Decoy

The word decoy, also originally found in English as "coy", derives from the Dutch de Kooi (the cage) and dates back to the early 17th century, when this type of duck trap was introduced to England from the Netherlands.

[4] Wildfowl decoys (primarily ducks, geese, shorebirds, and crows, but including some other species) are considered a form of folk art.

The world record was set in September 2007 when a pintail drake and Canada goose, both by A. Elmer Crowell, sold for 1.13 million dollars apiece.

They may be used in different ways: In irregular warfare, improvised explosive devices (IEDs) are commonly used as roadside bombs to target military patrols.

Examples include K3L produced by vaccinia virus, which prevents the immune system from phosphorylating the substrate eIF-2 by having a similar structure to eIF-2.

Decoys are generally used to overcome a main problem in protein folding simulations: the size of the conformational space.

A typical decoy set will include globular conformations of various shapes, some having no secondary structures, some having helices and sheets in different proportions.