1,721,005 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
Study on the motile mechanisms for processive myosins with short legs using high-speed atomic force microscopy
Full text linkミオシン6とミオシン10は、アクチンフィラメント上を移動する2つの脚をもつモータータンパク質である。興味深いことに、脚の長さが短いにもかかわらず、大きな歩幅で運動することが分かっている。しかしながら、それらが運動する最中の構造的な情報は一切得られていないため、その運動メカニズムは未解明であった。本研究では、高速原子間力顕微鏡を用いて、運動中のミオシン6とミオシン10の構造形態を高い時間・時間分解能で直接観察することを行った。その結果、各ミオシンが大きな歩幅と小さな歩幅をとりながら、ふらふらと一方向に進む運動を直接観察することに成功し、各ミオシンの運動メカニズムの理解を深めることができた。Myosin 6 and 10 are two-headed molecular motors that move along actin filaments. Intriguingly, it is known that these motors move with a large stride than that expended from their leg length. However, their functional mechanisms have not been elucidated yet, due to the lack of structural evidence. Here, we applied high-speed atomic force microscopy to directly observe their structural dynamics at high spatiotemporal resolution. Net wiggly processive movements with large and small strides performed by these myosins were directly visualized. The large stride was made by a lever-arm extension in their tail domain. The direct evidence obtained here should lead to better understanding the functional mechanism of these myosins.研究課題/領域番号:24770149, 研究期間(年度):2012-04-01 - 2015-03-31出典：「高速原子間力顕微鏡による脚の短いプロセッシブミオシンの運動メカニズムの解明」研究成果報告書 課題番号24770149
（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-24770149/24770149seika/)を加工して作成金沢大学新学術創成研究機構, ナノ生命科学研究所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
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
Study of motile mechanism of myosin VI using high-speed atomic force microscopy
Full text linkミオシン6は、ミオシンスーパーファミリーの中で唯一アクチンフィラメントのマイナス端に向かって移動するミオシンで、脚が短いにも関わらず大きな歩幅で運動することが分かっている。しかしながら、それらが運動する最中の構造的な情報は一切得られていないため、その運動メカニズムは未解明であった。そこで、本研究では、高速原子間力顕微鏡を用いて、運動中のミオシン6の構造形態変化を直接観察した。その結果、その運動メカニズムの解明につながる構造的証拠を得ることに成功した。Myosin 6 is the only myosin among myosin superfamily that moves to the minus end of actin filament. Interestingly, it is known that myosin 6 walks with larger stride than that expected from their foot length. However, their functional mechanism has not been elucidated yet, due to the lack of structural evidence. Here, we performed high-speed atomic force microscopy to directly observe their structural dynamics of myosin 6 at work. Then, the structural evidence was successively obtained for the first time, leading to better understanding the functional mechanism of myosin 6.出典：研究課題「高速原子間力顕微鏡によるミオシン6の運動メカニズムの解明」課題番号22870011
（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-22870011/22870011seika/）を加工して作成金沢大学新学術創成研究機構ナノ生命科学研究所research repor
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
- …
