Gold nanoelectrode ensembles for direct trace electroanalysis of iodide

A procedure for the standardization of ensembles of gold nanodisk electrodes (NEE) of 30 nm diameter is presented, which is based on the analytical comparison between experimental cyclic voltammograms (CV) obtained at the NEEs in diluted solutions of redox probes and CV patterns obtained by digital simulation. Possible origins of defects sometimes found in NEEs are discussed. Selected NEEs are then employed for the study of the electrochemical oxidation of iodide in acidic solutions. CV patterns display typical quasi-reversible behavior which involves associated chemical reactions between adsorbed and solution species. The main CV characteristics at the NEE compare with those observed at millimeter sized gold disk electrodes (Au-macro), apart a slight shift in E1/2 values and slightly higher peak to peak separation at the NEE. The detection limit (DC) at NEEs is 0.3 mu M, which is more than one order of magnitude lower than DL at the Au-macro (4 RM). The mechanism of the electrochemical oxidation of iodide at NEEs is discussed. Finally, NEEs are applied to the direct determination of iodide at micromolar concentration levels in real samples, namely in some ophthalmic drugs and iodized table salt. (c) 2006 Elsevier B.V. All rights reserved.

A place preference test in the fish Nile tilapia

The Nile tilapia fish (Oreochromis niloticus) has a high potential to be used as a model in neuroscience studies. In the present study, the preference of the Nile tilapia between a gravel-enriched (GEE), a shelter-enriched (SEE) or a non-enriched (NEE) environment was determined, for developing a place preference model. Nile tilapia had an initial preference for GEE, but after 1 day of observation, the fish stabilized their frequency of visits among compartments. Hence, any stimulus motivating tilapia increase in compartment visiting indicates a positively reinforcing effect. This feature is very useful for the development of new behavioural paradigms for fish in tests using environmental discrimination, such as the conditioning place preference test. © 2006 Elsevier GmbH. All rights reserved.

Caracterização dos alunos do ensino fundamental municipal de Araraquara encaminhados ao programa de educação especial identificados com necessidades educacionais especiais

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Desempenho funcional nas atividades de rotina escolar de alunos com necessidades educacionais especiais na persectiva do professor

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Escolarização inclusiva de alunos com necessidades educacionais especiais: um estudo de caso de um município paulista

Pós-graduação em Educação - FFC

Um estudo de caso sobre a organização escolar e as relações interpessoais dentro do âmbito educacional

Violence and school organization are always current issues. And to investigate these two issues, the present study was carried within a public school in the city for being considered a model of educative institution. The analysis focused on finding out why some institutions are considered good and others not and also to explain how these good relations within the school studied. Therefore, we first observed the school in its stages: entry and exit of students, breaks and classroom activities. Then consult the official documents, such as the Management Plan, Rules, Standards, among others. And finally we interviewed staff, targeting participants in the educational process (principal, teacher, staff, students). Facing this data we verified that a good relationship is needed on the beliefs and the search for a favorable environment is the aim for everyone, especially regarding to teaching-learning processes of a student, that is: teamwork. And as every institution has its flaws, we nee greater participation, especially of what we call school community (parents and relatives).

A empatia, a sensibilização e a formação de professores do ensino público para uma inclusão efetiva de alunos com necessidades educacionais especiais

Special education and inclusion of students with Special Educational Needs (SEN) in regular classrooms of public schools has being widely discussed in academic and political areas. From Salamanca Declaration signed in 1994, which established that the education of people with special needs should be guaranteed by public system, being offered within regular classrooms said. Along the inclusion process, has been observed an increasingly difficult for teachers to work with these special students. This difficulty comes from an incomplete or inadequate formation, resulting in an education that is not always inclusive. The present work aims to investigate what are the motivational factors that lead teachers, working in public schools, to seek continuing courses of formation in specialized educational services, and what are the possible impediments that eschew them from seeking such courses. Data were collected through questionnaires given to elementary school teachers, from public schools in the city of Rio Claro- SP. With their answer, it could be identified what are the motivational factors of the quest for continuing formation, as well as facts that obstruct this specialization. It could be observed that there is a need for constant training of the education professionals, for them to be able to appropriate of the inclusion as a pedagogical approach, not just a law and far from reality

Considerações sobre a inclusão escolar de alunos com necessidades educacionais especiais na educação de jovens e adultos

This work carried through an exploratory study with nine students with Special Educational Needs (SEN) that had passed for the scholarship in last the ten years and who were registered in the modality of Education for Young people and Adults (EYA). The objective was to identify the effect of the inclusive education, with regard to access and equity in education, in relation to the acquisition of reading, writing and calculation, having as reference the initial cycle of literacy. The research was developed with students aged between 16 and 46 years, in a city in interior of São Paulo (Brazil). About the participants, three were attended the Term I: (1ª and 2ª series), three the Term II (3ª e 4ª series) and three the Term III: (5ª series). An Instrument of Evaluation was elaborated, with specific questions of Portuguese language and mathematics. The study found that in the last ten years, of the investigated group, few students had frequented regular school and those who attended were for a short period of time. The great majority studied, in recent years, only in special school, against the current legislation of inclusive education policy in the Brazilian educational system. Although the students receive the classification of students with SEN, the scholar system demonstrate difficulties in taking care of these students in theirs specific demands of learning and remain, still, the necessity of adequate training of teachers to work in the inclusive schools and to attend the diversity present in the classroom.

Análise das diretrizes curriculares dos cursos de licenciatura em relação à formação de professores para inclusão de alunos com necessidades especiais

As políticas educacionais inclusivas, difundidas a partir dos anos 1990, vêm favorecendo o aumento do número de alunos com necessidades educacionais especiais (NEE) matriculados em classe comum, no entanto, os professores que os recebem, em sua maioria, estão despreparados para atendê-los. Tomando como base essa situação, o presente estudo teve o objetivo de analisar as orientações contidas nas diretrizes curriculares dos cursos de licenciatura em relação à preparação dos futuros professores para inclusão de alunos com NEE. Para tanto, realizou-se uma pesquisa documental. Foram selecionados recortes temáticos nos textos das referidas diretrizes de maneira a identificar os extratos que contemplavam recomendações ou comentários referentes ao processo de formação dos professores em relação à inclusão de alunos com NEE. Pelos resultados obtidos nos documentos analisados, constata-se, com raras exceções, uma significativa carência de orientações claras e amplas a respeito do tema em questão. Portanto, considera-se que as referidas diretrizes precisam ser aprimoradas em relação à questão em pauta. Com base nos conhecimentos desenvolvidos na área, sugere-se que as mesmas orientem a inserção de pelo menos uma disciplina sobre o tema inclusão de alunos com NEE; a inserção de conteúdos afins nas demais disciplinas dos cursos de licenciatura; a disponibilização de estágios em salas de aulas inclusivas, bem como a indicação dos conteúdos a serem trabalhados. Avalia-se que a efetividade do processo de inclusão dos alunos com NEE assenta-se na articulação entre as políticas educacionais e as políticas de formação dos professores.

Inclusão escolar na percepção de professores do município de Dois Córregos, São Paulo

This paper aims to make a survey about the inclusion of children in need of special care in all schools and day nurseries (publics and privates) in ?Dois Córregos? city, in São Paulo. We interviewed 144 teachers and 14 school principals in 14 educational establishments ? 5 private schools, 5 state-owned schools, 2 municipal schools, 1 municipal nursery and 1 philanthropic nursery. The research aimed to investigate possible prejudices against the children in need of special care; verify if the schools have adequate infrastructure to receive the students in need of special care; and verify if the professionals who work in the schools are receiving (or received) specific training to work on this inclusion process. The results indicated that teachers who don?t work with children in need of special care are very insecure in receiving them. It?s evident that there are a lot of doubts and uncertainties about the inclusion system. In general, schools don?t have adequate infrastructure and most of the time the included students are those who have internal deficits, which are not evident.