1,721,148 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
Diagnosis, molecular epidemiology and control of avian intestinal spirochaetosis
Full text linkAvian intestinal spirochaetosis (AIS) is a condition of laying and breeding hens resulting from colonisation of the large intestine with anaerobic intestinal spirochaetes of the genus Brachyspira. The main causative species in Australia are B. intermedia and B. pilosicoli. Infection with these species can lead to wet litter and reduced egg production. Currently, little is known about how these organisms enter flocks and spread, or how to control them. The economic losses to the poultry industry caused by AIS are thought to be significant, however problems with diagnostic techniques have resulted in this disease often being overlooked.
The major aims of this thesis were to expand understanding of the epidemiology and cycles of transmission of B. intermedia and B. pilosicoli, measure the effectiveness of six disinfectants, develop faster and more reliable diagnostic identification methods, and to investigate effects of diet on colonisation by the spirochaetes.
An epidemiological study on a laying hen farm detected infection with three different Brachyspira species, with multiple strains of these species being present. Infection appeared to have originated from other birds on the site rather than from environmental sources. Experiments showed that B. intermedia and B. pilosicoli survived in chicken faeces for between 2 and 17 hours at 37oC. B. intermedia tended to survive longer than B. pilosicoli, but the maximum survival time for both species at 4oC was only 72-84 hours.
A study was then conducted into the efficacy of some common disinfectants in inactivating B. intermedia and B. pilosicoli. Six disinfectants were evaluated at their recommended working concentrations. All but alkaline salts inactivated two different concentrations of both spirochaete species in less than one minute in the presence of organic matter. Taken together, these results suggest that it should be relatively easy to break the cycle of infection by emptying, cleaning and disinfecting sheds between batches of birds.
To improve diagnostic methodology, a two-step nested duplex PCR (D-PCR) was developed for detection of B. pilosicoli and B. intermedia, using DNA extracted from washed chicken faeces. The new test could provide results within 24 hours of sample receipt, and detected 4-5% more positive faecal samples than selective culture followed by individual species-specific PCRs.
Finally, studies were conducted in experimentally-infected laying hens to investigate potential interactions between diet and colonisation with B. intermedia or B. pilosicoli. In the first experiment, the addition of zinc bacitracin or dietary enzymes to a wheat-based diet reduced colonisation by B. intermedia. In subsequent experiments, it was shown that diets based on wheat predisposed to colonisation with B. intermedia compared to diets based on barley or barley and sorghum. Subsequently, wheat variety Westonia was shown to increase susceptibility to B. intermedia but decrease it to B. pilosicoli, compared to a diet based on wheat variety Stiletto. There was no clear relationship between the soluble non-starch polysaccharide content of a given diet, the viscosity of the digesta in the ileum, or colonization with the spirochaete species. Addition of different dietary enzymes did not significantly reduce the digesta viscosity in the ileum, or significantly influence faecal water content.
In flocks with persistent problems with AIS consideration should be given to modifying the diet, and, in particular, cereals other than wheat should be used. The wheat variety could be altered, but the addition of dietary enzymes to such wheat-based diets is not particularly reliable as a sole means of controlling AIS
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
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
- …
