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Impactos da Covid-19 na Economia: limites, desafios e políticas
Cadernos de Prospecção, 2020Neste estudo são analisados os impactos da Covid-19 na economia. Especificamente são analisados os choques de oferta, demanda e financeiros, as políticas macroeconômicas e as lições e oportunidades. O artigo almeja responder à seguinte questão: quais são
R. R. F. Junior +1 more
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Global Biogeochemical Cycles, 2017
AbstractPhosphorus is believed to be the globally limiting nutrient in the modern ocean, but a number of nutrients have been invoked as limiting the Proterozoic biosphere. Mass balance calculations suggest that Proterozoic net primary productivity must have been 1 to 2 orders of magnitude less than today in order to maintain low oxygen levels despite ...
Thomas A. Laakso, Daniel P. Schrag
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AbstractPhosphorus is believed to be the globally limiting nutrient in the modern ocean, but a number of nutrients have been invoked as limiting the Proterozoic biosphere. Mass balance calculations suggest that Proterozoic net primary productivity must have been 1 to 2 orders of magnitude less than today in order to maintain low oxygen levels despite ...
Thomas A. Laakso, Daniel P. Schrag
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The Journal of the Acoustical Society of America, 1998
Today, traffic noise due to cars, trains, and airplanes is the main noise source in urban areas. In accordance with the European Commission’s Green paper on Future Noise Policy, 22% of the European population are exposed to outdoor A-weighted noise levels higher than 65 dB and more than 45% are exposed to levels between 55 and 65 dB.
Tor Kihlman, Wolfgang Kropp
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Today, traffic noise due to cars, trains, and airplanes is the main noise source in urban areas. In accordance with the European Commission’s Green paper on Future Noise Policy, 22% of the European population are exposed to outdoor A-weighted noise levels higher than 65 dB and more than 45% are exposed to levels between 55 and 65 dB.
Tor Kihlman, Wolfgang Kropp
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The Limitations of “Limitations”
The American Journal of Bioethics, 2004It is heartening to see the authors of “Limitations” (Levine et al. 2004) lamenting that, as a salient concept in research ethics, vulnerability has been a mess.
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Os "Limites do Crescimento" 40 Anos Depois
International Workshop on Reversible Computation, 2012Quarenta anos após a sua publicação, "Limites do Crescimento" permanece como uma obra fundamental no debate ecológico-econômico contemporâneo, e que em tempos de "Rio + 20", "desenvolvimento sustentável" e "economia verde" merece uma criteriosa análise ...
Leandro Dias de Oliveira
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