Numérique et apprentissages : des décalages de perceptions entre élèves et enseignants

Métadonnées et XML. Des standards efficients de l'environnement numérique

Metadata, structured data sets about physical or digital resources, are a basic tool in digital curation. To assume their main functions, standard must be used, for metadata sets as for implementation formats. XML language is rightly the most important format for a lot of metadata standards. This document gives first a review of metadata functions and XML in context, describes main metadata set...

Relation entre le pouvoir toxique et le pouvoir antigene des toxines diphterique et tetanique

Introduction a l'etude de salmonella et des salmonelloses en Iran

Etude analytique de l'immunoprophylaxie de l'agalaxie contagieuse des chèvres et des moutons

Analyse numérique et réduction de réseaux

The algorithmic facet of euclidean lattices is a frequent tool in computer science and mathematics. It mainly relies on the LLL reduction, making worthwile efficiency improvements. Schnorr proved that the LLL algorithm can be speeded up if one computes approximations to the underlying Gram-Schmidt orthogonalisations. Without approximations, these computations dominate the cost of the reduction....