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  1. Home
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Browsing by Issue Date, starting with "2025-04-30"

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    Liberdade de expressão e coerções do dizer "livremente" nos anos iniciais do séc. XXI: uma análise discursiva
    (Universidade Federal de São Carlos, 2025-04-30)
    Souza, Felipe Masquio de
    ;
    Sargentini, Vanice Maria Oliveira
    ;
    https://lattes.cnpq.br/1406919572611392
    ;
    Negro
    ;
    https://lattes.cnpq.br/8099696478820921
    Cette thèse analyse la liberté d'expression et des coercitions qui leur sont inhérentes et que l'on observe aujourd'hui dans ce que l'on appelle les mouvements de coercition de la parole, tels que le politiquement correct, la place de la parole, la culture de l'annulation et le anticapacitisme. On analyse un corpus dont la source est diversifiée sur la base de l'hypothèse selon laquelle la liberté d'expression est le “parapluie conceptuel” des mouvements d'ajustement de la parole qui ont émergé dans les premières années du 21e siècle. Le cadre théorique méthodologique utilisé dans la recherche se fonde avant tout sur les postulats de Michel Foucault, dans ses travaux des périodes archéologique et généalogique. En outre, des publications récentes issues de domaines extérieurs à l'analyse du discours, tels que la communication et la sociologie, viennent enrichir le regard analytique, en particulier celles de S. Noble et de M. Moore, qui traitent respectivement des algorithmes racialisés et de la démocratie piratée. L'objectif de ce travail était d'analyser certains mouvements de coercition de la parole dans le contexte des réseaux sociaux tels que Facebook, Instagram et X, au regard de leurs directives de communication, ainsi que de leur opposer des énoncés régulateurs, communément identifiés comme de la censure en fonction de certaines formations discursives. Comme résultat, nous avons trouvé - dans les publications des réseaux, les projets de loi, les décrets, les directives de communication et les textes médiatiques - des aspects qui nous ont permis de comprendre l'existence d'un “dispositif” de contrôle de la parole spécifique en plein fonctionnement. Pour l'instant, ce dispositif présente les caractéristiques d'une gouvernementalité néolibérale, qui est actuellement fortement soutenue par les algorithmes qui contrôlent l'internet et, par conséquent, la parole des sujets. Au milieu du discours, on assiste à un “gouvernement du langage", à commencer par le politiquement correct, puis à un “gouvernement des corps”.
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    Efeito da preparação de aresta em ferramentas de CBN na usinagem de aços liga
    (Universidade Federal de São Carlos, 2025-04-30)
    Rodrigues, Paulo Henrique da Silva
    ;
    Ventura, Carlos Eiji Hirata
    ;
    https://lattes.cnpq.br/1689198421096127
    Due to the high thermomechanical loads in machining processes, proper edge preparation is essential for achieving longer tool life and good surface finishes on the produced parts. The correct choice of microgeometry can improve stress distribution, reduce heat generation, and increase edge strength. In light of this, the present work investigates the effect of edge preparation on cubic boron nitride (CBN) tools in the machining of alloy steels. Inserts with different nominal edge radii (sharp, 20 μm, 40 μm) were produced and had their microgeometry characterized. Turning tests were conducted using annealed 4340 and hardened 4140 steels, and tool wear was evaluated. The results indicate minimal chipping on sharp tools and asymmetry in the edge rounding produced by brushing. Regarding tool life tests, the sharp-edge and 20 μm radius tools showed no performance difference when machining the annealed steel. For the hardened steel, the insert with a 40 μm preparation showed the best performance, with 22% less wear compared to the other cases. It is concluded that the appropriate choice of edge microgeometry can optimize the performance of CBN tools, especially in the turning of hardened steels, providing greater efficiency and process predictability.
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    Agrobiodiversidade e práticas amigáveis aos polinizadores nas agroflorestas da região do Vale do Ribeira, São Paulo
    (Universidade Federal de São Carlos, 2025-04-30)
    Gemim, Bruna Schmidt
    ;
    Silva, Francisca Alcivânia de Melo
    ;
    https://lattes.cnpq.br/4122016283592995
    ;
    https://orcid.org/0000-0001-8664-0532
    ;
    Freitas, Miguel Luiz Menezes
    The adoption of practices that promote the conservation of pollinator populations, creating more friendly landscapes, has become increasingly essential in the face of the accelerated loss of biodiversity and the services associated with it. Agroforests are productive systems that can be managed with high species richness and based on practices that favor essential ecological interactions, imitating the functioning of forest ecosystems. With the objective of evaluating the adoption of pollinator-friendly practices by farmers in agroforestry management in the Ribeira Valley region, São Paulo, this study used qualitative research methodologies. In order to obtain data on livelihood assets (human, social, financial, physical and natural) and pollinator-friendly practices, semi-structured interviews were conducted with questionnaires applied to the participating farmers. Guided tours were also carried out in the agroforests to survey the species composition, with subsequent preparation of floral resource calendars, as well as direct observation of the agroecosystems and surroundings. The research was conducted with 20 family farmers who manage agroforestry in nine municipalities in the Vale do Ribeira region, São Paulo. Through the guided tour, a great wealth of ethnospecies and ethnovarieties was identified, around 350 in total, of which approximately 71% were honey-bearing. Among the agroforests, the number of managed species varied from 32 to 93, with the best coverage of flowering species being from farmers who are beekeepers. Regarding the adoption of pollinator-friendly practices, it was possible to identify that the number of practices adopted is associated with differences in assets related to livelihoods. Among the farmers with a low number of environmentally friendly practices are those with the most vulnerable livelihoods, mostly women. While the highest number of friendly practices was found among those with the best livelihood conditions, including beekeepers and farmers with more experience in agroforestry management. These results demonstrate the need to propose strategies that are thought out locally and promoted through integrated actions that combine education, infrastructure and economic incentives, seeking a common path for the conservation of biodiversity and the improvement of human well-being in agroforestry. Furthermore, based on their perceptions, farmers have identified a series of changes related to the climate, such as temperature, rainfall patterns, drought and extreme weather events, as well as changes in flowering periods and species management, which have caused reductions and losses in production. In view of the climate emergency and its impacts, especially on the most vulnerable populations, the knowledge and expertise of farmers must be considered when proposing the necessary adaptations. On this path, the possible solution involves the agroecological transition of production systems and the social construction of another relationship with Nature, based on socio-environmental justice and supported by public policies aimed at territorial development.
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    A contribuição do contexto na representação documental de memes
    (Universidade Federal de São Carlos, 2025-04-30)
    Felix, Luiza Correia Lima
    ;
    Zafalon, Zaira Regina
    ;
    https://lattes.cnpq.br/1584935790390793
    ;
    https://orcid.org/0000-0002-4467-2138
    ;
    https://lattes.cnpq.br/2155905875916728
    Memes are defined as replicating units of culture that spread through imitation, transmitting ideas, behaviors, and styles while also evolving and adapting over time. They constitute a communicational object infused with humor and criticism, frequently used as a tool for disseminating ideas, promoting debates, and reflecting on social and political issues. In light of this, the research sought to answer the following question: "What is the contribution of context to the documentary representation of memes?" To address this question, the general objective was established as discussing the role of context in the documentary representation of memes. The following specific objectives were also defined: addressing the documentary aspect of memes; analyzing the informational content in meme messages; examining processes of documentary representation of images; and validating the documentary representation of memes based on the composition of messages and their contexts. To achieve these goals, an exploratory, qualitative, and applied methodological perspective was adopted, involving a bibliographic review and the collection of memes related to the 2022 Brazilian presidential elections, analyzed using the documentary analysis method. For the validation of the proposed protocol, methods based on facet analysis and combinations with theoretical proposals from other authors were used to carry out the documentary representation of memes collected on Instagram. The results demonstrated that memes, as documents, contain multiple contextual layers that should be enriched in their documentary representation, allowing for new perspectives on the cataloging and organization of digital informational documents.
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    Conjunto de dados: Índice de Vegetação por Diferença Normalizada
    (Universidade Federal de São Carlos, 2025-04-30)
    Santos, Clóvis
    ;
    https://lattes.cnpq.br/8937137215090395
    ;
    https://orcid.org/0000-0003-3690-9251
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    Carbon credits for solid biofuels in Latin America: a computational tool based on Circular Bioeconomy principles
    (Universidade Federal de São Carlos, 2025-04-30)
    Farrapo Junior, Antonio Carlos
    ;
    Matsuura, Marília Ieda da Silveira Folegatti
    ;
    https://lattes.cnpq.br/4326376230054841
    ;
    https://orcid.org/0000-0002-1473-0624
    ;
    Silva, Diogo Aparecido Lopes
    The accelerating global population growth and the burgeoning demand for products forecasted by 2030 necessitate a sustainable transformation in production and consumption patterns to avert ecological catastrophe. Recognizing this urgency, the United Nations (UN) Agenda 2030 emphasizes the need for a Bioeconomy paradigm shift, aiming to reconcile economic growth with environmental stewardship. Within this framework, Bioenergy emerges as a pivotal component, encompassing renewable energy derived from biological sources, notably solid biofuels like biomass pellets and briquettes. Latin America, endowed with abundant biomass resources, has experienced notable growth in solid biofuel production. However, the region continues to face a significant gap in methodological harmonization and policy recognition of these biofuels within carbon credit mechanisms. To address this gap, a life cycle-based methodological framework was developed to estimate the carbon intensity and decarbonization potential of solid biofuels. Inspired by Brazil’s RenovaBio program and its RenovaCalc calculator, a novel tool, namely BioCalc, was designed to quantify greenhouse gas emissions and simulate carbon credit generation for pellets and briquettes. This doctoral thesis is structured into six chapters, four of which are presented in the form of scientific articles. These chapters address global bioenergy policy analysis, comparative assessment of carbon allocation methodologies, evaluation of transportation-related emissions in export contexts, and the design and application of the BioCalc tool to estimate carbon intensity and decarbonization credit potential for solid biofuels. Modeling results demonstrate substantial variability in greenhouse gas emissions and credit generation depending on the methodological approach adopted. Estimated decarbonization potentials ranged from 3.1 to 6.2 million tCO₂e per year, with associated revenue potential between USD 35.8 million and USD 103.9 million annually, highlighting the financial significance of methodological transparency and harmonization. By combining policy analysis, life cycle modeling, and computational innovation, the work contributes a replicable and policy-relevant framework to support the quantification and market integration of solid biofuels. The outcomes provide strategic insights for incorporating pellets and briquettes into national decarbonization programs, such as RenovaBio and the Brazilian Emissions Trading System (SBCE), as well as into emerging mechanisms established under Article 6 of the Paris Agreement. More broadly, the findings underscore the crucial role of circular economy principles and methodological clarity in promoting sustainable energy transitions in Latin America and globally.
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    Uma análise do tema “Variação linguística” em aulas transmitidas pelo Centro de Mídias da Educação de São Paulo (CMSP) durante o período de Ensino Remoto Emergencial
    (Universidade Federal de São Carlos, 2025-04-30)
    Bernardo, Luziana Da Silva
    ;
    Rubio, Cássio Florêncio
    ;
    https://lattes.cnpq.br/8357993415342241
    ;
    Conde, Dirceu Cleber
    ;
    https://lattes.cnpq.br/2630773088169073
    The main objective of this work is to analyze how linguistic variation was taught in classes transmitted by the Media Center (CMSP) to public schools in the state of São Paulo, during the period of emergency remote teaching (ERE), in order to verify whether the teachers adopted the theoretical-methodological perspective of Variationist and Educational Sociolinguistics regarding the teaching of linguistic variation and what was done with the students to awaken a sociolinguistic awareness. This research, with a qualitative approach and bibliographical-documentary type, is based on ideas originating in Educational Sociolinguistics (Bortoni-Ricardo, 2004, 2005; Bagno, 2007; Faraco, 2007, 2008; among other studies) and analyzes a corpus made up of class recordings from the São Paulo Education Media Center (CMSP). The research was carried out according to the following stages: 1. Bibliographic survey and literature review about teaching linguistic variation; 2. Corpus constitution (access to CMSP recordings and selection of a set of lessons broadcast during the ERE); 3. Transcription of some selected lessons; and 4. Analysis and discussion of the results. This study presents the analysis of the set of online lessons relating to the final years of elementary school II and secondary school. The analysis reveals that the ERE period could have been a good opportunity to work on developing students' sociolinguistic awareness, using various technological tools, such as videos, images, music, etc., considering that many schools do not have the structural conditions to do this in classroom teaching. However, despite these new possibilities, we found that the teaching of linguistic variation is still superficial, without much in-depth study of the factors that cause variation in the language; teaching is restricted to presenting the types of variation in a theoretical way, without showing students in a practical way how these variations occur. In addition, we found that the teachers had little knowledge of the use of technologies applied to teaching, which made those classes a reflection of what was already happening in public school classrooms, that is, a traditional methodology, focused on rules and the transmission of content. Clearly, the pandemic has passed and those recorded lessons will continue to be available on the internet. However, we hope that this study can contribute to improve the content made available on CMSP, and the training offered there for state school teachers, not just in São Paulo, but throughout Brazil. We also hope that the training offered will be of high quality, with the necessary topics and up-to-date materials, as well as encouraging teachers to read books, articles etc. on the subject of variation and teaching, the use of technologies and more dynamic methodologies than the traditional ones, allowing these topics to be explored in all their complexity and in full.
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    Colchicina na indução in vitro de poliploides e efeitos da poliploidização em Mandevillas ornamentais
    (Universidade Federal de São Carlos, 2025-04-30)
    Leite, Mariana Pelais
    ;
    Cardoso, Jean Carlos
    ;
    https://lattes.cnpq.br/3681181863704059
    ;
    https://orcid.org/0000-0001-6578-1723
    ;
    https://lattes.cnpq.br/7061758702266032
    This study investigates the induction of polyploidy in Mandevilla in vitro, utilizing colchicine as a mitotic inhibitor. The main objective is to establish an effective protocol for polyploidization and evaluate its impacts on three genotypes of Mandevilla. Specific objectives include assessing the effects of exposure time to colchicine on the induction of polyploids, as well as the influence of genotype on the success of polyploid plant development. The results demonstrate that colchicine treatment led to significant changes in the morphological and physiological characteristics of Mandevilla, including alterations in leaf size, stomatal density, chlorophyll content, flower color and size, and photosynthetic efficiency. The findings suggest that induced polyploidization may enhance desirable ornamental characteristics. This research highlights the potential of polyploidization as a strategy to increase the ornamental value of Mandevilla and offers insights for future applications in plant breeding.
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    Proposta de Sequência Didática para Ensino de Mecânica Quântica no Ensino Médio
    (Universidade Federal de São Carlos, 2025-04-30)
    Silva, Raul Pinheiro da
    ;
    Cruz, Tersio Guilherme de Souza
    ;
    https://lattes.cnpq.br/0705292304279277
    ;
    Silva, Fernanda Keila Marinho da
    ;
    https://lattes.cnpq.br/6390725197649567
    The main objectives of this study were: (1) to develop a didactic sequence that addresses specific topics in Quantum Physics (QP), focusing on debunking pseudoscientific concepts related to the subject; (2) to apply this didactic sequence in high school classes; and (3) to evaluate whether there was progress in students' understanding of quantum concepts. The justification for the study is based on the difficulties highlighted by several authors in teaching Quantum Physics at the high school level, such as the complexity of mathematical formalism, conceptual innovations, limitations in experimental approaches, the lack of didactic materials and outreach, and the insufficient time available to cover these topics adequately. Furthermore, quantum mysticism and the spread of pseudosciences, which often distort scientific principles, reinforce the need for a structured educational intervention. The didactic sequence was developed based on the studies of Antoni Zabala, aiming at a progressive and diversified structure that would facilitate students’ understanding and engagement. The methodology combined a variety of pedagogical approaches, including experimental activities and interactive discussions. The results showed that the sequence was effective: most students reported a better understanding of physical phenomena, and many felt more prepared to distinguish science from pseudoscience. Data analysis indicated an improvement in concept comprehension, highlighting the contribution of this work to the teaching of Quantum Physics in high school and to the reinforcement of critical scientific education.
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    Serviços psicogerontológicos: desafios, oportunidades e inovações na perspectiva da prática profissional no Brasil
    (Universidade Federal de São Carlos, 2025-04-30)
    Brigante, Jaqueline Lara
    ;
    Zanon, Celeste José
    ;
    https://lattes.cnpq.br/9117512651101224
    ;
    https://orcid.org/0000-0002-9924-8801
    ;
    https://lattes.cnpq.br/0073048975147180
    With the aging of the Brazilian population, significant challenges arise for health management, while opportunities for innovation in psychogerontological services open up. The demand for specialized care for older adults requires a personalized and adapted approach. In this context, the SERVQUAL model stands out as a tool to assess user satisfaction in health services, while the Pikes Peak Training Model presents the attitudes, knowledge and skills necessary for the practice of Psychogerontology. This research was developed through the preparation of two articles, with different methodological approaches, to investigate the quality of psychogerontological services: an analysis based on a systematic review of the literature and another focused on empirical research, of a qualitative and exploratory nature, based on the perceptions of 22 Brazilian psychologists. The data collection process for the second article was guided by triangulation between the formulation of the semi-structured questionnaire composed of 11 questions, the conduct of the interviews and the observations made by the researcher. The selection of the main excerpts and observations made it possible to code and categorize the data, through the evaluation dimensions and their constituent parts. The results indicate that issues related to the training and qualification of psychology professionals represent a challenge both in the literature review and in the interviews conducted with the psychologists. These factors impact not only the quality of the psychogerontological services offered, but also influence the number of psychologists interested in specializing in the care of elderly people, their caregivers and family members. Another aspect observed, both in the literature review and in the interviews, was the association made by the psychologists between empathy, acceptance, expression of affection and interest. It is important to emphasize the importance of the psychology professional understanding the real needs of this population and, based on this understanding, applying their specialized knowledge to define the most appropriate intervention strategy for each case. In addition, it was found that psychology professionals need to pay attention to structural improvements, ranging from access to mental health services to communication channels and the resources used. As an innovation of this research, the adaptation of the SERVQUAL model to assess the quality of psychogerontological services in Brazil stands out. As an opportunity for improvement, the adaptation of the Pikes Peak Training Model to the context of psychogerontological services in the country is discussed, given its relevance. This adaptation would provide a solid basis for the training of psychologists, enabling them to deal more effectively with issues related to aging. The integration of the Pikes Peak Model into the Brazilian context, combined with the dimensions of the SERVQUAL model, can generate a significant positive impact on the quality of psychological services aimed at the elderly. It is concluded that the training and practice of psychology professionals should promote approaches that broaden and deepen the understanding of the multiple dimensions of aging, preparing them for a more qualified and sensitive performance to the demands of this population.
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    Ecoturismo: práticas sustentáveis em hospedagens: importância da implantação de práticas sustentáveis nos serviços de hotelaria
    (Universidade Federal de São Carlos, 2025-05-01)
    Santos, Bruna Regina dos
    ;
    Farias, Cátia Araujo
    ;
    Oliveira, Celso Maran de
    ;
    Amarante Junior, Ozelito Possidonio de
    ;
    https://lattes.cnpq.br/8192425520595667
    Diante da crescente pressão social por uma postura ambientalmente sustentável, o setor hoteleiro vem incorporando em suas estratégias de mercado a adoção de ações e práticas voltadas para a conservação ambiental. Neste sentido, o objetivo do artigo consiste em propor discussões sobre a relação entre ecoturismo e hotelaria sob a perspectiva da sustentabilidade, destacando a importância de implementar práticas e tecnologias sustentáveis nos meios de hospedagem. Este estudo foi conduzido por meio de uma revisão bibliográfica em bases de dados acadêmicas, analisando artigos, dissertações, teses e documentos técnicos sobre a implementação de SGAs em meios de hospedagem. A metodologia permitiu a identificação de desafios e oportunidades na adoção de práticas sustentáveis, bem como a análise da efetividade dessas iniciativas na redução dos impactos ambientais. Chegou-se a resultados que demonstram a necessidade de adaptação dos meios de hospedagem para o cumprimento de requisitos mínimos de sustentabilidade; e que as organizações devem investir na implementação de um Sistema de Gestão Ambiental, porque proporciona benefícios, como melhoria da imagem; conquista e ampliação de mercados; acesso à benefícios econômicos por meio de taxas mais baixas, redução de custos operacionais; manutenção das relações comerciais; cumprimento da legislação ambiental em geral; e principalmente, execução das práticas sustentáveis em prol do ambiente. O compromisso com a gestão ambiental fortalece a competitividade dos meios de hospedagem, aprimora a experiência dos hóspedes e contribui para um turismo mais responsável e sustentável, alinhado aos ODS da Agenda 2030.
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    Desenvolvimento e caracterização de organogéis com diferentes óleos e ceras vegetais
    (Universidade Federal de São Carlos, 2025-05-05)
    Amaral, Júlia Ketchkech
    ;
    Silva, Thaís Jordânia
    ;
    https://lattes.cnpq.br/4582114700719319
    Consumers are increasingly concerned about eating healthier foods. As a result, health authorities have encouraged the development of strategies aimed at creating healthier alternatives, including the elimination of trans fats and the reduction of saturated fatty acids. In this context, organogel technology has emerged as an alternative, offering benefits beyond nutritional aspects, such as being a simpler and more cost-effective process. The objective of this project was to develop organogels using different vegetable oils, based on their degree of saturation, and to evaluate the combination of two vegetable waxes (candelilla and beeswax) in different proportions. A total of twenty-one organogels were formulated with varying ratios of beeswax to candelilla wax (0:6, 1:5, 2:4, 3:3, 4:2, 5:1, and 6:0 % (w/w)) using soybean, canola, and sunflower oils. The organogels were evaluated for texture, adhesiveness, rheological properties, thermal stability, and oil-binding capacity. The results showed that the addition of candelilla wax increased the firmness and stability of the organogels, especially when combined with beeswax. The organogels exhibited high oil-binding capacity and variable stability depending on the combination of vegetable oil and wax used, with the best stability observed in gels made with sunflower oil and a mixture of beeswax and candelilla wax. Oils with a high content of unsaturated fatty acids, such as sunflower oil, showed better performance in terms of mechanical resistance, firmness, and stability. Rheological analyses showed that the Herschel-Bulkley model fit the data well, indicating that the organogels exhibited pseudoplastic behavior with yield stress. Among the formulations tested, those with a 4:2 ratio of beeswax to candelilla wax showed the highest stability and, therefore, greater potential for food applications. Thus, the results confirm that organogels are viable alternatives to conventional fats and have potential for industrial application.
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    Influência da estrutura da paisagem na diversidade de espécies em comunidades de morcegos na Mata Atlântica
    (Universidade Federal de São Carlos, 2025-05-05)
    Almeida, Vinícius Theotônio Baptista de
    ;
    Rocha, Vlamir José
    ;
    https://lattes.cnpq.br/8044368595391973
    ;
    Lopes, Luciano Elsinor
    ;
    https://lattes.cnpq.br/6504793265492545
    Bats provide important ecosystem services, such as seed dispersal, pollination, and pest control. However, the composition and diversity of bat communities can be influenced by landscape changes. In this study, we evaluated how different landscape metrics relate to bat data collected in 18 distinct Atlantic Forest landscapes within the Cantareira–Mantiqueira Corridor in southeastern Brazil. A 2-km buffer was applied around each sampling site to calculate metrics including percentage of native vegetation cover, total edge length, patch area, and landscape heterogeneity. For bats, we computed Shannon-Wiener diversity index, Chao-1, observed richness, and abundance. Statistical analyses were performed using Generalized Linear Models (GLMs), and spatial autocorrelation was assessed using Moran’s I index. Functional groups were established based on dietary preferences and body size to facilitate the identification of potential patterns of response among ecologically similar species. In addition to analyses at the community and functional group levels, we also explored relationships between the most abundant species (N > 20) and landscape metrics. Sampling effort totaled 17.280 m²h (mist-net hours), collecting 501 individuals from 26 species, of which 80.6% were frugivorous, 10.3% insectivorous, 5.2% hematophagous, 3.2% nectarivorous, and 0.6% omnivorous. Abundance per site ranged from 2 to 65 individuals, and species richness from 2 to 11 species. GLMs did not reveal statistically significant relationships between landscape metrics and either community or functional group attributes. However, Sturnira lilium showed a significant positive relationship with native vegetation cover (p = 0.0141), with higher abundances observed in landscapes containing 10–35% native vegetation. This pattern may reflect greater food availability, as pioneer species from the Solanaceae family, preferred dietary items for S. lilium, are often more abundant in disturbed landscapes. These findings highlight the species' potential role in seed dispersal and ecological restoration in anthropogenically altered areas.
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    Influência de parâmetros geométricos na avaliação dos mecanismos resistentes de juntas com chave de cisalhamento em ligações viga-pilar: uma abordagem numérica pelo método dos elementos finitos
    (Universidade Federal de São Carlos, 2025-05-05)
    Andrade, Maykon Vinicius
    ;
    Christoforo, André Luis
    ;
    https://lattes.cnpq.br/7623383075429186
    ;
    https://orcid.org/0000-0002-4066-080X
    ;
    https://lattes.cnpq.br/2283033563977422
    In this work, models of beam-column structures were used to examine the behavior of their connections, using a shear-key connection. This connection is commonly used in Brazil in constructions carried out with precast concrete structures. The hypothesis is that with the addition of a grout of concrete welding the beam-column interface with roughness (shear key), the console would be less overloaded and the key would support a part of the load, relieving the console of 100% of the beam load. No numerical studies of this type of connection with steel plates were found, which is why this work is so relevant. For the numerical simulations, the finite element method and the software ABAQUS were used, and ultimately, it was desired, in the end, to determine whether the geometry of the notch of the shear key influences the stress resisted by the corbel and which variable has the greatest influence. The study consisted of 35 simulations, 28 of which involved changes in the beam length and key geometry, and 7 simulations without the key, altering only the beam length for later comparison. Through the numerical simulations, the efficiency of the shear key was verified when compared to the model without the key. It was concluded that the geometry of the key notch, as well as the beam-to-column spacing, are not as significant for resistance, and what truly influences the results is the length of the beam. Finally, the shear key that performed best was the key in the 3.80m long beam, which achieved a relief effect of 58.82% when compared to the model without the key.
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    Indagação interdisciplinar no pátio da escola (IIPE) e educação midiática aplicadas à educação ambiental na educação básica
    (Universidade Federal de São Carlos, 2025-05-05)
    Pereira, Gabriele
    ;
    Carvalho, Pedro
    ;
    https://lattes.cnpq.br/0019513394358070
    ;
    Lopes, Luciano Elsinor
    ;
    https://lattes.cnpq.br/6504793265492545
    Environmental education in basic education faces challenges related to students' lack of interest and the alarmist approach to environmental issues. To make teaching more engaging and meaningful, this research evaluated the application of Interdisciplinary Inquiry in the Schoolyard (IIPE) combined with Media Education in a public school in São Carlos/SP, Brazil. The methodology adopted was action research, with workshops involving schoolyard observation, question formulation, data collection, and the production of audiovisual materials by students. The activities aimed to stimulate curiosity, interaction with the environment, and the use of digital media. The results indicated that IIPE promotes more active and participatory learning, expanding students' perception of nature in their surroundings. However, challenges such as immaturity in the use of technology and the traditional school structure limited students' autonomy. Media Education proved promising but requires guidance to be effectively integrated into the pedagogical process. The research concludes that the combination of these methodologies can make environmental education more accessible and dynamic, provided that teachers receive adequate support and that the approach is adapted to students' needs.
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    A critical review of MIP models for lot-sizing and scheduling in the beverage industry
    (Universidade Federal de São Carlos, 2025-05-05)
    Noble Ramos, Victor Mario
    ;
    Ferreira, Deisemara
    ;
    Alem Junior, Douglas José
    ;
    Morabito Neto, Reinaldo
    ;
    https://lattes.cnpq.br/9414682020715601
    This paper presents a comprehensive literature review of studies that have formulated mixed-integer programming models to address lot-sizing and scheduling problems in the beverage industry. For the first time, we highlight the distinguishing characteristics and challenges of beverage production and scheduling, such as the existence of two production stages, the need for synchronization between stages, and perishability issues associated with the liquids in production tanks—issues that have previously been overlooked by specialized literature. Given the absence of a classification scheme to systematize these characteristics, we introduce a novel and extensive set of classification criteria for lot-sizing and scheduling models tailored to the beverage sector. Our review provides an up-to-date summary of over 50 mixed-integer programming models and their real-world applications in the production of soft drinks, fruit-based beverages, beer, and yogurts. We also identify gaps in the literature and suggest promising directions for future research, underscoring the importance of addressing machine maintenance and data uncertainty, as well as the potential contributions of Machine Learning & Industry 4.0 and 5.0 to enhancing lot-sizing and scheduling within the beverage industry.
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    Concrete masonry structures: numerical modeling, seismic performance, and building applications
    (Universidade Federal de São Carlos, 2025-05-06)
    Palhares, Rodolfo de Azevedo
    ;
    Graham Shrive, Nigel
    ;
    Parsekian, Guilherme Aris
    ;
    https://lattes.cnpq.br/7798651726059215
    ;
    https://orcid.org/0000-0002-5939-2032
    Partially grouted reinforced masonry (PGRM) structures are widely used worldwide, especially in regions with low to moderate seismicity, due to their economic and structural advantages. The nonlinear behavior of PGRM walls is complex, as it is influenced by the interaction between grouted/reinforced and ungrouted regions, which differ in stiffness and introduce non-uniformity in the cross-section. Additionally, factors such as aspect ratio, cross-sectional area, material properties, reinforcement detailing, and axial load significantly influence the nonlinear response. At the building level, further complexities arise from layout configurations, horizontal diaphragm interactions (slabs), and axial load distributions, making it insufficient to rely solely on isolated wall responses to predict overall performance. This thesis addresses these complexities by developing numerical modeling approaches to simulate multi-storey PGRM walls, with the aim of evaluating the seismic performance of building systems and propose practical design recommendations. The research comprises four independent but interconnected studies, each presented as a separate chapter in this thesis. In the first study, a simplified macro-modeling approach is evaluated to simulate the nonlinear in-plane behavior of PGRM walls with vertical reinforcement concentrated at the pier ends. The model, validated based on experimental data from four walls tested by the author’s research group, accurately predicted global behavior, including force-displacement responses and damage mechanisms, while presenting low computational costs. However, further refinement and validation are needed to address additional detailing scenarios, such as cases where vertical reinforcement and grouted regions are not continuous across stories or where reinforcement and grout are distributed non-uniformly along the wall length. In the second study, a unified finite element-based modeling strategy is introduced that combines macro-modeling for grouted regions and simplified micro-modeling for ungrouted regions. This approach facilitates the accurate simulation of various masonry wall typologies, including unreinforced masonry (URM), fully grouted reinforced masonry (FGRM), and PGRM. The numerical model effectively captured the nonlinear response across different experimental cases, and sensitivity analyses identified key parameters that influence numerical accuracy. This study provides valuable insights for future applications in the simulation of in-plane loaded masonry structures. The third study extends the unified modeling approach to investigate the seismic behavior of multi-storey PGRM walls within three-dimensional structural systems. Nonlinear static (pushover) analysis results revealed the significant impact of orthogonal walls (flanges), aspect ratios, axial load levels, and vertical reinforcement arrangements. Flanges have been shown to increase lateral stiffness and force capacity, higher axial loads enhance force capacity but reduce ductility, and a greater number of stories decreases stiffness and increases ultimate displacement. The vertical reinforcement concentrated at the wall ends exhibited an efficiency comparable to uniformly distributed reinforcement, demonstrating it as a suitable alternative. In the fourth study, the seismic performance of two real-world reinforced masonry buildings representative of Canadian (B1) and Brazilian (B2) practices is examined. Using a multi-step methodology that integrates eigenvalue analyses and pushover simulations, the study highlighted the critical role of structural layout in the seismic performance of buildings. Balanced wall distribution and flange contributions significantly improved performance. Notably, building B2, despite lacking explicit seismic design provisions and detailing, outperformed B1 under higher seismic demands, underlining the importance of optimized structural layouts in enhancing seismic performance. Overall, this thesis establishes a comprehensive framework for evaluating and improving the seismic performance of concrete masonry buildings. The proposed modeling approaches, validated based on experimental data, provide support for analyzing masonry systems and informing potential updates to seismic design standards. The findings emphasize the importance of regional adaptations in building design and structural layout optimization to achieve better seismic performance.
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    Entre fases: práticas informacionais durante a menopausa
    (Universidade Federal de São Carlos, 2025-05-06)
    Andrikonis, Juliana Buzinaro
    ;
    Furnival, Ariadne Chloe Mary
    ;
    https://lattes.cnpq.br/1291482506649810
    ;
    https://orcid.org/0000-0002-2344-4400
    ;
    https://lattes.cnpq.br/2121898429151597
    The presented dissertation focuses on investigating the information practices of women experiencing at least one perimenopausal stages, a process that approximately 18% of the Brazilian population has gone through or will go through, and which is an expected experience for all cisgender women. Despite its recurrence, the perimenopause is still surrounded by insecurities and uncertainties, especially regarding the management of symptoms that affect quality of life, such as hot flashes, insomnia, and emotional changes, as well as controversies surrounding hormone replacement therapy. The scarcity of accessible information and the persistence of taboos on the subject exacerbate these challenges, making it difficult for women to access resources that could help them better navigate this phase. In this context, this research aims to identify the informational practices of these women, contributing to an interdisciplinary understanding between Information Science and the Health field. To support the study, we rely on four theories from Information Science: Brenda Dervin’s Sense-Making approach, which explores how individuals construct meaning in situations of uncertainty; Reijo Savolainen’s Everyday Life Information Seeking model, which focuses on how people seek information in their daily lives; Elfreda Chatman’s Small World concept, which analyzes how groups of individuals share information in specific environments; and finally, Pamela McKenzie’s informational practices approach, which examines how people interact with information in their social context. The research adopts a descriptive, exploratory, and cross-sectional approach, with qualitative data collection through the survey method, using a questionnaire. In addition to primary data collection, bibliographic materials were used, obtained from guidance recommendations, references from foundational works, and searches in scientific databases such as Scopus, PubMed, SciELO, and Web of Science, using search expressions specifically developed for this study. The results are based on 208 valid responses, with most participants located in the state of São Paulo, identifying as white, and holding postgraduate degrees. Although the majority of respondents belong to a socially privileged group, we also obtained responses from women with different socioeconomic backgrounds, enriching the findings. These results suggest that many women indeed experience doubts, difficulties in accessing evidence-based health information, and insecurities during the perimenopausal phase. Among them, most seek guidance from healthcare professionals to address these concerns. However, some respondents expressed frustration with the lack of adequate attention and the inability of healthcare professionals to provide proper guidance. Another significant finding is that women frequently turn to other women for information about menopause, whether through virtual groups, friends, or family members. This study leads us to conclude that the healthcare field could greatly benefit from integrating information services through the lens of Information Science. This approach would provide more adequate support for individuals in various health situations, especially for those experiencing some degree of social vulnerability.
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    Análise comparativa de métodos de detecção automática de mensagens ofensivas em textos curtos e ruidosos
    (Universidade Federal de São Carlos, 2025-05-06)
    Maricondi, Thiago Nacrur
    ;
    Vincenzi, Auri Marcelo Rizzo
    ;
    https://lattes.cnpq.br/0611351138131709
    ;
    https://orcid.org/0000-0001-5902-1672
    ;
    https://lattes.cnpq.br/1237234894241914
    With the increasing use of social media and the ease of access to digital content—especially among children and adolescents—there has been a significant rise in cases of cyberbullying and online harassment in recent years. In response, several content moderation tools have been developed, such as comment filters, reporting systems, and user profiles dedicated to moderation. However, due to the vast amount of information constantly generated on social media platforms, manual moderation has become impractical, highlighting the importance of automated moderation in reducing the incidence of digital crimes. This work addresses the automatic identification of aggressive behavior in offensive messages found in short and noisy texts using machine learning and deep learning algorithms. A public dataset extracted from platform X was used, containing 20,001 sentences labeled as aggressive 39.1% or non-aggressive 60.9%. Supervised learning models were trained using stratified cross-validation, employing text preprocessing techniques and various algorithms, including BERT, FastText, and ensemble methods, with the goal of assessing the effectiveness of these approaches in the automatic detection of textual aggressiveness. The results showed that the BERT and FastText models achieved excellent recall scores, reaching 96.5% and 95.8%, respectively, significantly outperforming the baseline model in detecting offensive messages.
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    Integrating landscape analysis and multicriteria decision-making to prioritize forest restoration areas in human-modified landscapes
    (Universidade Federal de São Carlos, 2025-05-08)
    Morales, Milton Vinícius
    ;
    Valente, Roberta Averna
    ;
    https://lattes.cnpq.br/1582627535733911
    ;
    https://orcid.org/0000-0001-7273-7042
    ;
    https://lattes.cnpq.br/3489124504372716
    This study proposes an integrated approach combining the analysis of the landscape's eco-logical, anthropical, and biophysical components with multicriteria decision-making meth-ods to prioritize forest restoration areas in human-modified landscapes. The research begins with a systematic literature review (Chapter I) that identifies and categorizes the primary spatial criteria employed in decision-making processes for restoration, highlighting method-ological gaps and the need for standardization in selecting and applying these criteria. Sub-sequently, a spatiotemporal analysis of the Sarapuí River Basin (Chapter II) reveals land-use dynamics and the phenomenon of forest cover rejuvenation, allowing for identifying areas with the potential to trigger successional processes and enhance ecological connectivity. Next, mapping the human footprint (Chapter III) integrates environmental and socioeconom-ic aspects, providing an accurate diagnosis of anthropogenic pressures on the landscape. Fi-nally, the proposed decision framework (Chapter IV) consolidates the previous results by establishing a robust and replicable multicriteria decision analysis (MCDA) method for pri-oritizing restoration areas, with potential applications in public policies and Payment for Environmental Services initiatives. The findings demonstrate that the convergence of spatial data, environmental dynamics, and structured decision processes can optimize the allocation of investments and efforts for the effective ecological restoration of degraded environments, ultimately contributing to biodiversity conservation, climate change mitigation, and sustain-able development.
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