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Fotobiorreator de iluminação interna para produção de biomassa algal e seus metabólitos
(Universidade Federal de São Carlos, 2018-09-08)
Saadi, Farid Nazih
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Artur Neto, Placeres
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https://lattes.cnpq.br/5881687804279355
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Lombardi, Ana Teresa
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https://lattes.cnpq.br/6737850858443813
Microalgae are organisms with potential applications in the pharmaceutical, food and cosmetic industries due to their ability to produce high added value biomolecules such as fatty acids and volatile compounds. For their physiological development, the algae depend on the availability of carbon dioxide, nutrients and sufficient light for the photosynthetic process to occur. As there is an increase in cell concentration the internal lighting of the algal cultures can be impaired by self-shading. The deficiency in the light supply to the cells can cause a decrease in the physiological yield, affecting the growth and synthesis of the biomolecules. The aim of this study was to develop a new cylindrical photobioreactor with internal LED illumination intermediated by a light intensity controller in order to improve the light availability in all phases and densities of the culture. This would lead to high production of algal biomass and its metabolites that can be used by the various sectors of industry. The system we developed has maximum light incidence of 2775.3 W m-3 and an illuminated area of 0.0314 m2. Defining the BG11 culture medium as the standard for this study, increasing concentrations of this medium (1x, 2x and 10x BG11) were tested in Chlorella sorokiniana cultures. Cellular health was monitored with measures of photosynthetic yield (Phyto-PAM) and the results showed yield of ~ 0.69 in all treatments. This can be considered a confirmation that the physico-chemical conditions provided by the photobioreactor were sufficient to meet the microalgae needs. The cell concentration reported as dry biomass showed that the 1x and 2x BG11 culture media rendered similar biomass, but the 10x BG11 resulted in higher biomass 6.87 g L-1 even though similar cell density (cells per mL) were obtained in comparison with BG1x and 2x. This lead to the interpretation that BG11 10x produced 200% heavier cells than the other treatments and a productivity of 0.36 g L-1 day-1. The system was tested for the growth of Curvastrum pantanale and a picoplankton species, and the results confirmed the versatility of the photobioreactor proposed for the cultivation of other species.
Currículo e integração curricular em um curso de graduação em medicina: concepções manifestadas pelos docentes que o vivenciam
(Universidade Federal de São Carlos, 2018-09-10)
Rodrigues, Aline de Fatima Cruz
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Lima, Emília Freitas de
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https://lattes.cnpq.br/5515637339275988
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https://lattes.cnpq.br/2273183179891834
The present research aims to describe and analyze the relationship between the proposal of integrated curriculum of the undergraduate course in Medicine, Federal University of São Carlos (UFSCar) and the conceptions manifested by its teachers on curriculum and curricular integration. For this, the study of the Pedagogical Project of this course was carried out, with emphasis on its reference framework and its structural framework. The research was carried out by means of interviews with 11 teachers who work in the course, being chosen based on predetermined criteria. These criteria took into account the duration of the course and the activity / cycle in which they acted in the course and were determined based on the hypotheses that: a) the teachers who acted in the course from the beginning would have conceptions more coherent with what is proposed in the PPC than the newcomers; b) there would be a difference between the conceptions of teachers who work in the different educational cycles of the course. After the interviews, the data were transcribed literally and then organized, tabulated and analyzed in the light of the theoretical framework used. It was possible, through this research, to analyze the type of curricular integration proposed in the mentioned pedagogical project of course and to describe the conceptions of curriculum and curricular integration manifested by its teachers. As results, we find conceptions of curricular integration that approximate what is foreseen in the PPC of the course, but according to the participants of the research, this integration is not effective as is foreseen in the PPC. It was also possible to verify that all the interviewees participated in training activities when they entered the course, and that most of the teachers interviewed conceive the curriculum only in its formal dimension, that is, as an official document. It was also possible to verify that the participants of the research did not oppose what is included in the Pedagogical Project of the course, but affirm that this project needs to be revisited and reformulated based on its more than ten years of operation, stating what has been successful and adapting what is not in accordance with the provisions of the PPC. Finally, the hypotheses presented were not confirmed, since all 11 teachers interviewed presented conceptions of curricular integration very close to what is presented in the PPC of the course, regardless of the activity / cycle in which they work and the year of admission as a teacher.
O humor na música do cinema silencioso: uma análise das representações musicais destinadas ao acompanhamento de situações cômicas
(Universidade Federal de São Carlos, 2018-09-10)
Martins, Emerson
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Miranda, Suzana Reck
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https://lattes.cnpq.br/8566012598222563
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https://lattes.cnpq.br/6246423044323843
This research aims to comprehend the humor configuration in silent film musics in a very specific way: in the musical representations used in pieces and/or themes that intended to keep up with comic situations of movies which were published in New York in the 1910’s. In other words, it analyzes how some compilations and indications of musical accompaniment suggested humorus and laughter, bringing up the recurring patterns and the possible origins of these sonorous artifices. The selected sheet musics were studied in details from a multidisciplinary perspective in order to understand more the composition strategies than the formal elements proper, once that the improvisation was frequent during this time. Thereby, it was possible to list the common and recurrent elements, as well as the main strategies used by each composer, in view to elaborate a kind of mapping of the cliches and standardization disseminated by this musical practice.
Formação continuada em Matemática para o pedagogo atuante no interior do Estado de São Paulo: sentidos explicitados por professores da Educação Infantil
(Universidade Federal de São Carlos, 2018-09-10)
Alves, Alessandra de Fátima
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Sousa, Maria do Carmo de
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https://lattes.cnpq.br/6637658562543505
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https://lattes.cnpq.br/0763781488302528
The purpose of this research is to understand and analyze the meanings explained in relation to the Mathematics training courses held in 2016 by the pedagogical teachers working in Child Education located in a city in the interior of the state of São Paulo. The research is qualitative. The question that led to this was: "What were the meanings explained in relation to the Mathematics courses held in 2016 by teachers who teach in Early Childhood Education in a context that involves continuing education?" The instruments used for data collection were semi-structured questionnaires and interviews with teachers inserted in the process of continuing training outside working hours in a municipal school. The theoretical reference considers the studies of Leontiev (1978, 1983); Vigotski (2009); Imbernón (2009, 2010, 2011, 2012); Lorenzato (2006, 2011, 2012); Hengemuhle (2008); Vargas (2014), Gladcheff (2015), among others. They stand out in the definition of senses studies pointed out by Leontiev (1978, 1983) and in the continued studies studies of Imbernón (2009, 2010, 2011, 2012). The analysis of the data indicated that the directions explained by the pedagogues refer to: a) methodology; b) mathematical contents. In the methodology teachers emphasized as being fundamental for contribution in teacher training, because it is linked to classroom practice. In the mathematical contents, the explicit meanings are related to what should be taught in Early Childhood Education, being the contents connected with the methodology, which denotes that the relation that the teachers create with the teaching of mathematics is very related to the professional knowledge, reflection of the teaching practices and the sharing of experiences, during the teacher training carried out in the context in which the teacher acts.
Cerâmica de titanato de lantânio e lítio: sistematização de obtenção e crescimento de grão orientado induzido via cristais de aluminato de lantânio
(Universidade Federal de São Carlos, 2018-09-10)
Oliveira, Rafael Bonacin de
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Andreeta, Marcello Rubens Barsi
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https://lattes.cnpq.br/7904227795652627
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Souza, Dulcina Maria Pinatti Ferreira de
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https://lattes.cnpq.br/4100119317525940
The research based on ionic conductive ceramics is part of the scientific innovation efforts applied to the industry of solid state batteries and sensors, which are fundamental for the development of new, more efficient and sustainable technologies. One of the most relevant examples found in the current scientific literature is the lithium lanthanum titanate (LLTO) ceramics, whose ambient temperature conductivity is one of the largest available among solid state lithium conductive materials. However, ceramic processing difficulties and controversies about the compositional nature of this ceramic material still unclear to the scientific community. Even so, the success in the use of this ceramic material, as electrolyte or pH sensor, leaves no doubt about its promising character in scientific and technological innovation on diverse fields of applications. The aim of this thesis is to present a systematic study on the ceramic processing of LLTO (x ≈ 0.10, 0.11 and 0.12) ceramics, based on the motivation for technological application of this compound as electrolyte or solid state pH sensor. The introduction of single crystals in the ceramic processing were also investigated, culminating in development of a LLTO crystal/ceramic composite with crystal fibers from lanthanum aluminate (LAO). The results show the structural and microstructural evolution from the LLTO ceramics, sintered at temperatures above 1250 °C, strongly correlated to the overfiring phenomena with the electrical properties having an inversely proportional behavior as a function of the sintering temperature. The formation of textured LLTO regions around the LAO crystals is also showed. The nature of this region is chemically and structurally very similar to the ceramic matrix, however, its creation results in composites with ionic conductivities about 5 times higher than the LLTO.
Work hard, party harder: o trabalho dos DJs no lazer noturno paulistano
(Universidade Federal de São Carlos, 2018-09-11)
Pina, Marcos Roberto Mariano
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Lima, Jacob Carlos
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https://lattes.cnpq.br/9244132532446607
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https://lattes.cnpq.br/7763913593471267
This research analysed the work of DJs in the city of São Paulo, who are responsible for the creation and presentation of musics resulting from interventions in existing musics. The discussion revolved around the values articulated in the process of identifying DJs as workers, considering the distinctive elements of artistic and musical work, historically distant from traditional representations of productive work. This study case opens the way to rethink conceptual pairs of sociology of work, such as polyvalence/specialization, formality/informality, creativity/reproducibility, autonomy/subordination. DJs are inserted in the context of an increasing valuing of self-employment, where what was previously perceived as a precarious situation, now ends up positively resignified in the semantic field of ‹ cultural entrepreneurship ›. The trajectories of the DJs point to a borderline position, located between the discourses of the ‹ professionalization › of the musical work, as a collective effort of regularization, and the discourses of the maintenance of the creative autonomy. Social networks play a leading role in the access of DJs to the market, explaining the relevance of informal partnerships for surveying the presentation opportunities. It is an activity that has always endured the direct consequences of intermittency and informality, born in a context of flexibility, in which the ideals of learned skills and innate ‹ talent › are confronted. The research methodology was qualitative, based on field observation, visiting DJs presentation from different musical styles in São Paulo, as well as semi-structured interviews.
Usos e potenciais das metodologias ativas em EPS pelas equipes de saúde: estudo de caso
(Universidade Federal de São Carlos, 2018-09-12)
Lemos, Felipe Magalhães
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Silva, Geovani Gurgel Aciole da
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https://lattes.cnpq.br/6146469366214279
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https://lattes.cnpq.br/0462454382974231
The objective of this study was to analyze how the process of Permanent Health Education in the DRS XIV region occurs. As a SUS policy, the Permanent Health Education became a powerful tool for the implementation of Primary Health Care. The research was based on the principles of qualitative research and used interviews with health secretaries and participant observation in meetings of PHE, as a source of data collection. For the interpretation of the data, the technique of content analysis was applied. Two themes were found: (i) What is or is not permanent education; (ii) About the valuation of PHE. In the first theme, the sub-themes "Knowledge as a focus of practice" and "Modus operandi" show that 85% of secretaries and 100% of Health Unit workers understand Permanent Health Education as Continued Education and that 45% of secretaries expect proposed by DRS XIV. In the sub-theme on the valuation of the PHE it was noticed that there is some valuation on the part of some secretaries, but that in general this valuation does not occur, sometimes by economic impossibilities. Only two secretaries showed knowledge about Active Learning, and the practices observed were not guided by these methods. It was observed that there is evolution in the process of implementation of the Permanent Health Education practices, although most of the secretaries have only changed the name of the practices and maintained the actions of Continued Education. This work presents results that can help to change PHE practices through the use of Active Learning, helping to strengthen the work environments and guarantee the rights of SUS users.
Descrição de uma zona híbrida e mecanismos de isolamento reprodutivo entre duas espécies de caboclinhos (Sporophila Pileata e S. Bouvreuil) (aves: passeriformes) e suas implicações para conservação
(Universidade Federal de São Carlos, 2018-09-13)
Medolago, Cesar Augusto Bronzatto
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Francisco, Mercival Roberto
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https://lattes.cnpq.br/4305313620456233
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https://lattes.cnpq.br/9388754660245476
Hybridization is often a natural process that plays an important role in the evolutionary process among many species. On the other hand, when human environmental changes cause the phenomenon, it can result in detrimental effects on the species involved, leading to biodiversity loss. Several mechanisms can shape a hybrid zone, keeping it stable, thus avoiding the homogenization of parental taxa and, consequently, the disappearance of one or them both. Understanding the mechanisms that shape the hybrid zones contributes with the knowledge of the evolutionary history and provides subsidies to draw of conservation plans. Several autors have studied hybrid zones in birds, but few have directly accessed nests and relationships between adult individuals. Birds of the genus Sporophila form a conservation interest group due to high number of threatened species. The “capped group” (capuchinos) consists in 12 little species of seedeaters very similar in shape, having their main differentiation in the plumage colour of the adult males. Several species migrate and nest in specific sites and often in sympatry, but the hybridization of species in nature has never been confirmed. This study describes the first hybrid zone between two species of capuchinos. To confirm the presence of hybridization, we studied three areas in State of São Paulo, with reproductive populations of S. pileata and one of which is also a reproductive site of S. bouvreuil. We sequenced 91 adult individuals for the mitochondrial gene COI including individuals with the phenotype of each species, females and individuals with intermediate plumage. The haplotypic distribution varied between the areas and in the contact area between the species all phenotypes presented both haplotypes (SBO), evidencing the hybridization. Through microsatellite markers, we observed the presence of two groups within the SBO population, with 15 potentially pure individuals for S. bouvreuil and 14 for S. pileata. We confirmed the paternity of offspring of two couples, whose individuals had different mtDNA haplotypes and among individuals with q<0.90, showing that hybrid individuals are fertile. Our data confirms the hybrid zone between the the capuchinos and the fertile of hybrid individuals. Although there are no individuals with S. bouvreuil phenotype in the other areas, the presence of individuals with intermediate plumages and mtDNA haplotype of the species indicates an area of gene introgression in the other areas, due to the dispersion of hybrids.
Mineração de regras de associação espaço-temporais temáticas aplicada a imagens de explosões solares
(Universidade Federal de São Carlos, 2018-09-14)
Silveira Junior, Carlos Roberto
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Santos, Marilde Terezinha Prado
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https://lattes.cnpq.br/9826026025118073
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Ribeiro, Marcela Xavier
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https://lattes.cnpq.br/0300141044144026
Introduction. Space weather analysis is a complex task that involves spatiotemporal data from satellite images added to data from daily bulletins. These data are characterized as time series of georeferenced images and time series of semantic data (alphanumeric data describing the images), respectively. The mining of association rules can aid in the analysis of these data as a mechanism for revealing new and useful standards for the domain expert. However, existing spatiotemporal association rules mining methods are still limited and, as a consequence, they do not adequately meet expectations for extracting patterns that relate spatiotemporal information to images and semantic data. Goal. Therefore, this work aims to support the analysis of space climate from the development of a method of mining of spatiotemporal association rules that allows to relate solar data semantics and visual. The focus is a series of solar images from satellites. Scientific contribution. A new method was developed for extracting significant patterns from satellite imagery series. Called Solar Miner, this method is composed of: a new process of Extraction Transformation Data load - directed to the solar domain - able to work and relate spatiotemporal data with image processing. A new mining algorithm for spatiotemporal association rules, capable of working with this set of data in an acceptable time. And a new classifier that uses the space-time rules to determine the future behavior of new solar data. The proposed mining algorithm advances the current state-of-the-art mining area of association rules by dividing the application of spatiotemporal constraints into two different stages of processing: spatial constraints are applied during the extraction of frequent itemsets and application of temporal constraints during the generation of spatiotemporal association rules. In this way, it is possible to obtain rules that represent the evolution of a given set of events and how they relate to each other. Finally, these rules are used by the associative classifier that was proposed in this work to predict solar behavior based on its current visual characteristics. Results. The proposed method generated rules that were used for the classification, presenting a precision of up to 87.3% in the classification of solar images, being that this value of precision varies with the characteristic extractor used to represent the images. The higher precision (87.3%) was obtained using SURF as extraction of characteristics and the less precision (82.7%) was used the Histogram as extractor of characteristics. The results obtained were analyzed by the domain expert who evaluated how effective and valid the proposed method.
Estudantes com Transtorno do Espectro do Autismo (TEA) na escola: desafios para a ação educativa compartilhada
(Universidade Federal de São Carlos, 2018-09-14)
Barbosa, Marily Oliveira
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Caiado, Kátia Regina Moreno
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https://lattes.cnpq.br/0803778280883949
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https://lattes.cnpq.br/5532748263640890
The entrance of students with Autism Spectrum Disorder (ASD) in the regular school is relatively recent and causes challenges, uncertainties and doubts in educators. The portion of students with ASD who choose the regular school, need and have the right to a quality schooling that promotes the maximum development of their potentialities. Thus, these students need teachers to change their teaching work. To do this, they need teachers to use differentiated methodologies. In view of this, the general objective of this study is developing and evaluating an intervention based on participant research, in order to broaden the shared educational work and to improve access to the curriculum for students with ASD. The specific objectives are: to know the teaching work proposed and performed for the student with ASD in the common classroom and in the Specialized Educational Assistance (SEA); to problematize the process of schooling of the student with ASD with education professionals and with the school support professional; to develop pedagogical dialogues with education professionals and school support professionals in order to promote changes in the schooling process for students with ASD. This study is based on the dialectical historical materialist perspective with a focus on historical cultural psychology and historical-critical pedagogy. Participant research involved the ESA teacher, the classroom teacher, the pedagogical coordinator, the school support professional, the director, and the school vice principal. The instruments used were: documentary research; observation with field diary and video recording; interview; and sessions of pedagogical dialogues with simple autoconfrontation. The data were analyzed in the thematic axes: schooling process for students with ASD; interaction between school professionals and students with ASD; and movement of the school in the development of the participant research. The results pointed that one of the barriers to the schooling of the student with ASD is the action of professionals, mainly regarding the fulfillment of the prescribed ones in their professional functions, when their actions are neglected or delegated to others, there are barriers that hinder the academic development of the student. In addition, it takes joint planning and teacher articulation. When there is individualized educational planning for the TEA student along with the common curriculum and the goals set out by teachers and families, there is possibility of academic development in regular school. It is necessary to carry out new studies on this topic, expanding the sample of teachers and students with ASD, making possible the construction of new knowledge necessary for the modification of the Brazilian educational realities.
Educação especial no município de Sorocaba/ SP: os contextos das políticas e o direito à educação
(Universidade Federal de São Carlos, 2018-09-15)
Públio, Patrícia Lopes Ramos
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Lima, Paulo Gomes
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Caiado, Katia Regina Moreno
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https://lattes.cnpq.br/3931921890850433
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https://lattes.cnpq.br/5109357037661496
Este estudo teve como objetivo investigar a atual estrutura organizativa e os serviços de educação especial nas escolas públicas e nas instituições especializadas credenciadas como escolas que funcionam no município de Sorocaba, São Paulo; bem como apresentar a análise do contexto das políticas de educação especial na rede municipal, no período de 1988 a 2016, buscando compreender as produções e negociações que, permeadas pelos seus significados, atuam na garantia do direito à educação. A pesquisa é embasada pela abordagem do ciclo de política, formulada por Stephen Ball, que destaca a natureza complexa e controversa da política educacional. Os resultados revelam que as escolas especiais privadas, com recursos públicos, detêm o maior número de matrículas dos estudantes com deficiência e transtornos globais do desenvolvimento. Na rede municipal, a política de educação especial buscou ajustar-se às configurações das políticas nacionais e internacionais, mostrando o quanto o contexto de influência (BALL, 2001; BALL; MAINARDES, 2011) foi determinante. Em cada período, as ações desenvolvidas pela Secretaria Municipal da Educação foram se modificando, fundadas nos diferentes projetos governamentais. No entanto, por não se consolidarem como uma política pública municipal, evidenciam processos de rupturas no direito à educação dos estudantes público-alvo da educação especial.
Desenvolvimento de compósitos híbridos de epóxi/nanotubos de carbono/cargas minerais e avaliação das propriedades elétricas e termomecânicas: efeito da viscosidade e do solvente
(Universidade Federal de São Carlos, 2018-09-17)
Tokobaro, Paulo Eduardo Asito
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Larocca, Nelson Marcos
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https://lattes.cnpq.br/5019620288988253
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Pessan, Luiz Antonio
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https://lattes.cnpq.br/8276650236213537
In this research project, epoxy/carbon nanotubes/mineral fillers hybrid nanocomposites were produced using a high energy sonication process. Moreover, two epoxy resins based on DGEBA with different viscosities were used, and the process with solvent (acetone) were carried out. Therefore, the effects of the mineral fillers (montmorillonite, sepiolite and calcium carbonate), acetone and the resin viscosities in the electrical and thermomechanical properties of the nanocomposites were evaluated. The acetone assisted the carbon nanotubes network formation, decreasing the percolation threshold from 0.08 wt% to 0.05 wt% of nanotubes in the higher viscosity epoxy samples. Moreover, the electrical conductivity increased one order of magnitude, raising from 1.15 x 10-5 S/m to 1.94 x 10-4 S/m in the composition with 0.1 wt% of carbon nanotubes. Montmorillonite and sepiolite did not show a sinergistic effect with nanotubes, whereas good results were achieved with calcium carbonate in some compositions. The composition with the higher viscosity resin, 0.1 wt% of carbon nanotubes and 1 wt% of calcium carbonate using acetone reached an electrical conductivity of 1.28 x 10-3 S/m, 1 and 2 orders of magnitude higher than the compositions with 0.1 wt% of carbon nanotubes with and without the use of a solvent, respectively. The lower viscosity resin nanocomposites showed intermediate electrical conductivities if compared to the values of the higher viscosity resin with and without the use of a solvent. The morphology was important in the results, since the nano- and micromectric dispersion together influenced the electrical properties. The nanotubes did not influence the thermomechanical properties, keeping the E’ and Tg values. However, the mineral fillers increased the nanocomposites glass transition temperatures.
Avaliação do processo de vulcanização inversa visando a aplicação na produção de fertilizantes
(Universidade Federal de São Carlos, 2018-09-17)
Valle, Stella Fortuna do
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Oliveira, Cauê Ribeiro de
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https://lattes.cnpq.br/5321313558714462
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https://lattes.cnpq.br/0243366748928079
Sulfur (S) is an essential macronutrient for crop development, nevertheless, its deficiency in agricultural soils has become increasingly alarming in the last decades. Despite elemental sulfur (S8) being a widely utilized commercial alternative, plant uptake is only possible after its biological oxidation to sulfate (SO42-), a slow process that considerably reduces the compounds efficiency. The present research proposed the synthesis of a new sulfur fertilizer based on the chemical modification of S8 rings into a linear structure, more available to the oxidizing microorganisms. In order to do that, the copolymerization technique entitled inverse vulcanization was conducted, which resolves S8 processing issues while also applying environmentally sustainable principles. Chemically stable and functional polymeric-sulfur products were obtained via copolymerization between S8 and soybean oil, and copolymers with porous structure were also prepared using NaCl as porogen agent. Physical-chemical characterizations exhibited the structural and morphological changes. FTIR showed the absence of bands related to C=C bonds in the products spectra and the appearance of S-S stretching band, while XRD exhibited the materials amorphous character. DSC revealed that part of the sulfur was not converted into the polymer, remaining dispersed in the matrix as S8. Oxidation experiments in submerged cultivation with A. niger proved the polymeric-sulfur materials are capable of significantly improving the oxidation process, with percentages more than 50% superior than the ones reached by S8. The oxidation test in soil revealed that the porous structure greatly enhanced the polymer efficiency, producing 1818% more sulfate than S8 in 58 days of incubation. The hydrocarbon content in the materials also contributed for the better performance as a source of carbon and energy for the oxidizing microorganisms. Based on these results, the developed materials show great potential as multifunctional sulfur fertilizers, with ideal physical-chemical and processing properties for this kind of products and agronomic capacity to increase sulfate availability for plant uptake.
Avaliação comportamental de camundongos expostos ao teste de aversão condicionada ao contexto induzida pela interação social agressiva
(Universidade Federal de São Carlos, 2018-09-18)
Penagos Gil, Jeimmy Marion
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Souza, Ricardo Luiz Nunes de
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https://lattes.cnpq.br/2475842684688693
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https://lattes.cnpq.br/1550425716406903
Rodents exposed to social defeat stress exhibit hormonal, behavioral, and autonomic responses called defense reactions. This study sought to conduct a behavioral validation of a context aversion generated by social defeat test. Ninety-eight male albino Swiss mice were habituated for 10 minutes for three consecutive days to an apparatus, containing a tunnel-bound burrow, which leads to a surface (divided by a wire mesh) that has two parts of the same dimensions : Surfaces A (site of social interactions with physical contact) and surface B (location of social interactions without physical contact). The burrow, the tunnel and the surface A are separated from each other by guillotine doors. From the 4th to the 7th day, the animals were distributed in: (a) control group (animals exposed to social interaction with non-aggressive conspecific), (b) defeated group (animals exposed to social interaction with a dominant conspecific), exposed to 5 minutes of sensory interaction. In this interaction an aggressor or non-aggressor mouse was placed on surface B separated from the other animal by the wire mesh, followed by social defeat or non-aggressive interaction on surface A for 3 minutes. Subsequently, aggressive or non-aggressive animals were placed on surface B for a further 5 minutes, to the adapted test of interaction with the conspecific (same context where they were habituated). Following the same protocol, but in a new context (social interaction box), group (c) control - new context was exposed to social interaction with a non - aggressive cospecific, and group (d) defeated - new context was exposed to interaction with a dominant co-specific. On the eighth day, all animals were individually exposed to the Adapted test of interaction with the conspecific for 10 minutes, without the presence of the coespecific, but containing a portion of the sawdust of their housing cage. On the third day of Habituation and on the Day of Reexposure, the following measures were recorded: frequency of entrances and time spent in the burrow, tunnel and surface A; frequency and time of rising and grooming; SAP total time and time to dig on the surface. When compared to the Hab stage, on the eighth day the GD had a decrease of rising, the permanence time on surface A and excavation of the sawdust, as well as increase in the frequency and time of grooming in the burrow and in the frequency of total SAP stretched. Analysis of the results did not reveal any signs of environmental avoidance in GC, GDn or GCn animals. Our results showed that the use of four social defeats preceded by or followed by sensory exposure to the aggressor opponent causes aversion conditioned to the context of the clash.
Delegacia Eletrônica: uma inovação da polícia civil do estado de São Paulo
(Universidade Federal de São Carlos, 2018-09-18)
Florencio, Patricia Fernandes de Souza
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Fonseca, Sérgio Azevedo
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https://lattes.cnpq.br/2879240108726907
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https://lattes.cnpq.br/1311549900424023
The concept of the Electronic Government (e-gov) leads us to consider that the Information and communication technology (ICTs) are applied at various levels of government, especially the evolution of public services. The entrepreneurial State appropriates the theories of innovation and is a fundamental player in the development of society. The search for excellence in the provision service led to the creation of the Electronic Police Station by the Civil Police of the State of São Paulo. Seeking to contribute with the innovation studies in the public management. This work identifies solutions adopted to overcome of difficulties encountered in the implementation of this pioneer project in the State of São Paulo to serve as a reference for future developments, provide context within the models of public management, and address innovation paradigms. Through of qualitative research of exploratory character, the single case study was used by interviews and access to several documents. As a result, after the content analysis, we have the presentation typification of the object under the light of innovation, relating it with the management models and demonstrating the way of overcoming the barriers encountered.
Vozes do sucesso: uma análise dos discursos sobre os vícios e virtudes da voz na mídia brasileira contemporânea
(Universidade Federal de São Carlos, 2018-09-18)
Soares, Thiago Barbosa
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Piovezani Filho, Carlos Félix
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https://lattes.cnpq.br/1677609008094603
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https://lattes.cnpq.br/8919327601287308
This paper analyzes discourses about what can be called the voices of success produced and / or conveyed by the great contemporary Brazilian media. More precisely, we describe and interpret the process of meaning production in statements made and formulated by Brazilian media discourses that manifestly deal with the voice of subjects whose success stems from their vocal performance, especially in the context of music. Thus, when we consider the postulate of the Discourse Analysis formulated by Pêcheux (2009) that subject and meaning are at the same time constituted in the historical movement, we understand that the words about the voice of success produce, at the same time, the senses and the subjects inside. Before this picture, we investigate what is said and how the voice is stated in the discourse of success in the current Brazilian society and the differences in the treatment of the voice of those who figure in the media world. Specifically, we aim to understand what distinctions may exist in terms of the production of meanings of the voices of success when disseminated by specialized or traditional, conservative or progressive vehicles of medium and large circulation. To do so, we analyzed a corpus consisting of texts from Rolling Stone, Billboard, Carta Capital e Veja and the Folha de São Paulo and O Estado de S. Paulo newspapers, published between January 2010 and December 2015. From this, we verified which is said of the voice, especially in the mainstream media, in order to reproduce inequalities and support various effects of sense of success in texts with massive circulation. In view of this, we find that there is a silencing of stigmatized voices within the media universe and, as one of its repercussions, there is a symbolic constellation in the collective imaginary, on which the reproduction of the statements of the voices of media success weighs. We observe the existence of a vocal aesthetic whose origin is at the junction of the cultural entertainment industry with the mainstream media, aiming at the dissemination of the voices of success. The methodological procedures adopted in the development of this study are based on qualitative research, in the realization of which we seek to identify regularities / irregularities, continuities and discontinuities of linguistic-discursive units of utterances within relatively distinct ideological orientations concerning speeches about subjects' voices of media success.
A motivação de alunos na preparação e demonstração de experimentos para a divulgação de química: um olhar a partir da teoria da autodeterminação
(Universidade Federal de São Carlos, 2018-09-19)
Faitanini, Beatriz Derisso
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Bretones, Paulo Sérgio
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https://lattes.cnpq.br/0016646045895716
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https://lattes.cnpq.br/4716307148937666
This research had as its main objective the study of the motivational profile of students from the first year of High School in a private school of São Carlos during the completion of a choice process, preparation and demonstration of experimental practices of Chemistry. For understanding of the motivation in the school context it was used as a theoretical reference the Self-Determination Theory, outlining six motivational levels which an individual may present, proposing a self-determination continuum of self-determination. To collect data two questionnaires were used, an open-ended and the other using the Likert scale, applied before and after the completion of a process, and the meetings filming. The open-ended questionnaire aimed to evaluate the satisfaction of the basic psychological needs of the students during the research; the questionnaire using the Likert scale aimed to obtain the students' motivational profile. The data analysis showed that before the implementation of this project the students had higher MR values for the Integrated Regulation and lower for the less self-determined motivational forms. After the project was carried out, the MR values for Integrated Regulation and Intrinsic Motivation increased even more, while the values for less self-determined forms, such as amotivation, decreased, showing that there were – in reference of learning motives - a significant variation in the students' motivational profile. The individual analysis of the students showed that there was a significant change in the motivational orientation of three students, while the others remained with the same motivational orientation, mainly because they were students who declared themselves motivated to study Chemistry even before the implementation of the project. We also observed that the data provided elements that confirm that the occurrence of situations that favor the satisfaction of the basic psychological needs brings the enthusiasm of the students in situations considered favorable to the promotion of intrinsic motivation. Thus, the data collection instruments showed themselves as adequate for the objectives of this work, but it is still important to continue research on the motivation of students in chemistry classes, mainly to understand how the satisfaction of basic needs can influence this change of motivational profile and what factors influence the satisfaction of these needs.
Estudo de microscopia eletrônica de transmissão in situ de nanoestrutura de óxidos mistos em altas temperaturas
(Universidade Federal de São Carlos, 2018-09-19)
Maya Johnson, Santiago
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Leite, Edson Roberto
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https://lattes.cnpq.br/1025598529469393
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https://lattes.cnpq.br/1898909730588076
This work addresses the characterization of the high temperature reactions between different nanoparticles oxides, CeO2-ZrO2 and CeO2-SnO2, by the direct observation of the phenomenon by in situ Transmission Electron Microscopy (TEM). The nanoparticles were synthesized via three different synthesis methods, hydrothermal, solvothermal, and solvent-control. The changes in the size and morphology of the nanoparticles, the interactions that lead to processes of sintering / densification, and the phase transformations that occur during the experiments were documented. Also, a detailed study of the influence of the electron beam current density on the sample, and its synergism with the temperature during the in situ experiments was performed. The interactions between the oxide metal nanoparticles and the films of the TEM grids showed a great influence during the in situ tests at high temperature. For the experimental setups tested in this work, the main mechanism of interaction between the nanoparticles was oriented attachment.
Predicting the direction, maximum, minimum and closing price of daily/Intra-daily bitcoin exchange rate using batch and online machine learning techniques
(Universidade Federal de São Carlos, 2018-09-19)
Arguelles, Dennys Christian Mallqui
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Fernandes, Ricardo Augusto Souza
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https://lattes.cnpq.br/0880243208789454
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https://lattes.cnpq.br/6617444730810557
Bitcoin is the most accepted cryptocurrency in the world, which makes it attractive for investors and traders. However, the great challenge in predicting the Bitcoin exchange rate is its high volatility. Therefore, the prediction of its behavior is of great importance for financial markets. In this way, in recent years, Few studies were proposed based on the use of machine learning techniques to predict the direction of their exchange rate, albeit with low precision. Therefore, as a first contribution of this paper, it can be highlighted the analysis and identification of internal and external variables/attributes considered as relevant for predicting the Bitcoin exchange rate in daily and intra-daily time frequencies. The increased use of machine learning techniques to predict time series and the acceptance of cryptocurrencies as financial instruments motivated the present study to seek more accurate predictions for the Bitcoin exchange rate. For this purpose, it was used different techniques of attribute selection to candidate variables. In relation of internal variables is proposed to use Blockchain information and generate technical indicators commonly used by traders. About external variables is proposed to use international economic indices and social trends extracted from Google and Wikipedia. As a second contribution, a methodology is proposed to predict the direction of the Bitcoin exchange rate against the dollar. In addition, it was explored the possibility of directly predict the maximum, minimum and closing prices, including these information to predict the trend. For this, Artificial Neural Networks, Recurrent Neural Networks, Support Vector Machines and Ensemble models (combining regression and clusterization) were used. As a third contribution for intra-daily time frequency, the data-stream learning methods are explored under the hypothesis that Bitcoin price presents a non-stationary behavior. Thus, it is observed that in long term, Bitcoin behaves more like a traditional instrument and, therefore, is increasingly affected by the international context and economic fundamentals. Likewise, the results showed that the selected attributes and the best machine learning model achieved an improvement of more than 10% in accuracy, for the price direction predictions with respect to the state-of-the-art papers, using the same period of information. In relation to the maximum, minimum and closing Bitcoin prices regressions, it was possible to obtain Mean Absolute Percentage Errors between 1% and 2%. Finally, in the prediction of intra-daily price movement, through the use of data-stream learning techniques, is obtained a result that improves more than 6% in accuracy to other previous studies.
Comparação entre o custo de capital aplicado pela ANEEL nas revisões tarifárias e o custo de capital das distribuidoras de energia elétrica para o período de 2015 a 2017
(Universidade Federal de São Carlos, 2018-09-20)
Bueno, Emilene Francisco
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Albuquerque, Andrei Aparecido de
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https://lattes.cnpq.br/9667573506903226
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https://lattes.cnpq.br/8556284258528916
The formation of electric energy tariffs in Brazil involves a series of procedures and regulations, and the regulatory agency (ANEEL) role is to establish and review the methods adopted. One of the methodologies involved in the calculation of tariffs is the remuneration of the capital invested by distribution concessionaires in the sector, obtained through the regulatory capital cost determination (WACC). This cost is calculated during the tariff review processes to which the distributors are subject periodically, and directly influences the index of it repositioning passed on to the consumer, as well as serving as economic parameter for the investments in the sector. Considering the existence of specific aspects of regulatory acts in the calculation used by ANEEL, this work has as a goal to verify if the cost of regulatory capital and the cost of capital of the electric energy distributors, calculated from six different models, are statistically similar or if there is a possible overvaluation or devaluation of the index set by the regulatory agency. Because of the disclosure by ANEEL of two regulatory WACC values, a so-called "before tax" and "after tax", comparisons are made from the two indexes in order to verify their peculiarities. It is used as sample 10 electric power distribution companies from public capital that had their definitive processes of fee revision concluded during the triennium 2015-2017. To verify the hypothesis of this study, we performed analyzes of absolute and relative deviations and non-parametric single-sample tests (Wilcoxon's test). The results indicated that both the "before tax" regulatory WACC and the so-called "after tax" WACC are higher than the average results obtained for the capital cost from 10 distributors, but the first index (which is actually used in the remuneration distributors' capital) shows a greater discrepancy. These two ways of calculation and dissemination of indices "before" and "after tax" by the regulatory agency itself already is a difficulty factor in the process of comparison between the cost of regulatory capital and the calculated using other models. Watching the main objective, this research finds that the regulatory rate of return is generally overestimated by the regulator, that is, the State has provided the investor with a profitability higher than the adequate cost of capital. This causes a greater attractiveness for the investments, but it charges the consumer more by repositioning the tariffs. Finally, considering that ANEEL estimates the WACC for up to 3 years, it can be observed that the method used does not following the oscillations of the Brazilian economic market. This makes both investor or consumer be harmed or benefited, depending on the year analyzed.