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    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

    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

    Beyond the youth smile: Investigating techniques and materials in Caroto's paintings by analytical single-point analyses and IR reflectography in full-field

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    Giovan Francesco Caroto was a famous Renaissance who played a fundamental role in Venetian painting at the turn of the 15th and 16th centuries. Despite this, just a few of his works have been studied in depth with a multidisciplinary approach between art history and scientific diagnostics. In this study, twenty paintings spanning almost forty years of his entire production in different areas of Northern Italy were analysed. The occasion for this study was the monographic exhibition dedicated to Caroto in Verona, in the halls of the Palazzo della Gran Guardia, in 2022. The research project focused on the application of non-invasive and in-situ techniques on a large number of paintings, following a consolidated protocol from imaging to spectroscopic analyses. The goal was to transition the local determination into a whole pattern analysis through a chemometric statistical evaluation. Indeed, it was possible to gain an overview of the material dimension of the artist by correlating chemical data with the year and place of production. This was achieved by overlapping Vis-IR imaging data with a high number of surface analyses (UV-Vis-NIR fibre optics reflectance spectroscopy -FORS-), and stratigraphic elemental analyses (XRF spectrometry). A multi-layer reading of the analysed works was proposed from the preparatory layer to the glaze and surface finish. Full-field IR reflectography allowed the corpus analysed to be considered in its entirety, discriminating original materials and retouchings, for the identification of the areas most representative for chemical analyses. The application of this protocol, along with the cross-discussion of the data acquired, and the comparison with historical sources enabled the identification of the artist's palette and its evolution over time. Moreover, the determination of minerals and minor elements in pigments traced Caroto's movements between Verona and Casale Monferrato, also providing information on material supply habits

    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

    Considerazioni sulla diversità etnica nella Scizia erodotea e nella regione a nord del Caucaso

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    Herodotus was the first to try to present in an organic way the ethnic situation in the region north of the Black Sea and to define what is Scythian and what is not. The picture that emerges from his story remains very complex, as evidently the real ethnic situation was. From the second half of the nineteenth century, it has been discussed for a long time whether the peoples that Herodotus presents as Scythians, despite the attempt at systematization, do not actually represent an inhomogeneous group and whether this definition is therefore too general or at least as broad as that of the ancient Persian Sakā
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