1,720,953 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
Contribution of fertilizers to the economic and environmental performance of sugarcane ethanol
No full textOrientador: Joaquim Eugênio Abel SeabraDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia MecânicaResumo: A cana-de-açúcar é a cultura mais promissora no que diz respeito a fontes de energia renováveis, com a produção de etanol e biomassa para cogeração de energia, a qual representa uma alternativa ambiental e econômica para reduzir as emissões de gases do efeito estufa. No entanto, de forma crescente, a agricultura é vista como grande contribuidora para as emissões de gases do efeito estufa, principalmente advindos da utilização de fertilizantes nitrogenados, os quais são de grande importância para que a cultura se desenvolva de maneira produtiva. Neste sentido, este trabalho objetivou analisar os impactos econômicos e ambientais da utilização de fertilizantes para a produção de cana-de-açúcar, visando o produto final do etanol. As análises econômicas foram baseadas no banco de dados do PECEGE, quanto aos custos de produção de uma região produtora de cana a qual tem grande representatividade dos fertilizantes nos custos (Goiatuba), sendo gerados três cenários para comparação de custos: i) produção agrícola considerando apenas fertilizantes minerais; ii) considerando a utilização dos resíduos industriais torta de filtro e vinhaça in natura como fertilizantes orgânicos e complementação com fertilizantes minerais; iii) considerando a utilização dos resíduos industriais torta de filtro e vinhaça concentrada e complementação com fertilizantes minerais. Os mesmos cenários foram considerados para cálculo dos impactos ambientais, sendo que foram calculados a utilização de diesel referentes às operações nos três cenários e as emissões advindas dos fertilizantes nitrogenados, posteriormente os valores foram utilizados em uma análise de ciclo de vida para a região, comparando-se os resultados. Os resultados econômicos apresentaram os valores de custo total para produção de etanol mais competitivos quando há utilização dos fertilizantes orgânicos, especialmente no cenário em que há aplicação de vinhaça concentrada. Quanto aos resultados ambientais, há um aumento da utilização de diesel nos cenários com aplicação de fertilizantes orgânicos, no entanto, a redução nas emissões totais do uso de fertilizantes minerais é compensadora. Dessa forma, a utilização dos resíduos industriais torta de filtro e vinhaça são alternativas viáveis para substituição de fertilizantes minerais, no entanto, maiores estudos sobre as tecnologias disponíveis e as fontes de fertilizante mineral para complementação se fazem necessáriosAbstract: Sugarcane is the most promising crop on renewable energy sources, with the production of ethanol and biomass for energy cogeneration, which represents an environmental and economic alternative to reduce greenhouse gas emissions. Increasingly, however, agriculture is seen as a major contributor to greenhouse gas emissions, mainly from the use of nitrogen fertilizers, which are of great importance for the development of crops in a productive way. In this sense, this work aimed to analyze the economic and environmental impacts of the use of fertilizers for the production of sugarcane, directed to the final product of ethanol. The economic analyzes were based on the PECEGE database, regarding the production costs of a sugarcane producing region, which has a big representativeness of fertilizers in the costs (Goiatuba), generating three scenarios for cost comparison: i) agricultural production considering only mineral fertilizers; ii) considering the use of industrial waste, filter cake and vinasse in natura, as organic fertilizers, and supplementation with mineral fertilizers; iii) considering the use of industrial waste filter cake and concentrated vinasse and supplementation with mineral fertilizers. The same scenarios were considered for calculation of the environmental impacts, and the use of diesel for the operations in the three scenarios and the emissions from the nitrogen fertilizers were calculated, later the values were used in a life cycle analysis for the region, comparing the results. The economic results presented the most cost-competitive values for ethanol production when organic fertilizers are used, especially in the scenario where concentrated vinasse is applied. Regarding the environmental results, there is an increase in the use of diesel in the scenarios with application of organic fertilizers, however, the reduction in total emissions from the use of mineral fertilizers is compensatory. Thus, the use of industrial waste filter cake and vinasse are viable alternatives for replacement of mineral fertilizers, however, further studies on available technologies and sources of mineral fertilizer for supplementation are necessaryMestradoPlanejamento de Sistemas EnergeticosMestra em Planejamento de Sistemas Energéticos01-P-4371/2015CAPE
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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