1,368 research outputs found

    Are Women Beach Volleyballers ‘Too Sexy for Their Shorts?’

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    This is a paper on the philosophy of sport or the ethics of sport more specifically. It provides a critical assessment of a particular feminist approach to a specific issue in the ethics of sport with regard to what some feminist scholars refer to as the ‘sexualizing’ of women in sport with particular attention paid to women beach volleyballers

    Auslegung: A journal of philosophy, volume 14, number 1 (winter, 1987) book review

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    Review of William J. Prior's "Unity and Development in Plato's Metaphysics

    Description and calibration of the Langley unitary plan wind tunnel

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    The two test sections of the Langley Unitary Plan Wind Tunnel were calibrated over the operating Mach number range from 1.47 to 4.63. The results of the calibration are presented along with a a description of the facility and its operational capability. The calibrations include Mach number and flow angularity distributions in both test sections at selected Mach numbers and tunnel stagnation pressures. Calibration data are also presented on turbulence, test-section boundary layer characteristics, moisture effects, blockage, and stagnation-temperature distributions. The facility is described in detail including dimensions and capacities where appropriate, and example of special test capabilities are presented. The operating parameters are fully defined and the power consumption characteristics are discussed

    Harmonization of space-borne infra-red sensors measuring sea surface temperature

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    Sea surface temperature (SST) is observed by a constellation of sensors, and SST retrievals are commonly combined into gridded SST analyses and climate data records (CDRs). Differential biases between SSTs from different sensors cause errors in such products, including feature artefacts. We introduce a new method for reducing differential biases across the SST constellation, by reconciling the brightness temperature (BT) calibration and SST retrieval parameters between sensors. We use the Advanced Along-Track Scanning Radiometer (AATSR) and the Sea and Land Surface Temperature Radiometer (SLSTR) as reference sensors, and the Advanced Very High Resolution Radiometer (AVHRR) of the MetOp-A mission to bridge the gap between these references. Observations across a range of AVHRR zenith angles are matched with dual-view three-channel skin SST retrievals from the AATSR and SLSTR. These skin SSTs act as the harmonization reference for AVHRR retrievals by optimal estimation (OE). Parameters for the harmonized AVHRR OE are iteratively determined, including BT bias corrections and observation error covariance matrices as functions of water-vapor path. The OE SSTs obtained from AVHRR are shown to be closely consistent with the reference sensor SSTs. Independent validation against drifting buoy SSTs shows that the AVHRR OE retrieval is stable across the reference-sensor gap. We discuss that this method is suitable to improve consistency across the whole constellation of SST sensors. The approach will help stabilize and reduce errors in future SST CDRs, as well as having application to other domains of remote sensing

    Development of a tool to support person-centred medicine-focused consultations with stroke survivors

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    Objective: To develop a tool to support medicine-focused person-centred consultations between community pharmacists and stroke survivors. Method: Semi-structured interviews with 15 stroke survivors and 16 community pharmacists were conducted. Thematic analysis of the data was performed and emerging themes examined to determine their relevance to the principles of delivering person-centred care. Findings were used to generate a framework from which a consultation tool was created. Face validity and the feasibility of using the tool in practice were explored with participating pharmacists. Results: Three major themes were identified; personal, process and environmental factors. A tool, in two parts, was developed, A ‘Getting to know me’ form which would help the pharmacist to appreciate the individual needs of the stroke survivor and a consultation guide to facilitate the consultation process. Pharmacists considered that both were useful and would support a person-centred medicine-focussed consultation. Conclusion: A consultation tool, reflecting the needs of stroke survivors, has been developed and is feasible for use within community pharmacy practice. Practice implications: Pharmacists must recognise the individual needs of stroke survivors to ensure that they provide consultations which are truly person-centred. The tool developed could support medicine-related consultations with patients with other long term conditions

    Independent uncertainty estimates for coefficient based sea surface temperature retrieval from the Along-Track Scanning Radiometer instruments

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    We establish a methodology for calculating uncertainties in sea surface temperature estimates from coefficient based satellite retrievals. The uncertainty estimates are derived independently of in-situ data. This enables validation of both the retrieved SSTs and their uncertainty estimate using in-situ data records. The total uncertainty budget is comprised of a number of components, arising from uncorrelated (eg. noise), locally systematic (eg. atmospheric), large scale systematic and sampling effects (for gridded products). The importance of distinguishing these components arises in propagating uncertainty across spatio-temporal scales. We apply the method to SST data retrieved from the Advanced Along Track Scanning Radiometer (AATSR) and validate the results for two different SST retrieval algorithms, both at a per pixel level and for gridded data. We find good agreement between our estimated uncertainties and validation data. This approach to calculating uncertainties in SST retrievals has a wider application to data from other instruments and retrieval of other geophysical variables

    Stability assessment of the (A)ATSR sea surface temperature climate dataset from the European Space Agency Climate Change Initiative

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    Sea surface temperature is a key component of the climate record, with multiple independent records giving confidence in observed changes. As part of the European Space Agencies (ESA) Climate Change Initiative (CCI) the satellite archives have been reprocessed with the aim of creating a new dataset that is independent of the in situ observations, and stable with no artificial drift (<0.1 K decade−1 globally) or step changes. We present a method to assess the satellite sea surface temperature (SST) record for step changes using the Penalized Maximal t Test (PMT) applied to aggregate time series. We demonstrated the application of the method using data from version EXP1.8 of the ESA SST CCI dataset averaged on a 7 km grid and in situ observations from moored buoys, drifting buoys and Argo floats. The CCI dataset was shown to be stable after ~1994, with minimal divergence (~0.01 K decade−1) between the CCI data and in situ observations. Two steps were identified due to the failure of a gyroscope on the ERS-2 satellite, and subsequent correction mechanisms applied. These had minimal impact on the stability due to having equal magnitudes but opposite signs. The statistical power and false alarm rate of the method were assessed
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