Nearly 700 standard plate count (SPC) bacteria were isolated from drinking water and untreated surface water and identified according to a scheme developed to permit the rapid, simple classification of microorganisms to genus, species, or group. Actinomycetes and Aeromonas species were the two most common groups of SPC bacteria in chlorinated distribution water. Aeromonas spp. and Enterobacter ...

Résumé : Avec l'adoption massive des Technologies de l'Information et de la Communication (TIC) et la dilution des liens sociaux que connait notre société, Internet s’est imposé comme un nouveau lieu de soutien social. Ainsi, on voit des personnes connaissant des situations difficiles comme la maladie s'apporter du soutien en termes de connaissances, de réconfort, voire d'aide tangible au trave...

Ce rapport introduit les structures composites dans le contexte du profile OMEGA UML pour représenter la structure hiérarchique des systèmes complexes, comme les systèmes temps-réel embarqués. Comme la norme UML est sous-spécifiée pour préserver la généralité du langage, on se propose de définir un ensemble expressif de notions et de r` egles pour la bonne modélisation et cohérence de structure...

  Background: The sale of food by street vendors is an activity of economic, sanitary, and nutritional importance, but these foods can pose a high risk to the health of consumers in inadequate conditions of preparation and storage. The aim of this study was to investigate the preparation conditions and the hygienic-sanitary quality of food sold by street vendors in the vicinity of four campuse...

— We present a new method for constructing genus 2 curves over a finite field Fn with a given number of points on its Jacobian. This method has important applications in cryptography, where groups of prime order are used as the basis for discrete-log based cryptosystems. Our algorithm provides an alternative to the traditional CM method for constructing genus 2 curves. For a quartic CM field K ...

A new neural network application for non-linear state control is described. One neural network is modelled to form a Kalmann predictor and trained to act as an optimal state observer for a non-linear process. Another neural network is modelled to form a state controller and trained to produce a minimum variance controller for the non-linear process. After training, tuning possibilities for the ...

INTRODUCTION Contaminated sponges might lead to cross-contamination in kitchens since they can transfer microorganisms to surfaces where microorganisms can survive for hours or days and contaminate food. The main objective of this study was to evaluate the transfer and the survival of bacteria from kitchen sponges to surfaces of AISI 316 stainless steel and polyethylene. METHODOLOGY Twenty-fo...