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Continuidades e mudanças na promoção dos interesses nacionais americanos no pós-guerra fria
(Universidade Federal de São Carlos, 2013-03-06)
Contrera, Flávio
;
Villa, Marco Antonio
;
https://lattes.cnpq.br/8376542572229961
For over forty years the struggle against the spread of communism dominated the U.S. foreign policy agenda. However the end of the Cold War proved the limits of the containment strategy front the emergence of new and complex challenges. Without a vital security threat, the U.S. had great difficulty to define and promote their national interests. The Post-Cold War era has been marked by a dominance of smaller-scale threats, often transnational in scope, and was characterized, from the beginning, by lack of clarity of Americans with respect to their international objectives. At the end of the 1990s, some authors stated that the U.S. government would have given more emphasis in this context to the promotion of economic, ethnic and humanitarian interests, rather than potentially more vital threats to the survival of the country. These works, however, not delimited the concept of national interest and not identified this from the analysis of an official policy document. Keeping this in mind, we start from the perception that national interests are policies defined by policymakers together with the President to pursue certain goals abroad. As such, those composing, as required by law, the U.S. National Security Strategy. Thus, by analyzing the annual editions of this document, published between 1987 and 2000, the main objective of our work consisted to evaluate whether in the absence of a vital threat to U.S. security in the post-Cold War, it would have taken a redefinition of American national interest s agenda. In short, data showed that during the Clinton administration security interests had reduced their emphasis. The absence of a vital threat and the predominance of secondary threats resulted in a national interest s agenda more focused on "economic well-being and promotion of values" and less oriented to "defense of the nation and favorable world order". This decline of security as a priority issue was also accompanied by a trend of decreasing in U.S. military spending and also a substantial increase in spending on U.S. foreign economic assistance programs, which suggests, in fact, a redefinition of the country's priorities in the Post-Cold War context.
Avaliação da aprendizagem na educação a distância : algumas concepções e práticas avaliativas desenvolvidas no curso de licenciatura em pedagogia, modalidade EaD, da UFSCar
(Universidade Federal de São Carlos, 2013-03-06)
Bianchi, Priscila Cristina Fiocco
;
Reyes, Cláudia Raimundo
;
https://lattes.cnpq.br/8767701419344955
The appearance of Distance Education (EaD) in the world scenery and also Brazilian is associated to the scientific and technological development and to the social need of providing education to the segments of the population not accordingly served by the traditional system of teaching. The most time, studying by this modality of Distance Teaching (EaD in Portuguese) is the only opportunity offered to young and adult workers. This way, this modality of education contributes to enlarge the scope of democratization of the education and it can also be consider as way of overcoming barriers of space and time. This new configuration space-time proposes and, above all, requires new postures, habilities and competences of AL involved in the process of teaching and learning, in particular, the way how the evaluation of learning is developedin the Distance Teaching (EaD). In this sense, the present work of search brings as a question: What are the implications for the student forming in the use of different tools and evaluative instruments foreseen in the model of Distance Education from UFSCar, using as clipping the course of Pedagogy, in the perspective of the teachers? We detach that this investigation was realized in a qualitative perspective of research, bein used as an instrument of data collection an on line questionnaire that was answered by eleven teachers in a period at about three weeks. The evaluation of learning in this modality is a theme that deserves attention, because it s an instrument of support to the process of building and rebuilding of the knowledge. Thus, understanding how the evaluative process is developed in Distance Education courses means to lean studies about the use of didactic tools and materials, evaluative instruments and a look at the conception of evaluation presented by the teachers. The results of this research showed that the teachers has been keeping a variety of evaluative instruments in their disciplines, having a balance between the individual and collective activities, although still prevail conventional forms of evaluation, as an example, syntheses, analysis and discussions in forums. Beside, the results reflect that the application of individual writing test is used more than another instrument. The didactic tools used by the teachers provide the student to get competences coherent with the Professional Profile To Be Graduated by the UFSCar. It´s offered to the students opportunities to exercise specific activities of the profession, to learn in an independent and continuous way. However, many aspects need to be reviewed and improved, in special aspects inherent work with multidisciplinary teams, to the action in a form inter/multi/transdisciplinary. For this investigation on, I intend to contribute for the evaluative processes became more dynamic and articulated, so that the evaluation is a process that direct the development and the success of the student. In this sense, we hope it´s possible to offer subsidies that can collaborate for a depth reflections about the elements that compose the process of teaching and learning (planning, evaluative instruments, teaching strategies, didactic materials, etc.).
Consumo de álcool entre universitários: histórico de violência como risco e religião como fator de proteção
(Universidade Federal de São Carlos, 2013-03-07)
Priolo Filho, Sidnei Rinaldo
;
Williams, Lúcia Cavalcanti de Albuquerque
;
https://lattes.cnpq.br/6962646759651464
;
https://lattes.cnpq.br/4997927772311378
Alcohol consumption among College students has been a main concern among different sectors of society around the world. Risk factors associated to this behavior are not clear and more research is needed. The objective of this research is to verify if a history of intrafamilial violence is associated to higher alcohol consumption during College years. Furthermore, analyze if religion has an association with the consumption among this group as well. A review of the literature points out that history of violence is associated with higher alcohol consumption, however few researches were made analyzing polyvictimization and future alcohol consumption. The consequences for children that suffered different forms of victimization are not yet known in full extension. This research tries to fill some of those blanks, for that purpose it used the AUDIT questionnaire adapted with 1452 participants. In that sample alcohol consumption in life had a percent of 93.51% to woman and 93.10% to men. While, the consumption in the last 3 month was 82.04% and 83,74% respectively. The most frequent form of violence was physical (40.99%), the second was exposure to domestic violence (30.60%). A linear regression model was performed and was found and association between having a history of violence and a higher score in alcohol consumption. That association was verified to all forms of violence, including polyvictimization. About religion, results shown that 30.16% of the College students reported do not have a Religion, a higher percentage than that found by the National Census. Participants that do not have a religion present a higher chance to consume alcohol and binge drink. Having a religion may be a protection factor to binge drinking, especially, among evangelical participants.
Análise comparativa de diferentes tratamentos para reduzir a deterioração de tomates
(Universidade Federal de São Carlos, 2013-03-07)
Rosanova, Aline de Holanda
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Ferreira, Maria do Carmo
;
https://lattes.cnpq.br/7070885875161111
;
https://lattes.cnpq.br/9989278096493384
Due to their high moisture content, tomatoes have a high metabolic activity that continues even after harvesting, making them a highly perishable vegetable. According to FAO, Brazil is the largest tomato producer in South America and the eighth largest producer in the world. Despite this significant production, rapid fruit deterioration causes a loss of about 40% of this production in post-harvesting operations such as transportation and storage. Recently, new techniques have been tested to increase the shelf life of vegetables, such as the use of high voltage electric fields to produce a modified atmosphere in which the ionization induced by corona discharge contributes to retarding deterioration by mechanisms such as the decreasing respiratory rates, destroying ethylene and producting ozone. Therefore, the objectives of this study were to set up, check and test equipment to carry out experiments to treat different types of fruit and vegetables using electric fields. In this work this system was used for tomatoes and its effectiveness was evaluated by analyzing some measurable quality properties such as loss of mass, changes in skin color, fruit firmness, total titratable acidity (ATT) and soluble solids content (SST). This method was compared to the use of refrigeration to extend the shelf life of this vegetable. An improvement of some measurable quality properties was observed after treating tomatoes cv. Andrea Victory intermittently by applying an electrical field of -1.6 kV/cm followed by storage in climate chamber or using -2.0 kV/cm followed by storage at room temperature, and also after using continuous treatments in tomatoes cv. Paron (-1.9 kV/cm) followed by storage at room temperature. The other measured properties did not indicate benefits of electrical field treatment for preserving the fruit quality. Storage of tomatoes cv. Paron at 15.0 oC and relative humidity of 70% reduced the loss of mass and improved fruit firmness in comparison to the control group, while the storage in a domestic refrigerator reduced the loss of mass and improved the skin color of the vegetables. Concerning the treatment techniques electric fields and refrigeration, a clear advantage of one compared to the other was not identified, since both had a positive effect on at least one property investigated.
Taxa de atração para equações de reação-difusão com difusão grande localizada
(Universidade Federal de São Carlos, 2013-03-07)
Pires, Leonardo
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Silva, Karina Schiabel
;
https://lattes.cnpq.br/2677541143976758
;
https://lattes.cnpq.br/1872209362721295
In this work we study the nonlinear asymptotical dynamics of a semilinear reactiondiffusion equation of parabolic type, when the diffusion coefficient becomes very large in a subregion Ω0 which is interior to the physical domain Ω. We obtain, under suitable assumptions, that the family of attractors behave continuously with respect to a rate of attraction.
Estabilidade em equações de reação e difusão : interação entre difusibilidade e geometria em superfícies de revolução e um problema singularmente perturbado no caso de intersecção das raizes da equação degenerada
(Universidade Federal de São Carlos, 2013-03-07)
Sônego, Maicon
;
Nascimento, Arnaldo Simal do
;
https://lattes.cnpq.br/6609243657130387
;
https://lattes.cnpq.br/4425077751075680
In this work we study two distinct problems. The first is a parabolic problem with variable diffusivity on surfaces of revolution. The objective is to find mechanisms of interaction between the diffusivity function and the geometry of the domain ensuring the existence of stationary stable nonconstant solution as well as non-existence. The second is a problem of reaction and diffusion singularly perturbed in the case of intersecting roots of the degenerate equation. We prove the existence and geometric profile of four families of stationary stable non-constant solutions to the parabolic equation. In both problems the main tools used are T-convergence theory and techniques of variational calculus.
Propriedades da sílica CTA-MCM-41 contendo metacrilatos e seu emprego na transesterificação de monoéster
(Universidade Federal de São Carlos, 2013-03-07)
Araújo, Jailson Arruda de
;
Cardoso, Dilson
;
https://lattes.cnpq.br/2462847535959232
;
https://lattes.cnpq.br/4541573294061168
The search for clean and renewable fuels has aroused great interest in the industry and scientific community with the growing demand for energy. The transesterification reaction of triglycerides is one way of achieving a sustainable fuel and less harmful to the environment. This has encouraged researchers to develop new routes of synthesis of heterogeneous catalysts. The CTA-MCM-41 silica has basic catalytic sites called siloxy (≡SiO-) and may be used in transesterification reactions. Its use in base catalysis has shown promising results, but the reuse reveals extensive loss of activity due to the removal of CTA cations from the channels. The catalyst modification may improve the catalytic stability, in which the insertion of polymeric species together the micelles within the silica is one method studied by our group. Given this perspective, this study aimed at evaluating the modification of the basic catalyst CTA-MCM-41. The polymers encapsulation and ultraviolet irradiation on silicas containing monomer were performed in this study. It was possible to prove by means of small angle X-ray scattering conducted on the emulsion and silicas, the polymeric and monomeric species were inside the micelles causing micellar and silica expansion. The infrared absorption spectroscopy, X-ray diffraction and chemical analysis showed that these species remained inside the micelles after encapsulation. The catalytic evaluation demonstrated that the modified silica with low amounts of monomer added showed improved catalytic stability.
As organizações sindicais dos trabalhadores e o processo constituinte 1987-88: um estudo sobre a atuação do DIAP
(Universidade Federal de São Carlos, 2013-03-07)
Costa, Lucas Nascimento Ferraz
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Noronha, Eduardo Garuti
;
https://lattes.cnpq.br/6908348693613769
;
https://lattes.cnpq.br/5825771500862011
The goal of this dissertation is to analyze the performance of the Department of Inter Parliamentary Advisory (Departamento Intersindical de Assessoria Parlamentar) (DIAP) in the constituent process of 1987-88. The organization was able to unify the consensual demands of the working class, uniting in a single project for the Constituent Assembly, the unions of the period, that were divided politically. With this, the DIAP changed the trade union agenda at that time, one of the reasons that explain the success of the "lobby" of working class in the National Constituent Assembly (NCA). In research, we divide the dissertation into two phases of the organization, before and during the Constituent Assembly. Previously, since 1983, when it was created, we analyze the formation process of consensual project, which involved the preparation of technical studies and negotiations with union leaders. When working in the NCA, we analyze the influential "lobby" practiced by DIAP, showing political conflicts faced by the organization at every stage of this process. We understand that DIAP was a central actor in defending the interests of workers, managing to convince the unions of workers, leftist political parties and progressive constituents to act according its design. It was a delicate pact, which was only possible by the peculiarities of the constituent process. The Constituent Assembly has provided the opportunity of "lobbies" to seek important achievements, in approving their interests in constitutional standarts. The DIAP is one of the most important products of this political reality. The support given to the organization to act on behalf of a class is explained by its institutional design, which has adapted to the lack of organization and preparation ahead of the unions of the importance of the constitutional process.
Estudo de caso da tutoria virtual da UAB - UFSCAR: análise do processo formativo e atuação
(Universidade Federal de São Carlos, 2013-03-07)
Fonseca, Ana Paula Araujo
;
Reyes, Cláudia Raimundo
;
https://lattes.cnpq.br/1274752433328441
Online education has opened a new way of organizing the processes of teaching and learning, from the division of teaching duties before accomplished by a single teacher. In Online education, the virtual tutor stands out in teaching process. Although considered central to the process of monitoring and evaluation of student performance, few studies have been dedicated to evaluating training proposals for this category. This paper describes and analyzes a proposed virtual tutor training at the Federal University of São Carlos - UFSCar, partner of the System Open University of Brazil (Universidade Aberta do Brasil UAB). The chosen institution is considered a national reference in the field of tutor training, having served as a model for other partner institutions from UAB. This is a case study from the theoretical framework of Behavior Analysis. The procedure adopted was to: a) record the history of the creation of the proposed formation of virtual tutors UAB-UFSCar, from semi-structured interviews with the team that conceived, b) describe the objectives and strategies of teaching and evaluation planned for one of the editions of the course offered at the institution, c) describe and analyze the performance of one the students of the training course on mentoring during the conduct of the course and his first performance after formed d) establish possible relations between the student performance observed during his first acting as a tutor in a course subject of UAB-UFSCar and the aspects present in the 14th edition of virtual tutoring. The main findings showed that training course in virtual tutoring of UFSCar presents the UAB-training strategies that aim to strengthen the knowledge of the "know about." There is a course unit designed to the practical exercise of the function of tutor, favoring the knowledge of the "know-how". The tutoring models offered by tutors trainers are an important part of the training process, as well as the first entry in the mentoring activity. The participant analyzed demonstrated above average performance during the training course, has made all activities toward the goals proposed by the course. However, when his first role as tutor, his performance did not match the expected, especially when compared to the initial training period. These results suggest that the induction period is crucial for tutors remains in training, being pointed to the importance of creating induction programs that helps the tutor virtual in his functions required in every discipline. The teaching staff, as well as the Supervisor of tutors, gives an important support for planning strategies of monitoring the beginner tutor. Indentify relevant aspects of the training offered through contingency analysis of teaching and learning, can directly assist in the improvement of formative processes of the UAB-UFSCar and indirectly to other institutions. It is suggested that the Behavior Analysis can contribute to the training of the tutor, in that it is concerned to create conditions suitable to teach him how to teach.
Efeito Aharonov-Bohm sem interação com a fronteira do solenóide
(Universidade Federal de São Carlos, 2013-03-08)
Romano, Renan Gambale
;
Oliveira, César Rogério de
;
https://lattes.cnpq.br/5485204156806697
;
https://lattes.cnpq.br/2317413965575635
One of the biggest problem in the mathematical modeling of the Aharonov- Bohm Effect is the interaction between the electron and the solenoid border. Such interaction translates into boundary conditions on that border, which causes great ambiguity because in principle it is not clear what the most appropriate choice. In quantum mechanics this conditions represent self-adjoint extensions of the Schrödinger operator of the problem. On the other hand, recent works has demostrated that it is possible to confine quantum particles in certain regions of Rn with magnetic fields sufficientily intense near the border of that region. Mathematically this corresponds to essentially selfadjoint Schrödinger operators, which means exemption from the particle interation with the solenoid border In this work we intend to combine the two situations mentions above to study the Aharonov-Bohm effect in the plane, adding then external magnetic fields and potentials that are suffiently intense in the solenoid border so that the related Schrödinger operator is essentially self-adjoint.
Mecanismos comportamentais e moleculares envolvidos na interação entre as substâncias de abuso e os fatores de risco para o desenvolvimento da dependência
(Universidade Federal de São Carlos, 2013-03-08)
Leão, Rodrigo Molini
;
Planeta, Cleopatra da Silva
;
https://lattes.cnpq.br/9991437191368026
Tobacco and ethanol are the most used drugs in the world and often co-abused. An important issue in the field of drug abuse research is the characterization of risk factors related to increased vulnerability to drug addiction. In the present study we investigated in rats: a) the effects of exposure to variable stress on nicotine-induced locomotor activation, CREB and ERK activities in the prefrontal cortex, nucleus accumbens and amygdala and nicotine intravenous self-administration; b) whether previous exposure to cocaine could affect nicotine seeking behaviors, and if this phenomenon could be related to alterations in the BDNF, TrkB, DYN, Mi-Opio, NPY and CRFR1 gene expression in the nucleus accumbens; c) whether repeated nicotine treatment could induce anxiety-like behavior, which in turn increases alcohol intake; d) the effect of simultaneous nicotine treatment during the transition to development of alcohol dependence and whether that is mediated by activation of neuronal ensembles in different parts of the brain. We found: the variable stress exposure caused cross sensitization with nicotine, increased the nicotine selfadministration behavior and decreased CREB activity in mesencephalic areas; the pretreatment with cocaine caused sensitization of cocaine motor response, locomotor cross-sensitization with nicotine, and increased motivation to nicotine intake; the pretreatment with nicotine increased the anxiety-like behavior and the motivation to ethanol intake; the simultaneous administration of nicotine and ethanol vapor exposure speed up the escalation of ethanol self-administration, increased the motivation and the compulsivity to ethanol intake and these behaviors could be related to activation of extended amygdala and mesocorticolimbic systems. Our results suggest that additional factors to the drug use such as stress and preexposure to other drug could increase the vulnerability to addiction.
A Filosofia Crítica de Bergson
(Universidade Federal de São Carlos, 2013-03-08)
Mascarenhas, Aristeu Laurêncio Cordeiro
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Marques, Silene Torres
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https://lattes.cnpq.br/4822141288006918
;
https://lattes.cnpq.br/9758890809066139
A importância da caracterização do módulo de elasticidade e do amortecimento de refratários por técnica dinâmica
(Universidade Federal de São Carlos, 2013-03-08)
Exposito, Caio Cesar Dente
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Rodrigues, José de Anchieta
;
https://lattes.cnpq.br/4000441989868775
;
https://lattes.cnpq.br/7830288943074148
This dissertation tries to understand the mechanisms involving damping phenomenon in ceramic refractory materials, using a dynamic technique. Damping proves to be an interesting parameter to analyze thermal shock damage in these sorts of materials. This technique would make possible to compare damping measurements with well-established techniques, such as the determination of modulus of elasticity modulus and modulus of rupture. Furthermore, this study attempts to understand the nonlinear phenomenon in damping and modulus of elasticity that depends on the vibrational amplitude. Aiming to understand how the variation on the vibration amplitude affects the mzasured values of damping and modulus of elasticity and how the nonlinear effect can be used in our advantage and in industrial daily routine, such as determining whether samples are damaged or not without a previous analysis or a standard material for reference. This study also approaches the influence of water in the nonlinear behavior of damping and modulus of elasticity. Thus, it would be possible to establish trustable and standardize procedures to measure those. In addition it would be possible to understand the drying process of ceramic refractory castables.
Óxidos mistos de magnésio e alumínio contendo lítio e cálcio como catalisadores para transesterificação etílica
(Universidade Federal de São Carlos, 2013-03-08)
Castro, Cínthia Soares de
;
Assaf, José Mansur
;
https://lattes.cnpq.br/9563312407691130
This work deals with the investigation on the production of heterogeneous catalysts of base surface properties applied for ethylic transestérification, aiming the biodiesel production. In the first and second chapters of this thesis, oxide catalysts containing Li were prepared from incipient wet impregnation method on different supports [SÍO2, MgO, Y-AI2O3 and Mg(Al)0 obtained from MgAl hydrotalcite], using optimized calcination conditions. The materials were characterized by XRD, N2 Fisissorption, ICP-OES, SEM, XPS and TPD of C02. The Li+ addition to the catalysts caused morphologic changes, surface area reduction and increased the oxides crystallite size. On the other hand, Li+ caused a steep increase in the oxide reactivities due to the increase in the base sites strength. These materials were evaluated as catalysts in the model transestérification reaction between methyl acetate and ethanol, under mild reaction conditions. The higher the lithium content in the Li/Mg(Al)0 catalysts, the higher the activity and the different studied supports deeply affected their performances for transestérification. The lithium reaction with the supports Y-AI2O3 and SÍO2 led to lithium aluminates and silicates, inactive for reaction. However, Li/MgO and Li/Mg(Al)0 showed to be very active, mainly due to the presence of large amounts of strong base sites (low coordination O2' anions). Li/Mg(Al)0 exhibited conversion even higher than that obtained for Li/MgO. Nevertheless, Li+ leaching was detected in the solution, which resulted in some homogeneous reaction. Indeed, the stability of the Li+ containing catalysts must be improved in order to be able to be used in the biodiesel production. In the third chapter of this thesis, Ca based oxides, namely Ca/MgAl, were synthesized by impregnation of different contents of Ca nitrate onto MgAl hidrotalcita, and followed by calcination. These materials were characterized by XRD, N2 Fisissorption, SEM-EDS and TPD of CO2 revealing that they are mainly comprised of a oxides mixture [CaO + Mg(Al)0] and that the surface CaO is partially hydrated and carbonated. These materials were also evaluated as catalysts in the model transestérification reaction between methyl acetate and ethanol. By increasing the Ca content on the catalysts, the activity is enhanced, probably because of the formation of a highly basic CaO, well dispersed over the support matrix. The Ca/Mg(Al)0 catalysts can be reused for at least 5 batch runs, with low Ca2+ leaching to the solution. Therefore, the Ca/Mg(Al)0 revealed to be promising candidates as heterogeneous catalysts for ethylic biodiesel production.
Escala metacognitiva para idosos: elaboração de itens e análise dos parâmetros psicométricos
(Universidade Federal de São Carlos, 2013-03-08)
França, Alex Bacadini
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Schelini, Patrícia Waltz
;
https://lattes.cnpq.br/6185333517392859
;
https://lattes.cnpq.br/9529429020135975
New studies and ways of intervening with the elderly population are emerging, given that we now know that aging not necessarily accompanied by cognitive decline. Along with studies on other aspects of aging, the metacognitive processes that coordinate cognitive performance, have begun to acquire importance in the literature over the past four decades. Metacognition represents thoughts and knowledge that individuals have about their own thoughts and cognitive processes. Two of its basic elements are: metacognitive knowledge, characterized by awareness of the processes and skills necessary to perform a given task, and control or cognitive self-regulation, which includes judgment about the effectiveness of the strategies being used and the establishment of new ones. Considering that metacognition facilitates the effective performance of activities and given the lack of Brazilian instruments to measure it, the main objective of the study is the development of a scale for the assessment of metacognition among the elderly and analysis of the validity and accuracy of this scale. The first stage of the study involved the development of the Metacognition Scale - Senior (EMETA-S), for each topic, the participant, must choose from four possible answers, the one that best characterizes him or her. The second stage aimed to investigate evidence of content validity. For this step, the instructions and the 74 original items of the instrument were sent to three experts. The index of agreement resulting from the analysis of the responses of the experts was 68%. The scale was also tested with a sample of 15 participants (60 aged years or over) in verify whether or not the instructions and the items were understandable, which resulted in some changes in the wording of the instructions and items, as well as in the descriptors of the scale, constituting the third stage of the study. A factor analysis performed on the data gathered with a sample of 194 participants revealed the presence of two factors: selfregulation and metacognitive knowledge, accounting for 27.18% of the variance in the responses. After exclusion of items that had factor loadings below 0.30, items misunderstood by participants and items that were highly similar to others items, the final version of the EMETA-S was composed of 27 items, with internal consistency of 0.85. No significant differences were found between the average performance with respect to variables such as gender, education and age of participants. The analysis of the validity and accuracy of the items indicated suitability of the concept initially proposed and good internal consistency of the scale.
Software educacional livre para análise não linear de pórticos planos em estruturas metálicas
(Universidade Federal de São Carlos, 2013-03-10)
Ormonde, Paulo Cavalcante
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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
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Freire, José Teixeira
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https://lattes.cnpq.br/2270677706718167
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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.