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Microsporum ferrugineum에 의한 몸백선 1예
정홍대,지성근,이원주,전재복,서순봉,방용준,김병수,이석종,김도원 대한의진균학회 2008 대한의진균학회지 Vol.13 No.1
Microsporum (M.) ferrugineum has almost disappeared in Korea after three cases of tinea capitis that were reported in Jeonbuk province in 1993. It was most common cause of tinea capitis in Korea until 1970s. M. ferrugineum produces abundant chlamydospores. Another characteristic of the species is the production of distorted faviform hyphae and long, straight hyphae with thick septa that resemble segments of bamboo. We report a case of 27-year-old female with tinea corporis caused by M. ferrugineum.
정홍대,윤홍식,최승언,Jeong, Hong-Dae,Yun, Hong-Sik,Choe, Seung-Eon 한국천문학회 1989 天文學論叢 Vol.4 No.1
A jet plasmoid model for 3C.449 has been constructed by introducing a plasma.ejecting black hole orbiting around the center of its parent cD galaxy. We examined the characteristics of the jet trajectory by varying the values of (1) orbiting radius and velocity of the black hole, (2) plasma ejection velocity, (3) size, mass and space velocity of the parent galaxy, (4) size of the galactic core and (5) the density of the intergalactic medium. In our model calculation the effect of the gravity by the parent galaxy and the ram pressure by the intergalactic medium have been taken in account. It is found that our dynamical model accounts reasonably well for the observed structure of 3C449. Our proposed model suggests that the buoyancy force near the galactic center plays an important role in the formation of the curved structure of the radio jet.
Acquired Digital Arteriovenous Malformation 7예
정홍대 ( Hong Dae Jung ),지성근 ( Seong Geun Chi ),이석종 ( Seok Jong Lee ),김병수 ( Byung Soo Kim ),이원주 ( Weon Ju Lee ),김도원 ( Do Won Kim ),정호윤 ( Ho Yun Chung ),배한익 ( Han Ik Bae ) 대한피부과학회 2009 대한피부과학회지 Vol.47 No.2
Acquired digital arteriovenous malformation (ADAVM) consists of an abnormal connection between the arteriole and venule in the acral area of extremities, particularly the fingers. Clinically, the lesions appear as small, slightly-elevated, dark brown erythematous macules on the distal part of fingers. The histological specimens shows close approximation between thin-walled venule and thick-walled arteriole and possibly a direct arteriovenous shunt adjacent to each other lying in the dermis. We herein report seven stereotypical cases of ADAVM. (Korean J Dermatol 2009;47(2):203∼207)