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408 Matching Results
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Advancing the Frontiers in Nanocatalysis, Biointerfaces, and Renewable Energy Conversion by Innovations of Surface Techniques
The challenge of chemistry in the 21st century is to achieve 100% selectivity of the desired product molecule in multipath reactions ('green chemistry') and develop renewable energy based processes. Surface chemistry and catalysis play key roles in this enterprise. Development of in situ surface techniques such as high-pressure scanning tunneling microscopy, sum frequency generation (SFG) vibrational spectroscopy, time-resolved Fourier transform infrared methods, and ambient pressure X-ray photoelectron spectroscopy enabled the rapid advancement of three fields: nanocatalysts, biointerfaces, and renewable energy conversion chemistry. In materials nanoscience, synthetic methods have been developed to produce monodisperse metal and oxide nanoparticles (NPs) in the 0.8-10 nm range with controlled shape, oxidation states, and composition; these NPs can be used as selective catalysts since chemical selectivity appears to be dependent on all of these experimental parameters. New spectroscopic and microscopic techniques have been developed that operate under reaction conditions and reveal the dynamic change of molecular structure of catalysts and adsorbed molecules as the reactions proceed with changes in reaction intermediates, catalyst composition, and oxidation states. SFG vibrational spectroscopy detects amino acids, peptides, and proteins adsorbed at hydrophobic and hydrophilic interfaces and monitors the change of surface structure and interactions with coadsorbed water. Exothermic reactions …
Date:
July 23, 2009
Creator:
Somorjai, G. A.; Frei, H. & Park, J. Y.
Object Type:
Article
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 134, No. 9, Ed. 1 Thursday, July 23, 2009
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
July 23, 2009
Creator:
Lucas, Melinda L.
Object Type:
Newspaper
System:
The Portal to Texas History
The Altus Times (Altus, Okla.), Vol. 111, No. 271, Ed. 1 Thursday, July 23, 2009
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 23, 2009
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Archer County News (Archer City, Tex.), No. 30, Ed. 1 Thursday, July 23, 2009
Weekly newspaper from Archer City, Texas that includes local, state, and national news along with advertising.
Date:
July 23, 2009
Creator:
Lewis, Shelley
Object Type:
Newspaper
System:
The Portal to Texas History
ATGC: a database of orthologous genes from closely related prokaryotic genomes and a research platform for microevolution of prokaryotes
The database of Alignable Tight Genomic Clusters (ATGCs) consists of closely related genomes of archaea and bacteria, and is a resource for research into prokaryotic microevolution. Construction of a data set with appropriate characteristics is a major hurdle for this type of studies. With the current rate of genome sequencing, it is difficult to follow the progress of the field and to determine which of the available genome sets meet the requirements of a given research project, in particular, with respect to the minimum and maximum levels of similarity between the included genomes. Additionally, extraction of specific content, such as genomic alignments or families of orthologs, from a selected set of genomes is a complicated and time-consuming process. The database addresses these problems by providing an intuitive and efficient web interface to browse precomputed ATGCs, select appropriate ones and access ATGC-derived data such as multiple alignments of orthologous proteins, matrices of pairwise intergenomic distances based on genome-wide analysis of synonymous and nonsynonymous substitution rates and others. The ATGC database will be regularly updated following new releases of the NCBI RefSeq. The database is hosted by the Genomics Division at Lawrence Berkeley National laboratory and is publicly available at http://atgc.lbl.gov.
Date:
July 23, 2009
Creator:
Novichkov, Pavel S.; Ratnere, Igor; Wolf, Yuri I.; Koonin, Eugene V. & Dubchak, Inna
Object Type:
Article
System:
The UNT Digital Library
The Bastrop Advertiser (Bastrop, Tex.), Vol. 156, No. 41, Ed. 1 Thursday, July 23, 2009
Semi-weekly newspaper from Bastrop, Texas that includes local, state and national news along with advertising.
Date:
July 23, 2009
Creator:
Wright, Cyndi
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 89, No. 204, Ed. 1 Thursday, July 23, 2009
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
July 23, 2009
Creator:
Clements, Clifford E.
Object Type:
Newspaper
System:
The Portal to Texas History
The Canadian Record (Canadian, Tex.), Vol. 119, No. 30, Ed. 1 Thursday, July 23, 2009
Weekly newspaper from Canadian, Texas that includes local, state and national news along with some advertising.
Date:
July 23, 2009
Creator:
Brown, Laurie Ezzell
Object Type:
Newspaper
System:
The Portal to Texas History
Capitol Visitor Center: Construction Expected to Be Completed within Current Budget Estimate
Testimony issued by the Government Accountability Office with an abstract that begins "This testimony focuses on (1) the Architect of the Capitol's (AOC) construction progress since the last Capitol Visitor Center (CVC) hearing on September 24, 2008, and (2) the project's expected cost at completion and funding status. Today's remarks are based on our review of schedules and financial reports for the CVC project and related records maintained by AOC and its construction management contractor, Gilbane Building Company; our observations on the progress of work at the CVC; and our discussions with AOC."
Date:
July 23, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
The Changing U.S.-Japan Alliance: Implications for U.S. Interests
This report examines policy changes that have driven actual and proposed shifts in the alliance between the U.S. and Japan. Key features of the proposals include a reduction in the number of U.S. Marines in Japan, the relocation of a controversial Marine air base in Okinawa, expanded cooperation in training and intelligence sharing, and command structure changes.
Date:
July 23, 2009
Creator:
Chanlett-Avery, Emma & Konishi, Weston S.
Object Type:
Report
System:
The UNT Digital Library
Charge and Spin Transport in Dilute Magnetic Semiconductors
This proposal to the DOE outlines a three-year plan of research in theoretical and computational condensed-matter physics, with the aim of developing a microscopic theory for charge and spin dynamics in disordered materials with magnetic impurities. Important representatives of this class of materials are the dilute magnetic semiconductors (DMS), which have attracted great attention as a promising basis for spintronics devices. There is an intense experimental effort underway to study the transport properties of ferromagnetic DMS such as (Ga,Mn)As, and a number of interesting features have emerged: negative magnetoresistance, anomalous Hall effect, non-Drude dynamical conductivity, and resistivity maxima at the Curie temperature. Available theories have been able to account for some of these features, but at present we are still far away from a systematic microscopic understanding of transport in DMS. We propose to address this challenge by developing a theory of charge and spin dynamics based on a combination of the memory-function formalism and time-dependent density functional theory. This approach will be capable of dealing with two important issues: (a) the strong degree of correlated disorder in DMS, close to the localization transition (which invalidates the usual relaxation-time approximation to the Boltzmann equation), (b) the essentially unknown role of …
Date:
July 23, 2009
Creator:
Ullrich, Carsten A.
Object Type:
Report
System:
The UNT Digital Library
Coast Guard Polar Icebreaker Modernization: Background, Issues, and Options for Congress
This report discusses background, issues, and options for Congress related to Coast Guard Polar Icebreaker modernization.
Date:
July 23, 2009
Creator:
O'Rourke, Ronald
Object Type:
Report
System:
The UNT Digital Library
Cooper Review (Cooper, Tex.), Vol. 129, No. 30, Ed. 1 Thursday, July 23, 2009
Weekly newspaper from Cooper, Texas that includes local, state, and national news along with advertising.
Date:
July 23, 2009
Creator:
Palmer, Roger
Object Type:
Newspaper
System:
The Portal to Texas History
Development of custom fire behavior fuel models from FCCS fuelbeds for the Savannah River fuel assessment project.
The purpose of this project is to create fire behavior fuel models that replicate the fire behavior characteristics (spread rate and fireline intensity) produced by 23 candidate FCCS fuelbeds developed for the Savannah River National Wildlife Refuge. These 23 fuelbeds were created by FERA staff in consultation with local fuel managers. The FCCS produces simulations of surface fire spread rate and flame length (and therefore fireline intensity) for each of these fuelbeds, but it does not produce maps of those fire behavior characteristics or simulate fire growth—those tasks currently require the use of the FARSITE and/or FlamMap software systems. FARSITE and FlamMap do not directly use FCCS fuelbeds, but instead use standard or custom fire behavior fuel models to describe surface fuel characteristics for fire modeling. Therefore, replicating fire growth and fire behavior potential calculations using FCCS‐simulated fire characteristics requires the development of custom fuel models that mimic, as closely as possible, the fire behavior characteristics produced by the FCCS for each fuelbed, over a range of fuel moisture and wind speeds.
Date:
July 23, 2009
Creator:
Scott, Joe, H.
Object Type:
Report
System:
The UNT Digital Library
District of Columbia Public Schools: Implementation and Sustainability of Reform Efforts Could Benefit From Enhanced Planning
Testimony issued by the Government Accountability Office with an abstract that begins "This testimony presents information on the District of Columbia's (D.C. or the District) progress in reforming its public school system. The District's school system has had long-standing problems with student academic performance, the condition of school facilities, and its overall management. The District's public schools have fallen well behind the District's own targets for demonstrating adequate yearly progress toward meeting the congressionally mandated goal of having 100 percent of students proficient in math, reading, and science by 2014, as outlined in the Elementary and Secondary Education Act of 1965, as amended by the No Child Left Behind Act (NCLBA). In addition, the U. S. Department of Education (Education) designated the District as a high-risk grantee in April 2006 because of its poor management of federal grants. Of the nearly $762 million the District spends on D. C. public schools (DCPS), 16 percent comes from federal sources. In an effort to address the school system's long-standing problems, the Council of the District of Columbia (D.C. Council) approved the Public Education Reform Amendment Act of 2007 (Reform Act), which made major changes to the operations and governance of the school …
Date:
July 23, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
The Dublin Citizen (Dublin, Tex.), Vol. 19, No. 47, Ed. 1 Thursday, July 23, 2009
Weekly newspaper from Dublin, Texas that includes local, state, and national news along with advertising.
Date:
July 23, 2009
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Electra Star-News (Electra, Tex.), Vol. 103, No. 50, Ed. 1 Thursday, July 23, 2009
Weekly newspaper from Electra, Texas that includes local, state, and national news along with advertising.
Date:
July 23, 2009
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Express-Star (Chickasha, Okla.), Ed. 1 Thursday, July 23, 2009
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 23, 2009
Creator:
Pittman, Jerry & Wray, Kelly
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Federal Air Marshal Service: Actions Taken to Fulfill Core Mission and Address Workforce Issues
Testimony issued by the Government Accountability Office with an abstract that begins "By deploying armed air marshals onboard selected flights, the Federal Air Marshal Service (FAMS), a component of the Transportation Security Administration (TSA), plays a key role in helping to protect approximately 29,000 domestic and international flights operated daily by U.S. air carriers. This testimony discusses (1) FAMS's operational approach or "concept of operations" for covering flights, (2) an independent evaluation of the operational approach, and (3) FAMS's processes and initiatives for addressing workforce-related issues. Also, this testimony provides a list of possible oversight issues related to FAMS. This testimony is based on GAO's January 2009 report (GAO-09-273), with selected updates in July 2009. For its 2009 report, GAO analyzed policies and procedures regarding FAMS's operational approach and a July 2006 classified assessment of that approach. Also, GAO analyzed employee working group reports and related FAMS's initiatives for addressing workforce-related issues, and interviewed FAMS headquarters officials and 67 air marshals (selected to reflect a range in levels of experience)."
Date:
July 23, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Garber Billings News (Garber, Okla.), Vol. 109, No. 38, Ed. 1 Thursday, July 23, 2009
Weekly newspaper from Garber, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 23, 2009
Creator:
Hogan, Vickie Lee
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Greensheet (Arlington-Grand Prairie, Tex.), Vol. 33, No. 108, Ed. 1 Thursday, July 23, 2009
Free weekly newspaper that includes business and classified advertising.
Date:
July 23, 2009
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Austin, Tex.), Vol. 32, No. 24, Ed. 1 Thursday, July 23, 2009
Free weekly newspaper that includes business and classified advertising.
Date:
July 23, 2009
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Fort Worth, Tex.), Vol. 33, No. 109, Ed. 1 Thursday, July 23, 2009
Free weekly newspaper that includes business and classified advertising.
Date:
July 23, 2009
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Fort Worth, Tex.), Vol. 33, No. 110, Ed. 1 Thursday, July 23, 2009
Free weekly newspaper that includes business and classified advertising.
Date:
July 23, 2009
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History