1,724,307 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
Letter from W. T. Johnson to Mr. F. M. Mitchell, Branch Manager, Frigidaire Sales
No full textLetter from W. T. Johnson to Mr. F. M. Mitchell, Branch Manager, Frigidaire Sales, concerning refrigerator and ice maker
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
The mechanics of phyllosilicates-bearing faults: insights from field examples and rock deformation experiments
Get PDFFaults in the brittle crust are zones of weakness, whose reactivation depends on their friction and stress field acting on them. Over the last few decades, increasingly attention has been paid to characterize the frictional properties of phyllosilicates. These layer-structured minerals are indeed particularly weak, if compared with earliest laboratory experiments conducted on a vast gamut of crustal rocks showing friction almost independent of rock type and in the range of μ = 0.6-0.85. Phyllosilicates are not only inherently weak, but also unable to re-gain strength during inter-seismic period and to host earthquake nucleation. Moreover, previous studies have reported that even small amounts of phyllosilicates can drastically affect the overall frictional properties of fault rocks. These observations have strong implications for natural faults that involve different lithologies, including phyllosilicates-bearing rocks, and thus develop geometrical and lithological heterogeneities along dip and strike. The influence of these heterogeneities on fault mechanics is still poorly constrained. Here, I integrate field observations and laboratory experiments on phyllosilicate-bearing faults to address different aspects regarding the role of phyllosilicates in fault mechanics. I examine questions such as: what is the minimum amount of phyllosilicates that drastically affects fault frictional properties? What is the mechanics of incipient faults within phyllosilicate-rich mechanical multilayers? What is the role of stress field orientation in the reactivation of phyllosilicate-bearing faults? In Chapter 1, I experimentally investigate the frictional properties of talc-bearing faults in carbonates. Although talc has been found along carbonate-bearing faults, little is known about the amount of talc able to effectively weaken calcite fault gouges. In Chapter 2, I integrate field data and laboratory deformation experiments to study fault initiation and growth within clay-rich mechanical multilayers. Thus I give insight into the mechanics of clay-rich multilayers that is still poorly understood. In Chapter 3, I report on laboratory deformation experiments designed to evaluate the reactivation of pre-existing clay-bearing faults depending on their orientation within the stress field. The reactivation of pre-existing faults can be theoretically predicted assuming a zero-thickness fault. I attempt to validate frictional reactivation for a finite-thickness fault. This dissertation provides insight into the mechanics of phyllosilicate-bearings faults. Firstly, I show that small amounts of talc fully weaken calcite-rich faults, developing an interconnected network of talc lamellae, and that even minor amounts of talc result in the evolution from velocity-neutral to velocity-strengthening behavior and in the reduction of 50% in frictional healing. Secondly, I demonstrate that the complex geometry of faults affecting mechanical multilayers results from the interplay between the mechanical properties of the involved lithologies and the presence of pre-existing discontinuities. Finally, I show that misoriented faults of finite thickness are weaker than theoretically predicted and that the assumption of a zero-thickness plane provides an upper bound for the stress required for the reactivation of a finite-thickness fault
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
International Business: Research, Teaching and Practice. volume 7 (1) 2013
No full textThe 2012 Academy of International Business Southeast USA Annual Conference
was held at Florida Atlantic University in Fort Lauderdale and was one of the most
successful conferences in the chapter’s long history. The 2012 AIB-SE conference
delivered a record-breaking number of contributions from over 400 scholars, students
and business practitioners from over 40 countries, and 6 continents. The annual
meeting offered competitive and interactive paper sessions, a variety of thematic
panels, a doctoral consortium, a meet-the-editors session with representatives
from reputable international business journals and publications, a journal paper
development workshop, a number of X-Culture events for undergraduate and master
students from around the world, and several exciting professional development and
social networking events.
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that focus. The best conference papers were invited to be considered for publication
in this special issue of International Business: Research, Teaching and Practice. Five
papers were chosen and the special issue mirrors the wide multi-disciplinary and
multi-method approaches adopted by scholars, students and business practitioners
that joined the conference
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