Editing Cooperativity (section)

==Link between Hill coefficient and response coefficient==  
Altszyler et al. (2017) have shown that these ultrasensitivity measures can be linked by the following equation:<ref name="Altszyler_2017" />

:<math chem> n_H = 2 \frac{\int^\ce{\log(EC90)}_\ce{\log(EC10)} R_f(I) d(\log I)}\ce{ \log(EC90)-\log(EC10)} = 2 \langle R_f \rangle_\ce{EC10,EC90}  </math>

where <math>\langle X \rangle_{a,b}</math> denoted the mean value of the variable x over the range [a,b].