Results 71 to 80 of about 938 (156)

Model and Simulation of COVID-19 Transmission with Vaccination and Quarantine Interventions in Jember

InPrime, 2023
In this study, we model the transmission of COVID-19 by considering vaccination and quarantine interventions. The focus of our study is to measure the effect of these two interventions on controlling the spread of COVID-19.
Faizal Rifky Fahreza, Moh. Hasan, Kusbudiono Kusbudiono   +2 more
doaj   +1 more source

Necrotic tumor growth: an analytic approach

, 2012
The present paper deals with a free boundary problem modeling the growth process of necrotic multi-layer tumors. We prove the existence of flat stationary solutions and determine the linearization of our model at such an equilibrium.
A Friedman, A Friedman, A Friedman, A Friedman, AH Kyle, D Gilbarg, F Zhou, H Byrne, J Escher, J Ward, JB Kim, Martin Kohlmann, MG Crandall, S Cui, W Müller-Klieser   +14 more
core   +1 more source

On Linearizing Systems of Diffusion Equations [PDF]

, 2006
We consider systems of diffusion equations that have considerable interest in Soil Science and Mathematical Biology and focus upon the problem of finding those forms of this class that can be linearized.
Sophocleous, Christodoulos, Wiltshire, Ron J.   +1 more
core   +4 more sources

Optimal control and bifurcation analysis of SEIHR model for COVID-19 with vaccination strategies and mask efficiency

Computational and Mathematical Biophysics
In this article, we present a susceptible, exposed, infected, hospitalized and recovered compartmental model for COVID-19 with vaccination strategies and mask efficiency. Initially, we established the positivity and boundedness of the solutions to ensure
Muthu Poosan Moopanar, Kumar Anagandula Praveen   +1 more
doaj   +1 more source

Growth rate, evolutionary entropy and ageing across the tree of life

Journal of Biological Dynamics, 2023
The growth rate of a population serves as a measure of its Darwinian fitness, while its sensitivity indicates the intensity of selection. Generally, the sensitivity of r decreases with age, resulting in an expected increase in population mortality over ...
Jorge Buescu, Henrique M. Oliveira, Mónica Sousa   +2 more
doaj   +1 more source

Global stability analysis and control of leptospirosis

Open Mathematics, 2016
The aim of this paper is to investigate the effectiveness and cost-effectiveness of leptospirosis control measures, preventive vaccination and treatment of infective humans that may curtail the disease transmission. For this, a mathematical model for the
Okosun Kazeem Oare, Mukamuri M., Makinde Daniel Oluwole   +2 more
doaj   +1 more source

Evaluation of TB elimination strategies in Canadian Inuit populations: Nunavut as a case study

Infectious Disease Modelling, 2022
Tuberculosis (TB) continues to disproportionately affect Inuit populations in Canada with some communities having over 300 times higher rate of active TB than Canadian-born, non-Indigenous people. Inuit Tuberculosis Elimination Framework has set the goal
Elaheh Abdollahi, Yoav Keynan, Patrick Foucault, Jason Brophy, Holden Sheffield, Seyed M. Moghadas   +5 more
doaj   +1 more source

The aggregation equation with power-law kernels: ill-posedness, mass concentration and similarity solutions

, 2011
We study the multidimensional aggregation equation $u_t+\Div(uv)=0$, $v=-\nabla K*u$ with initial data in $\cP_2(\bR^d)\cap L_{p}(\bR^d)$. We prove that with biological relevant potential $K(x)=|x|$, the equation is ill-posed in the critical Lebesgue ...
Dong, Hongjie
core   +2 more sources

Mathematical modelling of growth of tumour cells with chemotherapeutic cells by using Yang–Abdel–Cattani fractional derivative operator

Journal of Taibah University for Science, 2022
Cancer is a fatal disease for a very long time. It has its own history. Now it has become one of the major reasons for death due to its various types. Researchers, scientists and doctors are trying to find out the success and minimize the death rate in ...
Manvendra Narayan Mishra, A. F. Aljohani
doaj   +1 more source

Sets of double and triple weights of trees

, 2011
Let T be a weighted tree with n leaves. Let D_{i,j} be the distance between the leaves i and j. Let D_{i,j,k}= (D_{i,j} + D_{j,k} +D_{i,k})/2. We will call such numbers "triple weights" of the tree.
Rubei, Elena
core   +1 more source