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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
ЕКСПЕРИМЕНТАЛЬНЕ ВИЗНАЧЕННЯ КОЕФІЦІЄНТІВ НАПІРНИХ ТРУБОК
Get PDFThe subject of this research is pressure tubes, which serve as sensors for instruments measuring the velocity and flow rate of gases by the pneumometric method. The purpose of the work is to improve the method of determining the coefficients of pressure tubes in order to increase the accuracy of measuring the velocity and flow rate of gases. The article solves the problem of experimental determination of the coefficients of a point and averaging pressure tubes in the velocity range from 2 to 20 m/s. The average coefficients of the pressure tubes and the error caused by the displacement of the orientation of the pressure tube from the flow axis at a speed of 10 m/s were calculated at the average value of the coefficient of the pressure tube for the studied tubes. The studies used methods of analysis and synthesis, analytical and descriptive geometry, probability theory, mathematical statistics, and numerical methods using computer technology. The results of the work are presented in the form of graphical dependencies of the pressure tube coefficient as a function of gas flow rate. The graphical dependence of the flow velocity on the angle of rotation of the axis of the pressure tube relative to the axis of the flow at a speed of 10 m/s at the average value of the coefficient of the pressure tube for the tubes that participated in the experiment is also shown. Conclusions: the method for determining the coefficients of a point and averaging pressure tubes has been improved. It was found that in most of the investigated tubes, the pressure coefficient of the pressure tube is not stable at the velocity range from 2 to 20 m/s. Thus, an additional error arises due to the instability of the pressure tube coefficient, since the coefficient of the pressure tube is proportional to the gas flow rate. The most stable coefficients are Pitot tubes and TNU-8-6. The Pitot tube has an average coefficient of 1.009, the stability of the coefficient of the tube relative to the average value was ±0.8%. The TNU-8-6 tube has an average coefficient of 0.6683, and the tube coefficient stability for the average value is ±1.3%. Also included are recommendations for velocity meter software and gas flowmeters to reduce instrumental error.Предметом исследования в статье является напорные трубки, служащие датчиками для приборов, измеряющих скорость и расход газов пневмометрическим методом. Цель работы – совершенствование метода определения коэффициентов напорных трубок для повышения точности измерения скорости и расхода газов. В статье решена задача экспериментального определения коэффициентов точечных и усредняющих напорных трубок в диапазоне скоростей от 2 до 20 м/с. Рассчитаны средние коэффициенты напорных трубок и погрешность, вызванная смещением ориентации напорной трубки с оси потока на скорости 10 м/с при среднем значении коэффициента напорной трубки. В исследованиях использованы методы анализа и синтеза, аналитической и начертательной геометрии, теории вероятностей, математической статистики и численные методы с использованием компьютерных технологий. Результаты работы представлены в виде графических зависимостей коэффициента напорной трубки как функции скорости газового потока. Также показана графическая зависимость скорости потока от угла поворота оси напорной трубки относительно оси потока на скорости 10 м/с при среднем значении коэффициента напорной трубки для трубок, участвовавших в эксперименте. Выводы: усовершенствован метод для определения коэффициентов как точечных, так и усредняющих напорных трубок. Выявлено, что в большинстве трубок, которые исследовались коэффициент напорной трубки не стабилен, в диапазоне скоростей от 2 до 20 м/с. Таким образом, возникает дополнительная погрешность, вызванная нестабильностью коэффициента напорной трубки, так как коэффициент напорной трубки пропорционален скорости газового потока. Наиболее стабильные коэффициенты имеют трубки Пито и "ТНУ-8-6". Трубка Пито имеет средний коэффициент равный 1,009, стабильность коэффициента трубки относительно среднего значения составила ± 0,8%. Трубка "ТНУ-8-6" имеет средний коэффициент равный 0,6683, стабильность коэффициента трубки относительно среднего значения ± 1,3%. Также даны рекомендации по программному обеспечению измерителей скорости и расходомеров газов для уменьшения инструментальной погрешности.Предметом дослідження в статті є напірні трубки, що служать датчиками для приладів, які вимірюють швидкість та витрату газів пневмометричним методом. Мета роботи - удосконалення методу знаходження коефіцієнтів напірних трубок для підвищення точності вимірювання швидкості та витрати газів. В статті вирішено завдання експериментального визначення коефіцієнтів точкових та усереднюючих напірних трубок в діапазоні швидкостей від 2 до 20 м/с. Розраховані середні коефіцієнти напірних трубок та похибка, що спричинена зміщенням орієнтації напірної трубки з вісі потоку на швидкості 10 м/с при середньому значенні коефіцієнта напірної трубки для трубок які досліджувались. У дослідженнях використані методи аналізу та синтезу, аналітичної та нарисної геометрії, теорії ймовірності, математичної статистики та чисельні методи з використанням комп’ютерних технологій. Результати роботи представлені у вигляді графічних залежностей коефіцієнту напірної трубки як функції швидкості газового потоку. Також показана графічна залежність швидкості потоку від кута повороту вісі напірної трубки відносно вісі потоку на швидкості 10 м/с при середньому значенні коефіцієнта напірної трубки для трубок, які брали участь у експерименті. Висновки: удосконалено метод для визначення коефіцієнтів як точкових так і усереднюючих напірних трубок. Виявлено, що у більшості трубок які досліджувались, коефіцієнт напірної трубки не стабільний в діапазоні швидкостей від 2 до 20 м/с. Таким чином, виникає додаткова похибка, яка спричинена нестабільністю коефіцієнта напірної трубки, так як коефіцієнт напірної трубки пропорційний швидкості газового потоку. Найбільш стабільні коефіцієнти мають трубки Піто та "ТНУ-8-6". Трубка Піто має середній коефіцієнт який дорівнює 1,009, стабільність коефіцієнту трубки відносно середнього значення склала ±0,8%. Трубка "ТНУ-8-6" має середній коефіцієнт який дорівнює 0,6683, стабільність коефіцієнту трубки відносно середнього значення ±1,3%. Також дані рекомендації щодо програмного забезпечення вимірювачів швидкості та витратомірів газів для зменшення інструментальної похибки
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
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