남성화를 보이는 여성에서 발견된 난소의 Steroid Cell Tumor 1예

조인호,정대훈,박영미,서영진,손영실,정철회,강영미,정수전,김영남,이경복,성문수,김기태 인제대학교 2006 仁濟醫學 Vol.27 No.-

Steroid cell tumor is a rare ovarian sex cord-stromal tumor which accounts for 0.1% of all ovarian tumors. Until now, only 4 cases have been reported in domestic literatures. Steroid cell tumor often secrets testosterone and presents virilization in adult women or precocious puberty in children. Treatment is often performed by surgical removal, adjuvant chemotherapy and radiation, but completely accepted treatment was not existed. We experienced a case of steroid cell tumor, which was manifested by typical virilization in a 43-year old patient, who was previously performed hysterectomy and unilateral oophorectomy. So, we present with a brief review of the literatures.

고등학교 육상 선수와 일반 학생의 콜레스테롤 조성에 관한 비교 연구

남태호,황영성,김귀원 釜山大學校 附設 體育科學硏究所 1993 體育科學硏究所 論文集 Vol.9 No.-

Background : This study was designed to investigate on cholesterol composition between athletes and common students. Method : The subjects of this study are nine athletes and random selectional ten students in B high school. BMI, % Fat, TC, HDL-c and LDL-c were measured and compared, and correlation and difference between each variable was investigated. Results : Between the player group and the control group, BMI has significant difference (p<.05), and in the control group, BMI and % Fat have significant correlation. In the player group, there is a significant correlation between TC and TC/HDL-c (P<.01), and in the control group, there is a very significant correlation (P<.001). The correlation between LDL-c and LDL-c/HDL-c in the player group is significant (P<.01), and one of the control group is very significant. (P<.001) There is no significant correlation of HDL-c, LDL-c, TC/HDL-c, LDL-c/HDL-c in the player group, on the other side, there is each significant correlation by the level of P<.05, P<.001, P<.001 in the control group. There is no statistically significant difference in HDL-c, LDL-c between the player and the control group, but from the mean of them, the player group has higher level of HDL-c (0.3 mg/dl), and lower level of LDL-c (0.9 mg/dl) than control group. And the player group has higher 5.0 mg/dl TC than the control group. nificant.(P<.001)

환기정도에 따른 수술실용 신발 종류가 수술실 오염에 미치는 영향 : How to Choose Suitable Shoes?

남경동,정혜선,박영신,원진희,주미자,성화신,이지혜,이병희,조경숙,배재춘 한국의료QA학회 2000 한국의료질향상학회지 Vol.7 No.1

Background : Various types of protective footwear have been used to minimize bacterial contamination in operating rooms. In recent years, debate has arisen concerning the need for use of such protective footwear. This study was designed to provide useful data about choosing shoes most suitable for the surgical environment. Methods : Between November, 1999 and January, 2000, we performed this experimental study by comparing effect of three types of shoes (i.e., disposable shoescover, operating room-restricted shoes, and ordinary shoes) on bacterial contamination of operating rooms equipped with two different ventilation systems (i.e., high air-change, low air-change) respectively. Data were collected during two-hour sham operations in which subjects and their activities were strictly standardized. Bacterial flora were sampled from the study area floor and air colony-counts were measured. Results : In experiments involving high air-change ventilation system, there was a significant difference of floor contamination between three types of shoes, but no difference of air contamination. Under low air-change system, there was a significant difference of both floor and air contamination between three types of shoes. Conclusion : The results show that protective footwear would be unnecessary in the operating room with high air-change ventilation system, but it is important to choose suitable shoes carefully under low air-change system. Therefore, the use of outdoor shoes can be considered under high air-change system, but it would seem sensible to apply their first use in less bloody operations at the day surgery center or out-patient department to prevent transfer of body fluid into the outside environment.

그레이브스병에서 치료에 따른 폐동맥압의 변화

남택만,조한수,이진서,송영림,김두만,두영철,박철영,정인경,홍은경,이성진,오기원,김현규,유재명,최문기,유형준,박성우 대한내분비학회 2003 Endocrinology and metabolism Vol.18 No.5

연구배경: 갑상선기능항진증에 의한 갑상선중독증 환자들은 호흡곤란을 호소하며, 그 원인으로 호흡근의 근력 약화, 좌심실부전으로 인한 폐모세혈관의 울혈, 기도저항의 증가, 갑상선종으로 인한 기관의 압박, 호흡기능 이상 등이 거론되고 있다. 폐동맥고혈압이 동반된 그레이브스병 환자가 여러 증례가 보고되었으며, 폐동맥고혈압 환자에게서 갑상선 자가항체와 갑상선기능저하증의 빈도가 높음이 알려지면서 갑상선중독증이 동반된 그레이브스병 환자에게서 관찰되는 호흡곤란의 한 원인으로 폐동맥압 증가가 작용할 가능성이 제시되고 있다. 이에 저자 등은 그레이브스병 환자를 대상으로 폐동맥압을 측정하고 치료 전후의 폐동맥압의 변화를 전향적으로 연구하였다. 방법: 갑상선중독증이 동반된 그레이브스병 환자와 정상 갑상선기능을 나타낸 대조군을 대상으로 갑상선기능검사 및 갑상선 자가항체를 측정하고, 심초음파를 이용하여 치료 전후로 폐동맥압을 측정하여 폐동맥압과 갑상선기능 및 갑상선 자가항체와의 관계, 폐동맥압의 변화 등을 관찰하였다. 결과: 1. 연구대상은 대조군 10명 (남녀비 1:9, 관해 상태의 그레이브스병 3명, 갑상선종 3명, 정상인 4명), 그레이브스병 환자 26명 (남녀비 7:19)이었다. 2. 대조군과 치료 전 그레이브스병 환자의 폐동맥압은 각각 23.5±2.32 mmHg, 29.6±10.3 mmHg이었고, 치료 전의 폐동맥압과 혈청 갑상선자극호르몬 결합억제 면역글로불린 (TBII) 농도는 유의한 양의 상관관계를 보였다. 3. 26명의 그레이브스병 환자 중에서 10명 (38.5%)이 폐동맥고혈압 (기준: 폐동맥압 > 30 mmHg)으로 진단되었다. 4. 치료 전후로 폐동맥압을 측정한 13명은 폐동맥압이 치료 전 29.6±10.3 mmHg에서 치료 후 폐동맥압 22.2±6.48 mmHg로 의미있게 감소하였다. 결론: 갑상선중독증을 보이는 그레이브스병 환자의 약 40% 정도에서 폐동맥고혈압이 발견되어 폐동맥고 혈압은 그레이브스병에 흔하게 동반하는 질환으로 생각된다. 향후 그레이브스병 환자에서 관찰되는 폐동맥압의 증가와 관련한 병인, 발생기전 및 임상적 의의 등에 대한 연구가 필요할 것으로 생각된다. Background: Exertional symptoms, dyspnea and impaired effort tolerance are common in patients with Graves' disease. Proposed explanations include: high-output left heart failure, ineffective oxygen utilization and respiratory muscle weakness. In addition, pulmonary hypertension has also been reported in patients with Graves' disease. A high prevalence of hypothyroidism and positive thyroid autoantibody were also observed in patients with pulmonary arterial hypertension. Therefore, the pulmonary artery pressure in patients with Graves' disease was evaluated. Methods: Two-dimensional and Doppler echocardiographic examinations (Hewlett Packard Sonos 2500) were performed to determine the pulmonary artery (PA) pressure in 26 Graves' disease patients, both before and after treatment (23 patients with propylthiouracil and 3 with RAI), and in 10 euthyroid controls. The changes in the PA pressure after treatment were evaluated in 13 patients with Graves' disease, who became euthyroid after treatment. Results: The pulmonary artery pressure was increased in the untreated Graves' disease patients compared to the normal controls (23.5±2.32 vs. 29.6±10.3 mmHg). 38.5% of the Graves' disease patients (10/26) showed pulmonary arterial hypertension (PA>30 mmHg) and the serum TBII level was higher in the Graves' disease patients with pulmonary arterial hypertension than in those with normal PA pressure (P<0.05). In the Graves' patients who became euthyroid after treatment, the PA pressure was significantly decreased. Conclusion: 38.5% of the untreated Graves' disease patients showed pulmonary arterial hypertension, and the pulmonary artery pressure was significantly decreased in those who became euthyroid after treatment. The pathogenesis and clinical importance of pulmonary arterial hypertension in Graves' disease requires further studies (J Kor Soc Endocrinol 18:465∼472, 2003).

초음파 자동 검사시스템의 개발과 오버레이 용접부의 결함검사

남영현,성운학 한국비파괴검사학회 2000 한국비파괴검사학회지 Vol.20 No.6

발전 및 산업설비에 사용되는 많은 압력용기는 저합금가강을 사용하여 제작되고 있다. 압력용기의 내면은 부식이 미치는 영향을 최소화하기 위하여 오스테나이트계 스테인리스강으로 덧살용접을 하고 있으나, 용접 층간의 계면에서 발생하고 있는 박리균열은 압력용기의 신뢰성에 중요한 변수가 되고 있다. 본 연구에서는 DSP를 사용하여 오버레이 용접부를 고속으로 검사할 수 있는 C-scan 시스템을 개발하였다. 본 시스템은 신호 처리부 (오실로스코프, 펄서.리시버, 디지타이저, DSP), 스케너, 프로그램 및 위치 제어부로 구성되어 있다. 개발된 시스템을 사용하여 실제 오버레이 용접부에 대한 초음파검사를 실시한 결과 고속으로 신뢰성 높은 검사결과를 얻을 수 있었다. Many pressure vessels for power and industrial plant are fabricated from low alloy carbon steels. The inner sides of pressure vessels are commonly weld-cladded with austenitic stainless steels to minimize problems of corrosive attack. Disbonding cracks are often detected at the transition region of welding interlayer, which is serious problem to reliability of pressure vessels. We have developed C-scan system to high speed inspection of overlay weld using DSP(digital signal processor). This system consists of signal processing parts (oscilloscope, pulser/receiver, digitizer, DSP), scanner, program and position controller. The developed system has been applied to a practical ultrasonic testing in overlay Weld, and demonstrated high speed with precision

야생 등줄쥐 (Apodemus agrarius coreae) 간뇌의 Dopamine성 신경세포

정영길,이남섭,민성기,김무강 대한해부학회 1997 Anatomy & Cell Biology Vol.30 No.6

등줄쥐 연수의 Tyrosine Hydroxylase, Dopamine-β-Hydroxylase 및 Phenylethanolamine-N-Methyltransferase 면역반응신경세포

정영길,이남섭,민성기 대한해부학회 1998 Anatomy & Cell Biology Vol.31 No.3

덤프 소각기에서 CCI_4/C_3H_8 분해 특성에 관한 연구

전영남,채종성,송형운,김미환 조선대학교 환경연구소 2001 環境硏究 Vol.17 No.1

A major source of the hazardous waste generated is from chemical industries producing plastics, herbicides, pesticides and chlorinated solvents. All of these process produce a class of hazardous waste termed the chlorinated hydrocarbons(CHCs), either directly or from undesirable side reactions. Generally, hazardous waste is physical characteristics of difficult destruction at high temperature. We investigated the destruction characteristics of hazardous waste through incineration. A nonequilibrium combustion model was used to describe the effect of the chemical kinetics due to the flame inhibition characteristics of CCl_4 which was used as the surrogate of hazardous waste. In this study, the numerical simulation data for 3-dimensional dump combustor shows a quantitative good agreement with experimental data. Also dump incinerator shows high destruction efficience of CCl_4. And parametric screening studies was carried out through numerical simulation with changed CCl_4/C_3H_8 ratio, waste injection velocity and waste equilibrium ratio.

플라스틱의 열분해 및 촉매분해 특성연구

조남운,김한수,안영일,박영성 大田大學校 環境問題硏究所 1999 환경문제연구소 논문집 Vol.4 No.-

Themal and catalytic pyrolysis of plastics have been carried out. The thermogravimatric analyzer(TGA) and batch type laboratory scale catalytic reactor were used as experimental rigs. Pure or waste plastic samples(HDPE, PP,PS, ABS), collected from domestic industry were used for the experiment. The powder of silica alumina(50g) was used as catalyst for pyrolysis. The experimental results showed that the decomposition temperature was increased with an increase of heating rate, because of time lag associated with heating of plastic samples. It was also found that the maximum decomposition rate and decomposition temperature of HDPE are much higher than those of other samples.

한국과 일본의 초등학교 교사 양성체제에 관한 비교 연구 : 초등학교 과학교사를 중심으로

김재영,임채성,김경호,김남일,권치순,松本伸示 서울교육대학교 2003 한국초등교육 Vol.14 No.2

In this study, preparation system for elementary school science teacher in Korea and Japan was compared and analyzed. The study is composed of two parts. In the first part, the science curricula for elementary schools of the two nations were compared, and in the second part the preparation systems for teacher were compared. The results are as follows: First, the instructional hours allotted to science in Korea is higher than those of Japan. That is, while in Korea 102 instructional hours are allotted to science in every grade from 3rd to 6th grades, in Japan 70 hours are allotted in 3rd grade to 95 hours in 6th grade. Second, the science teacher-preparation systems of the two nations are differ manly in the courses provided to prospective elementary teacher. In Korea, the system is managed in purposeful, unified, and closed type, while in Japan the system is operated in several types, including parallel, integrative, connection of the undergraduate and graduate levels, and open types. Especially, in Korea the prospective teachers take subjects through relatively straightforward way which lacks of more specialized courses, and in Japan the courses are divided into three ways. including more specialized course for specific areas such as social science and science. which enable the prospective teachers to take the course on their decisions. Additionally, the areas of educational practices are more specifically divided in Japan. These results may have important implications for the preparation of able teachers for elementary science and improvement of quality of science instruction at schools.