1,721,107 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
Étude des molécules organiques hautement oxygénées (HOMs) en laboratoire et en atmosphère réelle : Projet ACROSS
No full textLes composés organiques volatils (COV) provenant de sources naturelles et anthropogéniques jouent un rôle crucial dans la chimie de la troposphère, produisant des sous-produits tels que les aérosols organiques secondaires (AOS) et l’ozone, qui peuvent avoir des effets néfastes sur la santé humaine et l'écosystème.Cette thèse de doctorat se concentre sur des molécules organiques hautement oxygénées (HOMs), identifiées en phase gazeuse pour la première fois dans l’air ambiant en 2010. Les HOMs se forment rapidement à partir de l’autoxydation des radicaux peroxyles (RO2) formés lors de l’oxydation des COV. En raison de leur faible volatilité, les HOMs contribuent de manière significative à la formation et à la croissance des AOS. La mesure des HOMs dans l’air ambiant a été rendue possible par un NO3¯ ToFCIMS.Les objectifs de cette thèse sont donc d'optimiser l'instrument en laboratoire, de développer un protocole d'étalonnage direct, ainsi que d'étudier les HOMs dans la forêt de Rambouillet lors de la campagne estivale ACROSS 2022. Pour atteindre ces objectifs, des essais en laboratoire ont été menées pour trouver les réglages optimaux de l'instrument. De méthodes d'étalonnage ont été testées avec des acides organiques pour évaluer la sensibilité de l'instrument, comparées à l'étalonnage classique avec H2SO4. Des expériences en chambre de simulation ont été menées impliquant l'oxydation de COV biogéniques et anthropogéniques, pour aider à identifier les produits potentiels des HOMs dans l'air. Enfin, une analyse en composantes principales (ACP) a été appliquée aux mesures de HOMs obtenus par le NO3¯ ToFCIMS déployé pendant ACROSS. Cette analyse a identifié sept composantes principales, chacune caractérisée par des profils temporels uniques, liés aux deux principaux COV biogéniques, l'isoprène et les monoterpènes.Volatile organic compounds (VOCs) from both natural and anthropogenic sources play crucial roles in tropospheric chemistry, producing byproducts such as secondary organic aerosols (SOA) and ozone, which can have adverse impacts on human health and the ecosystem.This PhD thesis focuses on gas-phase products of low volatility, highly oxygenated organic molecules (HOMs), first identified in ambient air in 2010. HOMs rapidly form from the autoxidation of peroxy radicals (RO2) formed from VOC oxidation. Due to their low volatilities, HOMs significantly contribute to SOA formation and growth. Measuring HOMs in ambient air was made possible by a NO3¯ ToFCIMS. The objectives of this thesis are thus to optimize the instrument in the laboratory, develop a direct calibration protocol, and study HOMs in the Rambouillet forest during ACROSS 2022 summer field campaign, under different conditions, especially during the mixing of urban plume and air masses containing forest emissions.To achieve these objectives, controlled laboratory experiments were conducted to find the optimum instrument settings. Multiple calibration methods were tested using organic acids to evaluate the sensitivity of the instrument. These results were compared to conventional H2SO4 calibration methods. Simulation chamber experiments were conducted involving the oxidation of BVOCs and AVOCs to help identify potential HOMs products encountered in the atmosphere. Finally, Principal Component Analysis (PCA) was applied to the HOMs measurements dataset from the NO3¯ ToFCIMS deployed during ACROSS. This analysis identified seven principal components, each characterized by unique temporal profiles, most likely linked to the BVOCs, isoprene and monoterpenes
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
- …
