• The Journal of the Korea Contents Association
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• v.18 no.9
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• pp.284-293
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• 2018

This study aimed to examine the influences of winning money from betting games and gambling environments on problem gambling among adolescents in South Korea, with particular attention to gender differences in the influences. This study performed a series of regression analyses by using a sample of 14,008 adolescents from the 2015 Survey on Youth Gambling Problems. The findings are as follows. First, winning money from betting games was associated with higher likelihood of doing problem gambling among adolescents. Second, living in a neighborhood with gamblers or gambling places was associated with higher likelihood of doing problem gambling among adolescents. Third, the influence of winning money from betting games on problem gambling was more pronounced for male adolescents. Fourth, there were no gender differences in the influence of living in a neighborhood with gamblers or gambling places on problem gambling. Based on the findings, implications for addressing problem gambling among adolescents were discussed.

• Korean Journal of Health Education and Promotion
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• v.29 no.4
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• pp.15-28
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• 2012

Objective: This paper aims to describe health promotion (HP) research according to HP activities, strategies, target population, and settings, and to explore challenges for HP to reflect principles and values. Methods: A content analysis was employed for all research reports funded by the Korea Health Promotion Foundation from 2005 to 2011. Content analysis was conducted according to the HP activities and strategies as mentioned in the Ottawa Charter, and by target population and setting. Challenges for HP research were explored by priority actions suggested by the International Union for Health Promotion and Education. Results: The total number of research was 384. The most popular topic was on HP actions for reorienting health services, followed by developing personal skills, creating supportive environments, building healthy public policy, and strengthening community actions. Research focusing on enabling strategies was most dominant among the HP strategies, while both advocating and mediating strategies were unlikely to be studied. An even distribution was found across target populations. The most popular setting was communities, followed by workplaces and schools. Conclusion: HP research tends to be anchored on bio-medical, individualized, and behavioral perspectives. A discussion was made to overcome this tendency by employing HP in social sciences theory and methods.

• Journal of Convergence Society for SMB
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• v.4 no.4
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• pp.19-23
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• 2014

Group communication is becoming increasingly popular in Internet applications such as videoconferences, online chatting programs, games, and gambling. For secure communications, the integrity of messages, member authentication, and confidentiality must be provided among group members. To maintain message integrity, all group members use the Group Key (GK) for encrypting and decrypting messages while providing enough security to protect against passive attacks. Tree-based Group Diffie-Hellman (TGDH) is an efficient group key agreement protocol to generate the GK. TGDH assumes all members have an equal computing power. One of the characteristics of distributed computing and grid environments is heterogeneity; the member can be at a workstation, a laptop or even a mobile computer. Member reordering in the TDGH protocol could potentially lead to an improved protocol; such reordering should capture the heterogeneity of the network as well as latency. This research investigates dynamic reordering mechanisms to consider not only the overhead involved but also the scalability of the proposed protocol.