1,721,029 research outputs found
Il telescopio Cauchoix dell’Osservatorio Astronomico del Collegio Romano
No full textIl rifrattore acromatico Cauchoix, da 16 cm di apertura, acquisito dall'Osservatorio Astronomico del Collegio Romano nel 1825, è stato uno strumento fondamentale nella storia dell'astrofisica. Infatti nella seconda metà dell'800 Angelo Secchi, accoppiandolo col prisma obiettivo, lo utilizzò per ottenere la prima classificazione spettrale delle stelle. Installato su una nuova montatura equatoriale nel 1885 il telescopio è rimasto in servizio fino al 1980, quando fu smantellato. Recentemente abbiamo ritrovato il suo obiettivo di cui si erano perse le tracce per più di trent'anni. Questo ritrovamento ha permesso di ricostruire la configurazione meccanica e ottica dello strumento così come era al tempo di Secchi. Il telescopio è oggi esposto presso l'Osservatorio Astronomico di Roma a Monte Porzio Catone
In nomine patris: Discursive strategies and ideology in the Cosa Nostra family discourse
No full textThe article investigates how Cosa Nostra family discourse is characterized by a series of discursive strategies that give shape to specific ideological structures. By analysing a TV interview to the son of Bernardo Provenzano, boss of Cosa Nostra, it is possible to understand how the criminal values and practices are maintained and reproduced within the father-son relationship. Specifically, we show how the son justifies, legitimises or denies the criminal actions of his father. The ideology of Cosa Nostra seems to be based on the inter-generational cultural continuity of its members, on the family as main locus of adherence, reductionism of its mediatic image, amoralism as father-son relational constant and verticalism of the organisation as key framing device
Spuntik 50 mezzo secolo di osservazioni spaziali
No full textUn CD rom realizzato in occasione dei 50 anni dal lancio del primo satellite artificiale (lo Sputnik) che ripercorre il perodo fra il 1957 (lancio dello Spuntik) al 1969 ("lo sbarco" dell'uomo sulla Luna), raccontando non solo cio' che attiene prettamente all'astronomia, ma anche al costume, alla politica e ai grandi mutamenti socio culturali che hanno caratterizzato il nostro paese in quegli anni
Le scienze, lo Studio, i Gesuiti a Bologna nella metà del Seicento
No full textAl'esatta metà del XVII sec., quando G.D. Cassini giunge a Bologna e ottiene la cattedra di matematica e astronomia già tenuta da B. Cavalieri, la situazione era del tutto sfavorevole per i galileiani e in generale per i culturi della nuova scienza sperimentale. Gli studi di matematica, di meccanica e di astronomia erano coltivati soprattutto dal gruppo di studiosi gesuiti facenti capo a G.B. Riccioli e a F. Grimaldi.
Importante anche il ruolo di alcuni aristocratici dilettanti (da C. Malvasia a C Manzini). Lo scopo del lavoro è illuminare le vicende e le dinamiche che porteranno di lì a pochi anni non solo all'affermazione dell'autorità di Cassini, ma anche a creare le premesse per il radicamento della nuova scienza anche nell'università
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
Exploring Discourse Management in EFL Interactions between Italian University Students
No full textThis paper explores a corpus of elicited informal and formal interactions in English between pairs of Italian university students of Mediazione Linguistica e Culturale at the University of Padua (Italy) and a control corpus of interactions between English native-speaker students at the University of Melbourne (Australia). The aim is to investigate some aspects of the discourse co-constructed in the two corpora, as well as to gain insights into the Italian students’ discourse management ability. Specifically, the non-native and native uses of discourse markers, hedging expressions, and subject-verb contraction are investigated. The paper then discusses the findings and their implications for teaching spoken interaction to intermediate/advanced EFL learners
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
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