Modulation of Gene Expressions and Enzyme Activities of Methionine Sulfoxide Reductases by Cold, Aba or High Salt Treatments in Arabidopsis

Oh, Jee-Eun,Hong, Suk-Whan,Lee, Yunsook,Koh, Eun-Ji,Kim, Kideok,Seo, Youngwon,Chung, Namhyun,Jeong, Moonsoo,Chang,Chang, Cheolseong,Lee, Byoungcheon,Kim, Kyoung Heon,Lee, Kwangwon,Lee, Hojoung 생명자원연구 2005 생명자원연구 Vol.13 No.-

2 ㎓ 선형 위상 천이 특성을 갖는 소형 아날로그 위상천이기

오현석(Hyun-Seok Oh),최재홍(Jae-Hong Choi),정해창(Hae-Chang Jeong),허윤성(Yun-Seong Heo),염경환(Kyung-Whan Yeom) 한국전자파학회 2011 한국전자파학회논문지 Vol.22 No.1

본 논문에서는 2 ㎓ 선형 위상 천이 특성을 갖는 위상천이기를 설계 및 제작하여 보였다. 소형의 위상 천이기 구현을 위해 집중소자로 구성된 전통과 회로망(all pass network)을 기반으로 위상천이기를 구성하고, 박막 세라믹 공정을 이용하여 제작하였다. 또한, 선형의 위상 천이 특성을 얻기 위해 버랙터(varactor) 다이오드에 직렬 커패시터를 연결하여, 전압에 대한 커패시턴스를 선형화함으로써 비선형성을 개선하였다. 전통과 회로망에 나타나는 인덕터는 스파이럴 인덕터로 구현하고, 이를 다이오드 바이어스 회로에 활용하여 4 ㎜×4 ㎜ 면적을 가지는 소형 위상천이기를 구성할 수 있었다. 또한, 온-웨이퍼(on wafer)로 측정을 위해 입출력은 CPW(Coplanar Waveguide) 형상으로 구현하였으며, 제작된 위상천이기는 버랙터 조정 전압 0~5 V에 대하여, 2 ㎓에서 삽입 손실은 약 4.2~4.7 ㏈, 위상 변화량은 약 79°였으며, 예상한대로 선형 위상 천이 특성을 보였다. In this paper, we present a 2 ㎓ compact analog phase shifter with linear phase-tune characteristic. The compact phase shifter was designed base on a lumped all pass network and implemented using a ceramic substrate fabricated with thin-film technique. For a linear phase-tune characteristic, a capacitance of the varactor diode for a tuning voltage was linearized by connecting series capacitor and subsequently produced an almost linear capacitance change. The inductor and bias circuit in the all pass network was implemented using a spiral inductors for small size, which results in the size reduction to 4 ㎜×4 ㎜. In order to measure the phase shifter using the probe station, two CPW pads are included at the input and output. The fabricated phase shifter showed an insertion loss of about 4.2~4.7 ㏈ at 2 ㎓ band and a total 79° phase change for DC control voltage from 0 to 5 V, and showed linear phase-tune characteristic as expected in the design.

修正單體法을 위한 方法論 檢討와 提案

吳昌桓 全南大學校企業經營硏究所 1976 産業經濟硏究 Vol.3 No.1

The revised(modified) simplex method is contrived to reduce the number of computations and not to disperse the errors. The methods contrived by Dantizing-Hadley and Charnes-Gass are, on the whole, agreed in case of introducing the slack-variables, but are broadly divided into two types-that is, the Dantizing-Hadley type and the Charnes-Gass type- in building the format of equations and the intial simplex tableau in case of introducing only the artificial variables. This paper is to prove the justification of presenting the new methodology of the revised simplex method by the unification of the above two types. It is summarized in two points as follows: 1) Format of equations. ? 2) The initial revised simplex tableau: ?

Toxoplasma 감염 가토의 임파구 아세포화 반응에 대한 연구

오창진,이영하,나영언,신대환 충남대학교 의과대학 지역사회의학연구소 1991 충남의대잡지 Vol.18 No.2

This study was performed to observe the differences of lymphocyte blastogienic responses in rabbits infected with Fukaya and Me49 strain of Toxoplasma gondii. Rabbits were subcutaneously inoculated with mouse brain emulsion containing 50 cysts of each strain of Toxoplasma gondii. A total of 9 male rabbits was used. From the 1st week after inoculation, blastogenic responses of peripheral blood lymphocytes treated with concanavalin A (Con. A, 10.0㎍/ml), lipopolysaccharide(LPS, 25.0㎍/ml) and Toxoplasma lysate(20.0㎍/ml) respectively were examined by [methyl-^3H]-thymidine incorporation assay at l week interval for 8 weeks. The results obtained in this study were as follows: 1. The blastogenic responses of the Con. A-treated and Toxoplasma lysate-treated lymphocytes from rabbits infected with Fukaya and Me49 strain of Toxoplasma gondii respectively were significantly declined as compared with those of the contol rabbits(p<0.05). No significantly differences were revealed in the blastogenic responses of the experimental group each other. 2. The blastogenic responses of the LPS-treated lymphocytes from rabbits infected with Fukaya and Me49 strain of Toxoplasma gondii respectively were not significantly declined as compared with those of the contol mice. No significantly differences were revealed in the blastogenic responses of the experimental group each other. The results suggested that there were no significantly differences in the blastogenic responses to Con. A, LPS and Toxoplasma lysate of each strain of Toxoplasma gondii infected rabbits. But the experimental group was a significant depression in blastogenic responses to Con. A and Toxoplasma lysate as compared with those of control group.

골수구성 백혈병 환자에게 발생한 결핵성 림프절염

이창섭,송진수,최평균,조재현,방지환,박경화,박완범,김홍빈,김남중,윤성수,박선양,김병국,오명돈,최강원 대한감염학회 2006 감염과 화학요법 Vol.38 No.5

혈액질환 가운데 결핵 발생이 증가한다고 알려진 것은 호지킨 림프종을 포함한 림프증식성질환 그리고 모양세포성 백혈병 등이 있다. 또한 동종 골수이식을 받은 환자에서도 결핵은 증가한다고 알려져있다. Kaplan 등은 골수구성 백혈병 환자에서 결핵 발생이 증가한다고 보고하였다. 그러나 골수구성 백혈병 환자에서 결핵의 발생이 증가하는 이유에 대해서는 아직까지 정확하게 밝혀지지 않았다. 저자들이 2년 동안 후향적으로 조사한 180명의 성인 골수구성 백혈병 환자들 가운데 결핵이 발생한 환자는 4명이었고, 발생 부위는 모두 림프절이었다. 결핵은 골수구성 백혈병의 특정 아형에만 국한되어 발생하지 않았지만, 50%에서 FAB 분류에 의한 M4였다. 림프절이 종대된 골수구성 백혈병 환자에서 특히, 결핵의 유병율이 높은 나라에서는 결핵성 림프절염도 감별진단에 포함시켜야 한다. During the neutropenic phase, leukemia patients receiving chemotherapy are prone to bacterial and, fungal infections; occasionally mycobacterial, viral and protozoal organisms may also cause infections. Mycobacterium tuberculosis infection was reported very rarely in these patients. This report describes four patients with M. tuberculosis infection identified from 185 adult patients who were diagnosed myelogenous leukemia between January 2003, and December 2004. There was no patient with M. tuberculosis infection from 44 lymphoid leukemia and 11 acute biphenotypic leukemia patients. Sites of infection were all lymph nodes. Three among four patients were presented with lymphadenopathy at initial diagnosis of leukemia, and the other one presented with lymphadenopathy after induction chemotherapy. There was no patient presented with lymphadenopathy during the neutropenic phase. Tuberculous lymphadenitis was presented in a patient with three acute myelogenous leukemia (FAB class 2 M4, 1 M2) and a chronic myelogenous leukemia, accelerated phase. An acute myelogenous leukemia patient had a leukemic cell and tubercle bacilli in the same lymph node. Tuberculosis should also be included as a differential diagnosis in myelogenous leukemia patient with lymphadenopathy, especially in the countries in which the disease is endemic.

고교 장거리 선수의 신체적 및 생리적 특성에 관한 비교 고찰

최충식,오인환,오창석 龍仁大學校 體育科學硏究所 1995 體育科學硏究論叢 Vol.5 No.1

The purpose of this study was to analyze the contribution of anthro pometrical physiological characteristics underlying 5000 meter running performance in high school male distance runners. It has been pointed out that a number of anthropometrical nd physical attributes such as body size, body composition, running economy, pulmonary function, cardiovascular-respiratory function and running history as well as maximal oxygen consumption have relatively association with success in the long distance running performance. Based on the statistical analysis, significant difference (p<0.05) was found between high group runners and low group runners. Enclosed is a summary of the lab test result, field test result. 1. The significant factor determining competitive success in the 5000meter run for high school male long distance runners were their maximal oxygen consumption and the level of Lactate acid.(r=0.87, r=0.86) 2. The reslationship between height and weight 5,000 meter running performance was not significant for high group and low group(r=0.37, r=0.49) 3. There was no significant relationship between percent body fat and body comosition and 5,000meter performance for both.

全南의 小都邑 機能化 方案에 대한 연구

曺在六,吳昌桓 全南大學校企業經營硏究所 1977 産業經濟硏究 Vol.4 No.1

1. Objective This study is to provide the goverment with guidlines for formulationg town revitalization plans which is regarded in gerneral as crucially important in undertaking rural community development. It is generally recognized that town development has long been neglected in the course of national development efforts, and accordingly almost all counties with some exemptions have been lagging far from the expected role of integrating activities of the villages in the county and those of cities as a catalyzer. 2. Methodology The whole process of this study consists of several steps. The first is collection of secondary infromation regarding the existing conditions of the target areas(22 counties) in terms of demographic aspect, economic aspect, and social welfare aspect. The data and relevant information thus collected are arranged in such a manner as to identify the characteristics of the three indicators of comprehensive nature such as demographic indicator, economic indicator, and social welfare indicator. These three indicators consist of sub-indicators covering most quantifiable realities of the counties. Crucial issues to be studied hav been identified through brain storming discussions between the team members based on the information and observations. Six counties have been selected as target areas to be developed by goverment's investment beignning 1978. In-depth discussions between study team members and key persons at the level have been carried out to reach final agrement on the key issues and their solutions. 3. Results of the Research The major function of townships in Chonnam Province is the functions as a center of county administration with exception to three townships functioning as the trade center which began to decline late in 1960's. With the expension and pavement of the two-lane highways connecting major towns and cities, the functions as trade center have been highly subject to deterioation toward major cities. The farther the distance between township and major city is, the more independence the township sustains in the course of development. Therefore the development of a township largely depend upon the distance to the major city. Another important factor effecting the growth of townships is the industrial resoures endowed by the township. One more important function to be strenghtend is to provide counter-magnetic force of out-migration toward prime cities. But it seems that the function expected by the government could be hardly provide, since some large-scale regional development plans are under way; heavy petro-chemical industrial complex at Gwangyang Bay, sea-dike construction at the estuary of the Yongsan river which is expected to stock suffecient amount of portable and industrial water, and large and small sacle development undertakings in four major cities in the province. The development targets for the sample townships selected are set aside so as to attain the provincial averges in those three indicators. Some institutional modifications are recommanded to make the development efforts more effective. They are; a) Introduction of the popular participation in the urban planning process b) Reconsideration of the existing zoning system c) Introduction of development tax system for township d) Establishment of budget component for training statistcians at the micro-area level(local lvel) e) Establishment of more close link between the township and surrounding areas by realigning and upgrading the transportation network

다발성 골수종으로 이행한 단일형질세포종 1예

정재용,모성환,기장도,문철호,김창욱,전용준,박유환,정춘해,오윤경 조선의대 1995 The Medical Journal of Chosun University Vol.20 No.2

수부의 외상성 중수지 관절 탈구의 치료

이승구,송석환,이주엽,문창윤,오재찬 대한골절학회 2003 대한골절학회지 Vol.16 No.2

목적 : 수부의 중수지 관절 탈구의 관혈적 정복이 필요했던 예에서는 정복을 방해하는 구조물에 대해 분석하고 도수 정복이 가능했던 예에서는 성별 및 탈구 형태에 따른 특성에 대해 알아보고자 하였다. 대상 및 방법 : 총 27예의 수부 중수지 관절 탁구 환자 (무지 11예, 이지 14예, 소지 2예)를 대상으로 연구하였다. 탈구된 중수지 관절의 정복을 방해하는 해부학적 구조는 수술시에 확인을 하였으며, 도수 정복이 가능하였던 예들에서도 연령과 손상된 구조물, 그리고 최종적인 임상 결과를 평균 7개월간 추시 관찰하였다. 결과 : 무지 중수지 관절의 탈구 11예 중 파열된 전방 관절낭, 수장판과 단무지 굴건의 파열을 동반한 복합 탈구가 8예 있어 관혈 정복을 시행하였으며, 2예에서만 도수 정복이 가능하였다. 관절염이 있던 1예는 관절 유합술을 시행하였다. 다른 수지의 중수지 관절의 탈구는 Kaplan의 개념에 따라 탈구를 수술 정복하였고 파열된 수장판을 복원하였으며, 1예에서 수술시 표재 중수 횡인대만의 절개와 이완으로 정복할 수 있었다. 소지 중수지 관절 탈구의 2예에서 파열된 요측 측부인대가 수술시 관찰되었고 이를 복원하여 수지의 불안정성을 예방하였다. 이들의 최종 결과는 특별한 운동 제한이나 불안정성 없이 좋은 결과를 보였다. 결론 : 적절한 국소 마취하에 도수 정복을 1~2회 시행할 수 있지만 단순 정복이 가능한 탈구가 부적절한 견인으로 정복이 불가능한 복합 탈구로 진행할 수 있다. 그리고 복합 탈구는 대부분 관혈적 정복이 필요하기 때문에, 정복 방해 구조물에 대한 충분한 이해와 적절한 조치가 필요하다. Purpose : To analyse the obstacles to prevent the reduction for dislocation of the metacarpophalangeal (MP) joints of the hand and evaluate the relationship between the sex and dislocation type in closed reduction case. Materials and Methods : Total 27 cases of MP joint dislocation of the hand (11 cases of thumb, and 14 index and 2 little finger) were reviewed retrospectively. The anatomical structures to prevent the reduction were confirmed at operation and the cases which were reduced immediately were also analysed for their ages and differences of damaged structures, and finally their complications or outcome were reviewed for average 7 months after reduction. Results : In 11 cases of thumb MP joint dislocations, the complex dorsal dislocations in which the protruded metacarpal neck was caught by buttonhole of torn anterior joint capsule, volar plate and FPB were reduced by open method in 8 cases, and closed reduction was done in 2 cases but one old case required arthrodesis. In other finger MP joint dislocations, the Kaplan's concept to prevent the reduction was confirmed. But reduction of torn volar plate and incision of transverse metacarpal ligament were sufficient to reduce the dislocation with gentle longitudinal traction during the operation. In two cases of little finger MP joint dislocation, the ruptured radial collateral ligaments were noted after open reduction and it must the repaired to prevent the finger instability later. Their overall end results were good without any significant restriction of MP joints motions and finger instabilities. Conclusion : One or two times of closed reduction with proper local anesthesia could be tried, but simple reducible dislocation can be converted to complex irreducible ones by the inappropriate traction method, and so proper reduction technique by closed or even in open way is important with the knowledge of anatomical obstacles to prevent the reduction of the metacarpophalangeal joints.

위장질환에 따른 H.pylori 감염빈도와 검사방법의 비교분석

김대현,조재현,금민수,최성곤,이창형,탁원형,권영오,김성국,최용환,정준모 慶北大學校 醫科大學 1997 慶北醫大誌 Vol.38 No.2

목적 : H. pylori가 위장관 질환의 병인에 깊은 관련이 있어 이의 적절한 진단 및 치료가 중요하게 대두되고 있다. 이에 저자들은 소화기 증상을 주소로 내원한 환자들을 대상으로 내시경 검사를 실시하여 H. pylori검출을 위한 CLO검사, IgG 항체검사 및 H&E 염색 등을 시행하여 각 질환별로 H. pylori 감염의 양성율을 알아보고 검사법에 따른 민감도 및 특이도를 그 유용성에 대하여 조사하였다. 대상 및 방법 : 1996 4월에서 8월까지 경북대학교병원에 소화기증상을 주소로 내원한 총 313명의 환자를 대상으로 내시경 검사를 실시하여 H. pylori 검출을 위한 CLO 검사, IgG 항체검사, 조직염색 검사를 실시하였다. 결과 : 전체 대상 환자수는 313명이었고 연령별 분포는 16세부터 80세 까지 다양하였으며 그중40대, 50대, 60대가 각각 69예(22%), 73예(23.3%), 65예(20.8%)로 전체 환자중 66%를 차지하였다. 남녀비는 2.07 대 1로 남자가 많았다. 대상환자의 평균나이는 52±15세였고, 전체 대상환자에서 H. pylori 양성군과 음성군의 평균나이는 각각 50±15세, 54±15세 였고, 궤양환자군에서 H. pylori 양성군과 음성군사이의 평균나이는 각각 49±14.8세, 55±13.8세로 나타났다. 각 질환별분포는 위염이 72명(23%), 십이지장 궤양이 85명(27.2%), 위궤양이 80명(25.6%), 위암이 20명(6.4%), 비궤양성 소화불량이 13명(4.2%), 기타가 43명(13.7%)이었으며, H. pylori 감염 양성율은 위염이 71%, 십이지장 궤양이 86.8%, 위궤양이 58.3%, 위암이 75%, 비궤양성 소화불량이 75%였으며 특히 유문륜 궤양에서는 100%의 양성율을 보였다. 소화성 궤양군과 비궤양군에서의 H. pylori 양성율을 비교해 본 결과 궤양군에서는 73.1%, 비궤양군에서는 72%로 통계학적으로 차이는 없었다(P=0.91). 소화성 궤양환자에서 출혈이 동반된 군과 동반되지 않은 군에서의 H. pylori 양성율을 비교해 본 결과 출혈이 동반된 군에서의 양성율은 54.5%였고, 출혈이 동반되지 않은 군에서는 77.5%의 양성율을 보여 출혈이동반되지 않은 군에서 통계학적으로 유의하게 높았다(P=0.014). 나이에 따른 양성율을 알아본 결과 50세 이하에서는 78.5%였고, 50세 이상에서는 67.5%로서 양성율이 낮았으나 통계학적으로 유의성은 없었다(P=0.052). 각 검사법에 따른 민감도 및 특이도는 전체 환자중에서는 CLO검사가 88.9%, 96.1%, IgG항체검사 90.8%, 58.5%, H&E 염색검사 86.9%, 79.2%로서 민감도는 비슷하게 나왔으나 CLO검사는 상대적으로 특이도가 다른 검사법에 비해 높았다. 궤양군에서의 CLO검사의 민감도와 특이도는 92.0%, 95.6%였고, 비궤양군에서의 민감도와 특이도는 84.3%, 96.8%로서 비궤양군에서는 CLO검사의 민감도는 약간 낮았다. 나이에 따른 CLO 검사의 민감도 및 특이도는 50세 이하에서는 91.5%, 93.1% 였고, 50세 이상에서는 86.3%, 97.9%로서 50세 이상에서는 상대적으로 CLO검사의 민감도가 낮았다. 결론 : 본 연구에서는 위장질환에 따른 H. pylori 양성율을 알아보았는데, 다른 보고에서 처럼 높게 나왔으며, 진단 방법으로 사용한 CLO검사, IgG항체 검사, 조직염색검사 등은 모두 비교적 높은 예민도를 나타냈고, 그중 CLO검사가 간편하고 경제적이라는 면에서 임상적으로 유용한 검사로 여겨지나 상대적으로 CLO검사의 민감도가 낮은 비궤양성 질환과 50세 이상의 환자군에서는 CLO검사 외에 다른 검사방법을 병행함으로써 H. pylori의 진단율을 높일 수 있을 것으로 사료된다. Background: Gastric colonization by Helicobacter. pylori is common among patients with peptic ulcer and gastritis. And various diagnostic tests are available in confirming H. pylori infection. The aim of this paper is to estimate the prevalence of H. pylori infection in Gastroduodenal disorders and compare the sensitivity and specificity of the most widely available tests. Methods: A total of 313 patients were tested for H. pylori infection by IgG Ab, CLO test and H&E stains. Results: The prevalence of H. pylori infection was significantly higher in duodenal ulcer(86.8%) than in gastric cancer(75%), gastritis(71%) and gastric ulcer(58.3%)(P=0.009). The sensitivity and specificity of each test was as follows: CLO test(88.9%, 96.1%), IgG Ab test(90.8%, 58.5%), H&E stain(86.9%, 79.2%). Sensitivity of CLO test in peptic group was 92.0%, whereas in non-peptic group, it was 86.3%. Sensitivity of CLO test in age under 50 was 91.5%, that over 50 it was 86.3%. Conculsions: There is a strong association between H. pylori and gastrointestinal disorders. CLO tests have relatively high sensitivity and specificity, especially in peptic group and younger age(below 50 yr)group. But in those patients in which CLO tests are less sensitive (age>50 or non-peptic group), more than one test may be necessary to diagnose the presence of the organism.