Results 31 to 40 of about 290,434 (306)

Bifurcation of Nonlinear Equations: II. Dynamic Bifurcation [PDF]

open access: yesMethods and Applications of Analysis, 2004
[Part 1 appeared ibid., 155--178 (1994; Zbl 1095.47027), see the preceding review.] The authors study dynamic bifurcation when the eigenvalue of the linearized problem has algebraic multiplicity one or two. As in the first part of the work for steady state bifurcations, their key idea is to analyze precisely the effect of the higher-order nondegenerate
Ma, Tian, Wang, Shouhong
openaire   +3 more sources

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Endovascular repair of aortoiliac aneurysmal disease with the helical iliac bifurcation device and the bifurcated-bifurcated iliac bifurcation device [PDF]

open access: yesJournal of Vascular Surgery, 2013
Iliac branch device (IBD) treatment of common and internal iliac artery (CIA and IIA) aneurysms has been controversial in the context of available embolization techniques or off-label adjunctive procedures. Two devices exist, a straight IBD (S-IBD) and a helical IBD (H-IBD).
Wong, Shen   +5 more
openaire   +2 more sources

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

Possibility of Atherosclerosis in an Arterial Bifurcation Model

open access: yesBioImpacts, 2011
Introduction: Arterial bifurcations are susceptible locations for formation of atherosclerotic plaques. In the present study, steady blood flow is investigated in a bifurcation model with a non-planar branch.
Omid Arjmandi-Tash   +2 more
doaj   +1 more source

Practical use of dual-lumen catheter-facilitated reverse wire technique for nonhighly angulated side branch

open access: yesResearch in Cardiovascular Medicine, 2022
Dual-lumen catheter (DLC)-facilitated reverse wire technique is considered a method of last resort for inserting a guidewire into a markedly angulated side branch.
Issei Ota   +7 more
doaj   +1 more source

Epilepsy‐Associated Variants of a Single SCN1A Codon Exhibit Divergent Functional Properties

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Pathogenic variants in SCN1A, which encodes the voltage‐gated sodium channel NaV1.1, are associated with multiple epilepsy syndromes exhibiting a range of clinical severity. SCN1A variants are reported in different syndromes, including Dravet syndrome, which is associated with loss‐of‐function, whereas neonatal/infantile‐onset ...
Lanie N. Liebovitz   +3 more
wiley   +1 more source

Complex Dynamics on the Routes to Chaos in a Discrete Predator-Prey System with Crowley-Martin Type Functional Response

open access: yesDiscrete Dynamics in Nature and Society, 2018
We present in this paper an investigation on a discrete predator-prey system with Crowley-Martin type functional response to know its complex dynamics on the routes to chaos which are induced by bifurcations.
Huayong Zhang   +5 more
doaj   +1 more source

Dynamics of A Discrete-Time Ecogenetic Predator-Prey Model

open access: yesCommunication in Biomathematical Sciences, 2023
This article considers a discrete-time model of two genetically distinguished predator population and one prey population. The existence and nature of the boundary and positive fixed points are examined.
Debasis Mukherjee
doaj   +1 more source

On bifurcations of cusps

open access: yesJournal of the Mathematical Society of Japan, 2019
Let f_t , where t is close to zero, be an analytic family of plane-to-plane mappings. There are presented effective methods of computing the number of cusps of f_t emanating from the origin and having positive/negative cusp degree.
openaire   +4 more sources

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