Results 21 to 30 of about 214,445 (261)

A stability index for travelling waves in activator-inhibitor systems

open access: yesProceedings of the Royal Society of Edinburgh: Section A Mathematics, 2019
AbstractWe consider the stability of nonlinear travelling waves in a class of activator-inhibitor systems. The eigenvalue equation arising from linearizing about the wave is seen to preserve the manifold of Lagrangian planes for a nonstandard symplectic form. This allows us to define a Maslov index for the wave corresponding to the spatial evolution of
Cornwell, Paul   +1 more
openaire   +3 more sources

Clinical study on the feasibility of new thrombus markers in predicting massive cerebral infarction

open access: yesFrontiers in Neurology, 2023
ObjectiveThis study investigated the diagnostic performance of the thrombin-antithrombin complex (TAT), plasmin-α2 plasmin inhibitor complex (PIC), tissue plasminogen activator-plasminogen activator inhibitor complex (t-PAIC), and thrombomodulin (TM) in ...
Xiaoxia Zhao   +6 more
doaj   +1 more source

Value of novel thrombotic markers for predicting occurrence of the malignant cerebral artery infarction: a prospective clinical study

open access: yesFrontiers in Neurology, 2023
ObjectiveThis study investigated the diagnostic performance of thrombin–antithrombin complex (TAT), plasmin–α2 plasmin inhibitor complex (PIC), tissue plasminogen activator–plasminogen activator inhibitor complex (t-PAIC), and thrombomodulin (TM) in ...
Xiaoxia Zhao   +6 more
doaj   +1 more source

Roles of calcium/calmodulin-dependent kinase II in long-term memory formation in crickets. [PDF]

open access: yesPLoS ONE, 2014
Ca(2+)/calmodulin (CaM)-dependent protein kinase II (CaMKII) is a key molecule in many systems of learning and memory in vertebrates, but roles of CaMKII in invertebrates have not been characterized in detail.
Makoto Mizunami   +4 more
doaj   +1 more source

Global Solutions for an -Component System of Activator-Inhibitor Type

open access: yesAbstract and Applied Analysis, 2013
This paper deals with a reaction-diffusion system with fractional reactions modeling -substances into interaction following activator-inhibitor's scheme. The existence of global solutions is obtained via a judicious Lyapunov functional that generalizes the one introduced by Masuda and Takahashi.
Salem Abdelmalek   +2 more
openaire   +4 more sources

Robust network topologies for generating oscillations with temperature-independent periods.

open access: yesPLoS ONE, 2017
Nearly all living systems feature a temperature-independent oscillation period in circadian clocks. This ubiquitous property occurs at the system level and is rooted in the network architecture of the clock machinery. To investigate the mechanism of this
Lili Wu, Qi Ouyang, Hongli Wang
doaj   +1 more source

When cytokinin, a plant hormone, meets the adenosine A2A receptor: a novel neuroprotectant and lead for treating neurodegenerative disorders? [PDF]

open access: yesPLoS ONE, 2012
It is well known that cytokinins are a class of phytohormones that promote cell division in plant roots and shoots. However, their targets, biological functions, and implications in mammalian systems have rarely been examined. In this study, we show that
Yi-Chao Lee   +6 more
doaj   +1 more source

Activator-inhibitor system with delay and pattern formation

open access: yesMathematical and Computer Modelling, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Sustained Therapeutic Efficacy of Intravenous Plasminogen Concentrate in Pediatric Patients With Type 1 Plasminogen Deficiency: An Analysis of Dosing Parameters and Clinical Outcomes

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Type 1 plasminogen deficiency (PLGD‐1) is an ultra‐rare autosomal recessive disorder caused by variants in the PLG gene and affects approximately 1.6 individuals per million. The condition is characterized by decreased plasminogen levels and impaired function, resulting in fibrin‐rich lesions on mucous membranes throughout the body.
Charles Nakar   +7 more
wiley   +1 more source

Amplification without instability: applying fluid dynamical insights in chemistry and biology

open access: yesNew Journal of Physics, 2013
While amplification of small perturbations often arises from instability, transient amplification is possible locally even in asymptotically stable systems.
Jonathan H McCoy
doaj   +1 more source

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