine Structure (open access)

Surface Structure and Chemical Switching of Thioctic Acid Adsorbed on Au(111) as Observed Using Near-Edge X-ray Absorption Fine Structure

Thioctic acid (alpha-lipoic acid) is a molecule with a large disulfide-containing base, a short alkyl-chain with four CH{sub 2} units, and a carboxyl termination. Self-assembled monolayer (SAM) films of thioctic acid adsorbed on Au(111) have been investigated with near-edge x-ray absorption fine structure (NEXAFS) spectroscopy and x-ray photoelectron spectroscopy (XPS) to determine film quality, bonding and morphology. Using standard preparation protocols for SAMs, that is, dissolving thioctic acid in ethanol and exposing gold to the solution, results in poor films. These films are highly disordered, contain a mixture of carboxyl and carboxylate terminations, have more than monolayer coverage, and exhibit unbound disulfide. Conversely, forming films by dissolving 1 mmol thioctic acid into 5% acetic acid in ethanol (as previously reported with carboxyl-terminated alkyl-thiols) forms ordered monolayers with small amounts of unbound sulfur. NEXAFS indicates tilted over endgroups with the carboxyl group normal on average 38{sup o} from the surface normal. Slight dichroism in other features indicates alkyl chains statistically more upright than prostrate on the surface. Reflection-absorption Fourier transform infrared (RA-FTIR) spectra indicate hydrogen bonding between neighboring molecules. In such well-formed monolayers, a stark reorientation occurs upon deprotonation of the endgroup by rinsing in a KOH solution. The carboxylate plane …
Date: January 6, 2004
Creator: Meulenberg, R W; van Buuren, T; Vance, A L; Terminello, L J; Willey, T M; Bostedt, C et al.
Object Type: Article
System: The UNT Digital Library