1000 resultados para filme de mercúrio
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Worldwide environmental degradation is an undesirable byproduct resulting from the increasing demand for natural resources. Water sources are suffering intense contamination since they usually receive a huge amount of domestic and industrial effluents - which are mostly wasted without proper treatment - inserting a large number of pollutants in the environment, heavy metals included. Mercury holds great toxicological importance because, under some physicochemical conditions in a water environment, Hg (II) ion turns into methylated compounds stemming from this element, such as methylmercury CH3Hg, which is highly toxic for the aquatic community in which bioaccumulation occurs. Nowadays passive sampling techniques are being developed to enable the analytical procedures which are applied in environmental monitoring. Diffusive gradients in thin-films technique (DGT) has been proven an interesting tool for the determination of labile metal species due to its in situ application. The DGT technique consists of a piston-like device on which the following series of agents is disposed: a binding agent (conventionally Chelex 100 resin), a diffusive agent, usually a polyacrylamide gel, and a membrane filter. Nevertheless, the agents conventinally used for this technique don't usually show satisfactory results in mercury sampling. The main goal of this study was to evaluate the phosphate-treated cellulose membrane (Whatman P 81), an alternative material, as binding agent in the DGT to determine labile mercury fractions in aquatic systems. In this context, we conducted a study of the behavior of this material in relation with system variables, pH and ionic strength. Afterwards we performed immersions of the DGT devices in real and enriched samples and in situ aiming the determination of mercury
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Pós-graduação em Educação - IBRC
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To verify the levels of concentration of some heavy metals in fishes from Sorocaba river (São Paulo, Brazil) and evaluate if this contamination offers health risks to the fishermen, 63 samples of fishes collected from four points along the river were studied for cadmium, lead, chromium, nickel and mercury, with emphasis in this last, since it is the most toxic and most probable as a fish contaminant. Analyzing muscle samples by cold vapor atomic absorption spectrometry it was shown that the fishes are not contaminated. None of the five metals studied were present in prohibitive level and the fishes could be judged secure for human consume. It was also analyzed data from four years of cadmium, lead, chromium, nickel and mercury monitoring made by CETESB, from 1997 to 2000, in water from the main rivers of the State of São Paulo. The study pointed out that the majority of the monitored rivers still present contamination by those metals in a level that requires an improvement of the pollution control actions.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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The award-winning and controversial movie by Pedro Almodóvar “The skin I live” (2011) is an adaptation of Mygale’s novel (1984), the French writer Thierry Jonquet (1954-2009), translated into Portuguese in 2005 as Tarântula. It is a horror story, full of suspense, in which a renowned surgeon, Robert Ledgard, played by Antonio Banderas, switches, without any scruples, the sex of the young Vincent. What it shown to the viewer since the first images of the movie is, therefore, Vicente/Vera in her new and perfect female body. Flashbacks clarify during the movie the events that culminated in the opening scene that is presented to us, surprising us and, of course, shocking us. References to myths and symbols can be noticed in the movie. They bring with them, to be recognized by the viewer, issues related to the creation or metamorphosis, among others, as the Pygmalion and Galatea myth, which binds to artistic creation. Artistic metamorphosis operated equally by the filmmaker in his modern version of the doctor and the monster, for example, but, especially, in the rereading of the Jonquet’s novel. This study seeks to highlight some of the major myths and symbols inserted in Almódovar’s movie and what interpretations such insertions may ensue.
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Pós-graduação em Letras - FCLAS
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Pós-graduação em Odontologia Restauradora - ICT
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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This article compares Thomas Mann´s The death in Venice with its cinematographic version directed by Luchino Visconti.
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O presente trabalho tem como objetivo descrever o funcionamento do departamento de arte na produção audiovisual, com foco na produção de objetos. Estabeleceu-se como método a pesquisa-ação e, para tal realizou-se acompanhamento durante a produção do longa-metragem Super Pai. Discorre-se sobre o departamento de arte e descreve-se o processo de produção dos cenários e da produção de objetos na obra supracitada
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Considerado exemplo modelar do gênero giallo, estilo exclusivamente italiano e que envolve a solução de um mistério relacionado a uma série de assassinatos, o filme Prelúdio Para Matar (1975), do cineasta Dario Argento (1940-), é o objeto central deste projeto de pesquisa. Para esta pesquisa se dá especial atenção à investigação da trilha sonora, que, parcialmente, junto à composição visual, formalizam as dimensões de estrutura e sentido desse filme. Serão esclarecidas informações introdutórias sobre o som e composição para o cinema de horror e o ambiente de produção de filmes na Itália; os fatores concomitantes e anteriores a produção do objeto de estudo. No tocante à trilha, serão analisados dois elementos centrais da narrativa: (1) a música, com seus códigos específicos de composição sonora; (2) os efeitos sonoros que projetam ao espectador o reconhecimento ou não de determinados sons. Partindo da premissa que o som ainda é um elemento fílmico pouco explorado nas narrativas audiovisuais, esta pesquisa estabelece uma hipótese, a qual pode ser enunciada nos seguintes termos: a trilha musical e os efeitos de som, presentes no filme Prelúdio para matar, são elementos centrais para a articulação do gênero discursivo giallo nesse caso, co-participando, de modo visível ao espectador, com o controle, a estruturação e as estratégias de narração ali presentes
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Pós-graduação em Geociências e Meio Ambiente - IGCE
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The activation of aluminum surface has the most various purposes as for example the search for the surface activation mechanism and the corrosion products by mercury ions. The objective of this work is to study the reactivity of the surface of aluminum metal when activated by mercury ions (Hg2+), with the consequent formation of an Al-Hg amalgam. Results demonstrate that the kinetics of the reaction, by measuring the mass change with time of the corrosion product formed between Al and Hg, and analysis by infrared spectroscopy (IR) that the product of the reaction between the amalgam, located on the surface, and the atmospheric oxygen is Al2O3 (aluminum hydroxide). The results also indicate that the kinetics of the reaction between the amalgam (Hg-Al) and atmospheric oxygen is of first order and reach a region where there is no more formation of product