• Journal of Biomedical Engineering Research
• /
• v.20 no.1
• /
• pp.21-27
• /
• 1999

In order to increase our understanding of the injury mechanism in the child occupant, three year old child model was developed using commercial dynamic package DADS. Total 14 segments and 12 joints were used to compose a model in three points belted condition with booster seat. HYGE sled test case was simulated to validate the developed model. Based on the comparison of the model and published test results, the developed model appears to be a resonable representation of the three year old dummy.

• Korean Journal of Childcare and Education
• /
• v.11 no.3
• /
• pp.85-102
• /
• 2015

The purpose of this study is to investigate the variables that affect the problem behavior of children and to examine the relationships between problem behavior of young children in relation to the child's characteristics(temperament and ego-resiliency), the mother's characteristics(parenting stress and personality characteristics), and the teacher's characteristics(teacher-child relationship and emotional expressiveness). The researcher surveyed 314 parents and 56 teachers of young children in the transitional period from 32 early childhood institutes in Daejeon. The summaries of the results of the study are as seen below. First, the child's gender and mother's education were statistically significant variables in explaining the variance in problem behavior of young children. More boys than girls showed more problem behaviors and children of mothers who graduated university showed less problem behavior. Second, teacher-child relationship was the most predictive variable in problem behavior of young children. Children who had good relationships with their teachers showed less problem behavior and children who had poor relationships with their teachers showed more problem behavior. The results of this study can provide basic data for consulting and developing program to prevent and treat the problem behavior of young children to consider the development of children.

• Journal of the Korean Society of Child Welfare
• /
• no.54
• /
• pp.79-111
• /
• 2016

The purpose of this study was to examine the structural models in which early cumulative risk factors affect children's language(indicated by expressive vocabularies) and social development(indicated by peer competence) at age 3 thorough their effects on the home learning environment. To examine the hypothesized models, the data of 1,725 families from the second and the fourth waves of the Panel Study of Korean Children was used. Correlation analysis and structural equation modeling were conducted to test the models. First, the cumulative risk factors at age 1 and 3 were highly correlated, implying the stability of the risk factors over time. The more cumulative risk factors at age 1 predicted the lower level of the home learning environment at age 3, which, in turn, was significantly related to both language and social development at age 3. However, the early cumulative risk factors did not directly influence later developmental outcomes. Moreover, the cumulative risk factors at age 3 were directly related to the child's language development, but neither social development northe home learning environment. In addition, the mediational role of the home learning environment (i.e., cumulative risk factors at age 1${\rightarrow}$home learning environment${\rightarrow}$language and social development) was statistically supported. In conclusion, the early cumulative risk factors in infancy indirectly predicted children's development at age 3 through the home learning environment. The practical implications for the early intervention and support for the families with infants who are experiencing multiple risk factors were discussed.

• Journal of Gifted/Talented Education
• /
• v.21 no.2
• /
• pp.449-463
• /
• 2011

The purpose of this study was to examine the validity of Multiple Intelligence Scales for Young Korean Children (MIS-YKC). Participants of this study were 357 children's parents and teachers from Seoul, Gyeongdo, Jeonlado & Choongchungdo. Data were analyzed by confirmatory factor analysis, Pearson's r and Cronbach's ${\alpha}$. Results are as follows. (1) Confirmatory factor analysis of MIS-YKC for parents MIS-YKC revealed that fit indices such as $X^2$=365.712 (df=168, p=.000), RMSEA=.057, SRMR=.047, NNFI=.935, CFI=.948. and MIS-KYC by teacher's evaluation $X^2$=436.765 (df=168, p=.000), RMSEA=.066, SRMR=.051, NNFI=.917, CFI=.934. (2) Correlations between multiple intelligence scales and IQ were significant. (3) Cronbach's ${\alpha}$ ranged from .80 and .86 for seven intelligence scales and .95 for the total scale by parents' evaluation. Cronbach's ${\alpha}$ is ranged from .76 and .91 for seven intelligence scales and .95 for the total scale by teacher's evaluation. All these results show that the multiple intelligence scales for young Korean children parents and teachers are quite reliable and valid.

• The Journal of the Korea Contents Association
• /
• v.17 no.2
• /
• pp.137-148
• /
• 2017

The purpose of this study is to develop a children's ego-resilience measurement scale and to examine the reliability and validity of the developed scale. Subjects consisted of 289 children of age 3 to 5 attending kindergarten and daycare centers located in Gwangju city and Chonnam province. Factor analysis, correlation analysis and reliability analysis were conducted using SPSS 18.0 and Amos 18.0 programs. The children's ego resilience scale consists of 26 items of 5 factors(attention concentration, emotion control, self efficacy, empathy, peer relationship) after the exploratory factor analysis. The confirmatory factor analysis revealed that RMSEA is .059, NNFI is .901 and CFI is .913. Pearson's product moment correlation coefficient were acceptable with this study's scale and KPRC. Chronbach ${\alpha}$ were also acceptable. Thus, the developed children's ego resilience measurement scale is reliable and valid.

• Korean Journal of Play Therapy
• /
• v.21 no.4
• /
• pp.427-448
• /
• 2018

The study examined the mediated-moderation effect of parental reflection levels from maternal childhood experiences by the parents to mother's reaction to negative emotions of their preschoolers by examining it through the lens of parental role satisfaction. The participants in this study were 327 mothers who and their infants aged 3-6 years. They completed questionnaires on the maternal childhood experiences scale, parental reflection scale, parental role satisfaction scale and mother's reaction to negative emotions of their preschoolers scale. The results of the structural equation model analysis are as follows. First, a mediating model revealed that the relationship between maternal childhood experiences by parents and mother's reactions to negative emotions of their preschoolers was mediated by parental role satisfaction. Second, the results revealed the moderation effect of parents reflection levels on the relationship between maternal childhood experiences by parents and parental role satisfaction. Finally, parental reflection levels were also seen to have a mediated moderation effect of parental reflection level from maternal childhood experiences to mother's reaction to negative emotions of their preschoolers through parental role satisfaction. These results indicate the importance of parental reflection and parental role satisfaction.

• Journal of Biomedical Engineering Research
• /
• v.19 no.6
• /
• pp.603-609
• /
• 1998

To anlyze the diffuse axonal injury of the human brain, 3-D finite element models of the adult, two and three years child were developed. Triangular type acceleration which had its maximum value 200g was applied to investigate the effects of acceleration direction and duration time. The pattern of high shear stress generated at the brain stem, pones and midbrain was similar to the pattern of DAI seen in the clinical observation, especially high maximum shear stress was detected in the brain stem of the six year old child model under flexional acceleration. As the duration of acceleration increased generated pressure and maximum shear stress also increased. For the children's model relatively small pressure was generated regardless of the acceleration direction and continued much longer compared with adult's model. From this analysis maximum shear stress was revealed more proper indicator to predict DAI compared to HIC in case of angular acceleration loading.

• Korean Journal of Remote Sensing
• /
• v.37 no.6_2
• /
• pp.1891-1900
• /
• 2021

Fine particulate matter (FPM; diameter ≤ 2.5 ㎛) is frequently found in metropolitan areas due to activities associated with rapid urbanization and population growth. Many adolescents spend a substantial amount of time at school where, for various reasons, FPM generated outdoors may flow into indoor areas. The aims of this study were to estimate FPM concentrations and categorize types of FPM in schools. Meteorological and chemical variables as well as satellite-based aerosol optical depth were analyzed as input data in a random forest model, which applied 10-fold cross validation and a grid-search method, to estimate school FPM concentrations, with four statistical indicators used to evaluate accuracy. Loose and strict standards were established to categorize types of FPM in schools. Under the former classification scheme, FPM in most schools was classified as type 2 or 3, whereas under strict standards, school FPM was mostly classified as type 3 or 4.

• (The)Study of the Eastern Classic
• /
• no.32
• /
• pp.311-362
• /
• 2008

This study aimed to make clear the education process, from antenatal training to early childhood education, of Joseon Royal Family. Centered on the successors to the throne and reviewed also the education of other Royal Family members, this study carried out comparative analysis on them. Antenatal training is pregnant woman's essential physical and mental attitude. It is indispensable to the health and good nature of unborn baby. Antenatal training had been based on the theory of Oriental medical science that fetus can sympathize what mother see and feel. Such theory, combined with Confucian self-culture theory, had taken very important position in Confucianism. Not to speak of Royal Family, noble family regarded antenatal training very essential as beginning of education and root of nature formation. For firstborn son and firstborn grandson, Boyangcheong (輔養廳, special nursery agency) was set up before their age became three, but not for other sons and grandsons of Royal Family. When firstborn son or firstborn grandson grew up to read letters, Ganghakcheong (講學廳) was set up for their early education. Other sons of king also learned in their early ages at Ganghakcheong while other grandsons of king learned at Gyohakcheong (敎學廳). Education courses were almost same between successors and non-successors but there were wide difference in the ranks of their tutors; firstborn son's tutor marked 2nd Jeong(正) class, firstborn grandson's tutor marked 2nd Jong(從) class and other royal sons' tutors were just 9th Jong(從) class.

• Korean Journal of Childcare and Education
• /
• v.6 no.1
• /
• pp.137-155
• /
• 2010

This study investigates the relationships among adult attachment, satisfaction with life and affection-rejection parenting in preschoolers' mothers. The participants were 339 preschoolers' mothers in Daegu or Gyeongbok Province. The collected data were analyzed by single and multiple regressions, using SPSS PC(15.0 version). The results are as follows. (1) Adult attachment and satisfaction with life was positively associated with affection parenting in preschoolers' mothers. Adult attachment and satisfaction with life was negatively associated with rejection parenting In preschoolers' mothers. (2) The influence of adult attachment on affection-rejection parenting was rather higher than satisfaction with life in preschoolers' mothers. (3) The explanation power adult attachment on rejection parenting was rather higher than on affection parenting in preschoolers' mothers.