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2010 Census: Cost and Design Issues Need to Be Addressed Soon
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's cost estimates, and (3) review the rigor of the Bureau's 2010 planning process."
Date:
January 15, 2004
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. [128], No. [32], Ed. 1 Thursday, January 15, 2004
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
January 15, 2004
Creator:
Lucas, Melinda L.
Object Type:
Newspaper
System:
The Portal to Texas History
Altus Times (Altus, Okla.), Vol. 105, No. 260, Ed. 1 Thursday, January 15, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 15, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Analytic Expressions for the Angular Resolution of Compton Gamma-ray Detectors
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 photon direction. The initial photon direction lies along this cone. Thus for single events there is a ring-like ambiguity in the photon direction. By combining multiple events, the intersection of the reconstructed rings will resolve the initial direction of the photon source. In this paper, we derive the resolution of the cone angle for individual rings. Electron-tracking type devices resolve the electron path. Although the scattered electron subsequently undergoes multiple-Coulomb scattering, it is possible to measure the initial electron direction with sufficiently high tracking resolution. By measuring the direction and energy of the electron and the direction of the scattered photon, the initial photon direction can be uniquely determined. The challenge for this type of detector is achieving the high tracking resolution. In Section 2 we derive the well-known Compton …
Date:
January 15, 2004
Creator:
Wright, D M
Object Type:
Report
System:
The UNT Digital Library
Archer County News (Archer City, Tex.), No. 3, Ed. 1 Thursday, January 15, 2004
Weekly newspaper from Archer City, Texas that includes local, state, and national news along with advertising.
Date:
January 15, 2004
Creator:
Lewis, Shelley
Object Type:
Newspaper
System:
The Portal to Texas History
Assessment of Various Kinetic Models for the Pyrolysis of a Microgranular Cellulose
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 nuclei-growth, well represented by the models of Avrami-Erofeev and of Prout-Tompkins type. All the other kinetic models commonly applied to the thermal decomposition of solids revealed unsatisfactory. The TGA and DTG data were thus found ideally simulated from a reaction scheme consisting in two parallel reactions, termed 1 and 2, each one described by the kinetic law: DX/DT = -A{sup -E/RT}x{sup n}(1-0.99x){sup n}. Reaction 1 is related to the bulk decomposition of cellulose and is characterized by the set of parameters: E{sub 1}= 202 kJ/mole; n{sub 1}=1; m{sub 1}=0.48. Reaction 2 is related to the slower residual decomposition, which takes place over approximately 350 C and affects only 16 % by weight of the raw cellulose. With m{sub 2} constrained to 1, …
Date:
January 15, 2004
Creator:
Burnham, A K; Capart, R & Khezami, L
Object Type:
Article
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 82, No. 44, Ed. 1 Thursday, January 15, 2004
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
January 15, 2004
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
Benson Beach Demonstration Project: Composition and Abundance of Biota at Three Alternative Sump Sites
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) and fishes represent one of the criteria for evaluating each of the alternative locations. To establish the species composition and relative abundance of crabs and fishes associated with each of the three proposed sump areas, researchers from the Pacific Northwest National Laboratory Marine Sciences Division completed nine field sampling trips from July 8, 2003, to November 1, 2003, for a total of 113 successful trawls comprising an area of over 7.4 ha (74,156 m2). This report documents the results of that effort. To understand the relative risk of losses to crab populations associated with dredging impacts at the sump alternative areas, it is recommended that a modified dredge impact model be developed using the data collected in this study. This model …
Date:
January 15, 2004
Creator:
Williams, Greg D.; Pearson, Walter H.; Evans, Nathan R. & Anderson, Michael G.
Object Type:
Report
System:
The UNT Digital Library
Border and Transportation Security: Budget for FY2003 and FY2004
...
Date:
January 15, 2004
Creator:
Snook, Dennis & Lake, Jennifer
Object Type:
Report
System:
The UNT Digital Library
The Canadian Record (Canadian, Tex.), Vol. 114, No. 3, Ed. 1 Thursday, January 15, 2004
Weekly newspaper from Canadian, Texas that includes local, state and national news along with some advertising.
Date:
January 15, 2004
Creator:
Brown, Laurie Ezzell
Object Type:
Newspaper
System:
The Portal to Texas History
Cathepsin L is required for endothelial progenitor cell-induced neovascularization
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 recovery after hind limb ischemia supporting the concept for an important role of CathL in postnatal neovascularization. Infused CathL deficient progenitor cells failed to home to sites of ischemia and to augment neovascularization. In contrast, over expression of CathL in mature ECs significantly enhanced their invasive activity and induced their neovascularization capacity in vivo. Taken together, CathL plays a crucial role for the integration of circulating EPCs into the ischemic tissue and is required for neovascularization mediated by EPCs.
Date:
January 15, 2004
Creator:
Urbich, Carmen; Heeschen, Christopher; Aicher, Alexandra; Sasaki, Ken-ichiro; Bruhl, Thomas; Hofmann, Wolf K. et al.
Object Type:
Article
System:
The UNT Digital Library
Child Support Enforcement: New Reforms and Potential Issues
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 1999, but not in 2000, 2001, 2002, or 2003. This report describes several aspects of the revised CSE program and discusses three issues that probably will be reexamined by the 108th Congress — CSE financing, parental access by noncustodial parents, and distribution of support payments.
Date:
January 15, 2004
Creator:
Solomon-Fears, Carmen
Object Type:
Report
System:
The UNT Digital Library
Comanche Chief (Comanche, Tex.), No. 37, Ed. 1 Thursday, January 15, 2004
Weekly newspaper from Comanche, Texas that includes local, state, and national news along with advertising.
Date:
January 15, 2004
Creator:
Wilkerson, James C., III
Object Type:
Newspaper
System:
The Portal to Texas History
Comparison of TracePro and Micromega Models for Infrared Heated Ice Layers Inside of Hohlraums
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
Object Type:
Report
System:
The UNT Digital Library
Cooper Review (Cooper, Tex.), Vol. 124, No. 3, Ed. 1 Thursday, January 15, 2004
Weekly newspaper from Cooper, Texas that includes local, state, and national news along with advertising.
Date:
January 15, 2004
Creator:
Pinson, Beth
Object Type:
Newspaper
System:
The Portal to Texas History
The Dublin Citizen (Dublin, Tex.), Vol. 14, No. 20, Ed. 1 Thursday, January 15, 2004
Weekly newspaper from Dublin, Texas that includes local, state, and national news along with advertising.
Date:
January 15, 2004
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Effect of GaN template layer strain on the growth of InxGa1-xN/GaN MQW light emitting diodes
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{micro}m layer experienced tensile strain. Dynamic Secondary Ion Mass Spectrometry depth profiles show that the 15{micro}m template layer device had an average indium concentration of 11% higher than that of the 5{micro}m template layer device even though the structures were deposited during the same growth run. It was also found that the 15{micro}m layer device had a higher growth rate than the 5{micro}m template layer device. This difference in indium concentration and growth rate was due to changes in thermodynamic limitations caused by strain differences in the template layers.
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.
Object Type:
Article
System:
The UNT Digital Library
The Effect of Government Actions on Environmental Technology Innovation: Applications to the Integrated Assessment of Carbon Sequestration Technologies
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 experience with sulfur dioxide (SO{sub 2}) and nitrogen oxide (NO{sub x}) control technologies over the past 30 years, and derive empirical learning rates for these technologies. The patterns of technology innovation are captured by our analysis of patent activities and trends of cost reduction over time. Overall, we found learning rates of 11% for the capital costs of flue gas desulfurization (FGD) system for SO{sub 2} control, and 13% for selective catalytic reduction (SCR) systems for NO{sub x} control. We explore the key factors responsible for the observed trends, especially the development of regulatory policies for SO{sub 2} and NO{sub x} control, and their implications for environmental control technology innovation.
Date:
January 15, 2004
Creator:
Rubin, E. S.; Hounshell, D. A.; Yeh, S.; Taylor, M.; Schrattenholzer, L.; Riahi, K. et al.
Object Type:
Report
System:
The UNT Digital Library
Electra Star-News (Electra, Tex.), Vol. 98, No. 21, Ed. 1 Thursday, January 15, 2004
Weekly newspaper from Electra, Texas that includes local, state, and national news along with advertising.
Date:
January 15, 2004
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
ELECTRICAL SUBSTATION RELIABILITY EVALUATION WITH EMPHASIS ON EVOLVING INTERDEPENDENCE ON COMMUNICATION INFRASTRUCTURE.
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 in the design of the new network segment to be installed in the area of the World Trade Center in lower Manhattan. Our method is microscopic in nature and relies heavily on the specific design of the portion of the grid being analyzed. It extensively models the types of faults that a grid could potentially experience, the response of the grid, and the specific design of the protection schemes. We demonstrate that the existing technology can be extended and applied to the electrical grid and to the supporting communication network. A small subsection of a hypothetical grid based on the existing New York City electrical grid system of Con Edison is used to demonstrate the methods. Sensitivity studies show that in the current design the frequency for the …
Date:
January 15, 2004
Creator:
AZARM,M. A. BARI,R. A. MUSICKI,Z.
Object Type:
Report
System:
The UNT Digital Library
eShadow: A tool for comparing closely related sequences
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 alignments of closely related genomes, such as in comparisons of human to primate or mouse to rat DNA. This tool integrates two different statistical methods and allows for the dynamic visualization of the resulting conservation profile. eShadow also includes a versatile optimization module capable of training the underlying Hidden Markov Model to differentially predict functional sequences. This module grants the tool high flexibility in the analysis of multiple sequence alignments and in comparing sequences with different divergence rates. Here, we describe the eShadow comparative tool and its potential uses for analyzing both multiple nucleotide and protein alignments to predict putative functional elements. The eShadow tool is publicly available at http://eshadow.dcode.org/
Date:
January 15, 2004
Creator:
Ovcharenko, Ivan; Boffelli, Dario & Loots, Gabriela G.
Object Type:
Article
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Thursday, January 15, 2004
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 15, 2004
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Garber Billings News (Garber, Okla.), Vol. 104, No. 12, Ed. 1 Thursday, January 15, 2004
Weekly newspaper from Garber, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 15, 2004
Creator:
Hogan, Vickie Lee
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Gayly Oklahoman (Oklahoma City, Okla.), Vol. 22, No. 2, Ed. 1 Thursday, January 15, 2004
Semi-monthly newspaper from Oklahoma City, Oklahoma that includes local, state, and national news and advertising of interest to the Lesbian, Gay, Bisexual, and Transgender (LGBT) community.
Date:
January 15, 2004
Creator:
Hawkins, Don
Object Type:
Newspaper
System:
The UNT Digital Library