350 resultados para Eficiência coletiva


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This paper aims at comparing the national and international incentive policies in energy efficiency investment and presenting the main trends, measures adopted and economical and environmental results obtained, as well as possible improvements and expansions of these programs. This analysis is justified by the current moment, not only of the Brazilian Power Systems (SEB) but also of the global power systems with the constant increase of demand and depletion of natural resources implying in a need of a better use of them and of the power they generate, which directly affects the losses on the generation, transmission, distribution and consumption of energy, in addition to reducing the impacts on the environment. At last but not least, through this study it was possible to gleam not only at new possible ways for these programs, but also failures and inefficiencies that can be improved in the measures currently being used

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This paper addresses methods of reducing the electric energy consumption on residences by the means of constructive measures and replacement of electric devices. Analyzing their impacts on residential and national level based on data issued by IBGE (Brazilian Institute of Geography and Statistics) and PROCEL (National Program for Electricity Conservation).

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Energy efficiency is an increasingly important issue due to the current scenario where increasing demand is growing faster than the energy supplied. It is important, therefore, analyze and minimize electrical system losses. This study conducts a comparison of a system formed by a photovoltaic generator feeding an LED lamp directly without steps DC-AC -DC conversion, and a system using these conversion steps for the same lamp power. Losses in conversion steps are quantified and the degradation of power quality occurred due to conversion is evaluated

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Pós-graduação em Ciência Florestal - FCA

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Pós-graduação em Genética e Melhoramento Animal - FCAV

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The current reports the case of a young patient with malocclusion Class II division 1 on permanent dentition treated in two stages, rthopedics and orthodontics, respectively. At first, the banded Herbst appliance was used duringa 7 months period, followed by a T4K appliance, Trainer for Kids used as retention, and on the second stage the corrective Orthodontics was performed. The results showed the acquirement of a Class I dental relationship, which was kept stable, with excellent intercuspation, even after 5 years of the removal of the Herbst appliance, as well as the correction of the overjet and the reduction of the facial profile convexity. It can be concluded that the Herbst appliance was very efficient in correcting the Class II malocclusion, long term, also providing a very favorable effect on the facial profile.

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Introduction: Currently, there are many questions regarding the cleaning methods seeking greater efficiency and less loss of burs. Aim: the aim of this study was to evaluate the influence of cleaning methods on the cutting efficiency and morphological characteristics of stainless steel burs tungsten carbide (carbide). Materials and method: Thirty burs were divided into five groups (n = 5) according with the cleaning method: L1 - steel brush, L2 - nylon brush, L3 - ultrasound  +  distilled water, L4 - ultrasound + descaling solution and L5 - no cleaning method (control). The burs were used for the cutting of bovine enamel during six periods of 12 minutes each. After each period, the burs were cleaned (except L5 ) following the protocol established for each group. The cutting efficiency was determined by mass loss and morphological characteristics. Result: The average amount of wear after 72 minutes of use were L1  = 0.3558 g; L2  = 0.4275 g; L3  = 0.4652 g; L4  = 0.4396 g e L5  = 0.4854 g; significant differences in the time of use (p  <  0.001) and cleaning method (p  <  0.001). The L1 group showed the worst performance. Regardless of the experimental group, morphological analysis revealed alterations in the cutting blades soon after the first 12 minutes, being L1 the most affected group. Conclusion: The cleaning with wire brush was the most damaging method to the cutting efficiency and to the morphology of carbide burs.

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The composite resin is the material of election for direct restorations in posterior teeth currently. The restorative dentistry aims to improve each day the material and facilitate the restorative technique. This paper describes the technique of occlusal matrix made to speed up and preservation the occlusal surface of a first molar tooth affected by caries lesion. A new resin-based composite was used called Silorane, which may be placed in larger increments due the material has low shrinkage and polymerization stress. The use of occlusal matrix associated with a low shrinkage resin composite can simplify the clinical work, and result in a restoration with excellent reproduction of anatomical.

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Essa coletânea reúne alguns trabalhos apresentados e discutidos no “Encontro internacional participação, democracia e políticas públicas: aproximando agendas e agentes”, realizado na Faculdade de Ciências e Letras da Unesp de Araraquara em abril de 2013. O encontro foi organizado pelo Grupo de Pesquisa Participação, Democracia e Políticas Públicas, formado por docentes e pesquisadores ligados ao Departamento de Antropologia, Política e Filosofia e também ao Departamento de Administração Pública desta faculdade. A proposta do encontro partiu do diagnóstico de ambos os departamentos da necessidade de se ampliar os debates que relacionem as temáticas da participação, das políticas públicas e da democracia no Brasil e na América Latina, no atual contexto de insuficiência das instituições políticas calcadas no âmbito da democracia liberal e de uma notória “crise da representação”. O livro foi dividido em três partes, “Ação coletiva e institucionalização: interfaces socioestatais”, que trata dos processos de institucionalização dos movimentos sociais; “Instituições participativas da teoria à implementação: dilemas e desafios”, sobre estratégias de governança; e “Participação como política e a política da participação: difusão, impactos, poder”, sobre políticas públicas e o trabalho das ONGs nas ações governamentais.

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Pós-graduação em Zootecnia - FCAV

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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This is a reflection upon 17 years of experience in the production of an interdisciplinary scientific journal, the publication “Interface: Communication, Health, Education,” whose scope is in the fields of Collective (Public) Health, Education and Communication. It also examines retrospectively the themes published by the journal, seeking to identify them in different sections of this publication. Finally, the evolution of the journal is analyzed.