Dear all,
The Topological Combinatorics seminar will resume tomorrow April 14 at
10AM, with a guest talk by Caroline Uhler (grad student at Berkeley).
She will present some ongoing work regarding 'Chromosome packing in
cell nuclei', incorporating some ideas from computational topology
(abstract below). Please join us!
Next week we will return to our theme of matroid bundles; once again,
please let me or Alex know if you care to volunteer to speak.
As always we meet at 10AM in Evans 939.
http://math.stanford.edu/~anton/seminar2011.html
See you tomorrow!
anton
Caroline's abstract:
During most of the cell cycle each chromosome occupies a roughly
spherical domain called a chromosome territory. Chromosome territories
can overlap and their radial and relative positions are non-random and
similar among similar cell types. A chromosome arrangement can be
viewed as a packing of overlapping spheres of various sizes inside an
ellipsoid, the cell nucleus. We present a non-convex model for
chromosome arrangements and are particularly interested in the
resulting number and volume of internal 'holes', which make
chromosomes deep inside accessible to regulatory factors.