2 resultados para Education - History - Brazil

em Instituto Politécnico de Bragança


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O objetivo deste estudo foi verificar como se constitui a formação tecnológica para o Secretariado no Brasil e em Portugal, identificando as características da educação formal e a oferta de cursos superiores para esse público, compondo uma análise comparativa do panorama dessa formação nos dois países. Com o embasamento em legislações educacionais e para o trabalho e, ainda, em referenciais sobre o ensino superior no âmbito brasileiro e internacional, a pesquisa se constitui como um estudo de caso, associado ao método comparativo. Os resultados apontam para a tendência da formação tecnológica para os secretários, em detrimento aos de longa duração, trazendo como desafios a ambos os países o acompanhamento dos debates e tendências para o ensino superior, a observação e articulação das demandas à preparação de novos profissionais e a identificação das influências nas expectativas e escolhas de carreira da população jovem.

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The particular characteristics of growth and development of mushrooms in nature result in the accumulation of a variety of secondary metabolites, several of them with biological activities. The genus Pleurotus is a cosmopolitan group of mushrooms with high nutritional value and therapeutic properties, besides a wide array of biotechnological and environmental applications. Scope and approach: The present report aims to provide a critical review on aspects related to chemical compounds isolated from the genus Pleurotus with possible biotechnological, nutritional and therapeutic uses. Investigations on the genus have immensely accelerated during the last ten years, so that only reports published after 2005 have been considered. Key findings and conclusions: The most important Pleurotus species cultivated in large scale are P. ostreatus and P. pulmonarius. However, more than 200 species have already been investigated to various degrees. Both basidiomata and mycelia of Pleurotus are a great renewable and easily accessible source of functional foods/nutraceuticals and pharmaceuticals with antioxidant, antimicrobial, anti-inflammatory, antitumor and immunomodulatory effects. A series of compounds have already been precisely defined including several polysaccharides, phenolics, terpenes and sterols. However, intensification of structure determination is highly desirable and demands considerable efforts. Further studies including clinical trials need to be carried out to ascertain the safety of these compounds as adequate alternatives to conventional drugs. Not less important is to extend the search for novel bioactives to less explored Pleurotus species.