ScienceAsia is a journal published bimonthly in printed and electronic versions by the Science Society of Thailand under Royal Patronage. The journal publishes original research papers that provide novel findings and important contribution to understanding of broad area in science and mathematics. Manuscripts may include scientifically useful data, observations or model predictions, and/or provide a new scientific concept or a new explanation of published results. Other material of scientific interest including review of topics that are hot issues for the Asian region are also welcome, provided that there is sufficient scientific merit. The journal will not accept articles which have been published or are being considered for publication by another journal, nor should papers being considered here be submitted to other journals. Manuscripts submitted must conform to the guidelines given in the Instructions for Authors (http://www.scienceasia.org/instruction_authors.php)