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191.
This study analyzes the associations between marital status, gender, and depressive symptoms among parents. The regression results indicate that married parents report fewer traditional depressive symptoms and lower rates of alcohol abuse than do single parents. Mothers and fathers also appear to be more likely to exhibit different depressive symptoms: Mothers are more likely than fathers to report traditional depressive symptoms and fathers are more likely to report the abuse of alcohol. Finally, we find evidence that indicators of parenting burdens such as economic strain, household labor, childcare, social support, and religious involvement mediate and moderate these relationships. 相似文献
192.
This paper focuses on interest rate models with regime switching and extends previous nonlinear threshold models by relaxing the assumption of a fixed number of regimes. Instead we suggest automatic model determination through Bayesian inference via the reversible jump Markov Chain Monte Carlo (MCMC) algorithm. Moreover, we allow the thresholds in the volatility to be driven not only by the interest rate but also by other economic factors. We illustrate our methodology by applying it to interest rates and other economic factors of the American economy. 相似文献
193.
Two trends have dominated recent sociological analyses of embodiment. There has, on the one hand, been a proliferation of analyses identifying bodies as the experiential vehicles through which we exist and interact in the world. On the other hand, this has been accompanied by a large growth in studies suggesting that technological advances have both increased our exposure to instrumental rationality and radically weakened the boundaries between humans and machines. Considered together, these trends raise an important question which has, however, been marginalised in the literature: if bodies are increasingly shaped and even constituted by the performative demands and invasive capacities of technology, what implications does this have for our lived experience of ourselves and our social and natural environment? In addressing this issue, our paper revisits Heidegger's discussion of the technological ‘enframing’ of humans and asks two questions. First, what have we lost experientially by being positioned as a ‘standing reserve’ for technologically driven demands for efficiency in contemporary society? Second, can the analysis of religious attempts to reframe human experience provide us with a perspective from outside this technological culture that enables us to appreciate the embodied experiences, dispositions and potentialities of humans in fresh ways? Our approach to these issues proceeds via a comparative study of the ‘body pedagogics’ of modern technological culture and two, very different, religious cultures. 相似文献
194.
Chris J. Ivory Neil Alderman Alfred T. Thwaites Ian P. McLoughlin Roger Vaughan 《英国管理杂志》2007,18(3):224-240
The article considers knowledge management issues from the client's perspective. In the example presented, a sludge treatment centre procured by Northumbrian Water Ltd (NWL), the task faced by the client was to manage knowledge in a context where the core technology being procured was new and resulted in the need for new knowledge to be created and shared both pre‐ and post‐delivery. In exploring these issues, the article reveals the problems of (and some solutions to) managing knowledge across the project life‐cycle and between different groups, where the motivation for generating and sharing knowledge was not the same for all participants. 相似文献
195.
Chris Atton 《Sociology Compass》2007,1(1):17-27
Research in alternative media has burgeoned since the turn of the millennium. The majority of studies has examined the political and social dimensions of alternative media and has focused on the media of social movements. The value of these amateur media projects lies not only in the content they produce, but also in the educational and political empowerment they offer to their participants. Other forms of alternative media, such as blogs and fanzines, present challenges to mainstream journalism; they challenge the exclusive authority and expertise of professional journalists. Recent research has begun to examine the relationship between alternative and mainstream media practices, particularly examining how alternative media offer ways of rebalancing media power and how 'ordinary' people are able to represent their own lives and experiences and concerns in ways that are often ignored or marginalised by the dominant media institutions. However, we need to learn more about specific alternative media practices and how audiences use their content. 相似文献
196.
A common problem in the meta analysis of continuous data is that some studies do not report sufficient information to calculate the standard deviation (SDs) of the treatment effect. One of the approaches in handling this problem is through imputation. This article examines the empirical implications of imputing the missing SDs on the standard error (SE) of the overall meta analysis estimate. The simulation results show that if the SDs are missing under Missing Completely at Random and Missing at Random mechanism, imputation is recommended. With non random missing, imputation can lead to overestimation of the SE of the estimate. 相似文献
197.
198.
Chris Rossdale 《Globalizations》2015,12(1):1-5
AbstractCritical theory has long concerned itself with the exploration of radical political subjectivities, of the various ways in which social movements, revolutionary classes and everyday communities reshape themselves and their relations in order to survive, transform or defeat oppressive forces. This special issue brings together a series of articles examining different forms (and spaces) of contemporary radical subjectivities, situating them in a global context. This short editorial introduction highlights the major themes of the special issue (placing particular attention on the relationship between theory and the subject), and outlines the eight pieces that follow. 相似文献
199.
John O’Neill Ruth Anne Rehfeldt Chris Ninness Bridget E. Mu?oz James Mellor 《The Analysis of verbal behavior》2015,31(2):255-266
The purpose of the present study was to compare the effects of an online stimulus equivalence procedure to that of an assigned reading when learning Skinner’s taxonomy of verbal behavior. Twenty-six graduate students participated via an online learning management system. One group was exposed to an online stimulus equivalence procedure (equivalence group) that was designed to teach relations among the names, antecedents, consequences, and examples of each elementary verbal operant. A comparison group (reading group) read a chapter from a popular textbook. Tests for the emergence of selection-based and topography-based intraverbal responses were then conducted, as were tests for generalization and maintenance. Overall, results suggest that the online equivalence procedure was not significantly more effective in promoting topography-based responses than the assigned reading. However, performance on selection-based tests was enhanced by the online equivalence procedure as was performance on topography-based tests when participants were required to provide operant names in response to consequences or examples. On average, the equivalence group performed at a level that was 10 percentage points (i.e., a full letter grade) above that of the reading group. The viability of the equivalence-based procedure is discussed in relation to the assigned reading. 相似文献
200.
Experimental designs for detecting synergy and antagonism between two drugs in a pre‐clinical study 下载免费PDF全文
Matthew Sperrin Helene Thygesen Ting‐Li Su Chris Harbron Anne Whitehead 《Pharmaceutical statistics》2015,14(3):216-225
The identification of synergistic interactions between combinations of drugs is an important area within drug discovery and development. Pre‐clinically, large numbers of screening studies to identify synergistic pairs of compounds can often be ran, necessitating efficient and robust experimental designs. We consider experimental designs for detecting interaction between two drugs in a pre‐clinical in vitro assay in the presence of uncertainty of the monotherapy response. The monotherapies are assumed to follow the Hill equation with common lower and upper asymptotes, and a common variance. The optimality criterion used is the variance of the interaction parameter. We focus on ray designs and investigate two algorithms for selecting the optimum set of dose combinations. The first is a forward algorithm in which design points are added sequentially. This is found to give useful solutions in simple cases but can lack robustness when knowledge about the monotherapy parameters is insufficient. The second algorithm is a more pragmatic approach where the design points are constrained to be distributed log‐normally along the rays and monotherapy doses. We find that the pragmatic algorithm is more stable than the forward algorithm, and even when the forward algorithm has converged, the pragmatic algorithm can still out‐perform it. Practically, we find that good designs for detecting an interaction have equal numbers of points on monotherapies and combination therapies, with those points typically placed in positions where a 50% response is expected. More uncertainty in monotherapy parameters leads to an optimal design with design points that are more spread out. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献