3 papers
q-bio.PE2025
A master equation approach to the n-coalescent problem
Bahram Houchmandzadeh
Given an evolutionary model, such as Wright--Fisher (WF) or Moran, the n-coalescent problem consists of going backward in time to find for example the time to the most recent commo…
physics.class-ph2025
A geometric derivation of Noether's theorem
Bahram Houchmandzadeh
Noether's theorem is a cornerstone of analytical mechanics, making the link between symmetries and conserved quantities. In this article, I propose a simple, geometric derivation o…
q-bio.MN2024
When lowering temperature, the in vivo circadian clock in cyanobacteria follows and surpasses the in vitro protein clock trough the Hopf bifurcation
I. Mihalcescu, H. Kaji, H. Maruyama +4
The in vivo circadian clock in single cyanobacteria is studied here by time-lapse fluorescence microscopy when the temperature is lowered below 25°C . We first disentangle the cir…