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The prediction of the tooth size in the mixed dentition for Korean
Moon, Sung-Hwan,Kim, Seong-Oh,Yu, Hyung-Seong,Choi, Byung-Jai,Choi, Hyung-Jun,Lee, Jae-Ho 大韓小兒齒科學會 2006 大韓小兒齒科學會誌 Vol.33 No.2
이번 연구의 목적은 혼합치열기 아동에서 미맹출된 견치와 소구치의 크기를 예측하는데 있어서 한국인에 맞는 방정식을 만들기 위함이다. 미맹출 치아의 크기를 예측하는 것은 혼합치열기 교정 진단과 치료계획 수립에 있어서 매우 중요하다. 미맹출된 견치와 소구치 크기를 예측하는 방법은 몇가지가 있지만 그중에서도 가장 흔하게 쓰이는 것이 모이어의 예측표와 다나카와 존스턴의 방정식이 있다. 하지만 그것들은 백인을 위해서 제작된 것이고 치아 크기는 인종에 따라서 다르다고 알려져 있다. 이번 연구에서는 치아크기를 측정하여 하악 영구 절치의 크기 합과 견치 및 소구치의 크기 합 사이의 상관관계를 구하고 회귀방정식을 이용해서 한국인에 맞는 예측표를 만들었다. 연세대학교 치과대학에 재학중인 178명의 한국 학생(남 108명, 여 70명, 평균연령 21.63)을 대상으로 실험하였다. 영구치의 근원심 폭경을 석고모형상에서 calipers를 이용해서 측정하였다. 성별간의 치아 크기는 차이가 있었다(p<0.05). Correlation coefficient는 0.57에서 0.64의 범위였고, standard errors of the estimates 는 여성에서 0.6으로써 남성보다 우수하였다. r^(2)값은 0.27에서 0.41의 범위를 나타내었다. Estimating the size of unerupted teeth is an essential aspect of orthodontic diagnosis and treatment planning in the mixed dentition. Several methods were introduced and used for the prediction. The most common methods among these would be Moyers probability chart and Tanaka and Johnston equations. These are currently used widely, but they were developed for Caucasians. Because there are clear racial differences in teeth size, the objectives of this study were to produce correlation coefficients between the combined mesiodistal widths of the permanent mandibular incisors and those of the canines and premolars for each quadrant, and prediction tables with regression equations, specifically for Korean. 178 young adults (70 women, 108 men, mean age 21.63 years) were selected from the College of Dentistry, Yonsei University, Seoul, Korea. The mesiodistal crown diameters of the permanent teeth were measured with calipers. Significant sexual dimorphism was found in tooth sizes. The correlation coefficients between the total mesiodistal width of the mandibular permanent incisors and those of the maxillary and mandibular canines and premolars were found to be between 0.52 and 0.64. The standard error of the estimatation was better (0.60) for women and the r^(2) values ranged from 0.27 to 0.41 for both sexes, Prediction tables were prepared for Korean. This study showed larger canine and premolar diameters than Tanaka and Johnston's and Moyers' studies which might be due to the racial differences. Further investigations with a larger sample size will be needed for more representative data on the Korean population.
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서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)
김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1
In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.
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明末 희곡의 출판과 유통 : 江南지역의 독서시장을 중심으로 On the case of the book-market in Jiangnan江南 area
文盛哉 韓國中國語文學會 2004 中國文學 Vol.41 No.-
本論文以明末江南地區讀書市場爲中心, 關於戱曲在讀書市場有着즘樣的意義, 其影響如何等間題進行了初步的考察. 經歷了嘉靖年間刻晝業方面劃時代性變化之後, 戱曲在明末江南讀書市場上備受歡迎. 當時市民讀者(需要者)旣具有一定的購買力量和讀字能力, 正需要一種能구滿足他們的文化趣味的, 旣新鮮又有趣的理想讀物. 與此同時, 對以創造商業利潤爲最大目的的書商(供給者)的來說, 戱曲出版上的盛況是通過他們以市民讀者爲主要對象的各式各樣的鎖수策略, 如揷圖·評點·音釋·點板,還有套印·花欄等才實現的. 這樣, 市民讀者和書商之間的互動, 不僅帶來了明末江南讀書市場戱曲出版·流行上的盛況, 還推動一系列以"市民"·"通俗"爲主要話題的戱曲談論, 發展了包括其創作·批評·理論·演出在內的整體戱曲文化.
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성영호,신문형,박재홍 龍仁大學校 1999 용인대학교 논문집 Vol.17 No.-
The purpose of this study was to examine the factors that influence voluntary tunovers among leaders who are employed in Leisure and sports. The factors were found to he external, job - related, and personal. A survey was administered to 218 leaders of the following organizations that studied at Yong - in University, to success a third class leader in Leisure and sports with man 151 persons and female 67 ant 1988. A questionaire was designed to establish the causal factors of Yang - Jin Hawn(1992), Park - Se Hong(1994), Jun - Chan yol(1994), Lee - Ki Hyo(1995) in leisure and sports. The questionnaire had a high index in the Cronbach'a = 6485 ~ 8911 test. These surveys were cpmpleted using self - administration method. First, to analyze the data for the study, the frequencies, t-test, one -way ANOVA was sued to analyze the collected data. The results of this study were as fellows : First, the external factors associated with voluntary turnovers had not a stronger impact on the sex, education, prestige, salary on the decision. Second, the joh - related factors associated with voluntary turnovers has net friedship satisvaction and productivity. Third, the personal factors associated with voluntary turovers has not a stronger impact on turnover rate than job' opportunity.
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殷載淳,崔東晟,全焄,安文生 又石大學校 1989 論文集 Vol.11 No.-
Glycyrrhizae radix, commonly called licorice, has been used as anti-ulcerous and anti-inflammatory agents. It's main component, glycyrrhizin, is known to be effective as an anti-allergenic, anti-hepatic, and anti-viral agent, and shows steroid-like action. Histamine mediates and modulates inflammation through a variety of immuno-regulatory actions and stress-induced secretion of glucocorticoids(GC) is generally mediated by release of ACTH from the pituitary gland. This study was to investigate the mechanism of Glycyrrhizae Radix Ext. on anti-inflammatory and anti-ulcerous action. 1. The serum histamine contents was the most increased at the dose of 25㎍/㎏ LPS. injected rats(i.p), and the serum corticosterone was not significant. 2. Pretreatment of Glycyrrhizae radix Ext. (150㎎/㎏) was markedly decreasing the levels of serum histamine and corticosterone. 3. The serum histamine content was significantly increased in 120 minutes after LPS. injection. 4. The serum histamine content was decreased by pretreatment of cimetidine (H^2- receptor antagonist) 5㎎/㎏. These results were suggested that the effects of Glycyrrhizae Radix Ext, on anti-inflammatory and anti-ulcerous action was induced by its glucocorticoid-like action and inhibition of the histamine realese via H_2-receptor.
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Cathode materials of Li ion battery
심영재,문성인,형유업,도칠훈,윤문수 국립경상대학교 공과대학 부설 첨단소재연구소 1994 尖端素材 Vol.4 No.-
Li ion 2차전지는 높은 전지전압, 낮은 자기방전율, High Energy Density High Power Density Non-Toxic, No Memory Effect등의 우수한 특성을 보유하고 있고, 환경적인 측면에서 Lead Acid 전지 및 Ni/Cd 전지 등과 같은 Pb, Cd 및 Hg 등으로 인한 환경오염문제가 없는 고성능 신형전지로써, 92년에 SONY사에서 최초의 시제품을 내놓은 이래 현재 소형녹음기, 캠코더 및 셀룰라폰용으로 시판되고 있으나 세계적으로 Li ion 전지를 생산할 수 있는 회사는 일본의 몇몇 기업으로 한정되어 있는 실정이다.
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