João Valente

Dr. João Valente


Research Focus & Metrics

Academic Career Length

23Years (2004-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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13 May 2021 in Sensors
Verified
Journal Article
Open access
PDF file
Afonso RaposoAfonso Raposo
Afonso Raposo
LMLuis Marques
Luis Marques
RCRafael Correia
Rafael Correia
FMFrancisco de Melo
Francisco de Melo
JVJoão Valente
João Valente
Hugo Plácido da SilvaHugo Plácido da Silva
Hugo Plácido da Silva
In 2019, a new virus, SARS-CoV-2, responsible for the COVID-19 disease, was discovered. Asymptomatic and mildly symptomatic patients were forced to quarantine and closely monitor their symptoms and vital signs, most of the time at home. This paper describes e-CoVig, a novel mHealth application, developed as an alternative to the current monitoring paradigm, where the patients are followed up by direct phone contact. The e-CoVig provides a set of functionalities for remote reporting of symptoms, vital signs, and other clinical information to the health services taking care of these patients. The application is designed to register and transmit the heart rate, blood oxygen saturation (SpO2), body temperature, respiration, and cough. The system features a mobile application, a web/cloud platform, and a low-cost specific device to acquire the temperature and SpO2. The architecture of the system is flexible and can be configured for different operation conditions. Current commercial devices, such as oximeters and thermometers, can also be used and read using the optical character recognition (OCR) functionality of the system. The data acquired at the mobile application are sent automatically to the web/cloud application and made available in real-time to the medical staff, enabling the follow-up of several users simultaneously without the need for time consuming phone call interactions. The system was already tested for its feasibility and a preliminary deployment was performed on a nursing home showing promising results.

12 July 2019 in Medical Physics
Verified
Journal Article
Closed access
PDF file
PVPedro M Vieira
Pedro M Vieira
NFNuno R Freitas
Nuno R Freitas
JVJoão Valente
João Valente
AVA. Ismael F. Vaz
A. Ismael F. Vaz
CRCarla Rolanda
Carla Rolanda
CLCarlos Santos Lima
Carlos Santos Lima

24 August 2021 in Foods
Verified
Journal Article
Open access
PDF file
JVJoão Valente
João Valente
LGLeonor Godinho
Leonor Godinho
CPCristina Pintado
Cristina Pintado
CBCátia Baptista
Cátia Baptista
VKVeronika Kozlova
Veronika Kozlova
Hugo Plácido da SilvaHugo Plácido da Silva
Hugo Plácido da Silva
There is an increasing interest, in consumer behaviour research related to food and beverage, in taking a step further from the traditional self-report questionnaires and organoleptic properties assessment. With the growing availability of psychophysiological data acquisition devices, and advancements in the study of the underlying signal sources seeking affective state assessment, the use of psychophysiological data analysis is a natural evolution in organoleptic testing. In this paper we propose a protocol for what can be defined as neuroorganoleptic analysis, a method that combines traditional approaches with psychophysiological data acquired during sensory testing. Our protocol was applied to a case study project named MobFood, where four samples of food were tested by a total of 83 participants, using preference and acceptance tasks, across three different sessions. Best practices and lessons learned regarding the laboratory setting and the acquisition of psychophysiological data were derived from this case study, which are herein described. Preliminary results show that certain Heart Rate Variability (HRV) features have a strong correlation with the preferences self-reported by the participants.

1 February 2018 in Journal of Neuroscience Methods
Verified
Journal Article
Closed access
JVJoão Valente
João Valente
PVPedro M Vieira
Pedro M Vieira
CCCarlos Couto
Carlos Couto
CLCarlos Santos Lima
Carlos Santos Lima

3 July 2021
Verified
Book Chapter
Closed access
PDF file
EREulerson Pedro Ferreira Rodrigues
Eulerson Pedro Ferreira Rodrigues
EFErnesto Filgueiras
Ernesto Filgueiras
JVJoão Valente
João Valente

1 October 2020 in Computer Methods and Programs in Biomedicine
Verified
Journal Article
Closed access
MAMariana Abreu
Mariana Abreu
AFAna L. N. Fred
Ana L. N. Fred
JVJoão Valente
João Valente
CWChen Wang
Chen Wang
Hugo Plácido da SilvaHugo Plácido da Silva
Hugo Plácido da Silva