• 산업기술연구
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• 제22권B호
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• pp.45-50
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• 2002

Airbag systems have improved the occupant safety in reducing the injuries of driver and passenger during collisions. They have occasionally caused fatalities; especially to small occupant and children. Recent airbag related fatalities of children have raised serious concerns on how to evaluate the safety of children in various crash environments. This paper present the development of the 3-year-old human model. Child human model is composed of skin, skeleton and joints. The positions of joint and mass properties of body segments are calculated from ARB(Ariticulated Rigid Body) program GEBOD. To verify the developed human model, ROM simulation and OOP simulations are conducted.

• Clinical and Experimental Pediatrics
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• 제52권3호
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• pp.269-276
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• 2009

Viruses are the most common cause of lower respiratory tract infections (LRTIs) in infants and young children and are a major public health problem in this age group. Viruses were identified in 54.9-70.4% of hospitalized infants and children with LRTIs in Korea. The viral pathogens identified included respiratory syncytial virus (RSV) A and RSV B, influenza (Inf) A, Inf B, parainfluenza (PIV)1, PIV2, human bocavirus (hBoV), human rhinovirus (hRV), adenovirus (ADV), human metapneumovirus (hMPV), human coronavirus (hCoV)-OC 43, hCoV-229E, hCoV-NL63, hCoV-HKU1, and human enterovirus (hEV). Coinfections with ${\geq}$2 viruses were observed in 11.5-22.8% of children. The occurrence of LRTIs was the highest in the first year of life. The specific viruses are frequently associated with specific clinical syndromes of LRTIs. LRTIs caused by RSV were predominant among younger infants. hRV accounted for a larger proportion of LRTIs in young infants than ADV and hBoV. hMPV was frequently detected in children >24 months old. The number of hMPV infections peaked between February and May, whereas hRV was detected throughout the year. Thus far, hCoV is a less common respiratory pathogen in cases of ALRI and URI in Korean children.

• 한국치위생학회지
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• 제13권3호
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• pp.501-507
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• 2013

Objectives : The purpose of this study was to evaluate the effect of the family dentist system on oral health status of children and adolescents of Community Children's Centers in Busan, Korea. Methods : The subjects of this study were 81 children and adolescents, 6 to 14 years old, using Community Children's Centers. The oral health survey was conducted on the subjects from the starting stage of family dentist program in 2009 to the evaluation stage in 2010. Dental health status was examined by a trained dentist according to the guideline proposed by the World Health Organization. In addition, the information on the oral health knowledge, belief, and process of dental care were obtained using questionnaires. Data were analyzed using the paired samples t-test. Results : Percentages of subjects with fissure sealants on permanent teeth and filling rate among DMF teeth of 2010 year were higher than those of 2009 year (P<0.05). However, the rate of decayed teeth among DMF teeth of 2010 year was lower than those of 2009 year (p=0.049). Conclusions : These findings showed that the family dentist system brought a positive effect on caries prevention and proper dental care of children and adolescents of the Community Children's Centers.

• Journal of Nutrition and Health
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• 제27권8호
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• pp.837-843
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• 1994

The relationships among physical growth, dietary intakes, and Zn & Cu status were investigated in total of 128 eight-year-old children selected from the primary school in Seoul. The mean weight and height were 28.3Kg and 129.6cm and the average BMI and R hrer index were 16.75 and 129.25. These values were a little higher than the ones for the average Korean children at the same age. The average serum Zn & Cu levels were 109.98$\mu\textrm{g}$/100ml and 84.13$\mu\textrm{g}$/ml. About 2.4% of the subjects had blood Zn level below the normal range and 8.6% had above the normal level. For Cu, about 43% of the subjects fell into the subnormal level. Daily dietary intakes of calorie, protein and ascorbic acid were relatively adequate but Fe, thiamin, riboflavin, and niacin were insufficient. Ca and vitamin A intakes were very poor. More than 50% of the subjects onsumed Ca and vitamin A less then 2/3 of RDA. There was no consistant relationship among the serum Zn and Cu levels, growth, and the nutrients intakes. But it was observed that serum Zn contents were higher as consumption of milks, fats and oil groups were high in the serum Zn contents were higher as consumption of milks, fats and oil groups were high in the several BMI groups, and lower in taller and heavier children within the group of 110-119% BMI rate. Therefore, it could be summarized that the Zn status of the children was favorable but the Cu status was inadequate. Serum Zn and Cu levels were found to be related to the overall quality and/or the quantity of diet and physical growth pattern of children.

• Journal of Nutrition and Health
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• 제42권2호
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• pp.128-134
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• 2009

For children, voluntary addition of micronutrients to foods must be done without health risk to any of them. This study examined safe maximum levels of vitamin A and C, and calcium for children based on nutrient intake data from the 2001-2002 and 2005 National Health and Nutrition Examination Survey (NHANES) in Korea, while using the safe strategy for addition of micronutrients to foods suggested by EU. For the respective 2001-2002 and 2005 NHANES data proportions of potentially fortifiable energy intake ranged 0.36-0.40 and 0.31-0.34 and the $95^{th}$ percentile intake of energy were 2,325-3,296 kcal and 2,286-3,814 kcal depending upon age groups. Ninety-fifth percentile intake levels of vitamin A were over or close to UL, even without considering supplement intake for some age groups, which suggest that vitamin A fortification to foods required further consideration. For calcium, 12-14 year old children were the most sensitive group for excessive intake and nutrient fortification to foods. In these children, maximum levels for fortification were 242-290 mg and 484-580 mg with 0.135 and 0.068 proportions of fortified food (PFF) assumed, respectively, without considering calcium intake from supplements. With consideration of calcium intake from both diet and supplement, the maximum levels for fortification were 20-36% of those without supplement intake. The maximum fortification levels of vitamin C were the lowest in 3-5 year old children, showing 77-187 mg and 68-164 mg with and without supplement intake, respectively. These results suggest that the model used for risk assessment in this study can be used to help risk managers to set maximum levels for safe addition of micronutrients to foods.

• 아동학회지
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• 제23권1호
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• pp.17-35
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• 2002

The relationship between parent's attitude toward children's emotional expressiveness and children's emotional intelligence(EI) was investigated with the Parent Attitude toward Children's Expressiveness Scale(Saarni, 1990), and children's EI was assessed by a teacher rating scale developed by Kim(1999). The subjects were 121 triads of 3- to 6-year-old children and their mothers and fathers. Data were analyzed by frequencies, percentiles, means, standard deviations, Cronbach's ${\alpha}$, two-way ANOVAs, Pearson's correlations, and multiple regression. Results indicated differences in level of EI as a function of gender and age; differences in both mother's and father's attitudes toward children's expressiveness as a function of children's gender and age; and positive correlation between mother's and father's attitudes toward emotional expressiveness and children's EI. Children's age and parental attitude toward children's emotional expressiveness explained 46.7% of children's EI.

• 가정과삶의질연구
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• 제33권3호
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• pp.15-29
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• 2015

The purpose of this study was to explore ethnic socialization enacted by Japanese marriage migrant women currently raising 7- to 18-year-old children in Korea. To accomplish this goal, we examined the following research questions: (1) What is the level of ethnic socialization enacted by Japanese marriage migrant mothers? (2) Does the level of ethnic socialization vary by demographic and ethnocultural factors? (3) To what extent do demographic and ethnocultural factors influence the enactment of ethnic socialization by Japanese marriage migrant mothers? The sample consisted of 243 Japanese marriage migrant women currently raising 7- to 18-year-old children in Korea. For data analysis, T-test, correlation, ANOVA, and hierarchical regression analyses were used. Also, we performed separate analyses for two subtypes of ethnic socialization in particular, namely cultural socialization and preparation for bias. Ethnocultural factors examined in this study were the level of discrimination experience, Japanese ethnic identity, and husbands' ethnic orientation in childrearing. The main results of this study were as follows. First, results showed that Japanese marriage migrant women enacted moderate levels of cultural socialization and preparation for bias. Second, Japanese marriage migrant women's cultural socialization and preparation for bias were both positively related to the levels of women's discrimination experience and Japanese ethnic identity. Also, the younger the age of the firstborn child, the more preparation for bias these women performed. In addition, women whose Korean husbands wanted to raise their children more biculturally performed more cultural socialization compared to those with Korean husbands who wanted to raise their children as Korean. Third, hierarchical regression analyses revealed that women's discrimination experience and ethnic identity positively predicted both types of ethnic socialization. Also, Korean husband's bicultural orientation towards childrearing predicted a higher level of cultural socialization by Japanese marriage migrant women. Results of this study provide basic information about ethnic socialization among multicultural families in Korea, which can be useful for promoting positive self-identity among multicultural children. Furthermore, the results suggest that husbands' support and cooperation in ethnic socialization can be crucial for marriage migrant women to socialize their children utilizing their cultural and experiential resources.

• 한국생활과학회지
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• 제23권1호
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• pp.31-46
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• 2014

This study investigated the proceeding patterns of constructive play with lego blocks, and the differences on the quality of constructive play and symbolic play's pretending elements. The subjects were 132 children at child care centers and kindergarten: 64 three-year-olds (36 boy, 28 girl) and 68 five-year-olds (32 boy, 36 girl). The study found three proceeding patterns in the constructive lego play. First, children engaged in constructive and symbolic play simultaneously, or they switched back and forth between symbolic and constructive play. This pattern was termed as "constructive and symbolic play simultaneously or alternatively"(type 3), and it was occurred most frequently. Secondly, children focused only on constructing structures. This pattern was termed as "constructive play only"(type 1), Thirdly, children engaged in symbolic play only after they completed building some structures. This pattern was named "symbolic play after constructive play"(type 2). The findings also indicated that children who were categorized as type 1 and 2 showed higher quality of constructive play and longer duration in play than children as type 3. Five-year-old children sustained play longer and showed higher quality in terms of elaboration, imagination, and variety (number of blocks, shape of blocks). Furthermore, children as type 3 showed a higher level of imaginative play than children as type 1 and 2, especially in terms of role, objet, and context of projection.

• International Journal of Advanced Culture Technology
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• 제8권2호
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• pp.239-245
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• 2020

With the recent revised curriculum, the importance of exploring children's play through new teaching media is increasing in kindergarten. In this study, it is to use the robot 'Bee-bot' for early children to uncover the changes that children have through free exploration and play. As a result of comparing the change of scientific problem-solving ability of 3, 4, and 5-year-olds, there were significant changes in all three sub-elements. We propose to us scientific problem-solving ability test tools, propose and apply ideas for problem-solving, conclusion on problem-solving Building. Through this, it was found that unplugged play using 'Bee-bot' is meaningful as a play environment and as a teaching medium for children aged 3, 4 and 5 years old.

• 대한소아치과학회지
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• 제45권4호
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• pp.474-483
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• 2018

본 연구는 양육방식에 따른 어린이의 치과공포 차이와 부모/자녀 간의 치과공포 일치도에 대해 조사하고자 하였다. 전주시에 거주하는 총 801명의 8세와 11세 어린이와 부모를 대상으로 하였다. 부모들은 자택에서 자녀의 치과공포를 평가하는 Children's Fear Survey Schedule - Dental Subscale(CFSS-DS)와 4가지 양육방식에 대한 질문이 담긴 설문지를 작성하였다. 또한, 어린이들은 교실에서 CFSS-DS에 응답하였다. 권위적과 허용적 양육방식이 각각 53.4%, 45.8%를 차지하였다. 권위적과 허용적 양육방식의 부모는 자녀가 보고한 치과공포점수보다 각각 5.7점과 7.5점 높게 평가하였다. 8세에서만 권위적 양육방식의 어린이가 허용적 양육방식의 어린이보다 치과공포점수가 유의하게 3.9점 높았다(p = 0.002). 부모와 자녀 간의 치과공포일치도는 양육방식에 따른 차이는 없으나, 일치도에 대한 ICC 0.78로 중등도의 일치도를 보였다. 부모의 양육방식은 어린이의 치과공포와 관련이 있으며, 특히 권위적 양육에서 자란 8세 여자 어린이가 치과공포가 가장 높았다. 그러나, 나이가 증가하면서 부모의 양육방식이 자녀의 치과공포에 미치는 영향은 감소하였다.