1,721,020 research outputs found
"Gestire per conservare: l'esperienza congiunta del Parco Naturale delle Alpi Marittime e del Parco Nazionale del Mercantour"
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Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
LAPAROSCOPIC NEPHRECTOMY SIMULATION IN LIVING RENAL DONORS WITH MULTIROW CT VOLUME RENDERING AND STEREOSCOPIC DISPLAY
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Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
La carta degli habitat per il Sito Natura 2000 Alpi Marittime: linee metodologiche per una corretta elaborazione
No full textLa vigente normativa nazionale ed europea in ambito ambientale ha come obiettivo primario la conservazione del patrimonio naturale secondo una visione sistemica delle componenti ambientali, naturali e antropiche. Il progetto della carta degli habitat, relativa al territorio del Sito della Rete Natura 2000 Alpi Marittime, nasce su queste premesse e costituisce la base cartografica di riferimento per il piano di gestione SIC sulla quale poter impostare linee d’azione mirate alla tutela, conservazione e pianificazione naturalistica. Il lavoro, che ha coinvolto più soggetti con competenze differenti, si è sviluppato seguendo diverse fasi metodologiche che hanno previsto una prima fotointerpretazione su ortofotocarte digitali seguita da rilievi fitosociologici e floristici in campo, la compilazione del database con l’attribuzione dei codici habitat facenti riferimento al sistema di classificazione Corine Biotopes ed, infine, analisi topologiche per la correzione di eventuali errori creatisi durante la fase di digitalizzazione e validazione. Il risultato di questo lavoro, ormai in fase conclusiva, risulta quindi una cartografia accurata degli habitat presenti all’interno del Sito Natura 2000 e classificati secondo il sistema CORINE Biotopes su cui poter impostare azioni mirate alla gestione dell’area di interesse comunitario
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