• Journal of the Korean Home Economics Association
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• v.44 no.4 s.218
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• pp.159-173
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• 2006

The purpose of this study was to investigate the seating style of children between Korea and USA viewed from activity analysis in child-care centers. Observation and depth-interview method were used for data collection. Ninety-eight children aged from 38 to almost 62 months were observed for five minutes three times during an indoor free play period in Korea and USA in 2003 and 2004. The results of the research were as follows. There were significant differences between the postures of Korean and American children. Korean children maintained floor-seating postures longer than chair-seating and standing postures. The factors such as sex, age and physical environment influenced the children's seating style, while playing-type influenced their posture. This study will contribute to our understanding of the physical environment and children's seating style according to culture.

• Korean Journal of Child Studies
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• v.18 no.1
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• pp.23-38
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• 1997

This study investigated the difference between infant verbal and nonverbal interactions with a partner (teacher or peer). The subjects were 20 two-year-old infants 00 boys and 10 girls, mean age 31.3 months). Verbal and nonverbal interactions were videotaped during one hour of indoor free play per child in the Center. In verbal interaction, (1) boys spoke to themselves more than girls did, and (2) girls gave orders (imperatives, requests, and prohibitions) to peers and teachers more than boys did. In non-verbal interactions, (1) girls nodded to teachers more than boys did, (2) boys came closer to peers more than girls did, and (3) girls refused by gestures to peers more than boys did. In conclusion, the majority of the boys could be classified as peer-oriented and physically active in their interactions.

• Korean Journal of Childcare and Education
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• v.7 no.3
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• pp.143-164
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• 2011

The purpose of this study was to examine toddlers' experienced world, which was shown in a play of the nature-friendly outdoor environment. Through this, the aim was to offer an opportunity of trying to seek a plan for activation in the nature-friendly outdoor play as for toddlers. This study targeted 9 toddlers between 22 months and 33 months who are attending S child care center where is located in Busan Metropolitan City, and was progressed with qualitative research method available for examining the in-depth significance of the phenomenon. A method of data collection was carried out the participatory observation and the in-depth interview. As a result of the study, the toddlers play experience in nature friendly outdoor environment provided special and various experience that can be limited in indoor at daycare center. First, toddlers were experiencing 'exploratory world of making a sense awakened.' Second, toddlers were experiencing 'communicative world of making emotion awakened.' Finally, on the early childhood education and the child-care education, a plan of offering enough time will need to be pursued now that toddlers can experience a play by being deeply immersed in nature, which is the space of free communication and the living sensational space, with escaping from the existing frame.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.13 no.4
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• pp.221-227
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• 2013

In this paper, zero-energy house in order to monitor the energy savings come with Zigbee communication temperature humidity, smoke detection, illumination and CO2 to develop complex sensor board a protocol for handling about it dealt. In particular, indoor space to mount the sensor based on the location of the control algorithm, so it varies through the Zigbee wireless sensor mounting position is free, and the advantage of being able to change. Also, the energy loss that occurs through the window can be reduced to the room lighting can play an important role in the control system.

• Journal of Digital Convergence
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• v.16 no.1
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• pp.35-45
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• 2018

The purpose of this study is to explore the meaning of place that is formed by children experiencing the space of kindergarten existentially. For this purpose, the indoor and outdoor spaces of kindergarten, which is a real place where infants experience, are selected as the study observation category. In order to carry out the research, video recording was done focusing on children's free choice activity time and outdoor play through infant observation and non - formal interview. As a result of research, it is found that the place nature of kindergarten as an existential space experienced by infant and teacher as a space that is formed in experience and relation, place as a common production space of play, place as a space where education and life coexist, It was shown that it represents a special space created by experienced kindergarten, and a space characteristic as a space shared by communication. The place of kindergarten has a relationship with the existential experiences of infants, suggesting that teachers need a reinterpretation of space.

• Proceedings of the Korean Environmental Health Society Conference
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• 2005.06a
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• pp.289-292
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• 2005

An imbalance between oxidants and antioxidants, in favor of oxidants leading to oxidative stress, is known to play an important role in the pathogenesis of various diseases. Isoprostanes are structurally stable isomers of the conventional enzymatically derived prostaglandins, which are produced in vivo primarily by a free radical catalyzed peroxidation of polyunsaturated fatty acids. In asthmatics, disease severity can occur from environmental exposure to air pollution. Some surveys suggested that air pollutants, especially diesel-exhaust particulates, could trigger allergic sensitization and development of atopic diseases. Sick house syndrome (SHS) presents healthy damage owing to the indoor environment of a building. The aim of this study was to examine isoprostane as a parameter fur oxidative stress in environments related diseases such as sick house syndrome, atopy and asthma. We measured plasma and urinary levels of isoprostane from health volunteers, sick house syndrome, atopy and asthma patients. Plasma isoprostane concentrations in asthma and sick house syndrome group were significantly higher than in control. Urinary isoprostane levels were significantly higher in volunteers with sick house syndrome and asthma compared with health volunteers. These findings suggest that plasma and urinary isoprostane measurement may have useful clinical implications for investigating sick house syndrome and asthma. The interventions that decrease exposure to environmental reactive oxygen species might be beneficial in these diseases.

• Korean Journal of Child Studies
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• v.13 no.2
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• pp.217-228
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• 1992

The purpose of this study is to examine the effects of early full-time nonparental care during infancy/toddlerhood on children's socioemotional behaviors during the preschool period. Subjects for this study were 105 three- to five-year-olds from middle-class families in the U. S. A. Children were assigned to one of three groups according to their early care history. Children's social interactions with peers and caregivers during indoor free-play sessions in day care centers were observed for 20 minutes. The head teachers rated the children's social and emotional behaviors on two questionnaires. Mothers completed the Attachment Q-sort for attachment assessment for the preschoolers. In addition, mothers were asked to fill out a questionnaire on their parenting practices. Children who had received full-time nonparental care during infancy and/or toddlerhood were rated by their teachers as being more intellectually competent than children who did not receive full-time nonparental care during first three years of life. They were, however, rated by teachers and were observed by the researcher as being more aggressive than children with no full-time nonparental care. These children were observed to engage in less wandering/onlooking behaviors than children who had not had any full-time nonparental care. Children's attachment security scores and dependency scores did not differ as a function of early nonparental care histories. When the effects of early care patterns, sex of child, and current attachment security to mothers on aggressive behaviors of the preschoolers were examined by a hierarchical regression model, then any "pure" effects of nonparental care and of attachment security on child aggression were minimal after controlling for family background, child care center quality, and maternal childrearing practices. Strong buffering factors for the preschool children (family characteristics, parenting styles, and high quality nonparental care) mediated a possible risk factor of early nonparental care and promoted optimal outcomes for the children.