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41.
42.
Heide Weishaar Amanda Amos Jeff Collin 《International Journal of Social Research Methodology》2013,16(2):175-177
Social network analysis (SNA), a method which can be used to explore networks in various contexts, has received increasing attention. Drawing on the development of European smoke-free policy, this paper explores how a mixed-method approach to SNA can be utilised to investigate a complex policy network. Textual data from public documents, consultation submissions and websites were extracted, converted and analysed using plagiarism detection software and quantitative network analysis and qualitative data from public documents and 35 interviews were thematically analysed. While the quantitative analysis enabled understanding of the network’s structure and components, the qualitative analysis provided in-depth information about specific actors’ positions, relationships and interactions. The paper establishes that SNA is suited to empirically testing and analysing networks in EU policy-making. It contributes to methodological debates about the antagonism between qualitative and quantitative approaches and demonstrates that qualitative and quantitative network analysis can offer a powerful tool for policy analysis. 相似文献
43.
Masked activists, self-identifying as anarchists, taking from supermarkets and handing goods to passers-by are the topic of this profile. Over 50 such acts have occurred across Greece since the onset of the financial, political and social crisis in 2008. We present a snapshot of the phenomenon of collective expropriation and position it within a context of further market-oriented forms of resistance to ‘austerity politics’. 相似文献
44.
Jeff A. Larson 《Sociology Compass》2013,7(10):866-879
For much of the past 40 years, the study of social movement tactics has viewed organizers' choices as driven by a desire to maximize efficacy and efficiency within a context of scarce resources and structural constraints. As sociologists increasingly turned toward culture, a new orientation emerged to view tactical choice as a process of gathering, interpreting, and evaluating information within dynamic, uncertain, and often‐contradictory contexts. The importance of the cultural turn has been amply demonstrated in studies of such things as identities, emotions, and collective action frames, but the full implications of its insights continue to be discovered. Four insights in particular warrant greater attention: many core concepts in the study of social movements have an interpretive, subjective, and contingent nature; tactics are a means of communication; social structures are imbued with culture, and culture is thoroughly structured; and social movements sometimes behave irrationally, and what appears to be irrational behavior often is in fact rational. I briefly discuss three areas of scholarship – collective identities, diffusion, and institutional fields – that demonstrate innovative ways that sociologists continue to combine and incorporate these insights and point the way toward a more sophisticated understanding of social movements and tactical choice. 相似文献
45.
Jeff Racine 《统计学通讯:模拟与计算》2013,42(4):1107-1114
This paper presents an approach to cross-validated window width choice which greatly reduces computation time, which can be used regardless of the nature of the kernel function, and which avoids the use of the Fast Fourier Transform. This approach is developed for window width selection in the context of kernel estimation of an unknown conditional mean. 相似文献
46.
Richard B. Felson Jeff Ackerman Seong‐Jin Yeon 《Journal of marriage and the family》2003,65(3):622-634
We examined the frequency of domestic violence and verbal altercations relative to the level of domestic conflict using survey data from the United States and Korea. We found evidence that individuals are generally less likely to use violence during an altercation if the antagonist is a family member than if the antagonist is a stranger. People apparently have stronger inhibitions about hitting family members than about hitting strangers, and, as a result, domestic violence is infrequent relative to the level of domestic conflict. In addition, verbal altercations are more likely to occur in conflicts with partners and children than in conflicts involving strangers, suggesting that the relaxation of rules of politeness contributes to the expression of grievances and ultimately the use of violence in these relationships. 相似文献
47.
The predominantly urban boroughs of Warrington and Halton straddle the river Mersey in northwest England. Since the 1970s
there has been a major change in land-use associated with both innovative town design and the decline of manufacturing and
chemical industries in the boroughs. Also, co-ordinated programmes have directly addressed air and water pollution. The breeding
birds of the two boroughs were surveyed in 1978–84 and 2004–06 as part of the bird atlases of Cheshire and Wirral, based on
tetrads (2 × 2 km squares). We divided the breeding species into eight guilds based on broad ecological characteristics of
habitat or food, omitting the generalists and colonial species, and compared the change between our two atlases in the number
of occupied tetrads in Halton and Warrington and in the rest of the county. Four of our eight guilds have fared significantly
better within our study area: waterbirds (24 species), those feeding on invertebrates (16 species), woodland specialists (21
species) and the two species that decorate their nests with lichens. The remaining four guilds showed no difference between
Halton and Warrington and the rest of Cheshire and Wirral: raptors (5 species) have increased throughout, while breeding waders
(7 species), farmland seedeaters (7 species) and aerial insectivores (5 species) have declined throughout. We interpret these
results in relation to improved quality of water and air and changing patterns of land-use in the urban greenspace, especially
an increase in woodland cover and connectivity. 相似文献
48.
love laugh live 《爱情·婚姻·家庭(生活纪实)》2011,(9):48-48
智慧的妈妈,才懂得如何拿捏好半推半放的技巧,让孩子一路以苦为乐地进入常青藤。海外子女教育的中文论坛有三个著名的网络用语:推妈:这个来源于英文的push一词,推妈就是那种成天盯着孩子学业、课外兴趣班的妈妈,不停地推着孩子往前走。羊妈:放羊式的放养教育,让孩子自己来决定成长的过程中该学什么了,通俗来讲就是尽情地玩,到了年纪进了学校自然就会了。 相似文献
49.
A number of studies have evaluated the accuracy of projections of the size of the total population, but few have considered the accuracy of projections by age group. For many purposes, however, the relevant variable is the population of a particular age group, rather than the population as a whole. We investigated the precision and bias of a variety of age-group projections at the national and state levels in the United States and for counties in Florida. We also compared the accuracy of state and county projections that were derived from full-blown applications of the cohort-component method with the accuracy of projections that were derived from a simpler, less data-intensive version of the method. We found that age-group error patterns are different for national projections than for subnational projections; that errors are substantially larger for some age groups than for others; that differences in errors among age groups decline as the projection horizon becomes longer; and that differences in methodological complexity have no consistent impact on the precision and bias of age-group projections. 相似文献
50.