Optical Control
Mostrando 1-12 de 458 artigos, teses e dissertações.
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1. Impressions of the chronic 900-MHz electromagnetic field in the prenatal period on Purkinje cells in male rat pup cerebella: is it worth mentioning?
SUMMARY OBJECTIVE: The aim of this study was to examine the changes on the Purkinje cells in the cerebella of male rat pups born to pregnant dams that were exposed to an electromagnetic field in the prenatal period. METHODS: The first stage of the study involved 12 Sprague-Dawley rats, 6 male and 6 female, weighing between 180 and 250 g. The female rats in
Revista da Associação Médica Brasileira. Publicado em: 2022
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2. Oncologic Panendoscopy: Description of an Optimized Procedure Based on Our Experience
Abstract Introduction All patients with a new head and neck squamous cell carcinoma (HNSCC) undergo diagnostic panendoscopy as part of the screening for synchronous second primary tumors. It includes a pharyngolaryngoscopy (PLS), a tracheobronchoscopy and esophagoscopy, and a stomatoscopy. Rigid techniques are risky, with long learning curves. Objective We
International Archives of Otorhinolaryngology. Publicado em: 2022
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3. Oral Use of Phenytoin to Reduce Calcification in Bovine Pericardium and Porcine Aortic Leaflets Implants in Rats
Abstract Introduction: This study aims to test the effect of phenytoin as an inhibitor of the process of dystrophic calcification in bovine pericardium and porcine leaflets implanted in the subcutaneous tissue of rats. Methods: Isolated segments of biomaterials were implanted subcutaneously in young rats. The study groups received 500 mg phenytoin per kilo
Braz. J. Cardiovasc. Surg.. Publicado em: 2021-06
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4. Characterization of Otto Chips by Particle Swarm Optimization
Abstract Recently a surface plasmon resonance (SPR) optical sensor, based on the Otto configuration — the Otto chip — has been developed. One essential step in the quality control of the fabrication process is characterization of the active region of several devices in a batch. Characterization is done by measuring the angular spectrum of the optical re
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2021-03
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5. Biomechanical and biochemical investigation of erythrocytes in late stage human leptospirosis
Leptospirosis is a zoonotic disease caused by bacteria of the genus Leptospira, which can cause lipid changes in the erythrocyte membrane. Optical tweezers were used to characterize rheological changes in erythrocytes from patients with leptospirosis in the late stage. Biochemical methods were also used for quantification of plasma lipid, erythrocyte membran
Braz J Med Biol Res. Publicado em: 2020-08
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6. 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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7. ONE-POT DIASTEREOSELECTIVE SYNTHESIS OF CHIRAL TRICYCLIC L-CYSTEINE AND D-PENICILLAMINE DERIVATIVES: A LABORATORY EXPERIMENT
A one-pot diastereoselective synthesis of thiazolidine-ring fused systems derived from enantiomerically pure amino acids, L-cysteine or D-penicillamine, and achiral succindialdehyde is described as an experiment to be carried out by upper-division undergraduate students in a laboratory classroom. Reactions were performed under mild conditions, the products w
Quím. Nova. Publicado em: 2020-01
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8. Size and shape-controlled nanomaterials based on modified polyol and thermal decomposition approaches. A brief review.
Abstract: Since its inception in 2007, the Colloidal Materials Group, one of the research groups in nanotechnology of the Institute of Chemistry of São Carlos (IQSC) at University of São Paulo (USP) carries out studies related to the development of syntheses methods of nanoparticles and multifunctional nanostructured systems. Our works search new synthesis
An. Acad. Bras. Ciênc.. Publicado em: 28/11/2019
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9. Monochromatic double coloring effect on V2O5 thin films deposited by electron beam
ABSTRACT Electrochromic material is a thin film technology that has a close relationship with environmental sustainability since they can control the light and heat that enter and leave a building. Vanadium oxide films are electrochemically active for lithium and electron co-intercalation, presenting low optical variation in the low energy visible light, whi
Matéria (Rio J.). Publicado em: 25/11/2019
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10. Optical coherence tomography angiography findings in patients with branch retinal vein occlusion treated with Anti-VEGF
RESUMO Objetivo: Investigar as alterações na microvascu latura da retina em pacientes tratados com anti-VEGF para ede ma macular secundário à oclusão de ramo da veia retiniana. Métodos: Foram examinados 38 olhos de 19 pacientes para o estudo. Medimos as densidades dos vasos do plexo capilar superficial e profunda (%), áreas da zona avascular foveal
Arq. Bras. Oftalmol.. Publicado em: 25/11/2019
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11. Glaucoma de ângulo fechado devido a síndrome de íris em platô
Resumo Objetivo: Descrever um caso de glaucoma de ângulo fechado devido a síndrome de íris em platô. Descrição do caso: Paciente do sexo feminino, de 50 anos de idade, que há 13 meses foi tratada de fechamento angular primário a esquerda com sucesso com iridotomia periféria com Nd:YAG laser, compareceu ao serviço com queixa de embaçamento visual
Rev. bras.oftalmol.. Publicado em: 04/11/2019
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12. Remineralizing Potential of Nano-Silver-Fluoride for Tooth Enamel: An Optical Coherence Tomography Analysis
Abstract Objective: To evaluate the use of nanosilver fluoride in the enamel remineralization process through optical coherence tomography. Material and Methods: All samples were submitted to demineralization process by pH cycling during 14 days and randomly distributed into three groups (n = 11): Nanosilver Fluoride (NSF), Sodium fluoride (NaF), and negat
Pesqui. Bras. Odontopediatria Clín. Integr.. Publicado em: 10/10/2019