1,720,986 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
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
Investigating Novel Anatomical Concepts to Improve Surgery of Brainstem Cavernous Malformations
No full textHintergrund: Die Hirnstammchirurgie hat sich in den vergangenen Jahrzehnten mit der Weiterentwicklung mikrochirurgischer Techniken und einem verbesserten anatomischen Verständnis erheblich verbessert. Während die meisten Hirnstammpathologien lange als inoperabel galten, sind Kavernome des Hirnstammes für eine Resektion geeigneter, da sie nicht in das umgebende Parenchym eindringen, in Teilen entfernt werden können, und keine direkte, arterielle Versorgung besitzen. Der wesentliche Erfolgsfaktor bei diesen Eingriffen ist ein ausgezeichnetes Verständnis der intraoperativen Neuroanatomie, der richtige chirurgische Zugangsweg und die Vertrautheit mit „Safe Entry Zones“ (SEZ), die es ermöglichen, schonend in das Parenchym einzudringen, und hierbei signifikante Schäden weitestgehend zu vermeiden. Methoden: Diese kumulative Diplomarbeit beruht auf zwei wissenschaftlichen Publikationen. Beide bedienten sich dem selben Datensatz einer Kohorte aus 662 Patient:innen, die zwischen 1997 und 2020 vom Letztautor und Supervisor (M.T.L.) an Kavernomen des Hirnstammes operiert wurden. In Studie 1 wurden 183 Patient:innen einbezogen, deren Magnetresonanztomographie (MRT)-Datensätze des Kavernoms sowie intraoperatives Bildmaterial zur Kategorisierung anatomischer Dreiecke zur Verfügung standen. In Studie 2 wurden 154 Patient:innen einbezogen, die über MRT-Datensätze, intraoperatives Bildmaterial sowie klinische Evaluierungen verfügten. In Studie 1 wurden anatomische Dreiecke definiert und in operative Arbeitsabläufe integriert. In Studie 2 wurden bereits vordefinierte, aus anatomischen Studien und Fallberichten bekannte SEZ anhand unseres Datensatzes analysiert. Weiters wurde die Zuverlässigkeit der präoperativen MRT bezüglich der korrekten Einschätzung auf Annäherung des Kavernoms an die Hirnstammoberfläche ausgewertet.Ziele: Die Definition von intraoperativen, dreieckigen Navigationshilfen auf der Grundlage sich überschneidender anatomischer Strukturen. Diese sollen bei hochkomplexen Eingriffen in und um den Hirnstamm orientierend behilflich sein. Weiters ist die Kenntnis über sichere Eintrittspforten in den Hirnstamm bei Kavernomen, welche von Parenchym überdeckt werden, von großer Bedeutung. Die wahre Sicherheit dieser SEZ wurde in einer der weltweit größten Kohorten operierter Hirnstammkavernome untersucht.Background: Brainstem surgery has evolved considerably with advancements in microsurgical techniques and better anatomical understanding. While most brainstem pathologies were historically deemed inoperable, cavernous malformations of the brainstem (BSCM) are more amenable to resection, as they don’t invade surrounding parenchyma, can be removed in pieces, and lack direct arterial supply. Important aspects of these procedures are an excellent understanding of intraoperative neuroanatomy, the right surgical approach, and familiarity with safe entry zones (SEZ), which allow neurosurgeons to carefully navigate the brainstem without causing significant harm. Methods: This thesis is based on two published articles. Both utilized the same data set of 662 patients who underwent BSCM surgery by the senior author and thesis supervisor (MTL) in the study period of 1997-2020. In Publication 1, 183 patients were included for whom magnetic resonance imaging (MRI) data of the cavernoma and intraoperative images were available to categorize anatomical triangles. Publication 2 included 154 patients for whom MRI data sets, intraoperative images, and clinical evaluations were available. In Publication 1, anatomical triangles specific to the brainstem were defined and integrated into the surgical workflow. In Publication 2, previously described SEZ known from anatomical studies and case reports were analyzed using our data set. Furthermore, the reliability of assessing BSCM proximity to the brainstem surface based on preoperative MRI was evaluated by comparing the preoperative estimation with intraoperative images as the gold standard.Aim: To define intraoperative, triangular navigational tools based on intersecting anatomical structures. These are intended to provide guidance during highly complex interventions in and around the brainstem. Moreover, knowledge of SEZ into the brain stem is of major importance for cavernomas that are covered by parenchyma. The true safety of these SEZ was examined in one of the world's largest BSCM cohorts.Abweichender Titel laut Übersetzung der Verfasserin/des VerfassersDiplomarbeit Medizinische Universität Wien 202
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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