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81.
This study surveyed 747 firefighters on their perceptions of work stress. The current emphasis in the fire brigades is on the management of traumatic or critical incident stress, but other work stressors may also be important. The firefighters rated their jobs as more stressful than other occupations, and psychological work stress as highest among a set of potential sources and types of stress. Although many factors were mentioned, the most frequently indicated stressors were associated with exposure to traumatic incidents such as major accidents or the suffering of others. Those who had previous experience with stress were more likely to rate current and future risk of stress as higher. Knowledge of existing organizational approaches to stress management was limited. The firefighters rated individual and informal sessions for dealing with stress as potentially more useful than the formal debriefing sessions now common in many emergency organizatins. Those who had previous experience with stress, however, were more likely to favour a formal organizational approach.  相似文献   
82.
Across a variety of clinical settings, repeated measurements on an individual, obtained under identical circumstances, often differ from one another. This implies the measurements lack perfect reproducibility. Topics related to reproducibility of clinical measurements are introduced in this paper. In this first of two parts, continuous outcomes are addressed. The intraclass correlation coefficient, ρ, has been the traditional coefficient of reproducibility for continuous outcomes. The importance of ρ regarding observations on an individual, and observations among populations, is outlined. Estimation and inferential procedures for ρ are reviewed and worked examples are provided. Copyright © 2004 John Wiley & Sons, Ltd.  相似文献   
83.
The authors consider the problem of estimating the density g of independent and identically distributed variables XI, from a sample Z1,… Zn such that ZI = XI + σ? for i = 1,…, n, and E is noise independent of X, with σ? having a known distribution. They present a model selection procedure allowing one to construct an adaptive estimator of g and to find nonasymptotic risk bounds. The estimator achieves the minimax rate of convergence, in most cases where lower bounds are available. A simulation study gives an illustration of the good practical performance of the method.  相似文献   
84.
85.
The asymptotic relative efficiency of Kendall's and Spearman's coefficients of rank correlation are considered for samples from a bivariate normal distribution and comments are made on the calculation of their variances. For large samples it is suggested that one should use mean values of the coefficients calculated by splitting the sample into a fairly large number of smaller samples. This reduces the amount of calculation required and the asymptotic relative efficiency of this procedure is found both for ρ= 0 and ρ≠ 0.  相似文献   
86.
Migration and multiculturalism are key topics in politics, in the media, in education and in the social sciences. It is a phenomenon that has been discussed again and again during the last fifteen years with the aim to find solutions. A theoretical set of points of consideration is established in the first chapter in order to understand how migration is running counter to the ‘normal’ condition and development of society, and tends to cause problems in various contexts. Case histories in the second chapter show how communities are handling the consequences of immigration in practice and in the framework of the specific prevailing national and welfare state structures, and especially how communities are meeting the challenge politically and with their system of social services. In the final chapter the most important findings are summarized.  相似文献   
87.
From a radical-critical perspective, the gap between the everyday world as experienced and the sociological world as theorized is nowhere so apparent as in the area of human sexuality. Conventional research on human sexuality appears atheoretical, ahistorical, and reductionistic. The viability of a radical-critical alternative is demonstrated with examples of research and theory in three sub-areas: (1) sexuality as identity (socialization approach); (2) sexuality as ideology (comparative and historical approach); and (3) sexuality as power (political-economic approach). The paper discusses three distinguishing characteristics of the radical-critical perspective. The approach: (1) is holistic and historical; (2) urges theoretical explanation for each topic of sexuality under investigation; and (3) offers a critical evaluation of thestatus quo and calls for radical change.  相似文献   
88.
The greatest burden of economic recession falls on the unemployed. Research in this area has resulted in a general consensus that the large majority of the unemployed are psychologically impaired. From the voluminous relevant literature, three conceptual issues are singled out for discussion: the research style—that is, the dominant questions investigated and the corresponding research procedures; explanations for the mental state of the unemployed and the role of theory; and the concept of mental health as involving more than the absence of mental illness.  相似文献   
89.
Religious ministry, theology, and even the study of religion in history and sociology have been done for so long from a male point of view that the burgeoning activity and reflection of women scholars and activists are not yet researched or deliberated when male scholars define the parameters for interpretation and name the problems as they perceive them. Current scholarship is sadly lacking in its address of modern problems in religious perspective, especially as attempts are made to understand the new pressures on population and institutions.  相似文献   
90.
In eighteen months, one man with a second-hand utility, two worn lawn mowers, community and employer support, resulted in over sixty-eight ‘unemployable’ youth entering the workforce on a permanent basis. Clive's program is unique to Australia. (It was considered that anonymity should be maintained because adverse publicity resulted in youth programs in the area being closely scrutinized regarding participants ‘working’ and earning money.—Ed.)  相似文献   
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