61 research outputs found
O saber local e os dilemas relacionados à validação e aplicabilidade do conhecimento científico em áreas rurais
Fecundity of Biomphalaria straminea and B. glabrata in the laboratory: a twelve-month comparative study
In the present comparative study a Biomphalaria straminea sample from Picos (Piauí) showed expressive advantages related to fecundity over a B. glabrata sample from Belo Horizonte (Minas Gerais) such as: higher egg-mass production in 10 out of 12 months of study; higher egg production in all months of study; higher egg per egg-mass ratio in 11 out of 12 months of study; 66% of the egg-masses containing more than 20 eggs while in B. glabrata 70% of the egg-masses showed less than 20 eggs; three times less empty egg capsules than B. glabrata; attainning maximum fecundity in half the time required by B. glabrata. Mortality however was higher and sooner in B. straminea, suggesting higher semelparity in this species than in B. glabrata, a possibility that requires confirmation through long-term studies with other samples of both species. This first finding of a B. straminea sample more fecund than B. glabrata is discussed in relation to other data from the literature, and some recommendations are made on the quantification of fecundity of planorbid snails
Percepção das condições de trabalho em uma tradicional comunidade agrícola em Boa Esperança, Nova Friburgo, Rio de Janeiro, Brasil
A interpretação dos profissionais de saúde acerca das queixas de "nervos" no meio rural: uma aproximação ao problema das intoxicações por agrotóxicos
Comunicação relacionada ao uso de agrotóxicos em região agrícola do Estado do Rio de Janeiro
Information and education in schistosomiasis control: an analysis of the situation in the State of Minas Gerais, Brazil
There is no relationship between Paraoxonase serum level activity in women with endometriosis and the stage of the disease: an observational study
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