Degree Department

Month

70 Matching Results

Results open in a new window/tab.

The United States and Europe: Current Issues (open access)

The United States and Europe: Current Issues

This report examines the current state of the transatlantic relationship and key issues that may have implications for U.S. interests during the 109th Congress.
Date: July 5, 2006
Creator: Archick, Kristin & Morelli, Vince L.
Object Type: Report
System: The UNT Digital Library
Measurement of the Spin of the Omega- Hyperon at Babar (open access)

Measurement of the Spin of the Omega- Hyperon at Babar

A measurement of the spin of the {Omega}{sup -} hyperon produced through the exclusive process {Xi}{sub c}{sup 0} {yields} {Omega}{sup -}K{sup +} is presented using a total integrated luminosity of 116 fb{sup -1} recorded with the BABAR detector at the e{sup +}e{sup -} asymmetric-energy B-Factory at SLAC. Under the assumption that the {Xi}{sub c}{sup 0} has spin 1/2, the angular distribution of the {Lambda} from {Omega}{sup -} {yields} {Lambda}K{sup -} decay is inconsistent with all half-integer {Omega}{sup -} spin values other than 3/2. Lower statistics data for the process {Omega}{sub c}{sup 0} {yields} {Omega}{sup -}{pi}{sup +} from a 230 fb{sup -1} sample are also found to be consistent with {Omega}{sup -} spin 3/2. If the {Xi}{sub c}{sup 0} spin were 3/2, an {Omega}{sup -} spin of 5/2 cannot be excluded.
Date: July 5, 2006
Creator: Aubert, B.
Object Type: Article
System: The UNT Digital Library
All One-loop Maximally Helicity Violating Gluonic Amplitudes in QCD (open access)

All One-loop Maximally Helicity Violating Gluonic Amplitudes in QCD

We use on-shell recursion relations to compute analytically the one-loop corrections to maximally-helicity-violating n-gluon amplitudes in QCD. The cut-containing parts have been computed previously; our work supplies the remaining rational parts for these amplitudes, which contain two gluons of negative helicity and the rest positive, in an arbitrary color ordering. We also present formulae specific to the six-gluon cases, with helicities (-+-+++) and (-++-++), as well as numerical results for six, seven, and eight gluons. Our construction of the n-gluon amplitudes illustrates the relatively modest growth in complexity of the on-shell-recursive calculation as the number of external legs increases. These amplitudes add to the growing body of one-loop amplitudes known for all n, which are useful for studies of general properties of amplitudes, including their twistor-space structure.
Date: July 5, 2006
Creator: Berger, Carola F.; Bern, Zvi; Dixon, Lance J.; Forde, Darren & Kosower, David A.
Object Type: Report
System: The UNT Digital Library
Final Technical Report - In-line Uranium Immunosensor (open access)

Final Technical Report - In-line Uranium Immunosensor

In this project, personnel at Tulane University and Sapidyne Instruments Inc. developed an in-line uranium immunosensor that could be used to determine the efficacy of specific in situ biostimulation approaches. This sensor was designed to operate autonomously over relatively long periods of time (2-10 days) and was able to provide near real-time data about uranium immobilization in the absence of personnel at the site of the biostimulation experiments. An alpha prototype of the in-line immmunosensor was delivered from Sapidyne Instruments to Tulane University in December of 2002 and a beta prototype was delivered in November of 2003. The beta prototype of this instrument (now available commercially from Sapidyne Instruments) was programmed to autonomously dilute standard uranium to final concentrations of 2.5 to 100 nM (0.6 to 24 ppb) in buffer containing a fluorescently labeled anti-uranium antibody and the uranium chelator, 2,9-dicarboxyl-1,10-phenanthroline. The assay limit of detection for hexavalent uranium was 5.8 nM or 1.38 ppb. This limit of detection is well below the drinking water standard of 30 ppb recently promulgated by the EPA. The assay showed excellent precision; the coefficients of variation (CV’s) in the linear range of the assay were less than 5% and CV’s never rose above …
Date: July 5, 2006
Creator: Blake, Diane A.
Object Type: Report
System: The UNT Digital Library
The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 112, No. 1, Ed. 1 Wednesday, July 5, 2006 (open access)

The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 112, No. 1, Ed. 1 Wednesday, July 5, 2006

Weekly newspaper from Goldthwaite, Texas that includes local, state, and national news along with extensive advertising.
Date: July 5, 2006
Creator: Bridges, Steven W.
Object Type: Newspaper
System: The Portal to Texas History
Perry Daily Journal (Perry, Okla.), Vol. 114, No. 130, Ed. 1 Wednesday, July 5, 2006 (open access)

Perry Daily Journal (Perry, Okla.), Vol. 114, No. 130, Ed. 1 Wednesday, July 5, 2006

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: July 5, 2006
Creator: Brown, Gloria
Object Type: Newspaper
System: The Gateway to Oklahoma History
United Nations Peacekeeping: Issues for Congress (open access)

United Nations Peacekeeping: Issues for Congress

None
Date: July 5, 2006
Creator: Browne, Marjorie Ann
Object Type: Report
System: The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Wednesday, July 5, 2006 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Wednesday, July 5, 2006

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: July 5, 2006
Creator: Bush, Kent
Object Type: Newspaper
System: The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 108, No. 82, Ed. 1 Wednesday, July 5, 2006 (open access)

Altus Times (Altus, Okla.), Vol. 108, No. 82, Ed. 1 Wednesday, July 5, 2006

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: July 5, 2006
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Tiger (San Antonio, Tex.), Vol. 60, No. 4B, Ed. 1 Wednesday, July 5, 2006 (open access)

The Tiger (San Antonio, Tex.), Vol. 60, No. 4B, Ed. 1 Wednesday, July 5, 2006

Monthly student newspaper from St. Philip's College in San Antonio, Texas that includes campus news along with advertising.
Date: July 5, 2006
Creator: Christine, Glynis & Agold, Cynthia
Object Type: Newspaper
System: The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 85, No. 236, Ed. 1 Wednesday, July 5, 2006 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 85, No. 236, Ed. 1 Wednesday, July 5, 2006

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: July 5, 2006
Creator: Clements, Clifford E.
Object Type: Newspaper
System: The Portal to Texas History
Charm Mixing at BaBar (open access)

Charm Mixing at BaBar

We report on searches for D{sup 0}-{bar D}{sup 0} mixing using decay-time distributions of D{sup 0} {yields} K{pi} and D{sup 0} {yields} K{sup (*)}e{nu} decays and a lifetime ratio analysis of D{sup 0} {yields} K{sup +}K{sup -}, {pi}{sup +}{pi}{sup -} decays using 91 fb{sup -1} of e{sup +}e{sup -} data taken at the PEP-II asymmetric-energy storage ring at energies near 10.6 GeV. Searches for CP-violation in D{sup 0} mixing and decay are also reported, as well as a measurement of R{sub D}, the ratio of the doubly Cabibbo-suppressed decay rate to the Cabibbo-allowed decay rate.
Date: July 5, 2006
Creator: Cowan, Ray F.
Object Type: Article
System: The UNT Digital Library
The Colony Courier-Leader (The Colony, Tex.), Vol. 25, No. 22, Ed. 1 Wednesday, July 5, 2006 (open access)

The Colony Courier-Leader (The Colony, Tex.), Vol. 25, No. 22, Ed. 1 Wednesday, July 5, 2006

Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date: July 5, 2006
Creator: Crimmins, Blaine
Object Type: Newspaper
System: The Portal to Texas History
Oral History Interview with Albert Dimminger, July 5, 2006 transcript

Oral History Interview with Albert Dimminger, July 5, 2006

The National Museum of the Pacific War presents an interview with Albert Dimminger. Dimminger worked for Hammond Aircraft and Consolidated in 1939, building aircraft. He joined the Navy in March of 1942. Beginning in mid-June Dimminger served as Aviation Metalsmith Third Class aboard the USS Hornet (CV-8). From August through October they operated around the Solomon Islands. On 26 October, during the Battle of the Santa Cruz Islands, the ship was struck and sank by a dive bomber and torpedo plane attack. He was transferred to the USS Bougainville (CVE-100), and they transported aircraft to the Marshall, Admiralty and Mariana islands. In February of 1944 he was stationed in Honolulu for shore duty and worked as First Class Petty Officer in charge of the supply depot for plane parts. He was discharged in 1945.
Date: July 5, 2006
Creator: Dimminger, Albert
Object Type: Sound
System: The Portal to Texas History
Oral History Interview with Albert Dimminger, July 5, 2006 (open access)

Oral History Interview with Albert Dimminger, July 5, 2006

The National Museum of the Pacific War presents an interview with Albert Dimminger. Dimminger worked for Hammond Aircraft and Consolidated in 1939, building aircraft. He joined the Navy in March of 1942. Beginning in mid-June Dimminger served as Aviation Metalsmith Third Class aboard the USS Hornet (CV-8). From August through October they operated around the Solomon Islands. On 26 October, during the Battle of the Santa Cruz Islands, the ship was struck and sank by a dive bomber and torpedo plane attack. He was transferred to the USS Bougainville (CVE-100), and they transported aircraft to the Marshall, Admiralty and Mariana islands. In February of 1944 he was stationed in Honolulu for shore duty and worked as First Class Petty Officer in charge of the supply depot for plane parts. He was discharged in 1945.
Date: July 5, 2006
Creator: Dimminger, Albert
Object Type: Text
System: The Portal to Texas History
Gas Centrifuge Enrichment Plant Safeguards System Modeling (open access)

Gas Centrifuge Enrichment Plant Safeguards System Modeling

None
Date: July 5, 2006
Creator: Elayat, H A; O'Connell, W J & Boyer, B D
Object Type: Article
System: The UNT Digital Library
Mannford Eagle (Mannford, Okla.), Vol. 25, No. 11, Ed. 1 Wednesday, July 5, 2006 (open access)

Mannford Eagle (Mannford, Okla.), Vol. 25, No. 11, Ed. 1 Wednesday, July 5, 2006

Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.
Date: July 5, 2006
Creator: Farley, Tim
Object Type: Newspaper
System: The Gateway to Oklahoma History
Large-eddy simulation of very large kinetic and magnetic Reynolds number isotropic magnetohydrodynamic turbulence using a spectral subgrid model (open access)

Large-eddy simulation of very large kinetic and magnetic Reynolds number isotropic magnetohydrodynamic turbulence using a spectral subgrid model

A spectral subggrid-scale eddy viscosity and magnetic resisitivity model based on the eddy-damped quasi-normal Markovian (EDQNM) spectral kinetic and magnetic energy transfer presented in [12] is used in large-eddy simulation (LES) of large kinetic and magnetic Reynold number magneto-hydrodynamic (MHD) turbulence. The proposed model is assessed via a posteri tests on three-dimensional, incompressible, isotropic, non-helical, freely-decaying MHD turbulence at asymptotically large Reynolds numbers. Using LES with an initial condition characterized by an Alfv{acute e}n ratio of kinetic to magnetic energy {tau}{sub A} equal to unity, it is shown that at the kinetic energy spectrum E{sub K}(k) and magnetic energy spectrum E{sub M}(k) exhibit Kolmogorov -5/3 inertial subrange scalings in the LES, consistent with the EDQNM model.
Date: July 5, 2006
Creator: Gomez, T; Sagaut, P; Schilling, O & Zhou, Y
Object Type: Article
System: The UNT Digital Library
The Oklahoma Daily (Norman, Okla.), Vol. 90, No. 161, Ed. 1 Wednesday, July 5, 2006 (open access)

The Oklahoma Daily (Norman, Okla.), Vol. 90, No. 161, Ed. 1 Wednesday, July 5, 2006

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date: July 5, 2006
Creator: Heister, Andrea
Object Type: Newspaper
System: The Gateway to Oklahoma History
Army Officer Shortages: Background and Issues for Congress (open access)

Army Officer Shortages: Background and Issues for Congress

This report assesses the extent of the Army officer shortfall, examines perceived causes, reviews recent retention initiatives, identifies other possible retention incentives, and concludes with a review of possible options for Congress. This report is focused on the Army’s “line” or basic branch officers.
Date: July 5, 2006
Creator: Henning, Charles A.
Object Type: Report
System: The UNT Digital Library
User-Friendly End Station at the ALS for Nanostructure Characterization (open access)

User-Friendly End Station at the ALS for Nanostructure Characterization

This is a construction project for an end station at the ALS, which is optimized for measuring NEXAFS of nanostructures with fluorescence detection. Compared to the usual electron yield detection, fluorescence is able to probe buried structures and is sensitive to dilute species, such as nanostructures supported on a substrate. Since the quantum yield for fluorescence is 10{sup -4}-10{sup -5} times smaller than for electrons in the soft x-ray regime, such an end station requires bright undulator beamlines at the ALS. In order to optimize the setup for a wide range of applications, two end stations were built: (1) A simple, mobile chamber with efficient photon detection (>10{sup 4} times the solid angle collection of fluorescence spectrographs) and a built-in magnet for MCD measurements at EPU beamlines (Fig. 1 left). It allows rapid mapping the electronic states of nanostructures (nanocrystals, nanowires, tailored magnetic materials, buried interfaces, biologically-functionalized surfaces). It was used with BL 8.0 (linear polarized undulator) and BL 4.0 (variable polarization). (2) A sophisticated, stationary end station operating at Beamline 8.0 (Fig. 1 right). It contains an array of surface characterization instruments and a micro-focus capability for scanning across graded samples (wedges for thickness variation, stoichiometry gradients, and general …
Date: July 5, 2006
Creator: Himpsel, F. J.; Alivisatos, P.; Callcott, T.; Carlisle, J.; Denlinger, J. D.; Eastman, D. E. et al.
Object Type: Report
System: The UNT Digital Library
The Effect of Temperature on the Breakdown and Repassivation Potentials of Welded Alloy 22 In 5 M CACI2 (open access)

The Effect of Temperature on the Breakdown and Repassivation Potentials of Welded Alloy 22 In 5 M CACI2

The study of the electrochemical behavior of wrought and welded Alloy 22 was carried out in 5 M CaCl{sub 2} as a function of temperatures between 45 and 120 C with Multiple Crevice Assembly (MCA) specimens. The susceptibility to corrosion was found to increase with increase in electrolyte temperature in both the wrought (in the mill annealed condition) and the welded forms of the alloy. The weld metal was found to be less susceptible to localized corrosion under the conditions tested.
Date: July 5, 2006
Creator: IIevbare, G.O.
Object Type: Report
System: The UNT Digital Library
Kuwait: Security, Reform, and U.S. Policy (open access)

Kuwait: Security, Reform, and U.S. Policy

Kuwaiti leaders peacefully resolved a succession crisis that erupted following the January 15, 2006 death of its long-ruling Amir. However, a new crisis erupted in May 2006 over the structure of the next parliamentary elections, prompting a dissolution of the existing parliament and new elections on June 29, 2006. Women votes and ran for the first time, but none won.
Date: July 5, 2006
Creator: Katzman, Kenneth
Object Type: Report
System: The UNT Digital Library
Kuwait: Security, Reform, and U.S. Policy (open access)

Kuwait: Security, Reform, and U.S. Policy

None
Date: July 5, 2006
Creator: Katzman, Kenneth
Object Type: Report
System: The UNT Digital Library