1,721,239 research outputs found

    Le origini di una grande amicizia: Mattei e Marcora negli anni della Resistenza.

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    La ricostruzione dell'attività svolta da mattei e marcora durante la Resistenza

    Mattei e il Mezzogiorno: le idee, i fatti, i sogni

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    Il saggio ricostruisce il rapporto tra il fondatore dell'Eni, Enrico Mattei, e il Mezzogiorno inquadrandolo da tre prospettive. La prima è quella delle idee e degli ideali, per comprendere le origini degli interessi di Mattei per la questione meridionale. La seconda è quella dei fatti e dunque della concretizzazione, o almeno dell'avvio dei progetti per l'industrializzazione del Mezzogiorno: dal gas, al petrolio, dal petrolchimico all'elettronucleare. La terza è quella delle sfide o dei sogni, che portano a collocare l'azione svolta da Mattei nel Sud e per il Su nel più ampio contesto sia delle strategie di espansione internazionale dell'Eni sia del ruolo che il Mezzogiorno poteva assumere nel Mediterraneo

    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

    Cholinergic stimulation of human microcytoma cell line H69.

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    Experiments were addressed to investigate the mechanisms by which cholinergic stimulation is coupled to the enhancement of proliferation of small cell lung cancer cells H69. Muscarinic stimulation triggers the release of cytosolic Ca2+ and of inositol(1,4,5) trisphosphate with comparable time courses. The presence of alpha-bungarotoxin or the absence of Ca2+ in external medium suppresses enhancement of clonal growth induced by brief applications of nicotine. Here we suggest that Ca2+ mobilization represents a trigger for the enhancement of small cell lung cancer cell proliferation upon cholinergic stimulation

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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