1,721,056 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
Internal tides realistic modeling : surface signature, variability and energy budget
No full textLa marée interne est générée lorsque les courants de la marée barotrope interceptent frontalement une pente bathymétrique importante dans un contexte d'océan stratifié, créant un déplacement périodique des couches océaniques. Les anomalies de pression baroclines générées ainsi se propagent sous la forme d'ondes internes sur des distances pouvant atteindre 2000 km, impactent la totalité de la colonne d'eau. La composante stationnaire du signal de surface de la marée interne est observée grâce aux longues séries temporelles de mesures altimétriques disponibles en continu depuis 1993. La composante non-stationnaire de la marée interne, principalement due à la variabilité de la circulation océanique et de la stratification, doit être abordée par des méthodologies différentes afin de décrire la variabilité de la marée interne. Cette dernière thématique a pris un essor particulier avec la préparation de la nouvelle mission large-fauchée SWOT, pour laquelle il devient indispensable de fournir des corrections précises de la marée interne pour pouvoir accéder à la mesure des signaux océaniques de sub-mésoéchelles notamment. La modélisation est un outil puissant permettant d'obtenir le signal complet de la marée interne, autrement difficilement accessible. Cette thèse fait le choix d'aborder la complexité de la marée interne de façon séquentielle, en analysant séparément chaque mécanisme pour en apporter une compréhension détaillée. Elle s'appuie sur des approches de modélisation idéalisées et semi-réalistes produisent un signal simplifié de la marée interne, pour examiner la contribution de la variabilité de la stratification océanique à la variabilité de la marée interne. Le signal de la marée interne est produit en utilisant des approches spectrales de modélisation et ces solutions sont détaillés en utilisant la décomposition en modes verticaux. L'analyse se focalise sur deux zones caractérisées par des dynamiques océaniques différentes : le Golfe de Gascogne et l'Atlantique équatorial-ouest. Tout d'abord, plusieurs conditions caractéristiques de stratification sont définies en utilisant une classification innovante des profils de densité in situ, et permettant de représenter la variabilité de la stratification à partir d'un nombre réduits de profils types. À partir de ces profils, la marée interne est simulée dans un cas idéalisé en utilisant le modèle T-UGOm, puis dans un cas semi-réaliste du Golfe de Gascogne en utilisant le modèle SYMPHONIE. Le cas idéalisé permet de mettre en évidence et de quantifier l'influence de la stratification sur l'amplitude et la longueur d'onde de la marée interne pour chaque mode, et d'étudier précisément les bilans d'énergie associés. Le cas semi-réaliste permet d'étendre cette étude à contexte réaliste, présentant plusieurs sites de génération et d'aborder la complexité des interactions entre ondes internes issues de ces sites. Afin de comparer ces simulations semi-réalistes aux données altimétriques, celles-ci sont analysées selon un découpage saisonnier, cohérent avec le contexte de stratification défini pour les simulations. Ce découpage mettant à l'épreuve la robustesse des méthodes d'analyse harmoniques traditionnellement utilisées pour la marée, cette thèse explore une méthode numérique et ses limitations. Ces travaux permettent de mieux comprendre la marée interne et les mécanismes qui la contrôlent et de mieux cerner la variabilité associée à la stratification seule en proposant de nouvelles approches. Cette compréhension de la marée interne et les simulations réalisées permettent également d'évaluer l'impact de la marée interne sur la remise en suspension profonde des sédiments dans le but d'affiner l'interprétation de mesures géochimiques.The internal tides are generated when the barotropic tidal currents frontally intercept a significant bathymetric slope in a stratified ocean context, creating a periodic displacement of the ocean layers. The baroclinic pressure anomalies generated there propagate as internal waves over distances up to 2000 km, impacting the entire water column. The stationary component of the surface signal of the internal tides are observed thanks to the long time series of altimetry measurements available continuously since 1993. The non-stationary component of the internal tides, mainly due to the variability of ocean circulation and stratification, must be addressed by different methodologies to describe the variability of the internal tides. The internal tides non-stationarity is of special interest with the preparation of the new SWOT swath mission, for which it becomes essential to provide accurate corrections of the internal tides in order to access the measurement of sub-mesoscale ocean signals in particular. Modeling is a powerful tool to obtain the complete internal tides signal, otherwise difficult to access. This thesis chooses to address the complexity of the internal tides in a sequential manner, analyzing each mechanism separately to provide a detailed understanding. It uses idealized and semi-realistic modeling approaches that produce a simplified internal tides signal to examine the contribution of oceanic background stratification variability to internal tides variability. The internal tides signal is produced using spectral modeling approaches and these solutions are detailed using vertical mode decomposition. The analysis focuses on two areas characterized by different ocean dynamics: the Bay of Biscay and the western equatorial Atlantic. First, several characteristic stratification conditions are defined using an innovative classification of density profiles in situ, and allowing to represent the stratification variability from a reduced number of typical profiles. From these profiles, the internal tides are simulated in an idealized case using the T-UGOm model, then in a semi-realistic case of the Bay of Biscay using the SYMPHONIE model. The idealized case allows to highlight and quantify the influence of stratification on the amplitude and wavelength of the internal tides for each mode, and to study precisely the associated energy balances. The semi-realistic case allows to extend this study to a realistic context, presenting several generation sites and to address the complexity of interactions between internal waves from these sites. In order to compare these semi-realistic simulations with altimetric data, these data are analyzed according to a seasonal splitting, consistent with the stratification context defined for the simulations. This splitting tests the robustness of the harmonic analysis methods traditionally used for the tide, so this thesis explores a numerical method and its limitations. This work provides a better understanding of the internal tides and the mechanisms that control them, as well as a better understanding of the variability associated with background stratification alone by proposing new approaches. This understanding of the internal tides and the simulations performed also allow to evaluate the impact of the internal tides on the deep resuspension of sediments in order to refine the interpretation of geochemical measurements
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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