1000 resultados para Certificado energético


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Ps-graduao em Zootecnia - FCAV

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Estudos em humanos e animais tm demonstrado que a nutrio inadequada em fase crtica de desenvolvimento, como na gestao, pode causar alteraes da prole na vida adulta. Tais estudos levaram proposio da hiptese de programao fetal, segundo a qual o risco para desenvolver certas doenas funo no apenas da carga gentica ou dos hbitos de vida do indivduo adulto, como tambm da atuao de fatores ambientais em perodos crticos. O objetivo deste trabalho foi avaliar o efeito tardio da restrio calrica materna moderada (30%), na gestao e/ou lactao sobre o metabolismo energético da prole. Foram utilizados ratos Wistar, sendo os grupos experimentais divididos da seguinte forma: NN (filhotes nascidos de mes normais e colocados em gaiolas com mes do grupo normal na lactao), NR (filhotes nascidos de mes do grupo normal e colocados em gaiolas com mes restritas na lactao), RN (filhotes nascidos de mes restritas na gestao e colocados em gaiolas com mes normais na lactao) e RR (filhotes nascidos de mes restritas na gestao e colocados em gaiolas com mes restritas na lactao). Foram avaliados o peso corporal, a ingesto de alimentos, os depsitos de gordura, o ndice de adiposidade, lipdios plasmticos, gordura heptica e gordura da carcaa.. A restrio nutricional materna provocou alteraes significativas tanto em machos quanto em fmeas no perodo do desmame, entretanto no incio da idade adulta somente os machos apresentaram mudanas mais expressivas no metabolismo energético e no desenvolvimento corpreo. Houve uma reduo no peso corpreo dos animais machos dos grupos NR, RN e RR (8,9%, 9,0% e 14,2%, respectivamente). No entanto, somente os grupos NR e RR apresentaram diminuio nos teores de gordura heptica e triglicerdeos plasmticos. O fornecimento de dieta ad libitum na lactao s mes com ...

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Fundao de Amparo Pesquisa do Estado de So Paulo (FAPESP)

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The study evaluated the energy balance of the yellow passion fruit (Passiflora edulis Sims) production system in the region of Marilia-SP. There were analyzed the "inputs" of energy originated from biological, fossil, and industrial sources, and the "output" of energy in the form of fruits produced per unit area, as well as five energy indicators. The phytotechnical indices considered were: planting in February (seedling in tubes), production cycle: 18 months, and yield: 20 t/ha. The input energy totaled 173,707.86 MJ/ha. The most representative items corresponded to industrial indirect energy (38%) and to biological (34%). Chemical fertilizers and pesticides accounted for 65% and 31% of indirect energy industry, respectively. The activity generated 391,800.00 MJ per cycle/ha, and the culture productivity, 0.12 MJ/kg. The efficiency of the culture was 2.26. The net cultural energy totaled 218,092.15 MJ/ha. The energy balance was positive (126,050.23 MJ/ha). Energy efficiency was favorable, with a value of 3.64. The direct power consumption of fossil origin is significant in the system evaluated, but it still allows the production of the yellow passion fruit in an environmentally sustainable way.

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The objective of this work was to calculate the energetic values in passion fruit commercial beverages (whole juices, reconstituted juices, tropical juices, and nectars) by their centesimal composition. Then, the energetic values were compared to the caloric values as described on the nutritional facts from the beverageslabels. Analyses of moisture, protein, lipids, ashes, and carbohydrates were done in 25 commercialbeverages samples. In order to calculate the energetic value of each sample, the following conversion factors were used: 4 kcal.g-1 for carbohydrates, 4 kcal.g-1 for proteins and 9 kcal.g-1 for lipids. To allow the comparison of the results, the energetic values printed on the labels were converted into kcal.100g-1 usingthe beverages density. Overall, the commercial beverages calculated energetic values were similar to the nutritional facts.

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The knowledge of the workers energy content is essential to measure the energy availability for maintenance and performance of activities essences for the colony growth. But little is known about the workers energy content, and how much will be available to carry out activities, for example, the excavation of the nest. The present study determined the lipid content and energy content of the worker ants inactive before and after excavation activity. Through the lipids determination, it can be calculated the energy content of workers resting (standing) with those which excavated. The lipid content and energy content of the workers were on average 9.10.8% and energy content of the workers was on average 111.3154.71J, respectively, however, the experimental series did not differ significantly. Additionally, catabolic flux rate based in workers body mass was 14.7610.11W. It was concluded that the energy resource for the excavation of the nest is not coming from reserve lipid body, and thus the energy content of the workers did not change before and after excavation activity.

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Ps-graduao em Fisiopatologia em Clnica Mdica - FMB

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Ps-graduao em Engenharia Mecnica - FEG

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Ps-graduao em Desenvolvimento Humano e Tecnologias - IBRC

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Currently there are two car models that use electricity in their propulsion systems, the electric vehicle and the hybrid electric vehicle. The electric vehicles are classified as vehicles that use electric motors in their propulsion system and batteries as a power source, on the other hand, the hybrid vehicles are classified as vehicles that use both electric motors and internal combustion engines in their propulsion system, using both batteries and lquid fuels as a power source. The main goal of this work is to analyze the characteristics of electric and hybrid electric vehicles and demonstrate the unfeasibility of the electric vehicle in the current economic, political, energetic and environmental brazilian scenario, for this purpose it was realized a study about the current brazilian situation regarding to electricity generation, current conservation status of road network, lack of electrical infrastructure for charging batteries, national lithium reserves, environmental characteristics, tax incentives, economic scenario, oil market and political positioning related to the implantation of electric or hybrid electric fleets in nacional territory. The operational characteristics analysis of electric and hybrid electric vehicles in this current scenario leads to the conclusion that currently a growth of electric vehicles fleets on a national scale is totally impractical in the Brazil, Thus, the introduction of green vehicles probably will occur primarily with hybrid electric models, motivated mainly due the bigger autonomy of this models compared to electric models, lower cost of hybrid electric models compared to electric models, factors related to the lack of recharging infrastructure and also factors related to political positioning

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Currently there are two car models that use electricity in their propulsion systems, the electric vehicle and the hybrid electric vehicle. The electric vehicles are classified as vehicles that use electric motors in their propulsion system and batteries as a power source, on the other hand, the hybrid vehicles are classified as vehicles that use both electric motors and internal combustion engines in their propulsion system, using both batteries and lquid fuels as a power source. The main goal of this work is to analyze the characteristics of electric and hybrid electric vehicles and demonstrate the unfeasibility of the electric vehicle in the current economic, political, energetic and environmental brazilian scenario, for this purpose it was realized a study about the current brazilian situation regarding to electricity generation, current conservation status of road network, lack of electrical infrastructure for charging batteries, national lithium reserves, environmental characteristics, tax incentives, economic scenario, oil market and political positioning related to the implantation of electric or hybrid electric fleets in nacional territory. The operational characteristics analysis of electric and hybrid electric vehicles in this current scenario leads to the conclusion that currently a growth of electric vehicles fleets on a national scale is totally impractical in the Brazil, Thus, the introduction of green vehicles probably will occur primarily with hybrid electric models, motivated mainly due the bigger autonomy of this models compared to electric models, lower cost of hybrid electric models compared to electric models, factors related to the lack of recharging infrastructure and also factors related to political positioning

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OBJETIVO: Descrever o valor energético total e contribuio percentual de calorias por macronutrientes da alimentao de idosos domiciliados em Fortaleza/CE. MTODOS: Este estudo populacional, transversal e domiciliar. Participaram deste estudo 458 idosos (66,6% mulheres). As variveis avaliadas foram: valor energético total (VET) da alimentao e contribuio percentual de calorias por protenas, carboidratos e lipdios. Os resultados so apresentados sob a forma de mdias, desvios-padro e distribuio percentilar (P5, P10, P25, P50, P75, P90, P95). Os testes t-Student e anlise de varincia (ANOVA de uma via) com o teste Post Hoc LSD foram utilizados para verificar a diferena estatstica das mdias entre dois grupos e entre trs grupos ou mais, respectivamente. RESULTADOS: Ao comparar os valores mdios do VET entre as categorias das variveis socioeconmico-demogrficas foi encontrada diferena estatisticamente significativa entre as mulheres para cor, anos de estudo e nvel socioeconmico. Entre os homens foram encontradas diferenas para anos de estudo e nvel socioeconmico. O valor energético mdio da alimentao dos homens foi significativamente superior ao das mulheres. Entre as mulheres o valor mdio foi 1.236,4 kcal e entre os homens foi 1.475,8 kcal. Os valores mdios da contribuio percentual de calorias por protenas, carboidratos e lipdios foram semelhantes entre homens e mulheres. CONCLUSO: Os idosos deste estudo apresentam diferenas significativas nas mdias do valor energético da alimentao entre os sexos e entre as categorias de anos de estudo e nvel socioeconmico. As mulheres apresentaram, ainda, diferenas significativas entre as categorias de cor. A contribuio relativa mdia dos macronutrientes no valor energético da alimentao foi semelhante entre os sexos e grupos etrios.

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O objetivo desse artigo apresentar as caractersticas gerais de uma nova metodologia para planejamento energético urbano, detalhando os procedimentos para integrao de condicionantes de morfologia urbana, que constitui a primeira etapa de aplicao metodolgica. Esta abordagem inovadora e focada na integrao de estratgias e solues em morfologia e mobilidade urbanas, edifcios, energia e meio ambiente para planejamento de reas em desenvolvimento urbano, novas ou a serem requalificadas, na escala de distritos, bairros e unidades de vizinhana. A anlise dos resultados da aplicao metodolgica no caso da operao urbana gua Branca indicou que a ocupao urbana por edificaes e as densidades construda e populacional necessitavam ser compatibilizadas com a rea livre requerida ao adequado dimensionamento da seo viria, no que tange a aspectos de climatologia e de provimento de infraestrutura e demanda para mobilidade urbana. Esta era uma premissa para o aproveitamento da luz e da energia solar em edificaes e para que o sistema de transporte urbano fosse mais funcional e energeticamente mais eficiente.