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Dimensionamento do conjunto manga de eixo, ponta de eixo e cubo de roda de um veículo Baja
(Universidade Federal de São Carlos, 2022-05-26) Costa, Cleber Roberto; Moreno, Mariano Eduardo; https://lattes.cnpq.br/1307496862518321; https://lattes.cnpq.br/0354719121948600
The suspension of a Baja SAE vehicle is highly demanded in competitions, due to the terrain characteristics, and can show constant failures, if badly designed. Besides, the dynamics of the car are directly linked with its own mass. Therefore, a precise dimensioning of the components will represent, not just a raise in reliability, but also in performance. With the dissemination of finite element analysis software, the dimensioning of parts with complex geometries, such as the knuckle gets much easier. However, the usage of these software by users that do not have the proper knowledge to perform a structural finite element analysis is becoming very common. It is a recurrent problem in the SAE competitions recently, also affecting the Baja UFSCar team. This work intends to design a group of components that compose part of the front suspension system of a Baja SAE vehicle, the knuckle, the hub, and the stub axle. The basis of the project will be a load history provided by a simulation made in a Python algorithm. After a revision of all the theory regarding the phenomenons involved, the dimensioning of the parts have been made with the help of a CAE software, which led to a mass reduction between 19% and 30%, of the worked components, considering a finite life of 60 hours, which is enough for four competitions, considering tests, or the life cycle of the vehicle.
Violência entre parceiras íntimas: caracterização do fenômeno e avaliação da rede de apoio das vítimas
(Universidade Federal de São Carlos, 2022-05-26) Furukawa, Letícia Yuki de Araujo; Komatsu, André Vilela; https://lattes.cnpq.br/8393101225656270; Pessoa, Alex Sandro Gomes; https://lattes.cnpq.br/4333565964821090; https://lattes.cnpq.br/2230015905762291
Intimate Partner Violence (IPV) is recurrent in the daily lives of many Brazilian women. Despite the recognition of the impacts of IPV, as well as the existence of homosexual relationships between women in numerous cultures, there are few studies that have focused on the experiences of violence experienced in these relationships, especially in the national context. The absence of investigations focused on this segment hides the epidemiological data and mask this harmful reality. It was hypothesized that lesbians who do not have the perception of support from social support are more exposed to IPV, as well as having more difficulties in breaking up with the aggressor partner. Based on these prerogatives, the objective of this research was to characterize IPV, more specifically in women's homosexual relationships, as well as to analyze possible associations between Perceived Social Support (PSS). This is a quantitative investigation, with a cross-sectional design, organized into three complementary studies that were presented in the form of articles. A total of 1057 Brazilian lesbian women, aged between 18 and 58 years old, participated in the investigation. Data collection was online and the following instruments were used: i) Brazil Socioeconomic Classification Criteria; ii) Revised Tactical Conflict Scale (CTS-2); iii) Perceived Social Support Scale (adult version) (EPSUS-A). Article 1 aimed to verify the association between IPV and PSS, based on the socioeconomic, ethnic and educational classification of Brazilian lesbian women. Data were analyzed using Pearson's correlation coefficient, which did not differ significantly in relation to violence data, with only differences in relation to PSS being observed. The study, despite its limitations, suggests that violence in women's homosexual relationships occurs in all social strata, regardless of ethnicity and level and education. Articles 2 and 3 are closely related as the sample was split so that Latent Class Analysis (LCA) could be conducted. In Article 2, based on an exploratory model, the objective was to characterize the manifestation of violence in women's homosexual relationships (n = 634) based on its typology and frequency, and to analyze the possible associations between violence and the perception of social support. Four significantly different classes were identified in terms of patterns of violence suffered and perceived social support. The findings reinforced that the relationship between partner violence and social support is a heterogeneous phenomenon, whose variables are not always directly related. Subsequently, in Article 3, the confirmatory analysis was performed. The sample consisted of 423 lesbian women and the number of classes obtained in the present study, through the LCA, confirmed the number of classes in the exploratory study. However, the results of this investigation suggested that the perception of social support can reduce the prevalence of violence in the relationship of only a part of the participating women. Other psychological and social variables should be included in studies of this size to detect other dimensions that are directly associated with the reduction or perpetuation of indicators of violence in women's homosexual relationships. It is hoped that this investigation will contribute to the unveiling of obscured issues regarding the manifestation of violence between intimate partners, as well as subsidize consistent reflections on the role of the support network in the rupture of violence in these relationships.
Contribuições da psicologia histórico-cultural para o processo grupal com usuários com esquizofrenia nos Centros de Atenção Psicossocial
(Universidade Federal de São Carlos, 2022-05-26) Piza, Helen da Costa Toledo; Schühli, Vitor Marcel; https://lattes.cnpq.br/2603826111657811; Bellenzani, Renata; https://lattes.cnpq.br/5545222663436009; https://lattes.cnpq.br/9001556995152894
The intent of this research was to investigate and systematize theoretical-practical contributions capable of adding up to a greater range of group activities at Psychosocial Care Centers – known in Brazil as CAPS - particularly to assist, along people with schizophrenia, the reorganization of personality through new mediations for reconstitution of the psychological system. This is a theoretical-conceptual study that evokes categories from historical-cultural psychology, collective health, historical-dialectical materialism and the group process theory according to the Latin American social psychology. By considering that the set of care actions in a mental health service needs to be aimed at socialization, without giving up therapeutic purposes, of psychosocial rehabilitation, it is understood that it is necessary to think about the group process in the light of the cultural-historical theory, evoking Leontiev's Activity Theory and the relation between the structure of activity and the development of the psyche. The starting point was the need to reflect on the possible mediations that a group activity could intentionally dynamize, focusing on the reorganization of consciousness and the entire psychological system. For this, it is necessary to take into account the particularities of each person with schizophrenia’s system disintegration and how this person has reacted, according to the singular and general conditions of the development of consciousness that takes place in historically configured social relationships. As a result of the theoretical-conceptual research, illustrations and practical recommendations were synthesized for the development of the main types of workshops recommended for the CAPS (therapeutic with manual and expressive, income generation and literacy/pedagogical activities). Two sections were organized: one which has more general contributions that these references add up to group practices in mental health; and another that has contributions of greater specificity for carrying out with people with schizophrenia. The most relevant principle is that groupality (sociogenetic plan of development) is the source and expression of microgenetic processes of development, which can reveal themselves as processes of reconstitution of higher psychological functions disintegrated in schizophrenia, and of the personality as a whole. Group management will be more powerful the more professionals direct their attention and efforts both to grouping (identifications, bonds, collective dimension of tasks, activities, roles and meanings), and to the dimension of singularity (needs, reasons, meanings to perform the activity), in addition to the system dynamics of the psychological functions of each participant. It is expected that the study can derive technical materials and training activities for CAPS professionals, promoting the advance in the conscious use of group techniques with users in general, particularly those affected by schizophrenia, contributing to the consolidation of the mental health policy in Brazil.
Parametrização de ligantes em Co(salen) aplicados na despolimerização de ligninas
(Universidade Federal de São Carlos, 2022-05-26) Costa, Mateus Oliveira; Ferreira, Marco Antonio Barbosa; https://lattes.cnpq.br/6874055640224407; https://lattes.cnpq.br/7899790817486672
Since the industrial revolution, fossil sources such as oil, natural gas or coal have become indispensable resources for human development with a variety of uses: from energy generation to drugs production and household items. Nowadays, we possess large reserves of these sources but they are not renewable and studies indicate few decades to run out of them. The use of renewable and non-toxic sources, as biomass, provides an interesting alternative for this dependence on oil and similar. Obtaining fine chemical products from lignin is an interesting alternative for the valorization of biomass, but to achieve it in an efficient, cheap and chemically sustainable way is a challenge. In the present work, we investigate oxidation reactions of lignin models catalyzed by Co(salen) complexes trying to understand which parameters influence the reaction efficiency. Therefore, we used data from the literature to create a statistical model that guided us to the synthesis of catalysts further used in this kind of chemistry, which were evaluated by means of conversion and yield. The reactions performed with the lignin models were parameterized, giving us information about the influences on steric and electronic properties the catalyst ligands must have to maximize the catalytic efficiency.