Results 51 to 60 of about 42,411 (234)
On a 2D Model of Avascular Tumor with Weak Allee Effect
Journal of Applied Mathematics, 2019 Recent studies reveal that Allee effect may play important roles in the growth of tumor. We present one of the first mathematical models of avascular tumor that incorporates the weak Allee effect. The model considers the densities of tumor cells in three
Peng Feng, Zhewei Dai, Dorothy Wallace
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Impact of the fear and Allee effect on a Holling type II prey–predator model
Advances in Difference Equations, 2021 In this paper, we propose and investigate a prey–predator model with Holling type II response function incorporating Allee and fear effect in the prey. First of all, we obtain all possible equilibria of the model and discuss their stability by analyzing ...
Binfeng Xie
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Advanced Functional Materials, EarlyView.Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo +2 more
wiley +1 more source
BarekengThis study presents a prey-predator model incorporating the Allee effect and Holling Type IV Functional Response. The model identifies three equilibrium points: the zero-equilibrium, the predator extinction equilibrium, and the positive equilibrium ...
Resmawan Resmawan +3 more
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Fractal and Fractional, 2021 In this paper, a modified Leslie–Gower predator-prey model with Beddington–DeAngelis functional response and double Allee effect in the growth rate of a predator population is proposed.
Emli Rahmi +3 more
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Hierarchical competition models with Allee effects
Journal of Biological Dynamics, 2014 We consider a two-species hierarchical competition model with a strong Allee effect. The Allee effect is assumed to be caused by predator saturation. Moreover, we assume that there is a 'silverback' species x that gets first choice of the resources and where growth is limited by its own intraspecific competition, while the second 'inferior' species y ...
Laila, Assas +4 more
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Advanced Science, EarlyView.This study investigates how the internal structure of fiber‐reinforced ceramic composites affects their resistance to damage. By combining 3D X‐ray imaging with acoustic emission monitoring during mechanical testing, it reveals how silicon distribution influences crack formation.
Yang Chen +7 more
wiley +1 more source
On the role of Allee effect and mass migration in survival and extinction of a species
, 2012 We use interacting particle systems to investigate survival and extinction of a species with colonies located on each site of $\mathbb {Z}^d$. In each of the four models studied, an individual in a local population can reproduce, die or migrate to ...
Borrello, Davide
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Relative ranges of mating and dispersal modulate Allee thresholds in sessile species [PDF]
, 2017 Sessile organisms, including plants and benthic macrofauna, are often restricted in the ranges over which they are able to reproduce and disperse. This leads to spatial patterning within populations, causing the effective population density around each ...
Eichhorn, Markus P. +1 more
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Population Dynamic Consequences of Allee Effects
Journal of Theoretical Biology, 2002 We take a well-known dynamic model of an isolated, unstructured population and modify this to include a factor that allows for a reduction in fitness due to declining population sizes, often termed an Allee effect. Analysis of the behaviour of this model is carried out on two fronts - determining the equilibrium values and examining the stability of ...
M S, Fowler, G D, Ruxton
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