Thammasat International Journal of Science and Technology (TIJSAT) contains original research articles, review articles, and short communications. The objectives are to publicize and promote the research contributions and innovative works in the fields associated with science and technology. Areas covered include:1. Biological sciences such as biology, zoology, botany, genetics, agriculture, ecology.2. Engineering such as electrical engineering, chemical engineering, civil engineering, environmental engineering, computer engineering; and information technology.3. Health sciences such as medicine, dentistry, veterinary, pharmacy, physical therapy, nursing, public health.4. Physical sciences such as chemistry, physics, mathematics, statistics.The journal is published 4 issues per year No.1 January-March, No.2 April-June, No.3 July-September and No.4 October-December.Thammasat International Journal of Science and Technology is currently indexed in both national and international electronic/online databases, namely, Thai-Journal Citation Index (TCI) Tier 1, Thai Journals Online (ThaiJO), ASEAN Citation Index (ACI), Elektronische Zeitschriftenbibliothek (EZB).