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The simplified Bernoulli equation may be applied to peak velocity measurements to make non-invasive estimates of pressure gradients. Where Vl = peak velocity proximal to an obstruction
V2 = peak velocity distal to the obstruction.
This equation takes into consideration the velocity of flow on both sides of an obstruction.
Example: Peak velocity measured in the ascending aorta is 3 dsec, peak velocity measured in the left ventricular outflow is 2 dsec.
Gradient across the aortic valve = 4 (32-22) = 4 (9-4) = 20 mmHg.
If V is close to 1 dsec, it can be neglected and then even simpler version of the Bernoulli equation may be used:
P = 4V2
Osmotic adjustment or Osmoregulation - Osmotic Stress If concentration of soluble matter (in the form of minerals and small organic molecules) builds up in the external medium
what are alleles
Explain Sodium alginate Sodium alginate helps in aiding cloud retention and inhibits clarification in orange squash and crush. It has been used as the most efficient stabilizer
why phylum protozoa is called protozoa?
In what ways can we try to protect a species from extinction? We can attempt to protect species from extinction by making it illegal to kill the threatened animals or uproot o
Subphylum Uniramia Uniramia, the largest subphylum of phylum Arthropods includes myriapods and insects. Due to the unbranched nature of the appendages of its members, the sub
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Q. What is Peri-Implant Disease? The term peri-implantitis is used to describe the boneloss around an implant. This may be induced by stress or bacteria or a combination of bot
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