999 resultados para Descoberta do elétron


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In this paper we present a report of a project developed with young people who were in detention on the CASA Foundation, former FEBEM in Araraquara, in the period in which the activity occurred. Our goal with the project was twofold: that our presence at the Foundation supports the young people in that institution with leisure and social reintegration, and to enable students to make experience of new strategies for teaching undergraduate and citizenship training. The project developed there was entitled "The Art of Storytelling" and, and despite its catchy title, actually had a much less ambitious goal, which was not just enable artists to exercise the storytelling, but chiefly to raise awareness that our worldview and our inner lives are made up by micronarratives, which not only place us in the universe into which we belong and also creates our own identity. Having this perspective as a starting point and following the theoretical assumptions of Paulo Freire, for whom the learning process is interactive and based on the exchange of experiences, we held five meetings and the experience was enriching, both for students and for the Foundation´s youngs that took part in this activity.

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Innovation is widely recognized as important. In addition, in this context, innovation networks have gained importance in academic studies, since an organization alone, does not always have access to all necessary resources. Gobbo Junior and Olsson (2010) proposed a model of network innovation whereby the transformation networks would be the linking structures between exploration and exploitation networks. In this context, this paper presents two case studies of innovation networks, aiming to increase the understanding on transformation networks. The objective was to understand how they interconnect exploration and exploitation networks; the main actors present in this interface; and to evaluate whether these actors can act as agents, to accelerate the innovation process. It was possible to verify how the transformation networks interconnect exploration and exploitation, and identify the practices and their main actors.

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Erythrina verna is a medicinal plant used to calm agitation popularly known as mulungu. We purchased the barks of E. verna from a commercial producer and analyzed the alkaloid fraction of the bark by CG-MS and HRESI-MS. Five erythrinian alkaloids were identified: erysotrine, erythratidine, erythratidinone, epimer, and 11-hydroxieritratidinone. Here we report the compound 11-hydroxieritratidinone for the first time as a natural product.

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Erythrina verna is a medicinal plant used to calm agitation popularly known as mulungu. We purchased the barks of E. verna from a commercial producer and analyzed the alkaloid fraction of the bark by CG-MS and HRESI-MS. Five erythrinian alkaloids were identified: erysotrine, erythratidine, erythratidinone, epimer, and 11-hydroxieritratidinone. Here we report the compound 11-hydroxieritratidinone for the first time as a natural product.

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