Titlebook: Methodical Problems in Early Detection Programmes; Symposium held by th E. Walter,A. Neiß Conference proceedings 1985 Springer-Verlag Berli

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Deborah J. Moyaangements in two or three dimensions are also found, see for example [5]. Cells interact with adjacent cells in various distinct ways. For example, signaling between cells may occur via diffusion through gap junctions [352, 230] or by membrane-bound proteins, juxtacrine signaling [339, 340, 471].

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R. Chen,N. Mantel,R. R. Connellysport in the long-time large-scale parabolic limit. In general, this approximation is not appropriate for problems involving propagating fronts. The basic idea is that the kinetic term in the RD equation with KPP kinetics is very sensitive to the tails of a density profile. These tails are typically

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A. Neißs but not at others, or systems where individuals readily cross the boundary but the region outside the patch is partially hostile, or a combination of the above. In this chapter we deal with completely hostile boundaries and calculate the critical patch size for different geometries, reproduction p

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Computer Simulation and the Practical Planning of Cervical Cancer Screening Programmes,There are numerous studies of population groups which indicate that screened populations have less disease than unscreened. Such comparisons can be based on differences between geographic locations (Miller . 1976, Cramer 1974), temporal changes (Hakama, 1982) and disease rates in screened and unscre