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Mudanças no uso e cobertura do solo e seus impactos na erosão hídrica e no potencial natural de erosão na sub-bacia do córrego Santa Maria do Leme
(Universidade Federal de São Carlos, 2026-07-29)
Landgraf, Isabely Sanches
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Araujo, Mélory Maria Fernandes de
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http://lattes.cnpq.br/8882512834751864
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Santos, Franciane Mendonça
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http://lattes.cnpq.br/5344692835119505
This study analyzed water erosion susceptibility and Natural Erosion Potential (NEP) in the Santa Maria do Leme Stream watershed, located in São Carlos, São Paulo, Brazil, considering land use and land cover changes between 2014 and 2024. The research aimed to evaluate soil loss potential through the application of the Revised Universal Soil Loss Equation (RUSLE), combined with geoprocessing techniques, temporal land use analysis, and assessment of Permanent Preservation Areas (PPAs). Environmental and geospatial data were used, including a Digital Elevation Model generated from ALOS/PALSAR satellite data, pedological information from IBGE, climatic data from INMET, and land use and land cover maps from the MapBiomas platform. Based on these data, the RUSLE factors were estimated: rainfall erosivity, soil erodibility, relief, cover and management, and conservation practices. PPAs were also delimited according to the Brazilian Forest Code, considering 30-meter buffers for watercourses and 50-meter buffers for springs. The results showed significant land use changes over the analyzed decade, with the expansion of urbanized areas and mixed-use mosaics to the detriment of pasture areas and sugarcane cultivation. The RUSLE factors indicated that water erosion in the watershed is strongly associated with anthropogenic changes, especially the reduction of vegetation cover and the expansion of more intensive land uses. The generated maps indicated a predominance of soil losses classified as slight to moderate, with punctual occurrences of areas classified as moderate to high susceptibility. In contrast, the NEP results remained relatively stable between 2014 and 2024, with a predominance of the very low class, demonstrating that natural factors alone do not represent high erosive fragility in the watershed. In PPAs, the low NEP and soil loss values reinforced the importance of vegetation in soil protection, reduction of surface runoff, and conservation of water resources. Therefore, the integration of geotechnologies, temporal analysis, and environmental modeling through RUSLE proved to be efficient for identifying areas susceptible to water erosion and supporting environmental planning, territorial management, and PPA conservation actions.
Resposta autonômica cardíaca durante e após exercício máximo é preservada em adultos jovens fisicamente ativos com COVID longa
(Universidade Federal de São Carlos, 2026-07-29)
Lima, Marco Antonio de
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Pereira, Guilherme Borges
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http://lattes.cnpq.br/0159911069166581
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https://orcid.org/0000-0002-5295-6229
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http://lattes.cnpq.br/2444405525040960
Long COVID (LC) is a condition that generally manifests within three months after acute SARS-CoV-2 infection, with symptoms persisting for at least two months and without an alternative diagnostic explanation. Evidence suggests that alterations in the autonomic nervous system (ANS) may contribute to manifestations such as fatigue, palpitations, exercise intolerance, and post-exertional malaise. Heart Rate Variability (HRV) is a widely used non-invasive method for assessing autonomic modulation and its responses to the physical stress imposed by cardiopulmonary exercise testing (CPET). The present study aimed to investigate the autonomic response of individuals with LC during and after CPET using linear and nonlinear HRV analyses, comparing them with a control group (CON) previously infected with SARS-CoV-2 but without persistent symptoms. Thirty-eight physically active young adults aged 18 to 40 years participated in the study: 18 with LC and 20 previously infected controls without persistent symptoms. Analyses were performed at nine time points: rest, peak exercise, immediately after exercise, and at 3, 5, 10, 30, and 60 minutes and 24 hours after the test. This was an observational study with continuous recording of RR intervals using a heart rate monitor, followed by processing in Kubios HRV software. CPET was performed on a treadmill using the Bruce protocol. Analyses were conducted in RStudio (p < 0.05). After filtering the RR intervals (>95% normal beats), linear and nonlinear HRV metrics were extracted at the nine time points. Normality and homogeneity were assessed using the Shapiro-Wilk and Levene tests. Between-group comparisons were performed using Student's t-test or the Mann-Whitney test, according to data distribution. For analyses over time, three-way ANOVA was applied, followed by post hoc comparisons with Tukey adjustment or false discovery rate (FDR) control. Kaplan-Meier curves were used to estimate the time to autonomic recovery, and the log-rank test was used to compare groups. Associations between age and pNN50 were assessed using Pearson's or Spearman's correlation. The discriminative accuracy of the metrics was investigated using ROC curves and AUC comparisons according to the DeLong method. The hypothesis was that the LC group would exhibit greater vagal withdrawal at peak exercise and slower parasympathetic reactivation. No consistent overall differences were observed between the LC and CON groups for most metrics, with only isolated variations across subgroups and sexes. The findings did not support the hypothesis of autonomic impairment associated with LC in this sample, suggesting that potential effects may be subtle, compensated for by physical fitness, or not detectable by the metrics used. These findings provide data for future investigations and rehabilitation strategies.
Educação como investimento: arqueogenealogia da racionalidade neoliberal na política educacional brasileira
(Universidade Federal de São Carlos, 2026-07-30)
Rocha , Efraim Igor Santana
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Sargentini, Vanice Maria Oliveira
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http://lattes.cnpq.br/1406919572611392
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https://lattes.cnpq.br/3091840946017150
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Sá , Israel de
Esta investigación examina la constitución histórica y las condiciones de posibilidad del enunciado “educación como inversión” en la política educativa brasileña, considerándolo como una regularidad discursiva que atraviesa diferentes coyunturas históricas y reorganiza las formas de comprender, justificar y gobernar la educación pública. Se parte de la problemática del avance de la racionalidad neoliberal, vinculada a formas contemporáneas de conservadurismo, que producen nuevas estrategias de gestión, eficiencia administrativa y control institucional, redefiniendo los sentidos atribuidos a la escuela y a sus sujetos. El objetivo general consiste en analizar, desde una perspectiva arqueogenealógica, la constitución, la permanencia y las mutaciones del dispositivo educativo gerencial, identificando los procesos mediante los cuales determinados enunciados son reactualizados y pasan a orientar tanto la formulación de políticas públicas como la producción de subjetividades en el contexto educativo brasileño. Para ello, la investigación se fundamenta en los Estudios Discursivos Foucaultianos (EDF), en diálogo con la tradición francesa del Análisis del Discurso, movilizando, principalmente, los conceptos de «discurso», «enunciado», «archivo», «dispositivo» y racionalidad neoliberal. El corpus está constituido por un amplio conjunto de materialidades discursivas, que comprende documentos normativos y legales producidos desde el período de la Dictadura Militar hasta la Nueva República, además de enunciados procedentes del discurso político contemporáneo, especialmente aquellos difundidos en prácticas mediáticas y espectacularizadas relacionadas con las políticas educativas recientes. El análisis pone de manifiesto que la racionalidad neoliberal es instrumentalizada como un proceso de rearticulación discursiva capaz de actualizar mecanismos históricos de administración y normalización bajo nuevos regímenes de verdad. Asimismo, se demuestra que los programas de militarización escolar y otras políticas contemporáneas constituyen actualizaciones de este dispositivo, reorganizando las prácticas institucionales y legitimando intervenciones sobre la escuela pública mediante la producción de sujetos —estudiantes y docentes— autogestionados y permanentemente evaluables. Se concluye que la noción de «educación como inversión» se configura como una matriz discursiva que orienta las políticas públicas, redefine las finalidades de la educación y participa en la producción de modos específicos de gobernar a la población y de constituir subjetividades compatibles con las exigencias de la racionalidad neoliberal.
A verdade neoliberal em campanha: o capital humano e a produção do inimigo interno em enunciados sobre a educação pública
(Universidade Federal de São Carlos, 2026-07-30)
Rocha , Efraim Igor Santana
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https://lattes.cnpq.br/3091840946017150
A ascensão da extrema-direita no cenário político contemporâneo tem se tornado um dos principais temas de preocupação em diferentes áreas das Ciências da Linguagem, que reconhecem o perigo da reprodução do discurso de ódio — amplamente compartilhado de forma organizada e sistemática por muitos porta-vozes desse espectro político ao redor do mundo. No Brasil, esse fenômeno ganhou um novo capítulo de destaque durante as eleições municipais para a prefeitura de São Paulo (SP), realizadas em 2024, quando os debates eleitorais se transformaram em espetáculos midiáticos de violência explícita — tanto física quanto simbólica —, revelando de forma clara o atual cenário polarizado da sociedade brasileira. Diante dessa emergência, a análise do discurso político-eleitoral torna-se fundamental para compreendermos os mecanismos de disputa ideológica em jogo nas diferentes candidaturas, com destaque para Pablo Marçal (PRTB), Marina Helena (Novo), Ricardo Nunes (MDB) e Guilherme Boulos (PSOL). Os debates analisados ocorreram nos eventos promovidos pelo Estadão, Terra e pela Fundação Armando Alvares Penteado (em 14 de agosto de 2024) e pela TV Cultura (em 15 de setembro de 2024). Resultados parciais indicam que esses candidatos priorizaram temas como “trabalho”, “segurança pública” e “educação” para instrumentalizar sensibilidades como o medo, o ódio e o ressentimento, com o objetivo de convencer os eleitores a aderirem a determinadas posições ideológicas. Para essa análise, utilizamos os aportes teóricos dos Estudos Discursivos Foucaultianos (EDF), com ênfase nos conceitos saber/poder (Foucault, [1971] 2019) e formação discursiva (Foucault, [1969] 2008), a fim de problematizar os discursos proferidos durante os referidos debates eleitorais.
Armazenamento de hidrogênio em compósito Mg-Fe produzido por reofundição e limagem
(Universidade Federal de São Carlos, 2026-07-30)
Santos, Carlos Vinicius de Paes
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Leiva, Daniel Rodrigo
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http://lattes.cnpq.br/6576844591900987
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http://lattes.cnpq.br/8708708385584665
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Leiva, Daniel Rodrigo
One way to enable the use of renewable energy would be to produce hydrogen to act as an energy carrier. However, its storage is a challenge. An alternative would be to store it in a solid state using metal hydrides. Among the hydrides, MgH2 presents excellent gravimetric capacity and cyclability. However, its slow kinetics, associated with operating temperatures >300°C, limit its application. To overcome these limitations, additives are used along with processing techniques. Iron is already employed, showing remarkable performance depending on how it is incorporated. In this research, a magnesium composite with 8% at. Fe was synthesized by rheocasting. The ingot was characterized to verify the iron distribution, and the selected region was processed by manual and rotary filing. Part of the filings was exposed to air; the remainder was ground for 30, 60, and 120 minutes. The materials were characterized by XRD, SEM, DSC, TG, volumetric tests in a Sieverts-type apparatus, and TEM. Fe was heterogeneously distributed throughout the ingot, with the lower region having the highest content (average of ~10.42% wt. Fe). The material containing Fe exhibited superior kinetics and a negligible incubation period when compared to Mg; furthermore, it showed resistance to air exposure. The addition of graphite provided further improvement in kinetics, reaching a transformed fraction of approximately 0.4 in 120 minutes. The apparent activation energy was 160.91 kJ/mol and 135.65 kJ/mol for rotary-processed and manually processed Mg, respectively. For the material containing Fe, the apparent activation energy was 125.91 kJ/mol and 123.88 kJ/mol for rotary-processed and manually processed material, respectively. Therefore, the addition of Fe reduced the apparent activation energy of MgH2 desorption by ~23%.
Estudo do comportamento mecânico e formação de fases em aços 316l modificados com boro fabricados por manufatura aditiva
(Universidade Federal de São Carlos, 2026-07-31)
Lima, Luiz Henrique Quinquiolo Ribeiro de
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Otani, Lucas Barcelos
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http://lattes.cnpq.br/2519980413159984
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Gargarella, Piter
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http://lattes.cnpq.br/4641435644243916
The addition of boron to steels has been identified as a promising strategy for promoting microstructural refinement and increasing mechanical strength, particularly in materials produced by laser powder bed fusion (LPBF). However, the mechanisms responsible for these modifications are not yet fully understood. In this context, the present work investigated the effect of boron addition on alloys based on AISI 316L stainless steel produced by LPBF, comparing commercial 316L with the modified Mo3 and Mo4 alloys, both containing 0.75 wt.% boron and different molybdenum contents of 3.0 and 4.0 wt.%, respectively. Initially, the processing parameters were optimized using a Box-Behnken experimental design, resulting in the selection of 300 W laser power, 250 mm/s scanning speed, 70 µm hatch spacing, and 30 µm layer thickness. The alloys were characterized by scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), X-ray diffraction (XRD), and transmission electron microscopy (TEM). Additionally, the effect of cooling rate on microstructural evolution was evaluated by casting the alloys in a stepped mold, using different mold sections to obtain distinct cooling conditions during solidification. The cast samples were characterized by SEM, XRD, and hardness testing. The results showed that boron addition promoted grain refinement, reduced crystallographic texture intensity, and increased hardness and mechanical strength. The Mo4 alloy exhibited residual ferrite and Cr- and Mo-rich precipitates, with the Mo₃B₂ and Cr₂B phases identified by TEM. In the cast alloys, a reduction in cooling rate promoted an increase in interdendritic spacing and greater ferrite retention. The modified alloys achieved ultimate tensile strengths above 1000 MPa, mainly associated with microstructural refinement and boride formation.
Uso do método do ponto material (MPM) para análise de ruptura hipotética de uma pilha de disposição de estéril e rejeito
(Universidade Federal de São Carlos, 2026-07-31)
Maciel, José Thiago da Silva
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Souza, Tiago de Jesus
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http://lattes.cnpq.br/3445673192218333
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https://orcid.org/0000-0003-0127-337X
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http://lattes.cnpq.br/8956408929925354
The increasing adoption of filtered tailings stacks as an alternative to conventional tailings dams has intensified the need for tools capable of assessing not only the stability of these structures but also their post-failure behavior under large-deformation conditions. Although the Finite Element Method (FEM) is widely used in geotechnical engineering, its application to the simulation of mass movements is limited by significant mesh distortion during the evolution of failure. In this context, the Material Point Method (MPM) emerges as a promising alternative, allowing large deformations and the transport of the mobilized mass to be represented more consistently. This study aimed to evaluate the applicability of MPM in simulating the hypothetical failure of a Waste Rock and Tailings Disposal Stack (PDER), investigating the evolution of the mass movement and the runout distance of the mobilized material. As a case study, the Tamanduá PDER, located at the Brucutu Mine in São Gonçalo do Rio Abaixo, Minas Gerais, Brazil, was analyzed. A two-dimensional numerical model was developed using the open-source software ANURA3D, employing geotechnical parameters obtained from laboratory tests carried out on the tailings, waste rock, and foundation materials. Initially, the stability condition of the stack was verified using the design parameters. Subsequently, three hypothetical failure scenarios were evaluated, representing progressive levels of degradation of the geotechnical properties: (A1) reduction of the strength and stiffness parameters of the starter dyke; (A2) maintenance of the dyke degradation combined with a reduction in the strength and stiffness parameters of the tailings; and (A3) combined degradation of the starter dyke and waste rock, representing the most critical condition analyzed. The simulations reproduced the formation of the failure surface, the temporal evolution of displacements, the velocity fields, and the final runout distance of the mobilized mass in three representative sections of the stack. The results showed that the progressive degradation of the geotechnical properties led to a significant increase in the mobilization of the mass, with substantial increases in displacements, velocities, and runout distance, reaching approximately 162 m in the most critical condition analyzed. The results demonstrated that MPM adequately represents mechanisms associated with large deformations and post-failure behavior, allowing the continuous evolution of the mass movement to be tracked. It is concluded that the Material Point Method is a robust tool for analyzing hypothetical failures of filtered tailings stacks, enabling the estimation of the propagation of the mobilized mass and supporting risk assessment studies and the planning of mitigation measures. In addition to demonstrating the applicability of MPM to a real mining case, this research contributes to expanding its use in Brazilian geotechnical engineering by proposing an analysis methodology based on progressive degradation scenarios of the materials composing the stack.
Língua Espanhola nos Centros de Estudo de Línguas do Estado de São Paulo: análise de legislações e das Diretrizes Curriculares (2020)
(Universidade Federal de São Carlos, 2026-07-31)
Gulharo, Yara Regina
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Yokota, Rosa
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http://lattes.cnpq.br/9230517686993400
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https://orcid.org/0000-0002-1672-1430
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http://lattes.cnpq.br/8744103142016861
This master's thesis examines Spanish language teaching within the State of São Paulo's Language Study Centers (CEL SP) project, established in 1987, with a focus on the Curricular Guidelines for Language Study Centers (in Portuguese, Diretrizes Curriculares para os Centros de Estudo de Línguas) (2020). The motivation for this study is linked to the researcher's personal and professional trajectory within the context of CEL SP, as a student, intern, Spanish language teacher, and supervisor of teaching interns. The research objectives are: (1) to contextualize the publication of the Curricular Guidelines through an analysis of legislative documents regulating the CEL SP and (2) to analyze the document itself, with an emphasis on the section dedicated to Spanish teaching. This is a qualitative, documentary-based study that analyzes decrees, resolutions, and the Curricular Guidelines themselves. The study highlights that CEL SP serves as an important space for resistance and the preservation of Spanish language teaching within the São Paulo state public school system, both before and after the repeal of Law No. 11,161/2005. Analysis of the documents demonstrates that, throughout its trajectory, the project underwent various reorganizations but remained characterized by the absence of specific curricular guidelines until the publication of the Curricular Guidelines in 2020. The research indicates that the document analyzed, despite having been published in 2020, is not based on contemporary documents and guidelines, such as the BNCC (National Common Curricular Base). However, it seeks to foster a critical, plurilingual, and intercultural approach to education. Furthermore, it is possible to observe the value placed on oral communication, in alignment with the governing legislative documents.
Modelagem da informação tecnológica baseada em patentes para a inovação
(Universidade Federal de São Carlos, 2026-07-31)
Zaniro, Dênis Leonardo
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Faria, Leandro Innocentini Lopes de
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http://lattes.cnpq.br/0767710394930118
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https://orcid.org/0000-0002-8369-1315
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Quoniam, Luc
Innovation has been researched and practiced in multiple ways in recent years and, despite certain nuances, this concept has evolved beyond the simple idea of introducing something new into the economic context to reflect the complexity involved throughout the entire innovation process. The literature also indicates that innovation processes are affected by different factors and depend on the availability of technological information. The primary source of technological information for innovation comes from patent documents; however, there are two major challenges to consider. The first is that the information describing the inventions behind patents may be difficult for different audiences to understand and does not represent the full complexity of technological information which, by definition, is multidimensional. The second is that information sources that may serve as inputs for innovation are usually disconnected and involve considerable volumes of data, creating obstacles for analytical strategies that are not based on computational approaches. Furthermore, certain patent and inventive databases are paid services, hindering access for communities characterized by scarce resources. Based on this context, the main objective of this research was to model technological information aimed at innovation in such a way that, within the resulting dataset, four informational perspectives coexist inseparably: inventive, encyclopedic, scientific, and industrial. An informational architecture is proposed, guided by a reference model and constituted through the integration of databases, classification schemes, and an inventive methodology. Multiple research methods were adopted and combined, with a predominantly exploratory objective and both quantitative and qualitative approaches. Due to the volume of data, computational techniques grounded in a set of algorithms were applied. For the construction of the informational model, the following components were used: the TRIZ methodology (the Russian acronym for Theory of Inventive Problem Solving) and TRIZ effects databases; the International Patent Classification; Wikipedia and Wikidata; the Lattes Curriculum; the National Classification of Economic Activities; and the Espacenet database. As a result, the resulting dataset provides millions of potential pathways connecting researchers, new technologies, and industrial sectors in Brazil. The use cases discussed provide evidence that, by integrating fragmented data from distinct sources into a single whole, according to the proposed methodological framework, it is possible to arrive at certain inventive insights that could not easily be mapped through the simple combination of the individual parts. Specifically, regarding the scientific perspective, a certified and expanded patent database derived from the Lattes Curriculum was achieved, overcoming the unitary patent-based perspective in order to attain a broad view of inventions necessary for integration into the model. From the STS (Science, Technology, and Society) perspective, this research is part of a context shaped by social demands and market dynamics under a constructivist approach, representing only one part of a larger and unfinished system and, therefore, subject to continuous evolution. Thus, it is considered that the results obtained and their subsequent developments may contribute to strengthening the connections between research, technology, and industry in Brazil.
Memórias e processos educativos: uma análise da constituição da Comunidade Alto da Estação em Ituverava/SP – 1975–2003
(Universidade Federal de São Carlos, 2026-07-31)
Silva, Marta Soares da
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Rodrigues, Tatiane Consentino
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http://lattes.cnpq.br/8361431964064731
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https://orcid.org/0000-0002-4402-2805
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http://lattes.cnpq.br/1272211430972368
This dissertation aimed to understand which educational processes, processes of belonging, identities, and identification were constructed in the Alto da Estação Community (CAE), located in the municipality of Ituverava, São Paulo, Brazil, between 1975 and 2003. The study adopted a qualitative approach, developed through an autoethnographic-inspired perspective and grounded in hermeneutic-oriented thematic analysis. Data were constructed through semi-structured interviews with fourteen collaborators, documentary research, and field notes. The theoretical framework was primarily based on Stuart Hall, Paulo Freire, Ecléa Bosi, Jorge Larrosa, bell hooks, Cida Bento, and Oliveira et al. The analysis was organized into three thematic axes: identities, identification, and belonging; memory, stigma, and intergenerational transmission; and schooling, social practices, and educational processes. The findings indicate that identities, processes of identification, and senses of belonging within the CAE were historically constituted through community relationships, shared experiences of struggle, and forms of recognition produced within the territory. Community memories articulate experiences of stigma and pride, transforming the expression “dirty feet” (“pé sujo”) into an element of belonging and historical continuity. Educational processes emerged both through schooling, understood as a collective achievement, and through social practices developed in neighborhood relationships, rights-based mobilizations, religious activities, cultural experiences, and community life. The study concludes that the CAE was constituted as an educational territory, in which memories, identities, processes of identification, and educational processes were produced through collective experiences of organization, participation, and struggles for rights. This research contributes to the understanding of education as a social practice that extends beyond the boundaries of formal schooling and materializes in the everyday experiences of human formation lived within the community.
Otimização de parâmetros operacionais no tratamento eletroquímico descentralizado de efluente real contendo glifosato
(Universidade Federal de São Carlos, 2026-08-01)
Mandelli, Cecília Montanha
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Ruotolo, Luís Augusto Martins
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http://lattes.cnpq.br/6167735734348703
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http://lattes.cnpq.br/5876631381345673
Electrochemical treatment of wastewater is a promising alternative for reducing organic pollutant loads. Glyphosate herbicide is widely used in agriculture, and the washing of its containers generates significant volumes of hazardous wastewater. This study investigated the optimal conditions for the electrolysis of a real glyphosate-contaminated effluent, considering treatment time, energy consumption, and operational costs. The experiments were carried out using a flow-through electrochemical reactor equipped with a boron-doped diamond (DDB) anode. A factorial design was employed to evaluate the effects of current density (10–30 mA cm⁻²) and initial organic load (100–300 mg TOC L⁻¹). Total organic carbon (TOC), chemical oxygen demand (COD), and cell potential were monitored throughout the experiments. The use of a low-cost turbulence promoter improved mass transfer, increased mineralization efficiency, and reduced energy consumption, while temperature control showed minimal influence. The application of a current density of 30 mA cm⁻² provided the best balance between treatment time and energy efficiency. Predictive models were developed to estimate electrolysis time and energy consumption. Operational costs ranged from USD 1.71 m⁻³ to USD 7.09 m⁻³, with values between USD 3.55 m⁻³ and USD 4.37 m⁻³ obtained for effluents containing 300 mg TOC L⁻¹ treated at 10–30 mA cm⁻², demonstrating the feasibility of the process even under conditions of high organic load. These results contribute to the development of optimized and economically viable electrooxidation systems for the treatment of pesticide-contaminated wastewater, supporting the sustainable management of agricultural wastewaters.
A path toward 5G NR PHY acceleration: the LDPC offloading on BlueField-3 DPU
(Universidade Federal de São Carlos, 2026-08-03)
Brusse, Vlademir
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Verdi, Fábio Luciano
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http://lattes.cnpq.br/9143186843657940
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https://orcid.org/0000-0002-5455-8910
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http://lattes.cnpq.br/1620745795070108
The transition toward AI-native Radio Access Network (RAN) architectures further intensifies the demand for cloud infrastructure resources, as distributed intelligence, machine learning inference, and real-time data analytics become integral components of future RAN deployments. Containerized and virtualized network functions in Cloud RAN environments increasingly rely on hardware acceleration and workload offloading to meet the stringent latency, throughput and energy efficiency requirements of Fifth Generation (5G) Advanced and emerging Sixth Generation (6G) mobile networks. Within the 5G New Radio (NR) Physical Layer (PHY), Low-Density Parity-Check (LDPC) decoding represents a computationally intensive workload that depletes host CPU resources. While offloading to Data Processing Unit (DPU) offers general purpose core relief, it introduces systemic latency overheads. This research project evaluates an acceleration framework that offloads the 5G NR LDPC encoding and decoding pipeline from an OpenAirInterface (OAI) x86 host to an ARM-based NVIDIA BlueField-3 DPU utilizing the Arm RAN Acceleration Library (ArmRAL) over a Communication Channel. Hardware acceleration provides several benefits for 5G NR. Specialized accelerators such as Graphics Processor Unit (GPU), Field-Programmable Gate Array (FPGA), and DPU execute computationally intensive PHY functions in parallel, significantly increasing throughput while reducing processing latency to meet the stringent timing requirements of 5G. They also improve energy efficiency by delivering higher performance per watt than general-purpose CPUs. In addition, offloading functions such as LDPC decoding, Fast Fourier Transform (FFT), and beamforming relieves the host CPU, allowing it to focus on higher-layer protocol processing, scheduling, and network management. These advantages improve system scalability and make hardware acceleration a key enabler of cloud-native Open RAN deployments. In this work the ArmRAL LDPC kernels on the BlueField-3 ARM Cortex-A78AE cores are functionally correct, producing output bit-identical to the OAI software baseline as verified through Block Error Rate (BLER)–Signal-to-Noise Ratio (SNR) characterization under Additive White Gaussian Noise (AWGN) and Tapped Delay Line A (TDL-A30) fading channels, and execute competitively with the x86 software baseline. However, the host-visible per-CB Communication Channel (Comch) latency exceeds the slot budget by two orders of magnitude, producing a substantial Flow Completion Time (FCT) slowdown and energy efficiency degradation relative to the OAI software baseline across end-to-end experiments. Our results show that the bottleneck is the per-CB Comch framework overhead between the host and the DPU, rather than ARM compute capability or Peripheral Component Interconnect Express (PCIe) payload transfer, identifying host-visible Comch latency as the dominant architectural barrier to transparent lookaside PHY acceleration and quantifying its impact on FCT, throughput, and gross energy consumption relative to the OAI software baseline. Future work directions include persistent Comch contexts, Data Center Infrastructure-on-a-Chip Architecture (DOCA) Direct Memory Access (DMA)-based data paths, and slot-level OAI interfaces approaching an inline acceleration model.
Estudo sobre percepção de seguridade de pedestres na área norte do campus de São Carlos da UFSCar
(Universidade Federal de São Carlos, 2026-08-04)
Maia, Tayara Camila Edluz
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Ribeiro, Rochele Amorim
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http://lattes.cnpq.br/7245761274405860
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https://orcid.org/0000-0002-5647-8789
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http://lattes.cnpq.br/4537175646906560
Perceived safety is a relevant factor in active mobility, influencing pedestrians' experiences and the use of urban spaces. This study aimed to analyze pedestrians' perceived safety while walking in the Northern Area of the São Carlos campus of the Federal University of São Carlos (UFSCar), considering characteristics of the built environment and users' behaviors. A case study approach was adopted, involving an adapted application of the spatial assessment method proposed by Rodrigues (2024), structured around four dimensions: circulation, surveillance, maintenance, and attractiveness. The methodology included daytime and nighttime field surveys, spatial analyses using Geographic Information Systems (GIS), thematic mapping, and a questionnaire administered to the university community, yielding 221 valid responses. The results revealed differences between spatial classifications and respondents' perceptions. In the area surrounding the Community Library, although 64.7% of respondents positively evaluated pedestrian mobility infrastructure, 52.9% negatively assessed maintenance conditions. Regarding walking patterns, 52.0% reported walking in this area exclusively during the daytime, compared with 48.4% in the AT-07 area and 56.1% near the University Restaurant. On Rua dos Suindaras, 54.8% reported not walking through the area. Regarding the dimensions considered most important for improving perceived safety, attractiveness (43.90%), circulation (26.83%), and surveillance (24.39%) were the most frequently selected. The findings indicate that favorable spatial classifications do not necessarily correspond to uniformly positive perceptions of safety, highlighting the importance of integrating built-environment indicators with users' experiences. This research contributes to university campus planning by identifying spatial vulnerabilities and walking behavior patterns, providing evidence to support guidelines for improving pedestrian routes.
Recursos próprios, custos de transação e capacidade efetiva de execução orçamentária: uma análise da UFSCar
(Universidade Federal de São Carlos, 2026-08-05)
Mattos, Camilla Piai de
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Almeida, Luiz Manoel de Moraes Camargo
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http://lattes.cnpq.br/5053214724598522
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https://orcid.org/0000-0003-3066-9170
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http://lattes.cnpq.br/3065102326354114
The management of own-source revenues has become increasingly relevant in the context of federal universities, particularly in light of fiscal constraints and instability in the execution of discretionary resources. This study analyzes the management of own-source revenues at the Federal University of São Carlos (UFSCar) from 2021 to 2025, based on Transaction Cost Theory (TCT), with the aim of understanding the institutional conditions that influence the conversion of revenue collection into effective budget execution capacity. The research is characterized as a single-case study of a descriptive-explanatory nature, developed through a predominantly qualitative approach, with complementary use of quantitative data. Data were obtained through documentary analysis of institutional reports, regulations, government budget monitoring systems, and institutional records related to the operation of own-source revenue mechanisms by the Institutional Support Foundation (FAI). The results show that increased collection of own-source revenues does not automatically translate into greater spending capacity, as it remains subject to institutional mechanisms related to budget incorporation, coordination among administrative units, and constraints arising from the fiscal environment. The analysis demonstrates that revenue collection, budget authorization, and execution operate according to different temporalities, generating mismatches that increase the need for institutional coordination and adaptation. From the perspective of TCT, these elements were interpreted as transaction costs associated with the management of own-source revenues in Federal Institutions of Higher Education (IFES), related to uncertainty, procedural requirements and stages, and the continuous need for coordination among different administrative levels. As an applied outcome of the research, a budget planning, monitoring, and replanning instrument developed within UFSCar’s Office of Administration and Budget Coordination was analyzed and understood as an organizational mechanism aimed at strengthening institutional coordination and supporting budget execution monitoring. It is concluded that the main obstacles to the use of own-source revenues do not arise from insufficient revenue availability, but from the institutional conditions that mediate their incorporation and execution within the federal public budgeting system.
Reflexões sobre o discurso médico: o conceito de dor crônica, suas implicações e o "mediquês"
(Universidade Federal de São Carlos, 2026-08-06)
Goraieb, Sandra Miranda
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Baronas, Roberto Leiser
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http://lattes.cnpq.br/4613001301744682
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https://orcid.org/0000-0003-0758-0370
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http://lattes.cnpq.br/1325750176115604
This work is a dissertation (Master in Linguistics degree) that deals with certain aspects of medical discourse regarding chronic pain, addressing topics that range from Popular Linguistics (Gonçalves, 2021; Baronas, 2021; 2022), whether in the conceptualization of Pain within the field of Health Sciences or in the use of what is referred to here as “doctor-speak” (“mediquês”). We explore some meanings of the word “pain” from the therapists’ point of view, using Eduardo Guimarães’s Event Semantics theory (2002). We examine aspects of medical ethos, particularly concerning placebo and nocebo effects, as proposed by Dominique Maingueneau (2020; 2022). This analysis of ethos also extends to the realm of medical discourse in digital environments. We discuss the ambiguity of the diminutive—so present in discursive practices in the health field—in relation to supposed humanization and the maintenance of power asymmetry between speakers from a Foucauldian perspective (Foucault, 2008; 2019; 2021). We conclude that Linguistics, as a science, can contribute to improving communication between parties within the therapeutic alliance, despite the evident discursive fractures derived from diverse methodologies and epistemes.
Adolescências em privação de liberdade e projetos de vida (em) possibilidades
(Universidade Federal de São Carlos, 2026-08-06)
Silva, Glaucio Aparecido
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Cardoso, Priscila Carla
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http://lattes.cnpq.br/8651213306943542
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https://orcid.org/0000-0002-8005-5655
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Fonseca, Débora Cristina
This research aimed to understand whether and how institutional perezhivaniya contribute to the (re)construction of adolescents’ life projects and to their prospects for social reintegration in cases of repeated placements within the closed juvenile socioeducational system. The study is grounded in historical-dialectical materialism and cultural-historical psychology, taking perezhivanie as the unit of analysis of the relationship between the individual and the social environment and understanding adolescence as constituted through historical, cultural, and social conditions. It starts from a critique of individualizing interpretations of repeated involvement in the socioeducational system, which are often attributed to adolescents’ choices or personal characteristics, in order to examine how institutional perezhivaniya contribute to adolescents’ conscientization and to the (re)construction of their life projects under conditions of repeated placement. The qualitative study was conducted at a Socioeducational Care Center of Fundação CASA, a state institution responsible for the care of adolescents experiencing repeated placements. Twelve adolescents participated in the study, selected according to the criteria of repeated placements and availability to participate. Access to participants occurred through the institution’s initial indication of potential participants, followed by individual invitations and the adolescents’ voluntary consent to participate; thus, the institutional indication served as the condition through which access to potential research participants was made possible. The study adopted action research as its methodological approach, combining focus groups, workshops, and individual conversations, totaling 12 sessions. In the workshops, escrevivência was used as a mediating resource and as a form of expression and production of meanings concerning the adolescents’ trajectories, institutional perezhivaniya, and future prospects. The data were analyzed through the Signification Nuclei approach (Aguiar & Ozella, 2013), seeking to apprehend the meanings produced by the adolescents and the concrete conditions in which their perezhivaniya are constituted. The findings show that the adolescents’ trajectories are marked by affective deprivation, weakened social bonds, sociocultural impoverishment, and recurrent restrictions and violations of rights—processes that precede placement and continue to shape and generate tensions within their institutional experiences. The findings also demonstrate that custodial socioeducational measures constitute a contradictory totality in which practices of control, regulation, and individual accountability coexist and come into tension with possibilities for guaranteeing rights, human development, the production of meanings, and the projection of future possibilities. Institutional perezhivaniya do not produce homogeneous effects. Rather, they constitute mediations through which social and institutional contradictions are refracted and given meaning by adolescents, potentially expanding possibilities for conscientization and future projection while simultaneously reproducing mechanisms that constrain such possibilities. Thus, this thesis argues that understanding repeated involvement in the socioeducational system requires moving beyond the exclusive attribution of responsibility to adolescents and apprehending the social, historical, and institutional determinations that shape their trajectories and the concrete conditions under which future possibilities are constructed. In this sense, the custodial socioeducational measure investigated in this study emerges as a contradictory space in which mediations with emancipatory potential coexist and come into tension with mechanisms of control and regulation, the reproduction of inequalities, and individual accountability.
“Créditos de carbono” e a noção de fórmula: funcionamento no discurso corporativo sobre sustentabilidade
(Universidade Federal de São Carlos, 2026-08-07)
Santos, Éric Alan de Azevedo
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Baronas, Roberto Leiser
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http://lattes.cnpq.br/4613001301744682
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http://lattes.cnpq.br/8901885395920647
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https://orcid.org/0009-0007-4170-9875
Emissions offsetting in carbon markets has become a central strategy in how large corporations construct their image of sustainability, and the phrase “carbon credits”, recurrent in their reports, shows signs of functioning as a discursive formula in the sense proposed by Krieg-Planque. We investigate how this phrase operates in corporate discourse on sustainability across its four constitutive dimensions, articulating the notion of formula with Maingueneau's scenes of enunciation and discursive ethos and also drawing on Orlandi's work on silencing and Paveau's on discursive virtue. The material brings together the 44 Sustainability Reports and Integrated Reports for the 2023 fiscal year, from Brazilian companies listed simultaneously on the ISE B3 and ICO2 indexes, together with media and social-movement materials; the reports follow the GRI standard, which regulates the generic scene and delimits the sayable about corporate sustainability. The analysis shows a morphosyntactically stable signifier, anchored in an economic-financial memory that, within the neoliberal discursive formation, captures “sustainability” and forecloses the meanings associated with climate justice, reparation, and degrowth; shifting from a technical-legal term in the Kyoto Protocol (1997) to an operator of corporate virtue in the ESG era, the phrase attains sectoral hegemony without becoming universal and has its controversy managed within the reports, through certifications and hierarchizations, while it erupts in the media sphere, where it is contested as “accounting fiction” and “carbon colonialism”. Within corporate discourse, the phrase reconfigures the climate crisis as a technical-managerial issue and naturalizes the continuation of the very pollution it claims to combat. It is the persistence of the form beneath the variation of scenes, from the report to media contestation, that sustains the central thesis of this work, namely that crystallization is a necessary though not sufficient condition, and that what converts “carbon credits” into a full formula is its potential for transit across heterogeneous scenes, by which the same signifier is reinscribed in antagonistic discourses without dissolving.
A docência e a institucionalização da educação híbrida no ensino superior
(Universidade Federal de São Carlos, 2026-08-07)
Dias, Danilo Augusto
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Mill, Daniel Ribeiro Silva
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http://lattes.cnpq.br/1515286597269486
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https://orcid.org/0000-0002-8336-3645
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http://lattes.cnpq.br/5349005982139589
This study investigated the institutionalization process of hybrid education in Brazilian public higher education, anchored in the epistemological framework of Inhabited Institutionalism to examine the intersection of teaching praxis and digital culture. The overall objective of this research is to understand the mutual influences between daily professional practice and the consolidation of hybrid arrangements. It analyzes the multiple impacts experienced by educators and the strategies through which these professionals re-signify and shape contemporary academic reality through their everyday interactions. To substantiate this reflection, the study sought to systematize the conceptual boundaries of hybridization, examine the training models provided by university administrations, and evaluate how organizational guidelines affect faculty identity and working conditions. Methodologically, the study adopted a fundamentally qualitative, basic, and exploratory approach, supported by multiple sources of evidence and data triangulation. The preliminary phase consisted of a rigorous systematic literature review focusing on scientific output from the last decade, alongside a thorough examination of institutional development plans from federal universities and institutes. The fieldwork expanded the empirical scope by recruiting 280 professors from all geographic regions of Brazil. Primary data were collected through comprehensive questionnaires, 17 unstructured interviews, and the facilitation of five focus group sessions. All documentary and narrative data were processed using content analysis, with a focus on extracting core meanings. The main results reveal that the integration of remote elements into in-person courses occurs in a predominantly top-down manner. This creates ceremonial facades that satisfy state requirements but fail to support the technical core of education. A severe deficiency was observed in faculty preparation, which is largely limited to instrumental training on how to use digital platforms, ignoring the vital need for digital literacy focused on didactic transposition. As an immediate consequence, educators experience a silent process of job precarization, bearing a significant increase in their out-of-class workload and a lack of specialized support. Simultaneously, faculty interventions revealed that students, despite living in an era of hyperconnectivity, lack the digital proficiency required for learning and show strong resistance to the active role demanded by active learning methodologies. Faced with this mismatch between bureaucratic norms and infrastructural shortcomings, professors frequently resort to self-directed learning and join informal networks of mutual support. Finally, the study concludes that hybrid education cannot be established merely through decrees or the simple acquisition of technology. The research asserts that the successful implementation of methodological proposals relies on the tactical and constructive insubordination of the faculty. By actively inhabiting the normative imperative, educators operate as an instituting force capable of challenging regulations, circumventing resource shortages, and reinventing the teaching profession—thereby ensuring the survival and evolution of the public university.
A institucionalização da educação a distância: um estudo sobre possíveis influências da experiência do Ensino Não Presencial Emergencial (Enpe) em universidades públicas
(Universidade Federal de São Carlos, 2026-08-07)
Silva, Verônica Correia da
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Mill, Daniel Ribeiro Silva
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http://lattes.cnpq.br/1515286597269486
;
https://orcid.org/0000-0002-8336-3645
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http://lattes.cnpq.br/7194339002461715
This research analyzed the influence of the Emergency Remote Teaching (ERT) experience on the process of institutionalizing Distance Education (DE) in Brazilian public universities. The study aimed to understand how the transformations triggered during the Covid-19 pandemic impacted the pedagogical, technological, organizational, and cultural dimensions of DE, contributing to its institutional consolidation. To this end, a qualitative approach was adopted, developed through the triangulation of a systematic literature review, document analysis, questionnaires, and semi-structured interviews with faculty members and professionals affiliated with the Federal University of São Carlos (UFSCar) and the Federal University of Lavras (UFLA), who were involved in undergraduate education during the Covid-19 pandemic. The systematic review showed that post-pandemic research on DE has focused on topics related to teacher training, digital technologies, democratization of access, infrastructure, and the impacts of the pandemic. The empirical results indicated that ERT promoted the expansion of digital technology use, strengthened virtual learning environments, and encouraged the incorporation of new pedagogical practices into academic routines. Administrative and regulatory changes were also identified, which supported the adoption of technological resources and expanded institutional discussions about this modality. On the other hand, the data revealed persistent challenges related to faculty workload, inequalities in access to technology, insufficient specific training for working in digital environments, and the persistence of cultural resistance to DE. Participants’ perceptions showed that, although some practices developed during the emergency period were incorporated into institutional routines, the consolidation of this modality still faces structural and organizational limitations. It is concluded that ERT accelerated certain pedagogical, technological, and administrative changes in the universities studied. However, these transformations were not sufficient to ensure its institutionalization. The consolidation of this modality depends on the continuity of institutional policies, the ongoing professional development of those involved, the strengthening of infrastructure conditions, and the legitimation of DE as an integral part of the academic mission of public universities.
Inteligência emocional no cuidado oncológico: perfil de cuidadores primários de pacientes com câncer
(Universidade Federal de São Carlos, 2026-08-07)
Torres, Melissa Giannina Sueros
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Miguel, Fabiano Koich
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http://lattes.cnpq.br/8404130543685490
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https://orcid.org/0000-0003-2498-692X
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http://lattes.cnpq.br/0078078235019648
Oncological care involves emotional, practical, and relational demands that may affect both patients and primary caregivers. In this context, emotional intelligence may represent a relevant resource for understanding emotions, managing emotional reactions, and facilitating interpersonal interactions throughout the caregiving process. This study aimed to characterize the emotional intelligence of primary caregivers of individuals with cancer, considering the emotional and interpersonal dimensions assessed, their relationships with sociodemographic characteristics, degree of kinship with the patient, and clinical and therapeutic variables associated with oncological care, as well as possible differences compared with non-caregivers. This was an exploratory, quantitative, cross-sectional study involving 221 participants, including 108 primary caregivers and 113 non-caregivers. A sociodemographic questionnaire and specific instruments from the Online Emotional Intelligence Battery (BOLIE) were used to assess emotional understanding, sociability, emotional regulation, and empathy. The results indicated that caregivers had higher scores in emotional regulation and the dimensions of empathy compared with non-caregivers, whereas no significant differences were observed in emotional understanding or sociability. Among caregivers, age was significantly associated only with responsiveness, while degree of kinship with the patient did not significantly differentiate the assessed dimensions. Among the clinical and therapeutic characteristics investigated, only surgery was associated with a significant difference in cognitive empathy, with higher scores among caregivers of patients who had not undergone the procedure. It is concluded that primary caregivers showed differences in some emotional and interpersonal dimensions compared with non-caregivers, particularly in emotional regulation and empathy. However, given the cross-sectional design and differences in group composition, these findings do not allow such differences to be attributed exclusively to the caregiving role.