AutoSTEM na formação inicial de educadores/as e professores/as dos 1º e 2º ciclos : relato de oficinas

Neste trabalho são apresentados os objetivos e principais caraterísticas do projeto Erasmus+ Automata for STEM nr 2018-1-PT01-KA201-047499, descrevendo-se também, neste âmbito, oficinas implementadas na formação inicial de educadores/as e professores/as do 1.º e 2.º ciclos do ensino básico e analisados autómatos construídos. As oficinas seguiram uma estrutura semelhante, envolvendo a apresentação de objetivos, modelo pedagógico e recursos educativos desenvolvidos e o projeto, construção e apresentação, pelas participantes, de um autómato. A análise dos protótipos construídos evidencia que todas as participantes construíram pelo menos um autómato, o que pode ser considerada uma evidência de envolvimento ativo na tarefa. Constata-se também que os protótipos construídos contêm elementos dos modelos previamente apresentados no início da oficina, mas contêm também outros elementos propostos pelas participantes, tanto em termos de narrativa, como de mecanismos, o que pode ser considerada uma evidência do potencial criativo das atividades, na sua maioria hand-on e da mobilização de conhecimentos STEM.info:eu-repo/semantics/publishedVersio

Mobility of highly qualified portuguese professionals to Europe

Skilled emigration has been analyzed according to two contrasting models: a) the model of the exodus that stresses the idea that more skilled individuals are forced to the exile, allowing them to get a job and a remuneration corresponding to their training; b) the model of the Diaspora that stresses the mutual benefits of intercultural exchanges opened by the circulation of academic, scientific and cultural cosmopolitan elites. This research aims to test the comprehensive power of each of these theses referencing to the various types of mobility of highly qualified Portuguese professionals to Europe in the last decade. The research strategy is suitable to the characteristics of an exploratory study. Articulating an extensive research with an in-depth analysis we seek to identify the subjectivity of the direct actors of emigration in some of its main working contexts. We use a mixed strategy which makes use of multilateral technical quantitative and qualitative data collection: questionnaire surveys; life stories and interviews with focus groups that will draft the life trajectories. Using a multiple case methodology we will describe and compare the circumstances, the modalities and the characteristics of the mobility of two types of migration of high skilled Portuguese individuals in Europe

Enhancing the longevity and functionality of Ti-Ag dry electrodes for remote biomedical applications: a comprehensive study

This study aims to evaluate the lifespan of Ti-Ag dry electrodes prepared using flexible polytetrafluoroethylene (PTFE) substrates. Following previous studies, the electrodes were designed to be integrated into wearables for remote electromyography (EMG) monitoring and electrical stimulation (FES) therapy. Four types of Ti-Ag electrodes were prepared by DC magnetron sputtering, using a pure-Ti target doped with a growing number of Ag pellets. After extensive characterization of their chemical composition and (micro)structural evolution, the Ti-Ag electrodes were immersed in an artificial sweat solution (standard ISO-3160-2) at 37 °C with constant stirring. Results revealed that all the Ti-Ag electrodes maintained their integrity and functionality for 24 h. Although there was a notable increase in electrical resistivity beyond this timeframe, the acquisition and transmission of (bio)signals remained viable for electrodes with Ag/Ti ratios below 0.23. However, electrodes with higher Ag content (Ag/Ti = 0.31) became insulators after 7 days of immersion due to excessive Ag release into the sweat solution. This study concludes that higher Ag/Ti atomic ratios result in heightened corrosion processes on the electrode’s surface, consequently diminishing their lifespan despite the advantages of incorporating Ag into their composition. This research highlights the critical importance of evaluating electrode longevity, especially in remote biomedical applications like smart wearables, where electrode performance over time is crucial for reliable and sustained monitoring and stimulation.This research was funded by the European Regional Development Fund (ERDF) through the Operational Programme for Competitiveness and Internationalization (COMPETE 2020) under Portugal 2020, in the framework of the NanoStim (POCI-01-0247-FEDER-045908) and NanoID (NORTE-01-0247-FEDER-046985) Projects

Mobility of high skilled professionals: the brain waste and the brain gain

The literature review allows us to conclude that the traditional perception of the brain drain has no empirical evidence on the aggregate level, being necessary the understanding of the circumstances and factors that influence the process in each country. This research aims to make a study of this type in the Portuguese context, still innovating in conceptual and methodological terms: first, refusing the logic of globalizing assumptions of human capital theory, guessing that migration can be caused by factors other than not pay gap by analyzing the set of factors of attraction-repulsion; on the other hand, guessing that the international job system is not a space entirely free and therefore is not only dependent on the free play of supply and demand, is also necessary to observe the biographical trajectories in order to understand the reasons and destinations of migration. The multiple case studies are intended to test the theoretical hypotheses presented in the literature