Abstract:The institutional reform of the State established in Ecuador during the last decade has aimed at regaining control of specific sectors such as the consumptive use of water. Since 2014, regulation, consumption, and use of water, especially in agriculture, have been analyzed through policies and fiscal instruments. This research presents itself in the context of the simulation of scenarios using positive mathematical programming, to analyze the economic impact of pricing policies on agro-food farms. Policies of fixed costs, water blocks, and volumetric prices are evaluated. The results show that the existing fixed costs do not reduce water consumption. In contrast, the scenarios of water blocks and volumetric prices impact on the behavior of farmers. The tendency of water consumption to the application of volumetric prices demonstrates that banana farms have a greater tolerance to the increase of water costs. On the other hand, the response to an increase in cost in the case of cacao, sugar cane, and rice depends on the productivity of farmers. The negative effects can lead to the abandonment of agriculture. Thus, volumetric policies are more efficient in reducing water consumption as well as in recovering the costs of the irrigation system.
The serum haptoglobin levels of 1,143 blood donors have been determined. A high average value has been found (216 -C 83 mg Hp per 100 ml) and it is speculated that this may be a consequence of a diminished red cell destruction in people submitted to too frequent blood donations. The correlations between haptoglobin, serum iron, serum protein and/or blood hemoglobin levels were estimated. No statistically significant correlation was found between these values.Part of this work has been carried out with the help of the "Fomento de la Investigacibn en la Universidad" of the Ministerio de Educacih Nacional.
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