The research project on The potential of Siphonodon celastrineus Griff traditional medicinal plants of Thailand for treatment from local wisdom knowledge lead to the development of sustainable use with the objective of studying the botanical phytochemical and biological activity of the Siphonodon celastrineus to create confidence in the use of S. celastrineus in herbal medicine by using the bark leaves and fruit of the S. celastrineus to extract with 3 types of solvents. Each of hexane ethyl acetate and methanol respectively from low to high polarity. All nine extracts will be extracted. Preliminary examinations for phytochemistry Antioxidant activity by DPPH radical scavenging assay and quantitative determination of phenolic compounds by Folin-Ciocalteu method and antimicrobial activity were tested. The research found that. 1. The extract of the results of the methanol layer of the S.celastrineus shows a reduction in the amount of 11-diphenol-2-picrylhydrazyl (DPPH) had the highest EC50 equal to 31 mg/ml. The amount of phenol compounds found that the extracts from the methanol extract of S. celastrineus contain the amount of phenol. The highest concentration of 95.23 mg GAE / g dw 2. Extract from the bark of the S. celastrineus with methanol showed the best inhibition of the growth of Vibrio paraheamolyticus with the MIC value of 15.60 mg/ml. The extracts of the S. celastrineus leaf extracts with hexane showed the best inhibition of the growth of Vibrio cholerae with the MIC value equal to 31.25 mg/ml and leaf extracts with ethyl acetate showed the best inhibitory effect on the growth of Vibrio cholerae with a MIC value of 31.25 mg/ml and the extract of the fruit with ethyl acetate to inhibit the growth of Vibrio paraheamolyticus most with MIC equal to 15.60 mg/ml.

Aluminium was used in many industrial applications due to good properties such as ductile high corrosion resistant and high electrical conductivity. Since wear resistance of aluminium was very poor so that it was a limitation of using this material in several conditions. In this research aluminium was improved the wear resistance properties by using anodizing process and adding some titanium dioxide particles on the surface. The effect of anodizing process duration on the wear resistence property was studied. It was found that the process duration and amount of titanium dioxide play the important role on improvement of tribological properties of aluminium.

Aluminum is a lightweight material which are popularly used in various parts of the industry. However there are some limitations on the tribological properties such as abrasive wear and friction when it was compared to other metals. Tribological properties of aluminium was improved with anodizing process and silicon dioxide supplement. the effect of time on surface structure and friction coefficient were studied with with scanning electron microscope and sliding wear tester. It was found that friction coefficient of aluminium was decreased after improvement process was applied.

At present most human-related products contain a mixture of chemicals for inhibiting microorganisms polluting the environments and harming the users. The purpose of this research was to develop a product using banana and papaya peel extracts as replacers for the chemicals inhibiting microorganisms in heel cream. By extracting raw bananas and papaya peels with coconut oil the studying the efficacy of inhibition on E. coli S. aureus Aspergillus sp. and S. cerevisiae with Disk Diffusion method at the protein concentration were performed as follows: 25 50 100 and 150 micrograms per milliliter. The observation of clear zone to observer clear zone of inhibition. and the Turbidity method using light absorption at a length of 600 nm was also were shown the corresponding results of microbial inhibition. observed and showed the consistent results. Especially the papaya extract having the protein concentration at least of 150 micrograms per milliliter could inhibit all 4 microbe species but could not inhibit S. cerevisiae that indicated a good trend of no harm on human. When mixing the extract in the heel cream it was found that Heel cream containing banana extract papaya and both mixtures displayed the density of 0.9674 0.9103 and 0.8057 gram per cubic meter respectively. They could be stored at room temperature for more than 45 days and still maintained the properties of microbial inhibition by up to 80 percentages. When studying the satisfaction of consumers collected randomly from teenagers to elders at both sexes of 40 people more than 80 percentages of the customers were satisfied with the heel cream from all extracts. These all creams could make the feet soft and moisturized within 1 week. More suggestions were to improve the smell of heel cream products to be suitable for all age of consumers. Therefore this research could be concluded that banana and papaya peel extracts inhibiting microorganisms could be used as a heel cream for further continuously developing at the industrial level.

This study was aimed to explore effects of internal auditors’ qualifications work performance and ethics on sustainable survival of listed companies in the Stock Exchange of Thailand. 202 Internal auditors of listed companies in the Stock Exchange of Thailand were asked to respond to the questionnaire used as a research tool. The statistics used in the data analysis were frequency percentage mean standard deviation multiple correlation analysis and multiple regression analysis. The results of the study showed that in the overall the internal auditors of listed This study was aimed to explore effects of internal auditors’ qualifications work performance and ethics on sustainable survival of listed companies in the Stock Exchange of Thailand. 202 Internal auditors of listed companies in the Stock Exchange of Thailand were asked to respond to the questionnaire used as a research tool. The statistics used in the data analysis were frequency percentage mean standard deviation multiple correlation analysis and multiple regression analysis. The results of the study showed that in the overall the internal auditors of listed This study was aimed to explore effects of internal auditors’ qualifications work performance and ethics on sustainable survival of listed companies in the Stock Exchange of Thailand. 202 Internal auditors of listed companies in the Stock Exchange of Thailand were asked to respond to the questionnaire used as a research tool. The statistics used in the data analysis were frequency percentage mean standard deviation multiple correlation analysis and multiple regression analysis. The results of the study showed that in the overall the internal auditors of listed companies in the Stock Exchange of Thailand were in highest level in terms of opinions concerning internal auditors’ qualifications work performance and ethics on sustainable survival of listed companies in the Stock Exchange of Thailand. Regarding each aspect of the opinions the overall and individual opinions on the sustainable survival of listed companies in the Stock Exchange of Thailand were expressed at the highest level including the achievement of organizational goals related parties’ acceptance and trust and competitive advantage. Based on the relationship analysis and the impact it was found that 1 ) the qualifications of the internal auditor had a positive relationship and impact on the overall sustainable survival of listed companies in the Stock Exchange of Thailand and 2) the work performance of internal auditors had a positive relationship and impact on the overall sustainable survival of listed companies in the Stock Exchange of Thailand. In summary the qualifications and performance of internal auditors were positively related and had an impact on the sustainable survival of listed companies in the Stock Exchange of Thailand. Therefore companies should focus on internal auditors’ qualifications and work performance to make the organization more competitively advantageous and more accepted by those who got involved and able to achieve the goals which can enable the organization to succeed and survive sustainably.