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Mostrando 1-12 de 774 artigos, teses e dissertações.
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1. Radiação térmica e a fórmula de Planck
In this paper, theoretical and experimental research on blackbody thermal radiation is discussed and historically ordered. The main thermal radiation equations following Planck’s revolutionary idea are obtained using the formalism of statistical mechanics. These equations, already well known, are deduced in a very detailed and didactic way in order to faci
Química Nova. Publicado em: 2022
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2. Evaluation of pulmonary nodules by magnetic resonance imaging sequences: which sequence will replace computed tomography?
SUMMARY OBJECTIVE: This study aimed to determine the role of magnetic resonance imaging in minimizing radiation exposure, especially in the follow-up of pulmonary nodules. METHODS: Patients who applied to our hospital between April 2013 and August 2018 for various reasons and had lung-mediastinal dynamic magnetic resonance imaging and thoracic computed tom
Revista da Associação Médica Brasileira. Publicado em: 2022
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3. Microstructural characteristics, properties, synthesis and applications of mullite: a review
Abstract Mullite, an intermediate phase of the binary alumina-silica system, is one of the most important phases of ceramic products containing alumina and silica in the initial composition. Its stoichiometry ranges from 3Al2O3.2SiO2 (3:2) to 2Al2O3.SiO2 (2:1) and its crystalline structure is orthorhombic, characterized by the presence of octahedral chains o
Cerâmica. Publicado em: 2022
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4. UNVEILING THE CONTEMPORARY IN VIRGINIA WOOLF
Abstract This article aims to discuss Virginia Woolf’s critical appraisal of the contemporariness of her contemporaries’ production while also probing the very idea of what constitutes “the contemporary”. “The Modern Essay (1921) serves as the frame for what Woolf dubbed “the contemporary dilemma”, which this article then traces in “How it St
Ilha Desterro. Publicado em: 2021-04
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5. Desempenho de modelos para determinação de vazão utilizando placas de orifício
RESUMO Objetivou-se neste estudo avaliar três metodologias para a estimativa da vazão de água em placas de orifício, quantificando erros nas determinações de vazão a fim de sugerir a faixa de medição apropriada para cada condição avaliada. Foram avaliados dois modelos de placa de orifício (diâmetros nominais 100 e 150 mm) com restrição de 50%
Rev. bras. eng. agríc. ambient.. Publicado em: 2021-01
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6. The effect of facial expression on emotional contagion and product evaluation in print advertising
Abstract Purpose The purpose of this paper is to investigate the emotional contagion theory in print ads, and expand the literature of smiling to different type of smiles and gender congruency. Emotional contagion happens when an emotion is transferred from a sender to a receiver by the synchronization of emotions from the emitter. Drawing on emotional cont
RAUSP Manag. J.. Publicado em: 2020-09
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7. Escuela Media, Trabajo Joven, y hegemonía en la Argentina neodesarrollista: una mirada estructural
Abstract The following article presents a series of findings that arise from statistical analysis of enrollment data originated in Argentina’s Secondary Education system, which is then linked to youth employment indicators for the same period. Those are interpreted making use of theoretical approaches provided by critical currents of Sociology of Education
Educ. Pesqui.. Publicado em: 20/01/2020
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8. Antibacterial Effects of Cuminum cyminum Extract Against Enterococcus Faecalis Biofilms From Clinical Isolates
Abstract Objective: To compare the antibacterial efficacy of Cuminum cyminum (cumin) extract and 2% chlorhexidine. Material and Methods: E. faecalis was isolated from non-vital teeth with chronic apical abscess. Samples were then bred in the ChromAgar medium. Subsequently, E. faecalis bacteria’s DNA extraction was performed. DNA was then amplified by con
Pesqui. Bras. Odontopediatria Clín. Integr.. Publicado em: 13/01/2020
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9. Effect of Propolis on Streptococcus mutans Biofilm Formation
Abstract Objective: To evaluate the susceptibility of S. mutans during growth as a biofilm in the presence of different concentrations of propolis. Material and Methods: Three different concentrations of ethanolic extract of propolis (10%, 5%, and 2.5%) were used to evaluate its potential to attenuate the biofilm formation of S. mutans (ATCC 25175) on micr
Pesqui. Bras. Odontopediatria Clín. Integr.. Publicado em: 13/01/2020
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10. Ideal Concentration of Advanced-Platelet Rich Fibrin (A-PRF) Conditioned Media for Human Dental Pulp Stem Cells Differentiation
Abstract Objective: To discover the ideal concentration of Advanced Platelet Rich Fibrin (A-PRF) as modification of PRF, for human Dental Pulp Stem Cells (hDPSCs) differentiation. Material and Methods: hDPSCs were devided into five experimental groups: Group I (control group) consist of hDPSCs cultured in 10% FBS, Group II consist of hDPSCs cultured in 1%
Pesqui. Bras. Odontopediatria Clín. Integr.. Publicado em: 13/01/2020
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11. Alvorecer do Paradigma Sistêmico na Educação Médica
RESUMO A formação de médicos no Brasil seguia os moldes do projeto flexneriano até que o emergente Sistema Único de Saúde, com o diagnóstico da situação do setor saúde e a implantação de políticas de reorientação do modelo assistencial para um voltado à Atenção Básica, mostrou a necessidade de realinhar a formação médica às suas necess
Rev. bras. educ. med.. Publicado em: 13/01/2020
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12. Resenha do Livro: Pensamento Sistêmico: o Novo Paradigma da Ciência
RESUMO O livro Pensamento sistêmico: o novo paradigma da ciência exercerá profundas implicações sobre aqueles que desejam compreender as políticas públicas brasileiras para a educação médica, pois tal paradigma estende seus tentáculos para quase todas as áreas do cotidiano, influenciando nossos modos de ser e estar no mundo. Os dois capítulos da
Rev. bras. educ. med.. Publicado em: 13/01/2020