Results 81 to 90 of about 519,227 (204)
In 1952, Alan Turing accomplished a pioneering theoretical study to show that the coupling of nonlinear chemical reactions and diffusion leads to the instability of spatially homogeneous states.
Amiko Aizawa, Kouichi Asakura
doaj +1 more source
Turing instability and Hopf bifurcation in a predator–prey model with delay and predator harvesting
In this paper, we study a predator–prey model with delay and harvesting on predator. We give the conditions for stability and Turing instability of coexisting equilibrium by analyzing the eigenvalue spectrum.
Wenjing Gao +4 more
doaj +1 more source
Chemically Fueled Systems Chemistry Across Length Scales
Chemically fueled reaction cycles regulate processes through single and multiple catalytic sites on the molecular and assembly scale. This gives rise to unique kinetically controlled properties/functions like spatio‐temporal catalysis, oscillations, optical properties, and perform work.
Brigitte A. K. Kriebisch, Job Boekhoven
wiley +1 more source
Placental ischemia in pre‐eclampsia initiates cytokine‐driven endothelial dysfunction, angiogenic imbalance, oxidative stress, and thromboinflammation. Elevated TNF‐α, IL‐6, IL‐17, sFlt‐1, and complement activation promote vasoconstriction, thrombosis, and cardiovascular instability.
Emmanuel Ifeanyi Obeagu
wiley +1 more source
alan-turing-institute/netts: Installation fix
What's Changed Bugfix installation by @rkdan in https://github.com/alan-turing-institute/netts/pull/161 Removed redundant warning, update version number by @rkdan in https://github.com/alan-turing-institute/netts/pull/162 New Contributors @rkdan made ...
Ryan Daniels +5 more
core +1 more source
Turing instability under centrifugal forces [PDF]
Self-organized patterns are sensitive to microscopic external perturbations that modify the diffusion process. We find that Turing instability formed in a compartmented medium, a Belousov-Zhabotinski-aerosol-OT micelle reaction, responds sensitively to a change in the diffusion process. In order to modify the diffusion mechanism, we apply a centrifugal
Guiu-Souto, Jacobo +4 more
openaire +3 more sources
Investigation of Turing structures formation under the influence of wave instability [PDF]
A classical for nonlinear dynamics model, Brusselator, is considered, being augmented by addition of a third variable, which plays the role of a fast-diffusing inhibitor.
Maxim Borisovich Kuznetsov
doaj +1 more source
Design and Fabrication of Complex Micro–Nano Structures for Osteogenesis Interfacing in 3D
The graphical abstract demonstrates the 3D Si structure platforms and the cell interactions. (left) Si structures including wine glass‐, obelisk‐, and pillar‐shaped structures are fabricated at wafer scale. (right) Compare to planar Si substrate, the wine glass‐shaped structures demonstrated promising cellular behavior and osteogenesis guidance by ...
Xuanrui Zhou +4 more
wiley +1 more source
Semiology of Functional Seizures: Sex‐Related Differences
ABSTRACT Background While functional seizures (FSs) are far more common among women, previous studies found only a few differences between the two sex groups in relation to semiological characteristics. Purpose To compare motor FS semiology between men and women.
Ronen Spierer +2 more
wiley +1 more source
We propose the Powerful‐but‐Limited Generative AI theorem, demonstrating that embedding human‐inspired constraints, such as fixed utility functions and neuro‐symbolic submission layers, ensures generative AI remains controllable by preventing self‐improvement beyond designer intent.
Saeed Banaeian Far +3 more
wiley +1 more source

