• Title/Summary/Keyword: 1980s

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Corrected transposition of the great arteries: surgical treatment of associated anomalies (교정형 대혈관전위증동반된 심혈관기형의 수술요)

  • Kim, Gi-Bong;No, Jun-Ryang;Seo, Gyeong-Pil
    • Journal of Chest Surgery
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    • v.17 no.3
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    • pp.371-380
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    • 1984
  • Corrected transposition of the great arteries [C-TGA] is one of the rare congenital heart disease in which there is both a discordant atrioventricular relationship and transposition of the great vessels. With this arrangement, systemic venous blood passes through the right atrium into the morphologic left ventricle and out the pulmonary artery. Pulmonary venous blood returns to the left atrium, flows into the morphologic right ventricle and out the aorta. Thus, in the rare case when no additional cardiac anomaly is present, a hemodynamically normal heart exists. But more often they are symptomatic as a result of one or several of the commonly associated defects. This paper describes 13 patients who underwent repair of one or more cardiac anomalies associated with corrected transposition at SN UH, from June 1976 through June 1984. 1.8 were males and 5 females, with ages ranging from 3 years to 27 years. 2. Segmental anatomy was {S,L,L} in 12, or {I,D,D} in 1. 3.Associated anomalies were ventricular septal defect in 10, pulmonary outflow tract obstruction in 6, tricuspid insufficiency in. 4, atrial septal defect in 3, subaortic stenosis in 1, mitral insufficiency in 1, and patent ductus arteriosus in 1. 4.None had complete heart block preoperatively, and 3 developed complete heart block intraoperatively. But one of them recovered sinus rhythm on the postoperative 7th day spontaneously. 5.There were 3 cases of hospital morality. But there was no morality since Dec. 1980. 6.Patients with single ventricle, hypoplastic ventricle or those who had palliative surgery alone are not included in this review.

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RNA Production from the Hydrolyzate of Sliced and Dried Sweet Potatoes. (절간고구마를 이용한 RNA 생산에 관한 연구)

  • 이종임;송재철;조원대;양한철
    • Microbiology and Biotechnology Letters
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    • v.8 no.1
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    • pp.9-18
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    • 1980
  • During an extensive screening tests of yeasts for their RNA formation, it was found that Cryptococcus laurentii had especially high RNA content and high dry cell weight, when hydrolyzate of sliced and dried sweet potatoes was used as a carbon source. Growth conditions of this strain were examined, and the most desirable results were obtained at 48 hours of cultivation on a reciprocal shaker at 3$0^{\circ}C$ with initial pH 6.0. Under the above conditions, the RNA content and yield of dry cells were investigated using various media compositions. Ammonium sulfate 0.40%, peptone 0.6 %, and yeast extract 0.4% were appeared to be favorable as a nitrogen sources. The optimum concentrations of K $H_2$P $O_4$, M $n^{++}$, C $O^{++}$ were 0.05 %, 0.1 %, and 0.001 %, respectively. Ca-pantothenate, 400$\mu\textrm{g}$/$m\ell$, showed relatively favorable effects as a growth factor. The maximum RNA content obtained in this study was 16.8 % of the total dry cell weight.t.t.

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Studies on the Population of Toxigenic Fungi in Dried-Persimmon -Screen test of Aflatoxin- (저장건시 중의 유독성 곰팡이에 관한 연구 -Aflatoxin 유무의 검색에 관하여-)

  • 주현규;권우건
    • Microbiology and Biotechnology Letters
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    • v.8 no.4
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    • pp.237-245
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    • 1980
  • Microorganisms growing on Dried-Persimmon have heed isolated ana identified. Fluorescent substance were extracted from a putrefactive Dried-Persimmon after invaded Toxigenic Fungi, and compared with Aflatoxin by Thin layer chromatography and u. v. absorption spectra. The results obtained were summarized as follows: 1) Fungal invasion was frequently appeared at the beginning of storage, and after then Bacteria invasion was followed. 2) Several Genera of microorganisms (Aspergillus sp., Escherichia sp., Mucor sp., Alternaria sp., Penicillium sp. ) were observed in Dried-persimmon during storage. Aspergillus sp., one of all Genus was predominant. 3) Two strains (Aspergillus flavus Group, Penicillium citrimum Series) of 6 Fungi had Fluorescent substance, which was presumed Aflatoxin-like substance. 4) The Rf value of T. L. C. ana λ max of u. v. absorption spectra showed the same value as the standard of Aflatoxin. It is suppose that the Fluorescent substance in Dried-Persimmon is a Aflatoxin-like substance.

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A Study on the Characteristics of the Floor Plan in Luxurious Row-Houses (고급연립주택의 평면구성 특성에 관한 연구)

  • 라윤주;오혜경
    • Archives of design research
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    • v.14 no.4
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    • pp.209-216
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    • 2001
  • The purpose of this study was to find out the characteristics of the floor plans of luxurious row-houses. The examined objects were 135 floor plans with the individual exclusive space of 50 pyung or more which collected from the solicitations for sale or the magazines of architecture, housing, or interiors. The major findings were summarized as follows: First, it is revealed that as the floor size become bigger, the appropriate additional spaces such as second family room, lounge hobbyroom and Atelier are formed instead of increasing room size. Second, it is revealed that the L- DK type was the most common in LDK system. Third, it is revealed that the master's zone composed generalized layout of 4 sections such as bedroom, sittingroom, bathroom, dressingroom. Fourth, it is revealed that the multifunctional room exist as a individual space located next to the kitchen. It used to be a post of rear balcony.

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The Revolution Trend in Engineering Education in China (중국의 공학교육 개혁 동향)

  • Lee Choon-Geun
    • Journal of Engineering Education Research
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    • v.1 no.1
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    • pp.43-56
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    • 1998
  • This thesis examined the main revolution trend of Chinese engineering education system which is closely related to the demand of the industrial world. The reasons for which China tried to revolutionize engineering education were as follows ; firstly, the lack of high-qualified and professionalized man power in the industrial world. Secondly, the rupture in the age structure and thirdly, graduate students' insufficient ability to adapt to the industrial companies. These situation had been influenced by professional education after the fashion of the Soviet Union and the Cultural Revolution. Thus, since 1980s, government have extended man power supply through various ways and maintained equilibrium between supply and demand within the industrial world. Also, government began to retrian the existing engineers, magnify the regular number in college students of science and engineering and treat an experienced man favorably in graduate schools. The State Education Commission leaded in searching for the ways to train engineers and testing the master of engineering training system. As an essay at reform, many attempts will be tried ; bringing-up excellent students, the system of multi-degrees, field work, bachelor-master integration management, the system of master and doctor by thesis, strengthening educational-industrial cooperation, experimental school, adult school, and local school. Until 21c to come, this trend will be accelerated on.

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Vegetational Structure of Orchardgrass Sward Ⅰ. Changes of dry matter production by the times of year and its relation both morphological and structual characteristics (Orchardrass의 植生構造 Ⅰ. 乾物生産性의 經年的 變化와 形態的, 構造的 形質과의 關係)

  • Lee, Joo-Sam
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.8 no.2
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    • pp.77-84
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    • 1988
  • This experiment was conducted to investigate the morphological and structual characters and the dry weight of plant (DW/pl.) concerned vegetational structure of orchardgrass pastures by the times of year, from 1 year to 7 year previous, 1986 through 1980, alternately. this experiment was carried out on the experimental fields of Yonsei University. The results are summarized as follows: 1. Population density (PD) was extremely decreased by the times of year. 2. Pasture productivity was highest at 3 year old pasture, was lowest at 5 year old pasture and was recovered at 7 year old pasture. 3. Recovery of pasture productivity was followed the increase of dry weight of plant (DW/pl.) and number of tillers per plant (NT/pl.) 4. The population density of 7 year old pasture was 14 plants per square meter. 5. The number of tillers per plant (NT/pl.), dry weight of plant (DW/pl.) plant length (PL), and plant size (PS) was frequently showed the highest values by the times of established year. 6. The stubble diameter (DIA), stubble area (SB), plant size (PS), distance between neibour plant (DIS) and leaf area index (LAI) was increased according to the times of year. 7. The dry weight of plant (DW/pl.) was positively significant correlations with the number of tillers per plant (NT/pl.) all of the established pastures, but the dry weight of a tiller (WT) was tended to increase of correlations with the dry weight of plant (DW/pl.) by the times of year. 8. Differences between morphological and structual characters was recognized according to the times of year.

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Pulmonary stenosis and pulmonary regurgitation: both ends of the spectrum in residual hemodynamic impairment after tetralogy of Fallot repair

  • Yoo, Byung Won;Park, Han Ki
    • Clinical and Experimental Pediatrics
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    • v.56 no.6
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    • pp.235-241
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    • 2013
  • Repair of tetralogy of Fallot (TOF) has shown excellent outcomes. However it leaves varying degrees of residual hemodynamic impairment, with severe pulmonary stenosis (PS) and free pulmonary regurgitation (PR) at both ends of the spectrum. Since the 1980s, studies evaluating late outcomes after TOF repair revealed the adverse impacts of residual chronic PR on RV volume and function; thus, a turnaround of operational strategies has occurred from aggressive RV outflow tract (RVOT) reconstruction for complete relief of RVOT obstruction to conservative RVOT reconstruction for limiting PR. This transformation has raised the question of how much residual PS after conservative RVOT reconstruction is acceptable. Besides, as pulmonary valve replacement (PVR) increases in patients with RV deterioration from residual PR, there is concern regarding when it should be performed. Regarding residual PS, several studies revealed that PS in addition to PR was associated with less PR and a small RV volume. This suggests that PS combined with PR makes RV diastolic property to protect against dilatation through RV hypertrophy and supports conservative RVOT enlargement despite residual PS. Also, several studies have revealed the pre-PVR threshold of RV parameters for the normalization of RV volume and function after PVR, and based on these results, the indications for PVR have been revised. Although there is no established strategy, better understanding of RV mechanics, development of new surgical and interventional techniques, and evidence for the effect of PVR on RV reverse remodeling and its late outcome will aid us to optimize the management of TOF.

Japanese Companies Investment in China After Chinas Entry into WTO (중국(中國)의 WTO가맹(加盟)에 의한 일본기업(日本企業)의 대중투자(對中投資)에 관한 연구(硏究))

  • Wang, Guo An;Choi, Seok-Beom
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.23
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    • pp.341-372
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    • 2004
  • Since China was admitted to the World Trade Organization (WTO) on December 11, 2001, China has sped up its active participation in the competition of the world economy by lifting its trade and investment restrictions and limits. Its trading system is getting more and more free and its huge market with a population of 1.3 billion has been getting more and more open. With Chinas WTO accession, China has been honoring its commitments to its WTO members by complying with international business practices and WTO rules. For example, it will cut down its import tariffs for automobiles from the present 80% to 25% by 2006. Its financial sector and service industries are open to foreign investors now. As Chinas biggest business partner, Japan has benefited tremendously from Chinas open policies and deepening economic reform. In order to reduce the costs of production, a large number of enterprises from Japan have set up production bases in China since a Chinese workers wages accounts for only one tenth of those of a Japanese worker on the average. Japan has become one of Chinas biggest investors on a par with the United States of America (USA). How are the Japanese enterprises in Japan and in China adjusting themselves to the rapid changes of the Chinese market? What characteristics do the Japanese enterprises in China have? What effects has Chinas WTO accession had on those Japanese enterprises that have invested in China? This paper finds answers to the above questions. It at first reviews the Sino-Japanese economic and trade relations since 1980s, then analyses the situation and characteristics of Japanese-invested enterprises in China, and explores their problems in China. Finally it puts forward some suggestions for the Japanese enterprises in China.

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A Study on the Using Situation in Korea and Suggestions for Improvement of INCOTERMS (우리나라 무역업계의 INCOTERMS 사용현황과 개정방향에 관한 고찰)

  • Park, Kwang-So;Kim, Jae-Seong
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.43
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    • pp.53-74
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    • 2009
  • INCOTERMS have been changed almost every 10 years since ICC established INCOTERMS as trade terms for International transaction. Recently transportation has become bigger, and modernized by means of electronic appliances such as RFID, IT, and containerization. FRC, FOR/FOT, FOA were added in INCOTERMS1980 and every conditions are unified into three alphabets in INCOTERMS1990. The best features of INCOTERMS2000 are that FCA substitute FRC, FOR/FOT, FOA and customs formalities were simplified to make clear for each party of contract. It seems that business circles still stick to old customs of their trade like FOB or CIF not only in Korea but in an international practice even though there have been several revisions of INCOTERMS until now. ICC have tried to provide INCOTERMS3000 to solve problems between a theory and an actual condition of international trade. This study has tried to suggest opinions against INCOTERMS3000 and has surveyed a recognition, an actual using situation and issues of INCOTERMS to get improvements. For a recognition of INCOTERMS has been spread as you can find at tables many kinds of business circles still stick to old customs of their trade terms FOB and CIF. Now there are two alternative plans. Firstly, we need to suggest improvements against inconsistency of INCOTERMS to be applied on newly revised INCOTERMS3000 and educating business circles to use proper conditions of INCOTERMS for their doing business. Secondly, we shall participate in revising INCOTERMS to activate multimodal transport conditions of INCOTERMS and provide solutions to fill gap between a theory and an actual condition of international trade. It seems that terms of multimodal transport such as FCA, CPT, or CIP can be a perfect condition for each party of contract. We have examined the inconsistent features of Ship's rail and notions of on board, and observed how to activate multimodal transport terms. These would be hot issues of next revision of INCOTERMS and we provided improvements on each trade terms, THC charges, or others against INCOTERMS.

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Korean Geographers' China Studies : Inventory and Prospect (한국(韓國) 지리학계(地理學界)의 중국연구(中國硏究) : 현황(現況)과 과제(課題))

  • Lee, Kang-Won
    • Journal of the Korean association of regional geographers
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    • v.10 no.2
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    • pp.235-251
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    • 2004
  • This article is a review on the Korean geographers' China studies. There were severe limits to make China study in Korea during the Cold War Period. Since 1992, the fear of Korea-China establishment of diplomatic relation Korean geographers' China studies have been increased substantially Until December 2003, 89 articles were published on the journals related to geographical study, and 9 Ph.D. dissertations were submitted to graduate school departments of geography or geography education in Korea. This is an evidence of the rapid development of China study in Korean geographical society. Early 1990s, geographers of Yanbian university located in northeast China played an important role in the development of research. After the period, Korean domestic geographers' studies have also increased. There has been a distinct progress in the fields of economic and urban geography. However, the development of theory, diversification of themes, and professional study in the macro-regional scale could be proposed as the tasks of future research.

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