1,720,997 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
A role of PIEZO1 activation in erythroid differentiation of normal and hereditary xerocytosis-derived human progenitors
No full textLa stomatocytose héréditaire à cellules déshydratées, ou xérocytose héréditaire (XH) est une pathologie autosomique dominante de la membrane des globules rouges, essentiellement causée par des mutations "gain de fonction" de PIEZO1. PIEZO1 est un canal ionique mécanosensible capable de transformer un stimulus mécanique en un influx de calcium. Nous avons découvert que PIEZO1 est précocement exprimé au cours de l'érythropoïèse. Pour la première fois, nous montrons que l'activation de PIEZO1 ralentit significativement la différenciation érythroïde, à la fois des lignées cellulaires et des cellules primaires humaines. Cet effet est spécifique de PIEZO1 puisqu'il est bloqué par un knockdown spécifique via shRNA. Dans les cellules primaires humaines, PIEZO1 maintient plus longtemps les cellules érythroïdes à un stade immature, et favorise la transcription de gènes associés à l'érythropoïèse précoce, avec majoration du rapport GATA2/GATA1 et diminution de l'expression des α/β-globines. L'activation de PIEZO1 réduit la prolifération cellulaire, avec une accumulation de cellules en phase G0/G1 du cycle cellulaire. L'effet médié par PIEZO1 requiert un influx calcique, et l'activation des voies NFAT et ERK1/2 en aval. Dans les cellules érythroïdes primaires, l'activation de PIEZO1 potentialise la réponse à l'EPO pour activer STAT5 et ERK, ce qui suggère une modulation des voies de signalisation en aval de l'EPO-R. Le retard de différenciation érythroïde in vitro a été confirmé de façon hétérogène chez 14 patients présentant une mutation PIEZO1, issus de 11 familles, porteurs de 10 mutations différentes. Nous explorons actuellement les voies dépendantes du calcium potentiellement impliquées en aval de PIEZO1, et la PKCalpha représente un bon candidat pour établir le lien entre le calcium et la signalisation EPO-dépendante. Nos données soulignent un nouveau rôle pour PIEZO1 au cours de l'érythropoïèse, qui révèle ainsi de nouvelles connaissances sur la physiopathologie des XHHereditary xerocytosis (HX) is a dominant red cell membrane disorder mostly caused by gain-of-function mutations in PIEZO1. PIEZO1 encodes a mechanosensitive ion channel that translates a mechanic stimulus into calcium influx. We found that PIEZO1 is expressed early in human erythroid progenitors. We show for the first time that PIEZO1 activation enables a significant slowdown in erythroid maturation kinetics, both in cell lines and human primary cells. This effect is PIEZO1-dependant since reverted using a specific shRNA knockdown. In human primary cells, PIEZO1 maintains erythroid cells longer at an immature stage and modify the transcriptional balance in favor of genes associated with early erythropoiesis, as shown by a high GATA2/GATA1 ratio and a decreased α/β-globin expression. We also observe a reduced proliferation rate, with accumulation of cells in G0/G1 of cell cycle. PIEZO1-mediated effects require calcium-dependent activation of NFAT and ERK1/2 pathway. In primary erythroid cells, PIEZO1 activation synergizes with EPO to activate STAT5 and ERK, suggesting a modulation of signaling pathways downstream EPO-R activation. The delayed in vitro erythroid differentiation is confirmed in progenitors from 14 PIEZO1-mutated patients, from 11 families, carrying 10 different mutations, with heterogenous intensity. We are currently exploring calcium dependent pathways involved downstream PIEZO1, and PKCalpha represents a good candidate to make the link between calcium and EPO signaling. Our data demonstrate a new role for PIEZO1 during erythropoiesis, that may reveal new insights in the pathophysiology of H
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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