Browsing by Issue Date, starting with "2013-03-10"

Filter results by year or month

Now showing 1 - 20 of 18171

Software educacional livre para análise não linear de pórticos planos em estruturas metálicas
(Universidade Federal de São Carlos, 2013-03-10)
Ormonde, Paulo Cavalcante
;
Souza, Alex Sander Clemente de
;
https://lattes.cnpq.br/3572504605209699
;
https://lattes.cnpq.br/1823332342715008
The goal of this work was develop an free educational computation tool that automates the nonlinear geometric analysis (by simple and approximate methods), the design and classification based on displacement for planar frames. The classification is made by simple method (B1 and B2) give in the NBR8800:2008, that define the structures in lower, median and high displacement. The Knowledge of the displacement classification will provide the type of analysis and nonlinearities to consider. The free source code allows the continuation of the project and the emergence of new research related to the topic.The development of this tool with a graphical and iterative interface wrote in Object-Pascal language will turn the analysis process more practical to educational or professional works. The use of this tool in steel structures contents of civil engineer courses and the knowledge of the type of analysis that must be use, from the displacement classification, are the results. Through educational parameters implemented in this computational tool, we hope to contribute to a better dynamic in the disciplines of design of steel structures in civil engineering courses in Brazil.
Avaliação motora em escolares sob parâmetros da CIFCJ : construção de medida e evidências de validade
(Universidade Federal de São Carlos, 2013-03-10)
Alves, Cristiane Paiva
;
Martinez, Claudia Maria Simões
;
https://lattes.cnpq.br/2919350721998869
The ICF-CY has components such as body functions and structures, activities and participation and environmental factors that facilitate a holistic look at the individual's health. Research on measures that operationalize still scarce, having been identified in national and international literature review just such a study. This research aims to contribute towards the area, and their goal was to develop a measurement tool based on the components of the ICF-CY to evaluate the motor performance of children 7 years old.. The theoretical construction of the instrument and its validity evidence were conducted through five stages, namely: the motors mapping exams with the ICF-CY, qualitative evaluation of the Instrument for Motor Evaluation in School - IAM (E), the creation of items, the semantic analysis of the items and construct validity. The tests selected were mapped to the domains of the ICF-CY and their relevance evaluated by six judges; domains that showed concordance index lower than 80% were excluded, and of 39 domains 29 remained. To operationalize the construct was held from the use of the Roadmaps Activities Analysis of the proposed items that contemplate. The construction of the items included the description of evidence and qualifying criteria. Then, we performed a semantic analysis of the instrument; this phase involved the participation of 5 children of 6 years, the lower strata of the population involved items without difficulty. The construct validity was performed by 12 judges and the criteria of relevance of the item to the mark in question were assigned from an agreement of at least 80%, on the representativity of the item in a specific factor. No items were excluded in this phase. Were selected, even, the areas that compose the questionnaires regarding the components structures and body functions and environmental factors. Thus, IAM (E) consists of a questionnaire and a scale with tests motor, comprising all components of the ICF-CY. Despite the lack of studies that guide him a methodology for classification and operationalization of its complexity, the construction of the instrument based on the ICF-CY, complied with the proposed objective. Thus, it was concluded that the theoretical phase of the construction of IAM (E) and proposes to continue the validation study for the use of the instrument can be detected and motor deficits prevent the development of disabilities.
Modelo de regressão de valor extremo para dados agrupados
(Universidade Federal de São Carlos, 2013-03-11)
Santo, Jonatas Silva do Espirito
;
Diniz, Carlos Alberto Ribeiro
;
https://lattes.cnpq.br/3277371897783194
;
https://lattes.cnpq.br/9903742572912763
One of the distributions used to model extremal events is the type I extremevalue distribution (Gumbel distribution). The usual extreme-value regression model requires independent observations. In this work, using generalized linear model (Mc-Cullagh e Nelder, 1989) and generalized estimating equations (Liang e Zeger, 1986), we developed the extreme-value regression model when there are independent clusters formed by dependent variables. The behavior of parameter estimators of the proposed model is studied through Monte Carlo simulations.
Uso da corrente crítica por meio da simulação para o auxílio no processo de planejamento da capacidade em uma fundição
(Universidade Federal de São Carlos, 2013-03-11)
Santos, Fabrício Guermandi dos
;
Politano, Paulo Rogério
It is already known that the productive environment is in constant changing, with new technologies, new systems and theories coming up every day, providing other forms to manage production to comply with inconstant demands and a competitive market. In this context, the capacity planning has an important role for a company, managing resources in a structured way with accurate information, ensuring that market requirements will be fulfilled in terms of delivery, cost and quality. The Critical Chain Method is shown as an alternative to change the way that manufacturing resources has been managed, prioritizing what is really important, avoiding waste of time and financial resources. Therefore, the objective of this work was to elaborate a model of discrete-event simulation to evaluate and compare the use of the principles of critical chain, against the traditional capacity planning method used in a foundry. For this assessment were used performance indicators as accomplishment deadlines, work in process, average lead time, etc., where these after being compared, have shown the proposed method could provide positive results to the environment studied.
Análise do efeito da composição química na secagem de pasta em leito de jorro
(Universidade Federal de São Carlos, 2013-03-11)
Nascimento, Bruna de Souza
;
Freire, José Teixeira
;
https://lattes.cnpq.br/2270677706718167
;
https://lattes.cnpq.br/9084263442212447
In the process of paste drying in spouted bed, the paste is submitted to the system, changes in rheological properties occur, a powder is formed and collected by a cyclone. Currently, various pastes have been tested and their chemical composition may indicate the behavior of the process. When it comes to modeling, many challenges are found, mainly the ones related to the incorporation of the pastes in the models. Therefore, this work was developed in order to obtain more detailed information about the drying process of pastes in a spouted bed, considering the effect of their chemical composition. Based on the effects of the presence of pastes, a hybrid CST / Neural model was verified experimentally to describe the heat and mass transfer phenomena. Besides, a neural model capable of predicting variations in the fluid dynamic behavior of the process was proposed. Drying experiments were carried out with water, homogenized egg, propolis, sweet whey, whole milk, skimmed milk, semi-skimmed milk and low lactose content milk in a spouted bed of cylindrical column of 0.5 m of diameter and 1 m of height, inferior conical base (angle of 60°) with an entrance nozzle of 0.03 m of diameter, top cone (angle of 60°) and outlet diameter of 0.05m. Polyethylene particles of 4.38mm were used as the inert part. During the experiments, changes in pressure drop, inlet air temperature, particle bed temperature at three positions axially from the annular region, outlet temperature, temperature of dry and wet bulb at the cyclone exhaust, as well as the moisture of the powder produced and covering formed on the inert particles were determined. From the information obtained, it is clear that the presence of sugar and fat cause different changes in the behavior of the spouted bed, especially when it comes to relative moisture and pressure drop. Regarding the modeling, the models proposed presented simplicity as for implementation and flexibility to interpolating values. These might be used in the future for other types of pastes by including other input data in the neural network, for example, physical properties of pastes.
Números figurados e as sequências recursivas : uma atividade didática envolvendo números triangulares e quadrados
(Universidade Federal de São Carlos, 2013-03-11)
Chiconello, Luis Alexandre
;
Paterlini, Roberto Ribeiro
;
https://lattes.cnpq.br/6240750958932738
;
https://lattes.cnpq.br/7275458905939344
The shortage of activities regarding recursive defined sequences, allied to the importance of this theme to young students has been contested in at least twenty years of experience teaching Mathematics. The elaboration of a learning product, in a form of sheets of activities which gradually lead the student to the understanding of the concept of recursion, the pattern recognition, conjectures tests and formulas acquisition, could be inferred by the application of these sheets of activities in two high school classrooms in a technical state school. The data attained from these activities applications were analyzed and compared to the previously formed hypothesis (previous analysis) which were formed during the elaboration of the sheets of activities. The investigation method used was the Didactical Engineering. The students did the activities in groups of two or three students .They were participative and felt challenged in doing every step (lessons) proposed in the sheets. It was verified that the teaching material developed works, as it reached its main goals, the biggest one, the students learning. It is believed that the material developed may be useful to other teachers who may wish to develop the theme proposed in their classrooms, even adapting them to their students needs. This work brought to this author a great profession evolution which began with the theme choice, passed through the development of the material, the application in the classes and finally in the reflection of everything that was done and that is recorded in these notes.
Conectadas: uma análise de práticas de ajuda mútua feminina na era das mídias digitais
(Universidade Federal de São Carlos, 2013-03-11)
Facioli, Lara Roberta Rodrigues
;
Escudeiro, Richard Miskolci
;
https://lattes.cnpq.br/1623888309974862
;
https://lattes.cnpq.br/0342941917131063
The present work focus on investigating processes of subjectivity in contemporary self-help speeches aiming the female audience, which when penetrating the network through a specific form of using digital media, they become practical mutual help. To achieve this goal, I established three main lines of research, which I will discuss through a ethnographic method: the website Bolsa de Mulher, with its discussion forums, advertisements and products sales and the group created by the users on Facebook, the lines among users within that platform, their life stories and experiences both with the internet and the self-help speech; finally, some books of this genre, most cited by my collaborators and some of the best selling in recent years, in Brazil. I discuss a theoretical framework that examines issues of subjectivity through the use of digital media as well as one that addresses a perspective of intersectionality of class differences, gender, sexuality, race, religion, all markers crossing such use. Last but not least, I problematize and bring into discussion the sociological debate around the so-called New Class C, public that composes this research and has specific characteristics regarding the use of digital media and the dynamics of mutual help, in Brazil.
Estudo das propriedades estruturais dos catalisadores de Cu e Cu-Ce suportados em alumina aplicados à reação de deslocamento gás-água
(Universidade Federal de São Carlos, 2013-03-12)
Caldas, Paula Cristina de Paula
;
Bueno, José Maria Corrêa
;
https://lattes.cnpq.br/0157452280626031
;
https://lattes.cnpq.br/3466253594165485
Particle size effect and Ce addition on the catalytic properties of Cu/Al2O3catalysts were investigated for the water gas shift reaction (WGS). The catalysts were prepared by dry impregnation of an aqueous solution of nitrates of the respective metals on alumina, synthesized by sol-gel method. Samples were prepared with 5, 10 and 15% w/w of metallic copper and 12% w/w of CeO2. The catalysts were characterized by X-ray diffraction (XRD), temperature programmed reduction (TPR) spectroscopy, X-ray absorption (XAS). The WGS reaction was performed with reagents ratio of H2O:CO = 1:3 with temperature range from 200 to 350° C. The crystallites CuO were not detected by XRD. As the Cu content increased, the crystallite size of CeO2 decreased with a fluorite type structure from 7.4 to 3.4 nm. The results of TPR showed that the interaction Cu-O-Al was crucial to reduce temperature and ceria addition on the catalysts did not affect the temperature reduction of the CuO. The XANES in situ results along the WGS reaction showed that metallic Cu predominated and ceria was partially reduced. EXAFS results showed that the Cu particle size increased from 0.65 to 0.91 nm with an increased load of copper from 5 to 15%, respectively. After the reduction, step prior to reaction, the catalysts were not completely reduced. The degree of reduction increased with the Cu particle size and it was also dependent on the temperature and the oxidation potential of mixing of the reactants. The addition of ceria did not change the degree of reduction of samples Cu/Al2O3. The results suggest that the Cu particles have a reduced Cu core covered with an oxide layer. The catalytic activity increased as the Cu particle size decreased, which can be associated with the presence of the redox couple Cu+/Cu0. This provides a possibility of CO oxidation and its reoxidation due to water activation. The ceria addition also increased catalytic activity and it is probably attributed to activation of the water on the surface of ceria, followed by transfer of oxygen from its structure to the oxidation of CO in an interface Cu-CeO2.
A educação escolar na arena do ciberespaço
(Universidade Federal de São Carlos, 2013-03-12)
Oliveira, Alessandro Eleutério de
;
Zuin, Antônio Álvaro Soares
;
https://lattes.cnpq.br/5543562307373287
;
https://lattes.cnpq.br/3800768997086874
The objective of this study is to examine virtual communities dedicated to the School Education site relationships Orkut. Accordingly, we analyze written statements from teachers and students in order to apprehend the ways in which those involved in the teaching-learning perceive each other. That is, how students express themselves about their teachers, as teachers are manifested on students and how teachers and students are manifested on School Education. The rationale for this research is the need of understanding the ways in which the subjects' school experiences are expressed in cyberspace. The examination of the information contained in written statements made effective border methodological content analysis. Thus, the lucubrations are lit mainly by authors of Critical Theory, as Theodor Adorno and Walter Benjamin, by the confluence of the material collected in virtual communities on topics such as disorientation and semi-formation in contemporary as well as your reflexes in Brazilian School Education. Other authors provide important contributions to the construction of this paper are Richard Sennett, Charles Melman and Zygmunt Bauman. To date, the categories derived from the analysis of the data show the existence of largely negative perceptions of teachers on students, and vice versa, from experiences of these subjects in the teaching-learning process. This occurs in a context of reification and fragmentation of socio-cultural, which damages the formative experience. This process hinders the effectiveness of dialogic praxis, which is fundamental to the success of School Education
Microestrutura e propriedades mecânicas de vitrocerâmicos do sistema Li2O – CaO – SiO2
(Universidade Federal de São Carlos, 2013-03-12)
Santos, Gisele Guimarães dos
;
Zanotto, Edgar Dutra
;
https://lattes.cnpq.br/1055167132036400
;
https://lattes.cnpq.br/0761705816463042
An interesting characteristic of the Li2O-CaO-SiO2 glass-forming system is the possibility of obtaining certain crystalline phases and morphologies that may lead to tough glass-ceramics. However, very few published works investigated this matter. Glass compositions within the range 30-50% CaSiO3 / 70-50% Li2SiO3 were studied to obtain appropriate microstructures. Heat treatments were conducted using the double treatment technique: nucleation at about the glass transition temperature followed by crystal growth within the temperature range 500 and 700°C. These temperatures were selected according to DSC data. The influence of the size, number and morphology of the crystals on certain mechanical properties of the glass-ceramics, such as hardness and indentation toughness, were estimated by Vickers indentation tests. The samples were also characterized by X-ray diffraction to identify the phases present and by MEV to examine the crystal size, percentage and morphology. The best results were obtained with a composition of 44% mol CaSiO3 using the following thermal treatment conditions: 498°C for 24 hours (nucleation) and 700°C for 2 hours (Crystal growth), that led to a glass-ceramic showing a toughness of 1,9 MPa.m1/2.
Desenvolvimento, perícia e poder no rural paulista : o caso do Programa Estadual de Microbacias Hidrográficas
(Universidade Federal de São Carlos, 2013-03-12)
Gameiro, Mariana Bombo Perozzi
;
Martins, Rodrigo Constante
;
https://lattes.cnpq.br/6617183095074852
;
https://lattes.cnpq.br/5015952241455361
This research analyzes the relations established by agents with the expert knowledge in the context of a public policy for rural development, by reconstructing the experiences of those who took part of its processes of formulation and implementation. These processes are often mediated by funding institutions and rural extension agencies. Analyzing social phenomena from the perspective of mediations, and more specifically, from the perspective of expertise, assumes the centrality of power dimensions, the identification of its asymmetries and constant disputes over the construction of views about ruralities. The object of this study is the Land Management III Project (Programa Estadual de Microbacias de São Paulo - PEMH), one of the first public policies with a territorial, decentralized and participative approach for the sustainable rural development of the State of Sao Paulo. This program was partially financed by the World Bank and executed between 2000 and 2008 by the State Secretary of Agriculture, through its rural extension body, the Coordination of Integral Technical Assistance (CATI). The problematization of this research was designed from Anthony Giddens concept of systems experts, from whom we also extracted the notions of reflexivity, agency, time and space. Manuel Castells concepts of space of flows and space of places also assisted in the interpretation, as well as Michel Foucault's formulations on discourse. The field researches required the contributions of Luc Boltanski and Erving Goffman on trust and interaction processes. Techniques of social qualitative research, such as interviews and document analysis, were employed.
Efeitos de variáveis de procedimentos de treino para o estabelecimento do controle contextual de relações condicionais e de equivalência
(Universidade Federal de São Carlos, 2013-03-13)
Castro, Tatiane Carvalho
;
Goyos, Antônio Celso de Noronha
;
https://lattes.cnpq.br/3407008711535651
;
https://lattes.cnpq.br/8320755140772016
Studies about the effects of contextual control over equivalence classes have been conducted since the 1980s and a relevant question in this area, both in terms of experimental and applied research, is whether changes in contextual variables could result in changes in classes originally formed under different contextual variables. This research investigated, in four studies, the effects of procedures for establishing the contextual control of conditional relations and equivalence classes. The participants were undergraduate students. The stimuli used as sample and comparison were abstract figures and the contextual stimuli were represented by the colors of the background on which the stimuli were presented. In Study 1, we conducted a procedure for the formation of equivalence classes on backgrounds of red and blue colors. Later we conducted a test that showed the equivalence relations in the presence of contextual stimuli blue, red and green. The results showed that participants had responses consistent with the last equivalence class trained, independent of contextual stimulus. Study 2 replicated the previous study, but tests also showed baseline relations. The results obtained were similar to Study 1. Study 3, initially, partially replicated the procedure of previous studies, only for conditional relations AB and then tested the effects of a conditional discrimination training procedure interspersing the colors of the background. The results revealed that this procedure was most effective in setting the control contextual than those conducted in Studies 1 and 2. Study 4 investigated the effects of a interpersed training procedure for the establishment of the contextual control of recombined conditional relations. The procedure consisted of six phases. Phase1 was conducted a conditional discrimination training interspersing the colors of the background. In Phase 2, we carried out the test of relations trained in Phase1. In Phase 3, tests were conducted in which trials were included with a green background. Phase 4 included the symetry relations. Phase 5 presented the same relations were tested in Step 4, however the configuration of stimulus presentation on the computer screen was different. Finally, in Step 6, a test aimed to verify the abstraction of responding under contextual control, with new stimulus and background colors. The results suggest that the contextual control was established for some of the participants. Investigations about the baseline relations training, specifically the interspersed training , for establishing the contextual control is required to produce more robust results.
Teatro e sociedade em Rousseau
(Universidade Federal de São Carlos, 2013-03-13)
Monzani, Luiz Henrique Alves de Souza
;
Nascimento, Luís Fernandes dos Santos
;
https://lattes.cnpq.br/3654785629696808
;
https://lattes.cnpq.br/5199031927733175
Carnavalização e linguagem: o futebol como dramatização da sociedade brasileira
(Universidade Federal de São Carlos, 2013-03-13)
Bombonato, Pedro Guilherme Orzari
;
Miotello, Valdemir
;
https://lattes.cnpq.br/9131819326282708
;
https://lattes.cnpq.br/4484872576716366
More than just the most practiced and admired sport in Brazil, soccer is constituted as one of the most important element of our country s culture. And as any manifestation of the culture sphere, this sport overlaps an infinite amount of social and linguistic relations that constitutes it sometimes as an attractive and highly competitive sport (commercially), sometimes as a spectacle, metaphor and metonymy of society. In this sense, it can be seen as a major form of dramatization of Brazilian society, as regards the anthropologist Roberto DaMatta. Taking into account the theories of Mikhail Bakhtin about the concepts of carnivalization, play, aesthetics and ethics, the objective of this work is to search for points of intersection between soccer and art such as building an understanding of the sport as a form of social drama. Therefore, beyond the theoretical, it will take into account the analysis of various types of texts that present this sport as the main focus. Thus, we intent to better understand the cultural and linguistic relations which constitute soccer as a fundamental part of the Brazilian cultural context.
Catalisadores de Cu/CeO2 modificados com La aplicados à reação de deslocamento gás-água
(Universidade Federal de São Carlos, 2013-03-14)
Silva, Tatiana de Freitas
;
Assaf, José Mansur
;
https://lattes.cnpq.br/9563312407691130
;
https://lattes.cnpq.br/4435205814755218
The water gas shift reaction (WGSR) is often used in industrial processes in order to increase hydrogen production, as well as to remove quantities of CO in the chains produced by steam reforming of hydrocarbons. In this work, CuO/CeO2 and CuO/CeO2-La2O3 catalysts were prepared for application in the watergas shift reaction. The CeO2-La2O3 and CeO2 supports were prepared by three different methods: Hydrothermal (CeO2-La2O3(H) and CeO2 (H)), Co-precipitation (CeO2-La2O3(CP) and CeO2 (CP)) and Sol-gel ( CeO2(SG) and CeO2- La2O3(SG)). The La2O3-CeO2 supports were prepared according to the following molar ratios: 2:1, 1:1 and 1:2 (CeO2-La2O3). The activated catalysts were tested in the water gas shift reaction at temperatures between 150°C and 350°C and the formed products were analyzed by gas chromatography. The CO:H2O molar ratio used in all catalytic tests was 1:5. The catalysts Cu/CeO2(H), CuO/1CeO2-1La2O3(H), CuO/CeO2(CP), CuO/1CeO2-2La2O3(CP) and CuO/CeO2(SG) were also tested at 350°C for 24 hours in the shift reaction under the ideal situation (Reactor Feed: CO, N2 and H2O) to verify their stability. The catalysts CuO/CeO2 (H) and CuO/1CeO2-1La2O3(H) were also tested in the shift reaction under the real situation (Reactor Feed: CO, H2O, N2, H2 and CO2) for performance evaluation in a situation closer to the actual composition of the products observed at the output of industrial reformers. From the results it was observed that the addition of La to the CuO/CeO2 catalyst led to its structural stabilization by preventing the specific area decrease. The addition of La2O3 to the CuO/CeO2 catalysts caused a higher interaction of CuO with the supports, thereby preventing sintering of CuO, even during the reactions. XANES measurements in situ at the Cu edge confirmed the presence of Cu reduced during the course of the reaction, suggesting the presence of Cu sites with similar electron density. XANES spectra at the Ce edge confirmed that there were small changes in the oxidation state of Ce and that Ce species are more oxidized in the catalyst in which La is present. The presence of La probably contributed to higher stabilization of ceria and increased the mobility of oxygen due to vacancy formation in the CeO2 network. Catalysts whose supports were prepared by the hydrothermal method resulted in materials with higher specific area and higher catalytic activities and were more stable with respect to those obtained by the two other methods, during the 24 hours of reaction at 350°C. Therefore, the Cu/CeO2 (H) and Cu/1CeO2-1La2O3(H) catalysts show to be promising as catalysts for the shift reaction. We also observed that the support preparation process affected some properties of the material, such as phase formed, particle size, metallic area, dispersion, surface area and catalytic performance.
Investigação de processos colisionais e reacionais para cromo e vanádio em interface de espectrômetro de massa com plasma indutivamente acoplado
(Universidade Federal de São Carlos, 2013-03-14)
Salazar, Rodrigo Fernando dos Santos
;
Nóbrega, Joaquim de Araújo
;
https://lattes.cnpq.br/8833989058164529
;
https://lattes.cnpq.br/9370462066771109
The analytical capability of inductively coupled plasma mass spectrometers (ICPMSs) and their wide use in different fields of science are well known. However some drawbacks, such as the occurrence of isobaric and polyatomic interferences and ionic suppression effects are commonly related to this method, mainly for ICP-MSs with quadrupole analyzers (ICP-QMS). Consequently, some elements as Cr and V are negatively affected due to polyatomic interferences caused by Ar, C, Cl, N, O and S species. Along the development of this method, different strategies were proposed such as dynamic reaction cell technologies (DRC) and collision-reaction interface (CRI) in order to correct for these effects. The aim of this thesis was to evaluate the application of CRI and DRC interfaces for polyatomic interferences correction affecting Cr and V determination. Solutions containing from 1000 up to 10000 mg L-1 of C, Cl, N and S were employed in order to evaluate polyatomic formation and correction of their effects with both devices. Helium and H2 were used as collision reaction gases through the skimmer cone in the ICP-QMS-CRI whereas NH3 was introduced into the DRC-ICP-QMS. These solutions contained 5 Sg L-1 of Cr and V. The figures of merit evaluated were: limits of detection (LOD, ng L-1), background equivalent concentration (BEC, ng L-1) and signal-to-background ratio (SBR) for instrument optimization and sample preparation based on microwave-assisted digestion (MAD), microwave induced combustion (MIC) and sample dilution with internal standardization for different samples were investigated. It was observed that the collision and reaction devices employed led to improvements of SBR, BEC and LOD values for Cr and V from 5 to 100-fold when compared with measurements without using either CRI or DRC. However, signal intensities for Cr and V with both devices decreased when compared with signal intensities obtained with pure analytical solutions. Losses of signal intensities were more critical in ICP-QMS-CRI, independently on the gas (20 mL min-1 He or H2), than in DRC-ICP-QMS (0.5 mL min-1 NH3). Consequently, better LOD and BEC values were achieved for DRC than CRI for Cr and V determinations in crude oil samples from three different sources and lubricant oil. Finally, it could be pointed out that both systems presented advantages and disadvantages that will depend on the analytical task but spectral interferences caused by concomitants could be solved using both devices.
Continuidade de atratores para problemas parabólicos semilineares sob perturbações do domínio
(Universidade Federal de São Carlos, 2013-03-14)
Samprogna, Rodrigo Antonio
;
Silva, Karina Schiabel
;
https://lattes.cnpq.br/2677541143976758
;
https://lattes.cnpq.br/4957079152385362
In this work we will obtain the continuity of attractors for semilinear parabolic problems with Neumann boundary conditions relatively to perturbations of the domain. We will show that, if the perturbations on the domain are such that the convergence of eingenvalues and eingenfunctions of the Neumann Laplacian is granted then we obtain the upper semicontinuity of the attractors. If, moreover, every equilibrium of the unperturbed problem is hyperbolic we also obtain the continuity of attractors
Avaliação do retardamento do desenvolvimento de plântulas de espécies arbóreas nativas
(Universidade Federal de São Carlos, 2013-03-15)
Banci, André Moisés
;
Gandolfi, Sergius
;
https://lattes.cnpq.br/4507066244348106
;
https://lattes.cnpq.br/6660367966334883
Due to the high rates of environmental degradation and their consequences to the population, environmental recovery in many areas is an urgent need. Recovering degraded areas may be done by using several techniques alone or in combination. The traditional recovery system by means of seedling planting is expensive and has limited guarantee of germination using no-tillage sowing. Therefore, this study tested the viability of experimentally growing seedlings from seven native tree species without them suffering significant changes, after storing the sprouts in cold chambers for periods ranging from 7 to 28 days. The results showed that it is possible to delay the growing of radicles in seedlings stored in cold chambers (15°C) when compared to seedlings stored in germinator (25°C). In four out of seven species (Marlierea eugeniopsoides, Cordia americana, Cedrela fissilis e Hymenaea courbaril) stored for 14 days in cold chambers, the seedlings survival rates were higher than 77% 60 days after they were seeded in the nursery containers. This survival rate was similar to the rate of seedlings not stored in cold chambers. In three species (Marlierea eugeniopsoides, Luehea grandiflora e Hymenaea courbaril) stored for 21 days the survival rates were higher than 75%. The species Marlierea eugeniopsoides did not show significant survival changes even after storage in cold chamber for 28 days.
Inserção japonesa sobre a Ásia através de instituições de cooperação e fomento: modelo para o Brasil na sua consolidação na América do Sul
(Universidade Federal de São Carlos, 2013-03-15)
Chiarelli, João Rodrigues
;
Braga, Maria do Socorro Sousa
;
https://lattes.cnpq.br/2311094074614215
;
https://lattes.cnpq.br/8642786083995896
This paper analyzes the capacity of Regional Cooperation by the Japanese state and the advantages obtained through strategic management of state institutions. For this research, take focus on internal historical factors and key political actors who led Japan's to become a Soft Power agent. The ultimate goal of this research is a timely contribution on the Japanese experience in the field of cooperation that may be of relevance for Brazilian diplomacy and expanding national Soft Power.
Negro intelectual, intelectual negro ou negro-intelectual: considerações do processo de constituir-se negro-intelectual
(Universidade Federal de São Carlos, 2013-03-15)
Oliveira, Evaldo Ribeiro
;
Silva, Petronilha Beatriz Gonçalves e
;
https://lattes.cnpq.br/2447899367873195
This research entitled "Black Intellectual, Intellectual Black or Black-Intellectual: notes of the process of becoming Black-intellectual", aimed at understanding processes in which Black men and women have made himself / herself in intellectual and identify their experiences of men and women Blacks to form up and intellectuals can contribute to the education of ethnic-racial relations. For this purpose, I make the use of the research question: What processes are present in the form themselves as Black intellectuals? The methodology of the present research is based on principles of Phenomenological that inspires the researcher's stance in relation to the object of research, the research participants, the processes of collecting, analyzing and interpreting data. There were three in-depth conversations with professionals, self-identified Blacks, recognized as intellectuals, with the goal of understanding the meanings of processes experienced by Black men and women as they constitute intellectual. The research allowed an understanding that to constitute themselves as Black and as intellectual, there is a mutual strengthening of both: the Black person and the community to which they belong. Also identified not only studies schools and universities as places of education but also family influences, sensitivity to perceive and study social realities that affect Blacks and especially coexistence and fights with the Black Movement. The Black intellectuals seek to act in the community, in dialogue with the Black community, with other intellectuals and society in general. Its education proceeds in the following dimensions: Becoming Black: a testimony of Blackness; Digging spaces: actions, reactions and joints; Definitions and ide as of who is Black intellectual; Persistence and Militancy: as if you re working out in cold iron.