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World Trade Organization: Congress Faces Key Decisions as Efforts to Reach Doha Agreement Intensify

Description: A letter report issued by the Government Accountability Office with an abstract that begins "President Bush has identified the success of global trade talks launched in Doha, Qatar, in November 2001 as one of the United States' top trade policy priorities. Known as the Doha Development Agenda, the talks are an important means of spurring global growth and development. Completing the talks in 2006 was considered essential for an agreement to qualify for streamlined congressional consideration un… more
Date: March 5, 2007
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Foreign Assistance: U.S. Assistance to the West Bank and Gaza for Fiscal Years 2005 and 2006

Description: Correspondence issued by the Government Accountability Office with an abstract that begins "For decades, the United States has worked toward the resolution of the Israeli-Palestinian conflict, most recently under the 2003 Roadmap for Peace, which calls for an independent Palestinian state coexisting peacefully with the State of Israel. Since fiscal year 1993, the United States has provided more than $2.2 billion in assistance to the West Bank and Gaza to support the Middle East peace process an… more
Date: March 5, 2007
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

DOD and VA Health Care: Challenges Encountered by Injured Servicemembers during Their Recovery Process

Description: Testimony issued by the Government Accountability Office with an abstract that begins "As of March 1, 2007, over 24,000 servicemembers have been wounded in action since the onset of Operation Enduring Freedom (OEF) and Operation Iraqi Freedom (OIF), according to the Department of Defense (DOD). GAO work has shown that servicemembers injured in combat face an array of significant medical and financial challenges as they begin their recovery process in the health care systems of DOD and the Depar… more
Date: March 5, 2007
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Non-destructive Identification of Individual Leukemia Cells by Optical Trapping Raman Spectroscopy

Description: Currently, a combination of technologies is typically required to assess the malignancy of cancer cells. These methods often lack the specificity and sensitivity necessary for early, accurate diagnosis. Here we demonstrate using clinical samples the application of laser trapping Raman spectroscopy as a novel approach that provides intrinsic biochemical markers for the noninvasive detection of individual cancer cells. The Raman spectra of live, hematopoietic cells provide reliable molecular fing… more
Date: March 5, 2007
Creator: Chan, J W; Taylor, D S; Lane, S; Zwerdling, T; Tuscano, J & Huser, T
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Allinea DDT as a Parallel Debugging Alternative to Totalview

Description: Totalview, from the Etnus Corporation, is a sophisticated and feature rich software debugger for parallel applications. As Totalview has gained in popularity and market share its pricing model has increased to the point where it is often prohibitively expensive for massively parallel supercomputers. Additionally, many of Totalview's advanced features are not used by members of the scientific computing community. For these reasons, supercomputing centers have begun to search for a basic parallel… more
Date: March 5, 2007
Creator: Antypas, K.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Assessing the Effect of Timing of Availability for Carbon Dioxide Storage in the Largest Oil and Gas Pools in the Alberta Basin: Description of Data and Methodology

Description: Carbon dioxide capture from large stationary sources and storage in geological media is a technologically-feasible mitigation measure for the reduction of anthropogenic emissions of CO2 to the atmosphere in response to climate change. Carbon dioxide (CO2) can be sequestered underground in oil and gas reservoirs, in deep saline aquifers, in uneconomic coal beds and in salt caverns. The Alberta Basin provides a very large capacity for CO2 storage in oil and gas reservoirs, along with significant … more
Date: March 5, 2007
Creator: Dahowski, Robert T. & Bachu, Stefan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Theory Challenges of the Accelerating Universe

Description: The accelerating expansion of the universe presents an exciting, fundamental challenge to the standard models of particle physics and cosmology. I highlight some of the outstanding challenges in both developing theoretical models and interpreting without bias the observational results from precision cosmology experiments in the next decade that will return data to help reveal the nature of the new physics. Examples given focus on distinguishing a new component of energy from a new law of gravit… more
Date: March 5, 2007
Creator: Linder, Eric V.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A Three-Year Study of Ichyoplankton in Coastal Plains Reaches of the Savannah River Site and its Tributaries

Description: Altering flow regimes of rivers has large effects on native floras and faunas because native species are adapted to the natural flow regime, many species require lateral connectivity with floodplain habitat for feeding or spawning, and the change in regime often makes it possible for invasive species to replace natives (Bunn & Arthington 2002). Floodplain backwaters, both permanent and temporary, are nursery areas for age 0+ fish and stable isotope studies indicate that much of the productivity… more
Date: March 5, 2007
Creator: Martin, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Understanding and Improving High Voltage Vacuum Insulators for Microsecond Pulses

Description: High voltage insulation is one of the main areas of pulsed power research and development, and dielectric breakdown is usually the limiting factor in attaining the highest possible performance in pulsed power devices. For many applications the delivery of pulsed power into a vacuum region is the most critical aspect of operation. The surface of an insulator exposed to vacuum can fail electrically at an applied field more than an order or magnitude below the bulk dielectric strength of the insul… more
Date: March 5, 2007
Creator: Javedani, J. B.; Goerz, D. A.; Houck, T. L.; Lauer, E. J.; Speer, R. D.; Tully, L. K. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Constraints on Meta-stable de Sitter Flux Vacua

Description: We consider flux compactification of type IIB string theory as the orientifold limit of an F-theory on a Calabi-Yau fourfold. We show that when supersymmetry is dominantly broken by the axion-dilaton and the contributions of the F-terms associated with complex structure moduli are small, the Hessian of the flux potential always has tachyonic modes for de Sitter vacua. This implies that there exist no meta-stable de Sitter vacua in this limit. Moreover, we find that the stability requirement imp… more
Date: March 5, 2007
Creator: Soroush, Masoud
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Emittance Correction in the 2006 ILC Bunch Compressor

Description: A recent study [1] has indicated substantial potential emittance growth in the ILC bunch compressor due to quad misalignments, BPM misalignments, and pitches in the RF cavities. Table 1 summarizes several results from [1]. In this simulation, quad misalignments and cavity pitches are Gaussian distributed and are considered with respect to the nominal survey line; BPM misalignments are also Gaussian-distributed but are considered with respect to the quadrupole axis. It is assumed that the BPM of… more
Date: March 5, 2007
Creator: Tenenbaum, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Topology of On/Off Marx Modulator with Protection of Load and Solid State Switches

Description: This article discusses a proposal for an ultra fast feedback response that will protect the load and solid state switches of the ON/OFF Marx type modulators. The feedback guards main elements of a modulator against possible arcs in the load, particularly arcs inside of the electron guns. The chief concept behind the proposed response system is an employment of a fraction of the output modulator power as a controlling and guarding pulse during the delivery time. The time constant of the proposed… more
Date: March 5, 2007
Creator: Krasnykh, Anatoly
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

XMM-Newton Observations Reveal the X-ray Counterpart of the Very-high-energy gamma-ray Source HESS J1640-465

Description: We present X-ray observations of the as of yet unidentified very high-energy (VHE) {gamma}-ray source HESS J1640-465 with the aim of establishing a counterpart of this source in the keV energy range, and identifying the mechanism responsible for the VHE emission. The 21.8 ksec XMM-Newton observation of HESS J1640-465 in September 2005 represents a significant improvement in sensitivity and angular resolution over previous ASCA studies in this region. These new data show a hard-spectrum X-ray em… more
Date: March 5, 2007
Creator: Funk, S.; Hinton, J. A.; Puhlhofer, G.; Aharonian, F. A.; Hofmann, W.; Reimer, O. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A Monte Carlo Method for Calculating Initiation Probability

Description: A Monte Carlo method for calculating the probability of initiating a self-sustaining neutron chain reaction has been developed. In contrast to deterministic codes which solve a non-linear, adjoint form of the Boltzmann equation to calculate initiation probability, this new method solves the forward (standard) form of the equation using a modified source calculation technique. Results from this new method are compared with results obtained from several deterministic codes for a suite of historic… more
Date: March 5, 2007
Creator: Greenman, G M; Procassini, R J & Clouse, C J
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

INTRACELLULAR CHEMICAL MEASUREMENTS:A GENERALIZED APPROACH WITH HIGH-SPATIAL RESOLUTION USING FUNCTIONALIZED NANOPARTICLES

Description: We are developing an alternative approach to optical probes that will ultimately allow us to measure chemical concentrations in microenvironments within cells and tissues. This approach is based on monitoring the surface-enhanced Raman scattering (SERS) response of functionalized metal nanoparticles (50-100 nm in diameter). SERS allows for the sensitive detection of changes in the state of chemical groups attached to individual nanoparticles and small clusters. We present the development of a n… more
Date: March 5, 2007
Creator: Laurence, T
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

e-/e+ Accelerating Structure with Cyclic Variation of Azimuth Asymmetry

Description: A classical electron/positron accelerating structure is a disk-loaded cylindrical waveguide. The accelerator structure here has azimuth symmetry. The proposed structure contains a disk-loaded cylindrical waveguide where there is a periodical change of RF-field vs. azimuth. The modulation deforms the rf-field in such a manner that the accelerated particles undergo transverse focusing forces. The new class of accelerator structures covers the initial part of e+/e- linacs where a bunch is not rigi… more
Date: March 5, 2007
Creator: Krasnykh, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Employment of Second Order Ruled Surfaces in Design of Sheet Beam Guns

Description: A novel 3D method of sheet beam gun design has recently been developed. Second order ruled surfaces (SORS) can be used to define the geometry of the gun electrodes. The gun design process is made simpler if SORS are derived from analytical formulas. A proposed method is discussed and illustrated.
Date: March 5, 2007
Creator: Krasnykh, Anatoly
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A Coreless Approaches for On/Off Marx Type Modulators

Description: SLAC was first to report using ON/OFF switches in Marx type modulator. The development of Marx type modulator was bounded with the NLC need. The high energy physics runs based on the ILC concept where longer modulator pulse width is required. The SLAC idea of coreless modulators was useful for other applications (medicine, military, home security, etc.). The discussed conception is presented as a continuation of the earlier published articles. Several types of the Marx ON/OFF type modulators ar… more
Date: March 5, 2007
Creator: Krasnykh, Anatoly
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Radiative Penguin Decays at the B Factories

Description: Recent results from the B-Factories on radiative decays such as b {yields} s(d){gamma}, b {yields} s{ell}{ell} and leptonic decay B{sup 0} {yields} {tau}{sup +}{tau}{sup -} are reviewed.
Date: March 5, 2007
Creator: Cuhadar-Donszelmann, T. & U., /British Columbia
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Wheat phytotoxicity from arsenic and cadmium separately and together in solution culture and in a calcareous soil

Description: The toxicity effect of two deleterious elements of arsenic (As) and cadmium (Cd) (individually or in combination) on root elongation of wheat seedlings (Triticum aestivum, L.) were investigated both in hydroponics and in soils freshly spiked with the toxic elements. Median effective concentration (EC{sub 50}) and non-observed effect concentration (NOEC) were used to investigate the toxic thresholds and potencies of the two elements. The EC{sub 50} for As was 0.97 {mu}M in hydroponics and 196 mg… more
Date: March 5, 2007
Creator: Cao, Q.; Hu, Q.; Khan, S.; Wang, Z.; Lin, A.; Du, X. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The Wild and Scenic Rivers Act and Federal Water Rights

Description: This report discusses federal authority over water, and federal "reserved" and non-reserved water rights. Based on the language of the act and its legislative history, it appears that the act creates federal water rights. The act does not specify the quantity of the right. The amount of the federal right is likely to vary from river to river depending on the river's flows, the unappropriated flows in the river at the time of designation, and the values for which the river is being protected.
Date: March 5, 2007
Creator: Alexander, Kristina
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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