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이수현(Soo Hyun Yi),김아영(Ah Young Kim) 한국교육심리학회 2012 敎育心理硏究 Vol.26 No.4
본 연구의 목적은 학업과 전문성을 개발하는 과정에서 나타나는 완벽주의 성향을 측정하기 위하여 학업적 완벽주의 척도를 개발하고, 그 신뢰도와 타당도를 검증하는 것이다. 본 연구에서 개발된 척도는 학업상황으로 맥락을 구체화 시켜 학업과정 가운데 동기-수행-평가의 3단계에서 나타날 것이라 기대되는 6개의 하위요인으로 구성하였다. 척도의 타당성을 검증하기 위하여, 고등학생들로부터 수집한 예비검사 자료를 분석하여 총 31개 문항으로 구성된 본검사를 전국의 고등학생 567명을 대상으로 실시하여 문항과 척도의 양호도 분석을 실시하였다. 확인적 요인분석을 통하여 6개 하위요인으로 이루어진 모형의 적합도를 검증하였다. 본 연구를 통하여 밝혀진 학업적 완벽주의의 하위요인은 동기 단계에서 (1)자기-접근적 완벽주의, (2) 자기-회피적 완벽주의, (3) 타인-접근적 완벽주의, 수행 단계에서 (4) 완벽주의 자기조절, (5) 완벽주의 행동지연, 그리고 평가 단계에서 (6) 완벽주의 가혹평가이다. 마지막으로 학업적 완벽주의 척도의 하위요인과 심리적 건강, 학업동기, 성취수준 간의 상관 및 법칙론적 연결망 분석을 통하여 척도의 구인타당도와 준거-관련 타당도의 근거를 제시하였다. The purpose of this study was to construct and validate the Academic perfectionism Scale, specifically measuring the degree of perfectionism in an academic context. Based on reviews of previous studies on the conceptual essentials of perfectionism, and on validation of perfectionism scales, we came up with new sub-constructs to represent academic perfectionism. Responses from 391 high school students on the preliminary scale were analyzed, which resulted in 31 items representing six sub-factors. The final six-factor scale, along with the scales of psychological well-being, academic motivation, and performance achievement were administered to 567 high school students to confirm the reliability, construct validity, and criterion-related validity of the newly assembled Academic Perfectionism Scale. Results from a confirmatory factor analysis showed that the model with six factors had reasonably acceptable goodness of fit. The six factors were categorized into three phases in academic context: motivation, performance, evaluation, The motivation phase consisted of (1) self-approaching perfectionism, (2) self-avoided perfectionism, and (3) other-oriented perfectionism; the performance phase consisted of (4) perfectionistic self-regulation, and (5) perfectionistic procrastination; the evaluation phase consisted of (6) perfectionistic harsh evaluation. The relations among the sub-factors of the Academic Perfectionism Scale and the external variables such as psychological well-being, academic motivation, and performance achievement were consistent with the results of previous studies. Specifically, self-self-approaching perfectionism, self-avoided perfectionism, and perfectionistic regulation positively were positively related to life satisfaction, failure-tolerance, and achievement, whereas other-oriented perfectionism, perfectionistic procrastination, and perfectionistic harsh evaluation were positively related to depression and negatively related to academic motivation. A structural equation model analysis, testing for a nomological network, provided additional evidence for the validity of the present scale. Practical applications of dealing with maladaptive thoughts and behaviors in an academic context, including gifted education, were discussed.
우용구,이수화,이철현,이오수,김봉환,Woo, Yong-Ku,Lee, Su-Hwa,Yi, Chul-Hyun,Lee, O-Soo,Kim, Bong-Hwan 대한수의학회 2003 大韓獸醫學會誌 Vol.43 No.1
Pullorum disease due to Salmonella enterica subspecies enterica bioserovar Pullorum (S. pullorum) is reported to be an endemic disease in domestic poultry flocks. The pulsed-field gel electrophoresis (PFGE) subtyping method was used to assess the extent of genetic diversity and clonality of most of salmonella serotypes and other diverse bacterial species from animals and environmental samples in worldwide. Nowadays, PFGE has already been evaluated as a gold standards for molecular subtyping of salmonella serotypes compared with other molecular analysis methods. PFGE of XbaI digested chromosomal DNA from 23 strains of S. pullorum gave 5 distinctive pulsotypes (from SXPI to SXPV) with 5% confidence range of Dice coefficients, indicating that PFGE is very discriminative and that multiple clones of S. pullorum have been existed and diffused all of domestic poultry flocks industries since 1995. Two dominant pulsogroups (SXA & SXB) appeared as a major clones in this country, because they had consistently been recovered from diverse sources including both chicken organs and raw feed materials between 1995 and 1998. In addition, the matching percentage of PFGE profiles (PFP) among strains from both chickens and feed ingredients provides indirect evidence of the possible transmission of pullorum disease from contaminated raw feed ingredients for chicken production. In calculating of discrimination index (DI) for PFGE method by Simpson's index, DI was appeared as 0.917. Therefore, this index suggested that the present PFGE would seem to be a desirable and confident molecular typing method for S. pullorum strains. To our knowledge for pullorum disease, this is the first study to compare S. pullorum strains from chicken organs and feed samples using the PFGE.
말초 신경 신호 기록의 효율성 개선을 위한 전도성 폴리머가 적용된 생체삽입형 커프형 신경전극
박성진 ( Sung Jin Park ),이이재 ( Yi Jae Lee ),윤광석 ( Kwang Seok Yun ),강지윤 ( Ji Yoon Kang ),이수현 ( Soo Hyun Lee ) 한국센서학회 2015 센서학회지 Vol.24 No.1
This study demonstrates a polyimide nerve cuff electrode with a conductive polymer for improving recording signal quality at peripheral nerve. The nerve cuff electrodes with platinum (Pt), iridium oxide (IrOx), and poly(3,4-ethylenedioxythiophene): p-toluene sulfonate (PEDOT:pTS) were fabricated and investigated their electrical characteristics for improving recorded nerve signal quality. The fabricated nerve cuff electrodes with Pt, IrOx, and PEDOT:pTS were characterized their impedance and CDC by using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry. The impedance of PEDOT:pTS measured at 1 kHz was 257Ω, which was extremely lower than the value of the nerve cuff electrodes with IrOx (15897Ω) and Pt (952Ω), respectively. Furthermore, the charge delivery capacity (CDC) of the nerve cuff electrode with PEDOT:pTS was dramatically increased to 62 times than the nerve cuff electrode with IrOx. In ex-vivo test using extracted sciatic nerve of spaque-dawley rat (SD rat), the PEDOT:pTS group exhibited higher signal- to-interference ratio than IrOx group. These results indicated that the nerve cuff electrode with PEDOT:pTS is promising for effective implantable nerve signal recording.
PCR을 이용한 국내 및 수입 축산물 유래 Listeria monocytogenes의 유전학적 분석연구
우용구,이수화,이철현,최정수,류재두,김영일,이오수,김봉환 한국수의공중보건학회 2003 예방수의학회지 Vol.27 No.2
One hundred-fifty two of Listeria strains were isolated from domestic chicken carcasses, a slaughter-houses from nationwide from 1996 to 1997 and imported livestock products from a ten foreign countries including the USA, China, France and Thailand. To substitute the laborious and time consuming procedures of clinical laboratory standard diagnostic methods, the rapid and specific multiplex PCR(M-PCR), which was designed to amplify a three kinds of genes simultaneously f3r specific detection and differentiation of L. monocytogenes(LM) by one step procedure, was established. The LM strains confirmed with M-PCR were analysed to their genetic diversities by RAPD using the two primers(D87 & MMTl), and also evaluated on their discriminatory abilities(na) between two primers. our study also conducted the REP-PCR and ERIC-PCR for evaluation of the possibility of REP and ERIC elements for genetic subtyping of LM strains. According to the REP-PCR and ERIC-PCR fingerprinting patterns, LM strains were divided into 7(ERIC-type) and 4(REP-type) major clusters at the relative clone cut off value of 80%. According to the computer analysis of PCR results using the GelCompar Ⅱ software, ERIC-PCR(DI=0.955) had expressed the most high discriminatory ability and followed by REP-PCR(DI=0.952), RAPD(D87; 0.954, MMT1; 0.937), in order. The combined analysis of the present PCR results was also expressed the reliable and useful discriminatory ability(DI=0.916). This study suggested that PCR based methods could be used as an reliable, reproducible, rapid, and highly discriminatory method for the genetic differentiation of genus Listeria.