Mineralogia da argila de latossolos estimada por alocação a partir do teor total de óxidos do ataque sulfúrico.

E apresentado um metodo de alocacao que estima a composicao mineralogica da argila de latossolos a partir dos teores de oxidos pelos metodos do ataque sulfurico e da difracao de raios X. Esse metodo e adequado para latossolos cuja fracao argila e constituida predominantemente decaulinita, gibbsita, hematita e goethita

Portuguese Adaptation of Students Engagement in Schools International Scale (SESIS)

The importance of student’s engagement has been recently pointed out in research. However, there has been a lack of engagement assessment instrument, pertaining psychometric qualities. Objective: This paper presents the Portuguese adaptation of the “Student’s Engagement in School International Scale” (SESIS), drawn up from a12 countries international study (Lam et al., 2012; Lam et al., in press). Method: Psychometric properties of this scale were examined with data from 685 students from different grades (6th, 7th, 9th and 10th), from both sexes, and different regions of the country. Results: Factorial analysis of the results, with varimax rotation, lead to three different factors which explain 50.88% of the variance. The scale integrates the original 33 items, and cognitive, affective and behavioural dimensions. For the external validity study, the relationship between student’s engagement in school results and other school variables — academic performance, self-concept — was considered, and significant relations were observed, as expected. Conclusion: The data presented highlights the qualities of SESIS, as well as its usefulness for research purposes. Suggestion: It is suggested the investigation of the extension of SESIS’s three-dimensionality, in future studiesKeywords: Innovation, technology, research projects, etc. [Arial 10-point, justified alignment]

Molecular model of TriBP1, a protein involved in nuclear import.

Further structural analysis will be performed in order to understand the biological properties and roles of TriBP1 and TriBP2.X-meeting 2007