4,564 research outputs found

    Volterra Centennial Meetings - Invited talks given by Christopher Baker at Arlington & Tempe

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    June 1996 saw two meetings to mark the centennial of the mathematical work of Vito Volterra, the first being held at the University of Texas at Arlington (organised by Professors Corduneanu and Kanner) and the second at the State University of Arizona at Tempe. In invited talks at each meeting, the first-named author presented joint work that follows, in chronological sequence, in this technical report. Christopher T H Baker & Arslang Tang 2 GENERALIZED HALANAY INEQUALITIES FOR VOLTERRA FUNCTIONAL DIFFERENTIAL EQUATIONS AND DISCRETIZED VERSIONS CHRISTOPHER T.H. BAKER 1 & ARSALANG TANG 2 Department of Pure and Applied Mathematics, The Victoria University of Manchester, England Abstract. Halanay's inequality provides a decreasing bound on a function satisfying a delay-differential inequality, subject to certain conditions, and it has been used by Halanay to analyze asymptotic stability of the zero solution of a certain delay-differential equations with fixed lag. The original ineq..

    Mapping and Classifying Settlement Locations

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    Center for International Earth Science Information Network (CIESIN), Columbia University; Flowminder Foundation; United Nations Population Fund (UNFPA); WorldPop, University of Southampton (Contributing Author). Georeferenced Infrastructure and Demographic Data for Development (GRID3)

    Book review: The theatrical public sphere, by Christopher B. Balme

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    Book review of: The theatrical public sphere, by Christopher B. Balme. Cambridge: Cambridge University Press, 2014; ISBN 9781107006836 (£60.00)Publisher PD

    Bridge inspections with unmanned aerial vehicles

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    submitted by Daniel T. Gillins, Assistant Professor, Christopher Parrish, Associate Professor, Oregon State University ; for Oregon Department of Transportation, Research Section.Title from PDF title page (viewed on April 8, 2020)."SPR 787."Covers OCLC #1149151397.This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Mode of access: Internet from the Oregon Government Publications Collection.Text in English

    Founders: Christopher Taylor

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    \ua9 2021 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. ‘Founders’ is an intermittent series of short, critical appreciations of scholars, researchers and others whose work and ideas, mainly in Britain, have made particularly sweeping, influential and foundational contributions to the development of historically- and archaeologically-informed landscape studies. This latest addition to the series concerns Christopher Taylor, whose death on 28th May 2021 was noted in the Landscapes editorial in issue 21.2

    "Historian of the spirit": an introduction to the life and ideas of Christopher H. Dawson, 1889-1970

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    What follows is an intellectual biography of the English Catholic historian Christopher Henry Dawson (1889-1970). If there is one overarching thesis to this dissertation, it is that Dawson's place within the history of Britain and the United States and within the historical academy in general has been hitherto underappreciated as a result of unfair categorization of his work by critics, and equally unhelpful credulous assessments imd subsequent politicization of his scholarship by overzealous admirers. Even though his perspectives will probably never be completely embraced by the historical academy due to current trends in historiography, it is hoped that this dissertation will demonstrate that Dawson’s scholarship is deserving of study because of the breadth of his intellectual and practical activity in Britain during the twentieth century, and his groundbreaking role in identifying the importance of culture and religious belief to historiography. The introduction includes a review of the most important secondary literature about Dawson that will be used throughout the work. The main text of the dissertation develops chronologically, and is in eight parts, each part representing a distinct phase of Dawson's life. Part Chie (1889-1914) examines the formative years of his childhood, his education, his conversion to the Roman Catholic Church, and how his experiences formed the basis for his opinions about history, religion, and world around him. Part Two (1915-1929) explores the schools of thought that shaped Dawson’s ideas as a young scholar, and the ideas expressed in his first two books. Part Three (1930-1934) represents the most active time of Dawson's career, and the period during which he became a widely read Catholic intellectual and historian of Europe. Part Four (1935-1939) examines Dawson's commentaries on European political movements during the 1930ร. Part Five (1940-1945) discusses Dawson's role as the vice-president of die wartime ecumenical movement 'The Sword of the Spirit', as well as his book written at the height of the Movement's success. Part Six (1946-1952) covers Dawson's ideas from his Gifford Lectures, and his interest in American Catholicism. Part Seven (1953-1962) covers Dawson's vision for American Catholics and education, and his position at Harvard University, which he held from 1958 until a series of strokes forced him to retire, and return to England in 1962. Part Eight (1963-1970) briefly discussed the events of the last years of his life. The conclusion serves as a summary of his contribution and legacy as a major twentieth-century intellectual

    Response surface models for the Elliott, Rothenberg, and Stock unit-root test

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    In this article, we present response surface coefficients for a large range of quantiles of the Elliott, Rothenberg, and Stock (1996, Econometrica 64: 813– 836) unit-root tests, for different combinations of number of observations, T, and lag order in the test regressions, p, where the latter can either be specified by the user or be endogenously determined. The critical values depend on the method used to select the number of lags. We present the command ersur and illustrate its use with an empirical example that tests the validity of the expectations hypothesis of the term structure of interest rates

    Multiple antigen-specific processing pathways for activating naive CD8+ T cells in vivo

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    Current knowledge of the processing of viral Ags into MHC class I-associated ligands is based almost completely on in vitro studies using nonprofessional APCs (pAPCs). This is two steps removed from real immune responses to pathogens and vaccines, in which pAPCs activate naive CD8+ T cells in vivo. Rational vaccine design requires answers to numerous questions surrounding the function of pAPCs in vivo, including their abilities to process and present peptides derived from endogenous and exogenous viral Ags. In the present study, we characterize the in vivo dependence of Ag presentation on the expression of TAP by testing the immunogenicity of model Ags synthesized by recombinant vaccinia viruses in TAP1-/- mice. We show that the efficiency of TAP-independent presentation in vitro correlates with TAP-independent activation of naive T cells in vivo and provide the first in vivo evidence for proteolytic processing of antigenic peptides in the secretory pathway. There was, however, a clear exception to this correlation; although the presentation of the minimal SIINFEKL determinant from chicken egg OVA in vitro was strictly TAP dependent, it was presented in a TAP-independent manner in vivo. In vivo presentation of the same peptide from a fusion protein retained its TAP dependence. These results show that determinant-specific processing pathways exist in vivo for the generation of antiviral T cell responses. We present additional findings that point to cross-priming as the likely mechanism for these protein-specific differences.<br/
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