Governments rigidly regulate movement of foreigners into their countries; they should do the same for money.
America's local authorities, like their counterparts in many parts of the world, issue far too few taxi licences and rigidly regulate taxi fares.
In the Oscar-winning drama A Separation, the Iranian director Asghar Farhadi painted a piercingly insightful picture of a failing marriage framed within the strictures of a rigidly regulated society – the personal and political intertwined, with painful consequences.
Under ESGD, the emission reduction task can be achieved with lowest electricity purchasing cost, because the generation quantity and price are rigidly regulated by authorities.
In the case of TDG, which binds AP-sites very rigidly, dissociation is regulated by modification of a C-terminal lysine residue with small ubiquitin-like modifiers (SUMOs).
In the off-line world of black cabs, where fares are regulated and rigidly determined in advance, that's impossible or very difficult to do.
The constant tendency for faster replicating cells to displace others is rigidly controlled by systems that regulate cell division and by surveillance systems that kill cells that are not where they belong.
Such systems regulate behaviors in ways that need not be rigidly innate, but depending on the organism can adapt in greater or lesser degrees to changes in environmental circumstances, provided that these do not deviate too much from the organism's environment of evolutionary adaptedness.
Visa regulations for visiting Americans are being enforced more rigidly.
