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Navegando por Data de Publicação, começando com "2025-04-01"

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    Escreventes técnico judiciários e a construção profissional de sua atuação em um foro de violência doméstica e familiar de São Paulo
    (Universidade Federal de São Carlos, 2025-04-01) Kahwage, Tharuell Lima; Bonelli, Maria da Glória; https://lattes.cnpq.br/1739441747281321; https://orcid.org/0000-0003-3877-9825; https://lattes.cnpq.br/8934697439653323; https://orcid.org/0000-0001-7532-2192
    Judicial clerks are a group composed mostly of white women, who take up such positions more frequently than men, according to data from the National Council of Justice. They are responsible for practices essential to the functioning of the justice system, performing administrative and routine activities, such as filing cases, serving the public, and drafting legal documents. Despite the centrality of their role and the functions they perform, studies on this group are still incipient, especially when compared to production around the judiciary, an activity of greater preference and notoriety compared to civil servants, who tend to accumulate activities of less autonomy. Based on this scenario, the objective of this research is to understand how the position of judicial technical clerk is constructed, particularly those who work in a court of domestic and family violence against women in the state of São Paulo. I seek to analyze, through narratives produced by interactions of disputes and cooperation between themselves and other actors, what meanings they elaborate on the activities they perform, as well as how processes of gendering and racialization occur in this dynamic. This is an ethnography recorded through a field diary combined with semi-structured interviews, the data from which were subjected to content analysis. The data obtained reveal that the construction of the position is a dynamic process, shaped by social interactions of dispute and cooperation, as well as by the constant negotiation of the meanings present in their narratives.
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    (Des)estímulo à participação popular: inefetividade das ações populares e das ações civis públicas ajuizadas por associações na seara ambiental
    (Universidade Federal de São Carlos, 2025-04-01) Ribeiro, Elen Pessoa de Queiroz; Oliveira, Celso Maran de; Amarante Junior, Ozelito Possidonio de; https://lattes.cnpq.br/1314612121213589; https://lattes.cnpq.br/9911833172043700; https://lattes.cnpq.br/7857430001310706; https://orcid.org/0000-0001-9220-4251; https://orcid.org/0000-0002-4030-9905
    As ações coletivas são importantes instrumentos que podem ser utilizados na tutela do meio ambiente. Além de conferirem segurança jurídica, estimulam a participação popular e fortalecem o exercício da democracia. Todavia, a pandemia que se iniciou no ano de 2020 acarretou uma crise humanitária que assolou o globo e marcou setores econômicos, políticos e sociais, além de afetar as atividades jurisdicionais. [...] Assim, foi possível observar que as Ações Populares são instrumentos subutilizados, bem como as Ações Civis Públicas, por parte das associações, e estão mais sujeitas a não obterem êxito na tutela do objeto pretendido.
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    Influência da dopagem de Fe/Co sobre as propriedades dielétricas no sistema Bi3.25Nd0.75Ti3O12
    (Universidade Federal de São Carlos, 2025-04-01) Lozano, Rafael; Zabotto, Fabio Luis; https://lattes.cnpq.br/8828635263888498; https://orcid.org/0000-0003-2868-6828; https://lattes.cnpq.br/5602149711574787; https://orcid.org/0009-0002-6446-9476
    With the trends in environmental protection, there is a growing interest and demand in the development of lead-free ferroelectric materials to replace lead-based materials with properties suitable for various technological applications. In this context, bismuth titanate (Bi4Ti3012 - BiT) is a material with a structure of the Aurivillius family, or bismuth layers, with high potential for applications in devices and other technological apparatuses because it presents ferroic and also multiferroic properties due to its compositional manipulation and that mimic some characteristics presented by the dominant material in these applications, lead zirconate titanate (PbZr1−xTixO3 - PZT). In this case, it is possible to tune both the dielectric and ferroelectric properties and add multiferroic and/or photovoltaic properties to the BiT system through doping with chemical elements of interest. In this work, the material Bi3.25Nd0.75Ti(3−x)(Co1/2,Fe1/2)xO12 was prepared using the conventional sintering technique, which is a bismuth titanate modified with neodymium (Nd) in the Bi A site and with iron (Fe) and cobalt (Co) ions in the Ti B site. The effects of the Nd dopant confer to the BIT system the improvement of the electrical polarization, while the co-doping with Fe/Co is motivated by the search for control of the crystal structure and properties, mainly inducing multiferroic properties. Furthermore, the presence of Fe and Co in the bismuth titanate matrix can result in unexplored phenomena, such as additional phase transitions and improvement of the magnetic behavior induced by modifications. Thus, this work proposes to explore the effects of co-doping of cobalt and iron on the dielectric, pyroelectric and ferroelectric properties of the system Bi3.25Nd0.75Ti(3−x)(Co1/2,Fe1/2)xO12, with 0 ≤ x ≤ 0.4 (abbreviated as BNdTFC-x). For this purpose, impedance spectroscopy techniques and pyroelectric properties were explored in samples with different Fe/Co doping compositions, subjected to temperatures between 15 K and 980 K. The analysis allowed to identify ferroelectric-paraelectric phase transitions, as well as to investigate the influence of co-doping on the electrical and dielectric properties of the material. The results demonstrated that the introduction of Fe and Co shifts the transition temperature to higher values, but also influences the electrical conduction mechanisms, impacting the dielectric loss under certain conditions. Furthermore, the variation of critical temperatures with doping suggests relevant structural and electronic modifications, contributing to a better understanding of the ferroelectric behavior of the system. These observations make the material an interesting candidate for applications in electronic devices operating at high temperatures.
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