Magnetic Fluid
Mostrando 1-12 de 139 artigos, teses e dissertações.
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1. Cine phase-contrast magnetic resonance imaging evaluation of cerebrospinal fluid flow dynamics in healthy pediatric subjects
Resumo Objetivo: Avaliar a dinâmica do fluxo do líquido cerebrospinal por cine-ressonância magnética com contraste de fase em crianças saudáveis, para determinar os valores normais de fluxo nesta população, bem como a diferença entre medições distintas de acordo com idade, sexo ou área da superfície corporal. Materiais e Métodos: Convocamos 3
Radiologia Brasileira. Publicado em: 2022
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2. Seminal citrate is superior to PSA for detecting clinically significant prostate cancer
ABSTRACT Purpose: To establish whether the citrate concentration in the seminal fluid ([CITRATE]) measured by means of high-resolution nuclear magnetic resonance spectroscopy (1HNMRS) is superior to the serum prostate-specific antigen (PSA) concentration in detecting of clinically significant prostate cancer (csPCa) in men with persistently elevated PSA. M
Int. braz j urol.. Publicado em: 20/12/2019
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3. Evaluation of polyelectrolyte and emulsion covalent crosslink of chitosan for producing mesalasine loaded submicron particles
This study evaluates various techniques for producing mesalamine (5ASA)-loaded particles employing chitosan as a biopolymer: (1) the polyelectrolyte complexation of chitosan with phthalate hypromelose (HP), (2) the chemical crosslinking of chitosan with genipin and (3) the water-in-oil emulsion method associated with chemical crosslinking with genipin. Syste
Braz. J. Pharm. Sci.. Publicado em: 20/12/2019
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4. Multiple sclerosis has a distinct lipid signature in plasma and cerebrospinal fluid
RESUMO Embora o diagnóstico da EM tenha se modificado na última década, ainda tem como requisito básico a demonstração da disseminação no tempo e no espaço, através do quadro clínico e do exame de ressonância magnética. A síntese intratecal de imunoglobulina pode ser um marcador inespecífico e não há biomarcadores plasmáticos que sejam úte
Arq. Neuro-Psiquiatr.. Publicado em: 24/10/2019
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5. IMAGE CORRELATION BETWEEN FACET EFFUSION AND LUMBAR INSTABILITY
RESUMO Objetivo Avaliar a incidência de líquido facetário na ressonância magnética (RNM) de coluna lombossacra e a relação com instabilidade segmentar radiográfica em pacientes submetidos à cirurgia da coluna vertebral. Métodos Coorte retrospectivo de pacientes submetidos à cirurgia da coluna lombossacra, em um período de três anos, através d
Coluna/Columna. Publicado em: 02/09/2019
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6. Quantitative evaluation of brain volume among elderly individuals in São Paulo, Brazil: a population-based study
Resumo Objetivo: Analisar, quantitativamente, o volume cerebral de idosos em uma amostra de base populacional em São Paulo. Materiais e Métodos: O estudo é uma avaliação radiológica e análise quantitativa baseada em voxel com alinhamento de superfície de 525 imagens de ressonância magnética de participantes de uma coorte de idosos (SABE - Saúd
Radiol Bras. Publicado em: 15/08/2019
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7. Multimodal quantitative magnetic resonance imaging analysis with individualized postprocessing in patients with drug-resistant focal epilepsy and conventional visual inspection negative for epileptogenic lesions
OBJECTIVES: Approximately one-third of candidates for epilepsy surgery have no visible abnormalities on conventional magnetic resonance imaging. This is extremely discouraging, as these patients have a less favorable prognosis. We aimed to evaluate the utility of quantitative magnetic resonance imaging in patients with drug-resistant neocortical focal epile
Clinics. Publicado em: 22/07/2019
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8. Design of Attitude Control Servomechanisms with Fluid Ring and CMG for Rigid Satellite
ABSTRACT: Satellites cover a wide range of space missions as remote sensing. Accomplishment of the mission depends on satellite's stability maintenance and direction. The main task of the attitude control system is to provide stability to the satellite against external disturbances. Such perturbations are caused due to aerodynamic drag, solar radiation and m
J. Aerosp. Technol. Manag.. Publicado em: 08/11/2018
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9. Enhanced settling of mature fine tailings (MFT) by paramagnetic nanofluids based on nanoiron
ABSTRACT The extraction of bitumen from sand by utilizing hot water processes results in the production of a slurry waste which is stored in so called “tailings ponds”. Within these ponds, while fast settling sand particles segregate from the slurry in relatively short time, the fines fraction accumulates in the center of the pond and then settles, becom
Matéria (Rio J.). Publicado em: 19/07/2018
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10. Malignant fibrous histiocytoma in a patient presenting with urinary system symptoms
Summary Malignant fibrous histiocytoma is a rare tumor. It is most commonly seen in individuals between the fifth and seventh decades of life, in extremities, and less frequently in the retroperitoneum. Although its etiology is not clearly known, radiotherapy, chemical agents, previous history of surgery, trauma and fracture, and Hodgkin lymphoma have been b
Rev. Assoc. Med. Bras.. Publicado em: 2017-11
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11. Metabolomics as a promising tool for early osteoarthritis diagnosis
Osteoarthritis (OA) is the main cause of disability worldwide, due to progressive articular cartilage loss and degeneration. According to recent research, OA is more than just a degenerative disease due to some metabolic components associated to its pathogenesis. However, no biomarker has been identified to detect this disease at early stages or to track its
Braz J Med Biol Res. Publicado em: 21/09/2017
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12. Entropy Generation Minimization Analysis of Active Magnetic Regenerators
Abstract A performance assessment of active magnetocaloric regenerators using entropy generation minimization is presented. The model consists of the Brinkman-Forchheimer equation to describe the fluid flow and coupled energy equations for the fluid and solid phases. Entropy generation contributions due to axial heat conduction, fluid friction and interstiti
An. Acad. Bras. Ciênc.. Publicado em: 2017-05