Thanks Aka,<br />&nbsp; Thanks a lot for your attentive and careful editting. Sorry to come back to you late. I was busy with submitting my paper on a deadline. Thanks also for your encouraging and kind words which I will always keep them in my mind. I also envy your job sitting in a place to help people like me, non-native writers, to spread our new thoughts. Without people like you, the world would be confined in some limitted&nbsp;ways of thinkings, the ways belonging to whom that can only write better and not necessarily think better.&nbsp;<br />Best wishes,<br />I will surely send my other papers to you<br />Seyyed&nbsp;