35,917 research outputs found

    Mismatches between conservation science and practice

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    Studying the Perturbative Reggeon

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    We consider the flavour non-singlet Reggeon within the context of perturbative QCD. This consists of ladders built out of ``reggeized'' quarks. We propose a method for the numerical solution of the integro-differential equation for the amplitude describing the exchange of such a Reggeon. The solution is known to have a sharp rise at low values of Bjorken-x when applied to non-singlet quantities in deep-inelastic scattering. We show that when the running of the coupling is taken into account this sharp rise is further enhanced, although the Q^2 dependence is suppressed by the introduction of the running coupling. We also investigate the effects of simulating non-perturbative physics by introducing a constituent mass for the soft quarks and an effective mass for the soft gluons exchanged in the t-channel.Comment: LaTeX, 21 pages, 16 figure

    Examining the fabric of mindful parenting and mindfulness-based parenting interventions

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    Background: Research to date suggests Mindfulness-based Parenting interventions are beneficial for parents, children, and the parent-child relationship. Alongside examining efficacy, researchers have also begun to examine mechanisms of change. Aim: This narrative review, based on a systematic literature search examined mechanisms that underpin Mindfulness-based Parenting Interventions, drawing on the findings of quantitative studies. Method: Ten studies were identified and their quality reviewed using quality appraisal checklists. Based on a narrative synthesis, thirteen potential mechanisms of change were identified and organised into three categories: a) parent mindfulness/ emotion regulation, b) mindful parenting/relational factors, and c) other mechanisms of change. The third category included mechanisms examined by single studies. Results: There is inconsistent and/or limited evidence that mindfulness/emotion regulation and mindfulparenting/relational factors predict positive outcomes. Based on single studies, it was not possible to draw conclusions regarding three mechanisms. Conclusion: Whilst the review indicated several mediating variables predicted positive outcomes, the lack of consistency, contradictory results, and methodological weaknesses of studies are a barrier to drawing firm conclusions. The outcome of this review and recommendations for further research is discussed
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