But Mr Robb seems to have plumbed pretty much every source available; and he finds enough evidence that in the 19th-century world, as in much of today's, the gay life, though it was often hard and constrained, could still be worth the living.
If even the United States, with its democratic checks, balances and institutions, finds it hard to constrain Big Oil, what are the chances that Kazakhstan, carved just 19 years ago from Soviet collapse, can square up to challenges posed by a huge influx of money chasing huge deposits of oil, gas, uranium and a host of other natural resources?
Even with a good crustal model it is hard to constrain the focal mechanism of an event with ten-polarity data.
In comparison to PLS modeling with EMSC pretreatment of the spectra, the hard model constrained MCR ALS algorithm results in an improved prediction of the concentration of the API together with a higher robustness of the calibration models.
In 2009, the State Department pressured its delegation to the Australia Group, the 40-nation organization aimed at stopping the spread of chemical weapons, to push harder to constrain such trade.
Our derivation in Section 4.1 shows that leakage-bounded transmit optimization as proposed in (P1) is in general an NP-hard quadratically constrained quadratic optimization problem, which cannot be solved efficiently.
And things will probably be more difficult next time because: the easier cuts have been made; public sector spending will be harder to constrain if private sector pay is rising; the pensions bill keeps going up; and demographic change towards more older people is a slow-burning but very significant pressure.
While Trump's militarism, unfortunately, may be harder to constrain, the fact that the air strikes were fairly limited may be indicative that he recognizes that the American public is not interested in the United States getting involved in another major Middle Eastern war.
Unlike many current methods, the proposed approach does not require feasible initial point and can handle hard constraints via a novel optimization-based constrained sampling scheme.
