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2010 GORDON RESEARCH CONFERENCE ON MITOCHONDRIA & CHLOROPLASTS, LUCCA, ITALY, JULY 11-16, 2010
The 2010 GRC on Mitochondria & Chloroplasts will assemble an international group of molecular, structural and cellular biologists, biochemists and geneticists investigating a broad spectrum of fundamental problems related to the biology of these organelles in animal, plant and fungal cells. This field has witnessed an extraordinary expansion in recent years, fueled by the discovery of the role of mitochondria in human disease and ageing, and of the synergy of chloroplasts and mitochondria in energetic output, the identification of novel factors involved in organelle division, movement, signaling and acclimation to changing environmental conditions, and by the powerful tools of organelle proteomics. The 2010 GRC will highlight advances in the elucidation of molecular mechanisms of organelle biogenesis including regulation of genome structure, evolution and expression, organellar protein import, assembly and turnover of respiratory and photosynthetic complexes, bidirectional signaling between organelles and nucleus, organelle morphology and dynamics, and the integration of cellular metabolism. We will also explore progress in mechanisms of disease and ageing/ senescence in animals and plants. The organellar field has forged new fronts toward a global and comprehensive understanding of mitochondrial and chloroplast biology at the molecular level. Many of the molecules under study in model organisms are responsible …
Date:
July 16, 2010
Creator:
Barkan, Alice
Object Type:
Article
System:
The UNT Digital Library
2010 Tax Filing Season: IRS's Performance Improved in Some Key Areas, but Efficiency Gains Are Possible in Others
A letter report issued by the Government Accountability Office with an abstract that begins "The Internal Revenue Service's (IRS) filing season is an enormous undertaking that includes processing individual income tax returns, issuing refunds, and responding to taxpayers. GAO was asked to assess IRS's 2010 filing season performance in relation to its goals and prior years' performance processing individual tax returns, answering telephones, and delivering Web and face-to-face services. To conduct the analysis, GAO analyzed data and documents from IRS, interviewed IRS officials, observed IRS operations, and interviewed tax industry experts."
Date:
December 16, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Abortion Services and Military Medical Facilities
The purpose of this report is to describe and discuss the provisions for providing abortion services to military personnel, their dependents, and other military health care beneficiaries at military medical facilities. The report describes the history of these provisions, with particular emphasis on legislative actions. Finally, this report discusses a number of proposals to modify the law, as well as other related legislative and administrative actions.
Date:
December 16, 2010
Creator:
Burrelli, David F.
Object Type:
Report
System:
The UNT Digital Library
Abstraction of Information From 2- and 3-Dimensional Porflow Models Into a 1-D Goldsim Model - 11404
The Savannah River National Laboratory has developed a 'hybrid' approach to Performance Assessment modeling which has been used for a number of Performance Assessments. This hybrid approach uses a multi-dimensional modeling platform (PorFlow) to develop deterministic flow fields and perform contaminant transport. The GoldSim modeling platform is used to develop the Sensitivity and Uncertainty analyses. Because these codes are performing complementary tasks, it is incumbent upon them that for the deterministic cases they produce very similar results. This paper discusses two very different waste forms, one with no engineered barriers and one with engineered barriers, each of which present different challenges to the abstraction of data. The hybrid approach to Performance Assessment modeling used at the SRNL uses a 2-D unsaturated zone (UZ) and a 3-D saturated zone (SZ) model in the PorFlow modeling platform. The UZ model consists of the waste zone and the unsaturated zoned between the waste zone and the water table. The SZ model consists of source cells beneath the waste form to the points of interest. Both models contain 'buffer' cells so that modeling domain boundaries do not adversely affect the calculation. The information pipeline between the two models is the contaminant flux. The domain …
Date:
November 16, 2010
Creator:
Taylor, G. & Hiergesell, R.
Object Type:
Article
System:
The UNT Digital Library
Accountable Science: The COMPETES Act Needs to Demonstrate an Accountability Attitude
Article on the U.S. National Science Foundation's (NSF) Broader Impacts Merit Review Criterion in relation to the America COMPETES Reauthorization Act of 2010.
Date:
September 16, 2010
Creator:
Holbrook, J. Britt
Object Type:
Article
System:
The UNT Digital Library
Activation Layer Stabilization of High Polarization Photocathodes in Sub-Optimal RF Gun Environments
Specific activation recipes for bulk, 100 nm thick MBE grown and high polarization III-V photocathode material have been developed which mitigate the effects of exposure to background gasses. Lifetime data using four representative gasses were acquired for bulk GaAs, 100 nm unstrained GaAs and strained superlattice GaAs/GaAsP, all activated both with Cs and then Cs and Li (bi-alkali). Each photoemitter showed marked resilience improvement when activated using the bi-alkali recipe compared to the standard single alkali recipe. A dual alkali activation system at SLAC was constructed, baked and commissioned with the purpose of performing spin-polarization measurements on electrons emitted from the bi-alkali activated surfaces. An end station at SSRL was configured with the required sources for energy resolved photoemission measurements on the bi-alkali activated and CO2 dosed surfaces. The bi-alkali recipes were successfully implemented at SLAC/SSRL. Measurements at SLAC of the photoelectron spin-polarization from the modified activation surface showed no sign of a change in value compared to the standard activated material, i.e., no ill effects. Analysis of photoemission data indicates that the addition of Li to the activation layer results in a multi-layer structure. The presence of Li in the activation layer also acts as an inhibitor to CO2 …
Date:
November 16, 2010
Creator:
Mulhollan, Gregory A.
Object Type:
Report
System:
The UNT Digital Library
Adaptive and Efficient Computing for Subsurface Simulation within ParFlow
This project is concerned with the PF.WRF model as a means to enable more accurate predictions of wind fluctuations and subsurface storage. As developed at LLNL, PF.WRF couples a groundwater (subsurface) and surface water flow model (ParFlow) to a mesoscale atmospheric model (WRF, Weather Research and Forecasting Model). It was developed as a unique tool to address coupled water balance and wind energy questions that occur across traditionally separated research regimes of the atmosphere, land surface, and subsurface. PF.WRF is capable of simulating fluid, mass, and energy transport processes in groundwater, vadose zone, root zone, and land surface systems, including overland flow, and allows for the WRF model to both directly drive and respond to surface and subsurface hydrologic processes and conditions. The current PF.WRF model is constrained to have uniform spatial gridding below the land surface and matching areal grids with the WRF model at the land surface. There are often cases where it is advantageous for land surface, overland flow and subsurface models to have finer gridding than their atmospheric counterparts. Finer vertical discretization is also advantageous near the land surface (to properly capture feedbacks) yet many applications have a large vertical extent. However, the surface flow is …
Date:
November 16, 2010
Creator:
Tiedeman, H & Woodward, C S
Object Type:
Report
System:
The UNT Digital Library
Advanced Compton scattering light source R&D at LLNL
We report the design and current status of a monoenergetic laser-based Compton scattering 0.5-2.5 MeV {gamma}-ray source. Previous nuclear resonance fluorescence results and future linac and laser developments for the source are presented. At MeV photon energies relevant for nuclear processes, Compton scattering light sources are attractive because of their relative compactness and improved brightness above 100 keV, compared to typical 4th generation synchrotrons. Recent progress in accelerator physics and laser technology have enabled the development of a new class of tunable Mono-Energetic Gamma-Ray (MEGa-Ray) light sources based on Compton scattering between a high-brightness, relativistic electron beam and a high intensity laser pulse produced via chirped-pulse amplification (CPA). A new precision, tunable gamma-ray source driven by a compact, high-gradient X-band linac is currently under development and construction at LLNL. High-brightness, relativistic electron bunches produced by an X-band linac designed in collaboration with SLAC will interact with a Joule-class, 10 ps, diode-pumped CPA laser pulse to generate tunable {gamma}-rays in the 0.5-2.5 MeV photon energy range via Compton scattering. Based on the success of the previous Thomson-Radiated Extreme X-rays (T-REX) Compton scattering source at LLNL, the source will be used to excite nuclear resonance fluorescence lines in various isotopes; applications include …
Date:
February 16, 2010
Creator:
Albert, F.; Anderson, S. G.; Anderson, G.; Betts, S. M.; Chu, T. S.; Gibson, D. J. et al.
Object Type:
Article
System:
The UNT Digital Library
THE AFFECTS OF HALIDE MODIFIERS ON THE SORPTION KINETICS OF THE LI-MG-N-H SYSTEM
In this present work, the affects of different transition metal halides (TiCl{sub 3}, VCl{sub 3}, ScCl{sub 3} and NiCl{sub 2}) on the sorption properties of the 1:1 molar ratio of LiNH{sub 2} to MgH{sub 2} are investigated. The modified mixtures were found to contain LiNH{sub 2}, MgH{sub 2} and LiCl. TGA results showed that the hydrogen desorption temperature was reduced with the modifier addition in this order: TiCl{sub 3}>ScCl{sub 3}>VCl{sub 3}>NiCl{sub 2}. Ammonia release was not significantly reduced resulting in a weight loss greater than the theoretical hydrogen storage capacity of the material. The isothermal sorption kinetics of the modified systems showed little improvement after the first dehydrogenation cycle over the unmodified system but showed drastic improvement in rehydrogenation cycles. XRD and Raman spectroscopy identified the cycled material to be composed of LiH, MgH{sub 2}, Mg(NH{sub 2}){sub 2} and Mg{sub 3}N{sub 2}.
Date:
December 16, 2010
Creator:
Erdy, C.; Gray, J.; Lascola, R. & Anton, D.
Object Type:
Article
System:
The UNT Digital Library
Afghanistan: Politics, Elections, and Government Performance
This report discusses the current political state of Afghanistan, as well as the Afghan government. This report also discusses Afghanistan's relationship with the United States, particularly U.S. efforts to urge President Hamid Karzai, to address corruption within the Afghan government. The report also includes discussion of election fraud and corruption in Afghanistan.
Date:
December 16, 2010
Creator:
Katzman, Kenneth
Object Type:
Report
System:
The UNT Digital Library
eGY-Africa: Addressing the Digital Divide for Science in Africa
Adoption of information and communication technologies and access to the Internet is expanding in Africa, but because of the rapid growth elsewhere, a Digital Divide between Africa and the rest of the world exists, and the gap is growing. In many sub-Saharan African countries, education and research sector suffers some of the worst deficiencies in access to the Internet, despite progress in development of NRENs - National Research and Education (cyber) Networks. By contrast, it is widely acknowledged in policy statements from the African Union, the UN, and others that strength in this very sector provides the key to meeting and sustaining Millennium Development Goals. Developed countries with effective cyber-capabilities proclaim the benefits to rich and poor alike arising from the Information Revolution. This is but a dream for many scientists in African institutions. As the world of science becomes increasingly Internet-dependent, so they become increasingly isolated. eGY-Africa is a bottom-up initiative by African scientists and their collaborators to try to reduce this Digital Divide by a campaign of advocacy for better institutional facilities. Four approaches are being taken. The present status of Internet services, problems, and plans are being mapped via a combination of direct measurement of Internet performance …
Date:
June 16, 2010
Creator:
Barton, C. E.; Amory-Mazaudier, C.; Barry, B.; Chukwuma; Cottrell, R. L.; Kalim, U. et al.
Object Type:
Article
System:
The UNT Digital Library
Africa Command: U.S. Strategic Interests and the Role of the U.S. Military in Africa
In recent years, analysts and U.S. policymakers have noted Africa's growing strategic importance to U.S. interests. On February 6, 2007, the Bush Administration announced the creation of a new unified combatant command, U.S. Africa Command or AFRICOM, to promote U.S. national security objectives in Africa and its surrounding waters. This report provides information on AFRICOM's mission, structure, interagency coordination, and its basing and manpower requirements. The report also gives a broad overview of U.S. strategic interests in Africa and the role of U.S. military efforts on the continent as they pertain to the creation of Africa Command.
Date:
November 16, 2010
Creator:
Ploch, Lauren
Object Type:
Report
System:
The UNT Digital Library
Agricultural Disaster Assistance
This report has two sections. The first provides an overview of the current U.S. Department of Agriculture (USDA) disaster assistance programs: federal crop insurance, NAP payments, emergency disaster loans, the new Supplemental Revenue Assistance Payments Program (SURE), and four other smaller disaster programs authorized in the 2008 farm bill. The second section reviews the recent history of emergency supplemental farm disaster assistance.
Date:
September 16, 2010
Creator:
Shields, Dennis A. & Chite, Ralph M.
Object Type:
Report
System:
The UNT Digital Library
Agriculture in the WTO: Limits on Domestic Support
This report provides a brief overview of the World Trade Organization's (WTO) commitments most relevant for U.S. domestic farm policy.
Date:
June 16, 2010
Creator:
Schnepf, Randy
Object Type:
Report
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 135, No. 17, Ed. 1 Thursday, September 16, 2010
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
September 16, 2010
Creator:
Lucas, Melinda L.
Object Type:
Newspaper
System:
The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 135, No. 30, Ed. 1 Thursday, December 16, 2010
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
December 16, 2010
Creator:
Lucas, Melinda L.
Object Type:
Newspaper
System:
The Portal to Texas History
The Altus Times (Altus, Okla.), Vol. 112, No. 51, Ed. 1 Tuesday, February 16, 2010
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 16, 2010
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 112, No. 71, Ed. 1 Tuesday, March 16, 2010
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
March 16, 2010
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 112, No. 94, Ed. 1 Friday, April 16, 2010
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 16, 2010
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 112, No. 115, Ed. 1 Sunday, May 16, 2010
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 16, 2010
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 112, No. 137, Ed. 1 Wednesday, June 16, 2010
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 16, 2010
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 112, No. 159, Ed. 1 Friday, July 16, 2010
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 16, 2010
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 112, No. 203, Ed. 1 Thursday, September 16, 2010
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 16, 2010
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 112, No. 246, Ed. 1 Tuesday, November 16, 2010
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 16, 2010
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History