976 resultados para Estratégias de estudo


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Os shoppingcenters são grandes instituições repletas de empresas quecompetem entre si formas de como melhor satisfazer as necessidade dosclientes. Sendo assim, cada empresa utiliza-se de estratégias com o intuito deatingir a maior parcela de compradores possíveis sem comprometer suaexistência e sua vantagem competitiva. Este estudo está baseado na teoria dasestratégias competitivas genéricas de Porter (1980; 1985) o qual estabeleceem seu modelo que todas as empresas existentes no mercado possuam pelomenos uma das três abordagens estratégicas (diferenciação, liderança emcusto e enfoque). Desta forma, este trabalho identifica de que maneira estádistribuída as estratégia competitiva nas empresas de shoppingcenters deNatal/RN. Primeiramente buscou-se levantar a relação das estratégias destasempresas com a teoria proposta por Porter (1985) e sua alocação de acordocom os agrupamentos resultantes da combinação das estratégias. Nestemomento, foram aplicados questionários com 89 gerentes de lojas de shoppingcenters que resultou após análises estatísticas em cinco agrupamentos comabordagens válidas. Em seguida foram selecionadas as empresas quepossuíam maior afinidade com cada agrupamento e que melhor representavamos resultados dispostos em cinco clustersacerca da teoria proposta e nestaamostragem foi aplicada entrevista com os gerentes. Os resultados obtidos com as entrevistas validaram a análise dos dados encontrados nosquestionários anteriormente aplicados estando em conformidade com aproposta teoria. Identificou-se também duas modalidades de empresas queutilizavam simultaneamente mais de uma estratégia competitiva (meio-termo),sendo uma dentro e outra fora do modelo proposto pelo autor. Embora omodelo das estratégias competitivas genéricas tenha sido instituído comaspectos voltados as organizações industriais, os resultados obtidos nestetrabalho validaram a aplicação desta teoria em empresas comercias deshopping centers que vem se adequando para obter resultados financeirosmais satisfatórios e melhor posicionamento em relação à concorrência

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This master's thesis aims to ascertain how the Stakeholders interactions influence the adoption of green marketing strategies from the perspective of the Alpha Company, a furniture industry located in Rio Grande do Norte, Brazil. The methodology has a qualitative approach and uses the exploratorydescriptive case study method as model of formal and systematic study. Following the theoretical and conceptual propositions of Polonsky (1995), Michell, Angle and Wood (1997) and Frooman (1999) as a reference base. This study identifies and assesses the importance degree of the relevant stakeholders, shows their expectations and needs and describes the tactics used by the company for the implementation of green marketing strategies. The study describes the reality of a furniture industry in Rio Grande do Norte, and shows his philosophy and background; identifies present stakeholders that influence the decision process of the company and also, analyzes the degree of importance of each group showing their needs and expectations and, finally, it states the changes in the organization with the implementation of green marketing strategies. The results it s concluded that stakeholders are taken into consideration in the adoption of green marketing strategies, even without a proper strategic perception from the company, an imperative to advance towards the adoption of the green marketing philosophy. This case study explores knowledge that may be used and suited to small companies that act in the strategic segment-trend of green marketing

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The progressing cavity pump artificial lift system, PCP, is a main lift system used in oil production industry. As this artificial lift application grows the knowledge of it s dynamics behavior, the application of automatic control and the developing of equipment selection design specialist systems are more useful. This work presents tools for dynamic analysis, control technics and a specialist system for selecting lift equipments for this artificial lift technology. The PCP artificial lift system consists of a progressing cavity pump installed downhole in the production tubing edge. The pump consists of two parts, a stator and a rotor, and is set in motion by the rotation of the rotor transmitted through a rod string installed in the tubing. The surface equipment generates and transmits the rotation to the rod string. First, is presented the developing of a complete mathematical dynamic model of PCP system. This model is simplified for use in several conditions, including steady state for sizing PCP equipments, like pump, rod string and drive head. This model is used to implement a computer simulator able to help in system analysis and to operates as a well with a controller and allows testing and developing of control algorithms. The next developing applies control technics to PCP system to optimize pumping velocity to achieve productivity and durability of downhole components. The mathematical model is linearized to apply conventional control technics including observability and controllability of the system and develop design rules for PI controller. Stability conditions are stated for operation point of the system. A fuzzy rule-based control system are developed from a PI controller using a inference machine based on Mandami operators. The fuzzy logic is applied to develop a specialist system that selects PCP equipments too. The developed technics to simulate and the linearized model was used in an actual well where a control system is installed. This control system consists of a pump intake pressure sensor, an industrial controller and a variable speed drive. The PI control was applied and fuzzy controller was applied to optimize simulated and actual well operation and the results was compared. The simulated and actual open loop response was compared to validate simulation. A case study was accomplished to validate equipment selection specialist system

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The Brazilian caatinga is characterized by low annual rainfall and arid soils. Several cactaceae, either native or adapted species, grow in this semi-arid region, including the prickly pear (Opuntia fícus indica) and facheiro ((Philosocereus pachycladus Ritter) which produce underexploited edible fruits. In addition to these species, the algaroba is a leguminous with little studied technological applications and bioactive potential so far. Therefore, this research aims to investigate the physicochemical, bioactive and functional attributes of the prickly pear and facheiro fruit pulps and the algaroba flour. Specifically, this study approaches the physicochemical characterization, total phenolic compounds (TPC) and the betalain identification and quantification by HPLC-DAD-ESI-MS. It is also investigated the DPPH antioxidant capacity and the antienzymatic activities against alpha-amylase and alphaglucosidase of water and ethanolic extracts of these food material. In order to address their potential to be used as food ingredients, juice blends prepared with mixtures of cajá and prickly pear, biofilms with facheiro and cereal bars with algaroba flour were elaborated and analyzed. The prickly pear fruits presented low acidity and high sugar content when compared to facheiro. The Philosocereus pachycladus Ritter fruits had higher protein and ash content, but the algaroba flour was the species with higher protein and sugar content among all. The algaroba flour also presented outstanding food fiber content, which reveals its potentiality to be used as a natural intestinal regulator. The TPC of water and ethanol extracts ranged from 3.87 to 16.21 mg GAE/100g for algaroba flour, 79.24 to 110.20 GAE/ 100g for prickly pear and 412.23 to 539.14 mg GAE/100g for facheiro. The 70% (w/v) ethanol extract reached the highest DPPH antioxidant activity, which was linearly correlated to its high TPC content. In regard to the enzymatic inhibitory activities, the best performance was observed for the prickly pear extracts which presented a moderate inhibition for both investigated enzymes, but interestingly, no alpha-glucosidase inhibition was observed for facheiro extracts. This work shows, for the first time in the literature, the functional attributes of facheiro fruits, as well as the presence of betacianins and isobetanin in the pulp of this exotic fruit. When it comes to the food products developed here, the sensory attributes that better described the juice blend cajá-prickly pear were sweetness, acidity, color yellow-orange, body, turbidity and cajá flavor. The discriminative test applied for cereal bars produced with and without algaroba revealed that the texture was the only sensory attribute that differed (p<0.05) between these two samples. It was also observed that the addition of facheiro extracts did not influence the visual characteristics of the biofilms. Overall, this work unveils the physicochemical and bioactive attributes of these commercial and technologically underexploited species widely found in the Brazilian caatinga and presents alternatives for their rational use

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This research studies the argumentative process developed by the Basis Educational Movement (MEB), using as corpus the booklet Viver é lutar , and other lesson plans of the Educational Rural Radio from Natal. It has as objectives reveal the argumentative strategies in the discursive production of MEB, exploring the meaning effects suggested by its production conditions, and the ideological positions defended, in addition to this, verify how the booklet and the radio classes dialogued in the argumentation of their theses. So, the study is guided by the Discourse Analysis presuppositions, by the Argumentation Theory, by the conceptions of Popular Education, as well as the conception language dialogical language conception, recurring to Bakhtin (1995). The research adopts the documental characteristic of qualitative nature with an interpretative basis. The analysis of the data permitted us to confirm that the pedagogical didactic material discourse of MEB was produced in a social-historical-ideological context in what the education was seen as a social liberation instrument, being able to transform the Brazilian people and the Brazilian unequal structure. The results reveal that the booklet and the classes assume a position remarkably in favor of the popular classes, structured by the argumentative techniques that intended to convince, and to persuade the auditorium. Thus, the argument was based initially on the convincing of youths and of adults for, afterwards, to construct a persuasion to the learners, in terms of referring to act on the reality to transform it, according to their desires of social justice

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The robustness and performance of the Variable Structure Adaptive Pole Placement Controller are evaluated in this work, where this controller is applied to control a synchronous generator connected to an infinite bus. The evaluation of the robustness of this controller will be accomplished through simulations, where the control algorithm was subjected to adverse conditions, such as: disturbances, parametric variations and unmodeled dynamic. It was also made a comparison of this control strategy with another one, using classic controllers. In the simulations, it is used a coupled model of the synchronous generator which variables have a high degree of coupling, in other words, if there is a change in the input variables of the generator, it will change all outputs simultaneously. The simulation results show which control strategy performs better and is more robust to disturbances, parametric variations and unmodeled dynamics for the control of Synchronous Generator

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Neste estudo procurou-se identificar e comparar as estratégias maternas para a alimentação de filhos e as características da interação das mães com crianças desnutridas e eutróficas. Oito pares de mães/crianças desnutridas e oito pares de mães/crianças eutróficas (com idades entre 9 e 24 meses), moradores de áreas pobres, foram observados e filmados durante uma refeição nos domicílios. A partir dos vídeos, as estratégias foram identificadas e os episódios analisados qualitativamente, buscando-se apreender as características peculiares da interação, especialmente a responsividade materna. Não se observaram grandes diferenças nas estratégias utilizadas pelas mães dos dois grupos. As observações de episódios mostraram que alimentar uma criança é um processo altamente interativo, que depende das habilidades e das características de ambos parceiros. O sucesso alimentar pareceu associado a condições contextuais, à responsividade materna, mas, também ao apetite e à flexibilidade da criança. Sugere-se que, nos projetos direcionados a crianças desnutridas, ao lado de suplementos e orientações alimentares se dê atenção especial à autoestima materna e que se capacite as mães a lidar com a criança inapetente.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)