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Navegando por Data de Publicação, começando com "2023-05-25"

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    Darwinismo social em fast-forward: uma investigação sobre literatura cyberpunk e ambientalismo
    (Universidade Federal de São Carlos, 2023-05-25) Ueda, Nicholas Vendramin; Marzochi, Samira Feldman; https://lattes.cnpq.br/6466778428443375
    Bien qu’il soit possible de trouver des études avec de brèves mentions de la présence de problèmes socio-environnementaux dans les récits de science-fiction cyberpunk, la façon dont ils sont dépeints ne reçoit pas beaucoup d’attention. Extraits de "Les androïdes rêvent avec moutons électriques ?", de Philip. K. Dick, et de "Neuromancer", de William Gibson, ont étudié pour se dévoiler la façon dont les problèmes socio-environnementaux sont représentés dans la littérature de science-fiction cyberpunk. Le choix de ces œuvres est dû au fait qu’elles sont, respectivement, l’œuvre qui a inspiré le cyberpunk et l’œuvre qui a inséré le cyberespace dans la science-fiction, ayant comme auteur l’un des principaux représentants du sous-genre littéraire en question. L’analyse a été réalisée selon les critères de l’analyse textuelle discursive, de sorte que des extraits qui décrivent des problèmes socio-environnementaux ont été sélectionnés et, sur la base de ceux-ci, des catégories ont été élaborées afin qu’il soit possible d’identifier quels types de problèmes socio-environnementaux ont été détectés. À partir des données obtenues, un parallèle a été fait avec les revendications et les préoccupations écologistes des années 1960 et 1980, période de production des deux récits retenus pour l’étude, afin de déterminer si les problèmes socio-environnementaux décrits dans la fiction sont les mêmes que ceux vécus par la société de l’époque et aussi de comprendre leurs origines.
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    Precoating em filtro de mangas para remoção de material particulado e potencial redução da emissão de SO2 na dessulfurização
    (Universidade Federal de São Carlos, 2023-05-25) Andrade, Bárbara Karolinne Silva Araújo; Sartim, Rafael; https://lattes.cnpq.br/0380809249444032; https://orcid.org/0000-0002-5678-2027; Aguiar, Mônica Lopes; https://lattes.cnpq.br/0431688649128529; https://orcid.org/0000-0003-4540-5776; https://lattes.cnpq.br/9399647524296621; https://orcid.org/0000-0002-6031-9430
    The steel industry is responsible for generating pollutants that need to be treated before being released into the atmosphere, various gases such as ammonia, benzene, carbon monoxide, sulfur dioxide and particulate matter. To carry out the cleaning of particulate matter, the dirty gas passes through gas-solid separation equipment, such as bag filters, which have high collection efficiency for a wide granulometric range and easy operation. To increase bag filter collection efficiency, some industries use a bag pre-treatment called precoating, which consists of covering the surface of non-woven filter media with a certain particulate material, forming a fine layer of dust that increases the time mango saturation. In addition to the benefits in filtration, the hydrated lime present in the precoating layer could be investigated in the removal or reduction of sulfur dioxide, in order to reduce the visibility of gases in chimneys. However, studies on precoating and the influence of operating parameters in bag filters in the treatment of sintering gases are rare. Thus, this work aims to evaluate the efficiency of precoating, varying its humidity and thickness, in the filtration of gases and the desulphurization of gases from the steel industry. For this purpose, in Chapter 2, the parameters of thickness and humidity of the precoating layer were evaluated on the efficiency of collecting micro and nanoparticles; in Chapter 3 the same parameters were evaluated in 50 filtration cycles; and, in Chapter 4, the efficiency of hydrated lime in a gas desulphurization unit was evaluated. The results showed that precoating increased the collection efficiency for micro and nanoparticles by up to 3%, increased the cycle time by up to 9000s and that hydrated lime showed 100% absorption of sulfur dioxide in a batch system
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    O uso do livro didático
    (Universidade Federal de São Carlos, 2023-05-25) Oliveira, Laôr Fernandes de; https://lattes.cnpq.br/5479838101146249; https://orcid.org/0000-0003-1108-1152
    Este artigo tem como objetivo investigar as significações geradas pelos docentes em relação ao material didático de ciências, organizado pela rede escolar SESI-SP, por meio da metodologia dos Núcleos de Significação. Através do estudo das significações, foi possível conhecer aspectos importantes dos professores das escolas SESI-SP, de sua proposta educacional e, sobretudo, do material didático. Os sujeitos desta pesquisa responderam a um questionário com questões fechadas e abertas. A partir das respostas obtidas e da análise dos dados, foram efetuadas as tabulações das questões fechadas e elaboração de núcleos de significação das questões abertas, visando uma boa compreensão e enriquecimento das questões trazidas pela literatura. Os resultados sugerem que a rede SESI-SP deve propiciar momentos de interação entre alunos e professores por meio das atividades propostas pelo material didático de ciências, com a utilização de recursos tecnológicos em um ambiente colaborativo.
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    ESIREOS: Avaliação internal, eficiente e escalável de métodos não supervisionados de detecção de anomalias
    (Universidade Federal de São Carlos, 2023-05-25) Alves, William Adriano; Marques, Henrique Oliveira; https://lattes.cnpq.br/6792856084528925; Naldi, Murilo Coelho; https://lattes.cnpq.br/0573662728816861; https://lattes.cnpq.br/7758293466527368
    Anomaly (outlier) detection is one of the main problems in data mining. Since anomalies can translate into important information in numerous fields, several methods were developed to identify them, especially unsupervised methods, which is the focus of this work. To soften the need for studies on assessing and quantifying the quality of the result of these unsupervised methods, the IREOS index was proposed as the first internal evaluation technique for unsupervised anomaly detection methods. IREOS allows one to select the best algorithm and parameters for a given problem using only intrinsic information from the data. However, IREOS demands the training of many highly complex classifiers for each object in the dataset whose outlier detection solutions are being analyzed. This feature limits the application of IREOS to small datasets since the classifiers use all points in the dataset during its training. In the present work, we propose ESIREOS, the first version of IREOS that addresses its performance and processing deficiencies using Massive Parallel Computing techniques that efficiently implement horizontal computational scaling for many machine learning problems. ESIREOS also makes use of approximated Nearest Neighbor Graphs to reduce the volume of data and processing power demanded by IREOS without any significant loss in the quality of the results. We evaluate ESIREOS theoretically, estimating its asymptotic complexity and with experiments over real and synthetic datasets to attest to its effectiveness and performance compared to the original version, including large datasets. The results showed that ESIREOS resulted in a significant improvement in computational complexity when compared to the original IREOS while maintaining quality. ESIREOS showed to be capable of evaluating solutions for very large datasets, even those which IREOS was not capable of evaluating in a feasible time. Therefore, this efficient and scalable new version can be used in many scenarios, mainly, but not limited to, those with large or distributed data.
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    O corvo que rima também sabe jogar: tradução intersemiótica e design de jogo
    (Universidade Federal de São Carlos, 2023-05-25) Krasnoschecoff, Andrêi; Martins, Maria Sílvia Cintra; https://lattes.cnpq.br/9241992645160356; https://orcid.org/0000-0003-3911-418X; https://lattes.cnpq.br/6898767172538319; https://orcid.org/0000-0002-6632-9138
    Electronic games emerged in the 1950s. Over time, the novelty became a kind of cultural phenomenon, resulting, on the one hand, in the creation of an industry that moves a lot of money, and on the other, in a cultural practice that influenced and was influenced by various spheres of human activity. Thibault (2016) understands that games emerged in a borderline position of culture and over time began to occupy a central position. This movement takes place within the semiosphere, a concept developed by Lotman (2014) to explain cultural semiotic behavior. Languages have been merging as technology has developed. Within this cultural flow, translations take place. Translation, here, will be treated as an everyday phenomenon of language, as we are using the theoretical ideas of Peirce's semiotics (2018) and the Semiotics of Culture, which place translation in a different place than what is usually thought. The current importance of electronic games within the dynamic system of culture was what motivated this experimentation to produce an intersemiotic translation, whose source text is a poem (The Raven, written by Edgard Allan Poe) and the result is a document with a script and guidelines for creating an electronic game. In this process, we bring the translator's view: the problems he encounters and the attempt to solve them. It is expected to contribute both to the reach of the work and the author to different audiences and discussions about the translation and interaction between electronic games and other media.
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    Uso da água, agricultura e florestas: diagnóstico e percepção de atores locais em tempos de mudanças climáticas
    (Universidade Federal de São Carlos, 2023-05-25) Gallo, Mariane de Cássia; Sais, Adriana Cavalieri; Leite, Eliana Cardoso; https://lattes.cnpq.br/0115095851353833; https://lattes.cnpq.br/2186623269243747; https://orcid.org/0000-0002-5169-882X; https://orcid.org/0000-0003-3152-2576; Oliveira, Renata Evangelista de; https://lattes.cnpq.br/6777223792862756; https://orcid.org/0000-0002-4410-7809; https://lattes.cnpq.br/0228080926024681
    Landscapes, dynamic in nature, are constantly transformed to better adapt to human needs and now need to inspire another movement: how can people place the landscape at the center of their reflections? With the advance of the predatory use of natural resources, we see fundamental elements such as water uffering impacts in its natural cycle and consequently threatening the future supply, mainly of the most vulnerable communities. Climate change, intensified by anthropic action, is a major challenge in many spheres, including water security. Thus contextualized, this work aims to analyze the perception, in a section of the local community, about the changes in the landscape in the watershed of Ribeirão do Meio in Leme/SP. In addition to the identification of physical aspects, evaluated through a bibliographical and cartographic review, it was intended to expand the look to the perception of citizens, with special concern to the view of family farmers. For this purpose, semi-structured interviews were applied and subsequently analyzed quantitatively and qualitatively, using Bardin's categorical content analysis method. The results pointed to a convergence between the collected reports and the data found in the researched bases, such as the census surveys of the Brazilian Institute of Geography and Statistics (IBGE). Impressions about changes in the rainfall regime and increased drought echoed with the trends identified in the 2022 Situation Report, prepared by the Mogi Guaçu River Basin Committee (UGRHI- vi 09). The percentage of native vegetation cover in the study area is lower than the state average of 22.9% (Forestry Inventory of the State of São Paulo, 2020), while a large part of the territory is occupied for the development of different economic activities. In view of the context described, it is understood that the community's point of view is fundamental to be the focus and basis for future planning aimed at maintaining ecosystem services in the basin and elaborated according to the real desires of those who occupy and live in this land.
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    Análise dos efeitos de expansão e crise econômica sobre os diferenciais de renda por gênero no Brasil via regressão quantílica
    (Universidade Federal de São Carlos, 2023-05-25) Oliveira, Bruna Gabrielle Santos Gonçalves Oliveira; Figueiredo, Adelson Martins; http://lattes.cnpq.br/2582161065438214; http://lattes.cnpq.br/1393907557190168; Rodrigues, Rodrigo Vilela; Antigo, Mariangela Furlan; http://lattes.cnpq.br/7066100737307566; http://lattes.cnpq.br/9827830212937625
    This study investigates wage inequalities between men and women in Brazil, considering variables such as race, region, job position, occupational group, hours worked, age, and educational level. The objective is to understand the persistent income disparities in the labor market and contribute to the formulation of public policies more aligned with Brazilian realities. The analysis is based on the hypothesis that economic crises exacerbate these inequalities. To this end, the study examines three distinct periods: a year of economic expansion (2007), the beginning of Brazil's contemporary economic crisis (2015), and a year marked by the intensification of the crisis due to the pandemic (2021). The data used were drawn from PNAD (2007, 2015) and PNADc (2021). Unlike other studies on the subject, the estimates were conducted using Quantile Regression, based on the Mincerian equation. This method allows for the evaluation of labor returns at various points of the income distribution, not just the average. The results indicate significant wage disparities between men and women, as well as within each group. Additionaly, it was possible to conclude that these income gaps increase during periods of economic crisis.
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