Environmental Security
Mostrando 1-12 de 87 artigos, teses e dissertações.
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1. Development of innovation routes for iron ore using high intensity magnetic separators
Abstract The mineral processing of low-grade iron ores commonly generates large volumes of slime, which are disposed as tailings. Modern mining requires strives to eliminate the use of tailings dams in a maximum effort to increase metallurgical recovery, the security and reduction of the operational cost. This research aims for the recovery of iron contained
REM - International Engineering Journal. Publicado em: 2022
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2. OVERWEIGHT IN ADOLESCENTS: FOOD INSECURITY AND MULTIFACTORIALITY IN SEMIARID REGIONS OF PERNAMBUCO
RESUMO Objetivo: Investigar o excesso de peso em adolescentes do Sertão e Agreste de Pernambuco, considerando a multifatoriedade dos determinantes do excesso de peso e as condições de insegurança alimentar e nutricional da região. Métodos: Estudo transversal, de base populacional, realizado no período de setembro a outubro de 2015. O estado nutric
Rev. paul. pediatr.. Publicado em: 25/11/2019
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3. Homegardens as a System for Restoration of Legal Reserves: Aspects of Forest Legislation
ABSTRACT The homegardens result from collective learning and fulfill environmental services, contributing to the agrobiodiversity conservation and food security. The present study analyzed whether legal mechanisms incorporate concepts on environmental services and if legal frameworks in the state of São Paulo include homegardens as a feasible system for res
Floresta Ambient.. Publicado em: 28/10/2019
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4. A confluência entre o “adequado” e o “saudável”: análise da instituição da noção de alimentação adequada e saudável nas políticas públicas do Brasil
No âmbito das políticas públicas brasileiras para alimentação e nutrição e para segurança alimentar e nutricional, a partir da virada do século XXI, observa-se que a alimentação deixou de ser adjetivada somente como “saudável” e passou também a ser referida como “adequada”. Essas noções vêm sendo construídas e defendidas socio-histor
Cad. Saúde Pública. Publicado em: 02/09/2019
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5. Improved drought tolerance in wheat is required to unlock the production potential of the Brazilian Cerrado
Abstract Improving rainfed wheat cultivation in central Brazil, where the Cerrado biome (Brazilian savanna) is predominant, remains a bottleneck for future increases in domestic wheat production. In the Cerrado, the limited water availability during the wheat-growing season is an obstacle to increase wheat yield. To address this issue, the physiological and
Crop Breed. Appl. Biotechnol.. Publicado em: 01/08/2019
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6. A Meta-Analysis of the Impact of Foliar Feeding of Micronutrients on Productivity and Revenue Generation of Forage Crops
RESUMO: A garantia de segurança alimentar frente ao aumento da população exige incremento proporcional da produção de leite e carne, que por sua vez depende da nutrição animal. Avaliar a adubação foliar com micronutrientes para produção de quantidades substanciais de forragem de boa qualidade deve ser um objetivo da agricultura moderna, com fins l
Planta daninha. Publicado em: 10/06/2019
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7. Surface-groundwater interaction in unconfined sedimentary aquifer system in the Brazil’s tropical wet region
RESUMO Sendo as águas subterrânea e superficial importantes componentes do sistema hidrológico, a determinação da sua interação é imprescindível para a gestão eficiente dos recursos hídricos por prognosticar as consequências de interferências, seja devido ao crescimento da demanda, seja devido às mudanças climáticas. Todavia, estudos cientí
RBRH. Publicado em: 28/02/2019
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8. Action of Canavalia ensiformis in remediation of contaminated soil with sulfentrazone
ABSTRACT This study evaluated the jack bean (Canavalia ensiformis) as a potential remediator of sulfentrazone in the soil. The experiment was conducted under field conditions in a complete randomised block design. The treatments consisted of soils with and without herbicide application as well as the absence and presence of C. ensiformis cultivation associat
Bragantia. Publicado em: 15/05/2017
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9. Ethnopedology of a Quilombola Community in Minas Gerais: Soils, Landscape, and Land Evaluation
ABSTRACT Quilombolas are Afro-brazilian rural peasants who descended from escaped slaves who tried to carve out territories of autonomy (called Quilombos) by collective organization and resistance. Despite many anthropological and ethnopedological studies, little research has been carried out to identify the agricultural practices and the knowledge of people
Rev. Bras. Ciênc. Solo. Publicado em: 06/02/2017
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10. Human envenomations caused by Portuguese man-of-war (Physalia physalis) in urban beaches of São Luis City, Maranhão State, Northeast Coast of Brazil
ABSTRACT INTRODUCTION: The clinical and epidemiological aspects associated with Portuguese man-of-war envenomation were investigated and characterized. METHODS: Data from recorded envenomation events between 2005 and 2013 were provided by the GBMar (Group of Firemen Maritime of Maranhão State) and SEMUSC (Municipal Secretary of Security with Citizenship
Rev. Soc. Bras. Med. Trop.. Publicado em: 2017-02
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11. SUSTENTABILIDADE NO USO DO FÓSFORO: UMA QUESTÃO DE SEGURANÇA HÍDRICA E ALIMENTAR
The phosphorus used as fertilizer in agriculture is extracted from phosphate rocks, which after extraction reacts with sulfuric acid, releasing phosphoric acid, a raw material for the fertilizer industry. Studies point to a possible depletion of world reserves of phosphate rock in the next 50-100 years. A phosphorus scarcity is closely linked to global food
Quím. Nova. Publicado em: 2016-07
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12. Principal environmental impacts on pipeline tracks as a result of mining operations and their mitigated actions
Abstract This study deals with the main environmental impacts and possible mitigation measures for many pipeline tracks, due to the mining of different substances in areas of interference between mining activities and mineral research and those resulting from construction and gas pipeline operation. By monitoring the identified interferences/disturbances, it
Rem: Rev. Esc. Minas. Publicado em: 2016-06