토양중 게르마늄 농도에 따른 벼의 생육 특성 및 게르마늄 흡수

이성태,이영한,최용조,이상대,이춘희,허종수 한국환경농학회 2005 한국환경농학회지 Vol.24 No.1

게르마늄의 약리효능이 알려짐에 따라 게르마늄이 깅화된 기능성 농산물의 요구도가 높아지는 추세이다. 본 연구는 게르마늄의 농업적 이용에 대한 기초 사료를 제공하고자 실시하였으며, 벼의 생육 및 게르마늄 흡수에 미치는 게르마늄처리 효과는 다음과 같다. 게르마늄을 0, 2.5, 5.0, 7.5 및 10.0 mg/kg으로 처리할 토양을 와그너포트에 넣어 벼를 재배힌 결과, 게르마늄 처리농도가 증가할수록 게르마늄 독성의 증가로 초장, 수장, 수수 및 수량이 급격히 감소하였으며 게르마늄 2.5 mg/kg 이상에서는 게르마늄 독성이 발생하였다. 게르마늄 처리농도가 증가할수록 벼의 게르마늄 흡수랑은 증가하였으나 벼의 게르마늄 이용율은 게르마늄 2.5, 5.0, 7.5 mg/kg 처리에서 각각 20.7, 12.5 및 7.5%로서 게르마늄 처리농도가 증가할수록 감소하였다. 벼의 부위별 게르마늄 함량은 볏짚>왕겨>현미 순으로 높았다. 게르마늄 2.5 mg/kg 처리시 볏짚, 왕겨 및 현미의 게르마늄 함량은 각각 103.4, 30.2 및 3.02 mg/kg 이었고, 볏짚과 왕겨에서는 게르마늄 무처리에서도 각각 2.9 및 3.9 mg/kg을 함유하고 있었다. 쌀의 아미노산 함량을 분석한 결과 게르마늄 처리농도가 증가할수록 Asx., Thr., Ser. 등 대부분 종류의 아미노산 함량이 증가하였으며, 그 결과 현미중 질소흡수량도 증가하였다. In order to obtain the basic information for agricultural utilization of Germanium(Ge), the growth characteristics and Ge absorption of rice plant were investigated with different Ge concentration in soil. Ge concentrations were treated with 0, 2.5, 5.0 7.5 and 10.0 mg/kg in pot(1/5,000a), respectively. As higher the Ge concentration in soil, the Ge absorption amount in straw, husk and brown rice were increased. But the yields were decreased with the increase of Ge phytotoxicity. When rice plant was grown more than 2.5 mg/kg Ge(as GeO₂) in the soil, growth was inhibited by germanium phytotoxicity and necrosis spots were observed in the rice leaf blades. Therefore the optimum concentration of Ge was less than 2.5 mg/kg in rice plant. When rice plant was cultivated on soil supplemented with 2.5 mg/kg Ge, Ge content in straw, husk and brown rice was 103.4, 30.2 and 3.02 mg/kg, respectively. The Ge content in plant was high in the order of straw > husk > brown rice. Most of the amino acids in rice were increased with the increase of Ge treatment, besides, total amino acid contents also increased.

전격성 경과를 취한 만성 호산구성 폐렴 환자 1예

윤호상,진춘조,유광하,이상엽,이수인,정상만,김선두,이순제,이길도,전혜정 건국대학교 의과학연구소 2000 건국의과학학술지 Vol.10 No.-

Chronic eosinophilic pneumonia(CEP) is a rare disease of unknown etiology characterized by chronic infiltration of the lung with eosinophils. It presents with profound systemic symptoms comprising fever, night sweats, weight loss, dyspnea and blood eosinophilia with nonsegmental air-space consolidation confined to the outer third of the lung, the "photographic negative of pulmonary edema". Histopathologic features of chronic eosinophilic pneumonia are intraalveolar and interstitial infiltrations with eosinophils, histiocytes, giant cells, scattered lymphocytes and plasma cells. Glucocorticoid therapy cause prompt resolution of symptoms as well as disappearans of blood eosinophils, elevated serum Ig E levels and the roentgenographic lesions. Infrequent radiographic findings include nodular infiltrates, consolidations, cavitations, atelectasis and pleural effusions. Deaths from CEP although rare, have been reported, but the majorities of CEP have benign courses and do not need a therapy with ventilator. We report a case of chronic eosinophilic pneumonia, which had a sudden course associated with diffuse pneumonic consolidations on the both lung and bilateral pleural effusion.

光州川의 水質管理에 의한 榮山江水質의 改善效果

朴成天,李相俊 東新大學校 工業技術硏究所 1997 工業技術硏究 Vol.3 No.-

This paper purpose of presenting the improvable effect of the Youngsan River water quality according to management of the Kwangju Chun water quality. QUAL2E model, the estimate model of the water quality is used in this paper. The river length of study-basin is 60.0km in middle channel of the Youngsan River. The river length is divided into 60 elements, and those are divided into 6 reaches. This paper focused on the improvement effect of the Youngsan River-water- quality, with water quality management degree of the Gwangju Chun and clean water inflow degree of the Youngsan River. As a result of estimate, the Youngsan River BOD concentration-regression equations that were based on BOD concentration of the Gwangju Chun and inflow clean water of the Youngsan River considerating the Gwangju Chun BOD concentration.

서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1996)

김재홍,황동규,전재홍,김윤석,김중환,김용준,이창균,임동진,김현수,조창근,김경문,박상훈,전우형,김희성,이호정,차명수,김갑형,김형석,김석우,황지환,박병순,권오상,이민수,송기훈,성소영,이인섭,부태성 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2

Background : In recent years, gonorrhea has been panedemic and remains one of the most commom STDs in the world, especially in developing countries. Objective & Methods: For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results: In 1996, 139 strains of N. gonorrhoeae were isolated, among which 53(39.0%) were PPNG. Conclusion: Our results suggests that after a peak of 74.3% in 1993, the prevalence of PPNG in Seoul is gradually declining.

흰쥐피부에서 7, 12-Dimethylbenzanthracene의 발암효과에 관한 병리학적 연구

이준우,김형춘,이정빈,박상철,송계용 중앙대학교 의과대학 의과학연구소 1988 中央醫大誌 Vol.13 No.1

To observe the carcinogenic effects of 7, 12-dimethylbenzanthracene modulated by the application of phorbol ester and changes of administration route of DMBA, a pathological study was carried out on the female rates of 50 days-old by analyzing incidence, histopathological progession and relationship of administration route and/or the application in acute and chronic experimental groups. The results were as follows: 1. Tumor incidence was higher by the oral administration than topical application of DMBA and earlier tumefaction was noted by the application of the promotor. 2. Early histopathological changes were mild acanthosis and moderate inflammation by the promotor and more prominent acanthosis and papillomatosis by additional DMBA with repeated promotor application. 3. Most common tumor was adenocarcinoma even in topical application of DMBA, followed by fibroadenoma, fibroma and squamous cell carcinoma. Incidence of fibroma was increased by topical application of DMBA. 4. Histopathological patterns of the tumors were mixed, cribriform, microglandular, clear cell and solid types. Some of them showed background of adenomtous or fibroadenomatous tumors. 5. In oral administration group of DMBA, the increased tumor incidence was noted in topical applied area than non-applied area. Therefore, it was suggested that carcinogenicity of DMBA was promoted by phorbol ester, inducing adenocarcinoma of various hitopathological types. The change of administration route of the carcinogen could cause the histopathologic difference in tumor types.

소의 심장 cytochrome c oxidase의 전자전달 특성

李相稷,呂基淑,李在亮,郭天錫,尙瑛錫 嶺南大學校附設 基礎科學硏究所 1988 基礎科學硏究 Vol.8 No.-

Cytochrome c oxidase (complex Ⅳ) was isolated from bovine heart mitochondrion. The spectra of isolated cytochrome c oxidase which was considered to be oxidized showed absorption bands at 598nm and 421nm in the oxidized form and at 604nm and 443nm in the reduced form. The activity of cytochrome c oxidase measured by the redox system of ferrocytochrome c-oxygen was not affected by NH₄OH and ethylenediamine. It was, however, found that 2-mercaptoethanol and potassium cyanide inhibited its reactivity respectively.

Ornithogalum thyrsoides의 엽삽기간중 시비가 자구발엽에 미치는 영향

이천수,최상태,박우철 진주농과대학 1970 진주농과대학 연구논문집 Vol.- No.9

Experiments were carried out to clarify the effects of NPK content of fertilizers on the development of leaves out of new bulblets, and to investigate the relationship between the state of fleshness of a new bulblet and the weight and the number of leaves that develop from it. The results were obtained in this work as follows: 1. It was found that, of the three fertilizer elements studied, only nitrogen influenced the development of leaves from new bulblets in leaf cuttings; phosphorus and potassium seemed to have no effects. 2. The application of fertilizer during the final stage of bulblet formation was found to be more effective than fertilizer treatment at the stage when the bulblets begin to grow fleshy.

전문가 시스템과 가상현실의 통합에 관한 연구

이상용,정동춘 公州大學校 基礎科學硏究所 1998 自然科學硏究 Vol.7 No.-

전문가 시스템의 사용자 인터페이스는 초창기 텍스트 기반에서 시작하여 현재 멀티미디어 기반까지 발전하였다. 하지만 미리 정해져 있는 각본대로만 정보를 보여줄 수 있는 한계가 남아있기 때문에, 사용자는 보다 Interactive하면서도 현실감 있는 인터페이스에 대한 욕구가 남아있다. 이 욕구를 만족시킬만한 사용자 인터페이스로써 본 논문에서는 가상현실을 제안하고 있다. 가상현실은 정보의 훼손 없는 전달을 보장하며, 인간 중심의 인터페이스이기 때문에 사용자가 쉽게 접근할수 있으며, 추론 결과도 감각적으로 용이하게 이해할 수 있다. 또한 지식 모델링 부문에도 가상현실은 높은 효율성을 제공할 것이다. 가상현실이 아직은 기술적으로 과도기에 있지만, 다양한 컴퓨터 시스템 영역에서 가상현실을 사용자 인터페이스로써 도입하려는 움직임에 맞춰, 전문가 시스템에서도 이를 수용하는 노력이 시작되어야 할 것이다. 본 논문에서는 가상현실을 도입했을 경우 전문가 시스템의 구조를 제시하고 간단한 실험 결과를 제시한다.

Isolation and Transcriptional Expression of CuZn Superoxide Dismutase from Codonopsis lanceolata

Lee,Kang,In,Jun-Gyo,Yu,Chang-Yeon,Yun,Song-Joong,Min,Byung-Hoon,Rho,Yeong-Deok,Kim,Moo-Sung,Yang,Deok-Chun 한국자원식물학회 2004 Plant Resources Vol.7 No.3

To investigate the defense mechanism against the abiotic stress, a cDNA clone encoding a CuZn superoxide dismutase (CuZnSOD) protein was isolated from a cDNA library prepared from tabroot mRNAs of Codonopsis lanceolata. The eDNA, designated ClSODCc, is 799 nucleotides long and has an open reading frame of 459 bp with a deduced amino acid sequence of 152 residues. The deduced amino acid sequence of ClSODCc matched to the previously reported CuZnSODs. Consensus amino acid residues (His-45, -47, -62, -70, -79, -119 and Asp-82) were involved in Cu-, Cu/Zn-, and Zn- binding ligands. The deduced amino acid sequence of ClSODCc showed high homologies (82%-86%) regardless of species. Expression of ClSODCc by oxidative stress was increased up to 1 h after treatment and declined gradually. Much earlier and stronger expression of ClSODCc was observed in the cold stress treatment.

임대아파트의 수선 및 장기수선계획업무 프로세스 모델구축에 관한 기초연구

이춘경,정영한,김지현,이상준,박태근 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2

The final goal of this study is to propose the process models of repair and long-term maintenance plan for consistency and effectiveness in rental apartments. This models are expected to help managers improve their works and provide a operation guide in repair and long-term maintenance plan. This study developed an AS-IS process model for repair and long-term maintenance plan in rental apartments. To sum up, it would be possible for managers to use the work processes of repair and long-term maintenance plan for their systematic and effective works. Also, it should be possible to make the integrated maintenance management system for managing current situation and measuring the diagnosis.