User profiles for João Valença

João VB Valença

Universidade Federal de Ciências da Saúde de Porto Alegre
Verified email at ufcspa.edu.br
Cited by 84

Programa de saúde na escola eo alinhamento de ações na prevenção do coronavírus

…, TA Escobar, JAP Valença… - Research, Society and …, 2021 - rsdjournal.org
The Health and Prevention in Schools Program was designed and implemented by the Ministry
and aims to guarantee the approach to specific health topics. Currently, in addition to the …

Optically stimulated luminescence of the [20% Li2CO3+ x% K2CO3+(80-x)% B2O3] glass system

JVB Valença, ACA Silva, NO Dantas, LVE Caldas… - Journal of …, 2018 - Elsevier
This study analyzed the optically simulated luminescence (OSL) of borate glasses
containing lithium carbonate and potassium carbonate. Borate glasses present desirable …

Study on the composition of mineral scales in oil wells

KA Kodel, PF Andrade, JVB Valença… - Journal of Petroleum …, 2012 - Elsevier
The formation of mineral scales is one of the most common problems in oil wells around the
world and despite great technological developments by engineers, this problem remains …

Dosimetric evaluation in brachytherapy and teletherapy for prostate cancer using Monte Carlo simulation and anatomically realistic virtual anthropomorphic phantom

…, CJ Santos, LP Neves, W Belinato, JVB Valença… - Radiation Physics and …, 2023 - Elsevier
The benefits that radiotherapy provides to the patient are unquestionable. However, there is
growing concern about the increased risk of radiation-induced secondary cancer and the …

Processos e percepções de cura a partir do levantamento da produção acadêmica brasileira sobre religião e saúde

J Valença, AB Fonseca - Mediações-Revista de Ciências Sociais, 2006 - ojs.uel.br
O mapeamento e a análise do campo de estudos que contempla os temas religião e saúde
podem contribuir para as discussões relacionadas às práticas e ações em saúde. Foram …

[HTML][HTML] The importance of sleep fragmentation on the hemodynamic dipping in obstructive sleep apnea patients

…, D Grencho, C Reis, F Matos, J Valenca… - Frontiers in …, 2020 - frontiersin.org
Introduction Obstructive sleep apnea (OSA) has been associated with non-dipping blood
pressure (BP). The precise mechanism is still under investigation, but repetitive oxygen …

Production and characterization of H3BO3–Li2CO3–K2CO3–MgO glass for dosimetry

A Marini, JVB Valença, RAP Oliveira, SO Souza… - Radiation physics and …, 2015 - Elsevier
Borate glasses are suitable for thermoluminescent dosimetry. In particular, borate glasses
doped with different elements show good characteristics in terms of linearity, sensitivity and …

Síndroma de apneia do sono–ventilação com pressão positiva

J Valença - Revista Portuguesa de Pneumologia, 2002 - Elsevier
O tratamento da Síndroma de Apneia Obstrutiva do Sono (SAOS) com ventilação com
pressão positiva é uma terapêutica altamente gratificante na grande maioria dos casos. A …

Influence of shallow traps on the kinetics of Optically Stimulated Luminescence of the Li and Ce ions co-doped MgB4O7 compound

…, JLO Santos, V Coelho, AO de Souza, JVB Valença… - Optical Materials, 2024 - Elsevier
The presence of point defects associated with shallow traps has been identified as a limiting
factor in the design of materials with desirable characteristics for applications such as …

Mobile shielding evaluation on the fetal dose during a breast radiotherapy using Monte Carlo simulation

L Catusso, WS Santos, RMV da Silva, JVB Valença - Physica Medica, 2021 - Elsevier
Purpose Evaluation of the out-of-field dose is an important aspect in radiotherapy. Due to
the fetus radiosensitivity, this evaluation becomes even more conclusive when the patient is …