Modelling Variability in the Branching Structure of Strawberry Inflorescences

The branching structure of inflorescences of the cultivated strawberry ( Fragaria × ananassa Duch.) is very variable. This paper demonstrates that some aspects of this variability are well described by a simple stochastic model of branching that has two adjustable parameters. The model is shown to provide a good fit to data from a set of almost 700 inflorescences of the cultivar Elsanta, collected over two successive years. For one parameter the maximum likelihood estimator is a moment estimator which is fully efficient even if the detailed branching structure of the inflorescences is not recorded. This parameter provides a convenient summary of branching vigour. The maximum likelihood estimator of the second parameter must be determined iteratively and can be quite inefficient unless the full branching structure is recorded. The model demonstrates that branching structure is affected by the order in which inflorescences emerge on the plant.     

Anticipatory socialization in the use of social media in public relations: A content analysis of PRSA's Public Relations Tactics

This article examines one issue in how public relations students are socialized in their understanding of the value and power of social media in the practice of public relations. The public relations academic research about social media is explored, as well as the professional claims about the value of social media as a public relations tactic. The researchers conducted a content analysis of 1 year of Public Relations Tactics issues. The data are viewed through the theoretical frame of the socialization literature ( Jablin, 1987). The results suggest that claims of social media power far outweigh evidence of social media effectiveness as a communication tool. A disconnect exists between what authors of Public Relations Tactics pieces view as the potential for social media and the research findings about the effectiveness of social media. The final section of the article discusses the implications for public relations educators, professional associations, and practitioners as they consider social media tactics in public relations strategy.     

Interagency practice in children with non‐organic failure to thrive: is there a gap between health and social care?

Failure to thrive is a child protection issue that crosses the boundaries between many professional groups. It is a condition that places children at risk of negative developmental, social, physical and emotional consequences, but it has complex causal roots. Although there are known to be links between neglect, emotional abuse and failure to thrive, health and social care providers have differing responses and interventions with children who are failing to thrive. An examination of recent Scottish statistics supports the argument that there may be a gap between health and social care that some children may be falling through. Evidence from the literature regarding interagency roles and responsibilities is ambiguous, and the different, albeit overlapping, professional constructions of failure to thrive may result in a gap in care for some vulnerable children. It is only by beginning to understand the crucial links between different professions that we can contribute towards effective interagency child protection policy and practice. Copyright © 1999 John Wiley & Sons, Ltd.     

Semiparametric Stochastic Modeling of the Rate Function in Longitudinal Studies

In longitudinal biomedical studies, there is often interest in the rate functions, which describe the functional rates of change of biomarker profiles. This paper proposes a semiparametric approach to model these functions as the realizations of stochastic processes defined by stochastic differential equations. These processes are dependent on the covariates of interest and vary around a specified parametric function. An efficient Markov chain Monte Carlo algorithm is developed for inference. The proposed method is compared with several existing methods in terms of goodness-of-fit and more importantly the ability to forecast future functional data in a simulation study. The proposed methodology is applied to prostate-specific antigen profiles for illustration. Supplementary materials for this paper are available online.     

Root and Branch Restructuring to Achieve Major Cuts: The Social Policy Programme of the 2010 UK Coalition Government

The 2010 Coalition has set itself the challenge of combining an unprecedentedly rapid and profound retrenchment with a fundamental restructuring of the public sector, both to be accomplished within five years. The immediate justification is a presumed need to reduce national indebtedness. The longer‐term goal is to shrink the state, free up the market and set British political economy on a new course. The programme has encountered a number of set‐backs and some elements appear more likely to be realized than others. This article considers the objectives of the Coalition programme and the likely outcomes, using evidence from a number of sources including comparisons with the experience of retrenchment elsewhere and analysis of previous rounds of public spending cut‐backs.