Repositório Institucional da Universidade Federal de Sergipe
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    Study on the action of molluscicide (Bayluscide-SRB) of Dynatech R/D company in ponds in northeast Brazil - Sergipe State

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    To study the action of molluscicide nine ponds were selected: 3 of them lying in Maruim municipality, 29 km far from north Aracaju, the State capital, and 6 ponds in Itabaianinha municipality, 118 km far from south Aracaju. This study was carried out for 16 months. Environmental parameters observed were those thought to have any influence on the planorbids and/or the molluscicide: water temperature, transparence, salinity, pH, dissolved oxygen, CO2, and the nutrients-phosphorus, nitrogen, potassium and calcium. Plancton microorganisms were also considered to observe Bayluscide action on them. SRB was used in a concentration of 6.25 kg per 1.000 [cubic metres] water, to achieve 1.0 ppm Bayluscide concentration according to the producer's instruction in Massachussett-USA.Rio de Janeiro, R

    Ecological observations on Biomphalaria straminea (Dunker, 1848) in areas of the northeast, Brazil

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    The different climatic regions determine the zoogeographic distribution of various animal species depending on their particular conditions and ecological preferences. The host schistosomiasis planorbid is one of these species. This paper deals with the distribution of Biomphalaria straminea in northeast Brazil. It starts from the analysis of different climatic peculiarities in this region, associated to limnological observation done by the author in three different hydric collections in the state of Sergipe. It has been concluded that this is an "eurióioca" species. Its broad ecological valence permits this species to survive in regions where climate asperties are evident, requiring behavior and physiological adaptations. The species survives in all northeast region, from "zona da mata", in the coast, to the semi-arid "sertão".Rio de Janeiro, R

    Literatura e Psicanálise

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    A decisão de exportar e a escolha de mercados de exportação: dos aspectos conceituais às práticas gerenciais nas empresas brasileiras produtoras de manufaturados

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    A contínua participação dos manufaturados na pauta das exportações brasileiras faz parte integrante da estratégia governamental para equilibrar o déficit de nosso balanço de pagamentos. O momento econômico internacional, e em particular a situação brasileira, tem levado nossos dirigentes a buscar novos mecanismos que acelerem o crescimento de nossas exportações neste importante segmento econômico

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