1,721,183 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
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
Evolution of the physical and chemical properties of the african dust
No full textCette thèse est consacrée à l’étude de l’évolution des propriétés physico-chimiques d’un panache d’aérosols désertiques nord africains au cours de son transport vers l’Europe du Nord. Cet épisode de mai 2008 est considéré comme l’évènement de transport d’aérosols désertiques le plus important de ces cinq dernières années observé sur le continent européen. La propagation de ce panache a été étudiée en combinant des moyens d’observation (sols, aéroportées, spatiales) au modèle de recherche Méso-NH. L’analyse des processus de dépôt a révélée que les quantités éliminées de l’atmosphère par dépôt sec et humide représentent respectivement 7 et 40 % de la quantité émise. Les valeurs d’épaisseur optique mesurées à 440 nm sur l’Europe variaient de 0.1 à 0.8, avec un maximum proche de 1 au-dessus des Pays-Bas. Au-dessus de cette région, les aérosols désertiques sont principalement situés entre 2.5 et 5.2 km d’altitude, mais aussi proche de la surface. La concentration en aérosols désertiques au sein de ces deux couches a été estimée respectivement à 350 et 450 ��g.m-3. Néanmoins, les mesures réalisées ne présentaient pas les caractéristiques optiques habituellement associées à la présence d’aérosols désertiques. En particulier, la présence d’une importante dépendance spectrale a été observée le 30 mai à proximité de Cabauw. L’exploitation des simulations ont permis de montrer que cela résultait d’une efficacité de lessivage plus importante du mode grossier. La présence d’aérosols désertiques coïncide avec une augmentation de la concentration des noyaux de condensation (CCN). Nos résultats suggèrent que le mélange entre le panache et les aérosols de pollution d’origine anthropique a conduit à une augmentation des capacités hygroscopiques des aérosols désertiques. Ce travail de recherche confirme ainsi que les conditions physico-chimiques de l'atmosphère régissent le cycle de vie des aérosols.This thesis focuses on the evolution of the dust physical and chemical properties through a case of long-range transport of Saharan dust over Northern Europe. This episode of May 2008 is considered as the strongest event of Saharan dust transport to Europe observed since these last five years. This spread of dust is investigated by combining observations (ground-based, airborne, satellite) and the meso-scale model Méso-NH.The analysis of the removal processes reveals that the amounts lost by dry and wet deposition represent 7 and 40 % the total dust emitted respectively. The observed aerosol optical thickness ranged from 0.1 to 0.8 at the wavelength of 440 nm, with a maximum value close to 1 is found over the Netherlands. Over that site, the dust layer was mainly located between 2.5 and 5.2 km, moreover dust was also present at 0.5 km. The concentration of dust inside these two layers is estimated to 350 and 450 ��g.m-3 respectively. Nevertheless, the usual optical characteristics of Saharan dust were not observed. In particular, the scattering coefficient measurements revealed a strong spectral dependence observed during the 30th May, close to Cabauw. The analysis of the numerical experiements revealed that this was due to high precipitation scavenging efficiency for the coarse mode. The presence of Saharan dust coincides with an increase of the cloud condensation nuclei (CCN) concentration. Our results suggest that the mixing processes between the Saharan dust and anthropogenic particles have led to an increase of the Saharan dust hygroscopic properties. Thus, this thesis confirms that physical and chemical conditions of the atmosphere govern the life cycle of dust
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