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Correlation and Prediction of Partition Coefficients from the Gas Phase and from Water to Alkan-1-ols (open access)

Correlation and Prediction of Partition Coefficients from the Gas Phase and from Water to Alkan-1-ols

Article discussing correlation and prediction of partition coefficients from the gas phase and from water to alkan-1-ols.
Date: April 22, 2008
Creator: Abraham, M. H. (Michael H.); Nasezadeh, Asadollah & Acree, William E. (William Eugene)
Object Type: Article
System: The UNT Digital Library
Improved Measurement of the CKM Angle gamma in B^-+ to D^(*) K^(*)-+Decays with a Dalitz Plot Analysis of D Decays to K_S^0 pi+ pi- and K_S^0 K+ K- (open access)

Improved Measurement of the CKM Angle gamma in B^-+ to D^(*) K^(*)-+Decays with a Dalitz Plot Analysis of D Decays to K_S^0 pi+ pi- and K_S^0 K+ K-

We report on an improved measurement of the Cabibbo-Kobayashi-Maskawa CP-violating phase {gamma} through a Dalitz plot analysis of neutral D meson decays to K{sub s}{sup 0}{pi}{sup +}{pi}{sup -} and K{sub s}{sup 0}K{sup +}K{sup -} produced in the processes B{sup {-+}} {yields} DK{sup {-+}}, B{sup {-+}} {yields} D* K{sup {-+}} with D* {yields} D{pi}{sup 0}, D{gamma}, and B{sup {-+}} {yields} DK*{sup {-+}} with K8{sup {-+}} {yields} K{sub S}{sup 0}{pi}{sup {-+}}. Using a sample of 383 million B{bar B} pairs collected by the BABAR detector, we measure {gamma} = (76 {+-} 22 {+-} 5{+-} 5){sup o} (mod 180{sup o}), where the first error is statistical, the second is the experimental systematic uncertainty and the third reflects the uncertainty on the description of the Dalitz plot distributions. The corresponding two standard deviation region is 29{sup o} < {gamma} < 122{sup o}. This result has a significance of direct CP violation ({gamma} {ne} 0) of 3.0 standard deviations.
Date: April 22, 2008
Creator: Aubert, B.
Object Type: Article
System: The UNT Digital Library
Observation of B^+\to\eta\rho^+ and Search for B^0 Decays to\eta^\prime\eta, \eta\pi^0, \eta^\prime\pi^0, and \omega\pi^0 (open access)

Observation of B^+\to\eta\rho^+ and Search for B^0 Decays to\eta^\prime\eta, \eta\pi^0, \eta^\prime\pi^0, and \omega\pi^0

The authors present measurements of branching fractions for five B-meson decays to two-body charmless final states. The data, collected with the BABAR detector at the Stanford Linear Accelerator Center, represent 459 million B{bar B} pairs. The results for branching fractions are, in units of 10{sup -6} (upper limits at 90% C.L.): {Beta}(B{sup +} {yields} {eta}{rho}{sup +}) = 9.9 {+-} 1.2 {+-} 0.8, {Beta}(B{sup 0} {yields} {eta}{prime}{eta}) = 0.5 {+-} 0.4 {+-} 0.1 (< 1.2), {Beta}(B{sup 0} {yields} {eta}{pi}{sup 0}) = 0.9 {+-} 0.4 {+-} 0.1 (< 1.5), {Beta}(B{sup 0} {yields} {eta}{prime}{pi}{sup 0}) = 0.9 {+-} 0.4 {+-} 0.1 (< 1.5), and {Beta}(B{sup 0}{sup 0} {yields} {omega}{pi}{sup 0}) = {eta}{rho}{sup +} mode, they measure the charge asymmetry {Alpha}{sub ch} (B{sup +} {yields} {eta}{rho}{sup +}) = 0.13 {+-} 0.11 {+-} 0.02.
Date: April 22, 2008
Creator: Aubert, Bernard; Bona, Marcella; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prencipe, E. et al.
Object Type: Article
System: The UNT Digital Library
Real-time Data Access Monitoring in Distributed, Multi-petabyte Systems (open access)

Real-time Data Access Monitoring in Distributed, Multi-petabyte Systems

Petascale systems are in existence today and will become common in the next few years. Such systems are inevitably very complex, highly distributed and heterogeneous. Monitoring a petascale system in real-time and understanding its status at any given moment without impacting its performance is a highly intricate task. Common approaches and off-the-shelf tools are either unusable, do not scale, or severely impact the performance of the monitored servers. This paper describes unobtrusive monitoring software developed at Stanford Linear Accelerator Center (SLAC) for a highly distributed petascale production data set. The paper describes the employed solutions, the lessons learned, the problems still to be addressed, and explains how the system can be reused elsewhere.
Date: April 22, 2008
Creator: Azemoon, Tofigh; Becla, Jacek, a=Hanushevsky, Andrew & Turri, Massimiliano
Object Type: Article
System: The UNT Digital Library
Dissipative Cryogenic Filters with Zero DC Resistance (open access)

Dissipative Cryogenic Filters with Zero DC Resistance

The authors designed, implemented and tested cryogenic RF filters with zero DC resistance, based on wires with a superconducting core inside a resistive sheath. The superconducting core allows low frequency currents to pass with negligible dissipation. Signals above the cutoff frequency are dissipated in the resistive part due to their small skin depth. The filters consist of twisted wire pairs shielded with copper tape. Above approximately 1 GHz, the attenuation is exponential in {radical}{omega}, as typical for skin depth based RF filters. By using additional capacitors of 10 nF per line, an attenuation of at least 45 dB above 10 MHz can be obtained. Thus, one single filter stage kept at mixing chamber temperature in a dilution refrigerator is sufficient to attenuate room temperature black body radiation to levels corresponding to 10 mK above about 10 MHz.
Date: April 22, 2008
Creator: Bluhm, Hendrik; Moler, Kathryn A. & /Stanford U., Appl. Phys. Dept
Object Type: Article
System: The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 116, No. 79, Ed. 1 Tuesday, April 22, 2008 (open access)

Perry Daily Journal (Perry, Okla.), Vol. 116, No. 79, Ed. 1 Tuesday, April 22, 2008

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: April 22, 2008
Creator: Brown, Gloria
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 109, No. 278, Ed. 1 Tuesday, April 22, 2008 (open access)

The Altus Times (Altus, Okla.), Vol. 109, No. 278, Ed. 1 Tuesday, April 22, 2008

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: April 22, 2008
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Boerne Star (Boerne, Tex.), Vol. 102, No. 33, Ed. 1 Tuesday, April 22, 2008 (open access)

The Boerne Star (Boerne, Tex.), Vol. 102, No. 33, Ed. 1 Tuesday, April 22, 2008

Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date: April 22, 2008
Creator: Cartwright, Brian
Object Type: Newspaper
System: The Portal to Texas History
From Loops to Trees By-passing Feynman's Theorem (open access)

From Loops to Trees By-passing Feynman's Theorem

We derive a duality relation between one-loop integrals and phase-space integrals emerging from them through single cuts. The duality relation is realized by a modification of the customary + i0 prescription of the Feynman propagators. The new prescription regularizing the propagators, which we write in a Lorentz covariant form, compensates for the absence of multiple cut contributions that appear in the Feynman Tree Theorem. The duality relation can be applied to generic one-loop quantities in any relativistic, local and unitary field theories. It is suitable for applications to the analytical calculation of one-loop scattering amplitudes, and to the numerical evaluation of cross-sections at next-to-leading order.
Date: April 22, 2008
Creator: Catani, Stefano; Gleisberg, Tanju; Krauss, Frank; Rodrigo, German & Winter, Jan-Christopher
Object Type: Report
System: The UNT Digital Library
High-Level Application Framework for LCLS (open access)

High-Level Application Framework for LCLS

A framework for high level accelerator application software is being developed for the Linac Coherent Light Source (LCLS). The framework is based on plug-in technology developed by an open source project, Eclipse. Many existing functionalities provided by Eclipse are available to high-level applications written within this framework. The framework also contains static data storage configuration and dynamic data connectivity. Because the framework is Eclipse-based, it is highly compatible with any other Eclipse plug-ins. The entire infrastructure of the software framework will be presented. Planned applications and plug-ins based on the framework are also presented.
Date: April 22, 2008
Creator: Chu, P; Chevtsov, S.; Fairley, D.; Larrieu, C.; Rock, J.; Rogind, D. et al.
Object Type: Article
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 88, No. 113, Ed. 1 Tuesday, April 22, 2008 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 88, No. 113, Ed. 1 Tuesday, April 22, 2008

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: April 22, 2008
Creator: Clements, Clifford E.
Object Type: Newspaper
System: The Portal to Texas History
Conduct of Operations Applicability Matrix for CMELS Light Science and Industry and General Industry Facilities at LLNL Site 200 (open access)

Conduct of Operations Applicability Matrix for CMELS Light Science and Industry and General Industry Facilities at LLNL Site 200

None
Date: April 22, 2008
Creator: Cooper, G A
Object Type: Report
System: The UNT Digital Library
Conduct of Operations Applicability Matrix for CMELS Low Hazard Facilities at LLNL Site 200 (open access)

Conduct of Operations Applicability Matrix for CMELS Low Hazard Facilities at LLNL Site 200

None
Date: April 22, 2008
Creator: Cooper, G A
Object Type: Report
System: The UNT Digital Library
The University News (Irving, Tex.), Vol. 38, No. 22, Ed. 1 Tuesday, April 22, 2008 (open access)

The University News (Irving, Tex.), Vol. 38, No. 22, Ed. 1 Tuesday, April 22, 2008

Weekly student newspaper from the University of Dallas in Irving, Texas that includes campus news and commentaries along with advertising.
Date: April 22, 2008
Creator: Crotty, Sarah
Object Type: Newspaper
System: The Portal to Texas History

Doctoral Recital: 2008-04-22 - Daniel Wyn Darrah, percussion

Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date: April 22, 2008
Creator: Darrah, Daniel Wyn
Object Type: Sound
System: The UNT Digital Library
Foreign Aid Reform: Issues for Congress and Policy Options (open access)

Foreign Aid Reform: Issues for Congress and Policy Options

This report discusses the role of foreign assistance as a tool of foreign policy. There is also a growing recognition of the role that foreign assistance can play as a foreign policy tool that is equal to the role of diplomacy and defense within the current international environment characterized by regional conflicts, terrorist threats, weapons proliferation, concerns with disease pandemics, and the difficulty in overcoming poverty.
Date: April 22, 2008
Creator: Epstein, Susan B. & Veillette, Connie
Object Type: Report
System: The UNT Digital Library
FY2008 Emergency Supplemental Appropriations for International Affairs (open access)

FY2008 Emergency Supplemental Appropriations for International Affairs

This report analyzes the international affairs portion of the request and tracks related legislative activity. The White House had submitted emergency supplemental requests to Congress for military operations in Iraq and Afghanistan, and international affairs programs totaling $196.5 billion
Date: April 22, 2008
Creator: Epstein, Susan B.; Margesson, Rhoda & Tarnoff, Curt
Object Type: Report
System: The UNT Digital Library
Information Resources in High-Energy Physics: Surveying the Present Landscape and Charting the Future Course (open access)

Information Resources in High-Energy Physics: Surveying the Present Landscape and Charting the Future Course

Access to previous results is of paramount importance in the scientific process. Recent progress in information management focuses on building e-infrastructures for the optimization of the research workflow, through both policy-driven and user-pulled dynamics. For decades, High-Energy Physics (HEP) has pioneered innovative solutions in the field of information management and dissemination. In light of a transforming information environment, it is important to assess the current usage of information resources by researchers and HEP provides a unique test-bed for this assessment. A survey of about 10% of practitioners in the field reveals usage trends and information needs. Community-based services, such as the pioneering arXiv and SPIRES systems, largely answer the need of the scientists, with a limited but increasing fraction of younger users relying on Google. Commercial services offered by publishers or database vendors are essentially unused in the field. The survey offers an insight into the most important features that users require to optimize their research workflow. These results inform the future evolution of information management in HEP and, as these researchers are traditionally 'early adopters' of innovation in scholarly communication, can inspire developments of disciplinary repositories serving other communities.
Date: April 22, 2008
Creator: Gentil-Beccot, Anne; Mele, Salvatore; Holtkamp, Annette; O'Connell, Heath B. & Brooks, Travis C.
Object Type: Article
System: The UNT Digital Library
Conduct of Operations Applicability Matrix for CMELS Moderate Hazard Facilities at LLNL Site 300 (open access)

Conduct of Operations Applicability Matrix for CMELS Moderate Hazard Facilities at LLNL Site 300

None
Date: April 22, 2008
Creator: Gregg, H R
Object Type: Report
System: The UNT Digital Library
Dispute Settlement in the World Trade Organization: An Overview (open access)

Dispute Settlement in the World Trade Organization: An Overview

This report provides an overview about the Dispute Settlement in the World Trade Organization (WTO).
Date: April 22, 2008
Creator: Grimmett, Jeanne J.
Object Type: Report
System: The UNT Digital Library
Two-dimensional Vortex Behavior in Highly Underdoped YBa_2Cu_3O_{6+x} Observed byScanning Hall Probe Microscopy (open access)

Two-dimensional Vortex Behavior in Highly Underdoped YBa_2Cu_3O_{6+x} Observed byScanning Hall Probe Microscopy

We report scanning Hall probe microscopy of highly underdoped superconducting YBa{sub 2}Cu{sub 3}O{sub 6+z} with T{sub c} ranging from 5 to 15 K which showed distinct flux bundles with less than one superconducting flux quantum ({Phi}{sub 0}) through the sample surface. The sub-{Phi}{sub 0} features occurred more frequently for lower T{sub c}, were more mobile than conventional vortices, and occurred more readily when the sample was cooled with an in-plane field component. We show that these features are consistent with kinked stacks of pancake vortices.
Date: April 22, 2008
Creator: Guikema, J.W.; Bluhm, Hendrik; /Stanford U., Appl. Phys. Dept.; Bonn, D.A.; Liang, Ruixing; Hardy, W.N. et al.
Object Type: Article
System: The UNT Digital Library
TEMPERATURE PREDICTION IN 3013 CONTAINERS IN K AREA MATERIAL STORAGE (KAMS) FACILITY USING REGRESSION METHODS (open access)

TEMPERATURE PREDICTION IN 3013 CONTAINERS IN K AREA MATERIAL STORAGE (KAMS) FACILITY USING REGRESSION METHODS

3013 containers are designed in accordance with the DOE-STD-3013-2004. These containers are qualified to store plutonium (Pu) bearing materials such as PuO2 for 50 years. DOT shipping packages such as the 9975 are used to store the 3013 containers in the K-Area Material Storage (KAMS) facility at Savannah River Site (SRS). DOE-STD-3013-2004 requires that a comprehensive surveillance program be set up to ensure that the 3013 container design parameters are not violated during the long term storage. To ensure structural integrity of the 3013 containers, thermal analyses using finite element models were performed to predict the contents and component temperatures for different but well defined parameters such as storage ambient temperature, PuO{sub 2} density, fill heights, weights, and thermal loading. Interpolation is normally used to calculate temperatures if the actual parameter values are different from the analyzed values. A statistical analysis technique using regression methods is proposed to develop simple polynomial relations to predict temperatures for the actual parameter values found in the containers. The analysis shows that regression analysis is a powerful tool to develop simple relations to assess component temperatures.
Date: April 22, 2008
Creator: Gupta, N
Object Type: Article
System: The UNT Digital Library
Rains County Leader (Emory, Tex.), Vol. 120, No. 45, Ed. 1 Tuesday, April 22, 2008 (open access)

Rains County Leader (Emory, Tex.), Vol. 120, No. 45, Ed. 1 Tuesday, April 22, 2008

Weekly newspaper from Emory, Texas that includes local, state, and national news along with advertising.
Date: April 22, 2008
Creator: Hill, Earl Clyde, Jr.
Object Type: Newspaper
System: The Portal to Texas History
Financing the U.S. Trade Deficit (open access)

Financing the U.S. Trade Deficit

None
Date: April 22, 2008
Creator: Jackson, James K.
Object Type: Report
System: The UNT Digital Library