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
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
Variabilité climatique, dynamique des feux de végétation et perceptions locales dans le bassin versant du N'Zi (Centre de la Côte d'Ivoire)
No full textThe N'Zi River Watershed is a sensitive environment to wildfire risks due to its climate, terrain, ecosystems and socio-economic issues. Unfortunately, knowledge about wildfire regime is under-documented in this area. The present work aimed to evaluate of the pyro-climatic regime and its determinants in the prospect of predictive modelling in relation to local perception in the centre of Côte d'Ivoire. In order to achieve this goal, this study used meteorological, satellite (pyrological and biophysical) and socio-economic (household survey) data that were analysed using descriptive and forecasting statistical approaches. These approaches include multivariate analysis, Spearman correlation, generalized additive models, Kruskal-Wallis test, hierarchical clustering on principal components, cross-correlation, and Box-Jenkins methodology. This thesis is organised into five major axes. The first one, devoted to the study of the climatic variability over the period 1973-2016, shows that the thermometric and hygrometric anomalies have increased respectively by +0.36 °C and +1.24 % and the rainfall anomalies of the watershed slightly decreased by -6.04 mm. The second, based on the characterization of the wildfire regime, revealed that the number of wildfires and burned areas show a downward trend. During the period 2001-2016, 19,156 wildfires were recorded, burning 71,979.7 km² of vegetation. The third part, dealing with the impact of environmental variables on the fire regime, showed that climatic and environmental factors significantly impact wildfire activity. The most important climatic factors of wildfire activity are visibility, relative humidity, precipitation, Angstrom index, dew point, thermal amplitude, vapour-pressure deficit and Lowveld fire danger index. Also, the spatial distribution of wildfires is conditioned by environmental factors. The fourth axis, devoted to predictive modelling of the wildfire regime using Box-Jenkins method, showed the effectiveness of the SARIMA models to simulate and forecast wildfire regime. The validation phase combining Ljung-Box statistics, residue and autocorrelation analysis coupled with comparative analysis of simulated and observed data showed satisfactory results and allowed their use for forecasting over a 48-month horizon. Finally, the fifth part, sharing the local perceptions of the pyro-climatic regime, notes that the local populations perceive climate change and the evolution of wildfires, which tend to be in a deterioration trend and have developed strategies to adapt. These findings are consistent with the analysis of meteorological and satellite data. The findings of this thesis will help decision-makers and managers to make decisions to reduce the vulnerability of local populations to current and future pyro-climatic hazards.Le bassin versant du N’Zi est un milieu sensible aux risques d’incendie en raison de son climat, son relief, ses écosystèmes et ses enjeux socio-économiques. Malheureusement, les connaissances sur le régime des feux sont sous-documentées dans cette zone. Le présent travail vise à évaluer le régime pyroclimatique et ses déterminants dans la perspective d’une modélisation prédictive en relation avec les perceptions des communautés locales dans le centre de la Côte d’Ivoire. Pour atteindre cet objectif, cette étude a utilisé les données météorologiques, satellitaires (pyrologiques et biophysiques) et socio-économiques (enquête ménage) qui ont été analysées à l’aide d’approches de statistiques descriptives et prévisionnelles. Ces approches comprennent l’analyse multivariée, la corrélation de Spearman, les modèles additifs généralisés, le test de Kruskal-Wallis, la classification hiérarchique sur composantes principales, la corrélation croisée et la méthodologie de Box-Jenkins. Cette thèse s'est ordonnée autour de cinq grands axes. Le premier, consacré à l'étude de la variabilité climatique sur la période 1973-2016, montre que les anomalies thermométrique et hygrométrique ont augmenté respectivement de +0,36 °C et +1,24 % et les anomalies pluviométriques de la zone se sont légèrement amplifiés de -6,04 mm. Le deuxième, portant sur la caractérisation du régime des feux, a montré que le nombre de feux et les surfaces brûlées présentent une tendance baissière. Durant la période 2001-2016, 19 156 feux ont été enregistrés, dévastant 71 979,7 km² de végétation. Le troisième, traitant de l’impact des variables environnementales sur le régime des feux, a montré que les facteurs climatiques et environnementaux influencent significativement l’activité des feux. Les facteurs climatiques les plus déterminants de l’activité des feux demeurent la visibilité, l’humidité relative, la précipitation, l’indice d’Angström, le point de rosée, l’amplitude thermique, le déficit de saturation et l’indice de danger de feu de Lowveld. Aussi, les incendies ont une variabilité spatiale conditionnée par les facteurs environnementaux. Le quatrième axe, consacré à la modélisation prédictive du régime des feux à l’aide de la méthode Box-Jenkins, a montré l’efficacité des modèles SARIMA pour la simulation et la prévision du régime des feux. La phase de validation combinant la statistique de Ljung-Box, l’analyse des résidus et des autocorrélations, couplée à l’analyse comparative des données simulées et observées ont montré des résultats satisfaisants et ont permis leur utilisation pour la prévision sur une période de 48 mois. Enfin, le cinquième axe, présentant les perceptions locales du régime pyroclimatique, relève que les populations locales ont une bonne perception de l’évolution du climat et des feux de végétation dont la tendance générale est à la péjoration et ont développé des stratégies pour s’adapter. Ces constats sont en accord avec l’analyse de données météorologiques et satellitaires. Les résultats de cette thèse aideront les décideurs et les gestionnaires à la prise de décisions afin de réduire la vulnérabilité des populations locales face aux aléas pyroclimatiques actuels et futurs
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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