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Reflexões sobre o ensino de botânica: desafios, dificuldades, importância e estratégias metodológicas
(Universidade Federal de São Carlos, 2023-09-06) Esteves, Luana; Nascimento, Fabrício do; Souto, Letícia Silva; https://lattes.cnpq.br/9284280370140756; https://orcid.org/0000-0002-9881-1308
This work is characterized as a bibliographic study on the teaching of botany in the Brazilian context. Searches were carried out on the Google Scholar and Scielo platforms, using the descriptors ‘’Botany teaching’’, ‘’history of botany teaching’’, ‘’botany teaching and environmental education’’, ‘’botanical blindness’’. The academic production inherent in the last 45 years regarding the teaching-learning of botany in basic education was considered. The aim is to present an overview of botany teaching and the needs to overcome problems related to it. The authors whose works were analyzed indicate the existence of recurring didactic and methodological problems and difficulties related to learning this area of knowledge, especially due to the fact that it is taught in an essentially descriptive way and distant from the students' reality. Historical problems related to this area are highlighted, such as the low value given to learning botany in schools and teacher training courses, the botanical blindness that prevails in society, the training needs presented by basic education teachers and little performance significant impact on the part of these professionals in relation to the students’ training needs. However, many authors present promising perspectives based on studies that analyzed the educational possibilities of teaching botany to basic education students. There is a recurring need to offer teachers more consistent training, with a view to contributing to the formation of citizens who can, through the appropriation of knowledge about botany, make more elaborate readings of the Brazilian environmental reality and develop a conservationist vision .
Aspectos históricos e matemáticos da resolução de equações de 3o., 4o. e 5o. graus
(Universidade Federal de São Carlos, 2023-09-06) Calcia, Igor Perussi; Sampaio, João Carlos Vieira; https://lattes.cnpq.br/8286887389013685; https://orcid.org/0000-0002-0318-6790; https://lattes.cnpq.br/2833093212918885; https://orcid.org/0009-0000-0276-6585
During the years from 1530 to 1576, there were great mathematical advances in Europe, one of the greatest being the great duel of the resolution of the cubic equations, fought between Niccolò Tartaglia and Gerolamo Cardano, which brought Cardano renown and Tartaglia disgrace. The then formula for solving the cubic equations, like its history, is part of a long duel, in which there is a great friendship and a turning point of a publication that had been promised to remain secret. Even though Tartaglia and Cardano solved only 3rd degree equations, Ferrari developed a method for solving 4th degree equations, and with the help of derivatives we can solve almost all polynomial equations up to 5th degree.
Revisão da literatura sobre o Transtorno do Défict de Atenção e Hiperatividade nas revistas nacionais do campo da Terapia Ocupacional
(Universidade Federal de São Carlos, 2023-09-06) Castro, João Vitor Arnosti de; Martinez, Claudia Maria Simões; https://lattes.cnpq.br/1371315095038350; https://lattes.cnpq.br/4155902892719800
The presence of Attention Deficit Hyperactivity Disorder – ADHD, causes difficulties in people's personal and interpersonal lives. As it is a problem that has consequences for behavior, low self-esteem, among other areas, it has received attention from researchers from different fields of knowledge, one of them being Occupational Therapy. The present research aims to identify and describe studies on the topic related to Attention Deficit Hyperactivity Disorder – ADHD present in national journals in the field of occupational therapy. To this end, an integrative literature review was carried out in 4 national journals specific to Occupational Therapy: Revista de Terapia Ocupacional da USP, Cadernos Brasileiros de Terapia Ocupacional, Revista Interinstitucional Brasileira de Terapia Ocupacional and Revista Baiana de Terapia Ocupacional. The data collection stages related to the development of this research were: (1) identification of the theme in the title of each article in the magazine; (2) application of inclusion and exclusion criteria in study abstracts from the aforementioned journals; (3) selection and reading of studies in full accompanied by the extraction of information of interest to the research; (4) interpretation of results and finally, (5) writing of review data. The results were analyzed using quantitative and qualitative approaches. After applying the inclusion criteria, three articles were selected. The period in which the topic in a more comprehensive way is present in national Occupational Therapy journals is between 1992 and 2020, however with the specific term ADHD it is between 2012-2018. The intervention strategies in Occupational Therapy identified by Occupational Therapists demonstrated the importance of knowing and considering aspects of play, the environments of children with ADHD, and their preferences in intervention processes. Finally, the data showed the relationship between ADHD symptoms and the level of assistance required by the child. It is hoped that this study can contribute to the development of new research in the field of ADHD and Occupational Therapy.
Detecção e identificação de doenças em folhas utilizando redes neurais
(Universidade Federal de São Carlos, 2023-09-06) Carmo, Cassio Cioni; França, Celso Aparecido de; https://lattes.cnpq.br/4547836128892982; https://orcid.org/0000-0003-2235-9551; https://lattes.cnpq.br/7818585399610905
In this study, an approach using neural networks for the detection and classification of diseases in soybean leaves based on images was explored. The main objective of the research was to develop a model capable of analyzing soybean leaf images, identifying different disease classes, and determining the overall health of the plants. The significance of this work lies in its application to precision agriculture, aiming for more effective monitoring and care of crops. The methodology employed included the extraction of features from leaf textures, using techniques such as Histogram of Oriented Gradients (HOG) for identifying textural patterns and edges, as well as obtaining color histograms in the HSV (Hue, Saturation, and Brightness) and RGB (Red, Green, and Blue) components of the images.The results obtained demonstrated promising performance of the proposed model in classifying different disease classes and determining the health of soybean plants. An accuracy rate of 87.54% in classification was achieved, indicating a solid rate of correct classification, even in the face of the complexity of the classes and variability in the images. In summary, this research offers valuable insights for disease detection in soybean plants through neural networks. The results underscore the feasibility and relevance of this approach for precision agriculture and crop health monitoring.The analysis of the confusion matrix reveals valuable information about areas that can be improved, especially in classes with lower representation, emphasizing the importance of future optimizations. This encompasses increasing data collection and expanding the training image dataset, as well as making more detailed adjustments to the hyperparameters of the neural networks. In the future, the exploration of convolutional neural networks and the enrichment of the database have the potential to further contribute to the accuracy and effectiveness of the model, driving significant advancements in disease detection and classification in plants.
Ensino para alunos com dislexia: o que conhecemos e o que ainda precisamos saber sobre este campo?
(Universidade Federal de São Carlos, 2023-09-06) Barbosa, Alessandra Maria Garcia; Lopes, Nataly Carvalho; https://lattes.cnpq.br/0285391776145231; https://lattes.cnpq.br/8576413933801868
Students are constantly labeled as uninterested and/or unmotivated when in fact they are not diagnosed correctly and the fact that they have dyslexia goes unnoticed, dyslexia is often seen as a difficulty in reading and/or writing when in fact it is much deeper and must be understood as a whole, the difficulty also extends to other areas of teaching, such as mathematics, physics, chemistry, among others. This work focuses on a real statement from the author and, based on bibliographical research, analyzes theses, articles and magazines that include teaching and assessment tools for a dyslexic student, as well as helping with initial identification. A teacher must be able to teach any student within the classroom regardless of their difficulties and limitations, but as we cannot say how their training occurred and what their knowledge is on the subject, the aim of this work is to be a tool that can help all educators when it comes to dyslexia.
Teste de um Programa de Intervenção para Aumento do Equilíbrio Trabalho-Vida Pessoal: um estudo de aceitabilidade
(Universidade Federal de São Carlos, 2023-09-06) Guiducci, Luiza Perches; Santos, Gabriela Trombeta; https://lattes.cnpq.br/5875147172625110; https://orcid.org/0000-0001-5485-1239; Barham, Elizabeth Joan; https://lattes.cnpq.br/9868595523538592; https://orcid.org/0000-0002-7270-4918; https://lattes.cnpq.br/4525885014616094; https://orcid.org/0000-0003-2367-2777
Difficulties in reconciling the demands of work and personal life can harm people’s perceptions of well-being and increase psychological stress. Although it is common for Brazilian workers to face these difficulties, there are few programs aimed at helping them to improve the balance between these areas of their lives. To address this problem, a program focused on training cognitive and emotional regulation skills was developed, based on previous programs reported in the literature, as a way to help people improve the balance between work and personal life. However, this program needs to be evaluated. In the present study, the objective was to evaluate the acceptability of the program when offered in an in-person format. In this format, the program consists of five modules, each lasting approximately two hours. Thirteen people between the ages of 24 and 57, including 5 men and 8 women, all with paid employment and moderate to high levels of work-life balance difficulties, completed the pre-test. After each session, participants completed a questionnaire to assess the acceptability of the activities proposed in each module, in order to identify possible areas for improvement. Quantitative data were examined using descriptive statistical analyses. Content analysis procedures were used to examine responses to open-ended questions, to identify positive comments, difficulties, and suggestions regarding the program. Some of the key findings were a retention rate of 92.8% (one person started but did not complete the program) and an attendance rate of 97.4% at the weekly sessions, indicating good acceptance of the program. Based on responses to the acceptability questionnaire, participants indicated very little difficulty in understanding the terms used and ease in understanding the language used in the program. In response to the open-ended questions, a few participants reported some difficulties, such as the speed of the training activities. The main limitations of the study involve the composition of the participant sample: they had high levels of education, and most had previous experience with psychotherapy, which could contribute to greater ease in understanding the program. Considering the overall results, the main recommendation for improving the program for the app format is to increase participants' control over the pace of training activities, before proceeding to a study of the effects of the program.
Viagem ao mundo das águas: criação de cartilha como apoio para visita em estação de tratamento de água
(Universidade Federal de São Carlos, 2023-09-06) Rodrigues, Lenita Gomes de Oliveira; Milaré, Tathiane; https://lattes.cnpq.br/4030661520659155; https://orcid.org/0000-0001-6557-1769; https://lattes.cnpq.br/9917764514031809; https://orcid.org/0009-0005-1372-8935
The objective of this work is to explore the knowledge of the water cycle in nature, its importance and the basics of sanitation through teaching about ecology and society as an educational process. The aim is to help students gain a better understanding of nature, water, and the environment in which they live, contributing to the formation of responsible citizens. This work argues that an eco-educated community is one in which people organize around issues related to quality of life and the environment and that it is the responsibility of governments to provide solutions to ensure access to water, health, and dignity for all. The creation of a free, accessible, and assertive e-book is proposed that teachers can use to educate students about the water cycle, its use, and the ecological aspects of society's responsibility for the environment. The material is justified by the need to contextualize the relationship between ecology, education and society and to provide teachers with a resource that they can use to support environmental education.
Comparative histological and anatomical biomarkers of the spleen and kidneys in amphibians: a special focus on Rhinella icterica
(Universidade Federal de São Carlos, 2023-09-06) Soares, Elisabete Teixeira Tsukada; Jones-Costa, Mônica; https://lattes.cnpq.br/0578970203313985; https://orcid.org/0000-0001-9424-947X; Salla-Jacob, Raquel Fernanda; https://lattes.cnpq.br/1738422158151824; https://orcid.org/0000-0003-3275-0001; https://lattes.cnpq.br/6660167944080388; https://orcid.org/0000-0001-8129-1660
Amphibians belong to a diverse group of ectothermic vertebrates. These animals exhibit a wide range of anatomical and physiological adaptations that allow them to thrive in various aquatic and terrestrial habitats. The spleen and kidneys are two essential organs within the amphibian body. These organs received considerable attention due to their functional significance. The spleen is a component of the lymphatic system, and it is involved in immune responses, hematopoiesis, and erythrocyte turnover. The kidneys, on the other hand, are crucial for maintaining water and electrolyte balance, as well as excretion of metabolic waste products. Understanding the histological and anatomical characteristics of these organs in amphibians is fundamental for gaining insights into their functional capabilities and evolutionary adaptations. The aim of this masters dissertation was to perform two detailed bibliographic reviews, one of them focusing on the spleen, and the other focusing on the kidneys, in amphibians. These reviews will provide a comprehensive synthesis of the existing literature, analyzing the histological and anatomical variations observed across different species, as well as identifying the potential use of these organs as relevant sources of biomarkers for environmental monitoring studies. Here we also present the first detailed description of the histomorphology of the spleen and kidneys in a neotropical anuran species, known as Rhinella icterica. By examining this species in detail, we aim to contribute to the understanding of its physiological and histo-morphological adaptations, and their potential uses in environmental health. Ultimately, this research will contribute to the existing knowledge base on amphibian anatomy and histology, particularly regarding the spleen and kidneys. Our study may have implications for the understanding of amphibian health, disease susceptibility, and conservation efforts. Furthermore, the detailed characterization of the histomorphology of Rhinella icterica will serve as a reference for future comparative studies and may shed light on potential correlations between morphology and function.
O neoliberalismo de terceira via e o empresariamento da Educação: apontamentos sobre a relação entre Itaú Social e o IEA/USP
(Universidade Federal de São Carlos, 2023-09-06) Hanna, Luiza Kouri; Coutinho, Luciana Cristina Salvatti; https://lattes.cnpq.br/2688318704089723; https://orcid.org/0000-0002-8682-0952
The present study is the result of explanatory and qualitative research, with a bibliographic and documentary view, which has aimed to analyze the third-way neoliberalism and the private administration of Brazilian public education, shedding light on the relation between Itaú Social and the Instituto de Estudos Avançados da USP (Advanced Studies Institute/ IEA– University of São Paulo), as a mean to exemplify the discussion nowadays. Therefore, a bibliographical review of the critical authors in the debate in question was made, as well as a documentary analysis of the Cadernos MARE, the Plano Diretor da Reforma do Aparelho do Estado (PDRAE), and the production of Cátedra Alfredo Bosi da Educação Básica (a partnership between Itaú Social and IEA/USP). The result shows that Brazilian private management was, and still is, successful in its entrepreneurship in formulating public education policies and teacher training, through the process of professionalization of education workers, who previously had their image built as an obstacle to the Reform and afterward as agents of the new hegemonic pedagogy.
Software para análise de dados experimentais de uma técnica de medida baseada em ressonadores Fabry-Pérot
(Universidade Federal de São Carlos, 2023-09-06) Amaral, Douglas Ramos do; Ghiglieno, Filippo; https://lattes.cnpq.br/1686238672912517; https://lattes.cnpq.br/2422781678465194
This study presentas a software to analize data form a straightforward and non-destructive interferometric technique for measuring the propagation loss in single-mode optical glass waveguides by exploiting a Fabry–Perot cavity effect. The software is useful for understanding the contribution from unwanted effects due to extra-cavities.
Avaliação de deformidades morfológicas em larvas de Thalassomya (Diptera, Chironomidae, Telmatogetoninae) da costa nordeste brasileira
(Universidade Federal de São Carlos, 2023-09-06) Costa, Elaine Cristina Ribeiro da; Fusari, Lívia Maria; https://lattes.cnpq.br/4951378712238107
In August 2019, the beaches of the northeastern coast suffered from an oil spill. This event became the largest oil spill ever recorded in the South Atlantic in terms of extent. Oil slicks were recorded in approximately 1004 locations, distributed across 130 municipalities in the northeastern states, Espírito Santos and Rio de Janeiro. Upon reaching the coastal region of Brazil, the oil contaminated several environments, such as mangroves, beaches, reefs and estuaries present on approximately 3,000 km of the coast that was impacted by this material. Marine ecosystems were directly affected, such as intertidal rocky outcrops, rhodoliths, sandy beaches, estuarine systems, seaweed and coral reefs. Mortality of fish, birds, marine mammals, sea turtles, reptiles was recorded and possibly extended to invertebrates. Among aquatic invertebrates, the Chironomidae family (Diptera) is recognized as a bioindicator of environmental quality, in addition to being widely distributed and abundant, certain peculiarities of chironomids favor their use in assessing environmental impacts, when compared to other organisms. In Chironomidae we can observe different types of deformities resulting from different types of contamination, these deformities are usually observed in the head capsule, where the mouthparts, antennae and epipharyngeal comb are inserted. Within this scenario, the objective of this study was to evaluate the impact on Thalassomya gutae populations through morphological parameters in five populations affected by the crude oil spill. As well as, verify whether the presence of oil can cause morphological anomalies of larvae in different populations. 15% of some degree of deformity was recorded in the populations collected in 2020, 11% of the larvae collected in 2021 showed deformity, and in the populations collected in 2016, only two larvae showed mental malformation. Considering the 2016 data as a reference, we can say that the crude oil spill that occurred at the collection points affected the Chironomidae populations. We believe that the populations are presenting teratogenic anomalies, which arise due to changes in cellular development and their malfunction during the larval life cycle. We conclude that the species T. gutae is a good bioindicator of environmental quality when the larvae are analyzed. Considering the adaptations made in this project to the chin deformity protocol developed by CETESB used for continental environments, it can be applied to coastal environments as well
Educação financeira nas escolas: uma nova fase na vida financeira a partir de escolhas conscientes
(Universidade Federal de São Carlos, 2023-09-06) Lima, Rogério de Souza; Mereu, Ana Cristina de Oliveira; https://lattes.cnpq.br/4361743248742740; https://lattes.cnpq.br/3954951688807142
The present study aims to portray the results of a research conducted on the importance of Financial Education in Basic Education according to the normative guidelines of the National Common Curricular Base (BNCC). Financial Education has the particularity of being an intrinsic subject to the lives of all individuals, deserving a prominent place when integrated into Basic Education. This enables the formation of future citizens who are consumers, producers of goods and services, and conscious of their social responsibility and contribution to the sustainable development of our planet. The study recalls a period when the country experienced a major economic crisis and financial instability due to hyperinflation. This event generated mistrust and uncertainty as daily salaries were losing their purchasing power. Subsequently, a theoretical foundation was sought to provide an understanding of the origin of money, given its importance in meeting material needs, ensuring economic stability, and being used wisely, thus underpinning our study. Knowledge of Financial Mathematics is also necessary for conducting analyses and simulations that facilitate certain choices and decision-making. The BNCC establishes the rules governing the New High School and includes Financial Education in its proposal as a cross-cutting theme that is interconnected with other subjects. The study on conscious consumption was conducted to demonstrate the outcome of sound Financial Education, which directly contributes to sustainability and social and economic equilibrium. Finally, a qualitative and exploratory research was carried out involving high school students, with the active participation of 30 students. Data was collected through the administration of a questionnaire containing questions related to Financial Education. The analysis and interpretation of the data are described in this work.
No interior da medida: punição e relações raciais no sistema socioeducativo na cidade de São Carlos
(Universidade Federal de São Carlos, 2023-09-06) Mattos, Kênia Rodrigues; Sinhoretto, Jacqueline; https://lattes.cnpq.br/7743699562476490; https://orcid.org/0000-0002-8718-779X; https://lattes.cnpq.br/8390564818236663; https://orcid.org/0000-0003-0738-0715
This dissertation investigated how ethnic-racial relations are evident in the implementation of socio-educational measures applied in an open environment (assisted liberty and provision of services to the community) and closed environments (hospitalization) in the municipality of São Carlos. The methodology chosen for the investigation was mixed, being of a qualitative nature, with analysis of the guiding and official documents on the theme of the centers implementing socio-educational measures and interviews (in-depth with a semi structured script), carried out with employees of the socio-educational system. The quantitative methodology refers to the analysis of sociodemographic data from the municipality's juvenile justice system. The aim, therefore, was to observe the differences in execution and compliance with measures in the two institutions that carry out measures in an open and closed environment (Salesianos and Fundação Casa). In the qualitative research findings, the hypothesis that differences exist was confirmed, with indications that in the closed environment, where subjection is more present, racial issues are less demanded, at the same time, in both institutions the pedagogical commitment to the ethnic-racial relations is not mobilized by the teams. In quantitative data, racial disparities were observed in the juvenile justice system. The results presented here may contribute to themes explored in areas of Sociology such as violence, deprivation of liberty, juvenile justice and race relations
Curadoria algorítmica nas plataformas de streaming e os efeitos adversos dos sistemas de recomendação
(Universidade Federal de São Carlos, 2023-09-06) Lima, Lucas Peixoto de; Sá Neto, Arthur Autran Franco de; https://lattes.cnpq.br/5055550097454248; https://lattes.cnpq.br/9182966590820045
This research, within the scope of studies in Science, Technology and Society, has as its theme the relationship between the cultural industry, artificial intelligence and cultural diversity, in which it studies if, and how, the recommendation systems of the streaming platforms Globoplay and Netflix act towards the creation of social bubbles due to the personalization, made through the consumption of audiovisual materials. It is justified in the sense of exploring the effects caused by intelligent algorithms, whether intentional or not, which go unnoticed by the public and can influence their ways of thinking and seeing the world. The objective, therefore, is to understand the performance of recommendation systems on audiovisual streaming platforms. The hypothesis raised is that the intelligent algorithms of recommendation systems contribute to the formation of social bubbles, in order to reaffirm users' social, cultural and political convictions. The research is divided into four fundamental stages: the description of the research objects, the survey of Latin American titles present on the platforms, the analysis of the home screen of these platforms and the discussion about algorithms and society. The characteristic of a recommendation system, based on AI and big data, of learning from the user and indicating content that matches their profile, gives evidence that the hypothesis may be true, as the user's profile, films and series that relate to this profile can be more recommended to him. However, the opacity of streaming platforms does not allow us to reach an affirmative conclusion. One solution suggested for the problems raised here focuses on transparency, allowing users to access their profile records and adjust what is recommended, and also on the regulation of platforms by the State.
Transformações tecnológicas no trabalho de jornalistas 60+ do Estado de São Paulo: um estudo na perspectiva CTS
(Universidade Federal de São Carlos, 2023-09-06) Savenhago, Igor José Siquieri; Pedro, Wilson José Alves; https://lattes.cnpq.br/8135701448186851; https://orcid.org/0000-0002-9540-7078; https://lattes.cnpq.br/9377340948989879; https://orcid.org/0000-0002-7758-1195
The arrival of the internet in journalistic newsrooms in the 1990s marked changes in production routines, influencing working conditions. A process that required special attention from elderly professionals, given the need for rapid adaptations to mastering technological artifacts, and which was intensified with the Covid-19 pandemic, which forced many of them to telework. Under a multi and interdisciplinary approach, which brings together thoughts from Social Psychology, Sociology, Anthropology, Philosophy, History, Gerontology, Education, Communication, among other fields of Human Sciences, this study observes 60+ resident journalists as journalists and/or who work in the intermediate geographic regions of Ribeirão Preto and São Paulo, in the state of São Paulo, Brazil, build shared visions about these technological transformations and how such representations indicate behaviors related to the exercise of the profession, work relations and the aging process itself. The research was developed in the Postgraduate Program in Science, Technology and Society (PGPSTS) at the Universidade Federal de São Carlos (UFSCar), in the line of research in Social Dimensions of Science and Technology, from a social constructivism perspective. – which finds relevance in Social Studies in Science and Technology (SSST), in which the STS movement is inserted –, and in the light of the Theory of Social Representations (TRS). After a bibliographical review, with a survey of the state of the art of scientific knowledge on technological transformations for the work of journalists, with a focus on older people –, in addition to documentary research, on open public data platforms –, the approach, which is part of the assumptions of social, qualitative research, of an exploratory-descriptive nature, proposes, considering the ethical guidelines for research in Human Sciences, to analyze, with the help of the free software Iramuteq, synchronous individual online reflective interviews carried out with 13 professional journalists 60+ from the aforementioned regions. The sessions, recorded and transcribed, and validated by the participants, made it possible to outline an understanding, via Content Analysis (CA), about the construction and circulation of social representations relating to the mentioned aspects. As a result, it was possible to perceive that the transformations in Journalism based on digital technologies leave professional journalists in a vulnerable condition, which demands a protection network that helps them resolve a process of instabilities and uncertainties.
Educação Infantil: apontamentos da prática de uma auxiliar na creche
(Universidade Federal de São Carlos, 2023-09-06) Rosa, Tatiane Tomazini Soares; Santos, Maria Walburga dos; https://lattes.cnpq.br/2954227254025696; https://orcid.org/0000-0002-9304-5800; https://lattes.cnpq.br/5545606080912511; https://orcid.org/0009-0005-0481-8592
This work is a reflection of the daily work of an education assistant from questions about the division of labor in early childhood education. The objective was to analyze the role of the early childhood education assistant working in the daycare center, its most diverse nomenclatures, work structures and other factors that lead to its precariousness and devaluation. A survey of the historical context of Brazilian early childhood education and especially of the emergence of early childhood education in the city of Sorocaba, SP, was elaborated. We made a historical and legislative survey about the creation of the position of the auxiliary sorocabana. And from this and the theory of the professor-researcher based on Lawrence Stenhouse, a reflection was made from the reality of the daily life experienced on the organization of work and the academic training of the assistant.
Long and short por cointegração aplicado ao mercado acionário brasileiro
(Universidade Federal de São Carlos, 2023-09-06) Cardoso, Clézio Lopes; Moura, Maria Sílvia de Assis; https://lattes.cnpq.br/9410151859448447; https://lattes.cnpq.br/0436741036875132
In this article, we conduct a detailed analysis of the long and short investment strategy with cointegration in the Brazilian stock market. We explore the correlation between pairs of stocks and propose a trading approach that capitalizes on temporary deviations from this relationship. The strategy involves buying the undervalued stock and selling the overvalued one. Through the application of advanced statistical techniques and empirical analysis, we demonstrate that this approach can generate significant risk-adjusted returns. The article discusses the implications of these results for investors and offers valuable insights to enhance investment strategies. This study contributes to financial literature by presenting a new perspective on the application of cointegration in the long and short strategy.
Memória e Identidade em Los Rojos de Ultramar, de Jordi Soler
(Universidade Federal de São Carlos, 2023-09-06) Agostinho, Maria Eugênia Morasco; Infante, Joyce Rodrigues Ferraz; https://lattes.cnpq.br/7590751343091510; https://lattes.cnpq.br/4866613498767476
El objetivo de este trabajo es analizar como operan los conceptos de memoria e identidad en Los Rojos de Ultramar (2004), novela autoficcional del escritor mexicano Jordi Soler, a partir de la profundización de reflexiones acerca de la transmisión y del rescate de la memoria histórica y familiar, así como de los reflejos e impactos del exilio en la construcción identitaria de las generaciones posteriores. A partir de estudios sobre la pertenencia (o no- pertenencia) del exiliado (SAID, 2006), las posibles y complejas identidades adquiridas y/o reformuladas en el espacio de exilio (CASTELLS, 2018), y también sobre la memoria y el olvido (JELÍN, 2002), este trabajo explorará, junto al narrador de la novela, la profunda e irregular biografía de Arcadi, un ex-combatiente republicano exiliado en México. En el intento de reconstruir el camino recorrido por este hombre, su nieto, el narrador de la novela, acaba por meterse en una búsqueda por la construcción de su propia identidad como sujeto portador de dos culturas y de dos lenguas. La construcción de la narrativa de Soler se apoya en las memorias individuales y colectivas de su abuelo y de sus familiares – insertados en el contexto histórico de una España marcada por la Guerra Civil (1936-1939) y por el período del posguerra – pero también en sus propios recuerdos. De esta forma, la obra escrita se constituye como un archivo que engloba la memoria y la identidad de toda la familia de Arcadi.
Distúrbios ventilatórios obstrutivo e restritivo aumentam o risco de incidência de dinapenia em pessoas com mais de 50 anos de idade?
(Universidade Federal de São Carlos, 2023-09-06) Souza, Thales Batista de; Máximo, Roberta de Oliveira; https://lattes.cnpq.br/5377549816607170; Alexandre, Tiago da Silva; https://lattes.cnpq.br/5393622641681701; https://orcid.org/0000-0003-3791-9793; https://lattes.cnpq.br/8503875930814465; https://orcid.org/0000-0003-3534-1174
The decline in lung function and neuromuscular strength (dynapenia) occurs during aging. Cross-sectional studies have demonstrated an association between the reduction in forced expiratory volume in one second (FEV1) and forced vital capacity (FVC) with a decrease in neuromuscular strength. However, no longitudinal study has been carried out to date. Objective: To analyze whether obstructive or restrictive ventilation disorders are risk factors for the incidence of dynapenia. Methods: Longitudinal study involving 4,975 participants from the English Longitudinal Study of Aging (ELSA) aged 50 or over, without dynapenia at baseline, and followed for eight years. Lung function was assessed by spirometry (predicted percentage) and participants were classified as: without ventilatory disorder (FEV1 ≥ 80%, FVC ≥ 80% and FEV1/FVC ratio ≥ 70%), with obstructive ventilatory disorder (FEV1 < 80% and FEV1/FVC < 70% with normal FVC or < 80%) or with restrictive ventilation disorder (FVC < 80% and FEV1/FVC > 70% with normal FEV1 or < 80%). The incidence of dynapenia was defined by handgrip strength < 26 kg for men and < 16 kg for women during the eight years of follow-up. Poisson regression models were adjusted for sociodemographic, behavioral, and clinical characteristics. Results: The incidence density of dynapenia was 14.2/1000 person-years (95% CI 12.6 – 15.9) in those without ventilatory disorders, 25.1/1000 person-years (95% CI 21.2 – 29.7) in those with restrictive ventilation disorder and 36.6/1000 people/year (95% CI 23.8 – 56.1) in those with obstructive ventilation disorder. Having an obstructive ventilation disorder increased the risk of developing dynapenia by 62% (IRR: 1.62; 95% CI 1.09 – 2.41). Already having a restrictive ventilation disorder increased the risk by 37% (IRR: 1.37; 95% CI 1.13 – 1.64). Conclusion: Obstructive and restrictive ventilation disorders are risk factors for the higher incidence of dynapenia in people over 50 years of age. These results highlight the importance of monitoring lung function to preserve neuromuscular strength and respiratory health as you age.
Classificação de descontinuidades em vias asfaltadas usando redes neurais treinadas a partir de modelos físicos da dinâmica vertical de veículos
(Universidade Federal de São Carlos, 2023-09-06) Ferreira, Henrique Aron; Shiki, Sidney Bruce; https://lattes.cnpq.br/0573973677787523; https://lattes.cnpq.br/0377701252924258
With the growth of cities, there has been a noticeable increase in the amount of time people spend within transportation means on paved roads. Consequently, various ergonomic-related issues arise. In this context, this undergraduate thesis proposes the development of a methodology for training artificial neural networks to classify discontinuities in asphalt roads, using physical mod- els of vehicle vertical dynamics and acceleration signals measured by mobile devices. Initially, a discrete full-car physical model with 7 degrees of freedom was developed in a computational environment, aiming to represent the vertical vehicle dynamics. From this model, estimates of the vehicle’s vertical acceleration were obtained, simulating a smartphone placed on the car’s dashboard. Subsequently, a classification algorithm based on artificial neural networks was imple- mented, aiming to analyze the vehicle’s vibration signals and identify different discontinuities in roads, such as speed bumps, potholes, and normal roads. The classification algorithm was tested with simulated data, considering various discontinuities and vehicle speed conditions, and it was parameterized to allow for changes in the model’s speed. Finally, the neural network was trained and validated, demonstrating the effectiveness of the proposed methodology in creating systems capable of identifying discontinuities in asphalt roads. This contribution aids in improving road quality and, consequently, the safety and comfort of users.