1.   This needs to be coupled with a physical form which does not easily clog and impede water flow.

2.   And men with diabetes often experience impotence earlier in life because complications of the disease can impede blood flow.

3.   Atherosclerosis is a disease in which cholesterol is deposited in the walls of arteries, impeding blood flow and leading to strokes and heart attacks.

4.   Because a media filter impedes air flow more than a standard filter, it may be necessary to compensate by increasing the blower speed.

5.   But less oxygen is supplied, in part because the coronary arteries constrict, impeding blood flow.

6.   He added that picture-taking was allowed at the White House if it does not impede the flow of visitors.

7.   In places, islands of upthrust rock impede the flow of these streams, forcing them to the surface, along with their cargoes of meteorites.

8.   Lack of grain storage, and therefore supplies, creates the potential for price manipulation and impedes the flow of grain for export.

9.   Objects on the ground impede air flow.

10.   Partitions of perforated metal could organize the galleries without impeding the flow of space.