The Analysis of Designed Experiments and Longitudinal Data by Using Smoothing Splines

In designed experiments and in particular longitudinal studies, the aim may be to assess the effect of a quantitative variable such as time on treatment effects. Modelling treatment effects can be complex in the presence of other sources of variation. Three examples are presented to illustrate an approach to analysis in such cases. The first example is a longitudinal experiment on the growth of cows under a factorial treatment structure where serial correlation and variance heterogeneity complicate the analysis. The second example involves the calibration of optical density and the concentration of a protein DNase in the presence of sampling variation and variance heterogeneity. The final example is a multienvironment agricultural field experiment in which a yield–seeding rate relationship is required for several varieties of lupins. Spatial variation within environments, heterogeneity between environments and variation between varieties all need to be incorporated in the analysis. In this paper, the cubic smoothing spline is used in conjunction with fixed and random effects, random coefficients and variance modelling to provide simultaneous modelling of trends and covariance structure. The key result that allows coherent and flexible empirical model building in complex situations is the linear mixed model representation of the cubic smoothing spline. An extension is proposed in which trend is partitioned into smooth and non-smooth components. Estimation and inference, the analysis of the three examples and a discussion of extensions and unresolved issues are also presented.     

Politics and Growth

Theories of growth have made progress in understanding the mechanisms of growth in economic terms. However, there is less understanding of the political processes that enable or obstruct these mechanisms. This article provides a four‐stage framework to clarify and analyse the connections between politics and growth: (i) discussing the basic conditions essential for growth; (ii) suggesting that whether or not these conditions emerge depends on specific forms of public‐private interaction; (iii) linking these relationships to the incentives facing those in political power and investors; and (iv) considering the factors at country level that may help to push incentives in a pro‐growth direction.     

Working in partnership: user perceptions of intensive home visiting

The aim of this study was to explore the perceptions of vulnerable women about the value of intensive home visiting in pregnancy and the first year of life delivered by health visitors trained to work in partnership with families. Twenty in‐depth interviews were conducted with women who had completed the home visiting programme and agreed to be interviewed. The data were fully transcribed and analysed thematically. Despite initial concerns and negative preconceptions about health and social service professionals, participating women greatly valued the relationships that were established with their home visitors and identified a number of ways in which they had benefited. These included increased confidence, improved mental health, better parenting, improved relationships and changes in their attitudes toward professionals. These findings demonstrate the potential of intensive home visiting delivered in partnership with mothers in reaching and helping vulnerable and ‘hard‐to‐reach’ families. They highlight the importance of establishing a trusting relationship between helper and provider, and the need for home visitors to have the necessary skills and qualities to establish such relationships. Copyright © 2007 John Wiley & Sons, Ltd.     

Meeting Family Housing Needs: Experiences of Rural Women in the Midst of Welfare Reform

Though sometimes overlooked, the availability, affordability, and quality of housing in rural communities are a potential barrier to transitioning from welfare to work. In this investigation we examine housing issues confronting 17 rural women and their families who were recipients of welfare benefits in 1997. Respondents' housing accounts illustrate the significance of reliance on both government housing subsidies and informal subsidies supplied by friends, family, and more distant relatives. The study focuses on concerns women have in meeting their families shelter needs and the complexities involved in doing so. The findings of the research suggest that additional housing policy initiatives, as well as a targeted research agenda are needed, especially for families whose welfare benefits are nearing termination.     

Beer and Tea: Harmony and Contradiction Among Two Unlikely Counterparts

This essay begins by examining the representations and interpretations of women and men in two sets of images: the Women's Institute Alternative Calendar and a television commercial for Guinness beer. Both of these compositions are exceptional in their own right, and have captured the imaginations of wide audiences. Taken together, the counterpointing of culture and nature, serenity and intensity, and feminine charm and virility creates a montage of images that both reflect and represent traditional forms of femininity and masculinity. This essay draws on a variety of sociological and interdisciplinary theoretical approaches, with an emphasis on the storied nature of lives, sexuality, and life change. C. Wright Mills declares that the sociological imagination is necessary in order to grasp history and biography and the relations between the two within society (Mills, 1959, p. 6). The author's aim in this essay, following through on Mills's idea, is to provide insight into the lives of earlier cohorts of women and a glimpse into how personal and social change comes about.     

Social exclusion in Europe: some conceptual issues

In the late 20th and early 21st century, social exclusion has become something of a trope around which is pegged justifications for various reforms. The notion of social exclusion has found its way into the lexicon of all major global governance institutions. How has this happened, and what are its implications for scholars of contemporary welfare reforms? In this article, we consider the ‘rise and rise’ of the discourse of social exclusion, with particular reference to its development as a policy paradigm within the European Union. We note that its initial iteration was anchored in a functionalist discourse of social organisation but that this was quickly challenged both by post‐structuralist and post‐colonial perspectives and by research findings that undermined the view of mainstream institutions as fundamentally integrative and inclusive in nature. The debate about social exclusion, we suggest, is simultaneously a debate about the historical and social dynamics of European modernity.     

Maternity services and the discharge process: A review of practice in Queensland

BackgroundEfforts to increase postnatal support available to women and families are hampered by inadequate referral mechanisms. However, the discharge process in maternity services has received little research attention.AimTo review current discharge practices in Queensland, in order to identify mechanisms to minimise fragmentation in the care of women and families as they transition from hospital-based postnatal care to community-based health and other services.MethodsA survey of discharge practices in Queensland hospitals that offer birthing services (N = 55) and content analysis of discharge summary forms used by those hospitals.FindingsFifty-two Queensland birthing hospitals participated in the study. Discharge summaries were most commonly sent to General Practitioners (83%), less commonly to Child and Family Health Nurses (CFHNs; 52%) and rarely to other care providers. Discharge summaries were usually disseminated within one week of discharge (87%), but did not capture any information about care provided by domiciliary services. Almost one-fifth (19%) of hospitals did not seek women's consent for the disclosure of their discharge summary and only 10% of hospitals had processes for women to check accuracy. Significant gaps in the content of discharge summaries were identified, particularly in psychosocial and cultural information, and post-discharge advice. The format of discharge summaries diminished their readability.ConclusionDischarge summaries (format and content) should be consistent, comprehensive and specific to maternity services. Discharge summaries should be generated and disseminated electronically at the time of discharge from the maternity service. Women should review their discharge summaries and direct and consent to its dissemination.