Many cities in the Global South are structurally different from Northern, particularly American, on which much of urban sociology’s conceptual apparatus has been based. Thus, depicting them terms a standard vocabulary risks imposing an inappropriate way seeing. We need that is able to accommodate their experience. This special issue contributes work building vocabulary. select five keywords soc...

In a heterogeneous society with two social groups possessing competing social norms, members of the relatively worse-off group face an incentive to adopt the social norms of the better-off group and assimilate into it. I present a theory in which the cost of assimilation is endogenous and strategically chosen by the better-off group in order to screen those who wish to assimilate. In equilibriu...

Plants assimilate inorganic sulphate for the bio­ synthesis of sulphur containing compounds. The enzymes required for reduction are found pre­ dominantly in the plastids which provide the necessary energy and the reductants. Sulphate re­ duction like nitrate or carbon dioxide assimilation is endergonic; for comparison, N 0 3 reduction to ammonia requires +347 kJ mol1 and C 0 2 re­ duction +478 ...