Browsing by Issue Date, starting with "2021-06-01"

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    O espírito ensaístico de Gilda de Mello e Souza: feminino, fragmentário, musical
    (Universidade Federal de São Carlos, 2021-06-01)
    Fernandes, Carlos Henrique dos Santos
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    Nascimento, Luís Fernandes dos Santos
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    https://lattes.cnpq.br/3654785629696808
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    https://lattes.cnpq.br/0662957003115795
    Ce texte traite du style d’essai de Gilda de Mello e Souza (1919-2005). Motivés par le soupçon d’une continuité propossée par Bento Prado Jr. entre Mário de Andrade (1893-1945) et notre philosophe brésilienne, nous avons recherché, en premier lieu, à situer les événements temporels circonscrits à la formation intellectuelle de Gilda, en soutenant la vision qu’elle était restée, à contre-courant aux spcécialisations, dans le champ plus ouvert de la critique d’art. Face à la situation de tension dans laquelle se sont maintennues la critique artistique et la science philosophique, nous visons, en second lieu, à mettre en évidence les théories consciemment placées en arrière-plan dans ses essais pour tenter de comprendre l’usage qu’elle en avait fait en opoposition à la compréhension rigide des systèmes philosophiques, le rapprochant des pensées phénoménologiques qui privilégient la perception et l’imagination. Après cette brève introduction à deux niveaux à la pensée esthétique de Gilda de Mello e Souza, nous avons terminé notre travail en corrélant sas pensée avec celle de Mário de Andrade, restreinte à la conception de l’esthétique musicale de ce dernier, atteignant la pragmatique que nous pense se trouver dans son écriture d’essai: sceptique, éphémère et inachevé.
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    Projetos pentecostais: organizações religiosas como empreendimentos e pastores como empreendedores
    (Universidade Federal de São Carlos, 2021-06-01)
    Pelais, Luiz Gustavo Beijo
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    Donadone, Julio César
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    https://lattes.cnpq.br/7643906508178259
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    https://lattes.cnpq.br/4911692934227704
    The relationship between religion and economics is a classic issue for the Social Sciences, however it has been relegated to the background in recent times, whether by adherents of the idea that religions have a secondary importance in the social fabric, or by the irreversible separation of economics in relation to other social sciences. Inserting itself in this tradition of studies, this dissertation intends to contribute to the understanding of contemporary Pentecostalism as it is loaded with an ethics that is very much in line with the idea of the self made man. This ideology emerges as a response to recent changes in capitalism and in the labor market. A central subject of this process in Pentecostalism, in addition to all adherents, is the figure of the pastor, who, in our understanding, finds in the religious organization an opportunity to make a career, undertaking, "opening his own church", as recommended by the entrepreneurial “spirit”. Thus, for the development of the present work, a bibliographic research was carried out, reaching theoretical saturation in order to contemplate the background questions raised, as well as resorting to the use of secondary data for its corroboration. As a form of analysis, we critically frame the entrepreneurial ethos as a precarious response to an economicsocial condition that is also precariously emerging. Far from being a definitive reflection, we intend this to be the construction of a referential framework for future empirical analyses.
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    Virtualização de laboratórios educacionais com distribuição eficiente de imagens de disco
    (Universidade Federal de São Carlos, 2021-06-01)
    Lima, Marcos Laerte Gomes de
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    Matias, Paulo
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    https://lattes.cnpq.br/3792055796261017
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    https://lattes.cnpq.br/8244089655911242
    Due to the transversality of Computer Science and Engineering as an area of interdisciplinary research and to the adoption of the computer as a tool by the most diverse areas of knowledge, computer labs have become essential infrastructure for conducting various classes in educational institutions. However, just like any organization or company that has dozens or hundreds of machines, these institutions have huge problems managing their computer assets concerning maintaining, upgrading, and inventorying these systems. This project aims to contribute to solving these problems by creating a solution for computer labs that encompasses user authentication, transparent system virtualization (by passing through devices to the virtual machine), remote system management and disk image distribution using BitTorrent (to fully take advantage of the bandwidth provided by the network infrastructure). The proposed solution was installed in the computerized classrooms maintained by the Secretaria Geral de Informática at UFSCar. The proposed objectives of implementing user authentication, systems virtualization, remote management and image distribution have been achieved. It is expected that this solution will also be adopted by other universities, and that the knowledge generated by this work can be applied to the management of large machinery parks in other contexts and other areas of the industry.
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    A música no ensino de química: uma análise de periódicos da área
    (Universidade Federal de São Carlos, 2021-06-01)
    Lima, Juliana de Souza
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    Milaré, Tathiane
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    https://lattes.cnpq.br/4030661520659155
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    https://lattes.cnpq.br/4030661520659155
    The aim of this paper is to present a literature review with a qualitative focus on music and chemistry teaching, published in the journals: Química Nova na Escola (QNEsc), REDEQUIM - Revista Debates em Ensino de Química and Educación Química en Punto de Vista. Although the few publications related to the subject, works with a theoretical approach were found, works with the first years of basic education, high school and undergraduate students. It was possible to analyze the importance that music has in the formation of children and adolescents as critical citizens and observers. We could observe that lecture classes are not the only possible means of learning. The work allows us to perceive the possibilities that the teacher has at hand when he makes proper use of this very important teaching tool.
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    Governança da gestão de resíduos sólidos brasileira: caminhos para a efetivação da Política Nacional de Resíduos Sólidos
    (Universidade Federal de São Carlos, 2021-06-01)
    Santiago, Cristine Diniz
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    Pugliesi, Érica
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    https://lattes.cnpq.br/6736386099280623
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    https://lattes.cnpq.br/2054503151318666
    Waste management in Brazil was marked by Law 12,305/2010, the National Waste Policy (NWP). Since then, timid advances have been achieved, and it is necessary to bring innovative interdisciplinary perspectives to the discussion. Thus, we sought to understand the waste management governance in the country in the period 1991-2020, as well as its relationship with the implementation of this policy, analyzing the articulation of the actors involved. Using the process tracing method, results point to the low horizontal and vertical articulation of the official interest group, impacting on decentralization, definition of responsibilities and local implementation. At the national level, it was observed that the Ministry of the Environment (ME), the current Ministry of Regional Development and the National Health Foundation understand the sector from different perspectives, shaping the tripartite optics that represents a challenge for integrated action. At the state level, the lack of articulation led to the State Public Ministries being protagonists, strengthening local and regional implementation of the NWP. The collective interest group had a greater performance at the end of the 1990s through the National Forum Waste & Citizenship, in addition to the performance of the National Movement of Waste Pickers of Recyclable Materials, which had space for articulation with the federal government (2003-2015), favoring the solid waste agenda and ensuring the inclusion of the category in the NWP. The business interest group is characterized by the overlapping of economic interests, as well as by the technical view of the sector. The influence of this group resulted in indirect accountability of the private sector, weakening the NWP. It is concluded that the lack of a formalized governance arrangement for waste management impacts on: (i) the lack of responsibilities definition for the different actors; (ii) the burden on municipalities to implement the PNRS; (iii) the low capacity of the ME to coordinate the policy; and (iv) the instability of this policy in the face of changes in the national and international context. In this scenario, even though the formalization of a governance arrangement is essential, the current context is not favorable to articulation, decentralization, participation, integrated management and a systemic view, representing risks of stagnation and setbacks for the NWP.
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    Redução de ruído Poisson com o algoritmo BM3D utilizando distâncias estocásticas
    (Universidade Federal de São Carlos, 2021-06-02)
    Tardivo, Lucas
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    Mascarenhas, Nelson Delfino d'Ávila
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    https://lattes.cnpq.br/0557976975338451
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    https://lattes.cnpq.br/5844021659181903
    Noise is a problem constantly present in digital images incoming from multiple sources, being important to study noise filters to improve the quality of images. When dealing with radiographic images, Poisson noise is an inherent problem that is more noticeable in a proportion that is inverse to the radiation dosage used for the same energy. Radiation, in high dosages, can be harmful to the patient's health, therefore the radiation dose reduction through new technologies is a desirable application. There are several techniques capable of filtering noise in digital images, which are most effective when directed to a specific type of noise. BM3D is a non-local image noise filter that works on Wavelet transform domain. The BM3D works by extracting similar small fragments in the image, called patches, having their comparison made by the Euclidean distance and grouped in sets of 3 dimensions. These patches are used for double filtering using hardthresholding on Wavelet domain and a Wiener filter, reducing noise and reconstructing the image. The Euclidean distance is very effective in comparing patches for AWGN noise (Additive White Gaussian Noise), however, it is inappropriate for Poisson noise and less effective when compared to stochastic distances. Based on this strategy, this work presents a technique for the reduction of Poisson noise with BM3D algorithm, replacing the calculation of the Euclidean distance by stochastic distances.
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    Letramento midiático e informacional em meio a pandemia da Covid-19: um estudo dos moradores do bairro Cidade Aracy
    (Universidade Federal de São Carlos, 2021-06-02)
    Silva Neto, José Marcos Amorim da
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    Furnival, Ariadne Chloe Mary
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    https://lattes.cnpq.br/1291482506649810
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    https://lattes.cnpq.br/0497167340820292
    Since the first case of COVID-19 was registered in the city of Wuhan in China at the end of 2019, the disease caused by the coronavirus SARS-Cov-2, has quickly spread across the continents, causing not only a health crisis, but also a “disinformation infodemic”. As this is a new disease, information is essential for self-protection, to be well and to prevent the proliferation of the virus, but it is necessary to recognize the sources of information determined to make good use of truthful information. This study aimed to identify whether the media and information literacy of the residents of the Cidade Aracy neighbourhood, in São Carlos, is related to the evolution of COVID-19 in that neighbourhood. Through a questionnaire addressed to residents, it was possible to identify the behaviour, points of view and habits of the community regarding information about COVID-19. Data show that City Aracy is the most affected by COVID-19, so it was selected for the study. We identified that the participants affirm that they do not have the habit of sharing information about COVID-19 and the vast majority report that they can verify the veracity of information. Therefore, it is possible to conclude that these media and information literacy skills self-reported by the residents, were possibly not related to such alarming numbers of COVID-19 infection in this neighbourhood.
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    Aprendendo sobre SARS-CoV-2: uma proposta de jogo de ludo para o ensino de química e de biologia.
    (Universidade Federal de São Carlos, 2021-06-02)
    Fontanetti, Gabriel Henrique
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    Ribeiro, Tatiana Santana
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    https://lattes.cnpq.br/7952918513827867
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    https://lattes.cnpq.br/5240355525287995
    The chemistry discipline is briefly presented to students in the eighth and ninth grade, through the Science discipline, and it only gains more contents in high school. Chemistry is an abstract Science: experimental classes are needed to be better understood, but educational institutions do not always have the necessary infrastructure. Due to this problem, several other learning formats can be proposed, according to each school situation. In December 2019, a new human disease emerged, the SARS-CoV-2 (severe acute respiratory syndrome) also known as COVID19, from the mutation of coronavirus type whose main replication hosts were, until then, bats. This type of virus became transmissible between humans through droplets of spittle: by speech, coughing or sneezing, and it spread rapidly around the world. From a survey carried out in scientific data bases, few papers were identified that included educational games with SARS-CoV-2 and ludo game proposed. This motivated us to develop as monograph work a didactic game that correlates subjects about SARS-CoV-2 with chemistry, biology, and public health content, in a playful and interdisciplinary way.
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    A Institucionalização das relações civis-militares no Brasil (1988-2014): o papel das prerrogativas presidenciais
    (Universidade Federal de São Carlos, 2021-06-03)
    Barreto, Lis
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    Malamud, Andrés
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    Diniz, Simone
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    https://lattes.cnpq.br/9726360676770459
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    https://lattes.cnpq.br/0306670293291235
    The presented research aimed to identify the causal mechanism that allowed for the institutionalization of the Brazilian civil-military relations between 1988 and 2014. First, there was a need to demonstrate the occurrence of such a process, through a comparative analysis of the existing legislation in 1988 and 2014, showing whether they had become more complex, circumscriptive, and universalist during that time. Once the institutionalization process had been confirmed, process-tracing techniques were used to deduce the process, identifying the patterns of institutional change and, therefore, collecting information that would help identify the causal mechanism. The proceedings of the Constitutional Emends and Complimentary Laws, and theme-related policies were analyzed, and the findings were qualified in light of the concepts of Historical Institutionalism. Such findings allowed for the identification of the predominant action coming from the Executive Power in the institutional modifications, and for the determination of which resources available to this Power enabled it to act in such a dominant manner. Making use of the literature on the Brazilian Presidentialism, it was possible to understand what are the presidential prerogatives, and in which way they have provided advantage to the President, enabling a legislative predominance of the Executive Power in multiple areas, including civil-military relations. Such prerogatives were divided into three types, according to what was found: precedence, resources and tools – and, with them, it was possible to deduce the causal mechanism that allowed for the institutionalization of the civil-military relations between 1988 and 2014.
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    Geração de viagens de veículos de carga e caracterização das dificuldades no recebimento de carga na região central de Sorocaba-SP
    (Universidade Federal de São Carlos, 2021-06-03)
    Nunes, Charles Pereira
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    Vieira, José Geraldo Vidal
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    https://lattes.cnpq.br/2068340476477363
    In this paper we present freight trip generation models and the difficulties of receiving cargo in the central region of the city of Sorocaba-SP. The survey was performed in 120 commercial establishments of various operating sectors, localized in the central region of the city. 5 linear regression model were developed, 2 of them for all commercial establishments and 3 models observing only the clothing establishments. The independent variables utilized were the number of employees, establishment area and, in the case of the clothing establishments, the daily number of customers, the dependent variable was the weekly number of freight trips. The results show that both the number of places available and their availability are insufficient to meet the current needs of the region. Therefore, easing the use of parking spaces (Zona Azul), could be a temporary policy to facilitate the receipt of cargo, while other.
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    Humanização, educação musical e escola: processos educativos no Musical de Evangelização Santo Agostinho
    (Universidade Federal de São Carlos, 2021-06-04)
    Previato, Daniel Bianconi
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    Joly, Ilza Zenker Leme
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    https://lattes.cnpq.br/5569335876343450
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    https://lattes.cnpq.br/1805611762000371
    This thesis, qualitative and characterized as a case study, had the Musical of Evangelization Saint Augustine as its object of study, an artistic-musical event promoted by a non-profit, Catholic confessional, primary education school that assist students from Early Childhood Education, Elementary School, and High School and whose realization happened throughout 2018. From a core theme (Saint Augustine), each class made studies and productions about a specific subtopic that culminated in an artistic performance shown at two nights of presentations at the end of the school year. It was the consequence of collective work that counted on the activity participation of teachers, direction, coordination, school staff, parents and other family members of students, and school community volunteers. Admitting this event as a social practice and based on the idea that educational processes emerge from every social practice that, in turn, promote transformations in the life of who experience them, the question that motivated this doctorate research was: what educational processes and human happen changes during an artistic-musical event executed by a school and in which the school community participates collaboratively? Therefore, the aim was to comprehend educational processes and human transformations that resulted from participation in the event. Data arise from the participant observation, collective semi-structured interviews with students and teachers, and an individual semi-structured interview with a student’s mother who also helped as a volunteer. The data registration occurred through a filed diary, simple reports written by some students who wished to do it after the interviews, photos, videos, and audio recordings. The analyses happened using the procedure of content analysis, guided by a group of authors, each within their specific theme, capable of embracing the different issues that emerged from it, in a dialogical manner and with humanization as a horizon. The result revealed sundry educational processes organized into three categories: 1 – theoretical and bibliography; 2 – oriented to the acquisition and development of technical abilities; 3 – oriented to the human formation. Each one of these categories kept itself many educational processes that indicated significant changes in the lives of those involved. Thereby, it was possible to perceive the singular importance of school events that provide the engagement of all those who constitute the school routine and of the community assisted by it and the value that music and different artistic manifestations have in the development of social practices, educational processes, and human transformations. Lastly, this thesis still provides ways and raises new questions and possible sequences of studies about this theme.
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    Parto domiciliar e cotidiano: espaço de morar, gerar e parir
    (Universidade Federal de São Carlos, 2021-06-05)
    Ricci, Maria Clara Sanches
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    Farias, Aline Zacchi
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    https://lattes.cnpq.br/2704188078319200
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    Ferigato, Sabrina Helena
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    https://lattes.cnpq.br/3248396158325409
    The present work is characterized in an exploratory qualitative study, gathering analysis of narratives published in cyberspace of women who underwent home births. At narratives were analyzed based on studies of occupational therapy in everyday life. looking for the marks of daily life that influence this event, having as objective to identify and analyze situations in the daily lives of women present at the moment of childbirth and its effects on the process of giving birth, strengthening the role of women. For this, in the context of a qualitative research, we started from the method of cartography of reports from childbirth available in cyberspace. The results point to the different ways in which the daily life of the mother, family and home can produce transformations in the process of childbirth. The action of giving birth at home converges and is expressed in the body's relationships and choices of the parturient with people, objects, environments, feelings and professionals.
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    Haitianos em Campinas-SP: deslocamento involuntário e ocupação
    (Universidade Federal de São Carlos, 2021-06-05)
    Pereira, Agatha Souza Zeller
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    Magalhães, Lilian Vieira
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    https://lattes.cnpq.br/8695787131933459
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    https://lattes.cnpq.br/3329098014888717
    Abstract: Since its inception, occupational therapy has been interested in the exclusion experienced by populations that historically are on the margins. Among these, it is possible to cite a figure that circulates through the various frontiers of society: the foreigner. This work aimed to analyze the main challenges of changing the cultural context, in the face of migration motivated by political, economic and environmental crises, examining the relevance of the occupations of these subjects in their process of adaptation to a new culture. The research had a qualitative character and used interviews to access the life history of Haitian immigrants, who sought Brazil as a place to start over. The reports show the importance of paid work in social inclusion, as well as the need to discuss the creation of public policies and the articulation of support networks, to guarantee an effective inclusion of these immigrants to Brazilian society through access to a dignified life.
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    Modos de vidas e o cotidiano da população em situação de rua de São Carlos - SP
    (Universidade Federal de São Carlos, 2021-06-05)
    Agnoli, Marina Dei
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    Silva, Carla Regina
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    https://lattes.cnpq.br/6417501858864106
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    https://lattes.cnpq.br/4079541650710218
    This Scientific Technological Initiation project is involved in the relationship between the demands of the homeless population, the recent integration of social policies and the contribution of promoting social practices and technologies, in the themes of social fragmentation and the processes of social vulnerabilities. Therefore, it proposes to contribute to the analysis of data collected by the 1st Census carried out with the homeless population in the city of São Carlos - SP, carried out in 2019, whose focus will be data related to the daily lives and ways of life of people who find themselves in that situation. The answers were tabulated and systematized using the Excel Office® software, so that graphs and tables were built for analysis, organized into four stages. Throughout the study, it was possible to build the profile of the participants, analyze their ways of life and identify inequalities among the participants, such as the high frequency of people on the streets, low adherence to public facilities and the absence of work in their daily lives. For these underprivileged daily lives, social technologies were proposed, based on the expertise of Occupational Therapy, as strategies that respond to the real needs of this group.
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    Levantamento da curva de custo de usinas eólicas para a definição de preços em contratos do PROINFA gerenciados pela Eletrobras
    (Universidade Federal de São Carlos, 2021-06-07)
    Toledo, Guilherme Ferraz
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    Lage, Guilherme Guimarães
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    https://lattes.cnpq.br/4426242038269208
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    https://lattes.cnpq.br/3374937456491140
    A matriz energética elétrica brasileira vem se alterando com a ajuda de programas de incentivo a energias renováveis, buscando menores custos e um ganho maior com bem estar social. Assim faz-se necessário a integração de fontes de energia alternativas às convencionais na resolução de problemas de despacho econômico, que tem por objetivo encontrar o ponto ótimo de alocação de energia em um sistema de potência. Esse problema pode buscar tanto minimizar custos, quanto maximizar lucros ou o ganho social. O presente trabalho busca desenvolver um método para encontrar a função custo de geração eólica para aplicação em um despacho ótimo buscando maximizar a função bem estar social na produção de energia eólica. Esse método procura caracterizar as curvas de velocidade de vento a partir da função de densidade probabilidade de Weibull para que possam ser considerados os aspectos incertos da produção de energia eólica ligados à superestimação e subestimação de potência eólica disponível, assim como estimar o custo de implementação de um complexo eólico e de manutenção do mesmo. Portanto é feito um estudo de caso com um sistema de 6 barras sendo três de geração e três de carga chegando no valor ótimo para o preço da energia que pode ser utilizado para valoração dos contratos do PROINFA para geradores eólicos.
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    Produção científica sobre saúde indígena na biblioteca virtual em saúde Brasil (BVS): um estudo bibliométrico
    (Universidade Federal de São Carlos, 2021-06-07)
    Almeida, Natalia Rodrigues
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    Ogata, Márcia Niituma
    ;
    https://lattes.cnpq.br/3274294833403570
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    https://lattes.cnpq.br/6131439730455834
    ;
    https://orcid.org/0000-0001-7011-188X
    The history of indigenous population has been marked by tragic epidemics of infectious and parasitic diseases and in 2020, with the pandemic of COVID-19, the political, social and environmental vulnerability of these populations is even more evident. Therefore, it is considered essential to know the scientific production about these populations considered vulnerable due to their space and socio-cultural expropriation and how close it is to the priority needs of health care. This study is justified in the sense of contributing to identify knowledge producers in research on indigenous health, providing evidence of institutional centrality and the possibility of greater investment in research in indigenous health. The Science, Technology, Society field allows us to analyze aspects that provide this construction: who researches, what is researched and for whom it is researched. Thus, the research has as its general objective to map and quantify the scientific activity in Brazilian indigenous health through bibliometric methods considering the year of publication, journal, author and keywords. As for the methodological procedures, it is classified as descriptive with a quantitative approach. The informational source chosen for the research was the Virtual Health Library Brazil, which is an integral part of the Virtual Health Library for Latin America and the Caribbean and to assist in the organization of the data, the StArt tool was used. From the search strings used in the VHL Brazil portal, 1083 articles were identified; after reading the articles and predefined inclusion and exclusion criteria, 126 articles were kept for analysis purposes. For the discussion of articles from the perspective of Science, Technology and Society, it was considered important to indicate: indigenous cultural issues on each theme; change in habits and aspects related to technologies. The year indicator showed considerable growth only in 2014, with more periods of stability than growth or retraction of publications. The periodical indicator presented the Public Health Notebook with the largest number of publications. Regarding the author indicator, the one that most published in the analyzed period was Santos, Ricardo Ventura. And from the indicator of the keywords of the articles, it was possible to find out which themes were most addressed in the period from 2010 to 2018 and they are: oral health, followed by women's health, tuberculosis, nursing and surveillance and nutritional status. As a limitation of the research, in order to better understand the scientific progress in relation to the recovered targeted subjects through the StArt tool research, it should be pointed out the need for an analysis of the articles in relation to the methodological issues; it would also be interesting to expand the study to books, theses and dissertations and scientific events. In addition, it was observed that the theme of women's health has 4 lines of research in the Research Priority Agenda of the Ministry of Health, which would be a specific theme to be studied in new research.
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    Capacidade resistente de vigas celulares mistas à instabilidade no montante de alma
    (Universidade Federal de São Carlos, 2021-06-07)
    Ferreira, Felipe Piana Vendramell
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    Martins, Carlos Humberto
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    https://lattes.cnpq.br/1665294496138141
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    Nardin, Silvana de
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    https://lattes.cnpq.br/5587716781980132
    The present work aims to investigate the web post buckling resistance of composite cellular beams. For this task, geometrical and physical non-linear analyses are developed in the ABAQUS® software. The computational model was calibrated considering physical models of composite cellular beams, with steel-concrete composite slabs, and steel-concrete composite beams with precast hollow-core slabs. Subsequently, the numerical models were unified to represent the composite cellular beams associated with precast hollow-core slabs. Two parametric studies were carried out, varying the cellular beams key parameters, such as the web-post width and the opening diameter. The first study evaluated the floor systems, considering steel-concrete composite and precast hollow core slabs. The second study investigated the composite action, varying the spacing, with one and two connecting lines, between the shear studs. In the first study, considering the section with double symmetry and precast hollow core slab, the predominant failure mode was web post buckling. For the section with asymmetry, the predominant failure mode was the combination of the plastic mechanism with the web post buckling accompanied (or not) by the shear stud rupture. In the analysis of the type of slab it was found that the composite cellular beams with precast hollow-core slabs presented greater resistance. The results of the first parametric study showed that the resistance of the composite cellular beams was not limited only by the resistance of the cellular profile, but also, of the slab, due to the shear resistance. On the other hand, in the second parametric study, a drop in global shear resistance was observed due to the absence of shear studs above the second opening, close to the support. The numerical models of composite cellular beams with hollow-core slab and concrete topping presented greater global shear resistance than the models without concrete topping. However, for those models with concrete topping, there were a greater number of observations in which the shear studs rupture occurred. Finally, the results of the second study were compared with a proposed equation, which takes into account the global shear resistance due to web post buckling, Vierendeel mechanism and composite action. The proposed analytical model showed an excellent correlation with the results of the numerical analyses, especially for the models in which the combination of the web post buckling with the plastic mechanism was identified.
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    Materiais de eficiência melhorada baseados em zeólita clinoptilolita, macro e micronutrientes e biopolímeros
    (Universidade Federal de São Carlos, 2021-06-07)
    Binotto, Vilma Damian Dias Neves
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    Pereira, Tamires dos Santos
    ;
    https://lattes.cnpq.br/8140406570277041
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    Faez, Roselena
    ;
    https://lattes.cnpq.br/0654750186618555
    There has been exponential population growth and, consequently, an intensification in the use of fertilizers. The overuse of fertilizers generates environmental impacts, due to the leaching and volatilization of fertilizers, which can contaminate soil and water. One of the ways to minimize these impacts is to use enhanced efficiency fertilizers which allows the proper use of nutrients according to the demand of the plants, reducing both the environmental and economic impact. Additionally, the use of materials from natural sources and with potential for biodegradation contributes to the sustainability of system. In this work, tablets of enhanced efficiency were developed, composed of clinoptilolite zeolite matrix adsorbed with macro (K) and micronutrients (Cu, Zn, Mn, Fe) and covered by crosslinked alginate and chitosan. Initially, the process of adsorption of nutrients by zeolite was evaluated and applied to mathematical models to determine the kinetics and isotherm of adsorption. From the zeolite / nutrient powder, tablets were obtained by pressing and covered with polymers using dipping technique. Through the kinetics process, it was possible to conclude that K fits the first-order equation, that is, it is adsorbed on the zeolite by physisorption. The micronutrients are adsorbed to the zeolite by chemisorption. Through the difference between the adsorption capacity of the nutrients and the concentration, it was determined that the Langmuir’s isotherm was most suitable for the nutrient ions evaluated implying that the nutrients are linked by monolayer. The Freundlich isotherm, in which nutrients tend to organize themselves in multilayers under the zeolite, was the one most suitable for Fe. Preliminary data on the release of tablets in water show that the coating prolongs the release of nutrients. Within this context, it was found that this theme is very promising to be worked on in the classroom, as there are a variety of themes (contamination of effluents, water, fertilizers, food, plant growth, etc.) that can be worked in an interdisciplinary way, with this, two learning proposals were developed addressing these topics. We can conclude that the work has the potential to contribute to a better use of nutrients by plants and the reduction of environmental impacts, in addition to promoting an important approach on sustainability for teaching
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    Estudo de caso de estabilização de taludes em área urbana com estruturas mistas de solo grampeado e cortina atirantada
    (Universidade Federal de São Carlos, 2021-06-07)
    Paiva, Carolina Trindade
    ;
    Bonuccelli, Teresinha de Jesus
    ;
    https://lattes.cnpq.br/1193172622501312
    ;
    https://lattes.cnpq.br/3948859432677203
    In Brazil, earth retaining structures have been frequently used as a resource to improve urban areas utilization. The increase of urbanization and demographic index demands, as a side effect, the use of underground parking fields, tunnels, and new urban roads. To extend urban space and provide security against soil collapses, studies in geotechnical engineering are crucial and need to be constantly improved. Due to the diversity of geological contexts, careful and detailed analyses must choose the most appropriate earth retaining structure. In this sense, this work has studied and discussed two types of earth retaining systems that are the most applied by civil engineering in urban roads: soil-nailed and anchored walls. We review the literature regarding the two systems and the main calculation methods for slope stability analysis. Particularly, it was studied slope stability cases of two cut walls implemented in an avenue expansion project at Salvador city, state of Bahia. The analysis of the results indicated that the mixed use of soil-nailed and anchored wall for slope stability of a cut wall was the most coherent solution in terms of technical and economic feasibility.
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    Inferência da conectividade neuronal via estimação de medidas da teoria da informação
    (Universidade Federal de São Carlos, 2021-06-08)
    Girardi, Victor Augusto
    ;
    Pena, Rodrigo Felipe de Oliveira
    ;
    https://lattes.cnpq.br/6663640683388672
    ;
    Ferreira, Ricardo Felipe
    ;
    https://lattes.cnpq.br/2355076087945221
    Information theory studies how communication systems integrate, encode, compute, and transmit information. The neural system is an example where communication takes place with neurons responding to stimuli and conducting electrical impulses by means of action potentials thereby causing a flow of neuronal information throughout the system. In this sense, one of the goals of this work is to study some information theory measures, with special attention to their application in the study of neural connectivity. The second goal is to understand the process of mathematical modeling of neuronal spike-trains prescribed from stochastic chains with memory of variable length as well as proposing estimators for the information metrics based on samples of these chains. Lastly, we study the performance of the estimators via computational simulation.