Mixed Mode
Mostrando 1-12 de 134 artigos, teses e dissertações.
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1. Inhibitory effects of L-3-phenyllacitc acid on the activity of mushnroom pholyphenol oxidase
Abstract Polyphenol oxidase is the popular enzyme involved in fruit-vegetable browning and melanin synthesis. In the present paper, L-3-phenyllactic acid, a natural bacteriostatic substance, was investigated as an inhibitor of polyphenol oxidase. The results were demonstrated that the residual enzyme activity of polyphenol oxidase decreased gradually with th
Food Sci. Technol. Publicado em: 2021-06
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2. Aspectos que Compõem o Perfil dos Profissionais Médicos da Estratégia Saúde da Família: o Caso de um Município Polo de Minas Gerais
RESUMO Estudo quali-quantitativo, de abordagem exploratória, que buscou identificar o perfil do médico da Estratégia Saúde da Família no município de Governador Valadares, bem como sua formação e características do seu trabalho. Foram realizadas entrevistas semiestruturadas com 36 médicos de equipes de Saúde da Família nesse município. Utilizou-
Rev. bras. educ. med.. Publicado em: 13/01/2020
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3. Adhesiveness of bulk-fill composite resin in permanent molars submitted to Streptococcus mutans biofilm
Abstract: The aim of the present study was to evaluate the microtensile bond strength and the microleakage of a bulk-fill composite resin compared with a conventional incremental composite resin, in permanent molars and under cariogenic challenge using a Streptococcus mutans model. Permanent human third molars (n = 60) with an occlusal cavity of 5×3×2 mm w
Braz. oral res.. Publicado em: 02/12/2019
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4. Comparative effects of final canal irrigation with chitosan and EDTA
Abstract Chitosan is a natural, biocompatible chelating substance with potential for dental use. This study compared the effects of final canal irrigation with chitosan and EDTA on dentin microhardness, sealer dentin tubules penetration capacity, and push-out strength. Methodology: Fifty canine roots were distributed according to the final irrigation protoc
J. Appl. Oral Sci.. Publicado em: 28/11/2019
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5. Evaluation of the effect of chlorhexidine and sodium hypochlorite in adhesive cementation of fiber posts - in vitro study
Resumo Introdução A fixação de pinos de fibra de vidro é realizada através de um processo adesivo. Falhas podem ocorrer na adesão devido à degradação hidrolítica dos adesivos, ou pela degradação das fibras colágenas da camada híbrida por enzimas intrínsecas. Objetivo Avaliar o efeito do tratamento com clorexidina e hipoclorito de sódio sob
Rev. odontol. UNESP. Publicado em: 07/11/2019
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6. Nano-structured Alumina-ZrO2 ceramic laminates
ABSTRACT In the last years many efforts have been expended to develop colloidal process that uses water instead of organic solvents in the tape casting process. In present work, alumina/zirconia laminated nanocomposites were fabricated by layer-by-layer method and using water-based tape casting process. Physical and mechanical properties as well as the fract
Matéria (Rio J.). Publicado em: 20/05/2019
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7. A Numerical Modelling of Mixed Mode Crack Initiation and Growth in Functionally Graded Materials
The main objective of this work is to present a numerical modeling of crack propagation path in isotropic functionally graded materials (FGMs) under mixed-mode loadings. The displacement extrapolation technique (DET) and the maximum circumferential stress (MCS) criterion are investigated in the context of crack growth in functionally graded beam subject to t
Mat. Res.. Publicado em: 04/04/2019
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8. Experimental and numerical investigation on the shock characteristics of U-notched ZL205A specimens under dynamic mixed-mode loading
Abstract Shock environment assessment and improvement during stage separation is an important issue of concern in aerospace engineering. This paper focuses on shock response caused by dynamic fracture of aluminum alloy separation plate, which usually undergoes mixed mode loading during separation. Based on Split Hopkinson Tensile Bar (SHTB) apparatus, five g
Lat. Am. j. solids struct.. Publicado em: 01/11/2018
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9. Long-term bonding efficacy of adhesives containing benzodioxioles as alternative co-initiators
Abstract This study evaluated the three-year lifespan of the bond to dentin of experimental self-etch adhesives containing benzodioxole derivatives – 1,3-benzodioxole (BDO) and piperonyl alcohol (PA) – as co-initiator alternative to amines. Adhesive resins were formulated using Bis-GMA, TEGDMA, HEMA, camphorquinone and different co-initiators: BDO, PA or
Braz. oral res.. Publicado em: 11/10/2018
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10. Study on the Mixed-Mode HPLC Separation of Shuang-Huang-Lian and Xue-Bi-Jing Injections Based on an Ionic Liquid Column
Both Shuang-Huang-Lian and Xue-Bi-Jing injections are clinically proven efficient and low cost medicines. However, the studies of their chromatographic separation are limited. In this study, a column based on ionic liquid stationary phase was applied for the first time for the analysis of these two injections. For Shuang-Huang-Lian injection, U-shaped plots
J. Braz. Chem. Soc.. Publicado em: 2018-07
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11. A New Approach for Investigation of Mode II Fracture Toughness in Orthotropic Materials
Abstract Estimation of mode II fracture toughness (KIIC) in composite materials is known as a troublous and crucial problem. Dissipated values of KIIC that are reported in different fracture mechanics references is the evidence of the mentioned claim. This problem can signify the necessity of modification on common test methods and fixtures. The present stu
Lat. Am. j. solids struct.. Publicado em: 14/05/2018
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12. Association between TNFα - 308 G/A polymorphism and oral lichen planus (OLP): a meta-analysis
Abstract Objectives To determine whether Tumor Necrosis Factor alpha (TNFα) –308 G/A polymorphism is associated with oral lichen planus (OLP). Material and Methods A systematic electronic search of the literature was conducted to identify all published studies on the association between TNFα –308 G/A polymorphism and OLP. All case-control studies eva
J. Appl. Oral Sci.. Publicado em: 05/04/2018