This research was undertaken by researchers at Aberystwyth University and was funded through the 2009 round of the New Ideas Fund research grant.
Cafodd y gwaith ymchwil hwn ei wneud gan ymchwilwyr ym Mhrifysgol Aberystwyth a chafodd ei ariannu drwy gylch ceisiadau 2009 ar gyfer grant ymchwil y Gronfa Syniadau Newydd.