Results 1 to 10 of about 800 (123)

Optimal control for COVID-19 pandemic with quarantine and antiviral therapy [PDF]

Sensors International, 2021
In the absence of a proper cure for the disease, the recent pandemic caused by COVID-19 has been focused on isolation strategies and government measures to control the disease, such as lockdown, media coverage, and improve public hygiene.
Md. Abdullah Bin Masud, Mostak Ahmed, Md. Habibur Rahman   +2 more
doaj   +2 more sources

A mathematical model of Coronavirus Disease (COVID-19) containing asymptomatic and symptomatic classes [PDF]

Results in Physics, 2021
The research work in this paper attempts to describe the outbreak of Coronavirus Disease 2019 (COVID-19) with the help of a mathematical model using both the Ordinary Differential Equation (ODE) and Fractional Differential Equation.
Idris Ahmed, Goni Umar Modu, Abdullahi Yusuf, Poom Kumam, Ibrahim Yusuf   +4 more
doaj   +2 more sources

The e-positive mild solutions for impulsive evolution fractional differential equations with sectorial operator

Differential Equations & Applications, 2023
. In this paper, we investigate the existence of global e -positive mild solutions to the initial value problem for a nonlinear impulsive fractional evolution differential equation involving the theory of sectorial operators.
J. F. Junior, José Vanterler da Costa Sousa, E. Capelas de Oliveira   +2 more
semanticscholar   +1 more source

Influence of hospital size on antimicrobial resistance and advantages of restricting antimicrobial use based on cumulative antibiograms in dogs with Staphylococcus pseudintermedius infections in Japan

Veterinary Dermatology, Volume 32, Issue 6, Page 668-e178, December 2021., 2021
Background Antimicrobial resistance in Staphylococcus pseudintermedius (SP) and the prevalence of meticillin‐resistant SP (MRSP) is increasing in dogs worldwide. Objectives To evaluate the influence of hospital size on antimicrobial resistance of SP and whether restricted use of antimicrobials based on antibiograms could reduce the identification of ...
Keita Iyori, Taku Shishikura, Kenta Shimoike, Kenichi Minoshima, Ichiro Imanishi, Yoichi Toyoda   +5 more
wiley   +1 more source

Existence of solution for a Dirichlet boundary value problem involving the p(x) Laplacian via a fixed point approach

Miskolc Mathematical Notes, 2022
. In this paper, we study the existence of a non-trivial solution in W 1 , p ( x ) 0 ( Ω ) for the problem (cid:40) ∆ p ( x ) u = f ( x , u , ∇ u ) in Ω , u = 0 in Ω . The proof is based on Schaefer’s fixed point theorem.
S. Ayadi, Ozgur Ege
semanticscholar   +1 more source

Analytical and numerical analysis of damped harmonic oscillator model with nonlocal operators

Demonstratio Mathematica, 2023
Nonlocal operators with different kernels were used here to obtain more general harmonic oscillator models. Power law, exponential decay, and the generalized Mittag-Leffler kernels with Delta-Dirac property have been utilized in this process.
Alharthi Nadiyah Hussain, Atangana Abdon, Alkahtani Badr S.   +2 more
doaj   +1 more source

Modified Van der Pol-Helmholtz oscillator equation with exact harmonic solutions

, 2022
In this paper, we present an exceptional Lienard equation consisting of a modified Van der Pol-Helmholtz oscillator equation. The equation, a frequency-dependent damping oscillator, does not satisfy the classical existence theorems but, nevertheless ...
Abdou Raimi Olagnika Akplogan, K. K. D. Adjaï, J. Akande, G. Y. Avossevou, M. D. Monsia   +4 more
semanticscholar   +1 more source

A modified Picone-type identity and the uniqueness of positive symmetric solutions for a prescribed mean curvature problem

Advanced Nonlinear Studies, 2023
In this article, we study the uniqueness of positive symmetric solutions of the following mean curvature problem in Euclidean space: (P)u′1+∣u′∣2′+h(x)f(u)=0 ...
Lee Yong-Hoon, Yang Rui
doaj   +1 more source

Role of ecotourism in conserving forest biomass: A mathematical model

Computational and Mathematical Biophysics, 2023
Ecotourism is a form of tourism involving responsible travel to natural areas, conserving the environment, and improving the well-being of the local people.
Pathak Rachana, Bhadauria Archana Singh, Chaudhary Manisha, Verma Harendra, Mathur Pankaj, Agrawal Manju, Singh Ram   +6 more
doaj   +1 more source

On the existence of nonnegative radial solutions for Dirichlet exterior problems on the Heisenberg group

Demonstratio Mathematica, 2023
We investigate the existence and nonexistence of nonnegative radial solutions to exterior problems of the form ΔHmu(q)+λψ(q)K(r(q))f(r2−Q(q),u(q))=0{\Delta }_{{{\mathbb{H}}}^{m}}u\left(q)+\lambda \psi \left(q)K\left(r\left(q))f\left({r}^{2-Q}\left(q),u ...
Jleli Mohamed
doaj   +1 more source