The research aimed to analyze and compare contents of accumulated residue of chlorpyrifos chromium lead and cadmium in five varieties of vegetables in Loei River Loei Province. Five varieties of vegetables such as Vegetable fern (Diplazium esculentum Limnocharis flava (L.)) Limnocharis flava (L.) Buch Lasia spinosa (L.) Thwaites swamp cabbge (Ipomoea aquatica Forsk) and water mimosa (Neptunia oleracea Lour.) were collected during winter summer and rainy seasons from Phu Luang Mueang Loei and Chiang Khan District. Chlorpyrifos was analyzed by high performance liquid chromatography (HPLC). The results showed that the highest chlorpyrifos contents were found in vegetables in winter and summer season in the amount of 0.04±0.00 mg/kg. Analysis of all three heavy metals were carried out dry ashing at 500C and acid digestion with nitric acid prior to analyzing by flame atomic absorption spectrophotometry (FAAS). The results showed that cadmium accumulation in the highest content among all metals in water mimosa (Neptunia oleracea Lour.) in summer season from Phu Luang District (1.83±0.01 mg/kg). The second highest metal content was lead which has found in swamp cabbge (Ipomoea aquatica Forsk) in summer from Mueang Loei District (1.40±0.08 mg/kg). chromium showed the lowest content in Limnocharis flava (L.) Buch in winter from Mueang Loei District (0.47±0.04 mg/kg). The contents of chlorpyrifos and heavy metals were not exceed the legal limits set by International Standard Food and Ministry of Republic Health No.98 of Thailand except Ipomoea aquatica Forsk which collected in summer that showed the lead content higher than the legal limits.

This paper presents the method to reduced electromagnetic interference from electronic drive for LED lamp to achieve the TIS standard No.1955-2551. According to standard it must have been tested for magnetic field compatibility that are included Magnetic Field Emission: ME Conducted Emission: CE and Coupling Decoupling Network: CDN. The 3 LED lamp which defined as Type A B and C were tested. Each lamps has 16 watt electric power and was different electromagnetic interference of electronic drive. After that the reduce electromagnetic interference circuit has been designed for low frequency. This circuit test was based on Conducted Emission test only. The integrated design was preferable to reduces electromagnetic interference for LED lamp drive device type A to the TIS. standard No. 1955-2551. That design circuit was been trialled in LED lamp drive device type B and C in order monitor efficiency of reduce electromagnetic Interference. The results showed that design circuit can reduce electromagnetic interference from LED lamp drive device type A and B to the standard. For LED lamp drive device types C the design circuit can reduce electromagnetic interference but it still has not achieve the standard.

The purposes of this study were to study 1) personal factors affecting Rajamangala University of Technology Phra Nakhon (RMUTP) personnel’s happiness at work 2) personal factors affecting the personne’s l work ethics and 3) relationship between the ‘s personnel happiness and ethical behavior at work. 303 samples were selected using the Taro Yamane method. A questionnaire was applied as the instrument used for data collection. Statistics used for social sciences included frequency percentage mean standard deviation t-test and one-way ANOVA. The study indicated that 1. Personal factors were highly related to RMUTP personnel’s happiness at work either in the individual aspect or in the overall. 2. Personal factors were highly related to RMUTP personnel’s work ethics behavior either in the overall or in the individual aspect. 3. Happiness at work was related to RMUTP personnel’s work ethics behavior and resulted in ethical behavior of the university personnel with an average of 65.6%.

The objectives of this thesis were to study 1) Eating knowledge 2) satisfaction in the Food Shops at Queen Sirikit National Institute of Child Health (QSNICH) 3) food consumption behavior 4) T Relationship of eating knowledge and food consumption behavior 5) the correlation between satisfaction in the Food Shops at QSNICH and food consumption behavior. The study was conducted with 315 staffs QSNICH who served in the Food shops at QSNICH. The research instruments used were the personal data questionnaire. Data analysis was presented in frequency average standard deviation and Pearson’s Product Moment Correlation Coefficient. Results indicated that average scores as calculated by mean percent for eating knowledge was shown at good level. Most of the staffs had medium level satisfaction of food shops and the food consumption behavior was shown at sometime level. In terms of the relation of eatting‘s knowledge and food consumption behavior there was no significant associations. In addition the correlation between satisfaction in food shops at QSNICH and food consumption behavior had no significant association. The suggestion for this research was to promot activity to change food consumption behavior to increased eatting healthy food.

The objective of the research aims to identify the relationship between the motivation factors of hospital entrepreneur and the implementation of environmental accounting. This study focuses on both internal and external factors in its organization. The internal factors display the support provided by the chief executive officer and the profession readiness of accountants and stakeholders. The external factors are government policy and law including a competitive factor. The study was the survey research testing 82 people in seven hospitals under the control and supervision of the Department of Medical services the Ministry of Public Health. The hospitals are located at Bangkok and Nonthaburi province in Thailand. The data were collected by questionnaire and were analyzed by statistical packages to determine descriptive statistics (e.g. percentages means and standard deviations) including a multiple regression analysis in order to predict the motivation factors of hospital entrepreneur to implementing environmental accounting. The findings of the data analysis presented that all of the predictor variables were statistically significant. It is more likely that both internal and external factors do not impact on the implementation of environmental accounting for hospitals.