• Title/Summary/Keyword: Stress effect

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The Study for Reduction of Stress Concentration at the Stepped Shaft According to Two Types of External Force (하중 종류에 따른 다단축의 응력 집중 완화에 대한 연구)

  • Park, I.S.;Shim, J.J.
    • Journal of Power System Engineering
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    • v.14 no.1
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    • pp.47-52
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    • 2010
  • In this study, Finite Element Analysis have been adopted to analyze reducing stress effect and used to induce the sensitivity of design parameter on various techniques which was used for reducing stress. And so it can be utilized as a data to design on similar model. The effect of reducing stress with respect to change of relief groove radius can be increased by 27.3~18.2 % more than radius of fillet. And if a shoulder fillet radius is larger, additional reducing stress by relief groove radius is not obtained. And there was only little effect on reducing stress by changing the center point of groove radius along horizontal direction. In the case that undercut radius is 1.5mm, Max. Equivalent stress is reduced by 5.71% under bending force and 11.11% under torsion. The best effect of reducing stress at undercut model was yielded when the undercut radius is a forth of difference of stepped shaft radius.

The relationship between perceived organizational justice and job stress, and the moderating effect of trust (조직공정성 인지도와 직무스트레스의 관계 및 신뢰의 조절효과)

  • Ahn, Kwan Young
    • Journal of the Korea Safety Management & Science
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    • v.15 no.4
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    • pp.365-372
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    • 2013
  • This paper reviewed the relationship between perceived organizational justice(distributive justice, procedural justice, interactional justice) and job stress, and the moderating effect of trust(organizational trust and superior trust). Based on the responses from 176 employees, the results of multiple regression analysis appeared as follow; 1) Distributive justice and interactional justice effect negatively on job stress, but procedural justice does not effect on job stress. 2) While organizational trust and superior trust are stronger, interactional justice effect less negatively on job stress. When interactional justice is higher, job stress is lower in high trust level than in low trust level.

Mediating Effect of Stress on Relationship between Emotional Intelligence and Burnout among Nursing College Students (일개 간호대학교 학생의 감성지능과 소진과의 관계에서 스트레스의 매개효과)

  • Ko, Chung Mee
    • Journal of the Korean Society of School Health
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    • v.28 no.3
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    • pp.239-247
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    • 2015
  • Purpose: The purpose of the study was to identify the effect of stress on the relations between emotional intelligence and burnout among nursing college students. Methods: The study is a cross-sectional survey and the participants were 363 students attending a nursing college located in Seoul. Data were collected by convenience sampling using self-reported questionnaires that consisted of general characteristics, emotional intelligence, perceived stress and burnout. Data were analyzed by descriptive statistics, t-test, ANOVA, correlation, and multiple regression. Results: Findings of the multiple regression were as follows. First, emotional intelligence had a significant negative-effect on stress. Second, emotional intelligence had a significant negative-effect on burnout. Third, stress had a significant positive-effect on burnout and had a mediating effect on the relationship between emotional intelligence and burnout. Conclusion: Results of the study suggest that as a way to reduce nursing college students' stress and burnout, programs which help improve nursing college students' emotional intelligence should be developed and implemented.

Stress relaxation effect on uniaxial compressive strength values of a silt type soil

  • Eren Komurlu
    • Geomechanics and Engineering
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    • v.32 no.5
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    • pp.495-502
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    • 2023
  • In this study, stress relaxation tests were carried out by keeping silt type soil specimens under different strain levels. Decreases in the stress values with time data was collected to better understand the effect of the strain level on the relaxation properties of soil specimens. In addition, the stress relaxation effect on the uniaxial compressive strength (UCS) values of the specimens was investigated with a series of tests. According to the results obtained from this study, the UCS values of the silt specimens significantly vary as a result of the stress relaxation effect. The UCS values were determined to increase with an increase of relaxation strain level to a threshold value. On the other hand, the UCS values were found to be affected adversely in case of high stress levels at the initiation of the relaxation, which are close to the peak level.

The Relationships between Leisure Activity Characteristics, Stress, and Quality of Life of Healing Tourists - The Moderating Effect of Involvement on Rural Healing Tourism - (치유관광객의 여가활동 특성, 스트레스, 삶의 질의 관계 - 농촌 치유관광 관여도의 조절효과 -)

  • Kim, Kyung-Hee;Min, Jae Han
    • Journal of Agricultural Extension & Community Development
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    • v.29 no.3
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    • pp.143-153
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    • 2022
  • Leisure activity characteristics are related to an individual's stress management as well as quality of life. This study analyzed the relationship between leisure activity characteristics, stress, and quality of life of healing tourists, and analyzed the moderating effect of involvement on rural healing tourism. For this purpose, this study analyzed 658 cases who experienced rural healing tourism. Among the characteristics of leisure activities, the conflict between work and leisure had a positive (+) effect on stress, and that stress had a negative (+) effect on the quality of life. Among the characteristics of leisure activities, social support was found to have a positive (+) effect on the quality of life. In the relationship between stress and quality of life, involvement on rural healing tourism was found to have a moderating effect. The results of this study indicate the importance of social support for work-life balance and leisure, suggesting that daily recovery through rural healing tourism has a positive effect on personal stress management as well as quality of life.

Examination of the Moderator Effect of Active Stress Coping on the Influence of Parent-Childcare Teacher Communication on Teacher's Job Stress and Turnover Intention (보육교사가 지각하는 부모와의 의사소통 수준이 직무스트레스와 이직의도에 미치는 영향: 교사의 적극적인 스트레스 대처방식의 조절효과 검증)

  • Lee, Min A;Lim, Sun Ah
    • Korean Journal of Childcare and Education
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    • v.14 no.6
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    • pp.53-67
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    • 2018
  • Objective: This study aimed to investigate the effect of parent- teacher communication on childcare teacher's job stress and turnover intention. This study also examined if the level of active stress coping used functions as a moderator in relationships among parent-teacher communication, childcare teacher's job stress, and their turnover intention. Methods: To achieve this, this study used data from 223 surveys from childcare teachers and analyzed the data with SEM and multi-group SEM analysis methods. Results: First, parent-childcare teacher communication influenced the teacher's turover intention through job stress. Second, the effect of parent-childcare teacher communication on job stress was not found in the higher-level of the active stress coping group. This was different from the significant effect in the lower-level of the active stress coping group. Also, parent-childcare teacher communication influenced teacher's turnover intention through job stress in the lower-level of the active stress coping group. In contrast, the mediation effect was not shown in the higher group. Conclusion/Implications: The results of this study show the effect of parent-childcare teacher communication on teacher's job stress and their turnover intention. Also, this study shows that the level of active stress coping could moderate the relationship among parent-childcare teacher communication, teacher's job stress, and their turnover intention.

A Study on the Effects of Trauma Case Experience on PTSD of Safety/Health Manager's -The Moderated Mediation Effect of Social Support through Job Stress- (안전/보건관리자의 외상 사건 경험이 외상 후 스트레스 장애에 미치는 영향 -직무스트레스를 통한 사회적지지의 조절된 매개효과-)

  • Shim, Jae-Beom;Lee, Mi-Eun
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.31 no.1
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    • pp.38-49
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    • 2021
  • Objectives: This study was conducted to analyze the impact of safety/health managers' experience of trauma case on their post traumatic stress disorder and the mediation effects of job stress and the moderated mediation effects of social support. Method: Using a structured questionnaire, data were collected from 241 workplace safety/health managers with experience in trauma case. The collected data were analyzed using SPSS(IBM. Ver.26.0) and verified through SPSS PROCESS Macro (Ver. 3.4). Results: The trauma case experience and the job stress, which is a mediation variable, had a statistically significant positive effect on post-traumatic stress disorder, and the job stress had a positive mediation effect in the relationship between the trauma case experience and post-traumatic stress disorder. Social support had a statistically significant negative moderation effect in the relationship between the trauma case experience and job stress; social support had a moderated mediation effect on the indirect effect of a job stress on the post-traumatic effect through a trauma case experience. Conclusion: The above findings suggest that work-related job stress management is important in order to reduce safety/health managers' post-traumatic stress disorder caused by the experience of trauma case, and that social support is essential to reduce the job stress, which can later be used as a basis for further studies.

The effects of job characteristics and psychological stress response on accidents, and the mediating effect of psychological stress response (직무특성과 심리적 스트레스 반응이 사고빈도에 미치는 효과 및 심리적 반응의 매개효과)

  • Kim, Wan-Il;Ahn, Kwan-Young
    • Journal of the Korea Safety Management & Science
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    • v.15 no.1
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    • pp.41-49
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    • 2013
  • This paper reviewed the relationship among job characteristics, psychological stress response, and accidents, and the mediating effect of psychological stress response between job characteristics and accidents. Based on the responses from 176 employees, the results of multiple regression analysis appeared as follow; 1) autonomy, importance and feedback effect negatively on psychological stress response. 2) psychological stress response effects positively on accident frequency. 3) psychological stress response mediates fully between autonomy and accident. 4) psychological stress response mediates partly between feedback and accident.

Moderated Mediation Effect of Mindfulness on the Relationship Between Muscular Skeletal Disease, Job Stress, and Turnover Among Korean Firefighters

  • Lee, Jong-Hyun;Lee, Jaeeun;Lee, Kyung-Sun
    • Safety and Health at Work
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    • v.11 no.2
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    • pp.222-227
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    • 2020
  • Background: This study investigated the effect of increased job stress, caused by musculoskeletal disease (MSD) among firefighters, on a firefighter's intention to leave the profession, henceforth referred to as "turnover intention," and verified the moderating effect of mindfulness on such a relationship. Methods: A survey involving a total of 549 Korean male firefighters as participants was conducted herein, and the following results were obtained: the mediation effect of the MSD to turnover intention through job stress was confirmed, and the indirect effect of job stress was verified. Results: We verified the moderated mediation effect of mindfulness on the relation:MSD, job stress, and turnover intention. The conditional indirect effect for middle and high levels of mindfulness is significant. Conclusion: The result of this study is supported by proofs of the relationship between a firefighter's MSD, job stress, and turnover intention, and these case studies reveal the moderated mediation effect of dispositional mindfulness.

The Mediating Effect of Stress Coping Type and Self-esteem between Life Stress and Suicidal Ideation in Nursing College Students (간호대학생의 생활 스트레스와 자살생각 간의 관계에서 스트레스 대처방식과 자아존중감의 매개효과)

  • Park, Pil-Nam
    • Journal of the Korean Society of School Health
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    • v.29 no.1
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    • pp.1-10
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    • 2016
  • Purpose: The purpose of this study was to identify the mediating effect of stress coping type and self-esteem between life stress and suicidal ideation in nursing college students. The research design was descriptive study. Methods: A set of self-reported questionnaires was completed by 197 nursing college students, including demographic characteristics, life stress, stress coping type, self-esteem, and suicidal ideation. Data was analyzed using t-test, ANOVA, $Scheff{\acute{e}}^{\prime}s$ test, correlation analysis, and regression analysis for mediating effect by SPSS ver. 22. Results: The mean age was 20.9 years. The mean scores were 2.4, 3.6, and 1.7 out of 5 Likert scales for items of life stress, self-esteem, and suicidal ideation, respectively. The mean score for stress coping type was 2.36 out of 4 Likert scales. There was a positive correlation between suicidal ideation and life stress related to tasks, life stress related to interpersonal relationship, and emotion-focused coping of stress coping type (r=.537, p<.01); while a negative correlation between self-esteem and suicidal ideation. emotional-focused coping of stress coping type had a partial mediating effect between life stress related to tasks and suicidal ideation. Also, self-esteem had a partial mediating effect between life stress related to tasks and suicidal ideation as well as between life stress related to interpersonal relationship and suicidal ideation. Conclusion: Based on the finding of this study, it is necessary to apply various program to stress coping skill and self-esteem in order to reduce suicidal ideation in nursing college students.