Over the last few years, the share of powder coatings used for the protection of aluminium extrusions and claddings for architectural uses in competition with conventional…
Over the last few years, the share of powder coatings used for the protection of aluminium extrusions and claddings for architectural uses in competition with conventional liquid paints and as an alternative to anodising has sharply increased. In 1987, about 47 million m2 or 135 thousand tons of aluminium used in outdoor architecture have been powder coated in France, Germany, Italy and United Kingdom. This paper gives a thorough description of the latest developments of the polyester powder coating systems used for aluminium extrusions and claddings in Europe, underlining the criteria of the choice of the weathering resistant powders, the importance of metal pretreatment and of the coating process itself as well as of the quality control in this industry. A comparison with competitive coating technologies is also given.
This article aims to evaluate the effect of organic coffee certification on coca cultivation, based on a survey of 496 members from coffee cooperatives located in the…
This article aims to evaluate the effect of organic coffee certification on coca cultivation, based on a survey of 496 members from coffee cooperatives located in the upper Tambopata valley in Peru. Coca is a bush from the leaves of which cocaine is extracted.
The results were estimated using the propensity score matching methodology.
The results suggest that participation in organic coffee certification statistically significantly reduces the scale of coca cultivation.
This paper analyses a unique primary data set from a coca-growing region in Peru. The value of this paper is that the results suggest that under specific conditions, such as reasonable high and stable coffee prices, organic coffee certification can be an effective element of drug control policy in Latin America.