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Desenvolvimento de matrizes carbonáceas derivadas de casca de arroz e CMK-3 para baterias de lítio-enxofre: caracterização e aplicação em coin cells
(Universidade Federal de São Carlos, 2024-12-16)
Ruellas, Thamara Machado de Oliveira
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Agostini, Marco
;
https://orcid.org/0000-0002-4152-8894
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Paris, Elaine Cristina
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https://lattes.cnpq.br/8475640212486290
Lithium-sulfur batteries (LSBs) emerge as a promising alternative for energy storage, gaining renewed international interest due to their high theoretical energy density and the low cost of sulfur. However, they still face challenges, such as sulfur’s low electrical conductivity, the shuttle effect caused by soluble polysulfides, and volumetric expansion during cycling, which can compromise performance and lifespan. In this thesis, first- and second-generation carbonaceous materials derived from rice husk (RHC) and mesoporous carbon (CMK-3), respectively, were developed and characterized, focusing on their application as cathode materials in LSBs. For the development of CMK-3, SBA-15 was used as a mesoporous template, followed by an optimized washing protocol that ensured efficient removal of residual silica, resulting in a carbonaceous matrix with high surface area and suitable porosity for sulfur infiltration. Sulfur infiltration studies showed that silica content influences the optimal infiltration temperature, which is 155 °C for CMK-3 with low silica content and 165 °C for both CMK-3 with high silica content (CMK-3_SiO2) and RHC. Electrochemical characterization demonstrated that CMK-3 with low silica content achieved a specific capacity of up to 771 mAh/g, with a capacity retention of around 75% after 150 cycles at C/10. In contrast, RHC, even without additional treatments for silica removal, exhibited significant cycle stability, maintaining a capacity close to 500 mAh/g over prolonged cycling. The addition of Nb2O5 nanofibers as a coating on RHC/S electrodes promoted faster stabilization of specific capacity and sustained stability over 150 cycles. Optimizing cell assembly parameters, including the selection of a Whatman glass fiber separator and proper electrolyte distribution, was essential for enhancing electrochemical performance. The results obtained demonstrate the potential of the developed materials for applications in lithium-sulfur batteries and provide new insights into the underlying mechanisms, paving the way for future research and technological innovations in the field.
Proposta de um espaço educador virtual para o CECFAU – Centro de Conservação de Fauna Do Estado de São Paulo
(Universidade Federal de São Carlos, 2024-12-16)
Bueno, Giovanna Cristine de Sena
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Cardoso-Leite, Eliana
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https://lattes.cnpq.br/2186623269243747
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https://orcid.org/0000-0003-3152-2576
;
Silva, Rosana Louro Ferreira
This study addresses the importance of environmental education in the context of biodiversity conservation, with a focus on endangered species maintained by the Wildlife Conservation Center of the State of São Paulo (CECFau). The main objective was to understand the perspectives and experiences of the CECFau technical team in order to develop a Virtual Educational Space, a tool aimed at raising public awareness about wildlife conservation by integrating key conservation concepts. To achieve this, semi-structured interviews were conducted with CECFau technicians to identify essential themes for shaping the educational space, emphasizing the need to increase public knowledge about the existence and goals of CECFau, as highlighted by the interviewees. The Virtual Educational Space serves as a resource to increase CECFau's visibility by utilizing virtual, audiovisual, and interactive tools, and by developing interactive materials that provide access to the center’s technical-scientific knowledge while encouraging community involvement. Activities include a 3D virtual tour, a video, and a game. The virtual tour offers an immersive experience of the habitats and introduces the animals of CECFau. The video clarifies concepts related to ex-situ and in-situ conservation in an integrated manner, while the game, using a "conflict theater" methodology, promotes the development of concepts related to wildlife conservation through the interactive and dynamic resolution of problem-based scenarios. Thus, the project has demonstrated its potential for CECFau’s educational actions, which can foster greater integration between science, community, and conservation policies.
Unraveling the mechanism of CH3CH2OH dehydrogenation on m-ZrO2(111) surface, Au13 cluster, and Au13 cluster/m-ZrO2(111) surface: a DFT and microkinetic modeling study
(Universidade Federal de São Carlos, 2024-12-16)
Morais, Leonardo Henrique de
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Andres, Juan
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Gouveia, Amanda Fernandes
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https://lattes.cnpq.br/5922614139360461
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https://lattes.cnpq.br/1053052803420461
In this study, we investigate the dehydrogenation of ethanol and the production of CH3CHO and H2 on the m-ZrO2(111) surface, an Au13 cluster, and Au13/m-ZrO2(111) surface, using density functional theory simulations. Our primary objective is to elucidate the reaction mechanisms through thermodynamic and kinetic analysis of these catalytic processes, identifying the transition states. To further validate these findings, we employ a microkinetic model to calculate the rate constants, offering a detailed and comprehensive understanding of the reaction pathways involved. First-principles calculations were conducted using the Quantum ESPRESSO package, applying the BEEF-vdW functional for exchange and correlation interactions. The model systems were constructed in a two-dimensional supercell with periodic boundary conditions in the x and y directions, while a vacuum layer of 15 Å was introduced along the z direction to avoid interactions between periodic supercell slabs. The ethanol dehydrogenation process on both the m-ZrO2(111) surface and the Au13 cluster proceeds via two fundamental steps: the initial cleavage of the O–H bond in ethanol, yielding a CH3CH2O intermediate, followed by the formation of H2. The O–H bond dissociation occurs through interactions with lattice oxygen on the m-ZrO2(111) surface or low-coordination Au atoms in the Au13 cluster. While microkinetic modeling reveals relatively low rate constants for this pathway, the Au13/m-ZrO2(111) composite introduces an additional step in which a hydrogen atom migrates from the m-ZrO2(111) surface to the Au13 cluster. Despite this added step, our analysis shows that the activation energies for all three transition states are comparable, with the Au13/m-ZrO2(111) system demonstrating lower energy barriers and more favorable rate constants for ethanol dehydrogenation. These findings highlight the potential of Au13 clusters supported on m-ZrO2(111) for efficient and selective production of CH3CHO and H2, offering key insights for the design of advanced catalytic systems.
Mulheres negras na construção do movimento Pan-Africano do início do século XX
(Universidade Federal de São Carlos, 2024-12-16)
Santos, Fernanda Vieira da Silva
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Rodrigues, Tatiane Cosentino
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https://lattes.cnpq.br/8361431964064731
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https://orcid.org/0000-0002-4402-2805
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https://lattes.cnpq.br/2007812280080118
Pan-Africanism was a cultural, philosophical, social, and political movement that sought to unify the Black diaspora and advocate for their return to the African continent. Prominent figures such as W.E.B. Du Bois, Kwame Nkrumah, and George Padmore are widely recognized within this movement. However, lesser-known contributors, including Addie Waites Hunton, Ida Alexander Gibbs Hunt, and Amy A. Garvey, remain underrepresented in historical narratives. This research aims to systematize their participation and highlight their contributions to Pan-Africanism. The central hypothesis posits that these women made significant contributions to the movement, particularly within the academic and political domains of Black feminism. Grounded in the theoretical perspectives of Collins (2016) and Perry (2009), this study examines the marginalization of Black women in intellectual discourse and their political engagement in such movements. The life trajectories of Addie, Ida, and Amy provide a foundation for reflecting on these themes. Methodologically, the study adopts an approach likened to embroidery, stitching together narratives that position these women as pivotal actors in the Pan-African movement. This process reconstructs the "framework" of their historical presence and significance. In conclusion, the findings reveal that these women played indispensable roles in the development of Pan-Africanism. They articulated a distinct perspective that interconnected race, gender, and class in the broader struggle for political and cultural liberation. This research contributes to the field of diaspora studies and Black agency by integrating their overlooked contributions into the larger narrative of Pan-Africanism.
Analysis of 24-hour physical behaviours among office workers: approaches, impacts of the pandemic, and methodological considerations
(Universidade Federal de São Carlos, 2024-12-16)
Silva, Luiz Augusto Brusaca de Azevedo Laureano da
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Oliveira, Ana Beatriz de
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https://lattes.cnpq.br/1049547759186556
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https://orcid.org/0000-0002-2081-0292
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https://lattes.cnpq.br/4947421197401973
Introduction: Physical behaviours over a 24-hour day—including sitting, standing, moving, and sleeping—are critical to health. Office workers, particularly those who are overweight or obese, are at risk of developing health issues due to prolonged sedentary time. The COVID-19 pandemic further complicated physical behaviour patterns, especially with the shift to remote work. While interventions to change physical behaviours exist, little is known about their effectiveness in high-risk populations or how study design factors influence the accuracy of observed group differences in physical behaviours. This thesis aimed at addressing these gaps through three different studies: (1) evaluating the effectiveness of different intervention approaches to improve 24-hour time-use (e.g., decrease sitting), (2) investigating the impact of work location and weight status on temporal patterns of physical behaviours during the pandemic, and (3) examining the methodological factors influencing the accuracy of group differences in 24-hour time-use. Study 1 – Objective: To compare the effectiveness of the traditional “reduce sitting at work approach” and the “24-hour time-use approach” in modifying 24-hour time-use compositions of physical behaviours among overweight and obese office workers. Methods: A non-randomized pilot study was conducted with 45 office workers assigned to three groups: “Reduce sitting at work” (n=15) receiving an intervention focused on reducing sitting time at work; the “24-hour” (n=15) receiving an intervention aiming to reduce sitting at work as well as promoting behavioural changes around 24 hours (e.g., sedentary lifestyle, benefits of physical activity, and healthy sleep hygiene); or “control” (n=15) without any intervention. Daily time spent in physical behaviours (sitting, standing, active, and in bed) was monitored for 7 days using a thigh-worn accelerometer at baseline, and at the 3- and 6-month follow-ups. Intervention effects were analysed using linear mixed models, with a compositional data analysis approach. Results and Conclusion: No significant advantage of the “24-hour time-use approach” over the “reduce sitting at work approach” was observed. Both intervention approaches resulted in reduced sitting time and increased standing time compared to the control group at 3-month follow-up, but these effects were not sustained at 6-month follow-up. Domain-specific (i.e., work and leisure) analysis revealed that minimal changes occurred during leisure hours. Workplace-delivered interventions remain limited in promoting consistent behaviour changes throughout the entire day. Study 2 – Objective: To examine differences in temporal patterns of physical behaviours, assessed using accelerometry, on working and non-working days among normal-weight (body mass index [BMI] <25 kg/m2) and overweight (BMI ≥25 kg/m2) office workers who were either working exclusively at the office (WAO) or exclusively from home (WFH) during the COVID-19 pandemic. Methods: This cross-sectional study included 43 workers WAO (21 normal-weight and 22 overweight) and 73 workers WFH (33 normal-weight and 40 overweight). Physical behaviours were assessed for 7 days using a thigh-worn accelerometer, and compositions were analysed using compositional data analysis approach. Two-way analysis of covariance was used to test differences in behaviours during working days and non-working days, with workplace and weight status entered as between-subject factors, controlling for gender and age. Results and Conclusion: During working days, workers WFH spent more time sitting and in bed, with less temporal variation in behaviours, compared to workers WAO. Overweight workers spent more time sitting and exhibited less temporal variability in sitting behaviours than normal-weight workers. On non-working days, behaviours did not differ significantly by work location, while overweight workers spent more time sitting in total, and less time sitting in short and moderate uninterrupted bouts compared to normal-weight workers. These findings highlight the need for interventions to address prolonged sitting and low variability in behaviours, particularly among workers WFH and overweight workers. Study 3 – Objective: To determine how the number of participants in an overweight and a normal-weight group, the number of measurement days per participant, and balancedness of group sizes influence the accuracy of group differences in 24-hour physical behaviours. Methods: Simulated datasets based on real accelerometry data from 225 office workers (103 overweight and 122 normal-weight) were used to examine 96 (8x4x3) sampling strategies. Trueness (the size of the difference), precision (the 95% confidence interval width), and likelihood of significant group differences were evaluated under varying the total number of participants (8 alternatives: 18, 36, 54, 72, 90, 108, 126, 144), the number of working days per participant (4 alternatives: 1, 2, 3, 4), and the balance between populations (3 alternatives: ratios 1:1 [balanced], 1:2 [unbalanced favouring normal-weight], and 2:1 [unbalanced favouring overweight]). Results and Conclusion: Trueness (i.e., bias) was influenced by the number of measurement days but not by the number of participants. Precision improved with more participants and days, and balanced samples provided more precise estimates. Future studies should carefully balance participant recruitment and measurement days to optimize accuracy and cost-efficiency.
Avaliação da compatibilização de planos de bacia hidrográfica, diretor urbanístico e saneamento básico. Estudo de caso: municípios da bacia hidrográfica do rio Pardo
(Universidade Federal de São Carlos, 2024-12-16)
Rezende, Danilo
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Ventura, Katia Sakihama
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https://lattes.cnpq.br/0765182109837821
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https://lattes.cnpq.br/0212306491897703
The river basin plans, urban master plans and basic sanitation plans are planning instruments provided for, respectively, in Federal Laws No. 9,433/97, 10,257/01 and 11,445/07. These laws determine that the plans must be compatible with each other, however, they do not provide means to assess this condition. In this sense, the objective of this research was to propose a conceptual model for assessing the compatibility between river basin plan, urban master plan and basic sanitation plan and to apply it in 7 municipalities of the Pardo River Basin (BH-Pardo). The methodology is exploratory, with an inductive approach and application in a case study. The model developed was called the Plan Compatibility Assessment System (SACP), and is composed of compatibility indexes between the Urban Master Plan (PDU) x River Basin Plan (PBH), Municipal Basic Sanitation Plan (PMSB) x PBH, PMSB x PDU and PMSB x PDU x PBH. The application of the SACP in BH-Pardo allowed to verify that Brodowski's plans are “compatible” and the plans of the other municipalities (Cravinhos, Jardinópolis, Ribeirão Preto, São José do Rio Pardo, Tambaú and Vargem Grande do Sul) are “satisfactorily compatible”, when assessing the three plans together (PMSB x PDU x PBH). The compatibility between the various planning instruments helps to minimize the environmental impacts resulting from urbanization, seeking a balance between human actions, the preservation of the environment and water resources.
O projeto crítico de Samuel Johnson no The Rambler: uma crítica literária entre os antigos e os modernos
(Universidade Federal de São Carlos, 2024-12-16)
Castro, Diego de
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Ferreira, Carla Alexandra
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https://lattes.cnpq.br/5522506928191940
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https://orcid.org/0000-0002-2706-5766
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https://lattes.cnpq.br/3895196547774076
The aim of this thesis is to conduct a political reading of Samuel Johnson's literary criticism in his series of essays titled The Rambler (1750-52), initially published as a periodical. This analysis will demonstrate that the argumentative structure of Johnson’s literary criticism, in addressing the aesthetic debates of his era - particularly the quarrel between the ancients and the moderns - constitutes a critical project that, in its form, dramatizes the bourgeois intellectual’s attempt to reclaim an idealized sphere of early 18th-century England. This ideal space was represented by a bourgeois public sphere, a symbol of a historical moment characterized by an intimate connection between the literary critic and his reading public, a context increasingly eroded by the advancing productive forces of a new phase of capitalism and the dissolution of the Ancien Régime. As the central object of this study is Johnson’s literary criticism, this analysis will center on essays from Rambler numbers 1, 3, 4, 36, 37, and 156.
Detecção precoce de atraso neuromotor e déficits neurológicos em lactentes de risco biológico nos primeiros quatro meses de vida: estudo longitudinal
(Universidade Federal de São Carlos, 2024-12-16)
Paz, Monique Maria Silva da
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Tudella, Eloisa
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https://lattes.cnpq.br/3207258034860219
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https://orcid.org/0000-0003-0824-7350
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https://lattes.cnpq.br/1587172056553425
Typical motor development can be negatively influenced by biological risk factors. Monitoring the neuromotor development of these infants is essential to perform early detection of neuromotor delays and/or deficits in a qualitative and quantitative manner to predict future neuromotor outcomes. To our knowledge, this is the first study to simultaneously use the GMA, MOS-R, HINE, and IMP to understand neuromotor development. Thus, the objective of this study was to detect neuromotor delays or deficits early in the first four months of life in infants at biological risk. To this end, a cohort study was carried out, in which 30 infants were included in the risk group and 30 healthy full-term infants were included in the control group. The infants were assessed at two, three and four months and reassessed at six months of age. In addition to the Identification Form and the Affordances in the Home Environment for Motor Development – Infant Scale questionnaire, four other assessment instruments were used: the General Movements Assessment, The Motor Optimaly Score – Revised, Hammersmith Infant Neurological Examination and Infant Motor Profile. Statistical analysis was performed using the Statistical Package for the Social Sciences and R Studio, with a significance level of 5%. It was possible to clearly demonstrate the effectiveness of early detection of neuromotor delays and/or deficits in the first four months of life in infants at biological risk to predict neuromotor outcome at six months. Signs of neuromotor alterations were observed in the first months, allowing us to infer which deficits in neuromotor performance are present in the biological risk groups and in full-term infants during the sixth month. In addition to the total scores of the instruments used at two, three, and four months of age, their subscores/domains were able to predict the risk of developmental delay. Among the four instruments, the HINE presented the best predictive capacity, being included as a predictor variable in all six regression models conducted in this study. Furthermore, the correlations between the environmental factors assessed by AHEMD-IS and the neuromotor results highlighted the importance of environmental enrichment for neuromotor development in the first six months of life. Given this, the need for early detection of neuromotor delays or deficits in infants at biological risk before four months of age is undeniable, enabling the implementation of early intervention programs during periods of greatest neuroplasticity.
Escolha do ladrilhamento para um simulador de ondas acústicas em gpus por meio de aprendizado de máquina
(Universidade Federal de São Carlos, 2024-12-16)
Silva, Tiago da
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Senger, Hermes
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https://lattes.cnpq.br/3691742159298316
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https://lattes.cnpq.br/9807548046251584
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Senger, Hermes
The simulation of acoustic wave propagation is crucial in fields such as geophysics and seismic imaging, being modeled by numerical methods such as finite difference methods (FDM). These simulations are resource-intensive, especially in large-scale problems with 3D grids and multiple time steps. The use of GPUs has shown promise due to their parallel processing power, but one challenge is the memory access overhead. Tiling, which divides the grid into smaller blocks, improves data locality, optimizing memory access and increasing performance. However, selecting the optimal tile size for a given computation is not a trivial task. The optimal tile size depends on a variety of factors, including the specific architecture of the GPU, the size of the problem being solved, and the characteristics of the data being processed. In practice, the optimal tile size can vary significantly depending on the GPU’s memory hierarchy, the bandwidth between the processor and memory, and the computational intensity of the kernel. Moreover, the choice of tile size can also affect the parallelism and load balancing of the computation, making it a complex trade-off that requires careful tuning. In this study, we used machine learning to predict optimized tile sizes for acoustic wave simulations. We evaluated six algorithms (KNN, Decision Tree, Random Forest, XGBoost, LightGBM, and J48), and the results showed significant improvement, with the best model achieving improvement coefficients of 1.17 for the Turing GPU (RTX2080) and 1.11 for the Volta GPU (V100), as well as a success rate of over 75% for both GPUs.
Casamento tradicional na Guiné-Bissau : uma compreensão da instituição do casamento Fula
(Universidade Federal de São Carlos, 2024-12-17)
Baldé, Fatumata Djarai
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Peggion, Edmundo Antonio
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https://lattes.cnpq.br/9849805103860827
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https://orcid.org/0000-0001-9056-9417
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Lanna, Marcos Pazzanese Duarte
The aim of this research is to present the perspectives of the traditional marriage institution of the Fulani ethnic group of Guinea-Bissau, as one of the most important traditional practices of this people. As one of the most important traditional practices of the Fulani people, when people get married, both the man and the woman are given the status of responsibility. The research is based on understanding how the process of this traditional practice works, through interviews with young people, since marriage has different meanings for people of different age groups. The Fulani’s nomadic people because they are cattle breeders and move around looking for suitable places for their herding activities, so these changes have given rise to subgroups. Therefore, they have managed to maintain their language and their way of performing traditional religious marriage ceremonies.
Os/as trabalhadores/as do Sistema Único de Assistência Social: um enfoque às terapeutas ocupacionais
(Universidade Federal de São Carlos, 2024-12-17)
Theodoro, Andréia Martini
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Oliveira, Marina Leandrini de
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https://lattes.cnpq.br/4017135326666314
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https://lattes.cnpq.br/1090424463523300
Since 2005, the Unified Social Assistance System (SUAS) has managed social assistance services, programs, and actions in a decentralized and participatory manner. Among the various professional categories, occupational therapy has had a historical presence in social assistance services; however, its formal recognition is recent, considering Resolution No. 17 of 2011 by the National Social Assistance Council. Thus, this study aimed to identify the professionals working within SUAS, specifically highlighting the characteristics of the professional inclusion and work of occupational therapists in different units. To achieve this, an exploratory, descriptive, and analytical study was conducted based on secondary data obtained from the official federal government database, the SUAS Census, covering the period from 2007 to 2022. The selected variables pertain to the following units: Social Assistance Reference Center (CRAS), Specialized Social Assistance Reference Center (CREAS), Specialized Reference Center for the Homeless Population (Centro Pop), Day Center, Community Center, and Shelter Unit. The data were collected, tabulated, and analyzed, covering: (1) professional categories comprising SUAS; (2) occupational therapists by sex, age group, unit, year, location (state and region), employment status, working hours, and function; (3) primary, secondary, and tertiary functions and activities of occupational therapists. An exploratory data analysis was conducted to synthesize values of the same nature, providing a global view of variations, which were described through tables, charts, and graphs. The results revealed that professionals without higher education represented the most prevalent category across different unit types. Additionally, professional categories not foreseen in legal documents were identified, as well as a significant presence of other professionals with higher education. Although in smaller numbers, professionals without higher education were found performing the role of higher-level technicians in all analyzed units. These findings indicate that, despite the guidelines established by the Basic Operational Standard – Human Resources/SUAS and Resolution No. 17/2011 for team composition in Social Assistance, some locations do not adhere to these recommendations. Regarding the professional inclusion of occupational therapists, a decrease in their number was observed, with lower representation in Day Centers and Centro Pop and greater representation in CRAS. Their role in essential services within social assistance units and their exercise of management functions are noteworthy. Based on these results, this study aims to contribute to the assessment of occupational therapists' participation in SUAS and to highlight professional inclusion trends to strengthen the profession, foster employment in the sector, and enhance the quality of assistance provided to Social Assistance Policy users.
Efeito do estabelecimento de relações simbólicas de coordenação sobre a emissão de respostas de ajuda
(Universidade Federal de São Carlos, 2024-12-17)
Gomes, Renata Cristina
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Rose, Julio Cesar Coelho de
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https://lattes.cnpq.br/3386857761295187
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https://orcid.org/0000-0001-9122-8948
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https://lattes.cnpq.br/2005277864643813
This study aimed to investigate how the presentation of a request for help influences the likelihood of people being willing to help. The study was conducted with two groups of participants, one experimental and one control, who were asked to report their recent problems and then were presented with a request for help. The experimental group was presented with additional statements that established a relationship of coordination between the current problem and the participants' own problems that they had just reported. The control group was only presented with a simple request for help. The results showed that the experimental group was more likely to respond to the request for help, with seven out of eight participants contacting the second experimenter and five of them actively participating in the research. In contrast, in the control group, only half of the participants made contact and three of them agreed to participate. The authors hypothesized that by comparing both situations when requesting help, the experimenter facilitated the establishment of symbolic relations of coordination between such situations, which apparently increased the probability that the request for help would evoke responses. The results suggest that the use of this strategy - comparing the experiences lived by the client with those experienced by others - can be expanded in psychotherapy and other contexts aimed at developing empathy and sensitivity towards others. However, the results need to be considered with caution due to methodological limitations.
Controle de temperatura no processamento do café solúvel: reduzindo a formação de acrilamida
(Universidade Federal de São Carlos, 2024-12-17)
Salazar, Guilherme Maruski
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Neves, Isabelle Cristina Oliveira
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https://lattes.cnpq.br/3479449098249392
The formation of acrylamide during food processing is a highly relevant topic for food safety, especially in coffee, one of the most consumed beverages worldwide and of great importance to the Brazilian economy. This compound is primarily formed during roasting through the Maillard reaction and has been associated with potential health risks, such as carcinogenic and neurotoxic properties. Thus, the central theme of this study was to analyze the factors related to the formation of acrylamide during coffee processing stages, such as roasting and drying, as well as to evaluate technological strategies to minimize its occurrence without compromising the sensory characteristics of the beverage. This study aims to contribute to the production of safe, high-quality coffee, meeting global market demands and consumer expectations. To achieve this, a methodology based on a literature review of scientific articles, documentary analysis of food safety standards, and evaluation of acrylamide control methods in coffee was used, with an emphasis on identifying gaps and proposing improvements in industrial processes. The literature shows that strict temperature control, especially during the roasting and drying stages, is essential to reduce the formation of acrylamide, a carcinogenic compound. Strategies such as more intense roasting have proven effective in mitigating this substance without compromising the sensory characteristics of the beverage. However, significant gaps were identified, such as the lack of studies on variations in drying temperatures, on the storage conditions of the beans, and the impacts of different types of coffee on acrylamide formation. Thus, it is concluded that the lack of research on new technologies to control this compound at all stages of the process indicates the need for further investigation. Moreover, the creation of clear regulations in Brazil, aligned with international standards, is also essential to ensure the safety and quality of coffee, meeting global requirements.
Fenótipos de dor no ombro de origem musculoesquelética: classificação e confiabilidade
(Universidade Federal de São Carlos, 2024-12-17)
Ribeiro, Gabriel Gaspar
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Chaves, Thaís Cristina
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https://lattes.cnpq.br/6332531515878207
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https://orcid.org/0000-0002-6222-4961
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Haik, Melina Nevoeiro
Shoulder pain is one of the musculoskeletal complaints with the highest incidence and treatment cost. Despite strong recommendations for conservative treatment, chronicity and recurrence of symptoms are frequent. When understood as a multidimensional and biopsychosocial phenomenon, shoulder pain condition reveals differently in clinical settings among people with similar complaints. These clinical differences might be related with predominant shoulder pain phenotype. Thus, identifying the predominant nociceptive, neuropathic or nociplastic shoulder pain phenotype can contribute to more accurate diagnoses and clinical decisions. Objective: This study aimed to classify the predominant pain phenotype in individuals with shoulder pain (ShoulderPhe) and identify the inter-rater reliability of the classification system for clinical use. Methods: The study included 108 individuals aged 18 to 60 years-old with primary musculoskeletal shoulder pain. The evaluation followed a comprehensive procedure based on the 7 steps of the 2021 International Association for the Study of Pain (IASP) classification system. Anamnesis and physical examination collected sociodemographic information, medical history, clinical data of the shoulder complaint, general health status, and sensory tests. Two raters independently classified the predominant shoulder pain phenotype for each individual using the IASP classification system adapted to shoulder pain. Agreement of each stage and for the final phenotype was analyzed using weighted kappa and prevalence-adjusted bias-adjusted kappa (PABAK) coefficients. Results: 76,6% of the participants were classified with nociceptive phenotype, 9,4% with neuropathic, and 14,0% with nociplastic. Inter-rater agreement was considered acceptable (PABAK > 0.4) for stages 1, 2, 4, 5, 6, 7, and the final phenotype, while stage 3 showed complete agreement (kappa = 1). Conclusion: The ShoulderPhe system was proved as a feasible tool for clinical use in individuals with shoulder pain with acceptable reliability. However, challenges remain in accurately identifying shoulder pain phenotypes, which indicates a need to refine the standardization of diagnostic criteria.
Processamento sensorial, qualidade de vida e fatores associados ao transtorno do desenvolvimento da coordenação em escolares
(Universidade Federal de São Carlos, 2024-12-17)
Weber, Meyene Duque
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Cavalcante Neto, Jorge Lopes
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https://lattes.cnpq.br/4175589263683027
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https://orcid.org/0000-0002-8396-2410
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Tudella, Eloisa
Introduction: Developmental Coordination Disorder (DCD) is characterized by significant motor performance difficulties. Mechanisms that may contribute to the etiology of DCD include alterations in sensory processing. Additionally, the presence of risk factors, whether biological or environmental origin, may exacerbate motor difficulties during childhood. Beyond the primary motor problems associated with DCD, secondary issues frequently arise, particularly socioemotional and psychological consequences such as a reduced health-related quality of life (HRQoL). Objective: To assess sensory processing and quality of life in children with Developmental Coordination Disorder, as well as potential contextual factors associated with children with and without DCD. Methodology: This is a case-control study conducted in schools within a small city in the state of São Paulo, Brazil. Participants included children of both sexes, aged between 6 and 11 years, along with their parents/guardians. The children were divided into three groups according to the diagnostic criteria of the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5 TR): the DCD group (case group one) consisted of children who met all four diagnostic criteria; the probable DCD group (case group two) included children who met two diagnostic criteria; and the typical development group (control group) consisted of children with motor performance appropriate for their age and no established diagnoses. The children were assessed using the following instruments: the Movement Assessment Battery for Children – 2nd edition, the DCD Questionnaire, the Sociodemographic Questionnaire, the Short Sensory Profile 2, and the Pediatric Quality of Life Inventory version 4.0. All statistical tests were performed using SPSS, with a significance level of 5% (α = 0.05). Results: This research yielded three main studies: Study I, entitled "Sensory processing in children with Developmental Coordination Disorder, probable DCD, and typical development: a case-control study," found significant differences among the groups in all four sensory processing patterns, with a higher frequency of sensory registration patterns in the DCD group. Furthermore, the sensory registration pattern emerged as a predictor of motor outcomes. Study II, titled "Health-related quality of life in children with Developmental Coordination Disorder: a systematic review," showed that children identified with DCD had poorer HRQoL compared to their typically developing peers. Study III, titled "Health-related quality of life in children with Developmental Coordination Disorder, probable DCD, and typical development: what is the relationship with environmental and biological factors?" revealed significant differences in HRQoL scores among the groups, with children with DCD showing the lowest scores. Biological and environmental risk factors, such as prematurity and low socioeconomic status, were detrimental to HRQoL when interacting with the groups. Conclusion: The findings contribute to the growing body of evidence regarding children with DCD and probable DCD, providing novel insights into how the studied variables behave across the three groups. Specifically, children with DCD exhibit poorer outcomes in sensory processing and HRQoL. Moreover, children with DCD, when associated with risk factors, experience a further decline in HRQoL. These findings offer valuable information to healthcare and education professionals, enabling them to act as key agents in knowledge translation for families and individuals affected by DCD.
Macunaíma e a direção de arte de Anísio Medeiros
(Universidade Federal de São Carlos, 2024-12-17)
Hukai, Roberto Eiti
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Araújo, Luciana Sá Leitão Corrêa de
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https://lattes.cnpq.br/9890886509956837
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https://orcid.org/0009-0007-0782-8803
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https://lattes.cnpq.br/4147203871208553
This research analyzes the film Macunaíma (Joaquim Pedro de Andrade, 1969) through the lens of Anísio Medeiros’s production design, examining how it may complement existing analyses by Ismail Xavier, Randal Johnson, and Heloísa Buarque de Hollanda. Beginning from Medeiros’s established background as a visual artist, costume designer, and theater set designer, the study focuses on his early contributions to cinema, particularly Capitu (Paulo César Saraceni, 1968) and Macunaíma. Through film analysis, archival research, and interviews, it investigates how production design may contribute to creating multiple layers of meaning. The methodology also includes mapping professional networks and constructing a chronology of Medeiros’s work in Brazilian cinema. This research consolidates information about Medeiros’s cinematic oeuvre and fosters dialogue between art direction and other audiovisual fields, at a time when art direction studies are gaining academic prominence in Brazil.
Aditivos alimentares: impactos na saúde humana e o desafio da indústria alimentícia frente ao movimento clean label
(Universidade Federal de São Carlos, 2024-12-17)
Bazana, Natália Diniz
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Silva, Sérgio Henrique
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https://lattes.cnpq.br/1289075743981826
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Neves, Isabelle Cristina Oliveira
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https://lattes.cnpq.br/3479449098249392
Food additives are widely used by the industry to extend product shelf life, enhance sensory characteristics, and ensure food safety. Among the main additives used in food are preservatives, colorants, antioxidants, and acidity regulators, which play essential roles in preserving product quality. However, the prolonged use of artificial additives has been associated with health risks, such as allergic reactions, toxicity, and carcinogenic effects, especially when consumed in quantities exceeding recommended limits. Thus, the objective of this study was to conduct a literature review addressing the importance of food additives, focusing on preservatives and the impacts of their prolonged consumption, as well as the clean label trend aimed at reducing their use in foods. The bibliographic review, based on studies on the subject from the last five years and current regulations, reveals that the food industry has increasingly sought natural and safe alternatives without compromising preservative effectiveness due to the relationship of these compounds with product shelf life. Furthermore, the clean label trend, which aims to reduce the use of artificial additives and replace them with natural ingredients, also promotes greater transparency in labeling, enabling consumers to make more informed choices. Although natural alternatives offer health and sustainability benefits, they face challenges such as lower efficacy and higher costs. In conclusion, due to the significant growth potential of the natural and safe food market, additional studies are needed to evaluate the benefits of these alternatives, develop new formulations, and improve production processes.
Em prol do respeito linguístico: elaboração de sequência didática sobre "para eu/mim + infinitivo"
(Universidade Federal de São Carlos, 2024-12-17)
Carvalho, Larissa Peres Vitti de
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Biazolli, Caroline Carnielli
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https://lattes.cnpq.br/7908630593356660
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https://orcid.org/0000-0002-8578-8102
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https://lattes.cnpq.br/7856248966040597
The main objective of this dissertation was to develop a didactic sequence for high school students, focusing on a specific variable phenomenon: the pronoun eu/mim + infinitive in sentences beginning with the preposition para. The use of para mim + infinitive, often stigmatized by different social groups, was discussed based on a bibliographical survey that reveals the linguistic prejudice associated with it. The proposal included the application of a questionnaire to validate observations and guide the development of the didactic sequence, promoting practices of linguistic respect (Scherre, 2021) in the classroom. This research was based on the assumptions of Variationist Sociolinguistics (Weinreich; Labov; Herzog, 2006 [1968]; Labov, 2008 [1972]), delving deeper into discussions about linguistic variation in the educational context (Bortoni-Ricardo, 2004; Vieira, 2018). To approach the para eu/mim + infinitive, we started from studies by Figueiredo (2007), Novais (2018), Santos and Paim (2018), Gomes (2019), Brandão, Biazolli and Sene (2020) and Vaz (2020). The development of the didactic sequence took into account the ideas of Dolz, Noverraz and Schneuwly (2004) and Vieira (2018). The results obtained from the questionnaire reinforced the stigma attached to the para mim + infinitive variant among the students, as well as highlighting their lack of knowledge regarding concepts such as variation, prejudice, and linguistic respect. Therefore, the didactic sequence developed was designed to address these gaps, with the aim of contributing activities that encourage students to think about language use in a more respectful manner.
Democracia e instituições informais nos partidos políticos brasilieros
(Universidade Federal de São Carlos, 2024-12-17)
Souza, Fabiana Cristina dos Santos de
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Alves, Vinícius da Silva
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https://lattes.cnpq.br/5280134976334285
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Ribeiro, Pedro José Floriano
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https://lattes.cnpq.br/6336151484882362
The thesis aims to comparatively analyze Brazilian political parties regarding their organizational structure, aiming to understand internal democracy based on two axes: inclusivity and formality in the selection of candidates and party leaders. The research intends to address two gaps in the study of party organization in Brazil. Firstly, it seeks to comparatively assess the degree to which party statutes reflect the reality of internal party life, thereby identifying the actual dynamics of Brazilian party functioning. Secondly, it aims to understand how internal democracy is associated with the level of informality within party organizations, highlighting deficiencies in analyses that focus solely on the formal characteristics of these organizations. The guiding question of the thesis is: Do more formal internal processes encourage parties to be more democratic? To answer this question, the proposed research will utilize the first national survey conducted with party members. Subsequently, building on the results of the initial survey, the research aims to investigate how internal democracy correlates with varying degrees of informality, using a binomial logistic regression model. Finally, the thesis proposes a typology to classify the analyzed parties into: 1) Formal Inclusive, 2) Informal Inclusive, 3) Formal Hegemonic, and 4) Informal Hegemonic categories. Additionally, we included a specific analysis of women’s perceptions within the parties, exploring how they evaluate selection processes and opportunities for party participation. This focus allowed us to identify gender nuances that reveal how informal practices and structural barriers impact inclusion and internal democracy, contributing to a broader understanding of the organizational dynamics of political parties in Brazil.
Efeitos dos agentes eletrofísicos no tratamento da dor, função respiratória pós-mastopexia com implantes e no processo de cicatrização de úlceras venosas
(Universidade Federal de São Carlos, 2024-12-17)
Pacheco, Esteban Ignacio Fortuny
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Liebano, Richard Eloin
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https://lattes.cnpq.br/1397951221512127
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https://orcid.org/0000-0003-4795-6723
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https://lattes.cnpq.br/4522034660327820
The use of electrophysical agents in postoperative treatment and tissue healing are key pillars of the work of physiotherapists dedicated to tissue repair. In countries outside Brazil, there is great concern to have a greater scientific basis for their use and to justify their application in chronic pathologies as well as in acute problems. The inclusion of some resources to optimize the healing of chronic wounds (venous ulcers) and to reduce postoperative pain are topics of great interest to patients, clinicians and their family support network. Our research group designed two studies to address these topics of great relevance for physical therapy and that represent a major impact on public health and patient recovery.