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Aplicação do shunt piezoelétrico para controle passivo de chatter no processo de torneamento da liga Ti-6Al-4V ELI
(Universidade Federal de São Carlos, 2022-08-01) Pereira, Adailton Gomes; Antonialli, Armando Ítalo Sette; https://lattes.cnpq.br/4367459395417045; Shiki, Sidney Bruce; https://lattes.cnpq.br/0573973677787523; https://lattes.cnpq.br/7109181056278953
One of the main limitations for increasing the productivity of machining processes is the emergence of self-excited vibrations. This type of phenomenon, commonly called chatter, arises due to the interaction of the cutting tool with the wavy surface of the part to be machined. One of the strategies to mitigate these effects lies in the use of passive vibration control using a shunt piezoelectric device, which consists of an electrical circuit connected to piezoelectric material coupled to the structure in order to dissipate vibrations. This master’s research proposes the study of these device for chatter control in the turning process of titanium alloys and to analyze their performance when the cutting parameters are varied. The results showed that the cutting speed is more influential on the roughness of the parts, the feed and the machining depth are more influential on the vibration. With the simulations performed, it was possible to show that the shunt device is efficient to reduce vibrations and increase the stability limit of the process, thus mitigating the chatter during the machining process.
Comunicação alternativa ampliada sob a ótica dos profissionais atuantes em cuidados paliativos no contexto hospitalar
(Universidade Federal de São Carlos, 2022-08) Aguilera, Giovanna Barbosa; Bombarda, Tatiana Barbieri; https://lattes.cnpq.br/8070700589653226; https://lattes.cnpq.br/5145480196132520
Introduction: Communication is the main way for the relationship between patient, family and team, being an extremely important tool to ensure the patient's wishes, sustain their hope and reduce the fears linked to the experience of the illness process. Faced with situations of temporary or permanent impediments to the patient's verbal expressions, it is necessary to offer an alternative way to perform the communicative function. Objectives: This study aimed to verify the use of alternative and expanded communication by professionals working in palliative care in the hospital context with the adult and elderly population. Methodology: This is a cross-sectional, exploratory study, involving a field survey with a quantitative-qualitative approach. Data collection took place through an online questionnaire, with data analyzed using simple descriptive statistics and content analysis. Results: Fifteen health professionals participated in this research, who consensually expressed the level of maximum importance attributed to the communication skill in palliative care, a factor supported by three central ideas: basis of palliative practice, path to singular therapeutic planning and active participation of the patient in treatment and a tool for multidimensional assessment of suffering. However, in the face of clinical conditions in which the patient's communication is altered, some professionals mentioned a lack of preparation to provide communication through alternative resources. When using resources for expanded alternative communication, it was noticed that the approach is limited, focused especially on the identification of symptoms and basic needs, with reduced exploration of multidimensional aspects. Conclusion: It was found that there is clarity among the participants about the importance of communication in the care process and that the deprivation of spaces for expression and exchanges constitutes a potential element of suffering. In view of this understanding, part of the professionals mentioned strategies used within poorly systematized actions, a factor associated with low education on assistive resources and the absence of a multiprofessional hospital team to support such implementations.
Estratégias de Consagração e de Valorização da Matemática por meio da OBMEP:
(Universidade Federal de São Carlos, 2022-08) Neto, João Alves de Souza; Vilela, Denise Silva; Farias, José Vilani de; https://lattes.cnpq.br/5447633775917499; https://lattes.cnpq.br/8155152145332951; https://lattes.cnpq.br/3915260629619142; https://orcid.org/0000-0002-5216-2023; https://orcid.org/0000-0003-2973-1301; https://orcid.org/0000-0002-3411-3420
Neste artigo apresentamos alguns resultados de pesquisa sobre a Olimpíada Brasileira de Matemática das Escolas Públicas, a OBMEP. Trata-se da maior olimpíada de Matemática do mundo, promovida e organizada por matemáticos de formação, abrangendo escolas de mais de 99% dos municípios do Brasil. O objetivo do artigo é apresentar uma visão sociológica desta competição, de acordo com o referencial teórico-metodológico de Pierre Bourdieu (1930-2002). Com base em um desenho do campo da matemática é possível interpretar a OBMEP como uma estratégia dos matemáticos para valorizar, consagrar e legitimar o seu modo de fazer e de ver a Matemática, impondo essa visão à escola. São analisados documentos, como cartazes, sites de divulgação, artigos e outros materiais de domínio público. Por meio dessa análise, compreendemos que existem práticas de inculcação de crenças, de valorização e de legitimação de uma Matemática, a acadêmica. Veicula-se também, por meio da OBMEP, que é essa Matemática que é base e alavanca para o desenvolvimento científico e tecnológico do País.
Elaboração e aplicação de índice para avaliação do saneamento e saúde ambiental (ISSA)
(Universidade Federal de São Carlos, 2022-08-01) Shibasaki, Karina; Ventura, Katia Sakihama; https://lattes.cnpq.br/0765182109837821; https://lattes.cnpq.br/6110237427903449
The accelerated urban growth has brought into evidence the idea of sustainable development, which presents many challenges to be achieved and maintained in municipalities. Because of this, public management must be integrated with the use of tools to support the decision-making of public administrators. In this sense, the usefulness of indexes that address sanitation and environmental health is important for the achievement of sustainable development. Therefore, the objective of this study was to elaborate an index to evaluate the sanitary and environmental conditions in the municipality. The methodological procedures consisted of 12 (twelve) steps, which included a bibliographic survey, identification of indicators related to environmental health and sustainable development, structuring of a conceptual model (ISSA) after indicator selection criteria (C1 - to be useful, C2 - to be easy to understand, C3 - being feasible, C4 - being measurable), consultation with experts to verify the weights among the indicators by the Analytic Hierarchy Process (AHP) method, application of the ISSA in municipalities of the Baixo Pardo / Grande Watershed (UGRHI 12), comparison between Alvares' ISA (2020) and ISSA, and finally the analysis of the results. The results show that the ISSA is composed of 18 sub-indicators divided into 7 thematic axes (indicators): Water Supply, Sanitary Sewage, Solid Waste, Urban Drainage, Environmental, Public Health, and socio-economic. The consultation with the experts showed that the indicators Water Supply and Sanitary Sewage presented the highest significance, while the Public Health indicator had the lowest weight. The ISSA applied to the municipalities of UGRHI 12 indicated that 8 municipalities with medium health status and 6 municipalities with low health status. About the Watershed, a value of 48.96% (low salubrity) was obtained. In the comparison between the ISSA and ISA of Alvares (2020), there was great variance in the final values for the municipalities, and in the first index the values obtained were lower concerning the second, and for the watershed obtained Low Salubrity and Average Salubrity, respectively. Finally, in the proposed method there was the addition of variables related to the Environment and Drainage, and it is concluded that the greatest significance in the index is given by the indicators themselves, without the interference of weights, making the index more homogeneous. It is noteworthy that both methods allow improvements to be made in their methodology, and can be adopted for the evaluation of salubrity, being an efficient tool for public management.