1,720,975 research outputs found
A statistical study of the dynamics of the voltage membrane in protozoa Euplotes vannus
No full textWe consider the dynamics of the membrane voltage of Euplotes vannus and we suppose that behind this behaviour there is a system that generates Stochastic Resonance phenomena (Benzi R, Sutera A, Vulpiani A. J Phys A 1981;14:L453). We observe the statistical distributions of the resident times in the polarised and depolarised states. The experimental data are compared with the results obtained by an analogue device that simulates a model that gives an Autonomous Stochastic Resonance Process. (C) 2000 Elsevier Science Ltd. All rights reserved
La crisi di redditivià delle banche europee nell’ultimo decennio: cause e possibili rimedi
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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
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
Does FinTech credit affect firms’ cost of capital and capital structure?
Full text linkThis paper explores the effect of FinTech credit on firms’ cost of capital and capital structure. Based on a sample of 3,491 non-financial firms operating in 38 OECD countries during the period 2015–2021, we estimate that the economic effect of FinTech credit is approximately 17% on the cost of debt, and 9.5% on the cost of equity. In terms of cost of capital and capital structure, we observe a smaller yet economically significant reduction by around 5.5% and 3%, respectively. We also find that FinTech credit affects especially firms with stakeholders’ oriented corporate governance practices, which operate in countries with higher bank market power and in more innovative industries. Finally, using a Difference-in-Difference model built around the COVID-19 outbreak, our evidence suggests that these effects are robust and hold also in time of crisis when the cost of capital generally increases due to the greater economic uncertainty
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