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 purposes of this research were 1) to study the purchasing behavior of readyto- drink coconut juice. 2) To study the marketing factors of ready-to-drink coconut juice of consumers. 3) To study the relationship between personal factors and behavior in purchasing ready-to-drink coconut juice and 4) to study the relationship between marketing factors and purchasing behavior of ready-to-drink coconut juice. This was a quantitative research using questionnaires as a tool to collect data from a sample of 400 people without gender who are 20 years of age or older and live in Bangkok. The statistics used in the data analysis consisted of percentage mean standard deviation and correlation was determined by chi-square statistical test. The results showed that 1) most consumers behaviors had a reason to choose ready-to-drink coconut juice as a healthy drink with a purchase frequency of 1-2 times per week. The amount of purchase per time is at 1 bottle / box / bag which the purchase cost per time is 51- 100 baht and most of them choose to buy products from convenience stores. 2) The overall marketing factors in purchasing ready-to-drink coconut juice of the sample group were at the highest level. When considering the factors by aspect they were found that almost all aspects had the highest level of opinion in terms of price products and distribution channels respectively. Except for marketing promotion it was found that the sample group had a high level of opinion. 3) The relationship between personal factors and behavior in purchasing ready-to-drink coconut juice found that gender was related to the purchase frequency and the cost of each purchase. The education level was related to the reason for the purchase purchase frequency and cost of each purchase. Age occupation and average monthly income were related to all aspects of purchasing behavior which were the reason for purchase frequency of purchase location of purchase quantity of each purchase and cost of each purchase were found to be (P ≤ 0.01) and 4) the relationship between marketing factors and purchasing behavior of ready-to-drink coconut juice found that the overall marketing factors were related to behavior in all aspects which were the reason for purchasing purchase frequency purchase location quantity of each purchase and each purchase cost were found to be statistically (P ≤ 0.05)

The purposes of this research were to 1 ) study personal factors of food consumption among supportive medical personnel in Bangkok during the coronavirus disease 2019 (COVID-19) outbreak situation. 2) Study the perception of information about the Coronavirus Disease 2019 ( COVID- 19) vaccine among supportive medical personnel in Bangkok during the coronavirus disease 2019 ( COVID- 19) outbreak situation. 3) Study the new normal food consumption of supportive medical personnel in Bangkok during the coronavirus disease 2019 ( COVID- 19) outbreak situation. 4) Compare the level of importance for the new normal food consumption approach among supportive medical personnel in Bangkok during the coronavirus disease 2019 ( COVID- 19) outbreak situation classified by personal factors and 5) comparison of importance for new normal of food consumption among supportive medical personnel in Bangkok during the coronavirus disease 2019 (COVID-19) outbreak situation classified by the awareness of information on vaccines for the prevention of coronavirus disease 2019 (COVID-19). The sample consisted of 400 supportive medical personnel in Bangkok by multistage sampling. The research tool was a questionnaire. The statistics used in the data analysis were frequency percentage mean standard deviation t- test and one-way ANOVA. The results of the study showed that 1) the personal factors of the supportive medical personnel are female aged less than 31 years single status educational status at the bachelors degree level. The sample group works in the position of administrative staff and has an average monthly income of 10001 - 200 00 baht. 2) Supportive medical personnel gave importance to the awareness of the coronavirus disease 2019 (COVID-19) vaccine the overall was at a high level. 3) Supportive medical personnel focused on the new normal food consumption the overall opinion was at a high level. 4) Supportive medical personnel who have positions in the main medical support and have different average monthly incomes gave different importance to the new normal of consumption by statistically significant at the .05 level. 5) Supportive medical personnel who have different perceptions of the coronavirus disease 2019 (COVID-19) vaccine giving different importance to the new normal food consumption; and it was statistically significant at the .05 level.

The objectives of this research were to 1) study attitudes and consumption behavior of clean food for health 2) compare personal factors with consumption behavior 3) compare personal factors with consumption attitudes and 4) study attitudes affecting consumption behavior. The sample group was the population of Bangkok Province. Used in the study: 740 people. The questionnaire was used as a research tool. The data were analyzed by frequency percentage mean standard deviation. T-value test Analysis of one-way ANOVA and multiple regression analysis. The research results were found that: attitudes towards the consumption of clean food for health during the Covid-19 epidemic situation was at a high level. Clean food for health consumption behavior during the Covid-19 epidemic situation was at a high level.Individual factors including gender education and status had different attitudes towards healthy food consumption. During the Covid-19 epidemic situation the difference was statistically significant at the .05 level Individual factors including gender education income occupation and status had different healthy clean food consumption behaviors during the Covid-19 epidemic with statistical significance at the .05 level. Attitudes had a statistically significant effect on healthy food consumption during the Covid-19 epidemic at .05 level.

This independent study to the teamwork performance that affects the efficiency of government teachers and education personnel affiliated with the schools under the office of the primary education in Bangkok area. The objectives are 1) to study personal factors of education personnel that affect teamwork performance that affect the efficiency of government teachers and education personnel affiliated with schools under the office of the primary education in Bangkok area. Furthermore 2) to study the team composition that affects the work performance of teachers and education personnel affiliated to schools under the office of the primary education in Bangkok area. By using questionnaires designed to teachers and education personnel from the office of the primary education in Bangkok area for 334 samplings using the Taro Yamanae formula. Testing was done in descriptive statistics using frequency percentage mean and standard deviation while hypothesis testing was t-test F-test (ANOVA) and double test by method Least Significant Difference (LSD) and Pearson Product Moment Correlation Coefficient. The result of the study found that most responders were female aged between 21-30 years old working in middle-sized schools and having a bachelors degree. Most had an income between 15001-20000 Baht and most of them had been government teachers in operating positions for 5-10 years as civil servant and the study found team composition factors such as environment composition and appearance the feature design and process affected the teams performance at a high level. The reason was trust between education personnel team members. There also was a high degree of satisfaction with the working environment and the excellent collaboration between team members. Team members were able to resolve obstacles together effectively. There was good communication between members and the members had no conflict with each other’s. However the education personnel should have a positive attitude to work with other people and alone. Negative thinking cause no bias towards others and decrease performance. The results of the hypothesis testing indicated that sex age school size income position level different occupations of government teachers and education personnel could not differently affect teamwork performance as could not different for education job titles and working ages the difference will affect performance of the team composition factors. The factors were statistically significant at the 0.05 level and the team composition factor. There also was a correlation in the same direction with the efficiency of teamwork of government teachers and education personnel. It was statistically significant at the 0.05 level.