1,721,063 research outputs found

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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

    Produção de zangões de abelhas africanizadas apis mellifera l. No semiárido nordestino do brasil

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    The main objective of this work was to test induction methods for the production of drone cells in Africanized honey bees (Apis mellifera L.) and to evaluate the factors that interfere in the production of drones during the harvest and off-season periods in the Brazilian northeastern semi - arid region. The experiments were carried out at the Technological Center of Apiculture and Meliponiculture of Rio Grande do Norte (CETAPIS), located at the Experimental Farm belonging to the Federal Rural Semi-Arid University (UFERSA) geographically defined by coordinates 5º03'37 "South Latitude and 37º23 ' 50 "west longitude, with an average altitude of 72 meters and semi-arid climate. The two methods of induction for the production of drone cells tested in the present work were: Addition of a frame containing a complete sheet of wax with workers' alveoli on the sides of the colonies (second frame) and Addition of a frame with 20 cm x 7cm of wax with alveoli of workers on the sides of the colonies (eighth frame).In addition to the methods, it was verified the effect of colony population size on the production of new combs containing drone cells in the harvest and off season, the characterization of climatic seasonality, allowing the delimitation of two periods (Harvest and Entressafra) and demonstrating the period of natural presence of drones, the morphometry of africanized honey bees' drones in a semi-arid climate region and the comparison between the construction of drone cells on both sides of the frames. The result of the induction methods was that the addition of a frame with 20 cm x 7 cm tapes of honeycomb wax was more efficient than the addition of a frame containing a complete sheet of wax with workers' alveoli on the sides of the colonies (p <0 , 05) in the harvest period, however, both methods were inefficient in the off season. Regarding the association of colony size, it was observed that the size had no influence on both the harvest and the off season. The climatic seasonality was determinant in the production of drones, where the rainy period presented a very significant difference (p <0.0001), with its peaks in the months of June and July. The morphometric evaluations of Africanized honey bee drones (Apis mellifera L.) presented mean results of 6.37 mm (± 0.97) for abdomen length, 13.06 mm (± 1.8) for total length and mean weight of 128 mg. It was possible to verify that both sides of the frame are practically mirrors, where they have almost the same number of cells, not presenting statistical difference between themO presente trabalho teve como principal objetivo testar métodos de indução para produção de células de zangões em abelhas africanizadas (Apis mellifera L.) e avaliar os fatores que interferem na produção de zangões nos períodos de safra e entressafra no semiárido nordestino do Brasil. Os experimentos foram realizados no Centro Tecnológico de Apicultura e Meliponicultura do Rio Grande do Norte (CETAPIS), localizado na Fazenda Experimental pertencente à Universidade Federal Rural do Semi-Árido (UFERSA) geograficamente definida pelas coordenadas 5º03’37‖ de Latitude Sul e 37º23’50‖ de Longitude Oeste, com uma altitude média de 72 metros e clima semiárido. Os dois métodos de indução para produção de células de zangões testados no presente trabalho foram: Adição de um quadro contendo uma folha completa de cera com alvéolos de operárias nas laterais das colônias (segundo quadro) e Adição de um quadro com fitas de 20 cm x 7cm de cera com alvéolos de operárias nas laterais das colônias (oitavo quadro). Além dos métodos, foi verificado o efeito do tamanho populacional da colônia na produção de favos novos contendo células de cria de zangões no período de safra e entressafra, a caracterização da sazonalidade climática, possibilitando a delimitação de dois períodos (Safra e Entressafra) e demonstrando o período de presença natural de zangões, a morfometria dos zangões de abelhas africanizadas em região de clima semiárido e a comparação entre a construção de células de zangões em ambos os lados dos quadros. O resultado dos métodos de indução foi que a adição de um quadro com fitas de 20 cm x 7cm de cera alveolada foi mais eficiente que o adição de um quadro contendo uma folha completa de cera com alvéolos de operárias nas laterais das colônias (p<0,05) no período de safra, porem, ambos os métodos foram ineficientes no período da entressafra. Sobre a associação do tamanho da colônia, foi observado que o tamanho não teve influencia tanto na safra como na entressafra. A sazonalidade climatica demonstrou-se determinante na produção de zangões, onde o período de chuva apresentou uma diferença muito significante (p<0,0001), tendo seus picos nos meses de junho e julho As avaliações morfométricas dos zangões de abelhas africanizadas (Apis mellifera L.) apresentaram resultados médios de 6.37 mm (±0.97) para o comprimento de abdômen, 13.06 mm (±1.8) para o comprimento total e o peso médio de 128 mg. Foi possível averiguar que ambos os lados do quadro são praticamente espelhos, onde possuem quase o mesmo número de células, não apresentando diferença estatística entre elesCoordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPE

    Dispelling the Myths Behind First-author Citation Counts

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    We 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

    Author Index

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    Nao informado

    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We 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 Under Sail The Imagination of Jack London, 1893-1902

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    In 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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