Optimisation of stir bar sorptive extraction and liquid desorption combined with large volume injection-gas chromatography–quadrupole mass spectrometry for the determination of volatile compounds in wines

Stir bar sorptive extraction and liquid desorption followed by large volume injection coupled to gas chromatography–quadrupole mass spectrometry (SBSE–LD/LVI-GC–qMS) had been applied for the determination of volatiles in wines. The methodology was optimised in terms of extraction time and influence of ethanol in the matrix; LD conditions, and instrumental settings. The optimisation was carried out by using 10 standards representative of the main chemical families of wine, i.e. guaiazulene, E,E-farnesol, β-ionone, geranylacetone, ethyl decanoate, β-citronellol, 2-phenylethanol, linalool, hexyl acetate and hexanol. The methodology shows good linearity over the concentration range tested, with correlation coefficients higher than 0.9821, a good reproducibility was attained (8.9–17.8%), and low detection limits were achieved for nine volatile compounds (0.05–9.09 μg L−1), with the exception of 2-phenylethanol due to low recovery by SBSE. The analytical ability of the SBSE–LD/LVI-GC–qMS methodology was tested in real matrices, such as sparkling and table wines using analytical curves prepared by using the 10 standards where each one was applied to quantify the structurally related compounds. This methodology allowed, in a single run, the quantification of 67 wine volatiles at levels lower than their respective olfactory thresholds. The proposed methodology demonstrated to be easy to work-up, reliable, sensitive and with low sample requirement to monitor the volatile fraction of wine.

Relatório de estágio sobre a intervenção pedagógica realizada na Escola Básica do 1º Ciclo com Pré-Escolar da Ajuda

O presente relatório de estágio foi realizado para a obtenção do grau de mestre em Educação Pré-Escolar e Ensino do 1º Ciclo do Ensino Básico. Este tem como objetivo descrever todo o trabalho realizado no estágio do 2º ano do Mestrado. Aqui, serão descritas as práticas realizadas em contexto do Ensino do 1º Ciclo do Ensino Básico e Educação Pré-Escolar. De forma a complementar todo o trabalho desenvolvido, fazem parte as reflexões e as estratégias adotadas. Ambos os estágios foram realizados na escola EB1/PE da Ajuda. Não obstante, são peças integrantes deste relatório, o contexto educativo e as características das crianças com que tive o prazer de trabalhar. No trabalho realizado foram utilizados diferentes instrumentos, nomeadamente a observação participante, a recolha documental, as conversas informais e ainda o diário de campo. São ainda descritas as intervenções educativas realizadas com a comunidade educativa. Para finalizar, são apresentadas as reflexões finais de toda a intervenção educativa realizada em ambas as valências.

Teamwork in academia: an empirical study

The Bologna Process introduced some changes in the curriculum of higher education institutions (HEIs) and defined that academic learning should consider the needs of the labour market. HEIs and employers agree that personal skills are the most important set of competence of graduates (Pavlin, Akkuyunlu, Kovacic, & Svetlik, 2009). The goals of this work were to explore how the work experienced by teams of students in HEIs might help them improve their personal skills, namely empirically explore the perception of teamwork and personality into two groups of students. The study was based on the theoretical model of Team Evolution and Maturation (TEAM, Fransen, 2012). The sample consisted of 99 students of the 3rd year of the degree (1st cycle) in Computer Science (49 students) and the 2nd year of the Bachelor's Degree (1st cycle) in Psychology (50 students), from the University of Madeira, Portugal. Areas of personality and team collaboration were evaluated with a Pre- and Post-test. Findings show that the perception of the teamwork collaboration of students in Computer Science and Psychology majors seems to be influenced by their scientific area, by gender, by the selection method of the time-organiser, the self-perceived personality of the time-organiser, the self perceived personality of the non-time-organiser, and the size of the team. It is expected that this data will contribute to further theoretical and practical reflection on the teamwork among college students and their performance in the labour market.