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2010 Census: Cost and Design Issues Need to Be Addressed Soon

Description: A letter report issued by the General Accounting Office with an abstract that begins "The key to a successful census is meticulous planning as it helps ensure greater cost-effectiveness. However, the 2000 and previous censuses have been marked by poor planning, which unnecessarily raised the costs and risks of those efforts. GAO was asked to (1) review the U.S. Census Bureau's (Bureau) current plans for 2010 and whether they might address shortcomings of the 2000 Census, (2) analyze the Bureau'… more
Date: January 15, 2004
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analytic Expressions for the Angular Resolution of Compton Gamma-ray Detectors

Description: This paper describes the derivation of analytic expressions for the angular resolution of reconstructing gamma rays detected via Compton interactions. We consider two types of gamma-ray detectors: Compton-ring and electron-tracking devices. In Compton-ring devices, the direction of the scattered electron is not resolved, only the total energy (electron and scattered photon) and the scattered photon direction are measured. The measured quantities define a cone about the axis of the scattered pho… more
Date: January 15, 2004
Creator: Wright, D M
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Assessment of Various Kinetic Models for the Pyrolysis of a Microgranular Cellulose

Description: The kinetics of pyrolysis of a micro-crystalline cellulose in nitrogen were studied from TGA and DTG data, obtained with two different modes of heating: a dynamic mode at constant heating rates between 1 and 11 C/min and an isothermal mode at various temperatures, kept constant between 280 and 320 C. In isothermal mode, it appeared very clearly that the mass depletion shows a sigmoid profile characteristic of an auto-accelerated reaction process. This behavior is consistent with kinetics of nuc… more
Date: January 15, 2004
Creator: Burnham, A K; Capart, R & Khezami, L
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Benson Beach Demonstration Project: Composition and Abundance of Biota at Three Alternative Sump Sites

Description: The Portland District of the U.S. Army Corps of Engineers is investigating plans to provide sediment to nourish beaches north of the Mouth of the Columbia River (MCR). Under the currently designed proposal, sediment dredged from the MCR will be temporarily stored at one of three proposed areas south of the North Jetty before being redredged and moved by a cutterhead pipeline dredge over the jetty to nourish Benson Beach. Resulting potential impacts to resident Dungeness crab (Cancer magister) a… more
Date: January 15, 2004
Creator: Williams, Greg D.; Pearson, Walter H.; Evans, Nathan R. & Anderson, Michael G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cathepsin L is required for endothelial progenitor cell-induced neovascularization

Description: Infusion of endothelial progenitor cells (EPCs), but not of mature endothelial cells (ECs), promotes neovascularization after ischemia. We performed a gene expression profiling of EPCs and ECs to identify genes, which might be important for the neovascularization capacity of EPCs. Intriguingly, the protease cathepsin L (CathL) was highly expressed in EPCs as opposed to ECs and is essential for matrix degradation and invasion by EPCs in vitro. CathL deficient mice showed impaired functional reco… more
Date: January 15, 2004
Creator: Urbich, Carmen; Heeschen, Christopher; Aicher, Alexandra; Sasaki, Ken-ichiro; Bruhl, Thomas; Hofmann, Wolf K. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Child Support Enforcement: New Reforms and Potential Issues

Description: P.L. 104-193 (the 1996 welfare reform legislation) made major changes to the Child Support Enforcement (CSE) program. Some of the changes include requiring states to increase the percentage of fathers identified, establishing an integrated, automated network linking all states to information about the location and assets of parents, and requiring states to implement more enforcement techniques to obtain collections from debtor parents. Additional legislative changes were made in 1997, 1998, and… more
Date: January 15, 2004
Creator: Solomon-Fears, Carmen
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Comparison of TracePro and Micromega Models for Infrared Heated Ice Layers Inside of Hohlraums

Description: A reference calculation for the infrared absorption profile was settled upon to compare results using TracePro commercial raytracing software and the Micromega codes. I have rerun the TracePro model with updated parameters to better match those used in Micromega. While the general shape of the absorption curves are consistent, the fine details still differ considerably between the two software packages.
Date: January 15, 2004
Creator: Kozioziemski, B J
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effect of GaN template layer strain on the growth of InxGa1-xN/GaN MQW light emitting diodes

Description: GaN template layer strain effects were investigated on the growth of InGaN/GaN LED devices. Seven period InGaN/GaN multiple quantum well structures were deposited on 5{micro}m and 15{micro}m GaN template layers. It was found that the electroluminescence emission of the 15{micro}m device was red-shifted by approximately 132meV. Triple-axis X-Ray Diffraction and Cross-Sectional Transmission Electron Microscopy show that the 15{micro}m templay layer device was virtually unstrained while the 5{micr… more
Date: January 15, 2004
Creator: Johnson, M. C.; Bourret-Courchesne, E. D.; Wu, J.; Liliental-Weber, Z.; Zakharov, D. N.; Jorgenson, R. J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The Effect of Government Actions on Environmental Technology Innovation: Applications to the Integrated Assessment of Carbon Sequestration Technologies

Description: This project seeks to improve the ability of integrated assessment models (IA) to incorporate changes in technology, especially environmental technologies, cost and performance over time. In this report, we present results of research that examines past experience in controlling other major power plant emissions that might serve as a reasonable guide to future rates of technological progress in carbon capture and sequestration (CCS) systems. In particular, we focus on U.S. and worldwide experie… more
Date: January 15, 2004
Creator: Rubin, E. S.; Hounshell, D. A.; Yeh, S.; Taylor, M.; Schrattenholzer, L.; Riahi, K. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

ELECTRICAL SUBSTATION RELIABILITY EVALUATION WITH EMPHASIS ON EVOLVING INTERDEPENDENCE ON COMMUNICATION INFRASTRUCTURE.

Description: The objective of this study is to develop a methodology for a probabilistic assessment of the reliability and security of electrical energy distribution networks. This includes consideration of the future grid system, which will rely heavily on the existing digitally based communication infrastructure for monitoring and protection. Another important objective of this study is to provide information and insights from this research to Consolidated Edison Company (Con Edison) that could be useful … more
Date: January 15, 2004
Creator: AZARM,M. A. BARI,R. A. MUSICKI,Z.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

eShadow: A tool for comparing closely related sequences

Description: Primate sequence comparisons are difficult to interpret due to the high degree of sequence similarity shared between such closely related species. Recently, a novel method, phylogenetic shadowing, has been pioneered for predicting functional elements in the human genome through the analysis of multiple primate sequence alignments. We have expanded this theoretical approach to create a computational tool, eShadow, for the identification of elements under selective pressure in multiple sequence a… more
Date: January 15, 2004
Creator: Ovcharenko, Ivan; Boffelli, Dario & Loots, Gabriela G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A Generalized Mass Lumping Scheme for Maxwell's Wave Equation

Description: We are interested in the high order Vector Finite Element Method (VFEM) [1] solution to Maxwell's wave equation on both orthogonal and non-orthogonal meshes. This method discretizes the wave equation in the following manner, where M is the edge mass matrix and K is the edge stiffness matrix created using classical Nedelec edge elements.
Date: January 15, 2004
Creator: Fisher, A; White, D & Rodrigue, G
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Initial characterization of processes of soil carbon stabilization using forest stand-level radiocarbon enrichment

Description: Although the rates and mechanisms of soil organic matter (SOM) stabilization are difficult to observe directly, radiocarbon has proven an effective tracer of soil C dynamics, particularly when coupled with practical fractionation schemes. To explore the rates of C cycling in temperate forest soils, we took advantage of a unique opportunity in the form of an inadvertent stand-level {sup 14}C-labeling originating from a local industrial release. A simple density fractionation scheme separated SOM… more
Date: January 15, 2004
Creator: Swanston, C W; Torn, M S; Hanson, P J; Southon, J R; Garten, C T; Hanlon, E M et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

INTERNATIONAL CONFERENCE ON ULTRASHORT HIGH-ENERGY RADIATION AND MATTER

Description: The workshop is intended as a forum to discuss the latest experimental, theoretical and computational results related to the interaction of high energy radiation with matter. High energy is intended to mean soft x-ray and beyond, but important new results from visible systems will be incorporated. The workshop will be interdisciplinary amongst scientists from many fields, including: plasma physics; x-ray physics and optics; solid state physics and material science; biology ; quantum optics. Top… more
Date: January 15, 2004
Creator: Wootton, A J
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mechanism of lipid lowering in mice expressing human apolipoprotein A5

Description: Recently, we reported that apoAV plays key role in triglycerides lowering. Here, we attempted to determine the mechanism underlying this hypotriglyceridemic effect. We showed that triglyceride turnover is faster in hAPOA5 transgenic compared to wild type mice. Moreover, both apoB and apoCIII are decreased and LPL activity is increased in postheparin plasma of hAPOA5 transgenic mice. These data suggest a decrease in size and number of VLDL. To further investigate the mechanism of hAPOA5 in hyper… more
Date: January 15, 2004
Creator: Fruchart-Najib, Jamila; Bauge, Eric; Niculescu, Loredan-Stefan; Pham, Tatiana; Thomas, Benoit; Rommens, Corinne et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Noise minimization in eukaryotic gene expression

Description: All organisms have elaborate mechanisms to control rates of protein production. However, protein production is also subject to stochastic fluctuations, or noise. Several recent studies in Saccharomyces cerevisiae and Escherichia coli have investigated the relationship between transcription and translation rates and stochastic fluctuations in protein levels, or more generally, how such randomness is a function of intrinsic and extrinsic factors. However, the fundamental question of whether stoch… more
Date: January 15, 2004
Creator: Fraser, Hunter B.; Hirsh, Aaron E.; Giaever, Guri; Kumm, Jochen & Eisen, Michael B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Optimal Resource Allocation in Electrical Network Defense

Description: Infrastructure networks supplying electricity, natural gas, water, and other commodities are at risk of disruption due to well-engineered and coordinated terrorist attacks. Countermeasures such as hardening targets, acquisition of spare critical components, and surveillance can be undertaken to detect and deter these attacks. Allocation of available countermeasures resources to sites or activities in a manner that maximizes their effectiveness is a challenging problem. This allocation must take… more
Date: January 15, 2004
Creator: Yao, Y; Edmunds, T; Papageorgiou, D & Alvarez, R
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A prospective study of XRCC1 haplotypes and their interaction with plasma carotenoids on breast cancer risk

Description: The XRCC1 protein is involved in the base excision repair pathway through interactions with other proteins. Polymorphisms in the XRCC1 gene may lead to variation in repair proficiency and confer inherited predisposition to cancer. We prospectively assessed the associations between polymorphisms and haplotypes in XRCC1 and breast cancer risk in a nested case-control study within the Nurses' Health Study (incident cases, n 1004; controls, n 1385). We further investigated gene-environment interact… more
Date: January 15, 2004
Creator: Mohrenweiser, H W; Han, J; Hankinson, S E; De Vivo, I; Spiegelman, D; Tamimi, R M et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Regulating Private Pensions: A Brief Summary of ERISA

Description: This report briefly discusses the Employee Retirement Income Security Act of 1974 (ERISA), and how it protects the interests of participants and beneficiaries in private-sector employee benefit plans. ERISA covers a number of fringe benefits provided by employers, but most of its provisions deal with pension plans. Pension plans sponsored by the federal, state, and local governments, or by churches generally are exempt from ERISA.
Date: January 15, 2004
Creator: Purcell, Patrick
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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