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여가스포츠 참여대학생들의 각성추구성향이 몰입경험 및 운동지속의도에 미치는 영향
정진배(Joung, Jin-Bae),박정훈(Park, Jeong-Hun),한대호(Han, Dae-Ho) 한국체육과학회 2015 한국체육과학회지 Vol.24 No.3
This study was designed to shed light on the effect of sensation seeking tendency on flow experience and exercise adherence intention in University students’ leisure sports paticipation 283 University students were sampled from Yongin City in Gyeonggido by using convenient sampling method. Results derived from the researches based on the aforementioned methods and data analyses are as follows: First, novelty which is sub factor of sensation seeking tendency had positive effect on all sub factors of flow experience. Second, novelty which is sub factor of sensation seeking tendency had positive effect on exercise adherence intention, but thrill-seeking sub factor of sensation seeking had negative effect on exercise adherence intention, Third, time and space deformation, concentration, action accordance sub factors of flow experience had positive effect on exercise adherence intention.
고려 엉겅퀴(Cirsium setidens Nakai) 잎 조직을 이용한 callus 배양 및 항산화 활성 검증
박정훈,심예지,박기임,이인순,문혜연 대구대학교 특수교육재활과학연구소 2010 産業技術硏究 Vol.21 No.1
We described the effects of antioxidant activity on the extracts of tissue and callus formation by Cirsium setidens Nakai. The callus culture were induced from leaf tissue of Cirsium setidens in both MS and B5 medium with IAA or/and kinetin (0∼5.0 ㎎/ℓ). As medium for callus culture induced from Cirsium setidens, B5 medium showed better condition than MS media. MS medium brought to decrease callus differentiation after formation, on the other hand B5 medium induced to accelerate callus differentiation. Among phytohormones is required 0.5 ㎎/ℓ of IAA and between 2.0 ㎎/ℓ and 1.0 ㎎/ℓ of Kinetin for formation of callus. In order to extract functional material from natural leaf and callus tissue of Cirsium setidens used distilled water and 75% ethanol as solvent and those extract used to determine antioxidant activity as alpha-diphenyl-2-picryl-hydrozyl (DPPH) radicals scavenging effect and TBA(thiobarbituric acid) activity. In result, the effect of DPPH and TBA had high activity more natural leaf extract than callus tissue and 75% ethanol was solvent better than distilled water. The 75% ethanol extract of natural leaf showed an excellent antioxidant activity because that particularly had highest concentration of vitamin C and total phenol among those extracts