• Korean Journal of Family Social Work
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• no.55
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• pp.157-188
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• 2017

The purpose of this study was to examine the effects of self-care activities on physical and mental health of primary caregivers of functionally impaired elderly. Data were collected from 185 primary caregivers who were caring for their spouses or parents with functional impairment at home in Daejon. SPSS 21.0 software was used for descriptive analysis and hierarchical regression analysis. The results showed that (1) primary caregivers reported their physical health status as poor (2) the domains of health responsibility, physical activity in their self-care activities were significant predictors of their physical health level (3) primary caregivers reported very high level of depression (4) their mental health was significantly influenced by spiritual growth among self-care activities. Based on these findings, social work intervention and policy suggestions were discussed.

• Journal of the Korea Society of Computer and Information
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• v.25 no.6
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• pp.225-230
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• 2020

The purpose of this study was to present implications for empirical analysis of the structural relationship between the level of activities for senior citizens, self-efficacy, and life satisfaction and depression. In order to the survey was conducted For the elderly students who are enrolled in the Senior Citizens' Welfare Center and participating in the information service education in the G-metropolitan city. The method of data analysis was verified by the Regression and Hierarchical Regression analysis using the spss 22.0 statistical program. As a result, The level of activity for the elderly increases the level of self-efficac, The level of activity and self-efficacy of the elderly increased the level of living satisfaction of the elderly and It has been shown to lower the level of depression. Self-efficacy has been shown to have a mediating effect in the relationship between senior citizens' level of information service activities and living satisfaction and depression. Based on these analysis results, a policy measure was proposed to enhance the level of activities for senior citizens.

• Journal of the Korea Society of Computer and Information
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• v.25 no.6
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• pp.99-107
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• 2020

In this paper, we analyze the characteristics of mobile cache, which is used to improve the data access speed when executing applications on mobile devices, and verify the importance of mobile cache through a cache data access experiment. The mobile device market has grown at a fast pace over the past decade; however, battery limitations and size, price considerations restrict the usage of fast hardware. Thus, their performance are supplemented by using a memory buffer structure such as the cache memory. The analysis mainly focuses on cache size, hierarchical structure of cache, cache replacement policy, and the effect these features has on mobile performance. For the experimental data, we applied a data set from a microprocessor system study, originally used to test the cache performance. In the experimental results, the average data access speed on a mobile device showed a performance improvement of up to 10 times with the presence of cache memory than without. Accordingly, the cache memory was helpful for the performance improvement of a mobile device when the specifications were identical.

• The Journal of Korean Society for School & Community Health Education
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• v.21 no.1
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• pp.15-31
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• 2020

Background and objectives: One-person households are the fastest growing family type in Korea. They bring social concerns such as weakened social integration, increasing poverty and social isolation. They are not homogeneous but heterogeneous groups depending on their socio-demographic characteristics including generation. This study compared the life satisfaction level as well as factors affecting it among the three one-person household generations Methods: The 13th wave of the Korea Welfare Panel dataset with 1,187 respondents was utilized. For data analysis Chi-square test, analysis of variance and hierarchical regression analysis were employed. Generations are divided into three, namely young adult (20-39), the middle-aged (40-64) and the elderly (65 and over). Result: The life satisfaction level was highest among the young adult one-person household generation, followed by the middle-aged and the elderly generation. The common factors affecting life satisfaction of the three generations were physical as well as mental health, including self-esteem and depression. However, there were more factors different from generation to generation. As for the young adult, age, religion, and smoking were significant. As for the middle aged and the elderly, gender (male) and income were significant. Additionally, age, home-ownership and drinking were significant to the elderly generation. Conclusions: As there are differences as well as similarities among the three generations, policies for one-person households need to be devised considering these findings. For all generations, both physical and mental health policies are needed. For young adult strengthening social relations, providing decent jobs, and promoting anti-smoking policy are major agenda, and for the middle-aged and the elderly, assisting in social capital accumulation (for male), providing stable jobs and diverse leisure activities, and securing income. Additionally, for the elderly, expanding the social security system and housing support are needed.

• Journal of Digital Convergence
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• v.19 no.12
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• pp.225-230
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• 2021

The purpose of this study is to understand the mediating effect of grit in the relationship between academic achievement satisfaction and Academic Engagement of middle school students. To this end, a survey was conducted on 575 middle school students in Changwon, Gyeongsangnam-do, on academic achievement satisfaction, Academic Engagement, and grit. This research was carried out by hierarchical regression analysis was conducted to understand the correlation analysis and mediating effect between major variables, and The significance of the mediating effect was verified by the Sobel test. As a result of the study, First, correlation analysis revealed a positive correlation between academic achievement satisfaction, grit, and Academic Engagement. Second, regression analysis showed that both consistency of interest and perseverance of effort were partially mediated between academic achievement satisfaction and Academic Engagement. This means that academic achievement satisfaction not only directly affects middle school students' Academic Engagement, but also has an indirect effect through grit. Finally, In order to increase the academic enthusiasm of middle school students, learning counseling plans such as education and counseling plans to improve academic interest and develop various learning motivation improvement programs were discussed.

• Journal of Digital Convergence
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• v.19 no.10
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• pp.247-252
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• 2021

The purpose of this study is to understand the mediating effect of grit in the relationship between academic achievement satisfaction and academic helplessness of middle school students. To this end, a survey was conducted on 575 middle school students in Changwon, Gyeongsangnam-do, on academic achievement satisfaction, academic helplessness, and grit. This research was carried out by hierarchical regression analysis was conducted to understand the correlation analysis and mediating effect between major variables, and verified by Sobel test. As a result of the study, First, correlation analysis revealed a positive correlation between academic achievement satisfaction, grit, and academic helplessness. Second, regression analysis showed that both perseverance of effort and consistency of interest were partially mediated between academic achievement satisfaction and academic helplessness. This means that academic achievement satisfaction not only directly affects middle school students' academic helplessness, but also has an indirect effect through grit. Finally, a learning counseling plans (Self-analysis program and Environmental control program) was discussed to reduce the academic helplessness of middle school students.

• Journal of Digital Convergence
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• v.19 no.10
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• pp.287-293
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• 2021

Recently, public certificates issued by nationally-recognized certification bodies have been abolished, and internet companies have issued their own common certificates as certification authority. The Electronic Signature Act was amended in a way to assign responsibility to Internet companies. As the use of a joint certificate issued by Internet companies as a certification authority is allowed, it is expected that the fraud damage caused by the theft of public key certificates will increase. We propose an authentication model that can be used in a security gateway that combines PKI with a blockchain with integrity and security. and to evaluate its practicality, we evaluated the security of the authentication model using Sugeno's hierarchical fuzzy integral, an evaluation method that excludes human subjectivity and importance degree using Delphi method by expert group. The blockchain-based joint certificate is expected to be used as a base technology for services that prevent reckless issuance and misuse of public certificates, and secure security and convenience.

• Journal of Digital Convergence
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• v.19 no.10
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• pp.509-519
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• 2021

The purpose of this study is to understand the mediating effect of self-leadership in the process of understanding the effects of nursing job performance and job satisfaction in the nursing work environment perceived by nurses. In this study, nurses who worked for more than one year at three general hospitals located in Province A. Total of 225 data were used for the final analysis. Date analyzed using the SPSS 22.0 program by t-test, ANOVA, Pearson's correlation coefficient and hierarchical regression analysis. Self-leadership was found to play a partial mediating role in the relationship between nursing work environment and nursing job performance(z=4.30, p<.001) and between nursing work environment and job satisfaction(z=3.70, p<.001). Therefore, in order to improve nursing job performance and job satisfaction, it will be necessary to establish a management plan that can improve the nursing work environment and improve self-leadership.

• Journal of Convergence for Information Technology
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• v.11 no.9
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• pp.201-207
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• 2021

This study investigated the effects of self-esteem on the depression of baby boomer and eco-boomer generation (the children of baby boomers) living alone. It was identified from the point of view of comparison between the two groups. Using the 15th data of the 2020 Korea Welfare Panel, an independent sample t-test and hierarchical regression analysis were conducted with the data of baby boomers who live alone (born in 1955-1963) and eco-boomers who live alone (born in 1979-1992). The results of this study show that baby boomers who live alone had lower levels of education, income, and health condition than the eco-boomers who live alone, and had higher level of depression, but relatively lower level of self-esteem. In both groups, self-esteem had an effect on depression, but it was confirmed that the influence was greater in the group of baby boomers (Adjusted R2 .259) than in eco-boomers (Adjusted R2 .083). Based on the results of this study, practical and policy alternatives were suggested to prevent the depression among middle-aged, elderly people, and young adults who live alone.

• Journal of the Korea Convergence Society
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• v.12 no.9
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• pp.205-214
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• 2021

The purpose of this Convergence study was to provide basic data to prevent and intervene in depression of the young adult by examining the effect of COVID-19 on depression in single-person households, focusing on gender differences. The research was conducted with 198 male and 218 female young adults were sampled from the Seoul Welfare Survey(2020) and data were analyzed through hierarchical regression analysis. As a result of the analysis, negative changes in employment, income, and emotions due to Corona significantly increased the level of depression among young people. And the effects of COVID-19 sub-factors were different between male and female. Based on result, clinical and policy implications were suggested for managing with depression among youth in our society in consideration of gender differences in crisis situations such as COVID-19.