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To: Alamo-Girl

Thanks for the ping. A problem with the argument about Biological information is starting from a common definition of biological information.


201 posted on 08/30/2004 8:32:45 AM PDT by AndrewC (I am a Bertrand Russell agnostic, even an atheist.</sarcasm>)
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To: AndrewC
Thank you so much for your reply!

A problem with the argument about Biological information is starting from a common definition of biological information.

Fortunately, the researchers commonly use the Shannon definition:

Glossary: Schneider (Laboratory of Experimental and Computational Biology)

information: Information is measured as the decrease in uncertainty of a receiver or molecular machine in going from the before state to the after state.

"In spite of this dependence on the coordinate system the entropy concept is as important in the continuous case as the discrete case. This is due to the fact that the derived concepts of information rate and channel capacity depend on the difference of two entropies and this difference does not depend on the coordinate frame, each of the two terms being changed by the same amount."

--- Claude Shannon, A Mathematical Theory of Communication, Part III, section 20, number 3

Information is usually measured in bits per second or bits per molecular machine operation.


211 posted on 08/30/2004 8:50:01 AM PDT by Alamo-Girl
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To: AndrewC
Thanks for the ping. A problem with the argument about Biological information is starting from a common definition of biological information.

I would agree, but these days, it's very difficult to define a point of reference. Heck, since Klinton, there isn't even a common definition of "is".

237 posted on 08/30/2004 12:01:45 PM PDT by stop_killing_unborn_babies (Abortion is America's Holocaust)
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