Browsing by Issue Date, starting with "2025-12-19"

Filter results by year or month

Now showing 1 - 20 of 788

Impulsionamento de uma biblioteca virtual por meio de um plano de marketing: estudo de caso na UFMT
(Universidade Federal de São Carlos, 2025-12-19)
Moreno, Olgarita Helena da Silva
;
Martins, Manoel Fernando
;
http://lattes.cnpq.br/3921504261628850
;
https://orcid.org/0000-0003-2787-5977
;
http://lattes.cnpq.br/3736874780732500
The advancement of telecommunications and information technology has profoundly transformed human relations, impacting work, learning processes, and access to knowledge. In this context, libraries play a strategic role in information dissemination and are challenged to adapt to the dynamics of the digital era. The emergence of virtual libraries and digital books represents a significant innovation, expanding access to documentary records and strengthening remote support for teaching, research, and extension activities in higher education institutions. Despite these potentialities, reports from companies contracted by the Federal University of Mato Grosso (UFMT) indicate a low level of use of virtual platforms compared to the number of available licenses. In contrast, the empirical data of this research, obtained through questionnaires applied to 124 undergraduate students and 55 faculty members (totaling 179 respondents), reveal that most participants are aware of and report using virtual libraries, although in an irregular and uneven manner across courses and campuses. This mismatch indicates that the issue lies not only in lack of awareness but, above all, in the absence of effective institutional strategies for mediation, dissemination, and integration of these resources into academic practices. Based on this diagnosis, the research—characterized as a case study—resulted in the development of a marketing plan aimed at boosting the use of UFMT’s virtual libraries, constituting a technological product of the Professional Master’s Degree in Production Engineering. Among the main results, the study highlights the identification of barriers related to institutional communication, user training, and faculty engagement, as well as the proposal of targeted strategic actions, such as segmented campaigns, continuous training initiatives, integration of platforms into course syllabi, and strengthening of informational mediation. It is concluded that strengthening virtual libraries depends on coordinated action among institutional management, technical staff, and faculty, in order to transform the available informational potential into effective, continuous, and qualified use. By identifying gaps and proposing concrete interventions, this study contributes not only to expanding access to and use of virtual libraries at UFMT but also provides replicable insights for other higher education institutions facing similar challenges in the context of digital culture.
Modificação de fibras de bagaço de cevada e uso em compósitos biodegradáveis de amido de milho produzidos por tape casting
(Universidade Federal de São Carlos, 2025-12-19)
Castanho, Maria Natalia
;
Paiva, Jane Maria Faulstich de
;
https://lattes.cnpq.br/7926832511513537
;
https://lattes.cnpq.br/2807864150195202
;
Frollini, Elisabete
The use of starch to obtain biodegradable films of thermoplastic starch (TPS) presents several advantages, such as being derived from a natural, renewable, abundant, and low-cost source. However, starch films generally exhibit low tensile mechanical properties and high hydrophilicity. In this context, the study used brewer’s spent grain (BSG), considered a byproduct of the brewing industry, as reinforcement in corn starch–based composites. For this purpose, TPS composites plasticized with glycerol were developed using Farmal CS3650 corn starch, with an approximate composition of 28% amylose and 72% amylopectin. To produce the films, 10 wt% starch and 5 wt% glycerol were used, with the addition of 1 wt% barley bagasse fibers (unmodified, modified by alkaline treatment in sodium hydroxide (NaOH) solution, or carbonized at 200, 300, 400, and 500 °C). The films were produced using a microwave oven to heat the mixture, with pauses for manual stirring, and molded by tape casting, a technique that allows better thickness uniformity of the films compared to conventional casting. Tensile mechanical tests were performed, as well as Scanning Electron Microscopy (SEM) on fractured samples, Dynamic Mechanical Analysis (DMA), Thermogravimetric Analysis (TG/DTG), Differential Scanning Calorimetry (DSC), Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), contact angle measurements, and soil biodegradation and phytotoxicity tests for possible agricultural application of the produced material. Improvements in tensile strength were observed for composites containing fibers carbonized at 400 °C (2.10 ± 0.09 MPa) and fibers modified by alkaline treatment (2.27 ± 0.16 MPa), representing increases of up to 51% compared to the TPS film without fiber incorporation (1.40 ± 0.11 MPa). Thermal analyses did not reveal significant differences in the thermal stability of the composites due to the low fiber content. The addition of modified fibers promoted a reduction in hydrophilicity and water absorption of the films. The incorporation of unmodified or alkali-treated fibers accelerated the biodegradation of the composites, whereas carbonized fibers maintained biodegradability similar to that of TPS. The produced films showed no phytotoxicity. Alkaline treatment and fiber carbonization proved to be promising strategies for obtaining composites with improved properties and sustainability. The developed composites show potential for applications in short-life biodegradable packaging and agricultural films, such as mulching and wraps for seeds and seedlings. Mechanical improvements and reduced hydrophilicity enhance the functional viability of materials developed. The use of agro-industrial waste (byproducts) and low-cost processes reinforces the sustainable character and application potential in environmentally responsible disposable products.
Integração de Bacillus subtilis e cobre no manejo do cancro cítrico
(Universidade Federal de São Carlos, 2025-12-19)
Ramos, Luiz Otávio
;
Goés, Antonio
;
https://lattes.cnpq.br/0786750280869349
;
Jesus Junior, Waldir Cintra de
;
https://lattes.cnpq.br/2614953467362376
Brazilian citrus production, which leads the global orange market, is currently threatened by the accelerated spread of citrus canker, now present in 32.71% of orchard blocks and affecting more than 53 million trees. Control of the disease relies exclusively on copper-based compounds, resulting in excessive dependence and frequent applications that increase the risks of phytotoxicity, environmental contamination, and reduced sustainability of commercial orchards. This scenario exposes an urgent scientific gap: identifying alternative strategies capable of maintaining effective disease control while reducing the intensive use of copper, such as biological products formulated with Bacillus subtilis. This quantitative study evaluated the effectiveness of chemical management (copper), biological management (Bacillus subtilis), and integrated management (copper alternated with Bacillus subtilis) in three commercial sweet orange cultivars (Hamlin, Pera, and Valencia) over three consecutive seasons, conducted in commercial orchards located in the municipalities of Itatinga and Avaré, São Paulo, Brazil. The experiment followed a randomized block design with four treatments and one replication per treatment, assessing 30 plants per block. Disease severity was evaluated monthly using the diagrammatic scale proposed by Belasque Júnior et al. (2005), and epidemic progress was quantified using the Area Under the Disease Severity Progress Curve (AUDSPC). Productivity was determined by harvesting each evaluated plant, and all data were analyzed in RStudio using ANOVA and Tukey’s test at a 5% significance level. Results showed that copper was the most effective treatment, with severity ranging from 0 to 5% and AUDSPC values below 550 across all seasons and cultivars. Integrated management achieved control equivalent to biweekly copper applications while reducing the number of copper sprays by half, demonstrating promising potential to decrease dependency on this input. In contrast, Bacillus subtilis alone showed low efficacy, not differing from the untreated control in most evaluations. The cultivars displayed different susceptibility levels, with Hamlin being the most affected and Valencia the most tolerant. Rainfall had a strong influence on disease development, intensifying severity and reducing productivity in wetter years. In conclusion, copper remains the most effective strategy for controlling citrus canker; however, integrated management represents a viable alternative for reducing copper use, particularly in regions with high inoculum pressure. Bacillus subtilis alone showed limited performance, reinforcing the need for advances in sustainable alternatives to the current exclusively copper-based control approach.
Agricultura familiar no contexto da produção sustentável de café orgânico no Brasil e América Latina
(Universidade Federal de São Carlos, 2025-12-19)
Araujo, Maria Isabel Rinaldo Pessôa de
;
Furnival, Ariadne Chloe Mary
;
https://lattes.cnpq.br/1291482506649810
;
https://orcid.org/0000-0002-2344-4400
;
https://lattes.cnpq.br/9243348503899322
This dissertation proposes an analysis of the concepts and practices related to family farming and sustainable organic coffee production in Brazil and Latin America. Coffee (Coffea sp.) is a perennial crop of great global importance, with Brazil being one of the world's leading producers and exporters. Historically, Brazilian coffee farming has adopted intensive agricultural practices, characterized by heavy use of chemical fertilizers, pesticides, and herbicides, which causes adverse environmental impacts, soil degradation, and risks to human health. In contrast, organic coffee farming is emerging as an alternative and sustainable agricultural system, based on the non-use of agrochemicals and rational soil management. Organic agriculture is defined by principles of health, ecology, justice, and care, promoting biodiversity, biological cycles, and soil biological activity. This model has gained global recognition, promising benefits for consumers, farmers, and the environment. The objective is to understand the different ways of defining and approaching family farming, taking into account its particularities and challenges, as well as to seek to understand the principles and practices of sustainable organic coffee production, highlighting its benefits for the environment, the economy, and society. We also sought to identify the main obstacles that family farmers face when trying to grow organic coffee in a sustainable manner. The methodological approach employed a systematic review of the literature, covering case studies and data from Brazil (São Paulo, Minas Gerais, Espírito Santo, Chapada Diamantina/Bahia) and Latin America (Mexico, Peru, Costa Rica, Colombia, and Bolivia), which generated a table with 11 studies focused on three themes: family farming, sustainable organic coffee production, and the challenges faced by family farmers in growing organic coffee. Although productivity in organic agriculture tends to be lower (20% to 25%) compared to conventional agriculture, certified Brazilian family farmers had 10% higher income and 30% higher profits, as well as greater market integration. However, the transition involves significant costs and a three-year transition period without a premium price. Diversification of income sources and support from cooperatives and producer organizations are crucial, as they facilitate technical assistance, financing, and marketing, providing a strategy for economic and social survival for family farmers. Organic certification is essential for access to differentiated markets, but marketing, especially for export, faces challenges such as bureaucracy, costs, and price fluctuations, which do not always result in the premium price expected by farmers. Social organization is a pillar for agroecological transition and improved living conditions. The analysis demonstrates the complexity of the transition to organic and sustainable coffee farming, highlighting the need for integrated approaches. Science and technology provide knowledge and socio-technical innovations, while society supports organizations, finances farmers, and ensures access to fair markets to guarantee sustainability and improved livelihoods for family farmers in Brazil and Latin America. Although organic agriculture offers undeniable environmental and social benefits, significant challenges remain that require continued support and effective public policies to fully realize its potential.
Função polinomial de primeiro grau: uma abordagem através de resolução de problemas
(Universidade Federal de São Carlos, 2025-12-19)
Silva, Silas Pereira da
;
Pires, Rogério Fernando
;
https://lattes.cnpq.br/2795801064535157
;
https://lattes.cnpq.br/3687511709869880
;
Lima Junior, Haroldo Aleixo de
This study aimed to investigate the implications of Problem Solving, articulated with the Theory of Registers of Semiotic Representation (TRSR), for the learning of the concept of First-Degree Polynomial Function by 10th-grade students from a public high school in the countryside of São Paulo state, Brazil. The investigation was guided by the following research question: What are the implications of using Problem Solving, supported by the Theory of Registers of Semiotic Representation, for the learning of the concept of First-Degree Polynomial Function? The study followed the assumptions of a qualitative approach and was structured according to the four phases of Didactic Engineering: preliminary analysis, a priori analysis, experimentation, and a posteriori analysis. The didactic sequence was organized into six interdependent sessions, grounded in the ten steps of Problem Solving, and composed of problem situations designed to mobilize and coordinate different registers of representation, such as natural language, algebraic, tabular, and graphical registers. This organization fostered the development of cognitive activities of formation, treatment, and conversion, enabling the analysis of transitions between registers and of phenomena of congruence and non-congruence. Sixteen students participated in the study, and the written productions generated throughout the didactic sequence constituted the corpus of analysis. The results indicated that, initially, students mobilized the registers of representation in a fragmented way; however, over the course of the didactic sequence, they showed progress in the coordination between different representations. Data analysis showed that the articulation between Problem Solving and the Theory of Registers of Semiotic Representation constitutes a consistent theoretical-methodological framework for understanding the processes of construction of mathematical knowledge. It is concluded that this articulation fostered the understanding of the First-Degree Polynomial Function as a model of variation and as an instrument for analyzing contextualized situations, promoting the development of more elaborated forms of mathematical thinking.
Aspectos morfológicos e clínicos do manguito rotador em indivíduos com ombro congelado - Avaliação e tratamento
(Universidade Federal de São Carlos, 2025-12-19)
Policastro, Pablo Oscar
;
Camargo, Paula Rezende
;
https://lattes.cnpq.br/7602596349127054
;
https://orcid.org/0000-0002-8961-4353
;
https://lattes.cnpq.br/4462600785871860
Frozen shoulder (FS) significantly impacts daily life, leading to pain, disability, anxiety, and sleep disturbances. Diagnosis and treatment focus in FS is mainly delivered to the joint capsule; however, little information is available about the contribution of the rotator cuff in this clinical condition. This thesis integrates a cross-sectional study, a randomized clinical trial and a qualitative study. Study 1: Objective: To assess the pennation angle (PA) and Muscle Thickness (MT) of the supraspinatus, infraspinatus, and teres minor muscles in individuals with FS and compare with healthy controls and to compare the PA and MT of these rotator cuff muscles in individuals with FS under muscle contraction and resting conditions. Methods: a cross-sectional study was conducted. Results: 92 participants were divided into a control group and a FS group. There were no differences in the PA and MT in any of the muscles at rest and under contraction when comparing individuals with FS and healthy controls. All muscles showed increased PA and MT under contraction when compared to rest in individuals with FS. Conclusion: PA and MT of the supraspinatus, infraspinatus, and teres minor muscles did not differ between individuals with FS and healthy controls. PA and MT were higher during contraction than at rest. Study 2: Objective: To compare the effects of adding eccentric exercises to a standardized programme that includes manual therapy, stretching, education, and exercise on shoulder function pain intensity, range of motion, quality of life, fear-avoidance beliefs, pain catastrophizing, satisfaction with the treatment, PA, and MT of the supraspinatus, infraspinatus, and teres minor muscles in individuals with primary FS. Methods: This is a two-arm parallel, single-blinded superiority-controlled clinical trial where 40 individuals were randomized. Results and Conclusion: There was no significant interaction in the shoulder function, pain intensity, range of motion, quality of life, fear-avoidance beliefs, pain catastrophizing, satisfaction with the treatment, PA, and MT of the supraspinatus, infraspinatus, and teres minor muscles. Significant time effects (p < 0.001) were observed across most outcomes. The addition of eccentric exercises was not superior to a standardized programme comprising manual therapy, stretching, education, and exercise in individuals with primary FS. Study 3: Objective: To explore the experiences, beliefs, and perceptions of individuals with primary FS after a physical therapy program. Methods: A qualitative study using thematic analysis was conducted in individuals with primary FS after a physical therapy program. Results and Conclusion: Ten participants were included. Three main themes were generated: (1) “My life before starting the treatment”, (2) “Experiencing the treatment”, and (3) “How I am after the treatment”. This study provided information about the experiences, beliefs, and perceptions of individuals with primary FS after a physical therapy program. Overall, participants focused on the FS condition and its consequences, as well as on treatments received and their clinical impact. These findings may help improve the management of FS, guide therapists in their clinical practice, and enhance patient-therapist interactions.
Coprodução de biodiesel e triacetina por interesterificação enzimática de óleo de babaçu com acetato de etila
(Universidade Federal de São Carlos, 2025-12-19)
Nascimento, Camila Santos do
;
Tardioli, Paulo Waldir
;
https://lattes.cnpq.br/0808991927126468
;
https://lattes.cnpq.br/7046463044644622
;
Guimarães, José Renato
The growing global demand for energy and the environmental impacts associated with the intensive use of fossil fuels have driven the search for more sustainable routes for biofuel production. In this context, biodiesel stands out as a renewable alternative, particularly in Brazil, where its blending with fossil diesel is mandatory and currently corresponds to 15% (v/v). The conventional production route, based on chemical transesterification, generates large amounts of low-value glycerol and requires additional purification steps. As an alternative, this study investigated the co-production of biodiesel and triacetin through the enzymatic interesterification of babassu oil with ethyl acetate, a more sustainable reagent and compatible with en-zymatic catalysis. The process was carried out using the commercial lipase Eversa® Transform 2.0, previously immobilized on a hydrophobic Purolite® C18 support to enhance biocatalyst stability and enable reuse. Initially, babassu oil was character-ized in terms of its physicochemical properties and fatty acid composition. Subse-quently, a Central Composite Rotational Design was applied to evaluate the effects of temperature and the oil-to-ethyl acetate molar ratio on the yield of fatty acid ethyl esters (FAEEs). The optimal conditions were validated in a mechanically stirred re-actor with conventional heating, and the effects of enzyme loading and ethyl acetate addition mode were investigated. Under the optimized conditions: 15% enzyme load-ing (w/w relative to the oil), gradual addition of ethyl acetate, a temperature of 38 °C, and 72 h of reaction, the system with conventional heating achieved yields of 53.83% FAEEs and 2.10% triacetin. The application of microwave-assisted heating enabled comparable yields in a significantly shorter reaction time, reaching 57.58% FAEEs and 3.53% triacetin in only 6 h. These results demonstrate the potential of the enzymatic interesterification of babassu oil with ethyl acetate as a more sustain-able alternative route for biodiesel production, combined with the generation of tri-acetin as a higher value-added coproduct, and highlight the advantages of micro-wave heating for process intensification.
Redes neurais clássicas e quânticas
(Universidade Federal de São Carlos, 2025-12-19)
Lima, Gubio Gomes de
;
Gomes, Raphael Fortes Infante
;
https://lattes.cnpq.br/5150160591123690
;
https://orcid.org/0000-0002-7199-6533
;
Villas-Bôas, Celso Jorge
This Ph.D. Thesis is dedicated to the integrated study of classical and quantum neural networks applied to physical systems, with emphasis on continuous-variable quantum computing (CVQC), physics-informed inverse problems, and second-order neurons with mixed functions for solving differential equations. The investigation is structured into four parts and demonstrates: the feasibility of QNNs in CVQC for regression tasks; the robustness of the PINNverse method for parameter inference in open systems; and the gains in accuracy and interpretability provided by mixed-function neurons, which enable parsimonious functional compositions. In the numerical results, the application of quantum neural networks to regression problems stands out, achieving errors on the order of 10−5. When comparing quantum and classical neural networks, an advantage was observed for the quantum case in obtaining solutions for sinusoidal functions, depending on the comparison criteria and the hyperparameters defined for the classical network. The PINNverse method demonstrated the ability to recover Hamiltonian parameters and dissipative rates with high precision, even in the presence of simulated noisy data. When applied to experimental data, the method showed excellent agreement with values reported in the literature, achieving errors smaller than those of the comparative models. Finally, in the MixFunn and Mix2Funn architectures, the model achieved low errors between analytical and simulated solutions, while also being capable of extracting the analytical expression itself. Another relevant result was the advantage in the number of parameters required to solve the differential equations, evidencing the structural efficiency of the proposed model.
O impacto do racismo nas atividades de estudantes universitários sob a perspectiva da Terapia Ocupacional: uma revisão de escopo
(Universidade Federal de São Carlos, 2025-12-20)
Benedicto, Nicole Luisa Francisco
;
Silva, Carla Regina
;
https://lattes.cnpq.br/6417501858864106
;
https://orcid.org/0000-0002-7079-8340
;
http://lattes.cnpq.br/7481125439375380
This undergraduate thesis consists of a scoping review aimed at mapping and analyzing the existing scientific literature on the impacts of racism on university students' activities from the perspective of Occupational Therapy. The search was conducted in the SciELO, ERIC, CAPES, LILACS, and OTseeker databases, using the keywords "racism," "university," and "occupational therapy," in Portuguese, Spanish, and English, up to the year 2024. Of the 17 articles initially retrieved, 6 were selected for addressing the three thematic axes in an integrated manner. The results indicate a scarcity of studies that articulate racism, the university environment, and Occupational Therapy, highlighting a gap in the literature regarding the analysis of how racism compromises engagement, participation, and the meaning attributed to human activities in academic daily life. It is concluded that, although there have been advances in discussions on racism and mental health, Occupational Therapy still needs to expand its investigations into the effects of racial aggressions on the occupation and quality of life of Black university students.
As possibilidades de ação da terapia ocupacional em uma Instituição de Longa Permanência para idosos e suas reverberações formativas: um relato de experiência
(Universidade Federal de São Carlos, 2025-12-22)
Araújo, Beatriz Financi
;
Oliveira, Marina Leandrini de
;
https://lattes.cnpq.br/4017135326666314
;
https://lattes.cnpq.br/4405738885572167
Introduction: Based on empirical data, population aging is a growing process and, beyond being a stage of life, it has become a relevant social issue that reveals a society that is socially, economically, and politically unprepared to support and guarantee the rights of older adults. In this context, Long-Term Care Institutions for Older Adults (LTCIs) play an important social role by providing shelter and care for the elderly population. However, for these institutions to effectively promote comprehensive care, a multidisciplinary team of professionals capable of addressing the intrinsic issues and specific needs of this population is required. Among these professionals, the occupational therapist stands out. Objective: This study aimed to report the experience of an occupational therapy student during an internship at an LTCI in a municipality in the interior of the state of São Paulo, Brazil, and to understand the possibilities of occupational therapy practice as a technical and scientific field of knowledge. Methodology: The methodological approach was based on an experience report derived from the observation of occupational therapy practice, as well as from institutional records and written notes produced by the intern over a four-month period. Results: The occupational therapy actions and their main objectives were described, establishing four analytical domains to technically systematize such practices: relationship, articulation, mediation, and professional training. Conclusion: It is concluded that the relational domain constitutes the foundation of all occupational therapy actions developed within the LTCI, demonstrating that the bonds established among the occupational therapist, older adults, staff, family members, and the community are essential for expanding support networks and positively transforming daily institutional life. Articulation, mediation, and professional training are also essential components for the development of new theoretical and methodological frameworks in occupational therapy as a field of knowledge. The practices carried out in the LTCI revealed the difficulty of technically describing occupational therapy actions, given that occupational therapy encompasses a wide range of possibilities and objectives. Finally, it is reaffirmed that aging is a universal process among living beings but is experienced in singular ways and trajectories. Therefore, promoting and ensuring healthy and dignified aging also requires a strong commitment to the education and training of future professionals.
Cartografia institucional das reestruturações no sistema estadual de extensão rural na região Sudeste do Brasil
(Universidade Federal de São Carlos, 2025-12-26)
Souza, Fernanda Maria Castro de
;
Borsatto, Ricardo Serra
;
https://lattes.cnpq.br/5988987575101933
;
https://orcid.org/0000-0002-7594-479X
The work analyzes the historical process of formation, consolidation, and restructuring of public Institutions of Technical Assistance and Rural Extension (ATER) in the states of the Southeast Region of Brazil, focusing on the trajectory of EMATER-MG, EMATER-RIO, INCAPER-ES, and CATI-SP. A documentary and bibliographic analysis was carried out, covering state legislation, institutional reports, historical memorials, and academic publications that address the evolution of rural extension in the country. From the creation of the first Rural Credit and Assistance Associations in the 1940s and 1950s, through the national coordination carried out by ABCAR and later by EMBRATER, which was dissolved in 1989, marking a turning point, generating systemic disarticulation and requiring each state to autonomously reconfigure its ATER structure, which resulted in different arrangements in the Southeast region. Minas Gerais managed to maintain institutional continuity, consolidating a stable network of offices and participatory methodologies. In Espírito Santo, the integration between research and extension gave rise to Incaper, which is considered today a model of articulation between technology generation and transfer. São Paulo structured its own system through CATI, prioritizing decentralization and municipal technical support. Meanwhile, Rio de Janeiro experienced a path marked by political-administrative instabilities, mergers, and changes in affiliation. It is concluded that, although rural extension remains strategic for family farming and territorial development, its current effectiveness depends on stable funding, state policies, and the appreciation of the technical staff, since state systems still reflect the historical inequalities and disruptions that marked their formation.
Precificação de ativos utilizando cadeias de Markov e aprendizagem por reforço: uma possível abordagem para previsão financeira
(Universidade Federal de São Carlos, 2025-12-28)
Moraes, Lucas Gabriel Bassan de
;
Cardoso, Claudio Antonio
;
https://lattes.cnpq.br/0332061570052918
Markov chains and Reinforcement Learning methods have emerged as promising tools for modeling complex stochastic systems, especially in financial environments characterized by uncertainty and volatility. In this context, the present work proposes the joint application of these approaches to the pricing and forecasting of financial assets, using Petrobras (PETR4) and Vale (VALE3) stocks as case studies. The developed model integrates the probabilistic dynamics of discrete-time Markov chains with the adaptive capabilities of the Q-Learning algorithm through reinforcement learning, enabling the agent to adjust its buy and sell decisions based on the defined accumulated rewards. The methodology was implemented in the Python programming language and evaluated using the Root Mean Squared Error (RMSE) metric, comparing the simulated results with the real values of each asset over predefined periods and algorithm-defined parameters. The obtained results demonstrated that the model is capable of consistently representing the evolution of asset prices, showing better performance over shorter training horizons depending on the asset. This behavior reinforces the potential of integrating stochastic techniques and machine learning methods for financial forecasting in emerging markets.
O controle vagal da circulação periférica pulmonar na cascavel modula ajustes hemodinâmicos relevantes à mudança de temperatura
(Universidade Federal de São Carlos, 2026)
Leite, Cléo Alcantara Costa
;
https://lattes.cnpq.br/2031764784233552
;
https://orcid.org/0000-0002-5648-5903
Level of Traffic Stress, Urban Pavement Service Index, and road slope combined for the evaluation of a 5-, 10- or 15-minute Neighborhood
(Universidade Federal de São Carlos, 2026)
Kodama, Gabriella Mie Hanada
;
Monari, Marcelo
;
http://lattes.cnpq.br/7387240110294967
;
http://lattes.cnpq.br/5944412594047895
;
https://orcid.org/0009-0000-7863-7405
The X-minute Neighborhood (XmN) concept advocates the development of self-sufficient territorial units that encourage active travel, contribute to reducing dependence on private motorized vehicles, and mitigate urban sprawl. Despite its theoretical significance, the concept remains poorly systematized for large-scale application, a limitation largely stemming from the difficulty of developing a universal approach. The objective of this study was to combine key variables influencing bicycle use into a cyclability index to evaluate the adherence of spatial units to the XmN concept. To demonstrate the proposed approach, a case study was conducted in the Cidade Jardim neighborhood of São Carlos, SP, Brazil. The method comprised the geoprocessing of open and field-surveyed spatial data in GIS; georeferencing of bicycle Trip Attractors (TAs); assessment of Level of Traffic Stress (LTS), Urban Pavement Service Index (ISU), and road slope for cyclable road segments under mixed traffic; formulation and calculation of a cyclability index for these segments; and evaluation and mapping of 5mN, 10mN, and 15mN conditions. The results yield a straightforward visual and numerical interpretation of the cyclability potential and the XmN potential of the case study, reflecting an optimistic outlook for the studied neighborhood. However, none of the input variables account for motorized traffic flow when assessing the operational quality of cycling routes. Therefore, care must be taken to complement the proposed approach with methods and techniques that address this variable, such as updated versions of the LTS classification. Furthermore, not all TAs required to fulfill this framework are currently present within the neighborhood.
As necessidades informacionais sobre a menopausa: resultados de uma pesquisa com mulheres no Brasil
(Universidade Federal de São Carlos, 2026)
Andrikonis, Juliana Buzinaro
;
Furnival , Ariadne Chloe Mary
;
http://lattes.cnpq.br/2121898429151597
;
http://lattes.cnpq.br/1291482506649810
;
https://orcid.org/0009-0008-9520-4714
A menopausa é um processo natural esperado para mulheres cisgênero, mas a escassez de informações claras e a persistência de tabus culturais sobre esta fase da vida da maioria das mulheres dificultam o acesso a recursos que poderiam auxiliar nesse período. A pesquisa adota uma abordagem descritiva, exploratória e quantitativa via um survey, com coleta de dados por meio de um questionário online. Foram obtidos 208 questionários completos válidos. Houve respostas de 18 estados brasileiros. Os achados sugerem que, mais do que diferenças regionais, a busca por informação é influenciada pelas necessidades informacionais decorrentes das fases do climatério, bem como pela capacidade e autonomia das mulheres na busca por informação. Conclui-se que a área da saúde poderia se beneficiar da integração de serviços de informação sob a ótica da Ciência da Informação, especialmente para grupos invisibilizados, nos quais o acesso a informações baseadas em evidências pode ser limitado.
A pulsão de morte como agente de transformação: novos caminhos em Freud
(Universidade Federal de São Carlos, 2026)
Kazmarek, Julio Moya
;
Soria, Ana Carolina Soliva
;
http://lattes.cnpq.br/2903416522364971
;
https://orcid.org/0000-0002-7762-3981
;
http://lattes.cnpq.br/3049122030189484
In 1920, when Sigmund Freud introduced the second drive theory in his book “Beyond the Pleasure Principle” (1920/2010d), he triggered a major turning point in psychoanalysis with the emergence of the concept of the death drive. In the first phase of psychoanalytic theory, it was believed that clinical treatment could offer a definitive solution to the problem of civilizational malaise, for example, through the sublimation of the sexual drive. However, in a second phase—more specifically with the shift to the second drive theory—this "peaceful register" came to be seen as something unattainable (Birman, 2005). From this point on, a certain sense of tragicity began to permeate the Freudian thought, due to the impossibility of reconciling human psychic functioning—marked by a death drive that propels aggressive and destructive acts (Freud, 1930/2010e, p.55)—with civilization. The concept of the death drive, however, was later expanded and even reinterpreted by several of Freud’s followers, such as Jacques Lacan, Jean Laplanche, and André Green. The aim of the present study is to investigate whether, in light of the critiques and reformulations posed by these post-Freudian theorists regarding the concept of Thanatos, it is possible to develop a new paradigm that conceives the death drive as a pathway for the transformation of the individual’s psychic processes, based on its “de-objectalizing function” (Green, 1993/2009).
Registros recuperados de bases de dados bibliográficas sobre o tema competéncia digital e segurança online
(Universidade Federal de São Carlos, 2026)
Furnival, Ariadne Chloe Mary
;
https://lattes.cnpq.br/1291482506649810
;
https://orcid.org/0000-0002-2344-4400
A influência do narcisismo nas manifestações da pulsão escópica em Freud
(Universidade Federal de São Carlos, 2026)
Almeida, Marina Zupiroli de
;
Soria, Ana Carolina Soliva
;
http://lattes.cnpq.br/2903416522364971
;
https://orcid.org/0000-0002-7762-3981
;
http://lattes.cnpq.br/2610137747919007
The present study investigates the possibility of correlating the voyeurism-exhibitionism pair – manifestations of the scopic drive – with the individual's narcissistic formations, based on Freudian theory. We begin with the hypothesis that the active and passive manifestations of the drive to look manifest themselves in adult sexuality propped upon the period of the ego’s structuring. We rely on the 1915 Freudian construction regarding the drive to look, which divides it into autoerotic, active, and passive stages of development and proposes an association between these and the stages of ego development: primary narcissism, object-love, and secondary narcissism. We begin by addressing Freud's first drive theory, distinguishing the drive to look from the others to highlight how it gains prominence in the transition from the first to the second drive theory. Next, we address the perversions to demonstrate that looking is positioned within the drive structure beyond a fetishistic perversion. Finally, an association between the scopic drives and narcissism is proposed, based on the infant's primordial relationship with the parents – a situation in which the child's primary narcissism emerges and in which the parents' narcissism is revived through infant care. We conclude that adult exhibitionist and voyeuristic manifestations represent the mode of operation of the narcissistic libido, the former being mirrored in the infantile narcissistic position formed through parental care, and the latter analogous to the position of revival of the parents' narcissism, which has been obscured over time.
Avaliação da segurança viária de ciclistas de Sertãozinho, São Paulo, Brasil, e proposta de ações mitigadoras com base no georreferenciamento de sinistros de trânsito
(Universidade Federal de São Carlos, 2026)
Cassanti, Isabella
;
Monari, Marcelo
;
http://lattes.cnpq.br/7145992897885055
;
http://lattes.cnpq.br/5944412594047895
;
https://orcid.org/0009-0001-9268-5013
Os sinistros de trânsito impactam significativamente o número de mortes no Brasil. A mitigação da insegurança viária é especialmente importante para proteger os usuários do transporte ativo, isto é, pedestres e ciclistas, visto que estes representam a parcela de maior vulnerabilidade na rede de transportes. Nesse sentido, registros georreferenciados de sinistros de trânsito são imprescindíveis para a elaboração de diagnósticos de segurança viária e o desenvolvimento de modelos voltados à compreensão dos fatores associados à frequência e à severidade desses eventos, além de subsidiarem a tomada de decisões para a mitigação de ocorrências futuras. O objetivo deste trabalho foi avaliar a segurança viária de ciclistas em um município brasileiro de pequeno porte (Sertãozinho, SP). Para tanto, realizou-se o georreferenciamento em SIG de 13 sinistros fatais e 223 não fatais envolvendo ciclistas no município estudado, filtrados da base de dados abertos do sistema Infosiga-SP para o período de 2015 a 2026, o que permitiu a geração de mapas de densidade de Kernel referentes à concentração desses eventos. A partir dos diagnósticos analítico e espacial, procedeu-se à identificação de 8 pontos críticos a serem auditados em campo e analisados de forma retrospectiva com auxílio do Google Street View, seguida da proposta de intervenções mitigadoras da insegurança viária de ciclistas locais, incluindo técnicas de traffic calming, provisão de infraestrutura cicloviária e adequações na geometria viária. Os resultados sugerem a simplicidade de aplicação do método e o potencial de reprodução em outros locais de estudo que disponham de informações análogas, como os demais municípios paulistas, que são integralmente abrangidos pela plataforma Infosiga-SP. Na cidade de Sertãozinho/SP, os pontos críticos de ocorrência e severidade de sinistros envolvendo ciclistas concentram-se em interseções viárias entre ruas e avenidas de maior hierarquia funcional. Ademais, condições precárias de sinalização e a escassa provisão de infraestrutura cicloviária também contribuem para a persistência desses eventos. Por fim, os sinistros fatais de ciclistas no município ocorrem frequentemente com o envolvimento de veículos pesados, a exemplo de ônibus e caminhões.
Controle de velocidade de um robô móvel autônomo utilizando lógica fuzzy
(Universidade Federal de São Carlos, 2026-01-07)
Souza, Hugo da Silva e
;
Inoue, Roberto Santos
;
https://lattes.cnpq.br/6221209121565990
;
https://orcid.org/0000-0003-2813-9330
;
https://lattes.cnpq.br/1424302433606983
The increasing adoption of autonomous mobile robots in industrial, logistics, and academic applications imposes significant challenges on speed control, especially in scenarios subject to nonlinearities, uncertainties, and load variations. Traditionally, speed control is performed using classical controllers, such as the Proportional–Integral (PI) controller, which provides satisfactory performance in linear systems but exhibits limitations under dynamic operating conditions. In this context, this work proposes the development and validation of a fuzzy logic–based speed control system applied to a differential-drive autonomous mobile robot. The fuzzy controller was designed using a Mamdani-type inference system, with the speed error and the variation of the error as input variables and an incremental control output. The methodology included experimental plant characterization, embedded system implementation, and experimental tests under different load conditions. The performance of the fuzzy controller was compared with that of a classical PI controller using metrics such as response time, steady-state error, and the Integral of Absolute Error (IAE). Experimental results demonstrate that the fuzzy controller achieved improved robustness and superior speed tracking performance, particularly under load variations, validating the proposed hypothesis and highlighting the potential of fuzzy logic for mobile robotics applications.