Results 21 to 30 of about 1,109 (159)

Global asymptotic properties for a Leslie-Gower food chain model [PDF]

open access: yesMathematical Biosciences and Engineering 6:585-590 (2009), 2011
We study global asymptotic properties of a continuous time Leslie-Gower food chain model. We construct a Lyapunov function which enables us to establish global asymptotic stability of the unique coexisting equilibrium state.
arxiv   +1 more source

A STOCHASTIC MODEL FOR HIV EPIDEMIC WITH TREATMENT AND INFLOW OF INFECTIVES

open access: yesInternational Journal of Apllied Mathematics, 2018
We present a stochastic model of the population dynamics of HIV/AIDS with treatment and inflow of infectives. Starting with a deterministic compartmental model, each of the four ordinary differential equations are stochastically perturbed.
M. Nsuami, P. Witbooi
semanticscholar   +1 more source

Efficacy and safety of sarolaner against generalized demodicosis in dogs in European countries: a non‐inferiority study

open access: yesVeterinary Dermatology, Volume 29, Issue 3, Page 203-e72, June 2018., 2018
Background Treatment of canine demodicosis can be challenging; new treatments are always being sought. Objective The efficacy of sarolaner was evaluated in comparison with a moxidectin/imidacloprid topical product against generalized demodicosis in dogs in a randomized, single‐masked, multi‐centre field study.
Csilla Becskei   +2 more
wiley   +1 more source

Parameter Estimation from ICC curves [PDF]

open access: yesJournal of Biological Dynamics 15, 195-212 (2021), 2020
Incidence vs Cumulative Cases (ICC) curves are introduced and shown to provide a simple framework for parameter identification in the case of the most elementary epidemiological model, consisting of susceptible, infected, and removed compartments. This novel methodology is used to estimate the basic reproduction ratio of recent outbreaks, including the
arxiv   +1 more source

How to Obtain Long Term Projections for Smoking Behaviour: A Case Study in the Dutch Population

open access: yesComputational and Mathematical Methods in Medicine, Volume 10, Issue 2, Page 155-164, 2009., 2009
A state‐transition model is presented to project the prevalence rates of never, current and former smokers within the Dutch population. Changes are determined by the transition rates among these three classes: start rates, quit rates and relapse rates. Both the initial prevalence rates and transition rates are calculated from cross‐sectional data using
Maurizio Capannesi   +3 more
wiley   +1 more source

A surrogate Bayesian framework for a SARS-CoV-2 data driven stochastic model

open access: yesComputational and Mathematical Biophysics, 2022
Dynamic compartmentalized data (DCD) and compartmentalized differential equations (CDEs) are key instruments for modeling transmission of pathogens such as the SARS-CoV-2 virus.
Ganesh M., Hawkins S. C.
doaj   +1 more source

The Dynamics of an HIV/AIDS Model with Screened Disease Carriers

open access: yesComputational 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

Optimal Control for a Tuberculosis Model with Exogenous Reinfection under the Influence of Stigma

open access: yesComputational and Mathematical Biophysics, 2022
Often described as the world’s most deadly infectious disease, Tuberculosis remains a serious health threat in many parts of the world, especially in the developing countries.
Liguarda Remilou   +2 more
doaj   +1 more source

Cross-entropy method in application to SIRC model [PDF]

open access: yeshttps://www.mdpi.com/1999-4893/13/11/281, 2020
The study considers the usage of a probabilistic optimization method called Cross-Entropy (CE). This is the version of the Monte Carlo method created by Reuven Rubinstein (1997). It was developed in the context of determining rare events. Here we will present the way in which the CE method can be used for problems of optimization of epidemiological ...
arxiv   +1 more source

Analysis of an age‐dependent SI epidemic model with disease‐induced mortality and proportionate mixing assumption: the case of vertically transmitted diseases

open access: yesJournal of Applied Mathematics, Volume 2004, Issue 3, Page 235-254, 2004., 2004
An SI epidemic model for a vertically as well as horizontally transmitted disease is investigated when the fertility, natural mortality, and disease‐induced mortality rates depend on age and the force of infection corresponds to a special form of intercohort transmission called proportionate mixing.
M. El-Doma
wiley   +1 more source

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