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Proceedings of the Association for Library and Information Science Education Annual Conference: ALISE 2018
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Proceedings of the Association for Library and Information Science Education Annual Conference: ALISE 2018
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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
Modeling and Analyzing the Deformation of Ballast Structures Due to Repetition of Loads
No full textThe issue of permanent deformation of ballast structure due to repetition of loads is the most
important element in railway maintenance planning and policy making. It affects the general
operation and management of railway transportation plus the overall costs of track structure and
its life spans.
To allow a safe, reliable and efficient rail network and to provide a good ride quality, the
vertical profile of a railway track has to be maintained at a satisfactory level. And timely
maintenance of ballast structure is essential to provide continuous service at reasonable costs
since the track permanent deformation is a function of traffic load, environmental condition and
track structure response behavior to the applied loads at different times of service life. Although
most of the time deterioration process is very slow, but it might lead to massive failures with an
enormous financial lose. This research determines the permanent deformation of railway ballast,
particularly the vertical settlement under repeated traffic loading. Experimental data reviewed in
the literature were assumed to represent the ballast materials used in LRT projects.
After initial elastic modeling, the extended Drucker-Prager model with hardening, which
simulates the initial plastic deformation of granular materials under cyclic loads, were used in the
FEM analysis in order to account for the inelastic behavior of railway ballast. Besides, FEM
analysis provides the information to predict railway ballast deformation in terms of number of
loading under wheel loading. And it can be observed that the vertical stresses were concentrated
underneath the sleeper and ballast permanent deformation is increasing exponentially with
increasing number of loading cycles and deform non- linearly with increasing depths of ballast
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
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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