Escola Mãe Hilda: um estudo sobre a pedagogia da (re)construção da identidade negra

RESUMO: Objetivo - apresentar o contributo da Escola Mãe Hilda para a afirmação da identidade afro-brasileira na população estudantil da Cidade do Salvador. Especificamente: a) conhecer os fundamentos pedagógicos-curricular da Escola Mãe Hilda; b) analisar os materiais didáticos utilizados pela Escola Mãe Hilda; c) apresentar as metodologias de trabalho da Escola Mãe Hilda. Metodologia - quanto ao percurso metodológico, em razão da questão básica desta dissertação, optou-se por realizar pesquisa qualitativa de natureza etnográfica, envolvendo uma abordagem empírica voltada para a abordagem de distúrbios identitários, em suas diversas dimensões na auto-estima de afro-descendentes. Foram estudados aspectos que envolvem o currículo, a sala de aula e atividades a que estão expostas as crianças da Escola Mãe Hilda. Resultados - examinando- se os conteúdos dos Cadernos de Educação do Ilê Aiyê como proposta pedagógica da Escola Mãe Hilda, observou- se que seus fudamentos dão ressignificação aos alunos, em termos de superação de distúrbios identitários, isto é , proporcionar o desenvolvimento e construção da identidade negra naqueles afro-descendentes, devido à valorização estética do universo cultural africano e afro-brasileiro, reconhecendo a África como uma das matrizes legítimas da cultura humana, em geral, e da brasileira, em particular. Conclusão- a pedagogia da (re) construção da identidade negra na Escola Mãe Hilda pode contribuir para a desconstrução dos distúrbios identitários; sendo assim, recomendada para escolas em Salvador-Bahia e em outras regiões do Brasil. ABSTRACT: Objective- study Escola Mãe Hilda (EMH - Mother Hilda School) contribution to the affirmation of an African-Brazilian identity in Bahia’s black student population. In particular: a) understand EMH’s pedagogical and curricula core; b) analyze teaching materials used at EMH; c) show EMH’s work methodology. Methodology- due to the very nature of this dissertation’s basic inquiry, ethnography in nature qualitative research targeted at identity disturbances in its various dimensions regarding African descendents self-esteem was performed. Aspects regarding EMH curriculum and classroom activities were studied. The choice of ethnography as an observation tool followed empirical analysis of whether Ilê Aiyê’s Educational Booklets as adopted by EMH aids students with identity disturbances and how it promotes the development of a black identity in those black descendants. Results- it has been observed that EMH utilizes methodological and pedagogical resources such as: story-telling, written reports, images, objects, dances, music, letters, myths, gestures, legends, craftsmanship, and clothing as vehicles to re-assign students self esteem, as well as, build their critical and self-aware knowledge of black descendants identity. Conclusion.- EMH pedagogical work, by encompassing various types of cultural and artistic expressions, as detailed in the aforementioned booklets, values African and Brazilian-African references. This aesthetic valuation therefore promotes an identity ressignification and the reintegration of the black descendent since it works within the symbolic and cultural universe of the African and African-Brazilian culture recognizing Africa as a legitimate matrix of human culture, in general, and of Brazilian in particular. Conclusively, EMH black identity (re)construction pedagogy can contribute to deconstruct identity disturbances; and as such, can be recommended to be adopted at other schools in Salvador, Bahia and other regions in Brazil.

Fracasso escolar em escolas públicas de Nossa senhora da Glória: análise das implicações a partir da relação Professor/Aluno

A Pesquisa apresentada nesta dissertação, intitulada “Fracasso Escolar em Escolas Públicas de Nossa Senhora da Glória: análise das implicações a partir da relação professor/aluno” foi desenvolvida com o objetivo de analisar alunos com dependência ou repetência em disciplinas do 6º ano do Ensino Fundamental, com o intuito de problematizar a percepção de professores e alunos, sujeitos da pesquisa. Desenvolveu-se uma pesquisa descritiva, fundada em estudo de caso de base qualiquantitativa, sobre uma amostra de 100 alunos do 6º ano do Ensino Fundamental e 20 professores que lecionam disciplinas do núcleo comum e disciplinas da parte diversificada. O instrumento usado para a coleta de dados foi o questionário. O estudo mostrou que um só professor ensina alunos do 2º ao 5º ano, em única sala de aula, no Ensino Fundamental. Esses alunos chegam ao 6º ano, trazendo deficiências como domínio na leitura, escrita, interpretação de texto e cálculo matemático, ocasionando o fracasso escolar. Com efeito, os professores avaliam que a metodologia, a falta de empenho de alguns, e a falta de compromisso da escola, são fatores determinantes do fracasso escolar.

Well-posed boundary value problems for integrable evolution equations on a finite interval

We consider boundary value problems posed on an interval [0,L] for an arbitrary linear evolution equation in one space dimension with spatial derivatives of order n. We characterize a class of such problems that admit a unique solution and are well posed in this sense. Such well-posed boundary value problems are obtained by prescribing N conditions at x=0 and n–N conditions at x=L, where N depends on n and on the sign of the highest-degree coefficient n in the dispersion relation of the equation. For the problems in this class, we give a spectrally decomposed integral representation of the solution; moreover, we show that these are the only problems that admit such a representation. These results can be used to establish the well-posedness, at least locally in time, of some physically relevant nonlinear evolution equations in one space dimension.

Spectral analysis of the elliptic sine-Gordon equation in the quarter plane

We study the elliptic sine-Gordon equation in the quarter plane using a spectral transform approach. We determine the Riemann-Hilbert problem associated with well-posed boundary value problems in this domain and use it to derive a formal representation of the solution. Our analysis is based on a generalization of the usual inverse scattering transform recently introduced by Fokas for studying linear elliptic problems.

Initial boundary value problems for the nonlinear Schrödinger equation

A new spectral method for solving initial boundary value problems for linear and integrable nonlinear partial differential equations in two independent variables is applied to the nonlinear Schrödinger equation and to its linearized version in the domain {x≥l(t), t≥0}. We show that there exist two cases: (a) if l″(t)<0, then the solution of the linear or nonlinear equations can be obtained by solving the respective scalar or matrix Riemann-Hilbert problem, which is defined on a time-dependent contour; (b) if l″(t)>0, then the Riemann-Hilbert problem is replaced by a respective scalar or matrix problem on a time-independent domain. In both cases, the solution is expressed in a spectrally decomposed form.

Entropic risk analysis by a high level decision support system (e-FDSS) for construction SMEs

The method of entropy has been useful in evaluating inconsistency on human judgments. This paper illustrates an entropy-based decision support system called e-FDSS to the solution of multicriterion risk and decision analysis in projects of construction small and medium enterprises (SMEs). It is optimized and solved by fuzzy logic, entropy, and genetic algorithms. A case study demonstrated the use of entropy in e-FDSS on analyzing multiple risk criteria in the predevelopment stage of SME projects. Survey data studying the degree of impact of selected project risk criteria on different projects were input into the system in order to evaluate the preidentified project risks in an impartial environment. Without taking into account the amount of uncertainty embedded in the evaluation process; the results showed that all decision vectors are indeed full of bias and the deviations of decisions are finally quantified providing a more objective decision and risk assessment profile to the stakeholders of projects in order to search and screen the most profitable projects.

A process for analysis of microarray comparative genomics hybridisation studies for bacterial genomes

Background: Microarray based comparative genomic hybridisation (CGH) experiments have been used to study numerous biological problems including understanding genome plasticity in pathogenic bacteria. Typically such experiments produce large data sets that are difficult for biologists to handle. Although there are some programmes available for interpretation of bacterial transcriptomics data and CGH microarray data for looking at genetic stability in oncogenes, there are none specifically to understand the mosaic nature of bacterial genomes. Consequently a bottle neck still persists in accurate processing and mathematical analysis of these data. To address this shortfall we have produced a simple and robust CGH microarray data analysis process that may be automated in the future to understand bacterial genomic diversity. Results: The process involves five steps: cleaning, normalisation, estimating gene presence and absence or divergence, validation, and analysis of data from test against three reference strains simultaneously. Each stage of the process is described and we have compared a number of methods available for characterising bacterial genomic diversity, for calculating the cut-off between gene presence and absence or divergence, and shown that a simple dynamic approach using a kernel density estimator performed better than both established, as well as a more sophisticated mixture modelling technique. We have also shown that current methods commonly used for CGH microarray analysis in tumour and cancer cell lines are not appropriate for analysing our data. Conclusion: After carrying out the analysis and validation for three sequenced Escherichia coli strains, CGH microarray data from 19 E. coli O157 pathogenic test strains were used to demonstrate the benefits of applying this simple and robust process to CGH microarray studies using bacterial genomes.

Understanding the transition to seizure by modeling the epileptiform activity of general anesthetic agents

A central difficulty in modeling epileptogenesis using biologically plausible computational and mathematical models is not the production of activity characteristic of a seizure, but rather producing it in response to specific and quantifiable physiologic change or pathologic abnormality. This is particularly problematic when it is considered that the pathophysiological genesis of most epilepsies is largely unknown. However, several volatile general anesthetic agents, whose principle targets of action are quantifiably well characterized, are also known to be proconvulsant. The authors describe recent approaches to theoretically describing the electroencephalographic effects of volatile general anesthetic agents that may be able to provide important insights into the physiologic mechanisms that underpin seizure initiation.

A statistical evaluation of the field emission for copper oxide nanostructures

A statistical data analysis methodology was developed to evaluate the field emission properties of many samples of copper oxide nanostructured field emitters. This analysis was largely done in terms of Seppen-Katamuki (SK) charts, field strength and emission current. Some physical and mathematical models were derived to describe the effect of small electric field perturbations in the Fowler-Nordheim (F-N) equation, and then to explain the trend of the data represented in the SK charts. The field enhancement factor and the emission area parameters showed to be very sensitive to variations in the electric field for most of the samples. We have found that the anode-cathode distance is critical in the field emission characterization of samples having a non-rigid nanostructure. (C) 2007 Elsevier B.V. All rights reserved.

Upper secondary school students' gendered conceptions about mathematics

This study explores Swedish Natural Science students' conceptions about gender and mathematics. I conducted and compared the results from two questionnaires. The first questionnaire revealed a view of rather traditional feminities and masulinities, a result that did not repeat itself in the second questionnaire. There was a discrepancy between the traits the students ascribed as gender different and the traits they ascribed to themselves.

A reason to believe : beliefs as an influence on students task solving

Upper secondary students’ task solving reasoning was analysed, with a focus on what grounds they had for different strategy choices and conclusions. Beliefs were identified and connected with the reasoning that took place. The results indicate that beliefs have an impact on the central decisions made during task solving. Three themes stand out: safety, expectation and motivation.

Assalto ao estado e ao mercado, neoliberalismo e teoria econômica

O Estado e o mercado são instituições complementares. O Estado é a instituição principal que coordena as sociedades modernas; é o sistema constitucional e a organização que o garante; é o principal instrumento através do qual as sociedades democráticas estão moldando o capitalismo de modo a alcançar seus próprios objetivos políticos. Os mercados são instituições baseadas na competição, regulada pelo Estado para que contribuam com a coordenação da economia. Enquanto o liberalismo emergiu no século 18 para combater o estado autocrático, desde os anos 1980 o neoliberalismo (uma distorção maior do liberalismo econômico) tornou-se dominante e montou um assalto ao estado em nome do mercado, mas eventualmente também atacou o mercado. A macroeconomia neoclássica e a teoria da escolha pública foram as meta-ideologias que deram a esse assalto um apelo ‘científico’ e matemático.