Our study demonstrates the superiority of simulation in teaching obstetric residents initial neonatal resuscitation steps compared with a traditional lecture format. Skills are retained for upwards of 3-6 months. Refresher instruction by 6 months post-instruction may be beneficial.
In order to study the growth dynamics of proliferating and non‐proliferating cells utilizing discrete‐time state equations, the cell cycle was divided into a finite number of age compartments. In analysing tumor growth, the kinetic parameters associated with a retardation in the growth rate of tumors were characterized by computer simulation in which the simulated results of the growth curve, the growth fraction, and the mean generation time were adjusted to fit the experimental data. The cell age distribution during the period of growth was obtained and by a linear transformation of the state transition matrices, was employed to specify the cell size and DNA content distributions. In an application of the model, the time‐course behavior of cell cycle parameters of Ehrlich ascites tumor is illustrated, and the parameters important for the transition of cells in the proliferating compartment to the non‐proliferating compartment are discussed, particularly in relation to the G1‐G0 and G2‐G0 transitions of non‐cycling cells as revealed by the variation of cell size distribution.
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