Results 81 to 90 of about 65,693 (292)

A Mathematical Model of Malaria Transmission with Structured Vector Population and Seasonality

open access: yesJournal of Applied Mathematics, 2017
In this paper, we formulate a mathematical model of nonautonomous ordinary differential equations describing the dynamics of malaria transmission with age structure for the vector population.
Bakary Traoré   +2 more
doaj   +1 more source

Effect of pulse vaccination on dynamics of dengue with periodic transmission functions

open access: yesAdvances in Difference Equations, 2019
Pulse vaccination is a repeated vaccination policy, which plays a tremendous role in the global fight against communicable diseases in terms of saving medical resources and decreasing the economic burden.
Rashid Jan, Yanni Xiao
doaj   +1 more source

Upper Cervical Cord Area as a Biomarker of Conversion to Secondary Progressive Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective This study assessed whether upper cervical cord area (UCCA) measured on routine brain MRI can serve as a biomarker of conversion to SPMS. Methods This is a single‐center retrospective cohort study of RRMS patients with cross‐sectional and longitudinal analyses of clinical and MRI data. Future SPMS converters were matched by age, sex,
Nabil K. El Ayoubi   +8 more
wiley   +1 more source

Threshold dynamics of a predator–prey model with age-structured prey

open access: yesAdvances in Difference Equations, 2018
A predator–prey model, with aged structure in the prey population and the assumption that the predator hunts prey of all ages, is proposed and investigated.
Yang Lu, Shengqiang Liu
doaj   +1 more source

Real‐World Longitudinal Data on the Impact of Hydroxychloroquine Blood Level Monitoring on Lupus Outcomes: Results of a Prospective Longitudinal Cohort Study

open access: yesArthritis Care &Research, EarlyView.
Objective Hydroxychloroquine (HCQ) is a cornerstone therapy in systemic lupus erythematosus (SLE), but the weight‐based dosing does not account for clinical factors that can introduce individual variability in drug metabolism and clearance. We leveraged longitudinal data from a prospective SLE cohort to identify clinical factors that predict ...
Jay J. Patel   +6 more
wiley   +1 more source

Global stability and uniform persistence of the reaction-convection-diffusion cholera epidemic model

open access: yes, 2016
We study the global stability issue of the reaction-convection-diffusion cholera epidemic PDE model and show that the basic reproduction number serves as a threshold parameter that predicts whether cholera will persist or become globally extinct ...
Wang, Xueying   +3 more
core   +1 more source

Dynamical analysis of the SVEIR-M epidemic model with age structure under media coverage

open access: yesInfectious Disease Modelling
With the frequent emergence and spread of new infectious diseases, poses severe threats to public health, and the government often relies on non-pharmaceutical interventions to cope.
Jianrong Wang   +3 more
doaj   +1 more source

Boundedness and Global Stability for a Predator-Prey System with the Beddington-DeAngelis Functional Response

open access: yesDifferential Equations and Nonlinear Mechanics, 2010
We study the qualitative behavior of a class of predator-prey models with Beddington-DeAngelis-type functional response, primarily from the viewpoint of permanence (uniform persistence).
Wahiba Khellaf, Nasreddine Hamri
doaj   +1 more source

Mathematical analysis of toxin-phytoplankton-fish model with self-diffusion and cross-diffusion

open access: yesBiomath, 2019
In this paper we propose a nonlinear reaction-diffusion system describing the interaction between toxin-producing phytoplankton and fish population. We analyze the effect of self- and cross-diffusion on the dynamics of the system.
Hamidou Ouedraogo   +2 more
doaj   +1 more source

The global dynamics for an age-structured SLIS model with the delay

open access: yesBoundary Value Problems, 2020
This paper deals with the global dynamics for a SLIS epidemic model with infection age. In our model, we also consider the time delay in the progression from the latent individuals to becoming infectious individuals.
Hongwu Tan, Xin Yang, Hui Cao
doaj   +1 more source

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