http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
실외 실험적 온난화 처리가 굴참나무 묘목의 생장에 미치는 영향
이선정 ( Sun Jeoung Lee ),한새롬 ( Saerom Han ),윤태경 ( Tae Kyung Yoon ),정혜근 ( Haegeun Chung ),노남진 ( Nam Jin Noh ),조우용 ( Wooyong Jo ),박찬우 ( Chan Woo Park ),고수인 ( Suin Ko ),한승현 ( Seung Hyun Han ),손요환 ( Yowhan 한국산림과학회 2012 한국산림과학회지 Vol.101 No.4
Climate change affects all biological processes in terrestrial ecosystems including photosynthesis plant growth and productivity. This study was conducted to investigate the effects of experimental warming on the growth of quercus variabilis seedlings. One-year-old Q. variabilis seedlings were planted in control and warmed plots in April 2010. The air temperature of warmed plots was increased by 3°C compared to control plots using the infrared lamp from November 2010. Shoot height and root collar diameter were measured in March 2011 and June 2012 respectively and aboveground and belowground biomass were also measured in March 2011 and 2012 respectively. Shoot height and root collar diameter were significantly higher in warmed plots than in control plots except for root collar diameter in March 2011 Increment (mm) of shoot height and root collar diameter were also higher in warmed plots (529±30 5.6±0.5) than in control plots (464±28 4.5±0.4). However there were no significant differences between warmed and control plots except for root collar diameter. Increment (g/year) of total aboveground and belowground biomass were higher in warmed plots (36.88±6.52 11.91±3.44 24.97±3.73) than in control plots (30.59±5.51 8.73±1.66 21.86±3.88) however the differences were not statistically significant. Higher seedling growth and biomass of warmed plots might be related to the enhanced net photosynthetic rates in spring and the extended growing season.
청소년의 인터넷게임 및 스마트폰 중독과 부모의 개입 정도의 관계
강윤석(Yoonsuk Kang),방수영(Soo-Young Bhang),윤지영(Ji-Young Yoon),한새롬(Saerom Han),최재원(Jaewon Choi) 한국중독정신의학회 2021 중독정신의학 Vol.25 No.1
Objectives : The purpose of this study was to evaluate the relationship between Internet-gaming/smartphone addiction and parental involvement. Methods : From March 2018 to October 2018, a total of 2,701 students in elementary school (n=1,382), middle school (n=798), and high school (n=521) were surveyed in a district in Seoul. The questionnaire included the degree of parental involvement in Internet gaming and smartphone usage and addictive symptoms on these media. The parental attitude was graded as ‘1=completely restrictive/2=mostly restrictive and partially permissive/3=mostly permissive and partially restrictive/4= completely permissive’. Results : Parent group 4 for Internetgaming and parent group 3 for smartphone usage were significantly related to addictive conditions in each media usage. Parent group 1 for smartphone usage was related to less addictive conditions in students. Conclusion : Parental strategy to prevent adolescent s addiction for Internet-gaming and smartphone would differ according to the media type used. Further study would be helpful to reveal the relationship and prevent the addictive problem in this issue. This issue should not be limited to the areas of parental role and responsibility, but more social interest and systemic efforts should be put in place.