Results 21 to 30 of about 290,434 (306)
Current Opinion in Chemical Biology, 2016 Electron bifurcation is the recently recognized third mechanism of biological energy conservation. It simultaneously couples exergonic and endergonic oxidation-reduction reactions to circumvent thermodynamic barriers and minimize free energy loss.
John W, Peters +4 more
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Bifurcations of a Ratio-Dependent Holling-Tanner System with Refuge and Constant Harvesting
Abstract and Applied Analysis, 2013 The bifurcation properties of a predator prey system with refuge and constant harvesting are investigated. The number of the equilibria and the properties of the system will change due to refuge and harvesting, which leads to the occurrence of several ...
Xia Liu, Yepeng Xing
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Bifurcation and criticality [PDF]
Journal of Statistical Mechanics: Theory and Experiment, 2019 Abstract Equilibrium and nonequilibrium systems exhibit power-law singularities close to their critical and bifurcation points respectively. A recent study has shown that biochemical nonequilibrium models with positive feedback belong to the universality class of the mean-field Ising model.
Bose, Indrani, Ghosh, Sayantari
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Frontiers in Neurology, 2019 Background: Bifurcation and sidewall aneurysms have different rupture risks, but whether this difference comes from the location of the aneurysm is not clear.
Qinglin Liu +11 more
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Scientific Reports, 2023 To investigate the relationship of the middle cerebral artery (MCA) bifurcation aneurysms with patients’ age and sex, vascular angles at the bifurcation, and diameters of the M1 and two M2 arteries, patients with and without MCA aneurysms were ...
Shu Wang +6 more
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Catheterization and cardiovascular interventions, 2020 Defining the optimal conduction of percutaneous‐coronary‐intervention (PCI) to treat bifurcation lesions has been the subject of many clinical studies showing that the applied stenting technique may influence clinical outcome.
F. Burzotta +17 more
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Clinical and morphological evaluation of coronary bifurcation lesions
Türk Kardiyoloji Derneği Arşivi, 2013 Objectives: We aimed to investigate the anatomical and morphological characterization of coronary bifurcation lesions. Study design: The study population consisted of 542 stable patients who underwent coronary angiography.
Mustafa Kurt +6 more
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Proceedings of the American Mathematical Society, 1964 A description of the classical bifurcation problem will be found in Minorsky [1, Chapter V] and Andronov and Chaikin [2, Chapter 6]. Here the functions fi and f2 are required to be analytic and the proof depends on the series expansion guaranteed by the analyticity. In [3, Chapter IV, ?6], K. 0.
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Hopf-zero bifurcation of Oregonator oscillator with delay
Advances in Difference Equations, 2018 In this paper, we study the Hopf-zero bifurcation of Oregonator oscillator with delay. The interaction coefficient and time delay are taken as two bifurcation parameters. Firstly, we get the normal form by performing a center manifold reduction and using
Yuting Cai, Liqin Liu, Chunrui Zhang
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Global bifurcation of positive solutions for a class of superlinear elliptic systems
Electronic Journal of Qualitative Theory of Differential Equations, 2023 We are concerned with the global bifurcation of positive solutions for semilinear elliptic systems of the form \begin{equation*} \begin{cases} -\Delta u=\lambda f(u,v) &\text{in}~\Omega,\\ -\Delta v=\lambda g(u,v) &\text{in}~\Omega,\\
Ruyun Ma, Yan Zhu, Yali Zhang
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