Browsing by Issue Date, starting with "2025-07-22"
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- Potential of Marine Biomolecules: Advances in Extraction and Applications of Proteins, Polysaccharides, and Antioxidant CompoundsPublication . Sousa, Gabriela; Ferreira-Dias, Suzana; Tecelão, Carla; Alves, Vítor D.Oceans are increasingly viewed as a new frontier for economic development, contributing to the bridge between food industry, sea bioeconomy, and health. Nowadays, oceans are under attention as a strategy for creating opportunities and driving innovation, and their vital importance will become even more evident in the years to come. Therefore, it is crucial to study oceans under a holistic approach, taking the maximum value of their abundant resources in a sustainable way. As such, blue bioeconomy is the path forward, since it is a development strategy that meets the economic potential without compromising the environmental health. A special look needs to be taken at the underutilized resources and by-products, which hold unexploited value. For instance, green macroalgae are widespread marine macroalgae that lack industry applications, despite being rich in biopolymers (polysaccharides) and antioxidants. Moreover, fish by-products are also rich sources of biopolymers, mostly proteins. Thus, among other potential uses, raw materials could be explored to produce functional edible coatings under a blue bioeconomy approach. A detailed characterization of raw materials is the first step for the development of value-added products. These topics will be addressed in this review.
- The moderation role of self-efficacy on the relationship between transformational leadership and enjoyment in physical educational studentsPublication . Sánchez García, C.; Reigal, R. E.; Monteiro, Diogo; Hernández Martos, J.; Hernández Mendo, A.; Morales Sánchez, V.Background: Enjoyment in physical education classes is recognized as a key factor in fostering a positive relationship with physical activity. Its significance as a component for sports participation is emphasized. Purpose: This study investigates the moderating role of self-efficacy in the relationship between the transformational leadership of physical education teachers and students’ enjoyment during classes. The hypothesis is that students’ perceived self-efficacy moderates this relationship. Methods: An associative and explanatory approach was employed. The study involved 429 adolescents (205 boys, 224 girls) aged 14–16 from the province of Málaga, Spain. Data was collected using three questionnaires: the Transformational Teaching Questionnaire to assess the teacher’s transformational leadership, the Motor Self-Efficacy Scale to measure students’ motor self-efficacy, and the Intrinsic Satisfaction in Sport Instrument to evaluate students’ enjoyment in physical education classes. Results: The findings revealed a positive relationship between teachers’ transformational leadership and students’ enjoyment in physical education classes. Moreover, students’ motor self-efficacy was found to moderate this relationship: Specifically, the positive effect of transformational leadership on enjoyment was more pronounced among students with low self-efficacy, whereas the effect was less evident among students with high self-efficacy. Discussion: The study concludes that transformational leadership influences students’ enjoyment in physical education classes, but its impact is moderated by students’ perceived self-efficacy. These results emphasize the importance of training physical education teachers in transformational leadership strategies to improve students’ experiences, fostering active and healthy lifestyles from adolescence into adulthood.