# Counting processes in cancer biology

#### Counting processes in cancer biology

- Event time: 11:30am
- Event date: 4th May 2016
- Speaker: Dr Bartlomiej Waclaw (School of Physics & Astronomy, University of Edinburgh)
- Location: Room 2511, James Clerk Maxwell Building (JCMB) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB

### Event details

In 1953 Nordling came up with an interesting observation concerning cancer incidence rates as a function of age: the probability (per year) of getting cancer follows a power law P\sim T^\alpha where T is the age and \alpha=6 for many cancers. Following this, in 1954 Armitage and Doll proposed a simple model explaining this power law. Their model is based on a stochastic process called the counting process. In this talk I will explain what this process is, how to calculate the time to k events of some sort, and discuss some special cases (Poisson process and some simple models of cancer).

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