Zobrazeno 1 - 10 of 50 pro vyhledávání: '"Teresa Maria Fernandes Valente"'
1
Hydrochemistry and evolution of water quality in a context of aridity and increasing agriculture in three river sub-basins of Santiago Island (Cape Verde)
Autor: Isabel Margarida Horta Ribeiro Antunes, J. Pamplona, Nemias Gonçalves, Teresa Maria Fernandes Valente
Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Geosciences
Volume 11
Issue 6
Geosciences, Vol 11, Iss 263, p 263 (2021)
In regions under development and facing recurrent droughts, increasing the area of irrigated agriculture may create additional disruption in water resources management. The present study was focused on three river sub-basins with the highest agricult
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::185ab38473eb56e4323d306ac202e8df
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2
WATER SUPPLY AND ACCESS TO SAFE WATER IN DEVELOPING ARID COUNTRIES
Autor: Nemias Gonçalves, J. Pamplona, Teresa Maria Fernandes Valente
Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
The supply of drinking water is one of the major concerns in semi-arid and arid climates, mainly in developing countries. The present study reviews the situation of the water supply in a West African coast country, the archipelago of Cape Verde, with
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ed14227acfbf6c3a88fed5a416b9bfc
https://doi.org/10.25177/jeses.4.2.ra.497
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3
Water-Rock Interaction and Potential Contamination Risk in a U-Enriched Area
Autor: Margarida Antunes, Paula Carvalho, Teresa Maria Fernandes Valente, A. C. T. Santos, Teresa Albuquerque, R. J. S. Teixeira
Publikováno v: Geosciences
Volume 11
Issue 5
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação
instacron:RCAAP
Geosciences, Vol 11, Iss 217, p 217 (2021)
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
The Picoto mining area is in the village of Vilar Seco (Viseu), central Portugal. Mineralization occurs mainly in quartz veins with meta-torbernite and uranophane and some U-bearing minerals, cutting a Variscan granite. Exploitation took place in two
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4
Algae in acid mine drainage and relationships with pollutants in a degraded mining ecosystem
Autor: Núria Flor-Arnau, Teresa Maria Fernandes Valente, Patrícia Gomes, J. Pamplona, Renato F. Henriques, Felipe Macías, Teresa Albuquerque
Publikováno v: Minerals
Volume 11
Issue 2
Minerals, Vol 11, Iss 110, p 110 (2021)
Minerva: Repositorio Institucional de la Universidad de Santiago de Compostela
Universidad de Santiago de Compostela (USC)
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação
Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
instname
Acid mine drainage represents an extreme environment with high concentrations of potentially toxic elements and low pH values. These aquatic habitats are characterised by harsh conditions for biota, being dominated by acidophilic organisms. The study
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d1db06c53dc20c8e9ef7738c5a10ce1
https://hdl.handle.net/1822/72537
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5
Investigação em Ambiente em tempos de pandemia
Autor: Teresa Maria Fernandes Valente
[Excerto] Não querendo ser repetitiva, eis que a COVID-19 nos pôs a viver uma crise sem precedentes na nossa geração e com efeitos em todos os aspetos de uma Sociedade Humana que se globalizou. Por indissociabilidade do terrível significado do t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea363b74f3a0e5cf8f83e5bc28f2eb61
https://doi.org/10.21814/uminho.ed.24.15
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6
Spatial Mobility of U and Th in a U-enriched Area (Central Portugal)
Autor: Margarida Antunes, A. C. T. Santos, Teresa Albuquerque, Teresa Maria Fernandes Valente
Publikováno v: Applied Sciences
Volume 10
Issue 21
Applied Sciences, Vol 10, Iss 7866, p 7866 (2020)
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação
Uranium and thorium are toxic in different environments. The exploitation of uranium mines and associated mine drainage leaching towards streams, sediments, and soils cause relevant pollution. The U-mine areas present high concentrations of potential
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7
Methodological approach for mineralogical characterization of tailings from a Cu(Au,Ag) skarn type deposit using QEMSCAN (Quantitative Evaluation of Minerals by Scanning Electron Microscopy)
Autor: D. Lattanzi, Teresa Maria Fernandes Valente, L. Salazar, O. M. Castellanos, P. Jaime, C. A. Rios, K. Guanira
Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Skarn type deposits are important potential resources for Cu, Au, and Ag as well as other strategic metals, which require accurate characterization of the mineralogy, texture and grade for successful processing and environmental management. The miner
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8
Photosynthetic pigments in acid mine drainage: Seasonal patterns and associations with stressful abiotic characteristics
Autor: Dulce Geraldo, Catarina Ribeiro, Patrícia Gomes, Teresa Maria Fernandes Valente
Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Acid mine drainage represents an extreme type of water pollution. The environments develop especial hydrochemical and ecological characteristics, such as high concentrations of acidity and low biodiversity, with dominance of acidophilic organisms. Ec
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52055a24884e2775d94fdc212170abf8
https://hdl.handle.net/1822/73078
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9
Addressing Quality and Usability of Surface Water Bodies in Semi-Arid Regions with Mining Influences
Autor: Teresa Maria Fernandes Valente, Paulo Pereira, Patrícia Gomes
Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Water resources management has considerable importance, specifically in the context of climate change. This subject has introduced new challenges in semi-arid regions with water quality problems, such as the Iberian Pyrite Belt, which is one of the l
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b1da8f37932386e4288727c15ce9d2b
https://doi.org/10.1007/s40710-018-0329-0
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10
Rare Earth Elements, Iron and Manganese in Ochre-precipitates and Wetland Soils of a Passive Treatment System for Acid Mine Drainage
Autor: J. Pamplona, M. A. Sequeira Braga, Maria Isabel Prudêncio, Rosa Marques, Teresa Maria Fernandes Valente
Publikováno v: Procedia Earth and Planetary Science. 17:932-935
The rare earth elements (REE) along with iron and manganese distribution in ochre-precipitates and wetland soils in a passive system for acid mine drainage treatment (Jales, Portugal) was studied. The results obtained by instrumental neutron activati
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