76 research outputs found

    Motility of the reticulum and rumen of sheep given juice-extracted pasture

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    1. Sheep were fed on different diets of juice-extracted herbage to determine what effect juice-extraction had on reticulo-rumen motility. 2. The frequency of A and B sequences of contraction of the reticulo-rumen were recorded during eating, rumination and inactivity for continuous periods of 24–72 h by using integrated electromyograms obtained from electrodes implanted in the musculature of the reticulum and cranial dorsal rumen. 3. Animals were fed on herbage in which approximately 200 g/kg dry matter had been removed in juice extracted from ryegrass (Lolium perenne), white clover (Trifolium repens), mixed ryegrass–white clover and lucerne (Medicago saliva). 4. Over all the frequency of A sequences of contraction did not differ in animals fed on pressed herbage or the unpressed material from which it was derived, although it was slower during rumination on some of the pressed material. In contrast, the frequency of B sequences was higher on the pressed material. The frequencies of contraction of A and B sequences in animals fed on pressed herbage was related to the activity of the animals in the order eating > rumination > inactivity. 5. Changes in reticulo-rumen motility due to juice extraction were small and the frequencies of A and B sequences of contraction in sheep fed on pressed herbage were in the range encountered in ruminants consuming more conventional foods

    Names, bodies and identities

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    In this article, I argue that the emerging field of the sociology of naming should recognize the fundamental importance of bodies in the range of social practices through which individuals come to have, and to be identified by, names. I introduce the concept of ‘embodied named identity’ to describe the outcome of identificatory practices of naming fundamentally orientated around and rooted in the body. I argue that the concept addresses the neglect of the body within the sociology of names and the neglect of naming within both the sociology of identity and in the sociology of the body. In my elaboration of the value of the concept of embodied named identity for enhancing sociological understanding, I focus on evidence on naming practices in relation to sexed and gendered bodies, racialized and ethnic bodies, bodies, nicknames and characterization, ‘nameless’ bodies and ‘body-less’ names

    Repelling neoliberal world-making? How the ageing–dementia relation is reassembling the social

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    Growing old ‘badly’ is stigmatizing, a truism that is enrolled into contemporary agendas for the biomedicalization of ageing. Among the many discourses that emphasize ageing as the root cause of later life illnesses, dementia is currently promoted as an epidemic and such hyperbole serves to legitimate its increasing biomedicalization. The new stigma however is no longer contained to simply having dementia, it is failing to prevent it. Anti-ageing cultures of consumption, alongside a proliferation of cultural depictions of the ageing–dementia relation, seem to be refiguring dementia as a future to be worked on to eliminate it from our everyday life. The article unpacks this complexity for how the ageing–dementia relation is being reassembled in biopolitics in ways that enact it as something that can be transformed and managed. Bringing together Bauman’s theories of how cultural communities cope with the otherness of the other with theories of the rationale for the making of monsters – such as the figure of the abject older person with dementia – the article suggests that those older body-persons that personify the ageing–dementia relation, depicted in film and television for example, threaten the modes of ordering underpinning contemporary lives. This is not just because they intimate loss of mind, or because they are disruptive, but because they do not perform what it is to be ‘response-able’ and postpone frailty through managing self and risk

    Correlated Genetic and Ecological Diversification in a Widespread Southern African Horseshoe Bat

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    The analysis of molecular data within a historical biogeographical framework, coupled with ecological characteristics can provide insight into the processes driving diversification. Here we assess the genetic and ecological diversity within a widespread horseshoe bat Rhinolophus clivosus sensu lato with specific emphasis on the southern African representatives which, although not currently recognized, were previously described as a separate species R. geoffroyi comprising four subspecies. Sequence divergence estimates of the mtDNA control region show that the southern African representatives of R. clivosus s.l. are as distinct from samples further north in Africa than they are from R. ferrumequinum, the sister-species to R. clivosus. Within South Africa, five genetically supported geographic groups exist and these groups are corroborated by echolocation and wing morphology data. The groups loosely correspond to the distributions of the previously defined subspecies and Maxent modelling shows a strong correlation between the detected groups and ecoregions. Based on molecular clock calibrations, it is evident that climatic cycling and related vegetation changes during the Quaternary may have facilitated diversification both genetically and ecologically

    Imagining bisexual futures: positive, non-normative later life

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    Gerontologists have long noted that people find it hard to imagine themselves growing old. Previous research has also shown that, despite the increased variability and diversity of (post)modern life courses, people still tend to project normative life courses, centring around marriage, childbearing and grandchildren. It has been argued that this tendency, combined with the scarcity of representations of older queer people, creates particular difficulties for younger queer people in imagining later life positively. This paper presents findings from a study where members of a bisexual community used creative methods to imagine their futures. Predominantly, they created positive and non-normative futures
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