1,720,960 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
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
Stratégies catalytiques alternatives pour la valorisation directe du CO2 des gaz d’échappement
Get PDFAbstract: The increase on the world’s population and energy demand has led to significant climate change as a result of the large emissions of greenhouse gases (GHG) from an energy matrix heavily relied on fossil-based fuels. In 2021, carbon dioxide (CO2) concentration in the atmosphere reached 414.7 ppm, with up to 90% of anthropogenic CO2 coming from the burning of fossil fuels. In the context of the Paris Agreement 2015, Canada has committed to a GHG emissions reduction target of 40–45% below 2005 levels by 2030, but this ambitious target will only be achieved through the development of novel alternative technologies that allow the transition to a low-carbon energy matrix. Flue gases (FG) are gaseous products of combustion carrying significant amounts of CO2 and other GHG emissions, such as nitrogen (NOx) and sulfur (SO2) oxides. The valorization of FG is an interesting pathway towards GHG reduction, since the recovered CO2 can be used to produce low-carbon energy vectors of industrial interest, avoiding further fossil exploitation. However, the valorization of FG still requires several FG cleaning and CO2 purification steps, which increase the costs associated with the process. The present project proposed investigating the feasibility of alternative catalytic strategies for the direct valorization of real FG streams as an option to traditional carbon capture and utilization (CCU) technologies that require CO2 purification. In the first part of this work, the feasibility of direct FG conversion was investigated with classical alumina-supported catalysts to produce syngas, an industrially relevant building block. The operating conditions were optimized to validate the process. In the second part of this work, hydroxyapatite (HAP) was proposed as an alternative catalyst support for CO2 methanation process, as an alternative for classical metal oxides. The process operating conditions were optimized, and the performance of the HAP-supported catalyst was validated at semi-pilot scale. Finally, in the third part of this work, the optimized HAP-supported nickel catalyst was pelletized by extrusion process and validated for direct FG methanation on lab- and semi-pilot scale. Overall, the results presented in this work can pave the way for the development of an efficient process for direct upgrading flue gas streams into industrially relevant low-carbon energy vectors.L’augmentation de la population mondiale et de la demande énergétique a entraîné d’importants changements climatiques en raison des importantes émissions de gaz à effet de serre (GES) provenant d’une matrice énergétique basée fortement sur des combustibles fossiles. En 2021, la concentration de dioxyde de carbone (CO2) dans l’atmosphère a atteint 414,7 ppm, avec jusqu’à 90% du CO2 anthropique provenant de la combustion de combustibles fossiles. Dans le contexte de l’Accord de Paris de 2015, le Canada s’est engagé à atteindre un objectif de réduction des émissions de GES de 40 à 45 % par rapport aux niveaux de 2005 d’ici 2030. Par contre, cet objectif ambitieux ne sera atteint que par le développement de nouvelles technologies alternatives qui permettent de sécuriser la transition vers une matrice énergétique à faibles émissions de carbone. Les gaz d’échappement (FG) sont des produits gazeux de combustion transportant des quantités importantes de CO2 et d’autres GES, comme les oxydes d’azote (NOx) et de soufre (SO2). La valorisation du FG est une voie intéressante vers la réduction des émissions de GES, car le CO2 récupéré peut être utilisé pour produire des vecteurs énergétiques à faible intensité en carbone d’intérêt industriel, évitant ainsi une exploitation fossile ultérieure. Cependant, la valorisation du FG nécessite encore plusieurs étapes de nettoyage du FG et de purification du CO2, ce qui augmente les coûts associés au processus. Le présent projet propose d’étudier la faisabilité de stratégies catalytiques alternatives pour la valorisation directe des FG en tant qu’option aux technologies traditionnelles de captage et d’utilisation du carbone (CCU) qui nécessitent une purification du CO2. Dans la première partie de ce travail, la faisabilité d’une conversion directe en FG a été étudiée avec des catalyseurs classiques soutenus par l’alumine pour produire du gaz de synthèse, un élément constitutif pertinent sur le plan industriel. Les conditions de fonctionnement du procédé ont été optimisées pour valider le procédé. Dans la deuxième partie de ces travaux, l’hydroxyapatite (HAP) a été proposée comme catalyseur alternatif pour le procédé de méthanisation du CO2, comme alternative aux oxydes métalliques classiques. Les conditions de fonctionnement du procédé ont été optimisées et les performances du catalyseur à base d’HAP ont été validées à l’échelle semi-pilote. Enfin, dans la troisième partie de ces travaux, le catalyseur optimisé d’HAP dopé avec du nickel a été granulé par procédé d’extrusion et validé pour la méthanisation directe de FG à l’échelle du laboratoire et semi-pilote. Dans l’ensemble, les résultats présentés dans ce travail peuvent ouvrir la voie au développement d’un procédé efficace pour la valorisation directe des gaz d’échappement en vecteurs énergétiques à faible intensité en carbone pertinents sur le plan industriel
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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