1,721,073 research outputs found
Foreword to the SCED special issue on “Nonlinear Social Dynamics”
No full textSocial Dynamics aims at providing a unifying view on the evolution of social systems, including social conflicts and dilemmas, interactions between populations and the environment, financial markets and the broader macroeconomy, by looking at the interplay between individual behavior at the micro-level and collective behaviors at the macro-level. This view emphasizes the role of boundedly rational behavior based on local information and conditioned by psychological biases, the interactions among heterogeneous agents and the resulting aggregate behaviors which, in turn, provide feedback to individual decisions
Genetic susceptibility to complex traits: moving towards informed analysis of whole-genome screens
No full textSusceptibility to complex traits, by definition, involves aetiological polymorphisms at multiple genetic loci combined with variable contributions by environmental factors. However, the approaches taken to identifying genetic loci implicated in susceptibility to complex traits frequently overlooks the compounding contribution of multiple loci in favour of highlighting a single gene solely responsible for predisposition. It is only in a small minority of cases that this has resulted in clear disease heritability associated with polymorphisms in a single gene. More often, this approach has led to an accumulation of single-gene associations with minor contributions to disease susceptibility. As the genomic era advances and genome-wide screens become higher in resolution and throughput, the need for simultaneous consideration of multiple loci is becoming more important. With special reference to non-Hodgkin’s lymphoma (NHL), this chapter will overview the current progress made in elucidating genetic polymorphisms associated with disease susceptibility. We also present novel data from a high-resolution single nucleotide polymorphism (SNP) microarray screen for susceptibility loci that are involved in NHL. Using an ‘informed approach’, the findings are highlighted within the context of cellular pathways, and provide insight and new ideas for methods of analysis for genome-wide screens for susceptibility
Introduction to the special issue ‘Nonlinear Economic Dynamics’
No full textThis special issue on “Nonlinear Economic Dynamics” contains a selection of papers
presented at the 9th International Conference on Nonlinear Economic Dynamics
(NED2015), that took place on June 25-27, 2015, at Chuo University, Tokyo, Japan. The goal of this special issue is to provide the reader with an overview of new
directions in the global analysis of economic dynamics and to show applications of
concepts from the qualitative theory of nonlinear dynamical systems in the fields
of economics, finance, environment, and strategic interaction in social decisions.
The wide spectrum of applications and the mathematical methods employed in the
dynamic analysis are intended to offer a broad view on the different research streams
that contribute to the blossoming literature on Nonlinear Economic Dynamics
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
JCB902742 Supplemental Material - Supplemental material for Visualizing prolonged hyperperfusion in post-stroke epilepsy using postictal subtraction SPECT
No full textSupplemental material, JCB902742 Supplemental Material for Visualizing prolonged hyperperfusion in post-stroke epilepsy using postictal subtraction SPECT by Kazuki Fukuma, Katsufumi Kajimoto, Tomotaka Tanaka, Shigetoshi Takaya, Katsuya Kobayashi, Akihiro Shimotake, Riki Matsumoto, Akio Ikeda, Kazunori Toyoda and Masafumi Ihara in Journal of Cerebral Blood Flow & Metabolism</p
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
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