the goal of this research is the determining of planting date and providing agricultural calendar for corn in kermanshah province using climatic elements of temperature and rain fall. so, at first, long term  climatic statistics are collected from 2001 to 2011  and then  considered to temperature and rain fall parameters like  absolute maximum and minimum  in region during growth period, planti...

hippodamia variegata is an efficient and most abundant predatory coccinellids in many countries. understanding the ability of long-term low temperature survival in beneficial insects can be used to make better predictions about subsequent abundance and hence the biological control potential in the next spring and summer. so in this study, effects of long-term temperatures were investigated on m...

“realism” is a critical term which in its specific sense refers to a literary movement in mid-nineteenth century and in its general sense designates a style of writing that has continued into the contemporary period. the school principal, a short novel by jalal ale-ahmad, is a characteristic example of realism in its general sense in which the author attempts to represent people and social cond...