Jean-Guy Caputo,1,2 Yuri Gaididei,3 Volodymyr P. Kravchuk,4 Franz G. Mertens,5 and Denis D. Sheka4,* 1Laboratoire de Mathématiques, INSA de Rouen, Boîte Postale 8, 76131 Mont-Saint-Aignan Cedex, France 2Laboratoire de Physique Theorique et Modelisation, Université de Cergy-Pontoise and CNRS, Cergy-Pontoise 95011, France 3Institute for Theoretical Physics, 03143 Kiev, Ukraine 4National Taras She...

Main-sequence Pop II stars stars with effective temperatures between 5500K and 6500K show a remarquably constant value for the lithium abundance (⇐⇒ the lithium plateau). Furthermore the dispersion around this value is very small (Bonifacio & Molaro 1997). However, from the observations of Pop I stars, there is strong evidence that the lithium abundance highly varies from star to star. The vari...

Open and Distance Learning platforms are more than system delivering pedagogical ressources. They require mechanisms for the enactment and coordination of pedagogical modules and learning activities. A common solution to express learning paths in learning management systems (LMS) can be the use of Educational Modelling Languages (EML). The next step will be the enactment of these models. For th...

From the ‡European Molecular Biology Laboratory (EMBL) Hamburg c/o DESY, D-22607 Hamburg, Germany, the **Institute of Bioorganic Chemistry, Polish Academy of Sciences, 61–704 Poznan, Poland and Institute of Biochemistry and Molecular Biology, University Hospital, Hamburg-Eppendorf, c⁄o DESY, 22603 Hamburg, Germany, the ¶Laboratoire de Cristallographie et Modelisation des Matériaux Mineraux et B...

In this article we propose a modification to the HMRF-EM framework applied to image segmentation. To do so, we introduce a new model for the neighborhood energy function of the Hidden Markov Random Fields model based on the Hidden Markov Model formalism. With this new energy model, we aim at (1) avoiding the use of a key parameter chosen empirically on which the results of the current models ar...

We present a theoretical analysis of the dynamics one-dimensional spin-1/2 fermionic gas subject to weak two-body losses. Our approach highlights crucial role played by spin conservation in determination full time evolution. focus particular on that is initially prepared Dicke state with fully-symmetric wavefunction, band insulator, or Mott insulator. In latter case, we investigate emergence st...

The maturity of the GreenLab model at the single plant and uniform crop level has led us to consider its application to the landscape scale, where heterogenity in space and time becomes an issue but where applications are. Our focus remained on plants and the related biophysical processes but we aimed at "functional landscapes" that should eventually achieve some quantitative realism. We adopte...