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Social Security Reform: Current Issues and Legislation (open access)

Social Security Reform: Current Issues and Legislation

Report that looks at the Social Security debate, Social Security future projections, and public opinion on Social Security reform. It also looks at past reform measures, from the 109th-112th Congress, none of which received congressional action.
Date: November 28, 2012
Creator: Nuschler, Dawn
Object Type: Report
System: The UNT Digital Library
Health Care Fraud: Types of Providers Involved in Medicare Cases, and CMS Efforts to Reduce Fraud (open access)

Health Care Fraud: Types of Providers Involved in Medicare Cases, and CMS Efforts to Reduce Fraud

Testimony issued by the Government Accountability Office with an abstract that begins "In recently completed work, we found that medical facilities (such as medical centers, clinics, and practices) and durable medical equipment suppliers were the most frequent subjects of criminal fraud cases in Medicare, Medicaid, and CHIP in 2010. Hospitals and medical facilities were the most frequent subjects of civil fraud cases, including cases that resulted in judgments or settlements. According to 2010 data, about one-quarter of the 7,848 subjects investigated in criminal health care fraud cases were medical facilities or were affiliated with these facilities. Additionally, about 16 percent of subjects were durable medical equipment suppliers. Among the subjects investigated in criminal fraud cases, a small percentage (approximately 3 percent) were individuals who were beneficiaries of health care programs. Hospitals constituted nearly 20 percent of the 2,339 subjects of civil fraud cases investigated in 2010, and other medical facilities accounted for about 18 percent of the subjects. Less than 1 percent of subjects involved in civil health care fraud cases were beneficiaries of health care programs. CMS has made progress in implementing strategies to prevent fraud, and recent legislation provided it with enhanced authority. However, CMS has not implemented …
Date: November 28, 2012
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Colombia: Background, U.S. Relations, and Congressional Interest (open access)

Colombia: Background, U.S. Relations, and Congressional Interest

Report that contains information related to the internal revolutionary and narcotic conflicts of Colombia the past and present relationship between Colombia and the United States.
Date: November 28, 2012
Creator: Beittel, June S.
Object Type: Report
System: The UNT Digital Library
The Greensheet (Houston, Tex.), Vol. 43, No. 522, Ed. 1 Wednesday, November 28, 2012 (open access)

The Greensheet (Houston, Tex.), Vol. 43, No. 522, Ed. 1 Wednesday, November 28, 2012

Free weekly newspaper that includes business and classified advertising.
Date: November 28, 2012
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Greensheet (Dallas, Tex.), Vol. 36, No. 240, Ed. 1 Wednesday, November 28, 2012 (open access)

The Greensheet (Dallas, Tex.), Vol. 36, No. 240, Ed. 1 Wednesday, November 28, 2012

Free weekly newspaper that includes business and classified advertising.
Date: November 28, 2012
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
North Texas Daily (Denton, Tex.), Vol. 100, No. 39, Ed. 1 Wednesday, November 28, 2012 (open access)

North Texas Daily (Denton, Tex.), Vol. 100, No. 39, Ed. 1 Wednesday, November 28, 2012

Daily student newspaper from the University of North Texas in Denton, Texas that includes local, state, and campus news along with advertising.
Date: November 28, 2012
Creator: Stratso, Chelsea
Object Type: Newspaper
System: The Portal to Texas History
The Development of Open Water-lubricated Polycrystalline Diamond (PCD) Thrust Bearings for Use in Marine Hydrokinetic (MHK) Energy Machines (open access)

The Development of Open Water-lubricated Polycrystalline Diamond (PCD) Thrust Bearings for Use in Marine Hydrokinetic (MHK) Energy Machines

Polycrstalline diamond (PCD) bearings were designed, fabricated and tested for marine-hydro-kinetic (MHK) application. Bearing efficiency and life were evaluated using the US Synthetic bearing test facility. Three iterations of design, build and test were conducted to arrive at the best bearing design. In addition life testing that simulated the starting and stopping and the loading of real MHK applications were performed. Results showed polycrystalline diamond bearings are well suited for MHK applications and that diamond bearing technology is TRL4 ready. Based on life tests results bearing life is estimated to be at least 11.5 years. A calculation method for evaluating the performance of diamond bearings of round geometry was also investigated and developed. Finally, as part of this effort test bearings were supplied free of charge to the University of Alaska for further evaluation. The University of Alaska test program will subject the diamond bearings to sediment laden lubricating fluid.
Date: November 28, 2012
Creator: Cooley, Craig, H.; Khonsari, Michael,, M & Lingwall, Brent
Object Type: Report
System: The UNT Digital Library
The Dependence of H-mode Energy Confinement and Transport on Collisionality in NSTX (open access)

The Dependence of H-mode Energy Confinement and Transport on Collisionality in NSTX

Understanding the dependence of confi nement on collisionality in tokamaks is important for the design of next-step devices, which will operate at collisionalities at least one order of magnitude lower than in present generation. A wide range of collisionality has been obtained in the National Spherical Torus Experiment (NSTX) by employing two different wall conditioning techniques, one with boronization and between-shot helium glow discharge conditioning (HeGDC+B), and one using lithium evaporation (Li EVAP). Previous studies of HeGDC+B plasmas indicated a strong and favorable dependence of normalized con nement on collisionality. Discharges with lithium conditioning discussed in the present study gen- erally achieved lower collisionality, extending the accessible range of collisionality by almost an order of unity. While the confinement dependences on dimensional, engineering variables of the HeGDC+B and Li EVAP datasets differed, collisionality was found to unify the trends, with the lower collisionality lithium conditioned discharges extending the trend of increasing normalized confi nement time with decreasing collisionality when other dimension less variables were held as fi xed as possible. This increase of confi nement with decreasing collisionality was driven by a large reduction in electron transport in the outer region of the plasma. This result is consistent with gyrokinetic …
Date: November 28, 2012
Creator: S.M.. Kaye, S. Gerhardt, W. Guttenfelder, R. Maingi, R.E. Bell, A. Diallo, B.P. LeBlanc and M. Podesta
Object Type: Report
System: The UNT Digital Library
A 350 MHz, 200 kW CW, Multiple Beam Inductive Output Tube - Final Report (open access)

A 350 MHz, 200 kW CW, Multiple Beam Inductive Output Tube - Final Report

This program developed a 200 kW CW, 350 MHz, multiple beam inductive output tube (MBIOT) for driving accelerator cavities. The MBIOT operates at 30 kV with a gain of 23 dB. The estimated efficiency is 70%. The device uses seven electron beams, each transmitting 1.4 A of current. The tube is approximately six feet long and weighs approximately 400 lbs. The prototype device will be evaluated as a potential RF source for the Advanced Photon Source at Argonne National Laboratory (ANL). Because of issues related to delivery of the electron guns, it was not possible to complete assembly and test of the MBIOT during the Phase II program. The device is being completed with support from Calabazas Creek Research, Inc., Communications & Power Industries, LLC. and the Naval Surface Weapons Center (NSWC) in Dahlgren, VA. The MBIOT will be initially tested at NSWC before delivery to ANL. The testing at NSWC is scheduled for February 2013.
Date: November 28, 2012
Creator: Ives, R. Lawrece; Collins, George; Read, David Marsden Michael; Eisen, Edward & Takuchi Kamura, Philipp Borchard
Object Type: Report
System: The UNT Digital Library
Improvement of the Q-factor measurement in RF cavities (open access)

Improvement of the Q-factor measurement in RF cavities

N/A
Date: November 28, 2012
Creator: Xu, W.; Belomestnykh, S.; Ben-Zvi, Ilan & Hahn, H.
Object Type: Report
System: The UNT Digital Library
The Greensheet (Houston, Tex.), Vol. 43, No. 521, Ed. 1 Wednesday, November 28, 2012 (open access)

The Greensheet (Houston, Tex.), Vol. 43, No. 521, Ed. 1 Wednesday, November 28, 2012

Free weekly newspaper that includes business and classified advertising.
Date: November 28, 2012
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Femtosecond X-ray Pulse Characterization in Free-electron Lasers using a Cross-correlation Technique (open access)

Femtosecond X-ray Pulse Characterization in Free-electron Lasers using a Cross-correlation Technique

None
Date: November 28, 2012
Creator: Ding, Y.; Decker, F. J.; Emma, P.; Feng, C.; Field, C.; Frisch, J. et al.
Object Type: Article
System: The UNT Digital Library
Diagnosis of In Situ Metabolic State and Rates of Microbial Metabolism During In Situ Uranium Bioremediation with Molecular Techniques (open access)

Diagnosis of In Situ Metabolic State and Rates of Microbial Metabolism During In Situ Uranium Bioremediation with Molecular Techniques

The goal of these projects was to develop molecule tools to tract the metabolic activity and physiological status of microorganisms during in situ uranium bioremediation. Such information is important in able to design improved bioremediation strategies. As summarized below, the research was highly successful with new strategies developed for estimating in situ rates of metabolism and diagnosing the physiological status of the predominant subsurface microorganisms. This is a first not only for groundwater bioremediation studies, but also for subsurface microbiology in general. The tools and approaches developed in these studies should be applicable to the study of microbial communities in a diversity of soils and sediments.
Date: November 28, 2012
Creator: Lovley, Derek R
Object Type: Report
System: The UNT Digital Library
A General Investigation of Optimized Atmospheric Sample Duration (open access)

A General Investigation of Optimized Atmospheric Sample Duration

ABSTRACT The International Monitoring System (IMS) consists of up to 80 aerosol and xenon monitoring systems spaced around the world that have collection systems sensitive enough to detect nuclear releases from underground nuclear tests at great distances (CTBT 1996; CTBTO 2011). Although a few of the IMS radionuclide stations are closer together than 1,000 km (such as the stations in Kuwait and Iran), many of them are 2,000 km or more apart. In the absence of a scientific basis for optimizing the duration of atmospheric sampling, historically scientists used a integration times from 24 hours to 14 days for radionuclides (Thomas et al. 1977). This was entirely adequate in the past because the sources of signals were far away and large, meaning that they were smeared over many days by the time they had travelled 10,000 km. The Fukushima event pointed out the unacceptable delay time (72 hours) between the start of sample acquisition and final data being shipped. A scientific basis for selecting a sample duration time is needed. This report considers plume migration of a nondecaying tracer using archived atmospheric data for 2011 in the HYSPLIT (Draxler and Hess 1998; HYSPLIT 2011) transport model. We present two related …
Date: November 28, 2012
Creator: Eslinger, Paul W. & Miley, Harry S.
Object Type: Report
System: The UNT Digital Library
Fabrication of metal matrix composite by semi-solid powder processing (open access)

Fabrication of metal matrix composite by semi-solid powder processing

Various metal matrix composites (MMCs) are widely used in the automotive, aerospace and electrical industries due to their capability and flexibility in improving the mechanical, thermal and electrical properties of a component. However, current manufacturing technologies may suffer from insufficient process stability and reliability and inadequate economic efficiency and may not be able to satisfy the increasing demands placed on MMCs. Semi-solid powder processing (SPP), a technology that combines traditional powder metallurgy and semi-solid forming methods, has potential to produce MMCs with low cost and high efficiency. In this work, the analytical study and experimental investigation of SPP on the fabrication of MMCs were explored. An analytical model was developed to understand the deformation mechanism of the powder compact in the semi-solid state. The densification behavior of the Al6061 and SiC powder mixtures was investigated with different liquid fractions and SiC volume fractions. The limits of SPP were analyzed in terms of reinforcement phase loading and its impact on the composite microstructure. To explore adoption of new materials, carbon nanotube (CNT) was investigated as a reinforcing material in aluminum matrix using SPP. The process was successfully modeled for the mono-phase powder (Al6061) compaction and the density and density distribution were …
Date: November 28, 2012
Creator: Wu, Yufeng
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Diagnosis of In Situ Metabolic State and Rates of Microbial Metabolism During In Situ Uranium Bioremediation with Molecular Techniques (open access)

Diagnosis of In Situ Metabolic State and Rates of Microbial Metabolism During In Situ Uranium Bioremediation with Molecular Techniques

The goal of these projects was to develop molecule tools to tract the metabolic activity and physiological status of microorganisms during in situ uranium bioremediation. Such information is important in able to design improved bioremediation strategies. As summarized below, the research was highly successful with new strategies developed for estimating in situ rates of metabolism and diagnosing the physiological status of the predominant subsurface microorganisms. This is a first not only for groundwater bioremediation studies, but also for subsurface microbiology in general. The tools and approaches developed in these studies should be applicable to the study of microbial communities in a diversity of soils and sediments.
Date: November 28, 2012
Creator: Lovley, Derek R.
Object Type: Report
System: The UNT Digital Library
Sweetwater Reporter (Sweetwater, Tex.), Vol. 114, No. 270, Ed. 1 Wednesday, November 28, 2012 (open access)

Sweetwater Reporter (Sweetwater, Tex.), Vol. 114, No. 270, Ed. 1 Wednesday, November 28, 2012

Daily newspaper from Sweetwater, Texas that includes local, state, and national news along with advertising.
Date: November 28, 2012
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Yoakum Herald-Times (Yoakum, Tex.), Vol. 120, No. 48, Ed. 1 Wednesday, November 28, 2012 (open access)

Yoakum Herald-Times (Yoakum, Tex.), Vol. 120, No. 48, Ed. 1 Wednesday, November 28, 2012

Weekly newspaper from Yoakum, Texas that includes local, state, and national news along with advertising.
Date: November 28, 2012
Creator: McCracken, Michael S.
Object Type: Newspaper
System: The Portal to Texas History
Palacios Beacon (Palacios, Tex.), Vol. 105, No. 48, Ed. 1 Wednesday, November 28, 2012 (open access)

Palacios Beacon (Palacios, Tex.), Vol. 105, No. 48, Ed. 1 Wednesday, November 28, 2012

Weekly newspaper from Palacios, Texas that includes local, state, and national news along with advertising.
Date: November 28, 2012
Creator: West, Bert
Object Type: Newspaper
System: The Portal to Texas History
Jackson County Herald-Tribune (Edna, Tex.), Vol. 106, No. 1, Ed. 1 Wednesday, November 28, 2012 (open access)

Jackson County Herald-Tribune (Edna, Tex.), Vol. 106, No. 1, Ed. 1 Wednesday, November 28, 2012

Weekly newspaper from Edna, Texas that includes local, state, and national news along with advertising.
Date: November 28, 2012
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Rattler (San Antonio, Tex.), Vol. 100, No. 11, Ed. 1 Wednesday, November 28, 2012 (open access)

The Rattler (San Antonio, Tex.), Vol. 100, No. 11, Ed. 1 Wednesday, November 28, 2012

Student newspaper from St. Mary's University in San Antonio, Texas that includes campus news along with advertising.
Date: November 28, 2012
Creator: St. Mary's University (San Antonio, Tex.)
Object Type: Newspaper
System: The Portal to Texas History
The Cuero Record (Cuero, Tex.), Vol. 118, No. 2, Ed. 1 Wednesday, November 28, 2012 (open access)

The Cuero Record (Cuero, Tex.), Vol. 118, No. 2, Ed. 1 Wednesday, November 28, 2012

Weekly newspaper from Cuero, Texas that includes local, state and national news along with advertising.
Date: November 28, 2012
Creator: Rea, Glenn
Object Type: Newspaper
System: The Portal to Texas History
The Examiner (Navasota, Tex.), Vol. 118, No. 17, Ed. 1 Wednesday, November 28, 2012 (open access)

The Examiner (Navasota, Tex.), Vol. 118, No. 17, Ed. 1 Wednesday, November 28, 2012

Weekly newspaper from Navasota, Texas that includes local, state, and national news along with advertising.
Date: November 28, 2012
Creator: McDonald, Scott
Object Type: Newspaper
System: The Portal to Texas History
Terrorism and Security Issues Facing the Water Infrastructure Sector (open access)

Terrorism and Security Issues Facing the Water Infrastructure Sector

This report examines the possibility of damage to or destruction of the nation's water supply and water quality infrastructure by terrorist attack or natural disaster, which could disrupt the delivery of vital human services in this country, threatening public health and the environment, or possibly causing loss of life. Interest in such problems increased after the September 11, 2001, terrorist attacks in the United States.
Date: November 28, 2012
Creator: Copeland, Claudia
Object Type: Report
System: The UNT Digital Library