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Search: authors:"Julia Riley"

4 papers found.
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Gender, variation in opioid receptor genes and sensitivity to experimental pain

Background Pain tolerance is subject to considerable inter-individual variation, which may be influenced by a number of genetic and non-genetic factors. The mu, delta and kappa opioid receptors play a role in pain perception and are thought to mediate different pain modalities. The aim of this study was to explore associations between pain thresholds and gender and genetic...

Measurements of the cosmological evolution of magnetic fields with the Square Kilometre Array

We investigate the potential of the Square Kilometre Array (SKA) for measuring the magnetic fields in clusters of galaxies via Faraday rotation of background polarized sources. The populations of clusters and radio sources are derived from an analytical cosmological model, combined with an extrapolation of current observational constraints. We adopt an empirical model for the...

The TexOx-1000 redshift survey of radio sources I: the TOOT00 region

We present optical spectroscopy, near-infrared (mostly K-band) and radio (151-MHz and 1.4-GHz) imaging of the first complete region (TOOT00) of the TexOx-1000 (TOOT) redshift survey of radio sources. The 0.0015-sr (∼5 deg2) TOOT00 region is selected from pointed observations of the Cambridge Low-Frequency Survey Telescope at 151 MHz at a flux density limit of ≃100 mJy...

The structure and dynamics of two tailed sources in cluster 0648 + 19

Observations at five radio frequencies are used to determine the structure and spectra of a complex region in the direction 0648 + 19. We show that it consists of three separate radio sources; two tailed sources in one cluster, and an unrelated classical double. We have used spectral-ageing calculations to derive ages and velocities for the two tailed sources. Combining these...