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Solubilization of Reduced Graphene in Water through Noncovalent Interaction with Dendrimers
Yoon, Seyoung,In, Insik The Chemical Society of Japan 2010 Chemistry letters Vol.39 No.11
<P>Solubilization of reduced graphene is simply attempted through in situ reduction of graphene oxide (GO) solution in the presence of poly(propylene imine) dendrimers <B>G4</B> or <B>G5</B> with terminal amine groups through noncovalent interaction. Interestingly, porous graphene film was formed by filtration of these dendrimer-stabilized reduced graphene solutions.</P>
서울 일부 지역 학교 청소년들의 식품/영양 라벨링에 대한 중요도-수행도 연구
윤정윤(Yoon, Jeong-Yoon),하애화(Ha, Ae Wha),주세영(Ju, Seyoung) 한국영양학회 2017 Journal of Nutrition and Health Vol.50 No.4
Purpose: This study investigated the importance and performance of food/nutrition labeling. The aim was to determine how important students consider food nutritional labeling, utilization of nutrition labels in daily life, and consumer satisfaction of current nutritional labeling. Methods: This study was conducted using a primary survey of students at one high school in Seoul. A total of 300 of 382 questionnaires were analyzed. Results: Regarding difference analysis of the importanceperformance of food/nutrition labeling, importance showed higher scores than performance in all 10 attributes. According to the results of Importance and Performance Analysis (IPA), ‘health, weight control and maintenance, proper dietary habits, and personal satisfaction’ displayed both high importance and performance in the first quadrant. Importance of two factors (health and nutritional factor and effects of media and education) of the 10 attributes positively influenced overall satisfaction in the multiple regression analysis. Conclusion: To develop healthier food choices, it is necessary to educate adolescents about food/nutrition labeling and improve the food/nutrition labeling system.