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The Baytown Sun (Baytown, Tex.), Vol. 86, No. 348, Ed. 1 Wednesday, November 14, 2007
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
November 14, 2007
Creator:
Clements, Clifford E.
Object Type:
Newspaper
System:
The Portal to Texas History
Capitol Visitor Center: Update on Status of Project's Schedule and Cost as of October 31, 2007
Testimony issued by the Government Accountability Office with an abstract that begins "Today's testimony will focus on (1) the Architect of the Capitol's (AOC) construction progress since the last CVC hearing on September 25, 2007, and (2) the project's expected cost at completion and funding status. Today's remarks are based on our review of schedules and financial reports for the CVC project and related records maintained by AOC and its construction management contractor, Gilbane Building Company; our observations on the progress of work at the CVC construction site; and our discussions with the CVC team (AOC and its major CVC contractors), AOC's Chief Fire Marshal, and representatives from the U.S. Capitol Police. We also reviewed AOC's construction management contractor's periodic schedule assessments, potential change order log, and weekly reports on construction progress. In addition, we reviewed the contract modifications made to date."
Date:
November 14, 2007
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Cherokeean Herald (Rusk, Tex.), Vol. 158, No. 38, Ed. 1 Wednesday, November 14, 2007
Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date:
November 14, 2007
Creator:
Whitehead, Marie
Object Type:
Newspaper
System:
The Portal to Texas History
The Clifton Record (Clifton, Tex.), Vol. 112, No. 46, Ed. 1 Wednesday, November 14, 2007
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
November 14, 2007
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
The Collegian (Hurst, Tex.), Vol. 20, No. 11, Ed. 1 Wednesday, November 14, 2007
Weekly student newspaper published in Hurst, Texas serving the Tarrant County College District that includes school news and information along with advertising.
Date:
November 14, 2007
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Colony Courier-Leader (The Colony, Tex.), Vol. 26, No. 41, Ed. 1 Wednesday, November 14, 2007
Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date:
November 14, 2007
Creator:
Monk, Devin
Object Type:
Newspaper
System:
The Portal to Texas History
Direct Observation of Cosmic Strings Via Their Strong Gravitational Lensing Effect. 1. Predictions for High Resolution Imaging Surveys
We use current theoretical estimates for the density of long cosmic strings to predict the number of strong gravitational lensing events in astronomical imaging surveys as a function of angular resolution and survey area. We show that angular resolution is the single most important factor, and that interesting limits on the dimensionless string tension G{mu}/c{sup 2} can be obtained by existing and planned surveys. At the resolution of the Hubble Space Telescope (0'.14), it is sufficient to survey of order a square degree -- well within reach of the current HST archive -- to probe the regime G{mu}/c{sup 2} {approx} 10{sup -8}. If lensing by cosmic strings is not detected, such a survey would improve the limit on the string tension by an order of magnitude on that available from the cosmic microwave background. At the resolution (0'.028) attainable with the next generation of large ground based instruments, both in the radio and the infra-red with adaptive optics, surveying a sky area of order ten square degrees will allow us to probe the G{mu}/c{sup 2} {approx} 10{sup -9} regime. These limits will not be improved significantly by increasing the solid angle of the survey.
Date:
November 14, 2007
Creator:
Gasparini, Maria Alice; Marshall, Phil; Treu, Tommaso; /UC, Santa Barbara; Morganson, Eric; /KIPAC, Menlo Park et al.
Object Type:
Article
System:
The UNT Digital Library
Discovery of a Jupiter/Saturn Analog With Gravitational Microlensing
Searches for extrasolar planets have uncovered an astonishing diversity of planetary systems, yet the frequency of solar system analogs remains unknown. The gravitational microlensing planet search method is potentially sensitive to multiple-planet systems containing analogs of all the solar system planets except Mercury. We report the first detection of a multiple-planet system with microlensing. We identify two planets with masses of {approx} 0.71 and {approx} 0.27 times the mass of Jupiter and orbital separations of {approx} 2.3 and {approx} 4.6 astronomical units orbiting a primary of mass {approx} 0.50 solar masses. This system resembles a scaled version of our solar system in that the mass ratio, separation ratio, and equilibrium temperatures of the planets are similar to those of Jupiter and Saturn. These planets could not have been detected with other techniques; their discovery from only 6 confirmed microlensing planet detections suggests that solar system analogs may be common.
Date:
November 14, 2007
Creator:
Gaudi, B. S.; Bennett, D. P.; Udalski, A.; Gould, A.; Christie, G. W.; Maoz, D. et al.
Object Type:
Article
System:
The UNT Digital Library
District of Columbia Representation: Effect on House Apportionment
This report shows the distribution of House seats based on the 2000 census for 435 seats and for 437 seats as specified in the proposal. The report also examines the impact of using the 2006 estimated population to allocate the 437 seats, including the single seat provided to the District.
Date:
November 14, 2007
Creator:
Crocker, Royce
Object Type:
Report
System:
The UNT Digital Library
ELECTROCHEMICAL CORROSION TESTS FOR TANK 241-AY-101 CORE 325 SEGMENTS 16R1 & 16R2
The interstitial liquid in the double-shell tank 241-AY-101 settled solids layer is below the hydroxide chemistry control limit required by HNF-SD-WM-TSR-006, Tank Farms Technical Safety Requirements, Administrative Control 5.16, 'Corrosion Mitigation Controls'. Operating tanks outside of the specification may increase the propensity corrosion of the carbon steel wall. This report is concerned with generalized electrochemical corrosion mechanism that may occur at specific loci. All cyclic potentiodynamic polarization scans exhibited a negative hysteresis, scan reversing at lower current density, indicating that there was no pitting propensity. The general electrochemical corrosion rates ranged from 4.4E-02 to 1.5E-03 mpy with the first round of coupons, while the second round yielded corrosion rates of 2.5E-03 to 2.9E-02 mpy.
Date:
November 14, 2007
Creator:
JB, DUNCAN & RB, WYRWAS
Object Type:
Report
System:
The UNT Digital Library
Electron Cloud Generation And Trapping in a Quadrupole Magnet at the Los Alamos PSR
A diagnostic to measure electron cloud formation and trapping in a quadrupole magnet has been developed, installed, and successfully tested at PSR. Beam studies with this diagnostic show that the electron flux striking the wall in the quadrupole is comparable to or larger than in an adjacent drift. In addition, the trapped electron signal, obtained using the sweeping feature of diagnostic, was larger than expected and decayed very slowly with an exponential time constant of 50 to 100 {micro}s. Experimental results were also obtained which suggest that a significant fraction of the electrons observed in the adjacent drift space were seeded by electrons ejected from the quadrupole.
Date:
November 14, 2007
Creator:
Macek, R. J.; Browman, A. A.; Ledford, J. E.; Borden, M. J.; O'Hara, J. F.; McCrady, R. C. et al.
Object Type:
Article
System:
The UNT Digital Library
EXAMPLE OF A RISK BASED DISPOSAL APPROVAL SOLIDIFICATION OF HANFORD SITE TRANSURANIC (TRU) WASTE
The Hanford Site requested, and the U.S. Environmental Protection Agency (EPA) Region 10 approved, a Toxic Substances Control Act of 1976 (TSCA) risk-based disposal approval (RBDA) for solidifying approximately four cubic meters of waste from a specific area of one of the K East Basin: the North Loadout Pit (NLOP). The NLOP waste is a highly radioactive sludge that contained polychlorinated biphenyls (PCBs) regulated under TSCA. The prescribed disposal method for liquid PCB waste under TSCA regulations is either thermal treatment or decontamination. Due to the radioactive nature of the waste, however, neither thermal treatment nor decontamination was a viable option. As a result, the proposed treatment consisted of solidifying the material to comply with waste acceptance criteria at the Waste Isolation Pilot Plant (WPP) in Carlsbad, New Mexico, or possibly the Environmental Restoration Disposal Facility at the Hanford Site, depending on the resulting transuranic (TRU) content of the stabilized waste. The RBDA evaluated environmental risks associated with potential airborne PCBs. In addition, the RBDA made use of waste management controls already in place at the treatment unit. The treatment unit, the T Plant Complex, is a Resource Conservation and Recovery Act of 1976 (RCRA)-permitted facility used for storing and …
Date:
November 14, 2007
Creator:
AL, PRIGNANO
Object Type:
Article
System:
The UNT Digital Library
Experiments to Understand HPC Time to Development (Final report for Department of Energy contract DE-FG02-04ER25633) Report DOE/ER/25633-1
In order to understand how high performance computing (HPC) programs are developed, a series of experiments, using students in graduate level HPC classes and various research centers, were conducted at various locations in the US. In this report, we discuss this research, give some of the early results of those experiments, and describe a web-based Experiment Manager we are developing that allows us to run studies more easily and consistently at universities and laboratories, allowing us to generate results that more accurately reflect the process of building HPC programs.
Date:
November 14, 2007
Creator:
Basili, Victor, R. & Zelkowitz, Marvin, V.
Object Type:
Report
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Wednesday, November 14, 2007
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 14, 2007
Creator:
Wilson, Chris
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Federal Programs Available to Unemployed Workers
This report presents information on federal programs targeted to unemployed workers specifically, but does not attempt to discuss means-tested programs.
Date:
November 14, 2007
Creator:
Whittaker, Julie M. & Naughton, Blake Alan
Object Type:
Report
System:
The UNT Digital Library
Final-State Interactions and Single-Spin Asymmetries in Semi-inclusive Deep Inelastic Scattering
Recent measurements from the HERMES and SMC collaborations show a remarkably large azimuthal single-spin asymmetries A{sub UL} and A{sub UT} of the proton in semi-inclusive pion leptoproduction {gamma}*(q)p {yields} {pi}X. We show that final-state interactions from gluon exchange between the outgoing quark and the target spectator system leads to single-spin asymmetries in deep inelastic lepton-proton scattering at leading twist in perturbative QCD; i.e., the rescattering corrections are not power-law suppressed at large photon virtuality q{sup 2} at fixed x{sub bj}. The existence of such single-spin asymmetries requires a phase difference between two amplitudes coupling the proton target with J{sup z}{sub p} = {+-}1/2 to the same final-state, the same amplitudes which are necessary to produce a nonzero proton anomalous magnetic moment. We show that the exchange of gauge particles between the outgoing quark and the proton spectators produces a Coulomb-like complex phase which depends on the angular momentum L{sup z} of the proton's constituents and thus is distinct for different proton spin amplitudes. The single-spin asymmetry which arises from such final-state interactions does not factorize into a product of structure function and fragmentation function, and it is not related to the transversity distribution {delta}q(x;Q) which correlates transversely polarized quarks with …
Date:
November 14, 2007
Creator:
Brodsky, Stanley J.; Hwang, Dae Sung & Schmidt, Ivan
Object Type:
Article
System:
The UNT Digital Library
The Greensheet (Dallas, Tex.), Vol. 31, No. 218, Ed. 1 Wednesday, November 14, 2007
Free weekly newspaper that includes business and classified advertising.
Date:
November 14, 2007
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 38, No. 484, Ed. 1 Wednesday, November 14, 2007
Free weekly newspaper that includes business and classified advertising.
Date:
November 14, 2007
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 38, No. 485, Ed. 1 Wednesday, November 14, 2007
Free weekly newspaper that includes business and classified advertising.
Date:
November 14, 2007
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 38, No. 486, Ed. 1 Wednesday, November 14, 2007
Free weekly newspaper that includes business and classified advertising.
Date:
November 14, 2007
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
[Group holding materials at MC event]
A photograph of a group of students sitting and standing together during an event hosted by the UNT Multicultural Center on campus. They are each holding something flat and small glass awards.
Date:
November 14, 2007
Creator:
University of North Texas. Multicultural Center.
Object Type:
Photograph
System:
The UNT Digital Library
HESS J1023-575: Non-Thermal Particle Acceleration Associated With the Young Stellar Cluster Westerlund 2
The results from H.E.S.S. observations towards Westerlund 2 are presented. The detection of very-high-energy gamma-ray emission towards the young stellar cluster Westerlund 2 in the HII complex RCW49 by H.E.S.S. provides ample evidence that particle acceleration to extreme energies is associated with this region. A variety of possible emission scenarios is mentioned, ranging from high-energy gamma-ray production in the colliding wind zone of the massive Wolf-Rayet binary WR 20a, collective wind scenarios, diffusive shock acceleration at the boundaries of wind-blown bubbles in the stellar cluster, and outbreak phenomena from hot stellar winds into the interstellar medium. These scenarios are briefly compared to the characteristics of the associated new VHE gamma-ray source HESS J1023-575, and conclusions on the validity of the respective emission scenarios for high-energy gamma-ray production in the Westerlund 2 system are drawn.
Date:
November 14, 2007
Creator:
Reimer, O.; /Stanford U., HEPL /KIPAC, Menlo Park; Hinton, J.; U., /Leeds; Hofmann, W.; Hoppe, S. et al.
Object Type:
Article
System:
The UNT Digital Library
IMPROVEMENTS IN CONTAINER MANAGEMENT OF TRANSURANIC (TRU) AND LOW LEVEL RADIOACTIVE WASTE STORED AT THE CENTRAL WASTE COMPLEX (CWC) AT HANFORD
The Central Waste Complex (CWC) is the interim storage facility for Resource Conservation & Recovery Act (RCRA) mixed waste, transuranic waste, transuranic mixed waste, low-level and low-level mixed radioactive waste at the Department of Energy's (DOE'S) Hanford Site. The majority of the waste stored at the facility is retrieved from the low-level burial grounds in the 200 West Area at the Site, with minor quantities of newly generated waste from on-site and off-site waste generators. The CWC comprises 18 storage buildings that house 13,000 containers. Each waste container within the facility is scanned into its location by building, module, tier and position and the information is stored in a site-wide database. As waste is retrieved from the burial grounds, a preliminary non-destructive assay is performed to determine if the waste is transuranic (TRU) or low-level waste (LLW) and subsequently shipped to the CWC. In general, the TRU and LLW waste containers are stored in separate locations within the CWC, but the final disposition of each waste container is not known upon receipt. The final disposition of each waste container is determined by the appropriate program as process knowledge is applied and characterization data becomes available. Waste containers are stored within …
Date:
November 14, 2007
Creator:
Uytioco, E. M.
Object Type:
Article
System:
The UNT Digital Library
In –Situ Spectroscopic Investigation of Immobilized Organometallic Catalysts
Immobilized organometallic catalysts, in principle, can give high rates and selectivities like homogeneous catalysts with the ease of separation enjoyed by heterogeneous catalysts. However, the science of immobilized organometallics has not been developed because the field lies at the interface between the homogeneous and heterogeneous catalysis communities. By assembling an interdisciplinary research team that can probe all aspects of immobilized organometallic catalyst design, the entire reacting system can be considered, where the transition metal complex, the complex-support interface and the properties of the support can all be considered simultaneously from both experimental and theoretical points of view. Researchers at Georgia Tech and the University of Virginia are studying the fundamental principles that can be used to understand and design future classes of immobilized organometallic catalysts. In the framework of the overall collaborative project with Georgia Tech, our work focused on (a) the X-ray absorption spectroscopy of an immobilized Pd-SCS-O complex (b) the mode of metal leaching from supported Pd catalysts during Heck catalysis and (c) the mode of deactivation of Jacobsen’s Co-salen catalysts during the hydrolytic kinetic resolution of terminal epoxides. Catalysts containing supported Pd pincer complexes, functionalized supports containing mercapto and amine groups, and oligomeric Co-salen catalysts were synthesized …
Date:
November 14, 2007
Creator:
Davis, Robert, J.
Object Type:
Report
System:
The UNT Digital Library