1,721,192 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
Gene expression and function genomic library screening of copepod Tigriopus japonicus
No full text橈足類也許是地球上數量最多的多細胞生物，超過11,500個種類比陸地上的昆蟲數量還多。此成功演化的原因主要歸功於其高生殖率及快速的胚胎發生。而海洋橈足類也成為自然界孕育魚苗最佳的餌料生物。橈足類因為體型小富含高度長鏈不飽和脂肪酸，有潛力發展成為魚苗初期發育最佳的餌料生物。本研究對象日本虎斑猛水蚤對環境適應力強，且為雜食性，容易培養，因此有潛力發展為大量培養的魚苗生物餌料種類之一。關於日本虎斑猛水蚤生長發育及營養分析的研究不少，但基因層次上的相關研究並不多。本研究利用餵食日本虎斑猛水蚤不同的食物，並探討其生長情形與體內脂肪酸組成，再構築日本虎斑猛水蚤之cDNA基因庫，來探討其營養代謝合成相關基因和發育生長相關基因群之表現。本實驗以不同食物來培養日本虎斑猛水蚤14天，並觀察族群變化。於第14天收集蟲體分析脂肪酸組成，發現餵食周氏扁藻的蟲體，密度為每公升302.5隻，DHA和EPA分別佔總脂肪酸的1.56%與1.58%。餵食發酵液的蟲體，密度為每公升390隻，DHA和EPA分別佔總脂肪酸的5.53%與8.27%。餵食酵母的蟲體，密度為每公升392.5隻，DHA和EPA分別佔總脂肪酸的7.57%與11.57%。餵食奶粉的蟲體，密度為每公升1,217.5隻，DHA和EPA分別佔總脂肪酸4.24%與6.12%。以產量和食物取得便利性而言，奶粉為培養日本虎斑猛水蚤之最佳食物來源。本實驗利用cDNA 微陣列晶片經交叉比對後篩選出142個差異性表現基因，經定序比對分析，其中86個比對到相似序列基因，11個為功能不明的基因序列，扣除重複後共得72個促進表現基因。這些促進表現基因包括轉譯因子、呼吸鏈、結構、信息傳遞、發育、代謝、生長因子、運輸蛋白和調控蛋白等。此外，我們也選殖出Delta-9-desaturase基因，此將有助於日本虎斑猛水蚤在脂質代謝方面的相關研究。Copepods may be the most abundant multi-cellular organism in the world, which contains more than 11,500 species that more than that of insects. Its evolutionary success contributes to its high reproduction rate and rapid embryonic development, and the oceanic copepods naturally become the best living feed for fish fry in the nature. Copepods has the potential to become the best living feed for fish fry early development because of its small size and rich in long chain unsaturated fatty acid. The Tigriopus japonicus in this study has great adaptability to environment, polyphagia and easy to culture, so has the potential to develop as one of the fish fry living feed species that can be mass produced. Although there are quite a few studies on growth development and nutritional analysis of Tigriopus japonicus, however, the study on genetic level is still quite limited. In this study, we fed Tigriopus japonicus with different food to investigate the growth situation and fatty acid composition. The cDNA library of Tigriopus japonicus was further constructed to discuss the expression of nutritional metabolism related genes and development related genes. Tigriopus japonicus were fed with different food for 14 days and the population changes were observed. The fatty acid composition analysis on the 14th day showed that the density of Tigriopus japonicus fed with Tetraselmis chui was 302.5/L, and the DHA and EPA was 1.56% and 1.58% of total fatty acid respectively. The density of Tigriopus japonicus fed with fermented liquid was 390/L, and the DHA and EPA was 5.53% and 8.27% of total fatty acid respectively. The density of Tigriopus japonicus fed with yeast was 392.5/L, and the DHA and EPA was 7.57% and 11.57% of total fatty acid respectively. The density of Tigriopus japonicus fed with milk powder was 1217.5/L, and the DHA and EPA was 4.24% and 6.12% of total fatty acid respectively. From the production amount and convenience point of view, milk powder is the best food source of Tigriopus japonicus culture. In this study, we screened and obtained 142 up-regulated genes from cDNA library. After blasting, 86 of which can find the homologous genes, 11 of which are unknown function. The up-regulated genes include transcription factors, respiratory chain, structure, signal transduction, development, metabolism, growth factors, transportation proteins and regulatory proteins. Besides, we also subcloned Delta-9-desaturasae gene, which might be helpful on the research of Tigriopus japonicus on lipid metabolism.目 錄文摘要 Ⅰ文摘要 Ⅱ錄 Ⅳ目次 Ⅶ目次 Ⅷ、前言 1.1 台灣石斑魚簡介與養殖現況 1.2 石斑魚魚苗之餌料生物 2.3 橈足類之生活史(以猛水蚤目為例) 4.4 不同食物對橈足類營養品質和族群生長的影響 5.5 橈足類在養殖業上的運用 5.6 日本虎斑猛水蚤(Tigriopus japonicus)之簡介 6.7 周氏扁藻 (Tetraselmis chui)之簡介 7.8 實驗目的 8、材料與方法 9.1 生物性材料 9.1.1 日本虎斑猛水蚤 9.1.2 周氏扁藻 9.2 不同食物條件對日本虎斑猛水蚤族群生長的影響 9.2.1 藥品 9.2.2 周氏扁藻的培養 10.2.3 日本虎斑猛水蚤培養 11.3 不同食物與日本虎斑猛水蚤的脂肪酸分析 12.3.1 藥品 12.3.2 粗脂肪萃取 13.3.3 皂化 13.3.4 甲基酯化 14.3.5 氣相層析 (Gas Chromatograph，GC) 14.4 日本虎斑猛水蚤cDNA基因庫之構築 15.4.1 藥品 15.4.2 日本虎斑猛水蚤total RNA之萃取 18.4.3 日本虎斑猛水蚤 mRNA之純化與RNA電泳 18.4.4 第一股cDNA合成 19.4.5 第二股cDNA合成 19.4.6 Complementary DNA兩端的修飾 20.4.7 第一股及第二股cDNA分析 20.4.8 EcoRⅠ adaptor的連接及磷酸化作用 20.4.9 XhoⅠ切割作用 21.4.10 分離不同大小之cDNA片段 21.4.11 Complementary DNA嵌入片段與載體之接合反應 21.4.12 λ噬菌體之包裝反應 22.4.13 日本虎斑猛水蚤cDNA基因庫效價之測定 22.4.14 Mass excision 22.5 Complementary DNA 微陣列之雜合反應 23.5.1 藥品 23.5.2 日本虎斑猛水蚤樣品探針之製備 24.5.3 Total RNA 之萃取、純化與RNA電泳 24.5.4 基因微陣列晶片之前準備 25.5.5 Complementary DNA合成與標定 25.5.6 Complementary DNA微陣列晶片之雜合反應 27.5.7 候選基因定序及序列比對分析 27、結果 28.1 不同食物來源對日本虎斑猛水蚤族群生長的影響 28.2 不同食物與虎斑猛水蚤的脂肪酸分析 28.2.1 不同食物之脂肪酸組成分析 28.2.2 以不同食物餵養的日本虎斑猛水蚤之脂肪酸組成分析 29.3 日本虎斑猛水蚤λ 噬菌體cDNA 基因庫之建立與力價之測定 29.4 Complementary DNA微陣列之雜合反應 30.5 Complementary DNA微陣列數據之分析 30.6 差異表現 cDNA之序列分析 31、討論 32、參考文獻 36目次一、 以不同食物餵食日本虎斑猛水蚤之生長曲線 42二、 不同食物脂肪酸組成的氣相層析 43三、 以不同食物餵食的日本虎斑猛水蚤脂肪酸組成的氣相層析 44四、 日本虎斑猛水蚤mRNA之萃取 45五、 雙股cDNA合成 46六、 利用CL-2B管柱層析分離雙股cDNA 47七、 不同食物對應於發酵液培養日本虎斑猛水蚤之基因表現微陣列雜合 48八、 不同食物對應於酵母培養日本虎斑猛水蚤之基因表現微陣列雜合 49九、 不同食物對應於奶粉培養日本虎斑猛水蚤之基因表現微陣列雜合 50十、 不同食物對應於發酵液培養日本虎斑猛水蚤基因表現大於1.5倍之偉恩圖 51十一、 不同食物對應於酵母培養日本虎斑猛水蚤基因表現大於1.5倍之偉恩圖 52十二、 不同食物對應於奶粉培養日本虎斑猛水蚤基因表現大於1.5倍之偉恩圖 53目次一、 不同食物之脂肪酸組成分析 54二、 以不同食物培養的日本虎斑猛水蚤之脂肪酸組成分析 55三、 虎斑猛水蚤cDNA基因庫力價之測定 56四、 餵食不同食物之日本虎斑猛水蚤的促進表現基因 5
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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