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[29th annual "Black Music and the Civil Rights Movement Concert" televised broadcast]
Video recording from The Black Academy of Arts and Letters of the CBS 11 televised broadcast for the 29th annual "Black Music and the Civil Rights Movement Concert" held on January 15th. The footage shows the audience entering the Myerson and the performance edited into seamless clips from various moving camera angles showing featured performers such as Cece Winans.
Date:
January 15, 2012
Creator:
CBS 11/ TXA 21
Object Type:
Video
System:
The UNT Digital Library
The Altus Times (Altus, Okla.), Vol. 112, No. 200, Ed. 1 Sunday, January 15, 2012
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 15, 2012
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Baytown Sun (Baytown, Tex.), Vol. 92, No. 11, Ed. 1 Sunday, January 15, 2012
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
January 15, 2012
Creator:
Yanelli, Adam
Object Type:
Newspaper
System:
The Portal to Texas History
Large-scale Nanostructure Simulations from X-ray Scattering Data On Graphics Processor Clusters
X-ray scattering is a valuable tool for measuring the structural properties of materialsused in the design and fabrication of energy-relevant nanodevices (e.g., photovoltaic, energy storage, battery, fuel, and carbon capture andsequestration devices) that are key to the reduction of carbon emissions. Although today's ultra-fast X-ray scattering detectors can provide tremendousinformation on the structural properties of materials, a primary challenge remains in the analyses of the resulting data. We are developing novelhigh-performance computing algorithms, codes, and software tools for the analyses of X-ray scattering data. In this paper we describe two such HPCalgorithm advances. Firstly, we have implemented a flexible and highly efficient Grazing Incidence Small Angle Scattering (GISAXS) simulation code based on theDistorted Wave Born Approximation (DWBA) theory with C++/CUDA/MPI on a cluster of GPUs. Our code can compute the scattered light intensity from any givensample in all directions of space; thus allowing full construction of the GISAXS pattern. Preliminary tests on a single GPU show speedups over 125x compared tothe sequential code, and almost linear speedup when executing across a GPU cluster with 42 nodes, resulting in an additional 40x speedup compared to usingone GPU node. Secondly, for the structural fitting problems in inverse modeling, we have implemented a …
Date:
January 15, 2012
Creator:
Sarje, Abhinav; Pien, Jack; Li, Xiaoye; Chan, Elaine; Chourou, Slim; Hexemer, Alexander et al.
Object Type:
Report
System:
The UNT Digital Library
The Panola Watchman (Carthage, Tex.), Vol. 140, No. 5, Ed. 1 Sunday, January 15, 2012
Semiweekly newspaper from Carthage, Texas that includes local, state, and national news along with advertising.
Date:
January 15, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Plasmonics Based Harsh Environment Compatible Chemical Sensors
Au-YSZ, Au-TiO{sub 2} and Au-CeO{sub 2} nanocomposite films have been investigated as a potential sensing element for high-temperature plasmonic sensing of H{sub 2}, CO, and NO{sub 2} in an oxygen containing environment. The Au-YSZ and Au-TiO{sub 2} films were deposited using PVD methods, while the CeO{sub 2} thin film was deposited by molecular beam epitaxy (MBE) and Au was implanted into the as-grown film at an elevated temperature followed by high temperature annealing to form well-defined Au nanoclusters. Each of the films were characterized by x-ray diffraction (XRD) and Rutherford backscattering spectrometry (RBS). For the gas sensing experiments, separate exposures to varying concentrations of H{sub 2}, CO, and NO{sub 2} were performed at a temperature of 500°C in oxygen backgrounds of 5.0, 10, and ~21% O{sub 2}. Changes in the localized surface plasmon resonance (LSPR) absorption peak were monitored during gas exposures and are believed to be the result of oxidation-reduction processes that fill or create oxygen vacancies in the respective metal oxides. This process affects the LSPR peak position either by charge exchange with the Au nanoparticles or by changes in the dielectric constant surrounding the particles. Hyperspectral multivariate analysis was used to gauge the inherent selectivity of the …
Date:
January 15, 2012
Creator:
Carpenter, Michael
Object Type:
Report
System:
The UNT Digital Library
Polk County Enterprise (Livingston, Tex.), Vol. 130, No. 5, Ed. 1 Sunday, January 15, 2012
Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date:
January 15, 2012
Creator:
Reddell, Valerie
Object Type:
Newspaper
System:
The Portal to Texas History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 97, No. 87, Ed. 1 Sunday, January 15, 2012
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 15, 2012
Creator:
Gibbs, Angenene
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Sweetwater Reporter (Sweetwater, Tex.), Vol. 113, No. 359, Ed. 1 Sunday, January 15, 2012
Daily newspaper from Sweetwater, Texas that includes local, state, and national news along with advertising.
Date:
January 15, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
[Video: 29th Annual Black Music & the Civil Rights Movement Concert]
Video recording of the 29th Annual Black Music and the Civil Rights Movement Concert, a tribute to MLK Jr., produced by The Black Academy of Arts and Letters in conjunction with CBS 11 News.
Date:
January 15, 2012
Creator:
Latte Media Group
Object Type:
Video
System:
The UNT Digital Library
N >= 4 Supergravity Amplitudes from Gauge Theory at Two Loops
We present the full two-loop four-graviton amplitudes in N = 4, 5, 6 supergravity. These results were obtained using the double-copy structure of gravity, which follows from the recently conjectured color-kinematics duality in gauge theory. The two-loop four-gluon scattering amplitudes in N = 0, 1, 2 supersymmetric gauge theory are a second essential ingredient. The gravity amplitudes have the expected infrared behavior: the two-loop divergences are given in terms of the squares of the corresponding one-loop amplitudes. The finite remainders are presented in a compact form. The finite remainder for N = 8 supergravity is also presented, in a form that utilizes a pure function with a very simple symbol.
Date:
February 15, 2012
Creator:
Boucher-Veronneau, C. & Dixon, L. J.
Object Type:
Article
System:
The UNT Digital Library
20% Wind by 2030: Overcoming the Challenges in West Virginia
Final Report for '20% Wind by 2030: Overcoming the Challenges in West Virginia'. The objective of this project was to examine the obstacles and constraints to the development of wind energy in West Virginia as well as the obstacles and constraints to the achievement of the national goal of 20% wind by 2030. For the portion contracted with WVU, there were four tasks in this examination of obstacles and constraints. Task 1 involved the establishment of a Wind Resource Council. Task 2 involved conducting limited research activities. These activities involved an ongoing review of wind energy documents including documents regarding the potential for wind farms being located on reclaimed surface mining sites as well as other brownfield sites. The Principal Investigator also examined the results of the Marshall University SODAR assessment of the potential for placing wind farms on reclaimed surface mining sites. Task 3 involved the conducting of outreach activities. These activities involved working with the members of the Wind Resource Council, the staff of the Regional Wind Energy Institute, and the staff of Penn Future. This task also involved the examination of the importance of transmission for wind energy development. The Principal Investigator kept informed as to transmission …
Date:
February 15, 2012
Creator:
Mann, Patrick & Risch, Christine
Object Type:
Report
System:
The UNT Digital Library
Addressing Control of Hazardous Energy (COHE) Requirements in a Laser Safety Program
OSHA regulation 29CFR1910.147 specifies control of hazardous energy requirements for 'the servicing and maintenance of machines and equipment in which the unexpected energization or start up of the machines or equipment, or release of stored energy could cause injury to employees.' Class 3B and Class 4 laser beams must be considered hazardous energy sources because of the potential for serious eye injury; careful consideration is therefore needed to safely de-energize these lasers. This paper discusses and evaluates control of hazardous energy principles in this OSHA regulation, in ANSI Z136.1 ''Safe Use of Lasers,'' and in ANSI Z244.1 ''Control of Hazardous Energy, Lockout/Tagout and Alternative Methods.'' Recommendations are made for updating and improving CoHE (control of hazardous energy) requirements in these standards for their applicability to safe laser operations.
Date:
February 15, 2012
Creator:
Woods, Michael
Object Type:
Article
System:
The UNT Digital Library
Air Conditioning with Magnetic Refrigeration
Advanced Research Projects Agency-Energy project sheet summarizing general information about the Building Energy Efficiency Through Innovative Thermodevices (BEETIT) program including critical needs, innovation and advantages, impacts, and contact information. This sheet discusses air conditioning with magnetic refrigeration as part of "An Efficient, Green Compact Cooling System Using Magnetic Refrigeration" project.
Date:
February 15, 2012
Creator:
Astronautics Corporation of America
Object Type:
Text
System:
The UNT Digital Library
All-Optical Time-Resolved Measurement of Laser Energy Modulation in a Relativistic Electron Beam
Hamiltonian light-front theory has been proposed as a promising method for solving bound states problems in quantum field theory a long time ago, see, e.g., the review article[1] for its various advantages compared to the traditional instant-form theories. Recently the Basis Light-Front Quantization (BLFQ) approach [2, 3] has been developed as a nonperturbative approach to solve Hamiltonian light-front quantum field theory. Numerical efficiency is a key advantage of this approach. The basic idea of BLFQ is to represent the theory in an optimal basis which respects many symmetries of the theory and thus minimizes the dimensionality of the Hamiltonian for a fixed precision. Specifically, the BLFQ approach employs a plane wave basis in the light-front longitudinal direction and a 2D harmonic oscillator basis in the transverse directions. In previous work [3] this approach has been applied to evaluate the anomalous magnetic moment of electrons which are confined in an external trap with an extrapolation to the zero trap limit. In this work we extend and improve this approach in several aspects including the direct evaluation of a free electron system. This article is organized as follows: In Sec. 2 we discuss the key extensions and improvements made in this work …
Date:
February 15, 2012
Creator:
Xiang, D.; Colby, E.; Dunning, M.; Gilevich, S.; Hast, C.; Jobe, K. et al.
Object Type:
Article
System:
The UNT Digital Library
The Altus Times (Altus, Okla.), Vol. 112, No. 221, Ed. 1 Wednesday, February 15, 2012
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 15, 2012
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Analytic Result for the Two-loop Six-point NMHV Amplitude in N = 4 Super Yang-Mills Theory
We provide a simple analytic formula for the two-loop six-point ratio function of planar N = 4 super Yang-Mills theory. This result extends the analytic knowledge of multi-loop six-point amplitudes beyond those with maximal helicity violation. We make a natural ansatz for the symbols of the relevant functions appearing in the two-loop amplitude, and impose various consistency conditions, including symmetry, the absence of spurious poles, the correct collinear behavior, and agreement with the operator product expansion for light-like (super) Wilson loops. This information reduces the ansatz to a small number of relatively simple functions. In order to fix these parameters uniquely, we utilize an explicit representation of the amplitude in terms of loop integrals that can be evaluated analytically in various kinematic limits. The final compact analytic result is expressed in terms of classical polylogarithms, whose arguments are rational functions of the dual conformal cross-ratios, plus precisely two functions that are not of this type. One of the functions, the loop integral {Omega}{sup (2)}, also plays a key role in a new representation of the remainder function R{sub 6}{sup (2)} in the maximally helicity violating sector. Another interesting feature at two loops is the appearance of a new (parity odd) …
Date:
February 15, 2012
Creator:
Dixon, Lance J.; Drummond, James M. & Henn, Johannes M.
Object Type:
Article
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 92, No. 33, Ed. 1 Wednesday, February 15, 2012
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 15, 2012
Creator:
Yanelli, Adam
Object Type:
Newspaper
System:
The Portal to Texas History
Bounds and self-consistent estimates for elastic constants of polycrystals of hcp solid He{sup 4}
Recent advances in methods for computing both Hashin-Shtrikman bounds and related selfconsistent (or CPA) estimates of elastic constants for polycrystals composed of randomly oriented crystals can be applied successfully to hexagonal close packed solid He{sup 4}. In particular, since the shear modulus C{sub 44} of hexagonal close-packed solid He is known to undergo large temperature variations when 20 mK {<=}#20; T {<=}#20; 200 mK, bounds and estimates computed with this class of effective medium methods, while using C{sub 44} {r_arrow} 0 as a proxy for melting, are found to be both qualitatively and quantitatively very similar to prior results obtained using Monte Carlo methods. Hashin- Shtrikman bounds provide significantly tighter constraints on the polycrystal behavior than do the traditional Voigt and Reuss bounds.
Date:
February 15, 2012
Creator:
Berryman, J. G.
Object Type:
Article
System:
The UNT Digital Library
Carbon Dioxide and Ionic Liquid Refrigerants
Advanced Research Projects Agency-Energy project sheet summarizing general information about the Building Energy Efficiency Through Innovative Thermodevices (BEETIT) program including critical needs, innovation and advantages, impacts, and contact information. This sheet discusses air conditioning that uses new refrigerants as part of the "Compact, Efficient Air Conditioning with Ionic Liquid-Based Refrigerants" project.
Date:
February 15, 2012
Creator:
University of Notre Dame
Object Type:
Text
System:
The UNT Digital Library
Cherokeean Herald (Rusk, Tex.), Vol. 162, No. 51, Ed. 1 Wednesday, February 15, 2012
Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date:
February 15, 2012
Creator:
Gonzalez, Terrie
Object Type:
Newspaper
System:
The Portal to Texas History
Civilian Extraterritorial Jurisdiction Act: Federal Contractor Criminal Liability Overseas
The United States government uses hundreds of thousands of civilian contractors and employees overseas. They and their dependents are often subject to local prosecution for the crimes they commit abroad. Whether by agreement, practice, or circumstance—sometimes they are not. This report looks at two bills that would supplement the Military Extraterritorial Jurisdiction Act (MEJA), which permits federal persecution of certain crimes commuted abroad by Defense Department civilian employees, contractors, or their dependents. These two bills are the Civilian Extraterritorial Jurisdiction Act (CEJA) and S.1145.
Date:
February 15, 2012
Creator:
Doyle, Charles
Object Type:
Report
System:
The UNT Digital Library
Comments on Gaugino Screening
Gauge mediated models of supersymmetry breaking often exhibit 'gaugino screening,' where to leading order in F, gaugino masses are unaffected by higher dimensional Kahler potential interactions between the supersymmetry breaking spurion and the messengers. We provide a derivation of this phenomenon which utilizes the gaugino counterterm originally proposed in the context of anomaly mediation by Dine and Seiberg. We argue that this counterterm is present when there are non-zero messenger F-terms, and can cancel the leading order Feynman diagram contribution to the gaugino mass. We provide a nontrivial check of the regulator independence of our results by performing the computation using both dimensional reduction and Pauli-Villars. This analysis reconciles an apparent contradiction between diagrammatics and analytic continuation into superspace.
Date:
February 15, 2012
Creator:
Cohen, Timothy; Hook, Anson & Wecht, Brian
Object Type:
Article
System:
The UNT Digital Library
Community Services Block Grants (CSBG): Background and Funding
This report looks at the purpose and background of Community Services Block Grants (CSBG), which provide federal funds to states, territories, and tribes for distribution to local agencies to support a wide range of community-based activities to reduce poverty. CSBG was last reauthorized in 1998, although and related programs have been funded by Congressional approval since then.
Date:
February 15, 2012
Creator:
Spar, Karen
Object Type:
Report
System:
The UNT Digital Library