1,720,977 research outputs found

    Mediterranean developed coasts: what future for the foredune restoration?

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    The feasibility and efficacy of soft engineering foredune restoration approaches still lack insight from research and monitoring activities, especially in areas where dunes are under persisting human disturbance. We evaluated the efficacy of Mediterranean foredune restoration in dune areas freely accessible to tourists. Foredunes were reconstructed using only sand already available at nearby places and consolidated through the plantation of seedlings of native ecosystem engineer species and foredune focal species. We monitored transplanted and spontaneous seedlings for one year to assess their mortality and growth in relation to the distance from the closest beach access, either formal or informal, as proxy of human disturbance.We also tested whether species differing in their ecology (i.e., affinity to a given habitat) and growth form showed different response to human disturbance. The relationship between seedling mortality and growth and the distance from the closest beach access was tested through Generalized Linear Mixed Models. We found a clear spatial pattern of seedling survival and growth, which decreased as the proximity to the closest beach access increased. Only invasive alien plants and erect leafy species showed to better perform at lower distances from beach accesses. In dune areas with a strong tourist vocation, foredune restoration should be coupled with the implementation of integrated management plans aiming at optimising the relationship between protection and use. Management plans should not only rely on passive conservation measures; rather they should include educational activities to stimulate a pro-environmental behaviour, increase the acceptance of behaviour rules and no entry zones, and actively engage stakeholders in long-term conservation

    Quando pubblicare diveniva oggetto di discussione. Un aspetto della polemica tra Facio e Valla

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    Negli anni ’40 del Quattrocento, gli umanisti italiani Lorenzo Valla e Bartolomeo Facio furono protagonisti di una dura polemica presso la corte aragonese di Napoli a proposito dei Gesta Ferdinandi Regis, un’opera storica sul padre di re Alfonso, scritta da Valla. Tra gli argomenti della polemica compare anche quello che riguarda la pubblicazione o meno dell’opera di Valla, che Facio discusse in una sua opera sui difetti dei Gesta, intitolata Invective in Laurentium Vallam. Valla protestò non solo per il contenuto delle Invective, ma soprattutto perché Facio aveva criticato un’opera che Valla considerava ancora inedita. La polemica offre un caso raro in cui due umanisti discutono sul concetto di pubblicazione nel XV secolo prima dell’apparizione della stampa

    Il sermone dottorale per la laurea bolognese in medicina di Biagio di Boemia

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    ITALLIANO: Il sermone anonimo conservato dal ms. Mantova, Bibl. Com. Teresiana 445, f. 8ra è stato pronunciato tra il 1304 e il 1306 a Bologna per il dottorato in medicina di Biagio di Boemia. Esso risulta interessante soprattutto come documento dell’autocoscienza accademica e professionale dei maestri dello Studio bolognese di arti e medicina, in un momento in cui non si è ancora formalmente compiuto il riconoscimento istituzionale delle sue due componenti, l’università degli scolari e il collegio dei dottori. In appendice si fornisce l’edizione del testo ENGLISH: The anonymous sermon preserved in the ms. Mantova, Bibl. Com. Teresiana 445, f. 8ra, was delivered in Bologna between 1304 and 1306 for Blasius of Bohemia’s doctorate in medicine. It is of particular interest as a document of the academic and professional status of the masters of the Bolognese Studio of Arts and Medicine, at a time when the institutional recognition of its two components, the University of Scholars and the College of Physicians, had not yet been formally completed. An edition of the text is given in the appendix

    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
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