This research aims to study attitudes quality of life and human relationships affecting the performance of professional nurses in large private hospitals in Bangkok. The sample group consisted of 400 professional nurses in large private hospitals in Bangkok. Data were collected using questionnaires. The statistics using were descriptive statistics like frequency percentage mean standard deviation and inferential statistics. The results showed that most respondents were female aged between 31 – 40 years with a bachelors degree and an average monthly income between 30001 - 40000 baht. The overall work attitude factor is at a very agreeable level. The mean value was 3.81. The overall Quality of life at work factor was at high level of agreement. The mean was 3.73 and overall human relations at work factor was at a high level ofagreement with an average of 3.88. Work attitude and human relations at work factors had a statistically significant effect on the performance of professional nurses in large private hospitals in Bangkok at the 0.05 level.

The research aimed to study parameters affecting the stress intensity and stress distribution as well as the deformation of run-flat tires for passenger cars using the Finite element method. Both experimental methods and finite element methodologies were employed in the research process. The results were obtained by comparing the strain values from the two methods to demonstrate the consistency of both methods. The differences in their strain values were shown in the range of 10-16% confirming the analyzing capability in this problem through the Finite element method. At the pre-processing step both procedures and methods were proven with SolidWorks simulation program together with experimentation. These consequences were incorporated to assist the design of run-flat tires. Parameters affecting the stress intensity and stress distribution were evaluated to understand the effects on deformation of the new designed run-flat tires. The reverse engineering process was thus applied in the research process by scanning with FARO P06-05 and creating solid modeling 3D models with Geomagic program for SolidWorks. These could assist in designing the reverse- engineered tire pan. Three components were additionally designed to support the ease in assembling or removing run flat tires from the pan. Run flat tires were finally designed for passenger cars typically the most common small cars. The weight of this car was limited at not more than 1800 kg and the thickness of the wheel pan was 17 inches. The analysis information assumed that the vehicles weight was distributed equally throughout all 4 wheels. The material used to make the run flat tires was a composite tire type that could withstand the pressure occurring from the weight of a passenger car. The results of the analysis demonstrated that the maximum stress on the run flat especially at the position where the run flat surface was in contact with the road was 30-45 MPa which depends on the location of contact with the road. Thus it affected the stress distribution on the wheel pan. The parameters obtained from the study affecting the stress distribution and deformation were accounted to be such types of materials made for run flat tires cross-sectional area and width of run flat tires.

The purposes of this research were 1) to study the personal student factors of a vocational certificate type of Home Economics Phetchaburi Vocational College 2) to study the importance and the decision to study for a vocational certificate type of Home Economics Phetchaburi Vocational College 3) to study relationship between the personal factors and the importance of the decision to study for a vocational certificate type of Home Economics Phetchaburi Vocational College. The sample used were 148 students who are studying in vocational certificate type of Home Economics Phetchaburi Vocational College. The instrument used in this thesis was questionnaire. The statistics based on the data analysis include percentage frequency values average standard deviation and Chi Square. Analysis of statistical data by a computer program. The results showed that 1) the personal student factors of a vocational certificate type of Home Economics Phetchaburi Vocational College were no effect for the decision to study in general. 2) the learners pay 7 sides attention to the study for a vocational certificate type of Home Economics Phetchaburi Vocational College in general were rated at high level. When considering each side it was found that every side was rated at high level. Shortage average form most to least is career the college environment learner development activities teachers curriculum and media materials and equipment that support teaching. 3) the relationship between respondents’ general information and decision to study for a vocational certificate type of Home Economics Phetchaburi Vocational College found that gender related with media materials and equipment that support teaching age related with college environment and field of study related with image of college is statistically significant at the 0.05 level. The relationship of grade point average (GPA) and revenue of learners per month didn’t relate 7 sides with the decision to study for a vocational certificate type of Home Economics Phetchaburi Vocational College is statistically significant at the 0.05 level.

The purposes of this research were 1) to study personal factors and family factors of High school students at Prakhanongpittayalai School. 2 ) To study food consumption patterns of high school students at Phrakhanongpittayalai School according to the new normal. 3) Comparison of food consumption patterns according to the new normal of high school students at Phrakhanongpittayalai School classified by personal factors. 4) Comparison of food consumption patterns according to the new normal of high school students at Phrakhanongpittayalai School classified by family factors. The sample was obtained by random sampling of 300 students from high school students at Phrakhanongpittayalai School and using online questionnaires as a research tool. The data were analyzed by using frequency percentage mean standard deviation t-test and one-way analysis of variance. The results revealed that 1) most of the samples are female age 18 years old studying in Mathayom 6 earning between 100- 150 baht per day. The housing types are townhouse apartment or flat. The number of family members is more than 3 people. The education level of their parents is lower than a Bachelors degree and work as employees with an average family income of 15000 – 30000 baht per month. 2 ) Food consumption patterns of high school students at Prakanongpittayalai School according to the new normal found that the overall level was at a high level. When considering each aspect it was found that the aspect with the highest mean was the perception of food consumption according to the new normal followed by the aspect of food consumption characteristics of the family according to the new normal and the least aspect was the food type selection according to the new normal. 3) Comparing dietary patterns of high school students at Prakanongpittayalai School according to the new normal classified by personal factors it was found that gender age educational level parental income per day and housing characteristics were significantly differed in opinions on consumption patterns at the . 05 level. 4) Comparison of dietary patterns according to the new normal classified by family factors found that the occupations of parents and the average family income per month haddifferent effects on the new normal dietary patterns of high school students at Phrakhanongppittayalai School. There was a statistically significant difference at the .05 level except for the number of family members and their parents’ education were not statistically different at the .05 level.

This study was conducted to determine the effects of plant growth regulators on in vitro propagated plantlets and microrhizome inductions of Curcuma comosa Roxb. for an efficient development of plant regeneration. In vitro sprouted shoots (2 cm length) of C. comosa were incised in longitudinal section and subcultured on MS media supplemented with 3 mg/L BA for shoot multiplication and plant regeneration. Subsequently the regenerated plants were transferred to MS medium with various concentrations of plant growth regulators; BA (1 3 5 mg/L) kinetin (1 3 5 mg/L) and TDZ (0.5 1 1.5 mg/L). The result showed that MS medium supplemented with 3 mg/L BA was the most effective in shoot induction with the significantly maximum average number of 2.11 shoot buds per responding explant. Moreover MS medium supplemented with 1 mg/L BA produced the longest average of shoot bud explants (12.99 cm) while the basal MS medium induced the longest average of root multiplication (6.63 cm). Furthermore microrhizome induction was produced under in vitro conditions derived young shoot buds upon transfer to MS medium containing various combinations of 1 3 and 5 mg/L BA and 30 60 and 90 g/L sucrose concentrations. The optimum combination in the induction of significantly highest average length of both stem (18.32 cm) and root (7.52 cm) multiplication was obtained on MS basal medium supplemented with 1 mg/L BA and 30 g/L sucrose for 4 weeks. Although microrhizome formation was not produced by the different amount of BA and sucrose in induction medium starch accumulation was found at the base of the stem explants cultured on MS medium containing 60 and 90 g/L sucrose concentrations. Additionally in vitro propagated C. comosa plantlets through microrhizome induction were grown under greenhouse conditions for 4 weeks and further developed into normal plants resulting in successfully high survival rates of 66 – 100% in the cultivated C. comosa.