1,720,995 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Full text linkWe 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
Implication of type VI secretion system in motility and bacterial communication, and specific properties of the environmental strain P. fluorescens MFE01
No full textLes travaux menés durant cette thèse portent sur l’étude de propriétés particulières de la souche P. fluorescens MFE01. La première partie porte sur la relation entre le système de sécrétion de type 6 (SST6) et la mobilité. En effet, cette souche environnementale avirulente possède un SST6 très actif qui lui confère un avantage lors de compétition avec d’autres microorganismes, notamment dans un pathosystème végétal. La présence de plusieurs gènes hcp codant pour des protéines de l’aiguille du SST6, situés en dehors du cluster principal, semble permettre la formation de différentes aiguilles du SST6, ayant des fonctions spécifiques. Parmi les protéines Hcp, la protéine Hcp1 est impliquée dans l’inhibition de la mobilité flagellaire des bactéries cibles, et, de façon remarquable, la délétion du gène codant cette protéine, le gène hcp1, inhibe la mobilité de type « swim » de la souche MFE01. Ainsi, les travaux menés ont permis de formuler des hypothèses sur le rôle du SST6 formé de la protéine Hcp1 et la formation de flagelle. Un faisceau d’indices semble indiquer que le SST6 formé d’Hcp1 serait impliqué dans transport d’un ou plusieurs effecteurs agissant sur la formation des flagelles. Une deuxième partie de ces travaux de thèse se focalise sur d’autres propriétés spécifiques de la souche MFE01. D’une part, la souche MFE01 ne semble pas produire de signaux de communication classiques de Quorum Sensing tout en étant capable d’adopter des comportements sociaux. Nous avons donc entrepris de vérifier cette absence de signaux de communication classiques et proposé l’implication du SST6 dans la communication. D’autre part, nous avons collaboré à la mise en évidence d’une action directe de la souche de MFE01 sur le développement d’une plante modèle indépendamment du SST6 et tenté d’en cerner les mécanismes. Enfin, MFE01 produit des molécules volatiles organiques (VOCs) à action anti-Legionella. Ces travaux contribuent à l’étude de la production de ces VOCs par MFE01 et leurs effets sur les bactéries pathogènes du genre Legionella.During this doctoral work, we focused on the specific properties of the environmental strain P. fluorescens MFE01 which is avirulent against all tested eukaryotic cells despite the presence of an extremely active T6SS. This T6SS confers to MFE01 a competitive advantage against other microorganisms. The first part of this work studies interconnections between type six secretion system (T6SS) and motility. In MFE01 genome, all needle protein-encoding hcp genes are detected outside the “core component” cluster and interestingly, MFE01 seems to be able to produce different T6SS needle with specific functions depending on the incorporated Hcp protein. The Hcp1 protein is implicated in flagellar motility inhibition of target bacteria. Remarkably, the deletion of hcp1 gene inhibits MFE01 “swimming” ability. Our work gave some evidences that the T6SS formed by Hcp1 may secrete a least one effector targeting flagella formation. The second part of this work focuses on other specific properties of MFE01. First, MFE01 appears unable to produce classic quorum sensing signal whereas it is able to engage social behavior. We proposed a model in which T6SS may be involved in MFE01 communication. Then, we participated to highlight and understand direct activity of MFE01 on plant development by a mechanism that is independent of T6SS. Lastly, we demonstrated that MFE01 produces volatile organic compound (VOCs), which are active against Legionella. This work shows that this VOCs production is potentially under control of a global regulator and/or is involved in an undescribed regulatory network
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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