Results 21 to 30 of about 38,070 (212)
Terrae Didatica, 2021 Esta revisão objetiva elaborar diretrizes para aumentar a atratividade de investimentos no setor mineral brasileiro. Fundamenta-se em pesquisa bibliográfica e documental, consultas a diversas órgãos de governo e instituições privadas, visando diagnosticar a situação atual, diante das potencialidades e deficiências.
Cassio Roberto da Silva +1 more
openaire +1 more source
Geologia USP. Série Científica, 2004 As rochas vulcano-sedimentares do orógeno do Rio Alegre ocorrem no SW do Cráton Amazônico e compreendem rochas vulcânicas máficas e ultramáficas, rochas sedimentares químicas, além de rochas intrusivas máficas a félsicas.
João Batista de Matos +4 more
doaj +1 more source
Hydrophysical Database for Brazilian Soils (HYBRAS) and Pedotransfer Functions for Water Retention
Vadose Zone Journal, Volume 17, Issue 1, Page 1-17, 2018., 2018 Core Ideas We propose a Hydrophysical Database for Brazilian Soils (HYBRAS). Data in HYBRAS comprise 445 soil profiles, with 1075 samples of Brazilian soils. We compared the accuracy of water retention estimates based on climate‐based PTFs. In general, the Brazilian PTFs performed better than the temperate models for HYBRAS.
Marta Vasconcelos Ottoni +4 more
wiley +1 more source
Paleoceanography and Paleoclimatology, Volume 41, Issue 8, August 2026.Abstract The Rio Grande Rise (RGR) is a major submarine feature in the South Atlantic that plays an important role in regional oceanographic dynamics. This study presents new U‐Pb geochronology of sedimentary rocks from the RGR, offering direct age constraints on carbonate and apatite embedded within Fe‐Mn crusts and associated foraminifera fossils ...
Giovanna Orletti Del Rey +8 more
wiley +1 more source
Case Reports in Surgery, Volume 2014, Issue 1, 2014., 2014 Sialolithiasis is a pathologic condition that affects 60 million people per year, which is caused by the presence of calcified structures, named sialoliths, inside the salivary glands and their salivary ducts. Despite the large incidence of sialolithiasis, its etiology is still unknown.
Ademir Franco +7 more
wiley +1 more source
Águas minerais de Santa Catarina [PDF]
, 2000 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico.Esta pesquisa representa uma análise hidrogeológica das águas minerais de Santa Catarina. Em função de suas características físico-químicas, modo de ocorrência e relações
Coitinho, João Batista Lins
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Confirming the impact origin of the São Miguel do Tapuio structure, northeastern Brazil
Meteoritics &Planetary Science, Volume 61, Issue 7, Page 1263-1287, July 2026.Abstract The São Miguel do Tapuio structure (SMT) is a remarkable, nearcircular feature of about 21 km diameter, centered at 5°37.6′ S, 41°23.3′ W in Piauí state, northeastern Brazil. The structure is located within the sedimentary strata of the Paleozoic–Mesozoic Parnaíba Basin and predominantly comprises sandstones of the Devonian Pimenteiras and ...
Alvaro Penteado Crósta +9 more
wiley +1 more source
Molecular Characterization of TP53 Gene in Human Populations Exposed to Low‐Dose Ionizing Radiation
BioMed Research International, Volume 2013, Issue 1, 2013., 2013 Ionizing radiation, such as that emitted by uranium, may cause mutations and consequently lead to neoplasia in human cells. The TP53 gene acts to maintain genomic integrity and constitutes an important biomarker of susceptibility. The present study investigated the main alterations observed in exons 4, 5, 6, 7, and 8 of the TP53 gene and adjacent ...
Igor Brasil-Costa +9 more
wiley +1 more source
Distribuição dos minerais pesados ao longo do curso inferior do rio Itajaí-Açu/SC e sua correlação sedimentar com a planície costeira, praia e plataforma continental interna adjacente [PDF]
, 2007 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas. Programa de Pós-Graduação em Geografia.Os minerais pesados são compostos químicos detríticos oriundos de rochas ígneas, metamórficas e sedimentares ...
Souza, Denis Roberto de
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