1,720,956 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
Методичне забезпечення для визначення програми кута тангажу ракети-носія при виведенні космічних апаратів на кругові орбіти
Full text linkMost modern satellite systems use circular orbits to maintain the stability of constellations in outer space. The insertion of spacecraft into such orbits is carried out using launch vehicles, where the choice of the optimal pitch angle is particularly important. This choice enables either an increase in the payload mass delivered to orbit or access to higher orbits with a given payload. An analysis of telemetry data on the pitch angle variation of the Falcon 9 launch vehicle (LV) revealed patterns in the changes of the horizontal and vertical velocity components of the LV, which were not considered in previous models.The purpose of this study is to develop methodological support for creating an optimal pitch angle program based on the initial data of the LV during the insertion of spacecraft into circular orbits. The study addresses the problem of designing a pitch angle program for a launch vehicle with an inertial guidance system intended for placing a spacecraft into a circular orbit. A relationship between the pitch angles in the inertial and orbital coordinate systems is established. To select a model for the variation of the horizontal and vertical velocity components, the velocity change characteristics of the Falcon 9 launch vehicle were used. These dependencies are proposed to be described by parabolic functions.As a result of the conducted research, methodological support was developed to determine the pitch angle program of the LV through vertical and horizontal velocity components using parabolic functions. An analytical relationship was obtained for determining the parameters of the proposed model based on the final motion data of the LV during spacecraft insertion into a circular orbit. The analytical dependencies of the model parameters are consistent with numerical simulation results, confirming the reliability of the obtained findings. The developed methodological support enables the formation of a pitch angle motion program for the LV that is close to optimal, based on the initial LV characteristics and the final data for spacecraft insertion into circular orbits.Більшість сучасних супутникових систем для підтримки стабільності угруповань у космічному просторі використовують кругові орбіти. Виведення космічних апаратів на такі орбіти здійснюється за допомогою ракет-носіїв, де особливо важливим є вибір оптимального кута тангажу. Це дозволяє або збільшити корисне навантаження, що виводиться на орбіту, або забезпечити вихід на більш високі орбіти при заданому навантаженні. Проведений аналіз телеметрії зміни кута тангажу ракети-носія (РН) Falcon 9 виявив закономірності зміни складових горизонтальної і вертикальної швидкості РН, які у попередніх моделях не враховуються. Мета роботи – розробка методичного забезпечення для створення програми оптимального кута тангажу з використанням вихідних даних ракети-носія при виводі космічних апаратів на кругові орбіти. Розглядається задача розробки програми кута тангажу для ракети-носія з інерційною системою наведення, призначеної для виведення космічного апарата на кругову орбіту. Встановлена залежність між кутами тангажу в інерційній і орбітальній системах координат. Для вибору моделі зміни горизонтальної і вертикальної складових швидкості руху ракети-носія були взяті характеристики зміни цих швидкостей на ракеті-носії Falcon 9. Запропоновано описати ці залежності параболічними функціями. В результаті проведеного дослідження створено методичне забезпечення для визначення програми кута тангажу ракети-носія через вертикальну та горизонтальну складові швидкості за допомогою параболічних функцій. Отримана аналітична залежність обрання параметрів запропонованої моделі від кінцевих даних руху ракети-носія при виводі космічного апарата на кругову орбіту. Отримані аналітичні залежності параметрів моделі збігаються з результатами чисельного моделювання, що підтверджує достовірність отриманих результатів. Створено методичне забезпечення дозволяє за початковими харакеристиками РН і кінцевиви даними виводу космічного апарата на кругові орбіти формувати програму руху ракети-носія по куту тангажа близькою до ортимальної
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
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
- …
