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Across-the-Board Tax Cuts: Economic Issues (open access)

Across-the-Board Tax Cuts: Economic Issues

This report examines economic issues relating to across-the-board tax cuts, focusing primarily on distributional issues. The report is divided into four sections. The first section provides a general overview of the tax system. The next discusses recent proposals relating to across-the-board tax cuts. The third section discusses methods of evaluating alternative types of across-the-board tax cuts. The final section briefly discusses issues of efficiency, simplicity, and stabilization policy.
Date: September 24, 2001
Creator: Gravelle, Jane G.
Object Type: Report
System: The UNT Digital Library
Adjustable Permanent Quadrupoles Using Rotating Magnet Material Rods for the Next Linear Collider (open access)

Adjustable Permanent Quadrupoles Using Rotating Magnet Material Rods for the Next Linear Collider

The proposed Next Linear Collider (NLC) will require over 1400 adjustable quadrupoles between the main linacs' accelerator structures. These 12.7 mm bore quadrupoles will have a range of integrated strength from 0.6 to 132 Tesla, with a maximum gradient of 135 Tesla per meter, an adjustment range of +0-20% and effective lengths from 324 mm to 972 mm. The magnetic center must remain stable to within 1 micrometer during the 20% adjustment. In an effort to reduce estimated costs and increase reliability, several designs using hybrid permanent magnets have been developed. All magnets have iron poles and use either Samarium Cobalt or Neodymium Iron to provide the magnetic fields. Two prototypes use rotating rods containing permanent magnetic material to vary the gradient. Gradient changes of 20% and center shifts of less than 20 microns have been measured. These data are compared to an equivalent electromagnet prototype.
Date: September 24, 2001
Creator: al., James T Volk et
Object Type: Article
System: The UNT Digital Library
Africa: U.S. Foreign Assistance Issues (open access)

Africa: U.S. Foreign Assistance Issues

This report discusses the issue of U.S. economic assistance to sub-Saharan Africa, highlighting the importance of continued assistance in light of U.S. national security and also various U.S.-led efforts to promote reform amongst African citizens themselves. U.S. assistance finds its way to Africa through a variety of channels, including the USAID-administered DA program, food aid programs, and indirect aid provided through international financial institutions and the United Nations.
Date: September 24, 2001
Creator: Copson, Raymond W.
Object Type: Report
System: The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 102, No. 176, Ed. 1 Monday, September 24, 2001 (open access)

Altus Times (Altus, Okla.), Vol. 102, No. 176, Ed. 1 Monday, September 24, 2001

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: September 24, 2001
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Alvin Sun (Alvin, Tex.), Vol. 110, No. 78, Ed. 1 Monday, September 24, 2001 (open access)

The Alvin Sun (Alvin, Tex.), Vol. 110, No. 78, Ed. 1 Monday, September 24, 2001

Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date: September 24, 2001
Creator: Schwind, Jim & Holton, Kathleen
Object Type: Newspaper
System: The Portal to Texas History
Applications of Crystal Plasticity in Multiscale Modeling (open access)

Applications of Crystal Plasticity in Multiscale Modeling

Multiscale modeling with crystal plasticity constitutive relations is used to determine the average response of a polycrystal. The measured crystallographic texture of a copper shaped charge liner is used in a crystal plasticity model to construct a yield surface that exhibits normal-shear coupling. Simulations with this yield surface model demonstrate the spinning behavior observed in the spin formed copper shaped charges.
Date: September 24, 2001
Creator: Becker, R.; Busche, M.; Schwartz, A. J. & Kumar, M.
Object Type: Article
System: The UNT Digital Library
Are the J/psi and chi_c A dependencies the same? (open access)

Are the J/psi and chi_c A dependencies the same?

It has been empirically observed that the dependence of J/{psi} and {psi}{prime} production on nuclear mass number A is very similar. This has been postulated to be due to the predominance of color octet pre-resonant states in charmonium production and absorption. Two new experiments, NA60 at CERN and HERA-B at DESY, will measure the {chi}{sub c} A dependence for the first time. These measurements should shed new light on the charmonium production and absorption mechanisms.
Date: September 24, 2001
Creator: Vogt, R.
Object Type: Article
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 79, No. 302, Ed. 1 Monday, September 24, 2001 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 79, No. 302, Ed. 1 Monday, September 24, 2001

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: September 24, 2001
Creator: Cash, Wanda Garner
Object Type: Newspaper
System: The Portal to Texas History
A Catalog of Vadose Zone Hydraulic Properties for the Hanford Site (open access)

A Catalog of Vadose Zone Hydraulic Properties for the Hanford Site

The purpose of this catalog is to integrate all available soil physics data and information from vadose zone characterization and performance assessments into one useable, scientifically defensible document.
Date: September 24, 2001
Creator: Freeman, Eugene J.; Khaleel, Raziuddin & Heller, Paula R.
Object Type: Report
System: The UNT Digital Library
A Catalog of Vadose Zone Hydraulic Properties for the Hanford Site (open access)

A Catalog of Vadose Zone Hydraulic Properties for the Hanford Site

The purpose of this catalog is to integrate all available soil physics data and information from vadose zone characterization and performance assessments into one usable, scientifically defensible document.
Date: September 24, 2001
Creator: Freeman, Eugene J; Khaleel, Raziuddin & Heller, Paula R
Object Type: Report
System: The UNT Digital Library
COMPLETION OF SUPERCONDUCTING MAGNET PRODUCTION AT BNL FOR THE HERA LUMINOSITY UPGRADE (open access)

COMPLETION OF SUPERCONDUCTING MAGNET PRODUCTION AT BNL FOR THE HERA LUMINOSITY UPGRADE

Brookhaven National Laboratory (BNL) has completed production of the superconducting multi-function magnets that are now installed as part of the HERA luminosity upgrade at DESY. The magnets, cryostats, and lead assemblies were designed and built at BNL. To fit inside the existing detectors, the coils plus cryostat structure had to meet a challenging radial budget (e.g., 39 mm horizontally). Two types of magnets were needed and three of each type were built. Each magnet contained normal and skew quadrupole, normal and skew dipole, and sextupole coils. The magnets operate in the {approx}1.5 T solenoid field of a detector. The quadrupole coils produce gradients up to 13 T/m. The dipole coils generate fields up to 0.3 T. Coils were wound under computer control using either seven-strand round cable or a single strand. To simultaneously avoid excessive synchrotron radiation background scattered from the beam pipe and yet have a small cryostat, one type of magnet used a tapered coil structure. The cryogenic system incorporates cooling with both 40 K helium and supercritical helium. All of the coils were tested in liquid helium in a vertical dewar. Quench test results have been excellent. The field quality of the magnets has met the stringent …
Date: September 24, 2001
Creator: WANDERER,P. ANERELLA,M. ESCALLIER,J. GHOSH,A. JAIN,A. MARONE,A. MURATORE,J. PARKER,A. PRODELL,A. THOMPSON,P. WU,K. C.
Object Type: Article
System: The UNT Digital Library
Conceptual Design of Pion Capture Magnets of Up to 15 Cm Bore and 20 T Peak Field. (open access)

Conceptual Design of Pion Capture Magnets of Up to 15 Cm Bore and 20 T Peak Field.

For the Neutrino Factory and Muon Collider Collaboration, BNL has considered solenoidal magnet systems of several types to capture pions generated by bombarding a mercury jet with multi-GeV protons. The magnet systems generate up to 20 T, uniform to 5% throughout a cylindrical volume 0.15 m in diameter and 0.6 m long. Axially downstream the field ramps gradually downward by a factor of sixteen, while the bore increases fourfold. The steady-state system needed for an accelerator has many superconducting coils and a radiation-resistant insert of mineral-insulated hollow conductor. Less costly, pulsed systems suffice to study pion capture and the effect of a magnetic field on a jet hit by a proton beam. BNL has explored three types of magnets, each with its principal coils precooled by liquid nitrogen. One type employs two sets of coils energized sequentially. Charged in 23 s by a power supply of 5 MVA, the 16ton outer set generates 10 T and stores 28 MJ, from which, in 1/3 s, to charge a half-ton inner coil that adds 12 1/2 T to the 7 1/2 T remaining from the outer set. An alternative design uses 25 MVA to energize, in 1.4 s, a single 3-ton set …
Date: September 24, 2001
Creator: Weggel, R. J.
Object Type: Article
System: The UNT Digital Library
Daily Journal (Perry, Okla.), Vol. 108, No. 187, Ed. 1 Monday, September 24, 2001 (open access)

Daily Journal (Perry, Okla.), Vol. 108, No. 187, Ed. 1 Monday, September 24, 2001

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: September 24, 2001
Creator: Brown, Gloria
Object Type: Newspaper
System: The Gateway to Oklahoma History
Diffusion and Leaching of Selected Radionuclides (Iodine-129, Technetium-99, and Uranium) Through Category 3 Waste Encasement Concrete and Soil Fill Material (open access)

Diffusion and Leaching of Selected Radionuclides (Iodine-129, Technetium-99, and Uranium) Through Category 3 Waste Encasement Concrete and Soil Fill Material

An assessment of long-term performance of Category 3 waste-enclosing cement grouts requires data about the leachability/diffusion of radionuclide species (iodine-129, technetium-99, and uranium) when the waste forms come in contact with groundwater. Leachability data were collected by conducting dynamic (ANS-16.1) and static leach tests on radionuclide-containing cement specimens. The diffusivity of radionuclides in soil and concrete media was collected by conducting soil-soil and concrete-soil half-cell experiments.
Date: September 24, 2001
Creator: Mattigod, Shas V.; Whyatt, Greg A.; Serne, R. Jeffrey; Martin, P. F.; Schwab, Kristen E. & Wood, Marcus I.
Object Type: Report
System: The UNT Digital Library
Diffusion and Leaching of Selected Radionuclides (Iodine-129, Technetium-99, and Uranium) Through Category 3 Waste Encasement Concrete and Soil Fill Material (open access)

Diffusion and Leaching of Selected Radionuclides (Iodine-129, Technetium-99, and Uranium) Through Category 3 Waste Encasement Concrete and Soil Fill Material

An assessment of long-term performance of Category 3 waste-enclosing cement grouts requires data about the leachability/diffusion of radionuclide species (iodine-129, technetium-99, and uranium) when the waste forms come in contact with groundwater. Leachability data were collected by conducting dynamic (ANS-16.1) and static leach tests on radionuclide-containing cement specimens. The diffusivity of radionuclides in soil and concrete media was collected by conducting soil-soil and concrete-soil half-cell experiments.
Date: September 24, 2001
Creator: Mattigod, Shas V; Whyatt, Greg A; Serne, R Jeffrey; Schwab, Kristen E & Wood, Marcus I
Object Type: Report
System: The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Monday, September 24, 2001 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Monday, September 24, 2001

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: September 24, 2001
Creator: Bush, Kent
Object Type: Newspaper
System: The Gateway to Oklahoma History
Federal Employees: Hiring Patterns at Federal Agencies Just Prior to a Change in Administration (open access)

Federal Employees: Hiring Patterns at Federal Agencies Just Prior to a Change in Administration

Correspondence issued by the General Accounting Office with an abstract that begins "GAO reviewed 24 agencies that are covered by the Chief Financial Officers (CFO) Act of 1990 to analyze trends in hiring patterns. Generally, GAO did not find any discernable patterns. More than half of the 24 agencies GAO reviewed reported career hiring increases of 10 percent or more between July and December 2000 compared to the same period in 1999. A similar number of agencies, although not necessarily the same ones, reported increases of 10 percent or more for 1999, compared to 1998. Although the percentage changes exceeded 10 percent for most agencies, the actual number of hires were often small. The total number of career and Senior Executive Service employees on board in each of the 24 CFO agencies remained relatively stable during the three-year period."
Date: September 24, 2001
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library
Implantation and Release of Krypton with Copper Foils (open access)

Implantation and Release of Krypton with Copper Foils

A system and a method providing high-efficiency implantation and release of Kr ions in metal foils have been developed. Implantation and release measurements were performed with a static mass spectrometer. Efficient implantation/retention of rare-gas isotopic ions in a target and their subsequent efficient volatilization from the target is the first of two central requirements for developing an ultrasensitive (10 parts per trillion) method to determine the isotopic content of rare gases. In a number of initial Kr ion implantation runs in Cu, with subsequent volatilization of the implanted Kr by heating, implantation/release efficiencies averaging about 52% were observed. This low value was determined to be due to only partial interception of the Kr ion beam by the target. With modifications to the target assembly, mass spectrometer, and target size, the efficiencies for implantation/release of Kr in Cu were raised to essentially 100%. These efficiencies meet the first requirement for developing this method.
Date: September 24, 2001
Creator: Oliver, Brian M.; Eiden, Greg C. C. & Ballou, Nathan E.
Object Type: Report
System: The UNT Digital Library
Implantation and Release of Krypton with Copper Foils (open access)

Implantation and Release of Krypton with Copper Foils

A system and a method providing high-efficiency implantation and release of Kr ions in metal foils have been developed. Implantation and release measurements were performed with a static mass spectrometer. Efficient implantation/retention of rare-gas isotopic ions in a target and their subsequent efficient volatilization from the target is the first of two central requirements for developing an ultrasensitive (10 parts per trillion) method to determine the isotopic content of rare gases. In a number of initial Kr ion implantation runs in Cu, with subsequent volatilization of the implanted Kr by heating, implantation/release efficiencies averaging about 52% were observed. This low value was determined to be due to only partial interception of the Kr ion beam by the target. With modifications to the target assembly, mass spectrometer, and target size, the efficiencies for implantation/release of Kr in Cu were raised to essentially 100%. These efficiencies meet the first requirement for developing this method.
Date: September 24, 2001
Creator: Oliver, Brian M; Eiden, Greg C. & Ballou, Nathan E
Object Type: Report
System: The UNT Digital Library
In-Drift Microbial Communities Model Validation Calculations (open access)

In-Drift Microbial Communities Model Validation Calculations

The objective and scope of this calculation is to create the appropriate parameter input for MING 1.0 (CSCI 30018 V1.0, CRWMS M&O 1998b) that will allow the testing of the results from the MING software code with both scientific measurements of microbial populations at the site and laboratory and with natural analogs to the site. This set of calculations provides results that will be used in model validation for the ''In-Drift Microbial Communities'' model (CRWMS M&O 2000) which is part of the Engineered Barrier System Department (EBS) process modeling effort that eventually will feed future Total System Performance Assessment (TSPA) models. This calculation is being produced to replace MING model validation output that is effected by the supersession of DTN MO9909SPAMING1.003 using its replacement DTN MO0106SPAIDM01.034 so that the calculations currently found in the ''In-Drift Microbial Communities'' AMR (CRWMS M&O 2000) will be brought up to date. This set of calculations replaces the calculations contained in sections 6.7.2, 6.7.3 and Attachment I of CRWMS M&O (2000) As all of these calculations are created explicitly for model validation, the data qualification status of all inputs can be considered corroborative in accordance with AP-3.15Q. This work activity has been evaluated in accordance …
Date: September 24, 2001
Creator: Jolley, D. M.
Object Type: Report
System: The UNT Digital Library
INTERACTION REGION MAGNETS FOR VLHC. (open access)

INTERACTION REGION MAGNETS FOR VLHC.

The interaction region (IR) magnets for the proposed very large hadron collider (VLHC) require high gradient quadrupoles and high field dipoles for high luminosity performance. Moreover, the IR magnets for high energy colliders and storage rings must operate in an environment where the amount of energy deposited on superconducting coils is rather large. In the case of doublet IR optics with flat beams, the design of the first 2-in-1 quadrupole defines the geometry and pole tip field in this and other IR magnets. This paper will present a novel design of this magnet that allows a very small separation between the two apertures. A brief discussion of the conceptual magnetic design of this and other magnets for interaction regions is given. The influence of critical current density in superconductor (a higher value of which is most beneficial to high performance IR magnet design) is also discussed. Since High Temperature Superconductors (HTS) retain most of their critical current density at high fields and at elevated temperatures, they offer an attractive possibility for the IR magnet designs of future colliders or upgrades of present colliders.
Date: September 24, 2001
Creator: Gupta, R. & Harrison, M.
Object Type: Article
System: The UNT Digital Library
Isotope Exchange and Fractionation Corrections for Extraction of Tritiated Water in Silica Gel by Freeze-Drying Techniques (open access)

Isotope Exchange and Fractionation Corrections for Extraction of Tritiated Water in Silica Gel by Freeze-Drying Techniques

A concentration correction curve was established for measuring the activity concentration of airborne tritiated water collected with dried silica gel and extracted by the LLNL Environmental Monitoring Radiological Laboratory freeze-dry technique. A tracer study using standard tritiated water with silica gel showed that the concentration of tritium in the extracted water is lower than that in the adsorbed water by a fraction proportional to the amount of adsorbed water. The observed decrease in tritium concentration in the extracted water can be accounted for by dilution due to isotopic exchange with both non-tritiated water and hydroxyl groups within the silica gel matrix. For the range of 8-35% adsorbed water, which is typical of samples collected in LLNL monitoring stations, the derived exchangeable water in the silica gel material under investigation was (5.12 {+-} 0.08)%. The contribution of the H{sub 2}O/HTO vapor pressure effect using published empirical data in the literature was also considered in calculating the degree of isotopic exchange.
Date: September 24, 2001
Creator: Guthrie, E B; Shen, N C & Bandong, B B
Object Type: Report
System: The UNT Digital Library
[Letter from Jeff C. Reed to Helen Snapp, September 24, 2001] (open access)

[Letter from Jeff C. Reed to Helen Snapp, September 24, 2001]

Letter from Jeff C. Reed from the Fort Stewart Museum to Helen Snapp discussing Snapp's recent visit to Fort Stewart to present at their Women's History month luncheon. Reed included two sets of photographs.
Date: September 24, 2001
Creator: Reed, Jeff C.
Object Type: Letter
System: The Portal to Texas History
Long-Term Care: Implications of Supreme Court's Olmstead Decision Are Still Unfolding (open access)

Long-Term Care: Implications of Supreme Court's Olmstead Decision Are Still Unfolding

Testimony issued by the General Accounting Office with an abstract that begins "In the Olmstead case, the Supreme Court decided that states were violating title II of the Americans with Disabilities Act of 1990 (ADA) if they provided care to disabled people in institutional settings when they could be a appropriately served in a home or community-based setting. Considerable attention has focused on the decision's implications for Medicaid, the dominant public program supporting long-term care institutional, home, and community-based services. Although Medicaid spending for home and community-based service is growing, these are largely optional benefits that states may or may not choose to offer, and states vary widely in the degree to which they cover them. The implications of the Olmstead decision--in terms of the scope and the nature of states' obligation to provide home and community-based long-term care services--are still unfolding. Although the Supreme Court ruled that providing care in institutional settings may violate the ADA, it also recognized that there are limits to what states can do, given the available resources and the obligation to provide a range of services for disabled people. The decision left many open questions for states and lower courts to resolve. State programs …
Date: September 24, 2001
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library