1,721,135 research outputs found

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

    Analysis and restoration of an aged marine outfall system: the Trieste sewer case

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    The Trieste outfall sewer system is active since 1992, discharging treated sewage at a distance of 7.5 km offshore and average sea depth of 20 m. The submerged diffuser has a Y shape, being constituted of a 500 m long inlet pipe, 2 m in diameter, followed by two pipelines, 6 and 6.5 km in length, each leading to the diffusers, 500 and 1000 m long, respectively. This system is efficient, provided full nozzle venting. This condition, however, is difficult to assess, both for difficulties in continuous monitoring and for possible nozzle occlusions. Moreover, risers are subject to damaging, leading to larger treated sewage fluxes and a lesser dilution efficiency. The aging of the pipe system is assessed in comparison with the “as new” and design conditions. Some site measurements of dilution characteristics give some hints on actual system efficiency

    Emigrazione italiana oggi. Dati e problemi emersi da un'inchiesta

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    Il lavoro di ricerca ha messo in evidenza come la mancanza di dati sull'emigrazione italiana impedisce di avere un quadro preciso della consistenza numerica della comunità italiana all'estero e questo rende ancora più difficile il compito della chiesa nel suo progetto assistenziale. La presente ricerca, rispondendo ad alcune argomentazioni poste come obiettivi principali e motivazioni della stessa, ha contribuito nel costruire ed elaborare importanti risultati sia sul piano quantitativo, mediante la proposta di nuovi modelli di analisi e di ulteriori fonti quantitative da esplorare, e sia sul piano qualitativo cercando una definizione più attinente al fenomeno attuale della emigrazione italiana nel mondo.The research has highlighted how the lack of data on Italian emigration from having a clear picture of the abundance of the Italian communities abroad and this makes it even more difficult the task of the church in its present research project assistenziale.La In reply to some of the arguments posed as the main goals and motivations of the same, he helped to build and develop important results both in terms of quantity, through the proposal of new models of analysis and more quantitative sources to explore, both qualitatively and looking for a definition more relevant to the current phenomenon of Italian emigration in the world

    Variations on the Author

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    “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

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    We 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

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    We 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

    Author Index

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    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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