Results 1 to 10 of about 362 (170)
Assessing Rainfall Erosivity with Artificial Neural Networks for the Ribeira Valley, Brazil [PDF]
International Journal of Agronomy, 2010 Soil loss is one of the main causes of pauperization and alteration of agricultural soil properties. Various empirical models (e.g., USLE) are used to predict soil losses from climate variables which in general have to be derived from ...
Reginald B. Silva +3 more
doaj +2 more sources
Earthworm species in Musa spp. plantations in Brazil and worldwide [PDF]
ZooKeys, 2021 Bananas and plantains are major commodity/food crops that represent an important habitat for earthworms, although so far, no review is available on earthworm communities associated with banana/plantain crops worldwide. The Vale do Ribeira region is among
Marcus Vinicius Cremonesi +4 more
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Recent occurence of human infection by Rocio arbovirus in Ribeira Valley, Brazil [PDF]
Revista do Instituto de Medicina Tropical de São Paulo, 1989 The presence of IgM antibodies to Rocio in sera of two children from rural area of Ribeira Valley, Brazil, was detected by MAC-ELISA. This new arbovirus of the Flaviviridae family was responsible for an extensive encephalitis epidemic that occurred in ...
Lygia Busch Iversson +2 more
doaj +3 more sources
Ethnography, ethnobiology and natural history: narratives on hunting and ecology of mammals among quilombolas from Southeast Brazil [PDF]
Journal of Ethnobiology and Ethnomedicine, 2020 Background As a leading practice of Homo sapiens’ environmental experience for hundreds of millennia, hunting continues to evoke key research inquiries in the fields of archaeology, human ecology, and conservation biology.
Helbert Medeiros Prado +3 more
doaj +2 more sources
Archaeological research in the middle/lower valley of Ribeira de Iguape, São Paulo.
Revista do Museu de Arqueologia e Etnologia, 1998 Since 1981, the middle/upper Ribeira valley, which is located the extreme Southwest portion of São Paulo State, has been studied through systematic archaeological research. Surveys performed in a general area in the Middle valley and in specific areas in
Erika Marion Robrahn-González +1 more
doaj +3 more sources
Ciência e Agrotecnologia, 2005 Este trabalho buscou caracterizar a piscicultura na Região do Vale do Ribeira quanto aos sistemas de manejo. Estudaram-se quarenta e duas pisciculturas sendo que, destas, 36 praticam o sistema semi-intensivo e seis o sistema intensivo, com os seguintes ...
Daniela Castellani, Walter Barrella
doaj +2 more sources
Human disease in ribeira valley, brazil caused by caraparu, a group c arbovirus - Report of a case [PDF]
Revista do Instituto de Medicina Tropical de São Paulo, 1987 The clinical and laboratory data of a disease in a resident of Ribeira Valley, São Paulo State, southeastern Brazil, caused by an agent close or identical to Caraparu, a Group C arbovirus, was described.
Lygia Busch Iversson +4 more
doaj +4 more sources
New age determinations for the Banhadão and Itapirapuã complexes in the Ribeira Valley, southern Brazil [PDF]
Brazilian Journal of Geology, 2018 : New age determinations by Ar-Ar and U-Pb SHRIMP for the alkaline complexes of Banhadão and Itapirapuã that occur in the Ribeira Valley are in agreement with the previously radiometric K-Ar ages available in literature.
Celso de Barros Gomes +5 more
doaj +5 more sources
Revista da Sociedade Brasileira de Medicina Tropical, 2010 INTRODUÇÃO: este estudo teve como objetivo identificar fatores ambientais e sociais determinantes na incidência da leishmaniose tegumentar americana no Vale do Ribeira no período de 1998 a 2006.
Alessandra Ferreira da Silva +2 more
doaj +2 more sources
Adsorption of lead (Pb) in weathered tropical soil (Ribeira Valley region - Brazil) [PDF]
Earth Sciences Research Journal, 2020 ABSTRACT Lateritic soils have been widely used in the construction of landfill base liners for solid waste disposal. On the other hand, there is little practice in the use of cambisols (less clayey) for this finality. The use of local soil for the construction of liners in order to waterproof and retain contaminants represents an alternative to control
Marques, Jéssica P. +4 more
openaire +2 more sources