1,722,084 research outputs found

    Warum Piero Terracina sein Schweigen brach

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    Piero Terracina wurde mit 14 Jahren von Rom nach Auschwitz deportiert, wo man seine gesamte Familie ermordete. Erst 1992 begann er, seine Geschichte zu erzählen, ist seither jedoch unermüdlich als Zeitzeuge unterwegs und in Italien längst eine Institution. Dieses Buch, das seine Geschichte und Reaktionen auf seine Tätigkeit mit interdisziplinären Texten zur Problematik der Shoah verknüpft, soll ihn einem deutschen Publikum bekannter werden lassen

    Qualitative behavior of the two-phase entropy solution of a forward-backward parabolic problem

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    We discuss some qualitative aspects of a forward-backward parabolic problem that has been introduced in [L. C. Evans and M. Portilheiro, Math. Models Methods Appl. Sci., 14 (2004), pp. 1599-1620], [C. Mascia, A. Terracina, and A. Tesei, Evolution of stable phases in forwardbackward parabolic equations, in Asymptotic Analysis and Singularities, Mathematical Society of Japan, Tokyo, 2007, pp. 451-478] and further analyzed in [C. Mascia, A. Terracina, and A. Tesei, Arch. Ration. Mech. Anal., 194 (2009), pp. 887-925]. This problem arises in models of phase transition in which two stable phases are separated by an interface. In particular, we consider here the problem of the extension in time of the solution constructed in [C. Mascia, A. Terracina, and A. Tesei, Arch. Ration. Mech. Anal., 194 (2009), pp. 887-925]. We analyze the regularity of the solution u defined in a domain R × (0, T) and give an estimate, depending on the initial datum, of the number of convex regions of the function u(·, t) for every t ε (0, T). Copyright © 2011 by SIAM

    Investigating Reddit to detect subreddit and author stereotypes and to evaluate author assortativity

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    In recent years, Reddit has attracted the interest of many researchers due to its popularity all over the world. In this article, we aim at providing a contribution to the knowledge of this social network by investigating three of its aspects, interesting from the scientific viewpoint, and, at the same time, by analysing a large number of applications. In particular, we first propose a definition and an analysis of several stereotypes of both subreddits and authors. This analysis is coupled with the definition of three possible orthogonal taxonomies that help us to classify stereotypes in an appropriate way. Then, we investigate the possible existence of author assortativity in this social medium; specifically, we focus on co-posters, that is, authors who submitted posts on the same subreddit

    Euphorbia terracina (BOL0223094)

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    Kingdom: PlantaeDivision: MagnoliophytaClass: EudicotsOrder: MalpighialesFamily: EuphorbiaceaeScientific name: Euphorbia terracina L.Specimen barcode: BOL022309
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