Bethesda, MD. 1  Aledade has gathered some of the brightest, most innovative, hard-working, committed people I have ever met and focused them on this incredible task of changing the face of primary care, practice by practiceâ¦changing the way care is delivered and getting patients more involved in their care.
The primary eruption characteristic used to determine the volcanic explosivity index is the volume of pyroclastic material ejected by the volcano. Pyroclastic material includes volcanic ash, tephra, pyroclastic flows, and other types of ejecta.
Phosphorus Saturation Index (PSI) The Phosphorus Saturation Index (PSI) is a method for evaluating soils for their capacity to retain phosphorus. It is a simple measurement of the amount of phosphorus in the soil compared to iron and aluminum. The premise is that phosphate ions (PO3-)âthe biologically available form of phosphorusâare highly attracted to iron and aluminum.