An acromioplasty involves shaving of the undersurface of the acromion. The acromion is a projection of bone extending from the shoulder blade out over the top of the shoulder joint and provides attachment for muscles around the shoulder including the trapezius and deltoid muscles.
The reason DaimlerChrysler's Global Electric Motorcars (GEM) subsidiary can be in business is the National Highway Traffic Safety Administration's 1998 creation of the Low Speed Vehicle (LSV) standard. LSV is sort of a cheat, a way to make electric vehicles viable by eliminating every obstacle in their way.
As defined here, a gem is any jewel, whether stone or pearl, having value and beauty that are intrinsic. A gemstone or gem material is a stone or material from which a gem may be cut. Gems are used for personal adornment, display, or in manufactured objects of art because they possess beauty, rarity, and durability.