908 resultados para Urban transportation - Environmental aspects
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Prepared by Transportation Systems Center.
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Mode of access: Internet.
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"PC80-2-6C".
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"Report no. : DOT-TST-76T-31."
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Final report; May 1978.
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"DOT-T-89-12."
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La actividad minera ha impulsado la economía local en naciones desarrolladas y en vías de desarrollo, especialmente en el Cono Sur de América Latina, por atraer capital externo y nuevos actores a las zonas donde se concentra la extracción. Sin embargo, este proceso, particularmente en esta región, ha promovido modalidades de desarrollo desigual que afectan tanto a las zonas urbanas como a las rurales, producen transformaciones socioespaciales, y crean barreras físicas y sociales. El presente artículo forma parte de una serie de estudios sobre desarrollo urbano en zonas mineras realizados en Australia y en Chile, en este último caso en la ciudad de Antofagasta, en el norte del país. Su propósito es ampliar el conocimiento sobre la segregación socioespacial, específicamente de diversas dimensiones del desarrollo urbano (espacial, institucional, socioeconómica), mediante la aplicación de enfoques teóricos y analíticos que permiten abordar el tema en forma integral.
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The Brazilian state of Paraná exhibits a violent geography of inequality and duality, hosting both the most developed city in the country, internationally recognized by its urban and environmental innovations, and southern Brazil’s most concentrated cluster of poverty and underdevelopment. Over the course of the past decades, the state underwent a major economic transformation, modernizing and increasing its industrial structure and shifting to the service sector with a larger participation of the knowledge economy. This study is concerned on the interplay between formal education and socioeconomic development during this process, and above all its spatial character. It attempts make sense of the rich literature on education and growth and/or development, discussing it through the lenses of human geography and planning. In order for the analysis to be possible, this study created a consistent database of municipal scores of education over the course of 40 years, dealing with changing census methodologies and municipal boundaries. Making use of modern exploratory spatial data analysis combined with spatial regressions, the study identifies a clustered, time-persistent interplay between education and development that is stronger for low and basic levels of education. Moreover, it provides evidence that not only education is a predictor of future development, but also that analyses of this kind must take into consideration spatial autocorrelation in order to be accurate.
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Senior thesis written for Oceanography 445
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Senior thesis written for Oceanography 445
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Senior thesis written for Oceanography 445
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Senior thesis written for Oceanography 445
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Thesis (Master's)--University of Washington, 2016-06
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Various factors affecting N-2 fixation of a cultured strain of Trichodesmium sp. (GBRTRLI101) from the Great Barrier Reef Lagoon were investigated. The diurnal pattern of N2 fixation demonstrated that it was primarily light-induced although fixation continued to occur for at least 1 h in the dark in samples that had been actively fixing N-2. N-2 fixation was dependent on the light intensity and stimulated more by white light when compared with blue, green, yellow and red light whereas rates of N-2 fixation decreased most under red light. Inorganic phosphorous concentrations in the lower range of treatments up to 1.2 muM significantly stimulated N-2 fixation and further additions promoted little or no increase in N-2 fixation. Organic phosphorous (Na-glycerophosphate) also stimulated N-2 fixation rates. Added combined nitrogen (NH4+, NO3-, urea) of 10 muM did not inhibit N-2 fixation in short-term studies (first generation), however it was depressed in the long-term studies (fifth generation). (C) 2003 Federation of European Microbiological Societies. Published by Elsevier Science B.V. All rights reserved.