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Ettore Majorana a Napoli: la testimonianza dell’allieva Gilda Senatore
No full textGilda Senatore seguì come studentessa il corso di Fisica Teorica che Ettore Majorana, a seguito della nomina a professore ordinario presso la Regia Università di Napoli, svolse tra il 13 Gennaio e la fine di Marzo del 1938 (prima di scomparire in circostanze non ancora chiarite). A lei Majorana lasciò un gruppo di fogli manoscritti, che ora sono depositati presso la Domus Galileiana di Pisa e che sono stati riprodotti nel volume E. Majorana, Lezioni all'Università di Napoli. In questo lavoro è riportata una testimonianza di questa allieva di Majorana che riguarda sia il corso di Fisica Teorica, sia i fogli manoscritti, e che fa piena chiarezza sul numero e sul nome di coloro che erano presenti alle lezioni. Per motivi di completezza, la testimonianza è accompagnata da un nota (a cura di F. Guerra e N. Robotti) sull'attività scientifica e accademica di Majorana, comprensiva anche di un elenco aggiornato delle sue pubblicazioni
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
Eustachio Manfredi e la prima conferma osservativa della teoria dell'aberrazione annua della luce
No full text
Il laboratorio storico in un insegnamento universitario : l'esperienza del corso di laboratorio di astronomia e astrofisica
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
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