Transport, active efficiency

Iron crosses the luminal membrane of the intestinal mucosal cell by two mechanisms active transport of ferrous iron and absorption of iron complexed with heme (Figure 33-1). The divalent metal transporter, DMT1, efficiently transports ferrous iron across the luminal membrane of the intestinal enterocyte. The rate of iron uptake is regulated by mucosal cell iron stores such that more iron is transported when stores are low. Together with iron split from absorbed heme, the newly absorbed iron can be actively transported into the blood across the basolateral membrane by a transporter known... 

With the worldwide emergence of financial markets and competition becoming more and more intense, companies around the globe are continuously urged to become more efficient. This striving for increased efficiency and reduced production costs has several implications. Extensive transportation activities, low prices and high consumption rates, mass layoffs or critical working conditions in various industry sectors can be considered problematic effects, while on the other hand public welfare seems to increase continuously. 

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