among the food products, grains play an important role in the consumption patterns of people, especially in the developing countries. since iran's main source of public dietary energy comes directly from grains, investigating and identifying the determinants of import of these products can be an important step towards food security. most experimental studies consider import of grains as only a ...

This paper considers the principles of a functionalist perspective with regard to positive emotions. We discuss various ways that emotions have been studied historically and how these approaches bear on discussions function. then cover more recent attempts categorize make recommendations for future endeavors. Our aim is not pick promote an existing view but rather demarcate perspectives through...