1,721,032 research outputs found
"Performing effective YBCO grain aligment and growth by silver and spurious phase addition."
No full textDa Vendola a Prodi. I media nelle campagne elettorali 2005-2006
No full textNel volume, frutto delle attività di ricerca e monitoraggio dell'Osservatorio di Comunicazione Politica dell'Università del Salento (diretto da Stefano Cristante), vengono prese in esame le differenti dinamiche delle elezioni regionali 2005 e delle politiche del 2006. Dall'osservazione sul campo è emersa una grande difformità tra i risultati delle due scadenze elettorali e delle campagne ad esse collegate, che nel libro viene esaminata dal punto di vista della carta stampata, della televisione e di internet.
Nel volume il curatore ha scritto l'introduzione ("Opposte campagne. Elezioni e media nelle regionali 2005 e nelle politiche 2006 in Puglia") e la postilla ("Il fine giustifica i media? Riflessioni sulla partecipazione collettiva nell'epoca della politica mediatica") oltre al saggio "Stili comunicativi e retoriche in Nichi Vendola", rielaborazione di un contributo precedentemente commissionato dalla Rivista Italiana di Comunicazione Pubblica (registrato nel Catalogo Prodotti)
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
I POLITICI CI METTONO LA FACCIA. FACEBOOK E LE ELEZIONI AMMINISTRATIVE DEL 2009 IN PUGLIA
No full textIl libro raccoglie i risultati di una ricerca quantitiva e qualitativa condotta dall'Osservatorio di Comunicazione Politica dell'Università del Salento sull'uso dei social network nella campagna elettorale per le elezioni ammistrative del 2009 in Puglia, mettendo in luce la crescente consapevolezza della classe politica locale nei confronti del peso strategico della Rete come strumento di comunicazione e il processo di professionalizzazione degli operatori incaricati di coordinare e gestire le campagne onlin
The influence of silver and Ag(In)alloy on Y-Ba-Cu-O equilibria around the Yb2Cu3O7-δ superconducting phase
No full textWe studied the chemical compatibility of Ag, Ag(In) alloy, Y2BaCuO5 (the so-called Y-211 green
phase) and YBa2Cu3O7 d (Y-123) phase in order to check if better grain growth and alignment with
minimum contamination were possible during the Y-123 melt texturing. We demonstrate that the addition
of silver to Y-123 always led to an enhanced texture. The typical microstructure of the composite
Y-123 plus Y-211 (that is believed essential for high critical currents in these High Tc superconductors)
was not disturbed by addition of silver up to 7.5 wt%, while higher concentrations of
metal led to a degradation of the texture. DTA TG analysis was used to investigate the influence of
Ag and Ag(In) alloy on the Y Ba Cu O equilibria around the Y-123 phase. We found a very unexpected
thermal behaviour, similar to an eutectic equilibrium, when the silver concentration was increased
to 35 wt%. We believe that this effect was essentially due to the increasingly higher concentration
of silver that could react with the secondary phases present in the melt
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
Margherita Piazzolla Beloch in the Italian Mathematics Education Tradition
No full textThe paper focuses on Margherita Beloch’s (1879–1976, married Piazzolla) approach to mathematical education, with particular attention to the education of prospective highschool teachers, which continued the approach by Federigo Enriques, as presented in his Questioni riguardanti le matematiche elementari (final edition, 1924–1927) written in collaboration with several university colleagues and highschool teachers. The educational role of classical geometrical matters regarding constructions was vindicated by her, from a personal approach including her attention to technology and applications, in her Lezioni di Matematica Complementare (1953)
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
- …
