• Korean Journal of Applied Biomechanics
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• v.21 no.3
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• pp.269-279
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• 2011

This study was analyzed the characteristics on the stability of posture while conducting a through two and half rotation technic of pench$\acute{e}$ in rhythmic gymnastics. Two rhythmical gymnastics player(LKH and SSJ) who is a member of the national team were selected, and for obtain the kinematic and kinetic variables were used a ProReflex MCU 240 infrared camera(Qualisys, Sweden) and a Type9286A force platform(Kistler, Switzerland). The mechanical factors were computed by using Visual3D program and Matlab R2009a. During the landing and rotation phase the results showed following characteristics; 1) In medial-lateral and horizontal displacement of the support foot, LKH showed smaller movement than SSJ, but SSJ showed smaller movement than LKH in swing foot. LKH showed bigger movement in medial-lateral axis of COP and vertical axis of COG, but SSJ showed bigger movement in horizontal axis of COP and medial-lateral axis of COG. 2) SSJ showed bigger maximum horizontal and vertical velocity at P1 and P2 than LKH. 3) In the inclination angle of COP and COG, SSJ showed smaller change than LKH, but within medial-lateral tilt of the shoulder, LKH performed rotation motion in horizontal position than SSJ. There was no differences in each force components during rotation, but on landing phase, the results showed a characteristic that SSJ exerted bigger breaking force and vertical force than LKH.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.2
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• pp.479-494
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• 2020

The purpose of this study is to systematically analyze through structural relationship analysis the relationship between excessive smartphone use by adolescents and school adaption. A questionnaire was administered to 866 elementary, middle and high school students who are using smartphones SEM was applied to the analysis with the following results. First, the relationship between excessive smartphone use and school adaptation was not significant. Second, the relationship between social support and excessive smartphone use had significant influence. Third, there is a significant influence in the relationship between self-control and excessive smartphone use. Fourth, social support and self-control of adolescents had a direct influence on school adaptation. Fifth, social support and self-control mediate the relationship between smartphone overuse and school adaptation. Therefore, increasing the adaptability of adolescents requires efforts to firm social support system by expanding autonomous sense or self-control personally and mutual support in the family.

• The Journal of Korean Society for School & Community Health Education
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• v.13 no.1
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• pp.77-87
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• 2012

This study is a descriptive paper addressing the relationship between test anxiety, self-esteem and the mental health levels of freshmen and third year students of Dental Hygienics. In late 2011, we received a total of 298 questionnaires from freshmen and third year Dental Hygienics students of three South Korean universities, located specifically in Seoul and Gyeonggi-do. The timing of this questionnaire was significant because it was one week prior to midterm examinations. The results were as follows:1. There was a statistically significant relationship between age (t=3.017, p<.001) and grade(t=2.665, p<0.05), subjective health status(t=27.513, p<.001). 2. The lower the participants' reported mental health in general, the higher their level of test anxiety (r=.565, p<.001), broken down into two subdivisions: cognitive text anxiety (r=526, p<.001) and emotional test anxiety (r=.534, p<.001). 3. When considering the factors that influence the general mental health of participants, there were age differences. For first year students, their subjeetive health status (${\ss}$=-.300, p<.001) and test anxiety (${\ss}$=.530, p<.001) were significant. For third year students, this was also true (subjective mental condition: ${\ss}$=-.242, p<.001 and test anxiety: ${\ss}$=.350, p<.001) but self-worth was also significant (${\ss}$=.377, p<.001). The results of this study suggest that the key factors that influence the mental health level of students Dental Hygienics are test anxiety, subjective appraisal of health level, and general self-worth. A systematic approach is therefore needed to improve students' mental health and reduce test anxiety. Health management programs which address and test students' physical health will also be important in improving student performance and welfare.

• Journal of Family Resource Management and Policy Review
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• v.18 no.3
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• pp.79-101
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• 2014

The main objective of this study is to explain the differences in intergenerational resource transfers among the middle-aged at various income levels. Analyses of data on financial resource transfers from the 2nd wave of the Korean Retirement and Income Study were conducted. The study sample consisted of 931 middle-aged individuals who had at least one living parent and one child. The data analysis methods were ${\chi}^2$ analysis, one-way analysis of variance(ANOVA), logistic regression analysis, and multiple regression analysis. Financial resource transfers are statistically significant factors explaining the preparation for later life and life satisfaction of middle-aged individuals. The empirical results reveal that the frequency of intergenerational financial transfers was significantly higher in high-income households than in middle- and low- income households. A comparison of high-, middle- and low-income households shows that financial resource transfers had a greater influence on the preparation for later life and life satisfaction of the middle-aged in middle-income households than in low- or high-income households. The level of life satisfaction was dependent upon to whom middle-aged individuals gave financial resources. In the middle-income group, the middle-aged who gave financial resources to their parents were more likely to have higher life satisfaction than those who did not. Receiving financial transfers from parents or children did not have a statistically significant impact on the life satisfaction of the middle-aged in any income-level group.

• The Journal of the Convergence on Culture Technology
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• v.6 no.3
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• pp.135-143
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• 2020

This study was attempted to grasp the negative emotions of college freshmen in the COVID-19 situation and how to cope with them. The survey was conducted online from April 6 to 13, 2020, and the results were analyzed using a total of 220 copies of the survey data, excluding insufficient surveys. As a result of the analysis, the subject's negative emotion was the most frustrating, and the average value was highest in the order of helplessness, anxiety, and anger. As a result of verifying the differences according to gender, it was found that anxiety, lethargy, anger, fear, and confusion all experience statistically significantly more women than men. As a result of analyzing the correlation between the negative emotion of the subject and the method for resolving the negative emotion, the helplessness was found to have a significant negative correlation with the activities of talking with family, friends, and acquaintances. Showed statistically significant positive correlation. Based on these results, some practical methods that can be applied in universities are suggested.

• Journal of the Korea Society of Computer and Information
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• v.22 no.12
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• pp.155-161
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• 2017

Recently, as the number of multicultural families and foreigners living in korea increase, the proportion of various types of families and middle-admitted youths is increasing. These youths are less educated than their domestic counterparts, and their conversation time with their family members is relatively weak. Therefore, there is a need for a specialized education system for education and socialization. Immigration background among middle-admitted adolescents, children arrived in korea regardless of their will, with socialization already in the country where they were born, it is a reality that various difficulties are experienced in the socialization of korea society about language, education, emotion and employment. For this reason, some of the migrant background youths are pointed out as a big problem of the multicultural society, which is 18% of the NEET(Not in Education, Employment or Training) classes, which are not educated and are not willing to find jobs or employment. Therefore, in this study, we identified the problems of middle-admitted children of multicultural families as the number of middle-admitted adolescents increased, and suggested the necessary ways for them to achieve rapid socialization and settlement in korea society. For this purpose, we analyzed the problem of education of middle-admitted children as a discriminative approach which is different from general support method for middle-admitted children presented in previous reaearch, since then, we have presented an alternative to carry out realistic, systematic and successful education considering the characteristics of the region centered on the middle-admitted youths of Gwangju city.

• Science of Emotion and Sensibility
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• v.13 no.4
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• pp.777-788
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• 2010

Early diagnosis of autism and intervention of medical treatment are very significant to develop specific social communication skill for children with autistic spectrum disorders (ASDs). But they have difficulties in medical treatment because of lack of a public welfare institution and special medical system. In particular, few children can access such treatment and the existing single-therapist clinics are inefficient with regard to cost and time. Therefore, new methods should be studied for developing various products, services, and systems for autistic children. This study discusses the potential use of an interactive design as assistive technology for such children. We utilize the experience gained in the collaborative design of the interactive therapy system (ITS). The key methods include a collaborative design with rapid interactive prototyping, heuristic evaluation, user-centered process, VR technology, tangible interface, and scenario-based contents. We applied these methods to the ITS and proved the efficiency of interactive design as an assistive technology through clinical experimentation.

• Journal of Korean society of Dental Hygiene
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• v.10 no.5
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• pp.861-876
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• 2010

Objectives : The purpose of this study is understanding the behavior of the laborer relating oral health. Oral health is one of the most important requirement in the healthy life of the laborer. Also it is important to supply the welfare of the people. Methods : For this purpose survey to 400 urban laborer was carried out with questionnaire from October to November, 2009. Among them, 346 available responses were analysed with SPSS 12.0 statistic package. Results : The major findings of the study were as follows:First, Monthly income of 76.6 % of the laborer investigated was below 2500,000 won. Second, 56.1 % of the laborer investigated has the experience to visit dental clinic in the last two years. Third, 35.6 % of the laborer investigated has no experience to visit dental clinic in the last three years. Fourth, The average number of absent days due to oral disease were 0.11 day in a year. Fifth, The average number of the days fail to finish the work of the day due to oral disease were 0.32 day in a year. Sixth, 56.5% of the laborer investigated had no experience of oral health education, because of having no chance. Seventh, Factory bulletin and internet service is preferred as the source of the information on the oral health education. Eighth, In order to improve the status of oral health of laborer, periodical oral health examination and oral health education is needed. Conclusions : In order to improve the oral health of laborer, better public health policy is required, and it is made from understanding the behavior of the laborer relating oral health.

• Journal of Korean society of Dental Hygiene
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• v.15 no.6
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• pp.1083-1090
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• 2015

Objectives: The purpose of the study is to investigate the influence of community oral hygiene program on oral hygiene practice behavior in children. Methods: Oral hygiene promotion program was performed in 23 community child centers in Seoul, Incheon and Gyeonggido. The study analyzed the effect of community oral hygiene promotion programs on the oral hygiene practice behavior in children from September to December, 2014. The trained dental hygienists in 23 public health centers and dental hygiene students participated in the oral hygiene promotion program for oral health examination and education for the children. The contents of the program was standardized and instructed to the team members. The individual improvement in children oral hygiene practice was assessed using PHP(patient hygiene performance) index score. Data were analyzed using SPSS 12.0 program. Results: After the program, children who stopped eating confectioneries and those eating once a day increased to 32.12% and 14.24%, respectively. Those eating more than four times a day were still high(32.44%), but it was a lower rate than before the program (p<0.001). The rate of toothbrushing of more than 2 to 3 times a day was 82.75% and it was higher than before the education (p<0.001). The knowledge level of children increased from 18.83% to 66.30%. The oral hygiene practice performance in children was highly improved. Conclusions: The four months duration of oral hygiene program remarkably improved the oral hygiene practice in the children. So the community health centers and welfare centers must cooperate and improve the children oral health promotion by developing the oral health promotion program.

• Journal of Families and Better Life
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• v.32 no.5
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• pp.163-178
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• 2014

The purpose of this study is to validate the mediating effects of anger expression types for anxiety on the violent behaviors of adolescent school violence offenders. For the purpose of this study, 114 adolescent school violence offenders and 178 general youths were selected. Through the structural equation model, the mediating effects of anger expression types that are manifested in the path of violent acts of adolescent school violence offenders and general youths are verified. The major findings of this study are as follows. First, for both groups, the same path of violent behavior through anger-in and anger-out was followed: youths repress anger when they have higher anxiety, and when too much anger is repressed, anger-out increases, which results in more violent behaviors. Second, the level of anxiety of adolescent school violence offenders has direct effect on the responsive violent behaviors while the level of anxiety of general youths does not have direct effect on violent behaviors. Third, although the anxiety of adolescent school violence offenders may increase violent behaviors through the paths of acting-in and acting-out, violent behaviors can be reduced by reducing anger-out. Therefore, to reduce the violent behaviors of adolescent school violence offenders, intervention is needed for those who repress their anger due to anxiety; professional education is also required for adolescent school violence offenders to help them control their anger.