Results 31 to 40 of about 234,823 (303)

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

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

Genetic and cytological evidence that heterocyst patterning is regulated by inhibitor gradients that promote activator decay [PDF]

open access: yes, 2009
The formation of a pattern of differentiated cells from a group of seemingly equivalent, undifferentiated cells is a central paradigm of developmental biology.
Risser, Douglas D., Callahan, Sean M.
core   +1 more source

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

On the Neumann problem for some semilinear elliptic equations and systems of activator-inhibitor type

open access: yes, 1986
We derive a priori estimates for positive solutions of the Neumann problem for some semilinear elliptic systems (i.e., activator-inhibitor systems in biological pattern formation theory), as well as for semilinear single equations related to such systems.
Wei-Ming Ni, Izumi Takagi
core   +1 more source

Dynamics and patterns of an activator-inhibitor model with cubic polynomial source [PDF]

open access: yes, 2019
summary:The dynamics of an activator-inhibitor model with general cubic polynomial source is investigated. Without diffusion, we consider the existence, stability and bifurcations of equilibria by both eigenvalue analysis and numerical methods.
Li, Yanqiu, Jiang, Juncheng
core   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
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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