1,720,964 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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Diversité et déterminisme génétique de la recombinaison méiotique chez Saccharomyces cerevisiae
No full textModern agriculture must ensure food security in a context of climate change that will lower yields. A better understanding of the factors controlling meiotic recombination could pave the way to modifying the number and distribution of crossing-over, which would allow a more precise localization of genetic factors controlling agronomic traits, and facilitate gene pyramiding in selection programs. During my thesis, I developed a method for high-throughput measurement of recombination rates in the yeast Saccharomyces cerevisiae. This allowed me to study the diversity of recombination and interference in a collection of 24 strains representing most of the diversity of the species, as well as within a five-parent di-allele design. The results show an average number of crossovers per meiosis ranging between 24 and 61, higher than in the majority of other species. Furthermore, recombination patterns differ between strains, and ratios of local recombination rates show 9-fold differences in some regions. Strains from unstable habitats, however, do not have a higher level of recombination than those from stable environments. In addition, most strains show interference whose strength is positively correlated with the level of recombination. The study of the relationship between recombination rate and sequence similarity between homologs at different scales (from local to global) indicates that recombination is controlled by both cis elements and trans factors. Lastly, heterozygosity in hybrids has a negative effect on crossing-over, but homozygotes also have a reduced level of recombination due to inbreeding depression. This work will now be used to study the response of recombination to selection and to detect QTL of crossover number in order to identify genes controlling recombination.L’agriculture moderne doit assurer notre sécurité alimentaire dans le contexte d’un changement climatique qui entraîne une baisse des rendements. Une meilleure compréhension des facteurs contrôlant la recombinaison méiotique ouvrirait la voie à la modification du nombre et de la répartition des crossing-overs, ce qui permettrait une localisation plus précise des facteurs génétiques contrôlant les caractères d’intérêt agronomique et faciliterait le pyramidage d’allèles favorables au sein d’un même génotype élite. Pendant ma thèse, j’ai développé une méthode de mesure à haut débit de la recombinaison chez la levure Saccharomyces cerevisiae pour étudier la diversité de la recombinaison et de l’interférence au sein d’une collection de 24 souches représentatives de la diversité de l’espèce ainsi qu’au sein d’un dispositif di-allèle à cinq parents. Les résultats montrent un nombre moyen de crossing-overs par méiose compris entre 24 et 61, ce qui est plus élevé que chez la majorité des autres espèces. Plus particulièrement, les profils de recombinaison diffèrent entre souches, atteignant un écart d’un facteur 9 dans certaines régions. Les souches originaires d’habitats peu stables n’ont cependant pas un niveau de recombinaison plus élevé que les souches originaires d’environnements stables. En outre, la plupart des souches montrent de l’interférence dont la force est corrélée positivement avec le niveau de recombinaison. L’étude de la relation entre niveau de recombinaison et similarité de séquence entre homologues, à différentes échelles locales ou globales, indique que la recombinaison est contrôlée à la fois par des éléments cis et des facteurs trans. Par ailleurs, l’hétérozygotie chez les hybrides a un effet négatif sur le niveau de recombinaison, mais les homozygotes ont aussi un niveau de recombinaison réduit par un effet de dépression de consanguinité. Ce travail permettra maintenant d’étudier la réponse de la recombinaison à la sélection et de détecter les QTL de nombre de crossing-overs, afin d’identifier des gènes qui contrôlent la recombinaison
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
- …
