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Experimental validation of a critical domain size in reaction-diffusion systems with Escherichia coli populations


, : Experimental validation of a critical domain size in reaction-diffusion systems with Escherichia coli populations. Journal of the Royal Society, Interface 2(4): 379-387

In a one-variable, finite size reaction-diffusion system, the existence of a minimal domain size required for the existence of a lion-zero stead.), state is predicted, provided that the reaction-diffusion variable has a fixed value of zero at the boundaries of the domain (Dirichlet boundary conditions). This type of reaction diffusion model can be applied in population biology, in which the finite domain of the system represents a refuge where individuals can live normally immersed in a desert, or region where the conditions are so unfavourable that individuals cannot live in it. Building on a suggestion by Kenkre and Kuperman, and using non-chemotactic E. coli populations and a, quasi-one-dimensional experimental design, we were able to find a minimal size (approximately 0.8 cm) for a refuge immersed in a region irradiated with intense UV light. The observed minimal size is in reasonable agreement with theory.

US$19.90

PMID: 16849196

DOI: 10.1098/rsif.2005.0054


Other references

Sirotnak, F.M.; Lunt, R.B.; Hutchison, D.J., 1963: Alteration In Transformability Of Diplococcus Pneumoniae After The Acquisition Of Genetic Determinants Inducing Resistance To Erythromycin. Sirotnak, Francis M. (Sloan-Kettering Institute for Cancer Research, New York, N.Y.), Ramona B. Lunt, and Dorris J. Hutchison. Alteration in transformability of Diplococcus pneumoniae after the acquisition of genetic determinants inducing resistan...

Napal Lecumberri, S.; Rajab, R.; Vallejo Negro, J.; Encinas Baltasar, B.; Gonzalez Sanchez, F.J.; Hernando Albistegui, A.; D.L.s Heras Moro, T.M.rtin, 1998: Iatrogenic urological complications. OBJECTIVE: The purpose of this paper is to emphasize that despite the undeniable advantages of urological instrumentation (insertion of a ureteral catheter double-J catheter; percutaneous nephrostomy, etc.), it also carries some risks and complica...

Scascitelli, M.; Pacchierotti, F., 2003: Effects of lindane on oocyte maturation and preimplantation embryonic development in the mouse. Lindane, an organochlorine insecticide, is suspected of preimplantation embryonic toxicity based on in vitro experiments with bovine and murine embryos. To verify this hypothesis in vivo we tested lindane for developmental alterations during early...

Odeh, M., 1993: Unilateral pulmonary oedema during thoracotomy. Anaesthesia and Intensive Care 21(6): 887-888

Li, Z.W.; Bijl, W.A.; van Nispen, J.W.; Brendel, K.; Davis, T.P., 1990: Neuropeptide processing in regional brain slices: effect of conformation and sequence. The central enzymatic stability of des-enkaphalin-.gamma.-endorphin and its synthetic analoges [cycloN.alpha.6, C.delta.11].beta.-endorphin-[6-17] and [Pro,Lys(Ac)9]-.beta.-endorphin(6-17] was studied in vitro using a newly developed, regionally d...

Tejmar, J.; Vamberova, M., 1961: Time estimation in obese children. Time estimation in 7 obese children showed a closer correlation with the character of EEG curves than with the clinical picture, and there are certain parallels with some features of personality. The results emphasize the complexity of the phenome...

Bush G.A.; Maitski T.; York D.; Klock J.; Abel C.; White M.; Urnovitz H., 1987: Single use diagnostic system for rapid colorimetric detection of hiv 1 antibody in human serum or plasma specimens suds hiv 1 ab test. Clinical Chemistry 33(6): 905-906

Kotova, G.N., 1961: Reflex control of venous tone by arterial and venous pressures. There is usually a reflex fall in tone in a perfused vein (colic, branch of the mesenteric or femoral) as well as a simultaneous fall in the arterial pressure (sometimes in the venous pressure also) when a clamp is applied to a vein (portal, mesen...

Jerger, J., 2009: Hearing loss and cognitive effort. Journal of the American Academy of Audiology 20(2): 88-88

Paltrinieri, S., 1935: Bovine Contagious Abortion and Undulant Fever in Sicily. Brucellosis is wide-spread in Sicilian cattle, sheep and goats, but in cattle the incidence of abortion is much lower than in northern European countries. This is not due to any peculiarity in the breed of cattle kept on the island and, although c...