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831.
K. Hemming J. E. H. Shaw 《Journal of the Royal Statistical Society. Series C, Applied statistics》2002,51(4):421-435
Summary. Much current analysis of cancer registry data uses the semiparametric proportional hazards Cox model. In this paper, the time-dependent effect of various prognostic indicators on breast cancer survival times from the West Midlands Cancer Intelligence Unit are investigated. Using Bayesian methodology and Markov chain Monte Carlo estimation methods, we develop a parametric dynamic survival model which avoids the proportional hazards assumption. The model has close links to that developed by both Gamerman and Sinha and co-workers: the log-base-line hazard and covariate effects are piecewise constant functions, related between intervals by a simple stochastic evolution process. Here this evolution is assigned a parametric distribution, with a variance that is further included as a hyperparameter. To avoid problems of convergence within the Gibbs sampler, we consider using a reparameterization. It is found that, for some of the prognostic indicators considered, the estimated effects change with increasing follow-up time. In general those prognostic indicators which are thought to be representative of the most hazardous groups (late-staged tumour and oldest age group) have a declining effect. 相似文献
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834.
The grayest areas of defining child sexual abuse appear to involve the age and sex of the individuals involved, resulting in a potential for different attributions regarding child sexual abuse across individuals. As a result, this study examines the responses of 262 male and female college student participants after viewing a series of hypothetical sexual abuse vignettes that depicted a 15-year-old victim that neither resisted nor encouraged the advances of a 15-, 25-, or 35-year-old perpetrator's actions. Gender roles and sexual attitudes were examined as potentially important covariates. Using a series of analyses of covariance, female participants gave more pro-victim ratings than male participants, and younger perpetrators were viewed less negatively than older perpetrators. Gender roles and sexual attitudes served as significant covariates. These findings emphasized the need to educate individuals about child sexual abuse and unwanted sexual contact involving individuals under the age of consent. 相似文献
835.
Anne Harris 《Intercultural Education》2011,22(3):217-222
Drawing on performative public pedagogies, Sudanese young women have co-created ethno-cinematic films in order to reflect on their prior schooling, ongoing resettlement in the West, representations in the media, and offer advice to newly arriving African young women and the education system itself. 相似文献
836.
Raver SA Michalek AP Gillespie AM 《Journal of social work in disability & rehabilitation》2011,10(2):115-128
Caregivers of individuals with disabilities can experience stress as they manage caregiving responsibilities while they attempt to balance family, work, and the satisfaction of their personal goals. In this pilot study, 31 caregivers of individuals with a variety of disabilities completed a quantitative-qualitative survey. A statistically significant relationship was found between the age and severity of disability of the family member receiving care, the length of time care had been provided, the educational level and the relationship of the caregiver to the family member and reported feelings of optimism, humbleness, quality of family relationships, financial concerns, loss of control, and hope. When life goals were probed, the most common reported were achieving financial stability, having a strong, healthy family, and experiencing happiness. The implications for supporting caregivers and their families are discussed. 相似文献
837.
Recent discussions about disciplinarity and interdisciplinarity in the social sciences have tended to map and critique methods, theories and approaches to knowledge production, but spend less time exploring the ways in which institutional constraints and personal trajectories produce different kinds of disciplinarity and interdisciplinarity. In this paper we present findings on interdisciplinarity from UK research undertaken as part of an EC project on knowledge, gender and institutions. The research involved a small survey (n = 14), in-depth interviews (n = 5), two focus groups (n = 7) and observation of social scientists in one university department between June 2006 and April 2007. We reflect on the unwillingness of social scientists to confront the conditions of our academic labour in an account of our difficulties with gaining access and respondents in this study, before moving on to consider some of the different ways in which interdisciplinarity and disciplinary commitments were related to particular forms of scientific and symbolic capital. We go on to discuss this in relation to the autonomy of academic teaching-and-research staff compared to contract researchers, and consider the implications of our findings for the future of interdisciplinarity and the social sciences. 相似文献
838.
This article argues the importance of ensuring initiatives aimed at improving children’s social and emotional well‐being are based on sound participatory principles. The discussion posits links between the recognition of children, dialogic approaches to participation, changing conceptualisations of children and childhood, and children’s well‐being. It explores these links in light of one particular initiative, Seasons for Growth ( Graham, 1996, 2002 , Seasons for Growth; Loss and Grief Education Program. MacKillop Foundation), an education programme built around emerging evidence that giving children a voice assists them to adapt to family change. The paper concludes with insights into what is involved when we locate notions of ‘having a say’ as a key element in promoting children’s well‐being.© 2010 The Author(s). Journal compilation 2010 National Children’s Bureau and Blackwell Publishing Limited. 相似文献
839.
We evaluated the facilitative effects of multiple exemplar training (MET) on the establishment of derived tact relations in typically developing children. A multiple-probe design across stimulus sets was implemented to introduce MET. Participants were first taught to conditionally relate dictated names in English to their corresponding objects (listener behavior; A-B relations), followed by tests for derived tacts (B-A relations). If participants failed these tests, MET was implemented whereby tact relations were explicitly taught with novel stimulus sets, followed by test probes with the original training set. MET continued with novel stimuli until participants met criterion for the emergence of derived tact relations or after exposure to three MET sets. Results indicated failed tests for tact relations following direct training in listener relations, and marked improvements in derived tact relations following MET across all participants. 相似文献
840.
Anne E. Winkler 《Population research and policy review》1994,13(3):283-303
This study attempts to clarify the effect of welfare generosity on family structure while controlling for community mores, local labor market conditions, and other sociodemographic characteristics. In the existing AFDC (Aid to Families with Dependent Children) literature, these latter factors have been largely ignored. The empirical analysis is conducted by linking individual-level data from the 1987 National Survey of Families and Households (NSFH) with information on county-level unemployment rates, state AFDC benefits, and proxies of community mores. In particular, the detailed nature of the NSFH data set provides a unique opportunity to investigate the social and economic determinants of cohabitation, among other family structures. Local labor market conditions are found to significantly affect marriage and single-motherhood, while community conservatism is found to discourage the least conventional family structure — cohabitation. Finally, this study raises some question about the effect of AFDC policy on marriage and related events. Specifically, AFDC's statistical impact is found to be sensitive to the inclusion of an explicit measure of community conservatism in the empirical model specification. 相似文献