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362 Matching Results
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Genome-Wide Identification and 3D Modeling of Proteins involved in DNA Damage Recognition and Repair (Final Report)
DNA Damage Recognition and Repair (DDR&R) proteins play a critical role in cellular responses to low-dose radiation and are associated with cancer. We have performed a systematic, genome-wide computational analysis of genomic data for human genes involved in the DDR&R process. The significant achievements of this project include: 1) Construction of the computational pipeline for searching DDR&R genes, building and validation of 3D models of proteins involved in DDR&R; 2) Functional and structural annotation of the 3D models and generation of comprehensive lists of suggested knock-out mutations; and the development of a method to predict the effects of mutations. Large scale testing of technology to identify novel small binding pockets in protein structures leading to new DDRR inhibitor strategies 3) Improvements of macromolecular docking technology (see the CAPRI 1-3 and 4-5 results) 4) Development of a new algorithm for improved analysis of high-density oligonucleotide arrays for gene expression profiling; 5) Construction and maintenance of the DNA Damage Recognition and Repair Database; 6) Producing 15 research papers (12 published and 3 in preparation).
Date:
August 12, 2005
Creator:
Abagyan, Ruben & An, Jianghong
Object Type:
Report
System:
The UNT Digital Library
Electricity: The Road Toward Restructuring
The Public Utility Holding Company Act of 1935 (PUHCA) and the Federal Power Act (FPA) were enacted to eliminate unfair practices and other abuses by electricity and gas holding companies by requiring federal control and regulation of interstate public utility holding companies. Comprehensive energy legislation has passed the House and Senate. The House passed H.R. 6 on April 11, 2003. On July 31, 2003, the Senate suspended debate on S. 14, inserted the text of H.R. 4 (107th Congress) as a substitute, and passed H.R. 6. A conference agreement was reached November 17, 2003, and passed by the House the next day. H.R. 6 includes an electricity title that would, in part, repeal PUHCA, would prospectively repeal the mandatory purchase requirement under PURPA, and would create an electric reliability organization. On June 15, 2004, H.R. 4503, a comprehensive energy policy bill, passed the House.
Date:
August 12, 2003
Creator:
Abel, Amy & Parker, Larry
Object Type:
Report
System:
The UNT Digital Library
A Computer Generated Reduced Iso-Octane Chemical Kinetic Mechanism Applied to Simulation of HCCI Combustion
This paper shows how a computer can systematically remove non-essential chemical reactions from a large chemical kinetic mechanism. The computer removes the reactions based upon a single solution using a detailed mechanism. The resulting reduced chemical mechanism produces similar numerical predictions significantly faster than predictions that use the detailed mechanism. Specifically, a reduced chemical kinetics mechanism for iso-octane has been derived from a detailed mechanism by eliminating unimportant reaction steps and species. The reduced mechanism has been developed for the specific purpose of fast and accurate prediction of ignition timing in an HCCI engine. The reduced mechanism contains 199 species and 383 reactions, while the detailed mechanism contains 859 species and 3606 reactions. Both mechanisms have been used in numerical simulation of HCCI combustion. The simulations show that the reduced mechanism predicts pressure traces and heat release with good accuracy, similar to the accuracy obtained with the detailed mechanism. As may be expected, emissions of hydrocarbon and carbon monoxide are not as well predicted with the reduced mechanism as with the detailed mechanism, since the reduced mechanism was targeted for predicting HCCI ignition and not HC and CO emissions. Considering that the reduced mechanism requires about 25 times less computational …
Date:
August 12, 2002
Creator:
Aceves, S. M.; Martinez-Frias, J.; Flowers, D.; Smith, J. R.; Dibble, R. & Chen, J. Y.
Object Type:
Article
System:
The UNT Digital Library
Timpson & Tenaha News (Timpson, Tex.), Vol. 19, No. 31, Ed. 1 Thursday, August 12, 2004
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
August 12, 2004
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Higher temperature reactor materials workshop sponsored by the Department of Energy Office of Nuclear Energy, Science, and Technology (NE) and the Office of Basic Energy Sciences (BES).
On March 18-21, 2002, the Department of Energy, Office of Nuclear Energy, Science, and Technology (NE) and the Office of Basic Energy Sciences (BES) sponsored a workshop to identify needs and opportunities for materials research aimed at performance improvements of structural materials in higher temperature reactors. The workshop focused discussion around the reactor concepts proposed as part of the Generation IV Nuclear Energy System Roadmap. The goal of the Generation IV initiative is to make revolutionary improvements in nuclear energy system design in the areas of sustainability, economics, safety and reliability. The Generation IV Nuclear Energy Systems Roadmap working groups have identified operation at higher temperature as an important step in improving economic performance and providing a means for nuclear energy to support thermochemical production of hydrogen. However, the move to higher operating temperatures will require the development and qualification of advanced materials to perform in the more challenging environment. As part of the process of developing advanced materials for these reactor concepts, a fundamental understanding of materials behavior must be established and the data-base defining critical performance limitations of these materials under irradiation must be developed. This workshop reviewed potential reactor designs and operating regimes, potential materials for application …
Date:
August 12, 2002
Creator:
Allen, T.; Bruemmer, S.; Kassner, M.; Odette, R.; Stoller, R.; Was, G. et al.
Object Type:
Report
System:
The UNT Digital Library
Summary of the Environmental Radiological Monitoring Program at Lawrence Livermore National Laboratory
None
Date:
August 12, 2004
Creator:
Althouse, P E
Object Type:
Report
System:
The UNT Digital Library
Pulse Compression Via Velocity Bunching with the LLNL Thomson X-ray Source Photoinjector
We report the compression of a high brightness, relativistic electron beam to rms lengths below 300 femtoseconds using the velocity compression technique in the LLNL Thomson X-ray source photoinjector. The results are consistent with analytical and computational models of this process. The emittance evolution of the beam during compression is investigated in simulation and found to be controllable with solenoid focusing.
Date:
August 12, 2003
Creator:
Anderson, S G; Brown, W J; Tremaine, A M; Musumeci, P & Rosenzweig, J B
Object Type:
Article
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 105, No. 127, Ed. 1 Tuesday, August 12, 2003
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 12, 2003
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 106, No. 114, Ed. 1 Thursday, August 12, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 12, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 113, Ed. 1 Friday, August 12, 2005
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 12, 2005
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
LHC Symposium 2003: Summary Talk
This summary talk reviews the LHC 2003 Symposium, focusing on expectations as we prepare to leap over the current energy frontier into new territory. We may learn from what happened in the two most recent examples of leaping into new energy territory. Quite different scenarios appeared in those two cases. In addition, they review the status of the machine and experiments as reported at the Symposium. Finally, I suggest an attitude which may be most appropriate as they look forward to the opportunities anticipated for the first data from the LHC.
Date:
August 12, 2003
Creator:
Appel, Jeffrey A.
Object Type:
Article
System:
The UNT Digital Library
Atmospheric Radiation Measurement Program Facilities Newsletter, July 2002.
Monthly newsletter discussing news and activities related to the Atmospheric Radiation Measurement Program, articles about weather and atmospheric phenomena, and other related topics.
Date:
August 12, 2002
Creator:
Atmospheric Radiation Measurement Program (U.S.)
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Construction of Superconvergent Discretizations with Differential-Difference Invariants
To incorporate symmetry properties of second-order differential equations into finite difference equations, the concept of differential-difference invariants is introduced. This concept is applied to discretizing homogeneous eigenvalue problems and inhomogeneous two-point boundary value problems with various combinations of Dirichlet, Neumann, and Robin boundary conditions. It is demonstrated that discretizations constructed with differential-difference invariants yield exact results for eigenvalue spectra and superconvergent results for numerical solutions of differential equations.
Date:
August 12, 2005
Creator:
Axford, R. A.
Object Type:
Report
System:
The UNT Digital Library
PROPOSED SIAM PROBLEM
A recent paper by the present authors, together with mathematical physicists David Broadhurst and M. Larry Glasser, explored Bessel moment integrals, namely definite integrals of the general form {integral}{sub 0}{sup {infinity}} t{sup m}f{sup n}(t) dt, where the function f(t) is one of the classical Bessel functions. In that paper, numerous previously unknown analytic evaluations were obtained, using a combination of analytic methods together with some fairly high-powered numerical computations, often performed on highly parallel computers. In several instances, while we were able to numerically discover what appears to be a solid analytic identity, based on extremely high-precision numerical computations, we were unable to find a rigorous proof. Thus we present here a brief list of some of these unproven but numerically confirmed identities.
Date:
August 12, 2008
Creator:
BAILEY, DAVID H. & BORWEIN, JONATHAN M.
Object Type:
Report
System:
The UNT Digital Library
Adaptive compensation of atmospheric turbulence utilizing an interferometric wave-front sensor and a high-resolution MEMS-based spatial light modulator
Horizontal path correction of optical beam propagation presents a severe challenge to adaptive optics systems due to the short transverse coherence length and the high degree of scintillation incurred by propagation along these paths. The system presented operates with nearly monochromatic light. It does not require a global reconstruction of the phase, thereby eliminating issues with branch points and making its performance relatively unaffected by scintillation. The systems pixel count, 1024, and relatively high correction speed, in excess of 800 Hz, enable its use for correction of horizontal path beam propagation. We present results from laboratory and field tests of the system in which we have achieved Strehl ratios greater than 0.5.
Date:
August 12, 2004
Creator:
Baker, K.; Stappaerts, E.; Gavel, D.; Tucker, J.; Silva, D.; Wilks, S. et al.
Object Type:
Article
System:
The UNT Digital Library
SEISMIC EVALUATION OF HYDROCARBON SATURATION IN DEEP-WATER RESERVOIRS
We are now entering the final stages of our ''Seismic Evaluation of Hydrocarbon Saturation in Deep-Water Reservoirs'' project (Grant/Cooperative Agreement DE-FC26-02NT15342). We have now developed several techniques to help distinguish economic hydrocarbon deposits from false ''Fizz'' gas signatures. These methods include using the proper in situ rock and fluid properties, evaluating interference effects on data, and doing better constrained inversions for saturations. We are testing these techniques now on seismic data from several locations in the Gulf of Mexico. In addition, we are examining the use of seismic attenuation as indicated by frequency shifts below potential reservoirs. During this quarter we have: Began our evaluation of our latest data set over the Neptune Field; Developed software for computing composite reflection coefficients; Designed and implemented stochastic turbidite reservoir models; Produced software & work flow to improve frequency-dependent AVO analysis; Developed improved AVO analysis for data with low signal-to-noise ratio; and Examined feasibility of detecting fizz gas using frequency attenuation. Our focus on technology transfer continues, both by generating numerous presentations for the upcoming SEG annual meeting, and by beginning our planning for our next DHI minisymposium next spring.
Date:
August 12, 2005
Creator:
Batzle, Michael; Han, D-h; Gibson, R. & James, Huw
Object Type:
Report
System:
The UNT Digital Library
Emergency Management Preparedness Standards: Overview and Options for Congress
This report provides Emergency an Overview and Options for Congress on Emergency Management Preparedness Standards which includes major recommendations like adoption and use of emergency response standards, mutual aid provisions, private sector preparedness.
Date:
August 12, 2004
Creator:
Bea, Keith
Object Type:
Report
System:
The UNT Digital Library
The Grandview Tribune (Grandview, Tex.), Vol. 110, No. 48, Ed. 1 Friday, August 12, 2005
Weekly newspaper from Grandview, Texas that includes local, state, and national news along with advertising.
Date:
August 12, 2005
Creator:
Beck-Adams, Candie
Object Type:
Newspaper
System:
The Portal to Texas History
Horse Slaughter Prevention Bills and Issues
In 2006 two Texas plants and one in Illinois slaughtered nearly 105,000 horses for human food, mainly for European and Asian consumers. In 2007, court action effectively closed the Texas plants, and a new state ban in Illinois closed the plant. Meanwhile, activists have continued to press for legislative bans appropriated funds and user fees for inspection of horses for human food.
Date:
August 12, 2008
Creator:
Becker, Geoffrey S.
Object Type:
Report
System:
The UNT Digital Library
Ordering Process in Complex Magnetic Systems - Progress Report for 2005
Progress report for 2005.
Date:
August 12, 2005
Creator:
Belanger, David P
Object Type:
Report
System:
The UNT Digital Library
SIMS: The SLAC Industrial Measurement System
The development of electronic sensors and of small powerful computers, and their integration together have led to the development of what has come to be known as Industrial Measurement Technology (IMT). Industrial Measurement Systems feature one or more electronic sensors and a computer with powerful software. The software has three essential components: data collection, data reduction and data analysis. In the field of industrial surveying, the IMT system is the automated theodolite system, but other systems such as the laser tracker are on the horizon.
Date:
August 12, 2005
Creator:
Bell, B.
Object Type:
Report
System:
The UNT Digital Library
Afghanistan: Narcotics and U.S. Policy
This report provides current statistical information, profiles the Afghanistan narcotics trade's participants, explores linkages between narcotics, insecurity, and corruption, and reviews U.S. and international policy responses since late 2001. The report also considers ongoing policy debates regarding the counternarcotics role of coalition military forces, poppy eradication, alternative livelihoods, and funding issues for Congress.
Date:
August 12, 2009
Creator:
Blanchard, Christopher M.
Object Type:
Report
System:
The UNT Digital Library
United Nations System Efforts to Address Violence Against Women
This report provides an overview of recent U.N. efforts to address violence against women (VAW) and highlights key U.N. interagency efforts. It also discusses selected U.N. funds, programs, and agencies that address international violence against women. It does not assess the extent to which VAW is directly addressed or is part of a larger initiative or program.
Date:
August 12, 2008
Creator:
Blanchfield, Luisa
Object Type:
Report
System:
The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 87, No. 284, Ed. 1 Monday, August 12, 2002
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 12, 2002
Creator:
Broaddus, Matthew B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History