Results 71 to 80 of about 760 (151)

Average sex ratio and population maintenance cost

open access: yes, 2015
The ratio of males to females in a population is a meaningful characteristic of sexual species. The reason for this biological property to be available to the observers of nature seems to be a question never asked.
Eduardo Garibaldi   +2 more
core   +1 more source

Pathwise approximations to solving the filtering problem for the stochastic chemostat

open access: yesbioRxiv
This paper concerns the inverse problem of characterising the state of a bioreactor from observations. In laboratory settings, the bioreactor is represented by a device called a chemostat.
J. A. F. Magalhães   +2 more
semanticscholar   +1 more source

Dynamic ecological system measures

open access: yesResults in Applied Mathematics, 2019
The system decomposition theory has recently been developed for the dynamic analysis of nonlinear compartmental systems. The application of this theory to the ecosystem analysis has also been introduced in a separate article.
Huseyin Coskun
doaj   +1 more source

Limit cycles by FEM for a one - parameter dynamical system associated to the Luo - Rudy I model

open access: yes, 2011
An one - parameter dynamical system is associated to the mathematical problem governing the membrane excitability of a ventricular cardiomyocyte, according to the Luo-Rudy I model. Limit cycles are described by the solutions of an extended system.
Amuzescu, Bogdan   +7 more
core  

Rhythms of the nervous system: mathematical themes and variations [PDF]

open access: yes, 2018
The nervous system displays a variety of rhythms in both waking and sleep. These rhythms have been closely associated with different behavioral and cognitive states, but it is still unknown how the nervous system makes use of these rhythms to perform ...
Kopell, Nancy
core  

Role of limited medical resources in an epidemic model with media report and general birth rate

open access: yesInfectious Disease Modelling
This paper formulates an SEIRSHM epidemic model with general birth rate, media report and limited medical resources. Firstly, the well-posedness of the solutions and the extinction of the disease are discussed.
Yicheng Hao, Yantao Luo, Zhidong Teng
doaj   +1 more source

Evaluating the Fidelity of Data-Driven Predator-Prey Models: A Dynamical Systems Analysis

open access: yesbioRxiv
In empirical predator-prey systems, understanding the inherent dynamics typically comes from analyzing a structural model fitted to observation data.
Anna S. Frank, Jiawen Zhang, Sam Subbey
semanticscholar   +1 more source

Biological and Mechanical Transmission Models of Dengue Fever

open access: yesCommunication in Biomathematical Sciences, 2019
Dengue fever disease is caused by the dengue virus and transmitted primarily by the Aedes aegypti mosquitoes. There is no vaccine available to prevent transmission of the disease until recently which makes 30% of the worlds population is at risk of the ...
Laura Laura   +3 more
doaj   +1 more source

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