• The Korean Journal of Health Service Management
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• v.12 no.1
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• pp.149-160
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• 2018

Objectives : The purpose of this study was to examine the mediating effect of professional self-concept on the relationship between professor-student interaction and job-seeking anxiety among nursing students. Methods : A cross-sectional survey was conducted using a convenient sampling method with data collected from a sample of 294 nursing students. The structured questionnaire included items to assess job-seeking anxiety, professional self-concept, and professor-student interaction among nursing students. The data were analyzed with descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient, and multiple regression using the SPSS 24.0 program. Mediation analysis was performed according to the Sobel test. Results : Analysis of the mediating effect of professional self-concept showed a significant mediating influence of professional self-concept on the relationship between professor-student interaction and job-seeking anxiety. Conclusion : The findings suggest that professional self-concept may play a role in increasing the effect of professor-student interaction on job-seeking anxiety. Therefore, this study underscores the need to consider ways of enhancing professional self-concept during interventions for nursing students.

• Journal of Korean Academic Society of Home Health Care Nursing
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• v.27 no.2
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• pp.169-178
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• 2020

Purpose: This study examined the mediating effects of nursing professionalism on the relationship between the stress of clinical practice and compassion competence in nursing students. Methods: A correlational research design was used in this study. The participants were 120 nursing students recruited from three universities in South Korea. Data were collected using the self-reporting scales of stress of clinical practice, nursing professionalism, and compassion competence. Baron and Kenny's regression method and the Sobel test were used to analyze the mediating effects of nursing professionalism on the association between the stress of clinical practice and compassion competence. Results: The mean score for compassion competence was above average. Of the compassion competence domains, sensitivity and insights had the highest and lowest scores, respectively; there were significant mean differences in compassion competence scores according to their grade and level of satisfaction with nursing major. Compassion competence correlated negatively with the stress of clinical practice, whereas it correlated positively with nursing professionalism. In addition, nursing professionalism exerted full mediating effects on the relationship between the stress of clinical practice and compassion competence. Conclusion: The results suggested that enhancing nursing professionalism could help promote compassion competence among nursing students who experience stress in clinical practice.

• Journal of Korean Academy of Nursing
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• v.46 no.1
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• pp.100-108
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• 2016

Purpose: The aim of this study was to examine the mediating effect of empowerment in the relationship of nurse managers' authentic leadership, with nurses' organizational commitment and job satisfaction. Methods: The participants in this study were 273 registered nurses working in five University hospitals located in Seoul and Gyeonggi Province. The measurements included the Authentic Leadership Questionnaire, Condition of Work Effectiveness Questionnaire-II, Organizational Commitment Questionnaire and Korea-Minnesota Satisfaction Questionnaire. Data were analyzed using t-test, ANOVA, $Scheff{\acute{e}}$ test, Pearson correlation coefficients, simple and multiple regression techniques with the SPSS 18.0 program. Mediation analysis was performed according to the Baron and Kenny method and Sobel test. Results: There were significant correlations among authentic leadership, empowerment, organizational commitment and job satisfaction. Empowerment showed perfect mediating effects in the relationship between authentic leadership and organizational commitment. It had partial mediating effects in the relationship between authentic leadership and job satisfaction. Conclusion: In this study, nurse managers' authentic leadership had significant influences on nurses organizational commitment and job satisfaction via empowerment. Therefore, to enhance nurses' organizational commitment and job satisfaction, it is necessary to build effective strategies to enhance nurse manager's authentic leadership and to develop empowering education programs for nurses.

• The Journal of Korean Academic Society of Nursing Education
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• v.24 no.4
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• pp.406-414
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• 2018

Purpose: The purpose of this paper was to examine the relationships between clinical practice stress and burnout, and the mediating role of empathy in nursing students. Methods: A cross-sectional research design was employed. One hundred seventeen nursing students completed questionnaires on clinical practice stress, empathy (perspective-taking, fantasy, empathic concern and personal distress) and burnout in December 2017. IBM SPSS Statistics 23 was used and descriptive statistics, frequency, Pearson correlation coefficient and multiple regression were conducted. Baron & Kenny method and Sobel test were adopted for analysis of the mediation effect (personal distress of empathy). Results: The mean scores of clinical practice stress and burnout were 3.45 and 43.09, and perspective-taking, fantasy, empathic concern and personal distress of empathy were 2.67, 2.42, 2.64 and 2.19, respectively. The highest relationship between clinical practice stress and empathy was personal distress of empathy (r=.32, p<.001). Burnout was positively associated with clinical practice stress and personal distress of empathy (r=.22, p=.015; r=.51, p<.001). Personal distress of empathy demonstrated a complete mediating effect on the relationship between clinical practice stress and burnout (Z=3.22, p=.001). Conclusion: These results showed that decreasing personal distress of empathy is important for nursing students, and may help in reducing clinical practice stress and burnout.

• The Journal of Korean Academic Society of Nursing Education
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• v.20 no.4
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• pp.558-568
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• 2014

Purpose: This study examines the relationships among perceived stress, humor style, responding humor and depression among college students and the mediating effect of humor between perceived stress and depression. Method: During the period May 6-16, 2013, a convenience sample of 200 subjects was obtained from college K in city G. Data analysis was performed by Pearson's correlation coefficients and regression analysis. Results: The average BDI score was 7.7. There were 40 (20.0%), 16 (8.0%), 8 (4.0%), and 11 (9.0%) students with mild, moderate, and severe depression, respectively. The group with depressive symptoms constituted 3.5% of students. There was a significant positive correlation between negative stress perception and depression. Conversely, there was a significant negative correlation between adaptive humor style and negative stress perception. Ultimately, there were significant negative correlations between positive stress perception, adaptive humor style, maladaptive humor style, responding humor and depression. To test the mediating effect of adaptive humor style in the relationship between negative stress perception and depression, a Sobel test was performed and Z-score of 1.7736 (p=.076) obtained. Conclusion: Though the mediating effect of an adaptive humor style on the relationship between perceived stress and depression was not significant, considering the negative correlation with depression, strategies to increase an adaptive humor style and responding humor is recommended to prevent depression in college students.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.10a
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• pp.215-218
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• 2011

본 논문에서는 비파괴 검사를 이용하여 획득한 세라믹 소재 영상에서 효율적으로 결함을 검출하는 방법을 제안한다. 제안된 방법은 세라믹 소재 영상에 비등방성 필터링 기법과 가우시안 필터링 기법을 반복 적용하여 잡음을 제거하고, Ends-in Search Stretching 기법을 적용하여 명암 대비를 강조한다. 명암 대비가 강조된 영상에 $7{\times}7$ Sobel 마스크를 적용하여 윤곽선을 추출한 후, 임계치 이진화 기법을 적용하여 영역을 세분화하기 위한 기울기를 계산한다. 계산된 기울기를 이용하여 영상을 세분화한 후에 Glassfire 기법을 적용한다. Glassfire 기법이 적용된 영상과 Ends-in Search Stretching 기법이 적용된 영상을 비교하여 중복되는 영역만을 추출한다. 추출된 영역에 퍼지 이진화 기법과 침식 연산을 적용하여 잡음을 제거하고 결함을 검출한다. 제안된 방법을 세라믹 소재 영상을 대상으로 실험한 결과, 기존의 결함 검출 방법보다 효율적으로 결함이 검출되는 것을 확인할 수 있었다.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.05a
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• pp.675-678
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• 2003

현대 사회에서 가스 산업은 기반 기순 산업으로 영향력이 매우 커지고 있으며, 동시에 위험요소를 내포하고 있다. 본 논문은 가스밸브의 연결부분에서 폭발성 발화물질인 오일성분에 의한 안전사고를 방지하고자 유지분 검출시스템을 개발하였다. 용기 밸브의 영상을 $200{\times}200$ 크기의 흑백 이미지로 획득하고, 제안한 유지분 검출 알고리즘을 적용한다. 먼저, 영상에 소벨(Sobel) 연산자를 이용하여 에지(Edge)를 검출하고 오일이 존재하는 영상과 오일이 존재하지 않는 영상을 영상프로파일(image profile) 분석과 영상 감법 둥의 검출방법으로 비교 분석하였다. 첫 번째 방법은 영상프로파일기법으로 3가지 영역인 부분영역, 하위영역, 전체영역으로 오일을 삽입한 후 다항식 근사로 오일의 존재여부를 판별하였고, 두 번째는 영상감법으로 밸브의 특정한 위치에 위치조정표시를 한 후 두 영상의 차를 구하였다. 실험에서는 제안한 검출방법의 실용화 가능성을 확인하였다.

• Journal of Korean Academy of Psychiatric and Mental Health Nursing
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• v.27 no.4
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• pp.370-379
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• 2018

Purpose: The purpose of this study was to test the mediating effect of depression on the relationship between gambling severity and cognitive distortion in Koreans with a gambling disorder. Methods: Secondary data from a comprehensive assessment of problematic gambling between 2015 and 2017 on Korea Center on Gambling Problems were used. The subjects in this study were 254 Koreans with that gambling disorder. Data were collected with self-report structured questionnaires which included individual characteristics, the Korean version of Problem Gambling Severity Index, the Center for the Epidemiologic Studies Depression, and the Gambling Related Cognitions Scale. Data were analyzed by using descriptive statistics, independent t-test, one-way ANOVA with the $Scheff{\acute{e}}$ test, Pearson's correlation coefficients, and a mediation analysis of the Baron and Kenny method with the SPSS 22.0 program. Results: Significant correlations emerged among the three variables, gambling severity, depression, and cognitive distortion. Depression exerted a partial mediating effect (${\beta}=.20$, p<.001) on the relationship between gambling severity and cognitive distortion (Sobel test: z=2.33, p=.012). Conclusion: Based on this study's findings, nursing intervention programs focused on managing gambling severity and decreasing depression are highly recommended to alleviate cognitive distortion in people with a gambling disorder.

• Journal of Korean Public Health Nursing
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• v.35 no.2
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• pp.268-282
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• 2021

Purpose: This study sought to investigate health behavior (HB) and its affecting factors based on Anderson's behavioral model in Lao People's Democratic Republic (PDR). Also, it attempted to identify the mediation of the health locus of control (HLC) between HB and the affecting factors. Methods: Secondary data from 694 people without noncommunicable diseases (NCDs) from a survey conducted by the Ewha Womans and the Laos University were used. The measurements included predisposing, enabling, and needs factors, HLC, HB (current non-smoking, low-risk drinking, physical activity, fruit and vegetable consumption, medical checkup). The mediating effect was analyzed using Baron and Kenny's method and the Sobel test. Results: Predisposing (gender, educational level, ethnic), enabling (social support, item ownership in household) and the needs factors (body mass index) were affecting HB. Internal HLC had a positive influence on HB. The stronger the others and chance HLC, the lower the HB. Chance HLC mediated the relationship between the educational level and HB. Conclusion: There is a need to recognize the importance of chance HLC as a mediator between the educational level and HB. Through this result, high-quality nursing education for the prevention of NCDs should be developed considering the impact of chance HLC.

• Korea Trade Review
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• v.44 no.3
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• pp.25-42
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• 2019

This research examined the mediation effect of Workforce Agility (WA) on the relationship between environmental uncertainty and operational performance. We manipulated the control variables that are known to be affected by employment flexibility. Employment flexibility is caused by idiosyncratic characteristics of Korean port system. The analysis was tested by Baron & Kenny's method. The result indicates that each path of the proposed model is significant. Furthermore, the mediation effect was checked with the Sobel Test. The research revealed that environment uncertainty poses an indirect effect on operational performance. Both supply/demand uncertainty and technological uncertainty affected operational performance through the mediation effect of WA. Most of the distribution centers located in Busan Newport Distripark are operated in a bimodal labor (human resource) system which includes both permanent employees (workers) and temporary employees (workers). This empirical research provides theoretical and managerial implications by suggesting ways to increase efficiency in distribution center operation through WA enhancement, and to improve the unloading labor system.