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Ramsès Djidjou-Demasse

Chargé de Recherche  IRD affecté au laboratoire MIVEGEC à Montpellier.

Mes travaux portent sur l'analyse Mathématique et la Modélisation de systèmes complexes (ou non), avec un accent particulier sur les Systèmes Dynamiques. Les applications résultant de ces travaux concernent (mais pas que) l'épidémiologie, l'évolution des maladies infectieuses et l'écologie. 

Journal articles18 documents

  • Ramsès Djidjou-Demasse, Samuel Alizon, Mircea Sofonea. Within-host bacterial growth dynamics with both mutation and horizontal gene transfer. Journal of Mathematical Biology, Springer Verlag (Germany), 2021, ⟨10.1007/s00285-021-01571-9⟩. ⟨hal-02500420⟩
  • Quentin Richard, Samuel Alizon, Marc Choisy, Mircea Sofonea, Ramsès Djidjou-Demasse. Age-structured non-pharmaceutical interventions for optimal control of COVID-19 epidemic. PLoS Computational Biology, Public Library of Science, In press, ⟨10.1101/2020.06.23.20138099⟩. ⟨hal-02879512v2⟩
  • Jean-Baptiste Burie, Ramsès Djidjou-Demasse, Arnaud Ducrot. Slow convergence to equilibrium for an evolutionary epidemiology integro-differential system. Discrete and Continuous Dynamical Systems - Series B, American Institute of Mathematical Sciences, 2020, 25 (6), pp.2223-2243. ⟨10.3934/dcdsb.2019225⟩. ⟨hal-02888796⟩
  • Gbenga Abiodun, Babatope. Adebiyi, Rita Abiodun, Olanrewaju Oladimeji, Kelechi Oladimeji, et al.. Investigating the Resurgence of Malaria Prevalence in South Africa Between 2015 and 2018: A Scoping Review. The Open Public Health Journal, 2020, 13 (1), pp.119-125. ⟨10.2174/1874944502013010119⟩. ⟨hal-02597335⟩
  • Ramsès Djidjou-Demasse, Gbenga Abiodun, Abiodun Adeola, Joel Botai. Development and analysis of a malaria transmission mathematical model with seasonal mosquito life‐history traits. Studies in Applied Mathematics, Wiley-Blackwell, 2019, ⟨10.1111/sapm.12296⟩. ⟨hal-02450371⟩
  • Jean-Baptiste Burie, Ramsès Djidjou-Demasse, Arnaud Ducrot. Slow convergence to equilibrium for an evolutionary epidemiology integro-differential system. Discrete and Continuous Dynamical Systems - Series B, American Institute of Mathematical Sciences, 2019, 22 (11), ⟨10.3934/dcdsb.2019225⟩. ⟨hal-02306565⟩
  • Gbenga Abiodun, Olusola Makinde, Abiodun Adeola, Kevin Njabo, Peter Witbooi, et al.. A Dynamical and Zero-Inflated Negative Binomial Regression Modelling of Malaria Incidence in Limpopo Province, South Africa. International Journal of Environmental Research and Public Health, MDPI, 2019, 16 (11), pp.2000. ⟨10.3390/ijerph16112000⟩. ⟨hal-02450365⟩
  • A. Rezgui, J. Vallance, A. Ben Ghnaya-Chakroun, E. Bruez, M. Dridi, et al.. Study of Lasidiodiplodia pseudotheobromae, Neofusicoccum parvum and Schizophyllum commune, three pathogenic fungi associated with the Grapevine Trunk Diseases in the North of Tunisia. European Journal of Plant Pathology, Springer Verlag, 2018, 152 (1), pp.127-142. ⟨10.1007/s10658-018-1458-z⟩. ⟨hal-02450374⟩
  • Jean-Baptiste Burie, R Djidjou-Demasse, Arnaud Ducrot. Asymptotic and transient behaviour for a nonlocal problem arising in population genetics. European Journal of Applied Mathematics, Cambridge University Press (CUP), In press, ⟨10.1017/S0956792518000487⟩. ⟨hal-01874125⟩
  • Ramsès Emeric Djidjou Demasse, Benoit Moury, Frédéric Fabre. Mosaics often outperform pyramids: insights from a model comparing strategies for the deployment of plant resistance genes against viruses in agricultural landscapes. New Phytologist, Wiley, 2017, 216 (1), pp.239-253. ⟨10.1111/nph.14701⟩. ⟨hal-01604528⟩
  • Ramsès Djidjou Demasse, Arnaud Ducrot, Frédéric Fabre. Steady state concentration for a phenotypic structured problem modeling the evolutionary epidemiology of spore producing pathogens. Mathematical Models and Methods in Applied Sciences, World Scientific Publishing, 2017, 27 (2), pp.385-426. ⟨10.1142/S0218202517500051⟩. ⟨hal-01604796⟩
  • Ramsès Djidjou Demasse, Jean-Jules Tewa, Samuel Bowong, Yves Emvudu. Optimal control for an age-structured model for the transmission of hepatitis B. Journal of Mathematical Biology, Springer Verlag (Germany), 2016, 73 (2), pp.305-333. ⟨10.1007/s00285-015-0952-6⟩. ⟨hal-02450359⟩
  • P. Tchinda Mouofo, R. Djidjou Demasse, J. J. Tewa, M. A. Aziz-Alaoui. Bifurcation Analysis and Optimal Harvesting of a Delayed Predator–Prey Model. International journal of bifurcation and chaos in applied sciences and engineering , World Scientific Publishing, 2015, 25 (01), pp.1550012. ⟨10.1142/S0218127415500121⟩. ⟨hal-02304508⟩
  • Ramses Djidjou Demasse, Jean Jules Tewa, Samuel Bowong. Analysis of an Age-structured SIL model with demographics process and vertical transmission. Revue Africaine de la Recherche en Informatique et Mathématiques Appliquées, INRIA, 2014, 17, pp.23-52. ⟨hal-01300058⟩
  • Ramses Demasse, Arnaud Ducrot. An age-structured within-host model for multi-strain malaria infections. SIAM Journal on Applied Mathematics, Society for Industrial and Applied Mathematics, 2013, pp.572--593. ⟨hal-00992786⟩
  • Yves Emvudu, Ramses Djidjou Demasse, Dany Djeudeu. Optimal control using state-dependent Riccati equation of lost of sight in a tuberculosis model. Computational and Applied Mathematics, Springer Verlag, 2013, 32 (2), pp.191-210. ⟨10.1007/s40314-013-0002-1⟩. ⟨hal-02450362⟩
  • Jean Jules Tewa, Ramses Djidjou Demasse, Samuel Bowong. Predator-prey model with prey harvesting, Holling response function of type III and SIS disease. BIOMATH, Biomath Forum, 2012, 1 (2), ⟨10.11145/j.biomath.2012.10.231⟩. ⟨hal-02450368⟩
  • Yves Emvudu, Ramses Demasse, Dany Djeudeu. Optimal Control of the Lost to Follow Up in a Tuberculosis Model. Computational and Mathematical Methods in Medicine, Hindawi Publishing Corporation, 2011, 2011, pp.1-12. ⟨10.1155/2011/398476⟩. ⟨hal-02450354⟩

Conference papers1 document

  • Ramsès Djidjou Demasse, A. Ducrot, Jean-Baptiste Burie, François Delmotte, Frédéric Fabre. Gestion durable des résistances de la vigne au mildiou : la modélisation mathématique à la rescousse. 13. Journée technique du CIVB, Conseil Interprofessionnel des Vins de Bordeaux (CIVB). FRA., Feb 2017, Bordeaux, France. ⟨hal-02787146⟩

Poster communications1 document

  • Ramsès Emeric Djidjou Demasse, Benoit Moury, Frédéric Fabre. Mosaics of plant disease resistance genes are a more versatile means of achieving disease control than pyramids in most agricultural landscapes. 10. Conférence de la Société française de phytopathologie, May 2017, Malo-les-Bains, France. 2017, Deepen knowledge in plant pathology for innovative agro-ecology. ⟨hal-02733690⟩

Preprints, Working Papers, ...7 documents

  • Ramsès Djidjou-Demasse, Arnaud Ducrot, Nicole Mideo, Gaëtan Texier. Understanding dynamics of Plasmodium falciparum gametocytes production: Insights from an age-structured model. 2020. ⟨hal-03030234⟩
  • Quentin Richard, Marc Choisy, Thierry Lefèvre, Ramsès Djidjou-Demasse. Human-vector malaria transmission model structured by age, time since infection and waning immunity. 2020. ⟨hal-03090649⟩
  • R Djidjou-Demasse, Y. Michalakis, M Choisy, M. T. Sofonea, S. Alizon. Optimal COVID-19 epidemic control until vaccine deployment. 2020. ⟨hal-02533223⟩
  • Ramsès Djidjou-Demasse, Christian Selinger, Mircea Sofonea. Épidémiologie mathématique & modélisation de la pandémie de COVID-19 : enjeux et diversité. 2020. ⟨hal-02924338⟩
  • V Madelain, C Passaes, A. Millet, V. Avettand-Fenoel, Ramsès Emeric Djidjou Demasse, et al.. Modeling SIV kinetics supports that cytotoxic response drives natural control and unravels heterogeneous populations of infected cells. 2020. ⟨pasteur-02865372⟩
  • Mircea Sofonea, Bastien Reyné, Baptiste Elie, Ramsès Djidjou-Demasse, Christian Selinger, et al.. Epidemiological monitoring and control perspectives: application of a parsimonious modelling framework to the COVID-19 dynamics in France. 2020. ⟨hal-02619546⟩
  • Mboya Ba, Ramsès Djidjou-Demasse, Mountaga Lam, Jean-Jules Tewa. Optimal intervention strategies of staged progression HIV infections through an age-structured model with probabilities of ART drop out. 2019. ⟨hal-02357239⟩