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Alianças contingentes: identidade, ressentimento e redistribuição no movimento LGBTQIA+
(Universidade Federal de São Carlos, 2026-06-11) Couto, Guilherme Pessatti do; Sanchez, Fábio José Bechara; https://lattes.cnpq.br/6423443695464907; https://lattes.cnpq.br/0522025448915690; Leite Júnior, Jorge; Facchini, Regina; https://lattes.cnpq.br/7253561448346772; https://lattes.cnpq.br/6504716405484255
This dissertation investigates how the LGBTQIA+ Movement constitutes itself as a collective political subject in the context of the reopening of institutional channels for participation during the third government of Luiz Inácio Lula da Silva. The analysis takes as its empirical object the 4th National Conference on the Rights of LGBTQIA+ People, encompassing its state (São Paulo) and national stages, and combines participant observation with documentary analysis of the proposals approved throughout the conference process. The study is organized around three analytical axes: the forms of political articulation among the different subjects within the movement; the demands directed toward the State; and the internal dynamics of conflict and coalition. The first chapter examines identity as a theoretical problem, drawing on queer theory, debates on identitarianism, and the historical formation of the movement’s subjects. The second chapter analyzes conflicts observed in the field, with emphasis on the expansion of subjects named by the movement, disputes surrounding intersectionality as a political grammar, and resentment as a structuring affect of internal relations, especially between gay men and other political subjects. The third chapter examines the proposals produced at the Conference, mapping demands related to institutional advocacy, labor, education, combating violence, social protection, and health, as well as the tensions and consensuses involved in constructing a common agenda. The findings indicate that the identity politics of the LGBTQIA+ Movement cannot be reduced to a fragmentary dynamic; rather, it constitutes a field of disputes in which demands for recognition and redistribution are articulated in contingent ways. The notion of contingent alliances is proposed to describe coalitions formed not from a pre-existing shared identity, but from situated negotiation among differences and the perception of partially convergent interests. By historicizing the movement’s internal tensions and analyzing how resentment simultaneously fractures and fuels political mobilization, the research contributes to questioning interpretations that associate identity politics with the fragmentation of the progressive political field.
Monitoramento do desgaste de ferramentas de usinagem de painéis sanduíche por meio de análise de vibrações e microscopia
(Universidade Federal de São Carlos, 2026-06-11) Perruci, Marcelo de Jesus; Shiki , Sidney Bruce; http://lattes.cnpq.br/0573973677787523; https://orcid.org/0000-0001-9373-3630; https://lattes.cnpq.br/3785044141613175; Antonialli, Armando Ítalo Sette; Castillo, Pedro Christian Ayala; http://lattes.cnpq.br/4367459395417045; http://lattes.cnpq.br/1523874172713616; https://orcid.org/0000-0002-3466-0416; https://orcid.org/0000-0003-0236-0643
The application of composite materials has expanded across various areas of modern industry, driven by the search for lighter and stronger components. These materials exhibit characteristics such as high specific stiffness, corrosion resistance, and low mass, making them attractive to sectors such as automotive, naval, sports, wind energy, and biomedical segments. However, it is in the aeronautical industry that composite materials have the most significant use, being employed in the manufacture of fuselages, wings, and internal components, with the main purpose of reducing the total weight of aircraft, promoting greater fuel efficiency, increased flight range, and reduced emissions. The processing of these materials is largely carried out by CNC machining centers, equipped with cutting tools developed to handle the abrasiveness and heterogeneity of composites. Such tools have high development and acquisition costs and are subject to accelerated wear during the process, which reinforces the need for strategies that allow for maximum utilization of their service life without compromising the quality and integrity of the final product. In this context, this study proposes monitoring the condition of cutting tools through a combination of direct and indirect methods. The direct method employs geometric characterization of the cutting edges of the tools using microscopy, while the indirect method utilizes the analysis of mechanical vibrations captured by sensors integrated into the CNC machine spindle. The methodology consists of the periodic collection of vibration signals throughout the tool lifespan, followed by analysis of the cutting edge condition through microscopic image analysis. The correlation between vibration levels and wear conditions observed in the microscopy analyses highlights the potential for using this information together to build a predictive model for estimating the optimal tool usage time, contributing to greater production efficiency.