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Congressional Restrictions on U.S. Military Operations in Vietnam, Cambodia, Laos, Somalia, and Kosovo: Funding and Non-Funding Approaches (open access)

Congressional Restrictions on U.S. Military Operations in Vietnam, Cambodia, Laos, Somalia, and Kosovo: Funding and Non-Funding Approaches

This report discusses the political context and congressional consideration of various funding and other restrictive legislative language applying to military operations in Indochina between 1970 and 1973.It briefly mentions similar congressional actions applying to U.S. military operations in Somalia in 1993 and Kosovo in 1999.
Date: May 7, 2007
Creator: Belasco, Amy; Cunningham, Lynn J.; Fischer, Hannah & Niksch, Larry A.
Object Type: Report
System: The UNT Digital Library
Prescription Drug Importation and Internet Sales: A Legal Overview (open access)

Prescription Drug Importation and Internet Sales: A Legal Overview

This report details the legal side of importation of prescription drugs as well as the sale of prescription drugs online. Updated May 7, 2007.
Date: May 7, 2007
Creator: Burrows, Vanessa K.
Object Type: Report
System: The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Monday, May 7, 2007 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Monday, May 7, 2007

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: May 7, 2007
Creator: Bush, Kent
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 108, No. 344, Ed. 1 Monday, May 7, 2007 (open access)

The Altus Times (Altus, Okla.), Vol. 108, No. 344, Ed. 1 Monday, May 7, 2007

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: May 7, 2007
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
Millisecond Kinetics of Nanocrystal Cation Exchange Using Microfluidic X-ray Absorption Spectroscopy (open access)

Millisecond Kinetics of Nanocrystal Cation Exchange Using Microfluidic X-ray Absorption Spectroscopy

We describe the use of a flow-focusing microfluidic reactorto measure the kinetics of theCdSe-to-Ag2Se nanocrystal cation exchangereaction using micro-X-ray absorption spectroscopy (mu XAS). The smallmicroreactor dimensions facilitate the millisecond mixing of CdSenanocrystal and Ag+ reactant solutions, and the transposition of thereaction time onto spatial coordinates enables the in situ observation ofthe millisecond reaction with mu XAS. XAS spectra show the progression ofCdSe nanocrystals to Ag2Se over the course of 100 ms without the presenceof long-lived intermediates. These results, along with supporting stoppedflow absorption experiments, suggest that this nanocrystal cationexchange reaction is highly efficient and provide insight into how thereaction progresses in individual particles. This experiment illustratesthe value and potential of in situ microfluidic X-ray synchrotrontechniques for detailed studies of the millisecond structuraltransformations of nanoparticles and other solution-phase reactions inwhich diffusive mixing initiates changes in local bond structures oroxidation states.
Date: May 7, 2007
Creator: Chan, Emory M.; Marcus, Matthew A.; Fakra, Sirine; Elnaggar, Mariam S.; Mathies, Richard A. & Alivisatos, A. Paul
Object Type: Article
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 86, No. 161, Ed. 1 Monday, May 7, 2007 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 86, No. 161, Ed. 1 Monday, May 7, 2007

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: May 7, 2007
Creator: Clements, Clifford E.
Object Type: Newspaper
System: The Portal to Texas History
Engineered Aerosol Production for Laboratory Scale Chemical / Biological Test and Evaluation (open access)

Engineered Aerosol Production for Laboratory Scale Chemical / Biological Test and Evaluation

None
Date: May 7, 2007
Creator: Dougherty, G M; Hadley, D R; O'Connor, P R & Bottiger, J R
Object Type: Report
System: The UNT Digital Library
The Zeta Potential of Surface-Functionalized Metallic Nanorod Particles in Aqueous Solution (open access)

The Zeta Potential of Surface-Functionalized Metallic Nanorod Particles in Aqueous Solution

Metallic nanoparticles suspended in aqueous solutions, and functionalized with chemical and biological surface coatings, are important elements in basic and applied nanoscience research. Many applications require an understanding of the electrokinetic or colloidal properties of such particles. In this paper we describe the results of experiments to measure the zeta potential of metallic nanorod particles in aqueous saline solutions, including the effects of pH, ionic strength, metallic composition, and surface functionalization state. Particle substrates tested include gold, silver, and palladium monometallic particles as well as gold/silver bimetallic particles. Surface functionalization conditions included 11-mercaptoundecanoic acid (MUA), mercaptoethanol (ME), and mercaptoethanesulfonic acid (MESA) self-assembled monolayers (SAMs), as well as MUA layers subsequently derivatized with proteins. Zeta potential data for typical charge-stabilized polystyrene particles are also presented for comparison. Experimental data are compared with theory. The results of these studies are useful in predicting and controlling the aggregation, adhesion, and transport of functionalized metallic nanoparticles within microfluidic devices and other systems.
Date: May 7, 2007
Creator: Dougherty, G M; Rose, K A; Tok, J B; Pannu, S S; Chuang, F S; Sha, M Y et al.
Object Type: Article
System: The UNT Digital Library
Wildfire Funding (open access)

Wildfire Funding

This report briefly describes the three categories of federal programs for wildfire protection. One is to protect the federal lands managed by the U.S. Department of Agriculture, Forest Service (FS), and by the U.S. Department of the Interior, whose wildfire programs are coordinated by the Bureau of Land Management (BLM). A second category assists state and local governments and communities in protecting nonfederal lands; these programs are used to reduce wildland fuels, to otherwise prepare for fire control, to contain and control wildfires, and to respond after severe wildfires have burned. A third category of federal programs supports fire research, fire facilities, and improvements in forest health. The last section of this report discusses the impact of high and rising wildfire costs.
Date: May 7, 2007
Creator: Gorte, Ross W.
Object Type: Report
System: The UNT Digital Library
Distributional Effects of Taxes on Corporate Profits, Investment Income, and Estates (open access)

Distributional Effects of Taxes on Corporate Profits, Investment Income, and Estates

Recent tax reductions reduce the effective tax rate on capital income in several different ways. Taxes on capital arise from individual taxes on dividends, interest, capital gains, and income from non-corporate businesses. This report contains data on the distribution of income by type and class, shifting the incidence of taxes, the effect of the savings response, and related information.
Date: May 7, 2007
Creator: Gravelle, Jane G.
Object Type: Report
System: The UNT Digital Library
Observation of Single Collisionally Cooled Trapped Ions in a Buffer Gas (open access)

Observation of Single Collisionally Cooled Trapped Ions in a Buffer Gas

None
Date: May 7, 2007
Creator: Green, M.; Wodin, J.; DeVoe, R.; Fierlinger, P.; Flatt, B.; Gratta, G. et al.
Object Type: Article
System: The UNT Digital Library
TreeQ-VISTA: An Interactive Tree Visualization Tool with Functional Annotation Query Capabilities (open access)

TreeQ-VISTA: An Interactive Tree Visualization Tool with Functional Annotation Query Capabilities

Summary: We describe a general multiplatform exploratorytool called TreeQ-Vista, designed for presenting functional annotationsin a phylogenetic context. Traits, such as phenotypic and genomicproperties, are interactively queried from a relational database with auser-friendly interface which provides a set of tools for users with orwithout SQL knowledge. The query results are projected onto aphylogenetic tree and can be displayed in multiple color groups. A richset of browsing, grouping and query tools are provided to facilitatetrait exploration, comparison and analysis.Availability: The program,detailed tutorial and examples are available online athttp://genome-test.lbl.gov/vista/TreeQVista.
Date: May 7, 2007
Creator: Gu, Shengyin; Anderson, Iain; Kunin, Victor; Cipriano, Michael; Minovitsky, Simon; Weber, Gunther et al.
Object Type: Article
System: The UNT Digital Library
VALIDATION OF COMPUTER MODELS FOR RADIOACTIVE MATERIAL SHIPPING PACKAGES (open access)

VALIDATION OF COMPUTER MODELS FOR RADIOACTIVE MATERIAL SHIPPING PACKAGES

Computer models are abstractions of physical reality and are routinely used for solving practical engineering problems. These models are prepared using large complex computer codes that are widely used in the industry. Patran/Thermal is such a finite element computer code that is used for solving complex heat transfer problems in the industry. Finite element models of complex problems involve making assumptions and simplifications that depend upon the complexity of the problem and upon the judgment of the analysts. The assumptions involve mesh size, solution methods, convergence criteria, material properties, boundary conditions, etc. that could vary from analyst to analyst. All of these assumptions are, in fact, candidates for a purposeful and intended effort to systematically vary each in connection with the others to determine there relative importance or expected overall effect on the modeled outcome. These kinds of models derive from the methods of statistical science and are based on the principles of experimental designs. These, as all computer models, must be validated to make sure that the output from such an abstraction represents reality [1,2]. A new nuclear material packaging design, called 9977, which is undergoing a certification design review, is used to assess the capability of the Patran/Thermal …
Date: May 7, 2007
Creator: Gupta, N; Gene Shine, G & Cary Tuckfield, C
Object Type: Article
System: The UNT Digital Library
Computation of Three Dimensional Tokamak and Spherical Torus Equilibria (open access)

Computation of Three Dimensional Tokamak and Spherical Torus Equilibria

A nominally axisymmetric plasma con�guration, such as a tokamak or a spherical torus, is highly sensitive to non-axisymmetric magnetic perturbations due to currents outside of the plasma. The high sensitivity means that the primary interest is in the response of the plasma to very small perturbations, | →(over) β/→(over)Β | ≈ 10–2 to 10–4, which can be calculated using the theory of perturbed equilibria. The Ideal Perturbed Equilibrium Code (IPEC) is described and applied to the study of the plasma response in a spherical torus to such external perturbations.
Date: May 7, 2007
Creator: Jong-kyu Park, Allen H. Boozer, and Alan H. Glasser
Object Type: Report
System: The UNT Digital Library
Molecular Line Emission from Massive Protostellar Disks: Predictions for ALMA and the EVLA (open access)

Molecular Line Emission from Massive Protostellar Disks: Predictions for ALMA and the EVLA

We compute the molecular line emission of massive protostellar disks by solving the equation of radiative transfer through the cores and disks produced by the recent radiation-hydrodynamic simulations of Krumholz, Klein, & McKee. We find that in several representative lines the disks show brightness temperatures of hundreds of Kelvin over velocity channels {approx} 10 km s{sup -1} wide, extending over regions hundreds of AU in size. We process the computed intensities to model the performance of next-generation radio and submillimeter telescopes. Our calculations show that observations using facilities such as the EVLA and ALMA should be able to detect massive protostellar disks and measure their rotation curves, at least in the nearest massive star-forming regions. They should also detect significant sub-structure and non-axisymmetry in the disks, and in some cases may be able to detect star-disk velocity offsets of a few km s{sup -1}, both of which are the result of strong gravitational instability in massive disks. We use our simulations to explore the strengths and weaknesses of different observational techniques, and we also discuss how observations of massive protostellar disks may be used to distinguish between alternative models of massive star formation.
Date: May 7, 2007
Creator: Krumholz, M R; Klein, R I & McKee, C F
Object Type: Article
System: The UNT Digital Library
Mixing and CP violation in the D0 and B0(s) systems (open access)

Mixing and CP violation in the D0 and B0(s) systems

Recent developments for mixing and CP violation in the D0 and Bs systems are reviewed, including (i) the recently emerging evidence for D0-D0bar mixing and the interpretations of the measurements; (ii) the theoretical status of the calculations of Delta(Gamma_D) and Delta(m_D); (iii) some implications of the measurement of Bs mixing for new physics.
Date: May 7, 2007
Creator: Ligeti, Zoltan & Ligeti, Zoltan
Object Type: Article
System: The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 92, No. 152, Ed. 1 Monday, May 7, 2007 (open access)

Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 92, No. 152, Ed. 1 Monday, May 7, 2007

Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date: May 7, 2007
Creator: Mattox, Jami
Object Type: Newspaper
System: The Gateway to Oklahoma History
NEW METHOD FOR DETERMINATION OF ACTINIDES AND STRONTIUM IN ANIMAL TISSUE (open access)

NEW METHOD FOR DETERMINATION OF ACTINIDES AND STRONTIUM IN ANIMAL TISSUE

The analysis of actinides in animal tissue samples is very important for environmental monitoring. There is a need to measure actinide isotopes with very low detection limits in animal tissue samples, including fish, deer, hogs, beef and shellfish. A new, rapid actinide separation method has been developed and implemented that allows the measurement of plutonium, neptunium, uranium, americium, curium and strontium isotopes in large animal tissue samples (100-200 g) with high chemical recoveries and effective removal of matrix interferences. This method uses stacked TEVA Resin{reg_sign}, TRU Resin{reg_sign} and DGA-Resin{reg_sign} cartridges from Eichrom Technologies (Darien, IL, USA) that allows the rapid separation of plutonium (Pu), neptunium (Np), uranium (U), americium (Am), and curium (Cm) using a single multi-stage column combined with alpha spectrometry. Sr-90 is collected on Sr Resin{reg_sign} from Eichrom Technologies (Darien, IL, USA). After acid digestion and furnace heating of the animal tissue samples, the actinides and Sr-89/90 are separated using column extraction chromatography. This method has been shown to be effective over a wide range of animal tissue matrices. By using vacuum box cartridge technology with rapid flow rates, sample preparation time is minimized.
Date: May 7, 2007
Creator: Maxwell, S; Jay Hutchison, J & Don Faison, D
Object Type: Article
System: The UNT Digital Library
Gauge mediation with D-term SUSY breaking (open access)

Gauge mediation with D-term SUSY breaking

We construct a gauge-mediation model with a D-term supersymmetry (SUSY) breaking. R-symmetry breaking necessary for generating the SUSY standard-model gaugino masses is given by gaugino condensation of a strongly coupled gauge theory in the hidden sector. The energy scale of the strong dynamics of the hidden sector gauge theory should be around the messenger mass scale M, or otherwise perturbative calculations would be reliable and would lead to negative soft mass squared for squarks and sleptons. Thus, all the mass scales are controlled by a virtually single parameter, \sqrt{D}/M. This model covers a very wide range of gravitino mass, m_{3/2} \simeq 1 eV--100 TeV. Possible embeddings of the model in string theory are also discussed.
Date: May 7, 2007
Creator: Nakayama, Y.; Taki, Masato; Watari, Taizan & Yanagida, T. T.
Object Type: Article
System: The UNT Digital Library
Lightest Isotope of Bh Produced Via the 209Bi(52Cr,n)260BhReaction (open access)

Lightest Isotope of Bh Produced Via the 209Bi(52Cr,n)260BhReaction

The lightest isotope of Bh known was produced in the new {sup 209}Bi({sup 52}Cr,n){sup 260}Bh reaction at the Lawrence Berkeley National Laboratory's 88-Inch Cyclotron. Positive identification was made by observation of eight correlated alpha particle decay chains in the focal plane detector of the Berkeley Gas-Filled Separator. {sup 260}Bh decays with a 35{sub -9}{sup +19} ms half-life by alpha particle emission mainly by a group at 10.16 MeV. The measured cross section of 59{sub -20}{sup +29} pb is approximately a factor of four larger than compared to recent model predictions. The influences of the N = 152 and Z = 108 shells on alpha decay properties are discussed.
Date: May 7, 2007
Creator: Nelson, Sarah L.; Gregorich, Kenneth E.; Dragojevic, Irena; Garcia, Mitch A.; Gates, Jacklyn M.; Sudowe, Ralf et al.
Object Type: Article
System: The UNT Digital Library
Verification of Gyrokinetic (delta)f Simulations of Electron Temperature Gradient Turbulence (open access)

Verification of Gyrokinetic (delta)f Simulations of Electron Temperature Gradient Turbulence

The GEM gyrokinetic {delta}f simulation code [Chen, 2003] [Chen, 2007] is shown to reproduce electron temperature gradient turbulence at the benchmark operating point established in previous work [Nevins, 2006]. The electron thermal transport is within 10% of the expected value, while the turbulent fluctuation spectrum is shown to have the expected intensity and two-point correlation function.
Date: May 7, 2007
Creator: Nevins, W. M.; Parker, S. E.; Chen, Y.; Candy, J.; Dimits, A.; Dorland, W. et al.
Object Type: Article
System: The UNT Digital Library
Regulatory Safety Issues in the Structural Design Criteria of ASME Section III Subsection NH and for Very High Temperatures for VHTR & GEN IV (open access)

Regulatory Safety Issues in the Structural Design Criteria of ASME Section III Subsection NH and for Very High Temperatures for VHTR & GEN IV

The objective of this task is to identify issues relevant to ASME Section III, Subsection NH [1], and related Code Cases that must be resolved for licensing purposes for VHTGRs (Very High Temperature Gas Reactor concepts such as those of PBMR, Areva, and GA); and to identify the material models, design criteria, and analysis methods that need to be added to the ASME Code to cover the unresolved safety issues. Subsection NH was originally developed to provide structural design criteria and limits for elevated-temperature design of Liquid Metal Fast Breeder Reactor (LMFBR) systems and some gas-cooled systems. The U.S. Nuclear Regulatory Commission (NRC) and its Advisory Committee for Reactor Safeguards (ACRS) reviewed the design limits and procedures in the process of reviewing the Clinch River Breeder Reactor (CRBR) for a construction permit in the late 1970s and early 1980s, and identified issues that needed resolution. In the years since then, the NRC and various contractors have evaluated the applicability of the ASME Code and Code Cases to high-temperature reactor designs such as the VHTGRs, and identified issues that need to be resolved to provide a regulatory basis for licensing. This Report describes: (1) NRC and ACRS safety concerns raised during …
Date: May 7, 2007
Creator: O’Donnell, William J. & Griffin, Donald S.
Object Type: Report
System: The UNT Digital Library
Currency Manipulation: The IMF and WTO (open access)

Currency Manipulation: The IMF and WTO

This report describes how the International Monetary Fund (IMF) and World Trade Organization (WTO) deal with the issue of currency manipulation.
Date: May 7, 2007
Creator: Sanford, Jonathan E.
Object Type: Report
System: The UNT Digital Library
The Oklahoma Daily (Norman, Okla.), Vol. 91, No. 151, Ed. 1 Monday, May 7, 2007 (open access)

The Oklahoma Daily (Norman, Okla.), Vol. 91, No. 151, Ed. 1 Monday, May 7, 2007

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date: May 7, 2007
Creator: Savage, William W., III
Object Type: Newspaper
System: The Gateway to Oklahoma History