She also echoes (as Zakaria himself did) another Beltway realist's jibe that leftish critics think "every known impediment to the legislative process -- special interest lobbying, the filibuster, macroeconomic conditions, not to mention certain settled beliefs of public opinion -- are but tiny stick huts trembling in the face of the atomic bomb of the presidential speech".
This challenge to global health has prompted calls for renewed efforts to tackle the lifestyle and treatment inertia issues that are known to be impediments to successful prevention of these diseases [ 4].
But the phenomenon is best known as an impediment to new housing.
The difficulties faced by biology teachers when addressing this subject are widely known: due to these impediments, many people do not properly understand or do not accept the theory of evolution (Alters and Nelson 2002; NASIM 2008).
The main stem Columbia River dams are known to impose substantial impediments to Pacific lamprey migration, as there is high attrition at Bonneville Dam and at each of the dams upstream, and tagged adults successfully passing the dams are consistently larger than those that do not (e.g., Keefer et al. 2009).
By then, Wallace had become convinced that the literary contortions for which he was known had become an impediment to this message.
These "robber barons", as they became known, were a serious impediment to trade, and imperial forces had to take costly punitive action to remove them.The relationship between business and the state bears some resemblance to this medieval tussle.
Had a more extensive area been left in a non-revegetated state, the situation may have been different, as distances required for plant and animal recolonisation would be greater, a factor known to be an impediment (Whelan and Main1979).
It is known that the key impediment to the application of QD-based devises is that a good proportion of the QDs may not be active because of the non-radiative recombination through defects and dislocations around the QD-cap interface [29].
(The fact that he played no known instrument was apparently no impediment).
