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171.
172.
This article draws on institutional and ecological perspectives on work and organizations to develop a workplace level model of variation in voluntary counselor turnover rates across privately funded substance abuse treatment centers in the United States. Results show that participatory management structures reduce turnover rates principally by promoting organizational commitment. The analysis also tests hypotheses regarding the effects on turnover rates of other relevant theoretic domains of treatment center structure and organization. We discuss theoretical implications of the findings and suggest directions for future research.  相似文献   
173.
Research on income and subjective well-being shows that among the non-poor, increased income has little or no lasting impact on happiness. Yet the desire for more income remains a powerful motive among many people at all income levels. Is this simply because many people are misinformed and believe that higher incomes will make them happier, or are they motivated by something other than the pursuit of happiness? This paper argues for the latter. The paper begins by exploring this question, reviewing the literature on income and subjective well-being, and discussing of the role of utility in decision making. This paper then argues that three main factors lead us to value increased income even if it does not make us happier. First, happiness is just one value among many, and not the only conscious goal people set for themselves. Second, even when people are striving to maximize happiness, our tendency to overweight short-term payoffs leads us to overvalue the short-term rewards that income provides. Finally, I argue that our values-based decision making competes with other motivational systems and evolutionary drives. Three evolutionary desires are discussed: (1) to store resources, (2) to be sexually attractive, and (3) to manage our social relationships and our personal identity within those relationships. While all three motivations play a role in our desire for increased income, this paper argues that it is the third – the use of money and consumption as a social tool – that has the most important overall influence on our desire for increased income past the point where it ceases to increase personal happiness.  相似文献   
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Human skin burns with prolonged exposure to ultraviolet light. This simple physiological process acquires meaning through social interaction—whereby tanned skin assumes symbolic and semiotic properties. In this article we examine the meanings of tanned skin by focusing on the semiotic seductive power of the tanned body. Drawing from forty qualititative interviews, we examine the motives, beliefs, and experiences of people who tan their skin artificially, that is, through exposure to tanning lamps, in order to understand how tanned skin assumes meaning for them. We analyze the practice of artificial tanning and the interplay among processes of seduction, impression management, self‐expression, and the construction, exchange, and interpretation of embodied sign‐values.  相似文献   
176.
Racial distinctions in the United States have long been characterized as uniquely rigid and governed by strict rules of descent, particularly along the black-white boundary. This is often contrasted with countries, such as Brazil, that recognize “mixed” or intermediate racial categories and allow for more fluidity or ambiguity in racial classification. Recently released longitudinal data from the IPUMS Linked Representative Samples, and the brief inclusion of a “mulatto” category in the U.S. Census, allow us to subject this generally accepted wisdom to empirical test for the 1870–1920 period. We find substantial fluidity in black-mulatto classification between censuses—including notable “downward” racial mobility. Using person fixed-effects models, we also find evidence that among Southern men, the likelihood of being classified as mulatto was related to intercensal changes in occupational status. These findings have implications for studies of race and inequality in the United States, cross-national research on racial classification schemes in the Americas, and for how demographers collect and interpret racial data.  相似文献   
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Urban lakes are often monitored and managed with limited consideration of adjacent communities. Generally, when communities are considered in relation to urban lakes, they are viewed simply as sources of pollutants. Given the inevitable interactions between an urban lake and the surrounding inhabitants, the community must be considered explicitly when assessing the ecosystem health of urban lakes, as the two entities intrinsically comprise interrelated parts of a single ecosystem. In this study, the reciprocal links between a residential community and a series of urban lakes in South East Queensland have been examined to facilitate a dynamically linked, fully integrated ecosystem health assessment of constructed urban lakes. Residents’ attitudes towards, and values derived from, a series of urban lakes were surveyed, as well as residents’ behaviours which may impact upon urban lake health. The results indicate that residents derive both tangible and intangible benefits from the urban lakes, but feel little responsibility for lake health or custodianship over the lakes. Greater recognition within urban lake management frameworks of the links between urban lake systems and their surrounding communities may help to foster and enhance both community well-being, a greater sense of custodianship for such systems and improved management.  相似文献   
179.
The political, social and academic attention on migrant workers in China has been focused on the full-time worker while those who seek part-time work are rarely studied. We explore the effect of part-time day-labour employment of older migrants in an odd-job market in Linyi City. The medical, housing needs and available services for them are analysed. The Linyi government pioneered a program providing comprehensive services to part-time migrant workers, allowing this study to explore the strengths and weakness of the model. Building the appropriate social service industry competencies demands a joint effort from the government, community, organizations, researchers and enterprises.  相似文献   
180.
Recurrent events are commonly encountered in the natural sciences, engineering, and medicine. The theory of renewal and regenerative processes provides an elegant mathematical foundation for idealized recurrent event processes. In real-world applications, however, the contexts tend to be complicated by a variety of practical intricacies, including observation schemes with different phase and data structures. This paper formulates a recurrent event process as a succession of independent and identically distributed first hitting times for a Wiener sample path as it passes through successive equally-spaced levels. We develop exact mathematical results for statistical inferences based on several observation schemes that include observation initiated at a renewal point, observation of a stationary process over a finite window, and other variants. We also consider inferences drawn from different data structures, including gap times between renewal points (or fragments thereof) and counts of renewal events occurring within an observation window. We explore the precision of estimates using simulated scenarios and develop empirical regression functions for planning the sample size of a recurrent event study. We demonstrate our results using data from a clinical trial for chronic obstructive pulmonary disease in which the recurrent events are successive exacerbations of the condition. The case study demonstrates how covariates can be incorporated into the analysis using threshold regression.  相似文献   
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