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Les E. coli restent de loin l‘espèce bactérienne dominante dans les bactériuries lors des infections urinaires et des pyélonéphrites aiguës (PNA) en pédiatrie. La sensibilité aux antibiotiques des 506 souches d’E. coli urinaires isolées lors d’un premier épisode infectieux à l’admission à l’hôpital des Enfants de Toulouse entre le 1 juin 2002 et le 1 juin 2003 a été analysée. Alors que 53 % des souches...
Les souches d'Escherichia coli isolees lors de pyelonephrites aigues (PNA) produisent des facteurs de virulence qui contribuent a leur pathogenicite. La presence de six facteurs de virulence a ete recherchee dans 200 souches d'E. coli isolees de PNA chez l'enfant par amplification genique. Les amorces utilisees permettaient d'amplifier les genes des adhesines fimbriales (pap et sfa), de deux toxines,...
Neural networks may provide a user-friendly alternative or supplement to complex physically based models for soil erosion prediction for some study areas. The purpose of this study was to investigate the applicability of using neural networks to quantitatively predict soil loss from natural runoff plots. Data from 2879 erosion events from eight locations in the United States were used. Neural networks...
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