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Haemodynamics : The type of valves chosen should have excellent haemodynamics. In studies at rest and on exercise the valve should produce only acceptable diastolic gradients in the mitral position and systolic gradient in the aortic position. This will depend mainly on the effective orifice area (EOA) of the particular valve.
Prosthetic Valve haemodynamics
A high profile valve like Starr-Edward may cause problems if not properly used. In mitral stenosis with small left ventricle such a valve is better avoided. Similarly when the ascending aorta is narrow it has to be enlarged to accommodate a Stm-Edward valve.
Biological Nitrogen-Fixation The process by which molecular nitrogen (N 2 ) is reduced to ammonia (NH 3 ) is called nitrogen-fixation (N 2 -fixation). This is the most importa
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AYou are a sergeant in a community relations unit in a mid-sized metropolitan police department. Your division commander sent you off to a 1-week ethics school run by the Justice D
How does facilitated diffusion present similarities with enzymatic chemical reactions? One of the main examples of facilitated transport is the entrance of glucose from the blo
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Which are the molecules that make possible active transport through membranes? Ans) Active transport is made by particular membrane proteins. These proteins are known as "pumps"
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