Results 21 to 30 of about 341,650 (296)

Effect of randomness and anisotropy on Turing patterns in reaction-diffusion systems [PDF]

open access: yes, 1997
We study the effect of randomness and anisotropy on Turing patterns in reaction-diffusion systems. For this purpose, the Gierer-Meinhardt model of pattern formation is considered. The cases we study are: (i)randomness in the underlying lattice structure,
A. Gierer   +15 more
core   +2 more sources

The occurrence of prime numbers revisited

open access: yesGECONTEC: Revista Internacional de Gestión del Conocimiento y la Tecnología, 2016
Based on an arithmetical and autocatalytic approach, the authors propose a solution for the occurrence of prime numbers. Exact arithmetical calculations are provided for: the closest prime to any given positive integer (or any number of bigger or smaller
Ernesto Tapia Moore, José Tapia Yañez
doaj   +4 more sources

Bifurcation and chaos in a discrete activator-inhibitor system

open access: yesAIMS Mathematics, 2023
<abstract><p>In this paper, we explore local dynamic characteristics, bifurcations and control in the discrete activator-inhibitor system. More specifically, it is proved that discrete-time activator-inhibitor system has an interior equilibrium solution.
A. Q. Khan   +5 more
openaire   +2 more sources

Functional Modulation of Gene Expression by Ultraconserved Long Non-coding RNA TUC338 during Growth of Human Hepatocellular Carcinoma

open access: yesiScience, 2018
Summary: TUC338 is an ultraconserved long non-coding RNA that contributes to transformed cell growth in hepatocellular carcinoma (HCC). Genomic regions of TUC338 occupancy were enriched in unique or known binding motifs homologous to the tumor ...
Hui-Ju Wen   +5 more
doaj   +1 more source

Oncogenic TYK2 P760L kinase is effectively targeted by combinatorial TYK2, mTOR and CDK4/6 kinase blockade

open access: yesHaematologica, 2022
Tyrosine kinase 2 (TYK2) is a member of the Janus kinase/signal transducer and activator of transcription pathway, which is central in cytokine signaling.
Katharina Woess   +19 more
doaj   +1 more source

A feedback quenched oscillator produces turing patterning with one diffuser. [PDF]

open access: yesPLoS Computational Biology, 2012
Efforts to engineer synthetic gene networks that spontaneously produce patterning in multicellular ensembles have focused on Turing's original model and the "activator-inhibitor" models of Meinhardt and Gierer. Systems based on this model are notoriously
Justin Hsia   +4 more
doaj   +1 more source

The Origin And Loss Of Periodic Patterning In The Turtle Shell [PDF]

open access: yes, 2014
The origin of the turtle shell over 200 million years ago greatly modified the amniote body plan, and the morphological plasticity of the shell has promoted the adaptive radiation of turtles. The shell, comprising a dorsal carapace and a ventral plastron,
Cebra-Thomas, J. A.   +9 more
core   +2 more sources

Benzoxazolone Carboxamides: Potent and Systemically Active Inhibitors of Intracellular Acid Ceramidase [PDF]

open access: yesAngewandte Chemie International Edition, 2014
AbstractThe ceramides are a family of bioactive lipid‐derived messengers involved in the control of cellular senescence, inflammation, and apoptosis. Ceramide hydrolysis by acid ceramidase (AC) stops the biological activity of these substances and influences survival and function of normal and neoplastic cells.
Pizzirani, Daniela*   +11 more
openaire   +5 more sources

Stability analysis of reaction-diffusion models on evolving domains: the effects of cross-diffusion [PDF]

open access: yes, 2015
This article presents stability analytical results of a two component reaction-diffusion system with linear cross-diffusion posed on continuously evolving domains.
Barreira, Raquel   +2 more
core   +2 more sources

Reaction diffusion processes on random and scale-free networks [PDF]

open access: yes, 2004
We study the discrete Gierer-Meinhardt model of reaction-diffusion on three different types of networks: regular, random and scale-free. The model dynamics lead to the formation of stationary Turing patterns in the steady state in certain parameter ...
De Wit A.   +4 more
core   +2 more sources

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