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      • KCI등재후보

        Immunomodulatory effect of β-glucan derived from Saccharomyces cerevisiae strains

        이영오,신명수,이완규 충북대학교 동물의학연구소 2013 Journal of Biomedical and Translational Research Vol.14 No.1

        The aim of this study was to evaluate immunopotentiating activities of β-glucan derived from Saccharomyces (S.) cerevisiae and to select new strains having possibility as an immune-enhancing substance. We examined SB20 strains derived from commercial product as a control, and extracted β-glucans from the four strains of S. cerevisiae. RAW264.7 macrophages were treated with heat-killed yeasts, β-glucans, and lipopolysaccharide (LPS). The production of nitric oxide (NO) and cytokines such as TNF-α and IL-1β were then quantified. When macrophages were induced directly by in vitro addition of β-glucan, little production of NO and IL-1β was observed. When pretreated with strong stimulants, i.e., LPS, most yeasts showed down-modulation of NO and IL-1β production. However, TNF-α secretion was triggered by β-glucans and even more increased by the mixture effect of LPS and β-glucans. In particular, S6 strain induced TNF-α secretion more than other strains. Therefore, we can conclude that the S6 strain has possibility as an immune-enhancing substance.

      • KCI등재

        10대 청소년의 스포츠브랜드 선택속성과 브랜드태도, 고객만족 및 재구매의도와의 관계 : 언더아머브랜드를 사례로

        이영오 한국스포츠학회 2019 한국스포츠학회지 Vol.17 No.2

        이 연구의 목적은 스포츠브랜드 시장 내에서 구매욕구가 높은 10대 청소년의 스포츠브랜드 선택속성과 브랜드 태도, 고객만족 및 재구매의도와의 관계를 언더아머브랜드의 사례를 통하여 분석하는 것이다. 연구대상은 2018년 12 월~2019년 3월까지 서울・수도권 지역에 있는 중・고등학생들을 모집단으로 하여 총 200명이 설문조사에 응답했으며, 이 중 응답의 신뢰성이 없다고 판단된 6부를 제외하고 194부를 최종분석 자료로 채택하였다. SPSS 23.0을 활용하여 빈도분석, 탐색적 요인분석, 신뢰도분석, 상관분석, 다중회귀분석을 실시하였다. 결과는 다음과 같다. 첫째, 선택속성 중 내재적 속성만이 브랜드태도에 유의한 영향을 미쳤다. 둘째, 선택속성이 고객만족에 유의한 영향을 미쳤다. 셋째, 브랜 드태도가 고객만족에 유의한 영향을 미쳤다. 넷째, 브랜드태도가 재구매의도에 유의한 영향을 미쳤다. 다섯째, 고객만 족이 재구매의도에 유의한 영향을 미쳤다. The purpose of this study is to analyze the effects of sports brand selection attribution on brand attitude, customer satisfaction and repurchase intents of teenagers with a high desire to buy in the sports brand market through the example of underarmour brand. A total of 200 middle and high school students in Seoul and the metropolitan area surveyed the research targets between December 2018 and March 1919. Among them, 194 questionnaire was adopted as the final analysis, excluding six parts of the questionnaire. Using SPS 23.0, frequency analysis, exploratory factor analysis, reliability analysis, correlation analysis, and multiple regression analysis were performed. The results are as follows. First, only the intrinsic attribute of the selection attribute had a significant effect on the brand attitude. Second, selection attribute had a significant effect on customer satisfaction. Third, brand attitude had a significant effect on customer satisfaction. Fourth, brand attitude had a significant effect on repurchase intention. Fifth, customer satisfaction had a significant effect on repurchase intention.

      • KCI등재

        블렌디드 러닝 학습을 통한 체육대학 학생들의 전공역량 강화 연구

        이영오,김형서 한국스포츠학회 2020 한국스포츠학회지 Vol.18 No.4

        이 연구의 목적은 블렌디드 러닝 학습을 통한 체육대학 학생들의 전공역량 강화에 대해 규명하는 것이다. 이 연구 의 대상은 충청남도에 위치한 S대학교에 2020년 1학기 기간(6주간 녹화형 온라인/9주간 오프라인) 전공학습에 참여한 경험이 있는 체육전공 대학생 137명을 대상으로 편의표본 추출법을 활용하여 표본을 추출하였다. 자료처리는 SPSS 23.0버전을 활용하여 다음과 같이 분석을 실시하였다. 자료처리는 빈도분석, 기술통계, 대응표본 t-test를 실시하였다. 결과는 다음과 같다. 첫째, 온․오프라인 학습에 대한 학생들의 학습 전ㆍ후에 인식은 차이가 있는 것으로 나타났다. 둘째, 온라인학습에 대한 학생들의 기대도와 만족도는 학생들의 학습 전ㆍ후에 차이가 있는 것으로 나타났다. 종합하면, 앞으로 포스트 코로나 시대가 더욱 확대될 가능성을 배제할 수 없으며, 이와 유사한 위기상황이 다시 오지 않는다고 보장할 수도 없다. 이에 교육현장은 이러한 사회적 혼란을 대비하여 온라인학습 방식을 도입한 체계적인 학습시스템을 도입할 필요가 있다. 기존의 온라인(녹화형)에서의 단점인 몰입감, 쌍방향소통의 부족 등에 대한 문제를 해결하고 대학 생활에 대한 만족감을 높일 수 있도록 오프라인학습 형태에서의 장점을 부각한 학습방안을 모색 할 필요가 있다. The purpose of this study is to investigate the reinforcement of the major competencies of physical education students through blended learning. The subject of this study was 137 college students majoring in physical education who had experience in the 1st semester of 2020(6 weeks recorded online/9 weeks offline) at S University in Chungcheongnam-do. Data processing was performed by frequency analysis, descriptive statistics, and paired t-test. The result is as follows. First, there was a significant difference in students' perception of online and offline learning before and after class. Second, it was found that there was a significant difference between students' expectations and satisfaction with online learning before and after class. The educational field should present a plan that highlights the merits of offline learning in order to solve problems such as immersion and lack of communication, which are the shortcomings of the existing online(recording type), and increase satisfaction with university life.

      • KCI등재

        Measures to Enhance Safety in the Course of Sports Events

        이영오,함주일 한국스포츠학회 2022 한국스포츠학회지 Vol.20 No.1

        The purpose of this study is to investigate the mediating effect on the performance of sports events through the improvement of safety according to the progress of sports events. In order to achieve the purpose of the study, a survey was conducted to find out the actual conditions of the constituent factors and the improvement of efficiency according to the progress of sports events. In order to secure the representativeness of the research results, 435 copies were used in this study through questionnaires and internet surveys, mainly in the metropolitan area, where sports facilities (cultural and sports facilities) are more concentrated than in other areas. A survey was conducted as the subject of the study, and data were analyzed through the SPSS 22.0 and AMOS 18.0 programs. Specifically, each analysis method was used according to the purpose of the analysis as follows. First, a frequency analysis was performed to examine the demographic characteristics of the survey subjects. Second, reliability analysis was performed to verify the reliability and validity of the recognition variables of sports events. Third, frequency analysis was performed to identify the problems of sports safety components and ways to improve efficiency. Fourth, in order to examine the differences in perception of safety enhancement measures for sports events, the response rate of respondents to each item is treated as important, focusing on the two-sample T-test and frequency analysis. In addition, a kai-care (-test) was conducted together to find out whether the opinions of several respondents on the same item were different and whether it was appropriate. One-way Anova was carried out to examine ways to promote mutual cooperation between government officials. As a result of the study of this study, it was found that the overall evaluation of the management and operation of safety enhancement measures according to the progress of sports events was at an average level. However, while moderate or negative evaluations were high on the protection of the rights and interests of sports event officials and players and the policy or operation of the association, it was found that the sports event officials were very active in their cooperation with the association policy.

      • KCI등재

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