1,720,953 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
DEVELOPMENT OF A PNEUMATIC SYSTEM FOR SEPARATING STAGES OF A SPACE LAUNCH VEHICLE
Get PDFАнотація. Розглядається пневматична система розділення ступенів, яка забезпечує мінімальні кутові швидкості і яка виключає забруднення поверхонь космічного апарата. На прикладі системи розділення ступенів ракет-носія «Циклон-4» розроблена методика визначення кінематичних параметрів, циклограма подачі стиснутого газу з джерела в пневмоштовхачі, виконуючі органи створення відносної швидкості та їх кріплення до міжступінного відсіку. Пневматична система розділення ступенів представляє собою систему, яка складається із джерела газу, виконуючих органів створення відносної швидкості, магістралей, які сполучають джерело газу і виконуючі органи,клапанів, для ампулізації джерела газу.Основними виконуючими органами створення відносної швидкості пневматичної системи розділення ступенів є пневмоштовхач. Конструктивнопневмоштовхач представляє собою силовий пневмоциліндр, поршень якого переміщується в корпусі при підводі управляючого тиску в його управляючу порожнину, створюючи потрібне зусилля і виконуючі необхідну роботу для забезпечення кінематичних параметрів системи розділення ступенів.Методика визначення кінематичних параметрів включає в себе диференційні рівняння, які описують рух абсолютно твердих тіл в просторі і диференційних рівнянь, які описують процес перетікання газу з газового балону в пневмоштовхачз визначенням термодинамічних параметрів стану газів. Аналогічні методики були застосовані для визначення кінематичних параметрів системи розділення стулок обтічника і отримано експериментальне підтвердження правильності застосованих розрахункових методик. Для рішення системи звичайних нелінійних диференційних рівнянь були застосовані спеціальні численні методи інтегрування. Результати моделювання системи відділення ступені і розгінного блоку космічного апарату показують, що забезпечені потрібна відносна швидкість розділення і безударність процесу з урахуванням максимально можливого розкиду тиску в пнеімоштовхачах, сил супротиву в електроз’єднувачах і направляючих штирях. Результати досліджень дають цінні данні для проектування систем розділення ступеніві розгінних блоків космічних апаратів ракет-носіїв і показують можливість застосування пневматичної системи розділення ступенів. Матеріали статті будуть корисні науковим і інженерно-технічним співробітникам, які працюють над створенням конструкції систем розділення і займаються динамікою перехідних процесів розділення ступенів ракет-носіїв космічного призначення.Annotation. Examine pneumatic system of separation stage, which ensure minimum angle speed and exclude pollution surface of space vehicle. On examplesystem of separation «Cyclone-4» launch vehicleexaminemethod determination kinematic parameters, command timeline, pneumatic system feed of compressed gas from tank to pneumatic pushers, executive body relative speed and them fastening to module. The pneumatic system of separation stage consist of the source gas, the executive body, pipes, which tangent the source gas and the executive bodyand valves for sealing the source gas. Basic the executive body creating relative speed pneumatic system of separation stage is pneumatic pusher. The pneumatic pusher is power pneumatic cylinder, which plunger move out of body, when admission into the body control pressure and create necessary force and do necessary work for create necessarykinematic parameters of system separation stage. The method definition kinematic parameters include differentialequation, which describe motion two rigid bodyin the plane and differentialequation, which describe process flow gas from tank to pneumatic pushers with definitiontermodynamic parameter of conditiongas. Similar method wasapplied for definition kinematic parameter of system separation leaf fairing and got experiment confirmation validity application method of calculating. For solution system non-linear ordinary differential equation was applied special numerical method integration. The result modeling system separation stage and stage block of spacecraft show, that provide need relative speed separation and unstressed process with record maximal possible dispersion pressure in pneumatic pusher, forces strength in connector and the guide studding.The result research givedvaluable data for construction system separation stage and blocks of spacecraftlaunch vehicle and showed possible apply pneumatic system for separation stages. The material article were helpful scientific and engineers technician worker, which work above create construction of system separation stages and keep dynamic transition process system separation stages launch vehicle space setting
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
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