The Journal of Economic Literature codes classification system (JEL) published by the American Association (AEA) is de facto standard for research literature in economics. JEL used to classify articles, dissertations, books, book reviews, and working papers EconLit, a database maintained AEA. Over time, it has evolved extended with over 850 subclasses. This paper reviews history development sys...

The Ashburner model for the hormonal control of polytene chromosome puffing has provided a strong foundation for understanding the basic mechanisms of steroid-regulated gene expression (Cold Spring Harbor Symp. Quant. Biol. 38 (1974) 655). According to this model, the steroid hormone 20-hydroxyecdysone (referred here as ecdysone) directly induces the expression of a small set of early regulator...

a medium scale structural macroeconometric model is constructed to investigate the effects of energy price liberalization on the main macroeconomic variables. the analysis is conducted under 3 different scenarios of increasing the price of energy sources to the level prevailed in the countries of the persian gulf region. these 3 scenarios are a sudden increase, a gradual increase within a 5 yea...

this study is intended to investigate the level of public-private cooperation in the process of agricultural development from the view point of potential investors and producers. to achieve this objective we used an adjusted jensen model as a conceptual framework for cooperation. in this process mutual responsibilities is provided to reveal different dimensions of strategic cooperation between ...