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
On a stochastic epidemic SIR model with non-homogeneous population: a toy model for HIV
Open MathematicsIn this paper, we generalise a simple discrete-time stochastic SIR-type model introduced by Tuckwell and Williams. The SIR model by Tuckwell and Williams assumes a homogeneous population, a fixed infectious period, and a strict transition from ...
Rovira Carles
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Effect of Vaccination to COVID-19 Disease Progression and Herd Immunity
Computational and Mathematical Biophysics, 2021 A mathematical model of COVID-19 with a delay-term for the vaccinated compartment is developed. It has parameters accounting for vaccine-induced immunity delay, vaccine effectiveness, vaccination rate, and vaccine-induced immunity duration.
Caga-anan Randy L. +5 more
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The effect of changing COVID-19 restrictions on the transmission rate in a veterinary clinic
Infectious Disease Modelling, 2023 With the declaration of the COVID-19 pandemic by the World Health Organization on March 11, 2020, the University of Tennessee College of Veterinary Medicine (UTCVM), like other institutions, restructured their services to reduce the potential spread of ...
Lee Spence +6 more
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Mathematical Models for the Prevention and Management of Cereal Crop Diseases: A Systematic Review
Journal of Applied Mathematics, Volume 2026, Issue 1, 2026.Mathematical modeling plays an important role in understanding and managing diseases that threaten cereal crop production worldwide. This systematic review, conducted in accordance with PRISMA guidelines, examines mathematical models developed for the prevention and management of diseases affecting maize, rice, wheat, barley, and sorghum.
Furaha Michael Chuma, Deli Zhang
wiley +1 more source
Regression to the mean in regression discontinuity design: bias and sensitivity analysis
Journal of Causal InferenceWhen making causal inferences from observational data, researchers must consider the effects of confounding. In a regression discontinuity design (RDD), individuals receive a treatment based on whether they score below or above a threshold value measured
Karmakar Bikram
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Curtailing the spread of drug-abuse and violence co-menace: An optimal control approach
Alexandria Engineering Journal, 2022 This work presents an optimal control of intervention strategies for a drug abuse and violence co-menace model considering a mass campaign against drug abuse, a mass campaign against violence, effective policing and rehabilitation of drug-abusing and ...
Abdulfatai Atte Momoh +3 more
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Stochastic Modeling and Analysis of Hepatitis B Virus Dynamics Under Transportation and Lévy Noise
Journal of Applied Mathematics, Volume 2026, Issue 1, 2026.Hepatitis B virus (HBV) remains a global health threat, especially under the influence of human mobility and environmental uncertainty. This paper proposes a stochastic SVAZR epidemic model that incorporates transportation dynamics and Lévy noise to account for both continuous fluctuations and sudden random shocks.
Sayed Murad Ali Shah +3 more
wiley +1 more source
A Test of Association between Qualitative Trait and a Set of SNPs [PDF]
, 2007 2000 Mathematics Subject Classification: 62P10, 92D10, 92D30, 62F03In this article, we propose a novel candidate-gene association test that utilizes a set of tightly linked single nucleotide polymorphisms (SNPs).
Nickolov, Radoslav, Milanov, Valentin
core
Mathematical modeling, analysis and Markov Chain Monte Carlo simulation of Ebola epidemics
, 2017 Ebola virus infection is a severe infectious disease with the highest case fatality rate which become the global public health treat now. What makes the disease the worst of all is no specific effective treatment available, its dynamics is not much ...
Zunyou Wu +2 more
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