The aim of this research was to study the antibacterial activities of crude extract with hexane from the leaves stems corms and roots of Acrostichumaureum L. by disc diffusion method against the pathogens viz. Bacillus cereus TISTR687 Staphylococcus aureus TISTR1466 Escherichia coli TISTR780 and Salmonella typhimurium TISTR292. The results revealed that the leaves extracts showed antibacterial activity onall of fourtested pathogenic bacteria with the inhibition zone of 9.20 0.37 8.92 0.09 6.62 0.48 and7.82 0.56 mm.respectively. While the stems corms and roots extracts showed antibacterial activity ononly B. cereus with the inhibition zone of 8.02 0.25 8.51 0.21 and 10.87 0.13 mm. respectively. This preliminary screening results demonstrated the potential of the extracts from various parts of Acrostichumaureum L. to be used as antibacterial agent and to be further researched and developed into innovative pharmaceutical and cosmetic products.

The comparison of methodology from and -spectrometry methods has been made for freshwater sediment. The differences of precisions 18% and 15% were found for ? and -ray spectrometry respectively. Results from the analysis of certified reference materials (IAEA-326 327) showed good agreement with recommended values and data available in the literature. Thus an alternative methodology based on alpha/gamma activity ratio was developed and tested using different samples. The method is based on the determination of total -activity (46.53 keV peak associate with Pb-210) and the total -activity present in the aliquot. Differences between methods could be caused by different behaviors of Pb-210 and Po-210 (used for alpha measurement) in the freshwater sediment. In gamma spectrometry errors may arise when many gamma emitters are measured simultaneously and their activity peaks overlap. In alpha spectrometry chemical separation of Po-210 may result in analytical error due to incomplete sample dissolution. Pb-210 activities derived by alpha and gamma methods are shown to agree within counting error. The inherent compatibility of analytical results based on alpha or gamma techniques is established. Nevertheless the choice of an alternate method to determine the freshwater sediment criteria to time comfortable convenient and budget.

The purpose of this research was to analyze the satisfaction of students towards the academic service of Academic and Research Affair Faculty of Management Technology Rajamangala University of Technology Isan Surin Campus. The processes of this study were divided into three parts: 1.) the procedures of the academic services providing. 2.) The service of academic department officers/staffs. 3.) The facilities feature that classified into gender (sex) and education level (year) of the students. The populations used were 200 students among the first year to the fourth year students who studied in the academic year of 2011. The tool used consisted was the questionnaire and the statistic data were analyzed by frequency percentage average value mean standard deviation T-test and One-Way ANOVA. The findings were concluded as follows: 1.) The students of Management Technology Faculty Rajamangala University of Technology Isan Surin Campus who had the different in gender (sex) and education level (year) were satisfied the procedures of the academic services providing were in the moderate level. While the service of academic department officers/staffs were in high level and lastly the facilities features were also in high level. 2.) The students of Management Technology Faculty Rajamangala University of Technology Isan Surin Campus who had the different gender were satisfied the procedures of the academic services providing the service of academic department officers/staffs the facilities features in the level of indifferent significant. 3.) The students of Management Technology Faculty Rajamangala University of Technology Isan Surin Campus who had the different education level (year) were satisfied the procedures of the academic services providing the service of academic department officers/staffs the facilities features in the different statistical significant level at 0.05

The objectives of this research were to study about student’s quality of life level of the Faculty of Science and Fisheries Technology Rajamangala University of Technology Srivijaya Trang Campus and compare student’s quality of life level which each gets different personal factors. The research group is the 310 students who study in 1-4 years of the Faculty of Science and Fisheries Technology Rajamangala University of Technology Srivijaya Trang Campus. The research material was questionnaire. The Reliability value analyzing was 0.92. The results were as follows: 1. In whole student’s quality of life level of had got a good quality of life level such as life satisfaction self-concept and socioeconomic factors were good level while health and functioning was medium level. 2. Comparison about differences personal factors of student’s quality of life level found that different seniority and major influences to student’s quality of life.

The objectives of this research were to study the reduction of organic compounds by the biological action substance of the effluents from palm oil mil to produce singe cell protein. The wastewater taken from the third pond of the wastewater treatment system which was already used for biogas production was found to have pH 6.5. The organic matter like COD (3679 mg/L) Oil& grease (133 mg/L) as well as the total solids and the minerals were much lower than those of the decanter effluent. The reduction of organic compounds by using the biological action by Candida tropicalis TISTR 5146 5045 and C. lipolytica TISTR 5151 were studied. The results indicated that C. tropicalis TISTR 5146 which was cultivated in palm oil mill at initial pH 5.5 and diluted with water to the ratios of 1:5 at agitation on the shaker of 150 rpm at room temperature gave the highest yield of biomass of 2.52 g/L and COD reduction of 94.38 % after 3 days of cultivation. The optimal condition for C. tropicalis TISTR 5146 cultivation was that the ratio of palm oil mill effluent to diluted water was 1:5 containing 10 g/l glucose and 10 g/l yeast extract at initial medium pH 5.5 in the shaking flask of 150 rpm at room temperature. The highest biomass obtained was 12.53 g/L while the cell consisted of protein and fat for 43.12 % and 0.34 % respectively.