肾肿解毒灵缓解蛋鸡热应激效果的观察

在热应激条件下 ,于蛋鸡饲料中添加不同浓度 ( 0 .2 %、0 .3%、0 .4 %、0 .5% )的肾肿解毒灵药 ,结果表明 :添加剂量为 0 .4 %的肾肿解毒灵缓解蛋鸡热应激效果最好 ,可提高产蛋率 13.15% ,平均蛋重增加 2 .0 4g ,同时能降低料蛋比 ,增强鸡只食欲     

Maux du travail : dégradation, recomposition ou illusion ?

In recent years, the attention of French public opinion has been focused on the noxious effects of new ways of organizing work. Stress, “suffering”, burnout, psychosocial risks and suicides are topics that have brought experts, the media and politicians into action. What do the social sciences have to say about this? Among the several reactions presented, the principal contrast arises between those who analyze the ills of work as “social constructions” and those who see them as the implications of a trend toward intensifying job-related activities.     

Building Resilience in Social Workers: An Exploratory Study on the Impacts of a Mindfulness-based Intervention

Burnout is a frequent and well-documented consequence of social work practice. The literature suggests that mindfulness-based interventions might help develop the mental states and emotional skills that are indicators of resilience. This mixed-methods, non-randomised controlled, exploratory study with 14 social workers in Canada investigated differences in social workers’ levels of stress, resilience, and burnout after a mindfulness-based intervention, compared to a waitlist group. The intervention group was also interviewed about changes in their relationships within the workplace, their perceived sense of mental health, and wellbeing. Results suggested that the mindfulness-based intervention significantly decreased the treatment group’s perceived stress compared to those on the waitlist and continued to decline for 26 weeks post-intervention. Intervention participants reported positive changes in attitudes, perspectives, behaviours, and energy in relation to their workplace relationships with peers and supervisors. Mindfulness-based interventions for reducing stress and building resilience to burnout in social workers and other helping professionals hold promise, and invite further research.     

How stressful are economic competitions in the lab? An investigation with physiological measures

Competition is ubiquitous in economic life. Yet, negative consequences of competitive environments have been reported and everyday experience suggests that competitive situations can be very stressful. It is, however, an open question whether or not economic competitions in the laboratory indeed elicit physiological stress reactions. Our study examined subjectively perceived stress and physiological changes induced by a well-established economic laboratory competition paradigm (first used in Niederle & Vesterlund, 2007) in a mixed-gender sample of 111 healthy participants. A mental arithmetic task was performed first under a piece rate (i.e., non-competitive) payment scheme and afterwards under a tournament condition. In a third round, participants decided how to be paid (i.e., piece rate or tournament). Our results indicate that compared to a control group, which performed only the non-competitive condition, the competitive game condition elicited subjective and physiological reactions that are indicative of mild stress, i.e., an increase in heart rate and a decrease of calmness and mood. Furthermore, reactions that are thought to reflect an active coping style were related to the self-selection into competition in the third round of the game. We speculate that real-life economic competitions might be even stronger stressors and the way how people cope with this kind of stress might be related to competitiveness in real-life economic contexts.     

Psychosocial predictors of health status

This prospective study examined, in a sample of male and female adults, the relationship between specific psychosocial factors and health status. Measures of stress, health habits, social support, Type A behaviour, and coping style were collected for 203 professional employees in a large aerospace organization in 1988. One year later a follow-up questionnaire assessing self-reported physical illness and job burn-out was administered resulting in a final sample of 95 employees. When adjustments for age, sex, education, and initial psychological well-being were made, perceived stress, physical exercise, and an avoidant coping style significantly contributed to predictions of physical illness in multiple regression analyses. Employees who possessed less hardy appraisals of work/life and expressed greater Type A behaviour reported significantly more fatigue and exhaustion one year later. Type A individuals also reported being significantly less sensitive and caring towards others. Finally, individuals who perceived less stress and expressed more cognitive hardiness reported significantly greater work/life satisfaction. Overall, the data supported the view that psychosocial factors may be differentially associated with diverse physical and psychological health outcomes.     

The effects of fitness training on the physiological stress response

The favourable psychological and physiological profile found in fit sportsmen does not necessarily follow from their exercise behaviour. Alternatively it may depend on endowment and/or self-selection. In that case, participation in regular exercise may not always result in a reduction of susceptibility to stress. The present article reviews several well-controlled laboratory studies that have directly examined the effect of fitness training programmes on the physiological responses to a set of standardized stressors. It was generally expected that fitness training would enhance psychological stress resistance and thus mitigate the physiological response to stress. The results of most studies belie these expectations. Intensive training programmes of up to 8 months do not change stress reactivity, even if initially low fit and high stress-reactive subjects are used. The failure to find a training effect on the intensity of the stress reactions in laboratory studies does not rule out possible psychosocial effects of regular exercise on the frequency and duration of the stress reactions in real-life situations. Furthermore, although the dynamics of the physiological response to stress are not changed, there is a clear downward shift in the overall level of heart rate and blood pressure in stressful situations. Several possible mechanisms are suggested by which these training effects may help us to deal with work stress without suffering health problems.     

Sources of occupational stress in the police

This paper describes an empirical study (n = 954) of occupational stress conducted in a large provincial English police force. Conceptual distinctions were made between stressors, i.e., potential external sources of adverse reactions; felt stress, i.e., self-perceived negative impact; and distress, i.e., self-reported symptoms of anxiety, depression, social dysfunction, and somatic disturbance. Findings indicates that overall exposure rates are highest for organizational and management stressors rather than routine operational duties. Differential rates of exposure, felt stress, and distress are reported for different ranks of officers. The paper confirms the nature of postulated sources of police stress from earlier studies and extends analysis to differentiate between exposure to stressors and experience of distress.     

课程改革中的工作压力：个人-环境匹配模式的分析

教师工作压力是影响课程改革顺利进行的重要因素之一.从个人-环境匹配的观点,对课程改革中教师的工作压力进行了探讨.在要求-能力匹配方面,教师的课程能力、教育教学能力、人际关系的协调、行动研究以及变革适应能力与课程改革的要求不匹配导致了教师工作压力;而在资源-需求匹配方面,培训与进修、评价机制与升学主义的影响、行政支持、工作负荷与时间压力、课程资源这些外界环境及学校提供的资源与教师需求不匹配也给教师带来了工作压力.     

Stress, social support, and psychological and physical wellbeing in secondary school teachers

In order to evaluate the relationship between stress and social support, on the one hand, and indices of psychological and physical health, on the other, questionnaires were administered to 120 secondary school teachers. Full data were retrieved from 88 teachers, a response rate of 73%. Bivariate correlational analysis revealed associations between life stress and job stress and a variety of General Health Questionnaire measures of psychological wellbeing. Job stress was also correlated with self-reported short-term sickness absences from work. Social support measures were not. in the main, predictive of psychological health outcome measures. In contrast, neither stress nor social support measures were related to self-reported physical health problems or long-term sickness absences. It would appear that self-reported stress is largely associated with psychological wellbeing, and is not substantially related to indices of physical wellbeing. The former relationship does not appear to be substantially mediated by social support, and may be reflective of a general plaintive set.     

一个不该忽视的社团——狂飙社研究的意义

狂飙社是20世纪20年代中后期的一个重要文学社团,由于多种原因,狂飙社成员的作品长期以来不受人们重视,人们对此了解甚少并充满误解。加大狂飙社成员作品的出版及研究力度的意义在于:有助于丰富并完善中国现代文学史;为中国现代文学研究提供一个独特的案例;有助于当代中国人正确认识自己及中国的过去、现在和未来。