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Apoio social e repercussões socioeconômicas de famílias de adolescentes e adultos jovens com condições crônicas complexas: um estudo de métodos mistos
(Universidade Federal de São Carlos, 2025-02-27)
Ferreira, Fernanda Yeza
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Okido, Aline Cristiane Cavicchioli
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https://lattes.cnpq.br/4358128584478380
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https://lattes.cnpq.br/4569284221808812
To analyze the social support received and the socioeconomic repercussions experienced by families of adolescents and young adults with complex chronic conditions. Method: This is a mixed-methods study, using a concurrent triangulation design, conducted in a municipality in the interior of the state of São Paulo, Brazil. Eligible participants were mothers of adolescents or young adults with complex chronic conditions who had taken part in a previous study conducted between 2012 and 2013. Exclusion criteria included resolution of the clinical condition or death of the mother or child. In the quantitative phase, the same socioeconomic questionnaire applied ten years earlier was re-administered, along with the Medical Outcomes Study – Social Support Survey. Quantitative data were analyzed using descriptive and inferential statistics. In the qualitative phase, the mothers participated in semi-structured interviews guided by two introductory questions: a) Tell me about your experiences related to financial and work issues over the past ten years; and b) Tell me about your experiences regarding support from other people (social support) in caring for your child with complex chronic conditions over the past ten years. The empirical material from the interviews was organized and analyzed based on the principles of deductive content analysis. All ethical guidelines for research involving human subjects were followed. Results: Of the 102 children who participated in the original study in 2012, 44 had passed away, five had resolved conditions, and there were two maternal deaths. Of the 51 potentially eligible mothers, 24 participated in the quantitative phase and 12 shared their experiences in interviews. Regarding social support, scores across the five dimensions ranged from 54.17 (tangible support) to 84 (emotional support), with scores below 80 in four out of five dimensions, indicating that mothers perceived a lower frequency of available support in most areas, except for emotional support. In the qualitative data, mothers reported both experiences of partnership and support in various dimensions, as well as experiences of abandonment, misunderstanding, and feelings of loneliness due to limited interaction with family and friends. Despite the challenges, they remained resilient and committed to caring for their children. When comparing socioeconomic conditions over the ten-year period, no statistically significant differences were found in household income; however, there was a decrease in the number of families with homeownership and private health insurance. Formal employment challenges, income supplementation strategies, and high rental costs were frequently mentioned in the interviews, corroborating the quantitative findings. Conclusion: Social support was evaluated as insufficient in most dimensions, aligning with the qualitative experiences in some cases, but diverging in others. While family income remained stable over time, access to assets and services such as homeownership and private health insurance declined. The interview data reinforced the quantitative findings, especially in illustrating challenges related to formal employment, strategies to supplement income, and the high cost of rent.
Classe, cultura e política: um estudo relacional sobre trajetórias e engajamento militante em Juiz de Fora - MG
(Universidade Federal de São Carlos, 2025-02-27)
Oliveira, Mariana Cardozo Batista de
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Sanchez, Fábio José Bechara
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https://lattes.cnpq.br/6423443695464907
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https://lattes.cnpq.br/8828428466266589
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https://orcid.org/0000-0002-6269-0348
This thesis aims to investigate how social and symbolic dimensions intertwine with the political behavior of activists in the city of Juiz de Fora – MG. Based on a study conducted with 121 militants from different political spectrums, the research sought to position them within a relational space constructed through the technique of multiple correspondence analysis (MCA). The theoretical approach adopted is grounded in Pierre Bourdieu’s political sociology, assuming that a multidimensional understanding of class, informed by the social space model, enables significant advances in the analysis of political engagement in contemporary Brazil. The results confirm the two main theoretical hypotheses: (i) contemporary political struggles are led by activists from the middle classes, regardless of their ideological orientation, and (ii) the political affiliation of these activists varies according to their capital composition, influencing their positioning within the analyzed relational space. Specifically, the collected data reveal that left-wing activists belong to a cultural fraction of the middle class, while right-wing activists are situated in an economic fraction of the same class. This demonstrates that political divisions manifest through the interaction between different forms of capital. Based on these findings, the study highlights that political practices are part of a broader lifestyle, directly linked to other symbolic practices of distinction. In addition to a more structural analysis, the research also includes a processual perspective on activism by examining the individual and political trajectories of 15 interviewees. It shows that there are significant differences between left-wing and right-wing activism, particularly regarding political socialization processes and motivations for activism. This thesis aims to contribute to the development of a research agenda in Brazilian sociology that integrates class and culture not only in their strict sense—as the consumption of cultural goods—but also by incorporating political practices into the broader set of symbolic practices.
Números construtíveis: história, álgebra e construções geométricas
(Universidade Federal de São Carlos, 2025-02-27)
Ferreira, Pedro Henrique
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Seixas, Wladimir
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https://lattes.cnpq.br/1697352974728327
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https://orcid.org/0000-0002-0843-3500
In this work, we present a study on the history and algebraic theory involved in the so-called constructible numbers. We also introduce some didactic activities using the Geogebra software in the discussion of geometric constructions. Thus, we propose an approach to the study of constructible numbers through ruler and compass constructions in high school classes, relating it to the study of algebra.
Parceirão de que jornada? Memes LGBT+ e humor no Twitter/X em 2023
(Universidade Federal de São Carlos, 2025-02-27)
Rodrigues, Tiago Augusto
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Mendonça, Viviane Melo de
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https://lattes.cnpq.br/4827331651090223
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https://orcid.org/0000-0002-1368-1883
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https://lattes.cnpq.br/2314172953402478
This study aims to identify and analyze memes related to the LGBT+ population which circulated on the digital social media platform Twitter/X during 2023, with an emphasis on understanding the discursive practices and interpretative repertoires associated with these cultural objects. The exploratory phase of this research was conducted using the researcher’s account on the platform, culminating in the identification of 41 distinctive memes related to the LGBT+ community. These objects were collected and organized not as isolated pieces but as interconnected elements of a collection. The analysis adopted an interdisciplinary approach, grounded in the methodology of discursive practices and construction of meaning in everyday contexts, originating in social psychology. This perspective made it possible to understand how memes function as instruments of cultural expression, resistance, and identity resignification. Among the main themes identified are the reproduction and contestation of stereotypes about the LGBT+ population, as well as the discursive approaches surrounding same-sex unions, both of which are explored in depth. The results revealed that the analyzed memes mobilize diverse repertoires, ranging from ironic humor to social critique, fostering reflections on cis-heteronormativity and reinforcing the importance of visibility and belonging for this population within the digital landscape. The study of specific cases, such as the "Parceirão de Jornada" meme, demonstrated how the re-signification of these objects contributes to symbolic resistance and the construction of affective narratives. It is concluded that memes not only reflect but also transform social and cultural practices, They play a significant role in the production and circulation of meanings related to the LGBT+ population. The findings of this study provide significant contributions to the fields of digital communication and identity studies, while also highlighting gaps and promising avenues for future research on the impact of discursive practices in digital environments.
Levantamento do nível de cultura oceânica de alunos do ensino fundamental: um comparativo entre cidades do litoral e do interior
(Universidade Federal de São Carlos, 2025-02-27)
Souza da Silva, Barbara Aparecida
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Sarmento, Hugo
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https://lattes.cnpq.br/4515469289999439
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https://orcid.org/0000-0001-5220-7992
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https://lattes.cnpq.br/7236580961487291
The oceans make up 71% of the Earth's surface and participate in a set of processes and cycles essential to life. However, their conservation is still compromised by anthropogenic actions, threatening the availability of resources and marine life. The UNESCO Decade of the Ocean was established, for which goals were proposed regarding awareness and conservation of the oceans, and is segmented in the national scenario by the National Implementation Plan of the Decade of Ocean Science for Sustainable Development, which also aims to promote ocean literacy (OC) in the country, also starting through blue schools. Ocean literacy is a concept that is internationally solid, but still new in Brazil, and aims to encompass the understanding of the ocean, its importance and the influence of individual actions on it, and can be understood based on seven essential principles. In Brazil, there is a gap in expected knowledge, resulting from gaps in the skills of the National Common Curricular Base (BNCC) and its coherence with the expected oceanic principles, which can impact learning and environmental education even in elementary school. In addition, methodologies based on the foundations of the OC are being consolidated, such as the International Ocean Literacy Survey (IOLS), which aims to measure an individual's level of oceanic enculturation, and is relevant for monitoring the measures proposed by the Decade of the Ocean. This study sought to survey the level of oceanic literacy of elementary school students, encompassing two regions of Brazil, using the adapted methodology of the IOLS questionnaire. The results revealed a medium to low level of oceanic literacy in both locations, with a slightly higher average number of correct answers in Navegantes (7.5) compared to São Carlos (7.1). Although this difference is subtle, analyses showed that the difference between regions is statistically significant (p = 0.03334), suggesting that location may influence the assimilation of ocean culture. Analysis by principle indicated that the most assimilated were principles 1 and 3, while the least understood were principles 2, 4 and 6. We also observed a direct relationship between the presence of these missing principles in the curriculum and student performance. These data highlight the need to review the formal school curriculum to align it with the National Implementation Plan of the Decade of Ocean Science for Sustainable Development and the goals of the Ocean Decade. In particular, it is essential to include principles 2, 4 and 7 in the National Common Core Curriculum, promoting a more comprehensive education about the ocean
Tutoria por pares nos anos finais do ensino fundamental para estudante com Transtorno do Espectro Autista
(Universidade Federal de São Carlos, 2025-02-27)
Parreira, Marcela Aparecida Rodrigues
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Pedro, Ketilin Mayra
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https://lattes.cnpq.br/0991868156805558
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https://orcid.org/0000-0002-1893-5002
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https://lattes.cnpq.br/0473701782819669
Peer Tutoring (PT) is conceived as a learning support and guidance strategy in which students facing difficulties receive personalized assistance, while those with greater ease can deepen and enrich their knowledge. Therefore, the overall aim of this study was to understand the influence of the Peer Tutoring strategy on the social interaction and academic participation of a student with Autism Spectrum Disorder (ASD). Specifically, it sought to understand the classroom dynamics and interactions between the student with ASD and other classmates, as well as the role of teachers in these interactions; implement a PT program; and examine changes in the social interaction, behavior, and academic engagement of the student with ASD throughout the PT implementation. To achieve this, the research adopted an intervention-based qualitative approach. Participants included one student with ASD in the final years of elementary school, seven typically developing peers, one Portuguese Language teacher, and one Mathematics teacher. The study was conducted in a municipal elementary school. Six observation sessions were conducted during the initial phase, and 60 sessions during the implementation phase, along with semi-structured interviews with all participants at both the beginning and the end of the study. Data collection instruments included a field diary, observation protocols, and interview guides. From the systematization of the findings, three analytical categories were established: Action, Interaction, and Participant Engagement. The results suggest that PT can be an effective strategy for promoting the school inclusion of students with ASD, as it enables the development of social, academic, and behavioral skills in the student with ASD while also benefiting other students by fostering a learning environment that values diversity. This study contributes to the field of Special Education from an Inclusive Education perspective by providing empirical evidence of the benefits of PT for students with ASD and offering an intervention model that may be replicated in other educational settings. However, it is important to acknowledge certain limitations, such as the small number of participants and the specific school context. Further studies with larger samples and in diverse contexts are necessary to expand the findings and deepen the understanding of PT’s impact on the development of students with ASD.
Regeneração natural em plantio florestal por semeadura direta
(Universidade Federal de São Carlos, 2025-02-27)
Costa, Renata Marconi Custódio da
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Piña-Rodrigues, Fátima Conceição Márquez
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https://lattes.cnpq.br/1475369713141675
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https://orcid.org/0000-0001-8713-448X
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Silva, José Mauro Santana da
The United Nations (UN) has declared the period from 2021 to 2030 as the decade of Ecosystem Restoration, which aims to prevent, halt and reverse the degradation of ecosystems around the world. Forest restoration aims to reestablish biologically viable forests that are capable of self-perpetuating without the need to depend on constant human interventions. Ecological restoration must repair multiple facets of an ecosystem, including its composition, structure, and function. There is a need to evaluate the results of forest restoration, and to monitor ecosystem functioning, indicators that evaluate ecological processes are needed. These indicators need to be effective in showing the cause-and-effect relationship, be easy to measure, quantify, interpret and understand. The selection of indicators needs to include stability attributes, which are the system's capabilities to maintain stable dynamic equilibrium, the system's ability to return to productive potential after a disturbance called resilience, reliability, which is the system's ability to maintain productivity and equilibrium for a long time. The general objective of this work was to verify the application of environmental monitoring protocols with the use of environmental indicators. In chapter 1, the use of environmental monitoring indicators was used in a systematic literature review that evaluated the use of ecological functionality indicators in different forest biomes. Chapter 2 evaluated a 6.5-year-old forest plantation with a focus on the analysis of natural regeneration.
Desenvolvimento de uma forma farmacêutica de liberação modificada baseado no delineamento de experimentos (DOE)
(Universidade Federal de São Carlos, 2025-02-27)
Felizardo Junior, Carlos Alberto
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Pereira Filho, Edenir Rodrigues
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https://lattes.cnpq.br/3394181280355442
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https://lattes.cnpq.br/5192840753266132
One of the biggest challenges in the process of developing and registering a drug is to develop a formulation that is equivalent in terms of comparative dissolution in relation to the reference drug marketed, meeting the corresponding requirements described in legislation through the design around approach. Through the study of chemometrics, using factorial planning and statistical tools, it is possible to develop a solid pharmaceutical form that meets the recommended equivalence and dissolution profile criteria. Contraception is a practice widely used by women all over the world, and oral contraceptives are among the most widely used classes. They have several advantages over other classes of contraceptives, however, in some situations, they can pose certain risks to patients. The development of isolated progestins has proven to be effective and favourable for addressing issues related to some patient risks. National legislation establishes the need to prove the equivalence and bioequivalence of a drug in relation to its reference, in which its efficacy and safety have been proven. To this end, it is important to evaluate the impact of bioavailability through in vitro studies such as dissolution profile tests, through several collections of the dissolution medium at appropriate times, evaluating the percentage of dissolved drug. The presented work aims to develop a solid pharmaceutical form of prolonged release using multivariate experimental factorial design tools. By applying factorial design as a chemometric tool, we can design and optimize a formulation by identifying critical quality parameters, mainly reducing the number of necessary tests without compromising the quality of the information and reliability of the results
Como atletas de handebol com dor no ombro percebem e lidam com esse sintoma? Um estudo qualitativo
(Universidade Federal de São Carlos, 2025-02-27)
Mandrá, Jhulie Eloize
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Haik, Melina Nevoeiro
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Rezende Camargo, Paula
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https://lattes.cnpq.br/7602596349127054
Introduction: The handball, as a contact sport, entails a risk of injury for athletes and studies demonstrate that the rate frequency of shoulder injuries range from 35 to 40%, between acute and chronic. Although previous studies present biomechanical factors as determinants for maintenance of these symptoms, recent investigations highlight the influence of psycho-emotional questions in the intensification of pain. A qualitative approach to understand how athletes face these symptoms can offer crucial insights, enabling the analysis of neglected contexts in qualitative research. Objectives: Exploring how professional handball athletes perceive and deal with shoulder pain and identify how the individual and sports context contributes to the way the athlete perceives his condition and deals with it. Methods: This is a qualitative study with 13 athletes between 18 and 30 years old who play handball with the team of São Carlos city. The data collection was realized in two steps: 1) Form application for sample characterization and 2) semi-structured interview, according to the interview script prepared by the research team. The questions had as focus identity the athletes perception about your shoulder condition, about the factors who influence the condition or might be influenced by her. Results: The results bring us social and psychological factors, and as a highlight, the biological factors in the etiology of pain, in findings that expose the vision and experience of these athletes, making possible explore the individuality and collectivity of the reports. Conclusion: The studie corroborates the hypothesis that the shoulder pain is multifactorial, encompassing the three factors of the biopsychosocial model, however, the biological factors stand out. In addition, there was an emphasis on communication between the players and the coaching staff, which draws attention, evidencing that it is important that two-way communication is encouraged, preparing the athletes to report your symptoms and the technical coaching staff to welcome the complaint. Future studies are necessary to understand the expectations of the athletes about the physiotherapy treatment and for the investigation of the perception by the technical committee about your athletes shoulder pain.
Associação da condição socioeconômica na qualidade do sono de pessoas idosas que vivem em áreas de alta vulnerabilidade social
(Universidade Federal de São Carlos, 2025-02-27)
Guiesi, Pedro Henrique Machado
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Orlandi, Ariene Angelini dos Santos
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https://lattes.cnpq.br/1334146454214813
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https://orcid.org/0000-0002-3112-495X
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Inouye, Keika
The literature indicates that socioeconomic status, as well as aging, can lead to changes in sleep patterns. However, studies on income and sleep quality focused on community-dwelling elderly individuals have proven to be scarce. Thus, the present study aims to analyze the association between socioeconomic status and sleep quality of elderly individuals living in areas of high social vulnerability. This is a quantitative, descriptive, and cross-sectional study. The sample consisted of elderly individuals registered in Family Health Units located in areas of high social vulnerability in the city of São Carlos, São Paulo. Data collection was performed through interviews with the application of a characterization questionnaire developed for the study together with the Pittsburgh Sleep Quality Index. The data obtained were entered into a database in the Statistical Package for Social Sciences for Windows program for descriptive and comparative statistical analyses (Pearson's Chi-Square Test, Fisher's Exact Test, and Kruskal-Wallis Test). A total of 110 elderly individuals were interviewed and divided into three comparative groups based on family income tertiles. The sociodemographic profile of the sample was young, i.e., the average age was less than 70 years. The level of education was low. Individual and family incomes were less than 1.5 and 2.5 minimum wages, respectively. The elderly were predominantly female (55.5%), married (94.5%), brown (46.4%), retired (79.1%) and with a perception of insufficient income to meet daily demands (56.4%). The results indicate that, in the group of elderly people with high income, the proportion of individuals with very good subjective sleep quality was significantly higher when compared to the other groups. In agreement, the overall raw score related to poor sleep quality was significantly higher among elderly people with low income. It is concluded that socioeconomic status has negative implications on the sleep quality of elderly people living in areas of high social vulnerability.
Toxicidade do inseticida flupiradifurona no cérebro e intestino de Scaptotrigona postica (Latreille, 1807) (Hymenoptera, Apidae, Meliponini) e seus efeitos comportamentais
(Universidade Federal de São Carlos, 2025-02-27)
Castor, Rebeca Emanuelle da Silva
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Silva, Elaine Cristina Mathias
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https://lattes.cnpq.br/3993998796939609
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https://lattes.cnpq.br/9584528110570041
Bees are important and efficient pollinators of wild and agricultural plant species, but the population of these pollinators has been declining around the world. Among the various stressors responsible for this decline is the indiscriminate use of pesticides. Flupyradifurone, a pesticide released a few years ago in Brazil, was developed as a safer and less toxic alternative to neonicotinoid insecticides for the environment and non-target organisms such as bees. However, it is still necessary to understand the physiological and behavioral effects of this substance on native bees, since most studies with this pesticide use the Apis mellifera bee. In order to understand the effects of flupyradifurone on native bees, this study aimed to evaluate the influence of chronic oral exposure to an environmentally relevant concentration of flupyradifurone on the survival and locomotion behavior of Scaptotrigona postica, as well as to understand the impacts of this insecticide on the bees' brains and intestines. To carry out the survival bioassay, the bees were fed 50% m/m sucrose syrup containing the insecticide (exposed group) and only the syrup without the insecticide (control group) until the last individual died. For histopathological and behavioral evaluation, S. postica forager bees were exposed to flupyradifurone for 7 days and, after this period, individuals from the exposed and control groups were dissected to obtain organs and the individuals were filmed in the arena. It was observed that the presence of flupyradifurone does not interfere with bee survival, so that individuals from the control and exposed groups survived for a similar length of time. However, the insecticide is responsible for reducing the bees' locomotion behavior, which can compromise the tasks performed by the foragers in the colony. This behavioral change can be explained by the impact of the insecticide on the arrangement of the Kenyon cells (compacted and internal) that make up the internal neuronal part of the calyx of the pedunculated bodies, which are responsible for cognitive functions such as behavioral plasticity and associative learning. Exposure to the pesticide increased the distance between the Kenyon cells by between 1.9 and 2 times. In contrast, flupyradifurone did not negatively affect the morphology of the bees' midgut. Therefore, under laboratory conditions, the insecticide flupyradifurone interferes with Kenyon cells, potentially resulting in behavioral changes. However, these adverse effects do not interfere with bee survival, but may indirectly affect the performance of foraging activities within the colony after collecting floral resources in the field.
Diminuiçao do tempo de setup em linha de embalagem de comprimidos com base na metodologia SMED
(Universidade Federal de São Carlos, 2025-02-27)
Neto, Rubens de Abreu
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Gonçalves, Amilcar Flamarion Querubini
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https://lattes.cnpq.br/1742343294433199
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https://orcid.org/0000-0003-0280-9711
The use of machines in industrial processes has been growing, driven by the Industrial Revolution of the 18th century and continuing to grow with the accelerated evolution of manufacturing processes and global technological development. Production processes have undergone several evolutionary changes since the first Industrial Revolution, marked by the introduction of electricity and the implementation of assembly lines in the 19th century. It was during this period that Fordism and Taylorism were consolidated—structures of productive organization that were extremely important in the history of industry. Following this evolutionary path, industrial processes took on a new form in the 20th century, beginning with Toyotism, which adopted the just-in-time system, leading to automated and flexible production lines. This trend was further strengthened by the implementation of robotics, information technology, and electronics in production lines. Toyotism, combined with the technological developments of the 21st century, largely describes the current industrial scenario, where advances are constantly occurring. An example of this is the widespread use of continuous improvement initiatives and agile management methodologies in today's industry. Among the improvement and management tools are Scrum, Lean, Kanban, Nexus, 5S, PDCA, and SMED. SMED is a quick setup tool aimed at fully optimizing the steps and distribution of actions within a setup, resulting in a reduction of its execution time. SMED is extremely important in the current industrial scenario, where the same production line manufactures different products, requiring setup and tooling changes each time the product on the line is switched. Reducing this setup time directly impacts the performance and availability of production lines. This project describes the direct application of the aforementioned methodologies to reduce setup time on a tablet packaging machine in a pharmaceutical industry located in the interior of São Paulo, Brazil. This includes optimizing the sequencing of activities performed by employees when changing the machine’s tools during setups, improving the basic condition of the machine, and optimizing the adjustment process of the critical stages of the process.
Cálculo funcional associado a problemas com condições dinâmicas de contorno
(Universidade Federal de São Carlos, 2025-02-27)
Dalcy, Muriel Andreane
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Lopes, Pedro Tavares Paes
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https://lattes.cnpq.br/6790064280260422
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https://orcid.org/0000-0002-0204-5929
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Barostichi, Rafael Fernando
This work aims to study the holomorphic functional calculus associated with a problem with dynamic boundary conditions defined on $\Omega$, where $\Omega \subset \mathbb{R}^n$ is a bounded and connected open set with $C^\infty$ boundary $\Gamma = \partial \Omega$. Our main goal is to show that the sectorial operator associated with this problem has a bounded $H_\infty$ functional calculus and, for this purpose, we will utilize tools from the Boutet de Monvel calculus, as well as concepts from Functional Analysis.
Catalisadores de níquel-zircônia suportados em nanotubos de carbono para reação de metanação de CO₂
(Universidade Federal de São Carlos, 2025-02-27)
Oliveira, João Pedro Bueno de
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Santos, João Batista Oliveira dos
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https://lattes.cnpq.br/0285313473901330
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https://orcid.org/0000-0002-8872-0410
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https://lattes.cnpq.br/9424948456049602
The conversion of CO2 into methane via the methanation reaction has attracted significant interest due to its potential to mitigate greenhouse gas emissions and contribute to the production of sustainable fuels. In this context, nickel-based (Ni) catalysts stand out due to their high activity, selectivity, and favorable cost-effectiveness. However, the stability and resistance to sintering of Ni catalysts remain significant challenges. This study investigates the performance of Ni and Ni-ZrO2 catalysts supported on carbon nanotubes (CNTs) with the aim of optimizing their catalytic properties through the internal impregnation of active species. The impregnation of metals within the CNTs seeks to enhance the dispersion of metallic nanoparticles, reduce sintering, and increase the thermal and chemical stability of the catalysts during the reaction. The catalysts were prepared using the incipient wet impregnation method, employing functionalized CNTs as a support. Structural and textural characterization was performed using various techniques, including X-ray diffraction (XRD), nitrogen physisorption, thermogravimetric analysis (TGA), X-ray fluorescence spectroscopy (XRF), transmission electron microscopy (TEM), and temperature-programmed reduction (TPR-H2). These analyses allowed for the evaluation of morphology, metal dispersion, and the interaction between Ni and ZrO2 within the CNT supports. Catalytic tests were conducted in a quartz tubular reactor coupled to a gas chromatograph, operating at different temperatures (200–400°C) and using a molar H2:CO2 ratio of 4:1. CO2 conversion and methane selectivity were calculated based on carbon balance. Additionally, the stability of the catalysts was assessed through prolonged tests at 350°C for 24 hours. The results indicated that the combination of Ni and ZrO2 within CNTs significantly improves metal dispersion, leading to a larger active surface area and enhancing the efficiency of the methanation reaction. Catalysts prepared by co-impregnation exhibited superior performance in terms of CO2 conversion and CH4 selectivity compared to those prepared by sequential impregnation. The presence of ZrO2 was crucial for maintaining catalytic activity over time. Furthermore, it was observed that the impregnation of Ni after the addition of ZrO2 favored metal interaction, promoting a synergistic effect that enhanced catalyst stability. Based on the obtained data, it can be concluded that the use of CNTs as a support, combined with Ni and ZrO2, represents an efficient approach for developing more stable and effective catalysts for CO2 methanation. Catalysts employing the co-impregnation strategy demonstrated advantages in maintaining metal dispersion and thermal stability, making them a promising alternative for industrial applications focused on CO2 valorization and the production of sustainable synthetic fuels.
Desenvolvimento de aplicações para Cidades Inteligentes baseado na plataforma InterSCity
(Universidade Federal de São Carlos, 2025-02-27)
Citron, Jhon Wislin Ribeiro
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Ferrari, Fabiano Cutigi
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https://lattes.cnpq.br/3154345471250570
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https://orcid.org/0000-0002-7339-8529
Increasingly, technologies are being integrated into urban environments, such as hospital equipment, transportation systems, cameras, radars, and other devices. These technologies continuously generate data and communicate with each other, characterizing the scenarios of Smart Cities. The development of applications that assist and improve people's daily lives is essential, especially considering the population growth in urban centers. In this context, the InterSCity platform provides a development environment where data generated by different devices, such as sensors and actuators, can be simulated and used for testing and functional simulations of these applications. In this study, a case study was conducted using the InterSCity platform, demonstrating how it can be integrated into the development of applications for Smart Cities. As a result, an application focused on temperature monitoring in subway stations was developed.
O ensino de ciências na educação de pessoas jovens e adultas: análise das práticas pedagógicas desenvolvidas nos anos finais do ensino fundamental
(Universidade Federal de São Carlos, 2025-02-27)
Silvestre, David Antonio Palla
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Braga, Fabiana Marini
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https://lattes.cnpq.br/1103496815216263
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https://lattes.cnpq.br/0918753441382975
This research included the identification and analysis of the relationship between pedagogical practices and the learning of students in youth and adult education, considering science teaching in the final years of elementary school. In this way, theoretical references were used to foundation the areas of the present research, as the young and adult education, dialogical learning, dialogical society, successful educational practices, pedagogical practices and science teaching models. Regarding the methodology, the Preferred Reporting Items for Systematic Review and Meta-Analysis 2020 (PRISMA) were used to develop a systematic review and data collection was carried out in CAPES and Scopus Journals between 2018 and 2023. To analyse the 12 articles selected by the inclusion and exclusion criterias, the content analysis has used and selected four categories a priori. Regarding the results, it was possible to identify an excessive presence of the subjectivist conception in the articles, guiding pedagogical practices and, therefore, not contributing to the learning of scientific knowledge by all subjects. However, some limitations of these practices and the search, even if not declared, for practices closer to the dialogical society are evident, since those used by the constructivist model are no longer sufficient to achieve successful results in the learning of all students. At the end of the analysis, guidelines were outlined for the initial and continuing training of teachers, since updating the epistemological and methodological bases is a way of enriching education with the scientific advances that researchers have synthesized about it.
Prática pedagógica inovadora nas aulas de Educação Física: uma construção a partir do tênis de campo
(Universidade Federal de São Carlos, 2025-02-27)
Silva Junior, Francisco Lindosmar da
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Ramos, Glauco Nunes Souto
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https://lattes.cnpq.br/0134679842280022
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https://orcid.org/0000-0003-2644-2838
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https://lattes.cnpq.br/3097654395773741
The proposal for this study arose from concerns about pedagogical practices and their development during lessons, identifying three categories: traditional (sports-oriented), abandonment of teaching work ("just let them play"), and innovative practices. The term "innovative pedagogical practices" (IPP) stood out, and with the interest of better understanding this teaching approach, the objective of this study was to explore innovative pedagogical practices in Physical Education classes using tennis as a starting point. This qualitative research was conducted with 6th-grade students in a public school within a municipal education network in the interior of São Paulo, covering 19 tennis lessons. Data collection was carried out through lesson journals produced by the researcher, who was also the Physical Education teacher of the class.The analyzed data led to the identification of the following categories: a) Pre-game, in which the following codes were identified: content, methodology, theory vs. practice relationship, assessment, and schedule. These are concepts explored by the teacher even before engaging with students, incorporated into lesson planning, and revisited whenever adjustments are necessary. When well-planned, these concepts can support the development of an IPP. b) Our game, in which the following codes were identified: internal logic, external logic, adaptations, and student protagonism. These bring in concepts that can directly influence the development of activities when explored within the perspectives of IPP, facilitating content understanding, enhancing participation, and increasing student engagement. Throughout the research, it was possible to identify that actions surrounding IPP consist of multiple elements that require careful planning and teacher involvement, as well as reflection on ingrained teaching practices. It is necessary to break away from teaching models where the student is merely a passive recipient of knowledge and instead position them as protagonists in the teaching and learning process, while also exploring the various forms of knowledge derived from movement culture.
Educação moral e ética de estudantes: práticas corporais diversificadas na educação física escolar
(Universidade Federal de São Carlos, 2025-02-27)
Assumpção, Gustavo de Toledo
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Ramos, Glauco Nunes Souto
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https://lattes.cnpq.br/0134679842280022
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https://orcid.org/0000-0003-2644-2838
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https://lattes.cnpq.br/9304743854913497
Considering indiscipline as a significant issue related to teaching work, this study aimed to explore the benefits and possibilities that Physical Education (PE), as a curricular component, can offer in the development and reflection on students’ moral autonomy. The objective of this research was to analyze the implications of a pedagogical intervention through a didactic unit on moral and ethical education, using cooperative and oppositional physical practices, with a seventh-grade class from a public municipal school in a city in the interior of São Paulo State, with the purpose of understanding whether such practices would contribute to the development of students’ moral autonomy. A didactic unit comprising 12 lessons was structured and implemented, addressing school PE content (games, sports, dances, and combat activities). This qualitative study collected data through class diaries written by the teacher-researcher and a semi-structured interview conducted at the end of the didactic unit with participating students. The data were analyzed qualitatively, resulting in the following categories: (a) proactive and reactive attitudes of the teacher-researcher, in which the teacher-researcher was able to act proactively in didactic situations, presenting and building rules and guiding principles with students at the beginning of the school term, and also through planning and specific guidance provided in various situations; (b) proactive and reactive attitudes of the students, where, in a more reactive manner, the teacher identified opportunities to intervene and respond to situations of indiscipline, inappropriate behaviors, and interpersonal conflicts through proposed reflections; and (c) issues related to the school and school community, which revealed indirect situations, often beyond the teacher’s control, but that influenced the daily school dynamics and could affect student behavior, such as the value attributed to PE and education by students and the school community, characteristics of school organization as , physical space, materials, class schedules, among others. The study showed that PE can foster essential ethical and social competencies by providing experiences that encourage reflection on interpersonal relationships within a safe environment. The role of PE in citizenship education and value formation is reinforced, even if isolated interventions do not lead to significant behavioral changes. Pedagogical practices focused on moral and ethical values may contribute to the development of students’ moral autonomy. A perceived improvement in communication and a reduction in conflicts among students were reported, despite the persistence of some undisciplined behaviors.
Tarefa escolar para casa: análise dos saberes envoltos nesta prática
(Universidade Federal de São Carlos, 2025-02-27)
Nunes, Izabella
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Souza, Ana Paula Gestoso de
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https://lattes.cnpq.br/2662760426985944
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https://orcid.org/0000-0002-2015-0829
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https://lattes.cnpq.br/9747663908957516
Homework is a widespread educational practice in Brazilian schools; however, it remains underexplored, as it is only marginally addressed in national academic educational discussions. This reality gave rise to the central question of this study: what are the conceptions, knowledge, and practices of teachers working in the early years of primary education regarding homework? The research aims to analyze teachers’ understanding of homework from the perspective of Teacher Knowledge. This is an exploratory study with a qualitative approach, based on two stages of data collection: a questionnaire and a semi-structured interview. The data analysis is grounded in Bardin’s (2011) framework of Content Analysis. The study draws on discussions around Teacher Knowledge, Observational Learning, and engages scholars in the fields of Teacher Education, Curriculum Studies, among others. The research revealed that, although widely recognized by teachers as an essential practice for teaching and learning, there is a significant gap in teacher training, as 74.4% had not addressed the topic during initial training and 68% reported no discussions during continuing education. Incorporated into pedagogical planning, TEC serves functions such as content reinforcement, development of student autonomy, family engagement, and reflection, yet it remains largely focused on task execution with little critical assessment. The analysis showed that TEC reflects teachers’ interpretations of the curriculum, influencing pedagogical organization and acting as a formative tool. Understood as a “device in-between” (Certeau), homework lies between institutional norms and everyday creative possibilities, potentially fulfilling roles similar to Student Support Devices, such as learning monitoring and pedagogical adaptation. The findings suggest that, when intentionally planned, TEC strengthens both student and teacher autonomy, although its transformative potential is currently limited by the lack of structured theoretical debate in training contexts. Ultimately, the study proposes that homework should transcend its traditional role and be configured as an intentional and innovative pedagogical device, systematically integrated into teacher education to foster both students’ holistic development and teachers’ professional growth.
Descrição da fragmentação estrutural de tweets do mercado financeiro via relação de “parataxis” do modelo “Universal Dependencies”
(Universidade Federal de São Carlos, 2025-02-27)
Freitas, Isabela Santos de
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Di Felippo, Ariani
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https://lattes.cnpq.br/8648412103197455
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https://orcid.org/0000-0002-4566-9352
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https://lattes.cnpq.br/2430643881413968
One of the characteristics of tweets (now X posts) is fragmentation, as many of them are made up of sequences of segments with no explicit syntactic connection between them. These segments can be sentences, short syntagms or even fragments of these that are just juxtaposed. When a corpus is grammatically annotated according to the Universal Dependencies (UD) model, the structural fragmentation of utterances is captured by the parataxis dependency relation (deprel). In general terms, this deprel is used to note that two juxtaposed segments of the same utterance have no clear syntactic relationship between them, and can be specified by sub-tags. In this work, we described the fragmentation of financial market tweets in the DANTEStocks corpus via deprel. To this end, the occurrences of parataxis, with and withoutsub-labels, were extracted from the corpus and organized semi-automatically according to simple frequency. Of the total of 6,733 occurrences, 3,840 cases (57%) have no sub-relation and 2,893 cases (43%) have different sub-relations. Next, all occurrences of parataxis, with and without sub-relationships, were automatically organized according to the frequency of combinations between the morphosyntactic(or part-of-speech - PoS) labels of the head and dependent and the order of the labels. With the exception of parataxis:strunc and parataxis:wtrunc, the other types with sub-relation, i.e. parataxis:hashtag, parataxis:cashtag and parataxis:url, have lexical dependents, as they are equivalent to just one word/token. The dependents of parataxis:hashtag and parataxis:cashtag are X or PROPN and of parataxis:url, SYM. The cases of parataxis:strunc and parataxis:wtrunc can have lexical or structural dependents (syntagms or truncated sentences). The order of the head and dependent in parataxis:hashtag and parataxis:cashtag varies, while in parataxis:url, parataxis:strunc and parataxis:wtrunc it is always from left to right. Regarding parataxis without sub-relation, the most frequent combinations of PoS are VERB (root) + VERB/NOUN/PROPN and NOUN (root) + VERB/NOUN/NOUN, indicating that the fragmentation of tweets commonly involves juxtaposed verbal and nominal segments. With this, this work contributes to increasing the body of knowledge about the linguistic characteristics of DANTEStocks, which is the first corpus composed of tweets with UD annotation in Portuguese, and has already allowed the training and evaluation of some NLP tools for UCG.