Insert your card https://dormaire.com/stmap_64u3483.html betamethasone valerate cream 0.1 over the counter  As long ago as 1960, pioneering work by Prof Denis Noble, of Oxford University, gave us the first mathematical models of how cardiac cells behaved. Within two decades, the complete range of electrical, chemical, and mechanical processes behind the contraction of a heart-muscle cell had been captured in the form of around 30 equations. Using them, it became possible to create a computer model of a beating heart cell and then, eventually, to simulate the pulse of the billions of cells in a virtual heart.