1,722,190 research outputs found
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
Evolving artificial intelligence and robotics in medicine, evolving European law. Comparative remarks based on the surgery litigation
Full text linkThis article discusses key and critical tort law issues that have arisen from artificial intelligence and robotic medical applications. It aims at addressing the most recent European regulatory trajectories – ultimately traced by the Proposal for the Artificial Intelligence Act April 21 2021 – starting from the study of the legal issues that stemmed from the instructive experience of the US litigation on robotic surgery, which was foregoing on account of its cutting-edge and accelerated enhancement of the field. The recognition and analysis of the criticalities about products’ malfunctioning as well as the focus on other producers’ duties will lead the reader to reflect on the suitability of the legal rules planned by the European Authorities on the ground of the empirical features of the new step of technological progress in the field in question
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
Global weak solutions for systems of balance laws
No full textAbstractWe are concerned with global, weak solutions to the Cauchy problem for a (strictly hyperbolic) system of balance laws, ut+[F(u)]x=g(u), u(0, x)=u0(x).Assume that the initial data has small total variation. We give a sufficient condition for global existence of solutions in BV. Such a condition generalizes the one required by Dafermos and Hsiao in their paper [1]
Introduzione alla Psicofarmacologia. Aspetti sperimentali e clinici. Il rapporto medico e paziente in ambito militare.
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Studi di dinamica molecolare sui meccanismi di diffusione di piccole molecole organiche in materiali polimerici nanoporosi
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