1,721,157 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
Oxidation-reduction processes in the genesis of the uranium-vanadium tabular deposits of the Cottonwood Wash mining area (Utah, U.S.A.) : evidence from petrological study and organic matter analysis
No full textThe Cottonwood Wash U-V tabular deposits are hosted by the Salt-Wash Member of the Jurassic Morrison Formation. Petrological study of ore and barren host-rocks and analysis of organic matter were conducted to test redox genetic models. Barren sandstones are mainly cemented by quartz, calcite and kaolinite. Tabular ore is cemented by U-bearing vanadiferous clays. Pitchblende and coffinite are present in some coalified logs. U and V mineralization occurred during diagenesis after interpénétration of detrital quartz grains. Two different generations of pyrite are observed. Accumulation and preservation of organic matter composed of conifers fragments were possible because of favorable paleogeographical and paleoclimatological conditions. Chemical composition of organic matter is interpreted as an oxidation event that occurred during diagenesis. This oxidation was related to the circulation of uranium-bearing, oxidizing solutions during burial. The fact that diagenetic oxidation is not strong enough to destroy organic matter supports the slow-rate oxidation identified in the genesis of secondary pyrite and suggests that the oxidizing capacity of the mineralizing fluid was lower than the reducing capacity of the hosted rocks. When these solutions encountered reduced organic-rich zones, U and V precipitated. The results indicate that Colorado Plateau tabular deposits formed from low oxygen waters compared to the solutions which formed typical roll front deposits.Les gisements urano-vanadifères de Cottonwood Wash, de type tabulaire, sont situés dans le Membre Salt-Wash de la Formation Morrison d'âge jurassique. Une étude pétrologique de la minéralisation et des roches encaissantes couplée à une étude de la matière organique liée spatialement à la minéralisation, a été entreprise afin de tester les modèles génétiques d'oxydo-réduction. Les grès stériles sont principalement cimentés par le quartz, la calcite et la kaolinite. Les grès minéralisés sont cimentés par des argiles vanadifères porteuses d'uranium. La pechblende et la coffinite sont présentes dans certains morceaux de bois. La minéralisation à uranium et vanadium s'est mise en place durant la diagenèse après l'interpénétration des grains détritiques de quartz. Deux générations de pyrite sont observées. L'accumulation et la préservation de débris de conifères fut possible grâce aux conditions paléo-géographiques et paléo-climatologiques favorables. La composition chimique des matières organiques est interprétée comme le résultat d'une oxydation pendant la diagenèse. Cette oxydation est liée à la circulation de solutions oxydantes porteuses d'uranium au cours de l'enfouissement. Le fait que cette oxydation diagénétique n'ait pas été suffisamment forte pour détruire la matière organique vient corroborer l'oxydation ménagée mise en évidence dans la formation de la pyrite secondaire et suggère que le flux oxydant du fluide minéralisateur était inférieur à la capacité réductrice de la roche. Lorsque ces solutions ont rencontré des zones réductrices riches en matière organique, l'uranium s'est déposé. Ces résultats indiquent que le potentiel oxydant des solutions, nécessaire à la formation des gisements tabulaires du Plateau du Colorado est inférieur à celui des gisements de type roll.Meunier Jean-Dominique, Landais Patrick, Monthioux Marc, Pagel Maurice. Oxidation-reduction processes in the genesis of the uranium-vanadium tabular deposits of the Cottonwood Wash mining area (Utah, U.S.A.) : evidence from petrological study and organic matter analysis. In: Bulletin de Minéralogie, volume 110, 2-3, 1987. Les mécanismes de concentration de l'uranium dans les environnements géologiques
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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