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청소년 게임 과몰입과 삶의 만족도의 연관성 연구 - 잠재집단 및 조절효과 분석을 중심으로
허윤선(Yoon Sun Heo),정의준(Eui Jun Jeong) 한국게임학회 2023 한국게임학회 논문지 Vol.23 No.3
본 연구는 청소년이 지각하는 부정 정서가 자기통제 요인의 매개효과를 통해 청소년의 삶의 만족에 미치는 영향을 밝히는 데 있다. 특히, 게임 과몰입 요인의 조절효과분석과 잠재집단분석(LCA)에 연구의 초점을 두었다. 전국 초-중-고등학생(만 10~17세)의 게임 이용 태도를 조사한 한국콘텐츠진흥원의 게임 이용자 패널 데이터(n=778)를 분석한 결과, 불안, 고독, 스트레스와 같은 부정 정서는 자기통제의 중요한 저해 변인이며, 자기통제는 삶의 만족의 촉진 변인으로 확인되었다. 잠재집단 분석 결과, 게임 과몰입이 강한 집단에서 스트레스 요인의 영향이 크게 나타났으며, 반면, 게임 과몰입이 약한 집단에서는 부정 정서 보다는 자기통제 요인의 영향이 큰 것으로 밝혀졌다. This study explored the effect of adolescent negative affect on life satisfaction via self-control, with a focus on the moderating effect of game immersion and latent group analysis. Analyzing panel data (n=778) from KOCCA, we found that anxiety, loneliness, and stress impeded self-control, while it enhanced life satisfaction. The group with excessive game immersion had high stress, and low immersion group had strong self-control. This highlights the importance of self-control for adolescent life satisfaction and the need for interventions to address excessive game immersion.
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허정욱 ( Jeong Wook Heo ),김현환 ( Hyeon Hwan Kim ),이광재 ( Kwang Jae Lee ),윤정범 ( Jung Boem Yoon ),이정관 ( Joung Kwan Lee ),허윤선 ( Yoon Sun Huh ),이기열 ( Ki Yeol Lee ) 한국환경농학회 2015 한국환경농학회지 Vol.34 No.1
BACKGROUND: For commercial production of greenhouse crops under shorter day length condition, supplementary radiation has been usually achieved by the artificial light source with higher electric consumption such as high-pressure sodium, metal halide, or incandescent lamps. Light-Emitting Diodes (LEDs) with several characteristics, however, have been considered as a novel light source for plant production. Effects of supplementary lighting provided by the artificial light sources on growth of Kale seedlings during shorter day length were discussed in this experiment. METHODS AND RESULTS: Kale seedlings were grown under greenhouse under the three wave lamps (3 W), sodium lamps (Na), and red LEDs (peak at 630 nm) during six months, and leaf growth was observed at intervals of about 30 days after light exposure for 6 hours per day at sunrise and sunset. Photosynthetic photon flux (PPF) of supplementary red LEDs on the plant canopy was maintained at 0.1 (RL), 0.6 (RM), and 1.2 (RH) μmol/m2/s PPF. PPF in 3 W and Na treatments was measured at 12 μ mol/m2/s. Natural light (NL) was considered as a control. Leaf fresh weight of the seedlings was more than 100% increased under the 3 W, Na and RH treatment compared to natural light considering as a conventional condition. Sugar synthesis in Kale leaves was significantly promoted by the RM or RH treatment. Leaf yield per 3.3 m2 exposed by red LEDs of 1.2 μmol/m2/s PPF was 9% and 16% greater than in 3W or Na with a higher PPF, respectively. CONCLUSION: Growth of the leafy Kale seedlings were significantly affected by the supplementary radiation provided by three wave lamp, sodium lamp, and red LEDs with different light intensities during the shorter day length under greenhouse conditions. From this study, it was suggested that the leaf growth and secondary metabolism of Kale seedlings can be controlled by supplementary radiation using red LEDs of 1.2 μmol/m2/s PPF as well as three wave or sodium lamps in the experiment.
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05 포스터 발표 : 자연생태 환경 분야(PN) ; 식물공장 시스템내 광환경 제어가 적축면 상추 생장에 미치는 영향
허정욱 ( Jeong Wook Heo ),김동억 ( Dong Euk Kim ),이광재 ( Kwang Jae Lee ),강동현 ( Dong Hyeon Kang ),이시영 ( Si Young Lee ),신현만 ( Hyun Man Shin ),허윤선 ( Yoon Sun Huh ),이기열 ( Ki Yeol Lee ),김태중 ( Tae Jung Kim ),김숙종 ( 한국환경농학회 2014 한국환경농학회 학술대회집 Vol.2014 No.-
Plant factory, which considered as a novel plant production system preparing for the climate changes such as a global warming or raining, is an attractive year-round production technique of leafy plants regardless of place or season. The environmental factors of air temperature, relative humidity, nutrient, CO2 concentration, light intensity or quality inside the factory system influencing on growth have been reported. In this study, effects of light-environmental control of quality or intensity were investigated on growth of red curly lettuce ( Brassica rapa) seedlings with different four growth ages (0, 10, 20, and 30 days-old after transplanting) inside the factory system. ‘Tukksum’ red-curly lettuce which developed two true leaves was used as a plant material, and the seedlings were cultured under nutrient solution of 1.5 ds m-1 EC and 5.8 pH for 10 days after light exposure of 50, 100 or 230 μmol m-2 s-1. Light-emitting diodes of Red, blue plus red, and blue plus white were used, and fluorescent light was considered as a control. In 0 day-old seedlings after transplanting, dry weight and number of leaves under blue plus red light of 50 μmol m-2 s-1 light intensity for 10 days increased 28 and 19% comparing with the control, respectively. Increasing of fresh and dry weights in 30 days-old seedlings was significantly stimulated by blue plus red and red light. However, leaf pigmentation was inhibited by the red light regardless of the different growth ages and promoted by the mixture lights. Under 230 μmol m-2 s-1 light intensity, number of leaves, fresh and dry weights were greater by mixture-light exposure on 20 days-old seedlings. On 30 days-old seedlings, increment of dry and fresh weights was also affected by the mixture light. Leaf pigmentation was significantly inhibited by the red light regardless of the different light intensities in all the growth ages. Higher growth and pigmentation could be achieved at 20 and 30 days-old seedlings cultured under the mixture lights of blue, red, or white. It is concluded that light intensity should be controlled according to growth ages for growth and pigmentation, but rather stable control during culture period, and monochromic red is not suitable for leaf pigmentation of red curly lettuce in plant factory system.
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