1,720,980 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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Radial Shape Discrimination in eyes at high risk of developing neovascular Age-Related Macular Degeneration
No full textAims
The aim of this study was to investigate the use of a novel handheld Radial Shape Discrimination test (the hRSD test) in eyes at high risk of developing neovascular Age-Related Macular Degeneration (nAMD). The properties of the hRSD test that were investigated include the test-retest repeatability and the stability over time in clinically stable participants. The relationship between hRSD scores and other measurements of visual function (visual acuity, VA and contrast sensitivity, CS) were explored along with the relationship with retinal structural changes (foveal large drusen, ellipsoid zone disruption, EZD and central subfield thickness, CST).
Methods
A sample of 100 participants with unilateral nAMD was recruited from a UK ophthalmology clinic. The unaffected eye (the study eye, SE) had no evidence of nAMD, VA≤0.4 logMAR and was considered to be at risk of developing nAMD due to contralateral involvement. Participants performed the hRSD test on five consecutive visits, spread over approximately six months. All participants performed VA and Optical Coherence Tomography (OCT) at all visits. CS was measured in a subgroup of 34 participants. A usability questionnaire was completed at the last visit.
Results
The overall mean hRSD score in SEs was -0.56 ±0.16 (95%CI -0.60 to -0.53) logMAR for a group whose mean age was 77±7 years. Older participants had worse hRSD scores (r=0.37, p=0.0005) which corresponded to a deterioration of 0.08 logMAR per decade (slope of the linear regression). The test-retest repeatability over two consecutive visits revealed good agreement (bias=-0.004 logMAR, upper and lower limits of agreement: 0.27 and -0.28 logMAR). The coefficient of repeatability over five visits was 0.33 logMAR. There were no trends seen (no learning effects). The hRSD test was less repeatable than VA when compared by means of intraclass correlation coefficients (0.85 vs. 0.93). No correlation was seen between hRSD and VA (p=0.9) or CS (p=0.1). Of the three aspects of retinal structure investigated, only large drusen and EZD had a significant effect on hRSD scores (p=0.02 and p=0.01). Finally, the usability questionnaire revealed a very good acceptability of the test.
Discussion
The hRSD test has been suggested to be an effective mean of detecting nAMD. This study contributes to the ongoing assessment of the hRSD test in a key population with eyes at risk of nAMD. Understanding the performance of tests in the absence of disease progression is important to correctly interpret potential changes as clinically or non-clinically significant. Although the hRSD test was less repeatable than VA, the degree of variability can be considered acceptable in view of the large dynamic range seen between early and late AMD. The hRSD test has the advantage of being portable, capable of self-administration and well accepted by patients. The results from this study support the idea that the hRSD test is a better indicator of foveal integrity in the early stages of AMD compared to VA, as shown by the results of the correlations with structural parameters
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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