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Consciência e liberdade em Sartre: por uma perspectiva ética
(Universidade Federal de São Carlos, 2010-03-19)
Moura, Carlos Eduardo de
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Monzani, Luiz Roberto
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https://lattes.cnpq.br/2036732603638197
;
https://lattes.cnpq.br/9919710226746652
L'avènement morale de Sartre exposé à travers de l'affirmation de la liberté, la seule base et la source de toutes les valeurs. La Conscience se constitue, au coeur de l'histoire, comme conscience morale en devenant évaluation et réflexion sur les valeurs, appelant à un fondement et ce fodement est «la conscience pendant que liberté": la conscience est la source du valeur. L'oeuvre moral que Sartre avait promis à la fin de L'être et le néant il peut trouver son prolongement dans les Cahiers pour une Morale, ce qui permet d'esquisser les contours d'une morale authentique comme une question angoissante cloué dans le coeur des hommes plutôt que d'une série d'exigences purement abstraites. La question centrale des Cahiers est sur la place du valeur dans le domaine de la morale, comme Sartre mettais à la fin de L'être et le néant a partir de la notion de liberté qui a ensuite formulé: liberté et responsabilité placée dans une dimension l'éthique. Le monde étant composé dans une relation d'interdépendance, l'autodétermination, la collectivitté et l'Histoire est que fonderont cette liberté et cette responsabilité éthiquement. Le point de départ de la pensée de Sartre est la subjectivité, avec la figure d'un homme qui est transcendance et, par conséquent, fait partie de l'histoire et est toujours en relation avec d'autres consciences, de sorte que le moral et la historialización affirment la liberté. Parler de la coexistence est mettre en avant de l'être une moral du devoir-être qui suppose une détotalisation, une création morale qui ne pourra jamais être indépendant des circonstances historiques: le cogito et la liberté sont la source de toute valeur. La morale de l'action et de l'engagement est soutenue par une liberté qui n'est pas abstraite, mais seulement exercée sur une situation concrète, par un individu qui produise la "totalité" et par elle soit produit. Il n'y a pas a priori, il n'y a pas de vérité révélées et c'est ainsi que le coefficient d'adversité se présente pendant le procès, qui permet à l'homme d'examiner ses valeurs et de exercer l'acte créatif: l'homme se engage dans une monde résistant. Comme il n'est pas seul, la valeur, le devoir et l'obligation appairaissent au moyen de un jeu dialectique des consciences libres. Ceci est la conception sartrienne de la reconnaissance du groupement humain comme totalité détotalisée . Par conséquent, seulement est possible de comprendre la morale à approfondir dans les relations entre la morale et l'histoire. Le «système des fins» ne peut être défini que par un sujet qui se projette dans l'avenir, qui construit ses propres possibilités, en et par la réalité humaine concrète. La praxis, défini par la perspective Dialectique de la tension entre le «Universel-Singulier», est donné par un sujet qui reconnaît sa propre autonomie et d'autres, est la actualisation de sa liberté et de l'autre et ce par une conversion qui se fait dans une situation: une vraie moralité concrète sera possible seulement par une action systématique sur la situation pour la suppression de l'aliénation.
Processamento sol-gel de pós bioativos vítreos e cristalinos
(Universidade Federal de São Carlos, 2010-03-19)
Siqueira, Renato Luiz
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Zanotto, Edgar Dutra
;
https://lattes.cnpq.br/1055167132036400
;
https://lattes.cnpq.br/0273898472927352
In recent years, the sol-gel process has been increasingly used in the preparation of glasses and glass-ceramics with biomedical applications. Although the precursors used in this synthesis methodology are a very important parameter, few studies have investigated their influence on the synthesis of these materials. In the present work, vitreous and crystalline bioactive powders of the systems SiO2−CaO−P2O5 and SiO2−CaO−Na2O−P2O5 were synthesized by means of a sol-gel route using different phosphorus precursors. The compounds chosen were triethylphosphate (OP(OC2H5)3), phosphoric acid (H3PO4), phytic acid (C6H18O24P6), and a solution prepared by dissolving phosphorus oxide (P2O5) in ethanol. The resulting materials were characterized by differential scanning calorimetry and thermogravimetry (DSC / TG), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy coupled with energy-dispersive spectroscopy (SEM / EDS), and by in vitro bioactivity study. The use of different precursors significantly affected the main steps of the synthesis, beginning with the gelation time. The most striking influence of these precursors in the synthesis process was observed during the thermal treatments between 700 and 1200 °C for the conversion of the gels into ceramic materials. In this case, the samples, especially those prepared using phosphoric acid, exhibited very different mineralisation behaviours, but all were proven to be bioactive with in vitro tests. The bioactivity of these materials was strongly influenced by the treatment temperature, and in the case of the crystalline materials, also by the phases present. In vitreous materials, the bioactivity decreased with the stabilisation temperature. In the crystalline materials, the in vitro bioactivity was favored by the presence of wollastonite (CaSiO3) and alpha-tricalcium phosphate (α-Ca3(PO4)2) for the system SiO2−CaO−P2O5, and by sodium calcium silicate Na2Ca2Si3O9 for the system SiO2−CaO−Na2O−P2O5.
Proposta de teste específico para determinação do limiar anaeróbio, limiar de compensação respiratória e máxima fase estável do lactato sanguíneo em judocas
(Universidade Federal de São Carlos, 2010-03-19)
Azevedo, Paulo Henrique Silva Marques de
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Perez, Sergio Eduardo de Andrade
;
https://lattes.cnpq.br/9408953831211309
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https://lattes.cnpq.br/6559911217770194
Inovação nas condições de cultivo visando o melhoramento da produção de vacina contra erisipela suína
(Universidade Federal de São Carlos, 2010-03-19)
Machado, Maria Manuela Pereira
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Zangirolami, Teresa Cristina
;
https://lattes.cnpq.br/4546701843297248
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https://lattes.cnpq.br/8003315191142884
Pork is one of the most widely eaten meats in the world and pig farming is an economic activity booming in Brazil and the world. Several efforts have been made to develop more effective vaccines for major diseases that are affecting livestock such as swine erysipelas, caused by the bacterium Erysipelothrix rhusiopathiae. The currently available vaccines for the prevention of erysipelas are produced with culture broth of this microorganism inactivated or attenuated. The main antigenic agent identified is an protein fraction of 64-69 kDa, present in cell wall of bacteria and the supernatant of the culture. Given the accumulated knowledge of the studies conducted by Silva (2007), this study aimed to: i) study the conditions employed in the preparation of cell suspension for freezing and formation of culture stocks in crytubes and the stage of their activation; ii) studying the growth of E. rhusiopathiae, the formation of lactic acid and expression of antigen in culture media containing carbon sources alternative to glucose and in culture media containing nitrogen sources of plant origin; iii) to study the behavior of the microorganism in the new culture medium, animal-free, in a bioreactor. The studies for the improvement of the medium formulation were carried out in flasks incubated at static condition or under agitation of 200 rpm. The temperature was set at 37°C and the initial pH at 8,0 in all experiments. The studies in bioreactor were made using a 4.0 L stirred-tank bioreactor, with an agitation frequency kept between 100 and 700 rpm and air flow rate of 1.0 L/min. Samples of cell extracts made with choline chloride were analyzed by electrophoresis under denaturating conditions (SDS-PAGE) to evaluate the antigen expression. Studies of activation of the criotubes containing frozen cell suspensions led to the standardization of this step, with high reproducibility, and reduced activation time by 50%. The studies were grew with different carbon sources, showing that E. rhusiopathiae is able to assimilate galactose, lactose, and glucose. However, there was no assimilation of glycerol. The replacement of proteose peptone, a nitrogen source animal widely used in the cultivation of E. rhusiopathiae to produce bacterins, by Soytone, a soy peptone, animal-free, was a promising alternative for the production of the inactivated vaccine, helping to increase the specific growth rate and substrate conversion of cells in relation to values obtained in conventional medium. In batch cultivation performed in a bioreactor with medium containing glucose and Soytone, it was reached a biomass concentration of 10 g / L at 5 hours of cultivation. For the conventional medium, containing proteose peptone, the maximum cell concentration reported for the test batch in a bioreactor was approximately 2 g / L, which was reached after 7 hours of culture. Note also that a higher level of expression of antigenic protein in relation to those observed with peptone of animal origin was achieved in cultures performed with medium containing soytone.This result shows that could be incorporate the best practices of manufacturing practices for pharmaceutical and veterinary products, subject to the productivity of the process and with significant cost reduction.
Apropriação do conhecimento científico: o sistema patentário a partir do enfoque CTS
(Universidade Federal de São Carlos, 2010-03-21)
Santos, Elis Regina Alves dos
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Sousa, Cidoval Morais de
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https://lattes.cnpq.br/0573233540937425
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https://lattes.cnpq.br/6551978602305933
The field called Science, Technology and Society (STS) is articulated in the late 1960s and early 1970s, trying to understand the scientific-technological phenomenon within the social context. The social appropriation of knowledge becomes a central aspect of concern. Starting from the assumption that the technological training in undergraduate, in current patterns, aligns with an instrumental view of technoscience, this research investigated the understanding of the patent system among students in recent years of courses of exact sciences and technology area, linked to the Center of Exact Sciences and Technology (CEST), from Universidade Federal de São Carlos - UFSCar. More specifically, we attempted to observe how students relate the themes of intellectual property with society, work and academic background. For this we adopted an analytical and descriptive methodology, of qualitative and quantitative character. The original instrument of data collection used was a half-open questionnaire. For the qualitative analysis we used the method of content analysis (CA) applied to the open question of the questionnaire. The results suggest little consolidated knowledge about the patent system and intellectual property as a whole, and the replication of ideas linked to a linear view of scientific-technological development. The patent is seen as instrumental and is strongly linked to the concepts of innovation, competitiveness and development, in addition to commercial and economic values it embodies. Few signs of social concern in relation to the themes of research were found, and it was verified that the university needs to expand its areas of discussion at graduation, introducing, for example, the STS as well as a compulsory subject in undergraduate courses in technology.
Mundo interior e expressão: a filosofia da psicologia de Ludwig Wittgenstein
(Universidade Federal de São Carlos, 2010-03-22)
Fatturi, Arturo
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Ferraz Neto, Bento Prado de Almeida
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https://lattes.cnpq.br/0084436724293824
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https://lattes.cnpq.br/4156093176435666
This thesis analyzes the grammar of the psychological vocabulary with the idea that inner world (the subjectivity) and external world (the behavior) are connected by grammatical relations which must be clarified through a conceptual inquiry and not through empirical findings. To reach to the objective we analyzed the common point of view that we have of our inner world and traces the linkings between our affirmations about the inner world and how they acquire meaning from this common point of view. The following step was to analyze the conception of privacy that the common point of view attributes to the events of the inner world. After this we argue that the common conception does not could be a base for the construction of a philosophical explanation of the inner world. Therefore the objective of the common vision of our interior world is not to elaborate a scientific explanation. At the same time we conclude that our common conception of the psychological vocabulary is not a proto-theory that must be developed by the philosophical investigations. From this we open the way to present the philosophical point of view of Ludwig Wittgenstein about the psychological vocabulary. We explain this point of view to clarify our objective. Subsequently we presents the conception of language of Wittgenstein and we link his conception with the way for which he treated or understanding of the psychological vocabulary. With this explanation we show that when we are dealing with the affirmations of our inner world - our psychological vocabulary - we are not contending with a dichotomy between behaviorism and Cartesianism. Wittgenstein shows that we have another form to explain our language about the inner world. According to Wittgenstein's philosophy of the psychology our behavior is an expression of the inner world, that is, the inner if express world through the behavior despite if it does not reduce to the behavior. With such idea, Wittgenstein admits that the relation enters our affirmations on the interior world cannot be understood in isolated way of our behavior. At the same time, our behavior alone is not the criterion for understanding of the inner world, is necessary that the behavior be considered inside of a specific language game that is our use of our concepts of the psychological vocabulary.
Caracterização magnética do compósito multiferróico (1-x)Pb(Mg1/3Nb2/3)-xPbTiO3/NiFe2O4
(Universidade Federal de São Carlos, 2010-03-22)
Gualdi, Alexandre José
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Oliveira, Adilson Jesus Aparecido de
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https://lattes.cnpq.br/4640148190073166
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https://lattes.cnpq.br/5751113105751035
In this work we studied the magnetic properties of nickel ferrite and the (1-x)Pb(Mg1/3Nb2/3)-xPbTiO3/NiFe2O4 (PMN-PT/NFO) multifferroic composite syntherized in different temperatures. The magnetization, magnetostriction and magnetoelectric effect measurements were performed as a function of applied magnetic field at room temperature. The goals of the work were the developement of the instrumentation. For magnetoestriction measurements a capacitive cell was design for this application. The magnetoelectric measurements were performed in two experimental setup: one uses the Physical Properties Measurements System (PPMS) by Quantum Design and the other system was adapted in a vibration sample magnetometer (VSM) We observed that magnetic properties present a dependence with the synthesis conditions as well as the nickel ferrite than the composite sample. We observed also an intrinsic dependence with the magnetostriction properties of composite.
Produção de substâncias bioativas por microrganismos endofíticos isolados do Cerrado de São Carlos-SP
(Universidade Federal de São Carlos, 2010-03-22)
Favoretto, Naira Beatriz
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Sousa, Cristina Paiva de
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https://lattes.cnpq.br/9002619114161319
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https://lattes.cnpq.br/5078585898153039
The Brazilian tropical savannah occupies a large area in Brazil and includes a high variety of plant species. This diversity is an important source of endophytic microorganisms consisting mainly of bacteria and fungi that inhabit the interior of plants. Endophytes can produce bioactive metabolites that exhibit activities of biotechnological interest, such as antibacterial and antifungal action. The aim of this study was to isolate from Butia capitata var capitata (Coquinho-do-cerrado), Solanum lycocarpum (Lobeira), Stryphnodendron polyphyllu (Barbatimão), Miconia albicans (Quaresmeira-white) and Aegiphila lhotzliana (Tamanqueira), collected on Brazilian tropical savannah at São Carlos, SP, endophytic microorganisms with suggestive features of the genus Streptomyces. The samples were characterized through macroscopic, physiological, biochemical and morph-dying characteristics. The antagonistic potential was tested against Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922, Serratia marcensis ITB 1475, Enterococcus faecalis ATCC 29212, Shigella sonnei ATCC 10231 and Candida albicans ATCC 10231. 26 samples of endophytic microorganisms were isolated and selected two, one from Butia capitata var capitata and another one from Miconia albicans. Both presented microbiological characteristics of Streptomyces. The microorganism isolated from Butia inhibited the growth of Staphylococcus aureus (13 mm) and Enterococcus faecalis (11 mm), and the one isolated from Miconia did not show bioactivity against the pathogens tested.
Análise das estratégias de produção em fornecedores de marcas próprias: estudo multicaso em empresas do setor de alimentos
(Universidade Federal de São Carlos, 2010-03-22)
Yokoyama, Marcos Hideyuki
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Silva, Andrea Lago da
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https://lattes.cnpq.br/7581348521996846
The own-brand strategy has been adopted by wholesalers and retailers seeking competitive advantage through the commercialization of products sold under their brand names. The adoption of this strategy has created a new demand for the suppliers, which need to reevaluate their production structure to decide whether or not to manufacture such products. This research aims to identify and analyze the manufacturing strategy elements present in own brand supplier companies describing the motivations, positioning, and combinations of the content of the production strategy adopted. The first part comprises a literature review. In the empirical research, six case studies were carried out in companies which supply own brands in the food sector meeting the following criteria: suppliers that focus exclusively on own brands market; suppliers that sell national brand and own brand at the same time; and suppliers that sell both brands and have a representative national brand in the market it operates. Personal interviews were conducted with commercial or production managers based on semi-structured questionnaires prepared in accordance with the literature on the own brand strategy, competitive strategy, and manufacturing strategy. As a result of this research, it was possible to make some considerations about the characteristics of the suppliers pointing out the major differences between the literature and the data obtained in the empirical research with regard to the motivations for supplying and the characteristics related to production and commercialization. In addition, the companies were described according to their positioning strategies and were analyzed based on the generic production strategies adopted. Thus, based on such information, some relationships were established between the strategies adopted and the structural and infrastructure decisions, and the companies were evaluated based on the stage of their ownbrand evolution. Finally, new contributions were identified and suggestions for future research were put forward in an attempt to consolidate the knowledge of own brand suppliers in Brazil.
Potencial alelopático de Sapindus saponaria L. (Sapindaceae)
(Universidade Federal de São Carlos, 2010-03-24)
Grisi, Patricia Umeda
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Perez, Sonia Cristina Juliano Gualtieri de Andrade
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https://lattes.cnpq.br/9973185407856723
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https://lattes.cnpq.br/8776261076954624
Studies on allelopathy have been important in understanding the processes by which plants influence their neighborhood by releasing substances of secondary metabolism and its application in agriculture, forestry systems and ecosystem management. The objective of this study was to evaluate the allelopathic potential of aqueous extract of root, fruit, young and senesced leaves of Sapindus saponaria L. (soapberry) on the germination of seeds and morphology of seedlings vegetables (Lactuca sativa L. and Allium cepa L.) and weed (Echinochloa crus-galli (L.) Link and Ipomoea grandifolia (Dammer) O Donell). Moreover, was evaluated by fractionation biodirigido, the allelopathic activity of different fractions of extracts from young leaves of Sapindus saponaria on the growth of wheat coleoptile (Titicum aestivum L.). The aqueous extract was prepared using 100 g of plant dried or fresh material + 1000 mL of distilled water, resulting in the concentrated extract (10%). The dilutions were made with distilled water to 7,5; 5,0 and 2,5%. The extracts showed allelopathic potential changing according to the receiver species. The inhibitory effect on the process of germination of the seeds and seedling morphology receptor was concentrationdependent. The leaf extract caused greater inhibitory effect on germination, while the extracts of the fruit and young leaves were the most inhibited seedling development. Chemical analysis of young leaves of Sapindus saponaria, showed that the fraction of ethyl acetate showed higher allelopathic activity on the wheat coleoptile and that it can be found on the compounds responsible for this inhibition.
Modelo de mistura padrão de longa duração com censura uniforme-exponencial
(Universidade Federal de São Carlos, 2010-03-25)
Chaves, Josenildo de Souza
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Rodrigues, Josemar
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https://lattes.cnpq.br/4359114733394761
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https://lattes.cnpq.br/5748689441032603
In survival data analysis it is common the occurrence of a large number of individuals to the right. This fact can indicate that, in a fraction of the individuals the event of interest will never happen, in other words, a fraction of individuals of the population is cured or immune. This case is not usually taken into account by the usual survival theory that, in general, considers that the individuals at risk will not achieve cure during the follow-up period. Therefore, the survival models with cure fraction, or long-term survival models, have received a lot of attention in recent years. We consider the exponential distribution for the survival time of individuals at risk and the uniform-exponential distribution for the censoring time. In many situations, it is evident that the censoring mechanism is informative. Lagakos & Williams (1978) proposed a class of models where the acting of the censoring mechanism in the survival time is evaluated and Lagakos (1979) presented several situations in which the assumption of noninformative censoring is violated. The main purpose of this work is to verify the impact of informative uniform-exponential censoring in the survival data analysis under the standard mixture model.
Produção de ácido clavulânico por Streptomyces clavuligerus em cultivos em batelada e batelada alimentada com pulsos de glicerol sob diferentes condições de temperatura
(Universidade Federal de São Carlos, 2010-03-25)
Costa, Cecília Ladeira Lopes
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Badino Júnior, Alberto Colli
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https://lattes.cnpq.br/8903118201027369
The production of enzymes β-lactamases by pathogenic bacteria is the most common mechanism of resistance to β-lactam antibiotics. The β-lactamases catalyze the hydrolysis of β-lactam ring, splitting the amide bond, as a result, the antibiotics become ineffective. Clavulanic acid (CA) is a secondary metabolite β-lactam produced during the fermentation of Streptomyces clavuligerus and has a potent inhibitory activity of β-lactamases. Like other β-lactam compounds, CA is chemically unstable under high temperature conditions. The decomposition of the AC during the bacterial fermentation reduces its concentration in the broth which results in low yields of the process. In this study the production of CA was evaluated in batch processes and batch with glycerol pulses at different temperature conditions in shaker operated at 250 rpm and pH 6.8. Initially, three batch cultures containing glycerol as carbon source were performed at temperatures of 30, 25 and 20ºC. Batch cultivation at 30°C was considered as a control run. Then, other three batch tests were performed with reduction of temperature of 30°C for 25 or 20°C after the exhaustion of glycerol in the broth culture. Added, also were performed four cultures with reduction of temperature associated with feeding of glycerol (1, 2, 3 and 4 pulses of glycerol), resulting in twelve cultures. In general, the production of CA increased with decreasing temperature and feeding of glycerol was beneficial for CA production. For all experiments under low temperatures, the maximum production (CCA-max) and productivity in CC (PCA-max in mg.L-1.h-1) were higher than the control run. In addition, a significant increase product (CA) yield coefficient in relation to the glycerol consumption (YCA/G, mg.g-1) reaching 59.3 mg.g-1 for the batch culture at 20°C, while for the control run was obtained 10.2 mg.g-1. The CCA-max obtained was 1115.6 mg L-1 in cultivation with temperature reduction from 30 to 25°C and three pulses of glycerol, which represented about 7 times the yield on the run control culture at 30°C. The CA degradation in fermentation broth at temperatures of 30, 25 and 20ºC was also evaluated in this study. Values of constant degradation of CA (kdCA) were obtained in different cultivation times. The highest kdCA value in the broth was obtained at 30°C, 0.01306 h-1, and values for 25 and 20ºC were statistically similar, 0.00303 and 0.00173 h-1. The higher rate of production of CA (rCA) of 10.9 mg.L-1.h-1 was observed at 25°C. The results obtained demonstrate the potential application of temperature manipulation during S. clavuligerus fermentation for the optimization of CA production process.
'Cinco prefácios para cinco livros não escritos' de Friedrich Nietzsche: distanciamento em relação a Richard Wagner
(Universidade Federal de São Carlos, 2010-03-25)
Hasunuma, Renato Fabrete
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Fonseca, Thelma Silveira da Mota Lessa da
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https://lattes.cnpq.br/5963148137119518
Friedrich Nietzsche s text Five prefaces to five not-written books (concluded in December 1872) can be read as a document attesting a reserve that would grow stronger between the philosopher Friedrich Nietzsche and the composer Richard Wagner. That reserve would culminate in the subsequent rupture with the close relationship that both of them had cultivated at the time of the composition of Nietzsche s first book, The Birth of Tragedy (concluded in December 1871). The interest of the Five prefaces to five not-written books consists on the fact that, although being considered as belonging to the initial phase of Nietzsche s production, this text already gives signs of many themes that Nietzsche would develop in his search of his own philosophy, which his second book, Human, all too human (published in 1878) is already a product. The prefaces raise a discussion concerning a very characteristic trace of Nietzsche s philosophy that appears here for the first time: the fragmentary character and the intentional incompleteness of his work. Thus, one of the main purposes of this research consists on the conceptual prove, through the investigation of the published works and the posthumous fragments, of the remark of Nietzsche s quest of his own philosophy and how the rupture with Richard Wagner, from the biographical perspective, could have meant to it.
Dilemas vividos por duas professoras da escola pública ao ensinarem ciências em uma perspectiva de formação para a cidadania
(Universidade Federal de São Carlos, 2010-03-26)
Camargo, Cristiane Cordeiro de
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Mizukami, Maria da Graça Nicoletti
The present investigation was guided by the question, which are the dilemmas faced by public school teachers whilst indicating public policies sacred stories considering education for citizenship? The term sacred story was developed by Clandinin and Connelly ( 1995) to refer to the manner in which the theoretical speech of educational research is presented to teachers. In the context of this research, education for citizenship in the teaching of science is regarded as sacred story. Above all, in the Science-Technology-Society approach to teaching science, education for citizenship has been a strongly emphasized speech in researches as well as in official curricular guidance. Commonly, research in the area of teaching science has treated the issue of education for citizenship in terms of teaching methods, curricular proposals, content selection and the teachers´ representations in respect to the meaning of the term education for citizenship (SANTOS e SCHNETZLER, 1996; PRAIA, GIL-PEREZ e VILCHES, 2007; SANTOS, 2007). In this work, the attempt is to approach the theme from another perspective, proposed by the narrative inquiry. In the educational research, the narrative approach to teachers´ knowledge identifies itself with the comprehensive, interpretive and interactional studies (BORGES, 2001). It is an epistemological approach which understands the experience as a means in which human beings present themselves in relation to reality (CLANDININ e ROSIEK, 2006) and, consequently, takes narratives not only as the phenomena intended to investigate, but also as a research method. The theoretical reference for the comprehension of the teachers´ professional knowledge founded itself in concepts of practical personal knowledge and of professional knowledge landscape (CLANDININ e CONNELLY, 1995). Classroom observations, interviews and informal conversations with the participants, with or without the help of a digital register using a recorder, were methods used for the account and register of stories. Narrative accounts were composed and shared with the participants for the analysis of data, in which it was intended to identify the narrative unities comprehended as elements which allowed to unify as a whole, the stories told by the teachers. The results point out as to how the teachers´ dilemmas relate themselves to their practical personal knowledge and their professional development landscape, indicating how the context assumes a relevant role in the experience of these dilemmas. As possible contributions to this investigation, these results allow a further complex analysis of the teaching in science and education for citizenship theme, giving indication of transforming movements and resistance in teaching practice, frequently analyzed partially by other theoretical-methodological approaches, and how in these movements, actuates the teachers´ professional knowledge landscape.
Teoria de invariantes de formas binárias
(Universidade Federal de São Carlos, 2010-03-26)
Fehlberg Júnior, Renato
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Tomazella, João Nivaldo
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https://lattes.cnpq.br/0051564735964760
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https://lattes.cnpq.br/4297634330123270
In this work, we studied article [6], that answers the following questions:how are all covariants of binary forms? What are and how to find the canonicalforms of the binary forms of degree n? Is there a finite generating set for theconvariants of binary forms of degree n? The first question will be answered bythe First Fundamental Theorem. The second question will be answered using thetechniques of apolarity. And for application, we will show the results for binaryforms of low degree. Finally, the third question will be answered by the FinitenessTheorem.
Análise de impactos de vizinhança decorrentes da implantação de supermercados no Município de São Carlos
(Universidade Federal de São Carlos, 2010-03-26)
Gonçalves Neto, Pedro Silveira
;
Lollo, José Augusto de
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https://lattes.cnpq.br/8987677644041247
;
https://lattes.cnpq.br/5691692930877152
The study of the neighborhood impact deals chiefly the question of the limit intervention in the urban area. Due to the high population growth and the absence of laws to propose a direction to the use and land cover, these were conducted in a disorderly way. The result can be seen in the spatial segregation experienced by low-income population and the ineffectiveness of infrastructure urban systems that permitted the placement of large buildings without the proper review within the current legal parameters. The Federal Law 10.257/2001, also known as City Statute, emerged as one of the guidelines for analysis of urban land, because imposes the rules that permit a better reclamation of land use through the study of the neighborhood impact (EIV). The City Statute relieves a significant importance as regards the provision of urban and community, transport and public services, to the interests and needs of the population and the local characteristics in the development of RIV, since the man's action on urban land, without a prior planning, already shows signs of degradation not only of the urban environment, but also with regard to the physical environment. In this context, this project was developed, with the help of GIS tools, in a study covering the municipality of São Carlos and different categories of supermarketsized (small, medium and large - defined based on the area occupied by development and volume of activity) in order to assess the influence of the size of the business in the neighborhood impacts generated by these supermarkets. The work has developed about how the positioning of companies (in addition to other factors such as size of the building and nearby) contribute to the increase in population density and change of use of buildings, thus the result post-deployment directly affects attendee population of the nearby building. The results showed that the Geographic Information System enabled relationships between the variables and was capable to spatialized them effectively. In addition, was found that the legislation does not have total conditions to guide the studies of urban impacts due to the complex integration between the urban environment and impacting components.
Parentalidade e conjugalidade na adolescência : uma proposta interventiva
(Universidade Federal de São Carlos, 2010-03-26)
Maia, Joviane Marcondelli Dias
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Williams, Lúcia Cavalcanti de Albuquerque
;
https://lattes.cnpq.br/6962646759651464
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https://lattes.cnpq.br/4023154634977944
Adolescent pregnancy rate in Brazil is a public health problem. In general, research in the area of adolescent parenthood, and official data, are directed to motherhood in this phase with descriptive studies. Marital relationship in adolescence is a largely neglected theme, with lack of intervention research. Thus, the importance of the present study due to the lack of research in the area, the risks involved in adolescent pregnancy for the couple of teen parents and for child development, and the need to develop public policies. This research involved two studies. Study 1 was aimed at developing, implementing and evaluating the effectiveness of an intervention program for young couples, when at least one couple member had their first child during adolescence, and whose firstborn were less than seven years of age. The intervention seeked to improve marital and parental skills. Study 2 was aimed at replicating the intervention program for parents in Study 1, and evaluating it with adolescents parents whose children were in early infancy. Participants were referred by institutions of Sao José do Rio Preto area, São Paulo estate. Two couples of parents participated in the Study 1 and at least one had been an adolescent parent, with ages ranging from 24 - 30 years. In study 2, two couples of parents aged between 15 - 18 years participated. Schooling in the two studies ranged from incomplete Elementary School to incomplete High School. All participants had dropped out of school. Multiple measures were taken, with some instruments applied in three moments (pretest, posttest and follow-up), and records of self-reporting during the interventional procedure. In Study 1 the instruments and types of data collection used were: Parent Interview, Brazil Economic Classification Criterion, Marital Social Skills Inventory, Parental Styles Inventory, The Child Abuse Potential Inventory, Daily Record of Parental Satisfaction, Daily Record of Marital Satisfaction, A Field Diary, Final Interview and Followup Interview; and in Study 2: Parent Interview, Daily Record of Parental Satisfaction, Daily Record of Marital Satisfaction, Diary of Field, Final Interview and Follow-up Interview. Interventions were performed in the house of participants, lasting approximately three months with each couple. The intervention consisted primarily of interactive games directed to relevant skills training and instructions on the main themes of the study. The procedures was responsible for maximizing engagement and participation of couples. Results of the studies showed the effectiveness of intervention terms of improving parenting and marital skills expressed with an increase of scores of the instruments, as well as with their statements during the interventional procedure. Analysis of the satisfaction of participants in daily marital and parental roles indicated in several cases, a mutual influence between structures of autocorrelation and cross correlation parental and marital subsystems, at the beginning and end of the study, indicating could changes, tending to independent responses. It is hoped that this research contributes to the appropriateness of intervention programs that address parenting and marital relationship in adolescence, to stimulate significant protective factors and the resilience process. Prevention could occurs at various levels, including parents who had their children in adolescence and their children. Due to the fact that they are no longer adolescents, it does not mean they should be free from adolescent parenthood risks. Such issues should be reviewed by professionals of the area with development of public policies.
Processamento de nanofibras de poliamida 66 / nanotubos de carbono de múltiplas camadas por eletrofiação
(Universidade Federal de São Carlos, 2010-03-26)
Godoy, Vitor Alexandre Garcia
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Bretas, Rosario Elida Suman
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https://lattes.cnpq.br/2805349172281345
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https://lattes.cnpq.br/3484250902754351
Nanocomposite fibers with polymer matrix have many applications, such as protective clothing, filtration and artificial blood vessels. Many of these applications require that the fiber has nanometric size due to some properties, as high surface area and high aspect ratio. In this research, aligned and non-aligned nanocomposites of polyamide 6,6 with multiwalled carbon nanotubes (MWNT) in formic acid solvent were produced by electrospinning, studying the influence of the process variables (as polymer concentration in the solution, electrical field and functionalization of MWNT) in the fiber morphology and diameter.
Estudo sobre o mecanismo de reações de hidrogenação em complexos do tipo [RuCl2(P)2(N)2][(P)2= mono ou bifosfina; N= piridina ou derivados]
(Universidade Federal de São Carlos, 2010-03-26)
Rodrigues, Claudia
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Batista, Alzir Azevedo
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https://lattes.cnpq.br/6469642481998660
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https://lattes.cnpq.br/8800486122052253
In this study, it was performed synthesis and characterization of the complexes of general formula cis-[RuCl2(PPh3)2(N)2], cis-[RuCl2(PPh3)2(N-N)], trans- [RuCl2(dppb)(N)2], cis-[RuCl2(dppb)(N-N)] and cis-[RuCl2(P-P)(N-N)] [PPh3 = triphenylphosphine, dppb = 1,4-bis(diphenylphosphino)butane, (P-P) = bis(diphenylphosphino)methane, 1,2-bis(diphenylphosphino)ethane and 1,3- bis(diphenylphosphino)propane, N = pyridine (py), 4-picoline (4-pic), 4-tertbutilpyridine (4t-Bupy ), 4-vinylpyridine (4-vpy) and 4-phenylpyridine (4-Phpy), N-N = 2,2'-bipyridine (bipy), 1,10-phenanthroline (phen), 4,4'-dimethyl-2,2'-bipyridine (4- Mebipy), di-2-piridilcetona (dpk) and 4,4'-dimethoxy-2,2'-bipyridine (MeO-bipy)]. The characterizations were performed using elemental analysis, conductivity, Infrared spectrometry (IR), NMR 31P {1H}, cyclic voltammetry and differential pulse voltammetry as well as X-ray diffraction, when suitable crystals were obtained. Kinetic studies of substitution of one chloride ligand from the coordination sphere of the complex by a monodentate L ligand (pyridine (py) or 4-picoline (4-pic)) were performed for the complex series of cis-[RuCl2(P-P)(N-N)] in terms of pseudo-first order conditions. The catalytic studies of some of the complex obtained in this work in hydrogenation reactions of cyclohexene were carried out. For the catalytic reactions were used a stainless steel reactor purging with H2 pressure, temperature and agitation were controlled and the analysis of results were performed in a gas chromatograph with detector flame ionization detector (GC-FID) with a capillary column DB5. The catalytic reactions performed with the complex series of [RuCl2(PPh3)2(N)2] showed a high conversion of reactant (cyclohexene - CXE) to product (cyclohexane - CXA) and a high value of TOF (turnover frequency) above 1000 h-1, during 24 hours of reaction. For complex series of [RuCl2(dppb)(N)2] the values of conversion (%) and TOF (h-1) were not as high, but still significant. For the other tested complexes, the values were low and the conversions were not significant.
Síntese e caracterização de nanopartículas de TiO2 pelo método do precursor polimérico
(Universidade Federal de São Carlos, 2010-03-26)
Zoccal, João Victor Marques
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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/7008185222940479
Currently, scientific research in the field of nanotechnology has attracted growing interest because of its several applications, either through design of new products, materials characterization, production and application of structures, devices and systems in the form or function are features of the nanoscale. Thus, there is advancement in technology and industrial application involving nanoparticles, however, raise the concern with control of nanoparticles released into the environment, which is one of the most harmful to human health by causing an increase in the incidence cardio-respiratory disease. Several techniques for production of nanoparticles, and methods of chemical synthesis, have been developed and improved. Among the various methods of chemical synthesis used in the preparation of nanoparticles of titanium dioxide (TiO2), the polymeric precursor method, also called Pechini method, has stood successfully for the issue of nanomaterial. In this context, this work aims to generate in the laboratory a nano material alternative that can be dispersed in a gas stream, forming an aerosol in motion. Furthermore, it should be synthesized in sufficient quantities to use as the test aerosol relatively simple and inexpensive. The technique is primarily on the reaction between citric acid with titanium isopropoxide, obtaining as a product of titanium citrate. After the synthesis of citrate, the addition of ethylene glycol polymerization promoted by a reaction polyesterification, resulting in a polymeric resin clear and viscous. At the end of the process, the resin is burned to remove organic matter and oxidation of the metal cation, forming nanoparticles of TiO2. The powders were characterized by several techniques, among them the thermal analysis, absorption spectroscopy in the infrared, X-ray diffraction (XRD), Raman spectroscopy, UV Visible spectroscopy, method of nitrogen / helium adsorption (method BET), and the Particle Scanning Mobility Sizer (SMPS), which examined the dispersion of the size of nanoparticles as a function of concentration in the gas stream. The results obtained in the characterization techniques showed that the polymeric precursor method was promising in obtaining nano-TiO2. In addition, the SMPS can be observed a high concentration of TiO2 nanoparticles in the range of 15 to 50 nm.