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
Cryopreservation and evalution akkaraman ram semen with cholesterol and 7-dehydrocholesterol
No full textBu araştırmada, ülkemize özgü bir ırk olan Akkaraman koç spermasının dondurulması ve çözdürülmesinde, kolesterol (ch) ve kolesterolün oluşumunda ara ürün olan 7- dehidrokolesterolün (7-dhc) tris sulandırıcısına eklenerek hazırlanmış solüsyonlarla elde edilecek in vitro sonuçların değerlendirilmesi amaçlandı. Araştırmada üç baş koç kullanıldı. Koçlardan haftada iki defa suni vajen yardımıyla sezon içinde sperma alındı. Her bir koçtan alınan nativ ejakülatlar birleştirildi. Birleştirilen ejekülatlar 7 eşit gruba bölündü (split ejekulat); biri kontrol grubu olarak ayrıldı; üçü ch'nin; diğer üçü de 7-dhc'nin farklı konsantrasyonları (1,5, 2,5, 3,5 mg/120x106) ile hazırlanarak tris sulandırıcısı oluşturuldu. Deneydeki sulandırıcı grupları ile dozlanan spermalar + 4 derecede 2 saat alışıma bırakıldı. Alışım süresi sonunda payetler sıvı azot buharında – 120oC 'de 15 dakikada dondurulduktan sonra sıvı azot içinde saklandı. Dondurulduktan 2 ay sonra her deneydeki gruplar için payetler 37oC'deki su banyosunda 35 saniyede çözdürüldü. Çözdürme sonrası spermatozoa motilitesi, anormal spermatazoa oranı sperma analiz cihazında (CASA) değerlendirildi. Plazma membran bütünlüğünün değerlendirilmesi için HOS test, DNA fragmentasyonu için COMET, spermatazoa canlılığı SYBR-14/PI, akrozom bütünlüğü FITC-PNA/PI, mitokondriyel aktivitasyon JC-1/PI; apoptozisin tespiti için Annexin V/PI yöntemi uygulandı. Ayrıca, antioksidan etkisinin değerlendirilmesi için lipit peroksidasyona (LPO) bakıldı.Çözüm sonrası motilite, ölü/canlı, akrozom hasarı, ve HOS test yönünden 7dhc grupları ile ch grupları arasında istatistiksel olarak aralarında bir fark bulunmazken; kontrol gruplarına göre istatistiksel olarak fark bulunmuştur (p0,05). Ayrıca, apoptosis yönünden veriler incelendiğinde canlı ve erken apoptosis hücrelerinde istatistiksel farklılıklar görülürken (p0,05). Sonuç olarak; Ch ve 7-dhc'nin koç spermasını dondurma (soğuk şoku) ve çözdürme prosedürlerine karşı koruduğu, 7-dhc'nin ch yerine koç spermasının sulandırılması ve dondurulmasında kullanılabileceği; ayrıca, ch ve 7-dhc ile elde edilen in vitro sonuçların dölverimlerinin de alınarak sağlamasının yapılması gerektiği sonucuna varıldı.In this research the evaluation of in vitro results of cholesterol (ch) and 7-dehydrocholesterol (7-dhc) which intermediates formation of cholesterol added to tris extenders in freezing-thawing of Akkaraman ram semen, a particular breed in our country, was aimed. In this reseasrch 3 rams were used. Semen was collected from the bucks by artificial vagina, twice a week, during the breeding season. The native ejaculates from each ram were mixed. The mixed ejaculates were divided into seven groups (split ejaculates). One of these was seperated as control, three were diluted with tris which have different concentrations of ch,and the other three were diluted with tris which have different 7-dhc concentrations (1,5, 2,5, 3,5). Extender groups in the experiment were equilibrated in +4°C Straws were frozen in liquid nitrogen vapour (-120 °C) and kept in liquid nitrogen at the end of equilibration period. 2 months after the straws were frozen, they were thawed in 37°C water bath for 35 seconds. Post-thaw spermatological parameters (motility, abnormal spermatozoa) were evaluated with the sperm analyser (CASA). HOS test for evaluating plasma membrane integrity, COMET for detecting DNA fragmentation, SYBR-14PI for detecting live/dead spermatozoa ratio, FITC-PNA/PI for evaluating acrosomal integrity, JC-1 with fluorescent stains for determining mitochondrial activity and Annexin V/PI method with flow cytometry for detecting apoptosis were performed. Besides, antioxidant effect was examined by lipid peroxidation. After thawing, there was no significant difference between 7-dhc and ch groups in terms of motility, live/dead spermatozoa ratio, acrosome defect, mitochondrial activation, and HOS tests; however statistically significant difference was detected when these were compared with control groups (p0,05). As a result, it was concluded that ch and 7-dhc protect ram semen from freezing (cold shock) and thawing procedures; 7-dhc can be used instead of ch for extending and freezing ram semen. In vitro results obtained with ch and 7-dhc should be double-checked with fertility results
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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