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2004 Sensory Transduction in Microorganisms Gordon Research Conference-January 11-16, 2004
Research into the mechanisms involved in the sensing and responses of microorganisms to changes in their environment is currently very active in a large number of laboratories in the US, Europe, Japan, and Israel. A wide range of eukaryotic and prokaryotic species are being studies with regard to their sensing of chemical changes, light and redox signal and intercellular signaling, leading either to changes in motile behavior, gene expression or development. It has become increasingly apparent that the mechanisms involved in development have application in higher organisms while the sensing systems in bacteria are involved in a very wide range of physiological traits, from pathogenicity, through to biofilm formation. This is an area where a wide range of state of the art tools have been used and developed over the past few decades. Approaches include behavioral studies, electro-physiology, genetics, molecular biology, structural biology, biophysics and single molecule microscopy, immunocytochemistry and molecular and mathematical modeling, all of this helped by the large number of bacterial and eukaryotic microbial genome sequences now available. The central goal of this meeting is to bring together investigators using this wide range of approaches and different systems to compare data, share ideas and approaches and seeks …
Date:
January 7, 2005
Creator:
Storm, Judith Armitage Carlyle
Object Type:
Article
System:
The UNT Digital Library
Access to Government Information In the United States
The Constitution of the United States makes no specific allowance for any one of the co-equal branches to have access to information held by the others and contains no provision expressly establishing a procedure for, or a right of, public access to government information. Nonetheless, Congress has legislated various public access laws. These include two records access statutes — the Freedom of Information Act and the Privacy Act — and two meetings access statutes — the Federal Advisory Committee Act and the Government in the Sunshine Act. This report provides background on the issue of government transparency.
Date:
January 7, 2005
Creator:
Relyea, Harold C.
Object Type:
Report
System:
The UNT Digital Library
Access to Government Information in the United States
The Constitution of the United States makes no specific allowance for any one of the co-equal branches to have access to information held by the others and contains no provision expressly establishing a procedure for, or a right of, public access to government information. Nonetheless, Congress has legislated various public access laws. These include two records access statutes — the Freedom of Information Act (5 U.S.C. 552) and the Privacy Act (5 U.S.C. 552a) — and two meetings access statutes — the Federal Advisory Committee Act (5 U.S.C. App.) and the Government in the Sunshine Act (5 U.S.C. 552b). Moreover, due to the American separation of powers model of government, interbranch conflicts over the accessibility of information are neither unexpected nor necessarily destructive. The federal courts, historically, have been reluctant to review and resolve “political questions” involving information disputes between Congress and the executive branch. Although there is considerable interbranch cooperation, such conflicts probably will continue to occur on occasion.
Date:
January 7, 2005
Creator:
Relyea, Harold C.
Object Type:
Report
System:
The UNT Digital Library
Alternative Transportation Fuels and Vehicles: Energy, Environment, and Development Issues
This report reviews several issues relating to alternative fuels and vehicles, mainly to combat dependence on petroleum imports and reduce greenhouse gas emissions. The report discusses the advantages and drawbacks of various alternative fuels and vehicles, as well as related legislation.
Date:
January 7, 2005
Creator:
Yacobucci, Brent D.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 106, No. 234, Ed. 1 Friday, January 7, 2005
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 7, 2005
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Application Process for Seeking 501(c)(3) Tax-Exempt Status
Charities and other entities seeking tax-exempt status as 501(c)(3) organizations generally must apply to the Internal Revenue Service. This report provides an overview of the application process.
Date:
January 7, 2005
Creator:
Lunder, Erika
Object Type:
Report
System:
The UNT Digital Library
Arc Flash Boundary Calculations Using Computer Software Tools
Arc Flash Protection boundary calculations have become easier to perform with the availability of personal computer software. These programs incorporate arc flash protection boundary formulas for different voltage and current levels, calculate the bolted fault current at each bus, and use built in time-current coordination curves to determine the clearing time of protective devices in the system. Results of the arc flash protection boundary calculations can be presented in several different forms--as an annotation to the one-line diagram, as a table of arc flash protection boundary distances, and as printed placards to be attached to the appropriate equipment. Basic arc flash protection boundary principles are presented in this paper along with several helpful suggestions for performing arc flash protection boundary calculations.
Date:
January 7, 2005
Creator:
Gibbs, M. D.
Object Type:
Article
System:
The UNT Digital Library
Arms Control and Nonproliferation Activities: A Catalog of Recent Events
This report contains brief descriptions of the most prominent arms control and nonproliferation efforts in which the United States has participated during recent years. The entries describe the substance of each arms control effort, the period in which the effort occurred, and the status of the effort at the end of 2004.
Date:
January 7, 2005
Creator:
Woolf, Amy F.
Object Type:
Report
System:
The UNT Digital Library
Averaging of Stochastic Equations for Flow and Transport in PorousMedia
It is well known that at present exact averaging of theequations of flow and transport in random porous media have been realizedfor only a small number of special fields. Moreover, the approximateaveraging methods are not yet fully understood. For example, theconvergence behavior and the accuracy of truncated perturbation seriesare not well known; and in addition, the calculation of the high-orderperturbations is very complicated. These problems for a long time havestimulated attempts to find the answer for the question: Are there inexistence some exact general and sufficiently universal forms of averagedequations? If the answer is positive, there arises the problem of theconstruction of these equations and analyzing them. There are manypublications on different applications of this problem to various fields,including: Hydrodynamics, flow and transport in porous media, theory ofelasticity, acoustic and electromagnetic waves in random fields, etc.Here, we present a method of finding some general form of exactlyaveraged equations for flow and transport in random fields by using (1)some general properties of the Green s functions for appropriatestochastic problems, and (2) some basic information about the randomfields of the conductivity, porosity and flow velocity. We presentgeneral forms of exactly averaged non-local equations for the followingcases: (1) steady-state flow with sources in …
Date:
January 7, 2005
Creator:
Shvidler, Mark & Karasaki, Kenzi
Object Type:
Article
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 84, No. 33, Ed. 1 Friday, January 7, 2005
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
January 7, 2005
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
Boerne Star & Hill Country Recorder (Boerne, Tex.), Vol. 98, No. 95, Ed. 1 Friday, January 7, 2005
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
January 7, 2005
Creator:
Watson, Steven G.
Object Type:
Newspaper
System:
The Portal to Texas History
Brady Standard-Herald and Heart O' Texas News (Brady, Tex.), Ed. 1 Friday, January 7, 2005
Semiweekly newspaper from Brady, Texas that includes local, state, and national news along with advertising.
Date:
January 7, 2005
Creator:
Stewart, James E.
Object Type:
Newspaper
System:
The Portal to Texas History
Central Asia’s Security: Issues and Implications for U.S. Interests
This report discusses the Central Asian States that faces common security challenges from crime, corruption, terrorism, and faltering commitments to economic and democratic reforms. It also points out the internal political developments in several bordering or close-by states that may have a large impact on Central Asian Security.
Date:
January 7, 2005
Creator:
Nichol, Jim
Object Type:
Report
System:
The UNT Digital Library
Circular A-76 Revision 2003: Selected Issues
Office of Management and Budget (OMB) Circular A-76,1 which was first issued in 1966, provides guidance for federal agencies to use in determining who — government agency or private business — will perform commercial activities.2 Circular A-76 and the Circular No. A-76 Revised Supplemental Handbook have been modified over the years. The handbook expanded upon Circular A-76 policy and provided guidance for conducting cost comparisons. Key changes include the initial publication of the handbook in 1979; the incorporation of the language of government reinvention in 1996; and the implementation of the Federal Activities Inventory Reform Act (FAIR) of 1998 in 1999.
Date:
January 7, 2005
Creator:
Halchin, L. Elaine
Object Type:
Report
System:
The UNT Digital Library
The Clifton Record (Clifton, Tex.), Vol. 110, No. 1, Ed. 1 Friday, January 7, 2005
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
January 7, 2005
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
Continuity of Government: Current Federal Arrangements and the Future
Continuity of government refers to the continued functioning of constitutional government under all circumstances. Arrangements for the continued operation of the federal government in the event of a national emergency or catastrophe are specified in law, policy, and plans, some of which are not public information, given their sensitive, contingent status. This report reviews the public record concerning federal continuity of government arrangements.
Date:
January 7, 2005
Creator:
Relyea, Harold C.
Object Type:
Report
System:
The UNT Digital Library
Dairy Policy Issues
Several dairy issues that were debated during the 108th Congress are expected to continue as issues of interest in the 109th Congress. Separate bills were introduced in the 108th Congress to extend authority for both the Milk Income Loss Contract (MILC) Program and the dairy forward pricing pilot program, and to address dairy producer concerns about the importation of milk protein concentrates.
Date:
January 7, 2005
Creator:
Chite, Ralph M.
Object Type:
Report
System:
The UNT Digital Library
Dallas Voice (Dallas, Tex.), Vol. 21, No. 35, Ed. 1 Friday, January 7, 2005
Weekly newspaper from Dallas, Texas that includes local, state, and national news and advertising of interest to the Lesbian, Gay, Bisexual, and Transgender (LGBT) community.
Date:
January 7, 2005
Creator:
Vercher, Dennis
Object Type:
Newspaper
System:
The UNT Digital Library
Designer Nanocellular Materials for Laser Targets and Other DNT Applications
Overview. This document and the accompanying manuscripts summarize the technical accomplishments of our one-year LDRD-ER effort, a project that has since been incorporated into a larger LDRD-SI for FY05. The objective of this effort was to develop a predictive synthetic capability for the preparation of materials with cellular architectures (sub-micron pore or cell sizes and relative densities less than 10% of full density) not attainable by conventional methods. The ability to reliably prepare these nanocellular materials and control their bulk physical properties (e.g. mechanical strength) would be a considerable advance in the areas of porous materials and its impact would cut across many existing LLNL investments. One significant area related to the Laboratory mission that would benefit is the design of new materials for high energy density physics (HEDP) targets. Current synthetic techniques do not allow for the preparation of foams that meet all of the current and projected compositional and mechanical requirements of these experiments. This project focused on two main types of materials: inorganic sol-gel materials and nanocellular metal foams. The following sections describe the project goals for these two types of materials as well as the progress made towards these goals in FY04. These sections also provide …
Date:
January 7, 2005
Creator:
Satcher, J. H. Jr.; Hsiung, L. M.; Baumann, T. F.; Maxwell, R. S.; Chinn, S. C.; Hodge, A. M. et al.
Object Type:
Report
System:
The UNT Digital Library
Detailed Chemical Kinetic Modeling of Surrogate Fuels for Gasoline and Application to an HCCI Engine
Gasoline consists of many different classes of hydrocarbons, such as paraffins, olefins, aromatics, and cycloalkanes. In this study, a surrogate gasoline reaction mechanism is developed, and it has one representative fuel constituent from each of these classes. These selected constituents are iso-octane, n-heptane, 1-pentene, toluene, and methyl-cyclohexane. The mechanism was developed in a step-wise fashion, adding submechanisms to treat each fuel component. Reactions important for low temperature oxidation (<1000K) and cross-reactions among different fuels are incorporated into the mechanism. The mechanism consists of 1214 species and 5401 reactions. A single-zone engine model is used to evaluate how well the mechanism captures autoignition behavior for conditions corresponding to homogeneous charge compression ignition (HCCI) engine operation. Experimental data are available for both how the combustion phasing changes with fueling at a constant intake temperature, and also how the intake temperature has to be changed with pressure in order to maintain combustion phasing for a fixed equivalence ratio. Three different surrogate fuel mixtures are used for the modeling. Predictions are in reasonably good agreement with the engine data. In addition, the heat release rate is calculated and compared to the data from experiments. The model predicts less low-temperature heat release than that measured. …
Date:
January 7, 2005
Creator:
Naik, C V; Pitz, W J; Sj?berg, M; Dec, J E; Orme, J; Curran, H J et al.
Object Type:
Article
System:
The UNT Digital Library
Dose Rate Evaluation for Spent Fuel Aging Areas at Yucca Mountain
The spent nuclear fuel (SNF) aging system at the proposed Yucca Mountain repository will provide site-specific casks and aging pads for thermal management of commercial SNF with a heat rate in excess of the waste package thermal output limit. An aging pad can accommodate 1,000 MTHM of SNF, containing a total of 100 aging casks with a horizontal module of 20 casks, and 80 vertical site-specific casks arranged in a 2 x 40 array. The proposed aging system will provide five aging areas in two separate locations. The first location will contain a single pad designated as Aging Area 17A (1,000 MTHM capacity). The second location will contain Aging Areas 17B through 17E (20,000 MTHM total capacity), each consisting of five aging pads arranged in a compact rectangular configuration. This paper presents calculated dose rates as a function of distance from Aging Areas 17A and 17B through 17E. In addition, the paper evaluates the effect of design parameter variations on dose rates with focus on spacing between casks and spacing between pads in Aging Areas 17B through 17E.
Date:
January 7, 2005
Creator:
Radulescu, G. & Su, Shiaw-Der
Object Type:
Report
System:
The UNT Digital Library
An Examination of Avoided Costs in Utah
The Utah Wind Working Group (UWWG) believes there are currently opportunities to encourage wind power development in the state by seeking changes to the avoided cost tariff paid to qualifying facilities (QFs). These opportunities have arisen as a result of a recent renegotiation of Pacificorp's Schedule 37 tariff for wind QFs under 3 MW, as well as an ongoing examination of Pacificorp's Schedule 38 tariff for wind QFs larger than 3 MW. It is expected that decisions made regarding Schedule 38 will also impact Schedule 37. Through the Laboratory Technical Assistance Program (Lab TAP), the UWWG has requested (through the Utah Energy Office) that LBNL provide technical assistance in determining whether an alternative method of calculating avoided costs that has been officially adopted in Idaho would lead to higher QF payments in Utah, and to discuss the pros and cons of this method relative to the methodology recently adopted under Schedule 37 in Utah. To accomplish this scope of work, I begin by summarizing the current method of calculating avoided costs in Utah (per Schedule 37) and Idaho (the ''surrogate avoided resource'' or SAR method). I then compare the two methods both qualitatively and quantitatively. Next I present Pacificorp's four …
Date:
January 7, 2005
Creator:
Bolinger, Mark & Wiser, Ryan
Object Type:
Report
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Friday, January 7, 2005
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 7, 2005
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Fermi level stabilization energy in group III-nitrides
Energetic particle irradiation is used to systematically introduce point defects into In{sub 1-x}Ga{sub x}N alloys over the entire composition range. Three types of energetic particles (electrons, protons, and {sup 4}He{sup +}) are used to produce a displacement damage dose spanning five decades. In InN and In-rich InGaN the free electron concentration increases with increasing irradiation dose but saturates at a sufficiently high dose. The saturation is due to Fermi level pinning at the Fermi Stabilization Energy (E{sub FS}), which is located at 4.9 eV below the vacuum level. Electrochemical capacitance-voltage (ECV) measurements show that the pinning of the surface Fermi energy at E{sub FS} is also responsible for the surface electron accumulation in as-grown InN and In-rich InGaN alloys. The results are in agreement with the amphoteric defect model that predicts that the same type of native defects are responsible for the Fermi level pinning in both cases.
Date:
January 7, 2005
Creator:
Li, S. X.; Yu, K. M.; Wu, J.; Jones, R. E.; Walukiewicz, W.; AgerIII, J. W. et al.
Object Type:
Article
System:
The UNT Digital Library