Strong Fields
Mostrando 1-12 de 144 artigos, teses e dissertações.
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1. Possible Effects of Oriented Magnetic Fields on Human Blood Pressure
Abstract Background: There have been scattered reports indicating the possibility that applied magnetic fields can lower human blood viscosity, which has been considered as encouraging for decreasing blood pressure as a result of greater fluidity. Additional motivation comes from partial studies in animals showing some response of vascular variables to magn
International Journal of Cardiovascular Sciences. Publicado em: 2022
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2. Gender disparities in rural education attainments and agricultural landownership from the perspective of Sustainable Development Goals (SDGs): evidence from 16 Sub-Sahara African countries
Abstract Purpose The purpose of this study is to explore the relationship between gender disparities in rural education attainments and agricultural landownership (ALO) in Sub-Sahara Africa with Sustainable Development Goal (SDG) perspective. Design/methodology/approach This study uses SDG indicators interactions and pairwise correlation analysis. Finding
RAUSP Management Journal. Publicado em: 2022
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3. The Stabilization of Asphaltenes in Different Crude Fractions: A Molecular Approach
The conditions of petroleum extraction may allow asphaltenes to precipitate, causing deposition that clogs wells, pipes and equipment, consequently reducing productivity. In this work, the solubility parameters and precipitation onset of polar fractions of heavy crudes from Brazilian fields were estimated using a simplified system of n-heptane/toluene mixtur
J. Braz. Chem. Soc.. Publicado em: 2021-04
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4. Sustentabilidade e CTS: o necessário dialógo na/para a Educação em Ciência em tempos de crise ambiental
RESUMO O presente trabalho traz resultados complementares de uma pesquisa anterior, que buscou responder: em que termos se observa a inserção do tema (in)sustentabilidade em trabalhos de teses e de dissertações que se caracterizaram como análise de práticas/ações de Educação em Ciências/Educação Científica e Tecnológica, com enfoque CTS, na ab
Educ. rev.. Publicado em: 31/10/2019
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5. Pseudosection modeling and U-Pb geochronology on Piranga schists: role of Brasiliano Orogeny in the Southeastern Quadrilátero Ferrífero, Minas Gerais, Brazil
ABSTRACT In the Southeastern Quadrilátero Ferrífero, a package of metapelitic rocks previously attributed to the Archean Rio das Velhas Supergroup crops out in Piranga locality. This study presents the mineral chemistry and U-Pb-Hf zircon geochronology on foliated staurolite-garnet mica schists. Garnet and staurolite index minerals are syn- to post-kinemat
Braz. J. Geol.. Publicado em: 21/10/2019
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6. Estratificação horizontal da educação superior no Brasil: Desigualdades de classe, gênero e raça em um contexto de expansão educacional
Resumo O acesso ao ensino superior é fundamental para diminuir as desvantagens de pessoas com origens nos grupos menos privilegiados, na medida em que aumenta as chances de mobilidade social ascendente. A literatura sobre estratificação educacional nos ensina que tanto o acesso aos diferentes tipos de modalidade ofertada (bacharelados, licenciaturas, curs
Tempo soc.. Publicado em: 25/04/2019
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7. Two-Dimensional Numerical Model of the Fracture Process in Steel Fibre Reinforced Concrete with the Continuum Strong Discontinuity Approach and Functional Data Analysis
Abstract This paper presents the formulation of a two-dimensional numeri-cal model able to describe the fracture process in structural mem-bers of steel fibre reinforced concrete (SFRC) from the volume ratio of the fibres and the mechanical properties of the compo-nents: a concrete matrix and a set of steel fibres with a random orientation. The relationship
Lat. Am. j. solids struct.. Publicado em: 08/04/2019
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8. Competitive Capacity and Rhizosphere Mineralization of Organic Matter During Weed-Soil Microbiota Interactions
RESUMO: A competição entre plantas daninhas e culturas é um dos principais fatores responsáveis por perdas de produtividade nos campos agrícolas. Esta revisão teve como objetivo apresentar e discutir como a interação entre plantas daninhas e microrganismos pode afetar a capacidade competitiva de plantas daninhas, bem como as propriedades físico-quí
Planta daninha. Publicado em: 18/02/2019
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9. Desdoblamiento de la transformación martensítica en un acero F82H de activación neutrónica reducida
ABSTRACT One of the most promising solutions to global energy supply is nuclear fusion. This process, which is implemented in nuclear fusion reactors (from which one of the first designs was the Tokamak), involves deuterium-tritium plasmas at very high temperature, confined in vacuum chambers of toroidal shape under the influence of strong magnetic fields. T
Matéria (Rio J.). Publicado em: 19/07/2018
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10. Responses of water mite assemblages (Acari) to environmental parameters at irrigated rice cultivation fields and native lakes
ABSTRACT Many studies have revealed that water mite communities can be affected by the physical and chemical parameters of the water. The similarity between the water ‘mite assemblages in local water bodies and in irrigated rice areas can be a way to measure the water conditions, enabling an assessment of the anthropic impact in the environment. The aim of
Zoologia (Curitiba). Publicado em: 23/10/2017
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11. Top Human Resources Managers Views on Trade Union Action in Brazilian Corporations
Abstract This article presents the perception of human resource (HR) top managers at strategic level in Brazilian corporations regarding labor union activity. It is a quantitative study about the perception of 354 experienced HR top managers on the unionization of employees, influence of the union on the organization, recognition of the union for labor negot
BAR, Braz. Adm. Rev.. Publicado em: 13/02/2017
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12. Numerical Description of Hot Flow Behaviors at Ti-6Al-2Zr-1Mo-1V Alloy By GA-SVR and Relative Applications
Hot compression tests of as-cast Ti-6Al-2Zr-1Mo-1V alloy in a wide temperature range of 1073-1323 K and strain rate range of 0.01-10 s-1 were conducted by a servo-hydraulic and computer-controlled Gleeble-1500 machine. The hot flow behaviors of Ti-6Al-2Zr-1Mo-1V alloy show highly non-linear relationships with strain, strain rate and temperature. In order to
Mat. Res.. Publicado em: 29/09/2016