Recently Peres and Shields discovered a new method for estimating the order of a stationary fixed order Markov chain. They showed that the estimator is consistent by proving a threshold result. While this threshold is valid asymptotically in the limit, it is not very useful for DNA sequence...

Explaining embryonic development of multicellular organisms requires insight into complex interactions between genetic regulation and physical, generic mechanisms at multiple scales. As more physicists move into developmental biology, we need to be aware of the “cultural” differences between...

The activity of the cell is often coordinated by the organisation of proteins into regulatory circuits that share a common function. Genome-wide expression profiles might contain important information on these circuits. Current approaches for the analysis of gene expression data include...

While mosts cells are polarized and give rise to complex structures as they grow, some cells, like those found in several tumors, are unpolarized, and produce spherical, or almost-spherical structures. Tumor spheroids may be grown in vitro and yield useful information on tumor dynamics, but...