Non-time-critical scheduled medications â these are medications where. early or delayed administration within a specified range of either 1 or 2. hours should not cause harm or result in substantial sub-optimal therapy. or pharmacologic effect.
Slate is a low grade metamorphic rock generally formed by the metamorphosis of mudstone / shale, or sometimes basalt, under relatively low pressure and temperature conditions.
Slate. Jonathan Zander. Formed millions of years ago, slate and shale rocks have served as important materials throughout human history. Slate has been used in construction and household items, while shale contains petroleum and other minerals that can be extracted for commercial use. Scientists have determined that most slates were originally clay sediments deposited by water.