1,721,110 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
Spurious numerical mixing in a regional configuration of the Symphonie ocean model over the South-East asian Seas
No full text<p>This file includes the codes of the Symphonie ocean model (version 3.1.2) and the South-East Asian Seas configuration at 5 km resolution, along with preprocessed output data from some simulations, to be used with the plotting code provided on the following git repo : <a href="https://github.com/Clapinet/SpuriousMixingSEA">https://github.com/Clapinet/SpuriousMixingSEA</a>.</p>
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
Study of the north western Mediterranean sea circulation with a high resolution model : bubmesoscale influence
No full textLa mer Méditerranée Nord occidentale est une des rares régions dans le monde où le phénomène de convection profonde se produit au large. La circulation cyclonique locale amène des eaux faiblement stratifiées à la surface et peut, sous certaines conditions atmosphériques hivernales spécifiques à la région (vents froids venant du nord et induisant des pertes de chaleur intenses à la surface de l'océan), mener à un mélange vertical diapycnal. Le phénomène de convection est à l'origine des eaux qui se forment en hiver: la WIW (Winter Intermediate Water) et les nWMDW (new Western Mediterranean Deep Waters). Quand les forçages atmosphériques diminuent en intensité, la restratification de la zone mélangée commence par l'advection d'eaux légères environnantes. Des structures de mésoéchelle et de submésoéchelle jouent un rôle important pendant ces évènements à la fois par l'approfondissement de la couche de mélange et l'export des eaux nouvellement formées. Le modèle SYMPHONIE a été implémenté avec une résolution de 1km sur le bassin nord occidental et les évènements de convection des hivers récents ont été simulés. Le premier objectif a été de vérifier la capacité du modèle à haute résolution à reproduire la réponse océanique aux forçages atmosphériques en terme de formation de masses d'eau et de représentation des structures de submésoéchelle. Cette validation a été réalisée par comparaisons avec un jeu de données disponibles et issues de l'observation. L'activité des petites échelles et le rôle qu'elles jouent dans un contexte d'approfondissement de la couche de mélange en hiver ont été soulignés. La dynamique agéostrophique qu'elles développent par la submésoéchelle contribue à une augmentation des vitesses verticales et de la diffusion latérale des propriétés de l'océan induisant une plus forte densification globale de la couche de mélange. Comme conséquences, la formation d'eaux denses ainsi que la ventilation des eaux profondes du bassin est favorisée. Pour la première fois, la formation de SCVs (Submesoscale Coherent Vortices) suite à un évènement de convection profonde a été modélisée en Méditérranée Nord-Occidentale en utilisant un modèle numérique à haute résolution dans un contexte réaliste. Des structures tourbillonnaires cycloniques et anticycloniques se forment à la frontière de la zone de mélange et présentent des temps de vie parfois supérieurs à une année reflètant de très lents processus de diffusion entre leur coeur et les eaux environnantes. Ces tourbillons sont typiques des SCVs observés jusqu'à présent dans les zones de convection profonde, participent dans une proportion importante (30%) à l'export des eaux nouvellement formées et jouent un rôle considérable dans la ventilation des eaux profondes du bassin.The North Western Mediterranean Sea is one of the few regions in the world where open-ocean deep convection occurs. The local cyclonic circulation brings weakly stratified waters close to the surface, that can, under special atmospheric conditions (winter strong cold winds and high heat loss rates), lead to vertical diapycnal mixing. This convection phenomenon is the origin of newly formed winter waters: Winter Intermediate Water (WIW) and new Western Mediterranean Deep Waters (nWMDW). When the strong forcing stops, the restratification of the mixed patch occurs by lateral advection of surrounding lighter waters. Mesoscale and submesoscale structures play an important role during these events, both by the sinking and the spreading of the new water formed. The SYMPHONIE model was implemented at 1km resolution over the north-western Mediterranean where recent convective years were simulated. The first objective was to review the capabilities of the high resolution model to reproduce the oceanic response to strong atmospheric cooling in terms of water formation and to resolve the submesoscale structures. To do so, comparisons were performed with the available data set. The activity of the small scale structures and the role they played were highlighted in a context of winter mixed layer deepening. The ageostrophic dynamic developed by submesoscale contributes to the enhancement of vertical velocities and lateral dispersion of properties leading to a global increase of surface layer density. As a consequence, the dense water formation and the ventilation of the deep basin is favored. For the first time, the formation of Submesoscale Coherent Vortices (SCVs) during deep convection events was documented in a realistic high resolution numerical simulation of the oceanic circulation in the north-western Mediterranean Sea. Anticyclonic and cyclonic eddies were formed presenting lifetimes exceeding one year and reflecting very slow diffusive processes between their core and their surroundings. These eddies were typical of SCVs observed in deep convection areas so far, which were found to participate in the spreading of a significant proportion (30%) of the newly formed waters and were of much importance for the ventilation of the deep basin
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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