Fuzzy fractional mathematical model of COVID-19 epidemic

Mathematical Model of Novel COVID-19 and Its Transmission Dynamics

In this paper, we formulated a dynamical model of COVID-19 to describe the transmission dynamics of the disease. The well possedness of the formulated model equations was proved. Both local and global stability of the disease free equilibrium and endemic equilibrium point of the model equation was established using basic reproduction number. The results show that, if the basic reproduction numb...

Fuzzy Sliding Mode Controller Design and Analysis of an SQEIAR Epidemic Model for COVID-19 to Determine the Quarantine Rate

According to the global prevalence of coronavirus (COVID-19) pandemic, mathematical models can predict and control the dynamic behavior of the pandemic. Therefore, in this study, a comprehensive model is considered to examine the trend of COVID-19 based on Susceptible, Exposed, Infected (Symptomatic and Asymptomatic), and Recovered individuals. In the absence of a curative treatment or vaccinat...

Psychosocial Problems During the COVID-19 Epidemic Crisis

Mathematical Analysis Of A Tuberculosis Epidemic Model

In this paper, we analyze a mathematical model of tuberculosis (TB) epidemics for stability with respect to the basic reproduction number Ro. The basic reproduction number Ro is determined. We give criteria for stability of the disease – free equilibrium (DFE) and the endemic equilibrium

A study of students' lived experience of virtual education during the epidemic of Covid-19

The aim of this study was to investigate the lived experience of Guilan University students from virtual education during the Covid-19 epidemic. The method of the present study was qualitative descriptive phenomenology. Participants were 21 students who were selected through a purposeful sampling method and semi-structured interviews with them continued to the point of theoretical saturation. I...