All of these places, the magazine reports, conform to data that shows the preponderance of urban growth taking place outside the old urban cores. But in its sweeping claim of a âgreat suburbanization,â the report seems to sidestep a central question: What is a suburb, anyway?
Oxygen saturation (symbol SO2) is a relative measure of the amount of oxygen that is dissolved or carried in a given medium.It can be measured with a dissolved oxygen probe such as an oxygen sensor or an optode in liquid media, usually water. The standard unit of oxygen saturation is percent (%).n medicine, oxygen saturation refers to oxygenation, or when oxygen molecules (O 2) enter the tissues of the body. In this case blood is oxygenated in the lungs, where oxygen molecules travel from the air and into the blood.
Pulse oximetry is a simple, cheap, and noninvasive procedure used to measure the level of oxygen (or oxygen saturation) in the blood.Oxygen saturation should always be above 95 percent. However, oxygen saturation may be lower if you have a respiratory disease or congenital heart disease.. Understand the reasons for the procedure. Pulse oximetry is used to assess oxygen saturation in the blood for a variety of reasons. It is often used in surgeries and other procedures that involve sedation (such as a bronchoscopy and to make any adjustments of supplemental oxygen.