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Análise de pavimentos de edifícios em concreto préfabricado considerando o efeito diafragma
(Universidade Federal de São Carlos, 2012-02-13)
Raymundo, Henrique
;
Carvalho, Roberto Chust
;
https://lattes.cnpq.br/3633394168236221
;
https://lattes.cnpq.br/1811900837627447
One of the main differences in the structures composed of prefabricated elements of the conventional structures (cast in situ) refers to the way of how structural elements are connected together. The operation of such links is essential to perform an accurate analysis of stability and removed from these buildings. A place where the connection is very important in verifying the structural behavior is among the cellular elements of the slab. In a conventional structure, usually made of solid slabs for floors, it is observed that the behavior of slabs have a great influence on the distribution of efforts arising from actions horizontal resistance between the porch and, consequently, the stability of the same. This phenomenon, defined as a rigid diaphragm, can also be found in precast buildings, with floors composed of hollow core slabs. In order to verify the necessity of including some details of connection between the slab elements (joints between the slabs and among other things) will be proposed in this paper the analysis of five structures with different characteristics, considering the different possibilities of bracing and disposal of prefabricated slabs in the floor. Consideration will be given the difference in the distribution efforts of the pavements, considering the application of shear walls and gateways, as well as the provision of slabs parallel and perpendicular to side action. The interference of the cover structure will also be analyzed in a number of examples. From a modeling specific to the floors of these buildings and different situations with different levels of horizontal actions, one can determine the stresses at specific points of the same, thus indicating the types of reinforcements to be willing to actually floors act as a diaphragm. Finally, we intend to discuss the organization of prefabricated elements interfere in the distribution of efforts on the pavement (joints between the slab elements), based on different amounts of reinforcing bars of each type of pavement structure will require.
Compostos com potencial alelopático em Aristolochia esperanzae O. Kuntze
(Universidade Federal de São Carlos, 2012-02-13)
Jatoba, Luciana de Jesus
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Perez, Sonia Cristina Juliano Gualtieri de Andrade
;
https://lattes.cnpq.br/9973185407856723
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https://lattes.cnpq.br/1762622258880441
ABSTRACT Allelopathy is defined as any process involving secondary metabolites that influence the growth and development of natural and cultivated systems. Plants of the Aristolochia genus are known for their use in traditional medicine, but few studies have been conducted on the ecological importance of their secondary compounds and their possible application in agriculture. This study aimed at the isolation, characterization and evaluation of the allelopathic activity of A. esperanzae secondary metabolites. Extraction, bioassay-guided isolation, spectroscopic and spectrometric analysis of the isolated compounds was carried out. The phytotoxic activity of the active extracts from A. esperanzae different organs on the development of species of cultivated crops and weeds, and of the active semipurified sample in the initial growth of Triticum aestivum L. (wheat) was evaluated. The EtOAc extracts of A. esperanzae mature leaves and roots showed phytotoxic activity similar to the herbicide used as control over the weed species. Biossayguided isolation of compounds with allelopathic activity from mature leaves of A. esperanzae has led to the isolation of three isomeric compounds with mass fragments with m/z 321 Da and 161 Da, and ultraviolet absorption at 234 nm and between 286 nm and 287 nm. Analysis by 1D- and 2D-NMR of one of these compounds allowed to stabilish its partial structure. The semi-purified ISO sample, obtained from A. esperanzae mature leaves and composed mainly by the isomeric mixture isolated, showed allelopathic activity on the early development of wheat, with inhibition of root development and formation of necrotic abnormalities over the shoots of these seedlings, with hormetic behavior. The activity of the compounds present in the ISO fraction showed to be different from that presented by the commercial herbicide, and may lead to the development of bioherbicides..
Avaliação do consumo de bactérias pelo zooplâncton em um reservatório eutrófico raso (Reservatório do Monjolinho São Carlos SP)
(Universidade Federal de São Carlos, 2012-02-13)
Hisatugo, Karina Ferreira
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Seleghim, Mirna Helena Regali
;
https://lattes.cnpq.br/5998337634888263
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https://lattes.cnpq.br/6799589581281644
Bacteria, found in terrestrial and aquatic environments, besides their important role in organic matter decomposition and nutrient cycling, are a food source for organisms of the higher trophic levels in the food chain, such as protozooplanktonic and metazooplanktonic organisms. This study aimed to evaluate the relative importance of protozooplanktonic (ciliates and heterotrophic nanoflagellates) and metazooplanktonic organisms (rotifers, cladocerans and copepods) as bacterial consumers throughout a year, which included a rainy and a dry season, in a eutrophic environment (Monjolinho reservoir-SP) by quantifying their ingestion rates. For this purpose, grazing experiments were carried out bimonthly during one year at the sub-surface of a central station of the reservoir using fluorescently labeled bacteria (FLB) dyed with DTAF. In each survey, besides the experiments, limnological (pH, dissolved oxygen, temperature, conductivity, water transparency and nutrients) and biological (chlorophyll-a and phaeophytin concentrations, bacterioplankton, protozooplankton and metazooplankton density) water parameters were also sampled. The heterotrophic nanoflagellates (HNF) showed higher population ingestion rates than the ciliates in dry and rainy seasons, and the HNF smaller than 5μm were the main consumers of bacteria. Among the metazooplanktonic organisms, the rotifers dominated the bacterial ingestion, and the organisms belonging to the genus Filinia and Keratella and to the families Testudinellidae and Brachionidae were the main bacterial consumers. Besides ingesting bacteria, however, protozoa and rotifers population also seemed to be controlled by cladocerans and copepods predation, which, in turn, seemed to be regulated by predation of larger organisms, such as small vertebrates. Thus, the predation control (top-down) occured both on bacterial communities and protozooplanktonic and metazooplanktnic communities and bacteria were regulated both by direct and indirect predation of zooplanktonic population. The resources control (bottom-up) semmed to be higher during the dry season, while in the rainy season bacterial communities were more controlled by predation. The greatest impact on bacterial communities was caused by HNF and ciliates during the rainy season and by HNF and rotifers during the dry one.
Álgebra e formação docente : o que dizem os futuros professores de matemática
(Universidade Federal de São Carlos, 2012-02-13)
Pires, Flávio de Souza
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Sousa, Maria do Carmo de
;
https://lattes.cnpq.br/6637658562543505
;
https://lattes.cnpq.br/4768933864136828
The main object of this study is the analysis of some speeches from a group of future Mathematics teachers from São Carlos, São Paulo State, in relation to algebraic language teaching in Basics Education. The question which led to the development of this research was to investigate what future Mathematics teachers say about the algebraic language in Basics Education based on their past and actual perception of their under graduation course. This qualitative research has foundation in an analytical-descriptive nature. The data collection was carry out by students group participation of Mathematics Degree from São Carlos, São Paulo State, whom had already taken part of an internship program in Basics Education. The data analysis was accomplished through future teachers written statements on a questionnaire disposed into categories. The mixed questionnaire was compounded by three distinct moments: the first involved some aspects concerning Algebra, Algebraic Thought and Algebraic Teaching; the second brought more specifically the movement of teacher s formation; and the third tried to identify the future teachers profile. From these statements we could identify some difficulties with algebra learning from future teachers since Basics Education, which was reinforced along academic life in Higher Education. Besides, we noticed future teachers worry about teaching when they compare scholar and academic algebra to their own learning experiences, indicating dissociation between them.
Produção e caracterização de recobrimentos de aço, empregando a liga amorfizável Fe-Cr-Nb-B
(Universidade Federal de São Carlos, 2012-02-13)
Melle, Ana Karla
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Kiminami, Claudio Shyinti
;
https://lattes.cnpq.br/5443002033733395
;
https://lattes.cnpq.br/5690810293811991
The equipments used to oil flow are submitted in an aggressive environment with the presence of hydrogen sulphide, carbon dioxide and sand, which contribute to corrosion and wear of the surface. To resist of these requests one alternative is the inner coating using materials with high properties of corrosion and wear. Amorphous coatings iron based have good prospects for this application. These alloys, beyond high properties, are low cost system and, therefore, they are viable economically. In this context, the aim of this work is the production and the characterization of coatings, using the amorphous alloy Fe60Cr8Nb8B24 (%at), with special focus on hardness and wear properties. Initially, preliminary studies were made for the evaluation of glass forming ability for selected composition and the influence of impurities on this behavior. The second step of this work was the production of coatings through two different routes. The first was thermal spraying process LVOF (low velocity oxygen fuel), with utilization of two distinct raw materials: (i) amorphous powders produced by atomization and (ii) amorphous powders made by high energy milling. In the other route, coatings were manufactured by spray forming process using prelayer of nickel alloys, whose aim was to allow the adhesion of particles on the substrate. All coatings produced were characterized using X-ray diffraction (XRD), differential scanning calorimetry (DSC), scanning electron microscopy (SEM), wear and hardness tests and porosity and oxygen content measurements. The results shown the feasibility of production of amorphous coatings by the two routes analyzed, with interesting properties when compared to conventional materials.
Estrutura da comunidade microbiana e a importância da bacterivoria por protozoários em uma represa subtropical (Represa do Lobo, SP, Brasil)
(Universidade Federal de São Carlos, 2012-02-13)
Mansano, Adrislaine da Silva
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Seleghim, Mirna Helena Regali
;
https://lattes.cnpq.br/5998337634888263
;
https://lattes.cnpq.br/0101649577482109
Planktonic bacteria play important role in the organic matter decomposition, nutrient cycling and as food for organisms of higher trophic levels such as flagellates and ciliates, thus representing fundamental components in planktonic food webs. This study analyzed the microbial community structure and evaluated the importance of heterotrophic nanoflagellates (HNF) and ciliates bacterivory in a subtropical environment predominantly mesotrophic (Lobo-Broa reservoir, Brazil) by the quantification of their ingestion rates during one year period. The in situ experiments using fluorescently labelled bacteria (FLB) were conducted on the surface of two sampling points that have different trophic degrees. In parallel, physical, chemical and biological water variables were also evaluated. The ciliates showed a higher specific ingestion rate of bacteria (3,3 x 103 bact ind-1 h-1) than HNF (79,7 bact ind-1 h-1) due to differences in size and food acquisition among the two protozoans. The ingestion rates for both ciliates and HNF were always higher in the point 2 (P2) probably due to the higher water temperatures, which accelerate the protozoans metabolism, and higher bacterial densities. Concerning total protozoan bacterivory, the HNF populations had the greatest grazing impact (60%) on the reservoir bacterial community, especially the HNF smaller than 5 μm. The data showed that HNF grazing, in addition to regulation the bacteria abundance, probably also induced changes in the bacterial community structure, such as increasing bacterial filaments numbers and size. The ciliates contributed significantly to the bacterivory, especially in P2, where high densities and ingestion rates were verified. The main ciliate consumers of bacteria were from Spirotrichea, Peritrichia, Haptoria and Scuticociliatia groups. The bottom-up control was more important in the dry season and the top-down control was more important in the rainy one. Thus, in an annual basis, the resource availability and protozoan predation are equally important to the bacterial abundance regulation in the Lobo reservoir.
Contribuições do curso de educação musical a distância da UFSCar nas percepções de licenciandos-já-professores
(Universidade Federal de São Carlos, 2012-02-14)
Santos, Terence Peixoto dos
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Reali, Aline Maria de Medeiros Rodrigues
;
https://lattes.cnpq.br/6923273596591069
In face of the technological evolution lived by the nowadays society, which allowed the emergence of the on-line distance education (via the internet), it has occurred over the last years in Brazil a constant growth of distance teacher education, with graduation courses that rely on large part of its development being realized through on-line activities. This growth has also relied on contributions from the Ministry of Education through programs as the Brazil Open University (UAB), for example. It is considering this scenario that it was sought to explore these new environments of formation and investigate what contributions a distance formation course brings to students that already work as music teachers. Therefore, it started from the characterization and analysis of experiences and learnings that the students-alreadyteachers pointed out as significatives in the Music Education Licentiate course at a distance of UFSCar, also seeking to relate those experiences and learnings with the categories of the knowledge base for teaching (SHULMAN, 1986, 1987; MIZUKAMI, 2004). It was applied an on-line questionnaire with the students-already-teachers who consented their participation in the research, and it was sought to reach the objectives proposed by means of an inductive analysis of the answers. The research had its methodology defined based on the principles of the qualitative research, and was characterized as being of descriptive-analytical nature. The results revealed that even already possessing large experience in music teaching, the studentsalready- teachers affirmed that the distance graduation course contributed in several aspects, being possible to identify contributions to with their content knowledge, pedagogical content knowledge and general pedagogical knowledge, just as general contributions related to distance education, learning of technological resources, personal organization, incentive for research, among others. It was finalized with the certainty that the distance education presents great possibilities and a lot of potential for teacher education and for education, and that much remains to be researched and understood in this field.
Adaptação do software wiki para informatização da documentação do sistema de gestão da qualidade padrão ISO 9001
(Universidade Federal de São Carlos, 2012-02-14)
Costal, Graziele Cristina Silveira Zerbini
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Martins, Roberto Antonio
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https://lattes.cnpq.br/3518820028045730
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https://lattes.cnpq.br/3953457646139498
Generally, the documentation in compliance with ISO 9001 requirements is a complex task and source of excessive bureaucracy. As a result, the attention that documentation requires can blur the benefits in implementing the standard. In order to overcome that obstacle, the wiki software can be used as an alternative to documentation computerization. Therefore, the objective was to adapt wiki software to computerize the documentation of a ISO 9001 Quality Management System. The method to achieve this goal was to develop a prototype based on wiki (named WikiQMS) with features involving the storage, creation, revision and control of quality documents. Still in the development phase, the prototype was evaluated by an Expert Panel in order to collect their assessments and ideas to improve the prototype. Finally, the WikiQMS was validated and deployed by a junior enterprise Unifei Jr. The result is a wiki prototype that complies with minimum requirements of Quality Management System documentation. The WikiQMS also has many of the Web 2.0 advantages like collaborative editing, collective authorship, accessibility and ease of use, providing a proper environment to documents continuous improvement.
QTLs associados com emocionalidade em fêmeas pós-parto de camundongos LG/J x SM/J
(Universidade Federal de São Carlos, 2012-02-14)
Monte, Bruno Gabriel Oliveira do
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Peripato, Andréa Cristina
;
https://lattes.cnpq.br/0657713343451089
In mammals, newborns need parental care, mostly maternal care, to succeed in development. Mother emotionality may affect development at initial stages or even emotionality of the offspring in adulthood. In the present study we investigate emotionality, in maternal period, by performing the open field test in mice females from SM/J, LG/J inbred lines and generations F1 and F2 from this intercross. F2 females were also tested in nonmaternal phase. We investigate if F2 females emotionality was associated with variation in weight gain and offspring viability. Finally, we perform QTLs analysis (Quantitative Trait Loci) aiming to study genetic architecture of emotionality at postpartum phase. Ethological analysis indicates that LG/J females seem to have higher level of anxiety when compared to SM/J females. F1 and F2 generations did not show significant differences in most of the phenotypes analyzed. In the contrast between maternal and non-maternal phases of F2 females, it seems females were less anxious in non-maternal phase. In the relationship between anxiety and weight gain among F2 females we observed that several ethological data show significant association with weight gain in some period of life of these females. However, the ethological variations do not seem to interfere in the offspring survival. QTL analysis revealed 11 individual QTLs associated to the phenotypes grooming, immobility, activity at center, and motor activity, that accounts between 5 and 9% of emotionality variation. Beside individual QTLs, we found a total of 88 epistatic QTLs involving the five evaluated phenotypes that together with the individual QTLs explain 24 to 53% of emotionality variation in postpartum females. The present study allowed the identification of putative candidate genes, as well as their relative size effects and patterns of gene action affecting mice emotionality. These results reveal that genetic architecture of emotionality of LG/J x SM/J dams is complex, since indicate the existence of many genes, including the interaction among them in a complex network of epistasis. Besides the genetic basis, is worth noted that environment also have a important impact in emotions through epigenetic mechanisms.
Teores dos elementos químicos essenciais e tóxicos na rastreabilidade da carne bovina
(Universidade Federal de São Carlos, 2012-02-15)
Gromboni, Caio Fernando
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Nogueira, Ana Rita de Araújo
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https://lattes.cnpq.br/7034773971317045
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https://lattes.cnpq.br/3094371391359214
The objective of this work was to develop methodologies for the determination of inorganic constituents in meat sample and the study of correlations between samples with chemical elements profile, especially Nelore samples of project BifeQuali aimed at improving the quality of Brazilian meat. Three different strategies for sample preparation, basic extraction, acid extraction and microwave assisted acid digestion were optimized and evaluated, by using bovine liver certified reference material (NIST 1577b), and the decomposition assisted by microwave radiation chosen for the decomposition of 650 samples used in this work. For the measurements of chemical elements, mass spectrometry and optical emission inductively coupled argon plasma (ICP OES and ICP-MS, respectively) were used. The chemical elements quantified by ICP-MS were V, Mn, As, Co, Ni, Mo, Cd, Pb, Cr, Se and Fe, by ICP OES were Ca, K, Mg, Na, P, S and Zn. The use of internal standard (Sc, Y and Bi) contributed to the accuracy and precision of measurements. For principal component analysis (PCA) was developed a worksheet to perform the spectral scanning, monitoring 250 wavelength from 167 to 770 nm using ICP OES. The results showed that the crop that is bred proved to be an important variable, forming clusters corresponds to the two crops analyzed, which indicates that climatic factors affect the profile of chemical elements and the quality of nutrition. Moreover, the place of confinement is also presented as an important variable, showing the grouping according to the place where it was confined. Through PCA and analysis using SAS software was possible to observe the correlation between Na and K with the tenderness, and the higher the concentration of these, the lower the shear force, and the higher the tenderness
Gestão da informação e inteligência competitiva em empresas de biotecnologia do Brasil
(Universidade Federal de São Carlos, 2012-02-15)
Oliveira, Maria Fernanda de
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Hoffmann, Wanda Aparecida Machado
;
https://lattes.cnpq.br/7609135667093837
;
https://lattes.cnpq.br/6511977715237485
Through the perception of the value and potential of Biotechnology for Brazil and the lack of studies concerning politics, economy and social affairs in this area, this research has the intention of studying the Biotechnology companies from the point of view of their information management and relationship with Financiadora de Estudos e Projetos (FINEP), major sponsor, based in the hypothesis that there might be some difference between companies that receive and companies that do not receive financial resources from FINEP regarding information and market position. The methodology applied can be defined as descriptive and exploratory, with quality and quantity analysis. The data was collected through the organization of secondary information and research in specific literature and official web sites, content analysis form and a questionnaire applied via websurvey to 52 biotechnology companies set as statistic sample. The analysis was based in simple statistic, reflected average and official announcements and free answers checking. The results obtained from the Brazilian biotechnology companies were in general geographic location and legal nature. Regarding the companies taken as sample, the results were: the companies managers graduation; geographic market comprehended by these companies; business size; their relationship with FINEP; identified obstacles to their development and information management uses and competitive intelligence executed. Besides these results, there is a resumed analysis over the FINEP official announcements with the identification of their main characteristics. The main conclusions shows that the FINEP official announcements have clear structure about the necessary items and means of evaluations applied, as well as a schedule for all the process. The FINEP and Non-FINEP companies have similar practices when dealing with information, including informal and non-coordinated actions. This reality can be one of the reasons that colaborate to a difficulty in elaborating proposals to FINEP for there is lack of good and appropriate information to develop adequate proposals. However, it could be noticed that the competition among the biotechnology companies is high, what tends to be linked to a market highly focused in innovation. Thus, theoretical constructions were integrated with the information obtained with the research, generating a simplified model of information management with recommendations looking forward to structuring the actions involving the informational practice in companies. It is expected that the results presented can strenghten the data collection of the companies as well as the use of information, promoting better decisions about FINEP and some perceptions to contribute the elaboration of official announcements to this area.
Racionalidade instrumental, competitividade e individualismo de estudantes universitários
(Universidade Federal de São Carlos, 2012-02-15)
Rodrigues, Silvana Terume Koshikene
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Silva, Eduardo Pinto e
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https://lattes.cnpq.br/3492708361349827
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https://lattes.cnpq.br/2070163847328362
This study aimed to understand the meaning and motivation that exist in student participation in various extracurricular activities in public universities, particularly in undergraduate research and student organizations. The degree course chosen for this research was Electrical Engineering at Unicamp. A questionnaire was used, which was answered by 111 students, and in a second step, semi-structured interviews were conducted with 13 of these students. The topics covered in the interviews were: life trajectory; education in public universities; undergraduate research and student movements, focusing on the action of the Centro Acadêmico (CA) and the Diretório Central dos Estudantes (DCE). Other issues were a result of these themes, like the academic performance coefficient and the práticas in other student organizations, like Empresa Júnior, Atlética, Trote da Cidadania, Mercado de Trabalho em Engenharia and Solidare. The discussed analysis categories were: formative trajectory and life project; the meaning of the public university and the confluences with the life project; and the meaning of the student movement and different interpretations of student participation. The analysis was based on concepts of alienation, surplus-value, use-value and exchange-value and relations of production, proposed by Marx, and of alienation, estrangement, suspension, subjectivity, intentionality, teleological pose, possibility and alternative, proposed by Lukács. From the reports of students, one could note the competitiveness and individualism found at the university life, always in the midst of many contradictions. It is concluded that the meaning attributed to student participation in extracurricular activities, permeated by instrumental rationality of this universiy life, rests predominantly on pragmatism and utilitarianism, despite the occasional moments of resistance.
Percepções de infância de crianças negras por professoras de educação infantil
(Universidade Federal de São Carlos, 2012-02-15)
Souza, Ellen de Lima
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Silva, Petronilha Beatriz Gonçalves e
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https://lattes.cnpq.br/2996966307456495
This study aimed to understand that childhood perceptions of black children are unveiled in the process of childhood education teachers. To this end, I present a brief reflection to contextualize my training black woman activist, professor of Early Childhood Education and researcher. Following aboard a history on the establishment of early childhood education affects a federal university in which research collaborators are working in recent years and has sought to develop a work to combat the distortions and inequalities experienced by black. The theoretical references were prepared from the position of rethinking and combat situations that marginalize and disqualify in this case black children, always from the guiding question: "What childhood perceptions of black children reveal kindergarten teachers from their experiences". References are presented in the theoretical understandings and insights into: totality, perceptions, horizon, early childhood education, experience, childhood education teachers, coloniality, children and childhood. The methodological approach was built with help and inspiration in the Phenomenology of the African philosophies. So I relied on three collaborators who are experienced teachers childhood education, they all have more than fifteen years of experience and proven commitment to the education of ethnic-racial relations. Data were collected through in-depth conversations, which were identified as the meanings and themes unfold the same units that are grouped in dimensions. Data analysis revealed the dimensions: the time a former, former to child education, experiences his own childhood, childhood black - deny and doubt, this black child, missing, racialized perceptions and feelings, and finally, black marks and white markings. That reveal the training of teachers is an ongoing process and as they learned the techniques of education for ethnic-racial relations, but also realize the childhood of black children stereotypically and Eurocentric. In the final considerations introduce the concept of time to educate and racial-ethnic relations, drawing some insights about the training courses for teachers, the specificities of early childhood education and questions about childhood understandings grounded in Eurocentric values. In this chapter, I highlight that black children who are the lead teachers to seek knowledge about black / as, however, of black children is perpetuated as fragments distorted by an atmosphere of racism and inequality.
Propriedades magnéticas de nanofios de cobalto autoformados por deposição à laser pulsado
(Universidade Federal de São Carlos, 2012-02-15)
Muniz, Pedro Schio de Noronha
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Oliveira, Adilson Jesus Aparecido de
;
https://lattes.cnpq.br/4640148190073166
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https://lattes.cnpq.br/4464937635959170
Le sujet de cette thèse est l étude de nanofils de cobalt dans une matrice d oxyde de cérium (CeO2) épitaxiée sur SrTiO3(001). L auto-assemblage de nanofils a été mis en évidence lors de la croissance de couches minces de CeO2 fortement dopées au cobalt par ablation laser pulsée. Le caractère métallique du cobalt a été vérifié par des mesures d absorption X au seuil K du cobalt réalisées au synchrotron. La formation de nanofils a été mise en évidence par des études de microscopie électronique en transmission en mode haute résolution et en mode dénergie filtrée. Ces études combinées montrent la formation de fils métalliques de Co dans la matrice, orientés le long de la direction de croissance, de longueur limitée par l épaisseur de la couche et de diamètre dans la gamme 3-7 nm. Ces nanofils constituent des systèmes modèles en nanomagnétisme. Deux assembles de fils (diamètre 3 nm et 5 nm) ont été étudiées en détail. La structure interne des fils a été déterminée par microscopie électronique et le renversement de l aimantation au moyen de mesures magnétiques statiques et dynamiques. L anisotropie magnétique de ces systèmes a été sondée par résonance ferromagnétique. Ces mesures et leurs interprétations ont permis de mettre en évidence la localisation du renversement de l aimantation dans les fils. Ce phénomne de localisation a été corrélé à la structure interne des fils, plus précisément à l existence de grains hexagonaux au sein desquels l anisotropie magnétocristalline est en compétition avec l anisotropie de forme. L ensemble de ces résultats a permis de corréler le comportement magnétique à la structure interne réelle de ces objets.
Equações elípticas singulares envolvendo o expoente crítico de Caffarelli-Kohn-Nirenberg e funções peso mudando de sinal
(Universidade Federal de São Carlos, 2012-02-15)
Guimarães, Mateus Balbino
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Rodrigues, Rodrigo da Silva
;
https://lattes.cnpq.br/9606661651573155
;
https://lattes.cnpq.br/2453670728817949
In this work we will study the existence of nonnegative nontrivial weak solutions to singular elliptic equations involving the critical Caffarelli-Kohn- Nirenberg exponent and sign-changing functions. For this purpose, we will make use of the variational method and its classical results as the Mountain Pass Theorem and the Ekeland’s Variational Principle. We also will use the well known Nehari manifold.
Infância, Experiência e Linguagem em Walter Benjamin: a indústria cultural e as implicações pedagógicas do empobrecimento da experiência formativa
(Universidade Federal de São Carlos, 2012-02-15)
Pacífico, Marsiel
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Gomes, Luiz Roberto
;
https://lattes.cnpq.br/4768579559449929
;
https://lattes.cnpq.br/0433875706735815
According to studies developed by the Critical Theory of Society, particularly Theodor Theodor W. Adorno (1984, 1992, 1994, 1995, 2002, 2010), Max Horkheimer (1984, 1980) and Walter Benjamin (1970, 1984, 1985, 1987, 1989, 1992), the proliferation of the apparatus of the culture industry becomes, gradually, the formative experience increasingly scarce and superficial. The society of information is the same that nevertheless, imposes on its subject a condition of semi-formation to expropriate them the signs of interaction with the world, especially in the establishment of a form of instrumental language. In infancy, the formatting of the bodies through the school subject, which ignores the subjective forms of expression of the child, supports with the gradual curtailment of the possibilities of human emancipation. This research aimed to understand how multiple languages in childhood are decoded in the school environment as an unruly act, and to be repaired by formatting the children's bodies, so this practice relates to a semi-formative educational model.
Produção enxuta e teoria das restrições : proposta de um método para implantação conjunta na indústria de bens de capital sob encomenda
(Universidade Federal de São Carlos, 2012-02-15)
Votto, Rodrigo Goulart
;
Fernandes, Flavio Cesar Faria
Over the years, the task of developing and managing production systems has become increasingly complex and, currently, to face the changing customer demands and global competition, managers have the difficult task of combining the efficiency of mass production with customization of pre-industrial craft production era. In this context, the Engineering to Order Capital Goods Industry, exposed to a very adverse market conditions such as high cyclical instability of demand for its products, which depends exclusively on the economy expansion moments, causing, therefore, longer cycles of fluctuation demand with long periods of stagnation followed by periods of high demand, have sought for modern production management strategies, already consolidated in more dynamic segments of the economy, such as lean production and the theory of constraints, to improve production flow and minimize the impact inherent in these production systems with high variety and low volume production, high levels of work-in-process, functional production layouts, high varied workloads, excess of materials handling, etc. This paper studies the Engineering to Order Capital Goods Industry, especially large capital goods, also known as Large Assemblies production systems, aiming to propose a method of joint implementation of lean principles and theory of constraints to simplify the material and information flow, propose the use of suitable SCO (ordering systems) and reduce production lead time in this environment.
Espectroscopia Mössbauer : condições experimentais de aquisição e estocagem multicanal para a análise numérica de dados com adequação de resolução espectral
(Universidade Federal de São Carlos, 2012-02-15)
Shigeyosi, Willian Takemitsu
;
Souza, Sylvio Dionysio de
;
https://lattes.cnpq.br/9114778666084317
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https://lattes.cnpq.br/5442217738319985
The objective of this work is to examine the use of Mossbauer spectroscopy in two aspects: the data acquisition, using four different setups and their analysis, comparing three different fittings programs. Concerning to acquisition, we showed that the adaptation of the Ortec MCS-32 system acquisition, to use not just 512 channels but as well 1024, 2048 and 4096 channels can improve the spectra quality. However, the time acquisition increases, proportionally to the increase of channels number. Four different samples were used in these tests, whose data were acquired using 512, 1024, 2048 and 4096 channels. The first and second samples analyzed, were two clay from Sta. Gertrudes region in São Paulo´s state -BR which had been treated in different conditions. Although the spectra resolution was better, in this case, we showed that the results quality are similar, independently of the channels number. The third one was pellet of iron ore, produced by Cia. Vale do Rio Doce . In this case, the use of 2048 channels data was suitable to identify a structure, not observed when less channels were used. It was propitiate as well by the fitting through the WinNormos for Igor. At last, we re-analyzed some spectra, acquired using 512 channels, from a previous study of our research group, on the AISI 316L stainless steel, applying the WinNormos for Igor. The spectra were fitted using the site plus field distribution model , conducting to better identification of the phases and their percent in the samples. The study and comparison of the three PC fitting programs showed that the WinNormos for Igor, is the most appropriate because its use is very simple, and permits much more flexibility on the fittings, making possible distribution on the different sensible parameters on the function used in the fitting.
Repertório funcional de crianças com paralisia cerebral : a perspectiva de cuidadores e profissionais
(Universidade Federal de São Carlos, 2012-02-15)
Oliveira, Alyne Kalyane Câmara de
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Matsukura, Thelma Simões
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https://lattes.cnpq.br/2278152516658626
The cerebral palsy (CP) due to a non-progressive lesion in the immature brain presents neuromotor impairments and disabilities associated who, allied with contextual factors such as task demands, environmental characteristics and attitudes of family members, can lead to impaired functional performance and the independence of children. Regarding to the actions of family members about the stimuli and expectation relating to children with CP, some studies reported differences between the assessment of family caregiver and the professional responsible for the children treatment and little is known about this difference of perception, being the understanding in the literature concerning aspects related to the way of thinking and acting of family members, still limited. This study aims to verify the agreement between the profile of functionality of children with CP reported by caregivers and rehabilitation professionals in the areas of self-care, mobility, social function and to identify variables related to the caregiver, child and environment that were associated with such agreement. We tested two hypotheses: caregivers and rehabilitation professionals disagree about the typical functional repertoire of the child with CP; and there are variables of the caregiver, child and environment, which may affect the assessment of caregivers in relation to the functional repertoire of his children, who are present when there is disagreement on this score between caregivers and professionals. The study included 50 children with CP aged from 3 to 7.5 years, their primary caregivers of 50 children with CP and 25 rehabilitation professionals, physiotherapists and occupational therapists, linked to six health institutions from the inside the State of São Paulo. The instruments Lipp´s Inventory of Stress Symptoms in Adults (ISSL), Social Support Questionnaire (SSQ), Gross Motor Function Classification System for Cerebral Palsy (GMFCS) and Pediatric Evaluation of Disability Inventory (PEDI) were used, beyond a form identifying the participants. The data were analyzed from the spreadsheets of each instrument and descriptive and inferential statistical analysis, and for the correlation 9 analysis was used nonparametric Spearman test and for the remaining analyzes, the Quisquare, Fisher s Exact, Mann-Whitney test, Kruskal-Wallis and Odds-Ratio. General Strong correlations were found, indicating agreement between the profile of functionality reported by caregivers and professionals, mainly in relation to functional abilities of children and caregivers support needed to the children perform the functional activities, with less agreement on changes of the environment that children use routinely. The relevance of correlations was influenced by factors such as: caregiver's marital status, family income, stress symptoms, professional guidance received regarding the activities of daily living of the child, caregiver time spent with the child and the level motor function of the child. Discusses that part of results does not support one of hypothesis of the research by distancing themselves from notes of literature, which indicate a convergence between the assessments of professional and caregivers, in the environment family and therapeutic, respectively, and a similarity of functional repertoire of children with CP in different contexts investigated, at same time as part of the results confirms the other hypothesis of study, when identifying factors that may explain the level of agreement between caregivers and professionals, configured as variables in this process. It is considered that, the present study may contribute by adding to the knowledge produced in the field, highlighting the influence of variables related to the assessment of caregivers regarding to functionality of the child with CP and interventions of occupational therapists and other professionals to be proposed with children and families in their developmental context.
Manejo da mancha preta dos citros através da utilização de agentes de controle biológico
(Universidade Federal de São Carlos, 2012-02-16)
Guimarães, Christiano Grëgio
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Kupper, Katia Cristina
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https://lattes.cnpq.br/7900622063392740
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https://lattes.cnpq.br/5987557101307019
The citrus industry faces serious problems represented by diseases that reduce the productivity and depreciate the fruits that give the appearance thereof. Among these diseases the citrus black spot caused by Guignardia citricarpa is one of the most important. As the predominant control of this disease is related to the chemical application, the financial costs, environmental and public health of these applications, as well as the increasing restrictions on the presence of residues in fresh fruits, and the possibility of emergence of resistant strains of pathogens to fungicides, it is necessary to study new control alternatives. Therefore, this work aimed to investigate the use of biocontrol agents, under field conditions, by applications of Bacillus subtilis, Trichoderma spp., uréia e combinação dos produtos comerciais Soil-Set® + Compostaid® on the citrus leaves that fallen to the ground, in order to reduce the production of ascospores directly and, indirectly, by acceleration of the decomposition of citrus leaves. The results of this work showed the viability of such applications as a help during the disease management to control of citrus black spot.