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1
artículo
Publicado 2022
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The objective of this research was to identify the risks and impacts to the environment and public health generated by ship dismantling operations in Peru, through the shipyard and dry dock services, whose regulations are supported by the Hong Kong International Convention for the Safe and Environmentally Sound Recycling of Ships and the scrapping plans authorized by the National Maritime Authority as the supervisory and supervisory entity of these activities. In this sense, the potential danger of some chemical substances adhering to the process residues was analyzed; such as asbestos, Volatile Organic Compounds, Polychlorinated Biphenyls and lead, with bioaccumulative and biopersistent capacity to insert themselves in the trophic chain and alter their ecological niche, due to their inadequate handling and final disposal that result in risks associated with the occupational health and s...
2
tesis de grado
Publicado 2006
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In the present work of study "Effect of the Humus of worm on the production of the cultivation of Hibrid Chinese Cabbage (Brassica campestris) var. Pekinensis in Tarapoto- Peru ". 1 look for the optimum/ good dose level of security that the production increases.The work was in the Found Miraflores of property of the faculty of Agronomy of the National University of San Martín, located in the sector from Ahuashiyacu to 3,5 kilometers of Tarapoto. The objectives of the work were to evaluate the effect of four levels of worm humus in sorne agronomic characteristics and on the yield of the cultivation of hybrid Chinese cabbage (Brassica campestris) Var. Pekinensis in Tarapoto- Peru, Was also to carry out the economic analisis of the treatments in study based on the relateonship benefiU cost to determine the profitability. The ground was of sandy frak type, with a strongly sour pH 4.85, half...
