When you are running out of imagination: Vicarious learning as a mechanism to revitalize your unutilized knowledge

류세라,최승호,Wen Zhen,Joseph T. Mahoney 한국경영학회 2021 한국경영학회 통합학술발표논문집 Vol.2021 No.8

This study investigates conditions under which the knowledge-originating firm is more likely to learn from other firms’ experience to revitalize its unutilized knowledge. In doing so, we examine 1,757 U.S. pharmaceutical firms from 1979 to 2017 concerning how their propensity to explore or exploit influences the subsequent use of their own unutilized or utilized knowledge. We find that engaging in exploration search promotes spill-ins of their unutilized knowledge to reinvent themselves in a new technological trajectory. In contrast, the exploitation search of firms enables spill-ins of utilized knowledge to extend and refine their existing knowledge. Further, the knowledge distance between the knowledge-originating firm and the recipient firm positively moderates these relationships.

Correlation between cardiovascular risk and total urate volumes by DECT

류세리,이상헌,김해림,이경언 대한내과학회 2017 대한내과학회 추계학술대회 Vol.2017 No.1

요양병원 노인 환자를 위한 신체활동증진 프로그램 개발 및 효과

류세인(Ryu, Se In),김애경(Kim, Aekyung) 기본간호학회 2020 기본간호학회지 Vol.27 No.4

Purpose: The purpose of this study was to develop a physical activity promotion program and identify it’s effects on physical fitness, fall efficacy, vitality, happiness, and adaptation for older adults hospitalized in long-term care hospital. Methods: The research design was a quasi-experimental, nonequivalence control group design. Older adults in long-term care hospitals were assigned to the experimental (n=28) or control group (n=27). The experimental group received a 12-week program consisting of total of 60 sessions, 5 times a week for 20-40 minutes per day. Results: The homogeneity test for the participant physical performance showed no statistically significant differences between the two groups. There were a statistical significant differences between the two groups in muscular strength (Right t=13.81, p=.001, Left t=48.91, p=.001), muscle endurance (t=99.50, p=.001), cardiopulmonary endurance (t=50.12, p=.001), coordination (t=-7.94, p=.001), balance existed (t=-4.84, p=.001), flexibility (t=20.23, p=.001), fall efficacy (t=6.06, p=001), vitality (t=7.01, p=.001) and happiness (t=3.95, p=.001). There was no significant statistical difference between the experimental group and the control group for adaptation (t=0.74, p=.460). Conclusion: The results of this research supports the use of the physical activity promotion program developed in this research as a physical activity and happiness promoting program for older adults in long-term care hospital.

간호학과 학생의 시뮬레이션 기반 학습 경험 : 임상실습과 비교

류세인,김정희,황은숙 한국간호시뮬레이션학회 2015 한국간호시뮬레이션학회지 Vol.3 No.1

Purpose: This study sheds light on the learning experiences of simulation-based education in nursing, through a comparative analysis with clinical practice experiences. Methods: Participants were six nursing students who underwent simulation-based nursing education. In-depth focused individual interviews were conducted, and themes were extracted from the data through content analysis. Results: Two essential themes were extracted: 1) shift from being an observer to being active participants and 2) shift from unidimensional to multi-dimensional problem solving. Conclusion: These results indicate that simulation-based education was effective in enhancing learning attitude and problem-solving skills. These results can also guide nurse educators regarding the conditions under which simulation environments are more effective

생산직 근로자의 피로, 운동 자기효능감, 주관적 건강상태가 웰니스에 미치는 영향

류세인(Ryu, Sein),채여주(Chae, Yeojoo) 한국웰니스학회 2022 한국웰니스학회지 Vol.17 No.4

본 연구는 생산직 근로자를 대상으로 피로, 운동 자기효능감, 지각된 건강상태, 웰니스 정도를 알아보고, 웰니스에 미치는 영향요인을 파악하고자 실시되었다. G시에 소재하는 300명 이상 규모의 제조업 회사 2곳에 근무하는 생산직 근로자 129명을 대상으로 자료를 수집하였으며 수집된 자료는 t-test, ANOVA, Pearson’s correlation, 다중회귀분석을 실시하였다. 연구결과 웰니스은 운동 자기효능감, 지각된 건강상태 간에 유의한 양의 상관관계가 있는 것으로 나타났고, 피로와 유의한 음의 상관관계가 있는 것으로 나타났다. 웰니스에 영향을 미치는 요인은 주관적 경제상태, 피로, 운동 자기효능감, 주관적 건강상태로 나타났으며, 이들 변수의 웰니스에 대한 설명력은 41.3%이었다. 본 연구 결과를 바탕으로 생산직 근로자의 웰니스를 증진시키기 위해 다양한 변수를 고려한 웰니스 프로그램 개발 및 검증이 필요하다. The purpose of this study was to examine of fatigue, exercise self-efficacy, perceived health, and wellness for production workers, and to identify factors affecting wellness. Data was collected from 129 workers who worked in 2 manufacturing companies with more than 300 manufacturing companies in G-city. Data were analyzed using t-test, ANOVA, Pearsons correlation and multiple regression analysis with IBM SPSS statistics 27.0 program. Wellness is related to exercise self-efficacy, perceived health was found to have a significant positive correlation and Fatigue have a significant negative correlation. Factors affecting wellness were found to be a significant influencing factor on perceived economic, fatigue, exercise self-efficacy, and perceived health. It showed an explanatory power of 41.3%. Therefore, It is necessary to develop and verify wellness programs that take into account various variables to promote the wellness of production workers.

초등학생의 스마트폰 중독에 미치는 영향요인

류세인(Ryu, Se In),조인숙(Cho, In Sook) 한국산학기술학회 2015 한국산학기술학회논문지 Vol.16 No.9

본 연구는 초등학생을 대상으로 스마트폰 중독에 미치는 영향요인을 규명하기 위한 서술적 조사 연구이다. 연구대상 은 G광역시에 소재하는 4개 초등학교의 학생 263명이었다. 자료수집은 2014년 7월에 이루어졌으며, SPSS 19.0 program을 이용하여 분석하였다. 스마트폰 사용수준은 비중독군이 84.0%, 중독위험군은 16.0%로 나타났다. 일반적 특성 중 스마트폰 중독과 통계적으로 유의한 차이를 나타내는 특성은 학년, 동거가족, 경제적 수준, 성적, 사용동기, 사용시 좋은 점 및 사용시 간이었다(p<.05). 스마트폰 중독은 충동성(r=.496, p<.001), 일상 스트레스(r=.471, p<.001)와 각각 양의 상관관계가 있었고, 부모의 양육태도(r=-.375, p<.001), 자아존중감(r=-.444, p<.001)과 각각 음의 상관관계가 있었다. 스마트폰 사용시간이 많을수 록, 충동성이 높을수록, 일상 스트레스가 높을수록 대상자의 스마트폰 중독정도를 증가시켰다. 이러한 결과는 청소년 초기의 스마트폰 중독을 예방하는데 많은 관심을 기울여야 함을 시사하고 초기 청소년을 위한 스마트폰 중독 예방 프로그램을 개발 하는데 기초자료로써 유용하게 활용될 것으로 사료된다. The purpose of this study is to clarify the factors that affects smartphone addiction of elementary school students. The subjects were 263 students, from 4 elementary schools located in G-city. Data were collected from July, 2014 and analyzed using SPSS 19.0 program. The prevalence of addiction risk group and non-addicted group were 16.0% and 84.0%, respectively. The variables which had statistically significant differences with smart phone addiction of general characteristics are grade, living together family, economic status, school record, motivation for usage, advantage of usage and using time (p<.05). There was pure correlation between the smartphone addiction and impulsivity (r=.496, p<.001), daily stress (r=.471, p<.001). However, perceived parental attitude (r=-.375, p<.001) and self-esteem (r=-.444, p<.001) were inverse correlation with smartphone addiction. Higher using time, higher impulsivity and higher daily stress were all associated with increased of smartphone addiction level. These results suggest that more attentions should be given to early adolescents and could be effectively used as fundamental data to develop intervention programs, which can prevent the smartphone addiction.

정신재활시설을 이용하는 정신장애인 가족의 돌봄 경험 - 포토보이스방법론을 적용하여

류세나(Se-Na Ryu),조현미(Hyun-Mi Jo) 한국콘텐츠학회 2022 한국콘텐츠학회논문지 Vol.22 No.3

본 연구는 정신재활시설을 이용하고 있는 정신장애인 가족의 돌봄 경험은 어떠한지 탐색하기 위한 질적 연구이다. 분석결과, 정신장애인 가족의 삶은 6개의 주제에서 12개의 하위주제로 나타났다. 발병하기 이전의 삶의 모습은 전기난로처럼 따뜻하고 편안한 일상생활, 가족간 갈등으로 새장의 앵무새처럼 답답하고 힘든생활로 나타났다. 증상이 나타나기 시작한 당사자를 바라보는 느낌은 앞이 잘 보이지 않는 두려움과 막막함, 삶을 꽃 피우기 전 질병에 갇힌 자녀에 대한 죄책감이었고, 강제 입원, 그리고 나의 느낌은 찢어지는 마음에 어찌할 바를 모름, 불투명한 회복과 미래의 삶에 대한 걱정으로 생각이 혼란해짐으로 나타났다. 질병이 장기간 지속되고 입·퇴원이 반복되면서 느낀 경험은 주변에 가족의 정신병이 알려질까 두려움, 반복되는 재발과 증상 악화에 대처하기 위해 안간힘을 씀으로 도출되었다. 정신재활시설을 이용하면서 변화된 삶은 편안한 쉼터에서 마음의 위로를 받음, 미래에 대한 희망이 보이고 웃을 수 있는 여유가 생김으로 나타났고, 앞으로 기대하는 삶, 그리고 희망은 작은 변화를 보며 감사함을 느낌, 회복을 위한 따뜻한 울타리가 되길 다짐함으로 도출되었다. This study is a qualitative study to explore caring of a mentally disabled family using mental rehabilitation facilities. As a result of the analysis, the life of a mentally disabled family appeared in 6 topics and 12 sub-themes. Life before the outbreak was warm and comfortable like an electric stove, and a frustrating and difficult life like a parrot in a cage due to family conflicts. The feeling of looking at the child who is starting to develop symptoms is fear and hopelessness that is hard to see ahead, and a sense of guilt for a child trapped in a disease before blooming his life. Forced hospitalization, and my feelings were torn apart, and my thoughts were confused by opaque recovery and worries about future life. The experience I felt as the disease lasted for a long time and hospitalized and discharged repeatedly feared that the mental illness of the family would be known to the people around me, and found that they struggled to cope with repeated recurrence and worsening symptoms. While using mental rehabilitation facilities, the changed life was comforted in a comfortable shelter, and turned out that there was hope for the future and that there was room to smile. The life expected in the future and the theme of hope turned out to be grateful for small changes and determined to be a warm fence for recovery.

간호대학생의 코로나19에 대한 재난대비인식도, 건강신념, 자기효능감이 감염예방행위에 미치는 영향

류세인 ( Sein Ryu ) 인문사회 21 2023 인문사회 21 Vol.14 No.1

연구 목적: 본 연구는 간호대학생을 대상으로 코로나19에 관한 재난대비인식도, 건강신념, 자기효능감 정도를 알아보고, 감염예방행위 수행에 미치는 영향요인을 파악하였다. 연구 방법: 간호대학생 162명을 대상으로 자료를 수집하였으며 수집된 자료는 t-test, ANOVA, Pearson’s correlation, Multiple regression analysis을 실시하였다. 연구 내용: 연구 결과 재난대비인식도, 건강신념, 자기효능감이 감염예방행위 수행과 유의한 양의 상관관계가 있는 것으로 나타났다. 감염예방행위 수행에 영향을 미치는 요인은 건강신념, 자기효능감이었고, 이들 변수의 감염예방행위에 대한 설명력은 50.8%였다. 결론 및 제언: 본 연구 결과를 토대로 간호대학생의 감염예방행위 증진을 위해 체계화된 커리큘럼을 구축하고 감염예방 교육프로그램 중재 방안을 모색하여야 할 것이다. The purpose of this study was to identify factors affecting COVID-19 disaster preparedness awareness, health beliefs, self-efficacy and infection prevention behaviors of nursing students. This study collected questionnaire data from 162 nursing students. Data were analyzed using t-test, ANOVA, Pearson's correlation and multiple regression analysis. Infection prevention behaviors capacity is related to health beliefs and self-efficacy was found to have a significant positive correlation. Factors affecting infection prevention behaviors capacity were found to be a significant influencing factor on health beliefs and self-efficacy. Therefore, in order to enhance nursing students infection prevention behaviors for COVID-19 disasters, it is required to establish a systematic curriculum of classes.

Bloom의 완전학습모델 적용 교육이 간호대학생의 학업적 자기 효능감, 학습만족도 및 간호술기 수행능력에 미치는 효과

류세인(Se In Ryu),김애경(Ae Kyung Kim) 한국콘텐츠학회 2017 한국콘텐츠학회논문지 Vol.17 No.2

본 연구의 목적은 Bloom의 완전학습모델 적용 교육이 간호대학생의 학업적 자기효능감, 학습만족도, 간호술기 수행능력에 미치는 효과를 검증하기 위함이다. 연구설계는 비동등성 대조군 전후 유사실험 연구이며, 연구 대상은 교육중재에 참여한 실험군 31명과 교육중재에 참여하지 않은 대조군 30명으로 총 61명 이었다. 자료 수집은 자가기입식 설문 방식으로 2015년 11월2일부터 11월 27일까지 이루어졌으며, 자료분석은 χ²-test및 t-test를 통해 분석하였다. 연구결과를 통해 bloom의 완전학습모델을 적용한 간호술기 교육에 참여한 실험군은 참여하지 않은 대조군 보다 학습만족도(t=3.032, p=.004) 및 간호술기 수행능력 (t=2.477, p=.016)이 통계적으로 유의하게 향상되었지만, 학업적 자기효능감은 두 군 간에 유의한 차이가 없었다. 본 연구결과를 통해 Bloom의 완전학습모델 적용 교육은 간호학생에게 기본간호 교육 시 효과적인 교육프로그램으로 추천할 수 있으므로 교육현장에서 활발하게 활용되기를 기대한다. The purpose of this study was to examine the effects of Blooms mastery learning model on academic self-efficacy, learning satisfaction, and nursing skills performance of nursing students. A quasi-experimental study with a non-equivalent control group pretest-posttest design was used. Participants were recruited from two nursing colleges. The sample consisted of an intervention group (n=31) that participated in the educational program and a control group (n=30). The data were collected using self-administered questionnaires from November 2, 2015 to November 27. Data analyses utilized x²-test & t–test. After the education of Blooms mastery learning model, learning satisfaction and nursing skills in the experimental group was significantly increased than that of the control group. However, there were no statistically significant differences between the groups with academic self-efficacy. Findings indicated that, this program can be recommended as an effective educational program for the nursing student to improve their fundamental nursing skills.

Unified Estimates for Parameter Changes in an Exponential Model with a Pareto Outlier

류세기,이창수,박양우 한국자료분석학회 2005 Journal of the Korean Data Analysis Society Vol.7 No.4

When the location parameter in the exponential distribution is functions of a known exposure level, we shall propose several estimators for the changing parameters in the exponential distribution with the presence of an unidentified Pareto outlier using known several estimators for location parameter. And we shall obtain exactly expectations and variances of proposed several estimators for the changing parameter using the property of the determinant and compare numerically mean squared errors for proposed estimators of the changing parameters in the exponential distribution with an unidentified Pareto outlier in the small sample sizes.