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Mass transportation on sub-Riemannian structures of rank two in dimension four
No full textThis paper is concerned with the study of the Monge optimal transport problem in sub-Riemannian manifolds where the cost is given by the square of the sub-Riemannian distance. Our aim is to extend previous results on existence and uniqueness of optimal transport maps to cases of sub-Riemannian structures which admit many singular minimizing geodesics. We treat here the case of sub-Riemannian structures of rank two in dimension four
Acid-Sensing Ion Channel 1a in the amygdala is involved in pain and anxiety-related behaviours associated with arthritis
No full textInternational audienc
Influence d’un radiateur métallique sur le fonctionnement d’une antenne 4 accès type monopole tri-bande
No full textNational audienceCet article présente une étude sur l’influence d’un radiateur métallique dans l’environnement proche d’une antenne MIMO à 4 accès tri-bande, conçue pour les bandes LTE [0,7-0,9], [1,7-1,88], et [2,5-2,69] GHz. Alors que sa présence aurait pu les pénaliser, les performancesde l’antenne ont pu être améliorées avec ce radiateur utilisé comme réflecteur, ce qui a permis de réduire le rayonnement arrière, de le réfléchir vers l’avant et d’ainsi, doubler le gain réalisé
Atlas des migrants en Europe. Approche critique des politiques migratoires
No full textInternational audienc
A multi-seasonal model of plant-nematode interactions and its use to identify durable plant resistance deployment strategies
No full textInternational audienceRoot-knot nematodes of the genus Meloidogyne are soil-borne, little mobile, polyphagous pests which threaten important sheltered crops such as vegetables or small fruits. They attack plant roots to feed and reproduce and have a major impact on crop yield. Most eco-friendly plant protection strategies are based on the use of resistant crops. The emergence of virulent nematode variants, which are adapted to the resistance, challenges the durability of such methods. Because virulent root-knot nematodes exhibit a reduced fitness on susceptible crops, combining both resistant and susceptible plants can help increase the efficacy and sustainability of resistance-based nematode control. Since nematodes have poor intrinsic dispersal ability, the association between resistant and susceptible plants should rely on crop rotation over cropping seasons, rather than on spatial arrangements. We proposed a semi-discrete model describing the population dynamics of plant roots and of nematodes within and over cropping seasons. This model, inspired by epidemiological concepts, was fitted to literature data on the within cropping season dynamics of susceptible tomato plants and avirulent nematodes; it was then extended to also account for resistant plants and virulent parasites. The model was used to compute optimal crop rotation strategies with respect to the minimization of an epidemiological criterion called AUDPC to increase crop yield over different time horizons (between 2 and 40 cropping seasons
New developments in ESP teaching and learning research
No full textInternational audienceIn this collective volume, we seek to bridge gaps between research and practice in the teaching and learning of English for Specific Purposes (ESP) with a set of strong research-based contributions drawing on a wide range of ESP contexts. It offers new theoretical and pedagogical insights for ESP practitioners and researchers alike, going beyond descriptions of ESP situations and programmes to bring in sound research design and data analysis which are firmly anchored in previous ESP research. The nine papers in this collection cover a variety of ESP domains, from medicine, technical science, and engineering to social sciences and the humanities, in order to encapsulate current trends and new developments in ESP teaching and learning research in Europe
Spatial Organisation of the Traditional Cultural Landscape of the Evenks (Example of South Yakutia)
No full textInternational audienceThe article describes the main spatial properties of traditional cultural landscape of the Evenks in South Yakutia. The study is based on the of field research conducted on key areas of Evenks in South Yakutia – interviews, representation modelling, observations – and the use of Sentinel 2A remote sensing for mapping and contextualising the geographic environment of living places. The characteristic features of the territory of traditional use of natural resources is described; more especially the relations between economic activity and the spatial model of cultural landscape. Management of natural resources in the traditional culture of the Evenks is a balanced economic activity, adapted to the local natural conditions and formed under their influence. The main functional factor of traditional Evenki cultural landscape is reindeer herding and hunting.The traditional cultural landscape of Evenk is presented from two perspectives: objective as a geographic object of analysis (landscape and visual, formal aspect) and subjective - symbolic and humanistic aspect (mythological, toponymic features are analysed). Joint subjective and objective approaches bring out a spatial model of the Evenks cultural landscape characterised by a centric multi-zonal structure; recognised and modelled by the remote sensing. The spatial properties of traditional cultural landscape along with the Evenki material culture highlight spiritual and religious, moral and aesthetic values. The research project “Landscape ontology: semantics, semiotics, and geographic modelling” (№ 15-18-20047) funded by the Russian Science Foundation
Learning or inertia? The impact of experience and knowledge codification on post-acquisition integration
No full textInternational audienc
