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Resumo: O presente trabalho objetiva investigar a trajetória intelectual de Francisco Ribeiro de Azevedo Macedo (1872-1955), advogado, professor e político paranaense. Defendemos a tese de que Macedo coordenou a iniciativa de sintonizar a legislação da educação paranaense aos princípios da escola ativa, do cooperativismo e do pensamento utilitarista. Defendeu, também, no seu grupo de sociabilidade a promoção da mulher no espaço público. Contudo, essas ideias, claramente sintonizadas com tendências inovadoras e progressistas para o período, foram concebidas e implementadas a partir de discursos e de práticas autoritárias que entendiam que a modernização da sociedade dependia de coerção e do controle daqueles que seriam pretensamente os principais protagonistas e interessados nas reformas da educação, ou seja, os alunos, os seus familiar...
Submarine mud volcanism is an important pathway for transfer of deep-sourced fluids enriched in hydrocarbons and other elements into the ocean. Mud volcanoes (MVs) occur in abundance on all oceanic plate margins, so fluxes of methane (CH4) and other chemical constituents from mud volcanism are likely to be significant for the oceanic budgets of some elements. Here, I present a detailed study of the spatial and temporal variation in fluid and chemical fluxes and mud flow activity at the Carlos Ribeiro and the Darwin MVs in the Gulf of Cadiz. Analyses of the chemical composition of pore fluids, sediments and authigenic carbonates are combined with a 1-D transport-reaction pore fluid model. Pore fluids from both MVs contain high concentrations of hydrocarbons (up to 16 mM), while pore fluids from Carlos Ribeiro MV (CRMV) are also enriched...
Submarine mud volcanoes (MVs) are dynamic features that episodically expel gas-charged fluids and mud onto the seafloor, transferring various chemical constituents into the overlying water column. The temporal variability in MV activity is, however, poorly understood, so their importance as a source of methane (CH4) and higher hydrocarbons for the oceanic carbon budget, although thought to be significant, cannot be properly constrained. In this study, the history of fluid and gas seepage at the Carlos Ribeiro MV (Gulf of Cadiz) is assessed via geochemical analyses and transport-reaction modelling of pore fluids and barium (Ba) rich layers (Ba fronts) in sediment cores, recovered along a transect from the eye to the periphery of the MV. X-ray fluorescence data reveal that Ba fronts are absent at the eye, while a single front (with up to...
Submarine mud volcanoes (MVs) are dynamic features that episodically expel gas-charged fluids and mud onto the seafloor, transferring various chemical constituents into the overlying water column. The temporal variability in MV activity is, however, poorly understood, so their importance as a source of methane (CH4) and higher hydrocarbons for the oceanic carbon budget, although thought to be significant, cannot be properly constrained. In this study, the history of fluid and gas seepage at the Carlos Ribeiro MV (Gulf of Cadiz) is assessed via geochemical analyses and transport-reaction modelling of pore fluids and barium (Ba) rich layers (Ba fronts) in sediment cores, recovered along a transect from the eye to the periphery of the MV. X-ray fluorescence data reveal that Ba fronts are absent at the eye, while a single front (with up to...
Tratamos do direito à inclusão dos alunos com Necessidades Educacionais Especiais na Escola Deputado Raimundo Ribeiro de Souza, no município de Jacundá – Pará partindo da premissa de que todas as crianças podem aprender e fazer parte da vida escolar e comunitária no sentido de garantir seu acesso e permanência na escola. Enfatiza-se que a temática é relevante e traz contributos, tanto no aspecto científico, quanto no social e cultural, pois permite que se tenha oportunidade de, além de adquirir-se autonomia científica de investigador, poder gerenciar o processo de formação e enriquecimento pessoal e cultural dos portadores de necessidades especiais. Para tanto, utiliza-se uma abordagem qualitativa apoiada na pesquisa bibliográfica e de campo através dos instrumentos questionário, entrevistas e observação direta que nos possibilitou per...
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