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Mostrando 1-12 de 88 artigos, teses e dissertações.
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1. Broadband Antennas Based on the Double Moebius Strip
Abstract The family of new antenna designs based on the double Moebius strip principle is proposed in this article. Three possible options of the power supply port location had been reviewed in this respect: the cut external strip with the signal port located directly in the cut area is used; the continuous rings without discontinuities are applied, with the
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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2. O quarto de Ceci: paisagem, natureza-morta e desejo em O guarani, de José de Alencar
Resumo Este artigo explora duas linhas contrastivas e complementares de representação da natureza em O guarani (1857), de José de Alencar, que são a paisagem e a natureza-morta, em especial esta última. Gênero que atinge seu clímax no século 17 nos Países Baixos, a natureza-morta passa ao primeiro plano da pintura ao valorizar características como
Alea. Publicado em: 11/11/2019
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3. ADOLESCÊNCIA EM DEBATE: CONTRIBUIÇÕES TEÓRICAS À LUZ DA PERSPECTIVA HISTÓRICO-CULTURAL
RESUMO. Nos estudos sobre adolescência, percebemos que, cada vez mais, a psicologia tem sido convocada a dar respostas a questões inerentes a esta fase específica do desenvolvimento. A perspectiva histórico-cultural, proposta por Lev Semenovich Vigotski e seus seguidores, tem se apresentado enquanto importante abordagem teórica para a compreensão do hu
Psicol. Estud.. Publicado em: 14/10/2019
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4. Relationship of Neotropical otter vestiges with environmental and anthropogenic factors
RESUMO A lontra neotropical, Lontra longicaudis é um mustelídeo semiaquático que usa seu habitat de diferentes formas. Para entender a influência relativa de fatores antrópicos e ambientais sobre a distribuição de lontras neotropicais, nós conduzimos monitoramentos sistemáticos de vestígios de lontras na região do médio Rio Guamá, Pará, Amazôn
Acta Amaz.. Publicado em: 12/08/2019
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5. Optimal fishing samplers to reveal the morphological structure of a fish assemblage in a subtropical tidal flat
RESUMO Os caracteres morfológicos das espécies são essenciais para avaliar a estrutura funcional de uma assembleia de peixes, uma vez que as diferenças entre elas são indicativas de distintas características ecológicas. De forma geral, as planícies de maré são importantes para assembleias de peixes por oferecerem áreas para alimentação, refúgio
Neotrop. ichthyol.. Publicado em: 11/03/2019
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6. Reduction of fuel consumption using driving strategy in agricultural tractor
RESUMO No momento da aquisição e utilização de um trator agrícola, o consumo de combustível pelo motor deve ser levado em conta pelo usuário, tendo em vista sua origem não renovável e o preço de comercialização. Estratégias adequadas de condução de tratores podem auxiliar os usuários a reduzirem os custos de produção. Nesse contexto, objeti
Rev. bras. eng. agríc. ambient.. Publicado em: 2019-02
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7. Composition, abundance, and diversity of limnetic cladocerans (Crustacea: Anomopoda and Ctenopoda) in a black-water lake in the Negro River basin, Amazonas State, Brazil
Abstract For the past 10 years, studies have contributed greatly to knowledge regarding the composition and distribution of the planktonic cladocerans of Tupé Lake in Amazonas State, Brazil, but comparisons between these studies have not been made, and this would increase the comprehension of the ecology of these organisms and their environment. Periodicall
Nauplius. Publicado em: 13/09/2018
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8. What are the main local drivers determining richness and fishery yields in tropical coastal fish assemblages?
ABSTRACT Seasonal ecological effects caused by temperature and photoperiod are typically considered minimal in the tropics. Nevertheless, annual climate cycles may still influence the distribution and abundance of tropical species. Here, we investigate whether seasonal patterns of precipitation and wind speed influence the structure of coastal fish assemblag
Zoologia (Curitiba). Publicado em: 26/04/2018
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9. Materials Selection of Optimized Titanium Alloys for Aircraft Applications
The aim of the present work was to explore the correlation between the physical metallurgy of titanium alloys and its main attributes to select optimized materials for structural aircraft applications in the landing gear beam. The Ashby's method was employed as the materials selection strategy to consolidate and evaluate the data collected from the current l
Mat. Res.. Publicado em: 19/02/2018
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10. Lichen simplex chronicus on the scalp: exuberant clinical, dermoscopic, and histopathological findings
Abstract: Lichen simplex chronicus is a skin disease that mostly affects female patients, with a peak incidence between ages 35 and 50 years. On the scalp, it appears as a single or multiple oval lesions, showing scaling and hair shaft loss or breakage. An important dermoscopic feature of the disease are the "broom fibers." Histopathology reveals the "hambur
An. Bras. Dermatol.. Publicado em: 2018-02
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11. Comparative analysis of diet composition and its relation to morphological characteristics in juvenile fish of three lutjanid species in a Mexican Pacific coastal lagoon
ABSTRACT The main goal of this research was to investigate the differences in diet composition among three species of the genus Lutjanus inhabiting a coastal lagoon as juveniles. The working hypothesis was that these species feed on a common base of food resources and therefore, some niche overlap is present in terms of general diet composition. However, cha
Neotrop. ichthyol.. Publicado em: 21/12/2017
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12. A Recursive Methodology to Determine the Mechanical Response of Thin Laminated Plates in Bending
ABSTRACT: The paper's objective is to present the development of a recursive methodology which is based on Adomian Decompostion Method in order to evaluate the mechanical response of thin laminated plates in linear bending. By the equivalent layer concept, the linear relation between the equivalent stresses and the strains, namely ABD matrix, is established.
J. Aerosp. Technol. Manag.. Publicado em: 2017-12