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동창림,동춘희,동련화,박종서 中央醫學社 1990 中央醫學 Vol.55 No.8
In augmenting the Oriental noses with silicon implants Dong's guider innovated and has been applied to faciliation of the surgery among the population of the cosmetic cases of more than 70,000 in the Peiple's Republic of China. Using Dong's guider takes the operation time only three to five minutes and attains to high efficancy. This new technique is merely simple and lessens the patient's distress.
자녀의 문제행동에 대한 도움추구 방식과 정신과 진료에 대한 만족도 : 다기관 시점 역학조사
이영식,서동수,홍성도,안동현,송동호,김붕년 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.6
Objectives : This study was done to evaluate present status of child and adolescent psychiatric practice in the view of medical consumers. Help seeking behaviour process after recognizing their children's problem, satisfaction with psychiatric service, and difficult problems during practice were evaluated, and variable factors affecting them were analysed. Methods : Through 10 multi-center point epidemiologic survey, 540 parents and their psychiatrists were involved in this study by structured questionnaire. Results : Above 70% of subjects reported positive response to psychiatric service. The barrier to psychiatric service were different by subjects' age. In children, Parents' inability to identify severity of children's problem and proper management place were major reason. However in adolescent, children's lack of desire to receive help and parents' worry about stigma related to receiving help were major barrier to psychiatric service. Conclusion : These findings suggest the importance of interagency collaboration and education services. Researchers and policymakers should consider strategies to reduce barrier related to perceptions of mental health problems and services, especially in adolescents.
성제중,서동만,신용훈,엄태건,서동섭 한국비파괴검사학회 2003 학술대회 논문집 Vol.- No.1
Ferromagnetic material like the steel tubes can easily distort eddy current testing signal due to increased magnetic permeability for defects. Because magnetic field of the test probe is affected in an inconsistent way when the material under the testing has permeability. This permeability effect can be reduced by magnetic saturation. In this paper eddy current testing system was developed to detect flaws on the steel tubes. Magnetic saturation probe with helmholtz coil was designed for saturation and inspection of the steel tubes. When using the designed test probe, the relationship between flaw signals and noises was obviously discriminated. Additionally, a high pass filter was included in the eddy current board to minimize noises due to DC magnetic field.
서동상,권무식 成均館大學校 科學技術硏究所 1992 論文集 Vol.43 No.1
Murine embryonal carcinoma cells (F9, 22) were differentiated by the treatment of retinoic acid(5 x10 exp (-6)M/1) for 72 hours. The differentiated cells were fixed with 2% glutaraldehyde plus 2% formaldehyde in PBS for 5 min at 4℃, and were reacted with TROMA I(monoclonal antibody of Endo A), followed by FITC-conjugated sheep anti-mouse antibody for immunofluorescent staining of Endo A. It was observed that not all the differentiated cells were fluoresced, and that the degree of the staining intensity was various among the fluoresced cells. These results could indicate that the expression of Endo A filaments in the differentiated F9 cells by the treatment of retinoic acid, is supposed to be heterogeneous.
全北地域의 人口의 長期 豫測 : A modle of Chonbuk
徐東均,朴正根 全北大學校 1990 論文集 Vol.32 No.-
In this paper the population of Chonbuk province is projected by the survival method. The population projection is the essential factor to establish the long-run developing plan for regional economy. The accuracy of the estimated population is required to accomplish the developing plan efficiently. The estimated population (1990-2001) will be 2,172,015(1990),2,169,948(1995) and 2,247,593(2001) respectively. In the characteristics of population structure, the portions of the young age(0―14) and the old age(60―) to the total population will be over 23% and 13% in 2001. The population structure of Chonbuk will change to the types of the developed country step by step. When the decrease of the young age group and the increase of the old age group are anticipated, the welfare plan for the old age will be gradually required. The rapid decrease of Meon-level population results in the lack of labor forces in rural area. The counterplan to it should be considerated.