1,720,986 research outputs found
Network Memory: The Influence of Past and Current Networks on Performance
No full textThis paper investigates the efficacy of alternative network structures from the perspective of time. We connect social structures to outcomes, using the history of relations to capture past social capital. In this way, time becomes a contingent factor with which to evaluate the relative efficacy of alternative network structures. We show that, in the Italian TV production industry, current structural holes rather than past ones, but past closure rather than current closure, help current network performance. Thus, structural holes and closure are both valuable but at different points in time
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
Memoria culturale, miti e credenze
No full textPer la prima volta 28 studiosi di vari ambiti disciplinari, con il coordinamento scientifico di un'antropologa culturale e di due archeologi esperti di preistoria del Mediterraneo e di studi sul mondo antico, offrono una ricostruzione della vita in Sardegna all'epoca dei nuraghi (XVIII-VIII sec. a.C.) prestando attenzione al rapporto delle genti nuragiche con l'ambiente, con il territorio, con le altre culture coeve, e destinando approfondimenti e sguardi interdisciplinari ai temi del lavoro e della produzione, della vita quotidiana, dei culti e dei riti, dei miti e delle credenze, della cultura materiale e del mutamento culturale di una civiltà complessa e dinamica. Il ricco apparato iconografico del volume, con tavole di ricostruzioni di ambienti e scene di vita, è l'esito della più aggiornata ricerca scientifica riguardo al tempo dei nuraghi
- …
