62 resultados para Balança


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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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Forest species with economic potential, such as aroeira (Schinus terebinthifolius Raddi.), require selection of individuals with superior characteristics for use in forest restoration projects and for establishment of commercial plantations. These plantations can contribute to the sustainability of natural populations of species in the remaining forest fragments, in areas of permanent preservation, legal reserves or other areas of ecological significance. It was evaluated the fruits' yield, morphometry and viability of seeds from 15 individuals of aroeira, collected in different fragments in the region of Lower São Francisco river, Sergipe State. The fruit yield was estimated by Fornier's intensity index, and the morphometric characteristics were obtained with a digital paquimeter and analytical balance. The viability and vigor were evaluated by germination percentage and germination speed index (GSI), under controlled conditions. The results of fruit yield were subjected to variance analysis, and the means were compared by Tukey (p <0.05). The other variables means were compared by Scott-Knott test (p<0.05). The individuals differed in Fournier's indices (indices 1, 2, 3 and 4) and in the size of fruits and seeds. The germination varied from 0 to 83% and the GSI from 0.00 to 0.98. The phenotypic differences observed among individuals for fruit yield, and morphophysiological characteristics can be used in forest restoration and establishment of provenances/progenies tests, aiming discrimination of superior material for future commercial plantations.

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The leather footwear industry is an important sector in the Brazilian economy. The tannery industry accounted for $ 2.05 billion to exports in 2011, which represents a contribution of 6.86% to the Brazilian balance of trade. However, it is a highly polluting industry generating highly toxic and hazardous waste. Therefore, it is extremely important to search for environmental management actions that allow a cleaner production and waste recycling to prevent its discharge into the environment resulting in the deterioration of nature and quality of human life. Thus, based on a literature review and exploratory research, this study consisted of an analysis of some environmental management actions adopted by the leather industry in Franca - SP verifying if the industries have certifications or follow standards that characterize a responsible environmental management. This study is justified by the fact that tanneries and footwear industries produce highly hazardous waste, and therefore environmental actions are necessary to treat the waste effectively in order to minimize its environmental impacts. The literature review and empirical research conducted demonstrated the development of new techniques and technologies aiming at mitigating the impacts of leather waste in the environment. These actions are crucial for companies to remain competitive and focused on sustainability in this rapidly growing market.

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The air included in droplets generated by spray nozzles directly int0erferes in transport, deposition and retention of the droplets after its impact on the target. The objective of this study was to analyze the interference of adjuvants in the amount of air included in droplets generated by spray nozzles. The treatments were composed by four spray solutions containing mineral oil, vegetable oil, surfactant and water, and three spray nozzles, two air induction type and one pre-orifice. The air included was calculated by the difference between the volume of spray mix (air plus liquid) and only the liquid, which was made by means of sprayed samples captured in a funnel and collected in a graduated cylinder. The surface tension was estimated by the gravimetric method using a precision scale and a graduated pipette. The surfactant provided the largest percentage of air included in the spray. For the surface tension, the mineral oil and the surfactant had the lowest values. It was concluded that the use of adjuvants had a direct influence on the percentage of air included. In addition, products with greater ability to reduce surface tension and to form homogeneous solutions provided the increase in the percentage of air included in the droplet.

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O objetivo deste artigo é verificar a prevalência de desnutrição em adolescentes de duas cidades brasileiras e analisar possíveis associações com a prática de atividades físicas durante horários de lazer. Participaram do estudo 2782 adolescentes de 10 a 17 anos, de escolas da rede pública e privada de uma cidade do sudeste e uma da região sul. O peso e a estatura foram avaliados por balança digital e estadiômetro, respectivamente. A prática de atividade física considerou as variáveis: prática de esportes; andar (tratada como caminhada); andar de bicicleta e assistir televisão. O teste qui-quadrado e a regressão de Poisson foram empregados. A prevalência de desnutrição foi de 13,0%, sendo maior no sexo feminino (14,5%) quando comparado ao masculino (11,9%) [p = 0,047]. A prática esportiva foi associada com menor ocorrência do desfecho (p = 0,001). Foi significativamente menor a prevalência de desnutrição entre aqueles que mantinham frequência moderada de caminhadas em comparação àqueles que apresentavam baixa frequência dessa prática. A prevalência de desnutrição no presente estudo pode ser considerada elevada. Além disso, a condição nutricional inadequada nos adolescentes aparentemente está associada a comportamentos de risco à saúde, caso da prática insuficiente de atividade física durante horários de lazer.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Pós-graduação em Ciências Sociais - FFC

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

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The mobility of water in the soil is a difficult process to be quantified. During precipitation, there is a portion of the water that infiltrates, which is very important for recovering the groundwater balance. This work studies the mobility of water in sandy soils with different textures and residual soils through experiments mounted in lysimeters. The lysimeters were mounted on acrylic cylinder with 11.3 cm diameter and 25.0 cm in length. The sand was deposited using the process sand rain. In the tests it was maintained a hydraulic head of two centimeters above the surface with the aid of a Mariotte flask. The portions of water were controlled in the experiments using relations between weight and volume measurements over time. The data were obtained by monitoring the input and output volumes of water through calibrated reservoir and system weight by an electronic balance. The infiltration front was monitored with the aid of a digital camera. The results indicate that the smaller the particle size of the sand, the lower the speed of the saturation front, the higher the retained volume, the smaller the basic rate of infiltration and the lowest speed of percolation. Moreover, the rate of water loss in the evaporation process indicated no significant difference with variation of the particle size of the samples

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The study aims to analyze the mechanization of the main coffee growing region in the south of Minas Gerais, in force, especially from the 1970s. But you get new content from the1990s, with the introduction of new information technologies. The use of machines in production processes appear as one of the great transformations of coffee in the period modern after globalization, requiring a labor more specialized, although resulting in unemployment in rural areas. So in the period of globalization new technologies gradually replace manual work. In the coffee farm, the old ways of the production (that handed down from father to son) aren't accepted by the global scientific agriculture (Santos, 2000:88). They are considered inefficient and low quality, but not attendant of patterns the international market. The national companies producing agricultural machines for coffee with emphasis on the company Pinhalense Agricultural Machinery SA believe that the producers of the region are its biggest customers in the country, considering the degree of mechanization more pronounced compared to other coffee growing regions. Analyze the importance of the coffee region with a contribution in the indicators of export and trade surplus in the Brazil and State of Minas Gerais

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A indústria de transformação é considerada de suma importância para o desenvolvimento do país tanto em termos econômicos como sociais, visto que é responsável por encadeamentos produtivos e efeitos multiplicadores no emprego e na renda do país. Entre os anos de 2000 e 2011 ainda que haja indícios de desindustrialização da economia brasileira, devido à queda da participação do valor adicionado da indústria de transformação no Produto Interno Bruto e à deterioração da indústria de transformação frente ao comércio exterior, no que concerne ao emprego, em termos absolutos e relativos, não há suspeitas de que esteja em curso no Brasil um processo de desindustrialização. Paralelamente, ressalta-se que embora se façam presentes sintomas da chamada “doença holandesa” no Brasil, ou seja, balança comercial superavitária em commodities acompanhada de déficits da indústria de transformação e de taxa de câmbio valorizada; o Brasil não parece sofrer da “doença”

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Health Care Waste (HCW) represents 1%, and it has presently gained a lot of importance. Adequate management is one of the great challenges to be faced by health care centers. It has gained distinction and been widely discussed by members of the sectors involved with sanitation, public health and environmental issues due to waste physical, chemical biological characteristics, which pose potential risk to the environment and public health. The present study aims at evaluating HCW internal management by following all its phases, determining indicators, classifying and quantifying, establishing production rates (kg /patient/day) for the sector and designing materials to disseminate appropriate HCW disposal in the Emergency Room of the UNESP University Hospital in the city of Botucatu according to the guidelines presently in force. : From June to October 2011, the waste flow was observed from its production to final disposal. Four weight measurements were performed on four consecutive days in the month of August by using a properly calibrated (in grams) digital scale at the times scheduled for collection of the produced waste. Hence, the daily and monthly amounts were estimated according to their classification. All the waste packaged in the bags in garbage cans in the Emergency Room for a 24-hour period was considered to be a sample. Separation was not adequately performed in that sector, and waste from Group A was mixed with that from Group D. The amount of infectious waste produced in the sector corresponded to 87.80 %, common waste to 10.93 % and recyclable waste to 1.27%. The mean daily HCW production was of 123.300 kg/day, and the total monthly production was of 3,822 kg/month, which was distributed as follows: Group A 3,355,750 kg/month; Group D 417,570 kg/month and recyclables 48,670 kg/month. The production rate corresponded to 0.47 kg/patient/day, thus showing... (Complete abstract click electronic access below)