2 resultados para Sorting Nexin-1
em Repositório Científico do Instituto Politécnico de Lisboa - Portugal
Resumo:
O objetivo da pesquisa pretende verificar se há um contributo da formação em mediação no desenvolvimento de conhecimentos nessa área e na mudança de atitude nos Assistentes Operacionais (AO), face à resolução de conflitos entre alunos. Os recreios das escolas do 1.º Ciclo do Ensino Básico (1.ºCEB) são os locais onde ocorre a quase totalidade dos conflitos entre alunos (Fernández, 2007; Oliveira, 2007; Rosa, 2007). Esses recreios são supervisionados pelos AO, os quais devem ter formação específica em estratégias de resolução de conflitos. A mediação é apontada como a melhor estratégia na abordagem dos conflitos escolares, perspetivando melhoria na convivência escolar e na construção de um clima escolar positivo, propício à eficácia da educação. A estratégia de pesquisa baseia-se num estudo de intervenção com uma amostra de conveniência, simultaneamente qualitativo e quantitativo. Os dados foram recolhidos por questionário, por levantamento dos conhecimentos anteriores e posteriores à formação e por entrevistas aos participantes. No estudo participaram sete AO. Os resultados revelaram que os AO desenvolveram conhecimentos sobre mediação e percecionaram em si mesmos mudanças de atitude face à resolução de conflitos entre alunos. Os resultados ainda revelaram que os AO se sentem desvalorizados no meio escolar, mas motivados na interação com os alunos. Concluiu-se que a formação em mediação de conflitos oferece um contributo significativo no desenvolvimento de conhecimentos sobre mediação e facilita uma mudança de atitude na resolução de conflitos entre alunos. Concluiu-se também que os AO estão conscientes do seu papel educativo e que têm sugestões pertinentes de melhoria.ABSTRAT This research intends to evaluate whether training in mediation contributes for the development of knowledge in this area, and for changes in attitude, when Operational Assistants (OAs) sort out conflicts between students. The playgrounds of the schools of the 1st Cycle of Basic Education (1stCEB) are the places where almost the conflicts between students happen. These playgrounds are supervised by OAs, which must have specific training in conflict resolution strategies. Mediation is considered the best strategy for addressing students’ conflicts in order to improve school coexistence and positive climate, conducive to the effectiveness of education. The research strategy is based on an intervention study with a convenience sample, both qualitative and quantitative. Data was collected by questionnaire, assessment of knowledge before and after training and final interviews. The participants were 7 OAs. The results revealed the development of knowledge about mediation, who perceives themselves as changing attitudes towards conflicts resolution between students. The results also revealed that the OAs feel devalued, but motivated when interacting to students. Training in conflict mediation offers a significant contribution in the development of knowledge about mediation and facilitates a change of attitude in sorting out conflicts between students. It was also concluded that the OAs are aware of their educational role and have relevant suggestions for improvement.
Resumo:
Organic waste is a rich substrate for microbial growth, and because of that, workers from waste industry are at higher risk of exposure to bioaerosols. This study aimed to assess fungal contamination in two plants handling solid waste management. Air samples from the two plants were collected through an impaction method. Surface samples were also collected by swabbing surfaces of the same indoor sites. All collected samples were incubated at 27◦C for 5 to 7 d. After lab processing and incubation of collected samples, quantitative and qualitative results were obtained with identification of the isolated fungal species. Air samples were also subjected to molecular methods by real-time polymerase chain reaction (RT PCR) using an impinger method to measure DNA of Aspergillus flavus complex and Stachybotrys chartarum. Assessment of particulate matter (PM) was also conducted with portable direct-reading equipment. Particles concentration measurement was performed at five different sizes (PM0.5; PM1; PM2.5; PM5; PM10). With respect to the waste sorting plant, three species more frequently isolated in air and surfaces were A. niger (73.9%; 66.1%), A. fumigatus (16%; 13.8%), and A. flavus (8.7%; 14.2%). In the incineration plant, the most prevalent species detected in air samples were Penicillium sp. (62.9%), A. fumigatus (18%), and A. flavus (6%), while the most frequently isolated in surface samples were Penicillium sp. (57.5%), A. fumigatus (22.3%) and A. niger (12.8%). Stachybotrys chartarum and other toxinogenic strains from A. flavus complex were not detected. The most common PM sizes obtained were the PM10 and PM5 (inhalable fraction). Since waste is the main internal fungal source in the analyzed settings, preventive and protective measures need to be maintained to avoid worker exposure to fungi and their metabolites.