PhD student José Giral Barajas explains how he is using queueing theory to understand how cells move and accumulate materials.

Imagine you need to deliver a package to someone in a crowded place, but you have no idea where they are. No matter how determined you are to take a specific path, the constant collisions with all the people around you will force you to change direction most of the time. The path you take in your search for the recipient becomes effectively random. This simple picture is a helpful way to think about how cells move materials.