منابع مشابه
Inside dynamics of pulled and pushed fronts
We investigate the inside structure of one-dimensional reaction-diffusion traveling fronts. The reaction terms are of the monostable, bistable or ignition types. Assuming that the fronts are made of several components with identical diffusion and growth rates, we analyze the spreading properties of each component. In the monostable case, the fronts are classified as pulled or pushed ones, depen...
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The concept of pulled fronts with a cutoff epsilon has been introduced to model the effects of the discrete nature of the constituent particles on the asymptotic front speed in models with continuum variables (pulled fronts are the fronts that propagate into an unstable state, and have an asymptotic front speed equal to the linear spreading speed v* of small linear perturbations around the unst...
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Dormant tumors awaken hat happens during tumor remission? After chemotherapy, tumor cell numbers may be reduced, or surviving cells may enter an altered, dormant state. Evidence for dormancy now comes from Catherine Shachaf, Dean Felsher (Stanford University, Stanford, CA), and colleagues. In their mouse model, liver tumors can be forced into dormancy and then reawakened at will. As in previous...
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ژورنال
عنوان ژورنال: Relations industrielles
سال: 2005
ISSN: 1703-8138,0034-379X
DOI: 10.7202/011338ar