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The Baytown Sun (Baytown, Tex.), Vol. 82, No. 98, Ed. 1 Tuesday, March 9, 2004
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
March 9, 2004
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
Bioorganometallic chemistry: biocatalytic oxidation reactions with biomimetic nad+/nadh co-factors and [cp*rh(bpy)h]+ for selective organic synthesis
The biocatalytic, regioselective hydroxylation of 2-hydroxybiphenyl to the corresponding catechol was accomplished utilizing the monooxygenase 2-hydroxybiphenyl 3-monooxygenase (HbpA). The necessary natural nicotinamide adenine dinucleotide (NAD{sup +}) co-factor for this biocatalytic process was replaced by a biomimetic co-factor, N-benzylnicotinamide bromide, 1a. The interaction between the flavin (FAD) containing HbpA enzyme and the corresponding biomimetic NADH compound, N-benzyl-1,4-dihdronicotinamide, 1b, for hydride transfers, was shown to readily occur. The in situ recycling of the reduced NADH biomimic 1b from 1a was accomplished with [Cp*Rh(bpy)H](Cl); however, productive coupling of this regeneration reaction to the enzymatic hydroxylation reaction was not totally successful, due to a deactivation process concerning the HbpA enzyme peripheral groups; i.e., -SH or -NH{sub 2} possibly reacting with the precatalyst, [Cp*Rh(bpy)(H{sub 2}O)](Cl){sub 2}, and thus inhibiting the co-factor regeneration process. The deactivation mechanism was studied, and a promising strategy of derivatizing these peripheral -SH or -NH{sub 2} groups with a polymer containing epoxide was successful in circumventing the undesired interaction between HbpA and the precatalyst. This latter strategy allowed tandem co-factor regeneration using 1a or 2a, [Cp*Rh(bpy)(H2O)](Cl){sub 2}, and formate ion, in conjunction with the polymer bound, FAD containing HbpA enzyme to provide the catechol product.
Date:
March 9, 2004
Creator:
Lutz, Jochen; Hollman, Frank; Ho, The Vinh; Schnyder, Adrian; Fish, Richard H. & Schmid, Andreas
Object Type:
Article
System:
The UNT Digital Library
The Boerne Star (Boerne, Tex.), Vol. 98, No. 20, Ed. 1 Tuesday, March 9, 2004
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
March 9, 2004
Creator:
Cartwright, Brian & Morgan, Clay
Object Type:
Newspaper
System:
The Portal to Texas History
Brady Standard-Herald and Heart O' Texas News (Brady, Tex.), Ed. 1 Tuesday, March 9, 2004
Semiweekly newspaper from Brady, Texas that includes local, state, and national news along with advertising.
Date:
March 9, 2004
Creator:
Stewart, James E.
Object Type:
Newspaper
System:
The Portal to Texas History
Contract Management: Coast Guard's Deepwater Program Needs Increased Attention to Management and Contractor Oversight
A letter report issued by the General Accounting Office with an abstract that begins "The Coast Guard's Deepwater program, the largest acquisition program in its history, involves modernizing or replacing ships, aircraft, and communications equipment. The Coast Guard awarded the Deepwater contract to Integrated Coast Guard Systems (ICGS) in June 2002. The Coast Guard estimates the program will cost $17 billion over a 30-year period. ICGS is a system integrator, with responsibility for identifying and delivering an integrated system of assets to meet the Coast Guard's missions. GAO was asked to assess whether the Coast Guard is effectively managing the Deepwater program and overseeing the contractor and to assess the implications of using the Deepwater contracting model on opportunities for competition."
Date:
March 9, 2004
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
"Countrypolitan" charm and true grit
News release promoting the use of the Trinity Railway Express to visit Fort Worth travel destinations that are a part of DART's "destination deals" program, which offers discounts with the presentation of a valid DART, T, or TRE ticket or pass.
Date:
March 9, 2004
Creator:
Lyons, Morgan
Object Type:
Text
System:
The Portal to Texas History
A Cryogenic test stand for LHC quadrupole magnets
A new test stand for testing LHC interaction region (IR) quadrupole magnets at the Fermilab Magnet Test Facility has been designed and operated. The test stand uses a double bath system with a lambda plate to provide the magnet with a stagnant bath of pressurized He II at 1.9 K and 0.13 MPa. A cryostated magnet 0.91 m in diameter and up to 13 m in length can be accommodated. This paper describes the system design and operation. Issues related to both 4.5 K and 1.9 K operations and magnet quenching are highlighted. An overview of the data acquisition and cryogenics controls systems is also included.
Date:
March 9, 2004
Creator:
al., R. J. Rabehl et
Object Type:
Article
System:
The UNT Digital Library
The E-Rate Program: Universal Service Fund Telecommunications Discounts for Schools
This report provides background information on the E-rate program, focusing specifically on its support of schools. It will be revised to reflect any substantive changes in the program.
Date:
March 9, 2004
Creator:
Jackson, Charmaine
Object Type:
Report
System:
The UNT Digital Library
Effect of emittance and rms phase error on angular flux density and pinhole flux-a simulation study of two undulators at 10.5 mm gap including very high harmonics.
There is a trade-off between how much effort should go into the tuning of insertion devices to reduce their rms phase errors and the actual benefits achieved in spectral quality when the real APS beam emittance and beam energy spread are taken into account. In the magnetic measurement laboratory, the measured magnetic fields are analyzed in terms of the rms phase error and the angular flux density, which is calculated from the measured fields for an ideal electron beam, i.e., a zero-emittance beam. In this study, we go beyond the case of an ideal beam to study the effect of the APS beam emittance and beam energy spread on the angular flux density and the pinhole flux (for a typical pinhole size that covers most of the central cone of the radiation) for real-field insertion devices to get an estimate of how low an rms phase error is reasonable to attain. The results presented here are directly applicable to the APS ''canted'' undulators of type A (planar permanent-magnet hybrid insertion devices 2.1 m long and 3.3 cm period length) but also to the standard undulators A (which have a similar design with the same period length but are 0.3 m …
Date:
March 9, 2004
Creator:
Dejus, R.
Object Type:
Report
System:
The UNT Digital Library
Encanto y verdadero espÃritu "countrypolitan"
News release promoting the use of the Trinity Railway Express to visit Fort Worth travel destinations that are a part of DART's "destination deals" program, which offers discounts with the presentation of a valid DART, T, or TRE ticket or pass.
Date:
March 9, 2004
Creator:
Lyons, Morgan
Object Type:
Text
System:
The Portal to Texas History
Ensemble: 2004-03-09 – Canticum Novum, Concert Choir, and A Cappella Choir
Access:
Use of this item is restricted to the UNT Community
Concert performed at UNT Murchison Performing Arts Center, Winspear Performance Hall on March 9, 2004 at 8:00 pm.
Date:
March 9, 2004
Creator:
University of North Texas. Canticum Novum.
Object Type:
Sound
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, March 9, 2004
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
March 9, 2004
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Financial Audit: Senate Restaurants Revolving Fund for Fiscal Years 2003 and 2002
A letter report issued by the General Accounting Office with an abstract that begins "GAO contracted with Clifton Gunderson LLP to audit the financial statements of the Senate Restaurants Revolving Fund for fiscal years 2003 and 2002. Clifton Gunderson LLP found that (1) the financial statements were presented fairly, in all material respects, in conformity with U.S. generally accepted accounting principles; (2) the Fund maintained effective internal control over financial reporting (including safeguarding assets) and compliance with laws and regulations; and (3) there was no reportable noncompliance with selected provisions of laws and regulations it tested."
Date:
March 9, 2004
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
First upper limits from LIGO on gravitational wave bursts
We report on a search for gravitational wave bursts using data from the first science run of the LIGO detectors. Our search focuses on bursts with durations ranging from 4 ms to 100 ms, and with significant power in the LIGO sensitivity band of 150 to 3000 Hz. We bound the rate for such detected bursts at less than 1.6 events per day at 90% confidence level. This result is interpreted in terms of the detection efficiency for ad hoc waveforms (Gaussians and sine-Gaussians) as a function of their root-sum-square strain h{sub rss}; typical sensitivities lie in the range h{sub rss} {approx} 10{sup -19} - 10{sup -17} strain/{radical}Hz, depending on waveform. We discuss improvements in the search method that will be applied to future science data from LIGO and other gravitational wave detectors.
Date:
March 9, 2004
Creator:
al., B. Abbott et
Object Type:
Article
System:
The UNT Digital Library
Gas Analysis of Geothermal Fluid Inclusions: A New Technology For Geothermal Exploration
To increase our knowledge of gaseous species in geothermal systems by fluid inclusion analysis in order to facilitate the use of gas analysis in geothermal exploration. The knowledge of gained by this program can be applied to geothermal exploration, which may expand geothermal production. Knowledge of the gas contents in reservoir fluids can be applied to fluid inclusion gas analysis of drill chip cuttings in a similar fashion as used in the petroleum industry. Thus the results of this project may lower exploration costs both in the initial phase and lower drill hole completion costs. Commercial costs for fluid inclusion analysis done on at 20 feet intervals on chip samples for 10,000 ft oil wells is about $6,000, and the turn around time is a few weeks.
Date:
March 9, 2004
Creator:
Norman, David I. & Moore, Joseph
Object Type:
Report
System:
The UNT Digital Library
["Gay and Republican, But Not Necessarily Disloyal to President" article, March 9, 2004]
An article written by David D. Kirkpatrick for the New York Times about President George W. Bush's recent move against gay marriage and the responses from several gay and lesbian Republicans who still wish to support him. Another partial article is included in the clippings titled "Reports of Rape in Pacific Spur Air Force Steps".
Date:
March 9, 2004
Creator:
Kirkpatrick, David D.
Object Type:
Clipping
System:
The UNT Digital Library
A High Order Mixed Vector Finite Element Method for Solving the Time Dependent Maxwell Equations on Unstructured Grids
We present a mixed vector finite element method for solving the time dependent coupled Ampere and Faraday laws of Maxwell's equations on unstructured hexahedral grids that employs high order discretization in both space and time. The method is of arbitrary order accuracy in space and up to 5th order accurate in time, making it well suited for electrically large problems where grid anisotropy and numerical dispersion have plagued other methods. In addition, the method correctly models both the jump discontinuities and the divergence-free properties of the electric and magnetic fields, is charge and energy conserving, conditionally stable, and free of spurious modes. Several computational experiments are performed to demonstrate the accuracy, efficiency and benefits of the method.
Date:
March 9, 2004
Creator:
Rieben, R. N.; Rodrigue, G. H. & White, D. A.
Object Type:
Article
System:
The UNT Digital Library
Homeland Security Advisory System: Possible Issues for Congressional Oversight
This report provides information about the Possible Issues for Congressional Oversight on the Homeland Security Advisory System. The homeland security advisory system is a color-coded terrorist threat warning system administered by the DHS.
Date:
March 9, 2004
Creator:
Reese, Shawn
Object Type:
Report
System:
The UNT Digital Library
Information Security: Technologies to Secure Federal Systems
A letter report issued by the General Accounting Office with an abstract that begins "Federal agencies rely extensively on computerized information systems and electronic data to carry out their missions. The security of these systems and date is essential to preventing data tampering, disruptions in critical operations, fraud, and inappropriate disclosure of sensitive information. Congress and the executive branch have taken actions to address this challenge, such as enacting and implementing the Federal Information Security Management Act (FISMA). FISMA and other federal guidance discuss the need for specific technical controls to secure information systems. In order to meet the requirements of FISMA to effectively implement these technical controls, it is critical that federal agencies consider whether they have adequately implemented available cybersecurity technologies. GAO was asked by the Chairman of the House Committee on Government Reform and its Subcommittee on Technology, Information Policy, Intergovernmental Relations and the Census to identify commercially available, state-of-the-practice cybersecurity technologies that federal agencies can use to defend their computer systems against cyber attacks."
Date:
March 9, 2004
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Investigating the Affinities and Persistence of VX Nerve Agent in Environmental Matrices
Laboratory experiments were conducted to determine environmental variables that affect the affinities and persistence of the nerve agent O-ethyl S-(2-diisopropylaminoethyl) methylphosphonothiolate (VX) at dilute concentrations in environmental matrices. Quantitative analyses of VX and its degradation products were performed using LC-MS. Batch hydrolysis experiments demonstrated an increasing hydrolysis rate as pH increased, as shown in previous studies, but also indicated that dissolved aqueous constituents can cause significant differences in the absolute hydrolysis rate. Adsorption isotherms from batch aqueous experiments revealed that VX has a high affinity for hydrophobic organics, a moderate affinity for montmorillonite clay, and a very low affinity for an iron-oxyhydroxide soil mineral, goethite. The adsorption on goethite was increased with the presence of dissolved organic matter in solution. VX degraded rapidly when dried onto goethite, when an inner-sphere complex was forced. No enhanced degradation occurred with goethite in small amounts water. These results suggest that aqueous conditions have important controls on VX adsorption and degradation in the environment and a more mechanistic understanding of these controls is needed in order to enable accurate predictions of its long-term fate and persistence.
Date:
March 9, 2004
Creator:
Love, A H; Vance, A L; Reynolds, J G & Davisson, M L
Object Type:
Article
System:
The UNT Digital Library
Iraq: Paris Club Debt Relief
None
Date:
March 9, 2004
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Iraq: U.S. Military Operations
This report discusses US military operations in Iraq. Iraq's chemical, biological, and nuclear weapons programs, together with Iraqi long-range missile development and support for al-Queda terrorism, were the primary justifications put forward for military action.
Date:
March 9, 2004
Creator:
Bowman, Steve
Object Type:
Report
System:
The UNT Digital Library
Legal Issues Related to Proposed Drilling for Oil and Gas in the Arctic National Wildlife Refuge (ANWR)
This report outlines legal issues around permit drilling for oil and gas in the coastal plain of the Arctic National Wildlife Refuge (ANWR), Alaska as background for congressional legislation. Updated March 9, 2004.
Date:
March 9, 2004
Creator:
Baldwin, Pamela
Object Type:
Report
System:
The UNT Digital Library
Luminosity and Redshift dependence of quasar spectral properties
Using a large sample of quasar spectra from the SDSS, we examine the composite spectral trends of quasars as functions of both redshift and luminosity, independently of one another. Aside from the well known Baldwin effect (BE)--the decrease of line equivalent width with luminosity--the average spectral properties are remarkably similar. Host galaxy contamination and the BE are the primary causes for apparent changes in the average spectral slope of the quasars. The BE is detected for most emission lines, including the Balmer lines, but with several exceptions including NV1240A. Emission line shifts of several lines are associated with the BE. The BE is mainly a function of luminosity, but also partly a function of redshift in that line equivalent widths become stronger with redshift. Some of the complex iron features change with redshift, particularly near the small blue bump region.
Date:
March 9, 2004
Creator:
al., Daniel E. Vanden Berk et
Object Type:
Article
System:
The UNT Digital Library