José A. Diniz

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The use of technology can be seen as an innovative challenge to restructure the teaching-learning process and integrate ICT in independent, collaborative and interactive work. The thoughts of 32 teachers and 36 students vis-à-vis a Course Management System from five undergraduate courses were analysed. A systematic content analysis was merged with a(More)
The use of technology can be seen as an innovative challenge to restructure the teaching-learning process and integrate Information and Communication Technologies (ICTs) in independent, collaborative and interactive work. The main purposes of this study are to understand users' needs and to identify their profiles, in order to empower the quality of online(More)
BACKGROUND This study examines associations between perceptions of neighbourhood environment and physical activity and sports within Portuguese adolescents. METHODS The sample consisted of 4,877 individuals of both genders, with an average age of 14 years. The instrument used was the Health Behavior School-aged Children questionnaire. RESULTS(More)
In a blended education context, Learning Management Systems (LMS) can be thought to integrate collaborative and interactive learning activities; this, however, requires a strong institutional and sociocultural commitment from all stakeholders. Consequently, an empirical study that aims at identifying learners' profiles and uses them as an optimization(More)
For LOCOS application, silicon nitride (SiN x) insulators have been deposited by ECR–CVD at room temperature and with N 2 flows of 2.5, 5, 10 and 20 sccm on pad-SiO 2 /Si or on Si substrates. The obtained SiN x /Si structures were used to analyze the SiN x characteristics. FTIR analyses reveal the presence of Si–N and N–H bonds. The refractive indexes(More)
The incidence of infection with HIV/AIDS among the heterosexual population has been increasing in young adults. The goal of this research was to deepen knowledge of preventive sexual behavior in Portuguese adolescents, including knowledge and attitudes about HIV/AIDS, and assessing whether they changed from 2002 to 2006. Data were collected through a(More)