• Research in Community and Public Health Nursing
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• v.31 no.3
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• pp.348-359
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• 2020

Purpose: The purpose of this study is to construct and test a structural model for the Post-traumatic Growth (PTG) of police officers. The conceptual model is based on Calhoun and Tedeschi's PTG theory. Methods: Data were collected from 269 police officers working at 10 police stations in Seoul from September 26 to October 9, 2017. The exogenous variable was traumatic experiences, and endogenous variables were pain perception, self disclosure, social support, deliberate rumination, and PTG. The collected data were analyzed in order to calculate the direct and indirect effects of factors affecting PTG using SPSS/WIN 23.0 and AMOS 21.0. Results: The hypothetical model showed a good fit to the data: 𝑥²/df=2.57, GFI=.90, CFI=.95, TLI=.91, RMSEA=.07, SRMR=.07. The hypothetical model showed a similar result with the data, and out of 10 paths, 7 were statistically significant. The model explained 36% of the variance in the PTG of police officers. The model confirmed that social support and deliberate rumination had a direct effect, and that self-disclosure had an indirect effect on police officers' PTG. Conclusion: Nursing intervention programs to increase PTG of police officers should focus on deliberate rumination, social support, and self-disclosure. In addition, they should be accompanied by various crisis managements and consultations that can promote PTG.

• Journal of The Korean Association of Information Education
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• v.15 no.4
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• pp.645-660
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• 2011

The purpose of this study is to identify the causal relationship among perceived instrumentality, mastery goal orientation, self-regulated learning and academic achievement in cyber education. 317 current students of the W cyber university participated in the study. The results of structural equation modeling analysis are as follows: First, endogenous instrumentality affects mastery goal orientation. Second, mastery goal orientation affects self-regulated learning. Third, while exogenous instrumentality had negative effect on academic achievement, self-regulated learning was the only variable that had positive effect on academic achievement. In addition, the result indicated that endogenous instrumentality had indirect effect on academic achievement and self-regulated learning mediated between mastery goal orientation and academic achievement.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.23 no.3
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• pp.310-319
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• 2016

Purpose: This study was done to examine whether risk of suicidal ideation in nursing students as related to social support and ego-resilience, and whether subjective wellbeing mediated the relationships. Methods: Structural equation modeling was applied to test the model in which ego-resilience and social support from family, friends, and others were considered as exogenous variables and subjective wellbeing as a mediating variable. The participants were 285 nursing students who completed self-report measures including the Suicidal Ideation Questionnaire, the Multidimensional Scale of Perceived Social Support, the Ego-Resiliency Scale, and the Index of Wellbeing. Results: Results show that higher scores on family support and ego-resilience were positively associated with subjective wellbeing and negatively with suicidal ideation. Subjective wellbeing mediated the relationships between family support and suicidal ideation, and also ego-resilience and suicidal ideation. Among the three social supports, only family social support had both direct and indirect effects on suicidal ideation. Conclusion: Findings suggest that family support is a useful resource in the prevention of suicidal ideation in nursing students and building supportive relationship with family should be considered as the first step in suicide prevention strategies. Also enhancing ego-resilience could play an important role to reduce suicide risk through promoting well-being.

• Human Ecology Research
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• v.52 no.2
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• pp.141-150
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• 2014

The purpose of the present study was to determine the structural relationship among the father's participation in childcare, parenting stress, marital satisfaction, and the job satisfaction of working mothers. This study is based on the 2011 Panel Study on Korean Children, a large, population-based study conducted by the Korea Institute of Child Care and Education. The participants were 431 working mothers. To ensure the reliability and validity of the questions, descriptive statistics of the frequency, ratio, average, standard deviation, skewness, and kurtosis were obtained using SPSS 21.0. Exploratory factor, variables correlation, and reliability analysis were also performed. The structural analysis using AMOS 20.0 in the bootstrapping method was conducted to perform a path analysis among the variables and to assess the suitability of the model. A hypothetical model was proposed, which was composed of a father's participation in childcare as an exogenous variable and parenting stress, marital satisfaction, and job satisfaction of a working mother as the endogenous variables. The results of this study are as follows: First, a father's participation in childcare and the parenting stress and marital satisfaction of a working mother affect the job satisfaction of the mother. The most influential factor is marital satisfaction. Second, marital satisfaction has mediating effects between the father's participation in childcare and the parenting stress and job satisfaction of the working mother. Third, parenting stress does not affect job satisfaction.

• Journal of Plant Biotechnology
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• v.7 no.3
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• pp.161-167
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• 2005

Brassinosteroids are steroidal plant hormones and are known to modulate physiological and cellular response in a wide range of plant species. Considerable insights has been achieved of the physiological role of brassinosteroid in Brassica species in the past few years, but their effect on direct organogenesis has not been extensively studied. In this sense, under optimal basal media and growth conditions we tested the cellular and organogenic response of 24-epibrassinolide (EBL) in a variable concentration (0.1 to $5.0\;{\mu}M$) and Zeatin (Z) (1.0 to $100\;{\mu}M$) and their synergic effect on hypocotyl explants of cauliflower and broccoli. The isolated EBL accelerated cell elongation and promotes direct organogenesis. One micromolar EBL + $10\;{\mu}M$ of Z was the most efficient combination for cell elongation, cell differentiation as well as for organogenesis. A suppressing effect on root induction was confirmed for all the tested hormone levels. The general results indicate a synergic effect of EBL-Z and EBL potentates Zeatin activity, at least in certain tissues. Besides de genetic factors, we can speculate that the natural hormone concentration in the explants might affect the responses by application of exogenous growth regulators. Experiments with new plant growth regulators, like brassinolide, are important aiming to maximize or accelerate plant regeneration for in vitro multiplication or for genetic transformation.

• The Journal of the Korea Contents Association
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• v.12 no.7
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• pp.437-444
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• 2012

This study features an analysis of the socio-economic factors of ten cities on the Honam-line that affect the number of train passengers. The 3 main factors based on the principal component analysis were the population, the distance between two regions, and the area size of each region while the number of automobiles has been conventionally used instead of the area size of each region. A formula to predict the train passengers by the regression analysis was developed and showed a good agreement to the number of real passengers. When Honam highspeed railway is opened, the traveling time between two regions as well as the area size of each regions should be more precisely considered.

• Journal of Korean Academy of Nursing
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• v.50 no.1
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• pp.26-38
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• 2020

Purpose: The purpose of this study was to explain a structural model of posttraumatic growth among psychiatric nurses based on existing models and a literature review and verify its effectiveness. Methods: Data were collected from psychiatric nurses in one special city, four metropolitan cities, and three regional cities from February to March 2016. Exogenous variables included hardiness and distress perception, while endogenous variables included self-disclosure, social support, deliberate rumination, and posttraumatic growth. Data from 489 psychiatric nurses were analyzed using IBM SPSS Statistics 19.0 and AMOS 20.0. Results: The modified model was a good fit for the data. Tests on significance of the pathways of the modified model showed that nine of the 14 paths were supported, and the explanatory power of posttraumatic growth by included variables in the model was 69.2%. For posttraumatic growth among psychiatric nurses, deliberate rumination had a direct effect as the variable that had the largest influence. Indirect effects were found in the order of hardiness, social support, and distress perception. Self-disclosure showed both direct and indirect effects. Conclusion: A strategy to improve deliberate rumination is necessary when seeking to improve posttraumatic growth among psychiatric nurses. Enhancing psychiatric nurses' hardiness before trauma would enable them to actively express negative emotions after trauma, allowing them to receive more social support. This would improve deliberate rumination and consequently help promote psychological growth among psychiatric nurses who have experienced trauma.

• Journal of Gifted/Talented Education
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• v.25 no.1
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• pp.161-177
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• 2015

The purpose of the present study was to verify the structural relationship among metacognition, interactions, problem solving ability and achievement in gifted students through the 3P model. In this study, factors affecting the performance of gifted education are based on 3P(presage, precess. product) theory(Biggs, 2003). Participants attended a 174 gifted student in institutes for the gifted education in the city office of education in Korea. A hypothetical model was proposed, which was composed of metacognition and interactions as exogenous variables; and problem solving ability and achievement as endogenous variables. The results of this study are as follows: First, metacognition and interactions had significant effects on gifted students' problem solving ability. Second, problem solving ability had significant effects on gifted students' achievement. And problem solving ability was verified as a complete mediating variable between metacognition and achievement also interactions and achievement.

• International journal of advanced smart convergence
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• v.10 no.4
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• pp.158-164
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• 2021

The purpose of this study is to analyze the structural relationship between customer's pleasure, customer satisfaction, switching cost, and relationship commitment using the fitness center and provide implications. Specifically, this study aims to investigate the effect of the degree of customer's awareness of pleasure on the relationship commitment through the medium of customer satisfaction and switching cost. For this purpose, the structural equation model was constructed based on the previous studies, and the exogenous variables were pleasure, and the endogenous variables were customer satisfaction, switching costs and relationship commitment. The subjects of this study were customers who used fitness centers in the metropolitan area. The sampling method for the sample survey was a total of 277 people using convenience sampling. 257 copies were used as final data except for 20 samples that were not appropriate for the study. The statistical program for data analysis was IBM SPSS Ver. 26.0 and Amos 21.0. The specific data processing method is as follows: First, frequency analysis was conducted to understand the general characteristics of the subjects. In order to verify the validity and reliability of the research tools, confirmatory factor analysis and reliability analysis were conducted. In order to understand the theoretical relationship between each variable, structural equation model was conducted. The results of data processing on the research model are as follows: First, the pleasure of the fitness center customers had a positive effect on customer satisfaction. Second, customer satisfaction had a positive effect on the switching costs. Third, customer satisfaction had a positive effect on the customer commitment. Fourth, switching costs had a positive effect on customer commitment.

• The Journal of the Korea institute of electronic communication sciences
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• v.19 no.4
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• pp.709-720
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• 2024

By inputting consumer satisfaction as an exogenous variable into the value-based adoption model, this study explored the factors that influence the user's intention to continue using image-centered generative AI. Briefly presenting the main results, first, enjoyment did not significantly affect perceived value, but usefulness had a positive effect on perceived value. Second, Fee and technicality had a negative effect on perceived value. Third, perceived value had a positive effect on consumer satisfaction and continuous use intention. Fourth, consumer satisfaction had a positive effect on continuous use intention. Based on the above results, it is important to recognize the usefulness of image-centered generated AI and enjoyment in the process of use in order to increase the user's intention to continue using image-centered generated AI, and at the same time, it will be important to increase the user's perceived value and satisfaction by minimizing the reasonable fee and complexity in the method of use at the level acceptable to the users.