20.500.12556/DKUM-35835 Periodic calcium waves in coupled cells induced by internal noise We show that internal stochasticity, originating from finite cell sizes and related small numbers of reactant ions participating in the dynamics, is able to extract a characteristic spatial frequency of calcium waves in the medium of diffusively coupled cells. Internal noise is thereby the only agent acting on the system. As the spatial periodicity is best pronounced at an intermediate level of stochasticity the reported phenomenon is thus a novel observation of internal noise spatial coherence resonance in biochemical tissue-like media. In addition, results shed light on the stochastic versus deterministic nature of dynamics at the cellular and tissue level. noise spatiotemporal noise intensity spatial resonance chemical media stochastic systems biofizika hrup intenziteta hrupa prostorska resonanca stohastični procest true true true Angleški jezik Slovenski jezik Članek v reviji 2012-06-07 12:28:00 2012-06-07 12:28:00 2024-05-30 03:30:30 2019-07-10 14:02:28 2007 0 0 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 577 15257352 0009-2614 URN:SI:UM:DK:FVLJYVKM http://www.sciencedirect.com/science/journal/00092614 1 https://dk.um.si/Dokument.php?lang=slv&id=46856 RAZ_Perc_Matjaz_2007.pdf RAZ_Perc_Matjaz_2007.pdf 1 70D13222B28355BD9B5FAA157FB4BC45 5ba5ca124fb3dcdc9debfef497587ae3b94016b540ea26d6dc70f74c09ac33aa 98f3e158-1d8b-11ef-8334-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=179866 Fakulteta za naravoslovje in matematiko 0 0 0