This article is focused on ageing and the rapid ageing population growth, from future health care costs prospectus. It reviews ageing population statistics in several courtiers as well as Iran, to illustrate the significance of the ageing population growth in the next decades. Nevertheless, the health care costs for elderly people are described and the considerable differences between health ca...

126 abstract: in this research we studied the effects of cyclic hydration and dehydration of cysts of artemia urmiana and artemia parthenogenetica on the hatching percentage, survival and growth. the experiment was carried out in 3 treatments (1-3 hydration/dehydration cycles) with 3 replicates for each treatment. later effects of cold preservation at -20°c during three time periods were ...