Results 1 to 10 of about 1,052 (144)

The effect of changing COVID-19 restrictions on the transmission rate in a veterinary clinic [PDF]

open access: yesInfectious 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
doaj   +2 more sources

A vaccination model for COVID-19 in Gauteng, South Africa [PDF]

open access: yesInfectious Disease Modelling, 2022
The COVID-19 pandemic provides an opportunity to explore the impact of government mandates on movement restrictions and non-pharmaceutical interventions on a novel infection, and we investigate these strategies in early-stage outbreak dynamics.
Christina J. Edholm   +10 more
doaj   +2 more sources

Optimal control strategies for preventing hepatitis B infection and reducing chronic liver cirrhosis incidence [PDF]

open access: yesInfectious Disease Modelling, 2020
Advanced liver cirrhosis has become life-threatening among non-communicable diseases nowadays. Cirrhosis, the terminal stage of liver diseases in which the liver develops scarring as a result of various long-term continuous damages. Among liver diseases,
Mst. Shanta Khatun   +1 more
doaj   +2 more sources

Riemann-Liouville fractional integro-differential equations with fractional nonlocal integral boundary conditions

open access: yesBoundary Value Problems, 2011
This article investigates a boundary value problem of Riemann-Liouville fractional integro-differential equations with fractional nonlocal integral boundary conditions.
Ahmad Bashir, Nieto Juan
doaj   +2 more sources

The existence of infinitely many boundary blow-up solutions to the p-k-Hessian equation

open access: yesAdvanced Nonlinear Studies, 2023
The primary objective of this article is to analyze the existence of infinitely many radial pp-kk-convex solutions to the boundary blow-up pp-kk-Hessian problem σk(λ(Di(∣Du∣p−2Dju)))=H(∣x∣)f(u)inΩ,u=+∞on∂Ω.{\sigma }_{k}\left(\lambda \left({D}_{i}\left({|
Feng Meiqiang, Zhang Xuemei
doaj   +1 more source

Existence of positive solutions for second-order nonlinear neutral dynamic equations on time scales

open access: yesMoroccan Journal of Pure and Applied Analysis, 2021
In this article we study the existence of positive solutions for second-order nonlinear neutral dynamic equations on time scales. The main tool employed here is Schauder’s fixed point theorem.
Bouchelaghem Faycal   +2 more
doaj   +1 more source

Positive solutions for boundary value problems of a class of second-order differential equation system

open access: yesOpen Mathematics, 2023
This article discusses the existence of positive solutions for the system of second-order ordinary differential equation boundary value problems −u″(t)=f(t,u(t),v(t),u′(t)),t∈[0,1],−v″(t)=g(t,u(t),v(t),v′(t)),t∈[0,1],u(0)=u(1)=0,v(0)=v(1)=0,\left\{\begin{
Wang Dan, Li Yongxiang, Su Yi
doaj   +1 more source

Existence of positive periodic solutions for first-order nonlinear differential equations with multiple time-varying delays

open access: yesOpen Mathematics, 2022
This study elucidates the sufficient conditions for the first-order nonlinear differential equations with periodic coefficients and time-varying delays to have positive periodic solutions.
Han Xiaoling, Lei Ceyu
doaj   +1 more source

Besov's Type Embedding Theorem for Bilateral Grand Lebesgue Spaces [PDF]

open access: yes, 2010
In this paper we obtain the non-asymptotic norm estimations of Besov's type between the norms of a functions in different Bilateral Grand Lebesgue spaces (BGLS).
Ostrovsky, E., Sirota, L.
core   +3 more sources

Detections and SIR simulations of the COVID-19 pandemic waves in Ukraine

open access: yesComputational and Mathematical Biophysics, 2021
Background. Unfortunately, the COVID-19 pandemic is still far from stabilizing. Of particular concern is the sharp increase in the number of diseases in June-July, September-October 2020 and February-March 2021.
Nesteruk Igor
doaj   +1 more source

Home - About - Disclaimer - Privacy