• The Journal of the Korea Contents Association
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• v.16 no.6
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• pp.761-773
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• 2016

The purpose of this study was to investigate the relationship between ethical leadership, organizational identification and job stress. Moreover, harmonious passion was considered as a mediating factor between ethical leadership and outcomes. This study tested the mediated model with data from 369 employees working in various organizations. Then, structural equation modeling was used to test proposed hypotheses. The result showed that ethical leadership was positively related to harmonious passion and organizational identification. However, ethical leadership was not related to job stress in this study. And through the mediating role of harmonious passion, ethical leadership had significant effects on organizational identification positively and job stress negatively. Especially, it was revealed that harmonious passion partially mediated the relationship between ethical leadership and organizational identification, and fully did the relationship between ethical leadership and job stress. Implications and limitations of the study were discussed.

• Quality Improvement in Health Care
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• v.19 no.1
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• pp.44-52
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• 2013

Objectives: Several studies on hospital malnutrition have reported that malnutrition among patients is highly prevalent and that more than 40% of hospitalized patients have nutritional risk factors. The purpose of this study was to assess the implementation of physicians' prescribed nutrition therapy before and after a protocol on nutrition therapy for malnourished inpatients was instituted. Methods: Data regarding the rates of physician implementation of nutritional therapy and the duration of therapy were collected and analyzed using SPSS version 20. Results: The percentages of physicians who prescribed nutrition therapy before and after the protocol was initiated were 47.5% and 74.6%, respectively, which statistically significant with 95% confidence. The rates of therapy lasting less than 24 hours before and after the protocol was in place were 100% and 86.4%, respectively, which was not statistically significant. This result suggests that the improvement activity was not effective. Conclusion : The percentage of physicians who prescribed nutritional therapy based on improved nutritional program was significantly increased. Nutrition therapy for malnourished inpatients can be advanced through this new model.

• The Journal of the Korea Contents Association
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• v.17 no.11
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• pp.252-263
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• 2017

The study empirically explored factors influencing photo sharing behavior on Instagram based on the uses and gratification theory. An online survey was conducted 356 respondents those who have used Instagram and have shared photos within the last three months. Frequency analysis, descriptive statistics, confirmatory factor analysis, and structural model analysis were conducted using SPSS 19.0 and AMOS 21.0. The results of this study are as follows: first, communication has the greatest effect on photo-sharing behavior; second, entertainment has a positive effect on photo-sharing behavior; third, self-expression has a positive effect on photo-sharing behavior; fourth, service users' trust has a positive effect on photo-sharing behavior. This study adds to the current literature and contributes to understanding consumers' photo-sharing behavior.

• The Journal of the Korea Contents Association
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• v.20 no.5
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• pp.398-409
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• 2020

The purpose of the study was to investigate the effects of the mother's parenting style and parenting stress on infant's basic living habits. The subjects for the study were 155 infants and their mothers. The collected data was analyzed using descriptive statistics, correlation analysis, and a multiple regression model technique. The results of the of the correlation analysis showed some significant positive correlations between the mother's parenting style and the infant's basic living habits. In addition, the mother's parenting stress showed the effects of a significant negative correlation with the infant's sleeping habit and eating habit, a sub-factor of the basic living habits. The importance of the mother's parenting style and parenting stress are discussed in terms of the relation to the developing infant's basic living habits.

• Korean Journal of Human Ecology
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• v.21 no.5
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• pp.957-973
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• 2012

This study analyzed consumer public complaint behaviors and the satisfaction of complaint handling among credit card users who availed of credit card services. Relatively little research has been done in this area, despite the obvious importance of understanding and improving credit card market conditions. The purpose of this study was to examine consumer compliant behaviors with a focus on public actions, such as voice responses and the third party actions among credit card users. With the goal of providing consumers with more positive expectations of credit card companies' complaint handling process, this study investigated the status of public actions and the negative effect of complaints on the overall satisfaction of post-complaint behavior toward credit card services. The responses from 1,000 credit card users were analyzed using descriptive analysis, factor analysis, multi-logit analysis, and Heckman selection estimate. The analysis provided three major results: (1) perceived service quality among credit card users was conceptualized into groups such as responsiveness, innovation, company, additional service, and fee, (2) perceived service qualities, age, residential area, employment status, and subjective economic status had significant effect on public compliant action behaviors, and (3) unidimensional factors resulting from post-complaint behaviors were analyzed and several variables, such as period of credit card use, average amount used, and perceived service quality had significant effects on the degree of satisfaction associated with complaint handling in terms of credit card services. Several implications and directions for further research are discussed.

• Journal of Korea Multimedia Society
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• v.7 no.4
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• pp.559-566
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• 2004

In general, the certainty factors of the fuzzy production rules and the certainty factors of fuzzy propositions appearing in the rules are represented by real values between zero and one. If it can allow the certainty factors of the fuzzy production rules and the certainty factors of fuzzy propositions to be represented by interval -valued fuzzy sets, then it can allow the reasoning of rule-based systems to perform fuzzy reasoning in more flexible manner. This paper presents fuzzy Petri nets and proposes an interval-valued fuzzy backward reasoning algorithm for rule-based systems based on fuzzy Petri nets Fuzzy Petri nets model the fuzzy production rules in the knowledge base of a rule-based system, where the certainty factors of the fuzzy propositions appearing in the fuzzy production rules and the certainty factors of the rules are represented by interval-valued fuzzy sets. The algorithm we proposed generates the backward reasoning path from the goal node to the initial nodes and then evaluates the certainty factor of the goal node. The proposed interval-valued fuzzy backward reasoning algorithm can allow the rule-based systems to perform fuzzy backward reasoning in a more flexible and human-like manner.

• Journal of Nutrition and Health
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• v.49 no.2
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• pp.72-79
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• 2016

Purpose: The initiation of mandatory folic acid fortification using pteroylmonoglutamic acid (PteGlu) has reduced the rate of congenital malformations. However, it also appears to be responsible for several adverse effects, including increased cancer incidence. This may be related to physicho-chemical characteristics of PteGlu. This study examines the potential effect of high concentrations of PteGlu on a population subjected to mandatory folic acid fortification using an in vitro model. Methods: Caco-2 (colorectal cancer) and MCF7 (breast cancer) cell lines were cultured at 6 different PteGlu concentrations (0, 0.1, 1, 50, 250, and $500{\mu}g/ml$) for 6 days. Cell growth was determined using thiazolyl blue tetrazolium bromide assay. The genotype of dihydrofolate reductase 19bp deletion/insertion (DHFR 19-del) was also scored in cell lines using a restriction fragment length polymorphism technique to examine whether genetic variations may factor in cell proliferation. Results: PteGlu exhibited differential growth promoting properties between cell lines. Caco-2 cells did not show a significant growth difference at low concentrations compared to control, however, at higher concentrations, the growth showed a contrasting trend in the early experimental period, while MCF7 showed enhanced cell growth at all concentrations. The DHFR 19-del genotype differed in the two cell lines. Conclusions: Altered response to PteGlu by Caco-2 and MCF7 may reflect a tissue specific disease aetiology or genotype specific differential enzyme activity, for example by DHFR, to critical levels of PteGlu. As folic acid fortification is a blanket intervention, and DHFR and other enzyme activities vary between individuals, PteGlu intake may have an as yet undefined effect on health. These findings may be relevant when considering mandatory folic acid fortification for disease prevention.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.1
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• pp.181-187
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• 2011

This paper deals with the job creation effect of economic growth by focusing on the types of technological progress. The hypothesis is that labor-saving technological change may create less job than capital-saving or factor-neutral ones. The hypothesis is proved theoretically using an equilibrium model of labor market. Empirically, first, a simulation experiment is performed to check the hypothesis empirically and confirms it. Secondly, we look at labor/capital ratio since it may be affected by the type of technological improvement. One important policy implication is that job creation effect of economic growth depends on the structure of labor supply as well as that of labor demand.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.12
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• pp.5926-5930
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• 2012

This study was conducted to identify the factors related between clinical health management and laparoscopy-aided gastrectomy patients. Data were surveyed using interview and questionnaires by 201 patients who visited the surgical department of a general hospital which was located in Metropolitan area from January 16 to February 16, 2012. As a result of study, first, the degree of performativity was significantly positively correlated with efficiency(r=0.24, p<.01). Secondly, the explanatory power of the model in clinical health management was to 42.7% by selected variables. Thirdly, multiple regression analysis results showed that efficiency was investigated the most influential and significant factor to affect the degree of health management practices with 0.25(p=.02). In conclusion, in order to improve the health management level of laparoscopy-aided gastrectomy patients, it needs to develop and apply a comprehensive education program including the personal characteristics of performativity, self-achievement, and perceived barriers.

• Journal of the Korean Society of Propulsion Engineers
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• v.8 no.2
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• pp.102-114
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• 2004

The present work has been developed the interpretation processor including the behavior of material failure and the separation phenomena under transient dynamic loading (the operation of explosive bolt) using AUTODYN V4.3, SoildWork 2003 and TrueGrid V2.1 programs. It has been demonstrated that the interpretation in ridge-cut explosive bolt under dynamic loading condition should be necessary to the appropriate failure model and the basic stress of bolt failure is the principal stress. The use of this interpretation processor developing the present work could be extensively helped to design the shape and the amount of explosives in the explosive bolt having a complex geometry. It is also proved that the interpretation processor approach is an accurate and effective analysis technique to evaluate the separation mechanism in explosive bolts.