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Mostrando ítems 61-70 de 2024
Financing for sustainable development: visions and proposals for action from a Latin American and Caribbean perspective
(ECLAC, 2003-04)
Foreword Throughout the preparatory process for the World Summit on Sustainable Development and at the Summit itself, which was held in Johannesburg, South Africa, from ...
Solvent Extraction Studies for Separation of Zn(II) and Mn(II) from Spent Batteries Leach Solutions
(Taylor & Francis, 2014-03)
This study aims to assess the possibility of using solvent extraction processes for separating zn(ii) and mn(ii) dissolved in aqueous solutions obtained by acid bioleaching of spent alkaline and zn-c batteries. in this ...
Membranes based on polyacrylamide coatings on metallic meshes prepared by a two-steps redox polymerization. Performance for oil-water separation and biofouling effects
(Elsevier Science, 2020-04)
Superhydrophilic oil-water separation membranes were prepared based on chemical (non-photoinduced) polymerization of acrylamide on metal meshes. Membranes were characterized by surface morphological analysis (SEM and AFM), ...
Functional Self-Limitation of State Authority
(Universidad del Zulia, 2020)
An ecological economic interpretation of the Jevons effect
(ELSEVIER SCIENCE BVAMSTERDAM, 2012)
This article develops an ecological economic interpretation of the Jevons effect. Moreover, it is argued that under the neoclassical paradigm there are no elements with which to foresee the long-term existence of this ...
Micronutrient dynamics in the forest biomass in succession stages of a seasonal deciduous forest, RS, Brazil
(IPEF-INST PESQUISAS ESTUDOS FLORESTAIS, 2010)
There is a great need of research to assess the behavior of micronutrients in natural forests of southern Brazil. Do to this need, the objective of this work was to study the levels and amounts of micronutrients in forest ...
Recent advances in photodegradation of antibiotic residues in Water
Antibiotics are widely present in the environment due to their extensive and
long-term use in modern medicine. The presence and dispersal of these compounds in
the environment lead to the dissemination of antibiotic ...
Estabilidade de agregados em Latossolos sob plantas de cobertura em rotação com soja e milho
(2016-01-01)
The objective was to evaluate the effect of different covers on the stability of soil aggregates in two areas of Oxisols, grown in rotation with crops of soybean and corn. The experiments were installed in Votuporanga, São ...
Drivers and barriers to successful solid waste management: assessing through an aggregated indicator
(2022-01-01)
Solid waste management is the main topic of the circular economy and remains a challenge for public management, because despite the recent economic downturn in Brazil, some indicators still need to be improved. This study ...