More than a dozen cities have introduced restrictions of one sort or another.
Take Tehran, for instance, where traffic authorities have introduced restrictions on the volume of cars on its downtown roads in a bid to reduce congestion and pollution.
However, the frenzy by agents to take advantage of the promise of a China focusing firmly on soccer, and speculating to the highest possible transfer fee, was thwarted after the CSL introduced restrictions on the import of players in the summer of 2017.
The next day, the central bank introduced restrictions on the purchase of foreign currency within Iceland.
Berlin, among other cities, has introduced restrictions to limit the gentrifying impact of holiday rental website Airbnb, which is seen as contributing to the shortage of affordable residences.
Seven water companies are introducing restrictions on water use following one of the driest two-year periods on record, with domestic customers facing a £1,000 fine if they use their hosepipe in defiance of the ban.
A combination of worries about cheap labour and the potentially magnetic effect of generous welfare benefits in western Europe has led a succession of countries to introduce restrictions on newcomers' rights to work or to claim benefits.
Many of the cities introducing restrictions on food-sharing are located in Florida and southern California, where warm weather tends to attract people who have no choice but sleep outdoors.
Aspartic acid mutations at codons 12 and 13 were confirmed by means of artificially introduced restriction fragment length polymorphism.
Primers F and R were used for qPCR amplification *Underlined sequences correspond to introduced restriction sites For the construction of the single acyltransferase overexpression mutants (LRO1, ARE1, DGA1, DGA2), the genes were placed under the control of the yeast TEF constitutive promoter (Muller et al. 1998).
