• Journal of the Korean Data and Information Science Society
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• v.26 no.2
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• pp.387-397
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• 2015

In this paper, the determinants of the number of job changes in the SMEs (small and medium enterprises) youth-intern project is analysed, utilizing SMEs youth-intern DB and employment insurance DB. Since the number of job changes are count data which take integer values other than negative values, general linear regression analysis becomes inappropriate. Therefore, four models such as Poisson regression model, zero inflated Poisson regression model, negative binomial regression model and zero inflated negative binomial regression model are tried to fit count data. A zero inflated negative binomial regression model is selected to be the best model. Major results are the followings. First, the number of job changes is shown to be significantly smaller in the treatment group than in the control group. Second, the number of job changes turns out to be significantly smaller in the young-age group than in the old-age group. Third, it is also shown that the number of job changes of man is significantly greater than that of woman. Lastly, the number of job changes in the bigger firm is shown to be significantly less than that of the smaller firm.

• Journal of Korea Port Economic Association
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• v.35 no.1
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• pp.57-76
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• 2019

This study deals with the determinants of employment productivity of transportation labor, who are the main agents of the transportation industry that has made significant contributions to our country's industrial development. The study selected the determinants of employment productivity using the Korea Labor and Income Panel Study data, and analyzed the effects of various factors using panel logistic regression, panel OLS model, and panel robust regression. The results were as follows. First, a more positive effect was shown when employees held a regular job, had a "high level of education", "joining the labor union" and "experiencing vocational training". Second, in the case of job security, having a "high level of education" and "joining the labor union" showed a more positive effect; further, job security was higher for employees who worked in a "big company" or were "married". Third, in the case of higher income productivity, higher values of "age", "academic ability" and "company size" had a more positive effect, whereas larger values of "education" and "health condition except job training" had a negative one. Fourth, in the case of job satisfaction, "female", "joining the labor union" and having a higher "income" or "job security" led to higher satisfaction and a better "health condition compared to an average person". Further, a higher "overall life satisfaction" and "economic level" led to lower job satisfaction. The analysis of the determinants of employment productivity of transportation business and seeking for improvement plan is expected to improve the employment productivity in the transportation business.

• Industry Promotion Research
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• v.8 no.4
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• pp.69-79
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• 2023

This study sought to propose ways to improve the happiness of Chinese product designers by verifying whether grit moderates the effect of job stress on happiness through professional values. A purposively sampled participants of 335 Chinese product designers living in Guangdong Province, southern China, were selected. Data analysis was performed using SPSS PC+ Win. Ver. 26.0 and PROCESS Macro ver. 4.2. The statistical techniques applied were frequency analysis, reliability analysis, correlation analysis, and moderated mediation effect analysis. The research results are as follows. First, job stress showed a negative correlation with professional value and grit, but did not show a significant correlation with happiness. Except for job stress, there was a positive significant correlation between other variables. Second, the conditional indirect effect was significant when grit was M-SD, M, or M+SD. M+SD. Therefore, the moderated mediating role of grit was verified. However, as professional value increased, grit played a role in increasing happiness. Still, in the path of job stress -> professional value -> happiness, grit did not buffer the negative effect of job stress on happiness through professional stress. Suggestions were made to improve the happiness of product designers using professional values and grit.

• Journal of Korean society of Dental Hygiene
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• v.20 no.3
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• pp.369-378
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• 2020

Objectives: The purpose of this study is to examine the correlation between the critical thinking disposition of dental hygienists and the variables associated with clinical decision making and job performance to analyze factors affecting job performance. Methods: A questionnaire survey was administered to 166 dental hygienists from June 24 to August 8, 2019. We analyzed results with t-test, Mann-Whitney U test, ANOVA, Pearson's correlation analysis and a multiple regression analysis using the SPSS Windows version 23.0(SPSS Inc. IL, USA). Results: Critical thinking disposition was the highest for open-mindedness and clinical decision making ranked highest for canvassing of objectives and values. Job performance ranked highest in terms of assist with dental treatment. Factors affecting dental hygienists' job performance were clinical decision making and critical thinking disposition(p<0.001, adj. R² =31.4). Conclusions: It is expected that this study will provide basic data for the development of programs to enhance the job performance of dental hygienists. Furthermore, it is necessary to actively support plans such as conducting seminars at dental institutions and providing educational participation opportunities.

• Journal of Convergence for Information Technology
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• v.11 no.11
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• pp.195-203
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• 2021

This is descriptive research aimed at determining the relations with appearance satisfaction and self-efficacy in controlling job-seeking stress and at providing basic data necessary to decide on an education direction for better career maturity and explore psychological resources. For data collection, convenience sampling was performed among dental hygiene students consenting to participate in the research in Chungcheong and Jeolla Provinces to complete a self-administered questionnaire from November 25 to December 13, 2019. Appearance satisfaction was positively correlated with self-efficacy and was negatively correlated with job-seeking stress; self-efficacy was negatively correlated with job-seeking stress. The factors affecting job-seeking stress were self-efficacy, appearance satisfaction, and major satisfaction. It would be necessary to develop a practical counseling program targeting the combination of positive appearance acceptance and improvement in self-efficacy on the basis of correct aesthetic values with the objective of reinforcing job-seeking competence intensively among dental hygiene majors.

• Convergence Security Journal
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• v.17 no.5
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• pp.179-186
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• 2017

The purpose of this study is to analyze the relation of security officers' martial arts training and job performance. To this end, we conducted surveys on security practitioners. The questionnaire consisted of three variables, "necessity of martial arts training, application to practical security work, improvement of job satisfaction". In this study for reliability analysis, Chronbach's Alpha coefficient was calculated. In order to verify the validity of the measured variables, exploratory factors were analyzed using the Berimax method. Both AVE and CR values of the measured variables were above the reference value of 0.5, indicating that the convergence validity was good. As a result of the hypothesis test, the standardization coefficient is 0.636 for "need for training in martial arts training${\Rightarrow}$practical security work", 0.986 for "practical security work${\Rightarrow}$job satisfaction improving", and the relationship between the two hypotheses is positive(+). In order to improve the job satisfaction of security-related practitioners, it seems necessary to raise the need for martial arts training.

• Journal of Convergence for Information Technology
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• v.12 no.5
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• pp.278-289
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• 2022

This study empirically analyzed the effect of work value of beauty industry workers on service productivity through job satisfaction. First, according to the result of investigating factors that make effect on service productivity, it was identified that service productivity increases when work value and job satisfaction are higher. Also, it was identified that service productivity increases when awareness of satisfying values, intrinsic satisfaction, recognition of work value, recognition of self-value, and extrinsic satisfaction are higher. Fourthly, as a result of investigating the effects of work value of beauty industry workers on service improvement through job satisfaction, it was identified that the mediating effect of job satisfaction was also significant in the sobel test as Z value of |Z|=15.057 showed a greater value than 1.96. Based on the results of this study, it is expected that inner motivation can be increased for beauty industry workers to recognize that their work is meaningful and worthwhile and service productivity can be maximized by improving the satisfaction and intrinsic job satisfaction that come from work itself.

• The Journal of the Convergence on Culture Technology
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• v.9 no.2
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• pp.151-157
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• 2023

This study investigated the effect of calling on job burnout among nursing care workers, and a total of 230 copies were distributed to analyze 198 copies, excluding 32 copies of questionnaires with poor or missing answers. The correlation between factors on job burnout was found to have a positive correlation coefficient in the values of personal environment meaning and work meaning, and as a result of examining the effect of sub-factors of calling consciousness on job burnout, it was found that personal environment suitability had a significant effect. In order to reduce the job exhaustion of nursing care workers comprehensively, it is necessary to provide an environment for working at an institution. In addition, it will be necessary to activate the relevant institution in preparation for problems occurring in the workplace.

• Korean journal of food and cookery science
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• v.18 no.2
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• pp.193-199
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• 2002

The Job's tear gruels were prepared by various mixing ratios, particle size and soaking times of Job's tear and rice flours, and the physical and sensory properties of these gruel samples were measured by using a Brabender visco-amylograph and sensory evaluation. Also, the changes in the pH and viscosity of the gruel samples stored for 14 days at 4$\^{C}$ were measured as the parameters of gruel quality. The results showed that the peak viscosity was decreased by increasing the ratio of Job's tear flours. The values of peak viscosity and consistency of rice and Job's tear flours increased as the particle size decreased. As the soaking time of rice and Job's tear flours increased, the initial pasting temperature decreased. In sensory characteristics, the nutty taste was increased as the Job's tear flour levels increased. Overall acceptability of Job's tear gruel was the highest in the one of rice and Job's tear flours at 50:50 ratio. During 14 days of storage, the pH and viscosity of Job's tear gruels were increased till the sixth day, and then decreased slightly.

• Food Science and Biotechnology
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• v.18 no.5
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• pp.1145-1149
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• 2009

Physicochemical properties of native and acid-modified Job's tears (Coix lachryma-jobi L.) starches were investigated. Starch extracted from Job's tears was treated with 2.2 N hydrochloric acid for different length of time (3, 6, 12, and 18 hr). The hydrolysis pattern of starches with the acid proceeded rapidly up to 12 hr and then the approached constant values. The swelling power of acid-modified starches measured at all temperatures was lower than that of its native counterparts and the water solubility index increased as temperature and hydrolysis time increased. Rapid visco analyzer viscograms of acid-modified starches demonstrated a very low viscosity as compared with that of native starch. However, Xray diffraction did not show any significant alteration in the crystallinity after acid-modification.