1,720,957 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
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
Investigation of impact of salep powder on growth of some bifidobacterium species
No full textBu çalışmada, ülkemizde yetiştirilen Kastamonu yöresine ait orkide türlerinden elde edilen salep tozunun bazı Bifidobacterium türlerinin gelişmesi üzerine etkisi, in vitro koşullarda belirlenmiştir. Çalışmada kullanılan Bifidobacterium türleri firma tarafından önerilen bazal gelişme ortamı ve Tripton Pepton Maya Ekstraktı (TPY) kullanılarak aktif hale getirilmiştir. Salep tozunun %2,5'luk solüsyonları hazırlanarak filtre sterilizasyon işlemi uygulanmış ve steril substrat solüsyonları son konsantrasyonu %0,5, %1, %2 ve aktive edilen Bifidobacterium türleri oranı % 2 olacak şekilde TPY sıvı besiyerine ilave edilerek 37°C'de 48 saat inkübasyona bırakılmıştır. Salep tozu içeren bazal ortamda geliştirilen kültürlerden, prebiyotik fermentasyonun 0., 12., 24., 36. ve 48. saatlerinde örnekler alınmıştır. Ayrıca hiç karbonhidrat içermeyen ve %1 oranında glukoz içeren örnekler kontrol numunesi olarak kullanılmıştır. Bu örneklerde pH, hücre yoğunluğu (OD600), prebiyotik aktivite sayısı (PAS), spesifik gelişme oranı (µ), kısa zincirli yağ asitleri (KZYA) miktarı (g/L), laktik asidin toplam KZYA 'ya oranı değerleri belirlenmiştir. Sonuçlar incelendiğinde, salep tozunun Bifidobacterium türlerinin gelişmesini desteklediği, prebiyotik fermentasyon süresince pH değerlerinin düştüğü ve besi ortamındaki hücre yoğunluğu değerlerinin yükseldiği saptanmıştır. En düşük pH ve en yüksek hücre yoğunluğu değerlerinin besi ortamında B. infantis varlığında elde edildiği tespit edilmiştir. Fermentasyon süresince üretilen kısa zincirli yağ asitlerini büyük oranda laktik ve asetik asit ile daha düşük miktarlarda propiyonik ve bütirik asit oluşturmaktadır. Bifidobacterium türleri tarafından üretilen toplam kısa zincirli yağ asidi miktarı incelendiğinde en yüksek değerler B.infantis içeren besi ortamlarında belirlenmiştir (p<0,01). Sonuç olarak, salep tozunun Bifidobacterium türlerinin gelişmesi/aktivitesi üzerine olumlu etki gösterdiği farklı çalışmalarla da desteklenerek prebiyotik potansiyele sahip bileşen olarak kullanılabileceği belirlenmiştir.In this study, the influence of salep powder obtained from Orchideae species grown in Kastamonu region, on the growth of Bifidobacterium species in vitro condition system was investigated. Bifidobacterium species used for the study was activated using basal growth medium and tryptone peptone yeast extract (TPY) according to the procedures defined by the processor. Stock solution of salep powder was prepared at a concentrational (w/v) 2,5 % and filter-sterilized using Millipore filter-sterilization system. Sterile substrate solutions at final concentrations 0,5; 1; 2 and activated Bifidobacterium species (2 %) were added to TPY broth medium and incubated at 37°C for 48 h-1. Samples were taken from cultures grown on basal medium supplemented with salep powder at 0., 12., 24., 36. and 48. hours of prebiotic fermentation. Furthermore, a solution containing no carbonhydrate and a solution with 1 % glucose were used as control samples. For each sample; pH, optic density (OD600), prebiotic activity score (PAS), spesific growth rate (µ), short chain fatty acids (SCFA) (g/L) content and lactic acid to total SCFA value were determined. By the addition of salep powder to TPY broth; growth of Bifidobacterium species were stimulated; the pH values were decreased during prebiotic fermentation whereas cell density values were increased. The lowest value of pH and the highest value of cell density results were obtained from TPY medium at the presence of B. infantis. The predominant short chain fatty acids produced during prebiotic fermentation were lactic and acetic acids followed by propionic and butiric acids. The highest production of short chain fatty acid among Bifidobacterium species were determined at TPY broth containing B. infantis (p< 0,01). On the basis of data obtained salep powder seem to present potential prebiotic activity with stimulated growth of Bifidobacterium species, however, more studies on prebiotic useof salep need to be performed
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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