Collaborative E-learning Methodologies: an Experience of Active Knowledge in ICT Classrooms

In the present study we highlight a specific environment that makes use of collaborative technological tools, like wikis and forums within an e-learning platform. Both of these approaches convey a lot of responsibility from the teacher to the students and the hoping, as backed up by the literature, is to promote deeper learning and reasoning skills at a higher level. The general goal of this paper is to contribute for the theoretical discussion on how active and collaborative experiences in ICT classrooms play a role on the construction of knowledge in HEIs. Based on the pointed outlines, we intend to: (1) understand how collaborative e-learning environments get students actively involved in the learning process;(2) perspective the role of collaborative tools at the level of group work and (3) find out how students assess their performance within a working group. Data was collected through questionnaires available on the e-learning platform Moodle. Descriptive statistical techniques were used to analyze quantitative data. Within the research questions proposed, the study, points towards some understanding of how a collaborative learning environment seems to get students actively involved in the learning process mainly if the tasks to be perform have an empirical component. The study also has shown that students seem to identify themselves with the need to be involved in simulations of their future professional activity, as well as with the need to regulate their own learning and to promote discussion not only between peers but also with the teacher

Constructing knowledge: an experience of active and collaborative learning in an ICT classroom

This paper reports on the impact of the implementation of active and collaborative practices in ICT (information and communication technologies) classrooms. Both of these approaches convey a lot of responsibility from the teacher to the students and the hoping, as backed up by the literature, is to promote deeper learning and reasoning skills at a higher level. The question is: how do you do all that? This research describes a specific environment that makes use of collaborative tools, like wikis and forums within an e-learning platform and of specific CRM (customer relationship management) software. In order to analyze how this learning environment gets learners actively involved in learning and working together in productive ways, students were surveyed by responding to questionnaires. Several cause-effect relations underlying the teaching-learning methodology and the students’ performance are discussed

New insights into the biomechanics of Legg-Calvé-Perthes’ disease: The role of epiphyseal skeletal immaturity in vascular obstruction

ObjectivesLegg–Calvé–Perthes’ disease (LCP) is an idiopathic osteonecrosis of the femoral head that is most common in children between four and eight years old. The factors that lead to the onset of LCP are still unclear; however, it is believed that interruption of the blood supply to the developing epiphysis is an important factor in the development of the condition.MethodsFinite element analysis modelling of the blood supply to the juvenile epiphysis was investigated to understand under which circumstances the blood vessels supplying the femoral epiphysis could become obstructed. The identification of these conditions is likely to be important in understanding the biomechanics of LCP.ResultsThe results support the hypothesis that vascular obstruction to the epiphysis may arise when there is delayed ossification and when articular cartilage has reduced stiffness under compression.ConclusionThe findings support the theory of vascular occlusion as being important in the pathophysiology of Perthes disease

Encounters and disencounters in the transport system on the South Bank of the Tagus Estuary: on the difficulties of establishing intermodal Transport in a region

Using a concept that has only recently entered the dictionar- ies while writing transport history has its manifest risks. Nevertheless the aims of this article is to emphasize that the decisions taken or the impossibility of implementing them at various stages in the past, have an influence on the facility or the difficulty in turning the concept into reality in the present. The case study is the relation between urban expansion and the growth of the transport capacity since 1850 in the south bank of the Tagus, in face of Lisbon. Since that time steamboats linked Cacilhas to Lisbon but the planned railroads were never installed in this district. Thus urban growth was related to bus connections and, since the sixties to the use of private motorcars. Intermodal stations imagined at the end of the nineteenth century could only be a reality after 1999. The train was that year finally installed in the bridge but it could no long shape the urban form

Lisbon and its port: urban planning and surveillance expectations and results

The rapid urban growth had a strong impact on the living conditions of the inhabitants of the cities. Port Cities experienced significant urban growth in the nineteenth century and early twentieth century. Trade growth and technological changes in ships led to the construction of new port facilities that completely transformed the landscape of port cities. Portuguese governments hoped that the modernization of the port and the establishment of railways would enable transformation of Castile into a hinterland of the Lisbon port. Emerging problems in the early stages of this process were related to hygiene, traffic, safety and the urban image of the city. Due to their relations with the outside world, the impact of migration and the existence of a fluid labour population, port cities sometimes had the image of being dangerous and unsafe havens. It was difficult to survey the flows of population and to control for goods, people and diseases. The aims of this article are to assess the way in which Lisbon and its port followed this international path and to highlight why its actualization was far behind the authorities’ expectations.info:eu-repo/semantics/acceptedVersio

A criação em sistema semi-intensivo e o manejo sustentável de capivaras na natureza.

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Extensões de um anel. Corpo de quocientes Q

O presente artigo faz parte de um dos temas discutidos no concurso de provas públicas para Prof essores-Adjuntos do Ensino Superior Politécnico, realizado em Dezembro de 1994. Após a introdução de alguns conceitos básicos, provam-se dois resultados sobre extensões de um anel. No primeiro, mostra-se que a partir de um anel sem identidade é possível construir um anel com identidade que contem um subanel isomorfo ao primeiro. No segundo resultado, mostra-se que a partir de qualquer domínio de integridade é possível construir um corpo que contem uma cópia isomorfa ao domínio inicia