Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 2 de 2
Filtrar
Mais filtros










Tipo de estudo
Intervalo de ano de publicação
1.
Environ Pollut ; 110(3): 523-33, 2000 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-15092831

RESUMO

The hydrographic basin of the Atoya river, located in the Department of Chinandega, one of the main cotton producing regions in Nicaragua, is intensively contaminated by pesticides. Samples of river waters and sediments, as well as strategically selected wells have been analyzed to study variations in the concentrations of organochlorine and organophosphorus pesticide residues between the dry season (November-April) and the rainy season (May-June). Generally, higher concentrations of pesticides have been detected in the river waters and sediments in the dry season. DDT, DDD, DDE compounds and toxaphene are the most frequent organochlorine residues found in the water and sediment samples, while endrin, aldrin, dieldrin and lindane are mainly found in the waters of rivers and wells. Organophosphorus compounds were rarely detected. However, residues of ethion, methyl-parathion and ethyl-parathion were found in high concentrations in some river and well water samples. Generally, organochlorine compounds tend to accumulate in the fine grain-size fractions, rich in organic matter, except DDE, which concentrates basically in the coarse grain-size fractions.

2.
An. paul. med. cir ; 110(2): 5-10, 1983.
Artigo em Português | LILACS | ID: lil-17597

RESUMO

O aneurisma da aorta toraco-abdominal e apresentado como afeccao grave e de indicacao cirurgica. Os autores explicam sua experiencia inicial a aneurismectomia pela tecnica preconizada por Crawford, fazendo consideracoes a respeito do procedimento cirurgico e ressaltando as implicacoes anestesiologicas, bem como as dos preparo pre-operatorio


Assuntos
Pessoa de Meia-Idade , Humanos , Masculino , Aorta Abdominal , Aorta Torácica , Aneurisma Aórtico , Anestesia , Procedimentos Cirúrgicos Operatórios
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...