首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 15 毫秒
1.
The current research provides guidance on the prevention and mitigation of dust explosion using a Quantitative Risk Management Framework (QRMF). Using concepts drawn from previous studies, the framework consists of three main steps: (i) a new combined safety management protocol, (ii) the use of DESC (Dust Explosion Simulation Code) and FTA (Fault Tree Analysis) to assess explosion consequences and likelihood, respectively, and (iii) application of the hierarchy of controls (inherent, engineered and procedural safety). QRMF assessment of an industrial case study showed that the original process was at high risk. DESC simulations and Probit equations determined the destructive percentages. FTAs revealed high probabilities of explosion occurrence; in addition, detailed individual and societal risks calculations were made, before and after the framework was applied. Based on the hierarchy of controls technique, the framework showed significant risk reduction to the point where the residual risk was acceptable for the process.  相似文献   

2.
This study examined the state of being recovered in the morning (i.e., feeling physically and mentally refreshed) as a predictor of daily job performance and daily compensatory effort at work. Ninety‐nine employees from public service organizations completed a general survey and two daily surveys on pocket computers over the course of one workweek. Hierarchical linear modeling showed that being recovered in the morning was positively related to daily task performance, personal initiative, and organizational citizenship behavior and negatively related to daily compensatory effort at work. Relationships between the state of being recovered and day‐specific job performance were moderated by job control. For persons with a high level of job control, the relationship between being recovered and daily performance was stronger. Copyright © 2008 John Wiley & Sons, Ltd.  相似文献   

3.
This paper reviews empirical evidence on psychological detachment from work during nonwork time. Psychological detachment as a core recovery experience refers to refraining from job‐related activities and thoughts during nonwork time; it implies to mentally disengage from one's job while being away from work. Using the stressor‐detachment model as an organizing framework, we describe findings from between‐person and within‐person studies, relying on cross‐sectional, longitudinal, and daily‐diary designs. Overall, research shows that job stressors, particularly workload, predict low levels of psychological detachment. A lack of detachment in turn predicts high strain levels and poor individual well‐being (e.g., burnout and lower life satisfaction). Psychological detachment seems to be both a mediator and a moderator in the relationship between job stressors on the one hand and strain and poor well‐being on the other hand. We propose possible extensions of the stressor‐detachment model by suggesting moderator variables grounded in the transactional stress model. We further discuss avenues for future research and offer practical implications. Copyright © 2014 John Wiley & Sons, Ltd.  相似文献   

4.
This study aimed to test whether cognitively appraised level of job insecurity (job insecurity perceptions) and evaluative responses to a perceived level of job insecurity (job insecurity dissatisfaction and job insecurity behaviors) could relate differently to employee mental well-being, turnover intentions and on-the-job risk behavior. The significance of demographic characteristics (gender and age) as well as the implications of attitudinal variables (job satisfaction, job motivation and organizational commitment) and for the dependent variables was taken into account. Based on data from a self-completion questionnaire survey carried out among a representative sample of the Norwegian adult population (N = 260) results indicated that only job insecurity behaviors were indirectly related to turnover intentions and risk behavior via their impact on psychological well-being. The relative importance of the job insecurity dimensions for the dependent variables are discussed, as well as theoretical and practical implications.  相似文献   

5.
Because of the highly complex nature of chemical and nuclear accidents, efforts aimed at prevention, preparedness and response require the melding of many types of knowledge and the close collaboration of a wide range of professions. Nevertheless, the need for such integration and cooperation is not always strongly emphasized in university-level curricula. As a result, developing professionals have few opportunities to learn and practise unified models of environmental accident management. In an effort to foster a more integrative approach, the University of Alabama at Birmingham, USA, has launched the “Environmental Disasters” project. The project crosses disciplinary boundaries with respect to both curriculum and enrollment. In terms of curriculum, the project examines chemical and nuclear accidents from a multi-dimensional perspective, considering not only regulatory, scientific and policy issues, but also the public health, social, and psychological implications. In terms of enrollment, the project brings together students from the full range of fields that are involved with environmental accidents, including engineering, public health, public administration, social work, psychology, nursing, communications, medicine, and environmental studies. Emphasizing the need for a collaborative approach, students work in multi-disciplinary teams as they explore theory, case studies and current research. In addition, the student teams develop detailed plans for addressing the effects of a chemical or nuclear disaster. With environmental accidents representing an on-going threat to health and safety, the approach discussed in this article may provide a useful model for environmental disaster education at the university level.  相似文献   

6.
Intense interest in stress had led to a proliferation of coping measures. To aid researchers in choosing or developing coping measures applicable to job stress, this paper provides a conceptual evaluation framework. The framework serves to evaluate the extent to which coping measures are comprehensive (focus and method of coping) and specific (coping behaviors versus coping effectiveness, coping style, or coping resources; and stress management applications). Both theoretical and organizational stress management perspectives are incorporated.  相似文献   

7.
Based on interview studies, the unemployment literature suggests that last job satisfaction influences reactions to unemployment. This study assessed the quantitative relationship between last job satisfaction and the unemployment experience. Results do not support the literature's premise that high last job satisfaction predicts a negative reaction to unemployment. Copyright © 1999 John Wiley & Sons, Ltd.  相似文献   

8.
A review of past research revealed inconsistent findings concerning the relationship between job involvement and work-family conflict. This study tested whether family involvement moderates the relationship between job involvement and work-family conflict. Two types of family involvement (spouse and parent) and two types of work-family conflict (job-spouse and job-parent) were assessed. Data were gathered via questionnaire from a sample of nonteaching professionals employed by a large public university in the northeastern United States. As hypothesized, job involvement and job-spouse conflict were positively related for individuals high in spouse involvement and unrelated for individuals low in spouse involvement. Contrary to prediction, parental involvement did not moderate the relationship between job involvement and job-parent conflict. Instead, job involvement was positively related to job-parent conflict regardless of the level of parental involvement. Results are discussed in terms of standards for role performance and strength of role demands. Implications for future research are also discussed.  相似文献   

9.
In a recent discussion of the bandwidth–fidelity dilemma in personality measurement for personnel selection, Ones and Viswesvaran (1996) concluded that ‘broader and richer personality traits will have higher predictive validity than narrower traits’. In this paper, the arguments made by Ones and Viswesvaran in favor of the exclusive use of broad personality dimensions are discussed. New data are presented that contradict Ones and Viswesvaran's claim of the existence of a general, integrity-related personality factor, and that show two narrow measures—the Responsibility and Risk Taking scales of the Jackson Personality Inventory—to have higher validities than the Big Five dimensions with respect to job performance criteria based on self-reported workplace delinquency in a sample of 127 entry-level employees. © 1998 John Wiley & Sons, Ltd.  相似文献   

10.
We examine the effects of negative and positive industrial relations stress on both mood (negative and positive) and job satisfaction. Twenty industrial relations practitioners completed daily reports of industrial relations stress, mood, and job satisfaction over a 20-day period. After controlling for serial correlation, negative industrial relations stress affected negative mood and, in turn, job satisfaction. Positive industrial relations stress had direct effects on both positive mood and job satisfaction with positive mood also affecting job satisfaction. All effects were concurrent with no next-day effects of stress on mood or job satisfaction. Further research on industrial relations stress is both warranted and encouraged.  相似文献   

11.
Chemical enterprises are often challenged with efficiently assessing their operational staffing levels. Unbalanced and inadequate manning levels might be financially adversarial and may even lead to (minor and major) accidents. This paper provides a framework and a roadmap to assist chemical plants in assessing and evaluating their operational staffing levels. The approach can be implemented within the entire organization or within a part thereof (i.e., a business unit or an installation). As a part of the suggested approach, an instrument is provided for evaluating operational staffing levels as they currently exist within a chemical company, business unit, or installation.  相似文献   

12.
The literature on routinization of work is both ambiguous and equivocal when its impact on quality of working life is considered. The classical management literature suggests that routinization of work has a positive influence on individual performance and by implication on the quality of working life resulting from the overall prosperity generated. However, more recent literature on job characteristics and job design argues that routinization of work has a negative impact on individual performance as it suppresses creative expression on the job. This paper suggests that these mixed findings are due to an inadequate theoretical grasp of the concept of routinization and presents empirical evidence which attempts to clarify the ambiguity. Data were collected from 1148 nurses working in anglophone hospitals in the greater Montreal area in the form of a field survey questionnaire. The results indicated that nurses who worked routine shifts perceived higher levels of quality of working life compared to those on non-routine shifts. The results also indicated that nurses who experienced high routinization in job content perceived lower levels of quality of working life compared to those nurses who experienced low routinization in job content. Implications of these findings for future research are discussed.  相似文献   

13.
This study examined the relationship between age and job performance evaluations for newcomers recently hired into entry-level positions in public accounting firms. We predicted and found a negative relationship between age and job performance evaluations. This relationship was eliminated after controlling for undergraduate grade average and prior work experience, operationalized as the number of jobs that a newcomer had previously held. Results are discussed in terms of the possibility of negative age effects in entry-level positions and the potential reasons for such findings. © 1998 John Wiley & Sons, Ltd.  相似文献   

14.
The paper deals with the general approach and features of the computer image generation for job simulation (CIGJS) method, as specially developed to support the Job Safety Analysis (JSA) technique.Starting from some general considerations on the occupational safety and health statistical data collection in Italy, when compared to US methodology, the paper provides an overview of the CIGJS method, developed to improve the effectiveness and usability of the traditional JSA.A case study is discussed in order to highlight how CIGJS makes the use of the JSA technique possible also at the design stage (this being fundamental according to a Prevention through Design approach), and allows to control the effectiveness of the adopted countermeasures.The application of the method complies with the basic European Directives requirements both on workers’ safety and health and on machinery analysis.Furthermore, CIGJS may substantially aid workers’ education and training, to the point of being a possible simulation-training device.  相似文献   

15.
Very little research has examined the safety expectations of new recruits, particularly those of individuals about to enter full-time work for the first time. There is evidence that new recruits have proportionally more accidents in the first period of their employment. One possible explanation for this is that the safety expectations of new recruits do not match the reality of the workplace they are about to enter. In Study 1 data on workplace safety expectations were collected from 142 final year high school students from six schools. Study 2 collected data from 40 organizations on the safety expectations of a new recruit and compared it with safety expectation data from a manager of the job they were entering. Both studies found that new recruit safety expectations were significantly correlated with ratings of safety specific trust in co-workers and management. Study 2 found that new recruits safety expectation scores were significantly higher than those given by managers. The results suggest that organizations need to develop a clear safety-specific psychological contract with new recruits.  相似文献   

16.
Introduction. Based on the literature, the ergonomic saddle chair provides the most appropriate posture for users. Determination of the seat height is critical to establish the proper posture, carried out using various methods of anthropometry. This study aimed to develop a simple and applied method for determining the saddle seat height with an emphasis on appropriate posture. Methods. In this study, anthropometric dimensions including weight, body height, popliteal height and seat height at 135° knee angle in 150 male and female dentists were measured. In the laboratory, to determine the ‘acetabuloischial number’, 25 male and female natural hip bones were measured. The mean saddle-chair height with knee angle of 135° was then compared by two different methods, field measurement and the new calculation method. Results. The results showed a strong correlation between data gathered from the two different methods, the field measurement and the new calculation method (98%), and Cronbach’s α from the intraclass correlation was equal to 0.994 (p?<?0.05). This indicated that the two methods produced similar results. Conclusion. The new method can be applied to calculate the optimal height of the saddle seat based on body height and popliteal height.  相似文献   

17.
Using structural equations, we estimated the relationship between employees' experiences of seven job conditions, that have been identified as potential job stressors, and psychological distress in a random sample of 504 full-time employed men and women in dual-earner couples. The seven job conditions were: skill discretion, decision authority, schedule control, job demands, pay adequacy, job security, and relations with supervisor. We found that two job conditions — skill discretion and job demands — were related to psychological distress, whereas five other conditions were not. These findings lend partial support to Karasek's job demand — job control model. In our analysis, skill discretion, one of the two components of job control (referred to jointly as decision latitude) was related to distress, however, decision authority, the second component, was not. A third aspect of control, schedule control, was also unrelated to distress. For full-time employed women and men in dual-earner couples, the additive effects of feeling concerned about having to do dull, monotonous work and having to work under pressure of time and conflicting demands were associated with psychological distress. Finally, the magnitude of the relationships between these job experiences and psychological distress did not differ between men and women.  相似文献   

18.
PROBLEM: Injuries resulting from lifting are costly, and create significant pain and discomfort. While engineering controls are the most effective means of reducing risks, most organizations continue to rely on manual lifting techniques. The problem, however, is that the use of safe-lifting techniques is inconsistent and managers have a difficult time motivating use of these techniques. Consequently, it is important to understand the factors driving safe-lifting behaviors. METHODS: This study used a survey to apply the theory of planned behavior (Ajzen., I., 1991. The theory of planned behavior. Organization Behavior and Human Processes, 50, 179-211) to safe-lifting among 136 materials management employees at a heavy manufacturing organization. Structural equation modeling and factor analysis were employed to analyze relationships among constructs. RESULTS: Results revealed that perceived behavioral control and intention were the strongest predictors of safe-lifting behavior. Subjective norms, to a lesser degree, were also important influences on intention. Attitudes did not surface as effective direct predictors of safe-lifting behavior, but did affect behavior and intent via mediating factors (subjective norms and perceived behavioral control). Finally, the theory of planned behavior was supported as an effective model explaining safe-lifting behavior, and had potential application for many other safety-related behaviors. IMPACT ON INDUSTRY: Results from this study emphasize the importance of perceived behavioral control as a factor associated with safety-related behavior.  相似文献   

19.
Psychosocial safety climate is an emerging construct that refers to shared perceptions regarding policies, practices, and procedures for the protection of worker psychological health and safety. The purpose of the research was to: (1) demonstrate that psychosocial safety climate is a construct distinct from related climate measures (i.e., physical safety climate, team psychological safety, and perceived organizational support); and (2) test the proposition that organizational psychosocial safety climate determines work conditions (i.e., job demands) and subsequently worker psychological health. We used samples from two different cultures; an Australian sample (= 126 workers in 16 teams within a primary health care organization) and a Malaysian sample (= 180 workers in 31 teams from different organizations and diverse industries). In both samples confirmatory factor analysis verified that psychosocial safety climate is a construct distinct from related climate measures. Using hierarchical linear modeling, psychosocial safety climate was superior to other team level climate measures in its negative relationship to both job demands and psychological health problems. Results supported a mediation process, psychosocial safety climate → job demands → psychological health problems, corroborating psychosocial safety climate as a preeminent stress risk factor, and an efficient target for intervention. We found both physical and psychosocial safety climates were stronger in the Australian, compared with the Malaysian work context. Levels of psychosocial safety climate were significantly lower than those of physical safety climate in both countries indicating a ‘universal’ lack of attention to workplace psychological health.  相似文献   

20.
A laboratory experiment was conducted to investigate the role of three possible mediating variables (job attitude, job knowledge, and job acceptance intention) to explain the effects of realistic job previews (RJPs) on entry-level outcomes. In addition, the effectiveness of an oral realistic job preview presented by an employment interviewer was compared to a written RJP. Sixty undergraduate student volunteers were randomly assigned to one of three conditions: (1) an oral RJP presented to job applicants by the employment interviewer during an employment interview; (2) a written RJP given to job applicants to read before an employment interview; and (3) a control condition in which job applicants received general job information from the interviewer during an employment interview. Results indicated that knowledge was an important mediator of RJP effects on several entry-level outcomes whereas attitude and job acceptance intention did not mediate RJP effects although both were strongly related to job acceptance decisions. In addition, the oral RJP was more effective than both the written RJP and general job information in creating positive preceptions of interviewer and organization honesty. Both the oral and the written RJP lowered subjects' job expectations and increased role clarity in comparison to the control group but did not affect job acceptance or commitment to job choice. The implications for future RJP research and application are discussed.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号