Download e-book for iPad: A bidomain threshold model of propagating calcium waves by Thul R., Smith G. D., Coombes S.

By Thul R., Smith G. D., Coombes S.

We current a bidomain fire-diffuse-fire version that allows mathematical research of propagating waves of increased intracellular calcium () in residing cells. Modeling unlock as a threshold strategy permits the categorical development of touring wave options to probe the dependence of wave velocity on physiologically vital parameters comparable to the edge for unencumber from the endoplasmic reticulum (ER) to the cytosol, the speed of resequestration from the cytosol to the ER, and the whole [] (cytosolic plus ER). apparently, linear balance research of the bidomain fire-diffuse-fire version predicts the onset of dynamic wave instabilities resulting in the emergence of waves that propagate in a back-and-forth demeanour. Numerical simulations are used to verify the presence of those so-called 'tango waves' and the dependence of wave velocity at the overall [].

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The2~st automated procedure seems to be that of Levine and Wright. The results of the various authors are summarized below. CLASS I a (6) (I) e Ref. 153 (5) Ref. 151(3) Ref. 055429 a (6) (III) e (Analytic) Ref. 05546(6) Ref. 055 (2) Ref. 89(10) Ref. 24 Not shown above are certain individual diagrams in Class IV, V, and VI which have been computed by more than one group. The agreement between the various groups for these diagrams is of §he same general quality as that indicated in the compilation above.

69 E . I LlE=(LlF~. I-Pb, 5g7/ 2 - 4f5/2' in eV) (LlF~. I-Pb. ) STATUS OF QED EXPERIMENTS 27 As a final topic, recent progress has been made on muonic hydrogen. There has been theoretical work70 on calculating the fine and hyperfine structure of p-p (and (p-He)+), which is shown in Figure 38. The fine structure is dominated qy electron vacuum polarization and we note the inversion of the 2S 1/2 and 2P 1/2 levels as compared to hydrogen. t, atom to study from the viewpoint of QED. MUON Ie HYDROGEN (",- p) ....

2, 3 Helpful discussion with S. Brodsky is gratefully acknowledged. This work was supported in part by the United States Atomic Energy Commission. 54 N. M. KROLL FoarNOTES 1. S. Brodsky, "The Present and Future State of Quantum Electrodynamics," Atomic Physics 2 (Proceedings of the Second International Conference on Atomic Physics) Plenum Press, 1971. 2. B. E. Lautrup, A. Peterman, and E. 4 (1972). This is the most recent of a number of ;xcellent rev~ews of the comparison between theory and the high precision experiments.

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A bidomain threshold model of propagating calcium waves by Thul R., Smith G. D., Coombes S.

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