1,720,965 research outputs found

    Approcci multidisciplinari per la ricostruzione del paesaggio di una grande strada romana. La via Appia al Valico degli Aurunci

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    Il volume illustra i risultati delle ricerche interdisciplinari (archeologiche, topografiche, geologiche, fisiche, chimiche e informatiche) condotte dalle unità di ricerca del DiLBEC e del CNR-ITABC coinvolte nell'ambito di un progetto di ricerca FIRB_2010 volto allo studio interdisciplinare di una grande strada romana, la Via Appia Claudia al valico dei Monti Aurunci tra Fondi e Itri, come modello di approccio metodologico multidisciplinare

    Studio aerofotogrammetrico finalizzato della valle di Sant’Andrea (Fondi-Itri): caratterizzazione delle cave e analisi di tracce di attività estrattive

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    Il contributo presenta una parte dei risultati delle ricerche archeologiche a carattere aerotopografico condotte dall’autrice lungo la via Appia, nel tratto tra Fondi e Itri, in provincia di Latina, lungo la Valle di Sant’Andre nell’ambito del progetto FIRB-Appia antica. Impostate sui principi metodologici e operativi propri della disciplina topografica e dei metodi cartografici, esse sono state finalizzate alla redazione di una mappatura di dettaglio degli spazi di cava, così da sottolineare le tracce dell’attività estrattiva antica. Indagini di fotointerpretazione e rilievi aerofotogrammetrici dei versanti corroborate da verifiche dirette sul terreno hanno definito, infatti, con particolare chiarezza la morfologia del sito e le modificazioni antropiche che lo hanno interessato, evidenziando in dettaglio le consistenti tracce riferibili a un’articolata attività di estrazione praticata in epoca romana in funzione della costruzione del tracciato della via Appia

    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

    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
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