돼지설사 원인균 E. coli의 생육저해에 대한 유산균의 효과

姜國熙,成文喜,方泰瑛,龍球淵,林讚洙 成均館大學校 科學技術硏究所 1985 論文集 Vol.36 No.1

E. coli A_2 diarrhea causing bacteria of pigs was anaerobically inoculated with 10^5/ml into prereduced YS medium (10% reconstituted skim milk+0.1% yeast extract), and then lactic acid bacteria were inoculated with 10^5/ml and 10^7ml into previous inoculated samples of E. coli A_2. Inoculated samples cultured at 37℃, were tested to determine changes in viable numbers of organisms and pH. The experimental results are summerized as follows: 1. In the mixed culture medium of 10^5/ml E. coli A_2 and L. casei YIT9018, E. coli A_2 decreased after 36 hours from incubation. 2. In the mixed culture medium of 10^5/ml E. coli A_2 and L. acidophilus, E. coli A_2 drastically decreased after 24 hours from incubation and was almost disappeared after 72 hours from incubation. 3. In the mixed culture medium of 10^5/ml E. coli A_2 and L. bulgaricus, E. coif A_2 drastically decreased after 24 hours from incubation and was almost disappeared after 72 hours from incubation. 4. In the mixed culture medium of 10^5/ml E. coli A_2 and Str. thermophilus, E. coli A_2 decreased after 12 hours from incubation. 5. When the pH value of the mixed culture, was, 4. 5 below, E. coli A_2 decreased.

한국의 소집단 활동 진흥 방안에 관한 실증적 연구

구일섭,김태성,이강인 남서울대학교 2005 남서울대학교 논문집 Vol.11 No.2

The purpose of this research is to suggest the policy making for the effective promotion of Quality Small-Group activity. Since 1975, variety of organizations in Korea have widely the implemented Quality Small-Group activities for their management systems. Today, Companies are facing the harsh realities of a competitive environment. This is no time for revolutionary change. Instead, Companies are instituting revolutionary change meant to have impact within a very short time frame. Bold steps are required to lead the industry into a future of improved efficiency and significant productivity gains. The Worker's Quality Small-Group activity is, essentially, a trouble shooting oriented voluntary small group within their working place to improve the surroundings creatively. The industries have enthusiastically used Quality Small-Group activities and were influenced from them. The Quality Small-Group activities can be regarded as a kind of Knowledge Management where new knowledge is created and knowledge is shared in the economy. However, the academics were less interested in this subject, as a result, there were no systematic guidances for Quality Circle activities. Also, the government was less interested in these activities, as a result, there were no systematic policy making for Quality Small-Group activities. Thus, in this research, the effective policy making for Quality Small-Group activities were suggested which were based on the results of survey Questionnaires. As a results of this research, to maximize the effect of TQM in the nationwide, Quality Small-Group activity as a bottom-up management should be more expanded and revitalized.

한국성인 정상교합자와 부정교합자의 연조직 측모에 관한 두부방사선 계측학적 비교연구

강홍구,윤태호,황성,정호균 중앙대부설한국의과학연구소 1991 한국의과학 Vol.23 No.4

규칙적인 신체활동이 청소년의 생활 스트레스에 미치는 영향

길태오,구광수,이강헌 창원대학교 체육과학연구소 2004 경남 체육연구 Vol.9 No.1

본 연구는 규칙적인 신체활동이 청소년의 생활 스트레스에 미치는 영향을 규명하여, 청소년의 생활 스트레스 관리에 규칙적인 신체활동의 긍정적인 효과를 인식시키려는 목적으로 실시하였다. 연구대상은 유층집락 무선표집방법(stratified cluster random sampling method)을 이용하여 운동참여 집단(중학생 120명, 고등학생 93명) 213명과 비참여 집단(중학생 139명, 고등학생 95명) 234명, 총 447명을 표집하였다. 청소년의 생활 스트레스를 측정하기 위한 검사지로는 최해림(1986)의 생활 스트레스 척도를 이용하였고, 생활 스트레스의 영역은 학교생활, 가정생활, 대인관계의 3가지 영역으로 구분하였다. 수집된 자료는 신체활동 참여여부와 학교급별로 평균과 표준편차를 산출한 후 도표화하고, 평균차 검증을 위하여 이원변량분석과 상호작용효과 검증을 실시하여 분석해 본 결과 다음과 같은 결론을 얻었다. 첫째, 규칙적으로 신체활동에 참여하는 학생들은 신체활동을 실시하지 않는 학생들보다 생활 스트레스의 전 영역(학교생활, 가정생활, 대인관계 스트레스)에서 더 긍정적인 반응을 나타내었다. 둘째, 규칙적으로 신체활동에 참여하지 않는 학생들의 경우 가정생활 스트레스는 중학생이 고등학생보다 더 높은 수준이었고, 반면에 대인관계 스트레스는 고등학생이 중학생보다 더 높은 수준이었다.

디지탈 影像處理를 爲한 畵像表示 시스템에 關한 硏究

박규태,박명구,신태민,강현철 연세대학교 산업기술연구소 1983 논문집 Vol.15 No.2

A digital image display system is studied. A TV set is used for a display unit. The system is designed to display 256x212 pixels in a frame and 8 bit gray levels. A microcomputer system is utilized for the image processing which has a Z-80A cpu and s-100 bus. A image processing system which includes a refresh memory system is designed. Images taken by the input system are processed. The image sharpening techniques are introduced. The image edges are found and sharpend using Robert cross operator of spatial differentiation technique. The images are also processed to eliminate noise utilizing the neighbourhood averaging method.

慶北地域에서 栽培中인 芍藥의 Paeoniflorin 含量分析

이인구,주길재,김태강,정재동 慶北大學校農業科學技術硏究所 1996 慶北大農學誌 Vol.14 No.-

主재배품종인 의성종과 영천종의 유효성분을 HPLC 및 TLC로 분석한 결과 主성분인 paeoniflorin 함량은 의성종이 영천종보다 높으며 albiflorin과 oxypaeoniflorin의 함량을 두 재배종에서 비교하면 의성종은 albiflorin 함량이 많고 영천종은 oxypaeoniflorin의 함량이 많았다. 생산지에 따른 paeoniflorin의 함량차이는 2.15%에서 4.08%의 범위였고 의성과 거창의 것은 비슷하였으며 영천의 것이 가장 낮았다. 18종의 재배종들은 품종에 따라 다양한 paeoniflorin 함량 차이를 보이며 작약성분분석의 HPLC 크로마토그람을 albiflorin, oxypaeoniflorin 및 paeoniflorin피크를 기준으로 비교해본 결과 크게 3가지 패턴으로 분류할 수 있었다. 이 세가지 유형은 의성종 패턴 9종, 영천종 패턴 4종 풍기표준 종패턴 5종 이었다. 수확시기에 따른 작약의 paeoniflorin의 함량변화를 조사한 결과 3월과 9월에 수확한 것이 낮았으며 5월과 11월에 수확한 작약의 paeoniflorin 함량이 높았다. The effective components of the peony cultivar, Euseongjagyag and Youngcheonjagyag, which were the major cultivars of peony in Kyeongbuk area, were determined with HPLC and TLC. The paeoniflorin content in the root of Euseongjagyag were more than that of Youngcheonjagyag. The root of Euseongjagyag contained much albiflorin and Youngcheonjagyag contained much oxypaeoniflorin in comparision with albiflorin and oxypaeoniflorin contents in both cultivars of peony. Paeoniflorin contents in accordance with peony prodution regions were ranged from 2.15% to 4.0%, and paeoniflorin content of local cultivar of Euseong and that of Geochang were approximatly the same but that of Youngcheon was the lowest. Paeoniflorin content in the 18 accessions of peony cultivar which were collected from Kyeongbuk area and harvested on November 1993, were ranged from 1.41% to 5.30%. The 18 accessions of peony were classified with the HPLC chromatogram pattern of peony root extract into the three groups which composed with Euseong peony group(9 accessions), Youngcheon peony group (4 accessions) and Punggi standard peony group(5 accessions). High content of paeoniflorin was contained in peony root harvested in May and November, but low content of paeoniflorin was contained in peony root harvested in March and September.

난지도 매립지에서 침출수 거동에 관한 연구

조원철,강동희,구태훈 중앙대학교 기술과학연구소 2000 기술과학연구소 논문집 Vol.30 No.-

최근 난지도 매립지는 침출수로 인한 지하수오염이 심각한 매립지 중 하나로 부각되고 있다. 본 연구는 난지도 매립지에서의 침출수 거동을 3차원 지하수 흐름을 모사 할 수 있는 MODFLOW(A Modular 3-D Finite Different Groundwater Flow Model)을 이용하여 분석하였고, 난지도 매립지에서의 침출수 발생량은 HELP(Hydraulic Evaluation of Landfill Performance)모델을 이용하여 추정하였다. 침출수 발생량은 최근 10년간의 기상 자료를 이용하여 산정 하였으며, 침출수 거동은 복토 전/후와 차수벽과 well 설치후의 시간 경과에 따른 침출수위의 변화를 계산하여 예측하였다. 본 연구는 난지도 매립지의 적절한 침출수 발생량과 침출수 거동을 예측하는데 있어 유용하게 사용될 것으로 사료된다. The Nanji landfill has recently became one of the most important site for groundwater contamination leachate transport. This study is to analyze the leachate transport in Nanji waste landfill using MODFLOW(A Modular 3-D Finite Different Groundwater Flow Model) model which can model three dimension groundwater flow. Leachate production rates are estimated by HELP(Hydraulic Evaluation of Landfill Performance) model and used weather records for recently 10 years. Leachate transport is predicted by a change of leachate level to after/before established HDPE, established slurry wall and wells. The purpose of this study is to predict appropriate leachate rates and leachate transport at Nanji waste landfill.

骨盤腔內 巨大 橫紋筋肉腫 1 例

金瑩洙,河泰原,朴滿洙,姜瞬求,李重禾,尹栗老,薛鍾求 충남대학교 의과대학 지역사회의학연구소 1992 충남의대잡지 Vol.19 No.2

Rhabdomyosarcoma, which is a very rare and highly malignant disease in urologic field, has three categories-pleomorphic, alveolar, embryonal, and may arise from any part of the body that contains embryonal mesenchyme, whether striated muscle tissue is present or not. The common site in the genitourinary tract are prostate, bladder, and vagina. Herein we experienced a rhabdomyosarcoma of the pelvic cavity and reviewed literature briefly.

한국어판 예일 틱 증상 평가척도 : 신뢰도 및 타당도 연구

정선주,이정섭,유태익,구영진,전성일,김봉석,홍강의 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.5

목 적 : 틱 증상의 심한 정도를 평가하기 위한 도구인 예일 틱 증상 평가척도(Yale Global Tic Severity Scale)를 한국판 가정 평가용 설문지 및 임상 평가용 척도로 개발하기 위하여 본 연구를 시행하였다. 방 법 : 예일 틱 증상 평가척도는 뚜렛 장애 및 기타 틱 장애에서 나타나는 운동틱과 음성틱 각각의 증상의 수, 빈도, 심한 정도, 복합성, 방해 정도 및 장해도를 포괄적으로 평가하도록 고안되어져 있다. 틱 증상을 주소로 정신과외래를 방문한 만 4.3세에서 19세까지의 100명의 환아 및 부모들을 대상으로 한국어로 번역한 예일 틱 증상 평가척도의 가정평가용 설문지를 평가전에 완료하도록 한 후, 면담을 통한 임상평가용 척도를 실시하였으며 수렴타당도 및 변별타당도의 검증을 위해 총괄적인 임상 인상척도-뚜렛 증후군, 강박장애, 주의력결립/과잉운동장애(Clinical Global Impression-TS, OCD, ADHD)를 시행하였다. 결 과 : 자료분석결과 내적일치도, 수렴타당도, 변별타당도 및 검사자간 신뢰도 모두 매우 높게 나타났으며 요인분석상 전 항목척도와 장해도는 운동틱과 음성틱에 해당하는 2개의 요인으로 묶여졌다. 결 론 : 본 연구결과 한국판 예일 틱 증상 평가척도의 높은 타당도 및 신뢰도가 입증되었으며 이는 향후 틱 증상의 객관적인 평가 및 정량화를 위해 유용하게 사용되어질 수 있을 것이다. Objectives : This study was carried out to develop the Korean form of Yale Global Tic Severity Scale(YGTSS)-family & clinical rating version. The severity of motor and phonic tics was rated according to five separate dimensions : number, frequency, intensity, complexity, and interference. Methods : The Korean form of YGTSS was applied to 100 children who visited psychiatric outpatient clinic with chief complaints of tic symptom. Together with YGTSS, Clinical Global Impression for Tourette's syndrome(CGI-TS), Obsessive-Compulsive disorder(CGI-OCD), Attention-Deficit/Hyperactivity Disorder(CGI-ADHD) were administered to all subjects for examining convergent and discriminant validities. Results : We could confirm high internal consistency, convergent and discriminant validities and interrater reliability of YGTSS by analysing data from 100 children with tic disorder. In factor analysis, items were clustered to 2 factors which were identical to motor and phonic tic subscales. Conclusion : The results of this study indicate the Korean form of YGSS is a reliable and valid rating scale for rating tic symptom severity. It can be used to evaluate tic symptom objectively and to quantify the tic severity in the studies for tic disorder.

진행 위암환자에서 Lymphokine-Activated Killer (LAK) 활성의 저하

홍원선,김영환,송재관,강윤구,이진오,강태웅,김정룡 대한내과학회 1990 대한내과학회지 Vol.38 No.3

Natural killer(NK) and lymphokine-activated killer(LAK) activities were determined in 31 patients with unresectable stomach cancer before and immediately after chemotherapy with 5-fluorouracil, adriamycin and mitomycin C(FAM) and 31 healthy volunteers. The major purposes of the study were focused on whether peripheral blood lymphocytes(PBL) in stomach cancer patients had a similar ability in the generation of LAK activity to those in healthy volunteers and what the effect was of chemotherapy with FAM on the generation of LAK activity. LAK cells were generated in vitro by culturing human PBL with 100 U/㎖ of recombinant human interleukin-2(rH-IL-2) for 72 hours. K562(human myelogenous leukemia cell line) and MKN-45(human stomach adenocarcinoma cell line) were used as target cells for NK and LAK activities. NK activity against K562, a sensitive line, was significantly depressed in patients with stomach cancer compared with that in healthy volunteers(p<0.01). However, LAK activity against K562 was similar to that of the controls. Age, sex and performance status(ECOG 0-2 and 3-4) did not have an influence on both NK and LAK activities. LAK activity was significantly higher than NK activity, either against K562 or MKN-45, in both healthy volunteers and patients with stomach cancer(p<0.001). NK and LAK activities against MKN-45, a NK-resistant line, in patients with stomach cancer showed significantly lower levels than those in healthy volunteers. We also analyzed the effect of chemotherapy with FAM on NK and LAK activities, with no suppression of NK and LAK activities being observed. In this study, we have demonstrated that PBL of stomach cancer have a reduced ability to generate LAK activity in response to rH-IL-2. However, LAK activity generated from PBL receiving chemotherapy with FAM was similar to that of PBL without chemotherapy.