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Detecção e classificação automáticas de alterações estruturais cerebrais em imagens de ressonância magnética para o auxílio ao diagnóstico do Alzheimer
(Universidade Federal de São Carlos, 2021-09-21)
Poloni, Katia Maria
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Ferrari, Ricardo José
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https://lattes.cnpq.br/8460861175344306
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https://lattes.cnpq.br/8456178776986505
Alzheimer's disease is a progressive and irreversible neurodegenerative condition with development characterized by asymmetrical brain atrophies. Across life, due to neuronal aging, a cognitively healthy brain presents structural changes. However, with the development of the Alzheimer's, these changes are more accentuated, being less intensive in the prodromal stage of Alzheimer's, known as mild cognitive impairment, and more pronounced as the disease progresses. In this research, we developed three approaches to aid in diagnosing patients with mild cognitive impairment and mild Alzheimer's disease, each of which analyzed distinct and complementary properties related to the disease, namely asymmetry, atrophy, and biological brain aging. In addition, we combined and tested the approaches to measure impact on outcomes. In the analysis of structural asymmetries, we extracted multi-scale attributes of the hippocampal regions and created an asymmetry index. We obtained classification results comparable to other studies focused on the hippocampal regions, and the created asymmetry index showed statistically significant results consistent with the medical literature. In the analysis of structural atrophies, we automatically selected and classify discriminative landmark points between populations. Next, we classify the images based on a quantitative assessment obtained from the results of the landmark points. The obtained image classification results surpassed many studies published in the literature and are comparable to others. In the analysis of the biological aging of the brain, we developed an age estimation model using deep learning and images of cognitively normal patients with the same age range as patients with mild cognitive impairment and mild Alzheimer's disease. The age estimation error between the groups showed statistically significant results and presented a significant correlation with the Mini-Mental State Examination clinical test. The estimation results were competitive among existing studies, but the classification results were below expectations. Finally, combining the first two approaches brought positive contributions to the results, with up to 3% gains in AUC.
Singularly nonautonomous semilinear evolution equations with almost sectorial operators
(Universidade Federal de São Carlos, 2021-09-21)
Belluzi, Maykel Boldrin
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Nascimento, Marcelo José Dias
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https://lattes.cnpq.br/7133572787875912
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Schiabel, Karina
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https://lattes.cnpq.br/2677541143976758
A great variety of phenomena that happens in nature relies on the theory of differential equations to be properly modeled and explained. In this work we focus on a specific class of partial differential equations named singularly nonautonomous semilinear evolution equations with almost sectorial operator, and we provide solution and study the asymptotic dynamics for this type of equation. The abstract model considered is given by u_t +A(t) u = F(u), t > s, where A(t), t a real number, is a family of closed linear operators defined on a fixed dense subspace D and F is a nonlinearity. The term singularly nonautonomous is used to express the fact that the linear operator A(t) is time-dependent and the term almost sectorial comes from a deficiency in the resolvent estimate for those operators. The motivation to consider this type of problem comes from the fact that, when a problem is being modeled, it is natural to expect variations with time in the linear operator. A situation in which the linear operator is time-dependent could be, for instance, the diffusion in a medium that is affected by the season of the year or time of the day. Moreover, almost sectorial operators naturally emerge in applications involving domains with a handle, which we explore in this work. For this semilinear problem in the abstract setting we study local well-posedness, regularity properties of the solution, global well-posedness and existence of pullback attractor. In order to obtain those results, we introduce the concepts of semigroups and linear proceses of growth 1- associated to almost sectorial operators A(t) and we present several of their properties. They play an essential role in the construction of the local solution as well as in the study of the regularity properties of the solution. As far as the long-time dynamics of the problem, the fact that A(t) is time-dependent prevented us to use the classical approaches to obtain global estimates for parabolic problems. To overcome this setback, we developed an iterative method that allows one to obtain estimates of the solution in the spaces Lˆ{2ˆk} for any natural number k. To illustrate the results and ideas developed, the abstract theory is intercalated with an application of it to a singularly nonautonomous reaction-diffusion equation in domain with a handle. This type of domain consists in two open subsets in R^{N} connected by a line segment R_0 and the family of linear operators associated to this type of problem belongs to the class of almost sectorial operators. In physical terms, this problem could model, for instance, two isolated tanks (the open subsets in R^{N}), at certain temperature distribution, to which we attach a cable (R_0) connecting them, and it might be of interest to determine how the heat flow occurs in this new domain, formed by the two open sets and the line segment. With the abstract theory developed in this work, semilinear evolutions equations with time-dependent almost sectorial operators can be analyzed in terms of existence of local/global well-posedness, regularity properties of those solutions and existence of compact attracting sets that captures the long-time dynamics of the problem. Moreover the iterative method developed to obtain global estimates of the solutions is quiet general and can be adapted to others second order parabolic equations in the divergent form.
Metodologias ativas: potencialidades e limitações na percepção de professores da educação básica
(Universidade Federal de São Carlos, 2021-09-22)
Ferreira, Sergio Daniel
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Mill, Daniel Ribeiro Silva
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https://lattes.cnpq.br/1515286597269486
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https://lattes.cnpq.br/6492296303212540
Active learning methodologies have gained increasing visibility in discussions about education with regard to increasing student engagement, whether from the perspective of working from problem situations or by projects. Linked to these methodologies, many nomenclatures such as PBL (Problem Based Learning), Active and Student-Centered Learning, Case-Based Learning, Maker Movement and other derivations, have appeared as potential solutions for teaching practices in schools in the sense of connecting curriculum and to foster interdisciplinarity, student protagonism and learning through group work. Considering that the protagonism or engagement of young people in the school environment provides an amalgamation that connects them to teachers and the school, and at the same time it can provide greater autonomy from problem situations that require these young people to critically analyze and take action. decision, it is glimpsed that such methodologies can help in the construction of educational practices that are seductive to the eyes of students, without giving up systematized knowledge. From this perspective, the potential and limitations of active methodologies are discussed in the view of a group of basic education teachers – Elementary Education II, from schools accredited to the Integral Education Program (PEI) of the State of São Paulo, having as cut out the electives. With these questions, we anchored our research in schools belonging to PEI through a social project called Tetear Tech, aimed at creating a space for dialogue and learning involving art and technology as a way to expand the repertoire of students. The social project connected four schools in Piracicaba-SP, offering training workshops embedded in active methodologies. In addition to this pedagogical intervention process, there was the elaboration of a Thesaurus of its own, with the choice of keywords for the search for academic papers on active methodologies, in order to try to understand the academic production on this topic in the field of education in Brazil. For this survey, we used the theses bank of graduate programs in education with grades of 5-7 from the Coordination for the Improvement of Higher Education Personnel (Capes), mapped by Grupo Horizonte (Study and Research Group of UFSCar), and the works published on the SciELO platform. The material collected, organized, and presented in this research showed an increase in the number of works produced on active methodologies, mainly directed to higher education in the area of health and graduation in medicine and nursing; however, there is no significant academic production focused on basic education. In the intervention research carried out, the teachers involved in the process were optimistic and inclined to incorporate new methods and/or approaches involving practices related to active methodologies in their classroom planning and practices. However, these professionals have little contact with activities linked to active methodologies and space for continuing education for discussion and sharing of good practices.
De outros ratos e outras humanidades: uma etnografia das relações entre ratos e humanos nas aldeias Guarani-Mbya no Jaraguá (São Paulo/SP)
(Universidade Federal de São Carlos, 2021-09-22)
Silva Santos, Bruno
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Vander Velden, Felipe Ferreira
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https://lattes.cnpq.br/7289231173735671
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https://lattes.cnpq.br/1205818723139620
The presence of companion and domestic animals in the daily life of Amerindian societies has been described and analyzed by a growing anthropological bibliography, and also aroused the interest of ethnologists working with the Guarani people. These works highlight the central role of animals in hunting practices, mythological narratives, cosmological categories and in the production of personhood in the Guarani-Mbya society. In contrast, there is scant information and discussion about the so-called commensal or synanthropic creatures, such as small rodents (rats), which coexist with the Guarani-Mbya people. This is a matter as crucial as it is neglected by anthropologists, considering that many indigenous villages, such as the villages in the Jaraguá Indigenous Land (São Paulo/SP), are close to urban and peri-urban areas – where rats are, as we know, a crowd. In this sense, the aim of this dissertation is to present an ethnography about the relations between the Guarani-Mbya people and commensal rats in the Jaraguá Indigenous Land, and to understand the way in which this people perceive, know, classify and relate to these beings. This work is particularly dedicated to understand the relations between rats, indigenous and non-indigenous through the sharp Guarani-Mbya criticism toward the whites’ way of living – which is described both in relation to my interlocutors' distrust of the epidemiology of zoonosis, and from the indigenous criticism toward the predatory potential of urban-industrial society. At the end, I argued that such indigenous criticism can be understood in relation with some Amerindian cosmological categories and mythical themes – showing how, from the Guarani-Mbya point of view, other rats and other humans inhabit big cities.
Drivers ou limitadores da gestão de operações de PD&I? uma proposta de caracterização para institutos e centros de pesquisa e tecnologia
(Universidade Federal de São Carlos, 2021-09-22)
Moreno, Marina Gomes Murta
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Silva, Sérgio Luis da
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https://lattes.cnpq.br/4164265591178698
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https://lattes.cnpq.br/9377432263248172
The literature lacks details on how research and technology organizations (RTOs) of innovation systems in formation can coordinate resources, processes and practices, directing them to improve performance and competitiveness. In this thesis, concepts about success factors, challenges and managerial constraints are unfolded to elaborate an analysis model of Research, Development and Innovation (RD&I) operations management dynamics in Brazilian RTOs for the characterization of factors (drivers and constraints) that affect it. Its constructs are based on: i) operational components, managerial dimensions and articulations, representative of theirs specificities, systematically collected from specialized literature focused on the study objects, from the theory on complex adaptive systems and from contributions of an exploratory case study conducted in an university center of research and technology; and ii) propositions about relations that are established between managerial dimensions and articulations present in the operational dynamics of RD&I. They were verified by means of a detailed application, in a case study conducted in a research and technology institute of São Paulo, proving to be viable to the understanding proposed in the context studied, with considerations about its aspects that can be improved and that may be increased by new applications. This thesis raises up some recommendations and reflections for the strengthening of intra and inter-institutional articulations effectiveness for the cases conducted, confirming the usefulness and the originality of the model for the characterization of factors that affect the management of RD&I operations in RTOs.
A "nova" direita brasileira: um estudo do mercado político no pós-impeachment
(Universidade Federal de São Carlos, 2021-09-22)
Vieira, Aiane de Oliveira
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Iasulaitis, Sylvia
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https://lattes.cnpq.br/4226275371443693
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Casalecchi, Gabriel Avila
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https://lattes.cnpq.br/9759794253878555
Brazil registered between the implementation of the Real Plan in 1994 and 2012 significative results in all its socioeconomic indexes. The country seemed to be going toward modernization, cultural change, the consolidation of its democratic system as well as human empowerment. This path, nonetheless, was interrupted and since 2013 the country has faced political, social, cultural, economic and institutional crises, which not only damaged the image of the government and its political institutions, but also stimulated the emergence of political groups that identify themselves with what the literature has called an “extreme” or a “new” right. The reasons that promoted the emergence of this radical right worldwide and, more specifically in Brazil, are multiple and evolve economic, political and cultural issues. To understand this phenomenon, it is necessary to look into the various actors involved in this dynamic: voters (demand), political elites (supply) and the media, more specifically, social media as an intermediary between demand and supply. That said, we aim to identify the profile of those voters who support the “new” right’s rhetoric, expressed mostly on Jair Bolsonaro, based on socioeconomic and demographic elements; and cultural values such as authoritarianism, law and order, tradition and stability, nationalism and intolerance to groups considered minorities. Second, we want to comprehend the dynamics of the use of social media in the political scene. We aim to understand how they may have contributed to shape voters’ values and perceptions. Thus, our research question is: Who is the Brazilian “new” right and how it built itself through social media? Our hypothesis is that Bolsonaro’s voters are more inclined to cultivate attitudes aligned with those other extreme right movements worldwide. Additionally, we believe those attitudes are reinforced among those who consume more online content. In order to achieve our goals, we use the 2018/2019 America’s Barometer survey data base. Firstly, we build a digital activism index and identify the share of the electorate that identifies with the political figure of Jair Bolsonaro. Secondly, we build four models to measure behavior considered authoritarian, such as: supporting coups when there is too much crime as well as corruption and supporting the closure of the National Congress and the Supreme Court. Lastly, we analyze the relationship among the use of social media, vote in Jair Bolsonaro and authoritarian behavior. The results show that Bolsonaro’s voters are more inclined to cultivate authoritarian behavior and, those who are more active on social media seem to present even stronger authoritarian characteristics.
Metodologia ativa: o ensino-aprendizagem de sequências numéricas no Ensino Médio
(Universidade Federal de São Carlos, 2021-09-22)
Silva, Gustavo Bueno
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Oliveira, Paulo César
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https://lattes.cnpq.br/7516513469811353
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https://lattes.cnpq.br/1341890922077270
Debating different ways of teaching has been important in recent years, especially with the new high school. Turn the environment school more attractive, near to your daily life is a subject of study of active methodologies. In this research, we created a historical line, from the middle twentieth century to the present time, where hybrid teaching is discussed. We search to show that small movements, gradually taking the teacher from the center of attention to the students, can make them more interested, given the contextualization of problems in the environment in which they live. We focus on study about Arithmetic Progression and Geometric Progression for the use of the flipped classroom, with 1st year high school students from a private school, located in the city of Sorocaba-SP. For the application of the flipped classroom, videos by myself and by teachers from the education system to which the school belonged were used. With the Covid-19 pandemic, changes were made to the activities to be applied, causing changes in discussions and in the quantity of activities delivered. Using information from students who made the activities, we will be able to insert active methods in schools, gradually and discussed with the teachers, management team, family and students. As an expected result, the teacher-researcher through strengths and improvement of this methodology, as well as implications for student learning.
Atropelamento de fauna: divulgando a ciência
(Universidade Federal de São Carlos, 2021-09-23)
Matsushige, Helena
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Sanches, Alexandra
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https://lattes.cnpq.br/4999886032379825
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https://lattes.cnpq.br/5349590379631024
It’s understood by scientific divulgation the process of dissemination of scientific knowledge through the use of simple language, understandable to the uninitiated people in science. Furthermore, scientific popularization aims to make science popular, that is, tangible to the population. Science provides to the citizens useful knowledge to decision making in daily life. The Internet is currently a powerful means of communication, being an important diffuser of information. Regarding fauna roadkill, it’s known by literature that one of the most important reasons of accidents is lack of conscience. Being some drivers imprudent and others ignorant about the consequences of this act. This thesis was formed by the realization of initial questionnaire about the topic “Faunal Roadkill” and divulgation of scientific results on the theme. That took place throughout the most used virtual means of communication of those voluntaries. The questionnaire applied made possible to characterize the profile of the participants, who are in their majority from the state of São Paulo, are at least studying at university, transit daily or weekly through roads, and prefer Instagram, which was the social media selected to divulgate the scientific information. Those drivers are between 27 and 43 years old, have license to drive a car and are not professional drivers. The questions about the topic show that the public has knowledge about public policies, which implemented have the potential to decrease roadkill. However, they ignore the measures which each citizen individually can apply to reduce those impacts and their effects in the ecosystem. Based on this identify lack of knowledge, divulgation was carried on, and a second questionnaire (post scientific divulgation) was posted on the same account on Instagram, targeting the evaluation of the efficiency of the data disclosed. On this second questionnaire there were not enough answers (post scientific divulgation) to elaborate a comparison of the efficiency of the scientific divulgation, probably because Instagram was not used efficiently to do the divulgation. For further studies, it is recommended a more dynamic use of social media, exploring more the tools of this resource. Despite the failure of the evaluation of the efficiency of scientific divulgation (second questionnaire), the methodology adopted on the first questionnaire was an efficient tool, making possible an evaluation of knowledge about specific themes, making possible the planning of the divulgation of information and results of scientific research, and also the clarification of some themes on the topic.
Perspectivas do desenvolvimento e utilização de ambientes virtuais em game engine para ergonomia
(Universidade Federal de São Carlos, 2021-09-23)
Paravizo, Esdras
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Braatz, Daniel
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https://lattes.cnpq.br/5287608431146025
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Silva, Sérgio Luis
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https://lattes.cnpq.br/4164265591178698
As the popularization of innovative digital technologies consolidates, new possibilities emerge for their use in diverse contexts, including in research and teaching situations. This is the context of Game Engines (GEs) - digital tools commonly used for the development of electronic games, but that can be mobilized to create virtual environments with various objectives. This paper seeks to understand how virtual environments created in game engines can contribute to the field of ergonomics as a tool for simulation and teaching. To do so, four studies were developed and articulated: the first one deepened the discussion about the VE in GE for the simulation and analysis of work situations, indicating the potentials and limitations of this approach. The second presented an initial attempt to systematically investigate the use of VE in GE in teaching contexts by structuring a comparative experimental study. Based on the consolidated experience with these articles and the identification of a gap in the literature regarding the standardization of the development of VE in GE, the third study was designed to contribute with a framework to systematize the creation of VEs in GEs. The last study validates this framework by implementing it to develop a VE for teaching ergonomics that was validated in pilot testing and in interviews with experts. Thus, it is understood that the present work contributes to a better understanding of the potential of using VEs in GE for ergonomics, both in work simulation and analysis contexts, and in teaching contexts. The results achieved here contribute both to the theoretical field of simulation in ergonomics, and to its practice and teaching, which is particularly relevant in a context in which Brazil and the world seek new ways of teaching.
Análise geomorfológica e ambiental do município de Tatuí
(Universidade Federal de São Carlos, 2021-09-23)
Machado Junior, Claudio Machado
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Arruda, Emerson Martins
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https://lattes.cnpq.br/3883710507177933
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https://orcid.org/0000-0003-3695-3850
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https://lattes.cnpq.br/5636461619698981
The work developed refers to a research of environmental geomorphology and was based on the geomorphological characterization of the municipality of Tatuí, located in the SE portion of the state of São Paulo, Brazil. Besides the geomorphological analysis, developed from the identification of patterns of relief forms, the research also addressed the main environmental impacts that occur in the municipality. The methodology used in the work was based on theoretical references of Geomorphology, dealing with the taxonomic classification and the levels of approach of the relief. There was a bibliographic review of the theme, the elaboration of thematic maps, and field work. As a result, it was found that the municipality has six relief units, whose diverse characteristics are related to the different rocks found in its territory. Besides this, the lithological contacts themselves impose constraints on the area's drainage network, establishing different levels of dissection. Structural aspects such as faults and diabase dikes also influence the regional relief, and consequently, the landscape of the municipality. Allied to these characteristics, different activities related to land use were observed in the territory of Tatuí, focusing on elements related to the urban area, the impact of sealing and surface runoff in the city, which often presents flooding events and collapse of river slopes. A discussion on mining activity is also addressed in the work, in view of its expressiveness in the local economy. This end-of-course paper thus contemplates the results expected by the project and certainly constitutes a base from which future, more specific, studies can be unfolded.
Análise geomorfológica e ambiental do município de Tatuí-SP
(Universidade Federal de São Carlos, 2021-09-23)
Machado Junior, Claudio
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Arruda, Emerson Martins
;
https://lattes.cnpq.br/3883710507177933
;
https://orcid.org/0000-0003-3695-3850
;
https://lattes.cnpq.br/5636461619698981
The work developed refers to a research of environmental geomorphology and was based on the geomorphological characterization of the municipality of Tatuí, located in the SE portion of the state of São Paulo, Brazil. Besides the geomorphological analysis, developed from the identification of patterns of relief forms, the research also addressed the main environmental impacts that occur in the municipality. The methodology used in the work was based on theoretical references of Geomorphology, dealing with the taxonomic classification and the levels of approach of the relief. There was a bibliographic review of the theme, the elaboration of thematic maps, and field work. As a result, it was found that the municipality has six relief units, whose diverse characteristics are related to the different rocks found in its territory. Besides this, the lithological contacts themselves impose constraints on the area's drainage network, establishing different levels of dissection. Structural aspects such as faults and diabase dikes also influence the regional relief, and consequently, the landscape of the municipality. Allied to these characteristics, different activities related to land use were observed in the territory of Tatuí, focusing on elements related to the urban area, the impact of sealing and surface runoff in the city, which often presents flooding events and collapse of river slopes. A discussion on mining activity is also addressed in the work, in view of its expressiveness in the local economy. This end-of-course paper thus contemplates the results expected by the project and certainly constitutes a base from which future, more specific, studies can be unfolded.
A relação interesse-Estado na petrolífera argentina YPF. Trajetórias dos conselheiros e diretores executivos da empresa no período 2002-2020
(Universidade Federal de São Carlos, 2021-09-24)
Vidal, Nicolás Alfredo
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Donatello, Luis Miguel
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Donadone, Julio César
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https://lattes.cnpq.br/7643906508178259
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https://lattes.cnpq.br/0263871627893408
This paper analyzes an apparent "new way of doing politics" and the change in the interest-state relationship, seeking, within the Argentine oil company Yacimientos Petroliferos Fiscales (YPF), the circulation and conversions of the company's board directors and executive directors between 2002 and 2020. The objective of the Thesis is to analyze the life trajectories of the board directors and executive directors of the Argentine oil company YPF, in the period 2002-2020, in the search for their attributes to create ideal types that allow us to think about the interest-State relationship. The research, based on the reflexive sociology of Pierre Bourdieu, is predominantly qualitative and uses prosopography method to immerse in the common characteristics of the group of directors of the company through a collective study of their lives. We argue that there could be cases in which directors, after passing through the company, create intermediary companies with which they will sell their services to YPF, which could be a new way of co-opting the State. We found five ideal types of directors: The classic, directors who have spent their entire labor life in the company; the interlocker, advisors who sit in more directories besides YPF; the revolving door, directors entering and leaving the civil service to the private sphere; the consultant/lobbyist who after YPF's departure creates his consulting firm or sells influence; and, the transgressor, who after leaving the company creates his own energy company.
Resiliência hídrica urbana: diretrizes e estratégias para sua incorporação em municípios com o uso de indicadores
(Universidade Federal de São Carlos, 2021-09-24)
Corrêa, Thais Helena Prado
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Teixeira, Bernardo Arantes do Nascimento
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https://lattes.cnpq.br/1166854416745527
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https://lattes.cnpq.br/0668892738076635
Developing new strategies and tools to analyze the dynamics of water resources can help change the paradigm in city planning, optimizing decision-making, to help cities to remain hydraulically secure through investments that transform opportunities into solutions, and facing the adversities. The term Resilience has been gaining notoriety and supporters, both in academia and in management, for the development of applicable interdisciplinary tools and models since 2010, when the UN used the term to define cities capable of efficiently recovering from effects of any kind of risks and disasters. However, Urban Water Resilience (UWR) is still a term that has been little studied, approached, systematized, and applied in research related to the management of water resources. Thus, this work was motivated by the need to obtain interpretive data for the theme of UWR, considering its potential and importance regarding the construction of Resilience in general. Given the above, this research aims to propose guidelines and strategies for the incorporation of the UWR in municipalities based on the use of indicators. To achieve the intended objective, the direct or indirect presence of UWR in Municipal Plans of medium-sized Brazilian cities that are signatories of the international program Making Cities Resilient: My City is Getting Ready program was sought. In the next step, the Urban Water Systems (Water Supply, Sanitary Sewage, and Urban Drainage) were analyzed from the Components and Variables related to the UWR. Then, indicators associated with systematized variables were proposed, which were used in the proposed method for the incorporation of the UWR by the municipalities. As a result, it was observed that none of the Municipal Plans explicitly mention the term Resilience, although some aspects have been considered directly or indirectly. The systematization carried out resulted in fifteen Components and thirty-nine Variables, for which fifty-three Indicators were proposed that allow the monitoring of the UWR. Although the common practice of Brazilian cities in the division of Urban Water Systems has been maintained, an important advance towards making the city more resilient would be through integrated management of these, considering the UWR. Adopting the paradigm of unification of Water Systems and taking into account UWR will enable cities to assess the present and build the future by becoming water-safe cities.
Reaproveitamento de resíduos da agroindústria da laranja para a produção de compostos biodegradáveis em matriz de PBS
(Universidade Federal de São Carlos, 2021-09-24)
Duarte, Aline Vasconcelos
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Rigolin, Talita Rocha
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https://lattes.cnpq.br/9580513904975670
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Bettini, Sílvia Helena Prado
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https://lattes.cnpq.br/3687551763124327
The employment of biodegradable polymers is a partial solution to the problem of environmental plastic pollution, since conventional polymers are resistant to many environmental influences and it may take centuries for them to disappear completely from nature. Despite the environmental benefits and technical properties suitable for many applications, biodegradable polymers are generally limited by their performance and cost, which are relatively less attractive than conventional polymers. The residual fiber (RF), which is a by-product of the orange juice industries, can be plasticized with glycerol, under high temperatures and shear strain, resulting in the thermoplastic fiber (TPF). The use of TPF can reduce the costs of biodegradable polymers, enhance their biodegradability, and add value to agro-industrial waste. Thus, injected poly(butylene succinate), or PBS, specimens were produced with TPF additions in up to 50% mass fraction. The impacts of TPF content in PBS were evaluated by mechanical (tensile testing), thermal (Differential Scanning Calorimetry and Thermogravimetric Analysis), rheological, morphological (Scanning Electron Microscopy) and molecular weight (Size Exclusion Chromatography) analyses, in addition to the simulation of weight loss by burial. Although TPF did not significantly modify the PBS molecular weight, the rheological experiments have shown a trend for the formation of a physical interaction network with TPF additions from 30% onwards. Despite evidences of adhesion between the pectin/lignocellulosic fiber and pectin/PBS phases, the mechanical properties of the compounds were reduced, which was suggested to be due to excess glycerol and/or TPF mechanical characteristics. The weight loss, the appearance of a population with lower molecular weight, and the formation of holes on the PBS/50TPF surface, compared to the PBS surface, substantiate that TPF has potential to enhance the biodegradability of plastic products.
O ensino de funções contextualizado à criptografia
(Universidade Federal de São Carlos, 2021-09-24)
Braila, Roberta Maíra Verderi
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Carvalho, Silvia Maria Simões de
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https://lattes.cnpq.br/8244087426759161
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https://lattes.cnpq.br/7435317676276389
The teaching of Mathematics nowadays is facing great difficulties with disinterest of the students in learning the contents, considered for some as a hard job and no return for a future life, as professional though in person, on majority of times they are taught formulas and rules with no explanation of utility of the same subject. Being the functions one of the contents ignored by the students, the objective of this job is to check the student development through a practical application involving Cryptography and functions, bringing subjects of daily, as well as cryptography found in diverse as quite, principally electronics, the classes and the practical utilization differentiated such as game, exercises and computation tools, which culminate a learning of more significant with better performance and a bigger disposition of the students during the classes of this subject.
Classificação de embriaguez a partir de imagens faciais usando redes neurais convolucionais: uma abordagem baseada em respostas fisiológicas induzidas pelo álcool
(Universidade Federal de São Carlos, 2021-09-24)
Silva, Washington Rodrigo Dias da
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Felipussi, Siovani Cintra
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https://lattes.cnpq.br/2119337662024862
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https://lattes.cnpq.br/7750098763088592
Due to population growth and an increasing motorized vehicle fleet worldwide, road safety is still a global challenge that persists despite the awareness campaigns and the legal enforcement instruments. Most of the road safety risk factors are completely preventable, and in this sense the drunk-driving needs a special attention since a few doses of alcohol can be enough to impair motor and sensory functions required for safe driving. Hence, an individual in such condition may represent a road safety risk even presenting a blood alcohol concentration within the local legal limits. Since drunk-driving is a recurrent problem, in this master thesis we proposed a complementary method for drunk drivers enforcement considering the physiological responses induced by alcohol as intoxication indicatives. We addressed the drunkenness classification problem by identifying facial temperature distribution behaviors related to alcohol consumption. Such features were extracted from individuals facial thermal images in both drunk and sober states by a Convolutional Neural Network, which enabled the automatic pose invariant feature extraction and the model inference interpretation. This approach allowed us to identify temperature variations between the forehead and nose regions as a drunkenness indicative and also to identify an asymmetric facial temperature distribution in inebriated individuals that was not showed by previous studies. Hence, we were able to demonstrate a relation between facial temperature distribution patterns and the alcohol metabolic cycle; evidencing the viability of using images to recognize physiological effects caused by alcohol.
Estimativa da força de ruptura à punção em ligações laje-pilar interno sem armadura de cisalhamento de estruturas em concreto armado via modelos de regressão múltipla
(Universidade Federal de São Carlos, 2021-09-24)
Lanini, Tamiris Luiza Soares
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Almeida Filho, Fernando Menezes de
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https://lattes.cnpq.br/0447825383222965
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Christoforo, André Luis
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https://lattes.cnpq.br/7623383075429186
The structural systems critical point of flat slabs happens on the connection slab-column through the shearing stressing concentrations which may lead to the punching phenomenon. According to the literature, there are multiples factors that influence on the punching phenomenon, and many theoretical and experimental research have been developed willing to comprehend its behavior and then estimate the connection slab-column punching resistance. However, yet there is no sizing model completely accept by the technical scientific community which is able to estimate and explain such phenomenon and all of its influence parameters. In this context, this study aims proposing, by statistical analysis applied to experimental studies, a limit punching tensile strength predictor equation of the internal slab-column connection, with no shear reinforcement and symmetrical loading, on reinforced concrete edifications. Therefore, it has been evaluated the punching resistance predictor models presented by the literature and the mainly norms through a vast database containing the manly punching influencers parameters. The proposed model, based on only five real model variables – Slab geometry (Geo), Pillar dimension (L), useful slab height (d), concrete compression resistance (fc) and bending bar rate (ρ) – estimated the limit punching tensile strength (Pu) on internal slab-column connection with a 3% error order and R2 adj = 97.28%.
Dimensões da ciência e tecnologia e suas interfaces na atuação do bacharel em Gerontologia
(Universidade Federal de São Carlos, 2021-09-24)
Rosario, Natalia Maria da Silva
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Pedro, Wilson José Alves
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https://lattes.cnpq.br/8135701448186851
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https://lattes.cnpq.br/1417257574242593
The CTS field is an area that contributes to the potential of studies, as is the case of the present one, which involves the subject of Bachelor of Gerontology and its professional performance. Recognizing the relevance of this professional in the face of population dynamics, this study aimed to analyze the social dimensions contemplated in the formation and performance of the Bachelor of Gerontology graduated by the teaching institutions University of São Paulo (USP) and Federal University of São Carlos (UFSCar) , based on the analysis of the performance present in the Pedagogical Political Project of both academic curricula from the Lattes Platform and profiles from the LinkedIn Social Network. It was a study with plurimethodological procedures, composed of documentary research and netnographic research with publicly accessible data. The skills contained in the Political Pedagogical Projects Bachelor's Degree in Gerontology are highlighted, highlighting the emphasis on the management of organizations, programs and services, as well as the expanded concept of health placed in the demands of aging, as well as intersectoral and interdisciplinary actions, with adherence to the field CTS. The emerging visibility of the Bachelor of Gerontology in sectors and work fronts aligned with the training project is evident, challenging, however, training, especially with regard to professional practices and internship fields, in the sense of prospecting demands and creating opportunities for the interdisciplinary work of the Bachelor.
O stress no trabalho do docente da Pós-Graduação
(Universidade Federal de São Carlos, 2021-09-27)
Díaz Dextre, Katia Miluska
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Silva, Eduardo Pinto e
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https://lattes.cnpq.br/3492708361349827
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https://lattes.cnpq.br/3161253775430270
The general objetive was to investigate psychodynamics of stress and possible implications for the health and subjetivity of professors in a Graduate Program at renowned public university. We started the hypothesis and the existence of professors with stress and how this condition could lead to psychological suffering and health problems. The specific objetives were: Identifying existence of stress or the absence of stress, and in which phases (alarm, resistance, near, exhaustion and exhaustion); identifying existence of positive indices of common mental disorders or the absence of common mental disorders; characterizing the daily work, the existence of pressures, conflicts related to the demands of the management model and work evaluation; raise data indicative of the intensification of professor work. Also, Questionnaire and Semi-structured Interviews were used as methodological instruments. The Questionnaire was applied to 24 professors and it includes the Stress Symptoms Inventory (ISSL), the Self Report Questionnaire (SRQ-20) and questions about work, health and family life. The Semi-structured interviews were carried out with 7 professors and dealt with the theme of stress at work. Stress was found in 33.33% of the sample. After, analyzing the questionnaire data, commented summaries of the interviews and analysis of Categories A (Intensified work) and B (Suffering, stress and illness) were presented. We conclude that stress on teachers is characterized by biopsychic wear related to intensified work and the institutional dynamics of the university.
Entre o tempo, a memória e o espaço na escrita de Carolina Maria de Jesus
(Universidade Federal de São Carlos, 2021-09-27)
Silva, Alan Pereira da
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Carril, Lourdes de Fátima Bezerra
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https://lattes.cnpq.br/0328730975862213
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https://lattes.cnpq.br/7711877967014986
Este trabajo busca demostrar cómo Carolina María de Jesús crea una identidad a través de su escritura, como una escritura de sí misma. A través de las vivencias que tuvo en su vida, marcada por la violencia y el racismo, en el contexto de una sociedad marcada por la herencia de la colonización que jerarquiza al negro en base a estereotipos negativos, impidiéndole romperlos. Carolina se reterritorializa en la literatura como una forma de existir y servir a su propósito: mi sueño es escribir. Carolina escribe sus experiencias de vida reinterpretando su pasado y transformándolo en experiencias para la nación.