O som, o sentido e o gênero Giallo: análise do filme Prelúdio Para Matar (1975), de Dario Argento

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

Produção de chapas de partículas com resíduos de madeira Cordia goeldiana

The aim of this research consisted in the use of wastes from tropical wood (Cordia goeldiana) with low density and the polyurethane resin (mono and bicomponent) castor oil based in the manufacture of particleboards, generating subsidies as application in rural and civil construction, as well in the furniture industry. The particleboards were manufactured with 15% of polyurethane resin content (one part of pre-polymer and one part of polyol), compaction pressure of 4MPa, pressing temperature of 90 degrees C and press time of 7 minutes. The physical and mechanical properties investigated were density, moisture content, strength modulus in bending and internal bond, both obtained according to the recommendations of the Brazilian standard ABNT NBR 14810:2002. The mean values obtained for these properties were systematically superior to the Brazilian standard requirement. This point showed that it is possible the use of Cordia goeldiana wastes in the particleboard production. We confirmed the hypothesis of a significant linear relation between density and the internal bond of the panels, allowing the estimation of the internal bond of particleboards.

Desempenho operacional de colhedora de forragem com diferentes tamanhos de partículas com e sem o uso do processador

Pós-graduação em Agronomia (Energia na Agricultura) - FCA

Determinação de fósforo em biodiesel utilizando eletrodo quimicamente modificado com nanopartículas de ferro

Once petroleum is na exhaustible source of energy, alternative fuels are having more prominence. A much discussed option for replacing fossil fuels is the use of biofuels derived from oils or fats, especially biodiesel. The biodiesel preparation is through a reaction named transesterification, a reaction of triglycerides with a short chain alcohol with a catalyst, producing a mixture of fatty acid esters and glycerol. According to ANP (National Petroleum Agency) specifications, biodiesel can have contaminants due to the catalyst or oil used on its synthesis, such as phosphorus, wich can damage the catalytic converter and cause significant increase in the particles emission. This project aims to develop na alternative method using chemically modified electrodes with iron nanoparticles for determination of phosphorus in biodiesel. For the formation of the iron nanoparticles film on the surface of a glassy carbon electrode, was used a iron sulfate solution. The film was formed after 10 successive cycles, with a scanning speed of 50 mV s-1 and a potential range of -0,9 to -1,25 V. To reduce possible oxides on the surface and activate the electrode, it has been subjected to a cathodic polarization with a potential of -1,25 V for 15 minutes in a sodium hydroxide solution. In cyclic voltammograms obtained in the study of the speed of scanning, there is an increase in the intensity of the anodic and cathodic current peaks. The cathodic peak current varied linearly with the square root of scan rate, showing that the electrode is controlled by diffusion. After successive additions of phosphate there is a linear variation in the current peak in the concentration range of 1,0 x 10-7 a 1,0 x 10-6 mol L-1. To determine if the concentration of phosphorus in real sample, the method of adding standard was used by adding aliquots of phosphate ions in the solution containing soy biodiesel extracted with ....

Caracterização físico-mecânica de painéis de partículas de bambu com adição de casca de café

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Cenário de emissão contínua de partículas em colisões nucleares relativísticas

Pós-graduação em Física - IFT

O mirabolante mundo das partículas elementares: uma sequência didática para professores de física

Pós-graduação em Ensino de Física (mestrado profissional) - FCT

Alguns aspectos da transposição de uma sequencia didática sobre o comportamento de partículas e ondas

This work presents a partial analysis of the implementation of a didactic sequence aimed at undergraduate students of quantum chemistry. The sequence develops on some fundamental concepts to understand the behavior of the objects particles and waves in the doubleslit experiment. The analysis is based on the didactic transposition theory, proposed by Yves Chevallard, which allows reflection upon the scientific knowledge reorganized to be used in teaching contexts. Our interest in this study lays on the dynamics of transposition of knowledge-to-be-taught into knowledge-taught, particularly the importance of making concepts more comprehensible. Results showed that the communication of knowledge by the students is presented with interruptions, gaps and colloquial language. The analysis allowed the identification of needs and possibilities of learning, as well as a turn in the teacher practice, through a dynamic process of action and reflection.