A small number of RBCs are normally present in urine and usually result in a negative chemical test. An increased amount of hemoglobin and/or increased number of RBCs are detected as a positive chemical test result.
gigahertz. n, pl-hertz. 1. (Units) a unit of frequency equal to 10 9 hertz. Symbol: GHz.
The Hertz part of the word is a measure of frequency in cycles per second. So one hertz = 1 cycle (complete action) per second. 100 hertz means 100 times a second... One Gigahertz equals one Billion cycles per second. So your 2.4Ghz processor cycles at roughly 2,400,000,000 times per second.