Hi, Ali:<br /><br /><br />I have uploaded your edited document, and I hope that you find the suggestions helpful. If you have any questions, please send a message to me via Editor World.<br /><br />I added a few references at the end, just to save you time. If they're incorrect, just delete them.<br /><br />This is shaping up to be an excellent paper. I learn&nbsp;something new (and important) from you every time<br /><br /><br />Best wishes, George (TypeRighter)<br /><br />I am usually available for editing between 6:00 am and 10:30 pm (EST). If my status says 'unavailable', you can still reach me via Editor World.<br /><br />