• Human Ecology Research
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• v.57 no.3
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• pp.369-381
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• 2019

This research investigated the moderating effects of children's negative emotionality, activity and sociability on the relation between maternal parenting stress and children's behavior problems. Participants consisted of 1,667 preschool children from the fifth wave of the Panel Study on Korean Children. EAS was used to measure the children's temperament. Mothers reported parenting stress and children's behavior problems. The results revealed that the magnitude of association between relation between maternal parenting stress and children's behavior problems was greater for high levels of negative emotionality and activity as well as low levels of sociability. The results support a diathesis-stress model in which high negative emotionality, activity and low sociability confer vulnerability for preschool children in a high stress family.

• SUVANNABHUMI
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• v.10 no.1
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• pp.93-116
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• 2018

Under feudalism, besides imploring investiture, tribute is said to be one of the two most typical activities at the core of diplomatic relations between China and the region, in particular, Vietnam and Japan. By using the comparative method and interdisciplinary approach, the author shows that there are many differences between Vietnam and Japan with regards to tribute activity with China during the feudal period. For example, the start and end of China's tributary activities with Vietnam and Japan are not the same. The period of Japanese tributary activity was much more loosened than Vietnam. Vietnamese tributary relation was political, while Japan placed economic benefits as the main priority. In particular, the author also proved that although Japan and China had differences in behavior and level of dependence on the tributary activity of Vietnam, both Vietnam and Japan maintained independence and autonomy. Based on the historical, cultural, and geographical characteristics, as well as the position and force correlation of each country in relation to China, this article also explains the causes of these similarities and differences.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.6
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• pp.158-168
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• 2019

This study has researched and analyzed the relation among adolescents metabolic syndrome, dietary life, physical activity and mental health using $7^{th}$ National Nutrition Survey of $1^{st}$ year(2016) to provide the base data for the prevention of adolescent metabolic syndrome and the promotion of mental health. The subjects have been aimed at 13-18 year-old adolescents. The normal group consists of 201 males(56.4%) and 187 females(47.4%) and the adolescents with metabolic syndrome are composed of 9 males(56.4%) and 6 females(43.6%), totally 403 subjects. As a result of analyzing on the relation among adolescents' metabolic syndrome, dietary life, physical activity and mental health, the main influencing factors of metabolic syndrome are as follows. First, with regard to physical features, as BMI increases 1, the prevalence rate of metabolic syndrome multiplies 1.746 times. Second, when eating breakfast once to twice a week, the prevalence rate of metabolic syndrome decreases 0.87 times. Third, with regard to physical activity, as usual sitting hours a day increase 1 hour, the prevalence rate of metabolic syndrome multiplies 1.054 times. Fourth, the relation between metabolic syndrome and mental health of adolescents is not significant at all. Thus, the further study on metabolic syndrome focused on adolescents should be extended through the development of various variables of dietary life, physical activity and mental health focused on adolescents. In addition, the development of effective intervention program combining with dietary life, physical activity and mental health factors is necessary.

• Physical Therapy Korea
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• v.18 no.3
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• pp.59-66
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• 2011

The purpose of this study is to examine the activity ratios of global trunk muscles and local trunk muscles in relation to adjustments in the level of task difficulty while performing stability exercises in easily applied bridging lumbar stabilization exercise. Twenty healthy subjects performed bridging lumbar stabilization exercise while the level of task difficulty was plate was used in the same posture for all the exercises. EMG was used to examine the activity ratios of the global muscles and multifidus in relation to the level of task difficulty. Moreover, the activity ratios of the multifidus muscle, the erector spinae and the gluteus maximus muscle were measured. A one-way ANOVA with repeated measures was used, and a Bonferroni correction was conducted (${\alpha}$=.05). When the bridging lumbar stabilization exercise were performed at different difficulty levels, the activity of the multifidus muscle, which is a local muscle, was high in all three exercises. Also, compared to low intensity and intermediate intensity exercises, high intensity exercises showed more significant differences (${\alpha}$=.05). Among all the muscles, the multifidus showed the highest activity at intermediate intensity. Based on these results, we suggest that in the case of bridging lumbar stabilization exercise, low intensity or intermediate intensity exercises are more suitable and efficient for local muscle stabilization.

• Journal of the Korean Society of Marine Environment & Safety
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• v.15 no.2
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• pp.143-149
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• 2009

The marine leisure activities are specially increasing among the other leisure activities due to the improving of people's life quality and formation of people's values which pursuit the various life styles with the development of economy and society and operation the system of five working days per week. Among the various marine leisure activities, skin scuba diving is the mast prevalent activity, even though it doesn't have proper legal system in relation to the safety of the activity. Thus, this paper studies the various legal issues in relation to skin scuba diving to improve the safety and activation of the activity, and identifies the problems and proposes the ways of improving it.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2012.05a
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• pp.819-822
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• 2012

This study is about social network services for tourism. In detail, the relationship among relation oriented activities, relation value, commitment and loyalty is analyzed in this paper.

• Proceedings of the KSRS Conference
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• v.1
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• pp.153-153
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• 2006

• Proceedings of the Korean Nutrition Society Conference
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• 2002.11a
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• pp.124-124
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• 2002

• Journal of the Korean Society of Clothing and Textiles
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• v.17 no.2
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• pp.197-206
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• 1993

We studied relation between the clothing pressure applied by foundations(waist nipper, girdle, body suit) on the waist of bodies and muscular activity, feeling of tightness. The main results were summerized as follows ; 1. Clothing pressure applied by foundations was high in order of girdle>waist nipper>body suit, also clothing pressure was higher back than front and side, sitting on the chair than standing posture, ventral flection than repose. Individual differences, even if size of body was equal, were shown in clothing pressure applied by foundations with subcutaneous fat's amount in measuring region. 2. The muscular activity of rectus abdominis than obliquus externus abdominis was more affected by foundations in all kinds of postures and motions. Amplitude of electromyogram was high sitting on the chair than standing posture, but there was little difference with motion variation. The wearing girdle strongly affected on the muscular activities of rectus abdominis and obliquus externus abdominis as compared with waist nipper and body suit. 3. The value for feeling of tightness by wearing waist nipper was higher than girdle and body suit. Also the case when sitting on the chair and ventral flection, the value for feeling of tightness was high. When the foundations were on the body, most tightened on the region of the body was anterior abdominal region.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.51 no.6
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• pp.544-553
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• 2006

In order to assess antioxidant capacity in relation to seed traits of rice (Oryza sativa L.), ninety-six varieties were examined for antioxidative activity of brown rice grain using superoxide dismutase (SOD), 1,1-diphenyl-2-picrylhydrazyl (DPPH), and thiobarbituric acid (TBA) assays. Overall, average total activities measured by the three methods were of very wide range between 64% and 13%. Significant differences were noted depending on the variety and evaluation method. Rice varieties with foreign origin, middle maturity, colored hulls, and colorless awn exhibited statistically significant higher total activity. As for the measurements, total activity was significantly correlated with SOD (r=0.29***), DPPH (r=0.80***) and TBA (r=0.76***). Between the three activities, SOD was not positively correlated with DPPH (r=0.15*), while TBA was significantly correlated with DPPH value (r=0.51***). DPPH (55.20%) and TBA (50.36%) were significantly higher in foreign rice, while SOD activity (44.29%) was significantly higher in domestic rice. However, an average total activity was significantly higher in foreign rice (47.31%) than in domestic rice (35.92%). SOD, DPPH and TBA activities of middle maturity in maturity time were the highest total activity (44.96%) and significantly differed from the other two groups. Total activity was significantly higher in rice with a colorless awn (42.18%) than with a colored awn (35.87%).