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유치의 치근단 병소에 의해 변위된 영구치의 자발적 맹출
강동균,양승덕,김태완,김현정,김영진,남순현 대한소아치과학회 2007 大韓小兒齒科學會誌 Vol.34 No.2
The infection of primary teeth occurs by caries or trauma. But, if it is not treated on time, the complication may occur such as enamel hypoplasia, discoloration, impaction, displacement and dilaceration of permanent successors. The periapical lesion on primary tooth could displace the permanent successors in any direction. Treatment options of displaced tooth are observation after extracting the primary teeth, surgical exposure, orthodontic traction, transplantation and extraction. In these cases, displacement of permanent central incisor caused by the periapical lesion of primary teeth was observed. The spontaneous eruption after extraction of primary teeth was expected considering degree of displacement, development of root and direction of eruption. This case report shows spontaneous eruption of displaced permanent tooth germ was achieved with periodic examination after extraction of primary teeth.
저선량 방사선 조사 시 종자수분함량이 채소류의 발아와 초기생장에 미치는 영향
백명화,김재성,이영근,이영복,양승균 한국환경농학회 2003 한국환경농학회지 Vol.22 No.3
채소종자의 발아와 초기생장에 대한 저선량 방사선과 종자수분함량의 영향을 알아보고자 배추, 무우, 고추, 호박, 참박 각각의 건조종자와 습윤종자에 저선량 감마선을 0~20Gy 수준으로 조사하였다. 수분함량을 상이하게 하여 관찰한 발아와 초기생장에 미치는 저선량 방사선 효과는 작물종에 따라 다르게 나타났다. 발아율의 경우는 건조종자보다 습윤종자에서 대체로 높았으며 저선량 효과는 배추와 호박의 습윤종자 4Gy와 2Gy에서 각각 33%와 13% 증가하여 뚜렷한 효과를 보였고, 참박은 건조종자 4~8Gy에서 높았다. 초기생장은 습윤종자에서 뚜렷한 효과를 보여 배추와 무는 10Gy, 호박은 2Gy, 참박은 8Gy에서 6~26% 정도 증가하였다. 이러한 초기생장 촉진효과는 저선량방사선과 수분함량 상호간에 유의적인 차이를 보였으며 특히 배추와 참박에서 가장 높았다. 즉, 채소 종자의 수분함량을 상이하게 하여 저선량 방사선의 효과를 조사한 결과 적정 수분함량에서 발아와 유묘생장이 촉진됨을 확인할 수 있었다. To investigate the effects of low dose gamma radiation and seed moisture content (SMC) on germination and early growth of vegetable crops, seeds of Chinese cabbage (Brassica camperstris L.), radish (Raphanus sativus L.), red pepper (Capcicum annuum L.), figleaf gourd (Cucurbita ficifolia Bouche) and bottle gourd (Lagenaria siceraria Stand), with different SMC were irradiated with different doses (0-20 ㏉) of gamma-ray by irradiator ^(60)Co, ca.150 TBq of capacity, AECL). Vegetable crops in which low dose gamma radiation was irradiated in seeds with different moisture content showed different response in seed germination and early growth to low dose gamma radiation. The germination rate of Chinese cabbage, figleaf ground and bottle gourd irradiated with 2-8 ㏉ showed interactive responses against relative SMC. Also, significant interactions occurred for the early growth between those factors. The stimulating effects of gamma radiation were more pronounced for hydrated seeds of Chinese cabbage, radish, figleaf gourd and bottle gourd showing prominent responses with 2-10 Gy irradiation, particularly for Chinese cabbage and bottle gourd. These results suggest that radiation may promote germination and early growth of vegetable crops through interaction with SMC.
102명의 비흑색종 피부암 환자에 대한 Mohs 미세도식수술 치료 경험
양보희 ( Bo Hee Yang ),변지원 ( Ji Won Byun ),이승규 ( Seung Gyu Lee ),인승균 ( Seung Gyun In ),이현숙 ( Hyeon Sook Lee ),정기양 ( Kee Yang Chung ),신정현 ( Jeong Hyun Shin ),최광성 ( Gwang Seong Choi ),송희진 ( Hee Jin Song ) 대한피부과학회 2012 大韓皮膚科學會誌 Vol.50 No.11
Background: Mohs micrographic surgery (MMS) is a specialized type of minimal marginal surgery, which offers superior cure rates to other options in the treatment of non-melanoma skin cancers. Objective: The aim of this study is to investigate the clinical characteristics and recurrence rate of the non-melanoma skin cancer and to estimate the safeties of MMS. Methods: We retrospectively evaluated 102 patients who had been diagnosed with non-melanoma skin cancer and treated by MMS from May 2008 to September 2011. Results: The most common cancer was basal cell carcinoma (63.72%), followed by squamous cell carcinoma (31.38%). The local flap was the most common method to repair surgical defects (74.5%), followed by primary closure (17.64%). Cervical lymph node metastasis was confirmed in 1 case (0.98%). Recurrence after MMS was observed in 1 of 102 patients (0.98%). Conclusion: MMS is a safe method for the treatment of non-melanoma skin cancer. (Korean J Dermatol 2012;50(11):931∼936)
A Case of Cicatricial Alopecia Associated with Erlotinib
Yang, Bo Hee,Bang, Chan Yl,Byun, Ji Won,Han, Sung Hyub,Song, Hee Jin,In, Seung Gyun,Shin, Jeong Hyun,Choi, Gwang Seong Korean Dermatological Association; The Korean Soci 2011 Annals of Dermatology Vol.23 No.suppl3
<P>Erlotinib is a small-molecule tyrosine kinase inhibitor (TKI) of the epidermal growth factor receptor (EGFR). Erlotinib has been used primarily to treat non-small cell lung cancer. In addition to its role in tumor cells, EGFR is also an important regulator of growth and differentiation in the skin and hair. Therefore, EGFR-TKIs have been associated with a number of cutaneous side effects including follicular acneiform eruptions, cutaneous xerosis, chronic paronychia, desquamation, seborrheic dermatitis, and hair texture changes. Herein, we report a rare case of a 61-year-old woman who was treated with erlotinib and experienced cicatricial alopecia.</P>