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Chen Hui,You, Seok-Hoon 고려대학교 언어정보연구소 2018 언어정보 Vol.26 No.-
Chen Hui & You, Seok-Hoon. 2018. Korean Learner’s L2 Performance in Syntax-Semantics interface: Chinese Wh-words as Existential Polarity Words. Language Information. Volume 26. 103-128. This study aims to test applicability of the Interface Hypothesis (Sorace & Tsimpli, 2006) in L2 through investigating L2 acquisition of Chinese Wh-Words as Existential Polarity Words (hence force EPWs) by L1 Korean speakers. The present study compares the results of the acceptability judgment test of Chinese EPWs between learner group and native speaker group to investigate 1. Are the interface properties concerning Chinese EPWs and their licensors acquirable by Korea-speaking learners of Chinese? 2. If not, what are the linguistic or non-linguistic effects which cause the interface breakdown? The results show that L2 Chinese learners are unable to establish a complete semantics-syntax relationship with the EPW embedded in the sentence, even at the final state of L2 acquisition. And the results also show that L2 Chinese acquisition is not linear development.
노인 인구에서 신경인지기능저하와 혈청 지질농도와의 상관성
유영선,최석주,정성수,김지은,윤성욱,전동욱,백준형,박성우,이정구,추일한,김영훈 大韓神經精神醫學會 2008 신경정신의학 Vol.47 No.6
Objectives : In this study, the authors evaluated the correlation between eurocognitive impairments and serum lipids levels among Korean elderly over the age of 65. Methods : A total of 609 elderly individuals participated in this study. Screening for cognitive impairments were carried out using the Mini-Mental Status Examination-Korean version (MMSE-KC). There were 197 subjects above 1.5SD Of MMSE- KC and they were evaluated using the Korean versions of the Consortium to Establish a Registry for Alzheimer's Disease (AD) (CERAD-KC) and Geriatric Depression Scale (GDS-K). Results : There was a correlation between old age/low levels of education and AD (p<0.05, P<0.01). There was an inverse correlation between the serum level of total cholesterol and the word list recognition test scores. The serum levels of LDL cholesterol were inversely correlated with the scores on the constructional praxis test, word list recall test and word list recognition test. Inverse correlations between the serum level of triglyceride and scores on the word list recall test and word list recognition test were also observed. Conclusion : There were inverse correlations between the serum levels of lipids and language/memory function in subjects with AD.
타액 오염하에서 수복방법에 따른 컴포머의 미세누출에 관한 연구
공석배,김종수,유승훈 대한소아치과학회 2007 大韓小兒齒科學會誌 Vol.34 No.1
소아 환자의 인접면 우식을 치료할 때 컴포머는 불소를 방출하는 재료로 유용하게 사용될 수 있다. 하지만 구강내 환경은 항상 습윤한 상태로 타액은 컴포머와 치질 사이의 접착을 방해할 수 있다. 수복시에 타액이 게재하게 되면 미세누출이 발생할 가능성이 높아지게 되며 그로 인해서 수복의 실패가 일어날 수 있다. 이에 본 연구에서는 컴포머를 수복할 시에 타액의 영향과 수복 방법에 따른 미세누출 정도를 평가하기 위해서 시행하였다. 컴포머로서 Dyract AP^(®)(Dentsply. Germany)를 사용하였으며 Dentin bonding agent로는 Prime and Bond^(®) NT (Dentsply, Germany)를 사용하였고. 광중합을 위해서 Elipar Trilight (3M ESPE, USA)를 사용하였다. 구강내 환경을 재현하기 위해서 saliva pool을 제작하였다. 소구치 2개를 인접하여 시편을 제작한 후에 2급 와동을 형성하여 수복 환경을 다르게 하여 컴포머를 충전한 후에 500회 thermocycling하였다. 그 후 0.5% methylene blue용액에 24 시간 동안 담근 후에 실체 현미경을 통해서 교합면과 치은면에서의 미세누출 정도를 측정하였다. Kruskal-Wallis Test와 Mann-Whitney Test를 이용하여 각 군간 유의성을 검정하여 다음과 같은 결과를 얻었다. 1. 교합면에서의 각 군간 통계학적 차이는 없었다(p>0.05). 2. 치은면에서 Oraseal^(®)을 이용하여 수복한 3군이 타액 오염을 시키지 않은 4군과 통계학적 차이가 없었다(p>0.05). 3. 치은면에서 1군과 2군 사이에는 통계학적 차이가 없었다(p>0.05). 4. 치은면에서 Oraseal^(®)을 이용하여 수복한 3군이 1,2군보다 통계학적으로 더 낮은 미세누출 정도를 보였다(p<0.05). Compomer that release fluoride could be used on proximal caries of child effectively. But oral cavity is always wet, so saliva inhibits bonding of tooth and compomer. When the saliva exist on bonding, it can be occured microleakages. The purpose of this study was to evaluate the influence of salivary contamination on compomer restoration and degree of microleakage according to restoration methods. Dyract AP^(®) and prime and bond^(®) NT was applied by the manufacture s instructions. Elipar Trilight was applied for light curing. Saliva pool was made for reconstruction of oral cavity. Two premolar was embedded in acrylic resin. After class II cavity preperation, Dyract AP^(®) was restored under several condition, the specimen was thermocycled 500 times with 30 second dwell time. 0.5% methylene blue was used for microleakage test. Micoleakage was measured by the ratio of the infiltration length to occlusal and gingival side interface. Data were analyzed statistically using Kruskal Wallis Test, Mann-Whitney Test. The Result were as follows; 1. In occlusal side, there were no statistical differences. 2. In gingival side, there were no statistical differences in Group III(ContactMatrix^(TM), Rubber dam, Oraseal^(®), Group IV (No saliva contamination). 3. In gingival side, there were no statistical differences in Group I(ContactMatrix^(TM)), II(ContactMatrix^(TM), Rubber dam). 4. In gingival side, there were statistical differences in Group I(ContactMatrix^(TM)), II(ContactMatrix^(TM), Rubber dam).
김태균,김영유,서영석,조창호,나훈균 公州大學校 基礎科學硏究所 1998 自然科學硏究 Vol.7 No.-
양극반응 전류밀도를 변화시키면서 다공질 규소를 제작하여 라만산란을 관측하였다. 전류밀도가 증가함에 따라 라만신호는 520.5㎝-₁에서 멀어졌으며, 봉우리의 반치폭이 증가하였다. 또한 전류밀도 증가에 따라 원통형 다공질 결정의 직경은 감소함이 계산되었으며, 길이가 길어짐을 AFM으로 관찰하였다. The Raman scattering was studied from the porous silicons which were made by changing anodization current. As the current density was increased, it was observed that Raman was gradually far from the value of 520.5 cm ̄¹and the full width half maximum increased. The decrease of radius of cylindrical porous crystal was calculated and the increase of its length was investigated through AFM.