1,720,955 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
Efficiency of Fertiactyl® in protecting eucalyptus plants affected by glyphosate drift
No full textO glyphosate é o herbicida mais utilizado no manejo de plantas daninhas em florestas de eucalipto, por ter um custo mais baixo e utilizar um menor número de mão-de-obra para sua aplicação. Porém, é comum ocorrer deriva e, consequentemente, o contato com as outras plantas de eucalipto, podendo proporcionar sintomas de fitotoxicidade afetando a produtividade e a qualidade da madeira. Portanto, torna-se necessário encontrar formas de minimizar os efeitos deletérios do glyphosate nas plantas de eucalipto, seja por melhorias na tecnologia de aplicação ou pelo uso de protetores. O Fertiactyl tem sido relatado com potencial biorreparador na redução da intoxicação causada pela deriva do glyphosate. Considerando que os mecanismos pelos quais a proteção do Fertiactyl contra ação do glyphosate no eucalipto não são conhecidos, buscou-se avaliar, nessa pesquisa, o efeito da associação do boro ao Fertiactyl na redução de mortes do ponteiro provocadas pelo glyphosate, e o efeito do Fertiactyl na absorção e translocação de 14 C-glyphosate em plantas de eucalipto na redução da intoxicação de clones de eucalipto. Foram conduzidos dois experimentos em casa de vegetação da Universidade Federal de Viçosa, Viçosa-MG, para avaliar a proteção do Fertiactyl contra a ação do glyphosate em clones de eucalipto, e a resposta da associação do boro ao Fertiactyl sobre a morte de gemas apicais. Outro experimento foi realizado no Laboratório de Ecotoxicologia do Centro de Energia Nuclear na Agricultura (CENA/USP), Piracicaba, SP, para avaliar o efeito do Fertiactyl na absorção e translocação de 14 C-glyphosate em plantas jovens de eucalipto. No primeiro experimento, observou-se que há diferenças na sensibilidade de clones de eucalipto ao glyphosate, e que o Fertiactyl protegeu os três clones contra intoxicação por glyphosate. No segundo, notou-se que quando o glyphosate foi aplicado na dose de 720 g ha -1 , o Fertiactyl sem o boro reduziu a morte de gemas apicais; todavia, não houve efeito para a dose de 1440 g ha -1 do herbicida. Quando o boro foi adicionado à calda juntamente com Fertiactyl, verificou-se que não houve morte das gemas apicais do eucalipto, nas duas doses de glyphosate estudadas. E, no terceiro, o Fertiactyl diminuiu a absorção e a translocação do 14 C-glyphosate. Nesta pesquisa mostrou-se que os efeitos danosos do glyphosate ocorrem em diferentes níveis de acordo com a suscetibilidade dos clones de eucalipto ao herbicida. O Fertiactyl apresenta um potencial de proteção em clones de distintas sensibilidades e a combinação Fertiactyl e boro amplia consideravelmente a proteção contra os danos promovidos pelo glyphosate, indicando que o boro possui potencial para compor a formulação de Fertiactyl para uso no manejo de plantas daninhas na cultura do eucalipto. O efeito protetor do Fertiactyl ocorre quando ele é aplicado com glyphosate em mistura em tanque, pois diminui a absorção e a translocação do glyphosate pelas plantas de eucalipto. Palavras-chave: EPSPS. Fitotoxicidade. Safener. Seletividade.Glyphosate is the most widely used herbicide for wedd management in eucalyptus forests, as its low cost and occupy less labor for its application. However, it is common to experience glyphosate drift, i.e., the herbicide comes into contact with eucalyptus plants, causing symptoms of phytotoxicity affecting wood productivity and quality. To minimize the deleterious these glyphsote effects, it becomes necessary to find ways either through improvements in application technology or through the use of protectors. Fertiactyl has been reported to have a bioregenerative potential in reducing intoxication caused by glyphosate drift. Considering that the mechanisms by which the protection of Fertiactyl against the action of glyphosate in eucalyptus are not known, we evaluatedthe effect of the association of boron with Fertiactyl in reducing pointer deaths caused by glyphosate, and the effect of Fertiactyl in the absorption and translocation of 14 C-glyphosate in eucalyptus plants to reduce the intoxication of eucalyptus clones. Two experiments were conducted in a greenhouse at the Federal University of Viçosa, Viçosa-MG, to evaluate the protection of Fertiactyl against glyphosate drift on eucalyptus clones, and the response of the association of boron to Fertiactyl on the death of apical buds. Another experiment was carried out at the Ecotoxicology Laboratory of the Center for Nuclear Energy in Agriculture (CENA/USP), Piracicaba, SP, to evaluate the effect of Fertiactyl on the absorption and translocation of 14 C-glyphosate in young eucalyptus plants. In the first experiment, differences in the sensitivity of eucalyptus clones to glyphosate were observed, and Fertiactyl protected the three clones against herbicide intoxication by glyphosate drift. In the second experiment, there was no death of the apical buds of the eucalyptus plants when boron was added to the syrups of glyphosate (720 or 1440 g ha -1 ) + Fertiactyl. However, when plants were treated without boron, the reduction in apical bud death was observed only at the dose of 720 g ha -1 glyphosate + Fertyactyl. And in the third, Fertiactyl decreased the absorption and translocation of 14 C-glyphosate. In this research it was demonstrated that harmful effects of glyphosate occur at different levels according to the susceptibility of the eucalyptus clones to the herbicide. Fertiactyl has the potential to protecteucalyptus clones, with different sensitivities, fron the glyphosate drift.and the addition boron incresed the protective action of Fertiactyl against glyphosate drift, suggesting that boron may be a potential component of Fertiactyl formulation for use in the weed management in eucalyptus plantations. The protective effect of Fertiactyl occurs when it is applied with glyphosate in tank mix, as it reduces the absorption and translocation of glyphosate by eucalyptus plants. Keywords: EPSPS. Phytotoxicity. Safener. Selectivity
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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