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Predição da estabilidade a pequenas perturbações em sistemas de energia elétrica: uma abordagem considerando as incertezas da geração eólica
(Universidade Federal de São Carlos, 2025-09-22)
Kernbichler, André Mirandez
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Fernandes, Ricardo Augusto Souza
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https://lattes.cnpq.br/0880243208789454
;
https://orcid.org/0000-0003-2361-6505
;
Fernandes, Tatiane Cristina da Costa
In the current context, where the demand for sustainable energy sources with low environmental impact is increasing, wind power generation plays a prominent role. However, the high penetration of this energy source imposes new challenges to the operation of Power Systems, particularly involving small-signal stability and the behavior of interarea electromechanical oscillation modes. These challenges become even more critical due to the need for real-time assessment of these modes, which can be supported by Phasor Measurement Units and analytical techniques capable of handling the variability and uncertainty inherent in renewable generation. In this context, this work aims to develop a methodology for small-signal stability prediction in systems with high wind power penetration, using machine learning techniques with a focus on decision trees. This approach enables stability prediction at the pre-fault instant, with low computational cost and fast processing, favoring real-time application. To achieve this, the IEEE 68-bus system was modified by incorporating approximately 40\% of wind power generation and considering variations in load, wind speed, and contingencies according to the $N-1$ criterion, thereby composing the study database. Modal characteristics were then extracted using the Prony method. Next, two approaches for critical mode classification were evaluated: a centralized approach, which aggregates data from multiple PMUs into a single predictive model, and a decentralized approach, based on local models. In both approaches, classifications were analyzed in both binary (stable or unstable) and three classes form (secure, insecure, or unstable), in order to investigate not only binary stability prediction but also the capability of providing more detailed information to the system operator. The centralized approach achieved the best performance, particularly in the three-class classification, reaching an accuracy above 96\% and without errors at critical classification boundaries, meaning without misclassifying unstable cases as stable and vice versa. The decentralized approach, although showing lower accuracy in the three-class classification, presented satisfying results in binary classification, with accuracy above 99\%, proving suitable for contexts with communication constraints or partial system failures. The results confirm the effectiveness of the proposed methodology for small signal stability prediction in systems with high wind power generation penetration, providing support for safe operation and informed decision-making under different operating conditions.
Análise preditiva e cenários futuros para manejo de resíduos gerados no tratamento de água na bacia hidrográfica Tietê Jacaré
(Universidade Federal de São Carlos, 2025-09-22)
Shiratori, Juliana Costa Leite
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Achon, Cali Laguna
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https://lattes.cnpq.br/0307406069325793
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https://orcid.org/0000-0001-5819-8089
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https://lattes.cnpq.br/3481463538017247
The management of waste from full-cycle water treatment (LTA and ALAF) is a complex problem for water utilities. This research aims to analyze the management of these wastes in WTPs located in the TIETÊ-JACARÉ Water Resources Management Unit (UGRHI 13), using strategic indicators (SIs) as a tool for predictive analysis and creation of future scenarios. To achieve the proposed objectives, a literature review was conducted to provide theoretical basis and select the most relevant indicators (SIs), a form for data collection during visits to the WTPs was developed and applied, and selected indicators were applied and analyzed. This was followed by the development of three scenarios (realistic, optimistic, and pessimistic) using the multicriteria analysis methodology. Strategic indicators were proposed and applied in WTPs. By applying predictive analysis techniques and future scenarios, it was possible to diagnose and forecast the WTPs and the situation of the water bodies in UGRHI 13, through the construction of three future scenarios (realistic, optimistic, and pessimistic). The application of the Predictive Analysis Score allowed us to visualize the impact of qualitative indicators on the volume of these wastes generated. The scenarios indicated significant variations in the final volume for the year 2035. The results also revealed a decline in the water quality of the water bodies and a lack of monitoring points in the watershed dedicated to public supply, highlighting a need for monitoring more closely related to the water quality of the receiving bodies. A set of six strategic indicators (SIs) was proposed for each waste (LETA and ALAF), three of which are common to both wastes, indirectly assessing their generation.
Desigualdades salariais por sexo nos cargos comissionados (CCE E FCE) do Executivo Federal
(Universidade Federal de São Carlos, 2025-09-22)
Iwassaki, Athaine Mayumi
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Rodrigues, Rodrigo Vilela
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https://lattes.cnpq.br/7066100737307566
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https://lattes.cnpq.br/6823105219132773
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Ferro, Andrea Rodrigues
This dissertation analyzes gender inequalities in the occupation and remuneration of Executive Commissioned Positions (CCE) and Executive Commissioned Functions (FCE) within the Brazilian Federal Executive branch. The main objective is to decompose wage and occupational disparities in order to understand the mechanisms that sustain them. A quantitative approach was adopted, using microdata from the Personnel Statistical Panel (PEP) for January 2025. The methodology is based on the Oaxaca-Blinder decomposition to break down the logwage gap between men and women into explained and unexplained components, controlling for variables of education, race/color, and hierarchical level. The results show evidence of a "glass ceiling," characterized by the decreased presence of women in high-leadership strata, and a "concrete ceiling," which more acutely restricts the advancement of Black and Indigenous women. It was found that inequality mechanisms operate in distinct ways: in CCE, the disparity arises mainly from the unequal distribution of men and women across leadership levels (explained component); in FCE, the unexplained component was prominent, suggesting the presence of institutional barriers that penalize women even when they possess equivalent observable characteristics. The study concludes that inequality in the public sector is structural and multifaceted, manifesting not only in access but also in the unequal valuation of professional trajectories, which challenges the notion of a purely formal meritocracy.
Processo de ensino da dança folclórica alemã na perspectiva colaborativa e universalista
(Universidade Federal de São Carlos, 2025-09-23)
Silva, Bruna Poliana
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Gonçalves, Adriana Garcia
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https://lattes.cnpq.br/3907378784787581
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https://orcid.org/0000-0002-5725-2001
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https://lattes.cnpq.br/5748663536697045
Folk dance is a cultural expression that plays an important role in shaping a people’s identity and has the potential to enrich the educational process. This study aimed to develop and analyze, from a universalist perspective, the teaching process of German folk dance in a collaborative framework, valuing diversity and universalist practices. The specific objectives were: a) to verify how dance is included as a curricular component from the perspective of the participating teachers; b) to analyze the collaborative development of the German folk dance teaching process with the teachers; c) to examine the applicability of this teaching process in the perspective of diversity and universalist practices; and d) to verify the level of collaboration among teachers in the development and implementation of the teaching process. This is an intervention study, within the perspective of collaborative research, with a qualitative approach, involving four teachers (Physical Education, Music, Special Education, and the classroom teacher) and 28 students from a 5th-grade class, including one with autism spectrum disorder. Data collection included interviews, classroom observations, analysis of teacher collaboration in planning and implementation, as well as records of the development, implementation, and evaluation stages. Three planning meetings and one evaluation meeting were conducted, culminating in the implementation of 11 interdisciplinary lessons in Geography, Arts, Music, and Physical Education. These lessons were observed by the researcher, recorded in video and field notes, and concluded with a presentation for the school community. Data, analyzed through thematic analysis, were organized into four axes: diagnostic survey, collaborative planning, implementation, and evaluation. German folk dance, integrated into the curriculum in a collaborative and interdisciplinary way, was recognized as a legitimate and enriching content, capable of promoting meaningful learning, broadening student participation, and fostering inclusion. Strengthening of belonging, engagement, and the integration of cultural, motor, and social content were observed. Three central themes emerged: Dance as curricular content, highlighting its formative potential and cultural value; Planning and implementation, marked by interdisciplinary articulation and teacher collaboration; and Evaluation, which emphasized inclusion as a natural outcome of universalist planning. Teacher collaboration was characterized by joint decision-making, flexibility, and adaptation to student needs, although greater integration across disciplines remains a challenge. External evaluators confirmed pedagogical coherence, methodological clarity, and diversity of strategies as strong points. Conclusion: the developed model proved feasible and replicable, serving as a reference for inclusive, culturally meaningful, and universalist-aligned educational practices.
Estudo sobre a ocorrência de fraturas de chapas metálicas no processo de conformação incremental com o emprego de análises numéricas por elementos finitos.
(Universidade Federal de São Carlos, 2025-09-23)
Santos, Paulo Henrique Silva
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Evangelista, Sérgio Henrique
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https://lattes.cnpq.br/1610397432103491
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https://orcid.org/0000-0003-3437-7378
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https://lattes.cnpq.br/2460647394885091
The mechanical forming of thin metal sheets is a growing technology that is well suited to meeting the industry's need for parts with complex geometries and low manufacturing costs. To manufacture such parts, a number of processes are being studied and developed, such as machining, die and punch forming, and incremental forming. In incremental forming with thin sheets, the process is characterized by the movement of a tool with a spherical or semi-spherical tip with a trajectory programmed by CNC logic in order to follow a predetermined path on the surface of a sheet with the imposition of incremental plastic deformations until the programmed profile is formed. The purpose of the incremental process is to enable the manufacture of parts with a wide variety of geometries and profiles without the use of dies and punches, which reduces costs and promotes the rapid manufacture of prototype parts. Stresses and deformations are adjusted based on machine parameters such as feed speed, tool rotation, lubrication, and cooling, for example. This study investigated the influence of the tool rotation speed parameter on the incremental stamping (EI) process based on the forming limit curve (FLC) diagrams using the criteria of deformation trajectory and final deformation state, in addition to analyzing thicknesses, stamping depth, and triaxiality of stresses. For the analyses, numerical experiments were performed in the ABAQUS® program using the finite element method with the properties of the physical experiment available in the article by Magalhães, D., et al., (2025), in addition to being implemented with and without the ductile damage model. The material implemented was an aluminum sheet with a geometry of 55 x 55 x 1 mm of the AA1050/AA7050 aluminum multilayer hybrid material produced by accumulated rolling. The results showed that tool rotation had little influence on the criteria evaluated, as did friction and density in the cases tested, but differences were found in the results with and without the ductile damage model. In addition, the results showed that the triaxiality of stresses is not constant over time and that there is a triaxiality gradient when analyzing at a single point in time.
Relations between Industry 4.0 and Lean Six Sigma: Analysis of Big Data Analytics and Organizational Factors
(Universidade Federal de São Carlos, 2025-09-24)
Gaeta, Rafaela Pereira
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Lizarelli, Fabiane Letícia
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https://lattes.cnpq.br/4525431419326559
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https://lattes.cnpq.br/2129407158459687
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Toledo, José carlos de
Industry 4.0 has profoundly transformed the production environment, imposing new challenges on organizations, such as the management of large volumes of data, the need for mass customization, and the pursuit of greater operational efficiency. In this context, the integration between Big Data Analytics (BDA) and Lean Six Sigma (LSS) emerges as a strategic pathway to enhance continuous improvement, promote evidence-based decision-making, and sustain organizational performance. The main objective of this article is to investigate the impact of BDA capabilities, subdivided into technological and managerial, on LSS efforts, while also examining whether LSS acts as a mediator between BDA and organizational outcomes (financial, operational, and quality). The moderating roles of data-driven culture (DDC) and top management support (TMS) in the relationship between BDA and LSS are also analyzed. The research was conducted in two stages. First, a Systematic Literature Review (SLR) was developed, which revealed that although scientific production on the topic is increasing, it remains recent and predominantly conceptual. The SLR highlighted BDA as the technology with the greatest impact on LSS by providing real-time data and advanced analytics for tools such as SPC, VSM, Poka-Yoke, and VoC. It also identified that organizational factors such as leadership, culture, and training are critical to the successful integration of LSS and Industry 4.0. In the second stage, a survey was conducted with 184 professionals from the Brazilian manufacturing industry, analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM). The empirical results demonstrate that managerial BDA capabilities exert a positive and significant effect on LSS efforts, whereas technological capabilities alone do not produce a relevant impact. It was further found that LSS acts as an indispensable mediator for BDA to contribute to operational and quality performance, with no direct impact on financial performance. Conversely, neither DDC nor TMS showed significant moderation. These findings extend the literature by providing novel quantitative evidence in a developing country, demonstrating that the value of BDA does not lie in technological infrastructure itself, but in its capacity to be translated into continuous improvement practices mediated by LSS. From a managerial perspective, the results reinforce the importance of investing in managerial analytics capabilities, strategically aligned with LSS, in order to transform data into sustainable performance gains.
Ensino de libras como língua adicional: estratégias e recursos didáticos
(Universidade Federal de São Carlos, 2025-09-25)
Ribeiro, Maria Clara Gandini
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Silva, João Paulo da
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https://lattes.cnpq.br/6111069189059770
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https://orcid.org/0000-0003-0474-435X
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https://lattes.cnpq.br/3184692124687827
The objective of this study is to analyze the teaching resources and strategies employed in a Brazilian Sign Language (Libras) as a second language course for hearing students at a university in the state of São Paulo, Brazil. More specifically, the study examines how these resources contributed to the acquisition of basic Libras by hearing students with no prior knowledge of the language, as determined by the instructor during the first class. This study draws on previous research on the teaching and learning of Libras in formal educational settings, highlighting the role of different resources in the acquisition of a visual-spatial language, with particular emphasis on SignWriting as one of the resources that support language acquisition (LEITE; MCCLEARY, 2009; BLANC, 2022). The methodology adopted was based on Leite and McCleary (2009), who conducted a diary-based study observing classes in Libras as a second language taught by deaf instructors at the basic, intermediate, and advanced levels. The present study focuses exclusively on the basic level. The analysis of the teaching materials indicated that the use of multiple teaching resources plays an important role in promoting more effective language acquisition.
Modelagem de tempo de falha acelerado para sistemas reparáveis considerando fragilidade e diferentes funções de aceleração
(Universidade Federal de São Carlos, 2025-09-25)
Pereira, Edilenia Queiroz
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Gonzatto Junior, Oilson Alberto
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https://lattes.cnpq.br/7365405141909374
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https://orcid.org/0000-0002-5447-3044
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https://lattes.cnpq.br/5581116134666021
Reliability analysis in accelerated life testing aims to understand and anticipate the behavior of systems subjected to intensified stress conditions, enabling the estimation of their durability under normal usage conditions. In this context, acceleration functions play a central role, as they describe how stress affects the time to failure. The main objective of this thesis is to investigate, study, and propose acceleration functions that enhance the models’ ability to capture complex relationships between stress and response. To this end, we adopt the context of multiple repairable systems under the assumption of minimal repair, where failures follow a Non-Homogeneous Poisson Process (NHPP) with a baseline intensity function governed by a Power Law Process. The modeling also incorporates unobserved heterogeneity through a frailty term, capturing random effects that influence system performance over time. Model development was carried out in several stages. Initially, an exponential accelerated failure time model with weighted Lindley frailty was proposed and compared to a model with gamma frailty. Next, the scope of acceleration functions was expanded to include the classical forms: Arrhenius, Eyring, and Inverse Power, in comparison with the Exponential form. This methodological extension resulted in eight models: four without frailty and four incorporating gamma frailty. Subsequently, two new acceleration functions were proposed, Exponentiated Exponential and Exponentiated Eyring, aiming to provide greater flexibility in modeling and broaden the potential for application in different accelerated stress scenarios, overcoming limitations of classical forms. Finally, two additional models were developed by combining these new functions with the inclusion of gamma frailty. Parameter estimation for all proposed models was conducted under a frequentist approach, through the construction of the likelihood function and the derivation of maximum likelihood estimators, along with their asymptotic confidence intervals obtained via numerical methods. In all cases, the performance of the estimators was evaluated through a simulation study that covered various scenarios and acceleration levels, and all models yielded satisfactory results. The applicability of these models was illustrated with practical examples involving multiple systems and varying stress levels, highlighting the relevance of these acceleration functions for reliability analysis in accelerated life testing.
“Me ajuda a olhar!”: a qualidade da escola pelas crianças
(Universidade Federal de São Carlos, 2025-09-26)
Vasconcelos, Beatriz Nogueira Marques de
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Nardi, Letícia
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Santos, Luiza de Oliveira
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Almeida, Luana Costa
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https://lattes.cnpq.br/4388129281398361
Este artigo explora quais os sentidos que as crianças constroem sobre a qualidade da escola. O objetivo principal é investigar a visão das crianças sobre a qualidade da escola e os sentidos que elas associam ao ambiente escolar. Reflete-se sobre a qualidade social da educação a partir dos trabalhos de Silva, Bertagna et al. Sordi, Bertagna y Oliveira, enquanto para a metodologia e análise das ações com as crianças fundamenta-se em especial na perspectiva histórico-cultural. Utilizam-se também dispositivos de criação da pedagogia do cinema com base em Migliorin e Pipano e Bergala. Os resultados mostram que a qualidade da escola, na perspectiva das crianças, está associada a experiências pedagógicas diversificadas, boas relações humanas e ambientes que promovem o brincar, a ludicidade e o convívio social. Notou-se também uma distinção entre as experiências positivas e as negativas, com alguns alunos expressando descontentamento com a escola. O estudo conclui que a percepção da qualidade escolar para as crianças é multifacetada e está ligada tanto às atividades planejadas quanto aos acontecimentos cotidianos. As contribuições das crianças revelam uma compreensão complexa da vida escolar, destacando a importância do movimento de escuta e avaliação da qualidade da escola que a elas é destinada.
Comportamento e capacidade resistente de vigas celulares em aço de alta resistência
(Universidade Federal de São Carlos, 2025-09-26)
Pazin, Vítor Augusto
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Ferreira, Felipe Piana Vendramell
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https://lattes.cnpq.br/5933034803347448
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Nardin, Silvana de
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https://lattes.cnpq.br/5587716781980132
Steel cellular beams are characterized by profiles with sequential circular openings in the web, resulting in structural elements capable of spanning large distances, providing greater flexural stiffness, and enabling faster construction. Worldwide, studies on cellular beams are largely limited to normal strength steels. In Brazil, research on this type of beam is scarce and relatively recent. Thus, the use of high-strength steels, with yield strength exceeding 460 MPa, in cellular beams remains unexplored. The application of high-strength steels contributes to sustainability due to the reduction of the carbon footprint. Although their use in cellular beams is attractive from both structural and sustainability perspectives, such steels are not addressed by NBR 8800 (ABNT, 2024). The same limitation applies to cellular beams. This research aims to investigate the influence of steel strength variation on the failure modes and structural behavior of high-strength steel cellular beams under simply supported conditions. For this purpose, cellular beams were modeled using the ABAQUS® software, and the results were compared with the design procedures of BS EN 1993-1-13 (ECS, 2024). Given the lack of experimental data on high-strength steel cellular beams, the numerical model validation was conducted in two stages: considering high-strength steel solid-webbed beams and cellular beams made of normal strength steel. The sensitivity analysis of geometric imperfections and residual stresses in high-strength steel cellular beams showed that the influence of residual stresses decreases as steel strength increases. Moreover, the results indicated that the residual stress model accounting for the manufacturing process of normal strength steel cellular beams can be effectively applied to describe residual stresses in high-strength steel cellular beams. The parametric study demonstrated that increasing steel strength may alter the failure mode, as numerical models exhibiting interaction between local and global instabilities may develop only global instabilities as steel grade increases. The use of high-strength steels proved more relevant for less slender cellular beams, in which local failure modes governed the load-bearing capacity. For slenderer beams, effectiveness was reduced, as the increase in resistance capacity was often marginal compared to the gain associated with the higher strength steel. Furthermore, the use of reduced web-posts due to closely spaced openings, combined with the absence of stiffeners, may lead to the occurrence of web-post buckling under compressive stresses.
Sofrimento psíquico em estudantes universitários: prevalência e determinantes dos Transtornos Mentais Comuns (TMC) em discentes de uma universidade pública federal
(Universidade Federal de São Carlos, 2025-09-26)
Rienzo, Israel Roberto de
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Barbosa Neto, Jair Borges
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https://lattes.cnpq.br/9551566039906499
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https://orcid.org/0000-0003-3358-7613
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https://lattes.cnpq.br/3772092073679369
Psychological distress, influenced by various sociopolitical and institutional changes that impact student persistence and well-being, has become a growing challenge. The objective of this study was to calculate the prevalence of psychological distress and depression, as well as to correlate social and clinical markers with these phenomena among students at a federal public university. This quantitative, cross-sectional, and descriptive study was conducted with 174 undergraduate and graduate students at the Federal University of São Carlos (UFSCar), São Carlos campus. The prevalence of psychological distress was 77.9% and that of depression was 56.6% — measured by the Self-Reporting Questionnaire (SRQ-20) and Patient Health Questionnaire (PHQ-9), respectively — while the combined prevalence of both conditions was 78.2%. Age group and prior health history were directly related to these phenomena. Therefore, this study contributes to the development of health promotion strategies that consider the identified social markers.
Do Visko ao vício: Alessandro Boffa e a fabulação do riso em "Você é um animal, Viskovitz"
(Universidade Federal de São Carlos, 2025-09-26)
Alves, Julio
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Alavarce, Camila da Silva
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https://lattes.cnpq.br/7151151054517258
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https://lattes.cnpq.br/5620342831543169
;
https://orcid.org/0009-0005-1975-9126
Modern fables often use zoopoetics to question human conventions, distancing themselves from the explicit morality characteristic of classical models. Topics dear to contemporary society, such as social gender roles, can be addressed in a less direct manner when related to the human context. This dissertation aims to analyze the construction and function of laughter in the work You’re an animal, Viskovitz (1999), by Alessandro Boffa, a writer and biologist, based on the premise that his zoo(auto)biographical narrative uses laughter to encourage reflections on animal otherness and gender norms. Through a theoretical framework centered on Sigmund Freud and Arthur Schopenhauer's perspectives on the laughable and the comic, short stories from the work are examined based on unconscious structures, language, and subjective constitution. The analysis demonstrates that the friction between ethological precision and the projection of human conflicts generates a zone of productive incongruity, eliciting both laughter and critical reflection in the reader. The male narrator, who is repeatedly flawed, serves as a vehicle for an ironic critique of male chauvinism, narcissism, and the patriarchal system that socially and culturally structures gender relations. Philosophical, scientific, and religious reflections are added to the debate on gender. It is concluded that Boffa's literary project uses laughter as an instrument of knowledge and transformation of the reader's gaze, revealing social contradictions and existential dilemmas.
A mensagem feminista de Belén de Sárraga e seus encontros com as lideranças do feminismo brasileiro
(Universidade Federal de São Carlos, 2025-09-26)
Lotúmolo Junior, José
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Costa, Luzia Sigoli Fernandes
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lattes.cnpq.br/8110248272001369
;
https://orcid.org/0000-0001-8530-4000
;
https://lattes.cnpq.br/0491107537964268
This research has analyzed the text from the Spanish lecturer, feminist and Free-Thinker Belén de Sárraga and her meetings with Brazilian feminist leaders. By means of documental research her texts and sources of information about her meetings in Brazil have been found out that her feminist ideas were aligned with the movements around the world and Brazil. The concepts by language researchers such as José Fiorin, Eni P. Orlandi, Mikhail Bakhtin, Valentin Volóchinov and Michel Foucault, have been used. The general objective was the analysis of Belén de Sárraga’s lectures and the highlighting of her particular marks in the texts that make them identified as feminist. Another objective has been her contact with Brazilian feminist leaders such as Julia Lopes de Almeida, Josephine Stefani Bertacchi, Cecília Meireles and Bertha Lutz. The goal is to contribute with gender studies on Science, Technologies and Society Field for better comprehension of the current situation through the affirmative movements of women at the beginning of the last century.
Crescimento da macrófita invasora Hedychium coronarium J. Köenig (Zingiberaceae) sob influência de agentes estressores e biomassa seca de Salvinia auriculata Aubl.
(Universidade Federal de São Carlos, 2025-09-26)
Moura, Vitória Fabri de
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Santino, Marcela Bianchessi da Cunha
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https://lattes.cnpq.br/2356641063223397
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https://orcid.org/0000-0001-6048-0745
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https://lattes.cnpq.br/8701981787708311
Water pollution from stressors, such as emerging contaminants and agro-industrial waste, poses a challenge to aquatic ecology in urban-rural environments. These compounds alter biogeochemical cycles, affect plant communities, and can favor the growth of populations of invasive species that are more tolerant to stress. Although macrophytes play fundamental ecological roles, such as nutrient cycling and habitat provision, the uncontrolled growth of invasive macrophytes, such as Hedychium coronarium, suppresses native species and alters the structure of riparian ecosystems. This work is structured in three chapters. Chapter 1 presents an integrated review of water, macrophytes, biological invasion, and pollution, with emphasis on the effects of sodium dodecyl sulfate (SDS) and vinasse in aquatic environments, and the implications for biodiversity conservation. In Chapter 2, the population of H. coronarium in the Monjolinho reservoir (São Carlos, SP) was characterized using morphometric descriptors and biomass-volume relationships, which highlighted its plasticity and capacity to colonize degraded environments. Chapter 3 evaluated the growth of H. coronarium under controlled exposure to SDS (0.5 g L⁻¹ and 1.0 g L⁻¹) and vinasse (10% and 20%), both with and without dry biomass of Salvinia auriculata as mulch. DSS did not significantly reduce H. coronarium biomass compared to the control, but the presence of S. auriculata mulch altered growth responses, with a hormetic pattern. For vinasse, there was a significant reduction in H. coronarium biomass, and in the presence of S. auriculata mulch, biomass values remained close to those of the control. The results indicate that stressors exerted negative pressures on the growth of H. coronarium and that mulching with S. auriculata modified plant growth patterns under chemical stress conditions, demonstrating that pollutants alter the growth of this invasive species and that plant residues can interfere with the modes of action of these agents on macrophytes, with implications for management strategies and mitigation of impacts in aquatic ecosystems.
Descrição anatômica com avaliação ultrassonográfica e histológica de testículos de Leontopithecus chrysomelas (Kuhl, 1820), Callitrichidae, Primates
(Universidade Federal de São Carlos, 2025-09-29)
Lundstedt, Michelle Nogueira
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Henriques, Paloma Rocha Arakaki
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https://lattes.cnpq.br/7189347053904189
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https://orcid.org/0000-0002-7153-2421
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https://lattes.cnpq.br/0884080434320534
Habitat fragmentation limits the movement and mating of Leontopithecus chrysomelas, reducing genetic variability and increasing the risk of inbreeding. In Rio de Janeiro State, individuals accidentally introduced into an area of the Atlantic Forest pose a threat to local wildlife and public health due to the risk of hybridization and transmission of unknown pathogens. This research conducted an anatomical study of the testes of L. chrysomelas using ultrasound and histological examinations of the different stages of maturation, identifying the spermatogenic lineage present in the germinal epithelium of the seminiferous tubules. The result will be a morphological description of the testes and epididymis of this species, and the knowledge generated may support comparative studies of the reproductive ecology of neotropical primates, as well as aid in the development of techniques such as cryopreservation of testicular tissue.
Análise temporal das mudanças no uso do solo e influência na Temperatura de Superfície Terrestre na bacia do rio Revuboe, Moçambique
(Universidade Federal de São Carlos, 2025-09-29)
Matsimbe, Maria
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Americo, Carla
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https://lattes.cnpq.br/8373522066888211
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https://orcid.org/0000-0002-3553-3929
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Faria, Luiz Carlos de
This research aims to analyze land use and land cover changes and their influence on land surface temperature in the Revuboe River Basin, Mozambique, over the period from 2005 to 2023, through the application of remote sensing techniques and Geographic Information Systems (GIS). The research addresses a gap in environmental studies applied to the region, while providing technical and scientific support for sustainable territorial planning. The work is structured into three main chapters, in addition to the introduction and final considerations: Chapter I – literature review: presents a theoretical and conceptual discussion on land use and land cover changes, relating them to environmental and climatic effects, with particular emphasis on land surface temperature. It also discusses the fundamentals of remote sensing, its relevance in environmental analysis, and the contributions of different studies carried out in national and international contexts. Chapter II – Temporal analysis of land use and land cover changes: examines the temporal dynamics of land use and land cover, mapping and quantifying the main land use classes in the Revuboe River Basin for the years 2005, 2009, 2015, 2020, and 2023. Chapter III – Relationship between Land Use Changes and Land Surface Temperature: focuses on the analysis of the relationship between land use/land cover changes and land surface temperature, describing the spatial and temporal variability of surface temperature and establishing its correlation with landscape transformations. Overall, the dissertation demonstrates that land use transformations in the Revuboe River Basin, driven by agricultural expansion, urban growth, and mining activities, have caused significant changes in the surface thermal regime, contributing to the intensification of environmental degradation processes and microclimatic impacts. The findings provide technical-scientific support for decision-makers and policymakers, guiding environmental monitoring strategies, impact mitigation, and the promotion of land use practices more closely aligned with sustainability principles.
Currículo e devir do sujeito: entre a produção da subjetividade vigilantemente concorrente e a diferença
(Universidade Federal de São Carlos, 2025-09-29)
Bomfim, Juliana Cristina
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Riscal, Sandra Aparecida
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https://lattes.cnpq.br/0328618752218708
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https://orcid.org/0000-0001-5964-3586
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https://lattes.cnpq.br/6940880835496541
The present research sought to understand the dynamics of the conditions of possibility and historical contingency, experienced between the years 2006 and 2023, which engendered the transformations of the curricular structure of the in-person Bachelor's degree in Pedagogy of the largest unit of UEMG: the unity of Passos, examining to what extent the virtual connection between neoliberal governmentality and education was propagated in the PPC of the Pedagogy course and which discourses are supported as truths and to what extent these transformations are crossed by the relation betweenpower, subjectivity and difference. The corpus of the analysis was constituted by the PPC, published between the years 2006 and 2023, considered by me as one of the privileged artifacts, for being dealing with documents that were elaborated before and after the estadualization of UEMG. I cast, therefore, some looks at the curriculum of the Pedagogy course, academic unit of Passos and take as inspiration the production perspective of the French philosopher Michel Foucault and its extension to the field of the curriculum that allow me to think, the concrete world of discursive and non-discursive practices, the reality, the conditions of possibility, emergence and existence of the UEMG of Passos and the curriculum of the Pedagogy course of this unit. The analysis generated here allows me to affirm that the PPC published before the period of stateization of the university, or during the initial moment of its transition, articulate to the forms of neoliberal governmentality, that is, to an economic rationality and in this way, they operate the subjectivation of the vigilantly competing subject. In this sense, curricular policies and pedagogical projects that flirt with neoliberal governmentality can not promote the affirmation of difference and therefore it is urgent a curriculum-crossroads that makes of "thought a nomadic power", that is, a counter-revolution, that it goes through thinking the difference as a human right, that is, the right to difference, to others.
Desempenho de Trichoderma asperellum como agente promotor de crescimento de mudas de alface e sob cultivo hidropônico
(Universidade Federal de São Carlos, 2025-09-29)
Penteado, Jéssica Larissa Gonçalves
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Sala, Fernando César
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https://lattes.cnpq.br/6771975466075202
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https://lattes.cnpq.br/8526370545226913
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Sala, Fernando César
Lettuce (Lactuca sativa L.) is the most widely consumed leafy vegetable in Brazil, and hydroponic cultivation stands out for its productive efficiency and quality. Plant growth-promoting microorganisms, such as Trichoderma asperellum, have been used as a sustainable alternative to stimulate root development, nutrient absorption, and stress tolerance. This study aimed to evaluate the effect of inoculating different T. asperellum strains (URM 5911, CBMAI 1622, and BV10) on the growth of lettuce seedlings (cv. Gabriela) and their subsequent performance under hydroponic cultivation, comparing two application methods: seedling inoculation and direct inoculation in the nutrient solution. The experiments were conducted in a nursery and in a hydroponic NFT system. In the nursery phase, inoculation was carried out at 7 and 25 days after emergence, with assessments of root length, shoot growth, and biomass. In hydroponics, plants derived from previously inoculated seedlings and plants inoculated directly in the nutrient solution were evaluated at different cultivation periods. The results demonstrated that the fungus effects were dependent on the strain, the application method, and the cultivation time. In the nursery phase, strain URM 5911 stood out by increasing total weight and root biomass, conferring greater seedling vigor. In hydroponics, during the early growth period, inoculated seedlings showed advantages in root length and total biomass, whereas at the end of the cycle, inoculation via nutrient solution favored shoot biomass production and total weight. Nevertheless, seedling inoculation maintained superior performance for root dry mass. It can be concluded that both application methods present specific advantages: seedling inoculation favors initial development and root vigor, while inoculation in the nutrient solution enhances aerial biomass and overall productivity. Strain selection proved decisive, with URM 5911 and BV10 showing the most consistent results, while CBMAI 1622 exhibited less expressive effects under the evaluated conditions. These findings highlight the potential of T. asperellum as a bioinput for promoting growth in hydroponic lettuce systems.
Padrões de integração territorial na Região Metropolitana de São José do Rio Preto
(Universidade Federal de São Carlos, 2025-09-29)
Rocha, Luciani Maria Vieira
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Castro, Carolina Maria Pozzi de
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https://lattes.cnpq.br/2178910002833930
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https://orcid.org/0000-0002-1828-7615
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https://lattes.cnpq.br/2665625897264868
São José do Rio Preto, a city of 480,000 inhabitants in the interior of São Paulo, is the seat of the newly created Metropolitan Region comprising 37 municipalities whose main economic activity is sugarcane agroindustry, and which depend heavily on the hub city in all areas of the economy. There is regional inequality in development and population growth: while the hub city and its surroundings have seen significant population gains, more distant cities have suffered a decline in population. The phenomenon of urban expansion in São José do Rio Preto has been considered dispersed and exclusionary since the last decades of the 20th century, and, according to more recent studies, continues to occur in the same way. This research is dedicated to a study on a local scale, focused on the urban structure of the hub city and its surroundings, and on a regional scale, bringing up contemporary issues such as the new dynamics imposed by the creation of the Metropolitan Region of São José do Rio Preto, taking it as a case study. On a regional scale, the results point to the expansion of sugarcane cultivation as an important factor in changes in environmental, economic, and urban dynamics, promoting a decline in productive diversity and in the capacity of municipalities to offer jobs and services that meet the needs of their inhabitants. The municipalities were grouped according to patterns based on their degree of regional integration, demonstrating that distance, rural productive diversity, the presence of manufacturing industry, and social housing are important factors for the development of small municipalities. The dependence of municipalities on the hub city establishes a significant pendulum effect in an extensive migration zone, resulting in dispersed urbanization in the region. At the local level, the results show sprawling occupation, with the creation of urban voids; urban fragments in rural areas; and socio-spatial segregation in the municipality and its neighbors. The appreciation of land in the process of urban expansion in Rio Preto and neighboring cities was evident, as was the movement to increase the value of already consolidated subdivisions, where vacant lots or remaining plots are the subject of real estate speculation. Faced with a scenario of a territory taken over by the advance of sugarcane cultivation and the installation of sugar and alcohol mills, the fight against regional inequality must seek innovative strategies, identifying potential economic activities that can bring development to small municipalities.
Obtenção de chapas heteroestruturadas de Cu/Nb com propriedades mecânicas e funcionais otimizadas
(Universidade Federal de São Carlos, 2025-09-30)
Magalhães, Danielle Cristina Camilo
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https://lattes.cnpq.br/5486724956564584