605 research outputs found

    First impressions: introducing the 'Real Times' third sector case studies

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    ‘Real Times’ is the Third Sector Research Centre’s qualitative longitudinal study of third sector organisations, groups and activities. Over a three year period the study is following the fortunes, strategies, challenges and performance of a diverse set of fifteen ‘core’ case studies of third sector activity, and their relations with a number ‘complementary’ case studies. This report introduces the core case studies through summary sketches, and provides a descriptive account of the research up to the end of the first wave of fieldwork

    Developing an e-infrastructure for social science

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    We outline the aims and progress to date of the National Centre for e-Social Science e-Infrastructure project. We examine the challenges faced by the project, namely in ensuring outputs are appropriate to social scientists, managing the transition from research projects to service and embedding software and data within a wider infrastructural framework. We also provide pointers to related work where issues which have ramifications for this and similar initiatives are being addressed

    Analysis of Regolith Simulant Ejecta Distributions from Normal Incident Hypervelocity Impact

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    The National Aeronautics and Space Administration (NASA) has established the Constellation Program. The Constellation Program has defined one of its many goals as long-term lunar habitation. Critical to the design of a lunar habitat is an understanding of the lunar surface environment; of specific importance is the primary meteoroid and subsequent ejecta environment. The document, NASA SP-8013 'Meteoroid Environment Model Near Earth to Lunar Surface', was developed for the Apollo program in 1969 and contains the latest definition of the lunar ejecta environment. There is concern that NASA SP-8013 may over-estimate the lunar ejecta environment. NASA's Meteoroid Environment Office (MEO) has initiated several tasks to improve the accuracy of our understanding of the lunar surface ejecta environment. This paper reports the results of experiments on projectile impact into powdered pumice and unconsolidated JSC-1A Lunar Mare Regolith simulant targets. Projectiles were accelerated to velocities between 2.45 and 5.18 km/s at normal incidence using the Ames Vertical Gun Range (AVGR). The ejected particles were detected by thin aluminum foil targets strategically placed around the impact site and angular ejecta distributions were determined. Assumptions were made to support the analysis which include; assuming ejecta spherical symmetry resulting from normal impact and all ejecta particles were of mean target particle size. This analysis produces a hemispherical flux density distribution of ejecta with sufficient velocity to penetrate the aluminum foil detectors

    Comparison of Ejecta Distributions from Normal Incident Hypervelocity Impact on Lunar Regolith Simulant

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    The National Aeronautics and Space Administration (NASA) is progressing toward long-term lunar habitation. Critical to the design of a lunar habitat is an understanding of the lunar surface environment; of specific importance is the primary meteoroid and subsequent ejecta environment. The document, NASA SP-8013, was developed for the Apollo program and is the latest definition of the ejecta environment. There is concern that NASA SP-8013 may over-estimate the lunar ejecta environment. NASA's Meteoroid Environment Office (MEO) has initiated several tasks to improve the accuracy of our understanding of the lunar surface ejecta environment. This paper reports the results of experiments on projectile impact into powered pumice and unconsolidated JSC-1A Lunar Mare Regolith stimulant (JSC-1A) targets. The Ames Vertical Gun Range (AVGR) was used to accelerate projectiles to velocities in excess of 5 km/s and impact the targets at normal incidence. The ejected particles were detected by thin aluminum foil targets placed around the impact site and angular distributions were determined for ejecta. Comparison of ejecta angular distribution with previous works will be presented. A simplistic technique to characterize the ejected particles was formulated and improvements to this technique will be discussed for implementation in future tests

    Digitizing Sacks? Approaching social media as data

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    During the course of this article, we explore ethnomethodological principles in relation to approaching social media as data. More specifically, we consider the extent to which the work of Harvey Sacks and his rich intellectual legacy might inform this nascent field of empirical inquiry. This exploration is realised in the context of interdisciplinary research at the interface of social and computational science. Drawing from an extensive range of empirical projects into social media we reflect on the efficacy and limitations of these principles (Sacks, 1992) for understanding social media interaction as open data and practical action in the digital age

    The biogeography of red snow microbiomes and their role in melting arctic glaciers

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    The Arctic is melting at an unprecedented rate and key drivers are changes in snow and ice albedo. Here we show that red snow, a common algal habitat blooming after the onset of melting, plays a crucial role in decreasing albedo. Our data reveal that red pigmented snow algae are cosmopolitan as well as independent of location-specific geochemical and mineralogical factors. The patterns for snow algal diversity, pigmentation and, consequently albedo, are ubiquitous across the Arctic and the reduction in albedo accelerates snow melt and increases the time and area of exposed bare ice. We estimated that the overall decrease in snow albedo by red pigmented snow algal blooms over the course of one melt season can be 13%. This will invariably result in higher melt rates. We argue that such a ‘bio-albedo' effect has to be considered in climate models

    Disability and Bodies as Bearers of Value

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    This paper considers the relevance of Pierre Bourdieu's conceptions of the body to the development of disability theory. We begin by discussing the limitations of reductive conceptions of disability. In so doing, we consider how far Bourdieu's (1990) concept of habitus offers a way of bringing an analysis of the body to bear upon an understanding of the social inequalities which are core to the lives of disabled people. Through focus groups with disabled people, the paper explores aspects of disabled people's corporeal identities, feelings, and (embodied) encounters in a range of social settings. The research shows that disabled people's lives are connected to different 'valuations' attributed to corporeal forms, and to systems of signification and representation which underpin them. We conclude by reaffirming the need to consider Bourdieu's ideas in helping in the development of disability theory

    Concert recording 2016-11-19a

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    [Tracks 1-2]. Percussion music / Michael Colgrass -- [Track 3]. Jesus loves me / Chad Floyd -- [Track 4]. Evergreen / Ben Finley -- [Track 5]. Eight pieces for four timpani. VIII. March / Elliott Carter -- [Tracks 6-7]. Irish spirit / Bill Douglas -- [Track 8]. Land / Takatsugu Muramatsu -- [Track 9]. Over the rainbow / Harold Arlen arranged by Robert Oetomo -- [Track 10]. Eight pieces for timpani. V. Improvisation / Elliott Carter -- [Track 11]. Catching shadows / Ivan Trevino
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