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251.
Mitigating human‐induced climate change calls for a globalized change of consciousness and practice. These global challenges also demand a double transformation of the social sciences – first, from ‘methodological nationalism’ to ‘methodological cosmopolitanism’ and, second, an empirical reorientation towards ‘cosmopolitization’ as the social force of emerging cosmopolitan realities. One of these realities is the possible emergence, locally and globally, of ‘cosmopolitan communities of climate risk’ in response to a ‘world at risk’. A key research question for contemporary social science is thus: how and where are new cosmopolitan communities of climate risk being imagined and realized? In this article, we propose and explore a research agenda formulated around this key question. We both develop a theoretical perspective and provide short empirical illustrations of case studies regarding ongoing research in Europe and East Asia on such cosmopolitan climate risk communities.  相似文献   
252.
Abstract In this article, I assess how a transnational campaign against the slave trade developed in the eighteenth century, focusing on the seminal role of Quakers. Building on Keck and Sikkink's study of the international campaign against slavery in America in the mid‐nineteenth century, I show how one can identify transnational advocacy on this issue more than half a century earlier. I examine the features of Quakerism ‐ specifically the close links between American and English Quakers ‐and the historical circumstances that gave rise to the campaign. In particular, I assess the role of transatlantic correspondence and travel among individual Quakers and the close organizational links between the society's branches on either side of the Atlantic. I analyse the development of anti‐slave trade activism according to Khagram, Riker and Sikkink's model of network development and find that this model is broadly applicable. I note, however, the change within the campaign from truly transnational (transatlantic) to predominantly domestic (British) as it changed from a coalition to a broader social movement, and as the campaign began to interact with the state, thus suggesting that the development of transnational networks is neither linear nor inevitable.  相似文献   
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254.
Summary The concept of agency function is examined in relation to thenature of the social work task. It is often the case that agencyfunction is seen more as a problem for social work and not asone of its characteristics. It is argued in this paper thatthe agency itself is not responsible for the apparently delicatestate of present day social work, but that on the contrary,the failure to appreciate social work's relationship to societyand social processes in part accounts for its uncertain condition.  相似文献   
255.
We report results from laboratory experiments designed to examine statistical discrimination. Our design expands upon existing research by generating data both on wage contracts and unemployment rates of directly competing worker groups. We find some evidence for statistical wage discrimination against workers having an identical expected productivity but a higher productivity variance. However, those same subjects are less likely to be unemployed, suggesting that our employer‐subjects view hiring choice and wage contracts as substitutable. A clear implication is that field data discrimination estimates based on wages alone may overestimate the true impact of such discrimination. (JEL C90, J71)  相似文献   
256.
This paper empirically investigates the effect of advanced manufacturing technology on process stability during flexible production in a process industry. A sample of 61 North American fine paper plants is used to examine the relationship between the level of automation installed for controlling changes between paper grades and the incidence of paper web breaks. These web breaks are catastrophic failures; they require the entire plant to be stopped, reinitialized, and restarted. Because a large fraction of breaks occurs shortly after changeovers, they are an important determinant of the aspect of plant flexibility, called mobility, or the ability to move between products with only small penalties. In an attempt to ensure stable and mobile production, many plants have implemented changeover automation. We find, however, that higher levels of this automation are significantly associated with higher rates of catastrophic failure among the plants studied. We suggest that this finding becomes less paradoxical when considered in light of a recent stream of research on advanced manufacturing technologies, loosely called the usability perspective. According to this perspective, automation designed and implemented with the narrow, technical goal of replacing human operators or removing their discretion over a production process is misguided, especially in environments in which requirements are changing rapidly.  相似文献   
257.
Work flows in a job shop are influenced by the load per release and time interval between release factors. We focus on the latter factor, job release times. Building on Elvers' work, this study evaluates the impact of different job release time distributions on shop performance. Using a computer simulation of a random job shop and a full factorial experimental design, we demonstrate that the type of distribution does affect performance–a finding consistent with results from job shops characterized by good shop floor control practices. These findings are explained by examining the shape and variance traits of the underlying job release time distributions.  相似文献   
258.
We formulate a general sequencing problem that includes two classes of jobs with setup times, setup costs, holding costs, and deadlines. The formulation is unique in its explicit recognition of the opportunities to exploit productive capacity increases due to batching. An algorithm based on tabu search is then used as a solution method. Computational results are presented that suggest that the algorithm is effective.  相似文献   
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