Artificial Light
Mostrando 13-24 de 233 artigos, teses e dissertações.
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13. Effect of different artificial aging protocolson fluorescence of resin composites
ABSTRACT This study evaluated the effect of different artificial aging on fluorescence of resin composites. Forty-five cylindrical specimens (6mm in diameter and 1mm thick) were made of each resin composite: IPS Empress Direct, Filtek™ Z350 XT, and Durafill. A baseline measurement of fluorescence by the direct method using the fluorescence spectrophotomete
Matéria (Rio J.). Publicado em: 06/12/2018
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14. LED TUBS ARTIFICIAL LIGHTING SYSTEM IN BROILER PRODUCTION
ABSTRACT Light is important for the physiology and zootechnical development of broilers and is characterized by the type of source defined by the spectral emission and geometry of the lamp, as well as the intensity and spatial distribution of the illuminance. The aim of this study was to verify the influence of an artificial lighting system based on tubular
Eng. Agríc.. Publicado em: 2018-06
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15. Immediate effects of temporary bite-raising with light-cured orthodontic band cement on the electromyographic response of masticatory muscles
Abstract Objective: To assess the immediate effects of temporary bite-raising using light-cured orthodontic band cement on the superficial masseter and anterior temporalis electromyography (EMG) activity in healthy adults. Materials and Methods: Surface EMG signals were recorded bilaterally from the superficial masseter and anterior temporalis muscles of 3
J. Appl. Oral Sci.. Publicado em: 14/05/2018
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16. TiF4 varnish protects the retention of brackets to enamel after in vitro mild erosive challenge
Abstract The effect of fluoride agents on the retention of orthodontic brackets to enamel under erosive challenge is little investigated. Objective: The aim of this study was to evaluate the effect of titanium tetrafluoride (TiF4) and sodium fluoride (NaF) agents on the shear bond strength of brackets to enamel and on the enamel microhardness around bracket
J. Appl. Oral Sci.. Publicado em: 14/05/2018
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17. Effect of Led Lighting Colors for Laying Japanese Quails
ABSTRACT Time of exposure and light intensity rearing house may affect the performance and egg quality of laying quails. This research aimed at evaluating the live performance, egg quality, biometry of the reproductive system, and the gastrointestinal tract of Japanese quails (Coturnix coturnix japonica) exposed to artificial light-emitting diodes (LED) of d
Rev. Bras. Cienc. Avic.. Publicado em: 2016-09
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18. MECHANISTIC ASPECTS OF PHOTOCATALYTIC ACTIVITY OF METALLOPORPHYRIN-TITANIUM MIXTURES IN MICROEMULSIONS
Photocatalytic activity of titanium citrate and its water-in-oil microemulsions mix with zinc (II) tetraphenylporphyrin have been studied by means of adding 4-chlorophenol and following its degradation using artificial ultraviolet and visible light. 4-Chlorophenol is degraded in 71 and 86%, respectively, in 30 min with the generation of various intermediarie
Quím. Nova. Publicado em: 2016-09
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19. Reticular pattern detection in dermoscopy: an approach using Curvelet Transform
Abstract Introduction Dermoscopy is a non-invasive in vivo imaging technique, used in dermatology in feature identification, among pigmented melanocytic neoplasms, from suspicious skin lesions. Often, in the skin exam is possible to ascertain markers, whose identification and proper characterization is difficult, even when it is used a magnifying lens and a
Res. Biomed. Eng.. Publicado em: 07/07/2016
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20. Evaluation of the remineralization capacity of CPP-ACP containing fluoride varnish by different quantitative methods
ABSTRACT Objective The aim of this study was to evaluate the efficacy of CPP-ACP containing fluoride varnish for remineralizing white spot lesions (WSLs) with four different quantitative methods. Material and Methods Four windows (3x3 mm) were created on the enamel surfaces of bovine incisor teeth. A control window was covered with nail varnish, and WSLs
J. Appl. Oral Sci.. Publicado em: 2016-06
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21. Desempenho de métodos baseados em indução de fluorescência na avaliação da remoção de dentina cariada
Resumo Introdução Critérios clínicos vêm sendo utilizados para determinação da presença de tecido cariado remanescente, mas geram dúvidas, tornando-se relevante a utilização de métodos que auxiliem na determinação da presença de cárie dentária remanescente. Objetivo Avaliar in vitro a eficácia de métodos de indução de fluorescência no
Rev. odontol. UNESP. Publicado em: 12/02/2016
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22. Color stability and surface roughness of artificial teeth brushed with an experimental Ricinus communis toothpaste
Abstract Aim: To evaluate, in vitro, the effect of brushing with a Ricinus communis-based experimental toothpaste on color stability and surface roughness of artificial teeth. Methods: Ninety artificial teeth (maxillary central incisors) in different shades, light and dark (NatusDent Triple Pressing, Dentbras) were used. Initial color (Spectrophotometer
Braz. J. Oral Sci.. Publicado em: 2015-12
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23. Nitrogen dopedTiO2photoactive in visible light
abstractIn this research TiO2 modified with nitrogen has been prepared. The synthesis method used was sol gel from the hydrolysis of titanium tetrabutoxide with urea solution, combined with a low temperature treatment at atmospheric pressure. The theoretical mole ratio N/Ti was equal to 0.5 and the theoretical mole ratio HNO3/TiO2 was equal to 0.5. The solid
Matéria (Rio J.). Publicado em: 2015-09
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24. One-year clinical evaluation of the retention of resin and glass ionomer sealants on permanent first molars in children
Abstract Aim : To compare the retention of glass ionomer cement (GIC) used as fissure sealant with a resinbased sealant. Methods: Six- to nine-year-old children (n=96) with all permanent first molars in occlusion were examined and assigned to two groups: GIC sealant or resin-based sealant. The sealants were applied according to the manufacturers' recommend
Braz. J. Oral Sci.. Publicado em: 2015-09