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308 Matching Results
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AdS/QCD, LIight-Front Holography, and the Non-perturbative Running Coupling
The combination of Anti-de Sitter space (AdS) methods with light-front (LF) holography provides a remarkably accurate first approximation for the spectra and wavefunctions of meson and baryon light-quark bound states. The resulting bound-state Hamiltonian equation of motion in QCD leads to relativistic light-front wave equations in terms of an invariant impact variable {zeta} which measures the separation of the quark and gluonic constituents within the hadron at equal light-front time. These equations of motion in physical space-time are equivalent to the equations of motion which describe the propagation of spin-J modes in anti-de Sitter (AdS) space. The eigenvalues give the hadronic spectrum, and the eigenmodes represent the probability distributions of the hadronic constituents at a given scale. A positive-sign confining dilaton background modifying AdS space gives a very good account of meson and baryon spectroscopy and form factors. The light-front holographic mapping of this model also leads to a non-perturbative effective coupling {alpha}{sub s}{sup Ads} (Q{sup 2}) which agrees with the effective charge defined by the Bjorken sum rule and lattice simulations. It displays a transition from perturbative to nonperturbative conformal regimes at a momentum scale {approx} 1 GeV. The resulting {beta}-function appears to capture the essential characteristics of the …
Date:
April 29, 2010
Creator:
Brodsky, Stanley J.; de Teramond, Guy & Deur, Alexandre
Object Type:
Article
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 134, No. 49, Ed. 1 Thursday, April 29, 2010
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
April 29, 2010
Creator:
Lucas, Melinda L.
Object Type:
Newspaper
System:
The Portal to Texas History
The Altus Times (Altus, Okla.), Vol. 112, No. 103, Ed. 1 Thursday, April 29, 2010
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 29, 2010
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Archer County News (Archer City, Tex.), No. 17, Ed. 1 Thursday, April 29, 2010
Weekly newspaper from Archer City, Texas that includes local, state, and national news along with advertising.
Date:
April 29, 2010
Creator:
Lewis, Shelley
Object Type:
Newspaper
System:
The Portal to Texas History
Assistance to Firefighters Program: Distribution of Fire Grant Funding
This report discusses the Assistance to Firefighters Grant (AFG) Program, also known as fire grants of the FIRE Act grant program, which provides federal grants directly to local fire departments and unaffiliated Emergency Medical Services (EMS) organizations to help address a variety of equipment, training, and other firefighter-related and EMS needs. This report also discusses the possible reauthorization of AFG and the related Staffing for Adequate Fire and Emergency Response Firefighters (SAFER) program.
Date:
April 29, 2010
Creator:
Kruger, Lennard G.
Object Type:
Report
System:
The UNT Digital Library
Auto Industry: Lessons Learned from Cash for Clunkers Program
A letter report issued by the Government Accountability Office with an abstract that begins "In July and August 2009, the federal government implemented the Consumer Assistance to Recycle and Save (CARS) program, or "Cash for Clunkers," a temporary vehicle retirement program that offered consumers a monetary credit ($3,500 or $4,500) to trade in an older vehicle for a new, more fuel-efficient one. The National Highway Traffic Safety Administration (NHTSA) was responsible for administering the program, and GAO was required to review the program's administration. This report examines (1) what is known to date about the extent to which the CARS program achieved its objectives; (2) what stakeholders' experiences were with the CARS program; and (3) how the CARS program compares to other selected domestic and international vehicle retirement programs. To address these issues, GAO reviewed the CARS legislation and implementing regulations, a required NHTSA report to Congress on the program's efficacy, and CARS program transaction data. GAO also contacted officials from NHTSA and the Environmental Protection Agency (EPA); representatives of industry organizations and academics; as well as CARS program stakeholders, including representatives from consumer groups, scrap and salvage industries, automobile manufacturers, vehicle dealerships, and charities. GAO also interviewed officials from …
Date:
April 29, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
The Bastrop Advertiser (Bastrop, Tex.), Vol. 157, No. 17, Ed. 1 Thursday, April 29, 2010
Semi-weekly newspaper from Bastrop, Texas that includes local, state and national news along with advertising.
Date:
April 29, 2010
Creator:
Wright, Cyndi
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 90, No. 85, Ed. 1 Thursday, April 29, 2010
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
April 29, 2010
Creator:
Halter, Janie
Object Type:
Newspaper
System:
The Portal to Texas History
Burma's 2010 Elections: Implications of the New Constitution and Election Laws
This report discusses the November 7, 2010 parliamentary elections in Burma, which have long been controversial, mainly due to election fraud concerns. The report discusses debates about U.S. policy toward Burma, which has been sparked by the elections and the issues surrounding them.
Date:
April 29, 2010
Creator:
Martin, Michael F.
Object Type:
Report
System:
The UNT Digital Library
The Canadian Record (Canadian, Tex.), Vol. 120, No. 17, Ed. 1 Thursday, April 29, 2010
Weekly newspaper from Canadian, Texas that includes local, state and national news along with some advertising.
Date:
April 29, 2010
Creator:
Brown, Laurie Ezzell
Object Type:
Newspaper
System:
The Portal to Texas History
Comanche Chief (Comanche, Tex.), No. 1, Ed. 1 Thursday, April 29, 2010
Weekly newspaper from Comanche, Texas that includes local, state, and national news along with advertising.
Date:
April 29, 2010
Creator:
Wilkerson, James C., III
Object Type:
Newspaper
System:
The Portal to Texas History
Contracting Strategies: Data and Oversight Problems Hamper Opportunities to Leverage Value of Interagency and Enterprisewide Contracts
A letter report issued by the Government Accountability Office with an abstract that begins "Agencies can use several different types of contracts to leverage the government's buying power for goods and services. These include interagency contracts--where one agency uses another's contract for its own needs--such as the General Services Administration (GSA) and the Department of Veterans Affairs multiple award schedule (MAS) contracts, multiagency contracts (MAC) for a wide range of goods and services, and governmentwide acquisition contracts (GWAC) for information technology. Agencies spent at least $60 billion in fiscal year 2008 through these contracts and similar single-agency enterprisewide contracts. However, concerns exist about duplication, oversight, and a lack of information on these contracts, and pricing and management of the MAS program. GAO was asked to assess the reasons for establishing and the policies to manage these contracts; the effectiveness of GSA tools for obtaining best MAS contract prices; and GSA's management of the MAS program. To do this, GAO reviewed statutes, regulations, policies, contract documentation and data, and interviewed officials from OMB and six agencies."
Date:
April 29, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Cooper Review (Cooper, Tex.), Vol. 130, No. 17, Ed. 1 Thursday, April 29, 2010
Weekly newspaper from Cooper, Texas that includes local, state, and national news along with advertising.
Date:
April 29, 2010
Creator:
Palmer, Roger
Object Type:
Newspaper
System:
The Portal to Texas History
DART plans light rail simulation for Texas-OU service
News release about DART's testing of a special Green Line rail service intended to be used on the day of an upcoming football game between the University of Texas and Oklahoma University.
Date:
April 29, 2010
Creator:
Lyons, Morgan & Ball, Mark
Object Type:
Text
System:
The Portal to Texas History
DART sets date for Green Line completion
News release about the upcoming completion of DART'ls light rail Green Line.
Date:
April 29, 2010
Creator:
Lyons, Morgan & Ball, Mark
Object Type:
Text
System:
The Portal to Texas History
Department of Veterans Affairs: Preliminary Observations on Issues Related to Contracting Opportunities for Veteran-owned Small Businesses
Testimony issued by the Government Accountability Office with an abstract that begins "The Veterans Benefits, Health Care, and Information Technology Act of 2006 (the 2006 Act) requires the Department of Veterans Affairs (VA) to give priority to veteranowned and service-disabled veteran-owned small businesses (VOSB and SDVOSB) when awarding contracts to small businesses. This testimony discusses preliminary views on (1) the extent to which VA met its prime contracting goals for SDVOSBs and VOSBs in fiscal years 2007-2009, and (2) VA's progress in implementing procedures to verify the ownership, control, and veteran status of firms in its mandated database. GAO obtained and analyzed data on VA's contracting activities, and reviewed a sample of verified businesses to assess VA's verification program."
Date:
April 29, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
The Dublin Citizen (Dublin, Tex.), Vol. 20, No. 35, Ed. 1 Thursday, April 29, 2010
Weekly newspaper from Dublin, Texas that includes local, state, and national news along with advertising.
Date:
April 29, 2010
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Electra Star-News (Electra, Tex.), Vol. 103, No. 37, Ed. 1 Thursday, April 29, 2010
Weekly newspaper from Electra, Texas that includes local, state, and national news along with advertising.
Date:
April 29, 2010
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Ensemble: 2010-04-29 – Wind Symphony and Symphonic Band
Access:
Use of this item is restricted to the UNT Community
Symphonic winds and band concert presented at the UNT College of Music Winspear Performance Hall.
Date:
April 29, 2010
Creator:
North Texas Wind Symphony
Object Type:
Sound
System:
The UNT Digital Library
Evidence for weak electronic correlations in Fe-pnictides
Using x-ray absorption and resonant inelastic x-ray scattering, charge dynamics at and near the Fe L edges is investigated in Fe pnictide materials, and contrasted to that measured in other Fe compounds. It is shown that the XAS and RIXS spectra for 122 and 1111 Fe pnictides are each qualitatively similar to Fe metal. Cluster diagonalization, multiplet, and density-functional calculations show that Coulomb correlations are much smaller than in the cuprates, highlighting the role of Fe metallicity and strong covalency in these materials. Best agreement with experiment is obtained using Hubbard parameters U {approx}< 2eV and J {approx} 0.8eV.
Date:
April 29, 2010
Creator:
Yang, W.L.
Object Type:
Article
System:
The UNT Digital Library
Federal Evacuation Policy: Issues for Congress
This report discusses federal evacuation policy and analyzes potential lessons learned from the evacuations of individuals in response to the Gulf Coast hurricanes of 2005. It also highlights several issue areas that might arise concerning potential lawmaking and oversight on evacuation policy.
Date:
April 29, 2010
Creator:
Lindsay, Bruce R.
Object Type:
Report
System:
The UNT Digital Library
Federal Register, Volume 75, Number 82, April 29, 2010, Pages 22497-22690
Daily publication of the U.S. Office of the Federal Register contains rules and regulations, proposed legislation and rule changes, and other notices, including "Presidential proclamations and Executive Orders, Federal agency documents having general applicability and legal effect, documents required to be published by act of Congress, and other Federal agency documents of public interest" (p. ii). Table of Contents starts on page iii.
Date:
April 29, 2010
Creator:
United States. Office of the Federal Register.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Finite temperature spin-dynamics and phase transitions in spin-orbital models
We study finite temperature properties of a generic spin-orbital model relevant to transition metal compounds, having coupled quantum Heisenberg-spin and Ising-orbital degrees of freedom. The model system undergoes a phase transition, consistent with that of a 2D Ising model, to an orbitally ordered state at a temperature set by short-range magnetic order. At low temperatures the orbital degrees of freedom freeze-out and the model maps onto a quantum Heisenberg model. The onset of orbital excitations causes a rapid scrambling of the spin spectral weight away from coherent spin-waves, which leads to a sharp increase in uniform magnetic susceptibility just below the phase transition, reminiscent of the observed behavior in the Fe-pnictide materials.
Date:
April 29, 2010
Creator:
Chen, C. C.
Object Type:
Article
System:
The UNT Digital Library
Forestry in the Next Farm Bill
This report discusses about Possible Forestry Issues for a future Farm bill, Markets for Carbon Sequestration, Markets for Other Ecosystem Services, Control of Invasive Species etc.
Date:
April 29, 2010
Creator:
Gorte, Ross W.
Object Type:
Report
System:
The UNT Digital Library