Some impediments remain, in particular with respect to corrections for initial isotopic disequilibrium (younger samples) and the construction of internal chronologies (older samples) but these are areas of intense research activity and are likely to see significant advances in the near future.
It is often assumed that "l'exception culturelle" has propped up the French film industry by setting up impediments to foreign, in particular American, imports.
This paper discusses some of the key impediments to progress including in particular, the lack of application of software engineering methodologies, the absence of usable standards, and the failure to acknowledge the impact of record systems on the healthcare system itself.
Assessing RIC for mature T-cell lymphomas, and CTCL in particular, has the additional impediment of the rarity of the diagnosis and the limited data on allo-HCT for these diseases in general.
However, there exist important obstacles to the broad expansion of autonomous robots in the field; reliability, safeguarding, system complexity, and cost-efficiency in particular rank high among the impediments to overcome before prototypes move into the production stage.
River conditions, draft restrictions in particular, generally form a major impediment.
In particular, it is unknown if the observed impediments to learning were the result of both proactive and retroactive interference, or proactive interference alone.
In particular, it reveals the practical limitations of wireless energy transfer, major impediments to sustainable energy operation, as well as indicates the way forward. .
In particular, I feel the responsibility to remind us all about the impediments to progress back then, so that we have a better idea about the impediments to progress today.
