1,721,951 research outputs found

    SCS Simulation: Special issue on software tools, techniques and architectures for computer simulation

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    Welcome to this special issue of Simulation: Transactions of the Society for Modeling and Simulation International, which is dedicated to software tools, techniques and architectures for computer simulation. The theme for this issue originated from the core areas of SIMUTools, a young conference organized by the Institute for Computer Sciences, Social Informatics, and Telecommunications Engineering (ICST). In its first three editions, from 2008 to 2010, SIMUTools attracted an energetic community of scientists and practitioners from academia and industry. If you haven’t yet attended the conference or its several colocated workshops, we encourage you to join as a submitting author or participant. Some of the articles in this issue are extended versions of the bestrated publications from SIMUTools 2009, in Rome, Italy, which we had the privilege of serving as program chairs

    Results from the Pierre Auger Observatory

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    The Pierre Auger Observatory has been designed to investigate the origin and nature of Ultra High Energy Cosmic Rays. The combination of information from a surface array, measuring the lateral distributions of secondary particles at the ground, and fluorescence telescopes, observing the longitudinal profile, provides an enhanced reconstruction capability and opens the way for a multi-messenger approach. A review of selected results is presented, covering the measurement of energy spectrum, arrival directions, and chemical composition. Finally, the motivation and the status for the ongoing major upgrade of the Observatory, AugerPrime, will be discussed with the emphasis given to future perspectives

    La Storia ecclesiastica di Eusebio: alle origini della storiografia cristiana

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    La sezione monografica raccoglie i contributi di una giornata di studio sulla Storia ecclesiastica di Eusebio di Cesarea

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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