• Polarisation hinders both growth and human development • Measuring income polarisation provides a distinct insight into the link between growth and human development • Policy recommendations based on polarisation measures will differ from those based on conventional inequality measures, and are likely to be more nuanced S everal countries, particularly in Asia, have seen soaring economic grow...

The Hα-line intensity, linear and circular impact polarisation were calculated during the impulsive phase of flares using the density matrix approach. Depolarising effects of diffusive radiation and collisions with thermal electrons are considered for a 3 levels Hydrogen model atom with Zeeman splitting in weak and intermediate magnetic fields. Electron beam energy and angular distributions in ...

We compare two rotationally invariant decomposition techniques on linear polarisation data: the spin-2 spherical harmonic decomposition in two opposite parities, the Eand B-mode, and the multiscale analysis of the gradient of linear polarisation, |∇P |. We demonstrate that both decompositions have similar properties in the image domain and the spatial frequency domain. They can be used as compl...

We present polarisation profiles for 48 southern pulsars observed with the new 10cm receiver at the Parkes telescope. We have exploited the low system temperature and high bandwidth of the receiver to obtain profiles which have good signal to noise for most of our sample at this relatively high frequency. Although, as expected, a number of profiles are less linearly polarised at 3.1 GHz than at...

The mid infrared polarisation properties of four Ultraluminous Infrared Galaxies (ULIRGs) have been investigated by broad band filter observations with the ISOCAM instrument on board the Infrared Space Observatory (ISO). The wavelength region from 5 to 18μm was selected where the emission from the putative torus peaks. We report detection of polarisation for all ULIRGs studied. The fractional p...

The polarisation conversion of a linear polarized electromagnetic wave incident onto a two-dimensional (2D) electron system at an angle θ is theoretically studied. We consider the 2D system located at the interface between two dielectric media with different dielectric constants. An external dc magnetic field is assumed to be directed along the normal to the 2D electron layer. In such a configu...

An air-core holey fibre design that supports a single-polarisation circularly symmetric mode is presented. The mechanism that isolates the single polarisation, the advantages of the design and fabrication efforts to date will be discussed.

Context. The Hinode mission has revealed copious amounts of horizontal flux covering the quiet Sun. Local dynamo action has been proposed to explain the presence of this flux. Aims. We sought to test whether the quiet Sun flux detected by Hinode is due to a local or the global dynamo by studying long-term variations in the polarisation signals detectable at the disc centre of the quiet Sun betw...

We present new medium-resolution spectropolarimetric observations of HD 45677 in the B and R-bands. A change in polarisation is detected across Hα, Hβ and Hγ confirming that the ionised region around the star is aspherical. (Q,U) points associated with these emission lines occur away from the continuum, defining a polarisation vector which points in the same direction for each of the lines at a...