Zobrazeno 1 - 10
of 60
pro vyhledávání: '"José Wilson Vieira"'
Autor:
José Wilson Vieira, Viriato Leal Neto, Pedro Henrique Avelino de Andrade, Alex Cristóvão Holanda de Oliveira, Vanildo Júnior de Melo Lima, Isabelle Viviane Batista de Lacerda, Luís Rodrigo Dandrada, Arykerne Nascimento Casado da Silva, William de Souza Santos, Ivan Eufrázio de Santana, Whoody Alem Wanderley Araripe Farias, Larissa Cristina Silva dos Santos, Fernanda Gonçalves Oliveira, Fernando Roberto de Andrade Lima
Publikováno v:
Brazilian Journal of Radiation Sciences, Vol 11, Iss 1A (Suppl.) (2023)
In computational dosimetry of ionizing radiation, the energy deposited in radiosensitive organs and tissues is evaluated when an anthropomorphic simulator (phantom) is irradiated using Exposure Computational Models (ECMs). An ECM is a virtual scene w
Externí odkaz:
https://doaj.org/article/d605e2a5a39941c2933e1b6d96ffd8c6
Autor:
Larissa Cristina Silva dos Santos, José Wilson Vieira, Fernando Roberto de Andrade Lima, Alex Cristóvão Holanda de Oliveira
Publikováno v:
Brazilian Journal of Radiation Sciences, Vol 11, Iss 1A (Suppl.) (2023)
Due to its vast number of occurrences, cancer has caused an economic impact on the public and supplementary health care sectors. It is estimated that more than 50% of patients diagnosed with malignant neoplasms need radiotherapy at some stage of thei
Externí odkaz:
https://doaj.org/article/b9acc2299dcf4d8dbdbbd856c289d856
Autor:
José Wilson Vieira, Pedro Henrique Avelino Andrade, Alex Cristóvão Holanda Oliveira, Vanildo Júnior de Melo Lima, Isabelle Viviane Batista Lacerda, Arykerne Casado Silva, Ivan Eufrázio Santana, Whoody Alem Wanderley Farias, Larissa Cristina Silva Santos, Fernanda Gonçalves Oliveira, Fernando Roberto de Andrade Lima
Publikováno v:
Brazilian Journal of Radiation Sciences, Vol 11, Iss 01 (2023)
To evaluate the amount of energy deposited in radiosensitive organs and tissues of the human body, when an anthropomorphic phantom is irradiated, researchers in numerical dosimetry use the so-called exposure computational models (ECMs). One can imagi
Externí odkaz:
https://doaj.org/article/c93a0aa7e1d74405a0c061b3747fb7d6
Autor:
Filipe Lopes de Barros Correia, José Araújo dos Santos Júnior, José Wilson Vieira, Romilton dos Santos Amaral, Mariana Brayner Cavalcante Freire Bezerra, Zahily Herrero Fernández, Josineide Marques do Nascimento Santos, Yasmin Marques dos Santos, Keyth Roslyn Barbosa da Silva, Leandro Moreira da Silva
Publikováno v:
Food Additives & Contaminants: Part A. 40:404-414
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de2c37233311aa10d972981491e67153
https://doi.org/10.1080/19440049.2023.2169360
https://doi.org/10.1080/19440049.2023.2169360
Autor:
Ivan Eufrázio de Santana, José Wilson Vieira, Fernando Roberto de Andrade Lima, Whoody Alem Wanderley Araripe Farias
Publikováno v:
Brazilian Journal of Radiation Sciences, Vol 8, Iss 1B (2020)
Introdução : O câncer de próstata é tido como um problema de saúde pública. No Brasil, de acordo com o Instituto Nacional do Câncer, ele é o segundo mais frequente em homens [1]. Um dos tratamentos que pode ser utilizado para esse câncer é
Externí odkaz:
https://doaj.org/article/afffceaf5ea748b08c20528288603af1
Autor:
Whoody Alem Farias, José Wilson Vieira, Ivan Eufrázio de Santana, Victor Hugo da Silva, Jorge Gomes Lins, Pedro Avelino Andrade, Fernando Andrade Lima
Publikováno v:
Brazilian Journal of Radiation Sciences, Vol 8, Iss 1A (2020)
Modelos computacionais de exposição (MCEs) são usados em dosimetria numérica para estimar a dose absorvida (energia depositada/ massa) nos órgãos e tecidos radiossensíveis do corpo humano. Um MCE é composto, fundamentalmente, por um fantoma c
Externí odkaz:
https://doaj.org/article/6bc18addcc4c43629f11e65b724cde15
Autor:
Pedro Avelino Andrade, José Wilson Vieira, Victor Rogério Silva Oliveira, Rômulo José Bignetti Veloso, Fernando Andrade Lima
Publikováno v:
Brazilian Journal of Radiation Sciences, Vol 8, Iss 1A (2020)
Modelos Computacionais de Exposicão (MCEs) utilizam fantomas acoplados a codigos Monte Carlo (MC) e simuladores de fontes emissoras de eletrons, positrons e fotons para estimar a dose absorvida por órgãos radiossensveis de indivduos expostos as ra
Externí odkaz:
https://doaj.org/article/642ec169675b4962be7d2ad33f559fb0
Autor:
Isabelle Viviane Batista de Lacerda, José Wilson Vieira, Mércia Liane de Oliveira, Fernando Roberto de Andrade Lima
Publikováno v:
Brazilian Journal of Radiation Sciences, Vol 6, Iss 2A (2018)
Discrepancies between ICRP phantoms and real patients lead to disparities on patient-dose estimations. This paper aims to compare distribution of dose in organs of male/female individualized-phantoms and ICRP reference phantoms. The absorbed dose est
Externí odkaz:
https://doaj.org/article/bfc8286a0c9e4ce7a05353ad2dc299bf
Publikováno v:
Brazilian Journal of Radiation Sciences, Vol 6, Iss 2A (2018)
Modelos Computacionais de Exposição (MCEs) utilizam técnicas Monte Carlo (MC) para simular a interação da radiação com a matéria. Um MCE é constituído, basicamente por um fantoma (geometria a ser irradiada), algoritmos simuladores de fontes
Externí odkaz:
https://doaj.org/article/895680104de7431f9c2bf03e87397289
Autor:
Alex Cristóvão Holanda de Oliveira, José Wilson Vieira, Miriam Zarza Moreno, Fernando Roberto Andrade Lima
Publikováno v:
Brazilian Journal of Radiation Sciences, Vol 6, Iss 2 (2018)
Among the many algorithms developed for evaluation of dose distributions in radiotherapy, the Monte Carlo methods provide more realistic results. In intensity modulated radiation therapy, significant differences in dose distributions within the field
Externí odkaz:
https://doaj.org/article/3d878aee78574d45a18fca1063973dd4