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171.
Using gerontological and feminist frameworks, we explored the relationships older women have with their children and grandchildren. In-depth, qualitative interviews were conducted with 34 women, ranging in age from 55 to 88. From our analyses of the women's perceptions of their family relationships, two themes were prevalent: the centrality of children and the peripherality of grandchildren in their everyday lives. The women had varying degrees of involvement with their children and grandchildren, and these relationships contributed to their sense of self and family. Their relationships were not stagnant, but were continually reshaped as both the women and their family members proceeded through the life course. 相似文献
172.
Theory and Society - This article examines the political crisis of social-democratic parties in Western Europe in light of its impact on the social-democratic emancipatory project, and asks whether... 相似文献
173.
174.
Integrated product development (IPD) is gaining increased attention from practitioners and the academic community as a source of innovation and competitive advantage. However undeniable the importance of the issue is as to how the different actors involved in the process interact among themselves and the supporting factors not being well understood even in the SME context, the availability of empirical research and a comprehensive framework to drive this research remains unavailable. This article contributes to these research gaps by providing theoretical and empirical findings. First, a research framework on IPD is identified. The proposed framework represents a conceptualisation of IPD principles as consisting of three groups of integration enablers, which aim to achieve high internal (among departments) and external (with suppliers and customers) integration: (a) organisational enablers, (b) technological enablers and (c) methodologies. Then, a multiple case study approach is used in order to empirically explore external integration with suppliers in product development in 22 SMEs from the machine tool sector. 相似文献
175.
In the context of the United States, mainstream entertainment genres continue to recycle dominant racial ideologies typified by the perspectives of white men. American minstrelsy, literature, and film are key sites for whiteness to manifest itself in the design and projection of online personae via white avatars. These projections of whiteness also reify the US racial structure, one that subjects the perspectives of people of color to misrepresentation and further racial marginalization. This theoretical interpretative article employs Critical Race Theory (CRT) and Critical Whiteness Studies (CWS) to investigate how these projections of whiteness are historically rooted and have evolved in the post-racial era. Using popular virtual gaming and social media examples, this paper critically deconstructs how the creation of white personae via avatars maintains and justifies the hegemonic power of whiteness. 相似文献
176.
Two similar disastrous fires struck concert venues in the USA (The Station, 2003) and Argentina (República Cromañón, 2004). We explore similarities and contrasts in public responses to these tragedies to better understand two patterns of collective action. One pattern (‘insider’) revolves around the deployment of forms of action and organization aimed at working within the constraints and opportunities already available or easily attainable within prevailing institutional arrangements. The other (‘outsider’) involves a reliance on forms of action and organization that seek to gain leverage by challenging prevailing institutions, often by way of protest, direct action, and the threat to disrupt existing arrangements. These ‘insider’ and ‘outsider’ patterns bear the imprint of accumulated repertoires of action and organization, are very often in tension, and involve trade-offs that participants in civil society organizations constantly weigh in considering alternative courses of action. Moreover, choices between the ‘insider’ and ‘outsider’ strategies are made vis-à-vis complex arrays of constraints and opportunities embodied in prevailing institutional arrangements. We also argue that pure ‘insider’ and ‘outsider’ patterns constitute theoretical constructs or ideal types, and that neither the ‘insider’ nor the ‘outsider’ modes of mobilization are inherently superior to one another in ensuring greater wellbeing or a stronger civil society. Moreover, in the actual terrain of collective action, such as in the two situations at hand, most often we find that actors deploy complex combinations of strategies, to constitute ‘hybrid’ modes of mobilization. To further illustrate this point, we briefly discuss populism as a form of mobilization that ultimately combines both ‘insider’ and ‘outsider’ strategies, and is in fact defined by a conflictive relationship between both sets of strategies. 相似文献
177.
Approximation Algorithms for Bounded Facility Location Problems 总被引:1,自引:0,他引:1
The bounded k-median problem is to select in an undirected graph G = (V,E) a set S of k vertices such that the distance from any vertex v V to S is at most a given bound d and the average distance from vertices V\S to S is minimized. We present randomized algorithms for several versions of this problem and we prove some inapproximability results. We also study the bounded version of the uncapacitated facility location problem and present extensions of known deterministic algorithms for the unbounded version. 相似文献
178.
179.
Roberto Rocci 《Statistical Methods and Applications》1992,1(3):413-422
Summary A constrained version of Three-mode Factor Analysis model is considered in order to make its interpretation easier. The constraints
are obtained by fixing some elements of the core to zero and requiring orthonormal factor loadings. An algorithm to solve
the related minimization problem and an example of core constraints with theoretically interesting features, are given. 相似文献
180.
Fernández Hermida JR Secades Villa R Vallejo Seco G Errasti Pérez JM 《Journal of drug education》2003,33(3):337-353
Research on family risk factors for addictive behaviors in young people has not paid a great deal of attention to parents' knowledge of their children's addictive behaviors and of the family risk factors that affect such behaviors. The aim of this work is to compare knowledge about these two aspects in two groups of parents that differ regarding their children's declared drug use. The research was carried out with a sample of 309 schoolchildren and their families, divided into two groups: one of 154 families with children defined as non-Drug Users and another of 155 families with children defined as Drug Users. The results show that parents with children who consume drugs tend to strongly underestimate their children's use. Moreover, they overestimate the control they exercise over them and appear to be more familiarized with the use of drugs, if we compare them with parents of non-Drug Users. It is suggested that these results may be relevant for the planning of strategies that increase motivation in families with drug-risk children to participate in prevention programs. 相似文献