상악동에 발생한 안면의 섬유성 이형성증 최연소 증례

유영삼,우훈영,조경래,최정환 인제대학교 2008 仁濟醫學 Vol.29 No.-

Fibrous dysplasia is a rare fibroosseous lesion characterized by replacement of normal spongiosa and filling of the medullary cavity of affected bones by an abnormal fibrous tissue. the skeletal structure. Its appearance in infancy is extremely rare. The authors report a case of maxillary fibrous dysplasia observed in a 36 days old infant as a left maxillary swelling. Excisional biopsy was performed to confirm diagnosis. At 1 year follow up, no new growth has been observed without further treatment. This is the youngest case never reported at any references.

하비도 외측벽에서 발견한 상악동 부공 1례

유영삼,우훈영,조경래,최정환 인제대학교 2008 仁濟醫學 Vol.29 No.-

An accessory ostium can be found in the posterior fontanelle of the maxillary sinus during endoscopic examination of the nasal cavity in approximately one quarter of patients. It is not uncommon to find an accessory ostium in a CT scan. Recently, we removed a polyp from inferior meatus of a thirteenyears old girl. After polypectomy, we found accessory ostium of maxillary sinus in the inferior meatus. As far as we know, this is the first case of ectopic accessory ostium of maxillary sinus.

해안서식 어패류 중 유해중금속 함량에 관한 연구 (Ⅰ)

유영찬,정진일,박유신,이종숙,인상환,최동기,김동우 內務部 國立科學搜査硏究所 2002 國立 科學 搜査 硏究所 年報 Vol.34 No.-

사람 비만세포주에서 Clozapine과 Fluoxetine에 의한 케모카인 및 케모카인 수용체의 상이한 발현

유영민,김종우,조정제,임강현 대한생물치료정신의학회 2001 생물치료정신의학 Vol.7 No.2

Objectives : It has been suggested that the immune system has a role in the pathophsiology of neuropsychiatric diseases. There are some reports that clozapine and fluoxetine affect on cytokine networks. Recently, it has been known that chemokines have chemotactic effect, and modulate a number of biological responses including the process of inflammation and the maintenance of CNS homeostasis. In the present study, we investigated the effect of clozapine or fluoxetine on the expression of chemokines and their receptors. Methods : Human mast cells(HMC-1) was incubated with phorbol myristate acetate(PMA, 100ng/㎖) and calcium ionophore A23187(350ng/㎖) for 3 hours. Colzapine(10^-7M) or fluoxetine(10^-7M) were pretreated for 1 hour. RT-PCR was performed for the detection of expression of various chemokines and chemokine receptors. Results : after treatment of clozapine, the expression of MCP-1, MIP-1β, CCR3,CXCR2, CXCR3 and CXCR4 were lower than the PMA/Ca ionophore-treated group, while the expression of MIP-1α, RANTES and IL-8 were not changed. However, fluoxetine was not affected the changes of expression of various chemokines and chemokine receptors. Conclusion : This result indicates that clozapine may affect on the expression of chemokines and chemokine receptors. Therefore, this study could, in part, provide the important basic data on the explanation of side effects of clozapine, such as fever and pancreatitis.

Telescopic 증폭기를 이용한 고속 LVDS I/O 인터페이스 설계

유관우,김정범 강원대학교 정보통신연구소 2007 정보통신논문지 Vol.11 No.-

This paper presents the design of input/output (I/O) interface circuits for 2.5Gbps operation in a 3.3V 0.35m CMOS technology. Due to the differential transmission technique and low voltage swing, LVDS (low-voltage differential signaling) has been widely used for high speed transmission with low power consumption. This interface circuit is fully compatible with the LVDS standard. The LVDS proposed in this paper utilizes a telescopic amplifier. This circuit operated up to 2.5Gbps. The circuit exhibits a power consumption of 21.04mW.

양성 대칭성 지방종증 1예

유영삼,우훈영,조경래,최정환 인제대학교 2008 仁濟醫學 Vol.29 No.-

Benign symmetric lipomatosis is a rare disease. Its main characteristic is the symmetric massive deposits of adipose tissue, in unencapsulated form, predominatly on the neck, shoulder, back and upper exterimities. We report a case of a sixty one years old man with benign symmetric lipomatosis. He had a history of alcoholic liver cirrhosis. Due to cosmetic defomity, he wanted surgical treatment. We did a cervical lipectomy. He was satisfied with the result, and there was no evidence of recurrence.

주물공장 근로자에서 발생한 국한성 석면폐증 1예

김태우,고동희,김민기,유승원,류향우,한정희,정순희 大韓産業醫學會 2009 대한직업환경의학회지 Vol.21 No.2

배경: 주물공장 근로자에서 발생한 석면폐증의 작업 관련성을 평가하고 그 증례를 보고하고자 한다. 증례: 30년간 주물공장에서 근무한 환자로 인후통, 기침, 노란 가래가 있어 검사한 결과 결핵이 의심되어 치료 하였으며, 치료 중 석면폐증으로 진단되었다. 작업 관련성 평가를 위해 실시한 폐 조직의 조직학적 검사에서 1 cm^(2)당 3개의 석면소체가 발견되었고, 투과전자현미경으로 분석한 석면 함유량은 23.26x10^(6) fibers/g이었다. 결론: 작업환경조사, 폐 조직의 석면 분석 등을 통해 작업 관련성이 높다고 판단하였다. Background: Foundry workers are known to be exposed to silica and have an increased risk of Silicosis. There are also reports that state these foundry workers were associated with asbestos-related change in the X-ray results of the lungs. This report discusses a case of localized asbestosis developed in a foundry worker who worked in 12 Korean foundries. Case report: A 49-year-o1d man who worked at molding and melting for 30 years, Presented with sore throat, cough and yellow sputum for 1 month. From physical and clinical examination, Pulmonary tuberculosis was highly suspicious; therefore, he was medicated for 6 months. After tuberculosis medication, the radiological finding was reactivation of tuberculosis, and an asbestos body was detected at a trans-bronchial lung biopsy. During an operation, operators found multiple palpable masses and bullae 10calized in the right upper lobe (RUL) and performed right upper lobectomy and right middle lobe wedge resection. Using hematoxylin-eosin stain and iron stain, we could detect asbestos bodies by light microscopy. We analyzed the asbestos fiber burden in dry lung tissue by transmission electron microscopy with energy dispersive X-ray spectrometer (TEM-EDX). The fiber type was chrysotile and the fiber burden was 23.26 x 10^(6) fiber/g dry lung. Discussion: This case study of a foundry worker with localized asbestosis is uncommon in Korea. We found an occupational relationship between the foundry worker and localized asbestosis through various investigative techniques such as measurements taken at his working environment, clinical, radiological and pathological examination of the foundry worker and mineralogical examination of the asbestos fiber.

UASB에 의한 有機性 廢水處理의 溫度影響에 관한 硏究

姜龍太,崔廷宇,全裕燦 東亞大學校 海洋資源硏究所 1991 硏究論文集 Vol.4 No.1

The purpose of this research was to investigate the effects of temperatures on the wastewater treatment. The experimental results used synthetic wastewater showed that removal efficiency of UASB ranged from 83 to 93 percents within a temperature ranges of 20 to 35℃, which indicated that the removal rates decreased approximately 2 or 3 percent as the temperatures reduced at intervals of 5℃. The production of waste sludge was a little, on the other hand, the treatment efficiency of it was very high. Obtained from this experimentation the values of temperature characteristic term(θ), Q?? and activated energy(E??) were 1.053, 1.69 and 9349cal/mole, respectively. We could find out the size and concentration of granular sludge decreased in proportion to the reduction of temperature, and a filamentous bacteria of Methanothrix spp. was prevailed more than a bacteria of other species in the granules.

신고리 지역 기상관측을 통한 계절별 대기안정도 특성분석

송상근,김유근,오인보,정주희,조윤미,우경은,강태훈 부산대학교 환경문제연구소 2003 環境硏究報 Vol.21 No.-

In this study, we analyzed the characteristics of atmospheric stability to investigate local environment change at an atomic power plant in Gori region. The used data was obtained from field observation of major meteorological variables such as wind direction and speed, air temperature, relative humidity, and solar radiation using AWS (Automatic Weather System) in Gori region from February to September in 2003. As a result, when strong northerly winds (more than 4~6 m/s) and weak northwesterly winds (2~3m/s) blow, atmospheric stability was neutral and stable from winter to spring, respectively. Atmospheric stability (neutral) in summer was similar to that in two other seasons (winter and spring), but it was stable for weak southwesterly winds (2~3 m/s). Finally, atmospheric stability was neutral for strong winds (over 4~6 m/s) in fall without respect to wind direction, while that was stable for very weak winds (less than 2 m/s).

청소년자녀와 어머니를 위한 세대간 이해증진 프로그램 개발 및 실시

김명자,이정우,계선자,박미선,송말희,김경아,박수선,유을용,정진희 대한가정학회 2003 Human Ecology Research(HER) Vol.41 No.1

The relationship between adolescent children and parents has a profound effect on not only the adolescents development into healthy adults but also the psychological welfare of the parent. A program focused to improve adolescents relationship with parents has not been developed until now. To achieve the educational goals enhancing mutual understanding, it is more effective to educate both the parents and adolescent childern. Thus, this study developed and carried out a program in which adolescent children and mothers, being fully in charge of raising children, participated. The study analyzed the program effects after implementing on 6 pairs of adolescent children and mothers. The results are as follows: 1) adolescent children and mothers placed high values on the fact that they can understand each other well, 2) both parties accepted each other by recognizing the inevitability of the generation gap, and 3) the program gave them a chance to admit that they should try to communicate openly. Most of all, adolescent children could find self-confidence while mothers could collect valuable data essential to raise children and build a new mother's role model adapting to social changes.