• The Journal of the Korea Contents Association
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• v.17 no.2
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• pp.404-414
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• 2017

With the development of smartphones and online social networks, users produce a lot of contents and share them with each other. Therefore, users spend time by viewing or receiving the contents they do not want. In order to solve such problems, schemes for recommending useful contents have been actively studied. In this paper, we propose a contents recommendation scheme using collaborative filtering for users on online social networks. The proposed scheme consider a user trust in order to remove user data that lower the accuracy of recommendation. The user trust is derived by analyzing the user activity of online social network. For evaluating the user trust from various points of view, we collect user activities that have not been used in conventional techniques. It is shown through performance evaluation that the proposed scheme outperforms the existing scheme.

• Journal of Korean Academy of Nursing Administration
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• v.9 no.1
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• pp.129-139
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• 2003

Purpose : The purpose of this study is to investigate the actual condition and recognition about social service activity(SSA) of nurses. Methods : This is a descriptive study. The data were collected by a structured questionare from July 15 to 31, 2002. The questionares were sent to 711 nurses of 38 hospitals, and 664 cases were returned. The answer rate is 93.4%. The data were analyzed by SPSS 11.0. Results : 1. 71.0% nurses had a SSA experience during university, but only 14.2% nurses are participated in SSA now. 2. In the case of having an experience, 56.0% nurses participated in SSA under 1 year, 69.5% nurses didn't support the service costs. 3. In the case of not having experience, the main reason why they didn't participate in is to lack of opportunity. 4. 91.1% nurses recognize the necessity of SSA and 99.5% nurses agree with the necessity of operation system. 82.9% nurses approve the cooperation system among the regions. 87.2% nurses have an intension to participate in SSA when the cooperation system is set up. Conclusion : It need to set up the social service operating system among the regions, and encourage nurse to participate in the SSA.

• The Journal of Information Systems
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• v.29 no.2
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• pp.221-242
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• 2020

Purpose This study collects data of the recently activated online black market and analyzes it to present a specific method for preparing for a hacking attack. This study aims to make safe from the cyber attacks, including hacking, from the perspective of individuals and businesses by closely analyzing hacking methods and tools in a situation where they are easily shared. Design/methodology/approach To prepare for the hacking attack through the online black market, this study uses the routine activity theory to identify the opportunity factors of the hacking attack. Based on this, text mining and social network techniques are applied to reveal the most dangerous areas of security. It finds out suitable targets in routine activity theory through text mining techniques and motivated offenders through social network analysis. Lastly, the absence of guardians and the parts required by guardians are extracted using both analysis techniques simultaneously. Findings As a result of text mining, there was a large supply of hacking gift cards, and the demand to attack sites such as Amazon and Netflix was very high. In addition, interest in accounts and combos was in high demand and supply. As a result of social network analysis, users who actively share hacking information and tools can be identified. When these two analyzes were synthesized, it was found that specialized managers are required in the areas of proxy, maker and many managers are required for the buyer network, and skilled managers are required for the seller network.

• Journal of Families and Better Life
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• v.7 no.2
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• pp.15-30
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• 1989

This study deals with the following problems about leisure activity of young people and leisure guidance of mothers, (1) Leisure activity of children by the independent variables, (2) Leisure guidance of mothers by the independent variables. (3) The relation between leisure guidance of mothers and leisure activity of young people. This research used the questionaire survey. The subjects were 830 couples of mother and pupil (pupils of 4, 5 and t grades in six primary school in Kwang-Ju city). The statistics used for data analysis were percentage, t, F-test, X2. The results of this study are summarized as follows; (1) Boys and girls average leisure hours: week days…2 hour, saturday…3 hours, Sunday and holiday…4.5 hours, the school vacation…6.2 hours. And leisure activity showed the significant difference in sex, age, educational level, family form (p 0.001, p 0.05, p 0.010). Generally, they had social & amusing leisure activity. And a hindrance cause of leisure activ ty is due to hard working in learning practice. (2) The necessity of leisure activity showed higher in the aged mother and high educated mother, lower in the poor family. And guidance content showed the significant difference in sex of children(p 0.001), educational level of parents(p 0.05). Actually mothers wanted intellectual leisure activity. (3) The relation between the leisure activity pattern desired by leisure activity of mothers and children pattern showed that mothers demanded the various patterns, but children wanted social & amusing leisure activities mainly. Only children's patterns agreed with mothers in the artistic, intellectual, activities on Saturday and during the vacation. And the relation between mothers satisfaction degree in the leisure activity of children and children's satisfaction degree showed the significant difference (p 0.05). Children's satisfaction degree is high, irrespective of mothers satisfaction degree.

• Research in Community and Public Health Nursing
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• v.28 no.4
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• pp.410-420
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• 2017

Purpose: This study was to identify factors explaining health empowerment of older adults with high-risk of cardio-cerebrovascular diseases. Methods: Using a structured questionnaire, data were collected from 148 older adults residing in two areas who have one or more of the following diseases; hypertension, diabetes mellitus, hyperlipidemia, and atherosclerosis. Data were analyzed using descriptive statistics, independent t-test, analysis of variance (ANOVA), Pearson correlation analysis, and hierarchical multiple regression. Results: Health empowerment had a positive correlation with health literacy and social support. Perceived health status and social activity participation showed significant contribution in explaining health empowerment. Conclusion: This study showed that enhancing perceived health status and social activity participation are vital in an effort to improve health empowerment of the population. Main findings of this study can contribute to developing health empowerment interventions to improve health behavior practices of the older adults.

• The Korean Journal of Health Service Management
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• v.7 no.3
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• pp.275-286
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• 2013

To identify the prevalence and its influencing factors on depression among elderly vulnerable people in one urban community. This study used data from 381 of elderly vulnerable people in the community. The prevalence of depression was found to be 51.97%. Multivariate logistic regression analysis shows that depression was more prevalent as people in female gender; people with lower self-esteem compared to those with higher self-esteem; in elderly who perceived lower social support compared to those who perceived higher social support; and in the older adults with limitation in instrumental activity of daily living. The finding of a significant association between gender difference; self-esteem; perceived social support, and limitation in instrumental activity of daily living and occurrence of depression expected to promote the screening strategy for elderly at risk of depression in Korean community.

• Asian Pacific Journal of Cancer Prevention
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• v.13 no.1
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• pp.49-56
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• 2012

Objective: This study was an attempt to identify associations between health behavior, such as smoking, alcohol consumption, healthy diet, and physical activity, and psychosocial factors. Methods: This crosssectional study was conducted among 1,500 participants aged between 30 and 69 years, selected from a population-based database in October 2009 through multiple-stratified random sampling. Information was collected about the participants' smoking and drinking habits, dietary behavior, level of physical activity, stress, coping strategies, impulsiveness, personality, social support, sense of coherence, self-efficacy, health communication, and sociodemographics. Results: Agreeableness, as a personality trait, was negatively associated with smoking and a healthy diet, while extraversion was positively associated with drinking. The tendency to consume a healthy diet decreased in individuals with perceived higher stress, whereas it increased in individuals who had access to greater social support. Self-efficacy was found to be a strong predictor of all health behaviors. Provider-patient communication and physical environment were important factors in promoting positive healthy behavior, such as consumption of a healthy diet and taking regular exercise. Conclusions: Psychosocial factors influence individuals' smoking and drinking habits, dietary intake, and exercise patterns.

• Journal of the Korea Convergence Society
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• v.11 no.4
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• pp.143-149
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• 2020

Many users enjoy a location-based augmented reality game such as Pokémon GO. From the perspective of attachment, this paper investigated the antecedents of Pokémon GO use. A total of 182 responses from Pokemon Go users was collected through an online survey. The result of regression analysis showed that attitude toward game characters, social interaction, competition, and physical activity increased attachment to game. Attention switching, however, decreased attachment to the game. This study suggested that attachment to mobile augmented games could be achieved through social interaction, competition, and physical activity. Implications for researchers and practitioners were discussed.

• Korean Journal of Human Ecology
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• v.20 no.3
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• pp.533-544
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• 2011

The purpose of this study was to investigate the effect of different types of leisure activities' on the satisfaction and psychological well-being of primary school students. The subjects of this study consisted of 467(boys=191, girls=276) primary school students. The data was analyzed by one way ANOVA, factor analysis, Chi-square analysis, correlation analysis and multi-regression analysis. The main findings of this were as follows: first, there were statistically significant differences in the kinds of activities participated in according to gender. Second, among of the subscale of leisure satisfaction, boys showed higher scores in more education and physical satisfaction than girls, and in the subscale of psychological well-being, boys indicated a higher score in flow and happiness than girls. Third, there were significant differences in leisure satisfaction and psychological well-being in the types of leisure activity. Fourth, the participation motivation of leisure activity statistically influenced psychological well-being. Fifth, leisure satisfaction partially influenced on psychological well-being. Social and environmental satisfaction significantly influenced flow. Education and social satisfaction significantly influenced happiness and psychological well-being.

• The Journal of the Korea Contents Association
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• v.14 no.12
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• pp.674-682
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• 2014

The personality in Marx's philosophy can be defined as an 'activity on the basis of social relations'. This concept suggests two significant implications to the difference of sexual identity between the sexes. First, according to Marx's philosophy the personality is partially influenced by the ideology. Freud's theory of Oedipus is founded on the patriarchal culture including the ideology. Freud's concept of personality ignores that aspect. That's why Freud's theory of Oedipus complex can be criticized. This is because of his ignorance of the affecting power of male chauvinism in patriarchal society. Second, more importantly and definitely, the difference of activity, especially labor, that is, male's social labor and female's private labor, has influenced the difference of the personality of both sexes.