240 research outputs found

    Reply to Crispin Wright and Richard Zach

    Full text link
    I am very grateful to Crispin Wright and Richard Zach for their thoughtful and penetrating comments on my book, The Boundary Stones of Thought (henceforth BST; unadorned page numbers below refer to this volume). The author of any reasonably long philosophical work will feel more confident in some of his claims than in others, and in studying Wright’s and Zach’s essays I have been struck by how often they home in on elements which gave me most trouble when writing the book and of which I was least certain having finished it. While that makes the job of defending my position harder, it is in one important respect comforting, for it suggests that the book was sufficiently clearly written to have enabled this meeting of minds. In a symposium of this kind, there can be few things more depressing than for the author to have to write: ‘X attributes to me such-and-such an argument, but what I really meant was instead this’. Thankfully, very little of that will be needed here. While Wright and Zach focus on different parts of BST (Zach on Chapters 6–8, Wright on Chapters 9 and 10), there are many thematic connections between their commentaries. Rather than give separate replies, then, I shall address the relevant topics in the order in which they appear in my book, dealing (as I hope) with all their main points as I go

    Zach\u27s News

    No full text
    Video from our Farm to Table Dinner Scholar Lions in London Story of author of Statesboro Blues\u27 comes home EBSCO Changing Default Result Sort Orde

    The new test for dishonesty in criminal law – lessons from the courts of equity?

    Full text link
    The Supreme Court decision in Ivey v Genting Casinos rejected the two stage test for dishonesty set out in R v Ghosh and replaced it with a single, objective test which transcends both criminal and civil law. This article asks whether it was correct to create a single test for dishonesty and in doing so, what role will subjectivity now play in the criminal law’s application of what is considered dishonest behaviour. Historically, the civil courts have beset with confusion as to the role of subjectivity in the test for dishonesty in light of Royal Brunei Airlines v Tan. The author will consider whether lessons can be learned from the civil courts and whether similar problems will trouble criminal law, particularly in light of criticism of the Ivey test and a preference, by some, for subjectivity to play a greater role in criminal liability for theft and other dishonesty offences

    Development of composite calibration standard for quantitative NDE by ultrasound and thermography

    Full text link
    Inspection of aircraft components for damage utilizing ultrasonic Non-Destructive Evaluation (NDE) is a time intensive endeavor. Additional time spent during aircraft inspections translates to added cost to the company performing them, and as such, reducing this expenditure is of great importance. There is also great variance in the calibration samples from one entity to another due to a lack of a common calibration set. By characterizing damage types, we can condense the required calibration sets and reduce the time required to perform calibration while also providing procedures for the fabrication of these standard sets. We present here our effort to fabricate composite samples with known defects and quantify the size and location of defects, such as delaminations, and impact damage. Ultrasonic and Thermographic images are digitally enhanced to accurately measure the damage size. Ultrasonic NDE is compared with thermography.This proceeding may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This proceeding appeared in Dayal, Vinay, Zach G. Benedict, Nishtha Bhatnagar, and Adam G. Harper. "Development of composite calibration standard for quantitative NDE by ultrasound and thermography." In AIP Conference Proceedings, vol. 1949, no. 1, p. 060006. AIP Publishing LLC, 2018, and may be found at DOI: 10.1063/1.5031552. Copyright 2018 The Author(s). Posted with permission

    Springdale, Leavenworth County

    No full text
    Baker, Zach, “Springdale, Leavenworth County,” Chapman Center Research Collections, https://ccrsresearchcollections.omeka.net/items/show/3.The author describes the life of an early Irish Catholic settlement in eastern Kansas. Originally a Quaker community, Irish immigration "exploded" there just after the Civil War, eventually stamping the town with a particular religious culture. After railroads made the Fort Riley mail road obsolete, Springdale declined. St. Thomas Catholic Church was a vital center for decades

    Connecting scattering, monodromy, and MST's renormalized angular momentum for the Teukolsky equation in Kerr spacetime

    No full text
    The Teukolsky equation describes perturbations of Kerr spacetime and is central to the study of rotating black holes and gravitational waves. In the frequency domain, the Teukolsky equation separates into radial and angular ordinary differential equations. Mano, Suzuki, and Takasugi (MST) found semi-analytic solutions to the homogeneous radial Teukolsky equation in terms of series of analytic special functions. The MST expansions hinge on an auxiliary parameter known as the renormalized angular momentum ν, which one must calculate to ensure the convergence of these series solutions. In this work, we present a method for calculating ν via monodromy eigenvalues, which capture the behavior of ordinary differential equations and their solutions in the complex domain near their singular points. We directly relate the monodromy data of the radial Teukolsky equation to the parameter ν and provide a numerical scheme for calculating ν based on monodromy. With this method we evaluate ν in different regions of parameter space and analyze the numerical stability of this approach. We also highlight how, through ν, monodromy data are linked to scattering amplitudes for generic (linear) perturbations of Kerr spacetime.The material is based upon work supported by NASA under award number 80GSFC21M0002. This work was also supported by NSF Grant No. PHY-1806447 to the University of North Carolina–Chapel Hill. The author also thanks A.C. Ottiwell, B. Wardell, M. Casals, and C.R. Evans for useful discussions. This work makes use of the Black Hole Perturbation Toolkit.https://iopscience.iop.org/article/10.1088/1361-6382/adf0d

    2007 - biennial review - 2009

    No full text
    Reporting period: July 1, 2007-June 30, 2009.Assembled and reviewed by: Reagan Waskom, Nancy Grice, Zach Hittle, Kevin Hackett
    corecore