Systems with simultaneous input and state delay have remained a challenge, although exponential stabilization has been solved for systems that are not exponentially unstable, such as chains of delayed integrators and systems in the 'feedforward' form.
That has created a daisy chain of delays and cancellations that has frustrated builders, homeowners and real estate agents.
Without clubs, London is nothing more than a series of William Hills and tat shops, a glorified never-ending chain of delayed Tubes and packed busses.
As administrators in major hospitals around the country know well, a dawdling patient transporter can set off a chain reaction of delays throughout the institution.
Yet despite the somewhat reflexive distrust of rail travel, there did seem to be a grudging acknowledgment that trains will play a much larger role in moving people from here to there, and could also help ease growing congestion problems at major airports, which can cause a chain reaction of delays throughout the system.
Existing solutions don't yet meet the mark, prompting leaders of one rapidly growing coffee chain to delay the introduction of an automated point of sale system, finding it undermined the connection they wanted to make with their customers.
Gen. Stephen Clark of the Air Force, described a chain of errors, delays and conflicting protocols between American and NATO troops that ultimately prevented the United States warplanes from identifying the Pakistanis as friendly forces until 24 were dead and 13 others were wounded.
However, if these flocks were left to develop further chains of infection (due to delays in disease reporting and depopulation) the within-flock R0 estimate would be different.
On one hand, the addition of co-solvent can enhance solubility of growing chains and delay the precipitation of them, leading to fewer numbers of nuclei.
A ball of fire that erupted on the subway tracks here Thursday injured no one but set off a chain of rush-hour delays that have become maddeningly common.
We agree with the editorial that "other outcomes, such as quality of life, may well be more important in this debate than mortality", but we find it unlikely that separation of families, longer distances, longer chains of referral and probably longer doctors' delays will effect quality of life positively.
