2,170 research outputs found

    Sanitary forum: The Royal Society of Tasmania and public health reform 1853-1911

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    In the nineteenth century Tasmania experienced a number of epidemic diseases like scarlet fever, diphtheria and, most deadly of all, typhoid. Sanitary reformers attributed the epidemics to contaminated water supplies, accumulations of decomposed rubbish, poorly built houses and the absence of underground drainage schemes. Leading reformers, most notably Dr Edward Swarbreck Hall, were Fellows of The Royal Society of Tasmania and used the society as a forum to identify the causes of epidemic disease and to explain the public health reforms that would prevent death and illness. Lectures and papers by medical doctors, sanitary engineers, and statisticians drew on the latest thinking in sanitary science and helped build momentum for public support of such reforms. This paper examines the arguments of sanitary reformers and the reaction to their interventions and concludes that between 1853 and 1911 the Royal Society was the main forum for debate on public health reform in Tasmania

    The antiquarian mind: Tasmanian history and the Royal Society of Tasmania 1899-1927

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    Between 1899 and 1904, and again between 1921 and 1927, enthusiasts of Tasmanian history formed the Historical Section of the Royal Society of Tasmania. They sought to highlight Tasmania's rich historical traditions. They were especially interested in the deeds of foundation heroes such as explorers, governors and pioneers, but tended to ignore convict and Aboriginal history. They sought to preserve historical documents, save existing monuments and erect new monuments to their heroes, celebrate key events in Tasmania's past, and ensure places were given suitably historical names. They held lectures and published papers on their favourite aspects of Tasmanian history. They believed that history could teach valuable lessons if properly studied. This paper considers the activities of history enthusiasts in Hobart and Launceston and concludes that in small ways these enthusiasts contributed to an understanding of Tasmania's past and helped to create a public awareness of early Tasmanian achievements

    A Recursion Formula for Moments of Derivatives of Random Matrix Polynomials

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    We give asymptotic formulae for random matrix averages of derivatives of characteristic polynomials over the groups USp(2N), SO(2N) and O^-(2N). These averages are used to predict the asymptotic formulae for moments of derivatives of L-functions which arise in number theory. Each formula gives the leading constant of the asymptotic in terms of determinants of hypergeometric functions. We find a differential recurrence relation between these determinants which allows the rapid computation of the (k+1)-st constant in terms of the k-th and (k-1)-st. This recurrence is reminiscent of a Toda lattice equation arising in the theory of \tau-functions associated with Painlev\'e differential equations

    A recursion formula for moments of derivatives of random matrix polynomials

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    We give asymptotic formulae for random matrix averages of derivatives of characteristic polynomials over the groups USp(2N), SO(2N) and O−(2N). These averages are used to predict the asymptotic formulae for moments of derivatives of L-functions which arise in number theory. Each formula gives the leading constant of the asymptotic in terms of determinants of hypergeometric functions. We find a differential recurrence relation between these determinants that allows the rapid computation of the (k+1)st constant in terms of the kth and (k−1)st. This recurrence is reminiscent of a Toda lattice equation arising in the theory of τ-functions associated with Painlevé differential equations

    Model system development and uncertainty for the provisionary management of extreme floods in large river basins

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    International audienceA research project is introduced in which a modelling system is being developed to quantify risks of extreme flooding in large river basins. In the system, computer models and modules are coupled to simulate the functional chain: hydrology - hydraulics - polder diversion - dyke failure - flooding - damage estimate - risk assessment. In order to reduce uncertainty in flood frequency analyses, data sets are complimented with information from historical chronicles and artwork. Probable maximum precipitation and discharge are calculated to indicate upper bounds of meteorological and hydrological extremes. Uncertainty analysis is investigated for different degrees of model complexity and compared at different basin scales

    CEDIM Risk Explorer ? a map server solution in the project "Risk Map Germany"

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    International audienceThe project "Risk Map Germany" at the Center for Disaster Management and Risk Reduction Technology (CEDIM) aims at visualizing hazards, vulnerabilities and risks associated with natural and man made hazards. CEDIM as an interdisciplinary project unified various expertise like earthquake, storm and flood disaster research. Our aim was to visualize the manifold data exploration in thematic maps. The implemented Web-GIS solution "CEDIM Risk Explorer" represents the map visualizations of the different risk research. This Web-GIS integrates results from interdisciplinary work as maps of hazard, vulnerability and risk in one application and offers therefore new cognitions to the user by enabling visual comparisons. The present paper starts with a project introduction and a literature review of distributed GIS environments. Further the methods of map realization and visualization in the selected technical solution is worked out. Finally, the conclusions give the perspectives for future developments to the "CEDIM Risk Explorer"
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