1,720,967 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
Molecualr dynamics study on the molecuar permeability of membrane protein
Get PDF様々な脂質膜環境におけるペプチドおよび膜タンパク質の動的構造の解析，膜内安定性，イオン・分子透過性の評価を分子動力学シミュレーションと自由エネルギー計算により評価した．計算対象には代表的な抗菌性ペプチドであるグラミシジンAを用い，数種類の脂質膜における分子シミュレーションと自由エネルギー評価（膜内安定性）から，膜選択性機構に言及した．ペプチド－脂質膜間の相互作用特性の内訳（水和・静電・疎水性相互作用）を査察・解析・比較することにより，ペプチドの膜選択性に寄与する相互作用の詳細を解析した．We have carried out molecular dynamics simulations to analysis the structure and dynamics of peptide and membrane protein in several lipid bilayer environments and have investigated the ion and molecular permeability through the channel of membrane protein. The thermal stability of membrane protein in the lipid bilayers has also been investigated by free energy calculation.研究課題/領域番号:23750008, 研究期間(年度):2011-2013出典：「分子シミュレーションによる膜タンパク質の分子透過性に関する理論的研究」研究成果報告書 課題番号23750008
（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-23750008/23750008seika/）を加工して作成research repor
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
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
ドッキングと分子シミュレーションの連帯によるタンパク質複合体の高精度構造予測
Get PDF本申請研究はタンパク質－基質複合体の構造予測の精度向上を目的に，ドッキングシミュレーションと分子動力学（MD）シミュレーションを連帯させた新しい計算手法を提案し，これを用い，結合ポケット内における基質の最安定配向の探索手法の開発を行い，計算プログラムの開発とテスト計算を行なう．さらに結合自由エネルギー解析からタンパク質結合サイトの同定と結合構造の同定を行なう．
本研究ではリガンド－タンパク質モデルとしてEstrogen receptor (ER, PDB ID: 1WGR)を用いた。分子ドッキング計算はMD計算によって生成されたレセプターのアンサンブル構造に対して行う。本研究ではレセプターの分子誘導適合をモデルするために、ドッキングにより示された結合ポーズの構造最適化を行う。その後、最適化された結合構造に対しMM-GBSA法を用いてリガンド－レセプターの結合自由エネルギー（スコア値）を評価する。最後に、作成したリガンド分子配座に対して、結晶の基質座標をreferenceにした根平均自乗変位(RMSD)計算を行い、結果の正当性を評価する。本研究では1500個のレセプター構造に対して誘導適合分子ドッキング計算を行い、それらの結合ポーズに対するスコア値とRMSD計算を行った。
ドッキングによって予測された全ての基質配座のスコア値（結合自由エネルギー）をRMSD値に対してプロットした結果、RMSDの値が小さくなるに従って結合エネルギーが低くなる結果が得られ、開発した手法の有効性が示された。最も結合エネルギーが低かった時のリガンド分子の結合構造のRMSD値は ~ 0.9オングストローム程度であり、結晶で解かれた基質配座とほぼ一致する結果を示した。研究課題/領域番号:26102722, 研究期間(年度):2014-04-01 – 2016-03-31出典：研究課題「ドッキングと分子シミュレーションの連帯によるタンパク質複合体の高精度構造予測」課題番号26102722
（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/ja/grant/KAKENHI-PUBLICLY-26102722/）を加工して作成金沢大学理工研究域数物科学系research repor
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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