47 documents found, page 1 of 5
Assessing sleep quality of professional drivers: an analysis based on self-perc...
Lopes, T.; Faria, Brigida Monica; Oliveira, Alexandra; Pimenta, Rui; Reis, L. P.Portugal has been ranked as the fourth European country with the highest incidence of falling asleep while driving. The quality of sleep comprises both quantitative aspects, such as sleep duration and sleep latency, and qualitative aspects, such as mood and health status. Neglecting the quality and quantity of sleep can result in fatigue, affecting multiple aspects of safe driving, such as attentiveness to the ...
Using machine learning to predict wine quality and prices: a demonstrative case...
Moreira, Diogo Oliveira; Reis, L. P.; Cortez, PauloThe wine industry is currently experiencing a worldwide growing interest, playing a substantial role in the economy of numerous countries. In this paper, we address the prediction of both wine quality and price, which is a valuable tool for several wine stakeholders, including producers, sellers and consumers. In particular, we explore a large worldwide tabular database that was retrieved from the Vivino platfo...
Biometrics and quality of life of lymphoma patients: A longitudinal mixed‐model...
Oliveira, Alexandra; Silva, Eliana; Aguiar, Joyce Cristina Santos; Faria, Mónica Brígida; Reis, L. P.; Cardoso, Henrique; Gonçalves, JoaquimKnowledge Engineering has become essential in the fields of Medical and Health Care with emphasis for helping citizens to improve their health and quality of life. This includes individual methods and techniques in health‐related knowledge acquisition and representation and their application in the construction of intelligent systems capable of using the acquired information to improve the patients' health and/...
Assist-as-needed impedance control strategy for a wearable ankle robotic orthosis
Lopes, Joao; Pinheiro, Cristiana; Figueiredo, Joana; Reis, L. P.; Santos, CristinaThe use of robots in rehabilitation attempts an effective, compliant, and time-efficient gait recovery while adapting the assistance to the user's needs. Assist-as-needed strategies (AAN), such as adaptive impedance control, have been reported as prominent strategies to enable this recovery effects. This study proposes an interaction-based assist-as-needed impedance control strategy for an ankle robotic orthosi...
Stress among portuguese medical students: the EuStress solution
Silva, Eliana; Aguiar, Joyce; Reis, L. P.; Oliveira e Sá, Jorge; Gonçalves, Joaquim; Carvalho, VictorThere has been an increasing attention to the study of stress. Particularly, college students often experience high levels of stress that are linked to several negative outcomes concerning academic functioning, physical, and mental health. In this paper, we introduce the EuStress Solution, that aims to create an Information System to monitor and assess, continuously and in real-time, the stress levels of the st...
An ankle-foot prosthesis: A preliminary design and dynamic model
Ferreira, César; Santos, Cristina; Alves, Joana; Seabra, Eurico; Reis, L. P.There are more than one million people, each year, that will suffer a lower limb amputation. This condition occurs as a result of a wide range of diseases: diabetes, trauma or malignant tumors. An amputation means disability and a poor quality of life. The major challenge in the development of a prosthesis lies in restoring the missing human function, i.e. locomotion while maintaining the biomechanical requirem...
Validation of a knee angle measurement system based on imus
Ribeiro, Nuno Miguel Ferrete; Ferreira, César; Reis, L. P.; Silva, Hélder David Malheiro; Macedo, Pedro; Rocha, Luís Alexandre Machado; Santos, CristinaInertial Measurements Unit (IMU) based systems are a purposeful and alternative tool to monitor human gait mainly because they are cheaper, smaller and can be used without space restrictions compared to other gait analysis methods. In the scientific community, there are well-known studies that test the accuracy and efficiency of this method compared to ground truth systems. Gait parameters such as stride length...
Towards Semantic Fusion using Information Quality Awareness to Support Emergenc...
Pereira Junior, Valdir Amancio; Sanches, Mathues Ferraroni; Botega, Leonardo Castro; Coneglian, Caio Saraiva [UNESP]; Rocha, A.; Correia, A. M.Made available in DSpace on 2018-11-26T17:56:07Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-01-01; Information Fusion is the integration of synergic information to support high-level decision-making. Emergency management systems are applications that may take advantage of such integration by supporting system's operators on developing situation awareness (SAW) and dealing with the critical and dynami...
Development of advanced algorithm for measuring bone densitybased on radio grap...
Oliveira, Marcio Teixeira; Gouveia, Luis Borges; Quirino Louzada, Mario Jefferson [UNESP]; Rocha, A.; Reis, L. P.; Cota, M. P.; Suarez, O. S.Made available in DSpace on 2018-11-26T15:31:11Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-01-01; Radiographic densitometry is a technique that allows us to evaluate bone density, using as reference an inert material, such as aluminum. Those techniques allow for the support of the diagnosis of diseases and bone abnormalities such as osteoporosis. To increase the technical precision, some authors pro...
Scalable information system using event oriented programming and NoSQL
Santana, Vagner Jose [UNESP]; Souza, Gabriel Spadon de [UNESP]; Messias Correia, Ronaldo Celso [UNESP]; Garcia, Rogerio Eduardo [UNESP]Made available in DSpace on 2018-11-27T19:23:17Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-01-01; One of many challenges in a web information systems is the capability of staying stable and available as the number of users and requests increase rapidly, what we call scalability. This paper provides a model based on development of events-oriented applications, non-blocking in the environment Node. JS...