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초등학교 수.연산 영역 부진아를 위한 웹기반 학습시스템의 설계 및 구현
김정랑,강남숙,Kim, Jeong-Rang,Kang, Nam-Suk 한국정보교육학회 2004 정보교육학회논문지 Vol.8 No.2
In the field of number and operation of mathematics, a learner's learning deficit in one year can disturb or obstruct his or her learning in the following year, which is an obvious characteristic in math education. But the problem doesn't stop here. It may increase poor learning in the related math field or, in a serious case, cause mathematical learning incompetence. In the other hand, a teacher must guide a class of about 40 students and take charge of overburdensome routine; it's really impossible for him or her to secure individual teaching time for poor learners and to give lessons considering their individual poor learning elements. In order to solve these problems, this study has found out some poor learning elements from poor learners in teaching mathematical number and operation, offered learning fit for them, and allowed them to approach a learning system regardless of time and space. And it has embodied a web-based learning system for operation field underachiever in elementary school, applied it to the scene of education, and analyzed the results so that a teacher may manage their learning results by DB and guide poor learners systematically. As a consequence, the study could reduce a teacher's teaching overburden and at the same time, raise the learning accomplishments of poor learners.
Alkaloids from the Stem Bark of Phellodendron amurense Rupr
이진환,이병원,강남숙,문여황,양민석,박기훈,Lee Jin Hwan,Lee Byong Won,Kang Nam Suk,Moon Yea Hwang,Yang Min Suk,Park Ki Hun Korean Society of Life Science 2005 생명과학회지 Vol.15 No.3
Two isoquinolines and one quinolone were isolated from the stem bark of Pellodendron amurense Rupr. (Rutaceae). Two isoquinolines were elucidated as thalifoline (2) and pharmacological active berberine (3) has been blocking the release of $Ca^{2+}$ from internal stores. One quinolone was identified as N-methylatanine (1). This is the first report on the isolation of N-methylatanine (1) and thalifoline (2) from this plant. 운향과(Rutaceae)인 황백나무(Phellodendron nmurense Rupr.)의 줄기 점 질에서 2종의 isoquinoline 화합물과 1종의 quinolone 화합물을 분리하였다. Isoquinoline 화합물은 thalifoline (2)과 칼슘 방출을 저해하여 혈압조절에 관여하는 berberine (3)으로 구조동정 되었다. 또한 quinolone 화합물은 N-methylatanine (1)로 구조동정 되었다. 이들의 화합물 중에서 N-methylatanine (1)과 thalifoline (2)는 황백나무에서 처음으로 분리하였다.
정명근,강성택,한원영,백인열,김현경,신두철,강남숙,황영선,안영남,임정대,김관수,박시형,김선림,Choung, Myoung-Gun,Kang, Sung-Taeg,Han, Won-Young,Baek, In-Youl,Kim, Hyeun-Kyeung,Shin, Doo-Chull,Kang, Nam-Suk,Hwang, Young-Sun,An, Young-Nam,Lim, 한국작물학회 2006 Korean journal of crop science Vol.51 No.suppl1
고 isoflavone 함유 콩 유전자원 선발 및 품종육성의 기초자료로 활용하기 위해 국내 콩 주요품종 43계통 및 보존 유전자원 648계통의 isoflavone 함량을 분석한 결과를 요약하면 다음과 같다. 1. 한국산 콩 주요 43품종의 평균 isoflavone 함량은 daidzein이 $484.4{\pm}223.9{\mu}g/g$, genisteinol $448.0{\pm}156.2{\mu}g/g$, glyciteinol $84.9{\pm}48.7{\mu}g/g$, total isoflavoneol $1,017.3{\pm}390.0{\mu}g/g$을 나타내었다. 2. 공시된 주요 품종의 isoflavone 함량은 석양풋콩이 $2,002{\mu}g/g$으로 가장 높은 함량을 나타내었고, 황금콩이 $277{\mu}g/g$으로 가장 낮은 함량을 나타내었다. 또한 콩 주요 43품종을 용도별로 분류하여 isoflavone 함량을 비교한 결과 풋콩 및 올콩이 $1,438{\pm}493.7{\mu}g/g$을 나타내어 조사된 용도별 콩 분류 중 가장 높은 양상을 나타내었다. 3. 국내 보존 콩 유전자원 648계통을 대상으로 isoflavone 함량을 조사한 결과 IT 180001계통이 $3,479{\mu}g/g$의 함량을 나타내어 가장 높은 양상을 나타내었고, IT 910878 계통은 $82.61{\mu}g/g$의 total isoflavone을 함유하여 가장 낮은 계통으로 조사되어 보존 유전자원간에 큰 함량변이를 나타내었다. Isoflavone in soybean is known to have the important physiological functions such as antioxidative, estrogenic, and anti-tumor activities. Therefore, isoflavone content is considered as important aspect of soybean quality. The objectives of this study are to determine the isoflavone contents of soybean germplasms including major cultivars in Korea, and to provide the basic information of isoflavone far development soybean cultivar containing high isoflavone content. Among 43 Korean major cultivated soybean samples, the total isoflavone contents were varied from $277.0{\mu}g/g\;to\;2,002.0{\mu}g/g$, and the average total isoflavone content was $1,017.3{\pm}390.0{\mu}g/g$. Total isoflavone content of Seokryangputkong $(2,002{\mu}g/g)$ was the highest among those of the other cultivated soybeans. On the other side, Hwangkeumkong $(277{\mu}g/g)$ contained lower isoflavone than other cultivars. The total isoflavone content of vegetable use or early maturity soybean cultivar $(1,438{\pm}493.7{\mu}g/g)$ showed more higher total isoflavone content than others. The daidzein, glycitein, genistein and total isoflavone contents of 648 soybean germplasms collected in Korea, were ranged $16.9{\sim}2,019.8{\mu}g/g,\;0{\sim}294.9{\mu}g/g,\;38.5\sim1,337.7{\mu}g/g,\;and\;82.6{\sim}3,479.2{\mu}g/g$, respectively, and total isoflavone content of IT 180001 line $(3,479.2{\mu}g/g)$ was the highest among those of other soybean germplasm lines.