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  1. Home
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Browsing by Issue Date, starting with "2009-09-14"

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    Movimentos sociais, reforma agrária e escolaridade: o caso dos alunos do projeto Ceta na Bahia
    (Universidade Federal de São Carlos, 2009-09-14)
    Daltro, Renato Ribeiro
    ;
    Ferreira Junior, Amarilio
    ;
    https://lattes.cnpq.br/0748545841167046
    ;
    https://lattes.cnpq.br/0602637561799016
    This study analyzes the educational trajectory of six students which are matriculated in the Professional Secondary Grade School and in the University Course offered by National Program of Agrarian Reform (Pronera), associated with the Movimento dos Trabalhadores Rurais Assentados, Acampados e Quilombolas (Ceta) and the University of State of Bahia (Uneb). The purpose of this research was to identify what dispositions were assimilated by the students and, consequently, to analyze the relations among their attitude and the earned knowledge and their compromise with Ceta of returning to the camps. The analysis of scholar trajectory is founded on interviews with the students matriculated in the courses of Sustainable Agriculture and Land Pedagogy. The interviews were distributed in groups according to social and economic reality of the students families and then analyzed. In the first moment it was obtained information about the Agrarian Reform on Brazil and the identification of Ceta s Movement on the Regional do Médio São Francisco, where the interviewed students live. The research describes this student s scholar trajectory from the beginning of education process, when they were taught to read and write, to the end of Middle School and the University Study and their expectation about the future. This research is based on the studies of Pierre Bourdieu and his coworkers, who explained the mechanism of strategies of social and cultural reproduction in some social structures, where groups or social classes fight against each other for cultural capital in order to grant reproduction and survival for their progeny or social group. Other studies in the same direction affirm that in situations where the economic conditions are unfavorable to education process, other aspects, mainly the non-scholar aspects, can be identified as successful if it is considered the social environment, the familiar mobilization and the kind of social and scholar trajectory, among other factors. Consequently it was examined this students trajectory, based on their testimonials, analyzing their families cultural capital, social capital and economic capital, their cultivated habitus in the inner of families, their relationship with the Ceta s Movement, the restructuring of their practices and cultural patrimony along the course. The main purpose of this study could be summarized as describing the scholar trajectory of six students, who were raised on popular sectors of open country, who are living a reality replete of subjective expectations of scholar success, in spite of objective possibilities of interruptions and of been repentant in school. Besides, there is a conflict in the inner of mobilization of social movements, where it is fought for ascending or descending positions on the exigency and collective efforts to the access to resources of Agrarian Reform, especially from National Program of Agrarian Reform (Pronera), for a gratuitous and great quality public open country education.
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    Desempenho de um precipitador eletrostático operando na remoção de nanopartículas de aerossóis
    (Universidade Federal de São Carlos, 2009-09-16)
    Meira, Camila Roberta de
    ;
    Coury, José Renato
    ;
    https://lattes.cnpq.br/2006424209258303
    The removal of ultrafine particles is becoming an increasingly important operation due to the occupational problems caused to the environment and to the human health, such as inhalation of particulate matter, as well as by its applications in industrial processes. Among the equipments commonly employed for the removal of particulates from aerosols, the electrostatic precipitator (ESP) is the one capable to remove particles in a large size range with high efficiencies and can be used in the recovery of products of high aggregated value. The aim of this work was to evaluate the influence of operational parameters in the collection efficiency of a plate-wire electrostatic precipitator operating in the removal of nano-sized particles. The experimental system simulated a contamination by polydispersed nanoparticles ranging from 6 to 245 nm in an extra pure air stream. The efficiency for nano-sized particles was obtained by counting of particles before and after the electrostatic precipitator, using an electrical mobility analyzer. This procedure was performed varying the potential is applied to the discharge electrodes. The results shows the ESP presented a high efficiency of removal for nanoparticles of aerosol, where efficiencies larger than 99% were obtained for all velocities studieds (1 to 10 cm/s, with intervals of 1 in 1 cm/s) for electric field from 4 to 5.5 kV/cm. The efficiency increased with the decrease of the diameter particles up to approximately 20 nm, probably due to the higher electrical mobility of smaller particles. For diameters below 20 nm there was a drop in collection efficiency, which may have been caused by the low particles charging. The classical Deutsch-Anderson model didn t adjustment to the experimental data, the theoretical efficiency overestimated the experimental efficiency.
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    Uma nova abordagem na utilização de ferramentas computacionais no ensino de conteúdos da disciplina estruturas de concreto em cursos de Engenharia Civil
    (Universidade Federal de São Carlos, 2009-09-17)
    Faria, Antonio de
    ;
    Carvalho, Roberto Chust
    ;
    https://lattes.cnpq.br/3633394168236221
    ;
    https://lattes.cnpq.br/7589471725933484
    This presentation analyzes the two computational tools, GPLAN (Plan Grills) and FTOOL (Two-Dimensional Frame Analysis Tool), and how they can be used in the content of "Concrete Structures" discipline, in Civil Engineering Graduation. The considered study is divided in two topics, being the first, the plan grills consideration (interaction plate/ beam) in the analysis of buildings floors to determine efforts and displacement, in comparison with the traditional teaching that considerate the elements in a isolated form, with the beams study through the theory of plates. The second topic refers to the porch plan consideration (interaction beam / pillar) for the lateral wind action consideration on buildings structures, and its efforts and displacements in order to analyze the instability parameter and the increase coefficient of the vertical actions z, provided by NBR 6118:2003. Thus, this study presents, in a didactic form, how the using of such tools can contribute to a civil engineer graduation regarding concrete structures, indicating through some examples, a variety of details and concepts that can be obtained through these tools. Finally, it is shown also that, to conduct checks according to the recent regulatory requirements, makes essential the use of computational tools, instead of manual methods.
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    Aspectos interculturais no ensino de espanhol em contato com o português em canções em livros didáticos
    (Universidade Federal de São Carlos, 2009-09-17)
    Schinelo, Lucimeiri Maria
    ;
    Barbosa, Lúcia Maria de Assunção
    ;
    https://lattes.cnpq.br/5030878430187815
    ;
    https://lattes.cnpq.br/7207530660219707
    Historically, foreign language teaching in Brazil has been connected to linguistic politics that may determine pedagogical practices and teaching production. In spite of the existence of PCNS (National curriculum parameters) - which take holistic learning as a value and develop a communicative approach social cultural component, intercultural focuses and linguistic pluralism may occupy accessory (supplementary) position in curriculum gratings and also in foreign language classes throughout the country. We propose, in this research, to observe the way the view of teaching permeated different historical moments and influenced the treatment of cultural questions in activities that involve songs presented in four didactic books Spanish as a foreign language designated by MEC. We consider that such songs are a study source that will contribute to appreciate historical and cultural aspects in Spanish classes. Thus, we highlight the importance of promoting a closer approach to Latin America as a way to recognize us as liable to our own history. We search for theoretical backboard in communicative approach conceptions, culture and intercultural definitions and their implications in language teaching. We believe that contemporary foreign language learning from the texts contextualization and reflection made a new view on culture and language possible. We can verify it by the way that some Latin America historical, cultural and linguistic manifestations appear explicit or implicit on the selected song lyrics. Such a study propitiates a reflection on intercultural theme. It also contributes to the teaching and learning process (Portuguese and Spanish) and created ways to a critic and conscious learner education.
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    Potencialidades e dilemas da participação de agricultores familiares em uma metodologia de experimentação participativa para o desenvolvimento rural sustentável: um estudo de caso
    (Universidade Federal de São Carlos, 2009-09-18)
    Guyot, Marina Souza Dias
    ;
    Borges, Janice Rodrigues Placeres
    ;
    https://lattes.cnpq.br/2373278362705384
    ;
    https://lattes.cnpq.br/1717373612505158
    In order to surpass the challenges of the Sustainable Agricultural Development initiatives where the popular participation is recognized as vital have been undertaken. However, the effectiveness of this participation varies and this changeability is related, among other factors, to the used methodologies. The objective of this research was to describe and to analyze the potentialities and quandaries of the participation of familiar farmers in the .Sustainable Agricultural Development. The participatory experimentation methodology applied is the one proposed by the project Experimentation in Agrossilviculture and Social Participation developed in the City of Joanópolis/SP. The research was carried through semi structured interviews with participant this project s farmers as well as through participant observation. The data have been systemized through re-readings, reductions and establishments of standards. Then, the data analysis was held on through the dialogue between the collected information and consulted bibliography. It was observed that the potentialities of the participation of familiar agriculturists in the Sustainable Agricultural Development are related to the search for better conditions of life. The identified quandaries allude to the lack of participation exercise both by the institutions that act with these farmers, as for themselves. It was identified that the methodology of participatory experimentation favors the participation of the family farmers in the Sustainable Agricultural Development, once it places them in the position of crucial agents of the process.
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    Consultoria colaborativa na escola : contribuições da Psicologia para inclusão escolar do aluno surdo
    (Universidade Federal de São Carlos, 2009-09-18)
    Pereira, Veronica Aparecida
    ;
    Mendes, Enicéia Gonçalves
    ;
    https://lattes.cnpq.br/2745694553486611
    This study aimed to investigate the psychological procedures in the school environment which may favor the inclusion with the aid of the collaborative consultation. A total of six teachers from regular classes of the first initial years of the Elementary School, 3 of them were hired from the school and 3 were substituting. The teachers authorized the observation of their classes twice a month and also authorized the consultation procedures every other week. There were deaf students in the three classrooms, a total of six students (G1). The consultant asked the teachers to indicate other six students who presented socially accepted behavior (G2) and other six students who presented some behavioral problems (G3); all of them were identified by the employment of two behavioral scales, answered by the teachers. In order to evaluate the school performance, the hearing students and the deaf ones took part in a school performance test. Both, the behavioral scales and the school performance test were reemployed at the end of the school year. From May to December 2006, the consultant realized every 15 days, systematic observation of the classes, in the three classrooms, making observations on the diary. The registered content was discussed on the following week with each teacher, for evaluation and practices planning. At the end of the process, the consulting activity was evaluated as a possibility of baseline, either for the consultant as for the teachers in charge. The behavioral scales enabled the discrimination of socially accepted behavior and orientation for behavioral procedures which have contributed for the enhancement of opportunities. The evaluation of the scholar performance presented a correlation between behavioral problems and learning difficulties, besides indicating that actual procedures have contributed for teaching math to deaf students, but it was not assured yet, at least in that school, the alphabetization, which is an essential requirement for accessibility to the academic knowledge.
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    O político tornado em derrisão no gênero discursivo charge
    (Universidade Federal de São Carlos, 2009-09-19)
    Aguiar, Gisele Freitas de
    ;
    Baronas, Roberto Leiser
    ;
    https://lattes.cnpq.br/4613001301744682
    ;
    https://lattes.cnpq.br/9095440519377957
    In this master‟s research, we analyze discursively as Brazilian political be made in derision in the print media. Based on theoretical and methodological assumptions of discourse analysis of French orientation, we work more specifically with the genre charge. This charge is conveyed by the newspaper Folha de S. Paulo during the last three presidential terms (1998, 2002 and 2006) and gave the circular images derisions the then president Fernando Henrique Cardoso and the actual president Luis Inácio Lula da Silva. Methodologically working in the beat description and interpretation (Pêcheux, 1993), showing how the historical events that FHC and Lula were protagonists and were transformed by the media print into events derision discursive. This is an important work because it contributes to a more refined understanding of the role of genre charge in our society.
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    Efeitos de uma desintegrina recombinante de Bothrops alternatus, DISBA-01, em células precursoras miogênicas (CPM)
    (Universidade Federal de São Carlos, 2009-09-21)
    Pedretti, Ana Carolina Elias
    ;
    Araújo, Heloísa Sobreiro Selistre de
    ;
    https://lattes.cnpq.br/4065824911933203
    ;
    https://lattes.cnpq.br/1547297106502078
    Disintegrins are toxins commonly found in snake venoms whose biological effects occour upon interaction with surface receptors known as integrins. DisBa-01, an RGD disintegrin isolated from a cDNA library made with mRNAs from the venom gland of Bothrops alternatus, bears anti-metastatic, anti-angiogenic and anti-thrombotic activity in nude mice, partially mediated by interaction with integrin _v_3. Studies with Wistar rats also show that protein has angiogenic activity during regeneration after surgery. The objectives of this study were to evaluate the effects of DisBa-01 on adhesion, deadhesion and proliferation of C2C12 myoblasts and evaluate the electrophoretic profile of secreted proteins of DisBa-01-treated cells. Myoblasts (103 cells/well) were incubated with five concentrations of DisBa-01 under different incubation times and adhesion substracts (plastic, collagen type I or fibronectin). The supernatant was collected for 2DE analysis and the cells were quantified. Also, flow cytometry was used to evaluate the expression of integrins (_2, _4, _5, _v, _v_3, _1 and _4). DisBa-01 inhibited adhesion to fibronectin in high concentration (1000nM) and to collagen type I in all tested concentrations, but did not detach cells from collagen or fibronectina matrix nor affected myoblast proliferation. Flow cytometry showed that integrins _v and _1 were present. 2DE analysis points to an increase of secreted proteins, mainly in higher DisBa- 01 concentration (1000nM). In conclusion, C2C12 myoblasts are sensitive to DisBa-01, suggesting this protein initiates a sinalization cascade mediated by integrins, which modifies protein expression and secretion.
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    Diretrizes para seleção de projetistas e avaliação da prestação do serviço de projeto de edificações na visão do contratante
    (Universidade Federal de São Carlos, 2009-09-23)
    Paula, Nathália de
    ;
    Novaes, Celso Carlos
    ;
    https://lattes.cnpq.br/7340467051481570
    ;
    https://lattes.cnpq.br/3199008972624389
    The design-product has great importance in Construction, Engineering and Architecture area, as much for its enterprise success strategic function, as for becoming possible the building materialization. Evaluating the quality of the design service rendering (DSR) can denote improvements in the design-product quality and, therefore, in the final product (building). Questions or systemized quality criteria related to DSR quality, with comments, degrees or grades/weights attribution, elaborated from the contractors of these services can allow the DSR evaluation, making possible the designer selection and the performance evaluation of contracted designers. The aim of this work is to propose a set of direction guidelines to designers selection and DSR evaluation in the contractor view. The literature review and case studies were carried out in four construction and incorporation companies and three design companies from São Paulo city. The results show that the constructors and incorporators have practices for selection and evaluation of designers. Two design companies have practices to evaluation of the contractor client satisfaction. In essence, the types of evaluation mentioned designers evaluation and evaluation of the contractor client satisfaction have the same aim: evaluating the DSR. The observation of these practices and the literature review contributed for the elaboration of guidelines to the designers selection and the evaluation of the design service rendering.
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    Sensibilização cruzada entre anfetamina e nicotina: avaliação neuroquímica do núcleo acumbens e córtex préfrontal em ratos adolescentes e adultos
    (Universidade Federal de São Carlos, 2009-09-24)
    Carneiro de Oliveira, Paulo Eduardo
    ;
    Planeta, Cleopatra da Silva
    ;
    https://lattes.cnpq.br/2514762545280942
    ;
    https://lattes.cnpq.br/9776309560034777
    Nicotine and psychostimulants are often abused in combination. Drug abuse often begins during adolescence. Exposure to drugs of abuse during adolescence can have long-term consequences. We have previously demonstrated that adolescent rats pretreated with amphetamine displayed behavioral sensitization to nicotine, which persisted until adulthood. Moreover, the pretreatment with nicotine during adolescence sensitized adolescent and adult animals to amphetamine-induced locomotor activation. In the present study we investigated whether the behavioral cross-sensitization between nicotine and amphetamine is related to changes in dopamine or serotonin neurotransmission. To this end adolescent rats (post-natal day 28) were treated with nicotine (0.4 mg/Kg), amphetamine (5.0 mg/Kg) or saline during seven days. Three or thirty days after the last injection animals received an acute injection of nicotine (0.4 mg/Kg), amphetamine (5.0 mg/Kg for adolescents or 1.0 mg/Kg for adults) or saline. Thirty minutes after challenge rats were sacrificed, decapitated and brains removed. Nucleus accumbens (NAcc) and prefrontal cortex (PFC) were dissected and prepared for HPLC (high performance liquid chromatography) analysis. Dopamine, DOPAC, HVA, serotonin and 5-HIAA were measured in these brain regions. Our results showed that: 1) repeated administration of nicotine attenuated the acute effect of amphetamine on NAcc dopamine levels of adolescent rats; 2) repeated administration of nicotine increased the acute effect of amphetamine on PFC dopamine levels of adolescent rats; 3) repeated administration of nicotine, during adolescence, increased the acute effect of amphetamine on PFC dopamine of adult rats. The behavioral cross-sensitization shown previously is not related to alterations in NAcc and PFC concentrations of neurotransmitters and its metabolites. However, neuroadaptations induced by repeated nicotine during adolescence endures until adulthood.
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    República Pau-Brasil : política e literatura no modernismo de Oswald de Andrade
    (Universidade Federal de São Carlos, 2009-09-24)
    Bertelli, Giordano Barbin
    ;
    Pellegrini, Tânia
    ;
    https://lattes.cnpq.br/0280434883580627
    ;
    https://lattes.cnpq.br/8423897663939012
    This work aims to investigate the relationship between politics and literature in Oswald de Andrade s modernism, mainly through the reading of Manifesto da Poesia Pau- Brasil, Manifesto Antropófago and the poetry book Pau-Brasil. We have analyzed such relationships focusing on the junction between the literary and the political fields, and the integration of its logic and agents in the sociocultural diversity process related to coffee growing. We aim at clarifying the ambiguous aspects of complicity, collaboration and dissent that the propositions and achievements of Oswald s aesthetic presented, vis a vis the efforts of preparing an epic for São Paulo. Carried out by groups and leaders of Sao Paulo s literate elite, the épica bandeirante aims to building a sociosymbolic order, which would distinguish its hegemony and would neutralize the threats arising from the cultural otherness of social groups originated in the process of change that then crossed the social area of São Paulo. In this field of forces, the modernism of Oswald appears as a symbolic force fed social and subjectively of the conflicts that composed its conditions of emergency.
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    Cores e seus significados no senso comum para apoiar a colaboração na aprendizagem via web : uma solução em forma de Padrões de Design Motivacionais
    (Universidade Federal de São Carlos, 2009-09-24)
    Dias, Ana Luiza
    ;
    Silva, Junia Coutinho Anacleto
    ;
    https://lattes.cnpq.br/6200743168568684
    ;
    https://lattes.cnpq.br/6673911479799192
    Collaborative learning supported by computers increases due to the tendency schools have to get assumed to digital inclusion in curriculum and to explore this potential as an alternative complementary to the traditional teaching methodology. According to this new practice the individual skills are valued and contribute to build up learning, which belongs to the group. However, it can be seen that learning through computing environment is not always effective because it can generate lack of motivation, little involvement and collaboration as there are limitations in computational proposals, which must always be seen as complementary to face interaction. It is always difficult to engage apprentices in learning activities in order to motivate them both to persist in challenging tasks and to value education, generally. In order to minimize the inequality of socioeconomic conditions and provide solutions that can consider cultural values of each learner involved in a collaborative task, this work shows the formalization of a Motivational Design Proto-Pattern Set based on colors and their cultural meanings built in common sense of the Brazilian. This set aims to support educational solution design to Web, which promotes collaboration, since colors may highlight important points, facilitate content reading and consequently, increase the satisfaction of use of computer resources and engagement of apprentice in their learning. The common sense used comes from the knowledge base of the Open Mind Common Sense Brazil Project (OMCS-Br) (http://www.sensocomum.ufscar.br). In order to validate this work, a Web collaborative educational environment has been modified changed applying on one of the formalized proto-patterns, and the environment was used in Vivência-Anglo S.S. Educational School in Itapira/SP, a partner in the LIA in the study of computer applications for childhood education, where was developed a case study. The results have pointed out the potential of color as a stimulus to motivation and learning, as well as the interest between educators and apprentices on Web collaborative educational environments, breaking the learning traditional paradigm, now with the computer support.
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    Uso de senso comum no apoio a jogos narrativos para crianças em idade escolar
    (Universidade Federal de São Carlos, 2009-09-24)
    Silva, Marcos Alexandre Rose
    ;
    Silva, Junia Coutinho Anacleto
    ;
    https://lattes.cnpq.br/6200743168568684
    ;
    https://lattes.cnpq.br/3381517748983487
    This research describes how common sense knowledge can help to define and to tell stories in narrative games. In order to evaluate this possibility, it has been developed a Web narrative game, called Contexteller, which allows educators to teach some skills that are part of the student s education and life, such as: ways to express themselves and to work in group. Nowadays, there are several educational challenges to teach some skills at school. For instance, educators can not easily find a tool or activity in order to help them to work collaboratively with their students. Therefore, this game allows educators, as co-authors, to create the story taking into account their goals, pedagogical approach and the student s cultural reality. Through the game, they can get some information related to the student s values, culture and knowledge, i.e., student s common sense. Then, teachers can use common vocabulary before and during the narrative, considering myths, beliefs and knowledge of the students´ group and, consequently, enabling them not only to identify but also to get interested in collaborate with the teacher and the other students to develop the story. In order to observe the use of this game in an educational environment and collect the opinion of target group a study case, described in this thesis, was performed at a school in Itapira/SP.
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    Histórico demográfico e filogeografia em populações brasileiras de Ardea alba egretta
    (Universidade Federal de São Carlos, 2009-09-24)
    Corrêa, Thaís Camilo
    ;
    Del Lama, Sílvia Nassif
    ;
    https://lattes.cnpq.br/7893772074091604
    ;
    https://lattes.cnpq.br/7328514673394233
    The present work studied populations of Ardea alba egretta (Great Egret) family Ardeidae (Aves), sampled from four Brazilian regions situated at different latitudes (Rio Grande do Sul, Pantanal, São Paulo and Amapá). Species-specific primers developed in this study allowed the sequencing of 194 individuals in the Domain I of mitochondrial DNA control region (fragment of 586 bp). Fifty-eight polymorphic sites were found, defining 74 haplotypes. Haplotype Hap9 was the most frequent and the majority of the remaining haplotypes occurred in low frequencies. Average nucleotide diversity was 0.006 and average haplotype diversity 0.908. Distribution of nucleotide diversity followed a descending order: Amapá> Pantanal> São Paulo> Rio Grande do Sul, and the differences between Amapá and the other populations were statistically significant. Results of AMOVA analysis indicated that there is genetic differentiation among populations of the four regions (Fct = 0.02145, p = 0.03324). Values of the pairwise F-statistics showed low genetic structuring among the colonies within each region, but significant structuring among the four regions. It was evident by the analysis of structuring that the genetic composition of Amapá is different from other regions. Significant differences revealed by the tests of Fu's Fs, Tajima's D, R2 and analyses of mismatch distribution, together with star-shaped haplotype networks, indicated signals of demographic expansion in the populations of Rio Grande do Sul and Pantanal. For the Amapá population only biases of Fu's Fs were significant and the curves of "mismatch distribution" can be explained by the unimodal standard distribution. The estimated time of expansion (τ) for Rio Grande do Sul population was 7,195 years before present, for Pantanal population was 32,009 and for Amapá population was 68,674. Obtained results are consistent with the hypothesis that the equatorial region likely was a refuge for populations of this species during the Pleistocene glaciations.
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    Influência da compatibilização interfacial seletiva nas propriedades mecânicas de compósitos híbridos ternários de PET/fibra de vidro/elastômeros olefínicos reativos
    (Universidade Federal de São Carlos, 2009-09-25)
    Carvalho, Gustavo Baldi de
    ;
    Sousa, José Alexandrino de
    ;
    https://lattes.cnpq.br/7737833809468759
    ;
    https://lattes.cnpq.br/2108032825479988
    Poly(ethylene terephthalate) (PET) is a semi-crystalline thermoplastic widely used for packaging of aereted soft drinks, which makes the recycling of post-consumer PET material necessary to prevent the negative environmental impact of its disposal. The recycling of PET as an engineering thermoplastic can be accomplished by the incorporation of glass fiber (GF) and elastomeric impact modifier to the PET matrix, forming a ternary hybrid composite. To assure an appropriate balance of mechanical properties of stiffness, strength and toughness in this composite, it is important that the GF and rubber particles are dispersed separately in the matrix, avoiding the encapsulation of the fibers by the rubber phase and promoting, simultaneously GF reinforcement and rubber toughening mechanisms. In this work, the influence of selective interfacial compatibilization on the mechanical properties of hybrid composites of recycled PET was studied, as the matrix polymer was modified with reactive olefin elastomers of E-MA-GMA and E-EA-MAH, as well as with short GF treated with either epoxy (FV952) or aminesilanes (FV983). Ternary systems of PET/E-MA-GMA/FV952, PET/E-MA-GMA/FV983 and PET/E-EA-MAH/FV983 were compounded in a twin-screw corotating ZSK-30 extruder and, depending on the relative reactivities of PET s chain-end groups with the functionalities present on the GF surfaces and in the E-MA-GMA and E-EA-MAH terpolymers, the GF is encapsulated or not by the elastomer phase and, consequently, the mechanical properties of the hybrid composites are affected differently. Mechanical tests and torque rheometry data indicated high reactivity between PET and E-MA-GMA terpolymer, and low reactivity with the E-EA-MAH. Analysis of tensile and Izod impact tests results, as well as from fiber-polymer interfaces observations by SEM, indicated good fiber-polymer adhesion in PET/E-MA-GMA/FV952 and PET/E-MA-GMA/FV983 systems, and fiber encapsulation by rubber particles in the case of the PET/E-EA-MAH/FV983 system.
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    Mobilidade ascendente, identidade e estilos de vida do negro (a) no interior paulista: o caso de São Carlos e Araraquara
    (Universidade Federal de São Carlos, 2009-09-25)
    Martins, Thais Joi
    ;
    Silvério, Valter Roberto
    ;
    https://lattes.cnpq.br/9421231847055027
    ;
    https://lattes.cnpq.br/1495908295162360
    This work has the focus to bring reflection about identity and trajectory of some black professionals and businessman from west of the State of Sao Paulo. We search to know how these black people walk their path and lifestyle and meaning and remaining their identity when reach important posts and positions at the work market, that is, when reach a raising social and economic mobility. In this way, first counting on a bibliographic review about the thematics cited above and subsequently with an analytic descriptive moment that will count on exposition and analysis of the data obtained in interviews made with middle class black people from local authority of Sao Carlos and Araraquara. It has also the intention to do a qualitative analysis so we can get more precisely results for reflection in a conclusive way about the construction of the black people s identity and insertion in the Brazilian work market.
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    Metaheurística tabu aplicada ao problema de carregamento de contêiner com caixas idênticas
    (Universidade Federal de São Carlos, 2009-09-25)
    Poli, Guilherme Izidoro
    ;
    Pureza, Vitória Maria Miranda
    ;
    https://lattes.cnpq.br/2842453464277778
    Intermodal transport, that is, the integration between different transport modes was facilitated by the use of containers. The stowage devices in the breakdown of the cargo is an important logistics activity, since the total volume actually used can affect significantly the cost of transporting the products. This approach addresses the Container Loading Problem, which more generally consists in arranging items (for example, products packaged in boxes) of various sizes within larger objects (for example, containers) with the maximum use of the available volume. In particular, it is considered the special case where the boxes to be arranged are rectangular and identical (single sized) and there is only a single container. In order to tackle these problems, the 2006´s Tabu Search heuristic by Pureza and Morabito, originally proposed for the Manufacturer s Pallet Loading Problem, was extended. From an initial solution generated by a block heuristic, moves are applied to selected blocks in order to change their box orientation and/or to expand them in one of the six directions, which result in the reduction, elimination and creation of other blocks. Criteria for stability of the load are also addressed in this work. Computational experiments using a set of instances in the literature demonstrate the performance of the proposed approach.
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    Proposta participativa de redesenho agroecológico da microbacia do Córrego Três Barras
    (Universidade Federal de São Carlos, 2009-09-28)
    Coletty, Carlos Eduardo
    ;
    Stolf, Rubismar
    ;
    https://lattes.cnpq.br/5598396937740054
    The exploration of the extensive livestock and of the coffee s monoculture, nowadays abandoned, associated with the abandonment of traditional cultures led to the degradation of the micro watershed of the Córrego Três Barras at the city of Jacutinga, south of Minas Gerais. For not get the culture of their lands sustenance local agricultural families seek for work in neighboring cities. This reality motivated the search for alternatives that can contribute to ambient, economic and social recovery in this region. The general goal of this work was to established, in a participatory manner, the bases in which this community can redraw their model of occupation through an adoption of agroecological concepts and practices. The specific goal was to indentify the potentialities and the critical aspects through the realization of a Rural Participatory Diagnosis DRP. This case study was made in the farm/site Três Barras, property that features the rural familiar agricultural of the others properties of this agroecosystem. The comprehension/understanding of this diagnosis allowed to the local social actors the beginning of a new development´s draw with the agroecological practices adoption.
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    Educação para a vigilância do desenvolvimento infantil: formação virtual e presencial para educadores de creche
    (Universidade Federal de São Carlos, 2009-09-28)
    Neófiti, Cíntia Cristina
    ;
    Martinez, Claudia Maria Simões
    ;
    https://lattes.cnpq.br/4802235453549037
    The literature points out to the presence of biological and environmental risks for the child s development during their first years of life which could be influenced by factors present in several environments. In the national scenario, a day care center has been considered as one of the development contexts for being a place where they cohabit and interact, most of their time, with adults and their pairs. It is believed in this environment that there are early possibilities of risks, delays and deficiencies; the child s stimulation in the daily routine could be emphasized. In this sense, the importance of investments on the formation of educators in the perspective of having them as partners in the surveillance on the infant development foundation stands, therefore, in a preventable action in the field of Special Education. It is understood as surveillance all the activities related to the promotion of the normal development and to the detection of problems in the development. The study hereby aimed elaborating, implementing and evaluating a program of long distance capacitance to the day care center educators (Day care center educators development surveillance program Programa de Vigilância no Desenvolvimento para Educadores de Creche PROVIDEC) for the development of surveillance actions, in practice with babies. There were 47 municipal day care center educators of a medium-sized city from Sao Paulo state who composed the experimental group-EG and the control group-CG. The content of PROVIDEC considered the child development, risk factors and protection mechanisms, surveillance actions, the role of the educator at the day care center, stimulation opportunities in the day care center daily routine and health promotion. PROVIDEC counted on six virtual classes and with two present moments. This study was developed in three stages: preparation of fieldwork, invitation to the participants and composition of the groups; program elaboration; and, implementation and evaluation of the program by means of an experimental delimitation, with an experimental group and equivalent control, and, pre and post-test measures. It counted as well on pre and post-test instruments, characterization questionnaire from the participants, evaluation/perception questionnaire about the program, and the PROVIDEC. The use of those instruments demanded qualitative and quantitative seal analysis. From the results obtained, it is possible to note an increase on the repertoire of participants from the EG where it improves its answers at the moment of the post-test in 79 corporative items to the CG with only 8. From the qualitative point of view, the increase on the repertoire of the participants from the EG happen regarding the following themes related to the surveillance of development: the educator s attitudes at the moments where an abnormality or a risk for the child is noted, regarding the mechanisms of protection, to the marks of the Child Development and to the Risk Factors. Such results are discussed under the optics of the prevention actions in the field of Special Education. Future researches are suggested in the sense of the proposition of interface models among educators and basic health attention professionals to the development of surveillance operationalization actions.
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    Um modelo de visão computacional para identificação do estágio de maturação e injúrias no pós-colheita de bananas (Musa sapientum)
    (Universidade Federal de São Carlos, 2009-09-28)
    Tezuka, Érika Sayuri
    ;
    Cruvinel, Paulo Estevão
    ;
    https://lattes.cnpq.br/7924553462118511
    ;
    https://lattes.cnpq.br/4759964900793721
    This dissertation presents the development of a computer vision system for bananas (Musa sapientum) analysis in post-harvest stage based on digital image processing techniques. The development used considerations about image acquisition, pre-processing, identification based on texture, percentage of brown spots and injuries on the fruits and classification of its maturity levels. The validation has been developed considering geometric patterns generated in laboratory, as well as real fruits. With the texture map it was possible to identify the existence of brown spots or injuries in a specific region of the images. The assessment of the level of maturation was performed considering both human observers and the computer vision system. The average of identification level of maturity was equal to 50% for human observers and 100% for computer vision. The results show identification rates of 80.40% for brown spots on the single image of banana, 97.70% for brown spots on the images of bundle of bananas, 97.80% for injuries for the set of single image of banana, and 75.30% for hand injuries considering the images of bundle of bananas. Besides, the method presents application for quality assessing of fruits in the post-harvest procedures.
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