Title:¿Cómo se relacionan las características de los profesores con el bullying escolar? / How do teachers' characteristics influence bullying at school?
Title:[Phylogeography and genetic structure of the species complex of the freshwater stingray, Potamotrygon orbignyi (Castelnau, 1855), among Amazonas and Orinoco rivers] / Uncovering evolutionarily significant units inside the species complex of the freshwater stingray, Potamotrygon orbignyi (Castelnau, 1855), among Amazonas and Orinoco rivers