• Journal of the Korean Wood Science and Technology
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• v.25 no.2
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• pp.1-20
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• 1997

목재를 분해시키는 담자균류들은 목재 및 목질복합체에 쉽사리 침투하여 복잡한 리그노셀룰로오스 복합체를 분해시킨다. 이러한 분해에는 많은 효소시스템들이 복합적으로 작용하면서 상호 협동하는 것으로 보고되고 있다. 지금까지 일려진 효소들은 통상 3개의 그룹으로 나눌 수 있는데 그 하나는 목재성분을 직접적으로 공격하는 효소균들, 예를 들면 cellulase complex, laccase(LAC), lignin peroxidase(LIP), horse-radish peroxidase(HRP), manganese-independent peroxidase(MIP) 및 protocatechuate 3,4-dioxygenase(PCD) 등이 있고, 두번째 그룹으로서 manganese-dependent peroxidase(MnP), aryl alcohol oxidase(AAO) 및 glyoxal oxidase(GLO) 등인데, 이들 효소들은 목질을 직접적으로 공격하지 않고 제1그룹의 효소들과 협동하여 작용하는 것으로 알려지고 있다. 제3그룹의 효소들은 glucose oxidase(GOD) 및 cellobiose : quinone oxidoreductase(CBQ)로서 feedback type의 효소들로서 목재고분자의 분해시 대사의 고리를 결합시켜 주는 매우 중요한 기능을 하는 효소군들이다. 그러나 이 이외에도 다른 분해기구가 밝혀지고 있으며 기타 효소들에 의한 리그노셀룰로오스의 분해반응기구의 해명에는 상당한 시간이 걸릴 것으로 사료된다.

• Korean Journal of Child Studies
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• v.35 no.4
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• pp.123-143
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• 2014

This research was based on achievement goal theory which categorizes young children's motivation into three types: mastery, the performance-approach, and performance-avoidance motivation. The participants consisted of forty-eight pairs of children aged 3-4 and their mothers. The participants completed two tasks in order to indentify their motivational types. The short form of the Child Behaviour Questionnaire(CBQ-SF), modified scales from Kim and Kim(2001), and the GIPEPS were also employed. The major findings of the research are as follows: First, in terms of the motivational types of the given sample, performance-approach motivation was ranked first followed by mastery motivation. Second, it was found that the temperament of young children was not related with their motivational types. Third, there were some differences in mother-child interaction between groups based on the frequency of feedback, questions, and the percentage of commands. Fourth, the mood of the relationship appeared to be the only factor of maternal interaction quality which related to children's mastery motivation.

• Proceedings of the IEEK Conference
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• summer
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• pp.147-151
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• 2004

QoS is a subject of high interest for successful deployment of various services in a home gateway and the gateway is possible to support QoS by installing existing queuing disciplines, which control the outgoing traffic to guarantee only QoS of the traffic. But m the home gateway it is also important to guarantee QoS of the incoming traffic. This paper proposes an adaptive control of the traffic to guarantee QoS of incoming traffic into the home gateway. In the proposed method, the upper limit of the available bandwidth of sending rate varies with receiving rate. And the proposed method makes the gap between the allocated rate and the actual service rate of the traffic narrow. Some experiments on a test bed show that the proposed method is valid.

• Journal of the Korean Home Economics Association
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• v.48 no.7
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• pp.99-110
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• 2010

The purpose of this study was to analyze the path of parental divorce on their children's emotional and behavioral problems through child-rearing behaviors and children's self-esteem. The participants were 162 children from divorced families and 194 from intact families. The Instruments used were CBQ (Children's Behaviour Questionnaire) (Rutter, 1967), Child-rearing rating scale (Park, 1995) and SEI (Self Esteem Inventory) (Coopersmith, 1967). The data were analyzed by ANCOVA and path analysis. The results were as follows. First, there were significant differences in children's emotional and behavioral problems and self-esteem, and caregivers' child-rearing behaviors between children from divorced and intact families. Second, parental divorce affected children's emotional and behavioral problems directly, as well as indirectly through child-rearing behaviors and children's self-esteem.

• Journal of the Korea Convergence Society
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• v.9 no.9
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• pp.329-335
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• 2018

The purpose of this study was to examine the relationship between children's Temperamental Effortful Control and adolescents' Academic failure tolerance(AFT). Specifically, Grit effect as a mediator between Effortful Control and AFT was also determined. A total of 108 children participated as they were at age 8, and as they turned 14 years old. Children Behavior Questionnaire (CBQ) was measured to investigate children's Effortful Control, and Grit scale and AFT scale were measured to investigate adolescents' Grit and their response to failure. The results of this study showed that children's Effortful Control was significantly related to AFT. And adolescents' Grit was also positively related to adolescents' AFT. In addition, Effortful Control was related to Grit. Finally, Grit partly mediated the relationship between Effortful Control and AFT.

• Human Ecology Research
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• v.51 no.4
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• pp.395-401
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• 2013

The purpose of this study is to investigate the moderating effects of language abilities associated with between emotionality, attention deficit hyperactivity disorder (ADHD) and peer play interactions. Two hundred fifty-two participants were 3 year olds, with 136 boys and 116 girls. They were recruited from day care centers and preschools in Gyunggi province and Incheon city. Peer play interaction was assessed by the Penn Interactive Peer Play Scale (PIPPS). Emotionality was measured by Child Behavior Questionnaire (CBQ). ADHD was assessed by teacher ratings of ADHD syndrome. Language abilities were measured by Korean Wechsler Preschool and Primary Scale of Intelligence (K-WPPSI). Teachers completed questionnaires to assess peer play interactions, emotionality, ADHD. The results revealed that language abilities moderated relationships between emotionality and play in isolation. The magnitude of associations between emotionality and play in isolation was greater for high levels of language abilities. Moreover, there were moderating effects of language abilities associated between ADHD and play disruptions. Although ADHD was significantly associated with play disruptions, the association was stronger at the higher levels than the low levels of language abilities. It can be deduced that language abilities of 3 year old children affects the protection factor between emotionality and peer play isolation; whilst, it affects the risk factor on peer play disruptions and ADHD propensity.

• Korean Journal of Child Education & Care
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• v.19 no.2
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• pp.57-69
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• 2019

Objective: The purpose of this research was to examine the moderating effects of relationships on the association between temperament and peer play interaction. Methods: The participants were 606 four year olds who were recruited from day care centers and preschools located in Incheon and Gyeonggi province. Teacher-child relationship was measured with Student-Teacher Relationship Scale. Peer interactions were measured with Penn Interactive Peer Play Scale. Temperament was measured with Child Behavior Questionnaire (CBQ). The data was analysed using Pearson correlation and hierarchial regression. Results: Teacher-child intimacy moderated the associations between inhibitory control and play disruption as well as between emotionality and play disconnection. Moreover, Teacher-child conflict moderated the association between emotionality and play disconnection. Conclusion/Implications: The findings suggest that teacher-child relationships buffer risks conferred by temperament.

• Korean Journal of Culture and Social Issue
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• v.15 no.3
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• pp.431-446
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• 2009

This study was intended to validate and develop the driving stress coping behavior scale. In a preliminary investigation, literature studies on the driving stress and open questionnaire were administered and examined in four regions in Korea. As a result, 64 items driving stress questionnaire were developed. In the study, this Driving Stress Coping Behavior Scale(DS-CBS) was examined to 372 drivers located seven regions in Korea. The factors analysis revealed 2 meaningful factors[(Good Coping: GC), (Bad Coping: BC) with 24 items. When internal consistency for each 2 factor was calculated, all sub-scale revealed a satisfactory level of Cronbach's α. Also, correlations with Driver Coping Questionnaire(DCQ) and risk driving behaviors(speed driving, drunken driving, traffic violation, offence accident, defence accident) supported consistently validity of the Driving Stress Coping Behavior Scale(DS-CBS). Also, We investigated the influences of 'Good Coping', 'Bad Coping' consisting of driving stress coping behavior, on traffic accidents risk. As a result, 'Good Coping' and 'Bad Coping' influenced traffic accidents risk. 'Good Coping' had decreased effects, the other side 'Bad Coping' had increased effects on traffic accidents risk(TARI).