Tensor
Mostrando 1-12 de 387 artigos, teses e dissertações.
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1. Nicotine as a Catalyst for Chlorination Promoted by Hypochlorous Acid: Experimental and Theoretical Studies
There is robust evidence of the hypochlorous acid (HClO)-mediated damage in biomolecules, and nicotine boosts the chlorination potency of HClO. We present experimental and theoretical evidence of the mechanism by which nicotine catalyzes the chlorination of pyranine. The rate constants for chlorination of pyranine by HClO were measured in the presence (5.3 �
Journal of the Brazilian Chemical Society. Publicado em: 2023
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2. Magnetic resonance and dopamine transporter imaging for the diagnosis of Parkinson´s disease: a narrative review
RESUMO Antecedentes: O diagnóstico da doença de Parkinson (DP) pode ser desafiador, principalmente nas fases iniciais da doença, embora tenha critérios clínicos atualizados e validados. Os avanços recentes em neuroimagem na DP, além do seu papel já consolidado de excluir causas secundárias e outras causas neurodegenerativas de parkinsonismo, tem c
Arquivos de Neuro-Psiquiatria. Publicado em: 2022
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3. Longitudinal whole-brain analysis of multi-subject diffusion data in diffuse axonal injury
RESUMO Antecedentes: A lesão axonial difusa ocorre em traumas com alta energia de aceleração e desaceleração, determinando desorganização da microestrutura cerebral, levando a algum déficit. A escala de Glasgow Estendida (GOS-E) é indicada na avaliação clínica das vítimas de trauma cranioencefalico. Imagens por tensor de difusão (DTI) estudam
Arquivos de Neuro-Psiquiatria. Publicado em: 2022
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4. The Endoscopic Anatomy of the External Acoustic Meatus and of the Middle Ear in Dry Temporal Bones: A Study Conducted Using Digital and Mobile Device Technology
Abstract Introduction The endoscopic anatomy of the middle ear (ME) and of the external acoustic meatus (EAM) has been described in cadavers, in fresh temporal bones, or in vivo using conventional video recording, but not in dry bones or using an alternative inspection and recording technique. Objective To study the anatomy of the ME and of the EAM in dry
International Archives of Otorhinolaryngology. Publicado em: 2022
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5. Avaliação das mudanças estruturais no córtex orbitofrontal em relação ao uso excessivo de medicamentos em pacientes com migrânea: um estudo de imagem por tensor de difusão
RESUMO Introdução: A migrânea é uma doença neurológica prevalente que causa fortes dores de cabeça. Além disso, é a mais comum entre as cefaleias primárias que causam cefaleia por uso excessivo de medicamentos (CUEM). O córtex orbitofrontal (OF) é uma das estruturas mais associadas ao uso excessivo de medicamentos. Objetivo: Determinar alteraç
Arq. Neuro-Psiquiatr.. Publicado em: 2021-06
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6. Does Oral Submucous Fibrosis Affect the Hearing Ability of an Individual? A Cross-Sectional Study in North Indian Population
Abstract Objective: To evaluate the hearing efficiency of Oral Submucous Fibrosis (OSF) patients using Pure Tone Audiometry (PTA) and to correlate between the hearing efficiency and clinical stage of OSF. Material and Methods: Twenty-five patients clinically diagnosed as OSF were evaluated for hearing loss using ‘PTA’. Patients were grouped as mild cas
Pesqui. Bras. Odontopediatria Clín. Integr.. Publicado em: 13/01/2020
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7. Hidrodinâmica relativística: a representação de diversos fluidos em relatividade geral
Resumo O tensor de momento-energia é a entidade matemática que representa de forma unificada as fontes de momento e energia no formalismo covariante, tanto em espaços planos, como em espaços curvos. Em espaços curvos o tensor de momento-energia fica conectado a curvatura do espaço-tempo via equação de campo de Einstein. O tensor de momento-energia ca
Rev. Bras. Ensino Fís.. Publicado em: 04/11/2019
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8. Gluteus Medius and Tensor Fascia Latae muscle activation levels during multi-joint strengthening exercises
Abstract Aim: To compare the activation of GMed and TFL in four multi-joint exercises in strength training protocols and to verify if the level of muscle activation is indicated for strength gains in resistance training protocols. Methods: Eleven recreational lifters had normalized muscle activation of GMed and TFL assessed during ten maximal repetitions o
Motriz: rev. educ. fis.. Publicado em: 24/10/2019
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9. Evolutionary aspects on the origin, distribution and ramifications of the ischiadicus nerve in the giant anteater (Myrmecophaga tridactyla)
RESUMO Objetivou-se descrever as origens, distribuições e ramificações dos nervos isquiáticos no tamanduá-bandeira, disponibilizando, assim, dados anatômicos que possam não só elucidar os aspectos evolutivos como também fornecer informações importantes para áreas afins. Foram utilizados quatro espécimes preparados por meio da perfusão de forma
Arq. Bras. Med. Vet. Zootec.. Publicado em: 10/10/2019
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10. On-load Back-EMF Optimization Based on the Back-EMF MST Method and Parametric Optimization
Abstract This paper proposes an optimal design for a surface mounted permanent magnet synchronous machine (SM-PMSM) based on parametric optimization process to reduce the on-load Back-EMF distortions caused by an increase in the electromagnetic load and in the saturation. Unlike conventional methods described in the literature, the optimization approach prop
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 12/09/2019
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11. An efficient general curvilinear coordinates finite element method for the linear dynamic study of thickness-independent shells
Abstract yyTo date, a large number of finite element methods have been developed to study the dynamics of shell structures. Most of them are generally based on the degenerated solid approach and other less in shell theories, but introducing, in this last case, some assumptions to analyze this problem: some of them refer to shallow shells (slightly curved she
Lat. Am. j. solids struct.. Publicado em: 27/06/2019
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12. Structural and functional neuroimaging studies in generalized anxiety disorder: a systematic review
Objectives: Brain imaging studies carried out in patients suffering from generalized anxiety disorder (GAD) have contributed to better characterize the pathophysiological mechanisms underlying this disorder. The present study reviews the available functional and structural brain imaging evidence on GAD, and suggests further strategies for investigations in
Braz. J. Psychiatry. Publicado em: 16/05/2019