1,720,959 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
Dynamics of genetic diversity in insular territories : genetic structure, demographic history and local adaptation of a tree, Coffea mauritiana Lam, endemic to Reunion Island
No full textLes îles océaniques fournissent un contexte environnemental exceptionnel pour l’étude des processus évolutifs. Leur isolement géographique et la diversité de leurs habitats est à l’origine de nombreux phénomènes de spéciation et d’adaptation locale des espèces. Les patrons de diversité génétique des espèces endémiques résultent communément de l’action de différentes forces évolutives liées à l’établissement de l’espèce sur l’île, à ses capacités de dispersion et aux contraintes sélectives du milieu. Pourtant, peu de travaux proposent une étude complète de ces patrons de diversité. Dans ce travail de thèse, la structure des populations, l’histoire démographique et l’adaptation locale d’un arbre tropical (Coffea mauritiana Lam.), endémique de l’île de La Réunion, ont été investiguées afin de fournir une vision globale de la différenciation génétique chez cette espèce. Pour ce faire, des approches combinant génétique des populations, modélisation de niche écologique, analyse de l'expression des gènes et phénotypage morphologique et biochimique des feuilles ont été mises en œuvre. D’une manière générale, la diversité génétique de C. mauritiana est structurée en populations à la distribution très localisée, qui peuvent être regroupée en groupes régionaux. La distance géographique ainsi que l’hétérogénéité du régime des pluies sont les principaux facteurs associés à la divergence des populations. Une réduction des populations est associée aux changements climatiques de la dernière glaciation, suivie par une expansion récente, vraisemblablement associée à une colonisation de la côte Ouest de l’île. La reproduction allogame de l’espèce ainsi que l’expansion récente des populations ont pu contribuer au maintien d’une diversité génétique chez C. mauritiana. Une différenciation significative de la morphologie des feuilles est observée entre populations mais n’apparait pas corrélée à la variabilité climatique. Par contre, une modulation de la composition biochimique de la cire cuticulaire des feuilles, avec en particulier un changement dans la proportion d’alkanes, a été identifiée comme un facteur probablement impliqué dans l’adaptation locale de l’espèce à son environnement. Les résultats de ces travaux apportent des connaissances nouvelles sur la dynamique de la diversité génétique d’une espèce endémique à la Réunion, ainsi que sur les bases génétiques de son adaptation locale. A terme, ces connaissances vont contribuer à une optimisation des stratégies de conservation in-situ des espèces dans un contexte de changement climatique.Oceanic islands provide exceptional settings for studies of evolutionary processes. Due to their geographic isolation and their habitat diversity, they are privileged places for speciation and local adaptation in species. Several evolutionary forces linked with the establishment of the species on the island, the dispersal abilities of the species and the environmental constraints have likely shaped the patterns of genetic diversity in endemic species. However, few studies provide a global overview on the patterns of genetic diversity in insular species. In the present thesis, population structure, demographic history and local adaptation of a tropical tree (Coffea mauritiana Lam.), endemic to Reunion Island, were investigated to provide a global picture of genetic differentiation in this species. Analyses combining population genomics, ecological niche modelling, gene expression and phenotyping morphological and biochemical traits of leaves were performed. The genetic diversity of C. mauritiana was mostly structured according to population sites, with further grouping in regional groups. The geographic distance and the heterogeneity of rainfall patterns were the main factors involved in population divergences. A reduction in C. mauritiana population members was associated with the climatic changes of the last glaciation. This reduction was followed by a recent expansion, likely associated with the establishment of the species on the western coast of the island. This recent expansion coupled at the allogamous breeding system of the species could have favored genetic diversity in C. mauritiana. A significant differentiation in leaf morphological traits was highlighted among populations, but this differentiation was not correlated with climatic factors. Otherwise, variations in the biochemical composition of cuticular waxes in leaves, involving changes in alkane proportions, were most likely involved in processes of local adaptation. Results from this work improve the current knowledge of Reunion Island endemic species and further the understanding on the genetic basis of local adaptation in these species. This information will contribute to the improvement of in situ conservation of species in a climatic change context
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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