1,721,339 research outputs found
Carta de Domingo Manfredi a Antonio Burgos
No full textCarta de Domingo Manfredi a Antonio Burgos enviada desde la delegación de RTVE de Lisboa con fecha del 16 de diciembre de 1969
Vaticanus latinus 5314
No full textThe Vatican Library’s holdings today include approximately 180,000 manuscripts (of which 100,000 are made up of archival materials), nearly 9,000 incunabula, 150,000 prints, drawings, maps, and engravings, over 150,000 photographs, 300,000 coins and medals, and 1.6 million modern printed books. The manuscript collection is arguably the most important in the world, including such treasures as the Codex Vaticanus of the Bible, the Vatican Vergil, the Dante Urbinate, and other manuscripts which are the sources used to produce modern editions of thousands of other texts
I codici greci di Niccolò V: edizione dell’inventario del 1455 e identificazione dei manoscritti. Con approfondimenti sulle vicende iniziali del fondo Vaticano greco della Biblioteca Apostolica Vaticana
No full textIl volume offre la nuova edizione, criticamente aggiornata, del più antico inventario dei codici greci della Biblioteca Vaticana, che fu stilato nel 1455, all’indomani della morte di papa Niccolò V (1447-1455), iniziatore della raccolta greca della Biblioteca pontificia. L’edizione, preceduta da un lungo studio introduttivo che, oltre a tracciare la "storia" della raccolta greca di Niccolò V, fornisce gli strumenti necessari per la lettura dell'edizione stessa, è accompagnata dall’identificazione di una grandissima parte degli oltre 400 manoscritti registrati nell’inventario, quasi tutti ancora conservati nel fondo Vaticano greco. Di ogni manoscritto si fornisce una sintetica scheda informativa ove sono descritti e analizzati gli aspetti contenutistici, storici e materiali per poter individuare il codice catalogato nella singola voce; inoltre, per ogni voce, prima della scheda descrittiva, si offre una sinossi delle voci parallele negli altri inventari antichi della Biblioteca. Chiude il volume una ricca serie di indici
Vaccine demand driven by vaccine side effects: Dynamic implications for SIR diseases
No full textFor infections for which the perceived risk of serious disease is steadily low, the perceived risk of
suffering some vaccine side effects might become the driving force of the vaccine demand. We investigate
the dynamics of SIR infections in homogeneously mixing populations where the vaccine uptake is a
decreasing function of the current (or past) incidence, or prevalence, of vaccine side effects. We define
an appropriate model where vaccine side-effects are modelled as functions of the age since vaccination.
It happens that the vaccine uptake follows its own dynamics independent of epidemiological
variables. We show the conditions under which the vaccine uptake lands on a globally stable
equilibrium, or steadily oscillates, and the implications of such behaviour for the dynamics of
epidemiological variables. We finally report some unexpected scenarios caused by trends in vaccine
side effect
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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