Results 1 to 10 of about 174,525 (297)

Comparison of two acidophilic sulfidogenic consortia for the treatment of acidic mine water [PDF]

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
Sulfate-reducing bioreactors are a biotechnological alternative for the treatment of acid mine drainage (AMD). In this study, two separate bioreactors with pH and temperature-controlled (Bio I and II) were operated with two different acidophilic ...
Tayná Diniz Frederico   +10 more
doaj   +2 more sources

Enhancing iron biogeochemical cycling for canga ecosystem restoration: insights from microbial stimuli [PDF]

open access: yesFrontiers in Microbiology
IntroductionThe microbial-induced restoration of ferruginous crusts (canga), which partially cover iron deposits and host unique ecosystems, is a promising alternative for reducing the environmental impacts of the iron mining industry.MethodsTo ...
Rayara do Socorro Souza da Silva   +9 more
doaj   +2 more sources

Vitaminas e minerais na nutrição de bovinos

open access: yesRevista Colombiana de Ciencia Animal Recia, 2023
A alimentação é o fator que mais onera um sistema de produção animal. Assim, a utilização de diferentes estratégias de alimentação dos animais ainda é o grande desafio da nutrição animal, principalmente, levando-se em consideração as exigências ...
Joyanne Mirelle De Sousa Ferreira   +9 more
semanticscholar   +1 more source

TD 2768 - Minerais estratégicos e críticos : uma visão internacional e da política mineral brasileira

open access: yesTexto para Discussão, 2022
As matérias-primas minerais estão na base de grande parte das atividades econômicas, em algum estágio de suas cadeias produtivas, e a tendência é de que, cada vez mais, estejam nessa posição.
Fernando Ferreira de Castro   +2 more
semanticscholar   +1 more source

Poder de compra, preço e consumo de fertilizantes minerais: uma análise para o centro-oeste brasileiro

open access: yesRevista de Economia e Sociologia Rural, 2021
Resumo: Os fertilizantes minerais estão entre insumos de maior contribuição para o aumento da produtividade agrícola no Brasil. No entanto, a dependência de recursos naturais escassos e do uso extensivo de energia para a sua síntese faz com que a ...
Cristiane Mitie Ogino   +3 more
semanticscholar   +1 more source

Recursos minerais do Brasil

open access: yesTerrae 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 ...
Cássio Roberto Borges da Silva   +1 more
semanticscholar   +1 more source

Revisiting a place‐based policy: Transformations in Northeast Brazil

open access: yesGrowth and Change, Volume 52, Issue 4, Page 2412-2436, December 2021., 2021
Abstract Despite being the second most populated region in Brazil, the Northeast has persistently accounted for a small share of national income. A well‐known attempt to develop the region was made in 1959 with the creation of SUDENE, a big push type of place‐based policy resulting in an intensification of industrial investments.
Solmaria Halleck Vega
wiley   +1 more source

Public participation, indigenous peoples’ land rights and major infrastructure projects in the Amazon: The case for a human rights assessment framework

open access: yesReview of European, Comparative &International Environmental Law, Volume 30, Issue 2, Page 184-196, July 2021., 2021
Abstract The recognition of land title and demarcation of indigenous peoples’ ancestral lands and the guarantee of the rights of consultation and free, prior and informed consent in the context of large infrastructure projects represent some of the major challenges for indigenous peoples and communities in the Amazon States.
Ricardo Pereira
wiley   +1 more source

Timor‐Leste economic survey: The end of petroleum income

open access: yesAsia &the Pacific Policy Studies, Volume 8, Issue 2, Page 253-279, May 2021., 2021
Abstract As Timor‐Leste nears the end of its petroleum‐exporting era, the transition to a sustainable economy has become even more challenging due to partisan political competition, disastrous flooding and the pandemic. This article describes the current economic context, and deteriorating trends. After a brief discussion of the political situation and
Charles Scheiner
wiley   +1 more source

Importância nutricional das vitaminas e minerais na infecção da COVID-19

open access: yesResearch, Society and Development, 2020
No final de 2019, surgiu em Wuhan, o novo coronavírus 2019, responsável pela doença COVID-19, causador de um quadro clínico múltiplo, variando de sintomas inespecíficos leves à pneumonia grave com danos na função orgânica.
Wenna Lúcia Lima   +8 more
semanticscholar   +1 more source

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