The objectives of this research were to 1 ) study the personal factors of food handlers in the canteen of the Ministry of Public Health Nonthaburi Province in the epidemic situation of coronavirus disease 2019. 2) Study the operations according to the food sanitation standards of food handlers. 3) Study the factors related to the performance of food handlers according to food sanitation standards. 4) Guidelines for solving problems in the work of food handlers according to food sanitation standards which the research area is in the canteen of the Ministry of Public Health Nonthaburi Province in the situation of the epidemic of coronavirus disease 2019. The research used a mixed method research consisting of a quantitative research using a sample of100 food handlers per restaurant and a qualitative research by interviewing 3 groups of food handlers. The statistics used in the data analysis were: frequency percentage mean chi-square and Pearson correlation. The results of the research showed that 1) the personal factors of the majority of food handlers 68.00 percent are female 37.00 percent aged between 41 - 50 years36.00 percent graduated from high school 42.00 percent with average monthly income between 10000 - 20000 baht 97.00 percent are Buddhists and most 27 percent are food handlers from rice and curry shops. 2) The food sanitation practices of food handlers in the coronavirus disease 2019 epidemic situation found that 65.00 percent of the workers performed according to sanitary principles at a very good level. 3)Factors related to the performance in accordance with food sanitation standards of food handlers in the epidemic situation of coronavirus disease 2019. The results of the study revealed that as for the personal factors of the restaurant type the leading factories the general knowledge of the coronavirus disease 2019 epidemic situation and knowledge of food sanitation in the epidemic situation of coronavirus disease 2019with contributing factors including the support of equipment to clean or prevent coronavirus disease 2019 from government agencies. Food handlers agencies courage participation in sanitation practices. They have also received training or advice from staff on how to behave in the midst of the coronavirus disease 2019 outbreak there was a statistically significant correlation at the .05 level. As for personal factors in terms of gender age education income and religion there are contributing factors such as the agency of food handlers campaigning or announcing measures to prevent the spread of the coronavirus disease 2019 and had been trained in food sanitation. There are additional factors such as having received food sanitation assessment during the coronavirus disease 2019 epidemic situation received a certificate for clean and safe restaurants to prevent COVIC-19 and 4) guidelines for solving problems in working in accordance with the rules of food sanitation standards of food handlers in the canteen of the Ministry of Public Health Nonthaburi Province in the situation of the coronavirus disease 2019 epidemic found that workshop sanitation training should be organized performance and personal hygiene assessments should be carried out. For public relations work there should be more communication channels additional measures on the part of service users and cleanliness including support for protective and cleaning equipment.

The research is aimed to 1) study the level and priority of the factors affecting the delay of construction projects and 2) provide suggestions in relation to the prevention of such delay. The sample is 520 people who were working for different construction projects. They were project managers project engineers field engineers and foremen. The data were collected by using online questionnaires and analyzed to find out mean standard deviation (SD) frequency correlation coefficient and confirmatory factor analysis. The findings reveal two significant aspects. First those who were working in the construction projects concerned about the factors affecting the delay of the projects at high level. Respectively the factors related to design resource external factors and others were taken into consideration. The factor regarding to work performance is regarded affecting the project delay at the highest level. Other factors i.e. the design external factors and others and resource have the affects at the lower level. Second the work-related factors can help prevent the project delay. In other words the construction plan and methods as well as the project management should be well-implemented in accordance with the design. The construction site should be on inspection considering its drawing. Regarding the external factors and others the public voices of those living around the construction site should be taken into consideration. Furthermore the effective use of the resources can be carried out by sufficiently preparing all materials tools and equipment for constructing any project effectively as a consequence.

This research aims to study the level of fundamental factors in the composition of teamwork the training and team system performance factors of Thai go chess sports and the factors affecting the efficiency of teamwork of Thai go chess. It was a quantitative method doing a survey research. The sample group consisted of 286 members from the Thai go chess Association of Thailand. The research study tool was a questionnaire. The statistics used were frequency percentage mean standard deviation and Multiple Regression Analysis. The result of the study showed that 1) factors in the composition of teamwork are like team leader team member and teamwork were at the highest level. 2) Training factors including planning implementation and evaluation were very high and the issue at the highes level was the assessment of necessity. 3) The efficiency of the teamwork of Thai go chess highly depends on creativity and continuous improvement at the highest level and high-level issues are communication cooperation and coordination. 4) The essential factors in the composition of teamwork affecting efficiency teamwork of Thai go chess including team members and operating systems are at a statistically significant level of 0.01 5) Training factors that significantly affect the efficiency of teamwork of Thai go chess include assessment planning operation and evaluation at a statistically significant level of 0.01

The purposes of this research were 1) study the level of perceived usefulness perceived ease of use attitude towards social media and using social media of the elderly people in Bangkok 2) compare the use of social media for the elderly people classified by personal factors and 3) analyze the factors related to the use of social media for the elderly people in Bangkok. The quantitative approaches were applied by using questionnaire for data collection. The research samples were 320 elderly people in Bangkok. Descriptive and inference statistics were used; arithmetic mean standard deviation t-test One-Way ANOVA and Pearson correlation coefficient. The results were found that the results were found that the level of perceived usefulness perceived ease of use in social media were at a medium level (𝑥𝑥̅= 3.48 𝑥𝑥̅= 2.95). The elderlys attitude towards social media and using social media were at a high level (𝑥𝑥̅= 3.65 𝑥𝑥̅= 3.54). The hypothesis test revealed that: 1) the differences of age educational level and average monthly income affect the social media use of the elderly people differently was significant. 2) The perceived usefulness perceived ease of use and attitude towards social media were significant positively related to using social media of the elderly people in Bangkok.

This research suggests an add-on working compatibly with Google Forms to construct multiple-choice questions (MCQs). This add-on comprises two main components including software for constructing MCQs and a data storage for collecting data used to compose MCQs. I demonstrated effectiveness of the add-on by applying it in the context of repetition online learning in which students could learn relearn and take an exam of which MCQs generated by the add-on. At the last step of this research I suggest using a sentiment analysis method – based on natural language processing and machine learning to find environmental factors and teaching strategies suitable for the repetition online learning.