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Trade Adjustment Assistance (TAA) and Its Role in U.S. Trade Policy

Description: This report looks at the background of Trade Adjustment Assistance (TAA) in the Trade Expansion Act of 1962, which was created by Congress. It then discusses how the 112th Congress is considering legislative action to extend the TAA - including two issues: how necessary or appropriate the extension is, and whether or not three proposed bills should be voted upon separately.
Date: August 11, 2011
Creator: Hornbeck, J. F. & Rover, Laine Elise
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Nuclear Cooperation with Other Countries: A Primer

Description: This report discusses section 123 of the Atomic Energy Act (AEA), the specific requirements of which must be met in order for the United States to engage in civilian nuclear cooperation with other states. The AEA also provides for exemptions to these requirements, export control licensing procedures, and criteria for terminating cooperation.
Date: August 11, 2011
Creator: Kerr, Paul K. & Nikitin, Mary Beth
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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TARGET: A multi-channel digitizer chip for very-high-energy gamma-ray telescopes

Description: The next-generation very-high-energy (VHE) gamma-ray observatory, the Cherenkov Telescope Array, will feature dozens of imaging atmospheric Cherenkov telescopes (IACTs), each with thousands of pixels of photosensors. To be affordable and reliable, reading out such a mega-channel array requires event recording technology that is highly integrated and modular, with a low cost per channel. We present the design and performance of a chip targeted to this application: the TeV Array Readout with GSa/… more
Date: August 11, 2011
Creator: Bechtol, K.; Funk, S.; Okumura, A.; Ruckman, L.; Simons, A.; Tajima, H. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A Heteroepitaxial Perovskite Metal-Base Transistor

Description: 'More than Moore' captures a concept for overcoming limitations in silicon electronics by incorporating new functionalities in the constituent materials. Perovskite oxides are candidates because of their vast array of physical properties in a common structure. They also enable new electronic devices based on strongly-correlated electrons. The field effect transistor and its derivatives have been the principal oxide devices investigated thus far, but another option is available in a different ge… more
Date: August 11, 2011
Creator: Yajima, T.; Hikita, Y. & Hwang, H. Y.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Reco level Smin and subsystem Smin: improved global inclusive variables for measuring the new physics mass scale in MET events at hadron colliders

Description: The variable {radical}s{sub min} was originally proposed in [1] as a model-independent, global and fully inclusive measure of the new physics mass scale in missing energy events at hadron colliders. In the original incarnation of {radical}s{sub min}, however, the connection to the new physics mass scale was blurred by the effects of the underlying event, most notably initial state radiation and multiple parton interactions. In this paper we advertize two improved variants of the {radical}s{sub … more
Date: August 11, 2011
Creator: Konar, Partha; Kong, Kyoungchul; Matchev, Konstantin T. & Park, Myeonghun
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Discovering New Light States at Neutrino Experiments

Description: Experiments designed to measure neutrino oscillations also provide major opportunities for discovering very weakly coupled states. In order to produce neutrinos, experiments such as LSND collide thousands of Coulombs of protons into fixed targets, while MINOS and MiniBooNE also focus and then dump beams of muons. The neutrino detectors beyond these beam dumps are therefore an excellent arena in which to look for long-lived pseudoscalars or for vector bosons that kinetically mix with the photon.… more
Date: August 11, 2011
Creator: Essig, Rouven; Harnik, Roni; Kaplan, Jared & Toro, Natalia
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Energy Gaps in the Failed High-Tc Superconductor La1.875Ba0.125CuO4

Description: A central issue in high-T{sub c} superconductivity is the nature of the normal-state gap (pseudogap) in the underdoped regime and its relationship with superconductivity. Despite persistent efforts, theoretical ideas for the pseudogap evolve around fluctuating superconductivity, competing order, and spectral weight suppression due to many-body effects. Recently, although some experiments in the superconducting state indicate a distinction between the superconducting gap and pseudogap, others in… more
Date: August 11, 2011
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Reentrant Insulating State in Ultrathin Manganite Films

Description: The transport and magnetic properties of La{sub 0.7}Sr{sub 0.3}MnO{sub 3} thin-films grown by pulsed laser deposition on (LaAlO{sub 3}){sub 0.3}(SrAl{sub 0.5}Ta{sub 0.5}O{sub 3}){sub 0.7} single crystal substrates have been investigated. A systematic series with various thicknesses of La{sub 0.7}Sr{sub 0.3}MnO{sub 3} was used to establish a phase diagram - which showed a clear difference compared to films grown on SrTiO{sub 3} substrates, highlighting the importance of film thickness and substr… more
Date: August 11, 2011
Creator: Bell, Christopher
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Indirect Dark Matter Detection Limits from the Ultra-Faint Milky Way Satellite Segue 1

Description: We use new kinematic data from the ultra-faint Milky Way satellite Segue 1 to model its dark matter distribution and derive upper limits on the dark matter annihilation cross-section. Using gamma-ray ux upper limits from the Fermi satellite and MAGIC, we determine cross-section exclusion regions for dark matter annihilation into a variety of different particles including charged leptons. We show that these exclusion regions are beginning to probe the regions of interest for a dark matter interp… more
Date: August 11, 2011
Creator: Essig, Rouven; Sehgal, Neelima; Strigari, Louis E.; Geha, Marla & Simon, Joshua D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Nanometer-Scale Epitaxial Strain Release in Perovskite Heterostructures Using 'SrAlOx' Sliding Buffer Layers

Description: We demonstrate the strain release of LaAlO{sub 3} epitaxial film on SrTiO{sub 3} (001) by inserting ultra-thin 'SrAlO{sub x}' buffer layers. Although SrAlO{sub x} is not a perovskite, nor stable as a single phase in bulk, epitaxy stabilizes the perovskite structure up to a thickness of 2 unit cells (uc). At a critical thickness of 3 uc of SrAlO{sub x}, the interlayer acts as a sliding buffer layer, and abruptly relieves the lattice mismatch between the LaAlO{sub 3} filmand the SrTiO{sub 3} subs… more
Date: August 11, 2011
Creator: Bell, Christopher
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Cosmic Ray Anomalies from the MSSM?

Description: The recent positron excess in cosmic rays (CR) observed by the PAMELA satellite may be a signal for dark matter (DM) annihilation. When these measurements are combined with those from FERMI on the total (e{sup +} + e{sup -}) ux and from PAMELA itself on the {anti p}p ratio, these and other results are difficult to reconcile with traditional models of DM, including the conventional minimal Supergravity (mSUGRA) version of Supersymmetry even if boosts as large as 10{sup 3-4} are allowed. In this … more
Date: August 11, 2011
Creator: Cotta, R. C.; Conley, J. A.; Gainer, J. S.; Hewett, J. L. & Rizzo, T. G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

LaVo4: Eu Phosphor Films with Enhanced Eu Solubility

Description: Eu doped rare-earth orthovanadates are known to be good red phosphor materials. In particular, LaVO{sub 4}:Eu is a promising candidate due to the low Eu-site point symmetry, and thus high dipole transition probability within Judd-Ofelt theory. However, the low solubility limit (< 3 mol %) of Eu in LaVO{sub 4} prevents its efficient use as a phosphor. We present optical evidence of enhanced Eu solubility as high as 10 mol % in LaVO{sub 4}:Eu thin films grown by pulsed laser deposition and pos… more
Date: August 11, 2011
Creator: Hwang, Harold
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Discovery of a GeV Blazar Shining Through the Galactic Plane

Description: The Fermi Large Area Telescope (LAT) discovered a new gamma-ray source near the Galactic plane, Fermi J0109+6134, when it flared brightly in 2010 February. The low Galactic latitude (b = -1.2{sup o}) indicated that the source could be located within the Galaxy, which motivated rapid multi-wavelength follow-up including radio, optical, and X-ray observations. We report the results of analyzing all 19 months of LAT data for the source, and of X-ray observations with both Swift and the Chandra X-r… more
Date: August 11, 2011
Creator: Vandenbroucke, J.; Buehler, R.; Ajello, M.; Bechtol, K.; Bellini, A.; Bolte, M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Next-Generation Building Energy Management Systems and Implications for Electricity Markets.

Description: The U.S. national electric grid is facing significant changes due to aggressive federal and state targets to decrease emissions while improving grid efficiency and reliability. Additional challenges include supply/demand imbalances, transmission constraints, and aging infrastructure. A significant number of technologies are emerging under this environment including renewable generation, distributed storage, and energy management systems. In this paper, we claim that predictive energy management… more
Date: August 11, 2011
Creator: Zavala, V. M.; Thomas, C.; Zimmerman, M. & Ott, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Status of Monte-Carlo Event Generators

Description: Recent progress on general-purpose Monte-Carlo event generators is reviewed with emphasis on the simulation of hard QCD processes and subsequent parton cascades. Describing full final states of high-energy particle collisions in contemporary experiments is an intricate task. Hundreds of particles are typically produced, and the reactions involve both large and small momentum transfer. The high-dimensional phase space makes an exact solution of the problem impossible. Instead, one typically reso… more
Date: August 11, 2011
Creator: Hoeche, Stefan
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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RISK COMMUNICATION FOR ES&H PROFESSIONALS AND LINE SUPERVISORS PARTICIPANT MANUAL COURSE NUMBER 004111 REV 0.1 JULY 2011

Description: This course will help you successfully apply risk communication principles when interacting with workers regarding work hazards. What Is the Difference Between a Risk and a Hazard? In many cases, the terms 'risk' and 'hazard' are incorrectly used interchangeably. A hazard is a physical condition or practice with the potential for causing harm/adverse effects. A risk is the probability of harm/adverse effects occurring from an exposure to a hazard. It is modified by the severity of harm (the con… more
Date: August 11, 2011
Creator: PK, ALDRIDGE & S, ROCKS
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Tuning the Electron Gas at an Oxide Heterointerface via Free Surface Charges

Description: Oxide heterointerfaces are emerging as one of the most exciting materials systems in condensed matter science. One remarkable example is the LaAlO{sub 3}/SrTiO{sub 3} (LAO/STO) interface, a model system in which a highly mobile electron gas forms between two band insulators, exhibiting two dimensional superconductivity and unusual magnetotransport properties. An ideal tool to tune such an electron gas is the electrostatic field effect. In principle, the electrostatic field can be generated by b… more
Date: August 11, 2011
Creator: Bell, Christopher
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Observation of the dynamics leading to a conical intersection in dissociative electron attachment to water

Description: Following prior work on the lower-energy resonances, we apply techniques of momentum imaging and ab initio scattering calculations to the process of dissociative electron attachment to water via the highest-energy {sup 2}B{sub 2} resonance. We focus on the H{sup -} anion fragment, which is produced via dynamics passing through and avoiding the conical intersection with the lower A{sub 1} state, leading to OH ({sup 2}{Pi}#5;) and OH ({sup 2}{Sigma}#6;), respectively. The momentum imaging techniq… more
Date: August 11, 2011
Creator: Haxton, D.; Adaniya, H.; Slaughter, D. S.; Rudek, B.; Osipov, T.; Weber, T. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Enhancing the Electron Mobility via Delta-Doping in SrTiO3

Description: We fabricated high-mobility {delta}-doped structures in SrTiO{sub 3} thin films in order to investigate the low temperature electronic transport properties of confined carriers in this system. An enhancement of the electron mobility above the bulk value was observed as the doped layer thickness decreased. High-field Hall measurements revealed that this mobility enhancement originates from higher-mobility electrons in the undoped clean regions, which have quantum-mechanically broadened from the … more
Date: August 11, 2011
Creator: Kozuka, Y.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Lorentz Violation in Warped Extra Dimensions

Description: Higher dimensional theories which address some of the problematic issues of the Standard Model(SM) naturally involve some form of D = 4 + n-dimensional Lorentz invariance violation (LIV). In such models the fundamental physics which leads to, e.g., field localization, orbifolding, the existence of brane terms and the compactification process all can introduce LIV in the higher dimensional theory while still preserving 4-d Lorentz invariance. In this paper, attempting to capture some of this phy… more
Date: August 11, 2011
Creator: Rizzo, Thomas G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Equilibrium Speciation of Select Lanthanides in the Presence of Acidic Ligands in Homo- and Heterogeneous Solutions

Description: This dissertation explores lanthanide speciation in liquid solution systems related to separation schemes involving the acidic ligands: bis(2-ethylhexyl) phosphoric acid (HDEHP), lactate, and 8-hydroxyquinoline. Equilibrium speciation of neodymium (Nd3+), sodium (Na+), HDEHP, water, and lactate in the TALSPEAK liquid-liquid extraction system was explored under varied Nd3+ loading of HDEHP in the organic phase and through extraction from aqueous HCl and lactate media. System speciation was probe… more
Date: August 11, 2011
Creator: Robinson, Troy A.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

AGN Clustering in the Local Universe: An Unbiased Picture from Swift-BAT

Description: We present the clustering measurement of hard X-ray selected AGN in the local Universe. We used a sample of 199 sources spectroscopically confirmed detected by Swift-BAT in its 15-55 keV all-sky survey. We measured the real space projected auto-correlation function and detected a signal significant on projected scales lower than 200 Mpc/h. We measured a correlation length of r{sub 0} = 5.56{sup +0.49}{sub -0.43} Mpc/h and a slope {gamma} = 1.64{sup -0.08}{sub -0.07}. We also measured the auto-c… more
Date: August 11, 2011
Creator: Cappelluti, N.; /Garching, Max Planck Inst., MPE; Ajello, M.; /SLAC /KIPAC, Menlo Park; Burlon, D.; /Garching, Max Planck Inst., MPE et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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