1,720,996 research outputs found
Are crashworthiness and fuel economy necessarily conflicting outcomes
No full textIt has been demonstrated that larger, heavier cars generally provide more protection for their occupants, although they maybe more likely to injure other road users. Smaller, lighter cars generally have better fuel economy. Some government agencies have programs that encourage consumers to purchase safer cars as measured by crashworthiness ratings; while other government agencies encourage consumers to purchase cars with good fuel economy. Consumers may find these messages contradictory. This analysis compares the Used Car Ratings calculated by Monash University Accident Research Centre with the official fuel consumption figures published by the Australian Greenhouse Office. It demonstrates that while there is a general negative correlation between crashworthiness rating and fuel economy, there is considerable scatter about the line of best fit. Particular makes and models of cars were identified as performing well on both crashworthiness and fuel economy while other makes and models of cars were shown to perform relatively poorly. The limitations of the study relate to the use of official fuel economy figures rather than in-use values and the relative variability of the published fuel economy figures compared to crashworthiness ratings. Nevertheless, further development of this type of approach of identifying cars that perform well on several dimensions may be useful
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
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
Motorcycle crash involvement as a function of self assessed rider style and rider attitudes
No full textApproximately 1,500 riders (aged 25 and over) answered a questionnaire that asked about their riding patterns, behaviours, attitudes and crashes. Approximately 30% of the sample had been involved in a crash within the previous five years. As a subset of the data collected, the results reported here relate to 16 survey questions scored using Likert scales that respondents used to describe their riding style and assess their own skills compared to their peers, and their perceived likelihood of being involved in a crash in the future. Differences between those who had crashed previously and those who had not crashed were evident, indicating that the former are more over-confident and "worse" riders. Logistic regression revealed that five of the 16 variables usefully predicted crash involvement. The findings support the use of "insight"-type sessions as part of rider training and/or testing
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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