1,720,965 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
Extensions of the scalar sector of the Standard Model
No full textTese de mestrado, Física (Física Nuclear e Partículas) Universidade de Lisboa, Faculdade de Ciências, 2020The matter-antimatter asymmetry observed in the Universe cannot be explained by the amount of violation of Charge Conjugation and Parity (CP) in the Standard Model (SM). This shortcoming of the SM is one of the main motivations that led to the proposal of several extensions of the SM with new sources of CP-violation, a necessary requirement to explain the baryon asymmetry, according to the Sakharov conditions for baryogenesis. In this thesis, we will look at some of the main features of a particular type of models where the SM Higgs potential is changed by the addition of a second scalar doublet to the SM field content. These models are known as Two-Higgs-Doublet Models (2HDMs). They provide a very rich phenomenology at the Large Hadron Collider (LHC) and future colliders because of the introduction of new scalar states, and may answer many unsolved problems that are not addressed in the SM, such as the insufficiency of CP-violation and the existence of Dark Matter (DM). The CP-nature of the discovered Higgs is still an open issue. While it has been established by the ATLAS (A Toroidal LHC Apparatus) and CMS (Compact Muon Solenoid) collaborations that the discovered scalar cannot be a pure pseudoscalar, a mixed state with a large CP-odd component is still possible. This would be an indication of CP-violation in the scalar sector. The search for new sources of CP-violation and Beyond the Standard Model (BSM) physics is one of the main goals of the LHC. This can be achieved by a precise measurement of the Yukawa couplings since the CP-nature of the Higgs can be directly probed in its production alongside fermions. In this dissertation, we explore the sensitivity of CP-discrimination in the Higgs (h) couplings to bottom (b) and top quarks (t), for b ¯bh, bh and in dilepton final states of tth¯ events (with h → b ¯b) produced at the LHC and generated with MadGraph5 aMC@NLO. These Higgs bosons are generic, i.e., they may not correspond to the discovered one with a mass of 125 GeV, and are either pure CP-even or pure CP-odd. Several observables introduced in previous works are evaluated for a varying scalar boson mass, mh, in order to probe the CP-sensitivity in the different processes. We show that for b ¯bh and bh final states, CP-discrimination is not possible for the observables considered, even for very light Higgs masses of 10 GeV. For tth¯ , we found that distinguishing different CP states becomes increasingly difficult for larger masses, and seemingly impossible for masses above 450 GeV, at parton level. For the tops, we additionally apply an algorithm to reconstruct, for the first time, tth¯ events with a Higgs mass different from 125 GeV. Confidence Levels (CLs) for exclusion are computed for this process, as a function of the LHC luminosity, for different scenarios. We found that exclusion scenarios at the LHC require more luminosity for a fixed CL as we increase the scalar boson mass. CP-odd exclusion also requires more luminosity, relative to CP-even exclusion, for mh < 160 GeV. With the current LHC luminosity of 150 fb−1 , exclusion of a pure CP-even Higgs with a mass below 80 GeV, assuming SM-like couplings, is already possible. Also, the information that we may learn in these exclusion scenarios still leaves a large allowed parameter space for the Complex Two-Higgs-Doublet Model (C2HDM)
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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