Document Detail

Dynamical quorum-sensing in oscillators coupled through an external medium.
MedLine Citation:
PMID:  23087494     Owner:  NLM     Status:  Publisher    
Many biological and physical systems exhibit population-density dependent transitions to synchronized oscillations in a process often termed "dynamical quorum sensing". Synchronization frequently arises through chemical communication via signaling molecules distributed through an external medium. We study a simple theoretical model for dynamical quorum sensing: a heterogenous population of limit-cycle oscillators diffusively coupled through a common medium. We show that this model exhibits a rich phase diagram with four qualitatively distinct physical mechanisms that can lead to a loss of coherent population-level oscillations, including a novel mechanism arising from effective time-delays introduced by the external medium. We derive a single pair of analytic equations that allow us to calculate phase boundaries as a function of population density and show that the model reproduces many of the qualitative features of recent experiments on BZ catalytic particles as well as synthetically engineered bacteria.
David J Schwab; Ania Baetica; Pankaj Mehta
Related Documents :
24229214 - Closing the loop: lamellipodia dynamics from the perspective of front propagation.
23004034 - Glassy dynamics in relaxation of soft-mode turbulence.
24671304 - Implementing electrostatic polarization cannot fill the gap between experimental and th...
24484024 - Quantum and thermal dispersion forces: application to graphene nanoribbons.
21786874 - Acoustic shock wave propagation in a heterogeneous medium: a numerical simulation beyon...
17308614 - Single-shot spatial-coherence measurement of 13 nm high-order harmonic beam by a young'...
Publication Detail:
Journal Detail:
Title:  Physica D. Nonlinear phenomena     Volume:  241     ISSN:  0167-2789     ISO Abbreviation:  Physica D     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-10-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9890573     Medline TA:  Physica D     Country:  -    
Other Details:
Languages:  ENG     Pagination:  1782-1788     Citation Subset:  -    
Dept. of Molecular Biology and Lewis-Sigler Institute, Princeton University, Princeton, NJ 08854.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Work Values of University Students in Chinese Mainland, Taiwan, and Hong Kong.
Next Document:  Estimation of the disease-specific diagnostic marker distribution under verification bias.