선택적 신동맥 색전술을 이용한 신절석술 후의 신출혈 치료 1례

이중화,이보배,윤능수,임승수,박청희 충남대학교 의과대학 지역사회의학연구소 1985 충남의대잡지 Vol.12 No.2

A patient with uncontrollable postoperative renal hemorrhage was successfully treated by selective injection of gelfoam into the anterior inferior segmental branch of right renal artery. Follow up arteriography was done 16 days later. It revealed persistent occlusion of the bleeding vessels. This method is a simple effective procedure in cases of renal hemorrhage to diverse etiology without responsive management.

검사자의 과오를 고려한 경제적인 샘플링 검사계획

이만웅,배홍석,이보근,송서일 동아대학교 공과대학 부설 한국자원개발연구소 1995 硏究報告 Vol.19 No.2

In the rectifying single sampling inspection, 9-sampling inspection methods are briefly described, and then the optimal inspection plan to minimize the expected total cost is derived. The results of this experiment through numerical example are: (1) The optimal inspection plan of sampling to minimize the cost with several variables is derived. The result is TC(134, 4)=2321. (2) The optimal inspection plan is obtained when the LTPD is increased, and the sample size, acceptance number and total cost are decreased. (3) The optimal inspection plan is obtained when the lot size is increased, and sample size and acceptance number are also increased. (4) When e₁ is fixed and e₂ is increased, p_(e) is decreased with very small erefore, the type -Ⅰ error must influences on sample size more than the type-Ⅱ error does.

신 혈관근지방종 1례

이보배,이중화,조성중,설종구 충남대학교 의과대학 지역사회의학연구소 1986 충남의대잡지 Vol.13 No.2

Renal angiomyolipoma is an uncommon benign tumor of the kidney, with or without tuberous sclerosis, which is composed with mixture of adipose tissue, smooth muscle and blood vessel. Angiomyolipoma without tuberous sclerosis is usually solitary and unilateral, and is predominent in middle aged women. Its clinical and radiologic features are similiar with renal cell carcinoma, so its preoperative daigonosis is difficult, But recently, nephrotomography, ultrasonography and computerized tomography are helpful in diagnostic procedures. Herein we present a case of renal angiomyolipoma without tuberous sclerosis, in 27 years old male.

연폭로 근로자들에서 빈혈증 관련 인자에 관한 연구

황보영,김용배,김화성,이성수,안규동,이병국 순천향대학교 교수학습개발센터 2004 Journal of Soonchunhyang Medical Science Vol.10 No.3

Objectives : This study intended to obtain the interrelationship of lead exposure indices and anemia related factors for the better health management of lead exposed workers. Methods : 502 male workers in storage battery industries as lead exposed group and 106 male office workers as contorl group were selected for this study. The examined variables wer age, work duration, smoking and alcohol crinking habit, blood zinc protoporphyin concentraion (ZPP), blood lead concentration (PbB), urinary δ-aminoevulinic acid (ALAU), hemoglobin (Hb), hematocrit (Hct), serum calcium (S-Ca), serum iron (S-Fe), total iron binding capacity (TIBC), and percentage trasferrin saturation (PTS). Results : The means of ZPP, PbB ALAU in lead exposed proup were 58.4±35.7 ㎍/㎗, 27.6±10.9 ㎍/㎗, and 1.61±2.00 mg/ℓ, respectively. These three values in lead exposed group were significantly higher than control group (P<.05). The means of Hb, Hct, S-Ca, S-Fe, TIBC, PTS in lead exposed group were 15.3±1.1 g/㎗, 47.2±4.5 %, 9.4±0.4 ㎍/㎗, 124.0±67.5 ㎍/㎗, 317.1±68.5 ㎍/㎗, and 38.7±15.2 %, respectively. Hb, Hct, S-Ca, S-Fe, and TIBC in lead exposed group were significantly lower than contrl group (P<.05). PTS was no significant difference in lead exposed group and control group (P> .05). Hct, S-Ca, S-Fe, PTS were significant positive correlation with Hb and ZPP, corrected PbB, AlAU were significant negaitive correlation with Hb in lead exposed group (P< .05). On multiple regression using ZPP as a dependent variable and PbB, S-Ca and S-Fe as independent variables after adjustment for possible confounder such as age, smoking and drinking habit, Pbb, S-Ca, S-Fe and age contributed to ZPP. Conclusions : As the result of this study, it was suggested that inclusion of S-Ca, S-Fe, PTS measurement as a anemia screening test for lead workers was highly recommended for the effective prevention and early diagnosis of anemia.

Al-Si合金의 閃光法에 의한 熱擴散係數測定에 關한 硏究

許甫寧,裵源泰,徐弘三,李寬洙,朴種一 慶尙大學校 1984 論文集 Vol.23 No.2

本 硏究를 通하여 얻은 結果는 다음과 같다. 1. Al-Si 合金에서 Si量이 增加할수록 熱擴散係數는 감소하나, 共晶組成(Al-12%Si) 部近에서는 亞共晶, 過共晶組成에 비하여 약간 增加하였다. 비열과 비중등의 조건이 一定하다면 熱擴散係數는 pure Al 이 8.47, 亞共晶(6%)組成이 3.24, 共晶組成(12%)이 3.99, 過共晶組成(18%Si)이 3.01(×10-5m2/sec)이다. 2. Cu, P, Na로 개량처리 하였을 때 共晶組成이내에서는 Cu의 경우에 열확산계수가 가장 적었으나, 과공정조성에서는 Cu의 경우가 가장 높았다. After pure Al, Al-6% Si(hypoeutectic composition), Al-12% Si(eutectic comp.) and Al-18% Si(hypereutectic comp.) among Al-Si alloys were treated refinement with addition of Cu(0.5%), P(0.5%) or Na(0.5%), their thermal diffusivities were measured by flash method. And then their microstructures and thermal diffusivities were investigated. The results obtained are as follows. 1. According as sillicon contents in Al-Si alloys increase, the thermal diffusivities decreases, but it increases slightly at eutectic composition(Al-12% Si alloy), if its density and heat capacity are constant, the thermal diffusivities are 8.47(pure Al), 3.24(6% Si), 3.99(12% Si) and 3.01(18% Si) (X10-5m/sec) respectively. 2. When the refinement treated with Cu, P, and Na, the effects of thermal diffusivities of alloys with Cu treated is the lowest under eutectic composition, but its effects is the best at hypereutectc composition.

연취급 근로자들의 사회 심리적 스트레스와 연노출 지표들간의 관련성

김용배,안현철,황보영,리갑수,황규윤,이성수,안규동,이병국 大韓産業醫學會 2000 대한직업환경의학회지 Vol.12 No.1

목 적 : 연취급 근로자를 대상으로 사회 심리적 스트레스 수준을 알아보고 이를 기초자료로 활용하며 사회 심리적 스트레스와 연노출 지표들간의 관련성을 알아보고자 시도하였다. 방 법 ' 1차 연제련업종의 근로자 234명을 대상으로 일반적 특성, 사회 심리적 스트레스, 직업적 특성과 사회적 지지를 문진과 설문지를 통해 확인했으며 연노출 수준을 알기 위해 혈중 ZPP 농도, 혈중연농도, 요중 δ-ALA 배설량, 혈색소, 혈구용적치등을 측정했다. 결 과 : 단일변량 분석결과 혈중 연농도 수준과 직업적 특성에 따른 사회 심리적 스트레스는 유의한 차이가 있었으며 혈중 연농도가 증가함에 따라 스트레스 수준도 증가되는 경향을 나타냈다. 사회 심리적 스트레스와 연노출 지표 및 다른 변수들간의 관련성을 파악하기 위하여 상관분석을 실시한 결과 혈중 연농도만이 사회 심리적 스트레스와 양의 상관관계를 나타냈으며 유의했다. 결 론 : 고농도 연노출의 가능성이 있는 직종인 경우 기존의 연관련 자각증상에 대한 설문조사와 함께 사회 심리적 스트레스 측정도 병행하여 실시하는 것이 연에 의한 건강장해를 조기에 발견하고 예방하는데 필요하다. Objectives : This study was carried out to assess psychosocial distress of lead workers and to examine the relationship between lead exposure indices and psychosocial distress. Methods The study design was cross-sectional and research subjects were 234 lead workers in primary smelting industry. General characteristics, job characteristics and social support were obtained by self-administered questionnaire and history taking. Psychosocial distress was measured using PWI(Psychosocial Well-being Index), a 45-item self-administered instrument. Blood lead(PbB), zinc protoporphyrin(ZPP), δ-aminolevulinic acid in urine (ALAU) were selected as indicators of lead exposure. Results : There was significant difference in PWI according to lead exposure level and job characteristics. The results of correlation analysis showed that PWI was significantly correlated with PbB (r=0.203, p=0.002). Conclusions : Our results supported the association between lead exposure and psy-chosocial distress. The inclusion of psychosoclal distress measurement as a special health examination for lead workers was highly recommended for the effective health manage-ment.

렙토스피라증의 진단에 있어 수동혈구응집반응법과 육안응집반응법의 정확도에 관한 연구

최보율,김영규,이수진,송재철,박항배 한양대학교 의과대학 1994 한양의대 학술지 Vol.14 No.2

Before 1984, Leptospirosis had been reported sporadically in middle inland of Korea as hemorrhagic pneumonia like disease, epidemic pulmonary hemorrhagic fever or epidemic pneumonitis since 1975. The epidemiologic characteristics of this disease were found out and the agent was isolated microbiologically after a large epidemic in 1984. Thereafter many consecutive studies for leptospirosis had been performed in the realm of epidemiology, microbiology and clinical field. But in order to appropriate control of Leptospirosis there are many problems such as organizing surveillance system for early diagnosis and treatment, identifying sero-group and serovar in each epidemic area and assessing vaccine efficacy. The objectives of this study was to find out easily applicable diagnostic methods to be used in a rural community surveillance system. Two diagnostic methods, passive hemagglutination(PHA) test and macroscopic agglutination test(maAT) were measured against their accuracies, sensitivity, specificity and predictive value of positive and negative. 301 sample sera from 270 human cases was collected through Leptospirossis surveillance system in a rural community during 1989-1992. Microscopic agglutination test(MAT) were used for confirmed diagnosis according to WHO guideline with 4 strains; Icterohemorrhagiae lai and Canicola canicola Hond Utrecht IV as standard strians and 6P-014-1 and YP-35-1 as strains isolated in Korea in 1986. The results are as follows. 1. 75(24.9%) among 301 sample sera and 49(18.1%) among 270 persons was serologically positive with MAT. 2. Agreement between PHA and MaAT was very low(k-coefficient≤0.252). 3. In PHA, specificity was very high(≥0.96) but sensitivity was very low(≤0.28). 4. In MaAT, specificity(≥0.73) was relatively lower than PHA but sensitivity (≥0.79) was significantly higher than PHA, especially false-positive rate case was absent in MAT's high antibody titer(above 1:640). It was concluded that MaAT method was a very useful diagnostic tool for early diagnosis of Leptospirosis in a rural community surveillance system, provided that confirmed diagnosis with MAT method be carried out in laboratory of medical school or research institute such as National Institute of Health or Provicial government Institute of Health and Environment.

서울 시내 일부 대학생의 성지식과 성태도에 관한 연구

김보배,노은경,박서영,박영,오승희,전영란,차현진,윤희상,김수지,이자형 이화여자대학교 간호과학대학 2004 이화간호학회지 Vol.- No.38

This study surveyed and analyzed comparatively college students-knowledge' attitude, was to cultivate the right knowledge and attitude on sex, and serve the foundational data for the suitable sex education. The purpose of the study was to identify and examine: 1) students; sexual knowledge and sexual attitude; 2) the differences between variables of gender, age, and self-perceived sexual knowledge in relation to sexual knowledge and sexual attitude; and 3) the relationship between sexual knowledge and sexual attitude. For this study the questionaires were given to 300 students from five different universities located seoul areas. the questionaires were collected Jenuary 8th to 15th in 2004. Two hundred and nigty one samples were analyzed for the study. The adapted SKAT(saxual knowledge & attitude test; Lief & Reed, 1986) was used to determine sexual knowledge and the students' sexual attitude. Collected data were analyzed statistically by means of percentage, t-test, ANOVA test, and pearson correlation analysis with SPSS 12.0 package program. The main results of this analysis are as follows: Participants consisted of male(48.1%) and female(51.9%) which were mainly between the ages of 21.25(71.8%) with an age range of 19 to 30. Knowledge of sexual disease was scored highest of 92.4%, and konwledge of the knowledge of the male and female's anatomy was the lowest at 60.9%. The respondents' level of sexual attitude was tolerant as on average 3.66(on the basis of 5) Relating to the items, the respondents' score of the sexual curiosity was 4.16, sexual behavior 3.85, self-consolation 3.81, aborthon 3.23, virgine 3.19, extramarital experiences 3.17. There were no significant differences in sexual knowledge between male and females, between younger and older students, residence, sexual experience, and how students mainly obtained their sexual knowledge. But a significant difference was also found religion in their sexual attitude(p<.005). In addition, results showed the relationship between sexual knowledge and sexual attitude(P=0.332).

탄소섬유의 CVD-SiC 증착특성에 미치는 CH₃SiCl₃대 H₂의 비율의 영향

박병배,심환보,이보성,이영석,김종환 忠南大學校 産業技術硏究所 1994 산업기술연구논문집 Vol.9 No.2

Chemical vapor deposition of SiC on carbon fibers was investigated to improve oxidation resistance of carbon fibers, which was performed at the horizontal hot-wall reactor using the reactant mixtures of CH₃SiCl₃and H₂ with carrier gas Ar. The chemical composition, oxidation resistance, and tensile strength of SiC-coated carbon fiber were investigated as functions of CH₃SiCl₃/H₂ ratio, reaction temperature, coating thickness, and so on. The composition of deposited layer revealed C rich β-SiC at low hydrogen concentration and Si rich β-SiC at high hydrogen concentration. Because Si rich β-SiC layer is easy to be converted into SiO₂ favorable to oxidation resistance, high input value of H₂/CH₃SiCl₃ mole ratio resulted in good oxidation resistance in the SiC coating layer of carbon fibers.

자궁내막증 백서모형에서 Danazol과 Decapeptyl의 치료효과에 관한 연구

황선보,이민석,심재현,김동훈,배한익 동국대학교 경주대학 1996 東國論集 Vol.15 No.-

본 연구의 목적은 장간막에 자궁내막 조직을 자가이식하여 수술적으로 유도된 자궁내막증 백서모형에서 자궁내막증의 치료를 위해 danazol과 decapetyl의 치료효과를 평가하는 것이다. 백서(n=48)들은 무작위적으로 정상대조군(n=12)과 수술적으로 유도된 자궁내막증군(n=36)으로 구분하였다. 후자는 비치료군과, danazol 치료군과 decapeptyl 치료군으로 세분하였다(각 군의 n=12). Danazol(8mg/일)은 수술후 4째주부터 구강을 통해 투여되었다. Decapeptyl(0.2mg/2주)은 근주하였다. 처음투약후 10일, 20일, 40일, 60일째에 각군의 2마리의 쥐를 희생시켰다. 저자들은 자궁내막증 이식체와 난소의 크기를 측정하여 다음의 결론를 얻었다. 1. 자궁내막증 이식체의 크기는 비치료군에 비해(3.91±1.08mm) danazol 치료군과 decapeptyl치료군에서 (각각2.28±0.17mm 과 2.78±0.97mm), 현저히 감소되었다(p<0.01). 2. danazol과 decapeptyl 두 치료군에서 장기치료가 단기치료보다 자궁내막증 이식체의 크기를 감소시키는데 더 효과적이었다(p<0.01). 3. 난소의 크기는 정상대조군과, 비치료군과 decapeptyl 치료군에서 유의하게 차이를 보이지 않은데 반해(각각 4.46±0.85mm, 4.77±0.82mm과 4.97±0.92mm), danazol 치료군에서는 유의하게 감소하였다(3.97±0.63mm) (p<0.63mm). 백서모형에서 수술적으로 이식된 자궁내막조직의 성장과 발달은 자궁내막증의 병인 이해와 신약개발에 유용한 연구모델을 제공할 수 있을 것 이다. The purpose of this study was to surgically induce endometriosis in the rat by autotransplanting endometrial tissue to the mesentery and to evaluate the efficacy of danazol and decapeptyl for the treatment of endometriosis. Rats(n=48) were randomly assigned to normal control group(n=12) and surgically induced endometriosis group(n=36). The latter was further divided into the untreated, danazol treated and decapeptyl treated groups (n=12 for each group). Danazol(8mg/day) was orally administrated from 4weeks after operation. Decapeptyl(O.2ml/2weeks) was injected intramuscularly. Two rats of each group are sacrificed on the 10th, 20th, 40th, 60th, 80th and lOOth day after the first drug administration. We measured sizes of endometriotic implants and ovaries. The results were as follows; 1. The sizes of endometriotic implants were significantly decreased(P<O.Ol) in the danazol and decapeptyl treated groups (2.28±O.71mm and 2.78±O.89mm, respectively) compared with untreated group(3.91±l.08mm). 2. Long term treatment was more effective than short term treatment in decreasing the size of endometriotic implants in both danazol and decapeptyl treated groups(P<O.Ol). 3. The size of ovaries was not significantly different among the normal control, untreated and decapeptyl treated groups(4.65±O.83mm, 4.77±O.82mm and 4.97±O.92mm, respectively) but was significantly decreased(P<O.Ol) in the danazol treated group(3.97±O.63mm). The successful growth and development of surgically transplanted endometrial tissue in the rat may offer an useful research model that can be used to understand pathogenesis of endometriosis and to explore new drug therapies.