1,720,969 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
Shaped light for the manipulation and measure of the ro-vibrationnal distribution of a bariul monofluoride supersonic beam
No full textLes 20 à 30 dernières années ont vu les possibilités expérimentales en physique se développer à un rythme extrêmement rapide, notamment dans le domaine de la matière froide. Dans les années 90, les premiers condensats de Bose-Einstein ont été obtenus avec des gaz de rubidium et sodium. Ces performances ainsi que celles liées au refroidissement optique d’atomes ont motivé le développement de nombreuses approches pour améliorer le refroidissement de molécules, qui présente des intérêts dans divers domaines de la physique et de la chimie. Jusqu'ici, bien que le refroidissement optique d'atomes soit très performant, appliquer ces techniques aux molécules semblait impossible à cause de structures internes plus complexes dans les molécules. Un des problèmes est que la vibration est soumise au principe de Franck-Condon, ce qui a pour conséquence la diffusion des particules sur différents états lors d'une relaxation depuis un niveau excité et que les transitions ro-vibronniques optiques fermées sont très rares dans les molécules. Dans la première partie de ce manuscrit, nous présenterons la molécule de BaF et ses caractéristiques qui en font un candidat de choix pour le refroidissement optique de molécule, puis nous présenterons l'expériencede jet supersonique utilisée dans ces travaux de thèse. Le développement d'un nouveau type de source optiques pour le refroidissement est ensuite discuté, avant de montrer les performances du refroidissement optique des BaF obtenues dans le jet supersonique. Enfin, le dernier chapitre de ce manuscrit sera consacré à la présentation d'une nouvelle méthode d'évaluation de température vibrationnelle dans un jet supersonique à l'aide des sources optiques développées.The last 20 to 30 years have seen a very fast development of experimental possibilities in physics, and especially in the field of cold matter. In the nineties, the first Bose-Einstein Condensates were obtained with rubidium and sodium gases. These achievements, as well as the performances in laser cooling of atomic species have motivated the design of several approaches to improve the cooling of molecules, that presents many interests in differentfields of physics and chemistry. While the optical cooling of atoms if efficient, transposing the same techniques to molecular cooling seemed hardlyfeasible because of internal structures much more complex in molecules. One of the main issues of molecular laser cooling resides in the vibration that is governed by the Franck-Condon principle, which leads to the diffusion of the particles over differents states when relaxing from an excited state and that ro-vibronic closed transitions are very scarce in molecules.In the first part of this manuscript, we will present the BaF molecule and its caracteristics which make this species a great candidate to laser cooling, then we will present the supersonic beam experiment used during this PhD. We will discuss the development of a new type of optical sources,before showing the performances obtained for the laser cooling of BaF molecules in the supersonic beam. The last chapter will be dedicated to theintroduction of a new technique to probe the vibrationnal of the beam using the light sources previously developped
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
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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