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유아 놀이성과 또래유능성 관계에서 부모-자녀 상호작용의 매개효과
백지성(Baek, Ji-seong),서현(Seo, Hyun) 한국교원대학교 유아교육연구소 2022 한국유아교육연구 Vol.24 No.1
본 연구는 유아 놀이성과 또래 유능성 관계에서 부모-자녀 상호작용의 매개효과를 실증적으로 분석하는데 목적이 있다. 본 연구의 목적을 달성하기 위해 G시 및 J도 유치원에 재원 중인 만3~5세 유아와 유아의부모 254명을 연구대상으로 선정하여 2021년 6월 14일부터 18일까지 5일 동안 설문조사를 수행하였고, 조사 자료는 SPSS 프로그램을 통해 다음과 같은 연구 결과를 도출하였다. 첫째, 유아 놀이성, 부모-자녀상호작용, 또래 유능성 간의 유의한 관련성이 나타났고, 유아 놀이성과 부모-자녀 상호작용은 유아의 또래유능성을 예측하는 변인으로 나타났다. 둘째, 유아 놀이성과 또래 유능성 관계에서 부모-자녀 상호작용의부분매개변수로서 유의한 효과가 있는 것으로 나타났다. 이는 가정환경에서 유아의 또래 유능성 발달을 위해유아 및 놀이 중심 활동의 중요성을 시사하고, 더 나아가 다양한 놀이 활동 속에서 부모와 자녀 간 긍정적생활지도행동 및 애정 행동의 상호작용이 필요하다는 실천적 함의를 제시하였다는 데 그 의의가 있다. The purpose of this study is to explore the mediating effects of parent-child interactions in the relationship between young children’s playfulness and their peer competence. 254 parents of 3- to 5-year-old children participated in the study and a survey was conducted from June 14 to 18 in 2021. The collected data were analyzed using the SPSS program. The results showed that there was significant correlation between young children’s playfulness, parent-child interaction, and peer competence. The first two factors strongly predicted the last factor of children’s peer competence. Additionally, parent-child interactions had a significant partial mediating effect on the relationship between playfulness and peer competence, which suggests the importance of child-centered and play-based activities for the development of peer competence in the home environment. Practical implications were discussed in that parents’ positive guidance and their affectionate behavior are very important in their interaction with children during play.
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창포류 추출물이 인간 전혈혈소판 응집억제에 미치는 영향
전원경 ( Won Kyung Jeon ),최고야 ( Go Ya Choi ),김슬기 ( Seul Ki Kim ),이인선 ( In Sun Lee ),백지성 ( Ji Seong Baek ) 대한본초학회 2010 大韓本草學會誌 Vol.25 No.3
Objectives: Acori Rhizoma is one of the common widely used herbal medicines with diverse bioactive effects. However, little evidence has been reported about the potential anti-platelet activity of Acori Rhizoma. The present study examined the effects on platelet aggregation by Acori Rhizoma. Methods: In this study, we tested the in vitro effect of 16 kinds of Acori Rhizoma extracts by hot water or 70% ethanol on collagen-induced platelet aggregation in human whole blood using the impedance method of aggregometry. Results: Among them, 2 kinds of 70% ethanol extract and 1 kind of hot water extract showed the significant inhibiting effect on whole blood aggregation. In particular, Acorus gramineus extracts were selected as the most effective candidate. Conclusiions: The results from this experiment provide pharmacological evidence for the traditional medicine, suggesting that Acorus gramineus could be help problems of blood circulation more than Acorus tatarinowii.
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목통(木通),천목통(川木通),관목통(關木通)의 감별기준(鑑別基準)
이금산 ( Guem San Lee ),박경범 ( Kyoung Bum Park ),김영식 ( Young Sik Kim ),이승호 ( Seung Ho Lee ),오현민 ( Hyun Min Oh ),백지성 ( Ji Seong Baek ),조수인 ( Su In Cho ),김홍준 ( Hong Jun Kim ),주영승 ( Young Sung Ju ) 대한본초학회 2011 大韓本草學會誌 Vol.26 No.1
Objectives: Due to morphological similarity, many substitutes and counterfeits have been used as Moktong for thousands of years. This study was designed to determine discriminative criteria for identifying medicinal herbs used as Moktong. Methods: Akebia quinata, A. trifoliata, Clematis armandii, and Aristolochia manshuriensis were collected in various regions. Samples were authenticated and examined by observation and microscopy with paraffin embedding and triple staining using the modified Ju staining method. Results: Three different types of features to establish discriminative criteria for four kinds of Moktong were identified. Botanical features include differences in phyllotaxy, leaf shape, and caulescent. External morphological features were arrangement and size of fine holes(xylem), and overall shape of the section. Internal morphological features include the number of medullary rays, shape of the pitch, type of tissues rounding pitch, appearance of annual rings, shape and amount of crystals(calcium-oxalate), and the appearance of cork cambium. Further details( e.g. identification keys) are in the article. Conclusions: These criteria could provide an effective method for identifying numerous kinds of Moktong distributed in markets throughout northeast Asian nations.
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최고야 ( Go Ya Choi ),고병섭 ( Byoung Seob Ko ),이미영 ( Mi Young Lee ),채성욱 ( Sung Wook Chae ),김영화 ( Young Hwa Kim ),육진아 ( Jin Ah Ryuk ),백지성 ( Ji Seong Baek ),이혜원 ( Hye-won Lee ) 대한본초학회 2011 大韓本草學會誌 Vol.26 No.1
Objective: This study was to compare antioxidant activity and HPLC pattern analysis from 4 species of changpo(changpu). Methods: To compare the antioxidant activity and HPLC pattern analysis from the 4 species of changpo, we performed the in vitro anti-oxidative activity assays and HPLC analysis from 70% ethanol extracts of Acorus gramineus Sol. (=AG), A. tatarinowii Schott (=AT), A. calamus L. (=AC) and Anemone altaica Fisch. ex C.A.Mey (=AA) taken in the herbal medicine market of Korea. Results: AG has the most effective anti-oxidative activity among 4 species of changpo. As the HPLC pattern analysis, AT was detected the unknown peak at retention time 14.9 min whereas AG was not showed any peak at the same retention time. These results suggest that AG could be used rather than AT when it need to be prescribed as anti-oxidative medicine. Conclusions: This result can be used as the basic data contributing to the stability of AG according to an appropriate clinical application.
KCI
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