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Elaboração de manual de boas práticas de fabricação (BPF) e procedimento operacional padrão (POP) para empresa de gelados comestíveis: estudo de caso
(Universidade Federal de São Carlos, 2024-09-17)
Barros, Maria Carolina Rodrigues
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Kato Junior, Edison Tutomu
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https://lattes.cnpq.br/2870505840656417
The production of edible ice cream has ancient origins. There are records of Chinese people 3,000 years ago using a mixture of snow and fruit juices, a practice that would be a precursor to the production of ice cream. The present work aimed to carry out a diagnosis, based on a case study in an edible ice cream company, and the creation of manuals through the analysis of the operation of the establishment located in the city of Itapeva, in the interior of São Paulo, which produces and sells ice, ice cream and popsicles. From the field work, it was possible to describe its structural characteristics, its functioning, production, as well as what was or was not in compliance with what prescribes the ordinance of the National Health Surveillance Agency (ANVISA) nº 326/97 and the Resolution of the Collegiate Board of ANVISA nº 275/02, combined with the study of these documents. As a result, manuals were created based on the ordinances and resolution, but with special attention to the needs of the company and the industrialized and commercialized products.
A relação dos jogos de papeis sociais e a diferenciação de gênero na educação infantil
(Universidade Federal de São Carlos, 2024-09-17)
Silva, Emily Ferreira
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Coutinho, Luciana Cristina Salvatti
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https://lattes.cnpq.br/2688318704089723
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https://orcid.org/0000-0002-8682-0952
This work is the result of a bibliographic research of an exploratory nature on role-playing games and gender differentiation in early childhood education. For data collection, works were selected from the Google Scholar platform. The productions were analyzed to present historical elements regarding the research process in the area, covering the history of early childhood education in Brazil, the concept of gender, and how this intersection is addressed in early education. The findings show that the in-depth texts available on Google Scholar display equity, appearing to convey the same concepts. However, there is a significant gap in relation to proposals that can effectively translate theory into practice. This lack of concrete strategies contributes to the perpetuation of gender inequalities, highlighting the need for a more comprehensive and applied approach to confront and transform these issues in educational practice.
Aplicação de perfis de estrada na simulação de suspensões veiculares: uma abordagem baseada na ISO 8608
(Universidade Federal de São Carlos, 2024-09-17)
Marques, Gabriel Alves
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Moreno, Mariano Eduardo
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https://lattes.cnpq.br/1307496862518321
Given the need of the Dinamo E-Racing team for a tool to assist in the development and simulation of the suspension system, this work aims to develop a program capable of providing simulation software with inputs related to road surface irregularities. To achieve this goal, MATLAB was used to model a 1/4 car system and generate random road profiles based on ISO 8608, the standard for road surface roughness classification. Additionally, the Power Spectral Density (PSD) was calculated to provide a detailed analysis of the vehicle’s vibrational characteristics as it traverses different types of pavement This work presents the development and analysis of a simulation model to study the dynamic behavior of a vehicle using a quarter-car model, in accordance with ISO 8608, which classifies pavement roughness. The adopted methodology includes the parameterization of different road profiles, generated to represent realistic driving conditions, such as those encountered in Formula SAE competitions. The proposed model allows for the analysis of the dynamic response of the suspension system, focusing on the unsprung mass (wheel). Using MATLAB, algorithms were developed for generating random road profiles and simulating the response of the quarter-car model. The simulations confirmed that the generated profiles comply with the characteristics specified for roughness class B of the ISO 8608 standard. The Power Spectral Density (PSD) analysis helped identify critical frequencies that could cause undesirable resonances, guiding adjustments in the suspension system to enhance vehicle performance and safety under competitive conditions. The results demonstrated that the suspension system is effective in attenuating high-frequency vibrations. Comparative analysis between different road profiles of the same class indicated consistency in vibrational responses, suggesting that the conclusions of this study can be generalized to other similar driving conditions. Finally, the study proposes future validation of the models through experimental tests with the prototype under real competition conditions and the application of PSD data in more advanced simulations to further optimize the suspension system design.
Manim como ferramenta didática para potencializar o ensino de cálculo
(Universidade Federal de São Carlos, 2024-09-17)
Fiori, Kallel Vinicius Rocha
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Piton-Gonçalves, Jean
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https://lattes.cnpq.br/6280496667549925
Visualization in Mathematics is an area of research that studies visual elements in computational tools, such as graphs, diagrams and geometric representations to communicate certain mathematical content that can assist in Teaching. In the computational context, Manim is a Python library designed for creating high-quality graphical animations and mathematical objects. With the aim of exploring the use of Manim considering aspects of Mathematical Visualization in Teaching contexts, this Course Completion Work (i) reviewed the literature on Computer Visualization from the perspective of Diehl (2005), (ii) compared aspects of Mathematical Visualization between Manim and Geogebra and (iii) developed teaching material that can assist the teacher in Teaching Differential Calculus. Results show that Manim stood out as an effective tool in the educational context, with a high level of granularity and reuse capacity, being adaptable to different perspectives and educational needs.
Estudo da deformação de perovskitas de haleto com organometálicos através do cálculo do número de coordenação do sítio B
(Universidade Federal de São Carlos, 2024-09-17)
Traldi, Vitor Aparecido
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Lima, Matheus Paes
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https://lattes.cnpq.br/1835846543912999
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https://orcid.org/0000-0001-5389-7649
The growth in energy demand, combined with the environmental impact caused by fossil fuel sources, has triggered great interest and research in alternative clean and renewable sources, particularly solar energy. In this context, the development of solar energy conversion devices seeks new materials to compose photovoltaic cells, among which perovskites have gained attention due to their diversity, low production cost, and superior optoelectronic properties, allowing for high energy conversion efficiency. The optoelectronic properties of perovskites are closely related to structural distortions, and being able to explore these distortions allows for a deeper understanding of these materials. Due to the peculiar structure of perovskites, which have the chemical formula ABX3, an ideal cubic system without distortions presents coordination 6 at the B-site, which is used as a reference value. Based on this, this work explores the coordination at the B-site as a way to quantify the structural deformations of perovskites. Specifically, three different methods for calculating the Coordination Number (CN) were implemented, namely CN, ECN, and ECNav, and their results were compared for a set of Halide Perovskites with Organometallics available in a public domain database. The results showed that CN is entirely dependent and sensitive to the cutoff factor p, making it unsuitable for comparing different systems, as there is no way to define this factor univocally. In contrast, ECN and ECNav provide close and compatible results. However, the ECNav method has a slight tendency to yield results closer to the ideal value (6). On the other hand, ECN results in a more homogeneous distribution. These differences are justified by the specific algebraic formulation of each implementation. Indeed, ECNav proved to be a superior method as it is free from external parameters, meaning it is not limited to the number of neighbors considered, and defines the average distance through a self-consistent calculation, unlike ECN, which is restricted to the first six neighbors.
Uma abordagem baseada em passeios aleatórios para identificar o melhor piloto de Fórmula 1 da história
(Universidade Federal de São Carlos, 2024-09-17)
Romanelli, Ricardo Teixeira
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Ferreira, Ricardo Felipe
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https://lattes.cnpq.br/2355076087945221
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https://orcid.org/0000-0001-5555-0526
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https://lattes.cnpq.br/3362920408525722
In the world of motorsports, when we are interested in identifying the best driver, we generally only consider those who have raced in Formula 1, the pinnacle of the global four-wheeled sport. However, the definition of what it means to be the best driver is subjective, as it can involve different factors, whether technical or emotional. In this work, we propose to evaluate the performance of Formula 1 drivers through an exact and objective approach. To do this, the similarity of the performance of two drivers is measured based on metrics that take into account variables that evaluate both the driver's talent and the quality of their cars. From these similarity measures, we will build a directed graph with weights, where each vertex represents a driver and each edge is weighted by a function of the similarity measure between the vertices that defines it. Finally, we will find the stationary distribution over this graph, and the best Formula 1 driver is the one with the highest distribution. Based on this decision rule, we also obtain a ranking of driver performance.
Seleção de genótipos de limão
(Universidade Federal de São Carlos, 2024-09-17)
Martires, Augusto Malaguti Braghini Marcolini
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Bastianel, Marinês
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https://lattes.cnpq.br/2523177587459092
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Conceição, Patrícia Marluci da
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https://lattes.cnpq.br/6623193710607120
For the advancement of the citrus sector and the improvement of producers' profits in the national territory, the search for new varieties of citrus in the current Brazilian scenario is deeply essential. Several varieties of lemons (Citrus limon (L.) Burm) can be commercialized, either for fresh consumption and for industrial processing, depending on the agronomic characterization of each variety. The objective of this work was to evaluate fruits and plants present in the BAG (Active Citrus Germplasm Bank) that is present in Sylvio Moreira Citriculture Center/IAC, seeking to identify new genotypes with commercialization potential. The work was conducted at the “Sylvio Moreira” Citriculture Center/IAC (CCSM/IAC), whose institution maintains the largest and most important citrus collection in the world at BAG. Among the accessions available at BAG, in 2019, eight lemon varieties were selected (Kutdiken SRA 530, Fino SRA 344, Asaasli SRA 632, Kerkachi IAC 694, Karystine SRA 623, Malti SRA 636, Lapithou SRA 541 and Menton SRA 625). Two seedlings were made from these varieties, grafted onto Rangpur lime, which were planted in an experimental field orchard. In 2022, physical-chemical analyzes of the fruits were carried out (juice yield, total soluble solids, total titratable acidity and proportion), number of seeds per fruit and vegetative development of the plants (height, diameter and crown volume). Juice yield showed no difference between the evaluated genotypes. The juice from the Kerkachi IAC 694 genotype showed lower total titratable acidity, a higher number of soluble solids and a higher proportion compared to the other genotypes. Regarding the number of seeds per fruit, the Kutdiken SRA 530 genotype presented the lowest number of seeds per fruit when compared to other genotypes. All trained genotypes were vigorous, this can be seen from the height, diameter and crown volume of the plants of all genotypes, which have values equal to or greater than 3.1 meters, 3.3 meters and 19.76 meters, respectively, at the end of the third year of planting, revealing robust and healthy development. All evaluated genotypes are options available for the fresh fruit market. The quantity of genotype seeds is within acceptable parameters, highlighting the adaptability of these materials to market demands and highlighting their potential to meet expected quality standards.
Ensino de botânica: sequência didática sobre estruturas secretoras das plantas
(Universidade Federal de São Carlos, 2024-09-17)
Malheiros, Thainá Lopes
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Trad, Rafaela Jorge
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https://lattes.cnpq.br/7597890755708425
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https://orcid.org/0000-0003-2047-2948
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Souto, Letícia Silva
The relationship with plants has undergone several changes throughout human history, in addition to many challenges related to the teaching of botany, considering the entire educational context our country faces. Traditional education has proven to be an aggravating factor in the lack of engagement and interest of students in botany content, which is fragmented and undervalued in school curricula. There are alternatives to changing this reality, some of which are associated with pedagogical trends that, together with didactic sequences and active methodologies, can help improve the teaching-learning process for students, as well as contribute to the fight against botanical imperception. In this work, a didactic sequence proposal was developed from the perspective of Historical-Critical Pedagogy on the theme of "secretory structures," with the goal of assisting science and biology teachers in producing didactic materials to improve the teaching of botany.
Ser menino nas brincadeiras da escola: a influência da masculinidade normativa na socialização dos meninos no Ensino Fundamental
(Universidade Federal de São Carlos, 2024-09-17)
Portella, Rafael Fernandes
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Lombardi, Lucia Maria Salgado dos Santos
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https://lattes.cnpq.br/5697508831302188
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https://orcid.org/0000-0001-6978-864X
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https://lattes.cnpq.br/4676875902152813
This Undergraduate thesis aims to analyze how children in a Elementary school construct and manifest their masculinities and the influence of gender stereotypes on their behavior and interpersonal relationships. It discusses the existence of a hegemonic masculinity, which is the standard of agency to be followed by boys and men, and divergent masculinities, marked by affiliation with the female gender and which occupy subordinate positions in the hierarchy of gender relations. With a qualitative approach and bibliographical character, this research also presents autobiographical records that relate to the studied theme, in addition to field observations that sought to answer the problem-question that motivates the thesis: what is it to be a boy and in what ways do children in a Elementary school manifest their masculinities?
Percepção ambiental e desafios do lixo urbano: um estudo sobre a percepção do lixo urbano em áreas de Sorocaba
(Universidade Federal de São Carlos, 2024-09-17)
Lafon, Anderson Roberto
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Martines, Marcos Roberto
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https://lattes.cnpq.br/5317839291904450
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https://orcid.org/0000-0002-7464-2431
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https://lattes.cnpq.br/5620129996196177
The research aimed to assess the environmental perception of residents living near the Matadouro Stream in response to the urban waste issue in the city of Sorocaba, SP. Through a literature review and data collection, analytical units related to the Matadouro Stream were defined, and census sectors were adopted to establish a sample population divided into three study areas, designated as Area A, B, and C. This process led to the development and application of a questionnaire to evaluate individuals' perceptions of the urban waste problem. To analyze the data obtained from the questionnaires, descriptive statistical analysis methods were initially applied to selected variables to provide an overview of this population. Subsequently, Factor Analysis was used to identify Latent Factors based on responses from individual interviews. Then, the Multiple Correspondence Analysis method was applied to develop profiles of the respondents. Finally, the ANOVA test was conducted to determine whether the population's perception in the three areas was statistically different due to the identified Latent Factors. The main finding of this research is the conclusion that there is a statistically significant difference in the environmental perception of urban waste among residents of different areas along the Matadouro Stream. The applied research method revealed that residents of Area A perceive waste merely as something dirty and useless, whereas residents of Areas B and C see the same waste as useful, valuable, and even a source of income. From the perspective of geographical and social disparities, Areas B and C, which are more peripheral and socially disadvantaged compared to Area A, demonstrate a greater tendency to view waste as a resource. This indicates a correlation between socioeconomic status and waste perceptio
Levantamento de casos de coevolução biológica no Brasil
(Universidade Federal de São Carlos, 2024-09-17)
São José, Isadora Cardoso
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Martins, Valéria Forni
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https://lattes.cnpq.br/0686674300788674
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https://lattes.cnpq.br/3456045707490675
Coevolution is the evolutionary process in which two or more species exert mutual evolutionary pressure. This phenomenon has aroused the curiosity of scientists for centuries. Despite continuous discussion on the definition, when, and how coevolution occurs, some studies do provide some evidence of coevolution. The goal of this study was to survey biological coevolution cases in Brazil. Specifically, we detailed the interspecific interactions, the taxonomic groups, the locations, and whether there is commercial interest in the coevolution cases found. For this, we searched for scientific papers in the platform Periódicos CAPES. We found 11 papers, of which eight addressed parasitism, three mutualism, and one herbivory. Our results show that coevolution is understudied in Brazil, which can impair biodiversity conservation. We suggest a deeper investigation of coevolution, aiming for species conservation, education, and even economic benefits.
Poder residual do tratamento de sementes de milho com neonicotinoides para controle de Dalbulus maidis (Delong & Wolcott)
(Universidade Federal de São Carlos, 2024-09-17)
Biazotti, Leonardo Garcia
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Marques, Rodrigo Neves
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https://lattes.cnpq.br/8945237946471247
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https://orcid.org/0000-0003-1003-3706
Corn crops are extremely important in Brazilian agriculture, with a large cultivation area facing challenges, one of which is pest control, such as the corn leafhopper (Dalbulus maidis), a vector of pathogens that can severely impact production. This study aimed to evaluate the residual efficacy of different insecticides applied as seed treatments for the control of D. maidis under greenhouse conditions. The experiments were conducted at the Pest Management Laboratory at UFSCar, using maize plants of the AL Bandeirante variety treated with neonicotinoids. The insecticidal active ingredients tested were clothianidin, thiamethoxam, and a ready-made mixture of thiamethoxam with lambda-cyhalothrin. The seeds were treated with the respective products, sown in pots, and later, plants at 5, 10, 15, 20, 25, and 30 days post-emergence were infested with adult leafhoppers to assess insect mortality over four days. The results indicated that clothianidin and thiamethoxam, both alone and in combination with lambda-cyhalothrin, were effective in controlling D. maidis during the first 15 days post-emergence, with a high insect mortality rate. However, after 20 days, there was a significant decrease in treatment efficacy, becoming almost null by 30 days. These findings highlight the need for additional interventions beyond seed treatment to control D. maidis in maize after 15 days post-sowing.
Um estudo sobre modelos Markovianos
(Universidade Federal de São Carlos, 2024-09-17)
Anjos, Vitor Schroeder dos
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Viola, Márcio Luis Lanfredi
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https://lattes.cnpq.br/7797241339089177
Markov chains have a range of applications within modeling, and due to their importance, are greatly studied in the literature. Herein, the objective of this paper is to study first-order Markov chains, presenting the principal concepts and properties related to them, with special attention given to their interpretation. In particular, we will define and explore several aspects associated with the stationary distribution.
Ecoturismo no Brasil e desenvolvimento sustentável: casos de sucesso e desafios
(Universidade Federal de São Carlos, 2024-09-18)
Simoes, Octavio Matheus Paniguel
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Santos, Jeronimo Alves dos
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https://lattes.cnpq.br/6360442111575366
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https://orcid.org/0000-0002-4793-4973
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https://lattes.cnpq.br/0405229126821899
This work investigates the relationship between sustainable development and ecotourism, highlighting how both promote sustainability through environmental conservation and the well-being of local communities. Focusing on the Brazilian context, the study aims to analyze successful cases of ecotourism in three regions: Bonito-MS, Brotas-SP, and Fernando de Noronha-PE, emphasizing their importance in protecting natural resources and promoting responsible practices that minimize negative impacts. Additionally, it seeks to identify the challenges facing the Brazilian ecotourism sector. Based on a literature review, the research identifies and discusses strategies that have proven effective in the success of ecotourism in these regions. Furthermore, the study addresses persistent challenges within the sector. The paper aims to contribute to the debate on sustainability in the tourism sector, offering valuable insights for academics, professionals, and policymakers interested in optimizing the benefits of ecotourism. Despite the progress made, this paper presents some gaps due to the fact that the topic is relatively recent and underexplored, with continuous development in the face of the vastness and diversity of ecotourism. Each location offers unique and innovative experiences that can be appreciated from various perspectives, providing unforgettable experiences and highlighting Brazil's great potential in the ecotourism landscape.
Avaliação do impacto ambiental na construção: comparação entre diferentes sistemas de alvenaria estrutural
(Universidade Federal de São Carlos, 2024-09-18)
Silva, Douglas Henrique da
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https://orcid.org/0000-0002-5939-2032
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Parsekian, Guilherme Aris
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https://lattes.cnpq.br/7798651726059215
The methodologies for analyzing the performance of materials have been increasingly utilized within the construction industry. Comparing construction methods in terms of the life cycle of their constituent materials is one way to conduct these analyses. This study aims to contribute to this topic by comparing three construction systems using the results of a Life Cycle Assessment (LCA) for a building project based on each system. After reviewing the literature, indicators of potential impact regarding CO2 emissions, energy consumption, and water consumption were gathered for each component and material constituting the three construction methods. Subsequently, the quantity of materials needed for the building construction was determined according to the project specifications. With the total impact map of each component, it was possible to evaluate the key materials concerning their contribution to the overall impact resulting from the building construction using one of the three methods. The method with the highest impact was the cast-in-place concrete wall in terms of CO2 emissions, while the concrete block wall had the highest embodied energy. The ceramic block system showed the lowest overall impacts; however, when comparing only the transportation impacts of each system, it exhibited the highest values. It was also possible to identify, within each method, the material and component with the greatest potential impact concerning the analyzed parameters, as well as which method had the lowest total potential impact across each parameter.
Desempenho de alface crespa cultivadas em sistema convencional e hidropônico
(Universidade Federal de São Carlos, 2024-09-18)
Mazaroski, Pedro Miguel
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Sala, Fernando César
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https://lattes.cnpq.br/6771975466075202
Lettuce is the main leafy vegetable in Brazil and worldwide. Its cultivation is mainly done using two planting systems: conventional and hydroponic. However, for most cultivars, there is no clear recommendation on which system is best suited for cultivation. Defining the behavior of these varieties in both cultivation systems can help provide better planting recommendations. The objective was to evaluate and compare the biometric characteristics of different varieties and lines of curly lettuce in a hydroponic system using the Nutrient Film Technique (NFT) and a conventional (field) system, aiming to identify the varieties and lines that adapt best to each system. The evaluation was carried out in a hydroponic system and a conventional system located at the Federal University of São Carlos (UFSCar), Araras. The evaluation was conducted 37 to 40 days after seedling transplantation. The varieties chosen for this experiment were based on lines produced by UFSCar’s genetic improvement program and commercial varieties that are market benchmarks. For the conventional system, the Crocantela, F10 206, and Vanda lines showed the highest fresh aerial mass values, which may be linked to the high plant height and diameter values, as well as earlier bolting compared to the others. In the hydroponic system, these three lines also obtained the top positions for fresh aerial mass, but with less disparity between them. Additionally, the Jade cultivar stood out with the fourth-largest fresh mass, very close to the third-place Vanda. This closeness in values was also observed in the other measured characteristics, due to the more homogeneous nature of the system. The conventional system showed greater variation in results among the lettuces, while the hydroponic system achieved more uniform values. Despite this, the Vanda, Jade, Crocantela, and F10 206 varieties had satisfactory values in both systems.
Secagem e processamento das cascas de maracujá: uma revisão
(Universidade Federal de São Carlos, 2024-09-18)
Silva, Mariana Andrade Alves da
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Furtado, Guilherme de Figueiredo
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https://lattes.cnpq.br/6217162662863550
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https://lattes.cnpq.br/3065180493284601
Nowadays, waste recovery is a much discussed topic in food industries, beeing the passion fruit known as a big waste generator raw material, futhermore, there are lots of diferentes options of destiantion for the generated waste on the passion fruit process. The passion fruit peel drying turned into flour is a well comented way of it’s destination, that way, the presente final course project presentes a literature review focused on the utilization of passion fruit peel on flour production, evaluating diferente drying methods and equipments, as well as their advantages and disadvantages. Others mentioned points are the drying kinetics theory, process mathematical modeling and the comparison of the results of diferentes studys for such production that encompass the passion fruit drying process using: tray dryers with recirculated air; freeze dryer; ultrasound assisted convective dryer and solar dryer. The usually discarted peel, exhibit a big source of nutrientes that justifies its destinations to flour production. The study identified that every method mentioned could have its application justified and presented advantages and disadvantages in differents aspects, turning the global project understanding a recomendable thing. Between the observed methods, the most recommended was tray dryers with air recirculation, as the flour produced was high quality and the costs, in addition to time, were appropriate for different types of processes, encompassing smaller budgets and maintaining the expected quality.
Uma introdução ao estudo das singularidades de aplicações diferenciáveis
(Universidade Federal de São Carlos, 2024-09-18)
Domingos, Paulo César de Pietro
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Barbosa, Grazielle Feliciani
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https://lattes.cnpq.br/5368292206467565
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https://lattes.cnpq.br/7342306212820491
The present work aims to develop the requirements for a study in singularity theory. To achieve this, it will address concepts of linear algebra, calculus, n-dimensional smooth manifolds, tangent space, germs of smooth mappings, transversality and sets of first-order singularities.
Resposta fisiológica de limas ácidas Tahiti enxertadas em porta-enxertos ananicantes sob diferentes manejos do solo
(Universidade Federal de São Carlos, 2024-09-18)
Padilha, Pedro Henrique Barrio
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Conceição, Patrícia Marluci da
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https://lattes.cnpq.br/6623193710607120
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https://lattes.cnpq.br/8116818166696403
Brazilian citriculture plays a significant role both economically and socially, and the introduction of new materials, such as scion and rootstock varieties, has enabled the industry to overcome numerous challenges, aiming for the implementation of more productive crops. This study aimed to evaluate the physiological response and development of Tahiti acid lime plants grafted onto dwarfing rootstocks subjected to conventional and ecological soil management. To achieve this, an experiment was established in 2020 with the objective of assessing different types of management and combinations of scion and rootstocks in the production of Tahiti acid lime. Prior to planting the citrus seedlings, Urochloa ruziziensis was sown in the interrows. The 12-month-old Tahiti acid lime seedlings were planted in seven rows, with a spacing of 6.0 x 2.5 meters. The trial was set up in a randomized block design, in a 2x3x2 factorial scheme, comprising: two types of soil management (1. conventional management using conventional m
Entendendo a desproporcionalidade de macroinvertebrados aquáticos em relações tamanho-densidade em riachos de Mata Atlântica
(Universidade Federal de São Carlos, 2024-09-18)
Braga, Julia Maria
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Mello, José Leonardo da Silva
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https://lattes.cnpq.br/4275067199408703
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Saito, Victor Satoru
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https://lattes.cnpq.br/3312862423985585
Metabolic Theory is one of the main theories used to understand trophic networks and energy flows in ecosystems. In general, a decrease in population density is expected as the individual body size of species increases, thus sustaining the flow of energy that should flow from smaller to larger organisms. In this study, we sought to understand the disproportionality in size-density relationships of macroinvertebrates observed in Atlantic Forest streams, potentially influenced by the functional singularities of the taxa. To this end, the positive residuals of the SDR (size-density relationship) were calculated and the functional characteristics of each species were compiled in order to find a relationship between greater population abundance and specific foraging strategies. Although the general trend showed a negative relationship between size and abundance, as expected, some taxa exhibited greater abundance than predicted for their average body masses. The analysis also indicated that functional singularity (rare functional strategies) is not associated with greater abundance. However, we identified specific combinations of functional traits associated with higher biomass in Trichoptera, such as anal claws, presence of a slime gland, fixed house builders and collector-filter feeding habits. These findings suggest that certain combinations of traits may favor the disproportionate abundance of some taxa.