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당근 현탁 배양세포의 생장과 분화에 관한 연구 - 1. 배형성 과정에서 Peroxidase 활성 , Polyamine 함량 및 Ethylene 생성의 변화
김웅식(Eung Sik Kim),김명원(Myeong Won Kim),강영희(Young Hee Kang),양덕조(Deok Jo Yang) 한국식물학회 1990 Journal of Plant Biology Vol.33 No.4
Changes of peroxidase activity, polyamine content and ethylene production during somatic embryogenesis in suspension-cultured carrot (Daucus carota L.) cells were invesigated. As compared with nonembryogenic cells and their medium, embryogenic cells and their medium were characterized by higher levels of peroxidase at all times of culture period. Peroxidase in embryogenic cells showed higher oxidation activity of IAA than in nonembryogenic cells at the torpedo stage, but the IAA oxidation activity of peroxidase released into embryogenic medium was lower than that of peroxidase released into nonembryogenic medium. Peroxidase patterns of embryogenic and nonembryogenic cells showed three cathodic bands, and one anodic band, while peroxidase patterns released into embryogenic and nonembryogenic media did not show any anodic bands and the isoelectric points of cathodic peroxidase were pH 7.7, 7.5 and 6.6. Compared with nonembryogenic cells, polyamine content in embryogenic cells was increased by 15% at the torpedo stage, but polyamine ratio was constant, and ethylene production was extremely low at all times of culture period. Therefore, it is suggested that the peroxidase in embryogenic cells is correlated with embryogenesis by regulating hormone ratios through IAA oxidation, while the peroxidase isozyme patterns may be used as a biochemical marker of embryogenesis. The increase of polyamine content and the decrease of ethylene production suggest an interaction between polyamine and ethylene during embryogenesis.
TICOM 개발을 위한 형상관리도구(TCMS)의 설계 및 구현
이준석,우원명,김웅기,박진원,Lee, Jun-Seok,Woo, Won-Myoung,Kim, Eung-Ki,Park, Jin-Won 한국전자통신연구원 1991 전자통신 Vol.13 No.2
본 논문은 행정전산망용 주전산기 II (TICOM) 개발시 적용되는 형상관리업무를 효율적이며 체계적으로 수행하기 위한 형상관리용 소프트웨어 도구 (TCMS )의 설계 및 구현에 대해 기술한다.
최정식,여성문,김웅석,채권석,Choi, Chung-Sik,Yoe, Sung-Moon,Kim, Eung-Seok,Chae, Kwon-Seok,Kim, Hak R. The Korean Society for Integrative Biology 1997 Korean journal of biological sciences Vol.1 No.3
Antibacterial activity was induced in the haemolymph of the common cutworm, Spodoptera litura by the artificial injection of E, coli Ek132. Antibacterial peptides were purified from the immunized haemolymph by heat treatment, ion-exchange chromatography, gel filtration chromatography, and reverse phase FPLC, and their physicochemical characteristics were investigated. These purified antibacterial peptides designated as spodopsin la and Ib were named after Spodoptera litura. Spodopsin la and Ib had the apparent molecular masses of 3, 823 Da and 3, 886 Da, respectively, and about 20% of the sequences had basic amino acids, such as lysine and arginine but no cysteine. Also, spodopsin l was confirmed to be a new member of cecropin family having a similar amino acid sequence to cecropin of lepidopteran insects, such as Bombyx mori and Hyalophora cecropia. The purified spodopsin was active against gram-positive as well as gram-negative bacteria.
오병환 ( Oh Byung-hwan ),김광수 ( Kim Kwang-soo ),김웅재 ( Kim Eung Jae ) 한국구조물진단유지관리공학회 1998 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.2 No.1
콘크리트 구조물의 거동해석과 정밀 안전진단을 위해서는 강도와 다양한 역학적 특성들에 대한 정확한 평가가 필수적이다. 그러나 이에 대한 직접적인 측정과 평가는 현장에서 직접 실시하기에 어려움이 있는 경우가 많으므로 비파괴 검사가 적용되는 경우가 많은데 공명주기 진동수의 측정도 이러한 기법중의 하나이다. 특히 콘크리트의 재료물성이 급격하게 변화하는 초기재령이나 적정한 규격의 시험시편을 제작 할 수 없는 실구조물의 경우 이러한 공명주기 진동수의 측정은 유용하게 적용될 수 있다. 본 연구에서는 보통강도와 고강도 콘크리트에 대하여 고유진동수를 측정하고 이를 이용하여 콘크리트의 동탄성계수를 계산하였다. 또한 이를 이용하여 콘크리트의 역학적 특성을 평가하는 다양한 관계식들에 대한 비교, 분석을 실시하였다.
서대화(Dae-Wha Seo),윤석환(Suk-Hwan Yoon),김웅기(Eung-Kee Kim),박상규(Sang-Kyu Park),박진원(Jin-Won Park),천유식(You-Seek Chun) 한국정보과학회 1991 한국정보과학회 학술발표논문집 Vol.18 No.1
본 논문은 행정전산망 주전산기인 TICOM 개발 과정에서 생성되는 형상 항목과 문서, 하드웨어 제품, 그리고 소프트웨어 제품과 같은 형상물을 관리하는 형상 관리 체계에 관해서 기술한다. TICOM 형상 관리 체계는 TICOM의 개발 체계에서 정의된 형상 항목과 형상물을 대상으로 이들의 형상 형성과 변경에 관련된 제반 관리 활동을 체계적으로 정립한 것이다.
악성고형종양 환자에 있어서 Neoplastic Fever 와 Infectious Fever 의 감별을 위한 Naproxen 의 투여
송시영(Si Young Song),김준명(June Myeong Kim),김주항(Joo Hang Kim),김웅(Eung Kim),홍천수(Chein Soo Hong) 대한내과학회 1989 대한내과학회지 Vol.37 No.4
N/A Recurrent unexplained fever as a manifestion of certain malignancies is a well described phenomenon and is usually attributed to infection related to the immunocompromised state, from either the cancer itself or chemotherapy. However, fever might originate from the tumor per se, namely neoplastic fever, and the differential diagnosis of the infectious fever and the neoplastic fever becnmes a true challenge to the clinician due to its urgency and necessity for appropriate treatment. Thus, we evaluated the antipyretic effect of naproxen in 18 febrile patients who were diagnosed with a malignant solid tumor for the purpose of differentiation of the neoplastic fever and the infectious fever. All 10 patients with neoplastic fever showed complete lysis and an afebrile stafe was sustained while the patients were maintained on naproxen. Among 8 patients with infectious fever, 4 patients showed no lysis, 3 patients partial response, and 1 patient complete lysis. Even though the naproxen dosage was increased to a dose of 250 mg every 6 or H hours in the patients who showed no response, partial response was noticed only in two patients and the remaining two patients continued to show no response. Naproxen is well known to cause gastrointestinal side effects and functional platelet defects. However, in our experience, the side effects have been minimal because most of the patients have received a relatively short course of therapy. In conclusion, naproxen appears to be a very effective tool in assisting in the differential diagnosis of infectious fever and neoplastic fever in patients with a malignant solid tumor.
결핵성 척추염 환자에서 장요근 농양제거술 후 발생한 가성 복부 대동맥류의 치험
김웅하 순천향의학연구소;Soonchunhyang Medical Research Institute 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2
Aortic pseudoaneurysm in tuberculous spondylitis is rare and thought to be caused by direct infiltration of tuberculous infection. This weaked aortic wall can be damaged by minor surgical insult and progress to dangerous pseudoaneurysm. We experienced on case of aortic pseudoaneurysm after psoas abscess curettage and treated with stent insertion and antituberculous medication.