this paper tries to study the emergence and changes of mechanized industry in iran within qajar dynasty (mid-19th century) and the islamic revolution triumph (1978). it focuses on the governments role in delayed industrialization, and accordingly surveys the governments role in building institutions and commercial policy-making for industrialization. since governments nature and its role in eco...

the main goal of this paper is to study the economic study the economic structure of transportation sector in irans economy within the last three decades. comparative, static input-output analysis method has been used with the help of four tables related to 1973, 1986, 1991 and 2000. for this purpose, traditional backward and forward linkages indicator of structural analysis has been used in th...

viewpoints related to busines cycles fluctutions and their use in economic anticipation process have drawn the attention of various intellectual spectrum and economic schools. this has, in turn, caused the formation of a modern scientific area known as future study. according to the major aims of this field of this field of knowledge, business cycles future changes and the variables affecting t...

The algal excretion product geranylacetone was proved to be an effective and novel inhibitor of carotene synthesis in Synechoccus 6911. The application of geranylacetone resulted in an ac­ cumulation of phytofluene, indicating an inhibition of the conversion of this compound into fcarotene. The cts-isomer of geranylacetone was as effective as the natural irans-isomer. The chloro­ phyll synthesi...