Latin America and the Caribbean: Fact Sheet on Leaders and Elections (open access)

Latin America and the Caribbean: Fact Sheet on Leaders and Elections

This fact sheet tracks the current heads of government in Central and South America, Mexico, and the Caribbean. It provides the dates of the last and next elections for the head of government and the national independence date for each country.
Date: April 2, 2010
Creator: Gomez-Granger, Julissa & Sullivan, Mark P.
Object Type: Report
System: The UNT Digital Library
Army Corps of Engineers: Budget Formulation Process Emphasizes Agencywide Priorities, but Transparency of Budget Presentation Could Be Improved (open access)

Army Corps of Engineers: Budget Formulation Process Emphasizes Agencywide Priorities, but Transparency of Budget Presentation Could Be Improved

A letter report issued by the Government Accountability Office with an abstract that begins "The U.S. Army Corps of Engineers (Corps) is the world's largest public engineering, design, and construction management agency. In fiscal year 2006 it began incorporating performance information into its budget process, but Congress raised concerns that the criteria used by the Corps to prioritize projects are not transparent and the budget formulation process could achieve a higher return on investment. GAO was asked to (1) describe the information the Corps uses in its budget formulation process and the implications of the process, and (2) evaluate whether the President's recent budget requests for the Corps are presented so that agency priorities are clear and proposed use of funds transparent. GAO reviewed the Corps' internal budget guidance, documentation of its project rankings and budget formulation process, performance review materials, and budget presentation materials. GAO also interviewed Corps and Office of Management and Budget officials."
Date: April 2, 2010
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
U.S.-Russia Meat and Poultry Trade Issues (open access)

U.S.-Russia Meat and Poultry Trade Issues

In December 2008, the United States and Russia signed a protocol aimed at resolving various emerging trade issues between the two countries in order to continue U.S. livestock and poultry exports to Russia through the end of 2009. This report examines the current trade relationship between the U.S. and Russia in regards to meat and poultry.
Date: April 2, 2010
Creator: Johnson, Renée & Becker, Geoffrey S.
Object Type: Report
System: The UNT Digital Library
National Library of Medicine Web Resources for Student Health Professionals (open access)

National Library of Medicine Web Resources for Student Health Professionals

Familiarize students affiliated with the Student National Medical Association with the National Library of Medicine's online resources that address medical conditions, health disparities, and public health preparedness needs.
Date: April 2, 2010
Creator: Womble, R.
Object Type: Book
System: The UNT Digital Library
Report on 238Pu(n,x) surrogate cross section measurement (open access)

Report on 238Pu(n,x) surrogate cross section measurement

The goal of this year's effort is to measure the {sup 238}Pu(n,f) and {sup 238}Pu(n,2n) cross section from 100 keV to 20 MeV. We designed a surrogate experiment that used the reaction {sup 239}Pu(a,a{prime}x) as a surrogate for {sup 238}Pu(n,x). The experiment was conducted using the STARS/LIBERACE experimental facility located at the 88 Inch Cyclotron at Lawrence Berkeley National Laboratory in January 2010. A description of the experiment and status of the data analysis is given. In order to obtain a reliable {sup 238}Pu(n,x) cross section we designed the experiment using the surrogate ratio technique. This technique allows one to measure a desired, unknown, cross section relative to a known cross section. In the present example, the {sup 238}Pu(n,x) cross section of interest is determined relative to the known {sup 235}U(n,x) cross section. To increase confidence in the results, and to reduce overall uncertainties, we are also determining the {sup 238}Pu(n,x) cross section relative to the known {sup 234}U(n,x) cross section. The compound nuclei of interest for this experiment were produced using inelastic alpha scattering. For example, {sup 236}U(a,a{prime}x) served as a surrogate for {sup 235}U(n,x); analogous reactions were considered for the other cross sections. Surrogate experiments determine the probabilities …
Date: April 2, 2010
Creator: Burke, J. T.; Ressler, J. J.; Henderson, R. A.; Scielzo, N. D.; Escher, J. E.; Thompson, I. J. et al.
Object Type: Report
System: The UNT Digital Library
Size-Controlled Synthesis and Optical Properties of Monodisperse Colloidal Magnesium Oxide Nanocrystals (open access)

Size-Controlled Synthesis and Optical Properties of Monodisperse Colloidal Magnesium Oxide Nanocrystals

colloids ? luminescence ? metal oxides ? nanocrystals ? synthesis design
Date: April 2, 2010
Creator: Milliron, Delia J.; Urban, Jeffrey J. & Moon, Hoi Ri
Object Type: Article
System: The UNT Digital Library
Constraints on the flux of Ultra-High Energy neutrinos from WSRT observations (open access)

Constraints on the flux of Ultra-High Energy neutrinos from WSRT observations

Context. Ultra-high energy (UHE) neutrinos and cosmic rays initiate particle cascades underneath theMoon?s surface. These cascades have a negative charge excess and radiate Cherenkov radio emission in a process known as the Askaryan effect. The optimal frequencywindow for observation of these pulses with radio telescopes on the Earth is around 150 MHz. Aims. By observing the Moon with the Westerbork Synthesis Radio Telescope array we are able to set a new limit on the UHEneutrino flux. Methods. The PuMa II backend is used to monitor the Moon in 4 frequency bands between 113 and 175 MHz with a samplingfrequency of 40 MHz. The narrowband radio interference is digitally filtered out and the dispersive effect of the Earth?s ionosphere is compensated for. A trigger system is implemented to search for short pulses. By inserting simulated pulses in the raw data, thedetection efficiency for pulses of various strength is calculated. Results. With 47.6 hours of observation time, we are able to set a limit onthe UHE neutrino flux. This new limit is an order of magnitude lower than existing limits. In the near future, the digital radio array LOFAR will be used to achieve an even lower limit.
Date: April 2, 2010
Creator: Scholten, O.; Bacelar, J.; Braun, R.; de Bruyn, A.G.; Falcke, H.; Singh, K. et al.
Object Type: Article
System: The UNT Digital Library
Response and Uniformity Studies of Directly Coupled Tiles (open access)

Response and Uniformity Studies of Directly Coupled Tiles

A finely-segmented scintillator-based calorimeter which capitalizes on the marriage of proven detection techniques with novel solid-state photo-detector devices such as Multi-pixel Photon Counters (MPPCs) is an interesting calorimetric system from the point of view of future detector design. A calorimeter system consisting of millions of channels will require a high degree of integration. The first steps towards this integration have already been facilitated by the small size and magnetic field immunity of the MPPCs. The photo-conversion occurs right at the tile, thus obviating the need for routing of long clear fibers. Similar considerations apply to the presence of wave-length shifting (WLS) fibers inside the tiles which couple it to the photo-detectors. Significant simplification in construction and assembly ensue if the MPPCs can be coupled directly to the scintillator tiles. Equally importantly, the total absence of fibers would offer greater flexibility in the choice of the transverse segmentation while enhancing the electro-mechanical integrability of the design. The NIU high-energy physics group has been studying the fiberless or direct-coupling option for some time now. Encouraging results on response and response uniformity have been obtained using radioactive sources. This MOU seeks to set up a framework to extend these tests using beams at …
Date: April 2, 2010
Creator: Zutshi, Vishnu
Object Type: Report
System: The UNT Digital Library
International Criminal Court Cases in Africa: Status and Policy Issues (open access)

International Criminal Court Cases in Africa: Status and Policy Issues

This report provides background on current International Criminal Court (ICC) cases and examines issues raised by the ICC's actions in Africa, including the potential deterrence of future abuses and the potential impact on African peace processes.
Date: April 2, 2010
Creator: Arieff, Alexis; Margesson, Rhoda & Browne, Marjorie Ann
Object Type: Report
System: The UNT Digital Library
North Korea's 2009 Nuclear Test: Containment, Monitoring, Implications (open access)

North Korea's 2009 Nuclear Test: Containment, Monitoring, Implications

This report discusses the implications of North Korea's May 25, 2009, underground nuclear test, related issues such as the the Comprehensive Nuclear-Test-Ban Treaty (CTBT), containment of radioactive materials, and other concerns for Congress, such as improving nuclear monitoring capability.
Date: April 2, 2010
Creator: Medalia, Jonathan
Object Type: Report
System: The UNT Digital Library
Economic Development Administration: Reauthorization and Funding Issues in the 111th Congress (open access)

Economic Development Administration: Reauthorization and Funding Issues in the 111th Congress

This report discusses the economic development program re-authorization issues and appropriations.
Date: April 2, 2010
Creator: Gonzales, Oscar R. & Boyd, Eugene
Object Type: Report
System: The UNT Digital Library
Is the U.S. Current Account Deficit Sustainable? (open access)

Is the U.S. Current Account Deficit Sustainable?

This report reviews studies on the America's current account (CA) deficit's sustainability. Some of the studies suggest that a large dollar depreciation could eventually be required to restore sustainability. But the inflation-adjusted 25% depreciation of the dollar from 2002-2008 had little effect on the CA deficit, which kept growing until 2007.
Date: April 2, 2010
Creator: Labonte, Marc
Object Type: Report
System: The UNT Digital Library
F-35 Joint Strike Fighter (JSF) Program: Background and Issues for Congress (open access)

F-35 Joint Strike Fighter (JSF) Program: Background and Issues for Congress

This report discusses the F-35 Joint Strike Fighter (JSF), also called the Lighting II, which is a new strike fighter being procured in different versions by the Air Force, Marine Corps, and Navy. It details the Obama Administration's proposed FY2010 defense budget requests for F-35 program funding and outlines the issues that Congress must consider when deciding whether to approve, reject, or modify the administration's funding requests.
Date: April 2, 2010
Creator: Gertler, Jeremiah
Object Type: Report
System: The UNT Digital Library
Medical Marijuana: Review and Analysis of Federal and State Policies (open access)

Medical Marijuana: Review and Analysis of Federal and State Policies

None
Date: April 2, 2010
Creator: unknown
Object Type: Report
System: The UNT Digital Library
VERTICAL PILLAR ARRAYS FOR PLASMON NANOCAVITIES (open access)

VERTICAL PILLAR ARRAYS FOR PLASMON NANOCAVITIES

We investigate tunable plasmon resonant cavity arrays in paired parallel nanowire waveguides. Resonances are observed when the waveguide length is an odd multiple of quarter plasmon wavelengths, consistent with boundary conditions of node and antinode at the ends. Two nanowire waveguides satisfy the dispersion relation of a planar metal-dielectric-metal waveguide of equivalent width equal to the square field average weighted gap. Confinement factors over 10{sup 3} are possible due to plasmon focusing in the inter-wire space.
Date: April 2, 2010
Creator: Bora, M.; Fasenfest, B. J.; Behymer, E. M.; Chang, A. S.; Hguyen, H. T.; Britten, J. A. et al.
Object Type: Article
System: The UNT Digital Library
Stardust and the Molecules of Life (Why are the Amino Acids Left-Handed?) (open access)

Stardust and the Molecules of Life (Why are the Amino Acids Left-Handed?)

A mechanism for creating and selecting amino acid chirality is identified, and subsequent chemical replication and galactic mixing that would populate the galaxy with the predominant species will be described. This involves: (1) the spin of the {sup 14}N in the amino acids, or in precursor molecules from which amino acids might be formed, coupling to the chirality of the molecules; (2) the neutrinos emitted from the supernova, together with magnetic field from the nascent neutron star or black hole from the supernova selectively destroying one orientation of the {sup 14}N, thereby selecting the chirality associated with the other {sup 14}N orientation; (3) amplification by chemical evolution, by which the molecules replicate on a relatively short timescale; and (4) galactic mixing on a longer timescale mixing the selected molecules throughout the galaxy.
Date: April 2, 2010
Creator: Boyd, Richard N.; Kajino, Toshitaka & Onaka, Takashi
Object Type: Article
System: The UNT Digital Library
Latin America and the Caribbean: Fact Sheet on Leaders and Elections (open access)

Latin America and the Caribbean: Fact Sheet on Leaders and Elections

This fact sheet tracks the current heads of government in Central and South America, Mexico, and the Caribbean. It provides the dates of the last and next elections for the head of government and the national independence date for each country.
Date: April 2, 2010
Creator: Gomez-Granger, Julissa & Sullivan, Mark P.
Object Type: Report
System: The UNT Digital Library
Texas Register, Volume 35, Number 14, Pages 2685-2792, April 2, 2010 (open access)

Texas Register, Volume 35, Number 14, Pages 2685-2792, April 2, 2010

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: April 2, 2010
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Federal Register, Volume 75, Number 63, April 2, 2010, Pages 16641-17024 (open access)

Federal Register, Volume 75, Number 63, April 2, 2010, Pages 16641-17024

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 2, 2010
Creator: United States. Office of the Federal Register.
Object Type: Journal/Magazine/Newsletter
System: The UNT Digital Library
The SAFRA Act: Education Programs in the FY2010 Budget Reconciliation (open access)

The SAFRA Act: Education Programs in the FY2010 Budget Reconciliation

None
Date: April 2, 2010
Creator: Dortch, Cassandria; Smole, David P. & Mahan, Shannon M.
Object Type: Report
System: The UNT Digital Library
The Statutory Pay-As-You-Go Act of 2010: Summary and Legislative History (open access)

The Statutory Pay-As-You-Go Act of 2010: Summary and Legislative History

None
Date: April 2, 2010
Creator: Keith, Robert
Object Type: Report
System: The UNT Digital Library