101,978 research outputs found

    Ideazione, progettazione ed ottimizzazione di un supporto modulare per scale per interni

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    L’obbiettivo principale del presente lavoro consta nell’ideazione, progettazione, modellazione, ottimizzazione e analisi ad elementi finiti di un supporto modulare per scale per interni, regolabile in altezza e in lunghezza in accordo con le specifiche fornite dall’azienda committente. Il contributo innovativo del lavoro consiste nel garantire la possibilità di comporre un’ampia gamma di tipologie di scale prefabbricate nel modo più vario possibile a partire dagli stessi componenti standard di base permettendo, contemporaneamente, significative variazioni nelle dimensioni della pedata e dell’alzata, con possibilità di regolazione diretta durante il montaggio

    Osservazioni immunoistochimiche su componenti del sistema nervoso intramurale del solco reticolare di agnello lattante.

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    The aim of this study was to investigate the presence and distribution of nitric oxide synthase (NOS) and substance P neuropeptide (SP) in the intramural nervous structures of the reticular groove in the suckling lamb. Tissue sections were stained by immunohistochemical methods. NOS and SP-immunoreactive nerve cell bodies and fibers were found in the entire extent of the reticular groove. Nitrergic neurons and fibers were more numerous in the ventral part of the reticular groove, in particular in its floor. SP-immunoreactive nerve fibers and cells, on the contrary, were more concentrated in the lips of the reticular groove

    Bibliographie Hilarion G. Petzold 1958 – 2009 mit Anhang als Einführung

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    Dieses Archiv enthält die Gesamtbibliographie der Werke des Autors nebst einiger Texte „Über H. G. Petzold“ im Schlussteil der Bibliographie sowie einen Anhang mit einer Einführung in die Architektur des Werkes in seinem wissenslogischen Aufbau als Ausarbeitung seines „Tree of Science Modells“ (2007).This archive contains the complete bibliography of the author and some texts about H. G. Petzold, moreover an epilogue with an introduction to the architecture of the works in its epistemological structure and composition and as an elaborations of Petzold’s „Tree of Science Modell (2007).https://www.fpi-publikation.de/polyloge/01-2009-petzold-h-g-gesamtbibliographie-h-g-petzold-1958-2009-updating-november2009/peerReviewedpublishedVersio

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods

    Headache and Dural Enhancement: Two Case Studies of Different Treatable Pathologies

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    Background: Hypertrophic pachymeningitis (HP) and spontaneous intracranial hypotension are different treatable diseases, which should promptly be recognized and treated to prevent neurologic sequelae. Headache and dural enhancement are the main features of both diseases, thus differentiating between these 2 conditions can be difficult. Cases Description: We present 2 cases with headache and dural enhancement, in which the differential diagnosis was challenging at presentation because, in both cases, clear positional pain modification was not reported. Each patient was referred to us with the suspicion of a diagnosis actually affecting the other one. Based on further findings, which supported diagnosis of spontaneous intracranial hypotension in the first case and of HP in the second one, we briefly review clinical, radiologic, and laboratory features, which can help in the differential diagnosis. Conclusions: An accurate diagnostic workup is mandatory to distinguish among HP and intracranial hypotension

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