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Uma Torre e um Farol nas terras do Horror: "Silvestre" (2019), de Wagner Willian, como centro autoral e a editora Darkside® Books como horizonte de produção literária especializada
(Universidade Federal de São Carlos, 2025-04-16)
Messias, José Victor
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Salgado, Luciana Salazar
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https://lattes.cnpq.br/5206927424265495
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https://lattes.cnpq.br/0627593955136715
What a book can tell about its publishing house? “Silvestre” (2019), from Wagner Willian, is presented in the Darkside® Books’ publisher site after a brief explanation about “Walden ou A vida nos Bosques” (1894), from Henry David Thoreau. In what kind of data it can transforms to? In this research, the winner comics of Prêmio Jabutis’ in it’s 2020 edition is taken as a medium (Debray 2002), a discursive device that shows itself as the means of contact between a conceptual dimension and the possibilities of its material incarnation. This research, made from Grupo de Pesquisa Comunica – Inscrições Linguísticas na Comunicação (UFSCar/CEFET-MG, CNPq) deploypments is part of a trajectory dedicated to study discursively the incarnations of social anxyeties in technical objects (Simondon, 2018), through the aproach of the discursive-mediology, based in the literary discurse (Mainguenau, 2018). Futhermore, this trajectory is also embased on J. Halberstam’s deployments in “Skin shows: gothic horror and the technology of monsters” (1995), and follows an advance in the author’s theory by proposing that, from a visual materialization, in addition to its constitution through words, the monster is also, in itself, an editorial object (Salgado, 2020), therefore its technology as a narrative synthesis can be a way of accessing the discourses mobilized by the work and it’s literary value, also through the materiality that conveys it – the monster is the work and vice versa (Messias, 2023). Through the discursive-mediological methodology, the diachronic and synchronic dimensions will be analyzed as carriers of ideas in the materialities of the Wagner Willian’s (2019) comic and how it connects itself to the work of Henry David Thoureau (1854), and how it represents the Darkside® Books universe. Therefore, develops in this research an analysis about “Silvestre” (2019) to lecture about its status as a Darkside® Books’ medium and how it constitutes its literary value trhough a valuation system based on literary pratices.
Influência do cerebelo no processamento de funções não-motoras - revisão da literatura e estudo experimental
(Universidade Federal de São Carlos, 2025-04-16)
Prati, José Mário
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Gianlorenço, Anna Carolyna Lepesteur
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https://lattes.cnpq.br/3861050459671690
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Russo, Thiago Luiz
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https://lattes.cnpq.br/2755480908047791
The cerebellum is a structure widely recognized for its role in motor functions, such as movement control, motor learning, and balance. However, its participation in non-motor processes, such as emotions and cognitive functions, has been increasingly attracting interest. The functional network and connectivity of the cerebellum remain open areas of study, and both clinical and preclinical research have been dedicated to identifying these connections to gain a better understanding of cerebellar neurophysiology and its influence on other brain regions in various functions. STUDY 1 - OBJECTIVE: This study aimed to identify and synthesize the evidence in the literature regarding the activation and connectivity of the cerebellum with other brain structures involved in processing various functions. METHODS: A comprehensive literature search was conducted in the PubMed and Google Scholar databases using different search terms to identify clinical and preclinical studies related to cerebellar involvement in different functions, including sensory, motor, autonomic, cognitive, and emotional functions. The retrieved studies were summarized and presented in topics corresponding to the respective functions. RESULTS: It was demonstrated that regions of the anterior lobe of the cerebellum are more involved in motor control, proprioceptive and graviceptive signal integration, and reward anticipation. On the other hand, regions of the posterior lobe, including the cerebellar hemispheres, are more involved in processing eye movements, cognition, emotions, and auditory functions. It was also observed that similar cerebellar regions are activated in different functions, leading to the understanding that the same cerebellar region may simultaneously contribute to processing multiple functions. We hypothesize that microzones specialized in different functions may co-activate to support multimodal behaviors. CONCLUSION: The anterior cerebellar lobe plays a greater role in sensory-motor processing, whereas the posterior lobe is more involved in cognitive and emotional functions. Additionally, some cerebellar regions, such as lobules VI and VII, seem to act as integrative areas, as they are frequently described as participating in most of the investigated functions. STUDY 2 - OBJECTIVE: This study aimed to identify in the literature the main cerebellar activation regions in nociception and pain processing, as well as their connections with other nervous system regions involved in this process. METHODS: Searches were conducted in the PubMed and Google Scholar databases using specific search terms related to the study’s theme to obtain a comprehensive overview of factors associated with pain processing. Clinical and preclinical studies addressing the topic were selected. Cerebellar activation in response to nociceptive stimuli, the location of cerebellar activation, and its connections with other brain regions involved in nociception and pain processing were analyzed. RESULTS: The primary cerebellar regions involved in nociception and pain processing are lobules IV, V, VI, VII, Crus I, and Crus II. The cerebellum can communicate with brain structures involved in processing different dimensions of pain, as well as in pain modulation; however, studies investigating this hypothesis are still lacking. Research shows that cerebellar modulation reduces pain intensity by increasing the pain threshold and enhancing endogenous pain inhibition processes. CONCLUSION: The cerebellum may be involved in the multidimensional processing of pain and exert influence on pain modulation through its extensive connections with brain structures engaged in these processes. STUDY 3 - OBJECTIVE: This study aimed to analyze neuronal activation in the cerebellum in different spatiotemporal contexts involved in emotion and emotional memory processing, as well as its connections with other brain structures in animals. METHODS: A total of 43 naïve Swiss Albino mice were used. The animals were divided into four groups: Inhibitory Avoidance, Shock, No Shock, and Control Group. For behavioral assessment, the animals were exposed to the Inhibitory Avoidance apparatus, inferring emotion and emotional memory, for 1, 4, and 8 days in different exposure contexts. After the final exposure of each group to the assessment apparatus, euthanasia was performed, followed by transcardiac perfusion with 4% paraformaldehyde and brain extraction. The brains were sectioned at 40 μm for c-Fos immunofluorescence analysis in predefined structures. Microscopic images of brain structures were captured for the analysis of immunofluorescent cells. One-way ANOVA or the Kruskal-Wallis test was applied to the immunofluorescence analysis data, followed by the appropriate post-hoc test. Spearman’s correlation coefficient was used to analyze the correlation between the coefficients of brain structures. RESULTS: There was an increase in c-Fos expression in cerebellar lobules IV-V (p = 0.01). Dunn’s multiple comparisons test showed a significant difference in c-Fos expression between the Inhibitory Avoidance-4 days group and the Control Group (p = 0.01). An increase in c-Fos expression was also observed in cerebellar lobule VI (p = 0.01). Dunn’s multiple comparisons test indicated a significant difference in c-Fos expression between the Inhibitory Avoidance-4 days and Shock-4 days groups (p = 0.01). No significant difference was found in c-Fos expression in other regions of interest. Spearman’s correlation coefficient test did not show correlations between the coefficients of the regions of interest in the Inhibitory Avoidance-4 days Group. CONCLUSION: Lobules IV-V and VI were the cerebellar regions with the highest activity in animals that performed the Inhibitory Avoidance task for four days, suggesting involvement in emotion and emotional memory. GENERAL CONCLUSION: The cerebellum is involved in the processing of various functions performed by the nervous system. Once its anatomical and functional interaction with other brain structures also involved in this processing is clarified, the cerebellum could become a therapeutic target for the treatment of painful and psychiatric conditions.
Efeitos das condições iniciais do solo na estrutura da floresta e no estoque de carbono numa área em restauração
(Universidade Federal de São Carlos, 2025-04-16)
Silva, Camila Morais Ramos
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Souza, Andréa Lúcia Teixeira de
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https://lattes.cnpq.br/5216112068627151
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https://lattes.cnpq.br/5832518174901727
Deforestation in tropical regions leads to substantial changes in soil organic matter content, affecting the soil microbial community, nutrient cycling, and the degradation of soil structure. Certain human activities, such as dairy cattle milking facilities, can cause an excessive input of organic matter into the soil, which may increase soil nutrient availability through waste runoff. However, there is a lack of information regarding the effect of organic matter input on the structure of a restored forest, particularly after a decade following the implementation of restoration actions. In a deforested riparian forest area in the southeastern region of the São Paulo state, a forest restoration project was initiated in 2013. Part of this area received waste runoff from a nearby milking facility. The organic matter input into the soil, combined with the positioning of the milking facility at one end of the restoration site, resulted in forming a soil fertility gradient across the restored area. This study assessed whether the initial soil conditions observed during restoration implementation influenced forest structure approximately 11 years after restoration. Specifically, we evaluated the effect of initial soil conditions on total tree basal area, tree density, the number of regenerating individuals, stratification and litterfall accumulation, and the carbon stock stored in the aboveground biomass of the restored forest. At the beginning of the restoration process, soil samples were collected at a depth of 0–20 cm from 10 plots distributed across the entire area. Approximately 11 years after seedling planting, we measured the height and diameter of all trees within these plots, which were used to estimate forest structure parameters. Additionally, we collected accumulated litterfall from five subsamples within each plot. Forest structure exhibited spatial variation within the restored area as a function of initial soil conditions. Areas closer to the milking facility developed denser forests with more regenerating individuals, higher basal area and stratification, and greater litterfall accumulation. Conversely, locations farther from the milking facility displayed lower tree density and fewer regenerating individuals, resulting in a less stratified forest with lower litterfall accumulation. Initial soil conditions positively influenced the carbon stock in the aboveground biomass of trees in the restored forest. Our results demonstrate that the amount of organic matter present during initial seedling planting positively influenced the speed of forest structure recovery and carbon sequestration 11 years later. These findings suggest that soil improvement by adding cattle manure in degraded areas with low organic matter content could enhance the efficiency of tropical forest restoration projects.
Investigação de precocidade por meio do Inventário Portage Operacionalizado em uma criança na creche
(Universidade Federal de São Carlos, 2025-04-17)
Oliveira, Maria Isabela de
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Rangni, Rosemeire de Araújo
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https://lattes.cnpq.br/6399149504309769
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https://orcid.org/0000-0002-8752-9745
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https://lattes.cnpq.br/6754671018070505
Early identification and pedagogical support for students with precocious characteristics in the various areas of ability are recommended by specialized literature, however, this task comes up against a lack of instrumentation for this purpose. With this in mind, the general aim of this research was to investigate indicators of precocity in a child of nursery school age, using the Inventário Portage Operacionalizado (IPO) and, specifically, to check whether the signs of precocity in a child of nursery school age, previously assessed, were still present. The methodological design used was exploratory-descriptive and longitudinal research. A three-year-old child took part in the study with her mother and teacher as sources of information. The results obtained were: i) Motor development showed approximate scores for her age group (14 points out of 15) and more than 80% beyond her age; ii) in Language, in her age group (14 points out of 15) and more than 80% beyond her age; ii) in Language, the child scored beyond her age group (12 points out of 15); iii) in Self-care, she achieved the expected score for her age group (13 out of 14 points); iv) in Socialization, the child obtained 9 expected points out of 11 and more than 50% expected beyond her age; and v) in Cognition, the child scored 20 out of 24 points expected for his age group and 67% above. The conclusion is that, at the time research, the child aged three years and five months showed characteristics superior to her age group, as observed through the IPO, and the instrument proved to be effective in signaling early potential in nursery children.
Seleção de conteúdos no curso de iniciação musical para crianças do programa Guri
(Universidade Federal de São Carlos, 2025-04-17)
Bergantin, Eglem das Neves
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Galizia, Fernando Stanzione
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https://lattes.cnpq.br/4007795540173093
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https://lattes.cnpq.br/4697488433273341
This study was based on the question “What, why and for what purpose do teachers of the Guri’s Musical Initiation for Children (GMIC) course teach what they teach?” Based on this question, the general objective of this research was to investigate, from the teachers’ perspective, the content selection process in the GMIC course. As specific goals, we aim to: identify which contents are worked on by teachers; investigate why they select these contents and why they consider them valid musical knowledge for GMIC; and verify, in their opinion, what is the purpose of the music teaching they carry out. As reference authors, we based ourselves on Gimeno Sacristán (2013) in the area of curriculum, Zabala (1988) on the typology of content, Contreras (2002) and his conception of professional autonomy of the teacher, Libâneo (2013) and the criteria for content selection, Chervel (1990) and Goodson (1995) in the field of the history of subjects, Fonterrada (2008) on the history of music education in Brazil, and Keith Swanwick (1979) and his C(L)A(S)P model. As a data collection method, we used the semi-structured interview, a method in which six teachers of the GMIC course, from different locations in the State of São Paulo, were interviewed. The analyses demonstrated that there is a strong influence of the conservatory model in the GMIC course. However, the characteristics of the conservatory model coexist with the approaches of active methods in music education, pointing to a transition phase in the conception of music teaching for children. We found in the data that the basic musical parameters are hegemonic content and inherited in music teaching for children; also, we notice the imbalance between musical activities in the curriculum (mainly, the low presence of composition), the loss of teacher’s autonomy due to structural issues of Guri, and the fragility of the professional area of music teaching.
Caracterização química e potencial energético da biomassa derivada da casca de coco verde
(Universidade Federal de São Carlos, 2025-04-17)
Martins, Luís Henrique Pereira
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Gomes, Janaina Fernandes
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https://lattes.cnpq.br/6718634914051168
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https://orcid.org/0000-0002-9542-8944
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https://lattes.cnpq.br/5166997488299326
Since the end of the 20th century, growing concerns about rising greenhouse gas emissions and the resulting global warming have driven the search for renewable energy sources, such as solar, wind and biomass, the latter mainly involving the burning of organic matter from wood waste. In this context, biomass derived from coconut husk bagasse, although less explored compared to other sources, such as sugarcane bagasse, eucalyptus firewood and agricultural waste, has emerged as an alternative for the production of renewable energy. In addition to its energy potential, the use of coconut husk bagasse can contribute to promoting environmental sustainability, particularly in urban areas where excessive disposal of coconut waste becomes a problem. Locations such as kiosks and coconut processing facilities are often responsible for high volumes of waste that could be used to reduce the accumulation of garbage and, at the same time, provide a source of renewable energy. Investigating green coconut bagasse is essential to understanding its chemical composition and its potential as a biomass. Thus, the objective of this work is to study the chemical composition of green coconut bagasse based on the procedures of specific standards of ABNT NBR. This analysis allows the evaluation of the presence of water (moisture), cellulose and lignin, in addition to potentially significant levels of carbon and nitrogen, essential elements for determining the energy potential of the material. Based on these results, the possibilities of using green coconut bagasse as a sustainable source of energy in industrial and/or commercial applications will be explored, aiming to advance discussions on the diversification of the Brazilian energy matrix and possible strategies for mitigating the environmental impacts associated with conventional energy sources.
Modelo de predição de impactos ambientais de produtos baseado na avaliação do ciclo de vida integrada à inteligência artificial
(Universidade Federal de São Carlos, 2025-04-22)
Salla, João
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Almeida, Tiago Agostinho de
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https://lattes.cnpq.br/5368680512020633
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https://orcid.org/0000-0001-6943-8033
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Silva, Diogo Aparecido Lopes
It is estimated that 78% of American consumers and 70% of Brazilian consumers already value more sustainable lifestyles, primarily due to personal well-being and concerns for future generations. However, climate risks are already a reality and complex to address, requiring swift and effective responses. This underscores the importance of integrating techniques such as Life Cycle Assessment (LCA) and Machine Learning (ML) to support environmental decision-making in a rapid and reliable manner. LCA, regulated by ISO 14040 and ISO 14044, requires significant time and large volumes of data for its execution. On the other hand, ML, with its data processing capabilities and predictive modeling, offers a solution to significantly reduce this analysis time. This study aimed to propose and test decision-support models using ML trained with LCA datasets to predict environmental impacts. This exploratory research is structured into two main articles. The first reviews the literature on computational techniques and modeling languages for environmental impact prediction, with the objective of assessing the current state of LCA+ML integration. The second article applies ML models in three different tests, utilizing LCA datasets and comparing prediction results. The primary challenge of this research was managing the heterogeneity of LCA data, as different databases use varied formats, such as ecoSpold and ILCD, impacting interoperability. Open-source software, such as OpenLCA, was employed to ensure compatibility and portability across the 1,219 datasets evaluated using ML. The key outcome was a refined decision-support model that enables the entire training pipeline, from sample generation through data export from LCA databases to ML model performance analysis. It is expected that the developed support model will guide LCA and ML users, offering a replicable approach for other sectors and contexts.
Esfarelamento do dualismo digital na contemporaneidade: uma leitura tecnodiscursiva
(Universidade Federal de São Carlos, 2025-04-22)
Sousa, Carlinho Viana de
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Baronas, Roberto Leiser
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https://lattes.cnpq.br/4613001301744682
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https://lattes.cnpq.br/1077943769216031
The discourses formulated, constituted, and circulated in the web environment are posing methodological, epistemological, and scientific challenges to traditional Discourse Analysis. This work is situated within the field of Digital Discourse Analysis, aiming to examine digital discourses native to the web—technodiscourses—where the "techno" and the "discursive" are two inseparable, co-constituted elements. To separate them implies a digital dualism: on one side, machines (the virtual world); on the other, humans (the real world)—that is, two distinct realities. With the goal of adopting a technodiscursive approach, we analyzed a multifaceted research corpus composed of the film The Emoji Movie, online comments about the film, and the analytical human-machine interaction with ChatGPT AI. Two approaches were employed: pre-digital and digital. In the pre-digital approach, grounded in Maingueneau’s enunciative theory and intersecting with theorists who discuss digital dualism, we examined the crumbling of boundaries between the real and the virtual. This stage of the research revealed that when people are offline, digital dualism still persists in some form; however, when they are online, this dualism begins to disintegrate, liquefy, and hybridize. They participate in a simulated society, where software (in this case, emojis) simulates human life. In the digital approach, the corpus was analyzed by the ChatGPT AI in a process of technodiscursive co-construction, in which human and machine, connected, produced discourse and cognition within an online environment. This reflects an ecological approach to discourse, aligned with the main argument of this thesis: that the process of technodiscursive co-construction gives rise to a simulated society, where humans, machines, software, and digital environments co-produce integrated, multiple discourses and cognitions—all deeply intertwined with the most essential technology: language.
A locação via Airbnb nas dinâmicas de ocupação imobiliária residencial da orla marítima de Aracaju
(Universidade Federal de São Carlos, 2025-04-23)
Trindade, João Vítor Araujo
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Castro, Carolina Maria Pozzi de
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https://lattes.cnpq.br/2178910002833930
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https://orcid.org/0000-0002-1828-7615
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https://lattes.cnpq.br/5835543045188522
This dissertation proposes a contribution to the understanding of the impacts resulting from the actions of financialized agents guided by rentier capitalism on real estate dynamics and how they transform the urban space, especially after the digitalization process. In this context, the focus of the study is Airbnb, a global Short-Term Rental platform, exponent of the sharing economy and associated with a variety of urban phenomena such as gentrification and touristification, thus altering the dynamics of cities through tourism. The observation of the platform was related to its operations in the city of Aracaju, capital of the state of Sergipe, where processes of association between the State and real estate capital guided local urban development. The relationship between the real estate and tourism sectors in the housing production and occupation in the neighborhoods along the Aracaju coastline is evident, including aspects of segregation and environmental appropriation. In this sense, the work aims to analyze the relationship of mutual influence between the offer of accommodations of the platform and the real estate dynamics of the city. It is contended that Airbnb promotes the vacancy and idleness of housing units, repurposing them for functions other than housing. This is purportedly done to increase their rental value and favor the neoliberal logic of individualistic entrepreneurship. Aracaju, being a city outside the major economic centers of national capitalism and not part of the traditional tourist circuit, has shown low levels of financial activity within the dynamics of Airbnb in the city. On the other hand, the real estate dynamics in the occupation of coastal neighborhoods demonstrate a tendency towards a rentier appropriation of the coastal landscape, and the insertion of Airbnb in this system deepens the relationships already established. The data collected on the platform's activity indicate a relatively high presence of accommodations when compared to similar cities in Brazil. The high proportion of entire spaces stands out, as well as the relevance of professional hosts in the local offer. Thus, the dominance of a rentier logic of appropriation of space, landscapes and the environment is validated.
Entre livros e fraldas: uma análise discursiva das representações e práticas institucionais sobre mães estudantes universitárias na UFSCar
(Universidade Federal de São Carlos, 2025-04-23)
Rodrigues, Vanessa Aparecida
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Araújo, Lígia Mara Boin Menossi de
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https://lattes.cnpq.br/7893136450669304
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https://lattes.cnpq.br/7214966200285084
The impact of motherhood on women’s lives has generated debates in many spaces, specially in Brazilian public universities. In this context, the Parent in Science Movement seeks to understand, give visibility to, and propose solutions for the challenges faced by people with children, in the academic and scientific fields in Brazil. Although the current legal framework of access and permanency in higher education represents progress, it still shows a need of specific and comprehensive mechanisms to assist the students diverses demands who balance motherhood and academic life. Inspired by these discussions, this research formulates the following questions: how do institutional documents that regulate higher education discursively construct the image of women in the role of mothers as higher education students? In what way does the construction of these documents, regarding the figure of the “student mother”, influence and condition the discursive practices of mother-students in undergraduate and graduate courses in UFSCar? To answer these questions, we adopted as a theoretical and methodological basis the French Discourse Analysis (DA), based on the propositions of Michel Pêcheux (1969) about discursive formations, discursive memory, interdiscourse and mainly, imaginary formations. Initially, the investigation analyzes the construction historicity of the female roles in Brazilian society, aiming to identify the interdiscursive knowledge that functions as a reservoir of already produced and forgotten discourses that, however, conditionate and make possible the production of new (old) discourses about women. Based on this historical contextualization of women in society and in education, the analysis is directed to a set of eleven institutional documents from the State, which regulate higher education (laws, decrees, ordinances, regulations, regiments and internal policies), seeking to verify the current discursive practices related to women and student motherhood. Subsequently, based on statements taken from posters of student manifestations (expressing the demands of student mothers), we mobilized the concept of interdiscourse to describe/interpret the transversal and pre-constructed discourses that permeate the discourses of these posters. In this way, we demonstrate how discourses from the past, albeit in implicit form, resonate in present discourses, enabling others discursive formations.
Desenvolvimento de um sistema de aquecimento por radiação com lâmpadas infravermelhas para utilização em manufatura aditiva
(Universidade Federal de São Carlos, 2025-04-24)
Govoni, Valter Cesar
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Malavolta, Alexandre Tácito
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https://lattes.cnpq.br/8477313173581967
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https://lattes.cnpq.br/8111798381904307
In the modern manufacturing process research for new materials and different manufacturing methods has intensified with the purpose of increasing production, quality and easy of assembly of parts more complex. One of these technologies is 3D Printing, also known as Manufacturing Additive, which began to emerge in the 1980s with the purpose of producing prototypes three- dimensional, and currently joined in the final manufacture of products through the physical creation of a three-dimensional digital model depositing successive layers of material, until obtaining the finished piece. Despite already although there are several types of 3D printing, they are all based on the same principle of deposition by layers, but is constantly modernizing, only the material deposited varies. In this context, the present research aims to investigate the effect of temperature on the mechanical strenght and surface quality characteristics of parts printed using the FPM (Fused Pellet Modeling) technique, using the ABS (acrylonitrile butadiene styrene) polymer. To this end, a still unusual low-cost complementary heating system was developed using infrared lamps integrated into a large-scale 3D printing manufacturing cell. The main objective is to verify how additional temperature can inprove the mechanical resistance and surface quality of large-volume parts produced. Also, as the part is being built, sensors read the temperature of the part in real time, and via wireless connection, the values of these measured temperatures are sent to a data recorder, which is a computer mounted remotely near the manufacturing cell, where they can be analyzed in real time or later, in the form of tables or graphs.
Abordagens para reagendamento de voos de helicópteros em uma empresa de óleo e gás natural
(Universidade Federal de São Carlos, 2025-04-24)
Fantazzini, Tarley Mansur
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Munari Junior, Pedro Augusto
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https://lattes.cnpq.br/1328868140869976
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https://orcid.org/0000-0001-5929-593X
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Morabito Neto, Reinaldo
Air transportation of passengers relies on prior planning of scheduled flights. However, unforeseen events may affect this scheduling, making recovery and rescheduling actions necessary. In this context, the Aircraft Recovery Problem (ARP) arises, aiming to reschedule flights affected by such disruptions. This work addresses a specific ARP faced by a Brazilian oil and natural gas extraction company operating offshore platforms, where third-party helicopters are used to transport employees between airports and maritime units. Several optimization-based approaches are proposed to model and solve this problem. Initially, hierarchical goal programming was applied with three sequential objectives: minimizing the number of postponed flights, helicopter usage, and total delays. Optimal or near-optimal solutions were obtained with low computational times for instances with up to 50 flights. Subsequently, multi-objective models were adopted, including the weighted Chebyshev metric and the approach proposed by Lokman and Köksalan, enabling the identification of non-dominated solutions that compose the Pareto frontier. These methods showed promising results, with computational gaps below 12% and reduced execution times, even with a shortened time limit. To complement the deterministic approaches, stochastic programming techniques were incorporated to handle uncertainties in the problem parameters, aiming to capture and analyze the variability and risks associated with uncertain values such as flight time between the airport and maritime units. The integration of deterministic and stochastic approaches provided a comprehensive and flexible analysis of this ARP, enabling result optimization in both controlled and uncertain scenarios, and contributing to more effective management of aircraft recovery operations.
Impactos das Mudanças no Uso e Cobertura do Solo na Produção e Exportação de Sedimentos na Bacia Hidrográfica do Alto Paranapanema
(Universidade Federal de São Carlos, 2025-04-24)
Boniolo, Vinicius Rainer
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Martensen, Alexandre Camargo
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https://lattes.cnpq.br/1608659358382981
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Mello, Kaline de
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https://lattes.cnpq.br/1974531968891537
Changes in land use and land cover are important drivers of environmental degradation in watershed areas, intensifying erosive processes and compromising the provision of ecosystem services that regulate water quantity and quality. This dissertation aimed to assess the impacts of such changes on sediment production and export in the Upper Paranapanema River Basin (BH-ALPA), located in the state of São Paulo, through multitemporal modeling based on four decades (1987, 1997, 2007, and 2017), spatial pattern analysis associated with different land use types, simulation of scenarios involving the restoration of Permanent Preservation Areas (APPs) and soil conservation practices, and validation of the modeled data with direct field measurements. The work was structured into three integrated chapters: a theoretical review, multitemporal modeling, and an applied evaluation in micro-watersheds with different land use matrices. Chapter 1 consisted of a literature review aimed at understanding the relationships between land use, erosive processes, and environmental management strategies in watersheds. This review discussed the main natural and anthropogenic factors driving soil degradation, with emphasis on the role of vegetation in controlling erosion. It also presented a critical analysis of the main models used to estimate erosion and sediment transport in watersheds, including empirical models (such as RUSLE) and semi-empirical/semi-distributed models (such as MUSLE, SWAT, AnnAGNPS, and SDR-InVEST), justifying the adoption of the SDR-InVEST model in this research. In Chapter 2, the model was applied to estimate sediment production and export in BH-ALPA for the years 1987, 1997, 2007, and 2017, based on land use data from the MapBiomas platform. The results indicated a significant increase in sediment export over recent decades, associated with the intensification and conversion of landscapes for agriculture. The modeling also made it possible to test scenarios of APP restoration and the implementation of conservation practices. Chapter 3 deepened the analysis of the influence of land use and land cover on water quality in four sub-watersheds with different landscape matrices: agriculture, pasture, and forest. Flow and physicochemical parameters of the water were collected over seven sampling campaigns and analyzed through descriptive, correlational, and multivariate statistical methods. The results revealed distinct patterns among land use types, with greater stability in forested areas and higher variability in intensively managed agricultural landscapes. Overall, the research highlights the importance of integrating soil conservation strategies into territorial planning in watersheds. Conservation practices, restoration of degraded areas, and the protection of APPs are shown to be essential for reducing sediment export and ensuring the maintenance of ecosystem services.
Resolução de problemas de matemática da Olimpíada Brasileira de Matemática das Escolas Públicas sob a visão da metodologia de Polya
(Universidade Federal de São Carlos, 2025-04-24)
Batista, Ailton Cecílio
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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
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https://lattes.cnpq.br/4397355751940879
The objective of this work is to use Pólya’s problem-solving methodology as a tool for teaching and learning geometry concepts in the classroom. The study was developed based on four exercises from the question bank of the Brazilian Mathematics Olympiad for Public Schools (OBMEP), addressing topics such as perimeter, area, and formation rules. In addition to analyzing Pólya’s methodology, a generalization of the worked-out problems was made, which constitutes one of the main objectives of the book How to Solve It. This entire process was conducted in alignment with the skills and competencies outlined by the National Common Curricular Base (BNCC).
Síntese e funcionalização de compostos heterocíclicos visando a descoberta de fármacos antivirais
(Universidade Federal de São Carlos, 2025-04-25)
Santos, Jhonathan Renner Nunes dos
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Corrêa, Arlene Gonçalves
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https://lattes.cnpq.br/7425467156776144
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https://orcid.org/0000-0003-4247-2228
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https://lattes.cnpq.br/3969751736153847
The humanity has faced numerous viral epidemics, significantly impacting daily life. Notable examples include infections caused by dengue and Zika virus, as well as the COVID-19 pandemic caused by the SARS-CoV-2. In this respect, the scientific community mobilized a task force to develop vaccines and new therapies. Drug repurposing also played a crucial role during this period, as seen with remdesivir, a C-glycoside originally developed to combat the Ebola virus, that became one of the first drugs approved for emergency use against SARS-CoV-2. Despite having a well-established synthetic route, remdesivir production still posed challenges, prompting various research groups to optimize steps with low yields or harsh reaction conditions. In this context, the objective of this thesis was to synthesize C-glycoside analogs using more sustainable methods, such as C-H functionalization of N-heterocycles via photochemical processes and multicomponent reactions. Once these compounds were synthesized, their biological activity was evaluated against the proteases Mpro and PLpro of SARS-CoV-2 and NS2B-NS3Pro of the Zika virus. Concerning the C-H functionalization of N-heterocycles, 14 compounds were synthesized, with yields ranging from 10% to 81%. The developed protocol demonstrated to be regioselective, enabling the formation of a C-C bond at the C-7 position of pyrrolo[2,1-f][1,2,4]triazine. Then, 38 compounds were obtained, including derivatives of dihydropyrimidine-2(1H)-ones/thiones (DHPMs), coumarins, DHPM-coumarin hybrids, and coumarin dimers. These compounds have demonstrated potential in inhibiting the viral activity of SARS-CoV-2 and the Zika virus. For SARS-CoV-2, seven compounds showed promising activity against the Mpro enzyme, with IC50 values ranging from 4.8 to 87 µM. Six compounds exhibited effectiveness against PLpro, with IC50 values between 21 and 81 µM. Regarding the Zika virus NS2B-NS3Pro, seven compounds displayed activity, with IC50 values ranging from 0.4 to 7.1 µM. In summary, this study successfully identified potential enzymatic inhibitors for SARS-CoV-2 and Zika virus proteases using more sustainable approaches, including photochemistry and multicomponent reactions. Further studies may be conducted to enhance the efficacy of these compounds.
Experimental and numerical assessment of global and local stability of steel-UHPC composite alveolar beams under hogging bending
(Universidade Federal de São Carlos, 2025-04-25)
Oliveira, Vinicius Moura de
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Rossi, Alexandre
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https://lattes.cnpq.br/3946998323160911
;
https://orcid.org/0000-0001-9590-1554
;
Martins, Carlos Humberto
Continuous steel-concrete composite beams provide bending moment redistribution, slight deflection, the capability to cover longer spans, and cost-effectiveness. Employing steel alveolar I-sections, High-Strength Steel (HSS), and Ultra-High-Performance Concrete (UHPC) slabs in these composite beams can significantly dematerialize the structure. To the best of authors' knowledge, no studies have addressed the adoption of high-performance materials for composite alveolar beams. At the same time, composite alveolar beams under hogging bending with shear forces can reach local and global instability or the interaction between the modes, such as Lateral-Distortional Buckling (LDB) and Web-Post Buckling (WPB), requiring further investigation. The present study aimed to investigate the occurrence of LDB and WPB in composite alveolar beams, considering HSS I-sections and UHPC. For these objectives, both experimental and numerical analyses were conducted. Three-point bending tests were carried out in steel-UHPC composite castellated beams with I-sections of microalloyed steels with Niobium addition. The experimental results were used to validate the numerical model, and numerical parametric studies were also conducted. The specimens reached failure by WPB coupled with the Vierendeel mechanism (VM). This way, the length of the web openings' hexagon horizontal edge (tee length) influenced the bearing capacity of the castellated beam, in which the specimen with a higher tee length had a lower ultimate load, which was also observed in the numerical parametric study. In addition, the numerical models with the shortest web-post width were more critical for the WPB occurrence. The parametric study models also reached failure by LDB coupled with WPB, showing an elevated influence of the I-section steel yield strength, and composite castellated beams with UHPC slabs showed higher initial bending stiffness and ultimate loads than those with Normal Concrete (NC) slabs. Given this, some possibilities to dematerialize conventional composite beams under hogging bending by using HSS castellated I-sections and slabs of UHPC were verified. The dematerialization rate considered in the analysis regards the ratio between the volume of material consumption of the conventional element and the dematerialized element. Even when instability modes occur in the I-section, an I-section dematerialization rate of up to 55% can be reached using HSS castellated I-sections. In addition, only adopting the castellated I-sections, without changing the steel yield strength, can present an I-section dematerialization rate of up to 17.9%. The slab concrete can reach the dematerialization rate of 33.3% by utilizing UHPC instead of NC. Finally, the updates in ABNT NBR 8800:2024 presented a more accurate LDB resistance prediction than the previous version (ABNT NBR 8800:2008). In most cases, European codes (EC4/EC3) provided conservative LDB and WPB resistance prediction.
Otimização da produção de Goma Xantana: cultivo em biorreator, modelagem e análise de operabilidade
(Universidade Federal de São Carlos, 2025-04-25)
Oliveira, Davi Benedito
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Silva, Adilson José da
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https://lattes.cnpq.br/3447469350644179
;
https://orcid.org/0000-0002-3362-6208
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Horta, Antonio Carlos Luperni
Xanthomonas, a genus of phytopathogenic bacteria, is renowned for producing xanthan gum, a highly viscous biopolymer with diverse industrial applications. Our research group recently engineered a strain that boosts xanthan gum productivity by 50% compared to the wild type. High-viscosity broths often hinder mass transfer and oxygen supply in aerobic cultures. While previous studies have tackled these challenges through advanced aeration and mixing strategies, our approach takes a different path. The hypothesis proposes that the implementation of a controlled continuous cultivation system designed to keep viscosity within an optimal range would ensure unobstructed medium mixing and maintain adequate oxygen transfer. To realize this strategy, a kinetic model was developed capturing biomass growth, product formation, and substrate and oxygen consumption. Existing models from the literature were adapted to fit our experimental data from bench-scale bioreactors. The final model is supported by a neural network trained on our viscosity measurements to predict how viscosity evolves as xanthan gum accumulates. This combined framework supports simulations of batch, fed-batch, and continuous processes, offering versatile tools for process design and optimization. The system was validated with batch cultures in 1.5 L and 6 L bioreactors, and an operability study was conducted under continuous conditions. These experiments identified process parameters that sustain optimal viscosity and maximize oxygen transfer. Ultimately, the approach delivered a 220% productivity increase over standard batch processes, far exceeding initial expectations.
Ensino de precisão: um sistema para ensino de habilidades e treinamento para profissionais que atuam com pessoas autistas
(Universidade Federal de São Carlos, 2025-04-25)
Moraes, Priscilla Terumi
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Carmo, João dos Santos
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https://lattes.cnpq.br/1263046410329694
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https://lattes.cnpq.br/9518547135700384
This thesis investigates the effectiveness of Precision Teaching (PT) in training professionals working with autistic individuals. The thesis comprises four articles exploring various aspects of PT, including its implementation, efficacy in interventions with autistic individuals, the impact of graph standardization on clinical decision-making, and an online procedure for teaching the Standard Celeration Chart (SCC). Chapter 1 is introductory and explains the thesis' objectives. Chapter 2 provides a comprehensive introduction to PT, detailing its core components and offering a practical implementation guide. Chapter 3 presents a systematic literature review analyzing PT's efficacy in interventions with autistic individuals. The review included 11 studies with diverse methodological characteristics (designs, populations, skills taught). Results showed strong evidence of PT's effectiveness in academic skills (primarily mathematics and reading), along with indications of maintenance, resistance, stability, application, and generalization. The review also highlights the need for future studies with enhanced methodological rigor. Chapter 4 investigates how behavior analysts use graphs for decision-making, assessing the influence of graph standardization. In this study, 19 analysts examined 5 graphs (3 line graphs, 2 SCCs) with identical data but different scales and representations. Chapter 5 presents a study evaluating an online teaching procedure for the SCC. Four behavior analytic therapists participated, training on 18 skills using videos and online meetings. Results indicated the procedure's effectiveness in increasing correct responses and decreasing errors, with 93.4% inter-observer agreement. Results demonstrate that graph standardization improves agreement among analysts regarding instructional decisions. Finally, Chapter 6 discusses the findings, their implications for practice and research, and suggests future directions. In summary, this dissertation contributes to understanding and applying PT in interventions with autistic individuals.
Entropia de transferência para cadeias estocásticas com memória de alcance variável
(Universidade Federal de São Carlos, 2025-04-25)
Santana, José Olívio da Silva
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Ferreira, Ricardo Felipe
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https://lattes.cnpq.br/2355076087945221
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https://lattes.cnpq.br/7256020961352532
Transfer entropy is a measure of causality between two time series, quantifying the information that one process provides about the future of another. In this thesis, we consider the problem of estimating the transfer entropy rate between two discrete stochastic processes using the plug-in estimator. When the joint process is a stationary, absolutely regular chain with variable-length memory and whose the dynamics is governed by a 𝑔-function that is not necessarily continuous but is perfectly simulatable, we derive bounds for the probability of concentration of the empirical transfer entropy around its mean and its rate. Next, we establish the convergence of this estimator to a normal distribution, thus providing a Central Limit Theorem for this functional. In this case, we restrict our analysis to processes compatible with continuous 𝑔-functions.
As contradições presentes no currículo e nos projetos políticos pedagógicos das escolas do campo de Limeira/SP: uma análise a partir da Pedagogia histórico-crítica
(Universidade Federal de São Carlos, 2025-04-25)
Jurgensen, Karina Yara
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Santos, Maria Cristina dos
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https://lattes.cnpq.br/1095065753077001
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https://lattes.cnpq.br/5218454576679092
This research investigates the implementation of Historical-Critical Pedagogy (HCP) in the curriculum of the municipal education network of Limeira-SP and its relationship with the Political Pedagogical Projects (PPPs) of rural schools, considering the specificities of this educational context. The study is based on the assumption that, in a scenario marked by neoliberal policies in education, the Common National Curriculum Base (BNCC), guided by competencies and skills, significantly influences teacher training, teaching materials, and standardized assessments—elements that do not align with the principles of HCP. To analyze this issue, a qualitative approach was adopted, combining a literature review (theses and dissertations on HCP, curriculum, and Rural Education) and document analysis (Limeira’s municipal curriculum and the PPPs of rural schools). The results revealed that: (1) the municipal curriculum does not incorporate the particularities of Rural Education, reflecting a disconnect with the needs of this population; (2) the BNCC, as a hegemonic policy, subordinates pedagogical practice to meritocratic logics, limiting the effective implementation of HCP; and (3) while the PPPs make occasional references to HCP and Rural Education, they lack theoretical depth or concrete proposals. It is concluded that, although HCP is the official pedagogical approach of the municipal network, its materialization faces structural challenges, such as the predominance of the BNCC and the lack of specific curricular guidelines for Rural Education. Therefore, it would be pertinent to revise the municipal curriculum to include the specificities of Rural Education, alongside critical continuing teacher training, aiming to strengthen HCP as a transformative alternative to the neoliberal educational model.