http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
홍지은(Hong, Ji-Eun),김지영(Kim, Chi-Young),이병찬(Lee, Byung-Chan) 한국체육과학회 2015 한국체육과학회지 Vol.24 No.1
This study aims to compare the leisure type and smoking attitude among college students to provide the fundamental data for developing smoking Cessation programmes. To achieve the goal, 200 samples were collected from Seoul, Kyiinggi Do, KyungSang Do, ChungChung Do. SPSS 15.0 were used to analyze the data with frequency analiysis, exploratory factor analysis, stochastic confidence test, one-way ANOVA analysis. The results are as follows; First, for continued non-smoking, more participation to leisure activity is needed, therefore offering a variety of leisure and active promotion of the programme is important. second, longer leisure participation showed a positive attitude toward non-smoking. Thus, the expansion of students’ leisure time is needed. Third, smoking attitude showed differently by types of living arragment. When provide the smoking cessation programme, consider living arrangement type and appropriate leisure programme is needed.
감마선 처리가 인삼 종자의 개갑, 발달, 생존 및 생육에 미치는 영향
이정우(Jung-Woo Lee),조익현(Ick-Hyun Jo),홍지은(Chi-Eun Hong),방경환(Kyong-Hwan Bang),김장욱(Jang-Uk Kim) 한국육종학회 2020 한국육종학회지 Vol.52 No.1
Ginseng (Panax ginseng) is a self-fertilized crop, and all ginseng cultivars developed until now have been bred by pure-line selection. Ginseng has few genetic variations and lacks diversity in genetic resources. To obtain genetic resources with useful traits, mutations must be artificially induced. In this study, indehiscent seeds from ginseng landrace were treated with 20 to 400 Gy of gamma rays for 24 hours to determine the optimal dose for mutation breeding. Results showed no significant differences in seed dehiscence rates among the 0 Gy (control) to 80 Gy groups. However, above 100 Gy, the dehiscence rate sharply decreased as the radiation dose increased. Seed development below 40 Gy was superior to that of control but declined rapidly above 60 Gy. The seedling survival rate decreased significantly at 60 Gy (less than 50% compared to that of the control), and most seeds did not survive above 100 Gy. We observed a significant reduction in the growth of seedlings irradiated above 60 Gy. The above results suggest that a suitable gamma-ray dose for inducing mutagenesis in indehiscent ginseng seeds is 40 Gy.