Academic literature on the topic 'Processus épidémique'
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Journal articles on the topic "Processus épidémique"
Fortineau, Jacques. "Modification du cadre thérapeutique dans un contexte épidémique." Perspectives Psy 59, no. 4 (October 2020): 335–38. http://dx.doi.org/10.1051/ppsy/202059335.
Full textDost, M., O. Husson, A. L. Sberna, L. Oliveri, and C. Gauthier. "Intérêt d’outils digitaux dans le maintien d’un parcours de soins obésité dans le contexte épidémique Covid-19. Retour de l’expérimentation article 51 Espace Médical Nutrition et Obésité." Obésité 15, no. 3-4 (July 2020): 60–66. http://dx.doi.org/10.3166/obe-2021-0098.
Full textDrogrey, M., J. Pernet, and P. Hausfater. "Retour d’expérience sur la réorganisation d’un service d’urgence de centre hospitalo-universitaire en réponse à l’épidémie de Covid-19." Annales françaises de médecine d’urgence 10, no. 4-5 (September 2020): 233–42. http://dx.doi.org/10.3166/afmu-2020-0274.
Full textStephenson, Peter H. "Le sida, la syphilis et la stigmatisation. La genèse des politiques et des préjugés." Anthropologie et Sociétés 15, no. 2-3 (September 10, 2003): 91–104. http://dx.doi.org/10.7202/015176ar.
Full textLORET, J. F., S. COURTOIS, O. SCHLOSSER, S. ITOIZ, A. PETRAU, M. FITTIPALDI, R. MURTULA, and X. LITRICO. "Covid-19 : Quelle contribution des opérateurs à la lutte contre la pandémie ?" Techniques Sciences Méthodes, COVID-19 (December 17, 2021): 31–42. http://dx.doi.org/10.36904/tsm/2021c1931.
Full textMansotte, F., G. Dejean, S. Coquet, G. Gault, P. Beaudeau, and C. Galey. "Retour d’expérience sur une épidémie de gastro-entérites aiguës d’origine hydrique en Gironde, juillet 2010." Techniques Sciences Méthodes, no. 4 (April 2017): 28–41. http://dx.doi.org/10.1051/tsm/20174028.
Full textKanyou, Claude, Etienne Kouokam, and Yves Emvudu. "Epidemic threshold : A new spectral and structural approach of prediction." Revue Africaine de Recherche en Informatique et Mathématiques Appliquées Volume 38 - Special issue... (December 5, 2023). http://dx.doi.org/10.46298/arima.11186.
Full textZhang, Rui. "L’an vingt-deux de l’ère Jian’an et au-delà." Hommage au Maître hétéroclite 16 (2024). http://dx.doi.org/10.4000/11z8i.
Full textShitindo, Mercury, and Farah Nabil. "Lignes directrices pour l'examen éthique des protocoles de recherche en santé mentale dans une perspective culturellement sensible." African Journal of Bioethics 02, no. 1 (2023). http://dx.doi.org/10.58177/ajb240523.
Full textDissertations / Theses on the topic "Processus épidémique"
Klai, Amira. "Clostridium difficile : étude du processus de colonisation et d'hypervirulence de la souche épidémique 027." Phd thesis, Université Paris Sud - Paris XI, 2012. http://tel.archives-ouvertes.fr/tel-00922985.
Full textBarketi-Klai, Amira. "Clostridium difficile : étude du processus de colonisation et d’hypervirulence de la souche épidémique 027." Thesis, Paris 11, 2012. http://www.theses.fr/2012PA114844/document.
Full textClostridium difficile is an enteropathogenic bacterium that causes post-antibiotic nosocomial diarrhea and pseudomembranous colitis. During the last decade, the incidence and the severity of C. difficile infections have significantly increased in America and Europe. This evolution seems to be related to the emergence and to the rapid dissemination of a particularly virulent clone of PCR-ribotype 027. The main virulence factors of C. difficile are the TcdA and TcdB cytotoxins which are responsible for intestinal lesions. However, the intestinal colonization by the bacterium is considered as an indispensible step for infection.To better understand the hypervirulence mechanisms of strain 027, we focused on the study of intestinal colonization process of this strain compared to the colonization process of the non-epidemic strain 630Δerm. First, we studied the role of the fibronectin binding protein FbpA. In vitro and in vivo characterization of a mutant FbpA showed the involvement of this protein in the colonization process of the non-epidemic strain 630Δerm. The difficulty of obtaining a mutant in the epidemic strain R20291 027 does not allow us to compare the adhesive properties of FbpA between the two strains.In a second step, we studied the characteristics of flagellar proteins FliC, FliD, FlgE and MotB. We showed that the flagella have a role in the adhesion and colonization of strain 027 and that this role is less important in strain 630Δerm. We also showed that flagella are involved in other cellular processes than adhesion and colonization. A transcriptomic study of a FliC mutant in 027 R20291 shows that flagellin is also involved in toxin production, sporulation and in the adaptation of bacteria to stress conditions. Further study should be performed to better understand the regulation system that governs these different cellular processes. Finally, we performed a transcriptomic analysis of the kinetic of in vivo colonization of the 027 R20291 strain. The study revealed a very early expression of toxin and sporulation genes during the first stages of the infection process. This analysis also allowed us to identify some genes, specific to 027 strains, which appeared regulated during the infection process. These genes could be involved in the virulence of C. difficile 027 strains and could provide new issues of study to better understand C. difficile virulence
Philippon, Solenne. "De la veille sanitaire à l'urgence épidémique : méningite cérébrospinale e système de santé au Mali : une approche géographique." Paris 1, 2006. http://www.theses.fr/2006PA010687.
Full textAmiri, Arij. "Ruptures, singularités : détection et estimation." Electronic Thesis or Diss., Université de Lille (2022-....), 2022. http://www.theses.fr/2022ULILB030.
Full textThis Ph.D. thesis gathers some works concerning change-point problems for stochastic processes. In Part one, we are interested in the problem of the estimation, from [dollar]n[dollar] independent observations of an inhomogeneous Poisson process, of the location of what we call a smooth change-point (a point in which the intensity function of the process switches from one level to another smoothly, but over such a small interval, that its length [dollar]delta_n[dollar] can be considered as converging to~[dollar]0[dollar]). We show that in the case where [dollar]delta_n[dollar] goes to zero slower than [dollar]1/n[dollar] (slow case), our model is locally asymptotically normal (though with an unusual rate), and that in the case where [dollar]delta_n[dollar] goes to zero faster than [dollar]1/n[dollar] (fast case), our model is non-regular and behaves like a classic change-point model. All these results are obtained using the likelihood ratio analysis method of Ibragimov and Khasminskii, which equally yields the convergence of moments of the considered estimators. However, in order to apply this method in the fast case, we first had to adapt it to the topology [dollar]M_1[dollar] on the Skorokhod space of càdlàg functions, as well as to develop some tools for the study of convergence of functions in this topology. The Part two deals with the detection of a change in the Hölder regularity. We study the detection of an epidemic change in the regularity of an [dollar]n[dollar]-sample of i.i.d. random functions with Hölder regularity [dollar]alpha[dollar] under null hypothesis. Under the alternative hypothesis, a segment of the sample of an unknown location and length [dollar]l^star
Machens, Anna. "Processus épidémiques sur réseaux dynamiques." Thesis, Aix-Marseille, 2013. http://www.theses.fr/2013AIXM4066/document.
Full textIn this thesis we contribute to provide insights into questions concerning dynamic epidemic processes on data-driven, temporal networks. In particular, we investigate the influence of data representations on the outcome of epidemic processes, shedding some light on the question how much detail is necessary for the data representation and its dependence on the spreading parameters. By introducing an improvement to the contact matrix representation we provide a data representation that could in the future be integrated into multi-scale epidemic models in order to improve the accuracy of predictions and corresponding immunization strategies. We also point out some of the ways dynamic processes are influenced by temporal properties of the data
Kubasch, Madeleine. "Approximation of stochastic models for epidemics on large multi-level graphs." Electronic Thesis or Diss., Institut polytechnique de Paris, 2024. https://theses.hal.science/tel-04717689.
Full textWe study an SIR model with two levels of mixing, namely a uniformly mixing global level, and a local level with two layers of household and workplace contacts, respectively. More precisely, we aim at proposing reduced models which approximate well the epidemic dynamics at hand, while being more prone to mathematical analysis and/or numerical exploration.We investigate the epidemic impact of the workplace size distribution. Our simulation study shows that if the average workplace size is kept fixed, the variance of the workplace size distribution is a good indicator of its influence on key epidemic outcomes. In addition, this allows to design an efficient teleworking strategy. Next, we demonstrate that a deterministic, uniformly mixing SIR model calibrated using the epidemic growth rate yields a parsimonious approximation of the household-workplace model.However, the accuracy of this reduced model deteriorates over time and lacks theoretical guarantees. Hence, we study the large population limit of the stochastic household-workplace model, which we formalize as a measure-valued process with continuous state space. In a general setting, we establish convergence to the unique deterministic solution of a measure-valued equation. In the case of exponentially distributed infectious periods, a stronger reduction to a finite dimensional dynamical system is obtained.Further, in order to gain a finer insight on the impact of the model parameters on the performance of both reduced models, we perform a sensitivity study. We show that the large population limit of the household-workplace model can approximate well the epidemic even if some assumptions on the contact network are relaxed. Similarly, we quantify the impact of epidemic parameters on the capacity of the uniformly mixing reduced model to predict key epidemic outcomes.Finally, we consider density-dependent population processes in general. We establish a many-to-one formula which reduces the typical lineage of a sampled individual to a time-inhomogeneous spinal process. In addition, we use a coupling argument to quantify the large population convergence of a spinal process
Kissami, Abdelghani. "Problèmes d'urnes et processus épidémiques :modélisation et résultats asymptotiques." Doctoral thesis, Universite Libre de Bruxelles, 1993. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/212812.
Full textMontagnon, Pierre. "Dynamiques de populations et processus épidémiques sur des réseaux d'échanges." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLX025/document.
Full textThis thesis discusses the mathematical modelling of population dynamics on cattle trade networks coupled with epidemic processes.We first consider metapopulation models taking into account local demographic dynamics (immigration, births, deaths and animal movements due to trade between the nodes of the network). Recurrence and ergodicity criteria are stated for Markovian models with deterministic local dynamics and stochastic inter-nodal transferts, for a multitype branching process with immigration and for a jump process with logistic rates on a finite state space. In these last two cases, we study scaling limits of processes over finite time intervals and their stability over time scales that are exponentials of the scaling parameter.In a second part, we define a coupling of the jump population models considered with an SIR (Susceptible --- Infected --- Removed) epidemic dynamics. The resulting process accounts for local infectious contacts and pathogen propagation on the network due to movements of infective animals. We approximate the epidemic process by a multitype branching process on finite time intervals, then provide an iterative method to compute the probability of a emph{major epidemic outbreak}, defined as the event of survival of the approximating branching process. We then show that conditionally on a major epidemic outbreak and under a stability condition for an endemic equilibrium of the associated dynamical system, the extinction time and final size of the epidemic grow at least exponentially with respect to the scaling parameter of the model.We finally perform a numerical application of the theoretical results obtained on the SIR model coupled with logistic population dynamics. Calibrating the demographical model parameters on the 2015 Finistère cattle trade network, we compute indicators of the epidemic vulnerability of the network induced by individual holdings. We detail a protocol to assess the relative efficiency of three types of control strategies (screening at importation, isolation and vaccination) targeting the holdings identified as critical for the computed indicators
Temine, Laura. "Modélisation déterministe et stochastique de processus épidémiques : application à la résistance aux antibiotiques." Paris 6, 2003. http://www.theses.fr/2003PA066491.
Full textBouzalmat, Ibrahim. "Modélisation probabiliste de la dynamique de transmission de la fièvre typhoïde à Mayotte avec étude de risques épidémiques." Electronic Thesis or Diss., Université de Montpellier (2022-....), 2023. http://www.theses.fr/2023UMONS064.
Full textThe aim of this thesis manuscript is to study the transmission of typhoid fever in Mayotte using mathematical modelling approaches. We first introduce the context of our study, the associated issues, and the objectives of the thesis. A state-of-the-art review on mathematical modeling of typhoid fever transmission is presented, highlighting the specificity of our approach. We propose an initial model in two versions, deterministic and stochastic, to describe the transmission dynamics of the disease in Mayotte. We explore the behavior of the model through numerical simulations in different scenarios, highlighting key factors of transmission. However, due to the limitations of the available dataset, we propose a simplified stochastic model and a parametric estimation method. This approach enables us to fit the model to the available data and to estimate the key characteristics of typhoid fever transmission in Mayotte. In enriching our model, we are introducing new extensions. We include a compartment for individuals exposed, taking into account the incubation period of the disease. The theoretical properties of this model are studied and illustrated by numerical simulations. In addition, we propose a parameter estimation methodology adapted to this new model, and numerical simulations have been carried out to evaluate the performance of our estimation approach. We then examine the impact of rainfall on the transmission of typhoid fever in Mayotte, using publicly available precipitation data. We identify rainfall seasonality and estimate model parameters under different regimes. The results highlight the importance of this meteorological variable in the spread of the epidemic.This manuscript opens up research perspectives, such as the extension of the model to other infectious diseases present in Mayotte and its generalisation to other territories. This work will contribute to a better understanding and management of infectious diseases in Mayotte and other similar regions
Book chapters on the topic "Processus épidémique"
HENRION-LATCHE, Johanna. "Accompagnement à la résilience et acceptabilité sociale." In Les épidémies au prisme des SHS, 55–64. Editions des archives contemporaines, 2022. http://dx.doi.org/10.17184/eac.5990.
Full textCEA, Roberto. "Politique de santé entre concurrence scientifique et pouvoir des experts." In Les épidémies au prisme des SHS, 109–14. Editions des archives contemporaines, 2022. http://dx.doi.org/10.17184/eac.5996.
Full textFRISCH, Muriel. "Hybrider sans déshumaniser dans les métiers de l’humain et les recherches en sciences de l’éducation et de la formation pendant le confinement." In Les épidémies au prisme des SHS, 239–50. Editions des archives contemporaines, 2022. http://dx.doi.org/10.17184/eac.6010.
Full textConference papers on the topic "Processus épidémique"
Buzun, Andrii-Igor. "LA « LYSOGENIE » DU VIRUS DE LA PESTE PORCINE AFRICAINE COMME UN MODÈLE COMMUTATION DE D`UN PROCESSUS ÉPIDÉMIQUE À UN PROCESSUS ENDÉMIQUE." In DÉBATS SCIENTIFIQUES ET ORIENTATIONS PROSPECTIVES DU DÉVELOPPEMENT SCIENTIFIQUE. European Scientific Platform, 2023. http://dx.doi.org/10.36074/logos-21.07.2023.15.
Full textDarrault-Harris, Ivan. "De la santé à la maladie et vice-versa : des procès de transition d’un état à l’autre." In Actes du congrès de l’Association Française de Sémiotique. Limoges: Université de Limoges, 2024. http://dx.doi.org/10.25965/as.8411.
Full textReports on the topic "Processus épidémique"
Jauvin, Nathalie, François Aubry, Francis Ethridge, Isabelle Feillou, Éric Gagnon, Andrew Freeman, Nancy Côté, et al. Recherche-action visant le développement d’un modèle d’intervention préventive en SST par et pour les préposés aux bénéficiaires en CHSLD. IRSST, September 2024. http://dx.doi.org/10.70010/nkup8051.
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