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
Field investigation of subgrade non-uniformity effects on concrete pavement
Get PDFThe traditional method of designing concrete pavements is through the assignment of a single modulus of subgrade reaction (k-value) to the soil for the section under consideration. It is well known that soil under pavement is not a homogenous, elastic, and isotropic half-space but varies spatially due to variations in the soil geological properties, environmental factors, and construction methods. Few studies have attempted to characterize this heterogeneous behavior as non-uniform subgrade support, theoretically analyze its effect on slab responses, or its effect on concrete pavement performance.
This research has collected geotechnical data from two roadway sections in Michigan, MI I-94 and MI I-96, to characterize the effects of the foundation layer spatial non-uniformity on tensile stress changes in a concrete slab. For both the MI I-94 and MI I-96 roadway section, k-values were correlated from field Dynamic Cone Penetrometer (DCP) tests that were either deterministically or randomly assigned to a predefined area size. These spatial plots were discretized into various uniform area sizes to compare tensile stresses from a non-uniform support under a concrete pavement to a uniform support condition. The individual area sizes varied from 0.7x0.7 m2 and 1.16x1.16 m2. A 2-D finite element program was used to analyze the critical slab tensile stresses for multiple uniform and non-uniform conditions subjected to three axle configurations, loading paths, and temperature differentials.
The results for MI I-94 stress analysis showed that the deterministic assignment of k-value from the field did not result in any significant increase in critical tensile stresses compared to the uniform support assumptions even for varying individual area sizes. However, when the k-value of the foundation layer was randomly assigned to these individual areas, using a normal distribution, for a soft subgrade (k-value = 63 psi/in and standard deviation = 25.6 psi/in), the overall peak tensile stresses along the edge loading path increased by 31% and the average peak tensile stress increased by 37%. The greatest increase in tensile stresses relative to the uniform support condition occurred for individual support areas of 1.16x1.16 m2. When the k-value was randomly assigned with a beta (B) distribution for a lower limit of 20 psi/in, there was no increase in the overall peak tensile stress in the slab relative to the uniform support condition. Although the section with stiffer soil (mean k-value = 397 psi/in), MI I-96, had a large range in measured k-values, it only increased the overall peak tensile stresses in the slab relative to uniform support conditions by 11% when randomly assigned to 81 k-value areas and increased the tensile stress by 6% when the k-values were deterministically assigned.
The field data and theoretical analysis presented in this research has shown that non-uniform support conditions can lead to significantly higher slab stresses under certain geometric, loading, and slab support conditions. Non-uniform support along the edge of the slab especially very low support values near the location of maximum tensile stress substantially increased the slab tensile stresses. These tensile stresses are further increased under daytime temperature curling. Variability in the foundation stiffness had a larger impact on slabs supported by softer soils relative to stiff soils. For the inputs analyzed in this study, the size of the individual area of uniform support defined around 1 m2 produced the greatest increase in tensile stress in the slab. Detection and treatment of areas of weak and variable support along the anticipated free edges of the slab are important to improving the performance of concrete pavements.Item withdrawn by Mark Zulauf ([email protected]) on 2012-08-23T20:18:55Z
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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
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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