1000 resultados para Perda de potência ativa


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One of the complications that concern prosthetists is bone loss peri-implant, because the success of dental implant treatment requires long-term maintenance of hard and soft tissues around the implant. Whereby the dental implants have not only the goal of restoring function, but also the aesthetics of the patient, the bone loss peri-implant can dramatically compromise the aesthetics of rehabilitation, particularly in anterior regions. The aim of this study was to analyze and reason, through literature review, the main factors that can cause bone loss in peri-implant and possible ways to prevent it.

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The aim of this study was to examine changes on anaerobic power after competitive period in professional soccer players. Twenty five male was evaluated before (PRE) and after (POS) competitive period. To assess anaerobic power was used running based on anaerobic sprint test (RAST), which were determined the maximum power (MAXP), medium power (MEDP), minimum power (MINP) and fatigue index (FI). The test was performed in the first (PRE) and the last (POS) training session of competitive period, wich lasted 20 weeks. There were no significant difference (p>0,05) in POS condition compared to PRE condition on MAXP (10,70 ± 0,95 vs 10,83 ± 0,87), MINP (8,48 ± 0,92 vs 8,28 ± 0,76), MEDP (9,52 ± 0,83 vs 9,41 ± 0,61) and FI (22,73 ± 7,48 vs 25,53 ± 8,79). There was no significant change on anaerobic power after a competitive period wich lasted 20 weeks in professional soccer players.

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Among the harmful health agents, it is given to the noise, one of the most present in urban and social environments. There are efficient measures to control the noise and the auricular Individual Protection Equipment (IPEa) is the most used. It has been observed the shortage in the comfortable and functional individual auditory protection products, related to durability, face to the efficiency right of the equipment. The main objective of this study was to recognize if there is effectiveness loss toward the used time on the Auditory Equipment, intra-auricular Individual Protection, of foam (3M), model 1110. It has been verified that the equipments suffer efficiency alteration according to the time of use, and the material consuming initiates reliable loss, mainly in audible frequencies going up to 100Hz, and from 16 days for sonorous pressure suffered started in 101dB 20Hz. For sonorous pressure suffered from 107dB to 20Hz, the reliable loss for the usage was of 8 days. The IPEas do not lose effectiveness on important attenuation by the daily use in frequencies from 1KHz until 20KHz. It has been concluded that there is effectiveness loss, according to the daily and frequent use of the IPEa studied.

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The objective of this paper is to propose a common definition for the term “Environmental Innovation”, starting with a systematic literature review, encompassing some of the most significant articles in this Field. The definition of Environmental Innovation proposed in this paper involves the main dimensions, motivations and barriers to the effectiveness of Environmental Innovation as a practice in organizations. We consider Environmental Innovation an essential issue for proactive environmental management. As a result, the authors expect to present a systematic definition of Environmental Innovation, which is of increasing relevance to the transition towards a more sustainable society.

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Para a realização deste experimento, foram utilizados um rebolo de óxido de alumínio instalado em uma retificadora plana, um dispositivo em forma de balança juntamente com o sensor de deslocamento, um sistema de aquisição de sinais e um dressador de ponta única de diamante. O processamento digital dos dados foi obtido com o software Matlab. Nos ensaios, foram aplicados diferentes graus de recobrimento e profundidade de dressagem e comparada a agressividade obtida. A partir dos dados resultantes, os parâmetros RMS, DPO e DPKS mostraram-se bons indicadores para a operação. Também ficou comprovado que para recondicionar e definir novas características para o rebolo é necessária a remoção de 120 um. Do estudo do espectro do dinal de EA, notou-se que não há componentes hormônicas com frequência superior a 200 KHz.

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

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Pós-graduação em Direito - FCHS

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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You can set the resistance training such as making a move against a resistance by performing a muscle contraction and generating a muscular adaptation. This form of training, was initially used only in training athletes aiming to strengthen and improve fitness. Some coaches did not give proper focus, as the increase in muscle mass would cause loss of flexibility and agility. But over time a huge evolution occurred within this area and the practitioners of resistance training are no longer just athletes, and reached the whole community, from young to elderly, being a physical activity that generates a large caloric expenditure and has several health benefits, improve the cardiovascular system and decreasing the amount of body fat in the body. Cortisol is a hormone secreted from a stressful stimulus to the body, secretion undergoes control of the hypothalamic-pituitary axis, which releases the hormone into the bloodstream andrenocorticotrópico, going to the adrenal cortex responsible for their release. This has catabolic function, acting in the metabolism of carbohydrates, proteins and lipids, as well as having an important effect antiflamatório. Testosterone is a steroid hormone cholesterol from being produced by the testicles in men, as in women is produced to a lesser extent in ovary and adrenal glands, has functions androgenic and anabolic. Androgen function is responsible for the development of male sexual characteristics, while on anabolic function operates in the growth of muscles and bones, influencing the development of the human body organs. Within the metabolic changes that occur in the resistance training testosterone plays an important role in protein synthesis, influencing the production of strength and / or power during exercise. The objective of this work is through a literature review to assess the effects of resistance training on the production of these hormones and the relationship between them

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Water erosion is one of the main processes responsible for soil degradation, resulting in loss of parcels of land suitable for agriculture, to the loss of agricultural inputs and the resulting drift of pesticides and excess sediment to rivers, causing phenomena such as the siltation and eutrophication of water bodies. Such a scenario makes it necessary to perform work of a technical and scientific to provide subsidies to land-use planning, in order to protect natural resources biotic and abiotic. To develop this work is necessary to find a unit of analysis capable of integrating the different elements of the landscape, hydrosphere, atmosphere, biosphere and lithosphere. Therefore we adopt for this work the watershed as main unit studies. From this question, this project will focus on the assessment of surface water erosion through MEUPS (Equation Modified Universal Soil Loss) predictive model. With the aid of maps, remote sensing products, and the use of geotechnology, this study aims to evaluate for the for Natural Erosion Potential the basin of the Jacutinga river, located in Rio Claro - SP

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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É comum nas áreas rurais a utilização de métodos de irrigação que consistem em bombear a água de açudes, lagoas e rios para irrigar a terra onde está sendo cultivada determinada cultura. Em geral esse bombeamento é feito por motores movidos á energia elétrica ou á óleo diesel. Este trabalho visa avaliar os motores elétricos de baixa potência que são usados para irrigar pequenas áreas plantadas através de bombeamento de água de açudes, lagoas etc. Os métodos a serem usados competem á aplicação da Física e do Calculo Diferencial e Integral, através do uso de conceitos,integrais definidas e do uso de sólidos de revolução para simulação. Poderão ser feitas associações entre vazão de água, potência necessária para o serviço, a quantidade de tempo que a reserva de água sustenta o bombeamento. Depois de feito os cálculos pode se concluir sobre o tipo de motor e potencia mais adequada para tal serviço. Este projeto visa avaliar o desempenho de motores elétrico de baixa potencia no bombeamento de água através de métodos pertinentes ao calculo diferencial e integral e ao mesmo tempo poder mostrar uma das várias aplicações desta disciplina. Após os cálculos realizados espera-se obter conclusões sobre os motores elétricos e fazer a associação do serviço que é recomendado para o seu uso. Serão utilizados métodos do cálculo diferencial e Integral para a avaliação do desempenho do motor e conceitos da Física para determinação e associação entre potência dissipada e vazão de água.