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481.
We investigate the estimation of specific intrinsic volumes of stationary Boolean models by local digital algorithms; that is, by weighted sums of local configuration counts. We show that asymptotically unbiased estimators for the specific surface area or integrated mean curvature do not exist if the dimension is at least two or three, respectively. For three‐dimensional stationary isotropic Boolean models, we derive asymptotically unbiased estimators for the specific surface area and integrated mean curvature. For a Boolean model with balls as grains, we even obtain an asymptotically unbiased estimator for the specific Euler characteristic. 相似文献
482.
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484.
Holidays are central to the rhythm of everyday family practices and consumption, and are often depicted, within both academic literature and consumer marketing, as a defining moment in contemporary family life. To date, academic accounts of the experiences of travel and tourism have been mostly developed outside of the realm of everyday family practices and intimate relations. In this paper, therefore, we advance an interpretation of family holidays as a constituent of everyday family practices. To do this, we bring together three distinct yet interrelated conceptual frameworks: those of family practices, holiday and the everyday. Presenting and analysing data collected from ethnographic research with six families and exploring the themes of anticipation and utopian family practices, we identify how the notion of family holidays can be used a conduit for realising not only relationality between family members but also as a means of easing out the tensions and aspirations of everyday family life, a way to perfect the everyday and also to make it more palatable. 相似文献
485.
Claire C. Nicolas Anthony F. Jorm Mairead C. Cardamone‐Breen Katherine A. Lawrence Marie B. H. Yap 《Journal of research on adolescence》2020,30(1):249-265
Burgeoning research suggests that parents can reduce the risk of anxiety and depression in their adolescents and that parental self‐efficacy (PSE) may be related to parental risk and protective factors for these disorders. As there are currently no measures available to assess PSE in relation to parenting behaviors that may reduce adolescent risk for depression and anxiety, we developed and validated a measure of PSE, the Parental Self‐Efficacy Scale (PSES). Using a sample of 359 parents and 332 adolescents (aged 12–15), the PSES was found to have high reliability, confirmatory factor analysis supported its validity, and most of the hypothesized relationships between the PSES and other measures of parenting practices and adolescent depressive and anxiety symptoms were supported. 相似文献
486.
Settler colonialism expands race and racism beyond ideological perspectives and reveals the links between historical and contemporary racialized social relations and practices–the racial structure–of American society. In this article, we define settler colonialism, highlight sociological scholarship that uses settler colonial theoretical frameworks, and explore ways in which this work enriches, intersects with, complicates, and contradicts key assumptions within the sociology of race. 相似文献
487.
The current study examined the moderating role of infant sleep in the link between maternal factors (i.e., maternal education, depressive symptoms, sleep disturbance) and infant cognition. Data come from 95 African American parent–child dyads. At 3 months of age, infant sleep was objectively measured using videosomnography and actigraphy, from which measures of sleep regulation and consolidation were calculated. Mothers also self‐reported their level of education, depressive symptoms, and sleep quality. At 6 months of age, infants completed cognitive assessments, including a measure of general cognitive ability and observed attention behavior. Findings revealed that infant sleep quality interacted with maternal education and sleep disturbances to predict cognition. Specifically, the link between maternal education and infants’ attention behavior was significant and positive for infants with better regulated sleep, but not for infants with poorly regulated sleep. Similarly, the link between maternal sleep disturbance and infant cognition depended on infant sleep quality. For infants with poorer sleep consolidation, increased maternal sleep disturbance predicted poorer infant general cognitive ability. For infants with better sleep consolidation, maternal sleep disturbance was positively related to both general cognitive ability and attention behavior. These findings suggest that infant sleep quality moderates the impact of environmental factors on cognitive functioning. 相似文献
488.
Suzanne Garon PhD Mario Paris Marie Beaulieu PhD Anne Veil MSW Andréanne Laliberté 《Journal of aging & social policy》2014,26(1-2):73-87
This article aims to explain the collaborative partnership conditions and factors that foster implementation effectiveness within the age-friendly cities (AFC) in Quebec (AFC-QC), Canada. Based on a community-building approach that emphasizes collaborative partnership, the AFC-QC implementation process is divided into three steps: (1) social diagnostic of older adults' needs; (2) an action plan based on a logic model; and (3) implementation through collaborations. AFC-QC promotes direct involvement of older adults and seniors' associations at each of the three steps of the implementation process, as well as other stakeholders in the community. Based on two contrasting case studies, this article illustrates the importance of collaborative partnership for the success of AFC implementation. Results show that stakeholders, agencies, and organizations are exposed to a new form of governance where coordination and collaborative partnership among members of the steering committee are essential. Furthermore, despite the importance of the senior associations' participation in the process, they encountered significant limits in the capacity of implementing age-friendly environments solely by themselves. In conclusion, we identify the main collaborative partnership conditions and factors in AFC-QC. 相似文献
489.
Therese M. Cumming Iva Strnadová Marie Knox Trevor Parmenter 《Disability & Society》2014,29(7):999-1012
Inclusive research is an accepted approach when conducting research about individuals with disabilities. No studies have been published to date on using mobile technology to support people with intellectual disabilities as researchers. An inclusive research team of researchers with intellectual disabilities and academic researchers used mobile technology to support research skill acquisition. They conducted 15 joint research training sessions, followed by 10 research meetings. In order to discuss the experience of using iPads to support researchers with intellectual disabilities, the authors used a multiple-case study approach. Findings included the challenges and successes of mobile technology implementation. In conclusion, the iPads enhanced participation opportunities for the researchers with intellectual disabilities not only in the research, but also in other areas of their lives. This also brought to light the vulnerability of women with intellectual disabilities and the lack of control they often experience in their lives. 相似文献
490.