The purpose of this article is to analyse the loss of validity in the principles of universality and equality that lead the international system of Human Rights, in the wake of the refugee crisis that arose in Europe in 2014.The main idea is that the massive arrival of refugees Face mask due to the violence in the Middle East revealed severe humani
Long-term experimental evolution reveals purifying selection on piRNA-mediated control of transposable element expression
Abstract Background Transposable elements (TEs) are an almost universal constituent of eukaryotic genomes.In animals, Piwi-interacting small RNAs (piRNAs) and repressive chromatin often play crucial roles in preventing TE transcription and thus restricting TE activity.Nevertheless, TE content varies widely across eukaryotes and the dynamics of TE a