Results 11 to 20 of about 970 (177)

Pulmonary parenchyma becomes a self-organized dissipative structure in lung cancers and pulmonary inflammatory diseases. [PDF]

open access: yesPhysiol Rep
Abstract Far‐from‐equilibrium thermodynamics were studied in patients with either lung cancer or pulmonary inflammatory diseases. Histological and mechanical activities were due to myofibroblasts. A study on isolated lung fragments treated with the Huxley formalism showed that mechanical abnormalities were similar in both groups: maximum velocity ...
Lecarpentier Y   +7 more
europepmc   +2 more sources

Turing mechanism underlying a branching model for lung morphogenesis. [PDF]

open access: yesPLoS ONE, 2017
The mammalian lung develops through branching morphogenesis. Two primary forms of branching, which occur in order, in the lung have been identified: tip bifurcation and side branching.
Hui Xu, Mingzhu Sun, Xin Zhao
doaj   +1 more source

Forced patterns near a Turing-Hopf bifurcation [PDF]

open access: yesPhysical Review E, 2010
We study time-periodic forcing of spatially-extended patterns near a Turing-Hopf bifurcation point. A symmetry-based normal form analysis yields several predictions, including that (i) weak forcing near the intrinsic Hopf frequency enhances or suppresses the Turing amplitude by an amount that scales quadratically with the forcing strength, and (ii) the
Topaz, C. M., Catlla, Anne J.
openaire   +3 more sources

Hopf bifurcation and Turing instability in a diffusive predator-prey model with hunting cooperation

open access: yesOpen Mathematics, 2022
In this article, we study Hopf bifurcation and Turing instability of a diffusive predator-prey model with hunting cooperation. For the local model, we analyze the stability of the equilibrium and derive conditions for determining the direction of Hopf ...
Miao Liangying, He Zhiqian
doaj   +1 more source

Turing–Hopf bifurcation of a ratio-dependent predator-prey model with diffusion

open access: yesAdvances in Difference Equations, 2019
In this paper, the Turing–Hopf bifurcation of a ratio-dependent predator-prey model with diffusion and Neumann boundary condition is considered. Firstly, we present a kind of double parameters selection method, which can be used to analyze the Turing ...
Qiushuang Shi, Ming Liu, Xiaofeng Xu
doaj   +1 more source

Spatiotemporal dynamics and Turing patterns in an eco-epidemiological model with cannibalism

open access: yesResults in Control and Optimization, 2022
In this work, we have studied the spatiotemporal dynamics and pattern formation in an eco-epidemiological model with cannibalism, which are not explored in the existing literature.
Vikas Kumar   +2 more
doaj   +1 more source

Bifurcation Analysis of a Generic Reaction–Diffusion Turing Model [PDF]

open access: yesInternational Journal of Bifurcation and Chaos, 2014
A generic Turing type reaction–diffusion system derived from the Taylor expansion near a constant equilibrium is analyzed. The existence of Hopf bifurcations and steady state bifurcations is obtained. The bifurcation direction and the stability of the bifurcating periodic obits are calculated.
Ping Liu   +3 more
openaire   +1 more source

Cross-diffusion-driven Turing instability and weakly nonlinear analysis of Turing patterns in a uni-directional consumer-resource system

open access: yesBoundary Value Problems, 2017
Spatiotemporal patterns driven by cross-diffusion of a uni-directional consumer-resource (C-R) system with Holling-II type functional response are investigated in this paper.
Renji Han, Binxiang Dai
doaj   +1 more source

Wavelength of a Turing-type mechanism regulates the morphogenesis of meshwork patterns

open access: yesScientific Reports, 2021
The meshwork pattern is a significant pattern in the development of biological tissues and organs. It is necessary to explore the mathematical mechanism of meshwork pattern formation.
Shan Guo, Ming-zhu Sun, Xin Zhao
doaj   +1 more source

Coupled Effects of Turing and Neimark-Sacker Bifurcations on Vegetation Pattern Self-Organization in a Discrete Vegetation-Sand Model

open access: yesEntropy, 2017
Wind-induced vegetation patterns were proposed a long time ago but only recently a dynamic vegetation-sand relationship has been established. In this research, we transformed the continuous vegetation-sand model into a discrete model.
Feifan Zhang   +4 more
doaj   +1 more source

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