Técnico

learning. The emergence of new educational scenarios has led us to conduct this research to understand the challenges and opportunities of integrating mobile phone, into teaching and learning. It was proposed a framework based on constructivist approaches, in Activity Theory and ARCS Model, which underlies the study. The study analysed how students appropriated mobile phones as a learning tool, assessed the mobile phone as a mediation tool in learning activities and discussed the potentials and limitations of their integration in teaching and learning process. To achieve these objectives we have established a variety of curricular activities mediated by students' mobile phones and developed in the Portuguese and French school subjects. It is a qualitative research with multiple study cases (four), but with one unit of analysis only. Sixty-eight students from two urbans schools, one a State secondary school and the other a semiprivate vocational school, attended this study. This is an exploratory study, due to the scarcity of studies in the area, because it is the integration of new technology, such as the mobile phone, into teaching. The data collection techniques used were inquiry and observation. We developed and validated four questionnaires and two guidelines (one for individual interviews and the other for a focus group). The first questionnaire aimed to characterise the participants, the second questionnaire collected students’ reactions to the…

importante na neoangiogénese do adulto, pelo que constitui um alvo terapêutico a explorar. Study of the Delta4 function in the regulation of angiogenesis Abstract The vascular system is one of the most important in mammals and the first to become functional during embryonic development. Its formation requires the complex coordination of several genetic and cellular mechanisms. Understanding these mechanisms is highly important for the development of new therapies devised to inhibit or…