30th Marian Smoluchowski Symposium on Statistical Physics

Session

Session 5

5 Sept 2017, 11:00

Conveners

Session 5: Panel B

• Henrik Flyvbjerg (Technical University of Denmark)

134. A mesoscopic model for the DNA G-quadruplex stability analysis

Alessandro Fiasconaro (Universidad de Zaragoza, Spain)

05/09/2017, 11:00

oral

The G-quadruplexes (G4) are non-canonical secondary DNA and RNA structures composed of four guanine basis bonded each other in a quartets forming piled planes. They have been found both in vivo and in vitro cultures, and have important role in telomere end-protection, and chromosome stability. Their folding patterns and structures are also found in eukaryotic promoter regions of oncogenes,...

59. Diffusion of a tagged particle in two dimensional elastic networks

Michael Lomholt (University of Southern Denmark)

05/09/2017, 11:30

oral

I will discuss the long time asymptotic behavior of a tagged particle in two dimensional systems, where the particles are stuck with their neighbors. This corresponds to single-file diffusion in one dimension, where the mean squared displacement of a particle grows with the square root of time. In two dimensions it turns out that the mean square displacement grows logarithmically. I will show...

96. Stochastic gene expression in cells undergoing division

Anna Ochab-Marcinek (Institute of Physical Chemistry, Polish Academy of Sciences)

05/09/2017, 11:50

oral

Stochasticity in gene expression is one of the most important problems of quantitative biology. It has been shown that, in the systems as small as living cells, production of proteins is strongly affected by random fluctuations coming from various sources. As a result, the biological noise is a meaningful factor influencing cellular processes and cell-fate decisions. The particular questions...

31. Mechanical interactions affect biological evolution in bacterial colonies

Bartlomiej Waclaw (University of Edinburgh)

05/09/2017, 12:10

oral

Bacterial conglomerates such as biofilms and microcolonies are ubiquitous in nature and play an important role in industry and medicine. In contrast to well-mixed cultures routinely used in microbial research, bacteria in a microcolony interact mechanically with one another and with the substrate to which they are attached. Here we use a computer model of a microbial colony of rod-shaped cells...