1,721,081 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
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
Vorhersage von MicroRNAs in Pflanzen
No full textIn allen Lebewesen wird der in Genen kodierte Bauplan von der Zellmaschinerie mit Hilfe von RNA in Proteine übersetzt. Erst Anfang dieses Jahrtausends wurde entdeckt, dass bei diesem Prozess in höheren Lebewesen wie Tieren und Pflanzen einer bislang unbekannten Klasse von RNA Molekülen eine entscheidende regulatorische Rolle zukommt. Gegenstand dieser Arbeit sind die sogenannten microRNA Gene, welche keine Proteine kodieren, sondern bereits auf RNA Ebene ihre Wirkung auf andere Transkripte entfalten. In diesem Rahmen wurden mehrere bioinformatischeWerkzeuge konzipiert. Eines davon erlaubt es, neue microRNA Gene durch den Vergleich zweier Pflanzengenome aufzuspüren. Dies wurde auf die Genome von Arabidopsis thaliana und Pappel, sowie von Reis und Hirse angewandt. Die resultierenden Gen-Kandidaten wurden dann in enger Zusammenarbeit von molekularbiologischen Kooperationspartnern in vitro und in vivo näher untersucht. Eine weitere, universell einsetzbare Software ermöglicht dem Benutzer die Visualisierung und interaktive Erforschung zweier beliebiger RNA Sequenzmengen und ist insbesondere nützlich bei der Anwendung auf microRNAs. Die Idee für eine andere Anwendung entstand durch die Verfügbarkeit der Ergebnisse einer neuen Sequenziertechnologie für die Signaturen kleiner RNAs. Diese dienten als Informationsquelle für eine Methode, um auf deren Basis neue microRNAs in Arabidopsis vorherzusagen, die dann auch erfolgreich von Kooperationspartnern biologisch verifiziert werden konnten. Ferner wurde ein simples Programm entwickelt, welches ausgehend von einer bekannten microRNA dessen Homologe in nahezu beliebigen Sequenzdaten mit hoher Sensitivität und Spezifizität detektieren kann. Dieses wurde genutzt, um ausgehend von den 286 beim Sanger Institut registrierten pflanzlichen microRNAs weitere 200 Homologe in verschiedenen Pflanzen zu identifizieren. Diese vergrösserte Datenbasis diente schliesslich als Ausgangsbasis für eine Überblicksarbeit über Konservierung und Divergenz von microRNAs in Pflanzen.The blueprint stored in the genes of each living creature is translated into proteins via RNA. But it was not until the beginning of this millennium that a class of small RNAs was discovered that performs crucial regulatory roles during this process in higher organisms such as animals and plants. The focus of this thesis are the so–called “microRNAs”--gene products which do not code for proteins but instead have a regulatory impact on other transcripts at the RNA level. In this context, several computational biology tools were designed and implemented. One of them permits the identification of new microRNA genes by comparing two plant genomes. It was applied to the genomes of Arabidopsis and poplar, as well as to rice and sorghum. The resulting gene candidates were then analyzed experimentally by a collaboration of molecular biologists. Another, universally applicable software allows the user to visualize and interactively explore two arbitrary RNA sequence sets and is especially useful in the context of microRNAs. The idea for a further application was spawned by the availability of the small RNA signatures resulting from a new sequencing technology. These signatures served as the basis on which we could predict new microRNAs--some of which could afterwards be validated by experimental collaboration. In addition, we developed a simple program that can--given a known microRNA--identify its homologs in almost arbitrary sequence data with high sensitivity and specificity. When this tool was supplied with the 286 microRNAs registered at the Sanger institute, an additional 200 homologs could be found across different plants. Eventually, this enlarged data set served as the basis for a survey article on conservation and divergence of microRNAs in plants
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