1,721,040 research outputs found
Extracting Information in a Transshipment Container Terminal Data Set: an Interaction between Graphical Tools and Statistical Models
No full textIl papiro conciliare P.Vindob. G 3: un 'originale' sulla via da Costantinopoli a Ravenna (e a Vienna).
No full textNel contributo sono ricostruite passo per passo le vicende di un documento eccezionale sotto molti aspetti, vale a dire il Papyrus Vindobonensis Graecus 3, recante le sottoscrizioni relative alla definizione di fede del VI concilio ecumenico (Costantinopolitano III, a. 680/681). Grazie alla tecnologia digitale è stato possibile postulare, con buon margine di sicurezza, che il frammento oggi superstite rappresenta una copia imitativa di altissimo livello, allestita all'interno del team dei notai verbalizzanti ancora durante i lavori del concilio, tra 11 e 16 settembre 681. Infatti, allo scopo di rendere uniformi tutti i rotoli originali degli atti, un'unica mano di cancelleria copiò personalmente (in una riproduzione quasi 'fotografica') alla fine del rotolo ufficiale (destinato all'imperatore bizantino o al patriarca di Costantinopoli) le sottoscrizioni dei prelati che parteciparono alla XVII sessione del concilio, interrottasi bruscamente per irregolarità protocollari (ovvero per l'assenza studiata dell'imperatore Costantino IV). Oltre al rapporto con la versione latina degli atti, trasmessa soprattutto da testimoni di area alpina e transalpina del secolo VIII, vengono analizzate le sorti del lacerto papiraceo giunto sino a noi: dalla fuoriuscita dagli atti del rotolo della sessione già nel 686/687 (ad opera dell'imperatore Giustiniano II) al recupero del frammento da parte di un notaio ravennate (Iohannicius?) di stanza a Costantinopoli alla fine del VII secolo; dalla lunga permanenza del papiro nel quieto riparo dell'archivio arcivescovile di Ravenna al suo ingresso, verso la fine del XV secolo, nella collezione dell'illustre casato veneziano dei Bembo; infine, dall'acquisto (poco dopo la metà del XVI secolo) da parte dell'umanista ungherese Johannes Sambucus fino all'entrata definitiva del cimelio nella biblioteca palatina di Vienna. Chiude il lavoro una trascrizione con commento del testo delle sottoscrizioni conservato in P.Vindob. G 3
Caratterizzazione della risposta all'impatto di laminati cross-ply con cuciture di rinforzo
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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
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
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