24 research outputs found
Science et foi, par P. Chauchard, R. Chauvin, O. Costa de Beauregard, D. Dubarle, O. P., A. George, P. Germain, J.-L. Kahn, R. Lavocat, P. Lejay, S. J., R. Lennuier, L. Leprince-Ringuet, J. Lhermitte, G. Mangenot, M. Polonovski, P. Ricœur, Ph. Roqueplo, O. P., F. Russo, S. J
No full textRobert Jean-Dominique. Science et foi, par P. Chauchard, R. Chauvin, O. Costa de Beauregard, D. Dubarle, O. P., A. George, P. Germain, J.-L. Kahn, R. Lavocat, P. Lejay, S. J., R. Lennuier, L. Leprince-Ringuet, J. Lhermitte, G. Mangenot, M. Polonovski, P. Ricœur, Ph. Roqueplo, O. P., F. Russo, S. J. In: Revue Philosophique de Louvain. Troisième série, tome 63, n°78, 1965. p. 304
On the Constructions of the Skew Brownian Motion
No full texthttp://www.imstat.org/This article summarizes the various ways one may use to construct the Skew Brownian motion, and shows their connections. Recent applications of this process in modelling and numerical simulation motivates this survey. This article ends with a brief account of related results, extensions and applications of the Skew Brownian motion
On rough differential equations
No full textInternational audienceWe prove that the Ito map, that is the map that gives the solution of a differential equation controlled by a rough path of finite p-variation with p in [2,3) is locally Lipschitz continuous in all its arguments and could be extended to vector fields that have only a linear growth
The non-linear sewing lemma II: Lipschitz continuous formulation
No full textInternational audienceWe give an unified framework to solve rough differential equations. Based on flows, our approach unifies the former ones developed by Davie, Friz-Victoir and Bailleul. The main idea is to build a flow from the iterated product of an almost flow which can be viewed as a good approximation of the solution at small time. In this second article, we give some tractable conditions under which the limit flow is Lipschitz continuous and its links with uniqueness of solutions of rough differential equations. We also give perturbation formulas on almost flows which link the former constructions
CePt<sub>2</sub>Si<sub>2</sub>: a Kondo lattice compound with no magnetic ordering down to 0.06K
No full textObservation of vortex coalescence, vortex chains and crossing vortices in the anisotropic spin-triplet superconductor Sr2RuO4
No full textto appear in Physica C M2S conference DresdenScanning SQUID force microscopy is used to study magnetic flux structures in single crystals of the layered spin triplet superconductor SrRuO. Images of the magnetic flux configuration above the -face of the cleaved crystal are acquired, mostly after field-cooling the sample. For low applied magnetic fields, individual vortices are observed, each carrying a single quantum of flux. Above 1 gauss, coalescence of vortices is discovered. The coalescing vortices may indicate the presence of domains of a chiral order parameter. When the applied field is tilted from the -axis, we observe a gradual transition from vortex domains to vortex chains. The in-plane component of the applied magnetic field transforms the vortex domains to vortex chains by aligning them along the field direction.This behavior and the inter-chain distance varies in qualitative agreement with the Ginzburg Landau theory of anisotropic 3D superconductors. The effective mass anisotropy of SrRuO, =20, is the highest observed in three dimensional superconductors. When the applied field is closely in plane, the vortex form flux channels confined between the crystal-layers. Residual Abrikosov vortices are pinned preferentially on these channels. Thus the in-plane vortices are decorated by crossing Abrikosov vortices: two vortex orientations are apparent simultaneously, one along the layers and the other perpendicular to the layers
Use of therapeutic patient education tools for atopic dermatitis: A French national survey
No full textInternational audienceAbstract Background Allergic contact dermatitis to gloves is mostly induced by rubber accelerators. The European baseline series (EBS) appears insufficient to detect glove allergy. Since 2017, it is recommended to use the European rubber series (ERS) and to test the patients' own gloves. Objectives To investigate the clinical profile of glove‐wearing patients with hand eczema (HE) and to evaluate their sensitisation profile to glove allergens and the value of testing the patients' own gloves. Methods We conducted a French multicentre study of patients evaluated for HE between 2018 and 2020 and tested with the EBS, the ERS and their own gloves in patch tests and semi‐open (SO) tests. Results A total of 279 patients were included; 32.6% of patients had positive tests to their own gloves or to glove allergens. Almost 45% of the sensitisations to glove allergens were detected only by the ERS. Among the patients tested both in patch tests and SO tests with their own gloves with positive results, 28% had positive SO tests only. Polyvinylchloride (PVC) gloves were positive in four patients. Conclusion Our series confirms the need to test the ERS. All the patients' gloves must also be tested including PVC gloves. SO tests with gloves are useful as a complement to patch tests
Increase in Tomato Locule Number Is Controlled by Two Single-Nucleotide Polymorphisms Located
No full textIn tomato (Solanum lycopersicum) fruit, the number of locules (cavities containing seeds that are derived from carpels) varies from two to up to 10 or more. Locule number affects fruit shape and size and is controlled by several quantitative trait loci(QTLs). The large majority of the phenotypic variation is explained by two of these QTLs, fasciated (fas) and locule number (lc), that interact epistatically with one another. FAS has been cloned, and mutations in the gene are described as key factors leading
to the increase in fruit size in modern varieties. Here, we report the map-based cloning of lc. The lc QTL includes a 1,600-bp region that is located 1,080 bp from the 3# end of WUSCHEL, which encodes a homeodomain protein that regulates stem cell fate in plants. The molecular evolution of lc showed a reduction of diversity in cultivated accessions with the exception of two single-nucleotide polymorphisms. These two single-nucleotide polymorphisms were shown to be responsible for the increase in locule number. An evolutionary model of locule number is proposed herein, suggesting that the fas mutation appeared after the mutation in the lc locus to confer the extreme high-locule-number phenotype
