1,720,958 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
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
NUMERICAL INVESTIGATION OF DISSIPATIVE BEHAVIOR OF CONNECTION USING POST-INSTALLED ANCHORS
Full text linkSteel to concrete connections using post-installed anchors are nowadays used in seismic-prone countries worldwide. In the case of structures where steel to concrete connections link primarily members (e.g. resistant to seismic loads) or they are used for seismic retrofit, some questions may arise:(a) what is the stiffness of the structure; (b) what is q factor in case of new building (essential in commonly adopted design with response spectra). A lack of knowledge is recognized in the contribution of the connection to the seismic performance at whole structural level. Ductile behavior and hysteretic energy dissipation of the connection become fundamental aspects to be investigated complying with capacity design approach, namely to ensure local dissipation (plastic hinges) preserving the structure as a whole. The present paper addresses the problem of column-to-foundation connection using bonded anchors with stretch length, subjected to seismic loads. Numerical models, using simple beam elements with lumped plasticity, are calibrated starting from experimental results on the sub-structure namely (i) steel column, (ii) steel base plate; (iii) anchors. Changes in anchors’ non-linear behavior are investigated. An application to one-story frame subjected to seismic artificial accelerograms is then presented
A REVIEW OF EXISTING PROVISIONS FOR SEISMIC QUALIFICATION AND DESIGN OF POST-INSTALLED FASTENERS
No full textIn the last decade many efforts were put to define both qualification procedures and design procedures for post-installed fasteners under seismic actions both in Europe and in the US.
However, significant differences may be found in the two approaches, both in terms of testing protocols and relevant acceptance criteria and in design criteria, which may generate confusion for practitioners in defining design requirements.
A general review of existing design criteria for post-installed steel-to-concrete connections under seismic action is presented, with particular emphasis on the new approach of Eurocode 2 part 4.
Design options by protection of the fastener or by protection of the attached element are introduced, discussing the capabilities and limitations of each solution.
On the basis of the introduced design criteria, requirements for qualification are presented and discussed. For such design criteria it is shown how a qualification procedure should account for both load and crack cycling to guarantee suitability for both structural and non-structural applications
Bi–axially loaded RC beam–column joints and haunch retrofit
Full text linkIn this study, seismic bi–axially loaded RC beam–column joints are investigated. An experimental campaign on shear–critical corner joints is presented, including two as–built specimens and one retrofitted using fully–fastened–haunches (FFHR). Bi–axial tests adopted hexagonal protocol which is essentially to apply load in one direction double with respect to the other. Results obtained for as–built condition were included in a database of corner joints tested bi–axially and discussed in the light of the impact of bi–axial load on joint’s shear strength. Further, non–linear finite elements were employed to thoroughly evaluate the bi–axial response. Haunch retrofit was capable to reduce both shear stresses and distortion at joint. Experimentally–derived internal forces were used to validate three–dimensional Strut-and-Tie model of the joints. Such design tool is recommended for practice cases adopting FFHR
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