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A biologic model of parasystole
The American Journal of Cardiology, 1979The electrotonic interactions of a parasystolic pacemaker with ventricular responses to the normal pacemaker across an area of depressed excitability were simulated in a model consisting of strands of canine Purkinje fibers mounted in a sucrose gap preparation.
J, Jalife, G K, Moe
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Models of biological systems and biological processes
Pure and Applied Chemistry, 1994Abstract
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A model of biological indeterminacy
Journal of Theoretical Biology, 1972Abstract It is a known mathematical fact that the introduction of statistical indeterminacy by means of quantum mechanics (including statistical mechanics) has not loosened up theoretical physics enough so that theoretical biologists could go essentially beyond reductionism. A different type of indeterminacy, designated biological, is introduced here,
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The development of largangians for biological models
Bulletin of Mathematical Biology, 1982A modern theory of the calculus of variations is used to form necessary and sufficient conditions for the existence of a Lagrangian representation of a system of first-order ordinary differential equations. There exists a theorem to the effect that when a system of ordinary differential equations is variationally self-adjoint, the fulfillment of such ...
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Thermus thermophilus as biological model
Extremophiles, 2009Thermus spp is one of the most wide spread genuses of thermophilic bacteria, with isolates found in natural as well as in man-made thermal environments. The high growth rates, cell yields of the cultures, and the constitutive expression of an impressively efficient natural competence apparatus, amongst other properties, make some strains of the genus ...
Felipe, Cava +2 more
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Models of dispersal in biological systems
Journal of Mathematical Biology, 1988In order to provide a general framework within which the dispersal of cells or organisms can be studied, we introduce two stochastic processes that model the major modes of dispersal that are observed in nature. In the first type of movement, which we call the position jump or kangaroo process, the process comprises a sequence of alternating pauses and
Othmer, Hans G., Dunbar, S. R., Alt, W.
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1983
“It’s a curious sensation, isn’t it? Really thrilling … but why? You know, I get the feeling—or rather I see it—as if the ball is made of elastic, as if it’s expanding into an ellipse … shall we say trying to free itself?”
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“It’s a curious sensation, isn’t it? Really thrilling … but why? You know, I get the feeling—or rather I see it—as if the ball is made of elastic, as if it’s expanding into an ellipse … shall we say trying to free itself?”
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Biological Model of ED01 Hepatocarcinogenesis
Toxicology and Applied Pharmacology, 1996The ED01 bioassay on 2-acetylaminofluorene (2-AAF)-induced hepatocarcinogenesis in BALB/c mice was analyzed using a biologically based, two-mutation model of the oncogenic process. Computer simulations indicate that 2-AAF-induced hepatocarcinogenesis has both genotoxic and promotional components.
C C, Travis, C, Zeng, J, Nicholas
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