Browsing by Issue Date, starting with "2026-05-22"

Filter results by year or month

Now showing 1 - 20 of 378

Narrativas sobre a docência na Educação Infantil: Contribuições de um grupo colaborativo para o trabalho com o senso espacial de uma professora iniciante
(Universidade Federal de São Carlos, 2026-05-22)
Santiago, Kauane Lemos
;
Ciríaco, Klinger Teodoro
;
https://lattes.cnpq.br/2947929641568853
;
https://orcid.org/0000-0003-1694-851X
;
https://lattes.cnpq.br/3366596188586503
This master's dissertation, developed within the Graduate Program in Education (PPGE) at the Federal University of São Carlos (UFSCar), in the research line Teacher Education and Other Educational Agents, seeks to understand the meanings and experiences of an early childhood beginning teacher regarding the development of spatial sense in her pedagogical practices, considering the implications of her longitudinal participation in a collaborative study group. To this end, within the context of data production and based on a qualitative research approach, a narrative interview with a beginning teacher was analyzed, focusing on her experiences and relationship with Mathematics in Early Childhood Education during her first years of teaching. The narrative analysis was grounded in the six theoretical and methodological steps proposed by Fritz Schütze (2013), identifying categories related to initial teacher education, engagement in research contexts, participation in collaborative groups, and the construction of meanings concerning Mathematics and the development of spatial sense in Early Childhood Education. In addition to the narrative interview, the study involved participant observation conducted by the researcher within the collaborative group of which the interviewed teacher is a member. The analyses revealed that the participant's professional development occurs through continuous processes of reorganizing experience, integrating initial teacher education, engagement in research contexts, participation in collective learning spaces, and pedagogical practice. The findings indicate that the development of spatial sense plays a structuring role in the pedagogical practices developed with children, guiding the organization of spaces and time, interactions, and mathematical experiences in Early Childhood Education. Thus, this research contributes to discussions on the education of beginning teachers in the field of Mathematics Education by highlighting the importance of participation in collaborative and research-oriented contexts for the construction of more reflective and intentional pedagogical practices.
Programa SAFO (Suporte Afirmativo de Fortalecimento Online): intervenção individual online para mulheres lésbicas vítimas de violência entre parceiras íntimas
(Universidade Federal de São Carlos, 2026-05-22)
Furukawa, Letícia Yuki de Araujo
;
D'Affonseca, Sabrina Mazo
;
http://lattes.cnpq.br/0381029115416584
;
http://lattes.cnpq.br/2230015905762291
;
https://orcid.org/0000-0002-1652-5261
The present research investigated intimate partner violence (IPV) among lesbian women through four complementary studies: (1) psychosocial characterization, (2) comprehension of victimization experiences, (3) development of a psychoeducational intervention (SAFO Program), and (4) feasibility analysis. Study 1 included 44 women who completed psychosocial characterization questionnaires alongside the AUDIT, CTS-2, and PCL-5 scales. The obtained data indicated that greater severity of post-traumatic stress disorder (PTSD) symptoms was associated with higher alcohol consumption. Furthermore, participants with a prior clinical diagnosis consumed significantly more alcohol. A predictive model demonstrated that alcohol consumption and sexual coercion perpetrated by a partner were significant predictors of PTSD symptom exacerbation. Study 2 involved three women with a history of intimate partner violence. All participants engaged in a synchronous remote interview. The findings indicated a difficulty in recognizing abusive situations, particularly psychological violence. Even after terminating the relationships, reported consequences included symptoms of depression, anxiety, panic, and disturbances in sleep and eating patterns. Informal support networks (e.g., friends and family) and social spaces proved essential for coping with the violence. Study 3 outlines the theoretical framework of the SAFO Program, which consists of eight sessions structured around the following phases: Welcoming; Module 1 (Psychoeducation on relationship violence and formal support); Module 2 (Psychoeducation on minority stress); Module 3 (Psychoeducation on emotion identification and support networks); and Closure. The feasibility of the SAFO Program was evaluated through a pre- and post-test design, utilizing the DASS-21, EDE-A, and PEM-LGB-BR instruments, as well as participant satisfaction measures. Data were analyzed using descriptive statistics and the Jacobson and Truax Method for a preliminary assessment of clinically significant changes. Intervention fidelity was examined by two independent observers, with inter-rater reliability estimated via Cohen’s Kappa index. The results provided initial evidence of feasibility, demonstrating high acceptability, appropriateness, implementability, practicality, and protocol fidelity. Participants reported high satisfaction with the program, highlighting the therapeutic alliance as a central element for engagement and the sharing of experiences. The evaluators confirmed high implementation fidelity and satisfactory facilitator performance. These findings suggest that the SAFO Program holds potential for integration into psychosocial care services, although future studies with larger samples, greater participant diversity, experimental designs, and follow-up assessments are necessary to confirm its efficacy.
Ozônio penetrante como agente de eliminação de pragas em peças estruturadas
(Universidade Federal de São Carlos, 2026-05-22)
Gonçalves, Gustavo
;
Bagnato, Vanderlei Salvador
;
http://lattes.cnpq.br/4947860249518663
;
http://lattes.cnpq.br/2132424953451658
;
Sousa, Cristina Paiva de
The application of ozone in decontamination processes is highly relevant due to its oxidizing, disinfecting, and sanitizing capacity. Its versatility enables the reduction of chemical and microbiological contaminants in different matrices, including agricultural products, water, effluents, surfaces, and porous materials. In addition, ozone represents a sustainable alternative to conventional agents because it rapidly decomposes into molecular oxygen and, when complete mineralization of contaminants occurs, does not generate residues harmful to the environment. However, its effectiveness in solid structures may be limited by its low penetration capacity into cavities, pores, and internal galleries. In this study, a portable system intended for termite control in furniture, works of art, and objects of historical value was developed and evaluated, based on the sequential application of vacuum and ozone under a controlled atmosphere. The vacuum stage was employed to partially remove the air trapped within the materials and to promote the diffusion of the oxidizing gas into hard-to-reach regions. Experimental validation was performed using individuals of the species Coptotermes gestroi, subjected to different combinations of ozone concentration, vacuum pressure, relative humidity, exposure time, and number of cycles. In tests conducted in 500 mL vessels, the combination of 65,000 ppm ozone and 500 mmHg vacuum resulted in 95.6% mortality, whereas the same ozone concentration without vacuum application produced a lower mortality rate. In tests carried out in 8 L vessels, 100% mortality was achieved after three cycles at a relative humidity of 50 ± 5%, while under a condition of 70 ± 5% relative humidity, mortality was approximately 85%, demonstrating the influence of humidity on ozone stability and biocidal efficiency. In the enlarged-scale validation, using a 40 L vessel containing organic matter with microcavities, cumulative mortality reached 96.11% after three treatment cycles. The results emonstrated that the association between vacuum and ozone enhances biocidal action, increases gas availability within cavities and internal regions of the substrates, and improves process efficiency across different application scales. No perceptible physical changes were observed in the evaluated materials after the treatment cycles. The developed system demonstrated effectiveness, portability, reproducibility, and potential application in termite eradication and the decontamination of sensitive materials, constituting a sustainable alternative to conventional chemical methods and contributing to the development of technologies aimed at heritage conservation and integrated pest management.
Automated metaphor detection in Brazilian Portuguese
(Universidade Federal de São Carlos, 2026-05-22)
Johansson, Karina Mayumi
;
Caseli, Helena de Medeiros
;
http://lattes.cnpq.br/6608582057810385
;
http://lattes.cnpq.br/2082443839500538
;
Camargo, Heloísa de Arruda
Automated metaphor detection plays a crucial role in various Natural Language Processing (NLP) applications, including sentiment analysis, machine translation, and text generation. Given the intricate nature of metaphorical language, its automatic processing poses a significant challenge, requiring models to go beyond literal meanings to capture underlying conceptual mappings. While significant research has been conducted on metaphor detection for high-resource languages like English, many other languages remain underexplored. This is particularly true for Brazilian Portuguese, where the scarcity of annotated corpora and limited availability of studies hinder advancements in the field. The present work addresses this gap by constructing an annotated corpus for metaphor detection at token-level in Brazilian Portuguese and using it to evaluate encoder-only and decoder-only approaches for the task. This work presents, to the best current of knowledge, the first resource of its kind for Brazilian Portuguese and establishes an initial benchmark for automated metaphor detection in the language.
Entre linhas de código e gênero: ciência de dados e experiências vividas na análise da discriminação de gênero na TI em Sorocaba
(Universidade Federal de São Carlos, 2026-05-25)
Mercado, Cristiane Palomar
;
Ferro, Andrea Rodrigues
;
https://lattes.cnpq.br/3432809140419477
;
https://orcid.org/0000-0002-0145-8203
;
Leite, Kelen Christina
Despite the progress women have made in recent decades in terms of participation in the labor market and other spheres of public life, recent studies have revealed growing wage disparities affecting women. Considering the importance of the Information Technology (IT) sector to the Brazilian and global economy, it is essential to discuss wage differences and their impacts, especially on women's professional and personal lives. Therefore, the objective of this study is to analyze the wage disparities faced by women working in the Information Technology field in the city of Sorocaba, identifying and investigating the causes of these differences. The research sought to understand how socioeconomic, cultural, and organizational factors contribute to gender wage inequality in this sector. The study adopted a quantitative-qualitative approach. Initially, an analysis of data from the Annual Social Information Report (RAIS), from 2018 to 2022, for workers in the city of Sorocaba-SP, was carried out, followed by the application of the Oaxaca-Blinder decomposition method using the Python data science programming language. Subsequently, semi-structured interviews were conducted with IT professionals of both genders to investigate their perceptions and experiences of gender discrimination in the workplace. Finally, the research identified wage differences between men and women in the IT sector in Sorocaba, showing a significant increase in disparities: from 9.51% in 2018 to 19.45% in 2022. On average, 95% of this difference was attributed to discrimination. The interviews complemented these findings by offering a deeper understanding of working conditions and the factors that perpetuate wage inequality, revealing a scenario of discrimination, but also highlighting the importance of equity policies and initiatives that promote fairer environments.
Ambiente de desenvolvimento de drones com ROS2, Linux embarcado e Matlab
(Universidade Federal de São Carlos, 2026-05-25)
Francisco, Mateus Gava
;
Hernandes, André Carmona
;
http://lattes.cnpq.br/6806138514642732
;
https://orcid.org/0000-0002-1709-9903
;
https://lattes.cnpq.br/6663185607461104
Humanity has long dreamed of robots performing a wide variety of functions; nowadays, this is closer to reality than one might imagine. Given the explosion and spread of robot use, and the advent of drones, building and designing these machines has become increasingly challenging. To remedy this situation, various technologies have emerged, such as powerful and compact middleware and hardware, as well as development and testing techniques that have accelerated and reduced the cost of drone design. However, testing these aircraft quickly and safely during their development has become a challenge. To mitigate this problem, this work seeks to conceptualize an environment capable of assisting drone development, using software and hardware-in-the-loop techniques, aligned with the use of embedded systems, simulations, and a physical model of one of the drone’s axes. Preliminary results show that embedded Linux is capable of controlling the simulation stably and with tolerable latency values.
Base Nacional Comum Curricular: sentidos, significados e saberes dos professores de Educação Física
(Universidade Federal de São Carlos, 2026-05-25)
Nardon, Tiago Aparecido
;
Alves, Fernando Donizete
;
https://lattes.cnpq.br/3812723309905378
;
https://lattes.cnpq.br/0646088976976730
;
González, Fernando Jaime
This thesis investigates how teaching knowledge mediates the construction of senses and meanings attributed by Physical Education teachers to the National Common Curricular Base (BNCC). The investigation stems from the gap identified in the absence of studies analyzing the direct perspective of the teacher, assuming them as a reflective agent rather than a mere executor of curricular prescriptions. The study is characterized as qualitative, descriptive, and exploratory research organized into two stages: the descriptive phase, with the application of a questionnaire to 260 Physical Education teachers in Basic Education across all Brazilian states, and the exploratory phase, consisting of three focus groups with 15 teachers. The narratives were analyzed using Bardin's Content Analysis under the theoretical lens of Vygotsky's concepts of Sense and Meaning, Tardif's Epistemology of Practice, and Schön's Reflection-in-action and Reflection-on-action. The findings reveal that the implementation of the BNCC is a heterogeneous phenomenon mediated by a hierarchy of knowledge. Knowledge of Professional Training and Disciplinary Knowledge act as a foundation for a critical and ideological reading of the document, while Experiential Knowledge gives materiality to curricular prescriptions in the face of concrete teaching work conditions. Finally, Curricular Knowledge allows teachers to "play by the rules," preserving their institutional autonomy. The study demonstrates that teachers attribute multiple senses to the BNCC, including opposition, bureaucracy, non-adherence, legitimation, validation, systematization, and curriculum, depending on the circumstances. It concludes that the BNCC, a technical and cold document in its constitution, takes shape through the actions of teachers, whose voices reveal a pragmatic positioning towards it, indicating that any curricular policy only materializes within the subjectivity and conscious decision-making of those who operate on the school floor.
Efeitos de uma ação formativa sobre o reconhecimento de sinais precoces do autismo para professores
(Universidade Federal de São Carlos, 2026-05-26)
Fanchioni, Isabela Martins
;
Elias, Nassim Chamel
;
http://lattes.cnpq.br/4216525883778695
;
http://lattes.cnpq.br/1336444326415947
;
Lourenço, Gerusa Ferreira
Autism Spectrum Disorder (ASD) is characterized by impairments in communication and social interaction, and restricted and repetitive patterns of behavior. Characteristic signs of ASD are present from the child's first months, and their recognition constitutes a protective factor against possible worsening of the characteristics, as well as the possibility of an improvement in development and an increase in adaptive, verbal, and social behaviors. Teachers point to difficulty in recognizing these signs at school due to a lack of knowledge on the subject. Therefore, the objective of this work was to create, evaluate and implement an remote expository in-person training action on the identification of early signs and characteristics of ASD in Early Childhood Education teachers. The research used a single-subject quasi-experimental design with pre- and post-tests and follow-up. The procedures used were an initial assessment (pre-test), training, followed by a final assessment (post-test), at the end of the three stages, and after two months was applied the follow-up. The participants were three teachers. The results indicated that the participants began to recognize the early signs and definitions of ASD. This result corroborates previous findings in the literature that also indicated that training, even of short duration, can produce advances in teaching knowledge about ASD.
Representantes que nos condenam: necropolítica na atuação da Frente Parlamentar da Agropecuária na regulamentação de agrotóxicos
(Universidade Federal de São Carlos, 2026-05-26)
Bozzini, Pedro Talora
;
Santos, Leandro de Lima
;
http://lattes.cnpq.br/2750978055015275
;
Borsatto, Ricardo Serra
;
http://lattes.cnpq.br/5988987575101933
The FPA, the most influential parliamentary group in the Brazilian National Congress, has been acting decisively to deregulate the use of pesticides in the country. Given this scenario, this research investigates a gap in the debate about the role of the Brazilian legislature in promoting Necropolitics, a concept derived from Foucault's studies on Biopower and further developed by Achille Mbembe. Necropolitics refers to the management of death, determining who has the right to live and who is excluded from society, becoming the target of neglect or marginalization. Using this theoretical approach, we analyze the FPA's actions in the legislative processes that resulted in recent changes in pesticide regulation. To this end, we examine federal legislative proposals on the subject between 2019 and 2024, considering the FPA's influence in occupying strategic positions on thematic committees and in guiding the parliamentary group, imposing categories of analysis to characterize necropolitical agents. The results point to the FPA's dominant position and its success in defending the interests of agribusiness, even when this implies negative impacts on the environment and the State's mission regarding the risks to the health and well-being of populations exposed to the use of pesticides, including consumers, farmers, and rural workers.
Leitura e ansiedade: uma análise dessa emoção em discursos sobre essa prática
(Universidade Federal de São Carlos, 2026-05-26)
Liani, Ricardo José
;
Curcino, Luzmara
;
https://lattes.cnpq.br/7196766326882014
;
https://lattes.cnpq.br/4849994635754652
;
https://orcid.org/0009-0002-0938-4883
Autoria docente de jogos digitais e os movimentos de ruptura com a consciência ingênua: a experiência de futuros professores de Matemática sob a ótica sociotécnica
(Universidade Federal de São Carlos, 2026-05-28)
Nunes, Daniel Martins
;
Passos, Cármen Lúcia Brancaglion
;
http://lattes.cnpq.br/2297203444364327
;
https://orcid.org/0000-0002-5501-3584
;
http://lattes.cnpq.br/6790239528618710
This doctoral research, set in the North of Minas Gerais and inspired by João Guimarães Rosa's concepts of “Sertão” (Backlands) and “Travessia” (Crossing), investigates the initial education of Mathematics teachers in the face of challenges in a context mediated by digital artifacts. The study problematizes the instrumental view and technological determinism, manifested under the logic of “technological salvationism.” In opposition to this dominant view, the defended thesis is that Teacher Authorship of digital games acts as a sociotechnical formative device, capable of stressing the naive consciousness about technology and breaking the illusory belief in its salvationist power. This authorship transcends the mere technical production of the artifact, configuring itself as a recursive and inseparable cycle of creating to apply, and applying to (re)signify the creation. Accordingly, the guiding research problem was defined as: What are the contributions and limits of a formative experience based on Teacher Authorship for the professional constitution of pre-service Mathematics teachers, grounded in their perceptions of the design, development, and mediation of digital games in teaching? The general objective was established to investigate the contributions and limits of a formative experience based on Teacher Authorship for the education of Mathematics teachers, analyzing the perceptions and reflections constructed by pre-service teachers based on the experience of conception, programming, and didactic use of digital games. The specific objectives unfold as follows: i) to understand the implications of Teacher Authorship in the constitution of the participants' perceptions regarding the tensions, algorithmic barriers, and reflections experienced during the digital game development process; and ii) to analyze the pre-service teachers' reflections and perceptions regarding the potentialities and limits of pedagogical mediation, evidenced through the experience of using these authorial artifacts in real teaching contexts in Basic Education. Grounded in Brigitte Albero's Sociotechnical Approach, Álvaro Vieira Pinto's philosophy of technology, and the assumptions of experience (Jorge Larrosa) and reflection (John Dewey), the research adopted a qualitative approach. Data were produced at the Federal Institute of Northern Minas Gerais (IFNMG – Januária Campus), where four pre-service teachers experienced “Teacher Authorship,” which consisted of designing, coding, and mediating the use of their own games in public schools. Data interpretation was carried out through Discursive Textual Analysis (DTA). The results attest to the validity of the thesis by showing that immersion in this authorial cycle provoked real fissures in the participants' technical consciousness. The confrontation with the realities of the "school floor" and with the subversions of Basic Education students shattered the myth of plug and play, forcing the pre-service teachers to face a zone of pedagogical risk. It is concluded that Teacher Authorship transcends software appropriation, configuring itself as a tensional process of alterity, empathy, and political literacy. The research also denounces applicationist curricular models and structural school precarization, arguing that, in the face of technology, a politically awakened teacher conscious of their intentionality is the most revolutionary “technology” in the classroom.
Efeito de multiestressores (temperatura e bisfenol A) no crescimento de duas espécies de macrófitas
(Universidade Federal de São Carlos, 2026-05-29)
Sant'Ana, Laiane Neri
;
Cunha-Santino, Marcela Bianchessi da
;
http://lattes.cnpq.br/2356641063223397
;
http://lattes.cnpq.br/0393130647666806
;
Cunha-Santino, Marcela Bianchessi da
Freshwater ecosystems are increasingly subjected to multiple pressures, including climate change, pollution, and alterations to the hydrological cycle. This context creates a multi-stressor environment for organisms inhabiting aquatic systems, such as macrophytes, plants that occupy wetlands or fully aquatic habitats. Plant communities are directly influenced by temperature, which modulates their metabolic rates and growth parameters, and may interact synergistically with other stressors, such as chemical pollutants. Bisphenol A (BPA) is a synthetic organic compound widely used in plastic production and is an emerging contaminant that interacts with aquatic organisms, including macrophytes. The objective of this study was to evaluate the effects of bisphenol A and temperature, within a climate change context, on two macrophyte species (R. natans and S. auriculata). The following hypotheses were tested: (i) BPA would exert negative effects on plant growth and development; (ii) a 2 °C temperature increase would synergistically interact with the contaminant, potentiating its toxic effects; and (iii) R. natans and S. auriculata would exhibit similar growth responses when exposed to identical conditions. Specimens of both species were individually exposed to bisphenol A concentrations of 0 mg/L (control), 2.5 mg/L, and 10 mg/L (50 individuals per concentration) and maintained at two temperature regimes, 21.5 °C and 23.5 °C, over a 6-week period. Leaf area was measured weekly, and the remaining bisphenol A concentration was determined. At the end of the experimental period, dry and fresh biomass of the macrophytes were determined gravimetrically. S. auriculata proved more sensitive to the contaminant, particularly at the highest concentration (10 mg/L), exhibiting visible signs of deterioration, including chlorosis and senescence. The higher temperature (23.5 °C) promoted growth and enhanced resistance/resilience to the contaminant in this species. In contrast, R. natans showed deleterious responses to higher temperatures, with negative effects on growth parameters and an apparent reduction in contaminant absorption/adsorption. Thus, under a multi-stressor scenario, S. auriculata may benefit from increased temperature but may be adversely affected by bisphenol A. Conversely, R. natans demonstrated phytoaccumulation potential for bisphenol A but was adversely affected by elevated temperatures.
Concepções e práticas da convivência na atuação de terapeutas ocupacionais em Centros de Convivência e Cooperativas
(Universidade Federal de São Carlos, 2026-05-29)
Machado, Pietra Rosa Aguiar
;
Morato, Giovana Garcia
;
http://lattes.cnpq.br/2928616003881655
;
https://lattes.cnpq.br/9334570986994190
;
Leão, Adriana
Social Interaction and Cooperative Centers (CECCOs) are strategic components of Brazil's mental health policy and the Psychosocial Care Network (RAPS), guided by principles of care within the community, social participation, inclusion, and the co-creation of the "common." These facilities feature interprofessional teams—notably including occupational therapists, whose practice has historically contributed to creating spaces for social interaction, participation, and cultural production, as well as strengthening community ties. Although social interaction holds a central place in the organization of these services and the practices of occupational therapists, the concept remains multifaceted and continues to evolve within the field of occupational therapy. Against this backdrop, the general objective of this research was to identify how occupational therapists at CECCOs in the city of São Paulo conceive and practice social interaction. A specific objective was to analyze the relationship between the conceptions of social interaction adopted by these professionals and the practices implemented in the services. This study employed a qualitative approach with an exploratory and descriptive design, conducted at eight CECCOs in São Paulo. Eight occupational therapists working at different CECCOs participated in the study; all had at least one year of experience in these services and were directly involved in daily social interaction practices. Data collection involved two instruments: an Occupational Therapist and CECCO Characterization Form and a semi-structured interview guide. Form data were analyzed descriptively, while interview data underwent thematic analysis. Four categories emerged from this analysis: Category 1 – Historical, organizational, and symbolic dimensions of CECCOs; Category 2 – Social interaction: conceptions, understandings, and practices; Category 3 – Interplay between social interaction and occupational therapy; Category 4 – Sociopolitical aspects of social interaction and their repercussions within CECCOs. The results show that social interaction emerges as a structuring axis of the work at CECCOs, revealing that interacting involves sharing experiences, building together, and recognizing the other in their uniqueness. They further highlight that this experience requires creating conditions where different ways of being and existing in the world are welcomed. This ethical dimension serves as a prerequisite for building more inclusive and solidary societies. Social interaction entails the continuous practice of recognizing the legitimacy of the other and sustaining relationships that transcend prejudices, stigmas, and normative expectations; this materializes in concrete practices regarding the organization of daily life, the facilitation of groups, the mediation of encounters, and the creation of spaces for participation and belonging. Thus, a close relationship is observed between how occupational therapists understand social interaction and the practices they implement; their conception of it as a relational, ethical, and collective process translates into interventions that prioritize encounters, listening, and openness to difference. Social interaction, as practiced in CECCOs, is considered a structuring axis of Occupational Therapy practice and a fundamental dimension of psychosocial care, contributing to the fostering of autonomy, social participation, and the right to the city, while highlighting the specific role of Occupational Therapy in sustaining practices committed to care within a context of freedom.
Análise cognitivo-funcional da ironia construcional [só que XAdv] no português brasileiro: expressão de ponto de vista por meio de ironia
(Universidade Federal de São Carlos, 2026-05-29)
Camargo, Daniel William Ferreira de
;
Hirata-Vale, Flávia Bezerra de Menezes
;
https://lattes.cnpq.br/2797556968074056
;
https://orcid.org/0000-0002-9091-9461
;
https://lattes.cnpq.br/8560900153891186
The present study investigates, based on both formal and functional factors, irony as a marker of viewpoint in the construction [só que XAdv] within the framework of Cognitive Linguistics, more specifically according to the Construction Grammar paradigm (Goldberg, 1995, 2006). By applying the properties of schematicity, productivity, and compositionality, proposed by Traugott and Trousdale (2013), this work characterizes [só que XAdv] with respect to its form and function. Moreover, drawing on the insights of Lehmann and Bergs (2021), it asserts its status as a construction irony, whose ironic interpretation, once embedded in the collective imagination, is immediately recognized. Furthermore, owing to the inherent irony in [só que XAdv], this construction emerges as a prototypical case of perspectivization, based on the Theory of Viewpoint (Tobin; Israel, 2012). To that end, adopting a methodology that, with synchronic and qualitative data, accounts for that actual use of contemporary Brazilian Portuguese, we make use of O Corpus do Português (Davies; Ferreira, 2016), specifically the NOW and Web/Dialects subcorpora, and conduct two search rounds. In this context, using the tag só que ADV and the Brazil filter, the findings indicate that the construction is (i) more schematic, evidenced not only by the presence of constructions such "só que não", "só que nunca", and "só que sim", but by "só que jamais", along with variations incorporating some type of intensifier/reinforce or modalizer; (ii) more productive, since, beyond the diversity of adverbs that may fill the slot X, combinations such as "só que infelizmente não", with an evaluative modalizer, reveal the schema’s capacity to continue licensing new instances; and (iii) less compositional, as the mere sum of the parts constituting the constructions instantiated by the relevant schema is insufficient to establish their full meaning. Moreover, [só que XAdv] should be analyzed as a constructional irony, insofar as it involves a schematic formal structure, a conventionalized association with an ironic effect, and an interpretive shift away from literal meaning. From a discursive standpoint, the construction also exhibits a scalar pattern of negation, ranging from more mitigated to more categorical forms, in the following gradation: só que talvez não < só que não = só que também não < só que não mesmo < só que nunca = só que jamais. Finally, the analysis highlights the perspectival shift brought about by the irony encoded in the schema, which involves a movement from a lower semantic level to a higher pragmatic one. However, such perspectivization, unlike what is elucidated by Tobin and Israel (2012), occurs automatically, requiring no extra inferential effort on the part of the interlocutor, since it constitutes a case of constructional irony, as proposed by Lehmann and Bergs (2021). Thus, this study aims to contribute to the advancement of linguistic studies in written Brazilian Portuguese variation, insofar as, by investigating and documenting a construction that has become established across different registers and contexts, it seeks to reveal irony as a sophisticated component of everyday communication. This is because it exceeds predictable meaning by dissimulating literary, rhetorical, and social effects and, therefore, functions as an essential tool for shaping and expressing viewpoints.
Grafos eulerianos e identidades polinomiais sobre a álgebra das matrizes
(Universidade Federal de São Carlos, 2026-05-29)
Cruz, Bruno Machado da
;
Talpo, Humberto Luiz
;
http://lattes.cnpq.br/1674689444257254
;
http://lattes.cnpq.br/4842787673699774
;
Fagundes , Pedro Souza
In this work, we present applications of Graph Theory to the study of polynomial identities for the matrix algebra $M_n(K)$. Initially, we establish the fundamental concepts of PI-theory and Graph Theory, emphasizing the definition of Eulerian graphs. We analyze the Amitsur-Levitzki Theorem in detail through the proof proposed by Richard Swan [11], which utilizes the counting of Eulerian paths in directed graphs to simplify the algebraic problem. Subsequently, based on the work of Szigeti, Tuza, and Révész [13], we explore how specific graph constructions allow for the formalization of the conditions for the existence of these identities. Finally, we highlight that understanding this technique not only simplifies classical results but also establishes itself as a powerful tool for discovering new identities in PI-algebras.
Produção de membranas de nanofibrilas de celulose/MoO₃ para adsorção de azul de metileno de efluentes aquosos
(Universidade Federal de São Carlos, 2026-05-29)
Filho, Jorge Fernandes
;
Mendonça, Vagner Romito de
;
http://lattes.cnpq.br/4270375873948823
;
https://orcid.org/0000-0003-2300-9959
;
de Menezes, Aparecido Junior
This study investigates the development and characterization of composite membranes based on cellulose nanofibrils (CNF) and molybdenum trioxide (MoO3) for the removal of the cationic dye methylene blue (MB) from aqueous effluents. The experimental approach systematically varied the concentrations of CNF (0.5–2.0%) and MoO3 (1–10%) to elucidate the relationship between the support matrix microstructure and the adsorptive performance of the active phase. Characterization was performed through structural analyses (SEM, XRD, FTIR, and porosity), kinetic studies, and adsorption isotherms. The results indicate that the incorporation of MoO3 promotes modifications in surface interactions, as reflected by the better fit to the pseudo-second-order kinetic model. The adsorptive process is predominantly governed by electrostatic interactions between the negatively charged membrane surface pHPZC (3,5) and the methylene blue in aqueous solution for both membranes with and without the oxide. The main finding of the study was the identification of an inverse relationship between CNF concentration and adsorption capacity. This behavior was attributed to a reduction in membrane porosity resulting from structural compaction (hornification), which limits mass transport and reduces accessibility to the active MoO3 sites. The N0.5Mo5 formulation (0.5% CNF and 5% MoO3) exhibited the best performance, with a maximum adsorption capacity of approximately 453,4 mg/g, resulting from a balance between high porosity and adequate dispersion of the active phase. The results demonstrate that the microstructural porosity of the support matrix is the dominant factor in the composite's performance, outweighing the influence of the amount of active material and establishing an important design principle for the development of high-performance adsorbent materials.
Eletrodeposição de liga à base de Ni, Co e P para aplicação na eletrólise da água
(Universidade Federal de São Carlos, 2026-05-29)
Moreira, Nathan dos Santos
;
Mascaro, Lucia Helena
;
https://lattes.cnpq.br/9130022476352844
;
https://lattes.cnpq.br/5606563001971845
;
https://orcid.org/0009-0007-4300-182X
This work investigates a NiCoP catalyst obtained by electrodeposition for alkaline water electrolysis. Since the electrodeposition conditions directly influence the morphology, composition, and electrocatalytic activity of the film, a central composite design was employed to optimize the catalyst electrodeposition conditions. The studied variables were the concentrations of [NiSO4], [CoSO4], and [NaH2PO2], as well as the applied current density (jd), while the responses of the experimental design were the overpotentials at 10 and 100 mA cm⁻2 (η10 and η100, respectively) for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The obtained films exhibited limited activity toward the OER, with a maximum overpotential reduction lower than 50 mV compared to the stainless steel substrate. In contrast, promising results were observed for the HER, with a coefficient of determination (R2) of 80.2 % for η10, where the NiSO4 concentration and current density were identified as significant effects at a 95 % confidence level. Although [CoSO4] and [NaH2PO2] were not statistically significant, the complete removal of these salts severely compromised the catalytic performance. However, the desirability study indicated that their concentrations can be reduced by up to 50 % and 80 %, respectively, without significant loss in HER activity or catalyst composition. In the second stage, the optimized electrodeposition condition for the NiCoP catalyst was evaluated in an anion exchange membrane water electrolyzer (AEMWE), using Ni3Fe-LDH as the anode in 1.0 mol L⁻1 KOH solution at Forschungszentrum Jülich, Germany. The polarization curves recorded for this system before and after 240h of operation at 1.0 A cm⁻2 showed similar profiles, reaching 1.0 A cm⁻2 at 2.00 V. Overall, this work demonstrates the potential of electrodeposited NiCoP, a simple and low-cost synthesis method, as a catalyst with competitive electrochemical performance for the HER in AEMWE systems.
Compatibilidade de óleos essenciais e Trichoderma sp. em antagonismo contra Fusarium sp
(Universidade Federal de São Carlos, 2026-05-29)
Mora, Érika Costa Bretones
;
Souza, Clovis Wesley Oliveira de
;
Stephan, Sônia Regina Nogueira
;
http://lattes.cnpq.br/0781683628437007
;
http://lattes.cnpq.br/2616934901560211
The olive tree (Olea europaea L.) was introduced into Brazil more than two centuries ago and faces phytosanitary challenges such as Fusarium wilt, caused by fungi of the genus Fusarium, which leads to vascular browning, root necrosis, and dieback of the aerial parts. Conventional management includes the elimination of infected plants and the use of healthy seedlings. However, these strategies present limitations. As an alternative, biological control using fungi of the genus Trichoderma has gained attention due to its antagonistic activity against phytopathogens. In addition, essential oils have attracted interest because of their antifungal properties and low toxicity. This study evaluated the effects of essential oils on three isolates of the genera Trichoderma (CMO 16, CMO 48, and T221A) and two isolates of the genera Fusarium (FUS 1 and FUS 2), both individually and in combination, to investigate their potential as a strategy for the control of Fusarium wilt in olive trees. Seven essential oils were tested: lemongrass (Cymbopogon citratus), clove leaf (Syzygium aromaticum), spearmint (Mentha spicata), peppermint (Mentha piperita), oregano (Origanum vulgare), palmarosa (Cymbopogon martinii), and Piper aduncum L. (Piper), through individual growth and fungal antagonism assays. The data were subjected to analysis of variance (ANOVA) and presented as dot plots and heatmaps. The three Trichoderma isolates showed high tolerance to most essential oils, exhibiting maximum growth in the presence of lemongrass, spearmint, and peppermint oils. Fusarium growth was significantly inhibited, particularly by clove leaf and oregano essential oils at higher concentrations. The combination of Trichoderma and essential oils enhanced the suppression of Fusarium. The best results were obtained at the lowest concentrations of lemongrass, spearmint, and peppermint essential oils. These findings indicate that the combined use of Trichoderma and essential oils represents a promising and sustainable strategy for the control of Fusarium wilt in olive cultivation.
Temporal coherence and collective effects in light scattering by cold atoms
(Universidade Federal de São Carlos, 2026-05-29)
Fernandes Biscassi, Mateus Antônio
;
Hugbart, Mathilde
;
https://orcid.org/0000-0002-5018-0236
;
Bachelard, Romain
;
http://lattes.cnpq.br/4344589799192534
This thesis investigates the temporal coherence properties and collective effects of light scattered by disordered ensembles of cold atoms. Using cold atomic clouds as a highly controllable experimental platform, we combine measurements of first- and secondorder optical correlation functions with theoretical modeling and numerical simulations to characterize different scattering regimes. We first examine the Siegert relation, establish the conditions for its validity, and experimentally verify its applicability in our system as a simple link between first- and second-order correlation functions. We then identify a transition between two distinct light-scattering regimes, characterized by different mechanisms responsible for coherence loss: a classical, atomic motion-induced mechanism at low saturation and a quantum fluctuations-driven mechanism associated with spontaneous emission under strong saturation. Next, we investigate the role of the atomic cloud geometry in the scattering process, demonstrating that by controlling the cloud geometry it is possible to reduce multiple scattering and consequently enhance the coherence time of the scattered light. Finally, we theoretically explore signatures of collective effects in the Rabi oscillation dynamics of strongly driven, interacting two-level systems, revealing a collective displacement of the resonance frequency that increases with the optical depth of the system.
Corpos em discurso: a beleza da mulher negra- interincompreensão, ressignificação e revascularização discursivas
(Universidade Federal de São Carlos, 2026-05-29)
Fabiano, Bianca Cristina de Oliveira.
;
Baronas, Roberto Leiser
;
https://lattes.cnpq.br/4613001301744682
;
https://lattes.cnpq.br/43272630228343
;
Carreon, Renata de Oliveira
This master’s thesis is a continuation of a research project conducted with financial support from the National Council for Scientific and Technological Development (CNPq) in 2020, titled “Ora-Yê-Yê-Ô: or Black Beauty: From Discursive Re-signification to the Empowerment of Black Women.” In that initial research, we focused on analyzing the discursive functioning of technogeneres (posts, hashtags, photomontages, and videos) mobilized by Black women’s collectives on Web 2.0, with the aim of reframing the discursive aggression they face. In this work, the main objective is to promote dialogue between theoretical proposals on reframing (Paveau, 2021; Paveau, Costa, and Baronas, 2021) and discursive revascularization (Baronas and Costa, 2022; Baronas, 2024), developed in conjunction with the concept of intercomprehension (Maingueneau, 1984/2008). Based on a theoretical dialogue between the aforementioned concepts, we analyze how the history of Black beauty in Brazil is constructed, drawing a comparison with the issue of racial controversy fueled by hate speech on social media, using the theme of “Black women’s beauty” as a framework for reflection. Based on these analyses, we seek to understand not only how these women, who have been historically silenced, reframe the offenses directed against them, but also how certain groups reiterate previously produced aggressive statements, reproducing a racist and sexist viewpoint. Finally, this research aligns with the militant practices of reparation and historical resistance that these collectives promote in the digital sphere.