The purpose of this study was the design and development of a Computer Assisted Instruction program for a Principles of Biology course on the topic of cell division. The sample group was 175 students taken from the food and nutrition major studying for a bachelor’s degree in the second term of the first academic year (2011) from the Faculty of Technology and Nutrition Rajamangala University of Technology Phra Nakorn. Statistical analysis of the mean and standard deviation were preformed of the test’s satisfaction toward the Multimedia Computer Program along with T-test analysis of the test data to determine learning achievement before and after use of the Computer Assisted Instruction. The results found that learning achievement scores for the Multimedia Computer Program after Computer Assisted Instruction were significantly higher than before at the 0.05 level. The test’s satisfaction toward learning via the Multimedia Computer Program was also high.

. In this study examination of label information physical and microbiological qualities was performed in 30 clear-plastic and 3 opaque-plastic bottled drinking water products distributed in city municipality of Ubon Ratchathani. Results showed that 12 clear-plastic (36%) and 3 opaque-plastic (9%) bottled drinking water samples had no expiry date on the product labels which were discordant to the criteria for drinking water in sealed containers imposed by the Ministry of Public Health of Thailand no. 383 (2017). Odorless appearances of all drinking water samples were observed. Values of pH in 4 clear-plastic (12%) and 3 opaque-plastic (9%) bottled drinking water samples were in the ranges of 6.21±0.00–6.29±0.03 which were below the allowable limit (pH 6.5–8.5). All bottled drinking water products contained numbers of total coliform and fecal coliform bacteria less than 2 MPN/100 mL and were devoid of E. coli. Therefore based on the quality of clear-plastic and opaqueplastic bottled drinking water products distributed in city municipality of Ubon Ratchathani 1 5 samples (45%) did not meet standard for drinking water in sealed containers declared by the Ministry of Public Health of Thailand (1981 and 2017) owing to no expiry date labeled on the products and pH value below 6.5.

The aim of this study was to investigate the microbiological quality of milk-shaked drinks including Bacillus cereus Escherichia coli Salmonella spp. Staphylococcus aureus yeast and molds in unsealed containers sold in market fair roadside and stall around Mahasarakham university. The analytical results revealed that microbiological quality of 30 samples of milk-shaked drinks in unsealed containers that did not pass the criteria of department of medicine ministry of public health Thailand were 50 % of total samples. Bacteriological counts of Bacillus cereus Escherichia coli Salmonella spp. And Staphylococcus aureus of milk-based drinks that did not pass the criteria were 13.3 10 13.3 and 10% of total samples respectively. Yeasts and molds counts of milk-based drinks that did not pass the criteria were 3.3 and 30% of total samples respectively. Microbiological contamination of milk-shaked drinks was related to the hygiene of the shop and the supplier. It was found that the location of stall which high dust particles and animal carriers also contributed to the contamination of microorganisms. Moreover the hygiene of the supplier may cause the milk-shaked drinks to be contaminated with microorganisms.

In this research the design of plasmonics interference using micro PANDA ring resonator as the source of single photon and entangled photon generation from the four-wave mixing process was studied. The coincidence of photons from Hong Ou Mandel effect between a wave guide and a micro PANDA ring resonator layer was detected. The whispering gallery mode of interference at the central top inducing the plasmonics signals at the outer nano gold coating PANDA layer was used to analyze from micro particles. Its quality factor was found at 106 of order magnitude and became appropriately to apply this plasmonics interference to be biosensor.