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Desigualdade territorial: do Grajaú ao ensino superior, as barreiras da mobilidade no espaço periférico
(Universidade Federal de São Carlos, 2026-07-02)
Silva, Karina Rosa da
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Mariano, Neusa de Fátima
;
https://lattes.cnpq.br/5003743301847104
The city of São Paulo offers great opportunities, but it also exposes the deep inequalities faced by those living in its peripheries. In the district of Grajaú, in the far south of the capital, these opportunities coexist with daily hardships stemming from a historical process of occupation, expansion, and segregation, which still raises questions today about the future of its residents. In this context, young people's education is directly affected by instability in food security, housing, mobility, and safety, often losing priority in the face of the need to supplement family income, which contributes to school dropout rates. Given this scenario, the research investigates how young people from Grajaú manage to reach higher education, revealing trajectories marked by obstacles but also by the resilience of the territory, analyzed through the lens of Henri Lefebvre and his discussion of the production of urban space, with the aim of understanding the right to, access to, and persistence in higher education for these young people based on their own experiences and accounts.
A Genealogia crítica dos corpos: o tema da materialidade em Judith Butler
(Universidade Federal de São Carlos, 2026-07-02)
Santos, Tatiane Vieira dos
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Moutinho, Luiz Damon Santos
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http://lattes.cnpq.br/9475267722538751
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https://orcid.org/0000-0002-6343-571X
;
http://lattes.cnpq.br/9938303138115040
Judith Butler's critique of the feminist notion of the subject, developed in the 1980s, resulted in the publication of Gender Trouble: Feminism and the Subversion of Identity (1990) and Bodies That Matter: On the Discursive Limits of “Sex” (1993). These works demonstrate an effort to problematize the very notions of the constitution of the subject and its bodily materiality, as these investigations sought to problematize gender. In this sense, the main objective of this work was to understand the genealogical method applied by Butler to analyze the conception of bodily materiality. The philosopher's critique is concerned with analyzing the mechanisms that operate in the materialization of gendered bodies, since when it comes to materiality, sexual difference is invariably invoked. Butler's reflections in these early works seek to conceive other possibilities for thinking about feminism without resorting to the category of "woman". The philosopher questions the restrictive identificatory bases of gender studies, and in this task, she uses and appropriates the genealogical method—of Nietzschean origin reformulated by Michel Foucault—to analyze gender ontologies and bodily materiality. Therefore, this research analyzes Butler's critical genealogy to expose the gendered materiality produced by the matrix of intelligibility, the result of a power that constitutes while simultaneously maintaining an excluded domain.
Prisões e manicômios: um estudo sobre os processos de internação no Manicômio Judiciário de São Paulo entre 1927 e 1933
(Universidade Federal de São Carlos, 2026-07-02)
Guitler, Francisco
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Sinhoretto, Jacqueline
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https://lattes.cnpq.br/7743699562476490
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https://lattes.cnpq.br/7333326406834075
;
Jesus, Maria Gorete Marques de
The creation of the São Paulo Criminal Asylum resulted from broader historical transformations in the administration of penal institutions. The challenge faced by the authorities was determining how to enforce a criminal sentence upon an individual who lacked the capacity to understand the unlawful nature of their actions. It is well established that individuals deemed insane were often held temporarily in prisons and police stations while awaiting transfer to psychiatric hospitals. This raises the question: what criteria did penal authorities use to request the transfer of detainees to psychiatric institutions? This study aims to examine how the establishment of a criminal asylum in São Paulo affected administrative practices and the movement of individuals between institutions. It argues that the development of administrative knowledge concerning institutions of confinement was more significant than the emergence of medical-criminological expertise regarding criminally insane individuals. A qualitative approach was employed to analyze the records of institutionalized detainees. The sources include the governor's messages to the state legislature and the proceedings of the Legislative Assembly concerning the creation of the São Paulo Criminal Asylum, which provide the historical context. The primary sources, however, consist of the medico-legal case files of institutionalized patients. Ten cases of incarcerated individuals transferred from state prisons to the São Paulo Criminal Asylum were selected for in-depth analysis.
Um estudo sobre use-after-free no kernel Linux
(Universidade Federal de São Carlos, 2026-07-02)
Sunbali, Yuri Said
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Guardia, Hélio Crestana
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http://lattes.cnpq.br/1780902767520967
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https://orcid.org/0000-0001-5010-747X
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http://lattes.cnpq.br/6199138511575511
Given the growing relevance of specific vulnerability classes—and the emerging techniques and paradigms for exploiting them—there is currently a lack of in-depth, detailed studies addressing these topics. Accordingly, this work aims to contribute to current system security research by examining the Use-After-Free (UAF) vulnerability class—which has consistently proven significant for discussing emerging exploitation techniques—through a case study involving the Linux kernel and a deliberately vulnerable module.
“Eu tenho medo de falhar”: relato de um processo de autopublicação à luz da formação em linguística
(Universidade Federal de São Carlos, 2026-07-02)
Oliveira, Ester Fernandes de
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de Carvalho, Pedro Henrique Varoni de
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http://lattes.cnpq.br/0019513394358070
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https://orcid.org/0000-0002-1492-4891
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http://lattes.cnpq.br/6265314707279599
This work proposes a reflection on the self-publishing process, based on a personal experience, seeking to discuss how linguistic knowledge supports the relationship with writing. In view of a society constituted through graphic symbols, this research advocates writing beyond school and academic contexts and proposes to analyze an editorial object produced and published during undergraduate studies. The work reflects on the teaching methodology of Brazilian schools, defends writing as a therapeutic resource, and describes the process of constituting a book: from the idea to its execution. The work in question is the book “Eu Tenho Medo de Falhar”, published in digital format in September 2025 by an undergraduate student in Linguistics and author of the present work. The research is an experience report and, as such, is not based solely on a single theoretical framework. Ferdinand de Saussure, with the idea that linguistics is not limited to normative procedures, Paul-Michel Foucault, with the proposal of self-writing as a process of subjectivation, and contemporary theories on editorial design support our reflections.
Rastreamento da escoliose idiopática da coluna vertebral em escolares do município de São Carlos – SP
(Universidade Federal de São Carlos, 2026-07-03)
Chiari, Giovani Terruggi
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Tomaeli, Stephanya Covas da Silva
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http://lattes.cnpq.br/5106127124303560
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0000-0002-4073-643X
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http://lattes.cnpq.br/1792997322236358
Introduction: Adolescent idiopathic scoliosis (AIS) is a three-dimensional deformity of the spine characterized by lateral vertebral inclination in the frontal plane, rotation in the horizontal plane, and posterior flexion in the sagittal plane. This condition may lead to future health problems, such as low back pain and cardiorespiratory dysfunction. Screening programs are highly recommended and should be routinely incorporated into school-based physical examinations for early detection of the condition, with the aim of preventing or minimizing severe deformities. Objective: To estimate the prevalence of adolescent idiopathic scoliosis in São Carlos, São Paulo, Brazil. Materials and Methods: This was a cross-sectional observational study. Volunteers aged 10 to 18 years, of both sexes, enrolled in schools in São Carlos, São Paulo, Brazil, were recruited. Participants underwent postural assessment, including the Adams forward bend test combined with scoliometer measurement of the angle of trunk rotation (ATR), as well as spinal mobility tests and assessment of low back pain risk. Results: A total of 275 school students were evaluated, of whom 17 (6.2%) showed findings indicative of AIS (ATR ≥7°), while 26 (9.5%) were classified as suspected cases (ATR between 5° and 7°). A significant association was observed between findings indicative of AIS and classification as being at moderate/high risk for low back pain (p=0.0005), as well as reduced spinal mobility during right lateral flexion (p=0.0052). Conclusion: The prevalence of AIS observed among school students in São Carlos was 6.2%, with additional students identified as having findings suggestive of the condition. The association between findings indicative of AIS, a higher risk of low back pain, and reduced lateral spinal mobility reinforces the clinical relevance of these findings. Considering that postural changes during growth may negatively affect musculoskeletal function and quality of life, these findings reinforce the importance of early screening and follow-up in the school setting, which may facilitate identification, monitoring, and the implementation of preventive and therapeutic measures when necessary.
A influência da configuração de empilhamento nas propriedades estruturais, energéticas e optoeletrônicas da bicamada de PdX2 (X = S, Se, Te)
(Universidade Federal de São Carlos, 2026-07-03)
Ribeiro, Lucas Mortean
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Querne, Mateus Bazan Peters
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http://lattes.cnpq.br/5406500995477450
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https://orcid.org/0000-0002-9240-7101
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Lima, Matheus Paes
This work presents a first-principles investigation into the influence of stacking configuration on the structural, energetic, and optoelectronic properties of bilayer palladium dichalcogenides PdX2 (where X = S, Se, Te). The central objective is to analyze how different interlayer stacking patterns modulate the stability, electronic structure, and work function of these two-dimensional materials. The methodology employs computational simulations based on Density Functional Theory using the VASP software, describing the core-valence electron interactions via the projector augmented-wave method. The study uses the semilocal PBE functional for structural optimizations, obligatorily incorporating Grimme’s D3 correction for the rigorous treatment of van der Waals dispersion forces, which are fundamental elements for the stabilization of lamellar interfaces. For the refinement of the band structure and work functions, the research applies the HSE06 hybrid functional, ensuring greater accuracy in determining the band gap. The results indicate that the bulk-like configuration represents the global minimum energy state for the three investigated systems, serving as an absolute reference for stability. It is observed that the binding energy becomes progressively more negative in the sequence S → Se → Te, which reflects the increase in polarizability and the spatial extent of the electronic orbitals in the heavier atoms. The work demonstrates that PdS2 preserves its indirect band gap semiconductor character across all tested stackings, although the spatial organization significantly alters the electronic occupations near the band edges and induces a pronounced in-plane optical anisotropy for polarized light. In the PdSe2 system, stacking acts as a trigger for electronic phase transitions, allowing the material to transition between semiconductor, semimetallic, and metallic behaviors depending on the adopted geometry. Conversely, PdTe2 consistently maintains its metallic nature regardless of the stacking pattern, although it exhibits variations in the density of states and in the band crossings at the Fermi level. Bader charge analysis reveals that the stacking primarily perturbs the interfacial chalcogen atoms, establishing electric dipoles that shape the surface electrostatics. The work function exhibits a systematic reduction with the increase in chalcogen mass, but allows for additional fine-tuning through stacking engineering. The work concludes that the stacking configuration constitutes a practical and effective tuning parameter for the design of nanodevices. The detailed understanding of these mechanisms provides a theoretical foundation for the development of optoelectronic technologies and for contact engineering in two-dimensional materials.
A teologia apofático-política de Thomas Hobbes
(Universidade Federal de São Carlos, 2026-07-03)
Santana, Luiz Felipe Sousa
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Hirata, Celi
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http://lattes.cnpq.br/6347404660282248
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https://orcid.org/0000-0003-0488-0677
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http://lattes.cnpq.br/7022655532430217
This research seeks to understand how Thomas Hobbes's theological conceptions impact his political philosophy, highlighting the negative character of his statements about God and religious phenomena. His claims regarding divine incomprehensibility are present in his investigation of biblical revelation and the formation of religious dogmas, both of which are permeated by the dynamics of power — a key element in his anthropology. The purpose of this study is to examine how this apophatic position regarding the theological field as a whole determines the nature of sovereign right, as well as the role it plays in the secularization of political philosophy.
Avaliação de modelos de regressão na estimativa da força de ruptura de blocos sobre quatro estacas sob pilares quadrados e retangulares em diferentes escalas com auxílio de simulação numérica
(Universidade Federal de São Carlos, 2026-07-03)
Spozito, Raphael
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Delalibera, Rodrigo Gustavo
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http://lattes.cnpq.br/6277549281444797
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https://orcid.org/0000-0003-4730-6018
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Almeida Filho, Fernando Menezes de
The prediction of the load-bearing capacity of four-pile concrete caps lacks normative consensus, as does the truss idealization in strut-and-tie models available in the literature, which are typically evaluated using small-scale models and square columns. A regression model results in an equation with terms calibrated from a database, a methodology already used in the literature for other structural elements to obtain load-bearing capacity values. Therefore, the objective of this study was to develop predictive equations, using regression models, as an alternative for determining the load-bearing capacity of four-pile caps based on their geometry. To this end, the study focused on compiling a database associated with numerical simulations. These numerical models were extrapolated from a calibration based on literature records, encompassing square and rectangular columns, as well as effective depths greater than those of the original experimental tests. From these data, nine equations with different variable interactions were developed, all showing R² values greater than 90%. It was observed that, for columns with a cross-sectional area of less than 50% of the total pile area, a dispersion in the predictions occurred across all equations due to the complex stress flow at the contact interface between the column and the pile cap. It was also found that the increase in load-bearing capacity associated with the elongation of one column dimension followed a quadratic function. Thus, despite the higher dispersion for area ratios below 50%, the regression models proved to be an effective and viable alternative. They bypass the truss idealization difficulties debated in literature and can be continuously refined by incorporating new experimental tests
Avaliação preliminar no gerenciamento de áreas contaminadas: estudo de caso em uma área com potencial de contaminação
(Universidade Federal de São Carlos, 2026-07-03)
Saran, Carolina
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Rotta, Cláudia Marisse dos Santos
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https://lattes.cnpq.br/8142167187580488
Urban growth and the historical industrial occupation of several areas have contributed to the increasing occurrence of sites with contamination potential, making it necessary to develop studies that support their safe redevelopment. In this context, Preliminary Assessment represents the initial stage of Contaminated Site Management, allowing the identification of contamination indicators within the study area and supporting the planning of subsequent investigation stages. This study aimed to carry out the Preliminary Assessment of an area located in the municipality of Santo André, São Paulo State, Brazil, currently occupied by an educational institution and intended for future residential development. The methodology was developed according to the guidelines established by CETESB Directive Decision No. 038/2017/C. The results indicated that the site underwent different land uses over time, including activities with contamination potential, allowing the identification of potential contamination sources associated with past and current activities. Uncertainties related to the earliest periods of site occupation were also identified due to the lack of historical information. Based on these findings, the Conceptual Site Model was classified as MCA 1B, according to the classification system established by CETESB, due to uncertainties regarding the historical use of the site. Furthermore, the area was classified as a Suspected Contaminated Area, indicating the need for the continuation of the contaminated site management process through a Confirmatory Investigation. It is concluded that the Preliminary Assessment was essential for organizing the available information, identifying environmental uncertainties, and supporting decision-making regarding the management of the studied area.
Design de acopladores ópticos poliméricos em SU-8 para acoplamento fibra-chip
(Universidade Federal de São Carlos, 2026-07-03)
Zanfelicce, Gabriela Akemi Yamamoto
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Barea, Luis Alberto Mijam
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https://lattes.cnpq.br/7929868663210908
Integrated photonics has established itself as an important technology for applications in optical communications, sensing, and signal processing, enabling device miniaturization and reduced energy consumption. In this context, efficient coupling between optical fibers and integrated waveguides is fundamental to the performance of photonic circuits. This work presents the design and optimization of SU-8 taper optical couplers, a low-cost polymer compatible with conventional microfabrication processes. Different transition geometries, polarization modes, and structural dimensions were analyzed with the aim of maximizing the coupling efficiency between optical fiber and waveguide. The results indicated efficiencies above 88% and losses below 0.6 dB for the best configurations, demonstrating the potential of SU-8 for applications in low-cost integrated photonic devices.
Navegação autônoma em ambientes internos baseada em estimativa de profundidade monocular
(Universidade Federal de São Carlos, 2026-07-03)
Santos, Antonio Caique dos
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Pedrino, Emerson Carlos
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http://lattes.cnpq.br/6481363465527189
Autonomous navigation in indoor environments constitutes an important challenge in mobile robotics, especially in applications that require low computational cost, real-time operation, and the use of embedded platforms. In this context, monocular depth estimation emerges as a promising alternative to traditional depth sensors, as it allows spatial information to be inferred from a single RGB image. This work investigates the feasibility of using modern monocular depth models in autonomous navigation systems, focusing on the FastDepth model due to its computational efficiency and suitability for resource-constrained devices. To this end, a comparative evaluation was initially carried out between the FastDepth, MiDaS Small, and Depth Anything Small models, considering metrics such as number of parameters, model size, inference time, and computational cost. Then, FastDepth was integrated into a reactive controller implemented in the Webots simulator, with the aim of evaluating its performance in different indoor scenarios. The system was tested in three distinct environments: a large room, a narrow corridor, and a room with tables, representing increasing levels of spatial complexity. The results demonstrated that FastDepth presents excellent performance in processing time; however, its limitations related to relative depth and frame-to-frame instability hinder its application in denser and less structured environments. It is concluded that reactive monocular navigation is viable in controlled scenarios, but still requires complementary strategies to ensure greater robustness in real and varied environments.
Análise do perfil da diversidade étnico-racial e de gênero na Engenharia Mecânica em instituições públicas brasileiras
(Universidade Federal de São Carlos, 2026-07-03)
Brigagão Junior, Adilson
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Antonialli, Armando Ítalo Sette
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http://lattes.cnpq.br/4367459395417045
The expansion of Brazilian public higher education, combined with the implementation of affirmative action policies, has contributed to making universities more diverse and expanding access for historically underrepresented groups. Despite these advances, certain programs still exhibit low diversity, such as Mechanical Engineering, which has been historically characterized by the predominance of white men and by racial, gender, and socioeconomic inequalities. In this context, this study aims to analyze the profile of Mechanical Engineering students in Brazilian public institutions and discuss factors that may contribute to the low diversity observed in the program. To this end, a mixed-methods research approach was conducted, combining a qualitative literature review with a quantitative analysis of secondary data. The literature review addressed the historical development of engineering in Brazil, concepts related to diversity and inclusion, studies on racial and gender inequalities, and the experiences of LGBTQIA+ individuals in the academic environment. Additionally, microdata from the Higher Education Census provided by the Anísio Teixeira National Institute for Educational Studies and Research (INEP) for the period from 2020 to 2024 were analyzed. The results highlight progress in higher education access for minority groups, but also point to persistent inequalities in the profile of incoming and graduating students. In this regard, the importance of institutional initiatives aimed at promoting more inclusive and welcoming academic environments—aligned with the National Curriculum Guidelines and the demands of contemporary society—is discussed.
“Não se brinca com coisa séria”: o humor em discursos sobre a leitura
(Universidade Federal de São Carlos, 2026-07-03)
Silva, Jeniffer Aparecida Pereira da
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Aliagas Marín, Cristina
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Curcino, Luzmara
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http://lattes.cnpq.br/4849994635754652
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http://lattes.cnpq.br/6680592122128813
En esta tesis se presentan los resultados de la investigación realizada en el marco del grupo de estudios LIRE – Laboratorio de Estudios de la Lectura (CNPq/UFSCar), en el Programa de Posgrado en Lingüística (PPGL) de la Universidad Federal de São Carlos, con el apoyo de la Fundación de Apoyo a la Investigación del Estado de São Paulo (FAPESP). La investigación se enfoca en examinar los discursos sobre la lectura y las representaciones de los lectores en un campo sumamente específico: el del humor. El objetivo central consiste en analizar, a partir de los principios del Análisis del Discurso y de la Historia Cultural de la lectura, lo que se enuncia sobre dicha práctica cuando la finalidad del enunciador es generar risa u otros efectos humorísticos. Se examina cómo la lectura —una temática habitualmente institucionalizada y formal— puede ser abordada en géneros discursivos con potencial desacralizador y desacreditador (chistes, tiras cómicas, viñetas, cartoons y memes) por diversos autores del campo del humor. Para ello, se observaron ciertas propiedades de estos textos, tales como: i) la exploración de formas de homología discursiva entre los lenguajes verbal e imagético, características de la formulación multimodal de estos géneros; ii) los tipos de humor evocados; iii) las representaciones de la lectura y de los lectores actualizadas en ellos; y iv) las emociones que suelen movilizarse en torno a la lectura, especialmente en los géneros humorísticos abordados en esta investigación. El análisis evidencia la vigencia de los discursos consensuales sobre la lectura que, incluso en textos pertenecientes a un campo desacralizador, continúan alineados con lo que se enuncia al respecto en otros ámbitos. Se promueve la risa mediante representaciones bien conocidas y de larga data, de carácter disfórico, sobre quien no se considera lector o sobre quien no lee «como se debe», «lo que debería», ni con la frecuencia u orientación consideradas adecuadas. Resultan excepcionales los textos humorísticos que, en la construcción de su crítica y en la búsqueda de la risa, desconstruyen alguno de los discursos consensuales sobre esta práctica. Por lo general, la ironía y el humor no inciden sobre las formas socialmente legitimadas de representar la lectura y a los lectores, sino sobre aquello que se desvía de ellas. De este modo, se preservan los valores positivos históricamente asociados a la práctica lectora y a los sujetos reconocidos como lectores legítimos, sin que tales consensos sean efectivamente cuestionados, subvertidos o presentados como objeto de crítica. Predomina, por tanto, en el corpus de textos humorísticos analizados, la crítica hacia las prácticas consideradas inadecuadas y hacia los sujetos percibidos como ajenos a las representaciones socialmente validadas y compartidas de lo que significa ser lector y de lo que debe ser la lectura. Finalmente, se espera que este análisis sobre la regularidad de lo que se enuncia acerca de la lectura en el ámbito humorístico —similar a lo que ocurre fuera de él— contribuya a la crítica de la apropiación sesgada y elitista de la lectura para fines que no buscan promoverla efectivamente como un derecho universal. Leer constituye un valor social y cultural fundamental. Es en defensa de este valor que resulta indispensable denunciar los usos que se alinean con las ideologías meritocráticas y elitistas, las cuales impiden a la mayoría ejercer la lectura como un derecho, gozar de sus prácticas de mayor prestigio y beneficiarse del reconocimiento social y cultural. Al producir humor en torno a la lectura, se vuelve preciso elegir con rigurosidad tanto los blancos como los fundamentos. Se confía en que esta tesis constituya un aporte en esa dirección.
Implementação de um ambiente de verificação funcional UVM em Python aplicado ao fluxo de design digital SKY130
(Universidade Federal de São Carlos, 2026-07-03)
Soares, Marcelo Rodrigues
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Menotti, Ricardo
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https://lattes.cnpq.br/2509766431540422
;
https://orcid.org/0000-0002-7010-5030
The democratization of integrated circuit development enabled by open-source tools still finds one of its main obstacles in functional verification. This work investigates the feasibility of a Python-based verification flow applied to advanced stages of digital design, including functional coverage, structural code coverage, post-layout simulation, and power estimation. To evaluate this approach, a complete verification environment was developed for a serial communication controller widely used in embedded systems, using an open integrated circuit manufacturing technology as the reference platform. The results demonstrate that the proposed approach is capable of validating the design across different abstraction levels while achieving high coverage and producing consistent power consumption estimates. The experiments indicate that the integration of the Python ecosystem with open-source tools represents a viable, accessible, and sufficiently robust alternative for research, education, and integrated circuit development.
Percepção discente de licenciandos da pedagogia para a inclusão escolar de crianças com TEA
(Universidade Federal de São Carlos, 2026-07-03)
Ferreira, Maria Vitória Santos
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Pedro, Ketilin Mayra
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http://lattes.cnpq.br/0991868156805558
This study aimed to analyze the contributions of initial teacher education in Pedagogy in preparing educators for pedagogical practice with students with Autism Spectrum Disorder (ASD). Grounded in the observation that initial teacher training still presents significant gaps in preparing educators to act within inclusive contexts, this research sought to identify the formative experiences, perceived challenges, and student suggestions to improve this process. The investigation adopted a qualitative, exploratory approach, utilizing an electronic questionnaire with open- and closed-ended questions administered to 49 undergraduate students at a Higher Education Institution in the State of São Paulo. Data analysis, conducted through content analysis, yielded eight thematic categories: “Academic profile and formative experiences”; “Initial training on ASD and Inclusive Education”; “Integration of theory and practice”; “Knowledge and use of pedagogical strategies”; “Conceptions of inclusion and schooling”; “Faced and perceived challenges”; “Feelings about teaching readiness”; and “Suggestions for teacher education.” The results indicated that, although inclusion is valued by future teachers, initial training still offers limited depth on ASD, demonstrates weak integration between theory and practice, and insufficiently addresses the affective and ethical dimensions of teaching. Furthermore, undergraduates reported feelings of insecurity and unpreparedness regarding the demands of inclusion, yet demonstrated a willingness for continuous learning and provided valuable suggestions for course enhancement. Recommended actions include strengthening the curriculum with dedicated courses, embedding inclusion cross-curricularly, encouraging practical workshops and interdisciplinary partnerships, and expanding experiences in real-world inclusive settings. It is concluded that ensuring initial teacher education aligned with the principles of equity and inclusion is an urgent and essential challenge for building democratic and humanizing schools. This study provides insights for discussions on teacher education policies and points toward pathways for future research in the field.
Obtenção de chapas heteroestruturadas de Cu/Nb com propriedades mecânicas e funcionais otimizadas: fase 2
(Universidade Federal de São Carlos, 2026-07-04)
Magalhães, Danielle Cristina Camilo
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https://lattes.cnpq.br/5486724956564584
Otimização da biossecagem pulsante da biomassa de laranja em leito fixo
(Universidade Federal de São Carlos, 2026-07-06)
Freitas, Cauê Zenatti Fernandes de
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Maia, Gustavo Dias
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http://lattes.cnpq.br/3804133304643228
This study evaluated the effects of intermittent air flow on the thermal development and moisture removal during the biodrying process, aiming at the valorization of industrial biomass. The experiments were carried out in a fixed-bed bios drying experimental unit, with monitoring of bed temperature, air flow rate, and mass loss. The results demonstrated that increasing the air flow rate enhanced mass transfer and water removal from the material; however, its effect was directly related to the initial conditions of the system, such as the level of biological activity. It was observed that higher air flow rates did not necessarily result in greater drying efficiency, highlighting the importance of balancing heat transfer, moisture removal, and microbial activity. Furthermore, the analysis of the experiments indicated that biological heat generation, even from native microorganisms, has the potential to sustain the thermal conditions of the process. Therefore, it is concluded that bios drying presents potential as a sustainable alternative for the pre-treatment of orange bagasse, contributing to biomass moisture reduction and expanding its possibilities for energy applications.
Tecnologias da indústria 5.0 aplicadas à cadeia do biometano: potencializando a transição energética e o desenvolvimento socioeconômico no Brasil
(Universidade Federal de São Carlos, 2026-07-06)
Nogueira, Letícia Requena Ruiz
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Horta, Antonio Carlos Luperni
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http://lattes.cnpq.br/5923938048634505
;
https://orcid.org/0000-0002-3042-0351
The global energy transition landscape demands the mitigation of greenhouse gas emissions and the consequent diversification of the fuel mix. Currently, biomethane stands out as a strategic solution obtained through biogas purification. However, the biomethane industry faces regulatory and economic challenges that limit its competitiveness against fossil alternatives. In this context, this work aimed to evaluate the technical, economic, and environmental feasibility of biomethane production from municipal solid waste in the municipality of São Carlos (SP). The present study was carried out within the Industry 5.0 framework, a paradigm that integrates advanced automation and digital technology not only to increase productivity but also to ensure that industrial development is guided by sustainability, resilience, and social well-being. The purification process was simulated using Pressure Swing Adsorption (PSA) technology, aiming for compliance with ANP Resolution No. 886/2022 for vehicular use. The findings demonstrated that the system achieves high selectivity, corroborated by an economic analysis that confirmed the venture's viability through positive financial indicators. Although some sustainability indicators reveal opportunities for future optimization, the consolidated analysis points out that integrating digital and sustainable technologies, grounded in Industry 5.0, transforms waste management into a strategic asset for the energy transition and socioeconomic development in Brazil.
Avaliação de custos acerca da transição de eficiência energética em transformadores de distribuição: um estudo comparativo entre as tecnologias de núcleo empilhado e jencore
(Universidade Federal de São Carlos, 2026-07-06)
Tagliarini, Bruno
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Pizolato Junior, José Carlos
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http://lattes.cnpq.br/4338949783568483
;
https://orcid.org/0000-0002-3372-7092
;
http://lattes.cnpq.br/4610884326389037
The contemporary scenario of energy transition and the search for sustainability has intensified the demand for more efficient transformers, given that the efficiency of these devices directly affects electrical losses in distribution networks. In light of the imminent change in manufacturing guidelines established by Brazilian regulatory bodies, which mandate the transition of energy distribution transformer efficiency classes, a problem arises regarding the impact on manufacturing costs for Brazilian manufacturers. This study is justified by the need to understand the resulting financial increase, aiming to guide a national company to maintain market competitiveness while balancing production costs and regulatory requirements. The general objective is to analyze the budgetary impact of the transition between efficiency classes “C” and “B” in the production of 45 and 75 kVA distribution transformers, by comparing two distinct types of ferromagnetic cores: stacked and jencore. The methodology consisted of electromechanical design utilizing spreadsheet calculation tools and a quantitative cost assessment based on the direct production cost (CDP), accounting for materials and labor in the production processes. The study identified that the transition to Class B using a stacked core proved to be more viable for the 75 kVA power transformers, whereas the jencore technology is more advantageous for the 45 kVA equipment. The increase in production cost for Class B transformers ranged between 17.27% and 35.29%, with silicon steel being the raw material with the highest financial impact on the transformer.