Economic Performance
Mostrando 1-12 de 803 artigos, teses e dissertações.
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1. Economic performance of off-grid photovoltaic systems for irrigation
RESUMO As energias renováveis são alternativas para substituição dos combustíveis fósseis sendo crucial para a sustentabilidade do setor agrícola, e importante alternativa para o bombeamento de água na irrigação. Assim, a compreensão das receitas e despesas são fundamentais na viabilidade econômica. Com isso, o objetivo do presente estudo foi ve
Revista Brasileira de Engenharia Agrícola e Ambiental. Publicado em: 2023
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2. A Rational Procedure to Increase Selectivity in the Determination of an Elicitor as Salicylic Acid in Polygala Extracts Using Capillary Electrophoresis
Considering the economic potential of secondary metabolites, researches have been focusing several strategies in order to explore and enhance the accumulation of these metabolites in plant matrices in a broad context. One of those strategies is the development of suitable methodologies for the determination of some elicitors, such as salicylic acid (SA). Sin
Journal of the Brazilian Chemical Society. Publicado em: 2022
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3. Yield performance and agro-economic efficiency of radish-arugula intercropping under green manuring and planting density
RESUMO O cultivo de rabanete com rúcula em sistemas consorciados em faixas está crescendo em ambientes semiáridos. O grande desafio tem sido avaliar se há eficiência agroeconômica no consórcio quando fertilizado com biomassa vegetal de espécies espontâneas do bioma Caatinga. Assim, o objetivo deste estudo foi avaliar a viabilidade produtiva e econô
Horticultura Brasileira. Publicado em: 2022
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4. Bioactive Bioflavonoids from Platonia insignis (Bacuri) Residues as Added Value Compounds
Platonia insignis fruit, popularly known as bacuri, is traditionally used in folk medicine for its anti-inflammatory and antioxidant properties. Therefore, this study determined the chemical composition and biological activities of the bacuri’s shell and seeds extracts, considered residues from its consumption and industrial uses. Four biflavonoids (GB-2a,
J. Braz. Chem. Soc.. Publicado em: 2021-04
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5. Nitrogen top-dressing fertilization of maize cultivated in single and twin-row systems
ABSTRACT The aim of this study was to evaluate the effects of cropping systems (single and twin-rows) and N fertilizer rates in the second top-dressing on the agronomic performance and relative economic returns of maize. The experiment was conducted in a randomized block design, with subplots and three repetitions. The plots were composed of two cropping sys
Rev. Ceres. Publicado em: 2021-02
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6. SPECIES-SPECIFIC EQUATIONS: GREATER PRECISION IN COMMERCIAL VOLUME ESTIMATION IN MANAGED FORESTS IN THE AMAZON
ABSTRACT The objective of this study was to analyze the performance of species-specific equations (SSEs) concerning generic ones in Annual Production Units (GEAPUs) and in a Forest Management Area (GEFMA) in the Brazilian Amazon. A total of 29,119 trees from 43 species were inventoried, harvested, and volumetric measurements were taken in ten APUs, with 10%
CERNE. Publicado em: 2020-09
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7. CONTROLLED RELEASE FERTILIZER IN THE ROOTING AND PERFORMANCE OF CLONES OF Paratecoma peroba
ABSTRACT Paratecoma peroba is a native forest species of great economic and ecological interest, currently at risk of extinction. In addition to the difficulty of finding adult individuals of this species, plant production is limited, so the use of mini-cuttings can facilitate the spread of P. peroba. Thus, the objective of this study was to analyse the effe
CERNE. Publicado em: 2020-06
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8. Internal Validation of a Risk Score for Prediction of Postoperative Atrial Fibrillation after Cardiac Surgery
Abstract Background: Postoperative atrial fibrillation (POAF) after cardiac surgery has great clinical and economic implications. Many attempts have been made to identify risk factors aiming at a better evaluation of prophylactic treatment strategies. Objective: To perform an internal validation of a risk score for POAF. Methods: A prospective cohort of 1
Int. J. Cardiovasc. Sci.. Publicado em: 2020-04
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9. Increased power efficiency in mining by using high-fidelity haul truck simulation
Abstract The current economic and political scenario in Brazil has allowed small, medium and large companies to adopt cost cutdown and productivity increase strategies. Diesel fuel consumption by off-highway haul trucks stands for one of the largest costs at the Sossego Mine operational management department. Based on this fact, as well as on the 8% increase
REM, Int. Eng. J.. Publicado em: 2020-03
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10. Foreign direct investment in developing economies A study on the productivity spillover effects in Latin America
Abstract Purpose The aim of this study was to investigate how the productivity spillover effects of foreign direct investment (FDI) in the Latin American economies are manifested. Specifically, the paper sought to identify the role of foreign presence and government intervention through an industrial policy on total factor productivity in Latin American cou
RAUSP Manag. J.. Publicado em: 2020-03
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11. Portfolio turnover and performance of equity investment funds in Brazil
RESUMO O objetivo deste trabalho foi analisar as relações entre turnover da carteira e desempenho de fundos de investimentos em ações no Brasil. Apesar dos poucos estudos publicados sobre o assunto, os estudos brasileiros até então identificados que trabalharam sobre a questão das alterações na carteira se limitaram a uma amostra muito restrita de d
Rev. contab. finanç.. Publicado em: 09/12/2019
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12. Antijesuitismo na Amazônia portuguesa (primeira metade do século XVIII)
RESUMO As pesquisas sobre a Amazônia portuguesa colonial costumam abordar, sobretudo, os períodos mais agitados daquela região, como o de atuação do padre Antônio Vieira no século XVII ou o período pombalino na segunda metade do século XVIII. Esta pesquisa estuda justamente uma parte da História do Maranhão e Grão-Pará negligenciada porque, apar
Rev. Bras. Hist.. Publicado em: 09/12/2019