The research on washback of a test has little been carried out in Korea while it has been flourishing in language testing researchers overseas. This paper investigates whether the advent of NEAT has affected the perception of test takers and the teaching/learning practices in English classrooms of Korea. In addition, we also want to investigate the relationship between variables such as perception of test users, teaching/learning practices, and test scores. We carried out a survey with 601 students who were seated at NEAT administered in April 2013 as well as 3,267 third-year high school students who had no experience on NEAT. The analyses revealed some evidence to support that NEAT has an effect on the perception of the participants. However, the analyses also revealed that NEAT was not effective to appeal for a change in teaching and learning practices in English classrooms in Korea.

물벼룩 급성 독성 평가를 위한 비타민A 강화벼의 분자생물학적 특성을 분석한 결과, Southern blot에서 베타-카로틴 생합성을 위한 Psy와 CrtI 유전자들이 one-copy로 도입됨을 확인하였으며, 선발마커인 Bar 유전자의 단백질 검출 immunostrip 분석에서도 비타민A 강화벼에서만 검출되었다. 비타민A 강화벼의 목적하는 최종 산물인 베타-카로틴 함량도 낙동벼에 비해 8.9배 증가됨을 확인하였다. 비타민A 강화벼와 낙동벼의 농업환경 생물지표종인 물벼룩(Daphniamagna)에 대한 급성독성시험을 실시한 결과, 비타민A 강화벼의 48시간-EC50은 3,311.40 mg/L(95% 신뢰한계 : 2,901.39 ~ 3,779.23 mg/L), 무영 향농도(NOEC)는 1,800 mg/L였고, 낙동벼는 48시간-EC50은 3,655.23 mg/L(95% 신뢰한계 : 3,156.71 ~ 4,232.86 mg/L), 무영향농도는 1,800 mg/L였다. 따라서 Psy와 CrtI 유전자가 형질전환된 비타민A 강화벼 및 낙동벼가 환경 지표생물종인 물벼룩에 미치는 영향 평가 결과 상대적 동등성을 보였으며, 이는 Psy와 CrtI 유전자의 단백질 노출이 물벼룩에 부정적인 영향을 미치지 않은 것으로 판단된다.

MDABM and MDAEW, as a accelerating weight loss agents, were prepared by adding water to myristyldimethylbenzylammonium bromide(MDAB) and myristyldimethylethylammonium ethyl sulfate (MDAE) synthesized. As a result of weight loss finishing of the MDABW and MDAEW with NaOH on PET fiber, the ratio of weight loss of MDABW was very larger than that of MDAEW. This result showed that quaternary ammonium bromide had higher weight loss effect than quaternary ammonium sulfate, and the ratio of weight loss was greatly varied with the kind of quaternary ammonium salts used. In these conditions, proper treatment concentration, treatment time, and treatment bath ratio were about 8g/l, 6O~90min, and 40:1~50:1, respectively.