Results 11 to 20 of about 1,101 (159)

Cost-effective optimal control analysis of a COVID-19 transmission model incorporating community awareness and waning immunity

open access: yesComputational and Mathematical Biophysics, 2023
This article presents a cost-effective optimal control analysis of interventions applied to a S2EI2RS type deterministic compartmental model of COVID-19, considering community awareness and immunity loss. We introduce two time-dependent controls, namely,
Lamba Sonu, Srivastava Prashant K.
doaj   +1 more source

Optimal Control for a COVID-19 Model Accounting for Symptomatic and Asymptomatic

open access: yesComputational and Mathematical Biophysics, 2020
Building on an SEIR-type model of COVID-19 where the infecteds are further divided into symptomatic and asymptomatic, a system incorporating the various possible interventions is formulated.
Macalisang Jead M.   +3 more
doaj   +1 more source

Optimal control of a dengue epidemic model with vaccination [PDF]

open access: yes, 2011
We present a SIR+ASI epidemic model to describe the interaction between human and dengue fever mosquito populations. A control strategy in the form of vaccination, to decrease the number of infected individuals, is used.
Delfim F. M. Torres   +3 more
core   +2 more sources

A reaction-diffusion system to better comprehend the unlockdown: Application of SEIR-type model with diffusion to the spatial spread of COVID-19 in France

open access: yesComputational and Mathematical Biophysics, 2020
We wondered that if a reaction-diffusion model considering only the mean daily movement of susceptible, exposed and asymptomatic individuals was enough to describe the spread of the COVID-19 virus.
Mammeri Youcef
doaj   +1 more source

From ODE to Open Markov Chains, via SDE: an application to models for infections in individuals and populations

open access: yesComputational and Mathematical Biophysics, 2020
We present a methodology to connect an ordinary differential equation (ODE) model of interacting entities at the individual level, to an open Markov chain (OMC) model of a population of such individuals, via a stochastic differential equation (SDE ...
Esquível Manuel L.   +2 more
doaj   +1 more source

Bifurcation analysis of HIV infection model with cell-to-cell transmission and non-cytolytic cure

open access: yesComputational and Mathematical Biophysics, 2023
A mathematical model is proposed and discussed to study the effect of cell-to-cell transmission, the non-cytolytic process, and the effect of logistic growth on the dynamics of HIV in vivo.
Prakash Surya   +2 more
doaj   +1 more source

Mathematical Analysis of an Obesity Model with Eating Behaviors

open access: yes, 2020
Overweight is a social disease, which is transmitted through social networks. A mathematical model is proposed to simulate the dynamics of social obesity, where the structures of individual heterogeneity and overeating behaviors are incorporated.
Wendi Wang
semanticscholar   +1 more source

Global Stability for an SEIR Epidemiological Model with Varying Infectivity and Infinite Delay [PDF]

open access: yes, 2009
A recent paper (Math. Biosci. and Eng. (2008) 5:389-402) presented an SEIR model using an infinite delay to account for varying infectivity. The analysis in that paper did not resolve the global dynamics for R0 \u3e 1.
McCluskey, C. Connell
core   +2 more sources

Proof of a conjecture of N. Konno for the 1D contact process [PDF]

open access: yes, 2005
Consider the one-dimensional contact process. About ten years ago, N. Konno stated the conjecture that, for all positive integers $n,m$, the upper invariant measure has the following property: Conditioned on the event that $O$ is infected, the events $\{$
Berg, J. van den   +2 more
core   +3 more sources

Existence and uniqueness of periodic orbits in a discrete model on Wolbachia infection frequency

open access: yesAdvances in Nonlinear Analysis, 2021
In this paper, we study a discrete model on Wolbachia infection frequency. Assume that a periodic and impulsive release strategy is implemented, where infected males are released during the first N generations with the release ratio α, and the release is
Zheng Bo, Yu Jianshe
doaj   +1 more source

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