Ovarian Torsion after Hysterectomy: Case Report and Concise Review of the Reported Cases.

Ovarian torsion after hysterectomy is a rare event. The diagnosis of ovarian torsion is challenging because symptoms are nonspecific. We present a case of ovarian torsion 2 years after laparoscopic hysterectomy (LH). Furthermore, we performed a literature review about ovarian torsion after hysterectomy. This case shows that, in cases of acute onset pelvic pain in patients with history of hysterectomy, the adnexal torsion must be kept in mind in the differential diagnosis, especially in those women who had undergone LH.

Educando en un ambiente enriquecido: porque todos estamos conectados / Educating in an enriched environment: because we are all connected

El objetivo de esta revisión es dar a conocer las diferentes vertientes que sustentan el proceso del aprendizaje en base a un concepto que ha alcanzado una gran importancia en los últimos años, el Ambiente Enriquecido (AE). Un término que ha sido emanado desde la biología, con diversos estudios de laboratorio realizados por científicos de renombre mundial y que, progresivamente ha ido incorporándose a disciplinas como la Psicología y la Pedagogía. En este artículo proponemos la descripción del impacto de este concepto en el proceso de aprendizaje experimentado por los seres humanos y su abordaje desde una perspectiva multidisciplinaria. Comenzamos por describir las bases neurofisiológicas del aprendizaje, con los fundamentos de la teoría neuronal como principal protagonista, pasando por la importancia de la Plasticidad Sináptica (PS) en el proceso de aprendizaje, el fenómeno de la Potenciación a Largo Plazo (PLP), como proceso generador de redes neuronales efectivas y sólidas. Posteriormente abordamos la génesis del Ambiente Enriquecido, con su origen en los experimentos con ratones de laboratorio, para posteriormente describir los conceptos y términos que han emanado del mismo que han sido aplicables a la Psicología Educacional tales como el Ambiente Desafiante, los instrumentos necesarios para su implementación y también el importante rol de las emociones en el proceso de aprendizaje de los sujetos. Finalmente, describimos el rol de la Pedagogía en la aplicación de actividades efectivas que conduzcan a un aprendizaje significativo en base al Ambiente Enriquecido.

The aim of this review is to present different strands that sustain the learning process based on a concept that has reached a major importance in recent years, the Enriched Environment (EE). A term that has been emerged from biology, with various laboratory studies conducted by world-renowned scientists and that has progressively been incorporated into disciplines such as Psychology and Education. In this article, we propose the description of the impact of this concept on the learning process experienced by human beings and its approach from a multidisciplinary perspective. We begin by describing the neurophysiological bases of learning, with the fundamentals of neuronal theory as the main protagonist, passing through the importance of Synaptic Plasticity (SP) in the learning process, the phenomenon of Long Term Potentiation (LTP), as a generating process of effective and solid neural networks. Subsequently, we covered the genesis of the Enriched Environment, with its origin in the experiments with laboratory mice, to later describe the concepts and terms that have emanated from it and have been applicable to Educational Psychology, such as Challenging Environment, the necessary instruments for its implementation and the important role of emotions in the subjects' learning process. Finally, we describe the role of Education in the implementation of effective activities that lead to meaningful learning based on the Enriched Environment.

Electrophoretic analysis of ITS from Piscirickettsia salmonis Chilean isolates.

Piscirickettsia salmonis is the most important pathogen in salmonid mariculture in Chile. Since it was reported numerous piscirickettsiosis outbreaks have occurred differing in virulence and mortality. Genetic variability of P. salmonis isolates has been suggested as one factor to explain this. However until now isolates obtained from outbreaks have not been analyzed. Knowledge of genetic variability of P. salmonis is very limited and also a useful screening method for genetic variations in isolates without sequencing is not available. Here we report an electrophoretic analysis of internal transcribed spacer region (ITS) of eleven P. salmonis isolates obtained from different salmon species and places in southern Chile. When PCR products were submitted to polyacrylamide gel electrophoresis (PAGE) a characteristic electrophoretic pattern was observed, distinguishable from ITS of other bacteria, including fish pathogens. Even though this pattern is conserved in all isolates, a difference in ITS electrophoretic mobility was observed, determining clearly two groups: ITS with higher or with lower electrophoretic mobility, including LF-89 and EM-90 isolates, respectively. A higher ITS sequence homology inside each group was shown by heteroduplex mobility assay (HMA). Our results show that genetic variability between Chilean P. salmonis isolates allows the differentiation of two groups with similar behavior observed previously when six P. salmonis isolates from three geographic origins were analyzed by 16S, 23S and ITS sequencing. PAGE analysis of ITS and HMA could be a basis to develop an assay for screening genetic variability between P. salmonis isolates.

Prisioneiras políticas no Chile: projetos e histórias vividas

Esta pesquisa é um estudo sobre as mulheres chilenas ex-prisioneiras políticas no Chile, que desenvolveram um projeto de vida relacionado com os movimentos e partidos políticos de esquerda durante a luta contra a ditadura militar (1973-1990). A análise da vivência destas mulheres situa-se nos anos sessenta e setenta, dentro do contexto histórico da América Latina. O estudo trabalha a memória e o projeto de vida político que assumiram estas mulheres que foram detidas, torturadas física ou/e psicologicamente e que permaneceram na cadeia durante vários anos. Por meio da história de vida se pesquisou o processo de construção social dos indivíduos como mulheres, inseridas em um projeto de vida baseado na tentativa de transformação social através da insurgência armada. A análise se desenvolve especialmente na fase da estada na prisão e como o projeto supracitado se expressa na reinserção social após a prisão (AU)