Results 61 to 70 of about 957 (157)

An Energetic Variational Approach for ion transport

open access: yes, 2014
The transport and distribution of charged particles are crucial in the study of many physical and biological problems. In this paper, we employ an Energy Variational Approach to derive the coupled Poisson-Nernst-Planck-Navier-Stokes system.
Liu, Chun, Sheng, Ping, Xu, Shixin
core   +2 more sources

The Effect of a Refractory Period on the Power Spectrum of Neuronal Discharge [PDF]

open access: yes, 1995
The interspike intervals in steady-state neuron firing are assumed to be independently and identically distributed random variables. In the simplest model discussed, each interval is assumed to be the sum of a random neuron refractory period and a ...
Bair, Wyeth, Franklin, Joel
core   +2 more sources

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

open access: yesComputational 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   +1 more
doaj   +1 more source

The Impact of Intervention Strategies on the Dissemination of Monkeypox Utilizing Fractional Differential Equations

open access: yesJournal of Mathematics, Volume 2025, Issue 1, 2025.
In this study, we develop a compartmental mathematical model to offer a thorough understanding of the dynamics of monkeypox viral transmission. We examine the sensitivity of the epidemic model to the fundamental reproduction number (R0). We also utilize an expanded Euler technique to scrutinize the dynamics of monkeypox transmission between humans and ...
M. Manivel   +3 more
wiley   +1 more source

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

Do Longer Delays Matter? The Effect of Prolonging Delay in CTL Activation [PDF]

open access: yes, 2010
The activation of a specific immune response takes place in the lymphoid organs such as the spleen. We present here a simplified model of the proliferation of specific immune cells in the form of a single delay equation.
Gallegos, Angela, Radunskaya, Ami
core   +2 more sources

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

On Linearizing Systems of Diffusion Equations [PDF]

open access: yes, 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   +1 more
core   +4 more sources

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

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

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