In doing so it has posed considerable challenges to how we assess and prevent harmful chemical exposures.
A show that emphasised the ancient tradition of the haj, one of the five pillars of Islam, would be a source of pride for Muslims and a clear reminder of Saudi Arabia's pre-eminent position in the Islamic world.But organising the show has posed considerable challenges.
This increase and the influx of severe extremity infection due to MDR Acinetobacter species posed considerable challenges.
Use of an active comparator, although preferred, would have posed considerable challenges to keep the study blind because of the unique mode of delivery and smell of methoxyflurane.
The lack of formal risk assessment methods for pathogens has posed considerable challenges to regulatory agencies, such as in the case of the Food and Drug Administration's attempts to assess risks to human health associated with use of antimicrobials in animal feeds (Aarestrup et al. 2008).
It can hardly be described as merely "pretty," and it still poses considerable challenges, both technical and dramaturgical, to players and listeners.
The fact that many different primary and secondary care clinicians, including general and specialist medical practitioners, physiotherapists, osteopaths and chiropractors, who manage LBP, hold a range of attitudes and beliefs about the condition and its management, poses considerable challenges and frustrations, for patients as well as for practitioners.
T2DM poses considerable challenges to healthcare systems because it is among the leading causes for ambulatory care, hospital admissions and death [ 3].
Climate change poses considerable challenges and addressing its health consequences requires careful incorporation into health services planning (56).
While the above is not an exhaustive assessment of species concepts (see also Table 2), it does illustrate that while the study of plant invasions requires a detailed understanding of taxonomy, invasive species pose considerable challenges, and many opportunities, to taxonomists.
Global change poses considerable challenges for ecosystems and their managers.
