A orientação homossexual e as investigações acerca da existência de componentes biológicos e genéticos determinantes; The homosexual orientation and investigations about the existence of components biological and genetics determinants

The male and female homosexual orientation has substantial prevalence in humans and can be explained by determinants of various levels: biological, genetic, psychological, social and cultural. However, the biological and genetic evidence have been the main hypotheses tested in scientific research in the world. This article aims to review research studies about the existence of genetic and biological evidence that determine homosexual orientation. Was conducted a review of the literature, using the database MedLine/PubMed and Google scholar. The papers and books were searched in Portuguese and English, using the following keywords: sexual orientation, sexual behavior, homosexuality, developmental Biology and genetics. Was selected papers of the last 22 years. Were found five main theories about the biological components: (1) fraternal birth order, (2) brain androgenization and 2D:4D ratio; (3) brain activation by pheromones; and (4) epigenetic inheritance; and four theories about the genetic components: (1) genetic polymorphism; (2) pattern of X-linked inheritance; (3) monozygotic twins; and (4) sexual antagonistic selection. Concluded that there were many scientific evidence found over time to explain some of biological and genetic components of homosexuality, especially in males. However, today, there is no definitive explanation about what are the determinants of homosexual orientation components.

O Binómio «Esquerda/Direita» no Portugal pós-25 de Abril

A esquerda e a direita estão, passados 35 anos, diferentes do que eram, mas iguais na clivagem que as distingue. PCP e CDS/PP alargaram até o grau de polarização, PS e PSD tornaram-se amiúde irmãos siameses que o eleitorado premeia ou penaliza ciclicamente, mas aos quais concede, desde 1975, o seu voto de confiança. na verdade, desde então o PCP está sozinho à esquerda e o CDS/PP à direita, aguardando sempre que um dos partidos chamados a formar governo (PS ou PSD) necessite de uma coligação.

Fifty Years After Angicos : Paulo Freire, Popular Education and the Struggle for a Better World that is Possible

The main thesis of this paper is that Freire’s original experience in Angicos anticipated a grand design for social transformation of educational systems. As such it brought together two key concepts that formulated the basis of his educational system: popular culture as an counter-hegemonic project and popular education, more particularly what was later called citizen schools or public popular education as keystone of his new educational system. I use the term Paulo Freire System to show that his original attempts were not only to challenge pedagogical the prevailing banking education system that was so pervasive in Brazil and Latin American at the time. In challenging the hegemony of banking education, its narrative, theoretical foundations, epistemology and methodology, Freire and his team sought to create a new system that could replace the old one. They saw banking education not only as obsolete in terms of modernization of systems but also oppressive in gnoseological, epistemological and political terms. In the conclusion of this paper I will discuss the twins obsessions of Freire, already present in the Angicos experience and that will stay with him throughout his life: the relationship between democracy, citizenship and education, and education as a postcolonial ethical act of social transformation. I would like to emphasize therefore that the Paulo Freire system, as conceived in the Angicos experience and its aftermath was a much larger and comprehensive system that originally considered, even by his critics.