Navegando por Autor "FERREIRA, Vivianne Cristinne Marinho Freitas"

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Acesso aberto (Open Access)
Atividade alelopática de substâncias químicas isoladas do Capim-Marandu e suas variações em função do pH
(2008) SANTOS, Lourivaldo da Silva; SANTOS, Josiane Cristina Lucas dos; SOUZA FILHO, Antonio Pedro da Silva; CORRÊA, Marivaldo José Costa; VEIGA, Thiago Andre Moura; FERREIRA, Vivianne Cristinne Marinho Freitas; FERREIRA, Isabel Cristina Serrão; GONÇALVES, Nelson Santos; SILVA, Carlos E. da; GUILHON, Giselle Maria Skelding Pinheiro
This work aimed to isolate, identify and determine the allelopathic activity of the chemical substances produced by Brachiaria brizantha cv. Marandu and to verify the effects of the pH in the solution on the activity of these compounds. The allelopathic activity was evaluated based on germination bioassays and radicle and hypocotyl growth using the species 'malícia' (Mimosa pudica) and 'mata-pasto' (Senna obtusifolia) as receptors. The effect of pH was analyzed in a range from 3.0 to 9.0. The pentacyclic triterpenes friedelin and epifriefelinol isolated from the shoots of B. brizantha showed a low inhibitory activity against seed germination and radicle and hypocotyl growth of the two receptor plants evaluated. The pentacyclic triterpenes friedelin and epifrifelinol presented differentiated behaviors in relation to the pH variation in the solution, with stronger inhibition activity against the weed 'mata-pasto'.
Acesso aberto (Open Access)
Avaliação escolar de alunos autistas: um estudo sobre a relação escola-família em uma instituição pública de ensino do município de Belém - Pará
(Universidade Federal do Pará, 2015-06-30) FERREIRA, Vivianne Cristinne Marinho Freitas; PAIXÃO, Carlos Jorge; http://lattes.cnpq.br/5926523492011056
This work have the objective was to analyze the evaluation process of autistic student learning, from the perspective of school-family relationship. To accomplish this, information was raised through interviews with four teachers and three guardians of students with autism in a public school of Belém do Pará. The data obtained through the interviews, along with the balance of scientific literature on evaluation in Brazil, constituted the material to be analyzed and interpreted. The results show that teachers carry out a formative evaluation, seeking evaluative strategies that enhance the perception of learning evolution of their students, using diverse instruments. However, the assessment of learning held at Blue school suffers loss primarily because of regular classroom teachers do not receive adequate training, it should be offered by SEMEC -PA, to work with this audience, which is contrary to the requirements of official documents. The mothers interviewed know little or nothing of the evaluation process to which your child is subjected. Mothers of autistic students and teachers reported perceive the progress in the development of their children in the social aspect of language, behavior and in some educational factors. As for the relationship between family and school, two of the three mothers interviewed include participation in school as an educational and political aspect, where their presence aids in child's learning process, either through information sharing about the child, either through struggle so that the rights of their child are guaranteed. However, the teachers reported that family involvement in school is mainly through the multifunction capabilities room, which is where they get their information about their students. The interviewees pointed out the need for continuing education addressing the autism theme for teachers to take ownership of this knowledge and thus help in their school practices. Teachers also suggest that we make a greater school partnership with the family to the student's learning is favored because this knowledge about the autistic student reality will help this professional, making act with more respect and responsibility.