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Mostrando 1-12 de 138 artigos, teses e dissertações.
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1. Upconversion 3D Printed Composite with Multifunctional Applications for Tissue Engineering and Photodynamic Therapy
Upconversion nanoparticles (UCNPs) are suitable materials for bioapplications due to their ability to emit visible light under near infrared (NIR) excitation, in the biological transparency range. Polycaprolactone(PCL)-based scaffolds are widely used in tissue engineering in combination with inorganic compounds to improve bioactivity and osteoconductive prop
J. Braz. Chem. Soc.. Publicado em: 2020-04
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2. Avaliação dos sistemas metroviários nas emissões de CO2: análise comparativa das emissões por automóveis, ônibus e metrôs
RESUMO O setor de transportes é responsável por uma parcela das emissões globais de dióxido de carbono (CO2). Os estudos científicos publicados sobre emissões de CO2 pelos sistemas de transportes de passageiros tratam basicamente de resultados envolvendo apenas as emissões relacionadas ao consumo dos combustíveis dos automóveis e ônibus. Nos metrô
Eng. Sanit. Ambient.. Publicado em: 25/11/2019
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3. Spatial and temporal distribution of Gymnorhamphichthys rondoni (Gymnotiformes: Rhamphichthyidae) in a long-term study of an Amazonian terra firme stream, Leticia - Colombia
ABSTRACT Weakly electric fishes continually emit electric organ discharges (EOD) as a means of communication and localization of objects in their surroundings. Depending on water conductivity, the amplitude of the electric field generated is known to increase with decreases in electrical conductivity of the water. In Amazonian terra firme streams, water cond
Neotrop. ichthyol.. Publicado em: 24/10/2019
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4. Urban resilience in the face of fossil fuel dependency: the case of Rio de Janeiro’s urban mobility
Resumo Cenários de longo prazo para a mobilidade dentro das cidades geralmente negligenciam o desafio do fornecimento de energia e como os riscos implícitos podem afetar os serviços de mobilidade urbana. Altos níveis de uso de transporte privado e dependência de combustíveis fósseis tendem a prevalecer nas aglomerações urbanas das cidades em muitas
urbe, Rev. Bras. Gest. Urbana. Publicado em: 03/10/2019
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5. ROOT PROTRUSION IN QUALITY EVALUATION OF CHIA SEEDS
RESUMO O teste de protrusão radicular é um teste de vigor, baseando no princípio de que sementes com alto vigor emitem a raiz primária mais rápido em comparação com as menos vigorosas. A chia é uma planta propagada por sementes, sendo motivo de pesquisa pelos seus benefícios a saúde, mas com poucas informações técnicas sobre a cultura. O objetiv
Rev. Caatinga. Publicado em: 09/05/2019
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6. Desvendando a radiação Hawking
Resumo Buracos negros clássicos, descritos pela relatividade geral, podem absorver partículas, mas não podem emiti-las. Entretanto efeitos quânticos fazem com que buracos negros passem a emitir partículas e comportem-se como um corpo com temperatura diretamente proporcional a κ, a gravidade superficial do buraco negro em questão. Este artigo tem o ob
Rev. Bras. Ensino Fís.. Publicado em: 11/03/2019
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7. Water-Soluble Benzazole Dyes Fluorescent by ESIPT: Structural Characterization, Photophysical Properties and Its Application as a Probe for Direct Staining of Helminths
A series of four water-soluble benzazole dyes that emit fluorescence by the excited state intramolecular proton transfer (ESIPT) mechanism were structurally characterized by Fourier transform infrared spectroscopy (FTIR), 1H and 13C nuclear magnetic resonance (NMR) attached proton test (APT) and mass spectrometry. Their photophysical properties were systemat
J. Braz. Chem. Soc.. Publicado em: 2019-03
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8. Investigation of Electromagnetic Radiation Emission during Sheet Metal Incremental Micro Forming
Edge dislocations within the plastic zone ahead of a crack tip form accelerated electric line dipoles which give rise to the electromagnetic radiation (EMR) emissions in metal and alloys. This paper reports an experimental investigation to determine EMR radiation during incremental microforming of a thin aluminum sheet. The EMR signals emit from aluminum gra
Mat. Res.. Publicado em: 18/12/2017
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9. On the distinctive call of a threatened phenotype of Allobates femoralis (Anura: Aromobatidae) and its recognition by allopatric conspecific males
ABSTRACT The brilliant-thighed frog [Allobates femoralis (Boulenger, 1884)]; is distributed across the Amazon basin and aggregates several allopatric evolutionary lineages, some of which present variation in their advertisement calls. In 2009, an unregistered call phenotype was discovered in the region of Altamira and Vitória do Xingu, State of Pará, Brazi
Iheringia, Sér. Zool.. Publicado em: 09/10/2017
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10. DEVELOPMENT OF A TRACEABILITY MODEL APPLIED TO GOAT AND SHEEP MEAT PRODUCTION
ABSTRACT: The goat and sheep meat producer chain has developed in last years, thus, it is imperative to organize and structure the supply chain and to adopt reliable policies for products' traceability, as a tool to achieve these requirements. The study aimed to make a management program with a traceability model for goat and sheep meat production, with emph
Eng. Agríc.. Publicado em: 2017-09
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11. Esclerose múltipla de início tardio: atenção a uma população que envelhece
RESUMO Esclerose múltipla de inicio tardio (EMIT) caracteriza-se pelo início de sintomas aos 50 ou mais anos de idade, representando 4,5% dos pacientes com esclerose múltipla (EM). Este estudo descreve as características clínicas de pacientes com EMIT acompanhados num centro de EM em São Paulo. Dados foram obtidos através de análise de prontuário de
Arq. Neuro-Psiquiatr.. Publicado em: 2017-07
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12. Synthesis and Characterization of Nb2O5:La3+,Eu3+ Phosphors Obtained by the Non-Hydrolytic Sol-Gel Process
The phosphor-converted light-emitting diode technique is an important solid-state illumination strategy. Sulfide-based materials are the most often employed red phosphors, but they are chemically unstable and present lower efficiency in comparison to the blue and green phosphors. Therefore, it is important to find a new red phosphor source that can emit inte
J. Braz. Chem. Soc.. Publicado em: 2015-12