1,720,961 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
Harvest Time and Agronomic Performance of Maize Hybrids With Different Growth Cycles
No full textThe delay of maize harvesting may damage grain yield. The magnitude of these losses can be influenced by the hybrid agronomic characteristics. This work was carried out aiming to evaluate the effects of harvest time on the agronomic performance of maize hybrids with different growth cycles. The experiment was set in Lages, SC, during the 2012/13 growing season. A randomized block design with split plots was used. Six single-cross hybrids were tested on the main plots: PP32R22H and P1630H (super early); P2530 (very early); X40B143H, P30F53YH and PP30R50YH (early). Five harvest times were assessed in the split plots: 0 (physiological maturity), 10, 20, 30 and 40 days after physiological maturity. The plant density of 80,000 pl ha-1and row spacing of 0.7 m were used. Sowing was held on December 5, 2012. Delaying harvest time by 40 days decreased 8.7% grain yield in comparison to harvest performed at the crop physiological maturity. The percentage of broken and lodged stems was higher when maize was harvested 30 to 40 days after physiological maturity. The incidence of stem diseases increased proportionally to the delay in harvest time. The occurrence of rotten grains was not affected by harvest time. The super early hybrids P32R22H and P1630H presented higher percentage of stem diseases, greater occurrence of rotten grains and worst ear husk coverage. Grain average moisture at harvest was higher than 25.0%, even when this operation was performed 40 days after physiological maturity. The delay in 14 harvest time damages maize agronomic performance, regardless of maize growth cycleO atraso na colheita do milho poder ocasionar perdas quantitativas e qualitativas aos grãos. A magnitude dessas perdas pode ser influenciada pelas características agronômicas do híbrido utilizado. Este trabalho objetivou avaliar os efeitos da época de colheita sobre o desempenho agronômico de híbridos de milho com ciclos distintos. O experimento foi implantado em Lages, SC, na safra 2012/13. O delineamento experimental utilizado foi de blocos casualizados dispostos em parcelas subdivididas. Na parcela principal foram testados seis híbridos simples: PP32R22H e P1630H (hiper-precoces); P2530 (super-precoce); X40B143H, P30F53YH e PP30R50YH (precoces). Nas subparcelas foram testadas cinco épocas de colheita: 0 (maturação fisiológica), 10, 20, 30 e 40 dias após a época 0. A densidade utilizada foi de 80.000 plantas ha-1 e o espaçamento entre fileiras de 0,7m. A semeadura foi realizada no dia 5 de dezembro de 2012. O atraso de 40 dias na colheita reduziu 8,7% a produtividade média de grãos dos seis híbridos, em comparação a colheita feita na maturação fisiológica. A percentagem de plantas acamadas e quebradas foi maior quando a colheita ocorreu de 30 a 40 dias após a maturação fisiológica. A incidência de doenças na base de colmo aumentou proporcionalmente ao retardamento da colheita. A incidência de grãos ardidos não diferiu entre as épocas de colheita. Os híbridos hiper-precoces PP32R22H e P1630H apresentaram maior incidência de podridões de base de colmo, pior empalhamento das espigas e maior percentagem de grãos 12 ardidos do que os demais híbridos. A umidade média dos grãos na colheita foi maior do que 25%, mesmo quando esta operação foi realizada 40 dias após a maturação fisiológica. O atraso na colheita prejudica o desempenho agronômico do milho, independentemente do ciclo do híbrido utilizadoCoordenação de Aperfeiçoamento de Pessoal de Nível Superio
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
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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