For better understanding of conformational stability of the dipeptide model HCO—Gly—L—Leu—NH2,ab initio and DFT computations at HF/6-31G(4 6-311++G(d,p) and B3LYP/6-31G(d) levels oftheory were carried out. Geometry optimization of the dipeptide within the leucine (Leu) side chainangles (x2 ,x2) resulted in three stable conformations as followings: anti-anti, the most stable one,(Xi = 180°, x2 =...

Abstract This paper sketches a model of product differentiation according to the hedonic hypothesis that is based on the theory of consumer behavior of Lancaster (1971). Lancaster suggested that utility is derived from the characteristics of the good and not the good itself. Thus, from the perception of the consumer, every characteristic has a price. This is the hedonic (or implicit) price. We ...

Zoning the pollution of a river may be the first or even the most important step in water quality management. In order to resolve its pollution, fuzzy clustering analysis may be used whenever a composite classification of water quality incorporates mutiple parameters In such cases, the technique may be used as a complement or an alternative to comprehensive assessment. In fuzzy clustering ...

Zoning the pollution of a river may be the first or even the most important step in water quality management. In order to resolve its pollution, fuzzy clustering analysis may be used whenever a composite classification of water quality incorporates mutiple parameters&#10 &#10In such cases, the technique may be used as a complement or an alternative to comprehensive assessment. In fuzzy cluster...

We consider a broad class of intertemporal economic problems and characterize the short-run long-run responses demand for good to permanent increase in its market price. Depending on interplay between self-productivity time discounting, we show that dynamic substitution effects can generate price elasticities opposite signs short run long run. (JEL D11, D15, H20, J22, J24)