1,721,010 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
Research of liver fibrosis associated with liver stem cells
Full text linkラットやマウスなどの動物研究ではDelta-like protein(DLK)-1が肝プロジェニター/ステム細胞に発現していると報告されており,一方で肝線維化に関連することが知られている肝星細胞でのDLK1発現が文献的に報告されている.ヒト肝組織におけるDLK1発現を分子病理学的に解析した.その結果, DLK1はステム細胞関連と推察される腫瘍で発現しており, DLK1が肝癌ステム細胞のマーカーとなりうる分子であることを解明した.The expression of Delta-like protein(DLK)-1 in hepatic progenitor/stem cell has been known in animal experiments, whereas the upregulation of DLK1 in hepatic stellate cells has been reported and implied relation to fibrosis. I examined the expression of DLK1 in human tissue. As results, The expression of DLK1 was demonstrated in liver cancer associated with stem-cell origin. It was suggested that DLK1 could be cancer stem-cell marker of the liver.研究課題/領域番号:22790341, 研究期間(年度):2010-2011出典：研究課題「肝ステム細胞に関連した肝線維化進展機序の分子病理学的研究」課題番号22790341
（KAKEN：科学研究費助成事業データベース（国立情報学研究所））
（https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-22790341/22790341seika/）を加工して作成金沢大学附属病院research repor
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
Research of cellular senescence in hepatocarcinogenesis
Full text link細胞老化は不可逆的な細胞周期の停止として定義されており、前癌病変におけるセネッセンス細胞の出現およびセネッセンスからの回避機序は腫瘍発生初期段階での重要なステップであると考えられている。分子病理学的に検討の結果、ヒト肝組織では肝硬変でセネッセンス関連マーカー発現細胞が出現し、肝ディスプラジア結節では消失していた。肝硬変は肝細胞癌の前癌病変である可能性が示唆された。Cellular senescence is defined as the irreversible arrest of cell cycle. Senescence in premalignant lesion and escape from senescence are thought to be important the early stage of tumoriogenesis. Senescence-associated markers are observed in cirrhotic liver and the markers disappear in dysplastic nodules. The results imply that the cirrhotic state already might to be premalignancy.出典：研究課題「肝細胞癌発生過程における細胞老化の関与とその意義に関する分子病理学的研究」課題番号20790277
（KAKEN：科学研究費助成事業データベース（国立情報学研究所））
（https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-20790277/20790277seika/）を加工して作成金沢大学附属病院research repor
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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