Citologia de duas bambusáceas brasileiras

Itaguai: Old Habits and New Practices in a Brazilian Land Settlement.

“…I hypothesized that, in the absence of a really thorough programme of agricultural credit, practice adoption would be first and foremost related to variables such as socio-economic status, income and wealth. Several authors have reported that the big proprietors in Brazil, once they saw the need for a certain innovation, readily adopted it (Medina, 1963;Prado, 1963;Geiger, 1956). Kahl (1965, p. 32) found that socio -economic status had more influence on a man's views about modern values than whether he lived in a metropolis or a provincial town.…”

“…57. Medina (1963) found in the State of Sao Paulo that the adoption of agricultural machinery permitted landowners to dismiss many of their permanent labourers, thereafter meeting their seasonal demand for labour with the unemployed from a nearby city. 58.…”

Protective Therapies for Monomethylhydrazine: Comparison of Pyridoxine and Physical Restraint in the Monkey

“…Indeed, treatment with pyridoxine prevents hydrazine-induced seizures, presumably by restoring the synthesis of these inhibitory transmitter substances (Medina, 1963;Clark et al, 1968).…”