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461 Matching Results
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Absorption and Emission in the Non-Poissonian Case
Article on absorption and emission in the Non-Poissonian Case.
Date:
July 28, 2004
Creator:
Aquino, Gerardo; Palatella, Luigi & Grigolini, Paolo
Object Type:
Article
System:
The UNT Digital Library
Accurate wavelength measurements and modeling of FeXV to FeXIX spectra recorded in high density plasmas between 13.5 to 17 A.
Iron spectra have been recorded from plasmas created at three different laser plasma facilities, the Tor Vergata University laser in Rome (Italy), the Hercules laser at ENEA in Frascati (Italy), and the Compact Multipulse Terawatt (COMET) laser at LLNL in California (USA). The measurements provide a means of identifying dielectronic satellite lines from FeXVI and FeXV in the vicinity of the strong 2p {yields} 3d transitions of FeXVII. About 80 {Delta}n {ge} 1 lines of FeXV (Mg-like) to FeXIX (O-like) were recorded between 13.8 to 17.1 {angstrom} with a high spectral resolution ({lambda}/{Delta}{lambda} {approx} 4000), about thirty of these lines are from FeXVI and FeXV. The laser produced plasmas had electron temperatures between 100 to 500 eV and electron densities between 10{sup 20} to 10{sup 22} cm{sup -3}. The Hebrew University Lawrence Livermore Atomic Code (HULLAC) was used to calculate the atomic structure and atomic rates for FeXV to FeXIX. HULLAC was used to calculate synthetic line intensities at T{sub e} = 200 eV and n{sub e} = 10{sup 21}cm{sup -3} for three different conditions to illustrate the role of opacity: optically thin plasmas with no excitation-autoionization/dielectronic recombination (EA/DR) contributions to the line intensities, optically thin plasmas that included EA/DR …
Date:
September 28, 2004
Creator:
May, M.; Beiersdorfer, P.; Dunn, J.; Jordan, N.; Osterheld, A.; Faenov, A. et al.
Object Type:
Article
System:
The UNT Digital Library
The Adaptive Response in p53 Cancer Prone Mice: Loss of heterozygosity and Genomic Instability.
The Trp53 gene is clearly associated with increased cancer risk. This, coupled with the broad understanding of its mode of action at the molecular level, makes this gene a good candidate for investigating the relationship between genetic risk factors and spontaneous cancer occurring in a mouse model exposed to low dose radiation. We have shown that adaptive response to chronic low dose radiation could increase cancer latency, as well as overall lifespan. To better understand the molecular processes that influence cellular risk, modern tools in molecular biology were used to evaluate the loss of heterozigozity (LOH) at the Trp53 locus, and chromosomal instability in the cells from mice exposed to chronic low dose radiation. Female mice carrying a single defective copy of the Trp53 gene were irradiated with doses of gamma-radiation delivered at a low dose rate of about 0.7 mGy/hr. Groups of mice (5 irradiated and 5 unexposed) were exposed to 0.33 mGy per day for 15, 30, 45, 60, 67 and 75 weeks equaling total body doses of 2.4, 4.7, 7.2, 9.7, 10.9 and 12.1 cGy, respectively. The presence of a single defective copy of the Trp53 gene increases cancer risk in these mice. However, in vivo exposure …
Date:
September 28, 2004
Creator:
Lavoie, Josée; Dolling, Jo-Anna; Mitchel, Ron E. J. & Boreham, Douglas R.
Object Type:
Report
System:
The UNT Digital Library
Adequate Yearly Progress (AYP): Implementation of the No Child Left Behind Act
This report is intended to provide an overview of the Adequate Yearly Process (AYP) concept and several related issues, a description of the AYP provisions of the No Child Left Behind Act, and an analysis of the implementation of these provisions by the U.S. Department of Education (ED) and the states. It will be updated when major administrative actions are taken by ED, or substantial new data on state implementation become available.
Date:
July 28, 2004
Creator:
Riddle, Wayne
Object Type:
Report
System:
The UNT Digital Library
Advanced ST Plasma Scenario Simulations for NSTX
Integrated scenario simulations are done for NSTX [National Spherical Torus Experiment] that address four primary milestones for developing advanced ST configurations: high {beta} and high {beta}{sub N} inductive discharges to study all aspects of ST physics in the high-beta regime; non-inductively sustained discharges for flattop times greater than the skin time to study the various current-drive techniques; non-inductively sustained discharges at high {beta} for flattop times much greater than a skin time which provides the integrated advanced ST target for NSTX; and non-solenoidal start-up and plasma current ramp-up. The simulations done here use the Tokamak Simulation Code (TSC) and are based on a discharge 109070. TRANSP analysis of the discharge provided the thermal diffusivities for electrons and ions, the neutral-beam (NB) deposition profile, and other characteristics. CURRAY is used to calculate the High Harmonic Fast Wave (HHFW) heating depositions and current drive. GENRAY/CQL3D is used to establish the heating and CD [current drive] deposition profiles for electron Bernstein waves (EBW). Analysis of the ideal-MHD stability is done with JSOLVER, BALMSC, and PEST2. The simulations indicate that the integrated advanced ST plasma is reachable, obtaining stable plasmas with {beta} {approx} 40% at {beta}{sub N}'s of 7.7-9, I{sub P} = 1.0 MA, …
Date:
October 28, 2004
Creator:
Kessel, C.E.; Synakowski, E.J.; Gates, D.A.; Harvey, R.W.; Kaye, S.M.; Mau, T.K. et al.
Object Type:
Report
System:
The UNT Digital Library
Advanced Vehicle Technologies: Energy, Environment, and Development Issues
This report discusses three major vehicle technologies — electric vehicles, hybrid electric vehicles, and fuel cell vehicles — as well as advanced component technologies. Each technology is discussed in terms of cost, fueling and maintenance infrastructure, and performance. The report also discusses key legislation in the 108th Congress, as well as federal, state, and local activity relevant to these technologies. This report will be updated as events warrant.
Date:
January 28, 2004
Creator:
Yacobucci, Brent D.
Object Type:
Report
System:
The UNT Digital Library
Afghanistan: Post-War Governance, Security, and U.S. Policy
The United States and its allies are helping Afghanistan emerging from more than 22 years of warfare, although substantial risk to Afghan stability remains. Before the U.S. military campaign against the orthodox Islamist Taliban movement began on October 7, 2001, Afghanistan had been mired in conflict since the Soviet invasion of Afghanistan in 1979. The defeat of the Taliban has enabled the United States and its coalition partners to send forces throughout Afghanistan to search for Taliban and Al Qaeda fighters and leaders that remain at large, including Osama bin Laden. As the war against remaining Al Qaeda and Taliban elements winds down, the United States is shifting its military focus toward stabilizing the interim government, including training a new Afghan national army, and supporting the international security force (ISAF) that is helping the new government provide security.
Date:
December 28, 2004
Creator:
Katzman, Kenneth
Object Type:
Report
System:
The UNT Digital Library
Aging and Phase Stability of Waste Package Outer Barrier
This report was prepared in accordance with ''Technical Work Plan for: Regulatory Integration Modeling and Analysis of the Waste Form and Waste Package'' (BSC 2004 [DIRS 171583]). This report provides information on the phase stability of Alloy 22, the current waste package outer barrier material. The goal of this model is to determine whether the single-phase solid solution is stable under repository conditions and, if not, how fast other phases may precipitate. The aging and phase stability model, which is based on fundamental thermodynamic and kinetic concepts and principles, will be used to provide predictive insight into the long-term metallurgical stability of Alloy 22 under relevant repository conditions. The results of this model are used by ''General Corrosion and Localized Corrosion of Waste Package Outer Barrier'' as reference-only information. These phase stability studies are currently divided into three general areas: Tetrahedrally close-packed (TCP) phase and carbide precipitation in the base metal; TCP and carbide precipitation in welded samples; and Long-range ordering reactions. TCP-phase and carbide precipitates that form in Alloy 22 are generally rich in chromium (Cr) and/or molybdenum (Mo) (Raghavan et al. 1984 [DIRS 154707]). Because these elements are responsible for the high corrosion resistance of Alloy 22, precipitation …
Date:
September 28, 2004
Creator:
Wong, F.
Object Type:
Report
System:
The UNT Digital Library
AIDS in Africa
Sub-Saharan Africa has been far more severely affected by AIDS than any other part of the world. The United Nations reports that 26.6 million adults and children are infected with the HIV virus in the region, which has about 10% of the world's population but more than two-thirds of the worldwide total of infected people. This report discusses this issue in detail, including the cause of the African AIDS epidemic, the social and economic consequences, response and treatment, and U.S. policy.
Date:
May 28, 2004
Creator:
Copson, Raymond W.
Object Type:
Report
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 129, No. 22, Ed. 1 Thursday, October 28, 2004
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
October 28, 2004
Creator:
Lucas, Melinda L.
Object Type:
Newspaper
System:
The Portal to Texas History
Altus Times (Altus, Okla.), Vol. 105, No. 271, Ed. 1 Wednesday, January 28, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 28, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 105, No. 322, Ed. 1 Sunday, March 28, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
March 28, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 106, No. 24, Ed. 1 Wednesday, April 28, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 28, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 106, No. 50, Ed. 1 Friday, May 28, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 28, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 106, No. 76, Ed. 1 Monday, June 28, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 28, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 106, No. 102, Ed. 1 Wednesday, July 28, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 28, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 106, No. 154, Ed. 1 Tuesday, September 28, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 28, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 106, No. 180, Ed. 1 Thursday, October 28, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 28, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 106, No. 199, Ed. 1 Sunday, November 28, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 28, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 106, No. 225, Ed. 1 Tuesday, December 28, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 28, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, April 28, 2004
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
April 28, 2004
Creator:
Schwind, Jim & Looby, Edward
Object Type:
Newspaper
System:
The Portal to Texas History
The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, January 28, 2004
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
January 28, 2004
Creator:
Schwind, Jim & Looby, Edward
Object Type:
Newspaper
System:
The Portal to Texas History
The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, July 28, 2004
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
July 28, 2004
Creator:
Schwind, Jim & Looby, Edward
Object Type:
Newspaper
System:
The Portal to Texas History
Alvin Sun-Advertiser (Alvin, Tex.), Vol. 114, No. 25, Ed. 1 Sunday, March 28, 2004
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
March 28, 2004
Creator:
Schwind, Jim & Looby, Edward
Object Type:
Newspaper
System:
The Portal to Texas History