Browsing by Issue Date, starting with "2014-03-22"

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O estudo em grupos para a 2ª fase da OBMEP 2013 e resoluções de questões em vídeo
(Universidade Federal de São Carlos, 2014-03-22)
Dias, Edgar Heliodoro Vendramelli
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Malagutti, Pedro Luiz Aparecido
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https://lattes.cnpq.br/5462523657624050
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https://lattes.cnpq.br/9416777759260664
This dissertation presents the study done on Municipal School Professor Valdomiro Casagrande, town of Dois Córregos SP about the Brazilian Mathematical Olympiad of Public Schools (OBMEP 2013), working with study groups who sought a better preparation of students for the proof of the second phase in 2013. The dissertation was developed using Didactic Engineering, passing through the steps of previous analyses, a priori concepts, application of experience and a posteriori analyses. This work presents the results obtained with these study groups, awards won by students in 2013 and also the results obtained in the motivational issue much required for mathematic education. Still on the work, are made critical analysis of issues of proof of OBMEP 2010, OBMEP 2011, OBMEP 2012 and OBMEP 2013 (first and second phases), with students and teachers feedback about the content addressed in evidence and with the mathematical theory that each one presented. The work presents the making of an educational DVD, non-profit, with resolutions of issues of OBMEP 2013 (second phase) elaborated by the participating students of the second phase and by the school Mediator, DVD which will be exposed in the Blog of the school and Will serve as material for dissemination of OBMEP 2014 at school and in the municipality.
Classificação de data streams utilizando árvore de decisão estatística e a teoria dos fractais na análise evolutiva dos dados
(Universidade Federal de São Carlos, 2014-03-24)
Cazzolato, Mirela Teixeira
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Ribeiro, Marcela Xavier
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https://lattes.cnpq.br/0300141044144026
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https://lattes.cnpq.br/5404143204431052
A data stream is generated in a fast way, continuously, ordered, and in large quantities. To process data streams there must be considered, among others factors, the limited use of memory, the need of real-time processing, the accuracy of the results and the concept drift (which occurs when there is a change in the concept of the data being analyzed). Decision tree is a popular form of representation of the classifier, that is intuitive and fast to build, generally obtaining high accuracy. The techniques of incremental decision trees present in the literature generally have high computational costs to construct and update the model, especially regarding the calculation to split the decision nodes. The existent methods have a conservative characteristic to deal with limited amounts of data, tending to improve their results as the number of examples increases. Another problem is that many real-world applications generate data with noise, and the existing techniques have a low tolerance to these events. This work aims to develop decision tree methods for data streams, that supply the deficiencies of the current state of the art. In addition, another objective is to develop a technique to detect concept drift using the fractal theory. This functionality should indicate when there is a need to correct the model, allowing the adequate description of most recent events. To achieve the objectives, three decision tree algorithms were developed: StARMiner Tree, Automatic StARMiner Tree, and Information Gain StARMiner Tree. These algorithms use a statistical method as heuristic to split the nodes, which is not dependent on the number of examples and is fast. In the experiments the algorithms achieved high accuracy, also showing a tolerant behavior in the classification of noisy data. Finally, a drift detection method was proposed to detect changes in the data distribution, based on the fractal theory. The method, called Fractal Detection Method, detects significant changes on the data distribution, causing the model to be updated when it does not describe the data (becoming obsolete). The method achieved good results in the classification of data containing concept drift, proving to be suitable for evolutionary analysis of data.
Modelagem e simulação de uma destilaria autônoma de produção de etanol de primeira geração (E1G)
(Universidade Federal de São Carlos, 2014-03-24)
Fonseca, Gabriel de Castro
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Giordano, Roberto de Campos
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https://lattes.cnpq.br/4378950347916839
Most of the operations in an autonomous distillery for production of ethanol are carried on in a continuous fashion. The fermentation stage, however, may be projected to work either continously or semicontinuously. The steady-sate continuous operation (after the start-up) may be easily coupled to other unit operations of the process. On the other hand, in the semicountinuous operation, each fermentation vat operates in unsteady state, thus it is necessary to design a set of vats that enables the coupling between the fermentation and the process, which may be challenging. This study intended to implement mathematical models in EMSO process simulator of both industrial configurations of the fermentation process: a system of six parallel fed-batch bioreactors and a system of four continuous steady-state bioreactors in series. The process was modeled at macroscopic level based on the material balances for cells, substrate and product. Kinectic models accounting for product and substrate inhibition were used. Both configurations were added to a previously built model of a complete autonomous distillery in which the fermentation stage was represented by a stoichiometric conversion model. In the fed-batch process, due to the solution of mass and energy balances in the fermenters, it was possible to observe the temporal evolution of variables such as the concentrations of yeast, sugar and ethanol in their interiors, the volume of solution in each fermenter and the rate of heat removal needed in order to keep the fermenters temperatures constant. The simulated autonomous distillery processes 500 t/h of cane with varying levels of sucrose. For a content of 13% sucrose, 338.0 t/h of centrifugated wine were obtained in the continuous operation, containing 8.3% by weight of ethanol, which resulted in the production of 30.1 t/h of hydrate ethanol containing 93.5% ethyl alcohol in weight. In fed-batch operation, 417.5 t/h of centrifugated wine (6.3% ethanol by weight), which resulted in 27.9 t/h of hydrous ethanol (93.5% by mass). In both configurations, simulations were performed to evaluate the influence of the sucrose content in the process input (11 to 15% by weight of sucrose) over the process response. The results of these simulations were compared to those obtained for the model of stoichiometric conversion under the same conditions. Regarding the three evaluated configurations for the fermentation stage, it was observed that the model of stoichiometric conversion can be properly employed in the simulations, being mostly suitable for optimization studies of the autonomous distillery with semicontinuous operation due to its fast convergence. However, it is worth mentioning that the inhibitory effects are not reproduced in the fermentation step for this model, thus preliminary studies should be performed using the mathematical model implemented in continuous or discontinuous configuration.
Avaliação do catalisador CTA-MCM-41, modificado por poliacrilatos, na transesterificação de monoéster
(Universidade Federal de São Carlos, 2014-03-24)
Cruz, Fernanda Tátia
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Cardoso, Dilson
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https://lattes.cnpq.br/2462847535959232
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https://lattes.cnpq.br/9642834984473672
The silica hybrid CTA-MCM-41 (where CTA is the cetyltrimethylammonium cation) was synthesized and used in the transesterification of ethyl acetate with methanol. This is a model reaction used to test basic catalysts for the production of biodiesel from vegetable oils and fats. The basic sites in the catalyst consist of siloxy anions associated with CTA cations. In earlier work, it was found that progressive deactivation of the catalyst occurred when it was reused, due to leaching of the CTA cations located within the pores and on the external surface, resulting in partial loss of the basicity required for this type of reaction. The challenge of the present work was to stabilize the catalytic activity of CTA-MCM-41 by restricting the loss of cations from its interior (since the basicity derives from the interaction between the CTA cation and the siloxy anion). To this end, novel modifications were made to the synthesis of CTA-MCM-41, involving the encapsulation of acrylate monomers in the hydrophobic interior of the micelles followed by their subsequent polymerization using the application of ultraviolet irradiation together with a photoinitiator. The polymers formed then interacted with the hydrophobic tails of the micelles, which restricted the exit of CTA from the interior of the pores, hence improving the stability of the catalyst. The combination of the traditional synthesis method with polymerization using a microemulsion is innovative, because there are no reports in the literature that describe a synthesis in which the initial step is performed using emulsified polymers. The emulsions and the synthesized solids were evaluated using small angle X-ray scattering (SAXS). The materials were also analyzed by Xray diffraction, elemental (CHN) analysis, infrared absorption spectroscopy, scanning electron microscopy, and thermogravimetry. All these techniques helped to identify the presence of the monomer, as well as the polymer, in the channels of the CTA-MCM-41. It was confirmed that the presence of the polymer increased the catalytic stability of these new silica hybrids applied in the transesterification reaction.
Encontro de palavras em procedimentos restaurativos uma visão possível sobre a linguagem e seu funcionamento
(Universidade Federal de São Carlos, 2014-03-24)
Dias, Ana Beatriz Ferreira
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Miotello, Valdemir
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https://lattes.cnpq.br/9131819326282708
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https://lattes.cnpq.br/4121810228256604
Wiht this research, we offer our counterwords to practices of restorative justice developed in instances of juvenile criminal justice. Restless with the tactics of prevention and solution of conflicts that are being proposed by the restorative justice, we look forward to comprehend language elements and their operation on a modality of meeting called Restorative Circle , usually considered the main part of restorative procedures. More specifically, this work deals with the possibility of finding, in restorative practices carried out on oficial justice system, what Ponzio understands by other word , a singular and free word, marked by the right of otherness. Thus, the objective of this work consists in put ourselves listening to other word on restorative practices inserted in a context dominated by retributive justice, hegemonic view in judiciary system. To do this work, we take as its central signical materiality audio and video records from two Restorative Circles that occurred in 2009, by the Programa Justiça para o Século XXI (Justice for the 21 Century Program), by the Central of Restorative Practices Court of Childhood and Youth, to support the activities of the Third Pole of Regional Court of Childhood and Youth in Porto Alegre, instance that is responsible by the execution of social and educational measures. The comprehensions of the texts are based on the theoreticalmethodological assumptions suggested by Bakhtin Circle, which are here developed according to the evidenciary research paradigm proposed by Ginzburg. Considering the interpretive path we have traced in this research, we divided the methodology in two great parts: steps of selection and steps of comprehension. The first one comprises a set of necessary actions on the beginning of this research, envolving, to this the selection of objective reality, from the choosing of the central materialities to the checking of the research feasibility. The second one refers to the set of methodological guidelines adopted to guide the comprehensions of the texts. This step was done based on the four necessary moments of analysis and interpretation of the texts proposed by Bakhtin and developed by Geraldi: 1) The perception of the material dimensions of sign in this work, the unity of perception was centered on the word as an ideological sign. 2) Its recognition. 3) The comprehension of its meaning in certain contexts. 4) The active-dialogic comprehension of the texts. Witht this work, we understand that the meeting of words in the Restorative Circles have ideological conditions and practices to contribute to both the deconstruction of the realities of the identity humanism, world view that sustains the dominant social relations, and the construction of a new humanism, the otherness one. Listening to the other word is a way tha could take to the humanization (the otherness humanism) of the social relations among victims, ofensors and their comunities of support, contribuiting, consequently, to the judiciary in order to reframe its actions.
O MSN de papel: um gênero também argumentativo
(Universidade Federal de São Carlos, 2014-03-24)
Moreno, Carolline Gabriela Leite
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Brito, Maria Isabel de Moura
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https://lattes.cnpq.br/2643801218794087
MSN Paper proposal is constituted of written interaction, in the form of conversation, via notebook paper. It can involve two or more students, having that the interaction is developed through the exchange of rotations which may have the format of question/answer, assertive/response. At long last, this is the development of chat talk inside the classroom with a different tool from that usually used, once this is what is available to them. This proposal was adopted as an alternative pedagogical practice to work on the argumentation of an eighth grade (ninth year), working as a kind of unlock activity to the participant students. However, the object to be analyzed was not taken in its original format in the analysis herein developed, but in a deployment of type, once it was used for the pedagogical work with the argumentation, what makes it to transmute in another type. This transmutation of type consisted in the elaboration of a dialogue in the form the students already knew in pairs, from a theme proposed by the teacher. This practice was adopted in view of the complexity that the conventional argumentative types have assumed to most of the students through the documents and guidelines of education, what makes a lot of students be unsuccessful in the production of this gender. Therefore, the purpose is to expose this alternative practice of argumentative text production in the classroom, used as an ―unlock‖ activity of argumentation, aiming to comprehend its operation and effectiveness, presenting the characteristics of the type ―paper MSN‖ and justifying the reason it configures as that; besides, we will analyze it as an activity responsible/responsive and investigate the presence of that kind of argumentation. It is important to point out that the aim of this paper is to evaluate the language operation, of the argumentation, and not to describe a methodological proposal of the work with the gender, although the paper pervades through that question. The text produced by the students will be analyzed taking into consideration two perspectives: the concept of responsiveness/responsibility of Bakhtin and other aspects which are attached, and the theory of argumentation studied by Selma Leitão, who possesses a perspective cognitive- psychological. We will consider that both the approaches are relevant to the treatment of the gender analyzed, one because it treats the language operation, and the other because it works more specifically with the argumentation, treating as well questions related to the education. As from the analysis realized, we can conclude that the gender enables the students to comprehend the operation of the argumentation; even when they assume, in large scale, the speech of others, of adults, that does not mean that they are omitting themselves, on the contrary, they choose a position to defend. There is a responsible activity there, although the communicative relations will occur in reason of the other, our acts are of entire responsibility, because they are unique and unrepeatable. We understand, as well, that the texts will grow, create a body, always complementing the enunciation produced by the interlocutors; in different moments of the texts analyzed, the idea of an interlocutor is retaken and complemented by the other, what reaffirms the dialogism, the responsiveness. Concerning to the argumentation, in accordance with the theory studied by Leitão, this one occurred in the texts, that means, the format of the gender permitted it to be developed.
A palavra do outro ouvida e respondida: uma compreensão enunciativa sobre a atividade de recontar histórias nas séries iniciais
(Universidade Federal de São Carlos, 2014-03-25)
Cardili, Wuendy Fernanda
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Brito, Maria Isabel de Moura
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https://lattes.cnpq.br/3337123452909799
On the assumption that a text is the guiding object for both teaching and learning, according to words by Geraldi (2003; 2010), the aim of this study is the analysis of written stories retold by students who are in process to become literate and focuses on how a otherness word becomes their own word in written production. Based on enunciative studies of language and on Bakhtin, it is assumed the idea of language as an interactive process and the constitution of the subject. The literacy is comprehended as a discursive process. Thus, the written language acquisition is considered from the relationship between subjects with, about and of the language. The corpus which permitted such analysis is formed by twenty four texts of middle school students from 2nd grade, written in 2010, based on the story Menina bonita do laço de fita by Ana Maria Machado. The genre retelling constitutes of an activity of retelling and happens to be from the perspective of counter-word of somebody else s discourse, in which the students written productions are the answer to somebody else s discourse.The paradigm of evidence, developed by Ginzburg (1986), is the methodological approach used to analyze the written productions and allows the comprehension of the singularity evidences related to written process. The association between the paradigm of evidence and the studies related to written acquisition allows the comprehension of the subject s dialogical relation processes and language. It was intended to develop a reflexive look at texts from the appropriation of the Otherness word. When in contact with other words, the subjects create their own words and by doing so build up meanings for the story. This creation process about language proves that retelling is not a reproduction, but the production of the new. The author s appropriation of words is assimilated to the subjects own words, in the new retold story, whose meeting the word, results in the production of a new text, a new, single and not-repeated enounced in enunciation chain. The retelling presupposes evaluation, comprehension and active and responsive activity in relation to somebody else s discourse. Thus, the dialogic relationship between some enounced, achieved through the activity of retelling reveals itself as an important strategy to produce meanings, in which the retelling allows a (re) signification of written work in school settings.
Saberes docentes: vozes de professores da infância sobre a educação matemática para crianças
(Universidade Federal de São Carlos, 2014-03-25)
Rocha, Maria José da Silva
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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/2658820524027100
The project objectives are to investigate the knowledge of three teachers from kindergarten, while in training in the context of Curriculum Activity of Integration, Education and Research (ACIEPE), Ludic Science for Kids: assumptions, activities and experiences . This activity was one of three actions that formed part of the Disclosure Project scientific playful Science for Kids: Workshops and outreach activities for Science, Mathematics and Technology for children from 3 to 6 years . This is a qualitative research and a Case Study, in which video recordings compose the methods of analysis and data collecting from an extension kindergarten teachers education course. It was conducted by the following question: What is the knowledge manifested by teachers from kindergarten, in the context of ACIEPE, for mathematical experiences of children aged three to six years, based on the cultural-historical perspective? The categories of knowledge developed by Tardif (2008) are the foundations of the analysis. Results indicate that in the context of continuing education teachers oral narratives are permeated by individual and collective knowledge that intertwine all the time, among them personal, those from school education prior to training for teaching as well as those from programs and textbooks. All of these different kinds of knowledge integrate knowledge of experience.
O êxodo cantado: a formação do caipira para a modernidade
(Universidade Federal de São Carlos, 2014-03-25)
Faustino, Jean Carlo
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Pellegrini, Tânia
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https://lattes.cnpq.br/0280434883580627
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https://lattes.cnpq.br/9464988436162691
This thesis is dedicated to the understanding of the rural exodus in Brazil, from the analysis of modas de viola recorded by the duo Tião Carreiro and Pardinho throughout their career which corresponds to the decades in which happened the great demographic change that turned Brazil predominantly into an urban nation. The analysis is concentrated on the themes that reveal the encounter the Brazilian country culture with the modernity and the consequent endeavor of building the conciliation between the modernity and tradition, which it is trying to put itself into the new social and economic context incorporating new values and at the same time trying to preserve the essence of the Brazilian country cultural identity. From this effort, calls our attention on the lyrics, will arise, from one side, a meaning of the historical continuity resulting from the analogy between the challenges of the present and the past, on the other hand, an undisputed feeling of waste. Waste of material and immaterial goods that the narratives picture like a big epic movement of one people under formation trying to live in a new kind of society.
Produção de hidrogênio em reator anaeróbio de leito fluidizado a partir de glicerol bruto sob condições termofílicas
(Universidade Federal de São Carlos, 2014-03-25)
Ferreira, Janaína dos Santos
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Silva, Edson Luiz
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https://lattes.cnpq.br/2133864300816072
This study aimed to evaluate the influence of the hydraulic retention time (HRT) on hydrogen production using crude glycerol as a substrate in an anaerobic fluidized bed reactor (AFBR ) . The reactor had a volume of 1979 cm3, which was varied HDT in eight stages: Stage I, II, III, IV, V, VI , VII, VIII with HDT of 14, 12 , 10,8 , 6, 4 , 2 and 1 hour. The temperature was controlled at 55 °C, fixing the substrate concentration in the amount of 5 gL -1 . The inoculum used was granular sludge from the thermophilic anaerobic reactor and upflow sludge blanket ( UASB ) for the treatment of vinasse, located at Usina São Martinho , Pradópolis - SP . The results showed that the yield of hydrogen (HY) remained constant between the HDT of 2h to 14h (1.2 H2.mol glycerol and 1.4 mol -1) HRT of 1h and the yield was higher ( 3 moles H2 . glycerol mol -1). The volumetric H2 production was increased with decreasing HRT , with its maximum value of 1508.7 mL.h - 1.L - 1 in lower applied TDH (1h) . The biogas produced was composed of CO2 and H2. The composition varied with the decrease in HRT from 14 to 2h (Step IVII ) in the first seven stages (14 to 2 h ), reaching a mean rate between 50 and 60%. In the last phase, which HRT was 1h , the percentage of H2 biogas reached the maximum value of 70 % . The major metabolites obtained during the first seven stages of operation of the reactor were: Acetic acid (4.5 to 18%), butyric acid (4.3 to 21% ), ethanol (14 to 29%) and 1,3-propanediol (34 to 50%). As for 1h note the HDT of the presence of propionic acid (56%), acetic acid ( 11.5%) and 1,3- propanediol ( 30%).
Indicadores de sustentabilidade no contexto da Política Nacional de Resíduos Sólidos: uma proposta para Bragança Paulista-SP
(Universidade Federal de São Carlos, 2014-03-25)
Camargo, Isadora Vilela de
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Teixeira, Bernardo Arantes do Nascimento
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https://lattes.cnpq.br/1166854416745527
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https://lattes.cnpq.br/6516570337538739
Urban Solid Waste (USW) management represents an increasing challenge to municipal administration departments due to the growth in quantity of waste and complexity of its management. In Brazil, the National Solid Waste Policy (NSWP), approved in 2010, came to be a reference to local public policies, incorporating a concern with sustainability. Some authors have been proposing sustainability indicators (SI) to USW management since this sector needs tools to help with decision-making actions as well as with democratization of information to the society. However, these works neither consider the definitive content of NSWP, nor the strategic involvement of municipal councils related to the topic. This is important to assess how the conditions of these sustainability indicators match with the sustainability conditions brought by the policy. The aim of this present work was a proposition of a sustainability indicators set for solid waste management in Bragança Paulista-SP by means of consultation to the Municipal Environment Defense Council COMDEMA in the context of the NSWP. The research was based on interfaces assessment of three sets of SI for Solid Waste Management found in the literature with the NSWP. In order to facilitate this process, indicators were grouped in 15 topics, being detected their contribution and restrictions. This assessment, set on local context and researchers perceptions resulted in a proposal of a group of 25 SI which went through COMDEMA s consultation regarding relevance and form. On a second stage, new SI were developed, based on topics identified in the NSWP and were also consulted by the mentioned council. It was possible to ascertain that the NSWP incorporates dimensions of sustainability and many of its aspects are represented in the SI studied. This fact enforces the usefulness of this tool to a more sustainable solid waste management in local level. Nevertheless, to some recent topics such as reverse logistics, shared responsibility, Urban Solid Waste intermunicipal consortiums and recovery of organic solid waste, there were developed new indicators in order to get a more complete management. The final set resulted in 30 SI which meet the five dimensions of sustainability (environmental, social, economic, cultural and political) and include significant aspects of the NSWP as well as characteristic questions of the city. The involvement of COMDEMA, by its composition, engagement and interest, contributed to the access of information and members discussions, resulting in adjustments of the initial set, which include local demands. The experience of consultation adopted in this work, in order to propose SI to the SW management, can support future research, and may be adapted to the reality of other cities. The final SI set, which may come to be totally or partially incorporated to the Municipal Solid Waste Plan, can collaborate with execution of the NSWP in the city, leading it to a more democratic and sustainable management.
O salto do cinema brasileiro contemporâneo no céu do sertão: uma análise dos filmes O Céu de Suely e Viajo porque preciso, volto porque te amo
(Universidade Federal de São Carlos, 2014-03-25)
Santos, Márcia Vanessa Malcher dos
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Pellegrini, Tânia
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https://lattes.cnpq.br/0280434883580627
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https://lattes.cnpq.br/6004376537871160
The purpose of this research is to think about the representation of the sertão in contemporary Brazilian cinema , from the analysis of two recent films, O Céu de Suely (Karim Aïnouz, 2006) and Viajo porque preciso, volto porque te amo (Karim Aïnouz; Marcelo Gomes, 2010). To this end , we seek to understand the social implications of the sertão‟s denser moments in the national cinema, establishing a fundamental and necessary link between the present and the past. Furthermore, we investigated the relationship between cinema, state and market in the country in order to define the basis of current production and situate the place occupied by cinema from the Northeast in Cultural Industry, which comprises the filmmakers Karim Aïnouz and Marcelo Gomes . Finally, we turn to the chronotope concept of Mikhail Bakhtin, as analytical axis , to think about the dislocate‟s poetics, the remarkable presence of the road and nomadic individuals in the films analyzed. The aim is to map, dialectically, the forms of time and space in the narratives of O Céu de Suely and Viajo porque preciso, volto porque te amo and in the postmodern sociality of which they are part.
Competências do professor de Português Língua Estrangeira (PLE) em formação : (re)construção e reflexão
(Universidade Federal de São Carlos, 2014-03-26)
Negri, Marcia Fanti
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Viana, Nelson
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https://lattes.cnpq.br/6252579012192711
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https://lattes.cnpq.br/0126666263989130
This research aims to analyze the performance of teachers (in the process of education) of Portuguese as a foreign language, based on a range of theoretical models of competence. Therefore, a brief summary of the term competence was outlined, starting with the concept of communicative competence and their approaches related to foreign language teachers. This research is based upon theories of competence, communicative competence and competence for foreign language teachers. It includes the following authors teachers: Chomsky (1960), Hymes (1972), Savignon (1972), Widdowson (1978), Canale e Swain (1980), Canale (1983), Bachman (1990), Celce-Murcia et al (1995), as well as Perrenoud (1999), Basso (2001) and Almeida Filho (1993 e 1999). In order to collect data, the following instruments/procedures were used in this investigation: an initial questionnaire which aimed to obtain the teachers’ profile; audio recorded lessons; field notes and a final questionnaire. Afterwards, some criteria were established to analyze the data. Some excerpts of the recorded lessons were selected due to the fact that they show evidence of some competences. Based upon Almeida Filho (1993 e 1999) it is considered that the competences of foreign language teachers can be reconstructed through reflection upon their performance. With this work we aim to contribute to the process of reflection in teacher education in the field of foreign languages, as well as, to the literature regarding foreign language teaching and learning process and, more specifically, to the area of Portuguese as a Foreign Language teaching.
O carnaval de Antares: fantástico e carnavalização literária em Incidente em Antares
(Universidade Federal de São Carlos, 2014-03-26)
Silva, Valeria Cristina da
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Pellegrini, Tânia
;
https://lattes.cnpq.br/0280434883580627
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https://lattes.cnpq.br/2580476743625445
In extremely turbulent period corresponding to the decades of 1960-1970 in Brazil, literature has found curious ways. The authors of that period, trying to express the disjunction of Brazilian society, due to the military dictatorship, and aware of the inability to represent the world as a whole, found in the fragmentation of narrative and the use of other narrative resources - as cinema, advertising etc - an esthetic answer for such complex moment. In this scenario, however, stands the figure of Erico Verissimo, who chooses different ways. Respecting his own conception of literature, the author constructed a work averse to these esthetic renovations. Based on the pillars of "realism" Incidente em Antares innovates by introducing the supernatural element, well know by Todorov as "fantastic". Based on some studies related to fantastic literature and the historical moment, in which Incident em Antares was produced, our work has two specific objectives: first of all, to reveal how the fantastic element is articulated in the novel; secondly, to demonstrate how this fantastic element acquires specific characteristics, allowing the emergence of what Mikhail Bakhtin called literary carnivalization. Our main hypothesis is that the literary carnavalization in Incidente em Antares is responsible for its critical feature.
Caracterização morfológica e molecular de Campoletis Foerster, 1869 (Hymenoptera, Ichneumonidae, Campopleginae), parasitoides de Spodoptera frugiperda (Smith, 1797) (Lepidoptera, Noctuidae)
(Universidade Federal de São Carlos, 2014-03-26)
Camargo, Luiza Figueiredo
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Dias, Angélica Maria Penteado Martins
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https://lattes.cnpq.br/8637344058859147
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https://lattes.cnpq.br/7659288914273973
The fall armyworm Spodoptera frugiperda (SMITH, 1797) is a voracious pest of numerous crops of economic importance throughout the New World. In Brazil, their larvae can be attacked by several species of parasitic wasps, which are candidate to biological control agents against this pest. Surveying the parasitoid fauna on S. frugiperda in maize throughout Brazil two very morphological similar species of Campoletis are found. To ensure the efficiency of the biological control works, the knowledge about the taxonomy of the species related is necessary. Campoletis specimens emerged from Spodoptera frugiperda were studied mofologically and molecularly, in order to solve taxonomic problems among C. sonorensis (CAMERON, 1886) and C. flavicincta (ASHMEAD,1890). The samples came from three regions of Brazil: Santa Maria, RS; Ribeirão Preto, SP; Sete Lagoas, MG. Pictures from the type material of the two species were studied, besides the original descriptions of them. A possible sinonimy is indicated between the both species, for which the name C. sonorensis will be used based on the priority law for species names. A redescription is made to Campoletis sonorensis from Brazil, using morphological characters and DNA Barcoding.
Estudo da variação do perfil químico de citros com HLB e sadios, buscando informações sobre mecanismo de defesa
(Universidade Federal de São Carlos, 2014-03-26)
Bellete, Barbara Sayuri
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Silva, Maria Fátima das Graças Fernandes da
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https://lattes.cnpq.br/0457632122660653
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https://lattes.cnpq.br/5893633998701597
This paper describes the variation of the chemical profile study of citros after inoculation of the bacterium "Candidatus Liberibacter asiaticus", responsible for Huanglongbing (ex greening), one of the most serious diseases causing several losses in the Brazilian citrus industry. The bacterium "Ca. Liberibacter " was inoculated in seedlings of the" Valencia "(Citrus sinensis (L.) Osbeck) grafted on "Swingle" (Poncirus trifoliata x Citrus paradisi) and was evaluated the change of secondary metabolites by the development of analytical methods such as HPLC-UV, LC-MS/MS, LC-UVSPE- NMR and chemometric tools. The chemometric methods PCA and S-PLOT applied to data obtained in the studies by LC-MSE allowed to discriminate infected plants from healthy plants, and also allowed the characterization of the compounds that most contribute to this differentiation. By analyzing the change in the chemical profile of citrus studied by HPLC-UV-SPE-NMR, it was able to detect the change of some coumarins in the roots and stem from rootstock, and glycosides flavonoid in leaves, indicating that these compounds may be involved in defense mechanism of the plant, and may be acting as a Phytoanticipins. Aiming to better interpret this change observed, also performed a quantitative variation of some secondary metabolites, as coumarin identified in the roots, and flavonoids identified in leaves. This technique showed an increase of coumarins in infected plants, while there was a decrease in all the flavonoids in the leaves in infected treatment, indicating that the plant defense is in the roots. Finally, a phytochemical study of citrus was performed aiming obtain patterns compounds, and this study resulted in the isolation of 13 substances, from several classes of secondary metabolites.
Participação social e estratégia saúde da família : desvelando fragilidades e possibilidades
(Universidade Federal de São Carlos, 2014-03-26)
Furlanetto, Camila Fressatti
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Ogata, Márcia Niituma
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https://lattes.cnpq.br/3274294833403570
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Machado, Maria Lúcia Teixeira
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https://lattes.cnpq.br/5703683100332513
The participation and the social control are guiding principles of SUS and for democratization of the system. The health acting and services management should express joint definitions between the government and population. The 8.142/1990 Law establishes as instances for participation and social control in the Health the counsels and the conferences. The Family Health Strategy (FHS) could be considered an easier locus of the materialization of the social participation because of the link possibility with the user population. Considering this hypothesis, the research sought to analyze the users and Health worker’s perceptions of the Family for the social participation, seeking for the social effective control in health. It was held with workers and users of two Family Health Units in the São Carlos county, from the qualitative analysis, up with the application of semi structured interviews and thematic analysis, whose origins three categories(i) challenges for the effectiveness of the social participation in the FHS; (ii) participation spaces or just completion of formalities?; (iii) FHS: potentiality for social participation. The results of this study allowed unveiling various fragilities that figures as challenges for the social participation in the researching field, such as: lack of information/comprehension, exposition and power relations and welfares/accommodation. The institutionalized spaces for the participation and social control addressed in this study were the Municipal Health Conferences and the locals Management Councils, the effectiveness of them were analyzed negatively due lack of support and government participation. The research allowed unveiling also potentials as the counsels’ effort and the capacity spaces done between the team and the users members of the Management Councils in the Family Heath Units. Lastly, the participants perception strengthens the challenge that is the social participation in the SUS. As contribution, the needing pointing of more investment and attention to this spaces from the recognition of their potentialities.
Catalisadores à base de Cu, Zn, Al e Ce aplicados à reação deslocamento gás-água
(Universidade Federal de São Carlos, 2014-03-26)
Borges, Laís Reis
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Assaf, José Mansur
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https://lattes.cnpq.br/9563312407691130
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https://lattes.cnpq.br/9219091363286049
The water gas-shift reaction (WGS) is an important step in the production process and purification of H2 from hydrocarbon. Commercially, to overcome the thermodynamic and kinetic limitations, this reaction occurs in two steps, one at higher temperature (450º C to 320ºC) and another step at lower temperature (190º C to 250ºC). The catalyst Cu/ZnO/Al2O3 is used industrially for water gas-shift reaction at low temperature in the chemical and petrochemical industry. Although widely used, are disagreements about the role of each metal in the catalyst, the role of Zn and Al as promoter or stabilizer is not clear and controversies about the influence of some parameters in the activity. This study verified the activity of the catalyst Cu/ZnO/Al2O3 in water gas-shift reaction in the range of temperature, 150ºC to 350ºC, and the feed molar ratio of CO: H2 equal to 1:5. The catalysts were prepared by co-precipitation method, and the effects of content of Al, ratio Cu/Zn and the CeO2 addition was investigated. There was a synergistic effect between the metals Cu-Zn-Al at a ratio (6:3:1), which led to a larger surface area of Cu metallic, and a higher activity compared to the catalysts bimetallics: CuAl (6:1) and CuZn (6:1). By adding Ce to the tri-metallic compound a greater activity was observed at higher temperature than 250ºC, caused by the activation of the effect of oxygen storage characteristic of cerium oxide, however it has been a reduction on stability. The quantity of Al influenced the precursor structure whith formation of rosasita and malachite with low levels of Al, and hydrotalcite structure was observed when the Al content was higher than 11.4% (mass concentration). A great quantity of Al (16% (mass concentration)) was found among the hydrotalcite catalysts, which led to a higher conversion of CO and higher crystallinity, however this activity is almost the same of the catalyst derived from the structures malachite and rosasita (CuZnAl/6:3:1) at high temperature. The catalyst whith Cu/Zn=2 presented higher activity at temperatures below 250ºC, probably due to the higher metallic area, while at high temperature, catalysts with high ratios of Cu/Zn achieved higher conversions. Therefore, this study verifies that TOF (turn over frequency) isn t directly related with surface area of Cu0, the crystallinity and quantity of Cu are factors that influenced the activity of the WGS reaction.
Integração e segurança na Amazônia transnacional
(Universidade Federal de São Carlos, 2014-03-26)
Correa, Paulo Gustavo Pellegrino
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Martins Filho, João Roberto
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https://lattes.cnpq.br/4935704081469903
This study aims to understand the dynamics of integration and security in the transnational Amazon and its importance to South America and also it analyzes the role of Brazil as the largest amazon country in the binomial integration/ security in the region . The theoretical approach adopted by this research is called the " Copenhagen School " which is based on three analytical pillars : the concept of securitization and desecuritização , multisectoral approach to security and the concept of regional security complexes . Our time frame is concentrated between 2000 - the date of the first summit of South American countries where major integration initiatives have been launched - and 2013 , the year of completion of our research . Since the Amazon region covers more than 50 % of the South American subcontinent and involves nine countries , it is possible to identify axes of countries that comprise different dynamics in the binomial integration / security. Considering the importance of this dynamic to Brazil , we will highlight our work on two axes within the transnational Amazon : Peru - Brazil - Bolivia and the Guiana Plateau axis. The first stands out for having an integration process that brings Brazil to the Pacific and presents a specific secutity constellation within the transnational Amazon . The second represents the path of integration between Brazil and northern of the subcontinent and the Caribbean and also demonstrates a specific regional security dynamics in Amazon region.
Estratégia competitiva e estratégia de produção: estudos de caso na produção de embalagens obtidas a partir de polietileno proveniente de fontes sucroalcooleiras
(Universidade Federal de São Carlos, 2014-03-27)
Motta, Gabriela Azevedo
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Alves Filho, Alceu Gomes
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https://lattes.cnpq.br/7885557554922569
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https://lattes.cnpq.br/7250712374641353
In the search for new positions in the market, many companies have sought to differentiate their products and services, possibly reformulating their strategies. One of the possible strategies for modification is related to sustainability of the materials used in products and processes, such as plastic from sugarcane sources. The objective of this work is tried to identify the competitive strategies and manufacturing strategies adopted by companies that use plastic from sugarcane in package. To achieve this objective was opted for conducting case studies of two companies leader in their segments: a producer for the staffing industry, perfumery and cosmetics and other packaging supplier to the food industry. The first company competes with a focus on differentiation in only one segment, and its manufacturing strategy of horizontal integration of its packaging. The second company adopts a competitive strategy of differentiation in the context of the industry, and a manufacturing strategy of vertical integration of its products.