Repositório IC-Online
Institution's Scientific Repository
Recent Submissions
Veggies4myHeart Project: food and nutrition education tools for pre-schoolers – a SWOT analysis
Publication . Braga-Pontes, Cátia; Custódio, Susana; Graça, Pedro
Background: Nutrition education tools to promote vegetable consumption in the school context appear as enhancers of children's knowledge and eating behaviors. The purpose of this study is to assess the perspective of the different stakeholders of the Veggies4myHeart project regarding the potential of a digital game, child storybook and the Portuguese Food Wheel Guide to promote vegetable consumption in preschool age. Methods: The sample consisted of 26 participants who were involved in Veggies4myHeart project. This is a qualitative study, using thematic content analysis. The answers were analyzed using the WebQDA qualitative analysis software. Results: Considering the SWOT analysis were identified strengths, weaknesses, opportunities and threats for each nutrition education tool. Participants identified a greater number of positive and negative aspects regarding digital game. Conclusions: This study has allowed the perspective of creators and/or users of food education tools to be known in relation to their potential to promote the consumption of vegetables at pre-school age. A SWOT analysis of each food education tool gives the possibility to know the constraints or potentialities that may be associated with the dissemination of these tools in the educational community.
Effect of shoulder cavity and welding parameters on friction stir welding of thin copper sheets
Publication . Leal, R. M.; Sakharova, N.; Vilaça, P.; Rodrigues, D. M.; Loureiro, A.
The aim of this investigation was to study the influence of shoulder cavity and welding parameters on torque, defect formation, microstructure and mechanical properties of friction stir welds in very thin sheets of deoxidised copper. Three types of tools were used: a flat shoulder tool and two tools with conical shoulder cavities of 3 and 6° respectively. The welding parameters analysed were tool rotation and traverse speeds. It was observed that the torque, the microstructure and hardness and the formation of defects in the welds are influenced mainly by tool rotation speed and, to a lesser extent, by the traverse speed and shoulder cavity. The tensile properties of welds carried out at high rotation speeds are little affected by the shoulder cavity.
COVID-19 and the Educational Area: Emotional Management and Well-Being in Teachers
Publication . Trindade, Bruno M. M. C.; Pocinho, Ricardo F. S.; Afonso, Paulo J. M.; Santos, Domingos F. C.; Silva, Pedro N. M.; Silveira, Paulo A. A. L.; Santos, Gisela A. R.
The pandemic caused by COVID-19 had and still has implications in the social relationship between human beings and at the school level and families with school-age children and young people. The school had to quickly conceive an effective intervention plan regarding learning. Teachers, some with more, others with less training in Educational Technology, had to, in record time, modify their entire methodological plan of intervention with their students. This research team decided to study the implications of this pandemic in the educational context in the teaching community. This research focuses on the repercussions of the pandemic on teachers' emotional management and psychological well-being through an online questionnaire (Google Forms) administered between the beginning of the school term in September 2020 and March 2021.
Descrever e interpretar visões do mundo: consciência crítica da linguagem e literacia cultural em contexto de ensino do Português como Língua Estrangeira
Publication . Alexandre, Marta; conde, ines
Learning a foreign language involves more than merely developing skills related to the knowledge and use of
grammatical structures for specific communicative purposes. It is a process that also integrates the recognition
of discursive configurations, often ideological, that may be revealed in texts, particularly in specific cultural
and social contexts of production and dissemination. Within a globalised world and in various communication
contexts, often with an intercultural dimension, hegemonic discourses are produced and disseminated around
beliefs, identities, events and geographies, which in some way sustain and naturalise unequal power relations
and areas of tension and conflict. This work aligns with theoretical perspectives that recognise the importance
of discursive and critical shifts in language teaching and intercultural communication, as well as with
approaches that understand language as a social practice, namely Critical Multimodal Discourse Analysis. It is
argued that teaching and learning contexts for Portuguese as a Foreign Language (PLE) benefit from training
critical awareness of language through its different modes of realisation, and from teaching cultural literacy. In
particular when framed by these approaches and equipped with strategies that facilitate the acquisition and
application of socially committed textual analysis tools, PLE teaching methodologies enable students to
question and evaluate texts in Portuguese in relation to their everyday and professional practices. They also
facilitate the mastery of different modes of meaning and an understanding of how they work, making this
explicit. To begin with, this article describes and explains a learning sequence for critical discourse analysis of
authentic multimodal texts in Portuguese, involving classroom tasks and independent work. The sequence was
implemented in the context of the Discourse and Multimodality course unit, part of the Applied Portuguese
Language course taught at the School of Education and Social Sciences of the Polytechnic Institute of Leiria to
Chinese students in the 2023/2024 academic year. In this context, the portfolio resource is highlighted as an
element of individual application and assessment of knowledge, and the results of the application of the
proposals are discussed, with reference to works describing and interpreting elements of connotation and
interdiscursive configurations in texts selected by the students and included in their portfolios. As a result, the
textual analysis work carried out by the students reveals that exposure to authentic texts, which allows them to
describe and interpret verbal and visual choices, and the types of relationships that different modes establish
between themselves, enables them to develop a critical and socially committed cultural awareness. There was
evidence of students identifying and questioning the interrelationship between language, culture, economics,
ideology and power, as well as the materiality of representation, both verbal and visual, and, very importantly,
the social and communicative specificities of the texts.
Experimental and numerical characterization of single-phase pressure drop and heat transfer enhancement in helical corrugated tubes
Publication . Cruz, Gonçalo G.; Mendes, Miguel A. A.; Pereira, José M. C.; Santos, H.; Nikulin, A.; Moita, Ana S.
The internal flow in corrugated tubes of different helical pitch, covering from the laminar to turbulent regime, was studied in order to characterize the three-dimensional flow and the influence of corrugation geometry on pressure drop and convective heat transfer. With water as working fluid and an imposed wall heat flux, ranging from around 4 to 33 kW/m2, a numerical model was developed with a CFD commercial software, where k−ω SST was used to model turbulence. Experimental tests were performed covering Reynolds numbers in the range from around 300 up to 5000, which allowed to identify the transition region and validate the numerical model. The results show that due to the swirl induced by the corrugation, the critical Reynolds number for the start of transition to turbulent flow is reduced. The thermal performance factor, which quantifies the heat transfer enhancement at the expense of pressure drop, was used to compare the corrugated tubes against the reference case of smooth tube. Based on this, all investigated corrugated geometries performed better than the smooth tube, except for low Reynolds numbers (Re<500) in the laminar regime. Overall, the corrugated tube with the lowest pitch showed a clearly better performance for the intermediate range of Reynolds numbers (1000