Search Results - "Carvalho, João Luiz Azevedo"

Classification of 1p/19q Status in Low-Grade Gliomas: Experiments with Radiomic Features and Ensemble-Based Machine Learning Methods by Medeiros, Tony Alexandre, Saraiva Junior, Raimundo Guimarães, Cassia, Guilherme de Souza e, Nascimento, Francisco Assis de Oliveira, Carvalho, João Luiz Azevedo de

“…Abstract Gliomas comprise the vast majority of all malignant brain tumors. Low-grade glioma patients with combined whole-arm losses of 1p and 19q chromosomes…”
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Computational Intelligence Conceptions to Automated Diagnosis: Feature Grouping for Performance Improvement by Nascimento, Francisco Assis de Oliveira, Saraiva Junior, Raimundo Guimarães, Faria, Edilaine Gonçalves Costa de, Silva, Tony Alexandre Medeiros da, Carvalho, João Luiz Azevedo de

“…Abstract The motivation of this work is to investigate two technological AI paths, evaluate the performance, and discuss the results. Using a covid-19 chest…”
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Motor unit action potential conduction velocity estimated from surface electromyographic signals using image processing techniques by Soares, Fabiano Araujo, Carvalho, João Luiz Azevedo, Miosso, Cristiano Jacques, de Andrade, Marcelino Monteiro, da Rocha, Adson Ferreira

“…In surface electromyography (surface EMG, or S-EMG), conduction velocity (CV) refers to the velocity at which the motor unit action potentials (MUAPs)…”
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Improved MRI Reconstruction Using a Singular Value Decomposition Approximation by Davi Marco Lyra-Leite, João Paulo Carvalho Lustosa da Costa, João Luiz Azevedo de Carvalho

“…The reconstruction of magnetic resonance imaging (MRI) data can be a computationally demanding task. Signal-to-noise ratio is also a concern, especially in…”
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Evaluation of a mobile electrode for electrical stimulation of the perineal muscle by da Silveira Bianchi Perez, Fabiana, Cruz, Cleyciany Barbosa, Soares, Fabiano Araujo, Carvalho, João Luiz Azevedo, da Rocha, Adson Ferreira

“…This work evaluates the effectiveness of a new type of electrode for functional electrical stimulation of the perineal muscle in women. The new electrode is…”
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On the behavior of surface electromyographic variables during the menstrual cycle by Soares, Fabiano Araujo, Salomoni, Sauro Emerick, Veneziano, Wilson Henrique, de Carvalho, Joao Luiz Azevedo, Nascimento, Francisco Assis de Oliveira, Pires, Kenia Fonseca, da Rocha, Adson Ferreira

“…The goal of this work is to study the behavior of electromyographic variables during the menstrual cycle. Ten female volunteers (24.0 ± 2.8 years of age)…”
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Electromyographic evaluation of muscle recovery after isometric fatigue by Peixoto, L R T, da Rocha, A F, de Carvalho, J L A, Gonçalves, C A

“…Despite growing interest in the behavior of electromyographic signals during muscle fatigue, few studies investigate fatigue recovery. In this work, we use…”
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Improved segmentation of echocardiographic images using fusion of images from different cardiac cycles by Amorim, J.C., do Carmo dos Reis, M., de Carvalho, J.L.A., da Rocha, A.F., Camapum, J.F.

“…In this work, an algorithm for the detection of the left ventricular border in two-dimensional long axis echocardiographic images is presented. In its…”
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Compression of electromyographic signals using image compression techniques by Costa, Marcus Vinicius Chaffim, de Azevedo Berger, Pedro, da Rocha, Adson Ferreira, de Carvalho, Joao Luiz Azevedo, de Oliveira Nascimento, Francisco Assis

“…Despite the growing interest in the transmission and storage of electromyographic signals for long periods of time, few studies have addressed the compression…”
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Sistema de apoio ao diagnóstico da Doença de Chagas baseado em escalogramas e redes neurais auto-organizáveis by Souza, João, Carvalho, João Luiz Azevedo de, Rocha, Adson Ferreira da, Junqueira, Luiz Fernando, Nascimento, Francisco Assis de Oliveira

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Extra\c{c}\~ao e Classifica\c{c}\~ao de Caracter\'isticas Radi\^omicas em Gliomas de Baixo Grau para An\'alise da Codele\c{c}\~ao 1p/19q by Silva, Tony Alexandre Medeiros, Cassia, Guilherme Sousa, Carvalho, João Luiz Azevedo

“…Radiomics is an emerging area, which presents a large set of computational methods and techniques to extract quantitative characteristics from magnetic…”
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Improved MRI reconstruction and denoising using SVD-based low-rank approximation by Lyra-Leite, D. M., da Costa, J. P. C. L., de Carvalho, J. L. A.

“…The reconstruction of multi-dimensional magnetic resonsance imaging (MRI) data can be a computationally demanding task. Signal-to-noise ratio is also a…”
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Fusion of electromyographic signals with proprioceptive sensor data in myoelectric pattern recognition for control of active transfemoral leg prostheses by Delis, A.L., de Carvalho, J.L.A., Borges, G.A., de Siqueira Rodrigues, S., dos Santos, I., da Rocha, A.F.

“…This paper presents a myoelectric knee joint angle estimation algorithm for control of active transfemoral prostheses, based on feature extraction and pattern…”
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Two-dimensional compression of surface electromyographic signals using column-correlation sorting and image encoders by Costa, M.V.C., Carvalho, J.L.A., Berger, P.A., Zaghetto, A., da Rocha, A.F., Nascimento, F.A.O.

“…We present a new preprocessing technique for two-dimensional compression of surface electromyographic (S-EMG) signals, based on correlation sorting. We show…”
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Velocity-encoded magnetic resonance imaging: Acquisition, reconstruction and applications by Carvalho, Joao Luiz Azevedo de

“…Cardiovascular disease is the leading cause of death and disability in the United States. An important component of the assessment of cardiovascular disease is…”
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Development of a Matlab software for analysis of heart rate variability by de Carvalho, J.L.A., da Rocha, A.F., de Oliveira Nascimento, F.A., Neto, J.S., Junqueira, L.F.

“…The analysis of heart rate variability (HRV) signals is an important tool for studying the autonomic nervous system, as it allows the evaluation of the balance…”
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