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홍영숙,성낙응,경난호,이순남 梨花女子大學校 醫科大學 醫科學硏究所 1984 EMJ (Ewha medical journal) Vol.7 No.3
Lipoprotein cholesterol and triglyceride levels have been determined innormal and diabetes. The abnormalities of lipoprotein were investigated by SDS-polyacrylamide gel electrophoresis in the serum and the 3 major lipoprotein classes for diabetes. HDL cholesterol levels were lower in the diabetes compared to the normals. VLDL triglyceride levels also elevated in the diabetes. There were significant shifts in the distribution of lipoprotein cholesterol, with an increase in LDL cholesterol and decrease in HDL cholesterol. The results of this study suggest that diabetes may be associated with changes in both lipoprotein triglyceride and cholesterol levels. The electrohoretic patterns of VLDL and HDL in diabetes showed the abnorm-al pattern in comparison to normal.
은난순,홍형옥 대한건축학회 2003 대한건축학회논문집 Vol.19 No.12
The aim of this study was to make an evaluation tool for multi-family housing management with discussion of managerial situation of multi-family housing for sale (so called condominium) in Korea. The theoretical framework that was derived from social constructionism was used. Housing managers' and residents' opinions were reflected in evaluation tool to make a clear distinction from existing tools. The parts of evaluation tool were composed of maintenance, operating management, residential life management. Differences from existing tools, ‘Evaluation Tool for Multi-family Housing Management(ETMHM)’ got contents validity and objectivity through selecting items from the research results about managers, residents and professionals. To identify the level of evaluation, Likert summated scale(5 point) was used.
Formocresol에 의한 치조골 괴사의 치험례 : CASE REPORT
박철홍,이난영,,이창섭,이상호 大韓小兒齒科學會 2005 大韓小兒齒科學會誌 Vol.32 No.4
유치의 치수절단술에 사용되는 약제로는 formocresol, ferric sulfate, 수산화칼슘 등이 있다. 그 중에서 formocresol은 치수조직의 고정능력과 높은 임상적 성공을 보임으로써 아직까지 널리 사용되고 있으나 자체독성이 매우 강하여 영구 계승치 치배의 변위나 결손, 법랑질 형성부전, 전신 흡수로 인한 돌연변이 가능성과 암유발 가능성 역시 보고되고 있다. 최근에는 formocresol의 근관내 적용시 불완전한 임시충전에 의한 미세누출로 주위 치은과 치조골의 괴사를 야기한 보고가 있으며, 과잉의 formocresol을 적용하였을 경우에도 치조골의 괴사의 원인이 될 수 있다고 하였다. 본 증례는 개인치과에서 formocresol을 이용한 치수치료를 받은 후 지속되는 동통으로 인해 상악 좌측 제 2유구치를 발거하였으나. 증상이 개선되지 않아 본원에 의뢰되었다. 환아는 8세 남아로 심한 구취 및 계승 영구치 치관 주위로 환형의 치조골 괴사를 보여 부골절제술을 시행하고 1년 7개월간 관찰을 하였을 때. 정상적인 치근 성장은 이루어졌으나 결손된 치조골 및 부착치은의 완전한 조직재생 소견은 관찰되지 않았다. Formocresol에 의한 치주조직에 대한 부작용은 비가역적이므로 formocresol의 사용에 있어 적응증 여부를 잘 판단해야하며, 철저한 임시 가봉에 주의를 기울여야 할 것이다. Various chemotherapeutic agents have been recommended for pulpotomy of primary teeth, and there are formocresol, ferric sulfate, and calcium hydroxide. Of those, formocresol has fixation effect of pulp tissue and high clinical success rate, so it is most commonly used agent. But formocresol has strong cytotoxic effects, thus many articles reported displacement and loss of permanent successor, amelogenesis imperfecta, mutation by general absorption, possibility of cancer induction. Recently, it has been reported that leakage by imperfect temporary sealing when FC-soaked cotton was inserted into the root canal caused necrosis of surrounding tissues, and that necrosis of alveloar bone related to the use of excessive formocresol. In this case, 2nd primary molar of upper left jaw was treated using formocresol in local clinic, but extracted because of lasting pain, Furthermore, symptoms didn't disappear, so patient was refered to us. The patient was 8-year-old male, had foul oder from oral cavity and circular alveolar bone necrosis around the permanent successor crown. Thus sequestrectomy was operated and observed through 19 months after operation, we found normal root development of permanent successor but no complete regeneration of alveolar bone defect and attached gingiva. Lesion of periodontal tissues by formocresol is irrelversible, so we have to confirm the indication in using formocresol and pay attention to complete temporary sealing.
모래의 입도분포가 모르터의 물성에 미치는 영향에 관한 연구
김경원,김문희,김유진,안흥난,허태경,현철 경성대학교 공학기술연구소 2010 공학기술연구지 Vol.16 No.-
Fineness Modulus is a term used as an index to the fineness of sand. It is well - known that the modulus distribution of sand plays an important role in achieving the desired properties of mortar. The maximum size of sand is also important parameter in mortar. These parameters affect workability, strength and unitweight of mortar. In tills study, different sand gradings were used to investigate effects of fineness moduli of sand for examination about the workability, strength and unit weight characteristics of cement mortar. Two kinds of sands with various size distribution and three kinds of fine aggregates with the similar particle size distribution (Sieve No.16~30, No.30~50, No.50~100) were used. Water-cement ratio (W/C) of mortar mix was kept constant for all the trial mixes with sand of different fineness modulus. Major findings of tills study are: (a) Fine sand with the similar size distribution reduces the workability and unit weight of cement mortar. (b) The compressive strength of mortar is not sensitive to sand grading variations. (c) The compressive strengths at the age of 28 days range from 32.1 to 54.1 MPa. (d) The sand with standard modulus distribution has better positive effects on the properties of the mortar.