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1.
The immaturity of the evidence base in some areas of child welfare practice demands that practitioners approach the development and refinement of practice in a systematic way that explicitly seeks to build on and learn from experience. The efforts of public child welfare agencies in Boston and Cleveland show that it is possible to draw on a broader base of knowledge and experience while responding to unique conditions and circumstances in each agency's community.  相似文献   
2.
Data from field operations of a system is often used to estimate the reliability of components. Under ideal circumstances, this system field data contains the time to failure along with information on the exact component responsible for the system failure. However, in many cases, the exact component causing the failure of the system cannot be identified, and is considered to be masked. Previously developed models for estimation of component reliability from masked system life data have been based upon the assumption that masking occurs independently of the true cause of system failure. In this paper we develop a Bayesian methodology for estimating component reliabilities from masked system life data when the probability of masking is dependent upon the true cause of system failure. The Bayesian approach is illustrated for the case of a two-component system of exponentially distributed components.  相似文献   
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There is a paucity of research on how mothers and fathers socialize emotion in their adolescent sons and daughters. This study was based on 220 adolescents (range 11‐ to 16‐years‐old) who exhibit a range of emotional and behavioral problems and their parents. Parental responses to their children's displays of sadness, anger and fear were assessed. Mothers were found to be more engaged in their children's emotional lives than were fathers. With a few important exceptions (e.g., boys were punished for expressions of anger more than girls), adolescent girls and boys were socialized in much the same way. Parents of older adolescents were generally less supportive and more punitive toward emotional displays. Systematic links between adolescent problem status and parent approaches to emotion socialization were found. These findings on how parents socialize emotions in their adolescents have important implications for theory as well as practice.  相似文献   
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This paper presents a methodology for production planning within facilities involved in the remanufacture of products. Remanufacturing refers to the process of accepting inoperable units, salvaging good and repairable components from those units, and then re-assembling good units to be re-issued into service. These types of facilities are common, yet many suffer from the unpredictability of good and repairable component yields, as well as processing time variation. These problems combine to make it extremely difficult to predict whether overall production output will be sufficient to meet demand. Low yields of key components can lead to shortages which require the facility to purchase new components for legacy systems, often with long lead times, thus causing overall delays. The approach developed here is a probabilistic form of standard material requirements planning (MRP), which considers variable yield rates of good, bad, and repairable components that are harvested from incoming units, and probabilistic processing times and yields at each stage of the remanufacturing process. The approach provides estimates of the expected number of remanufactured units to be completed in each future period. In addition, we propose a procedure for generating a component purchase schedule to avoid shortages in periods with a low probability of meeting demand. The proposed methodology is applied to an antenna remanufacturing process at the Naval Surface Warfare Center (NSWC). In this case study the proposed methodology identifies a potential shortage of a key component and suggests a corrective action to avoid significant delay in the delivery of remanufactured units.  相似文献   
6.
Northern aboriginal communities are widelyrecognized as having mixed, subsistence-basedeconomies. The chief characteristic of thiseconomy, aside from the contribution ofsubsistence harvesting and related activitiesto household well-being, is that the householdoperates as a ``micro-enterprise' that is thebasic unit of production as well asconsumption. This economic form has persistedinto the present day, contrary to thepredictions of many social scientists andpolicy-makers. This paper outlines a model ofthe household in mixed, subsistence-basedeconomies, and describes its characteristicsand activities. While the discussion focuseson northern Canada, the model is thought toapply generally in the circumpolar North. Quantitative measurement of northern aboriginalhousehold characteristics and activities hasbeen limited, however, because national andregional data collection systems are notdesigned specifically to capture thesephenomena. The model is therefore basedprimarily on the results of in-depth casestudies, and the systematic measurement ofsubsistence harvesting. This paper describesthe development, for the first time, of aquestionnaire specifically designed to documentquantitatively the key characteristics of thehousehold economy as part of a comprehensivesurvey of living conditions in the circumpolarArctic.  相似文献   
7.
Cet article propose un cadre théorique pour développer une sociologie des droits humains en s'intéressant aux mouvements sociaux dans le but de comprendre les cultures de droits locales. Si le droit humain est une idée qui se développe historiquement principalement à travers l'État, on remarque qu'au Canada, les avancées des droits de l'homme sont le fait de militants travaillant sur le terrain. Dans cet article, on explore aussi les écrits en sociologie au Canada. Les auteurs argumentent qu'on observe un sérieux manque d'engagement de la part des sociologues anglophones et francophones au Canada et que trop peu d'entres eux proposent de réelles études nationales. Évidemment, l'accès restreint à l'information législative représente un obstacle sérieux à la recherche académique au Canada. This article offers a framework for developing a sociology of human rights using social movements to understand local rights cultures. The idea of human rights has historically been highly statist, but grass‐roots activism has been at the heart of the most profound human rights advances in Canada. The article also raises questions about the current state of sociological writing about Canada. The author contends that there is a serious lack of engagement among English and French sociologists, and too few scholars provide genuine “national” studies. Moreover, restrictive access to information legislation represents a serious obstacle to academic research in Canada.  相似文献   
8.
Social cohesion has emerged as a powerfulhybrid concept used by academics and policyanalysts. Academics use the concept tounderline the social and economic failings ofmodernity, linking it to the decline ofcommunal values and civic participation. Policy analysts use it to highlight the socialand economic inequities caused byglobalization. The desired effect of usingthis concept is often to influence governmentsto implement policies that will enhance socialcohesion by reducing social and economicdisparities. Despite its widespread use,however, statistical measures of socialcohesion tend to overlook local, non-Westernstrategies of social inclusion as well as thesocial impact of non-Western economic systems,such as the mixed economy typical of manyAboriginal communities in North America. Inthis paper, we develop a model of socialcohesion that addresses these omissions throughthe use of social indicators that measure boththe behavior and perceptions of Inuit living inthe Canadian Arctic with respect to the social,cultural and economic conditions of Arcticcommunities. We explain how and why measuringsocial cohesion is optimized by combining bothculturally-specific and non-specific socialindicators.  相似文献   
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As the U.S. population ages, almost half of elderly householders have lived in their current home for more than 20 years, and a significant majority wish to remain in their current residence or community for as long as possible as they age. Concern with how communities will cope with these trends has led to a growing interest in naturally occurring retirement communities (NORCs), which are neighborhoods or housing complexes that house a concentration of older adults, and their potential to enhance efforts to support aging-in-place. In this article, we examine the local built and social environment of neighborhood NORCs in Tallahassee, Florida, a low-density mid-sized city. We found that a large proportion of NORCs are located in neighborhoods with an urban form, or physical design, that is presumed to be less supportive of active aging, and associated with poor access to amenities, such as grocery stores, pharmacies, and parks. Another substantial portion of NORCs are located in neighborhoods with some aspects of a supportive urban form. We also found that NORCs are over-represented in neighborhoods featuring low residential turnover and above average homeownership rates. This suggests a potential for collective action to facilitate aging-in-place, even in neighborhoods thought not to have supportive physical environments.  相似文献   
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