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ABSTRACT: The Community Environmental Monitoring Program: Reducing Public Perception of Risk Through Stakeholder Involvement
Between 1951 and 1992, 928 nuclear tests were conducted at the Nevada Test Site (NTS), including 100 atmospheric and 828 underground tests. Initial public reaction to the tests was largely supportive, but by the late 1950s this began to change, largely as a result of fear of the potential for adverse health effects to be caused by exposure to ionizing radiation resulting from the tests. The nuclear power plant accident at Three Mile Island in 1979 served to heighten these fears, as well as foster a general distrust of the federal agencies involved and low public confidence in monitoring results. Modeled after a similar program that involved the public in monitoring activities around the Three Mile Island nuclear power plant, the Community Environmental Monitoring Program (CEMP) has promoted stakeholder involvement, awareness, and understanding of radiological surveillance in communities surrounding the NTS since 1981. It involves stakeholders in the operation, data collection, and dissemination of information obtained from a network of 29 stations across a wide area of Nevada, Utah, and California. It is sponsored by the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office (NNSA/NSO) and administered by the Desert Research Institute (DRI) of the Nevada System …
Date:
February 28, 2007
Creator:
Hartwell, T.
Object Type:
Article
System:
The UNT Digital Library
ACRF Ingest Software Status: New, Current, and Future - February 2007
The purpose of this report is to provide status of the ingest software used to process instrument data for the Atmospheric Radiation Measurement Program Climate Research Facility (ACRF). The report is divided into 4 sections: (1) for news about ingests currently under development, (2) for current production ingests, (3) for future ingest development plans, and (4) for information on retired ingests.
Date:
February 28, 2007
Creator:
Koontz, A. S.; Choudhury, S.; Ermold, B. D. & Gaustad, K. L.
Object Type:
Report
System:
The UNT Digital Library
Advanced Energy Technologies: Key Challenges to Their Development and Deployment
Testimony issued by the Government Accountability Office with an abstract that begins "For decades, the nation has benefited from relatively inexpensive energy, but it has also grown reliant on fossil fuels--oil, natural gas, and coal. Periodic imported oil supply disruptions have led to price shocks, yet the nation's dependence on imported energy is greater than ever. Fossil fuel emissions of carbon dioxide--linked to global warming--have also raised environmental concerns. The Department of Energy (DOE) has funded research and development (R&D) on advanced renewable, fossil, and nuclear energy technologies. GAO's report entitled DOE: Key Challenges Remain for Developing and Deploying Advanced Energy Technologies to Meet Future Needs examined the (1) R&D funding trends and strategies for developing advanced energy technologies; (2) key barriers to developing and deploying advanced energy technologies; and (3) efforts of the states and six selected countries to develop and deploy advanced energy technologies. GAO reviewed DOE R&D budget data and strategic plans and obtained the views of experts in DOE, industry, and academia, as well as state and foreign government officials."
Date:
February 28, 2007
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
The Altus Times (Altus, Okla.), Vol. 108, No. 287, Ed. 1 Wednesday, February 28, 2007
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 28, 2007
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
ANALYSIS OF TANK 28F SALTCAKE CORE SAMPLES FTF-456 - 467
Twelve LM-75 core samplers from Tank 28F sampling were received by SRNL for saltcake characterization. Of these, nine samplers contained mixtures of free liquid and saltcake, two contained only liquid, and one was empty. The saltcake contents generally appeared wet. A summary of the major tasks performed in this work are as follows: (1) Individual saltcake segments were extruded from the samplers and separated into saltcake and free liquid portions. (2) Free liquids were analyzed to estimate the amount of traced drill-string fluid contained in the samples. (3) The saltcake from each individual segment was homogenized, followed by analysis in duplicate. The analysis used more cost-effective and bounding radiochemical analyses rather than using the full Saltstone WAC suite. (4) A composite was created using an approximately equal percentage of each segment's saltcake contents. Supernatant liquid formed upon creation of the composite was decanted prior to use of the composite, but the composite was not drained. (5) A dissolution test was performed on the sample by contacting the composite with water at a 4:1 mass ratio of water to salt. The resulting soluble and insoluble fractions were analyzed. Analysis focused on a large subset of the Saltstone WAC constituents.
Date:
February 28, 2007
Creator:
Martino, C; Daniel McCabe, D; Tommy Edwards, T & Ralph Nichols, R
Object Type:
Report
System:
The UNT Digital Library
Appliances, Lighting, Electronics, and Miscellaneous EquipmentElectricity Use in New Homes
The "Other" end-uses (appliances, lighting, electronics, andmiscellaneous equipment) continue to grow. This is particularly true innew homes, where increasing floor area and amenities are leading tohigher saturation of these types of devices. This paper combines thefindings of several field studies to assess the current state ofknowledge about the "Other" end-uses in new homes. The field studiesinclude sub-metered measurements of occupied houses in Arizona, Florida,and Colorado, as well as device-level surveys and power measurements inunoccupied new homes. We find that appliances, lighting, electronics, andmiscellaneous equipment can consume from 46 percent to 88 percent ofwhole-house electricity use in current low-energy homes. Moreover, theannual consumption for the "Other" end-uses is not significantly lower innew homes (even those designed for low energy use) compared to existinghomes. The device-level surveys show that builder-installed equipment isa significant contributor to annual electricity consumption, and certaindevices that are becoming more common in new homes, such as structuredwiring systems, contribute significantly to this power consumption. Thesefindings suggest that energy consumption by these "Other" end uses isstill too large to allow cost-effective zero-energy homes.
Date:
February 28, 2007
Creator:
Brown, Richard E.; Rittelman, William; Parker, Danny & Homan,Gregory
Object Type:
Article
System:
The UNT Digital Library
Architect of the Capitol: Committed, Sustained Leadership Needed to Continue Progress
A letter report issued by the Government Accountability Office with an abstract that begins "The Architect of the Capitol (AOC) is responsible for the operation, maintenance, renovation, and new construction of the Capitol Hill complex, including the U.S. Capitol, the Library of Congress, and the Senate and House Office Buildings. In 2003, at the request of Congress, GAO issued a management review of AOC that contained recommendations designed to help AOC become more strategic and accountable. Subsequently, Congress directed GAO to monitor AOC's progress in implementing recommendations. This is the fourth status report on AOC's progress and summarizes GAO's assessment of AOC's overall progress and remaining actions in becoming more strategic and accountable, including AOC's responses to specific recommendations GAO made in January 2003 and subsequently. To assess AOC's progress, GAO analyzed AOC documents; interviewed AOC officials; and relied on the results of related GAO reviews, including reviews of the Capitol Visitor Center (CVC). AOC generally agreed with GAO's assessment of its progress, but noted that 2 additional recommendations--1 on financial management practices and 1 on collecting worker safety data--should be considered implemented. GAO acknowledges AOC's efforts in these areas, but maintains that further steps are necessary to fully implement …
Date:
February 28, 2007
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Asynchronous Event-Driven Particle Algorithms
We present in a unifying way the main components of three examples of asynchronous event-driven algorithms for simulating physical systems of interacting particles. The first example, hard-particle molecular dynamics (MD), is well-known. We also present a recently-developed diffusion kinetic Monte Carlo (DKMC) algorithm, as well as a novel event-driven algorithm for Direct Simulation Monte Carlo (DSMC). Finally, we describe how to combine MD with DSMC in an event-driven framework, and discuss some promises and challenges for event-driven simulation of realistic physical systems.
Date:
February 28, 2007
Creator:
Donev, A
Object Type:
Article
System:
The UNT Digital Library
Aviation Security: TSA's Staffing Allocation Model Is Useful for Allocating Staff among Airports, but Its Assumptions Should Be Systematically Reassessed
A letter report issued by the Government Accountability Office with an abstract that begins "Over 600 million people travel by air each year in the United States, and the screening of airline passengers and their carry-on and checked baggage is vital to securing our transportation security system. The Aviation and Transportation Security Act, enacted in November 2001, established the Transportation Security Administration (TSA) and significantly changed how passenger and checked baggage screening is conducted in the United States. This act removed screening responsibility from air carriers and the contractors who conducted screening for them, and placed this responsibility with TSA. As a result, TSA hired and deployed about 55,000 federal passenger and baggage Transportation Security Officers (TSO)--formerly known as screeners--to more than 400 airports nationwide based largely on the number of screeners that the air carrier contractors had employed. Since August 2002, however, TSA has been statutorily prohibited from exceeding 45,000 full-time equivalent positions available for screening. The Intelligence Reform and Terrorism Prevention Act of 2004, enacted in December 2004, required TSA to develop and submit to the Senate Committee on Commerce, Science, and Transportation, and the House of Representatives Committee on Transportation and Infrastructure, standards for determining the aviation …
Date:
February 28, 2007
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 86, No. 92, Ed. 1 Wednesday, February 28, 2007
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 28, 2007
Creator:
Clements, Clifford E.
Object Type:
Newspaper
System:
The Portal to Texas History
Borehole Summary Report for C4997 Rotary Drilling, WTP Seismic Boreholes Project, CY 2006
The following Final Geologic Borehole Report briefly describes the drilling of a single borehole at the Waste Treatment Plant (WTP) on the Hanford, Washington, U.S. Department of Energy (DOE) reservation. The location of the WTP is illustrated in Figure 1-1. The borehole was designated as “C4997”, and was drilled to obtain seismic and lithologic data for the Pretreatment Facility and High-Level Waste Vitrification Plant in the WTP. Borehole C4997 was drilled and logged to a total depth of 1428 ft below ground surface (bgs) on October 8, 2006, and was located approximately 150 ft from a recently cored borehole, designated as “C4998”. Pacific Northwest National Laboratory (PNNL) determined the locations for C4997, C4998, and other boreholes at the WTP in cooperation with the U.S. Army Corps of Engineers (USACE) Review Panel, and the Defense Nuclear Facilities Safety Board (DNFSB). The total depth of Borehole C4997 was also determined by PNNL.
Date:
February 28, 2007
Creator:
Difebbo, Thomas J.
Object Type:
Report
System:
The UNT Digital Library
Borehole Summary Report for Waste Treatment Plant Seismic Borehole C4993
A core hole (C4998) and three boreholes (C4993, C4996, and C4997) were drilled to acquire stratigraphic and downhole seismic data to model potential seismic impacts and to refine design specifications and seismic criteria for the Waste Treatment Plant (WTP) under construction on the Hanford Site. Borehole C4993 was completed through the Saddle Mountains Basalt, the upper portion of the Wanapum Basalt, and associated sedimentary interbeds, to provide a continuous record of the rock penetrated by all four holes and to provide access to the subsurface for geophysical measure¬ment. Presented and compiled in this report are field-generated records for the deep mud rotary borehole C4993 at the WTP site. Material for C4993 includes borehole logs, lithologic summary, and record of rock chip samples collected during drilling through the months of August through early October. The borehole summary report also includes documentation of the mud rotary drilling, borehole logging, and sample collection.
Date:
February 28, 2007
Creator:
Rust, Colleen F.; Barnett, D. BRENT; Bowles, Nathan A. & Horner, Jake A.
Object Type:
Report
System:
The UNT Digital Library
Brazil-U.S. Relations
This report analysis Brazil's political, economic, and social conditions, and how those conditions affect its role in the world and its relationship with the United States.
Date:
February 28, 2007
Creator:
Ribando, Clare M.
Object Type:
Report
System:
The UNT Digital Library
Cell shape regulates global histone acetylation in human mammary epithelial cells
Extracellular matrix (ECM) regulates cell morphology and gene expression in vivo; these relationships are maintained in three-dimensional (3D) cultures of mammary epithelial cells. In the presence of laminin-rich ECM (lrECM), mammary epithelial cells round up and undergo global histone deacetylation, a process critical for their functional differentiation. However, it remains unclear whether lrECM-dependent cell rounding and global histone deacetylation are indeed part of a common physical-biochemical pathway. Using 3D cultures as well as nonadhesive and micropatterned substrata, here we showed that the cell 'rounding' caused by lrECM was sufficient to induce deacetylation of histones H3 and H4 in the absence of biochemical cues. Microarray and confocal analysis demonstrated that this deacetylation in 3D culture is associated with a global increase in chromatin condensation and a reduction in gene expression. Whereas cells cultured on plastic substrata formed prominent stress fibers, cells grown in 3D lrECM or on micropatterns lacked these structures. Disruption of the actin cytoskeleton with cytochalasin D phenocopied the lrECM-induced cell rounding and histone deacetylation. These results reveal a novel link between ECM-controlled cell shape and chromatin structure, and suggest that this link is mediated by changes in the actin cytoskeleton.
Date:
February 28, 2007
Creator:
Le Beyec, Johanne; Xu, Ren; Lee, Sun-Young; Nelson, Celeste M.; Rizki, Aylin; Alcaraz, Jordi et al.
Object Type:
Article
System:
The UNT Digital Library
Cherokeean Herald (Rusk, Tex.), Vol. 158, No. 1, Ed. 1 Wednesday, February 28, 2007
Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date:
February 28, 2007
Creator:
Whitehead, Marie
Object Type:
Newspaper
System:
The Portal to Texas History
Child Welfare: Enactment of the Child and Family Services Improvement Act of 2006 (P.L. 109-288)
None
Date:
February 28, 2007
Creator:
Stoltzfus, Emilie
Object Type:
Report
System:
The UNT Digital Library
Chunking of Large Multidimensional Arrays
Data intensive scientific computations as well on-lineanalytical processing applications as are done on very large datasetsthat are modeled as k-dimensional arrays. The storage organization ofsuch arrays on disks is done by partitioning the large global array intofixed size hyper-rectangular sub-arrays called chunks or tiles that formthe units of data transfer between disk and memory. Typical queriesinvolve the retrieval of sub-arrays in a manner that accesses all chunksthat overlap the query results. An important metric of the storageefficiency is the expected number of chunks retrieved over all suchqueries. The question that immediately arises is "what shapes of arraychunks give the minimum expected number of chunks over a query workload?"In this paper we develop two probabilistic mathematical models of theproblem and provide exact solutions using steepest descent and geometricprogramming methods. Experimental results, using synthetic workloads onreal life data sets, show that our chunking is much more efficient thanthe existing approximate solutions.
Date:
February 28, 2007
Creator:
Rotem, Doron; Otoo, Ekow J. & Seshadri, Sridhar
Object Type:
Report
System:
The UNT Digital Library
The Clifton Record (Clifton, Tex.), Vol. 112, No. 9, Ed. 1 Wednesday, February 28, 2007
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
February 28, 2007
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
[Clipping: Founder of Texas navy was romantic rogue]
Newspaper clipping of an article about Texas founder Robert Potter, as well as Ernest C. Fisher, the author of a book about Potter. There are other articles on the other side of the clipping, including one about Hillary Clinton, and a letter to the editor.
Date:
February 28, 2007
Creator:
Vaughn, Reese
Object Type:
Clipping
System:
The Portal to Texas History
The Collegian (Hurst, Tex.), Vol. 19, No. 19, Ed. 1 Wednesday, February 28, 2007
Weekly student newspaper published in Hurst, Texas serving the Tarrant County College District that includes school news and information along with advertising.
Date:
February 28, 2007
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Colony Courier-Leader (The Colony, Tex.), Vol. 26, No. 4, Ed. 1 Wednesday, February 28, 2007
Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date:
February 28, 2007
Creator:
Bick, Jack & Crimmins, Blaine
Object Type:
Newspaper
System:
The Portal to Texas History
Critical issues for high-brightness heavy-ion beams- prioritized
This study group was initiated to consider whether there were any ''show-stopper'' issues with accelerators for heavy-ion warm-dense matter (WDM) and heavy-ion inertial fusion energy (HIF), and to prioritize them. Showstopper issues would appear as limits to beam current; that is, the beam would be well-behaved below the current limit, and significantly degraded in current or emittance if the current limit were exceeded at some region of an accelerator. We identified 14 issues: 1-6 could be addressed in the near term, 7-10 are potentially attractive solutions to performance and cost issues but are not yet fully characterized, 11-12 involve multibeam effects that cannot be more than partially studied in near-term facilities, and 13-14 involve new issues that are present in some novel driver concepts. Comparing the issues with the new experimental, simulation, and theoretical tools that we have developed, it is apparent that our new capabilities provide an opportunity to re-examine and significantly increase our understanding of the number one issue--halo growth and mitigation.
Date:
February 28, 2007
Creator:
Molvik, A. W.; Cohen, R.; Davidson, R.; Faltens, A.; Friedman, A.; Grisham, L. et al.
Object Type:
Report
System:
The UNT Digital Library
Crude Oil: Uncertainty about Future Oil Supply Makes It Important to Develop a Strategy for Addressing a Peak and Decline in Oil Production
A letter report issued by the Government Accountability Office with an abstract that begins "The U.S. economy depends heavily on oil, particularly in the transportation sector. World oil production has been running at near capacity to meet demand, pushing prices upward. Concerns about meeting increasing demand with finite resources have renewed interest in an old question: How long can the oil supply expand before reaching a maximum level of production--a peak--from which it can only decline? GAO (1) examined when oil production could peak, (2) assessed the potential for transportation technologies to mitigate the consequences of a peak in oil production, and (3) examined federal agency efforts that could reduce uncertainty about the timing of a peak or mitigate the consequences. To address these objectives, GAO reviewed studies, convened an expert panel, and consulted agency officials."
Date:
February 28, 2007
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Dark Matter Burners
We show that a star orbiting close enough to an adiabatically grown supermassive black hole (SMBH) can capture weakly interacting massive particles (WIMPs) at an extremely high rate. The stellar luminosity due to annihilation of captured WIMPs in the stellar core may be comparable to or even exceed the luminosity of the star due to thermonuclear burning. The model thus predicts the existence of unusual stars, essentially WIMP burners, in the vicinity of a SMBH. We find that the most efficient WIMP burners are stars with degenerate electron cores, e.g. white dwarfs (WDs); such WDs may have a very high surface temperature. If found, such stars would provide evidence for the existence of particle dark matter and can possibly be used to establish its density profile. On the other hand, the lack of such unusual stars may provide constraints on the WIMP density near the SMBH, as well as the WIMP-nucleus scattering and pair annihilation cross-sections.
Date:
February 28, 2007
Creator:
Moskalenko, Igor V.; /Stanford U., HEPL & Wai, Lawrence L.
Object Type:
Article
System:
The UNT Digital Library