[Hyun-seok Oh] 이미지로 세상을 편집하기

오현석(Hyun-seok Oh) (주)월간사진 2024 월간 사진 Vol.671 No.-

간세포암과 감별이 어려웠던 악성중피종 치험 1예

김선문,허원석,채경훈,강윤세,정재훈,김연수,박기오,문희석,이엄석,김석현,성재규,이병석,이헌영,신경숙,조준식,송인상,강대영 충남대학교 의학연구소 2003 충남의대잡지 Vol.30 No.2

Malignant peritoneal mesothelioma is a rare neoplasm that arises from the mesothelium of a serosal cavity and is a rapidly fatal disease with a median survival of 4 to 12 months for untreated cases. Recently, we experienced a case with malignant peritoneal mesothelioma who was suspected hepatocelluar carcioma by abdominal CT scan and was confirmed by biopsy including immunohistochemical stain(calretinin) after surgery. We performed tumor excisions and wedge resection of the liver(segment Ⅷ)and inserted Tencoff catheter in abdominal cavity at 25th day of post-operation. We treated with intraperitoneal paclitaxel(25mg/m^(2)/day for 5 days) six courses monthly. She was well tolerable and is still living without any evidence of recurrence for 14th month of post-operation.

토양으로부터 항세균성 물질을 생산하는 Streptomyces sp. 의 분리

오현정,정완석,김세재,김창진,고영환 제주대학교 생명과학연구소 1999 제주생명과학연구 Vol.2 No.-

제주도의 토양에서 분리된 방선균 307주를 대상으로, paper disc법과 시험관 희석 배양법을 사용하여 항세균성 물질을 생산하는 균주를 선별하였다. 약 3.3%에 상당하는 분리주들이 Escherichia coli 8749, Staphylococcus aureus 6538 그리고 Pseudomonas solanacearum 10692에 대해 항균효과를 나타냈고, 그 중에서 가장 높은 항균활성을 나타내는 BL93 균주를 최종선별하여 동정하였다. BL93 균주의 배양학적, 형태학적, 생리학적, 생화학적 그리고 화학분류학적 특성을 기준으로 볼 때 Streptomyces violaceus와 유사하였기에, Streptomyces sp. BL93으로 명명하였다. 이 균주가 생산하는 항세균성 물질은 butanol보다도 물에 더 잘 녹는 극성화합물로 chloroform이나 ethylacetate에는 거의 용해되지 않았다. 100℃에서 30분간 가열 처리해도 활성의 소실이 거의 없었고, pH 3∼9범위에서 안정하였다. 분리균주 BL93은 aspartocin을 생산하는 Streptomyces violaceus와 유사함으로, BL93이 생산하는 항세균성 물질의 동정 및 aspartocin과의 비교 검토가 선행되어야 할 것이다. Three hundred and seven isolates of Actinomycetes were isolated and purified from soil samples in Cheju Is. to screen antibacterial compounds. About 3.3% of the isolates showed antibacterial activity, and one of them, BL93, showed relatively higher antibacterial activity against Escherichia coli 8749, Staphylococcus aureus 6538 and Pseudomonas solanacearum 10692 by both paper disc method and tube dilution incubation method. The isolate BL93 was similar to Streptomyces violaceus based upon its cultural, morphological, physiological, biochemical and chemotaxanomic characteristics. It was designated as Streptomyces sp. BL93. The antibacterial substance produced by the isolate BL93 had higher affinity for water than butanol and was insoluble in chloroform or ethylacetate. Most of its antibacterial activity was retained even after heating at 100℃ for 30min and was stable at pH ranges 3 to 9. As the isolate BL93 was tentatively identified to be Streptomyces violaceus, the antibacterial substance preferentially need to be identified and compared with aspartocin, an antimicrobial compound produced by Streptomyces violaceus.

동아시아 경제통합의 전망과 과제

현오석 동아대학교 동아시아연구원 2006 동아시아 : 비교와 전망 Vol.5 No.-

Economic relations of countries within the East Asian region have been getting stronger in recent years. With China that has achieved rapid economic growth as a central force, countries in the East Asian region have increased the share of intra-regional trade in their trade. On the investment front, for some years, intra-regional investment was mostly concentrated on China. However, in recent years, East Asian countries have been actively looking for more investment opportunities following China. The East Asian region is also more actively working on bilateral Free Trade Agreements(FTAs) than any other continent on the globe. Countries in this region have shown a great interest in establishing an East Asia Free Trade Agreement(EAFTA) bringing the whole East Asian region into a single economic zone based on current regional FTAs. There is an expectation that an EAFTA may be realized by 2008. If an EAFTA was concluded, its economic scale would surpass that of the North Atrerican Free Trade Agreement (NAFTA) and resulting effects would be much considerable. However, it is difficult to guarantee that an EAFTA would be created by simply integrating various regional or bilateral FTAs to form a single economic community. The degree and scope of liberalization in the ASEAN integration model that has been suggested so far has turned out to be not enough to lead to an EAFTA. Therefore, it is more realistic that an EAFTA can be eventually materialized through establishing a China-ASEAN FTA, Korea-ASEAN FTA and Japan-ASEAN FTA, to which a Korea-Japan FTA, Korea-China FTA and China-Japan FTA are added.Bilateral FTAs which are now underway should serve as a foundation in creating an EAFTA. Furthermore, if these bilateral FTAs were to serve as a springboard in establishing an Asian economic community, there are a lot of obstacles to be tackled before achieving that goal. First of all, bilateral FTAs that are currently underway should be developed into more comprehensive ones. Simultaneously, mutual conformity of each individual FTA should be enhanced. In addition, the scope of FTA negotiations should include not only liberalization of commodities, but also a wide range of areas such as services, investment,intellectual property rights, competition policies, and economic cooperation, etc. What'smore, there must be more efforts to reduce the length of exception list in the liberalizationof commodities and the service sector. As there is an enormous gap in the national income among countries in the East Asian region and they have different industrial structures, it would not be easy for a simple horizontal integration to help achieve such a comprehensive FTA down the road. Therefore, it will be desirable to provide assistance programs for underdeveloped countries and to find a way for a mutual existence in the area of agriculture, the biggest obstacle in the process of establishing an intra-regional FTA. For individual countriesin the region, they should take a more positive action to facilitate restructuring of less competitive industries than other areas. In addition, there should be a consensus on the scope of participation in the EAFTA and relationships with other countries outside the region like the US. Although the scope of an EAFTA will first include the ASEAN plus three, which groups ASEAN with Korea, China and Japan, the settlement should be made about its relationships with the US, Oceania, and India which have a great influence on the economy and security of the East Asian region. There are substantial political and economic obstacles standing in the way of realizing EAFTA. Politically, the perception of a common destiny and regional identity has not been fully developed in East Asia Mistrust between China and Japan, arising from historyand the emerging rivalry for Asian leadership, may be difficult to overcome in the immediate future. Economically, because of the wide differences in development levels and different ambitions for liberalization, the regional countries will want to open up at different paces and protect different sensitive sectors. These are difficult challenges. But judging from the experience of regionalism elsewhere, they should not be insurmountable. 최근 동아시아지역 내에서는 경제적 밀접도가 점점 높아가고 있다. 급속한 경제성장을 이룩한 중국을 중심으로 동아시아 지역 내 국가들은 역내 거래 비중이 높아지고 있고, 투자 또한 그 동안 중국에 집중 되었지만 최근에는 중국에서 탈피, 여타 ASEAN 국가로의 투자도 확대되는 추세이다. 동아시아 지역은 또한 현재 세계 어느 지역보다도 양자간 자유무역협정 (FT A: Free Trade Agreement)이 활발하게 추진되고 있다. 그리고 현재 진행되고 있는 역내 양자간 FTA를 바탕 으로 동아시아 전체를 하나로 묶는 FTA. 즉 동아시아 자유무역협정 (EAFTA: East Asia Free Trade Agreement)에 대한 관심도 높아지고 있다. 2008년쯤이면 EAFTA가 실현될 것이라는 전망도 나오고 있다. EAFTA가 실현된다면 그 경제 규모는 현재 NAFTA를 능가하는 수준이며, 그 파급효과도 매우 클 것임에 틀림없다. 그러나 지금의 동아시아 역내 국가 간의 FTA가 EAFTA로 확대 발전될 수 있을 지에 대해서는 쉽게 장담할 수 없는 상황이다. 왜냐하면 지금까지 제시되고 있는 ASEAN 통합 모델을보면 자유화 정도나 그 포괄범위가 상당히 낮은 수준이어서 EAFTA로 이어지기에는 매우미흡하기 때문이다. 따라서 EAFTA는 결국 중-ASEAN, 일-ASEAN, 한-ASEAN이 체결되고 여기에 한 일, 한-중과 함께 중-일이 통합되는 것이 더 현실적일 것이다. 현재 진행되고 있는 양자간 FTA가 EAFTA의 기반이 되어야 하고, 더 나아가 「아시아공동체」구축의 출발점이 되려면 앞으로 해결해야 할 과제가 산적해 있다. 우선 현재 진행되고있는 양자간 FTA는 한 층 더 높은 수준의 FTA되어야 하고, 동시에 각 FTA 상호간의 정합성을 제고시켜야 한다. FTA 대상에 상품자유화 뿐만 아니라 서비스, 투자, 지적재산권, 경쟁정책, 경제협력 등 다양한 분야를 포합할 필요가 있으며, 상풍 및 서비스 분야의 자유화 수준 또한 예외를 최소한으로 하는 노력이 있어야 한다. 또한 현재 동아시아 내에서는 국가별 소득 수준의 차이가 심하고 산업구조도 상이하여 단순한 수평적 결합으로는 높은 수준의 FTA체결이 어렵다. 저개발국가에 대한 지원 프로그램이나 역내 FTA 체결에 가장 큰 걸림돌인 농산물 분야에서 상호 공존 방안도 찾아야 할것이다. 국가별로는 취약한 산업분야에 대한 구조조정 추진에 보다 적극적인 자세가 필요하다. 그리고 EAFTA 참여 범위와 향후 미국 등 역외국과의 관계에 대해서도 합의가 이뤄져야할 것이다. EAFTA의 범위가 우선적으로는 ASEAN+3이 되겠지만 경제적으로나 안보적으로나 동아시아에 영향력이 큰 미국, 대양주, 인도 등에 대한 관계도 정립되어야 할 것이다. EAFTA를 실현하는 데에는 현실적인 정치적, 경제적인 장애물도 있다. 정치적으로는 동아시아내 국가들은 아직 공동 목표와 지역적 동질성에 대한 인식이 충분하게 성숙되지 않은 상태이다. 역사 문제와 아시아 리더에 대한 라이벌 의식에서 야기되는 중국과 일본 간의 불신도 가까운 장래에 극복되기 어려울 것이다. 경제적으로는 동아시아 국가들 사이에 경제적 발전 수준이나 자유화 요구 수준이 크게 차이가 나고 있어 이들 각국이 원하는 개방 속도나 민감 분야가 국가별로 크게 다를 수 있다 이처럼 EAFTA 실현에는 많은 어려운 과제들이 많지만, 여타 지역에서 진행되고 있는 지역주의를 감안한다면 이런 과제들은 반드시 극복되어야 할 것이다.

Rat의 포유조절에 따른 난소와 유선의 조직학적 성상

오석두,윤창현 진주산업대학교 농업기술연구소 2000 農業技術硏究所報 Vol.13 No.-

This experiment was conducted to investigate how the lactation regulation such as restricted-lactation, early weaning during the suckling period influences on ovarian functions in primiparous rats, on the bases of change in histological characteristics of ovary and mammary gland. 1. The ovaries of rats in middle lactation stage maintained the functional corpora lutea full of cytoplasm, and those of rats in late lactation stage contained matured ovarian follicles. 2. The milk was found full in the mammary gland tissue of NL rats, but short in the tissue of RL rats, and all the alveolar tissues were degraded in mammary gland of weaned rats. The alveoli structures of mammary gland of NL rats were uniformed on Day 10, but such uniformity was lost greatly on Day 20.

장루 보유자의 생활 만족도 조사

서현석,이석환,고영관,오수명,윤충,주흥재,이기형 대한대장항문학회 1998 Annals of Coloproctolgy Vol.14 No.3

경기도 용인시(경희대학교) 주변지역의 지하수 오염현황

오종민,김홍석,진현오,윤세철 경희대학교 환경연구소 1998 環境硏究 論文集 Vol.8 No.-

Recently, the concern about groundwater pollution is increasing. And, groundwater was one of the major water resource used as drinking water by eighty percent of the world population, and its utility as industry water, agriculture water, fresh water was increasing. But, when pollution material was found in housing well, by purifying polluted water, the area of doing thorough conservation management was few. Thus, if water resource being regard as unlimited source, the right view of nature and scientific utility were essential because of the problem of its value. The purpose of this study was that investigated groundwater quality pollution condition in the part areas of Kyunggi-do Suwon Si, Yong-In Si, proposed to efficient management plan for pollution occurrence prevention and groundwater quality development by surveying groundwater pollution source. The result of the study was that the groundwater by use purpose could systematically manage water quality since development beginning, management system about groundwater development with use can established.

煉炭灰魚汁 吸着飼料의 添加가 돼지의 血液像에 미치는 영향

鄭鉉丞,李乙熙,吳錫斗,宋瑛敏 진주산업대학교 농업기술연구소 1989 農業技術硏究所報 Vol.2 No.-

煉炭灰魚汁 吸着飼料 添加가 돼지의 血液像에 미치는 영향을 조사하였다. 赤血球, 血色素量, 赤血球容積 및 血液球數는 무처리구에서 높은 편이고, 平均赤血球容積, 平均赤血球血色素量, 平均赤血球血色素濃度는 煉炭灰魚汁 吸着飼料 添加區에서 약간 높았으나, 白血球鑑別計數를 포함한 이들 모든 血液像은 정상치 범위내였다. The objective of this experiment is to investigate the effects of fish-soluble-absorbed-briquette-ash-added feed upon the hematological value of swine. RBC, hemoglobin, hematocrit and WBC were higher in the non-treated group. Mean corpuscular volume, mean corpuscular hemoglobin and mean corpuscular hemoglobin concentration were a little higher in the treated group. And all the above hematological values including differential count were within the normal range.

복잡한 지하구조 해석을 위한 물리탐사 자료 분석에 관한 연구

신득현,김훈,오석훈,서백수 江原大學校 産業技術硏究所 2007 産業技術硏究 Vol.27 No.B

Currently, geophysical method is applied for understanding the subsurface geologic structure economically and systematically, but there exists some limitations on recognizing complex subsurface structures precisely by a single geophysical method. In order to understand the complex subsurface structures, we applied various geophysical methods including seismic refraction survey, two-dimensional resistivity survey, seismic tomography survey, suspenaion-ps log, and understood distribution of low velocity, low resistivity range of resistivity survey and correlation of an intersecting point, velocity distribution of seismic tomography survey.

하드웨어 設計環境에서의 CDFG 形態에 관한 硏究

金賢培,金忠錫,朴淳東,高炳吾 新羅大學校 1991 論文集 Vol.32 No.1

In this study, design CDFG format in hardware design environment. It is used for high level synthesis in hardware design environment and supported in VHDL(VHSIC(Very High Speed Integrated Circuit) Hardware Description Language) Design Environment. This CDFG supports most of characteristic in hardware description language, concurrency, sequence, hierarchy etc. It is designed in consideration of VHDL, C, PASCAL, HardwareC. First, design CDFG and describe description rule then represent example of translation and grammar for CDFG paser.