96 research outputs found

    Programa de microcomputador, em linguagem Basic, para o dimensionamento de canais de irrigação.

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    bitstream/item/65886/1/CPAO-DOC.-24-86.pd

    Determinação da evapotranspiração potencial decendial de Dourados, MS, por meio de métodos indiretos.

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    bitstream/item/65866/1/CPAO-DOC.-16-85.pd

    AgroHidro: rede de pesquisa em agricultura e recursos hídricos.

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    O crescimento populacional demandará mais alimentos e fibras, fato que, aliado às novas demandas bioenergéticas de bases renováveis, alterará os padrões atuais de uso dos recursos hídricos no meio agrícola. O aumento da competição pelo uso da água entre os diversos setores da sociedade implica na necessidade de utilizar esse recurso hídrico de modo mais eficiente, garantindo a sustentabilidade da produção nos diferentes setores da sociedade. Isto assegurará o desenvolvimento e a competitividade econômica do País, de forma diferenciada de outros

    National Assessment of Human Health Effects of Climate Change in Portugal: Approach and Key Findings

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    In this study we investigated the potential impact of climate change in Portugal on heat-related mortality, air pollution–related health effects, and selected vectorborne diseases. The assessment used climate scenarios from two regional climate models for a range of future time periods. The annual heat-related death rates in Lisbon may increase from between 5.4 and 6 per 100,000 in 1980–1998 to between 8.5 and 12.1 by the 2020s and to a maximum of 29.5 by the 2050s, if no adaptations occur. The projected warmer and more variable weather may result in better dispersion of nitrogen dioxide levels in winter, whereas the higher temperatures may reduce air quality during the warmer months by increasing tropospheric ozone levels. We estimated the future risk of zoonoses using ecologic scenarios to describe future changes in vectors and parasites. Malaria and schistosomiasis, which are currently not endemic in Portugal, are more sensitive to the introduction of infected vectors than to temperature changes. Higher temperatures may increase the transmission risk of zoonoses that are currently endemic to Portugal, such as leishmaniasis, Lyme disease, and Mediterranean spotted fever

    A manifesto for future generation cloud computing: research directions for the next decade

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    The Cloud computing paradigm has revolutionised the computer science horizon during the past decade and has enabled the emergence of computing as the fifth utility. It has captured significant attention of academia, industries, and government bodies. Now, it has emerged as the backbone of modern economy by offering subscription-based services anytime, anywhere following a pay-as-you-go model. This has instigated (1) shorter establishment times for start-ups, (2) creation of scalable global enterprise applications, (3) better cost-to-value associativity for scientific and high performance computing applications, and (4) different invocation/execution models for pervasive and ubiquitous applications. The recent technological developments and paradigms such as serverless computing, software-defined networking, Internet of Things, and processing at network edge are creating new opportunities for Cloud computing. However, they are also posing several new challenges and creating the need for new approaches and research strategies, as well as the re-evaluation of the models that were developed to address issues such as scalability, elasticity, reliability, security, sustainability, and application models. The proposed manifesto addresses them by identifying the major open challenges in Cloud computing, emerging trends, and impact areas. It then offers research directions for the next decade, thus helping in the realisation of Future Generation Cloud Computing

    Prospects for Payments for Ecosystem Services in the Brazilian Pantanal: A Scenario Analysis

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    The present study investigates the prospects for a large-scale implementation of Payments for Ecosystem Services (PES) schemes in the Brazilian Pantanal wetland. Despite increasing environmental threats associated with development pressures and the growing interest of public and private organizations, no PES schemes are currently in place in the Pantanal. Through an exploratory scenario analysis, this article determines the prospects for PES in the area. The findings suggest that a large-scale implementation is unlikely, as this would require much higher levels of environmental awareness among local decision makers and low substitution rates of ecosystem services by technology. Furthermore, strong socioeconomic inequality between inhabitants of the Pantanal lowlands and wealthy farmers of the neighboring uplands means that potential suppliers of ecosystem services would face very high opportunity costs to participate in PES schemes. The research findings are also relevant to other environmentally sensitive regions experiencing rapid economic growth and weak environmental regulation. </jats:p
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