1,721,150 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
強相関電子系の量子臨界点近傍の磁気励起と量子相分離の解明
Get PDF平成15-16年度科学研究費補助金(基盤研究(B)(2))研究成果報告書 課題番号：15340118 研究代表者：石田憲二 (京都大学大学院理学研究科
<Featuring Article>Report on the 19th LTM Workshop
No full textThe 19th Low-Temperature and Materials Sciences (LTM) Workshop was held on February 20, 2025, at the Clock Tower Centennial Hall, Kyoto University. This marked the long-awaited resumption of the workshop, which had been suspended for four years due to the COVID-19 pandemic. The workshop served as a valuable platform for exchange among students and researchers in the fields of low-temperature and materials sciences. More than 80 participants, including 48 students, took part in the event, which featured three invited lectures and 49 poster presentations
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
<講義ノート>強相関電子系物質の核磁気共鳴 : 非従来型(異方的)超伝導体研究への応用
No full text現在、核磁気共鳴 (nuclear magnetic resonance : NMR) 実験は物性研究の基礎的な測定の一つとなっている。NMRは原子核スピンの共鳴を通して電子スピンの情報を得る実験手法である。ここで重要となるのが、原子核スピン (I) と電子スピン (S) の相互作用 (超微細相互作用 AI・S) であるが、この相互作用は物理の基礎的な内容で支配され、最もシンプルな相互作用である。NMR測定では、電子が原子核位置に作り出す磁場や低エネルギーの "磁気ゆらぎ" を精度よく測定することが出来るため、磁性体や超伝導体の研究には特に有効である。今回の集中ゼミでは、NMRの原理や基礎的な内容を概説した後、磁性体や超伝導体研究への応用について、筆者たちが最近行っている鉄系超伝導体やウラン系強磁性超伝導体の実験結果を紹介する
- …
