Answers (6)

sheil_34 27-05-2013
sheil_34 - Aligarh Muslim University

S-shaped. E.g. Gyrosigma and some species of Nitzschia.

sheba_876 27-05-2013
sheba_876 - Mohammad Ali Jinnah University

 In neural networks, the use of a sigmoid transfer function (as opposed to a step function) allows the function to be differentiated and thus allows back-propagation of values for automated learning.

lalan 04-06-2013
lalan - Allahabad University
"Binding of one molecule facilitate the second molecule binding and P 50 (partial pressure of O2 at which Hb is half saturated with O2) 26.6mmHg. <a href= > Sigmoid shape </a>"

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