1,721,073 research outputs found
Data for : Ecological associations distribution modelling of marine plankton at global scale
No full text<p>Git repository : https://gitlab.univ-nantes.fr/combi-ls2n/adm</p>
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
Impact du stress psychologique sur le remodelage de l’interactome hôte-microbiote
No full textA la frontière entre notre milieu interne et l’environnement, le tube digestif constitue une succession d’organe spécialisé qui permet la récolte d’énergie nécessaire au fonctionnement du corps et qui assure une fonction de barrière biologique contre les pathogènes et toxines de l’environnement. Il est en relation avec le microbiome qu’il abrite, et qui complète ses fonctions grâce à son vaste métagénome. Dans les phases pré-symptologiques des maladies chroniques, une rupture de l’homéostasie est observée et reflète des défauts de cet interactome hôte-microbiote. L’étude de ces phases dynamiques qui marquent le passage de l’équilibre au déséquilibre est complexe et requiert le développement de méthodes systémiques. Dans ce travail de thèse, nous avons employé un modèle de stress psychologique (SP) pour étudier ces phases précoces des physiopathologies intestinales. Les microenvironnements intestinaux de souris soumises à un stress d’évitement de l’eau ont été caractérisé macroscopiquement et à l’échelle moléculaire pour déterminer les changements de composition du microbiote adhérent et luminal, ainsi que les modifications de l’expression des gènes de l’épithélium. Nous avons pu mettre en évidence un effet régional pro-prolifératif et pro-apoptotique du SP sur la partie distale du colon, ainsi que des changements de diversité et composition du microbiote intestinal adhérent et luminal. Enfin le développement de nouvelles analyses multi-omiques a permis l’extraction de signatures intégratives et l’identification de biomarqueurs transcriptomiques de l’épithélium intestinal et bactériens adhérents et luminaux associés à des changements d’états des barrières d’organesAt the frontier between our internal and external milieu, the digestive tract constitutes a succession of specialized organs which harvest energy from diet to fulfill our body needs and ensures a biological barrier function against pathogens and toxins from the environment. It is associated to the microbiome, which completes its functions through its vast metagenome. In the pre-symptological phases of chronic diseases, a disruption of homeostasis is observed and reflects defects in this host-microbiota interactome. The study of these dynamic phases that mark the transition from equilibrium to disequilibrium and remain complex to capture; it requires the development of systemic methods. In this thesis work, we employed a psychological stress (PS) model to study these early phases of gut pathophysiology. The gut microenvironments of mice subjected to water avoidance stress were characterized macroscopically and at the molecular level to determine changes in the composition of the adherent and luminal microbiota, as well as changes in epithelial gene expression. We were able to demonstrate a regional pro-proliferative and pro-apoptotic effect of SP on the distal part of the colon, as well as changes in the diversity and composition of the adherent and luminal intestinal microbiota. Finally, the development of new multi-omics analyses allowed the extraction of integrative signatures and the identification of transcriptomic biomarkers of the intestinal epithelium and adherent and luminal bacteria associated with changes in organ barrier state
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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