1,721,032 research outputs found
Limit Strains for Severe Accident Conditions. Description of an European Research Program and First Results
No full textThe failure strains for a large variety of specimens from reactor pressure vessel material will be investigated. Of special interest is the dependence of the failure strains on the size of the specimens. The research program and the first results are outlined. Based on the findings, limit strains will be proposed which should be acceptable under severe accident conditions
Thermal-Mechanical Behaviour of the Reactor Pressure Vessel and Corium Molten Pool in a Severe Accident Core Melt Down
No full textThe thermal and mechanical behaviour of a PWR vessel in consequence of a severe accident with core melt down and flooding of the reactor pit has been investigated by refined finite element analyses of the vessel and of the corium. Although the large corium mass and high residual power, the external water cooling avoids complete melt of the vessel but a deep thermal attack is observed in the inner part of the wall with a residual thickness of few centimetres. The high temperature gradients that establish through this thickness cause a high stress level and plastic deformations are observed in a large region of the vessel
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
Il ruolo attivo del lettore nella produzione letteraria post 3.11
No full textNegli ultimi decenni studi di psicotraumatologia clinica associati all’investigazione letteraria hanno evidenziato come la scriptoterapia sia un esercizio terapeutico efficace per combattere i sintomi dell’analfabetismo emozionale, prima risposta di un soggetto sottoposto a forte shock traumatico. Forme testimoniali orali o scritte rappresentano il risultato degli sforzi comunicativi della vittima, di cui il destinatario del messaggio assume un ruolo determinante. La presa di coscienza sociale è infatti fondamentale: la testimonianza da sola non basta per affrontare il trauma esperito e necessita di dialogismo; l’empatia dell’audience - sia essa il semplice psicoanalista - è di primaria importanza per l’elaborazione del trauma e la sua guarigione.
Questo breve studio intende dimostrare come la recente risposta letteraria alla triplice catastrofe dell’11 marzo 2011 avvalori l’importanza attribuita al ruolo del lettore dagli studi di psicanalisi applicati al prodotto letterario. La ricerca si snoda in quattro differenti fasi: una prima introduzione agli studi teorici nel campo della scriptoterapia; una seconda sezione che indaga il rapporto tra catastrofe e trauma trasposto in prodotto letterario attraverso la chiave di lettura nota come 3.11 e infine, una selezione di testi che approcciano il tema del Daishinsai e dell’incidente nucleare di Fukushima Daiichi attraverso la pluralità di stili (poetico, fictional e nonfictional) prestando particolare attenzione al target del prodotto letterario e alle dinamiche messe in atto dall’autore per sollecitare la compartecipazione attiva del lettore. Nelle conclusioni si cercherà di evidenziare la validità della teoria scriptoterapica osservando come, indipendentemente dalla diversa natura del prodotto letterario, non è l’autore, bensì il lettore che, attraverso la ricezione e la risposta empatica, consente all’opera testimoniale di diventare tale e attivare così il processo di guarigione dal trauma
Variabilità della produzione di embrioni bovini in vitro: effetto del toro e della diversa provenienza degli ovociti
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