21 Matching Results

Search Results

Results: 1 - 21
open access

Tax Compliance: Qualified Intermediary Program Provides Some Assurance That Taxes on Foreign Investors Are Withheld and Reported, but Can Be Improved

Description: A letter report issued by the Government Accountability Office with an abstract that begins "U.S. source income flows to recipients offshore through foreign financial institutions and U.S. withholding agents. The Internal Revenue Service (IRS) established the Qualified Intermediary (QI) program to improve tax withholding and reporting on such income. QIs are foreign financial institutions that contract with IRS to withhold and report U.S. tax. GAO was asked to (1) describe program features, (2)… more
Date: December 19, 2007
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Electron Beam Lifetime in SPEAR3: Measurement and Simulation

Description: In this paper we report on electron beam lifetime measurements as a function of scraper position, RF voltage and bunch fill pattern in SPEAR3. We then outline development of an empirical, macroscopic model using the beam-loss rate equation. By identifying the dependence of loss coefficients on accelerator and beam parameters, a numerically-integrating simulator can be constructed to compute beam decay with time. In a companion paper, the simulator is used to train a parametric, non-linear dynam… more
Date: December 19, 2007
Creator: Corbett, J.; Huang, X.; Lee, M. & Lui, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Sum Frequency Generation Vibrational Spectroscopy Studies on ModelPeptide Adsorption at the Hydrophobic Solid-Water and HydrophilicSolid-Water Interfaces

Description: Sum frequency generation (SFG) vibrational spectroscopy has been used to study the interfacial structure of several polypeptides and amino acids adsorbed to hydrophobic and hydrophilic surfaces under a variety of experimental conditions. Peptide sequence, peptide chain length, peptide hydrophobicity, peptide side-chain type, surface hydrophobicity, and solution ionic strength all affect an adsorbed peptide's interfacial structure. Herein, it is demonstrated that with the choice of simple, model… more
Date: December 19, 2007
Creator: York, Roger L.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

Search for Decays of B0 Mesons into e+e-, \mu+\mu-, and e+-\mu+- Final States

Description: The authors present a search for the decays B{sup 0} {yields} e{sup +}e{sup -}, B{sup 0} {yields} {mu}{sup +}{mu}{sup -} and B{sup 0} {yields} e{sup {+-}}{mu}{sup {-+}} using data collected with the BABAR detector at the PEP-II e{sup +}e{sup -} collider at SLAC. Using a dataset corresponding to 384 x 10{sup 6} B{bar B} pairs, they do not find evidence of any of the three decay modes. They obtain upper limit on the branching fractions, at 90% confidence level, of {Beta}(B{sup 0} {yields} e{sup +… more
Date: December 19, 2007
Creator: Aubert, B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

High-Pressure Catalytic Reactions of C6 Hydrocarbons on PlatinumSingle-Crystals and nanoparticles: A Sum Frequency Generation VibrationalSpectroscopic and Kinetic Study

Description: Catalytic reactions of cyclohexene, benzene, n-hexane, 2-methylpentane, 3-methylpentane, and 1-hexene on platinum catalysts were monitored in situ via sum frequency generation (SFG) vibrational spectroscopy and gas chromatography (GC). SFG is a surface specific vibrational spectroscopic tool capable of monitoring submonolayer coverages under reaction conditions without gas-phase interference. SFG was used to identify the surface intermediates present during catalytic processes on Pt(111) and Pt… more
Date: December 19, 2007
Creator: Bratlie, Kaitlin
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

Status of DAFNE

Description: DA{Phi}NE is a double ring electron-positron collider, designed to provide very high luminosity at the energy of the {Phi} resonance (1.02 GeV c.m.). After storing the first beam in fall 1997, the collider was commissioned without solenoidal detectors until the end of 1998, reaching a single bunch luminosity of 1.6 x 10{sup 30} cm{sup -2}s{sup -1} with 20 mA in each beam, corresponding to a beam-beam tune shift of {approx} 0.03. A longitudinal bunch-to-bunch feedback has been implemented, allow… more
Date: December 19, 2007
Creator: Preger, M.; /Frascati; Alesini, D.; Benedetti, G.; Bertolucci, S.; Biscari, C. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

On-chip single-copy real-time reverse-transcription PCR in isolated picoliter droplets

Description: The first lab-on-chip system for picoliter droplet generation and RNA isolation, followed by reverse transcription, and PCR amplification with real-time fluorescence detection in the trapped droplets has been developed. The system utilized a shearing T-junction in a fused silica device to generate a stream of monodisperse picoliter-scale droplets that were isolated from the microfluidic channel walls and each other by the oil phase carrier. An off-chip valving system stopped the droplets on-chi… more
Date: December 19, 2007
Creator: Beer, N. R.; Wheeler, E.; Lee-Houghton, L.; Watkins, N.; Nasarabadi, S.; Hebert, N. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

DIRECT MEASUREMENT OF HEAT FLUX FROM COOLING LAKE THERMAL IMAGERY

Description: Laboratory experiments show a linear relationship between the total heat flux from a water surface to air and the standard deviation of the surface temperature field, {sigma}, derived from thermal images of the water surface over a range of heat fluxes from 400 to 1800 Wm{sup -2}. Thermal imagery and surface data were collected at two power plant cooling lakes to determine if the laboratory relationship between heat flux and {sigma} exists in large heated bodies of water. The heat fluxes comput… more
Date: December 19, 2007
Creator: Garrett, A; Eliel Villa-Aleman, E; Robert Kurzeja, R; Malcolm Pendergast, M; Timothy Brown, T & Saleem Salaymeh, S
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

General Features of Supersymmetric Signals at the ILC: Solving the LHC Inverse Problem

Description: We examine whether the {radical}s = 500 GeV International Linear Collider with 80% electron beam polarization can be used to solve the LHC Inverse Problem within the framework of the MSSM. We investigate 242 points in the MSSM parameter space, which we term models, that correspond to the 162 pairs of models found by Arkani-Hamed et al. to give indistinguishable signatures at the LHC. We first determine whether the production of the various SUSY particles is visible above the Standard Model back… more
Date: December 19, 2007
Creator: Berger, Carola F.; Gainer, James S.; Hewett, JoAnne L.; Lillie, Ben & Rizzo, Thomas G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Physics of Extra Dimensions Final Report

Description: We provide the final report for Csaba Csaki's OJI project on "Physics of extra dimensions". It includes the summary of results of higgsless electroweak symmetry breaking, gauge-higgs unification, AdS/QCD and holographic technicolor, and chiral lattice theories from warped extra dimensions.
Date: December 19, 2007
Creator: Csaki, Csaba
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

[Newspaper Interns Honored by Texas Daily Newspaper Association]

Description: Texas Daily Newspaper Association's honored newspaper editorial interns who worked at The Dallas Morning News and the Houston Chronicle the summer of 2007 have been awarded the H.M Fentress Award, sponsored by Cox Enterprises and the Texas Daily Newspaper Association. Winner Matthew Haag, who interned at The Dallas Morning News, received $250 and a plaque. The runner-up Ashley Harris, who interned at the Houston Chronicle, received $100 and a plaque. The document details the work that Haag and … more
Date: December 19, 2007
Creator: Texas Daily Newspaper Association
Item Type: Refine your search to only Text
Partner: UNT Libraries Special Collections
open access

Effects of Elevated CO2 on Root Function and Soil Respiration in a Mojave Desert Ecosystem

Description: Increases in atmospheric CO{sub 2} concentration during the last 250 years are unequivocal, and CO{sub 2} will continue to increase at least for the next several decades (Houghton et al. 2001, Keeling & Whorf 2002). Arid ecosystems are some of the most important biomes globally on a land surface area basis, are increasing in area at an alarming pace (Dregne 1991), and have a strong coupling with regional climate (Asner & Heidebrecht 2005). These water-limited ecosystems also are predicted to be… more
Date: December 19, 2007
Creator: Nowak, Robert S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

India-U.S. Relations

Description: This report briefs the context of India - U.S relations and also discusses its bilateral issues
Date: December 19, 2007
Creator: Kronstadt, K. Alan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Aerial Measurements of Convection Cell Elements in Heated Lakes

Description: Power plant-heated lakes are characterized by a temperature gradient in the thermal plume originating at the discharge of the power plant and terminating at the water intake. The maximum water temperature discharged by the power plant into the lake depends on the power generated at the facility and environmental regulations on the temperature of the lake. Besides the observed thermal plume, cloud-like thermal cells (convection cell elements) are also observed on the water surface. The size, sha… more
Date: December 19, 2007
Creator: Villa-Aleman, E.; Saleem Salaymeh, S.; Timothy Brown, T.; Alfred Garrett, A.; Malcolm Pendergast, M. & Linda Nichols, L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
Back to Top of Screen