This paper proposes a model to identify education and/or training emphasis for 3D Virtual Environments. Through a survey of such applications specific characteristics of each emphasis were identified. Although few authors highlight the distinction between Virtual Environments for Education and Training, the correct definition of each of these types can facilitate the attainment of educational goals for the niche one wants to accomplish. In this study a special focus is given to the training applications, with the proposal of a standardization of the "training modes" based on a functional conceptual framework. At the end of the article a case study of a desktop Virtual Reality (VR) system for training will be presented. This system includes a maintenance sub-system in a Hydroelectric Energy Unit, using a "learn by doing" approach
O sarcoma de Ewing é um tipo de tumor ósseo, de comportamento agressivo, que acomete principalmente indivíduos abaixo dos 30 anos e com predomínio no sexo masculino. A família de tumores de Ewing compreende um espectro de neoplasias de células neuroectodérmicas primitivas as quais são células embrionárias que migram da crista neural. Neste relato apresenta-se paciente do sexo masculino, 19 anos, admitido na emergência com quadro de lombalgia, fraqueza de membros inferiores, dificuldade de urinar e fratura de fêmur direito há um ano. Solicitada ressonância magnética da pelve e coluna lombosacra que evidenciaram lesão expansiva pré-sacral e lesões extramedulares e intradurais. Paciente submetido a exame anatomopatológico que evidenciou sarcoma de Ewing/Tumor Neuroectodérmico Primitivo. Realizado tratamento cirúrgico para descompressão medular e posterior radioterapia e quimioterapia
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