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Presentazione
No full textIl lavoro espone gli obiettivi del volume e le tematiche affrontate nei saggi in esso contenuti di C. Taviani, A. Iodice, S. Teasdale, L. Piccinno e E. Ottonello Lomellini di Tabarca aventi ad oggetto l'Oltremare genovese fra tardo Medievo e la prima età moderna, con un focus specifico sulla presenza dei Lomellini nell'isola di Tabarc
L’oro rosso di Tabarca. Aspetti organizzativi e gestionali della pesca del corallo barbaresco tra XVI e XVIII secolo
No full textThe tradition of coral fishing in the western Mediterranean has deep historical roots and has long been of considerable economic and social importance. This practice not only stimulated the creation of new settlements and subsequent migrations, but also gave rise to highly profitable and long-lasting entrepreneurial ventures. The aim of this study is to investigate the dynamics and organisational characteristics of the Ligurian fishermen from the late Middle Ages to the early modern period. Particular attention will be paid to specific regions where the Genoese presence was closely linked to political events, such as Sardinia, Corsica, Sicily, the Barbary Coast and the island of Tabarca
The Economic Structure of Maritime Trade Calling at the Port of Genoa Through the Analysis of General Average Data (Sixteenth–Seventeenth Centuries)
No full textThis essay will discuss the preliminary results emerging from data extrap-olated from General Average (GA) procedures in Genoa, between the last decade of the sixteenth century and the 1640s. The wealth of data provided by GA procedures compensates for some of the gaps in quanti-tative data which have held back research on the local maritime economy. Methodologically, this essay further develops the insights of Giuseppe Felloni’s work on GA’s potential for economic analysis.1 The rich docu-mentation produced during GA procedures, from the original report (testimoniale) to the final apportioning of costs (calculus), provides details for typology of vessel, provenance, route, flag and cargo. This data sheds new light on Mediterranean maritime trade during a fundamental period of structural change, characterized by the emergence of new protagonists and the creation of new equilibria
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Impiego e conservazione della carta : primi spunti di ricerca sul territorio dell’antica diocesi di Como : secc. XIII-XV
No full textVariations on the Author
Full text link“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
Full text linkWe 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
Full text linkWe 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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