• Journal of Christian Education in Korea
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• v.74
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• pp.273-294
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• 2023

The purpose of this study is to use K-MOOC, which has limitations in utilization because it is centered on theory delivery, to derive tasks to activate the teaching methods of instructors, and to implement the derived tasks using the metaverse platform. to develop a prototype. According to the purpose of the study, the study was conducted as follows. First, from October 4 to November 15, 2022, a Delphi survey was conducted on 21 experts with experience of consulting, research, class development, and operation related to the K-MOOC project. Second, in order to realize the tasks in the teaching method field derived from the Delphi survey, matching with the teaching method class model elements to result of Delphi survey was applied was carried out. Finally, based on the results of expert Delphi and the elements of the class model applicable to the metaverse platform, a teaching method was developed. Through the process of the study, a total of 16 detailed items were derived for the teaching method-related tasks for the activation of K-MOOC: support strategic tasks, teaching method competency, aspect of class design, evaluation and sharing of learning outcomes. By applying the metaverse, the teaching model elements for K-MOOC revitalization were derived from four categories: self-directed repetition, individualized problem solving, practice opportunity expansion, and immediate feedback, and matched with the first 16 detailed items. A four-step teaching model was completed: course attendance (step 1), mission analysis by individual level (step 2), sharing of mission solutions (step 3), and mission evaluation and feedback (step 4). Through the results of this study, the possibility of using the metaverse as a teaching practice platform was confirmed even in terms of the introduction and development of specialized techniques.

• The Korean Journal of Franchise Management
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• v.2 no.1
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• pp.100-118
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• 2011

Since 1990, income has been grown rapidly in Korea. Thus, concerns of environmental pollution and health have been increased among Korea's consumers. As a result of this concern, demand for safe food and agricultural products has been growing in Korea. Recently, purchasing patterns of Korea's consumers have been changed as Korea's society has changed to an aging society, growth of unmarried person, and low birthrate. Korea's consumers prefer to buy only volume that they need. Thus, the volume of agricultural products that they purchase became small. Therefore, retailers should reflect such needs of consumers to their business. The purpose of this study is to build up new strategies in order to make a high profit through customer's satisfaction when selling agricultural products. Using literature review, this study has drawn results. The results of this study is that retailers should lay products with brand in their store and establish trust with customers in oder to make loyal customers. In addition, retailers should prepare individual package of agricultural products for sales of a small volume to keep pace with social changes.

• The Korean Journal of Franchise Management
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• v.5 no.1
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• pp.85-108
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• 2014

This study provides the information about size, financial structure, profitability and growth of franchisors using financial data(asset, liability, equity, sales volume, operating income and net income) in uniform franchise offering circular of fair trade commission. The data were collected from 1,050 franchisors in various business fields: fast food, family restaurant, bakery, agriculture & fishery and liquor shop in the uniform franchise offering circular in 2012 and 2011. Results of this study are as follows: For company size, median of total assets was KRW 675 million and the accumulated median assets rate was 0.48%, but the accumulated median company numbers were 49.9%, which showed small size. For financial structure, 525 companies were below 200% debt ratio, while 314 (29.9%) companies were in over 200% debt, and 211 (20.1%) companies were impaired in capital. These also showed financial structure was vulunerable. For profitability, median of ROA for total companies were only 4.72%, which showed low profitability. For growth, median of growth rate for sales were 7.57% per year, which showed mature industry. In overall, the results showed franchisors should improve their financial status.

• Korean Journal of Culture and Social Issue
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• v.19 no.3
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• pp.319-341
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• 2013

This study investigated the mediating effects of social support and coping on the relation between traumatic event type, posttraumatic growth and wisdom by the data from 247 adults by using path analysis. Besides, the difference of the level of posttraumatic growth and related variables between traumatic event type groups. At first, The results of the MANCOVA, person-related traumatic event group were higher than the non-personal traumatic event group in negative coping and trauma stress level, and lower in social support, positive coping, posttraumatic growth and wisdom. The path analysis results shows that traumatic event type was related to wisdom by mediate factors. Traumatic event type affected wisdom through social support, positive coping, posttraumatic growth. The significant mediators were social support, positive coping, posttraumatic growth. Negative coping was not a significant mediator between event type and posttraumatic growth. The results show that non-personal traumatic event group are tends to have high level of social support, positive coping, posttraumatic growth, and wisdom. In the end, we described that the implication and the limitation of this study and suggestions for following studies.

• Korean Journal of Culture and Social Issue
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• v.20 no.3
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• pp.263-280
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• 2014

The purpose of our study was to figure out the generation gap between adolescents group and parents group in the sub-dimensions of perceptions on online games, such as harmfulness and benefits of online games, impacts and values of online games, parent-adolescent relationship with regard to online game activities, and government regulation of online games. To this end, we conducted online survey targeting middle or high school students and parents with children attending middle or high school regarding the perceptions on online games. As a result, we identified the similarities and differences between adolescents and parents generation in the sub-dimensions of perceptions on online games. Especially, we found significant differences between adolescents and parents generation in the perceptions on violence and sociality of online games. This result shows that the generation gap in these two factors may cause the conflict between parents and adolescents with regard to online game activities. Also, we ascertained the significant generation gap in the perception on parent-adolescent relationship with regard to online game activities. This result implies that parent-adolescent relationship in the developmental process of adolescents in real life was reflected in the perception on parent-adolescent relationship with regard to online game activities. Our contributions are in specifying the generation gap in the sub-dimensions of the perceptions on online games and in identifying the main causes of the conflict between parents group and adolescent group with regard to online game activities.

• Korean Journal of Culture and Social Issue
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• v.17 no.3
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• pp.261-285
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• 2011

In our studies, We defined the concept of social reputation and aimed to estimate the effect of social reputation on likability, trust, preference of interpersonal relationship. To accomplish these goal, photographs of 12 persons(six young unmarried man, six young unmarried women) volunteered were shown to 60 raters, and the one male and one female pictures of scores of facial attractiveness are nearest to median were selected as experimental figures in preliminary study. After this, We asked 260 raters to assess likability, trust, preference of interpersonal relationship after showing raters the chosen pictures of man and woman and telling scenario of positive, negative reputation about these two persons. The outcomes showed that in both men and women, likability, trust, preference of persons who gained positive reputation were significantly higher than persons gained negative reputation. Facial attractiveness was effect on likability, trust, and preference, but effect size of reputation was much higher on likability, interpersonal preference, especially trust level. Also, in three-way ANCOVA results, Woman has showed higher likability and trust than man under the condition of good reputation in both woman was rater and object to be assessed, but on the contrary, likability, trust, and preference of woman were lower than man in either woman was rater or object to be judged under the bad reputation,. Lastly, this study's implications and limitations were discussed.

• Korean Journal of Culture and Social Issue
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• v.16 no.3
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• pp.241-265
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• 2010

This study reviewed the present state and differences of rehabilitation programs of the gambling addiction by comparing with other psychiatric disorder(including psychotic disability and alcohol addiction). This study also intended to suggest necessities, meanings and inherent fields of the rehabilitation in gambling addiction. First of all, the government and a few gambling industries run clinic centers for gamblers and their families, but have been lacked rehabilitation services for social comeback and adaptation or devaluated rehabilitation services than therapies. Gambling addict didn't have impairments of the cognitive function and their daily abilities was better than any other psychiatric disorders. But Damage of social role or function of gambling addiction was severe. And it is caused by nonadaptive nature of gambling behavior, personality/emotional change through gambling addiction process, and previous personality problem etc. There are many severe failure of social role and its attendant bankrupcy, family's problems and social poverty in gambling addiction, Therefore, important fields in the rehabilitation of gambling addiction should be services for basic social comeback support service, credit recovery support, monetary management, support of rehabilitation of family and vocational rehabilitation. Finally, the significance and critical points of the current study has been discussed as well.

• Journal of Korean Society of Disaster and Security
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• v.16 no.2
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• pp.1-13
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• 2023

As interest in urban safety has increased since COVID-19, various institutions have developed and used indicators that evaluate the safety city model. Yongsan-gu was ranked No. 1 in 2021 by Social Safety Index evaluation and was selected as the safest city in Korea. However, the Itaewon disaster in Yongsan-gu in 2022 caused many casualties. The study of indicators for evaluating cities' safety was necessary. This study aims to examine domestic and foreign safe city models and review the differences between each model and the indicators used to evaluate safe cities. As a result of collecting 11 safe city models and analyzing each evaluation index, safe city models can be classified into program-based safe city models, such as the World Health Organization's International safe community and the UN Office for Disaster Risk Reduction's International Safe city. Considering the diversification of threats to safety, it is reasonable to comprehensively consider digital security, health safety, infrastructure safety, personal safety, environmental safety, traffic safety, fire safety, crime safety, life safety, suicide, and infectious diseases when evaluating safe cities as evaluation parameters.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2023.04a
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• pp.49-49
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• 2023

본 실험은 콤부차의 발효시 에너지원으로 첨가되는 당(sucrose) 대신 꾸지뽕(Cudrania tricuspidata Bureau; silkworm thorn) 과일 발효액을 첨가하여 꾸지뽕-콤부차의 기능성을 구명하고자 하였다. 대조구인 콤부차는 끓여서 식힌 물 900mL에 홍차 2.4g을 넣어 한시간 동안 추출한 후 초기당도가 10°Bx가 되도록 sucrose를 첨가하였고, 처리구는 sucrose대신 꾸지뽕 과일 무게 대 sucrose의 비율을 1 대 0.9의 비율로 조제하여 발효시킨 꾸지뽕 발효액(당도 50°Bx)을 10°Bx가 되도록 희석하여 첨가하였다. 여기에 발효균인 SCOBY를 첨가한 후 실온에 3주간 보관하면서 1주일 간격으로 시료를 채취하여 총폴리페놀성 화합물 및 카테킨류 함량, 항산화 활성 및 인체 정상 폐세포주인 MRC-5와 폐암세포주인 A549의 세포 증식에 미치는 영향을 구명하였다. 발효 3주 동안 채취한 꾸지뽕-콤부차를 MRC-5 세포에 처리하였을 때 발효 2주까지는 꾸지뽕-콤부차가 대조구에 비해 약 10~30% 세포 증식효과를 보였고 발표 3주째에는 유사한 증식효과를 보였다. 폐암세포주 A549에 처리시에는 발효 2주째 대조구에 비해 낮은 증식율을 보였으나 그 차이는 크지 않았다. 이 결과는 꾸지뽕-콤부차가 인체 폐세포 증식을 촉진하나 폐암세포의 증식을 크게 억제하지는 않음을 의미한다. 총폴리페놀성화합물 함량은 대조구의 경우 발효기간이 경과함에 따라 증가하는 반면 꾸지뽕-콤부차는 조제직후 대조구에 비해 유의적으로 높은 함량을 보이다 서서히 감소하였는데 발효 2주째 대조구와 유사한 수준에 도달하였으며 3주째에는 대조구에 비해 낮은 함량을 보였다. 카테킨류(Epigallocatechin, Epigallocatechin gallate, 그리고 Epicatechin gallate, epicatechin)는 총 페놀성화합물과는 반대의 경향을 보였는데, 발표 2주까지는 꾸지뽕-콤부차의 함량이 유의적으로 높았다가 발표 3주째 크게 낮아졌다. 활성산소 제거능은 발효 2주째까지는 대조구에 비해 낮았으나 3주째 유의적으로 높아져 꾸지뽕-콤부차의 항산화활성은 카테킨류 함량에 비례함을 알 수 있었다. 기능성분 함량과 MRC-5 증식에 관한 상관분석시 총풀리페놀함량이 세포증식에 정의 상관관계를 나타내었다.

• The Journal of the Convergence on Culture Technology
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• v.9 no.6
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• pp.319-327
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• 2023

This study analyzes the risks of explosions of small LPG storage tanks installed at highway rest areas. For this purpose, the ranges of the effect of thermal radiation and overpressure caused by the BLEVE(Boiling Liquid Expansion Vapor Explosion)and VCE(Vapor Cloud Explosion) of a 2900-kg small LPG storage tank installed at highway rest areas were quantitatively evaluated by applying the Areal Location of Hazardous Atmospheres program. The ranges of influence of the derived explosion overpressure and thermal radiation were found to have a maximum radii of 336 m and 423 m, respectively. The study determined that those within 269 m could be severely injured by an explosion overpressure of 3.5 psi, and fatalities from thermal radiation of 10 kw/m² could occur within 192 m of the exploded storage tank. The safety management plan for the LPG storage tank was discussed while considering the auxiliary facilities of highway rest areas and the extent of the damage impact. These research results will help improve safety accident prevention regulations considering the environment and facilities of the rest areas as well as the safety management of small LPG storage tanks installed at highway rest areas.