크롬(Ⅵ)의 체내 흡수와 소실속도에 관한 연구

김현영,이성배,임철홍,이권섭,정용현,이종성,한정희,전윤석,황호순,이용묵 한국산업위생학회 2003 한국산업보건학회지 Vol.13 No.1

The CrO3 mostly used in plating. metal surface disposal, leather, cosmetic manufacturing, as an experiment material by repeatedly inhaling and exposure the male S.D. rats at a 0.00, 0.2., 0.50, 1.25 mg/㎡ concentration(particle size: 0.5-0.5 aerosol)6hours a day, 5day a week in 13weeks comparing with 2weeks, 8weeks of recovery group about the noxiousness of the experiment animal and the reduce scale of the CrO3 in the internal organ especially in blook and respiratory organ with the period of convalescent and clearance. The experiment results which we received are as follows. 1. In blood the RBC, HGB and HCT experiment, rats with 0.20, 0.50 mg/㎡ concentration showed that there were some decreases but not dependent. The kidneys absolute weight compared with control group was reduced intentionally(p〈0.05) and the lungs absolute weight compared with control group showed intentional increase(p〉0.05). 2. After the exposure of the experiment material, the whole blook, l\blood plasma and red blood cell in blood by (x): the period of convalescent, per (y); the decreasing of Cr concentration, was y=66.51 e -0.057x, y=67.2 e-0.101x, y=70.01 e-0.030 in 0.50 mg/㎡ exposure concentration by calculating the clearance coefficient of correlation, and the half life (day)was estimated 12.0, 6086, 23.0 each. 3, After the exposure of the experiment material, the experiment animals lung, liver and kidneys by(x); the period of convalescent, per (y); the decreasing of Cr conentration, was y=1808 e-0.00493x, y=12.02e-0.0297x, y=67.61 e-0.0292x in 0.50mg/㎡ exposure concentration by calculating the clearance coefficient of correlation, and the half life(day)was estimated 140.6, 23.3, 23.7, each, and including lung, liver with all of the experiment internal organs, the Cr clearance decreased as the exposure concentration increased.

서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)

김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1

In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.

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.

노년기 신체활동이 정신건강에 미치는 영향

이상연,이명섭 중앙대학교 스포츠과학연구소 2001 體育硏究 Vol.- No.15

The purpose of this study in to analyze hoe the physical activity of old adults influences on the mental health. The Simple Mental Testing was parcticed for the 100 of physical players and 60 of non-physical palyers, the total of 160, above 60 years old who live in the city of K. After that, we made a conclusion as the following; 1. When we compared the mental health of physical players with those of non-physical players, the physical activity of old physical players were certainly better than those of non-physical players in the field of somatization, fear, depression and anxiety. So, the physical activity had a good effect on the mental health of old adults. 2. When we analyzed the mental health according to the time of the physical activity, old physical players who exercised over 30 minutes were certainly better than those who did under 30 minutes in the field of somatization, fear, depression and anxiety. 3. When we analyzed the mental health according to the frequency in the physical activity, old physical players who exercised more than three times a week were better than those who did below three times a week in the field of somatization, depression and anxiety. 4. When we analyzed the mental health according to the period of the physical activity, old physical players who exercised over one year were better than those who did under one year in the field of somatization, fear, depression and indignation.

마이크로 컴퓨터를 이용한 다종의 전동기 속도제어 장치의 설계

李俊煥,宋祥燮,咸雲哲 全北大學校 1983 論文集 Vol.25 No.-

In this paper, we show that synchronous and dc motor speed controllers are designed with PLL based frequency synthesizer method. In addition, microcomputer based stepper motor speed controller is also designed. All these controllers are connected to SRC-80 microcomputer to input the speed command through hex-key button.

이단계 혐기성/호기성 반응기를 이용한 Reactive Blue 114의 생분해

이성호,오유관,김효섭,박성훈 부산대학교 환경문제연구소 1998 環境硏究報 Vol.16 No.-

난분해성 안트라퀴논계 염료인 Reactive Blue 114를 이단계 혐기성/호기성 반응기를 이용하여 분해하고자 하였다. 혐기성 반응기로 Upflow Anaerobic Sludge Blanket (UASB) 반응기를 이용하였고, 호기성 반응기로는 전통적인 활성슬러지조를 사용하였다. 혐기성 UASB 반응기는 2개월 동안 염료를 투입하지 않고 start-up 과정을 거친 후 염료를 투입하여 염료 농도의 영향과 수리학적 체류시간(HRT)의 영향을 조사하였다. 염료 제거율은 염료농도가 증가하거나 HRT가 감소할수록 감소하였다. 혐기성 UASB 반응기로 측정한 최대 염료제거속도는 52 mg/L · day이었다. 1차 혐기성 처리수를 호기성 반응기를 이용하여 처리하였을 때 색도 기준으로 염료 제거는 관찰되지 않았다. HPLC를 이용하여 1차 혐기성 처리수를 분석하였을 때 Reactive Blue 114의 중간 분해 산물이 확인되었고, 이들 물질은 2차 호기성 처리시 제거되었다. Biodegradatiorn of C. I. (Color Index) Reactive Blue 114 was investigated by using continuous two stage reactor anaerobic/aerobic reactors. An Upflow Anaerovbic Sludge Blanket (UASB) and conventional activated sludge reactor were used as an anaerobic and aerobic reactors, respectively. During the start-up operation for 2 months, UASB reactor was operated without dye and then fed with a subtoxic concentration (5 mg/L) of Reactive Blue 114. After reaching a steady state, the effect of dye concentration and hydraulic retention time (HRT) were studied. With increasing dye concentration and decreasing HRT, dye removal efficiency decreased. The highest removal rate of the Reactive Blue 114 obtained was 52 mg/L · day. In the aerobic reactor, color removal was not observed regardless of the operating conditions. The degradation intermediates of Reactive Blue 114 were analyzed by HPLC. Some intermediates were detected from the effluent of UASB, and they were apparently degraded further by the aerobic process.

圓光大生의 宗敎觀과 信仰意識에 對한 調査硏究

李相基,宋華燮 원광대학교 학생상담센터 1983 學生指導硏究 Vol.- No.3

ELISA 방법에 의한 홍색비유황광합성세균의 Lipopolysaccharides 사이의 혈청학적 유연관계

이상섭,이현순 성균관대학교 기초과학연구소 1989 論文集 Vol.40 No.2

홍색비유황광합성균의 lipopolysaccharide에 대한 혈청학적유연관계가 enzyme-linked immunosorbent assay 방법에 의해 조사되어졌다. Rhodobacter capsulatus는 Rhodopseudomonas palustris, Rhodobacter sphaeroides와 혈청학적 유연관계가 있는 것으로 나타났고, Rhodopseudomonas palustris는 Rhodopseudomonas viridis와 유연관계가 있는 것으로 나타났다. Rhodospirillum rubrum과 Rhodocyclus tenuis는 어느 종과도 혈청학적 유연관계가 없는 것으로 나타났다. The serological relationships among lipopolysaccharides from purple nonsulfur photosynthetic bacteria, 4 genera, 11 species, was investigated by enzyme-linked immunosorbent assay. Rhodobacter capsulatus showed serological relationship with Rhodopseudomonas palustris and Rhodobacter sphaeroides. Rhodopseudomonas palustris showed serological relationship with Rhodopseudomonas viridis but Rhodospirillum rubrum and Rhodocyclus tenuis didn't show serological relationship with other species.

천연 Gum의 생체적합성에 대한 연구

이한섭,최성부 용인대학교 자연과학연구소 2008 自然科學硏究所論文誌 Vol.13 No.1

Natural gum films were prepared by solution blending method in the weight ratio of natural gums(Xanthan, Locust bean and Guar) for the purpose of useful bio-compatibility materials. The possibility of bio-compatibility materials, which prepared from natural gums as a skin substitute of rats were evaluated by measuring biodegradability. This biodegradable films were inserted in the back of rats and their of biodegradability were investigated by hematological change evaluation as a function of time to the bio-transformation. These values of bio-compatibility materials films, which prepared from natural gums measured in this study were some stable results at short period with those of ideal skin with bio-compatibility materials.

자기공명영상을 이용한 정신분열병 환자의 뇌량크기 측정

성상율,구자섭,조근호,원승희,이종훈,박종한 대한생물치료정신의학회 2004 생물치료정신의학 Vol.10 No.1

Objectives : Nowadays many studies with MRI have reported structurai abnormalltles of corpus callosum of schizophrenic patients. However, the results are various and inconstant. In this study, we attempted to identify structural change of C O ~ U S cailosurn. Method : We measured the size of corpus callosum of the 24 schizophrenia patients (male 11, female 18) who were diagnosed by DSM-IV (19943, visited at department of psychiatry, catholic university hospital of Daegu from January 2002 to December 2003, by using midline sagittal slice of MRI. These results were compared with the size of corpus callosum of 25 controls (male 7, female 78). We divided corpus callosurn into 7 areas. We calculated and compared the areas of each subregion, mid-sagittal cerebral area, and entire corpus callosum. The results were analyzed by independent t-test. Result :When we compared subregion to corpus callosum adjusted wth mid-sagittal cerebral area, schlzoph-renia patients had significantly smaller genu (1.64k0.32 vs. 1.43k0.26 p<O.O5) and splenium (2.16f0.27 VS. 1.96+0.30 ; ~(0.05). Similarly, the ratio of total corpus callosum to midline sagittal cerebral area (%)(7.50*0.72 vs. 6.90t0.82 ~(0.05) was significantly smaller In schizophrenia than control group. Conclusion : In this study, we found significant differences in corpus callosum between schizophrenic patients and normal control group.