Periapical multilocular osteoporotic bone marrow defect

Jung, Yun-Hoa,Cho, Bong-Hae,Nah, Kyung-Soo 대한구강악안면방사선학회 2005 Imaging Science in Dentistry Vol.35 No.4

A case of osteoporotic bone marrow defect, which appeared as a well-defined multilocular radiolucency overlapping the roots of mandibular right second molar, was reported. On periapical radiograph, a daughter cyst-like radiolucency was seen at the anterior margin of the lesion making it difficult to rule out odontogenic keratocyst.

중·고등학교 체육 교과서의 활용성

윤해철,조성호 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.20 No.1

The purpose of this study is to investigate whether the text book is used effectively in the practical physical education and, if not, to reveal the reason and find the direction and remedy to reform the school physical education curriculum. The subjects of this survey were 182 of teachers and 1,671 of students and the results were analyzed by using SAS package program. The main results obtained can be summarized as following: First, although students are interested in the class of physical education, there is no variety in the class of both theory and practice. Second, the text book is unsystematically used in the class of the physical education theory. Although students recognized the text book to be used in the class, the contents of the text book did not satisfy students. From the result of this study, we can find that teachers and students relatively want to use the text book in the class of physical education. However, there are many problems in the contents and the practicability of the text book is very low.

자궁근종에서 Phospholipase C 동종효소들의 발현에 관한 연구

윤혜원,류임주,김창미,심재철,서영석 대한해부학회 1995 Anatomy & Cell Biology Vol.28 No.4

팥 신장기 과습처리에 의한 생육특성 및 단백질 발현

정해룡, 유장환, 윤성현, 권수정, 우선희 충북대학교 농업과학기술연구소 2022 農業科學硏究 Vol.38 No.2

Adzuki bean is sensitive to waterlogging stress. The overall study on the waterlogging stress is limited comparing to the study on the drought and any environmental stress. Therefore, the present study was conducted to investigate the changes in growth characteristics and the expression patterns of proteins at the 5-leaf stage periods of adzuki bean. The domestic cultivar, Arari (Miryang No. 8) was used to test the waterlogging stress. In the waterlogging treatment for 3 days, the plant height showed slightly decrease in the treatment at 3 days of waterlogging, but root fresh weight showed significantly changes at 3 days of the waterlogging treatment. Chlorophyll contents showed also significantly different at 3 days of waterlogging treatment compared to control the plants. The waterlogging stress gradually influenced the growth differences between the control and the treatment respectively. More than 350 pro- tein spots were identified on 2-D gels using an image analysis. Moreover, a total of 28 proteins were analyzed using LTQ-FT-ICR MS. Among these 28 proteins, a total of 18 proteins were up-regulated, and 10 proteins were down-regulated under waterlogging treatment. According to biological process, the most of the proteins were found to be involved in carbohydrate metabolism. Regarding the subcellular local- ization, most of the proteins were localized into chloroplasts in 5-leaf stage.

경상북도 영덕 방언의 특징

윤지희,김해정 동국대학교 국어교육과 2000 동국어문학 Vol.12 No.-

鐵道騷音의 豫測技法에 關한 硏究

윤해동,황원택,김재수 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1

With rapidly industrial development, a railway has become of a main traffic means. But, the railway noise has caused much annoyance for the residents living nearby railway tracks. The result has been indiscreet installation of soundproof walls. But, even after soundproof walls were installed, the residents in the area would complain about the railway noise. In this study. The characteristics of Propagation and Attenuation of railway noise were compared among regions where the Honam Line travels. For this focus, the characteristics of sound field distribution of the soundproof walls in the area were investigated, and the results were supposed to serve as a basic data for effective and rational noise prevention measures.

일측성 질폐쇄 및 동측 신장 무발생을 동반한 중복자궁 2예

윤일영,여소진,김형문,김정식,김태희,이해혁,남계현,이권해,김준모,김민의 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2

Uterus didelphys with unilateral obstructed hemivagina and ipsilateral renal agenesis usually presents after menarch with progressive abdominal pain during menses secondary to hematocolpos, and indeed a very rare congenital anomaly due to Mullerian duct malformation. An accurate and prompt diagnosis is of importance to permit treatment and to assure the future fertility of the patient. Pelvic ultrasound, physical examination and pelvic MRI established a diagnosis of hematometracolpos secondary to uterus didelphys with unilateral imperforate hemivagina. An incision in the vaginal septum allowed drainage of the hematocolpos, providing relief of the patients symptoms. We report two case of uterus didelphys with obstructed hemivagina with brief review of the literature.

자동차 허브 내·외경 측정 시스템 개발

윤규택,이동주,최만용,박해원,박정학 한국공작기계학회 2002 한국공작기계학회 춘계학술대회논문집 Vol.2002 No.-

An automobile hub is composed of a hollow cylindrical part with inner and outer diameters. These hub diameters must be precise, as any irregularities in them (diameters) can influence/degrade the motion of an automobile with this problem. Highly accurate and reliable hub inner and outer diameters measurement systems are therefore required for inspection of the diameters. In this research, an automobile hub inner and outer diameters measurement system has been developed and tested. The system consists of measuring heads with LVDT sensors, and associated software for automatic measurement and calibration of the diameters and the sensors respectively. The system has been evaluated in comparison with an existing measurement system, and the following outcomes have been achieved; ·Improved and guaranteed quality and reliability ·Increased productivity and cost reduction These results prove the system developed in this research to be suitable for automobile hub inspection.

6-(3,4-디클로로페닐)아미노-7-클로로-5,8-퀴놀린디온의 항진균작용 및 안전성 평가

윤여표,김동현,이병무,허문영,정해문,강혜영,최정아,김도희,유충규 성균관대학교 약학연구소 1998 成均藥硏論文集 Vol.10 No.1

6-(3.4-Dichlorophenyl)amino-7-chloro-5.8-quinolinedione (RCK50) was tested for antifungal activities in mice systemically infected with Candida albicans. The therapeutic potential of RCK50 was also assessed in comparison with ketoconazole. RCK50 had ED_50 0.22±0.01 ㎎/㎏. Ketoconazole as a positive control had ED_50 6.00±1.70 ㎎/㎏. Intraperitoneally administered RCK50 at the ED_50 for 7 days and 14 days reduced Candida albicans colony count in the kidneys and liver. And administered RCK50 at the ED_50 for 14 days improved survival rates. The genotoxicities of RCK50 had been evaluated. RCK50 was negative in Ames test with Salmonella typhimurium and chromosomal aberration test in CHL cells. RCK50 did not show any clastogenic effect in mouse peripheral blood and was negative in mouse micronucleus assay. These results indicate that RCK50 has no genotoxic potential under these experimental conditions. Acute oral toxicity studies of RCK50 were carried out in ICR mice of both sexes. RCK50 did not show acute oral toxicities and LD_50 values were over 2.850 ㎎/㎏ in ICR mice.

鉛中毒의 補償效果에 관한 硏究

尹惠禎,金順愛 梨花女子大學校 韓國生活科學硏究院 1976 韓國生活科學硏究院 論叢 Vol.17 No.-

鉛이 體內로 吸入되면 δ-amino levulinic acid dehydratase에 作用해 이를 沮害하므로 Heme合成의 體內代識中間物質인 δ-amino levulinic acidrk 蓄積하게 되어 尿中으로 排泄된다. Rimington은 鉛이 貧血의 原因이 된다는 것을 報告하였고 Vergnano, Eartasegna, and Bonsignore는 家兎에 鉛投與 30分後에 glutathione의 25%가 減少함을 보고 하였다. Gontea는 鉛投與로 Vitamin C의 含量이 減少된다고 했다. 또한 山口, 西澤, 祐田과 山本은 鉛中毒時 Nacitrate와 Na_2-EDTA 投與로 低下된 alkali phosphatase活性이 增加함을 報告했다. 그래서 本 實驗은 補償劑로써 貧血治療에 널리 쓰이는 folic acid, 生體代識와 密接한 關係가 있는 vitancin C, ALAD活性을 增加시키는 methionine과 glutathione, amino acid로써 중요한 glutamic acid, 重金屬의 拮抗劑로 Na_2-EDTA와 Na-citrate을 澤해 尿中 δ-ALA의 排泄量을 Wada에 依한 方法으로 調査하였다. 그 結果 鉛重毒이 重症일때는 補償劑 投與군은 모두 鉛만 投與한 군 보다 尿中 ALA量이 減少했다. folic acid, Na-citrate, Na_2-EDTA 投與군은 大體的으로 尿中 ALA排泄量의 抑制效果가 크고 長期에 걸쳐 效果가 있었다. 特히 Na-Citrate와 Na_2-EDTA倂用時는 正棠値로 유지 시킬수 있었다. Vitamin C와 methionine投與군은 補償效果는 있었으나 上記보다 弱하고 期間이 짧았다. 그리고 glutathione과 glutamic acid投與군은 初期는 剌戟되어 상당히 尿中 ALA排泄量이 많으나 3日後부터는 減少하여 補償效果를 나타냈다. The contents of δ-amino levulinic acid (ALA) in uring were determined by the experiments to the rats whidh were given 20mg lead/150g, and the detoxication agents were administered intraperitoneally to the rats. The detoxicating agr\ents were folic acid, vitamin C, methionine, gluatahione, glutamic acid, sodium citrate and ethylene diamine tetra acetic acid disodium. δ-ALA concents in urine were measured by wasa's method. δ-ALA contents inurine increased by administration of lead were decreased remarkably by the injection of folic acid, Na-citrate and Na_2-EDTA. By the injection of sodium citrate and Na_2-EDTA of lead poisoning rats, δ-ALA contents in urine were reduced to the range of normal level. In the group of the ratsadministered glutathione or glutamic acid, δ-ALA contents in urine increased in 2-3 days, and were decreased after 3day.