Cross Spectral Analysis
Mostrando 1-12 de 35 artigos, teses e dissertações.
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1. The effects of cataract surgery on autonomic heart rate control: a prospective cross-sectional and analytical study
OBJECTIVES: We aimed to evaluate the effects of cataract surgery on cardiac autonomic modulation. METHODS: A cross-sectional and analytical study was conducted at the Hospital Maria Braido in the city of São Caetano do Sul, São Paulo, between 2015 and 2016. We investigated 19 patients of both sexes who were all over 50 years old; all patients had a diagn
Clinics. Publicado em: 09/09/2019
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2. Manual and semi-automatic quantification of in vivo ¹H-MRS data for the classification of human primary brain tumors
In vivo proton magnetic resonance spectroscopy (¹H-MRS) is a technique capable of assessing biochemical content and pathways in normal and pathological tissue. In the brain, ¹H-MRS complements the information given by magnetic resonance images. The main goal of the present study was to assess the accuracy of ¹H-MRS for the classification of brain tumors i
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-04
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3. Efeito fotoiniciador sobre propriedades físicas, mecânicas e térmicas de compósitos experimentais fotoativados por luz de lâmpada halógena e LEDs / Effect of the photo-initiator on physical, mechanics and thermal properties of experimental composites photo-activated for halogen lamp and LEDs
The aim of this study was to analyze the spectrum of different lightcuring units (LCUs) and photo-initiators and yours influence in the physical and thermal properties and bond strength (BS) of experimental resin composites with different photo-initiators. A blend with BisGMA, UDMA, BisEMA, TEGDMA and 65 wt% of silanated filler particles was prepared with CQ
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/08/2010
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4. Comparative analysis of circular and triangular gold nanodisks for field enhancement applications
In this paper, we present a quantitative comparison of circular and triangular gold nanodisks with the same length and thickness. The method of moments is used to solve numerically the scattering problem. With this model, we investigate the spatial near field distribution, spectral response, far field diagrams, and bandwidth wavelength of these particles. Ou
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2010-12
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5. AnÃlise Espectral do Biospeckle Laser AtravÃs do Momento de InÃrcia, Entropia e Cross-Spectrum / Biospeckle laser spectral analysis under Inertia Moment, Entropy and Cross-Spectrum methods.
O speckle dinÃmico pode ser utilizado como uma ferramenta de anÃlise da atividade, biolÃgica ou nÃo, de materiais iluminados com luz laser. O Spatial Temporal Speckle (STS) registra dados temporais dos padrÃes de speckle dinÃmico e à usado como entrada para vÃrias tÃcnicas que buscam retirar informaÃÃes da atividade que està sendo alvo de estudo.
Publicado em: 2008
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6. Does acute hyperglycemia alter rat aortic depressor nerve function?
Because it is not known where in the reflex arch, i.e., afference, central nervous system or efferences, hyperglycemia affects baroreflex function, the present study examined the effect of short-term (30 min) hyperglycemia on aortic depressor nerve function measured by a mean arterial pressure vs aortic depressor nerve activity curve, fitted by sigmoidal reg
Brazilian Journal of Medical and Biological Research. Publicado em: 2007-11
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7. Structural, morphological and functional analysis of superficial digital flexor chicken tendons / Analise estrutural, morfologica e funcional do tendão flexor digital superficial de frangos
The structure-function relationship has been shown in several works regarding collagenous tissues, such as tendon. It is known that different loads can alter composition, molecular organization and morphological characteristics. Tendons present viscoelastic behavior and this characteristic is studied by biomechanical analyses and is directly related to tissu
Publicado em: 2007
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8. Relação sol-terra estudada através de anéis de crescimento de coníferas do holoceno recente e do triássico / Sun-earth relationship studied by tree growth rings in conifers from holocene and triassic
The study of the Sun and of its energy flux variations is recent and fully experimental. For this reason , if is very important develop studies in order to understand the past and predict the future using natural records at the Earth surface to monitor solar variations and their effects on climate. The studies about the Sun s variations and Sun-Earth-Climate
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/08/2006
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9. Desenvolvimento de um sistema de imageamento usando a tomografia por coerÃncia Ãptica no domÃnio temporal e de Fourier
In this dissertation, we describe the basic theory and details of the implementation of three experimental optical coherence tomography systems, two in the time domain and one in the spectral (Fourier) domain. Optical coherence tomography (OCT) is a non invasive optical imaging method, capable of producing cross-sectional images of materials and biological t
Publicado em: 2006
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10. Sun-earth relationship studied by tree growth rings in conifers from holocene and triassic / Relação sol-terra estudada através de anéis de crescimento de coníferas do holoceno recente e do triássico
The study of the Sun and of its energy flux variations is recent and fully experimental. For this reason , if is very important develop studies in order to understand the past and predict the future using natural records at the Earth surface to monitor solar variations and their effects on climate. The studies about the Sun s variations and Sun-Earth-Climate
Publicado em: 2006
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11. Estudos das características fotofísicas da porfirina mesotetrasulfonatofenil (TPPS4): efeitos da protonação e interação com micelas de CTAB / Study of photophysical characteristics of meso-tetrakis sulphonatophenyl porphyrin (TPPS4): effects of protonation and interaction with CTAB micelles.
In this work, we study photophysical characteristics of meso-tetrakis sulphonatophenyl porphyrin (TPPS4) in protonated and nonprotonated states. We obtained the whole set of photophysical parameters of TPPS4 excited states in homogeneous aqueous solution and in the presence of micelles from cationic detergent cetyltrimethylammonium bromide (CTAB). The parame
Publicado em: 2006
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12. "Investigações sobre o controle neuromotor do músculo reto do abdome" / INVESTIGATIONS ABOUT THE NEUROMOTOR CONTROL OF THE RECTUS ABDOMINIS MUSCLE
The rectus abdominis is an important muscle of the abdominal wall; it is responsible for the stabilization and function of the spine, as to athletic activity as daily activity. However, we do not have enough knowledge about the neuromotor control of this structure in voluntary activities, like abdominal exercises and how different tasks alter the segmental a
Publicado em: 2005