• Journal of Digital Convergence
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• v.16 no.7
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• pp.429-439
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• 2018

The objective of the study was to analyze difference in cognitive function according to social isolation level in elderly Korean. The author classified the social isolation into the structural isolation and contact isolation. Structural isolation corresponded to the no spouse or no children and the contact isolation corresponded to the absence of contact with children, friends or social association. Author conducted multivariate regression analysis with the elderly people aged 65 years or older from the 5th wave of the Korean Longitudinal Study of Ageing data. Number of sample was 3,971. It was confirmed that the level of cognitive function was lower according to level of social isolation. It was also confirmed that friends/neighborhood isolation, and social activity isolation showed significant relationships with cognitive functions. Based on the results, author suggested that to protect the elderly from negative effects of social isolation, we needed the policy to promote elderly's the participation in social activity. The study to analyze the factors related to social isolation was also needed.

• Journal of Digital Convergence
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• v.16 no.7
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• pp.79-88
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• 2018

Previously, there have been many studies on the fraud of employees, internal customers of the company, but there have been a lot of studies on military affairs that are closely related to the improvement of army's combat power. Therefore, this study investigates how communication satisfaction is influenced by the characteristics of SNS. For empirical verification, 240 soldiers were surveyed in this study. The analysis method was to investigate the correlation between each variable using the Structural Equation Model (SEM). The results of this study show that the SNS characteristics have a positive effect on the overall model related to organizational communication satisfaction. Organizational communication satisfaction has a positive impact on military fraud and organizational communication satisfaction has been shown to mediate between army and SNS traits. Through this research, we intend to promote the morale of soldiers by activating communication among group members using appropriate level of social networking.

• Journal of Digital Convergence
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• v.16 no.7
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• pp.199-211
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• 2018

Ever since Korea was geopolitically divided into North and South Korea in the 1940s, South Korea has depended on maritime transportation for global trade and logistics. Now, however, South Korea is preparing to develop a new global route for trans-Eurasia logistics passing through North Korea. Even though there are difficulties to overcome, South Korea expects that a new overland route, shorter than the existing seaways in the Europe-Asia section, will bring more frequent trade with more rapid and cost-effective logistics services in the future. Related to this issue, this study aims to proactively analyze dynamic logistics changes in South Korea when a trans-Korea railway is developed and linked with the trans-China railway and the trans-Siberian railway. This study employed a system dynamics simulation approach to model the logistics system in South Korea. The simulation results indicated that the traffic of the Uiwang inland container depot near the capital area may increase but the traffic of the Port of Busan may decrease. With supplementary research, consequently, follow-up studies on adjusting the traffic capacity in Korea are required to attain successful trans-Eurasia logistics by rail.

• Journal of Digital Convergence
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• v.16 no.7
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• pp.259-265
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• 2018

Compartment models, a type of mathematical model, have been widely applied to characterize the changes in a dynamic system with sequential events or processes, such as the spread of an epidemic disease. A compartment model comprises compartments, and the relations between compartments are depicted as boxes and arrows. This principle is similar to that of the system dynamics (SD) approach to constructing a simulation model with stocks and flows. In addition, both models are structured using differential equations. With this mutual and translatable principle, this study, in terms of SD, translates a reference SEIR model, which was developed in a recent study to characterize the transmission of the Middle East respiratory syndrome (MERS) in South Korea. Compared to the replicated result of the reference SEIR model (Model 1), the translated SEIR model (Model 2) demonstrates the same simulation result (error=0). The results of this study provide insight into the application of SD relative to constructing an epidemic compartment model using schematization and differential equations. The translated SD artifact can be used as a reference model for other epidemic diseases.

• Journal of Digital Convergence
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• v.16 no.7
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• pp.479-491
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• 2018

This study aims to figure out factors influencing health and moderating effect of social support resource between those factors and health of low income women in diverse spheres. The data of low income women were 239 cases and were utilized SPSS ver. 21 program. The main results of this study are as follows: firstly, health of low income women is identified medium level. Secondly, education level, self-efficacy and social support resource are related to the self-rated health of low income women. Especially, social support resource functions as moderators on between education and self-rated level of the health of low income women. Consequently, the findings suggest the need to expand the social intervention range to promote health of low income women from cost benefit to psychological support such as capacity building for self-management and establishment of safety-net to extend social support. And subsequently, the time attribute of the factors related to low-income women's health and the diverse characteristics of the subjects should be considered.

• Journal of Digital Convergence
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• v.16 no.7
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• pp.493-509
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• 2018

This study was performed to compare the effects of health behaviors, dietary habits, and psychological health on metabolic syndrome (MS) between young adults living in one-person households (OPHs) and multiple-person households (MPHs). The data from the Korean National Health and Nutrition Examination Survey (KNHANES), which was conducted in 2014 and 2016 were used. The subjects were 2,682, who were 20 to 39 years old. The data were analyzed using complex sample Rao-Scott ${\chi}^2-tests$, t-tests, and multiple logistic regression using SPSS 23.0 software. Sex, age, obesity, and subjective health status were associated with MS in young adults living in either OPHs or MPHs. Breakfast consumption frequency, eating alone, food label use, stress, and depression were associated with MS only in young adults living in OPHs. Thus, these differentiated risk factors of MS should be considered, when health promotion strategies and interventions are planned for young adults living in OPHs. Also, further studies are needed to evaluate the effectiveness of the strategies or interventions.

• Journal of Digital Convergence
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• v.16 no.7
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• pp.145-151
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• 2018

This paper is a study on city brand development which is increasingly interested as a means to enhance the attractiveness of the city. the previous research, the design of city brand identity was an application from the internal stakeholder's point of view related to the metropolitan government. However, in the present study, we tried to take a external approach that perceptions and designs city brands from the related to the consumer. For the purpose of research, based on previous studies, we extracted three images of leading, stable and amusing city brand images and prepared three scenarios for the imaginary city as experimental stimuli. The results showed that the overall city brand attitude, residence intention, and tourism intention to the imaginary city were significantly different according to the leading, stability and amusement brand image. According to the results of this study, it is necessary to continuously effort the development of city brand image which is perceived by consumers in order to differentiate city.

• Journal of Digital Convergence
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• v.16 no.7
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• pp.267-275
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• 2018

This study was conducted to analyze the impact factors of serious dental disease of elderly and to propose the need to treatments of negative factors on oral health-related quality of life. This study used the data of the 6th 3nd-year(2015) National Health and Nutrition Examination Survey. The dependent variables of this study were reviewed for serious dental diseases, and the independent variables were divided into demographic characteristics, health status and behavior, oral health status, and behavior. The results of study were as follow. Factors influencing dental caries was household income(p<.01), health checkups(p<.05), experience of toothache for the recent 1 year(p<.05), and whether to use oral hygiene devices(p<.05). Factors influencing periodontal disease was age(p<.05), occupation(p<.05), and whether to Comorbidity(p<.05). Based on these results, a political alternative plan will need to be arranged for promoting oral health in the aged as a relevant research is vitalized.

• Journal of Digital Convergence
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• v.16 no.7
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• pp.451-460
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• 2018

This study empirically examined the relationship among ethical leadership, ethical climate, unethical behavior, and organizational commitment in the department affiliated with physical education. Survey data collected from 264 students in the department affiliated with physical education from 5 institutions of a 4-year university located in Seoul and Incheon by convenience sampling. As a result, H1, ethical leadership was not statistically significant with unethical behavior. H2, ethical leadership had a positively significant impact on ethical climate. H3, ethical leadership was found to be positively associated with organizational commitment. H4, ethical climate was not statistically significant with unethical behavior. H5, ethical climate had a positively significant impact on organizational commitment. H6 was not available. H7, ethical climate partially mediated the relationship between ethical leadership and organizational commitment. The theoretical and practical implications of the research findings was discussed.

• Journal of Digital Convergence
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• v.16 no.7
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• pp.9-17
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• 2018

Recently, much attention in electronic financial fraud has been dramatically increased. In particular, the electronic financial fraud has been transforming to social engineering. Despite the growing interest in electronic financial fraud, few guidelines exist how to effectively avoid the serious damage from electronic financial fraud. Moreover, it is rarely investigated cases of victims from financial fraud. Therefore, the purpose of this study is to investigate why financial fraud crime victims occurs. To enhance mundane realism, we conducted Focus Group Interview(FGI) with actual victims from financial fraud crime. Drawing analysis of FGI with actual victims, we found that there are certain damage patterns. Further, we found that the reason why financial fraud crime victims occurs is optimistic biases of humans rooted in behavioral economics. Therefore, this study provides the valuable guidelines and directions to prevent electronic financial fraud based on risk and crisis management perspective. Ultimately, this study is able to help the establishment and implementation of a comprehensive electronic financial fraud prevention policy.