Results 31 to 40 of about 4,123 (113)

Biosurfactant production by Pseudomonas aeruginosa isolated from mining waste: From genomic analysis to development of a polymeric composite for removal of hexavalent chromium

open access: yesPolymer International, EarlyView.
Biosurfactant was produced by Pseudomonas aeruginosa using andiroba waste from Amazonia. A biosurfactant–alginate composite (Alg/BioS) was successfully synthesized via ionotropic gelation, and achieved up to 70% Cr6+ removal from water. Abstract Environmental contamination by heavy metals represents a significant challenge due to their persistence in ...
Paulo Diniz Austriaco   +11 more
wiley   +1 more source

Body Size Regulates Niche Overlap Asymmetry in the Subtropical Andes Rain Shadow: Isotopic Paleoecology of Oligocene South American Ungulates

open access: yesIntegrative Zoology, EarlyView.
This study provides the first isotopic analysis of Oligocene mammals from Quebrada Fiera, Mendoza, Argentina, filling a major gap in South American paleontology. It reveals a latitudinal gradient in aridity due to the Andean rain shadow and highlights the role of (semi)permanent water bodies in sustaining diverse herbivore communities. Additionally, it
Dánae Sanz‐Pérez   +4 more
wiley   +1 more source

(Ultra)high‐Pressure Metamorphism in Sedimentary Versus Basaltic Rocks: Insights From a Variscan Mélange in the South Carpathians

open access: yesJournal of Metamorphic Geology, EarlyView.
ABSTRACT Reconstructing the pressure–temperature–time (P–T–t) evolution of (ultra)high‐pressure rocks is essential for constraining subduction and collisional dynamics. Subduction zones are often investigated using basic eclogites, whereas nonbasic high‐pressure rocks remain comparatively understudied, potentially hindering a comprehensive ...
Otavio S. G. Silva   +7 more
wiley   +1 more source

Relato final do II Seminário Nacional sobre Cursos de Graduação em Geologia

open access: yesTerrae Didatica, 2015
O II Seminário Nacional sobre Cursos de Graduação em Geologia, promovido pelo Instituto de Geociências da Unicamp e pela Sociedade Brasileira de Geologia, realizou-se entre os dias 24 e 26 de abril de 2002 nas dependências da Universidade Estadual de ...
Celso Dal Ré Carneiro
doaj   +1 more source

Allometric patterns in Rhamphorhynchus muensteri and their role in the paleoecology, life habits, and taxonomic framework of pterosaurs

open access: yesJournal of Anatomy, EarlyView.
The Graphical Abstract ilustrates the different allometric pattern within different Pterosauria groups, highlighting how the allometry influences the flight and habits of Pterosauria. Abstract Pterosaurs were the first vertebrates to achieve powered flight, a result of various unique anatomical adaptations, and significant morphological diversity ...
Gabriela Menezes Cerqueira   +6 more
wiley   +1 more source

Traçando caminhos ao “geociências virtual”: reflexões sobre comunidades online de aprendizagem

open access: yesTerrae Didatica, 2015
O artigo insere-se nas discussões sobre os ambientes virtuais como espaço de comunicação, interação e trabalho colaborativo para o ensino-aprendizagem.
Gabriel Gerber Hornink   +2 more
doaj   +1 more source

Feldspar Albitization With Implications for Reservoir Quality Evolution of Eocene Turbidite Sandstones in Offshore Espírito Santo Basin, Eastern Brazil

open access: yesJournal of Petroleum Geology, EarlyView.
ABSTRACT The diagenetic albitization of plagioclase and K‐feldspar grains is a transformative process that significantly alters sandstone's detrital composition and formation water chemistry, impacting reservoir quality. In this study, Eocene turbidite sandstones from the offshore Espírito Santo Basin, Brazil, were investigated to elucidate the role of
Eveline E. Zambonato   +2 more
wiley   +1 more source

Desenvolvimento de recursos didáticos para o ensino de geociências para a Banca das Ciências e Experimentoteca da EACH/USP

open access: yesTerrae Didatica, 2015
O presente trabalho abrange a importância da divulgação e popularização da Ciência com o uso de modelos didáticos que expressem os conteúdos de Geociências. A divulgação e popularização da Ciência tem como cenário a Banca da Ciência, um projeto ligado ao
Caroline Bertocco Garcia   +2 more
doaj   +1 more source

Cenozoic tropical carbonate platforms in the Santos Basin, SE Brazilian Margin

open access: yesSedimentology, EarlyView.
ABSTRACT Tropical carbonate platforms accompanied the latitudinal shifts of the tropical belt throughout the Cenozoic. Their flat‐topped geometries were influenced by a specific set of processes, including climate and sea‐level changes, carbonate facies, tectonics and continental runoff.
Mateus Gama   +5 more
wiley   +1 more source

Editorial

open access: yesGeologia USP. Série Científica, 2023
Geologia USP. Série Científica - Revista do Instituto de Geociências, USP.
Daniel Machado
doaj   +4 more sources

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