From the interest in corroborating the positivist and non-positivist counterpoints towards the (re)signification of the different pedagogical practices that seek to transform teaching-learning, postures from the absolute positivist approach (19th century), the neopositivism and postpositivism until arriving at interpretivism with approaches to the critical social approach, that is, moving from a manipulable experimental methodology to a dialogical-dialectical methodology where critical postures and trends reveal a new school with a tendency to be (re)signified by new pedagogical practices. The article seeks an approach to the state of the art related to the pedagogical practice in mathematics, in such a way that teacher training is oriented towards new approaches that (re) signify the objective and subjective positions in order to complement each other in the teaching-learning processes....

Introduction. The entry of American/Asian DENV-2 lineage II in the Loreto region of the Peruvian Amazon coincided with a sudden increase in dengue cases requiring hospitalization. However, official statistics reported few severe cases. It is postulated that there was an underreporting of severe cases in the official reports of the Ministry of Health. Objectives. To determine the frequency of patients with signs of severity among patients hospitalized for probable dengue fever during the 2011 outbreak at the Iquitos Hospital, Peru. Methods. A longitudinal study was carried out applying a daily checklist on the presence of signs of severity during hospital stay to a group of patients hospitalized in the dengue unit of the Iquitos hospital. Results. Of 178 patients evaluated, 66 (37%, CI: 29.9- 44.6%) presented some sign of severity, mostly due to shock (75,7%). This result contrasts with t...