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Carpentier -Edwards Valve (C-E) : This is porcine aortic valve preserved in gluteraldehyde and mounted on flexible stent made of cobalt-chromium-nickel alloy (ELGILOY). Gluteraldehyde, a chemical used for tanning of leather causes stability to valve leaflets due to cross linkage of collagen fibres and it reduces antigenicity. It has sewing ring with polytetra fluoro ethylene (PTFEGoretex), incorporating silicon rubber. Valves are available for aortic and mitral position in various sizes. Biological deterioration will occur after 7- 10 years but mechanical failure is uncommon. The rate of biological deterioration 'is faster in children.
Chemical disasters arise from harmful and potentially hazardous chemicals, which if released of misused can pose a threat to the environmental. Its range depends upon military and
taxonomy research cat
This is a broadly used screening technique that find several genomic mutations in wide number of samples, this technique finds sequence variations because of point mutations or oth
Arboriculture : It deals with the cultivation of ornamental plants. Arboriculture is the cultivation, management or study of individual shrubs, trees, vines, or other perennial woo
Explain the diagnostic set-up surgical stent The patient should understand the procedure and be warned of any complications. They should have agreed with the treatment plan, t
Define Assessment of Calcium Status and Calcium Requirements? There is no biochemical indicator, which can clearly reflect calcium status. It has also been seen that in case of
Define the Disc Electrophoresis? Disc electrophoresis has improved resolution and strong bands are obtained. It requires a two-gel system and several different buffers. The run
Explain Acidic Stains (anionic) - Types of Stains? These are sodium, potassium, calcium or ammonium salts of coloured acids, which on ionization give negatively charged chromog
Q How does water move in sponges? What is the function of the pores in these animals? Sponges are filtering beings they make water enter their bodies by their lateral pores. Wa
What is the Axes of Fick The Axes of Fick show that any eye position can be specified as the amount of rotation around a set of axes fixed in the orbit: 1) Vertical Axis: Z-
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