1,721,061 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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Impact of mergers and acquisition on supply chain performance
No full textThis thesis consists of three essays that examine the impact of mergers and acquisitions on supply chain performance. In the first essay, we analytically study the effects of upstream and downstream mergers on suppliers, retailers and consumers, in an oligopolistic market. We start with a benchmark case where mergers do not generate any synergy. By assuming that firms compete in Bertrand or Cournot fashion, we compare the effects of an upstream merger with a downstream one. We find that upstream (respectively, downstream) mergers always benefit the merging firms, while adversely affecting their dependent downstream (respectively, upstream) supply chain partners; non-dependent suppliers and non-dependent retailers also benefit from such horizontal mergers. Moreover, an upstream merger is more detrimental to consumers than a downstream merger. We then analyze three extended models: (i) In a case where mergers generate synergies through economies of scale at both levels, merging firms still benefit while non-merging competitors suffer a loss in profit. (ii) If the synergy comes as a result of economies of scope, then an upstream merger benefits not only the merging suppliers but also the related downstream retailers; a downstream merger benefits all the firms in the merging industry and upstream unrelated suppliers. (iii) If market demand is uncertain, then each firm's optimal strategy will depend on the value of parameters.The second essay is an empirical investigation of the effects of horizontal mergers and acquisitions on the merging firms' performance. Our primary focus is on inventory-related supply chain metrics, while other operating performance measures are also considered. By using accounting panel data from COMPUSTAT database and the data on horizontal mergers and acquisitions in manufacturing, wholesale and retail sectors from SDC Platinum database, we study how the (one-year) post-merger performance compares to that of the (one-year) pre-merger level for these metrics. The analysis is conducted at two different levels. We first examine changes in absolute performance. Relative performance compared to the industry average is studied next. We then extend our study to test the longer term effects of mergers (two-year post-merger), and also compare the performance of merging firms to similar non-merging competitors. In addition, a multivariate regression analysis is performed to identify the performance factors that significantly affect merging firms' profitability.In the third essay, we again empirically study an issue that complements the second essay. Specifically, we evaluate the merging firms' performance after vertical mergers and acquisitions. We find that after the vertical integration, the acquiring firms' operational performance actually deteriorates in the first year after the transaction. The negative effect lessens over time and it normally takes at least two years for those merged firms to catch up with their matching rivals. Looking at five years performance after vertical mergers, we find that merging firms do not gain significant competitive advantage over the industry average.Cette thèse se compose de trois essais qui examinent l'impact des fusions et acquisitions sur la performance des chaînes d'approvisionnement. Le premier essai est consacré à l'étude des effets d'une fusion en amont et en aval sur les fournisseurs, les détaillants et les consommateurs dans un marché oligopolistique. Nous commençons par un cas de référence où les fusions ne génèrent pas de synergie. Nous comparons les effets d'une fusion en amont à celle en aval dans le cas d'une concurrence à la Bertrand ou à la Cournot. Nous constatons que les fusions en amont (aval) bénéficient toujours les entreprises fusionnantes, tandis qu'elles nuisent à leur partenaires dans la chaîne d'approvisionnement en aval (amont). Ces fusions horizontales profitent aussi aux concurrents. Par ailleurs, les fusions en amont sont plus préjudiciables pour les consommateurs que les fusions en aval. Par la suite, nous analysons trois différents cas: (i) lorsque les fusions génèrent des synergies grâce à des économies d'échelle, aussi bien en amont qu'en aval, ces fusions bénéficient aux entreprises fusionnantes alors que leur concurrents non fusionnants voient leur profits baisser. (ii) Si la synergie est le résultat des économies d'envergure, alors les fusions en amont profitent non seulement aux fournisseurs fusionnants mais aussi aux détaillants dans la chaîne d'approvisionnement. On note aussi que ces fusions nuisent à d'autres fournisseurs alors qu'elles bénéficient à d'autres détaillants. Quant aux fusions en aval, elles bénéficient aux entreprises qui fusionnent et leurs concurrents et aux fournisseurs pour les concurrents, tandis que le bénéfice de leurs fournisseurs diminue. Du point de vue des consommateurs, une fusion en amont est préférable à celle en aval. (iii) Si la demande du marché est incertaine, alors la stratégie optimale de chaque entreprise dépendra de la valeur des paramètres.Le deuxième essai consiste en une étude empirique des effets des fusions et des acquisitions horizontales sur la performance des entreprises fusionnantes. Nous nous intéressons principalement aux mesures relatives à l'inventaire tout en considérant d'autres mesures des performances opérationnelles. En utilisant des données de panel extraites de la base de données Compustat et des données sur les fusions et acquisitions horizontales dans le secteur manufacturier, commerce de gros et de détail disponibles dans la base de données SDC Platinum, nous étudions comment la performance (annuelle) après la fusion se compare à la performance (annuelle) avant la fusion. L'analyse est effectuée à deux niveaux différents. Nous examinons d'abord les changements dans la performance absolue. Par la suite, nous étudions la performance relativement à la moyenne du secteur. Nous étendons ensuite notre étude pour tester les effets à long terme (deux ans après la fusion) des fusions, et aussi comparer la performance des entreprises fusionnantes à celle des concurrents similaires non fusionnants. En plus, une analyse de régression multi-variée est effectuée afin d'identifier les facteurs de performance qui affectent significativement la rentabilité des entreprises fusionnantes. Dans le troisième essai, nous évaluons la performance des entreprises fusionnantes suite à des fusions et acquisitions verticales. Nous constatons qu'avec l'amélioration de l'intégration verticale, la performance opérationnelle de l'acquéreur s'est détériorée dans la première année qui suit la transaction. L'effet négatif diminue au fil du temps et il faut normalement au moins deux ans à ces entreprises fusionnantes pour rattraper leurs rivaux. Concernant la performance dans les cinq ans qui suivent les fusions verticales, nous constatons que les entreprises fusionnantes ne gagnent pas un avantage concurrentiel significatif sur la moyenne du secteur
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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