• Proceedings of the Korean Society of Developmental Biology Conference
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• 1998.02a
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• pp.5-9
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• 1998

• The Science & Technology
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• v.20 no.2 s.213
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• pp.6-7
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• 1987

• The Science & Technology
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• v.24 no.2 s.261
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• pp.54-59
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• 1991

• The Science & Technology
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• v.34 no.10 s.389
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• pp.34-35
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• 2001

• Proceedings of KHEA Conference
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• 2002.04a
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• pp.129-129
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• 2002

• Korean Educational Research Journal
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• v.41 no.1
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• pp.59-79
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• 2020

Men learning has no fixed route. In other words, any route can be taken, which can also be seen in the structure of other "complex systems" discussed in modern society. It can also be examined through Yang's long-standing classic, The Book of Changes Men learning itself started from informal learning to become today's formal learning. As we look at the stages of human civilization's progress, we can quickly discover these stages of development. The issue of human beings has always been a topic of discussion, and these discussions are ongoing. Men learn through language and tools, technology and culture, and through philosophy, art, and religion to deal with their complex and diverse mental world. Through these various activities, learning is accomplished. This is not limited to the physical processes of one generation learning through inheriting knowledge; men's learning, a kind of mental process, has extended our life. This is why there is no other reason that men's minds and learning are always developing. This study is about how to learn in a complex and diversified modern society and to find out how to coexist with the principles of the "complex system" and The Book of Changes.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.16 no.1
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• pp.33-46
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• 2005

First, the author reviewed the relationship between human brain development and cognitive functions such as attention, perception, memory, and language. And then Luria's neurodevelopmental theory and its application on the Neuropsychological test battery for children were reviewed. Finally, various assessment tools to evaluate attention, intellectual function, visual-perception, visual-motor coordination, and executive function were examined.

• Clinical and Experimental Reproductive Medicine
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• v.25 no.2
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• pp.129-134
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• 1998

The objective of this study was to test whether the developmental capacity of human multi-pronuclear (PN) zygotes after ultra-rapid freezing using EM grid can be maintained. For this experiment, multi-PN zygotes which produced in human IVF program were used as an alternatives of normal 2PN zygotes, and they were separated into 3PN or $\geq4PN$ zygotes to compare their in vitro development and cryoinjury according to PN number. As freezing solution, EFS30 which consisted of 30% ethylene glycol, 18% bcoll, 0.5 M sucrose and 10% FBS added D-PBS was used. The result obtained in this experiment was summarized as follows; When the multi..PN zygotes were ultrarapidly frozen and thawed, the high mean percentages (85.5%) were survived. Also when the cleavage rates between control and freezing group were compared with PN number, there were not significantly different in each group (3PN; 81.3% & 85.4% and $\geq4PN$; 90.0% & 95.7%). When the in vitro development rates after thawing were examined, freezing 3PN group (22.0%) was not differed to control 3PN group (38.5%), although the development result of freezing $\geq4PN$ group (45%) was significantly lower than that of control $\geq4PN$ group (44.4%) (p<0.05). These results demonstrate that developmental capacity of human zygote can be obtained by ultra-rapid freezing method using EM grid and EFS30.

• Journal of Christian Education in Korea
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• v.62
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• pp.75-99
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• 2020

What means the Waldorf school based on integrative imagination to our educational reality in our days? This is the key question in this article. This article seeks to the fundamental meaning of the Waldrof school to know our educational problems. For this purpose this article explore understanding on the theosophy of Rudolf Steiner in the insufficient research until now. The theosophy of Rudolf Steiner in this article is investigated with the understanding of Triune God, human, and educational arts. The understanding of triune God is identified as the critiques to the view point of materialism, the meaning of logos in the scripture of John, the Christ as the foundation of all creatures. The understanding of human being is distinguished as the nature of body, soul, and spirit in the theosophy. Especially the nature of spirit is to see the invisible in the visible things through the eyes of mind that means esoteric spirituality not unrealistic spirituality of monasticism but integrative spirituality of overcoming the dualism between spirit and material. The educational characteristics for the integrative spirituality and imagination is called as the educational arts by Rudolf Steiner. The educational arts includes contents of the soul life, the education of freedom with individuality, and integrative education. The educational arts intends to the wholistic education with harmonious interaction of intellect, feeling, and willing to equip the individual human being in the spirit. And the educational arts educates with the harmony of story, play, art, and integrative curriculum of subject contents. The educational arts is to intend for reformation in christian education including church school and alternative school, etc. The Waldorf school needs to emphasizing the christian spirituality in the educational arts.

• Clinical and Experimental Pediatrics
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• v.48 no.4
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• pp.411-415
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• 2005

Purpose : This study was performed to determine the developmental expression pattern of nerve growth factor(NGF) in the urine of healthy children. It was hypothesized that NGF may contribute to the development of the spinobulbospinal micturition reflex that represents the adult micturition pattern. Methods : Voided urine was collected in 60 healthy children during the first 5 years of life(0-1 month, n=10; 1 month-1 year, n=10; 2 years, n=10; 3 years, n=10; 4 years, n=10). The urinary NGF was analyzed by using an enzyme linked immunosorbent assay. Results were normalized based on creatinine or total protein in urine. Results : NGF was significantly greater among neonates compared to other age groups(P<0.05). NGF levels declined during 1 month to 1 year and increased by age 2 years. NGF levels at age 3 years were less than in neonates examined. When comparing the NGF levels according to continence in children over 1 year old, NGF levels were significantly lower in children with continence than in children with incontinence(P<0.05). Conclusion : These data suggest that NGF is involved in the achievement of continence and in mechanisms of bladder nerve growth and in the reorganization of bladder reflex pathway.