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It is thought that psychological factors may play an important part in asthma , although this could not be determined in a previous review of psychological interventions in adults with asthma . However , individual accountability does play an important part in the management strategy . The midwife has an important task in health counselling and education , not only for the woman , but also within the family and the community . Smart cards are an important technology for enabling client-side digital signatures , since the cards can store users ' private signing keys in a secure , portable form factor . Calligraphy plays an important part in the art of the East ; scrolls decorated with an admired calligraphy are hung on walls . It is evident , therefore , that although the effect of the weaker stimulus when tested singly is invisible , it nevertheless plays an important part in the stimulatory compound [ experiments by Dr. Palladin ] . Wireless LAN , as an important player in future wireless data networks , has been widely investigated to incorporate with the networks and other broadband wireless services such as WiMax . Such a circumstance would have given rise to an important crossentry in the system of campaign book-keeping . Rays move at an incredible speed , timing is an important part in the components in the detectors used to measure them .