Browsing by Issue Date, starting with "2019-04-01"

Filter results by year or month

Now showing 1 - 20 of 12044

Um procedimento para seleção de variáveis em modelos lineares generalizados duplos
(Universidade Federal de São Carlos, 2019-04-01)
Cavalaro, Lucas Leite
;
Pereira, Gustavo Henrique de Araujo
;
https://lattes.cnpq.br/4536501674241631
;
https://lattes.cnpq.br/2371167969495052
The double generalized linear models (DGLM), unlike the generalized linear model (GLM), allow the fit of the dispersion parameter of the response variable as a function of predictor variables, improving the way of modeling phenomena. Thus, they are a possible solution when the assumption that the constant dispersion parameter is unreasonable and the response variable has distribution belonging to the exponential family. Considering our interest in variable selection in this class of models, we studied the two-step variable selection scheme proposed by Bayer and Cribari-Neto (2015) and, based on this method, we developed a scheme to select variables in up to “k” steps. To check the performance of our procedure, we performed Monte Carlo simulation studies in DGLM. The results indicate that our procedure for variable selection presents, in general, similar or superior performance than the other studied methods without requiring a large computational cost. We also evaluated the scheme to select variables in up to “k” steps in a set of real data and compared it with different regression methods. The results showed that our procedure can also be a good alternative when the interest is in making predictions.
Habilidades sociais educativas de docentes universitários na avaliação de alunos: validação de um instrumento
(Universidade Federal de São Carlos, 2019-04-01)
Santos, Joene Vieira dos
;
Del Prette, Almir
;
https://lattes.cnpq.br/2191226494887247
;
https://lattes.cnpq.br/2758607421177423
The present study had as objectives to examine: (a) evidence of validity of the Inventory of Educational Social Skills of the University Professor – Student Version (IESS-UPStudent) based on the internal structure and relationship with the satisfaction criterion variable; (b) the relationship between teacher and student evaluation of the professor’s HSE repertoire; and (c) the differences in the HSE level attributed to the teacher according to the characteristics of the sample. One thousand four hundred and six students and 16 university professors participated in this study. The results showed that IESS-UP-Student is composed of five dimensions: approve and value student behavior (AVB, 13 items), expose, explain and evaluate interactively (EEE, 11 items), cultivate affection, support and good humor (ASG, 10 items), reject undesirable student behaviors (RUB, 9 items) and guide activities (GAc, 6 items), which form a higher dimension called the university professor’s ESS. The invariance analysis of the model showed that this structure is equivalent in function of characteristics of the professor, student and Institution of Higher Education (IHE). The data also indicated that teacher’s HSE interferes positively and significantly in the level of student satisfaction with the teaching performance (variable criterion) and there are discrepancies between teachers’ and students’ perceptions of professor performance. In addition, differences in the HSE level attributed to teachers were identified according to the characteristics of the teacher (gender, role and contact in other disciplines), student (gender, area of knowledge and moment of the course) and IHE (nature, region and philosophy institutional). These results seem to indicate that the IESS-UP-Student can be a useful tool to: (a) examine the learning conditions offered to the student, based on the professor’s HSE; (b) provide feedback to the teacher about the relationship established with their students; and (c) to evaluate the effectiveness of intervention programs aimed at developing the HSE of college teachers.
Curvas de rotação galácticas em teorias métricas da gravitação
(Universidade Federal de São Carlos, 2019-04-01)
Gauy, Henrique Matheus
;
Ramos-Caro, Javier Fernando
;
https://lattes.cnpq.br/2067343302764973
;
https://lattes.cnpq.br/1412367289023716
From a Parametrized Post-Newtonian (PNP) perspective we attempt to partially answer the question, by studying some models, of whether or not the new degrees of freedom, represented by the PNP potentials, can lead to significant modifications in the dynamics of galaxies in the direction of rendering dark matter obsolete. In the PNP, several parameters classify each theory and their possible values are tightly constrained mainly due to solar system experiments [ 1 , 2 , 3 ]. Such restrictions renders the modifications of gravitational effects, with respect to General Relativity, to be insignificant, making attempts to find alternative metrical theories rather fruitless. In recent years a new kind of metric theories have arisen to popularity and are characterized by "Screening" mechanisms [ 4 ]. These lead to the possibility of modifications in larger scales than the solar system while retaining the success of GR in the latter, allowing for violations of the constraints of the Post-Newtonian parameters. With this new paradigm we consider two kinds of solutions: (i) When no matter field is present, or in other words, vacuum; (ii) or a Politropic distribution of matter. For (i) we find that the corrections don’t lead to the needed modifications as required to be an alternative to dark matter. In (ii) for most choices of the parameters (when changing γ , β , ξ , α 3 , ζ j , with j = 1 , 2, from their values in GR) the need for dark matter is unavoidable, in order to find a flat rotation curve. It’s only for theories in which ζ 3 > 0 that some resemblance of flat rotation curves is found. The latter suggests, at least for the models considered, that these are the only theories capable of replacing dark matter as a possible explanation for the dynamics of galaxies.
A produção residencial por empresas privadas: sua influência no território urbano de São José do Rio Preto/ SP de 2000 a 2015
(Universidade Federal de São Carlos, 2019-04-02)
Lisbôa, Cristian Roberto Nazareth
;
Castro, Carolina Maria Pozzi de
;
https://lattes.cnpq.br/2178910002833930
;
https://lattes.cnpq.br/6793401519214462
The present work shows a study regarding the private residential real estate production by companies and its influence in São José do Rio Preto-SP urban morphology. The research is a product of primary data gathering, acquired with the county, and its analysis. Such data consists in licensing derived from certificates of occupancy issued to company made residential buildings from 2000 to 2015. The research discusses how the growing implantation of private residential real estate enterprises, aimed to diverse social strata, has provoked changes into the housing provision structure, both new and consolidate areas value increase, the growth of urban voids and the city’s spreading. The work shows that there has been an expansion-retraction cycle and that the expansion apex occurred in 2012, but that there has been successive retractions of the productive volume in the following years. In what regards the urban mesh, initially this production spatialization happened foremost at the south and east county areas. Although, later, it converged into the north area creating considerable impacts in that area’s real estate excessive price increase. During this process, it was also verified the open capital companies important participation in the housing provision structure analyzed, as well as a forged partnership between the county public power, the incorporation capital and the real estate entrepreneurs.
Dimensionamento e sequenciamento de lotes no segmento de eletrodomésticos de linha branca
(Universidade Federal de São Carlos, 2019-04-02)
Bergamini, Fernanda Paula
;
Munari Junior, Pedro Augusto
;
https://lattes.cnpq.br/1328868140869976
;
https://lattes.cnpq.br/1955261130389344
In this work we address the optimization of the production of household appliances in a white line segment. The main characteristics of this production process are maximum number of lot breaks per time period; production lines in parallel and with different speeds that vary according to the type of product; the multiple capabilities with multiple product models; and capacity constraints in the manufacturing process and availability of productive hours. Such characteristics are motivated by the real case of a company that operates in the white line segment. We investigate new optimization models to represent the problem of sizing and sequencing of production batches for the white line segment, in order to minimize the processing time of the production and reduce the amount of batch fractionation in production, meeting the demand request. The decisions are treated independently, due to the complexity of the actual situation studied. The results of computational tests with instances based on actual data show that the proposed optimization approaches, both for the production batch sizing and for the sequencing of these batches, presented good solutions for the case under study. In the experiments carried out, it was possible to reduce the processing time of the production, which was the main objective, besides the opportunity to gain productivity with the implementation of the models proposed. It should be noted that the motivation for this work arose from a difficulty of the company to meet the scheduled delivery. To solve this difficulty, the executive board decided to create a collaboration between the factory and the university to find an adequate solution strategy. Thus, this work also allows the reduction of the gap between theory and practice through a real case study, contributing to the approximation between academia and industry.
Avaliação química da qualidade de couros e efluentes de curtume
(Universidade Federal de São Carlos, 2019-04-02)
Braz, Carlos Eduardo Mendes
;
Nogueira, Ana Rita de Araújo
;
https://lattes.cnpq.br/7034773971317045
;
https://lattes.cnpq.br/1605378953053890
For the transformation of animal skin into leather, a stable and not putrescible material, various chemicals are used to produce a material with good quality and appearance. Because it presents low cost and generates high strength product, Cr(III) is the main tanning agent used in leather processing. However, it is toxic, mainly in the oxidized form (Cr(VI)). The environmentally friendly alternative is the use of tannins (synthetic or vegetable), replacing Cr(III). Regardless of the tanning process, it is important to evaluate the quality of the leather produced and the generated waste, whose characteristics must be known for treatment or reuse. Thus, this thesis aims to evaluate the quality and thermal stability of sheep hides of different genotypes tanned with Cr(III) or tannin; the proposition of models for assessing the quality of bovine hides by combining near-infrared spectroscopy (NIRS) with physic-mechanical data; and the development of procedures to determine the inorganic constituents in the final product (leather) and in the effluents generated during the tanning process. The influence of the genotype and the type of tanning, chromium or tannins, on the physical-mechanical properties and thermal stability of sheep hides, was evaluated with the aid of Principal Component Analysis (PCA). The results indicated a more significant influence on the type of tanning than those related to the genotype of the animals. Chromium-tanned leather is more stable thermally when compared to tanned leather, but this difference occurs only at temperatures above 250 °C. Differences were also observed in the direction that the physical-mechanical test was performed, longitudinal or transverse to the cephalous-caudal axis caused as a function of the way in which the collagen fibers are elongated during the physical-mechanical test. The combination of NIRS associated with chemometric tools was used in the construction of classification models to predict the quality of bovine hides from physical-mechanical data, such as tensile strength, elongation, and resistance to tear and tear two legs. The mean accuracy obtained with different models (kNN, SIMCA, and PLS-DA) was 88%. For the determination of chromium present in hides, the preparation of samples using acid digestion and alkaline solubilization with tetramethylammonium hydroxide (TMAH) were developed. The analyses were made by microwave-induced plasma optical emission spectrometry (MIP OES). Samples of bovine, sheep, and goat hides were analyzed after digestion, according to the best conditions previously defined by experimental design, and the results were not statistically different (t-test) in both procedures used. Strategies for the preparation of samples of tannery effluents to determine the elements foreseen in the legislation (CONAMA 430/2011) were evaluated in a system of UV and H2O2 radiation and determination by MIP OES. Different analytical techniques were applied to evaluate the quality of leather and effluents of the tannery and are adequate, both from product quality and for the evaluation and proposal of treatment of the generated waste.
Construção de material didático para o ensino de Física para alunos com deficiência visual
(Universidade Federal de São Carlos, 2019-04-03)
Kauvauti, Bruno Terra
;
https://lattes.cnpq.br/6390725197649567
;
Cruz, Tersio Guilherme de Souza
;
https://lattes.cnpq.br/0705292304279277
;
https://lattes.cnpq.br/8920510756124949
The present work aims to present a didactic material for the Physics Teaching focuses on students with visual deficiency in common classrooms. The method adopted is summarized in the high-relief models based on illustrative images of the supporting curriculum book of the State of São Paulo. The use of adaptations of images in high-relief models is not new, but the work developed in this dissertation differs from others consulted so far, as it presents an application model for high-relief models in common classroom. In relation to learning theory, we are based on the theory of Ausubel. We observed that inclusive education is not an easy task to perform, since there are many other existing obstacles in this process, among which we highlight: the difference in levels of learning among students in the same classroom, the lack of support for students with visual impairment (instrumental, environmental and social) and the lack of training for Physics teachers in the specificity of the student with visual impairment. However, the present work does not intend to solve this situation, but rather to collaborate in raising awareness of teachers, so that they can improve their didactics in respect to Physics teaching for students with visual impairment. We believe that these models have demonstrated that it is possible to achieve the expected objectives, since, among the students who kept track on the activity and participated in it until the end of the process, there were reports that the models (tactile-visual models) allowed a better comprehension of the physical concept and a better development of classes.
A percepção da segurança cicloviária em cruzamentos urbanos não semaforizados
(Universidade Federal de São Carlos, 2019-04-03)
Diniz, Claudinei Moreira
;
Ferreira, Marcos Antonio Garcia
;
https://lattes.cnpq.br/2643134259454260
;
https://lattes.cnpq.br/6890747483766944
The increasing number of traffic related accidents has transformed streets into a chaotic environment in terms of safety. In this chaotic environment, cyclists are forced to take their daily commute while being one of the most vulnerable road users. They face several challenges such as the lack of dedicated infrastructure for cycling. This often causes feelings of insecurity in the cyclists, which is considered by several authors as one of the main barriers against riding bicycles in urban commutes. The higher number of traffic conflicts and greater probability of accidents at intersections intensify this feeling of insecurity. Accordingly, the aim of this study is to analyze the cyclist's safety perception at non-signalized urban intersection, with or without cycling infrastructure. To do so, an online survey was used to collect data regarding the perception of safety for 14 different scenarios of traffic conflicts at non-signalized intersections. A total of 458 responses were collected, which were analyzed by descriptive and inferential statistical techniques, and by the application of Ordered Logistic Regression (OLR) of Proportional Odds. Results indicated a tendency to perceive conflicts at intersections with shared lanes as the most insecure scenarios for respondents`, while intersections with cycling track in the median as the safest. Conflicts in scenarios with car driver approaching behind the cyclist and turning right or left are identified as the most insecure scenarios. The OLR calibration indicated that the following variables are significant in explaining safety perception: type of infrastructure and conflict, intersection illumination, pavement markings and signalization, gender, age, driver’s license possession, and type of bicycle user (utilitarian, leisure, and non-cyclists). In conclusion, the objectives proposed were accomplished and results can contribute to the understanding of road safety for cyclists, especially in developing countries.
Princípios da termodinâmica e mecânica: motor térmico de elásticos
(Universidade Federal de São Carlos, 2019-04-03)
Pereira, André Luiz
;
Souza, James Alves
;
https://lattes.cnpq.br/2212240621620011
;
https://lattes.cnpq.br/8365336780915198
Teaching physics has always been a challenge for teachers. It is usually based on expository lessons and application of mathematical formulas, providing only a process of memorization of contents and resolution of exercises aimed to college admission exams. In this perspective the students usually do not see much use in studying Physics, by further worsening the scenario for lecturing and learning Physics. One of the most widely studied methodologies for Physics teaching is the experimentation. Although scientific experiments attract the attention of students, it is almost not applied in the classroom, either for lack of time to check the capabilities of the experiment or lack of proper space to perform the activities. Motivated by a group of students with below-average grades in a private high school in Campinas city, São Paulo state, we developed in this work an educational product in which we consider both theoretical classes and demonstrative experiments in a complementary way. Our mainly objective is to make Physics learning more effective by providing a better student-teacher interaction. Using the investigation as the procedure conducted in the experimentation the student can play an active role in the process of knowledge construction with the teacher as a mediator. Two experiments were set up for this purpose: a pendulum made of rubber band and a massive weight, which was used to show the anomalous dilatation of rubber, and the rubber band heat engine, cited by Richard Feynman in his lectures, to show how a heat engine works according to the laws of Thermodynamics and Mechanics. With these experiments we worked many concepts such as heat, thermal expansion, the laws of Thermodynamics, heat engines, torque, center of mass and many others. Our proposal was successfully applied. The students were motivated for attending the classes, questioning and creating hypotheses through the supervision of the teacher, showing that the methodology used is promising to improve students' motivation and performance in Physics classes.
"Maria que me ensina a ser mulher": religião e gênero no Santo Daime
(Universidade Federal de São Carlos, 2019-04-03)
Benedito, Camila de Pieri
;
Souza, André Ricardo de
;
https://lattes.cnpq.br/7016915324466152
;
https://lattes.cnpq.br/6114351330180363
This thesis is the result of the ethnography performed in the Céu do Gamarra, a religious community of Santo Daime located in the city of Baependi, in south Minas Gerais. Seeking to interpret how gender discourse develops in the community, the research explored how the "feminine" and "masculine" categories are constructed and then observed that they are conceived like essences, in opposition and complementarity, definiyng religious and daily practices of affiliates and affiliated. The construction of this discourse is related to the religious matrices that underpinned the formation and development of the Santo Daime, as well as the historical context that surrounded it. Particular emphasis is placed on devotional centrality to the Virgin of the Conception, a centrality originated from her apparition to the founder Raimundo Irineu Serra. Mary is considered the quintessence of the feminine and, therefore, an archetype to be followed by earthly women, then protagonists of the domestic universe, of sacred and natural motherhood, and the ideals of care and suffering. The thesis also observes how from this polarity also emerges a conception of sacred marriage between the "feminine" and "masculine" forces, which punctuates a heteronormative discourse that values the heterosexual, nuclear, and reproductive family. The research was developed theoretically-methodologically based on the intersection between religion and gender, covered the bibliography on the ayahuasca field, ethnographic immersion, the study of Santo Daime’s liturgical material, semi-structured interviews with leaders and affiliates of the religious community and formulation of content for the community’s website.
Cinética de liberação de clorexidina em nanocompósito de magnetita e quitosana
(Universidade Federal de São Carlos, 2019-04-03)
Mendes, Ana Paula Pais
;
Camargo, Emerson Rodrigues de
;
https://lattes.cnpq.br/7720754304065239
;
https://lattes.cnpq.br/9285279604051301
Nanocomposites are used in several fields of knowledge, including nanomedicine. They are used as drug carriers because of their biocompatibility and biological activity, with possible antimicrobial activity. This study aimed to evaluate the effect of magnetic nanoparticle insertion on a chitosan polymer matrix as carriers of antimicrobial antibiotics. The chitosan suspension was prepared by solubilizing it in 2% acetic acid under constant magnetic stirring at room temperature for 24 hours. The colloidal suspension of magnetite (Fe3O4) was supplied by the company nChem, São Carlos (Brazil). The nanocomposites were prepared in a simple mixing process. Chlorhexidine was added to the nanocomposites under constant magnetic stirring at room temperature. The nanocomposites were obtained as expected and reproducibly. The magnetite nanoparticles were recovered by chitosan and the homogeneous incorporation of the drug into the polymer matrix. The data obtained in the drug release tests were analyzed at foiur different temperatures and it was concluded that the magnetite-chitosan system releases chlorhexidine during the first 2 hours until reaching 60% release by the method described by Krosmeyer-Peppas. After the 2 hours of release, another model goes on to describe the release, the Higuchi model.
Nas margens da presença: a questão do logos em Merleau-Ponty
(Universidade Federal de São Carlos, 2019-04-03)
Andrade, André Dias de
;
Moutinho, Luiz Damon Santos
;
https://lattes.cnpq.br/9475267722538751
;
https://lattes.cnpq.br/1235964081876620
This thesis establish the infrastructure of logos in philosophy of Merleau-Ponty. Firstly we approach de structural aspects of perceptual logic to, utterly, confront this with a general reformulation of sense based on the notion of structure and the development of a new version off phenomenological logos. The research has three fronts that provide a elucidation fr the problems of sense, time and motion. Firstly, we reconstruct the question based on the project of a philosophical rehabilition of perception – called “qualitative turn” – wich has to be conceived as a theory of sense. Secondly, we critically read this fenomenology of percepton and the ideia of “presence” underlying its logos. We show that de descritive and genetical approach of perception, though is based on the disscovery of a eminently positive meaning for the sensorial self-oganisation, it dos not touuch a reconfiguration of logos such as estabslihed by transcendental phenomenology. Finally, we deal with the discovery of a new notion of sense, as “difference”, wich confer autonomy to the logos regarding conscience, besides enabling a new treatment to phenomenality. The broader consequence thiss philosophy is that it renounces to treat logos from a view that corresponds to the “phenomenology of presence”, and só circunscribe it to a “phenomenology of difference” whose constituiton is here desccribed.
Acessibilidade e saúde bucal: itinerários terapêuticos de usuários do Sistema Único de Saúde (SUS) do interior do estado de São Paulo (SP)
(Universidade Federal de São Carlos, 2019-04-03)
Freitas, Lúcia Sabrina de
;
Figueiredo, Wagner dos Santos
;
https://lattes.cnpq.br/5780408703746760
;
https://lattes.cnpq.br/8954757380324834
The present study aimed to investigate how the accessibility to oral health services occurs in two municipalities in the interior of the São Paulo State (SP), using the therapeutic itineraries (called as ITs) as theoretical-methodological reference. Municipalities of Ibaté and São Carlos were chosen, since both are part of the same Regional Management Collegiate (called as CGR Coração), being that, in the process of health regionalization, the Center of Dental Specialties of São Carlos city is a reference for the Ibaté city. Twelve health units participated of this study, being six Basic Health Units (called as UBS) and six Family Health Units (called as USF). Twelve users were interviewed. The data collection was made from a semi-structured interview, a field diary and a non-participant observation. Users of different age groups were interviewed, and in all ITs, the trigger for care search was the perception of an installed problem. However, there was a variation in this trigger according to age, i.e., the dental pain was the trigger for the younger persons, whereas the need for prosthesis was the trigger for middle-aged adults and elderly persons. Five users had systemic diseases: one renal transplant, one with Parkinson’s disease and three with diabetes mellitus and hypertension. In addition, two users were pregnant. No interviewed user correlated their general health with oral health, even with all the efforts of Dentistry to prove the influence of oral diseases on the systemic diseases. The accessibility barriers found in this study were related to those of an organizational, economic and sociocultural nature. The obstacles originated in the entrance of the health services were the scheduling of the first dental consultation and emergency care, both were through the spontaneous demand attendance with the criterion of order of arrival in all units evaluated and with small differences between UBS and USF. On the other hand, the post-entry obstacles were the consultation scheduling in the dental prosthesis specialty, the difficulty in returning to the treatment after a lack and specialized scheduling only in a private clinic. The economic barriers referred to the financial difficulty to access the treatments in private clinics and the impossibility to perform the treatment in the health unit to avoid losing the work day, whereas the sociocultural barriers consisted in the understanding of the public health system as a place for the treatment of people who do not have money to pay for the private, as a favor of the State and, therefore, as a system that cannot receive complaints and improvements. Thus, despite the considerable increase in the supply of oral health services provided by National Oral Health Policy in order for the population has accessibility to these services, it is necessary the reorganization of the work processes developed in the health units so that the integrality to health is the north of oral health practices, besides of the need for humanized care.
Professora cantante, artista mulher: um diálogo entre feminismo, música e educação
(Universidade Federal de São Carlos, 2019-04-03)
Rocha, Karina Paiva
;
Lombardi, Lucia Maria Salgado dos Santos
;
https://lattes.cnpq.br/5697508831302188
;
https://lattes.cnpq.br/2348972208490178
This research aimed to understand the project called Girls Rock Camp Brasil, which is a camp developed with girls between 7 and 17 years old in the city of Sorocaba, in the interior of São Paulo, knowing its contributions to the education of girls. The interest in this theme was born from the author's interest, as a Pedagogy student and singer, in creating interfaces between the fields of Education and Music, having the culture of feminism as an idea that permeates both, with values of equality and respect. Considering that the research addresses bibliographic analysis of non-formal education, music and feminism, its theoretical foundation sought to handle these matters. It had as main authors: Silva e Costa (2018), Alves e Pitanguy (1981), Beck e Guizzo (2003) and Brandão (1981) to understand feminism; Perosa (2006), Sapaterra (2012), Pimenta e França (2013) and Uriarte (2004) to understand how the education of girls happened and the music’s role in the Brazilian context; lastly, for reflecting about the music’s contribution to the transformation of society, including to feminism and to female emancipation, Vanda Bellard Freire (2010), Borges e Paz (2015), Sossmeier e Parizotto (2013), Saraiva (2013), Martins (2013), Araújo e Monastérios (2011), Gelain e Amaral (2017), Ribeiro et al. (2012) and Facchini (2011) were used. The results confirm that the camping promotes a field for reflection and transformation of the girls, allowing a fortification of their self-esteem, empowerment, as well as a greater union between them. In addition, it reveals that the camping helps the school environment where the girls are inserted, by collaborating with ideas of breaking the culture of sexism and encouraging mutual respect between boys and girls.
Defensoria Pública do Estado de São Paulo: profissão e política na atuação em tutela coletiva
(Universidade Federal de São Carlos, 2019-04-04)
Souza, Clarissa Christianne Rodrigues
;
Oliveira, Fabiana Luci de
;
https://lattes.cnpq.br/9487149052862292
;
https://lattes.cnpq.br/5890086535296927
This dissertation investigates the means by which the practice of the Public Defender’s Office of São Paulo on collective and social rights sets up a political role for the institution. This role makes the institution different from the private lawyering and more similar to the political power of the Public Ministry in Brazil and to the activism of the cause lawyering. It also analyses the activism of the public defenders in setting up this institutional role and how they have been proceeding on collective and social rights in both judicial and extrajudicial arenas. The discussion is based on the sociology of professions and recent researches about legal professions and institutions operating in the social rights arena. This study is based on qualitative and quantitative data such as interviews with public defenders, statistics produced by the institution and data from judicial decisions taken between 2009 and 2017 on class actions filed by the Public Defender’s Office of São Paulo. The results show that the legitimacy for proposing class actions is seen as a political power by the public defenders, even though they have been used as a last resource in the negotiation between the State and the social demands. Mostly, the institution has been setting up its legitimacy and strength through the defense of human rights, the closeness to vulnerable people and their social demands and also through extrajudicial means of negotiating solutions.
Incorporação de resíduos de carvão vegetal em argamassas cimentícias
(Universidade Federal de São Carlos, 2019-04-04)
Reis, Marielza Corrêa dos
;
Zampieron, João Vicente
;
https://lattes.cnpq.br/5401235777243446
;
Serra, Sheyla Mara Baptista
;
https://lattes.cnpq.br/8528385567782505
Construction systems require significant amounts of natural resources, however, these are already beginning to present problems regarding the impacts caused by their extraction. The incorporation of agroindustry’s residues, such as charcoal, to cement composites can present solutions to minimize such problems and to take advantage of by-products from other sectors. In addition to being renewable, charcoal has great agricultural and industrial potential. Based on this assumption, the present study aimed to evaluate the potential of the use of charcoal waste (RCV) in partial replacement of fine sand (by volume) on the properties of mortars. For that, tests were carried out to evaluate the physicochemical composition of the RCV and to analyze its pozzolanic potential, without previous beneficiation. Mortar specimens (CP) with RCV were made at 0%, 10%, 20% and 30% in relation to the fine sand, in the water / binder ratio of 0.55. After the cure time of 7, 28 and 60 days, the CPs were analyzed by means of the techniques of resistance to axial compression, tensile strength by diametrical compression, scanning electron microscopy (SEM) combined with X-ray dispersion spectrometry (EDS), X-ray diffraction (XRD), water absorption, apparent porosity and specific mass. The results showed that although the RCVs do not present themselves as pozzolanic materials, their incorporation is feasible, which is confirmed by analysis of variance (ANOVA), where the statistical indices are significant for the 20% content in substitution for fine sand, which produced mortars with compressive strength values around 28 MPa, higher than the reference ones. These results contribute to research that confirms the feasibility of including these residues in cementitious matrixes, which can add value to a material until then without perspective of use. The inclusion of RCV in addition to reducing the waste disposal to the environment makes possible the minimization of non-renewable materials used in construction, contributing to the sustainable development of the sector.
Marcos históricos da EdUFSCar, diagnóstico dos desafios contemporâneos de gestão e apontamentos para uma estratégia futura por meio da Análise SWOT
(Universidade Federal de São Carlos, 2019-04-04)
Lopes, Vitor Massola Gonzales
;
Fonseca, Sérgio Azevedo
;
https://lattes.cnpq.br/2879240108726907
;
https://lattes.cnpq.br/4017168622029989
The university publishing house dates from the medieval period and, from its foundation, historically, it has close relation with the university. Link between the Institution of Higher Education (HEI) and society, the university press is inserted in the market of cultural goods, and its objective, therefore, is to transfer academic scientific production beyond the university campus. In Brazil, the first public university press were born between the 1950s and 1960s, showing a new activity compared to the northern hemisphere, which began to produce from the fifteenth century. In the State of São Paulo, with the exception of EDUSP, the university presses began to appear in the 1980s, at the end of the period of the Military Dictatorship. With the difficult task of keeping up with the public resources of the university that they belong to, the university presses share a very lucrative niche and also run by commercial publishers with better structures and hungry for a highly profitable best-seller. Even though the profit is not their purpose, university presses need a good return on sales of their works to be able to stay in the book business and face the challenges of the present day. This work intends, through a single case study on EdUFSCar, to recover, organize and systematize its historical landmarks, as well as mapping the internal and external factors of its current management. The objective is to make an organizational diagnosis, using the SWOT analysis tool, which identifies the main strengths and weaknesses and the opportunities and threats of the internal and external environments of the publisher. The results generated from this analysis will reveal the levers and problems that should be used and eliminated in the present administration of EdUFSCar, respectively. It is hoped, with this research, to show the evolution of this publisher, from its foundation to the present day, to show the contemporary challenges of its management and to point out strategies for its future.
Os fatores críticos para a sustentabilidade do Lean Manufacturing: revisão sistemática da literatura, estudo de caso e opinião de especialistas
(Universidade Federal de São Carlos, 2019-04-05)
Lopes, Natalia Roberta
;
Godinho Filho, Moacir
;
https://lattes.cnpq.br/6136685270563354
;
https://lattes.cnpq.br/3575543749691837
Lean manufacturing continues to be widespread in the business world as a management philosophy to reduce waste. Despite this, the sustainability of the results of lean initiatives has proved difficult to achieve. There is a limitation on the part of organizations in understanding the factors that influence lean sustainability in all organizational environments. In this direction, the objective of the research was to identify the critical factors for manufacturing companies to sustain their Lean initiatives over time. For this the mixed research method was used, combining the systematic review of the literature, case study and expert opinions. In the systematic review, articles were filtered in scientific journals: Scopus, Engineering Village, Proquest and Web of Science in order to identify in the literature the factors mentioned as critical to sustain lean. Thus, combining the review with snowball methods and expert opinion, we obtained a list of 21 factors. This list was analyzed in the case study with two industries for refinement of the list. Finally, the list of factors passed by the analysis of 5 experts, in the end 19 factors were considered as critical. The results achieved contribute to the professionals have a vision of what aspects should be addressed throughout the Lean journey. In the academic context, the contribution was to compile the lean sustainability factors that are spread in the literature and to show which ones should be explored.
Movimento de paredes de domínio ferroelétricas com luz: descrição teórica e investigação do fenômeno em materiais policristalinos
(Universidade Federal de São Carlos, 2019-04-05)
Pimentel, Jonathan Ordoñez
;
Silva Junior, Paulo Sergio da
;
https://lattes.cnpq.br/7418621942217628
;
Zambrano, Michel Venet
;
https://lattes.cnpq.br/4256279833398263
Ferroelectrics are material exhibiting a spontaneous polarization that may be switched by an electric external field. This behavior is provided to well-known ferroelectric domain walls motion. Recent research has proved the surprising ability to move ferroelectric domain wall under illumination with wavelength of 532 nm incident on a surface of single crystals of Barium Titanate (BaTiO3). In spite of experimental results concerning about this light-matter interaction, it is remarkable a lack of physical insight, as well as possibility to observe if occurrences of motion domain wall is due to single or poly crystal character. By using a phenomenological approaches based on Devonshire-Landau’s theory was possible make a development to describe a polarization-induced switching under light like perturbation of bound and free charge accumulated within domain wall. Accordingly, interactions between photons having lower energy that optical gap and screening charge give rise to fluctuation in depolarization electric field that serve as a driving force to polarization reorientation around the wall. This approach gives a satisfactory explanation to experimental facts observed in single crystals of BaTiO3, in addition, it allows to conjecture a correlation between the phenomenon occurrence with existence of charged domain wall as single crystal as polycrystal. It was prove that BaTiO3 coarse grain ceramics (grain size approx 50µm) contend 90-domains are possible a manifestation of polarization switching induced by light also, in this form, it was demonstrate the size grain dependence with evidence of this light-matter interaction, highlighted again the role-play of charged ferroelectric domain wall. In this way, here has made an extend to polycrystal materials that could lead to developed the next generation of photo-stimulated ferroelectric devices.
Desenvolvimento de imunoensaio eletroquímico para detecção de biomarcadores proteicos utilizando partículas magnéticas e arranjo de eletrodos descartáveis para o diagnóstico de câncer de próstata
(Universidade Federal de São Carlos, 2019-04-05)
Proença, Camila dos Anjos
;
Faria, Ronaldo Censi
;
https://lattes.cnpq.br/8659496864305621
;
https://lattes.cnpq.br/5751558616837197
This work describes the development of electrochemical immunoassays using electrode disposable devices made from low cost materials as an alternative for detection of the biomarkers p16, GSTP1, PSA and CYFRA-21-1 for prostate cancer diagnosis. In the immunoassays developed, magnetic micro/nanoparticles were used in order to provide the capture and separation of the biomarker and the amplification of the analytical signal allowing to reach high selectivity and low limits of detection. For this propose, disposable microfluidic cell was developed and constructed containing 8 carbon-based working electrodes, an Ag|AgCl electrode as a pseudo reference electrode and a carbon electrode as an auxiliary electrode. Three different immunoassays were developed. The first work consisted in the development of an electrochemical immunoassay for the detection of the p16 biomarker. Immunoassays were performed after optimization of the parameters, such as incubation time and flow rate used in the microfluidic system. The calibration curve was prepared in calf serum with p16 concentration in the range of 1.38 to 27.7 fg mL-1. The device presented detection limit (LoD) of 0.04 fgmL-1 and sensitivity of 11.6 nA (fg/mL)-1. The second method consisted of the simultaneous detection of PSA and GSTP1 biomarkers. Peak currents obtained showed a linear response between 0.7 - 27.8 fg mL-1 for GSTP1 and 0.28-277 fg mL-1 for PSA. The sensitivities reached for GSTP1 and PSA were 22.4 nA (fg/mL)-1 for both biomarkers and the LoDs were of 0.15 fg mL-1 for GSTP1 and 0.16 fg mL-1 for the PSA. Finally, the third immunoassay consisted of the application of synthetic nanoparticles (MNPs) of Co0.25Zn0.75Fe2O4 (CoZnFeONPs) and Fe3O4 (FeONPs) used to mimic the enzyme peroxidase. The use of modified carbon work with graphene oxide (GO) and MNPs allowed the electrochemical detection of CYFRA-21-1 with LoDs of 0.30 fg mL-1 and 0.19 fg mL-1 for FeONPs and CoZnFeONPs, respectively. Finally, it was possible to test the immunosensor in serum of patients provided by the Hospital de Amor from Barretos city obtaining concordant results with ELISA method, which showed that the device is a promising choice for diagnosis of prostate cancer in relation to traditional methods as ECL and ELISA.