Filaria conjunctivæ Addario 1885, parasite accidentel de l’homme, est un Dirofilaria

Votre Plan d'Exécution de Requêtes est un Circuit Intégré : Changer de Métier

Résumé. Dans la première génération des bases de données, les optimiseurs étaient conçus pour optimiser des requêtes individuelles. Après identification des interactions entre les requêtes, des optimiseurs étaient proposés pour offrir une optimisation multiple. La difficulté de cette optimisation est l’identification des expressions communes entre les requêtes. Ce problème est connu comme NP-di...

Un syndrome « Furoculose de la truite»

Sur le Monoide Syntactique de L Lorsque L est un Langage Fini

We prove that for every finite monoid M , there exists a finite language L such that M divides the syntactic monoid of L∗. Moreover, one can choose for L a full finite prefix code. The same result for finite group has already been proved by Schützenberger. This result is crucial in the proof of the J.-F. Perrot’s theorem that the only variety closed under star operation is the variety of all ra...

Thèse de doctorat de l'Université Paris-Est

Organic aerosol formation in the atmosphere is investigated via the developpement of a new model named H2O (Hydrohilic/Hydrophobic Organics). First, a parameterization is developped to take into account secondary organic aerosol formation from isoprene oxidation. It takes into account the e ect of nitrogen oxides on organic aerosol formation and the hydrophilic properties of the aerosols. This ...

De Gustibus Non Est Disputandum

The venerable admonition not to quarrel over tastes is commonly interpreted as advice to terminate a dispute when it has been resolved into a difference of tastes, presumably because there is no further room for rational persuasion. Tastes are the unchallengeable axioms of a man's behavior: he may properly (usefully) be criticized for inefficiency in satisfying his desires, but the desires them...