1,720,953 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
The Effect of Intercalation on the Structure and Properties of Layered MSe2 (M = Nb, Ti)
No full textLayered (2D) materials are an intriguing class of materials which has fascinated the researchers around the globe due to their excellent mechanical flexibility, reduced dimensionality and interlayer van der Waals interaction. The tunable dimensionality, availability of larger surface area and weak interlayer interaction of these 2D materials provides manifold applications in the field of electronics, optoelectronics, catalysis, energy generation and storage, spintronics, chemical and biological sensors, solar cells, supercapacitors, etc. 2D materials covers various classes of layered materials starting from organic layered materials, layered oxides, layered halides and layered chalcogenides. Particularly, layered transition metal dichalcogenides (LTMDs) have attracted enormous research attention because of their broad range of electronic properties from insulator to superconductors. Further, the structural and physical properties of LTMDs, specifically group IV, group V, and group VI metal chalcogenide, can be tuned by intercalating with various intercalants. The thesis highlights the effect of various type of intercalant on the structure and properties of 2H–NbSe2 and 1T–TiSe2. The thesis can be divided majorly into seven chapters, where the first two chapters include introduction to LTMDs, synthetic process and characterization tools used to study the various effects of intercalation. An introduction to the LTMDs, the polytypic behavior, charge density wave (CDW), superconductivity, intercalation process is briefly presented in chapter one. Chapter two details a comprehensive synthetic process i.e., high temperature solid-state method and the associated processes for synthesis of pure phase intercalated LTMDs. Further to identify and analyze the phases, various characterization techniques that applied along with the working theories, instrument details and data collection conditions are entailed in chapter two. The third, fourth and fifth chapters detail the effect of p-block, s-block and d-block element intercalant, respectively on the structural and physical properties of 2H–NbSe2. The detrimental effect of Sn (p-block) intercalation on the superconductivity of 2H–NbSe2 is studied in chapter three on the basis of data obtained from powder XRD, Raman spectroscopy, magnetic and resistivity properties measurements. The intercalation process suppresses the superconductivity of 2H–NbSe2, which is related to the lattice expansion due to the insertion of Sn in the vdW gap and a plausible explanation on the valence factor of intercalant on the properties is included. On the other hand, Mg (s-block element) have a minimal effect on the superconductivity and also on the structure. The said effect has been explained through theoretical and experimental studies and attributed to the unfavorable interaction of Mg with NbSe2 layers in MgxNbSe2. Furthermore, Fe (d-block element) has an interesting effect on the structural property of 2H–NbSe2. At 900 ℃, a mixture phase (2H+4H) is obtained for pristine NbSe2. Intercalation of Fe in the octahedral void of vdW gap results in three distinct type of phase transition in FexNbSe2. In composition range 0 ≤ x < 0.2 the mixture phase transforms to 2H phase where Fe is randomly distributed throughout the vdW gap. Further increase in Fe content in FexNbSe2 (0.2 < x ≤ 0.25), the 2H phase transform to an ordered 2 x 2 x 1 superstructure denoted as 2H(I) phase, which crystallizes in the same space group (P63/mmc) as that of the parent compound and Fe atoms occupy alternate octahedral (Oh) void in an ordered manner. Finally in the range of 0.25 < x ≤ 0.5, the 2 x 2 x 1 superstructure transforms to √3 x √3 x 1 superstructure with a polar space group P6322. Intercalation of Fe induces antiferromagnetism. The disordered phase shows weak short range antiferromagnetism and spin glass like behavior below 25 K. The ordered phase, Fe0.25NbSe2, show a long range antiferromagnetic ordering at a much higher temperature as compared to the disordered phase with TN = 144 K. Further increase in Fe content, the antiferromagnetic ordering temperature decreases to 60 K for Fe0.40NbSe2. The variation of the magnetic ordering temperature strongly correlated with the structure and position of magnetic ions. The sixth chapter describes the effect of Sn, Pb and Dy intercalants on the structure and properties of 1T–TiSe2. Particularly, a detailed study on the effect of Dy intercalation on the structure and magnetic properties has been carried out. Dy has a minimal effect on the structure of 1T–TiSe2, whereas intercalation of Dy induces paramagnetism till 4% and further intercalation results in antiferromagnetic ordering below 4.5 K. The last chapter includes the summary, future works and bibliography. In summary, the various factors which has been found to affect the extent of intercalation and the effect of intercalation on 2H–NbSe2 and 1T–TiSe2, has been correlated and categorized on the basis of type of intercalant
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
- …
