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Estudos de parâmetros de qualidade para cerâmica estrutural vermelha
(Universidade Federal de São Carlos, 2003-12-08)
Paschoal, José Antonio Armani
;
Sales, Almir
;
https://lattes.cnpq.br/7377787166073311
Civil construction demands quality in terms of reduction of waste and costs. Red ceramic, bricks and tiles have been targets in this effort. The Quality Programs seek to certify ceramics within norms (NBR ISO 9000), whose objectives are the controls demanded for these products. INMETRO and the agent of certification, Ceramic Center of Brazil (CCB), enforce, by means of laboratory analyses, the ceramic product of certified businesses. This work aims to evaluate the quality control system and manufacturing process of red ceramic tile, contributing to micro and small businesses by completing laboratory analyses of raw materials and end products of industries that present difficulties in terms of such controls. By means of a diagnostic fluxogram, evaluating and orientating, the operation of the process is optimized in full or in part. Of the 12 businesses utilized, distributed among 4 regions of the state of São Paulo, 3 were certified in the Quality System, 3 in the certification process, and 6 still uninitiated. The results found indicate the importance of the Quality System in businesses that have the adopted the norms, for which they have efficient controls, in terms of product conformity and reduction of waste. The raw materials of the state of São Paulo are of good quality for ceramic tiles and require only technological accompaniment. From these completed analyses it was possible to develop a diagnostic fluxogram that permits evaluation of quality and the production process, to be inserted in a "Palm Top", where electronically it can be applied promptly at each step of fabrication.
Problema relativístico de dois corpos
(Universidade Federal de São Carlos, 2003-12-08)
Hollander, Efrain Buksman
;
Luca Filho, Jayme Vicente de
;
https://lattes.cnpq.br/3649741795366660
We study the relativistic two-body problem of the action-at-a-distance electrodynamics. This dynamical system appeared 100 years ago as a time-symmetric relativistic motion and acquired the status of electrodynamics in the 1940 s by the works of Dirac, Wheeler and Feynman. The equations of motion for this problem are delay equations involving retarded and advanced arguments symmetrically. We outline our dynamical studies with an emphasis on the physics of this complex conservative dynamical system. We study the following versions of this electromagnetic two-body problem: (i) For the case of two arbitrary masses with attractive interaction (hydrogen atom), we develop a numerical method to integrate the three-dimensional motion. This method has a very limited applicability and could not answer several dynamical questions. We calculated numerically some orbits. The diﬃculties of this complex case suggested that we should restrict the study to the simpler problem of straight-line orbits and equal masses ( (ii) and (iii) ). (ii) We study the colinear orbits of the repulsive problem of two electrons (two electrons moving on the same line). We obtain an analytical approximation for the low-energy colinear orbits. We also develop a stable numerical method based on steepest-descent minimization. Using this method we calculated the orbits numerically for several energies. We also found a two-degree-of-freedom implicit Hamiltonian formalism to describe this colinear motion. (iii) For the attractive problem with equal masses, we derive an equation of motion that is regular at the collision. Our method uses the energy constant related to the Poincaré invariance of the theory to motivate the regularizing coordinate transformation and to remove infinities from the equation of motion. The collision orbits are calculated numerically using the regular equation adapted in a self-consistent minimization method (a stable numerical method that chooses only nonrunaway orbits). We compare our regularization of this Poincaré-invariant case to the Levi-Civita regularization of the Galilei-invariant Kepler problem.
Estruturação das lições aprendidas na implementação da produção enxuta na Alcoa de Poços de Caldas
(Universidade Federal de São Carlos, 2003-12-08)
Simão, Luiz Augusto Peito Macedo
;
Alliprandini, Dário Henrique
This work fix a framework to identified and organized the lessons learned during the ABS (Alcoa Business System) implementation on Alcoa Pocos de Caldas. The intention was to capture, to codify and to make available the knowledge insert in this process, for the Alcoa Company, looking for the continuo improvement inside the process, and for other companies, to repeated this process over the Alcoa experience. The idea is to use the knowledge that Alcoa got and organized on factors that become easier or harder the ABS implementation. To achieve this objective was develop a framework that involves the knowledge management, organizational learning and lean production concepts. The most important thing in this framework is: Get information from a actual situation (ABS in use) and using knowledge management and learning organization elements to capture the lessons learned that was the knowledge getting in the factors that become easier or harder the ABS implementation processes. After that this knowledge was put in electronic way to be used for all interested people.
Implementação e avaliação empírica de programas com duas crianças surdocegas, suas famílias e a professora.
(Universidade Federal de São Carlos, 2003-12-10)
Cader-Nascimento, Fatima Ali Abdalah Abdel
;
Costa, Maria da Piedade Resende da
This paper had the objective of analyze intervention procedures with deafblind children, their families and their classroom teacher, based on the van Dijk co-active approach and on the socio-historical perspective. The study was carried out for nine months, in the Federal District, at a special education public school and at the students residences. It is a case study with two female deafblind students, one of whom chronologically a 7-year old and the other 9-year old, their families and their classroom teacher. The students did not evidence any damages other than deafblindness. The research was divided into three studies: study A, with the teacher; study B, with the families; and study C, with the students. Three data gathering stages were carried out for each of the studies: initial assessment, intervention and final evaluation. The results obtained were analyzed according to the qualitative (content analysis) and quantitative (frequency and percentage) approach. The data from the three studies (A, B, and C) were analyzed and compared in relation to the behavior achieved by the teacher, families and students, in three distinct periods. The results of these studies indicated relevant progress for all the participants. Although this paper does not intend to show how all the construction of alternative communication occurs with deafblind children, based on the data obtained, it was evident that there was development in the gesture mode of receptive and expressive communication on the grounds of the set of communication alternative resources made available during the intervention. The results suggest that the strategies proposed by van Dijk in the 60s have proved effective when associated to classroom practices that favored the simultaneous use of several communication resources (sign language, gestures, coordinated body movement, speech, Tadoma, writing, etc.). The students, who initially presented elementary expressive communication (tantrums, crying, strident sounds, etc.), began to evidence new communicative competences at the end of the research, based on the use of signs, writing, dactylology, speech, gestures, etc. In addition, the performance of the students improved in terms of their participation in carrying out tasks, concentration, and communication, their having started to demand more information from their environment. It was observed in study B that it was common for the families to watch and emphasize the deficiency of their deaf-blind daughters; during the intervention, the parents started to verbalize the girls efficiency and potentialities. The data have shown that, at first, the parents and the teacher s reports on the students behavior and performance were inherent to their biological condition; later, parents and teacher began to consider their development as a result of the relation between the physical and socio-cultural conditions present in the interactions. Increased responsibility of the parents and the teacher with the children s development and performance, as well as their need to learn the necessary skills and techniques to ensure that the children will have access to information was observed. The process of in-service training (the teacher s training) demonstrated more efficiency when it involved theoretical aspects, demonstration of skills and opportunities for the teacher to observe, practice and reflect on her own teaching practice.
Gestão tecnológica: um estodo de caso no setor sucroalcooleiro.
(Universidade Federal de São Carlos, 2003-12-10)
Pedro, Edilson da Silva
;
Alves, Maria Rita Pontes Assumpção
The opening of Brazilian economy made the sugar and alcohol industries undertake the reorganization process of their productive structures aiming to increase their competency in product differentiation and in productive and market diversification in order to face the incitement of competition. Considering this scenario, the purpose of the dissertation is to analyze technological qualification in the company and to suggest policies for the construction of a model of technological management in order to reinforce the company so that it becomes able to face the competition and the setorial markets. The contributions of this chapter are: 1) identification of the strategic resources for technological qualification; 2) survey of decision making processes for technological acquisition and learning; and 3) evaluation of practices and management means and, therefore, indication of a reference model for technological management of the company. To structure this work, a research model was elaborated taking into account the revision of literature regarding the competitiveness of Brazilian agroindustry as well as theoretical approaches of technological qualification and management of companies. The method used on the field research was an exploratory and qualitative one based on the study of only one case. It is emphasized that the research model is presented as a contribution acquired from the dissertation and that it can be used for investigations in the future. The results of this work constitute a contribution for the determination of conditions for dynamical efficiency of the agroindustry. The conclusion is that the sugar and alcohol company studied should formalize a process for definition of its technological strategy aiming the industrial market, as well as to maintain a structure for technological management. For this, it is proposed a model of qualification and technological management, considering the technological resources of the company and its position on the productive and supply chains in which it is inserted. It is believed that the case study of the problem in one company can be used as reference by other agroindustrial companies and by new researches on this theme.
Estudos sobre a inclusão da correlação eletrônica do alvo no espalhamento elástico elétron-molécula e sobre a ionização molecular por impacto de elétrons
(Universidade Federal de São Carlos, 2003-12-10)
Martins, Maria das Graças Reis
;
Machado, Luiz Eugenio
;
https://lattes.cnpq.br/1364862671456515
;
https://lattes.cnpq.br/1129994736128996
In this work we present two contributions to the electron-molecule collision theory. Firstly, we present a new theoretical procedure to introduce the target electronic correlation in the elastic electron-molecule scattering. By our procedure we use the configuration interaction (CI) wave function of the target to determine the scattering potential. Static, exchange and polarization contributions are explicitly obtained in terms of the molecular spin-orbitals thus allowing, in principle, that an arbitrary number of configuration state functions (CSF) be used in the determination of the differential cross sections (DCS). We have focused our studies on the elastic electron-molecule scattering considering N2, CO, H2O, H2 and CH4 molecules and the 0.5 - 30 eV energy range. For the first four molecules the DCS were obtained using the Schwinger variational iterative method (SVIM). For CH4 and also H2 we have used the method of continued fractions (MCF). Our results were compared with experimental data and theoretical results using different methods, all of them based on Hartree-Fock (HF) wave functions. Secondly, we present a study of molecular ionization by electron impact. We consider the H2 molecule and the process (e, 2e) using the symmetric coplanar and asymmetric coplanar geometries. For this study we have used a code based on the MCF. In this case we have developed a new version of the code in order to make it capable of determining the quantities (reactance K matrices and ejected-electron continuum wave functions) needed in ionization studies, since the applicability of the existing previous versions was restricted to electron-molecule scattering and molecular photoionization calculations. Triply differential cross sections (TDCS) were calculated and compared to experimental and/or theoretical data available in the literature.
Plasticidade fenotípica em indivíduos jovens de Aloysia virgata (Ruiz et Pav.)
(Universidade Federal de São Carlos, 2003-12-11)
Corrêa, Izabel Pimenta
;
Prado, Carlos Henrique Britto de Assis
;
https://lattes.cnpq.br/7561749470600567
Phenotypic plasticity in a tree species Aloysia virgata was investigated on seedlings growing under two different natural irradiance conditions: under full solar irradiance (FS) and in shade under tree forest canopy (UC). Seedlings with 180 days old cultivated under FS showed significant (p<0.001, n=12) larger average values of biometrics (height, diameter of stem, number of leaves and total leaf area), and biomass (root, stem, and leaves) parameters. Carboxilation efficiency (CE), and potential photosynthetic capacity (on mass or on area bases) were greater in seedlings that grew under FS. In addition, the instantaneous nutrient use efficiency determined to N, P, K, Ca, Mg, and S in curves of net photosynthesis as a function of substomatal CO2 concentration, and the water use efficiency (between photosynthetic active radiation greater than 250 µmol m-2 s-1) were higher in individuals under FS. Only the root/shoot ratio average value was greater in shade condition. In spite of Aloysia virgata showed greater average values of biometric, biomass, and gas exchange parameters under FS, all UC individuals survived during 36 months. The high phenotypic plasticity showed under contrasting irradiance was brought about by changes in several organization levels of the plant, from mesophyll tissue (CE) until whole plant (biomass allocation). The high phenotypic plasticity exhibited by Aloysia virgata can explain, at least in part, its vast distribution in several ecosystem and successional stages in South America.
Desenvolvimento, caracterização e secagem de sementes com cobertura artificial
(Universidade Federal de São Carlos, 2003-12-11)
Ferreira, Margarete Martins Pereira
;
Sartori, Dermeval José Mazzini
The studies on the preparation and drying of seeds with artificial coat covering promote the integration of the referring research lines for drying of seeds and gel. Thus, the aim of this research were carried out a methodology to promote the coated of seeds with material the base of gel, to characterize the system seed-gel and to realize the search of information about the interaction among particles and fluid during the drying process in a fixed bed. In addition, it was also analyze, before and after each accomplished operation, the effects of the stages involved in the construction of the coated seed on the physiologic quality of them. Millet seeds (Pennisetum glaucum), gel agar and sorbitol were used in the tests. The best mixture was used to coat seeds in order to maintain their physiologic quality and the gel adherence. To them was composed such mixture by 1.5% of gel agar and by 5% of sorbitol in relation to the gel. After the development of the methodology of coating, some analyses were used to characterize the system seed-gel such as: dimensions, sphericity, specific mass, thermal conductivity, thermal diffusivity and specific heat. Due to the high moisture content of the coating material, it was necessary the development of a methodology that accelerated the moisture transfer, for the determination of the equilibrium moisture content of the system seed-gel-air. The best equation to determine the equilibrium of the system it was Chen-Clayton s equation, which presented a good agreement with the experimental data, in the range of temperatures from 25 to 50°C and moisture from 11 to 84% bu. The drying kinetics was obtained in fixed bed of thick layer for temperatures from 30 to 50°C and velocities from 0.5 to 2.5 m/s, The equation fitted the experimental data of drying kinetics better was one proposed by Page. . Tests of convective drying in fixed of thick layer allowed obtaining the maxim thickness of bed to supplies appropriate product to the storage. The immediate and latent effects were evaluated and according to them, the physiologic quality was maintained. Therefore, the system seed-gel satisfied the expectations concern with tests of physical characterization and regeneration of the seeds. However, this system seed-gel was also appropriate for convective drying process in fixed bed of small thickness.
Estudo de caso sobre a medição de desempenho da cadeia de suprimentos de uma montadora de autoveículos
(Universidade Federal de São Carlos, 2003-12-11)
Jesus, Giancarlo Pessoa de
;
Martins, Roberto Antonio
;
https://lattes.cnpq.br/3518820028045730
Caracterização e classificação de resíduos sólidos das indústrias de cerâmicas artísticas de Porto Ferreira, SP
(Universidade Federal de São Carlos, 2003-12-12)
Gomes, Araceli Cristina Prezoto
;
Mozeto, Antonio Aparecido
;
https://lattes.cnpq.br/1025598529469393
The main objective of this work is to perform the characterization of the solid wastes from some artistic ceramic industries of Porto Ferreira-SP. The so-called white ceramics are obtained with some specific type of clays and melting materials and burned in on oven 1200 1500 oC. The decoration process of the utensils is made with fried and inorganic pigments (hot ceramic) and with organic solvents, glitters and oil ink (cold ceramic). This study reveled that at the studied industries the water used at the washing process of paint brushers and other recipients or flasks is first decanted and then drained to the sewer system and/or directed poured to any water body adjacent to the industry site. The solid wastes are deposited in containers which are then transported to a garbage site of the municipality or disposed above ground in areas adjacent to the Mogi-Guaçu River. This study was based on the federal environmental legislation Resolução CONAMA 006/88 and Normas NBR 10.004 10.007 . The inventory of residues seeks to answers questions on the solid wastes such as where and the flux they are generated by an industrial process according to a mass balance of the productive process. This set of environmental regulation establishes the grounds for the waste classification through numerical values of limiting values for different chemical species that may be detected in the elutriate (solubilization test) (NBR 10.006/87) and leachate (lixiviation test) (NBR 10.005/87) extracts. These extracts were analyzed by ICP-AES (inductively coupled plasma atomic emission spectroscopy) and AAS (atomic absorption spectrofotometry) for metals and metalloids and by GC-MS (gas chromatographymass spectrometry) for organic compounds. The results of this study show that some specific type of solid wastes has concentration of metals and/or organic compounds in the solubilization and/or lixiviation extracts that are in disagreement to the federal legislation. The severity of this problem and the real necessity to undertake the present study become apparent when it is considered the existence of 108 ceramic industries in Porto Ferreira-SP. The solubilized and leachable contaminants may be reaching ground waters as well as tributaries and the Mogi-Guaçu River itself which may be adversely impacting these aquatic ecosystems.
Projeto e execução de lajes unidirecionais com vigotas em concreto armado
(Universidade Federal de São Carlos, 2003-12-12)
Flório, Márcio Cardozo
;
Carvalho, Roberto Chust
;
https://lattes.cnpq.br/3633394168236221
This work presents design and executive procedures for pre-cast slabs with unidirectional ribs, which are one of the most used construction elements for small buildings in the country, discussing aspects related to constructive details and both to limit state and service limit design procedures. Many construction details are discussed, such as choice of adequate concrete strength, placement, consolidation and cure of concrete, materials quality assurance tests, formwork, minimum distance between supports to different kinds of joists, camber details and others. Regarding the design procedure, there is study about the consideration of cracking and creep in the deflections service state design and also about shear and flexure reinforcement limit state design. Considerations related to panel continuity and walls directly supported by the slab were taken into account. Special care was taken during the work in other to try to suit design theories to construction techniques already known and used in large scale. Recommendations included in the new concrete code NBR 6118 (2003) were also analyzed. The tests presented were performed mainly by Grupo de Estudos de Sistemas Estruturais em Concreto da UFSCar in which the author belongs in, including a series of tests to measure deflections in pre-cast slab taking in account the creep and cracking phenomena.
Produção de textos infantis e pesquisa colaborativa: a prática pedagógica e a aquisição do conhecimento da escrita.
(Universidade Federal de São Carlos, 2003-12-15)
Brande, Carla Andréa
;
Reyes, Cláudia Raimundo
This study describes the analysis of the evolution of texts written by children who attend urban outskirts school, in the process of literacy, which happened due to a collaborative relationship between the researcher and the classroom teacher. During this collaboration process, teacher and researcher discussed and analysed pedagogical intervention practices aiming the acquisition of children s writing competence. This analysis of the children texts evolution points out the fact that, initially, their texts reflect characteristics of oral narratives as well as information from writing objects that they are in contact. Gradually, the children advance in the comprehension of the writing texts and start to consider them as an autonomous object with particular characteristics. Some methodological principles for the accomplishment of a work which aims the improvement of children s writing texts are presented: conception of the language as a constructive activity that assumes interactions among the children; the interactive activities allow the children accomplish a work of reflection and experimentation on the written language; the participation of the teacher provides the instrumentation of the children in the technical aspects of the writing process; constant practice of production of texts. This way of giving children the opportunity of developing their writing texts was built through the collaborative work between the researcher and teacher in a process of dialogue and reflection on pedagogical practice, constructing a shared knowledge and a process of professional formation.
Desenvolver a cidadania através da química : é possível? Um desafio a ser vencido
(Universidade Federal de São Carlos, 2003-12-17)
Azevedo, Leonardo Ribeiro de
;
Rodrigues, Rosa Maria Bonfá
;
https://lattes.cnpq.br/7795174030048711
The present work was inspired by the High School National Curriculum Parameters (PCNEM) as well the Schnetzler proposal of teaching chemistry to citizenship. It is also based on the observed chemistry teaching problems, inefficiency of teaching methodologies and governmental programs. Teaching chemistry under the viewpoint of maintainable social and environmental development offers opportunities to relate the work to the customary student daily life, the construction of concepts starting from facts, and of knowledge about information bound to the human being survival. The interpretation of these information was carried out using concepts already established and others concepts were built up to understand the subjects. This work applied a new methodological proposal (strategy) based on the constructive conceptions and the idea that chemistry should be taught to build up the basic abilities for citizenship, seeking to evaluate the teaching and learning process and also the method acceptance. The approach to the contents took in account the interdisciplinary, using Chemistry Science as a tool to interpret the facts in the real world. The results showed that the applied teaching methodology, according to PCNEM, was able to improve the student’s participation. The students started to act as managers of the learning process, being capable to supervise and elaborate their own ideas comparing them with the previously established scientific ideas. It was also observed that the scientific activity became something joyful and gratifying to the students.
A fábrica é escola. Práticas sociais e educativas de empresários e trabalhadores.
(Universidade Federal de São Carlos, 2003-12-17)
Gigante, Moacir
;
Silva, Petronilha Beatriz Gonçalves e
Education is usually treated from institutional, formal and schooling aspects. In this study however, education is investigated as a social work practice in the factory. The working day-to-day life of shoe factory workers in the city of Franca-SP is taken as the starting point. However, this is put in the context of relationships between historical capitalism and the historicity of the training in competencies for craftsmanship, manufacturing and industry, be it in general, in other manufacturing sectors, or be it in the specific context of the profession of shoemaker. Daily and oral history of workers are studied; the unique experience of each one of the collaborators in the research is the support base for the reflection and analysis on work and competencies training for work. Education for work is therefore studied: informal education, within the worker traditions, as well as institutional-scholarly education. Education as informal-professional, or institutionalscholarly is differently obtained and is differently destined for different functions and different social groups within the factory, a fact that accentuates and reinforces social stratifications. The creation of work competencies in the shoe factories is peculiarly associated, at each historical moment, with the very manner of organizing work routines. This fact implies a necessity for the comprehension of the real functions of formal education. This work contributes not only to the comprehension of the educational process and of the maintenance and extinction of the work competencies of footwear industry workers, but also to the comprehension of the aims of institutional education, in the past as well as in present society.
Geração de energia elétrica excedente no setor sucroalcooleiro: entraves estruturais e custos de transação
(Universidade Federal de São Carlos, 2003-12-18)
Souza, Zilmar José de
;
Azevedo, Paulo Furquim de
Given the estimated potential of electric energy generation around 18 thousand MW and the necessity to expand and diversify the installed national capacity of energy generation, this dissertation investigates the reasons for the low performance in the exploitation of the investment opportunities in electric energy commercialization by the sugarcane sector. With this purpose, the research presents a diagnosis of the main structural obstacles and transaction costs present in the generation of electric energy surpluses, showing the importance of the institutions in the decision of expansion of the activity by the sugarcane sector. The results were contrasted with the proposal of governmental energy policy for incentive this activity. It was verified the necessity of improvement in the current institutional environment. The main contribution of the dissertation was to present directives to public policies. These directives focus the financing for the expansion of the activity; the commercialization of the excesses; the tax incentive; and the concession of direct subsidies to the expansion of the activity. The directives related to financing were: official lines differentiated by technology use, index of mechanization and scale; the Ethical Fund Formation for the sector; and projects finance involving Emissions Reduction Certificate. Regarding commercialization, directives were: subvention to the transport tariffs; the extension of the universe of potentially free consumers; formation of trading pools and inclusion in the Energy Replacement Mechanism; the insertion of the sugarcane energy in the composition of Factor X and in the National Energy Reserve; changes in the retailers' auto-supplement; and incentive to the commercialization of energy surpluses and of Emissions Reduction Certificates. Directives related to tax incentive were also presented. Regarding direct subsidies, it is interesting the use of the resources that come from the Use of Public Good and Fuel Consume Account to foster the expansion of the energy surpluses commercialization.
Estimativa de variabilidade genética em acessos crioulos e cultivares comerciais de tomates (Lycopersicon esculentum Mill.) do sul do Brasil e avaliação da presença do Gene Mi
(Universidade Federal de São Carlos, 2003-12-18)
Carelli, Bernardete Primieri
;
Echeverrigaray, Sergio
;
https://lattes.cnpq.br/5630031784004533
;
Gerald, Lee Tseng Sheng
Cultivated tomato (Lycopersicon esculentum Mill.) is one of the most important horticultural crops. Although original from the Andes region, this crop was officially introduced in Brazil by the European immigrants during the last half of the XIX century. Today, old varieties and new improved cultivars are planted in the different Brazilian regions. In the last 20 years the Ecological Center of Ipê proceeded a rescue of old tomato varieties maintained by small agriculturists in the Northeast region of Rio Grande do Sul State. The present work had the objective to estimate the variability among 35 tomato accessions, 12 commercial cultivars and 23 Brazilian landraces using morphological descriptors and molecular traits (proteins and DNA), and to verify the Meloidogyne resistance/susceptibility status of these genotypes, as well as the presence of the Mi genes. The landraces were separate in five groups by their fruit characteristics: large oblate, cherry, heart-shape, large cylindrical, and rounded, whereas the commercial cultivars were restricted to the most common groups in the market. Both the quantitative evaluation of seed protein electrophoretic profiles, and RAPD markers allowed identifying all the accessions. The cluster analysis of RAPD data allowed to separate the genotypes in seven similarity groups that were not related with those formed by the protein analysis. Conversely, a discriminant analysis showed a relation between RAPD markers and fruit morphology. Landraces exhibited higher levels of protein and genetic (RAPD) variations compared with the commercial cultivars confirming the genetic variability reduction caused by the limited number of genotypes used in breeding programs. Experimental results showed that all the landraces and commercial cultivars, with the exception of the cultivars Polka Baixo and Gaucho (Feltrin) were susceptible to M. javanica, M. incognita, and M. arenaria. PCR data showed that the Mi1.2 gene was present only in the Polka Baixo cultivar, whereas the Mi1.1 was found in 26 accessions, most of which susceptible to root-knot nematodes, confirming the gene Mi1.2 as the nematode resistant determinant, and the inefficiency of the Mi1.1. Considering the high incidence of Meloidogyne in South Brazil, the low frequency of resistant accessions point-out the necessity of a special effort of breeding programs on the transfer of root-knot nematode resistance genes to Brazilian tomato varieties and cultivars.
A visão da escola sobre a interação com as famílias dos alunos: o cenário em primeiras séries do ensino fundamental
(Universidade Federal de São Carlos, 2003-12-18)
Cozer, Renata de Cassia
;
Reali, Aline Maria de Medeiros Rodrigues
The main objective of this qualitative research was to understand through observation some practices of the daily school and through interviews, the relationships established at the school, acted by the director, pedagogic coordinator and teachers of the first grades on elementary school, and the students' families there are enrolled in this series. The theoretical approached the historical context of the relationship between school and families and the problem of the teachers' graduation. Starting from the analysis of a group of representative situations of the interactions maintained between school and their students' families is ended that the professionals of the school - although they have opportunities to establish bonds with the students' families - they don't drive their actions for an effective approach. It is discussed as the public politics; the courses of initial formation and activities of continuous formation can focus the study of the underlying theories to the process established between school and families. The discussions of the educational practices can favor the critical reflection and the change of posture and of attitude on the part of the educators. It is believed that like this those professionals will get to recognize the families and the students for besides the differences of groups or classes, the contribution that these have to offer to the society. It is advocated that to rethink the dynamics and practices accomplished at the school, including the ones that involves the parents and the students' families, it favors classroom works returned for the students' success.
Gênero e educação: abordagens e concepções em dissertações de mestrado no estado de São Paulo
(Universidade Federal de São Carlos, 2003-12-18)
Jardim, Silvia Regina Marques
;
Abramowicz, Anete
The purpose s work is to analyze and systematize 19 (nineteen) dissertations that focused the educational process associated to gender category presented between 1990 to 2000, in universities located in Stated of São Paulo: Universidade Federal de São Carlos UFSCar; Universidade de Campinas UNICAMP; Universidade de São Paulo USP/SP and Pontifícia Universidade Católica - PUC/SP. Its intent is to examine how gender category has been conceptualized by educational studies, emphasizing main tendencies, difficulties and contributions presents in dissertations that articulate gender with education, in State of São Paulo. The results show there is little advancement in the junction between two areas. The works are fragmented and many themes need a profound study, mainly about the uses of gender category. In spite of some limits, gender s studies are relatively new in the Education field. However, this research observes the importance of junction between gender and educational studies because it permits to see different multiplicities. So, this fact makes to understand that there are important contributions in the articulation between gender and education. That s why the results demonstrate there is a progressive process in this junction between these two areas appointing to contributions, for example: fights against stereotypes of gender in schools; modification of a population (teachers, students); reflection about teaching work; discussions about gender discrimination in pedagogic discourses; movements into process of increasing people s understand of gender relationships; reflections about proximity between women and careers that presents low status social; emphasis in school Education as a social transformation instrument.
Propriedades funcionais e estruturais e concentração de fosfatos orgânicos em eritrócitos de dez espécies de morcegos pertencentes às famílias Phyllostomidae e Molossidae (Chiroptera - Mammalia)
(Universidade Federal de São Carlos, 2003-12-19)
Reinoso, Simoni Savazzi
;
Schwantes, Maria Luiza Barcellos
;
https://lattes.cnpq.br/3018620987507134
;
Schwantes, Arno Rudi
Hemoglobin structural and functional aspects, as well as the presence of intraerythrocitic organic phosphates of 167 individuals of 10 species of bats, belonging to Phyllostomidae (Artibeus planirostris, Phyllostomus discolor, Artibeus lituratus, Carollia perspicillata, Desmodus rotundus, Glossophaga soricina), and Molossidae family (Molossus ater, Molossus molossus, Nyctinomops laticaudatus e Eumops perotis) were studied. These individuals were collected in different areas of São Paulo State. Hemoglobin of these individuals were submitted to starch gel electrophoresis and showed all the same pattern: one slow major, migrating close to A2 human hemoglobin and one minor fast component, migrating close to human hemoglobin A. No intra and inter specific variation were detected. Variations on functional properties in blood were detected. Most of the species (7) presented normal Bohr effect, while C. perspicillata, D. rotundus e M. molossus null Bohr effect. Artibeus planirostris presented reverse Bohr effect. All the hemoglobin samples showed normal Bohr effect in the stripped form as well as in the presence of 2,3-biphospho glicerate and inositol hexaphosphate. The addition of this organic phosphate has altered both Bohr effect and P50 values. The oxygen affinities were high in all hemoglobins. In vivo, the oxygen affinity of bat hemoglobins is lower due to modulator effect,probably ,3.biphospho glicerate. In the erythrocytes of all individuals studied 2,3-biphospho glycerate were found in varying concentrations and a little higher than most of Mammals. No inositol polyphosphates were found in any sample tested.
Economias de escala em duas tecnologias alternativas: estudo do setor siderúrgico
(Universidade Federal de São Carlos, 2003-12-19)
Araújo, Juliano Bezerra de
;
Pinho, Marcelo Silva
An important characteristic of the capitalist industrial production is related to the exploration of the scale economies in a widespread way by firms with the purpose of enjoying better economical results. This was the case of the steel industry, which, in order to meet the increasing needs of operational efficiency started to adopt larger and larger equipment and facilities in their industrial plants. This path was more intense in the integrated plants, which present larger size than the mini-mills . This work investigates the role of the scale economies in the metallurgical processing, through extensive bibliographical research in specialized literature and visits to different companies. Besides, numerous interviews with metallurgists from several areas of these industries have been done. The results indicated, among other things, that most of the semi-integrated plants now in operation do not fully explore the potential of scale economies associated to the process, for having been constructed in sub-optimal scale. In a more dynamic demand scenery, a better exploration of this economy is expected, where it would prevail the path of increasing scales for both technological routes, the integrated and the semi-integrated plants.