• The Journal of the Convergence on Culture Technology
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• v.7 no.3
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• pp.605-608
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• 2021

Lily is one of the most important 5 cut flowers in international flower market and lilies are distributed in Asia, Eurasia and North America. To develop a new lily cultivar, in addition to hybridization, mutation and selection methods, biotechnological techniques including tissue culture are also required. Establishment of tissue culture system is one of the requirement for the breeding program in Lily. Among many fields of plant tissue culture, establishment of regeneration system via embryogenic calluses are studied in many crops. In this study, research was carried out to decide the proper concentration of picloram which is used for the induction of embryogenic calluses. As a result, 3 different types of callused were observed after 3-4 weeks. They were CEC (compact embryogenic callus), FEC (friable embryogenic callus) and white callus type. 1.0 mg /l of picloram showed the best result for the production of embryogenic callus, however, due to its higher rate of browning in this concentration, 0.75 mg/l of picloram was selected as a proper concentration of picloram for the induction of CEC and FEC in Lily. These results can be contributed to the establishment of both regeneration system and mass propagation in lily in the future.

• The Journal of the Convergence on Culture Technology
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• v.7 no.3
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• pp.509-515
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• 2021

This study analyzes the efficient floor layout plan of classrooms for securing evacuation stability in school in case of fire by using the Pathfinder simulation program. Efficient evacuation methods and safety were evaluated by analyzing REST (Required Safe Egress Time) according to the allocation of personnel by floor targeting a high school 5-story building equipped with a ramp and stairs. The current status of personnel assignments exceeded the Required Safe Egress Time(RSET), resulting in a problem with evacuation safety. When students were placed on the 3rd, 4th, and 5th floors, the result was that the time exceeded RSET the most. When students were placed on the 1st, 2nd, and 3rd floors, the result was that they completed evacuation in the shortest time, less than RSET. In the current state, when evacuation was guided by designating an evacuation exit depending on the location, the result of shortening RSET was obtained. As a result, it is effective to put the students on the lower floors when placing students in high-rise school buildings in terms of evacuation safety, and in the preliminary training, it is required to designate evacuation exits so that they can use the nearest exit for each location in case of a fire. As a future research project, additional research is needed on the RSET when a fire occurs in a specific location according to whether the automatic fire door at that location is opened or closed.

• Journal of Digital Convergence
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• v.20 no.4
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• pp.433-441
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• 2022

The purpose of this study was to identify the moderated effects of emotional intelligence on the relationship between academic stress and smartphone addiction among high school students. Subjects were 207 associate high school students. The data were collected using self -report questionnaire from December 1 to December 23, 2019. Data were analyzed by descriptive statistics, t-test, ANOVA, pearson correlation and hierarchical multiple regression with SPSS/WIN 23. Mean point of academic stress(5 point scale) was 2.75, emotional intelligence(5 point scale) was 3.63 and smartphone addiction(4 point scale) was 2.18. Academic stress were negative correlation with emotional intelligence(r=-.15, p =.030) and positive correlation with smartphone addiction(r=.25, p<.001). Emotional intelligence were negative correlation with smartphone addiction(r=-.25, p<.001). Emotional intelligence has been shown to modulate the relationship between academic stress and smartphone addiction(F=10.45. p<.001) Therefore, to decrease the academic stress and smartphone addiction of high school students, It is necessary to develop the program for increase emotional intelligence of high school students.

• Parasites, Hosts and Diseases
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• v.59 no.6
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• pp.607-613
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• 2021

Soil-transmitted helminth (STH) infections are still a considerable challenge in Myanmar. We undertook a control program for STH infections (especially Trichuris trichiura) among schoolchildren in Myanmar using mass drug administration (MDA) and health education. Around 1,700 schoolchildren from 15 primary schools in 3 suburban districts (Shwe Pyi Thar, Twantay, and Kyauktan) of the Yangon Region were subjected in this study during 2017-2019. All of the schoolchildren in each school were orally administered albendazole (400 mg in a single dose) 2, 3, and 4 times a year in 2017, 2018, and 2019, respectively. The results revealed that the egg positive rate of any intestinal helminths (including STH) was reduced from 37.6% (649/1,724) in 2017 to 22.8% (352/1,542) in 2019. The egg positive rate of Ascaris lumbricoides was decreased remarkably from 23.3% (402/1,724) in 2017 to 3.6% (56/1,542) in 2019. However, that of T. trichiura was only slightly reduced from 26.9% (464/1,724) in 2017 to 20.2% (312/1,542) in 2019. The intensity of infection with A. lumbricoides and T. trichiura was both more or less reduced, and the proportion of light infection cases with A. lumbricoides and T. trichiura increased from 35.6% in 2017 to 64.3% in 2019 and from 70.3% in 2017 to 81.7% in 2019, respectively. The results indicated that repeated MDAs (2-4 times a year for 3 years) using albendazole on schoolchildren in Myanmar failed to control T. trichiura infection. For a successful control of trichuriasis in Myanmar, new MDA strategies, using a modified albendazole regimen (multiple daily doses for 2 or 3 days) or an alternative anthelmintic drug, such as oxantel pamoate, is strongly recommended.

• The Journal of the Convergence on Culture Technology
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• v.7 no.4
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• pp.211-225
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• 2021

The purpose of this study was to investigate the effect of academic self-efficacy, task value, behavioral participation, cognitive participation, emotional participation, and initiative participation on learning satisfaction in 462 college students who took a flip learning class. Results, As for the direct effect of variables affecting learning satisfaction, behavioral participation was the largest factor, followed by initiative participation, task value, emotional participation, and academic self-efficacy. These variables explained 86% of learning satisfaction. Academic self-efficacy and task value had an indirect effect on learning satisfaction through behavioral, emotional, and proactive participation. In the multi-group moderating effect with the upper-middle class (B+ or higher) and the lower-middle class (below B) group as the moderating variables, there was a partial moderating effect because the path coefficients of leading participation and learning satisfaction differed between the groups. It is necessary to seek various ways to increase the degree of participation in learning and to develop an intervention strategy through a program tailored to each individual.

• Journal of Digital Convergence
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• v.20 no.5
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• pp.11-21
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• 2022

The purpose of this study is to analyze the moderating effect of social support on the effect of the use of social services by the elderly with disabilities on life satisfaction.To this end, the 15th data of the Korean Welfare Panel 2020 were used to verify the characteristics, correlation, and multiple regression analysis of variables related to life satisfaction. The SPSS WIN 25.0 program was used. The survey subjects extracted 684 elderly people with disabilities aged 65 or older, and the use of welfare services was divided into income Service, health Service, home welfare Service, and social participation Service, and the analysis results are as follows. First, it was found that the experience of using welfare services for the elderly with disabilities had a positive (+) effect on life satisfaction. Second, social support showed a moderating effect on the effect of using welfare services for the elderly with disabilities on life satisfaction. Through these results, the necessity of practical intervention measures and development of various programs in social welfare policies that can improve the quality of welfare services for the elderly with disabilities and increase life satisfaction through various social support was suggested.

• Journal of Internet of Things and Convergence
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• v.8 no.5
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• pp.119-125
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• 2022

With the recent increase in dementia patients due to aging, measures to prevent their wandering behavior and disappearance are urgently needed. To solve this problem, various authentication methods and location detection techniques have been introduced, but the security problem of personal authentication and a system that can check indoor and outdoor overall was lacking. In order to solve this problem, various authentication methods and location detection techniques have been introduced, but it was difficult to find a system that can check the security problem of personal authentication and indoor/outdoor overall. In this study, we intend to propose a system that can identify personal authentication, basic health status, and overall location indoors and outdoors by using wristband-type wearable devices in a private blockchain environment. In this system, personal authentication uses ECG, which is difficult to forge and highly personally identifiable, Bluetooth beacon that is easy to use with low power, non-contact and automatic transmission and reception indoors, and DGPS that corrects the pseudorange error of GPS satellites outdoors. It is intended to detect wandering behavior and abnormal signs by locating the patient. Through this, it is intended to contribute to the prompt response and prevention of disappearance in case of wandering behavior and abnormal symptoms of dementia patients living at home or in nursing homes.

• Journal of Digital Convergence
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• v.19 no.5
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• pp.423-432
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• 2021

The purpose of this study is to investigate the effect of role recognition of students participating in middle school soccer club activities applying sports education model on responsibility and self-directed learning. In order to achieve this purpose, 410 samples were selected from male students based in Busan using the convenience sampling method. Among them, and 370 data were finally verified through frequency analysis, exploratory factor analysis, Cronbach's α coefficient calculation, and correlation analysis using the SPS statistics 25.0 program. Finally, a regression analysis was performed for hypothesis testing, and the results were as follows. First, the awareness of the role of the student participating in middle school soccer club activities, which applied the sports education model, was found to have a positive effect in part on the sense of responsibility. Second, the role recognition of students participating in middle school soccer club activities, which applied the sports education model, was found to have a partial positive influence on self-directed learning. Finally, the responsibility of students participating in middle school soccer club activities, which applied the sports education model, was found to have a positive effect on self-directed learning in part. Therefore, physical education teachers should ensure that students can choose the right roles for themselves through various role experiences in soccer classes so that more active learning can take place.

• Journal of Industrial Convergence
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• v.20 no.9
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• pp.91-98
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• 2022

This study was conducted to investigate the effect on subjective well-being and depression of the elderly with chronic diseases. Using data from the 15th Korea Welfare Panel in 2020, 3,910 people who responded that they had chronic diseases over the age of 65 were analyzed with stepwise regressions. As a result, the factors affecting the subjective well-being of the elderly with chronic diseases were in the order of satisfaction with leisure life, subjective health status, satisfaction with children relationship, satisfaction with family income, satisfaction with spouse. The explanatory power of this model was 32.0% (F=351.44 p<.001). And also, factors affecting depression were in order of subjective health status, satisfaction with spouse, satisfaction with social relationship, satisfaction with children relationship, satisfaction with leisure life, and satisfaction with family income. The explanatory power of this model was 21.4% (F=178.59, p<.001). Therefore, policy systems to support leisure life of the elderly with chronic disease and measures to induce participation in programs using community resources are needed. And health management programs and institutional support to improve subjective health status are also needed. In addition, it is expected that economic support at the national policy level and various program execution strategies and support personnel will be secured at the community level.

• The Journal of the Convergence on Culture Technology
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• v.7 no.4
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• pp.711-719
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• 2021

EBS has been producing numerous educational contents with traditional virtual studio production systems since the early 2000s and applied AR video production system in October 2020, twenty-years after. Although the basic concept of synthesizing graphic elements and actual image in real time by tracking camera movement and lens information is similar to the previous one but the newly applied AR video production system contains some of advanced technologies that are improved over the previous ones. Marker tracking technology that enables camera movement free and position tracking has been applied that can track the location stably, and the operating software has been applied with Unreal Engine, one of the representative graphic engines used in computer game production, therefore the system's rendering burden has been reduced, enabling high-quality and real-time graphic effects. This system is installed on a crane camera that is mainly used in a crane shot at the live broadcasting studio and applied for live broadcasting programs for children and some of the videos such as program introductions and quiz events that used to be expressed in 2D graphics were converted to 3D AR videos which has been enhanced. This paper covers the effect of introduction and application of the AR video production system on EBS content production and the future development direction and possibility.