1,721,813 research outputs found
Islam-Occidente. Nuove identità religiose
No full textL'Islam costituisce un variegato universo rispetto al quale l'occidente manifesta le proprie rassicuranti incertezze. Nuove identità religiose e la necessità di costruire un diritto rispettoso della religione e non della religiosità sono le sfide del giurista moderno
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
ALTEA, a facility for the International Space Station: studying particle fluxes and cerebral functions in orbit
No full textThe ALTEA facility is aimed at studying particle fluxes and cerebral functions in orbit. A scheduled “ALTEA project” for this facility is devoted to investigation of the possible functional impairment of the brain in the space environment due to particle radiation. An animal model for this experiment is being tested using mice irradiated in accelerators and concurrent electrophysiological investigation. Multi-disciplinary international collaboration is contributing to the development of the ALTEA facility, and to running the ALTEA experiment. The basic instrumentation is composed by 12 active particle silicon telescopes (assembled in pairs), one ElectroencephaloGrapher (EEG) and a visual stimulator, arranged in a helmet shaped device. This instrumentation is able to measure the dynamics of the functional status of the visual system, the cortical electrophysiological activity, the passage of each particle in a pre-determined energy window through the brain. These three basic instruments can be used separately or in any combination, maintaining a common time reference thus permitting several different experiments (radiation environment studies, particle physics, electrophysiology, psychophysics, etc.). ALTEA is scheduled to fly in the International Space Station (ISS) in the spring of 2003. A precursor ("ALTEINO"), based on one silicon telescope, and one EEG will be launched in the Russian module of the ISS in early 2002 and will serve as discriminating dosimeter for the particle fluences inside the ISS, and to construct a baseline for the astronaut's electrophysiological activity in orbit
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
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