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15th Street News (Midwest City, Okla.), Vol. 36, No. 22, Ed. 1 Friday, April 6, 2007 (open access)

15th Street News (Midwest City, Okla.), Vol. 36, No. 22, Ed. 1 Friday, April 6, 2007

Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date: April 6, 2007
Creator: Ray, Johnna
Object Type: Newspaper
System: The Gateway to Oklahoma History
Adam Walsh Child Protection and Safety Act: A Legal Analysis (open access)

Adam Walsh Child Protection and Safety Act: A Legal Analysis

This report summarizes and describes the history of the Adam Walsh Child Protection and Safety Act. Moreover, this report divides the act into four categories: a revised sex offender registration system, child and sex related amendments to federal criminal procedure, child protective grant programs, and punitive initiatives against sex offenders. The report examines each of these provisions of the bill to effectively summarize it, and gives the reader the information to find an available abridged version.
Date: April 6, 2007
Creator: Doyle, Charles
Object Type: Report
System: The UNT Digital Library
The Altus Times (Altus, Okla.), Vol. 108, No. 319, Ed. 1 Friday, April 6, 2007 (open access)

The Altus Times (Altus, Okla.), Vol. 108, No. 319, Ed. 1 Friday, April 6, 2007

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: April 6, 2007
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
B^0 to \pi^+ \pi^- \pi^0Time Dependent Dalitz Analysis at BaBar (open access)

B^0 to \pi^+ \pi^- \pi^0Time Dependent Dalitz Analysis at BaBar

The author presents here results of a time-dependent analysis of the Dalitz structure of neutral B meson decays to {pi}{sup +}{pi}{sup -}{pi}{sup 0} from a dataset of 346 million B{bar B} pairs collected at the {Upsilon}(4S) center of mass energy by the BaBar detector at the SLAC PEP-II e{sup +}e{sup -} accelerator. No significant CP violation effects are observed and 68% confidence interval is derived on the weak angle {alpha} to be [75,152].
Date: April 6, 2007
Creator: Cavoto, Gianluca
Object Type: Article
System: The UNT Digital Library
BaBar Status and Prospects for CP Asymmetry Measurements: Sin(2beta + gamma) (open access)

BaBar Status and Prospects for CP Asymmetry Measurements: Sin(2beta + gamma)

The recent experimental results on CP violation related to the angles of the Cabibbo-Kobayashi-Maskawa (CKM) unitarity triangle 2{beta} + {gamma} are summarized in these proceedings. These results are obtained with approximately 232 million {Upsilon}(4S) {yields} B{bar B} events collected with the BABAR detector at the PEP-II asymmetric-energy B-factory at SLAC. Using the measurements on time-dependent CP asymmetries in B{sup 0} {yields} D{sup (*){-+}} {pi}{sup {-+}} and B{sup 0} {yields} D{sup {-+}}{rho}{sup {+-}} decays and theoretical assumptions, one finds | sin(2{beta} + {gamma}) | > 0.64 (0.40) at 68% (90%) confidence level. The perspectives of sin(2{beta} + {gamma}) measurement with {bar B}{sup 0} {yields} D{sup (*)0} {bar K}{sup (*)0} and B{sup 0} {yields} D{sup (*){-+}}{alpha}{sub 0(2)}{sup {+-}} decay channels are also discussed.
Date: April 6, 2007
Creator: Ganzhur, Sergey
Object Type: Article
System: The UNT Digital Library
Bankruptcy Reform: Value of Credit Counseling Requirement Is Not Clear (open access)

Bankruptcy Reform: Value of Credit Counseling Requirement Is Not Clear

A letter report issued by the Government Accountability Office with an abstract that begins "The Bankruptcy Abuse Prevention and Consumer Protection Act of 2005 requires individuals to receive credit counseling before filing for bankruptcy and to take a debtor education course before having debts discharged. Concerns were raised that the new requirements could expose consumers to abusive practices by credit counseling agencies or become barriers to filing for bankruptcy. GAO was asked to examine (1) the process of approving counseling and education providers, (2) the content and results of the counseling and education sessions, (3) the fees charged, and (4) the availability of and challenges to accessing services. To address these issues, GAO reviewed Trustee Program data and application case files, and interviewed a wide range of individuals and groups involved in the bankruptcy process."
Date: April 6, 2007
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 86, No. 130, Ed. 1 Friday, April 6, 2007 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 86, No. 130, Ed. 1 Friday, April 6, 2007

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: April 6, 2007
Creator: Clements, Clifford E.
Object Type: Newspaper
System: The Portal to Texas History
Biomass-Derived Hydrogen from a Thermally Ballasted Gasifier (open access)

Biomass-Derived Hydrogen from a Thermally Ballasted Gasifier

The goal of this project is to develop an indirectly heated gasification system that converts switchgrass into hydrogen-rich gas suitable for powering fuel cells. The project includes investigations of the indirectly-heated gasifier, development of particulate removal equipment, evaluation of catalytic methods for upgrading producer gas, development of contaminant measurement and control techniques, modeling of the thermal performance of the ballasted gasifier, and estimation of the cost of hydrogen from the proposed gasification system. Specific technologies investigated include a thermally ballasted gasifier, a moving bed granular filter, and catalytic reactors for steam reforming and water-gas shift reaction. The approach to this project was to employ a pilot-scale (5 ton per day) gasifier to evaluate the thermally ballasted gasifier as a means for producing hydrogen from switchgrass. A slipstream from the gasifier was used to evaluate gas cleaning and upgrading options. Other tests were conducted with laboratory-scale equipment using simulated producer gas. The ballasted gasifier operated in conjunction with a steam reformer and two-stage water-gas shift reactor produced gas streams containing 54.5 vol-% H2. If purge gas to the feeder system could be substantially eliminated, hydrogen concentration would reach 61 vol-%, which closely approaches the theoretical maximum of 66 vol-%. Tests with …
Date: April 6, 2007
Creator: Brown, Robert C.
Object Type: Report
System: The UNT Digital Library
Boerne Star & Recorder (Boerne, Tex.), Vol. 101, No. 28, Ed. 1 Friday, April 6, 2007 (open access)

Boerne Star & Recorder (Boerne, Tex.), Vol. 101, No. 28, Ed. 1 Friday, April 6, 2007

Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date: April 6, 2007
Creator: Cartwright, Brian
Object Type: Newspaper
System: The Portal to Texas History
Borehole Gravity Meter Surveys at the Waste Treatment Plant, Hanford, Washington. (open access)

Borehole Gravity Meter Surveys at the Waste Treatment Plant, Hanford, Washington.

Microg-LaCoste (MGL) was contracted by Pacfic Northwest National Laboratories (PNNL) to record borehole gravity density data in 3 wells at the HanfordWaste Treatment Plant (WTP) site. The survey was designed to provide highly accurate density information for use in seismic modeling. The borehole gravity meter (BHGM) tool has a very large depth of investigation (hundreds of feet) compared to other density tools so it is not influenced by casing or near welbore effects, such as washouts.
Date: April 6, 2007
Creator: MacQueen, Jeffrey D. & Mann, Ethan
Object Type: Report
System: The UNT Digital Library
Clean Water Act and Total Maximum Daily Loads (TMDLs) of Pollutants (open access)

Clean Water Act and Total Maximum Daily Loads (TMDLs) of Pollutants

This report discusses the section 303(d) of the Clean Water Act, which requires states to identify waters that are impaired by pollution, even after application of pollution controls. For those waters, states must establish a total maximum daily load (TMDL) of pollutants to ensure that water quality standards can be attained. Implementation was dormant until states and EPA were prodded by lawsuits. The TMDL program has become controversial, in part because of requirements and costs now facing states to implement this 35-year-old provision of the law, as well as industries, cities, farmers, and others who may be required to use new pollution controls to meet TMDL requirements. In July 2000, EPA issued revisions to strengthen the program. The rule was widely criticized, and congressional interest was high. The 2000 rule did not go into effect, and in March 2003, EPA withdrew the rule to consider whether to issue an entirely new rule or other options; no timetable has been announced. Consequently, the program continues to operate under regulations issued in 1992.
Date: April 6, 2007
Creator: Copeland, Claudia
Object Type: Report
System: The UNT Digital Library
Clean Water Act Section 401: Background and Issues (open access)

Clean Water Act Section 401: Background and Issues

This report provides information about the Background and Issues on Clean Water Act Section 401. Section 401 of the clean water act requires that an applicant for a federal license or permit provide a certification that any discharges from the facility will comply with the act.
Date: April 6, 2007
Creator: Claudia, Copleland
Object Type: Report
System: The UNT Digital Library
Common Questions About Postage and Stamps (open access)

Common Questions About Postage and Stamps

Constituents and interest groups often approach congressional offices with questions about postage and stamps. This report provides brief answers to commonly asked questions and provides sources where congressional staff may learn more about these topics.
Date: April 6, 2007
Creator: Kosar, Kevin R.
Object Type: Report
System: The UNT Digital Library
Dallas Voice (Dallas, Tex.), Vol. 23, No. 47, Ed. 1 Friday, April 6, 2007 (open access)

Dallas Voice (Dallas, Tex.), Vol. 23, No. 47, Ed. 1 Friday, April 6, 2007

Weekly newspaper from Dallas, Texas that includes local, state, and national news and advertising of interest to the Lesbian, Gay, Bisexual, and Transgender (LGBT) community.
Date: April 6, 2007
Creator: Nash, Tammye
Object Type: Newspaper
System: The UNT Digital Library
Determination of the CKM Element V(Ub) (open access)

Determination of the CKM Element V(Ub)

The precise determination of the CKM matrix element |V{sub ub}| is crucial in testing the Standard Model mechanism for CP violation. From a sample of 88 million B{bar B} pairs collected with the BABAR detector, charmless semileptonic B decays are selected using simultaneous requirements on the electron energy, E{sub e}, and the invariant mass squared of the electron-neutrino pair, q{sup 2}. The partial branching fraction, unfolded for detector effects, is determined in a region of the q{sup 2}-E{sub e} plane where the dominating semileptonic decays to charm mesons are highly suppressed. Theoretical calculations based on the Heavy Quark Expanion allows for a determination of |V{sub ub}| = (3.95 {+-} 0.27{sub -0.42}{sup +0.58} {+-} 0.25) x 10{sup -3}, where the errors represent experimental, heavy quark parameters and theoretical uncertainties, respectively.
Date: April 6, 2007
Creator: Fortin, Dominique
Object Type: Report
System: The UNT Digital Library
The Determination of the Helicity of W' Boson Coupling at the LHC (open access)

The Determination of the Helicity of W' Boson Coupling at the LHC

Apart from its mass and width, the most important property of a new charged gauge boson, W{prime}, is the helicity of its couplings to the SM fermions. Such particles are expected to exist in many extensions of the Standard Model. In this paper we explore the capability of the LHC to determine the W{prime} coupling helicity at low integrated luminosities in the {ell} + E{sub T}{sup miss} discovery channel. We find that measurements of the transverse mass distribution, reconstructed from this final state in the W-W{prime} interference region, provides the best determination of this quantity. To make such measurements requires integrated luminosities of {approx} 10(60) fb{sup -1} assuming M{sub W{prime}} = 1.5(2.5) TeV and provided that the W{prime} couplings have Standard Model magnitude. This helicity determination can be further strengthened by the use of various discovery channel leptonic asymmetries, also measured in the same interference regime, but with higher integrated luminosities.
Date: April 6, 2007
Creator: Rizzo, Thomas G.
Object Type: Article
System: The UNT Digital Library
Discovery of Non-random Spatial Distribution of Impacts in the Stardust Cometary Collector (open access)

Discovery of Non-random Spatial Distribution of Impacts in the Stardust Cometary Collector

We report the discovery that impacts in the Stardust cometary collector are not distributed randomly in the collecting media, but appear to be clustered on scales smaller than {approx} 10 cm. We also report the discovery of at least two populations of oblique tracks. We evaluated several hypotheses that could explain the observations. No hypothesis was consistent with all the observations, but the preponderance of evidence points toward at least one impact on the central Whipple shield of the spacecraft as the origin of both clustering and low-angle oblique tracks. High-angle oblique tracks unambiguously originate from a non-cometary impact on the spacecraft bus just forward of the collector.
Date: April 6, 2007
Creator: Westphal, A. J.; Bastien, R. K.; Borg, J.; Bridges, J.; Brownlee, D. E.; Burchell, M. J. et al.
Object Type: Article
System: The UNT Digital Library
Dynamical Symmetries Reflected in Realistic Interactions (open access)

Dynamical Symmetries Reflected in Realistic Interactions

Realistic nucleon-nucleon (NN) interactions, derived within the framework of meson theory or more recently in terms of chiral effective field theory, yield new possibilities for achieving a unified microscopic description of atomic nuclei. Based on spectral distribution methods, a comparison of these interactions to a most general Sp(4) dynamically symmetric interaction, which previously we found to reproduce well that part of the interaction that is responsible for shaping pairing-governed isobaric analog 0{sup +} states, can determine the extent to which this significantly simpler model Hamiltonian can be used to obtain an approximate, yet very good description of low-lying nuclear structure. And furthermore, one can apply this model in situations that would otherwise be prohibitive because of the size of the model space. In addition, we introduce a Sp(4) symmetry breaking term by including the quadrupole-quadrupole interaction in the analysis and examining the capacity of this extended model interaction to imitate realistic interactions. This provides a further step towards gaining a better understanding of the underlying foundation of realistic interactions and their ability to reproduce striking features of nuclei such as strong pairing correlations or collective rotational motion.
Date: April 6, 2007
Creator: Sviratcheva, K. D.; Draayer, J. P. & Vary, J. P.
Object Type: Article
System: The UNT Digital Library
Effects of Cosmic Infrared Background on High Energy Delayed Gamma-Rays From Gamma-Ray Bursts (open access)

Effects of Cosmic Infrared Background on High Energy Delayed Gamma-Rays From Gamma-Ray Bursts

Regenerated high energy emissions from gamma-ray bursts (GRBs) are studied in detail. If the primary emission spectrum extends to TeV range, these very high energy photons will be absorbed by the cosmic infrared background (CIB). The created high energy electron-positron pairs up-scatter not only cosmic microwave background (CMB) photons but also CIB photons, and secondary photons are generated in the GeV-TeV range. These secondary delayed photons may be observed in the near future, and useful for a consistency check for the primary spectra and GRB physical parameters. The up-scattered CIB photons cannot be neglected for low redshift bursts and/or GRBs with a relatively low maximum photon energy. The secondary gamma-rays also give us additional information on the CIB, which is uncertain in observations so far.
Date: April 6, 2007
Creator: Murase, Kohta; /Kyoto U., Yukawa Inst., Kyoto; Asano, Katsuaki; Japan, /Natl. Astron. Observ. of; Nagataki, Shigehiro & /Kyoto U., Yukawa Inst., Kyoto /KIPAC, Menlo Park
Object Type: Article
System: The UNT Digital Library
Efficient Analysis of Live and Historical Streaming Data and itsApplication to Cybersecurity (open access)

Efficient Analysis of Live and Historical Streaming Data and itsApplication to Cybersecurity

Applications that query data streams in order to identifytrends, patterns, or anomalies can often benefit from comparing the livestream data with archived historical stream data. However, searching thishistorical data in real time has been considered so far to beprohibitively expensive. One of the main bottlenecks is the update costsof the indices over the archived data. In this paper, we address thisproblem by using our highly-efficient bitmap indexing technology (calledFastBit) and demonstrate that the index update operations aresufficiently efficient for this bottleneck to be removed. We describe ourprototype system based on the TelegraphCQ streaming query processor andthe FastBit bitmap index. We present a detailed performance evaluation ofour system using a complex query workload for analyzing real networktraffic data. The combined system uses TelegraphCQ to analyze streams oftraffic information and FastBit to correlate current behaviors withhistorical trends. We demonstrate that our system can simultaneouslyanalyze (1) live streams with high data rates and (2) a large repositoryof historical stream data.
Date: April 6, 2007
Creator: Reiss, Frederick; Stockinger, Kurt; Wu, Kesheng; Shoshani, Arie & Hellerstein, Joseph M.
Object Type: Article
System: The UNT Digital Library
Enemy Combatant Detainees: Habeas Corpus Challenges in Federal Court (open access)

Enemy Combatant Detainees: Habeas Corpus Challenges in Federal Court

None
Date: April 6, 2007
Creator: Elsea, Jennifer K. & Thomas, Kenneth R.
Object Type: Report
System: The UNT Digital Library
Energy Calibration of the BaBar EMC Using the Pi0 Invariant Mass Method (open access)

Energy Calibration of the BaBar EMC Using the Pi0 Invariant Mass Method

The BaBar electromagnetic calorimeter energy calibration method was compared with the local and global peak iteration procedures, of Crystal Barrel and CLEO-II. An investigation was made of the possibility of {Upsilon}(4S) background reduction which could lead to increased statistics over a shorter time interval, for efficient calibration runs. The BaBar software package was used with unreconstructed data to study the energy response of the calorimeter, by utilizing the {pi}{sup 0} mass constraint on pairs of photon clusters.
Date: April 6, 2007
Creator: Tanner, David J.
Object Type: Report
System: The UNT Digital Library
EVALUATION OF THE FAILURE OF A RADIOACTIVE WASTE TRANSFER LINE JACKET (open access)

EVALUATION OF THE FAILURE OF A RADIOACTIVE WASTE TRANSFER LINE JACKET

Radioactive wastes are confined in 49 underground storage tanks at the Savannah River Site. The waste is transported between tanks primarily via an underground transfer piping system. Due to the hazardous nature of the waste, the inner core stainless steel pipe is typically surrounded by a carbon steel pipe jacket, which provides secondary containment. Recently several through-wall penetrations were discovered on a segment of one of the jackets. An evaluation was performed to verify the failure mechanism and to estimate the degree of damage that occurred to the pipe segment. Failure analysis of a section of the jacket confirmed that pitting corrosion on the exterior of the pipe led to the through-wall penetration. Ultrasonic measurements on sections of the pipe were utilized to determine the remaining wall thickness in adjacent areas of the pipe. Based on these measurements, the degree of pitting and general corrosion was determined. Pit growth rate models were then developed to estimate the life expectancy of sections of the pipe that had not been excavated. The calculations estimated that the occurrence of through-wall failures in this jacket will begin to increase substantially in 12 years. Given that this pipe segment will be utilized beyond this time, …
Date: April 6, 2007
Creator: Wiersma, B; Alan03 Plummer, A; Karthik Subramanian, K; Charles Jenkins, C; William Hinz, W & A Fellinger, A
Object Type: Article
System: The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Friday, April 6, 2007 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Friday, April 6, 2007

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: April 6, 2007
Creator: Bush, Kent
Object Type: Newspaper
System: The Gateway to Oklahoma History