• Title/Summary/Keyword: T-stress

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The Influence of Disabled Worker's Social Support, Self Efficiency & Depression on Job Stress (장애인근로자의 사회적 지지, 자기효능감 및 우울이 직무 스트레스에 미치는 영향)

  • Kim, Younsil;Kwon, Myoungjin;Kim, Siekyeong
    • Korean Journal of Occupational Health Nursing
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    • v.21 no.2
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    • pp.116-124
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    • 2012
  • Purpose: This study was conducted to examine the influencing factors of social support, self efficiency and depression among the hearing-impaired and physically disabled on their job stress. Methods: The data were collected from Jan.1 to Aug. 30, 2010 from 151 disabled workers. The instruments for this study were the Korean Occupational Stress Scale (KOSS), Social Support Scale, General Self-Efficacy Scale and Beck Depression Inventory-Korean Version (K-BDI). The data were analyzed using t-test, Pearson correlation coefficient and multiple regression with the SPSS/WIN 18.0. Results: The physically disabled show higher social support (t=0.284, p= .001) and self efficacy (t=0.165, p= .024) but lower in depression (t=0.789, p<.001) than the hearing-impaired. There are negative correlation between job stress and social support, job stress and self efficacy but a positive correlation between job stress and depression. These three factors explained 42.9% of the variance in job stress. Conclusion: Social support and self efficacy have positive impacts on job stress but depression has negative impact.

The Static Strength Analysis of Prying Action for T-flange Shape Structure Using F10T High Strength Bolt (F10T 고장력 볼트를 이용한 T-형 플랜지형 구조물의 Prying Action에 따른 정적강도 해석)

  • Park, Myung-Kyun;Lee, Joong-Won;Koo, Bon-Sung
    • Journal of the Korean Society of Safety
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    • v.23 no.4
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    • pp.19-24
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    • 2008
  • This paper presents and discusses the experimental results on the F10T high strength bolts used in the T-flange joint structure. The experimental works were carried out for the parameters which are flange web thickness, the distance between bolts, prying ratio. The results show that the working stress imposed to bolts decreases as the flange web thickness increases on the other hand the imposed stress to the bolts increases as the distance between two bolts increases. In other words the strength of the T-flange joint increased as the web flange thickness increases and the distance between two bolts decreases. The prying ratio is increased as the distance between two bolts increases and as the flange web thickness decreases However, the degree of stress decrease in flange thickness variation is not that high as the distance variation between two bolts. Finally the equation for predicting the failure stress in T-flange joint structure using F10T high strength bolts was suggested.

Hot spot stress approach for Tsing Ma Bridge fatigue evaluation under traffic using finite element method

  • Chan, T.H.T.;Zhou, T.Q.;Li, Z.X.;Guo, L.
    • Structural Engineering and Mechanics
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    • v.19 no.3
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    • pp.261-279
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    • 2005
  • The hot spot stress approach is usually adopted in the fatigue design and analysis of tubular welded joints. To apply the hot spot stress approach for fatigue evaluation of long span suspension bridges, the FEM is used to determine the hot spot stress of critical fatigue location. Using the local finite element models of the Tsing Ma Bridge, typical joints are developed and the stress concentration factors are determined. As a case for study, the calculated stress concentration factor is combined with the nominal representative stress block cycle to obtain the representative hot spot stress range cycle block under traffic loading from online health monitoring system. A comparison is made between the nominal stress approach and the hot spot stress approach for fatigue life evaluation of the Tsing Ma Bridge. The comparison result shows that the nominal stress approach cannot consider the most critical stress of the fatigue damage location and the hot spot stress approach is more appropriate for fatigue evaluation.

Influence of Anisotropic Property Ratio of Orthotropic Material on Stress Components and Displacement Components at Crack tip Propagating with Constant Velocity Under Dynamic Mode I (동적모드 I 상태에서 직교 이방성체의 이방성비가 등속전파 균열선단의 응력성분과 변위성분에 미치는 영향)

  • 이광호;황재석;최선호
    • Transactions of the Korean Society of Mechanical Engineers
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    • v.19 no.1
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    • pp.87-98
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    • 1995
  • When the crack in orthotropic material is propagating under dynamic model I load, influences of anisotropic property ratio $E_{L}$/ $E_{T}$ on stress and displacement around propagating crack tip are studied in this paper. When M<0.55 and .alpha.=90.deg.(.alpha.; the angle of fiber direction with crack propagating direction, M; crack propagation velocity/shear stress wave velocity), the influence of $E_{L}$/ $E_{T}$ on stress .sigma.$_{x}$, .sigma.$_{y}$, .tau.$_{xy}$ and .sigma.$_{\theta}$ is the greast on .sigma.$_{y}$. Except M<0.55 and .alpha.=90.deg., it is the greast on .sigma.$_{x}$ in any situation. Increasing $E_{L}$/ $E_{T}$, stress components are increased or decreased. When maximum stress is based, the stress .sigma.$_{x}$(.alpha.=90.deg.), .sigma.$_{y}$(.alpha.=0.deg.) and .tau.$_{xy}$ (.alpha.=90.deg.) are decreased with increment of $E_{L}$/ $E_{T}$ in M=0. any stresses except .sigma.$_{*}$x/(.alpha.=0.deg.) are decreased with increment of $E_{L}$/ $E_{T}$ in M=0.9. When .alpha.=90.deg., the influence of $E_{L}$/ $E_{T}$ on displacement U and V is V>U in any velocities of crack propagation, when .alpha.=0.deg., it is VU in M>0.75 and when $E_{L}$/ $E_{T}$ is increased, U and V are decreased in any conditions.sed in any conditions.tions.tions.tions.

Effects of empathy and self-regulation capacities of paramedic students on clinical practice stress (응급구조학 전공학생의 공감능력, 자기조절능력이 임상실습스트레스에 미치는 영향)

  • Minchae, Kim;Junghee, Park;Hyowon, Choi;Jinyoung, Kim
    • The Korean Journal of Emergency Medical Services
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    • v.26 no.3
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    • pp.149-159
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    • 2022
  • Purpose: This study aimed to determine a method to reduce stress in clinical practice by identifying how the empathy and self-regulation capacities of paramedic students influence their stress levels. Methods: Selected articles were statistically analyzed using SPSS 21.0. Data on 172 3rd-year and 4th-year paramedic students in Daejeon were used. The subject's general characteristics (sex, university education, the number of the medical training center, work type, satisfaction with college life, and satisfaction with their major) were analyzed according to empathy and self-regulation ability by t-test and ANOVA. Pearson's correlation coefficient was used for the correlation of empathy, self-regulation ability, and clinical practice stress. Hierarchical regression was used for factors influencing clinical practice. Results: Clinical practice stress levels were significantly different between general characteristics of sex (t=3.002, p=0.003), university education (t=2.815, p=0.006), the number of the medical training center (t=-2.998, p=0.003), work type (t=-2.998, p=0.003), satisfaction with college life (t=5.280, p=0.000), and satisfaction with major (t=5.132, p=0.000). Empathy (r=-.520, p<.001) and self-regulation ability (r=-.330, p<.001) significantly negatively correlated with major variables, and the major factor influencing clinical practice stress levels was empathy. Conclusion: Extension of education and various experiences for improving empathy and developing management programs should be performed to decrease clinical practice stress on paramedic students.

The moderating effects of personality traits in relationship between SNS use and stress - focused on the Facebook adolescent users (SNS 사용과 스트레스의 관계에 미치는 이용자 성격의 조절효과 연구 - 페이스북 청소년 이용자를 중심으로)

  • Piao, Mei Ying;Jeong, Eui Jun
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • v.9 no.7
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    • pp.297-306
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    • 2019
  • This is a longitudinal study which aims to examine the effects of the use frequency of SNS on adolescents' stress and the relationship between the former and the latter, based on big five personality factors. To this end, the valid data of 994 adolescents were collected by administering questionnaires to the cohort groups of those using Facebook twice for one year(T1-T2). An analysis of the data showed that the use frequency of Facebook(T1) had no direct effects on stress(T2), and that there was an interaction between users' personality and the use frequency. In particular, users' stress(T2) was varied depending on neuroticism among personality factors, as the use frequency of Facebook(T1) increased. The higher the use frequency of Facebook, the more the stress in the group with weak neuroticism, while the higher the use frequency of Facebook, the less the stress in other group with strong neuroticism, probably because each group has different motivation for meeting their needs for social support: the former's stress may increase, since they has relatively lower needs for social support and face more conflicts as they more frequently use Facebook, while the latter's stress may decrease, because they have relatively stronger needs for social support and are likely to acquire psychological support, as they more frequently use it.

The Effect of ASMR on Anxiety, Stress, Sleep quality in University Students (ASMR이 대학생의 불안, 스트레스, 수면의 질에 미치는 영향)

  • Park, Sun-A;Lim, Hee Su
    • The Journal of the Convergence on Culture Technology
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    • v.8 no.2
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    • pp.321-327
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    • 2022
  • Purpose: This study aims to understand the effects of ASMR(The Autonomous Sensory Meridian Response) intervention on university students' anxiety, stress and sleep quality. Method: This study was designed as a One-group pretest-posttest design to measure the effect of ASMR on university students' anxiety, stress and sleep quality. Among university students in the Seoul metropolitan area, 30 students who agreed to the study were selected. Data analysis was performed using SPSS for window version 23.0. Results: The experimental group that provided ASMR intervention showed statistically significant results in levels of anxiety and stress. After ASMR intervention, the experimental group showed statistically significant effects on anxiety(t=5.12, p<.001) (t=5.15, p<.001), stress(t=5.13, p<.001)and sleep quality(t=7.34, p<.001). Conclusion: This study confirms that ASMR has a positive effect on anxiety, stress and sleep quality of university students. Based on these results, it is expected that further research will be conducted on scientific and differentiated ASMR mediation.

A Study on Relationship between Stress of Clinical Practice and Clinical Competency in Nursing Students (간호학생의 임상실습 스트레스와 임상수행능력과의 관계 연구)

  • Kim Hye Suk
    • Journal of Korean Public Health Nursing
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    • v.16 no.1
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    • pp.64-76
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    • 2002
  • This study was performed to identify the level of stress of clinical practice and clinical competency and the relationships between stress of clinical practice and clinical competency in nursing students. The subjects of this study were 379 senior nursing students in 2 nursing colleges in M city. The data were collected from November 5th to 24th, 2000, using questionnaire. The instruments used were the Stress of Clinical Practice Scale and the Clinical Competency Measurement Tool. The data were analyzed using frequency, percentage, t-test, ANOVA, and Pearson's Correlation Coefficient, using the SPSS program. The results of the study were as follows : 1. The mean score for the level of stress of clinical practice was 3.83 points. The stress of clinical practice were classified into six dimensions and their order of getting score was nurse(3.99), relationship between nursing theory and practice(3.94), human relationship (3.92), clinical education and evaluation by professors(3.87), environment(3.70), and patient(3.59). 2. The mean score for the level of clinical competency was 3.91 points. The clinical competency were classified into five dimensions and their order of getting score was professional development (4.08), skills (4.06) , interpersonal relationship/communication(3.95), teaching/coordinating(3.81), and nursing process(3.70), 3. The stress of clinical practice showed significant difference in the score of grade(t=-2.82, p=.005), interpersonal relationship(t=1.97, p=.049) and satisfaction of major(F=3.38, p=.035) of nursing students. 4. The clinical competency showed significant difference in the score of grade(t=-5.97, p=.000). interpersonal relationship(t=3.64, p=.000) and satisfaction of major(F=8.73, p=.000) of nursing students. 5. The data showed the positive correlations between stress of clinical practice and clinical competency(r=.209, p=.000). In conclusion. this study found that the stress of clinical practice was significantly related to clinical competency in nursing students. Therefore further study is needed to examine the efficient coping strategies about stress of clinical practice in nursing students.

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Differences in Job Stress by Occupation Before and After the Reaction to COVID-19 among Care Facility for the Elderly (요양시설 종사자의 코로나 19 대응 전·후 직종별 직무스트레스 차이)

  • Oh, Doonam;Kim, Jungjae
    • Journal of the Korea Convergence Society
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    • v.13 no.4
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    • pp.531-540
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    • 2022
  • This study is a descriptive survey study attempted to find out the difference in stress by occupation before and after responding to COVID-19 among care facility for the elderly. In this study, a survey was conducted on workers in care facility for the elderly in Chungcheongnam-do and Gyeonggi-do from March 22 to April 25, 2021. Of a total of 220 questionnaires, 206 were collected, and the data were analyzed through t-test, one way ANOVA, and chi-square test. According to the research results, the difference in the sub-areas of job stress before and after the COVID-19 response of nursing home workers shows that nurses have job demands(t=-3.90, p<.001), job instablity(t=-3.30, p=.002), the nursing assistant has job demands(t=-2.45, p=.018), nursing care workers have job autonomy(t=-3.34, p=.001) showed a significant difference. Therefore, in order to effectively solve job stress according to the occupation of workers in care facility for the elderly in the COVID-19 era, stress relief programs for each occupation must be customized.

Duty-related incidental stress and the coping method in new firefighters (신임 소방대원의 직무관련 출동 스트레스와 대처)

  • Baek, Mi-Lye
    • The Korean Journal of Emergency Medical Services
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    • v.18 no.3
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    • pp.53-62
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    • 2014
  • Purpose: This study aimed to investigate duty-related incidental stress, coping method, and stress factors in 133 new firefighters. Methods: A self-reported questionnaire was administrated to 133 new firefighters between April and May 2010. It consisted of 33 and 62 items concerning duty-related incident stress and coping methods, respectively. Data were analyzed by using the t-test, analysis of variance, Pearson correlation coefficient analysis, and multiple regression analysis. Results: New firefighters experienced the most stress when inappropriately dispatched. Duty-related incidental stress correlated with active (r = .420, p < .001) and passive coping (r = .450, p < .001). Also active coping statistically correlated with passive coping (r = .890, p < .001). Influencing factors of duty-related incidental stress were passive coping (t = 2.12, p < .05), experience of having a co-worker in a dangerous situation (t = 3.30, p < .001), having less than 6 months of work experience (t = 2.30, p < .05), and experience of having oneself in a dangerous situation (t = 2.05, p < .05). Conclusion: New firefighters need to be provided with training on active coping to prevent posttraumatic stress disorders and, social support immediately after an inappropriate and stressful dispatch.