Gestão da visibilidade LGB no contexto do ensino superior

O presente estudo tem como principal objetivo a compreensão da forma como lésbicas, gays e bissexuais gerem a visibilidade da sua orientação sexual no contexto do ensino superior, bem como a relação entre esta com a perceção da discriminação nesse contexto. Neste sentido, foi utilizada uma amostra de 289 estudantes de instituições do ensino superior de todo o país. Para esta avaliação, foram utilizados dois instrumentos: a Escala de Gestão da Visibilidade da Orientação Sexual (Lasser, Ryser & Price, 2010) e o Questionário de Gestão da Visibilidade e Discriminação em Contextos do Ensino Superior, criado para esta investigação. Os principais resultados apontam diferenças na gestão da visibilidade quanto ao género, orientação sexual, visibilidade da orientação sexual, visibilidade da orientação sexual perante a família, nível de religiosidade e ciclo de estudos. No que diz respeito à perceção de discriminação, os resultados apresentam diferenças quanto à orientação sexual e à área de estudos. Por fim, os resultados conclusivos mostram que existe uma correlação entre a visibilidade da orientação sexual e a perceção de discriminação, no contexto do ensino superior; Abstract: This study aims to understand how lesbian, gay and bisexual (LGB) manage the visibility of their sexual orientation in the context of higher education, as well as the relationship between this management with their perception of discrimination. In this sense, we used a sample of 289 students from higher school institutions across the country. For this evaluation, two instruments were used: the Visibility Management Scale of Sexual Orientation (Lasser, Ryser & Price, 2010) and the Visibility Management and Discrimination in Contexts of Higher Education Questionnaire, created for this research. The main results show that participant’s gender, sexual orientation, visibility of sexual orientation, visibility of sexual orientation within the family, level of religiosity and course of study are related to the management visibility of sexual orientation. With regard to the perception of discrimination, the results showed differences in sexual orientation and study area. Finally, the conclusive results show that there is a correlation between the visibility of sexual orientation and the perception of discrimination in the context of higher education.

Implementation and Validation of a Self-Consumption Maximization Energy Management Strategy in a Vanadium Redox Flow BIPV Demonstrator

This paper presents the results of the implementation of a self-consumption maximization strategy tested in a real-scale Vanadium Redox Flow Battery (VRFB) (5 kW, 60 kWh) and Building Integrated Photovoltaics (BIPV) demonstrator (6.74 kWp). The tested energy management strategy aims to maximize the consumption of energy generated by a BIPV system through the usage of a battery. Whenever possible, the residual load is either stored in the battery to be used later or is supplied by the energy stored previously. The strategy was tested over seven days in a real-scale VRF battery to assess the validity of this battery to implement BIPV-focused energy management strategies. The results show that it was possible to obtain a self-consumption ratio of 100.0%, and that 75.6% of the energy consumed was provided by PV power. The VRFB was able to perform the strategy, although it was noticed that the available power (either to charge or discharge) varied with the state of charge.

Assessment of environment, land management, and spatial variables on recent changes in montado land cover in southern Portugal

Montado decline has been reported since the end of the nineteenth century in southern Portugal and increased markedly during the 1980s. Consensual reports in the literature suggest that this decline is due to a number of factors, such as environmental constraints, forest diseases, inappropriate management, and socioeconomic issues. An assessment on the pattern of montado distribution was conducted to reveal how the extent of land management, environmental variables, and spatial factors contributed to montado area loss in southern Portugal from 1990 to 2006. A total of 14 independent variables, presumably related to montado loss, were grouped into three sets: environmental variables, land management variables, and spatial variables. From 1990 to 2006, approximately 90,054 ha disappeared in the montado area, with an estimated annual regression rate of 0.14 % year-1. Variation partitioning showed that the land management model accounted for the highest percentage of explained variance (51.8 %), followed by spatial factors (44.6 %) and environmental factors (35.5 %). These results indicate that most variance in the large-scale distribution of recent montado loss is due to land management, either alone or in combination with environmental and spatial factors. The full GAM model showed that different livestock grazing is one of the most important variables affecting montado loss. This suggests that optimum carrying capacity should decrease to 0.18–0.60 LU ha-1 for livestock grazing in montado under current ecological conditions in southern Portugal.