1,720,971 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
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
The complexity of the small intestinal F4 Escherichia coli receptors in pigs and its role in immunization
No full textPost-weaning diarrhea is mainly caused by F4+ enterotoxigenic Escherichia coli (F4+ ETEC), leading to severe economic losses. Three different F4 variants exist, F4ab, F4ac and F4ad, with pigs showing adhesion of one or more of these variants or completely F4 receptor negative (F4R-). For long-term management of the infection, selection for F4R- pigs and/or vaccination of F4R+ pigs seems to be the best strategies to prevent postweaning diarrhoea. However, neither the causal mutation resulting in F4+ ETEC resistance nor the biochemical nature of the F4R have been determined yet. This thesis aimed to characterize and identify F4R glycoprotein(s).
In the first study, we evaluated the prevalence of the F4+ ETEC susceptible phenotypes among Flemish pig breeds using an in vitro villous adhesion assay. Based on adhesion of the 3 F4 variants, seven different F4+ ETEC susceptible phenotypes were found. Overall, F4ab and F4ac E. coli adhered more numerous to intestinal villi than F4ad E. coli. The completely resistant phenotype E was found in 24.08% of the pigs. F4acR+ pigs can be orally immunized with F4ac fimbriae, one of the criteria used to select pigs for F4R glycoprotein characterisation. However, most pigs have F4ac-specific maternal antibodies, which mask the serum antibody response upon oral immunization.
Therefore, we established in the second study an ELIspot test to detect the antibody response in piglets having colostral F4ac-specific serum antibodies. This test allowed us to identify circulating F4ac-specific antibody secreting cells (ASCs). Total F4ac-specific ASCs as well as IgA F4ac-specific ASCs revealed an F4ac-specific antibody response in the orally immunized animals with maternal antibodies in the absence of an increase in serum antibodies. Interestingly, the IgA F4ac-specific ASC response on enriched IgA+ B cells elucidated a more robust IgA booster response upon oral immunization of pigs with than without maternal antibodies.
To select potential intestinal F4R glycoproteins, we determined in the third study the binding profile of the three F4 variants to SDS-PAGEseparated intestinal brush border membrane proteins of pigs differing in: (1) the F4ac-specific antibody response upon oral immunization, (2) the in vitro adhesion of F4+ E. coli to villi, and (3) in their MUC4 genotype. As such we identified six groups of pigs: one negative for all tests and five F4R+ groups. Only two out of five were positive in all three assays and showed the same F4-specific binding bands. Although, putative F4Rs must be present in the other three F4R+ groups, no potential F4-binding band could be identified in those groups.
In the last study, the F4-specific binding bands were purified using different methods including an F4acR pull-down assay, sequential chromatographies, continuous-elution electrophoresis followed by separation with 1D or 2D SDS-PAGE and by shotgun mass spectrometry. Several identified candidates were tested for their presence in F4R+ brush border membranes. One of the candidates showed high potential to be an F4acR.
Exploring the genetic and biochemical nature of the F4Rs shows to be complex. Till now, F4Rs have been studied for more than 20 years. Yet both the causal mutation and the identity of the F4Rs are still unresolved. Several reasons impede its discovery, including the complexity of the susceptibility phenotypes (due to the three F4 variants, the use of different pig breeds and non-uniform selection of animals in different studies), the complexity of F4R characteristics and limited knowledge of genetic information. Further study on our F4acR candidate will be useful to identify mutation(s) responsible for F4+ ETEC susceptibility
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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