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Altus Times (Altus, Okla.), Vol. 102, No. 177, Ed. 1 Tuesday, September 25, 2001
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 25, 2001
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Aviation Security: Vulnerabilities in, and Alternatives for, Preboard Screening Security Operations
Testimony issued by the General Accounting Office with an abstract that begins "A safe and secure civil aviation system is critical to the nation's overall security, physical infrastructure, and economy. Billions of dollars and countless programs and policies have gone into developing such a system. Although many of the specific factors contributing to the terrible events of September 11 are still unclear, it is apparent that our aviation security system is plagued by serious weaknesses that can have devastating consequences. Last year, as part of an undercover investigation, GAO special agents used fake law enforcement badges and credentials to gain access to secure areas at two airports. They were also issued tickets and boarding passes, and could have carried weapons, explosives, or other dangerous items onto the aircraft. GAO tests of airport screeners also found major shortcomings in their ability to detect dangerous items hidden on passengers or in carry-on luggage. These weaknesses have raised questions about the need for alternative approaches. In assessing alternatives, five outcomes should be considered: improving screener performance, establishing accountability, ensuring cooperation among stakeholders, moving people efficiently, and minimizing legal and liability issues."
Date:
September 25, 2001
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 79, No. 303, Ed. 1 Tuesday, September 25, 2001
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
September 25, 2001
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 96, No. 77, Ed. 1 Tuesday, September 25, 2001
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
September 25, 2001
Creator:
Keasling, Edna & Mahoney, Kent
Object Type:
Newspaper
System:
The Portal to Texas History
Brady Standard-Herald and Heart O' Texas News (Brady, Tex.), Ed. 1 Tuesday, September 25, 2001
Semiweekly newspaper from Brady, Texas that includes local, state, and national news along with advertising.
Date:
September 25, 2001
Creator:
Stewart, James E.
Object Type:
Newspaper
System:
The Portal to Texas History
Comparison of Refractory Performance in Black Liquor Gasifiers and a Smelt Test System
Prior laboratory corrosion studies along with experience at the black liquor gasifier in New Bern, North Carolina, clearly demonstrate that serious material problems exist with the gasifier's refractory lining. Mullite-based and alumina-based refractories used at the New Bern facility suffered significant degradation even though they reportedly performed adequately in smaller scale systems. Oak Ridge National Laboratory's involvement in the failure analysis, and the initial exploration of suitable replacement materials, led to the realization that a simple and reliable, complementary method for refractory screening was needed. The development of a laboratory test system and its suitability for simulating the environment of black liquor gasifiers was undertaken. Identification and characterization of corrosion products were used to evaluate the test system as a rapid screening tool for refractory performance and as a predictor of refractory lifetime. Results from the test systems and pl ants were qualitatively similar.
Date:
September 25, 2001
Creator:
Peascoe, RA
Object Type:
Article
System:
The UNT Digital Library
Congressional Resources in CRS Research Centers and the La Follette Congressional Reading Room
This report describes types of CRS products and a selection of the most frequently used printed and online reference sources available in the reading room and research centers for use by congressional staff.
Date:
September 25, 2001
Creator:
Gerli, Merete F.
Object Type:
Report
System:
The UNT Digital Library
Congressional Resources in CRS Research Centers and the La Follette Congressional Reading Room
This report describes types of CRS products and a selection of the most frequently used printed and online reference sources available in the reading room and research centers for use by congressional staff. These deal with legislation and public policy; bills, congressional documents, laws, and regulations; Congress, elections, and politics; the federal government; directories of organizations, associations, corporations, state agencies, educational institutions, and the media; biographical information; data on foreign countries and international affairs; quick facts and statistics; and special collections such as quotations.
Date:
September 25, 2001
Creator:
Gerli, Merete F.
Object Type:
Report
System:
The UNT Digital Library
Daily Journal (Perry, Okla.), Vol. 108, No. 188, Ed. 1 Tuesday, September 25, 2001
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 25, 2001
Creator:
Brown, Gloria
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Development of Low-cost Hydrogen Sensors
This research was aimed at understanding and improving the speed and reproducibility of our resistive hydrogen sensor, along with complementary efforts in manufacturability and further design improvements. Maskworks were designed to allow for the printing and firing of multi-sensor layouts (15 per substrate) and a large batch of these sensors was produced using standard thick-film manufacturing lines. Piece-to-piece variations of both the as-made resistance and the response of these sensors to hydrogen were within acceptable tolerances, and the sensor design has now been released for commercial prototyping. Automated testing was begun in order to develop long-term performance data. Dynamic response of selected sensors was measured before and after exposures to methane, hydrogen sulfide, and carbon monoxide, in order to assess the effects of interference gases and surface poisoning. As expected, H{sub 2}S degrades the sensor somewhat, whereas CH{sub 4} and CO do not create significant interference when air is present.
Date:
September 25, 2001
Creator:
Lauf, R.J.
Object Type:
Report
System:
The UNT Digital Library
Development of novel epidermal growth receptor-basedradiopharmaceuticals: Imaging agents for breast cancer
The goal of this research was to develop epidermal growthfactor receptor (EGFR) nuclear medicine breast cancer imaging agents. Ourapproach was to synthesize small molecule inhibitors of the EGFR tyrosinekinase (tk) suitable for labeling with single photon or positron-emittingradioisotopes and evaluate the imaging potential of these new molecules.We have synthesized and fully characterized 22 quinazoline compounds. Allcompounds inhibit EGFR tk phosphorylation activity in the nanomolarrange. All compounds tested exhibited specificity for the EGFR tk versusthe ErbB2 and ErbB4 tyrosine kinases. A radiometric binding assay usingan iodine-125 labeled quinazoline was developed to determine the affinityof the quinazolines for the EGFR tk ATP binding site. The affinitiesranged from 0.4-51 nM. The octanol/water partition coefficients (Log P;lipophilicity) of the new compounds ranged from 2.2-5.5. Six compoundshave been labeled with fluorine-18. Biodistribution in EGFRoverexpressing tumor bearing mice demonstrated tumor uptake buthighlighted delivery and metabolism issues. The 2-fluoro quinazoline wasnot metabolized in an in vitro hepatocyte study. From this work a breadthof agent characteristics was created establishing the foundation forfuture research toward the optimal EGFR imaging agent.
Date:
September 25, 2001
Creator:
Van Brocklin, Henry F.
Object Type:
Report
System:
The UNT Digital Library
The DOE National Transportation Program Cost-Estimating Model
The United States Department of Energy (DOE) carries out a significant amount of transportation each year, including waste remediation activities at the sites for which it is responsible. In future years, the amount of material transported is expected to increase, and the costs of this transportation are expected to be large. To support the assessment of such costs, a cost-estimating model was developed in 1996, peer-reviewed against other available packaging and transportation cost data, and used to calculate the costs for a significant number of shipping campaigns of radioactive waste. This cost-estimating model, known as the Ten-year Plan Transportation Model (TEPTRAM), served as the cost-estimating model for radioactive material shipments in developing the DOE Office of Environmental Management's Ten Year Plan. The TEPTRAM model considered costs for recovery and processing of the wastes, packaging of the wastes for transport, carriage of the waste and a rough estimate of labor cost s associated with preparing and undertaking the shipments. At the user's direction, the model could also include the cost for DOE's interaction with its external stakeholders (e.g., state and local governments and tribal entities) and the cost associated with tracking and communication (e.g., use of the DOE TRANSCOM system). By …
Date:
September 25, 2001
Creator:
Rawl, R.R.
Object Type:
Article
System:
The UNT Digital Library
Effect of Surface Condition and Heat Treatment on Corrosion of Type 316L Stainless Steel in a Mercury Thermal Convection Loop
Two thermal convection loops (TCLs) fabricated from 316L stainless steel and containing mercury and a variety of 316L coupons representing variable surface conditions and heat treatments have been operated continuously for 2000 h. Surface conditions included surface ground, polished, gold-coated, chemically etched, bombarded with Fe to simulate radiation damage, and oxidized. Heat treatments included solution treated, welded, and sensitized. In addition, a nitrogen doped 316L material, termed 316LN, was also examined in the solution treated condition. Duplicate TCLs were operated in this experiment--both were operated with a 305 C peak temperature, a 65 C temperature gradient, and mercury velocity of 1.2 m/min--but only one included a 36 h soak in Hg at 310 C just prior to operation to encourage wetting. Results indicate that the soak in Hg at 310 C had no lasting effect on wetting or compatibility with Hg. Further, based on examination of post-test wetting and coupon weight loss, only the gold-coated surfaces revealed significant interaction with Hg. In areas wetted significantly by Hg, the extreme surface of the stainless steel (ca 10 {micro}m) was depleted in Ni and Cr compared to the bulk composition.
Date:
September 25, 2001
Creator:
Pawel, S. J.
Object Type:
Report
System:
The UNT Digital Library
Enhanced Site Characterization of the 618-4 Burial Ground
This report describes the results obtained from deployment of the Enhanced Site Characterization System (ESCS) at the Hanford Site's 618-4 Burial Ground. The objective of this deployment was to use advanced geostatistical methods to integrate and interpret geophysical and ground truth data, to map the physical types of waste materials present in unexcavated portions of the burial ground. One issue of particularly interest was the number of drums (containing depleted uranium metal shavings or uranium-oxide powder) remaining in the burial ground and still requiring removal.Fuzzy adaptive resonance theory (ART), a neural network classification method, was used to cluster the study area into 3 classes based on their geophysical signatures. Multivariate statistical analyses and discriminant function analysis (DFA) indicated that the drum area as well as a second area (the SW anomaly) had similar geophysical signatures that were different from the rest of the burial ground. Further analysis of the drum area suggested that as many as 770 drums to 850 drums may remain in that area. Similarities between the geophysical signatures of the drum area and the SW anomaly suggested that excavation of the SW anomaly area also proceed with caution.Deployment of the ESCS technology was successful in integrating multiple …
Date:
September 25, 2001
Creator:
Murray, Christopher J.; Last, George V. & Chien, Yi-Ju
Object Type:
Report
System:
The UNT Digital Library
Enhanced Site Characterization of the 618-4 Burial Ground
This report describes the results obtained from deployment of the Enhanced Site Characterization System (ESCS) at the Hanford Site's 618-4 Burial Ground. The objective of this deployment was to use advanced geostatistical methods to integrate and interpret geophysical and ground truth data, to map the physical types of waste materials present in unexcavated portions of the burial ground. One issue of particularly interest was the number of drums (containing depleted uranium metal shavings or uranium-oxide powder) remaining in the burial ground and still requiring removal.Fuzzy adaptive resonance theory (ART), a neural network classification method, was used to cluster the study area into 3 classes based on their geophysical signatures. Multivariate statistical analyses and discriminant function analysis (DFA) indicated that the drum area as well as a second area (the SW anomaly) had similar geophysical signatures that were different from the rest of the burial ground. Further analysis of the drum area suggested that as many as 770 drums to 850 drums may remain in that area. Similarities between the geophysical signatures of the drum area and the SW anomaly suggested that excavation of the SW anomaly area also proceed with caution. Deployment of the ESCS technology was successful in integrating …
Date:
September 25, 2001
Creator:
Murray, Christopher J; Last, George V & Chien, Yi-Ju
Object Type:
Report
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, September 25, 2001
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 25, 2001
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Gene conversion is strongly induced in human cells by double-strand breaks and is modulated by the expression of BCL-XL
Homology-directed repair (HDR) of DNA double-strand breaks (DSBs) is a well-established mechanism that contributes to the maintenance of genomic stability in rodent cells, and it has been assumed that HDR is of similar importance in the repair of DSBs in human cells. However, in addition to promoting genomic stability, some outcomes of homologous recombination can be deleterious, suggesting that factors exist to regulate HDR. We previously demonstrated that overexpression of BCL-2 or BCL-xL enhanced the frequency of x-ray-induced mutations involving the TK1 locus, including loss of heterozygosity (LOH) events presumed to arise by mitotic recombination. The present study was designed to test whether HDR is a prominent DSB repair pathway in human cells, and to directly determine whether ectopic expression of BCL-xL affects HDR. We used the B-lymphoblastoid cell line TK6, which expresses wild-type TP53 and resembles normal lymphocytes in undergoing apoptosis following! genotoxic stress. U sing isogenic derivatives of TK6 cells (TK6-neo, TK6-bcl-xL), we find that a DSB in an integrated HDR reporter stimulates gene conversion 40-50-fold in TK6-neo cells, demonstrating that a DSB can be efficiently repaired by gene conversion in human cells. Significantly, DSB-induced gene conversion events are 3- to 4-fold more frequent in BCL-xL overexpressing cells. …
Date:
September 25, 2001
Creator:
Wiese, Claudia; Pierce, Andrew J.; Gauny, Stacey S.; Jasin, Maria & Kronenberg, Amy
Object Type:
Article
System:
The UNT Digital Library
Global Climate Change: Market-Based Strategies to Reduce Greenhouse Gases
This report discusses the market-based strategies to reduce greenhouse gases for global climate change.
Date:
September 25, 2001
Creator:
Parker, Larry
Object Type:
Report
System:
The UNT Digital Library
Hanford Site Environmental Report for Calendar Year 2000
This Hanford Site environmental report is prepared annually to summarize environmental data and information, to describe environmental management performance, to demonstrate the status of compliance with environmental regulations, and to highlight major environmental programs and efforts.
Date:
September 25, 2001
Creator:
Poston, Ted M.; Hanf, Robert W.; Dirkes, Roger L. & Morasch, Launa F.
Object Type:
Report
System:
The UNT Digital Library
Intellectual Property: State Immunity in Infringement Actions
A letter report issued by the General Accounting Office with an abstract that begins "Intellectual property--which includes federally granted patents, trademarks, and copyrights--is often owned or used by state governmental entities, such as public institutions of higher education. Until recently, state entities that made unauthorized use of, or "infringed," the intellectual property of others were subject to lawsuits in federal court. In 1999, however, the U.S. Supreme Court held that states were not subject to such suits, striking down a federal law that would have taken away a state's right to claim immunity under the Eleventh Amendment of the U.S. Constitution when sued in federal court for patent infringement. Some intellectual property owners are concerned that they no longer have adequate remedies if a state commits infringement. Although the precise number is difficult to determine, few accusations of intellectual property infringement appear to have been made against the states through either lawsuits or matters handled out of court. GAO identified 58 lawsuits that had been active since January 1985 in either a state or federal court in which a state was a defendant in an action involving the unauthorized use of intellectual property. Intellectual property owners appear to have few …
Date:
September 25, 2001
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Interim Action Record of Decision Remedial Alternative Selection Met Lab HWMF
The purpose of this interim action for the Metallurgical Laboratory HWMF Operable Unit is to minimize migration of contaminants to groundwater from the Metallurgical Laboratory Basin sediments and sediments associated with the process sewer line while risk assessment activities for the Carolina Bay are being planned and conducted.
Date:
September 25, 2001
Creator:
Palmer, E.
Object Type:
Report
System:
The UNT Digital Library
Measurement of Radon, Thoron, Isotopic Uranium and Thorium to Determine Occupational and Environmental Exposure and Risk at Fernald Feed Material Production Center Publication Date: September 25, 2001
Research Objectives: (1) To develop an accurate personal radon/thoron monitor to quantitate exposure to low airborne concentrations before and during removal and relocation of radium from the silos. (2) To develop a personal aerosol particle size sampler, based on the principles of the novel sampler we have developed. The sampler measures not only 222Rn decay product aerosol size but long lived nuclides. There are, as yet, no particle size distribution data on the aerosol particle size distribution of these nuclides during remediation at any DOE site, although the aerosol particle size is the major determinant of lung dose. (3) To develop the sequential radiochemistry necessary to measure any environmental sample for 228,230,232Th, 226,228Ra, 234,235,238U and 210Pb. To utilize the radiochemistry and accurately trace and delineate these nuclides in the environment. To obtain historic and present radiochemical data to determine the need for supplemental soil/water etc., measurements.
Date:
September 25, 2001
Creator:
Harley, Naomi H.
Object Type:
Report
System:
The UNT Digital Library
Medicare: Improvements Needed in Provider Communications and Contracting Procedures
Testimony issued by the General Accounting Office with an abstract that begins "Complete, accurate, and timely communication of program information is necessary to help Medicare providers comply with program requirements and appropriately bill for their services. Information provided to physicians about billing and payment policies is often incomplete, confusing, out of date, or even incorrect. GAO found that the rules governing Centers for Medicare and Medicaid Services (CMS) contracts with its claims processors lack incentives for efficient operations. Medicare contractors are chosen without full and open competition from among health insurance companies, rather from a broad universe of potential qualified entities, and CMS almost always uses cost-only contracts, which pay contractors for costs incurred but generally do not offer any type of performance incentives. To improve Medicare contractors' provider communications, CMS must develop a more centralized and coordinated approach consistent with the provisions of the Medicare Regulatory and Contracting Reform Act (MRCRA) of 2001. MRCRA would require that CMS (1) centrally coordinate contractors' provider education activities, (2) establish communications performance standards, (3) appoint a Medicare Provider Ombudsman, and (4) create a demonstration program to offer technical assistance to small providers. MRCRA would also broaden CMS authority so that various types …
Date:
September 25, 2001
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
National Emergency Powers
None
Date:
September 25, 2001
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library