Calderón de la Barca y la pintura virreinal andina

Tomo II ; 147-16

El hermano Bernardo Bitti - Escultor

Tomo II ; págs. 411-42

Desarrollo conceptual del sistema nervioso en niños de 5 a 14 años : modelos mentales

Pretende describir la genesis del sistema nervioso y la evolución de los concimientos de los estudiantes relativos al sistema nervioso humano. Estudiantes desde preescolar hasta octavo de EGB. Estudia si las ideas sobre el sistema nervioso que posee cada sujeto se pueden interpretar desde la perspectiva de los modelos mentales. La importancia de esta interpretación radica en la escasez de estudios que aborden la dimensión interpretativa desde la coherencia interna del pensamiento de los sujetos. Los instrumentos básicos de recogida de datos son las entrevistas sobre situaciones y en trevistas sobre ejemplos, junto a los dibujos realizados por los estudiantes. Para el análisis cualitativo de los conocimientos se utiliza el método de análisis conocido como redes sistémicas. Los resultados del trabajo describen la evolución de los principales conceptos sobre el sistema nervioso en la muestra y la evolución de los modelos mentales de los sujetos.ES

Bacteriophages as fecal pollution indicators

Bacteriophages are promising tools for the detection of fecal pollution in different environments, and particularly for viral pathogen risk assessment. Having similar morphological and biological characteristics, bacteriophages mimic the fate and transport of enteric viruses. Enteric bacteriophages, especially phages infecting Escherichia coli (coliphages), have been proposed as alternatives or complements to fecal indicator bacteria. Here, we provide a general overview of the potential use of enteric bacteriophages as fecal and viral indicators in different environments, as well as the available methods for their detection and enumeration, and the regulations for their application

Minding the gap between secondary school and university

The renewal of engineering education requires an education that is more affected by students' circumstances which, if known, will help to guide them into the future. It is about channelling the students towards learning, taking into account the factors related to the acquisition of knowledge and how they can share this knowledge with the teachers. The specific aim of the current study was to examine what it means for students to transition from secondary school to university and introduce changes to reduce the failures it generates. The causes of low grades in the initial phase of university are analysed; subsequently some remedies are included. First, to gather information, student surveys and interview activities, led by an expert, were conducted. Subsequently, compensatory actions were organized by experts, for students and teachers. The surveys were designed to provide a self-assessment of new students regarding dedication and performance, and were given to those who failed the first important exam, capturing how they experienced university entrance and their first failure. They point to some personal causes of low performance: time organization deficiencies, impediments to devoting themselves to continuous study, and difficulties to adapt. Half believe their dedication merits better learnings and marks, and stress the difficulties associated with an insufficient level of secondary education and with the types of exams. This study, encompassed within the framework of the activities dedicated to educational improvement at UPC, highlights the need to implement guidance and accompaniment actions devoted to first-year students