As a channel of non-verbal communication, faces can give information such as mate attraction, intelligence, and aggressivity. Aggressivity is character to dominate, protect position, fight over resources. Several aggressive behaviours in humans are, for example, anger, hostility, physical aggression, verbal aggression. Previous studies western society showed that aggressivity could be perceived...

greenhouse structure has an important role in success of greenhouse production. this research was conducted to study problems related to vegetable greenhouse structure in khuzestan province for on year(2011-2012). for this purpose, 21 greenhouses were selected by simple randomized samplang and questionnaires were completed. the results revealed that the major problems in greenhouses vegetable p...