• 31 Posts
  • 15 Comments
Joined 1 year ago
cake
Cake day: June 22nd, 2023

help-circle











  • Well, it is technically differential equations, but with weighted inputs like a NN. Here’s the equations

    for each node (gene/morphogen) i. zi is the concentration of morphogen i, zj is that of j. f(x) is the sigmoid function, k1 is the maximum rate of expression, k2 is the degradation rate, b is the bias. wij is the weight for an edge from j to i.

    This is just written in python, so the network is defined by a matrix with each number representing the weight between two of the edges. I ignore the edge if it’s weight is zero.

    What are the standard symbols for genetic circuits?

    edit: sorry it’s impossible to see the equations if you have a black background.







  • This exact thought has been tossing around in the back of my mind since I read it. I was trying to figure out the legitimate reasons for not wanting to live in a city, and as far as I can tell, there are a few. But I’m not sure if it’s worse than living 45min away from downtown in some suburb and always feeling stranded without gasoline, no-matter if you are at home(too far away from the grocery store), in the city, or somewhere on the long highway connecting the two. There is no place for a person without a car really, not for more than a couple hours.