Browsing by Issue Date, starting with "2013-03-28"
Now showing 1 - 20 of 18146
- Results Per Page
- Sort Options
Item type:Item, Histórico familiar de mulheres encarceradas: fatores de risco e proteção para os filhos(Universidade Federal de São Carlos, 2013-03-28) ;Ormeño, Gabriela Isabel Reyes ;Williams, Lúcia Cavalcanti de Albuquerque ;https://lattes.cnpq.br/6962646759651464https://lattes.cnpq.br/9293121890121178This dissertation was developed in the form a group of scientific papers which are interconnected in order to describe the main risk and protective factors experienced by incarcerated mothers and their children. Initially there was a systematic review of the Brazilian literature of dissertations, thesis and papers, with the theme of incarcerated women, indicating lack of continuity of studies and the need for intervention programs with greater methodological rigor involving the women and families. Secondly e reviewed the Brazilian and international literature on main characteristics of children of incarcerated womem, signaling the need for systematic research in the context of primary prevention for these children. The history of violence experienced by these women in childhood and adulthood, found the occurrence of child maltreatment, high rate of attempted suicide, intimate partner and violence victimization, a high similarity of Brazilian with the data described in the international literature. Major traumatic situations described by incarcerated women with respect to their children, indicate thus these children were exposed to intimate partner violence, and child abuse suffered as a form of discipline. Incarcerated mothers maintained ties with their children through letters or visits from their offspring to care for their children after serving their sentences. The birthrate in the mother lives of these women included a large number of pregnancies, and children, as well as lack of family planning, pointing to the neglect from the Health systems and the prison in understanding the needs experienced by this population. The parenting style received in childhood by their caregivers was also analyzed from the perception of the female prisoners, as well as the parenting style used by themselves with their own children before incarceration, showing the intergenerationality of parenting practices. By analyzing interlinked variables in the lives of incarcerated women such the history of child maltreatment of the women and family violence history we conclude the need for prevention programs to work with women in situation of incarceration, as well as with the children of these women in order to prevent intergenerational violence. It is hoped that this dissertation will subsidy the creation of public policies addressing the many risks by incarceration women and their children.Item type:Item, Estudos estruturais de compostos de telúrio e de docking em catepsinas B, K, L, S(Universidade Federal de São Carlos, 2013-03-28) ;Maganhi, Stella Hernandez ;Schpector, Júlio Zukerman ;https://lattes.cnpq.br/4252331837170383https://lattes.cnpq.br/1720675268286912Cathepsins are lysosomal cysteine proteases responsible for protein turnover in our organism. In non-lysosomal environment they are related to a number of diseases such as cancer, Alzheimer, autoimmune diseases and osteoporosis. Tellurium compounds have proved to be promising therapeutic agents against these diseases due to inhibition of the proteases through the formation of a Te S covalent bond with the sulfur of a catalytic cysteine. In this work the crystal and molecular structures of compounds (ptol)Te[C(H)=C(Cl)Ph]X2 (X = Cl, Br, I), butyldiiodo[(1Z)-(2- iodopent-1-en-yl)-4- tellane and their docking in Catepsine B are described. The results showed that these compounds, whose activity has not been measured, should have an inhibitory activity very similar to that of a known compound with a close structure. Moreover, it is shown that the substitution of a phenyl group for an aliphatic one should not have any influence on the activity of these kind of compounds. Also the structures of a series of dipnones were determined which were used as basis for the molecular modeling of others that could not be crystallized and for the docking studies in catepsins B, K, L and S. The results allowed establishing a model that explains their different inhibitory activities.Item type:Item, Síntese e caracterização de complexos de platina (II) com ligandos fosfínicos e cloroquina : estudo de suas interações com o ADN e avaliação de suas atividades citotóxicas(Universidade Federal de São Carlos, 2013-03-28) ;Villarreal Peña, Wilmer José ;Batista, Alzir Azevedo ;https://lattes.cnpq.br/6469642481998660https://lattes.cnpq.br/6950356730135450In this work were synthesized and characterized complexes of general formule [Pt(P)2Cl2] and [Pt(P)2(CQ)Cl]PF6 (where (P)2= triphenylphosphine (PPh3), 1,3-bis (diphenylphosphino ) propane (dppp), 1,4-bis (diphenylphosphino) butane (dppb), 1,1 '-bis (diphenylphosphino) ferrocene (dppf) and CQ = Chloroquine). The characterization of the complexes was performed by means of elemental analysis, conductivity, absorption spectroscopy in the infrared and UV-Visible regions (IR and UV-Vis), NMR 1H, 13C{1H}, 15N{1H}, 31P{1H}, 195Pt{1H}, cyclic voltammetry and differential pulse, and mass spectrometry (in the case of chloroquine complexes). Also, the interaction of the chloroquine complexes with DNA was evaluated for calculate to the magnitude of the interaction with this important macromolecule, obtaining that the complexes showed interaction constants similar and higher than those presented by CQ and CQDP, and decrease the relative viscosity of DNA. We also evaluated the cytotoxic activity of the chloroquine complexes in the cell lines MCF-7 and MDA-MB-231 (human breast tumor cell lines), DU-145 (the human prostate tumor cell line), A549 (the human lung adenocarcinoma epithelial cell line), V79-4 (the Chinese hamster lung fibroblast cell line), and the L929 (nontumor cell line from mice), showed promissory activity, mainly of the complexes 5 and 8.Item type:Item, Obtenção de estruturas de nanocompósitos poliméricos híbridos condutores(Universidade Federal de São Carlos, 2013-03-28) ;Santos, João Paulo Ferreira ;Bretas, Rosario Elida Suman ;https://lattes.cnpq.br/2805349172281345https://lattes.cnpq.br/1053336670259691In this work, hybrid electrical conductive nanocomposites structures with potential to be applied in conductive and electrostatic dissipative devices were obtained. Such structures were produced by combining two types of nanofiller in a matrix of thermosetting epoxy resin of diglycidyl ether of bisphenol A (DGEBA). The nanofiller were polymeric nanofibers and conductive nanofillers: multi-walled carbon nanotubes (MWCNTs) and metallic copper nanowires (CuNWs). Three different arrangements for obtaining the structures were employed and compared. The starting materials, the electrospun nanofibers and composite structures were characterized morphologically by scanning (SEM) and transmission (TEM) electron microscopy, structurally by X-ray diffraction (XRD) and infrared spectroscopy (FTIR), thermally by differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA), mechanically by mechanical tests of short duration (tensile strength and impact) and electrically by four point probe. The results showed that the production of the structures were successfully done by two routes. In the first route, the fibrous, consisting of layers of polyamide 6 (PA6) nanofibers, were sanduiched with epoxy resin loaded with MWCNT. Such structures exhibit electrical conductivities between 105-1012 (Ωcm) and, therefore, can be used as conductive and electrostatic dissipative devices. In a second route, by the electrospinning technique, nanofibers with embedded CuNWs or MWCNTs were produced. The results show that the nanofiber produced were nonconductive and therefore unsuitable for conduction or dissipation. Then, in a third route, nanofibers mats of PA6/polyaniline (PAni) blend and PA6/MWCNT nanocomposites were subjected to a treatment to promote surface adsorption of MWCNT resulting in conductive nanofibers mats. Such mats have been used for the production of structures. The structures exhibit conductivities in the range of 107 (Ωcm) and better combinations of elasticity modulus and impact resistance.Item type:Item, Exploração da organocatálise na síntese de intermediários de compostos com potencial biológico(Universidade Federal de São Carlos, 2013-03-28) ;Pontes, João Guilherme de Moraes ;Paixão, Márcio Weber ;https://lattes.cnpq.br/3773908504964104https://lattes.cnpq.br/0716145669588194In recent decades the use of small molecules acting as catalyst has emerged as a powerful tool to the synthesis of new molecules which have potential biological application. This new model of catalysis provides others advantages to conventional methods, for example, easy handling and catalyst storage, since in most cases the catalyst are stable compounds to air and moisture; cost, energy and chemical waste reduction. The Organocatalysts can interact with substrates by different modes of activation, one of these, through non-covalent interactions such as hydrogen bond which has been extensively studied employing the following catalysts: ureas, thioureas, guanidines, squaramides and silanediols. Herein we is reported the 1,1-diamine-nitroethylene scaffold as a new class of organocatalyst to be explored in Michael addition reactions, which activate the acceptor in the transition state through hydrogen bonds donation. The relative easy synthesis and handling of these compounds, due no need of inert or anhydrous conditions together with the low cost of raw materials enables this new class as a potential tool to be considered and worked in the area of organocatalysis. The application of theses catalyst in the Michael additions has led to good yields and diastereoisomeric ratio. In this study we characterized the bifunctional organocatalyst using 1D and 2D NMR techniques. The application of this catalyst in Michael reactions with different classes of nucleophiles and nitroolefins, led to the desired products in good reaction yields and d.r.Item type:Item, Estudo da cristalização da sacarose com adição de antissolvente(Universidade Federal de São Carlos, 2013-03-28) ;Mantilla, Hernán Dario Rojas ;Bernardo, Andréhttps://lattes.cnpq.br/5705402824877708In the study of the sucrose crystallization process, the nucleation phenomena and crystalline growth have been evaluated, when the systems were submitted to different solvent and operational conditions. The main objective of the present work was to study the sucrose crystallization process in solution through the partial change of the solvent. This change occurs through studied with the ethanol addition of a second solvent, a compound that reduces the solute solubility, but that is miscible in the first one. The addition of a second solvent generates a high degree of supersaturation, and promotes the formation of crystalline nuclei of smaller size to be used as seeds in industrial processes. Another objective was to study the flowability properties of particle size by determining the Hausner ratio and repose angle that allows relate some variable results obtained by the crystallization of sucrose. With the obtained results, it would be possible to improve the control of the finally properties of the crystalline product, such as crystal size distribution (CSD), crystalline habit, crystalline fluid inclusions and the formation of crystalline polymorphs.Item type:Item, Uma atividade experimental para o estudo de funções no ensino fundamental(Universidade Federal de São Carlos, 2013-03-28) ;Prospero, Matheus de Barros Ramos ;Paterlini, Roberto Ribeiro ;https://lattes.cnpq.br/6240750958932738https://lattes.cnpq.br/5630957744432447Functions represent a very important area of study in mathematics due their wide range of applications in many areas of knowledge. Functions can be approached in concrete and meaningful ways. However, school textbooks often tend to an algebraization of the theme, which hinders students' understanding of the need and importance of studying functions. This work does not focus on formal definitions involved in the teaching of functions. The aim of this work is to present an experiment which allows the development of the concept of functions. The experiment is based on a proposed problem of building a box without a lid using a rectangular sheet of paper, and then calculating its volume. This experiment was carried out in two 8th year classes of a public school in Ribeirao Preto - SP, Brazil. The procedure was carried out successfully and students enjoyed it. This is a low-cost, practical project, feasible to any teacher willing to approach the theme in a practical way.Item type:Item, Concorrência e inovação nos programas de pesquisa da microeconomia Neoclássica e Neoschumpeteriana(Universidade Federal de São Carlos, 2013-03-28) ;Pereira, Tainara Ribeiro ;Diegues Junior, Antonio Carlos ;https://lattes.cnpq.br/0594188577645269 ;https://lattes.cnpq.br/7093976107807561Roselino Júnior, José Eduardo de SallesThe existence of several lines of research permeating the field of microeconomics can be seen by the different approaches from each group of authors. This work presents two of such lines using the methodology of scientific research programs proposed by Lakatos. The lines analyzed were the neoclassical theory and neoschumpeterian (or evolutionary) theory. The main objective is to understand the concepts of competition and innovation under these two perspectives. With the secondary purpose of verify some adherence from the modifications in the protective belt of the research program with the observed reality, it was characterized the technical and institutional context for the theoretical formulation. In parallel with the presentation of the contexts that underlie the creation and modification of research programs, it was possible to infer about the progression of each theory. In the neoclassical case, it was argued that the program is degenerating by the side that concerns its changes, because those changes just to explain the puzzles that motivated them. For the neoschumpeterian theory is argued that the research program appears to be progressive, because it alters the protective belt to encompass new facts. Regarding the prevalence of neoclassical theory for economists, it seems that its mathematical formalization was responsible for bringing more enthusiasts, but with the advance of computational methods, the evolutionary model is also promising in this regard.Item type:Item, Verificação da performance de modelos APARCH assimétricos aplicados a dados financeiros(Universidade Federal de São Carlos, 2013-04-01) ;Gasparini, Daniela Caetano de Souza ;Milan, Luis Aparecidohttps://lattes.cnpq.br/4908545652913892The volatility of financial assets changes over time, indicating the specification of regime change in volatility models. Furthermore, the presence of asymmetry in the returns of the financial market has been recognized in the financial literature of recent decades. In this paper, we present some heteroscedastic models with regime change, considering that the error component of these models follows Skew Laplace distribution, as well as the process of estimating its parameters via maximum likelihood and Bayesian methods.Item type:Item, Guiné-Bissau/África: diretrizes tecnológicas para uma política habitacional sustentável(Universidade Federal de São Carlos, 2013-04-01) ;Seabra, Quintino Augusto Có de ;Silva, Ricardo Siloto da ;https://lattes.cnpq.br/5346985934880710https://lattes.cnpq.br/4064489067516895This research purposed to identify, classify and analyze the technologies and raw materials used in low-income housing, as aid for the definition and implementation of a housing policy that can be incorporated sustainability principles and guidelines. The object of empirical study it's Guinea Bissau, in particular Bissau the main town of the country that is located in West Africa and it has one of the world's lowest Human Development Index HDI . Among the various dimensions that make up sustainability, it was decided to prioritize research in environmental and cultural dimensions, considering the country's social and environmental peculiarities. At the start, warned understanding deeply variables and their parameters that characterize a condition of greater sustainability, always focusing on the specific location. At the same mode, it was made a qualitatively and quantitative survey of technologies and materials usually employed in construction for housing, following, it was held a mutual comparison between those variables, parameters and the information collected about the technologies adopted. Together with the scientific aspect, this research aims also to contribute with technological guidelines for structuring a sustainable housing policy of social interest to Guinea Bissau.Item type:Item, Avaliação do tempo de incubação do fotossensibilizador curcumina em Staphylococcus aureus e Pseudomonas aeruginosa na inativação fotodinâmica(Universidade Federal de São Carlos, 2013-04-02) ;Geralde, Mariana Carreira ;Souza, Clovis Wesley Oliveira de ;https://lattes.cnpq.br/0781683628437007https://lattes.cnpq.br/5271980848300405Photodynamic Therapy (PDT) has been helping medicine in treatment infectious diseases and tumors. PDT's principle is based on a photosensitizer (PS) that is photoactivated by light at specific wavelength which generates reactive oxygen species that induces cell death and/or microorganism inactivation (PDI - photodynamic inactivation). The optimum incubation time of the photosensitizer, whereas the structural and metabolic differences of each microorganism, is important for the more efficient effect of PDI. Curcumin, being a natural PS, has been gaining ground in scientific research and has shown satisfactory results in microbiological control when associated with PDI, but there are no studies on the influence of incubation time of the PS with the bacterial cell. The present study aimed to evaluate the incubation time of curcumin on PS PDI and can therefore assist in determining future research the perfect time to contact the PS in bacteria of different wall compositions: Gram-positive (Staphylococcus aureus) and Gram-negative (Pseudomonas aeruginosa). Samples of microorganisms were cultured in TSB broth (Triptic Soy Broth) and incubated at 37 °C for 24 hours. The PS was solubilized in dimethylsulfoxide (DMSO) to achieve concentrations of 20 mM stock, subsequently diluted to obtain the final concentrations. Light source was used at a wavelength of 460nm, and final dose of 30 J/cm2. After the incubations with the FS and irradiation decimal dilutions of the samples were plated on TSA medium (Triptic Soy Agar) and incubated at 37 °C for 48 hours, and the counts performed. The PDI decreased approximately 7 logs S. aureus at a concentration of 1μM with incubation time of 30 minutes, while for P. aeruginosa was reduced by 2 logs with a maximum concentration of 50 μM with the same incubation time. Tests were conducted where PS withdrawing means before illumination, but the process was not found reductions as those obtained without the procedure. In general, the best incubation time was 30 minutes in all concentrations and for both microorganisms.Item type:Item, Estratégias para gestão de pessoas e economia solidária: o estudo da Cooperativa de Trabalho dos Catadores de Material Reaproveitável de Rio Claro - SP(Universidade Federal de São Carlos, 2013-04-02) ;Lima, Valdemir dos Santos de ;Cordeiro, João Sergio ;https://lattes.cnpq.br/2572864522562875https://lattes.cnpq.br/0057420416096868The performance of the capitalist system, associated with urban areas, has contributed to the growth of solid waste scattered in urban centers of towns and cities, consisting mainly of materials that can be recycled. The generation of waste has assumed proportions that make this issue a major concern of any government, triggering several actions pertaining to the theme. One of the actions taken by the Rio Claro / SP was the creation of a Cooperative Collectors of Recyclable Material - COOPERVIVA, aiming to reduce the environmental impact generated by this waste and ensure an increase in the useful life of the county landfill, strengthening collective work through the Solidarity Economy and actions for Environmental Education. The actions developed by the cooperative have allowed the insertion of new collectors and increasing demand for recyclable waste collected by the cooperative. The need for collective management, aiming at personal development, the process of collective work of the group, the conditions for educated individuals and their relationship with the local government set up the goal of this work, which aims to propose management strategies more effective in daily life of each member, providing them with a work environment in a more differentiated and solidarity in order to provide an economic benefit and social practices with recognition and importance of the work that each member has developed in the city.Item type:Item, Diagnóstico da situação dos resíduos da construção civil na cidade de São Carlos - SP(Universidade Federal de São Carlos, 2013-04-02) ;Röhm, Daniel Gobato ;Röhm, Sergio Antonio ;https://lattes.cnpq.br/7332654261230826https://lattes.cnpq.br/7864868341646931This work intends to present a diagnosis of the current situation of waste management for construction (RCC) on construction sites of construction companies operating in the city of São Carlos, SP, Brazil. For this methodology were applied as questionnaires and interviews with construction companies to the city, with views fetch results related to the stage of implementation of the management of RCC proposal by Brazilian resolution nº. 307 of the National Environment Council. Also data were collected for analysis in the municipal government sector generator. In this paper we present the results of analysis of perception of construction companies studied in relation to the management of RCC in their worksites and scaling parameter generation of RCC by licensed areas for new buildings along the City of Sao Carlos. For this parameter was concluded that San Carlos passed between the years 2009 and 2012, 2,347,694.93 m² of new construction, which reflects tremendous growth of construction in the city over the past four years. However, this table expansion was not accompanied by efficient management of waste produced in the beds, which can be seen by the increase in annual generation from 63,877.76 tonnes in 2009 to 82,413.38 tonnes in 2012.Item type:Item, Aspectos práticos da estimação do modelo de mistura via processo de Dirichlet(Universidade Federal de São Carlos, 2013-04-03) ;Paz, Rosineide Fernando da ;Milan, Luis Aparecidohttps://lattes.cnpq.br/0773010734982168We review the Dirichlet process mixture model and investigate its performance as a classification method. The first aspect considered is its sensibility to the choice of location parameter of the base distribution. The second aspect considers the performance of the model regarding the departure of the parameters of the component distributions. Simulation results with mixture of normal distributions indicate sensibility to location parameters choices, of the base distribution, and good performance even when components with normal distributions differ only in variances. Finally, we apply the method to three data sets.Item type:Item, Do funcionamento discursivo dos pronunciamentos do presidente Lula a trabalhadores: procedimentos de legitimação do dizer político(Universidade Federal de São Carlos, 2013-04-03) ;Pereira, Maísa Ramos ;Piovezani Filho, Carlos Félix ;https://lattes.cnpq.br/1677609008094603https://lattes.cnpq.br/4570938983795878How does contemporary political discourse face a crisis of democracy that destabilizes hallowed phrases of discourse, putting them into question, identifying them as lies and malicious maneuvers? What are the solutions and repair attempts made by the class society to resolve social conflicts and to erase differences and problems inherent in the structure of the capitalist mode of production? Faced with a situation of people s disbelief with their representatives, we can perceive a paradigm shift regarding the speech of the political subjects. In many of the manifestations, the subject enunciates like people , from the same place of the people, to legitimize their discourse supported in a process of building identification relations with their interlocutors. Based on the theory of Discourse Analysis derived from Michel Pêcheux and his group, we interpret procedures for legitimizing the pronouncements of President Luis Inacio Lula da Silva to workers in celebrating events of May 1st (Labor Day in Brazil), during his two mandates (from 2003 to 2010). We chose this methodological approach because of the constant enunciation that Lula would be a president distinct from the others" as a consequence of him being originally from the working-class. We work with the notions of discursive formation, ideology, subject position and spokesman, understanding that all of them are closely correlated and are quite relevant for the analysis of discourse corpora that aim to objectives such as those we intend to achieve at this work. From the analysis of discursive processes we observe: a) how the materiality of linguistic pronouncements of the President legitimizes his political discourse b) if now, as when he was a union leader (CAZARIN, 2005), Lula continues to put himself in the role of a spokesman (Pecheux, 1990) c) What are the spatial and temporal discursive supports that allow the subject to be established as the spokesman of the workers? We assumed that, taking the place of those who cannot or should not speak, Lula, as a spokesperson and the potential negotiator, speaks to the workers, distinguishing and defining himself from his interlocutors due the social position he assumes. The moderation by the identification process (ORLANDI, 1983) is established: the representation is sufficient for the "people" to feel contemplated (ROSAVALLON, 1998).Item type:Item, O político em São Carlos: um estudo das imagens de si no discurso dos candidatos a prefeito das eleições 2008(Universidade Federal de São Carlos, 2013-04-03) ;Carreon, Renata de Oliveira ;Baronas, Roberto Leiser ;https://lattes.cnpq.br/4613001301744682https://lattes.cnpq.br/3874251351469772Le discours politique se consolide comme objet d étude de la Science Politique, tout en étant au coeur du débat dans les Sciences du Langage aussi, surtout à l égard de l Analyse du Discours ancrée aux idées des penseurs français. De nombreuses études sont soigneusement menées au Brésil sous le regard de ce domaine de la Linguistique, et nombreuses études sont penché sur le processus de construction de l image ou d un cadre imagé des candidats aux postes publiques à travers leur discours. Cependant, peu étudient les particularités d'une puissance urbaine université. Notre recherche au niveau du Master se consacre à l analyse de la constituition de l ethos discursif des candidats à la mairie de São Carlos pendant la campagne électorale de 2008. Le but à présent consiste en analyser l élaboration de l image de soi selon les discours et les photos des agents politiques, la définition de la vocalité et de la corporalité du garant et une question s impose : comment toute cette construction imagée se rapporte à la représentation sociale à laquelle l interlocuteur/électeur doit prendre part ? Dans ce propos notre étude fait recours aux principes téoriques et methodologiques des auteurs français tels que Dominique Maingueneau et Patrick Charaudeau, en les applicant au matériel constitué de la parole des trois candidats à maire les plus votés, dans des circonstances énonciatives distinctes. Comme hypothèse de travail nous vérifions comment les candidats cherchent à construire à travers leurs discours euphoriques images d'eux-mêmes. Pour ce faire, s'appliquent à la fois l'ethos dit et montré e l'ethos semiotizé.Item type:Item, Investigação das fases formadas na superfície do aço inoxidável AISI 316L nitretado a plasma(Universidade Federal de São Carlos, 2013-04-03) ;Campos, Marcelo ;Souza, Maristela Olzon Monteiro Dionysio de ;https://lattes.cnpq.br/9452239672967881https://lattes.cnpq.br/0717563036484228The plasma nitriding treatment improves mechanical, tribological and corrosion resistance, due to the formation of a nitrided layer consisting of an iron and chromium nitrides and a phase, with an undefined structure, known as expanded austenite (γN). The layer properties are influenced by the nitriding parameters, and the aim of this thesis is to study the influence of gas nitriding pressure in AISI 316L stainless steel. For this purpose, samples of this material were nitrided during 4 hour at 400 ºC in 80% H2 and 20% N2 atmosphere under variable pressures (3 and 7 Torr). Optical and Scanning Electron Microscopy, Vickers microhardness, cytotoxicity, roughness and wear tests, Mössbauer spectroscopy (MS) and X-ray diffraction (XRD) were used to analyze the mechanical, tribological, structural and potential application as a biomaterial in the nitrided samples. The results showed that the halo´s width, formed due to edge effect in the edge sample region, decreases with pressure increase, while their mechanical and tribological properties are not influenced. In the others samples regions, the layer thickness, surface roughness and mass loss reduction in wear test increased with pressure increase until 6 Torr sample and the surface hardness increased with pressure. MS techniques and the grazing angle XRD showed the same phases formed: γN, ε, α-FeNi and ε-Fe2+XN in all samples and also α"-Fe16N2, δ-Fe2N phase in 5-7 Torr samples. These phases indicated that the iron nitrides are responsible for the increase in surface hardness and coefficient of friction increased, where the reduction of ε phase concentration increases the coefficient value. The XRD fits shows that the most appropriate γN structure is FCC with stacking faults with nitrogen concentration depth distribution. This distribution and structure, explain the anomalous large expansion and position in the (200) plane, respectively. The cytotoxicity test showed that the nitrided did not present any toxic effect. The sample nitrided at 6 Torr showed the best combined nitriding properties.Item type:Item, Mídias, mediações e a questão nuclear: uma proposta de mediação institucional e tecnológica nas aulas de Física no ensino médio(Universidade Federal de São Carlos, 2013-04-03) ;Ferreira, Marcia Alexandra Andrade ;Leodoro, Marcos Pires ;https://lattes.cnpq.br/2929842229198829https://lattes.cnpq.br/9633781995351623In this paper, we defended the school's role as an institutional mediator of the media discourse. For the development of mediations, we proposed the use of traditional media and new Information and Communication Technologies (ICT) in the school environment. The need for institutional mediation of media discourse is due to the importance of the media in the formation of social representations we have about various issues, including on socio-scientific issues and also because these representations are responsible for forming our opinions. But the use of ICTs, specifically social networks of internet, is due to the importance of these new technologies in today's society and its potential for teaching, still little explored in the public schools. The social-scientific issue addressed in this paper is the nuclear issue. The choice of subject was due to his controversial aspect of public and social interest and for it has been widely reported in the media. We argue that, like all socioscientific issues, the nuclear issue should be addressed, at school, from the focus on relationships between Science, Technology, Society and Environment (STSE). We created, in internet, the social network "Thinking Physics" in order to, through the sharing of content, promote the participation of high school students from public schools in the discussion on the nuclear issue, thus contributing to the qualitative improvement of the use that young students make of social networks and to the development of technological mediations. To problematize the nuclear issue, we proposed a discussion of the agreement signed in 2010 between Brazil, Turkey and Iran, and to discuss this issue we used four videos aired by the television media and posted on YouTube. Through social networking students had access to the videos and were able to share their opinions through comments. There was broad participation of students in the social network, even though it was optional. The results show us that it is feasible to develop projects that use computers and internet even when school does not have such technology available to students and teachers. We hope this work will contribute to other teachers develop projects aimed at training students in critical and participatory, based on proposals of mediations of media discourse and thus the social networks of internet can become an effective mediation space technology.Item type:Item, Pequenas frases na mídia eletrônica brasileira : uma leitura discursiva(Universidade Federal de São Carlos, 2013-04-04) ;Bonácio, Daiany ;Baronas, Roberto Leiser ;https://lattes.cnpq.br/4613001301744682https://lattes.cnpq.br/8694816294812088Nowadays, it is common to see small phrases spread in the media which have been removed from their original context and they gained incalculable proportions of movement, being able to (re)create the most diverse discursive events. The current trend, reveals Krieg-Planque (2011), is the fragmentation of short discourses, due to the speed of the narrativization of the facts. The small phrase is a reality that newspapers, websites, social networks help to build when they publish the "phrases of the week", "the best phrases of the year", etc., and that makes us realize that the work of sobreasseveration and / or aforization is in full steam: never the spoken phrases and that they mark some event were so discussed and disseminated. According Maingueneau (2011b), the recent development of a media configuration that associate print media, television, internet, mobile, etc.., increased to an unprecedented level the detachment and the circulation of aforizations. For the author, some reach the state of the pandemic. Thus, for a short period of time, we see to circulate a sentence with a very high frequency in all media of the moment and that occopy a variety of statutes: newspaper titles, sentence at the bottom of the TV screen, etc.. In this thesis, we take as the object of study four small phrases that erupted on stable discursive fields and that, due to the rapid movement engendered, especially the Internet, became to appear in a various discursive fields. We attend a large file consisting of various discoursive genres (advertising, cartoon, humorous, journalistic comments on the net, etc.) and in which circulates notably four small phrases ―ai, se eu te pego‖, ―menos Luiza que está no Canadá‖, ―cala a boca, Galvão‖ and ―vada a bordo, cazzo‖. To account for this enterprise we adopt the Discourse Analysis of French orientation, especially the recents works of Alice Krieg-Planque (2011) and Dominique Maingueneau (2006a; 2006b; 2007; 2008; 2010; 2011a; 2011b; 2012a), reflections tha seek to understand accurately the production, circulation and transformation of small enunciates of political field. Our back question is to argue that, at presente due to the configuration media existing in our society, smalls phrases focus on various discursive fields.Item type:Item, A efetivação dos direitos à saúde pública: uma análise do poder judiciário no Brasil(Universidade Federal de São Carlos, 2013-04-04) ;Carvalho, Adriana Duarte de Souza ;Braga, Maria do Socorro Sousa ;https://lattes.cnpq.br/2311094074614215https://lattes.cnpq.br/1776885491217129The purpose of this doctorate thesis is to understand the achievement of the rights to public health in Brazil through the Judiciary Branch. Our hypothesis is that the constituient political actors in 1987-88 have assigned greater political power to the Judiciary Branch, turning it into a veto player, able to suspend the decisions of local executives and change the legislative status quo. Aiming the accomplishment of this research, we will study the competences of the Judiciary Branch in the constitucions of 1934 e 1946 and, afterwards, we will procede to the analysis os the Annals of the Subcomissions of the Judiciary Branch e of the Public Ministry of the Constituient of 1987-88. Eventually we will evaluate the sentences produced by the Justice Court of São Paulo to understand the content of the decisions made by the judges that managed to make effective the rightsto public health.