Virus 에 감염된 대추나무의 이병엽과 (罹炳葉) 건전엽에 (健全葉) 있어서의 유리 (遊離) amino 산의 정성적 비교

홍순우(Soon Woo Hong),하영칠(Yung Chil Hah) 한국식물학회 1961 Journal of Plant Biology Vol.4 No.1

Hong, Soon-Wooe and Yung-Chil, Hah (Dept. of Botany, Seoul National University, Seoul, Kerea.) A compantive investigation of free amino acids in healthy and virus diseased Chinese date tree. Kor. Jour. Bot. 4 (1)9~12 1961 : A comparative investigation of free amino acids content in healthy check and virus diseased leaves of Chinese date tree, Zizyphus jujuqa Mill var. inermis Rhed, was carried out by authors throughout the growing season of 1959 and 1960 from June to October. The methods of qualitative analysis of free amino acids applied in this experiment is followed by Moore and Stein.^(1.2). free amino acids determined in this experiment are shown in Fig. 1 and Table 1. As the figure and the table are shown, three more amino acids such as glutarmine, asparagine and histidine are detected in the diseased material. The additiolal amino acids which are known as diamines in diseased leaves are conspicuous. It is presumed that the diamine might be increased by the self-reproduoion of the virus in cooporation with certain enzymes which are carrying out the protein metabolism in the host protoplast in contrast with the healthy checks which is carrying out normal protein metabolism,^(3.4.5). From the histological point of view, the facts of phloem degeneration or necrosis in diseased leaves, it seems to interrupt to move free amino acids from roots to leaves and it possibly takes place an excessive productitn of NH_3 which is diaminated by the metabolism of nitrogen compounds in such conditioned leaves.^(6.8) Therefore, it is also presumed that additional diamino acids are accumulated in diseased leaves. There are no change of amino acids in both materials of this plant throughout the growing season qualitatively, and this result agrees with the paper of Knight.^9

Factor analysis of Water Quality and Ecosystem in Jinhae Bay

홍순우,하영칠,안태석 江原大學校 附設 環境硏究所 1989 環境硏究 Vol.6 No.-

진해만의 6개 정점의 표·지층에서 1976년 7월부터 1982년 12월까지 물리화학적, 생물학적인 환경요소를 65회에 걸쳐 조사하였다. 이들 자료를 통계학적인 분석을 통하여 진해만의 수질및 생태계에 영향을 미치는 요인을 분석하였다. 그 결과 행암만 내부에 위치한 정점 6 을 제외한 전 해역에서 식물성 플랑크톤의 이상증식이 주요한 요인으로 생태계의 44∼56%의 변화를 설명할 수 있었으며, 정점 6 에서는 영양염류가 중요한 요인이 됨을 알았다. 두번째 요인으로는 담수의 유입으로 볼 수 있었으며, 이 요인은 외해로 나갈수록 그 영향이 적어져, 정점 4 에서는 의미가 없었다. 질소의 유입도 각 정점에서 주요한 요인이었으며, 그 외에 유기물의 증가, 도시하수의 유입, 영양염류의 침전 및 미생물에 의한 염류의 재순환과 광합성이 진해만에서의 수질과 생태계를 지배하는 주요 요인으로 확인되었다. In Jinhae bay, the physicochemical, biological and ecological surveys were carried out 65times at six sites both insurface and bottom water from July 1976 to December 1982. Twenty one abiotic andbiotic parameters were determined on each sample. These data were subjected to factor analysis to scrutinize the effects of environmental conditions on water quality and ecosystem. The phytoplankto blooming was the major factor of the variance of the water quality and ecosystem in Jinhae bay. Fresh water inflow was second factor at site 1 and 6, and it was third factor in site 3 and 5. The nitrogen inflow was also play an improtant role, which was second factor at site 2, 3, 4 and 5, and third factor at site 1. Beside above factors, the increasing of organic materials, waste water in flow, precipitation and recycling of nutrients, upwelling of sediment, nutrient, salts and photosynthesis were also determined for the variation of water quality and ecosystem.

The role of microbes in eutrophication

Yung-Chil Hah,Tae-Seok Ahn,Tae-Young Ahn,Ki-Seong Joh 江原大學校 附設 環境硏究所 1992 環境硏究 Vol.9 No.-

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Plenary Lectures ( 1998 . 11 . 12 - 17 ) : Strategy for Screening Novel Microorganisms

(Yung Chil Hah) 한국응용약물학회 1998 학술대회 Vol.1998 No.1

Isolation and Characterization of Bacterial Pathogens from Eels (Anguilla japonica) Cultured in Korea

Hah, Yung-Chil,Hong, Soon-Woo,Oh, Hee-Bok,Fryer, John L.,Rohovec, John S. The Microbiological Society of Korea 1984 미생물학회지 Vol.22 No.1

아산 양어장에서 양식되고 있는 뱀장어 (Anguilla japonica)로부터 22주의 병원성 세균을 분리하여 그 생화학적 성질, 혈청학적 관계, 금붕어에 대한 감염성 및 여러 항생물질에 대한 감수성을 시험하였다. 22균주중 14주 (64%)는 Edwardsiella tarda 5주 (23%)는 Aeromonas hydrophila, 기타 3균주(14%)는 Vibrio anguillarum으로 동정되었다. 3가지 분리균중에서 E. tarda는 동일한 혈청형으로 그 분리율 및 금붕어에 대한 감염성이 가장 높았다. 이에 따라 E. tarda가 조사된 양어장의 뱀장어에서 발생하는 세균성 질병의 주 병원체로 판명되었다. 세 분리균주의 균액을 수조에 풀어 금붕어에 접촉시켰을 때 그 감염율은 세 균주 모두 상대적으로 낮았다. 10주의 분리균을 택해 12가지 항생물질에 대해 감수성 검사를 한 결과 하나에서 여섯가지 약제에 대해 저항성을 나타냈으며, 그 중 tetracycline 유도체와 sulfisoxazole에 대한 저항성이 현저하였다. Twenty two cultures of pathogenic bacteria were isolated from cultured eels(Anguilla japonica) from Asan Hatchery. The bateria were characterized by their biochemical properties, serological relationships, infectivity to gold fish and susceptibility to various antimicrobial compounds. Fourteen of 22(64%) cultures were identified as Edwardsiella tarda, five (23%) as Aeromonas hydrophila and three (14%) as Vibro anguillarum. Edwardisiella tardo isolates proved to be the main cause of the disease in cultured eels. They were serologically homogeneous and their virulency to gold fish was higher than any of the other groups of bacteria tested. The virulence of 3 isolates were low in gold fish exposed to the bacteria by the waterborn route. Ten strains were tested for their susceptibility to 12 antimicrobial compounds and were resistant to from one to six drugs: in particular, tetracycline derivatives and sulfisoxazole.

사고력 수업을 위한 프로그램의 개발과 교사연수

김영채(Yung Che KIM),윤정륜(Jeong-Lyoon YOON),양용칠(Yong-chil YANG),박권생(Kwonsaeng PARK),문창현(Chang-hyun MOON) 대한사고개발학회 1996 The International Journal of Creativity & Problem Vol.6 No.1

This project, originally initiated and supported by the Board of Education of Daegu City, had twofold purposes: One was to develop a theoretical model of integrative teaching of subject contents and thinking skills and, based on it, to develop its training program together with training materials. And the other was to perform teacher training using the model and program developed. It was approached somewhat experimentally and innovatively to reform the traditional teaching practices. This integrative teaching model established assumptions such as thinking skill(s) is a skill or a set of skills (so it can be taught and learnt), thinking skills as well as subject content can be hierarchically organized, thinking skills and strategies should be taught explicitly and systematically, subject content is a mode of thinking, and subject contents should be taught through and, also, by thinking processes. The program developed included the contents such as the followings: (1) Thinking skil ls and strategies (organization of thinking skills, reasoning and form of knowledge, relation of subject content and thinking processes), (2) critical thinking, (3) comprehension of contents and writing (strategies of comprehension of contents, principles and guide of writing), (4) Socratic conversation, questioning and lessons for idea generation techniques ) and (5) , finally, teaching model and instructional development. 61 teachers from the primary and secondary schools volunteered to the teacher traning sessions which lasted for 60 hours. Training sessions followed three steps. The first step was for providing theoretical background and mastery of basic skills, the second step was for having teaching practicum applying the theory to practice and coaching, and the final third step was for reporting and interacting with respective colleague teachers and principals. The result obtained from the analysis of surveys administered immediately after the first step and, also, after completing the whole training sessions and, further, observations of supervsiors and principals of the Board of Education and the others concerned showed the project had been very successful.

가축분뇨처리 퇴비로서 석탄회의 이용가치 개발과적정 혼합비율 결정에 관한 연구

고영두,김두환,김재황,이수칠,유성오,강경록 경상대학교 축산진흥연구소 1999 畜産振興硏究所報 Vol.26 No.1

악성 흉막액에 대한 흉막강내 OK - 432 주입의 치료 효과

방영주(Yung Jue Bang),서철원(Chol Won Seo),이재훈(Jae Hoon Lee),신동복(Dong Bok Shin),강윤구(Yoon Koo Kang),박근칠(Keun Chil Park),김노경(Noe Kyeong Kim) 대한내과학회 1989 대한내과학회지 Vol.36 No.4

N/A OK-432 has been shown to have antitumor activity in cancer patients, and intrapleural injection of OK-432 had also been shown to cause reduction or disappearance of pleural effusions and/or tumor cells in pleural effusions of cancer patients. Forty patients with malignant pleural effusions were treated with intrapleural administration of OK-432. Their age ranged from 20 to 80 years with a median of 56 years, and the male to female ratio was 24:16. Primary tumor sites were lung in 30 patients, stomach in 3, colon in 1, ovary in 1, and 5 patients had adenocarcinoma of unknown primary site. Cytologic examinations of pleural fluid were positive in 30 patients, and 10 patients without cytologic proof had exudative effusions with elevated levels of carcinoembryonic antigen. Their performance status was ECOG grade 1 in 9, 2 in 18, and 3 in 13 patients. One to three courses of intrapleural injection of OK-432 were tried weekly (mean 1.3 courses) without any concomitant anticancer treatment. The responses were categorized as objective response or failure. Seven patients were not evaluable for response because of early death without pleural effusion in two, protocol violation in one, and lost to follow-up in four. Twenty-four patients (72.7%) achieved objective responses among 33 evaluable patients. Response duration ranged from 4+ to 59 weeks with a median of 52 weeks. Common toxicities included fever and chill (38/52 courses), and pleuritic chest pain (24/52), but those symptoms were tolerable. These results show that intrapleural administration of OK-432 appears to be effective in the control of malignant pleural effusions with acceptable toxicity.

DIAGNOSTIC VALUE OF LIVER FUNCTION TESTS , HEPATOMEGALY , AND LIVER SCAN IN THE PREDICTION OF LIVER METASTASIS IN STOMACH CANCER PATIENTS

Bang, Yung Jue,Lee, Sang Jae,Koh, Chang Soon,Heo, Dae Seog,Kim, Chung Yong,Park, Keun Chil,Kim, Noe Kyeong 대한핵의학회 1984 핵의학 분자영상 Vol.18 No.1

진해만의 수질과 생태계에 관한 요인분석에 관하여

하영칠,홍순우,안태석 한국물환경학회 1985 한국물환경학회지 Vol.1 No.1

진해만의 6개 정점의 표·저층에서 1976년 7월부터 1982년 12월까지 물리화학적 생물학적인 환경요소를 65회에 걸쳐 조사하였다. 이들 자료를 통계학적인 분석을 통하여 진해만의 수질 및 생태계에 영향을 미치는 요인을 분석 하였다. 그 결과 행암만 내부에 위치한 정점6을 제외한 전 해역에서 식물성 플랑크톤의 이상증식이 주요한 요인으로 생태계의 44∼56%의 변화를 설명할 수 있었으며, 정점6에서는 영양염류가 중요한 요인이 됨을 알았다. 두번째 요인으로는 담수의 유입으로 볼 수 있었으며. 이 요인은 외해로 나갈수록 그 영향이 적어져, 정점4에서는 의미가 없었다. 질소의 유입도 각 정점에서 주요한 요인이었으며, 그 외에 유기물의 증가 도시하수의 유입, 영향염류의 침전및 미생물에 의한 염류의 재순환과 광합성이 진해만에서의 수질과 생태계를 지배하는 주요 요인으로 확인되었다. In Jinhae bay, the physicochemical, biological and ecological surveys were carried out 65 times at six sites both in surface and bottom water from July 1976 to December 1982. Twenty one abiotic and biotic parameters were determined on each sample. These data were subjected to factor analysis to scrutinize the effects of environmental conditions on water quality and ecosystem. The phytoplankton blooming was the major factor of the variance of the water quality and ecosystem in Jinhae bay. Fresh water inflow was second factor at site 1 and 6, and it was third factor in site 3 and 5. The nitrogen inflow was also play an important role, which was second factor at site 2, 3, 4 and 5, and third factor at site 1. Beside above factors, the increasing of organic materials, waste water inflow, precipitation and recycling of nutrients, upwelling of sediment, nutrient salts and photosynthesis were also determined for the variation of water quality and ecosystem.