Understanding deformation and slip at ice streams, which are responsible for 90% of Antarctic ice loss, are vital for accurately modelling large-scale ice flow. Ice crystal orientation fabric (COF) has a first-order effect on ice stream deformation. For the first time, we use shear-wave splitting measurements of basal icequakes at Whillans Ice Stream (WIS), Antarctica, to determine a shear-wave anisotropy with an average delay time of 7 ms and fast S-wave polarisation (φ) of 29.3°. The polarisation is expected to align perpendicular to ice flow, whereas our observation is oblique to the current ice flow direction (${\sim}280^{\circ}$). This suggests that ice at WIS preserves upstream fabric caused by palaeo-deformation developed over at least the past 450 years, which provides evidence of the concept of microstructural fading memory. Our results imply that changes in the shape of WIS occur on timescales shorter than COF re-equilibration. The ‘palaeo-fabric’ can somewhat control present-day ice flow, which we suggest may somewhat contribute to the long-term slowdown at WIS. Our findings suggest that seismic anisotropy can provide information on past ice sheet dynamics, and how past ice dynamics can play a role in controlling current deformation.

Utilising Abbott’s work on professions and disciplines we trace the broad development of Social Policy in UK universities over the past 50 years. As with all subjects, Social Policy is enmeshed in continuous boundary protection, and at the same time may seek to extend jurisdiction by laying claim to areas and activities undertaken by others. We draw on a range of sources to inform our analysis including: overviews of contributions to Journal of Social Policy; reviews of selected available UK Social Policy Association documents such as newsletters; reviews of research quality (Research Assessment Exercise/Research Excellence Framework) submissions; and student numbers data. In conclusion we consider whether reassessment of some of the jurisdictional battles of the past 50 years might provide routes forward for the subject to flourish in the current environment.

UK trees require increased conservation efforts due to sparse and fragmented populations. Ex situ conservation, including seed banking, can be used to better manage these issues. We conducted accelerated ageing tests on seeds of 22 UK native woody species, in order to assess their likely longevity and optimize their conservation in a seed bank. Germination at four ageing time points was determined to construct survival curves, and it was concluded that multiple samples within a species showed comparable responses for most species tested, except for Fraxinus excelsior. Of all species studied, one could be classified as very short-lived, four as short-lived and 17 as medium, with none exceeding the medium category. The most important finding of this manuscript is that although some taxonomic trends were observed, the results indicate the need for caution when making broad conclusions on potential seed storage life at a species, genus or family level. Longevity predictions were compared to actual performance of older collections held in long-term storage at the Millennium Seed Bank, Kew. Although most collections remain high in viability in storage after more than 20 years, for short-lived species at least, there is some indication that accelerated ageing predicts longevity in seed bank conditions. For species with reduced potential longevity, such as Fagus sylvatica and Ulmus glabra, additional storage options are recommended for long-term gene banking.

Comparative analyses of welfare systems have largely proceeded on the basis that coherent nation-states exist. This assumption was always problematic – as many theorists have acknowledged – but globalisation processes have added a further dimension to this debate, not least because of the increasing power of global cities that act as coordinating hubs for the global economy. Although residing in nation-states, these cities have a special status flowing from their central role in the global economy with often rather different economic, demographic and social contexts. While there is growing literature on global cities, what the rise of these cities means for social policy and for welfare states remains an underexplored issue. Here we outline some key issues the rise of global cities presents for welfare states before proceeding to illustrate both theoretical and practical issues we highlight through a case study of Mexico City.

The population history of Japan has been one of the most intensively studied anthropological questions anywhere in the world, with a huge literature dating back to the nineteenth century and before. A growing consensus over the 1980s that the modern Japanese comprise an admixture of a Neolithic population with Bronze Age migrants from the Korean peninsula was crystallised in Kazurō Hanihara's influential ‘dual structure hypothesis’ published in 1991. Here, we use recent research in biological anthropology, historical linguistics and archaeology to evaluate this hypothesis after three decades. Although the major assumptions of Hanihara's model have been supported by recent work, we discuss areas where new findings have led to a re-evaluation of aspects of the hypothesis and emphasise the need for further research in key areas including ancient DNA and archaeology.