Results 61 to 70 of about 938 (156)

Stochastic models of the growth dynamics of some dendritic cells

open access: yesbioRxiv, 2018
Different models of tumor growth are considered. Some mathematical methods are developed to analyze the dynamics of mutations enabling cells in cancer patients to metas-tize. The mathematical models consist of some stochastic dynamical systems describing
Khairia El-Said El-Nadi Khairia
semanticscholar   +1 more source

Global periodic solutions in a plankton-fish interaction model with toxication delay

open access: yesNonlinear Engineering, 2018
In this paper, a plankton-fish interaction model is proposed and analyzed with the help of delay differential equations. Firstly, the elementary dynamical properties of the system in the absence of time delay is discussed.
Sharma Amit
doaj   +1 more source

Models of kleptoparasitism on networks: the effect of population structure on food stealing behaviour [PDF]

open access: yes, 2017
The behaviour of populations consisting of animals that interact with each other for their survival and reproduction is usually investigated assuming homogeneity amongst the animals. However, real populations are non-homogeneous.
Broom, M   +2 more
core   +3 more sources

Variational multiscale stabilized FEM for cardiovascular flows in complex arterial vessels under magnetic forces

open access: yesComputational and Mathematical Biophysics
In this study, we present a variational multiscale stabilized finite element method for steady-state incompressible fluid flow under magnetic forces. In particular, an algebraic approach of approximating the subscales has been considered, and then, the ...
Sahoo Dipak Kumar   +2 more
doaj   +1 more source

Study of the Bacterial "Conversations" and Pattern Formation in the Quorum Sensing System using Numerical Simulation

open access: yesJournal of Human, Earth, and Future, 2022
Cell-to-cell communication processes in the bacterial world can be considered as a collective bacterial behavior, which is coordinated by chemical signaling molecules (autoinducers, quorum sensing molecules, or pheromones).
Sarangam Majumdar   +2 more
doaj   +1 more source

Comparison of Perron and Floquet eigenvalues in age structured cell division cycle models [PDF]

open access: yes, 2008
We study the growth rate of a cell population that follows an age-structured PDE with time-periodic coefficients. Our motivation comes from the comparison between experimental tumor growth curves in mice endowed with intact or disrupted circadian clocks,
Arino   +12 more
core   +6 more sources

Approximation operators based on preconcepts

open access: yesOpen Mathematics, 2020
Using the notion of preconcept, we generalize Pawlak’s approximation operators from a one-dimensional space to a two-dimensional space in a formal context.
Wang Gang, Mao Hua
doaj   +1 more source

STOCHASTIC DYNAMICS OF CELL LINEAGE IN TISSUE HOMEOSTASIS. [PDF]

open access: yes, 2019
During epithelium tissue maintenance, lineages of cells differentiate and proliferate in a coordinated way to provide the desirable size and spatial organization of different types of cells.
Chen, Weitao, Nie, Qing, Qiu, Yuchi
core   +2 more sources

An Optimal Control Analysis of Dengue Fever

open access: yesInPrime, 2023
Dengue fever is one of the most infectious diseases in the world, according to data issued by the World Health Organization in 2014. It is responsible for a huge number of deaths each year around the world, particularly in tropical nations.
Nur Ilmayasinta   +3 more
doaj   +1 more source

On some Free Boundary Problems of the Prey-predator Model [PDF]

open access: yes, 2014
In this paper we investigate some free boundary problems for the Lotka-Volterra type prey-predator model in one space dimension. The main objective is to understand the asymptotic behavior of the two species (prey and predator) spreading via a free ...
Wang, Mingxin
core   +1 more source

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