Even a 1% change in flow rate, if persistent, can point to a leak.
For years now, Turkey has lobbied to join the European Union, but its human rights record has been a persistent sticking point.
The latest poll of polls has found there is still a persistent 14 point gap between the no and yes vote, with the no vote on average at 57% compared with 43% for yes, despite another small rise in yes support, with just over three weeks to go before referendum day on 18 September.
Cyclic relocation of a highly persistent convergence point over the entire Curonian Spit suggests that this landform is in almost perfect dynamical equilibrium in the simulated approximation of the contemporary wave climate.
The city disagreed, calling the problems persistent and pointing out that it got the lowest score in the city this year on the annual A-to-F report card.
Even though oil is the main culprit and long-term inflation expectations have not moved much, the ECB's desire to pre-empt persistent inflation points clearly to higher interest rates in July.The Fed seems much less likely to raise rates.
This relates to the results by Mookherjee et al. (2010), who have argued that spatial segregation will lead to persistent reference points, i.e., aspirations traps.
Please note that the persistent scatterer points appear at building foundations, at building roofs as well as at the road surface.
As Forbes notes, persistent rumors pointed to the white-label inclusion of SwiftKey's keyboard tech in BlackBerry 10, though neither SwiftKey nor BlackBerry ever officially weighed in on the matter.
