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Televisão e formação na era digital: um exame crítico das pretensões formativas do programa Salto para o futuro
(Universidade Federal de São Carlos, 2015-02-11)
Bet, David Silva
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Zuin, Antônio Álvaro Soares
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https://lattes.cnpq.br/5543562307373287
;
https://lattes.cnpq.br/2205364981301004
The sea of real-time images, the instant access to latest news and the contemporary demand that praises and requires the so-called positive social values pass by the exhausting and brutalized affirmation process of this established culture. Television, in this regard, can become a powerful vehicle of ideology exchange, due to its global reach. However, television could be an education tool, provided that its content and form are properly prepared to this end. Following these discussions, and guided by readings of texts by Theodor W. Adorno and Herbert Marcuse, we propose the analysis of the content of educational television program, transmitted by television and Internet, Salto para o Futuro (Leap into the Future, in Portuguese), on TV Escola (Ministry of Education), as well as the observation of technical changes, in other words, the way the information are structured and transmitted by this mean of communication, born as a result of the digital technology emergence. Analysis has demonstrated that there is Form predominance over Content since the analyzed episode articulates its messages via TV newscast format, which beforehand tends to ensure spectators adhesion by its serious aspect. Another important aspect comes from the presence of a discursive pattern in the messages: the hero specialist teacher cliché who in the future, by magically jumping over the historical and material contradictions in the present days, will save education by using technology. Finally, we conclude that the general format of the Salto Para o Futuro TV show (Leap into the Future, in Portuguese) does not allow the offer for explanatory information. However, through the radical change of its dynamics - disruption of the formal hierarchy by dialectic relation tension of the Formation concept - the program could envision an educational horizon: an aid to reveal the mechanisms that prevent the refusal and resistance of what is presented as if it were real.
Propriedades ópticas da alumina anódica porosa e o efeito do guia de onda
(Universidade Federal de São Carlos, 2015-02-11)
Carossi, Lory Cantelli
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Trivinho-Strixino, Francisco
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https://lattes.cnpq.br/9740223649776400
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https://lattes.cnpq.br/8708083193756979
Nanoporous anodic alumina films (NAA) may present different behavior to reflectance and photoluminescence techniques, with Fabry-Pérot interferences and waveguide properties. This phenomenon makes possible the use of NAA as transducer signal in optical sensors. In this work, we investigated how the pre-treatment, the number of steps of anodizing, the anodizing electrolyte mode and temperature affect electrochemical characteristics, morphological and optical mainly NAA. As a result, it was noticeable that the realization of electropolishing is necessary for both the NAA with good regularity as to make it possible to obtain a spectrum with the Fabry-Pérot interference. If the fabrication of NAA is done in two steps, it is possible to obtain reflectance spectra and luminescence fringed with better amplitudes, areas and heights. Regarding the anodizing mode, both the NAA anodized in galvanostatic how potentiostatic showed similar morphologies and spectra with fringes, but the interferences were better defined when the galvanostatic mode was performed. Regarding the temperature, it was noticeable that the change of this parameter leads influences the porous oxide thickness. The spectrum of the luminescence and reflectance increasing the electrolyte temperature caused an increase in interference. However, the range and resolution of interference decreased with increasing temperature. The oxide thicknesses were estimated by energy variation (?E), graph slope between order and 1/? and fast Fourier transform (FFT) techniques. The ratio of film thickness and pore diameter (L/dp) was performed to validate the NAA films with better waveguides property. Moreover, the surface composition analysis of NAA films anodized in phosphoric acid, oxalic acid and mixtures thereof by backscattering spectroscopy Rutherford (RBS) was performed. From simulations it was possible to note that the amount of carbon in the porous oxide structure is practically zero, which may indicate that the origin of the luminescence is related to the presence of more centers F.
Investigação empírica sobre o relacionamento entre Seis Sigma e prioridades competitivas
(Universidade Federal de São Carlos, 2015-02-11)
Silva, Brena Bezerra
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Mergulhão, Ricardo Coser
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https://lattes.cnpq.br/0598720328915137
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https://lattes.cnpq.br/6895269832274542
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Caten, Carla Schwengber Ten
Six Sigma is an improvement program adopted by many companies to improve their business performance. However, some studies indicate that the relationship between Six Sigma and competitive advantage is not that clear. In this context, the main objective of this dissertation is to identify the relationship between the implementation factors of Six Sigma and competitive priorities in companies that operating in Brazil. As steps, this research conducted bibliometric analysis, content analysis, descriptive analysis and factor analysis. The research investigated 45 companies, through a survey, to find the relationship between Six Sigma implementation factors with competitive priorities in Brazil. Implantation factors identified were: "collect and availability of data", "previous infrastructure", "performance indicators", "goal setting", "capacity for change", "top management involvement" and "statistical thinking" . The results indicate the implementation factors that have relationship with competitive priorities are "collection and availability of data," "previous infrastructure" and "capacity for change". In addition to this result, it was found that the dimensions of competitive priorities that have relationship with implementation factors are "reliability" and "flexibility".
Efeitos da hibridização e do campo magnético externo na supercondutividade de modelos multibandas
(Universidade Federal de São Carlos, 2015-02-11)
Silva, Márcio Gomes da
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Padilha, Igor Tavares
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https://lattes.cnpq.br/4605895860650284
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Sousa, José Ricardo de
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https://lattes.cnpq.br/3871066069541626
Superconductivity one of the most intriguing physical phenomena has been extensively studied due to their potential for technological applications. Despite advances in research in physics there is still no complete theory to explain the phenomenon. We study the behavior of a superconducting system described by a multiband model. We consider the interband interaction, i.e., the interaction is between the fermions with dierent masses at dierent bands, under the inuence hybridization. Also, we study the intraband interaction with hybridization and external magnetic eld. Using the method of Green's functions of Zubarev, we calculate the superconducting order parameters with intra-and interbanda interaction at zero temperature, ie, T = 0, and for dierent temperatures of zero. Interband interaction obtained in the superconducting order parameter as a function of temperature and hybridization V. The phase diagram T versus V was also obtained. The superconducting properties, such as free energy, entropy and specic heat, were also determined in the intraband interaction. Initially, we calculate the superconducting properties in zero eld, ie, for H = 0, then we consider the presence of external magnetic eld H nonzero. obtained an implicit equation that relates the magnetic field, temperature and hybridization, which allowed us to obtain the phase diagram T versus T and T versus V . Our results show that both the hybridization V , as the external magnetic field H acts at the expense of superconductivity by suppressing it. We noticed also, and conrmed by other studies, that the intraband interaction, we have only second order transition, since the interaction interbanda, we obtained a superconducting tricritico point where we encounter a line first with a second order. Based on these results, we conclude that left a signicant contribution to research in superconductivity.
Diretrizes para práticas de qualidade nas diferentes etapas do processo de produção de lajes alveolares de concreto protendido
(Universidade Federal de São Carlos, 2015-02-11)
Direitinho, Romão Manuel Leitão Carrapato
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Ferreira, Marcelo de Araújo
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https://lattes.cnpq.br/4199122391532470
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https://lattes.cnpq.br/7860027005969838
Industrialization in the Brazilian construction industry is a growing trend, while the need to fulfill tight deadlines increases as well as labor costs, being mandatory to keep quality standards and the competitiveness of enterprises. In this sense, the precast concrete is an increasingly valid solution.Among him, the floor in hollow core slabs of prestressed concrete, as part of a constructive system of open cycle. This kind of floor can be applied in various sectors and to the most varied typologies. The ABNT NBR 14861: 2011 is still quite new, and includes a set of quality control care for the implementation of hollow core slabs in prestressed concrete, although it is felt that the respective degree of detail could be improved.On the other hand, the standard has just focusing on such care specially concerning project and product approaches, and not so much with a process approach. There is also some difficulty in the flow of information and knowledge between the academy and industry in general. The dissertation provides a detailed analysis of production of hollow core slabs in prestressed concrete, according to the respective processes, since the inputs enter factories, until the structural cover is performed on site. The macro-production process is divided into several stages of lower complexity, and contains a detailed listing of quality control procedures required, in a simple and practical manner. Thus, can be established a kind of a guide to good quality control practices for the production of LACP, which is then systematized through a set of checklists. The establishment of guidelines for good quality control practices in the various LACP production stages is the main goal of this research. In order to accomplish this goal have been made extensive literature reviews on Quality and hollow core slabs, using theses, dissertations, monographs, papers, magazines and electronic sites. Were also made visits to a factory which produces equipment for production of hollow core slabs, and to a plant producing LACP, in the interior of the state of São Paulo, during which were made unstructured interviews with their maximum management responsables. Finally it was made an essentially qualitative comparative analysis of the data collected and the quality control procedures of the ABNT NBR 14861: 2011. It is intended, with the checklists contained in the dissertation, to ensure production, transportation to site, installation of LACP and execution of the respective structural wrapper, with the highest quality consistency that is possible, thereby minimizing to minimum the existence of possible non-compliances.
Avaliação da limitação ventilatória e dos índices da potência circulatória e ventilatória de pacientes com doença arterial coronariana
(Universidade Federal de São Carlos, 2015-02-11)
Castello-Simões, Viviane
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Catai, Aparecida Maria
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https://lattes.cnpq.br/5801652590531684
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https://lattes.cnpq.br/8573168804662842
This thesis consisted of two studies described below. The Study 1 aimed to investigate if expiratory flow limitation (EFL) present at moderate intensity exercise in subjects following myocardial infarction (MI) (as shown in a previous study conducted in our laboratory) already manifests in those with stable coronary artery disease (CAD). Forty-one men aged 40-65 years were allocated into four different groups: 1) stable coronary artery disease (SCADG) (n=9), 2) recent myocardial infarction (RMIG) (n=8), 3) late myocardial infarction group (LMIG) (n=12), and 4) health control group (CG) (n=12). Two cardiopulmonary exercise testing (CPX) at constant workload (moderate and high intensity) were applied and EFL was evaluated by exercise flow-volume loops. We observed that during moderate intensity exercise the RMIG and LMIG presented with a significantly higher number of subjects with EFL compared to the CG, while no significant difference was observed among groups at high intensity exercise. Regarding the degree of expiratory flow limitation, the RMIG and LMIG showed significantly higher values at moderate intensity exercise when compared to the CG. At high intensity exercise, significantly higher values for the degree of expiratory flow limitation were observed only in the LMIG compared to the CG. We concluded that an EFL was only present in MI groups (recent and late) during moderate intensity exercise; whereas at high intensity exercise all groups presented EFL. Thus, EFL observed at moderate intensity exercise in both MI groups may be linked to the consequences of event and not to CAD. Following, the Study II aimed to investigate the indexes of circulatory (CP) and ventilatory power (VP) in CAD patients. Eighty-seven men were studied aged 40-65 years, being 42 subjects in the CAD group and 45 in the CG. CPX was performed on a treadmill and the following measures were obtained: 1) peak oxygen consumption (VO2), 2) peak heart rate (HR), 3) peak blood pressure (BP), 4) peak rate-pressure product (peak systolic BP x peak HR), 5) peak oxygen pulse = (peak VO2/peak HR), 6) the oxygen uptake efficiency (OUES), 7) the carbon dioxide production efficiency (VE/VCO2 slope), 8) CP (peak VO2 x peak systolic BP) and 9) VP (peak systolic BP/VE/VCO2 slope). The CAD group had significantly lower values for peak VO2, peak HR, peak systolic BP, peak rate-pressure product, peak oxygen pulse, the OUES, CP and VP and significantly higher values for peak diastolic BP and the VE/VCO2 slope compared to the CG. Furthermore, a stepwise regression analysis showed that CP was influenced by the group and VP was influenced both by group and by number of vessels with stenosis after treatment. Given the findings, we concluded that the indices of CP and VP were lower in men with CAD compared to CG. Thus, both studies brought important findings related to the responses of the cardiovascular, pulmonary and musculoskeletal systems of patients with CAD during physical exercise, bringing many contributions to clinical practice and assisting in the prescription of exercise training.
Síndrome da fragilidade e complexidade do controle postural baseado na análise de entropia
(Universidade Federal de São Carlos, 2015-02-11)
Carmelo, Verena de Vassimon Barroso
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Takahashi, Anielle Cristhine de Medeiros
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https://lattes.cnpq.br/8336705133403404
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https://lattes.cnpq.br/7496298739077529
Frailty Syndrome represents a clinical state of vulnerability, resulting from decline of resilience and physiological reserves and it is associated with adverse outcomes such as falls. Thus, the aim of this study was to evaluate the complexity of oscillations of center of pressure (CoP)in the frailty syndrome before and after a functional task. CoP oscillations in the anteroposterior (AP) and mediolateral (ML) direction was obtained by a force platform in a quite-standing position, 30 seconds before and after standing from a chair. Additionally, it was performed the timed up and Go test (TUGT). The complexity of CoP oscillations was analyzed by entropies: corrected approximate (CApEn), sample (SampEn) and conditional (CI), as well as their normalized versions (NCApEn, NSampEn and NCI). Linear data of CoP oscillations were obtained by amplitude, RMS and the total average speed (TAS). Repeated measures two way analysis of variance was carried out to evaluate the effects of groups, time (pre and post-functional task) and the interaction between them for complexity variables. Forty-two elderly were evaluated, divided into groups: nonfrail (n = 15; 75.6± 4.2 years), prefrail (n = 15; 78.9± 6.8 years) and frail (n = 12; 73.0±19.2 years). In the AP direction, only nonfrail and pre-frail elderly subjects showed significant reduction after functional task in CApEn, NCApEn, SampEn, NSampEn and NCI and significant increase in RMS. In the ML direction, only nonfrail showed significant reduction in complexity after functional activity in CApEn, NCApEn, SampEn and NSampEn. All groups showed significant increase in the RMS after the functional activity in the ML direction. A significant correlation was observed between the performance on the TUGT and the complexity indices (CApEn and NCApEn) in post- functional task only for nonfrail subjects in the AP direction. Then, after a voluntary disturbance on balance, frail elderly subjects show no variation in CoP oscillations entropy indexes suggesting a deficit in the postural control, possibly because the basal values are already reduced.
Zonação em costões rochosos abrigados do Atlântico subtropical: variação espacial das comunidades, efeitos do biofilme e da mortalidade diferencial de cracas
(Universidade Federal de São Carlos, 2015-02-12)
Siquitelli, Jaqueline Cristiane
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Tanaka, Marcel Okamoto
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https://lattes.cnpq.br/2768658925977757
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https://lattes.cnpq.br/0793105873848971
The zonation of rocky shores results from the action of physical and chemical factors and of biological interactions within the benthic assemblages, being a good model to investigate factors that structure biological communities. In the present study, the objective was to evaluate the processes influencing a particular zonation pattern in sheltered rocky shores of Southeastern Brazil. The intermediate and lower midlittoral in these environments is a zone mainly formed by bare rock, or biofilm, presenting only few individuals of the barnacle Tetraclita stalactifera or other filtering-feeding species, whereas the upper midlittoral is dominated by the barnacle Chthamalus bisinuatus. In this way, we first evaluated the variation in these communities at three spatial scales (within shores, between shores and between regions), to identify the extension of the pattern (Chapter 1). Then, we carried out two experiments to test the assumptions that 1) the pattern would be determined by biofilm action, which would be distinct in the two zones and thus influence barnacle recruitment differentially; 2) the pattern would be determined by higher barnacle mortality in the lower zone, probably caused by higher predation pressure in this zone (Chapter 2). Our results allowed us to conclude that the main source of variation in the communities studied was usually at small spatial scales, meaning that the structuring processes in these communities would also occur at small scale. Barnacle recruitment during the study was excessively low and not correlated with different heights on the midlittoral, whereas the biofilm was more abundant in the lower midlittoral. In this midlittoral zone, barnacles showed higher mortality than in the upper midlittoral, evidencing strong effects of differential mortality structuring the community, although few predators were sampled in the studied areas. Thus, the present study contributes to our understanding of structuring processes in subtropical sheltered rocky shores, generating a reference framework on the system studied and subsidizing studies on environmental impacts.
Expressão/Interação Oral nas Aulas de Espanhol: Crenças de alunos de escolas da rede pública e privada de São Carlos sobre o seu trabalho em sala de aula
(Universidade Federal de São Carlos, 2015-02-12)
Hernandes, Luan Lee
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Míguez, Antón Castro
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https://lattes.cnpq.br/6829358449068280
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https://lattes.cnpq.br/4249451648597370
En este trabajo, se discuten cuestiones respecto a las creencias de los alumnos de la educación secundaria de dos escuelas (pública y privad) respecto a la importancia de la lengua española, cómo la estudian, cómo se da la expresión/interacción oral, en el aula, en la lengua-meta y para qué (o si) pretenden usarla en el futuro. A partir de esas discusiones, se trabajó el objetivo principal de esta investigación: la creencia de los alumnos respecto al trabajo con la expresión/interacción oral desarrollado en las clases. Para tal fin, se empleará la siguiente metodología, dividida en tres etapas: (1) acompañamiento y observación de las clases; (2) aplicación de un cuestionario; y (3) organización de un Grupo de Discusiones (GD). En la primera etapa, se observó cómo se organizan las clases y cómo los alumnos interactúan en el aula. A partir de esas observaciones y de las lecturas realizadas (a partir de los presupuestos teóricos de la Lingüística Aplicada –creencias acerca de la enseñanza-aprendizaje– y las teorías e hipótesis desarrolladas por Stephen Krashen), se elaboró un cuestionario, aplicado en los dos grupos (alumnos de un Centro de Estudo de Línguas –CEL– y alumnos de un colegio privado), que intentó comprobar (o no) algunas cuestiones observadas durante la etapa anterior en relación con las creencias de esos alumnos acerca del trabajo con la expresión/interacción oral durante las clases. La última etapa partió del análisis de los dos instrumentos anteriores y se buscó comprobar (o no) las hipótesis generadas por medio de los instrumentos anteriores, o sea, que, a pesar del interés de los alumnos por la lengua, ellos no se sienten seguros/motivados para interactuar en la lengua meta durante las clases. Para esa última etapa, se empleó la técnica del GD, cuyo objetivo era conocer las creencias de los informantes acerca de lo que sería la expresión/interacción oral, como ella es trabajada (o no) en el aula, bien como los factores (internos y externos) que dificultan/impiden la expresión/interacción oral en español durante las clases.
Revisitando o espaço escolar: os sentidos produzidos pelos professores sobre o SARESP na escola prioritária
(Universidade Federal de São Carlos, 2015-02-12)
Nogueira, Danielle Cristina
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Varani, Adriana
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https://lattes.cnpq.br/2971233303849752
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https://lattes.cnpq.br/1598743901259371
This study aims to understand the sense made by teachers about the external evaluation called SARESP (São Paulo State System of School Performance Evaluation) in a priority public school in São Paulo?s countryside. Theoretical support are used some authors who are dedicated to assessing the theme as Freitas, Barriga and Luckesi. In order to understand the meanings produced by teachers, this research opt for the qualitative methodology, case study, in which I propose to analyze the speeches of the subjects involved in this school context for understanding the relationship between the events described and the school failed, Since the school is considered a priority for the Secretary of Education of São Paulo (SEE-SP) due to low results obtained in SARESP. In this analysis I appropriate the concept of sense and meaning proposed by Vygotsky to understand from their comments, to the methodological construction of the research I appropriate to Lüdke, André and Certeau and discussion about school failure and use as a reference Esteban Patto. The data and analysis from the theoretical framework and statements of the teachers, signal the blame teachers for the results of this assessment creating a network of guilty that begins by category, but evolves in the use of their tactics to a larger share of blame for the Portuguese language and mathematics teachers. In the culprits game apex is the student himself in the individualization of failure, institutionalized as intellectual deficient. The data also led us to the need to understand what becomes the intellectual deficiency, understood as an element of materiality of school failure in this dissertation
Utilização de big data analytics nos sistemas de medição de desempenho: estudos de caso
(Universidade Federal de São Carlos, 2015-02-12)
Mello, Raquel Gama Soares de
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Martins, Roberto Antonio
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https://lattes.cnpq.br/3518820028045730
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https://lattes.cnpq.br/7172926933347010
Big data is associated with large amounts of data of different types that come from different sources in a very fast way, able to add value to business and with veracity. Nowadays, many companies are looking for ways to extract useful information from this huge amount of data. This can be attained applying analytical techniques. The application of these techniques to big data is denominated big data analytics. It can influence how managers make their decisions and manage the company businesses. This influences the use of performance measurement systems (PMSs). These systems are composed by a multidimensional set of performance measures that can support decision making and business planning. This way, performance measurement systems and big data analytics can be used to support decision making and the implementation of actions. There is evidence, in the literature, that big data analytics can be used in performance measurement systems. Following this context, this study aims at investigating how companies apply the big data analytics in using performance measurement systems. To achieve this objective, a systematic literature review was carried out for checking existing studies on the relationship between big data and performance measurement system. Then, case study method was applied. The empirical findings showed that big data analytics supports the decision making process, making it more efficient and effective. The results showed that big data analytics helps PMS identify, through analyses, how past actions can influence the future performance. Such analyses are in essence descriptive and predictive and it was applied in sales process. The empirical findings from the case studies showed that big data analytics contributes mainly to the use of PMSs related to planning and to influencing behavior. Therefore, it is possible to conclude that there is a contribution when big data analytics is used in performance measurement system.
Desenvolvimento de sensores nanoestruturados para análise de tetraciclina em leite
(Universidade Federal de São Carlos, 2015-02-13)
Scagion, Vanessa Priscila
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Corrêa, Daniel Souza
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https://lattes.cnpq.br/0461451015026948
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https://lattes.cnpq.br/8411639103941965
This work deals with the application of two arrays of sensors composing an electronic tongue for the quality evaluation of UHT-type milk, with the specific aim of detecting the antibiotic tetracycline in this dairy product. The electronic tongue device was made up by sensing units composed by gold interdigitated electrodes assembled onto glass substrates. Polyamide 6 (PA6) nanofibers and PA6/polyaniline (PAni) blends were deposited on the electrodes via the electrospinning technique. The nanofibers were characterized by means of scanning electron microscopy (SEM), X-ray diffraction (XRD), FTIR spectroscopy, Raman spectroscopy, differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA/DTG). The electronic tongue measurements were carried out using an impedance analyzer to collect capacitance and resistance data at 1 KHz. As chemometric tool we employed the Principal Component Analysis (PCA) technique to verify the efficiency of the electrospinning nanofibers-based electronic tongue in distinguishing different types of milk, as well as those contaminated by tetracycline. The results showed that the use of PAni for obtaining polymer blend fibers caused some small changes on the physical chemical properties compared to the neat PA6 fiber. However, PAni addition allowed a great reduction on the fiber diameter. Our results demonstrated that the electronic tongue system is a potential methodology to be used for classifying milk samples, in terms of fat content and quality regarding the presence of antibiotic tetracycline. The electronic tongue system system was able to detect milk samples contaminated up to 1ppb of tetracycline, regardless of milk fat content.
Softwares educativos no contexto da alfabetização e do letramento nos anos iniciais do ensino fundamental
(Universidade Federal de São Carlos, 2015-02-13)
Landin, Rita de Cassia de Souza
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Monteiro, Maria Iolanda
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https://lattes.cnpq.br/4189205834370563
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https://lattes.cnpq.br/9819875536500712
In recent years we observed an increase in the number of computers, internet, software and other technologies and technological resources of information and communication in school environments (ALONSO, 2008; KENSKI, 2007; 2012). The educational use of technological information and communication resources requires the development of teacher knowledge (TARDIF, 2012) that allow the contemporary teacher pedagogical work through the digital society (KENSKI, 2012). In this context, the process of literacy and literacy remains fundamental. Thus, the main objective of this research is the reflection of teaching knowledge (TARDIF, 2012) for the use of these resources, specifically of educational software for literacy and literacy. Therefore, we aimed specifically: 1) mapping the use of digital technology resources in the investigated school units; 2) description and analysis of teaching experience with the use of educational software in the early years of primary education, specifically in literacy and literacy process (KLEIMAN, 1995; MONTEIRO, 2010; SOARES, 2004; 2013); c) research and analysis of the conceptions and methods of literacy and literacy activities that support the selected educational software. The research was guided on the qualitative method (LÜDKE; ANDRÉ, 1986), with a theoretical framework on the technological resources of information and communication, teacher training and literacy and literacy; mapping the use of educational software in six public schools in the early years of elementary schools of São Carlos/SP through questionnaires; interviews in two public schools, with teachers about their teaching and methodological experiences with the use of educational software in the literacy process and literacy and epistemological analysis of educational software. We seek to build theoretical knowledge that will permit the teaching critical look at these resources, basing the assessments of their potential and limitations for literacy and literacy. At the same time, scoring undertake knowledge teachers needed for teacher training, both initial and ongoing, for the critical use of these resources in order to insert them as educational and methodological resources complementary teaching practices. We observed that the educational context is a rich and important source in the consolidation of teaching knowledge (TARDIF, 2012) for both the use of ICT, and in relation to the methods and conceptions of literacy and literacy, and the experiential knowledge a rich source of learning and professional development. However, we also see the need for strengthening of knowledge on which to base concepts, methodologies and teaching about the literacy and digital literacy (FANTIN; GIRARDELLO, 2009) and media literacy (WILSON et al, 2013).
Oxidação de monóxido de carbono sobre catalisadores à base de ferro ou manganês suportados ou trocados em zeólitas H-mordenita ou Ce-mordenita
(Universidade Federal de São Carlos, 2015-02-18)
Sena, Homero Jacinto
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Urquieta-González, Ernesto Antonio
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https://lattes.cnpq.br/0220906938149410
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http://lattes.cnpq.br/2389975677904655
The fluid catalytic cracking (FCC) is one of the most important process in the petroleum refining industry, being responsible for the increase of the yield of the most valuable light hydrocarbons. On the other hand, the FCC process generates big amounts of CO, NOx and SOx emissions. The CO emissions from the most of pollution sources are abatement using noble metal based catalysts. However, the growing demand and scarcity of those metals have caused an increase in the process cost and consequently promoting studies to find alternative catalysts with comparable efficiency and lower in cost. In this respect, the literature had presented interesting results with transitions metal catalysts. Thus, the objective of this work was to prepare exchanged or impregnated Fe or Mn on H-mordenite or Ce-mordenite, which were evaluated between 150 and 550 oC in the CO oxidation with O2, in the presence or absence of interfering compounds (water steam or SO2). The catalysts were characterized by ICP-OES, DRX, DRS-UV-VIS and Mössbauer spectroscopy. The results showed that the preparation procedures of the interchanged or impregnated Fe or Mn catalysts were adequate, and no mordenite crystallinity loss was observed. Contrary to the exchanged Fe or Mn based catalysts, those based on impregnated Fe or Mn oxides showed a important potential as catalysts in the CO oxidation with O2. Then, in the applied operational conditions the Ce-MOR/Fe10, Ce-MOR/Mn5, Ce-MOR/Mn10 e H-MOR/Mn5 catalysts were able to produce an effluent with CO content lower than 500 ppm, which is the allowed limit by the environmental regulations related with FCC units. In the presence of water steam the evaluated Fe or Mn catalysts presented activity loss that was recovered after the elimination of that interfering from the feed. Nevertheless, in the presence of SO2, the tested catalysts showed an irreversible and significantly activity loss.
Sentidos e significados manifestos por licenciandos e pós-graduandos ao produzirem atividades de ensino de matemática na perspectiva lógico-histórica
(Universidade Federal de São Carlos, 2015-02-18)
Rezende, João Paulo
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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/5466506680401535
This current research, of qualitative nature, has been led by the question: which senses and meanings can be produced by undergraduate and graduate students while they experience, study and create teaching activities from a logical-historical perspective? Our aim was to identify and analyze the senses and meanings manifested by two subjects that composed a group of ten undergraduate and three graduate students, who gathered virtually and in person, over a semester, to reflect collectively upon the organization of teaching by means of teaching activities founded by the logical-historical perspective. To conduct the research, we sought theoretical fundaments in the logical-historical dialectical perspective on theoretical constructs that deal with Teaching Orienting Activities (AOE in Portuguese) and with the concepts of sense and meaning studied by Vygostsky. The gatherings took place in the context of the Integration, Teaching, Research and Extension Curricular Activity (ACTEPE in Portuguese) entitled: “When the history of Mathematics becomes a teaching methodology,” and they were split in three blocks: the first was aimed at motivation to work under a logicalhistorical perspective; the second one, at the study and deep analysis of it; and the third one, at the organization of teaching activities founded by this perspective. The following instruments were used to constitute research data: a field journal; narratives; audio recording of the gatherings, which were transcribed; forums held in a virtual environment; and propositions of activities that were designed or adapted by the participants and presented in the last gatherings. Upon these propositions and three specific criteria, two participants, whose trajectories were followed along the sixteen gatherings, were selected. The senses and meanings manifested by the subjects, in the context of the present study, show that organizing teaching from a logical-historical perspective can allow the involved students to seize the concepts through the exercise of thinking about them, making it possible for the learners to feel the need for developing the concept. They also show that the conceptual nexuses - both internal and external - are important theoretical constructs when working under this perspective, for they perceive internal nexuses as those which are not made explicit to the students by a formal concept representation, but they are fundamental to understand it. This meaning makes it important to evince these nexuses to organize teaching. Nevertheless, it is necessary to learn them and history can make it possible, for it holds the conceptual development process and the product of that development.
Estudo químico e histoquímico das glândulas metapleural e labial de formigas cortadeiras e a influência destas nas relações simbiontes presentes nos jardins de fungo
(Universidade Federal de São Carlos, 2015-02-18)
Malaquias, Karla da Silva
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Fernandes, João Batista
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https://lattes.cnpq.br/2691336077459602
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https://lattes.cnpq.br/9355137132419735
Leaf-cutting ants are considered the most derived insects on the planet. The performance in maintaining the aseptic conditions of the colonies is a key factor of the ecological success of these ants. Several defenses are used by ants, among them stand out chemical defense and mutualistic associations. The last of which is variable as it is dependende the species and / or environment in which they are the nests. So this article aims at a more detailed study the action of chemical defense mode, the form it manifests itself in different species of leaf-cutting ants, which have different degrees of derivation. The study was divided into two parts, the first investigated the chemical and histochemical composition of metapleural and labial glands of five species of leaf-cutting ants. Acids and hydroxy acids were identified and quantified, as main cosntituintes. These have antimicrobial action to pathogens present in the colony. The concentration and ratio of the compounds is directly related to species and variety. Histochemical analyzes revealed great similarity between species, demonstrating a relationship with the function of these glands. Enzymes that play an important role in the social order were evidenced by histoenzimáticos experiments. In the second part, as it was known the morphology of the glands, the search for inhibitors of enzymes present in the gland that provide natural protection to the colony to break the natural chemical defense. An enzyme that plays a major role in the secretion of acid is the fatty-acid synthase (FAS). At the present stage, cerulenin analogues were synthesized, known inhibitors of FAS in order to study the structure-activity relationship of these compounds.
Discursos do sucesso: a produção de sujeitos e sentidos do sucesso no Brasil contemporâneo
(Universidade Federal de São Carlos, 2015-02-19)
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 study analyzes the discourse on the success produced in contemporary Brazilian society. The corpus consists of editions of the magazine Caras and arising from the self-help literature books. More precisely, our research aims to describe and interpret the success of senses and subjects production process, to the extent that this is built by discursive practices of media and self-help literature, considering the fact that these discursive fields are privileged place of establishment of new subjectivities and new desires. Thus, this research aims to: 1) understand the meanings and the subjects produced among media, more specifically, in the magazine "Faces" in the issues of the first half of 2013, focusing on language resources, enunciative and textual employed in discursive constitution its publications, seeking to infer its recurrence in the production of certain effects of sense of success and their relationship with the interlocutors; 2) understand the meanings and subjects made in self-help literature, filigree, books whose titles are O sucesso está no equilíbrio (2006), O sucesso passo a passo (2010) and O sucesso de amanhã começa hoje (2005), in order to interpret their operating modes as tutorials to rise to success; 3) analyze the relationship of differences and similarities between the senses and subject these two forms of (re) production and spread of successful speech. Thus, we consider the postulate of speech analysis of formulated as follows by Orlandi (2012, 88 p.): subject and constitute sense while being identification processes based on the fact that a movement identity is history . If the subject and the senses are simultaneously at the meeting of the tongue with history, this meaning, speech, subjects and meanings of success will also be produced by speech. Before this situation, we propose in this dissertation expose a brief investigation of the senses on the speech of success in the current Brazilian society. Therefore, the methodological procedures used in the development of this work are based on qualitative research, the development of which we seek to identify linguistic-discursive regularities of statements of success and interpret the production of its subjects and senses through the development of parafrastics chains in order to infer its discursive formations.
Os "inconvenientes" na escola: um estudo sobre a medicalização de crianças e adolescentes e suas estratégias de resistência
(Universidade Federal de São Carlos, 2015-02-19)
Antoneli, Patrícia de Paulo
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Garcia, Marcos Roberto Vieira
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https://lattes.cnpq.br/3911188481669270
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https://lattes.cnpq.br/2100672519496341
This dissertation aims to investigate the medicalization device (dispositif) of children and teenagers inside the Brazilian public school (elementary to high school) in order to understand which effects have been produced in their subjectivities and their treatment, school and familiar history. We have used in this research the category named ?inconvenient? to speak of children and teenagers: those who do not learn what the school and the society want them to do but they can learn inside the school what this one does not expect them to do, i.e., they break the school discipline and the established order; they do not adapt themselves to the hegemonic models; they differ from what is expected, and therefore they are the abnormal and are deviant in relation to the existing rules. Discussing about medicalization is to talk about the way the management of life in all its instances has been built, it is to think of a dispositif that operates through the biopowers and produces biopotency. This research was performed in two moments, one quantitative approach and another, qualitative one. At first, we established the diagnoses of children and teenagers who were seen at the Mental Health Service system whose reports were taken from the diagnoses study found in the database of this health service. Subsequently, the main diagnoses of children and teenagers were identified related to the school complaints, according to the age and gender. From the descriptive analysis of the data, that is, from the diagnoses identified, we have found as a meaningful datum, the diagnosis of a disorder of school skills (F81) in a great proportion in the ages between 8-12 and 13-17 years-old. However, in the ages between 18-22 years-old, this diagnosis decreased and got a significant proportion in the diagnosis of Mental Retardation (F70). Hence, we have discussed that these provisional diagnoses in ..
Aplicação de técnicas de Fluidodinâmica Computacional (CFD) na avaliação da hidrodinâmica e da transferência de massa em estágio de coluna de destilação
(Universidade Federal de São Carlos, 2015-02-19)
Zanutto, Conrado Planas
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Gonçalves, José Antônio Silveira
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https://lattes.cnpq.br/0337997526924402
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https://lattes.cnpq.br/9771478366805449
Distillation is one of the most important industrial separation techniques. It requires high quantity of energy, corresponding to around 40% of the total energy consumption of chemical industries. As such, the optimization of a distillation column is indispensable, and it is only possible from the knowledge of the fluid dynamics phenomena occurring within the column. Some of models used for this, such as the models based on equilibrium and non-equilibrium stage concepts, usually provide useful results, but consider empirically many of the fluid dynamics phenomena by assuming a perfect mixture in each phase. In recent years, the advent of the high-speed computers combined with the development of accurate numerical methods for solving physical problems has revolutionized the way we deal with fluid dynamics phenomena. Computational fluid dynamics (CFD) techniques allow a microscopic description of the physical characteristics of the fluid motion. The main purpose of this study was develop a computational fluid dynamics model for gas-liquid flows that was able to predict the hydrodynamics and mass transfer on a sieve tray. A two-phase, three-dimensional and transient model, in an Eulerian-Eulerian framework was proposed for air/water (25°C) and ethanol/water systems at 1 atm. The continuity, momentum and mass equations were used to describe the gas and liquid phases. The sieve tray geometry simulated was based on experimental work of Solari e Bell (1986). The variables predicted were the velocity profiles, volume fraction of each phase, clear liquid height, recirculation areas, mass fraction and efficiency. The hydrodynamic and mass transfer model predictions were compared with experimental and numerical data from some authors and presented good agreement. This study shows that CFD can be used as a powerful tool for sieve tray simulation.
Habilidades sociais na relação médico-paciente e satisfação no atendimento em serviço público e privado
(Universidade Federal de São Carlos, 2015-02-19)
Jorge, Cynthia Carvalho
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Reis, Maria de Jesus Dutra dos
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https://lattes.cnpq.br/8868678989340770
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https://lattes.cnpq.br/1213429130471501
The Doctor-Patient Relationship has been identified as an important variable in Health Care’s adherence, efficiency, and effectiveness; The Doctor’s Social Skills, seem to be essential components in its establishment. The general aim of this study was to evaluate doctors’ social skills who works in social and private health systems, examining the relations between these skills and patient satisfaction with regard to the medical consultation. The Study 1 describes the Matched-Pair Instrument (MPI)’s translation and cultural adaptation; the instrument assesses doctor’s social skills during a consultation. Nineteen (19) individuals were involved in the translation and adaptation process. Psychometric analyzes showed satisfactory internal consistency for the patients version (Cronbach's alpha: α= 0,893), presenting similar properties to the original version. The Study 2 aimed to evaluate the social skills of doctors in both Social and Private Health System, considering the self-perception of the professional and the patient’s perceptions, and, examining how the interaction of these variables influence on patient satisfaction. The participants were 195 patients and 30 physicians, distributed in both health systems. The instruments used in the study were: the translated and validated version of the Matched-Pair Instrument (MPI), a Partial Version of the Social Skills Inventory (HIS-Del-Prette), and the Medical Care’s Patient Satisfaction Evaluation Questionnaire (QASPAM). The overall average scores in the MPI for both Patients (M = 77.5, SD = 12.3) and Physicians (M = 76.5, SD = 11.8) showed low, positive and statistically significant correlation (r = 0.16, p = 0.030); The Patients showed significantly higher ratings than the Doctors’ one. The professionals of social health system evaluated themselves as less skilled (M=69,93; SD=13,55) than the participants of private system (M=76,5; SD = 10.1). These data were similar to those obtained in the analysis of the patient’s questionnaires, since the overall average of public system patients (M=72.31; SD= 12.25) was significantly lower than the average of the private system (M=80.80; SD= 10.59). The professionals who worked in both health systems rated themselves, and were rated by their patients, as significantly (p <0.000) more skilled in the private system consultation than in the social one. Patients showed satisfaction with the service offered in both social and private health systems; however, private attended patients presented higher satisfaction’ scores. The scores levels of discontentment in the socials’s attended patients were relatively higher than those of the private system, especially in the following items: The Waiting Time in the office, before the consultation; the duration of the medical consultation and Medical Sensitivity. Future research have been suggested to increase the validity of the instruments used for the investigation. The results of this study seem to show that physicians who work in the private service evaluated up and received more satisfactory evaluations of their patients, in relation to social skills and satisfaction with care, than those who work in the public service. The data obtained in this study emphasized the relevance of both evaluation and training social skills for health professionals.