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As fronteiras do trabalho digital: autonomia, flexibilidade, criatividade e sincronia temporal
(Universidade Federal de São Carlos, 2023-12-15)
Pelegrini, João Gabriel Selles
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Lima, Jacob Carlos
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https://lattes.cnpq.br/9244132532446607
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https://orcid.org/0000-0001-6475-9575
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https://lattes.cnpq.br/5153829875111354
Starting from the theme of autonomy/subordination of labour in the context of capitalist domination, this paper analyses the work process of digital workers linked to the software development process. As a central problem, we question the supposed autonomy, flexibility and creativity that would define this type of work, especially when compared to types that would be subordinated to management schemes such as Taylor-Fordism. In order to investigate this problem, we analysed the work process of 16 digital workers through semi-structured interviews. This study is based on the following analytical hypothesis: the market demand for certain skills, such as responsibility and autonomy, operation and creativity, organisation and flexibility, results in flexible working hours when they express the logic of a synchronous temporal organisation of the work process. This synchrony is expressed in the possibility of the work process taking place at the same time as activities that would otherwise be free time. Synchrony is also found in the combination of quantitative metrics (hours, days, weeks, sprints, measures set by companies and measured by platforms) and qualitative metrics (deliveries and what is delivered, problem solving, productivity of time in relation to the amount spent, for example). From the research we have found that the skills mentioned above are ways of working and living that are shaped by this temporal logic and that they produce a digital worker who is always connected to the demands of the company and always ready to start their work process, insofar as they are responsible for the market objectives of those who employ them, flexible in relation to the demands and forms of management needed to organise digital work processes, and finally capable of performing the activities needed to fulfil what is required of them as useful in their workforce. However, digital workers show that, to the extent that they incorporate this way of living and working, they either adapt to it, reproducing the organisational principles of the work process and the underlying temporal logic, or they oppose and resist this temporal regime, developing thoughts that are critical of it.
Representações da paleontologia e do paleontólogonas nas mídias cinematográficas ocidentais
(Universidade Federal de São Carlos, 2023-12-15)
Soares, Anna Paula Quadros
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Mota, Ilka de Oliveira
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https://lattes.cnpq.br/9991950104035858
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https://orcid.org/0000-0001-6637-4310
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https://lattes.cnpq.br/6819957053456495
Based on the theoretical field of Paleontology at the interface with discourse studies, the present research aimed to understand the imaginary representations of the paleontologist and Paleontology in three foreign films: Bringing Up Baby (1938), Jurassic Park (1993) and Ammonite (2020). The aim was to analyze how Paleontology and the paleontologist and their craft appear in the three cinematographic materialities, understanding the differences and similarities with what is established by the scientific field. In addition to the concept of Paleontology, we appropriate the notion of imaginary and gender in the analysis. The analytical work considered not only the different periods in which the films were produced, but also the genre of each of them, since, as a theoretical assumption, the typology (comedy, action and biographical drama) also counts in the process of significance. As a result, the analysis showed that Ammonite is the film that comes closest to the field of Paleontology, whether due to the use of technical and scientific terms, or the way it portrays the paleontologist's job, while Bringing up baby, as it is a genre film comical, it is the furthest away from the field of Paleontology. Jurassic Park is in an intermediate position, oscillating between a fantastical and stereotypical representation of Paleontology and a relatively appropriate representation according to scientific discourse.
Multiplicação de distribuições no estudo de soluções de ondas delta choque
(Universidade Federal de São Carlos, 2023-12-15)
Ferreira, Liliane da Cunha
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Kondo, Cezar Issao
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https://lattes.cnpq.br/0900348462714778
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https://orcid.org/0000-0002-6275-4305
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https://lattes.cnpq.br/2626763182573446
In this work, we will find the delta shock wave solution for three Riemann problem where two are hyperbolic systems of conservation laws with linear damping and a three-component nonlinear chromatography model. We will apply concept of α-solutions to find them. This concept uses the product of distributions.
Divulgação científica e a universidade no YouTube: o canal Click Ciência da UFSCar
(Universidade Federal de São Carlos, 2023-12-15)
Simardel Dantas, Melina
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Kerbauy, Maria Teresa Miceli
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https://lattes.cnpq.br/4762029784021248
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https://lattes.cnpq.br/7343134610824006
In modern societies, science is basis for and social, political and economic debates and decision-making. However, we are witnessing a detachment between science and society that leads to a trust decrease in scientific research and depreciation of science. Thereby we understand that scientific dissemination is a tool for rapprochement between science and society, by sharing scientific content to a wide audience, informing, educating and including the population in discussions about science and technology. If before the press was the main source of scientific dissemination, nowadays, with digital media and social networks occupying a large part of people's lives, communicating science in the virtual environment is essential for its democratization. Scientific dissemination on YouTube has become a popular method for scientists and science enthusiasts to share their knowledge with a wide audience. Therefore, our objective is to analyse the university's open science dissemination practices by studying the Click Science channel, produced by the Open Interactivity Laboratory for Dissemination of Scientific and Technological Knowledge at the Federal University of São Carlos (Laboratório Aberto de Interatividade para Disseminação do Conhecimento Científico e Tecnológico da Universidade Federal de São Carlos - LAbI UFSCar). We studied the relationships between science and society and the characteristics of scientific communication and dissemination to contextualize the relevance of scientific popularization for both researchers and population. Sociability and socialization practices in digital media were addressed to better understand society's relationship with online communication, presenting YouTube as a scientific dissemination tool for universities. We also investigated the university's scientific dissemination practices, strategies and challenges in the digital environment through analysis of Click Ciência channel. Based on the channel playlists and on videos with the highest number of views, we focussed on content that targeted the public, seeking to understand what makes a production attractive to the audience. We understand that following and adapting to current communication trends and changes is vital for scientific dissemination and for the relationship between science and society. These transformations have been constant and variable, which requires continuous studies and research.
Desenho universal para aprendizagem e acessibilização: pesquisa ação colaborativa na formação de equipe escolar
(Universidade Federal de São Carlos, 2023-12-15)
Romano, Soraia
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Mendes, Enicéia Gonçalves
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https://lattes.cnpq.br/3897627554738983
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https://orcid.org/0000-0003-3673-0681
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https://lattes.cnpq.br/0795334188242497
Universal Design for Learning is an effective tool to enhance methods, resources, strategies and means of evaluation to facilitate the learning of all students. Schooling in diversity, here is defended as the differences present in all students to participate and learn. And thus, propagates in an incessant search for the promotion of innovative practices and in a process of transformation to make the curriculum accessible to all. The promotion of breaking down barriers in different learning spaces and flexibility, as to the ways of learning and valuing the potentiality of different students, is not yet legitimate. Based on the innovations pointed out by the literature on Universal Design for Learning, the purpose of this study is to develop, implement and evaluate a teacher training program subsidized by the DUA Principles and Guidelines with the research question about how training can contribute to the development of classes based on principles and guidelines that meet the needs of participation of all students to promote learning. As a methodology, we chose collaborative action research to constitute the training of different education professionals in reference to theory and, at the same time, collaborate for the implementation of classes focused on eight classes from 1st to 3rd year of elementary school. The study included 37 students, teachers of regular basic education, special education teachers, educational managers and professionals from the multidisciplinary team. For the data collection, different instruments were used, among them: participants' characterization sheet, class plans formulated collaboratively, lesson planning sheet, photos and videos of innovative classes, Evaluation sheet of the Training Programme and evaluation roadmap for the focus group. The training program was conducted in three meetings of three hours duration and use of different types of materials to motivate participants and obtain different forms of representation. The research had its data found submitted to content analysis with triangulation of different sources. As results, we found the adherence to the training plan implemented and classes planned based on the principles of DUA, which highlighted the use of multiple forms, especially in the principles of engagement and action and expression of different students. The principle of representation had greater resistance and the limits of the research are the lack of opportunity for the continuity of the didactic sequence and the monitoring in the medium and long term. The program was evaluated by all participants through questions with satisfaction scale and open questions for participants. It is concluded that the collaborative proposal in all educational processes present in the classroom and the school accessibility action are important for the different teams working in the school. Finally, it is directed that, for the effectiveness of the DUA in a short period, other research should be favored to apply medium and long term, as a way to ennoble scientific evidence for all modalities of teaching.
O campo da política habitacional no último desmanche: ocupações, movimentos sociais e ativismo identitário
(Universidade Federal de São Carlos, 2023-12-15)
Breda, Thalles Vichiato
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Eckardt, Frank
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https://orcid.org/0000-0002-5176-6503
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Georges, Isabel Pauline Hildegard
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https://lattes.cnpq.br/8496471825849003
This thesis aims to understand the changes in the field of Brazilian housing policy in the context of the “last dismantling”, between 2013 and 2022. It seeks to map the shifts between the conjuncture produced by the Workers' Party governments, from 2003 to 2016; and the post-coup conjuncture, between May 2016 and 2022, represented by the governments of Michel Temer and Jair Bolsonaro. The specific objectives are to understand (a) the normative and programmatic framework in the field of institutional housing policy in the post-coup period, and (b) the forms of claim by those who have no part, i.e. organized civil society, social movements, political parties, among other actors, in the struggle for access to housing and land. The hypothesis of this research is that these milestones have updated the ways in which territories of poverty are produced, the dispute over urban space, the relationship with the state and different actors, and the very concept of social housing developed during Lulism. The methodology used was based on the analysis of documents and laws; a bibliographical review; participant observation; and multi-sited and multi-scalar ethnography. Empirically, we started by analyzing the cycle of occupations in the city of São Carlos, which began in 2014 and, based on the threads tied together in the “In search of a dream” occupation, we followed the Movement of Homeless Workers (MTST) in the metropolitan region of São Paulo, through my entry into the MTST's School of Grassroots Work in 2023. Some results can be pointed out. The dismantling of institutional mechanisms for access to housing represented by the PMCMV and the June 2013 Journeys, combined with the coup d'état in 2016, paved the way for a “new urban activism”, made up of a set of collectives, networks of social movements, occupation practices aimed at fighting for the right to the city and the right to life itself. This means the production of a new constellation of initiatives, the broadening of a repertoire of struggles and forms of organization, on a new scale of action. In the context of the overlapping of conservative governments with the pandemic scenario, “emergency struggles” were established due to the historical demotion in the conditions of social reproduction. Access to housing was replaced by access to partially urbanized land. Occupations took center stage and gained new contours. The normative framework proposed for the housing field operates through a gray zone, opening the way for different non-institutional actors to act in the housing field. The actors analyzed were social movements, political parties, technical assistance, the evangelical church and organized crime. Against this backdrop, social movements in the last decade, especially the MTST, have increasingly taken up social demands, both in the field of minority rights and in the field of sustainability, labor rights, etc. Identity politics has played an important role within this urban activism, through the identity construction of a “new” historical subject of legitimate social transformation - the peripheral subject with plural demands - which slowly seems to replace the proletarian. These modulations are producing a moral market in identities. The MTST has positioned itself as an important political actor from the vacuum produced by other collective organizations, such as the trade union, and operates an arrangement between the peripheral population and the progressive sectors of the middle class, in which the conflict is reterritorialized from the urban peripheries.
Percepções sobre um projeto de inclusão digital de pessoas idosas: um estudo de caso em uma instituição de longa permanência
(Universidade Federal de São Carlos, 2023-12-15)
Barbosa, Claudia Andrea
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Pedro, Wilson José Alves
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https://lattes.cnpq.br/8135701448186851
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https://orcid.org/0000-0002-9540-7078
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https://lattes.cnpq.br/7025383709394334
This study aims to explore the understanding of how technology is used in the lives of elderly people residing in long-term care institutions. The research adopts a qualitative, exploratory, and descriptive approach, through the case study methodology. The participants are collaborators and elderly individuals aged 60 years or older, who are institutionalized and part of the digital inclusion project at the Long-Term Institution (ILPI), in the city of Ribeirão Preto, state of São Paulo, Brazil. The relevance of this research is highlighted by the global context shaped by the unprecedented challenge of the COVID-19 pandemic. SARS-CoV-2, known as the novel Coronavirus, triggered COVID-19, a highly risky infectious respiratory disease, as designated by the WHO. The pandemic had a profound impact worldwide, affecting people in various nations. The elderly proved to be particularly vulnerable to the virus. The initial response to the pandemic was marked by uncertainty due to the lack of effective treatments. The WHO recommended social distancing measures to contain the spread of the virus and relieve pressure on global health systems. Many countries imposed compulsory isolation, especially for higher-risk groups such as the elderly, suspending non-essential activities and restricting movement. This resulted in significant distancing and isolation challenges, deeply impacting people's lives. Strategies were directed to reduce this isolation, and technology played a crucial role. The adaptation of the elderly to the use of digital technologies represented an abrupt transition, requiring additional effort to familiarize themselves with these tools, aiming to preserve their safety, independence, and socialization. In this context, this study investigates digital inclusion as an essential tool in the lives of the elderly in long-term care institutions. The research contributes to the understanding of the growing importance of digital inclusion in today's society, not only promoting socialization but also being a valuable tool to face challenges, such as those experienced during the COVID-19 pandemic, and to deal with potential future difficulties. Therefore, it represents a significant step in understanding the needs and potential benefits of digital inclusion for the elderly in long-term care contexts.
Mulher na economia solidária: reflexões sobre sua participação
(Universidade Federal de São Carlos, 2023-12-15)
Oliveira, Daniela Aparecida Castro
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Zanin, Maria
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https://lattes.cnpq.br/9685965969782429
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https://orcid.org/0000-0002-5757-2910
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https://lattes.cnpq.br/8518806579302435
This Dissertation sought to broaden the understanding of the difficulties and barriers faced by women in search of economic empowerment, awareness of gender equality, sustainability and also the obstacles to female leadership, where women's participation in the solidarity economy represents an advance in the context contemporary socioeconomic, emerging as an important phenomenon, raising reflections on its transformative role, where it not only challenges traditional stereotypes, but also plays a fundamental role in promoting more inclusive and socially conscious economic dynamics. The main objective of this study was to analyze the influence of female participation in the solidarity economy, understanding how women contribute to the construction of more equitable and sustainable economic models. To this end, this study conducted a comprehensive literature review, demonstrating patterns of contributions, challenges faced and positive impacts, providing understanding about the transformative role of women in this domain and pointing to potential areas for improvement and strengthening.
Fabricação por filamento fundido de compósitos à base de policaprolactona e fibras de vidro visando aplicações de engenharia de tecidos
(Universidade Federal de São Carlos, 2023-12-15)
Augusto, Thiago de Assis
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Crovace, Murilo Camuri
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https://lattes.cnpq.br/8956458007749112
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https://orcid.org/0000-0003-2759-573X
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Costa, Lidiane Cristina
Among the fields of study in Tissue Engineering is the development of materials that present good mechanical performance, high bioactivity, and that can be processed using techniques that allow control flexibility regards architecture, such as fused filament fabrication (FFF). In this sense, the incorporation of bioactive glasses (BG) into polymer matrix is interesting, especially when they are in the form of continuous fibers (CF), filler with high reinforcing potential. Coating may be a method to prevent excessive polymer degradation during incorporating of BGs. Depending on the bioabsorption rate of the coating, it is possible to control the induction time of the bioactive effect of CFs. As a proof of concept, conventional glass CFs were coated with polycaprolactone (PCL) via extrusion. The resulting filaments, with up to 12.5% by mass of fillers, were processed via FFF. Flow modeling during FFF with CFs was developed, something not yet reported in the literature, and used to justify the quality of the printed materials. It was estimated that, with the CFs in the printing nozzle, the melt is subjected to 481 s^-1 of shear rate and 1.95 MPa/mm of pressure gradient, values three and two times greater compared to the case of neat PCL, respectively. The tensile strength of the formulation with CFs, 32 MPa, was twice as high compared to neat polymer. As part of the second front of this investigation, for the first time, PCL composites with short fibers or powder of F18 BG were produced via extrusion and FFF. This BG was chosen due to its high bioactivity and wide processing range, which allows it to be obtained in the form of fibers. F18 promoted mineralization and in vitro cellular activity. The research contributes to the development of scaffolds with interesting characteristics for biomedical applications.
Oxidação fotoeletroquímica de metanol, etileno glicol e glicerol em CdS, BiVO4 e BiVO4:Zr-Mo:Pt
(Universidade Federal de São Carlos, 2023-12-15)
Oliveira, Cristian Hessel de
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Sitta, Elton
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https://lattes.cnpq.br/4326476348284298
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https://lattes.cnpq.br/1960387014755134
The photoelectrochemical production of hydrogen (H2) from the water splitting reaction in photoelectrochemical cells is a promising alternative for the production of clean and sustainable energy. However, this process still faces some challenges, such as charge carrier recombination, photocorrosion of photoelectrodes, and slow kinetics of the oxidation reaction in the anodic compartment. By using dopants and co-catalysts, charge carrier recombination can be minimized. While the use of sacrificial agents can help to reduce the photocorrosion of the material, as well as increase the activity of the system by replacing the water oxidation reaction. In this work, the study of the oxidation reaction of different biomass-derived alcohols (methanol, ethylene glycol, and glycerol) as substitutes for the water oxidation reaction is performed, where the effect of the increase in the chain length of these alcohols (structure) with respect to the observed activity (reactivity) and inhibition of photocorrosion was investigated. CdS, BiVO4, BiVO4:Zr-Mo, and BiVO4:Zr-Mo:Pt were the photoanodes evaluated. With respect to CdS, the addition of biomass-derived alcohols to the system strongly inhibited the photocorrosion of the material. The use of dopants and co-catalysts in the BiVO4 photoanode increased the activity of the system for photoelectrochemical oxidation, due to the increased light absorption and the decrease in recombination between the charge carriers. And, regardless of the semiconductor, larger photoelectrochemical oxidation currents densities were observed in the presence of biomass-derived alcohols than only in water and, among the alcohols studied, the order of activity was: jMethanol < jEt.Glycol < jGlycerol < jSulfide, indicating that these alcohols act as hole scavengers and the increase in the number of [COH] groups seem to have a positive effect on increasing the activity of the system.
A promoção do engajamento das famílias no Programa Criança Feliz
(Universidade Federal de São Carlos, 2023-12-15)
Marini, Bruna Pereira Ricci
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Della Barba, Patrícia Carla de Souza
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https://lattes.cnpq.br/6448489426438006
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https://orcid.org/0000-0002-7893-8133
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https://lattes.cnpq.br/2001819857612181
Strategies for care and promotion of childhood development have evolved substantially over the last century. In this context, Early Intervention with a Family-Centered Approach has emerged in terms of effectiveness, evidence-based and quality interventions, taking part in the list of those currently recognized as recommended practices. Studies have shown that the engagement of families is a decisive component to achieve the expected results in this care model, since they are expected to participate and strengthen their knowledge, skills and beliefs of self-efficacy in caring for children. Despite its importance, this is still a briefly studied element. In Brazil, the launch of the Programa Criança Feliz (Happy Child Program) produced an approximation with this intervention model; however, its results are still measured only by the outcome in children. Thus, this study aims to elucidate the strategies adopted in Programa Criança Feliz, a program of home visits with an approach to promote the engagement of families with children up to six years old, with disabilities and/or exposed to a situation of vulnerability and social risk. This is a cross-sectional, descriptive and exploratory study, with a qualitative approach, developed in four steps. Step 1: analysis of the incorporation of strategies aimed at family engagement in the decrees, ordinances and theoretical instruments that build up the reference for the training of visitors; Step 2: exploratory study with coordinators and supervisors of Programa Criança Feliz; Step 3: exploratory study with visitors from Programa Criança Feliz; Step 4: exploratory study with families part of Programa Criança Feliz. The sample was selected in a non-probabilistic way and for convenience, being composed of two coordinators, three supervisors, seven visitors and five families who take part in Programa Criança Feliz in the municipalities belonging to the Regional Direction of Social Assistance and Development of Araraquara, state of São Paulo. nData from the first step of the study was collected from documents and materials that support the training of program visitors. In the second, third and fourth steps, data collection was carried out through semi-structured interviews with coordinators, supervisors, visitors and families. Data analysis was carried out using the content analysis technique, in thematic analysis mode. The results of the study allowed us to verify that family engagement is a construct approached indirectly in the context of the Programa Criança Feliz, since there is little evidence on how it is promoted and how it impacts on other actions developed. Aspects related to the structure and implementation of the program were identified as producing negative impacts on engagement, as well as social vulnerability and its consequences on family conditions. Even so, elements were identified that favor and direct the outcomes of behavioral, cognitive and emotional involvement that build up the motivational structure of engagement, in addition to relational practices that were considered of great importance for this process. Thus, the study points out that there are still gaps in the Programa Criança Feliz proposal, which are related not only to the conditions of engagement, but to previous issues, such as the need to strengthen policies that focus on guaranteeing fundamental rights, aimed at strengthening families' care conditions for their children.
Do desejo ao conflito: a trajetória de uma professora na ressignificação de abordagem no ensino de língua inglesa em contexto de Instituto Federal
(Universidade Federal de São Carlos, 2023-12-15)
Lopes, Jaqueline
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Barçante, Magali
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https://lattes.cnpq.br/1338327810450472
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Barbirato, Rita de Cassia
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https://lattes.cnpq.br/6962819573963727
This study primarily investigates the trajectory of a teacher-researcher in the process of changing her approach while designing and teaching English using an instructional material with focus on meaning for students majoring in Mathematics at a professional and technological educational institution. To achieve this, a needs analysis of the learning needs of the mathematics students was carried out. After, an instructional material was developed, and then implemented. This is a qualitative, exploratory, and interventionist study conducted with the participation of a teacher-researcher and students at a campus of the Federal Institute of São Paulo, in an English course for a Mathematics degree. The course was delivered remotely due to the restrictions imposed by Covid-19. Instruments for data generation and collection were the following: the instructional material, questionnaires, interviews, the teacher-researcher's diaries, recordings of meetings between the teacher-researcher and her research advisor, recorded lessons, and the chat logs from these lessons. Data analysis was carried out through triangulation and content analysis to categorize the data. Thus, this study aimed at understanding the teacher-researcher's process of changing her approach in three aspects: (i) how the teacher-researcher's trajectory was characterized; (ii) how the teacher-researcher materialized the desired (communicative) approach in the instructional materials developed; and (iii) how the realized approach during teaching with the materials was characterized. In this sense, the theoretical framework that guides this research addresses the concept of approach in language teaching (Anthony, 1963; Richards; Rodgers, 1982; Prabhu, 1987; Allwright, 1991; Almeida Filho, 1997), discusses the Global Operation Model of Language Teaching (OGEL) and its relation to the change in teaching approach (Almeida Filho, 1993, 2012, 2015, 2018a, 2023). Also, it brings insights about grammar and communicative approach and teaching practices aligned with these paradigms (Almeida Filho, 2001, 1993, 2012, 2015, 2018b; Brown, 2015; Freitas, 2013; Gomes, 2016a, 2016b; Richards; Rodgers, 2014; Vieira-Abrahão, 2015). In addition, it discusses communicative language teaching (Almeida Filho, 2000, 2015; Almeida Filho; Barbirato, 2000; Barbirato, 1999, 2005; Brown, 1994, 2015; Littlewood, 2013; Richards; Rodgers, 2014; Xavier, 2016) as well as thematic planning (Brinton; Snow, 2019; Brown, 2015; Byrnes, 2005; Crandall, 1994; Dueñas, 2004; Richards; Rodgers, 2014). The results revealed that the teacher-researcher's process of changing her approach was complex and non-linear. It was also evident that distinctive features of the communicative approach were incorporated into the instructional materials, such as a focus on meaning and meaningful activities for the learners. Finally, it was observed that the teaching with the materials was influenced by two approaches: the one represented by the instructional materials and the one declared by the teacher-researcher.
Definição, dimensões e fatores moderadores do engajamento: validação de instrumentos de pesquisa multidimensionais
(Universidade Federal de São Carlos, 2023-12-18)
Kortz, Bruno José Viana
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Piato, Éderson Luiz
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https://lattes.cnpq.br/1439984077907071
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https://orcid.org/0000-0002-6403-3288
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https://lattes.cnpq.br/1995668463248245
The term 'engagement' initially conveys commitment between two parties, particularly in its origins, where 'engagement' represents the commitment between betrothed individuals at the moment of marriage. However, the concept of engagement is addressed in various fields of knowledge, such as psychology and applied social sciences, when referring to political and social engagement. In recent years, this concept has gained prominence among managers and academics, especially after its association with behaviors exhibited by social media users. However, its theoretical meaning and practical application are not yet well-established. Consequently, this research aims to analyze the meaning of engagement by identifying the moderating factors influencing its level across various dimensions in a business context. To achieve this objective, we conducted a systematic literature review and bibliometric analysis of 688 articles from the Scopus and Web of Science databases, aiming to comprehend the term in the context of business and its applicability. The findings revealed a lack of consensus regarding the theoretical definition, a scarcity of relevant empirical studies on its measurement, and primarily, the existence of distinct dimensions of engagement within the business context, particularly focusing on customer engagement, employee engagement, and organizational engagement. Subsequently, two research instruments were devised for customer and employee dimensions, alongside the development of an instrument based on theoretical review for the organizational dimension. These instruments underwent a four-stage validation process involving ten expert judges from the research field who are actively involved in professional practice. These experts contributed to the cultural and practical adaptations of the instruments for their application in the national context, utilizing the Content Validation Coefficient (CVC) for quantitative validation of the collected data. The validated instruments hold the potential to contribute to measuring the level of engagement across different organizational dimensions and empirically validating the concept within the national context. From an academic standpoint, the research provided a theoretical definition of engagement in the business context and proposed a new theoretical concept: engagement orientation. From a practical perspective, the research offered a definition and clarification of what engagement entails and how to strategically investigate it, aiming for superior organizational performance. Furthermore, the research opens numerous avenues for studying each dimension of engagement and its potential correlations. It also brings forth significant social contributions, as organizations, by understanding the benefits of engaged stakeholders, can strategically and practically address social and sustainable issues, ultimately aiming for a better perception of their performance
Otimização da eletro-oxidação controlada de metano sobre a superfície de eletrodos de ouro visando a formação de moléculas de valor agregado
(Universidade Federal de São Carlos, 2023-12-18)
Andrade, Renato Nunes de
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Oliveira, Cauê Ribeiro de
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https://lattes.cnpq.br/5321313558714462
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https://lattes.cnpq.br/9933821460129238
OPTIMIZATION OF THE CONTROLLED ELECTROOXIDATION OF METHANE ON THE SURFACE OF GOLD ELECTRODIES FOR THE FORMATION OF VALUE-ADDED MOULECULES: This work aims to contribute to the understanding of the partial electrooxidation of methane to methanol. The challenge of this proposal is the unfavorable reaction kinetics of this hydrocarbon in oxidizing due to its tetrahedral and non-polar molecular geometry. These factors make it difficult to break the carbon-hydrogen bond to form methyl radicals followed by the addition of oxygen, and another aspect is the molecule's low solubility in water. The most common process for obtaining methanol is by reforming methane, which requires high temperatures (700 to 1100 ºC). However, electrocatalyst systems are a promising alternative, given their ability to do this under milder conditions (25 ºC and 1 atm). In this thesis, an H-shaped electrochemical cell system was used to collect data by varying the pH, type of electrolyte, concentration and cell potential in order to create a data set that could predict, using linear and polynomial regression algorithms and support vector machines, which condition would be the most favorable for methanol production on the gold electrodes surface. In this sense, 0.1 M lithium carbonate at a potential of 0.2 V vs. Ag|AgCl and 0.1 M potassium hydroxide at a potential of 1.0 V vs. Ag|AgCl were the most promising production systems. Furthermore, the literature has always credited potential and pH as determining factors in the selectivity of electrochemical reactions, but this study shows that the radius of the cation in the selected material plays a much more important role in the electrooxidation of methane to methanol. Finally, this is a technology that can be developed in synergy with the already prestigious green hydrogen (GH2), which uses renewable or clean energy, through photoelectrocatalysis of solar energy. However, the advantage of methanol is that it is easy to store as it is a liquid, rather than an explosive gas like H2(g).
Estudo do impacto da consideração de custos de emissão de CO2 nas decisões de planejamento e roteamento de veículos de uma fábrica de móveis
(Universidade Federal de São Carlos, 2023-12-18)
Moraes, Felipe Goulart
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Ferreira, Deisemara
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https://lattes.cnpq.br/0245267028273903
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https://lattes.cnpq.br/6874387409220161
At the same time that the competitive scenario is seen in organizations, which seek to maximize profits and consumer satisfaction, there are also global concerns about increasing productivity and its impact on the environment, such as the emission of greenhouse gases, mainly CO2. To assist in decision-making and achieve reduction of economic and environmental costs, linear modeling and optimization techniques can be adopted and implemented. Through these techniques this dissertation aims to study the problem of integrated production planning and vehicle routing considering the impacts of reducing carbon emissions in furniture industries. The consideration of carbon emissions is linked to vehicle fuel emissions and applying this view brings a more realistic scenario as it considers the load transported in vehicles and speeds. Through experiments will be analyzed the gains from considering the unloading of vehicles, the speed selection that the vehicle adopts and how much the inclusion of carbon costs can affect the trade off between production and routing. An additional model was also developed that considers a heterogeneous fleet in relation to CO2 potential emission
Uma infraestrutura computacional para a identificação de estudantes universitários com possível perfil depressivo usando dados de sensores móveis
(Universidade Federal de São Carlos, 2023-12-18)
Saud, Conrado
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Neris, Vânia Paula de Almeida
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https://lattes.cnpq.br/0268728255033469
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https://orcid.org/0000-0002-4059-8700
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https://lattes.cnpq.br/5627511338826522
Depression, one of the most prevalent mental disorders, significantly impacts the lives of millions worldwide. This mental disorder not only causes severe health problems but also negatively interferes with the lives of those who suffer from it, many of whom do not seek treatment. In the university population, the prevalence of depression is even higher than in the general population. This work proposes a computing infrastructure that uses digital phenotyping data collected by mobile and wearable sensors, such as smartphones and smartwatches, to identify Brazilian university students with a possible depressive profile (PPD). Adopting the Design Science Research (DSR) methodology, the study develops a computational solution whose effectiveness is validated through a descriptive exploratory analysis of the collected data. This approach seeks not only to validate the feasibility of the proposed infrastructure but also to facilitate the identification of behavioral patterns associated with the PPD. The approach includes the use of the "Human in the Loop" method for removing data outliers and employs the t-SNE (t-distributed Stochastic Neighbor Embedding) technique for reducing high-dimensional data and identifying patterns in interpreting the results. This work aligns with the principles of Human-Computer Interaction (HCI) intending to contribute to the areas of mental health and computing.
Programa de estágio "aprender sem limites" sob a ótica de estagiários: contribuições para a educação especial
(Universidade Federal de São Carlos, 2023-12-18)
Rentz, Karina Leite
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Rangni, Rosemeire de Araújo
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https://lattes.cnpq.br/6399149504309769
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https://orcid.org/0000-0002-8752-9745
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https://lattes.cnpq.br/7425720626384806
The “Aprender sem Limites” program, the object of this study, was created by the São Paulo Municipal Education System in 2016. It provides support to Pedagogy student interns whose objective is to monitor, evaluate and support the Special Education students, through planning and guidance from the teacher in charge of the common class and other school spaces. Thus, the present research had the general objective of understanding relevant aspects to the training of undergraduate interns in Pedagogy of the “Aprender sem Limites” Program. The specific objectives were: a) to understand the facilities and difficulties related to the interns’ performance in relation to the Special Education students, the training offered and its concepts; b) to verify whether or not the Program provide Inclusive Education, and c) to map the expectations and preparation of interns for their future professional performance. To this end, it was a descriptive and exploratory research. A questionnaire carried out via Google Forms platform to a total of 117 interns. The questionnaires were analyzed semantically by judges. The majority of participants took courses related to Special Education, with an emphasis on Libras. Their motivations in the internship program were: professional experience, learning and the salary grant. It was found that most of them worked in Early childhood education internships and indicated that the monitoring was carried out by pedagogical guidance supervision. The majority of interns answered that there were no other training meetings besides the monthly meetings. Regarding the aspects to be improved in the program, they pointed out: environment space, teaching material and initial and continuing training. It was evident that programs such as “Aprender sem Limites” play a crucial role in preparing future educators for the challenges of teaching practice.
Intervenção online sobre habilidades sociais para mães de crianças com TEA
(Universidade Federal de São Carlos, 2023-12-18)
Silva, Letícia Thays Bessa
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Lourenço, Gerusa Ferreira
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https://lattes.cnpq.br/1474728505225459
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https://orcid.org/0000-0002-7550-4858
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https://lattes.cnpq.br/3149042741860436
The Autism Spectrum Disorder (ASD) impacts both diagnosed children and their families significantly. Domains frequently affected include communication, social interaction, and restrictive and repetitive patterns of interests or activities. These patterns manifest before school age and may result in deficits in various areas of development. This study suggests that an online intervention aimed at teaching social skills may bring significant benefits to mothers of children with ASD. This can result in improvements in knowledge about ASD, increased confidence in their parenting skills, and substantial improvement in family interactions. The proposed online approach has the advantage of being accessible, overcoming geographical and logistical barriers. This is particularly relevant in contexts where resources for in-person intervention may be limited, making research an effective way to explore accessible and effective options. This study seeks to fill a gap in research and provide empirical evidence on a specific online intervention for mothers of children with ASD. The research was designed as an intervention study. By focusing on mothers and their parenting skills, this study acknowledges the importance of a supportive and understanding environment for mothers of children with ASD. The overall objective is to analyze an online intervention on social skills for mothers of children with ASD. The specific objectives of this study are: to describe common needs of mothers of children with ASD; to analyze the frequency of co-occurrence of social skills classes and themes in intervention sessions; to analyze the social validity of the intervention; and to analyze the secondary effects of the intervention on children's Social Skills repertoire. The participant sample was non-probabilistic, convenience type, with the participation of six mothers. The instruments used were: Identification Form; Brazil Economic Classification Criterion; Social Skills, Behavior Problems, and Academic Competence Inventory for Children; Social Validation Questionnaire; and Follow-up Questionnaire with mothers. Data collection involved conducting six individual training sessions with each mother, during which the researcher provided guidance on personalized strategies for each child. Additionally, it included sending support materials and continuous feedback through an instant messaging application. Records were made from the application of the instruments: researcher's field diaries, recording of all meetings held, materials, and videos shared by the mothers. For analysis, there was tabulation of specific results per instrument and descriptive data, organized thematically. ATLAS TI software was used for data analysis. The results of the Social Skills, Behavior Problems, and Academic Competence Inventory for Children indicate that there were changes in the classification of children's social skills based on the intervention conducted with the mothers. Thematic analysis occurred, which allowed dialogue with the theoretical framework in four themes: mothers' need for guidance on how to mediate interaction with peers; improving the family-school relationship; difficulty controlling children's screen time; and difficulty reporting what happened at school. The results of the ATLAS TI software indicate that "communication" was the most cited skill and "affection/cooperation" the least cited. It was evident that there is less co-occurrence between "responsibility" and "making and maintaining friendships" and "responsibility" and "affection/cooperation", with greater co-occurrence between "communication" and "social poise", as well as between "communication" and "interpersonal problem solving". Thus, the data obtained meet the proposed objectives, manage to indicate positive aspects of the proposed short-term online intervention, especially from the mothers' discourse and the results of social validation, and suggest that future research be conducted.
Previsão de variáveis climáticas e classificação de risco de incêndios florestais no Pantanal brasileiro
(Universidade Federal de São Carlos, 2023-12-19)
Zamith Santos, Bruna
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Cerri, Ricardo
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https://lattes.cnpq.br/6266519868438512
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https://lattes.cnpq.br/3805045333740740
The Pantanal biome is of inestimable ecological importance, mainly due to its fauna and flora. However, this biome is constantly threatened by the occurrence and recurrence of forest fires, which are strongly associated with the regions climatic conditions. Thus, methods for forecasting and classifying forest fire risk are essential for forest fire prevention and firefighting planning in the Brazilian Pantanal region. The main fire risk indexes known in the literature have limitations, such as (1) not adjusting to the characteristics of each biome; (2) being limited to specific climatic variables; (3) not being able to predict forest fire risk for a given number of days. This last aspect, in particular, is of utmost relevance. Addressing it allows for coordinated planning and action by environmental authorities with adequate anticipation. Aiming to solve this problem, this study developed a software capable of: (1) Climatic variables forecasting for a given number of days; and (2) Forest fire risk classification in the Brazilian Pantanal. For the first objective, different time series prediction algorithms based on Machine Learning (ML) were tested for climactic variables forecasting. This prediction is used as input for the second objective, for which different classification algorithms, also based on ML, were tested. Such software was then improved from a exhaustive hyperparameters search approach to two different Genetic Algorithms (GAs) approaches: Traditional and NSGA-II. Results for both software versions were evaluated based on the average correlation between forest fire risk classes and hotspots' observation. The exhaustive search version demonstrated that the software can outperform the main statistical forest fire indexes regarding "Null", "Low", "High" and "Very High" classes. When it comes to the GA version, the software was competitive to the forest fire indexes, still with the advantage of being able to predict the forest fire risk for a given number of days.
Participação dos neurônios orexinérgicos na resposta ventilatória ao CO2
(Universidade Federal de São Carlos, 2023-12-19)
Silva, Eliandra Nunes da
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Horta-Júnior, José de Anchieta de Castro e
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https://lattes.cnpq.br/2577584360099382
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https://orcid.org/0000-0003-3639-9861
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Dias, Mirela Barros
Orexinergic (OX) neurons, through the release of orexins, modulate several functions including sleep- wakefulness states and central chemoreception. OX receptors are expressed in regions involved in the control and modulation of the ventilatory response to CO2, such as the nucleus of the solitary tract (NTS) and the peduncle pontine tegmental nucleus (PPTg). In this study, we tested the hypothesis that orexinergic neurons stimulate the commissural nucleus of solitary tract (cNTS) and PPTg during central chemoreflex activation. Using a whole-body plethysmography system, our objective was to evaluate the ventilatory response to CO2 in Wistar rats during microdialysis of the OX-1R antagonist SB-334867 (5 mM) in the cNTS and PPTg. The experiments were carried out during the light and dark phases of diurnal cycle, and the microdialysis protocols in the cNTS were performed as follow: (1) hyperoxic normocapnia (0% CO2, 93% O2) and (2) hyperoxic hypercapnia (7% CO2, 93% or 50% O2), and microdialysis protocols in PPTg in: (1) normoxic normocapnia and (2) normoxic hypercapnia (7% CO2). We observed that OX-1R antagonism in NTSc and in NTgPP caused a significant attenuation in CO2 ventilatory responses compared to vehicle during wakefulness in the light phase of the diurnal cycle. Thus, our data suggest that orexinergic signaling contributes, via OX-1R in NTSc and NTgPP, to hypercapnic chemoreflex control during wakefulness in the light phase of the diurnal cycle.