30th Marian Smoluchowski Symposium on Statistical Physics

Session

Session 7

5 Sept 2017, 16:00

Conveners

Session 7: Panel A

• Martin Bier (East Carolina University)

137. Stochastic dynamics in biological ion channels

Peter McClintock (Department of Physics, Lancaster University)

05/09/2017, 16:00

oral

The passage of ions through biological cell membranes [1] is essential for life at all levels. It occurs via ion channels through proteins embedded in the membrane, and involves Brownian motion under the influence of powerful electrostatic forces. The permeation process is highly selective, e.g. in valence selectivity a calcium channel selects Ca$^{2+}$ over Na$^+$ by up to 1000:1. There is...

141. Stochastic modeling of diffusion in dynamical systems: three examples

Rainer Klages (Queen Mary University of London)

05/09/2017, 16:30

oral

Consider equations of motion that generate dispersion of an ensemble of particles. For a given dynamical system an interesting problem is not only what type of diffusion is generated by its equations of motion but also whether the resulting diffusive dynamics can be reproduced by some known stochastic model. I will discuss three examples of dynamical systems generating different types of...

18. Understanding cooperativity and dynamic disorder in fluctuating enzymes at the single molecule level

Srabanti Chaudhury (Indian Institute of Science Education and Research)

05/09/2017, 17:00

oral

Single molecule techniques allow researchers to study not only the average reaction rates but also the statistics of single molecule transitions in the context of enzymatic reactions. Such measurements show that the slow fluctuation between enzyme conformers can lead to fluctuations in the rate constants of the reaction, a phenomenon known as dynamic disorder [1]. The most accessible...

168. Evolution of information within sEMG signals in the process of treatment

Lukasz Machura (University of Silesia)

05/09/2017, 17:20

oral

Colorectal cancer remains to be one among 5 most common types of cancer found for both men and women. Typically multimodal treatment including surgery, radiation and chemotherapy is applied. The electrical activity of external anal sphincter can serve as a potential source of knowledge of the actual state of the patient. The signals registered by means of the surface electromyography are...