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태동년(Dong Nyen Tae),황금희(Keum Hee Hwang),한용남(Yong Nam Han) 한국생약학회 1995 생약학회지 Vol.26 No.1
Dopamine β-hydroxylase (DBH) catalyses the enzymatic reaction of dopamine to norepinephrine. For the purpose of isolating DBH inhibitors from natural resources, thirty one kinds of medicinal plants were screened by tracing the inhibitory activities against bovine adrenal DBH, utilizing tyramine as a substrate. Among the crude drugs tested, leaves of Lactuca sativa L., Gardeniae Fructus, Magnoliae Flos and Scutellariae Radix showed potent enzyme inhibitory activities against DBH.
교사의 수학에 대한 신념이 수업 방법과 학생의 문제해결 수행에 미치는 영향
김시년 한국수학교육학회 1999 初等 數學敎育 Vol.3 No.1
This paper shows how the social tradition and belief of korea on education affects teachers and students and learning. 1. Interview with teacher. During surveying this teacher's class, we knowed that the teacher have accentuated algorism learning and preparation for external examination in math class. Teacher's beliefs about mathematics have a strong effect on the method of class and the performance of problem solving. 2. Interview with students and short test. 1) Students usually had fine ability of calculation for number. But Many pupils didn't know the meaning of the operations. 2) The most of pupils are good at routine math problem solving but when the question whose the condition don't meet was given, they experienced difficulties. 3. Korean sociocultural specialty on education: The korean place high emphasis on education and think of education as the means of success. This emphasis can be traced to the Confucian view. 1) tradition on examination culture. 2) the traditional convention of the learning method. Korean sociocultural specialty on education play role of strengthen rote learning and algorism class. The important things to education reformation are getting a balance between practice and understanding. we should make changes not only in national dimension but also in math class.
Tuck Cheong Tang,KOI NYEN WONG 한국국제경제학회 2011 International Economic Journal Vol.25 No.2
Since the liberalization of trade and investment in the 1990s, inward foreign direct investment (FDI) has been seen to play a greater role in forging trade flows, integration into the regional and international markets and economic development for a transition economy such as Cambodia. Despite her recent progress in attracting FDI and fostering trade, the direction of causality between inward FDI, exports and imports of merchandise as well as services has not been empirically explored. The findings show that inward FDI not only can promote both merchandise and services exports but also indicate the presence of backward and forward linkages, which could result in positive externalities. However, based on the impulse response analysis, it seems that merchandise exports are more vulnerable than services exports to an unanticipated shift in FDI inflows in the medium run.
Weinberg-Salam-Glashow 모형(模型)에서 경립자(輕粒子) 과정(過程)과 반경립자(半輕粒子) 과정(過程)
고재걸 ( Jae Kul Koh ),김귀년 ( Ki Nyen Kim ) 경북대학교 과학교육연구소 1980 科學敎育硏究誌 Vol.4 No.-
The Weinberg-Salam-Glashow model of leptons and hadrons is described briefly. This model is based on SU(2)×U(1) gauge group with three intermediate vector boson(W±, Z°) fields and a photon (Au) field. Therefore, this model require the existense of a neutral massive intermediate vector boson coupled to leptons and to a strangeness conserving neut-ral hadron carrents. The leptonic processes, such as ve+e-→ve+e-, vu(vu)+e-→vu(vu)+e-, are discussed in the W-S-G model. It is found that the W-S-G model explains these processes within certain experimental limits And then, K°→uu decay mode is also discussed in the context of W-S-G model. This amplitude is found to vanish by what appears to be a fortuitous cancellation between two kinds of diagrams (these of W± exchange and of induced λnZ coupling). And, with the GIM suppression factor ε0 of order 10-3, the weak contribution to K°→uu would be well within the bounds implied by the experimental data even if the cancella-tion of the axial vector part were not complete. Leptonic and semi-leptonic decay modes in W-S-G model, therfore, agrees well with the experimental bounds.