Browsing by Issue Date, starting with "2008-01-29"

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Gerenciamento de requisitos no ambiente Cocar
(Universidade Federal de São Carlos, 2008-01-29)
Thommazo, André Di
;
Fabbri, Sandra Camargo Pinto Ferraz
;
https://lattes.cnpq.br/2204086299921323
;
https://lattes.cnpq.br/6671188693231155
The objective of this work was to implement an initial version of a development support environment, based on the Use Case Model, named COCAR. The conception and the features of this environment are the result of several master papers. In the scope of this work, the main subject under study has been requirement management, although concerning its implementation, functionalities related to other previous works have also been contemplated. This environment prop up a few software development tasks, aiming at leveling up qualitity throughout the process. It is well know that one of the principal characteristics related to software product quality is that the product should meet the user requirements. In requirement engineering, the comunication between the user and the developer is stated in the Requirement Document and based on it, the requeriment can be modelled, for instance, by means of the Use Case Model. Despite the efforts invested in gathering requirements with the user, it is know that they are very likely to be ammended during the development process. A fundamental factor for the maintainance of the overall quality is that such modifications to the requirements occur in a monitored and foreseeable way. The ability to describe and follow a requirement life-cycle within the software development process is denominated requirement traceability. As the requirement document represents what binds the user and the developers, if traceability is obtained from that point onwards, the quality of the development process tend to increase and this permits monitoring since its earliest phases. This paper contribution to the implementation of the environment COCAR, includes features such as: registering the requirement of a system, generating of a Use Case Model, requirement management (mainly what concerns traceability between the Requirement Document and the Use Case Model), providing traceability metrics found in academic literature and the possibility of determining the relationship between the requirements. Based on the data provided by the tool, it is easy to perceive that they are highly relevant to any system development planning or following up, which can be an important pragmatic contribution to the improvement of software development and software products.
Educação, qualidade de vida e doença de Alzheimer : visões de idosos e seus familiares
(Universidade Federal de São Carlos, 2008-01-31)
Inouye, Keika
;
Pedrazzani, Elisete Silva
;
https://lattes.cnpq.br/7558935747100052
The purpose of the present was to identify perception differences regarding the quality of life (QL) of a group of aged patients with Alzheimer Disease (AD) and their family caregivers compared to groups who do not have the disease; and, consequently, identify the QL dimensions that merit more attention in psychoeducational intervention problems according to their perspective. The participants were subjects with 60 years of age or more, with no serious language disorders and who had been diagnosed with AD according to the current criteria in the Brazilian legislation, their respective family caregivers and people with equivalent age, gender, and home address. The participants were divided into four groups: GAD: aged individuals with AD (n=53); GADC: elderly without AD (n=53); GCARE: family caregivers (n=53); and GCAREC: non-caregivers (n=53). The instruments used for data collection were: Participant Characteristics Form; Interview Script; Brazil Criteria Questionnaire; and Evaluation Scale for Quality of Life in Alzheimer s Disease (QoL-AD). The obtained data were typed into a databank using the Statistical Program for Social Sciences for Windows 10.0 for statistical analyses (Student s t-test, and Pearson s Chi-square for matched group analyses; Wicoxon, Mann-Whitney, and Spearman Correlation for objectives). The results showed that: (a) the socio-demographic profile of the sample of aged patients with AD is predominantly women, married, with children, illiterate or with incomplete elementary school, from classes C or D , do not exercise, and have no access to alternative health services like occupational therapy, physiotherapy, and psychological treatment; (b) in general, the family caregiver dedicates him or herself full-time to looking after the patient; they are women, wives or daughters, from classes C or D , who find their strongest encouragement regarding QL in sharing the tasks of looking after the patient, in religious groups, or exercising; (c) there are significant differences between the total QL score of aged patients with AD and their family caregivers compared to equivalent samples; (d) there is a correlation between the general QL perception of the aged patient with AD and his or her family caregiver (r=0.406); (e) the general scores obtained by the QoL-AD in the family version about the elderly are not statistically different from those in the version of the aged patient, however the dimensions memory and you in general presented statistically significant differences; (f) the QL dimensions perceived with more negativism and, which, therefore, merit attention in the intervention programs are: for family caregivers: physical health, disposition, mood, memory, you in general, and the ability to take part in leisure activities; and for the elderly patients with AD: physical health, disposition, mood, housing, memory, family, marriage, friends, you in general, the ability to perform chores and take part in leisure activities, money, and life in general. The study findings contribute in making the patient and caregiver education be grounded on their own views, preparing them to cope with dignity the constant changes that time and the environment pose on their bodies, histories, and skills and abilities. Through joint efforts, we can develop interventions to guarantee that negative values and stereotypes associated with AD be assigned new meanings.
Desenvolvimento de célula hidrotérmica para obtenção de compostos nanocristalinos de alta pureza
(Universidade Federal de São Carlos, 2008-01-31)
Barrado, Cristiano Morita
;
Leite, Edson Roberto
;
https://lattes.cnpq.br/1025598529469393
;
https://lattes.cnpq.br/1481467844050222
Due to the growing advances obtained in nanomaterials science, almost all technological sectors have invested in nanotechnology. It is expected technological improvements in a wide range of products, from the most conventional to nanostructured, as nanocomposites and nanoelectronics materials. Several techniques have been proposed in the literature aiming the search of these materials in a high purity grade. However, some problems to this goal persist, as the use of reactants with impurities of hard elimination and difficulties in the crystallization process, implying in a poor particle growth control. The hydrothermal synthesis has a great advantage for using few steps during the synthesis process and lower temperatures of prodution. Despite the advantages in the process, the cost of commercial equipments not adequated to this synthesis is around US$ 10,000.00 to 20,000.00, expensive values to Brazilian conditions. Also, there is not a brazilian equipment with adequate control and manipulability so far. These facts impair the dissemination of the processing technique. In this way, the main goal of this project is the construction of a hydrothermal system using brazilian materials and its application to the OPM-Hydrothermal hybrid synthesis to obtain technological materials. The association of the techniques enabled the union of the main features of each method leading to a high purity and high crystalline product, in soft solution condition in which the amorphous precipitate obtained by the chemically clean route OPM was crystallized in a soft process (hydrothermal), avoiding calcination. Crystalline phases of TiO2 were obtained at 200oC / 2 hours as rutile nanorods (pH = 0) and anatase from nanoparticles (pH = 2 to 8) to nanorods (pH = 10) and nanoneedles (pH = 12). Pure crystalline PbTiO3 and Pb(Zr50Ti50)O3 were obtained with cubic structure at 150 and 200oC / 2 hours, depending on the Pb stoichiometry adopted.
Ocorrência de agravos músculo - esqueléticos em áreas públicas de lazer : a experiência da pista de saúde da Universidade Federal de São Carlos
(Universidade Federal de São Carlos, 2008-01-31)
Simões, Nelcy Vera Nunes
;
Oishi, Jorge
;
https://lattes.cnpq.br/1417328590472858
;
https://lattes.cnpq.br/8537548846976080
This study objectives were to characterize and identify the occurrence of muscle skeletical injury on physical activity praticers that make use of the Health Track at the Federal University of São Carlos (HT/UFSCar). The study was a nonprobabilistic descriptive observation sample of individuals who makes use of the HT/UFSCar. There were 376 subjects 220 male and 156 female, between 11 and 82 years old. The data was collected during six consecutive months. The statistic work included as much variables of descriptive analyses as the study of their possible association and then applied to the parametric test Qui-square of Pearson. The results showed that from the 376 subjects, 126 (33,51%) subjects suffered injuries during the observation while 250 (66,49%) did not. It was also verified that variables such as : Frequency, Intensity, Duration, Physical Activity, Gender, Body Mass, School Degree and Social Class are significantly associate to the incidence of injuries to the public users at the HT/UFSCar. Still, the men practiced more physical activities and suffered more injuries than the women. Conclusion: The association between the investigated variables (overweight, number of turns at the track, social class and the frequency at the HT/UFSCar - over 5 times per week) and the type of PA practiced were significant to injuries occurred (57.48%) during the development of this study.
A participação de assessoria técnica-política e da CAIXA na produção de moradias em assentamentos rurais. Casos: Fusquinha, Nova Esperança e Pirituba 2
(Universidade Federal de São Carlos, 2008-02-08)
Almeida, Arildo José de
;
Shimbo, Ioshiaqui
;
https://lattes.cnpq.br/6315114291031702
The theme treated on this work is the participation of the political-technical assistance and also the CAIXA ECONÔMICA FEDERAL technicians in the housing production in rural encampments. Only with the institutionalization of the Housing Subsidy Program of Rural Social Interest, since 2000, the housing production in the encampments begins to get visible outlines in the face of the rural housing debit, which is estimated in 1.7 millions of houses and represents about 28% of the lack and demand of houses in the country. The housing production to the encampments population, generated by the land reform, contains severe knowledge gaps related to the comprehension of how the agents involved participated in the production process. The technical assistance action, provided by the financing organs, is vital in the whole rural housing production process. It has an essential role in the evaluation of the costs of the building material used, in the project development mechanism and in the administration of the other elements related to the rural housing production, since most of the researches on participation, management and production of houses is concentrated in the urban area. PSH RURAL being carried out by CAIXA in agreement with INCRA has produced 1,134 houses in encampments, in 18 projects distributed in 11 units of the Federation. The research approaches the three projects of PSH RURAL which were executed in São Paulo state under the following designations and locations: Fusquinha Encampment/Teodoro Sampaio, Pirituba Encampment/Itapeva and Nova Esperança Encampment/São José dos Campos. The objective of this research is analysing the participation of the technical assistance and of the CAIXA technicians in the management process of rural housing enterprise. This work intends, with the study of the three cases, to understand and to explain the participation of the technicians who worked with the settlement people and the CAIXA technicians in rural housing production, as well to verify the production costs of these housing units when compared to the Pró-Lar rural program from CDHU. The research strategy used by this work consists in the case study, with raising research and quantitative and qualitative evidences. The unit being analyzed is the technical assistance of the settled families and the CAIXA technicians. The information collecting procedure conducted the research and the information survey directly with the involved groups: families assessors, the CAIXA technicians and benefited families. With the literature review, the evidence survey, comparison and data analysis, observation of the fields and interviews held in the three cases, it was possible to confirm that the technical assistance to the families and the CAIXA technicians had different behavior in the development of the works related to the families and in the management of the housing production. It was possible to conclude that although PSH Rural is a national covering program, the CAIXA technicians didn t have homogeneity in the project analysis, assistance and resources releasing. In the same sense, the assistance to the families, even producing larger houses that the CDHU ones, had a different behavior related to the participation and management of the families in the housing building process.
As não-coincidências interlocutivas do dizer de sujeitos hispanos-falantes em discursividades brasileiras : seus reflexos em formulações imaginárias
(Universidade Federal de São Carlos, 2008-02-11)
Morais, Valdete de Lima Ank
;
Viana, Nelson
;
https://lattes.cnpq.br/6252579012192711
;
https://lattes.cnpq.br/9571291100100998
Based upon French Discourse Analysis, our purpose in this study is bring and analyze discursive sentences produced by Spanish native speakers, symptoms of their enunciative projections, imaginary and discursive memories, in relation to their concepts, impressions, allusions concerning Portuguese language and Spanish language, in situations of immersion and interlocution in Brazilian contexts. We start from Serrani-Infante s (1998) formulations, that the subject, when speaking another language, becomes part of the identification process in the target language discursive formations that build up the happening of enunciative positions. In order to realize this study it is necessary to understand the insertion of the Spanish native speaker in Brazilian Portuguese language in the immersion process as a subjective process (SERRANI, 1997b), which requires the subjectivity from the Spanish native speaker and will submit him to inscribe himself in different enunciative positions, missteps, displacements and transference motions (CELADA, 2004). Thus, we understand that part of these enunciative positions is associated with the Spanish native speaker s mother tongue, with their own language positions, and that many of them are brought up in the encounter with the foreign language, leading the subject to conflict situations generated by the distinct understanding of reality linked to those two languages. These conflict situations, concerning the processes of production and attribution of meanings by native speakers of Spanish as they enunciate in Brazilian Portuguese language, constitute the focus of this study.
O problema da imaginação nas duas edições da "dedução transcendental das categorias"
(Universidade Federal de São Carlos, 2008-02-11)
Vaccari, Ulisses Razzante
;
Santos, Paulo Roberto Licht dos
;
https://lattes.cnpq.br/1681044854219924
;
https://lattes.cnpq.br/0178298579185581
This thesis is designed to examine to what extent the meaning that in the 1781 issue was clearly assigned to transcendental imagination was changed by Kant in the second issue of the Critique of pure reason as of 1787. Obviously, the examination of imagination does not cover the Critique entirely; it is limited to the section transcendental deduction of the pure understanding concepts in which the philosopher provides elements for understanding not only the role assigned to imagination but also the other faculties of the anima. A comparison of both versions of this transcendental deduction is thus meant to show that the significance attributed by Kant to imagination in the 1781 transcendental deduction (A) is not lost when the afore-mentioned section is rephrased in 1787 (B). However, the basis for this is paragraph 10 of the Critique, i.e., the metaphysical deduction of categories, which goes to show that this paragraph already bears a systematic reading of the range of faculties, which permits the need for imagination to be seen in its task of synthesis of a general mannifold. It is this need for imagination in paragraph 10 that is intended to be shown in both versions of the transcendental deduction. Therefore, what would distinguish the approach to imagination between the latter and the former is that the former (A) had taken the path of the empiric genesis of representations, and for this very reason, is required to appoint imagination as the reproductive faculty avant-la-lettre. On the contrary, since in 1787 the philosopher was tending to advance to the opposite direction, namely, demonstrate the objective validity of representations, the deduction chooses to only expose imagination in its transcendental character to the extent that its boundaries with judgment get blurred.
Decomposição de Bony e um teorema de regularidade para soluções do sistema de Navier-Stokes
(Universidade Federal de São Carlos, 2008-02-13)
Silva, Rômel da Rosa da
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Santos Filho, José Ruidival Soares dos
;
https://lattes.cnpq.br/6112529384454347
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https://lattes.cnpq.br/3804309368611422
Our main goal is to present a dissertation about the J.-M. Bony's decom- position for the product of distributions and as application a regularity result, due to J.-Y. Chemin and N. Lerner, for solutions of the Navier-Stokes's system.
Crianças usuárias de implante coclear: desempenho acadêmico, expectativas dos pais e dos professores
(Universidade Federal de São Carlos, 2008-02-13)
Brazorotto, Joseli Soares
;
Costa, Maria da Piedade Resende da
;
https://lattes.cnpq.br/8038447445698925
Cochlear implant (C.I) is one of the technological resources currently used in the (re)habilitation of deaf and hard-of hearing children. Follow-up studies have carried through, in search of evaluating which results in auditory abilities and oral language are reached for cochlear implanted children. However, concerning to the academic performance of such children the developed works are scarce, especially in Brazil.The aims of this study were to describe and analyze the academic performance of cochlear implanted children, with ages varying from 6 to 12 and carry out results associations analysis of academic performance considering the follow independent variables: age, grade, detection threshold´s voice, time of cochlear implant use, time of sensorial privation, and the biggest level´s school of the family. Moreover, this study also verified the parent´s and teacher´s informations and expectatives concerning to academic performance of this children. To reaches this aim it was done collection and analyse of datas from those children, individual evaluations of academic performance by means of standardy tests and at same time, was applied handbooks with parents and teachers of children took part in. Dates were analysed quantitative and qualitative and was applied the appropriate statistic treatment. Results showed that cochlear implanted children had smaller performance from the normality to they age and grade and statistically association was identificated between the TDE tests scores and the grade. Concerning to the parents opinions it was noticed the mainly worries refered to reading and writing learning, classroom´s activities participation as listeners pupils and also concerns about broke´s gadget (C.I.).Regarding to the informations and expectations of theachers, the conclusions are that it was scarcing of information regarding the cochlear implant, and the potential for the learning of the cochlear implanted children was considered the same or lower than average, nevertheless, it was also verified positive expectations with reference to the cochlear implanted chidren learning potential, specially to the youngest children.
Análises de meroterpenos produzidos por Penicillium brasilianum
(Universidade Federal de São Carlos, 2008-02-14)
Eugênio, Patrícia de Fátima Menegoci
;
Rodrigues Filho, Edson
;
https://lattes.cnpq.br/3667941735597178
;
https://lattes.cnpq.br/5737232375094052
This work describes the use of the high performance liquid cromatography (HPLC) technic coupled to the mass spectrometry technique for the analysis of fungal extracts, and the main purpose was the detection of meroterpens produced by P. Brasilianum. The fungal species P. Brasilianum was cultivated in a variety of artificial culture media: rice, wheat, maize, rice broth, solid decanted from rice broth and liquid medium Czapeck. In all the culture media tested the fungus presented a very good development, and also, the ions related to the meroterpens in study were detected in all the fungal extracts produced by these cultivations, except in Czapeck medium. The atmospheric pressure chemical ionization (APCI) was compared to the electrospray ionization, for the meroterpens analysis, and the result obtained was a great increase in detection power for this class of compounds, with the use of APCI. The P. brasilianum fungus was cultivated in Czapeck medium in the presence of Pinus taeda resin, alizarin, oleanolic, benzoic, salicylic, 2,5-dihydroxybenzoic, 2,6-dihydroxy-4-methyl-benzoic, 3,5-dinitrosalicylic, 3,5-dinitrobenzoic and ferulic acids, and 2 ,4 ,6 -trihydroxyacetophenone. The presence of these exogenous aditives modified the fungal metabolic profile, because the cromatographic profiles of the extracts produced showed a differentiation, in comparation to the fungal extract without aditive. Only the fungal extract produced in the presence of ferulic acid presented the meroterpens PSP-3 and PSP-8. The fungal extracts produced without any aditive also did not present meroterpens.
Sistema de coordenação de ordens de produção baseado na estratégia bata de manufatura
(Universidade Federal de São Carlos, 2008-02-15)
Bianco, Vinícius Soares Del
;
Fernandes, Flavio Cesar Faria
This work presents a proposal of implementing an Ordering System based on the Bata Manufacturing Strategy (BMS). The aim is to verify the interference and effectiveness of this system on the activities of the Production Planning and Control of a thermoplastics process factory. Its theory s reference comes from the Bata Manufacturing Strategy (BMS), the Ordering Systems (OS) and the Performance Measurement Systems (PMS). The Action- Research method was used to verify the relation between the ideal model and the one obtained when put on a practical experience. Firstly, a model system is proposed on what this work was developed, its main features and details that connect the BSM, the OS and the PMS. Then, an application example of the system in a thermoplastics process factory is showed using the blow molding process of High Density Polyethylene and Polyvinyl Chloride bottles for cosmetics industries and drugstores. Furthermore, the main results obtained when implementing this system are also presented as well as an evaluation of the procedures created to control the material and human resources and how these controls influence the Production Planning and Control activities of this factory. Another important point of this work is also to present a new approach on how to implement the Bata Manufacturing Strategy
Construção e formalização do saber em montagem estrutural de aeronaves
(Universidade Federal de São Carlos, 2008-02-15)
Souza, Túlio Oliveira de
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Menegon, Nilton Luiz
;
https://lattes.cnpq.br/5461487552981919
;
https://lattes.cnpq.br/8523738364469509
The aim of this study was to understand the technique construction role as well as the knowledge in consolidation of the aeronautics design and upbringing productive competence. In this way, it identified the representations from different actors over the constraints that acted in the start of the aeronautics production, and turned evident in the strategies adopted by assemblers, and managers facing the constraints. It was done an ergonomic analysis of this work, based on observations, interviews, surveys and confrontation group. The riveter assembler, while realize his work activity provoke a sense motor action and promotes a confrontation of intentions, gesture and results producing news ways of know-how . The new know-how , therefore, seem to comply an absortion cycle by the productive organization which is shaped by the product maturity process. The viability of manufacturability makes itself up to the subject ability to incorporate adjustments or indicates changes. The system stability and aircraft own homologation derives from the technique formation, the meta-functional activity and the incorporation of the assemblers knowledge.
Estratégia de marcas no varejo de alimentos: concepção e gestão de marcas próprias na Inglaterra e no Brasil
(Universidade Federal de São Carlos, 2008-02-15)
Paula, Verônica Angélica Freitas de
;
Silva, Andrea Lago da
;
https://lattes.cnpq.br/0116513470932691
In the current competitive and dynamic environment, with constant changes concerning consumers' preferences, competitors' actions and also political and economical changes in different countries, marketing strategies are even more relevant as the market has reached a more significant role in the definition of the tendencies and the success or failure of companies. Among the marketing strategies, in this paper, branding strategies deserve more attention as they are also responsible to assure the company sustainable competitive advantage. Considering the retail sector, the brand is also one of the most important concepts in the marketing strategy, mainly because consumers usually make different analysis about the products from their brands, especially about image perception, price, value and quality. The identity of the brand's owner has a significant impact over the impressions consumers may have about this brand. Therefore, the decision about brands patronage is very important for retailers including the choice between offering national brands (that belong to manufacturers) and/or private labels (that belong to the retailers). The focus on this thesis concerns the study of private labels strategy in food retailers in England and in Brazil. In order to achieve the objectives of this study, a qualitative approach and the case study procedure have been used. As the empirical research was developed with different retailers and suppliers in England and in Brazil, the research strategy used was multiple cases study, as multiple experiments (with replication logic). For the interviews, semi-structured scripts were used. The results from the empirical research were presented individually by company and then by country. The results from both countries were analysed in a comparative way. From the comparative analysis, it was possible to identify the distinct characteristics of each country, as well as the factors responsible for the differences in retail and private labels. After the comparative analysis, it was possible to elaborate recommendations to help and guide retailers that are analysing the possibility to adopt private label strategies. A model was developed to summarize the main elements to be considered by food retailers during the decision of adopting private labels. Finally, limitations of the research and suggestions for further researches were presented.
Resolução de problemas sociais com adolescentes em conflito com a lei: estratégias de mensuração e intervenção
(Universidade Federal de São Carlos, 2008-02-15)
Padovani, Ricardo da Costa
;
Williams, Lúcia Cavalcanti de Albuquerque
;
https://lattes.cnpq.br/6962646759651464
;
https://lattes.cnpq.br/5442923292795249
Young offenders deficits in problem solving skills are described as one of the characteristics of this population. However, there is no data in the Brazilian literature measuring this variable. This study had two aims. Firstly, a group intervention with young offenders was conducted with the aims of promoting the discrimination and emission of competent social responses associated with their psychosocial well-being (Study 1). Six male young offenders took part of the intervention program. The study was conducted in a young offenders Detention Center in the interior of São Paulo State, Brazil. Instruments used to assess the intervention were: Guided Interview, Beck Depression Inventory (BDI), Beck Anxiety Inventory (BAI), Beck Hopelessness Scale (BHS), Social Problem-Solving Inventory-Revised (SPSI-R) and, School Performance Test. The intervention program consisted of three pre-intervention sessions to gather data, and ten intervention sessions in problem-solving skills training, followed by a three month post-intervention follow-up. Results indicated a history of school failure and violence victimization, as well as the use of alcohol and drugs, and involvement in aggressive episodes. High level drop-out rates was observed in this study: only two participants were present in all phases of the intervention. In the pre-test, five participants indicated anxiety and depression, and four participants indicated hopelessness. In the post-test, one participant indicated a decrease of depression, anxiety and hopelessness; the other participant maintained of depression levels (in the low range), anxiety (low) and hopelessness (low). Five participants took part of the Follow- Up. All participants indicated a decrease of depression in that phase. In terms of anxiety, in the participants who were present in all phases, one decreased his level (from severe to low), and the other presented the same performance (low). Other participants indicated: maintenance (low and moderate) or an increase (low to moderate). In terms of hopelessness, among the participants who were present in all phases, the same performance was maintained (absence). The others showed: maintenance (moderate/low) and a decrease (severe/moderate) of performance. The Social Problem- Solving Inventory-Revised data showed that four participants performance were in the average range of the normal group, and two had deficits in this area. In post-test, one participant increased his performance, and the other maintained it. In the Follow-Up, the performance varied from average to much above average. In spite of the study s methodological limitations, this is the first study in Brazil to investigate group social problem solving skills with young offenders in a Detention Center, and the first to utilize one specific instrument to analyze social problem repertory solving in this population. The second study adapted to Portuguese the Social Problem-Solving Inventory-Revised (SPSI-R), and investigated its evidence of criteria and content validity. Seventy six male adolescents took part of study, being 38 offenders and 38 no-offenders. The study was conducted in a Young Offenders Center, and at a public school in the city of São Carlos en São Paulo State. The instrument used to assess the study was the Social Problem- Solving Inventory-Revised (SPSI-R). The instrument was applied in group, and the time of application was approximately 30 minutes. In terms of content validity, the study showed a 95% agreement among assessors. In terms of criteria validity, the results showed that the instrument could discriminate offenders from the non-offender population. The development of intervention programs and instruments specific to this population is much needed, as the numbers of studies in this area is reduced in Brazil.
Modelos de regressão logística clássica, Bayesiana e redes neurais para Credit Scoring
(Universidade Federal de São Carlos, 2008-02-15)
Mendonça, Tiago Silva
;
Louzada Neto, Francisco
;
https://lattes.cnpq.br/0994050156415890
;
https://lattes.cnpq.br/2249769751685645
Important advances have been achieved in the granting of credit, however, the problem of identifying good customers for the granting of credit does not provide a definitive solution. Several techniques were presented and are being developed, each presents its characteristics, advantages and disadvantages as to their discrimination power, robustness, ease of implementation and possibility of interpretation. This work presents three techniques for the classification of defaults in models of Credit Score, Classical Logistic Regression, Bayesian Logistic Regression with no prior information and Artificial Neural Networks with a few different architectures. The main objective of the study is to compare the performance of these techniques in the identification of customers default. For this, four metrics were used for comparison of models: predictive capacity, ROC Curve, Statistics of Kolmogorov Smirnov and capacity of hit models. Two data bases were used, an artificial bank and a real bank. The database was constructed artificially based on an article by Breiman that generates the explanatory variables from a multivariate normal distribution and the actual database used is a problem with Credit Score of a financial institution that operates in the retail Brazilian market more than twenty years.
Determinação espectofométrica de hipoclorito em alvejantes e cloro em águas de abastecimento empregando sistema em fluxo por multicomutação e células convencional e de longo caminho óptico
(Universidade Federal de São Carlos, 2008-02-18)
Salami, Fernanda Helena
;
Fatibello Filho, Orlando
;
https://lattes.cnpq.br/9859737944357808
;
https://lattes.cnpq.br/6112526858589406
A multicommutation flow system for the spectrophotometric determination of hypochlorite in bleaching products using a cell with pathlength of 1 cm is proposed in this work. In this system, N,N-diethyl-p-phenylenediamine (DPD) reacts with hypochlorite and the product was monitored at 515 nm. The analytical curve for hypochlorite was linear in concentration range from 2.68x10-5 to 1.88x10-4 mol L-1 (2 to 14 mg L-1) with a detection limit of 6.84x10-6 mol L-1 (0.51 mg L-1). The sampling rate of 45 h-1 and a relative standard deviation of 1.4 % (n = 10), were obtained. The recovery of this analyte ranged from 97% to 102.5%. The results found for six bleaching products using the proposed multicommutated flow system agreed with those data obtained using a reference method (iodometric titration) at the 95 % confidence level. A multicommutation flow system for the spectrophotometric determination of chlorine in water samples using a cell with 100 cm of pathlength is also proposed in this work. In this system, dichloridrate orto-Tolidine (3,3-dimethyl bencidine) reacts with chlorine and the product was monitored at 438 nm. The analytical curve for hypochlorite was linear in the concentration range from 1.34x10-6 to 2.01x10-5 mol L-1 (0.1 to 1.5 mg L-1) with a detection limit of 9.4x10-8 mol L-1 (7.0x10-3 mg L-1). The sampling rate of 45 h-1 and a relative standard deviation of 1.0 % (n = 15), were obtained. The recovery of this analyte ranged from 96.8% to 104.6%. The results found for six water samples from São Carlos city using the proposed method agreed with those data obtained using the method used by CETESB (Kit DPD colorimetric) at the 95 % confidence level. The long pathlength optic system is composed by amorphous fluorpolymeric Teflon AF2400tube with a 100 cm of length and refraction index smaller than the water one that was used as wave guide, aiming to minimize radiation losses. Finally, flow system involving multicommutation was developed to increase analytical features, decrease the reagents consumption and residual production.
Entre a proposta e o pretexto da qualidade do ensino: uma leitura sobre os liames da valorização docente a partir do FUNDEF
(Universidade Federal de São Carlos, 2008-02-18)
Ramos, Géssica Priscila
;
Zuin, Antônio Álvaro Soares
;
https://lattes.cnpq.br/5543562307373287
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https://lattes.cnpq.br/2573340489166336
This research purpose is to verify the relation established between teacher valorization and educational quality in the FUNDEF creation bases and in the São Paulo state and municipal implantation, analyzing how this relationship reflects the teacher's valorization. This research is based on interviews and bibliographic, documented and speaking analysis, having Gramsci as main reference. In the Fernando Henrique Cardoso government the teacher was considered the major educational quality agent. However, this same government reduced the educational investments, according to the established goals to achieve the State Reform, impacting directly in the educational quality and teacher s valorization. In the São Paulo State, based on its ample Federal Government politic relationship, despite of its intense changes in the São Paulo pedagogic-organizational model, its initiative wasn t followed proportionally by the financials investments according to the expected, explaining the speech increasing performed between the teacher s valorization and educational quality. Related to the municipal research, this instance was limited to follow the Federal and the São Paulo State directions based on its inexperienced administrative skills in the educational area, reproducing insufficient teacher s valorization actions, under the idea to achieve local educational quality. Thus, in spite of the teacher to have your role officially outstanding in the period, less and less the educational resolution problems were approached in political-financial performance terms of the Union, of States and of the Municipal districts. This discussion was transposed strictly for a pedagogic and educational ambit, of the teacher's responsibility, and the teacher's valorization, linked to the meritocratic principles, becoming ideologically the bad or good educational quality reason, and not part of this process. Key-words: teacher valorization, educational quality, FUNDEF; educational politics; decade of 90
Expansão dos condomínios horizontais e loteamentos fechados em São José do Rio Preto - SP
(Universidade Federal de São Carlos, 2008-02-19)
Barroso, Luiz Fernando de Lemos
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Francisco, José
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https://lattes.cnpq.br/0330065027402518
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https://lattes.cnpq.br/8126379589269614
In the last fifty years there has been a high exodus rural in Bazil and from the last decades of the last century are witnessing the exodus urban classes of the better income out of the center, seeking enclosed spaces, which seek to protect and isolate whether the unwanted (violence, poverty, insecurity etc), creating private island of privileges. This research aim is to study the dynamics of production and expansion of gated communities, having as a study case the city of São José do Rio Preto, which presents a dynamic of vertiginous growth of gated communities in their urban area (48 gated communities). The main is to study the production of the businesses, understand their origins, evolution, causal relationship of that production and analyze the specific laws.
Federalismo e reforma tributária no governo de Fernando Henrique Cardoso (1994-2002)
(Universidade Federal de São Carlos, 2008-02-20)
Colombo, Luciléia Aparecida
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Noronha, Eduardo Garuti
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https://lattes.cnpq.br/6908348693613769
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https://lattes.cnpq.br/9421549755358841
Nowadays, the flux method is one of the most widely used techniques promote growth of YBa2Cu3O7-ä single crystal superconductor. By using the material in a melted state, the reactions due to temperature are possible. To prepare single crystal superconductors of the family Y-Ba-Cu-O, a long period of time is necessary to melt the material in adequate conditions. In order to do this a satisfactory performance of the crucible is required; it must be resistant to any kind of chemical attack. In this work some materials used were investigated in crucibles. Platinum, gold (noble metals), oxides like Al2O3, ZrO2 showed problems when used in processing Y123 superconductors. To avoid this problem the zirconiaytria system is largely applied. Some authors have investigated the SnO2 crucible, but they found problems related to the densification of the SnO2. Recently, it was discovered that SnO2 can be densified without liquid phase, showing 99,7% of the theoretical density when sinterized up to 1300°C. Then, this condition was used to produce crucibles by slip casting to form the YBa2Cu3O7-ä single crystal superconductors without contamination. It was observed, in a first instance, that SnO2 crucibles are resistant to chemical attack of the flux that is rich in barium and copper. During the process it was observed an interface wall between the vial and the flux formed by BaSnO3. This protection is formed after heat treatment at 1025°C during 4, 17 and 24 hours. By increasing the treatment time (up to 24 hours), it was observed that the wall thickness increased too and it was possible stablish a relation between treatment time/thickness wall (that defines the resistance of chemical attack). This enabled the determination of the SnO2 crucible resistance to corrosion, under the flux condition. The second part of this work involved the Y123 single crystal growth. After produced, they were analysed by x-ray diffraction and SEM with microanalysis in cross sections of the crucibles to observe the BaSnO3 interface. It was observed that single crystals were not contaminated by tin, and they were analyzed through measuring magnetization vs. Temperature. The single crystal showed a critical temperature (Tc) around 90,5K with a transition width (Tc) around 19,5K before treatment with an oxygen flux at 450°C. After seven days of a second treatment under the same conditions, the Tc was increased to 92K with a decreasing to 4,5K in Tc. The results showed that SnO2 vials are resistant to BaO-CuO flux and appropriate to single crystal growth in YBa2Cu3O7-ä superconductors without external.
Desenvolvimento de procedimentos em fluxo para a determinação de Captopril, Dipirona e Paracetamol envolvendo multicomutação e inibição da quimiluminêscencia
(Universidade Federal de São Carlos, 2008-02-20)
Oliveira, Geiser Gabriel de
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Fatibello Filho, Orlando
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https://lattes.cnpq.br/9859737944357808
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https://lattes.cnpq.br/6504190570083114
In the present work, analytical procedures were developed using the multicomutação concept and inhibition of the chemilumenescence for the pharmaceuticals determination, such as, captopril, dipirona and paracetamol. For the control of the analysis module and acquisitions of data a microcomputer was used Pentiun 233 MHz equipped with an electronic interface (PCL - 711S), through programs in language Lab - View 7.0. The detection module consists of a cell of flow of polyethylene (in spiral) of 100 cm, a silicon fotodiodo (OSD-50E) and an electronic device (I model FAC 500), for the conditioning and amplification of the signs chemiluminescents. The analytical procedure was used for captopril determination in pharmaceutical formulations, the system bases on the inhibition of the sign chemiluminescence, between the luminol and the hypochlorite of sodium, when inserting the drug in the system. The analytical curve obtained was linear from 7,5 x 10-6 to 1,0 x 10-4 mol L-1 and detection limit was 9,0 x 10-7 mol L-1 with an analytical frequency of 180 h-1. The same system was used for dipirona determination, that system bases on the oxidation of the dipirona for the hexacianoferrate (III) of potassium, that is the catalyst of the reaction among the luminol-H2O2 happening like this the decrease of the sign quimiluminescente. The analytical curve presented a lineal strip of 1,0 x 10-4 to 9,0 x 10-4 mol L-1 with limit of detection of 9,0 x 10-5 mol L-1 obtaining an analytical frequency of 215 h-1. The studied analytical procedure, for the paracetamol determination in pharmaceutical formulations bases on the consumption of the reagent in excess of hypochlorite of sodium for the drugs, happening from that way to the decrease of the magnitude of the analytical sign. After the optimization of the system it was obtained a lineal strip of answer of 5,0 x 10-6 to 9,0 x 10 -5 mol L-1 with a limit of detection of 2,35 x 10-6 mol L-1 and a frequency of sampling of 180 determinations per hour. In the procedures quimiluminescentes involving multicommutation system stands out the bass consumption of reagents as well as a good analytical frequency.