1,720,972 research outputs found
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
The Mobile Phone Use in Mainland China: some Insights from an exploratory study in Beijing
No full textChina is the primary market for the mobile phone (with almost 700 million of these devices) and one of the world's leading countries in ICT production. Inside Mainland China, the capital Beijing and the other coastal industrialized towns have been the first to adopt and appropriate the mobile phone. Until now a certain amount of qualitative research has been devoted to the study of ICTs in China. However, quantitative studies are scarce. Here we present the results of a research based on empirical data specifically focused on mobile communication and carried out in Beijing. A structured questionnaire was personally administered to 487 respondents. This study investigates mobile phone use, its implementation in public spaces, attitudes towards its increasing complexity, opinions on its advantages and disadvantages, and its status in comparison to other technologies of information, communication and mass media in the capital of Mainland China. One main result of this study is that a very positive image of the mobile phone among our respondents was accompanied by only two disadvantages: its being a threat to privacy and its presenting the logistical problem that there is no obvious means to carry it. This latter concern should send a strong message to the fashion industry: the diffusion of the mobile phone has worsened the problem of how to wear these "little essential objects", which up to now still continues to be unresolved. © 2010 Elsevier Ltd. All rights reserved
The Mobile Face of Contemporary China
No full textThe adoption and diffusion of the mobile phone has been exceptionally rapid in Mainland China,
especially in its capital Beijing and the coastal industrialized towns. With almost half a billion mobile
phones, China has rapidly become the biggest market for this technology and one of the world’s leading
nations in the production of information and communication technologies. In the last years also
the amount of qualitative research devoted to ICTs in China is increased, while that of quantitative
studies is still limited. This paper describes a quantitative research study, specifically focused on the
appropriation and domestication of the mobile phone in China. On the basis of questionnaires that
were personally administered to a convenient sample of 487 respondents, the design of this research
attempts to answer the following research question: How the relational sphere in China is reshaped by
the massive use of the mobile phone? And then are there striking differences between the attitudes,
behaviours and practices associated with mobile phone use in China and in the West?
This is a very broad research topic, but in this paper we confine our examination to the social implications
of the mobile phone use on some aspects of the relational sphere. A convenience sample of 487
respondents can hardly provide a basis for generalizations about the Chinese population as a whole.
However, the results of this study will serve to indicate the most important patterns of mobile phone
use, which would be a fruitful subject for future research. Thus the data presented here will provide
the direction for further inquiries into various aspects of mobile phone use in China
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
Fully Turbulent Mean Velocity Profile for Purely Viscous non-Newtonian Fluids
No full textThe characteristic near wall behavior of turbulent flow of purely-viscous non-Newtonian fluids is discussed for both power-law (P.-L.) and Herschel-Bulkley (H.-B.) rheological models. A proper scaling is presented for H.-B. fluids to establish an analogy with power-law fluids with same flow index. To provide reference data for turbulent flow of non-Newtonian fluids, DNS simulations of power-law fluids are conducted in a rectangular channel for a large range of power-law indices ( = 0.5, 0.69, 0.75, 0.9, 1, 1.2). The DNS data show that the mean velocity profile in the viscous and logarithmic layers follow expressions of the form and respectively, where shows a logarithmic dependency on the flow index.Comparison with some experimental data shows the above formulation to be valid for Reynolds numbers (based on shear velocity) as high as 1000
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
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