We use the gravitoelectromagnetic approach to solutions of Einstein's equations in weak-field and slow-motion approximation investigate impact General Relativity on galactic dynamics. In particular, we focus a class for gravitomagnetic field, show that, contrary what is expected, they may introduce non negligible corrections Newtonian velocity profile. These are homogeneous (HS) i.e. with vanis...

Despite the central importance often placed on expectations in defining norms, are routinely invoked a fleeting manner. When they are, utilised many different ways, without anyone acknowledging this, which creates confusion. The article argues that should not be viewed as playing singular role norm process. Instead, it puts forward three roles play dynamics: (i) norms embody expectations, (ii),...