1,720,955 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
Arrière effet de la fertilisation et des résidus de récolte du niébé (Vigna unguiculata) sur la production du riz de bas-fond dans un systeme de culture riz-maraîchage
Get PDFLa culture des légumineuses en rotation avec le riz, combinée à l'emploi de leurs résidus de culture peut permettre d'améliorer la fertilité du sol, de réduire les doses d'engrais minéraux utilisées en riziculture, et enfin d'accroître le rendement du riz. Une expérimentation a été conduite en station à Ouêdèmè (6° 48 N et 1° 47 E) au Sud-Ouest du Bénin, en vue d'évaluer l'arrière effet de la fertilisation et des résidus de récolte du niébé (vigna unguiculata) sur la production du riz de bas-fond, dans un système de rotation niébé-riz-tomate. Le matériel végétal était composé de la variété de niébé IT82E25, de la variété de riz Nerica L14 et de la variété de tomate Mongal F1. Le dispositif expérimental utilisé était un bloc complètement randomisé à quatre répétitions. Après la culture du niébé ayant reçu une fertilisation azotée d'appoint (20 kg.ha-1 N) et deux niveaux de fertilisation au phosphore (0 ou 30 kg.ha-1 P2O5), le riz a été installé avec différents traitements : incorporation ou non incorporation des résidus de culture de niébé (tiges, feuilles, racines) et trois niveaux de fertilisation azoté (0, 30 ou 60 kg.ha-1 N). Après la récolte du riz, la culture de la tomate a succédé au riz et a reçu une fertilisation NPK de 50 kg N, 20 kg P2O5 et 80 kg.ha-1 K2O. Les paramètres de croissance (hauteur, recouvrement du sol, nombre de talles, biomasse) et les composantes du rendement ont été mesurés pour chaque culture. Les données ont été analysées avec le logiciel statistique Genstat Discovery Edition 4, en considérant le seuil de signification 5%. Une analyse de variance "one-way" a été effectuée sur les données de niébé. Pour les données relatives au riz et à la tomate, nous avons réalisé une analyse de variance split plot en vue d'évaluer les effets ou arrière effets de chacun des facteurs et de leurs interactions. Les résultats ont révélé une augmentation significative de la hauteur (de 7,9 à 9 cm soit de 14%) et du taux de recouvrement (de 15,5 à 19,8% soit de 27%) du niébé en phase végétative et du rendement en grains du niébé de 631 à 835 kg.ha-1 (soit de 32%) sous l'effet du phosphore. Pour le riz, nous avons obtenu un accroissement significatif du rendement en grains de 3603 à 3922 kg.ha-1 (soit de 9%) et de la production de paille sèche de 4287 à 4695 kg.ha-1 (soit de 9%) par l'incorporation des résidus de niébé au sol. Pour la tomate, nous avons observé une augmentation significative du rendement total et du rendement des fruits sains respectivement de 531 à 598 kg.ha-1 (soit de 12,6%) et de 525 à 589 kg.ha-1 (soit de 12,2%) sous l'arrière effet de la fertilisation en phosphore (30 kg.ha-1 P2O5), une baisse significative du rendement total et du rendement des fruits sains de tomate respectivement de 592 à 510 kg.ha-1 (soit de 14%) et de 583 à 503 kg.ha-1 (soit de 14%) sous l'arrière effet de l'application de 60 kg.ha-1 N. Les caractéristiques chimiques du sol ont évolué sous l'effet de la rotation niébé-riz. Ainsi avons-nous observé une augmentation significative de 35 et 58% de la teneur en phosphore du sol, respectivement sous les interactions phosphore*azote et phosphore*résidus. La teneur en azote du sol a connu une baisse significative de 24 à 37% sous tous les traitements. En somme, la rotation niébé-riz peut améliorer le rendement et les paramètres de croissance du riz avec un apport limité en azote et en phosphore, et peut aussi contribuer à l'accroissement de la teneur en phosphore du sol
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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