1,720,973 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
シラシクロアルカンおよび関連カチオンラジカルの電子スピン共鳴分光法による研究 : 電子構造,分子運動および反応性
Get PDF目次 / p1
第I章 序論 / p1
1.1.緒言 / p1
1.2.基本的有機カチオンラジカルの電子構造 / p3
1.3.本研究の目的と概要 / p7
参考文献 / p10
第II章 マトリックス単離法と電子スピン共鳴法 / p13
2.1.マトリックス単離法 / p13
2.2.電子スピン共鳴(ESR)法 / p18
2.3.ESRスペクトルの超微細構造の解析 / p23
参考文献 / p25
第III章 シラシクロヘキサン(cSiC5)系カチオンラジカル / p27
3.1.緒言 / p27
3.2.実験 / p28
3.3.結果と考察 / p28
3.4.まとめ / p76
参考文献 / p77
第IV章 シラシクロペンタン(cSiC4)系カチオンラジカル / p79
4.1.緒言 / p79
4.2.実験 / p80
4.3.結果と考察 / p80
4.4.まとめ / p96
参考文献 / p97
第V章 シラシクロブタン(cSiC3)系カチオンラジカル / p98
5.1.緒言 / p98
5.2.実験 / p99
5.3.結果と考察 / p100
5.4.まとめ / p128
参考文献 / p129
第VI章 シクロペンタンメチル誘導体カチオンラジカル / p130
6.1.緒言 / p130
6.2.実験 / p131
6.3.結果と考察 / p132
6.4.まとめ / p155
参考文献 / p157
第VII章 総括 / p158
謝辞 / p163
付録 / p164
A.溶質の合成方法 / p164
1.cSiC5系 / p164
2.cSiC4系 / p167
3.cSiC3系 / p168
4.Me-d3-cC5 / p168
参考文献 / p170
B.発表論文リスト / p171
1.本論文関連 / p171
2.その他 / p172広島大学(Hiroshima University)博士(工学)Engineeringdoctora
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
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
Hybridization of Au nanoparticle-loaded TiO2 with BN nanosheets for efficient solar-driven photocatalysis
No full textWe describe the hybridization of Au-loaded TiO<small><sub>2</sub></small>, which has attracted much attention as a visible light-responsive photocatalyst, with h-BN to improve the photocatalytic performance. A hybrid of Au-loaded TiO<small><sub>2</sub></small> and h-BN showed higher photocatalytic activity toward the decomposition of an aqueous organic compound, crystal violet, into CO<small><sub>2</sub></small> under solar light irradiation than Au-loaded TiO<small><sub>2</sub></small>, TiO<small><sub>2</sub></small> supported on h-BN, and TiO<small><sub>2</sub></small>. We propose that the high photocatalytic activity of the hybrid stems from (i) visible light response caused by Au nanoparticles, (ii) reactant-concentration ability possessed by the BN phase, and (iii) improved charge separation at the TiO<small><sub>2</sub></small>/BN interfaces. A wide variety of h-BN morphologies with different properties are available; the hybridization of Au-loaded TiO<small><sub>2</sub></small> or other known photocatalysts with h-BN will be a versatile methodology to enhance their performances
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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