1,720,958 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
Genetics and functional characterization of GATA2: a novel cancer gene in familial leukaemia.
Get PDFWe first report GATA2 mutations (heterozygous) in 4 families that are susceptible to MDS/AML (3 large families) and MDS (1 small family). Molecular analysis revealed a germline transmission of a GATA2 missense mutation (T354M) in MDS/AML families and a GATA2 deletion mutation (T355del) in MDS family. Neither germline RUNX1 nor CEBPA mutations were found in these families, in 695 non-leukemic ethnically matched controls and 268 sporadic AML samples. The mutations resided within the GATA2 zinc finger 2 domain, a critical region for DNA-binding and protein-protein interactions, but not for nuclear localization. T354M reduced DNA binding ability of GATA2; whereas, T355del bound very little, if any, to the consensus WGATAR DNA motif. T354M and T355del also significantly reduced the transactivation of GATA2 in known GATA2 responsive sequences. Moreover, co-transfection of T354M or T355del with WT reduced WT transactivation ability, suggesting that these mutants act in a dominant negative fashion. Regulatable stable promyelocytic HL- 60 cells expressing WT and mutants were generated. Forced expression of WT and T354M inhibited HL-60 cell differentiation when induced with all trans retinoic acid. However, when compared to WT, T354M enabled cell proliferation/survival while simultaneously reducing apoptosis. In contrast, T355del was a complete loss-of-function mutant. Microarray studies elucidated that both T354M and T355del significantly decreased the expression of downstream target genes. Together, our data suggest that both T354M and T355del are loss-of- function mutations with some dominant negative attributes. Recently, we and others have described GATA2 genetic lesions in other diseases. We further investigated in vitro functions of an alllelic series of GATA2 mutants representing the major disease phenotypes: MDS/AML (T354M), MDS (T355del), CML-BC (L359V), Emberger syndrome (R361L and C373R), AML-M5 and biallellic CEBPA AML (R362Q), and immunodeficiency syndrome (R398W). We showed that these GATA2 mutants (except L359V) are loss-of-function that reduce DNA binding affinity and transactivation of target genes. Nevertheless, they maintain the ability to bind to known protein binding partners. Intriguingly, T354M and C373R have an enhanced affinity for PU.1, highlighting that these mutants can influence both DNA-binding and protein-protein interaction. Preliminary transduction of Gata2 WT or mutant expression constructs into mouse whole bone marrow cells demonstrated that GATA2 mutants did not confer self-renewal capacity, but allowed specific myeloid progenitor differentiation. We further demonstrated that Gata2 is expressed in lymphatic endothelial cells and that it can bind to and transactivate a Prox1 promoter/enhancer element (PEE) region. Prox1 is required for lymphatic development and maintenance, and hence Gata2 may contribute to lymphoedema throught its action on Prox1. Intriguingly, Gata2 mutants displayed differential binding affinity to two GATA binding sites and reduced transactivation of the PEE region. Furthermore, an enhancer region 11.3kb upstream of Prox1 is activated by GATA2, FOXC2 and SOX18, but repressed by PROX1 itself suggesting that these key lymphatic TFs may cooperate to regulate Prox1 expression. In conclusion, I present the experimental work for the landmark discovery of a new MDS/AML predisposition gene. I have also characterized the molecular landscape of GATA2 mutations where each of the mutations confers specific and major effects on GATA2 function, but where there are also subtle differences between the mutants in the contexts of DNA binding and transactivation.Thesis (Ph.D.) -- University of Adelaide, School of Medicine, 201
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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