• 한국발생생물학회:학술대회논문집
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• 한국발생생물학회 1998년도 제3차 심포지움
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• pp.17-19
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• 1998

• 아동학회지
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• 제34권5호
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• pp.99-114
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• 2013

This study examined the relationships between children's cool executive function(cool EF), hot executive function(hot EF) and self-regulation according to the developmental changes. Children aged 3-5 years (N = 104) participated in this study. The participants completed cool and hot EF tasks and teachers reported on the children's cognitive regulation, emotional regulation, and behavioral regulation by means of questionnaires. The results indicated that cool EF and hot EF had different developmental patterns according to different age groups. High levels of cool/hot EF predicted better abilities in terms of cognitive, emotional, and behavioral regulation respectively. The relationship between coo/hot EF and cognitive/behavioral regulation were moderated by age, except in the case of emotional regulation. This paper also offers a detailed discussion of results and recommendations for future studies.

• Reproductive and Developmental Biology
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• 제30권2호
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• pp.75-79
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• 2006

The developmental regulation of the preimplantation mammalian embryos is a fundamental step for preparing the implantation and it may be regulated by several autocrine and paracrine factors including platelet-activating factor. PAF improved the embryonic survival and implantation but its role during blastocyst development is still largely unknown. In this study, the effects and the possible pathway of PAF on developmental regulation of blastocyst to hatching stage were investigated. Developmental pattern in hatching embryo was a concentration-response curve showing maximal activity at 1 nM PAF, with decreasing activity at higher concentrations. $50{\mu}M$ 1-(5-isoquinolimnesulfonyl)-2-methylpiperazinme dihydrochloride (H-7), a PKC inhibitor, inhibited the progression of blastocyst to hatching embryo. In addition H-7 blocked the PAF effects on the blastocyst development. Besides tetradecanoylphorbol acetate (TPA), a PKC activator stimulated development of blastocyst to the hatching stage. These finding revealed that PAF support the blastocyst development to the hatching embryo. Also it is suggested that PAF action pathways in hatching supporting include the PKC signaling pathway.

• 한국발생생물학회:학술대회논문집
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• 한국발생생물학회 2006년도 전기 22차 학술대회
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• pp.3-3
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• 2006

• 아동학회지
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• 제21권4호
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• pp.21-34
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• 2000

This investigation of developmental trends in children's emotional intelligence used the Emotional Intelligence Rating Scale for Preschool Children(Kim, 1998) to study 973 children. Significant age differences were found in 5 factors: 'utilization of emotion', 'regulation of emotion', 'handling of relationship between child and teacher' and 'handling of relationship with peers'. Children's emotional intelligence scores increased with age in 3 factors: 'utilization of emotion', 'empathy', and 'regulation of emotion'. Sex differences were found in 5 factors: 'utilization of emotion', 'empathy', 'appraisal and expression of self emotion', 'regulation of emotion', and 'handling of relationship between child and teacher'. In all factors, the scores of girls were higher than those the scores of boys.

• BMB Reports
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• 제31권3호
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• pp.249-253
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• 1998

The developmental regulation of Caenorhabditis elegans DNA topoisomerase I expression was examined using synchronized Caenorhabditis elegans cultures. Variations of the relative mRNA and protein levels of the enzyme during their development were measured by Northern and Western analyses, respectively. The mRNA level was the highest at the embryonic stage, decreasing rapidly to the one tenth level at the L1 stage, and then increasing by a few fold at the L4 and young adult stages. The protein level was the highest at the L1 stage, with gradual decreasing at the following stages until it showed a slight increase at the young adult stage. Based on our results of the expressional regulation, the possible roles of DNA topoisomerase I in the development of C. elegans are discussed.

• 한국동물학회지
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• 제34권1호
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• pp.123-130
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• 1991

Several parameters of u -glycerol-3-pholphate dehydrogenase (GPDH) such as activity, content and translatable mRNA levels were measured to elucidate mechanism underlving developmental and tissue specific regulation of 6PDH activity in Drosophila melonogastrr. In adult segments, most of total GPDH activity (62%1 Iwas detected in thorax where GPDH-1 resided, while 32% of total GPDH aUiviD was only detected in abdomen where GPDH-3 resided. The relative synthesis of GPDH was, however, similar in both tissues, although 58% of total GPDH was synthesized in abdomen. These results strongly suggest that the turnover rate of the abdominal enzyme (GPDH-3) was much more rapid than that of thoracic enzymes (GPDH-1). In nitro translation and immunoblotting experiments also indicate that GPDH-3 was arised by posttranslational modification from a single polypeptide (GPDH-1).

• 한국발생생물학회:학술대회논문집
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• 한국발생생물학회 2005년도 제20차 학술대회 논문집
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• pp.38-38
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• 2005

• 한국발생생물학회:학술대회논문집
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• 한국발생생물학회 2005년도 제5회 발생공학 국제심포지엄 및 학술대회
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• pp.46-46
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• 2005

• 한국발생생물학회:학술대회논문집
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• 한국발생생물학회 2005년도 제5회 발생공학 국제심포지엄 및 학술대회
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• pp.117-117
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• 2005