Un capítulo en la historia de la histología, Bichat (una luz en la oscuridad)
Cuad. Hosp. Clín; 65 (1), 2024
Results: 92
Morphophysiological changes of Acca sellowiana (Myrtaceae: Myrtoideae) saplings under shade gradient
Braz. j. biol; 84 (), 2024
Abstract Understanding morphological and physiological changes under different light conditions in native fruit species in juveniles' stage is important, as it indicate the appropriate environment to achieve vigorous saplings. We aimed to verify growth and morphophysiological changes under shade gradient...
Ação da luz visível na oxidação da melanina e no descolorimento do cabelo
O dano capilar causado pelo descolorimento oxidativo é muito intenso, sendo que dois fatores são responsáveis por essa ação: primeiro, a ação direta e danosa do oxidante em diversas estruturas capilares e segundo, o dano oxidativo primário facilita o dano causado por outros agentes físicos (luz,...
The influence of whole-body vibration, media, and artificial lighting on eye-movement during reading
Rev. bras. oftalmol; 82 (), 2023
ABSTRACT Objective: To evaluate if participants, subjected to whole-body vibration, two different types of media (paper versus tablet) and two lighting environments (fluorescent versus LED), present a difference in eye-movement parameters during reading tasks. Methods: Fourteen adults silently read two...
Influence of number and position of porcelain specimens in the furnace on flexural strength and translucency
Braz. j. oral sci; 22 (), 2023
The aim of this study was to investigate the influence of the quantity and positioning of feldspathic ceramic specimens inside the furnace on their flexural strength and translucency. The tested hypotheses were that the arrangement of specimens in the furnance would not influence 1) the translucency or 2...
Change in leaf anatomy, physiology, and essential oil of Varronia curassavicaJacq. accessions under two light conditions
Bol. latinoam. Caribe plantas med. aromát; 21 (6), 2022
The aim of this study was to evaluate the effect of light on anatomy, physiology and essential oil content and composition of Varronia curassavica. They were analysed two light conditions (full sunlight and protected environment with 50% shade screen) and five accessions (VCUR-101, VCUR-102, ...
Intensidad lumínica de las lámparas de fotocurado LED en los consultorios odontológicos de Piura, Perú
Output intensity of LED light curing units in dental offices of Piura, Peru
Rev. cuba. estomatol; 59 (2), 2022
Introducción: La lámpara de fotocurado, que utiliza diodos emisores de luz (LED), se emplea en odontología para la conversión polimérica de los materiales de restauración dental. Se ha comunicado que una intensidad lumínica inadecuada de la lámpara no aseguraría la correcta polimerización del ...
Violet LED-Based Tooth Whitening and Resin Composite Restorations to Reestablish Smile Aesthetics Case Report
Int. j. odontostomatol. (Print); 16 (1), 2022
ABSTRACT: This clinical case described the aesthetic treatment of a patient complaining about the aspect of their upper teeth. After anamnesis and clinical examination, the association of tooth whitening photoactivated by violet LED and resin composite restorations was indicated. Prior to restorative tre...
Blue and red light photoemitters as approach to inhibit Staphylococcus aureus and Pseudomonas aeruginosa growth
Braz. j. biol; 82 (), 2022
The ability of pathogenic bacteria acquire resistance to the existing antibiotics has long been considered a dangerous health risk threat. Currently, the use of visible light has been considered a new approach to treat bacterial infections as an alternative to antibiotics. Herein, we investigated the ant...
Do automotive window films affect drivers' safety by decreasing vision sensitivity? A Cross-sectional study
Rev. bras. oftalmol; 81 (), 2022
ABSTRACT Objective: To measure visual acuity in high contrast and low contrast sensitivities in different grades of visible light transmission films in three different positions (front, lateral and rear windows). Methods: Forty-four healthy volunteers between 30-75 y-o, with BCVA better than 0,5, were ...