The transitional epithelium lining the ducts of various glands such as salivary and mammary glands, and organs such as liver, pancreas, kidney and lung must bear a permeability barrier as they are in direct contact with the hostile environment in the lumen. The barrier function of pancreatic ductal epithelium is essential for preventing the back flux of proteases, lipases and DNAases from the p...

1. introduction persian folktales and literary stories are full of love relationships which add to the structural richness of the story. in most of these stories, love commences on part of the male character. however, there are instances in which women or girls initiate love. these kinds of love create adventures which are admirable in themselves. the commencement of love and the way a lover es...