89 research outputs found
"Model Checking" et Systèmes Répartis Paramétrés
We propose a solution to solve part of the verification problem for a set of parallel programs that are the instantiations of a same algorithm. The instantiated parameter is the number of processes. All the possible programs are supposed to satisfy the same properties. Petri nets with guarded transitions model the programs. The originality of our method is to build a symbolic graph that allows us to verify temporal properties that concern the behavior of the whole program as well as properties that concern the behavior of a single process. The nodes of the symbolic graph are predicates that represent sets of states.Nous proposons une solution partielle à la vérification de propriétés d'un ensemble de programmes instances d'un même algorithme. Le paramètre instancié est le nombre de processus. Tous les programmes possibles doivent satisfaire un même ensemble de propriétés. Les algorithmes sont modélisés par des réseaux de Petri avec gardes. L'originalité de notre travail est de construire un graphe symbolique permettant de vérifier des formules de logique temporelle. Ces propriétés peuvent concernerle comportement global des programmes ou un seul processus. Les noeuds du graphe symbolique sont des prédicats représentant des ensembles d'états
"Model Checking" et Systèmes Répartis Paramétrés
We propose a solution to solve part of the verification problem for a set of parallel programs that are the instantiations of a same algorithm. The instantiated parameter is the number of processes. All the possible programs are supposed to satisfy the same properties. Petri nets with guarded transitions model the programs. The originality of our method is to build a symbolic graph that allows us to verify temporal properties that concern the behavior of the whole program as well as properties that concern the behavior of a single process. The nodes of the symbolic graph are predicates that represent sets of states.Nous proposons une solution partielle à la vérification de propriétés d'un ensemble de programmes instances d'un même algorithme. Le paramètre instancié est le nombre de processus. Tous les programmes possibles doivent satisfaire un même ensemble de propriétés. Les algorithmes sont modélisés par des réseaux de Petri avec gardes. L'originalité de notre travail est de construire un graphe symbolique permettant de vérifier des formules de logique temporelle. Ces propriétés peuvent concernerle comportement global des programmes ou un seul processus. Les noeuds du graphe symbolique sont des prédicats représentant des ensembles d'états
Bureau Veritas. Comment déployer une démarche éthique universelle dans un contexte multiculturel ?
International audienc
Insuffisance rénale aigüe par compression urétérale secondaire à la présence d'anévrysmes illiaques
TOULOUSE3-BU Santé-Centrale (315552105) / SudocPARIS-BIUM (751062103) / SudocSudocFranceF
Modélisation et vérification de l'interopérabilité de services de télécommunication
National audienc
Modélisation et vérification de l'interopérabilité de services de télécommunication
National audienc
The LIM-homeodomain gene family in the developing Xenopus brain: conservation and divergences with the mouse related to the evolution of the forebrain.
A comparative analysis of LIM-homeodomain (LIM-hd) expression patterns in the developing stage 32 Xenopus brain is presented. x-Lhx2, x-Lhx7, and x-Lhx9 were isolated and their expression, together with that of x-Lhx1 and x-Lhx5, was analyzed in terms of prosomeric brain development and LIM-hd combinatorial code and compared with mouse expression data. The results show an almost complete conservation of expression patterns in the diencephalon. The Lhx1/5 and Lhx2/9 subgroups label the pretectum/ventral thalamus/zona limitans versus the dorsal thalamus, respectively, in alternating stripes of expression in both species. Conversely, strong divergences in expression patterns are observed between the telencephalon of the two species for Lhx1/5 and Lhx2/9. Lhx7 exhibits particularly conservative patterns and is proposed as a medial ganglionic eminence marker. The conservation of diencephalic segments is proposed to mirror the conservative nature of diencephalic structures across vertebrates. In contrast, the telencephalic divergences are proposed to reflect the emergence of significant novelty in the telencephalon (connectivity changes) at the anamniote/amniote transition. Moreover, the data allow the new delineation of pallial and subpallial domains in the developing frog telencephalon, which are compared with mouse subdivisions. In the pallium, the mouse combinatorial expression of LIM-hd is notably richer than in the frog, again possibly reflecting evolutionary changes in cortical connectivity
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