Lead and zink in permafrost forest-steppe soils by Chimitdorzhieva Erzhena, Korsunova Tsypilma, Nimbueva Ayuna, Chimitdorzhieva Galina, Baldanov Nimbu

“…It was revealed that the binding of heavy metals in the following descending series: Zn > Pb, which corresponds to the values of their clarks. Studies have shown that the binding of lead occurs mainly with the fulvic acids, and zinc -with the humic acids, which is associated with their chemical properties. …”
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Avaliação do estresse e das habilidades sociais na experiência acadêmica de estudantes de medicina de uma universidade do Rio de Janeiro by Eliane de Sousa Furtado, Eliane Mary de Oliveira Falcone, Cynthia Clark

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Essays in political economics and information acquisition by Reggiani, Giovanni

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