1,721,014 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
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
Gypsum as a recorder of fluid chemistry and temperature at Kawah Ijen volcano, East Java, Indonesia
No full textKawah Ijen volcano in East Java, Indonesia is an active stratovolcano capped by the world's largest hyper-acidic lake. The lake composition is the combined product of rainwater, rock dissolution from the country rock, and magmatic gas input. The volcano has generated hazards including lava flows, lahars and acidified tephra falls in the past. Kawah Ijen also generates extreme environmental pollution as a result of leakage of extremely acidic-saline brines affecting vast areas of crops and water resources. Recent events are characterized by phreatic activity, with one phreatomagmatic eruption that threw out the entire lake in 1817. Given the potential hazards that Kawah Ijen can generate and combined with a rising population density around the volcano, the risk to human lives has increased considerably. Monitoring at Kawah Ijen is critical but requires a detailed record of past volcanic activity. Lake chemistry is an effective tool to monitor volcanic lakes, but there is currently a severely limited record of lake chemistry at Kawah Ijen. The mineral gypsum can be used to reconstruct lake chemistry history because gypsum is a direct proxy of its fluid’s composition as it precipitates in equilibrium, and is abundant at Kawah Ijen, forming a plateau and stalactites that preserve past conditions in growth zoning. This research investigates the potential for gypsum as a mineralogical tool to reconstruct a historical record of lake chemistry. Trace element composition, noble gas content and uranium-series dating of a cross-sectional transect across a growth-zoned gypsum stalactite yields a 50-year, high-resolution record of Kawah Ijen lake chemistry. Input from rock dissolution shows seasonal variations, as well as rockslides and falls. Volatile metals track input from the shallow and deep magma reservoirs. The transition metal records a combined input from rock dissolution and magmatic gases. Analysis of the 1817 gypsum records substantially increased input from the deep-seated mafic magma, indicating mafic magmatic recharge as having driven the catastrophic 1817 eruption. Moreover, the oxygen isotopic composition of gypsum preserves isotopic disequilibrium between the sulfate and water in the lake fluids. Gypsum-reconstructed temperatures show a much stronger magmatic gas input in 1817, in agreement with trace element results. In conclusion, gypsum can be used to reconstruct lake water compositions and thermal conditions of crater lakes and build the historical record that allows monitoring to be set up. In the case of Kawah Ijen, it suggests that a catastrophic eruption, similar to that of 1817, should be accompanied by a strong signal in the volatile metals (high Cu/Rb and low Tl/Cu) and increase in lake temperature.Le volcan Kawah Ijen dans l'est de Java (Indonésie) est un stratovolcan actif surmonté par le plus grand lac hyperacide du monde. La composition du lac est un mélange d’eaux de pluie, des roches encaissantes dissoutes, et d’un apport en gaz magmatiques. Par le passé, le volcan a déjà généré des coulées de lave, de lahars, et de chutes de tephra acides. Kawah Ijen peut également générer la pollution de l’environnement extrême par suite de la fuite des saumures acides et salines qui affectent les ressources en eau et agricole. Les récentes activités du volcan ont été caractérisées par une activité phréatique, avec une éruption phréatomagmatique qui a expulsé le lac entier en 1817. Le danger potentiel représenté par Kawah Ijen, combiné avec une densité de population qui ne cesse de croître entraîne une augmentation du risque pour les vies humaines. Kawah Ijen est donc nécessite d'être sous surveillance constante, mais cette surveillance demande une connaissance accrue de l’historique du volcan. La chimie du lac est un outil efficace pour surveiller les lacs volcaniques, mais les rapports sur la chimie du lac de Kawah Ijen sont malheureusement extrêmement limités. Un outil peut cependant être utilisé pour reconstruire l’histoire de la chimie du lac: le gypse. En effet, ce minéral est un estimateur direct de la composition du fluide lors de la précipitation puisquil est alors en équilibre avec le fluide. Le gypse est aussi relativement abondant au bord du volcan, format un plateau et des stalactites qui préservent donc les conditions des zones de croissances. Ce projet ici propose de tester le potentiel du gypse comme outil minéralogique dans la reconstruction de l’histoire de la chimie du lac. L’utilisation des éléments traces, des gaz rares, et des séries d’uranium pour dater une coupe transversale prise dans une stalactite de gypse correspondant à une zone de croissance a révélé la chimie du lac de Kawah Ijen, avec une résolution sans précédent pour une période de 50 ans. L’apport de la dissolution des roches indique des variations saisonnières, ainsi que des glissements de terrain et des chutes de roches. Les métaux volatiles retracent l’apport jusqu’aux réservoirs mag- matiques. Les métaux de transition enregistrent un apport provenant de la dissolution des roches et des gaz magmatiques combinés. L’analyse du gypse datant de 1817 montre une augmentation subsentielle de l’apport provenant d’un magma mafique profond, indiquant que la recharge magmatique mafique a été la cause de l’éruption de 1817. De plus, la composition isotopique du gypse en oxygène préserve le déséquilibre isotopique entre le sulfate et l’eau présents dans les fluides du lac. Les températures qui ont pu être reconstruites à l’aide du gypse montrent un apport en gaz magmatiques extrêmement important pour 1817, ce qui corrobore les données apportées par les éléments traces. En conclusion, le gypse peut être utilisé pour reconstruire les compositions des eaux lacustres et les conditions thermales des lacs de cratère. Ceci permet donc une reconstruction de l’historique du volcan, élément indispensable pour effectuer la surveillance actuelle. Dans le cas de Kawah Ijen, les données suggèrent qu’une catastrophe similaire a celle de 1817 devrait être accompagnée d’un fort signal dans les métaux volatiles (forts taux de Cu/Rb, faibles taux de Tl/Cu), ainsi qu’une augmentation de la température du lac
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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