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  1. Home
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Browsing by Issue Date, starting with "2024-08-20"

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    Avaliação dos critérios técnicos de qualidade das informações sobre dengue disponíveis na internet: um estudo infodemiologico
    (Universidade Federal de São Carlos, 2024-08-20)
    Silva, Enrieth Karoline dos Santos
    ;
    Westin, Ursula Marcondes
    ;
    https://lattes.cnpq.br/8889236417154349
    ;
    Zem-Mascarenhas, Silvia Helena
    ;
    https://lattes.cnpq.br/0185144417072417
    With the ease of access to information available on the Internet, the quality of such information can be questionable. Information is not always evidence-based, particularly in crisis situations like pandemics. Crisis situations can generate an overabundance of information, referred to as infodemia, where some information is accurate and true while others are not, making it difficult for people to find reliable sources and guidance when needed (Eysenbach, 2002). In this context, the present study aims to: Evaluate the quality of information available about Dengue on Brazilian URLs. Methodology: This is an exploratory, descriptive, cross-sectional infodemiological study with a quantitative approach that involves analyzing web pages based on CTQs (Critical Quality Indicators), conducted through dichotomous searches. Data were collected in February and analyzed in March and April 2024. Results: The first 200 URLs were selected and entered into an Excel spreadsheet. After excluding 8 URLs for various criteria, 192 pages were analyzed. Of these, 64 (33.33%) had identified authors, with only 18 (9.37%) being from relevant institutions. Only 21 (10.93%) provided complete author credentials, and many were not specialists in the field. Regarding the institutions responsible for the sites, 175 (91.14%) were identified, but none declared conflicts of interest. Most pages (134, or 69.79%) indicated the publication date, and 18 (9.37%) showed the update date. Only 48 (25%) included references and 21 (10.93%) had direct links to sources. Only one page indicated the level of clinical evidence, and 13 (6.77%) mentioned editorial review. All pages denied explicit sponsorship, raising concerns about potential undisclosed sponsors. Additionally, 119 (61.97%) pages had search tools and 110 (57.29%) provided contact information. 27 (14.06%) pages displayed content-related advertisements, and 33 (17.18%) promoted the sale of products, justifying the presence of ads as support for producing reliable content. Conclusion: The results indicate that although a significant portion of the websites reveals the responsible institution and publication date, there is a lack of transparency regarding authorship, credentials, and potential conflicts of interest. The low incidence of information about content updates, detailed references, and peer review points to the need to improve the quality and reliability of online information about dengue. The presence of advertisements and lack of transparency about sponsorships are also aspects that need to be addressed to ensure the integrity and impartiality of the content disseminated.
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    Análise de dados de estudos independentes: um estudo sobre metanálise
    (Universidade Federal de São Carlos, 2024-08-20)
    Michellim, Beatriz
    ;
    Ferreira Filho, Pedro
    ;
    https://lattes.cnpq.br/3166756210159019
    ;
    https://orcid.org/0000-0002-7756-7887
    ;
    https://lattes.cnpq.br/4891260134695165
    This paper presents the statistical technique of meta-analysis and its applications as a tool for synthesizing scientific evidence, with the goal of understanding its potential in the integration and analysis of results from independent studies. Through a comprehensive literature review, the main concepts, methods, and advantages of meta-analysis were identified. The results demonstrate the importance and relevance of meta-analysis as a powerful tool for obtaining more precise and reliable conclusions across various fields of knowledge. This research contributes to the understanding of the meta-analysis technique and its applicability in the synthesis of scientific evidence.
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    Torsion invariant on cellular complexes
    (Universidade Federal de São Carlos, 2024-08-20)
    Santos, Gustavo de Oliveira Cardoso dos
    ;
    Hartmann Junior, Luiz Roberto
    ;
    https://lattes.cnpq.br/4217613854338579
    ;
    https://orcid.org/0000-0003-4854-9193
    ;
    https://lattes.cnpq.br/8534993592760743
    Classifying spaces up to homeomorphism, homotopy equivalence, or combinatorial equivalence is one of the main problems in Topology. To achieve this, we have several invariants in Algebraic Topology, such as Euler characteristic, homotopy groups, homology groups and cohomology groups. In 1935, K. Reidemeister published a work on the classification of a certain class of 3-manifolds that have isomorphic homology groups and homotopy groups but are not homeomorphic. Some of them do not even have the same type of homotopy. For this classification, Reidemeister used a combinato- rial/topological invariant called torsion invariant. Based in [20], [18], [19] and [13], we will discuss here some versions of this invariant for CW-complexes, namely Whitehead torsion, Reidemeister torsion, and Reidemeister intersection torsion for pseudomanifolds with isolated singularities.
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    A educação no espaço rural em Piedade-SP e as vivências dos estudantes trabalhadores do campo
    (Universidade Federal de São Carlos, 2024-08-20)
    Oliveira, Isabella Pereira
    ;
    Mariano, Neusa de Fátima
    ;
    https://lattes.cnpq.br/5003743301847104
    ;
    https://orcid.org/0000-0002-3472-7158
    Education is a fundamental right that everyone deserves, or at least should have access to. In the diverse realities of Brazil, many teenagers must contribute to their family’s income from a young age. This economic necessity can lead to absenteeism, affecting both rural and urban populations. This study focuses on the rural context, where students often come from working-class backgrounds. The aim of this research is to explore the challenges and circumstances these students face during their educational journey. Through dialogue, this study seeks to gain a deeper understanding of their perspectives and experiences as rural residents
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    A filosofia na BNCC-EM: possibilidades, tensões e limites
    (Universidade Federal de São Carlos, 2024-08-20)
    Estrela, Tatyane
    ;
    Maamari, Adriana Mattar
    ;
    https://lattes.cnpq.br/5707827597161294
    ;
    https://lattes.cnpq.br/1945732510190872
    ;
    https://orcid.org/0000-0001-7441-8707
    This work analyzes the possibilities, limits, and tensions of the presence of philosophy in the BNCC-EM based on competencies and skills. After studying the BNCC-EM, in dialogue with recent literature on philosophy teaching and curriculum, a Pedagogical Guide for Teaching Philosophy was produced. This guide aims to assist philosophy teachers in constructing meaningful, interdisciplinary learning situations that mobilize specific knowledge of philosophy, whether articulated in the area of ​​Applied Human and Social Sciences (CHS) or in other curricular spaces such as the Life Project (PV).
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    Lean healthcare: proposição de uma ferramenta de gestão visual para gerenciamento de leitos hospitalares com base nos conceitos kanban
    (Universidade Federal de São Carlos, 2024-08-20)
    Deguirmendjian, Samira Candalaft
    ;
    Gabassa, Valeria Cristina
    ;
    https://lattes.cnpq.br/1340521331912418
    ;
    Zem-Mascarenhas, Silvia Helena
    ;
    https://lattes.cnpq.br/0185144417072417
    Bed management in hospital regulatory sectors is challenging and complex in health institutions. The use of electronic systems and the lean healthcare philosophy, focused on continuous process improvement and waste elimination in the health area, are relevant to facilitate processes, overcoming the difficulties of systematization and access to information. Among the lean tools is kanban, which is widely used in health for managing hospital beds, controlling stocks and organizing patient flows. However, there are no systematized and validated models for managing beds in hospitals internal regulatory sectors. A reference method is needed to improve the interaction between the care areas, health professionals and the internal regulatory sectors of a hospital, making planning, control and management of beds more efficient. In this context, the objective of this research was to propose a visual management framework based on the kanban concept for managing hospital beds. This is an applied, qualitative, technological development, observational and exploratory research. The study was conducted in a university hospital in the interior of São Paulo in three stages: 1) evaluation of the current tool for hospital bed management; 2) development of a prototype for hospital bed management; and 3) validation of the prototype. DMAIC (define; measure; analyse; improve; control) was used as a methodological framework for the development of the research. The prototype of the visual management framework developed is of medium fidelity and provides data for real-time visualization of: bed status, patient waiting times for beds, and decision-making tools for the care team and internal regulatory sectors. The prototype was presented and validated by professionals from the internal regulatory sectors. The results of the research are expected to facilitate the implementation of the proposed prototype and have a positive impact on the care provided to patients. In addition, the development of new projects to improve care processes, applying the principles and tools of the lean philosophy, is powerful for making health and hospitals more efficient. As a limitation, the difficulty of developing electronic/digital systems that depend on information from the system of the hospital of study.
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    Biocarvão de resíduos de laranja como meio filtrante para tratamento de efluente doméstico visando reúso agrícola
    (Universidade Federal de São Carlos, 2024-08-20)
    Cabrini, Mariana Paola
    ;
    Bastos, Reinaldo Gaspar
    ;
    https://lattes.cnpq.br/9329363278429665
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    Souza, Claudinei Fonseca
    ;
    https://lattes.cnpq.br/4858219292242433
    Brazil stands out as the world's largest producer of oranges, generating a significant volume of byproducts from the agro-industrial sector. In order to make use of these resources, the production of biochar from orange waste emerges as a promising alternative, especially for its use as a filtering medium in wastewater treatment systems. The objective of this study was to evaluate the impact of temperature on biochar production and to characterize the resulting material for application as an adsorbent in filtration systems for agricultural reuse. The pyrolysis process for biochar production was conducted at temperatures ranging from 350 to 650ºC for 60 minutes. The obtained material was analyzed for its chemical composition, crystalline structure, morphological changes resulting from the transformation of biomass into biochar, as well as the determination of surface area and average pore size. Pyrolysis tests indicated that the ideal temperature for biochar synthesis was 550ºC. The characterization results showed that the material has a high surface area and a significant increase in pore size, promising characteristics for its application as an adsorbent in filtration systems. In filtration tests with septic tank effluent, the system with orange biochar showed higher efficiency in the removal of macronutrients compared to the system with gravel. Notable removals were observed for total phosphorus (31.58%), magnesium (62.09%), and microbiological contaminants (62.09% – 76.14%). These results suggest that the treated effluent may be viable for use in certain crops, revealing a promising and sustainable alternative for wastewater treatment.
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    Analisando a eficácia de degradação do corante vermelho Congo pelo fungo Pyricularia oryzae
    (Universidade Federal de São Carlos, 2024-08-20)
    Peres, Laura Rodrigues Munhoz
    ;
    Montagnolli, Renato Nallin
    ;
    https://lattes.cnpq.br/7455124733755299
    ;
    https://lattes.cnpq.br/1969666124810317
    Azo dyes, predominantly used in textile industry processes, pose environmental risks and to the health of living beings due to their toxicity and persistence in the environment. Their complex synthetic structure makes them resistant to conventional waste mitigation methods, such as degradation, requiring special treatment in effluents and contaminated soils. This study proposed to analyze the biodegradation and biosorption of the Congo Red dye using the fungus Pyricularia oryzae, which is known as a phytopathogenic in agriculture as it causes blast disease in rice, oat, wheat and triticale crops. Analyzes were carried out using liquid and solid culture media to evaluate the potential for degradation of the dye by the fungus. To isolate the fungus in contact with the dye, PDA culture media was used with the addition of 10, 50 and 100 mg/L of Congo Red. The test tubes with liquid medium were kept in a shaker for 7 days at a temperature of 30°C at a speed of 150 rpm. The solid media were kept in incubation at a temperature of 30°C for 7 days. While visualizing halos indicative of dye degradation proved challenging in solid medium due to the rapid growth and intense pigmentation of the fungus, discernible halos were observed at a concentration of 10 mg/L. In both solid and liquid media, substantial decolorization was achieved at concentrations of 10 and 50 mg/L, with diminished activity observed at 100 mg/L, suggesting a better analysis of adsorption by the Langmuir and Freundlich isotherms, which the biosorption process applies better in the Langmuir model. Finally, the enzymatic activity analysis of the laccase enzyme was carried out with the purpose of verifying the potential of this enzyme. However, there was low dye degradation from the enzymatic activity, meaning that the performance from laccase was unable to oxidize Congo Red in the concentrations higher than 10 mg/L.
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    Individualismo e alteridade nos vínculos afetivos-sexuais sob o olhar de mulheres adultas
    (Universidade Federal de São Carlos, 2024-08-21)
    Figueredo, Beatriz Soledad Merino
    ;
    Risk, Eduardo Name
    ;
    https://lattes.cnpq.br/9006559297031800
    ;
    https://orcid.org/0000-0001-7290-2597
    ;
    https://lattes.cnpq.br/5768820082015943
    At the turn of the 21st century, Information and Communication Technologies (ICTs) emerged as a factor that profoundly influences contemporary sexuality, especially with the popularization of the internet and digital platforms. The aim of this study was to understand affective relationships initiated through digital platforms in order to analyze their trajectory and path. Eight women were interviewed, aged between 21 and 30, heterosexual or bisexual, who had been in stable relationships for two years or more and who met their partners through social networks. The remote interviews were conducted according to a semi-structured script, recorded and transcribed in full. The data was analyzed according to thematic analysis. The research protocol was approved by the Human Research Ethics Committee (CEP) of the Pro-Rectory of Research (ProPq) of the Federal University of São Carlos (UFSCar) (CAAE No. 68823423.0.0000.5504). The following categories were compiled: narcissism, sublime love and relationship history. The results reveal that the construction of affective-sexual relationships is based on the challenging balance between otherness (respect for the idiosyncrasies/singularity of the partner) and narcissism (the search for satisfaction of one's own rights/desires). Some couples remain stuck in narcissistic patterns, where partners seek to satisfy their own desires/needs, treating the other as a means to achieve them. However, couples whose bond is built on understanding each other's limits, recognizing and valuing differences seem to have better levels of affective-sexual satisfaction.
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    Quanto vale a educação básica? O mercado educacional no contexto da BNCC
    (Universidade Federal de São Carlos, 2024-08-21)
    Carvalho, Bia
    ;
    Ramos, Géssica Priscila
    ;
    https://lattes.cnpq.br/2573340489166336
    ;
    https://lattes.cnpq.br/0408042953976344
    This research focuses on the role of the educational market in developing and implementing the National Common Curricular Base (BNCC) (Brazil, 2017), adopting as reference the Kroton/Cogna group basic education branch, Somos Educação. The research analyzes the Kroton/Cogna group's strategic shifts regarding its role in basic education in the context of the BNCC approval. To do so, we conducted qualitative and quantitative research. The initial step was the bibliographic review with the CAPES Theses and Dissertations Bank and the Scielo platform as primary sources. We reviewed papers whose analysis overlapped with our research objectives and studies that, although not fully aligned with our focus, provided compelling insights into complementary areas such as the BNCC content and context and the current context of educational policies. We pursued archival research focused on reviewing the quarterly results releases the Kroton/Cogna group presented to its investors between 2015 and 2021. This research process allowed us to retrieve the history of New Public Management and observe the direct impact this management style had on education, both in terms of public policies through the BNCC and in the relationship with the private sector. The research presents the BNCC development process, drawing attention to the significant role private institutions played in it. The in-depth analysis of Kroton/Cogna's operations, including its history and products, demonstrates the company's extensive reach in basic education. The research could also demonstrate that the company's priority shift from higher to basic education occurred concomitantly with the BNCC approval process. Even though it is not possible to state categorically a causal relationship between these two phenomena, the research brings to light evidence that these shifts stemmed from a short-term interest – related to market expansion through the redevelopment of teaching materials and the content creation targeting standardized tests – and a long-term interest – directed at training the workforce training according to a specific worldview.
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    Uso de algoritmos de machine learning para auxiliar no diagnóstico de pacientes portadores de disfonia espasmódica
    (Universidade Federal de São Carlos, 2024-08-21)
    Souza, Felippe Favati de
    ;
    Barcellos, Robson
    ;
    https://lattes.cnpq.br/9844506370403162
    ;
    https://orcid.org/0000-0002-6009-4825
    ;
    https://lattes.cnpq.br/6243087328339802
    Spasmodic dysphonia (SD) is a rare voice disorder of neurological etiology that typically affects patients around the age of 30, impairing the process of vocal production and potentially being exacerbated by stressful situations. Given its neurological origin, diagnosis by speech-language pathology professionals is challenging and highly dependent on the evaluator’s expertise in recognizing the disorder. This may prevent patients from receiving optimal treatment, leading to the persistence of symptoms. With technological advances, the search for non-invasive methods for identifying voice disorders can be advantageous in supporting the diagnosis of SD. This study aims to evaluate the use of machine learning techniques to classify voice signals between patients with SD and healthy individuals.
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    Integração de abordagens sustentáveis de manejo das águas pluviais nas políticas públicas de desenvolvimento urbano
    (Universidade Federal de São Carlos, 2024-08-21)
    Pereira, Tássia Romanne Duarte da Silva
    ;
    Gonçalves, Luciana Márcia
    ;
    https://lattes.cnpq.br/9491069760631962
    ;
    https://orcid.org/0000-0002-8206-239X
    ;
    https://lattes.cnpq.br/8934601742488435
    In recent decades, a significant shift has been observed in urban stormwater drainage approaches, particularly in Brazil. This transformation breaks away from the hygienist paradigm and the classical model, which treated the rectification of watercourses and channeling as predominant solutions. New approaches prioritize sustainable management, focusing on resolving drainage issues directly at the source. In this context, Compensatory Techniques, Low Impact Development (LID), and Nature-based Solutions (NbS) stand out. The consolidation of these practices requires support from structured public policies, backed by legislation, projects, and technical standards.This study proposes a systematization of the key elements that enable the integration of sustainable stormwater management into urban development policies. The methodology includes a bibliometric review of terminologies related to the concept of sustainable management, document analysis of public policies, and the application of a structured questionnaire to managers, researchers, and professionals working in municipalities within the three largest Hydrographic Regions of the State of São Paulo. The results highlight four essential pillars for a paradigm shift in stormwater management: governance, community awareness, financing, and climate change. For each of these pillars, specific measures have been systematized that can be implemented through urban public policies, contributing to the development of more resilient and environmentally sustainable cities.
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    Atuação em política ou atuação profissional: revelações e contradições de um plano de carreira
    (Universidade Federal de São Carlos, 2024-08-21)
    Pereira, Gilda Alessandra da Trindade
    ;
    Tomazzetti, Cleonice Maria
    ;
    https://lattes.cnpq.br/4821077407620769
    ;
    https://orcid.org/0000-0002-1976-4604
    ;
    https://lattes.cnpq.br/4041305843165035
    Academic research frequently examines the actions of education professionals, mainly related to early childhood education, due to its public policy dimensions. In light of the creation of such public policies, this research addresses a key problem: how do the public policies of Araçatuba municipality impact the actions of professionals in early childhood education institutions? This question is aligned with the broader goal of analyzing the impacts caused by the elaboration of the Career Plan LC nº 288 (Araçatuba 2022) on professionals working in early childhood education institutions in the city. The research adopts a descriptive-exploratory approach, using the policy cycle analysis of Ball and Bowe (1994) and Mainardes (2006), as well as the Action Theory of Ball, Maguire, and Braun (2016). Furthermore, contributions from Rosemberg (2003, 2015, 2021) and Kramer (2006, 2007, 2013, 2015) were included, among other theorists. The study was conducted from a critical-reflexive perspective, adopting an ethical-onto-epistemological position (Mainardes, 2022), which acknowledges that studies on educational policies involve epistemological, ontological, and ethical considerations. This perspective proposes a unification between theoretical conceptions and ethical behavior, considering the coherence between being, knowing, and acting as a researcher. The methodological procedures involved bibliographic research and document analysis, which addressed historical processes and the consolidation of policies in the professional field of early childhood education in Brazil and the municipality where the research was conducted. Among the results, negative impacts were evident, related to professional devaluation, training policies, early childhood education objectives, and the incompatibility of the municipality's policies with national policies regarding basic education.
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    A passagem do primeiro ao segundo dualismo pulsional e o problema da constituição do Eu: um estudo sobre Freud
    (Universidade Federal de São Carlos, 2024-08-21)
    Salgado, Gustavo Campassi
    ;
    Soria, Ana Carolina Soliva
    ;
    https://lattes.cnpq.br/2903416522364971
    ;
    https://orcid.org/0000-0002-7762-3981
    ;
    https://lattes.cnpq.br/2663353245740321
    From the very beginning of the development of the Trieb as a psychoanalytic concept, there was a need within the theory to sustain a dualism in terms of the classification of drives. This dualism initially took place between the so-called sexual drives and the self-preservative drives. In its initial conception, the drive is understood as a stimulus (Reiz) which, coming from the body, its source (Quelle), will generate a urge (Drang), aimed at satisfaction (Befriedigung) through the annulment of the state of stimulation. The drive will then enter the psychic field through a representative (Repräsentant), in the form of affection (Affekt) and representation (Vorstellung). Conceiving this movement of drive circulation becomes more complex after 1920 if we take into account that, at this point in the construction of the psychoanalytic discourse, we have the introduction of a drive for which there is no representation in the psyche, in other words, without the element that configures the drive's entry into the psychic field: the death drive (Todestrieb). If we assume, with the Freudian text, that it is through the need for drive circulation that the psychic apparatus is formed, and that representation is a privileged moment in this circulation, the introduction of a drive whose characteristic is the absence of this element opens up a fruitful field of investigation. Bearing in mind that in the second drive dualism the ultimate goal of the drive is its total annulment as a state of stimulation and that the psychic instance called the "I" arises late and in close relation to the need for drive circulation and the establishment of a representational field in the psyche, this dissertation is an investigation into the constitution of the "I" in the light of the second moment of Freudian drive doctrine, starting initially with a preliminary investigation of the transition from the first to the second dualism.
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    Processos educativos nas práticas do brincar em uma casa de acolhimento
    (Universidade Federal de São Carlos, 2024-08-22)
    Portella, Camila de Carvalho Cordeiro
    ;
    Souza Júnior, Osmar Moreira de
    ;
    https://lattes.cnpq.br/9176123942671062
    ;
    https://orcid.org/0000-0002-2915-5634
    ;
    https://lattes.cnpq.br/1490848131543326
    In this master's research, we aimed to identify and understand the educative processes resulting from the social practice of children playing in a shelter in a city in the interior of São Paulo. This is a qualitative research, whose the data production was carried out based on participant observation, with mapping of routines and games, as well as holding a conversation circle, with records being made in a field diary. We held 21 meetings, which mainly included moments with children. For data analysis, we performed category coding. The results point to the analytical categories: playing to be more; oppressive relationships; affections shared, demanded, and denied; and role-play. Playing proved to be a social practice, from which various educative processes took place, such as collaboration, responsibility for household chores, dialogue, care for others, elaboration of conflicts, education of longing, acceptance, trust, affection, struggle for equality and rights, coexistence, amorousness, hope, respect, companionship and unity in diversity, proving to be a humanizing, liberating, dialogic activity that allows children to exercise themselves in being more, in being who they want to be, in going beyond dehumanizing situations and oppressors that marked their stories.
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    A relação família-escola na educação infantil: a centralidade do diálogo
    (Universidade Federal de São Carlos, 2024-08-22)
    Gonzalez, Camila de Fátima
    ;
    Silva, Alexandre Rodrigo Nishiwaki da
    ;
    https://lattes.cnpq.br/8697942957516547
    ;
    https://orcid.org/0000-0003-4431-0062
    ;
    https://lattes.cnpq.br/7283324913182975
    This study is the result of research that was conducted during a master's degree course associated with the Professional Postgraduate Program in Education (PPGPE) at the Federal University of São Carlos (UFSCar). The guiding question that outlined the work was: “What elements enhance the family-school relationship and what elements hinder it?”. Our objectives were to identify which elements are favorable and which are exclusionary in the family-school relationship, as well as to understand which dialogic actions are necessary to build a partnership between the two instances. To this end, the study was conducted in a Municipal Early Childhood Education Center located in a city in the interior of São Paulo, with both the children's families and the group of teachers who work in the unit as participants. To this aim, we first carried out a literature review focused on the topic. The research was conducted in two separate stages: first, we sent out virtual forms and then we held communicative discussion groups. Both instruments were applied both to the families of the children enrolled at the school and to the teachers. Data was collected and analyzed using the Communicative Methodology, which is in agreement with Dialogic Learning, the theory on which this study is based, since according to it, it is through interactions, intersubjectivity and dialogue that actions are created that favor learning and transformation. The results of this study indicated two points that need to be expanded and brought up for reflection: the importance of parent-teacher meetings and the quality of communication between the school and families. Based on the results, we understand that both families and teachers consider the school-family relationship to be fundamental and that in order for it to happen, some changes are needed so that families and the school become partners, with dialog as the path.
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    Singular perturbation of a saddle-node boundary equilibrium
    (Universidade Federal de São Carlos, 2024-08-22)
    Cunha, Jackson Luiz Orione Rafael
    ;
    Carvalho, Tiago de
    ;
    https://lattes.cnpq.br/3779225124392648
    ;
    https://lattes.cnpq.br/0606660997687745
    In this work, we analyze piecewise smooth planar vector fields defined in two regions, where the switching manifold is a curve passing through the origin. In one of these regions, a smooth vector field acts with a saddle-node equilibrium at the origin, while in the other, the vector field is transversal to the switching manifold. It is well known that this piecewise smooth vector field has codimension two in the set of all piecewise smooth vector fields, and a singular perturbation in this scenario is new in the literature. Also, since the equilibrium considered is over the switching manifold, it will be called a boundary equilibrium. We regularized the piecewise smooth vector field using the method known as Sotomayor-Teixeira. After this step, we adopt a singular perturbation approach. In this process, we identify a non-normally hyperbolic equilibrium point. For a complete understanding of the dynamics around this point, we apply a sequence of transformations to it, known as “blow-ups”.
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    Concepções de matemática e a motivação para aprender de estudantes com alta e extrema ansiedade matemática durante a pandemia de covid
    (Universidade Federal de São Carlos, 2024-08-22)
    Oliveira, Laôr Fernandes de
    ;
    Silva, Janaina Michele de Oliveira
    ;
    https://lattes.cnpq.br/5479838101146249
    ;
    https://lattes.cnpq.br/8194005344500135
    ;
    https://orcid.org/0000-0003-1108-1152
    O período pandêmico vivenciado pelo mundo entre 2020 e 2023 desencadeou ou agravou diversas dificuldades relacionadas ao contexto escolar. Esta pesquisa tem como objetivo verificar as concepções sobre a matemática e a motivação para aprender esse componente curricular no âmbito escolar, a partir de relatos de estudantes do 5º e 9º anos de Ensino Fundamental e do 3º ano do Ensino Médio que apresentaram alta e extrema Ansiedade Matemática (AM) em dois momentos. Notou-se que na visão dos alunos entrevistados a matemática é vista como um ensino essencial para a vida, entretanto, o ambiente, assim como os educadores e ferramentas de ensino-aprendizagem também o são. Assim, entende-se crucial para o desenvolvimento intelectual e acadêmico dos alunos, motivá-los, a fim de diminuir a ansiedade e com isso promover um ambiente de aprendizagem positivo, juntamente com os professores, via adaptação de métodos de ensino e estratégias de aprendizagem.
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    Alfabetização científica nos anos iniciais do ensino fundamental: um estudo à luz da aprendizagem dialógica e da matriz freiriana sobre percepções descritas por docentes
    (Universidade Federal de São Carlos, 2024-08-22)
    Crnkovic, Paula Cristina Garcia Manoel
    ;
    Marigo, Adriana Fernandes Coimbra
    ;
    https://lattes.cnpq.br/4014738511373573
    ;
    https://orcid.org/0000-0002-8784-3478
    ;
    https://lattes.cnpq.br/0881157380832695
    This study presents an analysis of three publications in which the authors are teacher-researchers who developed, applied and evaluated pedagogical practices in Science Teaching through investigation aiming at scientific literacy in the early years of Elementary School. We seek to identify in the reports present in these publications the teaching-learning process within a perspective that has dialogical learning and the freirian matrix as its theoretical foundations. The question that guided the study: "How do Science teachers in the Initial Years of Elementary School understand the acquisition of scientific literacy both from their pedagogical practices based on teaching through inquiry and from the transformations they observed in their students?" also outlined its objectives, the literature review to theoretically support the field of Science Education and the methodological procedure. Due to the characteristics of qualitative research, Bardin's content analysis technique was adopted to collect and analyze the data. To identify patterns in these contents, nine codes were assigned and subsequently distributed into two categories: 1. transformations that teachers observe in children and 2. Transformative pedagogical practices. Within the first category, dialogicity emerged as fundamental followed by argumentative skills; the acquisition of these capabilities was analyzed as part of the transformations observed in students that not only allow them to express and articulate their ideas, but also make them more active. As for the second category, the contextualization of scientific concepts was the one that stood out most among the reports, as teacher-researchers understand that it is a way of articulating students' knowledge in promoting scientific literacy. Problematizing pedagogical practices were also seen as transformative because they are operationalized through dialogue and encouragement of curiosity. Teachers understand that research-based teaching integrating interdisciplinarity and the STS/STSE approach are promoters of scientific literacy and, as they include issues such as dialogicity, contextualization, problematization, collectivity, we infer that they bring similarities with the theories of dialogical learning and the freirean matrix. The study reinforces the importance of practices based on intentions structured in pedagogical knowledge with a view to a liberating, critical, reflective education aiming to promote more effective and meaningful scientific literacy from the first school years.
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    Gênero e comunicação interna: o caso das gestoras em uma Instituição Federal de Ensino Superior
    (Universidade Federal de São Carlos, 2024-08-22)
    Góis, Mariana
    ;
    Carvalho, Angela Maria Carneiro de
    ;
    https://lattes.cnpq.br/3860073481051842
    ;
    https://orcid.org/0000-0002-0117-4518
    ;
    https://lattes.cnpq.br/4548551471662578
    This research aimed to identify the difficulties perceived by women in management positions at the Federal University of São Carlos (UFSCar) in internal communication processes, as well as to analyze the relationship between gender and these difficulties in both formal and informal communicative processes. The research utilized both qualitative and quantitative approaches. The qualitative approach focused primarily on the opinions of women in leadership positions regarding their perceptions of communication processes in their work environments. The quantitative approach considered data related to the occupation of leadership positions at UFSCar and the profiles of the research participants. The collected data were subjected to Content Analysis techniques. It was noted that the opinions varied among the research participants, indicating that their experiences and perspectives are relative, which may be associated with their individual habitus and the habitus of the organizational units in which they work. Although there are differences in participants' opinions, gender was identified as a factor that sometimes influences communication processes, leading the female managers to adopt strategies to minimize these interferences. Therefore, the analysis of gender issues in UFSCar's management reveals a complex intersection between communication, symbolic power, symbolic violence, and male domination. The information collected by the research highlights how gender stereotypes and power dynamics can shape the experiences of women in leadership positions at the university.
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