All Or None
WM31482
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Does anyone know the meaning behind all or none? Or know of any articles, bootlegs, etc. that reference it? thx!
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In securities transactions, AON is an attribute attached to a buy or sell order to indicate that the transaction has to be executed in its entirety, i.e. the specified number of shares have to be filled and no partial execution is acceptable. AON does not automatically cancel an order if it cannot be filled as designated, but could be executed without the AON requirement.
In investment banking, an all-or-none clause in an underwriting contract or investment prospectus gives a securities issuer the right to cancel an issue in its entirety if the underwriting is not fully subscribed.
In biology, sometimes the phrase all-or-none is also used to describe the behavior of the action potentials of neurons, where, if a neuron fires at all, it will be propagated all the way from the beginning to the end of the axonal process.
The all-or-none law is the principle that the strength by which a nerve or muscle fiber responds to a stimulus is not dependent on the strength of the stimulus. If the stimulus is any strength above threshold, the nerve or muscle fiber will give a complete response or otherwise no response at all.
It was first established by the American physiologist Henry Pickering Bowditch in 1871 for the contraction of heart muscle. According to him, describing the relation of response to stimulus,
“An induction shock produces a contraction or fails to do so according to its strength; if it does so at all, it produces the greatest contraction that can be produced by any strength of stimulus in the condition of the muscle at the time.”
The individual fibers of both skeletal muscle and nerve respond to stimulation according to the all-or-none principle.
You can make your own conclusions now. I hope I helped you with this information. Good morning and have a nice day all the way from Greece!
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