1,720,957 research outputs found
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
Optimistic and ability biases in pilots’ decisions and perceptions of risk regarding VFR flight into IMC
Get PDFAircraft accidents resulting from attempted visual flight rules (VFR) flight into instrument meteorological conditions (IMC) continue to be one of the leading causes of fatalities in aviation. The aim of this study is to determine the role which two decision biases— optimistic bias and ability bias—may play in pilots’ decisions and perceptions of risk regarding VFR flight into IMC. A questionnaire designed to test for the presence of these biases was administered to 57 pilots enrolled in a university flight-training program and 103 general aviation pilots attending two FAA aviation safety seminars. Respondents were asked to rate their chances of experiencing an accident due to inadvertent VFR flight into IMC and their ability to avoid or successfully fly out of such conditions. Results indicate that VFR pilots are overly optimistic regarding their chances of experiencing a VFR-into-IMC accident, and are overconfident in their ability to both avoid and successfully fly out of IMC
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Post-encoding Verbalization Impairs Transfer on Artifical Grammar Tasks
Get PDFIn a series of studies, Schooler and Engstler-Schooler
(1990) showed that verbalization of previously
encountered non-verbal stimuli can impair subsequent memory performance. The present study investigates the possibility that the verbal disruption of non-verbal
processes, called verbal overshadowing, m a y be
applied to implicit learning, i.e., where what is
learned is difTicult to verbalize. One frequently
studied area of implicit learning is artificial grammars
(e.g., Reber & Lewis, 1977). In the artificial
grammar research, it has been shown that subjects can
learn information about regularities in letter strings
generated from a fmite state grammar, as measured by
transfer tests, while being unable to usefully state
what those regularities are. The apparent disparity
between subjects' competent performance on artificial
grammar tasks and their inabiUty to explain the rules
of those tasks suggests the possibility that
verbalization following memorization of artificial
grammar strings may impair subjects' performance on
a transfer task. In this study, subjects memorized a
subset of grammatical letter strings, then half of them
verbalized the rules they learned during memorization.
The verbal subjects performed significantly worse
than the non-verbal subjects on a transfer task,
providing preliminary evidence that verbalization may
impair transfer when the learned information is
difficult to verbaliz
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
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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