한강의 Microflora 에 관한 연구 (제2보 ) - 춘천 및 청평저수지를 중심으로 한 한강의 식물성 plankton 과 그 계절적 소장

정영호(Yung Ho Chung),계응서(Eung Suh Kay),박덕환(Duck Whan Park) 한국식물학회 1968 Journal of Plant Biology Vol.11 No.2

The Han River was investigated monthly from April through Septemher, 1967 at Chunchon reservoir, Shin-yean, So-yang, Chung-pyong reservoir, Yang-soo-ri and Gi-doo-won to clarify the phytoplankton and to study its seasonal variation. At the same time, vertical distribution of phytoplankton was also studied from June through September at Chun-chon and Chung-pyong reservoir. The results obtained are as follows: As the environmental conditions, water temperature, dissolved oxygen, pH, and transparency were determined. The plankton samples collected from six stations were identified and classified by Engler`s classification system. It resulted in 4 phyla, 4 classes, 3 subclasses, 13 orders, 27 families, 5 tribes, 71 genera, 222 species, 1 subspecies, 51 varieties and 2 forms. The total number of Phytoplankton identified was 276. Of them, 84 species, 1 subspecies 26 varieties, 2 forms were recorded in this paper for the first time. Considering with the habitat of the total number of phytoplanktons, the highest percentage of Limnoplankton existed in the Chung-pyong reservoir. It suggests that the Chung-pyong reservoir is becoming to have the character of lake. The planktons appeared comnonly during six months at six stations belong to Chrysophyta including 22 species in 11 genera. Among these 22 species. Navicula, consists of 6 species, was the most abundant. The number of species identified uniquely at each station were 5 species in the Chun-chon reservoir, 6 in Chung-pyong and Yang-soo-ri, 8 at Shin-yean, 11 at So-yang, and 18 at Gi-doo-won. The number of species occurred at all stations were 29 in spring, 42 in Autumn and during investigation period. The maximum production of total phytoplankton was generally shown in the late spring and the early fall with differences in quantity at six collecting stations. In the Chun-chon reservoir, the high concentration of approximately 1,190,000 cells per litter in the months of August and September was due to the increase of Chrysophyte genus, Melosira and the highest concentration of approximately 2,000,000 in July at Gi-doo-won was caused Chlorophyte genus, Secenedesmus. The Chun-chon reservoir of three years old was different from the Chung-pyong reservoir of 25 years old with respect to increase in Melosira genus in August and September. After the completion of the Ui-am reservoir, though there was an increase in total density, the number of species of phytoplankton was not changed. It suggests that Ui-am reservoir is similar to the Chun-chon reservoir under the influence of the latter. The density of total phytoplankton was generally high at the depth of 2m to 5m for the two reservoirs.

大學綜合試驗 出題에 關한 硏究

卞烘圭,吳鎭坤,申鎔鎭,金泳喆,鄭求福,柳哲鍾,洪允杓 全北大學校 1977 論文集 Vol.19 No.-

The Comprehensive Examination for the undergraduate students is planned to adopt the Jeonbug National University for the purpose of enhancing the quality of its educational outputs. In order to effectively measure and evaluate the level of student progress toward the minimun standard as the students who have finished their general education and basic education for their major field study, the university has decided to make an item pool related to the subjects for the examination. This study is an attempt to make good items of five required courses among general education subjects which are Korean Language, English, Korean History, National Ethics. and Natural Science and are expected to be the subjects of the examination. Instead of making those items separately from the regular examination during the academic semesters, the university plans to collect and use good items from the usual mid-term and final examinations of those subjects. A key concern, in this study, therefore, is to analyze all the items used for the mid-term and final examinations of those subjects during the regular academic semesters. From the data of an about 100 sample in each subject at each time of total three tests, the difficulty index, discrimination index, the response rate of students on each item, and other general descriptive statistics are calculated and then good items are pooled for the future use for the Comprehensive Examination. Anhother important concern in this study is this study is given to the collection and analysis of controversial issues and problems on the process of operating the examination at other universities where the Comprehensive Examination is already adopted. The data from four institutions and from opinions of six participants of this study are used. The following main findidings are summarized : 1. The items have generally shown to be easy while the degree of discrimination is low. 2. Among the five subjects, Korean Language shows the highest rate of right answer (difficulty index) while English the strongest one in the discrimination index. 3. When comparing two types of test between the multiple choice and the short-answer, the latter seems to be powerful in both difficulty and discriminative. 4. The only one question of essay type test reveals clear limitations in scoring and evaluating students progress. 5. All items are constructed under the consideration of content-referenced base, not of the basis on behavioral aspect. 6. The analysis of issues and problems related to the Comprehensive Examination suggests that it is acceptable to test in terms of required subjects of general education and a few most basic subjects of major areas of study. 7. The examination can be functionally operated when it is held at the end of the first year of and before the beginning of the second year of the college years. The length of the examination is usally held from three to five hours. 8. Since the examination should be existed on the idea of criterion-referenced base rather than of norm-referenced one because of its testing the qualification of the entering behavior of students for the further study in their major field, the standard of the pass-and-failure should be set on at least 60 percent of correct answers in each subject. But there must be provided at least two additional opportunities for the make-up examination for those who failed in the first one. 9. A special committee must be established in order to deal with all the details related to the Comprehensive Examination.

東獨의 計劃經濟體制의 運營과 問題點

丁榮變 건국대학교 1990 學術誌 Vol.34 No.1

The Berlin-Wall is broken down and the frontier of the state is wide opened. The 'Socialist Unit Party in Germany' is planning to change its name and to ged rid of the Stalin's centralism. The party has promised to take a secret voting system according to the principle of freedom and equality and to reform the economy within the socialist system. It is difficult to forecast how the structure of the party and its relation to the state would be changed. But an important forctor of human society is the economic strengh to abolish relative and ablolut poverty and to supply material and unmaterial needs. Now as a result of the inconsistency in the monetary and the natural planning in the East Germany exist a permanent shortage of consumtive goods and a lasting reduction in value of the money. Consumer sovereignity is not respected and black market is wide extended. Therefore the problem of the planned economic system will also have influence on the future of the East Germany and the socialism itself.

사립대학 내·외부의 합법적 제도모순에 대한 고찰 : 현행 사립학교법 개정논의와 국립대학과의 경쟁관계를 중심으로

정영섭 건국대학교 사회정책연구소 2001 사회과학연구 Vol.14 No.1

化學物質의 초파리 突然變異 誘發性에 관한 硏究

鄭瑢載,嚴英華 梨花女子大學校 韓國生活科學硏究院 1979 韓國生活科學硏究院 論叢 Vol.23 No.-

환경성 돌연변이 유발원 검출을 위해 고안된 여러 시스템들 중에서도 초파리 시스템은 특히 여러가지 이점을 지니고 있다. 초파리에서의 양성 대조군, EMS와 Thio-TEPA 및 metronidazole의 돌연변이 유발성을 반성 열성치사법으로 조사한 결과는 다음과 같다. 1. EMS는 1% sucrose에 0.0125M을 혼합시킨 용액에서 35~50%의 강한 돌연변이 유발성을 나타낸다. 2. Thio-TEPA는 5*10^-4M의 농도에서 약한 치사인자 출혈을 나타냈으며, 1*10^-4M에서는 그 유발능력이 감소되는 경향을 보였다. 3. metronidazole은 대조군과 마찬가지로 치사인자 빈도의 유의적 차이가 없는 것으로 나타나고 있다. Drosophila offers many advantages for the detecting of mutagenic activity of enviromental mutagens. It provides the quickest assy system for decting mutagens in animals today. The present investigation was undertaken in an attempt to detect the mutagenicity of thio-TEPA, metronidazole and EMS in the Driosophila system by the sex-linked recessive lethal test. The results obtained are presented below : 1. The concerntration of 0.00125 M EMS(in 1% sucrose), an alkylating agent, induced about 35~50% sex-linked recessive lethals in Drosophila and showed strong mutagenic acticity. 2. Thio-TEPA(in 1% sucrose) revealed slight mutagenicitty in the concentration of 5 * 10 M, but in the concentration 1 *10 M, mutagenicity was slightly decreased. 3. The sex-linked recessive lethal test with metronidazole showed a negative result, suggesting that metronidazole may be not mutagenic Drosphila.

우리나라 매스컴의 경제보도기능에 관한 소고 : 4대 경제전문일간지를 중심으로

정영섭 건국대학교 사회정책연구소 2000 사회과학연구 Vol.13 No.-

rc유전자(실명 돌연변이) 가 수탉의 정소발달과 정자형성기능에 미치는 영향

정영채,김창근,Cheng,K.M. 中央大學校 遺傳工學硏究所 1999 遺傳工學硏究論集 Vol.12 No.1

본 연구는 상염체성 열성돌연변이 rc유전자가 수탉에서 성성숙전의 정소발달과 정사생산기능에 미치는 영향을 조사하기 위하여 시도되었다. 세유전자형에서 모두 양측 정소무게가 20주령 때 크게 증가되었다. 20주령 rc/rc의 정소무게는 다른 두유전자형보다 현저히 작았다. 12∼20주령사이의 T₄수준변화는 세유전자형에서 차이가 없었으며 18∼20주령에서 현저히 증가하였다. 그러나 rc/rc에서는 T₄의 상승시기가 정상보다 늦었다. 20주령때 세정관 직경이 rc/rc는 Rc+/rc와 같았으나 Rc+/Rc+보다는 현저히 작았다. 16∼20주령때 정소내 세정관 총길이는 rc/rc에서 Rc+/Rc+보다 현저히 짧았고 Rc+/Rc+와 Rc+/rc간에는 차이가 없었다. 16주령때 정자형성 Ⅲ기에 도달된 개체가 Rc+/Rc+와 rc/rc가 각각 80%와 20%였으며 20주령에서는 Rc+/Rc+와 Rc+/rc에서는 50%이상이 Ⅵ기에 도달되었으나 rc/rc에서는 전혀 없었다. rc/rc의 정소내 1일 정자생산은 Rc+/Rc+의 46%였다. 이상의 결과에서 rc유전자가 호모일 때 정소발달이 크게 지연되었으나 T₄생산에는 영향이 없었다. 또한 rc유전자의 작용이 정소에 직접 또는 간접 효과인지에 대해서는 분명하지 않았다. This study was undertaken to investigate the pleiotropic effects of rc gene, autosomal recessive mutation known to cause retinal degeneration and blindness on the testicular development during prepubertal period and daily sperm production in the cockerels. Paired testes weights in all three genotypes were significantly increased at 20 weeks of age. The testes weight of 20-wk-old rc/rc cockerels was significantly lighter than those of the other two genotypes. The changes in plasma T₄levels from 12 to 20 weeks of age did not differ between the three genotypes. The T₄levels greatly increased at 18th and 20th week, but the rc/rc males showed the delayed increase in T₄ levels compared to the normal males. At 20 weeks of age, the diameter of seminiferous tubules in the rc/rc males was similar to the Rc+/rc males, but significantly smaller than in the Rc+/Rc+ males. The total length of seminiferous tubule at 16 to 20 weeks of age was significantly shorter in the rc/rc than in the Rc+/Rc+ males, but was not different between the Rc+/Rc+ and Rc+/rc+ males. The proportion of males reached Stage Ⅲ of spermatogenesis at 16 weeks of age was 80% for the Rc+/Rc+and 20% for the rc/rc males. At 20 weeks of age, over 50% of the Rc+/Rc+ and Rc+/rc males reached Stage Ⅵ, but no males reached this stage were in the rc/rc males. Daily sperm production per testis of the rc/rc males attained 46% of the Rc+/Rc+ males. In conclusion, the rc gene, when homozygous, delayed the testicular development, but did not reduce T₄production. It was not clear whether the rc gent is acting directly or indirectly on the testes.

사람 末梢血液 淋巴球의 分離와 그 LDH Isoenzyme에 關하여

鄭弘根,朴壽根,崔榮,金英國,金昇元 中央醫學社 1972 中央醫學 Vol.23 No.5

The present paper describes the result obtained with lymphocytes separated from the peri - pheral humam blood by the method of Kim et. al(1970) and the LDH isoenzyme pattern of lymphocytes after sonicating the cells, which showed binomial distribution of LDH1 through LDH5, showing 11, 26, 44, 14, and 5% of activities respectively, with 56.0% of the H-subunit.

社會主義 몰락의 經濟制度的 원인 : - 東獨과 北韓의 경우를 중심으로 - - Im Fall der DDR und des Nordkoreas -

丁榮燮 건국대학교 1993 學術誌 Vol.37 No.1

Der Staat DDR ist schon zusammengebrochen, und Nordkorea bemu¨ht sich mit allen Mitteln, sein sozialistisches System zu bewahren. In diesem Artikel werden die Ursachen untersucht, warum sich der reale Soaialismus nicht weiter entwickeln konnte. Zuerst werden die wirtschaftlichen Geschichte beider La¨nder kurz vorgestellt, und die Eigentumsverha¨ltnisse und die Betriebsformen in den Produktionsbereichen Landwirtschaft, Industrie und Binnenhandel untersucht und deren problematik ero¨rtert. Danach werden die Planungsverfahren in den realen und den moneta¨ren Bereichen der Wirtschaft kurz geschildert und in ihren Funktionsweisen bewertet. Theoretische und praktische Widerspru¨che und Fehlem sind erkennbar, die den realen Sozialismus daran hindern, sein Ziel zu erreichen.

Gerhart Hauptmann의 희곡 "직조공"(Die Weber)에 관한 小考

鄭永敎 培材大學校 1985 論文集 Vol.7 No.-

"Die Weber" (1892) ist ein Drama, das einer der deutschen beruhmtesten Dichter Gerhart Hauptmann geschrieben hat. Durch dieses Drama hat er konsequenten Naturalismus auf die Hohepunkt erreicht. Er ist ohne Zweifel einer der umstrittensten deutschen Dichter der vergangenen funfzig, sechzig Jahre. Er hat "Die Weber" auf die neue Art uud Weise geschrieben und es im Jahre 1892 veroffentlicht. "Die Weber" gewinnen ein eigenes Gewicht, weil sie sich nicht mit einem begrenzten Figurenkreis begnugen, sondern die Katastorophe einer Menschengruppe, eines Berufsstandes darstellen. Als Drama hat es nicht einen Helden, sondern viele Menschen gegen vierzing Hauptpersonen. Und der Held ist hier "die Not", eigentlich das Volk in seinem hier vergeblichen Kampf gegen die Not. Daβ das Schicksal und Tun der Weber als Masse im Wirbel der groβen und kleinen Sachen im Gang sind, ist gar neue Form. "Die Weber" quellen von echtesten Leben uber. Darin konnen wir die Trauer und des Elend sehen, deshalb ist sein Drama ein schicksalhaftes Trauerspiel. Der Mensch ist ein Tier, das vor Hunger odor Liebe zu Taten der Verzweiflung getrieben, von bosen Menschen gequalt wird. Aber in seinem Drama zeigt sich der Tod eine Erlosung. Zu Hauptmann ist der Tod kein Tod, sondern eine Brucke zum Gott,d.h. einer Erlosung. Immer geben schlesischen Hauptmanns Werke tiefere Bedeutung hinter den Worten seines Werkes ein. Darum bedeutet des Alten Hilse Worte schon eine religiose Erlosung in den "Webern". Auch darin zeigt sich daβ sich Hauptmanns starkes Mitleid der Aemen als Erlosungs gedanke darstellt.