3,286 research outputs found

    CN Bimodality at Low Metallicity: The Globular Cluster M53

    Full text link
    We present low resolution UV-blue spectroscopic observations of red giant stars in the globular cluster M53 ([Fe/H]=-1.84), obtained to study primordial abundance variations and deep mixing via the CN and CH absorption bands. The metallicity of M53 makes it an attractive target: a bimodal distribution of 3883 angstrom CN bandstrength is common in moderate- and high-metallicity globular clusters ([Fe/H] > -1.6) but unusual in those of lower metallicity ([Fe/H] < -2.0). We find that M53 is an intermediate case, and has a broad but not strongly bimodal distribution of CN bandstrength, with CN and CH bandstrengths anticorrelated in the less-evolved stars. Like many other globular clusters, M53 also exhibits a general decline in CH bandstrength and [C/Fe] abundance with rising luminosity on the red giant branch.Comment: 8 pages including 11 figures and 1 table, accepted by PAS

    Seeking a disability lens within climate change migration discourses, policies and practices

    Get PDF
    Around 15% of the global population is estimated to live with disability. With the Millennium Development Goals failing to recognise disability issues, the Sustainable Development Goals seek to promote a stronger focus on the alleviation of poverty and inequality amongst disabled people. Since then, the vulnerability of disabled people has been highlighted within international climate change agreements. Yet a critical disability lens is largely lacking from broader aspects of climate change adaptation planning. Focusing primarily on examples from the Asia-Pacific region (a region including low-lying coastal areas and islands that are frequently highlighted as exemplars of communities on the front line of climate change), this article discusses the need to integrate critical insights from disability studies into current understandings of climate change adaptation and mobility if we are to facilitate more inclusive, democratic and equitable adaptation in the face of climate change

    A(nother) time for nature? Situating non-human nature experiences within the emotional transitions of sight loss

    Get PDF
    Sight impairment is experienced by approximately 253 million people worldwide, including people of all generations, at all life course stages. Caught between past and present embodiments of the world, people often express feelings of loss with the onset of sight impairment. This paper examines the role of nonhuman nature encounters as a contingent resource amongst individuals navigating these emotional transitions. It responds to recent calls to attend to the life course in both critical disability studies and the growing body of work linking nonhuman nature relations to human wellbeing. The paper draws on findings from a qualitative study that combined in-depth narrative interviews with in situ go-along interviews to explore how 31 people with sight impairment in England describe and experience a sense of wellbeing (or otherwise) with nature across their everyday lives and life trajectories. The data were analysed using inductive narrative thematic analysis. While nonhuman nature encounters were valued by many participants in promoting a sense of freedom, relatedness, pleasurable sensory immersion, opportunities for exploration and ‘skilling up’, this paper cautions against generalised or overly Romantic tropes of what nonhuman nature can ‘do’ through key sight loss junctures, and for whom. It highlights the value of providing timely and sensitive social scaffolding and nurturing creativity to open up meaningful opportunities to engage with nonhuman nature and to counter feelings of loss exacerbated by identity-limiting life course narratives and disability stereotypes. Informed by the stories shared by participants to chart and situate their experiences of sight loss, we call for a new identity politics within and beyond the growing movement to ‘connect’ people to nonhuman nature for wellbeing; a politics that affirms diverse forms of more-than-human embodiment, recognising how and why such relations may weave into – and indeed out of – people’s varied, interdependent life course trajectories

    How can we better prepare new doctors for the tasks and challenges of ward rounds?:An observational study of junior doctors' experiences

    Get PDF
    Founding: Economic and Social Research Council Open access via T&F agreement Acknowledgements The authors would like to thank participating FY1 doctors and the senior staff who made this study possible. Funding The study was funded by the ESRC via a Doctoral Studentship awarded to CB.Peer reviewedPublisher PD

    Does the Linker in Ci-VSP Function as a PI(4,5)P2 Binding Domain?

    Get PDF
    corecore