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Showing papers by "Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto published in 1984"


Journal ArticleDOI
TL;DR: In the three salivary gland regions of Bradysia hygida the patterns of polypeptide synthesis, as revealed by electrophoresis and fluorography, are very stable during the fourth larval instar until about 30 h before the pupal molt.
Abstract: In the three salivary gland regions of Bradysia hygida (Diptera, Sciaridae) the patterns of polypeptide synthesis, as revealed by electrophoresis and fluorography, are very stable during the fourth larval instar until about 30 h before the pupal molt. At this age the patterns of polypeptide synthesis start to undergo marked changes. The striking correlations between these changes and the development of two distinct groups of DNA puffs support the proposal that DNA puffs are causally related to the synthesis of specific proteins in the salivary glands.

43 citations


Journal ArticleDOI
TL;DR: In this article, the synthesis and properties of dimethylformamide and dimethylsulphoxide adducts of tin(II) perchlorates are described and their coordination is discussed from molar conductance measurements, infrared and nmr spectra.

4 citations