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Calcifying fibrous tumor of the pleura (CFTP) is a rare mesenchymal tumor of unknown pathogenesis. The diagnosis often requires… Expand We present the rest-frame optical spectral energy distribution (SED) and stellar masses of six Herschel-selected gravitationally… Expand Context. Solar flares radiate energy at all wavelengths, but the spectral distribution of this energy is still poorly known… Expand Different extracts and fractions of five selected indigenous South African medicinal plants, namely, Cissampelos capensis… Expand Abstract. In this paper, we analyse in detail two famous space weather events; a railway problem on 13–14 July 1982 and a power… Expand Abstract
Fiber – or intermediate drift – bursts are a continuum fine structure in some complex solar radio events. We present the… Expand The International Global Navigation Satellite Systems (GNSS) and the South African ground based network of dual frequency Global… Expand A major two-ribbon X17 flare occurred on 28 October 2003, starting at 11:01 UT in active region NOAA 10486. This flare was… Expand An X17 class (GOES soft X-ray) two-ribbon solar flare on October 28, 2003 is analyzed in order to determine the relationship… Expand  The extraordinary solar storms between 18 October 2003 and 5 November 2003 include over 140 flares, primarily from two… Expand