원형 탈모증 환자의 혈청 철분 조사

이종석,정현,이성열 순천향의학연구소 1998 Journal of Soonchunhyang Medical Science Vol.4 No.1

Alopecia areata is characterized by rapid and complete loss of hair in one, or more often several, round or oval patches, usually on the scalp. It is not at present possible to attriute all or indeed any case of alopecia areata to a single cause. Among the many factors which appear to be implicated in at least a proportion of cases are the patient's genetic constitution, the atopic state, non-specific immune and organ-specific autoimmune reactions and possibly emotional stress. Iron deficiency as an etiological factor in diffuse alopecia and androgen-dependent alopecia has been discussed previously. We decided to investigate the iron status of alopecia areata patients visiting our department for treatment. All these patients had alopecia areata for at least 6 months before visiting our department. Thirty patients(16 female and 14 male) participated in the study. Blood samples were sent for full blood count, including estimation of mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, Fe, TIBC, and serum ferritin. The results are shown in Table. We suggest that serum ferritin assay should be included in the hematological assessment of patients with alopecia areata.

정전분무를 이용한 MOCVD에 의해 증착된 TiO_2 박막의 특성 연구

이영섭,박용균,이성재,조동율,천희곤 울산대학교 2002 공학연구논문집 Vol.33 No.1

정전분무(electrostatic spray)를 이용한 MOCVD방법은 원료를 함유하는 용액을 이용함으로써 이송관의 가열이 필요 없이 장치를 간단하게 할 수 있고, 용액의 유량과 전기장의 세기에 따라 초미세 입자제어도 가능하며, 출발 용액으로부터 박막의 조성을 조절할 수 있는 등의 여러 가지 특징을 가지고 있다. 온도가 증가함에 따라 입자성장과 반응가스에 의한 표면의 밀도가 감소하여 표면조도가 증가하였다. 증착 시간이 증가함에 따라 막의 두께는 증가하지만, 증착시간이 지날수록 +전하를 띤 액적들은 이미 생성된 막의 영향으로 -가 인가된 기판으로의 전하이동을 방해받으므로 island성장과 모세관현상의 표면형상은 거칠고, porous해졌다. 인가전압이 증가할수록 분무시 액적의 사이즈가 작아지므로 막의 표면은 치밀해졌으며, 표면에는 완전분무하지 못한 모액적에 의해 생긴 입자의 수도 적은 경향을 보였다. 산소 분말이 증가할수록 Ti와 O의 세기는 증가하나, C의 세기는 감소하는 경향을 보였다. The electrostatic spray assisted MOCVD has the advantages of simple apparatus without the gas lines, easy control of nano-sized droplets by applied voltage and solution rates and easy control of compositions of thin films by controlling the composition of starting solution. At lower deposition temperatures the morphology of the layers are less porous and rough. With increasing deposition time and thus increasing layer thickness the morphologies of the layers are shift to porous top layer with dense bottom layer and then porous top layer with big sized grain of bottom layer as the result of low growth rates. XPS can be seen that Ti and O intensity increases but C intensity decreses with increasing O_2 flow rates.

악성흑색종과 양성멜라닌세포성모반에서 bcl-2 단백발현에 관한 면역조직화학적 연구

이성열,이종석,김현조,정현,조현듯,김의한 순천향의학연구소 2001 Journal of Soonchunhyang Medical Science Vol.7 No.2

Background: The bcl-2 protein, contrast to p53, has been shown to be suppress the apoptosis, and overexpression of the bcl-2 protein has been reported in several malignant tumors. Although how the bcl-2 protein takes part in tumorigenesis has not been proved, the bcl-2 positive tumors appeared to have good prognosis in some malignant tumors. The expression pattern of the bcl-2 in melanocytic nevi and malignant melanoma have not been well known. The authors analyzed immunohistochemically expression of the bcl-2 protein to investigate the role of the bcl-2 protein in developing malignant melanoma. Method: 10 malignant melanoma and 10 benign melanocytic nevi were immunostained with anti-bcl-2 monoclonal antibody. Results: In malignant melanoma, 1 case was 2+ positive, 9 cases were 3+ positive. In benign melanocytic nevi, 2 cases were 2+ positive, 8 cases were 3+ positive. Conclusion: Bcl-2 protein is expressed by benign melanocytic nevi and malignant melanoma. There is no difference of bcl-2 protein expression in melanocytic nevi and malignant melanoma.

竝流흐름 氣泡塔內에서 가스 홀드업에 관한 硏究 : Specially on aqueous of inorganic salts 無機鹽 水溶液을 中心으로

李相錄,金相烈 東亞大學校 大學院 1983 大學院論文集 Vol.7 No.-

Gas hold-up was studies according to the changes of Gas and liquid velocity, physical properties, geometrical type of distributor, and temperature for aqueous solution of inorganic salts in a cocurrent flow bubble column. The results were as follows: 1. σf decreases according to the concentration increases. especially this phenomenon was remarkably appeared in aqueous solution of potassium nitrate. 2. The effect of temperature on the gas hold-up was not found when the gas velocity is less than 3.65 cm/sec, but gas hold-up with temperature increase of solution rises up beyond gas velocity of 3.65 cm/sec. 3. The effect of solution velocity to the gas hold-up was not found when the solution velocity is less than 1.76 cm/sec, but gas hold-up with solution velocity increase lay down beyond solution velocity of 1.76 cm/sec. 4. The nondimensional equation by experimental data was represented in equation(7),(8).

미만성 축삭 손상 환자에서의 예후 인자

음성화,임동준,김봉룡,조태형,박정율,서중근,이기찬,이훈갑 대한신경외과학회 1998 Journal of Korean neurosurgical society Vol.27 No.12

새로운 食道二重造影術

이성우,한창열 인제대학교 1980 仁濟醫學 Vol.1 No.1

새로운 食道 二重造影法이 개발됐고 그 方法을 本稿에서 소개하며 실제로 1979년 2월 1일부터 同年 8월 14일까지 537명에게 적용하여 보았다. 發見된 症例中 代表的인 것을 소개하며 이 새로움 方法은 간편하고 쉽게 시행할 수 있고 病의 早期 診斷, 早期 治療에 이바지할 것으로 믿는다. A new double contrast esphagograpy is developed and a practical application is done on 537 persons since February 1, 1979 until August 14, 1979. And representative cases are presented with the review of articles on double contrast esophagography, and this new double contrast esophagography is simple, easy to be performed and excellent to be seen through what is in the esophagus.

相對的動的 筋持久力이 垂直跳 및 最大酸素攝取量에 미치는 影響

李喆熙,金承烈 啓明大學校 生活科學硏究所 1986 科學論集 Vol.12 No.-

After the authors tried to find the effect of Vertical jump and VO₂max in relative dynamic muscular endurance in eight male graduate students of D. University, the main results obtained were as follows; 1. The correlation coefficient between vertical jump and relative dynamic muscular endurance was revealed as a significantly high correlation at the level of 5 percent, r=0.75(p<0,05), ?=1.044X+5.2541, Sy.χ=4.27. 2. The correlation coefficient between VO₂ max and relative dynamic muscular endurance in the Upper Arm was revealed as a negative certainly correlation, r=-0.65, ?=-8.043X+81.90, Sy.χ=4.90, while the Leg turned out a certainly correlation, r=0.44, ?=10.94X+22.04, Sy.χ=11.49.

췌장내 총담관 초음파 신주사법과 인도자로서의 콧수염 싸인

이성우,은충기,한창열,정덕환 인제대학교 1990 仁濟醫學 Vol.11 No.2

저자들은 전향적으로 총 113명의 늑골하 사위주사(subcostal oblique U.S. scan)를 하였고, 췌장내 총담관을 전 예에서 볼 수 있었다. 저자들은, 첫째 간외담관의 전통적인 초음파 주사와 저자들의 '새 방법이 조합되면 간외담관 전장이 깨끗이 보여지며, 이렇게 하기 위한 지표로 십이지하 총담관과 근위고유간동맥-원위총간동맥으로 구성되는 "moustache sign"(콧수염 싸인)의 새로운 싸인을 소개하고, 둘째 원위총담관과 췌장 두부에 생긴 질환을 찾아내고 그 감별점을 소개해 진단적 정확성을 향상시키는 초음파 방법을 제시한다. The authors did the subcostal scans of total 113 patients propspectively and all the pancreas CBD was visualized. The authors would present : 1. to introduce a new landmark "moustache sign", which was composed of infraduodenal common bile duct, and the distal common hepatic and proximal hepatic arteries to visualize the whole common duct, when combined with the conventional ultrasound scans of common duct 2. to present a scanning method to improve the diagnostic accuracy for detecting a disease at the distal CBD and pancreas head, and their differential points.

개량된 초임계수 산화법에 의한 염소계 유기물 (PCB, 4-DCBz)의 완전분해반응

이상환,박기철,박윤열,양종규,김정성,富安博 한국환경과학회 2005 한국환경과학회지 Vol.14 No.5

For the destruction of toxic chlorinated organic compounds, this study proposes improved supercritical water oxidation method (multistep oxidation) using sodium nitrate as an oxidizer. This method solves the problems involved in the existing supercritical water oxidation method. Multistep oxidation means that NaNO₃ is oxidized to N₂ via NaNO₂ and NO. Toxic and hard to destroy organic substances like para-dichlorobenzen(4-DCBz), polychlorinate biphenyl(PCB) ware oxidized to non toxic substances in a condition, in which rapid pressure and temperature rise is restrained as much as possible. 4-dichlorobenzene(4-DCBz) and Polychlorinate biphenyl(PCB) in condition(450℃, p_(w)=0.25g/cm³, 30min) Was discomposed perfectly.

수종의 표피종양에서 p53단백발현에 관한 면역조직화학적 연구

이성열,부태성,이종석,김의한 순천향의학연구소 1996 Journal of Soonchunhyang Medical Science Vol.2 No.2

This study was carried out to evaluate the aberrant expression of P 53 protein using immunohistochemical method in 28 basal cell carcinoma, 24 squamous cell carcinoma, 7 keratoacanthoma, and 4 Bowen's disease. Eighteen out of 28(64.3%) and twenty one out of 24(87.5%) showed positive reaction in the nucleus of basal cell carcinoma and squamous cell carcinoma, respectively. Five out of 7(71.4%) and three out of 4(75%) showed positive reaction in the nucleus of keratoacanthoma and Bowen's disease. In conclusion, our results suggest that the aberrant expression of P53 protein is a common and an important part of the pathogenetic sequence in a majority of cases of epidermal neoplasms.