1,720,968 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
土地利用对卢旺达基伍湖的潜在影响分析
No full text湖泊富营养化是一个关键的环境问题，它依赖于流域内养分的可获得性以及它们向湖泊移动的可能性。流域内养分的移动在很大程度上受土地利用变化的影响。本研究通过分析土地利用的潜在影响，以期找出卢旺达基伍湖外部营养物的来源。研究的主要工作有：分析入湖河流水质的空间分布和湖泊富营养化状况与相邻土地利用类型的关系，比较和评估土地利用类型对土壤剖面理化性质的影响，以及评估生计多样性对土地利用变化的影响。利用国家卫生基金会水质指数（NSFWQI）和河流污染指数（RPI）对排入湖泊的河流水质进行了空间分析。研究表明水质与临近土地利用/覆被和地形之间存在关系。17.5％的未污染的河流位于林地占主导的地区，26％的中度污染受到综合土地利用类型以及坡度和热带降雨的影响。此外，56.5％的河流被农田占优势的土地所包围。通过分析湖泊养分状况、有机物指标、盐度和浮游植物丰度指标等，研究了不同季节变化下湖泊富营养化与流域土地利用之间的关系。研究表明，雨季湖泊富营养化与土地利用方式之间的相关度比旱季更高。无论雨季还是旱季，与其它土地利用类型相比，农田与水质具有更高的相关性。通过引入土地利用的地形特征分析，其结果表明：在坡度大的地区，土地利用对湖泊富营养化的影响比小坡度地区更大。在不同土地利用类型对土壤理化性质影响方面，本研究分析了覆膜咖啡（MC）、间作咖啡（IC）和未覆膜咖啡（UC）三种咖啡农业系统下不同土地利用类型的土壤理化性质。结果表明，表土层和亚土层的土壤有机碳含量、Ca2+、Mg2+、Na+、K+、N、P 和 pH值指标均表现为 MC> IC> UC，土壤容重（BD）不仅呈现出相反的顺序（MC < IC <UC），而且还随着土壤深度的增加而增加。MC、IC、UC 三种农业耕作系统的土壤容重与土壤深度的相关性分别为 0.90、0.95、1，土壤容重与 SOC 的预测相关系数分别为- 0.94、-0.97、-0.99。最后，土地利用变化的预期影响支持将生计多样性战略纳入更广泛的自然环境评估的必要性。人口增长和土壤肥力退化是紧密相关的，其内在关系并不能用于解释引入其他耕作方式而放弃传统的常规耕作实践的理由。为了解外部养分入湖的复杂性，本研究对流域景观进行了综合分析。同时，本研究建议通过更好的土地利用管理来提高水质，例如适当的保护水土和特别关注农田的方法。本研究用于监测土壤质量动态和预测土地利用变化对土壤质量的影响需要进一步调查
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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