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다문화 청소년과 일반 청소년의 건강위험 행태에 영향을 미치는 정신건강 요인 비교
이채현,이인숙 한국학교보건학회 2019 韓國學校保健學會誌 Vol.32 No.2
Purpose: The purpose of this study was to compare the mental health factors related to health risk behaviorsbetween multicultural and monocultural adolescents. Methods: The study subjects were selected from the 2018Korea Youth Risk Behavior Web-Based Survey Dataset. A total of 60,040 multicultural and monoculturaladolescents were included in the analysis. A x2test and logistic regression were conducted, using SPSS 18.0,to compare the general characteristics, mental health, and health risk behaviors of the multicultural and monoculturaladolescents. This process involved a complex sample design. Results: There was a significant differencein the rates of suicidal behaviors. Multicultural adolescents showed a significantly higher rate of suicidal ideation(8.6% vs. 8.5%, p=.004), suicidal plan (3.2% vs. 2.4%, p=.004), and suicidal attempt (5.0% vs 3.1%, p=.04) thanmonocultural adolescents. Perceived stress had a significant impact only on monocultural adolescents. Monoculturaladolescents with high levels of perceived stress were at a greater risk of drinking (high stress=reference;low stress OR=0.91, p=.025) and smoking (high stress=reference; low stress OR=0.90, p=.029) than those withlow stress. Multicultural adolescents who had made suicide attempts were at a higher risk of drinking (multiculturalOR=7.879, p<.001; monocultural OR=2.481, p<.001) and smoking (multicultural OR=4.011, p=.015; monoculturalOR=2.800, p<.001) than monocultural adolescents. Conclusion: To implement an effective smoking anddrinking prevention program, it is necessary to consider how we can reduce the risk factors. Stress managementis important for monocultural adolescents and a proactive suicide-screening program and a suicide preventionprogram should be included in the program for both multicultural and monocultural adolescents.
이채현,최기범,조승목 한국식품과학회 2024 Food Science and Biotechnology Vol.33 No.6
The rising health consciousness of consumers has resulted in multiple studies on the use of animal and vegetable proteins in gluten-free noodle production, but chicken breast meat (CBM) has not been the subject of such studies. Thus, we aimed to create protein-fortified gluten-free noodles using economical and nutritious CBM and compare their quality attributes with commonly used wheat flour noodles (WN). Among the CBM noodles (CN), CN with tapioca starch (CN-T) showed the highest sensory and textural similarity to WN. The color values of cooked noodles were not considerably different. The water absorption capacity and volume expansion ratio of CN-T were not significantly different from those of WN. In CNs, an ungelatinized microstructure was observed, and CN-T displayed well-formed structural bonds related to adhesiveness, similar to WN. The CN-T had a protein content about 2% higher than WN. This finding is informative for the development of gluten-free noodles using CBM.
국내 자생 갈조류의 생리활성 물질 분석 및 총 항산화능력 비교 연구
이채현,박예나,이상길 한국식품과학회 2020 한국식품과학회지 Vol.52 No.1
The inconsistent methods of harvest, identification, and preparation of brown algae samples make it difficult to compare the results of certain measurements across different studies, such as total phenolic contents (TPC), total flavonoid contents (TFC), and total antioxidant capacities (TAC). Therefore, this study aims to systematically measure and compare TPC, TFC, and TAC in 10 types of standardized brown algae extracts provided by the Bio-Resource Information System of Korea. Among the ten brown algae extracts, Ishige foliacea exhibited the highest levels of TPC and TAC, followed by Sargassum nigrifolium. TAC was measured by the following four assays: ABTS, DPPH, superoxide radical scavenging activities, and ferric reducing antioxidant power. TAC was found to be positively correlated with TPC (p<0.05) but not TFC, indicating that Ishige foliacea and Sargassum nigrifolium have potential use as marine antioxidative food material.
서비스 현장코칭품질이 서비스접점직원의 자기효능감과 회복탄력성에 미치는 영향
이채현,오해영,오선미,최정일 한국서비스경영학회 2019 서비스경영학회지 Vol.20 No.5
The purpose of this study is to examine the relationship between the coaching quality in service encounter and relationship quality on the self-efficacy and resilience of service encounter staff to improve capacity and service quality of service staff. For the purpose of this study, a structured questionnaire was conducted for those who participated in the coaching program, and the available 276 responses were collected and used for empirical analysis. In the hypothesis test, SPSS 22.0 ver and R-programming were used to analyze the effects of coaching program factor, coaching environment factor, coaching administrative factor, and relationship quality factors, trust and commitment on self-efficacy and resilience. As a result of statistical analysis, coaching program factors, coaching environment factors, and coaching administration factors showed positive effect on trust. Coaching program factors and coaching administrative factors also had a positive effect on commitment, but coaching environment factors don’t affect commitment. In addition, both trust and commitment were found to be significant for self-efficacy and positive effect on resilience. The implications of this study are that organizations recognize the importance of coaching and it could increase self-efficacy and resilience of organizational members through continuous coaching program.
Strategy to Obtain Photostability of Organic-inorganic Hybrid Perovskite
이채현,이수정,우연수,박득희,신예지,이유정,박세은,윤석준 한국공업화학회 2020 한국공업화학회 연구논문 초록집 Vol.2020 No.-
From late 20<sup>th</sup> century, the alternative energy resources have been studied to satisfy the energy demand, one of serious social issues. Among the renewable energy resources, solar energy can have the biggest potential of resources. To use the solar energy, researchers have been developed various field, such as solar cells, photocatalysis, hydrogen production, water splitting, and so on. Since 2009, research field about organic-inorganic hybrid perovskite has boomed in current next-generation solar cell research field, then the photoconversion efficiency of the perovskite solar cell (PSC) got the record over 24 % last year. To practicalize the PSCs, it is important to obtain photostability to get long-term stability. However, the early PSCs have one of the critical issues about the photostability: phase segregation. In this presentation, story will be given about fundamentals of the phase segregation of perovskite and how to overcome it to obtain the photostability.
From the Beginning, the Synthetic Strategies of the Perovskite Quantum Dots with High Quality
이채현,강동우,전병민,정지원,김경수,한동훈,박종인,윤석준 한국공업화학회 2020 한국공업화학회 연구논문 초록집 Vol.2020 No.-
Obtaining independent synthetic method for key materials of perovskite quantum dot for next-generation energy industry, are required to be localized due to Japanese export regulations. Perovskite quantum dots formed CsPbI<sub>3</sub>-structure using synthesized and purified precursor, PbI<sub>2</sub>. This study seeks to find correlation of the main material’s purity and the effect of perovskite quantum dot by making up a way for the main materials of the perovskite quantum dot. Quantitative analysis about the quantum dot were performed through tunneling electron microscope, X-ray diffractometer, scanning electron microscope, UV-visible absorption spectrophotometer, photoluminescence spectrophotometer, and so on. Photoluminescence quantum yield and stability measurements were able to inform that the correlation between purity of the materials and the performance of quantum dots. As a result, as the materials were refined, the performance of the quantum dots were improved.