Results 51 to 60 of about 20,400 (248)

Solubilidade e desintegracao de cimentos a base de agregados minerais contendo diferentes radiopacificadores

open access: yes, 2017
Jean Sérgio da Silvaa, Lucas da Fonseca Roberti Garciaa,*, Bruno Alexandre Pacheco de Castro Henriquesb,c, Cleonice da Silveira Teixeiraa, Eduardo Antunes Bortoluzzia a Departamento de Odontologia, Área de Endodontia, Centro de Ciências da Saúde ...
J. Silva   +4 more
semanticscholar   +1 more source

Estimation of recharge of the Guarani Aquifer system based on the application of the water-table fluctuation method in the Ibicui River-RS

open access: yesRevista Águas Subterrâneas, 2017
The estimation of groundwater recharge is determinant for the sustainable groundwater management. The recharge can be estimated using different methods according to the characteristics of the studied area, the spatial and temporal scales and data ...
Flora Würth Simon   +3 more
doaj   +1 more source

EMERGÊNCIA ESPIRITUAL À LUZ DA PSICOLOGIA TRANSPESSOAL

open access: yesCaminhos, 2020
O presente trabalho tem como objetivo ampliar a compreensão do processo de emergência espiritual, apresentar suas características, processos desencadeadores, sintomas, desafios no diagnóstico e terapêutica apropriada.
Tereza Cristina Bittencourt Villanueva   +1 more
doaj   +1 more source

The Stability of Manganese Oxides Under Laser Irradiation During Raman Analyses: II. Layer Structures

open access: yesJournal of Raman Spectroscopy, Volume 56, Issue 10, Page 1072-1088, October 2025.
Manganese oxides are important geomaterials with diverse technological applications. Here, we investigate the behaviour of the most common Mn oxides with layer structures under irradiation by a 532‐nm laser, with intensity ranging from 23 µW/µm2 to 36.8 mW/µm2.
Simone Bernardini   +4 more
wiley   +1 more source

Avaliação dos perfis minerais séricos, urinários e sedimentares de ovinos recebendo dieta calculogênica

open access: yes, 2016
A urolitiase obstrutiva em pequenos ruminantes e uma doenca metabolica de etiologia multifatorial com distribuicao mundial. A elevacao da concentracao urinaria de solutos, minerais ionizados (cristaloides) que formam cristais insoluveis e citada por ...
Thiago Arcoverde Maciel   +10 more
semanticscholar   +1 more source

Orbitally Paced Hydroclimate Changes in Western Amazonia Wetlands During the Middle Miocene

open access: yesGeophysical Research Letters, Volume 52, Issue 18, 28 September 2025.
Abstract Carbon cycling in tropical wetlands may have significantly influenced climate variability during past phases of global warmth, such as during hyperthermal events. However, poorly resolved age models for terrestrial sections hamper correlations with global events.
L. R. C. Duarte   +7 more
wiley   +1 more source

Structuration profonde dans la région de Bir M’Chergua (Nord-Est de la Tunisie). Implications hydrogéologiques

open access: yesEstudios Geologicos, 2018
[fr] La région de Bir M’Chergua sise à cinquante kilomètres de la capitale Tunis constitue un pôle économique important en Tunisie. Cependant la pénurie en eau résultante de la succession de nombreuses périodes de sécheresse a généré une notable ...
A. Hamed Ferjani   +4 more
doaj   +1 more source

Nem tudo que reluz é ouro: os desafios de cooperativas minerais em Minas Gerais

open access: yes, 2016
As areas de mineracao e garimpo representam um problema complexo para a gestao publica no Brasil, uma vez que se notam questoes ligadas a vulnerabilidade ambiental, social e economica.
A. S. Macedo   +3 more
semanticscholar   +1 more source

Using Q‐methodology for policy research and stakeholder engagement to strengthen public health in large‐scale mining in Mozambique

open access: yesSustainable Development, Volume 33, Issue 1, Page 1298-1314, February 2025.
Abstract Mining projects can have adverse effects on public health, potentially impacting the 2030 Sustainable Development Agenda. While environmental impacts are typically addressed through mandatory environmental impact assessments, public health consequences often receive inadequate attention, despite being a major concern for affected communities ...
Joschka J. Proksik   +4 more
wiley   +1 more source

Síntese e caracterização de compósito magnético nanoestruturado contendo óxido de manganês para remoção de íons Cd(II) do meio aquoso

open access: yesCerâmica, 2014
O tratamento de efluentes contendo cádmio é de grande interesse devido à persistência desse contaminante no meio ambiente e às graves doenças que pode causar ao homem.
A. P. Heitmann   +3 more
doaj   +1 more source

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