1,050 research outputs found

    Fourier Based Fast Multipole Method for the Helmholtz Equation

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    The fast multipole method (FMM) has had great success in reducing the computational complexity of solving the boundary integral form of the Helmholtz equation. We present a formulation of the Helmholtz FMM that uses Fourier basis functions rather than spherical harmonics. By modifying the transfer function in the precomputation stage of the FMM, time-critical stages of the algorithm are accelerated by causing the interpolation operators to become straightforward applications of fast Fourier transforms, retaining the diagonality of the transfer function, and providing a simplified error analysis. Using Fourier analysis, constructive algorithms are derived to a priori determine an integration quadrature for a given error tolerance. Sharp error bounds are derived and verified numerically. Various optimizations are considered to reduce the number of quadrature points and reduce the cost of computing the transfer function.Comment: 24 pages, 13 figure

    Low cost ablative heat shields for space shuttles

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    Development of low cost ablative heat shields for space shuttle

    World's longest surviving liver-pancreas recipient

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    In July 1988, the liver and pancreas of a cadaveric donor were transplanted separately into a man with type 1 diabetes with end-stage chronic hepatitis B virus. Two features of the operation may help explain the patient's current status as the longest-lived liver-pancreas recipient. One was enteric drainage of pancreatic exocrine secretions. The other was delivery of the pancreas venous effluent to the host portal system and then directly to the hepatic allograft. © 2007 AASLD

    Education & Practice (Newsletter of the Section on Education of Lawyer, Virginia State Bar) - v. 23, No. 1 (Fall 2014)

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    Contents Learning Styles and Problem-Solving: What Difference Does Our Teaching Make?, by Eric DeGroff, Professor of Law at Regent University Chair’s Column, by Professor Jim Moliterno Section’s Website Update Law Faculty News News and Events Around the Commonwealth CALL FOR NOMINATIONS William R. Rakes Leadership in Education Award 2014-2015 Board of Governor

    Education & Practice (Newsletter of the Section on Education of Lawyer, Virginia State Bar) - v. 22, No. 2 (Spring 2014)

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    Contents The Richmond Legal Development Center: Virginia’s First Legal Incubator, by Eppa Hunton VI, the Managing Director of the Richmond Legal Development Center From Crisis to Innovation, by Jeffrey Brauch, the Dean of Regent University School of Law Chair’s Column, by Professor A. Benjamin Spencer of Washington and Lee School of Law Section’s Website Update Virginia Supreme Court Senior Justice Elizabeth B. Lacy Receives Leadership in Education Award Law Faculty News News and Events Around the Commonwealth 2013-2014 Board of Governor

    Education & Practice (Newsletter of the Section on Education of Lawyer, Virginia State Bar) - v. 25, No. 1 (Fall 2016)

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    What You Do and Do Not Learn in Law School: A Family Law Associate’s Perspective Hiring and Supervising New Lawyers: A Family Law Partner’s Perspective Chair’s Column Law Faculty News and News and Events Around the Commonwealth Call for Nomination: William R. Rakes Leadership in Education Award 2016-2017 Board of Governor

    How child abuse hotlines hurt the very children they’re trying to protect

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    The recent media obsession with “free range” parenting has illuminated a policy issue which rarely affects parents who debate free range parenting: the exploitation of child abuse reporting hotlines

    No Chance to Prove Themselves: The Rights of Mentally Disabled Parents Under the Americans with Disabilities Act and State Law

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    This article explores the relationship between state child welfare laws that terminate parental rights and the federal Americans with Disabilities Act (ADA). The article begins by analyzing the application of the ADA to termination of parental rights proceedings against parents with mental disabilities. It then surveys state child welfare laws, focusing on the treatment of parents under New York State law. The article concludes by advocating for a change to reflect the principles of the ADA in state laws and in practice

    Traumatic Brain Injury and the Americans with Disabilities Act: Implications for the Social Work Profession

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    The practice of social work has been greatly affected by the Americans with Disabilities Act of 1990 (ADA). Title I of the statute prohibits discrimination against people with disabilities, including the increasing number of workers who are returning to work after a traumatic brain injury (TBI). This article examines the extent to which the ADA protects those with TBI from being harassed, being denied reasonable workplace accommodations, or suffering other adverse actions related to perceived discrimination. To do so, it relies on judicial decisions from U.S. federal courts involving alleged workplace discrimination of this population. Implications for social work practice are noted with the intent of increasing ADA awareness among professionals providing services to people who meet the criteria for disability under the ADA as well as to those persons who do not. The authors hope to encourage social workers to rely on case law analysis as a mechanism to provide further evidence of the systematic problems faced by people with TBI and thus increase their visibility
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