1,723,113 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

    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

    Vortraege der 8. OeGEW/DGMK-Gemeinschaftstagung 'Mineraloel und Umwelt' Autorenmanuskripte

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    Auf der Tagung wurden Vortraege zu folgenden Themen gehalten: Erdgas- und Erdoelexploration und die Umwelt; Bohrtechnik und Umwelt; Foerderung von Erdgas und Erdoel und Umwelt; Verarbeitung und Logistik von Mineraloelen und die Umwelt; Petrochemie und Umwelt; Entwicklung und Anwendung fossiler Energietraeger unter Beruecksichtigung der Umweltrelevanz. (HS)Papers were read on the following subjects: Environmental aspects of material gas and petroleum exploration; environmental aspects of natural gas and petroleum production; environmental aspects of drilling; environmental aspects of petroleum processing and logistics; development and applications of fossil fuels in consideration of their environmental relevance. (HS)SIGLEAvailable from TIB Hannover: RO 8419(9205) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

    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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    Nao informado

    Hidrography and currents in the Canary Region. Cruise Canarias 9205

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    Forty-jour CTD stations were conducted out during the cruise Canarias 9205 of the R. V. Francisco de Paula Navarro. The present publication is based on the study of the geostrofic circulation and data on temperature, salinity and density obtained from these stations, from the sea surface to a depth of 500 m. In the western area of the region, where the stations are closer together, the geostrophic circulation shows a cyclonic eddy in the Tenerife-Gomera channel and another antyclonic to the South of these islands. The temperature and salinity distributions also show both eddies. In the middle of the cylonic eddy, the upwelled water comes from a depht of about 75 m. On the another hand, the temperature and salinity distributions show, between Gran Canaria and Fuerteventura islands, the end of a filament of upwelled water on the nearby African coast, that had a thick of about 50 m off Punta Jandía.En la región canaria se realizaron 44 estaciones de CTD durante la expedición Canarias 9205, con el B. O. Francisco de Paula Navarro. El presente trabajo esta basado en los datos de temperatura y salinidad, desde la superficie hasta 500 metros de profundidad, obtenidos en las referidas estaciones, así como en el estudio de las corrientes geostróficas. En la parte occidental de la región, la alta densidad de estaciones ha permitido que la circulación geostrófica ponga de manifiesto un remolino ciclónico en el canal Tenerife-Gomera y otro anticiclónico inmediatamente al sur de ambas islas. Dichos remolinos se detectan en las distribuciones de temperatura y salinidad. En el remolino ciclónico, el agua aflorada en su parte central procede de 75 metros de profundidad aproximadamente. Las distribuciones de temperatura y salinidad muestran, también, entre Gran Canaria y Fuerteventura, el extremo de un filamento de agua aflorada en la cercana costa africana que, frente a punta Jandía, tenía un espesor de unos 50 metros.Instituto Español de Oceanografí

    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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