1,720,966 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
Variação paleosecular e paleointensidade relativa do campo geomagnético no sul do Brasil entre 45 e 3 mil anos
Get PDFO campo geomagnético terrestre, gerado no núcleo externo fluido, apresentou grandes flutuações no passado, incluindo a ocorrência de excursões e reversões geomagnéticas. Além disso, o campo terrestre apresenta uma feição de baixa intensidade, a Anomalia Magnética do Atlântico Sul (AMAS), que pode estar diretamente associada a mudanças do campo interno. Os modelos de campo principal e sua variação secular são amplamente utilizados em estudos sobre a dinâmica das camadas externas do núcleo da Terra. Os dados nos quais os modelos do campo principal se baseiam devem ser da mais alta qualidade e distribuídos da forma mais homogênea possível em todo o mundo. No entanto, os dados globais são provenientes basicamente de registros localizados no Hemisfério Norte. O objetivo desta Tese é estudar a variação paleosecular (PSV) do campo geomagnético em quatro testemunhos de sedimentos localizados em uma região com pouquíssimos registros paleomagnéticos. Os testemunhos de lago PT-04 e PT-06 coletados no sul do Brasil, foram datados em um período que corresponde ao Holoceno recente, de ~4541 a ~3320 anos atrás. Os testemunhos marinhos SAT-048A e SIS-188, coletados no oeste do Atlântico Sul, foram datados em um período entre o Pleistoceno recente e o Holoceno médio, de ~46500 a ~5450 anos atrás. Os parâmetros magnéticos monitorados nos quatro testemunhos indicaram uma boa preservação do campo paleomagnético, comprovando a confiabilidade de estudos sobre o campo geomagnético em sedimentos. A paleointensidade relativa observada nos quatro testemunhos mostra semelhanças com outros registros da América do Sul e de regiões oceânicas próximas, além de coincidir com predições de modelos geomagnéticos para a região. Isso se dá, principalmente, pela baixa variação da mineralogia magnética ao longo do testemunho, composta principalmente por magnetita. Nos dados do Atlântico Sul foram identificadas variações marcantes na inclinação e paleointensidade relativa, possivelmente associadas à excursão Laschamp. As curvas da PSV construídas a partir de amostras dos testemunhos coletados no sul do Brasil indicaram uma provável associação à presença da AMAS. No entanto, é importante enfatizar que os dados disponíveis para essa região ainda não são suficientes para tirar conclusões mais definitivas.The Earth's geomagnetic field, generated in the fluid outer core, has exhibited significant fluctuations in the past, including geomagnetic excursions and reversals. Additionally, the Earth's field features a low-intensity anomaly, the South Atlantic Magnetic Anomaly (SAMA), which may be directly linked to internal field changes. Main field and secular variation models are widely used in studies of Earth's outer core dynamics. However, global data primarily originate from records in the Northern Hemisphere. This Thesis aims to investigate paleosecular variation (PSV) of the geomagnetic field in four sediment cores located in a region with limited paleomagnetic records. Lake cores PT-04 and PT-06 from southern Brazil date to the late Holocene period, approximately from 4541 to 3320 yrs BP. Marine cores SAT-048A and SIS-188 from the western South Atlantic date from the late Pleistocene to the middle Holocene, approximately from 46500 to 5450 yrs BP. Magnetic parameters monitored in the four cores indicate good preservation of the paleomagnetic field, validating sediment-based geomagnetic field studies. The observed relative paleointensity in the cores shows similarities with other South American records and nearby oceanic regions, aligning with geomagnetic model predictions for the area. This is mainly due to minimal variation in magnetic mineralogy throughout the cores, predominantly composed of magnetite. Significant variations in inclination and relative paleointensity were identified in South Atlantic data, possibly associated with the Laschamp excursion. PSV curves from samples collected in southern Brazil suggest a probable association with the presence of SAMA. However, it's crucial to emphasize that data available for this region are still insufficient for more definitive conclusions
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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