1,721,409 research outputs found
Le fantôme et la machine
No full textMartin Jonathan, Chemero Anthony. Le fantôme et la machine. In: Intellectica. Revue de l'Association pour la Recherche Cognitive, n°60, 2013/2. Pragmatisme(s) et sciences cognitives. pp. 251-261
Growth and motion at the Weddell Sea ice edge
No full textThe formation of sea ice in the presence of turbulence was studied using data from drifting buoydeployments and ice sampling in the Weddell Sea during April 2000. The study sought toimprove understanding of pancake ice in terms of dynamics, heat fluxes, ice growth rates andmechanisms.Ice motion at high frequencies was examined using GPS buoy positions at a 20-minutesampling interval. Relative motions of the buoy array were characterised by a markedoscillation at the highest frequencies, with an RMS value two orders of magnitude higher thanpreviously seen in the Weddell Sea. This motion ceased overnight as the pancakes consolidated.Wave forcing, either surface gravity or internal, was postulated as the cause. The oscillation wasfound to significantly influence the proportions of pancake and frazil ice, though the nature ofthe ice cover meant that ice production rates were unaffected, in contrast to the enhanced growththis would imply for congelation ice. Momentum transfer parameters were found to be similarto those found for the Greenland Sea Odden ice tongue.Pancakes were found to be dominantly thickened by over-topping of the surroundingfrazil ice crystals, termed ‘scavenging’, and gave rise to distinct morphologies, which wereclassified. A physical model was developed to describe the evolution of the pancake ice cover toconsolidation. Ice production in the pancake/frazil process was found to proceed atapproximately double the rate of the equivalent congelation ice cover, or 0.58 times the limitingfree-surface frazil production. It was suggested that the discrepancy will seriously impact largescalemodelling attempts to simulate heat and momentum fluxes between the ocean andatmosphere, as well as salt rejection and subsequent water mass modification, though it isacknowledged that further field measurements are required to place some currently empiricalparameters into a physical context
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
Review the development of digital economy in indonesia - Martin Jonathan 130216053
No full textTujuan dilakuka penelitian ini adalah memberitahukan Jumlah pengguna internet saat ini di Indonesia telah melampaui 50
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
Judgement day Terminating logic programs
No full textSIGLEAvailable from British Library Document Supply Centre-DSC:DXN039395 / BLDSC - British Library Document Supply CentreGBUnited Kingdo
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