1,720,981 research outputs found
La geopolitica nella rete dei cavi
No full textI mutamenti, sempre più marcati, nello scacchiere geopolitico internazionale sono in parte riconducibili al dinamismo della società dell’informazione, che alimenta una nuova forma di leadership globale connessa al capitalismo di tipo immateriale e alla crescita esponenziale di un potere fondato sul digitale e sulla comunicazione. Ne consegue che il controllo delle infrastrutture sottomarine preposte al trasporto dei dati rivesta un ruolo strategico nella definizione delle dinamiche del potere globale. Tali infrastrutture costituiscono, oggigiorno, uno strumento formidabile di influenza geopolitica e geoeconomica. Il paper si propone di evidenziare, con sguardo critico, le posizioni di leadership delle principali potenze mondiali attraverso l’analisi geografica dei cavi sottomarini, che rappresentano la spina dorsale dell’internet globale.The striking changes in the international geopolitical arena can be partially related to the dynamism of the information society, which unleashes a new form of global leadership connected to a kind of immaterial capitalism and to the exponential growth of a power based on the digital and on communication. One of the key features on which digital power is based is given by the submarine infrastructures responsible for transporting data, able to reshape all the global dynamics. The control of such infrastructures represents, today, an impressive tool of geo-economic influence. The network of these communication cables, in fact, can physically merge different territories, strengthening their socio-economic, political and strategic ties. The paper aims to highlight, with a critical eye, the geopolitical and geoeconomic leadership positions of the main world powers through the geographical analysis of submarine cables, which represent the cornerstone of the global internet.Los cambios, cada vez más marcados, en el escenario geopolítico internacional se deben en parte al dinamismo de la sociedad de la información, que desencadena una nueva forma de liderazgo global vinculada al capitalismo inmaterial y al crecimiento exponencial de un poder basado en lo digital y en la comunicación. Entre las herramientas clave en las que se basa el poder digital, las infraestructuras de transporte de datos submarinas desempeñan un papel importante y rediseñan las dinámicas globales. El control de estas infraestructuras representa, hoy en día, un instrumento formidable de influencia geoeconómica. La red de cables de comunicación, de hecho, une físicamente los territorios, fortaleciendo sus propios vínculos socioeconómicos, políticos y estratégicos. El artículo pretende resaltar, con una perspectiva crítica, las posiciones de liderazgo geopolítico y geoeconómico de las principales potencias mundiales a través del análisis geográfico de los cables submarinos, que representan la infraestructura fundamental de la internet global
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
Variations 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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