Literatura académica sobre el tema "Microorganismes – Modèles mathématiques"
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Artículos de revistas sobre el tema "Microorganismes – Modèles mathématiques"
Cazelles, B. y D. Fontvieille. "Modélisation d'un système lotique pollué par une charge organique : prise en compte de l'activité des microorganismes benthiques". Revue des sciences de l'eau 2, n.º 4 (12 de abril de 2005): 511–41. http://dx.doi.org/10.7202/705041ar.
Texto completoDUCROT, C., J. CHARLEY-POULAIN y J. M. AYNAUD. "Numéro hors série 2004 : Encéphalopathies spongiformes transmissibles animales -Sommaire et avant-propos". INRAE Productions Animales 17, HS (18 de diciembre de 2004). http://dx.doi.org/10.20870/productions-animales.2004.17.hs.3612.
Texto completoTesis sobre el tema "Microorganismes – Modèles mathématiques"
Lobry, Jean R. "Ré-évaluation du modèle de croissance de Monod : effet des antibiotiques sur l'énergie de maintenance". Lyon 1, 1991. http://www.theses.fr/1991LYO10134.
Texto completoAndré, Jean-Baptiste. "Niveaux de sélection chez les microparasites : virulence, coopération, mutation". Montpellier 2, 2003. http://www.theses.fr/2003MON20172.
Texto completoFothi, Abdellah. "Effets induits de la turbulence benthique sur les mécanismes de croissance du périphyton". Toulouse, INPT, 2002. http://www.theses.fr/2002INPT027H.
Texto completoCannavo, Patrice. "Variations saisonnières des activités respiratoire aérobie et dénitrifiante dans la zone non saturée du sol : expérimentation sur une parcelle agricole du Comtat Venaissin et modélisation". Avignon, 2003. http://www.theses.fr/2003AVIG0030.
Texto completoNitrate (NO3-) groundwater contamination, in addition to greenhouse gases emissions such as carbon dioxide (CO2) and nitrous oxide (N2O) are crucial environmental and agronomic problems. The goal of this work was to characterize during a 7-months period C and N dynamics coupled to microbial activities in the vadose zone, emphasizing notably the interest in taking into account the existing biological processes in the deep vadose zone. Thus, a soil profile situated in an arable field in the Comtat Venaissin (Velleron, 84) was studied. The vadose zone (almost 2. 5 m thick) was equipped for water, heat, solute and gas fluxes measurements, during an inter-cropping period, from corn harvesting and tillage with incorporation of maize residues (end of October 2001), to the next sowing (beginning of May 2002). Microbial analysis were performed in order to follow (1) the aerobic respiratory and denitrifying potential activities, and (2) heterotrophic and denitrifying micro-organisms. Results showed the strong environmental factors influence (rainfall, soil temperature, NO3- content, and dissolved organic carbon (DOC) quality) on microbial activities. In the deep vadose zone, the NO3- content was a limiting factor for the denitrifying activity, and the DOC quality was in part responsible of the aerobic respiratory activity seasonal variations. The biogeochemical processes, which occurred during the field experiment, were satisfactorily simulated by the PASTIS model. The addition of a new module for gas transport using the dusty gas theory allowed us to estimate correctly CO2 and N2O concentrations in the soil. The comparison model-experiment suggests to study the following elements: (1) to take into account the soil structure and to work at the aggregate scale, (2) to study the soil freezing effect on zymogenous biomass behaviour, and (3) to take into account the enzymatic activity, notably the N2O reductase enzymatic activity. These elements are really important in order to perform C and N amounts reaching the groundwater
Bensaker, Bachir. "Contribution à la modélisation et à l'identification d'un processus de croissance de micro-organismes marins (Dinophysis acuminata)". Le Havre, 1988. http://www.theses.fr/1988LEHA0002.
Texto completoVoelker, François. "Étude des réversions d'auxotrophie chez une souche de Corynebacterium glutamicum productrice de L-lysine : effets de l'environnement sur les cinétiques de production de révertants et de L-lysine et essai de modélisation". Compiègne, 1996. http://www.theses.fr/1996COMPD868.
Texto completoFavier, Lidia. "Etude cinétique et stoechiométrique de la croissance de Rhodospirillum rubrum en photobioréacteur". Clermont-Ferrand 2, 2004. http://www.theses.fr/2004CLF22538.
Texto completoColombié, Vincent. "Description de la production de spiramycine par Streptomyces ambofaciens : modélisation métabolique, simulation et capteur logiciel". Toulouse, INSA, 2005. http://www.theses.fr/2005ISAT0043.
Texto completoThe aim of this study is the development of a mathematical model which can describe a microorganism growth dynamic as well as its secondary metabolites productions. Eventually, this model might :identify and quantify the various steps of the fermentation (growth, macromolecular change, production) from on-line measurments during the process. Help to understand the behavior of overproducing strains by means of simulation. The analysis of a metabolic network which includes the central and secondary metabolism pathways led to a structure able to describe the growth dynamic with on-line measurements only. However it appeared impossible to predict the antibiotic production using the latter so the stoichiometric model has to be coupled to a phenomenological model the structure of which has to be defined experimentaly. The experimental study involved :the design of a chemically defined culture medium. The characterization of kinetic parameters during various nutrient limitations (nitrogen, carbon). The study of the effect of minimal glycolytic flux and anabolic activity on the antibiotic production. The identification of intracellular reserves formation and a correlation between their catabolism and the production. In the range of its metabolic limits defined experimentaly, the model was developed to describe the formation of intracellular polymers and coupled to a simple phenomenological model to describe the spiramycin production kinetic. Replacing symbolic input variables either by metabolic constraints or by on-line measurements, a simulator of the production and a software sensor able to determine the various phases of the culture on-line are respectively built
Aldarf, Mazen. "Culture sur milieux solides modèles de la croissance de Geotrichum candidum et de Penicillium camembertii : application à la maîtrise de l'affinage du camembert". Rennes 1, 2003. http://www.theses.fr/2003REN10056.
Texto completoDurot, Maxime. "Elucidation du métabolisme des microorganismes par la modélisation et l'interprétation des données d'essentialités de gènes : application au métabolisme de la bactérie Acinetobacter baylyi ADP1". Thesis, Evry-Val d'Essonne, 2009. http://www.theses.fr/2009EVRY0017/document.
Texto completoMicrobial metabolism has traditionally been investigated at two different scales: the finest involves characterizing individually each reaction occurring in the cell; the largest focuses on global cell physiology. While both scales have recently benefited from technological advances, combining them remains, however, especially complex as the global physiological behavior of a cell results from the coordinated action of a large network of reactions. Mathematical modeling approaches have yet shown recently that genome-scale metabolic models could help in linking both scales. In this thesis, we explore the use of such models to expand the knowledge of reactions with a specific type of high-level data: gene essentiality data, assessed using growth phenotypes of deletion mutants. We will use as model organism the bacterium Acinetobacter baylyi ADP1, for which a genome-wide collection of gene deletion mutants has recently been created. Following a presentation of the key steps and developments that have been required to reconstruct a global metabolic model of A. baylyi, we will show that confronting observed and predicted phenotypes highlight inconsistencies between the two scales. We will then show that a formal interpretation of these inconsistencies can guide model corrections and improvements to the knowledge of metabolism. We will illustrate this claim by presenting model corrections triggered by A. baylyi mutant phenotypes. Finally, we will introduce a method that automates the correction of inconsistencies caused by wrong associations between genes and reactions
Libros sobre el tema "Microorganismes – Modèles mathématiques"
Panikov, N. S. Microbial growth kinetics. London: Chapman & Hall, 1995.
Buscar texto completoJ, Hurst Christon, ed. Modeling the environmental fate of microorganisms. Washington, DC: American Society for Microbiology, 1991.
Buscar texto completoCapítulos de libros sobre el tema "Microorganismes – Modèles mathématiques"
SANAA, Moez y Laurent GUILLIER. "Modèles dose-réponse pour les dangers microbiologiques". En Évaluation des risques microbiologiques, 159–84. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9084.ch5.
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