1,721,032 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

    Tectonometamorphic evolution of the Briançonnais zoned and its contact with the Liguro-Piemont : Implications for the understanding of the continental subduction dynamics

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    Les exemples actuels de zones de subduction continentale se comptent sur les doigts de la main, et la compréhension de ce processus repose très largement sur ses témoins fossiles. Ceux affleurant dans la chaîne des Alpes occidentales sont parmi les mieux préservés au monde. En étudiant le complexe de subduction alpin et le contact tectonique séparant les témoins fossiles d'affinités continentales et océaniques - le contact entre les domaines Briançonnais et Liguro-Piémontais - ce travail s'est efforcé de préciser le cadre tectono-métamorphique de la subduction continentale, ainsi que la paléogéographie de l'ancienne marge continentale briançonnaise. En révélant l'existence de conditions métamorphiques similaires de part et d'autre, cette étude montre que ce contact constitue une interface de plaque fossile. La préservation de cette interface et les conditions d'enfouissement de ces roches de part et d'autre suggèrent un caractère localisé des mécanismes d'accommodation de la déformation et la préservation d'une structure thermique froide. La confrontation du cas alpin à d'autres exemples de subduction continentale montre en outre de fortes similitudes avec celles décrites dans les zones de subduction océaniques. L'ensemble de ces observations invite à ranger la dynamique de subduction continentale du côté du régime général de subduction plutôt que la considérer comme une phase transitionnelle entre la subduction océanique et la collision. Les résultats géochronologiques obtenus au cours de cette étude soulignent la complexité d'interprétation des systèmes Ar-Ar et Rb-Sr. Ils indiquent néanmoins que le système Ar-Ar semble enregistrer le dernier épisode de recristallisation métamorphique, vers 37-41 Ma, alors que le système Rb-Sr apparaît sensible à une rééquilibration ultérieure, vers 34-35 Ma, possiblement à la faveur de circulations de fluides. Enfin le Briançonnais présente des traces d'une histoire pré-alpine. Les datations réalisées indiquent la préservation d'un épisode métamorphique daté à 340-360 Ma et dont la nature est probablement barrovienne. Les données pétrologiques suggèrent également la préservation d'indices d'un épisode éclogitique dont l'âge précis n'est pas contraint. La comparaison de nos résultats avec ceux disponibles dans la littérature sur les différents massifs varisques européens suggère une affinité plutôt gondwanienne pour le Briançonnais.Current examples of continental subduction zones are scarce, such that rocks metamorphosed and returned from these settings represent the best candidates for understanding processes occurring during continental subduction. Rocks exhumed in the Western Alps range among the best examples in the world in terms of preservation. Focusing on the study of the Alpine subduction complex and the tectonic contact separating the units of continental and oceanic affinities - the Briançonnais Liguro-Piémontais contact - this work reappraises the metamorphic framework of continental subduction as well as the paleogeography of the former Briançonnais continental margin. In particular, the finding of similar metamorphic conditions on both sides of the Briançonnais Liguro-Piémontais contact, suggests that it represents a frozen-in, fossilized plate interface. The preservation of this interface and the pressure-temperature conditions reconstructed on both sides of the interface suggest that deformation was strongly localized and shed light on the thermal structure during continental subduction. Comparing the Alpine case study with available worldwide examples shows strong similarities with what was reported for oceanic subduction dynamics. The observations and results shown here hint to an abrupt, rather than gradational, transition from continental subduction to collision. Geochronological results obtained during this study highlight the complexity of interpreting ages acquired in the Ar-Ar and Rb-Sr systems. The Ar-Ar system appears better suited for recording the last metamorphic recrystallization event, while the Rb-Sr system appears sensitive to even later reequilibration, possibly linked to fluid circulation. Finally, the Briançonnais shows traces of a pre-Alpine history. Dating indicates the preservation of a metamorphic episode dated circa 340-360 Ma, probably of Barrovian type. Petrological data also evidence an eclogitic event, the precise timing of which remains unconstrained. The comparison of our results with those available in the literature on the various European Variscan massifs rather support a Gondwanian affinity for the Briançonnais units

    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

    Author Under Sail The Imagination of Jack London, 1893-1902

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    In Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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