Gestao tecnologia: um estudo de caso no setor sucroalcooleiro

PEDRO, Edilson da Silva Pedro. Gestão tecnológica: um estudo de caso no setor sucroalcooleiro. 2004. 145f. Dissertaçao (Mestrado em Engenharia de Producao) - Universidade Federal de Sao Carlos, Sao Carlos, 2004.

A formação e o desenvolvimento de arranjos cooperativos sob a ótica da imersão social e da economia dos custos de transação: um estrudo de caso na Coopercam e na Unipesca

The current study analyzes the birth and development of two strategic alliances established between shrimp producers in Rio Grande do Norte: the Unipesca and the Coopercam. To achieve this aim, two approaches which, at first sight, could be considered contradictory were used: the Transactional Costs Economy and Embeddedness. The first approach is fundamentally based in the studies of Williamson (1985; 1991; 1996; 1999; 2000; 2002). Embededness, on the other hand, went through the review of a series of authors, such as Burt (1992), Granovetter (1973; 1985), Uzzi (1997), Gulati (1994; 1995; 1997; 1998; 1999; 2000), Nielsen (2005), Ring (2002), Ring and Van de Ven (1994), Zafirovski (2002), among others. To analyze the birth and development of the cooperatives in this study, Gulati s work (1998) was used. This study shows the steps to be studied for a better comprehension of an alliance: the decision of starting an alliance and the choice of the partners, the decision about the governance structure, the evolution of the alliance and the development of the companies which established this partnership. To carry this study out, a study case accordingly to Yin s proposal (2001) was adopted. Semi-structured interviews with pre-defined plots were conducted in two phases: in the beginning of 2006 and in the beginning of 2007. The subjects from the research were, in 2006, representative members of the main associations and corporations, besides the shrimp producers from the state, when the context of the activity was set. In the second phase, in 2007, representative members from the two cooperatives that were listed above were interviewed the president from Coopercam and the marketing manager from Unipesca. Besides these two members, directors from two important organizations in each of these cooperatives were also interviewed, giving out the necessary information for the research. Secondary data was also collected from the Brazilian Association of Crab producers website, as well as from news from important newspapers in RN, such as Tribuna do Norte. The primary data was analyzed in terms of quality, accordingly to the documental analysis technique. Thus, through the data that was collected, it can be concluded that the reasons that motivated the companies to cooperate can be explained in terms of the transactional costs economy. However, the choice of partners is more connected to aspects approached by the social embededness. When aspects related to development and evolution were analyzed, it could be seen that both aspects from TCE and Embededness were vital to explain the development of the cooperatives mentioned

Relações interorganizacionais e confiança no setor da carcinicultura: um estudo de caso na camanor produtos marinhos

This study investigated how the types of confidence based on competence and good will act in the formation and maintenance of cooperation relationships between the Camanor and its partners (Aquatec, Purina, Caçuá, Uvifrios and Malta / Cleyton). It used organizational approaches on networks based primarily on studies of Powell (1987, 1990), Das and Teng (2000, 2001), Child (2001) and Contractor and Lorange (2004) which have described the advantages that cooperative relationships can provide, as well as their limits as alternative governance structures. Confidence has been considered an important factor affecting the actions and development of organizations involved in networks or in strategic alliances (ZAHEER; HARRIS, 2006) and is the most appropriate control mechanism in these situations (SYDOW, 1998). Confidence is seen from two different approaches: the economic and the sociological (ZAHEER; HARRIS, 2006). To facilitate the understanding of confidence some typologies have been created, as proposed by Barney and Hansen (1994), Lane (1998), Das and Teng (2000), Child (2001) and Wever, Martens and Vandenbempt (2005). This study made use of the case study as proposition of Yin (2005). Semi-structured interviews were held with pre-determined routes, in a single stage performed in early 2008. The research subjects were owners and / or responsible for Camanor and its business partners (Aquatec, Purina, Caçuá, Uvifrios and Malta / Cleyton). Also secondary data were collected in several sites related to the industry and enterprises studied, in addition to data collected by previous studies conducted by CARCINEREDES (2006). The primary data were analyzed using the analysing technique of the content proposed by Bardin (1994). Regarding the secondary data, they were qualitatively analyzed according to documentary analysis technique (BARDIN, 1994). Thus, through the data collected, could be concluded that although there is confidence based on good faith in relationships(UZZI, 1998; OF; TENG, 2001), their presence does not determine the formation and / or maintenance of a partnership, serves only in order to facilitate the relationship, making them more flexible. The confidence based on competence (DAS; TENG, 2001) influenced the formation and maintenance of relations studied. Because whether or not to form a relationship with another organization it is used the perception of the partner acts, namely the reputation (image) as decision basis. And it is through the verification of the performance of the partner activities that will determine the continuation of the partnership

A Corrupção burocrática inibe o empreendedorismo? uma análise empírica dos estados brasileiros

This work aims to investigate the relationship between the entrepreneurship and the incidence of bureaucratic corruption in the states of Brazil and Federal District. The main hypothesis of this study is that the opening of a business in Brazilian states is negatively affected by the incidence of corruption. The theoretical reference is divided into Entrepreneurship and bureaucratic corruption, with an emphasis on materialistic perspective (objectivist) of entrepreneurship and the effects of bureaucratic corruption on entrepreneurial activity. By the regression method with panel data, we estimated the models with pooled data and fixed and random effects. To measure corruption, I used the General Index of Corruption for the Brazilian states (BOLL, 2010), and to represent entrepreneurship, firm entry per capita by state. Tests (Chow, Hausman and Breusch-Pagan) indicate that the random effects model is more appropriate, and the preliminary results indicate a positive impact of bureaucratic corruption on entrepreneurial activity, contradicting the hypothesis expected and found in previous articles to Brazil, and corroborating the proposition of Dreher and Gassebner (2011) that, in countries with high regulation, bureaucratic corruption can be grease in the wheels of entrepreneurship

Gestao tecnologia: um estudo de caso no setor sucroalcooleiro

PEDRO, Edilson da Silva Pedro. Gestão tecnológica: um estudo de caso no setor sucroalcooleiro. 2004. 145f. Dissertaçao (Mestrado em Engenharia de Producao) - Universidade Federal de Sao Carlos, Sao Carlos, 2004.

Análise de componentes arquitetônicos para potencialização da ventilação natural com ênfase em captadores de vento

The building envelope is the principal mean of interaction between indoors and environment, with direct influence on thermal and energy performance of the building. By intervening in the envelope, with the proposal of specific architectural elements, it is possible to promote the use of passive strategies of conditioning, such as natural ventilation. The cross ventilation is recommended by the NBR 15220-3 as the bioclimatic main strategy for the hot and humid climate of Natal/RN, offering among other benefits, the thermal comfort of occupants. The analysis tools of natural ventilation, on the other hand, cover a variety of techniques, from the simplified calculation methods to computer fluid dynamics, whose limitations are discussed in several papers, but without detailing the problems encountered. In this sense, the present study aims to evaluate the potential of wind catchers, envelope elements used to increase natural ventilation in the building, through CFD simplified simulation. Moreover, it seeks to quantify the limitations encountered during the analysis. For this, the procedure adopted to evaluate the elements implementation and efficiency was the CFD simulation, abbreviation for Computer Fluid Dynamics, with the software DesignBuilder CFD. It was defined a base case, where wind catchers were added with various settings, to compare them with each other and appreciate the differences in flows and air speeds encountered. Initially there has been done sensitivity tests for familiarization with the software and observe simulation patterns, mapping the settings used and simulation time for each case simulated. The results show the limitations encountered during the simulation process, as well as an overview of the efficiency and potential of wind catchers, with the increase of ventilation with the use of catchers, differences in air flow patterns and significant increase in air speeds indoors, besides changes found due to different element geometries. It is considered that the software used can help designers during preliminary analysis in the early stages of design

UBS RN-7: proposta arquitetônica para um padrão flexível de unidade básica de saúde para a zona bioclimática 7 do RN, com ênfase na sustentabilidade ambiental

Standardization and sustainability: these two apparently antagonistic words find the challenge of uniting in a flexible architectonic proposal. This was the idea that motivated the proposal of this assignment, whose appearing is bound up with the necessity of thinking about standardized spaces that attend on functional criterias and environmental sustainability, in reply to an existing real demand. The assignment consists of an architectonic proposal for a flexible standard of a Basic Unit of Health for the bioclimatic zone 7 of RN (UBS RN-7), with emphasis in the environmental sustainability. The project contemplates innumerable involved variables, such as: obedience to the current law of the Health Ministry for the UBSs; formal/aesthetic aspects; criterias of expansiveness of the UBS I for the UBS II; relative aspects to the constructive rationality and, mainly, sustainability aspects. With the intention to unite the variables and, also, glimpsing a proposal that could reach a good functional performance, aesthetic, of environment comfort and energetic efficiency, it was also necessary to consider concepts about the flexibility of the envelopment. The elaboration of the architecture first draft was based on bibliographical research, conceptual studies and references, elaboration of the architectonic program and the draft development for the UBS port I and the UBS port II. To the end, an implantation data sheet for the project is proposed for the UBS standard project, where strategies of thermal isolation, shadowing and thermal inertia are adopted and combined to three possible types of lot, resulting in 24 possibilities of implantation

Qualidade do ar interior e conforto térmico : um estudo em espaços de estacionamento em Natal/RN

The recent tendency to utilize parking lots for other purposes has demonstrated that more time has been spent by visitors, mainly in great cities. Therefore, this paper investigates the thermal comfort and the air quality indoors in areas specifically used as parking lots by analyzing the direct relation between such environments and vehicular pollution. The thermal comfort and the quality of air indoors in parking lots with different architectonic typology (ground-floor and underground) are also studied, aiming to contribute to the proposition of suitable new areas designated to human usage. Field research was done, in two distinct periods within different weather conditions (January and July) in, two naturally cooled, parking lots located in Natal - RN. The internal environment agents were measured by using tools for air temperature, humidity, speed and direction; interviews with employees and visitors and chemical analysis through appropriate tools to analyze specific material, carbon monoxide and ozone. The results showed that chemical agents densely concentrate mostly in the closed parking space, aggravated by weather conditions, which dissatisfied the visitors. Still, it was shown that architectonic typology, alongside topographical aspects compromise internal environmental conditions, which increases the retention of pollution, leading to dissatisfactory thermal comfort levels and becoming less suitable for usage by visitors considering air and thermal comfort aspects. Consequently, they are not suitable for human stay due to the poor quality of the indoor air

Jogos cooperativos: uma proposta de educação ambiental

O presente trabalho está vinculado ao Programa de Pós-Graduação em Educação Ambiental - PPGEA/FURG e tem como tema a Educação Ambiental, a Educação Física e os Jogos Cooperativos no contexto escolar, com o objetivo de repensar a prática de Educação Física na escola a partir do desenvolvimento dos jogos cooperativos. A Educação Física é uma disciplina inserida no espaço escolar caracterizada pela presença dos esportes competitivos como conteúdo dominante e a Educação Ambiental é uma prática social que considera outros modos de constituição de relações sociais que estejam para além da lógica perspectivada pelo capitalismo e tão presente na prática dos jogos competitivos realizada nas aulas de Educação Física. A pesquisa insere-se numa perspectiva qualitativa tendo como suporte metodológico a pesquisa-ação. Ocorreu na Escola Municipal de Ensino Fundamental Mate Amargo, onde a pesquisadora possui vínculo. Os sujeitos da pesquisa foram os alunos de uma turma da referida escola e a partir do questionamento ?quais os significados atribuídos aos jogos cooperativos pelos estudantes da turma 71 - sétima série (no ano de 2012 e oitava série em 2013) da Escola Municipal de Ensino Fundamental Mate Amargo, desenvolveu-se esta pesquisa. A produção dos dados ocorreu por meio da proposição de jogos cooperativos e semi-cooperativos com registros escritos dos sujeitos da pesquisa após as vivências, escrita no diário de campo da pesquisadora e a produção de uma história das aulas de Educação Física realizada pelos referidos alunos. Como instrumento de análise foi utilizado a análise textual discursiva (ATD) proposta por Moraes e Galliazzi (2007) o qual se constitui por diversas etapas num movimento recursivo de compreensão do fenômeno investigado. A partir dos dados analisados emergiram duas categorias de análise: a primeira intitula-se ?Jogos e suas múltiplas faces: o resgate do lúdico? onde foi possível analisar as percepções dos alunos diante de tais jogos, os sentimentos que surgiram, suas opiniões e aprendizados. Evidenciouse ainda o potencial lúdico existente nestes jogos propostos. A segunda denomina-se "Entre a competição e a cooperação", e são expressas suas percepções acerca destes dois elementos no jogo, demonstrando que em alguns momentos a competição se evidencia revelando talvez, as próprias vivências dos alunos em seu cotidiano, e por vezes a cooperação se anuncia confirmando a possibilidade desses jogos em impulsionar e desenvolver sentimentos de coletividade, cooperação e sentido de grupo nos sujeitos da pesquisa permitindo o encaminhamento do significado atribuído por eles aos jogos cooperativos como atividades que propiciaram momentos de diversão e prazer, acompanhados de situações em que possibilitou o exercício da cooperação, percepção do outro e da coletividade. Como aporte teórico, deu-se ênfase a autores como Loureiro (2006; 2009), Guimarães (1995;2007), Bracht (1992;2009), Orlick (1978) Brown (2002) Brotto (2001). A pesquisa mostrou que os jogos cooperativos propiciaram a emergência de atitudes cooperativas e a percepção do outro, como também foi possível apreender pelas análises um clima de diversão e prazer sentido e expressado por eles confirmando o potencial lúdico existente nestes jogos.

Análise bioclimática e investigação do conforto térmico em ambientes externos: uma experiência no bairro de Petrópolis em Natal/RN

This study was intended to investigate how the urban form has been influencing the changes in the climate of the city and make a correlation between the climate and the thermal sensation of the users of open spaces. The research was developed in the district of Petrópolis in Natal/ RN whose occupation has been almost consolidated. Among other reasons, this district was selected because it was planned considering the environmental aspects of comfort. The methodologies used are based on KATZSCHNER (1997) and OLIVEIRA (1988) studies, which suggest the drawing and analysis of maps of the area under study, including topography, height of the buildings, land use, green areas, and types of soil pavement, as well as measurement of the environmental variables: air temperature, relative humidity, direction and wind speed for a comparative study. As part of this, study local users of the district were interviewed about their thermal sensations in open spaces. For the statistical analysis, data was collected at 10 distinct points characterized by BUSTOS ROMERO (2002), being 8 within the district and 2 at different places (outside the district), at climatologic stations, in 3 periods (August/2000, January/2002 and June/2002), for 4 consecutive days for each measurement (from Sunday to Wednesday) at the time of lower and higher temperatures in the city, 6:00 am and 1:00 pm, respectively. At the same time interviews were carried out with users of the open spaces in the area, totaling 171 valid formularies. The urban form showed a rather leveled topography, great diversity of land use and height of the buildings, with the existence of an area mostly occupied with high buildings, very little green area and soil practically impermeable. The statistical analysis showed high temperature and humidity levels. The wind direction is predominantly Southeast with extremely variable speeds. When the data from this district is compared with the data from other areas in the city and its outskirt, it was observed that this district is hotter and less ventilated than the others; besides, most users said that they felt uncomfortable in the local environmental conditions. The results of the analysis generated a zoning for the district with recommendations for soil occupation. The profile of the user was defined regarding the thermal comfort, as well as some discussion about the comfort parameters, including the proposal of limiting areas of temperature and humidity for the thermal comfort in the open spaces

Circuito regional de performance BodeArte: encontros, coletividade e porítica na performance do Rio Grande do Norte

This dissertation aims to look into the structure of the event Circuito Regional de Performance BodeArte1 to think how it collaborate with its proposal providing theoretical points to relevant questions to the comprehension of Brazilian performance art in contemporaneity, since its conceptual format until its occurrence and practical limitations. From this proposition the dissertation is organized into three chapters guided for the following aspects: the resumption of the events encompassed on the occurrence of Circuit BodeArte as well as a tabulation of the data reunited in its history, the presentation of its conceptual choices, and the metaphors conducted by the use of the term performance and how they can lead us to the idea of a performance-as-BodeArte. The methodological structures moved for this organization are qualitative, and have been formed from printed materials, texts, festival programs, blog, videos, photos, interviews, lectures and forums, plus our own memory as a producer and performer of the event, looking through these set points of the epistemological organization contained on the proposal of the Circuito, expanding and discussing them. This way this research moves between the propositions of this event in its three editions, promoting discussions that dialogue with concepts such as the emergence of Steve Johnson (2004), the metaphors of thought proposed by Christine Greiner (2005), the idea of performance hacker of Maria Beatriz de Medeiros (AQUINO, et al., 2012), as well as other propositions presented by Jan Swidzinski (2005) and Eleonora Fabião (2012)

Projeto, implementação e análise de um conversor CC-CC de alto ganho e alto rendimento para aplicações fotovoltaicas

In recent years the photovoltaic generation has had greater insertion in the energy mix of the most developed countries, growing at annual rates of over 30%. The pressure for the reduction of pollutant emissions, diversification of the energy mix and the drop in prices are the main factors driving this growth. Grid tied systems plays an important role in alleviating the energy crisis and diversification of energy sources. Among the grid tied systems, building integrated photovoltaic systems suffers from partial shading of the photovoltaic modules and consequently the energy yield is reduced. In such cases, classical forms of modules connection do not produce good results and new techniques have been developed to increase the amount of energy produced by a set of modules. In the parallel connection technique of photovoltaic modules, a high voltage gain DC-DC converter is required, which is relatively complex to build with high efficiency. The current-fed isolated converters explored in this work have some desirable characteristics for this type of application, such as: low input current ripple and input voltage ripple, high voltage gain, galvanic isolation, feature high power capacity and it achieve soft switching in a wide operating range. This study presents contributions to the study of a high gain and high efficiency DC-DC converter for use in a parallel system of photovoltaic generation, being possible the use in a microinverter or with central inverter. The main contributions of this work are: analysis of the active clamping circuit operation proposing that the clamp capacitor connection must be done on the negative node of the power supply to reduce the input current ripple and thus reduce the filter requirements; use of a voltage doubler in the output rectifier to reduce the number of components and to extend the gain of the converter; detailed study of the converter components in order to raise the efficiency; obtaining the AC equivalent model and control system design. As a result, a DC-DC converter with high gain, high efficiency and without electrolytic capacitors in the power stage was developed. In the final part of this work the DC-DC converter operation connected to an inverter is presented. Besides, the DC bus controller is designed and are implemented two maximum power point tracking algorithms. Experimental results of full system operation connected to an emulator and subsequently to a real photovoltaic module are also given.

Processo de reflexão orientada na formação de professores dos anos iniciais : concepções e práticas sobre o ensino de ciências

Esta investigação, de natureza qualitativa, visou conhecer as concepções e práticas de professores dos anos iniciais sobre o ensino de ciências e promover reflexões sobre tal ensino. O trabalho teve como base o Processo de Reflexão Orientada, uma estratégia para o desenvolvimento profissional a partir do enfoque de questões da prática docente. As questões de investigação foram: Como professores dos anos iniciais concebem, refletem, planejam e realizam o ensino de Ciências? Como refletem e realizam o ensino de Ciências a partir de um Processo de Reflexão Orientada? E, como a partir de um Processo de Reflexão Orientada para professores dos anos iniciais do Ensino Fundamental avaliam o seu próprio desenvolvimento profissional? Os dados foram obtidos a partir de questionários, entrevistas, planejamentos escritos e de vídeogravações dos encontros e de aulas ministradas. Sequências de ensino foram planejadas e discutidas, novas reflexões foram realizadas e reelaborações foram propostas. As aulas desenvolvidas evidenciaram um progresso de Lívia com relação à participação dos alunos, com a proposição de uma situação-problema, da consideração das ideias prévias dos alunos, embora apresentasse ainda dificuldades em promover uma discussão orientada, que pudesse favorecer a argumentação dos alunos e a compreensão do fenômeno. Já, nas aulas de Roberta observaram-se atividades que privilegiaram a participação dos alunos. O processo de reflexão orientada mostrou ser uma estratégia importante para o desenvolvimento profissional dessas professoras, possibilitando reflexões significativas sobre a própria prática, bem como a tomada de consciência de uma nova sistematização das ações docentes.

As rugosidades do Ciberespaço: um contributo teórico aos estudos dos web espaços informacionais

Este artigo apresenta uma contribuição à área da Ciência da Informação, em sua dimensão teórica, ao trabalhar conceitos do geógrafo Milton Santos como elementos norteadores para uma análise das infraestruturas físicas e tecnológicas que compõem o que intitulo como web espaços informacionais. Balizado também em conceitos do filósofo Gilbert Simondon, propõe-se identificar as estruturas e objetos técnicos que compõem estes espaços em seu processo de concretização, reconhecendo nestes mesmos, práticas recorrentes de um cenário global marcado pela concentração de capital e conhecimento científico tecnológico. O artigo abre, com isso, a proposição de que as formas de visibilidade e acesso da informação nos web espaços informacionais constituem-se a priori como rugosidades de uma estrutura já existente apesar das inovações quanto aos objetos, plataformas e sistemas informacionais em constante ebulição.

Criança e arte: expressão da cultura regional em um ambiente de aprendizagem em arte de uma escola municipal de educação infantil de Rio Grande/RS

Esta dissertação buscou identificar a presença dos aspectos da cultura regional nas situações cotidianas vivenciadas por um grupo de crianças de quatro anos de idade no Ambiente de Aprendizagem em Artes e Ciências Naturais da EMEI Oscar de Moraes, pertencente à rede municipal do Rio Grande (RS). A proposição da investigação partiu da mudança proposta pela Lei Federal nº 12.287/2010, que alterou o segundo parágrafo do artigo 26 da LDB 9394/96. A nova redação estabelece que ―O ensino de arte, especialmente em suas expressões regionais, constituirá componente curricular obrigatório nos diversos níveis da educação básica, de forma a promover o desenvolvimento cultural dos alunos‖ (BRASIL, 2010, p. 1). Trata-se de uma pesquisa de abordagem qualitativa, tendo o estudo de caso como importante elemento de compreensão do ambiente pesquisado e a observação e o registro em caderno de campo como as estratégias utilizadas para a produção de dados. A inserção no Ambiente de Aprendizagem em Artes e Ciências Naturais da EMEI Oscar de Moraes permitiu identificar a utilização desse ambiente para registro, através de diferentes modos e linguagens do trabalho realizado com projetos, e também a possibilidade de descobertas e brincadeiras por meio das produções e criações artísticas das crianças. A análise dos dados foi realizada com base nos seguintes autores: Derdyk (1990), Richter (2004), Edwards (1999), Duarte Júnior (1981), Horn (2007), Ostetto (2000), Rinaldi (2012), Cunha (2014), Brougère (1998), Bertoni (2014). Os resultados expressaram que a presença da família na escola pode ser considerada uma das formas de inserção da cultura regional na escola, promovendo a convivência com diferentes pessoas e ampliando, dessa forma, o repertório de vivências e aprendizados das crianças. Os resultados também evidenciaram a presença da utilização das datas comemorativas nas situações cotidianas do Ambiente de Aprendizagem em Arte e Ciências Naturais, levando em consideração, nesse aspecto, a documentação abordada no estudo e os referenciais utilizados; considerei também como uma possibilidade de inserção e apropriação da cultura regional na escola