Dhad Sarangi
Dhad may refer to: * Dihydroxy-acid dehydratase, an enzyme * Dhadd, an hourglass-shaped traditional musical instrument * Raid (military) Raiding, also known as depredation, is a military tactic or operational warfare mission which has a specific purpose. Raiders do not capture and hold a location, but quickly retreat to a previous defended position before enemy forces can respond i ...

Dihydroxy-acid Dehydratase
The enzyme dihydroxy-acid dehydratase () catalyzes the chemical reaction :2,3-dihydroxy-3-methylbutanoate \rightleftharpoons 3-methyl-2-oxobutanoate + H2O This enzyme participates in valine, leucine and isoleucine biosynthesis and pantothenate and coenzyme A (CoA) biosynthesis. Nomenclature This enzyme belongs to the family of lyases, specifically the hydro-lyases, which cleave carbon-oxygen bonds. The systematic name A systematic name is a name given in a systematic way to one unique group, organism, object or chemical substance, out of a specific population or collection. Systematic names are usually part of a nomenclature. A semisystematic name or semitrivial ... of this enzyme class is 2,3-dihydroxy-3-methylbutanoate hydro-lyase (3-methyl-2-oxobutanoate-forming). Other names in common use include * acetohydroxyacid dehydratase, * α,β-dihydroxyacid dehydratase, * 2,3-dihydroxyisovalerate dehydratase, * α,β-dihydroxyisovalerate dehydratase, * dihydroxy acid dehydrase, ...
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Dhadd
Dhadd ( pa, ਢੱਡ), also spelled as Dhad or Dhadh is an hourglass-shaped traditional musical instrument native to Punjab that is mainly used by the Dhadi singers. It is also used by other folk singers of the region. Design and playing The dhadd is made of wood with thin a waist like an hourglass. The skin on both sides is tightened with ropes that help in holding the instrument firmly together. Its design is very similar to other Indian drums: the simple Damru, the Udukai, and the sophisticated Idakka. The Damru has knotted cords to strike its ends, but the Dhadd lacks such cords. The Damru is played by shaking/rotating quickly so that the knotted cords strike its ends, and is also played with a stick sometimes. The Udukai and the Dhad have similar techniques of playing, but the social significance is different. ;Playing The Dhadd is played by tapping/striking fingers on one of its ends. The pitch of the drum is raised by tightening a small cloth band wrapped around th ...
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