Todo nordeste que couber a gente publica: o The New York Times e as representações do nordeste brasileiro na era da política da boa vizinhança (1933-1945)

The Brazilian Northeast has been a constant subject for journalists of one of the world's leading media companies - The New York Times - between 1933 and 1945. This time, the US government implemented a new foreign policy for Latin America - known as the Good Neighbor Policy. It preached, various points including more respect and attention to the countries south of U.S. borders. Because of her geostrategic importance, Brazil was one of the countries that received the most attention of the bureaucracy and American press. This study investigates the multiple Northeast representations formulated in The New York Times' pages when the Americans were spotlight is on the region. It delineates similarities and differences between the NYT, the press and the governments of the United States and Brazil from the ways of conceiving this particular part of Brazil. Through the analysis of texts, photographs and maps, it is dedicated to establish connections between spaces, press and politics of the 1930s and 1940s. These decades there were relevant changes in the political landscape of both countries that permeated the news, reports and articles of NYT. Circumstances such as the 1935 armed uprisings - known as Communist Conspiracy - the installation and operation of the New State, and especially the Brazilian and US participation in World War II and the bilateral negotiations on the installation of US bases in Brazil were cardinal for the various Northeast images that circulated in the publication. The region was repeatedly subject of correspondent of the New York newspaper in Brazil, Frank M. Garcia, but also present on matters of professionals responsible for various sections: review of books, publishing, tourism, foreign affairs, etc. Along the investigated period, the visions of the region made in the articles published in the newspaper that suffered major metamorphoses. Starting with Northeast of the drought, famine and death recurrent in Brazilian literature to the most dangerous point for hemispheric defense, passing through representations of the American West lawless nineteenth century and the Latin America marked by the dominance of exotic nature and stagnation, a space to be transformed by the US technical knowledge.

Uso da cinza do bagaço da cana-de-açúcar como matéria-prima na substituição dos fundentes para aplicações em porcelanato

The present study aims to evaluate the potential use of bagasse ash from sugar cane (CBC) as a flux, replacing phyllite and/or feldspar in standard industrial mass production of enameled porcelain, verifying the possibility of the CBC contribute to the overall reduction of the coefficient of thermal expansion of the ceramic mass. To this end, as a result of the research, we characterized the raw material components of the standard mass (clay, phyllite, kaolin, feldspar, quartz and talc) and the residue of BCC, by testing by XRF, XRD, AG, DTA and ATG. Specimens (CDP) were manufactured in the dimensions of 100 mm x 50 mm x 8 mm in uniaxial matrix under compaction pressure of 33 MPa, assembled in batches of 3 units subsequently sintered at temperatures of 1150°C to 1210°C by varying the Rating Scale at 10°C, heating and cooling ramp of 50°C/min and 25°C/min, with levels of 1 min, 3 min, 5 min, 8 min, 10 min, 15 min, 30 min and 60 min. analyzing the results of the physical properties of water absorption (WA), linear firing shrinkage (LFS), dilatometric analysis (DTA), flexural strain (SFT) and SEM of the sintered bodies in order to verify the adequacy of CDP to ISO 13006, ISO 10545, NBR 13816 standards; NBR 13817 and NBR 13818. The study showed that the formulations that best suit the requirements of the standards are:. G4 - which was applied in 10% of replacing the CBC phyllite, sintering temperature 1210 ° C for 10 min and porch, and F3 - with application of 7.5% of CBC to replace the feldspar in the sintering temperatures of 1190°C, 1200°C and 1210°C for 10 min and porch. These formulations showed better performance regarding the formation of primary and secondary mullite, with considerable reduction of cracks and pores, meeting the prerequisites of standards for glazed porcelain. The results shows that the use of the CBC as a flux in the preparation of porcelain mass meets standard parameters for the manufacture of the product, and thereby can reduce environmental impact and the cost of production. Therefore, it is recommended to use this residue in the ceramics industry, due to its industrial, commercial and collaborative viability for sustainability.

Uso de resíduos de queima de casca de café e argila da região sul da Bahia na obtenção de isolador elétrico cerâmico

The electrical ceramic insulators industry, uses noble raw materials such as siliceous and aluminous clays of white burning, in order to provide plasticity of the mass and contribute to electrical and mechanical properties required of the product, and feldspar with the flux function In literature references the composition of the masses indicates that the clay participates in percentage between 20 and 32, and feldspar 8 to 35, these materials have significant cost. In this research was performed the total replacement of commercial clay, for white burning clay from Santa Luzia region in southern Bahia and partial replacement of feldspar by ash residue of husk conilon coffee burning, from extreme south of Bahia. The objective of replacement these raw materials is to aver its technical feasibility and call attention for the embryo pole of ceramic industry for the existing in the south and extreme south of Bahia, which has significant reserves of noble raw materials such as clay white burning, kaolin, quartz and feldspar, and generates significant volume of gray husk conilon coffee as alternate flux. Clay Santa Luzia is prima noble material whose current commercial application is the production of white roofing. The residue of coffee husk ash is discarded near of production sites and is harmful to the environment. Phase diagrams and statistic design of experiments, were used for optimization and cost savings in research. The results confirmed the expectations of obtaining electrical ceramic insulators, with white burning clay of Santa Luzia and partial replacement up to 35.4% of feldspar, by treaty residue of conilon ash coffee husk burning. The statistic design that showed best results was for formulation with percentages of: clay 26.4 to 30.4%; kaolin 14.85 to 17.1%; feldspar 12.92 to 16.96%; R2 residue 7.08 to 9.2% and Quartz 32.5 to 38.75%, relative to the total mass of the mixture. The best results indicated; 0.2 to 1.4% apparent porosity , water absorption 0.1 to 0.7%, flexural strength 35 to 45MPa , dielectric strength 35-41 kV/cm , the transverse resistivity 8x109 2.5x1010 Ω.cm and for the dielectric constant ε/ε0 7 to 10.4, specification parameters for manufacturing ceramic electrical insulators of low and medium voltage.

Incorporação do resíduo de cascalho de perfuração de poços de petróleo em formulações cerâmicas

During its operations, the oil industry generates a lot of waste, including gravel from drilling. Control of environmental impacts caused by this waste represents a major challenge. Such impacts can be minimized when it is given an appropriate management by being properly treated and properly disposed or recycled. The properties of these materials can be greatly influenced when a waste is added to its composition. This work aims to study the incorporation of gravel waste oil-well drilling in the standard body for production of red ceramic from a ceramic industry in São Gonçalo do Amarante / RN. The success of the incorporation can minimize costs in the production of ceramic pieces and reduce the environmental impacts caused by waste. The raw materials used were collected, characterized, and formulated with the percentages of 0%, 20% and 40% by weight of substitution of residue were synthesized at temperatures of 900, 1.010 and 1.120 °C using 30 minute firing intervals, 1 hour and 30min and 2 hours and 30 minutes, based on a factorial design 2³. Samples were then subjected to the tests of Water Absorption, Linear Retraction Firing, Flexural Rupture Strength, Apparent Porosity and Apparent Specific mass and Scanning Electron Microscopy (SEM) of break section. The results showed that the use of the residue for the manufacture of the ceramic products is possible (tiles, bricks and massive hollow bricks) replacing the clay to 40%, meeting the requirements of the standard and the literature for the technological properties of the final product.

Estudo da adição de resíduos de quartzitos para obtenção de grés porcelanato

In States of Paraíba (PB) and Rio Grande do Norte (RN), northeast of Brazil, the most significant deposits of non-metallic industrial minerals are pegmatites, quartzites and granites, which are located in Seridó region. Extraction of clay, quartz, micas and feldspars occurs mainly in the cities of Várzea (PB), OuroBranco (RN) and Parelhas (RN). Mining companies working in the extraction and processing of quartzite generate large volumes of waste containing about 90% SiO2 in their chemical composition coming from quartz that is one of the basic constituents of ceramic mass for the production of ceramic coating. Therefore, this work evaluates the utilization of these wastes on fabrication of high-quality ceramic products, such as porcelain stoneware, in industrial scale. Characterization of raw materials was based on XRF, XRD, GA, TGA and DSC analysis, on samples composed by 57% of feldspar, 37% of argil and 6% of quartzite residues, with 5 different colors (white, gold, pink, green and black). Samples were synthesized in three temperatures, 1150°C, 1200°C and 1250°C, with one hour isotherm and warming-up tax of 10°C/min. After synthesizing, the specimens were submit to physical characterization tests of water absorption, linear shrinkage, apparently porosity, density, flexural strain at three points. The addition of 6% of quartzite residue to ceramic mass provided a final product with technological properties attending technical norms for the production of porcelain stoneware; best results were observed at a temperature of 1200°C. According to the results there was a high iron oxide on black quartzite, being their use in porcelain stoneware discarded by ethic and structural question, because the material fused at 1250°C. All quartzite formulations had low water absorption when synthesized at 1200°C, getting 0.1% to 0.36% without having gone through the atomization process. Besides, flexural strain tests overcame 27 MPa reaching the acceptance limits of the European Directive EN 100, at 1200°C synthesizing. Thus, the use of quartzite residues in ceramic masses poses as great potential for the production of porcelain stoneware.

Jornalismo público em questão: uma análise do TVU Notícias

Esta dissertação analisa um programa jornalístico da TV Universitária do RN e sua possível contribuição para a formação cidadã. O objetivo principal é analisar se o telejornal TVU Notícias contribui para a formação cidadã dos seus telespectadores, a partir das escolhas dos assuntos e da angulação das matérias exibidas no programa. Busca-se compreender os princípios, os conceitos e as práticas do jornalismo público, movimento formado por um grupo de jornalistas norte-americanos que pretendiam recuperar a ética e os princípios democráticos no processo de formulação de notícias. Pretende-se apresentar e analisar o jornalismo público como uma forma possível de desenvolver a cidadania e verificar se os conceitos que conduzem este tipo de jornalismo podem ser encontrados no jornalismo da televisão pública brasileira. Para consecução do objetivo deste trabalho, foi realizada pesquisa bibliográfica acerca do jornalismo público, da evolução do jornalismo, dos efeitos da mídia e do conceito de TV pública. Foi, também, realizada pesquisa empírica através da observação do processo de produção do programa, relacionando-se as matéria/pautas, revendo-se os arquivos dos textos das matérias, e para complementar o estudo assistiu-se os áudios das matérias gravados em mídia DVD. A análise envolveu 12 programas e 12 matérias veiculados no período de 2009 a 2014. Os resultados da pesquisa permitiram constatar que a amostra das notícias apresentadas no programa sugere que os assuntos agendados são, em sua maioria, de interesse público e valor social, mas carecem de mais contextualização, profundidade e pluralidade de fontes. A partir desses resultados e tendo como diretriz o papel e a função da TV pública, concluiu-se que para o TVU Notícias possa contribuir efetivamente para a formação de seus telespectadores precisa superar a superficialidade das matérias apresentadas, aproximando-se mais do jornalismo que se espera de uma TV pública.