Traveling wavefronts in a two-species chemotaxis model with Lotka–Volterra competitive kinetics

2021 ◽  
Vol 114 ◽  
pp. 106905
Author(s):  
Dong Li ◽  
Xiaolong He ◽  
Xinping Li ◽  
Shangjiang Guo
Keyword(s):  
Chemotaxis Model ◽  
Competitive Kinetics

scholarly journals The inhibition of deoxyribonucleic acid nucleotidyltransferase by stilboestrol derivatives

1968 ◽  
Vol 108 (5) ◽  
pp. 749-753 ◽  
Author(s):  
A R Fahmy ◽  
K Griffiths
Keyword(s):  
Comparative Study ◽  
Deoxyribonucleic Acid ◽  
Inhibitory Effect ◽  
Effective Inhibitor ◽  
Inhibitory Effects ◽  
Alkyl Substitution ◽  
Competitive Kinetics ◽  
Calf Thymus

The inhibition by diethylstilboestrol of DNA nucleotidyltransferase isolated from calf thymus was studied. The inhibition exercised by diethylstilboestrol appears to obey competitive kinetics with respect to DNA primer. The activities of both replicative and terminal enzymes were affected to the same extent. There was no evidence of binding between DNA and diethylstilboestrol. A comparative study of the inhibitory effects of some stilboestrol derivatives is presented. The alkyl substitution in the αα′-positions seem to alter the inhibitory effect of these compounds: dimethylstilboestrol was more inhibitory than stilbene, and diethylstilboestrol was more inhibitory than dimethylstilboestrol. Hexoestrol, in which the αα′-ethylenic linkage is saturated, was the most effective inhibitor.

scholarly journals Spatiotemporal evolution in a (2+1)-dimensional chemotaxis model

2012 ◽  
Vol 391 (1-2) ◽  
pp. 107-112 ◽  
Author(s):  
Santo Banerjee ◽  
Amar P. Misra ◽  
L. Rondoni
Keyword(s):  
Spatiotemporal Evolution ◽  
Chemotaxis Model

scholarly journals Chemotaxis Model for Breast Cancer Cells Based on Signal/Noise Ratio

2018 ◽  
Vol 115 (10) ◽  
pp. 2034-2043 ◽  
Author(s):  
Seongjin Lim ◽  
Hyeono Nam ◽  
Jessie S. Jeon
Keyword(s):  
Breast Cancer ◽  
Cancer Cells ◽  
Breast Cancer Cells ◽  
Chemotaxis Model ◽  
Signal Noise ◽  
Noise Ratio

scholarly journals An eigenvalue problem arising from spiky steady states of a minimal chemotaxis model

2014 ◽  
Vol 420 (1) ◽  
pp. 684-704 ◽  
Author(s):  
Yajing Zhang ◽  
Xinfu Chen ◽  
Jianghao Hao ◽  
Xin Lai ◽  
Cong Qin
Keyword(s):  
Eigenvalue Problem ◽  
Steady States ◽  
Chemotaxis Model

The 8π-problem for radially symmetric solutions of a chemotaxis model in the plane

2006 ◽  
Vol 29 (13) ◽  
pp. 1563-1583 ◽  
Author(s):  
Piotr Biler ◽  
Grzegorz Karch ◽  
Philippe Laurençot ◽  
Tadeusz Nadzieja
Keyword(s):  
Chemotaxis Model ◽  
Radially Symmetric Solutions

scholarly journals Tackling the Short-Lived Marangoni Motion Using a Supramolecular Strategy

CCS Chemistry ◽  
2019 ◽  
Vol 1 (2) ◽  
pp. 148-155 ◽  
Author(s):  
Mengjiao Cheng ◽  
Dequn Zhang ◽  
Shu Zhang ◽  
Zuankai Wang ◽  
Feng Shi
Keyword(s):  
Surface Tension ◽  
Electricity Generation ◽  
Adsorption Equilibrium ◽  
Molecular Level ◽  
Surface Tension Gradient ◽  
Aggregation State ◽  
Physical Limit ◽  
Competitive Kinetics ◽  
Air Liquid Interface ◽  
Spontaneous Motion

Inspired by the intriguing capability of beetles to quickly slide on water, scientists have long translated this surface-tension-gradient–dominated Marangoni motion into various applications, for example, self-propulsion. However, this classical spontaneous motion is limited by a short lifetime due to the loss of the surface tension gradient. Indeed, the propellant of amphiphilic surfactants can rapidly reach an adsorption equilibrium and an excessive aggregation state at the air/liquid interface. Here, we demonstrate a supramolecular host–guest chemistry strategy that allows the breaking of the physical limit of the adsorption equilibrium and the simultaneous removal of surfactant molecules from the interface. By balancing the competitive kinetics between the two processes, we have prolonged the lifetime of the motion 40-fold. Our work presents an important advance in the query of long-lived self-propulsion transport through flexible interference at the molecular level and holds promise in electricity generation applications .

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