Gestão ambiental e competitividade: um estudo sobre os fatores que afetam a decisão de compra de produtos orgânicos na cidade de Teresina-PI

The organic products represent one of the main trends of alimentary consumption in the new century. In Brazil, the answer is already well representative which it becomes the country, as a great consuming and exporting market of products of LVF type. The objective of this research was to investigate the factors capable to influence the food consumer in its purchase decision of organic products in the supermarkets of Teresina, capital of Piauí State. The methodology was exploratory and descriptive, using survey, with closed and opened questions in 542 interviewed. The questionnaire was based on projected scales to evaluate the factors that can influence the purchase decision of organic products, whose variable had been grouped in the following groups: behavior, knowledge, interest, competitiveness, importance, barrier and profile. The used statistical techniques were descriptive analysis and multiple regression analysis. The results demonstrate interest of the population in paying more for the organic product, due to better quality of life, however it lacks to one better spreading and greater sensitization to attract these consumers. Some recommendations and proposals are presented after the results, as suggestions for future research

Controle Adaptativo Robusto para Filtros Ativos de Potência Paralelo

Conventional control strategies used in shunt active power filters (SAPF) employs real-time instantaneous harmonic detection schemes which is usually implements with digital filters. This increase the number of current sensors on the filter structure which results in high costs. Furthermore, these detection schemes introduce time delays which can deteriorate the harmonic compensation performance. Differently from the conventional control schemes, this paper proposes a non-standard control strategy which indirectly regulates the phase currents of the power mains. The reference currents of system are generated by the dc-link voltage controller and is based on the active power balance of SAPF system. The reference currents are aligned to the phase angle of the power mains voltage vector which is obtained by using a dq phase locked loop (PLL) system. The current control strategy is implemented by an adaptive pole placement control strategy integrated to a variable structure control scheme (VS-APPC). In the VS-APPC, the internal model principle (IMP) of reference currents is used for achieving the zero steady state tracking error of the power system currents. This forces the phase current of the system mains to be sinusoidal with low harmonics content. Moreover, the current controllers are implemented on the stationary reference frame to avoid transformations to the mains voltage vector reference coordinates. This proposed current control strategy enhance the performance of SAPF with fast transient response and robustness to parametric uncertainties. Experimental results are showing for determining the effectiveness of SAPF proposed control system

Estratégia de controle robusto para filtro ativo paralelo sem detecção de harmônicos de correntes

Conventional control strategies used in shunt active power filters (SAPF) employs real-time instantaneous harmonic detection schemes which is usually implements with digital filters. This increase the number of current sensors on the filter structure which results in high costs. Furthermore, these detection schemes introduce time delays which can deteriorate the harmonic compensation performance. Differently from the conventional control schemes, this paper proposes a non-standard control strategy which indirectly regulates the phase currents of the power mains. The reference currents of system are generated by the dc-link voltage controller and is based on the active power balance of SAPF system. The reference currents are aligned to the phase angle of the power mains voltage vector which is obtained by using a dq phase locked loop (PLL) system. The current control strategy is implemented by an adaptive pole placement control strategy integrated to a variable structure control scheme (VS¡APPC). In the VS¡APPC, the internal model principle (IMP) of reference currents is used for achieving the zero steady state tracking error of the power system currents. This forces the phase current of the system mains to be sinusoidal with low harmonics content. Moreover, the current controllers are implemented on the stationary reference frame to avoid transformations to the mains voltage vector reference coordinates. This proposed current control strategy enhance the performance of SAPF with fast transient response and robustness to parametric uncertainties. Experimental results are showing for determining the effectiveness of SAPF proposed control system

Uma abordagem para promover o alinhamento entre a estratégia de negócio e a tecnologia de informação

Currently with the increase in complexity in doing business, organizations are seeking information systems that help to quickly respond to new demands in the processes of production of products and services. An information system is no longer just a support tool and has become an integral part of doing business. However, in spite of significant technological evolution in recent years, information systems that support business do not respond efficiently to the constant alterations that occur in many organizations. One of the main problems faced by information systems currently is the lack of strategic alignment between business strategy and information technology. The concept of strategic alignment can be defined as a way between business strategies and objectives and the strategies, objectives and functions of information technology in such as way as to contribute to the increase in competitivity of the organization over time. Strategic alignment together with strategic planning are important management instruments. Approaches for operationalizing this alignment are being developed currently but are still in their initial stages due to the fact that it is a relatively new concept in the literature. Another point that needs to be taken into consideration during the strategic alignment is the question of trackability between the business elements and IT. Trackability (Tracking) is necessary for example when one wishes to know exactly which goal defined in the business strategy was left out or not accepted due to a modification made in the IT strategy. Very few proposals present concrete ways supported by software systems in order to obtain strategic alignement while taking into consideration this trackability. Therefore the objective of this work is to propose the creation of a strategic alignment process supported by a software system which is capable of permitting trackability between the organizational objectives and the business processes based on formalization standards defined through a model oriented approach

Indústria calçadista brasileira e concorrência internacional: uma análise da qualidade dos produtos exportados e das estratégias adotadas pelas empresas (1989-2006)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Obtenção e caracterização de filmes de misturas de amido resistence e pectina como estratégia para liberação cólon específica de fármacos

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

O gestor no processo de formação de professores para o uso de meios digitais na construção de uma escola de qualidade

Pós-graduação em Educação - FCT

Estudo da competitividade em empresas industriais: o caso do arranjo produtivo local (APL) de Votuporanga

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Uma análise dos modelos de consórcio modular e condomínio industrial na indústria automobilística brasileira sob a perspectiva de estratégia de operações

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estudo da influência da adoção das práticas de manufatura enxuta na definição de prioridades competitivas: uma pesquisa survey em empresas da região de Bauru-SP

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Competitividade territorial do etanol

Pós-graduação em Geografia - IGCE

O governo de George W. Bush e sua guerra contra o terror: nova orientação tática à estratégia norte-americana

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Avaliação da qualidade de águas pluviais armazenadas e estudos de tratabilidade empregando filtro de pressão com diferentes meios filtrantes visando ao aproveitamento para fins não potáveis

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Impactos ambientais da mineração do folhelho pirobetuminoso nos meios físico e antrópico em São Mateus do Sul, Paraná

Pós-graduação em Geociências e Meio Ambiente - IGCE

Mobilidade geográfica como estratégia de sobrevivência de pescadores artesanais na Amazônia: o caso de Cubatão em Icoaraci, Pará

A mobilidade espacial é inerente à realização da pesca na Amazônia. Ela se realiza como estratégia de sobrevivência para a reprodução do pescador artesanal enquanto categoria social, como resposta à escassez do peixe, à poluição das águas e aos conflitos entre a pesca artesanal e o setor industrial. Neste estudo, busca-se identificar os diferentes tipos de mobilidade espacial realizada por pescadores artesanais da ocupação de Cubatão, localizada no distrito de Icoaraci. Os pescadores realizam a pesca em várias escalas. Como forma estratégica de manterem-se móveis, e garantir sua reprodução, o pescador utiliza a parceria para participar da composição da tripulação e na distribuição do produto da pesca. Por disporem de tecnologia simples efetivam uma jornada intensa de trabalho para escapar da competitividade com a pesca industrial. Como não conseguem acumular capital, permanecem com baixos níveis socioeconômicos. Se não mudar a condição do setor pesqueiro, a situação do pescador não se modifica, levando-o a realizar repetidas vezes a mobilidade, e mesmo a migração para outras localidades que permitam realizar a pesca, ou mudar de ocupação.