Browsing by Issue Date, starting with "2025-12-05"
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- European integration through open-ended mechanismsPublication . Torres, FranciscoThe book analyses the building of the European Union’s governance framework from the point of view of the sustainability of the European integration process. It departs from the premise that the evolution of that framework hinges on some degree of preference convergence to have occurred or to occur. It addresses two fundamental EU institutions that were built as open-ended mechanisms: Economic and Monetary Union and the European Green Deal. In doing so, it also discusses the importance of ‘openness’ to further political integration and the limits of differentiated integration.
- Alkaline extraction of phenolic compounds from Eucalyptus leaves: influence on antioxidant and antimicrobial activityPublication . Afonso, Tiago B.; Bonifácio-Lopes, Teresa; Costa, Eduardo; Macedo, Tiago; Moreira, Joana; Oliveira, Juliana; Pintado, ManuelaIntroduction: The valorization of agro-industrial by-products is a strategic approach to reducing biomass waste while advancing circular bioeconomy practices. Eucalyptus leaves, an abundant residue from the forestry and pulp industries, are particularly rich in phenolic compounds with well-known antioxidant and antimicrobial activities. These bioactivities highlight the potential of eucalyptus extracts for sustainable applications in the cosmetic and textile industries. However, their efficient recovery requires optimized extraction methodologies capable of disrupting the complex plant matrix and maximizing compound release. The aim of this study was to investigate how variations in eucalyptus particle size and alkali concentration can enhance the recovery of phenolic-rich extracts with bioactive potential. Conclusions: Alkaline extraction proved capable for recovering phenolic compounds from eucalyptus leaves, yielding extracts with relevant antioxidant and antimicrobial activities. However, the extracts showed cytotoxicity at the tested concentrations, highlighting the need for further optimization of extraction parameters and the establishment of safe concentration ranges before potential use in applications such as cosmetics or textiles.
- La institucionalización de los boy-scouts en el imperio portugués. El caso de Mozambique (1914-1939)Publication . Graça, Gonçalo BritoThe institutionalization of scout associations in the Portuguese colony of Mozambique opened a new period of social framing of youth. This project was early supported by the Republican Government in Lisbon in 1914 and aimed at a new and modern European archetype of civilization, under specific models of gender, religion and race. Despite the existence of several works dedicated to daily life in the last years of the Portuguese empire, it is still necessary to look at scout associations an understand how those became extinct in 1939, with their consequent transfer to the state youth organization Mocidade Portuguesa. Thus, the colony of Mozambique was selected as a sample, since during the period between world wars it has revealed how scouting associations in the empire assumed to be a very complex roundabout in colonial politics.