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Uranium metabolism associated with ontogenetic growth of birds: case studies with broilers and ducks
(Scientific Research, 2014)
Cobb broilers and domestic ducks, both one-day-old, were treated using ration doped with 20 ppm of uranyl nitrate. Uranium concentrations in the tibia (μg-U/g-bone) were measured by neutron activation analysis as function ...
Uranium levels in the diet of São Paulo City residents
(Elsevier B.V., 2006-07-01)
Natural levels of uranium in the diet of São Paulo City residents were studied, and radionuclide concentrations were measured by the fission track method on samples of typical adult food items. This information was used ...
Uranium levels in the diet of São Paulo City residents
(Elsevier B.V., 2006-07-01)
Natural levels of uranium in the diet of São Paulo City residents were studied, and radionuclide concentrations were measured by the fission track method on samples of typical adult food items. This information was used ...
Uranium metabolism associated with ontogenetic growth of birds: case studies with broilers and ducks
(Scientific Research, 2016)
Uranium metabolism associated with ontogenetic growth of birds: case studies with broilers and ducks
(Scientific Research, 2016)
Uranium levels in the diet of São Paulo City residents
(Elsevier B.V., 2014)
A comparative study of aquifer systems occurring at the Paraná sedimentary basin, Brazil: U-isotopes contribution
(2013-01-01)
The radioactivity due to 238U and 234U in three aquifer systems occurring within the Paraná sedimentary basin, South America, has been investigated. Uranium is much less dissolved from fractured igneous rocks than from the ...
The U-isotopes modeling in aquifers from Pocos de Caldas plateau, Brazil
(Springer, 2005-08-01)
U-modeled groundwater residence times were estimated by changes in U-234/U-238 activity ratio (AR) and U content of groundwaters from Pocos de Caldas city situated at the Pocos de Caldas alkaline massif, Brazil. The estimated ...
U-ages in soils and groundwater evidencing wet periods 400-600 kyr ago in southeast Brazil
(Elsevier B.V., 2007-07-01)
U-238 and its radiogenic daughter U-234 have been utilized for dating soil formation and groundwater residence time during the last 1.5 million years, in this case based on the U-clissolution/precipitation occurring during ...