2.3 Instruments utilisés
2.3.3 Emotion-Related Parental Styles (ERPS)
Rebelo, Joana, Faculdade de Ciências da Nutrição e Alimentação da Universidade do Porto, Portugal
Santos, Maria Cristina Teixeira, Faculdade de Ciências da Nutrição e Alimentação da Universidade do Porto, Portugal
Teixeira, Beatriz, Faculdade de Medicina da Universidade do Porto, Portugal
Poinhos, Rui, Faculdade de Ciências da Nutrição e Alimentação da Universidade do Porto, Portugal
Afonso, Cláudia, Faculdade de Ciências da Nutrição e Alimentação da Universidade do Porto, Portugal
Introduction: Healthy eating is crucial for the normal growth and development of young people of school age, as well as for the promotion of their health, preventing diseases which one of the main risk factors is inadequate eating habits. Young people spend the majority of their time at school where they usually have at least one meal. It is important to promote healthy and adequate nutrition in the school community.
Aim: Evaluate the food consumption of students in secondary education at a private school and identify the main associated factors.
Methodology: The sample covered 135 students. A questionnaire was developed and directly applied, including socio-demographic and lifestyle information, food consumption in the previous 24 hours and place of consumption of meals (school or outside). The data descriptive analysis was followed by uni and multifactorial analysis to characterize the study sample according to the defined objectives.
Results: Most of the respondents did not consume complete meals, being dinner the most incomplete one (89.6%). The school canteen is the usual lunch spot for 63.7% of the students, while 24.4% do it outside the school and 11.9% take packed lunch. Lunches held in the school canteen and out of the school were more complete than those consumed by packed lunches. All of the participants practiced physical activity at school and spent an average of 2.7 hours in sedentary activities. The possibility of practicing a complete/ adequate lunch decreases with increasing hours of physical inactivity.
Conclusion: Most of the students did not eat meals completely, nor performed the recommendations of physical activity. A negative relationship with statistical significance was found between the practice of a complete/ adequate lunch and the hours of physical inactivity. Keywords: Food consumption; Lunch place; Lifestyles; School age; Private school
16882 | Oxygen uptake repeatability at different swimming intensities
Elói, A., Faculdade de Desporto da Universidade do Porto, PortugalMonteiro, A. S., Faculdade de Desporto da Universidade do Porto, Portugal Cardoso, F., Faculdade de Desporto da Universidade do Porto, Portugal Coelho, E., Faculdade de Desporto da Universidade do Porto, Portugal Fernandes, A., Faculdade de Desporto da Universidade do Porto, Portugal Carvalho, D. D., Faculdade de Desporto da Universidade do Porto, Portugal Alves, M. N., Faculdade de Desporto da Universidade do Porto, Portugal
Castro, F. A., School of Physical Education, Physiotherapy and Dance, Aquatic Sports Research Group, Federal University of Rio Grande do Sul, Porto Alegre, Brazil, Portugal
Vilas-Boas, J. P., Faculdade de Desporto da Universidade do Porto, Portugal Zacca, R., Faculdade de Desporto da Universidade do Porto, Portugal Fernandes, R. J., Faculdade de Desporto da Universidade do Porto, Portugal
Oxygen uptake (VO2) is considered an important physiological variable in swimming, particularly for performance evaluation. However, studies that aim to analyze its stability over time are very scarce. Our aim was to assess the VO2 repeatability at different swimming intensities in a short- time period. Eight swimmers (25.0 ± 6.6 years old, 175.4 ± 8.5 cm of height and 71.7 ± 10.3 kg of body mass) performed a 7 x 200 m front crawl protocol (increments of 0.05 m·s-1 and 30 s intervals) in two different moments (M1 and M2), two days apart. Respiratory gas exchange was continuously measured breath-by-breath using a portable gas analyzer (Cosmed, Italy) and VO2 values were obtained by the average of the last step final 30 s. Swimming velocity was controlled using a visual pacer (KulzerTEC, Portugal) with flashing lights placed on the bottom of the pool. A paired student’s t-test was used, as well as correlation and dispersion coefficients. VO2 values obtained in M1 and M2 were (respectively): (i) 29.9 ± 4.6 vs 29.7 ± 3.8, 33.1 ± 5.0 vs 33.2 ± 5.0, 36.0 ± 5.5 vs 35.5 ± 5.3 and 38.2 ± 4.8 vs 38.9 ± 5.1 ml·kg-1·min 1 (at the low to moderate intensity domain); (ii) 42.1 ± 5.6 vs 41.3 ± 5.2 and 44.5 ± 6.8 vs 43.9 ± 6.4 ml·kg-1·min 1 (at the heavy intensity domain); and (iii) 47.4 ± 6.2 vs 45.7 ± 5.9 ml·kg-1·min 1 (at the severe intensity domain). Similar values were observed between M1 and M2 (p>0.05; d=-0.1-0.6) for all intensity steps and excellent direct correlations were observed (r>0.90; p≤0.05). In addition, the intraclass correlation coefficient (ICC) was excellent (ICC>0.90; p≤0.001) and there was a high level of agreement between values for all steps (bias: -0.2-1.7 ml·kg-1·min 1). Finally, the variation and repeatability coefficients between M1 and M2 ranged from 2.3-3.8% and from 1.8-3.4 ml·kg- 1·min-1 (respectively). Data evidenced a great repeatability in the VO2 values at different swimming intensities in a short-time period.
16885 | Biocide potential of eucalypt leaf biomass generated after a wildland fire
Pinto, Mafalda, GreenUPorto/FCUP, PortugalSoares, Cristiano, GreenUPorto/FCUP, Portugal Sousa, Bruno, GreenUPorto/FCUP, Portugal Martins, Maria, GreenUPorto/FCUP, Portugal
Valente, Ines, REQUIMTE/LAQV/ICBAS/FCUP, Portugal Rodrigues, Jose Antonio, REQUIMTE/LAQV/FCUP, Portugal Pereira, Ruth, GreenUPorto/FCUP, Portugal
Fidalgo, Fernanda, GreenUPorto/FCUP, Portugal
Along with climate change, the native forest replacement by exotic species, such as Eucalyptus globulus Labill., is contributing to a highly fire-prone environment. Since E. globulus detains many strategies for regenerating vegetative growth, sustainable practices are needed to manage eucalypts stands. In this context, eucalypts´ allelopathic potential can be used for weed control. However, effective doses, application modes, action mechanisms and environmental safety of eucalypt-based biocides are still unknown. In this way, this study aimed to develop an eco-friendly biocide from young eucalypts leaves, resulting from the sprouting after a wildfire. For this purpose, leaves from E. globulus of a recently burned area were collected and used to prepare 3 types of aqueous extracts (100 g/L), with: fragments of fresh leaves(FF); fragments of dried leaves(DF); powder-grinded leaves(DP). Each extract was diluted to achieve the concentrations of 0, 25, 50 and 100 g/L. Afterwards, in order to test the most effective processing mode and applied dose, purslane ( Portulaca oleracea L.) plantlets were foliar sprayed, 5 times a week, with each dilution of every extract. Glyphosate was used as a positive control. For 1 month, macroscopic toxicity and mortality were monitored. Results showed that DF had the most powerful herbicide activity, while FF was the least effective extract, comparing to the control (untreated plants). Moreover, all extracts impaired the normal shoot and root growth, especially DF, in a concentration-dependent manner. However, regarding lipid peroxidation and photosynthetic pigments, no differences were detected between groups. Overall, aqueous extracts made from young eucalypts leaves possess high biocide activity, especially when dried and reduced to small fragments. Additional studies are being carried out to obtain the phytochemical profile of the biocide, as well as to assess its environmental safety to non-target plants.
16888 | Justice in Education
Pereira, Ana Cláudia, Faculdade de Direito da Universidade do Porto, Portugal
This paper, carried out in the field of Philosophy of Law, deals with chapter VIII of Michael Walzer's The Spheres of Justice , entitled "Education." Specifically, I will address two particular issues: basic and specialized education, and their distribution criteria.
The aforementioned author fits into communitarianism - a philosophical conception that seeks to offer a definition of justice through the recognition of a diversity of ethnic cultural identities evident in today's society. It is therefore pluralistic in the sense that it admits that different societies look at justice differently.
Considers that in society there is a process of distribution of social goods, each of the spheres of justice being composed of one or more of these goods. In his work, Walzer presents those which he considers to be somehow unanimous, one of them being precisely the sphere of education. Using a concept of complex equality, the author presents those that he considers to be the fairest distribution criteria for education. To do so, he uses various examples from real life, from a historical perspective, to illustrate his thesis.
In this exhibition, I propose to analyze his conception of justice, as well as to present some points which, in my opinion, are susceptible to densification or improvement.