1,721,022 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Implication of interleukine-18 in the anti-tumoral cytotoxicite of polynucleaires eosinophiles
No full textLes polynucléaires éosinophiles sont des leucocytes multifonctionnels qui participent aux réponses innées et adaptatives par l’expression et la sécrétion de nombreux récepteurs et médiateurs. De plus en plus d’études, épidémiologiques, in vivo ou in vitro, suggèrent la participation des éosinophiles dans l’immunité anti-tumorale, et notamment dans le contexte du cancer du côlon. En effet, la présence d’une TATE (Tumor-Associated Tissue Eosinophilia) chez les sujets atteints de cancers est, en général, associée à un pronostic favorable. De même, notre laboratoire ainsi que d’autres équipes ont montré que les éosinophiles humains expriment des récepteurs et médiateurs, communs aux lymphocytes et connus pour être impliqués dans l’immunité anti-tumorale, tels que le 2B4, le complexe CD3/TCRγδ ou le granzyme A. La stimulation des éosinophiles in vitro, via ces récepteurs, conduit à la mort de cellules cancéreuses. Cet effet nécessitant un contact entre les cellules impliquant LFA-1 sur les éosinophiles. L’interleukine-18 est un membre de la famille des cytokines de l’IL-1. Elle fut initialement identifiée comme un facteur induisant la production d’IFNγ, basé sur sa capacité à promouvoir une réponse de type Th1 chez les lymphocytes et les cellules NK. Aujourd’hui, l’IL-18 est considérée comme une cytokine immuno-régulatrice capable de stimuler de nombreux types cellulaires. Son implication dans la réponse anti-tumorale est de plus en plus reconnue, notamment en favorisant la cytotoxicité de cellules NK. Nous avons donc étudié si cette cytokine pouvait également être impliquée dans la cytotoxicité des éosinophiles. Dans ce travail, nous avons démontré que les éosinophiles humains exercent une cytotoxicité vis-à-vis de plusieurs lignées cellulaires tumorales avec cependant une certaine hétérogénéité. L’IL-18 est non seulement capable d’activer in vitro les éosinophiles mais elle participe également à leur activité anti-tumorale vis-à-vis d’une lignée de carcinome du côlon, en favorisant notamment le contact entre les deux types cellulaires. Nos résultats proposent l’IL-18 comme un nouveau médiateur dans l'activité anti-tumorale des éosinophiles et apportent également un nouvel argument en faveur du rôle bénéfique que les éosinophiles peuvent exercer, notamment dans le contexte du cancer du colon.Eosinophils are multifunctional leukocytes which participate in innate and adaptive immune response though the expression and secretion of various receptors and mediators. Numerous epidemiological, as well as in vivo and in vitro studies suggest the involvement of eosinophils in antitumor immunity, notably in context of colon cancer. In fact, a TATE (Tumor-associated tissue eosinophilia) is associated with a good prognostic value. Recently, we and others have shown that human eosinophils expressed receptors and mediators shared with lymphocytes and involved in anti-tumor defense, such as 2B4, TCRγδ/CD3 complex, and granzyme A (8–10). Eosinophil stimulation through these receptors induced tumor cell death in vitro. This activity required cell-cell contact involving LFA-1 on eosinophils. IL-18 is a member of the IL-1 family of cytokines. IL-18 was first identified as an IFNγ-inducing factor, based on its ability to enhance the Th1-type immune response by stimulating NK cells and T cells. IL-18 is actually considered as an immunoregulatory cytokine able to stimulate various cell types. IL-18 participates in antitumor responses notably by enhancing NK cell-mediated cytotoxicity. In this context, we have studied whether this cytokine may be also involved in eosinophil-mediated cytotoxicity. In this study, we show that human eosinophils exert cytotoxicity against tumor cells in vitro, with heterogeneity according to the type of target cells. IL-18 increases eosinophil-mediated cytotoxicity towards a carcinoma cell line in vitro by promoting cell-cell contact between these two cell types. Our results propose IL-18 as a new mediator in antitumor properties of human eosinophils and support further evidence that eosinophils could exert a beneficial role, notably in the context of colon cancer
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe 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-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn 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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