1,720,985 research outputs found
Effect of Text Messaging Bans on Fatal Accidents
No full textDo text messaging bans make roads safer? To determine the answer to this question, a multivariate regression model was developed to determine how fatal accidents by state were affected by the following variables: texting bans, cell phone bans, primary versus secondary enforcement, time since bans were passed, vehicle miles traveled per state, gas and beer tax per state, percentage of population under 25 years of age, population density, and unemployment rate. The results indicate that text messaging bans do decrease fatal accidents and also decrease the danger of driving as the vehicle miles driven increases
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
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
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
The Effect of Casinos on Local Labor Markets: A County Level Analysis
No full textThe economic outcomes surrounding the dramatic spread of “Las Vegas” style casinos in the United States has become a point of great interest and inquiry both politically and academically. Prior research has tended to focus on regional studies and provided uniform conclusions regardless of differences in the nature of the community. Moreover, much of the previous empirical work fails to account for local level trends during estimation. By using a comprehensive data set on employment and earnings from across the US, and by including county-specific trends, this research hopes to alleviate these earlier concerns, as well as help reconcile differences in the early literature surrounding casino effects on related industrial sectors. Basic findings suggest that counties experience an increase in employment after a casino opens, but there seems to be no measurable effect on average earnings. More detailed analysis reveals that the effect on industries related to casinos is somewhat mixed, but in general mildly positive, as casinos provide a positive employment and earnings spillovers into the surrounding local community. Intertemporal estimation suggests that the casino effect changes over time, but also finds that time effects vary across sectors. Estimates of how overall effects vary across different population sizes find that employment growth is inversely related to county population. Finally, additional estimation finds little impact on employment levels in neighboring counties, although there are some small effects in certain industries.I would like to thank Scott Adams, Scott Drewianka, John Heywood, James Peoples, McKinley Blackburn, Keith Bender, Don Siegel, Gary Anders, Doug Walker, and Mike Wentz for their helpful suggestions. I would also thank David Mustard and Earl Grinols for their help with the data. Dain Johnson provided valuable research assistance
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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