남조류의 체외 대사부산물이 다른 조류의 광합성에 미치는 타감작용

김범철,허우명,황길순,안태석,심재형 江原大學校 附設 環境硏究所 1994 環境硏究 Vol.11 No.-

The effect of cyanobacterial extracellular byproducts upon the aIgal photosynthesis was assessed to elucidate the allelopathic effect of algal blooms in eutrophic lake. Algal cultures were filtered with 0.2μm membrane filters to remove algal cells and sterilized. 0 to 30m1aliquots of filtrate were added to 25m1 culture suspensions of other algal species, and the (14)^C uptake rates wert measured. The filtrates of cyanobacterial cultures(Anabaena flos-aquae, Phormidium sp.) inhibited the photosynthesis of green algae(Selenastrum capricornutum and Scenedesmus brasiliensis), while the filtrate of Selenastrum capricornutum and Scenedesmuns brasiliensis did not inhibit Anabaena flos-aqiae. In the autoinhibition test Anabaena flos-aquae, Selenastrum capricornutum, and Scenedesmus brasiliensis showed positive, negative, and no effects, respectively.

期待, 換率 및 金利不安定과 外換市場介入

成範鎔 홍익대학교 경영연구소 1995 경영연구 Vol.20 No.-

히스타민 및 항히스타민제가 L_(1210)백혈병세포계증식에 미치는 영향에 관한 실험적 연구

염범우,이대일,백승룡 고려대학교 의과대학 1986 고려대 의대 잡지 Vol.23 No.1

There is close relationship between growth of tumor cell and immunologic function of the host. And growth of tumor cell also partially depends on histamine which indirectly modulate degree of immunologic response of the host. However, there is no report on direct effect of histamine on the growth of tumor cell. Therefore, to evaluate direct effect of histamine on growth of tumor cell, histamine and Hz-receptor antagonist (cimetidine) were added in Fischer's culture media in concentration of 10^(-3)M , 10^(-4)M and 10^(-5)M and cultured L1:10 leukemic cell for 24,72 and 96 hours. The results are as followings; 1. Histamine iii high concentration(10^(-3)M) inhibited the proliferation of L_(1210) cell lines. 2. H2-receptor antagonist showed no inhibitory activity on the proliferation of L_(1210) leukemic cell lines a t each concentration and (10^(-3), 10^(-4) and 10^(-5)). 3. The combination of histamine and H2-receptor antagonist showed temporary inhibitory effect on the L(1210) leukemic cell lines at 24 hours culture. Above results suggest that histamine show inhibitory activity to growth of L_(1210) leukemic cell lines through H2-receptor.

The Hypolimnetic Anexie zone and the Metalimnetic Oxygen Minimum Layer in a Deep Reservoir, Lake Soyang

김범철,조규송 江原大學校 附設 環境硏究所 1989 環境硏究 Vol.6 No.-

소양호의 용존산소 수직분포를 1985년 7월부터 1989년 7월까지 1∼2개월 간격으로 조사하였다. 전반적으로 용존산소농도가 매년 감소하는 추세를 보이고 있으며, 특히 1988년에는 심층에 무산소층이 형성되어 순환기 직전에는 저층으로부터 15m 높이까지 확대되었다. 이는 1980년대초까지 빈영양호이었던 소양호가 부영양화되고 있음을 보여주는 것이며 무산소층에서는 저층으로부터 용출된 무기인산염과 암모니아의 농도가 매우 높아 앞으로 영양염용출 증가에 의해 소양호의 부영양화는 가속될 것으로 예상된다. 또한 최근 수년간 겨울기온이 높았던 것도 수직혼합을 감소시킴으로써 용존산소 감소에 기여했을 것으로 보인다. 매년여름 수심 10∼20m에서 중층 산소최저층이 나타나고 있는데 이것은 국내 대형 저수지에서의 전형적인 분포형태인 것으로 보인다. 산소최저층이 표층의 혼합층 바로 아래에 형성되고, 수심이 깊어지면서 다시 서서히 산소가 증가하는 것으로 볼때 형성원인은 표층의 수온이 높아 산소비율이 크고 표층의 혼합층까지만 산소가 공급되기 때문인 것으로 보인다. 또한 장마철에 중층으로 유입되는 유입수에 현탁물이 많이 포함되어 있으며 산소최저층은 새로이 형성되는 중간츠으이 상부와 수심이 일치하고 있고 항상 여름의 우기에 형성되는 것으로 보아 우기의 유입수와 관련이 있을 수도 있다. The seasonal and vertical dissolved oxygen distributions were surveyed from July 1985 to July 1989 in a warm monomictic dendritic-shape reservoir, Lake Soyang. DO content showed the general trend of decrease from year to year, implying the advance of eutro· phication. HypoUmnetic anoxic zone began to develop in 1988 reaching upto 15 m from the bottom, which is an epoch·making event in Lake Soyang, well-known as a clear oligotrophich lake until early 1980s. In anoxic zone phosphate and ammonia concentration were very high, and nitrate depleted, which is expected to accelerate eutrophication of Lake Soyang. Insufficient cooling of surface waters in warm winters of 1986 to 1988 seems to have enhanced the DO decrease by reducing the duration of turnover. Metalimnetic 00 minimum layer appearing every late summer at the depth 15∼20m is a remarkable feature of DO distribution which is thought to be the typical pattern in large Korean reservoirs. The mechanism of the formation of metalimnetic oxygen minimum is further to be studied. However, it seems to be caused by the higher rate of oxygen consumption in epilimnion due to high temperature and the oxygen supply limited to only surface mixed layer, since it is formed just below the mixed layer and dissolved oxygen increase gradually in deeper layer. The intermediate current of storm runoff laden with organic debris of terrestrial origin might be the alternative cause.

백서 태자 조직에서 종양유전자 단백 검출에 관한 연구

염범우,이우정 고려대학교 의과대학 1996 고려대 의대 잡지 Vol.33 No.1

It has been well known that carcinogenesis begins from alteration of specific genes, such as oncogenes and suppressor genes. Although the precise mechanism is still not known, it is generally accepted that oncogenes and suppressor genes are involved not only in carcinogenesis but also in cellular differentiation and proliferation. It is important to know oncogene found in tumors is limited to the oncogenes already presented in fetal tissues. So the author carried out immunohistochemical study with c-neu, c-fos and c-jun antisera on the DDY mouse fetal tissue of 12, 14, 16 and 18 old gestational days. The results are as fol- lows. 1. c-fos protein was present in 16, 18 days old fetal immature cartilage and intestinal mucosa. 2. c-jun protein was noted only on fetal immature cartilage of 16, 18days old fetus. 3. c-neu protein was noted on the fetal liver, intestine, glial tissue skeletal muscle and pancreas after 16days old fetus.

韓國企業의 經爭優位 確保를 위한 品質費用 決定에 관한 硏究

成範鏞,張炳奫 홍익대학교 동북아연구소 1997 東北亞硏究 Vol.1 No.-

民法에 있어서 女性地位에 관한 硏究

鄭範錫 건국대학교 1977 學術誌 Vol.21 No.1

It is declared in the preamble of our constitution that it purports to establish a new democratic republic solidifying the basic order of a free democratic system and Paragraph 1 of Article 9 of the constitution provides that "All citizens are equal before the law and there shall be no discrimination in political, economic, social or cultural life on account of sex, religion or social status." In view of the provision and spirit of our constituion, we may be able to see that in our country there is to be no discrimination at all between men and women in their enjoyment of family life, social life and life as a citizen. This ideal is the result of the development and progress of human history, and it is a principle that is also required to maintain and promote our civilization. Therefore, not only women but men shall have to endeavor to correct the reality of the discrimination between the sexes and the predominance of men over the women. Despite the provisions of our constitution, we notice not a few regulations in our Civil Code as well as other laws that are, in nature, discriminative between the sexes. These regulations must by all means be revised. However, it will take time before the revision shall be effected. Nevertheless, we cannot just idly wait and see the continued state of discrimination until the revision of the law is realized. Accepting what the present law provided, a review of theories and supreme court decisions up the now will still reveal that there have been a lot of cases whereby the scholars of jurisprodence and judges, misunderstanding the law, interpreted and applied the law discriminately against women. The present essay intends to, first of all, study and present touch cases. (1) Although presently it is generally interpreted and understood that the de facto marriage may be annulled without any restriction, that is wrong. Such marriage should be annulled only when there exists any cogent reason for which it is difficult for either of the parties to the marriage to continue the marriage. (2) Bigamy may be annulled in accordance with Article 816 of our Civil Code. This, of course, is the case whereby the parties are good-willed. When the parties, however, are illwilled, bigamy should be a marriage of nullity in accordance with Article 103 of the Civil Code. (3) No.3, Para.1, Article 1000, Civil Code, provides that brothers and sisters of the person succeeded to are entitled to succession of property. The brothers and sisters born between same father and different mothers are included and equally treated in this provision. Therefore, the brothers and sisters born between same mother and different fathers should rightly be included and treated equally in the same provision. (4) Article 1009 of our Civil Code provides that the portion of a female successor whose name is not registered in the same family register shall be one-fourth of male successor's portion. Here, the female successor whose name is not registered in the same family register is, in fact, a rightful successor whose name is registered in the family register of her husband upon marriage. This way of interpreting the present law is fairly reasonable and it is also a sound understanding and approach to enhance the principle of equal right of men and women.

敎養敎育으로서의 哲學敎育

朴凡洙 德成女子大學校 1984 德成女大論文集 Vol.13 No.-

Primary Productivity Measurement by Photosynthesis-Irradiance Model Method in Lake Soyang and the Behavior of Model Parameters

김범철,김동섭 江原大學校 附設 環境硏究所 1989 環境硏究 Vol.6 No.-

광합성-광도 모델법을 이용하여 소양호의 일차 생산력 측정과 모델 변수의 동태를 조사하였다. 일차 생산력은 댐앞 지점에서 여름에 800∼1800mgC/㎥/day로 높고 겨울에 100mgC/㎥/dayd 이하로 낮게 나타났으며, Peridiniumbipes 가 밀집되는 계곡 유입부는 댐앞 지점보다 높게 나타났다. 광합성-광도 곡선의 초기 기울기(α), 광저해 계수(β) 그리고 Ik는 식품 플랑크톤의 적응 광도 변수와 신뢰성 있는 상관관계를 보여,α β 그리고 Ik가 광적옹도의 좋은 지표로 나타났다. 또한 동화 계수는 α β와 신뢰성 있는 양의 상관관계를 보였으며 이는 소양호에서 암적응된 식물플랑크톤이 α와 β가 크고 동화 계수도 크다는 것을 의미한다. α와 β는 채수수심의 광도보다 혼합층의 평균광도와 더 놓은 상관관계를 보여 식물 플랑크톤의 적응광도는 채수 수심의 광도가 아니고 혼합층의 평균 광도인 것으로 나타났다. Primary productivity was measured by phtosynthesis-irradiance (P-I) model method in a dendritic reservoir, Lake Soyang. Primary productivity was at the mesotrophicIeveI at the dam site. Productivity at the dam site was the highest in summer, 800-1800 mgC/m' / day, and low in winter, below 100. Primary productivity was higher in stream inlet regions where the migrating dinoflagellate, Peridinium lJipes, aggregates than the open water regions. P-I curves measured under the attenuated sun light or artificial light were fitted to a three parameter model. The initial slopes of P-I curves (a). the degree of photoinhiition (P), and Ik showed positive correlation with the light level that phytoplankton undergo. Therefore, α, β and Ik are good indicators of light-adaptation. AN showed positive correlation with α and β, which means that in Lake Soyang the shade-type pytoplankton has higher α and higher AN. The mean solar radiation of the mixing zone from surface to thermocline showed higher correlation with α and β than the solar radiation at the sampling depth. Therefore. it can be concluded that phytoplankton migrate through the mixing zone and phytoplankton is adapted to the mean light intensity of mixing zone, not the light intensity at the sampling depth.

미국 금융정책변경이 한국경제에 미치는 영향

成範鎔,金汶姬 홍익대학교 경영연구소 2001 경영연구 Vol.26 No.-