Exact(2)
Probably the biggest obstruction is the fragmented governmental structure with its overlapping jurisdictions.
Rod Paige, a former federal secretary of education, said in an interview that he viewed teachers' unions as the "biggest obstruction to school reform anywhere".
Similar(54)
The trunk was a big obstruction.
The Pentium 4 the last "single-core" desktop processor clocked up 3.2 billion cycles a second.Disposing of this heat is a big obstruction to further miniaturisation and higher speeds.
These would use light for their internal communications, and thus continue the inexorable progress of Moore's Law that the speed of silicon chips doubles every 18 months.Unfortunately that one word, silicon, has been a big obstruction to the development of commercial optoelectronics.
Israel struggles with so many bigger obstructions to religious pluralism, like the ultra-Orthodox legal chokehold over marriage, divorce and conversion.
Stalin knew they were the biggest human obstruction to his plan, cooked up with Hitler, to wipe Poland from the map.The plane crash was no decapitation.
Now, the biggest impediment to weeding out poor teachers is not obstruction by the union but inadequate supervision by principals.
The one coming up was Class IV: major obstructions, big, unavoidable waves, distinct risk of flipping — in short, fun.
Moreover, the importance of infarct size for the prediction of functional deterioration in acute phase is almost four times bigger than associated with microvascular obstruction, but the additive protective effect on both components visible with cyclosporine A infusion but not with postconditioning was mandatory for the effective preservation of left ventricular function.
Accurate and objective assessment of the severity of airway obstruction is clearly the biggest challenge in acute paediatric asthma research.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com