Results 11 to 20 of about 123 (115)
Stability analysis for the phytoplankton-zooplankton model with depletion of dissolved oxygen and strong Allee effects [PDF]
Results in EngineeringThe photosynthetic activity of phytoplankton in the seas is responsible for an estimated 50–80 % of the world's oxygen generation. Both phytoplankton and zooplankton require some of this synthesized oxygen for cellular respiration.
Ahmed Ali +3 more
doaj +3 more sources
On Behaviour of a Host-vector Epidemic Model with Non-linear Incidence [PDF]
, 2012 In this paper we find the possible phase portraits and bifurcations for a general class of host-vector epidemic models with non-linear incidence function generalizing the Ross model.Key words: Epidemics; Non-linear incidence; Global analysis ...
S¨oderbacka, Gunnar +2 more
core +2 more sources
Analysis of a planar differential system arising from hematology [PDF]
, 2018 A complete analysis of a planar dynamic system arising from hematology is provided to confirm the conclusions of computer simulations. Existence and uniqueness for the Cauchy problem, boundedness of solutions and their asymptotic behavior to infinity are
PRECUP, Radu, PARAJDI, Lorand Gabriel
core +2 more sources
Stability of a secondary dengue viral infection model with multi-target cells
Alexandria Engineering Journal, 2022 Dengue is one of the vector-borne diseases spread in most parts of the world. The number of infected individuals is increased each year. This paper proposes a mathematical model describing the secondary dengue viral infection in micro-environment.
M.A. Alshaikh +2 more
doaj +1 more source
A mathematical model to study the spread of COVID-19 and its control in India
Computational and Mathematical Biophysics, 2023 In this article, a nonlinear mathematical model is proposed and analyzed to study the spread of coronavirus disease (COVID-19) and its control. Due to sudden emergence of a peculiar kind of infection, no vaccines were available, and therefore, the ...
Naresh Ram +3 more
doaj +1 more source
Analysis of a hyperbolic geometric model for visual texture perception [PDF]
, 2011 International audienceWe study the neural field equations introduced by Chossat and Faugeras to model the representation and the processing of image edges and textures in the hypercolumns of the cortical area V1.
Faugeras, Olivier +5 more
core +3 more sources
Dynamic of a nonautonomous two-species impulsive competitive system with infinite delays
Open Mathematics, 2019 In this paper, we consider a nonautonomous two-species impulsive competitive system with infinite delays. By the impulsive comparison theorem and some mathematical analysis, we investigate the permanence, extinction and global attractivity of the system,
He Mengxin, Li Zhong, Chen Fengde
doaj +1 more source
Computational and Mathematical Methods in Medicine, Volume 11, Issue 3, Page 201-222, 2010., 2010 A deterministic compartmental sex‐structured HIV/AIDS model for assessing the effects of homosexuals and bisexuals in heterosexual settings in which homosexuality and bisexuality issues have remained taboo is presented. We extend the model to focus on the effects of condom use as a single strategy approach in HIV prevention in the absence of any other ...
Noble Malunguza +3 more
wiley +1 more source
The Dynamics of an HIV/AIDS Model with Screened Disease Carriers
Computational and Mathematical Methods in Medicine, Volume 10, Issue 4, Page 287-305, 2009., 2009 The presence of carriers usually complicates the dynamics and prevention of a disease. They are not recognized as disease cases themselves unless they are screened and they usually spread the infection without them being aware. We argue that this has been one of the major causes of the spread of human immunodeficiency virus (HIV).
S. D. Hove-Musekwa, F. Nyabadza
wiley +1 more source
Controlo ótimo fracionário e aplicações biológicas [PDF]
, 2022 In this PhD thesis, we derive a Pontryagin Maximum Principle (PMP) for fractional optimal control problems and analyze a fractional mathematical model of COVID– 19 transmission dynamics.
Ndaïrou, Faïçal
core