1,720,985 research outputs found

    In cammino verso Scanno. Percorsi di storia e di scienza

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    Una descrizione del tessuto sociale dell'amabile cittadina abruzzese di Scann

    Lo spazio domestico e i caratteri dei luoghi : l'area dell'Abbazia di San Vito a Polignano a mare

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    Nel progetto sviluppato sull'area dell'Abbazia di San Vito a Polignano da alcuni docenti del Politecnico di Bari e della Bilkent University di Ankara, è stato compiuto un lavoro di "rammento" del disperso agglomerato di case esistenti. Un esercizio di sano "realismo". Non si è immaginato cosa l'area di San Vito avrebbe potuto essere, né ciò che, secondo il nostro giudizio, potrebbe diventare. Ma si è voluto dare valore a tutto ciò che esiste, per trasformare questi manufatti sparsi in un piccolo organismo urbano che si rapporta alle emergenze naturali e architettoniche: l'insenatura del mare con la possente massa dell'Abbazia e la torre saracena, e la bellissima campagna intorno miracolosamente protetta. Occorre, in tal modo, "ri-costruire" il luogo

    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

    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

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis

    Cytogenetic effect of thiabendazole and diphenylammine on cultured human lymphocytes: sister chromatid exchanges and cell cycle delay

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    The two fungicides analysed in this paper, Thiabendazole (TBZ) and Diphenylammine (DPA), are among the pesticides found in higher concentration in fruits and vegetables sold in Tuscany. These compounds were tested in "in vitro" lymphocyte cultures at different concentrations and using 3 protocols; protocol 1: the cultures were treated with the fungicides for 48 h; protocols 2 and 3: the cultures were treated with fungicides for 4 h in the presence or absence of the metabolic activator S9 mix. Both fungicides produced a slight increase in the SCE frequency in the 48 h treatment, at the higher non-toxic concentrations tested, but not when exposed for only 4 h, with or without S9 mix. As far as concerns the Proliferation Rate Index (i.e. the number of first, second and third mitoses), Thiabendazole also produced a significant decrease in the replication rate of the treated cultures, while Diphenylammine did not produce any effect
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