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치환 알릴 페닐 에테르의 자리옮김 반응 : 란타나이드 계열 루이스산 촉매에 의한 디메틸크로만의 합성
이남기 충북대학교 과학교육연구소 1999 과학교육연구논총 Vol.15 No.1
A novel method for the synthesis of 2,2-dimethylchromans was introduced. The current method utilizes ortho-allyl phenyl ether as the starting material and Eu(hfc)₃ as the Lewis acid. Under mild condition, the current method provides the 2,2-dimethylchromans in high yield. The reaction is considered to proceed via ortho-allyl phenol as an intermediate. The intermediate was successfully isolated under milder condition, thereby supporting the proposed mechanism.
이남기,김동옥,최보람,Lee, Nam-Gi,Kim, Dong-Ok,Choi, Bo-Ram 한국응급구조학회 2017 한국응급구조학회지 Vol.21 No.2
Purpose: The purpose of this study is to investigate the first aid knowledge and education requirements of physical therapists in a clinical setting. Methods: A self-reported questionnaire was distributed to 280 physical therapists in Daejeon, Gwangju, and Seoul from July to December, 2016. Using only completed questionnaires, 201 responses were analyzed using IBM SPSS 23.0 program. Results: In the first aid knowledge, time to resuscitate heart after cardiac arrest and sprain had 91.0% and 99.0%, respectively, whereas partial respiratory obstruction and diabetes mellitus had 25.4% and 18.9%, respectively. The subjects working at advanced general hospitals(62.17) had significantly higher scores that those at general hospitals(53.82). The subjects who experienced first aid education(59.16) had significantly higher points that those without first aid education(53.24). Regarding their requirements of first aid education, 64.0% replied that they wanted to learn cardiopulmonary resuscitation and automated external defibrillator, poisoning, burn, and frostbite were low educational requirements. Conclusion: It is necessary to provide repeated first aid training that helps physical therapists in the field have sufficient first aid knowledge and increase that knowledge over time.