Browsing by Issue Date, starting with "2020-04-17"

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Os jogos sociomotrizes de cooperação e a construção de valores acerca da indisciplina discente
(Universidade Federal de São Carlos, 2020-04-17)
Pereira, Luiz Antonio
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Ramos, Glauco Nunes Souto
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https://lattes.cnpq.br/0134679842280022
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https://lattes.cnpq.br/3162075613143697
Indiscipline has emerged as a major educational problem and much has been discussed on this topic. Physical Education at school does not come out unscathed from this problem, facing everyday situations that are an obstacle to the smooth running of classes, impairing the learning of content and making it difficult to deepen the themes proposed by the teacher. We see in cooperative socio-motor activities - which offer experiences of participation in which the student has to seek, together with the others and solve situations in a collaborative way - the possibility that aspects related to solidarity, respect and empathy are present in the tasks development. Thus, the objectives of this research were to identify situations of indiscipline in an elementary school class and to analyze whether the experience and learning with cooperative socio-motor activities and activities aimed at building values could help students' perception and reflection about school indiscipline in Physical Education classes. The research was characterized by action research process and the instruments of data collection were: a) Class record books for the observation of situations of indiscipline during Physical Education classes and, b) Conversation circles, performed during in the beginning and in the end of classes. The teacher-researcher oversaw the students' experiences provided by didactic unit in order to understand whether they could link the proposed activities with the context of indiscipline in Physical Education classes. The work was carried out in a public school in the municipal teaching network of Matão / SP, with a class of 25 students from the 5th grade of elementary school. At the end of the research development, we reached the following analysis categories: 1) The indiscipline in Physical Education classes, which allowed us to identify the main problems of class indiscipline; 2) Construction of rules and attitudinal values: the pedagogical pact construction assemblies, during the intervention of the teacher-researcher; a proposal was made to confront indiscipline during the classes, promoting reflections and actions that were important in raising awareness of this issue; 3) Socio-motor cooperation activities displayed the importance of developing these games in Physical Education classes, as they have collaborative participation in their internal logic, which made it possible for the students to recognize the cooperative socio-motor activities and to identify their perceptions when performing them. We conclude that the cooperative socio-motor activities are important to confront indiscipline and - when accompanied by reflections on this problem - they can contribute to resolve / mitigate situations of this nature in Physical Education classes.
Efeito da taxa de aeração, da proporção mássica e da umidade da matriz inicial no processo de biossecagem de lodo anaeróbio
(Universidade Federal de São Carlos, 2020-04-17)
Almeida, Marina da Costa Ribeiro de
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Reis, Renan Felicio dos
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https://lattes.cnpq.br/1840510720475585
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Achon, Cali Laguna
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https://lattes.cnpq.br/0307406069325793
Biodrying is a novel technology that uses dewatered sewage sludge to generate energy. Microbial metabolic heat, which is produced during aerobic degradation of organic matter, and forced aeration turn the sludge into biofuel by removing moisture content. The treatment process is affected by the following characteristics: the number of microorganisms within the matrix, oxygen content, moisture content, and nutrient availability in the substrate, and the performance of the operational procedures. The initial biodrying matrix comprises sewage sludge and bulking agents (sawdust and feed), which operate in structuring, nutrition, and moisture content correction. The goal of this study was to analyze the biodrying treatment processes and operations as well as to evaluate the influence of aeration rate, mass ratio, and moisture content in the initial matrix. Bibliometric analysis and papers study drove the arrangements and analysis processes. Eight biodrying trials were carried out in the laboratory on different durations (16, 20, and 24 days). Trials 1, 2, 7, and 8 contained both sludge and bulking agents, while trials 3, 4, 5, and 6 had only bulking agents. The biodrying matrix was mixed manually in Trials 1 and 2 every four days and in the others trials according to the temperature decrease. Forced aeration was continuous (constant or variable) in all trials. The continuous and constant aeration rate for Trials 1 and 2 was 1 L.min-1.kgTS-1; for Trials 5, 7, and 8 was 2 L.min-1.kgTS-1; and for Trial 6 was 3 L.min-1.kgTS-1. The aeration rate (continuous and variable) for Trials 3 and 4 was 1 and 2 L.min-1.kgTS-1, respectively. Both aeration rates were raised to 3 L.min-1.kgTS-1 on day 20. On day 22, the rates were raised again to 4 L.min-1.kgTS-1. It was found that anaerobic sludge dewatered in a mechanical system has a low Lower Heating Value (LHV) on a wet basis (845 kJ.kg-1), thus requiring treatment processes such as biodrying to enable its energy use. Trials 7 and 8 achieved the most efficient results, reaching the thermophilic phase, reducing the moisture content from 62.33 and 61.48% to 46.73 and 29.36%, and reducing the mass by 48.47 and 60.09%, respectively. Trial 8 achieved the lowest moisture content and the highest LHV on a wet basis (10,083 kJ.kg-1), making it the most feasible condition for energy use. In conclusion, the initial matrix moisture content around 60%, aeration rate greater than or equal to 2.0 L.min-1.kgTS-1, and mass proportion of 6:1:5 (sludge:sawdust:feed) present better results involving temperature range and reduction of mass and moisture content, and therefore sewage sludge energy use.
Estudo da série LaNi1-xFexO3 e folhas de grafite pirolítico em reações de desprendimento de oxigênio
(Universidade Federal de São Carlos, 2020-04-17)
Gozzo, Cipriano Benedito
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Leite, Edson Roberto
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https://lattes.cnpq.br/1025598529469393
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https://lattes.cnpq.br/0186437696776091
Due to the critical need to change from fossil to renewable fuels, the perovskite oxide structures emerge as an important class of materials due to its activity in photovoltaic cells, photocatalysis, photoelectrochemical cells and electrocatalytic performance for oxygen evolution reactions (OER). Among several perovskites, LaNiO3 is promising for water oxidation reactions. However, this material presents some difficulties in stabilizing the Ni3+ site. A possible alternative to stabilize this oxidation state is the addition of other transition metals. The support electrodes on which the materials are deposited and used in RDO are extremely important in improving electrocatalytic activity. Pyrolytic graphite sheets can present themselves as an attractive alternative for a support electrode, having advantages as excellent electrical conductivity. Therefore, in this work, a study was carried out on the electrocatalytic properties of the LaNi1-xFexO3 series (x = 0.0, 0.3, 0.6 and 0.9) for RDO, analyzing the effects caused by the addition of Fe3+. These materials were deposited on PGS, as a potential substrate for electrocatalysis. Perovskites were synthesized by the coprecipitation method, followed by heat treatment. Depending on the amount of iron added, a phase transition from rhombohedral to orthorhombic, and morphological modifications were identified in these materials. It was observed that the LaNi0.4Fe0.6O3 electrode presented the most efficient condition for RDO. This electrocatalyst showed the lowest charge transfer resistance, low overpotential (439 mV at 10 mA cm-2) and a lower Tafel slope (52 mV dec-1) compared to the LaNiO3 phase (465 mV and 76 mV dec-1). PGS was also used for electrodeposition of NiFe-based catalysts, which presented a high electrocatalytic activity. The electrodeposited sample with 75% Ni and 25% Fe provided an overpotential of 320 mV, while in the same sample deposited on glassy carbon, the overpotential was 350 mV. In conclusion, it was possible to determine that both the LaNi1-xFexO3 series (x = 0.0, 0.3, 0.6 and 0.9) and NiFe layered double hydroxides, both deposited on PGS, are potential materials to be applied in OER.
Métodos para estimativa de imagens NIR a partir de imagens de câmeras RGB
(Universidade Federal de São Carlos, 2020-04-17)
Lima, Daniel Caio de
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Saito, José Hiroki
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https://lattes.cnpq.br/7065615446493390
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https://lattes.cnpq.br/2950948945228069
Precision Agriculture involves the use of technology for management and decision making to allow rural producers to get better production results. To gain the desired effect, it is necessary a huge data collection and processing of the cultivated areas, being Remote Sensing, using special sensors attached to drones, a powerful alternative for this task. Vegetation Indices obtained with arithmetic equations, are used to highlight vegetation cover density variations using near infrared (NIR) images and visible spectrum images, being useful to assess biomass and productivity estimation from a crop, for example. The main problem is the elevated costs of drones and principally of sensors that acquire NIR images, making the use of this technology, by small producers, unattractive or difficult. The objective of this work is to propose a method to estimate NIR images using ordinary photographic camera RGB images that could eliminate the use of specific sensors and the need to make alterations in commom cameras, thus making this technology cost lower. To achieve this goal, we propose the use of a Deep Learning architecture (Pix2Pix) and a spectral signature based, KNN classification and a weighted sum by proximity degree of k nearest reference signatures method, producing a new spectral signature. These methods are described and evaluated in this document. Results showed that the two methods investigated can be used to estimate NIR images, showing high similarity to real NIR images.
Decomposição da variância para o modelo de regressão destrutivo Waring de longa duração
(Universidade Federal de São Carlos, 2020-04-17)
Vasquez, Jonathan Kevin Jordan
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Rodrigues, Josemar
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https://lattes.cnpq.br/4359114733394761
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https://lattes.cnpq.br/9565445098851076
The goal of this work is to formulate a two-stage regression long-term model, whose destructive mechanism of the competitive risk factors is flexible for measuring the impact on the survival function or cure rate of three variance components induced by: randomness effects, external effects or external frailties (unknown covariates) and destruction or internal frailty (destructive mechanism). The number of the risk factors which were not eliminated is unobservable random variable, called discrete frailty, and the choice of the frailty distribution must be appropriate to detect the sources of variability responsible for the variation between patients. The discrete frailty random variable of the first-stage of the model is based on the Waring distribution, which splits the variance into these three components, and was applied with success in the accident theory, epidemiology and biology. A simulation study and an application to a HIV and melanoma data, via likelihood approach, illustrate the utility of the Waring distribution to detect internal frailty, external frailty and model's uncertainty (randomness effect), which are not observable and responsible for the heterogeneity across patients. The cure rate is personalized and the patient is a protagonist for the treatment, and that could be useful to decide on preventive immunotherapy treatment for patients to fight cancer.
Processos educativos emergentes de uma unidade didática com o Fútbol Callejero nas aulas de Educação Física
(Universidade Federal de São Carlos, 2020-04-18)
Grifoni, Tiago
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Souza Júnior, Osmar Moreira de
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https://lattes.cnpq.br/9176123942671062
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https://lattes.cnpq.br/9039636076571912
Considering the emergence of Fútbol Callejero as a pratice of popular education, mainly in Latin American countries, the current study based on assumptions of an action research aims to analyze the educational processes related to attitudinal knowledge resulting from the application of a didactic unit with Fútbol Callejero in Physical Education classes in a 9th grade class from elementary school. The Callejera Methodology proposes the game in three playing times with teams, necessarily mixed, and there is a mediator to replace the referee. In the first half, the participants combine the rules of the game in accordance with the agreements established which are noted by the mediator. In the second, they dispute the match marked by these agreements under the watchful eye of the mediator. The third, also called mediation, the mediator conducts dialogue and reflections on the situations of the game and punctuates not only the goals, but the fulfillment of the three pillars (respect, solidarity and cooperation) suggested by the Methodology. From a methodological point of view, we carried out an action research and the instrument used for data collection was the class diary. The didactic unit was composed of 16 classes, distributed in eight double lessons held on Fridays during the months of March, April and May in which the following themes were developed: gender relations in sports, Fútbol Callejero, and its three pillars: youth protagonism, mediation in Fútbol Callejero ,and organization of a festival among the students using the Callejera Methodology. The methodological way defined to guide the research was the Systematization of Experiences. We recorded the conversation groups on films and eight class diaries were written, transcribing the experience accurately. Our data analysis inspired by the coding categories lead to three categories: A- “Girls can play at an equal level through Fútbol Callejero”; B- "They choose only the good players, only the best"; C- “ Nowadays, with the practice of Fútbol Callejero, they are more united without divisions and everyone has become friends”. Based on our analysis, we identified the practice of Fútbol Callejero as spaces of humanized relationships guided by dialogue promoting the practice of solidarity, empathy, cooperation, and respect, which makes a pedagogically successful strategy with attitudinal knowledge through sport in Physical Education classes.
Ensaios de uma metodologia da experiência crítico-afetiva nas aulas de educação física: impactos sobre as relações de gênero e o empoderamento das meninas
(Universidade Federal de São Carlos, 2020-04-18)
Pereira, Ana Cristina Gabriel
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Souza Júnior, Osmar Moreira de
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https://lattes.cnpq.br/9176123942671062
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https://lattes.cnpq.br/7252973634455105
The proposal of the present study originated from the possibilities of developing sensibility and consideration, amongst the students of a municipal public school, about gender inequalities, as well as the empowerment of girls in sports practices. Starting with this premise, we formulated an educational proposal guided by an intervention model that we denominated Critical-Affective Experience Methodology (“CAEM”). The goal of the study was to analyze the co-educational processes emerging from an intervention applying the CAEM in Physical Education classes provided to 6th grade (elementary school) students. This active research was guided by the implementation of an educational unit composed by seventeen classes based on the co-education and knowledge of the internal and external logics of Invasion Sport Games (“ISG”). The instruments for data production included Class Journals, Individual Narratives and small conversation groups, and the observation and analysis of the video recording of the ISG, which were obtained through footage and audio recording. Based on the data collected, their results and analysis are presented concurrently and in a fluid manner through two general categories. In the first category, “Gender relations in the co-educational context of the Invasion Sport Games”, issues surrounding the male domination in ISG and in the society and the production of gender differences and inequalities were highlighted. In the second category, “Impacts of the Critical-Affective Experience Methodology”, the subcategories that emerged denote processes for the girls’ empowerment through oral expression, processes for tactical and technical empowerment, and co-educational processes for overcoming sexism. We believe that the Critical-Affective Experience Methodology enabled the emergence of co-educational processes, such as the awareness about the power hierarchy in the gender relations, a confrontational posture from the girls before the social injustices, more balanced and democratic access to ISG amongst boys and girls, effective participation of the female students in the ISG, and the improvement in the interaction amongst boys and girls in (and beyond) the Physical Education classes.
Papel do professor de Educação Física no desenvolvimento motor de escolares da educação infantil
(Universidade Federal de São Carlos, 2020-04-18)
Suzini, Estevan Rocha
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Godoi Jacomassi, Daniela
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https://lattes.cnpq.br/7699007812483790
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https://lattes.cnpq.br/2195094752615569
Physical Education (PE) is a compulsory curriculum component in the Brazilian basic education that includes kindergarten/preschool, primary school and high school. In the educational networks, the organization and understanding of whom can teach PE classes in the early years (kindergarten education and primary school) is divergent: some choose and rely on a specialist teacher (PE teacher), and some others choose and rely on a regular teacher (in general, graduated in Pedagogy). Considering the importance of PE in the early years and that these classes can be taught by a specialist teacher or by a regular teacher, does the presence or absence of a specialist teacher influence the motor development of students? Thus, this study aimed to investigate the motor development of children from kindergarten education who take PE classes with a PE teacher and students who take PE classes with a regular teacher. Twenty-nine students from kindergarten education took part in this study and they were divided in two groups: students from a school in which PE classes are taught by a PE teacher (GEsp) and students from a school in which PE classes are taught by a regular teacher (GRef). In order to assess children’s motor development, motor skills and postural control were evaluated at the beginning of the school year and at the end of the school year. Motor skills were evaluated using the TGMD-2, which is composed of 12 motor skills: 6 locomotor skills and 6 object control skills. Postural control was evaluated during upright stance maintenance on a force platform under different vision (opened or closed eyes), and base of support (bipodal and semi tandem stance) conditions, through two variables: variability and velocity of the center of pressure (CP). Results revealed differences in children’s motor development in each group. Regarding motor skills, only GEsp increased TGMD-2 total score from pre- to post-test. When considering the performance obtained separately in each sub-test, results revealed that, from pre- to post-test, both groups improved locomotor skills score, but only GEsp improved object control skills score. Regarding postural control, it was observed that under the condition of closed eyes and semitandem stance, for GRef, variability of CP values in AP direction decreased from pre to post-test; while for GEsp variability of CP values in AP and ML directions increased from pre- to post-test. Based upon these results, it is possible to conclude that there are differences in motor development of children from kindergarten education who take PE classes with a PE teacher and students who take PE classes with a regular teacher. This suggests that a new understanding of whom should teach PE classes must be established, indicating the requirement for licensed teachers in PE to teach PE classes.
Educação Física Escolar e a contribuição da metodologia Callejera nos conhecimentos atitudinais
(Universidade Federal de São Carlos, 2020-04-18)
Moraes, Fabio de
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Souza Junior, Osmar Moreira
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https://lattes.cnpq.br/9176123942671062
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Couto, Yara Aparecida
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https://lattes.cnpq.br/2348643816717796
This work is a result of a culmination of an Action Research applied on a Public School in the city of São Carlos, São Paulo, with fifth grade Elementary School children at the School of Physical Education. The classes were planned for the development of the Invasion Sports Content, Therefore, I have prepared a Didactic Unit about this theme. Nineteen interventions were completed which led to the construction of 16 camp diaries. The study acknowledges the contribution of Callejera Methodology at the educative process that can occur in the attitudinal camp. The Callejera Methodology comes from Fútbol Callejero – a popular Education practice originated in Argentina. This methodology is composed of a game developed in three Times. In the 1st time the rules of the game are defined and all the participants can include, change or abolish the rules. In the 2nd time, the actual game takes place. In the 3rd time also called Mediation the winning team is defined by the points count. The score of the game in the 2nd Time is not the final determining factor of the winning team because the teams need to demonstrate the accomplishment of the Pillars: Respect, Togetherness and Solidarity. These are attributed values that will be calculated to reveal the final score. In this game the teams are mixed, so, that each team is composed of boys and girls. This is compulsory and there is no arbitration by a judge. In this way the adherence to the rules, the follow up to the game and the facilitation of the final dialogue leading to the validation of the points is done by a Mediator. The data of the research were collected through class observation and were transcribed in diaries composing the camp note. To the elaboration of the camp notes, were used audios of the intervention recorded on a smartphone. This served to elicit memories about the sequence of events that occurred. The return and analysis of the camp diaries elicited questions about competition and gender that has been repeated in several instances. Those parts were collected composing two categories which were named according to the comments of the students. For example: “But he is great!” showing questions related to competition and “The girls keep doing their nails!” with questions related to gender. Therefore, throughout the application of Callejera Methodology, we witnessed that emerged educative process and were gain new knowledge, especially the Solidarity due to the sharing of the players to the balance of the teams and the break of the female stereotypies about using makeup and sport practices. This were developed the work with the social and emotional skills recommended by the Base Nacional Comum Curricular (BNCC).
Dinâmica topológica do operador deslocamento com pesos
(Universidade Federal de São Carlos, 2020-04-20)
Soares, Neilson Castro
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Pires, Benito Frazão
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https://lattes.cnpq.br/4794158264736569
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https://lattes.cnpq.br/1758280172156195
In the present work, we will do a study of linear dynamics of operators, focusing mainly on the concepts of topological transitivity, hypercyclicity and chaoticity. At rst, we will deal with non-linear dynamical systems and, later, we will approach the dynamics of operators in a linear context, more speci cally, in Banach spaces. We will also present examples of linear operators, which are correlated, they are: the backward shift operator, Rolewicz and weighted shift operator. Finally, we will show results that provide us under what conditions these operators have dynamic properties in the lp(X) sequence space, where 1 ≤ p < 1 and X is a Banach space.
Dinâmica do uso e ocupação da terra associada ao crescimento de processos erosivos lineares e aos aspectos sóciodemograficos e físico-estruturais
(Universidade Federal de São Carlos, 2020-04-22)
Souza, Natália da Costa
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Lollo, José Augusto de
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https://lattes.cnpq.br/8987677644041247
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https://lattes.cnpq.br/0790728556210785
Interdisciplinary researches has emerged in order to understand the multiple causes and consequences resulting from changes in the forms of appropriation of surface. For this reason, it is common to develop analytical approaches that consider spatial, temporal and socio-environmental vulnerability variables as a support for territorial planning. It is possible to prepare previsions of scenarios and prognosis for areas that will present social vulnerability and environmental degradation, providing subsidies for spatial planning and the sustained development of human activities. In this context, the analysis of the association between land use and land cover changes, socio-demographic and physical-structural aspects and the growth of gully erosive processes in Santa Rita do Passa Quatro –SP (Rio Claro, Córrego da Capituva and Bebedouro watershed), between the years 1990 – 2017 is justified. This period is marked by the occupation of urban areas in the region and the consequent intensification of changes in the form of occupation. This study is a possible method of subsidizing actions for planning and monitoring land use and coverage. The main contribution of the research is to assess which social, demographic, physical-structural and environmental dimensions are associated with the dynamics of transforming surface and how they can assist in the modeling of future scenarios for occupying it. The methodological process takes place in 9 procedures, which are: definition of the analysis time series, mapping of the gully erosion processes identified in the study region, analysis of the processes autocorrelation, collection of land use and coverage data, analysis of temporal changes, selection of indicators and explanatory variables and the final proposal for modeling spatial dynamics using the MOLUSCE - QGIS 2.18.0 plugin. As a result, the present research discusses the main classes that suffered oscillations between the years analyzed, the cases of erosion registered during the series and in the transitions that occurred, in addition to exploring how they influence some elements when inserted in the modeling future land use scenarios.
Utilização das aeronaves remotamente pilotadas como ferramenta de análise da pós-ocupação de uso do solo: o estudo de caso do Shopping Passeio, São Carlos (SP) e seu estudo de impacto de vizinhança
(Universidade Federal de São Carlos, 2020-04-22)
Inguaggiato, Felipe Facci
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Stanganini, Fabio Noel
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https://lattes.cnpq.br/6774358264004600
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Melanda, Edson Augusto
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https://lattes.cnpq.br/1554762456965991
Issues related to urban organization and management in Brazil have always been discussed, and major attempts to systematize territorial organization have been carried out over the past few decades. However, only in 2001, the Ministry of Cities obligatorily granted the elaboration of Master Plans (PD), with Law 10.257 / 2001, to municipalities above twenty thousand inhabitants. Among these DPs, there is a tool of great relevance for the sustainable management of cities: the Neighborhood Impact Study, a study on the impact that the enterprises undertaken in the region, is an important importance for a discussion about these relationships and these factors in both in the present and in the future. However, the cartographic material used in recording reports is often insufficient for carrying out concrete and specific analyzes on the impacts of the undertakings, if making the necessary use of new tools to use these images. In this sense, as Remotely Piloted Aircraft are an alternative to aerophotogrammetric survey, due to their low financial cost and operational ease, in addition to the high precision of the images. In this context, the main objective of this dissertation is the presentation of new aerophotogrammetric survey tools and their products generated for an observation of the impacts of the Shopping Passeio project, located in the municipality of São Carlos (SP), with analysis of its Study Report of Visualization Impact, elaboration of cartographic materials related to land use and post-occupation of the region in 2019. For that, land use maps in addition to elaborated geoprocessing software, with the possibility of analyzing the land use and occupation of the region, analyzing the EIV of the enterprise and the current occupation of the area. It is possible to conclude that, although not very comprehensive, report 10.522 / 2013, referring to Shopping Passeio's EIV is in accordance with the procedure adopted in municipal laws, such as land uses within the area of direct influence of the enterprise, which follows the Law of Urban Zoning of São Carlos. However, the cartographic material presented in the report is inconsistent, as well as the difficulty in gaining access to its own, going against the extensions of Law 10.257 / 2001. Thus, the dissertation aims to present new tools to assist the management of urban planning, with emphasis on importance and spatial organization.
Investigação experimental da influência de parâmetros de usinagem sobre a resistência mecânica de um aço ferramenta endurecido
(Universidade Federal de São Carlos, 2020-04-22)
Gandia, Guilherme Caselato
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Antonialli, Armando Ítalo Sette
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https://lattes.cnpq.br/4367459395417045
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https://lattes.cnpq.br/2898560067500659
The manufacturing process, the machinability of a material, its mechanical properties and application purposes are recurrent subject of analysis. However, not always the machining parameters influences are taken into account, might effect the product efficiency and life-cycle. In this context, study opportunities emerge to the Surface Engineering, going deeper on the manufacturing process effects over the surface integrity. This present work delves into the influence of the turning parameters on the mechanical properties of the hardened O1 tool-steel. The investigation was based on: manufacture specimens from annealed tool-steel bars, heat-treat it and do the finishing with different settings of turning parameters, varying the feed rate and cutting speed in a complete 2^2 factorial design, measure the surface roughness and perform tensile tests. It was found that the Ra and Rz parameters showed the decrease tendency with the increase of the cutting speed (35% in average for the lowest feed rate and 5,4% for the highest) and aggravate (in average, 18,8% for the lowest cut speed and 72% fot the highest) with the feed rate increasing, although this was only statisticaly attested for the influence of the feed rate and cutting speed over the Rz. Moreover, the ultimate tensile strenght and the elongation percentage exhibit the same tendency of amplify with the increase of cutting speed (in average, 18% for the lowest feed rate and 10% for the highest) and decrease with the feed rate increasing (18,5% in average for the lowest cut speed and 10% for the highest), nonetheless this was statisticaly evidenced only for the feed rate affect over the ultimate tensile strenght. Furthermore, it was possible to establish a correlation between the Rz roughness parameter and the ultimate tensile strenght through a logarithmic regression (R2=0,7074), indicating that lower roughness values would lead to higher mechanical strenght values.
O uso de imagens de arquivo em documentários de moradias estudantis: a escrita da história do CRUSP e da moradia estudantil da UNICAMP
(Universidade Federal de São Carlos, 2020-04-23)
Oliveira, Eduardo de Souza de
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Gamo, Alessandro Constantino
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https://lattes.cnpq.br/8208629144314123
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https://lattes.cnpq.br/7656796363054621
The present work analyzes the appropriation of archive images by the documentaries CRUSP: um recorte (Marcelo Gutierres, 2005) and Moras à Luta (Samuel Souza and Eduardo Oliveira, 2015). The objective is to point out how the montage of heterogeneous materials, testimonies and moving images from public archives, internet videos or other films, generates private writings of the stories of the Residential Complex of the University of São Paulo (CRUSP / USP) and the Student Housing at the State University of Campinas (UNICAMP). The stories of these spaces are marked by intense student struggles and experiences, which expressed by testimony or displayed by archival image, correspond to different purposes: as a means of comparison between times and generations, in the case of CRUSP, and as collection of a historical debt, in the case of Housing.
Produção de bioprodutos a partir do cultivo batelada e batelada alimentada de Phormidium autumnale em vinhaça de cana-de-açúcar
(Universidade Federal de São Carlos, 2020-04-23)
Visentin, Taisne Gonçalves
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Bastos, Reinaldo Gaspar
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https://lattes.cnpq.br/9329363278429665
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https://lattes.cnpq.br/1505631768215121
Processes using microalgae and cyanobacteria in the treatment of wastewaters have been attractive due to the obtaining of biomass with the commercial value associated and the efficient removal of some contaminants. The cultivation of these microorganisms with biomass generation and obtaining bioproducts such as proteins, lipids, carbohydrates and pigments is known by the term "microalgal biorefinery." In this context, this research aimed the heterotrophic cultivation of filamentous cyanobacteria Phormidium autumnale in sugarcane vinasse, evaluating the removal of contaminants with an emphasis on obtaining value added bioproducts. In the first stage, the highest productivity in biomass was obtained from a central composite rotational design (CCRD) in an orbital shaker, being 127.20 mg/L/h and 107.91 mg/L/h at 31ºC and 35ºC, respectively, in initial C/N ratios of 16 and 23 and initial pH of 8.4 and 7.5. In these conditions at 35ºC, removals of organic carbon, nitrogen, and phosphorus were 49%, 47%, and 28%, respectively. In the cultivation in a batch bioreactor were obtained the removals of organic carbon (67%) and nitrogen (70%), with maximum productivity in terms of biomass equivalent to the best condition of the tests carried out in an orbital shaker (CCRD). The biomass of P. autumnale generated in a batch bioreactor showed 21.33% of proteins, 4.26% of lipids, with important fatty acids for the production of biodiesel, 197.53 mg phycocyanin/g biomass of phycocyanin, varied composition of carbohydrates (glucose 79.46 mg/L, arabinose 44.53 mg/L, mannose 9.84 mg/L, galactose 4.78 mg/L, and xylose 14.44 mg/L) and 0.97 g/L of total reducing sugars. Cultivation in a fed-batch bioreactor generated 43.51% of proteins, 12.6% of lipids with fatty acid composition for biodiesel synthesis, carbohydrates such as glucose (48.06 mg/L), arabinose (53.33 mg/L), mannose (26.95 mg/L) and galactose (2.76 mg/L), as well as 0.81 g/L of total reducing sugars and 99.5 mg phycocyanin/g biomass of phycocyanin. The results indicated the technical feasibility of growing this cyanobacterium in sugarcane vinasse in batch and fed-batch cultivations, with carbon and nitrogen removals. Also, its composition in terms of proteins, carbohydrates, and lipids indicates possible applications for the biomass generated, indicating the possibility of this microalgae being integrated into a biorefinery system with the sugar-energy industry.
Avaliação de leitura em espanhol língua estrangeira: das concepções dos professores à prática
(Universidade Federal de São Carlos, 2020-04-23)
Silva, Alessandra Gomes da
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Yokota, Rosa
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https://lattes.cnpq.br/9230517686993400
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https://lattes.cnpq.br/7686102859227171
Learning assessment, althougth studied in academia, is still a controversial element in the educational field. While it is rejected by students and teachers, it is valued within the education system (SCARAMUCCI, 1999). Inherent in teaching and learning processes, assessment assumes different functions within the school sphere (ÁLVAREZ MÉNDEZ, 2002), among which the apprenticeship diagnosis stage that guides decision-making stands out (SCARAMUCCI, 1999). However, it is known that assessment is never neutral, as it will always carry, albeit implicitly, theoretical views and assumptions of the teacher and / or the educational institution. Foreign language teaching (especially the development of reading competence) gains relevance for the exercise of citizenship, since it expands the possibilities of interpreting the world of learners (JORDÃO, 2004). It is up to the school, therefore, as one of the main agents of teaching, to foster the development of reading competence in a foreign language in which learning assessment is an essential tool. Considering that evaluation carries different views and theoretical assumptions and that it is essential to be understood what language and reading means in foreign language reading assessment, this research aims to verify the way nine teachers of Spanish as a foreign language (SFL) conceive reading assessment and how these evaluations take place in practice. In view of the qualitative nature of this research, four instruments were used for data collection: questionnaire (with open, closed and related questions), semi-structured interview, document analysis (from the reading assessments provided by the participants) in addition to the researcher’s field notes. Through these instruments, it was possible to infer the participants’ locus as evaluators and the praxis of their evaluation. Data interpretation shows the strong washback of external exams on learning assessment.
Aplicações singulares via grupos de reflexões
(Universidade Federal de São Carlos, 2020-04-24)
Zampiva, José Rafael Borges
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Sanchis, Guillermo Penãfort
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https://lattes.cnpq.br/2614790149163179
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Tomazella, João Nivaldo
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https://lattes.cnpq.br/0051564735964760
Our objective with this essay is to describe a way to build germs of applications A-finite f:(\C^{n},0) \rightarrow (\C^{p},0) for p=2n and p=2n-1. In the case p<2n-1, we conclude that there is no germ of reflection application A-finite f:(\C^{n},0) \rightarrow (\C^{p},0) with corank f greater or equal 2.
Desenvolvimento de imunoensaio eletroquímico para detecção de anticorpos anti-Zika vírus visando o diagnóstico da doença
(Universidade Federal de São Carlos, 2020-04-24)
Castro, Karla Patrícia Ribeiro
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Gibin, Grazielle de Oliveira Setti
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https://lattes.cnpq.br/8018437774723623
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Faria, Ronaldo Censi
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https://lattes.cnpq.br/8659496864305621
Zika Virus (ZIKV) is a flavivirus transmitted by Aedes species. The disease may be asymptomatic or present clinical such as: conjunctivitis, fever, headache, and in severe cases development of fetal microcephaly and Guillain-Barré syndrome. The rapid spread of the virus and the difficulties of diagnosis require development of alternative methods for diagnosis with high specificity and sensibility. In this scenario, we proposed an electrochemical method for detection of Ab1ZIKV antibodies using magnetic beads modified with a recombinant non-structural protein (ΔNS1ZIKV) and anti-IgG antibodies labeled with horseradish peroxidase enzyme (HRP). The analytical method proposed involved the fabrication of microfluidic device and an immunoassay based in a sandwich type strategy. The device was built using low-cost materials, and the system’s layout comprised of an arrangement of 8-working electrodes, a pseudo-reference electrode, and a counter electrode. The electrochemical detection was performed based in the HRP electrocatalytic cycle by injecting a solution containing hydroquinone (redox mediator) and H2O2 as substrate. Cathodic peak current of HQ reduction was obtained as analytical signal and its intensity was proportional to the logarithm concentration of Ab1ZIKV. The immunoassay showed a linear response in the range of 0.01 to 9.8X10^5 pg mL-1 presented an equation of "Ip(µA) = 0.04 + 0.01 CAb1ZIKV" obtained by linear regression with a correlation coefficient of 0.981. The limit of detection and quantification obtained were of 0.48 pg mL-1 and 1.45 pg mL-1, respectively. The proposed immunoassay proved to be efficient for the detection of anti-ZIKV antibodies, presenting a low limit of detection, ensuring be a promise tool for diagnosis of the disease.
A educação física e as dimensões do conhecimento na BNCC: um estudo a partir dos planos do ensino dos professores de uma rede municipal de ensino
(Universidade Federal de São Carlos, 2020-04-24)
Vidotti, Pedro Henrique Carbone
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Ramos, Glauco Nunes Souto
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https://lattes.cnpq.br/0134679842280022
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https://lattes.cnpq.br/3829917896340920
The National Common Curricular Base (BNCC) approved in 2017 aims to promote changes in the curricula of the education system and schools in the country, stimulating the development of essential learning. Besides that, in the Physical Education discipline, one of the novelties is the inclusion of the eight dimensions of knowledge: Experimentation, Use and Appropriation, Fruition, Reflection on Action, Construction of Values, Analysis, Understanding, and Community Protagonism. Therefore, the purposes of this research are: a) to build an understanding of the Dimensions of Knowledge; b) to identify how they are already approached by teachers and c) to analyze and propose, together with teachers, what are the pedagogical possibilities of this concept. The research has a qualitative approach with interpretive description characteristics, employing documentary research and rounds of conversation as the data collection technique. The National Common Curricular Base and 17 didactic sequences from 8th and 9th grades designed by Physical Education teachers from a municipal education system were analysed. The round of conversations was composed of 32 teachers and the coordinator of the discipline of the education system. The information collected was classified into two categories, namely: Dimensions of Knowledge, at which each group of knowledge was prominently discussed, and Echoes, that sought to identify and interpret the participants' positions regarding the implementation of the base and the Dimensions of Knowledge. In the 17 didactic sequences analysed, were found 97 learning expectations that indicate the Construction of Values, Analysis and Understanding, and the moderation concerning Use and Appropriation, Fruition and Community Protagonism. At the National Common Curricular Base, in the 21 skills described for the 8th and 9th grades, there was a more eminent balance between the dimensions and the thematic units. We considered that the Dimensions of Knowledge are concrete possibilities to know, practice, appreciate, democratize access, develop values and understand the operation and the social aspects of bodily practices; therefore, are didactic tools for the discipline teachers to build their pedagogical proposals.
Meta-terror: o uso da metalinguagem como recurso narrativo no slasher movie
(Universidade Federal de São Carlos, 2020-04-24)
Marchi, Marcelo Eduardo
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Gamo, Alessandro Constantino
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https://lattes.cnpq.br/8208629144314123
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https://lattes.cnpq.br/5205042029981999
Slasher movies - horror films characterized by the well-known premise of the serial killer that terrifies a group of young people, such as The Texas chainsaw massacre, Halloween, Friday the 13th and A nightmare on Elm Street - were a tremendous success with audiences during the first half of the 1980s. However, after that peak, the subgenre went into clear decay, since the exhaustive repetition of its formula ended up saturating viewers. Interestingly, in the mid1990s, it was the self-reflexive use of that same formula that ended up revitalizing it: premiered in 1996, Scream achieved a huge box office, became a landmark in popular culture and gave rise to an unexpected trend of slasher movies investing on metacinema. With daring and creative films like Behind the mask: the rise of Leslie Vernon and The cabin in the woods, the post-Scream era of horror movies has left us a rich field of study regarding the use of metacinema as a narrative resource and the ability to reinvent a subgenre through its own limitations. Thus, this research seeks to carry out a historiographical synthesis of the slasher movie based on the works of authors such as Carol J. Clover, Adam Rockoff, Richard Nowell, Jim Harper, and John Kenneth Muir, with the main focus on the elements of metacinema that have been found since the beginnings of the subgenre, but which gained strength especially with the release of Scream. Based on this and in a deep film analysis of selected works, it will be possible to understand the particular way in which each film used these elements, as well as the role of metacinema in reviving the slasher and in the process of making its formula increasingly dynamic.