While good for consumers, they are onerous to the content providers and are difficult to comply with.
In case of RPs labelled with short or very short half-life radionuclides (e.g. C-11 or Ga-68), it might be difficult to comply with European Union (EU) guidelines, that often claim for radioactivity at Activity Reference Time (ART) to be defined for the final radiopharmaceutical product, and process validation is then used to establish a suitable radioactivity concentration range.
Over at ThinkProgress, Brad Johnson pulls video of Massey Energy CEO Don Blankenship registering complaints in June of 2009 that the safety rules governing mines were "difficult to comply with" and "nonsensical".
Advancements in TB research also give us hope -- a new rapid diagnostic test and new treatments are being developed, which is key as the current treatments take at least 6 months to complete and are difficult to comply with; and while it won't be ready before 2020, there is promising work being done to develop a vaccine.
When city of Oakland officials wanted to narrow a wide road near a major transit station and add two bike lanes, they realized it would be difficult to comply with the environmental law's rules and didn't proceed, said Jason Patton, Oakland's bike program manager.
However, exercise programs were difficult to comply with [ 38].
They will help medical authorities and policy makers to examine how the act of parliament is applied and to understand more clearly which features of the current law are difficult to comply with.
Anecdotally, some parents say this is difficult to comply with and Figure 1 illustrates the shift in this practice as the infant gets older, with 68% room sharing at 3 weeks declining to 38% at 23 weeks.
By this stage, Holden's 24 year old six-cylinder was thoroughly outmoded and would have been difficult to re-engineer to comply with pending emission standards and the introduction of unleaded fuel.
Supporters of the dredging plan worry that the company hopes to have the order changed to be so difficult to comply with that the project will be derailed.
