Fixed Expressions
Mostrando 25-26 de 26 artigos, teses e dissertações.
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25. The Evolution of One- and Two-Locus Systems
Assuming age-independent fertilities and mortalities and random mating, continuous-time models for a monoecious population are investigated for weak selection. A single locus with multiple alleles and two alleles at each of two loci are considered. A slow-selection analysis of diallelic and multiallelic two-locus models with discrete nonoverlapping generatio
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26. Typification and differentiation of medullary cells in the developing rat adrenal. A histochemical and electron microscopic study.
Various light and electron histochemical techniques were applied to the study of developing rat adrenal medulla. Adrenal glands or rudiments were examined at 14, 16, 18, 20 days of intrauterine life, at birth and at 1 week after birth. Material was processes for light microscopy as follows: (1) for the demonstration of cortical lipids by Sudan black B; (2) b