Time and its concept, understanding and expressing is one of the significant subjects in the human thought. The way of theorizing about time, has caused different opinions about its quiddity. The artists in the Qajar dynasty had gotten newer experience in drawing than previous eras. Developments in various fields have affected to them. The artists in the face of phenomena such as time represent...

since the 1960s the age effects on learning both first and second language have been explored by many linguists and applied linguists (e.g lennerberg, 1967; schachter, 1996; long, 1990) and the existence of critical period for language acquisition was found to be a common ground of all these studies. in spite of some common findings, some issues about the impacts of age on acquiring a second or...

Due to rainfall and climatic conditions, Guilan province owns several bridges from past historical periods. The present study investigates the typology and recognition of factors affecting the formation of Safavid and Qajar historical bridges in Guilan province. The research seeks to answer the following questions; which factors have been effective in the formation of different types of Safavid...

Sassanid stone reliefs that were carved on the mountains are the main part of the artistic heritage of this ancient era, but the art of stone reliefs have worn by the rise of Islam and its spread through the country, then Qajar dynasty, especially Fath Ali Shah, has revived this art after 1200 years. There are some stone reliefs remained from Qajar era, that have significant similarities with S...