Browsing by Issue Date, starting with "2026-01-28"

Filter results by year or month

Now showing 1 - 20 of 747

Cohomologia de Cech e gerbes
(Universidade Federal de São Carlos, 2026-01-28)
Morais, Laurinda Aparecida Ferreira de
;
Ruffino, Fabio Ferrari
;
https://lattes.cnpq.br/2512107188781159
;
https://orcid.org/0000-0002-8607-3715
;
https://lattes.cnpq.br/4093179250656591
The investigation for global properties of mathematical objects often relies on an understanding of their local behavior. However, when one attempts to assemble local data from different regions of a space, obstructions may rise, revealing intrinsic topological information about the space itself. Sheaf Theory organizes mathematical information defined on local regions, while Cech Cohomology measures when this local information cannot be consistently combined to form a global object. This work develop these theories, starting from categorical foundations, including monoidal categories and 2-categories, and advancing toward sheaf theory and Cech cohomology. Subsequently, these tools are applied to the study of vector bundles, presenting a geometric model for the first Chern class, which arises within the context of Cech cohomology as the class that classifies complex line bundles up to isomorphism, thus providing a geometric interpretation of the cohomology group $H^2(X, \mathbb{Z})$. Finally, we introduce gerbes as structures that generalize line bundles within a 2-categorical framework. Using Cech cohomology and the language of 2-categories, it is described how gerbes relate to third-degree cohomology classes, offering a geometric model of $H^3(X, \mathbb{Z})$.
Análise da eficiência na educação dos municípios paulistas entre 2017 e 2021: uma abordagem não paramétrica
(Universidade Federal de São Carlos, 2026-01-28)
Silva, Aron Momberg da
;
Santana, Naja Brandão
;
https://lattes.cnpq.br/4950197164940762
;
Rodrigues, Rodrigo Vilela
;
https://lattes.cnpq.br/7066100737307566
The present study evaluated the efficiency in the management of resources allocated to basic education in municipalities within the state of São Paulo, addressing the problem of allocative inefficiency where increases in per-pupil spending do not necessarily reflect improvements in educational indicators. To this end, Data Envelopment Analysis (DEA) was employed using the BCC model with variable returns to scale, alongside the inverted frontier method and a composite index to ensure a precise differentiation of all analyzed municipalities between 2017 and 2021. By modeling the relationship between socioeconomic and financial inputs relative to IDEB performance, the study sought to investigate the influence of population size and the adaptability of school networks in the face of exogenous shocks, such as the Covid-19 pandemic, providing evidence on the importance of technical management over budgetary expansion.
Espumação química de PVC rígido empregando azodicarbonamida e bicarbonato de sódio
(Universidade Federal de São Carlos, 2026-01-28)
Gouvêa, Noélle Barbosa Favero
;
Bettini, Sílvia Helena Prado
;
https://lattes.cnpq.br/3687551763124327
;
https://orcid.org/0000-0001-6549-2980
;
Staffa, Lucas Henrique
Poly(vinyl chloride) (PVC) ranks third in the global production of thermoplastic polymers, and due to its long degradation time, it becomes essential to adopt strategies that reduce raw-material consumption in large-scale applications such as rigid sewer pipes. This study evaluated the chemical foaming of typical PVC formulations for sewage systems, comparing azodicarbonamide (pure and modified) and sodium bicarbonates, which present distinct decomposition kinetics, through incorporation in a torque rheometer and analyses of density, thermal characterization (TGA and DSC), scanning electron microscopy (SEM), mechanical testing, and compliance with technical standards. The results indicated that azodicarbonamide produced smaller and more uniform cells, with higher cell density, which translated into improved morphological control and greater expansion efficiency, particularly for the blowing agents Planagem CS-4M (10.5% expansion at 1.0 phr and 7.8% in manufactured pipes) and Planagem B-8 (4.3% at 1.0 phr and 2.9% in pipes). Sodium bicarbonates, although the most environmentally attractive option, generated more heterogeneous cells and yielded very low or null expansion (AO-653 with 1.0% and AO-421 with negative values), evidencing processing instability. Thermal and rheological analyses showed that the type of blowing agent influences the PVC crosslinking time, with azodicarbonamide accelerating the reaction while bicarbonates retard it, without altering the molar mass or the polymer’s thermal transitions, as confirmed by the K-value and DSC measurements. Overall, the morphological, thermal, and regulatory assessments demonstrated that azodicarbonamide-based systems are more suitable for rationalizing PVC consumption, combining significant expansion, thermal stability, and technical compliance, whereas sodium bicarbonates exhibited relevant limitations under the evaluated conditions.
O improvável é sempre possível: o percurso de estudantes do curso de Pedagogia a distância em uma Universidade Federal
(Universidade Federal de São Carlos, 2026-01-28)
Borges, Thayná Luana
;
Hayashi, Carlos Roberto Massao
;
https://lattes.cnpq.br/9136586124586219
;
https://orcid.org/0000-0003-1481-5545
;
https://lattes.cnpq.br/3803255211862231
This research is configured as a field study addressing the persistence of enrolled students and graduates of the distance-learning Pedagogy licensure program offered by the Directorate of Open and Distance Education at the Federal University of the Jequitinhonha and Mucuri Valleys, from 2019 to 2025. In this context, the following research question was developed: which individual and institutional factors influenced the persistence of Pedagogy students at different centers of the institution? In order to answer this question, the study examined whether the distance Pedagogy program fulfills its role in offering and democratizing higher education in the territory under analysis and how student habitus and the accumulation of cultural and economic capital affected the academic choices of students from the popular classes. The thesis defended is that there is a dichotomy in distance education with regard to the access and persistence of students from the popular strata of society, which, in turn, is linked to the forms of expression of habitus and to the accumulation of cultural and economic capital by the social agents who entered the Pedagogy degree in this modality. It is argued that, although income restriction is an element that interferes with access to higher education, considering aspects such as commuting, acquisition of materials, and moving to another city, the possibility of this education being offered at a distance allows people from the popular classes in inland municipalities to access and remain in this educational modality. Thus, the trajectory of students from the Northern, Central, and Jequitinhonha Valley regions of Minas Gerais, linked to the centers of Capelinha, Cristália, Francisco Sá, and Papagaios, was examined. To do so, the concepts of habitus, field, cultural capital, and economic capital as formulated by the sociologist Pierre Bourdieu were employed. In addition, the study drew on Vincent Tinto’s model of motivation and persistence and on the method of data triangulation, combining qualitative and quantitative analyses, through documentary analysis of regulations, minutes of the Governing Council, records of meetings of the Structuring Teaching Nucleus, and institutional secondary data (socioeconomic entrance questionnaires—number of enrolled students, graduates, and dropouts) produced by the Permanent Selection Process Committee and by the Directorate of Academic Records and Control. Subsequently, online semi-structured interviews were conducted with the students in the program, totaling 12 participants, whose data were treated from the perspective of sociological portraits, a concept proposed within Lahire’s Textual Analysis. It was found that this educational modality enables the acquisition of cultural capital, considering that, in this process of scientific study, a student habitus is being constituted, whether through socialization in internships, virtual interaction, debates in web conferences with professors, or supervision in the final course project. At the same time that it allows access, its dynamics restrict the forms of cultural capital, since the embodied form and the interaction between the agents’ dispositions and the structures of the field are reduced. Thus, the need to increase face-to-face practices at the centers is emphasized, as well as the need for other actions to be developed in the formation of the social/university agent; moreover, despite the dominated condition of the agents under examination, motivation and persistence proved to be guiding factors for student persistence, as well as for institutional actions.
Exploring multiphasic multi principal element alloys: an approach using experimental and computational tools
(Universidade Federal de São Carlos, 2026-01-29)
Assis, Flávio Fávaro de
;
Oliveira, Pedro Henrique Fernandes
;
Coury, Francisco Gil
;
https://lattes.cnpq.br/8609825406277730
;
https://lattes.cnpq.br/0934185000093479
High entropy alloys (HEAs) are a class of metals that do not have a single principal element in their composition. Initially great effort was made to search for single phase HEAs but with the development of more recent frameworks, great interest emerged around multiphasic microstructures. In this study, two different routes aim to search phase stability and structural properties involving multiphasic HEAs. The first study investigates phase stability of the Cr51.5Co15Ni33.5 duplex HEA. This alloy was designed using CALPHAD simulations to achieve a dual-phase microstructure of Face-Centered Cubic (FCC) and Body-Centered Cubic (BCC) phases, while suppressing the formation of the detrimental sigma phase. The HEA was characterized using SEM, TEM, XRD and synchrotron diffraction. Experimental results confirmed the presence of the FCC and BCC phases, although the formation of the sigma phase was also observed, consistent with TSAI´s criteria and warranting further analysis of the CALPHAD predictions. The second Chapter shows a combination of simulation techniques and experimental analysis to estimate interfacial energies of a HEA based on Ni superalloys. The composition of the HEA was designed by high throughput calculations to have thermal stability at high temperature and a microstructure composed of FCC matrix and L12 Ni3Al-type precipitates. The main simulation technique employed was Density Functional Theory – DFT trough the code Quantum Espresso using the supercell method. The results obtained were compared to experimental analysis of synchrotron x-ray diffraction data and precipitation simulations showing that the combination of techniques can lead to reasonable values of interfacial energy. That combination of methods serves as a starting point to develop reliable methodologies for estimating interfacial energies for metallic alloys, which is important since that energies between FCC and L12 in superalloys and HEAs are difficult to measure experimentally and play a key role in phase stability and final properties of the material.
Narrativas conectadas: uma etnografia virtual sobre os brasileiros deportados dos Estados Unidos
(Universidade Federal de São Carlos, 2026-01-29)
Zoppi, Maria Luisa Leiva
;
Machado, Igor José de Renó
;
https://lattes.cnpq.br/4705450652848752
;
https://orcid.org/0000-0001-7811-2641
;
https://lattes.cnpq.br/4955636702503502
Between wars, political and climate crises, tragedies and acts of violence, there are immigrant families seeking opportunities in other countries. Globalization has facilitated the mobility, allowing many people to pursue the place they perceive as best to live. However, countries such as the United States, which is the destination for many Brazilians who dream of living abroad, are becoming increasingly strict with their migration and deportation policies. This work analyzes precisely these experiences lived by Brazilian immigrants in the United States in the year 2025 who face the risk of deportation. The research was conducted from the perspective of virtual ethnography, focusing on content produced and shared on the TikTok platform. The objective is to investigate how individuals cope with deportation, presenting their own narratives and experiences, as well as forms of belonging and stigmatization in the digital environment. The study was conducted using a qualitative virtual ethnographic approach to analyze videos, comments, and interactions of Brazilian migrant profiles on the platform.
Efeito do nanomaterial de óxido de grafeno (GO) de interesse da indústria petrolífera: in vitro e in vivo
(Universidade Federal de São Carlos, 2026-01-30)
Albuquerque, Yulli Roxenne
;
Anibal, Fernanda de Freitas
;
https://lattes.cnpq.br/4918261968772806
;
https://lattes.cnpq.br/7896826463889321
;
https://orcid.org/0000-0001-8501-4695
Graphene oxide (GO) is a two-dimensional nanomaterial derived from graphite, functionalized with oxygen-containing groups that confer hydrophilic properties and surface reactivity, enabling a wide range of industrial applications. However, expanding its use requires a better understanding of its biological effects and potential health risks. This study aimed to evaluate the nanotoxicity of GO developed for enhanced oil recovery, considering its physicochemical properties and biological responses in experimental models. GO was characterized by Fourier-transform infrared spectroscopy, thermogravimetric analysis, dynamic light scattering, zeta potential, and scanning electron microscopy. The results confirmed the presence of characteristic oxygen-containing functional groups and demonstrated dispersion medium-dependent behavior, with greater colloidal stability in ultrapure water than in saline solution (0.9%) or DMEM, and mean equivalent circular diameters of 11.37 μm in water and 11.78 μm in DMEM. In vitro, HepG2 cells exposed to GO (100-500 μg/mL) showed a transient increase in mitochondrial metabolic activity, suggesting adaptive cellular responses. In vivo, BALB/c mice were exposed via intraperitoneal administration at doses ranging from 5 to 50 mg/kg. Transient reductions in food and water intake and body weight were observed, accompanied by changes in the leukocyte profile. These changes included increased neutrophils and decreased total leukocytes, mononuclear cells, and eosinophils in peritoneal cavity lavage, as well as elevated neutrophil counts in bronchoalveolar lavage. Among the cytokines evaluated (IL-6, IFN-γ, and TNF), only IL-6 showed a significant reduction in peritoneal cavity lavage. An increase in relative liver weight associated with GO accumulation, elevated serum aspartate aminotransferase levels, and histopathological alterations in the liver, spleen, and lungs characterized by inflammatory infiltrates were also observed. These findings suggest that GO may induce mild local inflammatory responses and dose-dependent hepatic accumulation, highlighting the importance of further studies with prolonged exposure to assess potential adverse effects over time and to investigate the reversibility of the observed biological responses.
O corpo da professora pedagoga na relação com as crianças pequenas: do chão da creche aos documentos oficiais
(Universidade Federal de São Carlos, 2026-01-30)
Machado, Monize Laís Fernandes
;
Lombardi, Lucia Maria Salgado dos Santos
;
https://lattes.cnpq.br/5697508831302188
;
https://orcid.org/0000-0001-6978-864X
;
https://lattes.cnpq.br/2941790773941991
This research aims to understand the body of the pedagogical teacher in relation to young children in the nursery, with the research question being "How do teacher's body affect young children and the educational processes with them?". To seek answers, the study reflected on aspects of the teacher's body integrated into the educational environment and the play of and with children, and carried out an analysis of the presence or absence of the body in official documents, namely: LDB Law No. 9,394 of 12/20/1996, General National Curriculum Guidelines for Basic Education of 2013, National Curriculum Guidelines for Early Childhood Education of 2010, National Curriculum Guidelines for the Undergraduate Course in Pedagogy of 2006 and the National Common Curriculum Base of 2017. The research adopts a qualitative approach, bibliographical nature, constituting a State of Knowledge review, documentary, focusing on the analysis of normative/legal documents, and with an (auto)biographical perspective. It dialogues with interdisciplinary studies of the body, especially with the Corpomedia theory, seeking to produce situated and implicated understandings about the complexity of teacher's body in the daycare center and its relationships with young children. The results pointed out to the importance of teacher's body in pedagogical practices and to the need to value the bodies of teachers and young children, understanding that the conception of body reverberates in pedagogical proposals and in the planning of educational time and space. The literature studied reveals a gap in body awareness training, still lacking greater space in teacher training curricula. Among the legal documents analyzed, the document governing the degree in Pedagogy indirectly provided guidance on work described as practical. In the documents governing work in daycare centers, it was possible to observe how work with child's body is guided, however, there is little mention and few direct guidelines for who will propose the guidelines: the teacher.
Entre telas e lacunas: competências digitais entre os alunos da Educação de Jovens e Adultos
(Universidade Federal de São Carlos, 2026-01-30)
Silva, Natália da Rocha da
;
Kerbauy, Maria Teresa Miceli
;
https://lattes.cnpq.br/4762029784021248
;
https://orcid.org/0000-0002-0622-1512
;
https://lattes.cnpq.br/7702854893608191
This study investigates the development of digital competencies among students enrolled in Youth and Adult Education (Educação de Jovens e Adultos – EJA), focusing on individuals who did not complete elementary education during their regular school trajectory. The research is grounded in the understanding that the intensification of digitalization in contemporary society has increased the demand for competencies related to the use of Information and Communication Digital Technologies (ICDTs), thereby deepening inequalities historically associated with low levels of schooling and socioeconomic vulnerability. This is an applied field study with a descriptive design and a quantitative approach, conducted through a data survey. A total of 110 printed questionnaires with closed ended questions were administered to students from two public municipal schools located in the cities of Araraquara and São Carlos, São Paulo, Brazil. The analysis is informed by the Science, Technology and Society (STS) field, articulating the concepts of digital competence, digital exclusion, and Youth and Adult Education. The findings indicate that although internet access is widespread among participants, the development of digital competencies remains limited and uneven. The results highlight the centrality of smartphones as the main device used to access the internet, as well as the predominance of practices related to social media use and video consumption. In contrast, there is limited use of digital tools associated with information production, organization, work-related activities, and citizenship. Significant difficulties in the digital learning process were also identified, linked to both structural and educational factors, such as low educational attainment, limited income, lack of formative mediation, insecurity in dealing with technological changes, and fear of making mistakes or falling victim to digital fraud. Despite these barriers, most participants expressed a strong interest in learning more about digital technologies, indicating that digital exclusion in this context is not the result of a lack of motivation, but rather of insufficient access to continuous and contextualized learning opportunities. It is concluded that digital exclusion goes beyond the issue of access, encompassing limitations in the autonomous, critical, and meaningful use of digital technologies. The findings reinforce the need for integrated public policies that take into account the specificities of Youth and Adult Education, combining access, training, pedagogical mediation, and material conditions in order to promote socially situated digital inclusion.
Função autonômica cardíaca e capacidade funcional em covid-19: contribuições para a confiabilidade da variabilidade de frequência cardíaca em hospitalizados e para a compreensão dos fatores que influenciam o desempenho funcional em casos leves
(Universidade Federal de São Carlos, 2026-01-31)
Araújo, Aldair Darlan Santos de
;
Dibai, Daniela Bassi
;
https://lattes.cnpq.br/0861598490954598
;
Silva, Audrey Borghi
;
https://lattes.cnpq.br/4855616925791895
Heart rate variability (HRV) and functional capacity are important markers of physiological status and cardiovascular system performance, with broad clinical and scientific applicability. The overall aim of this thesis was to test the intra- and inter-examiner reliability of HRV analysis in patients hospitalized with COVID-19, investigate cardiac autonomic modulation in individuals with mild COVID-19, and assess functional capacity in post-COVID-19 individuals with mild disease. In the first study, 103 patients hospitalized with COVID-19 were evaluated for the intra- and inter-examiner reliability of short-term HRV using linear and nonlinear indices. The analysis showed excellent reliability, with intraclass correlation coefficients (ICC) ranging from 0.956 to 0.999 and coefficients of variation below 10%, demonstrating that resting HRV measured by a portable device is highly precise, regardless of the examiner or timing of measurement. The second study investigated 130 individuals with mild COVID-19, stratified by time since infection (≤6 weeks, 2–6 months, and 7–12 months) and compared to a healthy control group. Groups with shorter time since diagnosis showed reduced parasympathetic modulation, while individuals assessed 7–12 months post-infection showed partial recovery compared to the control group. Multiple linear regressions indicated that age and time since infection were significant predictors of RMSSD and SD1, suggesting a transient effect of mild COVID-19 on the autonomic nervous system. In the third study, 115 post-COVID-19 individuals with mild disease were evaluated for functional capacity using the six-minute walk test (6MWT), cognitive function, cardiovascular responses, and determinants of functional performance. Participants assessed during the acute phase of infection (≤1 month) walked a significantly shorter distance than those assessed after three months, and depressive symptoms were also associated with reduced distance walked. No differences in cognitive function were observed among the groups, and factors such as age, BMI, sex, and anxiety did not significantly influence functional performance. Together, the results of this thesis provide robust evidence regarding HRV reliability in hospitalized patients, describe the gradual recovery of autonomic modulation following mild COVID-19, and identify factors associated with functional capacity, with important clinical implications for monitoring and rehabilitation of individuals affected by the virus.
Processos estruturais e meios alternativos de resolução de conflitos como soluções aos processos ambientais tradicionais
(Universidade Federal de São Carlos, 2026-02-01)
Ribeiro, Elen Pessoa de Queiroz
;
Oliveira, Celso Maran de
;
Amarante Junior, Ozelito Possidonio de
;
https://lattes.cnpq.br/1314612121213589
;
https://lattes.cnpq.br/9911833172043700
Apresentar e discutir alternativas viáveis que podem superar os obstáculos inerentes aos processos judiciais tradicionais e, em específico, às lides ambientais. Metodologia - Pesquisa bibliográfica, que consistiu na consulta da literatura e textos jurídicos doutrinários. Originalidade/relevância - Na seara ambiental, as formas tradicionais do processo civil não seriam adequadas: as características do dano ambiental exigem outra forma de pensar. Resultados - Foi possível entender que os processos estruturais se mostram mais apropriados para a resolução de litígios ambientais complexos, além de possibilitarem a flexibilização dos procedimentos adotados para o tratamento do problema. Já os meios alternativos de solução de conflitos na seara ambiental, previstos no artigo 8.º do Acordo de Escazú, consistem em mecanismos, como a mediação e a conciliação e a arbitragem, para resolver as controvérsias. Contribuições teóricas/metodológicas - A complexidade das lides ambientais demanda a superação dos entraves relacionadas às normas processuais tradicionais. Ademais, o uso destas alternativas aos processos judiciais tradicionais somente se mostrará efetivo se estiver condicionado à ampla participação, principalmente da sociedade e, em especial, dos grupos diretamente afetados pelo problema/objeto ambiental em questão. Contribuições sociais e ambientais - Os processos estruturais ambientais possuem o condão de trazer reformas/mudanças no status quo, porém esse potencial é pouco explorado por parte do poder judiciário. Ainda, o uso dos meios alternativos de conflitos, conciliação, mediação e arbitragem, poderia ser um meio viável para superar obstáculos como a demora no processo tradicional e as disparidades, econômicas e sociais, entre as partes envolvidas.
Mapping the needs, challenges, and strengths of a hemodialysis sector based on the Strength- based Nursing and HealthCare – Leadership philosophy
(Universidade Federal de São Carlos, 2026-02-02)
Luvizutto, Julia
;
Fumincelli, Laís
;
https://lattes.cnpq.br/9372589851606243
;
https://orcid.org/0000-0001-9895-8214
;
https://lattes.cnpq.br/2566413229968009
A doença renal crônica (DRC) representa um desafio significativo e crescente na saúde global. O papel da enfermagem na continuidade do cuidado a pacientes com DRC é fundamental e multifacetado, abrangendo desde o manejo de sintomas até o suporte emocional e educacional. Dado o contexto complexo enfrentado por pacientes com essa condição, uma ampla gama de intervenções possíveis se evidencia. Ao cuidar desses pacientes, os enfermeiros podem fundamentar sua prática clínica em modelos teóricos, principalmente na filosofia Strengths-Based Nursing and Healthcare Leadership (SBNH-L). Portanto, é imprescindível realizar um mapeamento completo dessas intervenções de enfermagem para priorizar e implementar ações direcionadas a essa população específica. Objetivo: Mapear as necessidades, os desafios e as forças, com base na filosofia SBNH-L, junto à equipe de enfermagem de uma unidade de hemodiálise de um hospital no interior do estado de São Paulo, Brasil. Materiais e Métodos: Este estudo utilizou a metodologia de Mapeamento de intervenções (MI), compreendendo a primeira etapa, o Modelo Lógico do problema, apresentado por meio de uma revisão de escopo (Artigo 1) e um estudo descritivo com abordagem qualitativa (Artigo 2). Na revisão de escopo, seguindo a metodologia JBI proposta pelo Joanna Briggs Institute (JBI), foram realizadas buscas nas bases de dados Embase e MEDLINE via OVID, CINAHL Complete, Biosis, Web of Science Core Collection, SciELO Citation Index, Scopus e na base de dados Nursing & Allied Health Premium. Esta revisão avaliou o alinhamento dessas bases de dados com os valores da filosofia de Enfermagem e Liderança em Saúde Baseadas em Forças (ELSB). Seguindo os preceitos éticos, este estudo descritivo incluiu profissionais de enfermagem atuantes no serviço de hemodiálise do hospital, tanto em assistência direta ao paciente quanto na gestão do departamento, que estivessem disponíveis e interessados em responder aos instrumentos de coleta de dados. Profissionais em férias, licença ou afastamento do trabalho foram excluídos. A coleta de dados foi realizada presencialmente na instituição ao longo de três meses. Espera-se que esta pesquisa contribua para o fortalecimento das evidências científicas e inovações na prática de enfermagem em um departamento de hemodiálise. Resultados: De 4938 artigos, 174 foram incluídos para leitura completa e 74 para extração e interpretação de dados. Os estudos foram conduzidos em diversos países e as intervenções de enfermagem identificadas são relatadas. Em relação à abordagem qualitativa do estudo, participaram treze profissionais de enfermagem, com idades entre 30 e 39 anos (38,5%), sendo que 53,8% estavam com 4 a 6 anos de experiência profissional e atuavam em um ambiente de hemodiálise. As atividades e os desafios enfrentados pelos profissionais de enfermagem na unidade de hemodiálise incluíram dificuldades com pacientes e seus familiares (69,2%), sobrecarga de trabalho (46,2%) e barreiras de comunicação dentro da equipe (46,2%). Cinco temas foram identificados: 1. Desafios no cuidado ao paciente; 2. Desafios institucionais; 3. Estratégias de enfrentamento da equipe; 4. Tecnologias e recursos necessários; 5. Pontos fortes e qualidades da equipe de enfermagem. A partir da integração de dados com a SBNH-L, destacam-se os valores de Adequação, Parcerias Colaborativas e Múltiplas Perspectivas. Conclusão: A revisão de escopo evidenciou que as intervenções de enfermagem se concentram predominantemente no autocuidado, no manejo de sintomas, no apoio emocional e na adesão ao tratamento, reforçando o papel essencial e holístico dos enfermeiros no apoio a pacientes com doença renal crônica. Complementarmente, o estudo qualitativo revelou os desafios, necessidades e pontos fortes vivenciados pela equipe de enfermagem no mundo real, enfatizando questões como carga de trabalho, barreiras de comunicação e dificuldades relacionadas ao paciente, bem como as estratégias adaptativas e as competências intrínsecas da equipe. Em conjunto, esses achados demonstram que o cuidado de enfermagem eficaz em hemodiálise deve ser fundamentado em uma abordagem multidimensional que integre intervenções baseadas em evidências com as experiências vividas e as capacidades dos profissionais de enfermagem. O alinhamento com a filosofia Strengths-Based Nursing and Healthcare Leadership (SBNH-L) ressalta a importância dos valores que orientam a prática. Em última análise, a incorporação desses princípios pode fortalecer o atendimento centrado no paciente, aumentar a resiliência e a liderança da equipe e apoiar o desenvolvimento de práticas sustentáveis e inovadoras em unidades de hemodiálise.
Lean Healthcare: barreiras e caminhos estratégicos para superá-las
(Universidade Federal de São Carlos, 2026-02-02)
Codognotto, Emanuela Leal
;
Lizarelli, Fabiane Letícia
;
https://lattes.cnpq.br/4525431419326559
;
https://lattes.cnpq.br/4491763719499638
;
Godinho Filho, Moacir
The pursuit of efficiency and quality in healthcare has led hospitals to adopt continuous improvement practices inspired by the industrial sector, such as Lean Healthcare (LH). However, organizations still face several challenges that hinder its successful implementation. This research aimed to understand the relationship between the main barriers to LH implementation and the strategic pathways to overcome them. The study adopted a mixed-methods approach, combining a Systematic Literature Review (SLR) and Content Analysis, which identified 14 strategic means related to ten main barriers, with Interpretive Structural Modeling (ISM) and MICMAC analysis, employed to map the relationships of dependence and interdependence among the factors. The results enabled the development of a comprehensive four-level framework, representing the logical progression from foundational conditions to sustainable LH outcomes. The study contributes to theory by integrating qualitative and quantitative approaches through the lens of Organizational Learning Theory, offering a hierarchical view of barriers and strategies to overcome them. From a practical perspective, it provides a structured roadmap for hospital managers to prioritize actions and strengthen organizational learning within their Lean initiatives. The originality of the research lies in the integration of ISM–MICMAC methodologies with learning theory, resulting in an innovative model to promote the sustainability of Lean Healthcare.
Elaboração e evidências de validade de um instrumento para avaliação do uso de estratégias metacognitivas por graduandos e pós-graduandos
(Universidade Federal de São Carlos, 2026-02-02)
Duarte, Laura Andrelynne Durans
;
Schelini, Patrícia Waltz
;
https://lattes.cnpq.br/6185333517392859
;
https://orcid.org/0000-0002-7326-7086
;
https://lattes.cnpq.br/3309186115738010
Metacognition refers to an individual's thoughts and knowledge about their own cognitive processes, and the subsequent ability to consciously adjust them to enhance their learning and problem-solving processes. Metacognitive strategies are components of metacognition, defined as practices adopted to monitor progress in performing a task. To assess these strategies, Psychology lacks adequate psychometric instruments with good psychometric properties. This dissertation is organized into two studies that sought to develop a new psychometric instrument to assess the use of metacognitive strategies in the university population and verify its psychometric properties. Study 1 focused on the initial development of the items and obtaining evidence of content validity through expert analysis and semantic analysis. After evaluation by judges and the target audience (undergraduate and graduate students), the Metacognitive Strategies Scale (MSS) was finalized with 48 statements. The results indicated that the MSS reached good content validity indicators, with Aiken V indices between 0.75 and 1.00, and an average semantic validity of 8.99, which attests to the clarity of the writing for the target audience. Study 2 continued the objectives, investigating the validity by internal structure, by relationship with external variables, and the reliability of the MSS in 149 undergraduate and graduate students. Exploratory Factor Analysis (EFA) and Exploratory Graphical Analysis (EGA) indicated a theoretically coherent two-dimensional solution of 17 items, composed of the factors Planning (P) and Monitoring and Regulation (MR). The evidence of convergent validity was supported by positive, moderate, and statistically significant correlations between the total MSS scores and the Metacognitive Awareness Inventory (MAI) (ρ = 0.48) and Learning and Studying Strategies Inventory (LASSI) (ρ = 0.56) instruments. Additionally, the MSS demonstrated optimal precision, with internal consistency coefficients (McDonald's ω and Cronbach's α) ranging from 0.78 to 0.85. In summary, the evidence collected suggests that the Metacognitive Strategies Scale constitutes a good quality psychometric instrument, suitable for measuring these strategies in the university target audience.
Termocronologia por traços de fissão em monazita aplicada no Domínio Ceará Central, Brasil
(Universidade Federal de São Carlos, 2026-02-03)
Pereira, Vinicius de Queirós
;
Dias, Airton Natanael Coelho
;
https://lattes.cnpq.br/7070166380084691
;
https://lattes.cnpq.br/8855947965166625
;
Oliveira, Sandro Guedes
Fission Track Thermochronology (FT) constitutes one of the principal geochronological tools for reconstructing the low-temperature thermal history of rocks, being crucial for understanding geotectonic evolution and the surface dynamics of relief. Based on the counting of microscopic tracks produced by the spontaneous fission of ²³⁸U, this technique records geological events associated with low thermal regimes with high sensitivity. In this context, monazite emerges as a particularly promising thermochronometer for ultralow-temperature ranges (25–45 °C), with the capacity to record subtle processes such as shallow exhumation and recent erosion. Despite its widespread occurrence and high uranium content, the application of FT in monazite remained limited for decades by methodological constraints, mainly due to the dependence on equations requiring the use of nuclear reactors. In this work, Monazite Fission Track Thermochronology (MFT) was implemented in an exploratory manner within the TRACKs Group based on an internal laboratory calibration equation combined with a chemical etching protocol described in the specialized literature. Analyses performed on international reference samples from Japan and Australia yielded ages consistent with previously published data, demonstrating the robustness and analytical feasibility of the adopted protocol. In addition, a chemical etching curve was constructed relating surface track density and confined track length to etching time. The revelation of tracks during chemical etching proved congruent with previously reported results, while small observed variations may be associated with the degree of accumulated radiogenic damage. These results highlight the superiority of the step-etch approach compared to the use of fixed chemical etching times. The application of MFT to Brazilian samples from the Central Ceará Domain resulted in ages ranging from 2.10 ± 0.25 to 12.15 ± 1.40 Ma, associated with ultralow-temperature conditions. This interval points to a cooling episode subsequent to the youngest magmatic events in the region, active since the Miocene. Thermal modeling corroborates these results, indicating progressive cooling until the Pleistocene, followed by a period of thermal stability. Taken together, the data reinforce the potential of MFT as an innovative and robust tool for investigations into the recent thermal evolution of the continental crust.
Limites e possibilidades das ações formativas a partir da educação CTSA no caso do cursinho pré-vestibular popular da UFSCar
(Universidade Federal de São Carlos, 2026-02-03)
Nascimento, Edson Ricardo Nunes
;
Lopes, Nataly Carvalho
;
https://lattes.cnpq.br/0285391776145231
;
https://orcid.org/0000-0002-5113-8398
;
https://lattes.cnpq.br/7163639835151778
This research aims to investigate how the articulation between Science, Technology, Society, and Environment (STSE) education and Socio-scientific Issues (SSI) can be participatorily constructed with teachers at a popular university prep course, analyzing the potentialities and limits of this integration in the context of UFSCar's Popular University Prep Course (UFSCurso). Drawing on formative processes developed with scholarship teachers enrolled in undergraduate and teacher education programs at UFSCar, and grounded in the principles of participatory action research, we sought to promote pedagogical practices that articulated university entrance exam preparation with students' critical formation. The investigation involved seven formative sessions, focal interviews, and analysis of lesson plans produced by the scholarship teachers. The results reveal significant advances in the teachers' conceptual appropriation of STSE/SSI frameworks, particularly in recognizing the non-neutrality of science and in contextualizing content through local socio-scientific themes. However, structural limitations persist, related to the pressure of the university entrance exam, administrative task overload, and the difficulty of fully materializing the more advanced stages of STSE education — particularly the preparation for sociopolitical action. The research demonstrated that popular prep courses constitute privileged contexts for critical science education, revealing a significant gap in the field of STS studies within non-formal spaces of popular education.
Políticas de transferência de renda para pessoas idosas : Uma análise atual do Benefício de Prestação Continuada no Brasil
(Universidade Federal de São Carlos, 2026-02-03)
Paz, Victor Matheus Queiroz de
;
Itria, Alexander
;
https://lattes.cnpq.br/7278290457268315
;
https://orcid.org/0000-0001-7500-0230
;
https://lattes.cnpq.br/1611745238418612
This study examines the extent to which Brazil’s Benefício de Prestação Continuada (BPC) has promoted economic security and social equity for vulnerable older adults, in the context of structural inequalities and fiscal constraints. A qualitative, exploratory approach was adopted, grounded in an integrative literature review and the analysis of secondary data from official sources, normative documents, and international reports. The findings indicate that the BPC consistently performs a non-contributory protective role by guaranteeing a minimum income and reducing immediate exposure to material deprivation, particularly among older adults whose work histories are marked by informality and low contributory density. However, the programme’s contribution to social equity is not automatic: the effective realization of this right depends on implementation dynamics, within which barriers to access and benefit continuity persist and tend to intensify with advancing age and vulnerability. Judicialisation emerges as a structural component of the benefit’s operation, functioning as a recurring channel for contesting administrative denials and disputing eligibility criteria and evidentiary standards, thereby contributing to unequal realization of the right. In addition, fiscal and administrative constraints—such as backlogs, fluctuations in operational capacity, and control routines—produce delays and uncertainty, potentially increasing indirect costs and litigation. It is concluded that the BPC strengthens economic security, but its capacity to promote equity depends on governance arrangements, state capacity, and the reduction of institutional frictions.
Experiências (de um) docente no ensino de língua inglesa como língua adicional: uma cartografia do aprender surdo
(Universidade Federal de São Carlos, 2026-02-03)
Palaoro Junior, Olavo
;
Martins, Vanessa Regina de Oliveira
;
https://lattes.cnpq.br/4768682330164550
;
https://orcid.org/0000-0003-3170-293X
;
https://lattes.cnpq.br/2845746767989064
This study investigates the teaching of English as an additional language to deaf students in a municipal public school with a bilingual approach, focusing on these students' perceptions of the educational encounters that constitute their learning. The research starts from the understanding that language teaching for deaf students requires the recognition of a unique experiential matrix, constituted by Libras (Brazilian Sign Language) as the structuring language of deaf subjectivity. From this perspective, English is not understood as a third language but as an additional language, learned in contrast to Libras and traversed by linguistic, cultural, cognitive, and affective dimensions specific to deaf learning. The general objective of this research is to analyze the perceptions of deaf students regarding the educational process and the encounters that constitute their learning of English as an additional language, understood as an experience of invention and production of meaning in contrast to Libras (Brazilian Sign Language). Specific objectives include discussing the philosophical concepts of matrix language and additional language in English language teaching for the deaf students, in light of the Philosophies of Difference, problematizing ways of thinking about language as experience and not as representation; analyzing, based on existing research and productions, the dilemmas, advances, and conceptions that permeate English language teaching for deaf students, highlighting the tensions, challenges, and possibilities present in bilingual educational contexts, towards a multilingual and multimodal perspective; and promoting a cartography of the processes of subjectivation that are outlined in the perceptions of deaf students regarding the encounters experienced in learning English as an additional language, considering the conceptions of bilingualism and multilingualism as a theoretical basis for understanding such experiences.. The research is grounded in the philosophy of difference, especially the thoughts of Michel Foucault, Gilles Deleuze, and Félix Guattari, mobilizing the concepts of matrix of experience, matrix language, additional language, bilingualism, and multilingualism. The methodology adopted is cartography, understood as a method of data production that follows processes in motion and is constructed in the interstices of encounters. The empirical material consists of interviews with deaf students and the educational interpreter, as well as scenes from daily school life, analyzed through the mapping of molar, molecular, and escape lines. The analysis shows that learning English, when traversed by the centrality of Libras (Brazilian Sign Language) and by pedagogical practices sensitive to visual-gestural experience, displaces hegemonic models of language teaching and reveals the power of a multilingual, multimodal, and translinguistic perspective. By giving visibility to the perceptions of deaf students, the research contributes to rethinking the teaching of English as an additional language in bilingual contexts, affirming Libras (Brazilian Sign Language) as the primary language and learning as an ethical, political, and inventive process.
Perspectiva semiótica na autobiografia: o que é isso, companheiro?
(Universidade Federal de São Carlos, 2026-02-03)
Mathias, Rafaela Reino
;
Barros, Mariana Luz Pesso de
;
http://lattes.cnpq.br/4830505244404566
;
https://orcid.org/0000-0002-1662-2125
;
http://lattes.cnpq.br/6207765511418425
This study examines the relationship between Brazilian literature and the military regime, considering literature as a key source for understanding the censored history of the dictatorship. It analyzes O que é isso, companheiro? (1996), by Fernando Gabeira, through the lens of discursive semiotics, focusing on syntactic and semantic-discursive levels to identify meaning effects. The research also draws on tensive grammar, as proposed by Jacques Fontanille and Claude Zilberberg (2001), to explore the notions of field of presence and event in autobiographical discourse.Based on Mariana Luz Pessoa de Barros (2016), particularly the concepts of the memory of the past event and the event memory, the study finds that Gabeira’s narrative primarily reconstructs lived experiences from a distanced perspective, characteristic of the memory of the past event. However, it also incorporates elements of the event memory, creating a degree of sensorial engagement that brings the reader closer to the narrated experience. The results indicate that the work articulates both documentary and experiential dimensions, functioning not only as a historical record but also as a narrative that produces effects of presence and meaning in the social sphere.
Autoagregados de lecitina e sais de bile na presença de carboximetilquitosana
(Universidade Federal de São Carlos, 2026-02-04)
Bega, Brenda da Silva
;
Paula, Kelly Roberta Francisco Muruci de
;
https://lattes.cnpq.br/0422652925722673
;
https://orcid.org/0000-0001-6673-3280
;
https://lattes.cnpq.br/7821276415930391
The modulation of self-associated systems by polymers plays a fundamental role in the development of colloidal formulations, enabling control over their rheological and structural properties. This work investigated the influence of carboxymethyl chitosan (CMQ) on systems formed by lecithin and the bile salts, sodium cholate (NaC), sodium deoxycholate (NaDC) or sodium taurodeoxycholate (NaTDC), in aqueous medium. CMQ was synthesized by three methodologies and characterized by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The CMQ-M1 sample was selected for presenting the highest yield (52.75%), more intense bands associated with carboxymethyl groups, and higher crystallinity (55.60%). Binary bile salt/lecithin systems were prepared at 1:1 and 1:2 ratios, followed by the addition of CMQ-M1 at concentrations of 0.5, 1.0, and 2.0% (w/w). The influence of the polymer was evaluated by dynamic light scattering (DLS), zeta potential, and rheological assays. The results showed that CMQ interacts in a manner dependent on the chemical nature of the bile salt and the ratio between the components. The results demonstrated that the behavior of these systems is strongly dependent on the structural differences among the bile salts. In systems containing NaC, CMQ increased the magnitude of the zeta potential and altered aggregate size, indicating greater colloidal stability. In systems containing NaDC, it reduced the zeta potential, favoring aggregation and disruption of the viscoelastic network. In systems containing NaTDC, it resulted in high zeta potential values, structural reorganizations, and increased viscosity, especially at the 1:1 ratio, where 2% CMQ led to phase separation. Overall, the results demonstrate that CMQ is an efficient polymer for modulating the structural, rheological, and stability properties of lecithin- and bile salt-based colloidal systems. These findings indicate the potential of these systems for pharmaceutical applications, such as formulations and controlled drug delivery systems.